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Mikulec AT, Platta AM, Radzymińska M, Ruszkowska M, Mikulec K, Suwała G, Kowalski S, Kowalczewski PŁ, Nowicki M. Attitudes and purchase intentions of polish university students towards food made from insects-A modelling approach. PLoS One 2024; 19:e0300871. [PMID: 38551941 PMCID: PMC10980220 DOI: 10.1371/journal.pone.0300871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 03/06/2024] [Indexed: 04/01/2024] Open
Abstract
The marketing of insect-derived protein has led to the development of respective legal regulations on such insects-based foods in the European Union. Despite the interest in the area of insect-based food, European researchers have paid relatively little attention to consumer attitudes and behaviors towards such products or the factors that may affect them. Attempts undertaken so far in this respect are insufficient; therefore, there is a need to continue and expand research in this field. The present study attempts to verify the following research hypotheses: H1. Attitudes towards food containing insects are related to the attributes/characteristics of these products, care for health and the natural environment, and attitudes towards novelty (neophilic/neophobic); H2. Intentions to purchase food containing insects can be predicted based on attitudes towards food from insects, product attributes, and attitudes towards environmental health and novelties. An empirical study was conducted among university students (N = 1063) by an indirect interview method using a specially designed questionnaire, via an online platform (Computer-Assisted Web Interview, CAWI) in November 2023. The questionnaire was validated by assessing the construction validity and estimating the reliability of the scales used. The study results demonstrated that the attributes of insect-based food products can influence the positive attitudes towards them and behavioral intentions to consume them, and that the strength of the impact of health quality traits is far greater than that of the organoleptic or functional traits. A negative, statistically significant value of the correlation coefficient between neophobic attitude and intention to purchase this type of food was observed. Thus, respondents without food neophobia were characterized by a positive attitude towards the purchase of foods containing edible insects in their composition.
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Affiliation(s)
- Anna T. Mikulec
- Faculty of Engineering Sciences, University of Applied Science in Nowy Sącz, Nowy Sącz, Poland
| | - Anna M. Platta
- Faculty of Management and Quality Science, Gdynia Maritime University, Gdynia, Poland
| | - Monika Radzymińska
- Faculty of Economic Sciences, Institute of Management Science and Quality, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Millena Ruszkowska
- Faculty of Management and Quality Science, Gdynia Maritime University, Gdynia, Poland
| | | | - Grzegorz Suwała
- Department of Food Product Quality, Krakow University of Economics, Kraków, Poland
| | - Stanisław Kowalski
- Faculty of Food Technology, Department of Carbohydrate Technology and Cereal Processing, University of Agriculture in Krakow Poland, Krakow, Poland
| | | | - Marcin Nowicki
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN, United States of America
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Skotnicka M, Mazurek A, Kowalski S. The Acceptance of Cream Soups with the Addition of Edible Insects (Mealworm, T. molitor; House Cricket, A. domesticus; Buffalo Worm, A. diaperinus; Grasshopper, R. differens) among Young People and Seniors in Poland. Nutrients 2023; 15:5047. [PMID: 38140306 PMCID: PMC10745299 DOI: 10.3390/nu15245047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Research on the acceptance of consuming insects in one's diet shows the increasing importance of this issue in the context of a sustainable food chain and ecology. Insects represent a promising food source due to their high nutritional value, efficiency in production, and minimal environmental impact, as well as the growing awareness of ecological issues. Despite these benefits, cultural and psychological barriers hinder the acceptance of consuming insects in Western countries. In this study, an assessment was made of the acceptance level of cream-type soups made from tomatoes and white vegetables with the addition of 20% flour from four insect species: mealworm (T. molitor); house cricket (A. domesticus); buffalo worm (A. diaperinus); and grasshopper (R. differens), compared to a control sample. One hundred and four subjects (55 seniors and 49 young adults) participated in this study. The acceptance level of various soups with insect flour was evaluated, considering different sensory parameters such as appearance, smell, taste, and texture. The research showed that older people have a lower acceptance for dishes containing insects compared to young adults, but the differences in the responses given were not statistically significant (p = 0.05), rejecting the assumption that insect-based products should be mainly targeted at young people. Of all the proposed test samples, the mealworm (T. molitor) was the most acceptable insect species in the tests in both taste versions for both age groups. The average score was 6.63 points on a 10-point scale. The products with the addition of grasshopper (R. differens) were rated the lowest. The acceptance level ranged between 4.23 and 4.38 points. A multiple regression analysis showed that taste and texture had the strongest influence on the overall acceptance of these dishes, and the results obtained were highly correlated with the general opinion of the testers. The increasing acceptance level and growing interest in this type of food can be a positive step towards sustainable and efficient food production.
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Affiliation(s)
- Magdalena Skotnicka
- Department of Commodity Science, Medical University of Gdańsk, 80-211 Gdańsk, Poland;
| | - Aleksandra Mazurek
- Department of Commodity Science, Medical University of Gdańsk, 80-211 Gdańsk, Poland;
| | - Stanisław Kowalski
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, 31-120 Kraków, Poland;
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Kowalski S, Gumul D, Oracz J, Rosicka-Kaczmarek J, Mikulec A, Mickowska B, Skotnicka M, Zborowski M. Chemical Composition, Antioxidant Properties and Sensory Aspects of Sponge Cakes Supplemented with Edible Insect Flours. Antioxidants (Basel) 2023; 12:1912. [PMID: 38001765 PMCID: PMC10669623 DOI: 10.3390/antiox12111912] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/23/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
The chemical composition, antioxidant properties, and sensory aspects of sponge cakes with the addition of flours from edible insects (buffalo worm, cricket, and mealworm) were evaluated. The addition of edible-insect flours increased the protein, fat, and dietary fiber content in all cases. The utilization of edible insects demonstrated a notable augmentation in the phenolic compounds (especially protocatechuic acid and protocatechuic aldehyde, and syringic, ferulic, and sinapic acids). This resulted in an increase in the antioxidant activity measured against the ABTS radical cation, the DPPH radical, and ferric ions. The antioxidant potential, assessed by four different methods, unequivocally confirmed that the aforementioned polyphenolic compounds found in edible insects provide significant radical-scavenging and antioxidant activity in sponge cakes containing them. The polyunsaturated fatty acid contents were significantly lower in cakes with insect flour compared to the standard wheat cakes. Products and raw materials exhibited high values of the n - 6/n - 3 ratio, which may be associated with negative health effects, with a high oleic acid content. The amino acid score (AAS) for the essential amino acids exceeded 100% for all obtained products. The sponge cakes were accepted by consumers and the taste was the most important predictor for overall acceptability, whereas the structure and appearance had less impact.
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Affiliation(s)
- Stanisław Kowalski
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, 122 Balicka Street, 30-149 Krakow, Poland;
| | - Dorota Gumul
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, 122 Balicka Street, 30-149 Krakow, Poland;
| | - Joanna Oracz
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Łódź, Poland; (J.O.); (J.R.-K.)
| | - Justyna Rosicka-Kaczmarek
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Łódź, Poland; (J.O.); (J.R.-K.)
| | - Anna Mikulec
- Department of Engineering Sciences, Academy of Applied Science in Nowy Sacz, 1a Zamenhofa Street, 33-300 Nowy Sacz, Poland;
| | - Barbara Mickowska
- Department of Plant Product Technology and Nutrition Hygiene, Faculty of Food Technology, University of Agriculture in Krakow, 122 Balicka Street, 30-149 Krakow, Poland;
| | - Magdalena Skotnicka
- Department of Commodity Science, Faculty of Health Sciences, Medical University of Gdansk, 3a Marii Skłodowskiej-Curie Street, 80-210 Gdansk, Poland;
| | - Marek Zborowski
- Department of Health Science, Academy of Applied Science in Nowy Sacz, 2G Kościuszki Street, 33-300 Nowy Sacz, Poland;
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Oracz J, Kowalski S, Żyżelewicz D, Kowalska G, Gumul D, Kulbat-Warycha K, Rosicka-Kaczmarek J, Brzozowska A, Grzegorczyk A, Areczuk A. The Influence of Microwave-Assisted Extraction on the Phenolic Compound Profile and Biological Activities of Extracts from Selected Scutellaria Species. Molecules 2023; 28:molecules28093877. [PMID: 37175287 PMCID: PMC10180449 DOI: 10.3390/molecules28093877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 04/26/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
The aim of the study was to investigate the effects of microwave-assisted extraction (MAE) conditions (microwave power, extraction time, and ethanol concentration) on the efficiency of the extraction of phenolic compounds from selected plant species belonging to the genus Scutellaria (i.e., Scutellaria baicalensis and Scutellaria lateriflora). The extracts from selected Scutellaria species were examined to establish the total phenolic content and the in vitro antioxidant and anti-inflammatory activity. The antioxidant capacity was determined by the ferric reducing antioxidant power (FRAP) and 2,2,1-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity methods. The anti-inflammatory activity was evaluated through the lipoxygenase (LOX) inhibitory assay. The phenolic profile of the extracts was characterized using ultra-high performance liquid chromatography coupled with diode array detection and high-resolution electrospray ionization mass spectrometry (UHPLC-DAD/ESI-HRMS/MS). Depending on the type of solvent and the extraction conditions used, the extracts obtained from selected Scutellaria species showed different total and individual phenolic content, as well as different antioxidant and anti-inflammatory properties. The results showed that all Scutellaria extracts had high total phenolic content and exhibited strong ferric ion reducing power and free radical scavenging capacity and a significant ability to inhibit the LOX activity. In general, the 70% ethanol extracts contained more phenolic compounds, mainly flavones, flavanones, and their derivatives, and showed greater in vitro biological activity than other extracts. The highest levels of phenolic compounds and the strongest antioxidant and anti-inflammatory potential were found in extracts from the roots of S. baicalensis. Optimal extraction conditions for all the plant materials tested were determined as the microwave power of 63 W, extraction time of 10 min, and 70% ethanol as the solvent.
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Affiliation(s)
- Joanna Oracz
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Lodz, Poland
| | - Stanisław Kowalski
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Balicka Str. 122, 30-149 Krakow, Poland
| | - Dorota Żyżelewicz
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Lodz, Poland
| | - Gabriela Kowalska
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Lodz, Poland
| | - Dorota Gumul
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Balicka Str. 122, 30-149 Krakow, Poland
| | - Kamila Kulbat-Warycha
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Lodz, Poland
| | - Justyna Rosicka-Kaczmarek
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Lodz, Poland
| | - Anna Brzozowska
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Lodz, Poland
| | - Aleksandra Grzegorczyk
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Lodz, Poland
| | - Anna Areczuk
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Balicka Str. 122, 30-149 Krakow, Poland
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Gumul D, Oracz J, Kowalski S, Mikulec A, Skotnicka M, Karwowska K, Areczuk A. Bioactive Compounds and Antioxidant Composition of Nut Bars with Addition of Various Edible Insect Flours. Molecules 2023; 28:molecules28083556. [PMID: 37110790 PMCID: PMC10143157 DOI: 10.3390/molecules28083556] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 04/13/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
Edible insects represent a new functional source of nutrients that can contribute to solving nutritional deficiency problems. The antioxidant potential and bioactive compounds of nut bars with the addition of three edible insects were evaluated. Acheta domesticus L., Alphitobius diaperinus P. and Tenebrio molitor L. flours were used. A 30% share of insect flour in the bars resulted in significantly greater antioxidant activity (TPC increased from 190.19 for standard bars to 309.45 mg catechin/100 g for bars with 30% addition of cricket flour). Insect flour contributed significantly to an increase in 2,5-dihydrobenzoic acid (from 0.12 for bars with a 15% share of buffalo worm flour to 0.44 mg/100 g in the case of bars with a 30% share of cricket flour) and chlorogenic acid in all bars (from 0.58 for bars with a 15% share of cricket flour to 3.28 mg/100 g for bars with a 30% addition of buffalo worm flour), compared to the standard. The highest content of tocopherols was found in bars with cricket flour, compared to standard bars (43.57 and 24.06 mg/100 g of fat, respectively). The dominant sterol in bars enriched with insect powder was cholesterol. The highest amount of it was found in cricket bars, and the lowest in mealworm bars (64.16 and 21.62 mg/100 g of fat, respectively). The enrichment of nut bars with insect flours raises the levels of valuable phytosterols in the final product. The addition of edible insect flours reduced the perception of most sensory attributes of the bars, compared to the standard bar.
