Innovative Business Models in Tourism Industry

[ES] This study examines the business models of four emblematic Digital Disruptive Intermediaries (DDIs), Airbnb, TripAdvisor, Expedia and Booking.com. The sources are constituted mainly by surveys, articles and expert opinions which are the main argumentation sources. The best practices for ideal business models in tourism industry through the analysis of the DDIs are the findings of the study. The main functions of the DDIs are Cataloguing, Reordering or filtering, Ranking and Recommending, Bundling, Sharing, Intent Casting, Channelling Actors, Pricing and Matching Actors. The originality of the paper derives from the SWOT analysis of the business models of the four well known DDIs. There is no previous analysis which evaluates the business models and discloses the main functions they perform.Valsamidis, S.; Maditinos, D.; Mandilas, A. (2020). Innovative Business Models in Tourism Industry. Editorial Universitat Politècnica de València. 279-290. https://doi.org/10.4995/INN2019.2019.10146OCS27929

Greek Accounting Standards and Debt Covenants. Changes in Contracting

Businesses, organizations, and even more governments are strongly related with information provided by accounting in order for CEO’s or managers and even more members of parliament to make decisions. Financial statements which contain multiple criteria, and how managers or shareholders treat them influence the decisionmaking of organizations and all types of businesses, public and private. Auditing financial statements ensures their reliability and validity. Both lenders and borrowers must choose the right set of debt covenants to minimize risk from their respective perspectives. It is critical to use and select debt covenants in relation to the side of interest. For instance, in past decades, financial covenants based on balance sheet variables are more likely in debt contracting. Nowadays, the trend of choosing a batch of covenants in contracting changed. In this paper, we investigate the relationship between changing the Greek direction and accounting standard setting. Greek accounting standards are moving away from “old-fashioned” book- and record-keeping standards. This was a great change that took place in 2015, and since then, new notions of accounting practice have been introduced. Fair value, net realizable value, present value, cash equivalents, and useful economic life are some concepts that were first used in accounting the process in Greek economy. Changes were massive and everyone involved with accounting, financial statements, and the way they were introduced should change the way they are analyzed. We hypothesized that this significant shift in accounting standard setting reduces the value of analyzing balance sheets in debt contracting. Since 2015, balance sheet-based covenants started to vanish, especially from private debt contracting. We tried to correlate borrowers and their likelihood in using balance sheet-based covenants. The correlation between the change in accounting standard setting and the concurrent change in trend of choosing accounting-based covenants in debt contracting is being investigated. The results are consistent with our hypothesis. A mechanism that separates multiple covenants and correlates them with significant debt characteristics will be an innovative tool for managers and credit institutions, as well as a more definite way of auditing, for instance, by digitalizing it, which will be a great tool for everyone involved in businesses. Keywords: accounting-based covenants, debt contracting, Greek accounting standard

Indirect Auditing Methods for Individuals Subject to Income Tax

This paper provides a tax audit guide, gathering all indirect audit methods applied both in Greece and abroad. It also identifies the size of hidden tax base and of the amounts that could be revealed and taxed. The aim of the current study is to present the indirect audit methods, as this is the imperative future of tax audits. Indirect methods are applied mainly to individuals, as according to experience, money that has escaped taxation, always ends up in one or more individuals. There are references in the ways in which this fact can be discovered during a tax audit, how to be determined and how understated income will be converted to taxable matter. Problems, opportunities, legislative framework and the overall impact of indirect audit methods are being analyzed in order to reduce tax evasion, in combination with an empirical research conducted as part of this study. A questionnaire that is consisting of 31 questions was completed by 102 tax-employees of the region of Macedonia and Thrace between May 2017 and September 2017. A factor analysis with the method of principal components and with varimax rotation was applied. The relationship among a number of items by grouping them in factors was investigated. Thus, four factors based on 21 questions of our questionnaire, are used for factor analysis. The Kaiser-Meyer-Olkin measure of sampling adequacy (KMO) value and chi-square value for Bartlett’s test of sphericity were checked whether data are suitable to continue the process of factor analysis. All statistical analysis is conducted with the application of the SPSS version 22 software package. Keywords: Indirect audit, methods, tax audit, income tax, tax evasion

The burden of disease in Greece, health loss, risk factors, and health financing, 2000–16:an analysis of the Global Burden of Disease Study 2016

Background: Following the economic crisis in Greece in 2010, the country's ongoing austerity measures include a substantial contraction of health-care expenditure, with reports of subsequent negative health consequences. A comprehensive evaluation of mortality and morbidity is required to understand the current challenges of public health in Greece. Methods: We used the results of the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2016 to describe the patterns of death and disability among those living in Greece from 2000 to 2010 (pre-austerity) and 2010 to 2016 (post-austerity), and compared trends in health outcomes and health expenditure to those in Cyprus and western Europe. We estimated all-cause mortality from vital registration data, and we calculated cause-specific deaths and years of life lost. Age-standardised mortality rates were compared using the annualised rate of change (ARC). Mortality risk factors were assessed using a comparative risk assessment framework for 84 risk factors and clusters to calculative summary exposure values and population attributable fraction statistics. We assessed the association between trends in total, government, out-of-pocket, and prepaid public health expenditure and all-cause mortality with a segmented correlation analysis

