Results 91 to 100 of about 31,068 (231)
Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes
FEBS Letters, EarlyView.Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez +2 more
wiley +1 more source
Medium Access Control Protocols for Cognitive Radio Ad Hoc Networks: A Survey
Sensors, 2017 New wireless network paradigms will demand higher spectrum use and availability to cope with emerging data-hungry devices. Traditional static spectrum allocation policies cause spectrum scarcity, and new paradigms such as Cognitive Radio (CR) and new ...
Mahdi Zareei +5 more
doaj +1 more source
Medium Access Control Game with An Enhanced [PDF]
, 2014 -We consider distributed medium access control in a wireless network where each link layer user (transmitter) is equipped with multiple transmission options as opposed to the classical binary options of transmitting/idling.
Tiegang Zhao, Yanru Tang, Jie Luo
core
WCDMA RACH channel medium access control performance [PDF]
, 2003 The variety of traffic types in 3G packet based wireless networks have different needs in terms of transport channel access and resource allocation. In practice, the performance of the traffic transport is largely defined by medium access control (MAC ...
Jurvansuu, Marko; id_orcid +3 more
core +1 more source
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
GWMAC- A TDMA Based MAC Protocol for a Glacial Sensor Network [PDF]
, 2007 Wireless sensor networks demand the need to design practical and robust communication protocols to meet the application specifications. Our research focuses on designing and implementing an environmental sensor network to be used for sub-glacial study ...
Martinez, Kirk +7 more
core
Capacity analysis of reservation-based random access for broadband wireless access networks [PDF]
, 2009 —In this paper we propose a novel model for the capacity analysis on the reservation-based random multiple access system, which can be applied to the medium access control protocol of the emerging WiMAX technology.
Vinel, A +11 more
core +1 more source
FEBS Letters, EarlyView.Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Dynamical Spectrum Sharing and Medium Access Control for Heterogeneous Cognitive Radio Networks
International Journal of Distributed Sensor Networks, 2016 This paper tackles the issue of spectrum sharing and medium access control among heterogeneous secondary users. Two solutions are proposed in this paper.
Ahmed Mohamedou +3 more
doaj +1 more source