Sökning: "EC50"

Visar resultat 6 - 10 av 14 uppsatser innehållade ordet EC50.

1. 6. Toxikologisk tillväxtstudie av sötvattenalgen Raphidocelis subcapitata : En jämförelse mellan flödescytometer NovoCyte och automatisk cellräknare TC20

   Kandidat-uppsats, Högskolan Kristianstad/Fakulteten för naturvetenskap

   Författare :Eva Andersson; [2018]
   Nyckelord :Toxicity test; subcapitata; EC50; ISO 8692; potassium dichromate; flow cytometry; cell counter; growth inhibition; Toxicitetstest; subcapitata; EC50; ISO 8692; kaliumdikromat; flödescytometer; cellräknare; tillväxtinhibering;

   Sammanfattning : Biologiska toxicitetstester utförs genom att exponera en testorganism för olika koncentrationer av kemikalier under en bestämd period. Det finns akuta toxicitetstester och kroniska. Resultat från akuta studier presenteras som EC50-värde (Effect Concentration, affecting 50 % of the population). LÄS MER

3. 7. The impact of phosphorus and temperature on the toxicity of zinc on benthic diatom

   Kandidat-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

   Författare :Josabeth Ström; [2016]
   Nyckelord :benthic diatom; zinc; temperature; phosphorus; toxicity; ecological status;

   Sammanfattning : The current index, IPS, developed for benthic diatoms and used for assigning the ecological status of streams in Sweden reflects on levels of nutrients and organic pollution. Metals are not considered in the index, which leads to the risk that metal contaminated streams can be assigned a high ecological status based on this index. LÄS MER

4. 8. Toxicity of chlorantraniliprole to the Collembola Folsomia candida : toxicodynamics and effects of organic matter content

   Master-uppsats, Mittuniversitetet/Avdelningen för naturvetenskap

   Författare :Kristina Berggren; [2013]
   Nyckelord :;

   Sammanfattning : Toxicity of pesticides to non-target organisms determines their impact on natural environments. And to find pesticides with a new, target-specific mode of action, which are safe to farmers and organisms in the surrounding environment, is important when developing new pesticides. LÄS MER

5. 9. Combination effects of metals in soil - acute toxicity test of bacteria with the leucine incorporation method

   Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

   Författare :Ylva Sandberg; [2012]
   Nyckelord :Earth and Environmental Sciences;

   Sammanfattning : Within the field of ecotoxicology there is a concept called combination effects. There are two different approaches to combination effects, independent action (IA) and concentration addition (CA). The common assumption in both approaches is that there are no interactions between the substances within the mixture. LÄS MER

7. 10. PKPD models for colistin and meropenem on a wild-type and a resistant strain of Pseudomonas aeruginosa

   Uppsats för yrkesexamina på avancerad nivå, Institutionen för farmaceutisk biovetenskap

   Författare :Jonathan Lyly; [2011]
   Nyckelord :meropenem; colistin; pseudomonas aeruginosa; models; pharmacometric models; pharmacokinetic models; PKPD;

   Sammanfattning : Resistant bacteria are becoming more and more of a problem but treatment with antibiotics in combination may overcome and prevent resistance development. The combination of meropenem and colistin against Pseudomonas aeruginosa has been proposed as a promising treatment to increase the bactericidal effect and a synergistic effect has been proposed. LÄS MER