Factors that affect the development of the reading comprehension skill in students of seventh grade at Molino Sur School, during the II semester, 2016

Our topic is based on the factors that affect the development of the reading comprehension skill in students of seventh grade at Molino Sur School, during II semester, 2016. This research intends to get information about factors that affect reading comprehension skill in students of seventh grade and to suggest some strategies and techniques to improve that skill. The purpose of this research is to help the English teacher with some appropriate techniques and strategies to teach the reading comprehension skill, as a result, if she uses them in the correct way her students could reach an intellectual development in the reading comprehension of English texts. It is important to mention that some techniques and strategies require teaching materials such as: audio visual aids, worksheets, and work cards. All this resources facilitate the application of strategies and activities for developing reading comprehension skill in students, making English classes more interesting and funny for students. The motivation of students is stronger when teachers encourage them during their learning process by using interesting activities to teach the class, but in Molino Sur School the English teacher only uses traditional methods when she is teaching reading comprehension skill in seventh grade. For example: most of the activities used in the classroom are: writing on the board, listening to the teacher and repetition drills as: repeating a word and it meaning, sentences, and phrase

Incidencia de la Gestión en el Área Financiera de la Cooperativa Agropecuaria de Producción Mario Dávila Molina R.L, en el Municipio de San Isidro, Departamento de Matagalpa, en el I semestre del año 2014

La Gestión Financiera de las empresas muestra de forma muy significativa los cambios que se producen de manera inesperada, es por ello que el tema que hemos abordado en esta investigación es Gestiones en el Área Financiera de la Cooperativa Agropecuaria de Producción Mario Dávila Molina R.L, en el municipio de San Isidro, Departamento de Matagalpa, en el I semestre del año 2014. Este trabajo se realizó con el propósito de analizar la Incidencia de las Gestiones en el Área Financiera de la Cooperativa Agropecuaria de Producción Mario Dávila Molina R.L, en el municipio de San Isidro, Departamento de Matagalpa, en el I semestre del año 2014. Cabe señalar que la importancia de este tema permite conocer de manera más directa la situación en que la empresa se encuentra operando, mostrando el impacto que provocan los cambios que se generan debido al mal uso de las Finanzas. A pesar de las dificultades que se presentan en la cooperativa esta se encuentra operando por el bienestar de la sociedad, recibiendo financiamiento a corto plazo para atender la demanda del cultivo del arroz y buscando implementación de nuevas estrategias en la realización de sus gestiones para el desarrollo cooperativ

Population distribution models: species distributions are better modeled using biologically relevant data partitions

<p>Abstract</p> <p>Background</p> <p>Predicting the geographic distribution of widespread species through modeling is problematic for several reasons including high rates of omission errors. One potential source of error for modeling widespread species is that subspecies and/or races of species are frequently pooled for analyses, which may mask biologically relevant spatial variation within the distribution of a single widespread species. We contrast a presence-only maximum entropy model for the widely distributed oldfield mouse (<it>Peromyscus polionotus</it>) that includes all available presence locations for this species, with two composite maximum entropy models. The composite models either subdivided the total species distribution into four geographic quadrants or by fifteen subspecies to capture spatially relevant variation in <it>P. polionotus </it>distributions.</p> <p>Results</p> <p>Despite high Area Under the ROC Curve (AUC) values for all models, the composite species distribution model of <it>P. polionotus </it>generated from individual subspecies models represented the known distribution of the species much better than did the models produced by partitioning data into geographic quadrants or modeling the whole species as a single unit.</p> <p>Conclusions</p> <p>Because the AUC values failed to describe the differences in the predictability of the three modeling strategies, we suggest using omission curves in addition to AUC values to assess model performance. Dividing the data of a widespread species into biologically relevant partitions greatly increased the performance of our distribution model; therefore, this approach may prove to be quite practical and informative for a wide range of modeling applications.</p

Postmortem Interval Estimation and Validation Through a Comparative Study of South American Flies Reared in the Field Versus Laboratory Conditions

