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Fischer O, Cox DW, Mickelson JM, Lyons K. Bridging the multicultural orientation framework with sexual and gender minority psychotherapy: A mixed studies systematic review. Psychotherapy (Chic) 2024; 61:1-30. [PMID: 38206866 DOI: 10.1037/pst0000518] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Sexual and gender minorities (SGM) experience higher rates of psychological distress and seek psychotherapy at higher rates compared to their heterosexual and cisgender counterparts. However, few therapists are trained on how to provide effective psychotherapy with SGM clients. The multicultural orientation (MCO) framework, which has been linked to improved therapeutic processes and outcomes, may be a valuable tool for working with SGM clients. The primary aim of this systematic review was to link the MCO framework to existing empirical psychotherapy research with SGM clients. A secondary aim was to examine how MCO constructs that we identified within the SGM literature have been associated with therapeutic processes and outcomes with SGM clients. A systematic search of five databases yielded 61 studies that were included in the review. Framework analysis was used to extract data and identify themes and subthemes related to MCO constructs from included studies. Results of the review demonstrate how the MCO framework can be used to conceptualize psychotherapy with SGM clients and-using the MCO framework-highlight potential beneficial and harmful therapist qualities and actions when working with SGM clients. Implications for future research and psychotherapy practice with SGM clients are discussed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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Affiliation(s)
- Olivia Fischer
- Counselling Psychology Program, University of British Columbia
| | - Daniel W Cox
- Counselling Psychology Program, University of British Columbia
| | | | - Kelly Lyons
- Counselling Psychology Program, University of British Columbia
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Cox DW, Deptuck HM, Fischer O, Wojcik KD. The role of the therapeutic bond when working with clients in suicidal crisis. J Couns Psychol 2024; 71:115-125. [PMID: 38376931 DOI: 10.1037/cou0000724] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The desire to die by suicide has been linked with interpersonal difficulties and impeded clinical outcomes. Despite the emphasis on the therapeutic relationship in clinical guidelines for working with suicidal clients, little is known about how suicidal clients' interpersonal difficulties manifest in clinical contexts. Additionally, there is limited understanding of the therapeutic relationship in single-session suicidal crisis contexts. Our aim was to examine the trajectory of the therapeutic bond in mediating clients' suicidal desire and outcome in single-session suicidal crisis intervention. Single-session online text-based crisis intervention sessions (N = 354; Mage = 29.43, SD = 9.15; 64.5% women) were coded for suicidal desire, therapeutic bond (each quarter), and outcome. We examined the proposed sequential mediating model (suicidal desire to early bond to bond change to outcome) using structural equation modeling. The proposed sequential mediation model fits the data well, χ2(11) = 22.030, p = .0241, root-mean-square error of approximation = .053, 90% CI [.019, .085], comparative fit index = .983, Tucker-Lewis index = .977, and was a better fit than several alternative models. Further, the indirect effect from suicidal desire to outcome through early bond and bond change was significant (b = -0.474, 99% CI [-0.782, -0.203]). Our findings indicate that therapeutic bonds were beneficial for clients with elevated suicidal desire-and-elevated suicidal desire was negatively associated with therapeutic bonds. These findings highlight the importance of training clinicians to navigate the unique challenges of developing therapeutic bonds with acutely suicidal clients. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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Affiliation(s)
- Daniel W Cox
- Counselling Psychology Program, University of British Columbia
| | | | - Olivia Fischer
- Counselling Psychology Program, University of British Columbia
| | - Katharine D Wojcik
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine
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3
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Freeman M, Fischer O, Lebel C, Giesbrecht GF, Tomfohr-Madsen L. Making diversity visible: collecting gender identity and sexual orientation data in perinatal research. Am J Obstet Gynecol 2024; 230:269-271. [PMID: 37788718 DOI: 10.1016/j.ajog.2023.09.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/05/2023]
Affiliation(s)
- Makayla Freeman
- Department of Educational and Counselling Psychology, and Special Education, Faculty of Education, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.
