Gliotransmitters Travel in Time and Space.

The identification of the presence of active signaling between astrocytes and neurons in a process termed gliotransmission has caused a paradigm shift in our thinking about brain function. However, we are still in the early days of the conceptualization of how astrocytes influence synapses, neurons, networks, and ultimately behavior. In this Perspective, our goal is to identify emerging principles governing gliotransmission and consider the specific properties of this process that endow the astrocyte with unique functions in brain signal integration. We develop and present hypotheses aimed at reconciling confounding reports and define open questions to provide a conceptual framework for future studies. We propose that astrocytes mainly signal through high-affinity slowly desensitizing receptors to modulate neurons and perform integration in spatiotemporal domains complementary to those of neurons.

Mobiiliteknologia liikkuvan työntekijän apuna

Nomadic workers travel often between different work sites and work mainly outside their regular work place, but often require access to information stored electronically in corporate information systems. While working in field conditions, communication with an information system can be achieved by using mobile technology, i.e. mobile devices and wireless communication. This master’s thesis researches the use of mobile technology to assist nomadic field workers in their tasks. First different mobile technologies are compared and constraints that characterize mobile computing are explained. In the practical part of the thesis client software is developed for a mobile device. The software allows a nomadic construction worker to identify concrete elements and to acquire and update information concerning them. The characteristics of mobile computing and their effect on usability are taken into account when implementing the client software and the software is designed to be as easy to use as possible.

Impact of quality and environmental investment on business competitiveness and profitability: The case of travel agencies

Few studies have examined the combined effect of implementing quality and environmental management within the service sector. This void is more evident if we focus on segments in which small businesses predominate and even more so if we look for highly competitive sectors that are very variable and that have high business mortality. After analysing 198 surveys of Spanish travel agency managers using structural equations, it can be concluded that practices of quality management have a significant direct impact on business competitiveness but not on this business's financial results, at least directly. However, there is a significant relationship between environmental management practices and economic benefits. This article suggests that commitment to quality and the environment can allow small businesses in the service sector to have a competitive advantage that will separate surviving and ceased operations, particularly in sectors that are rapidly evolving and highly competitive.

Managing Subsidiary Integration During Corporate Expansion in Russia

Kansallisten rajojen yli laajentuvat yritykset kohtaavat kasvavia paineita yhtenäistää eri yksiköiden toimintatapoja, prosesseja ja järjestelmiä. Hyvin toteutettuna organisaation sisäinen integrointi voi johtaa tytäryritysten tuottavuuden parantumiseen ja strategisiin mittakaavaetuihin, kun taas huonosti toteutettuna integrointi voi johtaa lisääntyviin konflikteihin ja emoyhtiön kontrollin katoamiseen. Integroinnin kannalta Venäjälle perustettavat tytäryritykset asettavat suuria haasteita. Kasvava ja kehittyvä kansantalous on jatkuvassa muutoksessa kohti edistyneempiä ja tuottavampia toimintamalleja, mutta toisaalta yritystoiminnantaustalla vaikuttaa edelleenkin Neuvostoajan perinnöt, jotka muokkaavat yritysten johtamisrakenteita ja prosesseja. Nämä taustavaikuttajat vaikeuttavat kansainvälisen yrityksen yhtenäistämistä, mutta toisaalta tarjoavat suuria mahdollisuuksia yrityksille, jotka oppivat elämään Venäjän markkinoiden ehdoilla. Tämä tutkimus käyttää apunaan konstruktiivista tutkimustyötä ratkoakseenYIT:n Venäjälle perustettavien yritysten integrointiin liittyviä ongelmia ja mahdollisuuksia. Työn lopputuloksena syntyy oppimiseen pohjautuva integraatiostrategia ja tätä strategiaa tukeva integroinnin johtamisjärjestelmä.