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Affiliation(s)
- Dorota Gumul
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, 122 Balicka Street, 30-149 Krakow, Poland
| | - Joanna Oracz
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 2/22 Stefanowskiego Street, 90-537 Lodz, Poland
| | - Stanisław Kowalski
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, 122 Balicka Street, 30-149 Krakow, Poland
| | - Anna Mikulec
- Faculty of Engineering Sciences, University of Applied Science in Nowy Sacz, 1a Zamenhofa Street, 33-300 Nowy Sacz, Poland
| | - Magdalena Skotnicka
- Department of Commodity Science, Faculty of Health Sciences, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Kaja Karwowska
- Department of Commodity Science, Faculty of Health Sciences, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Anna Areczuk
- Department of Carbohydrate Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, 122 Balicka Street, 30-149 Krakow, Poland
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Gumul D, Kruczek M, Ivanišová E, Słupski J, Kowalski S. Apple Pomace as an Ingredient Enriching Wheat Pasta with Health-Promoting Compounds. Foods 2023; 12:foods12040804. [PMID: 36832879 PMCID: PMC9957340 DOI: 10.3390/foods12040804] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
The global overproduction of apples is associated with large amounts of post-production waste, for which new forms of utilization should be sought. Therefore, we aimed to enrich wheat pasta with apple pomace in various percentages (10, 20, 30 and 50%). The content of total polyphenols, individual polyphenols (using UPLC-PDA-MS/MS methods) and dietary fibre, chemical composition and physical properties of the resulting pasta were determined. The addition of apple pomace to pasta resulted in increased levels of pro-health compounds: total polyphenols, phenolic acids, quercetin derivatives, flavon-3-ols and dihydrochalcones as well as dietary fibre. Decreases in hardness and maximum cutting energy were also observed in pasta supplemented with apple pomace compared to control pasta. Water absorption capacity was not influenced by the addition of apple pomace, with the exception of pasta made with 50% apple pomace.
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Affiliation(s)
- Dorota Gumul
- Department of Carbohydrates Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Balicka Street 122, 31-149 Krakow, Poland
| | - Marek Kruczek
- Department of Carbohydrates Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Balicka Street 122, 31-149 Krakow, Poland
| | - Eva Ivanišová
- Institute of Food Science, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Trieda A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Jacek Słupski
- Department of Plant Products Technology and Hygiene Nutrition, Faculty of Food Technology, University of Agriculture in Krakow, Balicka Street 122, 31-149 Krakow, Poland
| | - Stanisław Kowalski
- Department of Carbohydrates Technology and Cereal Processing, Faculty of Food Technology, University of Agriculture in Krakow, Balicka Street 122, 31-149 Krakow, Poland
- Correspondence:
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Kowalski S, Mikulec A, Skotnicka M, Mickowska B, Makarewicz M, Sabat R, Wywrocka-Gurgul A, Mazurek A. Effect of the Addition of Edible Insect Flour from Yellow Mealworm (<i>Tenebrio molitor</i>) on the Sensory Acceptance, and the Physicochemical and Textural Properties of Sponge Cake. POL J FOOD NUTR SCI 2022. [DOI: 10.31883/pjfns/155405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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M M de Souza S, Medeiros-Ribeiro AC, Bredemeier M, Duarte A, Pinheiro M, Stadler B, Macieira JC, Ranza R, Miranda J, Valim V, Castro G, Bertolo M, Sauma MDF, Fernandes V, Botelho R, Brenol C, Da Silveira DE Carvalho HM, Studart S, Da Rocha Castelar Pinheiro G, Rocha L, De Leon de Lima H, Pereira I, Ohira Gazzeta M, Kakehasi A, Louzada P, Hayata ALS, Pina F, Alves Ferreira M, Balarini L, Silveira IG, Kowalski S, Titton D, Mendonça Da Silva Chakr R, Ranzolin A, Laurindo I, Xavier R. AB1173 INCIDENT CASES OF COVID-19 AND VACCINATION ADHERENCE IN A MULTICENTRIC COHORT OF INFLAMMATORY ARTHRITIS IN BRAZIL. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundThe SARS-CoV-2 virus has caused a worldwide health crisis. Patients with inflammatory arthritis are at higher risk of hospitalization and death by COVID-19 due to comorbidities or immunosuppressive treatments. Vaccination is one the most important strategies to control the pandemic.ObjectivesTo evaluate the incident cases of SARS-CoV-2 infection in a multicentric cohort of inflammatory arthritis in Brazil.MethodsBiobadaBrasil is a multicentric registry-based cohort study of Brazilian patients with rheumatic diseases starting their first bDMARD or tsDMARD (1). The present analysis is a retrospective evaluation of adult patients with inflammatory arthritis (rheumatoid arthritis – RA, spondylarthritis -SpA and psoriatic arthritis-PsA) that were alive since the beginning of the COVID-19 pandemics in Brazil in February 2020. We evaluated the incidence and severity of COVID-19 infection and the adherence to anti- SARS-CoV-2 vaccines schedules, up to January 2022.ResultsA total of 300 patients were interviewed and 69 (23.0%) reported confirmed anti-SARS-CoV infection and 5 (1.7%) had a second infection. Among known infected patients, 18.8% need hospitalization and oxygen support, 7.2% were admitted at ICU, and 5.8% died. After COVID-19 infection, 31.8% reported worsening of disease activity but only 6.1% had modification in medication due to disease activity. Distribution of cases followed the pattern of waves observed in Brazil (Figure 1). Regarding vaccination, 285 (95%) reported to have received at least one dose of any anti-SARS-CoV-2 vaccine: 43% received the first with the adenovirus ChAdOx1 nCoV-19 (AstraZeneca) adenovirus vaccine, 32% received the Sinovac-CoronaVac inactivated vaccine, 22% received the BNT162b2 (Pfizer-BioNtech) mRNA vaccine and 3% received the BNT162b2 (Pfizer-BioNtech) adenovirus vaccine. Almost all (98.1%) of these patients had already received the second dose of vaccine and after the first and second vaccine doses, 6% and 4% of patients, respectively, reported worsening of articular disease activity, while, after the third dose, no patient reported disease activity worsening.Figure 1.ConclusionDuring the pandemics, patients with inflammatory arthritis had a pattern of distribution of cases very similar to general population. Adherence to vaccination is high and well tolerated.References[1]Bredemeier et al. J Rheumatol 2021;48:1519-27Disclosure of InterestsNone declared
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Bredemeier M, Duarte A, Pinheiro M, Stadler B, Macieira JC, Ranza R, Miranda J, Valim V, Castro G, Bertolo M, Sauma MDF, Fernandes V, Medeiros-Ribeiro AC, Botelho R, Brenol C, Da Silveira DE Carvalho HM, Studart S, Da Rocha Castelar Pinheiro G, Rocha L, De Leon de Lima H, Pereira I, Ohira Gazzeta M, Kakehasi A, Louzada P, Hayata ALS, Pina F, Alves Ferreira M, Balarini L, Silveira IG, Kowalski S, Titton D, Mendonça Da Silva Chakr R, Ranzolin A, Laurindo I, Xavier R. POS0242 THE EFFECT OF ANTIMALARIALS ON THE OVERALL SAFETY AND PERSISTENCE OF TREATMENT WITH BIOLOGIC AGENTS OR JAK INHIBITORS IN RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundAntimalarials (AM) are frequently part of the initial scheme of conventional synthetic DMARDs in the treatment of rheumatoid arthritis (RA), and have been associated with lower incidence of diabetes and better lipid profile in these patients (1). However, the role of AM in schemes involving biologic (b-) or targeted synthetic (ts-) DMARDs has been much less extensively studied. In addition, a recent large scale study (2) and a consensus article (1) casted doubt on the long-term cardiovascular safety of AM.ObjectivesTo evaluate the association of concomitant use of AM with the overall safety and survival oftreatment course among patients receiving one or multiple courses of bDMARDs or tsDMARDsMethodsBiobadaBrasil is a multicentric registry-based cohort study of Brazilian patients with rheumatic diseases starting their first bDMARD or tsDMARD (3). The present analysis includes RA patients recruited from Jan 2009 to Oct 2019, followed-up over one or multiple (up to six) courses of treatment (latest date, Nov 19, 2019). A treatment course is defined as a period during which the medication scheme does not change. The primary outcome was the incidence of serious adverse events (SAEs). Total and system-specific adverse events (AEs), treatment interruption for any reason, interruption due to AEs and due to inefficacy served as secondary outcomes. Negative binomial regression with generalized estimating equations (to calculate the incidence rate ratios [ÌRRs]) and extended (frailty) Cox proportional hazards models were used for statistical analyses (both types of analyses including time-varying covariates over multiple courses of treatment).ResultsIn total, 1316 patients (2335 treatment courses, 6711 patient-years [PY]) were enrolled. The overall incidence of serious adverse events was 9.2/100 PY. AM were used over 354 courses (1254.5 PY) of therapy. The IRRs for the primary and secondary outcomes are presented in Table 1. AM were also associated with better treatment course survival (Figure 1), reducing the risk of interruption due to AEs (multivariate hazard ratio: 0.56, 95% CI: 0.39 to 0.81, P=0.002) and inefficacy (0.65, 0.48 to 0.87, P=0.003).Figure 1.Table 1.Univariate and multivariate incidence rate ratios (IRRs) of adverse events comparing use versus non-use (reference category) of antimalarials. Results are IRRs, 95% CIs, and P values.Type of adverse event (n of events)Crude analysisAdjusted covariates*Serious adverse events (617)0.60 (0.41 to 0.87), P=0.0070.51 (0.37 to 0.69), P<0.001Any adverse event (3494)0.65 (0.54 to 0.77), P<0.0010.68 (0.57 to 0.81), P<0.001Cardiovascular‡Serious (52)1.04 (0.49 to 2.20), P=0.9241.06 (0.45 to 2.50), P=0.891Total (163)0.90 (0.59 to 1.38), P=0.6420.93 (0.59 to 1.45), P=0.737InfectionsSerious (277)0.78 (0.44 to 1.39), P=0.4040.53 (0.34 to 0.83), P=0.006Total (1400)0.77 (0.61 to 0.98), P=0.0330.75 (0.60 to 0.94), P=0.014Hepatic‡Total (66)0.20 (0.07 to 0.64), P=0.0070.16 (0.04 to 0.57), P=0.005Glicemic control-relatedTotal (34)0.74 (0.29 to 1.92), P=0.5400.73 (0.26 to 2.00), P=0.535DyslipidemiaTotal (83)0.60 (0.31 to 1.13), P=0.1140.55 (0.28 to 1.06), P=0.074*Age, baseline DAS28, disease duration, gender, smoking, seropositivity (RF or anti-CCP), previous malignancy, interstitial lung disease, diabetes, hypertension, hypercholesterolemia, renal failure, ischemic cardiomyopathy, COPD, heart failure, concomitant use of each cs-, b-, and tsDMARDs, corticosteroids, starting year, osteoporosis, hepatitis B and C, and treatment sequence. ‡ Excluding infections.ConclusionAmong RA patients on treatment with bDMARDs or tsDMARDs, concomitant use of antimalarials reduced the incidence of serious and total AEs, including infections and hepatic AEs, and prolonged treatment course survival. No significant increase in the risk of cardiovascular AEs was observed.References[1]Desmarais et al. Arthritis Rheumatol 2021;73:2151-60.[2]Lane et al. Lancet Rheumatol 2020;2:e698–e711[3]Bredemeier et al. J Rheumatol 2021;48:1519-27.Disclosure of InterestsNone declared
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Kowalski S, Mikulec A, Mickowska B, Skotnicka M, Mazurek A. Wheat bread supplementation with various edible insect flours. Influence of chemical composition on nutritional and technological aspects. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113220] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Androić D, Armstrong DS, Bartlett K, Beminiwattha RS, Benesch J, Benmokhtar F, Birchall J, Carlini RD, Cornejo JC, Covrig Dusa S, Dalton MM, Davis CA, Deconinck W, Dowd JF, Dunne JA, Dutta D, Duvall WS, Elaasar M, Falk WR, Finn JM, Forest T, Gal C, Gaskell D, Gericke MTW, Gray VM, Grimm K, Guo F, Hoskins JR, Jones DC, Jones MK, Kargiantoulakis M, King PM, Korkmaz E, Kowalski S, Leacock J, Leckey J, Lee AR, Lee JH, Lee L, MacEwan S, Mack D, Magee JA, Mahurin R, Mammei J, Martin JW, McHugh MJ, Meekins D, Mesick KE, Michaels R, Micherdzinska A, Mkrtchyan A, Mkrtchyan H, Narayan A, Ndukum LZ, Nelyubin V, van Oers WTH, Owen VF, Page SA, Pan J, Paschke KD, Phillips SK, Pitt ML, Radloff RW, Rajotte JF, Ramsay WD, Roche J, Sawatzky B, Seva T, Shabestari MH, Silwal R, Simicevic N, Smith GR, Solvignon P, Spayde DT, Subedi A, Suleiman R, Tadevosyan V, Tobias WA, Tvaskis V, Waidyawansa B, Wang P, Wells SP, Wood SA, Yang S, Zang P, Zhamkochyan S, Christy ME, Horowitz CJ, Fattoyev FJ, Lin Z. Determination of the ^{27}Al Neutron Distribution Radius from a Parity-Violating Electron Scattering Measurement. Phys Rev Lett 2022; 128:132501. [PMID: 35426696 DOI: 10.1103/physrevlett.128.132501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
We report the first measurement of the parity-violating elastic electron scattering asymmetry on ^{27}Al. The ^{27}Al elastic asymmetry is A_{PV}=2.16±0.11(stat)±0.16(syst) ppm, and was measured at ⟨Q^{2}⟩=0.02357±0.00010 GeV^{2}, ⟨θ_{lab}⟩=7.61°±0.02°, and ⟨E_{lab}⟩=1.157 GeV with the Q_{weak} apparatus at Jefferson Lab. Predictions using a simple Born approximation as well as more sophisticated distorted-wave calculations are in good agreement with this result. From this asymmetry the ^{27}Al neutron radius R_{n}=2.89±0.12 fm was determined using a many-models correlation technique. The corresponding neutron skin thickness R_{n}-R_{p}=-0.04±0.12 fm is small, as expected for a light nucleus with a neutron excess of only 1. This result thus serves as a successful benchmark for electroweak determinations of neutron radii on heavier nuclei. A tree-level approach was used to extract the ^{27}Al weak radius R_{w}=3.00±0.15 fm, and the weak skin thickness R_{wk}-R_{ch}=-0.04±0.15 fm. The weak form factor at this Q^{2} is F_{wk}=0.39±0.04.
