Examinando por browse.metadata.type "info:eu-repo/semantics/other"
  • Publicación
    A simple proof of the interlace theorem for hermitian matrices
    (Taylor & Francis Online, 1990)
    Mercer A.M.
    Presents a simple proof of the interlace theorem for hermitian matrices.
  • Publicación
    Conferencia Virtual Internacional sobre Gestión de la Información en CTI 2021 [Brochure]
    (Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec, 2021-09)
    Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
    Contiene la programación, temas y datos de los expositores participantes en la Conferencia Virtual Internacional sobre Gestión de la Información en CTI 2021 realizada el 9 y 10 de setiembre del 2021.
  • Publicación
    Conferencia Virtual Internacional sobre Gestión de la Información en CTI 2021: memoria 9 y 10 de septiembre de 2021
    (Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec, 2021-11)
    Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
    Presenta la memoria de la Conferencia Virtual Internacional sobre Gestión de la Información en CTI 2021 realizada el 9 y 10 de setiembre del 2021.
  • Publicación
    Evaluating the Guo–Campanella viscoelastic model
    (Blackwell Publishing Ltd, 2018)
    Augusto P.E.D.
    ;
    Miano A.C.
    ;
    Rojas M.L.
    Biological materials are characterized by complex structures and compositions, leading to viscoelastic behavior. Their viscoelastic characterization is important for the evaluation, design, and optimization of processes to ensure high quality products. Proposals of methodologies of analysis and modeling are critical steps in studying the rheological properties of these materials. In this context, a new model, the Guo-Campanella Model, was recently proposed to describe the stress-relaxation behavior of biological material. This work is an independent and impartial evaluation of this new model. It considers 10 different samples, comprising in natura and processed foods, from both plant and animal bases. For comparison, a Generalized Maxwell Model and the Peleg Model were also evaluated. The Guo-Campanella Model fitted the stress-relaxation data of evaluated products well, demonstrating its validity for describing the viscoelastic behavior of biological materials with different structures, sources, and processing. Finally, the Guo-Campanella Model parameters were evaluated and their interpretations and possible uses described. It was shown that the Guo-Campanella Model can be successfully used for future studies.
  • Publicación
    First confirmed records of the endangered Andean pitviper Bothrops lojanus Parker, 1930 (Viperidae: Crotalinae) from Peru
    (Societas Europaea Herpetologica, 2016)
    Carrasco P.A.
    ;
    Venegas P.J.
    ;
    Valencia J.H.
    The enigmatic pitviper Bothrops lojanus, is an endangered snake known only in southwestern Ecuador. The present study confirms the presence of the species in northwestern Peru, extending its known distribution 307 km southward of the type locality of Loja.
  • Publicación
    Geographic and altitudinal range extension of oreobates amarakaeri padial et al., 2012 (anura: Craugastoridae)
    (Magnolia Press, 2019)
    Ttito A.
    ;
    Catenazzi A.
    The genus Oreobates Jiménez de la Espada (1872) is monophyletic, and currently 24 species of Oreobates have been named Oreobates distributed from southern Colombia to central Brazil and northwestern Argentina. Most species of Oreobates occur in the cloud and montane forests of the tropical and subtropical Andes from Ecuador to Argentina. Authors described Oreobates amarakaeri with two specimens collected in 2008 between 685–1000 m a.s.l. in Distrito Camanti, Quispicanchis Province, Department of Cusco, Peru. Herein we report four additional specimens of O. amarakaeri, extending its distributional and altitudinal ranges in southern Peru. We collected specimens during our surveys in the Departments of Cusco and Puno.
  • Publicación
    Global high-risk clone of extended-spectrum ?-lactamase (ESBL)-producing Klebsiella pneumoniae ST307 emerging in livestock in Peru
    (Elsevier B.V., 2021)
    Fuentes-Castillo D.
    ;
    Shiva C.
    ;
    Lincopan N.
    ;
    Sano E.
    ;
    Fontana H.
    ;
    Streicker D.G.
    ;
    Mahamat O.O.
    ;
    Falcon N.
    ;
    Godreuil S.
    ;
    Benavides J.A.
    Presents a letter about the global high-risk clone of extended-spectrum β-lactamase (ESBL)-producing Klebsiella pneumoniae ST307 emerging in livestock in Peru.
  • Publicación
    Is glucose-6-phosphate dehydrogenase deficiency more prevalent in Carrion's disease endemic areas in Latin America?
    (Elsevier (Singapore) Pte Ltd, 2015)
    Mazulis F.
    ;
    Weilg C.
    ;
    Alva-Urcia C.
