Miracle-dz/UniFAR-FTUs huggingface dataset:
Deduplication of Dynamic Proof of Storage for Multi-User Environments

Now a days Dynamic Proof of Storage (DeyPoS) could be a helpful crypto graphical primitive that permits a user to survey the integrity of outsourced files and to with efficiency update the files during a cloud server. Though researchers have planned several DeyPoS schemes in single user environments, the matter in multi-user environments has not been investigated sufficiently. A sensible multi-user cloud storage system requirement the secure client-side cross-user deduplication technique, that permits a user to skip the uploading method and obtain the possession of the files now, once different house owners of identical files have uploaded them to the cloud server. To the best of our data, none of the fundamental DeyPoS will support this system. during this paper, we tend to introduce the construct of deduplicatable dynamic proof of storage Associate in Nursing d propose an economical creation referred to as DeyPoS, to realize dynamic DeyPoS and secure cross-user deduplication, at the same time. Considering the challenges of structure diversity and personal tag generation, we tend to exploit a novel tool referred to as Homo morphic documented Tree (HAT). We tend to prove the protection of our construction, and therefore the theoretical analysis and experimental results show that our construction is economical in observe.
An Assessment of the Application of Earnings Management Objectives and Instruments in Financial Reporting – Evidence of Survey Research Results

Abstract The study contains an overview of earnings management tools of reporting entities and capital groups in Poland. Relations between the phenomenon of earnings management and financial reporting policy have been analysed. A research problem related to the significance and application of particular earnings management tools as perceived by practitioners (accountants, executive board members, specialists) has been discussed. Selected tools of earnings management, usually linked with operations, are perceived to be used more intensively. The conducted analysis shows that in the opinion of the surveyed respondents the most effective instrument influencing the desired level of results presented in a financial statement is carrying out transactions under conditions which ensure the achievement of a reported goal. This applies also to capital groups, in which transactions effected between group units were indicated as the ones used to the greatest extent.
Searching for Momentum in the NFL

We examine the question of whether or not momentum exists in an NFL football game. The concept of momentum is often cited by coaches, players, commentators and fans as a major factor in determining the outcome of the game and, consequently, in-game decision making. To examine the existence of momentum, we analyze particular game situations tied to what we consider to be “momentum-changing plays” (MCPs). These MCPs include fourth down conversions/stops, turnovers and scores allowed. We hypothesize that evidence of positive (negative) momentum would be characterized by increases (decreases) in yards gained, higher (lower) probability of converting a first down and greater (lesser) likelihood of scoring after a positive (negative) MCP. Our data set includes all plays from the 2002 to 2007 NFL seasons. We limit our analysis to game situations where the outcome of the game is still in doubt by removing plays that occur when a team is facing an insurmountable score differential. We use a pairwise matching comparison where we control for the game situations of home/away team, field position, time of game and score differential. We find little evidence for the existence of momentum in these events. Our results are in line with previous papers that find little empirical evidence of momentum in sports. While our findings cannot conclusively disprove the existence of momentum in the NFL, they further support the argument that momentum should not be a guiding factor for in-game decision making.
Data, Statistics, and Controversy: Making Science Research Data Intelligible

Making published, scientific research data publicly available can benefit scientists and policy makers only if there is sufficient information for these data to be intelligible. Thus the necessary meta-data go beyond the scientific, technological detail and extend to the statistical approach and methodologies applied to these data. The statistical principles that give integrity to researchers’ analyses and interpretations of their data require documentation. This is true when the intent is to verify or validate the published research findings; it is equally true when the intent is to utilize the scientific data in conjunction with other data or new experimental data to explore complex questions; and it is profoundly important when the scientific results and interpretations are taken outside the world of science to establish a basis for policy, for legal precedent or for decisionmaking. When research draws on already public data bases, e.g., a large federal statistical data base or a large scientific data base, selection of data for analysis, whether by selection (subsampling) or by aggregating, is specific to that research so that this (statistical) methodology is a crucial part of the meta-data. Examples illustrate the role of statistical meta-data in the use and reuse of these public datasets and the impact on public policy and precedent.
Aid Transfers, Supply Shocks, Dutch Disease and the Informal Sector

Summary I present an integral approach for the analysis of supply shocks, financial transfers and combinations thereof in a model of monopolistic competition. Introducing an informal sector reveals an asymmetry between „spending“ the value of the transfer by the recipient government and „absorption“, i. e. selling the foreign exchange by the recipient central bank: With flexible prices, the increased demand for formal sector domestic goods does not only crowd out exports, but also informal sector products. The real appreciation after selling foreign exchange crowds out exports and cheapens nontradables. With wage and price rigidities in the formal sectors, the adjustment pressure on the informal sector is increased.
Agreement disagreements

