Search results for "Correlation"

Time-varying conditional correlation : effect on international portfolio diversification in Southeast Asia

2017

Tämä tutkimus tarkastelee USA:n ja valittujen Kaakkois-Aasian kehittyvien maiden markkinoita; Philippiinejä, Indonesiaa, Malesiaa ja Thaimaata. Tutkimus antaa tuloksia sekä USA:n että indonesialaisen sijoittajan näkökulmasta. Merkittävä rooli tutkimuksessa on ajassa muuttuvan korrelaation havainnollistamisessa osakeindeksien välillä käyttäen apuna Englen vuonna 2002 esittelemää DCC-GARCH mallia. Tutkimuksessa käytetty data on vuodesta 1988 vuoteen 2015 saakka. Tulokset paljastavat kuinka valittujen osakemarkkinoiden välinen korrelaatio on muuttunut kolmen kriisin - Aasian kriisin, teknologiakuplan ja globaali talouskriisin - myötä ja onko muutos ollut pysyvää vai ei. Lisäksi tutkimuksessa t…

Tomografía computarizada a nivel de C3 y dinamometría como técnicas de diagnóstico de sarcopenia en pacientes con cáncer de cabeza y cuello

2020

Introducción: Estudio piloto que determina el diagnóstico de sarcopenia mediante tomografía computarizada (TC) a nivel de la tercera vértebra cervical (C3) y dinamometría en pacientes con cáncer de cabeza y cuello. Comparación de la masa magra (MM) determinada mediante TC con técnicas clásicas de antropometría y dinamometría.Material y métodos: Se analizó la MM y el tejido adiposo mediante TC a nivel de C3 en 37 pacientes oncológicos mediante Unidades Hounsfield (UH). Posteriormente, se calculó el índice musculoesquelético (IME) y se determinó la fuerza prensora de mano para la determinación de sarcopenia. Por último, se comparó el IME mediante técnicas de valoración antropométrica clásica …

2004

This paper presents the use of Support Vector Machines (SVMs) for prediction and analysis of antisense oligonucleotide (AO) efficacy. The collected database comprises 315 AO molecules including 68 features each, inducing a problem well-suited to SVMs. The task of feature selection is crucial given the presence of noisy or redundant features, and the well-known problem of the curse of dimensionality. We propose a two-stage strategy to develop an optimal model: (1) feature selection using correlation analysis, mutual information, and SVM-based recursive feature elimination (SVM-RFE), and (2) AO prediction using standard and profiled SVM formulations. A profiled SVM gives different weights to …

Response: platelet transcriptome and proteome—relation rather than correlation

2013

We have demonstrated by a detailed statistical analysis of proteome and transcriptome data of human platelets and human cell lines that protein and transcript abundance in platelets, if at all, are only weakly correlated.[1][1] This analysis appears to be in contradiction to previous claims made

Cathepsin D Content in Colorectal Cancer

1995

Cathepsin D content and activity were determined in matched paired sets of colorectal tumor tissue and normal mucosa and correlated with a number of biological and clinical parameters. Significantly higher cathepsin D activity was measured in tumor cytosol compared to paired normal mucosa (p < 0.02), in Dukes’ stage A tumors compared to Dukes’ B and C (p < 0.05), in tumors < 5 cm compared to those > 5 cm, or in tumors with a low proliferation rate compared to those with a high proliferation rate (p < 0.05). Moreover, significant differences in enzyme activity between tumor tissue and paired normal mucosa were observed in node-positive and G2 tumors (p < 0.05). No significa…

Genetic Variants Associated With Human Eye Size Are Distinct From Those Conferring Susceptibility to Myopia

2021

Purpose: Emmetropization requires coordinated scaling of the major ocular components, corneal curvature and axial length. This coordination is achieved in part through a shared set of genetic variants that regulate eye size. Poorly coordinated scaling of corneal curvature and axial length results in refractive error. We tested the hypothesis that genetic variants regulating eye size in emmetropic eyes are distinct from those conferring susceptibility to refractive error. Methods: A genome-wide association study (GWAS) for corneal curvature in 22,180 adult emmetropic individuals was performed as a proxy for a GWAS for eye size. A polygenic score created using lead GWAS variants was tested fo…

Fusulines from the Central Asturian Coalfield (Pennsylvanian, Cantabrian Zone, Spain) and their significance for correlation.

2018

Factors Differentiating Rural and Urban Population in Determining Anxiety and Depression in Patients with Chronic Cardiovascular Disease: A Pilot Stu…

2021

The aim of this cross-sectional study was to analyze selected variables differentiating rural from urban populations, as well as identify potentially increased levels of depression and anxiety in patients with chronic cardiovascular disease. The study was carried out in 193 patients. The study used the Camberwell Assessment of Need Short Appraisal Schedule (CANSAS), the Health Behavior Inventory Questionnaire (HBI), the WHOQOL-BREF Quality of Life Questionnaire, and the Hospital Anxiety and Depression Scale–Modified Version (HADS-M). Spearman’s rank correlation coefficient test and logistic regression were used for analyses. In rural patients, we observed a relationship between anxiety and …

"Table 98" of "Measurement of the distributions of event-by-event flow harmonics in lead--lead collisions at sqrt(s_NN)=2.76 TeV with the ATLAS detec…

2014

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"Table 152" of "Measurement of the distributions of event-by-event flow harmonics in lead--lead collisions at sqrt(s_NN)=2.76 TeV with the ATLAS dete…

2014

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