aim and background: biological, psychological and social phenomenon of substance abuse in adolescents is one of the most critical issues facing modern societies. one of the major concerns of the health and social policy makers is the increasing prevalence of addictive behaviors, particularly tobacco smoking in this age group. prevalence and trends toward high-risk behaviors among adolescents in...

Despite its direct relevance to second/foreign language learning, quality of life has been a neglected area within Second Language Acquisition (SLA) research. The present study sought to investigate the relationship between quality of life factors and speaking skill as one of the most challenging parts of L2 learning. To this end, an adapted version of life quality questionnaire originally devi...

The efficacy of Respisure (Pfizer AH, USA), a vaccine against M. hyopneumoniae, was tested in pigs kept under good, moderate and poor housing conditions, respectively. The immune response, daily weight gain (DWG), lung lesions, and some parameters of meat important for production were examined. A total of 2.210 pigs from three different farms were used. One group of 1.105 piglets was vaccinated...

This study employs Multi-Layer Perceptron (MLP) to estimate environmental impact of salt plugs using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). VNIR and SWIR datasets of ASTER were assessed in mapping and detecting Jahani, Konarsiah, and Kohe Gach salt plugs and the affected areas located at SE Shiraz, Iran. PC color composite and geological map of the region were u...

autism is a developmental disability with age of onset in childhood (under 3 years old), which is characterized by definite impairments in social interactions, abnormalities in speech, and stereotyped pattern of behaviors. due to the progress of autism in recent decades, a wide range of studies have been done to identify the etiological factors of autism. it has been found that genetic and envi...

Despite its direct relevance to second/foreign language learning, quality of life has been a neglected area within Second Language Acquisition (SLA) research. The present study sought to investigate the relationship between quality of life factors and speaking skill as one of the most challenging parts of L2 learning. To this end, an adapted version of life quality questionnaire originally devi...

The aim of the study of the Assessment and evaluation of citizen's views on the impact of commercial television advertising on consumer behavior (Case Study: Ardebil city). This research will be done by a descriptive- Scrolling method and In terms of purpose, it is an applied type. The instrument for collecting data was A researcher-made questionnaire that includes elements of cultural factors,...

AbstractIn this study, the researchers examined the sources of demotivation among adult language teachers in Najafabad language institutes. Two objectives were pursued in the process of implementing this research: 1) Determining the main sources of demotivation among adult teachers teaching in Najafabad language institutes 2) Uncovering the most significant demotivating factors among Engl...