This is a commentary on “On the linguistic status of agreement in sign languages” (this volume), by Lillo-Martin and Meier (L&M). This article focuses on the directionality of pronouns and what Liddell (2000a, 2003) calls indicating verbs (L&M refer to them as “directional” or “agreement” verbs). The directionality of these signs clearly distinguishes them from vocally produced words since vocally produced words exhibit nothing resembling directionality. This fact suggests that one should leave open the possibility that the directionality of these signs may not be analyzable using grammatical mechanisms that have their foundation in spoken languages only.
The heterogeneity of internationalisation in knowledge intensive business services

Abstract The general process of internationalisation of knowledge intensive business services (KIBS) is widely recognised, but knowledge of the forms, motivations and spatial patterns of this type of internationalisation remains limited. This article addresses this gap by comparing the sectors of legal services and engineering consulting, which differ in their specific service characteristics. Based on an analysis of the office networks of international firms, we attempt to identify typical patterns of international expansion and examine the heterogeneity among the firms in both sectors. We reveal that the specific service characteristics, especially in terms of knowledge and client relationship, influence significantly the spatial outcome of international expansion. Also the country of origin with its particular institutional environment may affect the opportunities of, and targets for, expansion.
B-Tree Algorithm Complexity Analysis to Evaluate the Feasibility of its Application in the University Course Timetabling Problem

Abstract This paper presents a comparative analysis of complexity between the B-TREE and the Binary Search Algorithms, both theoretically and experimentally, to evaluate their efficiency in finding overlap of classes for students and teachers in the University Course Timetabling Problem (UCTP). According to the theory, B-TREE Search complexity is lower than Binary Search. The performed experimental tests showed the B-TREE Search Algorithm is more efficient than Binary Search, but only using a dataset larger than 75 students per classroom.
An Analysis of the European Debt Crisis: Its Etiology, Current Status, and Possible Future Direction

Abstract The current European Debt Crisis has its roots in the long-term indebtedness of certain European countries that share a common currency and have no individual control over the setting of suitable interest rates for their economies. Competitive devaluations are thus not possible on a national basis, but government debt is still left up to individual nation states to control and repay. In 2008, a worldwide recession started and industrial output decreased by 20%, while developed and emerging economies’ output fell by around 24% and 14%, respectively (Blundell-Wignall, 2012). This paper will first describe the pre-existing conditions, such as the requirements for admission to the EU and the background to the current crisis; secondly it will explore the impact of the credit crunch, and thirdly, analyse problems in Greece, Portugal, Spain, and Italy and the wider impact of Eurozone instability. It will then explain the types of sovereign bonds in existence and their valuation and further examine the action the EU has taken. Conclusions will be drawn as to three possible developmental scenarios, including the implications of a Eurobond, and recommendations will finally be made.
Contemporary Approach to Education in Organizations

Abstract In order to successfully meet the requirements of the knowledge-based economy, organizations turn more and more to the knowledge they possess, its application at the right time and in the right way, and all that with the aim to improve their business processes, achieve efficiency and quality in business and customer satisfaction. The topic of this research are organizations that strive for change and that rely on their knowledge and skills in order to become competitive, fast, and innovative, to create efficient knowledge to maximize their success, respond to the challenges of the knowledge-based economy and transform into a knowledge- based organization. Rezime U cilju uspešnog suocavanja sa izazovima koje namece ekonomija znanja savremene organizacije se sve više okrecu znanju koje poseduju, njegovoj adekvatnoj primeni, a sa željom da unaprede svoje poslovne procese, postignu što vecu efikasnost i kvalitet u poslovanju, kao i da izau u susret svojim klijentima. Predmet ovog rada su organizacije koje teže promenama oslanjajuci se na sopstvena znanja i veštine kako bi postale konkurentne, brze i inovativne. One nastoje da razviju delotvorno znanje pomocu kojeg ce uvecati sopstveni uspeh i uspešno odgovoriti na izazove koje postavlja ekonomija znanja.
Bestimmungsgründe der Wettbewerbsposition der Tourismusdestination Österreich – Ein modellorientierter Ansatz

