Dissertations / Theses on the topic 'Retention'

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1

Gallmon, Wanda Elaine. "Kindergarten Retention." UNF Digital Commons, 1991. http://digitalcommons.unf.edu/etd/184.

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Twenty years ago, kindergarten was a year of informal education designed to help a child develop some readiness skills, adjust to school, adjust socially and learn through play. Readiness for elementary education was defined in terms of attitude and motivation rather than in specific academic achievements. The hazards of the academic model for young children is supported by recent research. Elkind (1986), for example, confirms that young children do not learn in the same ways as older children and adults. Because the world of things, people, and language is so new to infants and young children, they learn best through direct encounters with their world rather than through formal education. During the '80s there has been an increase in the number of high-risk children entering kindergarten who may not be ready for that experience. Perhaps in response to this trend, kindergarten, rather than serving as a readiness program for future schooling, has become an experience for which children need to be prepared entering kindergarten. The National Association of Early Childhood (1987) notes that expectations have become increasingly high and unrealistic, as the curriculum from upper grades has been pushed down to lower levels, thus doom large numbers of young children to the increased possibility of failure. As a result of this change, there has been quite a controversy over the policy of kindergarten retention. Although grade retention is widely practiced at all levels, research suggests that it does not help children to "catch up." While retained children may appear to do better in the short term, they are at much greater risk for failure than are their non-retained peers (Shepard and Smith, 1990). The provision of an extra year of schooling prior to first grade is intended to protect unprepared children from entering too soon into a demanding academic environment where, 'it is thought, they will almost surely experience failure. Yet Shepard and Smith (1988) note that, "depending on the philosophical basis of kindergarten retention, which differs profoundly from one district to the next, the extra year is meant either to be a time for immature children to grow and develop learning readiness or a time to work on deficient prereading skills" (p. 34). So the criteria by which retention decisions are made are critical. The question of which criteria determine a child's kindergarten retention becomes paramount. The study examines this question by addressing the following issues: 1. Current practices regarding kindergarten retention;2. The percentage of kindergartners retained each year (locally and statewide); 3. The effects of kindergarten retention; 4. The ways in which teacher pressure, parents, standardized tests, and basal reading programs contribute to kindergarten retention; and 5. Alternatives to kindergarten retention. There will always be a group of children who lag behind their kindergarten classmates. Before we create a new program, however, we need to examine the effects of kindergarten retention. It is the intent of this study to provide county school supervisors and others with information which would enable them to take action to reverse the negative effects of past practices. This information can assist those responsible for decision-making as they struggle to make the correct decisions regarding the placement of young children.
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2

Smith, Alexander Paul. "Student Retention and Retention Information Systems in Higher Education." Thesis, The University of Arizona, 2013. http://hdl.handle.net/10150/297763.

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Student persistence and retention within the higher education system has been a concern on a broad scale and on a university scale for a long time. Information systems have only just begun to gain traction as another solution for student retention, but they are being proven to be extremely effective. Traditional retention methods such as academic assistance, skills training, student clubs, and other on-campus resources can only go so far. Student retention information systems offer a new dimension within university student retention: these information systems gather, analyze, and report persistence data to academic advisors, professors, and other faculty and staff so that university representatives can proactively help students who are at-risk of dropout or academic failure. Traditionally, these support systems have only been able to identify at-risk students based on academics –but there is much more to persistence. Student retention systems enable parties around campus to identify at-risk students based on metrics far beyond academic success. These systems also offer collaboration between supporters, so advisors are armed with a multitude of information before intervention. I believe that CampusLabs offers an excellent student retention system, Beacon, which will help our university improve academically, financially, and socially through improved student retention.
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3

Vanerek, Alois. "Filler retention in papermaking by polymeric and microparticulate retention aid systems." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85655.

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Mineral pigments are added to paper with the aim of improving its optical and printing properties. The colloidal behavior of calcium carbonate filler shows a dependence on the quality of water used in suspensions, presence of dissolved and colloidal substances and type of polymer used as a retention aid. The role of the retention aids is to attach colloidal particles, such as fines and mineral pigments, to pulp fibers before or during the paper is made. Two very different single-component retention aids were utilized in calcium carbonate fillers destabilization and deposition on fibers. Cationic polyethylenimine destabilized or facilitated deposition of the filler on fibers by a charge neutralization mechanism while cationic polyacrylamide flocculated or deposited the filler on fibers via a bridging mechanism.
In the presence of anionic dissolved and colloidal substances, the amount of cationic polyacrylamide had to be increased in order to achieve the same degree of pigment flocculation. The reason for the increase was due to the fact that the cationic polyacrylamide formed a polyelectrolyte complex with the anionic substances, namely sulfonated kraft lignin. The reaction between cationic polyacrylamide and lignin was found to be nearly stoichiometric. Low molecular weight cationic polyacrylamide formed mostly colloidal complexes while high molecular weight cationic polyacrylamide formed predominantly coacervate complexes; this was mainly due to differences in characteristic times of lignin association with the cationic polyacrylamide, clustering of polyacrylamide molecules and reconformation of polymer chains.
The performance of two-component retention aid systems consisting of a cationic polyacrylamide and anionic microparticles were evaluated by deposition of calcium carbonate filler on pulp fibers. Kaolin clay and bentonite were used to heteroflocculate polyacrylamide-covered surfaces of the fibers and pigment. Due to their inability to delaminate, kaolin clay and acid-treated montmorillonite showed no effect of calcium carbonate filler deposition. After cation exchange with sodium-rich solutions, which caused the montmorillonite to delaminate, the montmorillonite flocculation efficiency considerably improved. Kaolin clay neither delaminated after the cation exchange nor improved calcium carbonate deposition. Bentonite was found to completely delaminate when using polyacrylamide-treated fibers. When added to a suspension of fibers, filler and cationic polyacrylamide, bentonite was found to be in a form of stacks containing on average four platelets.
An alternative way to paper filling with pigment was tested on stationary sheets and on slow and fast Fourdrinier pilot paper machines. Using a secondary headbox on the pilot paper machines, a high degree of loading (above 30%) could be achieved using positive clay or calcium carbonate fillers. However, the fillers lowered the paper strength as they interfered with the fiber-fiber bonding in a similar fashion found in conventionally filled papers.
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4

Svedberg, Anna. "Improvement of the retention-fromation relationship using three-component retention aid systems." Doctoral thesis, KTH, Fiberteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-96259.

