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Chinese Political Theory in Dialogue with Rousseau

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Journal of Foreign Languages and Cultures 2022年第1期6卷 123-140,155页

作者： Martin powers University of Michigan

Within the vast body of scholarship on the Enlightenment,only a small portion addresses the role of China in the debates of that *** those,scarcely any concerns the relationship between China and Rousseau's *** the connections are many,and *** essay surveys a body of Chinese political theory available to Rousseau,then compares Rousseau's understanding of sovereignty,the“people,”popular will,public opinion,and the authority of office,with comparable terms present in the Chinese theory available to *** aim of this exercise is not so much to establish influence,though that can be dificult to ***,the essay attermpts to show that Rousseau's system generates contradictions in part because he attempts to combine parliamentary procedure with the conception of sovereignty and the popular will found in his Chinese sources.

关键词： China political theory Rousseau sovereignty popular will checks and balances public opinion corruption

A sweet new study: tropical forest species use nonstructural carbohydrates in different ways during drought

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Journal of Plant Ecology 2020年第4期13卷 387-388页

作者： Jennifer S.powers Departments of Ecology Evolution and Behaviorand Plant and Microbial BiologyUniversity of MinnesotaSt.PaulMN 55108USA

Anthropogenic climate change results in more than just elevated *** regimes are also impacted,and these changes include altered rainfall amounts,seasonality and variability(Feng et al.2013),and increases in the frequency and severity of droughts(Dai 2013).Climate change is likely to have profound consequences for forests(Brodribb et al.2020).While the potential effects of droughts on forests through tree mortality have been acknowledged for some decades(Karnig and Wyford 1968),a concerted focus on trees and droughts in the scientific literature is relatively *** evidence in support of this claim,a Web of Science search for the key words‘tree and mortality and drought’for the years 1900 through 2020 reveals that 82%of articles on this topic have been published in the last *** such,there is still disagreement on the mechanisms through which individual trees,species and forest communities respond to drought(Brodribb et al.2020).

关键词： drought consequences structural

Real-time in situ detection and quantification of bacteria in the Arctic environment

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Journal of Innovative Optical Health Sciences 2014年第2期7卷 35-45页

作者： Linda powers Walther R.Ellis Jr. Christopher R.Lloyd Department of Electrical and Computer Engineering Department of Biomedical Engineering University of Arizona Tuc sonAZ 85721 Department of Biomedical Enginering University of ArizonaTucsonAz 85721 MicroBioSystems of Arizona 1665.E 18th St.Suite 204TucsonAZ 85719

At present,there are no methods that determine the total micro ial load on an abiotic substra tein real *** utility of such a capability ranges from sterilization and medical diagnostics tothe search for new microorganisms in the environment and study of their ecological *** the development of a hand held,fluorescence detection device and demonstrate its applicability to the field detection of Arctic bacteria,This technology is based on the early pioneering work of Britton Chance which elucidated the intrinsic fiuorescence of a number ofmetabolites and protein cofactors in cels,including reduced pyridine nucleotides,cytochromesand flavins.A PDA controls the device(fluorescence excitation and data collection)and processesthe multiwavelength signals to yield bacterial cell counts,including cstimates of ive cells,deadcells and *** existing methods for cell counting,this method requires no samplecontact or addition of *** use of this technology is demonstrated with in situmea surements of two sub-glacial microbial communities at sites in Palander and colonized surfacerocks in the Bockijord Volcanic Complex during AMASE 2008(Arctic Mars Analog Svalbard Expedition),The total bacterial load on the interrogated sample surfaces ranged from1o9 cells/cm^(2).

关键词： Intrinsic fuorescence microbial sensor optical detection amplitude modulation Svalbard Archipelago.

Effects of historic wildfire and prescribed fire on site occupancy of bats in Shenandoah National Park,Virginia,USA

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Journal of Forestry Research 2020年第4期31卷 1255-1270页

作者： Lauren V.Austin Alexander Silvis W.Mark Ford Karen E.powers Department of Fish and Wildlife Conservation Virginia TechBlacksburgVA 24061USA Resource Environmental Solutions WarrentonVA 20187USA U.S.Geological Survey Virginia Cooperative Fish and Wildlife Research UnitBlacksburgVA 24061USA Biology Department Radford UniversityRadfordVA 24141USA

Given the likelihood of regional extirpation of several once-common bat species in eastern North America from white-nose syndrome,it is critical that the impacts of forest management activities,such as prescribed fire,are known in order to minimize potentially additive negative effects on bat *** wildfires may offer a suitable surrogate to assess long-term burn impacts on bats for planning,implementing and assessing burn *** examine the effects of historic fire on bats,we sampled bat activities at 24 transect locations in burned and unburned forest stands in the central Appalachian Mountains of Shenandoah National Park(SNP),Virginia,*** was limited evidence of positive fire effects over time on hoary bats(Lasiurus cinereus Beauvois)and big brown bats(Eptesicus fuscus Beauvois)***,there were few or mostly equivocal relationships of bat occupancy relative to burn conditions or time since fire in SNP across species using a false-positive occupancy *** results suggest that fire does not strongly affect bat site occupancy short-or long-term in the central Appalachians.

