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Efectos del cromo hexavalente y un carbamato sobre dos especies de Cladoceros


, : Efectos del cromo hexavalente y un carbamato sobre dos especies de Cladoceros. Acta Biologica Colombiana 4(1): 21-34

The effect of a carbamate and a heavy metal was evaluated on survival, sexual maturation aud fertility of the acuatic cladocerans Daphnia magna and Daphnia obtusa. Acute toxicity-LC50 and chronic toxicity-CV values were determined. For D. magna LC50 Cr+6 was 0.35 mg/l and CV 0.20 mg/l. For D. obtusa LC50 Cr+6 was 0.04 mg/l and VC 0.009 mg/l. For D. magna LC50 Methomyl was 0.l0 mg/l and CV 2.2 X 10-3 mg/l. Exposure of D. obtusa to Methomyl yielded a LC50 of 0.005 mg/l, and response of animal at sublethal concentrations were irregular, therefore CV statistical confidence was poor and not shown.

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Other references

Lichev, C.S.aridolski, G., 1977: Application of a slow acting fertilizer (isobutylene dicarbamide in rice crops. Rastenievudni nauki Plant science: 4 (10) 98-104

Mascioli, E.A.; Babayan, V.K.; Bistrian, B.R.; Blackburn, G.L., 1988: Novel triglycerides for special medical purposes. The clinical use of intravenous lipid emulsions have been routine for over 25 years. For most of that time period the use of the vegetable oils, soybean and safflower, were the exclusive lipid source for these emulsions. Recently intravenous mediu...

Nomoto, T., 1966: Casting stress and deformation of cast inlay. Kokubyo Gakkai Zasshi. Journal of the Stomatological Society, Japan 33(3): 367-367

Loria, C.M.; Ingram, D.D.; Feldman, J.J.; Wright, J.D.; Madans, J.H., 2000: Serum folate and cardiovascular disease mortality among US men and women. Folate has been linked to cardiovascular disease (CVD) through its role in homocysteine metabolism. The relationship between serum folate and CVD mortality was assessed. In this prospective study, serum folate concentrations were measured on a sub...

Sood, ML.; Kapur, J., 1982: Electrophoretic analysis of proteins of knobbed and linguiform morphs of female Haemonchus contortus (Nematoda: Trichostrongylidae). Adult H. contortus were collected from the abomasa of goats from slaughterhouses in Ludhiana, India, and females were sorted into knobbed and linguiform phenotypes. Proteins were then analysed by polyacrylamide gel electrophoresis. Knobbed forms g...

Nicolosi G.L.; Budano S.; Grenci G.M.; Mangano S.; Cervesato E.; Zanuttini D., 1989: In vitro evaluation of the relation between geometry of the inflow and color doppler jets. European Heart Journal 10(ABSTR SUPPL): 282

Mabuchi, H., 1980: Serum lipoprotein and LDL pathway in familial hypercholesterolemia. Nihon Naika Gakkai Zasshi. Journal of the Japanese Society of Internal Medicine 69(10): 1248-1249

Rosová, N.; Zelinka, J., 1968: Localization of chlortetracycline and vitamin B12 in subcellular fractions of Streptomyces aureofaciens. Journal of Antibiotics 21(5): 363-364

Abe, A.; Inoue, K.; Tanaka, T.; Kato, J.; Kajiyama, N.; Kawaguchi, R.; Tanaka, S.; Yoshiba, M.; Kohara, M., 1999: Quantitation of hepatitis B virus genomic DNA by real-time detection PCR. Quantitation of hepatitis B virus (HBV) DNA in serum is a useful method for the monitoring of HBV replication. We attempted to develop a quantitative assay system for HBV DNA that is more sensitive, accurate, and reproducible than existing systems...

Zhenodarova, S.M., 1994: Nucleozymes and minizymes. The data on the replacement of ribonucleotides within ribozymes with deoxyribonucleotides are reviewed. Resulting chimeric ribozymes ("nucleozymes") are many times more stable than their precursors. Synthesis of minimized ribozymes or mi...