Results 61 to 70 of about 4,498,722 (345)

Maximum principles for boundary-degenerate second-order linear elliptic differential operators

, 2013
We prove weak and strong maximum principles, including a Hopf lemma, for smooth subsolutions to equations defined by linear, second-order, partial differential operators whose principal symbols vanish along a portion of the domain boundary.
Feehan, Paul M. N.
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Quantitative study on the water vapor transport characteristics of an extreme precipitation event in North China

Atmospheric Science Letters
North China experienced an extreme precipitation event from July 29 to August 1, 2023 (i.e., the “23.7” event) causing severe floods, significant infrastructure damage and multiple fatalities.
Xiaofan Li, Yufei Chang, Changwen Yu, Zhiqiang Gong, Yunhao Li, Zhongjie Zhang, Shaojing Che   +6 more
doaj   +1 more source

Transforming First Nations Health Care in British Columbia: An Organizational Challenge

International Indigenous Policy Journal, 2018
Following a series of agreements on First Nations health care in British Columbia beginning in 2005, several organizations were created to contribute to the development of a system of health care for First Nations in the province, with the aim of ...
Stephen Wilmot
doaj   +1 more source

Association between screen time and hyperactive behaviors in children under 3 years in China

Frontiers in Psychiatry, 2022
BackgroundScreen time during early life has increased dramatically among Chinese children. Excessive screen time has raised growing concerns about the neuropsychological development of children.
Jian-Bo Wu, Xiao-Na Yin, Shuang-Yan Qiu, Guo-Ming Wen, Wei-Kang Yang, Jing-Yu Zhang, Ya-Fen Zhao, Xin Wang, Xiao-Bing Hong, DaLi Lu, Jin Jing   +10 more
doaj   +1 more source

Editorial: Beyond all boundaries the meteoric rise of environmental crime [PDF]

, 2023
Bonnie Rippingille
openalex   +1 more source

Particle Creation by a Moving Boundary with Robin Boundary Condition

, 2006
We consider a massless scalar field in 1+1 dimensions satisfying a Robin boundary condition (BC) at a non-relativistic moving boundary. We derive a Bogoliubov transformation between input and output bosonic field operators, which allows us to calculate ...
, Alves D T, B Mintz, C Farina, Chen G, Crocce M, de Albuquerque L C, Fulling S A, Fulling S A, Jaekel M T, Maia Neto P A, Maia Neto P A, Maia Neto P A, Maia Neto P A, Mintz B, Mostepanenko V M, P A Maia Neto, R B Rodrigues, Romeo A   +18 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

The Metaphor of Boundary Crossing in Classical Sanskrit Literature

Cracow Indological Studies, 2019
The paper deals with the metaphor the non-physical boundaries are physical boundaries in Classical Sanskrit literature (kāvya), especially in the mahākāvya (sargabandha) or the court epic genre.
Anna Trynkowska
doaj   +1 more source