| | - Olivia Fischer
- Department of Educational and Counselling Psychology, and Special Education, Faculty of Education, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
| | - Catherine Lebel
- Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Gerald F Giesbrecht
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Lianne Tomfohr-Madsen
- Department of Educational and Counselling Psychology, and Special Education, Faculty of Education, University of British Columbia, Vancouver, British Columbia, Canada
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Tan S, Pryor AJG, Melville GW, Fischer O, Hewitt L, Davis KJ. The lingering symptoms of post-COVID-19 condition (long-COVID): a prospective cohort study. Intern Med J 2024; 54:224-233. [PMID: 38008902 DOI: 10.1111/imj.16251] [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: 03/08/2023] [Accepted: 09/15/2023] [Indexed: 11/28/2023]
Abstract
BACKGROUND Longer-term symptoms (long COVID) may be present in seemingly recovered patients for several months and can be debilitating. AIM To investigate the prevalence and type of symptoms in those with a prior COVID-19 diagnosis. METHODS This prospective, longitudinal observational study commenced in July 2020 investigating the longer-term health impacts of COVID-19. Participants were recruited via public health units and media publicity. Surveys were completed upon enrolment, and at 1, 3, 6 and 12 months. Outcome measures included incidence of activity limitations and symptoms against health and vaccination status, age and gender. RESULTS Overall, 339 participants were recruited. At 3 months after COVID-19, 66.8% reported symptoms, and 44.8% were still experiencing symptoms at 12 months. Fatigue was most common at every point (between 53.1% and 33.1%). Pain symptoms increased in relative prevalence over time, whereas respiratory/pulmonary-type symptoms decreased substantially after 3 months. Females and younger people were more likely to experience symptoms in the early stages of long COVID (P < 0.01) and those with more comorbidities in the latter stages (P < 0.001). Vaccination showed a statistically significant protective effect against symptoms (P < 0.01-0.001). CONCLUSION Long-term COVID-19 symptoms exist among recovered patients up to 12 months after contracting the virus. Fatigue is a primary contributor, while chronic pain became more problematic after 6 months. Vaccination was a factor in preventing long-term symptoms and aiding faster recovery from symptoms. Further work exploring additional contributors to symptom prevalence would assist in developing appropriate follow-up care.
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Affiliation(s)
- Stuart Tan
- Physician in Trauma and Rehabilitation Medicine, Illawarra Shoalhaven Local Health District, New South Wales, Australia
- Senior Staff Specialist, Wollongong Hospital, Wollongong, New South Wales, Australia
- Graduate School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
| | - Anna J G Pryor
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong, New South Wales, Australia
| | - Geoffrey W Melville
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong, New South Wales, Australia
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia
| | - Olivia Fischer
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong, New South Wales, Australia
| | - Lyndel Hewitt
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong, New South Wales, Australia
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia
| | - Kimberley J Davis
- Graduate School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong, New South Wales, Australia
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Müller MJ, Fischer O, Dieks J, Schneider HE, Paul T, Krause U. Catheter Ablation of Coronary Sinus Accessory Pathways in the Young. Heart Rhythm 2023; 20:891-899. [PMID: 36898470 DOI: 10.1016/j.hrthm.2023.03.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/01/2023] [Accepted: 03/04/2023] [Indexed: 03/12/2023]
Abstract
BACKGROUND Accessory atrioventricular pathways (AP) are the most common tachycardia substrate for supraventricular tachycardia (SVT) in the young. Endocardial catheter ablation of AP may be unsuccessful in up to 5% due to a coronary sinus location. OBJECTIVE Data on ablation of accessory pathways within the coronary venous system (CVS) in the young is sparse. METHODS Analysis of feasibility, outcome, and safety in patients ≤18 years with coronary sinus accessory pathways (CS-AP) and catheter ablation via CVS in a tertiary pediatric electrophysiological referral center (05/2003-12/2021). Control group adjusted for age, weight, and pathway location was established from patients of the prospective European Multicenter Pediatric Ablation Registry who all had endocardial AP ablation. RESULTS 24 individuals had mapping and intended AP ablation within the CVS (age: 2.7-17.3 years, body weight: 15.0-72.0 kg). Due to proximity to coronary artery, ablation was withheld in 2/24. Overall procedural success was achieved in 20/22 (90.9%) study patients and in 46/48 (95.8%) controls. Coronary artery injury after RF ablation was noted in 2/22 (9%) study patients and in 1/48 (2%) controls. In CVS patients repeat SVT occurred in 5/22 (23%) during a median follow-up of 8.5 years, 4/5 underwent reablation resulting in 94.4% overall success. Controls were free from SVT during follow-up of 12 months as defined by registry protocol. CONCLUSIONS Success of CS-AP ablation in the young was comparable to endocardial AP-ablation. Substantial risk of coronary artery injury should be considered when CS-AP ablation is performed in the young.
