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Realization of a New Current Mode Second-Order Biquad Using Two Current Follower Transconductance Amplifiers (CFTAs)

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Circuits and Systems 2015年第5期6卷 113-120页

作者： nisha walde Syed Naseem Ahmad Department of Electronics & Comm. Engineering Jamia Millia Islamia New Delhi India

A new circuit for realization of universal current-mode filter using current Follower Transconductance Amplifiers (CFTAs) is presented. The proposed circuit realizes current-mode low pass, high pass and band pass filter functions simultaneously with a single current source at the input. The band reject and all pass filters can also be obtained from the proposed circuit without any extra hardware. The proposed circuit employs three passive grounded elements and two CFTAs. Linear electronic control of natural frequency ω0 is available in the proposed circuit. The quality factor can be independently adjusted through grounded resistor. The proposed circuit employs two grounded capacitors and a grounded resistor along with two CFTAs. The grounded resistor can be replaced by an OTA based circuit for linear electronic control of quality factor Q0. The circuit exhibits low active and passive sensitivities for ω0 and Q0. Simulation results are obtained using PSPICE software which is in conformity with the theoretical findings.

关键词： Current Follower Transconductance Amplifier (CFTA) Current-Mode Circuit Biquad Filter Voltage-Mode Circuit Current Conveyor (CC)

A rare co-occurrence of spontaneous pneumomediastinum,pneumothorax,and pneumoperitoneum:Macklin effect

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World Journal of Emergency Medicine 2024年第3期15卷 246-248页

作者： Renaldo Pavrey Nikita Makwana nisha Das Centre for Accident and Emergency Medicine Nanavati Max Super Specialty HospitalMumbai 400050India

Spontaneous pneumomediastinum (SPM) is characterized by free air or gas located within the mediastinum that is not associated with any noticeable cause,such as chest trauma,intrathoracic infections,surgery,other organ... 详细信息

关键词： rupture trauma infections

Community perspectives on the effectiveness of watershed management institutions in the Himalayas

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Journal of Mountain Science 2024年第4期21卷 1119-1139页

作者： nisha SILWAL Nabin DHUNGANA Rajan SUBEDI Suraj UPADHAYA Chun-Hung LEE Natural Resources Conservation Nepal(NRCN) ChitwanP.O.Box 44200Nepal Department of Natural Resources and Environmental Studies College of Environmental StudiesNational Dong Hwa UniversityHualien 97401Chinese Taipei Institute of Forestry Tribhuvan UniversityPokharaP.O.Box 43Nepal School of Agriculture and Natural Resources Kentucky State UniversityFrankfortKY 40601USA Himalayan Conservation and Research Institute DolpaP.O.Box 21400Nepal

The sustainability of environmental management initiatives,such as watershed management programs,relies on the presence of effective institutions at the watershed ***,there needs to be more empirical evidence from evaluating the effectiveness of watershed-level ***,this study presents a pioneering effort to evaluate the effectiveness of Nepal’s first watershed conservation committee at the watershed scale,focusing on the case of the Khageri Khola watershed in Central *** study involved conducting a household survey,key informant interviews,focus group discussions,and field observations to collect and analyze the *** analysis,index value calculation,and chi-square statistics were then employed to summarize the results regarding local respondents’perceptions of twelve institutional characteristics,their rationalities,and their association with socio-demographic *** results reveal that the watershed conservation committee was perceived as performing well in managing the ***,good interaction,appropriate scale,technical,environmental,social,organizational,and government rationality were perceived as highly effective,with an average index value of less than *** contrast,clarity of objectives and economic rationality showed moderate effectiveness,with an average index value ranging from 0.36 to ***,the results suggested that adaptiveness,compliance capacity,and financial rationality merit increased attention,intending to improve their ***,the results showed the association of socio-demographics with respondents’perceptions of various indicators of institutional characteristics and their ***,the study provides valuable insights for policymakers,researchers,and development practitioners charged with designing sustainable and effective programs and *** enhance the effectiveness and sustainability of watershed management programs,we recommen

关键词： Watershed Watershed institutions Indicators Institutional characteristics Rationalities Nepal.

