Results 31 to 40 of about 3,043 (76)

Nano-Power OTA-Based Low-Pass Filter for Ultra-Low-Energy Biomedical Signal Processing

Italian National Conference on Sensors
This paper presents a nanowatt-scale operational transconductance amplifier (OTA) and an electronically tunable third-order low-pass filter (LPF) designed for energy-constrained biomedical signal conditioning. The circuits are implemented in a 65 nm CMOS
Tomasz Kulej, M. Kumngern, Fabian Khateb
semanticscholar   +1 more source

Response of Nitrogen Use Efficiency and Nitrogen Metabolism Characteristics to Nitrogen Fertilizer in Different Yield‐Type Rice Varieties

Food and Energy Security
A two‐year field experiment (2022–2023) was conducted in Yangzhou, Jiangsu, China, to quantify the response of two contrasting rice yield types to increasing nitrogen (N) supply.
Yanhong Zhang, Tong Sun, Yan Ru, Tangjun Su, Hongcheng Zhang, Jinyan Zhu, Jinlong Hu, Qiangqiang Xiong, Nianbing Zhou   +8 more
semanticscholar   +1 more source

Perfil fonoaudiológico de pacientes pós-acidente vascular cerebral isquêmico: prevalência de afasia e nível de ingestão oral

Audiology: Communication Research
RESUMO Objetivo Caracterizar o perfil da população de uma Unidade de Acidente Vascular Cerebral quanto à prevalência de afasia e nível de ingestão oral após primeiro acidente vascular cerebral isquêmico.
Ana Letícia Mais, Daiane Bassi, Roxele Ribeiro Lima   +2 more
semanticscholar   +1 more source

A ruptura da dependência de insumos farmacêuticos ativos estrangeiros

UNISANTA law and social science
Contextualização: A dependência crônica do Brasil em relação a Insumos Farmacêuticos Ativos (IFAs) estrangeiros onera o sistema de saúde e gera impactos ambientais significativos devido à logística internacional.
Maximino Pedro Junior, Guilherme Schmidt Hayama, Ricardo Maurício Freire Soares   +2 more
semanticscholar   +1 more source

Biochar Improves Yield by Reducing Saline–Alkaline Stress, Enhancing Filling Rate of Rice in Soda Saline–Alkaline Paddy Fields

Plants
Soda saline–alkaline stress significantly impedes the rice grain filling process and ultimately impacts rice yield. Biochar has been shown to mitigate the negative impacts of saline–alkaline stress on plants. However, the exact mechanism by which biochar
Weikang Che, Xuebin Li, Junlong Piao, Yue Zhang, Shihao Miao, Hongyue Wang, Liming Xie, Feng Jin   +7 more
semanticscholar   +1 more source

Biochar Increases Rice Yield in Soda Saline-Alkali Paddy Fields by Improving Saline-Alkali Stress and Phosphorus Use Efficiency

Agronomy
Soda saline-alkali significantly hinders rice growth, phosphorus utilization efficiency, and yield formation. The application of biochar can alleviate the adverse effects of saline-alkali stress on crops.
Xuebin Li, Weikang Che, Junlong Piao, Yang Song, Xudong Wang, Yue Zhang, Shihao Miao, Hongyue Wang, Liming Xie, Jiayi Sun, Feng Jin   +10 more
semanticscholar   +1 more source

Synthesis and Transformations of Bioactive Scaffolds via Modified Mannich and aza-Friedel-Crafts Reactions. [PDF]

Chem Rec
Hegedűs D, Szemerédi N, Spengler G, Szatmári I.   +3 more
europepmc   +1 more source

Residue 225 determines the Na(+)-induced allosteric regulation of catalytic activity in serine proteases.

Proceedings of the National Academy of Sciences of the United States of America, 1996
Q. D. Dang, E. Cera
semanticscholar   +1 more source

Analytical biotechnology. [PDF]

Curr Opin Biotechnol, 1995
europepmc   +1 more source

Nuclear charge radii from muonic X-ray transitions in F, Na, Al Si, P, S and K, Nucl. Phys. A300 (1978) 225

, 1978
L. Schaller, T. Dubler, K. Kaeser, G. Rinker, B. Robert-Tissot, L. Schellenberg, H. Schneuwly   +6 more
semanticscholar   +1 more source