Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Virtue is a subject addressed from different perspectives, with inclusions, exclusions and repetitions of characteristics that give or nullify meaning to its essence. This article identifies the pillars that support the existence of the same, analyzing and contrasting different aspects found in the cited literature. Three factors are proposed: moral fact, character and will, which are raised and justified as elementary and necessary to prevail as such. In turn, based on these elements of virtue, three latitudes were detected: knowledge and reason; actions done; and intentionality. The parallelism between these factors of virtue and latitudes of scientific communication can be expressed in the following ways: (i) the character factor corresponds to the latitude of knowledge and reason since the knowledge of the researcher's science would include handling of literature , tools, techniques and methods; (ii) the moral fact as an element of virtue, gives rise to the latitude of actions carried out in scientific culture, including the investigative act itself, the fieldwork, the writing of articles, and the search for spaces for communication; and (iii) the element of the will, which brings with it the latitude of intentionality, implies the inclination and interest of the researcher, whether motivated by his search for recognition, personal or professional achievement and enables the achievement of incentives to continue carrying out the scientific activity.

The computer science discipline shows different evidences of its theoretical and empirical approaches. This is how studies based on the evidence-based software engineering provide a logical-methodological approach. In this inquiry the approach from Software Engineering and in particular the treatment of their topics from the SWEBOK guide and how they are represented Some of these areas in the final graduation work of students of the Bachelor's Degree in Information Systems in the 2016 school year. The document outlines the methodological framework that argues the proposal. The results show the predominance of one of the areas of knowledge which could be explained by the curricular line assumed from the task that is treated and deepened in this professional and personal training space. The described research shows the preference of the students when choosing the subjects of completion of the degree, in particular associated with the areas of knowledge dealt with in SWEBOK. Therefore, these indicators could be used to define different strategies that guide the choice of topics with regional, national or multinational interested.

This paper shows pair breaking and electrostatic (Coulomb) interaction effects on the distribution of mass and kinetic energy in cold fission of 233U, 235U and 239Pu thermal neutron induced. The fission process ends at the scission point, when the complementary fragments 1 and 2, having masses y are formed. Then those fragments goes away each other and acquire kinetic energies y , reaching the detectors after emission of y neutrons, having masses and kinetic energies, respectively. As a result, in regions where the average of varies abruptly as function of , the distribution of will be wider than it was for the distribution of as a function of . Furthermore, the emission of neutrons erodes odd-even effects on the distribution of neutron number, defined as the difference between the relatives yields of fragments with even and odd, respectively. Neutron emission, consequently, also erodes the odd-even effect on the mass distribution of the fragments. To avoid these disturbances, cold fission, i.e. with no neutron emission, is studied. Windows with total kinetic energy close to the maximum available energy, corresponding to low total excitation energy, are selected. Contrary to expected, for that excitation energy region, a weak even-odd effect is observed. This result is not incompatible with a strong odd-even effect on the charge distribution or neutron number distribution. Moreover, in cold fission, the minimum value of total excitation energy, as a function of , is correlated with the "Coulomb energy excess" defined as the difference between the energy electrostatic interaction of the complementary fragments (assumed spherical) in the scission point and the available energy of the reaction. This also explains correlation fluctuations in the maximum kinetic energy as a function of the mass. This effect increases with the asymmetry of the charge fragmentations. In sum, the experimental data on cold fission suggest that scission configurations explore all the possibilities available energy for fission.

Management systems affect the quality of the soil, due to the influence of the quantity and quality of soil organic matter, which can affect soil aggregation state. The aim of this study was to verify the influence of total organic carbon (TOC) in soil aggregate stability. The soil management systems evaluated were: Forest, pasture with 35 years, production of grains (corn and soybean) over conventional seeding system prepare the ground (Ploughshare and level for 35 years) (SC) and direct seeding system rotation of corn (SDRM) for 20 years since 1991. Before 1991 the area was used for grain production on SC. This study was conducted in the city of Jaboticabal, state of São Paulo, Brazil with latitude 21 ° 14'S, longitude 48 ° 17'W, located at 595 m altitude. According to the Brazilian System of Soil Classification [1], the soil was classified as a Latossolo eutróferrico Vermelho, according to the USDA Soil taxonomy database [3], is an Oxisol (Rhodic eutrudox). Soil samples were collected in the litter of 0-0.1 m depth in each management 38 system, at random and with a hoe, taking 30 samples of soil, collected in the SDRM was in between the lines of crops and in the SC was before preparing the soil, which were analyzed weighted mean diameter (WMD) of water-stable aggregates based on the methodology of [2] and the amount of TOC using the procedures described by [4]. COT data and soil DMP were statistically analyzed and means were compared by t test, a 5% probability. Each land management situation was considered a random sample of size 30 (soil samples). Separately for each soil management situation, we performed Pearson correlation analysis (P <0.05) occurred between TOC and DMP. The present grazing system and DMP TOC values similar to forest soil, with this system that presented the highest values of TOC and DMP in relation to use systems with SDRM and SC. The SC system presented the lowest values of DMP and TOC. Significant and positive correlations were obtained between TOC and DMP in all dealings evaluated. Therefore, in this study, soil aggregation was governed mainly by soil TOC.