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Affiliation(s)
- Matthias J Müller
- Department of Pediatric Cardiology, Intensive Care Medicine and Neonatology, Georg August University Medical Center, Göttingen, Germany.
| | - Olivia Fischer
- Department of Pediatric Cardiology, Intensive Care Medicine and Neonatology, Georg August University Medical Center, Göttingen, Germany
| | - Jana Dieks
- Department of Pediatric Cardiology, Intensive Care Medicine and Neonatology, Georg August University Medical Center, Göttingen, Germany
| | - Heike E Schneider
- Department of Pediatric Cardiology, Intensive Care Medicine and Neonatology, Georg August University Medical Center, Göttingen, Germany
| | - Thomas Paul
- Department of Pediatric Cardiology, Intensive Care Medicine and Neonatology, Georg August University Medical Center, Göttingen, Germany
| | - Ulrich Krause
- Department of Pediatric Cardiology, Intensive Care Medicine and Neonatology, Georg August University Medical Center, Göttingen, Germany
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Tan B, Seth I, Fischer O, Hewitt L, Melville G, Bulloch G, Ashford B. Sex Disparity for Patients with Cutaneous Squamous Cell Carcinoma of the Head and Neck: A Systematic Review. Cancers (Basel) 2022; 14:cancers14235830. [PMID: 36497312 PMCID: PMC9740937 DOI: 10.3390/cancers14235830] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 11/03/2022] [Revised: 11/18/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
The incidence of head and neck cutaneous squamous cell carcinoma (HNcSCC) is unevenly distributed between men and women. At present, the mechanism behind this disparity remains elusive. This study conducted a systematic review and meta-analysis of proportions to investigate the disparity between sexes for patients with HNcSCC. PubMed, Scopus, EMBASE, MEDLINE, Emcare and CINAHL were searched in November 2021 and June 2022 (N > 50, English, human), and studies which examined the association between sex and HNcSCC were included. Analysis was conducted using RStudio with data and forest plots displaying males as a proportion of total patients with HNcSCC. Two independent researchers performed study selection, data extraction, data analysis and risk of bias. Eighty-two studies (1948 to 2018) comprising approximately 186,000 participants (67% male, 33% female) from 29 countries were included. Significantly more males had HNcSCC overall (71%; CI: 67−74). Males were also significantly more affected by cSCC of the ear (92%; CI: 89−94), lip (74%; CI: 66−81), and eyelid (56%; CI: 51−62). This study found HNcSCC disproportionately affected males overall and across all subtypes. Improving our understanding of sex-specific mechanisms in HNcSCC will better inform our preventive, therapeutic and prognostic practices.
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Affiliation(s)
- Brandon Tan
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500, Australia
| | - Ishith Seth
- Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Olivia Fischer
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500, Australia
| | - Lyndel Hewitt
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- Correspondence: ; Tel.: +61-02-42534801
| | - Geoffrey Melville
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500, Australia
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Gabriella Bulloch
- Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
| | - Bruce Ashford
- Research Central, Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, NSW 2500, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- Sydney Head and Neck Cancer Institute, Chris O’Brien Lifehouse, 119-143 Missenden Road, Camperdown, NSW 2050, Australia
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Rothgerber H, Rosenfeld DL, Keiffer S, Crable K, Yeske A, Berger L, Camp P, Smith K, Fischer O, Head A. Motivated Moral Outrage Among Meat-Eaters. Social Psychological and Personality Science 2021. [DOI: 10.1177/19485506211041536] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Many meat-eaters experience cognitive dissonance when aware that their eating behaviors contradict their moral values, such as desires to protect the environment or animals from harm. One way in which people morally disengage from their behaviors—and thus avoid dissonance—is to displace responsibility onto others. Aligning with this notion, results of three studies (total N = 1,501) suggest that expressing moral outrage at third-party transgressors reduces dissonance and preserves moral identity among meat-eaters. When participants understood their in-group as responsible for factory farming’s negative impact or read about factory farming’s harms to animals, expressing moral outrage at third-party transgressors reduced guilt and elevated self-rated moral character. Moreover, reflecting on the morally troublesome nature of meat-eating led participants to express more moral outrage at a third-party organization responsible for animal abuse, an effect eliminated by self-affirmation. These findings substantiate moral outrage as a new mechanism to justify meat consumption.
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Affiliation(s)
- Hank Rothgerber
- Department of Psychology, Bellarmine University, Louisville, KY, USA
| | | | - Savannah Keiffer
- Department of Psychology, Bellarmine University, Louisville, KY, USA
| | - Kristen Crable
- Department of Psychology, Bellarmine University, Louisville, KY, USA
| | - Annika Yeske
- Department of Psychology, Bellarmine University, Louisville, KY, USA
| | - Lila Berger
- Department of Psychology, Bellarmine University, Louisville, KY, USA
| | - Peyton Camp
- Department of Psychology, Bellarmine University, Louisville, KY, USA
| | - Kirsten Smith
- Department of Psychology, Bellarmine University, Louisville, KY, USA
| | - Olivia Fischer
- Department of Psychology, Bellarmine University, Louisville, KY, USA
| | - Aryn Head
- Department of Psychology, Bellarmine University, Louisville, KY, USA
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Bass C, Ruen A, Hau R, Fischer O, Dorsam S. 106 Maternal recognition of pregnancy (MRP) and mares: Is the epithelial sodium channel (ENaC) involved? J Equine Vet Sci 2021. [DOI: 10.1016/j.jevs.2021.103569] [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: 10/21/2022]
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9
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Dreier J, Husgennerger M, Aubert C, Bandurski T, Fischer O, Healzer J, Lomperski S, Strassberger HJ, Varadi G, Yadigaroglu G. The PANDA facılity and first test results / Die Versuchsanlage PANDA und erste Versuchsergebnisse. KERNTECHNIK 2021. [DOI: 10.1515/kern-1996-615-607] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Prytherch H, Karimova G, Schueth T, Egamberdiev M, Fischer O, Sadonshoeva G, Djamalova M, Shabalina G, Mukhtarova P, Aminov O. Developing a national framework for community involvement in health promotion in Tajikistan. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.447] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In rural Tajikistan, various approaches have been taken to involve communities in health promotion, but many of them survived only as long as there was outside donor support.