Estudios bajo temperaturas constantes son los más comunes para estimar el Intervalo Postmortem (IPM). Es imperativo que las ciencias forenses cuenten con datos de estudios llevados a cabo en el campo. Por ello, los objetivos de este trabajo son: (1) evaluar los parámetros (longitud, peso, tiempo de desarrollo) asociados a los ciclos vitales de las moscas Lucilia ochricornis (Wiedemann) (Diptera: Calliphoridae) y Lucilia purpurascens (Walker) bajo condiciones experimentales en el campo considerando temperaturas fluctuantes, y (2) comparar estos resultados con aquellos ya conocidos y publicados por los mismos autores para cultivos realizados en laboratorio bajo temperaturas constantes; lo cual nos permitirá contrastar las metodologías existentes más utilizadas de aplicación forense en la estimación del intervalo postmortem mínimo (IPMmin). Para cada estación del año, se realizaron cultivos de ambas especies en el campo colectando información de temperatura, humedad y fotoperíodo para realizar cultivos en laboratorio, comparándose posteriormente: tiempo de desarrollo, longitud, peso y los Grado-Hora Acumulados (GHA) en ambos tipos de cultivo. Se obtuvieron métodos de estimación del IPM y se los validó con la información de los cultivos realizados en campo. Los dos tipos de cultivos mostraron diferencias entre sí para ambas especies. Los métodos de uso forense para estimar el IPM aumentaron su precisión cuando se usaron datos de longitud larval máximos, asimismo se concluyó que los estadios larvales alimentarios son los más precisos para ser usados en la realización de estimaciones debido a que la larva está creciendo. La estimación del IPM a través del uso del desarrollo de moscas necrófagas sigue siendo fiable para la obtención del IPMmin.Studies under constant temperatures are the most common to estimate the Postmortem Interval (PMI). It is imperative that forensic sciences have data from studies carried out in the field. Therefore, this work aims to: (1) evaluate the parameters (weight, length, development time) associated with the life cycles of Lucilia ochricornis (Wiedemann) (Diptera: Calliphoridae) and Lucilia purpurascens (Walker) under experimental conditions in the field considering fluctuating temperatures, and (2) compare these results with those known and published by the same authors for cultures realized in the laboratory under constant temperatures; which will permit us to contrast the most widely used existing methodologies for forensic application in estimating the minimum postmortem interval (PMImin). For each season of the year, cultures of both species were made in the field, collecting information on temperature, humidity, and photoperiod to perform laboratory cultures, later comparing: development time, length, weight, and Accumulated Degree-Hours (ADH) in both types of cultures. Methods for estimating the PMI were obtained and validated with the information of the cultures grown in the field. The two types of cultures showed differences between each other for both species. The forensic use methods to estimate PMI were enhanced and their precision increased when maximum larval length data were used, and it was also concluded that feeding larval stages are the most accurate to be used in making estimates because the larva is growing. The estimation of the PMI through the use of necrophagous flies development remains reliable for obtaining the PMImin.Fil: Acosta, Ximena Gisela del Milagro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Instituto para el Estudio de la Biodiversidad de Invertebrados; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Entomología Aplicada y Forense; ArgentinaFil: Corronca, Jose Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Instituto para el Estudio de la Biodiversidad de Invertebrados; ArgentinaFil: Gonzalez Reyes, Andrea. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; ArgentinaFil: Centeno, Néstor Daniel. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Entomología Aplicada y Forense; Argentin

Impact of oak wood ageing modalities on the (non)-volatile composition and sensory attributes of red wines

During fermentation or ageing of wines, oak wood is commonly used in form of barrels, casks or derived oak products (chips, winewoods, tankstaves, among others). It is well known that aroma, structure, astringency, bitterness, aromatic persistence and colour may change as a result of wine-wood contact. A full-scale experimentation was performed under different oak ageing conditions in order to evaluate colour, phenolic, aromatic and sensory differences among final red wines (9-months ageing). Oenological parameters and wine colour were not impacted by ageing modality. At the end of ageing, no differences were found in total phenolic and tannin contents. Regardless of the ageing modality, total content and profile of fruity volatiles were globally maintained with regard to control (? 86 %). In contrast, the higher the surface of wine-wood contact per unit of wine volume, the greater the extraction of woody aromas. Thus, barrels led to wines with the highest level of woody aromas (515-864 ?g/L), followed by cask modalities (430-470 ?g/L). From a sensory point of view, descriptors highlighting the woody character of wine (vanilla, spicy) were enhanced in all oak-aged wines when compared to control. However, our results indicate that a masking effect of fruity aroma by oak wood did not occur, since all modalities were perceived as fruity as the control. Thus, each oak ageing modality may lead to wines with a different woody character, without no impact on fruity perception, allowing wineries to achieve the targeted aromatic profile, good structure and just the right balance between fruity and woody aromas