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Affiliation(s)
- D Androić
- University of Zagreb, Zagreb, HR 10002, Croatia
| | | | - K Bartlett
- William & Mary, Williamsburg, Virginia 23185, USA
| | | | - J Benesch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Benmokhtar
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - J Birchall
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - R D Carlini
- William & Mary, Williamsburg, Virginia 23185, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Cornejo
- William & Mary, Williamsburg, Virginia 23185, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M M Dalton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - C A Davis
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - W Deconinck
- William & Mary, Williamsburg, Virginia 23185, USA
| | - J F Dowd
- William & Mary, Williamsburg, Virginia 23185, USA
| | - J A Dunne
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - W S Duvall
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - M Elaasar
- Southern University at New Orleans, New Orleans, Louisiana 70126, USA
| | - W R Falk
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J M Finn
- William & Mary, Williamsburg, Virginia 23185, USA
| | - T Forest
- Idaho State University, Pocatello, Idaho 83209, USA
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M T W Gericke
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - V M Gray
- William & Mary, Williamsburg, Virginia 23185, USA
| | - K Grimm
- William & Mary, Williamsburg, Virginia 23185, USA
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - F Guo
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J R Hoskins
- William & Mary, Williamsburg, Virginia 23185, USA
| | - D C Jones
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - E Korkmaz
- University of Northern British Columbia, Prince George, British Columbia V2N4Z9, Canada
| | - S Kowalski
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Leacock
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - J Leckey
- William & Mary, Williamsburg, Virginia 23185, USA
| | - A R Lee
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - J H Lee
- William & Mary, Williamsburg, Virginia 23185, USA
- Ohio University, Athens, Ohio 45701, USA
| | - L Lee
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - S MacEwan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - D Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J A Magee
- William & Mary, Williamsburg, Virginia 23185, USA
| | - R Mahurin
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Mammei
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - J W Martin
- University of Winnipeg, Winnipeg, Manitoba R3B2E9, Canada
| | - M J McHugh
- George Washington University, Washington, DC 20052, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K E Mesick
- George Washington University, Washington, DC 20052, USA
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - A Mkrtchyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - H Mkrtchyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - A Narayan
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - L Z Ndukum
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - W T H van Oers
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - V F Owen
- William & Mary, Williamsburg, Virginia 23185, USA
| | - S A Page
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Pan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - K D Paschke
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - S K Phillips
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - M L Pitt
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | | | - J F Rajotte
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - W D Ramsay
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Seva
- University of Zagreb, Zagreb, HR 10002, Croatia
| | - M H Shabestari
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Silwal
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - N Simicevic
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Solvignon
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D T Spayde
- Hendrix College, Conway, Arkansas 72032, USA
| | - A Subedi
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Suleiman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Tadevosyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - W A Tobias
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - V Tvaskis
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- University of Winnipeg, Winnipeg, Manitoba R3B2E9, Canada
| | | | - P Wang
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - S P Wells
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - S A Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Yang
- William & Mary, Williamsburg, Virginia 23185, USA
| | - P Zang
- Syracuse University, Syracuse, New York 13244, USA
| | - S Zhamkochyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - M E Christy
- Hampton University, Hampton, Virginia 23668, USA
| | - C J Horowitz
- Indiana University, Bloomington, Indiana 47405, USA
| | - F J Fattoyev
- Indiana University, Bloomington, Indiana 47405, USA
| | - Z Lin
- Indiana University, Bloomington, Indiana 47405, USA
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Bredemeier M, Duarte A, Pinheiro M, Stadler B, Macieira JC, Ranza R, Miranda J, Valim V, Castro G, Bertolo M, Sauma MDF, Fernandes V, Medeiros A, Botelho R, Brenol C, Negrão Gonçalo Dias D, Carvalho H, Studart S, Da Rocha Castelar Pinheiro G, Rocha L, Pereira I, Ohira Gazzeta M, Maria Kakehasi A, Louzada P, Hayata ALS, Pina F, Lupo C, Balarini L, Silveira I, Kowalski S, Titton D, Chakr R, Ranzolin A, Laurindo I, Xavier R. POS0676 SURVIVAL OF THE FIRST COURSE OF BIOLOGIC OR JAK INHIBITOR IN RHEUMATOID ARTHRITIS: ASSOCIATION WITH THE CHOICE OF AGENT AND CONCOMITANT CONVENTIONAL SYNTHETIC DMARDS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:After failure of conventional synthetic disease modifying anti-rheumatic drugs (csDMARDs) in the therapy of rheumatoid arthritis (RA), treatment may be escalated to biologic (bDMARDs) or JAK inhibitors (JAKi) (1). Analysis of drug survival can provide useful information on the effectiveness of these therapeutic schemes.Objectives:to evaluate the association of the choice of therapeutic agent with the survival of treatment course in RA patients receiving their first bDMARD or JAKi.Methods:BiobadaBrasil is a multicentric registry-based cohort study of Brazilian patients starting their first bDMARD/JAKi (2). This analysis includes RA patients recruited from Jan 2009 to Oct 2019, followed-up over the first course of treatment with a bDMARD/JAKi until censoring (latest date, Nov 19, 2019) or occurrence of the outcome of interest. A treatment course is defined as a period during which the medication scheme does not change, except for dose adjustments. The primary outcome was the interruption of treatment course for any reason (except for pregnancy or disease remission); interruption of treatment due to adverse events (AEs) or death and due to inefficacy served as secondary outcomes. Multivariate Cox proportional hazards models were used for analyses.Results:In total, 1177 patients (3800 patient-years [PY]) were enrolled. The overall incidence of treatment interruption was 17.5/100 PY. Adalimumab was the most frequently prescribed agent, followed by infliximab (n= 267). The hazards ratios (HR) of the primary and secondary outcomes are presented in Table 1. Figure 1 compares the survival of treatment curves of different bDMARDs/JAKi.Table 1.Hazard ratios (HR) of interruption of therapy course of each therapeutic agent (the reference category for bDMARDs/ JAKi is infliximab). Results are HR, 95% CIs, and P values*.Agent (number of patients)Interruption for any reason (665 events)Interruption due to adverse events or death (196 events)Interruption due to inefficacy (319 events)Adalimumab (354)0.83 (0.68 to 1.01), P= 0.0620.68 (0.48 to 0.96), P=0.0291.08 (0.80 to 1.44), P=0.621Etanercept (257)0.81 (0.66 to 1.01), P=0.0630.56 (0.37 to 0.83), P=0.0040.93 (0.68 to 1.29), P=0.674Certolizumab (80)0.74 (0.47 to 1.16), P=0.1850.33 (0.13 to 0.86), P=0.0241.32 (0.74 to 2.35), P=0.350Golimumab (53)0.86 (0.53 to 1.38), P=0.5300.46 (0.18 to 1.19), P=0.1111.07 (0.53 to 2.15), P=0.849JAKi (tofacitinib) (59)0.54 (0.30 to 0.99), P=0.0470.19 (0.04 to 0.82), P=0.0260.89 (0.41 to 1.96), P=0.779Rituximab (48)0.87 (0.55 to 1.37), P=0.5400.48 (0.20 to 1.18), P=0.1090.58 (0.26 to 1.34), P=0.205Abatacept (30)0.52 (0.25 to 1.07), P=0.0770.46 (0.14 to 1.56), P=0.2150.46 (0.14 to 1.52), P=0.203Tocilizumab (29)0.29 (0.14 to 0.63), P=0.0020.40 (0.12 to 1.30), P=0.1260.28 (0.09 to 0.90), P=0.033Methotrexate (792)0.95 (0.79 to 1.14), P=0.5610.86 (0.62 to 1.19), P=0.3620.98 (0.75 to 1.28), P=0.860Leflunomide (497)1.17 (0.99 to 1.39), P=0.0611.44 (1.06 to 1.96), P=0.0201.02 (0.80 to 1.30), P=0.856Sulfasalazine (48)1.18 (0.80 to 1.75), P=0.4011.94 (1.07 to 3.54), P=0.0300.85 (0.45 to 1.59), P=0.605Antimalarials (230)0.80 (0.65 to 0.98), P=0.0270.67 (0.45 to 0.99), P=0.0430.67 (0.50 to 0.92), P=0.011* All tests adjusted for other variables presented in the table and for age, baseline DAS28, disease duration, gender, smoking, seropositivity (RF/anti-CCP), previous malignancy, diabetes, hypertension, hypercholesterolemia, renal failure, ischemic cardiomyopathy, COPD, heart failure, use of corticosteroids, starting year, hypercholesterolemia, osteoporosis, hepatitis B and C.Conclusion:In our study, infliximab was related to an overall higher hazard of treatment course interruption than tolicizumab and tofacitinib, and higher hazard of interruption due to AEs than most other anti-TNF agents and tofacitinib. Maintaining antimalarials in patients receiving advanced therapies for RA may reduce interruption of treatment due to inefficacy and AEs.Disclosure of Interests:None declared
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Kowalski S, Mikulec A, Pustkowiak H. Sensory Assessment and Physicochemical Properties of Wheat Bread Supplemented with Chia Seeds. POL J FOOD NUTR SCI 2020. [DOI: 10.31883/pjfns/129015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Androić D, Armstrong DS, Asaturyan A, Bartlett K, Beaufait J, Beminiwattha RS, Benesch J, Benmokhtar F, Birchall J, Carlini RD, Cornejo JC, Dusa SC, Dalton MM, Davis CA, Deconinck W, Dowd JF, Dunne JA, Dutta D, Duvall WS, Elaasar M, Falk WR, Finn JM, Forest T, Gal C, Gaskell D, Gericke MTW, Grames J, Gray VM, Grimm K, Guo F, Hoskins JR, Jones D, Jones MK, Jones RT, Kargiantoulakis M, King PM, Korkmaz E, Kowalski S, Leacock J, Leckey JP, Lee AR, Lee JH, Lee L, MacEwan S, Mack D, Magee JA, Mahurin R, Mammei J, Martin JW, McHugh MJ, Meekins D, Mei J, Mesick KE, Michaels R, Micherdzinska A, Mkrtchyan A, Mkrtchyan H, Morgan N, Narayan A, Ndukum LZ, Nelyubin V, van Oers WTH, Owen VF, Page SA, Pan J, Paschke KD, Phillips SK, Pitt ML, Radloff RW, Rajotte JF, Ramsay WD, Roche J, Sawatzky B, Seva T, Shabestari MH, Silwal R, Simicevic N, Smith GR, Solvignon P, Spayde DT, Subedi A, Subedi R, Suleiman R, Tadevosyan V, Tobias WA, Tvaskis V, Waidyawansa B, Wang P, Wells SP, Wood SA, Yang S, Zang P, Zhamkochyan S. Precision Measurement of the Beam-Normal Single-Spin Asymmetry in Forward-Angle Elastic Electron-Proton Scattering. Phys Rev Lett 2020; 125:112502. [PMID: 32976004 DOI: 10.1103/physrevlett.125.112502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/07/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
A beam-normal single-spin asymmetry generated in the scattering of transversely polarized electrons from unpolarized nucleons is an observable related to the imaginary part of the two-photon exchange process. We report a 2% precision measurement of the beam-normal single-spin asymmetry in elastic electron-proton scattering with a mean scattering angle of θ_{lab}=7.9° and a mean energy of 1.149 GeV. The asymmetry result is B_{n}=-5.194±0.067(stat)±0.082 (syst) ppm. This is the most precise measurement of this quantity available to date and therefore provides a stringent test of two-photon exchange models at far-forward scattering angles (θ_{lab}→0) where they should be most reliable.
