Vol. 47 No. 2 (2021) | Tanzania Journal of Science

Published: 2021-05-27

Copper slag as a potential waste filler for polyethylene-based composites manufacturing

Aleksander Hejna, Paulina Kosmela, Mateusz Barczewski, Olga Mysiukiewicz, Adam Piascki

405-420

DOI:

10.4314/tjs.v47i2.1

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Upgrading biogas using Eburru zeolitic rocks and other adsorbent materials to remove carbon dioxide and hydrogen sulphide

James K Mbugua, Joseph M Mwaniki, Damaris M Nduta, Francis B Mwaura

421-431

DOI:

10.4314/tjs.v47i2.2

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Thermodynamic analysis of a variable viscosity reactive hydromagnetic couette flow within parallel plates

Anthony R Hassan, Olufemi W Lawal, Funmilayo F Amurawaye

432-441

DOI:

10.4314/tjs.v47i2.3

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Mapping of geological structural features in Lolgorien, Narok County, Kenya: Using hillshade analysis

Sammy O Ombiro, Akinade S Olatunji, Eliud M Mathu, Taiwo R Ajayi

442-456

DOI:

10.4314/tjs.v47i2.4

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Analysis and comparison of optical performance and collectible solar energy between multi-sectioned compound parabolic concentrator (CPC) and restricted exit angle CPC

Damasen Ikwaba Paul

457-471

DOI:

10.4314/tjs.v47i2.5

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Assessment of fluoride bioaccumulation potential in African Catfish (Clarias gariepinus) reared in fluoride rich water

Jophillene Bejumula, Revocatus L Machunda, Liliane J Pasape, Kelvin M Mtei

472-484

DOI:

10.4314/tjs.v47i2.6

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Amending traditional substrate rice straw with agroforestry tree foliage increases production cycle and nutritional value of Pleurotus floridanus

Samora M Andrew, John R Mbwambo

485-494

DOI:

10.4314/tjs.v47i2.7

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Count time series models for road traffic accidents in Tanzania Mainland

Amina S Msengwa, Florence D Ngari

495-506

DOI:

10.4314/tjs.v47i2.8

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A GATE-based Monte Carlo simulation of a dual-layer pixelized gadolinium oxyorthosilicate (GSO) detector performance and response for micro PET scanner

Leonid L Nkuba, Innocent J Lugendo, Idrissa S Amour

507-519

DOI:

10.4314/tjs.v47i2.9

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Hydrogeophysical investigation for the aquifers in part of Ilorin, Central Nigeria: Implication on groundwater prospect

Ayodele Kehinde Olawuyi

520-534

DOI:

10.4314/tjs.v47i2.10

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Mineralogical and geochemical characteristics of graphite-bearing rocks at Chenjere Area, south-eastern Tanzania: Implications for the nature and quality of graphite mineralization

Charles D Moye, Michael M Msabi

535-551

DOI:

10.4314/tjs.v47i2.11

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Geological controls on brine discharge in Itumbula Salt Dam within the Rukwa Rift in Momba District, Tanzania

Mwita S Maswi, Octavian Minja, Chakutema Batwenge

552-567

DOI:

10.4314/tjs.v47i2.12

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Coupled effects of hydrophilic nano silica oxide and anatase nano titanium oxide on strengths of oilwell cement

Petro E Mabeyo, Jun Gu

568-582

DOI:

10.4314/tjs.v47i2.13

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Effects of Xanthan gum on rheological properties of Aloe vera-Moringa leaf juice blends

Victor V Matabura, Leonard MP Rweyemamu

583-596

DOI:

10.4314/tjs.v47i2.14

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Evaluation of petroleum hydrocarbons contamination in soils and groundwater using electrical resistivity and hydrochemical methods-Case study: Ayetoro, Osogbo southwestern Nigeria

Mutiu A Fakunle, Muhydeen A Ibraheem, Wasiu B Agbaje, Luqman A Abidoye

597-608

DOI:

10.4314/tjs.v47i2.15

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Screening of aflatoxin-producing fungi in maize and groundnuts from three regions in Tanzania

Kusiluka Agape, Valence MK Ndesendo, Sartaz Begum

609-615

DOI:

10.4314/tjs.v47i2.16

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Spatial distribution patterns of the populations of two subterranean termites (Blattodea: Termitidae) in eucalyptus (Myrtales: Myrtaceae) plantations

Olaniyi T Alamu, Francis K Ewete, Ayangbade E Ayandokun, John A Ete

616-624

DOI:

10.4314/tjs.v47i2.17

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Pathological scanning of ochratoxigenic moulds impaired feed in vivo, towards conceptualizing their reverberations on different organs

Benjamin T Thomas, Omolara D Popoola, Moses O Efuntoye, Mercy O Coker, Ahmed O Tajudeen

625-636

DOI:

10.4314/tjs.v47i2.18

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Effects of rapid thermal annealing on the properties of room-temperature oxygenated DC sputtered zinc thin films for CZTS solar cells application

Emmanuel R Ollotu, Nuru R Mlyuka, Margaret E Samiji

637-647

DOI:

