Abbreviation: Afr. J. Biotechnol.
Start Year: 2002
Page 461 of 583, showing 20 records out of 11646 total, starting on record 9201, ending on 9220
DOI: 10.5897/AJB2009.000-9091[Article Number: 53C471D8055]
A case-control study was carried out in 3 highly endemic regions of Côte d’Ivoire to study risk factors for Buruli ulcer. A case was defined as a Buruli ulcer occurring less than one year before the date of survey, resident in one of the regions investigated and there was no history of Buruli ulcer illness. Controls were selected from the general population by a two stage cluster sampling method.... Read more.
DOI: 10.5897/AJB2009.000-9092[Article Number: 072D5C98073]
In this study, anti-proliferative and apoptotic effects of paclitaxel, which is itself an anti-chemotherapeutic agent, to FM3A cell line originated from Mouse mammary carcinoma at 7 different doses were examined. Seven different doses of paclitaxel (P1 = 3 nM, P2 = 7.5 nM, P3 = 15 nM, P4 = 30 nM, P5 = 60 nM, P6 = 120 nM, P7 = 240 nM) were administered to cells for 24 and 48 h. Growth rate measurements showed... Read more.
DOI: 10.5897/AJB2009.000-9093[Article Number: E30C7F98094]
The aqueous and alcoholic extract of fresh Berberis aristata DC roots, as well as aqueous extract of dried roots were compared for their antibacterial and antifungal activities by the disc diffusion method. All three extracts showed wide antibacterial activity against Gram-positive bacteria. Among the Gram-negative bacteria tested, the antibacterial activity was limited to Escherichia... Read more.
DOI: 10.5897/AJB2009.000-9094[Article Number: D78E4898115]
Dual Component Removable Partial Denture (DuCo RPD) is composed of a double base; lower and upper. The lower base, where the artificial teeth are attached, acts as a support and is in contact with the alveolar ridges and oral mucosa. Clasps are designed on the upper base, which acts towards the retention and stabilization of the denture. This study aims to compare the practicality and physiological changes... Read more.
DOI: 10.5897/AJB2009.000-9095[Article Number: 17459078142]
Extraction parameters of polysaccharide from Portulaca oleracea L. (POP) and antidiabetic activity of POP on alloxan induced diabetic mice were studied. Betterextraction parameters of POP were obtained by the single factor test, as follows: extraction temperature 95°C, extraction time 5 h, and ratio of solvent to raw material40.... Read more.
DOI: 10.5897/AJB2009.000-9096[Article Number: 2F1236B8155]
The study was designed to compare the hypoglycemic effects of coconut water extract of Picralima nitida seeds to that of Daonil in alloxan-induced diabetic albino rats. Twenty five albino rats weighing between 170 - 200 g were randomly divided into five groups after allowing the rats to acclimatize for seven days and were made diabetic by intraperitoneal administration of 150 mg/kg of alloxan. The... Read more.
DOI: 10.5897/AJB2009.000-9097[Article Number: BE209908174]
The study consists of 10 patients with features suggestive of femoral hernia who had herniorrhaphy in our Hospital. The information collected include the age, sex, and occupation. Many years ago, femoral hernia was not common in Nigerian. This must have been due to the fact that the cases were under reported and most patients, who had femoral hernia, took native drugs and hoped for the best until it be comes... Read more.
DOI: 10.5897/AJB2009.000-9098[Article Number: BDAE78A8199]
This research was aimed to (1) evaluate genotypic yield performances of eight soybean genotypes, (2) determine their stability parameters and (3) estimate variance components and heritabilities of yield and yield-related traits. Eight soybean genotypes were evaluated in two locations (Mustafakemalpasa and Gorukle) of Southern Marmara Region, Turkey during two years (2000 and 2001), to identify patterns of... Read more.
DOI: 10.5897/AJB2009.000-9099[Article Number: F27DFA18213]
A study was conducted with hypocotyl, cotyledon and shoot tip of chilli as explants for regeneration on MS medium supplemented with different concentrations and combinations of auxins and cytokinins. Regeneration potential was determined by two ways. One is regeneration of shoot via callus formation from hypocotyls and cotyledon explants; another was direct shoot regeneration from shoot tip explant. The... Read more.
DOI: 10.5897/AJB2009.000-9100[Article Number: 4A8ED048240]
Six different NaCl levels (0, 5, 10, 20, 30 and 40 dS m-1) and two seed types (hulled and dehulled) of sunflower seeds of Opal, Shelly (Confectionary) and Pactol (Oily) were tested to determine the effects of the hull on salinity tolerance during germination. Germination percentage (%), mean germination time (day), root and shoot length (cm) were investigated. Kernel type seeds exhibited higher... Read more.