Effective corporate governance : experimental evidence on international auditors'judgments and the contribution of financial accounting education

1 Summary This dissertation deals with two major aspects of corporate governance that grew in importance during the last years: the internal audit function and financial accounting education. In three essays, I contribute to research on these topics which are embedded in the broader corporate governance literature. The first two essays consist of experimental investigations of internal auditors' judgments. They deal with two research issues for which accounting research lacks evidence: The effectiveness of internal controls and the potentially conflicting role of the internal audit function between management and the audit committee. The findings of the first two essays contribute to the literature on internal auditors' judgment and the role of the internal audit function as a major cornerstone of corporate governance. The third essay theoretically examines a broader issue but also relates to the overall research question of this dissertation: What contributes to effective corporate governance? This last essay takes the perspective that the root for quality corporate governance is appropriate financial accounting education. r develop a public interest approach to accounting education that contributes to the literature on adequate accounting education with respect to corporate governance and accounting harmonization. The increasing importance of both the internal audit function and accounting education for corporate governance can be explained by the same recent fundamental changes that still affect accounting research and practice. First, the Sarbanes-Oxley Act of 2002 (SOX, 2002) and the 8th EU Directive (EU, 2006) have led to a bigger role for the internal audit function in corporate governance. Their implications regarding the implementation of audit committees and their oversight over internal controls are extensive. As a consequence, the internal audit function has become increasingly important for corporate governance and serves a new master (i.e. the audit committee) within the company in addition to management. Second, the SOX (2002) and the 8th EU Directive introduced additional internal control mechanisms that are expected to contribute to the reliability of financial information. As a consequence, the internal audit function is expected to contribute to a greater extent to the reliability of financial statements. Therefore, effective internal control mechanisms that strengthen objective judgments and independence become important. This is especially true when external- auditors rely on the work of internal auditors in the context of the International Standard on Auditing (ISA) 610 and the equivalent US Statement on Auditing Standards (SAS) 65 (see IFAC, 2009 and AICPA, 1990). Third, the harmonization of international reporting standards is increasingly promoted by means of a principles-based approach. It is the leading approach since a study of the SEC (2003) that was required by the SOX (2002) in section 108(d) was in favor of this approach. As a result, the Financial Accounting Standards Board (FASB) and the International Accounting Standards Board (IASB) commit themselves to the development of compatible accounting standards based on a principles-based approach. Moreover, since the Norwalk Agreement of 2002, the two standard setters have developed exposure drafts for a common conceptual framework that will be the basis for accounting harmonization. The new .framework will be in favor of fair value measurement and accounting for real-world economic phenomena. These changes in terms of standard setting lead to a trend towards more professional judgment in the accounting process. They affect internal and external auditors, accountants, and managers in general. As a consequence, a new competency set for preparers and users of financial statements is required. The basil for this new competency set is adequate accounting education (Schipper, 2003). These three issues which affect corporate governance are the initial point of this dissertation and constitute its motivation. Two broad questions motivated a scientific examination in three essays: 1) What are major aspects to be examined regarding the new role of the internal audit function? 2) How should major changes in standard setting affect financial accounting education? The first question became apparent due to two published literature reviews by Gramling et al. (2004) and Cohen, Krishnamoorthy & Wright (2004). These studies raise various questions for future research that are still relevant and which motivate the first two essays of my dissertation. In the first essay, I focus on the role of the internal audit function as one cornerstone of corporate governance and its potentially conflicting role of serving both management and the audit committee (IIA, 2003). In an experimental study, I provide evidence on the challenges for internal auditors in their role as servant for two masters -the audit committee and management -and how this influences internal auditors' judgment (Gramling et al. 2004; Cohen, Krishnamoorthy & Wright, 2004). I ask if there is an expectation gap between what internal auditors should provide for corporate governance in theory compared to what internal auditors are able to provide in practice. In particular, I focus on the effect of serving two masters on the internal auditor's independence. I argue that