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Biochemical and physiological studies of certain ticks (Ixodoidea). Cuticular permeability of Hyalomma (H.) dromedarii Koch (Ixodidae) and Ornithodoros (O.) savignyi (Audouin) (Argasidae).
Hafez M, el-Ziady S, Hefnawy T. Hafez M, et al. Among authors: hefnawy t. J Parasitol. 1970 Feb;56(1):154-68. J Parasitol. 1970. PMID: 5413840 No abstract available.
Biochemical and physiological studies of certain ticks (Ixodoidea). The effect of unfed female weight on feeding and oviposition of Hyalomma (H.) dromedarii Koch (Ixodidae).
Bassal TT, Hefnawy T. Bassal TT, et al. Among authors: hefnawy t. J Parasitol. 1972 Oct;58(5):984-8. J Parasitol. 1972. PMID: 5078606 No abstract available.
Biochemical and physiological studies of certain ticks (Ixodoidea): specific gravity of hemolymph and coxal and gut fluids of Argas (Persicargas) persicus and Argas (Persicargas) arboreus (Argasidae).
Hefnawy T, Dimos JP. Hefnawy T, et al. Exp Parasitol. 1974 Aug;36(1):1-5. doi: 10.1016/0014-4894(74)90106-4. Exp Parasitol. 1974. PMID: 4843564 No abstract available.
Biochemical and physiological studies of certain ticks (Ixodoidea). Osmotic pressure of hemolymph and gut and coxal fluids during the gonotrophic cycle of Argas (Persicargas) persicus (Oken) and A.(P.) arboreus Kaiser, Hoogstraal, and Kohls (Argasidae).
Hefnawy T. Hefnawy T. J Parasitol. 1972 Dec;58(6):1197-200. J Parasitol. 1972. PMID: 4641891 No abstract available.
Biochemical and physiological studies of certain ticks (Ixodoidea): effects of relative humidity and starvation on the water balance and behavior of adult Argas (Persicargas) arboreus (Argasidae).
Hefnawy T, Bishara SI, Bassal TT. Hefnawy T, et al. Exp Parasitol. 1975 Aug;38(1):14-9. doi: 10.1016/0014-4894(75)90033-8. Exp Parasitol. 1975. PMID: 1149866 No abstract available.
Biochemical and physiological studies of certain ticks (Ixodoidea). Hemolymph volume determined by isotope and dye dilution during the gonotrophic cycle of Argas (Persicargas) persicus (Oken) and A. (P.) arboreus Kaiser, Hoogstraal, and Kohls (Argasidae).
Hefnawy T. Hefnawy T. J Parasitol. 1972 Apr;58(2):358-64. J Parasitol. 1972. PMID: 4553960 No abstract available.
Blood meal weight and heme content during development of Ornithodoros (O.) Savignyi (Ixodoidea: Argasidae).
Hefnawy T, Khalil GM, Sidrak W. Hefnawy T, et al. J Med Entomol. 1979 Sep 4;15(5-6):445-51. doi: 10.1093/jmedent/15.5-6.445. J Med Entomol. 1979. PMID: 544814 No abstract available.
The functional morphology of Haemaphysalis spiracles (Ixodoidea: Ixodidae).
Roshdy MA, Hefnawy T. Roshdy MA, et al. Among authors: hefnawy t. Z Parasitenkd. 1973 Aug 3;42(1):1-10. doi: 10.1007/BF00329005. Z Parasitenkd. 1973. PMID: 4744213 No abstract available.
The endocrine disrupting alkylphenols and 4,4'-DDT interfere with estrogen conversion and clearance by mouse liver cytosol.
El-Hefnawy T, Hernandez C, Stabile LP. El-Hefnawy T, et al. Reprod Biol. 2017 Sep;17(3):185-192. doi: 10.1016/j.repbio.2017.04.003. Epub 2017 May 19. Reprod Biol. 2017. PMID: 28532594
A study of parabens and bisphenol A in surface water and fish brain tissue from the Greater Pittsburgh Area.
Renz L, Volz C, Michanowicz D, Ferrar K, Christian C, Lenzner D, El-Hefnawy T. Renz L, et al. Among authors: el hefnawy t. Ecotoxicology. 2013 May;22(4):632-41. doi: 10.1007/s10646-013-1054-0. Epub 2013 Mar 13. Ecotoxicology. 2013. PMID: 23479059
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