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| 1 | Corrosion resistance of in-situ growth of nano-sized Mg(OH)2 on micro-arc oxidized magnesium alloy AZ31—Influence of EDTA显示文摘One of the major obstacles for the clinical use of biodegradable magnesium(Mg)-based materials is their high corrosion rate. Micro-arc oxidation(MAO) coatings on Mg alloys provide mild corrosion protection owing to their porous structure. Hence, in this study a dense Mg(OH)2 film was fabricated on MAO-coated Mg alloy AZ31 in an alkaline electrolyte containing ethylenediamine tetraacetic acid disodium(EDTA-2 Na) to reinforce the protection. Surface morphology, chemical composition and growth process of the MAO/Mg(OH)2 hybrid coating were examined using field-emission scanning electron microscopy, energy dispersive X-ray spectrometer, X-ray diffraction, X-ray photoelectron spectroscopy and Fourier transform infrared spectrophotometer. Corrosion resistance of the coatings was evaluated via potentiodynamic polarization curves and hydrogen evolution tests. Results manifested that the Mg(OH)2 coating possesses a porous nano-sized structure and completely seals the micro-pores and micro-cracks of the MAO coating.The intermetallic compound of AlMn phase in the substrate plays a key role in the growth of Mg(OH)2 film. The current density of Mg(OH)2-MAO composite coating decreases three orders of magnitude in comparison with that of bare substrate, indicating excellent corrosion resistance. The Mg(OH)2-MAO composite coating is beneficial to the formation of calcium phosphate corrosion products on the surface of Mg alloy AZ31, demonstrating a great promise for orthopaedic applications. | Chang-Yang Li Xiao-Li Fan Rong-Chang Zeng Lan-Yue Cui Shuo-Qi Li Fen Zhang Qing-Kun He M. Bobby Kannan Hong-Wei (George) Jiang Dong-Chu Chen Shao-Kang Guan | 2019 | Journal of Materials Science & Technology2019，35，6： | 16 |
| 2 | Deep learning analysis of defect and phase evolution during electron beam-induced transformations in WS_(2)显示文摘Recent advances in scanning transmission electron microscopy(STEM)allow the real-time visualization of solid-state transformations in materials,including those induced by an electron beam and temperature,with atomic resolution.However,despite the ever-expanding capabilities for high-resolution data acquisition,the inferred information about kinetics and thermodynamics of the process,and single defect dynamics and interactions is minimal.This is due to the inherent limitations of manual ex situ analysis of the collected volumes of data.To circumvent this problem,we developed a deep-learning framework for dynamic STEM imaging that is trained to find the lattice defects and apply it for mapping solid state reactions and transformations in layered WS_(2).The trained deep-learning model allows extracting thousands of lattice defects from raw STEM data in a matter of seconds,which are then classified into different categories using unsupervised clustering methods.We further expanded our framework to extract parameters of diffusion for sulfur vacancies and analyzed transition probabilities associated with switching between different configurations of defect complexes consisting of Mo dopant and sulfur vacancy,providing insight into pointdefect dynamics and reactions.This approach is universal and its application to beam-induced reactions allows mapping chemical transformation pathways in solids at the atomic level. | Artem Maksov Ondrej Dyck Kai Wang Kai Xiao David B.Geohegan Bobby G.Sumpter Rama K.Vasudevan Stephen Jesse Sergei V.Kalinin Maxim Ziatdinov | 2019 | npj Computational Materials2019，，1： | 11 |