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5

Cooney, Katherine M. "Retention of child care staff understanding predictors of retention with survival analysis /." Online access for everyone, 2008. http://www.dissertations.wsu.edu/Thesis/Spring2008/k_cooney_042108.pdf.

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6

Mitsui, Kenichi. "Mechanism of fines retention and drainage with a polyacrylamidebentonite retention aid system." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33338.

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Microparticulate retention aids, consisting of a high molecular weight polymer used in conjunction with inorganic microparticles, are widely used to improve the process colloid retention in papermaking. Such additives are generally introduced to the paper stock prior to the web formation, so that fines and fillers are flocculated and retained into the forming web. This study investigated the mechanism of fines and filler retention under the high shear typical of papermaking. Retention and drainage were optimized using the newly built Laboratory Twin Former. The variables of interest include the concentrations of a cationic polyacrylamide polymer (CPAM) and bentonite, and their residence times with the furnish. The former variables provide information for optimal bridging efficiency between the furnish components, while the latter variables indicate the appropriate location for adding the retention aid to reach maximum retention. The experimental results indicated that the bridging theory well predicts a maximum retention when only CPAM is used. For the microparticulate system, a longer residence time of bentonite in the furnish is preferable so that the fines retention improves by allowing sufficient time for colloids coagulation and by promoting bentonite deposition on the polymer coated fines. We also studied the mechanism of fines retention and quantified the drainage rate at the jet impingement region, with and without retention aids. By individually varying the jet velocity and the jet angle, the two velocity components of the jet, i.e. VjetX and VjetY were controlled. The slice opening and the wire velocity were kept constant. For the range investigated, the drainage force proportional to V jetY had little effect on fines retention or drainage. A high shear impact on the wire by increasing the jet velocity, and consequently by augmenting VjetX relative to the wire speed, reduced the fines retention and restricted the drainage rate.
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7

ROMAN, Marcia. "STUDENT RETENTION IN FLORIDA COMMUNITY COLLEGES:CCSSE'S RETENTION INDEX AND FLORIDA ACCOUNTABILITY MEASURES." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3539.

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Student retention has become a serious topic in the past several decades (Wild and Ebbers, 2002). Problematic, however, is how retention is defined and measured, as well as a lack of multi-institutional studies that support a theoretical model for improving student retention, particularly in community colleges (Bailey & Alfonso, 2005). The Community College Survey of Student Engagement (CCSSE) was launched in 2001. Based on extensive research that pertains to student learning and persistence, CCSSE defined five benchmarks of educational practice. Three of the benchmarks comprise the Retention Index. CCSSE has encouraged additional studies to further validate the relatively new survey instrument. Florida's legislature has a keen interest in the performance of educational institutions which are mandated by statute to participate in system-wide data collection from which accountability measures are drawn, including institutional retention rates. Using institutional level data in simple and multiple linear regressions, this study examined the relationship between the Florida Community Colleges' CCSSE Retention Indices and their retention rate(s) measured by the Florida Accountability Measure. Student level data was also analyzed using a Nested ANOVA to examine mean differences in CCSSE Retention Index scores of students from different racial and gender groups when accounting for the possible influence of institution attended.
Ed.D.
Department of Educational Research, Technology and Leadership
Education
Educational Leadership
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8

Poon, Michael. "Deuterium retention in tungsten." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0008/MQ40899.pdf.

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9

Ruiz-Mesa, Kristina. "Diversity retention through micropractices." Click here for download, 2007. http://proquest.umi.com/pqdweb?did=1338858821&sid=1&Fmt=2&clientId=3260&RQT=309&VName=PQD.

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10

Clayton, Patricia Ann. "The retention of teachers." Thesis, Cranfield University, 1995. http://hdl.handle.net/1826/3524.

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In the late 1980s, in Britain, teacher retention was an important issue in public education, with inner city schools suffering most from teachers' unwillingness to be retained. Most labour market studies, even those written about teachers, concentrate on the 'demand side' : there are few empirical studies of the supply side. Those researched from the perspective of the employees themselves are rare. A literature search yielded three main categories of supply side job satisfactions : groupings of 0 intrinsic, extrinsic and contextual factors. A research approach was developed to establish the significance and stability of such factors in teaching. The method was one of refinement from qualitative exploration to quantitative explanation. The field work began with an analysis of student writings about their most valued experiences in informal educational settings, continued with interviews with four head teachers and tested the abstracted satisfaction characteristics with two populations : trainee teachers and established teachers. The retention factors identified were adequate resources, colleagues, community support and the feeling of doing a worthwhile job allowing for personal and professional development, in the 0 context of stable educational policy. Results were obtained by correlation and principal components analysis. A contrast is drawn between quit factors and stay factors. This analysis focuses on the collegiate nature of schools and teaching. Experienced tea6hers concur, extending this collegiality towards 00 relationships with the community through parents and governing bodies. Gender is found to be a b consistent correlate. The conclusion discusses retention and motivation in the light of the findings. Retention policies are found to omit the professional concerns of teachers. In effect, evidence of vocationalism challenges the dependence of retention on extrinsic as distinct from intrinsic and contextual factors. Gender seems to be systematically ignored by employers, particularly in attempts to proletarianise teaching, despite the statistical evidence that it is a ferninised occupation.
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11

Gauffin, Oskar. "Prediction of retention time." Thesis, Uppsala universitet, Tillämpad matematik och statistik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-253933.

