Some precepts of the urban sustainability movement derive from the premise that economic expansion, population growth, and physical sprawl lead to a decline in quality of life, ecological damage, and eventual unsustainability. But what about cities that are failing-losing population, losing investment, losing infrastructure, even losing land? This article challenges conventional sustainability concepts, usually derived from the experiences of ascending cities, with the notion of survivability that confronts declining cities. Should troubled cities, such as New Orleans, located on the eroding Gulf of Mexico coastal region of the state of Louisiana, be held to different sustainability standards? Could urban expansion, in some cases, actually stem environmental degradation and enhance survivability?
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http://dx.doi.org/10.1196/annals.1319.014 | DOI Listing |
Prokinetic agents are drugs used to enhance gastrointestinal motility and treat disorders such as Gastroesophageal Reflux Disease (GERD) and gastroparesis. pH-dependent release systems offer targeted drug delivery, allowing prokinetic agents to be released specifically in desired regions of the gastrointestinal tract. This optimizes drug efficacy and minimizes systemic side effects.
View Article and Find Full Text PDFClin Infect Dis
January 2025
Clinical Virology and STIs Group, Unit of Infectious Diseases and Microbiology, Hospital Universitario de Valme, Seville, Spain.
Vet Med Sci
January 2025
Department of Industrial Management, Faculty of Humanities, University of Tehran, Kish International Campus, Tehran, Iran.
Background: The poultry industry faces challenges with the high cost and environmental impact of Soybean meal. Feather meal, a byproduct with low digestibility due to its keratin content, is a potential alternative. Recent biotechnological advances, including enzymatic and bacterial hydrolysis, have enhanced its digestibility and nutritional value.
View Article and Find Full Text PDFPlant Biotechnol J
January 2025
State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
Small
January 2025
Institute for Sustainable Energy and Resources, Key Laboratory of Shandong Provincial Universities for Functional Molecules and Materials, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong, 266071, China.
Alkaline water (HO) electrolysis is currently a commercialized green hydrogen (H) production technology, yet the unsatisfactory hydrogen evolution reaction (HER) performance severely limits its energy conversion efficiency and cost reduction. Herein, PtRuFeCoNi high entropy alloys (HEAs) is synthesized and subsequently exploited electrochemically induced structural oxidation processes to construct self-reconfigurable HEAs, as an efficient alkaline HER catalyst. The optimized self-reconstructed PtRuFeCoNi HEAs with the HEAs and cobalt rutheniate interface (HEAs-CoRuO) exhibits excellent alkaline HER performance, requiring just 11.
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