Results 31 to 40 of about 148,872 (273)

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

An analytical model of contention in wireless sensor networks using tree routing

open access: yesTạp chí Khoa học và Công nghệ
Presently, the focus of current research on Wireless Sensor Networks (WSNs) is predominantly on contention at the MAC layer, overlooking the traffic characteristics of upper-layer traffic, especially the interaction with the routing traffic.
Vo Que Son
doaj   +1 more source

A Q-Learning-Based Adaptive MAC Protocol for Internet of Things Networks

open access: yesIEEE Access, 2021
In Internet of Things (IoT) applications, sometimes the quality of service (QoS) of throughput for transmitting video or the QoS of bounded delay for control of a sensor node is required.
Chien-Min Wu   +4 more
doaj   +1 more source

Enhanced Contention Resolution Aloha - ECRA [PDF]

open access: yes, 2013
Random Access (RA) Medium Access (MAC) protocols are simple and effective when the nature of the traffic is unpredictable and random. In the following paper, a novel RA protocol called Enhanced Contention Resolution ALOHA (ECRA) is presented.
Kissling, Christian, Clazzer, Federico
core  

Modeling Progressive Brain Volume Losses in Chronic Moderate Severe Traumatic Brain Injury: Extensive, but Attenuating

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Progressive brain atrophy has now been widely observed in the chronic stages of moderate–severe traumatic brain injury (msTBI), but there is only coarse information regarding its prevalence and magnitude, and whether rate of atrophy accelerates or attenuates across time. We examined these questions in a Canadian inception cohort from
Robin E. A. Green   +6 more
wiley   +1 more source

Performance Enhancements for Asynchronous Random Access Protocols over Satellite [PDF]

open access: yes, 2011
In this paper, a novel enhancement of the well known ALOHA random access mechanism is presented which largely extends the achievable throughput compared to traditional ALOHA and provides significantly lower packet loss rates. The novel mechanism, called
Kissling, Christian, Christian Kissling
core   +1 more source

The Content and Reporting Completeness of Physical Therapist–Led Interventions for Glenohumeral Osteoarthritis: A Systematic Review

open access: yesArthritis Care &Research, EarlyView.
Objective This study synthesized the content and reporting completeness of published physical therapist–led interventions for glenohumeral osteoarthritis (GHOA). Methods This systematic review undertook electronic database searches in PubMed, EMBASE, Cochrane, CINAHL, and PEDro (until June 2025) for any peer‐reviewed articles or studies describing ...
Daha G. Muhammad   +5 more
wiley   +1 more source

Channel Contention Delay Optimization Mechanism for 802.15.4 Network MAC Layer with Unsaturated Load [PDF]

open access: yesJisuanji gongcheng, 2016
To reduce the delay of channel contention at the Medium Access Control(MAC) layer for IEEE 802.15.4 networks,a channel contention mechanism for nodes,with unsaturated load is designed.A mathematical model is built and a derivation is carried on to obtain
CHENG Hongbin,WANG Xiaonan,SUN Xia,LE Deguang
doaj   +1 more source

Contention of Meaning in WhatsApp Cultural Group A Semantic Cognitive Analysis

open access: yesEthical Lingua: Journal of Language Teaching and Literature, 2021
The discourse of interpersonal communication in social media group contains of turn adjacency and simultaneous feedback of communication. Especially in WhatsApp group, the model of communication constructs a discourse by using a certain ideological mode ...
Afdhal Kusumanegara   +3 more
doaj   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

open access: yesAdvanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti   +4 more
wiley   +1 more source

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