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Journal of Geoscience and Environment Protection 2023年第9期11卷 40-53页

作者： Ade Linda Wijungbwen cedrick nguemezi Duchel Ivilin Voulemo Djeuhala Paul Tematio Department of Earth Science Faculty of Science University of Dschang Dschang Cameroon

Assessing soil organic carbon stock (SOCS) and soil quality (SQ) helps design better agricultural practices to improve environmental sustainability and productivity. The purpose of the study is to assess SOCS and soil quality SQ in the main agroecosystems (AES) of the eastern flank of Mount Bambouto (West, Cameroon). Using multiple statistics tests and principal component analysis (PCA), SOCS and Soil Quality Index (SQI) were computed for each AES. SOCS and SQI were computed based on soil chemical properties and analysis of variance. Topsoil samples (0 - 30 cm) were collected in a different AES and analyzed in the laboratory. The four AES identified and selected are cultivated land (CL), forest areas (FA), mixed areas (MA), and bush areas (BA). Further, multiple comparison tests were used to compare soils from different AES. PCA was used to select the most appropriate indicators that control SOCS and SQ. Several soil properties showed high to very high coefficient of variation within the AES. Organic matter (OM) was significantly high in FA. SOCS and SQ differ significantly (p = 0.000) between the AES. The study further indicates that the main variables controlling SQ within the eastern flank of Mount Bambouto are OM, pHw, N, C/N, and CEC. While the main soil parameters controlling SOCS are OM, OC, BD, C/N, S, and pHKCl.

关键词： Soil Organic Carbon Stock Soil Quality Agroecosystems Principal Component Analysis Mount Bambouto

Dietary branched-chain amino acids modulate the dynamics of calcium absorption and reabsorption in proteinrestricted pigs

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Journal of Animal Science and Biotechnology 2022年第4期13卷 1083-1098页

作者： Mohammad Habibi cedrick NShili Julia Sutton Parniyan Goodarzi Adel Pezeshki Department of Animal and Food Sciences Oklahoma State University206C Animal Science BuildingStillwaterOK 74078USA

Background:Very low-protein(VLP)diets negatively impact calcium(Ca)metabolism and *** objective of this study was to investigate the effect of supplemental branched-chain amino acids(BCAA)and limiting amino acids(LAA)on Ca digestibility,absorption and reabsorption in pigs fed with VLP ***-eight piglets were assigned to six treatments:positive control(PC),negative control(NC),and NC containing LAA 25%,LAA 50%,LAA+BCAA 25%(LB25)and LAA+BCAA 50%(LB50)more than ***:Relative to PC or NC,LB25 and LB50 had higher digestibility of Ca and plasma Ca and phosphorus(P),but lower plasma vitamin ***50 tended to increase vitamin D receptor transcript and protein in the gut,but decreased mRNA or protein abundance of parathyroid hormone 1 receptor(PTH1R),calbindin 1(CALB1),cytochrome P450 family 27 subfamily B member 1 and occludin in small ***50 increased the transcript of cytochrome P450 family 24 subfamily A member 1 and PTH1R but decreased the transcript of transient receptor potential cation channel subfamily V member 5,CALB1 and solute carrier family 17 member 4 in ***:Overall,BCAA increased Ca digestibility through regulating the transcellular and paracellular Ca absorption in the gut and reabsorption in kidney during protein restriction.

关键词： Branched-chain amino acids Calcium absorption and reabsorption Calcium digestibility Pig Very low protein diets

Branched-chain amino acids partially recover the reduced growth of pigs fed with protein-restricted diets through both central and peripheral factors

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Animal Nutrition 2021年第3期7卷 868-882页

作者： Mohammad Habibi cedrick Shili Julia Sutton Parniyan Goodarzi Excel Rio Maylem Leon Spicer Adel Pezeshki Department of Animal and Food Sciences Oklahoma State UniversityStillwaterOK74078USA

