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上海精神医学 2015年第2期27卷 126-129页

作者： ankur SACHdEVA Ankit SAXENA Manish KANdPAL Post Graduate Institute of Medical Education and Research

焦虑障碍患者很少出现幻视。本病例报告描述了一位男性患者,36岁,患有社交恐惧症和伴惊恐发作的广场恐惧症。该患者幻视明显,令其深受困扰、功能受损。用舍曲林200 mg/d、氯硝西泮1mg/d和普萘洛尔20 mg/d治疗一个月后,患者的焦虑和幻视... 详细信息

焦虑障碍患者很少出现幻视。本病例报告描述了一位男性患者,36岁,患有社交恐惧症和伴惊恐发作的广场恐惧症。该患者幻视明显,令其深受困扰、功能受损。用舍曲林200 mg/d、氯硝西泮1mg/d和普萘洛尔20 mg/d治疗一个月后,患者的焦虑和幻视缓解,能继续工作,恢复社会生活。本报告强调这样一个事实,即幻视并不一定预示着精神病性障碍,很多精神障碍都可能出现视幻觉。如果非精神病性障碍患者出现幻视,那么治疗这些非精神病性障碍通常也能同时缓解相关的幻视,而无需使用抗精神病药物。详细分析此类罕见病例有助于加深对精神病样症状的病理机制的认识。

关键词：病例报告焦虑精神障碍氯硝西泮普萘洛尔发病机制精神病幻觉

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A randomized trial of a 4- vs 12-week daily interferon dose regimen combined with ribavirin in treatment of patients with chronic hepatitis C

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Hepatobiliary & Pancreatic diseases International 2004年第1期3卷 42-48页

作者： Shiv K. Sarin ankur Goyal Sudheer Kumar Rajkumar C. Guptan Abid Zaffar Hashmi Pooja Sakhuja Veena Malhotra departments of Gastroenterology G. 13. Pant Hospital New Delhi 110002 India departments of Pathology G. 13. Pant Hospital New Delhi 110002 India

BACKGROUNd: Standard combination-therapy of ribavi- rin with alternate day interferon (IFN) in patients with chronic hepatitis C ( CHC) has been reported to achieve 30%-55% sustained viral response. Early reduction of viral load by daily dosage of IFN could enhance viral clearance. However, the duration of daily dosage protocol and the likely side-effects have not been well studied. We compared the efficacy and safety of a 4- vs 12-week daily IFN dosage in patients with CHC. METHOdS: Fifty-nine, histologically proven CHC patients having ALT levels >1.5 ×ULN were divided randomly into 2 groups, group I was given IFN 3 MIU daily for 4 weeks, followed by tiw up to 12 months and group was given IFN 3 MIU daily for 12 weeks, followed by tiw up to 12 months. Ribavirin was given in a dose of 800-1200 mg/d for 12 months. RESULTS: Fifty-two of the 59 patients (group group completed the study. The pretreatment vari- ables and the prevalence of HCV genotype 1 were compara- ble between the groups. Nine patients (29%) in group and 6 (25%) in group had stage 3, 4 fibrosis. At the end of 4, 12, 24 and 52 weeks, HCV RNA negativity was ob- served in 27%, 54%, 65% and 71% in group I and 38%, 54%, 71% and 75% in group respectively (P =ns). Four of the eight (50%) patients with genotype 1 and 30 (69.8%) of 43 patients with genotype non-1 responded to therapy (P =ns). Sustained viral response was achieved in 61% and 71% in groups respectively. None of the variables predicted non-response precisely. No serious adverse effects were observed and they were comparable between the two groups. CONCLUSION: daily IFN dosage with ribavirin is safe and can achieve response in up to 65% patients. Since the effica- cy of a 4-week daily dosage of IFN is comparable to a 12- week schedule, we recommend the former regimen.

关键词： hepatitis C virus hepatitis C interferon ribavirin induction dosage sustained viral response chronic hepatitis combination therapy

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Exciton dynamics in 2d organic semiconductors

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Materials Futures 2022年第4期1卷 5-16页

作者： ankur Sharma Md Mehedi Hasan Yuerui Lu School of Engineering College of Engineering and Computer ScienceThe Australian National UniversityCanberraACT 2601Australia

Two-dimensional(2d)semiconducting materials have been studied extensively for their interesting excitonic and optoelectronic properties arising from strong many-body interactions and quantum confinement at 2d *** of these materials have been inorganic,such as transition metal dichalcogenides,phosphorene,*** semiconductor materials,on the other hand been investigated for their excellent electrical conductivity and low dielectric coefficients for similar applications in the thin film or bulk material *** lack of crystallinity in the thin film and bulk phases has led to ambiguity over the excitonic and electronic/optical band gap *** recent emergence of 2d organic materials has opened a new domain of high crystallinity and controlled morphology,allowing for the study of low-lying excitonic states and optoelectronic *** have been demonstrated to have different excitonic properties compared with the Wannier–Mott excitons in inorganic 2d *** we present our recent experimental observations and analysis of 2d organic semiconductor *** discuss the role of high-crystalline and morphology-controlled growth of single-crystalline materials and their optoelectronic *** report explains the Frenkel(FR)and charge-transfer(CT)excitons and subsequent light emission and absorption properties in organic *** true nature of low-lying excitonic states,which arises from the interaction between CT and FR excitons,is experimentally studied and discussed to reveal the electronic band *** then discuss the pure FR behaviour we observed in J–type aggregated organic materials leading to coherent superradiant excitonic *** supertransport of excitons within the organic materials,facilitated by their pure FR nature,and the delocalization of excitons over a large number of molecules are also ***,we discuss the applications and our vision for these organic 2d materials in fast o