| 3 | The joint automated repository for various integrated simulations (JARVIS) for data-driven materials design显示文摘The Joint Automated Repository for Various Integrated Simulations(JARVIS)is an integrated infrastructure to accelerate materials discovery and design using density functional theory(DFT),classical force-fields(FF),and machine learning(ML)techniques.JARVIS is motivated by the Materials Genome Initiative(MGI)principles of developing open-access databases and tools to reduce the cost and development time of materials discovery,optimization,and deployment. | Kamal Choudhary Kevin F.Garrity Andrew C.E.Reid Brian DeCost Adam J.Biacchi Angela R.Hight Walker Zachary Trautt Jason Hattrick-Simpers A.Gilad Kusne Andrea Centrone Albert Davydov Jie Jiang Ruth Pachter Gowoon Cheon Evan Reed Ankit Agrawal Xiaofeng Qian Vinit Sharma Houlong Zhuang Sergei V.Kalinin Bobby G.Sumpter Ghanshyam Pilania Pinar Acar Subhasish Mandal Kristjan Haule David Vanderbilt Karin Rabe Francesca Tavazza | 2020 | npj Computational Materials2020，，1： | 10 |
| 4 | 术后疼痛及应激反应的心理干预研究进展显示文摘术后疼痛是临床最常见和最急需解决的问题之一。剧烈的术后疼痛不仅会给患者带来巨大的痛苦与不适,还会引起机体强烈的应激反应。应激反应是指当机体受到各种有害刺激时,发生的以下丘脑一腺垂体一肾上腺皮质轴活动增强为主的非特异性反应。适度的应激可以提高机体对手术的耐受力,而过度的应激反应会降低机体免疫力,延缓伤口愈合,影响身心康复,甚至造成后遗症。因此,控制术后疼痛不仅旨在减轻患者的痛苦,还应减轻机体的应激反应,提高患者围手术期的安全性和自身防御并发症的能力。 | Bobby Thapa 梁敉宁 李乐之 张慧琳 | 2014 | 当代护士(下旬刊)2014，21，2： | 8 |
| 5 | Systematic review of the prevalence and development of osteoporosis or low bone mineral density and its risk factors in patients with inflammatory bowel disease显示文摘BACKGROUND The inflammatory bowel diseases(IBD),Crohn’s disease(CD)and ulcerative colitis(UC)are chronic,immune-mediated disorders of the digestive tract.IBD is considered to be a risk factor for developing osteoporosis;however current literature on this matter is inconsistent.AIM To assess prevalence and development of osteoporosis and low bone mineral density(BMD),and its risk factors,in IBD patients.METHODS Systematic review of population-based studies.Studies were identified by electronic(January 2018)and manual searches(May 2018).Databases searched included EMBASE and PubMed and abstracts from 2014-2018 presented at the United European Gastroenterology Week,the European Crohn’s and Colitis Organisation congress,and Digestive Disease Week were screened.Studies were eligible for inclusion if they investigated either the prevalence of osteoporosis or osteopenia and/or risk factors for osteoporosis or low BMD in IBD patients.Studies on children under the age of 18 were excluded.Only population-based studies were included.All risk factors for osteoporosis and low BMD investigated in any included article were considered.Study quality and the possibility of bias were analysed using the Newcastle-Ottawa scale.RESULTS Twelve studies including 3661 IBD patients and 12789 healthy controls were included.Prevalence of osteoporosis varied between 4%-9%in studies including both CD and UC patients;2%-9% in studies including UC patients, and 7%-15% instudies including CD patients. Among healthy controls, prevalence ofosteoporosis was 3% and 10% in two studies. CD diagnosis, lower body massindex (BMI), and lower body weight were risk factors associated withosteoporosis or low BMD. Findings regarding gender showed inconsistent results.CD patients had an increased risk for osteoporosis or low BMD over time, whileUC patients did not. Increased age was associated with decreased BMD, and therewas a positive association between weight and BMI and BMD over time. Greatheterogeneity was found