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Klein A, Warszawski J, Hillengaß J, Maier-Hein KH. Automatic bone segmentation in whole-body CT images. Int J Comput Assist Radiol Surg 2018; 14:21-29. [PMID: 30426400 DOI: 10.1007/s11548-018-1883-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 11/05/2018] [Indexed: 11/30/2022]
Abstract
PURPOSE Many diagnostic or treatment planning applications critically depend on the successful localization of bony structures in CT images. Manual or semiautomatic bone segmentation is tedious, however, and often not practical in clinical routine. In this paper, we present a reliable and fully automatic bone segmentation in whole-body CT scans of patients suffering from multiple myeloma. METHODS We address this problem by using convolutional neural networks with an architecture inspired by the U-Net [17]. In this publication, we compared three training procedures: (1) training from 2D axial slices, (2) a pseudo-3D approach including axial, sagittal and coronal slices and (3) an approach where the network is pre-trained in an unsupervised manner. RESULTS We evaluated the method on an in-house dataset of 18 whole-body CT scans consisting of 6800 axial slices, achieving a dice score of 0.95 and an intersection over union (IOU) of 0.91. Furthermore, we evaluated our method on the dataset used by Peréz-Carrasco et al. (Comput Methods Progr Biomed 156:85-95, 2018). The data and the ground truth have been made publicly available. The proposed method outperformed the other methods, obtaining a dice score of 0.92 and an IOU of 0.85. CONCLUSION These promising results could facilitate the evaluation of bone density and the localization of focal lesions in the future, with a potential impact on both disease staging and treatment planning.
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Klein A, Becker I, Minden K, Foeldvari I, Haas JP, Horneff G. Adalimumab versus adalimumab and methotrexate for the treatment of juvenile idiopathic arthritis: long-term data from the German BIKER registry. Scand J Rheumatol 2018; 48:95-104. [PMID: 30411654 DOI: 10.1080/03009742.2018.1488182] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Adalimumab (ADA) has become a valuable treatment option for juvenile idiopathic arthritis (JIA). The importance of combination with methotrexate (MTX) is unclear. METHOD Data from the German Biologics in Paediatric Rheumatology (BIKER) registry are reported. Response to treatment was analysed using JIA American College of Rheumatology (ACR) scores, 10-joint Juvenile Arthritis Disease Activity Score (JADAS10), and improvement of functional status and ACR inactive disease criteria. Compa-risons between rates of adverse events (AEs) and serious adverse events (SAEs) provided data for the safety assessment. RESULTS Overall, 584 patients with non-systemic JIA started ADA therapy, 61% of whom received concomitant MTX treatment at baseline. The latter patients were younger (p < 0.001), with shorter disease duration (p = 0.001), more frequently had antinuclear antibodies (p = 0.04), and had higher baseline JADAS10 scores (p = 0.03). In patients with ADA monotherapy, enthesitis-related arthritis (p = 0.004) and presence of human leucocyte antigen-B27 (p = 0.008) were documented more often. Mean treatment duration in both cohorts was 15 months. Comparable last follow-up rates for JIA ACR 30/50/70/90% response, JADAS minimal disease activity, JADAS remission, and ACR inactive disease were, respectively, 75/72/64/49%, 66%, 46%, and 58% for ADA monotherapy, and 77/72/61/45%, 64%, 48%, and 55%, for ADA + MTX. During 1082 patient-years (PY) of ADA exposure, 725 AEs (67/100 PY), including 57 SAEs (5.3/100 PY), were reported. Serious infections were reported in 10 patients (0.9/100 PY) and 11 (1.0/100 PY) had varicella infections/zoster reactivation. Rates of AEs, SAEs, infectious events, and serious infections did not differ between the cohorts. Elevated transaminases (p = 0.005) and gastrointestinal events (p < 0.0001) were reported more often in the combination cohort. Two pregnancies and no deaths were reported. CONCLUSION ADA demonstrated an acceptable risk profile and high percentages of patients in both cohorts showed sufficient treatment response. No differences in treatment response or adherence to treatment were found.