Methods
In 2017, these approaches were examined and conceptualized, leading to the development of a “Guideline on Partnership with Communities on Health Issues” that was put into practice in 11 rural districts of the country.
Results
The Guideline sees Primary Health Care (PHC) staff trained as facilitators so as to conduct Participatory Reflection and Action (PRA) sessions with their local communities. Based on health priorities identified through these PRA sessions, and on national health priorities, the Health Promotion Institute chooses annual community activities facilitating behavioral change. Community Health Teams (CHTs) are formed, and the facilitators train them in disease prevention activities, and in how to plan initiatives to promote better health and well-being at village level. In the 5 initial districts, CHTs successfully mobilized community members to take part in activities related to identified health priorities e.g. health actions on Hypertension and Diabetes including free screenings. Furthermore, CHTs started to address determinants of health e.g. by supporting disabled people in their communities, organizing weekly waste removals, and initiating womens' walking groups.
Conclusions
Engaging communities by forming and capacitating teams, leads them to become a partner to the PHC system, and empowers them to tackle local determinants of health through their own initiatives. The capacity built in the local primary health care and health promotion structures hold potential for an expansion of this community-based approach to health promotion throughout the country. So what? By encouraging a government-recognized approach to community involvement in health, capacity and ownership of local institutions and stakeholders has increased, providing promise for long term sustainability.
Key messages
Community involvement in health remains central to primary health care. A government-recognised approach provides promise for sustainability.
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Affiliation(s)
- H Prytherch
- Swiss Centre for International Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - G Karimova
- SDCs Enhancing Primary Health Care Project, Dushanbe, Tajikistan
| | - T Schueth
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - M Egamberdiev
- SDCs Enhancing Primary Health Care Project, Dushanbe, Tajikistan
| | - O Fischer
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | | | - M Djamalova
- Swiss Agency for Development and Cooperation, Dushanbe, Tajikistan
| | - G Shabalina
- Save the Children, SDC’s Enhancing Primary Health Care Services Project, Dushanbe, Tajikistan
| | - P Mukhtarova
- Republican Centre for Healthy Lifestyle, Ministry of Health and Social Protection, Dushanbe, Tajikistan
| | - O Aminov
- Department for Reform, PHC and International Rel, Ministry of Health and Social Protection, Dushanbe, Tajikistan
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Chemotherapy HII, Report SCAPOMTOMPMC, Szkorupa M, Klos D, Chudacek J, Hanuliak J, Stasek M, Fischer O, Lemstrová R. Hyperthermic intraoperative intrapleural chemotherapy and surgical cytoreduction as part of multimodal treatment of malignant pleural mesothelioma - case report M. Szkorupa1, D. Klos1, J. Chudacek1, J. Hanuliak1, M. Stasek1, O. Fischer2, R. Lemstrova3. Rozhl Chir 2020; 99:456-461. [PMID: 33242963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Malignant pleural mesothelioma is one of the most aggressive malignancies with a very poor prognosis. Multimodal treatment consisting of three modalities - chemotherapy, radiotherapy and cytoreductive surgery is optimal. The use of new therapeutic modalities, such as hyperthermic intraoperative intrapleural chemotherapy or photodynamic therapy can improve the current results of mesothelioma treatment. Combined hyperthermic intraoperative chemotherapy and cytoreductive surgery as part of multimodal therapy of malignant mesothelioma has been used since 2017 at the 1st Department of Surgery of University Hospital Olomouc. The authors report the case of a 47-year-old man with malignant epithelioid mesothelioma of the left pleural cavity. Following neoadjuvant chemotherapy, this patient underwent extrapleural pneumonectomy with intraoperative intracavitary hyperthermic chemotherapy. The postoperative period was complicated by circulatory instability and later by tension fluidothorax with signs of heart failure. Currently, 8 months have elapsed from the surgery and the patient remains without any signs of recurrence.
