Open Access. Powered by Scholars. Published by Universities.®

Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics

PDF

SelectedWorks

2012

Keyword
Publication

Articles 1 - 30 of 56

Full-Text Articles in Social and Behavioral Sciences

An Assessment Of The Effects Of Desertification In Yobe State, Nigeria, Jibril Musa Phd Dec 2012

An Assessment Of The Effects Of Desertification In Yobe State, Nigeria, Jibril Musa Phd

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

Desertification is one of the most serious environmental and socio-economic problems of our time. Desertification describes circumstances of land degradation in arid, semi-arid and dry sub-humid regions resulting from the climatic variation and human activities. The fundamental goal of this thesis was to assess the effects of desertification in Yobe State, Nigeria. The present threat of desertification in the sahel has reached an alarming stage where crops cultivation and animal rearing/grazing are no more productive, soil has lost its nutrient/fertility, various infrastructure had given way because of windstorm from the neighbouring Niger Republic and sand dunes had taken over. The …


Socio-Environmental Considerations At The Usuma Reservoir In Abuja, Nigeria, Fanan Ujoh Mr, James Ikyernum Mr, Olarewaju O. Ifatimehin Dr Dec 2012

Socio-Environmental Considerations At The Usuma Reservoir In Abuja, Nigeria, Fanan Ujoh Mr, James Ikyernum Mr, Olarewaju O. Ifatimehin Dr

Dr. Fanan Ujoh

Reservoirs are Man’s attempt towards water re-distribution from regions/seasons of abundance/surplus to regions/seasons of scarcity. This study focuses on socio-environmental impacts of the Lower Usuma dam in Abuja, on its four surrounding communities. Stratified random sampling technique was employed in the administration of a questionnaire to 200 respondents. Using descriptive statistics and the student t-test for the analysis, the study discovered that: (i) there has been no significant improvement in infrastructure provision by Government; (ii) cases of water-borne diseases are high; (iii) the communities have lost land for cultivation; and, (iv) the communities believe that the resettlement scheme is not …


Using Remote Sensing Data To Improve Rice Production In Kutigi, Niger State, Nigeria, Jibril Musa Phd, M B. Yunusa Dec 2012

Using Remote Sensing Data To Improve Rice Production In Kutigi, Niger State, Nigeria, Jibril Musa Phd, M B. Yunusa

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

This research work looked in the used of Remote Sensing to improve Agricultural production in Kutigi, Niger State. The aim of the study is to use remote sensing to improve rice farming activities in Kutigi, Niger State. It is very important to identify such methods to improve Agricultural production because experts are always interested in new researches and findings to better the standard of living in any environment. In view of this, Remotely-sensed data could be used or employed to elevate most of these agricultural problems in Kutigi through the following objectives: Using Landsat imagery to assess the present landuse …


Convex Combinations Of Quadrant Dependent Copulas, Martin Egozcue, Luis Fuentes García, Wing Wong, Ricardas Zitikis Nov 2012

Convex Combinations Of Quadrant Dependent Copulas, Martin Egozcue, Luis Fuentes García, Wing Wong, Ricardas Zitikis

Martin Egozcue

It is well known that quadrant dependent (QD) random variables are also quadrant dependent in expectation (QDE). Recent literature has offered examples rigorously establishing the fact that there are QDE random variables which are not QD. The examples are based on convex combinations of specially chosen QD copulas: one negatively QD and another positively QD. In this paper we establish general results that determine when convex combinations of arbitrary QD copulas give rise to negatively or positively QD/QDE copulas. In addition to being an interesting mathematical exercise, the established results are helpful when modeling insurance and financial portfolios.


Population Access To Waste Collection Services: Urban Vs Rural Areas In Romania,, Florin C. Mihai Nov 2012

Population Access To Waste Collection Services: Urban Vs Rural Areas In Romania,, Florin C. Mihai

Florin C MIHAI

This paper aims a comparative analysis at county level concerning urban and rural population access to sanitation services in the context of EU accession. Partially coverage of population to such services contributes to illegal dumping of waste generated and uncollected.Furthermore, waste management facilities are inappropriate, particularly in small cities or rural areas. Comparative analysis of urban vs. rural population served by waste collection services using thematic cartography highlights on the one hand the existing disparities within a county and on the other hand reflects the regional disparities across Romania.The demographic, socioeconomic and geographic differentiations between urban and rural areas amplify …


