Search results for "VSA"

Predictions of avian Plasmodium expansion under climate change.

2013

International audience; Vector-borne diseases are particularly responsive to changing environmental conditions. Diurnal temperature variation has been identified as a particularly important factor for the development of malaria parasites within vectors. Here, we conducted a survey across France, screening populations of the house sparrow (Passer domesticus) for malaria (Plasmodium relictum). We investigated whether variation in remotely-sensed environmental variables accounted for the spatial variation observed in prevalence and parasitemia. While prevalence was highly correlated to diurnal temperature range and other measures of temperature variation, environmental conditions could not pre…

Viable Systems Approach and Consumer Culture Theory: A Conceptual Framework

2013

The aim of this study is to depict the relational dynamics between the firm/ brand and the individual/consumer or communities of consumers. To this aim we propose a conceptual framework, integrating the viable systems approach (VSA) with consumer culture theory (CCT), which considers the individual as an active co-maker of the product/brand (‘prosumer’). The VSA view of the firm overcomes the limitations of CCT research, which is mainly focused on the individual, giving little consideration to the other actors in the context. Among the different approaches under the umbrella of viable systems we chose the VSA because of its emphasis on the analysis of the systemic external relations with th…

Valsts sociālās apdrošināšanas aģentūras informācijas sistēmas darbu vadības apakšsistēmas izstrāde

2022

Maģistra darbā tiek pētīts, kas ir darbu vadības sistēma, kādu darbu vadības sistēmu nepieciešams ieviest VSAA (Valsts sociālās apdrošināšanas aģentūra) informācijas sistēmā, kādas programmēšanas valodas tiek izmantotas šīs sistēmas izstrādē un uzturēšanā, kas ir sistēmanalīze un transformācijas rīks, kas tulko no PL/SQL programmēšanas valodas uz VSAA standartizēto sistēmanalīzes valodu. Darbā tiek apskatīti trīs rīki, kurus izmanto VSAA informācijas sistēmas uzturēšanā un izstrādē, kā arī divi rīki, kuri tika ieviesti kopā ar darbu vadības apakšsistēmas izstrādi. Darba prakstiskajā daļā tiek izstrādāta lietotāju saskarne izmantojot aprakstītos rīkus un izpētīta tās funkcionalitāte, kā arī …

Novel group A rotavirus G8 P[1] as primary cause of an ovine diarrheic syndrome outbreak in weaned lambs

2011

International audience; Rotavirus is a worldwide major cause of diarrhea outbreaks in neonatal ruminants. An outbreak of ovine diarrheic syndrome (ODS) in 50-75 days-old lambs (weaned lambs) is described. Fecal immunochromatography and intestinal immunohistochemistry for rotavirus group A were performed. In addition, semi-nested multiplex RT-PCR for G and P rotavirus genotyping in combination with sequencing were performed, to support the diagnosis and identify the viral strain. A novel ovine rotavirus group A G8 P[1] strain was determined as the main cause of the ODS observed, whereas other pathogens were ruled out.

Seasonal diet-based resistance to anticoagulant rodenticides in the fossorial water vole (Arvicola amphibius)

2021

International audience; Anticoagulant rodenticides (AR) resistance has been defined as "a major loss of efficacy due to the presence of a strain of rodent with a heritable and commensurately reduced sensitivity to the anticoagulant". The mechanism that supports this resistance has been identified as based on mutations in the Vkorc1 gene leading to severe resistance in rats and mice. This study evaluates the validity of this definition in the fossorial water vole and explores the possibility of a non-genetic diet-based resistance in a strict herbivorous rodent species. Genetic support was explored by sequencing the Vkorc1 gene and the diet-based resistance was explored by the dosing of vitam…

Regulation of expression of the adhesin AF/R2 of Escherichia coli O103 by bacto-peptoneTM. Preliminary results

1994

Closed-loop bandwidth impact on MVSA for rotor broken bar diagnosis in IRFOC double squirrel cage induction motor drives

2013

This paper investigates the detectability of rotor broken bars in indirect rotor flux oriented control (IRFOC) for variable speed double cage induction motor drives, using vibration signature analysis techniques. The Impact of the closed loop control system cannot be neglected when the detection of rotor asymmetries in the machine is based on the signature analysis of electrical or mechanical variables. Therefore, the investigation of rotor fault components for different bandwidths of closed-loop regulators is necessary to evaluate its relevance in the above listed variables. This paper investigates the impact of the control system on relevance of the fault components computed from axial an…

The sf32 unique gene of Spodoptera frugiperda multiple nucleopolyhedrovirus (SfMNPV) is a non-essential gene that could be involved in nucleocapsid o…

2013

A recombinant virus lacking the sf32 gene (Sf32null), unique to the Spodoptera frugiperda multiple nucleopolyhedrovirus (SfMNPV), was generated by homologous recombination from a bacmid comprising the complete viral genome (Sfbac). Transcriptional analysis revealed that sf32 is an early gene. Occlusion bodies (OBs) of Sf32null contained 62% more genomic DNA than viruses containing the sf32 gene, Sfbac and Sf32null-repair, although Sf32null DNA was three-fold less infective when injected in vivo. Sf32null OBs were 18% larger in diameter and contained 17% more nucleocapsids within ODVs than those of Sfbac. No significant differences were detected in OB pathogenicity (50% lethal concentration)…

André Richir, Anatomy assistant and moulder at the Alfort veterinary school in the 20th Century

2006

Biography of André Richir (1887-1962), one of the most famous anatomical moulders of the 20th Century, including information on his family, his training, his professional activities and his career at the Alfort veterinary school. An inventory of his works and a description of the techniques that he used, namely for anatomic mouldings.

Tiešo nodokļu ieņēmumi valsts budžetā

2016

Nodokļu sistēmai ir veltīta būtiskāka loma valsts ekonomikā, jo tieši no nodokļu ieņēmu-miem veidojas valsts budžets. Nodokļu ieņēmumu apmērs valsts budžetā ir atkarīgs no iz-vēlētas nodokļu politikas. Bakalaura darbā tiek apskatīti ieņēmumi no tiešiem nodokļiem Eiropas Savienībā: Baltijas valsti un citi trīs ES dalībvalsti, kas no ekonomiska viedokļa ir labāk attīstīti. Galvenā problēma ir izvēlēties tādu nodokļu politiku, kas varētu padarīt lab-klājigāku ekonomisko situāciju valstī. Pētījuma galvenie rezultāti parāda kādā mērā atšķiras divu grupu nodokļa ieņēmumu līme-nis valsts budžetos un cik būtiski tas ir atkarīgs no izvēlētas valsts nodokļu politikas. Visās analizētās valstīs ir ES d…