Search results for "Lag"
showing 10 items of 3124 documents
In vitro antifungal activity of lactic acid bacteria against mycotoxigenic fungi and their application in loaf bread shelf life improvement
2016
Food spoilage caused by mycotoxigenic fungi represents an important food safety problem. Lactic acid bacteria (LAB) are used as starter cultures in a larger number of food products. In this study, 16 strains of LAB were cultivated in MRS broth under anaerobiosis. Then, cell free supernatants were obtained by centrifugation and their antifungal activity against Aspergillus parasiticus and Penicillium expansum was tested using the disc-diffusion method. Furthermore, the LABs that showed in vitro antifungal activity were used in bread fermentation with yeast in order to study fungal growth inhibition and aflatoxin (AF) reduction in processed bread previously inoculated with A. parasiticus. The…
The implicit motor learning use as a therapeutic tool in frail elderly people
2016
To write, take, walk, talk is a part of our daily. Our motor ability is used to change depending on our environment and our skill, acquired thanks to our experience, learnings, and according to our age. We strive to find optimal solutions, to be more performants, more efficient. But we must be able to discern to act well and act to better discern. This « perception-action » coupling is the basis of the organization of motor control. Human can discern through several sensory systems (Visual, auditory, proprioceptive) intrinsic informations, coming from his own body, and extrinsic informations, from his environment. All of these informations are in the service of the movement and actions of d…
Shared midgut binding sites for Cry1A.105, Cry1Aa, Cry1Ab, Cry1Ac and Cry1Fa proteins from Bacillus thuringiensis in two important corn pests, Ostrin…
2013
First generation of insect-protected transgenic corn (Bt-corn) was based on the expression of Cry1Ab or Cry1Fa proteins. Currently, the trend is the combination of two or more genes expressing proteins that bind to different targets. In addition to broadening the spectrum of action, this strategy helps to delay the evolution of resistance in exposed insect populations. One of such examples is the combination of Cry1A.105 with Cry1Fa and Cry2Ab to control O. nubilalis and S. frugiperda. Cry1A.105 is a chimeric protein with domains I and II and the C-terminal half of the protein from Cry1Ac, and domain III almost identical to Cry1Fa. The aim of the present study was to determine whether the c…
Examining Sources of Farmers’ Knowledge as a Premise Behind Realization of the Smart Village Conception. A Case Study of Opole Region
2019
The aim of the study is to point to the need of doing research on the system of agricultural knowledge and information as a premise behind realization of the conception of smart village in the territorial framework. Accepting the assumption that intelligent agriculture lies at the foundation of transformation of rural areas, the author indicates the role of the system of agricultural knowledge and information in the process of modernization of agricultural holdings. In the article, questionnaire-based survey research was used in relation to the sustainable development of agriculture in Opole Region. In order to assess the level of adaptation of agricultural holdings to economy based on know…
Reconstructing Bronze Age diets and farming strategies at the early Bronze Age sites of La Bastida and Gatas (southeast Iberia) using stable isotope …
2020
The El Argar society of the Bronze Age in the southeast of the Iberian Peninsula (2200–1550 cal BCE) was among the first complex societies in Europe. Its economy was based on cereal cultivation and metallurgy, it was organized hierarchically, and successively expanded its territory. Most of the monumentally fortified settlements lay on steeply sloped mountains, separated by fertile plains, and allowed optimal control of the area. Here, we explore El Argar human diets, animal husbandry strategies, and food webs using stable carbon and nitrogen isotope analysis of charred cereal grains as well as human and animal bone collagen. The sample comprised 75 human individuals from the sites of La Ba…
Updated measurements in vineyards improves accuracy of soil erosion rates
2018
All rights reserved. Vineyards have proven to be one of the most degraded agricultural ecosystems due to very high erosion rates, which are typically measured at fine temporal and spatial scales. Long-term soil erosion measures are rare, but this information may be indispensable for a proper understanding of the vineyard soil system, landscape evolution, and crop production. The stock unearthing method (SUM) is a common topographical measurement technique developed to assess long-term erosion rates. The reliance of the SUM has been questioned and should be replaced by an improved measurement technique. In this paper, we demonstrate the added value (improved accurate, low cost, and faster th…
Validación de un cuestionario para medir retrospectivamente la exposición laboral a plaguicidas
1997
ResumenObjetivosValidar un cuestionario diseñado para medir retrospectivamente la exposición laboral a plaguicidas en un estudio de casos y controles sobre trabajadores expuestos a plaguicidas y malformaciones congénitas.MétodosSe compara la información obtenida mediante una entrevista personal con 56 agricultores con: 1) una entrevista con los empleadores de los agricultores, 2) la observación directa de los lugares de trabajo y 3) un cuestionario que cumplimentaron los agncultores durante la realización del Programa de Capacitación para Manipuladores de Plaguicidas.ResultadosLos índices de exactitud y fiabilidad fueron altos para las variables «cultivos trabajados», «períodos de tratamien…
2017
Short-term effects of different tillage in a sustainable farming system on nematode community structure
2000
This study investigated the effects of different tillage practices on the nematode community structure. The different tillage systems were: untilled control, conventional deep plough, two-layer plough and cultivator. Sampling was carried out in a field experiment at Worrstadt-Rommersheim (Rhineland-Palatinate, Germany) in order to study the effects of these tillage systems in a sustainable farming system. Soil samples were taken every 3 months from June 1994 to March 1995 and divided into two depths of 0–10 and 10–20 cm in order to study the vertical distribution of nematode density and community structure. Nematode density was significantly reduced after the first tillage. The second tilla…