Browsing Journal Articles (PAS) by Title
Now showing items 55-74 of 258
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Charge extracting buffer layers in bulkheterojunction organic solar cell
(Springer, 2015-08-27)The effects of boron and nitrogen-doped carbon nanotubes (B- or N-CNTs) have been investigated as photoactive and charge extracting layer in bulk heterojunction organic solar cell composed of poly(3-hexylthiophene) [P3HT] ... -
Chemical Composition And Biological Activity Of Extracts From Conyza Species
(iosrjournals.org, 2023-04)The genus Conyza (Asteraceae) comprises about 50 species and found in the tropical and warm regions. Extracts from Conyza species have numerous pharmacological applications. The aim of this study was review the chemical ... -
Chemical composition and repellency of Nigella sativa L. seed essential oil against Anopheles gambiae sensu stricto
(2020-04)Malaria which is caused by the Plasmodium parasite and transmitted through bites of infected female Anopheles mosquitoes is an important public health concern in Africa. Insect repellents are commercially available but ... -
Chemical Composition of Essential Oils from Ocimum Kilimandscharicum: A Review.
(IOSR Journal of Applied Chemistry (IOSR-JAC).Volume 15, Issue 11 Ser. I (November 2022), PP 05-11, 2022)Traditional medicine plays an important role in disease especially in developing countries. The essential oils of Ocimum species showed anti-oxidant, anti-inflammatory, anti-cancer and insecticidal activities. Essential ... -
Chemical Constituents of Essential Oils from Three Eucalyptus Species Acclimatized in Ethiopia and Kenya
(2014-11)Essential oils obtained by steam distillation of three Eucalyptus species acclimatized in Ethiopia and Kenya were analyzed using GC and GC-MS. The species were Eucalyptus citriodora, Eucalyptus globulus and Eucalyptus ... -
Chemical Constituents of Ocimum Kilimandscharicum Guerke Acclimatized In Kakamega Forest, Kenya
(Chemical Society of Ethiopia, 2019-10)The genus Ocimum belongs to the Lamiaceae family and is made of almost 200 species of herbs and shrubs which have potential medicinal properties. The species are native to the tropical and temperate climate zones around ... -
Coffee phytochemicals and post-harvest handling—A complex and delicate balance
(Journal of Food Composition and Analysis 102 (2021) 103995, 2021)The balance between coffee phytochemicals and post-harvest handling is complex and delicate since these compounds are affected either negatively or positively. Studies have shown positive health effects arising from regular ... -
Comparing Bethesda System and Richart Score in the evaluation of cervical lesions among women on contraceptives attending Machakos Level V County Hospital in Kenya
(2021-03)Background of the study: Early detection of the precursor lesion before the invasive stage of cervical cancer prevents further damage to the neighbouring tissues and organs. Bethesda system which applies cytological ... -
A comparison investigation of optical, structural and luminescence properties of CdOxTe1−x and CdTexSe1−x nanoparticles prepared by a simple one pot method
(Elsevier, 2018-04)We present L-cysteine capped CdOXTe1−X and CdTeXSe1−X nanoparticles (NPs) prepared in one pot. The as-prepared CdOXTe1−X NPs were found to have a hexagonal crystal structure of CdTe with a cubic phase of CdO. There was, ... -
Copper extraction by wet chemical method
(Journal of Sustainable Mining, 2018) -
Copper Extraction Using Aluminum in Acidic Leachate Media
(IISTE, 2020)Copper is found in several minerals with varied elemental composition. For instance, copper minerals occur as chalcopyrite (CuFeS2), bornite (Cu5FeS4), chalcocite (Cu2S), covellite (CuS), cuprite oxide (Cu2O), and malachite ... -
Cyclooxygenase inhibitory compounds from Gymnosporia heterophylla aerial parts
(Elsevier, 2017)Gymnosporia heterophylla (Celastraceae) is an African medicinal plants used to treat painful and inflammatory diseases with partial scientific validation. Solvent extractions followed by repeated chromatographic purification ... -
DETERMINATION OF FATTY ACID AND TOCOPHEROL CONTENTS OF THE OILS OF VARIOUS PUMPKIN CULTIVARS (CUCURBITA SPP.) SEEDS
(2014)The pumpkin is a rich source of nutrients and has medicinal properties. However, owing to the perception that it is a traditional food and majority of the Kenyan populace being unaware of its high nutritional value it still ... -
Development of a multiplex PCR technique for simultaneous detection of sweet potato feathery mottle virus and sweet potato chlorotic stunt virus
(Edizioni ETS Pisa, 2010)Virus diseases, especially those caused by mixed infections, are among the economically most devastating diseases of sweet potato. Sweet potato virus disease (SPVD), which is caused by mixed infection of Sweet potato ... -
Dietary practices of pulmonary tuberculosis patients attending clinic at lodwar county and referral hospital, Turkana County, Kenya
(2017-01)Dietary practices and tuberculosis exacerbate each other such that when dietary intake is poor, the prognosis of TB is poor. TB, on the other hand, depresses the dietary intake by lowering the appetite and thereby influencing ... -
Dietary practices, habits and physical activity levels of the Swahili community, Kenya in relation to obesity and chronic diseases of lifestyle
(2018-11)Chronic diseases of lifestyle like diabetes mellitus and hypertension appear at greater rates in populations which consumed high fat, high calorie diets and engaged in low or no physical activity. Physical inactivity and ... -
Diversity of African forest mollusc faunas: what we have learned since Solem (1984)
(2005)We report on studies in Tanzania, Kenya, Uganda and South Africa over the past 22 years that have yielded estimates of land-snail diversity in the main forest types occurring in East and eastern southern Africa. ...