1
artículo
Esta investigación tuvo como objetivo definir la estrategias para la competitividad en la agroexportación de alcachofa, aplicando para ello el modelo de Michael porter referida a las estrategias genéricas o generales; pero complementando el análisis con el modelo de Cliff Bowman, que sitúa mas apropiadamente en el entorno la definición de la estrategia. El resultado fue definir el “liderazgo en costos” como estrategia para la competitividad, complementado con una estrategia de diferenciación. Adicionalmente se analizaron algunos indicadores de producción, exportación, rendimiento, e importancia socioeconómica de la alcachofa. Durante el periodo 1994- 2005, Perú muestra una tendencia creciente en los volúmenes de producción, así como también se sitúa tercero en mayor rendimiento (tm/ha) entre los principales países productores. Por último, se presentan algunas...
2
artículo
Publicado 2022
Enlace
Enlace
Funding Statement: Authors are grateful to Concytec-Peru and The World Bank for the financial support of this project under the call “Mejoramiento y Ampliación de los Servicios del Sistema Nacional de Ciencia Tecnología e Innovación Tecnológica” 8682-PE, through Fondecyt Grant 017-2019 FONDECYT BM INC.INV.
3
artículo
Publicado 2006
Enlace
Enlace
Both authors partially supported by CONCYTEC (Peru) under the research project 551-OAJ (2004), and by Junta de Castilla y León (Spain) under project VA123/04.
4
artículo
Modelling of a Stilling Basins with Sloping Apron in IBER to Improve Efficiency in High-slope Rivers
Publicado 2022
Enlace
Enlace
This research shows the influence of stilling basin slopes on energy loss in rivers with a high gradient. This study takes as a case San Pedro water intake (Ayacucho, Peru). The main objective is to improve efficiency of stilling basins in rivers with high slope. Five dissipation pools of different slopes were modelled: 0%, 1.52%, 3.04%, 4.56% and 6.08% to propose the optimum pool among these, for the San Pedro intake. Results were validated by means of a Sensitivity Analysis, trough comparison with the results of previous investigation and results of modelling San Pedro river with HEC-RAS and IBER. It was obtained that the steeper the slope of the stilling basin, the higher the specific energy loss, the higher the output rate, the longer the stilling basin. It can be concluded that the 3.04% slope stilling basin is the most appropriate for the 6.08% slope river since the slope variation...
5
artículo
Publicado 2023
Enlace
Enlace
Objetivos: determinar la frecuencia del gen mecA en Staphylococcus aureus resistente a meticilina (MRSA) aislados de pacientes atendidos en un hospital de tercer nivel en la región Cajamarca, Perú; asimismo, determinar cuál de los dos antibióticos usados como screening fenotípico tiene mayor utilidad para explicar la presencia de dicho gen. Métodos: se analizaron 71 aislamientos bacterianos provenientes de muestras del Hospital Regional Docente de Cajamarca, la identificación de S. aureus se llevó a cabo mediante el equipo MicroScan. El screening fenotípico para resistencia a meticilina se realizó mediante la técnica de difusión, con discos de cefoxitina y oxacilina. La extracción de ADN se realizó mediante shock térmico, la detección del gen mecA se realizó mediante reacción en cadena de la polimerasa. El análisis estadístico se realizó con el software SPSS v.25. Re...
6
artículo
Publicado 2022
Enlace
Enlace
Se presentan características sedimentológicas y geoquímicas de sedimentos marinos superficiales recientes de la bahía de Paracas, como parte de los Proyectos “Estudio Integrado de la Dinámica de los Procesos Físicos y Biogeoquímicos en Ecosistemas del Borde Costero” y “Fondo Para el Medio Ambiente Mundial”, desarrollados durante 2013, 2014 y 2015. Los sedimentos recientes de la bahía de Paracas corresponden a texturas limo arcilloso, arcilla limosa y limo arenoso, que están asociados a bajas intensidades de corrientes. Los sedimentos arenosos se registraron cerca de la línea de costa y de la desembocadura del río Pisco, la presencia de grava es muy escasa (<1%) hallada al norte del río Pisco. En la zona costera se incrementa la corriente y el oleaje, transportando material más fino hacia lugares donde la corriente es menor. Los mayores valores de materia orgánica to...
7
artículo
Publicado 2024
Enlace
Enlace
Introducction: the principal described risk factors to contract the hepatitis C virus (HCV) are blood transfusion antecedents and intravenous drug use; sexual transmission risk is controversial. In Peru there exist few studies whose female sex worker (FSW) HCV prevalence oscillates between 0-1%. The present study is based in Iquitos, a Peruvian jungle city with high sexual commerce and HIV/AIDS prevalence. Objetive: determine the HCV serological prevalence in Iquitos FSWs attending the STI/ HIV specialist center (CERITSS) and identify associated risk factors. Material and methods: cross-sectional study in FSWs who attended periodic San Juan CERITSS examinations from May 2003 to January 2004. Epidemical questionnaires where used to evaluate the risk factors. To determine HCV antibodies presence, the immunoassay enzyme (EIA) positive results were confirmed by the recomb...
8
artículo
In November 2018, we diagnosed a cluster of falciparum malaria cases in three Chilean travelers returning from Nigeria. Two patients were treated with sequential intravenous artesunate plus oral atovaquone/proguanil (AP) and one with oral AP. The third patient, a 23-year-old man, presented with fever on day 29 after oral AP treatment and was diagnosed with recrudescent falciparum malaria. The patient was then treated with oral mefloquine, followed by clinical recovery and resolution of parasitemia. Analysis of day 0 and follow-up blood samples, collected on days 9, 29, 34, 64, and 83, revealed that parasitemia had initially decreased but then increased on day 29. Sequencing confirmed Tyr268Cys mutation in the cytochrome b gene, associated with atovaquone resistance, in isolates collected on days 29 and 34 and P. falciparum dihydrofolate reductase mutation Asn51Ile, associated with progua...
9
artículo
Publicado 2022
Enlace
Enlace
PURPOSE: Infections are a significant cause of morbidity and mortality in patients with multiple myeloma (MM). In Latin America, data on infectious complications in this patient population are lacking. METHODS: We conducted a prospective cohort study of patients with newly diagnosed MM (NDMM) in seven Latin American countries between June 2019 and May 2020. Patients with active disease, on active therapy, and with a follow-up of 6 months from the time of diagnosis were included. Our primary end point was the number of infectious events that required hospitalization for ≥ 24 hours. RESULTS: Of 248 patients with NDMM, 89 (35.9%) had infectious complications (113 infectious events), the majority (67.3%) within the first 3 months from diagnosis. The most common sites of infection were respiratory (38%) and urinary tract (31%). The microbial agent was identified in 57.5% of patients with gr...
10
artículo
Publicado 2016
Enlace
Enlace
Introduction: The selection of a medical specialty has been associated with multiple factors, such as personal preferences, academic exposure, motivational factors and sociodemographic factors, such as gender. The number of women in the medical field has increased in recent years. In Latin America, we have not found any studies that explore this relationship. Objective: To determine whether there is an association between gender and the intention to choose a medical specialty in medical students from 11 countries in Latin America. Methods: Secondary analysis of the Collaborative Working Group for the Research of Human Resources for Health (Red-LIRHUS) data; a multi-country project of students in their first year and fifth year of study, from 63 medical schools in 11 Latin American countries. All students who referred intention to choose a certain medical specialty were considered as part...