Vulnerability Of Mountain Rivers To Waste Dumping From Neamț County, Florin C. Mihai, Liviu Apostol, Adrian Ursu, Pavel Ichim Nov 2012

Vulnerability Of Mountain Rivers To Waste Dumping From Neamț County, Florin C. Mihai, Liviu Apostol, Adrian Ursu, Pavel Ichim

Florin C MIHAI

Lack of waste management facilities from mountain region often lead to uncontrolled disposal of waste on river banks polluting the local environment and damaging the tourism potential. Geographical conditions influences the distribution of human settlements which are located along the rivers and its tributaries. This paper aims to estimate the amounts of household waste generated and uncollected disposed into mountain rivers, taking into account several factors such as:proximity of rivers to the human settlements, the morphology of villages, length of river that crosses the locality(built up areas), local population, the access to waste collection services and waste management infrastructure. Vulnerability …


Improper Household Waste Disposal In Rural Territory.Case Study: Neamt County, Florin C. Mihai Nov 2012

Improper Household Waste Disposal In Rural Territory.Case Study: Neamt County, Florin C. Mihai

Florin C MIHAI

Open dumping of waste generated and uncollected is the most common option in waste management schemes from rural areas. Lack of sanitation services or rudimentary waste management systems favored this practice. This paper proposes a method to estimate the amounts of household waste uncontrolled disposed at local administrative unit level (commune) for 2003 and 2010. Based on estimating the amounts of waste generated and uncollected are introduced new indicators in the quantitative analysis taking into account the household waste composition, individual composting of biodegradable waste or recyclable waste from households for a more proper assessment of waste disposed. Usually household …


Variations In Climatic Parameters And Food Crop Yields: Implications On Food Security In Benue State, Nigeria., Emmanuel Adamgbe, Fanan Ujoh Oct 2012

Variations In Climatic Parameters And Food Crop Yields: Implications On Food Security In Benue State, Nigeria., Emmanuel Adamgbe, Fanan Ujoh

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

Agricultural production in Nigeria like in other developing countries is highly vulnerable to variations in climatic parameters which may have inverse or direct effect on the performance of food crops. This paper examines the patterns and trends of the variations in the climatic parameters and the implications of such variations on efficient yield rates of some food crops in Benue State using data on climatic variables (rainfall, temperature, sunshine) and the yield of some crops per hectare for 25 years (1986-2010). Data on the climatic variables were collected from the Nigerian Meteorological Agency, AirForce Base, Makurdi while the data on …


How Can Pacific Island Economies Benefits From The Advent Of Ict’S – Review Of Best Practices In Education, Deogratias Harorimana Sr Oct 2012

How Can Pacific Island Economies Benefits From The Advent Of Ict’S – Review Of Best Practices In Education, Deogratias Harorimana Sr

Dr Deogratias Harorimana

This paper explored implementation and use of information and communication technologies in Fiji, in order to gain insight into recent government initiatives to introduce computers and other ICTs for the community of Fiji. The focus of this paper in that it provided the framework for an in-depth exploration of e-learning centers around the country and the benefits from the advent of ICT’s in e-learning community centers in Fiji. Areas concentrated on are outcome of ICT’s in formal education to students and community as a whole in areas of agriculture, health, environment and infrastructure etc. The research sought understanding from the …


The Issue Of Internet Polling, Nick Nichols Oct 2012

The Issue Of Internet Polling, Nick Nichols

The Intellectual Standard

No abstract provided.


Rural Waste Management: Challenges And Issues In Romania, Liviu Apostol, Florin C. Mihai Oct 2012

Rural Waste Management: Challenges And Issues In Romania, Liviu Apostol, Florin C. Mihai

Florin C MIHAI

Rural areas of the new EU Member States face serious problems in compliance of EU regulation on waste management. Firstly, the share of rural population is higher and it has lower living standards and secondly, the waste collection services are poorly-developed covering some rural regions. In this context, open dumping is used as an appropriate waste disposal solution generating complex pollution. This paper analyzes the disparities between Romanian counties regarding the rural population access to waste collection services in 2008 which reflects the geographical distribution of rural dumpsites in 2009. It examines on one hand , the role of waste …


Technical Assistance, Knowledge Gatekeeping And Indigenous Knowledge: Re-Thinking The International Development Practice, Deogratias Harorimana Sr Sep 2012

