Evaluation of two rotational helmet technologies to decrease peak rotational acceleration in cycling helmets.

The risk of brain trauma has been associated with the rotational kinematics leading to the development of helmets with a variety rotational management technologies. The purpose of this paper was to employ a rotation specific test protocol to evaluate the effectiveness of two of these technologies. Dynamic response of the head was measured to assess the performance of each technology. Three cycling helmets with identical construction were included in this study. One helmet with no rotational technology, an established, commercial technology and a novel helmet rotational technology designed and assembled by the authors were tested. A drop test onto a 45° anvil was used to measure the ability of each helmet to manage the dynamic response of the head form during a series of impacts. The results revealed both rotational helmet technologies resulted in lower peak rotational acceleration and brain strain, however each technology demonstrated unique performance characteristics depending on the impact condition.

Evaluating the Wizards of Motion Cardiovascular Disease Prevention Module.

This study evaluated the level of change in students' knowledge of and attitudes toward healthy lifestyle behaviors and prevention of cardiovascular disease (CVD) following implementation of a Cardiovascular Disease Prevention Module in Grade 5 science classes. Two classes of students ( n1 = 39) were identified as the intervention group and two classes ( n2 = 31) were designated as controls. The intervention group participated in the module initially, whereas the control groups participated after the data collection was completed. A two-group, pre-post comparison design was used to evaluate results on both a knowledge test and an attitude questionnaire. The results indicated that although both the intervention and the control groups began with similar knowledge and attitudes toward CVD and healthy behaviors, the intervention group demonstrated an improved level of knowledge and attitudes. Further research is needed to determine whether this CVD module could provide a sustained impact on adoption of healthy behaviors among adolescents.

Desarrollo moral en estudiantes de odontología moral / Moral development in dentist students

En el presente trabajo se estudió el nivel de desarrollo moral en estudiantes de Odontología de una Universidad de la región capital de Venezuela. La muestra estuvo constituida por 192 estudiantes, 155 de género femenino y 37 de género masculino cursantes de primero y cuarto año de la carrera. Se utilizó una versión del instrumento Defining Issues Test -DIT- (Rest,1979) adaptado al contexto venezolano por Zerpa y Ramírez (2004). Los resultados sugieren que los estudiantes se encuentran preponderantemente en el nivel moral convencional o de mantenimiento de normas y han alcanzado niveles moderados de desarrollo moral de principios - índice P- (M = 27,45), no encontrándose diferencias entre cursantes de recién ingreso y terminales de la carrera. Un análisis de componentes principales (ACP) sugiere que las personas con mayor índice P, son de género femenino, con edades comprendidas entre 21 y 22 años y de nivel socio-económico bajo. Finalmente, con base en los resultados, se discuten algunas implicaciones para la creación de un eje de formación moral-educación en valores en la carrera de Odontología

The following essay assessed the level of moral development in Odontology students of a University in the capital region of Venezuela. The sample included 192 students, 155 female and 37 male, of the first and fourth year of their career. A version of the instrument Defining Issues Test -DIT- (Rest, 1979), adapted to the Venezuelan context by Zerpa and Ramirez, was used for this study. The results suggest that the students are preponderantly in the conventional moral level or obeying norms, and they have reached have reached moderate levels of moral development. P- Index (M = 27.45). No differences were found when comparing students who are at the beginning or at end of their career. An analysis of the principal components (ACP) suggests that the people with the higher P Index are female, with ages between 21 y 22 years and low social-economic level. Finally, based on the results, there is a debate regarding the implications of creating an axis of moral-education values development in the Odontology career