Results 31 to 40 of about 302,538 (365)

Morphological and anatomical investigations of Chamenerion angustifolium (L.) Scop .) growing in the Northern Caucasus region

open access: yesФармация и фармакология (Пятигорск), 2016
The article covers the results of the study for micromorphological signs of leaf, stem, petiole of Chamenerion angustifolium (L.) Scop., from Onagraceae family, which grows in the Northern Caucasus, necessary to establish raw materials authenticity.
F. K. Serebryanaya, I. I. Posevin
doaj   +1 more source

Development of a vision system for a technological line for sorting apple fruits based on an artificial neural network

open access: yesАграрная наука Евро-Северо-Востока, 2023
This article describes the process of creating a training sample of an artificial neural network (hereinafter – ANN) of a vision system. Training the ANN was carried out on the basis of annotated images of real apples containing a description of various ...
P. P. Kazakevich   +2 more
doaj   +1 more source

Quantitative microscopy of the Drosophila ovary shows multiple niche signals specify progenitor cell fate. [PDF]

open access: yes, 2017
Adult stem cells commonly give rise to transit-amplifying progenitors, whose progeny differentiate into distinct cell types. It is unclear if stem cell niche signals coordinate fate decisions within the progenitor pool.
Burrous, Haley   +4 more
core   +2 more sources

The proppin Bcas3 and its interactor KinkyA localize to the early phagophore and regulate autophagy [PDF]

open access: yes, 2021
To resolve the signaling mechanisms that mediate the starvation-induced processes of Dictyostelium sporulation and encystation, we performed insertional mutagenesis on cells harboring an mRFP-tagged spore gene.
Schaap, Pauline, Yamada, Yoko
core   +2 more sources

The ribosomal P-stalk couples amino acid starvation to GCN2 activation in mammalian cells

open access: yeseLife, 2019
The eukaryotic translation initiation factor 2α (eIF2α) kinase GCN2 is activated by amino acid starvation to elicit a rectifying physiological program known as the Integrated Stress Response (ISR).
H. Harding   +6 more
semanticscholar   +1 more source

VEGF guides angiogenic sprouting utilizing endothelial tip cell filopodia [PDF]

open access: yes, 2003
Vascular endothelial growth factor (VEGF-A) is a major regulator of blood vessel formation and function. it controls several processes in endothelial cells, such as proliferation, survival, and migration, but it is not known how these are coordinately ...
Abramsson, A   +10 more
core   +2 more sources

Physiological Influence of Stalk Rot on Maize Lodging after Physiological Maturity

open access: yesAgronomy, 2021
The stalk lodging caused by stalk rot after physiological maturity (PM) is a major factor restricting further development of mechanical grain harvesting in China. The physiological mechanism of stalk rot on maize stalk lodging after PM is not clear. This
Jun Xue   +8 more
doaj   +1 more source

Nucleoside-modified mRNA immunization elicits influenza virus hemagglutinin stalk-specific antibodies

open access: yesNature Communications, 2018
Currently available influenza virus vaccines have inadequate effectiveness and are reformulated annually due to viral antigenic drift. Thus, development of a vaccine that confers long-term protective immunity against antigenically distant influenza virus
N. Pardi   +13 more
semanticscholar   +1 more source

Diverse maize hybrids are structurally inefficient at resisting wind induced bending forces that cause stalk lodging

open access: yesPlant Methods, 2020
Background Stalk lodging (breaking of agricultural plant stalks prior to harvest) results in millions of dollars in lost revenue each year. Despite a growing body of literature on the topic of stalk lodging, the structural efficiency of maize stalks has ...
C. Stubbs   +4 more
semanticscholar   +1 more source

Sarcoidosis of the hypothalamus and pituitary stalk [PDF]

open access: yes, 1992
We report a rare case of sarcoidosis of the hypothalamic and suprasellar region, with clinical course and the magnetic resonance imaging follow ...
BE Kendall   +15 more
core   +1 more source

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