Browsing by Author "Hassouna, Khaled M."
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- The Change: A Narrative-Informed Case Study Exploring the Tension between Structures and Agency in the Educational Trajectories of Engineering Students from Underserved BackgroundsTaylor, Ashley Rae (Virginia Tech, 2020-02-05)In the United States context, there is a particularly prevalent dialogue about the transformative power of an engineering degree for underserved students. Long positioned as a mechanism for moving up the social ladder, engineering education is often discussed as a mechanism for upward mobility, promising underserved students the opportunity to climb. However, a critical examination of who enrolls and persists in engineering degree programs suggests not everyone can equitably leverage the transformative power of an engineering degree, with persistent inequities for underserved students. Though literature highlights systemic barriers faced by underserved engineering students, much less is known about how underserved students navigate barriers to pursue an engineering bachelor's degree. Accordingly, the purpose of my study was to explore how students from underserved backgrounds navigate their educational trajectories, focusing on the interplay between structures and agency. Using a Bourdieusian lens, my study was guided by the overarching research question: In their narratives, how do students from underserved backgrounds describe navigating their educational trajectories towards a bachelor's engineering degree? I used a single case study methodology with embedded units of analysis to explore this research question. My primary data sources included narrative interviews with 32 underserved engineering students and geospatial community-level data extrapolated from students' home zip codes. My results indicate that underserved engineering students describe a variety of strategies to enact agency by planning, optimizing, and, at times, redirecting their educational trajectories. This study also highlights the influence of family, community, economic, and political environments on the educational journeys of underserved engineering students, as students described navigating and adapting to these various social environments. Students also describe their environments as dynamic, with trajectories changing based on critical incidents such as a parent illness or loss of work. Lastly, students' narratives highlight a diverse range of reasons for pursuing engineering, which often extended beyond private goods approaches to engineering education. My results present implications for engineering education, the most notable of which is that underserved students are not a monolithic group and represent a diverse range of lived experiences. My results also highlight agency as a collective endeavor, challenging popular notions that agency is operationalized at the level of a single individual. Lastly, students' lived experiences with material hardship highlight the dynamic and multidimensional nature of economic disadvantage. Such insights compel engineering educators to reexamine how we conceptualize and measure economic disadvantage in higher education. Ultimately, this research highlights opportunities to increase access and equity in engineering education for underserved students.
- Developing a Natural Resource Database for Geographic Information SystemHassouna, Khaled M. (Virginia Tech, 1997-03-13)Geographic information systems ( GIS ) are an effective tool for land management. By studying the land formations and land cover of a site, much information about the tree and animal species inhabiting a site can be estimated. The managers of public or private lands may find the concept of a multi-layer analysis of their land useful in discriminating locations based on their many characteristics. I created a database of a small area with no previously specified objective. I produced a group of map layers emphasizing the methodology and the ability of making any number of overlays or combinations of layers. I estimated the time and cost involved in producing these layers. I produced layers of: elevation, slope, aspect, watershed-depression, watershed-flow direction, watershed-streams, and roads. I created a group of categorized data layers: elevation, slope, aspect, erosive slope, watershed-flow accumulation, buffered roads, and buffered streams. I made some combinations of different layers explaining the potential uses of such combination. I used the work of my graduate colleagues to illustrate the importance of such work when combined in natural resources management. Combinations were made of: forest cover, average temperature, solar radiation, and slope position.
- Ecological and Aesthetic Factors' Preferences of Urban Riparian Corridor in Arid Regions: A Visual Choice ExperimentBogis, Abdulmueen Mohammed (Virginia Tech, 2021-10-26)The aim of this study is to examine the public preferences for urban riparian corridors in arid regions, by testing to what extent people are willing to trade-off unmaintained ecological landscape for aesthetics offered by specific micro and macro environmental factors. Landscape design reflects ecological and aesthetic values, and trade-offs are often made between the two in practice. In arid regions, water scarcity means riparian corridors are the richest landscape typology and the only blue-green links for hundreds of miles. Pressure from urbanization and lack of eco-literacy contribute to negative feedback loops which present dire challenges for migrating avifauna and regional wildlife. Regarding natural resources and biodiversity, where multiple deliverable ecosystem services rely on the quality and health of that ecosystem, riparian systems with high biomass are more desirable. Although this can be achieved with low or no maintenance riparian buffers, these unmaintained ecological landscapes play an intrinsic role in sustaining the global ecosystem services and are important for the survival of the inhabitants (avifauna). Ecological landscapes are often subjected to trade-offs with aesthetic landscapes that include micro and macro environmental factors such as manicured landscapes. It is accepted that there is a preference for aesthetics in landscape design; however, it is unclear how laypeople prioritize aesthetics over different ecological factors in landscape scenes. This study uses a Discrete Choice Experiment (DCE) to elicit the preferences of current or pretendant residents of Jeddah City, Saudi Arabia for multiple landscape scenes. The method combines ecological landscape characteristics adopted from the QBR index that are found in the study area in Jeddah and aesthetic characteristics, such as micro and macro environmental factors that are commonly suggested in landscape design projects adapted from relevant visual preference studies (Alsaiari, 2018; Kenwick et al., 2009; Kuper ,2017; Zhao et al., 2017). DCE is a widely used method to reveal preferences by analyzing the trade-offs people make between alternatives. Participants in this study were exposed to a set of designs, which included various configurations of aesthetic and ecological elements. Participants' choices revealed the influence of their ecological and aesthetic values. Results show that minimal design interventions would prevent trading off the ecological unmaintained landscape and that there are four subgroups with distinct homogeneous preferences for the attributes affecting the appeal for the urban riparian corridor in Jeddah City. Finally, results show that even though there are significant differences between subgroups based on preferences, the demographic information is proportionally distributed in a way the means differences diminish between the subgroups. Findings in this study will equip decision-makers with operational definitions relating to riparian landscape design and a method that they can use to minimize losses in ecological value over aesthetic value. This study will help researchers and landscape architects advance visual preference research further into the domain of empirical studies.
