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1
artículo
The hydroalcoholic extract of the fruit of Vaccinium floribundum HBK "pushgay" was tested in Rattus rattus variety albinus to determine its hepatoprotective effect against oxidative stress induced by carbon tetrachloride. We worked with 20 rats divided into four groups: negative control, which was inoculated for seven days via orogastric tube, sterile physiological saline (SSFE); positive control, which was inoculated two days via orogastric tube, carbon tetrachloride 1 mL·Kg-1 body weight and then by five consecutive days SSFE and experimental, consisting of two groups, which were inoculated, via orogastric tube, carbon tetrachloride 1mL·Kg-1 body weight for two days and then for five consecutive days, the hydroalcoholic extract of Vaccinium floribundum at concentrations of 300 mg·Kg-1 body weight and 600 mg·Kg-1 body weight each group respectively. The concentration of free radical...
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artículo
The Andean Leishmaniasis locally known as "uta" is the most frequent type of cutaneous leishmaniasis in Peru. Ancash is an endemic region and Pampas Grande is the district with higher incidence of the disease in humans in the province of Huaraz in 1998. The objective of this research was to determine the presence of Leishmania sp. infection in domestic dogs in the district of Pampas Grande. A total of 83 dogs distributed in seven villages were sampled in August-September 2000. Ali samples were submitted to three laboratory analyses for the detection of cutaneous leishmaniasis: Giemsa smears, antibody detection in serum through indirect immunofluoresence (IFI), and immunoleish skin test (IDR). The results indicate 3.6% incidence while using Giemsa smears and IFI, whereas 4.8% while using IDR. The study showed that Leishmania sp. infection is present in at least 5.4% of the canine domes ti...
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artículo
The aim of the study was to analyze the influence of the egg disinfection method and breeder age on incubation parameters in a turkey breeder farm. Two disinfection methods were evaluated: T1, fumigation with formaldehyde gas (8 g/m3) and T2, wetting with a glutaraldehyde + quaternary ammonium solution (4 ml/l of water), which were applied to hatching eggs from two batches of B.U.T breed turkeys from 51 to 57 weeks of age. A completely randomized block design with a 2x7 factorial arrangement was used. Hatchability, birth, mortality and discard parameters were determined. The disinfection method influenced the culling of hatched poults (p<0.05), where T1 achieved less culling (3%) compared to T2 (3.8%). No significant differences were observed in hatchability, births and mortality between disinfection methods. The increase in the age of the breeder generated a significant decrease (p&l...
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artículo
La leishmaniasis andina, comúnmente conocida como "uta" es la forma más frecuente de presentación de leishmaniasis cutánea en el Perú. El departamento de Ancash es una zona endémica de la enfermedad y Pampas Grande el distrito con mayor incidencia de casos humanos observados en la provincia de Huaraz en el año 1998. El objetivo del presente trabajo fue determinar la presencia de infección por Leishmania sp. en los caninos domèsticos del distrito de Pampas Grande. Un total de 83 perros provenientes de 7 caseríos, fueron muestreados entre agosto y septiembre de 2000. Estos animales fueron sometidos a 3 pruebas diagnósticas de leishmaniasis cutánea: frotis-coloración Giemsa, determinación de anticuerpos en suero mediante inmunofluorescencia indirecta (IFI) e intradermorreacción canina (IDR). Los resultados indicaron 3.6% de animales positivos a frotis-coloración Giemsa e IFI...
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artículo
So far, Peruvian nuclear research reactors RP-10 and RP-0 have been operating only with uranium oxide fuel elements (U3O8+Al). In the future RP-10 reactor will operate with mixed cores (U3Si2+Al, U3O8+Al). For this reason the calculus capacity has to be increased in order to be able to handle the new fuel management. Since preparation of nuclear libraries for diffusion calculation requires a significant amount of computational and human resources a new tool that processes libraries generation and diffusion calculations is necessary.
