Dissertations / Theses on the topic 'Exhibits'
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1
McClafferty, Terence P. "Visitors' use and understanding of interactive exhibits and learning of scientific concepts." Thesis, Curtin University, 2000. http://hdl.handle.net/20.500.11937/1645.
Full textAbstract:
Visitors use and understanding of interactive exhibits and their learning of scientific concepts was investigated by three studies. The first study categorised visitors' use of a sound exhibit and found that 49% successfully used the exhibit. Understanding was described with a knowledge hierarchy and learning was measured using a pre-test and post-test. Findings indicated that many visitors had prior knowledge of the relevant concepts and 50% of visitors learnt a concept from the exhibit. The second study investigated young children's understanding and interaction with the Mitey Quarry, a cooperative exhibit of four elements, conveyor, elevator, auger and sorter, which were used to move balls around the exhibit. Findings indicated that children's activities and their level of understanding varied for each element, though higher levels were achieved with elements that were easily observable. The children's activities began with observation, and then vacillated between manipulation, operation and control of an element. The third study identified the educational objectives of a physical fitness exhibit, Let's Get Physical, and their achievement by high school students. Findings indicated that the instructional sequence integrated cognitive and affective objectives, and although 42% of students stated their intentions to begin new exercise activities in response to the exhibit message "to be active everyday", after two weeks, these intentions had not been enacted. The research has contributed to improved exhibit design by demonstrating the value of knowledge, activity and affective hierarchies in identifying exhibit objectives and providing a means for evaluation. Hierarchies are an effective way to describe and measure the visitors' use and understanding of interactive exhibits and learning from them.
2
Meisner, Robin Stephanie. "Encounters with exhibits : a study of children’s activity at interactive exhibits in three museums." Thesis, King's College London (University of London), 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606395.
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This thesis develops arguments relevant to learning in informal environments about the nature of the activity, interaction and collaboration that emerge in young children (ages 4-12) at specific interactive exhibits in informal learning institutions. Using video recordings of children's activity at ten different interactive exhibits as principal data, this thesis seeks to unpack the notion that children are merely 'just playing' with, at and around the exhibits - or, put differently, it aims to specify the activity behind 'interactivity'. In so doing, it explores the ways in which the diverse forms of social interaction occurring at the exhibit face contribute to and might enable the emergence of specific forms of activity. A case is made for the use of two distinct analytic methods in order to address, firstly, what behaviours are displayed by young children at the exhibits studied, and then, how and why aspects of those behaviours emerge in the particular manner in which they do. Sources from education, cognitive development and developmental psychology are used in the development of a theoretically and empirically driven coding schema that is applied systematically to the video data to begin to address 'what' behaviours are displayed - the first question. Subsequently, building on an interactional perspective that gives primacy to the pervasive nature of the contributions of others - to social interaction - the 'how' and 'why', or second questions are addressed. To this end, an analysis that draws on ethnomethodology and conversation analysis is used to explore the role of observation and imitation in the children's activity at the exhibit face. The final chapter reflects upon the observations and findings of the whole study to consider their implications for potential learning at and the design of interactive exhibits. It explores the extent to which the design of exhibits might enable particular forms of activity and co-participation, and puts forth design sensitivities for exhibit designers to consider. It offers a critique of the two analytic methods and their potential utility for future research. And, finally, it seeks to show that when children's activity at exhibits is analysed in detail, children who are seen to be 'just playing' are indeed engaged in a range of productive actions and interactions.
3
Ralston, Stuart Edward. "Virtual reality science centre exhibits." Thesis, University of Canterbury. Computer Science, 1994. http://hdl.handle.net/10092/9275.
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Virtual Reality (VR) systems have become widely recognised by the public as a result of media attention, but the cost of the underlying hardware has limited research in the field. Recent improvements in computing power, rendering software, and their availability have started to lower the price of personal VR system components, allowing VR to become an increasingly affordable technology. Science centre exhibits have traditionally been a starting point for high impact science products, presenting them directly to the public. VR technology is currently in a state where its introduction into a science centre is feasible. This thesis describes three computer-based science exhibits that have been designed and introduced to the Science Alive! science centre in Christchurch, New Zealand. The first exhibit, called Juggling In a Virtual Environment (JIVE), teaches the user to juggle virtual objects in VR. The exhibit was constructed using an IBM compatible personal computer, a modified Mattei PowerGlove, a data projector, a 2 metre by 1.5 metre fabric screen, and public domain rendering software. The main advantages of the system are that it is economical and it attempts to teach skills that are otherwise difficult to learn. Overall, the PowerGlove proved to be unreliable due to background noise, a restricted working angle of the ultrasonic tracking, and a high breakage rate of the finger sensors. The second exhibit, called Cybertennis, was constructed using the same hardware as JIVE, except for modifying the breakage-prone PowerGlove into a bat. A new virtual world was designed to allow the user to play a game of tennis with an artificial opponent.
The third exhibit, called the Data Digester, is an electronic questionnaire; consisting of a
Macintosh personal computer, a touch screen device, and HyperCard developing software. The Data Digester gathers information for market research, demographic investigations, and exhibit evaluation.
4
Dancu, Toni Nicole. "Designing Exhibits For Gender Equity." PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/339.
