Cost-based Management and Decision Making in Greek Luxury Hotels

The use of cost accounting systems by hotel businesses is improving the quality of decision making. The development of theories on costing, combined with advances in information technology, has improved the theoretical capabilities of such systems. However, two questions remain largely unanswered: a) whether these theories lead to tangible improvements; and b) what are the variables that drive the success of cost accounting systems. Our research shows that hotel managers need to be convinced about the use and performance benefits of such systems in the decision making process.Cost Accounting, Decision Making, Luxury Hotels, Greece

The IAS 8 analysis and critical thesis of the IAS 8

In this paper the concept and the solutions suggested by IAS 8 are analysed extensively by using accounting examples. These solutions are indicated in order to achieve a equable treatment of the issues that this standard introduces in accounting. In the first part the definitions of the Standard are presented and the meanings of net profit or loss are clarified. Net profit or loss comes either from enterprise’s ordinary activities or from activities of extraordinary nature the result of whom forms extraordinary results. Afterwards, the accounting errors are mentioned and the way to correct them is indicated using recent accounting examples. Moreover, in this paper are mentioned the notifications that must be made in order to ensure the reliability of the economic conditions. Finally, the accounting treatment of the changes in accounting policies is made clear. These changes are described explicitly by using examples of economic conditions.peer-reviewe

Internet financial reporting quality and corporate characteristics : the case of construction companies listed in Greek and Cypriot stock exchange

This study examines the role of the Internet in the financial reporting practices of publicly traded Greek and Cypriot construction companies. Its key contribution is the development of a relevant index that is assessed against key business characteristics: profitability, leverage, audit firm size, firm size, ownership dispersion, time length of operations, and market to book value. The association between the proposed index and firm characteristics was examined with the use of multiple regression analysis. Our findings indicate, among others, that Internet-related financial disclosure is significantly associated with profitability, leverage, firm age and ownership dispersion.peer-reviewe

The connection between the peaks in velocity dispersion and star-forming clumps of turbulent galaxies

We present Keck/OSIRIS adaptive optics observations with 150-400 pc spatial sampling of 7 turbulent, clumpy disc galaxies from the DYNAMO sample ($0.07<z<0.2$). DYNAMO galaxies have previously been shown to be well matched in properties to main sequence galaxies at $z\sim1.5$. Integral field spectroscopy observations using adaptive optics are subject to a number of systematics including a variable PSF and spatial sampling, which we account for in our analysis. We present gas velocity dispersion maps corrected for these effects, and confirm that DYNAMO galaxies do have high gas velocity dispersion ($\sigma=40-80$\kms), even at high spatial sampling. We find statistically significant structure in 6 out of 7 galaxies. The most common distance between the peaks in velocity dispersion and emission line peaks is $\sim0.5$~kpc, we note this is very similar to the average size of a clump measured with HST H$\alpha$ maps. This could suggest that the peaks in velocity dispersion in clumpy galaxies likely arise due to some interaction between the clump and the surrounding ISM of the galaxy, though our observations cannot distinguish between outflows, inflows or velocity shear. Observations covering a wider area of the galaxies will be needed to confirm this result.Comment: Accepted for publication in MNRA

Cost-based Management and Decision Making in Greek Luxury Hotels

The use of cost accounting systems by hotel businesses is improving the quality of decision making. The development of theories on costing, combined with advances in information technology, has improved the theoretical capabilities of such systems. However, two questions remain largely unanswered: a) whether these theories lead to tangible improvements; and b) what are the variables that drive the success of cost accounting systems. Our research shows that hotel managers need to be convinced about the use and performance benefits of such systems in the decision making process

Connecting Clump Sizes in Turbulent Disk Galaxies to Instability Theory

In this letter we study the mean sizes of Halpha clumps in turbulent disk galaxies relative to kinematics, gas fractions, and Toomre Q. We use 100~pc resolution HST images, IFU kinematics, and gas fractions of a sample of rare, nearby turbulent disks with properties closely matched to z~1.5-2 main-sequence galaxies (the DYNAMO sample). We find linear correlations of normalized mean clump sizes with both the gas fraction and the velocity dispersion-to-rotation velocity ratio of the host galaxy. We show that these correlations are consistent with predictions derived from a model of instabilities in a self-gravitating disk (the so-called "violent disk instability model"). We also observe, using a two-fluid model for Q, a correlation between the size of clumps and self-gravity driven unstable regions. These results are most consistent with the hypothesis that massive star forming clumps in turbulent disks are the result of instabilities in self-gravitating gas-rich disks, and therefore provide a direct connection between resolved clump sizes and this in situ mechanism.Comment: Accepted to Apj Letter

An ontology-driven multisensorial platform to enable unobtrusive human monitoring and independent living

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