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12

Siyotula-Manyoha, Nonzukiso. "Retention of black managers." Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/22833.

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The aim of this research was to identify the factors that will influence Black managers to stay in an organisation.The sample comprised of African managers of both genders, who earned above R350 000 per annum and are employed by listed companies, in Gauteng. Ready, Hill and Conger (2008) framework was adapted and four variables were used to identify the factors that will influence Black managers to stay in an organisation. The four variables were the brand of an organisation, the opportunity within an organisation, the culture within an organisation and the purpose of an organisation.The research was a quantitative study and a questionnaire was used to collect the data. This was emailed to 2500 purposively selected respondents and 100 responses were received, of which 21 were eliminated as they were not fully complete. Statistical analysis was conducted including basic descriptive, reliability testing, factor descriptive, correlation analysis and independent t-tests.The research showed the brand of an organisation, opportunity within an organisation, culture within an organisation and the purpose of an organisation have a positive impact on retention of African managers as they influence their decision to stay within the organisation.
Dissertation (MBA)--University of Pretoria, 2012.
Gordon Institute of Business Science (GIBS)
unrestricted
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13

Bartoszuk, Karin. "Overview of Retention Project." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etsu-works/4166.

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14

Linn, Robert A. "Information warfare officer retention using a capabilities-based assessment to solve retention issues." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Dec/09Dec%5FLinn.pdf.

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Thesis (M.S. in Human Systems Integration)--Naval Postgraduate School, December 2009.
Thesis Advisor: Buttrey, Samuel E. Second Reader: Shattuck, Lawrence G. "December 2009." Description based on title screen as viewed on January 26, 2010. Author(s) subject terms: retention, manpower, manning, personnel, critical skills retention bonus, capabilities based assessment, information warfare officer, functional area analysis, functional needs analysis, functional solutions analysis, prior enlisted, source of commission, survey, monetary solution, non-monetary solution. Includes bibliographical references (p. 223-226). Also available in print.
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15

Goltra, Robert Joseph III. "Student Retention Matters| A Study of Community College Student Retention Characteristics, Models, and Programs." Thesis, Lindenwood University, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13806283.

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The purpose of this study was to determine if retention of first-year college students was influenced by specific variables and programs at one Midwest community college. The study was focused on responses from the Community College Survey of Student Engagement (CCSSE) (Center for Community College Student Engagement, 2013) and peer mentoring program data. Data and retention were measured using Wald chi-square tests and t-tests, respectively. The CCSSE benchmarks were Academic Challenge, Active and Collaborative Learning, Student Effort, Student-Faculty Interactions, and Support for Learners. Benchmarks were analyzed using student variables age, gender, working for pay, student loans, and race/ethnicity. Benchmarks titled Student Effort and Support for Learners had a significant impact on retention. The relevance of this finding became clear through analyzing specific student variables to determine their impact on each specific benchmark. Also investigated were the retention rates of first-time students who participated in the college’s peer mentoring program and first-time students who did not participate in the college’s peer mentoring program. Following analysis of the data, there was a statistical difference in the retention rates of first-year, peer-mentored students and non-peer mentored, first-year students. The peer mentoring program was also studied by analyzing the effects peer mentoring had on students who were on academic probation. No statistically significant difference was found in retention rates of students who remained on academic probation and their peers who had moved off probation. Data for all aspects of peer mentoring suggested program consistency positively affects retention rates of first-year students.

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Shcheglov, Sergii, and Iuliia Shcheglova. "Retention of the restaurants’ customers." Thesis, Gotland University, Institution 2, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-426.

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Aim of this paper is to describe and analyze why customers come back to the restaurants, what influence their decisions. During the research we formulate 2 hypotheses. Hypotheses 1 – most reasons of the restaurants’ customers retention can be associated with restaurants’ service elements adapted from the 8Ps of Service Marketing Model. Hypotheses 2 - retention and loyalty have unidirectional relation – loyalty means retention of the customer, but retained customer doesn’t mean loyal. The results of empirical research support both hypotheses. Also during the empirical research we have highlighted some interesting results which are visualized in Illustration 5.1, Illustration 5.2 and Illustration 5.3. In research qualitative and quantitative approaches are used. Data collection method is interview. One deep interview was conducted with restaurant manager in order to enhance the quality of results interpretation. The results of the research can be used by marketers especially in restaurant sphere in order to better understand what influence customers’ behavior and why they come back to the service provider. Also restaurants’ managers can use our findings as a tool to increase the retention rates by adjusting relevant restaurants’ service elements within their restaurant.

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Burr, Christina Mary. "Retention prediction in RP-HPLC." Thesis, Loughborough University, 1988. https://dspace.lboro.ac.uk/2134/27346.

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A method of calculating the RP-HPLC retention indices, based on the alkylarylketone scale, has been developed. The retention indices are calculated from the molecular structure of a compound as the sum of the parent contribution, the parent index, the substituent contributions, the substituent indices, and terms to account for the interactions between substituents, the interaction indices.
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Saunders, Darla L. "Nitrogen retention in freshwater ecosystems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq64444.pdf.

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Vass, John D. V. "Retention in the Canadian Forces." Fort Leavenworth, KS : US Army Command and General Staff College, 2007. http://handle.dtic.mil/100.2/ADA475574.