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Gender equity has been a national and global aim for over half a century (Ceci & Williams, 2007; National Center for Education Statistics, 2003; National Science Board, 2008). While gains have been made, one area where inequity remains is spatial reasoning ability, where a large gender gap in favor of males has persisted over the years (Else-Quest, Linn, & Shibley Hyde, 2010; National Science Board, 2008; Ruble, Martin, & Berenbaum, 2006). This gender gap in spatial reasoning has had substantial societal impact on the career interests of females in areas of Science, Technology, Engineering, and Math (STEM), contributing to the larger societal need to engage non-dominant groups in these fields to reduce outsourcing (Ceci & Williams, 2007; Jaschik, 2007; Wai, Lubinski, & Benbow, 2009; White, 1992). Both spatial reasoning ability and STEM career interest have been related to science museum visits (Hamilton, Nussbaum, Kupermintz, Kerkhoven, & Snow, 1995; Salmi, 2001, 2002). However, researchers have also found a gender gap in favor of males in regard to science museum attendance and experiences once at the museum (Borun, 1999; Crowley, 2000). There are many suggestions for increasing female engagement at science museums and creating equitable experiences, but few have been systematically studied (Kekelis, Heber, & Countryman, 2005; Koke, 2005; Maher, 2005; Taylor, 2005). This research investigated gender equitable exhibit development by enhancing a geometry exhibit with several female-friendly design features and analyzing video data to determine the effects on girls' engagement and social interactions with their caregivers. The findings suggest that incorporating several female-friendly design features leads to significantly higher engagement for girls (evidenced by greater attraction and time spent). This study also looked for any unanticipated negative effects for boys after incorporating the female-friendly design features. It is encouraging that this study was unable to detect any unintended negative effects for boys; however, such non-significant results are inconclusive and should not dissuade future research and design teams from continuing to check for unanticipated ill effects of female-friendly design features for boys. While the positive effects for girls were significant, it is important to note that they were not significantly more positive for girls than for boys; further research is needed to determine whether the female-friendly design features create a more equitable experience for girls, or a more positive experience for everyone. This study did not identify any significant differences in parent-child verbal social interactions between the two versions of the exhibit; however, the pattern of results suggests that gender discrepant parent explanations, as found by Crowley, 2001 in a children's museum, may be less of a concern for girls in science centers, providing an interesting area for future study. This research presents evidence to support incorporating female-friendly design features in future science exhibit development projects, and indicates areas where future studies are still needed to gain a deeper understanding of their effects.
5
McClafferty, Terence P. "Visitors' use and understanding of interactive exhibits and learning of scientific concepts." Curtin University of Technology, Science and Mathematics Education Centre, 2000. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=9773.
Full textAbstract:
Visitors use and understanding of interactive exhibits and their learning of scientific concepts was investigated by three studies. The first study categorised visitors' use of a sound exhibit and found that 49% successfully used the exhibit. Understanding was described with a knowledge hierarchy and learning was measured using a pre-test and post-test. Findings indicated that many visitors had prior knowledge of the relevant concepts and 50% of visitors learnt a concept from the exhibit. The second study investigated young children's understanding and interaction with the Mitey Quarry, a cooperative exhibit of four elements, conveyor, elevator, auger and sorter, which were used to move balls around the exhibit. Findings indicated that children's activities and their level of understanding varied for each element, though higher levels were achieved with elements that were easily observable. The children's activities began with observation, and then vacillated between manipulation, operation and control of an element. The third study identified the educational objectives of a physical fitness exhibit, Let's Get Physical, and their achievement by high school students. Findings indicated that the instructional sequence integrated cognitive and affective objectives, and although 42% of students stated their intentions to begin new exercise activities in response to the exhibit message "to be active everyday", after two weeks, these intentions had not been enacted. The research has contributed to improved exhibit design by demonstrating the value of knowledge, activity and affective hierarchies in identifying exhibit objectives and providing a means for evaluation. Hierarchies are an effective way to describe and measure the visitors' use and understanding of interactive exhibits and learning from them.
6
Josefson, Sachel. "Tradeshow exhibits as places of learning| A case study of an exhibit house in the Midwest." Thesis, The University of North Dakota, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10247139.
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The purpose of this case study was to understand tradeshow exhibits as places of learning. The existing literature suggests that tradeshows are events of learning, but the purpose of this research study was to fill a pronounced gap in the literature by better understanding tradeshow exhibits as places of learning through the perceptions and experiences of industry professionals at a Midwestern exhibit house. Tradeshows have traditionally been understood to be temporary marketplaces where organizations from a given industry convene to display their products and services to potential buyers. While tradeshow exhibits are still seen in this research study as temporary places for trade, this research study went beyond this traditional view, to understand tradeshow exhibits as a complex phenomenon that could facilitate many experiences and opportunities for learning.
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Mai, Laura. "Application of SCODA to forensic exhibits." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/37152.
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Since law enforcement first used DNA evidence to solve crimes in 1985, DNA
typing and the comparison of STR (Short Tandem Repeat) profiles have become the
accepted gold standard in forensic science for identification. Although common DNA
extraction methods such as phenol-chloroform extraction and silica binding matrices are
often effective, a small percentage of samples fail to yield a profile. Some types of
samples, for example bones or bloodstains on concrete, are particularly challenging due
to environmental degradation of the DNA and high concentrations of PCR inhibitors
relative to the amount of available DNA. This ultimately makes obtaining a DNA profile
very difficult and sometimes impossible for this class of samples.
This thesis introduces SCODA (Synchronous Coefficient of Drag Alteration) as a
novel electrophoretic nucleic acid clean-up method for purifying trace amounts of DNA
from PCR inhibited forensic samples. Unlike other extraction techniques that rely on the
chemical properties of DNA, SCODA takes advantage of the physical properties unique
to long and charged molecules such as nucleic acids to selectively concentrate them in an
agarose gel matrix.
SCODA was compared to other extraction and purification methods to determine
the best method for obtaining DNA profiles from difficult forensic samples. Samples that
were examined included bones, bloodstains on concrete and two actual forensic exhibits.
DNA yield and PCR inhibition were assessed by quantitative PCR and STR analysis was
conducted to ensure that profiles could be obtained. In summary, it has been found that
SCODA is optimal for highly inhibited samples that mask the presence of DNA, as in
some cases of bone, and that specific protocols can be designed to further improve
SCODA to outperform other extraction methods, which are more difficult to customize.
8
Ridgway, Stephanie Clark. "Visitor behavior in zoo exhibits with underwater viewing: An evaluation of six exhibits in the western United States." Thesis, The University of Arizona, 2000. http://hdl.handle.net/10150/278753.
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The design of zoo and aquarium exhibits has a strong influence on visitor behavior in exhibit enclosures. Furthermore, zoo exhibits with underwater viewing draw large crowds. The intent of this study was to formulate significant design criteria, through post-occupancy evaluation, to be used for the design of successful underwater exhibits in zoos. This study was conducted to reveal factors significantly influencing viewing time and visitor behavior in zoo exhibits with underwater viewing. At four zoo facilities, 331 visitor groups were observed and asked to participate in a short survey at six zoo exhibits. Chi-square analysis and analysis of variance (ANOVA) were used to evaluate observation and survey results. The size of the underwater viewing window, animal size, animal aquatic activity, presence of infant animals, visitor group type and crowding levels had a significant impact on visitor behavior. Recommendations for the future design of underwater zoo exhibits are discussed.
