Results 71 to 80 of about 2,522,412 (290)

Integration of circadian and hypoxia signaling via non‐canonical heterodimerization

open access: yesFEBS Letters, EarlyView.
CLOCK, BMAL1, and HIFs are basic helix‐loop‐helix and Per‐Arnt‐Sim domain (bHLH‐PAS) proteins, which function as transcription factors. bHLH‐PAS proteins are designated in two classes. Many class I proteins are regulated by environmental signals via their PAS domains, but such signals have not been identified for all.
Sicong Wang, Katja A. Lamia
wiley   +1 more source

Histological Study on the Gonads of Reared Juvenile Sturgeon

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1998
Histological studies are of the most adequate way to determine the physiological condition of fish organs. The present research was carried out in order to conduct a qualitative evaluation of the growth and development of the reproductive system of three
M. Bahmani; R. Kazemi
doaj  

Specific of accumulation of manganese in organs and tissues of Hereford cattle

open access: yesBrazilian Journal of Biology
The elemental status of cattle is one of the important factors, which determine its growth, fertility, fetal development, meat and dairy production, etc.
K. N. Narozhnykh   +5 more
doaj   +1 more source

Medical Errors [PDF]

open access: yes, 2011
Overview: Time of Death: 5:07 p.m. – Proceeding the solemn afternoon of February 22nd 2003, the Santillian family listened on as doctors told them that their cherished loved one was officially pronounced brain dead and would soon have to be taken off ...
Spall, Jennifer
core   +1 more source

Posterior stabilized designs in modern total knee arthroplasty: Vestigial organs [PDF]

open access: yes, 2019
Clinical difference between posterior-stabilized (PS) and cruciate-retaining (CR) designs in total knee arthroplasty has remained elusive for decades. This classic debate has been given pause due to futile efforts to prove one design superior over the ...
Meneghini, R. Michael, Stefl, Michael
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

Los órganos electorales estatales y la reforma política de 2013

open access: yesRevista del Instituto Electoral del Estado de México. Apuntes Electorales, 2014
En nuestro país, desde la creación de los órganos electorales, éstos siempre han vivido en una tensión constante entre la autonomía y la subordinación.
Jorge Gerardo Flores Díaz   +1 more
doaj  

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Preliminary assessment of dose distribution on the spatial micro level for internal exposure of alveolar epithelium of rats by 56Mn

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2019
Special dosimetry study of experimental rats exposure by sprayed 56Mn powder was conducted during experiments in order to study internal irradiation effects.
В.Ф. Степаненко   +22 more
doaj   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

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