Results 171 to 180 of about 401,757 (275)

Nicotinamide Riboside Supplementation Alleviates Testicular Aging Induced by Disruption of Qprt‐Dependent NAD+ De Novo Synthesis in Mice

open access: yesAging Cell, EarlyView.
In Qprt‐deficient mice, testicular NAD+ levels decline accelerated with age, leading to mitochondrial dysfunction, disrupted DSB repair, impaired meiotic sex chromosome inactivation, and germ cell loss. Nicotinamide riboside (NR) supplementation restores NAD+ levels and alleviates these defects, highlighting the importance of NAD+ de novo synthesis in ...
Yining Xu   +9 more
wiley   +1 more source

Next Generation New Radio Small Cell Enhancement: Architectural Options, Functionality and Performance Aspects [PDF]

open access: yesarXiv, 2018
The 3rd generation partnership project (3GPP) has been engaged in further advancing the evolved universal mobile telecommunications system (UMTS) terrestrial radio access network (E-UTRAN) and UTRAN based radio access network technologies. New radio (NR) is the 3rd generation partnership project (3GPP) endeavor for outlining and standardization of the ...
arxiv  

Microbial Loads in Traumatized Immature Teeth and Their Impact on the Treatment Outcomes of Regenerative Endodontic Treatment: A Randomized Clinical Trial Comparing Chlorhexidine and Calcium Hydroxide

open access: yesDental Traumatology, EarlyView.
ABSTRACT Introduction Regenerative endodontic treatment (RET) aims to promote root maturation in necrotic immature teeth, where effective microbial disinfection is crucial for treatment success. This study evaluated the effect of calcium hydroxide (CH) and 2% chlorhexidine gluconate (CHD) as intracanal medicaments and their impact on bacterial loads ...
Alina Wikström   +5 more
wiley   +1 more source

5G NR Positioning with OpenAirInterface: Tools and Methodologies

open access: yes
The fifth-generation new radio (5G NR) technology is expected to provide precise and reliable positioning capabilities along with high data rates. The Third Generation Partnership Project (3GPP) has started introducing positioning techniques from Release-16 based on time, angle, and signal strength using reference signals.
Mundlamuri, Rakesh   +3 more
openaire   +2 more sources

Derivatives of MOPS: promising scaffolds for SARS coronaviruses Macro domain‐targeted inhibition

open access: yesThe FEBS Journal, EarlyView.
The SARS‐CoV/CoV‐2 genome encodes non‐structural protein 3, which contains a ‘Macro domain’. This protein domain exhibits antagonistic activity against interferon signaling, which disrupts the host innate immune response and can thus mediate viral escape, highlighting its therapeutic potential.
Oney Ortega Granda   +5 more
wiley   +1 more source

Analysis of 5G NR coverage capability at 2.6 GHz

open access: yesDianxin kexue, 2019
The current research on 5G new air interface is mainly concentrated in the middle and high frequency bands.The low frequency band re-cultivation used by 4G is of great significance for 5G-scale contiguous networking,but there are few studies.On the basis
Xinkai CUI   +3 more
doaj   +2 more sources

Characterization and ex vivo modelling of endodontic infections from the Arabian Gulf region

open access: yesInternational Endodontic Journal, EarlyView.
Abstract Aim The microbiota of endodontic infections in patients from the Arabian Gulf region (AGR) is largely unexplored. While research in different global regions has investigated the microbial composition of such infections, studies using shotgun metagenomic sequencing (SMS) alongside culture‐dependent techniques (CDT) are limited.
Rania Nassar   +4 more
wiley   +1 more source

5G NR small cells deployment using Beamforming

open access: yes, 2022
5G mobile communication systems should bring significant benefits such as lower latency, higher peak and user data rates, connection density and availability. To achieve such benefits beamforming at the base stations and new high frequency bands will be used.
openaire   +1 more source

Galactose‐α‐1,3‐galactose‐presenting bacterial families are associated with resistance to experimental avian malaria infection

open access: yesJournal of Avian Biology, EarlyView.
The gut microbiome can contribute to host health through defense against pathogens. However, links between the host gut microbiome and resistance to infection have been primarily investigated in humans and lab‐bred rodents, so we do not know to what extent this relationship exists in wild animals.
R. K. Noble, T. R. Kelly, C. R. Lattin
wiley   +1 more source

Mathematical Framework for Mixed Reservation- and Priority-Based Traffic Coexistence in 5G NR Systems [PDF]

open access: gold, 2023
Daria Ivanova   +4 more
openalex   +1 more source

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