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Theses (M.A. of Military Art and Science)--Army Command and General Staff College, 2007.
Title from title page of PDF document (viewed on: Apr 2, 2008). Includes bibliographical references p. 89-93.
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Du, Mont Robert B. "Junior Surface Warfare Officer retention." Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8598.

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Approved for public release; distribution is unlimited
The purpose of this thesis is to identify factors that lead to resignation of Junior Surface Warfare Officers (SWO) and to develop an hedonic model of junior SWO turnover. The first source of data was a survey of active- duty, junior SWOs currently serving aboard ships. The second source of data was a survey of 0-3 SWOs who are currently drilling in the Naval Reserves. Results of the two surveys were compared to identify differing levels of satisfaction with the active-duty Navy. The reservists also compared their satisfaction between the active-duty Navy and their current civilian employment Civilian salary levels were obtained from the reservists and their spouses to determine the pay differential between the Navy and civilian jobs for former junior SWOs. A regression model found three factors to have significant power in explaining civilian pay: years since leaving active duty, employment status, and comparative work stress between civilian employment and the active-duty Navy. SWOs with full-time employment who experienced the greatest reductions in pay also experienced the greatest reduction in work Stress. Junior SWOs experienced, on average, a 20 percent pay cut after leaving active duty. Pay returned to its pre-departure level in 2 to three years
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21

Chin, Chi-yan, and 錢誌恩. "Grade retention: the student' perception." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B3195778X.

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Burgess, Michael S. "Mechanisms of microparticle retention systems." Thesis, University of Manchester, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.617001.

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This thesis contains a comprehensive investigation into the interactions of combinations of cationic polyacrylamide polymers of varying charge density and molecular weight and six microparticles of varying size, shape and type, with two papermaking fillers (one kaolin and one precipitated calcium carbonate). The interaction and adsorption behaviour of the polymers with the microparticles and fillers were determined by back polyelectrolyte titration using a streaming current detector to determine the end point. The flocculation of these fillers with the polymers and combinations of the polymers and microparticles was monitored in real time with a Photometric Dispersion Analyser. Modification of the commercially available machine to allow the study of fibre containing papermaking furnishes has been made and is described. Detailed characterisation of the resultant floes has been undertaken by Coulter Laser Sizer and photographic means. The drainage behaviour of the floes and the flocculated furnish has been investigated and the filler retention levels measured. Mechanisms to describe the behaviour of these microparticle retention systems have been proposed.
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Patterson, Adele. "Retention properties of porous graphite." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342124.

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Hashemian, S. J. "Biomass retention in anaerobic filters." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234397.

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Tseng, Kuo-Shu. "Volatile retention during drying process." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326958.

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Åberg, Lisa, and Jessica Henry. "Employee Retention : Utifrån ett generationsperspektiv." Thesis, Högskolan i Skövde, Institutionen för handel och företagande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-15223.

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Bakgrund: Det finns idag en problematik för kunskapsintensiva företag i Sverige att lyckas bibehålla medarbetare. Detta då den svenska arbetsmarknadens utveckling har resulterat i fler högutbildade medarbetare, vilka generellt känner lite lojalitet gentemot arbetsgivaren. Företags önskan om att bibehålla medarbetare grundar sig i deras strävan att uppnå en låg personalomsättning då det anses positivt för företaget ur flera aspekter. För att studera denna problematik studeras Employee Retention-faktorer utifrån ett generationsperspektiv. Detta då medarbetares jobbvärderingar och därmed preferenser kring viktiga faktorer enligt tidigare forskning till stor del påverkas av generationstillhörigheten. Syfte: Syftet med studien är att utforska vilka faktorer som får medarbetare i olika generationer att stanna inom kunskapsintensiva företag. Detta genom att belysa Employee Retention utifrån ett medarbetarskap- samt generationsperspektiv. Metod: Studien syftar till att undersöka medarbetarnas upplevda verklighet, därför utgår studien från en kvalitativ forskningsmetod. Fallstudiemetoden har tillämpats, då denna är lämplig för att förstå komplicerade sociala företeelser. Ett centralt drag i fallstudier är att kombinera olika datainsamlingsmetoder, därför har 10 semistrukturerade intervjuer samt 25 frågeformulär med medarbetare på valt fallföretag genomförts. En analys av insamlad data har därefter genomförts, vilket resulterat i studiens slutsats. Slutsats: Studien har identifierat de viktigaste Employee Retention-faktorerna inom respektive generation och bekräftar därmed att generationstillhörigheten påverkar de faktorer som får medarbetare att stanna inom kunskapsintensiva företag. Studien har också påvisat att de viktigaste faktorerna som identifierats i respektive generationerna har en tydlig koppling till det psykologiska kontraktet. Om kunskapsintensiva företag tar hänsyn till dessa faktorer och därmed det psykologiska kontraktet, resulterar det i lojalitet och bibehållande av medarbetare.
Background: In the last couple of years there has been an ongoing change in the Swedish labor market where the knowledge-intensive companies find it harder to retain employees. This because highly educated employees generally are less experience less loyal towards the employer. Why companies wish to retain employees is because they aim for a low employee turnover, which is considered to be important for companies in several aspects. The study focus on important variables for employees, which makes them stay at a company, using a generation perspective. This perspective is used because employee’s work values and preferences are found to be affected by generational belonging. Purpose: The purpose of this study is to explore which variables that make employees with different generation belongings stay at knowledge-intensive companies. This by illustrating Employee Retention from the employee’s perspective and using a generation perspective. Method: The study applies a qualitative approach since the purpose is to explore the employee’s experienced reality. A case-study method is also applied since it’s suitable for complicated social phenomenon. Fundamental for a case-study is to combine different data collection methods, which is why 10 semi-structured interviews and 25 questionnaires are made within the case-company. The analysis of the data was then made with directions of an analysis strategy, which lead to the conclusion of the study. Conclusion: This study has identified the most important Employee Retention-variables within each generation, which also acknowledge that the generational belonging affects the variables that the employees value and consequently makes them stay at a company. The study has also shown that the most important variables that are identified in the different generations, also are found in the psychological contract. If knowledge-intensive companies identifies these variables and thereby strengthen the psychological contract, the output will be organizational loyalty and Employee Retention.
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Foley, Virginia P. "Recruitment and Retention of Teachers." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etsu-works/5993.