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Wade, Amanda E. "Balancing preservation and interaction in the museum setting." Greensboro, N.C. : University of North Carolina at Greensboro, 2007. http://libres.uncg.edu/edocs/etd/1509Wade/umi-uncg-1509.pdf.
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Thesis (M.S.)--University of North Carolina at Greensboro, 2007.Title from PDF t.p. (viewed Feb. 28, 2008). Directed by Patrick Lee Lucas; submitted to the School of Human Environmental Sciences. Includes bibliographical references (p. 149-152).
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Bhusate, Arvind M. "Intelligent Communication Technologies for Interactive Museum Exhibits." Thesis, Imperial College London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519602.
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Stevenson, John Benjamin. "Long term impact of interactive science exhibits." Thesis, University College London (University of London), 1994. http://discovery.ucl.ac.uk/10019138/.
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In this study, the long-term impact on family groups of the interactive science exhibits in Launch Pad (Science Museum, London) has been investigated and described both qualitatively and quantitatively. Having reviewed the literature, and sought the views of professionals working in interactive science centres, a series of research questions was evolved. It is argued that it is reasonable to use visitors' recollections of their visits in order to assess this long-term impact. Altogether, 20 subjects were observed in Launch Pad, 396 were given an interview immediately after their visit, 208 responded to a follow-up questionnaire, and 79 were given an in-depth interview about 6 months later. Various indicators have been defined in order to quantify the differences that exist between interactive exhibits, and the concept of exhibit profiles has been introduced as a way of graphically representing these differences. The exhibits were found to hold the attention of visitors, and there was little evidence of museum fatigue. Subjects reported almost unanimously that they had enjoyed their visit and that Launch Pad had made a large positive impact the effects of which lasted for at least six months. Visitors were able to recall in vivid and clear detail their experiences in Launch Pad six months later. A new method of analysing their diverse and scattered recollections was evolved by the development of a network and coding strategies. Although 59% of the elaborated memory comments were found to be descriptive, there were nearly twice as many thoughts as feelings. Also, the data showed that visitors had reflected on their experiences and related them to existing knowledge or, for example, to programmes they saw on television. Evidence of subsequent cognitive processing suggests that a visitor embarks on a process of learning and understanding following an enjoyable, inspiring and thought-provoking visit.
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O'Donnell, Molly K. "Application of Darwinian evolutionary theory into the exhibit paradigm : implementing a materialist perspective in museum exhibits about Native Americans /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3074434.
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Marsh, Hannah. "Memory in World War I American museum exhibits." Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18813.
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Master of ArtsDepartment of History
Sue Zschoche
As the world enters the centennial of World War I, interest in this war is reviving. Books, television shows, and movies are bringing the war into popular culture. Now that all the participants of the war have passed away a change is occurring in in American memory. The transition from living to non-living memory is clearly visible in museums, one of the main ways history is communicated to the public. Four museums are studied in this paper. Two exhibits built in the 1990s are in the 1st Infantry Division Museum at Fort Riley, Kansas, and the Chemical Corps Museum in Fort Leonard Wood, Missouri. The other two exhibits are newer and are the National World War I Museum in Kansas City, Missouri and the Cantigny 1st Infantry Division Museum in Wheaton, Illinois. Findings reveal that exhibits become more inclusive over time to civilian bodies, wounded bodies, and the specific image of “Americans killing Germans bodies.” However, even though there is change some things are turning into myths. The icon of the American soldier as a healthy and strong man willing to sacrifice his life for the country is still a major theme throughout all the exhibits. Finally, there are several myths that America has adopted from its allies. The icons of the bandages over the eyes from the chemical attacks and the horrors of the trenches are borrowed, to a certain extent, from America’s allies. The Americans were only in the war for a limited time and borrowed cultural memories to supplement their own. The examination of the four museums is important because this transition will happen again and soon. Museums must be conscious of the changes occurring during this transition in order to confront the challenges.
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Nolan, Ashley-N'Dene. "The detection of spermatozoa on washed forensic exhibits." Thesis, Nolan, Ashley-N'Dene (2016) The detection of spermatozoa on washed forensic exhibits. Masters by Coursework thesis, Murdoch University, 2016. https://researchrepository.murdoch.edu.au/id/eprint/35017/.
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Occasionally, items of interest have been washed following an alleged sexual assault and analysts may be requested to comment on the effects of laundering on seminal fluid and the persistence of spermatozoa. It is scientifically accepted that when items have been washed resulting in the dilution of semen, Acid Phosphatase activity may be reduced to the point in which it cannot be detected by the Seminal Acid Phosphatase test or by alterative light sources such as the Polilight®. Results documented by Spector (1971), Kafarowski (1996), Farmen (2008) and Crowe (2000) all recorded negative results for Acid Phosphatase following the first wash cycle. However, these results are dependent on different variables such as washing procedures, fabric type and fabric absorbency. Other studies, however, have indicated that spermatozoa from seminal stains on cotton fabric persist even after the fabric has been washed; Spector (1971), Kafarowski (1996), Farmen (2008) and Crowe (2000) all documented a positive result for spermatozoa following the first wash cycle. All of these studies have failed to continue on with the washing process to examine the effects of washing and wash duration on the ability to detect seminal fluid and spermatozoa on different fabric types. The study proposal is to examine the effects of washing and wash duration on the ability to detect seminal fluid and spermatozoa on six different fabric types (cotton, nylon, satin, lace, polar fleece and towel) using an alternative light source (the Polilight-Flare®), the acid phosphatase test and microscopically.
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Schneider, Amber N. Hafertepe Kenneth. "More than meets the eye the use of exhibitions as agents of propaganda during the inter-war period /." Waco, Tex. : Baylor University, 2009. http://hdl.handle.net/2104/5309.
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Kipp, Lorraine Susan. "The use of video technology to enhance zoo exhibits." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/28769.
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Abdalla, Ali Alsalih. "Angled roller mecanum wheel design that exhibits speed reduction." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120266.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.Cataloged from PDF version of thesis.
Includes bibliographical references (page 35).
