Results 71 to 80 of about 36,347 (337)

Are agrochemical‐free and biodiversity‐friendly attributes substitutes or complements? Evidence from a coffee choice experiment

open access: yesAgribusiness, EarlyView.
Abstract Eco‐labels inform consumers about the sustainable attributes of a product, but consumer face challenges to differentiate and select for specific attributes. Certification programs are similarly challenged to incentivize adoption of sustainable practices in product supply chains when consumer ability to differentiate sustainable attributes is ...
Nicolas Gatti   +5 more
wiley   +1 more source

Biocatalytic Alkylation of Ambident Nucleophiles Enables Selective N‐Functionalization of Heterocycles and Late‐Stage Modifications

open access: yesAngewandte Chemie, EarlyView.
N‐alkylated heteroarenes are key structural motifs in bioactive compounds, but their regioselective synthesis via coupling of readily available azoles with haloalkanes remains very challenging. Here, we present a mild biocatalytic approach that proceeds on gram‐scale, is highly chemo‐ and regioselective, offering rapid access to valuable N‐alkylated ...
Felipe Ospina   +10 more
wiley   +2 more sources

The impact of the Russia–Ukraine war on stock prices, profits and perceptions in the food supply chain

open access: yesAgribusiness, EarlyView.
Abstract The Russian invasion of Ukraine in February 2022 had profound consequences for the global economy. As both countries are major commodity exporters, the food value chain was also affected. This study investigates the impact of the invasion on stock prices, profitability and sentiments of agribusinesses along the food supply chain by using an ...
Julia Höhler   +2 more
wiley   +1 more source

Copper Single‐Atom Catalyst for Efficient C─S Coupling in Thioether Synthesis

open access: yesAngewandte Chemie, EarlyView.
We report the first single‐atom catalyst for C─S cross‐coupling, featuring atomically dispersed Cu sites on mesoporous carbon nitride. The catalyst enables efficient, selective, and recyclable thioether synthesis under mild conditions and on a gram scale.
Theodore A. Gazis   +9 more
wiley   +2 more sources

The Role of Coordination Mechanisms and Transaction Costs Promoting Sustainability Performance in Agri‐Food Supply Chains: Evidence From Ecuador

open access: yesAgribusiness, EarlyView.
ABSTRACT Social tensions and resource depletion pose significant challenges to the agri‐food sector, highlighting the need for coordinated strategies to ensure sustainability in supply chains. Despite its critical importance, the relationship between coordination mechanisms and sustainability performance remains underexplored.
Carlos Moreno‐Miranda, Liesbeth Dries
wiley   +1 more source

Transition Metal‐Free Formal C─H/C─H Coupling of Arylacetamides and Sulfoxides: An Interrupted Pummerer/[2,3]‐sigmatropic Rearrangement Sequence

open access: yesAngewandte Chemie, EarlyView.
A two‐step formal C─H/C─H coupling of arylacetamides with sulfoxides proceeds via the formation and rearrangement of little‐known α‐amido sulfonium salts and provides an alternative to transition metal‐catalyzed C─H activation. The protocol is showcased in a short synthesis of a dopamine D1 receptor allosteric modulator.
Shibo Zhang   +5 more
wiley   +2 more sources

Smart Hydrogels for Sustainable Agriculture

open access: yesEcoMat
The growing global population, coupled with increasing food demand and water scarcity, has intensified the need for advancements in modern agriculture.
Jungjoon Park, Weixin Guan, Guihua Yu
doaj   +1 more source

Agrochemical properties of gray-pasture soils under irrigation of mirzachol oasis [PDF]

open access: yesBIO Web of Conferences
This article presents the results of research conducted in the irrigated lands of the Mirzachol oasis, including information on the amounts of total and mobile shales of humus and nutrients in different degrees of plastered grassland soils.
Abdurakhmanov Nodirjon   +8 more
doaj   +1 more source

Do Sustainable Agricultural Practices Boost Production and Technical Efficiency? A Case Study of Coffee Smallholders in Peru

open access: yesAgribusiness, EarlyView.
ABSTRACT Smallholder agriculture remains a cornerstone for economic development and poverty reduction in Latin America. Their transition to sustainable agricultural production is critical in the face of the environmental challenges posed by conventional farming practices and is a key pathway to achieving the United Nations' Sustainable Development ...
Gabriela Carbajo‐Alvarez   +2 more
wiley   +1 more source

Unveiling an Alternative Mechanism for Lewis Basic Selenium as a C─H Hydrogen Bond Catalyst and Its Application in the Halogenation of Arenes

open access: yesAngewandte Chemie, EarlyView.
This work demonstrates an unconventional mechanism in Lewis basic selenium‐catalyzed electrophilic halogenation, where in situ oxidation of selenourea by the halogen source generates hypervalent Se‐imidazolium species. These intermediates function as hydrogen‐bond catalysts to activate N‐haloamide reagents, enabling efficient and mild halogenation of ...
Jingxian Huang   +6 more
wiley   +2 more sources

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