Results 111 to 120 of about 4,771,637 (376)

Measuring Security Price Performance Using Chilean Daily Stock Returns: The Event Study Method [PDF]

open access: yes
Following the Brown-Warner simulation approach and using Chilean daily security returns data, we examine the specification and power of three parametric t-tests commonly used in event-studies: the standardized, the cross-sectional and the porfolio t-test.
Eduardo Sandoval, Rodrigo Saens
core  

Comparison between cone-beam and multislice computed tomography for identification of simulated bone lesions [PDF]

open access: yes, 2011
There are many studies that compare the accuracy of multislice (MSCT) and cone beam (CBCT) computed tomography for evaluations in the maxillofacial region.
CAVALCANTI, Marcelo Gusmão Paraíso   +4 more
core   +2 more sources

Detecting homologous recombination deficiency for breast cancer through integrative analysis of genomic data

open access: yesMolecular Oncology, EarlyView.
This study develops a semi‐supervised classifier integrating multi‐genomic data (1404 training/5893 validation samples) to improve homologous recombination deficiency (HRD) detection in breast cancer. Our method demonstrates prognostic value and predicts chemotherapy/PARP inhibitor sensitivity in HRD+ tumours.
Rong Zhu   +12 more
wiley   +1 more source

Perceived barriers by university students in relation the leisure-time physical activity. http://dx.doi.org/10.5007/1980-0037.2013v15n2p164

open access: yesRevista Brasileira de Cineantropometria e Desempenho Humano, 2013
To estimate the prevalence and socio-demographic indicators and program affiliation associated with the perceived barriers for physical activity practice; and, to analyze the association between the perceived barriers with leisure-time physical ...
Thiago Ferreira de Sousa   +2 more
doaj  

An Economic Analysis of Voting in Sweden [PDF]

open access: yes
Using data from the Swedish Election Studies between 1985 and 1994 supplemented with time series on inflation and unemployment, I compare the impact of macro- and microeconomic variables on the individual vote. The principal finding is that microeconomic
Jordahl, Henrik
core  

Data‐driven discovery of gene expression markers distinguishing pediatric acute lymphoblastic leukemia subtypes

open access: yesMolecular Oncology, EarlyView.
This study investigates gene expression differences between two major pediatric acute lymphoblastic leukemia (ALL) subtypes, B‐cell precursor ALL, and T‐cell ALL, using a data‐driven approach consisting of biostatistics and machine learning methods. Following analysis of a discovery dataset, we find a set of 14 expression markers differentiating the ...
Mona Nourbakhsh   +8 more
wiley   +1 more source

Osteoarthritis, entheses, and long bone cross-sectional geometry in the Andes: Usage, history, and future directions. [PDF]

open access: yes, 2019
Akin to approaches encouraged by Verano (1997) in the Andes, and Ortner (2011, 2012) for general paleopathological studies, this article focuses on accurate descriptions and definitions of osteoarthritis, entheses, and long bone cross-sectional geometry.
Becker, Sara K
core   +1 more source

TRPM8 levels determine tumor vulnerability to channel agonists

open access: yesMolecular Oncology, EarlyView.
TRPM8 is a Ca2+ permissive channel. Regardless of the amount of its transcript, high levels of TRPM8 protein mark different tumors, including prostate, breast, colorectal, and lung carcinomas. Targeting TRPM8 with channel agonists stimulates inward calcium currents followed by emptying of cytosolic Ca2+ stores in cancer cells.
Alessandro Alaimo   +18 more
wiley   +1 more source

Prevalência da maloclusão e necessidade de tratamento ortodôntico em escolares de 10 a 14 anos de idade em Belo Horizonte, Minas Gerais, Brasil: enfoque psicossocial

open access: yesCadernos de Saúde Pública
Os objetivos deste estudo transversal foram determinar a prevalência da maloclusão e verificar a associação entre necessidade normativa de tratamento ortodôntico e determinados aspectos psicossociais.
Leandro Silva Marques   +4 more
doaj  

Differential mortality and wealth accumulation [PDF]

open access: yes
An issue central to the life-cycle theory of consumer behavior, and to many policy questions, is asset accumulation and decumulation. One of the main implications of the life-cycle model is that assets are decumulated in the last part of life.
H. W. Hoynes, O. Attanasio
core  

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