35 research outputs found
La influencia de la responsabilidad social empresarial en el comportamiento de compra de lavadoras de los consumidores residentes en Arequipa
A la fecha, el concepto de responsabilidad social en el Perú tiene una mayor
relevancia, a pesar de ello, en la ciudad de Arequipa aún no existen investigaciones
que establezcan, a nivel empírico, si existe una relación entre la intención de compra
de los consumidores residentes en Arequipa y la responsabilidad social empresarial.
La presente investigación tratará de establecer si existe relación entre la
responsabilidad social empresarial y el comportamiento de compra de los peruanos,
en la ciudad de Arequipa. Esta investigación se basa en la metodología de los modelos
de elección discreta, que permite medir la intención de compra de lavadoras y si los
consumidores están dispuestos a pagar por las actividades de responsabilidad social
llevadas a cabo por las empresas. El experimento se realizó utilizando una muestra
aleatoria estratificada de 132 consumidores residentes en Arequipa. La investigación
brinda evidencia empírica de la relación positiva existente entre la responsabilidad
social empresarial y el comportamiento de compra de la muestra. Los resultados del
estudio indican que el efecto de la responsabilidad social empresarial en su conjunto
es superior al de las competencias corporativas.
Esta tesis es una ampliación del alcance de la investigación doctoral de Percy
Samoel Marquina Feldman, cuyo título es La Influencia de la Responsabilidad Social
Empresarial en el Comportamiento de Compra de los Consumidores Peruanos
(CENTRUM, Centro de Negocios de la Pontificia Universidad Católica del Perú.
Lima 2009). Esta tesis de Maestría busca validar si la relación identificada
originalmente por el investigador Marquina, también se presenta en la categoría de
lavadoras, tal como los autores lo sugieren en sus recomendaciones finales. Con la
autorización del autor, se han utilizado partes de su tesis, particularmente las que se
refieren a la revisión de la literatura y al método.Corporate social responsibility has greater international relevance at the
national context. Despite this, in Arequipa, there are no empirical studies to determine
its impact on the consumer. This research seeks to determine the influence that
corporate social responsibility has on purchasing behavior of washing machines in
Arequipa. An experiment was developed under the methodology of discrete choice
models in order to quantify the purchase intention and willingness to pay for social
responsibility actions developed by the companies. The experiment was carried out
using a random sample of 132 Arequipa’s consumers. The research provides
empirical evidence of the positive relationship between corporate social responsibility
and purchase behavior of the sample washing machines. However, the study results
indicate that the effect of corporate social responsibility as a whole is lower than
corporate competencies.
This thesis is an extension of the scope of the doctoral research of Percy
Samoel Marquina Feldman, The Influence of Corporate Social Responsibility on
Purchasing Behavior of Peruvian Consumers (CENTRUM, Centro de Negocios de la
Pontificia Universidad Católica del Perú. Lima 2009). This master thesis seeks to
validate whether the relationship originally identified by Marquina also comes in the
category of washing machines, as the author suggests in its final recommendations.
With permission of the author, parts of his thesis have used, particularly those relating
to the review of literature and method.Tesi
Experiencias de Innovación docente en los Estudios Jurídicos: una visión práctica
Esta publicación se enmarca dentro de las actividades del Grupo de
Investigación de la Universidad de Extremadura Fiscalitas & Iuris.Este trabajo surge con el objetivo principal de dar visibilidad y publicidad a las nuevas técnicas docentes en el seno de la Facultad de Derecho de la UEx.
Como se sabe, se ha producido un innegable y significativo avance en el uso de nuevas técnicas docentes y también de las TICs aplicadas a la docencia en la Facultad de Derecho, no obstante, aún es necesario profundizar en el uso de las mismas y extenderlas entre todos los miembros del claustro de profesores, y fundamentalmente entre aquellos que llevan más años ejerciendo la docencia a través de la colaboración y la coordinación con los profesores noveles, que son quienes principalmente se sirven en mayor medida de tales instrumentos docentes.
