A5064152948- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Lepidoptera: Biology and Taxonomy
- Amphibian and Reptile Biology
- Glycosylation and Glycoproteins Research
- Retinoids in leukemia and cellular processes
- Proteoglycans and glycosaminoglycans research
- Plant Parasitism and Resistance
- Rangeland and Wildlife Management
- Wildlife Ecology and Conservation
- Plant nutrient uptake and metabolism
- Species Distribution and Climate Change
- Fire effects on ecosystems
- Osteoarthritis Treatment and Mechanisms
- Insect-Plant Interactions and Control
- Potato Plant Research
- Antioxidant Activity and Oxidative Stress
- Microbial Metabolites in Food Biotechnology
- Ergonomics and Musculoskeletal Disorders
- Monoclonal and Polyclonal Antibodies Research
- Insect behavior and control techniques
- Agricultural pest management studies
- Mediterranean and Iberian flora and fauna
- Skin Protection and Aging
- Polysaccharides Composition and Applications
University of Ghana
2014-2025
University of Massachusetts Chan Medical School
2013
University of Ulster
2006
Tufts University
1984-1985
Massachusetts Institute of Technology
1981
Cornell University
1978-1980
ABSTRACT Motivation Here, we make available a second version of the BioTIME database, which compiles records abundance estimates for species in sample events ecological assemblages through time. The updated expands 1.0 database by doubling number studies and includes substantial additional curation to taxonomic accuracy records, as well metadata. Moreover, now provide an R package (BioTIMEr) facilitate use database. Main Types Variables Included is composed one main data table containing 11...
An inventory of species diversity insects the Muni-Pomadze Ramsar site, with special reference to conservation concern, was carried out as part an evaluation changes in ecological character twenty years after designation. Samples were taken from two protected areas within wet (July), dry (January), and intermediate (June) seasons. Community characterized terms number accumulated, richness, Shannon-Weiner indices diversity, Pielou’s evenness, Bray-Curtis similarity. A total 134 families 19...
Kogyae Strict Nature Reserve, the only one in Ghana, was established to promote scientific research, particularly on how nature revitalizes itself after major disasters, and also check southward drift of savannah grassland. This study presents first comprehensive inventory species composition diversity insects Reserve. Insects were surveyed between September 2011 June 2012 capture end rainy season, dry season peak wet season. Samples taken from two sites within Dagomba Oku using various...
Abstract Mango farmers in Ghana are confronted with many pest problems like fruit flies, Sternochetus mangiferae (F.), and mealy bugs. Different management options available to mango farmers; however, the extent which they apply is not well known. A survey was conducted among 60 southeastern Ghana, from October–December 2015 season, find out level of knowledge practice insect used by farmers. The results showed that most use conventional insecticides control pests mango. Majority (30%) a...
<b>Aim:</b> To investigate whether two methods of measuring macular pigment—namely, heterochromatic flicker photometry (HFP) and resonance Raman spectroscopy (RRS)—yield comparable data. <b>Methods:</b> Macular pigment was measured using HFP RRS in the right eye 107 participants aged 20–79 years. Correlations between were sought regression models generated. recorded as counts optical density (MPOD). The average top three five compared with MPOD obtained at 0.5° eccentricity, an integrated...
Many human societies, rely on proceeds from mining of metals and fossil fuels for income generation as well resource supplies biodiversity. However, these activities are in conflict with threaten the sustainable utilisation conservation We used butterflies, a known bioindicator species surrogates to measure level change vegetation within Tarkwa Gold Mines (TGM) Ghana. Butterfly assemblages were sampled concession characterised terms diversity indices type. Transect counts, aerial netting...
Size exclusion high performance liquid chromatography analysis of a human monoclonal antibody (mAb) showed the presence new species that eluted with retention time between dimeric and monomeric antibody. Extensive characterization this species, referred to as "shoulder," indicated it was mAb containing an extra light chain had molecular weight approximately 175 kDa. The found be non-covalently associated Fab portion protein. relative amount shoulder (typically 1-3% total present) varied...
Binding between potato tuber invertase and its endogenous inhibitor followed second-order reaction kinetics. rates were diminished by the presence of various inorganic salts, MgCl(2) being especially effective. This effect was used in binding rate studies adding salt with sucrose to reduce during assay previously unbound activity. The optimal pH for about 4.8, similar catalytic activity invertase. temperature 45 C, approximately 5 C less than optimum Sucrose at concentrations as low 2...
Abstract Previous studies have shown that sulfated proteoglycans from human articular and epiphyseal cartilage were phosphorylated. These macromolecules contribute to the stiffness resiliency of this tissue. We demonstrate here phosphate moieties are an integral part proteoglycan subunits. Specifically, evidence is presented which indicates monomers contain 3 4 per core protein these appear exist as phosphoserine residues. Furthermore, data illustrate also contains more than 20 different...
Abstract. Tettey CND, Anderson RS, Kyerematen R. 2020. Rapid assessment of butterfly diversity two proposed Community Resource Management Areas (CREMAs) in the Western North Region Ghana: Implication for conservation. Biodiversitas 21: 3699-3706. are non-reserved land masses with local communities living them that contain important components biodiversity and open to free access. Biodiversity these off-reserve areas Ghana is fast depleting due unsustainable anthropogenic activities. The...
Kogyae Strict Nature Reserve, the only one in Ghana, was established to promote scientific research, particularly on how nature revitalizes itself after major disasters, and also check southward drift of savannah grassland. This study presents first comprehensive inventory species composition diversity insects Reserve. Insects were surveyed between September 2011 June 2012 capture end rainy season, dry season peak wet season. Samples taken from two sites within Dagomba Oku using various...
Despite their critical roles in sustaining the health and function of ecosystems, resource reserves are experiencing declines worldwide due to deforestation forest degradation. However, limited information on insect fauna within such diverse communities impedes development implementation conservation measures. Herein we determined composition, abundance, richness Ghana's Shai Hills Resource Reserve (SHRR). Insects were collected from three vegetation types (i.e., grassland, thicket, forest)...
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Abstract Serine residues, which are the sites of phosphorylation in proteoglycans, were demonstrated to be located on chondroitin sulfate–containing peptides. These peptides appeared derived primarily from sulfate–rich region proteoglycan core protein. The localization phosphate moieties was observed all experiments. retained after protein treated with either papain or trypsin. Two phosphopeptide preparations, subunits, extensively purified. 2 preparations shown by carbohydrate analysis free...
Abstract Purified proteoglycan subunits from human articular, bovine articular and nasal cartilages, a rat chondrosarcoma were phosphorylated in vitro by beef heart cAMP‐dependent protein kinase the presence of γ 32 P‐ATP. In these experiments, maximum 1.7 moles P incorporated per mole cartilage. Phosphorylation was dependent on cAMP. Analysis autoradiography revealed that serine residues core sites phosphorylation. Treatment with chondroitinase ABC alkaline phosphatase prior to reaction...
Calorimetric determination of urea, 507 -.The synthesis urea from glutamine by liver extract, 519 .Artom, Camille.A quantitative method for ethanolamine and serine as a basis the phosphatidyl in tissues, 585 --.Some data on distribution individual phospholipids rat tissues human plasma, 595 Asarkh,
Abstract Land use and land cover change (LULCC) are major drivers of global biodiversity loss. The conversion natural habitats into human-modified landscapes poses novel multifaceted environmental stressors to organisms, influencing their ecology, physiology, life history fitness. Although the effects LULCC have been studied extensively at community level, there is scant information about its effect on population individual characteristics. We assessed diet composition, body condition,...