This thesis presents the testing of speed reduction exhibited by custom angle mecanum wheels. A simple trigonometric model is put forth for the speed reduction, along with the kinematic analysis and simulation of a 3-wheeled-vehicle. Then a 150 mecanum wheel is designed and built, along with a testing fixture allowing it to freely move in the direction the roller pushes towards. This fixture also allowed the collection of the encoder data from the motor and the linear distance the wheel travels. Based on that, the detected speed reduction ratio was 4.9:1, as opposed to the modeled ratio of 3.9:1. This discrepancy is likely cause by the absence of slippage in our model, the jiggle in the wheel's motion, the compliancy of the surface it rotates on, as well as the uncertainty from the linear distance measurement.
by Ali Alsalih Abdalla.
S.B.
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Hosoya, Kenji. "Dihydroartemisinin Exhibits Biologic Activity Against Canine Osteosarcoma Cell Lines." The Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1396282245.
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Eliason, Clint B. "Evaluating the Effectiveness of Supplemental Labels in Museum Exhibits." DigitalCommons@USU, 2007. https://digitalcommons.usu.edu/etd/6124.
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The present study used an experimental design to investigate the efficacy of using short (12 words or less), prominently placed supplemental labels to increase the effectiveness of select extant labels in museum exhibits. The experimenter-developed supplemental labels were designed to leverage exogenous/bottom-up and endogenous/top-down sources of influence on selective attention. Measures of patron behavior, knowledge retention, and attitude found no significant differences between group means under control and treatment conditions. These outcomes were surprising and inconsistent with findings from similar research conducted by Hirschi and Screven. The supplemental labels in the present study might have failed to capture attention because they were not sufficiently visually stimulating, they did not sufficiently tap internal motivations, or perhaps patrons experienced innattentional blindness in regards to them.
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Redvale, Jolene Kay. "Interactive exhibits in museums: Definitions, methods and visitor experiences." CSUSB ScholarWorks, 1997. https://scholarworks.lib.csusb.edu/etd-project/1371.
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Naujokaitis, Alina. ""Inside outer space exhibitions" : a museum intern's view of multi-sited exhibit performativity in Smithsonian Institution space culture /." Connect to online version, 2009. http://ada.mtholyoke.edu/setr/websrc/pdfs/www/2009/.pdf.
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Archibald, Joanna. "Museums and music : an argument in favour of a broader evaluation of the object-based nature of music collections in the United Kingdom." Thesis, University of St Andrews, 1996. http://hdl.handle.net/10023/15131.
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This work seeks to show that the experience gained through music in its practical and aural sense is not represented adequately in music museums because of the necessarily object-based nature of most museum displays. Restricting the analysis to museums - or their equivalent - in the United Kingdom, a representative cross-section of different museums containing music collections is studied. This material is discussed in terms of type, display, interpretation and visitors. Music's problematic standing in museums is subsequently ascribed to its essentially non-visual and transitory nature. A further series of case study museums is then examined - dealing with Film, Theatre, Sport and 'Conceptual Experiences' as subjects - each of which share elements of music's difficulty in presentation. From this, it is shown that many of these difficulties may be overcome; and some of the solutions may be adapted for musical material in both a practical and ideological sense.
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Zheng, Su. "Promoting children's creativity : a design method for interactive museum exhibits." Thesis, Coventry University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492365.
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This thesis concerns the development ofa design method for interactive museum exhibit with the aim ofpromoting children's creativity. Key to the originality of this research is the development of the Creativity Surprise Model (CSM): a conceptual cognitive framework for the design of interactive museum exhibits. The model is unique in the way it combines areas oftheoretical discourse from a range of perspectives: constructivist learning theory, the philosophy of interactivity and developmental psychology and associated cognitive theories of creativity and motivational drives, into a unified multidisciplinary design approach. This synthesis as a design method to support interactive exhibit design has not been previously explored or attempted. The usability and effectiveness ofthe CSM as a design method to support designers ofinteractive designs that stimulate children's creativity is evaluated by constructing and developing a novel interactive prototype. It . demonstrates how the CSM can be applied as a method in a real life design scenario. The model is further subjected to a practical validation through a process of iterative . design stages and tested in a series ofexperimental trials. Interactive exhibits in museums are providing exciting and dynamic learning experiences with significant potential to stimulate children's creativity. However, many interactive exhibit designs with incorporated new technologies can be distractive or misleading rather than supportive to creative learning. Moreover, sophisticated intuitive interfaces designed to deliver easily accessible information are not teaching children the fundamental skills necessarily to Joster genuine creative outcomes. Certainly, incorporating a diverse range ofcommunication tools is the future of museum interactive exhibit design, including the use ofnew technology. However, these tools should be selectively and appropriately applied for the right purpose to maximise the educational value as well as providing enjoyable interactive learning experiences. The key to communication success lies not merely in the ability to construct an educational experience or make things interactive per se, but in the creativity of designer applying a considered multidisciplinary approach. However, exhibit designers who are skilled in their own design practice are not necessarily experienced in other specialist fields. Therefore, this requires a method which draws on conceptual resources frolll multidisciplinary perspectives to assist these designers in developing and evaluating interactive exhibits to effectively stimulate creativity in the target group. Given these arguments, this research is located in the following interrelated . . theoretic~1 frameworks: constructivist learning theory, the philosophy of interactivity and developmental psychology and associate.d cognitive theories of creativity and motivational drives. Collectively, these perspectives support the developmentand construction of the Creativity Surprise Model (CSM): a cognitive framework that informs a ~esign method for the design of interactive museum exhibits to stimulate creativity in children. Findings reported from the evaluation of the prototype with 118 Primary school children, have validated the effectiveness ofthe CSM guided artefact in producing creative outcomes within a user defined group. The feedback from primary educators was genuinely supportive. Comme~ts from design professional and museum exhibit developer have been variously favourable with theconceptual framework being complimentary to their practice; moreover, it can be seen to formalize their aspirations providing clear insights into multidisciplinary practice. This practical value ofthe CSM model for designers lies in its identification of a motivational link between the emotion of surprise and the generation ofcreative thinking. It targets the user group at the concrete operational stage and directly addresses how to break down the rigid processing associated with this stage of cognitive development, thus it is likely to accelerate their transition to formal -operational thinking in a lasting and positive manner. As a result ofthis research and evaluation, a process ofhow to monitor the design process and assess the effectiveness ofthe artifact was developed from the key finding ofthe conceptual model - the dynamic relationship between creativity and surprise.
