检索结果-南通市图书馆

Natural Science 2021年第6期13卷 194-207页

作者： Timothy E. Black Medhat Radi amanda somers Charles I. Abramson Laboratory of Comparative Psychology and Behavioral Biology Psychology Department Oklahoma State University Stillwater USA Pest Physiology Department Plant Protection Research Institute ARC Giza Egypt

Honey bees are an established animal model for studying learning and memory related behaviors. In recent years, honey bees have become more common as a model for investigations of molecular biology, including gene expression. Honey bees have been used to extrapolate genetic functions found in other invertebrates, such as Drosophila melanogaster. The honey bee model has also provided a means for isolating novel genes, including non-coding microRNA fragments. Integrating the study of learning and memory with molecular genetics, the present work examines the effect of learning acquisition and memory consolidation in free-choice paradigms on the expression of a suite of genes of interest. Results suggest that short-term learning acquisition causes differential expression of microRNA fragments, while memory consolidation differentially affects the expression of the serine/threonine protein kinase gene in honey bees. These results corroborate previous findings suggesting the importance of protein kinases in the formation of long term memory, and suggest that microRNA may play a large role in regulation of cytoskeletal scaffolding proteins.

关键词： Honey Bees Learning Memory Gene Expression microRNA

The Application of Comparative Psychology to Parapsychology: A Recommendation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Science 2020年第6期12卷 320-328页

作者： amanda somers Marlina D. Byrd Brooklyne Curliss Vanessa Lay Ian T. Jones Charles I. Abramson Oklahoma State University Stillwater USA

We propose that the comparative psychological principle of “levels” be used as a new research methodology to investigate psi in humans. Rather than investigate psi in animals, as is sometimes done, we propose to investigate psi in humans using animals as a receptor. Our approach is to start with simple organisms such as protozoans and progress to planarians and honey bees. The behavior of these organisms is well characterized and easily manipulated. Deviations from standard behavior patterns during an experiment on telekinesis can suggest psi effects. A major advantage of using invertebrates for psi research is that if a psi effect is found, the underlying mechanism of the effect can be analyzed using molecular and genetic tools. We provide suggestions on how telekinesis can be studied using this approach and suggest that Observation Oriented Modeling be used to analyze psi data.

关键词： Comparative Psychology Psi Telepathy Anpsi OOM

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

如何招聘和留住财务人才

商学院 2024年第2期 16-16页

作者： Meredith somers 麻省理工学院斯隆管理学院

会计曾经是财务人员职业生涯的起点,随着技术的进步,财务工作需要体现更深入的数据分析能力,需要理解财务对业务的影响,这对财务团队提出了新的挑战。甫瀚咨询(Protiviti)首席顾问安德烈亚·斯皮内利强调了对于财务领域核心技能的需求... 详细信息

会计曾经是财务人员职业生涯的起点,随着技术的进步,财务工作需要体现更深入的数据分析能力,需要理解财务对业务的影响,这对财务团队提出了新的挑战。甫瀚咨询(Protiviti)首席顾问安德烈亚·斯皮内利强调了对于财务领域核心技能的需求。她表示:“人们仍然需要知道什么是资产和负债,借方和贷方是什么,但他们对它的运用和处理方式将会改变,人们必须适应这一变化。”

关键词：数据分析能力首席顾问财务团队财务人才财务人员核心技能处理方式招聘

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

团队管理的两个关键要素

商学院 2024年第6期 14-14页

作者： Meredith somers 麻省理工学院斯隆管理学院

在成功团队的构建中,讲故事是一门艺术,它承载着文化的力量。麻省理工学院斯隆管理学院讲师、体育记者希拉·斯普林格(ShiraSpringer)提出,通过在团队内部讲故事,领导者可以与团队成员建立更为紧密的联系,增强团队凝聚力。他们不仅阐述... 详细信息

在成功团队的构建中,讲故事是一门艺术,它承载着文化的力量。麻省理工学院斯隆管理学院讲师、体育记者希拉·斯普林格(ShiraSpringer)提出,通过在团队内部讲故事,领导者可以与团队成员建立更为紧密的联系,增强团队凝聚力。他们不仅阐述自已的价值观,还通过分享个人职业生涯中的故事,包括成功和挫折,来传达自己的理念。同时,领导者还应该鼓励团队成员分享他们自己的故事。

关键词：麻省理工学院团队凝聚力讲故事斯普林斯隆管理学院 Springer 团队管理个人职业生涯

Combining flamelet-generated manifold and machine learning models in simulation of a non-premixed diffusion flame

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy and AI 2023年第4期14卷 173-188页