Technical Assistance, Knowledge Gatekeeping And Indigenous Knowledge: Re-Thinking The International Development Practice, Deogratias Harorimana Sr

Dr Deogratias Harorimana

This paper presents results from a multi-disciplinary conceptual analysis of development theory and practice. It reviews issues raised and proposes a shift in the epistemology of possession towards an epistemology of practice which is guided by the following aspects (1) The consideration of the learning culture of parties involved, (2) the ability and willingness for decontextualisation of the knowledge by the source and (3) the ability to embedded it by recipients (embededness ), (4) the importance that is attached to knowledge of the host country as reflected through (5) Similarity in culture, values, understanding of context and knowledge bases; (6) …


Global Optimization Of Some Difficult Benchmark Functions By Cuckoo-Host Co-Evolution Meta-Heuristics, Sudhanshu K. Mishra Aug 2012

Global Optimization Of Some Difficult Benchmark Functions By Cuckoo-Host Co-Evolution Meta-Heuristics, Sudhanshu K. Mishra

Sudhanshu K Mishra

This paper proposes a novel method of global optimization based on cuckoo-host co-evaluation. It also develops a Fortran-77 code for the algorithm. The algorithm has been tested on 96 benchmark functions (of which the results of 32 relatively harder problems have been reported). The proposed method is comparable to the Differential Evolution method of global optimization.


Utility-Scale Solar Pv Development In The Six Southwestern States, Yao Yin Aug 2012

Utility-Scale Solar Pv Development In The Six Southwestern States, Yao Yin

Yao Yin

No abstract provided.


Environmental Impacts Of Stover Removal In The Corn Belt, Alicia English, Wallace E. Tyner, Juan Sesmero, Phillip Owens, David J. Muth Jr. Aug 2012

Environmental Impacts Of Stover Removal In The Corn Belt, Alicia English, Wallace E. Tyner, Juan Sesmero, Phillip Owens, David J. Muth Jr.

David J. Muth

When considering the market for biomass from corn stover resources erosion and soil quality issues are important to consider. Removal of stover can be beneficial in some areas, especially when coordinated with other conservation practices, such as vegetative barrier strips and cover crops. However, benefits are highly dependent on several factors, namely if farmers see costs and benefits associated with erosion and the tradeoffs with the removal of biomass. This paper uses results from an integrated RUSLE2/WEPS model to incorporate six different regime choices, covering management, harvest and conservation, into a simple profit maximization model to show these tradeoffs.


Back To The Future Of Green Powered Economies, Juan B. Moreno-Cruz, M. Scott Taylor Jul 2012

Back To The Future Of Green Powered Economies, Juan B. Moreno-Cruz, M. Scott Taylor

Juan B. Moreno-Cruz

The purpose of this paper is to introduce the concept of power density [Watts/m2] into economics. By introducing an explicit spatial structure into a simple general equilibrium model we are able to show how the power density of available energy resources determines the extent of energy exploitation, the density of urban agglomerations, and the peak level of income per capita. Using a simple Malthusian model to sort population across geographic space we demonstrate how the density of available energy supplies creates density in energy demands by agglomerating economic activity. We label this result the density-creates-density hypothesis and evaluate it using …


Towards Better Estimation Of Jump Diffusion Models, Richard H. Serlin Jul 2012

Towards Better Estimation Of Jump Diffusion Models, Richard H. Serlin

Richard H. Serlin

I discuss in-depth modern techniques for the estimation of Jump Diffusion models with suggestions for improvements. There is a heavy focus on intuition. I also point out examples of the use of improper techniques (biased and inconsistent) in the top tier finance literature.


Deliberating Beyond Evidence: Lessons From Integrated Assessment Modelling, Elisa Vecchione Jul 2012

Deliberating Beyond Evidence: Lessons From Integrated Assessment Modelling, Elisa Vecchione

Elisa Vecchione

The premises of this paper rely on associating policy inertia toward action on climate change with the inadequacy of the classical ‘liability culture’ of evidence-based policy-making to deal with this global environmental challenge. To provide support to this hypothesis, the following discussion analyses the technical properties and the current policy use of Integrated Assessment Modelling (IAM) of economic-climate interactions. The paper contends that IAM is still not clarified enough as far as its potential for information-production in the framework of policy making processes is concerned, and that this fact is symptomatic of the current inability of societies to undertake the …