independence is hardly achievable if the internal audit function serves two masters with conflicting priorities. The second essay provides evidence on the effectiveness of accountability as an internal control mechanism. In general, internal control mechanisms based on accountability were enforced by the SOX (2002) and the 8th EU Directive. Subsequently, many companies introduced sub-certification processes that should contribute to an objective judgment process. Thus, these mechanisms are important to strengthen the reliability of financial statements. Based on a need for evidence on the effectiveness of internal control mechanisms (Brennan & Solomon, 2008; Gramling et al. 2004; Cohen, Krishnamoorthy & Wright, 2004; Solomon & Trotman, 2003), I designed an experiment to examine the joint effect of accountability and obedience pressure in an internal audit setting. I argue that obedience pressure potentially can lead to a negative influence on accountants' objectivity (e.g. DeZoort & Lord, 1997) whereas accountability can mitigate this negative effect. My second main research question - How should major changes in standard setting affect financial accounting education? - is investigated in the third essay. It is motivated by the observation during my PhD that many conferences deal with the topic of accounting education but very little is published about what needs to be done. Moreover, the Endings in the first two essays of this thesis and their literature review suggest that financial accounting education can contribute significantly to quality corporate governance as argued elsewhere (Schipper, 2003; Boyce, 2004; Ghoshal, 2005). In the third essay of this thesis, I therefore focus on approaches to financial accounting education that account for the changes in standard setting and also contribute to corporate governance and accounting harmonization. I argue that the competency set that is required in practice changes due to major changes in standard setting. As the major contribution of the third article, I develop a public interest approach for financial accounting education. The major findings of this dissertation can be summarized as follows. The first essay provides evidence to an important research question raised by Gramling et al. (2004, p. 240): "If the audit committee and management have different visions for the corporate governance role of the IAF, which vision will dominate?" According to the results of the first essay, internal auditors do follow the priorities of either management or the audit committee based on the guidance provided by the Chief Audit executive. The study's results question whether the independence of the internal audit function is actually achievable. My findings contribute to research on internal auditors' judgment and the internal audit function's independence in the broader frame of corporate governance. The results are also important for practice because independence is a major justification for a positive contribution of the internal audit function to corporate governance. The major findings of the second essay indicate that the duty to sign work results - a means of holding people accountable -mitigates the negative effect of obedience pressure on reliability. Hence, I found evidence that control .mechanisms relying on certifications may enhance the reliability of financial information. These findings contribute to the literature on the effectiveness of internal control mechanisms. They are also important in the light of sub-certification processes that resulted from the Sarbanes-Oxley Act and the 8th EU Directive. The third essay contributes to the literature by developing a measurement framework that accounts for the consequences of major trends in standard setting. Moreovér, it shows how these trends affect the required .competency set of people dealing with accounting issues. Based on this work, my main contribution is the development of a public interest approach for the design of adequate financial accounting curricula. 2 Serving two masters: Experimental evidence on the independence of internal auditors Abstract Twenty nine internal auditors participated in a study that examines the independence of internal auditors in their potentially competing roles of serving two masters: the audit committee and management. Our main hypothesis suggests that internal auditors' independence is not achievable in an institutional setting in which internal auditors are accountable to two different parties with potentially differing priorities. We test our hypothesis in an experiment in which the treatment consisted of two different instructions of the Chief audit executive; one stressing the priority of management (cost reduction) and one stressing the priority of the audit committee (effectiveness). Internal auditors had to evaluate internal controls and their inherent costs of different processes which varied in their degree of task complexity. Our main results indicate that internal auditors' evaluation of the processes is significantly different when task complexity is high. Our findings suggest that internal auditors do follow the priorities of either management or the audit committee depending on the instructions of a superior internal auditor. The study's results question whether the independence of the internal audit function is actually achievable. With our findings, we contribute to research on internal auditors' judgment and the internal audit function's independence in the frame of corporate governance.