关键词： Appalachian mountains Bats False-positive occupancy Prescribed fire Wildfire

Mending a broken heart with novel cardiogenic small molecules

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Cell Regeneration 2022年第1期11卷 188-191页

作者： Nevan powers Guo N.Huang Cardiovascular Research Institute&Department of Physiology University of CaliforniaSan FranciscoSan FranciscoCA 94158USA Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research University of CaliforniaSan FranciscoSan FranciscoCA 94158USA

Adult mammalian cardiomyocytes are unable to proliferate to regenerate lost tissue after heart *** et al.,reporting in Cell Stem Cell,employ a FUCCI-and MADM-based system to screen for small molecules combinations that produced a collaborative effect on cardiomyocyte cycling and *** authors generate a cocktail of five small molecules that increase cardiomyocyte proliferation and regeneration in vitro and in vivo with high efficiency,and explore its potential in cardiac regenerative repair after myocardial infarction through a new potential pathway for cardiomyocyte cell-cycle re-entry.

关键词： cardio cardiac

On the Necessary Grid Resolution for Verified Calculation of Premixed Laminar Flames

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Communications in Computational Physics 2010年第7期8卷 304-326页

作者： Ashraf N.Al-Khateeb Joseph M.powers Samuel Paolucci Department of Aerospace and Mechanical Engineering University of Notre DameNotre DameIndiana 46556-5637USA

We consider the grid resolution necessary to resolve combustion in a mixture of calorically imperfect ideal gases described by detailed kinetics and multicomponent *** the steady premixed laminar flame as a paradigm,the required spatial discretization to capture all detailed physics in the reaction zone is found via 1)determination of the finest grid used in a standard software tool which employs adaptive mesh refinement,2)examination of peak values of intermediate species mass fractions in the flame zone as a function of grid size,3)a formal grid resolution study,and 4)a robust new eigenvalue analysis developed to estimate the finest length *** to laminar premixed flames in hydrogen-air flames reveals that the finest length scale is on the order of 10^(−4) cm for combustion at atmospheric *** at this scale is shown to be necessary to capture detailed species mass fraction profiles;other features such as steady flame speeds and equilibrium thermochemical properties do not have such a stringent length scale requirement.

关键词： Length scales premixed flames detailed kinetics

Life-insurance Efficiency in China:A Comparison of Foreign and Domestic Firms

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China & World Economy 2009年第6期17卷 43-63页

作者： Bingzheng Chen Michael R. powers Joseph Qiu Professor of Finance School of Economics and Management Tsinghua University Beijing China Professor of Risk Management and Insurance Fox School of Business Temple University Philadelphia USA Consultant Towers Perrin Philadelphia USA

The Chinese life-insurance industry has experienced major structural changes in recent years, primarily because of increasing demand and the entry of foreign insurers. Although the market is clearly booming, the efficiency of its growth and development is unclear. In this paper, we evaluate the efficiency of life insurers operating in China and compare foreign firms with domestic firms. We find that foreign insurers have not brought efficiency into the Chinese market, and that the market is still dominated by domestic giants. However, the gap between foreign insurers and domestic insurers is narrowing. After testing hypotheses regarding scale economy, technical progress andpotential improvements, we discuss several issues＇ of importance to life insurers, market investors and government regulators.

关键词： efficiency life insurance scale economy technical progress

Colossal negative magnetoresistance from hopping in insulating ferromagnetic semiconductors

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Journal of Semiconductors 2022年第11期43卷 44-53页

作者： Xinyu Liu Logan Riney Josue Guerra William powers Jiashu Wang Jacek K.Furdyna Badih A.Assaf Department of Physics and Astronomy University of Notre DameNotre DameIN 46556USA

Ferromagnetic semiconductor Ga_(1–x)Mn_(x)As_(1–y)P_(y) thin films go through a metal–insulator transition at low temperature where electrical conduction becomes driven by hopping of charge *** this regime,we report a colossal negative magnetoresistance(CNMR)coexisting with a saturated magnetic moment,unlike in the traditional magnetic semiconductor Ga_(1–x)Mn_(x)*** analyzing the temperature dependence of the resistivity at fixed magnetic field,we demonstrate that the CNMR can be consistently described by the field dependence of the localization length,which relates to a field dependent mobility *** dependence is likely due to the random environment of Mn atoms in Ga_(1-x)Mn_(x)As_(1-y)P_(y) which causes a random spatial distribution of the mobility that is suppressed by an increasing magnetic field.

关键词： ferromagnetic semiconductor colossal negative magnetoresistance variable-range hopping nearest-neighbor hopping Anderson localization spintronic

EXERCISE，ANTIOXIDANTS，AND CARDIOPROTECTION

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中国运动医学杂志 2004年第1期23卷 57-63页

作者： ScottK.powers Ph.D. Ed.D. DepartmentofExerciseandSportSciences DepartmentofPhysiology UnwenityofFloridaGainesville FloridaU.S.A.

Cardiovascular disease continues to be the number one cause of death in the United States.

关键词：运动抗氧化剂心功能保护心血管疾病冠状动脉疾病