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Klein A, Hank S, Raulf A, Joest EF, Tissen F, Heilemann M, Wieneke R, Tampé R. Live-cell labeling of endogenous proteins with nanometer precision by transduced nanobodies. Chem Sci 2018; 9:7835-7842. [PMID: 30429993 PMCID: PMC6194584 DOI: 10.1039/c8sc02910e] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/20/2018] [Indexed: 11/21/2022] Open
Abstract
Accurate labeling of endogenous proteins for advanced light microscopy in living cells remains challenging. Nanobodies have been widely used for antigen labeling, visualization of subcellular protein localization and interactions. To facilitate an expanded application, we present a scalable and high-throughput strategy to simultaneously target multiple endogenous proteins in living cells with micro- to nanometer resolution. For intracellular protein labeling, we advanced nanobodies by site-specific and stoichiometric attachment of bright organic fluorophores. Their fast and fine-tuned intracellular transfer by microfluidic cell squeezing enabled high-throughput delivery with less than 10% dead cells. This strategy allowed for the dual-color imaging of distinct endogenous cellular structures, and culminated in super-resolution imaging of native protein networks in genetically non-modified living cells. The simultaneous delivery of multiple engineered nanobodies does not only offer exciting prospects for multiplexed imaging of endogenous protein, but also holds potential for visualizing native cellular structures with unprecedented accuracy.
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Houdou M, Lebredonchel E, Garat A, Duvet S, Legrand D, Decool V, Klein A, Ouzzine M, Gasnier B, Potelle S, Foulquier F. Involvement of thapsigargin- and cyclopiazonic acid-sensitive pumps in the rescue of TMEM165-associated glycosylation defects by Mn 2. FASEB J 2018; 33:2669-2679. [PMID: 30307768 DOI: 10.1096/fj.201800387r] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Congenital disorders of glycosylation are severe inherited diseases in which aberrant protein glycosylation is a hallmark. Transmembrane protein 165 (TMEM165) is a novel Golgi transmembrane protein involved in type II congenital disorders of glycosylation. Although its biologic function is still a controversial issue, we have demonstrated that the Golgi glycosylation defect due to TMEM165 deficiency resulted from a Golgi Mn2+ homeostasis defect. The goal of this study was to delineate the cellular pathway by which extracellular Mn2+ rescues N-glycosylation in TMEM165 knockout (KO) cells. We first demonstrated that after extracellular exposure, Mn2+ uptake by HEK293 cells at the plasma membrane did not rely on endocytosis but was likely done by plasma membrane transporters. Second, we showed that the secretory pathway Ca2+-ATPase 1, also known to mediate the influx of cytosolic Mn2+ into the lumen of the Golgi apparatus, is not crucial for the Mn2+-induced rescue glycosylation of lysosomal-associated membrane protein 2 (LAMP2). In contrast, our results demonstrate the involvement of cyclopiazonic acid- and thapsigargin (Tg)-sensitive pumps in the rescue of TMEM165-associated glycosylation defects by Mn2+. Interestingly, overexpression of sarco/endoplasmic reticulum Ca2+-ATPase (SERCA) 2b isoform in TMEM165 KO cells partially rescues the observed LAMP2 glycosylation defect. Overall, this study indicates that the rescue of Golgi N-glycosylation defects in TMEM165 KO cells by extracellular Mn2+ involves the activity of Tg and cyclopiazonic acid-sensitive pumps, probably the SERCA pumps.-Houdou, M., Lebredonchel, E., Garat, A., Duvet, S., Legrand, D., Decool, V., Klein, A., Ouzzine, M., Gasnier, B., Potelle, S., Foulquier, F. Involvement of thapsigargin- and cyclopiazonic acid-sensitive pumps in the rescue of TMEM165-associated glycosylation defects by Mn2+.