The objective of this study was to assess the growth efficiency of pigs fed with protein-restricted diets supplemented with branched-chain amino acids(BCAA)and limiting amino acids(LAA)above the rec-ommended *** 2 weeks of adaptation,48 young barrows were weight matched and randomly assigned to 6 treatments(8 pigs/treatment)for 4 weeks:positive control(PC)with standard protein,negative control(NC)with very low protein containing LAA(i.e.,Lys,Met,Thr and Trp)at rec-ommended levels,and NC containing LAA 25%(L25),LAA 50%(L50),LAA+BCAA(i.e.,Leu,Ile and Val)25%(LB25)and LAA+BCAA 50%(LB50)more than *** intake(FI)and body weight(BW)were measured daily and weekly,*** week 6,blood samples were collected,all pigs euthanized and tissue samples *** data were analyzed by univariate GLM or mixed procedure(SPSS)and the means were separated using paired Student's t-test followed by Benjamini-Hochberg *** to PC,NC had decreased FI,BW,unsupplemented plasma essential amino acids,serum insulin-like growth factor-I(IGF-I)and hypothalamic neuropeptide Y(NPY)(P<0.01).Compared to NC,L25 or L50,LB50 had increased BW and serum IGF-I and decreased plasma serotonin and both LB25 and LB50 had higher FI,plasma BCAA,hypothalamic 5-hydroxytryptamine-receptor 2A and NPY and jejunal 5-hydroxytryptamine-receptor 7(P<0.01).Overall,supplementation of protein-restricted diets with increased levels of dietary BCAA partially recovered the negative effects of these diets on growth through improved IGF-I concentration and FI,which was associated with changed expression of serotonin receptors,blood AA and hypothalamic NPY.

关键词： Branched-chain amino acid Very low protein diet NPY insulin-like growth factor-Ⅰ Serotonin Pig

A Fluorescent Alternative to the Synthetic Strigolactone GR24

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Molecular Plant 2013年第1期6卷 100-112页

作者： Amanda Rasmussen Thomas Heugebaert cedrick Matthys Rik Van Deun Francois-Didier Boyer1 Sofie Goormachtig Christian Stevens Danny Geelen Plant Production Faculty of Bioscience Engineering Ghent University Coupure links 653 Ghent 9000 Belgium Research Group SynBioC Department of Sustainable Organic Chemistry and Technology Faculty of Bioscience Engineering Ghent University Coupurelinks 653 B-9000 Gent Belgium Department of Plant Systems Biology VIB Ghent 9052 Belgium Department of Plant Biotechnologyand Bioinformatics Ghent University Ghent 9052 Belgium f-element Coordination Chemistry Lab Inorganic and Physical Chemistry Department Ghent University Krijgslaan 281--$3 9000 Gent Belgium Centre de Recherche de Gif Institut de Chimie des Substances Naturelles UPR2301 CNRS INRA 1 avenue de la Terrasse F-91198 Gif-sur-Yvette Cedex France

Strigolactones have recently been implicated in both above- and below-ground developmental pathways in higher plants. To facilitate the molecular and chemical properties of strigolactones in vitro and in vivo, we have devel- oped a fluorescent strigolactone molecule, CISA-1, synthesized via a novel method which was robust, high-yielding, and used simple starting materials. We demonstrate that CISA-1 has a broad range of known strigolactone activities and further report on an adventitious rooting assay in Arabidopsis which is a highly sensitive and rapid method for testing biological activity of strigolactone analogs. In this rooting assay and the widely used Orobanche germination assay, CISA-1 showed stronger biological activity than the commonly tested GR24. CISA-1 and GR24 were equally effective at inhibiting branching in Arabidopsis inflorescence stems. In both the branching and adventitious rooting assay, we also demonstrated that CISA-1 activity is dependent on the max strigolactone signaling pathway. In water methanol solu- tions, CISA-1 was about threefold more stable than GR24, which may contribute to the increased activity observed in the various biological tests.

关键词： strigolactones adventitious rooting branching fluorescent markers parasitic weed seed germination.

THE DEVELOPMENT OF CHINESE MEDICINE AND ACUPUNCTURE SCIENCE IN CANADA

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World Journal of Acupuncture-Moxibustion 1992年第1期2卷 41-45页

作者： cedrick.T.CHEUNG Chinese Medicine and Acupuncture Association of Canada (C. M. A. A. C. ). London OntarioCanada