in the included studies in terms of study methodologies,definitions and the assessment of osteoporosis, and only a small number ofpopulation-based studies was available.CONCLUSIONThis systematic review found a possible increase of prevalence of osteoporosis inCD cohorts when compared to UC and cohorts including both disease types.Lower weight and lower BMI were predictors of osteoporosis or low BMD in IBDpatients. The results varied considerably between studies. | Sofia Kärnsund Bobby Lo Flemming Bendtsen Jakob Holm Johan Burisch | 2020 | World Journal of Gastroenterology2020，26，35： | 8 |
| 6 | 超级电容器简介显示文摘 | Bobby Maher | 2006 | 今日电子2006，，1： | 6 |
| 7 | The status of Nrf2-based therapeutics: current perspectives and future prospects显示文摘This mini-review presents the authors' vision on the current status and future trends in the development of neuroprotective agents working via activation of nuclear factor erythroid 2-related factor 2(Nrf2),and in particular,via disruption of Nrf2-Keapl interaction.There are two opposite 'chemical' mechanisms underlying such activation:the first one is a non-specific covalent modification of Keap1 thiols,resulting in side effects of varied severity,and the second one is the shift of the Nrf2-Kelch-like ECH associated protein-1(Keap1) binding equilibrium in the presence of a competitive and chemically benign displacement agent.At this point,no displacement activators exhibit sufficient biological activity in comparison with common Nrf2 activators working via Keapl thiol modification.Hence,the hope in therapeutics is now linked to the FDA approved dimethylfumarate,whose derivative,monomethylfumarate,as we demonstrated recently,is much less toxic but equally biologically potent and an ideal candidate for clinical trials right now.A newly emerging player is a nuclear inhibitor of Nrf2,BTB domain and CNC homolog 1(Bach1).The commercially developed Bachl inhibitors are currently under investigation in our laboratory showing promising results.In our viewpoint,the perfect future drug will present the combination of a displacement activator and Bachl inhibitor to insure safety and efficiency of Nrf2 activation. | Irina G. Gazaryan Bobby Thomas | 2016 | Neural Regeneration Research2016，11，11： | 6 |
| 8 | Theoretical investigations of electrical transport properties in CoSb3 skutterudites under hydrostatic loadings显示文摘CoSb_3-based skutterudites have been a benchmark mid-temperature thermoelectric material under intensive experimental and theoretical studies for decades.Doping and filling, to the first order, alter the crystal lattice constant of CoSb3 in the context of 'chemical pressure.' In this work, we employed ab initio density functional theory in conjunction with semiclassical Boltzmann transport theory to investigate the mechanical properties and especially how hydrostatic loadings, i.e., 'physical pressure,' impact the electronic band structure, Seebeck coefficient,and power factor of pristine CoSb_3. It is found that hydrostatic pressure enlarges the band gap, suppresses the density of states(DOS) near the valence band edge, and fosters the band convergence between the valley bands and the conduction band minimum(CBM). By contrast,hydrostatic tensile reduces the band gap, increases the DOS near the valence band edge, and diminishes the valley bands near the CBM. Therefore, applying hydrostatic pressure provides an alternative avenue for achieving band convergence to improve thermoelectric properties of N-type CoSb3, which is further supported by our carrier concentration studies. These results provide valuable insight into the further improvement of thermoelectric performance of CoSb3-based skutterudites via a synergy of physical and chemical pressures. | Chongze Hu Peter Ni Li Zhan Huijuan Zhao Jian He Terry M. Tritt Jingsong Huang Bobby G. Sumpter | 2018 | Rare Metals2018，37，4： | 5 |