DOI: 10.5897/AJB2009.000-9101[Article Number: 8C7752E8260]
The obstacle to improving Crocus sativus is its sterility caused by being triploid. Thus, the discovery of the new variant of saffron with increased number of stigmas was welcomed as a reason for improving its yield. The study of development and the process of budding of the corm of saffron showed that these flowers occur by fusion of two or more flowering buds on one corm. Cytological and... Read more.
DOI: 10.5897/AJB2009.000-9102[Article Number: 74A74C18280]
The study determined the consumption patterns and intra-household roles in the production, processing and marketing of soyabeans in the Northern Agricultural Zone of Benue State, Nigeria. A structured interview schedule was used to collect data from a sample of 80 randomly selected respondents from ten extension blocks. Findings indicated that majority (71.3%) of the households prepared their soyabeans farm... Read more.
DOI: 10.5897/AJB2009.000-9103[Article Number: D2CBD2C8298]
Narbon vetch (Vicia narbonensis L.) is an important forage species among vetches of central Europe, Mediterranean, Near East, Ethiopia, central Asia and India. The study reports in vitro micropropagation of narbon vetch using cotyledon node, shoot tip and zygotic embryo explants on MS medium containing 0.25, 0.50, 0.75 and 1.00 mg/l BAP. The highest number of 4.42 shoots was recorded on... Read more.
DOI: 10.5897/AJB2009.000-9104[Article Number: 87586E78315]
High temperature stress is the second most important stress, which can strike crop plants at any time and impose severe limitations on crop growth and development. Developing crop plants with improved thermotolerance can mitigate the adverse effects of heat stress. However, a thorough understanding of physiological responses of plants to high temperature and mechanisms involved for thermotolerance is... Read more.
DOI: 10.5897/AJB2009.000-9105[Article Number: C3FCF828328]
This study was to determine whether the vigor of the Haloxylon persicum seeds can be maintained at a higher level and their storage characteristics can be improved by ultra-dry storage. Moisture content of H. persicum seeds was dried to 7.62, 6.73, 5.23, 4.24, 3.24 and 1.02% in a desiccating container with silica gel, and stored at 25, 4 and -20°C for 12 months. The results showed that... Read more.
DOI: 10.5897/AJB2009.000-9106[Article Number: 8D8D88A8336]
The present study examines the effect of explant age and various concentrations of kinetin and BAP on somatic embryogenesis and organogenesis in Solanum trilobatum L. MS medium fortified with 11.1 µM BAP + 13.95 µM KN produced highest frequency of embryogenesis (97.3%) and average number of multiple shoots (48.4 ± 1.33) from cotyledonary leaf explants at two opened leaves... Read more.
DOI: 10.5897/AJB2009.000-9107[Article Number: 2F8FDD98347]
Vernonia galamensis, whose seeds can be used to produce high-demand, environmentally friendly oil, can stimulate the economy of a country like Eritrea. The seed from the plant contains oil rich in epoxy fatty acids. A potential market use is as a drying agent for resin paints and can form clear, tough, rubbery plastics or coatings on metal. The general objective was to develop vernonia as a viable industrial... Read more.
DOI: 10.5897/AJB2009.000-9108[Article Number: 67CDB3F8355]
The effects of varying levels (0, 110, 220, 330, 440, and 550 kg P/ha) of phosphate application on some growth and yield parameters of African yam bean were studied. Plant dry weight under 550 kg P/ha treated soils with values ranging from 13.79 to 16.32 g per plant significantly (<0.05) differed from those of the control treatment, (12.79 g). Grain yield was enhanced following increased phosphate... Read more.
DOI: 10.5897/AJB2009.000-9109[Article Number: 79F03C58370]
Shock load studies are essential to investigate the suitability of biocontactors in degradation of pollutants. In the present work, the degradation of phenol by immobilized Nocardia hydrocarbonoxydans in a spouted bed contactor was conducted. Granular activated carbon (GAC) and polymer beads were tested for the immobilization of cells of N. hydrocarbonoxydans-NCIM 2386. Initially, batch... Read more.
DOI: 10.5897/AJB2009.000-9110[Article Number: 3ED84AD8385]
The root, stem bark and leaves of Bridelia ferruginea, which have some ethnomedicinal applications were investigated for their action against some disease causing microorganisms. Phytochemical screening revealed the presence of alkaloids, tannins, saponins, steroids, flavonoids, anthraquinones and phlobatannins (mostly in root and stem bark). The antimicrobial screening of the crude methanol extract... Read more.
Page 461 of 583, showing 20 records out of 11646 total, starting on record 9201, ending on 9220