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Affiliation(s)
- D Androić
- University of Zagreb, Zagreb, HR 10002, Croatia
| | | | - A Asaturyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - K Bartlett
- William & Mary, Williamsburg, Virginia 23185, USA
| | - J Beaufait
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R S Beminiwattha
- Ohio University, Athens, Ohio 45701, USA
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - J Benesch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Benmokhtar
- Duquesne University, Pittburgh, Pennsylvania 15282, USA
| | - J Birchall
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - R D Carlini
- William & Mary, Williamsburg, Virginia 23185, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Cornejo
- William & Mary, Williamsburg, Virginia 23185, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M M Dalton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - C A Davis
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - W Deconinck
- William & Mary, Williamsburg, Virginia 23185, USA
| | - J F Dowd
- William & Mary, Williamsburg, Virginia 23185, USA
| | - J A Dunne
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - W S Duvall
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 24061, USA
| | - M Elaasar
- Southern University at New Orleans, New Orleans, Louisiana 70126, USA
| | - W R Falk
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J M Finn
- William & Mary, Williamsburg, Virginia 23185, USA
| | - T Forest
- Louisiana Tech University, Ruston, Louisiana 71272, USA
- Idaho State University, Pocatello, Idaho 83209, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M T W Gericke
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Grames
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V M Gray
- William & Mary, Williamsburg, Virginia 23185, USA
| | - K Grimm
- William & Mary, Williamsburg, Virginia 23185, USA
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - F Guo
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J R Hoskins
- William & Mary, Williamsburg, Virginia 23185, USA
| | - D Jones
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R T Jones
- University of Connecticut, Storrs-Mansfield, Connecticut 06269, USA
| | | | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - E Korkmaz
- University of Northern British Columbia, Prince George, British Columbia V2N4Z9, Canada
| | - S Kowalski
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Leacock
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 24061, USA
| | - J P Leckey
- William & Mary, Williamsburg, Virginia 23185, USA
| | - A R Lee
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 24061, USA
| | - J H Lee
- William & Mary, Williamsburg, Virginia 23185, USA
- Ohio University, Athens, Ohio 45701, USA
| | - L Lee
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - S MacEwan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - D Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J A Magee
- William & Mary, Williamsburg, Virginia 23185, USA
| | - R Mahurin
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Mammei
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 24061, USA
| | - J W Martin
- University of Winnipeg, Winnipeg, Manitoba R3B2E9, Canada
| | - M J McHugh
- George Washington University, Washington, DC 20052, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K E Mesick
- George Washington University, Washington, DC 20052, USA
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 088754, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - A Mkrtchyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - H Mkrtchyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - N Morgan
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 24061, USA
| | - A Narayan
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - L Z Ndukum
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - W T H van Oers
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - V F Owen
- William & Mary, Williamsburg, Virginia 23185, USA
| | - S A Page
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Pan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - K D Paschke
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - S K Phillips
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - M L Pitt
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 24061, USA
| | | | - J F Rajotte
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - W D Ramsay
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Seva
- University of Zagreb, Zagreb, HR 10002, Croatia
| | - M H Shabestari
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Silwal
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - N Simicevic
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Solvignon
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D T Spayde
- Hendrix College, Conway, Arkansas 72032, USA
| | - A Subedi
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Subedi
- George Washington University, Washington, DC 20052, USA
| | - R Suleiman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Tadevosyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - W A Tobias
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - V Tvaskis
- University of Winnipeg, Winnipeg, Manitoba R3B2E9, Canada
| | - B Waidyawansa
- Ohio University, Athens, Ohio 45701, USA
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - P Wang
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - S P Wells
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - S A Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Yang
- William & Mary, Williamsburg, Virginia 23185, USA
| | - P Zang
- Syracuse University, Syracuse, New York 13244, USA
| | - S Zhamkochyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
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Fernández-Ávila DG, Patino-Hernandez D, Kowalski S, Vargas-Caselles A, Sapag Durán AM, Cachafeiro Vilar A, Meléndez B, Pastelín CS, Graf C, Rossetto C, Palleiro D, Trincado D, Fernández-Ávila D, Arrieta D, Reyes G, Then J, Ugarte-Gil MF, Cardiel M, Colman N, Chávez N, Burgos P, Montufar R, Sandino S, Fuentes-Silva Y, Soriano E. AB1270 RHEUMATOLOGY WORKFORCE IN LATIN AMERICA: TRAINING AND CURRENT STATUS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:The demand for rheumatology care has been steadily increasing over the last few years. However, supply seems to be insufficient, according to previous research1. This situation may be at least partly explained by less physicians beginning a rheumatology residency program2.Objectives:We aim to identify baseline data, room for change, and to strengthen functional processes associated with the rheumatology workforce in order to improve care offered to patients living with rheumatic diseases.Methods:Descriptive cross-sectional study. We obtained data on each country through local PANLAR rheumatologists. They completed an online survey using the RedCap® platform, used for capture and storage of data. The sample was described according to the type of variable.Results:19 Latin American countries were included in this study, globally 1 rheumatologist was available per 106,838 inhabitants. The highest rates were found in Uruguay (1 per 23.695 inhabitants) and Argentina (1 per 40.384 inhabitants). The lowest rates were found in Nicaragua (1 per 640.648 inhabitants) and Guatemala (1 per 559.902 inhabitants). The ratio between women and men rheumatologists was 0,99 women per each man. The lowest proportions were found in Peru (0,26:1), and the highest in the Dominican Republic (2.5:1). The average age for rheumatologists was 51,6 (SD12,75). Lowest average ages were found in Paraguay (43,1 SD10,77) and the highest age averages were found in Peru (56,23 SD12.93). The average monthly compensation was USD $2.382,6 (SD$1.462,5). Venezuela had the lowest salary ($197), the highest salary was found in Costa Rica ($4.500). The proportion of rheumatologists trained abroad was 26,7%, ranging between 0% in Uruguay and 90% in Bolivia.The countries with more rheumatology training programs were Brazil n = 50 and Mexico n = 20, while Ecuador, Honduras and Nicaragua don’t have any. The countries with the greatest amount of active residents were Brazil (n = 252) and Argentina (n = 100). The educational level required to enter the program was postgraduate studies in internal medicine in 42.11% of the programs. Currently, 108 residency programs in Latin America are active. Duration of residency programs is variable: 2 years (79.63% of cases), 3 years (16.67%), 4 years (1.85%), 5 years (0.96%) or 6 years (0.96%). The median monthly compensation for residents was $ 528 USD (IQR $ 774), the country with the highest payment was Costa Rica ($ 2637). Contrarily, in Cuba, Chile and Colombia there is no payment to residents. Finally, in 8 countries (42.11%) residents must not pay for their postgraduate studies, the average annual tuition expense in the rest of countries is $ 1248 (SD $ 2749).Conclusion:The rate of rheumatologists per inhabitant is low. The demographic characteristics and the current status of the rheumatology workforce, as well as rheumatology training in Latin-America varies widely among countries. For instance, relevant differences can be found regarding payment to rheumatologists and residents, and tuition fees. The collected information will be useful when planning regional-based strategies, as well as for future research projects in each country and within PANLAR.References:[1]Battafarano DF, Ditmyer M, Bolster MB, et al. 2015 American College of Rheumatology Workforce Study: Supply and Demand Projections of Adult Rheumatology Workforce, 2015-2030. Arthritis Care Res.2018;70(4):617-26[2]Zborovski S, Rohekar G, Rohekar S. Strategies to improve recruitment into rheumatology: results of the Workforce in Rheumatology Issues Study. J Rheumatol. 2010;37:1749-55Disclosure of Interests:Daniel G. Fernández-Ávila: None declared, Daniela Patino-Hernandez: None declared, Sergio Kowalski: None declared, Alfredo Vargas-Caselles: None declared, Ana María Sapag Durán: None declared, Antonio Cachafeiro Vilar: None declared, Belia Meléndez: None declared, Carlos Santiago Pastelín: None declared, Cesar Graf: None declared, Chayanne Rossetto: None declared, Daniel Palleiro: None declared, Daniela Trincado: None declared, Diana Fernández-Ávila: None declared, Dina Arrieta: None declared, Gil Reyes: None declared, Jossiell Then: None declared, Manuel F. Ugarte-Gil Grant/research support from: Jannsen, Pfizer, Mario Cardiel: None declared, Nelly Colman: None declared, Nilmo Chávez: None declared, Paula Burgos: None declared, Ruben Montufar: None declared, Sayonara Sandino: None declared, Yurilis Fuentes-Silva: None declared, Enrique Soriano Grant/research support from: AbbVie, Eli Lilly, GlaxoSmithKline, Novartis, Pfizer Inc, Sandoz, Consultant of: AbbVie, Eli Lilly, GlaxoSmithKline, Novartis, Pfizer Inc, Sandoz, Speakers bureau: AbbVie, Amber, Bristol-Myers Squibb, Eli Lilly, Novartis, Pfizer Inc, Roche
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16
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Larin I, Zhang Y, Gasparian A, Gan L, Miskimen R, Khandaker M, Dale D, Danagoulian S, Pasyuk E, Gao H, Ahmidouch A, Ambrozewicz P, Baturin V, Burkert V, Clinton E, Deur A, Dolgolenko A, Dutta D, Fedotov G, Feng J, Gevorkyan S, Glamazdin A, Guo L, Isupov E, Ito MM, Klein F, Kowalski S, Kubarovsky A, Kubarovsky V, Lawrence D, Lu H, Ma L, Matveev V, Morrison B, Micherdzinska A, Nakagawa I, Park K, Pedroni R, Phelps W, Protopopescu D, Rimal D, Romanov D, Salgado C, Shahinyan A, Sober D, Stepanyan S, Tarasov VV, Taylor S, Vasiliev A, Wood M, Ye L, Zihlmann B. Precision measurement of the neutral pion lifetime. Science 2020; 368:506-509. [PMID: 32355026 DOI: 10.1126/science.aay6641] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 03/30/2020] [Indexed: 11/02/2022]
Abstract
The explicit breaking of the axial symmetry by quantum fluctuations gives rise to the so-called axial anomaly. This phenomenon is solely responsible for the decay of the neutral pion π0 into two photons (γγ), leading to its unusually short lifetime. We precisely measured the decay width Γ of the [Formula: see text] process. The differential cross sections for π0 photoproduction at forward angles were measured on two targets, carbon-12 and silicon-28, yielding [Formula: see text], where stat. denotes the statistical uncertainty and syst. the systematic uncertainty. We combined the results of this and an earlier experiment to generate a weighted average of [Formula: see text] Our final result has a total uncertainty of 1.50% and confirms the prediction based on the chiral anomaly in quantum chromodynamics.