| 9 | 正常高值血压者心脏迷走神经调节、氧化应激和心血管疾病危险因素的横断面研究显示文摘高血压是心血管疾病的可控危险因素之一,与氧化应激增强和心脏迷走神经调节减弱相关。同样,正常高值血压也与心血管事件的风险增加相关。该研究探索正常高值血压和心脏迷走神经调节、氧化应激及心血管危险因素之间的相关性。 | Thiyagarajan R Pal P Pal GK Subramanian SK Bobby Z Das AK Trakroo M 罗冬梅 叶鹏 | 2013 | 中华高血压杂志2013，21，9： | 5 |
| 10 | Benchmarking graph neural networks for materials chemistry显示文摘Graph neural networks(GNNs)have received intense interest as a rapidly expanding class of machine learning models remarkably well-suited for materials applications.To date,a number of successful GNNs have been proposed and demonstrated for systems ranging from crystal stability to electronic property prediction and to surface chemistry and heterogeneous catalysis.However,a consistent benchmark of these models remains lacking,hindering the development and consistent evaluation of new models in the materials field.Here,we present a workflow and testing platform,MatDeepLearn,for quickly and reproducibly assessing and comparing GNNs and other machine learning models.We use this platform to optimize and evaluate a selection of top performing GNNs on several representative datasets in computational materials chemistry.From our investigations we note the importance of hyperparameter selection and find roughly similar performances for the top models once optimized.We identify several strengths in GNNs over conventional models in cases with compositionally diverse datasets and in its overall flexibility with respect to inputs,due to learned rather than defined representations.Meanwhile several weaknesses of GNNs are also observed including high data requirements,and suggestions for further improvement for applications in materials chemistry are discussed. | Victor Fung Jiaxin Zhang Eric Juarez Bobby G.Sumpter | 2021 | npj Computational Materials2021，，1： | 5 |
| 11 | Role of artificial intelligence in hepatobiliary and pancreatic surgery显示文摘Over the past decade,enhanced preoperative imaging and visualization,improved delineation of the complex anatomical structures of the liver and pancreas,and intra-operative technological advances have helped deliver the liver and pancreatic surgery with increased safety and better postoperative outcomes.Artificial intelligence(AI)has a major role to play in 3D visualization,virtual simulation,augmented reality that helps in the training of surgeons and the future delivery of conventional,laparoscopic,and robotic hepatobiliary and pancreatic(HPB)surgery;artificial neural networks and machine learning has the potential to revolutionize individualized patient care during the preoperative imaging,and postoperative surveillance.In this paper,we reviewed the existing evidence and outlined the potential for applying AI in the perioperative care of patients undergoing HPB surgery. | Hassaan Bari Sharan Wadhwani Bobby V M Dasari | 2021 | World Journal of Gastrointestinal Surgery2021，13，1： | 4 |
