Zobrazeno 1 - 10
of 30
pro vyhledávání: '"M. A. E. Khalifa"'
Publikováno v:
World's Veterinary Journal. 10:658-664
The deleterious effect of heat stress on cumulus-oocytes complexes (COCs) competence is well recognized in different livestock species. Therefore, the present study aimed to investigate the effect of physiologically relevant heat stress on the develo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58444e91ba995facc083e1b2e8c6a34e
https://doi.org/10.54203/scil.2020.wvj79
https://doi.org/10.54203/scil.2020.wvj79
Autor:
Salah El-Din El-Assal, Ashraf M. El-Sayed, Ahmed Al Amin, Ahmed Gad, Swiefy A. Swiefy, Said Abu Hamed, M. A. E. Khalifa
Publikováno v:
International Journal of Veterinary Science and Medicine, Vol 6, Iss 2, Pp 279-285 (2018)
Retinoic acid, vitamin A metabolite, plays a role in oocyte development and maturation in different ways including gene expression alteration and/or prohibiting oxidative stress. The objective of this study was to examine the effect of 9-cis-retinoic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edf6f17324cca91bc0bfc3c167b93a66
https://doi.org/10.1016/j.ijvsm.2018.09.003
https://doi.org/10.1016/j.ijvsm.2018.09.003
Publikováno v:
Egyptian Journal of Animal Production. 52:1-7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c20ae6cec6fc5ad53018e07d50d053fa
https://doi.org/10.21608/ejap.2015.170495
https://doi.org/10.21608/ejap.2015.170495
Autor:
Ahmed Gad, M. A. E. Khalifa, Salah El-Din El-Assal, S. Abu Hamed, Ashraf M. El-Sayed, S. A. Swiefy
Publikováno v:
Reproduction, Fertility and Development. 29:202
Retinoic acid, a metabolite of vitamin A, regulates oocyte maturation through multiple mechanisms, including gene expression modulation or preventing oxidative stress. Effects of retinoic acid during oocyte maturation have been reported in several sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a32881fe59ce7ed9201d8659c655e6c
https://doi.org/10.1071/rdv29n1ab187
https://doi.org/10.1071/rdv29n1ab187
Autor:
Mohamed Kamal Ahmed Ibraheim, Mohamed Rifaat Hamza Elmoghayer, M. A. E. Khalifa, Mohamed Hilmy Elnagdi
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 113:53-57
The reaction of ethyl cyanoacetate with α-cyanochalcone (1) leads to the formation of β-enaminoesters (3) viaMichael addition. Compound3 reacts with phenylmagnesium bromide to give the β-enaminoketone5. Acetylation of3 gives the acetyl product4. E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b1393f56d27950a4afb0ed472ae49f0
https://doi.org/10.1007/bf00814337
https://doi.org/10.1007/bf00814337
Publikováno v:
Journal f�r Praktische Chemie. 319:432-438
A series of endo-carbonyl-1,2-dihydro-(3,4,5,6-tetraphenyl)-N-substituted phthalimides (5a–e) has been synthesized by the Diels-Alder reaction of tetracyclone (2) with some N-substituted maleimides (1a–e). Decarbonylation of the adducts 5a, b aff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db986a14ed5e365fb23e8576998c6577
https://doi.org/10.1002/prac.19773190311
https://doi.org/10.1002/prac.19773190311
Publikováno v:
Zeitschrift für Naturforschung B. 35:485-489
The arylhydrazonomesoxalonitriles derivatives 1 a - c were utilised for the synthesis of several new pyrimidine, pyridines, triazine and isoxazole derivatives. Compound 1 a reacted with alkyl halides to yield the N-alkyl derivatives 12a, b. The latte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e85693a705862394e97210296dc4b78a
https://doi.org/10.1515/znb-1980-0416
https://doi.org/10.1515/znb-1980-0416
Publikováno v:
Archiv der Pharmazie. 316:985-988
2-Mercaptopyridoimidazole (1) reacts with monochloroacetic acid to give 2, which in turn reacts with aromatic aldehydes or aryldiazonium chloride to give 3 and 4. On reaction with maleic anhydride 1 affords 6. Cyanoethylation of 1 leads to the compou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3046f7aa3564002d8f07f28dc906922d
https://doi.org/10.1002/ardp.19833161203
https://doi.org/10.1002/ardp.19833161203
Publikováno v:
Archiv der Pharmazie. 316:105-110
Several new isoxazole derivatives were prepared from the 5-aminoisoxazole derivatives 1 and the 3-aminoisoxazole derivative 12 as starting materials. Reaktionen mit heterozyklischen Enaminen: Darstellung verschiedener neuer Isoxazol-Derivate Verschie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbcfb81db4236285f6db91667eca34b5
https://doi.org/10.1002/ardp.19833160204
https://doi.org/10.1002/ardp.19833160204
Publikováno v:
Archiv der Pharmazie. 316:822-826
Several new pyridones, pyrans, pyrazolo[4,3-b]pyrans and isoxazolo[4,3-b]pyrans were prepared from the chalcones 2a,b and activated methylene compounds. Aktivierte Nitrile in der heterocyclischen Chemie: Synthesen von neuen Pyranen, Pyridonen, Pyrazo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d60994b5fdc940c671dc2f4c08e2e17e
https://doi.org/10.1002/ardp.19833161003
https://doi.org/10.1002/ardp.19833161003