Paul Escovar
Paul Antonio Escovar Díaz, Venezuelan urologist (1950 – Authored Endourologia y ondas de choque, (1987) with international repercussion DEVELOPED TECHNIQUES With P.E. Escovar La Riva, F.P. Rodríguez Escovar et al. Percutaneous nephrolithotomy (PCNL): conditions for a safe performance. Arch. Esp. Urol. 70:173-95, 2017 With M. Rey, J.R. López, P. Sanchez, R. Cuervo, P.E. Escovar La Riva & A. Rasguido. Acceso transuretrovesicorenal para litiasis em riñones pelvicos: una tecnica responsible. Rev. Arg. Urol. 78(3):110-4, 2013 With F.J. Reyes Z & M.G. Porras M. Cirurgia renal percutanea. Descripción de una tecnica segura. Rev. Mex. Urol. 65(4), 2005
Omar El Seoud
Omar Abdel Monein Abou El Seoud, Egyptian-born Brazilian chemist (Cairo 21 May 1945 – Coined the term surface active ionic liquids or SAILs With P.A. Pires, T. Abdel Moghny & E.L. Bastos. Synthesis and micellar properties of surface-active ionic liquids: 1-alkyl-3-methylimidazolium chlorides. J. Colloid Interface Sci. 313(1):296-304, 2007 His work was cover of a review With P.D. Galgano. Micellar properties of surface active ionic liquids: A comparison of 1-hexadecyl-3-methyl-imidizolium chloride with structurally related cationic surfactants. J. Col. Interf. Science (2010) With L.A. Ramos, D.L. Morgado, V.C. da Silva & E. Frollini. Acetylation of cellulose in LiCl-N,N-dimethylacetamide: first report on the correlation between the reaction efficiency and the aggregation number of dissolved cellulose. Cellulose (London) 18:385-92, 2011. With H. Nawaz & R. Casarano. First report on the kinetics of the uncatalyzed esterification of cellulose under homogeneous reaction conditions: a rationale for the effect of carboxylic acid anhydride chain-length on the degree of biopolymer substitution. Cellulose (London) 19:199-207, 2012. With C.T. Martins & B.M. Sato. First study on the thermo-solvatochromism in aqueous 1-(1-butyl)-3-methylimidazolium tetraflouroborate: A comparison between the solvation by an ionic liquid and by aqueous alcohols. Journal of Physical Chemistry 112: 8330-9, 2008. With P.L. Silva, M.A.S. Trassi & C.T. Martins. Solvatochromism in Binary Mixtures: First Report on a Solvation Free Energy Relationship between Solvent Exchange Equilibrium Constants and the Properties of the Medium. Journal of Physical Chemistry. B 113:9512-9, 2009. DEVELOPED TECHNIQUES With P.A.R. Pires, N.I. Malek, T.C. Teixeira, T.A. Bioni & H. Nawaz. Imidazole-catalyzed esterification of cellulose in ionic liquid/molecular solvents: a multi-technique approach to probe effects of the medium. Indust. Crops Products 77:180-9, 2015 With M.I. El Seoud & J.A. Mickiewicz. A proton and carbon 13NMR study on the state of water solubilized by detergent aggregates in organic solvents With R. Casarano & P.A.R. Pires. Acylation of cellulose in a novel solvent system: Solution of dibenzyldimethylammonium fluoride in DMSO. Carbohydrate Polymers 101:444-50, 2014. With R. Casarano, P.A.R. Pires & A.C. Borin. Novel solvents for cellulose: Use of dibenzyldimethylammonium fluoride/dimethyl sulfoxide (DMSO) as solvent for the etherification of the biopolymer and comparison with tetra(1-butyl)ammonium fluoride/DMSO. Industrial Crops and Products 54:185-91, 2014 With D.P. Valencia, P.D. Galgano & M. Bertotti.A simple Approach to Calculate the Micelle Aggregation Numbers of Ionic Liquid-Based Surfactants: Electrochemical Behavior of Aggregate-Solubilized Ferrocene Studied by Microelectrode Voltammetry. Journal of the Electrochemical Society 161:660-2, 2014. With L.C. Fidale & T. Heinze. Perichromism: A powerful tool for probing the properties of cellulose and its derivatives. Carbohydrate Polymers 93:129-34, 2013 With R. Casarano. A Novel Route to Obtaining Stable Quaternary Ammonium Fluoride Solutions in DMSO: Application in Microwave-Assisted Acylation of Cellulose. Lenzinger Berichte, 91:112, 2013 With C. Loffredo, P.A.R. Pires & M. Imran.