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Interests of livestock Activities within Agroforestry systems in Guadeloupe: stakeholders’ Opinions and Farmers’ Perceptions

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Agricultural sciences 2022年第12期13卷 1379-1395页

作者： G. Alexandre A. Cheval j. Perrette C. Barlagne j. l. Diman A. Fanchone A. Vinglassalon INRAE ASSET Petit-Bourg France INRAE ASTRO Petit-Bourg France social Economics and Geographical Sciences Group The James Hutton Institute Aberdeen Scotland INRAE UE PEYI Petit-Bourg France syaprovag Petit-Bourg France

The Valab project (Integrated Ecosystemic value-enhancement of the Guadeloupean Forest Agrobiodiversity) is a participatory action research that aims to explore the feasibility of diversification activities within the forest understorey. In the exploratory phase of the project, we studied stakeholders’ opinions on the positive and negative impacts of introducing livestock activities within a forest environment, as well as breeders’ constraints or motivations for setting up livestock units within agroforestry systems in the private forests of Guadeloupe. To establish a diagnosis of the current situation, 51 stakeholders (st) and 49 farmers (Fr) were interviewed on their perceptions, opinions, motivations and preferences. Forty-one percent of the st has had a generally positive appreciation of livestock activities, while on the opposite 31% have had a resolutely negative posture depending on their area of expertise. Their views on the possible positive effects or negative interactions between livestock and agroforestry activities were analysed in order to suggest possible approaches for the authorities or associations. Unanimously, the farmers replied that their motivations followed economic strategies: for self-consumption or sale. But their decision-making processes were also non-economic. Many of them (36% Fr) gave importance to their activity in the construction of their identity, whether it was through a desire to perpetuate traditions or to maintain family activities. The main constraints identified were natural constraints (61% Fr), including topography, climate and predators. While 28% of Fr notified their motivations for environmental protection. Another constraint was of a technical nature (44% Fr) since farmers asked for more technical references or support services. Further researches are required to study the interactions between animals and the undergrowth by describing their respective ecosystem services in order to enhance their positive interactions.

关键词： Actor’s Perceptions Expert’s Opinions Farmer’s Motivations Crop-livestock-Forestry system

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Utility of droplet digital polymerase chain reaction for studying somatic mosaicism:brain malformations and beyond

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Neural Regeneration Research 2023年第11期18卷 2389-2390页

作者： Wei shern lee Paul j.lockhart Bruce lefroy Centre Murdoch Children’s Research InstituteParkvilleVICAustralia Department of Paediatrics The University of MelbourneParkvilleVICAustralia

somatic variants and how to find them:One major challenge in studying somatic mosaicism is the low abundance of potentially pathogenic somatic variant(s).Unlike inherited germline variants,which are essentially present in all cells,pathogenic somatic variants only exist in a subset of cells and may be present at very low (llele frequency (VAF).Despite the low VAF,these somatic variants are disease-relevant and considered *** the context of focal brain malformations,which constitute a frequent cause of drug-resistant focal epilepsy,a pathogenic somatic mammalian ta rget of rapamycin (MTOR)variant with a VAF of 0.3%has been described(Baldassari et al.,2019).The identification of pathogenic somatic variants has importa nt implications both clinically and biologically.

关键词： epilepsy beyond

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On the Variability of Charleston south Carolina Winds, Atmospheric Temperatures, Water levels, Waves and Precipitation

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International journal of Geosciences 2021年第5期12卷 499-516页

作者： l. j. Pietrafesa P. T. Gayes s. Bao T. Yan D. A. Dickey D. D. Carpenter T. G. Carver Coastal Carolina University Conway South Carolina USA North Carolina state University Raleigh North Carolina USA shaw University Raleigh North Carolina USA

Atmospheric winds, air temperatures, water levels, precipitation and oceanic waves in the Charleston south Carolina (sC) coastal zone are evaluated for their intrinsic, internal variability over temporal scales ranging from hours to multi-decades. The purpose of this study was to bring together a plethora of atmospheric and coastal ocean state variable data in a specific locale, to assess temporal variabilities and possible relationships between variables. The questions addressed relate to the concepts of weather and climate. Data comprise the basis of this study. The overall distributions of atmospheric and coastal oceanic state variable variability, including wind speed, direction and kinematic distributions and state variable amplitudes over a variety of time scales are assessed. Annual variability is shown to be highly variable from year to year, making arithmetic means mathematically tractable but physically meaningless. Employing empirical and statistical methodologies, data analyses indicate the same number of intrinsic, internal modes of temporal variability in atmospheric temperatures, coastal wind and coastal water level time series, ranging from hours to days to weeks to seasons, sub-seasons, annual, multi-year, decades, and centennial time scales. This finding demonstrates that the atmosphere and coastal ocean in a southeastern U.s. coastal city are characterized by a set of similar frequency and amplitude modulated phenomena. Kinematic hodograph descriptors of atmospheric winds reveal coherent rotating and rectilinear particle motions. A mathematical statistics-based wind to wave-to-wave algorithm is developed and applied to offshore marine buoy data to create an hour-by-hour forecast capability from 1 to 24 hours;with confidence levels put forward. This affectsspan style="font-family:Verdana;"> a different approach to the conve