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Tomchin, Ellen Menaker. "Teachers' beliefs about grade retention." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/71277.

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A multimethod approach was used to gain a better understanding of teachers' beliefs about retention in grades K-7. The participants in this study were the 135 classroom and specialty teachers in one school division (with six elementary schools, K-7). Two survey instruments were developed: (a) the Teacher Retention Belief Questionnaire designed to obtain teachers' explicit beliefs about retention, and (b) the Retention Decision Simulation designed to indicate the influence of academic performance, social maturity, ability, gender, size and age on the decision to retain students. Interviews were conducted with 36 classroom teachers representing a cross section of grade levels and retention practices to discover how teachers make retention decisions. Findings suggest that teachers at all grade levels believe retention is an acceptable school practice and one they reserve the right to use. They believe retention prevents students from facing failure in the next higher grade. Teachers at all grade levels share common beliefs about the benefits for students retained in grades K-3, but are less certain about the positive effects of retaining students in grades 4-7. Academic performance of the student is a key factor in determining whether a student will be promoted, but a number of other factors including maturity, ability, age, size, and effort, also influence teachers' decisions. Findings suggest that immaturity is a more important factor for K-3 teachers and low motivation and effort are more important for 4-7 teachers. Interview data reveal that while factors such as ability may be important in determining whether a child is retained, teachers interpret such factors differently. Essentially most teachers retain students because they believe they are doing what "is in the best interest of the child." For some teachers this means giving the child time to develop academically or socially. For other teachers this means teaching the child the work ethic, if the child does not put forth effort, the child is retained.
Ph. D.
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McKenna, Michelle Bena. "Improving Student Art Vocabulary Retention." VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd/1543.

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The purpose of this investigation was to research vocabulary strategies that could help improve student art vocabulary retention. The subjects were five intact 3rd grade classes at a culturally diverse elementary school outside of Washington, DC. The vocabulary strategies, concept wheel and semantic mapping, were modified and incorporated into a string printmaking unit for two of the five classes. The remaining three classes were taught the same printmaking unit, with the exclusion of the modified vocabulary activities. The results of a labeling assessment given to each class on three separate occasions indicate that the incorporation of vocabulary activities does help students retain art vocabulary. Possible modifications of multiple proven vocabulary strategies for use in an art classroom setting are discussed.
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Chin, Chi-yan. "Grade retention : the student' perception /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1470948X.

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31

Natho, Stephanie. "Modelling nutrient retention in floodplains." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2013. http://dx.doi.org/10.18452/16854.

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Obwohl es sehr detaillierte Studien zur Nährstoffretention in einzelnen Auen und Feuchtgebieten gibt, ist die Bedeutung von Auen für die Nährstoffbilanz auf Landschaftsebene wenig untersucht. Dies liegt an dem geringen Wissensstand über die wichtigsten Parameter der Nährstoffretention, nämlich die überflutete Auenfläche sowie die in die Aue strömende Nährstofffracht. Zusätzlich gibt es bislang keinen Ansatz, demzufolge beide Parameter abhängig vom Abfluss, und damit variabel für verschiedene zeitliche Einheiten, berechnet werden können. Aus diesem Grund analysiert diese Arbeit die Überflutungshäufigkeiten der Auen von drei Flüssen, Elbe, Main und Rhein. Darauf aufbauend wird eine Abhängigkeit zwischen der überfluteten Fläche und dem Abfluss empirisch abgeleitet, die auf detaillierten Berechnungen der etablierten Software Flys basieren. Ausgehend auf diesen im Folgenden generalisierten Ergebnissen werden eine letztendlich Ereignis basierte mittlere überflutete Auenfläche sowie einströmende Nährstofffracht abhängig vom jeweiligen Abfluss berechnet. Diese und weitere Geoinformationsdaten wie auch Pegel und Gütedaten finden Eingang in jährliche und monatliche empirische Retentionsmodelle. Die berechnete Nährstoffretention in den Auen ist abhängig von der hydrologischen Konnektivität der Auen und dem tatsächlichen Abfluss. Deshalb wird letztendlich das weiterentwickelte Konzept der Ereignis bezogenen Nährstoffretention angewendet und als am realistischsten in Kombination mit hydro-exponentiellen Retentionsmodellen erachtet. Für die naturnahe Elbe werden in Monaten mit Hochwässern bis zu 9% bzw. 10% Retention der transportierten TP bzw. der NO3-N Fracht berechnet. Die Übertragbarkeit dieser Ergebnisse auf eine deutschlandweite Kulisse ist durch die generalisierten Methoden geschaffen. Die vorliegende Arbeit leistet damit einen Beitrag, die Bedeutung der Auen für die Nährstoffbilanz auf Landschaftsebene abhängig von hydrologischen Gegebenheiten zu quantifizieren.
Although there are detailed studies on nutrient retention in single wetlands and floodplains, the role of riparian floodplains for nutrient retention is not investigated very well on a landscape scale, since knowledge on the most important parameters for nutrient retention, inundated floodplains and incoming load, is insufficient. Additionally, a method for describing these parameters as discharge dependent variables is missing. Therefore, the present work analyzes the flooding frequencies on floodplains of three study rivers, Elbe, Main and Rhine. The relation of inundated floodplain extent and current discharge conditions based on detailed results of the established Software Flys is deduced empirically. Based on these subsequently generalized results, finally event related average inundated floodplain extent respectively, incoming nutrient loads are calculated by considering the effects of the hydrologic conditions of each river system. Therefore, available geodata as well as data on water quality and discharge is processed and serves as input data for yearly and monthly empirical retention models. The calculated nutrient retention in floodplains varies with hydrological connectivity of the floodplain to the surface waters as well as with the current hydrologic condition of the river system. For this reason the finally developed concept of event related nutrient retention is suggested as the most realistic in combination with hydro-exponential retention models. The Elbe floodplains are the most natural, and in years with high floods nutrient retention in the floodplains contributes up to 9% respectively 10% of the monthly transported load of TP and NO3-N, which is significant. The transfer of the results to a German-wide application is possible due the generalization of the methods carried out. With the presented results the hydrology dependent role of floodplains for nutrient balances in river systems can be quantified on a landscape scale.
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Dixon, Sherry Ann. "Retention of Information Technology Employees." ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/3152.

