896 resultados para Extrinsic rewards
Resumo:
Tutkielman tavoitteena on selvittää Lappeenrannan Kylpylän johdon ja henkilöstön näkemyksiä ja mielipiteitä palkitsemisesta ja niiden avulla luoda puitteet uudelle palkitsemisjärjestelmän rakentamiselle, joka tukee yrityksen strategiaa ja tavoitteita ja on samalla henkilöstöä kannustava. Tutkimus toteutettiin kvalitatiivisena teemahaastatteluna case yrityksessä. Teemahaastattelujen avulla haettiin vastauksia henkilöstön kannalta kannustaviksi palkitsemistavoiksi. Samalla kartoitettiin henkilöstön strategiatuntemusta. Yrityksen tämänhetkinen palkitseminen perustuu perinteisiin taulukkopalkkoihin. Muina palkitsemismuotoina ovat henkilöstöedut ja satunnaiseterikois- palkitsemiset ja työvuosista huomioimiset. Tutkimuksessa todettiin, että toiminta on murrosvaiheessa, jossa suurin asiakasryhmä on häviämässä. Yritys tarvitsee uusia tapoja toimia ja ohjata toimintaa uuteen suuntaan. Myös hyvien työntekijöiden saaminen alalla on vaikeutumassa. Tutkimuksessa havaittiin, että henkilöstön toiveet palkitsemisesta ovat enemmän yhteisen palkitsemisen kannalla,kuin strategiaa tukevan, tuloksiin perustuvan palkitsemisen kannalla.
Resumo:
Tutkimuksen tavoitteena on selvittää, mitä vaatimuksia suomalainen lainsäädäntö, IFRS-standardit, corporate governance - suosituksetja pörssin suositukset asettavat johdon palkkiosta tiedottamiselle ja kuinka laajasti tietoa tosiasiassa annetaan. Pörssiyhtiöiden tiedotuksen avoimuutta lähestytään tutkimalla, millaisia palkkioita ja kannustimia sekä päätöksentekotapoja on olemassa. Yhtiöiden omistuksen ja johtamisen eriytyessä syntyy päämies-agentti-ongelma. Johdon ja omistajien intressejä lähennetään palkkiojärjestelmien avulla. Palkitsemisen tarkoitus on kannustaa yrityksen johtoa toimimaan omistajan edun mukaisesti. Tutkimus on kvalitatiivinen ja tutkimusmenetelmä on deskriptiivinen: kuvailun ja luokittelun kautta pyritään analyysiin yritysten avoimuudesta palkkioiden suhteen. Tutkimus toteutettiinvertaamalla yhtiöiden Internet-sivuja ja vuosikertomuksia vuodelta 2004 määritettyihin kriteereihin. Tutkimuksen aineistona toimivat Helsingin arvopaperipörssin päälistan yhtiöt. Tutkimuksessa havaittiin, että palkkauksen muotoa tärkeämpää on palkitsemisen kokonaisuus ja siihen liittyvä päätöksenteko. Suomalaiset pörssiyhtiöt tiedottavat johdon palkkioista kohtuullisen hyvin, mutta erityisesti palkkioiden perusteista voisi kertoa tarkemminkin. Internetin tarjoamia mahdollisuuksia hyödynnetään kiitettävästi. Liike-vaihdoltaan suurimmatyritykset tiedottavat kautta linjan pienempiä tarkemmin.
Resumo:
Este artículo se basa en parte de los resultados de la investigación del autor sobre la identificación de los factores motivacionales que subyacen en las decisiones que toman los profesores sobre su participación en actividades de formación permanente. Se concluyó que, si bien los profesores deciden participar en estas actividades principalmente por la presencia de ciertos factores motivadores o intrínsecos que afectan a su instrumentalidad percibida, sus decisiones de no participar se basan principalmente en la ausencia de otros factores extrínsecos que afectan a la expectativa de realización de las actividades.
