Results 51 to 60 of about 11,414 (205)

Geometric Phase Metasurface for Lens Antenna System With High Polarisation Purity and Efficiency

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
This work presents a millimetre‐wave antenna–metalens system based on the Pancharatnam–Berry phase principle, operating efficiently from 82 to 95 GHz. The system achieves high directivity (up to 34.7 dB), excellent polarisation purity (AR < 2 dB) and aperture efficiency exceeding 30%. The same metalens is also characterised at 75 and 105 GHz, where the
Alexia Moreno‐Peñarrubia, Sheyly Ortiz‐Reyes, Jorge Teniente, Sergei Kuznetsov, Bakhtiyar Orazbayev, Miguel Beruete   +5 more
wiley   +1 more source

Decrease in Effective Population Size After the Immigration of Asian Black Bears to Japan

Ecological Research, Volume 41, Issue 1, January 2026.
The Asian black bear populations in Japan experienced three distinct periods of population decline in the past. The first decline began approximately between 800,000 and 300,000 years ago, the second occurred around 150,000 to 70,000 years ago, and the third took place roughly from 50,000 to 18,000 years ago.
Naoki Ohnishi, Valentin Guskov, Shuri Kato, Ririko Koido, Kentaro Uchiyama, Yoshiaki Tsuda   +5 more
wiley   +1 more source

ТЕХНОЛОГИЯ МАТРИЧНОГО ПОСТРОЕНИЯ МОДЕРНИЗИРОВАННОГО УЧЕБНОГО КУРСА «ДЕТСКАЯ ЛЕГКАЯ АТЛЕТИКА ИААФ» ПРИ ПОДГОТОВКЕ ШКОЛЬНЫХ КЛАСС-КОМАНД К ЛЕГКОАТЛЕТИЧЕСКИМ СОРЕВНОВАНИЯМ

Физическая культура. Спорт. Туризм. Двигательная рекреация, 2020
Программа «ATHLETICS IAAF KIDS» – «Детская легкая атлетика ИААФ» – доступная, привлекательная, поучительная и командная соревновательная легкоатлетическая программа, предназначенная специально для детей, школьников-спортсменов, подростков, включенных в ...
Геннадий Николаевич Германов, Эльмира Фаритовна Сабирова, Екатерина Геннадьевна Цуканова   +2 more
doaj  

The current state of art in program obfuscations:definitions of obfuscation security

Труды Института системного программирования РАН, 2018
Program obfuscation is a semantic-preserving transformation aimed at bringing a program into such a form, which impedes the understanding of its algorithm and data structures or prevents extracting of some valuable information from the text of a program.
N. P. Varnovsky, V. A. Zakharov, N. N. Kuzurin, V. A. Shokurov   +3 more
doaj   +1 more source

The Effect of Sensor Response Measurement Techniques on the Sensitivity of Organic Field‐Effect Transistors to NO2

Advanced Electronic Materials, Volume 11, Issue 20, December 3, 2025.
Organic field‐effect transistor gas sensors were investigated using periodic transfer curves and transient current measurements with pulsed voltages. Their sensitivity was found to depend on the measurement routine, allowing us to propose a detection mechanism.
Daniil S. Anisimov, Askold A. Trul, Oleg V. Borshchev, Anton A. Abramov, Andrey Yu. Sosorev, Nikita O. Dubinets, Elena V. Agina, Sergey A. Ponomarenko   +7 more
wiley   +1 more source

Gels for CO2 geo‐storage and conformance control: A systemic review of behavior and performance

Deep Underground Science and Engineering, Volume 4, Issue 4, Page 612-637, December 2025.
This review provides a systemic evaluation of potential sealants used in CO2 subsurface storage practices. Critical analyses of how external factors like CO2, pH, brine salinity and hardness, rock mineralogy, pressure, temperature, and injectivity could affect the performance of different sealants are provided. Abstract Carbon capture and storage (CCS)
Funsho Afolabi, Iskandar Dzulkarnain, Sunil Kwon, Dmitriy A. Martyushev, Jang H. Lee, Shiferaw R. Jufar, Fahd Al‐Akbari   +6 more
wiley   +1 more source

HIV incidence and prevalence among adults in Mozambique: estimates from the Population‐based HIV Impact Assessment Survey (INSIDA 2021) and district‐level modelling

Journal of the International AIDS Society, Volume 28, Issue 11, November 2025.
Abstract Introduction Accurate information is needed to prioritize programmes and resources that address gaps in the HIV response. We examined findings from the 2021 Mozambique Population‐based HIV Impact Assessment (INSIDA) survey, complemented with subnational model‐based estimates of the number of new infections and district‐level incidence to gauge
Eduardo Samo Gudo, K. Carter McCabe, Erika Fazito, Daniel Catano, Orrin Tiberi, Makini Boothe, Jordan McOwen, Jeffrey W. Imai‐Eaton, Oliver Stevens, Lourena Manembe, Wafaa M. El‐Sadr   +10 more
wiley   +1 more source

Exploring the influence of age, gender, stigma, and years living with HIV on mental health outcomes

HIV Medicine, Volume 26, Issue 11, Page 1684-1693, November 2025.
Abstract Background People living with HIV/AIDS face a myriad of discrimination and social stigma experiences. As a result of progress observed throughout the HIV epidemic, an ageing population of people living with HIV/AIDS exists, potentially facing greater mental health challenges from combined chronic conditions and stigma.
Guilherme Welter Wendt, Lara Wiehe Chaves, Angelo Brandelli Costa   +2 more
wiley   +1 more source

Развитие программ игр олимпиад и зимних Олимпийских игр при различных президентах МОК

Фізичне виховання, спорт і культура здоров’я у сучасному суспільстві, 2016
В статье освещаются и анализируются основные аспекты формирования программ игр олимпиад и зимних Олимпийских игр, их развитие и наиболее существенные изменения, происходившие в них при различных президентах Международного олимпийского комитета.
Сергій Назарович Бубка
doaj  

Национальная программа по оптимизации обеспеченности витаминами и минеральными веществами детей России. Краткий обзор документа

, 2017
Providing the body with micronutrients — vitamins and minerals — is an indispensable component of human health and is essential in the  early stages of ontogenesis.
Вера Митрофановна Коденцова, Лейла Сеймуровна Намазова-баранова, Светлана Геннадиевна Макарова   +2 more
semanticscholar   +1 more source