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Pecks U, Segger L, Bornemann V, Klein A, Maass N, Eckmann-Scholz C, Rath W, Lütjohann D. Modellierung der Cholesterin-Syntheserate bei Cholesterin-Deprivation im IUGR Feten. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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81
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Kletzl H, Czech C, Cleary Y, Sturm S, Günther A, Baranello G, Mercuri E, Servais L, Day J, Deconinck N, Klein A, Darras B, Masson R, Kirschner J, Goemans N, Pera M, Chiriboga C, Fischer D, Gorni K, Khwaja O. SMA THERAPIES II AND BIOMARKERS. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Baranello G, Servais L, Day J, Deconinck N, Mercuri E, Klein A, Darras B, Masson R, Kletzl H, Cleary Y, Armstrong G, Seabrook T, Czech C, Gerber M, Gelblin K, Gorni K, Khwaja O. SMA THERAPIES II AND BIOMARKERS. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Tan Z, Valchanov K, Klein A. Complications in aortic surgery: are CSF drains to be blamed? Comment on Br J Anaesth 2018; 120: 904-913. Br J Anaesth 2018; 121:987. [PMID: 30236274 DOI: 10.1016/j.bja.2018.07.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/13/2018] [Accepted: 07/24/2018] [Indexed: 10/28/2022] Open
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Cohen EO, Hen O, Piasetzky E, Weinstein LB, Duer M, Schmidt A, Korover I, Hakobyan H, Adhikari S, Akbar Z, Amaryan MJ, Avakian H, Ball J, Barion L, Battaglieri M, Beck A, Bedlinskiy I, Biselli AS, Boiarinov S, Briscoe W, Burkert VD, Cao F, Carman DS, Celentano A, Charles G, Chatagnon P, Chetry T, Ciullo G, Clary BA, Contalbrigo M, Crede V, Cruz Torres R, D'Angelo A, Dashyan N, De Vita R, De Sanctis E, Defurne M, Deur A, Diehl S, Djalali C, Duer M, Dupre R, Egiyan H, Ehrhart M, El Alaoui A, Fassi LE, Eugenio P, Fedotov G, Fersch R, Filippi A, Ghandilyan Y, Giovanetti KL, Girod FX, Golovatch E, Gothe RW, Griffioen KA, Hafidi K, Harrison N, Hauenstein F, Heddle D, Hicks K, Holtrop M, Ireland DG, Ishkhanov BS, Isupov EL, Jenkins D, Jo HS, Johnston S, Kabir ML, Keller D, Khachatryan G, Khachatryan M, Khandaker M, Kim A, Kim W, Klein A, Klein FJ, Korover I, Kubarovsky V, Kuhn SE, Lanza L, Lenisa P, Livingston K, MacGregor IJD, Marchand D, McKinnon B, Mey-Tal Beck S, Meyer CA, Mirazita M, Mokeev V, Montgomery RA, Movsisyan A, Munoz Camacho C, Mustapha B, Nadel-Turonski P, Niccolai S, Niculescu G, Osipenko M, Ostrovidov AI, Paolone M, Paremuzyan R, Pasyuk E, Pogorelko O, Price JW, Prok Y, Protopopescu D, Ripani M, Riser D, Rizzo A, Rosner G, Rossi P, Sabatié F, Schmookler BA, Schumacher RA, Sharabian YG, Sokhan D, Sparveris N, Stepanyan S, Strauch S, Taiuti M, Tan JA, Ungaro M, Voskanyan H, Voutier E, Wang R, Watts DP, Wei X, Wood MH, Zachariou N, Zhang J, Zheng X, Zhao ZW. Center of Mass Motion of Short-Range Correlated Nucleon Pairs studied via the A(e,e^{'}pp) Reaction. PHYSICAL REVIEW LETTERS 2018; 121:092501. [PMID: 30230869 DOI: 10.1103/physrevlett.121.092501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 06/08/2023]
Abstract
Short-range correlated (SRC) nucleon pairs are a vital part of the nucleus, accounting for almost all nucleons with momentum greater than the Fermi momentum (k_{F}). A fundamental characteristic of SRC pairs is having large relative momenta as compared to k_{F}, and smaller center of mass (c.m.) which indicates a small separation distance between the nucleons in the pair. Determining the c.m. momentum distribution of SRC pairs is essential for understanding their formation process. We report here on the extraction of the c.m. motion of proton-proton (pp) SRC pairs in carbon and, for the first time in heavier and ansymetric nuclei: aluminum, iron, and lead, from measurements of the A(e,e^{'}pp) reaction. We find that the pair c.m. motion for these nuclei can be described by a three-dimensional Gaussian with a narrow width ranging from 140 to 170 MeV/c, approximately consistent with the sum of two mean-field nucleon momenta. Comparison with calculations appears to show that the SRC pairs are formed from mean-field nucleons in specific quantum states.
