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1
artículo
Publicado 2025
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The objective of this study was to evaluate the effect of supplementation of multi nutritional blocks (MNB) for growing goats on their productive and economic performance in an intensive system, on the central Peruvian coast. For this, 51 Saanen goats at two months of age and 9.7±1.4kg live weight on average were randomly distributed in three treatments: T0 = control; T1 = MNB supplementation with 24% crude protein (CP), and T2 = MNB supplementation with 29% CP, for a period of two months. Initial live weight (ILW, kg), final live weight (FLW, kg), weight gain (WG, kg), survival rate (SR, %) and economic retribution (ER, S/) were evaluated, using SPSS v. 27. Values of 16.17±1.65 and 6.52±1.44kg were obtained for FLW and WG, respectively, and the SR was 100% for all groups. On the other hand, MNB supplementation had a highly significant effect (p = 0.000) on FLW and WG, and a higher SR...
2
objeto de conferencia
Publicado 2005
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The Andes are classically considered to represent the type of orogenie chains resulting from the subduction of an oceanic plate beneath a continental plate. In spite of a considerable literature invoJving stratigraphie, paleogeographie, structural, magmatic and geophysical data, any model that convincingly ex plains the modality of the Andean surrection has been emerged. Ali the current models focused on the importance of the subducting plate and very few considerations on the heterogeneity of continental plate. Paleogeographie reconstructions, structural evidences and magmatic and metallogenic evolution of Southern Peruvian Western Cordillera and Northern Chi.lean Domeyko Cordillera are used to identify a structure that delineates two different lithospheric blocks.
3
objeto de conferencia
Publicado 2008
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Counterclockwise tectonic rotations in the northern central Andes and clockwise rotations in the southern Central Andes have been systematically reported (see Roperch et al. 2006 and Arriagada et al., 2006 for a recent summary) and interpreted to be mostly driven by oroclinal bending associated with shortening in the Eastern Cordillera and in the subandean belt. Large counterclockwise rotations have been found in the Eastern Cordillera of Southern Peru (Gilder et al. 2003). While these rotations were initially attributed to a Cretaceous event of deformation, Gilder et al. (2003) interpreted these rotations to be coeval with the rotations found along the forearc (Roperch et al., 2006). Rotations along the forearc from Arequipa to Caravelli are larger than 40° and occurred mainly during the late Eocene - Oligocene. However, the lack of data within the Peruvian Altiplano precludes a good d...
4
tesis de grado
Publicado 2016
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La presente investigación, titulado: “La Calidad de las Relaciones Interpersonales en el Personal Administrativo del Block Central A y B de la Universidad Nacional Hermilio Valdizán Huánuco 2016”, tiene por objetivo determinar la calidad de las relaciones interpersonales entre el Personal Administrativo del Block Central A y B de la UNHEVAL, asimismo describir la calidad de la Asertividad y a la Empatía. Respecto al enfoque de investigación que utilizamos para el desarrollo de esta investigación, fue el cuantitativo, pues utilizamos la estadística y el proceso deductivo, ya que fuimos de lo general a lo particular. En cuanto al tipo de investigación que escogimos, fue la pura o básica, pues no hicimos un experimento en laboratorio, sino que aportaremos académicamente al campo de estudio de las Ciencias Sociales, especialmente a las Ciencias de la Comunicación. El diseño d...
5
artículo
Publicado 2012
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The purpose of this study was to evaluate the effect of mineral block supplementation on the productive performance of guinea pigs in a forage-based rearing system under the Peruvian Central Coastal conditions. Thirty two 15-day weaned, male, Peru breed guinea pigs were randomly assigned to eight rearing boxes. A completely random design with two treatments and four replications was used in the study. Treatments were T0 (feeding with maize forage) and T1 (as T0 plus free access to blocks containing macro and microminerals). Body weight gain, feed intake, feed conversion and the economic merit were evaluated. There was statistical difference between treatments on body weight gain (T0: 358.8 and T1: 476.7 g) and feed conversion index (T0: 6.9 and T1: 5.5) (p<0.05), but without statistical difference on feed intake. It was 9% cheaper to produce 100 g body weight of guinea pig using miner...
