The pervasiveness of Web Services, compounded with seamless interoperability characteristics, introduces security concerns that are to be carefully considered with the envisioned internet architecture. In this paper, we propose a comprehensive study on Web Service vulnerabilities. We consider not only well known Web-based vulnerabilities such as SQL injection, session replay etc, but we also an...

Allosteric regulation involves conformational transitions or fluctuations between a few closely related states, caused by the binding of effector molecules. We introduce a quantity called binding leverage that measures the ability of a binding site to couple to the intrinsic motions of a protein. We use Monte Carlo simulations to generate potential binding sites and either normal modes or pairs...

The EGAN software is a functional implementation of a simple yet powerful paradigm for exploration of large empirical data sets downstream from computational analysis. By focusing on systems-level analysis via enrichment statistics, EGAN enables a human domain expert to transform high-throughput analysis results into hypergraph visualizations: concept maps that leverage the expert’s semantic un...

The study is about investigation of determinants dividend payout ratio commercial banks in Ethiopia over the period 2010-2018. Nine years Panel data was obtained from audited financial statements 8 selected Ethiopia. used six independent variables such as leverage, profitability, age firm, corporate tax rate, operating cash and extent shares distributed one dependent variable which ratio. Both ...

We measure the impact of increased health insurer competition on negotiated hospital prices using detailed 2004 California claims data. We develop a theoretical bargaining model to motivate our empirical analysis, and use the competitiveness of Kaiser Permanente, a large vertically integrated insurer, in a hospital’s market as a measure of insurer competition. We find that increasing competitio...

Wealth distribution has always been an important issue in our economic and social life, since it affects the harmony and stabilization of the society. Under the background of widely used financial tools to raise leverage these years, we studied the leverage effect on wealth distribution of a population in a controllable laboratory market in which we have conducted several human experiments, and...

Bounded Max-Sum is a message-passing algorithm for solving Distributed Constraint Optimization Problems able to compute solutions with a guaranteed approximation ratio. Although its approximate solutions were empirically proved to be within a small percentage of the optimal solution on low and moderately dense problems, in this paper we show that its theoretical approximation ratio is overestim...

Financial distress is a state of financial difficulty faced by company before bankruptcy or liquidation. This study aims to obtain empirical evidence and analyze the effect ratios on with firm size as moderating variable. The include leverage proxied Debt Equity Ratio, profitability Return Assets Firm Size natural logarithm Total Sales. population in this infrastructures sector companies listed...

Using a large database of U.S. mergers and acquisitions (M&As) announced from 2010 through 2017, we examine the effects capital ratio (leverage) on announcement period stock price reaction as well longer-term returns performance, for banks, making comparisons with non-banks. We compare reactions (computed in different ways) lower (lower than sample median) capitalized banks non-banks that h...