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力学进展 1986年第4期 549-558页

作者： b.i.cohen J.Killeen 唐福林

各种大大小小的计算机都有助于完善理论计算和提高精确度,并有助于设计、指导和分析实验。

关键词：磁约束等离子体不稳定性普林斯顿物理学家动力论计算机代码托卡马克气球模等离子体物理

Social System Historical Modeling of Western Economies and its implications for Eastern Economies

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Fudan Journal of the Humanities and Social Sciences 2023年第3期16卷 259-292页

作者： S.i.cohen Erasmus School of Economics Erasmus University RotterdamRotterdamThe Netherlands

The two purposes of the research are(a)to develop an analytical model that views the economy/polity as a social system with interactive subsystems of actors:households,firms,government,political parties and other significant actors,and(b)apply the analytical model to construct and verify a timeline that figures major events in world development that shaped the evolution of the western economies,and the relative strength of their interacting *** timeline highlights the changing and evolving dominance of the major subsystems in the economic history of the western *** differ from the convention of looking at history as the occurrence of exogenous consequential events and offer instead a system dynamics analysis that makes historical events endogenous and to be affected by the powerplay within the *** current dominance of the firm subsystem in western countries is demonstrated to be the accumulated result of centuries of past events:wars,discoveries,colonies,trade,political enlightenments,and industrial revolutions that strengthened participation and interactions in the firm subsystem at the cost of weakened dominance of rival subsystems(those of traditional households,theocrats,manors,communes,royals,and the modern state subsystem).The behavioral orientation of a social system is explainable in terms of(a)interactive influence(which occurs during the participation and interaction of agents in multiple settings,with some settings having more interactive influence than others),and(b)regulative influence(where the conduct of the one subsystem overrules that of other subsystems).Western economic history suggests a positive conditional correlation and convergence between(a)and(b).being conditional,the convergence between(a)and(b)may not hold in other world contexts,i.e.,China,india,Arab and African countries.

关键词： Social systems Economic history World economies Revolutions(industrial political) Dominance(business State)

Temporal trends in inflammatory bowel disease publications over a 19-years period

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World Journal of Gastroenterology 2014年第44期20卷 16745-16749页

作者： Yael Weintraub Francis b Mimouni Shlomi cohen Pediatric Gastroenterology and Nutrition Unit "Dana-Dwek" Children’s Hospital Tel Aviv Medical Center Sackler Faculty of Medicine Tel Aviv University Department of Pediatrics "Dana-Dwek" Children’s Hospital Tel Aviv Medical Center and Sackler Faculty of Medicine Tel Aviv University Division of Neonatology Shaare Zedek Medical Center

AiM: To determine whether temporal changes occurred in the pediatric vs adult inflammatory bowel disease(ibD), both in terms of number and type of yearly published ***:We aimed to evaluate all Pub Med-registered articles related to the field of ibD from January1,1993 and until December 31,*** searched for articles using the key words"inflammatory bowel disease"or"Crohn’s disease"or"ulcerative colitis"or"undetermined colitis",using the age filters of"child"or"adult".We repeated the search according to the total number per year of articles per type of article,for each year of the specified *** studied randomized controlled trials,clinical trials,case reports,meta-analyses,letters to the editor,reviews,systematic reviews,practice guidelines,and ***:We identified 44645 articles over the *** were 8687 pediatric-tagged articles vs 19750 adult-tagged *** 16208 articles were unaccounted and not assigned a"pediatric"or"adult"tag by Pub *** was an approximately3-fold significant increase in all articles recorded both in pediatric and adult *** significant increase was true for nearly every category of article but the number of clinical trials,meta-analysis,and randomized controlled trials increased proportionally more than the number of"lower quality"articles such as editorials or letters to the *** few guidelines were published every ***:There is a yearly linear increase in publications related to ***,there are more and more clinical trials and higher quality articles.