β-Carotene: A green, inexpensive, and convenient solvatochromic probe for the determination of solvent polarizability. Dyes and Pigments 96:16-24, 2013. With L.C. Fidale, L.M.A. Hortencio, T. Heinze, P.A.R. Pires & P.M. Lima. Employing perichromism for probing the properties of carboxymethyl cellulose films: an expedient, accurate method for the determination of the degree of substitution of the biopolymer derivative. Cellulose (London) 19:151-9, 2012. With R. Casarano, L.C. Fidale, C.M. Luchetti & T. Heinze. Expedient, accurate methods for the determination of the degree of substitution of cellulose carboxylic esters: Application of UVa “vis spectroscopy (dye solvatochromism) and FTIR. Carbohydrate Polymers 83:1285-92, 2011. With R. Casarano, H. Nawaz, S. Possidonio & V. C. da Silva. A convenient solvent system for cellulose dissolution and derivatization: Mechanistic aspects of the acylation of the biopolymer in tetraallylammonium fluoride/dimethyl sulfoxide. Carbohydrate Polymers 86:1395-1402, 2011. With S. Possidonio & L.C. Fidale. Microwave-assisted derivatization of cellulose in an ionic liquid: An efficient, expedient synthesis of simple and mixed carboxylic esters. Journal of Polymer Science. Part A, Polymer Chemistry 48:134-143, 2010. With L.C. Fidale, S. Kohler, M.H.G. Prchtl & T. Heinze. Simple, Expedient Methods for the Determination of Water and Electrolyte Contents of Cellulose Solvent Systems. Cellulose 13: 581-92, 2006 With C.T. Martins & M.S. Lima. A Novel, Convenient, Quinoline-Based Merocyanine Dye: Probing Solvation in Pure and Mixed Solvents and in the Interfacial Region of an Anionic Micelle. Journal of Physical Organic Chemistry 18: 1072-85, 2005. With G.A. Marson. A novel efficient procedure for acylation of cellulose under homogeneous solution conditions. Journal of Applied Polymer Science 74:1355, 1999. With G.J. Vidotti. An Accurate Method for Determining the Residual Base Catalyst in Commercial Non-ionic Detergents. Colloid and Polymer Science 258:1200, 1980. With V. Aldrigue. Simple, Efficient Methods for Preparing N-Alkylimidazoles. Anais da Academia Brasileira de Ciências 50:87, 1978. BRAZILIAN PATENT With R. Casarano. Sistema de solventes, processo de produção de um sistema de solventes e seu uso. BR10 2013 0010979A2 (2013)
Nicolas Esposto
Nicolás E. Esposto, Italian-born Peruvian botanist and pharmacist (Genoa 01 November 1877 – 1942) SOME BIBLIOGRAPHY Contribución al estudio de las orquidáceas de las lomas de los alrededores de Lima. Ann. Direcc. Fomento 11:49-53, 1913 With A. Maldonado. Contribución al estudio del Myroxylon peruiferum Linn. Anales Fac. Medicina Lima (1919) With A. Maldonado. Balsamo del Peru y balsamo de Tolú (1920) With J. Octavio Solano. Contribución al estudio de las taxáceas del Perú. Boletín Museo Hist. Nat. Javier Prado, 28-38, 1939 With A. Maldonado. Contribución al estudio de la matéria medica peruana HONORS (Cactaceae) Espostoa Britton & Rose 1920 Espostoopsis Buxbaum 1968
Narciso Esparragoza
