The Diverse Iron Distribution in Eudicotyledoneae Seeds: From Arabidopsis to Quinoa

Seeds accumulate iron during embryo maturation stages of embryogenesis. Using Arabidopsis thaliana as model plant, it has been described that mature embryos accumulate iron within a specific cell layer, the endodermis. This distribution pattern was conserved in most of the analyzed members from Brassicales, with the exception of the basal Vasconcellea pubescens that also showed elevated amounts of iron in cortex cells. To determine whether the V. pubescens iron distribution was indicative of a wider pattern in non-Brassicales Eudicotyledoneae, we studied iron distribution pattern in different embryos belonging to plant species from different Orders from Eudicotyledoneae and one basal from Magnoliidae. The results obtained indicate that iron distribution in A. thaliana embryo is an extreme case of apomorphic character found in Brassicales, not-extensive to the rest of Eudicotyledoneae

Aportes analíticos al estudio de aguas residuales y potables

PublishedEl lector podrá encontrar en el libro las definiciones más importantes en los procesos de validación de métodos analíticos; acceder a la validación de la demanda química de oxígeno y demanda bioquímica de oxígeno para la determinación del contenido de materia orgánica y biodegradabilidad en aguas residuales de un ingenio azucarero. También, encontrará contribuciones a la evaluación de metales pesados (plomo y cadmio) en agua cruda y potable por espectroscopia de absorción atómica con horno de grafito del acueducto del municipio de Cerrito. Así mismo, la validación del método de análisis para nitratos en agua potable del corregimiento Paso de la bolsa del municipio de Jamundí mediante la técnica de espectroscopia ultravioleta. El libro hace énfasis en la importancia de la medición de los parámetros fisicoquímicos en el proceso de potabilización y control de calidad de agua pozo del Paraíso (Santander de Quilichao) utilizada en una planta de tratamiento de agua y en el seguimiento del crecimiento microbiano en una laguna facultativa de un ingenio azucarero del Valle del Cauca

The Caldera. No. 22

“Ten fe ciega no en tu capacidad para el triunfo, sino en el ardor con que lo deseas. Ama a tu arte como a tu novia, dándole todo tu corazón” Horacio Quiroga Los retos de la educación del siglo XXI son cada vez más altos; el perfil de un profesional, en cualquier ámbito, requiere reunir una serie de cualidades, de capacidades, de destrezas y de habilidades, que le permitan, a cada persona, sobresalir entre todos los demás; Unab Creative, es el Centro de Creatividad, Innovación y Emprendimiento, en donde se están gestando toda una serie de propuestas que lleven a nuestros estudiantes, del Instituto Caldas y de la UNAB, a convertirse en esos profesionales que el mundo reclama; así, en nuestras aulas de clase, se despierta la curiosidad de los niños y jóvenes y se les permite, mediante una educación basada en la comprensión, aplicar sus saberes, de las diferentes disciplinas, a nuevas situaciones, a nuevos contextos, de una manera flexible y creativa.Editorial…02 Índice…04 Inner sameness…Identidad; Por: Gisela Afanador Díaz…06 Belouga is at caldas school; Por: Mireya Martinez Silva…10 Perfiles Caldistas; Por María Andrea Puyana…11 Bioweblearns; Por: Mariana Suarez Pacheco, María Camila Cervera Rey …13 Encuentro líderes estudiantiles; Por: Matías Gómez Buitrago, Santiago Pérez Valencia…15 Un profesor inolvidable; Por: Laura Prada Taborda, Gabriela Almeyda Carreño…20 Creatividad en el instituto caldas…28 V Concurso Intercolegiado de Oratoria; Por: Andrés Felipe Galeano Fontecha…29 Expresiones Caldistas…33 La presencia de Joseph Conrad en Horacio Quiroga a partir de la relación entre los cuentos “Los idiotas” y “La gallina degollada”; Por: Profesora Kelly Johanna Palacios…58 Bibliografía…63 Galeria De Imágenes…64Have blind faith not in your ability to succeed, but in the ardor with which you desire it. Love your art as your girlfriend, giving her all your heart ”Horacio Quiroga The challenges of education in the 21st century are increasingly high; The profile of a professional, in any field, requires gathering a series of qualities, capacities, skills and abilities, which allows each person to stand out from all others; Unab Creative is the Center for Creativity, Innovation and Entrepreneurship, where a whole series of proposals are being developed that will lead our students, from the Caldas Institute and UNAB, to become those professionals that the world demands; Thus, in our classrooms, the curiosity of children and young people is awakened and they are allowed, through an education based on understanding, to apply their knowledge, from different disciplines, to new situations, to new contexts, in a way flexible and creative

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

Azimuthal anisotropy of charged jet production in root s(NN)=2.76 TeV Pb-Pb collisions

We present measurements of the azimuthal dependence of charged jet production in central and semi-central root s(NN) = 2.76 TeV Pb-Pb collisions with respect to the second harmonic event plane, quantified as nu(ch)(2) (jet). Jet finding is performed employing the anti-k(T) algorithm with a resolution parameter R = 0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero nu(ch)(2) (jet) is observed in semi-central collisions (30-50% centrality) for 20 <p(T)(ch) (jet) <90 GeV/c. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the nu(2) of single charged particles at high p(T). Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Peer reviewe

Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V.Peer reviewe

Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at root(NN)-N-S=2.76 TeV

Peer reviewe

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

XXV Curso Monográfico de Psiquiatría Infantil y la Adolescencia: Tópicos de Psicofarmacología Infantil - 2023

El XXV Curso Monográfico de Psiquiatría Infantil y de la Adolescencia, titulado "Tópicos de Psicofarmacología Infantil," fue un evento destacado en el campo de la salud mental infantil y adolescente. Durante tres días en septiembre de 2023, expertos líderes en la materia se reunieron para explorar a fondo la psicofarmacología en este grupo de edad. El evento, dedicado a la memoria del Dr. Francisco Javier Valencia Granados, comenzó con una ceremonia de inauguración en la que participaron autoridades institucionales. Luego, se sucedieron conferencias magistrales que abordaron una amplia variedad de temas cruciales. Estos incluyeron aspectos fundamentales como la neurobioquímica farmacológica y una introducción a la psicofarmacología. El programa se adentró en cuestiones específicas, como el uso de antipsicóticos en paidopsiquiatría, el abordaje de trastornos del aprendizaje, el tratamiento del suicidio desde una perspectiva psicofarmacológica, y la gestión farmacológica del insomnio en niños. Se exploraron temas especializados, como el tratamiento de la esquizofrenia en pacientes infantiles. El segundo día se centró en trastornos emocionales en niños y adolescentes, destacando el tratamiento del trastorno depresivo, los trastornos ansiosos y el espectro autista. Se presentaron enfoques vanguardistas, como el uso de psicodélicos en adolescentes y las novedades en psicofarmacología, como el dextrometorfano y el bupropión. También se discutió el manejo de la epilepsia y la adicción a los videojuegos. El tercer día se enfocó en el tratamiento farmacológico de trastornos pediátricos específicos, como el trastorno bipolar, el déficit de atención e hiperactividad, la enuresis y encopresis, parasomnias, y el abordaje neuropsiquiátrico en pacientes pediátricos con VIH. Se exploraron también trastornos de la conducta alimentaria y la disforia de género. El evento culminó con una reflexión sobre la salud mental en niños y un emotivo tributo al Dr. Francisco Javier