| 12 | Gene Expression Profiling of Human Epidermal Keratinocytes in Simulated Microgravity and Recovery Cultures显示文摘Simulated microgravity (SMG) bioreactors and DNA microarray technology are powerful tools to identify 'space genes' that play key roles in cellular response to microgravity. We applied these biotechnology tools to investigate SMG and post-SMG recovery effects on human epidermal keratinocytes by exposing cells to SMG for 3, 4, 9, and 10 d using the high aspect ratio vessel bioreactor followed by recovery culturing for 15, 50, and 60 d in normal gravity. As a result, we identified 162 differentially expressed genes, 32 of which were 'center genes' that were most consistently affected in the time course experiments. Eleven of the center genes were from the integrated stress response pathways and were coordinately down-regulated. Another seven of the center genes, which are all metallothionein MT-I and MT-II isoforms, were coordinately up-regulated. In addition, HLA-G, a key gene in cellular immune response suppression, was found to be significantly up-regulated during the recovery phase. Overall, more than 80% of the differentially expressed genes from the shorter exposures (≤4 d) recovered in 15 d; for longer (≥9 d) exposures, more than 50 d were needed to recover to the impact level of shorter exposures. The data indicated that shorter SMG exposure duration would lead to quicker and more complete recovery from the microgravity effect. | Jade Q. Clement Shareen M. Lacy Bobby L. Wilson | 2008 | Genomics, Proteomics & Bioinformatics2008，6，1： | 4 |
| 13 | Increased plasma malondialdehyde and fructosamine in anemic H pylori infected patients:Effect of treatment显示文摘AIM: To unravel the possible association of malon-dialdehyde (MDA) and fructosamine in anemic H pylori infected patients and to observe the alteration in MDA and fructosamine levels in these patients after treatment for one month.METHODS: Fructosamine, MDA and glucose were estimated in 22 anemic H pylori infected patients and 16 healthy controls. Hematological parameters were also evaluated in both the groups using Sysmex-K-100 automated cell counter. The H pylori infected patients were randomly divided into two groups. H pylori infected patients in GroupⅠreceived both iron supplementation and anti-H pylori therapy, while patients in Group Ⅱ received only iron supplementation. All the biochemical and hematological parameters were estimated after one month of treatment. RESULTS: In anemic H pylori infected patients, while MDA (5.41 ± 2.16 vs 2.26 ± 0.50; P < 0.05) and fructosamine (2.64 ± 0.93 vs 1.60 ± 0.35; P < 0.05) were significantly increased, iron (32.72 ± 14.93 vs 110.25 ± 26.58; P < 0.05), hemoglobin (6.9 ± 2.6 vs 12.66 ± 0.74; P < 0.05) and ferritin (28.82 ± 16.27 vs 140.43 ± 30.72; P < 0.05) levels were significantly decreased compared with the controls. With partial correlation analysis, fructosamine was found to have a significant positive correlation with MDA. In GroupⅠ, while MDA level decreased significantly (3.11 ± 1.73 vs 5.50 ± 2.46; P < 0.05), there was a significant increase in iron (84.09 ± 29.51 vs 36.09 ± 17.81; P < 0.05), hemoglobin (10.40 ± 1.11 vs 7.42 ± 1.90; P < 0.05) and ferritin (116.91 ± 63.34 vs 30.46 ± 17.81; P < 0.05) levels after one month. There was no significant change in the levels of fructosamine in groupⅠafter treatment. Similarly, no significant alterations were noted in the levels of MDA, fructosamine, hemoglobin or ferritin in Group Ⅱ patients after one month of treatment.CONCLUSION: An increased level of fructosamine and MDA was found in anemic H pylori infected patients. Present data supports the premise that lipid peroxides per se do play a role in the glycation of plasma proteins. Furthermore, the findings from this study indicate that treatment for both anemia and H pylori infections is required for lowering the levels of lipid peroxides in these patients. | G Vijayan RC Sundaram Zachariah Bobby Abdoul Hamide N Selvaraj N Rattina Dasse | 2007 | World Journal of Gastroenterology2007，13，5： | 4 |
