STUDYING THE LOCAL DIVERSITY OF RURAL LIVELIHOODS SYSTEMS: AN APPLICATION OF TYPOLOGICAL TECHNIQUES FOR INTEGRATED RURAL DEVELOPMENT SUPPORT IN THE EASTERN CAPE (SOUTH AFRICA)

This paper presents briefly the principles and procedure of typology schemes, which aim at describing and representing the local diversity of rural households, through the analysis of their modes of operation, strategies and prospects, activities and livelihoods' systems. This approach departs from both strict economic analysis and social participatory approaches, which often overlook the diversity that exists among rural households at local level. It basically combines the respective principles and advantages of both approaches. Through a case study, which was carried out in a rural community of the Eastern Cape Province of South Africa, the paper highlights this local diversity, its representation through a typology scheme, and the issues related to livelihood systems: complementarity between on-farm and off-farm activities and sources of income, the key role of women, significance of subsistence farming activities, existence of productive and potentially profitable activities (wool). Some key questions for the close future are also raised: ageing process at household level (pensions are currently instrumental in livelihood build-up), transmission process to youngsters in a context of PTO land access system, sustainability of farming systems in a fragile and constraining natural environment, weaknesses in the agribusiness environment, basic needs in development support as expressed by people, the worrying situation of certain very poor households, problems and constraints as expressed by farmers. The paper finally discusses the significance of such tools for integrated rural development planning and management purposes. They may be responses to the increasing need for proper diagnosis, in a context of persistent poverty in South-Africa's rural areas and of public willingness to tackle it in an integrated manner.Community/Rural/Urban Development, Labor and Human Capital,

Construction of an Apartment Building and Parking Garage

Construction projects are known far and wide to all people. Buildings we need for daily survival would not exist if it were not for the construction industry. Our homes, healthcare facilities, groceries, and other necessary amenities would be gone if it were not for the structures they are housed in. This project aims to simulate the lifespan of a construction job from the design phase to the preconstruction phase and stops at the final presentation before an agreement to start construction. To create the simulation for the students, a fake RFP, or request for proposal, was created and given to the assigned groups for the project. In this RFP were the guidelines and requirements of the project. It listed what kind of project this was, what was necessary in the project, and the timeline given to complete it. The project was to be a living area for students on Murray State’s campus. Guidelines were given for the number of apartments and parking spaces needed for the building. The building also needed to be ADA compliant and LEED Silver certified or better. Progress meetings were scheduled to create a real environment, as progress meetings are typically held in a real construction project to keep the owner updated and keep communication between all members of the project team. The results of this project gave students a real-world type of work experience before getting into the field for themselves. Students were put in the mind of a worker in the industry, given their time frame and assigned partners, and expected to perform and present a full project at the end of the semester

Simplified Vacuum Energy Expressions for Radial Backgrounds and Domain Walls

We extend our previous results of simplified expressions for functional determinants for radial Schr\"odinger operators to the computation of vacuum energy, or mass corrections, for static but spatially radial backgrounds, and for domain wall configurations. Our method is based on the zeta function approach to the Gel'fand-Yaglom theorem, suitably extended to higher dimensional systems on separable manifolds. We find new expressions that are easy to implement numerically, for both zero and nonzero temperature.Comment: 30 page

Development and Monitoring of Revegetation Methods: Connecting Students with Restoration Activities at Awcomin Marsh

Five classes in a local elementary school participated in an effort to grow and plant high marsh and upper border vegetation at a salt marsh restoration site in spring 2005. Seeds of six marsh upper edge species were successfully germinated and grown into seedlings by third graders. The seedlings were planted by the students in late spring 2005, but only switchgrass and quackgrass plants appeared to have established and survived after one year. Mature shoots of three high marsh species planted by the third graders (salt hay, salt grass and black grass) established successfully and continue to proliferate. In addition, we assessed an experiment of cordgrass plantings performed by community volunteers in 2002. The experiment was designed to test the effectiveness of three planting techniques at a salt marsh restored by the excavation of old dredge spoil that had been colonized by common reed. After four growing seasons, Plug, Bare Root Shoot, and Seed Head planting techniques exhibited greater cover of cordgrass and total cover of vascular plants when compared with unplanted areas. Cover of perennial plants (e.g., cordgrass), which contributes directly to belowground soil development in salt marshes, dominated the planted plots. Cover of annual species dominated the unplanted plots. Planting cordgrass in areas where dredge spoils and common reed had been excavated from a historic marsh accelerated the development of native vegetation compared with unplanted areas. Performance and evaluation of the two sets of plantings has provided information about appropriate planting techniques for our region and has involved and educated the local community about the values of salt marsh to promote stewardship. Recommendations included the use of bare root shoot and seed head planting techniques where cordgrass is desired. Outside plots or a greenhouse may be needed for successful propagation of upper edge marsh species from seed, and a planting program that includes mature plants as well as seedlings is recommended to ensure success