6
artículo
The author proposed a new seismic response control system using a block and tackle (hereinafter, referred to as a dynamic pulley damper system) developed especially for the high-rise buildings. The proposed system has a configuration where a damper is installed on the track of the cable-stayed wire, amplifying the amount of movement of the wire by using a movable pulley that increases the damping effect to reduce the vibration of a building. we apply this system to connect the core structure (parking tower) and the surrounding frame (housing part) of a high-rise building. This system aims to reduce the earthquake response of the building by the force of the damper attached to the core structure. To verify the effectiveness of this response control system, two types of shaking table tests were conducted; one is the large-scale shaking table test using a magnetic damper, an-other one is th...
7
tesis de grado
Publicado 2024
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The search for sustainable construction systems to address social and environmental problems is increasingly important because there is still a high percentage of deficit in the construction of comfortable homes. This research aims to analyze the proposal of a sustainable construction system of lightened blocks made with plant fibers and clay, applied in the high Andean areas of the central Andes of Peru. For this experimental process, the analysis of the local soil that was used to manufacture the blocks was carried out, resulting in a high percentage of clay, to which plant fibers was incorporated. Then, fifty samples of blocks with different types of dosage were made and ten were selected, which were subjected to physical-mechanical compression resistance tests and compared with what was specified in international and national standards in relation to the units of brickwork. Finally, ...
8
tesis de grado
Publicado 2018
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El presente trabajo tiene como objetivo analizar el desarrollo del proyecto EPC Service - Block 67 - Facilities Production Piranha bajo el enfoque del Project Management Institute (PMI), cuya ejecución fue realizada por la empresa Conduto Perú SAC en el período de diciembre de 2012 a marzo de 2014 para la empresa Perenco Perú Petroleum Limited Sucursal del Perú. Se describe la realización de la planificación y seguimiento del proyecto, desarrollando las herramientas y técnicas de las distintas áreas de conocimiento propuestas por el PMBOK IV Edición, cuyo alcance fue un EPC que incluye el desarrollo de la Ingeniería de detalle, procura y ejecución de la obra civil, mecánica, eléctrica y de control de una Estación Central de Producción de Crudo Pesado con una capacidad de proceso de 10.000 BPD, incluyendo el pre-comisionado, comisionado y start up. Entre las conclusiones, ...
9
artículo
Publicado 2016
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The Historic Center of Lima is the foundational and current central area of Lima’s urban social fabric; it covers an area of 239.69 ha. of which Barrios Altos represents 63 Ha. (26%). Even though it harbors patrimonial estate, very important for the city’s urban history, today it presents a high degree of social deterioration, urban blight and sensitive areas, which have a risk of collapse that could affect about 4500 families.The research focuses on two representative blocks of Barrios Altos (Cadastral codes 6007 and 6016). We start from their historical recognition, their critical situation expressed in quantitative data, the review of regulations for urban renewal and the casuistry of successful cases in Latin American cities. It allows us to reflect on the Basic Guidelines (BG) proposed by the Metropolitan Municipality of Lima for the morphological reconfiguration of both blocks;...
10
artículo
Publicado 2016
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The Historic Center of Lima is the foundational and current central area of Lima’s urban social fabric; it covers an area of 239.69 ha. of which Barrios Altos represents 63 Ha. (26%). Even though it harbors patrimonial estate, very important for the city’s urban history, today it presents a high degree of social deterioration, urban blight and sensitive areas, which have a risk of collapse that could affect about 4500 families.The research focuses on two representative blocks of Barrios Altos (Cadastral codes 6007 and 6016). We start from their historical recognition, their critical situation expressed in quantitative data, the review of regulations for urban renewal and the casuistry of successful cases in Latin American cities. It allows us to reflect on the Basic Guidelines (BG) proposed by the Metropolitan Municipality of Lima for the morphological reconfiguration of both blocks;...
