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Physical And Chemical Characteristics Of Water In Selected Locations In Lake Victoria, Tanzania, M A Kishe

Tanzania Journal of Science

A study conducted during the period of March/April 2002 aimed at measuring physical and chemical parameters in Tanzanian portion of Lake Victoria. Temperature and conductivity values were homogeneous among and within the study stations. Levels of dissolved oxygen (DO) ranged from 4 - 9 mgl-1 and there was significant difference between stations (P < 0.05). Water transparency was poor (< 2 m secchi depth) and differed from one sampling station to another. Ammonium nitrogen (NH4+-N), with few exceptions, showed the highest concentrations both at the bottom and near-surface followed by total phosphates (TP), nitrate nitrogen (NO2+NO3--N), nitrite nitrogen (NO2--N) and Soluble Reactive Silicon (SRSi). Concentrations of NH4+-N, TP and SRSi were high at bottom waters and the reverse was true for NO2+NO3--N and NO2--N. Differences in nutrients and physical water parameters among sampling stations were statistically significant (P < 0.05). However, temperature and nutrient levels at studied areas were higher than that of 50 years ago and the trend reversed for DO and transparency. This indicates that Lake Victoria is receiving organic materials from the catchment area leading to the decline of water quality. Long-term efforts for rehabilitation, conservation and sustainable management of the lake are suggested.

Levels Of Pesticide Residues And Metabolites In Soil At Vikuge Farm, Kibaha District, Tanzania – A Classic Case Of Soil Contamination By Obsolete Pesticides, M A Kishimba, M J Mihale

Tanzania Journal of Science

The paper reports on the state of soil contamination by obsolete pesticides at Vikuge State Farm, Coast Region, Tanzania, where, in 1986, a 170 m3 “donation” of partially expired pesticides were stored in an open shed that eventually collapsed. Analyses of soil samples collected in 2000 from the old storage site at the farm for 80 different pesticide residues and metabolites have revealed alarmingly high concentrations of pesticide residues to qualify Vikuge as one of the most contaminated sites in the world. Most of the residues found in the soil at high concentrations were organochlorines, their concentrations being up to …

Assessment Of The Accuracy Of Approximate Methods In The Analysis Of Plane Frame Structures, I Rubaratuka

Tanzania Journal of Engineering and Technology (TJET)

pproximaic methods of analysis are widely used in the analysis OJ' frames for preliminary design due to their simplicily as compared to exact analysis meth o ds Ough they a re nol as accurate. In this paper. the methods Of hinges and portal frame are described and have been used to analyze a statically indeterminate frame by taking inro account the bending stiffness of the frame members. The obtained results are comparable Io the magnitudes of forces determined by exact methods Of analysis.

Fall Commencement [Program], December 18, 2004, University Of Northern Iowa

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

Phylogenetic Relationships Of African Microhylid Frogs Inferred From Dna Sequences Of Mitochondrial 12s And 16s Rrna Genes, Simon P. Loader, David J. Gower, Kim M. Howell, Nike Doggart, Mark-Oliver Rödel, Barry T. Clarke, Rafael O. De Sá, Bernard L. Cohen, Mark Wilkinson

Biology Faculty Publications

The phylogenetic relationships of microhylid frogs are poorly understood. The first molecular phylogeny for continental African microhylids is presented, including representatives of all subfamilies, six of the eight genera, and the enigmatic hemisotid Hemisus. Mitochondrial 12S and 16S rRNA sequence data were analysed using parsimony, likelihood and Bayesian methods. Analyses of the data are consistent with the monophyly of all sampled subfamilies and genera. Hemisus does not nest within either brevicipitines or non-brevicipitines. It is possibly the sister group to brevicipitines, in which case brevicipitines might not be microhylids. Phrynomantis and Hoplophryne potentially group with non-African, non-brevicipitine microhylids, in …

Collective Security With A Human Face: An International Legal Framework For Coordinated Action To Alleviate Violence And Poverty, Jennifer Moore

Faculty Scholarship

Part I of this article will explore some of the diverse theoretical and cultural roots of the human security concept set forth in the U.N. Charter, as well as the limited historical impact of the human security concept in global affairs since the United Nation's birth. Part II confronts the negative impact of the "War against Terrorism" on the war against poverty by linking recent developments in Iraq and the Great Lakes Region of Africa. Finally, Part III analyzes the international law arguments supporting a legal obligation to promote human security in the U.N. Charter, various human fights instruments, and …

A Prayer For Marie: Creating An Effective African Standby Force, Mike Denning

The US Army War College Quarterly: Parameters

No abstract provided.

The Missouri Miner, October 21, 2004

The Missouri Miner Newspaper

No abstract provided.

V. 72, Issue 5, October 15, 2004 [Publication Says V. 75]

Archway (1946-2020)

No abstract provided.

Capitalism And Freedom — For Whom?: Feminist Legal Theory And Progressive Corporate Law, Kellye Y. Testy

Law and Contemporary Problems

Progressive corporate law has the potential to realign corporate activity and market economies with human benefit. The present state of disruption in the economy is a key moment: with disruption comes the opportunity for change.