Narciso Esparragoza y Gallardo, Guatemalan physician (Caracas, Venezuela 29 October 1759 – Ciudad de Guatemala 21 August 1819) Invented elastic ansa, a primitive kind of forceps used in obstetrics Memoria sobre una invención facil y sencilla para extraer las criaturas enclavadas en el paso sin riesgos de la vida ni ofensa de su madre (1798) Developed a simple method for diagnosis and cure of smallpox Metodo sencillo y fácil para el conocimiento y curación de las viruelas (1815)
Mohamed Hilmy Elnagdi
Mohamed Hilmy Ali Elnagdi, Egyptian organic chemist (Mansoura 01 September 1941 – Authored 450 papers with over 6,400 citations Synthesized a variety of compounds related to pyrazoles, thiazoles and oxazoles First to report the utility of arylidene malononitrile as precursor to heteroaromatics BIBLIOGRAPHY/CONTRIBUTIONS With M.S. Moustafa, S.M. Al-Mousawi, N.M. Hilmy et al. Unexpected behavior of enaminones: interesting new routes to 1,6-naphthyridines, 2-oxopyrrolidines and pyrano[4,3,2-de]-[1,6]naphthyridines. Molecules 18(1):276-86, 2013 With S.M. Ashkar, M.A. El-Apasery, M.M. Touma et al. Synthesis of some novel biologically active disperse dyes derived from 4-methy1-2,6-dioxo-1- propy1-1,2,5,6-tetrahydropyridine-3-carbonitrile as coupling component and their colour assessment on polyester fabrics. Molecules 17(8): 8822-31, 2012 With O.S. Zaky, M.S. Moustafa, M.A. Maghraby et al. Scope and limitations of a novel synthesis of 3-arylazonicotinates. Molecules 17(5): 5924-34, 2012 With H.M. Al-Matar, A.Y. Adam, K.D. Khalil et al. Studies with 3-oxoalkanenitriles: novel rearrangements observed while exploring the utility of 2-cyanoacetyl-l-methylpyrrole as a precursor to pyrrole substituted heterocyclic compounds. Arkivoc 1-15, part 6, 2012 With H. Behbehani, H.M. Ibrahim, S. Makhseed et al. 2-aminothiophenes as building blocks in heterocyclic synthesis: synthesis and antimicrobial evaluation of a new class of pyrido[1,2-a]thieno[3,2-e]-pyrimidine, quinoline and pyridin-2-one derivatives. European Journal of Medicinal Chemistry. 52: 51-65, 2012 With H.M. Al-Matar, K.D. Khalil, M.F. Al-Kanderi et al. Studies on 3-oxoalkanenitriles: novel rearrangement reactions observed in studies of the chemistry of 3-heteroaroyl-3-oxoalkanenitriles as novel routes to 2-dialkylaminopyridines. Molecules 17(1):897-09, 2012 With N.A. Al-Jalal, M.R. Ibrahim, N.A. Al-Awadi et al. The photochemistry of benzotriazole derivatives. part 2: photolysis of 1-substituted benzotriazole arylhydrazones: new route to phenanthridin-6-y1-2-phenyldiazines. Molecules 16(12):10256-68, 2011 With S. Moustafa & S.M. A-Mousawi. Studies of functionally substituted enamines: a new step-one method for the formation of tetrahydroquinoline and nicotinonitrile derivatives. Synlett. 15:2237-41, 2011 With S.M. Al-Mousawi, M.S.Moustafa, I.A. Abdeihamid et al. Reassignment of the structures of condensation products of alpha-keto alpha’-formylarylhydrazones with ethyl cyanoacetate: a novel route to ethyl 5-arylazo-2-hydroxynicotinates. Tetrahedron Letters 52(2): 202-4, 2011 With S.M. Al-Mousawi & M.S. Moustafa. On the reaction of phenacylmalononitrile with hydrazines: a new route to pyrazolo[3,4-c]pyridazine, isoxazolo[5,4-clpyridazine and pyrimido[4,5-c]-pyridazine. Journal of Saudi Chemical Society 15(4):309-12, 2011 (Special issue) With H.M. Ibrahim, H. Behbehani, S. Makhseed et al. Acylation of heteroaromatic amines: facile and efficient synthesis of a new class of 1,2,3-triazolo[4,5-13]pyridine and pyrazolo[4,3-b]pyridine derivatives. Molecules 16(5):3723-39, 2011 With F.M. A.A. El-Taweel. Studies with enaminones: synthesisof new coumarin-3-yl azoles, coumarin-3-yl azines, coumarin-3-yl azoloazines,coumarin-3-yl pyrone and coumarin-2-ylbenzo[b]furans. Journal of Heterocyclic