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Business leaders often realize greater profitability when they have strategies to retain IT employees. However, the cost to replace IT employees creates significant challenges for business leaders. Given the growing impact of technology on operational costs, retention of IT employees is imperative. This exploratory single case study sought to identify the strategies that leaders use to increase IT employee retention. The population was 6 leaders from a military organization in Norfolk, Virginia, responsible for the retention of IT employees. Herzberg's two-factor theory was the conceptual framework for this study. The data was collected from semi-structured interviews with 6 leaders along with organization documents. Data analysis and methodological triangulation included thematic analysis to identify 7 themes in the study. These 7 themes were quality of life, telework, leadership, inclusion, and staying abreast of new technology. Implications for social change include the potential for leaders to save money on recruitment and training. It also includes organizations becoming profitable through better employee retention strategies, and it adds to the body of knowledge that leaders could use to provide stable employment opportunities to individuals. The retention rates among IT employees affect individuals, families, communities, organizations, and the economy. Implementing retention strategies may result in improving employee-employer relationships and organizational profitability.
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Squillaci, Laurie Lynn. "Preceptor Training and Nurse Retention." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/303.

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Nurse turnover is a significant problem that has led to a nursing shortage in hospitals, particularly in rural hospitals. The nursing shortage will continue to grow if changes are not implemented to retain qualified nurses. Nurse turnover puts patients at risk for substandard care and increases healthcare-related costs, as organizations try to recoup costs to train and orient new nurses. Retention, turnover, and quality of care are important organizational drivers. One strategy that targets each of these drivers is to have newly hired nurses partake in a preceptorship, where a preceptor facilitates the assimilation and amalgamation of newly hired nurses into their role. Guided by the preceptor conceptual framework, the purpose of this project was to develop and plan a preceptor-training program, which targeted the field sites specific needs. Preceptor and preceptee roles were defined and training modules were created on topics such as communication, adult learning, diversity, time management, assessment, critical thinking, and problem solving. One master binder was created that contained the content required to teach each module of the preceptor-training program. The field site will use this information in conjunction with different delivery methods to implement and evaluate the program. The evaluation plan is to perform formative evaluation after each module is presented and summative evaluation at the conclusion of the allotted training days, using a Likert scale questionnaire. Establishing an instructive program for preceptor training may assist and support preceptors in their role; this program may also affect the preceptee's job satisfaction and ultimately, retention. Safe, efficient, quality care is the cornerstone of the social change implications in practice. Preceptors may feel better about the precepting process and patients may benefit from improved care.
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Brinegar, Tina Melissa. "Retention of the Experienced Nurse." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/4597.

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The nursing profession is facing a potentially devastating shortage of nurses by the year 2020. Contributing to the shortage is the retirement of experienced nurses who are over the age of 45, and an aging baby boomer population. The loss will place a considerable strain on the overloaded health systems. As a result, it is important to identify successful strategies for addressing the problem of experienced nurse retention. Therefore, the purpose of this project was to conduct a systematic review of literature to answer the question of what retention strategies have been used to prevent the loss of the experienced nurse who is approaching retirement age. The systematic review, guided by Benner's theory of novice to expert and Kanter's empowerment theory, included quantitative, qualitative and mixed methods studies published between 2007 and 2017. Studies published in the United States and Canada were 8studies selected for detailed review, were graded using the Joanna Briggs Institute grading criteria. The themes identified in this study included five key indicators: nurse autonomy and empowerment (75%), stress and burnout (62%), workplace engagement (68%), leadership commitment (56%), and training/career development action plans (56%). The key indicators may provide the basis for recommendations for managers and leaders in promoting experienced nurse retention in their work settings. Positive social change is possible when management takes into consideration the value of the key indicators above in experienced nurse retention efforts. By retaining experienced nurses, the nursing profession can promote positive patient outcomes and a mentoring plan for nurses approaching retirement age.
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Albarran, Ruth Maria, and Ranee Taechameena Sahachartsiri. "Foster parent satisfaction and retention." CSUSB ScholarWorks, 2008. https://scholarworks.lib.csusb.edu/etd-project/3399.

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This study proposed to explore several factors that promote foster parent satisfaction in order to preserve quality foster homes to serve the 532,000 displaced children currently in the child welfare system. A sample of 52 foster parents were surveyed to determine overall satisfaction with their foster care experience at Children's Way Foster Family Agency in San Bernardino, California. It was hypothesized that the higher the level of foster parent satisfaction, the higher rates of retention. A modified version of an existing instrument titled "Foster Parent Satisfaction Survey" was utilized in this study.
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36

Muhuro, Patricia. "Implementation of student retention programmes by two South African universities: towards a comprehensive student retention model." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1016085.

