Coopetition of software firms in Open source software ecosystems

Software firms participate in an ecosystem as a part of their innovation strategy to extend value creation beyond the firms boundary. Participation in an open and independent environment also implies the competition among firms with similar business models and targeted markets. Hence, firms need to consider potential opportunities and challenges upfront. This study explores how software firms interact with others in OSS ecosystems from a coopetition perspective. We performed a quantitative and qualitative analysis of three OSS projects. Finding shows that software firms emphasize the co-creation of common value and partly react to the potential competitiveness on OSS ecosystems. Six themes about coopetition were identified, including spanning gatekeepers, securing communication, open-core sourcing and filtering shared code. Our work contributes to software engineering research with a rich description of coopetition in OSS ecosystems. Moreover, we also come up with several implications for software firms in pursing a harmony participation in OSS ecosystems.Comment: This is the author's version of the work. Copyright owner's version can be accessed at https://link.springer.com/chapter/10.1007/978-3-319-69191-6_10, Coopetition of software firms in Open source software ecosystems, 8th ICSOB 2017, Essen, Germany (2017

Honey as a complementary medicine

The beneficial effects of honey on human health have long been recognized. Today, many of those positive effects have been studied to elucidate its mode of action. This review briefly summarizes the best studied features of honey, highlighting it as an appealing alternative medicine. In these reports, the health benefits of honey range from antioxidant, immunomodulatory, and anti-inflammatory activity to anticancer action, metabolic and cardiovascular benefits, prebiotic properties, human pathogen control, and antiviral activity. These studies also support that the honey's biological activity is mainly dependent on its floral or geographic origin. In addition, some promising synergies between honey and antibiotics have been found, as well as some antiviral properties that require further investigation. Altogether, these studies show that honey is effectively a nutraceutical foodstuff.info:eu-repo/semantics/publishedVersio

Delivering better outcomes through customer-led project management: the case of the major project BT 21st Century Network in the UK

Traditional approaches of major project management take the strategy of selecting a supplier-led prime/systems integrator. Although this strategy pushes a significant amount of risk to the supplier, project performance may suffer due to lower engagement of the customer in the anticipation of potential issues involving a major project. Thus, this research investigates the implications of the customer, as opposed to a selected external supplier, assuming the role of systems/prime integrator, as a Problem Structuring Method (PSM) to better deal with the soft side and uncertainties of the project. A case study approach is conducted on the major project BT 21st Century Network (BT21CN) to demonstrate that customer-led systems integration projects may provide more balance in the relationship and distribution of risks between supplier and customer, having a positive impact on project performance, accelerating the development of BT’s organisational capabilities, and producing better project outcomes in the long term

Analysing search engine advertising research: Synthesis of two decades of research

