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The need for faster and deeper transitions toward more sustainable development pathways is now widely recognized. How to meet that need has been at the center of a growing body of academic research and real-world policy implementation. This paper presents our perspective on some of the most powerful insights that have emerged from this ongoing work. In particular, we highlight insights on how sustainability transitions can be usefully conceptualized, how they come about and evolve, and how they can be shaped and guided through deliberate policy interventions. Throughout the paper, we also highlight some of the many how questions that remain unresolved and on which progress would be especially helpful for the pursuit of sustainable development. Our approach to these "how" questions on sustainability transitions draws on two strands of solution-driven research and policy advice: one emerging from studies of how human societies interact with nature and the other emerging from studies of how those societies interact with their technologies. Consumption-production systems have been a focus of extensive work in both strands. To help build bridges between them, we recently brought together a cross-section of relevant scholars for a PNAS Special Feature on "Sustainability transitions in consumption-production systems." Their contributions are summarized in a companion paper we have written to introduce the Special Feature [F. W. Geels, F. Kern, W. C. Clark, . (2023)]. We draw on that work in the Perspective we present here as well as our reading of the relevant literatures.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10666003 | PMC |
http://dx.doi.org/10.1073/pnas.2310070120 | DOI Listing |
Cancer Commun (Lond)
December 2024
Department of Biomedical Engineering, Department of Electrical and Computer Engineering, Photonics Center, Boston University, Boston, Massachusetts, USA.
Background: Adaptative desaturation in fatty acid (FA) is an emerging hallmark of cancer metabolic plasticity. Desaturases such as stearoyl-CoA desaturase (SCD) and fatty acid desaturase 2 (FADS2) have been implicated in multiple cancers, and their dominant and compensatory effects have recently been highlighted. However, how tumors initiate and sustain their self-sufficient FA desaturation to maintain phenotypic transition remains elusive.
View Article and Find Full Text PDFSmall Methods
December 2024
The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China.
Developing superwetting coatings with environmental adaptability is critical for sustainable industrial applications. However, traditional anti-wetting coatings often fall short due to their susceptibility to environmental factors (UV light, temperature, mold growth, and abrasion) and inadequate stain resistance in complex media. Herein, a durable ex situ pH-responsive coating with reversible wettability switching, engineered by integrating hydrophobic polydimethylsiloxane and tertiary amine structures is presented.
View Article and Find Full Text PDFHuan Jing Ke Xue
January 2025
College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, China.
The food system is an important source of greenhouse gas emissions, and the carbon footprint analysis of food consumption under the dual carbon background is of great significance for the sustainable development of the food system. To reveal the differences in food consumption patterns and carbon footprints between urban and rural residents in China, the life cycle carbon emission coefficient method was used to measure the direct carbon emissions of food consumption by urban and rural residents in China from 2000 to 2021. From the perspective of carbon footprint composition, the following main conclusions were drawn: ① The structure of food consumption among residents in China shifted from predominantly plant-based to a balanced consumption of both plant- and animal-based foods, reducing the disparity in various food consumption quantities between urban and rural residents.
View Article and Find Full Text PDFBackground: New vaccines for pregnant women have recently been introduced in some high-income countries to protect infants in early life. Implementing maternal immunisation (MI) successfully in low- and middle-income countries will require planning and adaptations to immunisation and maternal health programs. To inform cost of MI delivery studies, we gathered perspectives from key stakeholders in five countries (Bangladesh, Ghana, Kenya, Mozambique, and Nepal) regarding health system requirements, opportunities, and challenges to introducing new maternal vaccines into routine health programs.
View Article and Find Full Text PDFJ Am Chem Soc
December 2024
Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
The photoswitching of supramolecular host-guest complexes is the basis of numerous molecularly controlled macroscopic functions, such as sol-gel transition, photopharmacology, the active transport of ions or molecules, light-powered molecular machines, and much more. The most commonly used systems employ photoactive azobenzene guests and synthetic host molecules, which bind as the stable isomers and dissociate as the forms after exposure to UV light. We present a new, extraordinarily efficient cucurbit[7]uril (CB7)/diazocine host/guest complex with inverted stability that self-assembles under UV irradiation and dissociates in the dark.
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