abstract soil quality evaluation is an essential issue in soil management for agriculture and natural resource protection. soil quality indices are useful tools for determination and comparison of soils quality. using of principle component analysis in this study we selected 6 important properties as a soil quality minimum data set (mds) among 18 soil properties (tds). then, soil quality of agr...

BACKGROUND A cluster-randomized controlled trial of community mobilisation for dengue prevention in Mexico and Nicaragua reported, as a secondary finding, a higher risk of dengue virus infection in households where inspectors found temephos in water containers. Data from control sites in the preceding pilot study and the Nicaragua trial arm provided six time points (2005, 2006, 2007 and 2011, 2...

BACKGROUND Data privacy is a major concern in spatial epidemiology because exact residential locations or parts of participants' addresses such as street or zip codes are used to perform geospatial analyses. To overcome this concern, different levels of aggregation such as census districts or zip code areas are mainly used, though any spatial aggregation leads to a loss of spatial variability. ...

This study was carried out to evaluate the effect of soil application of humic acid on growth and physiological indices of pistachio seedlings ("Badami Zarand" rootstock) under drought stress. This experiment was arranged as a completely randomized design with three replications in greenhouse conditions. The experimental treatments consisted of humic acid (0, 30 and 60 gr in 4 kg-1 s...

BacKground A number of fire danger rating systems, which integrate selected quantifiable factors contributing to fire danger, have been developed to provide numerical indices relating to fire protection needs. it is important to note that fire danger indices have no real physical manifestation – they are just indices. Calculation of fire danger indices generally rely on information relating to ...

Today’s agriculture is not only confronted with the production of food and animal food, but also with aspects of environmental protection. In today’s crop production, there is an increasing pressure to reduce the use of pesticides, to decrease the environmental impact and to lower potential production costs. It is therefore imperative that pesticides are only applied when and where needed. Dise...

considering the importance of biodiversity conservation and protection assessment activities, the present filed study was conducted with aim to compare vegetation diversity of two areas with different levels of protection including ghorkhod protected area with seasonal grazing and golestan national park without grazing, during spring and summer of 2011. four replications were selected in each a...

Larocque, S.M., Hatry, C., and Enders, E.C. 2014. Development of habitat suitability indices and bioenergetics models for Arctic grayling (Thymallus arcticus). Can. Tech. Rep. Fish. Aquat. Sci. 3097: vi + 57 p. Fish habitat models are often used as tools to evaluate habitat quality for aquatic organisms. Habitat suitability indices are a commonly used in habitat models, while others, such as bi...

nowadays, in addition to implement the quality of management systems and environment management and due to the effects of safety and health issues on working processes, the organizations have also sought to acquire health and safety management systems. this descriptive–analytic and past reviewing study has been implemented based on five years (from 2006 to 2010) recorded documents and statistic...