Propuesta didáctica para la comprensión crítica en la Universidad La Gran Colombia

El presente artículo muestra parte de un trabajo investigativo que actualmente se adelanta sobre el desarrollo de la comprensión crítica en los estudiantes de la Licenciatura en Lingüística y Literatura y de primer semestre de otros programas académicos de la Universidad La Gran Colombia. Su objetivo es proponer estrategias didácticas para realizar una lectura crítica. Por esta razón, se expone el recorrido teórico-metodológico que se ha realizado para crear dichas prácticas, en la primera parte, se revisa de modo introductorio la problemática que gira alrededor de la comprensión lectora, en segundo lugar, se presenta el marco referencial, que expone distintas perspectivas de la lectura como concepto científico. Acto seguido, se relaciona un aspecto fundamental para el progreso de la indagación que tiene que ver con la incorporación del Análisis Crítico del Discurso y su relación adyacente con el conocimiento de las realidades presentes en los textos. Finalmente, se registran algunos avances metodológicos sobre la posibilidad, proyección y necesidad de fomentar este tipo de práctica lectora en el aula universitaria

Producción de ovinos en un sistema silvopastoril en la Sierra de Huautla, Morelos, México

Se evaluó la carga animal y densidad de plantación de Leucaena leucocephala y Panicum máximum var. Massai en un sistema silvopastoril, a través de cantidad y calidad de forraje ofrecido y ganancia diaria de peso de ovinos en tres ciclos de pastoreo, con 6250, 3928 y 2050 plantas de leucaena ha-1 con 375, 268 y 150 ovinos ha-1 respectivamente, con tres repeticiones. El forraje ofrecido de leucaena fue mayor (p0.05). El grado de cosecha fue semejante (p>0.05) entre densidades y ciclos. La digestibilidad de leucaena fue semejante entre ciclos y densidades (p>0.05), la del massai fue semejante entre densidades (p>0.05) y la menor en el primer ciclo (p0.05).Stocking rate and planting density of Leucaena leucocephala and Panicum maximum var. Massai in a silvopastoral system, through quantity and quality of forage offered and daily gain of sheep in three grazing cycles, with 6250, 3928 and 2050 gourd plants ha-1 with 375, 268 and 150 sheep ha-1 respectively with three replications. The leucaena forage offered was higher (p0.05). The level of harvest was similar (p>0.05) between densities and cycles. The digestibility of leucaena was similar between cycles and densities (p> 0.05), the massai was similar between the densities (p>0.05) and lowest in the first cycle (p 0.05).Eje A4: Ambiente, Naturaleza y AgroecologíaFacultad de Ciencias Agrarias y Forestale

Producción de ovinos en un sistema silvopastoril en la Sierra de Huautla, Morelos, México

Se evaluó la carga animal y densidad de plantación de Leucaena leucocephala y Panicum máximum var. Massai en un sistema silvopastoril, a través de cantidad y calidad de forraje ofrecido y ganancia diaria de peso de ovinos en tres ciclos de pastoreo, con 6250, 3928 y 2050 plantas de leucaena ha-1 con 375, 268 y 150 ovinos ha-1 respectivamente, con tres repeticiones. El forraje ofrecido de leucaena fue mayor (p0.05). El grado de cosecha fue semejante (p>0.05) entre densidades y ciclos. La digestibilidad de leucaena fue semejante entre ciclos y densidades (p>0.05), la del massai fue semejante entre densidades (p>0.05) y la menor en el primer ciclo (p0.05).Stocking rate and planting density of Leucaena leucocephala and Panicum maximum var. Massai in a silvopastoral system, through quantity and quality of forage offered and daily gain of sheep in three grazing cycles, with 6250, 3928 and 2050 gourd plants ha-1 with 375, 268 and 150 sheep ha-1 respectively with three replications. The leucaena forage offered was higher (p0.05). The level of harvest was similar (p>0.05) between densities and cycles. The digestibility of leucaena was similar between cycles and densities (p> 0.05), the massai was similar between the densities (p>0.05) and lowest in the first cycle (p 0.05).Eje A4: Ambiente, Naturaleza y AgroecologíaFacultad de Ciencias Agrarias y Forestale

NanoFS: a hardware-oriented file system

NanoFS is a novel file system for embedded systems and storage-class memories (like flash) and is specially designed to be directly implemented in hardware. NanoFS is based on an original internal layout intended to achieve an optimal hardware implementation of the file system’s file lookup and data fetch operations. File system spe-cification on a sample reader module completely implemented in a pro-grammable device is introduced

Minimalistic SDHC-SPI hardware reader module for boot loader applications

This paper introduces a low-footprint full hardware boot loading solution for FPGA-based Programmable Systems on Chip. The proposed module allows loading the system code and data from a standard SD card without having to re-program the whole embedded system. The hardware boot loader is processor independent and removes the need of a software boot loader and the related memory resources. The hardware overhead introduced is manageable, even in low-range FPGA chips, and negligible in mid- and high-range devices. The implementation of the SD card reader module is explained in detail and an example of a multi-boot loader is offered as well. The multi-boot loader is implemented and tested with the Xilinx's Picoblaze microcontroller

On-Offer and Residual Forage in a Massai-\u3cem\u3eLeucaena\u3c/em\u3e Pasture at Different Leucaena Density

