Results 21 to 30 of about 373,561 (299)

Preliminary Study on the Control of Cucumber Green Mottle Mosaic Virus in Commercial Greenhouses Using Agricultural Disinfectants and Resistant Cucumber Varieties

open access: yesAgronomy, 2020
Cucumber green mottle mosaic virus (CGMMV) is a re-emerging threat to greenhouse cucumber and other Cucurbitaceae crop production worldwide. This seed-borne virus can easily spread from a contaminated seeds to seedlings and to adjacent plants through ...
Walid Ellouze   +4 more
doaj   +1 more source

Typologie des aviculteurs dans la zone du Cap-Vert au Sénégal

open access: yesRevue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1997
Afin de caractériser les aviculteurs de la région de Dakar au Sénégal, une typologie concernant 174 élevages a été réalisée. Elle a permis de mettre en évidence cinq types d'aviculteurs : petits élevages urbains produisant des poulets de chair lors des ...
Brigitte Arbelot   +3 more
doaj   +1 more source

Customizing Sanitization Protocols for Food-Borne Pathogens Based on Biofilm Formation, Surfaces and Disinfectants—Their Two- and Three-Way Interactions

open access: yesApplied Microbiology, 2023
Food-borne pathogens are a serious challenge in food handling, processing, and packaging systems. The growth of microbial biofilms on food handling surfaces further complicates the management of the microbial contamination of food.
Manju Kundu   +7 more
doaj   +1 more source

Does Diversification Cause the 'Diversification Discount'? [PDF]

open access: yes, 2000
This paper examines whether the discount of diversified firms can actually be attributed to diversification itself, using recent econometric developments about causal inference with non-experimental data. The effect of diversification on firm value is unbiasedly estimated by matching diversified and single-segment firms on the propensity score??the ...
openaire   +2 more sources

Search Result Diversification [PDF]

open access: yesFoundations and Trends® in Information Retrieval, 2015
Ranking in information retrieval has been traditionally approached as a pursuit of relevant information, under the assumption that the users’ information needs are unambiguously conveyed by their submitted queries. Nevertheless, as an inherently limited representation of a more complex information need, every query can arguably be considered ambiguous ...
Rodrygo L. T. Santos   +2 more
openaire   +1 more source

The Anatomy of Bank Diversification [PDF]

open access: yes, 2006
We use panel data from nine countries over the period 1996 to 2003 to test how revenue diversi-fication in conjunction with increasing bank size affects bank value. Using a comprehensive framework for bank performance measurement, we find no evidence for
Elsas, Ralf   +2 more
core   +1 more source

Enquête sur la prévalence sérologique des principales pathologies aviaires au Sénégal : mycoplasmoses, pullorose, typhose, maladie de Newcastle, maladie de Gumboro et bronchite infectieuse

open access: yesRevue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1997
Dans la zone du Cap-Vert au Sénégal, une enquête a été réalisée en aviculture villageoise et industrielle durant la saison des pluies de 1995 et la saison sèche de 1996 afin de connaître la prévalence sérologique des mycoplasmoses, de la pullorose ...
Brigitte Arbelot   +5 more
doaj   +1 more source

Corporate diversification and R&D intensity dynamics [PDF]

open access: yes, 2007
We study the dynamic bidirectional relationship between firm R&D intensity and corporate diversification, using longitudinal data of Spanish manufacturing companies.
Forcadell, Francisco Javier   +1 more
core   +1 more source

Molecular Analysis of Bacterial Isolates From Necrotic Wheat Leaf Lesions Caused by Xanthomonas translucens, and Description of Three Putative Novel Species, Sphingomonas albertensis sp. nov., Pseudomonas triticumensis sp. nov. and Pseudomonas foliumensis sp. nov.

open access: yesFrontiers in Microbiology, 2021
Xanthomonas translucens is the etiological agent of the wheat bacterial leaf streak (BLS) disease. The isolation of this pathogen is usually based on the Wilbrink’s-boric acid–cephalexin semi-selective medium which eliminates 90% of other bacteria, some ...
James T. Tambong   +6 more
doaj   +1 more source

Aphanomyces euteiches: A Threat to Canadian Field Pea Production

open access: yesEngineering, 2018
Field pea (Pisum sativum var. arvense L.) is an important legume crop around the world. It produces grains with high protein content and can improve the amount of available nitrogen in the soil.
Longfei Wu   +6 more
doaj   +1 more source

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