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Quantifying Tillage and Vetiver Grass (Vetiveria nigritana Stapf) Strips Spacing Effects on Runoff, Soil Loss and Maize Yield in Southern Guinea Savanna of Nigeria

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Journal of Northeast Agricultural University(English Edition) 2017年第4期24卷 1-18页

作者： Ewetola esther Abosede Department of Crop Production and Soil Science Ladoke Akintola University of Technology Ogbomoso Oyo State 234 Nigeria

Soil erosion induced by inappropriate tillage remains a serious problem on many agricultural fields in the humid tropics. Studies were conducted between 2004 and 2006, on an Alfisol in Ogbomoso in the Southern Guinea Savanna of Nigeria to evaluate the effectiveness of Vetiver Grass(Vetiveria nigritana) Strips(VGS) under different tillage systems. The experiment was split-plot laid out in a randomized complete block design with two replications on 6% slope with 18 runoff plots. Main plot treatments were tillage systems; Manual Clearing(MC), Ploughing(P) and Ploughing plus Harrowing(PH). Subplot treatments were VGS spaced at intervals of 5 m(eight strips) and 10 m(four strips) with the control(no-vetiver). Runoffs and soil losses were collected after each major storm. Chemical analyses of eroded sediments and runoff were determined. Data were analyzed using ANOVA at p<0.05. The results showed that tillage had no significant reduction in runoffs and soil losses, but they were reduced with MC compared with P and PH. Mean total runoff on 5 and 10 m VGS plots were significantly(p<0.05) lower than that of the control by 74.4% and 45.0%, respectively. Corresponding soils loss on 5 and 10 m VGS plots were 27.1% and 53.5%, respectively. Mean NO3-N levels in runoff water were lower under PH plots than those under MC plots by 79.0% and 66.5%, respectively in 2004 and 2006 growing seasons. VGS spaced at 5 m significantly(p<0.05) reduced NO3-N loss than the control by 108.8% in 2004. Nutrients loads of eroded sediments were consistently higher for the control(no-vetiver) plots and least for 5 m VGS plot. Carbon, nitrogen and phosphorus contents of eroded sediments were 90%-92.4%, 83%-83.6% and 97%-97.8%, respectively, and were lower on 5 m than other treatments. Maize grain yield was significantly(p<0.05) affected by both tillage and VGS spacing only in 2005 growing season. P plot produced higher grain yield than MC and PH by 79.9% and 99.1%, respectively. Also, grain yield on VG

关键词： tillage vetiver grass strip runoff soil loss maize yield

The Road to the Integration of International Migrants： The Case of the Work Integration Social Enterprises

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Sociology Study 2012年第11期2卷 868-879页

作者： Maria esther Aretxabala University of Deusto Spain

This paper reports some first results obtained from a study conducted on work integration social enterprises （WISEs） in the framework of the social and solidarity economy （SSE） and the integration of international migrants. WISEs, as hybrid transit companies, go beyond a pure economic rationale, enabling labor and social inclusion for disadvantaged groups, international migrants included, through an insertion process in a real job performance environment. Therefore, WISEs should be understood as valuable mechanisms for achieving optimal levels of personal empowerment and social and labor integration in their active use and enhancement of these employees＇ capacities and competences. All of these aspects of WISEs have an impact on social justice in helping construct a more inclusive growth and society and foster the integration of international migrants.

关键词： Integration labor and social inclusion international migration work integration social enterprises (WISEs) social andsolidarity economy (SSE)

The Contradiction between Two Versions of Quantum Theory Could Be Decided by Experiment

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Journal of Modern Physics 2019年第10期10卷 1190-1208页

作者： María esther Burgos Faculty of Sciences University of Los Andes Mérida Venezuela

The incompatibility of Orthodox Quantum Mechanics with philosophical realism poses a serious challenge to scientists upholding such a philosophical doctrine. The desire to find a solution to this and other conceptual problems that quantum mechanics confronts has motivated many authors to propose alternative versions to Orthodox Quantum Mechanics. One of them is the Spontaneous Projection Approach, a theory grounded on philosophical realism. It has been introduced in previous papers and, with a few exceptions, it yields experimental predictions coincident with those of Orthodox Quantum Mechanics. One of these exceptions is analyzed in detail. The difference in predictions becomes apparent in a suggested experiment which could put both theories to the test.