6
tesis de maestría
Hoy en día existe una creciente tendencia hacia el cuidado y la imagen personal, no sólo en cuanto a estilos, tendencias y modas; existe además el aprovechamiento de la tecnología en el desarrollo de nuevos productos para la industria de la belleza y para quienes prestan este tipo de servicios, el cual en los últimos años está orientándose en forma creciente al segmento adolescente y juvenil. Por ende, el mercado elegido es la población femenina adolescente y juvenil de la ciudad de Lima Metropolitana, cuyas edades oscilen entre los 16 y 24 años de edad, de los niveles socioeconómicos A2 y B1, que además cumplan con el perfil psicográfico de las “Afortunadas”. Este segmento, según el estudio de mercado realizado, no cuenta con un local que las atienda exclusivamente, teniendo que atenderse con personas de distintas edades, sintiéndose cohibidas de expresarse libremente...
7
artículo
This research had as purpose to establish a relationship between metalinguistic abilities and memory in students of first and second grade in Metropolitan Lima. A sample of 164 children were assessed, between first and second grades of primary school, both of sexes, whose ages ranged between 6 and 7 years olds, who applied the Metalinguistic Abilities Test by Gomez, Valero, Buades and Perez (adapted to our reality by Panca, 2000) and Digit Span Subtest of the Wechsler Intelligence Scale for Children (WISC III). The results showed a correlation between metalinguistic abilities and memory of children. A positive correlation was found between syllable segmentation, syllable deletion, rhyme detection, join the phonemes and phoneme counting with retention of digits in forward order, and negative correlation between syllable addition and retention of digits in progressive order. Also it was fo...
8
artículo
This research had as purpose to establish a relationship between metalinguistic abilities and memory in students of first and second grade in Metropolitan Lima. A sample of 164 children were assessed, between first and second grades of primary school, both of sexes, whose ages ranged between 6 and 7 years olds, who applied the Metalinguistic Abilities Test by Gomez, Valero, Buades and Perez (adapted to our reality by Panca, 2000) and Digit Span Subtest of the Wechsler Intelligence Scale for Children (WISC III). The results showed a correlation between metalinguistic abilities and memory of children. A positive correlation was found between syllable segmentation, syllable deletion, rhyme detection, join the phonemes and phoneme counting with retention of digits in forward order, and negative correlation between syllable addition and retention of digits in progressive order. Also it was fo...
9
artículo
The research presented was to establish whether there was any connection between the personal factors of resilience and self-concept in primary school students in Lima. For its performance was evaluated at 420 students, of both sexes, aged between 10 and 12 years, who were in the fifth and sixth grades of primary schools from different Lima state who completed the inventory of factors personal resilience proposed by Salgado (2005) and Self-Concept Questionnaire proposed by Belen García Garley, adapted to our reality for purposes of the investigation. Results showed that correlation exists between the personal factors of resilience and self-concept. He also found a relationship between the factors self-esteem and empathy with all components of the self-concept. When comparing men with women’s self-concept were no significant differences in the physical, social and family in favor of wo...
10
artículo
The research presented was to establish whether there was any connection between the personal factors of resilience and self-concept in primary school students in Lima. For its performance was evaluated at 420 students, of both sexes, aged between 10 and 12 years, who were in the fifth and sixth grades of primary schools from different Lima state who completed the inventory of factors personal resilience proposed by Salgado (2005) and Self-Concept Questionnaire proposed by Belen García Garley, adapted to our reality for purposes of the investigation. Results showed that correlation exists between the personal factors of resilience and self-concept. He also found a relationship between the factors self-esteem and empathy with all components of the self-concept. When comparing men with women’s self-concept were no significant differences in the physical, social and family in favor of wo...
11
artículo
Purpose: Triple-negative breast cancer (TNBC) requires the iden- tification of reliable predictors of response to neoadjuvant chemotherapy (NACT). For this purpose, we aimed to evaluate the performance of the TNBCtype-4 classifier in a cohort of patients with TNBC treated with neoadjuvant carboplatin and docetaxel (TCb).Methods: Patients with TNBC were accrued in a nonrandomized trial of neoadjuvant carboplatin AUC 6 and docetaxel 75 mg/m2 for six cycles. Response was evaluated in terms of pathologic complete response (pCR, ypT0/is ypN0) and residual cancer burden by Symmans and colleagues. Lehmann's subtyping was performed using the TNBCtype online tool from RNAseq data, and germline sequencing of a panel of seven DNA damage repair genes was conducted.Results: Ninety-four out of the 121 patients enrolled in the trial had RNAseq available. The overall pCR rate was 44.7%. Lehmann subtype ...