The infiltration is one of the hydrological processes that receives a lot of importance in the environmental engineering and of water resources, per decades many investigators have come doing efforts to model the process of infiltration, departing from the equation of Richards (1931). The behavior of the infiltration can be treated in form three dimensional and time in its most complex, and depending on what is required even in its one-dimensional form most the temporal component. In this work Richards's equation diminishes to his expression unidimensional, more his temporary component and is solved under the method of finite differences using Crank-Nicolson's, scheme in an implicit alternate exact scheme, in the second order both in space and in time. The above mentioned scheme was codified in MATLAB, and the results fulfill satisfactorily the aim to predict the movement of the water in the subsoil, from information of physical properties of the soils and well conditions type dirichlet of water over on the soil. Likewise the model is very versatile, since it allows to establish the user, conditions as total depth of simulation, spacing between knots and intervals of calculation for the temporary variable. In case of the model of Smith-Parlange (1978), it was solved using the algorithm of Newton Raphson, the same one who also was implemented in a computational code in MATLAB, throwing satisfactory results similar to those of the previous model. Likewise, I elaborate a computational code to resolve the Model Green Ampt (1911), doing the comparison of three mentioned models.

It has been estimated, the change in glacier area and volume using remote sensing tools, based on the processing and interpretation of images acquired from the ASTER sensor aboard the Terra satellite, being, the study area the glacier Champará, the studio period covers 2000 to 2010. The methodology used to estimate the glacier's surface area was used Normalized Difference Index of Snow (NDSI) and the Index Normalized Difference Water (NDWI), which serves to remove water that initially pro glacier ice is considered. Based on this methodology can be seen, a gradual variation of the Glacier area Champará, which shows a 64% reduction from 1975 to present. The average exchange rate for the period 2000-2010 is 1.03km2/año. The variation of the volume of the glacier for the period 2000-2010 the glacier Champará was determined from the empirical equations proposed by BARTH and MEIER, (1997) and digital elevation models generated from the ASTER image of the bands 3N and 3B.

In this article we will describe the information extraction from satellite image, the importance of image quality in satellite image. In this paper we will study in more detail the artifacts and their influence on the information extraction from satellite images. In a remote sensing system, although, the images are very important, but more important is the information that we can extract from them to interpret and apply this information in different fields. In this sense, the image quality plays an important role. If we want to get the biggest and most important amount of information from the image, we need to have a good image quality. The main objective of any remote sensing system is the use of information that we can extract from the images, this includes detection, measurement, identification and interpretation of different targets. Targets in remote sensing images may be any feature, object, texture, shape, structure, spectrum or land covers which are in the image. Remote sensing process and analysis could be performed manually or automatically, actually, there are many research groups that develop different tools for detect, identify, extract information and interpret targets without manual intervention by a human interpreter.

This paper tries to determine the origin of springs on the beach Costa Verde, located in the district of Barranco, Miraflores and Magdalena province of Lima, Peru. These springs, near and at sea level, survive the process of urbanization of agricultural land, started in the early 70s, which decreased the water table aquifer of Lima, and wiped the water leaks into the cliffs. To identify the source isotope physical, chemical and bacteriological of samples taken from five springs analysis has been carried out. The conductivity and temperature, measured in situ, are similar to those obtained on Lima aquifer waters. The laboratory analysis showed no significant signs of total or fecal coliform, discarding possible leakage from sewerage Lima. The water isotopic concentrations on springs differ from the average obtained on Lima aquifer waters, recharged by infiltration of the Rimac River. These results suggest that the water from the springs of Costa Verde come from a direct recharge in the basin of the river, due to infiltration of rainfall or river at an altitude of about 3600 m.