Previous research on media coverage of terrorism and its associated psychological consequences was explored internationally particularly after 9/11 attacks in the US.Also,the constructive role of resilience in this tr...Previous research on media coverage of terrorism and its associated psychological consequences was explored internationally particularly after 9/11 attacks in the US.Also,the constructive role of resilience in this traumatic era has also been explored internationally.However,some studies have been conducted on the effect of media coverage of national terrorism on people that have endured a nearby terrorist attack.Moreover,knowledge about how the media coverage of terrorism,as a secondary source of evidence,can have devastated effects on native’s mental health and how resilience work in this relationship is rather limited.For example,it is possible that different cultures have their own coping strategies(resilience&spirituality)to be adopted as they perceive and respond to terrorism coverage on media differently.Hence,this study examines the moderated role of spirituality as an adaptive mechanism along with resilience as a mediating factor in the relationship between media coverage of terrorists’incidents and mental health concerns such as perceived stress,generalized anxiety and perceived fear among Pakistani youth.Thefindings show significant results as expected,people having high level of spirituality effectively cope with the media coverage of terrorist incidents by facing the situation with more resilient personality and therefore experience less mental health concerns compared to those with low level of spirituality.展开更多
BACKGROUND： Styrene and its metabolites are known to have serious adverse effects on human health and hence, strategies to prevent its release, eradicate it from the environment, and understand its route of degradati...BACKGROUND： Styrene and its metabolites are known to have serious adverse effects on human health and hence, strategies to prevent its release, eradicate it from the environment, and understand its route of degradation are being considered. METHODS： A total of 18 strains were isolated from 4 samples of diesel contaminated soils. Among them 5 strains were selected for their ability to degrade styrene and use it as a sole carbon source to produce PHA. These strains were identified as Enterobacter spp. on the basis of 16S rRNA gene sequencing. Bacteria were screened for their ability to produce PHA by utilizing glucose and styrene as a carbon sources. Screening for PHA production was done by Nile blue A, Sudan black B, and phase contrast microscopy and the selected 3 strains showed positive results. Growth kinetics along with time profiling of PHA was performed for glucose and styrene as carbon sources. RESULTS： PHA extraction was done at equal intervals of 12 h by sodium hypochlorite method which showed that these strains accumulate maximum amount of PHA after 48 h in glucose （30.60%）. FTIR analysis of PHA was done which revealed homopolymer PHB and copolymer （PHB-co-PHV） production in strains by utilizing glucose and styrene. Gas chromatography mass spectrometry was carried out to identify the metabolites produced by bacterial strains grown on styrene. Metabolites of styrene degradation included propyne and phenylalanine. Genomic DNA isolation was carried out to amplify phaC gene which encodes PHA synthase enzyme. CONCLUSIONS： The conversion of styrene to polyhydroxyalkanoates （PHA） provides a new and unique link between an aromatic environmental pollutant and aliphatic PHA accumulation.展开更多
文摘Previous research on media coverage of terrorism and its associated psychological consequences was explored internationally particularly after 9/11 attacks in the US.Also,the constructive role of resilience in this traumatic era has also been explored internationally.However,some studies have been conducted on the effect of media coverage of national terrorism on people that have endured a nearby terrorist attack.Moreover,knowledge about how the media coverage of terrorism,as a secondary source of evidence,can have devastated effects on native’s mental health and how resilience work in this relationship is rather limited.For example,it is possible that different cultures have their own coping strategies(resilience&spirituality)to be adopted as they perceive and respond to terrorism coverage on media differently.Hence,this study examines the moderated role of spirituality as an adaptive mechanism along with resilience as a mediating factor in the relationship between media coverage of terrorists’incidents and mental health concerns such as perceived stress,generalized anxiety and perceived fear among Pakistani youth.Thefindings show significant results as expected,people having high level of spirituality effectively cope with the media coverage of terrorist incidents by facing the situation with more resilient personality and therefore experience less mental health concerns compared to those with low level of spirituality.
文摘BACKGROUND： Styrene and its metabolites are known to have serious adverse effects on human health and hence, strategies to prevent its release, eradicate it from the environment, and understand its route of degradation are being considered. METHODS： A total of 18 strains were isolated from 4 samples of diesel contaminated soils. Among them 5 strains were selected for their ability to degrade styrene and use it as a sole carbon source to produce PHA. These strains were identified as Enterobacter spp. on the basis of 16S rRNA gene sequencing. Bacteria were screened for their ability to produce PHA by utilizing glucose and styrene as a carbon sources. Screening for PHA production was done by Nile blue A, Sudan black B, and phase contrast microscopy and the selected 3 strains showed positive results. Growth kinetics along with time profiling of PHA was performed for glucose and styrene as carbon sources. RESULTS： PHA extraction was done at equal intervals of 12 h by sodium hypochlorite method which showed that these strains accumulate maximum amount of PHA after 48 h in glucose （30.60%）. FTIR analysis of PHA was done which revealed homopolymer PHB and copolymer （PHB-co-PHV） production in strains by utilizing glucose and styrene. Gas chromatography mass spectrometry was carried out to identify the metabolites produced by bacterial strains grown on styrene. Metabolites of styrene degradation included propyne and phenylalanine. Genomic DNA isolation was carried out to amplify phaC gene which encodes PHA synthase enzyme. CONCLUSIONS： The conversion of styrene to polyhydroxyalkanoates （PHA） provides a new and unique link between an aromatic environmental pollutant and aliphatic PHA accumulation.