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Edmundson, Jane, and University of Lethbridge Faculty of Fine Arts. "Dr. Soanes' Odditorium of Wonders : the 19th century dime museum in a contemporary context." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Arts, c2013, 2013. http://hdl.handle.net/10133/3426.
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19th century dime museums were a North American phenomenon that flourished in urban
centres from the mid- to late-1800s. Named thusly due to their low admission cost, dime
museums provided democratic entertainment that was promoted to all classes as
affordable and respectable. The resulting facilities were crammed with art, artifacts,
rarities, living human curiosities, theatre performances, menageries, and technological
marvels. The exhibition Dr. Soanes’ Odditorium of Wonders strives to recapture the spirit
and aesthetic of the dime museum to invoke wonder in the viewer and to combine art,
artifacts, and oddities to provoke questions about the boundary between education and
amusement. Both the academic and curatorial texts utilize a mix of methodological
approaches appropriate to museology, art history and cultural history: theoretical research
into historiographical issues concerning theories of display and spectacle; archival
research and discourse analysis of historical documents, and material culture analysis
(including the semiotics of display).iv, 60 leaves : ill. ; 29 cm
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Grobler, Elda. "Collections management practices at the Transvaal Museum,1913-1964 Anthropological, Archaeological and Historical /." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-05112006-101101.
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Osborne, Michelle. "The curator's room visceral reflections from within the museum : exegesis [thesis] submitted to Auckland University of Technology in partial fulfillment of the degree of Master of Art and Design, 2004." Full thesis. Abstract, 2004.
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Jensen, Rosie. "India in London : performing India on the exhibition stage, 1851-1914." Thesis, University of Exeter, 2018. http://hdl.handle.net/10871/33593.
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In India in London I explore the numerous ways that Indian identity was being corporeally represented in Victorian London. Unlike other colonial identities who were also exhibited throughout the nineteenth and early twentieth centuries, the exhibition of India in London routinely included a range of ‘authentic’ performers and entertainments, including native artisans, ethnological models of tribal and caste groups, snake charmers, conjurers, contortionists, nautch girls (Indian dancers), and theatrical spectacles. By exploring the presentations and interpretations of these embodied forms of display, I attend to the exhibition of a colonised culture that although broadly branded ‘premodern’ was also being acknowledged as an ancient and artistic civilisation and therefore could not be fully situated into an inferior category. By paying attention to contradictions such as these, I urge that, in the context of exhibiting peoples, white imperial power manifested not only through ‘savages’ but also through cultures that were more ambivalently comprehended. Therefore, while detailed evaluations of these entertainments join to and expand the scholarship that deals with the exhibition of peoples, I also show that the exhibition of India importantly accounts for the tenacious and creative strategies of the imperial ethos. Furthermore, by understanding exhibitions during this period as theatrical sites, which involved the participation of a British audience, I argue that Indian identity was partly being produced in, by and for the public imagination. In this thesis I largely explore the relationship between display and imperialism and consider how this relationship ensued through embodied, varied and performative ways of viewing, knowing, racialising, historicising and gendering India in the urban metropolis. However, by responding to the contentions and contradictions of performance, I also show that exhibited India in its assorted forms resided in numerous, often conflating, sometimes competing powers, including imperialism, entertainment, science, capitalism and nationalism in the Indian context. India as exhibition is consequently significant not only for its contribution to imperial discourse-making, but also for its disobediences to the hegemonic script. An argument thus develops in the pages to follow that although the exhibition of Indian bodies reflected, produced and promoted an image of India that the British Empire relied upon in order to succeed, they also rebounded within discourses that critiqued. Most interestingly, it is through these ambiguities that the making of imperial ideology in popular culture, the instability of British-Indian relations and the eventual downfall of the Raj can be charted. It is here that my most significant contribution lies.
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Mõistus, Kristel. "Pupils' Interaction with the Exhibits According to the Learning Behaviour Model." Thesis, Högskolan Dalarna, Vetenskapskommunikation, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:du-1159.
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Science centres are one of the best opportunities for informal study of natural science. There are many advantages to learn in the science centres compared with the traditional methods: it is possible to motivate and supply visitors with the social experience, to improve people’s understandings and attitudes, thereby bringing on and attaching wider interest towards natural science. In the science centres, pupils show interest, enthusiasm, motivation, self-confidence, sensitiveness and also they are more open and eager to learn. Traditional school-classes however mostly do not favour these capabilities. This research presents the qualitative study in the science centre. Data was gathered from observations and interviews at Science North science centre in Canada. Pupils’ learning behaviours were studied at different exhibits in the science centre. Learning behaviours are classified as follows: labels reading, experimenting with the exhibits, observing others or exhibit, using guide, repeating the activity, positive emotional response, acknowledged relevance, seeking and sharing information. In this research, it became clear that in general pupils do not read labels; in most cases pupils do not use the guides help; pupils prefer exhibits that enable high level of interactivity; pupils display more learning behaviours at exhibits that enable a high level of interactivity.
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Thai, Kevin K. (Kevin Kinh). "AGO2 in overexpression exhibits oncogenic functions KrasG̳1̳2̳D̳ -associated mouse tumor models." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/115694.
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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Biology, 2018.Cataloged from PDF version of thesis. "G̳1̳2̳D̳" in the title on title page appears as superscript. Curriculum Vitae of author on page 2.
Includes bibliographical references.
Cancer is a disease of normal healthy cells that have accumulated genetic aberrations that contribute to uncontrolled cell divisions. Generally, cancer cells have acquired gain of function mutations in oncogenes that positively promote cell proliferation and growth. Simultaneously, mutations in tumor suppressor genes are frequently detected, allowing cells to evade cell cycle checkpoints, resulting in the inhibition of cell death signals. Therefore, identifying genetic abnormalities that promote tumor initiation and progression is imperative in the development of targeted therapeutics. This thesis focuses on the role of Argonaute-2 in promoting cellular transformation in mouse model systems, highlighting novel oncogenic functions associated with AGO2 overexpression. In short, we have determined that AGO2 overexpression promotes metastasis in an autochthonous mouse model of non-small cell lung cancer while elevated AGO2 levels in B cells contribute to the initiation and maintenance of activated B cell-like diffuse large B cell lymphoma (ABC-like DLBCL), both in the context of KRAS activation and Tp53 deletion.
by Kevin K. Thai.
