The purpose of this study was to examine the relationship between organizational health and student achievement of economically disadvantaged students in a large school district along the Texas-Mexico border that serves 99 % Hispanic students; districtwide approximately 95 % of the students are economically disadvantaged. All schools in the district are Title I schools and enroll 78%-100% economically disadvantaged students. About forty-eight percent (48.3 %) of students served are English Language Learners. Student achievement was determined using the State of Texas Assessment of Academic Readiness (STAAR) and organizational health was determined using an Organizational Health Inventory that measures the ten dimensions of organization-al health posited by Matthew Miles and operationalized by Marvin Fairman and Associates. The strength of the relationship was determined by using the Pearson correlation coefficient. The findings indicate that there is a positive relationship between student achievement in high poverty Hispanic schools and organizational health. The strongest relationship exists with the dimensions of goal focus, problem solving adequacy, and cohesiveness. Student achievement increases as the dimension of goal focus increases.
This study establishes the relationship between organizational health and student achievement in English Language Arts and Mathematics in grades 3-11. The purpose of this quantitative study was to assess the relationship between student achievement as measured by student performance in the State of Texas Assessment of Academic Readiness and organizational health. The Spearman Rho correlation coefficient was computed to determine the strength of the relationships between student achievement and the ten dimensions of organizational health. The findings indicated there was a positive relationship between student performance and the dimensions of organizational health with morale and goal focus exhibiting the greatest strengths.Key words: organizational health, dimensions, accountability, school culture, organizational culture
Las enfermedades cardiovasculares son la principal causa de morbimortalidad ocasionando 32 millones de defunciones por eventos coronarios, que abarcan entre el 40 y 70% de pérdidas fatales en los países desarrollados. Los factores de riesgo afectan a población cada vez más joven, tal es el uso de dispositivos electrónicos que aumentan el sedentarismo. El objetivo fue identificar la relación que existe entre las horas que pasan frente a dispositivos con el perímetro abdominal en universitarios del área de ciencias de la salud. Estudio observacional, transversal y analítico en estudiantes que cursaban el primer a tercer semestre en las licenciaturas del Área de Ciencias de la Salud, la muestra se integró por 251 estudiantes, se evaluaron datos sociodemográficos, nivel socioeconómico y la asociación de horas frente a dispositivos electrónicos con la Circunferencia de Cintura, específicamente el perímetro abdominal. Se observó una edad mínima de 18 y una máxima de 30 años, una media de 19.48, el sexo femenino, estado civil sin pareja, vivir con sus padres, sin dependientes económicos, procedencia de zona urbana, cursar el tercer semestre de licenciatura y no trabajar predominaron. Respecto al nivel socioeconómico predominante fue la clase alta (39.0%), dentro parámetros antropométricos el 24.5% de la población femenina presentó un perímetro abdominal con riesgo alto (14.9%) y muy alto (9.9%), mientras que los hombres el 12.5% riesgo alto y 8.8% riesgo muy alto. Por lo que el 23.6% de la población estudiantil presentaron un nivel alto (14%) y muy alto (9.6%) de riesgo derivado al aumento de circunferencia de cintura al estar frente a aparatos dispositivos electrónicos. El uso de dispositivos es cada vez más frecuente, derivado de múltiples tareas, excesivo uso de videojuegos, teléfonos celulares o televisión, lo que está generando menor práctica de actividad física, mayor aumento de perímetro abdominal, por ende, mayor predisposición a enfermedades cardiovasculares en edades más tempranas.
Crataegus Oxyacantha is used in the treatment of cardiovascular diseases. In related to your biosafety, only in vitro and in vivo genotoxicity of the fruit and the leaf is described, however, the teratogenic potential is unknown. The aim this study was evaluating the transplacental genotoxicity effect of aqueous and hydroalcoholic extract of leaves C. oxyacantha in a rat model and the quantification of malondialdehyde (MDA) in liver. Three different doses of the aqueous and hydroalcoholic extracts of the C. oxyacantha leaf were administered orally (500, 1000 and 2000 mg/kg) to Wistar rats during 5 days through the pregnancy term (16-21 days), sampling in rats were every 24 h during the last 6 days of gestation and only one sample was taken in neonates at birth. A sample of the mother's and neonate's liver was taken for the determination of MDA. The results show that, at the hepatic level, the evaluated doses of extracts C. oxyacantha in pregnant rats and their pups did not show cytotoxicity. However, the aqueous and hydroalcoholic extract generated cytotoxic and genotoxic damage in the short term. On the other hand, only the aqueous extract showed a teratogenic effect. Based on these results, the aqueous and hydroalcoholic extracts of the C. oxyacantha leaf should not be administered during pregnancy.
Crataegus oxyacantha is used in the treatment of cardiovascular diseases. The aim of this study was to evaluate the transplacental genotoxicity effect of aqueous (AE) and hydroalcoholic extract (HE) of leaves C. oxyacantha in a rat model and the quantification of malondialdehyde (MDA) in the liver. Three different doses of the AE and HE of the C. oxyacantha leaf were administered orally (500, 1000 and 2000 mg/kg) to Wistar rats during 5 days through the pregnancy term (16–21 days), and sampling in rats occurred every 24 h during the last 6 days of gestation, while only one sample was taken in neonates at birth. A sample of the mother’s and the neonate’s liver was taken for the determination of MDA. The results show that, at the hepatic level, the evaluated doses of extracts C. oxyacantha in pregnant rats and their pups did not show cytotoxicity. However, the AE and HE generated cytotoxic and genotoxic damage in the short term. On the other hand, only the AE showed a teratogenic effect. Based on these results, the AE and HE of the C. oxyacantha leaf should not be administered during pregnancy.
The use of plants has grown constantly worldwide, being a rich source of compounds that serve as established treatments for various diseases and conditions. This paper discusses the elemental composition and the level of environmental risk of heavy metals of selected medicinal plants. The extracts are investigated by energy dispersive X-ray fluorescence, a non-destructive, fast, multi-element, highly accurate and environmentally friendly analysis compared to other elementary detection methods. The studied plants Croton dioicus and Phoradendron villosum are native to Mexico. Both showed high levels of Cu and Ni, while their extracts present levels within the permissible range.
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