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Variations for Some Painlevé Equations
(SIGMA, 2019)
This paper rst discusses irreducibility of a Painlev e equation P. We explain
how the Painlev e property is helpful for the computation of special classical and algebraic
solutions. As in a paper of Morales-Ruiz we associate an autonomous Hamiltonian H to
a Painlev e equation P. Complete integrability of H is shown to imply that all solutions
to P are classical (which includes algebraic), so in particular P is solvable by \quadratures".
Next, we show that the variational equation of P at a given algebraic solution coincides
with the normal ...
El control de convencionalidad y el diálogo judicial frente al medio ambiente como sujeto de protección y reparación
(Universidad Nacional Autónoma de México, 2019-07)
El presente artículo tiene por objeto
el control de convencionalidad y su ejercicio
por los jueces administrativos, pretendiendo
en este caso efectuar un análisis del control
de convencionalidad y la doctrina conocida
como diálogo interjurisdiccional que propenda
por una concepción de mayor garantía del
medio ambiente como sujeto de protección
y reparación. Para ello, se utilizó un marco
metodológico de carácter cualitativo con la
técnica de análisis de discurso —de carácter
jurisprudencial— sobre múltiples providencias
de altas cortes ...
Second Generation Antipsychotics (SGAs) in Schizophrenic Patients and Bipolar Disorder: Correlation With Metabolic Syndrome (NCEP ATP III(a))
(Canadian Center of Science and Education, 2019)
Introduction: The Metabolic Syndrome is a set of diverse clinical situations such as diabetes mellitus,
hypertension and dyslipidemia. Patients with mental illnesses such as schizophrenia or bipolar disorder have a
higher mortality than the general population attributable in 60% to somatic diseases and metabolic syndrome,
where second generation antipsychotics increase the risk of weight gain and insulin resistance. Objectives.
Correlate the treatment with second generation antipsychotics (SGAs) as a possible predictor for Metabolic
Syndrome ...
Reconstrucción 3-D del Ventrículo Izquierdo de Corazón Humano a partir de Angiocardiografía Rotacional por Rayos X Usando Conectores Difusos
(Latin American and Caribbean Consortium of Engineering Institutions, LACCEI, 2019-07)
En este trabajo, se propone un método de
reconstrucción tri-dimensional aproximada del ventrículo
izquierdo de corazón humano. El método realiza la reconstrucción
a partir de la información asociada a los niveles de gris y considera
la geometría de proyección perspectiva expresada por el modelo
pin-hole. El método está inspirado en la etapa de aproximación
utilizada por los enfoques difuso y probatorio. La reconstrucción
tridimensional se realiza combinando la retroproyección de cada
una de las proyecciones de la cavidad en la misma fase ...
Dynamic Effects of CYP2D6 Genetic Variants in a Set of Poor Metaboliser Patients with Infiltrating Ductal Cancer Under Treatment with Tamoxifen
(Springer, 2019-02-21)
Breast cancer is a group of multigenic diseases. It is the most common cancer diagnosed among women worldwide and is often treated with tamoxifen. Tamoxifen is catalysed by cytochrome P450 2D6 (CYP2D6), and inter-individual variations in the enzyme due to single nucleotide polymorphisms (SNPs) could alter enzyme activity. We evaluated SNPs in patients from Colombia in South America who were receiving tamoxifen treatment for breast cancer. Allelic diversity in the CYP2D6 gene was found in the studied population, with two patients displaying the ...
School Dropout of Adolescent Mothers in a Colombian-Venezuelan Border
(University of Verona, 2019)
The objective of this study was to compare school dropout of adolescent mothers in the Venezuelan-Colombian border, between the Táchira State and the North of Santander Department. The factors considered by the analysis were the age when leaving their studies, the educational level and the school performance before the desertion for determining the requirements conducive to social development. Thus, using a quantitative methodology, the study handles two samples: 235 adolescent mothers in Táchira State and 406 mothers in the North of Santander ...
Privacy perception in location-based services for mobile devices in the university community of the north coast of Colombia
(Pontificia Universidad Javeriana, 2019)
Introduction: The use of mobile applications has increased in the last years. Most of them require the knowledge of the user location, either for their core service or for marketing purposes. Location-based services (LBS) offer context-based assistance to users based on their location. Although these applications ask the user for permission to use their location and even explain in detail how this information will be used in its terms and conditions, most users are not aware or even interested in the fact that their location information is stored ...
An automatic technique for left ventricle segmentation from msct cardiac volumes
(IOP Publishing, 2019)
In this research, an automatic technique to segment the left ventricle from the heart
information in multislice computed tomography images is proposed. A preprocessing stage is
considered as a necessary preliminary task for diminishing the artifacts impact in the image
analysis. With this idea, a similarity enhancement that combines a smoothed version of the
original volume with a processed volume using mathematical morphology is used. This
preprocessing approach is compared with respect to other strategies. After, a volume-of-interest
is ...
Integrating a gradient–based difference operator with machine learning techniques in right heart segmentation
(IOP Publishing, 2019)
In this research a three step method for right heart segmentation based on a gradient–
based difference operator and machine learning techniques is reported. The proposed method is
applied to human heart multi–slice computerized tomography (MSCT) volumes. The first step
is the preprocessing, where a gradient–based difference operator is applied to exploit the
functional relationship between the original input image and its edge enhanced version. In the
second step, the least squares support vector machines (LSSVM) are used with a double ...
Isotropic versus anisotropic techniques in cardiac computed tomography images processing
(IOP Publishing, 2019)
The objective of the work is to compare the performance of two filters, one isotropic
and another one of anisotropic diffusion based on gradient. To do this, experiments are carried
out to establish which of the filters exhibits a better behavior against the imperfections that
characterize the computed tomography images. The structure of the experiments is as follows:
a) The parameters linked to the aforementioned filters are identified. b) The ranges of valuesof
these parameters and the way to use them are established. c) A database of ...