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According to a UN Environment Programme survey, topsoil is eroding faster than it forms on about one third of the world’s cropland, causing an estimated 85 % of the world s land degradation from human activities. Erosion of soil, mainly by water, is also a problem in the Czech Republic where 54 % of arable land is endangered by water erosion. The topic of this article is to describe contemporar...

Isaacs and Lindemann first characterized UN in England in 1957; they coined the term to signify a protein elaborated by virally infected cells that functions to prevent their infection by a second virus (1). However, difficulties with chemical isolation and characterization led to great skepticism about the existence of the protein; indeed "... the scientific community dubbed his discovery 'ima...

fatality rate may be attributed to the quick assistance provided along the road. It is also possible that the returnees might have developed some immunity to cholera, following the 1994 outbreak in Goma. The Goma Epidemiology Group estimated that almost all refugees were infected by Vibrio cholerae during that period. Now that returnees are in their communes, active surveillance should be conti...

The DFT+U calculations were employed in a detailed study of the strong electron correlation effects in a promising nuclear fuel-uranium mononitride (UN). A simple method for solving the multiple minima problem in DFT+U simulations and insure obtaining the correct ground state is suggested and applied. The crucial role of spin-orbit interactions in reproduction of the U atom total magnetic momen...

According to the 1951 UN Refugee Convention, there are three conditions a person should meet to be considered a refugee. One of them that this person is actually persecuted or have a reasonable fear of such persecution, for reasons of race, religion, nationality, membership to a particular social group or political opinions. The second one was to have crossed an internationally recognized borde...

Over half of the world's population lives in cities and United Nations (UN) demographers project an increase of 2.5 billion more urban dwellers by 2050. Yet there is too little systematic comparative research on the practice of urban health policy and management (HPAM), particularly in the megacities of middle-income and developing nations. We make a case for creating a global database on citie...

PLoS Biology | http://biology.plosjournals.org Kofi Annan, the SecretaryGeneral of the United Nations, recently called attention to the clear inequalities in science between developing and developed countries and to the challenges of building bridges across these gaps that should bring the United Nations and the world scientifi c community closer to each other (Annan 2003). Mr. Annan stressed t...

This fourth outline of a declaration on universal norms on bioethics was finalized by the Drafting Group of the International Bioethics Committee at its Sixth Meeting, held in Paris from 12 to 14 December 2004. On this occasion, the Drafting Group took account of the preliminary results of the written consultation on the third outline as well as comments formulated at the Fourth Meeting of the ...