| 14 | Sister Mary Joseph's nodule as the first sign of pregnancy-associated gastric cancer:A case report显示文摘Sister Mary Joseph's nodule is an inconspicuous and uncommon clinical sign of advanced malignant disease, especially gastric cancer. Pregnancy-associated gastric cancer is an extremely rare condition and can be difficult to diagnose, due to the absence or misinterpretation of symptoms as pregnancy-related. Diagnostic aids, such as a basic chemistry panel and imaging techniques, may not show any abnormalities. We present a case of a 37-year-old pregnant patient whose umbilical nodule was the first presenting physical sign of gastric cancer, which had metastasized throughout the abdominal and pelvic regions. | Sara Fill Andrei Taran Hans-Ulrich Schulz Stefan Kahl Thomas Kalinski Bobbie Smith Serban-Dan Costa | 2008 | World Journal of Gastroenterology2008，14，6： | 3 |
| 15 | AJCN:过敏症来袭怎么办?新型益生菌组合疗法显神效显示文摘当进入过敏季节我们可能并不太会拿出手帕或者打喷嚏来预防过敏。日前,一项刊登在国际杂志The American Journal of Clinical Nutrition上的研究报告中。来自佛罗里达大学的研究人员通过研究发现。一种益生菌组合或许能够帮助减轻花粉症的症状。 | Jennifer C Dennis-Wall Tyler Culpepper Carmelo Nieves Jr. Cassie C Rowe Alyssa M Burns Carley T Rusch Ashton Federico Maria Ukhanova Sheldon Waugh Volker Mai Mary C Christman Bobbi Langkamp-Henken | 2017 | 现代生物医学进展2017，17，18： | 3 |
| 16 | 蜂疗致蜂毒过敏的临床特征及影响因素显示文摘目的调查接受蜂疗的人群中蜂毒过敏的患病率和临床特征,并分析其危险因素。方法 2017年12月至2018年1月在石家庄、广州、深圳对开展蜂疗的中医医院进行横断面调查。对接受蜂疗的患者进行问卷调查,并对出现过大局部反应、全身反应的受访者进行蜂毒变应原皮肤点刺试验(SPT)。结果共调查127例接受蜂疗者,其中3例因未接受SPT而排除,共纳入124例,包括石家庄(华北地区)77例,广州和深圳(华南地区)47例。女性占68.5%;平均年龄(50.8±16.6)岁。41例在蜂疗中出现变态反应并接受了SPT;36例经SPT确诊为蜂毒过敏,占29%,其中5例出现过大局部反应的受访者SPT结果阴性,纳入非变态反应组。大局部反应者22例,占17.7%,全身反应者14例,占11.3%。35.7%(5/14)全身反应者曾经历过大局部反应。在调整了蜂疗起始年龄、性别、地域、基础疾病、变态反应等因素后,蜂疗频率是蜂毒过敏的影响因素(OR=0.838,95%CI:0.708~0.991)。结论接受蜂疗人群中蜂毒过敏情况不容忽视,对于高危人群尤需密切随访并配备急救药物和设备,增加蜂疗频率是蜂毒过敏的保护因素。 | 崔乐 王子熹 关凯 Bobby Quentin Lanier 李丽莎 徐迎阳 尹佳 徐涛 | 2018 | 中华临床免疫和变态反应杂志2018，12，3： | 3 |
| 17 | Cleavage of serum response factor mediated by enteroviral protease 2A contributes to impaired cardiac function显示文摘Enteroviral 感染能导致扩大心肌症(DCM ) ,它是世界范围的心血管的死亡的一个主要原因。然而,病原的机制充分没被阐明。浆液反应因素(SRF ) 是控制许多目标基因的表示的一个心脏充实抄写管理者,包括涉及可收缩的仪器和立即的早反应的那些,以及 microRNAs 那沉默心脏的规章的因素的表示。在心的 SRF 的大美人导致心脏的可收缩的基因表示的 downregulation 和 DCM 的开发。这研究的目标是在导致 enterovirus 的心脏的机能障碍和前进理解 SRF 的角色到 DCM。这里,我们报导 SRF 被劈开跟随老鼠心和有教养的 cardiomyocytes 的 enteroviral 感染。这劈开被心脏特定的可收缩、规章的基因的损害心脏的功能和 downregulation 伴随。由印射的抗体 epitope 和指导地点的 mutagenesis 的进一步的调查证明那 SRF 劈开通过编码病毒的朊酶 2A 的行动发生在它的 transactivation 领域的区域。而且,我们证明 SRF 的那劈开分裂它从 DNA 有约束力的领域的 transactivation 领域,导致调停 SRF 的基因 transactivation 的混乱。除了功能的 SRF 的损失,最后,我们报导 SRF 劈开产品的 N 终端碎片能也充当一个主导否定的抄写因素,它多半为 DNA 绑定与本国的 SRF 竞争。我们的结果建议病毒感染由损害心功能的机制并且可以提供新治疗学的策略改善 DCM 的心肌的损坏和前进。 | Jerry Wong Jingchun Zhang Bobby Yanagawa Zongshu Luo Xiangsheng Yang Jiang Chang Bruce McManus Honglin Luo | 2012 | Cell Research2012，22，2： | 3 |
| 18 | In vitro degradation and mechanical integrity of calcium-containing magnesium alloys in modified-simulated body fluid显示文摘 | M. Bobby Kannan R.K. Singh Raman | 2008 | Biomaterials2008，，15： | 2 |
| 19 | Plasma MiR-21: A Potential Diagnostic Marker of Colorectal Cancer显示文摘 | Ziad Kanaan Shesh N. Rai M. Robert Eichenberger Henry Roberts Bobby Keskey Jianmin Pan Susan Galandiuk | 2012 | Annals of Surgery2012，，3： | 2 |
| 20 | Brand diagnostics: Mapping branding effects using consumer associative networks显示文摘 | Geraldine R. Henderson Dawn Iacobucci Bobby J. Calder | 1998 | European Journal of Operational Research1998，，2： | 2 |
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