Results 11 to 20 of about 29,785 (246)

BBD Driven Fabrication of Hydroxyapatite Engineered Risedronate Loaded Thiolated Chitosan Nanoparticles and Their In Silico, In Vitro, and Ex Vivo Studies

open access: yesMicromachines, 2023
Risedronate sodium (RIS) exhibits limited bioavailability and undesirable gastrointestinal effects when administered orally, necessitating the development of an alternative formulation. In this study, mPEG-coated nanoparticles loaded with RIS-HA-TCS were
Zoya Saifi   +7 more
doaj   +1 more source

STAR-RIS-UAV-Aided Coordinated Multipoint Cellular System for Multi-User Networks

open access: yesDrones, 2023
Different from conventional reconfigurable intelligent surfaces (RIS), simultaneous transmitting and reflecting RIS (STAR-RIS) can reflect and transmit signals to the receiver. In this paper, to serve more ground users and increase deployment flexibility,
Baihua Shi   +8 more
doaj   +1 more source

Enhancing Asia’s trade: price and non-price barriers revisited [PDF]

open access: yesJournal of International Logistics and Trade, 2010
In a supply-constrained region like Asia, promoting exports has always been a challenge particularly at a time when Asia’s trade has been severely affected by lack of external demand.
Prabir De
doaj   +1 more source

Energy Efficiency Fairness of Active Reconfigurable Intelligent Surfaces-Aided Cell-Free Network

open access: yesIEEE Access, 2023
Reconfigurable intelligent surface (RIS) has been widely recognized as a promising technique for future wireless communications. Benefiting from its ability to improve channel capacity with low cost and power consumption, the concept of RIS-aided cell ...
Yuhong Wang, Jingyi Peng
doaj   +1 more source

Performance of a Double RIS Communication System Aided by Partially Active Elements

open access: yesSensors, 2023
Reconfigurable intelligent surface (RIS) has emerged as a promising technology to enhance the spectral efficiency of wireless communication systems. However, if there are many obstacles between the RIS and users, a single RIS may not provide sufficient ...
Seung-Geun Yoo   +5 more
doaj   +1 more source

A sleep-active neuron can promote survival while sleep behavior is disturbed.

open access: yesPLoS Genetics, 2023
Sleep is controlled by neurons that induce behavioral quiescence and physiological restoration. It is not known, however, how sleep neurons link sleep behavior and survival.
Inka Busack, Henrik Bringmann
doaj   +1 more source

Inhibition of growth and urease activity of Helicobacter pylori by Korean edible seaweed extracts

open access: yesBotan‪ical Sciences, 2013
Of 27 Korean seaweed species screened for potential anti- H. pylori activity, seven (25.9%) showed strong inhibitory activity based on the agar diffusion method. The strongest activity was observed for ethanol extracts from Ishige okamurae. At 1 mg/disk,
Bo-Bae Lee   +6 more
doaj   +1 more source

Enabling User Grouping and Fixed Power Allocation Scheme for Reconfigurable Intelligent Surfaces-Aided Wireless Systems

open access: yesIEEE Access, 2021
This paper considers a two-user downlink transmission in reconfigurable intelligent surface (RIS)-aided network over fading channels. Particularly, by employing user grouping and fixed power allocation scheme to enable non-orthogonal multiple access ...
Anh-Tu Le   +4 more
doaj   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

open access: yesFEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada   +5 more
wiley   +1 more source

Securing NextG networks with physical-layer key generation: A survey

open access: yesSecurity and Safety
As the development of next-generation (NextG) communication networks continues, tremendous devices are accessing the network and the amount of information is exploding.
Xiao Qingjiang   +4 more
doaj   +1 more source

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