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Skřičková J, Májková P, Bařinová M, Pešek M, Kolek V, Grygárková I, Fischer O, Koubková L, Černovská M, Havel L, Roubec J, Hrnčiarik M, Zemanová M, Sixtová D, Šatánková M, Benejová A, Opálka P, Krejčí J, Čoupková H, Tomíšková M, Merta Z. P2.14-34 Tyrosine-Kinase Inhibitors (TKI) in First-Line Treatment of 470 Patients with Non-Small Cell Lung Cancer (NSCLC) from the Czech Republic. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1819] [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: 10/25/2022]
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Mousa S, Bopaiah C, Shaqura M, Fischer O, Hofmann J, Hellweg R, Schaefer M. 344 NERVE GROWTH FACTOR GOVERNS THE ENHANCED ABILITY OF OPIOIDS TO SUPPRESS INFLAMMATORY PAIN. Eur J Pain 2012. [DOI: 10.1016/s1090-3801(06)60347-9] [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: 10/23/2022]
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14
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Brehme S, Schartel B, Goebbels J, Fischer O, Pospiech D, Bykov Y, Döring M. Phosphorus polyester versus aluminium phosphinate in poly(butylene terephthalate) (PBT): Flame retardancy performance and mechanisms. Polym Degrad Stab 2011. [DOI: 10.1016/j.polymdegradstab.2011.01.035] [Citation(s) in RCA: 182] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Petrović AP, Lortz R, Santi G, Berthod C, Dubois C, Decroux M, Demuer A, Antunes AB, Paré A, Salloum D, Gougeon P, Potel M, Fischer O. Multiband superconductivity in the Chevrel phases SnMo6S8 and PbMo6S8. Phys Rev Lett 2011; 106:017003. [PMID: 21231768 DOI: 10.1103/physrevlett.106.017003] [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: 06/29/2010] [Indexed: 05/30/2023]
Abstract
Sub-Kelvin scanning tunneling spectroscopy in the Chevrel phases SnMo6S8 and PbMo6S8 reveals two distinct superconducting gaps with Δ1=3 meV, Δ2∼1.0 meV and Δ1=3.1 meV, Δ2∼1.4 meV, respectively. The gap distribution is strongly anisotropic, with Δ2 predominantly seen when scanning across unit-cell steps on the (001) sample surface. The spectra are well fitted by an anisotropic two-band BCS s-wave gap function. Our spectroscopic data are confirmed by electronic heat capacity measurements, which also provide evidence for a twin-gap scenario.
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Affiliation(s)
- A P Petrović
- DPMC-MaNEP, Université de Genève, Quai Ernest-Ansermet 24, 1211 Genève 4, Switzerland
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16
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Dubois C, Santi G, Cuttat I, Berthod C, Jenkins N, Petrović AP, Manuel AA, Fischer O, Kazakov SM, Bukowski Z, Karpinski J. Scanning tunneling spectroscopy in the superconducting state and vortex cores of the beta-pyrochlore KOs2O6. Phys Rev Lett 2008; 101:057004. [PMID: 18764421 DOI: 10.1103/physrevlett.101.057004] [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: 03/30/2007] [Indexed: 05/26/2023]
Abstract
We performed the first scanning tunneling spectroscopy measurements on the pyrochlore superconductor KOs2O6 (T(c)=9.6 K) in both zero magnetic field and the vortex state at several temperatures above 1.95 K. This material presents atomically flat surfaces, yielding spatially homogeneous spectra which reveal fully gapped superconductivity with a gap anisotropy of 30%. Measurements performed at fields of 2 and 6 T display a hexagonal Abrikosov flux line lattice. From the shape of the vortex cores, we extract a coherence length of 31-40 A, in agreement with the value derived from the upper critical field H(c2). We observe a reduction in size of the vortex cores (and hence the coherence length) with increasing field which is consistent with the unexpectedly high and unsaturated upper critical field reported.
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Affiliation(s)
- C Dubois
- DPMC-MaNEP, Université de Genève, Quai Ernest-Ansermet 24, Genève 4, Switzerland.
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Abstract
Meiotic recombination destroys successful genotypes and it is therefore thought to evolve only under a very limited set of conditions. Here, we experimentally show that recombination rates across two linkage groups of the host, the red flour beetle Tribolium castaneum, increase with exposure to the microsporidian parasite, Nosema whitei, particularly when parasites were allowed to coevolve with their hosts. Selection by randomly varied parasites resulted in smaller effects, while directional selection for insecticide resistance initially reduced recombination slightly. These results, at least tentatively, suggest that short-term benefits of recombination--and thus the evolution of sex--may be related to parasitism.
