Results 41 to 50 of about 824,701 (311)

Deforestation and Forest Degradation Due to Gold Mining in the Peruvian Amazon: A 34-Year Perspective

open access: yesRemote Sensing, 2018
While deforestation rates decline globally they are rising in the Western Amazon. Artisanal-scale gold mining (ASGM) is a large cause of this deforestation and brings with it extensive environmental, social, governance, and public health impacts ...
Jorge Caballero Espejo   +5 more
doaj   +1 more source

Wearable Tailored Passive Radiative Cooling Textile for Flexible Electronic Integration

open access: yesAdvanced Science, EarlyView.
A scalable, additive‐free wearable tailored passive radiative cooling textile (WRCT) with hierarchically structured fibers delivers exceptional thermal management, combining >95% solar reflectance, 0.96 mid‐infrared emissivity, and ultralow thermal conductivity (0.041 W/m·K).
Lung Chow   +24 more
wiley   +1 more source

Superlattice Architectures for Advancing Photothermal Catalysis: Mechanisms and Applications

open access: yesAdvanced Science, EarlyView.
This paper provides a timely overview of superlattice architectures in photothermal catalysis, with a systematic review on mechanisms at both atomic and macroscopic scales in different processes, challenges, and future opportunities. ABSTRACT Photothermal catalysis has emerged as a powerful strategy to complement photocatalysis by harnessing full ...
Yuzhao Wu   +5 more
wiley   +1 more source

Da tropicalização da soja à vocação para o agronegócio: transformações sociotécnicas sobre a cadeia de uma commodity [PDF]

open access: yesSociologias
Resumo A ideia de que o Brasil possui uma inclinação natural e inerente – uma vocação –, não apenas para a agricultura, mas para o agronegócio, é um imaginário recorrentemente mobilizado por políticos, empresários, produtores rurais, representantes de ...
Vanessa Parreira Perin
doaj   +2 more sources

Modelling Risk for Commodities in Brazil: An Application for Live Cattle Spot and Futures Prices

open access: yesCommodities, 2023
This study analyses a series of live cattle spot and futures prices from the Boi Gordo Index (BGI) in Brazil. The objective is to develop a model that best portrays this commodity’s behaviour to estimate futures prices more accurately.
Renata G. Alcoforado   +3 more
doaj   +1 more source

(WP 2011-07) Factoring Emerging Markets into the Relationship Between Global Liquidity and Commodities [PDF]

open access: yes, 2011
What caused the mid-2000s world commodity price “bubble” and the recent commodity price growth during the economic recovery after the 2007-2009 recession?
Chowdhury, Abdur, Landgraf, Steven
core   +1 more source

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

open access: yesAdvanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

Organic Photoelectrochemical Cells Beyond Performance: Interface and Catalyst Engineering for Durability

open access: yesAdvanced Energy Materials, EarlyView.
Organic photoelectrochemical cells based on π‐conjugated semiconductors offer a versatile platform for solar fuel generation. This review outlines operating principles, device architectures, and key metrics, and highlights advances in p‐ and n‐type photoelectrodes, interfacial engineering, and catalyst integration.
Jaehyeong Kim   +8 more
wiley   +1 more source

Beyond the Ban—Shedding Light on Smallholders' Price Vulnerability in Indonesia's Palm Oil Industry

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The Indonesian government imposed a palm oil export ban in April 2022 to address rising cooking oil prices. This study explores oil palm smallholders' vulnerability to the policy using descriptive statistics, Lasso, and post‐Lasso OLS regressions.
Charlotte‐Elena Reich   +3 more
wiley   +1 more source

Evaluation of Eco-Efficiency of Two Alternative Agricultural Biogas Plants

open access: yesApplied Sciences, 2018
Implementation of the circular economy is one of the priorities of the European Union, and energy efficiency is one of its pillars. This article discusses an effective use of agri-food industry waste for the purposes of waste-to-energy in biogas plants ...
Magdalena Muradin   +2 more
doaj   +1 more source

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