Results 41 to 50 of about 21,285 (307)

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

India Policy Insights: Estimates of Population Health and Social Determinants Indicators Across Policy Units

Scientific Data
Achieving global development targets will largely depend on improvements made by developing and populous countries like India. Given the huge population base and diversely wide landscape of India, stakeholders and policy-makers at smaller geographic ...
Sunil Rajpal, Soohyeon Ko, George Leckie, Devika Jain, Jeffrey C. Blossom, Rockli Kim, S. V. Subramanian   +6 more
doaj   +1 more source

PISA 2012 mathematics literacy in Serbia: A multilevel analysis of students and schools [PDF]

Psihologija, 2018
In PISA 2012 cycle, the focus was on the mathematics literacy. Data collected in PISA survey in Serbia on 4684 respondents show that students on average have significantly lower performance compared to average OECD performance.
Lazarević Ljiljana B., Orlić Ana
doaj   +1 more source

The effect of student characteristics and socioeconomic status on mathematics achievement in Türkiye: Insights from TIMSS 2011-2019

International Journal of Assessment Tools in Education, 2023
This study examines the factors affecting the mathematics achievement of 8th-grade students in Türkiye using data from the TIMSS in 2011, 2015, and 2019. The data were analysed with multilevel (two-level) modelling.
Kübra Karakaya Özyer, Burçin Coşkun
doaj   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

Variation in Incentive Effects across Neighbourhoods

Survey Research Methods, 2014
Small monetary incentives increase survey cooperation rates, however evidence suggests that the appeal of incentives may vary across sample subgroups.
Mark J Hanly, George M Savva, Ian Clifford, Brendan J Whelan   +3 more
doaj   +1 more source

A Multilevel Analysis of Risk and Protective Factors for Adolescent Childbearing in Malawi

Social Sciences, 2021
Although teenage pregnancy and childbearing has declined throughout sub-Saharan Africa, the recent increase in teenage pregnancy in countries such as Malawi has prompted interest from social researchers.
Jesman Chintsanya, Monica Magadi, Gloria Likupe   +2 more
doaj   +1 more source

Fitting Multilevel Factor Models

SIAM Journal on Matrix Analysis and Applications
We examine a special case of the multilevel factor model, with covariance given by multilevel low rank (MLR) matrix~\cite{parshakova2023factor}. We develop a novel, fast implementation of the expectation-maximization algorithm, tailored for multilevel factor models, to maximize the likelihood of the observed data.
Tetiana Parshakova, Trevor Hastie, Stephen P. Boyd   +2 more
openaire   +2 more sources

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Effect of national partnerships on NAPLAN

Cogent Education, 2017
The annual National Assessment Program—Literacy and Numeracy (NAPLAN) measures the literacy and numeracy skills of primary and secondary students in Australia.
Hui Ping Chua, R. Nazim Khan, Stephen Humphry, Robert Hassell   +3 more
doaj   +1 more source