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Using Tinto‟s (1993) interactionalist theory of student retention and Beatty Guenter‟s (1994) students retention strategy as guiding lenses, this study investigated the implementation of five student retention programmes in two universities in South Africa. Specifically the study sought to interrogate a) the mechanisms used to select students and peer facilitators who participate in each of the programmes, b) the delivery strategies that are in place and c) the programme monitoring and/or evaluation mechanisms in place to ensure that programme goals are achieved. The study adopted a concurrent mixed design embedded in the post positivist paradigm. The study revealed minimal student participation in all programmes, including those that were compulsory, owing to inconsistent enforcement of policies, stigmatisation, and poor perceptions about these programmes. In addition, the study found challenges in selection, support and monitoring of peer facilitators in almost all the programmes. This was linked to limited qualified staff, high dependence on borrowed delivery models and poor co-ordination among stakeholders. The study through a proposed Comprehensive Model for Student Retention, suggested collaborated and intensive and ongoing training of all facilitators in functional literacies, basic counselling and handling diversity, as well as co-ordinated selection and monitoring of the five programmes.
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Alm, Therese. "Characterization of retention chemicals and their effect on the paper forming process on machine PM4, Billerud Korsnäs Gävle Mill." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-93424.

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In the papermaking industries spots in the finished product is a recurring problem. Billerud Korsnäs have in earlier studies identified poorly optimized retention systems as one of the reasons for these spots. Poorly optimized retention systems will allow for detrimental substances to flow freely in the system, which may cause agglomeration into larger particles that could end up as darker spots in the finished product. The aim of this thesis is to investigate a number of retention systems, consisting of a retention polymer and retention microparticles, and characterize the polymers.The retention aid systems task is to flocculate fibres, fines and fillers along with the colloidal material to improve process parameters. To investigate the retention systems three different retention polymers with different charge densities have been investigated alongside one microparticle. The parameters investigated in this thesis were the retention systems effect on drainage time, turbidity, charge demand and zeta potential. Pulp and white water from PM4 was used to imitate mill conditions.The results showed that the drainage time and turbidity was most effected by the retention aid systems. The polymer with the highest charge yielded the best results. Only minor effects could be detected on charge demand and Zeta potential.
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Wong, Pamela. "A comprehensive survey of retention procedures /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17941.pdf.

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39

Clevenger, Pamela L. "Managerial leadership behaviors and nurse retention." Muncie, Ind. : Ball State University, 2009. http://cardinalscholar.bsu.edu/699.

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40

Thewalim, Yasar. "Retention time predictions in Gas Chromatography." Doctoral thesis, Stockholm University, Department of Analytical Chemistry, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-55088.

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In gas chromatography, analytes are separated by differences in their partition between a mobile phase and a stationary phase. Temperature-program, column dimensions, stationary and mobile phases, and flow rate are all parameters that can affect the quality of the separation in gas chromatography. To achieve a good separation (in a short amount of time) it is necessary to optimize these parameters. This can often be quite a tedious task. Using computer simulations, it is possible to both gain a better understanding of how the different parameters govern retention and separation of a given set of analytes, and to optimize the parameters within minutes. In the research presented here, this was achieved by taking a thermodynamic approach that used the two parameters ΔH (enthalpy change) and ΔS (entropy change) to predict retention times for gas chromatography. By determining these compound partition parameters, it was possible to predict retention times for analytes in temperature-programmed runs. This was achieved through the measurement of the retention times of n-alkanes, PAHs, alcohols, amines and compounds in the Grob calibration mixture in isothermal runs. The isothermally obtained partition coefficients, together with the column dimensions and specifications, were then used for computer simulation using in-house software. The two-parameter model was found to be both robust and precise and could be a useful tool for the prediction of retention times. It was shown that it is possible to calculate retention times with good precision and accuracy using this model. The relative differences between the predicted and experimental retention times for different compound groups were generally less than 1%. The scientific studies (Papers I-IV) are summarized and discussed in the main text of this thesis.
At the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 4: Submitted.
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Guma, Pendulwa Vuyokazi. "Organisational factors impacting on employee retention." Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/1530.

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Organisations must have a constant influx of candidates for potential employment. New employee positions are required as market areas are expanded. Recruitment occurs even in the face of limited growth or decline in service capacity, because individuals with specialised skills or training who leave the organisation must be replaced, and because services or technologies that have been revised or modified must be staffed. The recruitment of personnel plays an important role in assisting the organisation to adapt and remain competitive. The Eastern Cape Department of Economic Development and Environmental Affairs (DEDEA) employs a wide variety of workers. Thus, the sources of applicants and types of methods used to expand the applicant pool vary depending on the occupational classification being considered. It, therefore, becomes self-defeating to invest significant resources in a recruitment effort if such effort is offset by high turnover rates. Retention of employees is as essential as their recruitment. The purpose of this study was to investigate the organisational factors impacting on employee retention at DEDEA. The population for the study included 781 DEDEA employees. The response rate for the emailed questionnaire was 54 percent or 425 respondents. The Likert-type scale instrument consisted of forty questions divided into two sections: Section one looked at the demographic profile of the respondents and section two focused on getting responses on the five organisational impacting on v employee retention, namely: career development; compensation; positive recognition; staff engagement and management. In order to achieve the purpose of this study, the following research design was adopted: Step 1 A literature review was conducted to determine the various organizational factors impacting on employee retention. Step 2 From the literature review, a process model was adopted to assist the researcher in structuring the research questionnaire. Step 3 A questionnaire was constructed according to the principles and guidelines in steps 2 and step 3. Step 4 Empirical data was obtained by means of an email survey. Step 5 The results of the survey were analysed and interpreted. Step 6 The empirical results were integrated with Step 3. Step 7 Conclusions and recommendations were done. The main findings from the study were: - The study revealed a significant relationship between the selected organisational factors and employee retention. - The study also produced a model suitable for use by DEDEA as a guide in determining what initiatives the organisation should embark on to improve employee retention.
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Maksimovic, Stefan. "Long-term Retention of Proprioceptive Recalibration." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36573.