Forensic processing of false identity and travel documents to produce intelligence: a novel approach to assist in fighting organized crime

The production and use of false identity and travel documents in organized crime represent a serious and evolving threat. However, a case-by-case perspective, thus suffering from linkage blindness and a limited analysis capacity, essentially drives the present-day fight against this criminal problem. To assist in overcoming these limitations, a process model was developed using a forensic perspective. It guides the systematic analysis and management of seized false documents to generate forensic intelligence that supports strategic and tactical decision-making in an intelligence-led policing approach. The model is articulated on a three-level architecture that aims to assist in detecting and following-up on general trends, production methods and links between cases or series. Using analyses of a large dataset of counterfeit and forged identity and travel documents, it is possible to illustrate the model, its three levels and their contribution. Examples will point out how the proposed approach assists in detecting emerging trends, in evaluating the black market's degree of structure, in uncovering criminal networks, in monitoring the quality of false documents, and in identifying their weaknesses to orient the conception of more secured travel and identity documents. The process model proposed is thought to have a general application in forensic science and can readily be transposed to other fields of study.

Managing Business Processes in Corporate Expansion

Yrityksen laajentuessa kansainvälisesti, olemassa olevat rutiinit jäävät vanhoiksi ja liiketoimintaprosessien johtaminen muuttuu. Kyseisten prosessien täytyy olla läpinäkyviä ja tietovirtojen hyvin suunniteltuja. Prosessien harmonisointi aiheuttaa haasteita yrityksessä ja konsernin etu tulee ottaa huomioon. Ahlstrom konserni laajentuu merkittävästi kaikilla liiketoiminta-alueillaan ja kansainvälinen laajentuminen vie Ahlstrom Glassfibre Oy:n täysin uuteen tilanteeseen. Liiketoimintaprosessien johtamiseen vaikuttavat konsernin ohjaus, mahdollisuudet muutosten implementoimiseksi, toimintaympäristön tekijät ja järjestelmien muodostama arkkitehtuuri. Tässä tutkimuksessa keskitytään ydinprosessien tietovirtoihin ja työ on tehty Karhulan tehtaalla Suomessa. Johtamismallin luomiseksi vaaditaan yrityksessä ongelmia määrittelevää työskentelyä. Tämä ongelmanmääritys oli työn tärkein tavoite. Ongelma-alueiden tutkimuksen pohjalta muodostettiin ratkaisu, jossa käsiteltiin systemaattisen liiketoimintaprosessien johtamisen mahdollisuuksia ja vaatimuksia. Lopputuloksena voidaan todeta, että suurin painopiste löytyy informaatioteknologian ja liiketoiminnan rajapinnoista. Tähän työhön liittyvät myös prossien harmonisointi ja integrointi.

Corporate Layoff Announcements and Shareholder Value: Empirical Evidence from Finland

Tutkimuksen tavoitteena on tutkia lyhyen aikavälin markkinareaktiota suomalaisten pörssiyhtiöiden irtisanomisilmoituksiin. Lisäksi tutkitaan poikkileikkausmenetelmän avulla, vaikuttavatko erilaiset yrityskohtaiset tekijät siihen miten osakemarkkinat suhtautuvat irtisanomisiin. Kolmantena tutkimuksen kohteena ovat maakohtaiset irtisanomisiin liittyvät tekijät sekä kuinka ekstensiivistä on yritysten tiedottaminen irtisanomisista. Aineisto sisältää 83 julkisesti annettua irtisanomistiedotetta viiden vuodenaikaväliltä (kesäkuu 2000 - kesäkuu 2005). Osakemarkkinoiden keskimääräistä reaktiota sekä kehitettyjä alihypoteeseja tutkittiin hyödyntämällä tapahtumatutkimusmetodia. Empiiriset tulokset osoittavat, että sijoittajat näkevät irtisanomisetkeskimääräisesti negatiivisina uutisina yhtiöiden markkina-arvon kannalta. Irtisanomisilmoituksia edeltävä markkinareaktio on negatiivinen tukien aiempia tutkimustuloksia Yhdysvaltojen ja Iso-Britannian markkinoilta. Erona aikaisempiin tutkimuksiin on kuitenkin se, että negatiivinen markkinareaktio on täysin hinnoiteltu jo ilmoitusta edeltävänä aikana. Tukea löytyi myös kaikille yrityskohtaisillealihypoteeseille, jotka selittävät sijoittajien reaktiota irtisanomisilmoituksiin: koko pääoman tuotto, suhdannesykli, corporate governance sekä yrityksen ja johdon maine.

