Classroom Assessment Thoughts, Skills, and Practices of Secondary School Mathematics Teachers: An In-Depth Analysis

The study sought to identify and evaluate the classroom assessment thoughts, practices, and skills of secondary mathematics teachers in Bulacan. The study revealed that there are no significant relationships between teachers’ thoughts of classroom assessments and practices, and classroom assessment practices and skills. However, there is significant relationship between teachers’ thoughts of classroom assessments and skills. There are no significant differences between the teachers’ thoughts of classroom assessments and their age, educational attainment, teaching experience, number of years in teaching mathematics and in-service training. There is a significant relationship between the teachers’ thoughts of classroom assessment and their classroom assessment skills. In the light of the findings, the researcher recommends that: Secondary mathematics teachers should adopt varied and innovative ways of assessing students’ learning in mathematics. School administrators should ensure that all teachers with appropriate certificates must take more training courses in assessment to improve their skills and use of desirable classroom assessment practices. Further research may focus on the relationship between mathematics teachers’ assessment skills and thoughts, practices and skills, and thoughts and practices

Análisis y planteamiento de los vacíos urbanos, en el sector Primavera, en la ciudad de Yurimaguas de Alto Amazonas 2020

La presente investigación busca validar vacíos urbanos en el sector primavera en la ciudad de Yurimaguas, por lo que primero se identificará espacios urbanos potenciales dentro del sector de estudio, para luego plantear nuevas estrategias proyectuales, enfocándonos en el vacío urbano con mejores aptitudes y genere beneficios directos en la población, es así que como metodología de investigación se elabora por un lado fichas de observaciones, en donde se calificará las condiciones actuales y por otro lado se realiza una encuesta en la que se identifique las necesidades de la población, obteniendo que la ciudad de Yurimaguas y en específico el sector primavera deben mejorar la ejecución de los planes de desarrollo urbano, en donde también se siente el malestar general en cuanto a la preservación de equipamientos y vías en la actualidad. Obteniendo que dichos vacíos urbanos tienen el potencial para una restructuración optima del sector, y que la población se encuentra disconforme con las gestiones urbanas actuales y que los planteamientos de mejora tienen una recepción positiva, ya que la población busca beneficios ambientales, sociales y económicos

Diseño geométrico y estructural de la carretera - Cachulla Alta y Baja – Chulite, Santiago de Chuco, La Libertad, 2021

La presente investigación se llevó a cabo en Santiago de Chuco, La Libertad; se propuso el diseño geométrico y estructural de la carretera Cachulla Alta y Baja – Chulite. Para poder desarrollar esta investigación se debió seleccionar esta carretera utilizando el método de inclusión, de tal manera que se escogió dicha carretera. Se emplearon 2 técnicas de recolección de información; de la misma manera se emplearon instrumentos como ficha resumen y guías de observación. El objetivo de la investigación fue realizar el diseño geométrico y estructural de la carretera Cachulla Alta y Baja, esto se debe a que estas localidades carecen de una adecuada via de transporte que sea segura. Los resultados obtenidos al realizar la investigación fueron: ancho de calzada de 6.60 m con carriles de 3.30 m cada uno, bermas de 1.20 m, pavimento de 0.08 m, base granular de 0.125 m y una sub base granular de 0.10 mThis research was carried out in Santiago de Chuco, La Libertad; the geometric and structural design of the Cachulla Alta y Baja - Chulite road was proposed. In order to develop this research, this road had to be selected using the inclusion method, so this road was chosen. Two data collection techniques were used; in the same way, instruments such as a summary sheet and observation guides were used. The objective of the research was to carry out the geometric and structural design of the Cachulla Alta and Baja roads, this is due to the fact that these localities lack an adequate and safe transportation route. The results obtained from the research were: roadway width of 6.60 m with lanes of 3.30 m each, berms of 1.20 m, pavement of 0.08 m, granular base of 0.125 m and a granular sub-base of 0.10 m.Tesi

The Unintended Consequences of the Restructuring of the Division of AIDS Services in New York City

The purpose of this study was to assess perceptions of the quality of services of consumers of the New York City Division of AIDS Services in restructured and pre-restructured agency settings A total of 447 consumers participated in the study. Data were collected through interviews conducted at DAS field sites around New York City between July and November of 1996, using a 77 item evaluation instrument developed by the researcher and staff from the Mayor\u27s Office on AIDS Policy Coordination On the three quality indicators, satisfaction with services, perception of the effectiveness of the caseworker, and perception of the helpfulness of the caseworker, there were no significant differences between restructured and pre-restructured sites when background factors were controlled. The failure of the restructuring effort was attributed to lack of inclusion of all stakeholders in the planning proces

Sistemas constructivos no convencionales y condiciones habitables en las viviendas del Barrio 4A, Alto Trujillo, El Porvenir, Trujillo, 2021

La problemática de las condiciones habitables deficientes y los sistemas constructivos empleados de forma inadecuada, esto vinculado a sus carentes ingresos económicos, el cual no les permite acceder a construcciones convencionales, por lo cual conlleva a la población construir con materiales de baja calidad y esto se demuestra en las malas construcciones de sus viviendas. con la finalidad de plantear una alternativa con un sistema constructivo se formuló el siguiente objetivo: Determinar el sistema constructivo no convencional de bajos costos que contribuya a mejorar las condiciones habitables de las viviendas del Barrio 4 A, Alto Trujillo, El Porvenir. Fue de enfoque cuantitativo de diseño no experimental, se desarrolló una muestra de 88 viviendas y como muestreo el método probabilístico aleatorio simple, se usó como técnicas: la encuesta, ficha de observación y entrevista, se emplearon tablas de contingencia. Los resultados mostraron, que las viviendas del sector no son completamente habitables, debido al estado y no mostrar condiciones mínimas de habitabilidad, en cuanto a área construida, resistencia, tipo de material, cantidad de ambientes y confort habitacional. Se concluye que el sistema constructivo no convencional vivienda contenedor, brinda mejores beneficios tanto de costo, tiempo de ejecución, resistencia, confort, acabados