关键词： Philosophical Realism Orthodox Quantum Mechanics Spontaneous Projection Approach Quantum Measurement Problem

Contraceptive behaviors and awareness in an urban slum community of south India

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Asian pacific Journal of Reproduction 2024年第4期13卷 160-168页

作者： Monica Albert Sekhar Shanthi Edward Angeline Grace Sushmitha G Shirley esther Priscilla Department of Community Medicine Sree Balaji Medical College and Hospital(SBMCH)ChennaiIndia

Objective:To assess the factors associated with knowledge,attitude and behavior of contraception use among urban slum population in ***:A cross-sectional study was conducted in the urban slum of Anakaputhur,*** couples between ages of 19-49 years and living in slum areas were taken up for the study by simple random *** women,postnatal and postmenopausal women were excluded from the *** collection was done using a pretested structured questionnaire focusing on details regarding contraception knowledge,attitude,and *** analysis was done using IBM SPSS version *** test like Chi square and odds ratio(OR)were used to identify association between knowledge,attitude,and behavior of contraception with the associated variables and enter method of logistic regression analysis was ***:Out of the 360 respondents,228 were females,with a mean age of(34±5)*** 43%demonstrated adequate knowledge of contraception use,and 91%were aware of at least one contraceptive ***,72%exhibited a positive attitude towards contraceptive ***,43%(155 individuals)did not utilize any contraceptive *** contraceptive users,intrauterine devices were the most commonly adopted,followed by barrier methods and female *** was significant association between knowledge of contraception and education(aOR 7.29,95%CI 2.93-18.10,P<0.05),age(aOR 2.04,95%CI 1.19-3.50,P<0.05)and socioeconomic class(aOR 3.66,95%CI 1.71-7.85,P<0.05;aOR 3.97,95%CI 2.12-7.49,P<0.05).Regarding attitude towards contraception use,education(aOR 8.54,95%CI 2.35-31.03,P<0.05),sex(aOR 0.15,95%CI 0.06-0.37,P<0.05),age(aOR 0.53,95%CI 0.28-0.99,P<0.05),socio-economic class(aOR 4.42,95%CI 1.97-9.92,P<0.05;aOR 9.83,95%CI 3.63-26.58,P<0.05)and number of children(aOR 10.04,95%CI 4.26-23.66,P<0.05)were the variables that had a significant ***:These findings underscore the imperative for enhanced d

关键词： Family planning Unmet need Sterilization Knowledge Practice Urban slum

Zeno of Elea Shines a New Light on Quantum Weirdness

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Journal of Modern Physics 2017年第8期8卷 1382-1397页

作者： María esther Burgos Department of Physics University of Los Andes Mérida Venezuela

After a brief reference to the quantum Zeno effect, a quantum Zeno paradox is formulated. Our starting point is the usual version of Time Dependent Perturbation Theory. Although this theory is supposed to account for transitions between stationary states, we are led to conclude that such transitions cannot occur. Paraphrasing Zeno, they are nothing but illusions. Two solutions to the paradox are introduced. The first as a straightforward application of the postulates of Orthodox Quantum Mechanics;the other is derived from a Spontaneous Projection Approach to quantum mechanics previously formulated. Similarities and differences between both solutions are highlighted. A comparison between the two versions of quantum mechanics, supporting their corresponding solutions to the paradox, shines a new light on quantum weirdness. It is shown, in particular, that the solution obtained in the framework of Orthodox Quantum Mechanics is defective.