关键词： inflammatory bowel disease Crohn's dis-ease Ulcerative colitis Randomized clinical trial Meta-analysis

基于高分五号卫星的山西省煤炭行业甲烷点源排放特征

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煤炭学报 2024年第9期49卷 3960-3968页

作者：康涵书秦凯鹿凡胡玮许庆科恩·杰森中国矿业大学江苏省煤基温室气体减排与资源化利用重点实验室江苏徐州221008 中国矿业大学环境与测绘学院江苏徐州221116

甲烷是长效温室气体之一,其增温潜势是CO_(2)的28倍,约占全球变暖效应的16%。煤炭生产活动是中国甲烷排放的主要来源之一,作为中国主要的煤炭生产基地之一,山西省煤炭行业排放了大量甲烷。利用高分辨率遥感数据对山西省煤炭行业的甲烷... 详细信息

甲烷是长效温室气体之一,其增温潜势是CO_(2)的28倍,约占全球变暖效应的16%。煤炭生产活动是中国甲烷排放的主要来源之一,作为中国主要的煤炭生产基地之一,山西省煤炭行业排放了大量甲烷。利用高分辨率遥感数据对山西省煤炭行业的甲烷排放进行估算,可以为建立精细化的煤炭行业甲烷排放清单奠定数据基础,并为制定有效的减排措施提供科学依据。利用我国高分五号02星搭载的先进高光谱成像仪(AHSi),使用2021年10月—2023年3月的数据,探测到山西省煤炭行业等408个厂矿的838个甲烷羽流,并计算各羽流的排放速率。结果显示:①山西省煤炭行业的甲烷羽流排放速率呈现出非对称性,84%的羽流的排放速率在0.5~3.0 t/h,但也有少数极端情况,最高的排放速率超过10.0 t/h。②山西省有6个煤炭行业甲烷点源排放密集区,其中5个密集区与XCH_(4)的高值区域相对应。③检测到甲烷排放点源,以煤矿和焦化企业为最多。不同类型的排放源甲烷平均排放速率差异性较大,且排放速率会随时间和排放源的变化而波动。煤炭行业的各个环节都可能存在甲烷排放。④高度持续性排放源虽然只占所有点源的13%,但其贡献了41%的总排放速率。相反,高度间断性排放源虽然占了59%,但其只贡献了25%的总排放速率。全山西煤炭行业的甲烷综合排放速率为177.17±56.35 t/h,主要由煤矿类、焦化类和火电类企业的甲烷排放构成。

关键词： GF5b–AHSi 煤炭行业甲烷点源排放排放特征间歇性

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intraspecific temporal resource partitioning at white-tailed deer feeding sites

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Current Zoology 2019年第2期65卷 139-146页

作者： David b. STONE James A. MARTiN bradley S. cohen Thomas J. PREbYL Charlie KiLLMASTER Karl V. MiLLER Warnell School of Forestry and Natural Resources University of Georgia Athens GA USA Savannah River Ecology Lab University of Georgia Aiken SC USA Department of biology Tennessee Technological University Cookeville TN USA Georgia Department of Natural Resources Atlanta GA USA

individuals may reduce competition by temporally partitioning their use of a shared resource. behavioral differences between sexes in ungulates may encourage segregation as individuals attempt to avoid antagonistic interactions. However, dominant sex and age groups may reduce subordinates' access to food resources, regardless of the subordinate's sex. We hypothesized that white-tailed deer Odocoileus Virginian us temporally segregated at supplemental feedi ng sites based on social rank (subordinate: yearling males and adult females;dominant: adult males) and that segregation was affected by phase of the breeding season and diel cycle. if deer temporally segregate according to social rank, we predicted that the resulting activity patterns would manifest in one social class being relatively more susceptible to hunter-induced mortality. We used a multistate modeling approach to quantify temporal segregation and calculated the probability that a feeding site was in a particular state during diurnal and nocturnal hours for each of the 3 phases of the breeding season. We determined that transition probabilities differed by season and diel cycle and dominant and subordinate social classes clearly avoided each other, with i ng sites. During the pre-breedi ng seas on, the probability of a subordi nate being present during diurnal hours was *** more likely than a dominant being present, but did not differ during nocturnal hours. There was no difference for dominants and subordinates during diurnal or no cturnal hours during the breedi ng season .in the post-breedi ng season, subordi nates were 1.7x more likely to occur at the feeding site than a dominant during diurnal hours but they did not differ during nocturnal hours. Our results indicate that dominance status influences temporal segregation at feeding sites and is affected by the phase of the breeding season. Therefore, the resulti ng activity patterns may in crease subordi nates' risk to human