Hallituksen riippumattomuus Suomen corporate governance -suosituksessa

Tutkimuksen tavoitteena on tutkia, kuinka Suomen vuonna 2004 voimaan tullut corporate governance -suositus tukee hallituksen riippumattomuutta. Tutkimuksessa määritellään hallituksen riippumattomuuden käsite. Tämän määritelmän avulla tarkastellaan, kuinka Suomen corporate governance -suosituksessa ohjataan hallituksen riippumattomuutta. Tutkimus on kvalitatiivinen tutkimus, joka on luonteeltaan osittain teoreettinen ja osittain normatiivinen. Tutkimusstrategiassayhdistyvät deskriptiivisyys ja komparatiivisuus. Tutkimuksessa Suomen corporategovernance -suosituksen hallituksen riippumattomuutta koskevia suosituksia verrataan toisaalta päämies-agenttiteorian pohjalta muodostettuun riippumattoman hallituksen määritelmään ja toisaalta keskeisimpiin ulkomaisiin corporate governance -säännöstöihin. Riippumattomaksi hallitukseksi määriteltiin hallitus, jonka toimintaa toimiva johto tai merkittävä osakkeenomistaja ei voi suoraan tai välillisesti dominoida. Suomen suosituksessa voidaan nähdä pyrkimys kohti riippumaton-ta hallitusta. Suomen suositus ei kuitenkaan tue hallituksen riippumattomuutta parhaalla mahdollisella tavalla. Sekä toimivalle johdolle että yhtiön merkittäville osakkeenomistajille jää valtaa vaikuttaa hallituksen toimintaan enemmän kuin osakkeenomistajien etujen kannalta olisi suositeltavaa.

Corporate governance kasvuyritysten rahoituskelpoisuuden nostamisen välineenä

Tutkimuksen tavoitteena oli selvittää, mitä corporate governance on nuorten yritysten kohdalla ja miten he sillä voivat parantaa omia tulevaisuuden kasvumahdollisuuksia. Tutkimuksessa haastateltiin Lappeenrantalaisia kasvuyrityksiä ja pääomasijoittajien edustajia, minkä avulla saatiin tietoa siitä, mikä on tämän hetken tilanne hyvän hallintotavan suhteen. Tutkielmassa tutkittiin eri osa-alueita, jotka tämänhetkisessä tilanteessa on yhdistetty yritysten hyvän hallintotavan mukaiseen toimintaan. Näistä asioista nostetaan esille ne peruslinjaukset, joita nuorten yritysten tulisi noudattaa, jottaheidän toimintansa noudattaisi hyvää hallintotapaa. Tämän lisäksi tutkitaan pääomasijoittamista. Tutkimuksessa käydään läpi Suomessa toimivat erityyppiset pääomasijoittajat, heidän käyttämänsä sijoitusprosessit ja - kriteerit sekä arvonmääritys. Tutkimuksessa myös käsitellään pääomasijoittamisen merkitystä nuorille yrityksille ja sitä, mitä kohdeyrityksen hyvä hallintotapa voi pääomasijoittajillemerkitä. Corporate governance mielletään vielä suurten yritysten asiaksi, muttase on myös selkeästi käännettävissä pienille yrityksille sopivaksi. Mitään yksiselitteistä suositusten listaa ei voida antaa, mutta tärkeämpää olisi saada nuoret yritykset miettimään ja panostamaan oman yrityksen hyvän hallintotavan mukaiseen toimintaan. Tämän avulla on mahdollista parantaa yrityksen toimintaedellytyksiä ja torjua uhkia.