This paper discusses the development of Acupuncture Science in Canada,Chinese medicine and acupuncture were probably introduced to Canada in the 1ate 1800’s by theearly Chinese *** Acupuncture Association of Quebec(A.A.Q.)in Montreal wasthe earliest credible *** Wexu,the founder of *** also the Vice-Presi-dent of *** Acupuncture Society in France. Under his leadership the AAQ madesignificant contributions to the development of acupuncture medicine jn *** the provinceof *** Acupuncture Anti-pain Clinic and an Acupuncture Research Center were estab-lished under government by ***(late Chairman of the Department of Anaesthesiaat the University Hospital,under the auspices of the University of Western Ontario)who colla-borated with *** ***,the future President of the Chinese Medicine and Acup-uncture Association of *** to pressures from the Western medical establishment the go-vernment withdrew its fund and as a result this valuable work had to be *** eventproved to be a great hindrance for the development of Chinese medicine and *** *** College of Physicians and Surgeons(C.P.S.O.)and the Acupuncture Foundation ofCanada (A.F.C.)had represented the authority to control the practice of Chinese medicine andacupuncture:qualified practitioners were greatly restricted and prevented from using the title of“doctor”instead of“technicians”.A historicaI turning point occured in 1980-1981 in Ottawa,*** result of a court ruling indicated that Acupuncture was not a part of Western medi-cine and that anyone who hold a legitimate doctorate could use the title of *** August 2 5,*** Chinese Medicine and Acupuncture Association was founded by *** *** historic event marked the establishment of Chinese Medicine and Acupuncture in *** became a Member Society of the World Federation of Acupuncture-Moxibustion Socie-ties(WFAS)in 19

关键词： Acupuncture acupuncture Canada auspices contributions affiliated authority founded earliest doctor

Enhance limit cycle oscillation in a wind flow energy harvester system with fractional order derivatives

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Theoretical & Applied Mechanics Letters 2014年第5期4卷 67-73页

作者： cedrick A.Kitio Kwuimy Grzegorz Litak Center for Nonlinear Dynamics and Control Department of Mechanical EngineeringVillanova University Faculty of Mechanical Engineering Lublin University of Technology

Advances in material science and mathematics in conjunction with tech- nological needs have triggered the use of material and electric components with fractional order physical properties. This paper considers the mathematical model of a piezoelectric wind flow energy harvester system for which the capacitance of the piezoelectric material has fractional order current-voltage characteristics. Additionally the mechanical element is assumed to have fractional order damping. The analysis is focused on the effects of order of derivatives on the appearance and characteristics of limit circle oscillations （LCO）. It is obtained that, the order of derivatives to enhance the amplitude of LCO and lower the threshold condition leading to LCO. The domains of efficiency of the system are illustrated in various parameters spaces.

关键词： nonlinear vibrations fractional derivative energy harvesting piezoelectrictransducer

OVOL1 inhibits breast cancer cell invasion by enhancing the degradation of TGF-β type I receptor

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Signal Transduction and Targeted Therapy 2022年第5期7卷 1842-1859页

作者： Chuannan Fan Qian Wang Gerard van der Zon Jiang Ren cedrick Agaser Roderick C.Slieker Prasanna Vasudevan Iyengar Hailiang Mei Peter ten Dijke Department of Cell and Chemical Biology Leiden University Medical CenterLeiden 2300 RCThe Netherlands Oncode Institute Leiden University Medical CenterLeiden 2300 RCThe Netherlands Department of Biomedical Data Sciences Sequencing Analysis Support CoreLeiden University Medical CenterLeiden 2300 RCThe Netherlands Department of Epidemiology and Data Science Amsterdam Public Health InstituteAmsterdam Cardiovascular Sciences InstituteAmsterdam UMClocation VUmcAmsterdam 1081 HVThe Netherlands

Ovo-like transcriptional repressor 1(OVOL1)is a key mediator of epithelial lineage determination and mesenchymal–epithelial transition(MET).The cytokines transforming growth factor-β(TGF-β)and bone morphogenetic proteins(BMP)control the epithelial–mesenchymal plasticity(EMP)of cancer cells,but whether this occurs through interplay with OVOL1 is not ***,we show that OVOL1 is inversely correlated with the epithelial–mesenchymal transition(EMT)signature,and is an indicator of a favorable prognosis for breast cancer ***1 suppresses EMT.

