Results 71 to 80 of about 332,113 (340)

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

Nightwatch

open access: yesContemporary Aesthetics, 2010
In this essay I examine the features of night, in particular, urban night. I try to highlight the epistemological divide between day and night, light and darkness.
Justin Winkler
doaj  

Lignification in Scots Pine Callus as Reaction to Cultivation Conditions and Nutrient Medium [PDF]

open access: yesСибирский лесной журнал, 2014
The effect of nutrient medium composition and of the conditions of cultivation of Scots pine (Pinus sylvestris L.) callus on the morphology of its cells, the degree of their differentiation and lignification was studied. The morphological characteristics
G. F. Antonova   +2 more
doaj  

Chronotype and response to training during the polar night: a pilot study

open access: yesInternational Journal of Circumpolar Health, 2017
Background: An individual’s chronotype influences his or her physiological rhythms. Some studies have looked at the effect of time of day on the responses to exercise, but studies on the effect of long-term training are lacking. Objective:  To report the
Jacopo Antonino Vitale   +4 more
doaj   +1 more source

The Binary Oppositions in Joseph Conrad's Novel Heart of Darkness

open access: yesالأستاذ, 2021
The novel Heart of Darkness is regarded as one of Joseph Conrad's highly skilled works and seen as an important tale written between the years of 1898 - 1899, and also viewed as an assault on imperialism and unethical behaviors of the European ...
أ.م.د هدى كاظم علوان
doaj   +1 more source

The dark side of cosmology: Dark matter and dark energy [PDF]

open access: yesScience, 2015
A simple model with only six parameters (the age of the universe, the density of atoms, the density of matter, the amplitude of the initial fluctuations, the scale dependence of this amplitude, and the epoch of first star formation) fits all of our cosmological data . Although simple, this standard model is strange.
openaire   +3 more sources

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

Can UV light induce movement in cage-free laying hens?

open access: yesJournal of Applied Poultry Research, 2023
SUMMARY: In recent years, more farms have been transitioning to cage-free systems as multiple states passed regulations banning use of conventional cages, and several large food service companies pledged to exclusively source cage-free eggs by 2025–2026.
A.V. Mendoza, S. Weimer, Z. Williams
doaj  

History, trauma, demystification and narration in the novels Darkness and Animal kingdom by David Albahari [PDF]

open access: yesBaština
The paper explores the issues of history, trauma, demystification, and narration present in the novels Darkness and Animal Kingdom, written by the Serbian writer David Albahari. It begins with an introduction that discusses Albahari's literary opus, with
Kovačević Darko M.
doaj   +1 more source

Effect of photoperiod on somatic embryogenesis in different organs of chickpea (Cicer arietinum L.) [PDF]

open access: yesپژوهش‌های حبوبات ایران, 2016
Introduction Somatic embryogenesis is an efficient platform for the generation of transgenic plants and synthetic seeds (Kiran et al., 2005). Somatic embryo’s growth and development were influenced by different factors, including photoperiod, genotype as
ALI AKBAR MOZAFARI, Kazhal Kamangar
doaj   +1 more source

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