10.4314/tjs.v47i2.19

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Bacterial growth inhibitory effects of Calotropis procera’s latex, leaves and roots extracts

Marco Baluhya; Charles O Joseph

648-654

DOI:

10.4314/tjs.v47i2.20

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Larvicidal potency of Dioscorea sansibarensis leaf extract against vector mosquitoes: Anopheles gambiae s.s. and Culex quinquefasciatus

Anitha Philbert

655-663

DOI:

10.4314/tjs.v47i2.21

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Assessment of natural radioactivity and radiation hazards of building materials in Kinondoni District, Dar es Salaam, Tanzania

Huruma P Mammba, Vitus A Balobegwa, Alex P Muhulo, Peter A Pantaleo, Remigius A Kawala

664-673

DOI:

10.4314/tjs.v47i2.22

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Solving the University course timetabling problem using bat inspired algorithm

Ushindi Limota, Egbert Mujuni, Allen Mushi

674-685

DOI:

10.4314/tjs.v47i2.23

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Synergistic effects of halide ions and Acacia senegal gum on the corrosion inhibition of mild steel in sulfuric acid solution

Jovine Emmanuel, Joseph Buchweishaija

686-697

DOI:

10.4314/tjs.v47i2.24

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Application of optimal control to tuberculosis model with parameter estimations: Bayesian approach

Goodluck M Mlay, Alfred K Hugo

698-709

DOI:

10.4314/tjs.v47i2.25

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Application of linguistic/non-numeric fuzzy aggregation to the ranking of processed crops

David Koloseni

710-717

DOI:

10.4314/tjs.v47i2.26

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Levels of selected toxic and essential elements in fish and oysters from Western Indian Ocean, Coast of Tanzania

Daniel A Shilla, Shovi F Sawe

718-727

DOI:

10.4314/tjs.v47i2.27

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Mathematical analysis of harvested predator-prey system with prey refuge and intraspecific competition

Alanus Mapunda, Thadei Sagamiko

728-737

DOI:

10.4314/tjs.v47i2.28

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Determination of 40K, 226Ra and 228Ra concentrations with dose rates in crayfish from Ode Omi River and radiological implications to the consumers

Olusegun Sowole, Qasim Abolanle Adeniji , Muyideen O Olagunju

738-744

DOI:

10.4314/tjs.v47i2.29

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Synthesis and antimicrobial activities of some new sulfonyl phenoxides

Oluwaseyi B Ovonramwen, Bodunde J Owolabi , Abiodun Falodun

745-753

DOI:

10.4314/tjs.v47i2.30

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Integration of geophysics and remote sensing techniques in mapping zones mineralised with disseminated gold and sulphide minerals in Lolgorien, Narok County, Kenya

Sammy O Ombiro, Akinade S Olatunji, Eliud M Mathu, Taiwo R Ajayi

754-768

DOI:

10.4314/tjs.v47i2.31

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Sign language recognition using Kinect sensor based on color stream and skeleton points

Isack Bulugu

769-778

DOI:

10.4314/tjs.v47i2.32

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Evaluation of scatter suppression algorithm for X-ray exposure of soft tissue equivalent phantoms over nominal energy range using FLUKA code

Samson O Omondi, Innocent J Lugendo, Ramadhan R Kazema, Robert Kinyua

779-789

DOI:

10.4314/tjs.v47i2.33

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Influence of carbonitriding conditions on phase composition and residual stresses for 20MnCr5 low alloy steel

Richard J Katemi, Jeremy Epp

790-799

DOI:

10.4314/tjs.v47i2.34

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Assessment of the quality and quantity of organic matter in the Rufiji mangrove surface sediments using biochemical composition

Daniel A. Shilla

800-811

DOI:

10.4314/tjs.v47i2.35

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Biodiesel production by esterification of ricinoleic acid over a series of synthesized sulfated zirconia catalysts

Elianaso Elimbinzi, Stephen Nyandoro

812-825

DOI:

10.4314/tjs.v47i2.36

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Probabilistic seismic hazard assessment and site analyses of Arusha International Conference Centre (AICC), Arusha, Tanzania

Richard W Ferdinand

826-840

DOI:

10.4314/tjs.v47i2.37

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Variations in the effects caused by magnetic field on chlorophyll, nitrogen, calcium, and iron contents in species of vegetable plants

Olusegun O Alabi, Samuel O Sedara, Kafayat Adeyemi, Felix Oladejo, Mutiu A Fakunle, Funmilayo Ayedun

841-846

DOI:

10.4314/tjs.v47i2.38

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Investigation of some factors associated with utilization of maternal health care services by adolescent mothers in Tanzania

Elia Magwaja, Jacqueline Minja, Majige Selemani Budeba, Rocky R.J. Akarro

847-861

DOI:

10.4314/tjs.v47i2.39

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Probabilistic seismic hazard analysis for Northern Tanzania Divergence Region and the adjoining areas

Michael M Msabi, Richard W Ferdinand

862-876

DOI:

10.4314/tjs.v47i2.40

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