    ;
    Pons M.J.
    ;
    del Valle Mendoza J.
    Glucose-6-phosphate dehydrogenase (G6PD) is a cytoplasmic enzyme with an important function in cell oxidative damage prevention. Erythrocytes have a predisposition towards oxidized environments due to their lack of mitochondria, giving G6PD a major role in its stability. G6PD deficiency (G6PDd) is the most common enzyme deficiency in humans; it affects approximately 400 million individuals worldwide. The overall G6PDd allele frequency across malaria endemic countries is estimated to be 8%, corresponding to approximately 220 million males and 133 million females. However, there are no reports on the prevalence of G6PDd in Andean communities where bartonellosis is prevalent.
  • Publicación
    Jumbo squid in the eastern Pacific Ocean: A quarter century of challenges and change
    (Elsevier, 2016)
    Rodhouse P.G.K.
    ;
    Yamashiro C.
    ;
    Arguelles J.
    The jumbo, or Humboldt, squid Dosidicus gigas currently accounts for about one third of total world squid landings ( Arkhipkin et al., 2015). It is the largest and most abundant ommastrephid squid in the eastern Pacific, where it is endemic. It is an important predator throughout its geographical range ( Markaida, 2006, Field et al., 2013 and Alegre et al., 2014) and is prey for large marine mammals, particularly sperm whales in the southeastern Pacific, for which it is the single most important food species ( Clarke et al., 1988 and Nigmatullin et al., 2001).
  • Publicación
    Ley de promoción del desarrollo del investigador científico 2019
    (Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec, 2019-05-23)
    Congreso de la República
    Busca promover la labor del investigador científico altamente especializado, seleccionado mediante procesos competitivos y transparentes, que permita contar con una plataforma de desarrollo científico y tecnológico a favor del país. Para tal fin se reconoce la trayectoria del investigador científico, destacando principalmente el mérito de sus actividades científicas o tecnológicas, y se establece mecanismos para atraer y retener al investigador científico, nacional y extranjero; para fortalecer y consolidar la competitividad nacional y para dotar al Estado de capital humano en ciencia, tecnología e innovación tecnológica que contribuya con el desarrollo sostenible del país.
  • Publicación
    Morphological, genetic, and ecological differences among the low-latitude kelps Eisenia Cokeri and e. Gracilis
    (Taylor & Francis, 2021)
    Carbajal, Patricia
    ;
    Arakaki, Natalia
    ;
    Perez-Araneda, Karla
    ;
    Tellier, Florence
    [Abstract not available]
  • Publicación
    Nomenclatural instability in the venomous snakes of the Bothrops complex: Implications in toxinology and public health
    (Elsevier, 2016)
    Carrasco P.A.
    ;
    Venegas P.J.
    ;
    Chaparro J.C.
    ;
    Scrocchi G.J.
    Since nomenclature is intended to reflect the evolutionary history of organisms, advances in our understanding of historical relationships may lead to changes in classification, and thus potentially in taxonomic instability. An unstable nomenclature for medically important animals like venomous snakes is of concern, and its implications in venom/antivenom research and snakebite treatment have been extensively discussed since the 90´s.
  • Publicación
    Plan Nacional de Competitividad y Productividad 2019-2030
    (Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec, 2019-07-28)
    Ministerio de Economía y Finanzas
    Presenta una síntesis articulada y consensuada de un conjunto priorizado de medidas de política con hitos de corto, mediano y largo plazo para avanzar en la consecución de la visión de país establecida en los nueve Objetivos Prioritarios (OP) de la PNCP: 1. Infraestructura Económica y Social de Calidad (OP1); 2. Fortalecimiento del Capital Humano (OP2); 3. Desarrollo de Capacidades para la Innovación, Adopción y Transferencias de Mejoras Tecnológicas (OP3); 4. Mecanismos de Financiamiento Local y Externo (OP4); 5. Mercado Laboral Dinámico y Competitivo (OP5); 6. Ambiente de Negocios Productivo (OP6); 7. Comercio Exterior de Bienes y Servicios (OP7); 8. Institucionalidad (OP8) y 9. Sostenibilidad Ambiental en las actividades económicas (OP9). Este documento tiene como propósito servir de enlace entre la visión de país formulada y diseñada a partir de la Política Nacional de Competitividad y Productividad (PNCP) y la implementación de medidas de política necesarias para orientar la realidad del país hacia esa visión. El Plan Nacional de Competitividad y Productividad constituye un marco que da soporte a una acción gubernamental articulada, eficaz y eficiente. Su diseño resalta la importancia de sumar articuladamente los esfuerzos de todos los agentes que intervienen en cada campo de actividad económica y social para garantizar la viabilidad política de su ejecución. Asimismo, cuenta con grados de flexibilidad que permiten modifi caciones y adaptaciones sobre la base de los procesos de seguimiento y control de la aplicación de las medidas de política.