Resumo:
Many species are able to learn to associate behaviours with rewards as this gives fitness advantages in changing environments. Social interactions between population members may, however, require more cognitive abilities than simple trial-and-error learning, in particular the capacity to make accurate hypotheses about the material payoff consequences of alternative action combinations. It is unclear in this context whether natural selection necessarily favours individuals to use information about payoffs associated with nontried actions (hypothetical payoffs), as opposed to simple reinforcement of realized payoff. Here, we develop an evolutionary model in which individuals are genetically determined to use either trial-and-error learning or learning based on hypothetical reinforcements, and ask what is the evolutionarily stable learning rule under pairwise symmetric two-action stochastic repeated games played over the individual's lifetime. We analyse through stochastic approximation theory and simulations the learning dynamics on the behavioural timescale, and derive conditions where trial-and-error learning outcompetes hypothetical reinforcement learning on the evolutionary timescale. This occurs in particular under repeated cooperative interactions with the same partner. By contrast, we find that hypothetical reinforcement learners tend to be favoured under random interactions, but stable polymorphisms can also obtain where trial-and-error learners are maintained at a low frequency. We conclude that specific game structures can select for trial-and-error learning even in the absence of costs of cognition, which illustrates that cost-free increased cognition can be counterselected under social interactions.
Resumo:
Abstract: This study aims at identifying the organisational antecedents of public service motivation (PSM). It focuses on human resources management (HRM) practices as one category of organisational factors that impact on PSM. Concretely, this research questions how intrinsic and extrinsic HRM practices are related to PSM and whether these relationships are direct or mediated by person-organisation (P-O) fit. The empirical findings are based on a survey of 6,885 civil servants working in Switzerland. Regression analyses highlight that intrinsic HRM practices are positively related to PSM, whereas extrinsic ones are negatively related to PSM. Furthermore, mediation tests shows that only the intrinsic HRM practices are mediated by PO fit. Thus, civil servants who value intrinsic work incentives maintain a high PSM level when they perceive congruence between their individual expectations and the values of their organisation.
Resumo:
Lesioned axons do not regenerate in the adult mammalian central nervous system, owing to the overexpression of inhibitory molecules such as myelin-derived proteins or chondroitin sulphate proteoglycans. In order to overcome axon inhibition, strategies based on extrinsic and intrinsic treatments have been developed. For myelin-associated inhibition, blockage with NEP1-40, receptor bodies or IN-1 antibodies has been used. In addition, endogenous blockage of cell signalling mechanisms induced by myelin-associated proteins is a potential tool for overcoming axon inhibitory signals. We examined the participation of glycogen synthase kinase 3 (GSK3) and ERK1/2 in axon regeneration failure in lesioned cortical neurons. We also investigated whether pharmacological blockage of GSK3 and ERK1/2 activities facilitates regeneration after myelin-directed inhibition in two models: i) cerebellar granule cells and ii) lesioned entorhino-hippocampal pathway in slice cultures, and whether the regenerative effects are mediated by Nogo Receptor 1 (NgR1). We demonstrate that, in contrast to ERK1/2 inhibition, the pharmacological treatment of GSK3 inhibition strongly facilitated regrowth of cerebellar granule neurons over myelin independently of NgR1. Lastly these regenerative effects were corroborated in the lesioned EHP in NgR1 -/- mutant mice. These results provide new findings for the development of new assays and strategies to enhance axon regeneration in injured cortical connections.
Resumo:
Educational institutions are considered a keystone for the establishment of a meritocratic society. They supposedly serve two functions: an educational function that promotes learning for all, and a selection function that sorts individuals into different programs, and ultimately social positions, based on individual merit. We study how the function of selection relates to support for assessment practices known to harm vs. benefit lower status students, through the perceived justice principles underlying these practices. We study two assessment practices: normative assessment-focused on ranking and social comparison, known to hinder the success of lower status students-and formative assessment-focused on learning and improvement, known to benefit lower status students. Normative assessment is usually perceived as relying on an equity principle, with rewards being allocated based on merit and should thus appear as positively associated with the function of selection. Formative assessment is usually perceived as relying on corrective justice that aims to ensure equality of outcomes by considering students' needs, which makes it less suitable for the function of selection. A questionnaire measuring these constructs was administered to university students. Results showed that believing that education is intended to select the best students positively predicts support for normative assessment, through increased perception of its reliance on equity, and negatively predicts support for formative assessment, through reduced perception of its ability to establish corrective justice. This study suggests that the belief in the function of selection as inherent to educational institutions can contribute to the reproduction of social inequalities by preventing change from assessment practices known to disadvantage lowerstatus student, namely normative assessment, to more favorable practices, namely formative assessment, and by promoting matching beliefs in justice principles.
Resumo:
This thesis examines the experience travelling and incentive travelling in the area of Etela-Savo. The incentive travels have become more popular in the recent years. The enterprises and companies have started to reward their staff for efficiency by giving them experience travels instead of money rewards. The staff needs refreshing because of the development of work technology and because of physical and mental demands of the work. Short experience travels with activities give motivation and refresh the staff. There were two target groups in this thesis: entrepreneurs which produce the experiences and the staffs which have proved them. With the help of these target groups experience products, activities and travelling possibilities were studied and also how the experiences had been felt and where they had been acquired from. There are theoretical and empirical parts in this thesis. The research methodology was mainly idiographical and also qualitative and quantitative research methods were used. The empirical information was collected with the help of a questionnaire and a theme interview. The result of the study was that the area's travelling attractions, which are the nature, hundreds of lakes, large forests and the beautiful landscape give good possibilities to experience travelling and incentive travelling. The experience must contain a physical, social and mental element. A good experience activity must also contain some actions in the nature, light physical exercise and a possibility to the customer to take part in action. The experience feeling was felt as an unique happening and enjoyment, which will help the customers managing in their work, removing stress and developing team working skills. The experience was caused by the contrast between work/everyday life and the happening, and by succeeding in the activity in addition they felt a very strong community spirit in the experience feeling. Women received the experience feeling much more strongly than men. There were also differences in feelings between ages.
Resumo:
Tutkimuksessa suunnitellaan projektipalkkiojärjestelmä tuotekehityspalveluita tarjoavalle asiantuntijapalveluyritykselle. Projektipalkkioiden avulla pyritään kannustamaan asiantuntijoita huomioimaan projektien menestystekijät. Asiantuntijapalveluiden projektiliiketoiminnassa menestystekijöillä tavoitellaan asiakastyytyväisyyttä ja toiminnan kannattavuutta. Kirjallisuustutkimus jakaantuu kahteen pääosaan. Ensin tutkitaan suoritusperusteisen palkitsemisjärjestelmän teoriaa ja sen jälkeen asiantuntijapalveluiden erityispiirteitä. Käytännön osuudessa tutkitaan kohdeorganisaation motiiveja ja resursseja palkitsemisjärjestelmän käyttöönotossa sekä perehdytetään projektitoiminnan prosesseihin, joihin palkitsemisjärjestelmä sulautetaan. Tutkimuksen lopputuloksena dokumentoidaan uuden projektipalkkiojärjestelmän rakenne ja prosessit. Palkitsemisen perusteena käytettävät projektitoiminnan menestystekijät kohdeyrityksessä muodostetaan teoreettisista malleista ja yritystason strategiasta. Lopuksi syntynyttä järjestelmää testataan vertaamalla sitä teoriatutkimuksen asettamiin vaatimuksiin.
Resumo:
Tämän tutkimuksen avulla on haettu parannusehdotuksia sisäisen viestinnän keinoin toteutettavaan yrityksen strategian viestintään. Tutkimuksen case-yrityksenä on UPM:n Kymin tehdas. Tutkimus perustuu etukäteen yrityksessä tehtyjen erilaisten viestintätutkimusten analysointiin sekä saatujen tulosten vertailuun teoriaan ja yrityksessä asetettuihin viestinnän tavoitteisiin. Tutkittavan aineiston perusteella tutkimus voidaan luokitella sekä laadulliseen että määrälliseen tutkimukseen. Aineiston laajuuden ja erilaisuuden takia se käsitellään laadullisen analyysin mukaan. Teoreettisena viitekehyksenä on suhdemarkkinointi ja edelleen sisäinen markkinointi. Teoreettisesti asiaa tarkastellaan myös johtamisen ja viestinnän näkökulmasta. Tietämyksen, ymmärryksen, osaamisen, osallistumisen ja palkitsemien kautta saadaan ihmiset hyväksymään asetetut strategiat ja muutos. Sisäinen viestintä saadaan parhaiten palvelemaan strategian viestintää johdon ja esimieskunnan viestintäosaamisen ja asenteen varmistamisella. Kaikkia viestintäkanavia tarvitaan, mutta niiden oikea hallinta ja tärkeyden painotus on tärkeä. Viestinnän strategian ja toimenpiteiden suunnittelu ovat asia, jota ei voi unohtaa. Näitä vielä tärkeämpää on strategisten viestien sisältö.
Resumo:
Tässä pro gradu tutkielmassa tarkastellaan viihteen laadun tekijöitä nykyaikaisissa tietokonepeleissä ja niiden vaikutusta pelin viihdytysarvoon. Tutkielmassa on analysoitukeskeisiä pelialan artikkeleita, jotka käsittelevät pelaajien vaatimuksia hyvältä peliltä. Artikkeleita analysoimalla on löydetty 14 erilaista tietokonepelin viihdearvon osatekijää: osallistuminen, palaute, säännöt, pelaamaan oppiminen, mielekäs tekeminen, kilpailu, immersio, yhtenäinen ja ymmärrettävä pelimaailma, tarinan luominen, turvalliset kokemukset, sosiaalinen pääoma, ennakko-odotukset, tekniset vaatimukset ja markkinoiden odotukset. Löydettyjä viihteen laadun osatekijöitä etsitään pelityypin mukaan valittuista 12 nykypelistä, ja tulokset paljastavat, että tietyt tekijät ovat yhtenäisiä hyviksi koetuilla peleillä. Hyvät pelit näyttäisivät omaavan toimivat kontrollit, selkeät palautteet, tasapainoiset säännöt, mielenkiintoista tekemistä, palkintoja etenemisestä ja mahdollisuuksia vaikuttaa pelin tapahtumiin koko pelaamisen ajan. Hyväksi peliksi on määritelty peli, joka sai keskiarvokseen 90% tai enemmän peliarvosteluissa jaetuista pisteistä. Lisäksi hyvän pelin ei näyttäisi tarvitsevan toteuttaa täydellisesti kaikkia viihteellisen laadun osatekijöitä.
Resumo:
Adult neurogenesis is regulated by the neurogenic niche, through mechanisms that remain poorly defined. Here, we investigated whether niche-constituting astrocytes influence the maturation of adult-born hippocampal neurons using two independent transgenic approaches to block vesicular release from astrocytes. In these models, adult-born neurons but not mature neurons showed reduced glutamatergic synaptic input and dendritic spine density that was accompanied with lower functional integration and cell survival. By taking advantage of the mosaic expression of transgenes in astrocytes, we found that spine density was reduced exclusively in segments intersecting blocked astrocytes, revealing an extrinsic, local control of spine formation. Defects in NMDA receptor (NMDAR)-mediated synaptic transmission and dendrite maturation were partially restored by exogenous D-serine, whose extracellular level was decreased in transgenic models. Together, these results reveal a critical role for adult astrocytes in local dendritic spine maturation, which is necessary for the NMDAR-dependent functional integration of newborn neurons.
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Exiting from the largely sterile environment of the womb, the neonatal immune system is not fully mature, and thus neonatal immune cells must simultaneously mount responses against environmental stimuli while maturing. This dynamic process of immune maturation is driven by a variety of cell-intrinsic and extrinsic factors. Recent studies have focused on some of these factors and have shed light on the mechanisms by which they drive immune maturation. We review the interactions and consequences of immune maturation during the pre- and perinatal period. We discuss environmental signals in early life that are needed for healthy immune homeostasis, and highlight detrimental factors that can set an individual on a path towards disease. This early-life period of immune maturation could hold the key to strategies for setting individuals on trajectories towards health and reduced disease susceptibility.
Resumo:
Melanoma is one of the most aggressive types of skin cancer and its incidence rate is still increasing. All existing treatments are minimally effective. Consequently, new therapeutic agents for melanoma treatment should be developed. The DM-1 compound is a curcumin analog that possesses several curcumin characteristics, such as antiproliferative, antitumor, and anti-metastatic properties. The aim of this study was to evaluate the different signaling pathways involved in the cytotoxic effect of DM-1 on melanoma cells. The apoptotic process and cytoskeletal changes were evaluated by immunoblotting and immunofluorescence, respectively, in melanoma cells. After DM-1 treatment, SK-MEL-5 melanoma cells showed actin filament disorganization with spicule formation throughout the cytoskeleton and significant reduction of focal adhesion as well as they were present only at cell extremities, conferring a poor connection between the cell and the substrate. Besides this, there was significant filopodium retraction and loss of typical cytoskeleton scaffold. These modifications contributed to cell detachment followed by cell death. Furthermore, DM-1-induced apoptosis was triggered by multiple Bcl-2 proteins involved in both the extrinsic and the intrinsic apoptotic pathways. SK-MEL-5 cells showed a death mechanism mainly by Bcl-2/Bax ratio decrease, whereas A375 cells presented apoptosis induction by Mcl-1 and Bcl-xL downregulation. In SK-MEL-5 and A375 melanoma cells, there was a significant increase in the active form of caspase 9, and the inactive form of the effector caspase 3 was decreased in both cell lines. Expression of cleaved poly ADP ribose polymerase was increased after DM-1 treatment in these melanoma cell lines, demonstrating that the apoptotic process occurred. Altogether, these data elucidate the cellular and molecular mechanisms involved in the cytotoxicity induced by the antitumor agent DM-1 in melanoma cells.
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The availability of stem cells is of great promise to study early developmental stages and to generate adequate cells for cell transfer therapies. Although many researchers using stem cells were successful in dissecting intrinsic and extrinsic mechanisms and in generating specific cell phenotypes, few of the stem cells or the differentiated cells show the capacity to repair a tissue. Advances in cell and stem cell cultivation during the last years made tremendous progress in the generation of bona fide differentiated cells able to integrate into a tissue after transplantation, opening new perspectives for developmental biology studies and for regenerative medicine. In this review, we focus on the main works attempting to create in vitro conditions mimicking the natural environment of CNS structures such as the neural tube and its development in different brain region areas including the optic cup. The use of protocols growing cells in 3D organoids is a key strategy to produce cells resembling endogenous ones. An emphasis on the generation of retina tissue and photoreceptor cells is provided to highlight the promising developments in this field. Other examples are presented and discussed, such as the formation of cortical tissue, the epithelial gut or the kidney organoids. The generation of differentiated tissues and well-defined cell phenotypes from embryonic stem (ES) cells or induced pluripotent cells (iPSCs) opens several new strategies in the field of biology and regenerative medicine. A 3D organ/tissue development in vitro derived from human cells brings a unique tool to study human cell biology and pathophysiology of an organ or a specific cell population. The perspective of tissue repair is discussed as well as the necessity of cell banking to accelerate the progress of this promising field.