TesisLa globalización, los grandes flujos migratorios y la internacionalización de la vida han traído consigo la creación diaria de múltiples vínculos jurídicos de índole internacional, las personas no limitan su actuación a un único estado, por el contrario, crean relaciones que conectan a dos o más ordenamientos jurídicos; ante estas situaciones es necesario adoptar criterios realistas y acoger un derecho que se ajuste a las realidades demográficas, sociales y culturales, bajo la premisa de servir con ello a una mejor administración de justicia. Ninguna regla de derecho cubre íntegramente de manera idónea la variedad de supuestos que suelen presentarse en la realidad internacional, ello se da como consecuencia de los múltiples sistemas jurídicos creados por estado soberanos, esta diversidad legislativa es la razón de ser del Derecho Internacional Privado, el que deberá coordinar los sistemas conflictuales para llegar a soluciones uniformes, justas y equitativas. Todo este nuevo contexto ha conllevo a la división de ideas sobre que norma será la adecuada para que se aplique a los casos de corte internacional privado, siendo considerado por una parte de juristas, como aplicable el derecho interno, basando su decisión en el principio de soberanía de los estados; mientras que otro gran número hace referencia a la aplicación en su totalidad del ordenamiento jurídico extranjero declarado aplicable, llevándonos a entender tanto el derecho interno, como las normas de conflicto, este sostenimiento se da a razón del carácter de indivisibilidad de la norma. La naturaleza propia de los casos internacionales, hace necesario adoptar un método que nos conduzca a soluciones satisfactorias, razonables y justas. El sistema del reenvío ofrece a las partes una mejor administración de justicia, uniformidad de soluciones, siempre respetando las garantías procesales. El reenvío se origina cuando la norma de conflicto de la lex fori (país en el que se juzga el asunto) se remite a un derecho extranjero, el que, en aplicación directa de su derecho internacional privado lo remite al primer estado –reenvío en primer grado- o a un tercer estado –reenvío en segundo grado-. A esta divergencia se le denomina conflicto negativo de leyes, por cuanto ninguna legislación se declarada competente para conocer la litis, ello porque el factor de conexión de cada estado es disímil. La posición internacional en su mayoría, ha decidido adoptar el reenvío en segundo grado y de manera parcial, ya que se considera una figura endeble y su aplicación en grados posteriores o como regla general podría traer como consecuencia un alejamiento de la meta principal del derecho, la que básicamente se traduce en lograr justicia. El hecho que lleva a considerar más factible la aceptación en un segundo, se origina de un razonamiento básico, si bien es cierto el reenvío en primer grado llevara a que el juez aplique su propio derecho – lo que facilitará su labor- respetando en toda su extensión la norma extranjera, no resulta siendo lógico, por cuanto si se admite ya una coordinación de normas entre dos estados, no se puede desconocer la coordinación de las reglas de conflicto que a razón del propio caso se deba dar con un tercer país, cuyas reglas conflictuales admitirán finalmente su competencia. Si partimos de la idea de que a través del reenvío se tratará de dotar a las partes de justicia, el reenvío en segundo grado termina por ser la opción más acorde a esta finalidad, ya que mediante este grado lograremos uniformizar soluciones rápidas, prácticas y favorables. El artículo 2048 del Código Civil Peruano, prohíbe de manera concluyente la aplicación del reenvío, los motivos que llevaron al legislador a adoptar esta postura tan inflexible podrían deberse al temido circulo vicioso, concepto que persigue a dicha figura desde el antiquísimo caso francés Javier Forgo, y que resulto por tornarse el más feroz juicio en contra; los múltiples estados que han acogido esta figura han demostrado que la superación de este también llamado juego de ping pong internacional, es básicamente la aplicación directa del principio de justicia, siendo labor del juez ponerle fin, a través de la coordinación de las normas de conflicto. En consecuencia, el presente trabajo de investigación demostrará la necesidad de acoger en nuestra legislación la figura jurídica internacional del reenvío en primer y segundo grado, la misma que será amparada no como regla general, sino que su aplicación quedará limitada a aquellas materias que merecen un trato más tuitivo, siendo estas, derecho sucesorio y derecho de familia. PALABRAS CLAVES: Reenvío, Lex Fori, Conflicto Negativo de Leyes, Derecho Internacional Privado, Derecho de Familia, Derecho de Sucesiones

An In vitro Analysis of the Effects of Iron Sulfate and Iron Acetate on Streptococcus mutans

Statement of problem: Dental caries is a common infectious disease induced by Streptococcus mutans (S. mutans). Objectives: Due to the high incidence rate of dental caries and iron deficiency in the Iranian population, we have conducted this study to analyze the effects of iron acetate and iron sulfate on controlling the growth of S. mutans. Materials and Methods: In this in vitro study, we evaluated the antibacterial effects of iron sulfate and iron acetate on S. mutans by the disk diffusion method, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC). The results were compared to those for 0.2% chlorhexidine and penicillin as the controls. Results: Iron sulfate had higher MIC and MBC values compared to penicillin and chlorhexidine (P<0.001). Iron acetate MIC and MBC values did not significantly differ with penicillin and chlorhexidine. The iron sulfate inhibition zones at the 25 and 50 µg/mL doses were more than those of iron acetate. Conclusions: Iron sulfate and iron acetate solutions can inhibit the growth of S. mutans. Hence, different compounds that contain iron salts such as toothpastes, mouth washes, and food supplements can be produced to prevent dental caries and iron deficiency