作者： Kaimeng Li Pourya Rahnama Ricardo Novella Bart somers Power&Flow–Department of Mechanical Engineering.Technical University of Eindhoven.P.O.Box 513 5600 MB EindhovenThe Netherlands CMT–Motores T´ermicos.Universidad Polit´ecnica de Valencia.Camino de Vera s/n E-46022 ValenciaSpain

Flamelet Generated Manifold(FGM)is an example of a chemistry tabulation or a flamelet method that is under attention because of its accuracy and speed in predicting combustion ***,the main problem in applying the model is a large amount of memory *** way to solve this problem is to apply machine learning(ML)to replace the stored tabulated *** different machine learning methods,including two Artificial Neural Networks(ANNs),a Random Forest(RF),and a Gradient Boosted Trees(GBT),are trained,validated,and compared in terms of various performance *** progress variable source term and transport properties are replaced with the ML *** attention was paid to the progress variable source term due to its high gradient and wide range of its value in the control variables *** preprocessing is shown to play an essential role in improving the performance of the *** ensemble models,namely RF and GBT,exhibit high training efficiency and acceptable *** the other hand,the ANN models have lower training errors and take longer to *** four models are then combined with a one-dimensional combustion code to simulate a counterflow non-premixed diffusion flame in engine-relevant *** predictions of the ML-FGM models are compared with detailed chemical simulations and the original FGM model for key combustion properties and representative species profiles.

关键词： Flamelet models Tabulated chemistry models Computational fluid dynamics Machine learning Non-premixed diffusion flame

A combination of climate,tree diversity and local human disturbance determine the stability of dry Afromontane forests

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Forest Ecosystems 2021年第2期8卷 207-222页

作者： Hadgu Hishe Louis Oosterlynck Kidane Giday Wanda De Keersmaecker Ben somers Bart Muys KU Leuven Department of Earth and Environmental SciencesDivision ForestNature and LandscapeCelestijnenlaan 200EP.O.Box 24113001 LeuvenBelgium Department of Land Resource Management and Environmental Protection Mekelle UniversityCollege of Dryland Agriculture and Natural ResourcesP.O.Box 231MekelleTigrayEthiopia Laboratory of Geo-Information Science and Remote Sensing Wageningen University6708 PB WageningenThe Netherlands

Background:Anthropogenic disturbances are increasingly affecting the vitality of tropical dry *** future condition of this important biome will depend on its capability to resist and recover from these *** far,the temporal stability of dryland forests is rarely studied,even though identifying the important factors associated with the stability of the dryland forests could serve as a basis for forest management and ***:In a degraded dry Afromontane forest in northern Ethiopia,we explored remote sensing derived indicators of forest stability,using MODIS satellite derived NDVI time series from 2001 to *** and resistance were measured using the anomalies(remainders)after time series decomposition into seasonality,trend and remainder *** stability was calculated using the integral of the undecomposed NDVI *** NDVI derived stability indicators were then related to environmental factors of climate,topography,soil,tree species diversity,and local human disturbance,obtained from a systematic grid of field inventory plots,using boosted regression trees in ***:Resilience and resistance were adequately predicted by these factors with an R^(2) of 0.67 and 0.48,respectively,but the model for growth stability was *** of the wettest month,distance from settlements and slope were the most important factors associated with resilience,explaining 51%of the ***,temperature seasonality and humus accumulation were the significant factors associated with the resistance of the forest,explaining 61%of the overall effect.A positive effect of tree diversity on resilience was also important,except that the impact of species evenness declined above a threshold value of 0.70,indicating that perfect evenness reduced the resilience of the *** of the wettest month was the most important factor explaining 43.52%of the growth stability ***:A combination of clima

关键词： Climate Dryland Disturbance Restoration Tigray Growth stability Biodiversity function

Quantitative reasoning : +tools for today''s informed citizen / +Alicia Sevilla & Kay somers.

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Parental social support, perceived competence and enjoyment in school physical activity

1000年

作者： Alicia Sevilla & Kay somers.

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2018年第3期7卷 346-352页

作者： Bo Shen Erin Centeio Alex Garn Jeffrey Martin Noel Kulik Cheryl somers Nate McCaughtry Division of Kinesiology Health and Sport Studies Wayne State University Department of Kinesiology Louisiana State University

Background:Beginning in the elementary school years,there are differences among children on how they perceive their competence in physical activity(PA).Children's competence perceptions may influence their affective reactions to PA.A crucial question is how to motivate children who hold low competence perceptions to enhance their enjoyment and PA *** parents play critical roles in children's development and socialization,social support from parents can be an important factor to complement teachers'effort to enhance children's enjoyment and PA *** this research we identified the associations among children's beliefs about parental social support,perceived competence,and enjoyment in school ***:Three hundred and twenty children(9-11 years old)participated in a two-wave *** the first wave,children completed questionnaires measuring their beliefs about parental social support,perceived competence,and enjoyment in school PA;they reported their enjoyment again 8 months later at the second ***:Both concurrent and longitudinal analyses revealed that beliefs about parental social support were important factors associated with children's enjoyment in school PA,especially among girls with low competence ***:Family socialization factors should be taken into *** efficacy of individual and community-level strategies should be included and evaluated when designing effective intervention strategies that enhance children's PA in school.

关键词： Elementary children Motivation Social context Social support

GIGANTEA and EARLY FLOWERING 4 in Arabidopsis Exhibit Differential Phase-Specific Genetic Influences over a Diurnal Cycle

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2012年第3期5卷 678-687页

作者： Yumi Kim Miji Yeom Hyunmin Kim Junhyun Lim Hee Jung Koo Daehee Hwang David somers Hong Gil Nam Division of Molecular and Life Sciences POSTECH Hyojadong Pohang Kyungbuk 790-784 Republic of Korea School of Interdisciplinary Bioscience and Bioengineering POSTECH Hyojadong Pohang Kyungbuk 790-784 Republic of Korea Department of Chemical Engineering POSTECH Hyojadong Pohang Kyungbuk 790-784 Republic of Korea Integrative Biosciences and Biotechnology POSTECH Hyojadong Pohang Kyungbuk 790-784 Republic of Korea Department of Molecular Genetics The Ohio State University 244B Rightmire Hall 1060 Carmack Road Columbus OH 43210 USA National Core Research Center for Systems Bio-Dynamics POSTECH Hyojadong Pohang Kyungbuk 790-784 Republic of Korea

The endogenous circadian clock regulates many physiological processes related to plant survival and adapt- ability. GIGANTEA （GI）, a clock-associated protein, contributes to the maintenance of circadian period length and ampli- tude, and also regulates flowering time and hypocotyl growth in response to day length. Similarly, EARLY FLOWERING 4 （ELF4）, another clock regulator, also contributes to these processes. However, little is known about either the genetic or molecular interactions between GI and ELF4 in Arabidopsis. In this study, we investigated the genetic interactions between GI and ELF4 in the regulation of circadian clock-controlled outputs. Our mutant analysis shows that GI is epistatic to ELF4 in flowering time determination, while ELF4 is epistatic to GI in hypocotyl growth regulation. Moreover, GI and ELF4 have a synergistic or additive effect on endogenous clock regulation. Gene expression profiling of gi, elf4, and gi elf4 mutants further established that GI and ELF4 have differentially dominant influences on circadian physiological outputs at dusk and dawn, respectively. This phasing of GI and ELF4 influences provides a potential means to achieve diversity in the regulation of circadian physiological outputs, including flowering time and hypocotyl growth.

关键词： microarray LHY endogenous clock GI ELF4

Targeted heat treatment of additively manufactured Ti-6Al-4V for controlled formation of Bi-lamellar microstructures

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2021年第22期81卷 67-76页

作者： Cecilie V.Funch Alessandro Palmas Kinga Somlo Emilie H.Valente Xiaowei Cheng Konstantinos Poulios Matteo Villa Marcel A.J.somers Thomas L.Christiansena Department of Mechanical Engineering Technical University of DenmarkProduktionstorvetBuilding 4252800 Kongens LyngbyDenmark College of Materials Science and Engineering Chongqing UniversityChongqing 400044China

Laser powder bed fusion(L-PBF)was utilized to produce specimens in Ti-6Al-4V,which were subjected to a bi-lamellar heat treatment,which produces microstructures consisting of primary α-lamellae and a fine secondary α-phase inside the inter-lamellar β-*** bi-lamellar microstructure was obtained as(i)a direct bi-lamellar heat treatment from the asbuilt condition or(ii)a bi-lamellar heat treatment preceded by a β-*** the bi-lamellar treatment with β-homogenization,cooling rates in the range 1-500 K/min were applied after homogenization in β-region followed by inter-critical annealing in the α+β region at various temperatures in the range 850-950℃.The microstructures were characterized using various microscopical *** testing with Vickers hardness indentation and tensile testing was *** bi-lamellar microstructure was harder when compared to a soft fully lamellar microstructure,because of the presence of fine α-platelets inside the β-*** low temperature ageing provided an additional hardness increase by precipitation hardening of the primary α-*** age hardened bi-lamellar microstructure shows a similar hardness as the very fine,as-built martensitic *** bi-lamellar microstructure has more favorable mechanical properties than the as-built condition,which has high strength,but poor *** the bi-lamellar heat treatment,the elongation was improved by more than 250%.Due to the very high strength of the as-built condition,loss of tensile strength is unavoidable,resulting in a reduction of tensile strength of~18%.

关键词： Additive manufacturing Ti-6Al-4V Targeted heat treatment Bi-lamellar microstructures Laser powder bed fusion