Ph. D.
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Nicolle, Nicholas. "Managing ichthyophonus in multi-species exhibits at the two oceans aquarium." University of the Western Cape, 2020. http://hdl.handle.net/11394/7910.
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Magister Scientiae (Biodiversity and Conservation Biology) - MSc (Biodiv and Cons Biol)Ichthyophonus hoferi has been diagnosed in multiple species at the Two Oceans Aquarium, this study focuses on Rhabdosargus globiceps (White stumpnose). I. hoferi is a mesomycetozoan parasite that multiplies in blood rich organs in the fish hosts causing a wide range of clinical signs resulting in organ dysfunction. I. hoferi can be diagnosed from microscopic examination of tissue squash preparations, culture, polymerase chain reaction (PCR) and histopathology. In the literature only lethal methods of diagnosis are described. The development of a non-lethal diagnostic tool for disease monitoring is vital for collections where euthanasia of specimens is not possible.
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McMahon, Melanie B. "Gemcitabine in Combination with Carboplatin Exhibits Biologic Activity Against Canine Osteosarcoma." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243317632.
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Medved, Maria Inge. "Remembering exhibits at museums of art, science, and sport, a longitudinal study." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq41473.pdf.
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Benne, Marcie Rae. "Methods for assessing influences of the visual-spatial environment on museum display attraction." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/30341.
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Studart, Denise Coelho. "The perceptions and behaviour of children and their families in child-orientated museum exhibitions." Thesis, University College London (University of London), 2000. http://discovery.ucl.ac.uk/1318009/.
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This study explores the part that child-orientated exhibitions play in the child and family museum experience. Such exhibitions are characterised by their distinctive approaches to learning, interpretation, and design, being especially devised for children. The research was carried out in children's galleries from three types of museum (a maritime museum, a science museum, and a children's museum) in order to compare and contrast similarities and differences between them. Since most of the research in this area has been carried out in science centres or science museums, there is a need to explore the situation in child-orientated exhibitions and compare it to studies carried out in other informal learning settings. Understanding the qualities of their experience in a child-orientated exhibition which children and families value and why and how design and interpretation decisions may affect family behaviour, perceptions, and learning, will enable educators, museum designers and other museum professionals to plan more responsive and meaningful child-centred exhibitions. Children from seven to eleven years old and their accompanying adults were considered in this study. The research involves both qualitative and quantitative approaches and the use of different methods of investigation, such as face-to-face interviews with children and an adult relative; unobtrusive observation of family group interactions at three exhibits in each gallery; and collection of children's drawings about their favourite exhibit in the galleries. The sample sizes for each investigation varied: 150 families, totaling 300 individuals, were interviewed (150 adults and 150 children); 450 different family groups were observed at the galleries (150 in each gallery); and 120 children's drawings were collected. The guiding principle was to adopt an holistic approach to the situation under investigation, taking into consideration Falk & Dierking's interactive museum experience model (Falk & Dierking, 1992), which considers the personal, social, and physical contexts of a museum visit. Findings from the observations indicated gender effects in adult splitting behaviour from the family group at exhibits according to family members joint-activity compositions, and that differences in exhibit design/tasks affected adult manipulation of hands-on exhibits and the level of proximity between family members. Nine attributes from attractive child-orientated exhibits were drawn from the observed exhibits: element of fun, challenging situation, element of surprise, child-sized exhibit design, imaginative design, opportunity for experiencing things, opportunity for role play, interactive machine/game, and teamwork. The analysis of the children's drawings revealed that drawings can be a valuable source of information about children's interactions with hands-on exhibits and can be used to assess children's understanding of exhibits through the depiction of the exhibit outcomes. The interview data was analysed qualitatively (inductive content analysis) and statistically (chi-squared tests). The analysis of the open-ended interview questions indicated that adult relatives were enthusiastic about the opportunity for the children to interact with exhibits and perceived the hands-on gallery approach as motivating to the child with regard to learning. Children perceived the exhibitions as exciting places and reported positive feelings. A few children mentioned negative feelings, which were related to problematic exhibit design. The majority of children said that they prefer to visit museums in a family context rather than in a school context. The statistical analysis of the closed questions indicated twenty-two significant associations between the adults' and children's interview variables, related to adults' and/or children's age, gender, education, perceptions, behaviour, preferences, visiting habits, and type of museum, supporting the notion that personal, social, and museum aspects affect the child's and adult's museum experience, perceptions and learning. Children's perceptions of their learning in the galleries were found to be affected by the time spent in the gallery, the type of museum, the accompanying relative, and the child's preference for the social context of the museum visit. This investigation provided new insights into the study of galleries designed for children, and has demonstrated that child-orientated exhibitions have features which positively affect the child and family museum experience, that children do perceive that they are learning in this environment, and that it is a effective catalyst for family social activity. Therefore, child-orientated exhibitions are a valuable museum provision for the child and family audiences.
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Bennett, Nadya J. "The Use of Video in Zoo Exhibits to Convey Conservation Messages to Adult Visitors." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1253470896.
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Nassrallah, Wissam. "Store-Operated Response in CA1 Pyramidal Neurons Exhibits Features of Homeostatic Synaptic Plasticity." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/33357.
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Homeostatic synaptic plasticity (HSP) regulates synaptic strength in response to changing neuronal firing patterns. This form of plasticity is defined by neurons’ ability to sense and over time integrate their level of firing activity, and to actively maintain it within a defined range. For instance, a compensatory increase in synaptic strength occurs when neuronal activity is chronically attenuated. However, the underpinning cellular mechanisms of this fundamental neural process remain poorly understood. We previously found that during activity deprivation, HSP leads to an increase in α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic (AMPA) receptor function as well as a shift in subunit composition from Ca2+-impermeable GluA2-containing AMPA receptors to Ca2+-permeable GluA2-lacking AMPA receptors not only at synapses, but also at extrasynaptic sites. Neurons therefore appear to be actively enhancing Ca2+ entry, possibly as a compensatory mechanism in response to a prolonged Ca2+ deficit. To test whether the homeostatic response may, at least in part, be mediated by internal Ca2+ stores, we depleted endoplasmic reticulum (ER) Ca2+ stores by using the Sarco/endoplasmic reticulum Ca2+ ATPases (SERCA) pump blocker cyclopiazonic acid (CPA) for a prolonged period. Interestingly, we have found that prolonged Ca2+-store depletion leads not only to an increase in synaptic strength per se, but also a cell-wide increase in synaptic Ca2+-permeable GluA2-lacking AMPARs. This increase in Ca2+ influx following periods of inactivity is conceptually highly reminiscent of a store-operated response, whereby cells re-establish their calcium levels following Ca2+ store depletion using cell surface Ca2+ channels. Our results suggest that neurons use synaptic receptors as means to regulate store Ca2+ levels, thus significantly expanding our understanding of the repertoire used by neurons to modulate cellular excitability.
