RESUMEN
To evaluate the effect of electron beam (EB) irradiation on IgG binding capacity and conformation of tropomyosin in shrimp (Solenocera melantho), shrimp meat was irradiated with different doses (0, 1, 3, 5, 7, 9â¯kGy) of EB. IgG binding capacity of TM from shrimp meat was detected by western blot and indirect enzyme-linked immunosorbent assay. The conformation of TM was analyzed with circular dichroism and Fourier transform infrared spectroscopy. Results showed that there was a significant decrease in IgG binding capacity of TM from shrimp meat treated with EB irradiation, with the most significant effect observed at 7â¯kGy. At this dose, the IgG binding capacity of TM decreased by 59% when compared to the control group. The structural changes were consistent with changes in IgG binding capacity of TM. It was concluded that EB irradiation can reduce the immunoreactivity of shrimp TM by altering its structure.
Asunto(s)
Alérgenos/metabolismo , Irradiación de Alimentos/métodos , Inmunoglobulina G/metabolismo , Tropomiosina/química , Tropomiosina/metabolismo , Alérgenos/química , Alérgenos/inmunología , Animales , Western Blotting , Dicroismo Circular , Decápodos , Electrones , Ensayo de Inmunoadsorción Enzimática , Conformación Proteica , Conejos , Mariscos/efectos de la radiación , Espectroscopía Infrarroja por Transformada de Fourier , Tropomiosina/efectos de la radiaciónRESUMEN
On the basis of conservation of resources theory (Hobfoll, ) and the resource-gain-development perspective (Wayne, Grzywacz, Carlson, & Kacmar, ), this paper examines the differential impact of specific social resources (supervisory support and family support) on specific types of affect (job satisfaction and family satisfaction, respectively), which, in turn, influence work-to-family enrichment and family-to-work enrichment, respectively. A sample of 276 Chinese workers completed questionnaires in a three-wave survey. The model was tested with structural equation modelling. Job satisfaction at time 2 partially mediated the relationship between time 1 supervisory support and time 3 work-to-family enrichment (capital), and the effect of supervisory support on work-to-family enrichment (affect) was fully mediated by job satisfaction. Family satisfaction at time 2 fully mediated the relationship between time 1 family support and time 3 family-to-work enrichment (affect, efficiency). Implications for theory, practice and future research are discussed.
Asunto(s)
Familia/psicología , Satisfacción en el Trabajo , Satisfacción Personal , Apoyo Social , Lugar de Trabajo/psicología , Adolescente , Adulto , Pueblo Asiatico , China , Femenino , Humanos , Masculino , Modelos Teóricos , Encuestas y Cuestionarios , Trabajo , Adulto JovenRESUMEN
The study provided validity evidence for a fourfold taxonomy of work-family balance that comprises direction of influence (work to family vs. family to work) and types of effect (work-family conflict vs. work-family facilitation). Data were collected from 189 employed parents in China. The results obtained from a confirmatory factor analysis supported the factorial validity of the fourfold taxonomy of work-family balance with a Chinese sample. Child care responsibilities, working hours, monthly salary, and organizational family-friendly policy were positively related to the conflict component of work-family balance; whereas new parental experience, spouse support, family-friendly supervisors and coworkers had significant positive effects on the facilitation component of work-family balance. In comparison with the inconsistent effects of work-family conflict, work to family facilitation had consistent positive effects on work and life attitudes. The implications of findings in relation to China and other countries are discussed in the paper.
Asunto(s)
Adaptación Psicológica , Pueblo Asiatico/psicología , Empleo/psicología , Responsabilidad Parental , Administración del Tiempo , Adulto , China , Conflicto Psicológico , Análisis Factorial , Femenino , Humanos , Masculino , Modelos Psicológicos , Responsabilidad Parental/etnología , Responsabilidad Parental/psicología , Apoyo Social , Factores Socioeconómicos , Carga de TrabajoRESUMEN
This study investigated the feature of Chinese peoples' perception of SARS by surveying a stratified sample of 4231 people from 17 cities in China, and primarily proposed a risk perception centered predictive model of psychological behavior in crisis. The results indicated that, negative SARS-related information, especially information of personal interest, will arouse people's risk perception of high level, and lead to irrational nervousness or scare; but positive SARS-related information, including recovery information and that with measures taken by government, can decrease the level of risk perception. In the middle of May, people felt the highest level of risk on the SARS pathogens; the following are the physical health condition and infectivity after recovering from SARS; they are factors that need special attention. SEM result analyses supported our hypotheses in that SARS-related information affect people's coping behavior and mental health through their risk perception, the four indices of risk assessment, feeling of nervousness, coping behavior and mental health are effective presentimental indices for public psychological behavior in risky events.