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Sato K, Kumar A, Ala C, Ahuja K, Verma B, Xu B, Klein A. P694Higher inflammation and recovery of tissue Doppler velocity ratio predicts resolution of constrictive pericarditis by anti-inflammatory medications. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ayala Valani L, Al Baridi E, Rivera S, Brambilla CH, Brahim Y, Klein A, Coluccini P, Compagno P, Etchepare R, Badra M, Dussault CH, Roux JF, Ayala Paredes F. P6646Real life EP lab without fluoroscopy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Mahar J, Abdallah M, Abdur Rehman K, Banerjee K, Alkharabsheh S, Horr S, Majdalany D, Klein A. P693Anticoagulation and cardiac tamponade among patients with pericardial effusion. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shavit I, Jacob R, Friedman N, Capua T, Klein A, Chistyakov I, Moldaver I, Krupik D, Munchak I, Abozaid S, Rimon A, Meirson G, Leiba R, Cohen DM. Effect of patient and nurse ethnicity on emergency department analgesia for children with appendicitis in israeli government hospitals. Eur J Pain 2018; 22:1711-1717. [PMID: 29883525 DOI: 10.1002/ejp.1257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Ethnicity is a risk factor for disparate Emergency Department (ED) analgesia. We aimed to explore ethnic variations in the administration of ED analgesia to children with acute appendicitis in Israeli government hospitals. METHODS Children discharged with an International Classification of Disease-Ninth Revision diagnosis of acute appendicitis between 2010 and 2015 were included. The association between patient ethnicity (Jewish, Arab) and analgesia administration (any, opioid) was assessed. Age, gender, triage category, pain score and time of arrival were tested as possible confounders. The effect of patient-nurse ethnic discordance (PNED) was examined. RESULTS Overall, 4714 children with acute appendicitis, 3520 Jewish and 1194 Arab, were cared for in the EDs; 1516 (32.2%) received any analgesia and 368 (7.8%) opioid analgesia. Stratified by pain score, no statistical differences were found in the administration of any or opioid analgesia between Jewish and Arab patients with either severe pain or moderate pain. In multivariate modelling adjusted for pain score and triage category, the rates of any analgesia for Arab and Jewish patients were 31.8% (95% CI, 30.9-32.6) and 36.5% (95% CI, 36.0-36.9), adjusted OR (aOR) = 1.16 (95% CI, 0.98-1.38), respectively. The rates of opioid analgesia for Arab and Jewish patients were 8.5% (95% CI, 8.2-8.9) and 7.9% (95% CI, 7.3-8.7), aOR = 0.77; (95% CI, 0.59-1.22), respectively. Jewish and Arab nurses treated proportionally fewer patients from the opposite ethnicity with any analgesia (p < 0.01). CONCLUSION Emergency Department analgesia was markedly low, and not associated with patient ethnicity. PNED was associated with decreased rates of analgesia. SIGNIFICANCE Emergency Department analgesia for children with acute appendicitis in Israeli government hospitals is markedly low. Patient-provider ethnic discordance may negatively influence the provision of analgesia. Significant efforts should be undertaken in order to increase analgesia provision rates and reduce social inequality.