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Affiliation(s)
- I Larin
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Center (NRC) "Kurchatov Institute," Moscow, 117218, Russia.,Department of Physics, University of Massachusetts, Amherst, MA 01003, USA
| | - Y Zhang
- Department of Physics, Duke University, Durham, NC 27708, USA.,Triangle Universities Nuclear Laboratory, Durham, NC 27708, USA
| | - A Gasparian
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - L Gan
- Department of Physics and Physical Oceanography, University of North Carolina Wilmington, Wilmington, NC 28403, USA
| | - R Miskimen
- Department of Physics, University of Massachusetts, Amherst, MA 01003, USA
| | - M Khandaker
- Department of Physics, Norfolk State University, Norfolk, VA 23504, USA
| | - D Dale
- Department of Physics and Nuclear Engineering, Idaho State University, Pocatello, ID 83209, USA
| | - S Danagoulian
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - H Gao
- Department of Physics, Duke University, Durham, NC 27708, USA.,Triangle Universities Nuclear Laboratory, Durham, NC 27708, USA
| | - A Ahmidouch
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - P Ambrozewicz
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - V Baturin
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - V Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - E Clinton
- Department of Physics, University of Massachusetts, Amherst, MA 01003, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - A Dolgolenko
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Center (NRC) "Kurchatov Institute," Moscow, 117218, Russia
| | - D Dutta
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, MS 39762, USA
| | - G Fedotov
- Department of Physics, Moscow State University, Moscow 119991, Russia.,B. P. Konstantinov Petersburg Nuclear Physics Institute, NRC "Kurchatov Institute," Gatchina, St. Petersburg, 188300, Russia
| | - J Feng
- Department of Physics and Physical Oceanography, University of North Carolina Wilmington, Wilmington, NC 28403, USA
| | - S Gevorkyan
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
| | - A Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov, 310108, Ukraine
| | - L Guo
- Department of Physics, Florida International University, Miami, FL 33199, USA
| | - E Isupov
- Department of Physics, Moscow State University, Moscow 119991, Russia
| | - M M Ito
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - F Klein
- Department of Physics, The Catholic University of America, Washington, DC 20064, USA
| | - S Kowalski
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - A Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - D Lawrence
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - H Lu
- Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - L Ma
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - V Matveev
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Center (NRC) "Kurchatov Institute," Moscow, 117218, Russia
| | - B Morrison
- Department of Physics, Arizona State University, Tempe, AZ 85281, USA
| | - A Micherdzinska
- Department of Physics, George Washington University, Washington, DC 20064, USA
| | - I Nakagawa
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - K Park
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - R Pedroni
- Department of Physics, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - W Phelps
- Department of Physics, Computer Science and Engineering, Christopher Newport University, Newport News, VA 23606, USA
| | - D Protopopescu
- School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
| | - D Rimal
- Department of Physics, Florida International University, Miami, FL 33199, USA
| | - D Romanov
- Department of Physics, Moscow Engineering Physics Institute, Moscow, Russia
| | - C Salgado
- Department of Physics, Norfolk State University, Norfolk, VA 23504, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 0036, Armenia
| | - D Sober
- Department of Physics, The Catholic University of America, Washington, DC 20064, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - V V Tarasov
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Center (NRC) "Kurchatov Institute," Moscow, 117218, Russia
| | - S Taylor
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
| | - A Vasiliev
- Institute for High Energy Physics, NRC "Kurchatov Institute," Protvino, 142281, Russia
| | - M Wood
- Department of Physics, University of Massachusetts, Amherst, MA 01003, USA
| | - L Ye
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, MS 39762, USA
| | - B Zihlmann
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
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17
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Gou B, Arvieux J, Aulenbacher K, Ríos DB, Baunack S, Becker D, Capozza L, Deconinck W, Diefenbach J, Frascaria R, Gorchtein M, Gläser B, von Harrach D, Imai Y, Kabuß EM, Kothe R, Kowalski S, Kunne R, Maas FE, Merkel H, Espí MCM, Morlet M, Müller U, Ong S, Schilling E, Weinrich C, van de Wiele J, Zambrana M, Zimmermann I. Study of Two-Photon Exchange via the Beam Transverse Single Spin Asymmetry in Electron-Proton Elastic Scattering at Forward Angles over a Wide Energy Range. Phys Rev Lett 2020; 124:122003. [PMID: 32281834 DOI: 10.1103/physrevlett.124.122003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 02/28/2020] [Accepted: 02/28/2020] [Indexed: 06/11/2023]
Abstract
We report on a new measurement of the beam transverse single spin asymmetry in electron-proton elastic scattering, A_{⊥}^{ep}, at five beam energies from 315.1 to 1508.4 MeV and at a scattering angle of 30°<θ<40°. The covered Q^{2} values are 0.032, 0.057, 0.082, 0.218, 0.613 (GeV/c)^{2}. The measurement clearly indicates significant inelastic contributions to the two-photon-exchange (TPE) amplitude in the low-Q^{2} kinematic region. No theoretical calculation is able to reproduce our result. Comparison with a calculation based on unitarity, which only takes into account elastic and πN inelastic intermediate states, suggests that there are other inelastic intermediate states such as ππN, KΛ, and ηN. Covering a wide energy range, our new high-precision data provide a benchmark to study those intermediate states.
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Affiliation(s)
- B Gou
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, Staudingerweg 18, D-55099 Mainz, Germany
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J Arvieux
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - K Aulenbacher
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, Staudingerweg 18, D-55099 Mainz, Germany
| | - D Balaguer Ríos
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - S Baunack
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - D Becker
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - L Capozza
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, Staudingerweg 18, D-55099 Mainz, Germany
| | - W Deconinck
- Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Diefenbach
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - R Frascaria
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - M Gorchtein
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - B Gläser
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - D von Harrach
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - Y Imai
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - E-M Kabuß
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - R Kothe
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - S Kowalski
- Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Kunne
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - F E Maas
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, Staudingerweg 18, D-55099 Mainz, Germany
| | - H Merkel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - M C Mora Espí
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - M Morlet
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - U Müller
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - S Ong
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - E Schilling
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - C Weinrich
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - J van de Wiele
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - M Zambrana
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, Staudingerweg 18, D-55099 Mainz, Germany
| | - I Zimmermann
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, Staudingerweg 18, D-55099 Mainz, Germany
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Mikulec A, Kowalski S, Makarewicz M, Skoczylas Ł, Tabaszewska M. Cistus extract as a valuable component for enriching wheat bread. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108713] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Xiong W, Gasparian A, Gao H, Dutta D, Khandaker M, Liyanage N, Pasyuk E, Peng C, Bai X, Ye L, Gnanvo K, Gu C, Levillain M, Yan X, Higinbotham DW, Meziane M, Ye Z, Adhikari K, Aljawrneh B, Bhatt H, Bhetuwal D, Brock J, Burkert V, Carlin C, Deur A, Di D, Dunne J, Ekanayaka P, El-Fassi L, Emmich B, Gan L, Glamazdin O, Kabir ML, Karki A, Keith C, Kowalski S, Lagerquist V, Larin I, Liu T, Liyanage A, Maxwell J, Meekins D, Nazeer SJ, Nelyubin V, Nguyen H, Pedroni R, Perdrisat C, Pierce J, Punjabi V, Shabestari M, Shahinyan A, Silwal R, Stepanyan S, Subedi A, Tarasov VV, Ton N, Zhang Y, Zhao ZW. A small proton charge radius from an electron-proton scattering experiment. Nature 2019; 575:147-150. [PMID: 31695211 DOI: 10.1038/s41586-019-1721-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/19/2019] [Indexed: 11/09/2022]
Abstract
Elastic electron-proton scattering (e-p) and the spectroscopy of hydrogen atoms are the two methods traditionally used to determine the proton charge radius, rp. In 2010, a new method using muonic hydrogen atoms1 found a substantial discrepancy compared with previous results2, which became known as the 'proton radius puzzle'. Despite experimental and theoretical efforts, the puzzle remains unresolved. In fact, there is a discrepancy between the two most recent spectroscopic measurements conducted on ordinary hydrogen3,4. Here we report on the proton charge radius experiment at Jefferson Laboratory (PRad), a high-precision e-p experiment that was established after the discrepancy was identified. We used a magnetic-spectrometer-free method along with a windowless hydrogen gas target, which overcame several limitations of previous e-p experiments and enabled measurements at very small forward-scattering angles. Our result, rp = 0.831 ± 0.007stat ± 0.012syst femtometres, is smaller than the most recent high-precision e-p measurement5 and 2.7 standard deviations smaller than the average of all e-p experimental results6. The smaller rp we have now measured supports the value found by two previous muonic hydrogen experiments1,7. In addition, our finding agrees with the revised value (announced in 2019) for the Rydberg constant8-one of the most accurately evaluated fundamental constants in physics.
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Affiliation(s)
- W Xiong
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - A Gasparian
- North Carolina A&T State University, Greensboro, NC, USA.
| | - H Gao
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - D Dutta
- Mississippi State University, Mississippi State, MS, USA.
| | | | - N Liyanage
- University of Virginia, Charlottesville, VA, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - C Peng
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - X Bai
- University of Virginia, Charlottesville, VA, USA
| | - L Ye
- Mississippi State University, Mississippi State, MS, USA
| | - K Gnanvo
- University of Virginia, Charlottesville, VA, USA
| | - C Gu
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - M Levillain
- North Carolina A&T State University, Greensboro, NC, USA
| | - X Yan
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - M Meziane
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - Z Ye
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA.,Argonne National Laboratory, Lemont, IL, USA
| | - K Adhikari
- Mississippi State University, Mississippi State, MS, USA
| | - B Aljawrneh
- North Carolina A&T State University, Greensboro, NC, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, MS, USA
| | - D Bhetuwal
- Mississippi State University, Mississippi State, MS, USA
| | - J Brock
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - V Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - C Carlin
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - D Di
- University of Virginia, Charlottesville, VA, USA
| | - J Dunne
- Mississippi State University, Mississippi State, MS, USA
| | - P Ekanayaka
- Mississippi State University, Mississippi State, MS, USA
| | - L El-Fassi
- Mississippi State University, Mississippi State, MS, USA
| | - B Emmich
- Mississippi State University, Mississippi State, MS, USA
| | - L Gan
- University of North Carolina, Wilmington, NC, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov, Ukraine
| | - M L Kabir
- Mississippi State University, Mississippi State, MS, USA
| | - A Karki
- Mississippi State University, Mississippi State, MS, USA
| | - C Keith
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - S Kowalski
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | - I Larin
- Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute", Moscow, Russia.,University of Massachusetts, Amherst, MA, USA
| | - T Liu
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | | | - J Maxwell
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | | | - V Nelyubin
- University of Virginia, Charlottesville, VA, USA
| | - H Nguyen
- University of Virginia, Charlottesville, VA, USA
| | - R Pedroni
- North Carolina A&T State University, Greensboro, NC, USA
| | - C Perdrisat
- College of William and Mary, Williamsburg, VA, USA
| | - J Pierce
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - V Punjabi
- Norfolk State University, Norfolk, VA, USA
| | - M Shabestari
- Mississippi State University, Mississippi State, MS, USA
| | | | - R Silwal
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - A Subedi
- Mississippi State University, Mississippi State, MS, USA
| | - V V Tarasov
- Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute", Moscow, Russia
| | - N Ton
- University of Virginia, Charlottesville, VA, USA
| | - Y Zhang
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
| | - Z W Zhao
- Duke University and Triangle Universities Nuclear Laboratory, Durham, NC, USA
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20
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Zucker MB, Soberano ME, Johnson AJ, Fulton AJ, Kowalski S, Adler M. The In Vitro Association of Antihemophilic Factor and von Willebrand Factor. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1657311] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryConsiderable evidence, including results of gel chromatography, indicates that antihemophilic factor (AHF; factor VIII: C) is associated with von Willebrand factor (vWF; factor VIIIR: RC or VTIIR: Ag) in citrated plasma. The present study was undertaken to determine whether these factors are also associated in plasma with a physiologic calcium ion concentration, or in an artificial medium using purified antihemophilic factor and plasma as a source of vWF. When fresh BaS04-treated native normal plasma was passed through a column of Sepharose CL-4B that was equilibrated and eluted with fresh BaS04-treated plasma from a patient with severe von Willebrand’s disease, the AHF and vWF activities were found in the void volume. Thus, AHF remains associated with vWF on gel chromatography in the presence of physiological concentrations of all plasma constituents except the vitamin-K-dependent clotting factors. On the other hand, when to 200,000 X purified “vWF-free” AHF was chromatographed in buffered 4% albumin with 2 mM CaCl2, virtually all of it appeared in the included volume of the column with an apparent molecular weight between that of fibrinogen or factor V (340,000) and gamma globulin (160,000). The combination of the “vWF-free” AHF with the vWF in plasma was studied by adding the AHF to BaS04-treated plasma from normal subjects or patients with severe hemophilia or von Willebrand’s disease and chromatographing the mixture. The AHF activity appeared in the void volume in an amount that was inversely related to the ratio of the AHF to vWF activity. Thus, with 1-12 U of AHF per unit of vWF, virtually all of the AHF eluted in the void volume, with 30 and 500 units of AHF per unit of vWF, only about 50% and 10% of the AHF, respectively, eluted in the void volume, and in the absence of vWF, none of the AHF activity eluted in the void volume.