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18
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Affiliation(s)
- E. Besthorn
- Chem. Laborat. d. K. Akad. d. Wissensch. zu München
| | - O. Fischer
- Chem. Laborat. d. K. Akad. d. Wissensch. zu München
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19
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Affiliation(s)
| | - P. Neber
- Chem. Laborat. der Universität Erlangen
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23
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Simon A, Fischer O. Beiträge zur Kenntnis von Hydrogelen. VI. Mitteilung. Über den Übergang von Hydratwasser in Adsorptionswasser bei mechanischer Zerkleinerung von Kristallhydraten. Z Anorg Allg Chem 2004. [DOI: 10.1002/zaac.19291850107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Fischer O, Gross H. IX. Zur Kenntnis der Chrysophansäure, des Frangula-Emodins und einiger Oxoniumverbindungen von Anthracenderivaten. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/prac.19110840121] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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29
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Alton K, Fischer O, Utzmann S, Schilcher F. P-33 Poxvirus infection in two cats. Vet Dermatol 2004. [DOI: 10.1111/j.1365-3164.2004.00414_33.x] [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: 11/28/2022]
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30
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Schmachtenberg E, Fischer O, Eifel D. INVESTIGATIONS ON THE FIBRE FRACTURE BEHAVIOUR OF CFRP LAMINATES UNDER BIAXIAL LOADING. Journal of Polymer Engineering 2004. [DOI: 10.1515/polyeng.2004.24.1-3.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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31
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32
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Licht P, Neuwinger J, Fischer O, Siebzehnrübl E, Wildt L. VEGF plasma pattern in ovulation induction: evidence for an episodic secretion and lack of immediate effect of hCG. Exp Clin Endocrinol Diabetes 2002; 110:130-3. [PMID: 12012273 DOI: 10.1055/s-2002-29090] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Vascular endothelial growth factor (VEGF) is a potent stimulator of vascular proliferation and permeability. Ovarian granulosa cells have been identified as a major source of the cytokine and r-hCG was able to stimulate VEGF mRNA expression in vitro. In this study we have investigated the immediate effect of ovulation induction with hCG on peripheral VEGF levels in 6 women with primary infertility enrolled in the IVF/ET program. The patients underwent a 24-hour continuous blood withdrawal with sampling intervals of 15 minutes starting from 5 hours before ovulation induction with 10.000 IU hCG. Ovulation induction with hCG had no significant immediate effect on mean peripheral VEGF levels. However, VEGF plasma levels did exhibit significant episodic fluctuations with rapid increases every 90-120 minutes without any relation to circulating hCG levels. Taken together, the results of this study suggest that VEGF is released episodically and that systemic VEGF levels are not acutely altered by ovulation induction with hCG.
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Affiliation(s)
- P Licht
- Division of Gynaecological Endocrinology & Reproductive Medicine, Department of Obstetrics and Gynaecology, University of Erlangen-Nürnberg, Universitätsstr. 21-23, D-91054 Erlangen, Germany.
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Licht P, Neuwinger J, Fischer O, Siebzehnrübl E, Wildt L. Peripheral levels of vascular endothelial growth factor (VEGF) are higher in gonadotropin stimulated as compared to natural ovarian cycles. Exp Clin Endocrinol Diabetes 2002; 109:345-9. [PMID: 11571674 DOI: 10.1055/s-2001-17402] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The purpose of the present study was to investigate the stability of vascular endothelial growth factor (VEGF) in plasma samples and the influence of ovarian hyperstimulation on systemic levels of VEGF. Stability assays for VEGF in plasma samples revealed significant increases following even short incubations of samples at room temperature (< or = 2 h, p < 0.001). To investigate a possible impact of controlled ovarian hyperstimulation (COH) on peripheral VEGF levels, serial blood collection over one menstrual cycle was performed in unstimulated as well as in gonadotropin-stimulated cycles for in vitro fertilisation/embryo transfer (IVF/ET) (10 women each). Peripheral levels for VEGF were significantly higher in gonadotropin stimulated cycles as compared to non-stimulated cycles (p < 0.001). There was no significant difference between follicular phase and luteal phase levels in either group. VEGF levels tended to correlate with the number of follicles detected by vaginal sonography prior to oocyte aspiration (p = 0.051). In conclusion, VEGF levels are elevated in gonadotropin-stimulated IVF/ET cycles as compared to natural cycles.
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Affiliation(s)
- P Licht
- Division of Gynaecological Endocrinology & Reproductive Medicine, Department of Obstetrics and Gynaecology, University of Erlangen-Nürnberg, Universitätsstr. 21, D-91054 Erlangen, Germany.