Corporate governancen vaikutus osuustoiminnallisten yritysten riskienhallintaan

Tutkimuksen tarkoituksena on osallistua corporate governance -keskusteluun tuomalla esiin riskienhallinnan näkökulma osuustoiminnallisessa yritystoiminnassa. Tutkimuksen tavoitteena on kuvata corporate governancen vaikutuksia tuottajaosuustoiminnallisten yritysten riskienhallintaan, selvittää tuottajaosuustoiminnan riskienhallinnan tilaa ja toteutusta ja siihen vaikuttavia tekijöitä sekä tuoda esille näkökulmia riskienhallinnan kehittämiseksi tuottajaosuustoiminnallisissa yrityksissä. Tutkimus on luonteeltaan laadullinen tapaustutkimus. Tutkimuksen empiirinen aineisto kerättiin haastattelemalla kolmea osuustoiminnan asiantuntijaa ja seitsemää riskienhallinnan ja hallinnon vastuuhenkilöä. Haastattelut tehtiin vuoden 2006 kesän ja alkusyksyn aikana. Tutkimuksen perusteella corporate governancen vaikutus organisaatioiden riskienhallintaan on ollut rajallinen. Myös riskienhallintaan sidoksissa olevien toimi- ja hallintoelinten osalta suosituksilla on ollut vähäinen vaikutus. Huolimatta corporate governancen ja riskienhallinnan merkityksen lisääntymisestä tuottajaosuustoiminnallisissa yrityksissä, konkreettisella tasolla riskienhallinta ei toteudu corporate governance -periaatteiden edellyttämällä tavalla niin, että riskienhallintaa voisi kuvata kokonaisvaltaiseksi, periaatteiltaan määritellyksi ja suunnitelmalliseksi prosessiksi. Tutkimuksessa on myös pyritty nostamaan esiin riskienhallinnan eroja eri organisaatiomallien välillä. Tarkastelussaolleiden perusosuuskuntien sekä hybridimallien väliset erot liittyvät lähinnä yritysten resurssien ja koon vaikutuksista syntyviin eroihin riskienhallinnan toteutuksessa ja organisoinnissa. Merkittävään rooliin tuottajaosuustoiminnallistenyritysten riskienhallinnassa nousee erillisen riskienhallintatoiminnon osaaminen ja sen hyödyntäminen organisaatioiden riskienhallintatyössä.

In Search of Corporate Renewal: How to Benefit from Corporate Venturing?

Despite the rapid change in today's business environment there are relatively few studies about corporate renewal. This study aims for its part at filling that research gap by studying the concepts of strategy, corporate renewal, innovation and corporate venturing. Its purpose is to enhance our understanding of how established companies operating in dynamic and global environment can benefit from their corporate venturing activities. The theoretical part approaches the research problem in corporate and venture levels. Firstly, it focuses on mapping the determinants of strategy and suggests using industry, location, resources, knowledge, structure and culture, market, technology and business model to assess the environment and using these determinants to optimize speed and magnitude of change.Secondly, it concludes that the choice of innovation strategy is dependent on the type and dimensions of innovation and suggests assessing market, technology, business model as well as novelty and complexity related to each of them for choosing an optimal context for developing innovations further. Thirdly, it directsattention on processes through which corporate renewal takes place. On corporate level these processes are identified as strategy formulation, strategy formation and strategy implementation. On the venture level the renewal processes are identified as learning, leveraging and nesting. The theoretical contribution of this study, the framework of strategic corporate venturing, joins corporate and venture level management issues together and concludes that strategy processes and linking processes are the mechanism through which continuous corporate renewaltakes place. The framework of strategic corporate venturing proposed by this study is a new way to illustrate the role of corporate venturing as a purposefullybuilt, different view of a company's business environment. The empirical part extended the framework by enhancing our understanding of the link between corporate renewal and corporate venturing in its real life environment in three Finnish companies: Metso, Nokia and TeliaSonera. Characterizing companies' environmentwith the determinants of strategy identified in this study provided a structured way to analyze their competitive position and renewal challenges that they arefacing. More importantly the case studies confirmed that a link between corporate renewal and corporate venturing exists and found out that the link is not as straight forward as indicated by the theory. Furthermore, the case studies enhanced the framework by indicating a sequence according to which the processes work. Firstly, the induced strategy processes strategy formulation and strategy implementation set the scene for corporate venturing context and management processes and leave strategy formation for the venture. Only after that can strategies formed by ventures come back to the corporate level - and if found viable in the corporate level be formalized through formulation and implementation. With the help of the framework of strategic corporate venturing the link between corporaterenewal and corporate venturing can be found and managed. The suggested response to the continuous need for change is continuous renewal i.e. institutionalizing corporate renewal in the strategy processes of the company. As far as benefiting from venturing is concerned the answer lies in deliberately managing venturing in a context different to the mainstream businesses and establishing efficientlinking processes to exploit the renewal potential of individual ventures.