Results 61 to 70 of about 2,700,976 (288)

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

Compression wood in Pinus radiata II: Density and chemical composition Madera de compresión en Pinus radiata II: Densidad y compuestos químicos

open access: yesMaderas: Ciencia y Tecnología, 2009
Ten 22 year old radiata pine trees growing in two stands in Chile, one in clay and the other in humid sand soils showing some lean, were assessed for chemical composition and wood density of compression wood.
J. E Díaz-vaz   +5 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

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Efeito da procedência em algumas propriedades da madeira de Gallesia integrifolia (Spreng.) Harms. Effect of provenance in some wood properties of Gallesia integrifolia (Spreng.) Harms. [PDF]

open access: yesRevista do Instituto Florestal, 2010
A utilização de teste de procedência pode fornecer informações sobreo comportamento silvicultural de populações de uma determinada espécie, também permite a estimativa de parâmetros genéticos de características de interesse econômico, seleção de material
Antonio Carlos Scatena ZANATTO   +6 more
doaj  

Cathode for use with low density gases [PDF]

open access: yes, 1972
Method for preventing deterioration of mixed oxide cathodes in low density gas tubes caused by ion bombardment is discussed. Construction of cathode is described and illustration is furnished.
Bennett, W. H.
core   +1 more source

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

open access: yesMolecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero   +8 more
wiley   +1 more source

On geoclimatic variation in basic density of Scots pine wood.

open access: yesSilva Fennica, 1979
The effect of temperature and water supply in the basic density of Scots pine ( L.) wood was studied on the basis of material obtained from the literature.
Kellomäki, Seppo
doaj   +1 more source

5,6-dihydroxyindole-2-carboxylic acid (DHICA): a First Principles Density-Functional Study

open access: yes, 2004
We report first principles density functional calculations for 5,6-dihydroxyindole-2-carboxylic acid (DHICA) and several reduced forms. DHICA and 5,6-dihydroxyindole (DHI) are believed to be the basic building blocks of the eumelanins.
B.J. Powell   +29 more
core   +1 more source

Nicotinamide N‐methyltransferase promotes drug resistance in lung cancer, as revealed by nascent proteomic profiling

open access: yesMolecular Oncology, EarlyView.
AZD9291 has shown promise in targeted cancer therapy but is limited by resistance. In this study, we employed metabolic labeling and LC–MS/MS to profile time‐resolved nascent protein perturbations, allowing dynamic tracking of drug‐responsive proteins. We demonstrated that increased NNMT expression is associated with drug resistance, highlighting NNMT ...
Zhanwu Hou   +5 more
wiley   +1 more source

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