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Fischer O, Mátlová L, Dvorská L, Svástová P, Bartl J, Melichárek I, Weston RT, Pavlík I. Diptera as vectors of mycobacterial infections in cattle and pigs. Med Vet Entomol 2001; 15:208-211. [PMID: 11434556 DOI: 10.1046/j.1365-2915.2001.00292.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Mycobacteria were isolated from 14 (4.5%) of 314 samples, containing 7791 adult Diptera, which were collected in the Czech Republic and Slovakia in 1997-2000. These flies were collected from three cattle herds with paratuberculosis, two pig herds with mycobacterial infections and one farm that kept both cattle and pigs and that did not have problems of mycobacterial infections. Mycobacterium intracellulare was isolated from Eristalis tenax Linnaeus (Diptera: Syrphidae) captured from a pig herd. Mycobacterium avium ssp. avium (serotype 8) was isolated from flies of the genera Drosophila Fallen (Diptera: Drosophilidae) and Musca Linnaeus (Diptera: Muscidae) originating from a pig herd. Mycobacterium spp. were isolated from Musca spp. and Mycobacterium fortuitum was isolated from dung flies of the genus Scatophaga Meigen (Diptera: Scatophagidae), Musca spp. and Stomoxys calcitrans Linnaeus (Diptera: Muscidae) captured in the same herd. Mycobacterium scrofulaceum was isolated from S. calcitrans from the farm with both cattle and pigs. Mycobacterium avium ssp. paratuberculosis was isolated from Scatophaga spp. collected from pastures grazed by one of the cattle herds and from Calliphora vicina Robineau-Desvoidy (Diptera: Calliphoridae) and Lucilia caesar Linnaeus (Diptera: Calliphoridae) captured in a slaughterhouse, where cattle infected with paratuberculosis were slaughtered. Mycobacterium phlei was isolated from flies of the genus Lucilia captured at a waste bin. These data indicate that mycobacteria may be spread by adult flies that have been in contact with material contaminated with these pathogens.
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Affiliation(s)
- O Fischer
- Veterinary Research Institute, Brno, Czech Republic.
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35
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Bongi G, Fischer O, Jones H. A phenomenological model explaining the superconducting properties of compounds with the A-15 structure. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0305-4608/4/12/001] [Citation(s) in RCA: 10] [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: 11/12/2022]
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Fischer O, Jones H, Bongi G, Sergent M, Chevrel R. Measurements of critical fields up to 500 kG in the ternary molybdenum sulphides. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3719/7/24/004] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Salluzzo M, Palomba F, Pica G, Andreone A, Maggio-Aprile I, Fischer O, Cantoni C, Norton DP. Role of Nd/Ba disorder on the penetration depth of Nd(1+x)Ba(2-x)Cu(3)O(7-delta) thin films. Phys Rev Lett 2000; 85:1116-1119. [PMID: 10991488 DOI: 10.1103/physrevlett.85.1116] [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: 12/07/1999] [Indexed: 05/23/2023]
Abstract
We report on a study on the effect of Nd/Ba disorder on the ab-plane penetration depth of epitaxial Nd(1+x)Ba(2-x)Cu(3)O(7-delta) thin films. While in stoichiometric samples lambda(T) at low temperature is linear, Nd-rich films exhibit a quadratic law. For low Nd excess (x<0.04), a satisfying fit is obtained using the "dirty" d-wave model assuming that Nd ions at Ba sites act as strong scattering centers. At high x (x>0.15) the data are explained if Nd/Ba disorder becomes less effective as a source of scattering. The effect of localization has been discussed to account for the experimental results.
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Affiliation(s)
- M Salluzzo
- INFM and Dipartimento di Scienze Fisiche, Universita di Napoli Federico II, I-80125 Napoli, Italy
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Abstract
The organs of 30 insectivorous mammals and 62 rodents from areas inhabited by people or livestock where cattle paratuberculosis or mycobacterial infections of swine had been found to occur were examined by cultivation during the monitoring of occurrence and spread of mycobacterioses in cattle and swine. Mycobacteria were found in the organs of 3 insectivores (10%) and 6 rodents (9.7%). Mycobacterium chelonae was isolated from the organs of the lesser white-toothed shrew (Crocidura suaveolens) and the common vole (Microtus arvalis), and M. vaccae and M. avium subsp. avium (IS901+, serotype 1) from the organs of the common shrew (Sorex araneus). M. avium subsp. avium (IS901+, serotype 1) was also isolated from the organs of the yellow-necked mouse (Apodemus flavicollis). Slow-growing mycobacteria of group III (according to Runyon) were isolated from the organs of the mouse (Mus musculus sensu lato) and the yellow-necked mouse (A. flavicollis). These findings had no connection with the epizootological situation in the nearby livestock. M. fortuitum was isolated from the organs of the common vole (M. arvalis) caught in a field within easy reach of a swine breeding herd. M. fortuitum was also identified in the lymph nodes and droppings of this swine herd, as well as in the straw, scrapings from the floor of stalls, troughs and banisters, as well as from larvae and imagoes of dipterous insects. These results demonstrate the possibility that insectivores and small rodents can spread the causative agents of mycobacteria in wild and domestic animals.