Prototipo de trabajo práctico experimental en la demostración del principio de Pascal

En este artículo se analizan conceptos y teoremas del cálculo integral y vectorial para la demostración del principio de Pascal, cuyo propósito es la elaboración de un prototipo experimental para aplicar el cálculo de presión de fluidos con integrales; dicho artefacto será de utilidad para futuros investigadores y estudiantes universitarios que deseen demostrar diferentes principios físicos a través de la experimentación. El enfoque de esta investigación es cualitativo y de tipo descriptivo, porque permite interpretar, recolectar y analizar conceptos y teoremas referentes al cálculo matemático donde se suministró una rúbrica de evaluación para el trabajo desarrollado por los 41 estudiantes participantes de la carrera de Física-Matemática de la UNAN-Managua, FAREM-Estelí. Este estudio utilizó el método inductivo, útil en el ámbito científico por su flexibilidad y porque permite la exploración de conocimientos teniendo en cuenta el paradigma interpretativo, prestándose para las predicciones, en este caso la experimentación. Para la recolección de la información se utilizó una Ficha de registro de datos para análisis documental. Los resultados confirman que es posible dar una demostración práctica del principio de pascal a partir de una fundamentación teórica y construcción de prototipos. Se concluye que este proceso de investigación fortalece la formación académica, el pensamiento lógico y crítico para relacionar la teoría con la práctica a partir de la construcción de dispositivos referente al principio de Pascal

Robust efficiency and actuator saturation explain healthy heart rate control and variability

The correlation of healthy states with heart rate variability (HRV) using time series analyses is well documented. Whereas these studies note the accepted proximal role of autonomic nervous system balance in HRV patterns, the responsible deeper physiological, clinically relevant mechanisms have not been fully explained. Using mathematical tools from control theory, we combine mechanistic models of basic physiology with experimental exercise data from healthy human subjects to explain causal relationships among states of stress vs. health, HR control, and HRV, and more importantly, the physiologic requirements and constraints underlying these relationships. Nonlinear dynamics play an important explanatory role––most fundamentally in the actuator saturations arising from unavoidable tradeoffs in robust homeostasis and metabolic efficiency. These results are grounded in domain-specific mechanisms, tradeoffs, and constraints, but they also illustrate important, universal properties of complex systems. We show that the study of complex biological phenomena like HRV requires a framework which facilitates inclusion of diverse domain specifics (e.g., due to physiology, evolution, and measurement technology) in addition to general theories of efficiency, robustness, feedback, dynamics, and supporting mathematical tools

The herpetofauna of Hidalgo, Mexico: Composition, distribution, and conservation status

The herpetofauna of Hidalgo, Mexico, is comprised of 203 species, including 42 anurans, 17 caudates, one crocodylian, 137 squamates, and six turtles. Here, the distribution of the herpetofaunal species are catalogued among the four recognized physiographic regions. The total number of species varies from 77 in the Mexican Plateau to 166 in the Sierra Madre Oriental. The individual species occupy from one to four regions (mean = 2.1). About 69% of the Hidalgo herpetofauna is found in only one or two of the four regions, which is of considerable conservation significance. The greatest number of single-region species occupies the Sierra Madre Oriental (25), followed by the Gulf Coastal Lowlands (15), the Trans-Mexican Volcanic Belt (6), and the Mexican Plateau (2). The Coefficient of Biogeographic Resemblance (CBR) indicates that the Sierra Madre Oriental and the Gulf Coastal lowlands share the most species (72), because of their adjacent geographic position and they contain a significant number of generalist species that occur in the Gulf lowlands of Mexico, southern USA, Central America, and/or South America. The two largest geographic regions in Hidalgo by area, Sierra Madre Oriental and Mexican Plateau, reflect opposite patterns in species richness (166 and 77 species, respectively) due to overall differences in the ecological characteristics between them. A similarity dendrogram based on the Unweighted Pair Group Method with Arithmetic Averages (UPGMA) depicts two distinct clusters, one between the Sierra Madre Oriental and Gulf Coastal Lowlands and the other between the Mexican Plateau and Trans-Mexican Volcanic Belt. The former cluster reflects the two regions sharing a substantial number of herpetofaunal species that occur on the Gulf lowlands of North America and Central America, as well as a few that enter South America. The second cluster is due to the two montane regions being adjacent to one another and their ecological similarities. With respect to the distributional categories, the largest number of species is that of the country endemics (104 of 203), followed by non-endemics (92), state endemics (four), and non-natives (three). The principal environmental threats to the Hidalgo herpetofauna are deforestation, livestock, roads, pollution of water sources, cultural factors, and diseases. The conservation status of each native species was assessed by means of the SEMARNAT (NOM-059), IUCN, and EVS systems, of which the EVS system was the most useful. The Relative Herpetofaunal Priority (RHP) method was also used to designate the rank order significance of the physiographic regions and the highest values were found for the Sierra Madre Oriental. Most of the five protected areas in Hidalgo are located in the Trans-Mexican Volcanic Belt, which is only the second most important region from a conservation perspective. In addition, only 78 of the 200 native species found in Hidalgo are recorded in total from the five protected areas. Finally, a set of conclusions and recommendations are offered for the future protection of the Hidalgo herpetofauna