Chemistry 38(4):981-4, 2001 With F. Alomran, N. Alawadi A. Abouelkhair et al. Synthesis of new aryl and heteroaromatic substituted pyridines, pyrazoles, pyrimidines and pyrazolo[3,4-d]pyridazines. Organic Preparations and Procedures International 29(3):285-92, 1997 With F. Alomran, M.M.A. Khalik, A. Abouelkhair et al. Studies with functionally substituted heteroaromatics: a novel route for the synthesis of 1-aryl-6-oxopyridazinones, 1-arylpyridazine-6-imines and 1 -aryl-6-imino-4-pyridazinals. Synthesis 1:91, 1997 With H.Alawadhi, F. Alomran et al. New synthetic approaches to condensed pyridazinones – alkylpyridazinyl carbonitriles as building-blocks for thesynthesis of condensed pyridazinones. Tetrahedron 51(46):12745-62, 1995 With A.W. Erian. Studies on alkyl-substituted, heteroaromatic carbonitriles -novel synthesis of thienoazines and benzoazines. Liebigs Annalen der Chemie 12: 1215-9, 1990 With A.M. Negm & A.W. Erian. Studies with alkylheteroaromatic pi-deficient compounds – novel synthesis of thieno[3,4-d]pyridazines and phthalazines. Liebigs Annalender Chemie 12: 1255-6, 1989 With A.G. A Elagamey, S.Z. Sawllim, F.M.A. Eltaweel et al. Nitriles in heterocyclic synthesis – novel syntheses of benzo[b]pyrans,naphtho[1 ,2-b]pyrans, naphtho[2,1-b]pyrans, pyrano[3,2-h]quinolines and pyrano[3,2-c]quinolines. Collection of Czechoslovak Chemical Communications 53(7):1534-8, 1988 With E.A.A. Hafez, A.G.A. Elagamey et al. Nitriles in heterocyclic synthesis – novel synthesis of benzo[c]-coumarin and of benzo[c] pyrano[3,2-c]quinoline derivatives. Heterocycles 26(4):903-7, 1987 With R.M. Abdelmotaleb, M. Mustafa et al. Studies on heterocyclic enamines – new syntheses of h-4-pyranes, pyranopyrazoles and pyranopyrimidines. Journal of Heterocyclic Chemistry 24(6):1677-81, 1987 With G.E.H. Elgemeie, M.M.M. Sallam, S.M. Sherif et al. A novel synthesis of 4-h-thiopyrans – unexpected products of reaction of cyanothioacetam ide with cinnamon itrile derivatives. Heterocycles 23(12): 3107-10, 1985 With H.A. Elfahham, F.M. Abdelgalil, Y.R. Ibraheim et al. Activated nitriles in heterocyclic synthesis – a novel synthesis of pyrazolo[1,5-a]pyrimidines and pyrano[2,3-c]pyrazoles. Journal of Heterocyclic Chemistry 20(3): 667-70, 1983 With H.A. Elfahham, S.A.S. Ghozlan et al. Activated nitriles in heterocyclic synthesis – a new procedure for the synthesis of pyrimidine-derivatives. Journal of the Chemical Society – Perkin Transactions 1(11):2667-70, 1982 With S.M. Fahmy, N.M. Abed, R.M. Mohareb et al. Activated nitriles in heterocyclic synthesis – novel synthesis of pyridazines, pyridines, andisoxazoles. Synthesis 6: 490-3, 1982 With H.A.F. Daboun, S.E. Abdou, M.M. Hussein et al. Activated nitriles in heterocyclic synthesis – novel syntheses of pyrrolo[1,2-c]imidazole and pyrano[2,3-d]imidazole derivatives. Synthesis 6: 502-4, 1982 With M.R. H. Elmoghayar, M.K.A. Ibraheim, A.H.H. Elghandour et al. A novel synthesis of thiazolo[2,3-alpha]pyridine derivatives. Synthesis 8: 635-7, 1981 With S. Abdou, S.M. Fahmy. K.U. Sadek et al. Activated nitriles in heterocyclic synthesis – a novel synthesis of pyran o[2,3-c]pyrazoles. Heterocycles 16(12): 2177-80, 1981 With M. Riffaat. H. Elmoghayar et al. Reaction of malononitrile with thioglycolic acid – novel procedure for the synthesis of thiazolone derivatives. Journal of Heterocyclic Chemistry 16(8):1541-3, 1979 With S.M. Fahmy, E.A.A. Hafez et al. Pyrimidine-derivatives and related com pounds – novel synthesis of pyrimidines, pyrazolo[4,3-d]pyrimidines and isoxazolo[4,3-d]pyrimidine. Journal of Heterocyclic Chemistry 16 (6):109-11, 1979 With M.R.H. Elmoghayar, E.M. Kandeel et al. Reactions with heterocyclic diazonium salts – new routes for synthesis of pyrazolo[1,5-c]-1 ,2,4-triazoles and pyrazolo[1 ,5-c]-as-triazines. Journal of Heterocyclic Chemistry 14(2):227-30, 1977 With E.M. Kandeel, E.M. Zayed et al. Pyrimidine-derivatives and related compounds. 