关键词： Charleston Atmospheric Temperature Winds Water level Precipitation Oceanic Waves Temporal scales of Variability Kinematics of the Winds Winds Predict Waves

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NVEsTIGATION OF PRODUCTOPN OF FUNCTIONAllY GRADIENT MATERIAl BY ElECTROlEss PlATING

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Acta Metallurgica sinica(English letters) 1999年第4期12卷 678-683页

作者： Z.M.Xu1) ,j.s.Zhen1) ,H.F.liu1) and l.M.Zhang2) 1)Departent of Chemistry , Huazhong University of science and Technology, Wuhan 430074 ,China 2)Institute of Materials science and Engineering, Wuhan University of Technology, Wuhan 430070 ,China

Thispaper proposed a new methodof producing Ceramic/ Metalfunctionally gradient mate rialby electroless platingtechnique. The experimentof producing siC/ Ni PFGM wascar ried out with self made electroless plating facilities. The results show that the thickness of FGMcoating andthegradientdistribution ofcompositioncanbecontrolled byoptimizingelec trolessplating technology and changing the parameters such as plating time, the additionspeed and concentration of siCparticles. Analysisdemonstratesthatthereisastrongrelation ship amongthe siCcontent,the microstructureandthe mechanicalproperty ofthe FGM.

关键词： electrolessplating functionally gradient material siC/ Ni

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Neurodevelopmental defects as a primer of neurodegeneration:lessons from spinal muscular atrophy and Huntington's disease

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Neural Regeneration Research 2023年第9期18卷 1952-1953页

作者： stuart j.Grice ji-long liu Medical Research Council Functional Genomics Unit Department of PhysiologyAnatomy and GeneticsUniversity of OxfordOxfordUK school of life science and Technology ShanghaiTech UniversityShanghaiChina

Developmental motifs in neurodegeneration:Neurodegeneration,the prominent feature of neurodegenerative disease,is characterized by the progressive and selective loss of neuronal *** some of the pathologies caused by neurodegeneration may be irreversible,early intervention will be required for the treatments that aim to slow or halt the manifestation of these ***,neurodegeneration evokes the idea of a progressive decline of brain function.

关键词： neurodegeneration Huntington function

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Applying the Wiener-Hermite Random Technique to study the Evolution of Excess Weight Population in the Region of Valencia (spain)

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American journal of Computational Mathematics 2012年第4期2卷 274-281页

作者： j.-C. Cortés j.-V. Romero M.-D. Roselló R.-j. Villanueva Instituto Universitario de Matemática Multidisciplinar Universitat Politècnica de València Valencia Spain

This paper proposes a stochastic model to study the evolution of normal and excess weight population between 24 - 65 years old in the region of Valencia (spain). An approximate solution process of the random model is obtained by taking advantage of Wiener-Hermite expansion together with a perturbation method (WHEP). The random model takes as starting point a classical deterministic sIs—type epidemiological model in order to improve it in several ways. Firstly, the stochastic model enhances the deterministic one because it considers uncertainty in its formulation, what it is considered more realistic in dealing with a complex problem as obesity is. secondly, WHEP approach provides valuable information such as average and variance functions of the approximate solution stochastic process to random model. This fact is remarkable because other techniques only provide predictions in some a priori chosen points. As a consequence, we can compute and predict the expectation and the variance of normal and excess weight population in the region of Valencia for any time. This information is of paramount value to both doctors and health authorities to set optimal investment policies and strategies.

关键词： Random sIs Type—Epidemiological Model Wiener—Hermite Expansion Perturbation Method

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高速铁路和城市化的互动机制研究——基于系统动力学

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城市规划学刊 2014年第3期 120-120页

作者： lIU j s KE X s GUAN Z l 顾浩

当前,中国高速铁路网的建设全面推进,城市间联系不断强化,整合程度不断加深。但是,高铁建设亦面临着建设资金短缺,投资回报估算困难等诸多问题,而其中一个关键问题就是高铁建设对于设站城市城镇化进程究竟带来怎样影响。本文选取全国第... 详细信息