  • Publicación
    Política Nacional de Competitividad y Productividad 2019-2030
    (Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec, 2018-12-31)
    Ministerio de Economía y Finanzas
    Adopta una concepción estructuralista del concepto de competitividad y la interpreta como la capacidad que tiene una nación para competir exitosamente en los mercados, a través de la utilización eficiente de sus recursos naturales renovables y no renovables y el aprovechamiento de sus ventajas comparativas, generando así bienestar compartido. El objetivo general de la Política Nacional de Competitividad y Productividad (PNCP) es la generación de bienestar para todos los peruanos sobre la base de un crecimiento económico sostenible con enfoque territorial. Este objetivo se construye sobre la base de los ejes 3, 4 y 5 establecidos en el artículo 3 de la Política General de Gobierno al 2021, publicada mediante Decreto Supremo Nº 056-2018-PCM en mayo de 2018. La PNCP constituye, entonces, el hilo conductor de la política de gobierno en materia de crecimiento, con la ambición de que perdure más allá del mandato de la actual administración y se convierta en una verdadera Política de Estado, toda vez que guarda consistencia y desarrolla las políticas aprobadas en el marco del Acuerdo Nacional.
  • Publicación
    Relationship between p16 and tumor-infiltrating lymphocytes in Peruvian patients with head and neck cancer
    (Elsevier, 2021)
    Castaneda, C. A.
    ;
    Castillo Garcia, M.
    ;
    Bernabe, L. A.
    ;
    Sanchez, J.
    ;
    Tello, K.
    ;
    Alatrsita, R.
    ;
    Villa, L.
    ;
    Sichero, L.
    ;
    Enciso, J.
    ;
    Guerra, H.
    Human papillomavirus-16 (HPV-16) infection in Head and Neck Squamous Cell Carcinoma (HNSCC) has a different prevalence through worldwide regions, it influences prognosis and treatment response and p16 staining is its surrogate biomarker. The density and composition of tumor-infiltrating lymphocytes (TIL) reflect biology and prognosis in different malignancies. We characterize TIL in Peruvian patients with HNSCC. We evaluate the influence of clinicopathological features including p16 & ki67 staining in tumor cells over TIL level.
  • Publicación
    The northern Humboldt Current System: Brief history, present status and a view towards the future
    (Elsevier, 2008)
    Chavez F.P.
    ;
    Bertrand A.
    ;
    Guevara-Carrasco R.
    ;
    Soler P.
    ;
    Csirke J.
    The tropical ocean off the west coast of South America is notable for several reasons. First, it is unusually cool for an ocean that is so close to the equator with sea surface temperatures at 5 S off Peru as cool as 16 C when most other tropical locations are in excess of 25 C. Upwelling of cool waters brings phytoplankton nutrients to the surface, dramatically increasing biological productivity in this low-latitude region of few storms. S
  • Publicación
    Towards sustainability: Photochemical and electrochemical processes applied for environmental protection
    (Hindawi Limited, 2018)
    Natividad R.
    ;
    Barrera-Díaz C.
    ;
    Martínez-Huitle C.A.
    ;
    Rodríguez-Rodríguez J.M.
    In the last century, public policy around the globe was mainly focused on economic growth leaving out of this perspective, social concerns and the environment detriment that this merely economic approach was causing. It was until the last quarter of the 20th century that people started to be aware of the growing poverty and of the jeopardy of the planet as a result of human being activities. In consequence, the concept of sustainable development emerged in the United Nations as a call to all countries to integrate economic growth with social needs and environmental protection, in such a way that our activities as earth inhabitants stopped compromising the quality of life and needs satisfaction of future generations.More recently, in 2016, effective 17 sustainable development goals established within the United Nations came officially. The embracement of these goals implies the design and execution of strategies that pursue poverty elimination by also addressing social needs and environmental protection. In this sense, the development of cleaner technologies and more effective sanitation systems is imperative and this has motivated the assessment of new technologies, many of them based on photochemical and electrochemical phenomena. Thus, this special issue aims to present original results regarding relevant aspects of such processes. For this purpose, ten manuscripts have been included.Within the framework of photochemical processes, different issues were addressed ranging from novel photocatalysis approaches, photocatalyst synthesis improvements, emerging contaminant degradation, and photoreactor modeling and simulation.