关键词： invasion breast cancer

Moho Bilondo深水油田完井技术研究

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Moho Bilondo深水油田完井技术研究

作者： LOUDEVO MOUANDA cedrick 中国石油大学(华东)

学位级别：硕士

随着海洋石油装备和钻完井技术的不断发展,深水油气资源逐步成为新的勘探开发领域。Moho Bilondo油田是刚果重点勘探开发的深水油田之一,海水深度在540m30m之间,并且原油粘度大、储层温度低、地层出砂较为严重,在完井和开发方式上具有... 详细信息

随着海洋石油装备和钻完井技术的不断发展,深水油气资源逐步成为新的勘探开发领域。Moho Bilondo油田是刚果重点勘探开发的深水油田之一,海水深度在540m30m之间,并且原油粘度大、储层温度低、地层出砂较为严重,在完井和开发方式上具有一定的挑战性。在调研海洋深水完井技术和最新研究成果的基础上,重点探讨了海洋水平井防砂完井和分段控制完井方法。根据Moho Bilondo油田储层特点,设计了适合该区域的井身结构和以膨胀防砂管为基础的完井管柱结构。在分析Moho Bilondo油田砂岩储层的粒径分布特点的基础上,优选了膨胀防砂管的防砂过滤层参数。针对水平段生产压差不均衡和注水开发问题,研究了水平段分段控制方法,并设计了基管孔径和孔密参数,应用表明,该完井方法不但具有良好的防砂性能,而且可延缓因注水可能造成的底水脊进。海洋深水完井的生产系统极为复杂,本文针对Moho Bilondo两个主要区块,优选了水下生产系统和浮动式采油平台开发方案。该研究成果,为Moho Bliondo油田水平井中后期开发提供了技术支持。

关键词：深水完井稠油分段控制防砂管柱气举采油

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道德型领导对集体福祉的影响研究

道德型领导对集体福祉的影响研究

作者： Ayenon Jean cedrick Stephane 哈尔滨工业大学

学位级别：硕士

正如我们所知,伦理可以干预并涉及生活的所有领域。对于有责任的人来说,成为领导者很重要,这意味着每个人都应该具有领导力,因为每个人都对某事或其他人负责。在这项研究中,其中一项指导方针是基于这样一个事实,即领导力始终是一种道德... 详细信息

