320 research outputs found
Insecticide Effects on Normal Development and Hatch of Embryos of \u3ci\u3eParatanytarsus Parthenogeneticus\u3c/i\u3e (Diptera: Chironomidae)
Get PDFSimple, low cost methods are needed to determine the effect of pesticides on non-target aquatic organisms. In this report, embryos of Paratanytarsus parthenogenetic us were exposed from deposition to hatch to five pesticides. Four of the five pesticides affected development or hatch only at concentrations which exceeded 96-h LC50 values of other non-target invertebrates. One pesticide, fenitrothion, affected hatch at 13 Ilgll which is similar to 96-h LC50 values for other aquatic invertebrates. Because of the low sensitivity of the embryo to pesticides, this method may not be a useful pesticide screening test for non-target invertebrates
Insecticide Effects on Normal Development and Hatch of Embryos of \u3ci\u3eParatanytarsus Parthenogeneticus\u3c/i\u3e (Diptera: Chironomidae)
Get PDFSimple, low cost methods are needed to determine the effect of pesticides on non-target aquatic organisms. In this report, embryos of Paratanytarsus parthenogenetic us were exposed from deposition to hatch to five pesticides. Four of the five pesticides affected development or hatch only at concentrations which exceeded 96-h LC50 values of other non-target invertebrates. One pesticide, fenitrothion, affected hatch at 13 Ilgll which is similar to 96-h LC50 values for other aquatic invertebrates. Because of the low sensitivity of the embryo to pesticides, this method may not be a useful pesticide screening test for non-target invertebrates
Taking Your Son/Daughter with an Autism Spectrum Disorder to the Dentist
Get PDFTaking your son/daughter on the autism spectrum to the dentist poses many challenges. This article hopes to make you aware of some of these challenges prior to your first visit, as well as provide some useful ways to deal with them. Included in this article are three main area that are most often in need of attention: preparation, sensory issues and communication
What is the evidence that the establishment or use of community accountability mechanisms and processes improves inclusive service delivery by governments, donors and NGOs to communities?
Get PDFUnderstanding provision for students with mental health problems and intensive support needs:Report to HEFCE by the Institute for Employment Studies (IES) and Researching Equity, Access and Partnership (REAP)
Get PDFThis report presents the findings of a research project undertaken for the Higher Education Funding Council for England (HEFCE) to update its understanding of institutional support provision for students with mental health problems and other impairments with high cost or intensive support needs
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