关键词： competition multistate modeling predation risk supplemental feeding sites intraspecific temporal resource partitioning white-tailed deer

Tailoring the spectral response of add/drop single and multiple resonators in silicon-on-insulator

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Chinese Optics Letters 2009年第4期7卷 291-295页

作者： b.Timotijevic G.Mashanovich A.Michaeli O.cohen V.M.N.Passaro J.Crnjanski G.T.Reed Advanced Technology institute University of SurreyGuildfordGU2 7XHUK (B.Timotijevic is now with CSEM SARue Jaquet-Droz 1CH-2002 NeuchatelSwitzerland) intel Corporation Kyriat Gat 82109JerusalemIsrael Politecnico di bari via E.Orabona 470125 BariItaly Faculty of Electrical Engineering University of BelgradeBulevar kralja Aleksandra 73b11120 BelgradeSerbia

Channel dropping waveguide filters based on single and technology are of great interest due to their compactness multiple resonators in silicon-on-insulator （SOi） and high wavelength selectivity, which is a desirable feature for photonic modulators, detectors, and other optically integrated components in telecommu- nication systems, in particular for wavelength division multiplexing （WDM） systems. Particular advantage of these filters is that they are capable of producing relatively large free spectral range （FSR） as well as narrow 3-db bandwidth of the filter resonances. Herein we sibility of designing mono-mode and （nearly） polarization with the FSR in excess of 30 nm. report experimental results and discuss the posindependent SOi ring and racetrack resonators

关键词： Resonators Silicon detectors Wavelength division multiplexing

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Herbaceous peony in warm climate:Modelling stem elongation and growers profit responses to dormancy conditions

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information Processing in Agriculture 2016年第3期3卷 175-182页

作者： Menashe cohen Rina Kamenetsky Gregory Yom Din Northern R&D MigalP.O.Box 831Kiryat Shmona 11016Israel institute of Plant Science Agricultural Research OrganizationVolcani CenterBet Dagan 50250Israel Open University of israel RaananaIsrael Faculty of Exact Sciences Tel Aviv UniversityTel AvivIsrael

We analysed the data collected for herbaceous peony cultivated in a warm climate region and stored in winter under three constant chilling *** used the quadratic regression model to describe the stem elongation responses to winter dormancy conditions,and the logistic function to describe the weekly stems *** predicted maximal stem length from the first model was used as the input parameter for the second *** than 4000 data for various(a)chilling constant temperatures during dormancy,(b)dormancy duration,and(c)germination duration,were *** models were applied to determine the optimal number of chill *** this purpose,two criteria were used in different versions of the model:the maximal stem length and the maximal profit of *** the two chilling temperatures of 2℃ and 6℃,the optimal values of chill units(in the models of a maximal stem length and maximal profit of farmers)are close to one another,and the values of a maximal stem length and maximal profit are significantly *** the case of the third chilling temperature of 10℃,the model failed to determine the optimal number of chill *** method of inverse confidence intervals for testing the significance of the optimal number of chill units was used.

