Results 91 to 100 of about 10,561,922 (303)

A Remark on Local Behavior of Characteristic Functions

The Annals of Probability, 1974
It is shown that, if, for a distribution function $F, 1 - F(x) + F(-x)$ varies regularly at $\infty$ with exponent $\alpha, 0 > \alpha > -1$, then $|\operatorname{Im} \phi(t)| = O(I - \operatorname{Re} \phi(t)) (t \rightarrow 0)$, where $\phi$ is the characteristic function of $F$. Versions for $\alpha \leqq -1$ are also given.
openaire   +2 more sources

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Improved uniform ductility in a high-carbon pearlitic steel via microstructural homogeneity architecture

Journal of Materials Research and Technology
In this work, the nucleation and growth kinetics of pearlitic transformation are quantitatively investigated to unveil the distinctive microstructural evolution behavior under a high undercooling degree.
Jiaxun Zhang, Can Meng, Yuxi Mu, Pingwei Xu, Yu Liang   +4 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

The strengthening and ductilization mechanisms of D406A high-strength steel treated by quenching and partitioning process

Materials Research Express
As a low-alloy high-strength steel, D406A steel functions as a crucial structural material for solid rocket motor casings. With the rapid advancement in solid rocket motor technology, conventional quenching and tempering (Q&T) heat-treated D406A steel ...
Weijia Ran, Fei Zhao, Wensen Huang, Yuanbiao Tan, Yonghai Ren, Longxiang Wang   +5 more
doaj   +1 more source

Resistance to change of responding maintained by unsignaled delays to reinforcement: a response-bout analysis.

, 2006
Previous experiments have shown that unsignaled delayed reinforcement decreases response rates and resistance to change. However, the effects of different delays to reinforcement on underlying response structure have not been investigated in conjunction ...
Shahan, Timothy A., Podlesnik, Christopher A., Ward, Ryan D., Jimenez-Gomez, Corina, Ward, RD, Shahan, TA, Podlesnik, Christopher, Jimenez-Gomez, C   +7 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Maternal Health Care Utilization Behavior, Local Wisdom, and Associated Factors Among Women in Urban and Rural Areas, Indonesia

International Journal of Women's Health, 2023
Nyoman Anita Damayanti, Ratna Dwi Wulandari, Ilham Akhsanu Ridlo Department of Health Policy and Administration, Faculty of Public Health, Unversitas Airlangga, Surabaya, IndonesiaCorrespondence: Nyoman Anita Damayanti, Department of Health Policy and ...
Damayanti NA, Wulandari RD, Ridlo IA
doaj  

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

THE LOCAL ORGANIZATION OF BEHAVIOR: DISCRIMINATION OF AND MEMORY FOR SIMPLE BEHAVIORAL PATTERNS [PDF]

Journal of the Experimental Analysis of Behavior, 1981
A procedure was developed to enable nonverbal organisms to report what they remember of the temporal organization of their recent behavior. A baseline behavior with known temporal structure was established by a concurrent variable‐interval variable‐interval schedule for two temporal patterns of behavior (two different classes of reinforced ...
openaire   +2 more sources