Sex difference and intra-operative tidal volume: Insights from the LAS VEGAS study

BACKGROUND: One key element of lung-protective ventilation is the use of a low tidal volume (VT). A sex difference in use of low tidal volume ventilation (LTVV) has been described in critically ill ICU patients.OBJECTIVES: The aim of this study was to determine whether a sex difference in use of LTVV also exists in operating room patients, and if present what factors drive this difference.DESIGN, PATIENTS AND SETTING: This is a posthoc analysis of LAS VEGAS, a 1-week worldwide observational study in adults requiring intra-operative ventilation during general anaesthesia for surgery in 146 hospitals in 29 countries.MAIN OUTCOME MEASURES: Women and men were compared with respect to use of LTVV, defined as VT of 8 ml kg-1 or less predicted bodyweight (PBW). A VT was deemed 'default' if the set VT was a round number. A mediation analysis assessed which factors may explain the sex difference in use of LTVV during intra-operative ventilation.RESULTS: This analysis includes 9864 patients, of whom 5425 (55%) were women. A default VT was often set, both in women and men; mode VT was 500 ml. Median [IQR] VT was higher in women than in men (8.6 [7.7 to 9.6] vs. 7.6 [6.8 to 8.4] ml kg-1 PBW, P < 0.001). Compared with men, women were twice as likely not to receive LTVV [68.8 vs. 36.0%; relative risk ratio 2.1 (95% CI 1.9 to 2.1), P < 0.001]. In the mediation analysis, patients' height and actual body weight (ABW) explained 81 and 18% of the sex difference in use of LTVV, respectively; it was not explained by the use of a default VT.CONCLUSION: In this worldwide cohort of patients receiving intra-operative ventilation during general anaesthesia for surgery, women received a higher VT than men during intra-operative ventilation. The risk for a female not to receive LTVV during surgery was double that of males. Height and ABW were the two mediators of the sex difference in use of LTVV.TRIAL REGISTRATION: The study was registered at Clinicaltrials.gov, NCT01601223

Unpublished Mediterranean and Black Sea records of marine alien, cryptogenic, and neonative species

To enrich spatio-temporal information on the distribution of alien, cryptogenic, and neonative species in the Mediterranean and the Black Sea, a collective effort by 173 marine scientists was made to provide unpublished records and make them open access to the scientific community. Through this effort, we collected and harmonized a dataset of 12,649 records. It includes 247 taxa, of which 217 are Animalia, 25 Plantae and 5 Chromista, from 23 countries surrounding the Mediterranean and the Black Sea. Chordata was the most abundant taxonomic group, followed by Arthropoda, Mollusca, and Annelida. In terms of species records, Siganus luridus, Siganus rivulatus, Saurida lessepsianus, Pterois miles, Upeneus moluccensis, Charybdis (Archias) longicollis, and Caulerpa cylindracea were the most numerous. The temporal distribution of the records ranges from 1973 to 2022, with 44% of the records in 2020–2021. Lethrinus borbonicus is reported for the first time in the Mediterranean Sea, while Pomatoschistus quagga, Caulerpa cylindracea, Grateloupia turuturu, and Misophria pallida are first records for the Black Sea; Kapraunia schneideri is recorded for the second time in the Mediterranean and for the first time in Israel; Prionospio depauperata and Pseudonereis anomala are reported for the first time from the Sea of Marmara. Many first country records are also included, namely: Amathia verticillata (Montenegro), Ampithoe valida (Italy), Antithamnion amphigeneum (Greece), Clavelina oblonga (Tunisia and Slovenia), Dendostrea cf. folium (Syria), Epinephelus fasciatus (Tunisia), Ganonema farinosum (Montenegro), Macrorhynchia philippina (Tunisia), Marenzelleria neglecta (Romania), Paratapes textilis (Tunisia), and Botrylloides diegensis (Tunisia).peer-reviewe

Colloid Preload versus Crystalloid Co-Load in the Setting of Norepinephrine Infusion during Cesarean Section: Time and Type of Administered Fluids Do Not Matter