The central approaches for public tourism policy, with the main goal of improving the competitive position of a country or a destination, largely correspond to the determinants of competitiveness. Important cornerstones for the formulation of possible key strategies concerning tourism policy are actions leading to a reduction in the dependency on seasonality, a continued internationalization process as well as an orientation towards quality, productivity and innovation (including research and education). The increased dynamic in the destination-building process and the improvement of the situation in education and research have an additional supporting effect.
Physiological Responses of Two Wheat Cultivars to Soil Drought

Young plants of the two wheat cultivars Katya and Prelom, differing in their reaction to drought in the fi eld, were grown in soil in pots, and their water status was assessed as well as the intensity of gas exchange, chlorophyll fl uorescence, and accumulation of compatible solutes and hydrogen peroxide after 7 days of dehydration. It was established that cv. Katya displayed markedly better tolerance to soil drying in comparison with cv. Prelom. This was partly due to the more effective control of water balance, activity of the photosynthetic apparatus, and metabolic activity of leaves under stress. Consequently, lower amounts of hydrogen peroxide were accumulated and a lower membrane injury index was determined
Auswirkungen der Globalisierung auf die Struktur der Besteuerung

Abstract This paper reviews theoretical predictions on the likely effect of globalization on tax revenues and tax structures in developed countries. The predictions are then confronted with data from OECD countries. The evidence suggests that, in contrast to wide-held views, globalization only marginally affects tax revenues and structures. Most importantly, while it is often assumed that globalization would undermine national governments’ ability to tax mobile businesses, corporate tax revenue has increased over time. Overall, the tax systems in developed countries are highly stable in terms of both revenues and tax structure.
Interaction and Purpose in Highly Entrepreneurial Communities

In an attempt to understand more about community-level variation in entrepreneurship, this research article focuses on two possible sources of variation within the local society: the amount of interaction among entrepreneurs, and between entrepreneurs and local institutions; and the purposive nature of these interactions. Theories about social interaction, such as Granovetter’s (1973) theory of weak ties and Burt’s (1995) theory of structural holes, are used to understand how large, diverse networks may impact not only information exchange, but information and skills necessary for entrepreneurship. Also, Wilkinson’s (1991) interactional field theory is presented as a way to understand how not only network ties, but the content that flows over those ties in the form of a common community purpose, can equally structure behavior around entrepreneurship. Hypotheses are generated from these social theories and tested empirically using a six-community case study involving both entrepreneurs and institutional actors/representatives in both high- and low-entrepreneurship communities. Interaction and purpose are examined to understand how these may differ across communities with different levels of entrepreneurship. The implications of the findings for entrepreneurship development at the community level is discussed, with a focus on how entrepreneurship can be supported more effectively, quickly, and inexpensively using the community's interactive capacity.
The Liftoff of Consumer Benefits from the Broadband Revolution

This paper uses both a discrete choice demand model and a direct survey method to derive robust measures of the contribution of home broadband to consumer welfare during the early years of broadband adoption by U.S. households. We estimate a demand system that distinguishes between cable, DSL, satellite and fiber broadband versus dial-up Internet services. We allow household preferences for Internet services to vary depending on the share of rural households in each geographic market, and find a significant impact of rural geography on demand. The estimated own-price elasticity of demand for broadband declines over time from -1.5 in 2005 to -0.7 in 2008. Consumer surplus from Internet is found to concentrate in broadband services, with the net consumer benefits from home broadband in 2008 on the order of $32 billion per year.
Effects of a daytime nap on the recognition of neutral and emotional memories

Abstract Background: Memory can be facilitated by the emotional strength of encoded information. Offline consolidation during sleep (post-learning sleep, even as little as a nap,) also modulates declarative memory processing. Previous studies have investigated the influence of sleep, especially rapid eye movement (REM) sleep, on emotional memory facilitation in humans. However, the interaction between emotional valence asymmetry and nap-dependent memory consolidation is poorly understood. Objective: To investigate the effects of post-learning nap on the recognition of neutral and emotional memories. Method: Ten healthy male participants completed a study session involving 240 emotional (negative and positive stimuli with different arousal magnitudes) and neutral pictures of people, animals, objects, and landscapes. Participants were then immediately tested on the visual recognition performance, in which they need to make recognition judgments on a subset of previously seen (“old”) pictures and intermixed unseen (“new”) pictures containing similar emotional and semantic contents. Three hours after this initial baseline test, one-half of the participants obtained a 90-minute nap opportunity, recorded with electroencephalography (EEG), whereas the others remained awake. Participants were again tested on the remaining “old” and “new” pictures at 6 hours after learning session. Results: The results revealed a beneficial effect of delayed post-learning nap on the recognition of neutral declarative memory. The extent of neutral memory facilitation was negatively correlated with the amount of stages-2 NREM. Unlike previous studies, the recognition performance for negative emotional items with high arousal condition in the Nap group deteriorated across an offline time rich in stage-2 NREM sleep. However, both groups showed similar decrease in recognition accuracy for positive stimuli. Conclusion: Our findings suggest that declarative memories containing distinct emotional valence and arousal are consolidated differentially during wakefulness and sleep. Under certain conditions, a daytime nap rich in stage-2 NREM sleep may play an important role on these performance differences.
Do Investor Preferences Drive Corporate Dividend Policy?

