Higher-order linking forms for knots

We construct examples of knots that have isomorphic nth-order Alexander modules, but non-isomorphic nth-order linking forms, showing that the linking forms provide more information than the modules alone. This generalizes work of Trotter, who found examples of knots that have isomorphic classical Alexander modules, but non-isomorphic classical Blanchfield linking forms.Comment: 22 pages, 2 figure

Methods used in cross-culturalcomparisons of vasomotor symptoms and their determinants

Methodological differences among studies of vasomotor symptoms limit rigorous comparison or systematic review. Vasomotor symptoms generally include hot flushes and night sweats although other associated symptoms exist. Prevalence rates vary between and within populations, but different studies collect data on frequency, bothersomeness, and/or severity using different outcome measures and scales, making comparisons difficult. We reviewed only cross-cultural studies of menopausal symptoms that explicitly examined symptoms in general populations of women in different countries or different ethnic groups in the same country. This resulted in the inclusion of nine studies: Australian/Japanese Midlife Women's Health Study (AJMWHS), Decisions At Menopause Study (DAMeS), Four Major Ethnic Groups (FMEG), Hilo Women's Health Survey (HWHS), Mid-Aged Health in Women from the Indian Subcontinent (MAHWIS), Penn Ovarian Aging Study (POAS), Study of Women's Health Across the Nation (SWAN), Women's Health in Midlife National Study (WHiMNS), and Women's International Study of Health and Sexuality (WISHeS). These studies highlight the methodological challenges involved in conducting multi-population studies, particularly when languages differ, but also highlight the importance of performing multivariate and factor analyses. Significant cultural differences in one or more vasomotor symptoms were observed in 8 of 9 studies, and symptoms were influenced by the following determinants: menopausal status, hormones (and variance), age (or actually, the square of age, age2), BMI, depression, anxiety, poor physical health, perceived stress, lifestyle factors (hormone therapy use, smoking and exposure to passive smoke), and acculturation (in immigrant populations). Recommendations are made to improve methodological rigor and facilitate comparisons in future cross-cultural menopause studies

Estudio de gráficos estadísticos usados en una muestra de libros de matemáticas para la educación básica y media en Bogotá

A continuación se expone un ejemplo del estudio de los gráficos estadísticos que aparecen en una muestra de 5 libros de matemáticas, diseñados para la enseñanza en la educación básica y media y publicados en los últimos 50 años en Bogotá. Inicialmente con 1.013 libros revisados y mediante criterios de reducción, organización y sistematización de la información, nos brinda una muestra significativa por décadas de 5 libros. Con relación a los gráficos de la muestra de libros, se elaboró un contraste de características (relacionadas con la estructura y contenido disciplinar) con los constructos estadísticos de alfabetización, razonamiento o desarrollo del pensamiento estadístico, según las interpretaciones teóricas entre las características de los gráficos y los constructos. De lo anterior se concluye acerca de: inclusión de la educación estadística, los gráficos y conocimiento disciplinar observado en dicho ejemplo

L^2-Betti numbers of hypersurface complements

In \cite{DJL07} it was shown that if \scra is an affine hyperplane arrangement in \C^n, then at most one of the $L^2$--Betti numbers b_i^{(2)}(\C^n\sm \scra,\id) is non--zero. In this note we prove an analogous statement for complements of complex affine hyperurfaces in general position at infinity. Furthermore, we recast and extend to this higher-dimensional setting results of \cite{FLM,LM06} about $L^2$--Betti numbers of plane curve complements.Comment: 10 pages; comments are very welcome; v2: minor clarifications added in the tex

Overview of methods used in cross-culturalcomparisons of menopausal symptoms and their determinants: Guidelines for Strengthening the Reporting of Menopause and Aging (STROMA) studies

