Results 91 to 100 of about 4,524,925 (299)

La sustentabilidad en contra de las lógicas del Estado: barreras políticas e institucionales en el sector de infraestructura en Chile

open access: yesNaturaleza y Sociedad: Desafíos Medioambientales
El Estado suele ser representado como una entidad progresista que facilita los procesos de transición. Sin embargo, este artículo examina las limitaciones que enfrentan las instituciones estatales, caracterizadas por su resistencia al cambio y su arraigo
Denise Misleh   +3 more
doaj   +1 more source

Strong Fully Reprocessable Engineered Wood Composites

open access: yesAdvanced Materials, EarlyView.
Engineering a hyperbranched adhesive with complementary imine‐bond and hydrogen‐bond networks, combining it with wood particles to fabricate the wood composite (WP/HTP) under mild hot‐pressing conditions. The WP/HTP exhibits 100% mechanical strength recovery after three cycles of reprocessing, and the reprocessed modulus of rupture (MOR) and modulus of
Xilin Zhang   +9 more
wiley   +1 more source

World economic situation and prospects 2017 [PDF]

open access: yes, 2017
The World Economic Situation and Prospects 2017 is a joint product of the United Nations Department of Economic and Social Affairs (UN/DESA), the United Nations Conference on Trade and Development (UNCTAD) and the five United Nations regional ...
UN.ESCWA   +6 more
core   +1 more source

Dissecting the digital divide: A household fixed effects approach to estimating gender gaps in digital skills of youth in low- and middle-income economies

open access: yesHeliyon
This study investigates gender gaps in digital skills among youth (15–24 years old) in 32 low- and middle-income economies using data from UNICEF-supported and internationally comparable Multiple Indicator Cluster Surveys (MICS).
Garen Avanesian   +3 more
doaj   +1 more source

Biomass DNA: An Emerging Building Block for Advanced Materials

open access: yesAdvanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

Metal Compound‐Based Non‐Enzymatic Electrochemical Cholesterol Sensors: Emerging Materials and Mechanistic Insights

open access: yesAdvanced Materials Interfaces, EarlyView.
This review discusses recent progress in metal complex‐based, non‐enzymatic electrochemical sensors for cholesterol detection. We examine metal oxides, metal sulfides, and hybrid nanomaterials, highlighting their catalytic mechanisms and material design strategies.
Longfei (Jack) Yin   +6 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Building capacities in Sub-Saharan African countries for antimicrobial resistance surveillance in the food and agriculture sectors using the FAO ATLASS tool

open access: yesFrontiers in Veterinary Science
FAO has developed the ‘Assessment Tool for Laboratories and AMR Surveillance Systems” (FAO-ATLASS) to support the national food and agriculture sectors in describing and assessing their AMR surveillance system in a standardized manner.
Labia Irene I. Ouoba   +16 more
doaj   +1 more source

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

open access: yesAdvanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti   +3 more
wiley   +1 more source

Our Planet: The magazine of the United Nations Environment Programme [PDF]

open access: yes, 2003
Magazine of the United Nations Environment Programme discussing worldwide environmental policies and other concerns. This issue is devoted to problems with enforcing laws and regulations that protect the environment and safeguard health and ...
Falt, Eric   +3 more
core  

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