Major opsin (LW Rh) DNA sequence has been reported to provide useful data for resolving phylogenetic relationships among tribes of corbiculate bees based on analyses of 502 bp of coding sequence. However, the corbiculate tribes are believed to be of Cretaceous age, and strong support for insect clades of this age from small data sets of nucleotide sequence data has rarely been demonstrated. To ...

This paper presents an approach for estimating the impact of migrant workers on wage of native workers. If a particular group of native workers is replaced by migrant workers, the wages of the native workers will decline. The reduction of the wages of native workers may depend on how easily their jobs can be taken to migrant workers. Second, if migrant workers complement a particular group of n...

China is experiencing an unprecedented urban revolution, with massive ruralto-urban migration. Owing to the discriminatory hukou system, millions of migrants are excluded from accessing subsidized housing and suffer severe housing poverty. How to provide decent and affordable housing to migrants is an unprecedented challenge in China. In this paper we aim to scrutinize the current migrant housi...

Introduction. The objectives of this work were to highlight the evolutionary stages formation research views Valentin Vasilyevich Sedov, a well-known scientist, historian and archaeologist who devoted himself study origin ants. Materials methods. relevance appeal topic is due special place occupied among world civilizations, culture traditions West East. Results. An interesting interweaving des...

The 136 Water-Land paintings from Baoningsi, now at the Shanxi Museum in Taiyuan, China, are a set of hanging scrolls Ming dynasty that have been preserved almost completely. In addition, three documents related to survive: two records on repairs made Jianshen Year Kangxi Emperor’s reign (1704) and twentieth year Jiaqing (1815), list patrons who contributed repair. Although previous studies onl...

BACKGROUND The objective of this study is to investigate the magnitude and nature of health inequalities between indigenous (Scheduled Tribes) and non-indigenous populations, as well as between different indigenous groups, in a rural district of Kerala State, India. METHODS A health survey was carried out in a rural community (N = 1660 men and women, 18-96 years). Age- and sex-standardised pr...

A search of historical documents about suicide in Siberian tribes in the 18th and 19th centuries indicated that they had very high suicide rates. It would be of great interest to explore suicidal behavior in these tribes today.

An ethnobotanical survey was conducted to collect information about the medicinal plants used by Malayali tribes in Dharmapuri district Tamilnadu, India. Informations presented here were gathered from Malayali tribes using an integrated approach of botanical collections and interview schedules. A total of 7 informants were interviewed and 27 ethno medicinal plant species distributed in 16 famil...