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Pecks U, Segger L, Bornemann V, Klein A, Maass N, Eckmann-Scholz C, Rath W, Lütjohann D. Modellierung der Cholesterin-Syntheserate bei Cholesterin-Deprivation im IUGR Feten. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1660601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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90
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Abbott T, Fowler A, Pelosi P, Gama de Abreu M, Møller A, Canet J, Creagh-Brown B, Mythen M, Gin T, Lalu M, Futier E, Grocott M, Schultz M, Pearse R, Myles P, Gan T, Kurz A, Peyton P, Sessler D, Tramèr M, Cyna A, De Oliveira G, Wu C, Jensen M, Kehlet H, Botti M, Boney O, Haller G, Grocott M, Cook T, Fleisher L, Neuman M, Story D, Gruen R, Bampoe S, Evered L, Scott D, Silbert B, van Dijk D, Kalkman C, Chan M, Grocott H, Eckenhoff R, Rasmussen L, Eriksson L, Beattie S, Wijeysundera D, Landoni G, Leslie K, Biccard B, Howell S, Nagele P, Richards T, Lamy A, Gabreu M, Klein A, Corcoran T, Jamie Cooper D, Dieleman S, Diouf E, McIlroy D, Bellomo R, Shaw A, Prowle J, Karkouti K, Billings J, Mazer D, Jayarajah M, Murphy M, Bartoszko J, Sneyd R, Morris S, George R, Moonesinghe R, Shulman M, Lane-Fall M, Nilsson U, Stevenson N, van Klei W, Cabrini L, Miller T, Pace N, Jackson S, Buggy D, Short T, Riedel B, Gottumukkala V, Alkhaffaf B, Johnson M. A systematic review and consensus definitions for standardised end-points in perioperative medicine: pulmonary complications. Br J Anaesth 2018; 120:1066-1079. [DOI: 10.1016/j.bja.2018.02.007] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/01/2018] [Accepted: 02/12/2018] [Indexed: 02/02/2023] Open
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Wu G, Kim I, Chai N, Jordon S, Klein A. Cell Kinetics of Blood Circulating CD38+/CD138+ Plasma Cells During the Development of De Novo Donor Specific Antibody Responses. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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92
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Adhikari KP, Deur A, El Fassi L, Kang H, Kuhn SE, Ripani M, Slifer K, Zheng X, Adhikari S, Akbar Z, Amaryan MJ, Avakian H, Ball J, Balossino I, Barion L, Battaglieri M, Bedlinskiy I, Biselli AS, Bosted P, Briscoe WJ, Brock J, Bültmann S, Burkert VD, Thanh Cao F, Carlin C, Carman DS, Celentano A, Charles G, Chen JP, Chetry T, Choi S, Ciullo G, Clark L, Cole PL, Contalbrigo M, Crede V, D'Angelo A, Dashyan N, De Vita R, De Sanctis E, Defurne M, Djalali C, Dodge GE, Drozdov V, Dupre R, Egiyan H, El Alaoui A, Elouadrhiri L, Eugenio P, Fedotov G, Filippi A, Ghandilyan Y, Gilfoyle GP, Golovatch E, Gothe RW, Griffioen KA, Guidal M, Guler N, Guo L, Hafidi K, Hakobyan H, Hanretty C, Harrison N, Hattawy M, Heddle D, Hicks K, Holtrop M, Hyde CE, Ilieva Y, Ireland DG, Isupov EL, Jenkins D, Jo HS, Johnston SC, Joo K, Joosten S, Kabir ML, Keith CD, Keller D, Khachatryan G, Khachatryan M, Khandaker M, Kim W, Klein A, Klein FJ, Konczykowski P, Kovacs K, Kubarovsky V, Lanza L, Lenisa P, Livingston K, Long E, MacGregor IJD, Markov N, Mayer M, McKinnon B, Meekins DG, Meyer CA, Mineeva T, Mirazita M, Mokeev V, Movsisyan A, Munoz Camacho C, Nadel-Turonski P, Niculescu G, Niccolai S, Osipenko M, Ostrovidov AI, Paolone M, Pappalardo L, Paremuzyan R, Park K, Pasyuk E, Payette D, Phelps W, Phillips SK, Pierce J, Pogorelko O, Poudel J, Price JW, Prok Y, Protopopescu D, Raue BA, Rizzo A, Rosner G, Rossi P, Sabatié F, Salgado C, Schumacher RA, Sharabian YG, Shigeyuki T, Simonyan A, Skorodumina I, Smith GD, Sparveris N, Sokhan D, Stepanyan S, Strakovsky II, Strauch S, Sulkosky V, Taiuti M, Tan JA, Ungaro M, Voutier E, Wei X, Weinstein LB, Zhang J, Zhao ZW. Measurement of the Q^{2} Dependence of the Deuteron Spin Structure Function g_{1} and its Moments at Low Q^{2} with CLAS. PHYSICAL REVIEW LETTERS 2018; 120:062501. [PMID: 29481214 DOI: 10.1103/physrevlett.120.062501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/05/2017] [Indexed: 06/08/2023]
Abstract
We measured the g_{1} spin structure function of the deuteron at low Q^{2}, where QCD can be approximated with chiral perturbation theory (χPT). The data cover the resonance region, up to an invariant mass of W≈1.9 GeV. The generalized Gerasimov-Drell-Hearn sum, the moment Γ_{1}^{d} and the spin polarizability γ_{0}^{d} are precisely determined down to a minimum Q^{2} of 0.02 GeV^{2} for the first time, about 2.5 times lower than that of previous data. We compare them to several χPT calculations and models. These results are the first in a program of benchmark measurements of polarization observables in the χPT domain.