- A Framework for Development in Rural Arid and Semi-Arid Environments in Africa: The Somalia CaseMitchell, John Talmadge (Virginia Tech, 2020-05-11)This study proposes a framework and a process promoting creation of sustainable jobs and businesses in rural, arid and semi-arid agricultural conflict zones of Sub Saharan Africa, focusing on Somalia's societal stabilization and conflict mitigation. This task requires developing risk-reducing measures for infrastructure and service delivery in rural, post-conflict zones. Literature reviews identified two economic growth theories rooted in sustainability concepts for localized, pro-poor development. Ecological Economics Theory (EET) and Endogenous Growth Theory (EGT) are the philosophical bases establishing investment priorities. Additional research regarding Somali culture, key conflict factors, and potential business opportunities, provides an understanding of salient facts in Somalia's on-going, 27-years of war and potential culturally acceptable development pathways. Informal sources, Somali and non-Somali, were consulted to further identify and verify potential avenues for economic growth, sustainability, educational opportunities, allowing Somalia to emerge from the strife it has endured. Visits to Somalia and Somaliland confirmed that livestock, its products and related requirements, are key components for economic growth and job creation. Investigation, via pilot testing and case studies, was undertaken of technologies with potential to improve productive capacity and disrupt existing value chains. Initial framework elements were evaluated for job and business creation, through unstructured, semi-structured interviews, and questionnaire of Somali officials, and Somali and non-Somali conflict zone development practitioners. The pilot test used a small sample size and is a limitation of this work. Findings from the literature review, informal discussions, and the pilot test are synthesized into the framework presented in Chapter 5. The framework proposes development of an innovative, disruptive, and scalable business model that facilitates the simultaneous implementation of renewable energy production. It targets education for the livestock and agroforestry industry of Somalia, improving job and business opportunities. The model proposes modification of used shipping containers for the creation of modular elements, to satisfying infrastructural building components to initiate skills practice, job, and business growth.
- The Role of Local Traditions in Participatory Planning for Successful Development Projects in Rural EgyptHassouna, Khaled M. (Virginia Tech, 2009-03-30)This research examines participatory planning processes in rural Egypt, which was deemed successful by the local people. The purpose is to identify elements that caused these projects to be perceived successful. Using the normative participatory planning theory that is usually used in the West as a theoretical context, the research examined three successful development efforts in rural Egypt. Projects' publications and planning documents were reviewed to build a context for interviews. The projects' planners were interviewed for descriptions of their initial designs for the participatory planning processes employed. An opportunistic sampling technique was used to identify local participants who were interviewed for descriptions of their experiences in the planning processes. The analysis suggests that the participatory planning processes implemented had the same stages as the normative planning process in the West. The thick description of the processes by the interviewees revealed subtle elements within the processes that governed the participants' evaluation. Bedouin interviewees viewed consensus as the only valid mode of final agreement in indigenous peoples' decision-making processes. Bedouin participants were found to consider perceptions of time, and choice of space and language used in planning sessions to be extremely important, significantly impacting their evaluation of the process in which they took part. Long sessions that took place locally and were formatted in a traditional Bedouin manner were perceived more successful. Bedouin dialect and Bedouin hospitality employed during sessions also increased the perceived success of planning sessions. Such subtle Bedouin interpretation of elements of social environment guided their perceptions of the success or failure of the planning processes. Government planning agencies and planners should integrate the indigenous peoples' traditional decision-making processes in their designs for participatory planning processes, when planning development projects. Also indigenous people should take responsibility to present their cultural methods to individuals and agencies involved in planning such development projects in their locale. This can lead to a change in the planning culture to engage in more organic, grassroots' processes. Community-based, organic-design processes will significantly increase the likelihood of achieving the full potential of a plan in the short and long term.