当前,中国高速铁路网的建设全面推进,城市间联系不断强化,整合程度不断加深。但是,高铁建设亦面临着建设资金短缺,投资回报估算困难等诸多问题,而其中一个关键问题就是高铁建设对于设站城市城镇化进程究竟带来怎样影响。本文选取全国第一条高速客运专线,也是中国第一条时速300Km以上的城际高铁——京津高铁为对象,使用系统动力学(sD模型)为理论基础/研究方法,具体分析了高铁建设对于北京与天津两市城镇化的影响情况。

关键词：高铁建设北京天津户籍人口高速铁路系统动力学系统动态学高速铁路网

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Evaluation of titanium dental implants after early failure of osseointegration by means of X-ray photoelectron spectoscopy, electron microscopy and histological studies

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journal of Biomedical science and Engineering 2010年第11期3卷 1073-1077页

作者： P. lázaro M. Herrero F. j. Gil 不详

In this work, we analysed 56 clinically failed and retrieved implants by means of scanning electron microscopy (sEM), X-ray photoelectron spectroscopy (XPs) and histological studies. The surface contamination was compared to that of unused control implants and with that of the same implants after cleaning in a basic medium. The surfaces of the unused implants presented considerable contamination. In particular, high levels of carbon were detected. The nature of this C was elucidated by XPs analysis of the lubricant used in the machining process. The same contamination was observed in the retrieved implants. Histological studies were carried out by means of light microscopy. Fibrosis and granulomatous lesions were detected in the tissues. XPs analysis indicated the presence of traces of other elements (Na, Ca, Zn, s, F, etc.) that were not related to impurities in cpTi. We examined a cleaning process in a basic medium that eliminates the organic components of the implant surfaces. The cleaned implants were implanted in the patients and the results were excellent. None of the implants failed in following 7 months.

关键词： Dental Implant Titanium Contamination Osseointegration

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study of the Adhesion of Clinical strains of staphylococcus aureus on an Abiotic surface Using the Biofilm Ring Test^(█)

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journal of Biomaterials and Nanobiotechnology 2012年第4期3卷 547-556页

作者： j.M.liesse Iyamba N.B.Takaisi-Kikuni s.Dulanto j.P.Dehaye laboratoire de Chimie biologique et medicale et de Microbiologie pharmaceutique Faculte de PharmacieUniversite libre de BruxellesBrusselsBelgium laboratoire de Microbiologie Experimentale et Pharmaceutique Facultedes Sciences Pharmaceu-tiquesUniversite de KinshasaDemocratic Republic of Congo

Four methicillin-sensitive (MssA) and 4 methicillin-resistant (MRsA) strains of staphylococcus aureus were collected and isolated at the laboratory of Bacteriology of the Provincial General Reference Hospital of Kinshasa in the Democratic Republic of Congo. The microbial adhesion to solvents (MATs) test showed that the MRsA strains had a less hydrophobic membrane than the MssA strains. Using the Biofilm Ring Test? (BFRT?) to investigate on the adhesion of these bacterial strains to smooth surfaces, we observed that the MssA strains adhered more rapidly than the MRsA strains. The biomass of the produced biofilm measured by the Crystal violet staining method (CVsM) was more important with MssA than with MRsA strains. Ethylene glycol-bis(2-aminoethylether)-N,N,N',N'-tetraacetic acid (EGTA) inhibited the adhesion and the formation of a biofilm by MRsA strains;this inhibition was reversed by calcium, magnesium and manganese. The MRsA strains adhered less to silicon tubing and the adhesion was inhibited by EGTA in 2 of the 4 MRsA strains and none of the MssA strains. In conclusion, the MssA and MRsA strains adhered on an abiotic surface and formed a biofilm at distinct rates and with different sensitivities to ions. The results also confirm the utility as well as the limits of the BFRT? to study the adhesion of bacteria on a surface.

关键词： Biofilm Ring Test^(█) Crystal Violet Cell surface Hydrophobicity Adhesion Catheter Tube

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不整合型铀矿床的垂向体系

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世界核地质科学 1988年第4期 39-40页

作者： V.j.Wall j.D.jokuston s.l.Koul 彭召海

本文考察了澳大利亚北部地区东阿利盖特河铀矿区(EARUF)脆性-韧性构造的展布与发育状况,该构造控制着矿化的分布与有关的蚀变。从而提出与不整合有关的铀矿床的局部垂向体系的一般模式。引用了裂变径述资料,并和流体包裹体和稳定同位素... 详细信息

本文考察了澳大利亚北部地区东阿利盖特河铀矿区(EARUF)脆性-韧性构造的展布与发育状况,该构造控制着矿化的分布与有关的蚀变。从而提出与不整合有关的铀矿床的局部垂向体系的一般模式。引用了裂变径述资料,并和流体包裹体和稳定同位素资料一起,来说明与其有关的大的热液系统。

关键词：铀矿床矿化稳定同位素无机化垂向不整合面矿物包体流体包裹体蚀变中元古界地层盖层矿石蒸发岩构造控制

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