Results 71 to 80 of about 743,434 (310)

Development of PMMA composites with tungsten trioxide for improved gamma radiation shielding in microsatellites

Scientific Reports
Satellites are exposed to various types of radiation and extreme temperatures in space, which can lead to damage and malfunctioning of critical components.
Nourhan Hesham, Hosnia M. Abu-Zeid, A. Nada, Ibrahim S. Yahia, Mai S. A. Hussien, H. M. Diab, Mohammed AbuBakr Ali, Ahmed T. Mosleh, Dalia Elfiky   +8 more
doaj   +1 more source

Change in time spent visiting and experiences of green space following restrictions on movement during the COVID-19 pandemic: a nationally representative cross-sectional study of UK adults

BMJ Open, 2021
Objectives Green space positively influences health and well-being; however, inequalities in use of green space are prevalent. Movement restrictions enforced due to the COVID-19 pandemic could have exacerbated existing inequalities regarding who visits ...
Jonathan R Olsen, Natalie Nicholls, Richard Mitchell, Hannah Burnett   +3 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

FEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Deconstructing urban green justice and well-being: a multi-group structural equation modeling analysis based on the activity space perspective

Frontiers in Public Health
IntroductionAgainst the backdrop of a global shift toward greener cities, equitable access to urban green spaces has increasingly been recognized for its impact on residents’ well-being.
Shaobo Liu, Shaobo Liu, Jialing Qi, Jialing Qi, Yi Yang, Yi Yang, Wen Huo, Wen Huo, Jiang Li, Jiang Li, Yating Chang, Yating Chang, You Peng   +12 more
doaj   +1 more source

Using SPOT Data and FRAGSTAS to Analyze the Relationship between Plant Diversity and Green Space Landscape Patterns in the Tropical Coastal City of Zhanjiang, China

Remote Sensing, 2020
Urban green spaces provide a host of ecosystem services, the quantity and structure of which play an important role in human well-being. Rapid urbanization may modify urban green spaces, having various effects on plant diversity.
Xia-Lan Cheng, Mir Muhammad Nizamani, C.Y. Jim, Kelly Balfour, Liang-Jun Da, Salman Qureshi, Zhi-Xin Zhu, Hua-Feng Wang   +7 more
doaj   +1 more source

Ownership and Belonging in Urban Green Space [PDF]

, 2018
This chapter examines publicly accessible urban green spaces, from both anthropological and socio-legal perspectives. It explores the concept of communal property through a case study of Heeley People’s Park and two other urban parks in Sheffield, UK. It draws on a range of sources, including evidence of individual and collective practices which have ...
Abram, Simone, Blandy, Sarah
openaire   +3 more sources

Does access to neighbourhood green space promote a healthy duration of sleep? Novel findings from a cross-sectional study of 259 319 Australians

, 2013
Objectives: Experiments demonstrate that exposure to parks and other 'green spaces' promote favourable psychological and physiological outcomes. As a consequence, people who reside in greener neighbourhoods may also have a lower risk of short sleep ...
Astell-Burt, Thomas (R16977), Feng, Xiaoqi (R17108), Feng, Xiaoqi, Astell-Burt, Thomas, Kolt, Gregory S., Kolt, Gregory S. (R11602)   +5 more
core   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source