Results 131 to 140 of about 1,545,557 (316)

k(0)-INAA for determining chemical elements in bird feathers [PDF]

, 2010
The k(0)-method instrumental neutron activation analysis (k(0)-INAA) was employed for determining chemical elements in bird feathers. A collection was obtained taking into account several bird species from wet ecosystems in diverse regions of Brazil. For
RODRIGUES, Vanessa S., BARDINI JUNIOR, Claudiney, ANTUNES, Alexsander Z., FRANCA, Elvis J., CAVALCA, Isabel P. O., FONSECA, Felipe Y., BACCHI, Marcio A., FERNANDES, Elisabete A. N.   +7 more
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

The role of highly conserved non-coding DNA sequences in vertebrate development and evolution [PDF]

, 2010
PhDComparisons between vertebrate genome sequences, from mammals to fishes, have revealed thousands of conserved non-coding elements (CNEs) that are associated with developmental genes.
Parker, Hugo
core  

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

The 3D version of the finite element program FESTER [PDF]

, 1992
In this report, a detailed description of the 3-D version finite element pro-gram FESTER is given. This includes: 1. A brief introduction to the package FESTER; 2. Preparing an input data file for the 3D version of FESTER; 3.
Qu, R, Reed, M B
core  

Convergent evolution of noncoding elements associated with short tarsus length in birds

BMC Biology
Background Convergent evolution is the independent evolution of similar traits in unrelated lineages across the Tree of Life. Various genomic signatures can help identify cases of convergent evolution at the molecular level, including changes in ...
Subir B. Shakya, Scott V. Edwards, Timothy B. Sackton   +2 more
doaj   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Characterizing heterogeneous cis-regulatory elements in gene regulatory programs associated with breast cancer

Genome Medicine
Background Cis-regulatory elements (CREs) control oncogene expression and malignant phenotypes. The high clinicopathological heterogeneity of cancer cannot be explained by gene expression alone, being attributed to CRE heterogeneity.
Chisa Hori, Kohei Kumegawa, Sumito Saeki, Yoko Takahashi, Liying Yang, Tomoyoshi Nakadai, Kazutaka Otsuji, Chikako Takahata, Yukinori Ozaki, Natsue Uehiro, Yurie Haruyama, Tomo Osako, Toshimi Takano, Seiichi Mori, Tetsuo Noda, Satoshi Fujii, Shinji Ohno, Takayuki Ueno, Reo Maruyama   +18 more
doaj   +1 more source

Jordan elements in a free associative algebra, I

Journal of Algebra, 1971
AbstractLet A be a free associative algebra on a set X. The elements of the Lie subalgebra of A generated by X are called Lie elements and the elements of the Jordan subalgebra of A generated by 1 and X are called Jordan elements. The criteria of Specht-Wever and of Friedrichs enable one to determine whether an element of A is a Lie element.
openaire   +2 more sources

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source