Results 71 to 80 of about 29,980 (263)

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

open access: yesGeological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos   +6 more
wiley   +1 more source

CRISPR knockouts reveal an endogenous role for ancient neuropeptides in regulating developmental timing in a sea anemone

open access: yeseLife, 2018
Neuropeptides are evolutionarily ancient peptide hormones of the nervous and neuroendocrine systems, and are thought to have regulated metamorphosis in early animal ancestors.
Nagayasu Nakanishi, Mark Q Martindale
doaj   +1 more source

The effect of awns on seed yield and germination characteristics in Elymus nutans Griseb.

open access: yesGrassland Research, EarlyView.
The effect of awns on seed yield. Three‐year field trials demonstrated that awns significantly regulate seed yield components and germination characteristics of Elymus nutans Griseb, laying a theoretical foundation for the breeding of high‐yielding forage varieties and seed production.
Yongsen Qiu   +5 more
wiley   +1 more source

Metamorphosis in Teleosts [PDF]

open access: yes, 2013
Teleosts are the largest and most diverse group of vertebrates, and many species undergo morphological, physiological, and behavioral transitions, "metamorphoses," as they progress between morphologically divergent life stages. The larval metamorphosis that generally occurs as teleosts mature from larva to juvenile involves the loss of embryo-specific ...
Sarah K, McMenamin, David M, Parichy
openaire   +2 more sources

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Emerging Issues for Counselors Applying Neuroscience With Black Clients: Avoiding Scientific Racism

open access: yesJournal of Multicultural Counseling and Development, EarlyView.
ABSTRACT Neuroscience‐infused methods are heavily impacting the manner in which counselors, educators, and researchers approach working with clients and conducting research. While some scholars perceive neuroscience as scientifically objective and culturally neutral, that is not entirely true.
Isaac Burt
wiley   +1 more source

A Study on the Distribution Characteristics of Salinity and Nutrients and the Migration Mechanism of Soil Salt in the Delingha Saline‐Alkali Soil Profile of the Qaidam Basin

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Soil salinization negatively impacts the economic development and ecological environment, particularly in the arid and semiarid regions of China. The Qaidam Basin constitutes a major distribution area of saline‐alkali land in the country. However, the distribution patterns of salinity and nutrients within soil profiles and the underlying salt ...
Hongpan Xue   +8 more
wiley   +1 more source

What the largest tadpole feeds on? A detailed analysis of the diet composition of Pseudis minuta tadpoles (Hylidae, Dendropsophini)

open access: yesAnais da Academia Brasileira de Ciências, 2016
We analyzed the diet of 25 individuals of Pseudis minuta tadpoles which consisted in debris with more than 30%, follow by diatoms, euglenids, green algae, and desmids. With regard to the feeding strategy, P. minuta tadpoles are generalist consumer.
SÔNIA HUCKEMBECK   +3 more
doaj   +1 more source

Ranavirus risk depends on host community characteristics more than the presence of Batrachochytrium dendrobatidis

open access: yesOikos, EarlyView.
Novel parasite introductions are threatening wildlife communities globally. The degree of threat depends on the ecological context, namely host community characteristics and the presence of other parasites. How these two factors interact to shape the outcomes of parasite introductions is not known. We experimentally investigated how infection following
David R. Daversa   +5 more
wiley   +1 more source

RESCUING THE OTHER. LITERARY APPROACHES TOWARDS ANIMAL’S STUDIES

open access: yesAnthropological Researches and Studies, 2017
Objectives. This paper explores the anthropological difference through the analysis of bringing rescue. To bring rescue to the other should be founded on the recognition of his suffering.
Urszula Idziak-Smoczynska
doaj   +1 more source

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