Results 61 to 70 of about 7,727,216 (292)

Adaptive value of sex in microbial pathogens

open access: yesInfection, Genetics and Evolution, 2008
Explaining the adaptive value of sex is one of the great outstanding problems in biology. The challenge comes from the difficulty in identifying the benefits provided by sex, which must outweigh the substantial costs of sex. Here, we consider the adaptive value of sex in viruses, bacteria and fungi, and particularly the information available on the ...
Richard E, Michod   +2 more
openaire   +2 more sources

The adaptive value of phenotypic floral integration [PDF]

open access: yesNew Phytologist, 2008
Floral integration has been deemed an adaptation to increase the benefits of animal pollination, yet no attempts have been made to estimate its adaptive value under natural conditions. Here, the variation in the magnitude and pattern of phenotypic floral integration and the variance-covariance structure of floral traits in four species of Rosaceae were
Mariano, Ordano   +3 more
openaire   +2 more sources

Bone and Soft Tissue Neoplasms in Infants Versus Older Children: A Report From the Cancer in Young People in Canada Program

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Infant bone and soft tissue neoplasms present distinct clinical challenges and lack large‐scale data to inform treatment decisions. This study aims to characterize bone and soft tissue neoplasms in infants in Canada and to compare their outcomes with those of older pediatric patients.
Samuel Sassine   +21 more
wiley   +1 more source

Towards New Metrics for the Characterisation of the Dynamic Performance of Adaptive Façade Systems

open access: yesJournal of Facade Design and Engineering, 2018
Traditional façade characterisation metrics such as U-value and g-value are of limited value in the design process of buildings with adaptive façades.
Lorenza Bianco   +9 more
doaj   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

Robust Adaptive Control for Stochastic Discrete-Time Nonlinear Systems and Application to Gas Engine as an Electric Vehicle Extender

open access: yesIEEE Access, 2020
In this paper, the problem of adaptive control with disturbance attenuation is investigated for stochastic discrete-time nonlinear systems with Markovian jumping parameters and unknown system parameters.
Jun Yang   +3 more
doaj   +1 more source

Effect of DFPP on Ferroptosis in Peripheral Blood CD14+ Monocytes of Hyperlipidemic Patients Involving the ACSL4/LPCAT3/ALOX5 Pathway

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng   +3 more
wiley   +1 more source

Attitude control of UAV bicopter using adaptive LQG

open access: yesResults in Control and Optimization
This paper aims to design a controller that is able to maintain the stability of the unmanned aerial vehicle (UAV) bicopter attitude when carrying a payload.
Fahmizal   +3 more
doaj   +1 more source

A testing device for intrinsically safe multi-circuit protection power supply

open access: yesGong-kuang zidonghua, 2018
In order to solve problems of inconvenient operation, complicated process and low accuracy of existing test methods of intrinsically safe power supply, a testing device for intrinsically safe multi- circuit protection power supply was designed.
REN Gaojian   +3 more
doaj   +1 more source

Adaptive memory: The mnemonic value of contamination

open access: yesEvolution and Human Behavior, 2017
Abstract Humans likely evolved an adaptive disease avoidance system, the Behavioral Immune System, to mitigate the fitness costs posed by pathogens. This system is specially attuned to cues connoting infection risk: When perceived, these cues drive affective, cognitive, and behavioral responses, which work in an articulated way to enhance the ...
Fernandes, Natália L.   +3 more
openaire   +3 more sources

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