Letters from the War of Ecosystems – An Analysis of Independent Software Vendors in Mobile Application Marketplaces

The recent emergence of a new generation of mobile application marketplaces has changed the business in the mobile ecosystems. The marketplaces have gathered over a million applications by hundreds of thousands of application developers and publishers. Thus, software ecosystems—consisting of developers, consumers and the orchestrator—have emerged as a part of the mobile ecosystem. This dissertation addresses the new challenges faced by mobile application developers in the new ecosystems through empirical methods. By using the theories of two-sided markets and business ecosystems as the basis, the thesis assesses monetization and value creation in the market as well as the impact of electronic Word-of-Mouth (eWOM) and developer multihoming— i. e. contributing for more than one platform—in the ecosystems. The data for the study was collected with web crawling from the three biggest marketplaces: Apple App Store, Google Play and Windows Phone Store. The dissertation consists of six individual articles. The results of the studies show a gap in monetization among the studied applications, while a majority of applications are produced by small or micro-enterprises. The study finds only weak support for the impact of eWOM on the sales of an application in the studied ecosystem. Finally, the study reveals a clear difference in the multi-homing rates between the top application developers and the rest. This has, as discussed in the thesis, an impact on the future market analyses—it seems that the smart device market can sustain several parallel application marketplaces.

Skannausratkaisun ja yleisarkiston käyttöönotto potilasasiakirjojen käsittelyyn terveydenhuollossa

Julkinen terveydenhuolto on muutoksen ja monien haasteiden edessä, kun palveluiden kysyntä ja laatuvaatimukset kasvavat. Julkisen sektorin taloudellinen tilanne aiheuttaa paineita kustannusten pienentämiseksi ja toimintojen keskittämiseen. Muutoksista huolimatta terveydenhuollon henkilökunnalla tulee olla mahdollisimman helppo ja nopea pääsy potilasta koskeviin ajantasaisiin ja olennaisiin tietoihin. Tämä diplomityö tarkastelee tietojärjestelmän käyttöönottoprosessia, paperisten potilasasiakirjojen digitalisointia ja niiden hyödyntämistä hoitoprosessissa. Tutkimuksessa esitellään paperilähetteiden käsittely, skannausratkaisun käyttöönotto ja integrointi HUS:n XDS-yleisarkistoon. Tutkimuksen teoreettinen viitekehys koostuu käyttöönottoprosessista ja siihen liittyvistä haasteista, onnistumiseen vaikuttavista tekijöistä sekä onnistumiseen mittaamiseen käytettävissä olevista malleista ja mittareista. Tietojärjestelmän käyttöönoton onnistumiseen vaikutti erityisesti ennakkosuunnittelu ja muutosvastarinnan ymmärtäminen. Tietojärjestelmän käyttöönotossa havaittiin, että muutos hyväksytään käyttäjien osalta, kun se vastaa käyttäjien todelliseen tarpeeseen. Erityisesti lähetteiden käsittely sähköisessä muodossa koettiin hyödylliseksi ja tarpeelliseksi, koska tämä mahdollisti potilastietojen saatavuuden paikasta ja ajasta riippumatta ja tuki potilaan hoitoprosessia. Käyttöönotossa havaittiin, että skannausprosessi ei voi olla samanlainen kaikkialla, koska eri yksiköissä tapahtuva skannaus voi olla potilaskeskeistä tai asiakirjatyyppien mukaan tai kompeksista ja suuriin määriin perustuvaa.

Occult hepatitis B virus infection in liver transplant patients in a Brazilian referral center

Estimates of occult hepatitis B virus (HBV) infection prevalence varies among different studies depending on the prevalence of HBV infection in the study population and on the sensitivity of the assay used to detect HBV DNA. We investigated the prevalence of occult HBV infection in cirrhotic patients undergoing liver transplantation in a Brazilian referral center. Frozen liver samples from 68 adults were analyzed using a nested polymerase chain reaction assay for HBV DNA. The specificity of the amplified HBV sequences was confirmed by direct sequencing of the amplicons. The patient population comprised 49 (72.1%) males and 19 (27.9%) females with a median age of 53 years (range=18-67 years). Occult HBV infection was diagnosed in three (4.4%) patients. The etiologies of the underlying chronic liver disease in these cases were alcohol abuse, HBV infection, and cryptogenic cirrhosis. Two of the patients with cryptic HBV infection also presented hepatocellular carcinoma. Markers of previous HBV infection were available in two patients with occult HBV infection and were negative in both. In conclusion, using a sensitive nested polymerase chain reaction assay to detect HBV DNA in frozen liver tissue, we found a low prevalence of occult HBV infection in cirrhotic patients undergoing liver transplant, probably due to the low prevalence of HBV infection in our population.

Leatherby Letters - Fall 2007

Newsletter of Chapman University's Leatherby Libraries. Volume 1, Issue 1.

Leatherby Letters - Fall 2008

Newsletter of Chapman University's Leatherby Libraries. Volume 2, Issue 1.

Leatherby Letters - Spring 2008

Newsletter of Chapman University's Leatherby Libraries. Volume 1, Issue 2.

Leatherby Letters - Spring 2009

Newsletter of Chapman University's Leatherby Libraries. Volume 2, Issue 2.

Leatherby Letters - Fall 2009

Newsletter of Chapman University's Leatherby Libraries. Volume 3, Issue 1.

Leatherby Letters Digital Issue

This is the first issue of the Leatherby Letters presented in digital format.

The condition of Niagara Falls, and the measures needed to preserve them : eight letters published in the New York Evening post, the New York tribune, and the Boston daily advertiser, during the summer of 1882 /

Appendix: Extracts from Harper's weekly, New York herald, New York tribune and the Nation.

Letters from the Secretary of War to the Committee of Ways and Means, in relation to the number of Militia called into the public service in 1813, to a provision for paying the bounties and premiums to soldiers lately authorized, and to the strength of the army.--

At head of title: [78].