Navigating emotional challenges:A journey with patients undergoing chemotherapy

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World Journal of Clinical Oncology 2024年第9期15卷 1132-1135页

作者： nisha Mani Pandey Pooja Ramakant Department of Geriatric Mental Health King George's Medical UniversityLucknow 226003India Department of Endocrine Surgery King Georges Medical UniversityLucknow 226003India

A recent article reported that cancer patients with subthreshold depression are more likely to develop major depression within a *** regression analysis revealed that regular exercise was a protective factor against cancerrelated fatigue,whereas advanced age,radiotherapy,pain,and low hemoglobin were risk factors for cancer-related fatigue.A limitation of this study was the lack of methodological details about leukemia patients receiving depressive treatment at a specific *** assessment,behavioral modification plans,communication,destressing techniques,and educational plans may help chemotherapy patients manage emotional issues and reduce ***,these strategies can inspire patients to create,facilitate their treatment,and help them to remain healthy.

关键词： Leukemia patients Cancer patients Emotional distress Subthreshold depression Chemotherapy

Promoting Ethical Sensitivity in Nursing Education:A Systematic Review of Case Study-Based Health Education

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Journal of Clinical and Nursing Research 2024年第4期8卷 22-29页

作者： Jinyi Tang Santhna Letchmi Panduragan Fatimah Yahya nisha Nambiar Faculty of Nursing Lincoln University CollegeMalaysia

Introduction: Nursing ethical sensitivity refers to a nurse’s capacity for thoughtful consideration of ethical issues when faced with dilemmas. In the nursing domain, ethical dilemmas arise when nurses face challenges in making sound ethical decisions during clinical practice. These challenges may stem from conflicts between personal values and professional responsibilities. Methodology: Articles downloaded from Pub Med, CNKI, and Google Scholar were reviewed. Results: After rigorous screening, a meticulous analysis was conducted, encompassing 10 articles and involving a substantial cohort of 2863 participants. Existing literature revealed variations in the ethical dilemmas faced by nurses across different departments. The ethical sensitivity of nurses also varies, with higher ethical sensitivity correlating with stronger empathetic abilities. Zhen et al. classified the causes of ethical dilemmas into four main categories: (1) Ethical dilemmas arising from personal reasons of nursing students;(2) Ethical dilemmas stemming from the actions of teachers;(3) Ethical dilemmas triggered by patients;(4) Ethical dilemmas resulting from miscellaneous reasons. Conclusion: According to literature findings, nursing ethical sensitivity was positively linked to the nurse’s ethical decision-making ability. A case study-oriented teaching program has proven effective in enhancing ethical sensitivity among nursing students.

关键词： Ethical sensitivity Ethical dilemma Case study education Nursing ethical sensitivity scale Influencing factors Nursing student

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外语学习者心流研究:理论、主题与设计

外语教学 2024年第3期45卷 6-13页

作者：徐锦芬赵妮莎华中科技大学外国语学院重庆医科大学外国语学院

本文采用范围综述方法,检索并筛选有关外语学习者心流研究的SSCI和CSSCI来源期刊论文共34篇,从理论视角、研究主题及研究设计三个方面进行评述。结果表明:1)现有研究以心流理论为主,部分研究采用多种理论视角,但跨学科理论资源与外语学... 详细信息

本文采用范围综述方法,检索并筛选有关外语学习者心流研究的SSCI和CSSCI来源期刊论文共34篇,从理论视角、研究主题及研究设计三个方面进行评述。结果表明:1)现有研究以心流理论为主,部分研究采用多种理论视角,但跨学科理论资源与外语学习实证研究融合度不够;2)研究主题集中在外语学习者心流的成因和状态上,较少关注心流对学业成就及积极情绪的影响;3)被试多为大学英语学习者,背景多元化不足,存在抽样偏差问题;4)技术赋能对外语学习者心流体验有促进作用,但研究设计呈同质化倾向,缺乏深入的质性数据解释;5)以横向研究为主,缺乏对心流体验的动态跟踪。

关键词：外语学习者心流理论视角研究主题研究设计

OFDI对工业绿色全要素生产率的影响机制--基于两阶段Super-SBM-Malmquist指数模型的分析

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中国管理科学 2024年第5期32卷 229-240页

作者：申晨辛雅儒贾妮莎冯锐浙江理工大学经济管理学院浙江杭州310018 陕西师范大学国际商学院陕西西安710119 广州大学经济与统计学院广东广州510006

中国对外直接投资(outward foreign direct investment,OFDI)在推动中国经济与世界经济的深度融合、形成国内国际双循环发展新格局中有着举足轻重的作用。本文基于中国2005-2017年30个省份的面板数据,运用非期望产出的两阶段Super-SBM网... 详细信息

