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artículo
Publicado 2006
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This issue of Annales Geophysicae contains selected papers from the 11th International Symposium on Equatorial Aeronomy (ISEA-11) and the Climate and Weather of the Sun-Earth System (CAWSES) Mini-Workshop. ISEA-11 and the CAWSES Mini-Workshop were hosted by the Institute of Space Science at National Central University and were held at the Civil Servant’s Training Center in Taipei, Taiwan from 9–14 May 2005.
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revisión
Depression associated with stroke affects roughly one-third of stroke survivors. Post-stroke depression (PSD) is thought to adversely influence functional outcome by limiting participation in rehabilitation, decreasing physical, social, and cognitive function, and affecting neuroplasticity thereby placing stroke survivors at high risk for future vascular events. PSD has also been associated with higher mortality rates after stroke. In Peru, a country where there is no national stroke program and mental health disorders are largely underdiagnosed and untreated, people with PSD are likely to be further challenged by dependency and impoverished conditions that will limit their use of ambulatory services, leading to inadequate clinical follow-up. In this scenario, mobile health (mHealth) technology offers a promising approach to extend access to high-quality and culturally tailored evidence-...
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artículo
Publicado 2019
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Increases in the prevalence of noncommunicable diseases (NCDs), particularly cardiometabolic diseases such as cardiovascular disease, stroke and diabetes, and their major risk factors have not been uniform across settings: for example, cardiovascular disease mortality has declined over recent decades in high-income countries but increased in low- and middle-income countries (LMICs). The factors contributing to this rise are varied and are influenced by environmental, social, political and commercial determinants of health, among other factors. This Review focuses on understanding the rise of cardiometabolic diseases in LMICs, with particular emphasis on obesity and its drivers, together with broader environmental and macro determinants of health, as well as LMIC-based responses to counteract cardiometabolic diseases. © 2019, Springer Nature America, Inc.
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artículo
Publicado 2020
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Background Describing the prevalence and trends of cardiometabolic risk factors that are associated with noncommunicable diseases (NCDs) is crucial for monitoring progress, planning prevention, and providing evidence to support policy efforts. We aimed to analyse the transition in body-mass index (BMI), obesity, blood pressure, raised blood pressure, and diabetes in the Americas, between 1980 and 2014. Methods We did a pooled analysis of population-based studies with data on anthropometric measurements, biomarkers for diabetes, and blood pressure from adults aged 18 years or older. A Bayesian model was used to estimate trends in BMI, raised blood pressure (systolic blood pressure =140 mm Hg or diastolic blood pressure =90 mm Hg), and diabetes (fasting plasma glucose =7.0 mmol/L, history of diabetes, or diabetes treatment) from 1980 to 2014, in 37 countries and six subregions of the Ameri...
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revisión
Publicado 2017
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Stroke is a major cause of death and disability, with most of its burden now affecting low- and middle-income countries (LMIC). People in rural areas of LMIC who have a stroke receive very little acute stroke care and local healthcare workers and family caregivers in these regions lack the necessary knowledge to assist them. Intriguingly, a recent rapid growth in cell-phone use and digital technology in rural areas has not yet been appropriately exploited for health care training and delivery purposes. What should be done in rural areas, at the community setting-level, where access to healthcare is limited remains a challenge. We review the evidence on improving post-stroke outcomes including lowering the risks of functional disability, stroke recurrence, and mortality, and propose some approaches, to target post-stroke care and rehabilitation, noting key challenges in designing suitable...
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artículo
Publicado 2016
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Universidad Nacional Agraria La Molina. Escuela de Posgrado. Doctorado en Ciencia Animal
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artículo
RESUMEN La adolescencia es un período de la vida con intensos cambios físicos, psíquicos y sociales, que convierten al niño en adulto y le capacitan para la función reproductora. Los cambios físicos tienen una amplia variación de la normalidad. Es pues necesario comprender y conocer estos cambios para poder diferenciar las variaciones normales de las anomalías en el crecimiento y desarrollo puberales. Durante millones de años de evolución de la especie humana, se han ido seleccionando un tipo de comportamientos. Sin embargo, las condiciones culturales y sociales han ido cambiando rápidamente en los últimos miles y más aún en los últimos cientos de años, lo que dificulta la expresión de estos rasgos seleccionados, causando por lo tanto un alto grado de estrés durante la adolescencia, que se traduce en mucha de la patología típica de este período de la vida. PALABRAS C...