Abstract This research paper aims at assessing whether managers adapt their dividend policies to the changing preferences of investors, as predicted by the catering theory of dividends. To answer this question, we used an modified approach based on the method proposed by Baker and Wurgler [2004a] in their studies on dividend catering. We noted a systematic decline in percentage of companies that paid out dividends in a sample of American publicly-traded companies, excluding companies of low capitalization and low profitability. Next, we observed a parallel declining tendency in dividend premiums in our sample. The decrease in the readiness to pay out dividends among companies on the American market can be linked to the fact that investors have assigned less weight to dividends over the years, and so in turn they were less willing to reward dividend-paying companies with higher valuations. Periodic fluctuations in investor mood with regard to dividend-paying companies, and the resulting changes in their relative valuation, influence the propensity of managers to pay out dividends. We showed a statistically significant relationship between changes in dividend premiums in one year, and the proportion of companies that paid out dividends in the following year. Additionally, it looks like companies try to compensate shareholders by paying out dividends in years of worse performing market and are less likely to distribute their earnings when shareholders gain on rising stock price. We found a negative correlation between the change in proportion of companies paying out dividends and changes in the S&P500 index. However, this does not seem to reflect investor preferences and taste for dividends. We found no statistically significant correlations between the change of the dividend premium and changes in the S&P500 index and, surprisingly, we observed relatively worse valuation of dividend-paying frms in years of market downturn. In terms of originality, our work contributes to the ongoing dividend puzzle discussion in a number of ways. First, we use a sample of American companies after excluding small capitalization stocks. Second, we assume a time lag between a shift in investor preferences and a change in corporate payout policy. Finally, our studies also account for the impact of general market conditions on dividend decisions.
Contribution of Concrete-Polymer Composites to Sustainable Construction and Conservation Procedures

Polymer modification of concrete generates an interpenetrating network of polymer and cement hydrates in which the aggregates are embedded. The synergetic action of polymers and cement concrete offers great opportunities for performance improvement and for a wide range of new and innovative properties and applications. Durability is increased to a great extent. Polymers can largely reduce impact of construction industry on environment. They are an important factor in decreasing the carbon footprint of cement production, whilst enabling construction industry to meet increasing building demands of the growing world population. Renovation and restoration figure largely in the concept of sustainable construction development. Polymer-modified cement mortars have an excellent adhesion strength and durability and are therefore widely used as repair materials, enabling conservation of damaged or obsolete structures, and thus limiting mass, energy and pollutant flows.
Kundenzufriedenheit, Dienstleistungsqualität und die Bedeutung einzelner Leistungsparameter: Das Beispiel des Lindner Congress Hotels Cottbus

In this paper, the customer satisfaction and the service quality for the evaluation of a hotel ser-vice offer (at the example of the Lindner Congress Hotel Cottbus) will be analysed. On the one hand, the established SERVQUAL-approach is used and adapted to hotel specific problems. On the other hand, the relevance of individual performance parameters is measured and analysed separately by using their indirect importance. The results verify the general usability of the SERVQUAL-approach and the indirect performance parameters measurement of the as well as the customer satisfaction with respect to the performance parameters of the investigated 4-Star-Hotel.
Jitter analysis of high speed sampling systems

1.Introductlon Recent LSI technology advances have resulted in major improvements in electronics. For A-to-D converters. particularly. not only a very high precision over 90 dB [I] but also an ultra high speed of 2 GHz for 6bit [2] have already been achieved. Accuracy and speed limitations of the converters are obviously important. Jitter problems are thought to be the principle limiting factors on the accuracy and speed of the converter. In this paper, our research penaining to these problems will be presented. First, a jitter generation model far a practical sampling system. including signal and clock generator jitter. will be proposed. Based on this model. a precision jitter measurement method is shown. which also enables each jitter component to be separated. Finally. accuracy and speed limitations of the converter will be discussed. and it will also be shown that effective band-width compro-ation between jitter reduction and operating speed are important for more advanced converter design.