Background and Goal of Study: Spinal anesthesia for cesarean section is frequently associated with a high incidence of hypotension, which may bring about untoward effects for both the mother and fetus. Recently, norepinephrine has emerged as a promising alternative in maintaining blood pressure in the obstetric setting. Fluid administration is another technique still widely used to prevent maternal hypotension. The optimal fluid strategy to prevent maternal hypotension has not been elucidated yet. It has been recently suggested that the main strategy in the prevention and management of hypotension should be the combination of vasoconstrictive medications and fluid administration. The aim of this randomized study was to compare the incidence of maternal hypotension in parturients receiving either colloid preload or crystalloid co-load in the setting of prophylactic norepinephrine infusion during elective cesarean section under combined spinal–epidural anesthesia. Materials and Methods: After ethics committee approval, 102 parturients with full-term singleton pregnancies were randomly allocated to either 6% hydroxyethyl starch 130/0.4 5 mL/kg before the onset of spinal anesthesia (colloid preload group) or Ringer’s lactate solution 10 mL/kg concurrent with the subarachnoid injection (crystalloid co-load group). In both groups, norepinephrine 4 μg/min starting simultaneously with the administration of the subarachnoid solution was also administered. The primary outcome of the study was the incidence of maternal hypotension, defined as systolic arterial pressure (SAP) Results: Data analysis was performed on 100 parturients: 51 in the colloid preload group and 49 in the crystalloid co-load group. No significant differences were demonstrated between the colloid preload group and the crystalloid co-load group in the incidence of hypotension (13.7% vs. 16.3%, p = 0.933) or the incidence of severe hypotension (0% vs. 4%, p = 0.238). The median (range) ephedrine dose was 0 (0–15) mg in the colloid preload group and 0 (0–10) mg in the crystalloid co-load group (p = 0.807). The incidence of bradycardia, reactive hypertension, requirement for modification of vasopressor infusion, time to the first occurrence of hypotension, and maternal hemodynamics did not differ between the two groups. There were no significant differences in other maternal side effects or neonatal outcomes between groups. Conclusions: The incidence of hypotension with a norepinephrine preventive infusion is low and comparable with both colloid preload and crystalloid co-load. Both fluid-loading techniques are appropriate in women undergoing cesarean delivery. It appears that the optimal regimen for prevention of maternal hypotension is a combined strategy of a prophylactic vasopressor such as norepinephrine and fluids

Indirect Auditing Methods for Individuals Subject to Income Tax

This paper provides a tax audit guide, gathering all indirect audit methods applied both in Greece and abroad. It also identifies the size of hidden tax base and of the amounts that could be revealed and taxed. The aim of the current study is to present the indirect audit methods, as this is the imperative future of tax audits. Indirect methods are applied mainly to individuals, as according to experience, money that has escaped taxation, always ends up in one or more individuals. There are references in the ways in which this fact can be discovered during a tax audit, how to be determined and how understated income will be converted to taxable matter. Problems, opportunities, legislative framework and the overall impact of indirect audit methods are being analyzed in order to reduce tax evasion, in combination with an empirical research conducted as part of this study. A questionnaire that is consisting of 31 questions was completed by 102 tax-employees of the region of Macedonia and Thrace between May 2017 and September 2017. A factor analysis with the method of principal components and with varimax rotation was applied. The relationship among a number of items by grouping them in factors was investigated. Thus, four factors based on 21 questions of our questionnaire, are used for factor analysis. The Kaiser-Meyer-Olkin measure of sampling adequacy (KMO) value and chi-square value for Bartlett's test of sphericity were checked whether data are suitable to continue the process of factor analysis. All statistical analysis is conducted with the application of the SPSS version 22 software package. Keywords: Indirect audit, methods, tax audit, income tax, tax evasion

Cancer pain ... who cares? : International and national patterns of evidence-based global guide-lines recommendations for physicians on the Web (2011 vs. 2018)

Purpose: Although pain is a common event during treatment of cancer, its assessment and management remains suboptimal in everyday clinical practice at global level. Methods: Considering both the important role of Internet in daily life and that clinical guidelines are important for translating evidence in clinical practice, we performed a prospective study to scrutinize the magnitude of updated evidence-based cancer-pain guideline recommendation for physicians on the web. Changes over-time at a global level were scrutinized at two time points: 2011 for baseline and 2018 at first follow-up. Both anesthesiology and oncology societies were analyzed. Results: In 2011 we scrutinized 181,00 WebPages and 370 eligible societies were identified; 364 of these were eligible for analyses both in 2011 and 2018. The magnitude of cancer pain updated and evidence-based guideline recommendations on the web for health care providers was extremely low at global level and at any time point considered 1.1% (4/364) in 2011 and 4.7% (17364) in 2018. Continental and intercontinental patterns, National's highest developmental index, oncology tradition and economic-geographic areas were not found to influence cancer pain web-guideline provision. In 2018, pain & supportive care societies provided the highest rate of updated evidence-based cancer-pain guidelines for clinicians. Only 3/25 medical oncology societies and 1/34 radiation oncology societies, provided own or e-link (to other societies) evidence-based guidelines in their websites. Conclusions: Major medical oncology and radiation oncology societies - at global level - fail to produce updated cancer pain recommendations for their physicians, with most of these providing no or inconsistent or outdated guidelines