Results 41 to 50 of about 489,146 (255)

Timing molecular motion and production with a synthetic transcriptional clock [PDF]

open access: yes, 2011
The realization of artificial biochemical reaction networks with unique functionality is one of the main challenges for the development of synthetic biology. Due to the reduced number of components, biochemical circuits constructed in vitro promise to be
Atkinson   +34 more
core   +3 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

Simulation and Analysis of Opening and Closing Dynamic Process of Spring Safety Valve

open access: yesJournal of Harbin University of Science and Technology
To study the opening and closing performance of safety valve,this paper uses mathematical modeling method to simulate and analyze its performance. First,according to the working principle of safety valve,the main moving parts inside the
YAN Xu   +4 more
doaj   +1 more source

A Hybrid Open/Closed-Loop μ Control Method for Achieving Consistent Transient Performance in Turbofan Engines

open access: yesActuators
The inconsistency in acceleration and deceleration performance between high and low altitudes is a significant challenge in aircraft engine control today. In the past, neither open-loop fuel–air ratio control nor closed-loop N-dot control could resolve this issue perfectly; the difference in acceleration and deceleration performance between high and ...
Yifu Long, Xi Wang, Jiashuai Liu
openaire   +2 more sources

Hollywood in Homes: Crowdsourcing Data Collection for Activity Understanding [PDF]

open access: yes, 2016
Computer vision has a great potential to help our daily lives by searching for lost keys, watering flowers or reminding us to take a pill. To succeed with such tasks, computer vision methods need to be trained from real and diverse examples of our daily ...
Farhadi, Ali   +5 more
core   +5 more sources

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

Performance Analysis of Open–Closed Circuit Integrated Pump-Valve Collaborative Drive Multi-Actuator System

open access: yesChinese Journal of Mechanical Engineering
Abstract Load-sensing systems use a centralized power source for energy supply and multiway valves for flow distribution and suffer from excessive throttling losses and low energy efficiency. Pump-controlled systems adopt volumetric control methods to eliminate throttling losses.
Tao Liang   +3 more
openaire   +1 more source

Hand to mouth: automatic imitation across effector systems [PDF]

open access: yes, 2007
The effector-specificity of automatic imitation was investigated using a stimulus-response compatibility (SRC) procedure in which participants were required to make an open or a close response with either their hand or their mouth.
Heyes, C., Leighton, J.
core  

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Ambidextrous leadership and innovation: a process perspective and an experimental approach

open access: yesHumanities & Social Sciences Communications
Ambidextrous leadership is a context-based combination of opening and closing leadership behaviors, and is thought to enhance both leader and employee behaviors in complex innovation processes.
Yiheng Xi, Li Zhou, Haiyan Wang
doaj   +1 more source

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