on utilizing the spectral representation of selfadjoint operators in hilbert spaces, some error bounds in approximating $n$-time differentiable functions of selfadjoint operators in hilbert spaces via a taylor's type expansion are given.

Because of China's increasing industrialization over the past two decades, many rural residents have migrated to urban areas but frequently return to visit their home villages. These rural-to-urban migrants are generally young, are better educated than non-migrating rural residents but less educated than their urban counterparts, are most likely employed in venues such as construction sites, fa...

BACKGROUND Preventive health services (PHSs) form part of primary healthcare with the aim of screening to prevent disease. Migrants show significant differences in lifestyle, health beliefs and risk factors compared with the native populations. This can have a significant impact on migrants' access to health systems and participation in prevention programmes. Even in countries with widely acces...

BACKGROUND Prevalence of infectious diseases in migrant populations has been addressed in numerous studies. However, information is sparse on their mortality due to chronic diseases that are aetiologically associated with an infectious agent. This study investigates mortality related to infectious diseases with a specific focus on cancers of possibly infectious origin in voluntary migrants from...

INTRODUCTION The urbanisation process has been associated with increases in asthma prevalence in urban and rural areas of low-income and middle-income countries (LMICs). However, although rural to urban migration and migration between cities are considered important determinants of this process, few studies have evaluated the effects of internal migration on asthma in urban populations of LMICs...

BACKGROUND Poles constitute the largest group of migrants in Norway. Research confirms a steady inflow and a minimal outflow of Polish migrants. One of the key aspects of migrants' structural integration is access to health care services. This study explored barriers to and facilitators of Polish migrants' access to Norwegian health care services. METHODS A qualitative interview-based study w...

BACKGROUND International migrants experience increased mortality from hepatocellular carcinoma compared to host populations, largely due to undetected chronic hepatitis B infection (HBV). We conducted a systematic review of the seroprevalence of chronic HBV and prior immunity in migrants arriving in low HBV prevalence countries to identify those at highest risk in order to guide disease prevent...

We discuss a mathematical model of migration channel based on the truncated Waring distribution. The truncated Waring distribution is obtained for a more general model of motion of substance through a channel containing finite number of boxes. The model is applied then for case of migrants moving through a channel consisting of finite number of countries or cities. The number of migrants in the...

The determinants of the decision to naturalize for first and second generation "Iabor migrants" in Germany are examined. We assume that Turkish migrants' comparatively high naturalization rate cannot be explained by the legal advantages they gain by naturalizing. We argue instead that naturalization offers an opportunity for individual upward mobility to Turkish migrants who have achieved a hig...

We show that refugees can play positive roles in receiving economies by looking at the partition of India. We use an instrumental variables (IV) strategy to show that migrants played a major part in India’s take-up of jute cultivation. Our estimates suggest that migrants fully explain post-partition jute cultivation. Consistent with migrants bringing jute-specific skills with them, we find that...