11
tesis de maestría
Publicado 2018
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Estudia la efectividad de la técnica anestésica scalp block en pacientes con resección de tumor cerebral, en el Instituto Nacional de Enfermedades Neoplásicas en el periodo 2016-2017. El aumento de cirugías a nivel supratentorial, asociadas al glioblastoma multiforme, que se realizan en la institución, constituyen el tumor primario cerebral del sistema nervioso central de mayor frecuencia y de mal pronóstico, involucra tratamiento preferentemente quirúrgico, porque el uso de quimioterapia y radioterapia concomitante, si bien mejoran la sobrevida de los pacientes, también se asocian a mayor toxicidad.
12
tesis de grado
Publicado 2019
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MINERA CENTRO SAC-UEA PORVENIR, se encuentra ubicada en el flanco de la cordillera oriental de los Andes en el paraje La Anunciada, distrito de Quichuay, provincia de Huancayo, departamento Junín; es accesible desde la ciudad de Lima por la Carretera Central hasta Huancayo km. 216 margen izquierda del río Mantaro, a 7.20 kilómetros se encuentra la UEA. La presente tesis titulada: “ANALISIS DE LAS OPERACIONES MINERAS EN EL CORTE DE BLOCKS DE TRAVERTINOS Y SU INDUSTRIALIZACION EN MINERA CENTRO S.A.C.-U.E.A. PORVENIR PROVINCIA DE CONCEPCION-JUNIN.”, se desarrolla planteando el siguiente problema: ¿ De qué manera el análisis de las operaciones mineras en el corte de Blocks de travertinos y su industrialización permitirá mejorar la productividad en Minera Centro SAC- UEA Porvenir Provincia de Concepción - Junín? Las técnicas que se utilizarán en este estudio, serán la inspecc...
13
artículo
Publicado 2012
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El objetivo del presente estudio fue evaluar el efecto de la suplementación con bloques minerales sobre los parámetros productivos en cuyes de engorde alimentados con maíz chala en condiciones de la costa central de Lima, Perú. Se emplearon 32 cuyes machos, recién destetados, de la raza Perú, distribuidos en ocho pozas de crianza. Se empleó un diseño completamente al azar con dos tratamientos con cuatro repeticiones (las pozas). Los tratamientos fueron T0 [alimentación con forraje (maíz chala)] y T1 (alimentación con forraje y suplementación con bloques conteniendo macro y microminerales). Se evaluó ganancia de peso, consumo de alimento, conversión alimenticia y mérito económico a las 12 semanas del estudio. Se encontró diferencia significativa en ganancia de peso (T0: 358.8 y T1: 476.7 g) y en conversión alimenticia (T0: 6.9 y T1: 5.5) (p<0.05), pero no hubo diferen...
14
artículo
Publicado 2020
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The study was carried out in the central Andes of Peru aiming to evaluate promising genotypes of dual-purpose barley (greater grain and straw yield), cultivated during the dry season. Twenty-five genotypes, of which 22 were barley mutants generated by induction from the commercial variety UNA La Molina 96 were tested. A completely randomized block design with 25 barley genotypes and 3 replications per genotype was used. The yield in grain (kg/ha) and straw (kg DM/ha) was evaluated, as well as the protein content, neutral detergent fibre and in vitro digestibility of organic matter for the straw. The genotypes that showed the best characteristics for a dual-purpose barley were UNALM 96 M6h-617, followed by UNA 80 line 525 and UNALM 96 M6h-326. No significant relationship was found between grain and straw production.