De otra parte, también era necesario que los docentes más experimentados pudieran encontrar un foro en el que transmitir y compartir con los noveles cuales son las técnicas e instrumentos docentes que ellos han venido utilizando durante el ejercicio de su magisterio, de modo que, en el marco de una relación sinalagmática, se produjera una interacción entre uno u otro grupo de docentes, a fin de fomentar el necesario debate y el intercambio de experiencias e instrumentos docentes, y en su caso el desarrollo y perfeccionamiento de los mismos; algo que hemos pretendido realizar con este trabajo, y que en buena medida hemos logrado.
Las finalidades y objetivos concretos que perseguíamos, en atención a la situación expuesta eran fundamentalmente tres:
• En primer lugar, la implementación de un proyecto de innovación docente integrado por una diversidad de actividades coordinadas, cada uno de ellas bajo la directa coordinación de un profesor o profesora de la UEx, aplicado a una o varias asignaturas impartidas en la Facultad de Derecho.
• En segundo lugar, el establecimiento en la Facultad de Derecho de un foro de coordinación e intercambio de buenas prácticas docentes sobre la base de cada uno de las actividades coordinadas, en el que pudieran participar profesores noveles y veteranos. Para ello se desarrolló espacio virtual de innovación docente en estudios jurídicos, a través del Campus Virtual de la UEx, en el que los Profesores noveles y veteranos pudieron y puede compartir recursos e informaciones sobre prácticas de innovación.
• Y, en tercer lugar, la difusión y consolidación de instrumentos de innovación docente directamente aplicadas a la docencia de los estudios jurídicos, mediante la transferencia de los resultados y la publicación de los mismos; a fin de que esta transferencia sirva de base a futuras profundizaciones en el campo de la innovación docente en los estudios jurídicos.Proyecto “Desarrollo, profundización e intercambio de buenas prácticas de innovación docente en la Facultad de Derecho” (UEx 2015-2016
Full-Exon Pyrosequencing Screening of BRCA Germline Mutations in Mexican Women with Inherited Breast and Ovarian Cancer
Hereditary breast cancer comprises 10% of all breast cancers. The most prevalent genes causing this pathology are BRCA1 and BRCA2 (breast cancer early onset 1 and 2), which also predispose to other cancers. Despite the outstanding relevance of genetic screening of BRCA deleterious variants in patients with a history of familial cancer, this practice is not common in Latin American public institutions. In this work we assessed mutations in the entire exonic and splice-site regions of BRCA in 39 patients with breast and ovarian cancer and with familial history of breast cancer or with clinical features suggestive for BRCA mutations by massive parallel pyrosequencing. First we evaluated the method with controls and found 41–485 reads per sequence in BRCA pathogenic mutations. Negative controls did not show deleterious variants, confirming the suitability of the approach. In patients diagnosed with cancer we found 4 novel deleterious mutations (c.2805_2808delAGAT and c.3124_3133delAGCAATATTA in BRCA1; c.2639_2640delTG and c.5114_5117delTAAA in BRCA2). The prevalence of BRCA mutations in these patients was 10.2%. Moreover, we discovered 16 variants with unknown clinical significance (11 in exons and 5 in introns); 4 were predicted as possibly pathogenic by in silico analyses, and 3 have not been described previously. This study illustrates how massive pyrosequencing technology can be applied to screen for BRCA mutations in the whole exonic and splice regions in patients with suspected BRCA-related cancers. This is the first effort to analyse the mutational status of BRCA genes on a Mexican-mestizo population by means of pyrosequencing
Lo glocal y el turismo. Nuevos paradigmas de interpretación.
