Results 121 to 130 of about 445,337 (327)

Hamilton Cycles in Infinite Cubic Graphs

open access: yesThe Electronic Journal of Combinatorics, 2018
Investigating a problem of B. Mohar, we show that every one-ended Hamiltonian cubic graph with end degree 3 contains a second Hamilton cycle. We also construct two examples showing that this result does not extend to give a third Hamilton cycle, nor that it extends to the two-ended case.
openaire   +3 more sources

Taurocholic Acid Is Associated With Disturbed Functional Connectivity in the Hippocampus of Patients With Depression

open access: yesAdvanced Science, EarlyView.
This study identifies elevated taurocholic acid (TCA) in Major Depressive Disorder patients. Gut microbiome‐associated TCA impairs hippocampal neurogenesis, triggers microglia activation, and elicits depression‐like behavior in mice via the S1PR2. In patients, functional neuroimaging reveals that serum TCA levels correlate with altered functional ...
Xiaoying Cai   +12 more
wiley   +1 more source

Fluid Retention over the Menstrual Cycle: 1-Year Data from the Prospective Ovulation Cohort

open access: yesObstetrics and Gynecology International, 2011
We report menstrual and mid-cycle patterns of self-reported “fluid retention” in 765 menstrual cycles in 62 healthy women. Self-reported “fluid retention,” commonly described as bloating, is one element of the clinical assessment and diagnosis of ...
Colin P. White   +3 more
doaj   +1 more source

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

open access: yesAdvanced 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   +14 more
wiley   +1 more source

Timing and Business Cycle Analysis in OPEC Member Countries Through Markov Switching Autoregressive Model [PDF]

open access: yesPizhūhishnāmah-i Iqtiṣād-i Inirzhī-i Īrān, 2012
There are two approaches for timing business cycles, namely "growth cycle" and "classical cycle". Though different, these approaches are complementary.
Kambiz Hozhabr Kiani, Alireza Moradi
doaj  

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

open access: yesAdvanced 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   +9 more
wiley   +1 more source

Square of a Hamilton cycle in a random graph [PDF]

open access: green, 2016
Patrick Bennett   +2 more
openalex   +1 more source

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

open access: yesAdvanced 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   +8 more
wiley   +1 more source

TNEA Regulates Hippocampal Oscillation by Improving Inhibitory Synaptic Plasticity to Ameliorates Cognitive Impairment in Alzheimer's Disease

open access: yesAdvanced Science, EarlyView.
TNEA improves cognition in 5xFAD mice by modulating parvalbumin‐positive interneurons in hippocampal CA1. TNEA enhances gamma oscillations during rest and theta power during novel object recognition, restoring excitation/inhibition balance. These findings support TNEA as a minimally invasive therapy for Alzheimer's disease.
Zhongzhao Guo   +15 more
wiley   +1 more source

Home - About - Disclaimer - Privacy