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Galvan, Tamara M. "Making connections| Listening to visitor conversations at different styles of sea jelly exhibits." Thesis, California State University, Long Beach, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1523215.
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This study sought to determine what types of connections to prior experiences and knowledge were being made at two different styles of exhibits focusing on sea jellies.
Family groups, consisting of one or two adults with one or two children aged 6-11, were audio recorded and tracked as they visited a view-only or touch pool sea jelly exhibit. A short interview was given after their visit to the sea jelly exhibit. The discourse from the exhibit and survey were coded for types of learning talk. Coding was also done to determine the inspiration for the connection and the subject of the connection (structural or behavioral).
Visitors made connections regardless of the seajelly.exhibit design and results showed no differences in the type or frequency of the connections made. However, visitors were more likely to make connections on the subject of the sea jelly structure at the view only exhibit. Many of the connections, regardless of subject or inspiration, were metaphoric connections, demonstrating the importance of metaphors for making prior experience connections. Findings provide useful information for future aquarium practice.
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Stork, Lisa. "Effectiveness of interpretive exhibits at Brown v. Board of Education National Historic Site." Kansas State University, 2013. http://hdl.handle.net/2097/15645.
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Master of ScienceDepartment of Horticulture, Forestry, and Recreation Resources
Ted Cable
National parks reach out to millions of people each year by offering a number of recreational and educational experiences. People are exposed to new ideas and experiences in a national park that they may not get anywhere else. At Brown v. Board of Education National Historic Site in Topeka, Kansas, the National Park Service (NPS) compels visitors to step into the shoes of African American students in a segregated elementary school through the use of interpretive exhibits. This study was conducted to evaluate the effectiveness of the interpretive exhibits at Brown v. Board of Education National Historic Site. Most visitors sampled (91%) were visiting for the first time, indicating that the site does not have many repeat visitors. Race and the American Creed, the 30 minute film that plays in the auditorium, was found the most impactful exhibit by 34.3% of visitors surveyed. Expressions and Reflections, the temporary exhibit in the Kindergarten room, was the second most impactful exhibit, at 21.6% of visitors surveyed. The least impactful exhibit was the film Pass It On, at 0.9% of visitors surveyed. As a whole, visitors were most impacted by dynamic exhibits with a clear theme, while static exhibits and those that did not have a clear theme were not as impactful. This research will help guide Brown v. Board of Education National Historic Site staff as they contemplate future changes in the interpretive exhibits.
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Somervell, Jacob Paul. "Developing Heuristic Evaluation Methods for Large Screen Information Exhibits Based on Critical Parameters." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11206.
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Evaluation is the key to effective interface design. It becomes even more important when the interfaces are for cutting edge technology, in application areas that are new and with little prior design knowledge. Knowing how to evaluate new interfaces can decrease development effort and increase the returns on resources spent on formative evaluation. The problem is that there are few, if any, readily available evaluation tools for these new interfaces.
This work focuses on the creation and testing of a new set of heuristics that are tailored to the large screen information exhibit (LSIE) system class. This new set is created through a structured process that relies upon critical parameters associated with the notification systems design space. By inspecting example systems, performing claims analysis, categorizing claims, extracting design knowledge, and finally synthesizing heuristics; we have created a usable set of heuristics that is better equipped for supporting formative evaluation.
Contributions of this work include: a structured heuristic creation process based on critical parameters, a new set of heuristics tailored to the LSIE system class, reusable design knowledge in the form of claims and high level design issues, and a new usability evaluation method comparison test. These contributions result from the creation of the heuristics and two studies that illustrate the usability and utility of the new heuristics.Ph. D.
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Spears, Jessica, and Deyse Bravo. "Art in the Library: Using the Digital Commons Platform to Preserve Library Exhibits." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/dcseug/2018/schedule/4.
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McKee Library has cultivated relationships with local artists as well as partnered with several departments on campus to exhibit a variety of art works in different mediums throughout the year. We have used our digital commons platform to digitally preserve these exhibits, promote the artists, and encourage future partnerships. In our presentation, we will discuss the following: developing partnerships around campus and the community, artist agreements, creation of digital exhibits, and gallery promotion.
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Andersen, Evan. "An analysis of the art image interchange cycle within fine art museums /." Online version of thesis, 2010. http://hdl.handle.net/1850/11981.
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Dhanda, Mungal Singh. "A cochlear model for processing of speech signals, which exhibits nonlinearity, masking and adaptation." Thesis, University of Essex, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316239.
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Wu, Yi-Ping. "The Comfort Women in Northern East Asia As Represented by Plays, Rallies, and Exhibits." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu156409381300001.
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Issa, Mark E., E. M. K. Wijeratne, A. A. L. Gunatilaka, and Muriel Cuendet. "Withanolide D Exhibits Similar Cytostatic Effect in Drug-Resistant and Drug-Sensitive Multiple Myeloma Cells." FRONTIERS MEDIA SA, 2017. http://hdl.handle.net/10150/625811.
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In spite of recent therapeutic advances, multiple myeloma (MM) remains a malignancy with very low curability. This has been partly attributed to the existence of a drug-resistant subpopulation known as cancer stem cells (CSCs). MM-CSCs are equipped with the necessary tools that render them highly resistant to virtually all conventional therapies. In this study, the growth inhibitory effects of withanolide D (WND), a steroidal lactone isolated from Withania somnifera, on drug-sensitive tumoral plasma cells and drug-resistant MM cells have been investigated. In MTT/XTT assays, WND exhibited similar cytostatic effects between drug-resistant and drug-sensitive cell lines in the nM range. WND also induced cell death and apoptosis in MM-CSCs and RPMI 8226 cells, as examined by the calcein/ethidium homodimer and annexin V/propidium iodide stainings, respectively. To determine whether P-glycoprotein (P-gp) efflux affected the cytostatic activity of WND, P-gp was inhibited with verapamil and results indicated that the WND cytostatic effect in MM-CSCs was independent of P-gp efflux. Furthermore, WND did not increase the accumulation of the fluorescent P-gp substrate rhodamine 123 in MM-CSCs, suggesting that WND may not inhibit P-gp at the tested relevant doses. Therefore, the WND-induced cytostatic effect may be independent of P-gp efflux. These findings warrant further investigation of WND in MM-CSC animal models.