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Proprioception is recalibrated following reaches with misaligned visual feedback of the hand, such that one’s sense of felt hand position is shifted in the direction of the visual feedback provided (Cressman & Henriques 2009). In the current experiment, we examined the ability of proprioceptive recalibration to be retained over an extended period of time (i.e. 4 days), and the benefits of additional training on retention in the form of recall and savings (i.e. faster re-learning on subsequent testing days). Twenty-four participants trained to reach to a target while seeing a cursor that was rotated 30° clockwise relative to their hand on an initial day of testing. Half of the participants then completed additional reach training trials on 4 subsequent testing days (Training group), whereas the second half of participants did not complete additional training (Non-Training group). Participants provided estimates of their felt hand position on all 5 testing days to establish retention of proprioceptive recalibration. Results revealed that proprioceptive recalibration was recalled 24 hours after initial training and that there was no benefit of additional training. Retention in the form of savings was observed on all days for the Training group and on Day 5 in the Non-Training group. These results reveal that proprioceptive recalibration does not benefit from additional training but is retained in the form of recall and savings. Taken together, results from the two groups of participants showed that the sensory system’s ability to change over time appeared to saturate early on, within two days of training. Moreover, the different time scales (i.e. 1 day for recall versus 4 days for savings), suggested that distinct processes may underlie recall and savings of proprioceptive recalibration.
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Hall, Henning, and Alexander Lantz. "Game mechanics’ effects on user retention." Thesis, Linköpings universitet, Interaktiva och kognitiva system, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-143710.

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In the era of smartphones and millions of apps just a few taps away, the effort required to retain the users in a particular app is increasing. Gamification is a relatively new tool to increase user engagement and is used in a wide range of apps belonging to categories far away from traditional games. Game mechanics, like achievements and leaderboards, belongs to the fundamentals of gamification. This master thesis examines how some of these game mechanics affect user retention. A custom made app game was implemented as an experiment to measure the effects of different game mechanics during a couple of months. The results indicate that game mechanics does affect some types of user retention but also that it might have no or negative impact of other types. In the end, the purpose of the app might play a central role in the decision making of picking the "right" mechanic. This demonstrates the importance of knowledge about game mechanics and their effects.
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44

Cocks, Simon. "Retention studies in supercritical fluid chromatography." Thesis, Loughborough University, 1992. https://dspace.lboro.ac.uk/2134/27880.

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There has been considerable interest in the field of Supercritical Fluid Chromatography (SFC) and it is fast becoming recognised as a very useful analytical tool, offering the speed of separation found with gas chromatography (GC) with the solvating power of high performance liquid chromatography (HPLC). The mechanism of retention in SFC is unclear and a number of competing interactions can be considered to be occurring. studies into the retention of test solutes exhibiting a variety of functional groups in different systems have been carried out using a simple home-made SFC system constructed using a pye-Unicam GC oven and a HPLC pump.
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Reid, Douglas. "Knowledge retention in computer-based training." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ65050.pdf.

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46

Wall, Roland. "Ecological conditions of stormwater retention ponds." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 56 p, 2007. http://proquest.umi.com/pqdweb?did=1253509771&sid=2&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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47

Hendriks, Margriet Megtilda Wilhelmina Bartholomea. "Nonlinear retention modeling in liquid chromatography." [S.l. : [Groningen] : s.n.] ; [University Library Groningen] [Host], 1996. http://irs.ub.rug.nl/ppn/148573207.

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48

Inman, Barbara LeSeur. "Addressing student retention at Hampton University." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 133 p, 2008. http://proquest.umi.com/pqdweb?did=1456298061&sid=5&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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49

DʹAngelo, Donna Jean. "Mechanisms governing phosphorus retention in streams /." This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-08252008-162550/.

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50

Mattar, Andrew A. G. "On the retention of learned dynamics." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84060.

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When one learns a novel motor skill, retention of that skill requires consolidation of motor learning. Previous reports have shown that preceding sessions of motor learning can interfere with the acquisition of new tasks and that new motor learning can disrupt previously retained skills. A recent study by Caithness et al. (2004) shows that new learning, even after long delays, can totally disrupt prior retention. This finding is consistent with the idea that re-activated memories become labile and subject to displacement. However the result is difficult to reconcile with day-to-day experience in which skills improve with repetition and are not disrupted by unrelated activities. In this experiment, we show that when subjects learn new dynamics the influence of one task on another depends on the similarity of the force fields involved. We used a robotic manipulandum to define environments in which subjects learned to move. We used an AB design in which subjects learned field A on day one and B on day 2. We show that the effect of having learned environment A 24-hours prior to learning B varies along a continuum from facilitation when they are identical, through little effect when they are unrelated, to total interference when they are opposite. These findings thus indicate that the nervous system encodes information about dynamics in a fashion that is predictable on the basis of the similarity between the initial and final training environments. One month following their initial training, we tested subjects environment C, whose dynamics were opposite to B. Performance on this task suggests that the nervous system retained neither discrete instances of past training nor solely the most recent motor learning, but instead constructed a running average of learned dynamics to build an individual's motor repertoire.
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