Dynamics Of Land Use/Land Cover Changes And Its Implication On Food Security In Anyigba, North Central, Nigeria, Tokula E. Arome, Sunday P. Ejaro (Phd) May 2012

Dynamics Of Land Use/Land Cover Changes And Its Implication On Food Security In Anyigba, North Central, Nigeria, Tokula E. Arome, Sunday P. Ejaro (Phd)

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

This study assessed land use/land cover changes and its effect on Agricultural land in Anyigba. The objectives were to identify and delineate different land use / land cover categories, assess the rate of change that occurred and examine the impact of land use/land cover change on food security using satellite remote sensing data collected at three different years (1987 Land sat TM, 2001 Land Sat TM and 2011 Land Sat ETM). The study utilized GIS software such as Idrisi Andes academic and ArcGIS 9.3. The study area covers approximately 31.8km2, and four major land use/cover classes were utilized (built up, …


Disparities In Municipal Waste Management Across Eu-27. A Geographical Approach, Florin C. Mihai, Liviu Apostol May 2012

Disparities In Municipal Waste Management Across Eu-27. A Geographical Approach, Florin C. Mihai, Liviu Apostol

Florin C MIHAI

Inadequate waste management leads to many environmental issues and the adoption of an efficient and sustainable waste management has become a priority objective of the EU. However, besides the demographic factors, the various socio-economic and geographical conditions of this complex space lead to major disparities in municipal waste management between North and South, East and West. This paper aims to do a spatial-temporal analysis of the Eurostat indicators using ascending hierarchical cluster analysis that divides the member states into five typological classes. The resulted maps highlight territorial disparities among Member States on municipal waste management and also reveal the evolution …


Mis Mock Questions (Why Mis In Corporate Turbulant Times), Deogratias Harorimana Sr May 2012

Mis Mock Questions (Why Mis In Corporate Turbulant Times), Deogratias Harorimana Sr

Dr Deogratias Harorimana

With corporate strategy becoming more and more dependent on speed,focus, innovation and strategy, what can MIS do? and what should be MIS role ? what is the relationship between Corporate Strategy KPI and MIS? These questions are answered in an MBA Management Information Systems at USP. This programme is delivered across the entire Pacific region through the Graduate School of Business. It is my privilege to post here few questions that students who attended one of the course in Nadi, at Tanoa International Hotel had to answer in one of the Quiz test.


Economic Benefits Analysis Of Mining Industries In Png And Solomon Islands, Deogratias Harorimana Sr Apr 2012

Economic Benefits Analysis Of Mining Industries In Png And Solomon Islands, Deogratias Harorimana Sr

Dr Deogratias Harorimana

This paper discusses mining and mineral operations in the two countries Papua New Guinea and Solomon Islands with regards to its contribution to the overall Gross domestic Product and the economic development of each country.

Our finding shows that mining is an excellent contributor to economic growth and development as in the case of Papua New Guinea.Tax revenue from PNG Mining industries contributions to the PNG fiscal basket remains strong and growing steadily. The mining and minerals tax revenue remains an important contributor to the government fiscal budget over the last 10 years. This has been a strong contributor to …


Understanding Economics Of The Pacific Island Nations: Issues And Cases, Deogratias Harorimana Sr Apr 2012

Understanding Economics Of The Pacific Island Nations: Issues And Cases, Deogratias Harorimana Sr

Dr Deogratias Harorimana

No abstract provided.


A Comparative Study Of Trends In Globalization Using Different Synthetic Indicators, Sudhanshu K. Mishra Apr 2012

A Comparative Study Of Trends In Globalization Using Different Synthetic Indicators, Sudhanshu K. Mishra

Sudhanshu K Mishra

Using the KOF data at the annual level, we construct ten different composite indices for comparing the extent of globalization of 131 countries for eleven years, 1999-2009. We compare the different indices of globalization among themselves and also with the Dreher-KOF index of globalization and find that among the different indices the Dreher-Chebyshev index is the most representative one. Among the countries, we concentrate on the trends in globalization of India and her neighboring countries, Bangladesh, China, and Pakistan.


