The restructuring of the Chinese electricity sector in 2002 reshaped the market structure by vertically unbundling the dominant integrated firm and started the process of wholesale price liberalization. We estimate factor demands to study whether these reforms boosted productivity in the generation segment of the industry. Controlling explicitly for price-heterogeneity across firms and unobserv...

conclusions this study showed that 36% of the patients with mild tbi symptoms had mental health problems. given the high rates of psychologic disorders among patients with mild tbi, it is necessary to reduce the factors that caused the disorder. results a total of 286 patients, 79.7% males and 20.3% females with male to female ratio of 4:1, completed the study. female had significantly higher g...

the main purposes of this study were to investigate health problems and their associated risk factors among employees of iranian petrochemical industries. this cross-sectional study was carried out at 21 iranian petrochemical companies. study population consisted of 3580 workers (including 44.2% shift workers and 55.8% day workers). data on personal details, shift schedule and health problems w...

geological factors, such as damages, can cause health determinants in people, which were a little-studied and if they have been raised on occasion, usually referred to no communicable diseases. the aim of this work, which is a more or less updated bibliography, has been to develop a holistic idea for a better understanding of a problem and force latent or potential risk that they can carry and ...

Farming sturgeons is an economically important practice in a number of Asian and European countries. However, since it is not widely implementedin Turkey, fertilized eggs necessary for research and industrial activities are imported from Germany. Due to the interest of several fish farms in culturing sturgeon in Turkey and the lack of relevant data, this study investigated bacteria related heal...

The present study examined predictors of emotional problems amongst a nationally representative cohort of recent immigrants in Canada. Specifically, the effects of parenting status were examined given the association between parenting stress and mental health. Data came from the Longitudinal Survey of Immigrants to Canada (N = 7055). Participants were recruited 6-months post landing (2001-2002)...

BACKGROUND Pregnancy is life changing, making great demands on women to adapt physically, psychologically, and socially. Social relationships and the support that flow from these provide a critical role in managing health problems in pregnancy. Isolation and lack of care, in contrast, may lead women to experience increased distress during this time. OBJECTIVE This study aimed to explore South...

OBJECTIVE Brief, well-validated instruments are needed to facilitate screening for early childhood behavioral and emotional problems (BEPs). The objectives of this study were to empirically reduce the length of the Early Childhood Screening Assessment (ECSA) and to assess the validity and reliability of this shorter tool. METHODS Using caregiver ECSA responses for 2467 children aged 36 to 60 ...

Primary care physicians who work with children must deal with a great variety of behavioral and emotional problems. The system described in this article provides low-cost, standardized assessment and documentation of such problems and requires little effort by the physician. Primary care physicians are under increasing pressure to obtain standardized documentation for the conditions they encoun...