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Affiliation(s)
- M B Zucker
- The Departments of Pathology and Medicine, New York University Medical Center, New York, N.Y
| | - M E Soberano
- The Departments of Pathology and Medicine, New York University Medical Center, New York, N.Y
| | - A J Johnson
- The Departments of Pathology and Medicine, New York University Medical Center, New York, N.Y
| | - A J Fulton
- The Departments of Pathology and Medicine, New York University Medical Center, New York, N.Y
| | - S Kowalski
- The Departments of Pathology and Medicine, New York University Medical Center, New York, N.Y
| | - M Adler
- The Departments of Pathology and Medicine, New York University Medical Center, New York, N.Y
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21
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Muller Moran H, Maguire D, Maguire D, Kowalski S, Jacobsohn E, Mackenzie G, Grocott H, Arora R. EFFECT OF EARLIER EXTUBATION ON POST-OPERATIVE DELIRIUM AFTER CORONARY ARTERY BYPASS GRAFTING. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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22
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Kowalski S, Kopuncová M, Ciesarová Z, Kukurová K. Free amino acids profile of Polish and Slovak honeys based on LC-MS/MS method without the prior derivatisation. J Food Sci Technol 2017; 54:3716-3723. [PMID: 29051667 DOI: 10.1007/s13197-017-2838-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/03/2017] [Accepted: 08/23/2017] [Indexed: 10/18/2022]
Abstract
LC-MS/MS method was applied for determination of free amino acids in honey without derivatisation steps. Twenty free amino acids including aspartic acid, asparagine, glutamic acid, glutamine, alanine, arginine, glycine, leucine, histidine, hydroxyproline, isoleucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, valine and ornithine were analyzed in thirty honey samples from Poland and Slovakia. The analysis covered: acacia, lime, rape, multifloral and forest types of honey. Applied method was characterized to had good sensitivity with limit of detection ranged from 3.0 ng/cm3 for valine to 13.0 ng/cm3 for hydroxyproline. Average content of proline (main amino acid component in honey) ranged from 151.46 μg/g (rape honey from Slovakia) to 389.66 μg/g for forest honey (honeydew honey) from Poland. In analyzed honeys large quantities of glutamine, glutamic acid, lysine, phenylalanine, asparagine, alanine, and valine were also found.
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Affiliation(s)
- Stanisław Kowalski
- Department of Carbohydrates Technology, Faculty of Food Technology, University of Agriculture in Krakow, ul. Balicka 122, 30-149 Kraków, Poland
| | - Mária Kopuncová
- National Agricultural and Food Centre, Food Research Institute, Priemyselná 4, 82475 Bratislava, Slovak Republic.,Institute of Chemistry, Faculty of Natural Science, Comenius University, Ilkovičova 6, 84215 Bratislava, Slovak Republic
| | - Zuzana Ciesarová
- National Agricultural and Food Centre, Food Research Institute, Priemyselná 4, 82475 Bratislava, Slovak Republic
| | - Kristína Kukurová
- National Agricultural and Food Centre, Food Research Institute, Priemyselná 4, 82475 Bratislava, Slovak Republic
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23
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Ríos DB, Aulenbacher K, Baunack S, Diefenbach J, Gläser B, von Harrach D, Imai Y, Kabuß EM, Kothe R, Lee JH, Merkel H, Mora Espí MC, Müller U, Schilling E, Weinrich C, Capozza L, Maas FE, Arvieux J, El-Yakoubi MA, Frascaria R, Kunne R, Morlet M, Ong S, van de Wiele J, Kowalski S, Prok Y. New Measurements of the Beam Normal Spin Asymmetries at Large Backward Angles with Hydrogen and Deuterium Targets. Phys Rev Lett 2017; 119:012501. [PMID: 28731753 DOI: 10.1103/physrevlett.119.012501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Indexed: 06/07/2023]
Abstract
New measurements of the beam normal single spin asymmetry in the electron elastic and quasielastic scattering on the proton and deuteron, respectively, at large backward angles and at ⟨Q^{2}⟩=0.22 (GeV/c)^{2} and ⟨Q^{2}⟩=0.35 ( GeV/c)^{2} are reported. The experimentally observed asymmetries are compared with the theoretical calculation of Pasquini and Vanderhaeghen [Phys. Rev. C 70, 045206 (2004).PRVCAN0556-281310.1103/PhysRevC.70.045206]. The agreement of the measurements with the theoretical calculations shows a dominance of the inelastic intermediate excited states of the nucleon, πN and the Δ resonance. The measurements explore a new, important parameter region of the exchanged virtual photon virtualities.
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Affiliation(s)
- D Balaguer Ríos
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - K Aulenbacher
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - S Baunack
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - J Diefenbach
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - B Gläser
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - D von Harrach
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - Y Imai
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - E-M Kabuß
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - R Kothe
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - J H Lee
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - H Merkel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - M C Mora Espí
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - U Müller
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - E Schilling
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - C Weinrich
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
| | - L Capozza
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 36, D-55099 Mainz, Germany
| | - F E Maas
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 45, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, J.J. Becherweg 36, D-55099 Mainz, Germany
| | - J Arvieux
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - M A El-Yakoubi
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - R Frascaria
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - R Kunne
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - M Morlet
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - S Ong
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - J van de Wiele
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, F-91406 Orsay Cedex, France
| | - S Kowalski
- Laboratory for Nuclear Science and Department of Physics, MIT, Cambridge, Massachusetts 02139, USA
| | - Y Prok
- Laboratory for Nuclear Science and Department of Physics, MIT, Cambridge, Massachusetts 02139, USA
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Androic D, Armstrong D, Asaturyan A, Averett T, Balewski J, Bartlett K, Beaufait J, Beminiwattha R, Benesch J, Benmokhtar F, Birchall J, Carlini R, Cates G, Cornejo J, Covrig S, Dalton M, Davis C, Deconinck W, Diefenbach J, Dowd J, Dunne J, Dutta D, Duvall W, Elaasar M, Falk W, Finn J, Forest T, Gal C, Gaskell D, Gericke M, Grames J, Gray V, Grimm K, Guo F, Hoskins J, Johnston K, Jones D, Jones M, Jones R, Kargiantoulakis M, King P, Korkmaz E, Kowalski S, Leacock J, Leckey J, Lee A, Lee J, Lee L, MacEwan S, Mack D, Magee J, Mahurin R, Mammei J, Martin J, McHugh M, Meekins D, Mei J, Michaels R, Micherdzinska A, Mkrtchyan A, Mkrtchyan H, Morgan N, Myers K, Narayan A, Ndukum L, Nelyubin V, Nuhait H, Nuruzzaman, van Oers W, Opper A, Page S, Pan J, Paschke K, Phillips S, Pitt M, Poelker M, Rajotte J, Ramsay W, Roche J, Sawatzky B, Seva T, Shabestari M, Silwal R, Simicevic N, Smith G, Solvignon P, Spayde D, Subedi A, Subedi R, Suleiman R, Tadevosyan V, Tobias W, Tvaskis V, Waidyawansa B, Wang P, Wells S, Wood S, Yang S, Young R, Zang P, Zhamkochyan S. Qweak: First Direct Measurement of the Proton’s Weak Charge. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201713708005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- S. Kowalski
- Department of Carbohydrates Technology, Faculty of Food Technology, University of Agriculture in Krakow, Krakow, Poland
| | - M. Makarewicz
- Department of Fermentation Technology and Technical Microbiology, Faculty of Food Technology, University of Agriculture in Krakow
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Balaguer Ríos D, Aulenbacher K, Baunack S, Diefenbach J, Gläser B, von Harrach D, Imai Y, Kabuß EM, Kothe R, Lee J, Merkel H, Mora Espí M, Müller U, Schilling E, Weinrich C, Capozza L, Maas F, Arvieux J, El-Yakoubi M, Frascaria R, Kunne R, Ong S, van de Wiele J, Kowalski S, Prok Y. Measurement of the parity violating asymmetry in the quasielastic electron-deuteron scattering and improved determination of the magnetic strange form factor and the isovector anapole radiative correction. Int J Clin Exp Med 2016. [DOI: 10.1103/physrevd.94.051101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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27
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Kowalski S, Lukasiewicz M. Diastase and Invertase Activity Changes and 5-Hydroxymethyl-2-Furfural Formation in Honeys Under Influence of Microwave Irradiation. J FOOD PROCESS ENG 2016. [DOI: 10.1111/jfpe.12410] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stanisław Kowalski
- Department of Carbohydrate Technology, Faculty of Food Technology; University of Agriculture in Krakow; ul. Balicka 122 30-149 Krakow Poland
| | - Marcin Lukasiewicz
- Department of Carbohydrate Technology, Faculty of Food Technology; University of Agriculture in Krakow; ul. Balicka 122 30-149 Krakow Poland
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Wieloch A, Adamczyk M, Barbui M, Blando N, Giuliani G, Hagel K, Kim EJ, Kowalski S, Majka Z, Natowitz J, Pelczar K, Płaneta R, Schmidt K, Sosin Z, Wuenschel S, Zelga K, Zheng H. A novel approach to the island of stability of super-heavy elements search. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611701003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Schmidt K, Natowitz J, Barbui M, Hagel K, Bonasera A, Giuliani G, Zheng H, Rodrigues M, Wada R, Huang M, Botosso C, Kowalski S. Properties of excited A = 40 nuclear systems with varying matter composition. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611707021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kutyła-Kupidura EM, Sikora M, Krystyjan M, Dobosz A, Kowalski S, Pysz M, Tomasik P. Properties of Sugar-Free Cookies with Xylitol, Sucralose, Acesulfame K and Their Blends. J FOOD PROCESS ENG 2015. [DOI: 10.1111/jfpe.12222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Edyta Maja Kutyła-Kupidura
- Department of Carbohydrates Technology; University of Agriculture in Krakow; Balicka 122 Krakow 30-149 Poland
| | - Marek Sikora
- Department of Carbohydrates Technology; University of Agriculture in Krakow; Balicka 122 Krakow 30-149 Poland
| | - Magdalena Krystyjan
- Department of Carbohydrates Technology; University of Agriculture in Krakow; Balicka 122 Krakow 30-149 Poland
| | - Anna Dobosz
- Department of Carbohydrates Technology; University of Agriculture in Krakow; Balicka 122 Krakow 30-149 Poland
| | - Stanisław Kowalski
- Department of Carbohydrates Technology; University of Agriculture in Krakow; Balicka 122 Krakow 30-149 Poland
| | - Mirosław Pysz
- Department of Human Nutrition; University of Agriculture in Krakow; Balicka 122 Krakow 30-149 Poland
| | - Piotr Tomasik
- Cracow College of Health Promotion; Krowoderska Street 73 Krakow 31-158 Poland
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Schmidt K, Kim EJ, Wuenschel S, Barbui M, Natowitz JB, Hagel K, Wada R, Bottosso C, Giuliani G, Qin L, Kohley Z, Bonasera A, Chen Z, Huang M, Wang J, Zheng H, Kowalski S, Rodrigues MRD, Fabris D, Moretto S, Pesente S, Viesti G, Cinausero M, Prete G, Nebbia G, Keutgen T, El Masri Y, Majka Z, Ma YG. Clustering in alpha conjugate nuclei. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158800024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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33
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Grzeszczuk A, Kowalski S. Advanced mathematical on-line analysis in nuclear experiments. Usage of parallel computing CUDA routines in standard root analysis. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158801007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Domański S, Kowalski S, Kowalski T. Fungi occurring in forests injured by air pollutants in the Upper Silesia and Cracov industrial Regions. V. Fungi inhabiting the overground portions of trees used in the regeneration of stands converted in 1971-1975. Acta Mycol 2014. [DOI: 10.5586/am.1977.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Results of investigations on fungi infecting both the leaves, needles or shoots, and the branches or trunks of 6-15-year-old tree species in forest stands rebuilt within two industrial regions in Poland are given in this paper.
