Results 51 to 60 of about 404 (279)

Toward the principles of syncarpous gynoecia classification

open access: yes, 2012
The directions of broadening of the classification of syncarpous gynoecia on the base of the concept of vertical zonality subject to the constructional variants have been ...
Odintsova A.
core   +1 more source

A Computational Approach for Biomimetic Design of Liver‐On‐A‐Chip

open access: yesAdvanced Intelligent Discovery, EarlyView.
A biomimetic liver‐on‐a‐chip with antiparallel perfusion was designed using COMSOL‐guided simulation to replicate hepatic acinus transport. Full‐scale modelling revealed diffusion‐dominated, length‐dependent nutrient gradients and low‐shear conditions.
Zhenxu Yang   +9 more
wiley   +1 more source

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen   +5 more
wiley   +1 more source

Application of Variance-Distance exponential model in geochemical studies of zinc calamine ore deposit (Mehdiabad mining complex of Yazd)

open access: yesJournal of Economic Geology, 2021
Introduction Calamine Zn-Pb deposit (Mehdiabad, Yazd, Central Iran) is a mineable nonsulfide mineralization, located in the upper part of a volcano-sedimentary basin at intersection with erosion surfaces.
Nasrin Sadrmohammadi   +4 more
doaj   +1 more source

Histopathologic Analysis of the Morpho‐Functional Zones of the Human Acetabular Labrum

open access: yesClinical Anatomy, EarlyView.
ABSTRACT The structural and functional adaptation of soft tissues to mechanical load controls their ability to withstand injury and influences their capacity for healing. Similar to the knee meniscus, the acetabular labrum exhibits zonal differences in mechanical load distribution, resulting in distinct regions with unique structural and functional ...
Abdulaziz A. Alomiery   +4 more
wiley   +1 more source

Vertical Zonal Distribution Patterns of Entomopathogenic Fungi in the Changbai Mountain

open access: yesEcology and Evolution
ABSTRACT Entomopathogenic fungi (EPF) are critical drivers of ecosystem processes such as pest regulation and material cycling. However, their distribution patterns and the drivers influencing them along the elevational gradients remain unclear. This study investigated the diversity and distribution of EPF along a
Lichao Feng   +5 more
openaire   +3 more sources

Subthermocline and Intermediate Zonal Currents in the Tropical Pacific Ocean: Paths and Vertical Structure

open access: yesJournal of Physical Oceanography, 2017
AbstractThe mean subthermocline and intermediate zonal circulation in the tropical Pacific is investigated using a compilation of shipboard ADCP measurements and absolute geostrophic velocities constructed from a high-resolution 0–2000-m Argo climatology referenced to a 1000-m velocity field derived from Argo float drifts.
/Cravatte, Sophie   +4 more
openaire   +2 more sources

Simulating past and future refugia for temperate trees in northern Italy

open access: yesEcography, EarlyView.
During the Quaternary, trees responded to the climatic changes of glacial–interglacial cycles with large‐scale range shifts. Over cold glacials, temperate tree species contracted their ranges and survived in areas known as refugia. Several studies point to the Euganean Hills (Colli Euganei), in Veneto, northern Italy, as one of the northernmost ...
Azzurra Pistone   +4 more
wiley   +1 more source

Morphology and vascular anatomyof Galtonia viridiflora I. Verd. (Hyacinthaceae) flower

open access: yesБіологічні студії, 2014
The morphology and vascular anatomy of the flower of Galtonia viridiflora I. Verd. (Ornithogaloideae, Hyacinthaceae) were studied. Each of tepals, and each stamen is supplied by single vascular bundle.
O. O. Dyka
doaj   +1 more source

Influence of the vertical and zonal propagation of stratospheric planetary waves on tropospheric blockings [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2013
AbstractCase studies are used to elucidate the relationship between stratospheric planetary wave reflection and blocking formation in the troposphere. The enhanced upward propagation of a planetary‐scale wave packet from the Eurasian sector, involving a Euro‐Atlantic blocking, leads to a stratospheric sudden warming (SSW).
Kunihiko Kodera   +2 more
openaire   +1 more source

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