Results 31 to 40 of about 122,740 (230)

Effet de l'activité des insectes pollinisateurs sur la pollinisation et le rendement du tournesol de consommation

open access: yesOilseeds and fats, crops and lipids, 2017
La pollinisation entomophile du tournesol est souvent mentionnée comme un facteur contribuant au rendement et à la qualité de cette culture. Alors que les rendements stagnent depuis une trentaine d'années en France, l'amélioration de la pollinisation des
Fougeroux André   +8 more
doaj   +1 more source

Sintesis 2,6-bis(2?-hidroksibenzilidin)sikloheksanon dari Hidroksibenzaldehid dan Sikloheksanon dengan Katalis Natrium Hidroksida

open access: yesJournal of Tropical Pharmacy and Chemistry, 2015
The synthesis of ciklovalon (HGV-0) analogue was done by substituent modification on aromatic ring. One of the ciklovalon analogues is 2,6-bis(2′-hydroxybenzylidene)cyclohexanone.
Adam M. Ramadhan   +2 more
doaj   +1 more source

Aggregate productivity effect of labour and capital market distortions in Canada

open access: yesCanadian Journal of Economics/Revue canadienne d'économique, EarlyView.
Abstract How efficiently are workers, investment capital, and production distributed across firms in Canada? And how have they varied over time, across regions, and between sectors? To answer these questions, we present novel measures of the degree of resource misallocation over time and space using uniquely detailed firm‐level data (T2‐LEAP) between ...
Yu Chen, Trevor Tombe
wiley   +1 more source

Les facteurs influençant le rendement oléicole : cas de la région de Jijel du Nord-Est algérien

open access: yesOilseeds and fats, crops and lipids, 2019
La région de Jijel, dans le Nord-Est algérien, possède un important potentiel naturel oléicole favorisant une activité économique importante autour de ce produit, notamment dans le milieu rural.
Lachibi Moussa   +2 more
doaj   +1 more source

Comparative assessment of Pasteuria penetrans and three nematicides for the control of Meloidogyne javanica and their effect on yields of successive crops of tomato and melon [PDF]

open access: yes, 1998
Les effects du bromure de méthyle, du diméthyle itaconate (DI), du cadusaphos et de #Pasteuria penetrans$ ont été évalués sur les taux de populations de #Meloidogyne javanica$, l'indice de galles et les rendement de trois cultures maraîchères successives.
Bourijate, M., Eddaoudi, M.
core  

Environmentally adjusted productivity growth and shadow prices for dairy farms

open access: yesCanadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, EarlyView.
Abstract We estimate the environmentally adjusted productivity growth and shadow price for Ontario dairy farms. We use an input‐oriented directional distance function and farm‐level data from 2000 to 2020. First, we find that while GHG emissions per cow increase with higher milk yields, emission intensity decreases as milk yield per cow increases.
Bibek Dahal   +2 more
wiley   +1 more source

Etude de quelques paramètres des huiles de deux variétés (Kalayibantu et Kasaï) de sésame extraites par la méthode mécanique traditionnelle

open access: yesRevue Congolaise des Sciences et Technologies, 2022
Le présent travail a consisté à apprécier le rendement en huile des deux variétés de sésame notamment Kalayibantu et Kasaï ainsi que leurs qualités physico-chimiques en procédant par l’extraction manuelle traditionnelle.
Déborah Kitenge Ngongo   +5 more
doaj   +1 more source

Lateromedial and oblique radiographs detect most fetlock pathologies as effectively as a full series in horses

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Radiographic protocols for the metacarpo‐/tarsophalangeal joint during pre‐purchase examinations (PPE) vary internationally, but their impact on pathology detection remains unclear. Optimising imaging protocols is essential to balance diagnostic accuracy with workflow efficiency and radiation exposure.
A. Northwood, D. Berner
wiley   +1 more source

Cosmetic creams with caprylic acid‐based Natural Eutectic Solvents: Stability, rheology and user perception

open access: yesInternational Journal of Cosmetic Science, EarlyView.
By formulating creams with caprylic acid‐based hydrophobic Natural Eutectic Solvents and assessing their stability, rheological behaviour and sensory properties, this study demonstrates how these systems can act as multifunctional, COSMOS‐compliant ingredients that modulate emulsion characteristics without compromising formulation properties.
Alexis Verger   +7 more
wiley   +1 more source

Recent advances of emergent extraction technologies to enhance bioactive compounds extraction of microalgae—An overview towards application in cosmetics

open access: yesInternational Journal of Cosmetic Science, EarlyView.
Microalgae extracts show immense potential in cosmetics for their bioactivities; emerging extraction techniques enhance bioactive compound yield from microalgae. Abstract Microalgae have attracted significant interest in numerous sectors, particularly in the cosmetic industries, owing to their rich composition of bioactive compounds. This paper aims to
Alireza Mousakhani Ganjeh   +5 more
wiley   +1 more source

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