3D numerical simulation of slope-flexible system interaction using a mixed FEM-SPH model

Flexible membranes are light structures anchored to the ground that protect infrastructures or dwellings from rock or soil sliding. One alternative to design these structures is by using numerical simulations. However, very few models were found until date and most of them are in 2D and do not include all their components. This paper presents the development of a numerical model combining Finite Element Modelling (FEM) with Smooth Particle Hydrodynamics (SPH) formulation. Both cylindrical and spherical failure of the slope were simulated. One reference geometry of the slope was designed and a total of 21 slip circles were calculated considering different soil parameters, phreatic level position and drainage solutions. Four case studies were extracted from these scenarios and simulated using different dimensions of the components of the system. As a validation model, an experimental test that imitates the soil detachment and its retention by the steel membrane was successfully reproduced.The FORESEE project has received funding from the EuropeanUnion’s Horizon 2020 research and innovation program undergrant agreement No 769373

3D numerical simulation of slope-flexible system interaction using a mixed FEM-SPH model

Flexible membranes are light structures anchored to the ground that protect infrastructures or dwellings from rock or soil sliding. One alternative to design these structures is by using numerical simulations. However, very few models were found until date and most of them are in 2D and do not include all their components. This paper presents the development of a numerical model combining Finite Element Modelling (FEM) with Smooth Particle Hydrodynamics (SPH) formulation. Both cylindrical and spherical failure of the slope were simulated. One reference geometry of the slope was designed and a total of 21 slip circles were calculated considering different soil parameters, phreatic level position and drainage solutions. Four case studies were extracted from these scenarios and simulated using different dimensions of the components of the system. As a validation model, an experimental test that imitates the soil detachment and its retention by the steel membrane was successfully reproduced

Programming The Inverse Thermal Balance For A Bagasse-Fired Boiler, Including The Application Of A Optimization Method In MATLAB

Thermal balance of steam boilers can be done by two ways, the direct or indirect method; the direct method is not accurate. The reason why it is not accurate is that some operating parameters of biomass boilers cannot be obtained by direct measurements, like the measurement of fuel flow. These facts make it difficult to apply the direct method in the heat balance and force to use indirect one to determine these parameters and the boiler efficiency; hence, the indirect method is generally used for heat balance. Indirect method provides more accurate values and additionally, quantifies each of the energy losses, allowing to determinate causes of low efficiency of the equipment. Large amount of data involved implies the use of more affective calculation means; being iterative, assumed values for fuel flow must be compared with a value calculated until both match. In this work, the indirect method has been programmed in MATLAB; and for the preliminary fuel flow evaluation an optimization method could be used to prevent having to assume a value. Calculation details and a MATLAB algorithm are also presented

Sparse multinomial kernel discriminant analysis (sMKDA)

Dimensionality reduction via canonical variate analysis (CVA) is important for pattern recognition and has been extended variously to permit more flexibility, e.g. by "kernelizing" the formulation. This can lead to over-fitting, usually ameliorated by regularization. Here, a method for sparse, multinomial kernel discriminant analysis (sMKDA) is proposed, using a sparse basis to control complexity. It is based on the connection between CVA and least-squares, and uses forward selection via orthogonal least-squares to approximate a basis, generalizing a similar approach for binomial problems. Classification can be performed directly via minimum Mahalanobis distance in the canonical variates. sMKDA achieves state-of-the-art performance in terms of accuracy and sparseness on 11 benchmark datasets