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Affiliation(s)
- O Fischer
- Veterinary Research Institute, 621 32 Brno, Czechia.
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Licht P, Engel N, Fischer O, Munzer B, Siebzehnrübl E, Wildt L. O-013. HCG does not directly regulate circulating concentrations of vascular endothelial growth factor in IVF and embryo transfer cycles. Hum Reprod 1997. [DOI: 10.1093/humrep/12.suppl_2.6] [Citation(s) in RCA: 2] [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: 11/12/2022] Open
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Miéville L, Koller E, Triscone J, Decroux M, Fischer O, Williams EJ. Vortex lattice dynamics in DyBa2Cu3O7/(Sr1-xCax)RuO3 multilayers. Phys Rev B Condens Matter 1996; 54:9525-9531. [PMID: 9984693 DOI: 10.1103/physrevb.54.9525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Locquet J, Jaccard Y, Cretton A, Williams EJ, Arrouy F, Mächler E, Schneider T, Fischer O, Martinoli P. Variation of the in-plane penetration depth lambda ab as a function of doping in La2-xSrxCuO4+/- delta thin films on SrTiO3: Implications for the overdoped state. Phys Rev B Condens Matter 1996; 54:7481-7488. [PMID: 9984375 DOI: 10.1103/physrevb.54.7481] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Andersson M, Fivat P, Fàbrega L, Obara H, Decroux M, Triscone J, Fischer O. Vortex solid-to-liquid transition in DyBa2Cu3O7- delta /(Y0.45Pr0.55)Ba2Cu3O7- delta multilayers. Phys Rev B Condens Matter 1996; 54:675-681. [PMID: 9984303 DOI: 10.1103/physrevb.54.675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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45
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Griessen R, Martinez JC, Fivat P, Triscone J, Fischer O. Dissipative and Hall quantum creep in YBa2Cu3O7- delta thin films. Phys Rev B Condens Matter 1996; 53:896-899. [PMID: 9983047 DOI: 10.1103/physrevb.53.896] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Maggio-Aprile I, Renner C, Erb A, Walker E, Fischer O. Direct vortex lattice imaging and tunneling spectroscopy of flux lines on YBa2Cu3O7- delta. Phys Rev Lett 1995; 75:2754-2757. [PMID: 10059396 DOI: 10.1103/physrevlett.75.2754] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Ahn CH, Triscone JM, Archibald N, Decroux M, Hammond RH, Geballe TH, Fischer O, Beasley MR. Ferroelectric Field Effect in Epitaxial Thin Film Oxide SrCuO
2
/Pb(Zr
0.52
Ti
0.48
)O
3
Heterostructures. Science 1995; 269:373-6. [PMID: 17841258 DOI: 10.1126/science.269.5222.373] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A ferroelectric field effect in epitaxial thin film SrCuO(2)/Pb(Zr(0.52)Ti(0.48))O(3) heterostructures was observed. A 3.5 percent change in the resistance of a 40 angstrom SrCuO(2) layer (a parent high-temperature superconducting compound) was measured when the polarization field of the Pb(Zr(0.52)Ti(0.48))O(3) layer was reversed by the application of a pulse of small voltage (<5 volts). This effect, both reversible and nonvolatile, is attributed to the electric field-induced charge at the interface of SrCuO(2) and Pb(Zr(0.52)Ti(0.48))O(3). This completely epitaxial thin film approach shows the possibility of making nonvolatile, low-voltage ferroelectric field effect devices for both applications and fundamental studies of field-induced doping in novel compounds like SrCuO(2).
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Obara H, Andersson M, Fàbrega L, Fivat P, Triscone J, Decroux M, Fischer O. Observation of a field induced transition in the vortex solid of DyBa2Cu3O7/(Y1-xPrx)Ba2Cu3O7 superlattices. Phys Rev Lett 1995; 74:3041-3044. [PMID: 10058088 DOI: 10.1103/physrevlett.74.3041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Renner C, Fischer O. Vacuum tunneling spectroscopy and asymmetric density of states of Bi2Sr2CaCu2O8+ delta. Phys Rev B Condens Matter 1995; 51:9208-9218. [PMID: 9977563 DOI: 10.1103/physrevb.51.9208] [Citation(s) in RCA: 110] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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50
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Triscone J, Fivat P, Andersson M, Decroux M, Fischer O. Two-dimensional and three-dimensional vortex lattice dynamics in DyBa2Cu3O7-(Y1-xPrx)Ba2Cu3O7 coupled heterostructures. Phys Rev B Condens Matter 1994; 50:1229-1236. [PMID: 9975794 DOI: 10.1103/physrevb.50.1229] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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