The contamination of 15 ground water resources of a selected region earmarked for the emergency supply of population has been monitored. The resources have been selected on the basis of previous assessment of natural conditions and the exploitation of territory in their surroundings and infiltration area. Two resources out of 15 have been excluded from further exploitation, because they have no...

the paper aimed to assess the factors affecting the willingness of tomato producer to produce organic products in alborz province in crop year 2010-11. the collected data was analysis by descriptive analysis and logit econometrics model. the results of descriptive analysis showed among 90 respondents, 42.2% willing for conversion to organic agriculture.  the results of logit model estimation in...

Honey bees, Apis mellifera, which perform hygienic behavior, quickly detect, uncap and remove diseased brood from the nest. This behavior, performed by bees 15-20 days old and prior to foraging, is likely mediated by olfactory cues. Because the neuromodulator octopamine (OA) plays a pivotal role in olfactory-based behaviors of honey bees, we examined whether bees bred for hygienic and nonhygien...

introduction: gutta-percha, the concrete milky juice of the sapotaceae family tree, is the most commonly used material for obturation of prepared canal space. natural 1-4 trans stereochemical structure of gutta-percha is taken to a heating- inclusion process of various organic and inorganic elements by manufacturers. the purpose of this study is to detect the presence and percentage of inorgani...

This paper details how folklore notions of hygiene and referential transparen y of R5RS ma ros are defeated by a systemati atta k. We demonstrate syntax-rules that seem to apture user identi ers and allow their own identi ers to be aptured by the losest lexi al bindings. In other words, we have written R5RS ma ros that a omplish what ommonly believed to be impossible. We build on the the fundam...

, Mention of a proprietary product does not constitute endorsement by the USDA-ARS SUMMARY Four experiments were conducted to examine factors that influence the expression of hygienic and non-hygienic behaviour in honey bees, Apis mel/itera, and to examine the correlation between this behaviour and resistance to chalkbrood, Ascosphaera apis. Colonies were headed by instrumentally inseminated qu...

The study aims to increase community awareness at the household level about certain hygienic practices and water quality in order to develop an effective program that will target improving specific hygiene-related behavior. The study was carried out in two Palestinian villages and applies a quasi-experimental design where chemical and biological water quality analysis as well as residential beh...

This paper gives an assessment of hygienic conditions found in 22 primary and 12 secondary schools in the city of Split during the school year 1990/91. The data were compared with the results of a similar investigation carried out in eight primary schools in the neighbouring Sinj area. The assessment consisted of the examination of the facilities, questionnaires, and microbiological analysis of...