Results 131 to 140 of about 817,553 (265)

Thermal Phase‐Modulation of Thickness‐Dependent CVD‐Grown 2D In2Se3

open access: yesAdvanced Functional Materials, EarlyView.
A comprehensive study of CVD‐grown 2D In2Se3 reveals a distinct thickness‐dependent phase landscape and a reversible, thermally driven transformation between β″ and β* variants. In situ TEM electron diffraction and Raman spectroscopy reveal structural dynamics, while the structural invariance of the α‐phase in ultrathin regimes highlights its stability—
Dasun P. W. Guruge   +6 more
wiley   +1 more source

Effectiveness of eliminating vertical transmission of HIV in a health center in Mozambique

open access: yesRevista de Ciencias Médicas de Pinar del Río, 2017
Introduction: acquired immunodeficiency syndrome is a serious health problem, especially for developing countries. Objective:  to verify if the strategy of elimination of the vertical transmission  diminished the risk of vertical transmission of AIDS ...
Ihosvani Baños Hernández   +1 more
doaj  

PRICE TRANSMISSION, MARKET POWER AND RETURNS TO SCALE: A NOTE [PDF]

open access: yes
In this paper, we aim to model the vertical relation between retailers and suppliers in the food industry whereby retailers exercise seller power in their relation with consumers and buyer power in their relation with producers.
Habtu Tadesse, Tony Rayner, Xiuqing Wang
core  

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To   +5 more
wiley   +1 more source

Ice Lithography: Recent Progress Opens a New Frontier of Opportunities

open access: yesAdvanced Functional Materials, EarlyView.
This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang   +9 more
wiley   +1 more source

Hidden HIV Infections in Breastfed Children: Diagnosed Only After Maternal Positive Rapid Test at the Birth of Their Younger Siblings

open access: yesDST
Introduction: Breastfeeding provides numerous benefits to mothers, infants, and society. However, in the context of maternal HIV infection, it is contraindicated due to the risk of transmission.
Isabela Bernardes Moreira   +2 more
doaj  

Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation

open access: yesAdvanced Functional Materials, EarlyView.
Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna   +10 more
wiley   +1 more source

The Realization of Multidirectional, Free‐Standing 3D Plasmonic Nanostructures via 3D Nanoprinting: A Case Study of Fractal Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Free‐standing plasmonic gold‐based fractal antennas are fabricated by 3D nanoprinting, employing focused electron beam induced deposition and an optimized purification method to remove carbon while conserving structural fidelity. Simulation and experiment show broadband plasmonic activity, including customizable polarizability, thereby paving the way ...
Verena Reisecker   +6 more
wiley   +1 more source

Vertical transmission of group B Streptococcus and associated factors among pregnant women: a cross-sectional study, Eastern Ethiopia

open access: yesInfection and Drug Resistance, 2018
Tesfaye Assebe Yadeta,1 Alemayehu Worku,2 Gudina Egata,3 Berhanu Seyoum,4 Dadi Marami,4 Yemane Berhane5 1School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia; 2Department of Epidemiology and ...
Yadeta TA   +5 more
doaj  

Price Transmission Asymmetries in the Spanish Lamb Sector [PDF]

open access: yes
The analysis of asymmetries in the price transmission mechanism at different levels of the marketing chain provides some interesting information about the degree of competition in vertical related markets.
Ben Kaabia, Monia   +2 more
core   +1 more source

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