Results 41 to 50 of about 47,693 (267)

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Optimization of Trailing-Edge Unloading for Lambda-Wing UAV Using B-Spline Trailing-Edge Twist Method

Drones
As a commonly used configuration for advanced unmanned aerial vehicles (UAVs), the flying-wing configuration suffers from pitching moment trimming issues due to the lack of horizontal tail.
Chengen Yuan, Dongli Ma, Yuhong Jia, Liang Zhang   +3 more
doaj   +1 more source

Study on a Novel Variable Valve Timing and Lift Mechanism for a Miller Cycle Diesel Engine

Energies, 2022
Thermal efficiency and power density improvement are the main research foci of the literature on diesel engines. The Miller cycle is considered to be one of the most promising methods of diesel engine operation.
Fanshuo Liu, Bolan Liu, Junwei Zhang, Peng Wan, Ben Li   +4 more
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Numerical Investigation of Lift Force Increase in a Hovercraft by Changing the Geometrical Parameters of Flow Transfer Part and Air Channel

نشریه مهندسی دریا, 2020
Hovercraft is a modern air-cushion vehicle (ACV) that has the ability to move on a variety of surfaces, such as water and land. The distinguishing feature of the hovercraft and other vessels is that the hovercrafts are deployed on a layer of air and then
Hossein Sadeghi, Mehrshad Yassari, Mohsen Pourfallah, Mohammad Molla Alipour, Ahmad Ali Rabienataj Darzi   +4 more
doaj  

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Lateral-Directional Aerodynamic Optimization of a Tandem Wing UAV Using CFD Analyses

Aerospace
This paper presents the second stage of a tandem fixed-wing unmanned aerial vehicle (UAV) aerodynamic development. In the initial stage, the UAV was optimized by analyzing its characteristics only in symmetrical flight conditions.
Ivan Kostić, Aleksandar Simonović, Olivera Kostić, Dušan Ivković, Dragoljub Tanović   +4 more
doaj   +1 more source

Rolling the dice in a game of trust: Organizational effects on trust, efficacy and motivation when using economic incentives as a driving force for development in Swedish schools

Nordic Journal of Studies in Educational Policy, 2019
For a long time, the Swedish government has tried different reforms to counteract declining student results. One action was to implement a salary-lift for teachers perceived as especially skilled.
Björn Ahlström, Mats Danell
doaj   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Evolutionary generative design of supercritical airfoils: an automated approach driven by small data

Complex & Intelligent Systems, 2023
Supercritical airfoils are critical components in the design of commercial wide-body aircraft wings due to their ability to enhance aerodynamic performance in transonic flow regimes.
Kebin Sun, Weituo Wang, Ran Cheng, Yu Liang, Hairun Xie, Jing Wang, Miao Zhang   +6 more
doaj   +1 more source