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artículo
Publicado 1972
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La Naturaleza, en su sabia organización; dicta unas leyes inalterables que se han de cumplir una y otra vez para que la vida continúe. Muchos seres perviven en este mundo a costa de otros individuos que les sirven de alimento. Las cadenas alimentarias son muy variadas y complejas, pero siempre el eslabón más primario es el vegetal, ya que es el único capaz de alimentarse de sustancias inorgánicas, desarrollarse y reproducirse por la influencia vivificadora de la luz solar.
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artículo
Publicado 2017
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Este documento pretende ser una reflexión sobre las tendencias en la investigación del Virus del papiloma humano (VPH) en América Latina, en comparación con los países de ingresos altos. Materiales y métodos: se proporcionan respuestas sobre el VPH en términos de frecuencia, tendencias de investigación, programas de educación para pacientes y personal sanitario, y estrategias preventivas. Se realizó una revisión extensa de la investigación publicada y de los estudios presentados durante la I Reunión Sudamericana sobre el VPH. Resultados: el trabajo de investigación en el VPH se centra en estudios básicos y aplicados sobre el HVP y el cáncer cervical (CC). Existen limitaciones al desarrollo científico en nuestra región en comparación con los países de altos ingresos, y esto se refleja en la prevalencia de la enfermedad y las tasas de vacunación. Los programas de preve...
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objeto de conferencia
This research has been funded by CONCYTEC Project–World Bank, contract number 017-2018-FONDECYT-BM-IADT-MU
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artículo
Publicado 2014
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In the present work we determine the threshold of the nanoparticle behavior of copper nanoparticles by studying their structural and electronic properties. The studied nanoparticles contain from 13 to 8217 atoms and were obtained by molecular dynamics simulations using the Johnson potential for copper based on the embedded atom method. The results indicate that for small copper nanoparticles (o1000 atoms, 2.8 nm) the surface plays an important role in their physical properties. Whereas, for large nanoparticles (42000 atoms, 3.5 nm), with spherical-like external shape and large percentage of fcc-like local structure, this effect is negligible and their electronic character are similar to such expected in solid copper. Finally, it has also been shown that copper nanoparticles change their electronic character, from metallic to insulating, after increasing the strength of the chemical disor...
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artículo
Publicado 2025
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La intensificación de la actividad ganadera a nivel mundial ha generado una creciente preocupación por su impacto ambiental. En la puna peruana, la crianza de llamas aún no ha sido evaluada desde una perspectiva de sostenibilidad. El objetivo de nuestra investigación fue evaluar la sostenibilidad de la crianza de llamas en la Cooperativa Comunal San Pedro de Racco (Pasco), empleando la metodología SAFA (Sustainability Assessment of Food and Agriculture Systems). El estudio se desarrolló en cuatro fases: mapeo, contextualización, selección y evaluación de indicadores y elaboración del informe final. La información se recolectó a través de encuestas y revisión de documentos de gestión proporcionados por la cooperativa. Tras su evaluación y adaptación al sistema de producción de llamas, se seleccionaron y evaluaron 19 temas, 37 subtemas y 67 indicadores para evaluar su sos...
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artículo
Publicado 2024
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Since its foundation, in 1963, the academic formation of professional foresters in the National Agrarian University of La Molina, Lima, Perú, has been partially performed directly in the forest. This obviously implies higher efforts and costs, but these are considered essential to ensure the quality of the future foresters.
