Results 41 to 50 of about 539,123 (325)

Building a Bird: Musculoskeletal Modeling and Simulation of Wing-Assisted Incline Running during Avian Ontogeny [PDF]

open access: yes, 2018
Flapping flight is the most power-demanding mode of locomotion, associated with a suite of anatomical specializations in extant adult birds. In contrast, many developing birds use their forelimbs to negotiate environments long before acquiring “flight ...
Ashley M. Heers   +4 more
core   +3 more sources

Study on Improvement of Operation Economy of Civil Aircraft Water and Waste System

open access: yesHangkong gongcheng jinzhan, 2022
Based on the green design concept of environmental protection and the pursuit of economy for civil aircraft,the weight loss is a key consideration factor in aircraft design.How to balance the relationship of water carrying capacity and water supplying ...
ZHANG Xueping
doaj   +1 more source

Studies on Lygus pratensis’ (Hemiptera: Miridae) Flight Ability

open access: yesInsects
Lygus pratensis (Linnaeus) is an important agricultural pest with a strong ability to move and spread between hosts. However, L. pratensis’ flight potential and factors affecting its flight ability are unclear.
Yixiang Zheng   +5 more
doaj   +1 more source

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

open access: yesFEBS 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

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

open access: yesFEBS 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   +2 more
wiley   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

open access: yesFEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman   +2 more
wiley   +1 more source

Energy Reserve Allocation in the Trade-Off between Migration and Reproduction in Fall Armyworm

open access: yesInsects
Striking a trade-off between migration and reproduction becomes imperative during long-range migration to ensure proper energy allocation. However, the mechanisms involved in this trade-off remain poorly understood.
Chuan-Feng Xu   +6 more
doaj   +1 more source

Flight muscle size reductions and functional changes following long‐distance flight under variable humidity conditions in a migratory warbler

open access: yesPhysiological Reports, 2023
Bird flight muscle can lose as much as 20% of its mass during a migratory flight due to protein catabolism, and catabolism can be further exacerbated under dehydrating conditions.
Derrick J. E. Groom   +9 more
doaj   +1 more source

Screening for lung cancer: A systematic review of overdiagnosis and its implications

open access: yesMolecular Oncology, EarlyView.
Low‐dose computed tomography (CT) screening for lung cancer may increase overdiagnosis compared to no screening, though the risk is likely low versus chest X‐ray. Our review of 8 trials (84 660 participants) shows added costs. Further research with strict adherence to modern nodule management strategies may help determine the extent to which ...
Fiorella Karina Fernández‐Sáenz   +12 more
wiley   +1 more source

Falling Victim to Wasps in the Air: A Fate Driven by Prey Flight Morphology? [PDF]

open access: yesPLoS ONE, 2016
In prey-predator systems where the interacting individuals are both fliers, the flight performance of both participants heavily influences the probability of success of the predator (the prey is captured) and of the prey (the predator is avoided).
Yolanda Ballesteros   +4 more
doaj   +1 more source

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