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Androic D, Armstrong D, Asaturyan A, Averett T, Balewski J, Beaufait J, Beminiwattha R, Benesch J, Benmokhtar F, Birchall J, Carlini R, Cates G, Cornejo J, Covrig S, Dalton M, Davis C, Deconinck W, Diefenbach J, Dowd J, Dunne J, Dutta D, Duvall W, Elaasar M, Falk W, Finn J, Forest T, Gaskell D, Gericke M, Grames J, Gray V, Grimm K, Guo F, Hoskins J, Johnston K, Jones D, Jones M, Jones R, Kargiantoulakis M, King P, Korkmaz E, Kowalski S, Leacock J, Leckey J, Lee A, Lee J, Lee L, MacEwan S, Mack D, Magee J, Mahurin R, Mammei J, Martin J, McHugh M, Meekins D, Mei J, Michaels R, Micherdzinska A, Mkrtchyan A, Mkrtchyan H, Morgan N, Myers K, Narayan A, Ndukum L, Nelyubin V, Nuruzzaman, van Oers W, Opper A, Page S, Pan J, Paschke K, Phillips S, Pitt M, Poelker M, Rajotte J, Ramsay W, Roche J, Sawatzky B, Seva T, Shabestari M, Silwal R, Simicevic N, Smith G, Solvignon P, Spayde D, Subedi A, Subedi R, Suleiman R, Tadevosyan V, Tobias W, Tvaskis V, Waidyawansa B, Wang P, Wells S, Wood S, Yang S, Young R, Zhamkochyan S. Early Results from the QweakExperiment. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146605002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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36
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Kowalski S, Allard S, Zilberberg K, Riedl T, Scherf U. Direct arylation polycondensation as simplified alternative for the synthesis of conjugated (co)polymers. Prog Polym Sci 2013. [DOI: 10.1016/j.progpolymsci.2013.04.006] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Androic D, Armstrong DS, Asaturyan A, Averett T, Balewski J, Beaufait J, Beminiwattha RS, Benesch J, Benmokhtar F, Birchall J, Carlini RD, Cates GD, Cornejo JC, Covrig S, Dalton MM, Davis CA, Deconinck W, Diefenbach J, Dowd JF, Dunne JA, Dutta D, Duvall WS, Elaasar M, Falk WR, Finn JM, Forest T, Gaskell D, Gericke MTW, Grames J, Gray VM, Grimm K, Guo F, Hoskins JR, Johnston K, Jones D, Jones M, Jones R, Kargiantoulakis M, King PM, Korkmaz E, Kowalski S, Leacock J, Leckey J, Lee AR, Lee JH, Lee L, MacEwan S, Mack D, Magee JA, Mahurin R, Mammei J, Martin JW, McHugh MJ, Meekins D, Mei J, Michaels R, Micherdzinska A, Mkrtchyan A, Mkrtchyan H, Morgan N, Myers KE, Narayan A, Ndukum LZ, Nelyubin V, van Oers WTH, Opper AK, Page SA, Pan J, Paschke KD, Phillips SK, Pitt ML, Poelker M, Rajotte JF, Ramsay WD, Roche J, Sawatzky B, Seva T, Shabestari MH, Silwal R, Simicevic N, Smith GR, Solvignon P, Spayde DT, Subedi A, Subedi R, Suleiman R, Tadevosyan V, Tobias WA, Tvaskis V, Waidyawansa B, Wang P, Wells SP, Wood SA, Yang S, Young RD, Zhamkochyan S. First determination of the weak charge of the proton. Phys Rev Lett 2013; 111:141803. [PMID: 24152148 DOI: 10.1103/physrevlett.111.141803] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Indexed: 06/02/2023]
Abstract
The Q(weak) experiment has measured the parity-violating asymmetry in ep elastic scattering at Q(2)=0.025(GeV/c)(2), employing 145 μA of 89% longitudinally polarized electrons on a 34.4 cm long liquid hydrogen target at Jefferson Lab. The results of the experiment's commissioning run, constituting approximately 4% of the data collected in the experiment, are reported here. From these initial results, the measured asymmetry is A(ep)=-279±35 (stat) ± 31 (syst) ppb, which is the smallest and most precise asymmetry ever measured in ep scattering. The small Q(2) of this experiment has made possible the first determination of the weak charge of the proton Q(W)(p) by incorporating earlier parity-violating electron scattering (PVES) data at higher Q(2) to constrain hadronic corrections. The value of Q(W)(p) obtained in this way is Q(W)(p)(PVES)=0.064±0.012, which is in good agreement with the standard model prediction of Q(W)(p)(SM)=0.0710±0.0007. When this result is further combined with the Cs atomic parity violation (APV) measurement, significant constraints on the weak charges of the up and down quarks can also be extracted. That PVES+APV analysis reveals the neutron's weak charge to be Q(W)(n)(PVES+APV)=-0.975±0.010.
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Affiliation(s)
- D Androic
- University of Zagreb, Zagreb HR-10002, Croatia
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Wang D, Pan K, Subedi R, Deng X, Ahmed Z, Allada K, Aniol KA, Armstrong DS, Arrington J, Bellini V, Beminiwattha R, Benesch J, Benmokhtar F, Camsonne A, Canan M, Cates GD, Chen JP, Chudakov E, Cisbani E, Dalton MM, de Jager CW, De Leo R, Deconinck W, Deur A, Dutta C, El Fassi L, Flay D, Franklin GB, Friend M, Frullani S, Garibaldi F, Giusa A, Glamazdin A, Golge S, Grimm K, Hafidi K, Hansen O, Higinbotham DW, Holmes R, Holmstrom T, Holt RJ, Huang J, Hyde CE, Jen CM, Jones D, Kang H, King P, Kowalski S, Kumar KS, Lee JH, LeRose JJ, Liyanage N, Long E, McNulty D, Margaziotis DJ, Meddi F, Meekins DG, Mercado L, Meziani ZE, Michaels R, Mihovilovic M, Muangma N, Myers KE, Nanda S, Narayan A, Nelyubin V, Oh Y, Parno D, Paschke KD, Phillips SK, Qian X, Qiang Y, Quinn B, Rakhman A, Reimer PE, Rider K, Riordan S, Roche J, Rubin J, Russo G, Saenboonruang K, Saha A, Sawatzky B, Shahinyan A, Silwal R, Sirca S, Souder PA, Suleiman R, Sulkosky V, Sutera CM, Tobias WA, Urciuoli GM, Waidyawansa B, Wojtsekhowski B, Ye L, Zhao B, Zheng X. Measurements of parity-violating asymmetries in electron-deuteron scattering in the nucleon resonance region. Phys Rev Lett 2013; 111:082501. [PMID: 24016222 DOI: 10.1103/physrevlett.111.082501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Indexed: 06/02/2023]
Abstract
We report on parity-violating asymmetries in the nucleon resonance region measured using inclusive inelastic scattering of 5-6 GeV longitudinally polarized electrons off an unpolarized deuterium target. These results are the first parity-violating asymmetry data in the resonance region beyond the Δ(1232). They provide a verification of quark-hadron duality-the equivalence of the quark- and hadron-based pictures of the nucleon-at the (10-15)% level in this electroweak observable, which is dominated by contributions from the nucleon electroweak γZ interference structure functions. In addition, the results provide constraints on nucleon resonance models relevant for calculating background corrections to elastic parity-violating electron scattering measurements.
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Affiliation(s)
- D Wang
- University of Virginia, Charlottesville, Virginia 22904, USA
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Kowalski S, Lukasiewicz M, Berski W. Applicability of physico-chemical parameters of honey for identification of the botanical origin. Acta Sci Pol Technol Aliment 2013; 12:51-59. [PMID: 24584865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Efforts are being made to apply physicochemical parameters analysis in the identification of varietal honeys. With many variables describing a given population, it is feasible to differentiate between basing on principal component analysis (PCA). The aim of this study was to investigate selected physicochemical quality characteristics of nectar honey, with particular emphasis paid to carbohydrate composition, and to determine its applicability in identifying the variety of floral honey. MATERIAL AND METHODS The experimental materials were samples of commercial honey available at retail in Krakow in 2005-2007 period. The following analyses were performed: water content by the refractometric method, sugars content according to Luff-Schoorl, content of sugars using HPLC, electrical conductivity, specific rotation, and acidity of honey. RESULTS Application of HPLC allowed the precise qualitative identification of sugars, which was impossible to be determined by Luff-Schoorl method. The obtained results were analysed using principal component analysis (PCA). CONCLUSIONS Based on the obtained results and performing the statistical analysis, it was found that the relationship between specific rotation and the total acidity can be used to distinguish buckwheat honeys from other analysed varieties. Moreover, it was demonstrated that the relationship between the specific rotation and maltose content can be used to distinguish between acacia honeys vs. buckwheat and lime honeys.
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Affiliation(s)
- Stanisław Kowalski
- Carbohydrate Technology Department, University of Agriculture in Krakow, Poland
| | - Marcin Lukasiewicz
- Carbohydrate Technology Department, University of Agriculture in Krakow, Poland
| | - Wiktor Berski
- Carbohydrate Technology Department, University of Agriculture in Krakow, Poland
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41
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Qin L, Hagel K, Wada R, Natowitz JB, Shlomo S, Bonasera A, Röpke G, Typel S, Chen Z, Huang M, Wang J, Zheng H, Kowalski S, Barbui M, Rodrigues MRD, Schmidt K, Fabris D, Lunardon M, Moretto S, Nebbia G, Pesente S, Rizzi V, Viesti G, Cinausero M, Prete G, Keutgen T, El Masri Y, Majka Z, Ma YG. Laboratory tests of low density astrophysical nuclear equations of state. Phys Rev Lett 2012; 108:172701. [PMID: 22680857 DOI: 10.1103/physrevlett.108.172701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2011] [Indexed: 06/01/2023]
Abstract
Clustering in low density nuclear matter has been investigated using the NIMROD multidetector at Texas A&M University. Thermal coalescence modes were employed to extract densities, ρ, and temperatures, T, for evolving systems formed in collisions of 47A MeV (40)Ar+(112)Sn, (124)Sn and (64)Zn+(112)Sn, (124)Sn. The yields of d, t, (3)He, and (4)He have been determined at ρ=0.002 to 0.03 nucleons/fm(3) and T=5 to 11 MeV. The experimentally derived equilibrium constants for α particle production are compared with those predicted by a number of astrophysical equations of state. The data provide important new constraints on the model calculations.
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Affiliation(s)
- L Qin
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
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42
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Abrahamyan S, Ahmed Z, Albataineh H, Aniol K, Armstrong DS, Armstrong W, Averett T, Babineau B, Barbieri A, Bellini V, Beminiwattha R, Benesch J, Benmokhtar F, Bielarski T, Boeglin W, Camsonne A, Canan M, Carter P, Cates GD, Chen C, Chen JP, Hen O, Cusanno F, Dalton MM, De Leo R, de Jager K, Deconinck W, Decowski P, Deng X, Deur A, Dutta D, Etile A, Flay D, Franklin GB, Friend M, Frullani S, Fuchey E, Garibaldi F, Gasser E, Gilman R, Giusa A, Glamazdin A, Gomez J, Grames J, Gu C, Hansen O, Hansknecht J, Higinbotham DW, Holmes RS, Holmstrom T, Horowitz CJ, Hoskins J, Huang J, Hyde CE, Itard F, Jen CM, Jensen E, Jin G, Johnston S, Kelleher A, Kliakhandler K, King PM, Kowalski S, Kumar KS, Leacock J, Leckey J, Lee JH, LeRose JJ, Lindgren R, Liyanage N, Lubinsky N, Mammei J, Mammoliti F, Margaziotis DJ, Markowitz P, McCreary A, McNulty D, Mercado L, Meziani ZE, Michaels RW, Mihovilovic M, Muangma N, Muñoz-Camacho C, Nanda S, Nelyubin V, Nuruzzaman N, Oh Y, Palmer A, Parno D, Paschke KD, Phillips SK, Poelker B, Pomatsalyuk R, Posik M, Puckett AJR, Quinn B, Rakhman A, Reimer PE, Riordan S, Rogan P, Ron G, Russo G, Saenboonruang K, Saha A, Sawatzky B, Shahinyan A, Silwal R, Sirca S, Slifer K, Solvignon P, Souder PA, Sperduto ML, Subedi R, Suleiman R, Sulkosky V, Sutera CM, Tobias WA, Troth W, Urciuoli GM, Waidyawansa B, Wang D, Wexler J, Wilson R, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yim V, Zana L, Zhan X, Zhang J, Zhang Y, Zheng X, Zhu P. Measurement of the neutron radius of 208Pb through parity violation in electron scattering. Phys Rev Lett 2012; 108:112502. [PMID: 22540469 DOI: 10.1103/physrevlett.108.112502] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Indexed: 05/31/2023]
Abstract
We report the first measurement of the parity-violating asymmetry A(PV) in the elastic scattering of polarized electrons from 208Pb. A(PV) is sensitive to the radius of the neutron distribution (R(n)). The result A(PV)=0.656±0.060(stat)±0.014(syst) ppm corresponds to a difference between the radii of the neutron and proton distributions R(n)-R(p)=0.33(-0.18)(+0.16) fm and provides the first electroweak observation of the neutron skin which is expected in a heavy, neutron-rich nucleus.