15
artículo
Publicado 2013
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The objective of this study was to determine the stability of commercial and experimental maize hybrids in the Central Ecuadorian Coastal Region. During a period from december 2010 to april 2011 uniform trials of yield in four locations with contrasting environments were evaluated. The genetic material was constituted by five experimental hybrids and three commercial. The experimental design used was completely randomized blocks design with four replications; the experimental plots were two rows with a length of 5.0 m separated to 0.90 meters. The combined analysis of variance proposed by Eberhart and Russel was statistical significance as well as for genotype and for interaction. The average yield showed that between experimental hybrids two, (SM45 x SSD08)SV39 and (SM45 x SV15)SV39, were highlighted with averages higher than 7.0 t ha-1 whilst AG-003 was the highlighted commercial hybri...
16
artículo
Publicado 2013
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The objective of this study was to determine the stability of commercial and experimental maize hybrids in the Central Ecuadorian Coastal Region. During a period from december 2010 to april 2011 uniform trials of yield in four locations with contrasting environments were evaluated. The genetic material was constituted by five experimental hybrids and three commercial. The experimental design used was completely randomized blocks design with four replications; the experimental plots were two rows with a length of 5.0 m separated to 0.90 meters. The combined analysis of variance proposed by Eberhart and Russel was statistical significance as well as for genotype and for interaction. The average yield showed that between experimental hybrids two, (SM45 x SSD08)SV39 and (SM45 x SV15)SV39, were highlighted with averages higher than 7.0 t ha-1 whilst AG-003 was the highlighted commercial hybri...
17
tesis de grado
Publicado 2002
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With the purpose of determining the varieties of yield and adaptation, with characteristic agronomic desirable for the Central Huallaga; he/she put on in execution a experiment comparative of six varieties of Soya, all them proceedings from Bolivia; reaching the potential maximum of yield the variety IAC-8C with 4230.47 Kg./he of grain, without to be able to find difference signíficant statistic wíth the varieties OCEPAR-9, CRYSTALLINE-T, IAC-8, CRYSTALLINE with 3709.35, 3621.12, 3585.94, 3375.00 Kg/he respectively. The experiment in mention was carried out in the District of Caspizapa, Province of Picota, Region San Martín, in a soil Vertisol, fine texture, Potassium and Phosphorus middle, high saturation of bases. The disposition of the used experiment was at random of Complete Block with four repetitions, eight furrows twins and between plant to 0.20 m, being obtained a population ...
18
objeto de conferencia
Publicado 2021
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Integration of detailed stratigraphic, sedimentologic and tectonic studies of the Río Cañete Basin with opening and divergence rates of the South Atlantic Ocean, overriding plate velocity, trench migration, subducting age (Fig. 1) etc. and the protracted Mesozoic Farallon Plate oblique convergence parameters provide new lines of evidence to suggest an alternative model for the evolution of the Peruvian margin. These unorthodox model departures significantly from the classic and simplistic Andean Model used in the literature. The western margin of Gondwana experience severe lithosphere extension coeval with arc magmatism since at least Middle Triassic. Actually, only the uppermost Jurassic unit is displayed along the Río Cañete Basin, however, it is important to take into account that northward the Jurassic arc sequence terminates against the accreted Amotape/Olmos Terrain and it over...
19
objeto de conferencia
Publicado 1996
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The Pucará Group platform carbonates (Upper Triassic - Lower Jurassic) were laid down in northern and central Peru in a NNW-SSE elongated basin (Fig. 1). They represent the first sediments of the Andean cycle, the beginning of which is marked by a Norian transgression (Mégard, 1978). The sedimentary evolution of the Pucará Group can be explained in terms of a large transgressive/regressive second order sequence which consists of predominantly shallow water carbonates including a maximum flooding period represented by ammonite-bearing bituminous calcareous shales. Detailed investigations in the southern part of the basin show that the Pucará Group thickens progressively from west to east in the form of a half-graben (Fig. 2). This can be explained by asymmetrical subsidence during sedimentation such being assisted by contemporaneous faulting along the eastern margin of the basin (perm...
20
tesis de grado
Publicado 2020
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Universidad Nacional Agraria La Molina. Facultad de Agronomía. Departamento Académico de Fitotecnia
