Paenibacillus larvae is the etiological agent of American foulbrood (AFB) in honeybees. Recently, different genotypes of P. larvae (ERIC I to ERIC IV) were defined, and it was shown that these genotypes differ inter alia in their virulence on the larval level. On the colony level, bees mitigate AFB through the hygienic behavior of nurse bees. Therefore, we investigated how the hygienic behavior...

In recent years, the awareness of the importance of physical activity for human health is growing, as people practicing it; the number of gyms has also substantially increased. Currently, in Italy there is not a consistent regulation regarding hygienic and sanitary requirements of gyms. Several Italian regions issued laws about this topic. The authors analyse the standards required by the Itali...

Genuine differences in the treatment of identifiers in block-structured languages and those that provide qualified names for accessing components of modules or aggregate data structures invalidate some of the assumptions hygienic macro systems are based on. We will investigate how these assumptions have to be changed, and the consequences for the construction of hygienic macro expanders. Macro ...

This paper presents the “Safe-Instantiation Principle,” a new design principle for evaluating extensions of Java with support for generic types. We discuss the GJ and NextGen formulations of Generic Java and the implications of safe instantiation on both approaches. We then consider the implications of safe-instantiation for the addition of mixins to Java via generic types. Finally, we defend t...

The objective of this article is to systematize the principal recent research results pertaining to the so-called hygienic hypothesis, which establishes an etiological link between the increasing incidence of allergic diseases and the decreasing incidence of infectious diseases in the industrialized countries of the Western world. The author contends that the current debate on the hygienic hypo...

The analysis of medical effects of the Chernobyl accident has obviously demonstrated the high importance of the establishing so-called “zero” baseline of the population health. Such information is necessary to evaluate possible medical effect of many year operation of atomic facilities and to clarify the scale of the health impact. Such assessments require vast comprehensive hygienic studies wi...

the main purpose of this study is to investigate the preferences of urban dwellers for variouselements of urban parks in order to provide some important suggestions for rehabilitation of urban deficient parks. inthis regard, this study has conducted a survey in one of the oldest parks in khorramabad, iran, to reveal the overallsatisfaction of the park situation and to explore the preferences of...

this study investigated metadiscourse and its subcategories in english research articles (ras) written by nonnative (iranian) and native english writers from the two disciplines of applied linguistics and civil engineering. the study aimed at seeing whether language and discipline influenced the frequency of occurrence of metadiscourse elements in research articles. to this end, a sample of 120...

background: the hygienic issues are the essential criteria in the primary site selection, compatibility and maintain of passengers health after use of the services. qom with 17 million annual tourists is the second religious tourism center in iran. the aim of this study was to investigate the impact of the public residential centers internal managers’ educational status on their environmental h...