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Klein A, Rohde A, Aretz S. Schuld oder Schicksal? – Kognitive Strategien von Mutationsträgerinnen für den erblichen Darmkrebs (HNPCC) im Umgang mit Kinderwunsch und Vererbungsrisiko. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1622762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Lepper J, Klein A, Hocke A, Plieger T. Risikofaktoren postpartaler Depressionen: Der Einfluss des Oxytocinrezeptorpolymorphismus rs2268498 auf mütterliche Depressivität und Bindung. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1622752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Massacrier L, Anselmino M, Arnaldi R, Brodsky S, Chambert V, Da Silva C, Didelez J, Echevarria M, Ferreiro E, Fleuret F, Gao Y, Genolini B, Hadjidakis C, Hřivnáčová I, Kikola D, Klein A, Kurepin A, Kusina A, Lansberg J, Lorcé C, Lyonnet F, Martinez G, Nass A, Pisano C, Robbe P, Schienbein I, Schlegel M, Scomparin E, Seixas J, Shao H, Signori A, Steffens E, Szymanowski L, Topilskaya N, Trzeciak B, Uggerhøj U, Uras A, Ulrich R, Wagner J, Yamanaka N, Yang Z. Physics perspectives with AFTER@LHC (A Fixed Target ExpeRiment at LHC). EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201817110001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
AFTER@LHC is an ambitious fixed-target project in order to address open questions in the domain of proton and neutron spins, Quark Gluon Plasma and high-x physics, at the highest energy ever reached in the fixed-target mode. Indeed, thanks to the highly energetic 7 TeV proton and 2.76 A.TeV lead LHC beams, center-of-mass energies as large as [see formula in PDF] = 115 GeV in pp/pA and [see formula in PDF] = 72 GeV in AA can be reached, corresponding to an uncharted energy domain between SPS and RHIC. We report two main ways of performing fixed-target collisions at the LHC, both allowing for the usage of one of the existing LHC experiments. In these proceedings, after discussing the projected luminosities considered for one year of data taking at the LHC, we will present a selection of projections for light and heavy-flavour production.
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Kashiwaya S, Aymonier C, Majimel J, Olivier C, Klein A, Jaegermann W, Toupance T. Supercritical CO2-assisted deposition of NiO on (101)-anatase-TiO2 for efficient facet engineered photocatalysts. NEW J CHEM 2018. [DOI: 10.1039/c8nj04292f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deposition of NiO on the (101) facet of anatase nanocrystals by the SFCD route yields nanocomposites more efficient than pure anatase TiO2 for the photodecomposition of both anionic and cationic dyes.
