Results 51 to 60 of about 14,111,815 (305)

Improving High‐Temperature Operational Stability of Inverted Perovskite Solar Cells Through MXene Heat‐Dissipating Layers

open access: yesAdvanced Science, EarlyView.
MeO‐2PACz‐functionalized MXene nanosheets create a thermally conductive buried interface in inverted perovskite solar cells. The interface improves heat spreading, suppresses defects and ion migration, and strengthens charge extraction, extending T80 at 65°C from 141 to 687 h while maintaining competitive efficiency.
Masoud Karimipour   +12 more
wiley   +1 more source

La ilegalidad como orden. Hegemonía y política migratoria en la República Dominicana

open access: yesSi Somos Americanos, 2019
Desde sus orígenes, la política migratoria dominicana frente a Haití ha estado marcada por una estrategia de doble cara: de un lado, se establece un orden cada vez más represivo y discriminatorio en perjuicio de los trabajadores migrantes haitianos y los
Anselmo Muñiz, Carlos Morel
doaj   +1 more source

Participatory planning : reflexions for the social sciences and the social work [PDF]

open access: yes, 2008
: After more than a decade in the institutionalization of Participatory Planning in Colombia, it is necessary to direct the reflections towards different fields to those of the normative.
Gómez Hernández, Esperanza   +1 more
core  

Al1−xHfxN$\text{Al$_{1-x}$Hf$_{x}$N}$ Thin Films with Enhanced Piezoelectric Responses for GHz Surface Acoustic Wave Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Reactively sputtered wurtzite Al1‐xHfxN thin films, exhibiting strong c‐axis texture and enhanced piezoelectric response, are demonstrated as a cost‐effective alternative to Al1‐xScxN. X‐ray absorption spectroscopy reveals that cross‐gap N 2p–Hf 5d hybridization increases the Born effective charge and enables a multifold increase in piezoelectric ...
Laura I. Wagner   +14 more
wiley   +1 more source

Linking physical violence to women’s mobility in Chile

open access: yesEPJ Data Science, 2023
Despite increased global attention on violence against women, understanding the factors that lead to women becoming victims remains a critical challenge.
Hugo Contreras   +6 more
doaj   +1 more source

Tuberculosis y hacinamiento carcelario desde la perspectiva de las inequidades sociales en salud en Colombia, 2018

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2022
Introducción. La población privada de la libertad se encuentra afectada por la tuberculosis debido al hacinamiento carcelario. Esta situación refleja una inequidad en salud, entendida esta como una diferencia injusta y evitable. Objetivo.
Martha Patricia López   +2 more
doaj   +1 more source

Agudiza el desarrollo las desigualdades sociales? [PDF]

open access: yesRevista Mexicana de Sociología, 2003
The article provides the information and theoretical interpretation required for a comparison of six countries (France, Sweden, Spain, Argentina, Brazil and Costa Rica). The author attempts to ascertain whether social change has reduced the relative inequalities between the positions of their class structures and status and whether it has promoted ...
openaire   +2 more sources

Patterns of Radiologic Service Utilization and Imaging Expenditure in Supercentenarians in Colombia

open access: yesAGING MEDICINE, EarlyView.
Analysis of Colombian administrative health data from 2014 to 2023 identified a distinct pattern of radiologic service utilization among supercentenarians (≥ 110 years). General radiology, ultrasound, and computed tomography were the most frequently used modalities, accounting for most imaging examinations.
Gabriela Puentes   +3 more
wiley   +1 more source

Similarity in Indicators of Attractiveness in Heterosexual Couples, and their Relationship with Satisfaction and Trust

open access: yesPsykhe, 2022
In our species, the formation and maintenance of romantic partners is a nonrandom process. In this sense, similarity between members of the couple can be relevant for the beginning of the relationship (i.e., assortative mating) and maintenance, being ...
Paula Pávez   +5 more
doaj   +1 more source

Multirobot Aerial Soft Manipulator for Floating Litter Collection

open access: yesAdvanced Intelligent Systems, EarlyView.
A multirobot aerial manipulator enables autonomous floating litter collection by controlling the shape of a flexible rope equipped with a hook‐based tool. Adaptive rope‐shape planning enhances grasping performance while reducing tension, demonstrating the potential of aerial robots for floating litter removal. Removing floating litter from water bodies
Antonio González‐Morgado   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy