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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
671

Prestationsstyrningssystem i praktiken : En kvalitativ studie om vad den personalansvariga chefens roll är i ett implementerad prestationsstyrningssystem för att nå organisatoriska mål

Eriksson, Axel, Nilsson, Filip January 2023 (has links)
Background and problems: The research field of performance management and measurement has primarily focused on financial aspects for a long time, with measurement being the focus. Performance management systems integrate both the aspects of control and measurement, resulting in a broad research area. The lack of research combined regarding the role of the staff manager within the system creates a gap that needs to be explored. Purpose: The purpose of the study is to make a theoretical contribution to the field of performance management systems. The contribution is to examine the role of the staff manager in an implemented performance management system and the achievement of organizational goals. Method: To fulfill the purpose, a qualitative research method with an abductive research approach was used. The study is a case study conducted at Handelsbanken, where the empirical data collection is based on six semi-structured interviews and an internal document.    Conclusion: The role of the staff manager is crucial and more central than previously believed in effectively using a performance management system and achieving organizational goals. By communicating the mission and vision and linking them to the employees' daily work, the system can be efficiently utilized. Daily work is monitored through evaluations, which serve as a fundamental control mechanism in the system.  By strengthening the alignment between employees and the organization, it can result in more desirable organizational outcomes. This can be achieved through a clearer reward system and linking the employees' daily work to the achievement of office goals.
672

Green Human Resource Management in a Swedish Context : An exploration into the translation of literature to practice in self-proclaimed sustainability-focused companies

Lund, Emil, Smith, Kamali January 2023 (has links)
Title: Green Human Resource Management in a Swedish Context Subtitle: An exploration into the translation of literature to practice in self-proclaimedsustainability-focused companies The purpose of this study is to investigate the implementation of green human resourcesmanagement practices within Swedish companies by applying a qualitative contentanalysis on a series of semi-structured interviews. The literature review gives a short introduction to the emerging research field of GHRM by presenting it in contrast with human resources management, highlighting the fiveareas mentioned in the research questions. The qualitative content analysis shows that the companies included in the study, with aself-proclaimed sustainability focus, do implement and utilize GHRM practices withinsome of the studied areas. The analysis concludes that the area of employee relations isheavily influenced by GHRM practices, whereas it only partly influences the area ofrecruitment and selection as well as the area of training and development. When itcomes to the areas of performance management and reward management the studyshows that, at this point, GHRM practices are negligible. The theoretical contributions very much coincides with the results of the analysis,whereas the practical contributions lie in the uncovering of actual practices regardingGHRM in Swedish companies. The research questions for the study are: How (if they do) Swedish organizations with a self-proclaimed sustainability focus,implement and utilize ‘green’ practices within the area of recruitment and selection? How (if they do) Swedish organizations with a self-proclaimed sustainability focus,implement and utilize ‘green’ practices within the area of performance management? How (if they do) Swedish organizations with a self-proclaimed sustainability focus,implement and utilize ‘green’ practices within the area of training and development? How (if they do) Swedish organizations with a self-proclaimed sustainability focus,implement and utilize ‘green’ practices within the area of reward management? How (if they do) do Swedish organizations with a self-proclaimed sustainability focus,implement and utilize ‘green’ practices within the area of employee relations?
673

Roles of the circadian and reward systems in alcoholism

Brager, Allison Joy 24 June 2011 (has links)
No description available.
674

Behavioral characterization of substituted amphetamines and their synthetic cathinone analogues in the rusty crayfish (Orconectes rusticus)

Gore, Sayali, Gore 20 November 2017 (has links)
No description available.
675

Anatomy and Pharmacology of Dopamine Transporter-Mediated Reward and Locomotor Responses to Psychostimulants

O'Neill, Brian 18 December 2012 (has links)
No description available.
676

THE INFLUENCE OF ROMANTIC PARTNERS ON MALES’ DECISION-MAKING

Silva, Karol Alejandra January 2017 (has links)
Evolutionary models of adolescent and young adult risk-taking posit that risk-taking increases during this period of the life span as a strategic way for males, in particular, to show dominance, increase perceptions of attractiveness by the opposite-sex, and maximize their chances of acquiring a romantic partner (and ultimately produce offspring). Consistent with this perspective, existing research demonstrates that attractive females increase risk-taking in single males, in part by enhancing males’ sensitivity to rewards and diminishing their ability to inhibit impulsive behavior. By contrast, romantically committed males engage in less risk taking than their single counterparts, although the mechanisms underlying the effect of romantic partners/partnerships on male risk-taking are less clear. In the present study, I employed a behavioral paradigm that has been used in prior studies of peer influence to examine how romantic partners affect decision-making processes and risk-taking behavior in young heterosexual males (18 to 24 years old). I also explored whether there are particular individual and relationship characteristics that moderate the effect of romantic partners on males’ decision-making. This study was conducted using a sample of 134 romantically involved males (mean age=20.2, SD=1.65; 64% White) who were randomly assigned to participate in one of three experimental conditions: alone, in the presence of an attractive female confederate, or in the presence of their romantic partner. Across conditions, I compared males’ behavioral performance on five outcome measures: risk taking (using the Stoplight Task), preference for immediate rewards (using a Delay Discounting Task), reward learning and cost avoidance (using a modified version of the Iowa Gambling Task), and inhibitory control over both neutral and emotionally charged stimuli (using cognitive and emotional versions of the Stroop Task). I found that the presence of romantic partners diminishes risk taking in males, but that romantic partners do not have a significant impact on males’ sensitivity to rewards (neither immediate nor long-term), sensitivity to loss (i.e., cost avoidance), or their ability to inhibit attention to interfering—neutral or emotional—stimuli. However, improvements in cognitive control in the presence of romantic partners were observed among males who report low levels of passionate love. That is, mildly infatuated males exhibited better cognitive control in the presence of their romantic partners relative to mildly infatuated males who were alone. Partner presence had no such effects among males who reported being highly infatuated with their girlfriends. The presence of an attractive female stranger triggered a protective response among romantically involved males—prompting them to take fewer risks (when they are highly committed to their partners), to more quickly avoid decisions that lead to long-term loss (among older males only), and to exhibit better cognitive control (only among males in relatively longer relationships). The presence of an attractive female stranger did not affect males’ sensitivity to rewards. Evidently, the relative impact of an attractive female stranger on males’ risk taking and decision-making is highly dependent on individual and relationship factors, a finding that emphasizes the importance of context when it comes to understanding males’ relative susceptibility to temptation (e.g., other females) and opportunities for potential risk (e.g., infidelity). By contrast, the dampening effect of romantic partners on male risk taking is neither dependent on individual or relationship characteristics nor the result of romantic partners’ influence on reward sensitivity or inhibitory control. However, given the finding that romantic partners enhance cognitive control when feelings of passionate love are relatively low, future research should examine how passionate love and cognitive control interact to predict risk taking. Although I could not identify potential mechanisms to explain why the presence of romantic partners diminishes males’ risk-taking, the current study demonstrates that under specific circumstances—such as when there is high relationship commitment or when the relationship is relatively long—the presence of an attractive female stranger can stimulate romantically involved males to engage regulatory processes that may contribute to their reduced inclination toward risky behavior in that context. This finding is consistent with prior studies and suggests that the presence of tempting stimuli and potential threats to relationship fidelity can trigger males’ deliberate engagement of regulatory processes in effort to maintain their current romantic relationship. In contrast, males’ reduced inclination to engage in risky behavior in the presence of their romantic partners may be automatically activated (without inducing a particular psychological state) regardless of individual and relationship characteristics. / Psychology
677

Who Is Satisfied With Effort?: Individual Differences as Determinants of Satisfaction With Effort and Reward

Clay, Georgia, Dumitrescu, Carmen, Habenicht, Janina, Kmiecik, Isabel, Musetti, Marzia, Domachowska, Irena 11 June 2024 (has links)
The effort required to obtain certain rewards may influence the level of satisfaction with the following reward. Since people differ in beliefs about the availability of willpower resources required to pursue effortful actions, we investigated how willpower beliefs affect the perception of effort and satisfaction with reward. We hypothesized that people with limited willpower beliefs (i.e., believing that exerting effort leads to depletion of their inner resources) will perceive cognitive tasks as more effortful and will be less satisfied with the subsequent reward than those with non-limited beliefs (i.e., believing that exerting effort is invigorating rather than depleting). We tested this hypothesis by manipulating effort with different difficulty levels of the N-back task and measuring participants’ perception of effort expenditure and subjective satisfaction with a reward depending on their willpower beliefs. In accordance with the predictions, we found that those with limited willpower beliefs perceived the task as more effortful than those with non-limited willpower beliefs. Furthermore, when asked to subjectively rate their satisfaction with the reward gained for the task, limited believers rated their satisfaction lower than non-limited believers. These findings suggest that people take their willpower capacities into effort-satisfaction calculations. Results are discussed within the context of other models of effort, and practical implications of the findings are suggested.
678

Knowledge Exchange, Technology Transfer and the Academy

Earnshaw, Rae A. January 2012 (has links)
No / The relationship between the academy and the business community is currently perceived to be important to the future of both parties. Universities provide graduates to meet the needs and requirements of society and industry, and the latter supplies products and services to meet the needs of the market place. Whether public or private, industry increasingly seeks to use tools and techniques that increase efficiency and effectiveness, whilst at the same time maximizing quality and minimizing cost. The current trend towards companies outsourcing their R & D requirements to reduce corporate overheads and optimize staffing levels means that Universities can utilize the opportunity and bid to supply this expertise. Universities also generate their own spin-outs from intellectual property they create, as well as licensing technology to industry, rather than transferring it. However, the relationship between university and industry is not without its challenges, chief of which is the historical commitment of the academy to advance knowledge whether it is directly applicable or not. In addition, there are many fundamental and important long term research issues that many would argue are the primary duty of the academy to address, which may have no direct application in the short to medium term. This is resulting in increasing tensions in the academy, and in the priorities for national and international funding agencies. There can also be significant cultural differences and reward models between the academy and industry which give rise to difficult issues for staff at the interface. This chapter reviews the current developments and the issues at the interface between business and the academy.
679

Hur påverkas den autonoma och kontrollerade motivationen av budgetlös styrning?

E Block, Hanna, Forssell, Eva January 2016 (has links)
Syfte: Med utgångspunkt från Self Determination Theory belysa hur den autonoma och kontrollerade motivationen påverkas hos medarbetare då företag arbetar budgetlöst med avseende på decentralisering, målstyrning och belöningssystem.  Metod: Studien har utgått från ett hermeneutiskt perspektiv där fenomenet som studerats ses vara av socialkonstruktivistisk art. Teori och empiri har arbetats fram iterativt med hjälp av abduktion där grunden för studien har varit i form av en fallstudie med ett kvalitativt angreppssätt genom semistrukturerade intervjuer. Intervjuguiden används som utgångspunkt vid kategoriseringen i empirin vilket analysen baseras på.   Resultat & slutsats: Studien tyder på att decentralisering och målstyrning inom budgetlös styrning främst påverkar den autonoma motivationen. Gällande belöningssystem gav inte studien något entydigt resultat men vissa indikationer på att det fanns en risk för att en kontrollerad motivation skulle kunna uppstå. Förslag till fortsatt forskning: Till vidare forskning inom budgetlös styrning föreslår vi att undersöka belöningssystem ur ett ledningsperspektiv och påverkan på deras motivation samt att undersöka huruvida det finns ett samband mellan principerna bakom en fungerande decentralisering och motivation.   Studiens bidrag: Teoretiskt bidrar studien med att decentralisering och målstyrning påverkar den autonoma motivationen positivt medans belöningssystem kan bidra till att kontrollerad motivation uppstår. Praktiskt bidrag visar att decentralisering och målstyrning ökar möjligheten till eget ansvar och beslutsfattande, detta bör dock företag arbeta mer aktivt med. / Aim: Based on the self-determination theory shed light on how the autonomous and controlled motivation  affects the employees in companies using beyond budgeting regarding to decentralization , management by objectives and reward systems. Method: This study has a hermeneutic perspective with a base of social constructivism. The theory and the empirical material have been approached iteratively with the help of abduction method. The design of the study is a case study with a qualitative approach using semi-structured interviews.The interview guide is used as the basis for categorization of empirical data which the analysis is based upon.   Result & Conclusion: The study suggests that decentralization and management by objectives using beyond budgeting primarily affects the autonomic motivation. Current reward system did not show any unequivocal results but some indications that there was a risk that a controlled motivation could arise.  Suggestions for future research:  For further research in Beyond Budgeting, we propose to investigate the reward system from a management perspective and the impact on their motivation and to investigate whether there is a connection between the principles behind the functioning of decentralization and motivation. Contribution of the thesis: From a theoretical point of view, this study contributes to decentralization and management by objectives primarily affects the autonomous motivation while the reward system may contribute to controlled motivation. Practical contribution shows that decentralization and management by objectives within Beyond Budgeting increases the possibility of personal responsibility and decision-making, this should companies work more actively with.
680

Versuchungsresistenz - Entwicklung eines fMRT-Paradigmas zur Erfassung von Selbstkontrolle und Impulsivität - neuronale Aktivierungsmuster, Persönlichkeit und genetische Faktoren -

Wimmer, Lioba 29 February 2016 (has links) (PDF)
Täglich treffen Menschen zahlreiche Entscheidungen. Häufig stellt sich dabei die Frage, ob man einer direkt verfügbaren Versuchung nachgibt oder versucht, ein in der Zukunft liegendes Ziel zu erreichen. Impulsivität und Selbstkontrolle können dabei als konfligierende Persönlichkeitseigenschaften im Entscheidungsprozess gesehen werden. In der Entscheidungsforschung wird postuliert, dass zwei getrennte Systeme existieren, die bei jeder Wahl berücksichtigt werden: ein eher impulsives und ein reflektives System. Je nach Stärke der Anteile der beiden Systeme werde eine Entscheidung getroffen. Neben behavioralen Theorien haben die Befunde der kognitiven Neurowissenschaften dazu beigetragen, den beschriebenen Systemen relevante Hirnregionen zuzuschreiben: limbische Regionen, vor allem das ventrale Striatum, werden dabei vor allem mit dem impulsiven System in Verbindung gebracht, während kortikale Strukturen, im Besonderen dorsolateraler präfrontaler (DLPFC) und anteriorer cingulärer Kortex (ACC), mit Selbstkontrolle assoziiert werden. Das Belohnungssystem ist eng mit dopaminergen Signalübertragungswegen verbunden, die unter anderem durch Gene für Dopamin- Rezeptor, -Transporter und -Abbau beeinflusst werden. Studien zur Erforschung der behavioralen Grundlagen und neuronalen Zusammenhänge menschlicher Entscheidungen haben bislang vor allem Forced-Choice-Paradigmen verwendet, bei denen sich die Probanden zwischen einer sofort verfügbaren, kleineren Belohnung und einer späteren, größeren Belohnung entscheiden müssen. Bei dieser Operationalisierung erfolgt bei jeder Entscheidung eine eindeutige Zuordnung zum impulsiven oder selbstkontrollierten System, alltägliche Entscheidungen hingegen sind meist deutlich weniger eindeutig und transparent. Aus diesem Grund wurde im Rahmen der vorliegenden Arbeit ein fMRT-Paradigma entwickelt, das menschliche Entscheidungen abbildet, ohne auf diese dichotome Einteilung zurückzugreifen. So sollten mithilfe des Versuchsresistenz-Paradigmas (VR-Paradigma) sowohl Belohnungsareale aktiviert, als auch schwierige Entscheidungen abgebildet werden. Dabei wurden den Probanden in neun Blöcken jeweils zwanzig kleine Geldbeträge (zwischen einem und 99 Cent) angeboten, von denen pro Block nur fünf gutgeschrieben werden konnten. Es wurden zwei aufeinander aufbauende Studien an unterschiedlichen Stichproben durchgeführt: Im Rahmen der ersten Studie wurden 53 männliche Studenten untersucht. Neben dem VR-Paradigma wurden psychologische Fragebögen erhoben, bei 30 Probanden erfolgte außerdem eine genetische Analyse hinsichtlich dreier Dopamin-assoziierter Polymorphismen (COMT Val158Met, DAT1 und DRD2/ANKK1 Taq 1A). In einer zweiten Studie wurden die Daten 16 männlicher alkoholabhängiger Patienten sieben bis 14 Tage nach Beginn eines Entzugs und 16 männlicher Kontrollprobanden analysiert. Diese wurden ebenfalls dem VR-Paradigma unterzogen und begleitend mithilfe psychologischer Fragebögen untersucht. Bei der Auswertung wurden die Entscheidungen im Sinne eines 2x2-Designs nach Antwort (Ja oder Nein) und Höhe (Hoch (≥ individuellem Median der gutgeschriebenen Beträge) oder Niedrig (< individuellem Median) eingeteilt. Dabei sollten Belohnungsreaktionen vor allem bei höheren Beträgen auftreten, während schwierige Entscheidungen und Versuchungsresistenz über die Ablehnung hoher Beträge und die Annahme niedriger Beträge abgebildet werden. Die Auswertung der ersten Studie erbrachte einen signifikanten Unterschied der Reaktionszeiten im VR-Paradigma bezogen auf die Höhe der angebotenen Beträge und die Interaktion von Antwort und Höhe, wobei die Ablehnung eines hohen Betrags die längsten Reaktionszeiten hervorrief. Bei hohen im Vergleich zu niedrigen Beträgen konnten Aktivierungen im bilateralen ventralen Striatum, rechten DLPFC, ACC, in der bilateralen Insula und im inferioren parietalen Lobus (IPL) nachgewiesen werden. Bei der Ausübung von Versuchungsresistenz (Interaktion der Haupteffekte) wurde dagegen der linke DLPFC aktiviert. Im Rahmen einer Konnektivitätsanalyse (psychophysiologische Interaktionen) konnte eine Korrelation der Aktivierung des linken DLPFC mit dem ventralen Striatum nur bei hohen abgelehnten Beträgen, nicht aber bei niedrigen zurückgewiesenen Beträgen gefunden werden. Bezüglich der Verbindung zwischen neuronaler Aktivierung und Persönlichkeit konnten Zusammenhänge der Belohnungsreaktion mit hohen Werten auf Impulsivitätsskalen und für Risikoverhalten sowie niedrigen Werten für Selbstkontrolle nachgewiesen werden. Für die Aktivierung in Kontrollarealen bei Versuchungsresistenz konnte ein entgegengesetzter Effekt beobachtet werden. Die Auswertung der genetischen Daten ergab eine signifikante stärkere Aktivierung des ventralen Striatums bei 10R- Homozygoten. Bei 10R-Homozygoten liegt eine erhöhte Zahl von Dopamin-Transportern an der Synapse vor, was am ehesten zu einer verringerten Verfügbarkeit von Dopamin im synaptischen Spalt führt. Die Auswertung von Studie 2 erbrachte signifikante Unterschiede der Reaktionszeiten nur bezüglich der Höhe der angebotenen Belohnung, die Gruppenzugehörigkeit (Patient- Kontrolle) und die Interaktion der Haupteffekte hatten keinen Einfluss. Die Patienten behielten signifikant häufiger eine Kaufoption bis zum Ende eines Blocks übrig. Bei der neuronalen Aktivierung konnte eine stärkere Aktivierung des linken DLPFC und linken IPL bei Patienten nachgewiesen werden. Außerdem fanden sich signifikant höhere Werte auf impulsivitätsassoziierten Persönlichkeitsskalen für Patienten im Vergleich zu Kontrollen. Im Rahmen der vorliegenden Arbeit konnten mit dem neu entwickelten VR-Paradigma neuronale Aktivierungen in Belohnungs- (v.a. ventrales Striatum) und Kontrollarealen (v.a. linker DLPFC und ACC) nachgewiesen werden. Außerdem scheint eine Konnektivität zwischen DLPFC und ventralem Striatum abhängig von der Notwendigkeit zur Ausübung kognitiver Kontrolle zu bestehen. Das Ausmaß neuronaler Aktivierung war mit Persönlichkeitsmaßen von Impulsivität und Selbstkontrolle korreliert, hier haben also interindividuelle Unterschiede in neuronaler Aktivierung Auswirkungen auf die Persönlichkeit. Der gefundene Einfluss des DAT1-Gens steht im Gegensatz zu bisherigen Befunden, dies kann mit der unterschiedlichen Operationalisierung zusammenhängen. Unterschiede zwischen alkoholabhängigen Patienten und Kontrollen hinsichtlich einer stärkeren Aktivierung in Kontrollarealen bei Patienten lassen vermuten, dass Patienten einen höheren kognitiven Aufwand zur Kontrollausübung aufwenden müssen. Mithilfe des neuartigen Versuchungsresistenz-fMRT-Paradigmas zur Versuchungsresistenz werden bekannte Hirnregionen im Entscheidungsprozess angesprochen und es bietet darüber hinaus neue Einblicke in Interaktionseffekte. Weiterführende Studien können über eine Anwendung des Paradigmas an einer größeren klinischen Stichprobe in Verbindung mit genetischer Analytik neue Einblicke in Suchtmechanismen und deren Aufrechterhaltung ermöglichen.

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