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artículo
Publicado 2018
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Currently the most studied type of magnetic nanoparticles are of cubic structure, inverse spinel, because these materials have very interesting features and possible applications since they facilitate building more complex systems. We must consider that due to the presence of transition metal on the surface of nanoparticles is that the conditions for funcionalizarlas with other molecules through complex functional groups obtaining materials with polar or apolar characteristics, depending on the type of implementation that want to use. Considering that when working with biological systems nanoparticles are detected by the reticuloendothelial system (RES). This functionalization is responsible for preventing agglomeration there of allowing them to remain in stable suspension (magnetic colloids) that can be driven by external magnetic fields. In this work, we show in detail the results obta...
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artículo
Publicado 2015
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In this report, we provide information on food plants of the equatorial saki (Pithecia aequatorialis) and its competitors in highland forest of the micro-watershed of the Itaya River, Peruvian Amazonia. From May to November 2009 and from January to April 2010 we followed silently two family groups with the purpose to identify plants whose fruits are part of their diet. During the contacts we had 90 food events in 48 plant species grouped in 24 families. Of these, 36 live in low hill forest and the rest in high terrace forest. The highest diversity of food plants is grouped into seven families that together accounted for 60.4%, among them Moraceae (8 species), Fabaceae (6 species) and Annonaceae (4 species) families. The fruits were mostly eaten in ripe state, being the mesocarp the most appreciated (40%). Among mammals, seven of the competitors were primates, with the main competitor bei...
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artículo
Publicado 2015
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En este reporte proporcionamos información sobre plantas alimenticias del huapo negro (Pithecia aequatorialis) y sus competidores en bosque de altura de la microcuenca del río Itaya, Amazonía peruana. De mayo a noviembre del 2009 y de enero a abril del 2010 seguimos silenciosamente a dos grupos familiares con el propósito de registrar las plantas cuyos frutos forman parte de su dieta. Durante los contactos tuvimos 90 eventos alimenticios en 48 especies de plantas agrupadas en 24 familias. De ellas, 36 habitan en bosque de colina baja y el resto en bosque de terraza alta. La mayor diversidad de plantas alimenticias está agrupada en siete familias que en conjunto representaron el 60.4%, sobresaliendo entre ellas las familias Moraceae (8 especies), Fabaceae (6 especies) y Annonaceae (4 especies). Los frutos en su mayoría fueron consumidos en estado maduro, siendo el mesocarpio el más...
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artículo
Publicado 2022
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RESUMEN. Las fracturas por estrés son poco frecuentes, vistas generalmente en fuerzas armadas y deportistas de elite. Presentamos un caso de fractura incompleta de fémur distal derecha. DOI: https://doi.org/10.25176/RFMH.v17.n2.842
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artículo
Publicado 2009
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Various doses (0-20 kGy) of gamma radiation have been applied to samples of maca (Lepidium meyenii walp) flour, yellow, white and purple ecotypes, to decontaminate them. The gamma radiation dose required to eliminate the aerobic mesophiles was 12-15 kGy while it was necessary to applied 1-8 kGy to kill fungi, depending on the ecotype of Maca. We have determined the antioxidant activity of the irradiated samples by the method of neutralization of DPPH radical. IC50 values of the studied samples indicate that gamma radiation does not substantially alter the antioxidant activity of aqueous extracts of maca yellow, white and purple. In contrast, the antioxidant activity of hydroalcoholic extracts of irradiated maca yellow decrease sharply, but not the other ecotypes.
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artículo
Due lo the importance of conveying the results of university research lo the community, the Vice Rector of Research of San Marcos University is considering taking advantage of such research through the implementation of productive enterprises. To this end we present a business model for technology-based incubators.
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artículo
Publicado 2010
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Nanostructured a-Fe203 (hematite) was produced usíng high-energy ball milling and analized by X-ray diffraction (XRD), 57Fe Mi.issbauer spectrometry and magnetization measurements. The results showed that after 2 h milling, a-Fe203 nanosize particles were obtained about 15 nm. The 57 Fe Mossbauer spectrometry correlated with magnetometry showed also that Morin transition was notobserved after 0,75 h milling.
