Results 91 to 100 of about 33,701 (288)

Temporal variability and site specificity of thermomechanical weathering in a temperate climate

Frontiers in Earth Science
Thermomechanical processes caused by short- and long-term temperature fluctuations are a prevalent weathering mechanism on exposed rock walls. While many authors have explored the potential for thermomechanical weathering in alpine and polar regions, few
Henry J. M. Gage, Henry J. M. Gage, Julia P. Nielsen, Carolyn H. Eyles   +3 more
doaj   +1 more source

Tight bounds for powers of Hamilton cycles in tournaments

, 2022
Nemanja Draganić, David Munhá Correia, Benny Sudakov   +2 more
openalex   +1 more source

The probability of selecting $k$ edge-disjoint Hamilton cycles in the complete graph [PDF]

, 2020
Asaf Ferber, Kaarel Haenni, Vishesh Jain
openalex   +1 more source

New Ore-type Conditions for Hamilton Cycles and Spanning Trees with few leaves [PDF]

, 2021
Zh. G. Nikoghosyan
openalex   +1 more source

A Cold Stress‐Activated Endocrine Sentinel Chemical Hormone Promotes Insect Survival via Mitochondrial Adaptations Through the Adipokinetic Hormone Receptor

Advanced Science, EarlyView.
Seasonal cold adaptation is vital for insect survival, yet the molecular mechanisms linking diapause to mitochondrial resilience remain largely unresolved. We identify ascaroside C9 (asc‐C9) as a key endocrine signal that enhances diapause survival during cold stress by activating the AKHR–PGC1α–UCP4 axis, thereby driving cold‐induced lipolysis and ...
Jiao Zhou, Junxian Chen, Hongxia Zhang, Lu Guo, Kevin Mai, Elijah Abraham, Dilip V. Prajapati, Yue Chang, Jing Ning, Xinchen Wang, Defeng Li, Dan‐Dan Zhang, Jianghua Sun, Rebecca A. Butcher, Lilin Zhao   +14 more
wiley   +1 more source

Walking to work in Canada: health benefits, socio-economic characteristics and urban-regional variations

BMC Public Health, 2011
Background There is mounting concern over increasing rates of physical inactivity and overweight/obesity among children and adult in Canada. There is a clear link between the amount of walking a person does and his or her health.
Williams Allison, Kitchen Peter, Chowhan James   +2 more
doaj   +1 more source

Loose Hamilton cycles in hypergraphs

Discrete Mathematics, 2011
We prove that any k-uniform hypergraph on n vertices with minimum degree at least n/(2(k-1))+o(n) contains a loose Hamilton cycle. The proof strategy is similar to that used by K hn and Osthus for the 3-uniform case. Though some additional difficulties arise in the k-uniform case, our argument here is considerably simplified by applying the recent ...
Keevash, Peter, Kühn, Daniela, Mycroft, Richard, Osthus, Deryk   +3 more
openaire   +2 more sources

Targeting Itga8 Mitigates Neurogenic Bladder Fibrosis Driven by Trem2⁺ Macrophage‐Derived Fn1 via FAK/RhoA/ROCK Signaling

Advanced Science, EarlyView.
Normal bladders exhibit quiescent fibroblasts/macrophages, whereas neurogenic bladders show acute‐phase Itga8⁺ fibroblast expansion driven by Trem2⁺ macrophage‐secreted Fn1, which activates FAK/RhoA/ROCK signaling, promotes cytoskeletal remodeling, and upregulates pro‐fibrotic genes.
Jiaxin Wang, Siyuan Wang, Lida Ren, Xinqi Liu, Lei Zhang, Peng Hu, Wenchao Xu, Shuaixiang Zheng, Jihong Liu, Qing Ling   +9 more
wiley   +1 more source

Optimal covers with Hamilton cycles in random graphs [PDF]

, 2012
Dan Hefetz, Daniela Kühn, John Lapinskas, Deryk Osthus   +3 more
openalex   +1 more source

Astrocytic PERK Deficiency Drives Prefrontal Circuit Dysfunction and Depressive‐Like Behaviors

Advanced Science, EarlyView.
Chen et al. show that the endoplasmic reticulum (ER) stress sensor PERK is downregulated in prefrontal cortex (PFC) astrocytes in major depressive disorder and in chronic‐stress mouse models. In young mice, astrocyte‐specific PERK loss reduces the synaptogenic cue thrombospondin‐1 (TSP1), leading to synaptic and circuit deficits and depressive‐like ...
Kai Chen, Riya Gupta, Yosuke M. Morizawa, Yu Qin, Xingyu Du, Cynthia Pang, Osama Al‐Dalahmah, Maura B. Dupont, Guang Yang   +8 more
wiley   +1 more source