正如我们所知,伦理可以干预并涉及生活的所有领域。对于有责任的人来说,成为领导者很重要,这意味着每个人都应该具有领导力,因为每个人都对某事或其他人负责。在这项研究中,其中一项指导方针是基于这样一个事实,即领导力始终是一种道德行为,因为每个领导者都会采取影响他人的行为。无论有人决定与否,他们都在教导责任和道德,无论他们是否尝试。由于我们生活在社区中,如果以错误的方式教授道德或责任,那可能是一场灾难。道德是基于既定的对与错的规范,这些规范通常规定了人类的权利、义务以及他们必须展示的社会利益、公平或特定美德。但是,遵守道德与遵守法律是不同的。一般来说,法律考虑到大多数公民的道德标准。但看到法律偏离道德的情况并不少见。内战前的奴隶制法律和当今南非的旧种族隔离法可以作为偏离道德的法律的例子。对于企业和一般组织而言,道德是一个涉及组织的所有成员、雇主和雇员的概念。学者们强调了管理者道德和员工道德的区别,领导者的道德管理是任何人在分层管理职位和人员管理中的道德。每当讨论伦理相关问题时,领导者的伦理行为一直是学者们最关注的问题。道德领导则被定义为通过个人行为和人际关系展示适当的行为,并通过双向沟通、强化和决策将这种行为推广给追随者。这个定义表明,道德领导不仅仅是一个与业务相关的话题。在每个人的日常生活中都可以而且必须考虑到这一点。因此,正如金布莱斯克拉克在赛义德商学院的一次会议上提到的,所有人都担心道德和道德领导的概念。任何类型的组织的领导者都必须为追随者创造一个道德友好的环境,交流道德问题并充当榜样,无论是在家庭、医院、学校、友谊中,最重要的是在公司。值得注意的是,管理人员在营造道德氛围并最终降低员工不当行为的程度方面发挥着关键作用。我们可以说,道德领导对组织内外人们的道德和不道德行为都有重大影响。人们的幸福感是本研究将分析的另一个变量,因此,了解幸福感研究的背景是必要的,以便更好地理解幸福感的概念和论文中可以采用的方法。关于本论文的研究,幸福被赋予了一个更有趣的定义,即实现目标、幸福和生活满意度的能力。本研究试图评估道德领导如何影响社区的生活,以回答“道德领导能否用作改善社区福祉的工具?”的主要问题。为此,主要目标已分为子目标。该论文是基于有助于实现目标的主要和次要数据分析的定量研究。事实上,文献综述已经给出了在整个工作中使用的道德领导和集体幸福的定义。主要数据分析（调查）试图满足第一个子目标,即了解工作场所领导者的道德与下属的道德行为之间的关系。进行一项调查以从人群中收集主要数据,通过揭示员工对其经理行为的看法对他们自己的道德行为的影响,有助于指出这种关系。主要数据分析基于在科特迪瓦进行的一项调查,126名参与者回答了关于道德行为和受访者对其经理领导力的看法的23个问题的问卷。调查问卷是用法语准备的,法语是科特迪瓦的第一语言。事实上,为了评估科特迪瓦工人对其个人道德和雇主在工作中的道德行为的看法,我们开发了这份问卷。它旨在由在官方组织工作的每个人做出回应,该组织是私人或公共组织。为了接触到更多的受访者,问卷由全国社会保障基金（法文CNPS）的代理人分发,这让更多、更多元化的人可以回答问卷。数据是直接从填写硬拷贝文件的受访者那里实际收集的。除此之外,还发送了电话和电子邮件,以便有相当数量的参与者。对项目的这一部分进行了两项补充分析。第一个是描述性分析,第二个是相关性分析。使用SPSS进行描述性分析,以描述收集到的数据。描述性分析是进行统计分析的重要第一步。它让您了解数据的分布,帮助您检测异常值和拼写错误,并使您能够识别变量之间的关联,从而为进行进一步的统计分析做好准备。除了描述性分析外,还进行了相关性分析。这里的目的是揭示员工的道德行为与其上级领导的道德领导之间的相关性。该分析旨在评估将其经理视为道德领导者的员工是否倾向于比其他人具有更多的道德行为。最重要且可能令人惊讶的结果之一是,根据进行的调查,员工的道德行为与其对员工道德行为的看法之间几乎没有相关性。工作环境中的管理者。这可以解释为,员工只有在工作环境中才能受到领导行为的影响。很明显,将工作环境的行为和行为与员工和领导者的个人和人际关系生活区分开来是很重要的。此外,调查结果显示,无法确定道德领导与公司内可持续发展目标和目标的实现之间存在正相关关系。事实上,下属对环境问题的行为和行动与他们对领导行为的看法独立相关。第二个子目标评估人们的道德实践对其作为社区或社会的整体福祉的影响。为此,从二手数据源中仔细收集二手数据非常重要,这有助于了解超过121个不同的国家。有关这些国家的集体福祉、可持续发展率和道德规范的数据。该分析旨在了解组织是否可以通过其道德行为和可持续发展行动对其社区的福祉产生影响。对于调查后的数据分析,相关性分析作为本论文的适当分析出现。相关分析用于量化两个连续变量之间的关联。

关键词：伦理道德领导道德行为可持续发展集体福祉

基于机器视觉的新生仔猪目标识别方法研究与实现

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南京农业大学学报 2017年第1期40卷 169-175页

作者：张弛沈明霞刘龙申张宏 cedrick Sean Okinda 南京农业大学工学院江苏南京210031

[目的]新生仔猪目标检测是母猪分娩监测的关键环节。[方法]通过自制图像采集器采集母猪分娩视频图像,机器视觉系统获取分娩图像信息,选取Canny算子对图像进行边缘检测,采用Otsu算法对图像进行二值变换,应用滑动平均算法和形态学开运算... 详细信息

[目的]新生仔猪目标检测是母猪分娩监测的关键环节。[方法]通过自制图像采集器采集母猪分娩视频图像,机器视觉系统获取分娩图像信息,选取Canny算子对图像进行边缘检测,采用Otsu算法对图像进行二值变换,应用滑动平均算法和形态学开运算对二值图像滤波消噪,提取图像最大连通域,利用团序列检测算法对母猪目标进行分割,对分割后区域进行仔猪目标识别。[结果]试验结果表明,团序列检测算法能够准确分割出母猪目标,检测仔猪目标的正确率达到95.5%。[结论]提出一种能够有效识别新生仔猪目标的方法,为仔猪的出生预警提供了技术支撑。

关键词：新生仔猪机器视觉团序列检测 Canny算子