El estudio del turismo se realiza desde múltiples escalas y enfoques, este libro aborda muchos temas que es necesario discutir desde diversas perspectivas; es el caso de la reflexión sobre la propia disciplina y sus conceptos, así como los asuntos específicos referidos al impacto territorial, los tipos de turismo, las cuestiones ambientales, el tema de la pobreza, la competitividad, las políticas públicas, el papel de las universidades, las áreas naturales protegidas, la sustentabilidad, la cultura, el desarrollo, la seguridad, todos temas centrales documentados y expuestos con originalidad y dominio del asunto. Lo multiescalar es básico para la comprensión del sistema turístico, sistema formado de procesos globales, regionales y locales. El eje de discusión del libro es lo glocal, esa interacción entre lo nacional y local con lo global
Natural History of MYH7-Related Dilated Cardiomyopathy
BACKGROUND Variants in myosin heavy chain 7 (MYH7) are responsible for disease in 1% to 5% of patients with dilated cardiomyopathy (DCM); however, the clinical characteristics and natural history of MYH7-related DCM are poorly described. OBJECTIVES We sought to determine the phenotype and prognosis of MYH7-related DCM. We also evaluated the influence of variant location on phenotypic expression. METHODS We studied clinical data from 147 individuals with DCM-causing MYH7 variants (47.6% female; 35.6 +/- 19.2 years) recruited from 29 international centers. RESULTS At initial evaluation, 106 (72.1%) patients had DCM (left ventricular ejection fraction: 34.5% +/- 11.7%). Median follow-up was 4.5 years (IQR: 1.7-8.0 years), and 23.7% of carriers who were initially phenotype-negative developed DCM. Phenotypic expression by 40 and 60 years was 46% and 88%, respectively, with 18 patients (16%) first diagnosed at <18 years of age. Thirty-six percent of patients with DCM met imaging criteria for LV noncompaction. During follow-up, 28% showed left ventricular reverse remodeling. Incidence of adverse cardiac events among patients with DCM at 5 years was 11.6%, with 5 (4.6%) deaths caused by end-stage heart failure (ESHF) and 5 patients (4.6%) requiring heart transplantation. The major ventricular arrhythmia rate was low (1.0% and 2.1% at 5 years in patients with DCM and in those with LVEF of <= 35%, respectively). ESHF and major ventricular arrhythmia were significantly lower compared with LMNA-related DCM and similar to DCM caused by TTN truncating variants. CONCLUSIONS MYH7-related DCM is characterized by early age of onset, high phenotypic expression, low left ventricular reverse remodeling, and frequent progression to ESHF. Heart failure complications predominate over ventricular arrhythmias, which are rare. (C) 2022 The Authors. Published by Elsevier on behalf of the American College of Cardiology Foundation
Association Between Preexisting Versus Newly Identified Atrial Fibrillation and Outcomes of Patients With Acute Pulmonary Embolism
Background Atrial fibrillation (AF) may exist before or occur early in the course of pulmonary embolism (PE). We determined the PE outcomes based on the presence and timing of AF. Methods and Results Using the data from a multicenter PE registry, we identified 3 groups: (1) those with preexisting AF, (2) patients with new AF within 2 days from acute PE (incident AF), and (3) patients without AF. We assessed the 90-day and 1-year risk of mortality and stroke in patients with AF, compared with those without AF (reference group). Among 16 497 patients with PE, 792 had preexisting AF. These patients had increased odds of 90-day all-cause (odds ratio [OR], 2.81; 95% CI, 2.33-3.38) and PE-related mortality (OR, 2.38; 95% CI, 1.37-4.14) and increased 1-year hazard for ischemic stroke (hazard ratio, 5.48; 95% CI, 3.10-9.69) compared with those without AF. After multivariable adjustment, preexisting AF was associated with significantly increased odds of all-cause mortality (OR, 1.91; 95% CI, 1.57-2.32) but not PE-related mortality (OR, 1.50; 95% CI, 0.85-2.66). Among 16 497 patients with PE, 445 developed new incident AF within 2 days of acute PE. Incident AF was associated with increased odds of 90-day all-cause (OR, 2.28; 95% CI, 1.75-2.97) and PE-related (OR, 3.64; 95% CI, 2.01-6.59) mortality but not stroke. Findings were similar in multivariable analyses. Conclusions In patients with acute symptomatic PE, both preexisting AF and incident AF predict adverse clinical outcomes. The type of adverse outcomes may differ depending on the timing of AF onset.info:eu-repo/semantics/publishedVersio
Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)
Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters.
Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs).
Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001).
Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio
Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2
The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality
Pervasive gaps in Amazonian ecological research
Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4
While the increasing availability of global databases on ecological communities has advanced our knowledge
of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In
the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of
Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus
crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced
environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian
Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by
2050. This means that unless we take immediate action, we will not be able to establish their current status,
much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio