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Neonatal vitamin A injection promotes cattle muscle growth and increases oxidative muscle fibers

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Journal of Animal Science and Biotechnology 2019年第1期10卷 140-149页

作者： Bo Wang Wei Nie Xing Fu Jeanene M de Avila Yannan Ma Mei-Jun Zhu Martin Maquivar Steven M Parish Jan R Busboom mark L nelson Min Du State Key Lab of Animal Nutrition College of Animal Science and TechnologyChina Agricultural University Department of Animal Sciences Washington State University Department of Animal Sciences Louisiana State University College of Animal Science and Technology Gansu Agricultural University School of Food Science Washington State University College of Veterinary Science Washington State University

Background: Vitamin A and its metabolite,retinoic acid(RA),are important regulators of cell differentiation and organ *** impact on beef cattle muscle growth remains ***: Angus steer calves were administrated with 0(control) or 150,000 IU vitamin A(retinyl palmitate in glycerol,i.m.) per calf at birth and 1 month of *** 2 months of age,a biopsy of the Biceps femoris muscle was obtained to analyze the immediate effects of vitamin A injection on myogenic capacity of muscle *** resulting steers were harvested at 14 months of ***: Vitamin A administration increased cattle growth at 2 *** 2 months of age,Vitamin A increased PAX7 positive satellite cells and the expression of myogenic marker genes including PAX7,MYF5,MYOD and *** derived mononuclear cells were further isolated and induced myogenesis in *** myotubes and a higher degree of myogenesis was observed in vitamin A ***,vitamin A increased Latissimus dorsi(LD) muscle fiber size at *** addition,vitamin A increased the ratio of oxidative type I and type IIA fibers and reduced the glycolic type IIX ***,we found that RA,a key bioactive metabolite of vitamin A,activated PPARGC1 A promoter,which explains the upregulated expression of PPARGC1 A in skeletal ***: Vitamin A administration to neonatal calves enhanced postnatal muscle growth by promoting myogenesis and increasing satellite cell density,accompanied with a shift to oxidative muscle fibers.

关键词： Cattle Muscle Fiber type Muscle growth Myogenesis PAX7 Satellite cells Vitamin A

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经营战略的革命——合作生产（英文）

浙江科技学院学报 2017年第1期29卷 48-63页

作者： Jurgen Poesche Timo Nyberg 鲍森徐兴 mark nelson 熊刚 Ilkka Kauranen 阿尔托大学工业工程与管理系芬兰艾斯堡02150 中国科学院云计算中心广东东莞523808 浙江科技学院机械与汽车工程学院杭州310023 斯坦福大学中国和平创新实验室美国加利福尼亚94305 中国科学院自动化研究所北京100190

随着分散生产和非西方工程、科学的复兴,一场经营战略的革命正在崭露头角。这篇理论性论文的贡献在于:(i)评估了革命所处的历史背景;(ii)定义了分散生产的当前迭代,同时建立本次革命创新性、合法化与道德伦理的基础;(iii)表明了关于开... 详细信息

随着分散生产和非西方工程、科学的复兴,一场经营战略的革命正在崭露头角。这篇理论性论文的贡献在于:(i)评估了革命所处的历史背景;(ii)定义了分散生产的当前迭代,同时建立本次革命创新性、合法化与道德伦理的基础;(iii)表明了关于开发能力、资源和竞争优势的集中生产企业的商业理论,不适用于流体网络中的分散生产;(iv)识别了充分利用分散生产的多样化知识过程中遇到的认知挑战;(v)发现了与集中生产共同发展的法律文书阻碍了经营战略的革命。本研究旨在探讨以合作生产形式进行的分散生产的复兴对新兴多极世界的能力、资源和创新动力的影响。

关键词：认知合作策略工程创新国际管理

Performance Evaluation of Bioethanol Production through Continuous Fermentation with a Settling Unit

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Journal of Energy and Power Engineering 2013年第11期7卷 2083-2088页

作者： mark Ian nelson Norhayati Hamzah School of Mathematics and Applied Statistics University of Wollongong Wollongong 2522 NSW Australia Department of Mathematics University Brunei Darussalam Bandar Seri Begawan BE 1410 Brunei

This paper analyses a model for the production of bioethanol that has been calibrated against laboratory data by previous researchers. The authors investigate the improvement in productivity that can be obtained when a centrifuge is used to recycle cells that would otherwise leave the reactor system in the efficient stream. The authors compare the performance of a double reactor cascade, possible employing a settling unit, against that of a single reactor. For the former case, this paper considers the reactor configuration in which the settling unit recycles from the effluent stream of a reactor back in the influent of the same reactor.

关键词：乙醇生产生物乙醇绩效评估连续发酵沉降反应器系统单位实验室数据

Deep learning ferroelectric polarization distributions from STEM data via with and without atom finding

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npj Computational Materials 2021年第1期7卷 1342-1352页

作者： Christopher T.nelson Ayana Ghosh mark Oxley Xiaohang Zhang Maxim Ziatdinov Ichiro Takeuchi Sergei V.Kalinin Center for Nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTNUSA Computational Sciences and Engineering Division Oak Ridge National LaboratoryOak RidgeTNUSA Department of Materials Science and Engineering University of MarylandCollege ParkMDUSA

Over the last decade,scanning transmission electron microscopy(STEM)has emerged as a powerful tool for probing atomic structures of complex materials with picometer precision,opening the pathway toward exploring ferroelectric,ferroelastic,and chemical phenomena on the atomic *** to date extracting a polarization signal from lattice coupled distortions in STEM imaging rely on discovery of atomic positions from intensity maxima/minima and subsequent calculation of polarization and other order parameter fields from the atomic ***,we explore the feasibility of polarization mapping directly from the analysis of STEM images using deep convolutional neural networks(DCNNs).In this approach,the DCNN is trained on the labeled part of the image(i.e.,for human labelling),and the trained network is subsequently applied to other *** explore the effects of the choice of the descriptors(centered on atomic columns and grid-based),the effects of observational bias,and whether the network trained on one composition can be applied to a different *** analysis demonstrates the tremendous potential of the DCNN for the analysis of high-resolution STEM imaging and spectral data and highlights the associated limitations.

关键词： Deep network ferroelectric

Effects of fertilization on the growth dominance of Inland Northwest forests of the United States

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Forest Ecosystems 2022年第3期9卷 407-416页

作者： Cen Chen Andrew Snelson Terry Shaw mark Kimsey University of Idaho Department of ForestRangeland and Fire SciencesMoscowID83844USA

Large trees have disproportionally large competitive advantage in access to light, which has been proposed to increase growth dominance of large trees (e.g., a larger proportion of volume growth than standing volume is in large trees in a stand). Tree growth may also be limited by the availability of other resources besides *** deficiency, especially of nitrogen, is considered common among temperate forests including mixedconifer forests of the Inland Northwest of the United States. Data from a long-term forest nutrition study across four Inland Northwest states were analyzed to evaluate nitrogen×potassium fertilization?s effects on growth dominance over an eight-year period following treatment. Our results show that growth dominance varied substantially across plots in each vegetation series and fertilization treatment, and its mean values generally were at minuscule magnitudes, negative, and not significantly different from 0. We propose that this lack of a clear pattern in growth dominance was the result of the mixed-species composition where shade-tolerant species remained in lower crown positions, yet their relative growth kept pace with large trees. Limited moisture availability at dry sites may have hampered the development of growth dominance. Growth dominance also was lowered by mortality observed among relatively large trees. The largely negative growth dominance across fertilization treatments indicated that small trees seem to have maintained higher relative growth rates than large trees, even if absolute growth was higher among large trees. In the case fertilization does improve stand growth, a significant part of this improved growth will be lost in density-dependent mortality over time if not captured through thinning/harvesting.

关键词： Stand dynamics Forest management Nitrogen Potassium Douglas-fir Mixed conifer

Association of subcutaneous testosterone pellet therapy with developing secondary polycythemia

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Asian Journal of Andrology 2018年第2期20卷 195-199页

作者： Katherine Lang Rotker Michael Alavian Bethany nelson Grayson L Baird Martin M Miner mark Sigman Kathleen Hwang Division of Urology Brown University Providence RI 02903 USA Department of Biostatistics Lifespan Healthcare System Providence RI 02903 USA

A variety of methods for testosterone replacement therapy （TRT） exist, and the major potential risks of TRT have been well established. The risk of developing polycythemia secondary to exogenous testosterone （T） has been reported to range from 0.4% to 40%. Implantable T pellets have been used since 1972, and secondary polycythemia has been reported to be as low as 0.4% with this administration modality. However, our experience has suggested a higher rate. We conducted an institutional review board-approved, single-institution, retrospective chart review （2009-2013） to determine the rate of secondary polycythemia in 228 men treated with subcutaneously implanted testosterone pellets. Kaplan-Meyer failure curves were used to estimate time until the development of polycythemia （hematocrit 〉50%）. The mean number of pellets administered was 12 （range： 6-16）. The mean follow-up was 566 days. The median time to development of polycythemia whereby 50% of patients developed polycythemia was 50 months. The estimated rate of polycythemia at 6 months was 10.4%, 12 months was 17.3%, and 24 months was 30.2%. We concluded that the incidence of secondary polycythemia while on T pellet therapy may be higher than previously established.

关键词： hypogonadism pellet polycythemia testosterone

The International Commission on the History of Geological Sciences （INHIGEO） Symposium on History of Geophysics

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Episodes 2006年第1期29卷 56-58页

作者： Mike Johnston, nelson NEW ZEALAND

The 30th INHIGEO Symposium, with its theme the ‘History of Geophysics’, was held in the Czech Republic from 2-12 July 2005and attracted 42 participants from 18 countries.

关键词：地质科学捷克古生代地质工作第三纪

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串行通信开发指南第2版第二版

18GHz移动通讯回程应用需要高效1W GaAs MMIC放大器

丛书名：万水计算机技术实用大全系列

2000年

作者：（美）mark nelson 潇湘工作室译

本书主要内容包括串行通信的基础知识、Windows API的技巧，在高速调制解调器上达到最大数据交换速率的方法以及面向对象编程的最新技术。

ISBN: (纸本)7980044843

本书主要内容包括串行通信的基础知识、Windows API的技巧，在高速调制解调器上达到最大数据交换速率的方法以及面向对象编程的最新技术。

关键词：计算机通信基本知识

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电子设计技术 EDN CHINA 2010年第10期17卷 63-63,66页

作者： James nelson mark Andrews TriQuint半导体

为满足第四代数据传输服务的需要,无线通讯业已向LTE（长期演进）迅猛发展。虽然某些地区的不同标准将仍继续存在,世界上绝大部分的无线系统运营商会将依赖LTE作为他们4G平台的所有或相当大的组成部分。LTE能实现高质量视频流传输和文... 详细信息

为满足第四代数据传输服务的需要,无线通讯业已向LTE（长期演进）迅猛发展。虽然某些地区的不同标准将仍继续存在,世界上绝大部分的无线系统运营商会将依赖LTE作为他们4G平台的所有或相当大的组成部分。LTE能实现高质量视频流传输和文件速传等数据密集应用。

关键词： 4G平台LTE 移动通讯回程 1-WGaAs功率放大器 TGA4532-SM TriQuint