Job Creation In The Tuna Industry Of The Solomon Islands- A Tentative Strategic Analysis, Deogratias Harorimana Sr Apr 2012

Job Creation In The Tuna Industry Of The Solomon Islands- A Tentative Strategic Analysis, Deogratias Harorimana Sr

Dr Deogratias Harorimana

The principal objective of this paper is to review the current Tuna Fisheries Policies in the Solomon Islands with a view to proposing strategies that will maximize Job creation while at the same time address the issues that currently exist in this sector. Although the Tuna Industry’s contribution to GDP is quite significant, the Solomon Island Government (SIG) gets little or close to nothing out of it in the form of revenue and Job creation with the majority of vessels being foreign owned and fishing license fees amongst the lowest in the Pacific. SOLTAI which is partly owned by the …


A Maximum Entropy Perspective Of Pena’S Synthetic Indicators, Sudhanshu K. Mishra Apr 2012

A Maximum Entropy Perspective Of Pena’S Synthetic Indicators, Sudhanshu K. Mishra

Sudhanshu K Mishra

This paper uses mixed combinatorial-cum-real particle swarm method to obtain a heuristically optimal order in which the constituent variables can be arranged so as to yield some generalized maximum entropy synthetic indicators that represent the constituent variables in the best information-theoretic sense. It may help resolve the arbitrariness and indeterminacy of Pena’s method of construction of a synthetic indicator which at present is very sensitive to the order in which the constituent variables (whose linear aggregation yields the synthetic indicator) are arranged.


Review Of Solomon Islands’ Policies And Programs To Promote Private Sector Development And Small Business, Deogratias Harorimana Sr Apr 2012

Review Of Solomon Islands’ Policies And Programs To Promote Private Sector Development And Small Business, Deogratias Harorimana Sr

Dr Deogratias Harorimana

Solomon Islands is a nation with vast resources with huge potential to excel economically if proper business atmosphere is provided for both private sector development and small and medium enterprises entrepreneurship. Conducive policies that, not only, a mere statement but is broken down to workable strategies with quantitative expected outcome with a strong mentoring mechanism is very important. Previous governments have continuously ignored the importance of having small business policies until lately when NCRA government came up with a set of policies that strategically addresses the significance of small and medium businesses. However, notwithstanding foreign investment is very important in …


A Note On Construction Of Heuristically Optimal Pena’S Synthetic Indicators By The Particle Swarm Method Of Global Optimization, Sudhanshu K. Mishra Mar 2012

A Note On Construction Of Heuristically Optimal Pena’S Synthetic Indicators By The Particle Swarm Method Of Global Optimization, Sudhanshu K. Mishra

Sudhanshu K Mishra

Pena’s method of construction of a synthetic indicator is very sensitive to the order in which the constituent variables (whose linear aggregation yields the synthetic indicator) are arranged. Due to this, Pena’s method can at present give only an arbitrary synthetic indicator whose representativeness is indeterminate and uncertain, especially when the number of constituent variables is not very small. This paper uses discrete global optimization method based on the Particle Swarms to obtain a heuristically optimal order in which the constituent variables can be arranged so as to yield Pena’s synthetic indicator that maximizes the minimal absolute (or squared) correlation …


A Note On The Indeterminacy And Arbitrariness Of Pena’S Method Of Construction Of Synthetic Indicators, Sudhanshu K. Mishra Mar 2012

A Note On The Indeterminacy And Arbitrariness Of Pena’S Method Of Construction Of Synthetic Indicators, Sudhanshu K. Mishra

Sudhanshu K Mishra

In this paper we demonstrate that Pena’s method of construction of a synthetic indicator is very sensitive to the order in which the constituent variables (whose linear aggregation yields the synthetic indicator) are arranged. Since m number of constituent variables may be arranged in m-factorial ways, even a moderately large m can give rise to a very large number of synthetic indicators from which one cannot choose the one which best represents the constituent variables. Given that an analyst has too little information as to the order in which a sizeable number of constituent variables must be arranged so as …


A Socio-Political Analysis Of Policies And Incentives Applicable To Community Wind In Oregon, Yao Yin Mar 2012

A Socio-Political Analysis Of Policies And Incentives Applicable To Community Wind In Oregon, Yao Yin

Yao Yin

As a new type of ownership structure, community owned wind projects are becoming more and more important in today's wind energy generation in the U.S. Unlike traditional large wind farms, community wind features local ownership and small-scale generation capacity. The goal of this paper is to identify policies, incentives, and regulations in place that are applicable to community wind projects in Oregon by interviewing project representatives and governmental officials and to depict the Oregon context from strategic, tactical, and operational perspectives for researchers, farmers, private businesses, government entities, and others who are interested in learning about the community wind in …