September 2004, Inland Empire Business Journal

Inland Empire Business Journal

News and Features

Got Golf? 1

Politics and Your Portfolio 1

First Laparoscopicc Donor Nephrectomy Is Performed at ARMC 1

Pomona Host Lions Club Vision Center 3

Survey: U.S. Business Leaders Hiring Expectations on the Rise 3

Mortgage Association Defines Predatory Lending 23

AAF National President Speaks to the Inland Empire Ad Club 31

Columns

Close-Up 6

Corporate Profile 7

Law 8

Investments & Finance 9

Opinions/Commentary 10

Computer/Technology 13

Managing 15

Corner on the Market 16

Getting Organized 17

Inland Empire People 18

Executive Time Out19

SBA Lending 20-21

Resource Directory 24

Financial Institutions 25-29, 32

Second Page 1 …

Republic Of Kenya Report Of The Task Force On The Establishment Of A Truth, Justice And Reconciliation Commission, Makau Mutua

Buffalo Human Rights Law Review

No abstract provided.

Technical Program For 6th Annual Bird Strike Committee Meeting, Baltimore 2004

Bird Strike Committee-USA/Canada Joint Annual Meeting: 6th (2004)

The Technical Program has 36 oral presentations and 20 Poster Presentations.

Shaping U.S. Policy On Africa: Pillars Of A New Strategy, Johnnie Carson

Strategic Forums

In the four decades since most African states achieved independence, the continent has never been a foreign policy priority for the United States. During the early years of American engagement with Africa, Washington focused its attention on preventing communist countries from gaining major military bases or monopolistic concessions over any of the continent’s important strategic minerals. Although the United States provided large amounts of development assistance and food aid to a number of African states, most American interest and support was directed toward African countries and leaders who were regarded as Cold War allies. In those countries still struggling for …

Household-Level Impacts Of Dairy Cow Ownership In Coastal Kenya, Charles F. Nicholson, Philip K. Thornton, Rahab W. Muinga

Agribusiness

This study uses heteroskedastic Tobit and Censored Least Absolute Deviations models to examine the impacts of dairy cow ownership on selected outcomes for a sample of 184 households in coastal Kenya. The outcomes examined include gross household cash income, gross non-agricultural income, consumption of dairy products, time allocated to cattlerelated tasks, number of labourers hired and total wage payments to hired labourers. The number of dairy cows owned has a large and statistically significant impact on household cash income; each cow owned increased income by at least 53% of the mean total income of households without dairy cows. Dairy cow …

Aku Newsletter : July 2004, Volume 5, Issue 2, Aga Khan University

The Aga Khan University Newsletters

No abstract provided.

Conflict Between State Legal Norms And Norms Underlying Popular Beliefs: Witchcraft In Africa As A Case Study, Mohammed A. Diwan

Duke Journal of Comparative & International Law

No abstract provided.

Universal Jurisdiction And The Concept Of A Fair Trial: Prosecutor V. Fulgence Niyonteze: A Swiss Military Tribunal Case Study, Joshua E. Kastenberg

University of Miami International and Comparative Law Review

No abstract provided.

Universal Jurisdiction And The Concept Of A Fair Trial Prosecutor V. Fulgence Niyonteze: A Swiss Military Tribunal Case Study, Joshua E. Kastenberg

Faculty Scholarship

It is the overall goal of this article to assess and evaluate concepts of universal jurisdiction and the interrelated right to a fair trial within the capsule of Prosecutor v. Niyonteze. This article analyzes the Niyonteze trial both within a framework of comparative law and against contemporary international law theories of universal jurisdiction and fair trial standards. In this article the term "due process" is subsumed into the larger concept of a fair trial. Likewise, a specific theory of universal jurisdiction is adopted. While universal jurisdiction and the right to a fair trial are often seen as exclusive areas, this …

Review Of The Product Development Process And Information Flow In The Manufacturing Industry: Problems And A Possible Wav Forward, E Opiyo

Tanzania Journal of Engineering and Technology (TJET)

No abstract provided.

Field Evaluation Of Soil Physical, Chemical And Hydraulic Property Changes Caused By Surface Water Application: A Case Study Of Ruaha-Mbuyuni Irrigation Scheme, Iringa, Tanzania, A Tarimo

Tanzania Journal of Engineering and Technology (TJET)

The conventional metering. pyepa.vmen,' and estimates have been used in power utilities industries. The svslen,'s hare experienced many problems such as power tampering, bill tampering, ./åiluve ro receive invoices by poner unlity customers and so on. Different technologies have been investigated To overcome the problems and recently it has been realized that remote 'nonitoring sysle•ns through powerline channel is a solution offhese problems in Tanami". However. 'he powerline network has been used for electrical power IO use i,' for implementation of remote monitoring: network must be setup and has to be modeled to accommodate communications. The contribution has analyzed 'he …

Introduction Of Seismic Resistance Features In The Construction Of Buildings In Tanzania, I Rubaratuka

Tanzania Journal of Engineering and Technology (TJET)

Available dara indicates that a greater part of Tanzania lies within a seismic region. to date most Of the buildings in the country have been designed and constructed without considering seismic loads. In addition no design codes have been developed to guide the seismic design for buildings and other related structures in Tanzania. This paper outlines the basic design concepts, which are useful during the design of seismic resistant buildings before the seismic design code is developed and adopted in Tanzania.