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Hattawy M, Baltzell NA, Dupré R, Hafidi K, Stepanyan S, Bültmann S, De Vita R, El Alaoui A, El Fassi L, Egiyan H, Girod FX, Guidal M, Jenkins D, Liuti S, Perrin Y, Torayev B, Voutier E, Adhikari KP, Adhikari S, Adikaram D, Akbar Z, Amaryan MJ, Anefalos Pereira S, Armstrong WR, Avakian H, Ball J, Bashkanov M, Battaglieri M, Batourine V, Bedlinskiy I, Biselli AS, Boiarinov S, Briscoe WJ, Brooks WK, Burkert VD, Thanh Cao F, Carman DS, Celentano A, Charles G, Chetry T, Ciullo G, Clark L, Colaneri L, Cole PL, Contalbrigo M, Cortes O, Crede V, D'Angelo A, Dashyan N, De Sanctis E, Deur A, Djalali C, Elouadrhiri L, Eugenio P, Fedotov G, Fegan S, Fersch R, Filippi A, Fleming JA, Forest TA, Fradi A, Garçon M, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Gleason C, Gohn W, Golovatch E, Gothe RW, Griffioen KA, Guo L, Hakobyan H, Hanretty C, Harrison N, Heddle D, Hicks K, Holtrop M, Hughes SM, Ireland DG, Ishkhanov BS, Isupov EL, Jiang H, Joo K, Joosten S, Keller D, Khachatryan G, Khachatryan M, Khandaker M, Kim A, Kim W, Klein A, Klein FJ, Kubarovsky V, Kuhn SE, Kuleshov SV, Lanza L, Lenisa P, Livingston K, Lu HY, MacGregor IJD, Markov N, Mayer M, McCracken ME, McKinnon B, Meyer CA, Meziani ZE, Mineeva T, Mirazita M, Mokeev V, Montgomery RA, Moutarde H, Movsisyan A, Munoz Camacho C, Nadel-Turonski P, Net LA, Niccolai S, Niculescu G, Niculescu I, Osipenko M, Ostrovidov AI, Paolone M, Paremuzyan R, Park K, Pasyuk E, Phelps E, Phelps W, Pisano S, Pogorelko O, Price JW, Prok Y, Protopopescu D, Ripani M, Ritchie BG, Rizzo A, Rosner G, Rossi P, Sabatié F, Salgado C, Schumacher RA, Seder E, Sharabian YG, Simonyan A, Skorodumina I, Smith GD, Sokhan D, Sparveris N, Strauch S, Taiuti M, Ungaro M, Voskanyan H, Walford NK, Watts DP, Wei X, Weinstein LB, Wood MH, Zachariou N, Zana L, Zhang J, Zhao ZW. First Exclusive Measurement of Deeply Virtual Compton Scattering off ^{4}He: Toward the 3D Tomography of Nuclei. PHYSICAL REVIEW LETTERS 2017; 119:202004. [PMID: 29219329 DOI: 10.1103/physrevlett.119.202004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Indexed: 06/07/2023]
Abstract
We report on the first measurement of the beam-spin asymmetry in the exclusive process of coherent deeply virtual Compton scattering off a nucleus. The experiment uses the 6 GeV electron beam from the Continuous Electron Beam Accelerator Facility (CEBAF) accelerator at Jefferson Lab incident on a pressurized ^{4}He gaseous target placed in front of the CEBAF Large Acceptance Spectrometer (CLAS). The scattered electron is detected by CLAS and the photon by a dedicated electromagnetic calorimeter at forward angles. To ensure the exclusivity of the process, a specially designed radial time projection chamber is used to detect the recoiling ^{4}He nuclei. We measure beam-spin asymmetries larger than those observed on the free proton in the same kinematic domain. From these, we are able to extract, in a model-independent way, the real and imaginary parts of the only ^{4}He Compton form factor, H_{A}. This first measurement of coherent deeply virtual Compton scattering on the ^{4}He nucleus, with a fully exclusive final state via nuclear recoil tagging, leads the way toward 3D imaging of the partonic structure of nuclei.
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Bloetzer C, Jacquier D, Klein A, Ivanyuk A, Segarra NG. Myoglobinuria in two patients with Duchenne muscular dystrophy after treatment with zoledronate: a case-report and call for caution. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Veloso CC, Ferreira RCM, Rodrigues VG, Duarte LP, Klein A, Duarte ID, Romero TRL, Perez AC. Tingenone, a pentacyclic triterpene, induces peripheral antinociception due to cannabinoid receptors activation in mice. Inflammopharmacology 2017; 26:227-233. [DOI: 10.1007/s10787-017-0391-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/23/2017] [Indexed: 01/24/2023]
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Sze DK, Jung J, Cheng ET, Piet S, Klein A. Conceptual Design of A Self-Cooled FLiBe Blanket. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst86-a24813] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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