Day: 2 مايو, 2020

Model 1 (A)    Ketone bodies and ketolysis (B)    Isolated systems in polynuclear hydrocarbons (synthesis and properties of three examples). (C)    Electrophilic aromatic substitution in pyridine and pyrrole. (D)    Oxidation- reduction reactions of monosaccharides (aldoses and ketosis) Model 2 (A)    Diabetes mellitus (B)    Naphthalene (structure and synthesis). (C)    Electrophilic and nucleophilic aromatic substitution in pyridine.   […]

1 –   As the demand for motor gasoline increased attention was directed to manufacture of gasoline of high-octane number via polymerization and alkylation processes. 2 –   Sulphur compounds have bad effects on the different fractions of petroleum oil. So, sweetening and desulphurization are important treating processes for oil refinery 3 –   Pesticides are chemical agents […]

1-Impact of Leishmaniasis on human and the diagnosatic methods of the different species belonging to the genus Leishmania. Microbial infections and protozoan diseases in Mollusca 2-Larval forms of Digenetic Trematodes with emphasis on the role of Molluscan hosts in its transmission. Host parasite relationship: Effect of parasites on the host fecundity, Longevity and Pathological changes […]

1. Types of biomes, can a new biome type emerge in the future? _ The blood? 2. Factors that limit distribution of any animal population. _ The essential of the cardiovascular system? 3. “Density is an important population feature and is affected by other factors” Discuss with examples? _ The Digestive system and the significance […]

   1 – Pollen grains in lower and vascular plants   2 – Evolution in in lower and vascular plants  3 – Importance and applications of palynology

1 – Edible mushrooms and Rickettsia  2 – Freshwater ascomycetes and Penicillin production 3 – Endophytic fungi and Cephalosporin production

1 – Enzymes catalyze genome replication and  structure formation in viruses. 2 –  Introduction to viruses and enzymes. 3 – Role of enzymes on viral infection.

1 – Factors involved in phytoplankton growth.  2 – Effect of pollution on algal growth, and uses of algae in water treatment and biodiesel production. 3 – Eutrophication, algal blooms and allelochemlcals in aquatic environments.

1.      Optical Activity “Chirality” of Organic Molecules. 2.      Stereochemistry of cyclohexane derivatives. 3.      Utility of Ethyl acetoacetate (EAA) in Organic synthesis. 4.      As the demand for motor gasoline increased attention with directed to manufacture of gasoline of high-octane number via polymerization and alkylation processes. 5.      Sulfur compounds have bad effects on the different fractions of […]

1 – Chemistry of five-membered ring heterocycles with one hetero atom: Synthesis, reactions and applications. 2 – Chemistry of six-membered ring heterocycles with one hetero atom: Synthesis, reactions and applications. 3 – Chemistry of five-membered ring heterocycles with two hetero atoms: Synthesis, reactions and applications. 4 – Chemistry of five-membered ring heterocycles with two hetero […]

Model 1: (A)     Factors affecting distribution and mobility of electrons in bonds and at individual atom. (B)     Electrophilic aromatic substitution reactions of benzene. Model 2: (A)    Substitution Reactions and its types. (B)    Geometrical isomerism (E and Z system) Model 3: (A)  Addition reaction and its types. (B)   Enantimers Model 4: (A)    Elimination reaction and its […]

Search No. 1 write on:    (i)      Rearrangement with change in Carbon Skeleton and resonance. (ii)   Aromaticity and electrophilic substitution in aromatic compounds. Search No. 2 Write on:   (i)      Possible mechanism of elimination reactions and hyperconjugation. (ii)   Acidic and basic character of organic compounds. Search No. 3 Write on:   (i)      Possible mechanism of […]

  موضوعات الابحاث في مقررات الفصل الدراسى الثاني 2019/2020م اضغط على الرابط التالى https://www.sohag-univ.edu.eg/facsci/?p=22161