中国对外直接投资(outward foreign direct investment,OFDI)在推动中国经济与世界经济的深度融合、形成国内国际双循环发展新格局中有着举足轻重的作用。本文基于中国2005-2017年30个省份的面板数据,运用非期望产出的两阶段Super-SBM网络DEA模型以及结合全局ML生产率指数测算了中国各省份的工业绿色全要素生产率、生产效率和治污效率,并从理论和实证上考察了中国OFDI对三大效率的影响。研究发现:OFDI对三大效率的影响均表现为稳健的U型非线性关系;从作用机制看,短期内,OFDI对三大效率的抑制作用主要由于规模效应所致,长期内,OFDI对三大效率的促进作用主要通过结构效应和技术效应实现;从异质性视角看,我国东部和西部地区OFDI与三大效率呈显著的U型关系,中部地区的OFDI作用不显著,“一带一路”沿线省份的OFDI产生的正向效应早于非沿线省份。

关键词：对外直接投资(OFDI) 绿色全要素生产率(GTFP) 两阶段Super-SBM网络模型全局参比的Malmquist-Luenberger(GML)指数

乡村振兴视角下农户认知负荷对农业全产业链融入积极性的影响研究——来自570位农户的眼动实验证据

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南开经济研究 2024年第7期 145-162页

作者：刘超雷宏振兰娟丽贾妮莎陕西师范大学国际商学院 710019

农业全产业链开发对于提高农户福利水平和全面推进乡村振兴具有重要促进作用。本文基于双系统理论,从经济决策的心理实质出发,结合陕西省和青海省570位农户微观调查数据,采用眼动实验方法,系统考察了农户认知负荷对其全产业链融入积极... 详细信息

农业全产业链开发对于提高农户福利水平和全面推进乡村振兴具有重要促进作用。本文基于双系统理论,从经济决策的心理实质出发,结合陕西省和青海省570位农户微观调查数据,采用眼动实验方法,系统考察了农户认知负荷对其全产业链融入积极性的影响及作用机制。研究表明,认知负荷对农户全产业链融入的积极性产生了显著的抑制作用,认知负荷程度越高的农户,全产业链融入的积极性越低。进一步探讨作用机制后表明,认知负荷通过抑制农户的贴现因子来降低其全产业链融入积极性。结合眼动追踪技术记录的眼球移动轨迹,排除了认知负荷通过分散农户注意力及削弱自我控制能力间接影响时间偏好的可能路径。

关键词：认知负荷时间偏好眼动追踪技术农业全产业链乡村振兴

Feeding patterns of Indian giant flying squirrel(Petaurista philippensis, Elliot 1839) with reference to seasonal variation in central Gujarat, India

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Journal of Forestry Research 2019年第5期30卷 1959-1965页

作者： Singh nisha Dharaiya Nishith Wildlife and Conservation Biology Lab Department of Life Sciences Hemchandracharya North Gujarat University

Indian Giant Flying Squirrel(Petaurista philippensis Elliot 1839)is widely distributed in South Asia and the only species of flying squirrel found in *** studied the seasonal variation in its feeding behaviour at selected sites of Central *** sampling was employed to study the behaviours and mainly feeding *** analyses were consistent with other studies and indicated Madhuca longifolia as an important food *** diet of the species mainly consisted of pith,twig,seed,bark,petiole,young to mature leaves,flower and fruits of 20 species of plants of 15 families along with lichens,Vanda tessellata and Dendrophthoe *** longifolia(25%)contributed most to the squirrel diet,followed by Diospyros melanoxylon(10%)and Terminalia tomentosa(9%).Among the plant parts consumed,pith formed the highest bulk as a food at 23%,followed by fruits(21%),bark(16%),twig(14%),flower(10%),seed(6%),leaf(6%),and bud(4%).The findings reveal the high dependency of flying squirrel on certain tree *** tree species are well represented and distributed throughout central Gujarat,indicating that this area is important for the survival of this species and that the area should be conserved for protection and future management of this species.

关键词： Arboreal rodent Behaviour Madhuca longifolia Phenology Western India