Oral manifestations of asthmatic patients

The effect of asthma on oral health is the subject of debate among dental practitioners. The current study was planned to investigate the oral manifestations of asthmatics compared to healthy subjects. The study group composed of 100 asthmatics and 100 age-matched healthy controls. The caries status based on Decayed/Missing/Filled Teeth (DMFT) criteria and oral lesion were evaluated in all subjects. The mean age of the asthmatics group was 47.5±3.5 years and in the control group it was 43.5±3.0 years. Asthmatics included 45(45%) males and 55(55%) females. There was no statistical difference between caries prevalence in both groups. The most prevalent oral lesions in asthmatics group were geographic tongue 10(10%), fissured tongue 13(13%), chronic atrophic candidiasis13(13%), and in the control group were fissured tongue(11%) and lichenoid reaction(2%). The dental professional must be familiar with all signs and symptoms of this disease in order to offer effective and safe treatmen

The Effect of Two Types of Denture Adhesive on the Satisfaction Parameters of Complete Denture Wearers

Statement of Problem: Patient satisfaction is highly influenced by the retention of the denture. In some instances using denture adhesives may help the patient to achieve this goal. Objectives: The purpose of this study was to evaluate the participants’ ’opinion concerning the effectiveness of two types of denture adhesives having the same composition (Fixative-powder, Protefix-cream). Materials and Methods: Forty healthy patients (25 Males and 15 Fe-males) who visited the Department of Prosthodontics of Shiraz Dentistry School were selected. The oral cavity was examined and patients with oral ulcers, history of allergic reaction, severe xerostomia, red, white and/or red and white lesions were excluded. The subjects were instructed to receive a sequence of treatment protocols. All patients applied Fixative-powder on the dentures for seven days. The Participants were asked to fill a question-naire to include their opinion regarding the strength, biocompatibility, convenience and masticatory ability of the adhesive. On the next seven days, the patients were asked not to use the adhesives and they completed the same questionnaire again. Finally, all participants were asked to apply Protefix-cream on their dentures for a week followed by no cream applica-tion for another 7 days. These patients answered the same questionnaire and data were collected and analyzed using paired-samples t-test and Chi-square test. Result: Denture adhesives significantly improved the overall satisfaction level of the patients (p =0.01). When testing the fixative powder, the satis-faction score of the participants during the first week (powder application) and the 2nd weak (no application) was 19.95±3.76 and 26.2±2.82, respec-tively. The overall satisfaction rate of the patients using the Protefix adhe-sive was 19.35±5.48 in the third week (adhesive application) and 25.85± 4.35 in the fourth week (no application). Conclusions: The study clarified that applying denture adhesives (both types) markedly improved the satisfaction rate in complete denture wear-ers without any complications. Further studies on a larger group is sug-gested to determine which kind of denture adhesive is more effective and if there is any possible side effects that restrict the use of such substances

Applying the submission multiple tier (SMT) matrix to detect impact on developer interest on open source project survivability

© IFIP International Federation for Information Processing 2014. There is a significant relationship between project activity and developer interest on Open Source (OS) projects. Total project activity submission count number can be an indicator for gauging developer interest. The higher the project activity submission of a project is, the larger developer interest in a project. My paper proposed that applying a Submission Multiple Tier (SMT) matrix can detect the impact of developer interest on project activity. Results showed more volume of OS projects with low project activity than high. Activity submission results also showed that developers are more likely to review than correct projects, with the first priority to find and fix bugs. Further research is needed to determine the impact of project activity type on developer motivation to contribute, participate and support OS projects