some macroinvertebrate indices of stream health have been identified as most useful and efficacious. management decisions can be made with greater awareness.the objectives of this study were to assess the biological water of the hazar river using macroinvertebrates.the haraz river is one of the best freshwater ecosystems in the mazandaran province located in the north of iran.to assess the macr...

this study aims at evaluating the completeness of the content of the ecological part in environmental impact assessments (eias) and environmental impact statements (eiss) on content review basis. the requirements of the ecological content as stated in the of five sets of thai’s eia guidelines, namely the specific guidelines for power plants, industrial projects, dams and harbors and the gene...

Ground-based optical astronomy necessarily involves sensing the light of astronomical objects along with contributions many natural sources ranging from Earth’s atmosphere to cosmological light. In addition, astronomers have long contended artificial pollution, which further adds ‘background’ against are seen. Understanding brightness night sky is therefore fundamental astronomy. The last compr...

El análisis de cambio los ecosistemas representa un aspecto clave para evaluar impactos producidos por la desertificación. La desertificación afecta a suelos con gran inestabilidad y, en algunos casos, produce respuestas abruptas e irreversibles. Por ello, evaluación y modelización dinámica espacio-temporal teledetección es una prioridad investigación. Es importante cómo al porcentaje cubierta ...

background: adjustment disorder (ajd) is a transient mental health condition emerging after stressful life events. its diagnostic criteria have recently been under revision which led to the development of the adjustment disorder–new module 20 (adnm-20) as a self-report assessment. objective: to identify a threshold value for people at high risk for ajd. methods: as part of a randomized controll...