the composition of the essential oils of two african (“white” and “yellow”) olibanums available in the commercial market of isfahan (iran) was analyzed by gas chromatography (gc) and gc-mass spectroscopy methods. the main constituents of the “white” olibanum oil were alpha-pinene (34.8%), limonene (15.9%), alphathujene (9.0%), para-cymene (7.0%), myrcene (6.2%) and sabinene (6.0%). major compon...

the objective of this study was to highlight the postnatal development of the uterine tubes of the west african dwarf goat from birth to 28 weeks of age by gross examination and light microscopy. there was a caudal migration of the paired uterine tubes from behind the paired kidneys at birth to the pelvic inlet at week 8 of age. each uterine tube exhibited three segments namely; infundibulum, a...

in the present study, different activated carbons were prepared from carbonized african beech wood sawdust by potassium hydroxide activation. the activated carbons were characterized by brunauer–emmett–teller, scanning electron microscope, fourier transform infrared spectroscopy, and thermogravimetric analyzer. the phenol adsorption capacity of the prepared carbons was evaluated. the different ...

this paper presents a model for constrained multiobjective optimization of mixed-cropping planning. the decision challenges that are normally faced by farmers include what to plant, when to plant, where to plant and how much to plant in order to yield maximum output. consequently, the central objective of this work is to concurrently maximize net profit, maximize crop production and minimize pl...

Background: There is a renewed interest in job satisfaction among healthcare workers including nurses in Africa and the West African sub-region due to the perception that global shifts in the internal structures and employment practices are inducing changes in the ties that bind employees to their job. Therefore, it is necessary to examine various studies in order to establish ...

four west african dwarf (wad) grower bucks averaging 6 kg in weight and aged between 5-6 months of age were used in a digestive trial to determine the intake and digestibility of raw or processed pigeon pea seed meal based diets. the diets designated rpbd, spbd, tpbd and bpbd were formulated from cassava peel, palm kernel cake, brewers dry grain, bone meal and common salt to contain 15% of raw,...

background & aim: lumbar spinal stenosis (lss) is a common condition. this congenital or acquired stenosis has multiple etiologies. the goal of this study was to describe intraoperative pathoanatomic findings of lumbar spinal stenosis observed within a black african population. methods & materials/patients: it was a retrospective and descriptive study performed at departmental teaching hospital...

background although the link between psychological distress and altered cortisol level has been already shown; very limited information exists about this association among black youth. objectives we tested sex differences in predictive role of symptoms of anxiety during adolescence on annual decline in morning salivary cortisol levels in early adulthood among black youth. conclusions our findin...