On the Disambiguation of Weighted Automata

We present a disambiguation algorithm for weighted automata. The algorithm admits two main stages: a pre-disambiguation stage followed by a transition removal stage. We give a detailed description of the algorithm and the proof of its correctness. The algorithm is not applicable to all weighted automata but we prove sufficient conditions for its applicability in the case of the tropical semiring by introducing the *weak twins property*. In particular, the algorithm can be used with all acyclic weighted automata, relevant to applications. While disambiguation can sometimes be achieved using determinization, our disambiguation algorithm in some cases can return a result that is exponentially smaller than any equivalent deterministic automaton. We also present some empirical evidence of the space benefits of disambiguation over determinization in speech recognition and machine translation applications

A Conceptual Analysis of Relational Contracts in Agribusiness Supply Chains: The Case of the Sugar Industry in Swaziland

This study examines the nature of the relationship between cane growers and millers and how it affects cane growersÂ’ perceptions of the value added in the sugar supply chain. Drawing from relational exchange theory, the study utilised the perceptions of 124 smallholder cane growers in the Swaziland sugar industry. Factors measured in terms of a likert type scale were used to measure each relational construct within the miller-grower contract relationship. The unpacks the trust relationship between large agribusiness companies and smallholder out growers, and shows that relationships characterised by social factors like trust, commitment, and cooperation enhance mutual benefit and quality relationships between parties. This study found that farmers perceive an element of opportunistic behaviour and a lack of cooperation by millers and therefore have limited trust in the millers. Consequently it was also found that satisfaction by cane growers on their relationship with millers has a positive relationship with their level of trust, level of commitment, relative dependence, perception of opportunistic behaviour by millers and perceived cooperation between themselves and the millers. The results point to a number of aspects both growers and millers need to attend to which could contribute to improved relationship and in turn efficiency and returns in the sugar industry in Swaziland.Agribusiness,

Functional determinants for radial operators

We derive simple new expressions, in various dimensions, for the functional determinant of a radially separable partial differential operator, thereby generalizing the one-dimensional result of Gel'fand and Yaglom to higher dimensions. We use the zeta function formalism, and the results agree with what one would obtain using the angular momentum cutoff method based on radial WKB. The final expression is numerically equal to an alternative expression derived in a Feynman diagrammatic approach, but is considerably simpler.Comment: 21 pages, uses axodraw.st

Bourdieu, networks, and movements: Using the concepts of habitus, field and capital to understand a network analysis of gender differences in undergraduate physics

Current trends suggest that significant gender disparities exist within Science, Technology, Engineering, and Mathematics (STEM) education at university, with female students being underrepresented in physics, but more equally represented in life sciences (e.g., biology, medicine). To understand these trends, it is important to consider the context in which students make decisions about which university courses to enrol in. The current study seeks to investigate gender differences in STEM through a unique approach that combines network analysis of student enrolment data with an interpretive lens based on the sociological theory of Pierre Bourdieu. We generate a network of courses taken by around 9000 undergraduate physics students (from 2009 to 2014) to quantify Bourdieu's concept of field. We explore the properties of this network to investigate gender differences in transverse movements (between different academic fields) and vertical movements (changes in students' achievement rankings within a field). Our findings indicate that female students are more likely to make transverse movements into life science fields. We also find that university physics does a poor job in attracting high achieving students, and especially high achieving female students. Of the students who do choose to study physics, low achieving female students are less likely to continue than their male counterparts. The results and implications are discussed in the context of Bourdieu's theory, and previous research. We argue that in order to remove constraints on female student's study choices, the field of physics needs to provide a culture in which all students feel like they belong.Comment: 23 pages, 6 figures, 1 tabl