Mexican livestock producers in tropical areas are increasingly interested on the establishment of silvopastoral systems based on Leucaena (Leucaena leucocephala (Lam.) de Wit) and different tropical grasses as the Massai grass (Panicum maximum cv Massai); among questions raised on this is the importance of Leucaena density in relation to forage available. Then the objective of the study was to determine total and by species on-offer and residual forage in a grazed MassaiLeucaena pasture with different Leucaena density

Ewe Daily-Weight Gain Grazing \u3ci\u3eLeucaena leucocephala-Megathyrsus maximus\u3c/i\u3e CV Mombasa Silvopastoral System and Tropical Native Unimproved Range

Silvopastoral systems are a viable option to increase livestock productivity, The silvopastoral arrangement of Leucaena leucocephala associated with Megathyrsus maximus CV Mombasa (LMS) is successfully cultivated in tropical environments.. The objective of the study was to determine ewe daily-weight gain grazing LMS and a tropical unimproved native range. Two LMS were tested: high and low leucaena densities, 4700 and 2383 plants/ha, respectively. Grazing was rotational, lasted 150 d (rainy season) at equivalent stocking rate of 59 ewes/ha/150 d. Experimental design was a completely random design with three replications, the experimental unit was a 192 m2 plot. Variables measured on plots were amount (dry matter basis), in vitro dry matter digestibility (IVDMD), and crude protein (CP) of forage on-offer, from mixed samples herbaceous and tree fodder. Weight and serum concentrations of Ca, P, K, Mg, Na, Zn, Cu, and Fe were measured in ewes, daily weight gain was calculated. On average forage on-offer and IVDMD concentration were 50 and 15% higher (p \u3c 0.05) in LMS than in native range, respectively, with no difference between LMS. CP concentration was 25% higher (p \u3c 0.05) in native range than both LMS, with no difference between them. LMS’s showed no difference (p \u3e 0.05) between them on ewe daily weight gain, on average 59.2 g, and were higher than native range where ewes showed a mean daily weight loss of 14.8 g. Serum concentrations of the 8 minerals measured were similar (p \u3e 0.05) across all ewes regardless the treatments. It was concluded that the Leucaena leucocephala-Megathyrsus maximus CV Mombasa silvopastoral system is an option to improve livestock productivity compared with unimproved native range due to higher forage on-offer

Ewe Daily-Weight Gain Grazing \u3ci\u3eLeucaena leucocephala-Megathyrsus maximus\u3c/i\u3e CV Mombasa Silvopastoral System and Tropical Native Unimproved Range

Silvopastoral systems are a viable option to increase livestock productivity, The silvopastoral arrangement of Leucaena leucocephala associated with Megathyrsus maximus CV Mombasa (LMS) is successfully cultivated in tropical environments.. The objective of the study was to determine ewe daily-weight gain grazing LMS and a tropical unimproved native range. Two LMS were tested: high and low leucaena densities, 4700 and 2383 plants/ha, respectively. Grazing was rotational, lasted 150 d (rainy season) at equivalent stocking rate of 59 ewes/ha/150 d. Experimental design was a completely random design with three replications, the experimental unit was a 192 m2 plot. Variables measured on plots were amount (dry matter basis), in vitro dry matter digestibility (IVDMD), and crude protein (CP) of forage on-offer, from mixed samples herbaceous and tree fodder. Weight and serum concentrations of Ca, P, K, Mg, Na, Zn, Cu, and Fe were measured in ewes, daily weight gain was calculated. On average forage on-offer and IVDMD concentration were 50 and 15% higher (p \u3c 0.05) in LMS than in native range, respectively, with no difference between LMS. CP concentration was 25% higher (p \u3c 0.05) in native range than both LMS, with no difference between them. LMS’s showed no difference (p \u3e 0.05) between them on ewe daily weight gain, on average 59.2 g, and were higher than native range where ewes showed a mean daily weight loss of 14.8 g. Serum concentrations of the 8 minerals measured were similar (p \u3e 0.05) across all ewes regardless the treatments. It was concluded that the Leucaena leucocephala-Megathyrsus maximus CV Mombasa silvopastoral system is an option to improve livestock productivity compared with unimproved native range due to higher forage on-offer

Automated performance evaluation of skew-tolerant clocking schemes

In this paper the authors evaluate the timing and power performance of three skew-tolerant clocking schemes. These schemes are the well known master–slave clocking scheme (MS) and two schemes developed by the authors: Parallel alternating latches clocking scheme (PALACS) and four-phase parallel alternating latches clocking scheme (four-phase PALACS). In order to evaluate the timing performance, the authors introduce algorithms to obtain the clock waveforms required by a synchronous sequential circuit. Separated algorithms were developed for every clocking scheme. From these waveforms it is possible to get parameters such as the non-overlapping time and the clock period. They have been implemented in a tool and have been used to compare the timing performance of the clocking schemes applied to a simple circuit. To analyse the power consumption the authors have electrically simulated a simple circuit for several operation frequencies. The most remarkable conclusion is that it is possible to save about 50% of the power consumption of the clock distribution network by using PALACS.Ministerio de Ciencia y Tecnología TEC 2004-00840/MI