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Bobbe, Tina. "Design of Out-of-the-Lab Science Exhibits for Enabling Learning Experiences: A Research Proposal." TUDpress, 2020. https://tud.qucosa.de/id/qucosa%3A74800.
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The importance of a general public being informed about science and technology has never been greater. Research institutions add to informal science communication with face-to-face events, during which the public interacts with scientific prototypes, functioning as science exhibits, in order to learn about science. The relevance of these out-of-the-lab science exhibits, for enabling the visitor to actively learn through experiences, has neither been explored nor recognised. This article illuminates this relevance, context and background, concluding with a research procedure.
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Frank, Brian C. "AN OUTCOME-BASED ASSESSMENT SYSTEM USING HIGH GRANULARITY TESTS, ELECTRONIC EXHIBITS, AND A HYPERLINKED DATABASE." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/theses/406.
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Current accreditation preparation methods at many universities are time consuming and tedious. This is because cost prohibits many programs from purchasing commercial assessment applications. Creating an accreditation system that utilizes readily available and internally produced software reduces the time burden and cost of an accreditation process. This work presents software applications and operating procedures for a system that integrates a high granularity database to record assessment test results and student work exhibits. Database records are linked to course and program educational outcomes. The database includes fields that link student work exhibits to outcomes using a standardized filename code. This work combines a testing application, assessment database, electronic student portfolio, and standardized File Name Generator into a cohesive assessment system. This work resulted in three applications; an updated tester application, a File Name Generator, and a hyperlinked database. The applications were used in a pilot program to collect data and produce reports showing percentage scores for each outcome.
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Waite, Julia. "Under construction : national identity and the display of colonial history at the National Museum of Singapore and the Museum of New Zealand Te Papa Tongarewa : a thesis submitted to the Victoria University of Wellington in partial fulfilment of the requirements for the degree of Master of Museum and Heritage Studies /." ResearchArchive@Victoria e-Thesis, 2009. http://hdl.handle.net/10063/1039.
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Hillman, Thomas. "The physical context of hands-on interactive museum exhibits: Identification and categorization of pedagogically relevant concepts." Thesis, University of Ottawa (Canada), 2006. http://hdl.handle.net/10393/27371.
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Many options are available to designers when creating museum exhibitions. One particular option that can be chosen is the inclusion of exhibits that can be touched and manipulated, a style of exhibit often referred to as hands-on or interactive (Adams and Moussouri, 2002). Within this subset of exhibits, designers also have a multitude of choices to make that can affect the experiences visitors will have. The goal of this study is to help the transfer of research findings about learning and hands-on interactive exhibits to designers so that more-informed choices may be made. With this goal in mind, the exhibits within three exhibitions at the Montreal Science Centre are examined from a pedagogical perspective. Falk and Dierking's Contextual Model of Learning (2000) is employed as a conceptual framework, and one of its contexts is specifically addressed. Since exhibition designers act upon the objects that form exhibits, and only have direct influence on their physical nature, the physical context of Falk and Dierking's model is chosen as a lens through which to investigate the exhibits. Emergent concepts from the physical context of those exhibits are collected and then categorized. To relate the emergent concepts to a pedagogical perspective, the categories are then associated to the pedagogical triangle (Houssaye, 1988; Moore, 1989), which allows them to be organised following the roles and interactions present in that model. This study, therefore, presents a structure and common language through which the physical context of hands-on interactive museum exhibits can be understood from a pedagogical perspective.
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Linquist, Alicia G. "Knockdown of vitellogenin by RNAi increases survivorship but exhibits similar physiological responses to ovariectomy in grasshoppers." UNF Digital Commons, 2013. http://digitalcommons.unf.edu/etd/477.
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Reduced reproduction has been shown to increase lifespan in many animals, yet the mechanisms behind this trade-off are mostly unknown. A previous study has shown that in the lubber grasshopper, Romalea microptera, ovariectomized (OVX) individuals have a 30% increase in lifespan relative to controls (Sham). In a separate study, an increase in fat body mass and a halting of ovarian growth were seen upon reduction of vitellogenin transcript via RNAi (VgRNAi). These data suggest that VgRNAi increases lifespan through the trade-off between reproduction and longevity and animals with combined ovariectomy and VgRNAi, might show additive physiological responses. In this study, we used two injection control groups for the VgRNAi treatment, namely buffer injection or injection with RNAi against a 90kDa hexamerin storage protein (Hex90RNAi). We have combined these manipulations to test lifespans upon: OVX & VgRNAi, OVX & Hex90RNAi, OVX & Buffer, Sham & VgRNAi, Sham & Hex90RNAi, and Sham & Buffer. Ovariectomy and VgRNAi exhibited similar reductions in feeding (~40%) and extensions in lifespan (13-21%) but showed differences in vitellogenin protein levels. This study also observed the effects of reduced reproduction on hexamerin storage proteins. We observed that upon ovariectomy and VgRNAi, hexamerins were increased, emphasizing the importance of protein in insect life extension. When methods to reduce reproduction were combined (OVX VgRNAi), no additive physiological responses were observed, suggesting ovariectomy and VgRNAi each extend lifespan by overlapping or convergent pathways.
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Horner, Melissa A. (Melissa Amy). "The Process of Sharing Team Leadership : A Study of Key Leadership Behaviors and Who Exhibits Them." Thesis, University of North Texas, 1997. https://digital.library.unt.edu/ark:/67531/metadc278903/.
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Using a manufacturing setting that is organized into self-managed teams, the current study identified and measured key leadership behaviors within the teams. Questions that were asked include: are some team leadership behaviors more critical to a team's level of functioning than other behaviors? and do successful self-managed teams rely on formal leadership to a lesser extent than members of less successful teams? These questions were asked in the context of leadership as a process, not an individual.