Results 51 to 60 of about 4,615,365 (403)

Computer programs for antenna feed system design and analysis [PDF]

, 1967
Fourteen computer programs have been developed for antenna feed system design and analysis. The programs cover a large spectrum of feed design problems, from primary feed pattern synthesis to the farfield pattern of the main reflector, including analyses
Ludwig, A.
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Biological contaminants in insects as food and feed

Journal of Insects as Food and Feed, 2021
During the last decade, edible insects have successfully taken a meaningful position in the feed and food chain. To expand this position, product safety continuously needs to be warranted.
D. Vandeweyer, J. Smet, N. V. Looveren, L. V. Campenhout   +3 more
semanticscholar   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Effects of Dietary Fish Oil Levels on Growth Performance, Lipid Metabolism, Hepatic Health, Nonspecific Immune Response, and Intestinal Microbial Community of Juvenile Amur Grayling (Thymallus grubii)

Aquaculture Nutrition
This trial was conducted to assess the effects of different levels of dietary fish oil on growth performance, hepatic health, nonspecific immune responses, and intestinal microbial community of Amur grayling (Thymallus grubii).
Shaoxia Lu, Chang’an Wang, Yang Liu, Bing Liu, Ying Zhang, Honghe Shi, Gefeng Xu, Shicheng Han, Hongbai Liu   +8 more
doaj   +1 more source

Production of pacific white shrimp in biofloc system with different food management strategies

Boletim do Instituto de Pesca, 2023
In the present work, different models for adjustments in feeding rates to produce Pacific white shrimp (Litopenaeus vannamei) in a biofloc system were analyzed.
Weverson Ailton da Silva, Ana Paula Mariane de Morais, Julianna Paula do Vale Figueiredo, Ramires Eloise Queiroz Rafael, Carlos Yure Barbosa de Oliveira, Felipe do Nascimento Vieira   +5 more
doaj   +1 more source

Saccharomyces cerevisiae as a probiotic feed additive to non and pseudo‐ruminant feeding: a review

Journal of Applied Microbiology, 2020
The production of livestock and poultry faces major challenges to meet the global demand for meat and dairy products and eggs due to a steady increase in the world’s population and the ban of antibiotics in animal production.
M. Elghandour, Z. Tan, S. A. Abu Hafsa, M. Adegbeye, R. Greiner, E. Ugbogu, J. Cedillo Monroy, A. Salem   +7 more
semanticscholar   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Planar microstrip YAGI antenna array [PDF]

, 1993
A directional microstrip antenna includes a driven patch surrounded by an isolated reflector and one or more coplanar directors, all separated from a ground plane on the order of 0.1 wavelength or less to provide end fire beam directivity without ...
Huang, John
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source