关键词： Quantum Weirdness Quantum Measurements Spontaneous Quantum Jumps Time Dependent Perturbation Theory Quantum Zeno Paradox

Computational Resolution of a Boolean Equation of 21 Variables

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American Journal of Operations Research 2022年第5期12卷 157-178页

作者： esther Claudine Bitye Mvondo Department of Mathematics University of Yaounde I Yaounde Cameroon

The Alienor method has been elaborated at the beginning of the 1980s by Yves Cherruault and Arthur Guillez (1983). The following people have also greatly contributed to the improvement of this new optimization method: Blaise Somé, Gaspar Mora, Balira Konfé, Jean Claude Mazza and esther Claudine Bityé Mvondo. The basic idea consists in using a reducing transformation allowing us to simplify a multivariable optimization problem to a new optimization problem according to a single variable. The rational gestion of enterprises leads generally to the use of Operational Research, often called management science. The term Operational Research means a scientific approach to decision making, that seeks optimization in a system. Consequently, it is better to take the right decisions. Otherwise, fatal consequences can occur instantaneously [1]. Generally, we have to maximize the global profit margin, taking into account some constraints. For instance, in an integer programming problem, some or all the variables are required to be nonnegative integers. In this paper, we present new reducing transformations for global optimization in integer, binary and mixed variables as well as the applications in Boolean algebra by solving a Boolean Equation of 21 variables. The applications in Operational Research are presented on various examples, resolved by using the tabulator Excel of Microsoft.

关键词： Alpha-Dense Curves Boolean Equations Diophantine Equations Global Optimization and Operational Research

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利用颜色的非刚性物体跟踪方法(英文)

自动化学报 2003年第3期29卷 345-355页

作者： Katja Nummiaro esther Koller-Meier Luc Van Gool Katholieke Universiteit Leuven Swiss Federal Institute of Technology (ETH)Katholieke Universiteit Leuven ESAT/PSI-VISICS Kasteelpark Arenberg 10 3001 Heverlee BelgiumD-ITET/BIWI Gloriastrasse 35 8092 Zurich SwitzerlandESAT/PSI-VISICS Kasteelpark Arenberg 10 3001 Heverlee Belgium Swiss Federal Institute of Technology (ETH) D-ITET/BIWI Gloriastrasse 35 8092 Zurich Switzerland

提出了一个利用颜色特征实时跟踪非刚性物体的方法 .首先 ,建立了一个颜色分布模型 ,该模型对部分遮挡具鲁棒性 ,对放缩和旋转具不变性 ,且计算简单 .对非刚体物体的实时鲁棒跟踪是一个非常有挑战性的课题 ,本文提出了利用颜色特征实时... 详细信息

提出了一个利用颜色特征实时跟踪非刚性物体的方法 .首先 ,建立了一个颜色分布模型 ,该模型对部分遮挡具鲁棒性 ,对放缩和旋转具不变性 ,且计算简单 .对非刚体物体的实时鲁棒跟踪是一个非常有挑战性的课题 ,本文提出了利用颜色特征实时跟踪非刚体物体的方法 .首先 ,建立了一个颜色分布模型 ,该模型对部分遮挡具有鲁棒性 ,对放缩具有不变性 ,而且计算简单 .然后 ,采用粒子滤波的方法将颜色分布模型集成到一个动态状态估计的概率框架中 .为了处理光照变化等引起的外貌变化 ,进一步引入自适应模型更新过程 .同时。

关键词：非刚性物体跟踪方法颜色颜色分布模型 Bhattacharyya系数鲁棒性

Microstructure and wear characterization of AA2124/4wt.%B4C nano-composite coating on Ti-6Al-4V alloy using friction surfacing

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Transactions of Nonferrous Metals Society of China 2019年第6期29卷 1263-1274页

