Results 11 to 20 of about 164,232 (177)

Synthesis and Biological Evaluation of Mannich Bases of Isoxazoline Derivatives as Novel Anti-Microbial Agents

E-Journal of Chemistry, 2012
A novel series of compounds were synthesized by condensation reaction of substituted acetophenone (1a-b) with substituted aldehyde (2a-b) in presence of alcoholic sodium hydroxide to get intermediate chalcones (3a-c), which were further treated with ...
Pawar Sudhir, Chavan Rajashree, Bhosale Ashok   +2 more
doaj   +1 more source

Photochemical production and loss rates of ozone at Sable Island, Nova Scotia during the North Atlantic Regional Experiment (NARE) 1993 summer intensive [PDF]

, 1998
Three weeks of summertime surface‐based chemical and meteorological observations at Sable Island, Nova Scotia during the North Atlantic Regional Experiment (NARE) 1993 summer intensive are used to study instantaneous photochemical production and loss ...
Albercook, G. M., Blake, Donald R., Blake, N. J., Carroll, M. A., Duderstadt, Katharine A., Fehsenfeld, F. C., Feng, L., Forbes, G., Holloway, J. S., Parrish, D. D., Sillman, S., Wang, T.   +11 more
core   +3 more sources

Synthesis of Thienopyrimidines and their Antipsychotic Activity

E-Journal of Chemistry, 2010
A series of thienopyrimidines and related heterocycles were synthesized by refluxing related imidoyl chloride with primary and secondary amines under microwave irradiation and classical heating.
Chanchal Sharma, Swapnil Yerande, Rajashree Chavan, A. V. Bhosale   +3 more
doaj   +1 more source

Presence of the “Threatened” \u3ci\u3eTrimerotropis Huroniana\u3c/i\u3e (Orthoptera: Acrididae) in Relation to the Occurrence of Native Dune Plant Species and the Exotic \u3ci\u3eCentaurea Biebersteinii\u3c/i\u3e [PDF]

, 2018
Trimerotropis huroniana Wlk. is a “Threatened” species in Michigan and Wisconsin with a distribution limited to open dune systems in the northern Great Lakes region of North America.
Marshall, Jordan M, Storer, Andrew J
core   +2 more sources

Local Search and the Evolution of World Models

Topics in Cognitive Science, EarlyView., 2023
Abstract An open question regarding how people develop their models of the world is how new candidates are generated for consideration out of infinitely many possibilities. We discuss the role that evolutionary mechanisms play in this process. Specifically, we argue that when it comes to developing a global world model, innovation is necessarily ...
Neil R. Bramley, Bonan Zhao, Tadeg Quillien, Christopher G. Lucas   +3 more
wiley   +1 more source

Enjeux environnementaux et socio-économiques du cycle de sable extrait sur le lit d’écoulement des cours d’eau dans la vallée de Kwilu à Kikwit, RD Congo [PDF]

Revue de Géographie Tropicale et d’Environnement
Le sable est une ressource non renouvelable dont la demande pour assouvir les besoins de l’urbanisation à travers le Monde va croissant. L’extraction du sable sur les lits d’écoulement constitue un défi majeur environnemental, détruisant les niches ...
Olivier MUNDUKU MIDISHI; Dieudonné KIKOZOKOZO KIKOZOKOKOZO ; Steve BONDO BANZA ; Thérère KALELA ILUNGA ; Thérèse KILENSELE MUWELE ; Dieudonné MUSIBONO EYUL’ANKI ; Bias MPURU MAZEMBE
doaj   +1 more source

Perfil de las acciones de ataque de los atletas de sable 13-15 años de Camagüey

Ciencia y Deporte, 2021
El ataque constituye un elemento primordial en el proceso de preparación en aras de obtener los toches en la esgrima a sables dada la convención del combate y la jerarquía de las acciones técnico-tácticas.
Yexi Niurvis Salazar-Lebot, Luciano Mesa-Sánchez, Yaimara Peña-Peña   +2 more
doaj  

Spatial and temporal variablity of nonmethane hydrocarbon mixing ratios and their relation to photochemical lifetime [PDF]

, 1998
The relationship between temporal and spatial variability of C2-C8 nonmethane hydrocarbon mixing ratios and their HO lifetimes (τ) is presented for samples collected during the 1993 North Atlantic Regional Experiment (NARE) and from other urban and ...
Blake, DR, Blake, NJ, Fehsenfeld, FC, Goldan, P, Jobson, BT, Kuster, W, Niki, H, Parrish, DD   +7 more
core   +2 more sources

Synthesis and Evaluation of Some Coumarin Based Schiff's Bases as Potential Antimicrobial Agents'

E-Journal of Chemistry, 2012
A series of the title compounds 3-(4-(4, 5-dihydro-5-(substituted phenyl)-1H-3-pyrazolyl) phenylimino) methyl)-4-chloro-2H-chromen-2-one 5(a-g) have been synthesized. These compounds were characterized on the basis of their spectral (IR, 1H NMR) data and
Vishakha Bansode, Meenakshi N. Deodhar
doaj   +1 more source

Synthesis and Evaluation of Some Coumarin Containing Potential Antimicrobial Agents

E-Journal of Chemistry, 2012
A series of the Schiff’s bases incorporating coumarin and chalcone moeities, 3-(4-(4-(substituted phenyl)prop-1-ene-3-one) phenylimino) methyl)-4-chloro-2h-chromen-2-one 4(a-g) were synthesized as potential antimicrobial agents.
Sayali D. Kudale, Meenakshi N. Deodhar
doaj   +1 more source