关键词： Peony Dormancy Regression Logistic function inverse confidence intervals Profit

inhibition of α-glucosidase activity by N-deoxynojirimycin analogs in several insect phloem sap feeders

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insect Science 2016年第1期23卷 59-67页

作者： Marina Katzman Ya'kobovitz Terry D. butters Ephraim cohen Department of Entomology Robert H. Smith Faculty of Agriculture Food and Environment The Hebrew University of Jerusalem RehovotIsrael Department of biochemistry University of Oxford Oxford OX1 3QU UK

Secondary metabolites and synthetic iminosugars that structurally resemble monosaccharides are potent inhibitors of a-glucosidase activity. The enzyme is core in cleaving sucrose in phloem feeding insects and it also plays a crucial role of reducing osmotic stress via the formation of oligosaccharides. inhibition of hydrolysis by iminosug- ars should result in nutritional deficiencies and/or disruption of normal osmoregulation. Deoxynojirimycin （DNJ） and 2 N-alkylated analogs [N-butyl DNJ （Nb-DNJ） and N-nonyl DNJ （NN-DNJ）] were the major iminosugars used throughout the study. The extensive experiments conducted with a-glucosidase of the whitefly bemisia tabaci indicated the competitive nature of inhibition and that the hydrophilic DNJ is a potent inhibitor in com- parison to the more hydrophobic Nb-DNJ and NN-DNJ compounds. The same inhibitory pattern was observed with the psyllid Cacopsylla bidens a-glucosidase. in contrast to the above pattern, enzymes of the aphids, Myzus persicae and Aphis gossypii were more sen- sitive to the hydrophobic iminosugars as compared to DNJ. in vivo experiments in which adult b. tabaci were fed dietary iminosugars, show that the hydrophilic DNJ was far less toxic than the lipophilic Nb-DNJ and NN-DNJ. it is proposed that this pattern is attributed to the better accessibility of the hydrophobic NN-DNJ to the a-glucosidase membrane- bound compartment in the midgut. based on the inhibitory effects of certain polyhydroxy N-alkylated iminosugars, a-glucosidase of phloem feeding hemipterans could serve as an attractive target site for developing novel pest control agents.

关键词： a-glucosidase inhibition bemisia tabaci Cacopsylla bidens iminosugars Myzuspersicae osmoregulation phloem sap feeders

Enoxaparin dosing errors in the emergency department

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World Journal of Emergency Medicine 2018年第3期9卷 195-202页

作者： Samantha P.Jellinek-cohen May Li Gregg Husk College of Pharmacy and Health Sciences St.John's University The David b.Kriser Department of Emergency Medicine Mount Sinai Beth Israel

bACKGROUND:The study aimed to determine the frequency of enoxaparin dosing errors for patients who had a measured emergency department(ED)weight compared to those who did not have a measured ED weight,and to determine if demographic variables(e.g.,weight,height,age,Englishspeaking,race)impact the likelihood of receiving an inappropriate ***:This is a retrospective,electronic chart review of patients who received a dose of enoxaparin in the ED between January 1,2008 and July 1,*** identified all patients>18 years who received a dose of enoxaparin while in the ED,were admitted,and had at least one inpatient weight within the first four days of *** were excluded if they received enoxaparin for prophylaxis or a dose of more than 1.25mg/***:A total of 1,944 patients were *** were more likely to experience an error if they did not have a measured ED ***-doses of>10mg were more likely to occur in patients without a measured ED *** with no documented ED weight or with a staffestimated ED weight were more likely to experience a dosing error than those with a patient-stated *** were more likely to experience an error if their first inpatient weight was more than 96kg,they were more than 175-cm tall,or were English ***:Dosing errors are more likely to occur when patients are not weighed in the *** to current workflows to incorporate weighing those patients who receive weightdosed medications may be warranted.

关键词： Enoxaparin Weight-based dosing Emergency department Dosing errors

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ANALYSiS OF QUANTiTATiVE TRAiT LOCi （QTL） FOR STEM bORER RESiSTANCE iN RiCE

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ANALYSIS OF QUANTITATIVE TRAIT LOCI （QTL） FOR STEM BORER R...