Results 71 to 80 of about 2,236,160 (324)

Um Rosa cor-de-rosa?

open access: yesMatraga - Revista do Programa de Pós-Graduação em Letras da UERJ, 2020
A partir de coleção de biografemas de Guimarães Rosa – tomado aqui como personagem de seu próprio projeto singularíssimo de cruzamento de vida e obra – o conto “Os chapéus transeuntes” é lido como performance autoficcional; isto é, a escritura dessa estória pode ter servido de gesto de confissão e contrição do próprio Rosa, que assim expiaria seu ...
openaire   +2 more sources

Multifrequency Behaviour of Galactic and Extragalactic Novae [PDF]

open access: yes, 2018
The outbursts of novae are among the strongest explosions in the Universe. The eruptions involve physical processes that span the whole electromagnetic spectrum, demanding multifrequency observations. The photometric and spectroscopic observations in the
Poggiani, Rosa
core   +2 more sources

Proton FLASH Exposure Preserves Gut Commensal Microbiomes and Spares Intestinal Stem Cells

open access: yesAdvanced Science, EarlyView.
This study highlights the role of Proton FLASH abdominal irradiation in sparing of intestinal stem cells and preservation of key gut microbial population resulting minimization of radiation toxicity in intestinal epithelium in mice. Our findings support the potential of Proton FLASH to improve the therapeutic ratio for abdominal radiation exposure ...
Rishi Man Chugh   +11 more
wiley   +1 more source

Beyond Transconductance: Cell‐Polymer Coupling Determines Fidelity in Action Potential Recording via Electrolyte‐Gated Polymer Transistors

open access: yesAdvanced Science, EarlyView.
High electrical performance alone does not guarantee efficient bioelectronic signal transduction. Despite excellent mixed ionic‐electronic conduction, recordings from cardiomyocytes reveal that p(g2T‐TT)‐based OECTs predominantly transduce field potential FP‐like signals due to weak cell‐polymer coupling.
Giulia Zoe Zemignani   +10 more
wiley   +1 more source

Pierceable, Water‐Resistant, and Transparent Nanofilm Electrodes Comprising Carbon Nanotubes for Long‐Term Monitoring of Plant Electrophysiology

open access: yesAdvanced Science, EarlyView.
Ultra‐flexible electrodes composed of single‐walled carbon nanotubes on a polymeric substrate exhibit excellent transparency, water resistance, and conformability to hairy surfaces. These non‐invasive nanofilms are easily pierced by trichomes, overcoming the structural barriers in plant electrophysiology.
Yusuke Hori   +3 more
wiley   +1 more source

Semiconducting Polymer Nanoparticles Enable Light‐Controlled Bidirectional Modulation of Nitric Oxide in Endothelial Cells

open access: yesAdvanced Science, EarlyView.
Bimodal modulation of nitric oxide in endothelial cells is achieved by light‐sensitive polymer nanoparticles. In dark, P3HT/PEDOT:PSS NPs boost intracellular ·NO, upregulate both endothelial and induced nitric oxide synthase, and drive a metabolic shift toward glycolysis.
Camilla Marzuoli   +12 more
wiley   +1 more source

Fabrication of High‐Density Multimodal Neural Probes Based on Heterogeneously Integrated CMOS

open access: yesAdvanced Science, EarlyView.
A chiplet‐based methodology democratizes active neural probe development on standard bulk CMOS services. This yields the first probe combining high‐density electrophysiology (416 electrodes) with calcium imaging (832 photodiodes) and complete on‐chip signal processing across 13 shanks.
Ju Hee Mun   +10 more
wiley   +1 more source

Evaluation of Ergonomic Risk in Para Clinical Sections (Laboratory-Pathology-Radiology and CT scan) by ROSA Method in Treatment Centers (A Case Study of Baqiyatollah Hospital)

open access: yesبهداشت کار و ارتقای سلامت, 2018
Introduction: The harmful ergonomic factors cause work-related musculoskeletal disorders. They annually cause a relatively high percentage of work-related absences, insurance indemnities, physical and mental discomfort, and ultimately workers ...
Mahdi BAHRAMBEIGI   +2 more
doaj  

Staging an Experience of Cultural Heritage Preservation: Consumers' Willingness to Pay for Heirloom Rice in the Philippines

open access: yesAgribusiness, EarlyView.
ABSTRACT The Cordillera Administrative Region in the Philippines is home to terraced rice embedded in centuries of cultural heritage. However, weak market incentives threaten sustained production, jeopardizing indigenous communities' cultural heritage and the in situ biodiversity of rice genetic resources.
Kofi Britwum, Matty Demont
wiley   +1 more source

Cobertura do substrato com filme plástico e o cultivo hidropônico da roseira: produtividade, consumo de água, temperatura e salinização

open access: yesScientia Agricola, 1999
Roseiras das cultivares Anna e Sari foram conduzidas em cultivo hidropônico em bancadas com e sem cobertura do substrato. O material usado para a cobertura foi o polietileno (PEBD) de coloração preta e com espessura de 0,18 mm. Como substrato de cultivo,
Rodrigues Ernesto José Resende   +2 more
doaj  

Home - About - Disclaimer - Privacy