Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2750

Table of Content: October 2008; 3(10)

October 2008

A paging design for mobile cellular internet enhanced by locality in user-behavior

  Mobile wireless communication is growing in scope and importance all around the world. The IP network is fast becoming the global network of choice for multimedia communications. Mobile IP network is also fast making its way to the consumer market. However, efficient and scalable mobility management is a key enabler in the mobile IP networks. Secondly, mobile terminals are portable devices that often depend...

Author(s): E. N. Onwuka

October 2008

Hepatitis B virus interacts with albumin precursor in vivo

  A range of proteins has been recognized as mediators/hypothetical receptors for hepatitis B virus (HBV), but the results are conflicting and inconclusive especially regarding their biological significance. This study was aimed at identifying a novel HBV-interacting protein which would provide a better understanding of its transport in blood, attachment, fusion and entry into hepatocytes. Serum samples...

Author(s): Saeeda Baig, Anwar Ali Siddiqui , , Shamim Mushtaq and Jawed Shafqat

October 2008

Effect of abattoir cow liquor waste on biogas yield of some agro-industrial wastes

  This study investigated the effect of abattoir cow liquor waste (CLW) on biogas production of some agro-industrial wastes. The wastes; brewery spent grain (BS), cassava waste water (CW) and carbonated soft drink sludge (CS) were combined with definite proportions of cow liquor waste to produce biogas under anaerobic digestion for a 25 day retention period. The wastes were combined in the ratios: CLW:BS (1:1),...

Author(s): Uzodinma, E. O. and Ofoefule, A. U.

October 2008

Stakeholders’ perceptions and application of biotechnology in agricultural industries in Swaziland

  Agriculture, forestry, and manufacturing contribute about 47.6% of Swaziland gross domestic product (GDP). A descriptive type of research was used to investigate the application of biotechnology in the agricultural based industries in Swaziland. Stakeholders were invited to a workshop where the participatory approach for data collection was used. Data were also collected by means of field...

Author(s): Dlamini, Abednego M, Dube, Musa A and Nkambule, Noah

October 2008

Independent and interactive effects of Mg2+ and Co2+ on some kinetic parameters of rat kidney alkaline phosphatase

  It is a known fact that alkaline phosphatase (ALP) is a metalloenzyme that requires zinc ion (Zn2+) and magnesium ion (Mg2+) for activity. Cobalt ion (Co2+) however has also been reported to stimulate its activity. The concentration-dependent effects of Mg2+ and Co2+ on rat kidney ALP activity was carried out over a range of 3.33 – 25.67 mM para-nitrophenyl phosphate (p-NPP) concentrations....

Author(s): R. O. Arise, F. F. Davies and S. O. Malomo

October 2008

Evaluation of the productivity of low cyanide cassava varieties in cassava/soybean intercrop

  The productivity and compatibility of low cyanide cassava (Manihot esculentaCrantz) intercropped with soybean (Glycine max Merril.) were evaluated in South-eastern Nigeria, in 2002/2003 and 2003/2004 cropping seasons. Significant (P<0.05) variations in growth and yield components of cassava and soybean were evident irrespective of crop varieties. Intercropping low cyanide cassava varieties of sparse...

Author(s): Eke-Okoro, O. N., Njoku ,D. N. and Ikeorgu J. G.

October 2008

Development and description of soil compaction on orchard soils in the Mekong Delta (Vietnam)

  The study conducted in the Vietnamese Mekong Delta (VMD) was to examine soil degradation and soil compaction in fruit tree plantations due to the impact of agricultural activities. The specific objective was to elucidate the impact of soil compaction on current and future production. Fruit trees are one of the most important components for the development of the delta. The plantation areas have increased...

Author(s): Pham Van Quang and Per-Erik Jansson

October 2008

Ab initio study of intramolecular hetero-Diels-Alder reaction of ABT-773

  Diels-Alder reaction is a known reaction in chemistry. Theoretical study of intramolecular hetero-Diels-Alder reaction of ABT-773 is the subject of the present research. Calculations have been performed in two method of Hartree-fock and B3LYP and by using 6-31G* basis set. The proposed transition state for the reaction was confirmed by DFT method, while the HF method has not been able to predict the...

Author(s): M. R. Housaindokht, M. R. Bozorgmehr, M. Roushani, A. Morsali and E. Noori-Abazari

October 2008

Seasonal variation of the growth, chemical composition and carrageenan extracted from Hypnea musciformis (Wulfen) Lamouroux harvested along the Atlantic coast of Morocco

  Hypnea musciformis is a common species of the Moroccan Atlantic coast. Both biology and chemical composition of the carrageenan extracted were studied on samples collected monthly during two years on the jetty of Mehdia in the Northwest of the country. The growth of the alga was at its maximum in summer and autumn. Chlorophyll a and R-phycoerythrin (maximum in winter) was the main pigments of the alga....

Author(s): Mouradi Aziza , Thiery Givernaud , Meryem Chikhaoui-khay and Laila Bennasser

October 2008

Extraction and potential application of caustic potash from kolanut husk, ugwu pod husk and plantain peels

  Caustic potash from kola nut pod husk (Cola nitida), ugwu pod husk (Teleferia occidentalis) and plantain peels (Musa paradisiaca) were extracted using combustion and leaching process with distilled water as the solvent. Yield observed at varying temperatures are 31, 23, 35% (at 300, 400, 500oC, respectively). Free caustic alkali contents, free fatty matter and chloride were a bit higher than the...

Author(s): Taiwo, A. A., Oluwadare, I., Shobo, A. O. and Amolegbe, S. A.

October 2008

Gross anatomical aspects of the gastrointestinal tract of the wild African giant pouched rat (Cricetomys gambianus)

  Ten matured African giant pouched rats of both sexes were used in this study. Their mean body weights were 1045.5 ± 110.6 g (standard error of mean, SEM) and their crown-rump body length was 24 ± 1.16 cm. The mean stomach weight and length were 28.81 ± 0.93 g and 20.3 ± 0.80 cm, respectively. The maximum width of the stomach varied between 3.13 ± 0.31 and 3.75 ± 0.28...

Author(s): M. N. Ali, O. Byanet, S. O. Salami, J. Imam, S. M. Maidawa, A. D. Umosen, C. Alphonsus and J. O. Nzalak

October 2008

Compositional analyses of the seed of sour sop, Annona muricata L., as a potential animal feed supplement

  The proximate composition of the seed and seed coat of sour sop (local name chap chap) were investigated with a view of highlighting the nutritional and industrial potentials of the seed. The result of the study revealed 27.34 and 11.4% of protein in the seed and coat, respectively. The percentage constitution of carbohydrate in the seed was 4.36 while that of the coat was 24.69%. There was no trace of oil in...

Author(s): Fasakin, A. O., Fehintola, E. O., Obijole, O. A. and Oseni, O. A.