This paper reviews the methods used in cross-cultural studies of menopausal symptoms with the goal of formulating recommendations to facilitate comparisons of menopausal symptoms across cultures. It provides an overview of existing approaches and serves to introduce four separate reviews of vasomotor, psychological, somatic, and sexual symptoms at midlife. Building on an earlier review of cross-cultural studies of menopause covering time periods until 2004, these reviews are based on searches of Medline, PsycINFO, CINAHL and Google Scholar for English-language articles published from 2004 to 2010 using the terms “cross cultural comparison” and “menopause.” Two major criteria were used: a study had to include more than one culture, country, or ethnic group and to have asked about actual menopausal symptom experience. We found considerable variation across studies in age ranges, symptom lists, reference period for symptom recall, variables included in multivariate analyses, and the measurement of factors (e.g., menopausal status and hormonal factors, demographic, anthropometric, mental/physical health, and lifestyle measures) that influence vasomotor, psychological, somatic and sexual symptoms. Based on these reviews, we make recommendations for future research regarding age range, symptom lists, reference/recall periods, and measurement of menopausal status. Recommendations specific to the cross-cultural study of vasomotor, psychological, somatic, and sexual symptoms are found in the four reviews that follow this introduction

Reconstruction of the accusatory system in the colombian military and police criminal justice system from 2005 to 2017

63 páginas.Esta investigación tiene como objetivo principal, describir el desarrollo normativo del sistema penal acusatorio en la Jurisdicción Militar y Policial, en los años 2005 al 2017. Se utiliza la metodología cualitativa, con enfoque teórico-analítico y modalidad documental, para explicar la evolución del procedimiento penal militar en la Constitución de 1991, examinar los motivos de expedición de la Ley 1407 de 2010 y reseñar las normas y decretos emitidos para la implementación del sistema acusatorio. Se evidenció la carencia de planeación legislativa y administrativa, al crear un procedimiento sin tener los órganos jurisdiccionales y recursos para su funcionamiento. Se concluye que el sistema penal acusatorio militar, se desarrolló normativamente pero no se ha implementado, conllevando que se aplique el procedimiento de la Ley 522 de 1999 en procesos adelantados por delitos cometidos en vigencia de la Ley 1407 de 2010, afectando el principio de legalidad contenido en el artículo 29 constitucional.Resumen .................................................................................................................................1 Introducción............................................................................................................................3 A. Sistema procesal penal en la jurisdicción penal militar y policial a partir de la expedición de la constitución de 1991 ......................................................................................................7 I. El fuero militar en el Estado social de derecho colombiano .......................................7 II. El proceso penal militar a partir de la Constitución Política de 1991 .......................13 B. Ley 1407 De 2010: Mediante la cual se introduce el sistema acusatorio en la Jurisdicción Penal Militar y Policial.........................................................................................................19 I. Motivos y trámite legislativo para la expedición de la Ley 1407 de 2010................20 II. Estructura de la Ley 1407 de 2010 ............................................................................36 C. Leyes y decretos expedidos para implementar el sistema penal acusatorio en la justicia penal militar y policial..........................................................................................................39 Conclusiones.........................................................................................................................53 Referencias ...........................................................................................................................56The main objective of this research is to describe the normative development of the accusatory penal system in the military and police jurisdiction in the years 2005 to 2017. The qualitative methodology was used, with theoretical analytical approach and documentary form for to explain the evolution of the military penal procedure in the Constitution of 1991, to examine the reasons for issue of the law 1407 of 2010 and to review the rules and issued decrees for implementation of accusatory penal system. There was evidence of lack of legislative and administrative planning by create a procedure without the courts and resources for its operation. It is concluded that the accusatory military penal system to developed normatively but not implemented, it bring to the application of the procedure of the law 522 of 1999 in proceedings brought forward for crimes committed under the law 1407 of 2010, It is affecting the principle of legality contained in Article 29 of the Constitution

La política pública de desplazamiento forzado en Colombia: una visión desde el pensamiento complejo

a ciencia que estudia los cambios de estado de los sistemas o de los fenómenos es la termodinámica. Este texto hace hincapié en la segunda ley de la termodinámica, que expresa la entropía o el grado de desorden de un sistema. La importancia de esta ley radica en que evidencia la irreversibilidad de los cambios de estado y la naturaleza unidireccional de los procesos termodinámicos, al establecer una línea del tiempo. Este paradigma del conocimiento representa para las ciencias sociales y los estudios políticos un reto en cuanto a la interpretación de fenómenos sociales de alta complejidad, como lo puede ser el desplazamiento forzado y su política pública de atención, pues revela un diálogo entre el paradigma clásico de la ciencia y el paradigma de las ciencias de la complejidad creciente