作者： I. esther I. DINAHARAN N. MURUGAN Department of Mechanical Engineering Anna University Chennai 600025 Tamil Nadu India Department of Robotics and Automation Engineering PSG College of Technology Coimbatore 641004 Tamilnadu India Department of Mechanical Engineering Science University of Johannesburg Auckland Park Kingsway Campus Johannesburg 2006 South Africa

This work is focused on developing AA2124/4 wt.%B4 C nano-composite coatings on Ti-6 A1-4 V using friction surfacing to improve the wear resistance. The composite was produced using conventional stir casting method and coatings were laid using an indigenously-developed friction surfacing machine. The rotational speed of the mechtrode was varied. The microstructure of the composite coating was observed using conventional and advanced microscopic techniques. The sliding wear behavior was evaluated using a pin-on-disc apparatus. The coating geometry(thickness and width) increased with increased rotational speed. The interface was straight without thick intermetallic layer. Homogenous distribution of nano B4C particles and extremely fine grains was observed in the composite coating. The interfacial bonding between the aluminum matrix and B4C particles was excellent. The composite coating improved the wear resistance of the titanium alloy substrate due to the reduction in effective contact area,lower coefficient of friction and excellent interfacial bonding.

关键词： aluminum matrix composite titanium friction surfacing coating wear

Diagnosis of Laron syndrome using monoplex-polymerase chain reaction technology with a whole-genome amplification template: A case report

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World Journal of Clinical Cases 2019年第23期7卷 4029-4035页

作者： Adina Neumann Miguel Angel Alcantara-Ortigoza Ariadna Gonzalez-del Angel Felipe Camargo-Diaz esther Lopez-Bayghen Laboratorio de Investigacion y Diagnostico Molecular Instituto de Infertilidad y Genetica Mexico SCINGENESMexico City 05320Mexico Instituto Nacional de Pediatria Torre de InvestigacionMexico City 04530Mexico Laboratorio de Biologia Molecular Departamento de Genetica HumanaInstituto Nacional de PediatriaMexico City 04530Mexico Departamento de Toxicologia Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional(CINVESTAV-IPN)Mexico City 07360Mexico

BACKGROUND Laron syndrome(LS)is an autosomal recessive hereditary condition affecting only 1/1000000 *** cause is associated with mutations in the growth hormone(GH)receptor(GHR),leading to GH *** patients typically present with severe growth retardation,obesity,and abnormal sexual ***,LS diagnosis is performed ***,we assessed the efficiency of Pre-implantation Genetic Testing(PGT)coupled with monoplex-polymerase chain reaction(PCR)technology for detecting this monogenic disease in embryos from a couple confirmed as LS heterozygous carriers CASE SUMMARY The couple LS-carriers were confirmed by the presence of a first child born with *** couple underwent a standard in vitro fertilization(IVF)*** was collected from trophectoderm cells from day 5 *** genome amplification(WGA)was performed using a Sureplex DNA Amplification System and analyzed by PCR,targeting the deletion of the exons 5 and 6 in the GHR gene as well as PGT by Next-generation Sequencing(Illumina).Eleven embryos were collected and analyzed.27.3%were the wild type for GHR,45.5%were heterozygotes,and 18.2%homozygous *** embryo yielded no *** 2-embryos transfers were performed;2 normal homozygous and four heterozygous carriers were selected for *** first two transfers were unsuccessful,whereas the final transfer with two heterozygous embryos resulted in clinical *** genomic composition of the fetus was verified,applying the same techniques using amniocytes,extracted after 21 wk of the ongoing *** fetus was confirmed as GHR deletion in exon 5-6,carrier.A non-affected baby was *** Here,we present a case demonstrating that using WGA as a template in addition to PCR targeting specific gene regions,exons 5 and 6 on the GHR gene,could identify LS carrier *** provides evidence that WGA and PCR serve as an excellent tool to detect this specific monogenic disease in IVF e

关键词： Growth hormone insensitivity Growth hormone receptor mutations Intragenic deletions Molecular diagnosis Embryo diagnosis Laron syndrome Case report