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43
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Ahmed Z, Allada K, Aniol KA, Armstrong DS, Arrington J, Baturin P, Bellini V, Benesch J, Beminiwattha R, Benmokhtar F, Canan M, Camsonne A, Cates GD, Chen JP, Chudakov E, Cisbani E, Dalton MM, de Jager CW, De Leo R, Deconinck W, Decowski P, Deng X, Deur A, Dutta C, Franklin GB, Friend M, Frullani S, Garibaldi F, Giusa A, Glamazdin A, Golge S, Grimm K, Hansen O, Higinbotham DW, Holmes R, Holmstrom T, Huang J, Huang M, Hyde CE, Jen CM, Jin G, Jones D, Kang H, King P, Kowalski S, Kumar KS, Lee JH, LeRose JJ, Liyanage N, Long E, McNulty D, Margaziotis D, Meddi F, Meekins DG, Mercado L, Meziani ZE, Michaels R, Muñoz-Camacho C, Mihovilovic M, Muangma N, Myers KE, Nanda S, Narayan A, Nelyubin V, Oh Y, Pan K, Parno D, Paschke KD, Phillips SK, Qian X, Qiang Y, Quinn B, Rakhman A, Reimer PE, Rider K, Riordan S, Roche J, Rubin J, Russo G, Saenboonruang K, Saha A, Sawatzky B, Silwal R, Sirca S, Souder PA, Sperduto M, Subedi R, Suleiman R, Sulkosky V, Sutera CM, Tobias WA, Urciuoli GM, Waidyawansa B, Wang D, Wexler J, Wilson R, Wojtsekhowski B, Zhan X, Yan X, Yao H, Ye L, Zhao B, Zheng X. New precision limit on the strange vector form factors of the proton. Phys Rev Lett 2012; 108:102001. [PMID: 22468841 DOI: 10.1103/physrevlett.108.102001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Indexed: 05/31/2023]
Abstract
The parity-violating cross-section asymmetry in the elastic scattering of polarized electrons from unpolarized protons has been measured at a four-momentum transfer squared Q2 = 0.624 GeV2 and beam energy E(b) = 3.48 GeV to be A(PV) = -23.80 ± 0.78(stat) ± 0.36(syst) parts per million. This result is consistent with zero contribution of strange quarks to the combination of electric and magnetic form factors G(E)(s) + 0.517G(M)(s) = 0.003 ± 0.010(stat) ± 0.004(syst) ± 0.009(ff), where the third error is due to the limits of precision on the electromagnetic form factors and radiative corrections. With this measurement, the world data on strange contributions to nucleon form factors are seen to be consistent with zero and not more than a few percent of the proton form factors.
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Affiliation(s)
- Z Ahmed
- Syracuse University, Syracuse, New York 13244, USA
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44
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Hagel K, Wada R, Qin L, Natowitz JB, Shlomo S, Bonasera A, Röpke G, Typel S, Chen Z, Huang M, Wang J, Zheng H, Kowalski S, Bottosso C, Barbui M, Rodrigues MRD, Schmidt K, Fabris D, Lunardon M, Moretto S, Nebbia G, Pesente S, Rizzi V, Viesti G, Cinausero M, Prete G, Keutgen T, El Masri Y, Majka Z. Experimental determination of in-medium cluster binding energies and Mott points in nuclear matter. Phys Rev Lett 2012; 108:062702. [PMID: 22401061 DOI: 10.1103/physrevlett.108.062702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Indexed: 05/31/2023]
Abstract
In-medium binding energies and Mott points for d, t, 3He and α clusters in low-density nuclear matter have been determined at specific combinations of temperature and density in low-density nuclear matter produced in collisions of 47A MeV 40Ar and 64Zn projectiles with 112Sn and 124Sn target nuclei. The experimentally derived values of the in-medium modified binding energies are in good agreement with recent theoretical predictions based upon the implementation of Pauli blocking effects in a quantum statistical approach.
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Affiliation(s)
- K Hagel
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
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45
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46
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Najman R, Płaneta R, Sochocka A, Amorini F, Auditore L, Bubak A, Cap T, Cardella G, De Filippo E, Geraci E, Grassi L, Grzeszczuk A, La Guidara E, Han J, Loria D, Kowalski S, Kozik T, Lanzalone G, Lombardo I, Majka Z, Nicolis NG, Pagano A, Piasecki E, Pirrone S, Politi G, Rizzo F, Russotto P, Siwek-Wilczyéska K, Skwira-Chalot I, Trifiró A, Trimarchi M, Wilczyński J, Verde G, Zipper W. Global characteristics of 197Au + 197Au collisions at 23 AMeV. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123100026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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47
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Larin I, McNulty D, Clinton E, Ambrozewicz P, Lawrence D, Nakagawa I, Prok Y, Teymurazyan A, Ahmidouch A, Asratyan A, Baker K, Benton L, Bernstein AM, Burkert V, Cole P, Collins P, Dale D, Danagoulian S, Davidenko G, Demirchyan R, Deur A, Dolgolenko A, Dzyubenko G, Ent R, Evdokimov A, Feng J, Gabrielyan M, Gan L, Gasparian A, Gevorkyan S, Glamazdin A, Goryachev V, Gyurjyan V, Hardy K, He J, Ito M, Jiang L, Kashy D, Khandaker M, Kingsberry P, Kolarkar A, Konchatnyi M, Korchin A, Korsch W, Kowalski S, Kubantsev M, Kubarovsky V, Li X, Martel P, Matveev V, Mecking B, Milbrath B, Minehart R, Miskimen R, Mochalov V, Mtingwa S, Overby S, Pasyuk E, Payen M, Pedroni R, Ritchie B, Rodrigues TE, Salgado C, Shahinyan A, Sitnikov A, Sober D, Stepanyan S, Stephens W, Underwood J, Vasiliev A, Vishnyakov V, Wood M, Zhou S. New Measurement of the π0 radiative decay width. Phys Rev Lett 2011; 106:162303. [PMID: 21599360 DOI: 10.1103/physrevlett.106.162303] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2010] [Indexed: 05/30/2023]
Abstract
High precision measurements of the differential cross sections for π0 photoproduction at forward angles for two nuclei, 12C and 208Pb, have been performed for incident photon energies of 4.9-5.5 GeV to extract the π0→γγ decay width. The experiment was done at Jefferson Lab using the Hall B photon tagger and a high-resolution multichannel calorimeter. The π0→γγ decay width was extracted by fitting the measured cross sections using recently updated theoretical models for the process. The resulting value for the decay width is Γ(π0→γγ)=7.82±0.14(stat)±0.17(syst) eV. With the 2.8% total uncertainty, this result is a factor of 2.5 more precise than the current Particle Data Group average of this fundamental quantity, and it is consistent with current theoretical predictions.
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Affiliation(s)
- I Larin
- Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia
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48
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Natowitz JB, Röpke G, Typel S, Blaschke D, Bonasera A, Hagel K, Klähn T, Kowalski S, Qin L, Shlomo S, Wada R, Wolter HH. Symmetry energy of dilute warm nuclear matter. Phys Rev Lett 2010; 104:202501. [PMID: 20867023 DOI: 10.1103/physrevlett.104.202501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Indexed: 05/29/2023]
Abstract
The symmetry energy of nuclear matter is a fundamental ingredient in the investigation of exotic nuclei, heavy-ion collisions, and astrophysical phenomena. New data from heavy-ion collisions can be used to extract the free symmetry energy and the internal symmetry energy at subsaturation densities and temperatures below 10 MeV. Conventional theoretical calculations of the symmetry energy based on mean-field approaches fail to give the correct low-temperature, low-density limit that is governed by correlations, in particular, by the appearance of bound states. A recently developed quantum-statistical approach that takes the formation of clusters into account predicts symmetry energies that are in very good agreement with the experimental data. A consistent description of the symmetry energy is given that joins the correct low-density limit with quasiparticle approaches valid near the saturation density.
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Affiliation(s)
- J B Natowitz
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843-3366, USA
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49
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Kowalski S, Charles F, Nano JL, Fournel S, Hébuterne X, Rampal P. Lipid metabolism by the intestinal mucosa in malnourished subjects following enteral nutrition supplemented with omega3 fatty acids. Clin Nutr 2009; 12:174-81. [PMID: 16843308 DOI: 10.1016/0261-5614(93)90077-h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/1992] [Accepted: 09/17/1992] [Indexed: 11/17/2022]
Abstract
UNLABELLED Chronic malnutrition results in severe metabolic imbalance in man as the body modifies its modes of regulation of different nutrients, and in particular lipids. This study of the modifications in lipid metabolism induced by 15 days of enteral renutrition include: 12 malnourished patients (global nutritional deficit (GND) <20%) were given a cyclical enteral diet for 15 days under two conditions: ternary diet (Sondalis) or a similar diet whose lipid concentration was enriched by 5.3 g omega3 fatty acid per day. On Day 0 and Day 15, the serum lipid values were assayed and duodenal biopsies were taken to measure HMG-CoA reductase and (14)C acetate incorporation in the various classes of lipids. After 15 days of refeeding, the GND had been corrected by an average of 27% and HMG-CoA reductase activity had increased by 37% (60.2 +/- 7.46 vs 82.88 +/- 14.8 pmol/min/mg protein; p < 0.05). In 7 12 patients, the serum cholesterol values had increased (p < 0.01). No difference was observed in synthesis of FA, DG or cholesterol. Synthesis of phosphatidylcholines (PC) and phosphatidylglycerols (PG) was reduced by 12% and 23% respectively. Triglyceride synthesis (TG) increased by 20% (p < 0.05). The only difference between the two diets was in TG synthesis in organ-specific culture, which was increased only by the standard diet. IN CONCLUSION (i) refeeding is accompanied by an increase in intestinal HMG-CoA reductase activity, a decrease in PC and PG synthesis, and an increase in TG synthesis; (ii) a diet enriched in omega3 FA increases TG synthesis less than the standard diet.
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Affiliation(s)
- S Kowalski
- Laboratoire de Gastroentérologie et de Nutrition, UER de Médecine, Avenue de Valombrose, 06107 Nice Cedex 2, France
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50
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Baunack S, Aulenbacher K, Balaguer Ríos D, Capozza L, Diefenbach J, Gläser B, von Harrach D, Imai Y, Kabuss EM, Kothe R, Lee JH, Merkel H, Mora Espí MC, Müller U, Schilling E, Stephan G, Weinrich C, Arvieux J, El-Yakoubi MA, Frascaria R, Kunne R, Maas FE, Morlet M, Ong S, van de Wiele J, Kowalski S, Prok Y, Taylor S. Measurement of strange quark contributions to the vector form factors of the proton at Q2 = 0.22 (GeV / c)2. Phys Rev Lett 2009; 102:151803. [PMID: 19518619 DOI: 10.1103/physrevlett.102.151803] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Indexed: 05/27/2023]
Abstract
A new measurement of the parity violating asymmetry in elastic electron scattering on hydrogen at backward angles and at a four momentum transfer of Q;{2} = 0.22 (Ge V / c);{2} is reported here. The measured asymmetry is A_{LR} = (-17.23 +/- 0.82_{stat} +/- 0.89_{syst}) x 10;{-6}. The standard model prediction assuming no strangeness is A_{0} = (-15.87 +/- 1.22) x 10;{-6}. In combination with previous results from measurements at forward angles, it is possible to disentangle for the first time the strange form factors at this momentum transfer, G_{E};{s} = 0.050 +/- 0.038 +/- 0.019 and G_{M};{s} = -0.14 +/- 0.11 +/- 0.11.
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Affiliation(s)
- S Baunack
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany.
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