- STEM Educators' Preparedness for English Language Learners in the United StatesBesterman, Keith Richard (Virginia Tech, 2017-09-06)In the United States STEM (Science, Technology, Engineering, and Mathematics) education is increasingly being promoted as a key component of preparing students for the reality of an increasingly technology infused society and workforce. As the population of students classified as English Language Learners (ELLs) continues to grow across the United States the need for STEM educators to be prepared to effectively educate these students is of increasing concern. The task of preparing this group of learners to succeed in a STEM-infused society is a joint effort between specialized linguistic courses in the K-12 education system as well as the STEM educators outside of these specialized courses. As such, focus on creating policy and preparation models for STEM teachers to acquire the necessary skills to effectively serve the ELL population needs to be rooted in targeted analysis of the connections between STEM educators and ELLs. This dissertation is comprised of two exploratory research studies that examine STEM teachers' preparedness to educate ELLs using secondary analysis of the 2007-2008 and 2011-2012 School and Staffing Survey Teacher Questionnaire (SASS TQ) datasets. The first study focuses on national and regional analysis of how STEM teachers' degrees, state-level certification areas, and professional development participation reflect potential indicators of preparedness to educate ELLs. Concurrently, this study examines ELL participation in STEM courses nationally and regionally through the percentage of STEM teachers who had ELLs in their overall service loads of students as well as the average number of ELLs in those service loads. Quantitative analysis showed drastic differences between regions as well as differences in ELL participation and teacher credentialing between the STEM disciplines. The second study utilizes both the 2007-2008 and 2011-2012 SASS TQ datasets to make comparisons in STEM educators credentialing and ELL participation in STEM courses over the four year time span between the datasets. National analysis of ELL participation in STEM courses showed that in all of the STEM disciplines the percentage of teachers who had ELLs in their total service loads of students increased. The growth of ELL participation differed across disciplines and across regions, however, nationally by 2012 over half of all STEM educators reported having ELLs in their service loads of students. Despite the growing participation of ELLs in STEM courses, the rates of STEM teachers' participation in ELL specific professional development activities largely stagnated over the four year span. The findings of these studies provide valuable information to frame discussions of STEM teachers'preparedness to meet the needs of a growing population of ELLs.
- Understanding Outdoor Social Spaces: Use of Collaborative-Sketching to Capture Users' Imagination as a Rich Source of Needs and DesiresAlzahrani, Adel Bakheet (Virginia Tech, 2015-07-07)The way in which environmental designers design neighborhood spaces has a role to play in the quality of outdoor spaces that shapes and directs daily outdoor social activities as well as creates a bridge between individuals and the local community. The high quality design of outdoor spaces is fundamental in fostering social cohesion among users/residents in order to produce a healthy social atmosphere, whereas a decline in the quality of outdoor spaces can contribute to antisocial behavior. Today, In Jeddah City, Saudi Arabia, in many cases of new neighborhoods, the outdoor space has become abandoned, and empty, or is avoided. Within this setting, these spaces do not provide opportunities for families with their children to gather and play, to sit and socialize with neighbors, to gather in outdoor activities, to walk to the mosque or school, or to do their daily grocery shopping without being threatened by dangerous car traffic. Moreover, even if users and residents experience problems in their neighborhood, and have their own needs and visions to solve the problem, they do not have the experience to mentally visualize and resolve these problems. Through this qualitative research, the researcher proposes a new approach in incorporating users' imagination in the ideation process of design in order to examine to extend the current normative theory through the development of a more "collaborative ideation process."In this new collaborative process, the representation of ideas becomes more iterative and knowledge exchange between researcher and users becomes more seamless. Through incorporating the researcher's sketching skills as a process of "collaborative-sketching," possible ideas and solutions are explored that are responsive to the needs and desires of users. Using a number of photographs of an outdoor residential space as an example, the objective of this study is to examine the use of collaborative sketching as a way of taping into users' imagination as a rich source of their needs and desires to empower the design process. The findings showed that applying a collaborative sketching process in the early ideation stage of design can result in a rich exchange between designers and user, enabling the designer to have a better and more realistic understanding of needs and desires from the perspective of the user. Through this collaborative-sketching process, the users were continuously, iteratively, and instantly stimulated to not only to narrate their needs and desires, but to visually provide realistic and specific details about the social activities and physical elements including their affordance, rationale of using, value of use, and how social interactions might occur within the different settings.