Results 31 to 40 of about 160,674 (203)

A Rapid T1‐Independent Sequence for Cerebrospinal Fluid Water Standard Correction: Application to Improved Proton Density Mapping in Brain

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To improve brain water content measures relative to cerebrospinal fluid (CSF) by including a rapid T1‐independent sequence to correct for CSF T1 errors. Methods Proton density (PD) was estimated from a 3D multiple echo gradient echo sequence by extrapolating to TE = 0 and then correcting for T1 losses using a T1 map from 3D MP2RAGE. To
Kiarash Jalali, Nashwan Naji, Peter Seres, Alan H. Wilman   +3 more
wiley   +1 more source

A Social and Solidarity Economy Network's Evolution on Sustainability Discourses: Weak Versus Strong Sustainability

Sustainable Development, EarlyView.
ABSTRACT This study explores innovations concerning sustainability discourses in the case of a Social and Solidarity Economy (SSE) network. We analyse the incorporation of discursive elements characteristic of strong sustainability versus weak sustainability approaches in the different Solidarity Economy Principles Charters over time (2000, 2011, 2022),
Jon Ruiz‐de‐Galarreta, Unai Villalba‐Eguiluz, Pablo Arrillaga   +2 more
wiley   +1 more source

Dawkins, Dennett e as tentativas de universalização do darwinismo

Revista Brasileira de História da Ciência, 2009
Embora a seleção natural darwiniana diga respeito aos seres vivos, existem alguns biólogos e filósofos que defendem que não há nada nesse processo que o restrinja a tais seres. Para eles, qualquer coisa que se reproduza utilizando partes de seu ambiente
Gustavo Leal Toledo
doaj   +1 more source

Selective excitatory effects of γ‐glutamyl‐glycine, a glutathione metabolite, on GluN1 NMDA and mGlu5 receptors impacting synaptic plasticity

British Journal of Pharmacology, EarlyView.
Background and Purpose Gamma‐glutamyl dipeptides are essentially produced after glutathione (GSH) degradation. While several γ‐glutamyl dipeptides have been detected in different organs and body fluids, their biological activity remains elusive. This is the case for γ‐Glutamyl‐Glycine (γ‐Glu‐Gly) which has been found in different brain areas.
Sandro Andreu, Victoria Gizzi, Ugo Pasco, Fatiha Sebih, Yattou Zitouni, Pablo Jimenez, Valérie Rolland, Alain Chavanieu, Sébastien Estaran, Matthieu Rousset, Thierry Cens, Guillaume Cazals, Pierre Charnet, Janique Guiramand, Catherine Cohen‐Solal, Claudine Ménard, Marie‐Céleste de Jésus Ferreira, Nathalie Chevallier, Sonia Cantel, Michel Vignes, Julien Roussel   +20 more
wiley   +1 more source

TRPM3 regulates fear memory encoding and seizure susceptibility in the lateral amygdala

British Journal of Pharmacology, EarlyView.
Abstract Background and purpose TRPM3 is best known for its role as a peripheral sensor of pain and heat. Recent studies reporting gain‐of‐function TRPM3 mutations in patients with neurodevelopmental and epilepsy‐associated disorders suggest a previously unrecognized role of this channel in the brain.
Attila Gyéresi, Laura Mundrucz, Máté Deák, Angéla Kecskés, Éva Borbély, Viktória Kormos, Balázs Gaszner, Orsolya Mihály, Balázs István Tóth, Joris Vriens, Thomas Voets, Erzsébet Kövesdi, Miklós Kecskés   +12 more
wiley   +1 more source

Outcome of Calcium Silicate Sealer‐Based Obturation in Root Canal Retreatment: A CBCT‐Based Prospective Cohort Study

International Endodontic Journal, EarlyView.
ABSTRACT Background Calcium silicate sealers (CSS) have become the dominant approach to root canal obturation in many specialist practices, yet evidence on their performance in nonsurgical retreatment is sparse and CBCT‐based assessment remains uncommon.
Ahmad Aldowaisan, Fahad Alzoubi, Mona Alenezi, Saad Alqahtani, Samhan Alajmi, Faisal Amir, Francesco Mannocci   +6 more
wiley   +1 more source

El ácido siálico, coraza de los seres vivos

Revista Ciencia UANL, 2023
Recientemente realicé una pregunta a algunos conocidos: “¿Qué es lo primero que piensas cuando escuchas la palabra ‘carbohidrato’?”. La mayoría respondió que pensaba en alimentos, en calorías y en cuestiones nutricionales. Personalmente, hace un par de años hubiese pensado lo mismo, pero la perspectiva ha cambiado gracias a los conocimientos ...
Claudia Aguirre-Zapata, Yobana Pérez-Cervera, Roberta Salinas-Marín   +2 more
openaire   +1 more source

A natureza da classificação dos seres vivos na Grécia antiga

Diálogos, 2018
Na História da Biologia, as classificações efetuadas por Platão e Aristóteles aos seres vivos são consideradas marcos metodológicos. Objetivando compreender em que medida essas classificações poderiam ser consideradas métodos construídos pelos filósofos ...
Verônica Klepka, Maria Julia Corazza
doaj  

A vida em processo: explorando a dualidade entre vida e morte nas reflexões de Paul Tillich

Griot
Este artigo busca, através das reflexões de Paul Tillich, explorar os conceitos de "processo" e "vida". Tanto os seres vivos quanto os seres inanimados estão igualmente sujeitos a "processos", mas, no contexto da morte, a "vida" carrega consigo sua ...
André Magalhães Coelho
doaj   +1 more source

The OsWRKY15‐OsSUT3 Regulatory Module Enhances Rice Pollen Fertility by Mediating Sucrose Allocation to Anthers

Plant Biotechnology Journal, EarlyView.
ABSTRACT Sucrose transport and starch accumulation are crucial carbohydrate metabolic processes in rice, playing essential roles during late pollen development to ensure pollen maturation, fertility and high grain production. However, the molecular mechanisms regulating sucrose transport and starch accumulation during rice pollen development remain ...
Qiuping Li, Chunlong Zhang, Shuaibing Wang, Jin Chen, Yandong Sun, Wenqing Ma, Yu Yong, Qinghui Yang, Lijuan Chen, Jiancheng Wen, Dandan Li   +10 more
wiley   +1 more source