Ordering dynamics of self-propelled particles in an inhomogeneous medium

Ordering dynamics of self-propelled particles in an inhomogeneous medium in two-dimensions is studied. We write coarse-grained hydrodynamic equations of motion for coarse-grained density and velocity fields in the presence of an external random disorder field, which is quenched in time. The strength of inhomogeneity is tuned from zero disorder (clean system) to large disorder. In the clean system, the velocity field grows algebraically as $L_{\rm V} \sim t^{0.5}$. The density field does not show clean power-law growth; however, it follows $L_{\rm \rho} \sim t^{0.8}$ approximately. In the inhomogeneous system, we find a disorder dependent growth. For both the density and the velocity, growth slow down with increasing strength of disorder. The velocity shows a disorder dependent power-law growth $L_{\rm V}(t,\Delta) \sim t^{1/\bar z_{\rm V}(\Delta)}$ for intermediate times. At late times, there is a crossover to logarithmic growth $L_{\rm V}(t,\Delta) \sim (\ln t)^{1/\varphi}$, where $\varphi$ is a disorder independent exponent. Two-point correlation functions for the velocity shows dynamical scaling, but the density does not

Governance of communicable disease control services : a case study and lessons from India

The authors study the impact of governance and administrative factors on communicable disease prevention in the Indian state of Karnataka using survey data from administrators, frontline workers, and elected local representatives. They identify a number of key constraints to the effective management of disease control in India, in misaligned incentives, and the institutional arrangements for service delivery. The authors discuss these under five headings: administrative issues; human resource management; horizontal coordination; decentralization, community involvement, and public accountability; and implementation of public health laws and regulations. They find that India's public health system is configured to be highly effective at top-down reactive work, such as bringing disease outbreaks under control, but not for the more routine collaborations required for proactive disease prevention. The authors conclude with policy recommendations that take into account the complexity of India's system of public administration and the need for simple reforms that can be easily implemented.Health Monitoring&Evaluation,Health Systems Development&Reform,Agricultural Knowledge&Information Systems,Public Health Promotion,Disease Control&Prevention,Health Systems Development&Reform,Health Monitoring&Evaluation,National Governance,Agricultural Knowledge&Information Systems,Health Economics&Finance

ミュオンを構成粒子とするエキゾチック原子のレーザー誘起スピン偏極

京都大学0048新制・課程博士博士(エネルギー科学)甲第21891号エネ博第392号新制||エネ||76(附属図書館)京都大学大学院エネルギー科学研究科エネルギー応用科学専攻(主査)准教授 中嶋 隆, 教授 大垣 英明, 教授 作花 哲夫学位規則第4条第1項該当Doctor of Energy ScienceKyoto UniversityDGA

Changes in the electronic structure and properties of graphene induced by molecular charge-transfer

Interaction with electron donor and acceptor molecules such as aniline and nitrobenzene brings about marked changes in the Raman spectrum and the electronic structure of graphene, prepared by the exfoliation of graphitic oxide.Comment: 13 pages, 4 figure

EVALUATION OF PERFORMANCE MEASURE FACTORS FOR INDIAN HEALTHCARE INDUSTRY

This Paper aims at evaluation of Performance Measures (PMs) and its attributes in Indian healthcare. Various problems of health care industry through analysis of factors and its attributes, factor analysis, correlation and other framework parameters has been done. It was found that societal performance, Hospital Image, Treatment were the most significant PMs apart from Customer satisfaction, and Employee satisfaction. As there is no clear framework for excellence in healthcare, where stakeholders are an integral part of complete service, developed PMs and its connectivity to attributes may help to resolve the service level issues of Indian Hospital

Acute toxicity and behavioural responses of a freshwater mussel Lamellidens marginalis (Lamarck) to dimethoate exposure

Dimethoate is a commonly used organophosphate pesticide (OP) in agricultural practices, from where they reach into natural freshwater bodies through surface run-off, affecting the life of non-target aquatic organisms. Molluscs accumulate contaminants in their body tissues and thus are used as bio-indicator for evaluating water quality and habitat degradation. The mussels have great economic value, since they are consumed as food and have therapeutic significance. In this study 96h static acute toxicity test was carried out for dimethoate in freshwater mussel, Lamellidens marginalis. The mussels were exposed to 8 different concentrations of dimethoate (35.00, 37.00, 39.00, 41.00, 43.00, 45.00, 47.00, and 49.00 mg L-1) and control (00.00 mg L-1). The mortality data were subjected to EPA Probit analysis (version 1.5) statistical software based on Finney’s method. The 24, 48, 72 and 96h LC50 values of dimethoate for freshwater mussel were determined as 45.09, 40.52, 38.71 and 36.35 mg L-1 respectively. Mussels show behavioural responses during exposure by exhibiting increase in duration for shell closure, increase in mucus secretion and decrease in oxygen consumption