On the Gauss map of quadric surfaces

In this paper, we study quadric surfaces in the 3-dimensional Euclidean space whose Gauss map n is of coordinate finite I-type, i.e., the position vector n satisfies the relation {\Delta}In = {\Lambda}n, where {\Delta}I is the Laplace operator with respect to the first fundamental form I of the surface and {\Lambda} is a square matrix of order 3. We show that helicoids and spheres are the only quadric surfaces of coordinate finite I-type Gauss map

Corporate cash-holding decisions: Amman stock exchange

This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Using a panel data analysis of a sample of 80 listed non-financial Jordanian firms during the period from 2000 to 2011, we investigated the corporate cash-holding decision. The firm’s decision to hold cash has come to the fore in last two or three years as a result of the recent global financial crisis, and the impact that this has had on the firms’ ability to raise funds from external sources. There is evidence in the US, for example, that firms have increased their holdings of cash as a result of increasing constraints from external sources. This current study therefore examines this issue from the point of view of a developing economy. We started by investigating the empirical determinants of corporate cash holdings; the results showed that firm size and growth opportunities have no significant effect on corporate cash-holding decisions, while firm’s cash flow, leverage, and liquid assets substitute have a significant negative effect on cash-holding decisions, and profitability and cash dividends have a positive effect on cash-holding decisions. Then we investigated empirically how cash-holding affects the value of corporate firms. Based on Fama and French’s (1998) valuation model and Faulkender and Wang’s (2006) model, the results showed that the marginal value of each Jordanian Dinar (JD) is valued at a discounted value of 0.41 JD; with higher leverage the marginal value of cash is declining, with a higher level of cash the marginal value of cash is increasing and, finally, cash dividends have no significant effect on shareholders’ value. We also investigated empirically how a group of explanatory variables affect a firm’s debt ratio by focusing on the liquidity variable. Results showed that the total debt ratio is positively affected by firm size and is negatively affected by growth opportunities, profitability, assets tangibility and total liquidity, cash, and non-cash liquidity. The long-term debt ratio is positively affected by firm size, non-debt tax shield, asset tangibility, total liquidity, cash, and non-cash liquidity, while the long-term debt ratio is negatively affected by growth opportunities and profitability. For the short-term debt models, the debt ratio is negatively affected by firm size, asset tangibility, and liquidity in its different forms. An investigation into the speed of adjustment showed that Jordanian firms quickly adjusted the total and long-term debt ratio, while they do not have an optimal or target short-term debt ratio

MIS CONTRIBUTION DEGREE IN MAKING EDUCATIONAL DECISIONS FROM THE PERSPECTIVE OF THE EDUCATION PRINCIPLES OF IRBID DISTRICT

This study aimed to reveal the degree of MIS contribution in making decisions from the perspective of principles. The study relied on the descriptive analytical method for the purpose of achieving its objectives. The study sample consisted of 221 employees of educational Irbid Districts (the first, the second, and the third). The study concluded that there is a statistically significant effect of MIS application degree at educational institutions in the Irbid District. It also shows the presence of a statistically significant effect of the degree of making educational decisions by the ministry of education principles at Irbid District. In addition, there is the presence of a statistically significant effect of the degree of making educational decisions at the education directorates in Irbid District. There is a presence of a statistically significant differences at the significance level (α ≤0.05) of the MIS contribution level in making educational decisions processes and instrument as a whole depending on the variable (sex, age, years of experience, educational qualification). The value (F) did not reach the level of statistically significant degree (α ≤0.05). The recommendations proposed to work on the introduction and integration of MIS in the supervision and rehabilitation of human resources process in the departments of Education

The Role of Means of Modern Technology in the Criminal Procedures in Jordan with a Special Focus on Electronic Trial

In recent times, the legal field has not been exempted from the benefits of technology which has surged significantly. Countries have tended to benefit from using the means of modern technology in the legal field. It is noteworthy that the notion of regulating the use of means of modern technology in the criminal procedures in Jordan is relatively new despite its importance. The recent outbreak of coronavirus (Covid-19) has brought about a shift in the way justice can still be carried out, by way of remote court appearances in order to observe social distancing rules. Consequently, the use of means of modern technology in criminal procedures especially conducting electronic trial could be illustrated as an effective alternative under the current situation. This article aims to examine the extent the Jordanian legislations welcome the use of means of modern technology in criminal procedures. The advantages of using the means of modern technology in the Jordanian criminal justice system will also be examined. A combination of various approaches is used for the purposes of this research. This includes a critical analysis approach by analysing the current primary and secondary available sources related to the use of means of modern technology in the criminal procedures in Jordan. The critical analysis approach is also used to identify how the Jordanian legislations have dealt with the use of means of modern technology in the criminal procedures especially the Jordanian Regulation of the Use of Means of Modern Technology in Criminal Procedures. A comparative approach is utilised to compare traditional criminal procedures with criminal procedures that use the means of modern technology. A descriptive approach is engaged to describe the laws and practices in Jordan with regards to the use of means of modern technology. This article concludes that Jordan has made significant efforts to facilitate the use of means of modern technology in criminal procedures. This could be represented by enacting the Jordanian Regulation of the Use of Means of Modern Technology in Criminal Procedures. This article also concludes that the advantages of the use of means of modern technology in the criminal procedures supersede their disadvantages. Keywords: The means of modern technology, Electronic trial, Criminal justice system. DOI: 10.7176/JLPG/96-13 Publication date: April 30th 202