In order to evaluate the effects of cover crops on reduced weed biomass in hybrid sunflower an experiment was carried in the research stations, Natural Resources Medicinal Plants (Samian_Ardabile) with 3 replicates in 1390-1391. The first factor was considered three type of cover crops, winter rye, spring barley, winter wheat with 2 control treatment, second factor was mulch management at two ...

large scale land use/cover changes and habitat fragmentation is a major factor in the distribution and functioning of ecosystems. for analysis the relationship between land use changes and their impacts on biodiversity, land cover and land use information is needed at different scales. the main goal of this study was to quantify the land use/ cover changes in arasbaran biosphere reserve, northw...

Background: The present study aimed to compare the effectiveness of Acceptance and Commitment Therapy (ACT) and Guided Imagery (GI) on Emotional Regulation (ER) in patients with cardiovascular diseases referred to the cardiac rehabilitation department. Materials and Methods: This study was an experimental study with a pretest-posttest design, a 45-day follow-up. Using the purposive sampling me...

the mechanism of public-private partnership (ppp) has been used in different countries. many countries have enacted special laws to regulate ppps. in iran, ppp as such has been briefly mentioned in the fifth five year development act and more details of ppps were provided in the yearly budget acts of 1391 and 1392 (2012 and 2013). in the budget act of 1393 (2014) the detailed provisions regardi...

Let (U,S, d) be an instance of Set Cover Problem, where U = {u1, ..., un} is a n element ground set, S = {S1, ..., Sm} is a set ofm subsets of U satisfying ⋃m i=1 Si = U and d is a positive integer. In STOC 1993M. Bellare, S. Goldwasser, C. Lund and A. Russell proved the NPhardness to distinguish the following two cases of GapSetCoverη for any constant η > 1. The Yes case is the instance for wh...

the principle of tort law is that the liability is based on the act prejudicial that in iranian law in conformity with the article 1 of tort law code and in french law in conformity with the article 1382 of civil code, this act must be guilty. the harmful act in determining responsible in tort law is necessary. if the chain of causes of action for compensation for damaging responsible is a pers...

The rangeland in the Khangai mountain region in Mongolia has degraded for the last decades mainly because of overgrazing and climate change. Livestock production is important part of the economy and is based on natural rangeland. In this research we seek to elucidate the influence of five years (2004-2009) of protection from grazing on vegetation cover of different degradation levels of Fes...