Derivation And Analysis Of Maximum And Conditional Work Of An Electromagnet In Relays With Small Gaps And Constant Armature Load, Dominic Chambega

Tanzania Journal of Engineering and Technology (TJET)

No abstract provided.

Mathematical Simulation Of The Influence Of Volatile Ma•Rrer Cloud On Heterogeneous Ignition Of Single Coal Particles, Hassan Ratal Ambula

Tanzania Journal of Engineering and Technology (TJET)

Asimple model has been developed to predict the heterogeneous ignition temperature for single coal particles under conditions of negligible, natural and forced convections. These conditions cause different sizes Of volatile matter cloud that surround the coal particle. The model is based on the ignition Of a single coal particle heated by irradiation from spot heaters in a cold (ambient) surrounding. Energy from the particle surface oxidation, volatile matter combustion and physical heating from the spot heaters are all included in rhe particle energv balance. General ignüion criterion is used to determine the ignition point. The agreement between the experimental and …

Probabilistic Load Flow For Mv Radial Distribution Networks Supplying Statistical Loads, B Kundy

Tanzania Journal of Engineering and Technology (TJET)

Aecurate load models are required Jör 'he computation OJ' load on Medium Voltage (MV) distribution net•.vovk.s_ Modern microprocessors in recent times have enabled researchers stunple and log domestic loads. The findings show that domestic loads are stochastic in nonwe and are best described bv u beta probability distribution [Herman et al. 1999]. The statistical evaluafion lhe consumer voltages requires description load currents al rhe lime e/ lhe system maximum demand. In this paper. an analytical 1001 computing voltage vegulation on MV distribution net-norks fi•eding statistical louds is presenled. To deal beta- distributed currents on MV distribution networks, new scaling factors …

Service And Network Modeling For Implementation Of Powerline Remote Monitoring Of Electrical Power Metering In Tanzania, J Anatory

Tanzania Journal of Engineering and Technology (TJET)

The conventional metering. pyepa.vmen,' and estimates have been used in power utilities industries. The svslen,'s hare experienced many problems such as power tampering, bill tampering, ./åiluve ro receive invoices by poner unlity customers and so on. Different technologies have been investigated To overcome the problems and recently it has been realized that remote 'nonitoring sysle•ns through powerline channel is a solution offhese problems in Tanami". However. 'he powerline network has been used for electrical power IO use i,' for implementation of remote monitoring: network must be setup and has to be modeled to accommodate communications. The contribution has analyzed 'he …

Importance Of Structural Fire Protection In Reinforced Concrete Buildings: A Case Study Of Ex-Nasaco Building In Dar Es Salaam, I Rubaratuka

Tanzania Journal of Engineering and Technology (TJET)

Reinforced concrete is concrete that is internally reinforced with steel bars or mesh. This gives rhe malerial the compressive strength of concrete along wilh the tensile strength Of steel. Reinforced concrete does not perform well under fire conditions as it spalls and loses strength. Heating Causes a failure Of the bond between concrele and sleels bars and this results in reduction of strength of concrele. Strength of concrete decreases With increase in temperature and increase With time. In order to provide fire resistance to structural components/elements in buildings, it is important Io consider the type of aggregates to be used. …

Evaluation Of Long-Shore Sediment Transport On The Kunduchi Beach Tidal Flat, Dar Es Salaam, Alfonse Dubi

Tanzania Journal of Engineering and Technology (TJET)

Kunduchi Beach is located approximately IO kilometres north Of Dar es Salaam City on the coasl of Mainland Tanzania. Currents and sediment concentrations were measured using a multi-sensor self-recording current meter. Waves Were measured using pressure gauges. Some physical features were visually measured. The general orientation of the shoreline is 330 degrees and the tidal flat is characterised by ripples. A1 aboul 150 m from the shoreline, ripples are 7-9 cm high and their wavelength is about 40 cm. Closer to the beach, ripple orientation is 350 degrees: ripple height is 5 cm and ripple wave length is 5 cm. …

Unh Law Alumni Magazine, Summer 2004, University Of New Hampshire School Of Law

UNH Law Alumni Magazine

No abstract provided.

Sovereignty And The Southern African Development Community, Benjamin Sirota

Chicago Journal of International Law

This Development will examine the provisions of the SADC's Mutual Defense Pact, analyze the extent to which it charts a new course for the organization and affects the SADC's traditional commitment to state sovereignty, and finally, evaluate whether the pact represents a positive, negative, or negligible change. Section II will place the pact within the context of the history and past efforts of the SADC. Section III will consider the pact itself, paying special attention to whether its provisions add up to any cohesive message. Section IV will discuss whether the pact is a move in the right direction for …