6. Novel synthesis of 3,5-diacetam idopyrazole and of 2-aminopyrazolo[1,5-a]pyrim idines. Journal of Heterocyclic Chemistry 14(1):155-7, 1977 With D.H. Fleita & M.R. Elmoghayar. Reactions with beta-cyanoethylhydrazine .2. Synthesis of some 4,5,6,7-tetrahydropyrazolo[1 ,5-a]pyrimidine derivatives. Tetrahedron 31(1): 63-7, 1975 LINKS http://www.mhelnagdi.com
Mohamed Ahmed El-Nesr
Mohamed Saad Ahmed El-Nesr, Egyptian nuclear physicist (1934 – Performed discoveries on properties and structures of atomic nucleus Co-authored many papers with his wife Ekbal Bashandy SOME BIBLIOGRAPHY With E. Bashandy. Internal conversion coefficients of the K-forbidden M1 transitions in Tm169. Atomkernenergie 22(1):59-61, 1973 With E. Bashandy. Inner conversion process of electric dipole in Hf180 and W182. Z. Physik 265:313-23, 1973 With G.M. El Sayad. Studies on gamma decay of Hf180. Tokyo Sugaku Kaisya Zasshi 24(3):610-4, 1968 With M.R. El Aassar. Study of Er171 decay by means of electron-gamma coincidence technique. Eur. Phys. J. 189:138-50, 1966 With E. Bashandy. Beta-gamma directional correlation in the decay of 20Hg3. Arkiv Fysik 25, 1964 With E. Bashandy & A.H. El Farrash. Internal conversion coefficients of the transitions in W182. Nuclear Physics 52:61-78, 1964 With Z. Grabowski & E. Bashandy. Gamma-gamma directional correlation in W182. Arkiv Fysik 23, 1963 With E. Bashandy & S.C. Pancholi. Half-lives of the 67.7, 100 and 222KeV transitions in W182. Nuclear Physics 41:346-52, 1963 With E. Bashandy. A measurement of the lifetime of the first excited state in Er166. Arkiv Fysik 22 (1962) With Z. Grabowski & J.E. Thun. A search for nuclear structure effects in Tm169. Z. fur Physik 167:111-22, 1962 With E. Bashandy & T.R. Gerholm. Experimental evidence for anomalous beta-gamma directional correlation in Au198. Z. fur Physik 166:119-21, 1962 With E. Bashandy. Energy dependence of beta-gamma directional correlation in the decay of Lu177. Eur. Phys. J. 167:100-10, 1962 With T.R. Gerholm & R. Othaz. Improved experimental methods for electron gamma directional correlation measurements. Arkiv Fysik 21, 1962 With E. Bashandy. Conversion coefficient measurement of the 426KeV pure E2 transition Hg196. Nuclear Physics 31:177-84, 1962 With E. Bashandy. The decay of Lu177 to Hf177. Nuclear Physics 31:128-38, 1962 With J.E. Thun, Z. Grabowski, W.D. Hamilton et al. Angular correlation measurements in Hf177. Nuclear Physics 29:13-20, 1962 With J.E. Thun, Z. Grabowski et al. Possible nuclear structure effects in Lu175. Nuclear Physics 29:1-12, 1962 With E. Bashandy. Lifetime measurements of the first excited states in Os186 and Os188. Nuclear Physics 34:483-90, 1962 With D.A. Mahmoud. Analysis of scintillation spectrometer observations of Co60 and Na24 gamma radiation through cadmium. Radiat. Res. 14:17-22, 1961 With R. Othaz. A study of beta-gamma directional correlation in the decay of Au199. Nuclear Physics 27:507-15, 1961 With M.G. Mousa. K-shell conversion coefficient of the 412 KeV pure transition in Hg. His wife, Ekbal Khedr Bashandy, physicist (Minia, United Arab Republic 09 March 1934 – Authored Methods for the measurements of sub-nanoseconds lifetimes of low energy nuclear levels