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J Environ Manage 2022 Jun 28;318:115626. Epub 2022 Jun 28.

Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim NO-7491, Norway.

In cold and arid areas, variations of ambient temperature not only lead to a large amount of heat loss from anaerobic digestion reactors but also greater challenges in the stable production of biogas. Common temperature-controlled methods of biogas production, such as coal combustion, electric heating, biogas combustion and so on, are expensive and high energy-consuming. Openly, solar energy is economical and suitable for stable biogas production. Read More

Minerva Endocrinol (Torino) 2022 Jul 1. Epub 2022 Jul 1.

Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, China -

Background: Low cardiorespiratory fitness (CRF) is a risk factor for many chronic diseases. This study aimed to evaluate the CRF of a sample of adults with different glucose tolerance statuses to explore its relationship with early abnormal glucose metabolism according to sex.

Methods: A total of 93 participants were assigned to three groups, i. Read More

Sci Total Environ 2022 Jun 27:157012. Epub 2022 Jun 27.

University of Palermo, Department of Engineering, Viale delle Scienze Ed. 9, Palermo 90128, Italy.

This study assesses the energy and environmental performances of electricity produced from Italian anaerobic digestion coupled with combined heat and power plants. The Life Cycle Assessment methodology is applied to a set of plants characterised by different power sizes (from 100 to 999 kW) and feedstock compositions (variable rates of agricultural products and by-products). Then, the average eco-profile of the produced electricity is compared with electricity produced by the national grid and photovoltaic panels. Read More

Appl Microbiol Biotechnol 2022 Jun 27. Epub 2022 Jun 27.

Center of Wastewater Resource Recovery, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou city, Fujian, 350002, China.

The electricity production via psychrophilic microbial fuel cell (PMFC) for wastewater treatment in cold regions offers an alternative to avoid the unwanted methane dissolution of traditional anaerobic fermentation. But, it is seldom reported by mixed-culture, especially closed to 0 °C. Thus, a two-chamber mixed-culture PMFC at 4 °C was successfully operated in this study using acetate as an electron donor. Read More

Front Microbiol 2022 10;13:873281. Epub 2022 Jun 10.

Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.

Coastal marine ecosystems are some of the most diverse natural habitats while being highly vulnerable in the face of climate change. The combination of anthropogenic influence from land and ongoing climate change will likely have severe effects on the environment, but the precise response remains uncertain. This study compared an unaffected "control" Baltic Sea bay to a "heated" bay that has undergone artificial warming from cooling water release from a nuclear power plant for ~50 years. Read More