关键词： excitonic organic semiconductors two-dimensional

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Impact of Reactive Power in Power Evacuation from Wind Turbines

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Journal of Electromagnetic Analysis and Applications 2009年第1期1卷 15-23页

作者： Ashish Ranjan S. Prabhakar Karthikeyan ankur Ahuja K. Palanisamy I. Jacob Raglend d. P. Kothari chool of Electrical Sciences Vellore Institute of Technology Vellore India Christian College of Engineering and Technology Ottanchatiram Dindugal District. India School of Electrical Sciences Vellore Institute of Technology Vellore India Vellore Institute of Technology University Vellore India

Application of distributed Generation (dG) to supply the demands of a diverse customer base plays a vital role in the renewable energy environment. Various dG technologies are being integrated into power systems to provide alterna-tives to energy sources and to improve reliability of the system. Power Evacuation from these remotely located dG’s remains a major concern for the power utilities these days. The main cause of concern regarding evacuation is con-sumption of reactive power for excitation by Induction Generators (IG) used in wind power production which affects the power system in variety of ways. This paper deals with the issues related to reactive power consumption by Induc-tion generators during power evacuation. Induction generator based wind turbine model using MATLAB/SIMULINK is simulated and its impact on the grid is observed. The simulated results are analyzed and validated with the real time results for the system considered. A wind farm is also modeled and simulations are carried out to study the various im-pacts it has on the grid &nearby wind turbines during Islanding and system event especially on 3-Phase to ground fault.

关键词： distributed Generation (dG) Grid Wind Turbines Induction Generator Islanding Power Evacuation Point of Common Connection 3 Phase to Ground Fault

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Supertransport of excitons in atomically thin organic semiconductors at the 2d quantum limit

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Light(Science & Applications) 2020年第1期9卷 907-919页

作者： ankur Sharma Linglong Zhang Jonathan O.Tollerud Miheng dong Yi Zhu Robert Halbich Tobias Vogl Kun Liang Hieu T.Nguyen Fan Wang Shilpa Sanwlani Stuart K.Earl daniel Macdonald Ping Koy Lam Jeffrey A.davis Yuerui Lu Research School of Electrical Energy and Materials EngineeringCollege of Engineering and Computer ScienceThe Australian National UniversityCanberraACT 2601Australia Optical Sciences Centre Swinburne University of TechnologyHawthornVIC 3122Australia ARC Centre of Excellence for Future Low-Energy Electronics Technology Australia Centre for Quantum Computation and Communication Technology Department of Quantum ScienceResearch School of Physics and EngineeringThe Australian National UniversityActonACT 2601Australia School of Mechatronical Engineering Beijing Institute of TechnologyBeijing 100081China Institute for Biomedical Materials and devices(IBMd) Faculty of ScienceUniversity of Technology SydneySydneyNSW 2007Australia

Long-range and fast transport of coherent excitons is important for the development of high-speed excitonic circuits and quantum computing ***,most of these coherent excitons have only been observed in some low-dimensional semiconductors when coupled with cavities,as there are large inhomogeneous broadening and dephasing effects on the transport of excitons in their native states in ***,by confining coherent excitons at the 2d quantum limit,we first observed molecular aggregation-enabled‘supertransport’of excitons in atomically thin two-dimensional(2d)organic semiconductors between coherent states,with a measured high effective exciton diffusion coefficient of ~346.9 cm^(2)/s at room *** value is one to several orders of magnitude higher than the values reported for other organic molecular aggregates and low-dimensional inorganic *** coupling to any optical cavities,the monolayer pentacene sample,a very clean 2d quantum system(~1.2 nm thick)with high crystallinity(J-type aggregation)and minimal interfacial states,showed superradiant emission from Frenkel excitons,which was experimentally confirmed by the temperature-dependent photoluminescence(PL)emission,highly enhanced radiative decay rate,significantly narrowed PL peak width and strongly directional in-plane *** coherence in monolayer pentacene samples was observed to be delocalised over~135 molecules,which is significantly larger than the values(a few molecules)observed for other organic thin *** addition,the supertransport of excitons in monolayer pentacene samples showed highly anisotropic *** results pave the way for the development of future high-speed excitonic circuits,fast OLEds,and other optoelectronic devices.

关键词： transport quantum coherent

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