421 research outputs found

    Homotopy Continuation Method of Arbitrary Order of Convergence for Solving Differenced Hyperbolic Kepler's Equation

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    In this paper, an efficient iterative method of arbitrary integer order of >=2 will be established for the solution of differenced hyperbolic convergent Kepler's equation. The method is of dynamic nature in the sense that, on going from one iterative scheme to the subsequent one, only additional instruction is needed. Moreover, which is the most important, the method does not need any priori knowledge of the initial guess. Aproperty which avoids the critical situations between divergent to very slow convergent solutios, that may exist in other numberical methods which depend on initial guess. Computeational package for digital implementation of the method is given

    Income inequality and intimate partner violence against women: Evidence from India

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    Intimate Partner Violence (IPV) has been consistently linked to poor health and adverse social outcomes. Though there is substantial empirical evidence on the determinants of IPV, little attention has been given to the potential impact of income inequality on domestic violence, especially in the developing world. This study aims to investigate the relationship between the IPV and contextual income inequality in India, a country with high prevalence of IPV and substantial income inequality. We use data on a nationally representative sample of 69,704 women from the third National Family Health Survey for India, conducted in 2005-06. Standard logistic regression and a Tobit model are used to examine the effect of income inequality, measured by the Gini-index, on different forms of IPV: physical, and sexual. In addition to income inequality, the multivariate analyses also control for other IPV determinants that are widely used in the literature. Results show a robust statistically significant positive association between income inequality and IPV in India. A one unit increase in the Gini-index increases the odds of sexual violence by 6.2% and less severe form of violence by 2.1%. Results of the Tobit model show that the intensity of violence against women increases by 0.0317 when the Gini-index increases by one unit. As for the other covariates, we find education level, husband's employment status, living in rural areas, being from non-scheduled caste, and the economic status of household to be protective factors from IPV. We also find the type of religion and caste/tribe to influence the likelihood of experiencing IPV. Policies that reduce income inequality would help in reducing the level of IPV against women

    Ab initio approaches to nuclear structure and scattering

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    The use of the ab initio (from first principles) no core shell model (NCSM) has proven to be highly successful, especially in systematically solving low-energy bound state problems. While there are many advantages in using the NCSM, there are also major technical difficulties in applying it to describe non-relativistic scattering states and reactions in the continuum despite recent progress. To address those difficulties, a simplification of the harmonic oscillator representation of scattering equations (HORSE) technique developed earlier, the single-state HORSE (SS-HORSE) method has been developed to describe various observables for light nuclei. The cost of this simplification however, is the loss of information on the continuum wave function, which limits the applicability of the SS-HORSE–NCSM approach. Moreover, extending the approach to multi-channel problems is nontrivial. With this in mind, the modified Hulth´en–Kohn method extending the NCSM to the continuum spectrum was suggested by Efros to address those shortcomings by allowing one to accurately compute the continuum wave function in a computationally feasible manner. In view of this, we combine the ideas of the Efros method with some achievements of the HORSE formalism to further refine the Efros method. We provide an illustration of the technique by calculating the two-body scattering problem, with a view to extending the method to few-body problems. We show that generalization to multi-channel problems is straightforward. We demonstrate other two-body applications of the method, including calculation of the p(n, γ)d reaction and the use of the S-matrix pole technique to compute resonance energies (Er), widths (Γ), and bound states. We show that given low-lying eigenfunctions of a Hamiltonian H with a truncated nucleon-nucleon (NN) interaction, we get accurate results. This suggests great promise for applicability to few-body problems, of which we provide results for n + α → 5He scattering in the resonance region. In addition to the non-relativistic continuum, the NCSM can also be extended to the relativistic regime. In particular, one can use light-front (LF) quantum-chromodynamics (QCD) by applying fermion and boson degrees of freedom and LF coordinates. We demonstrate the simplest possible Lagrangian describing bosons interacting via the λϕ^4 interaction. We find surprisingly complex structures with regards to critical coupling phenomena and conduct extensive error analysis. The results help us to better understand phase transitions for not only the ϕ^4 problem, but also to other more realistic problems involving quarks and gluons

    The Impact of Positive Discipline as a Classroom Management Approach on Students' Well-being and Academic Achievement: A Case Study in an International School in Cairo

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    This research is designed to identify the scope of positive discipline implementation as a classroom management approach in Groupe Scholaire Oasis (an international School in Cairo City) through investigating PD's impact on students’ well-being, and academic achievement. Researchers used a quantitative method through questionnaires applied on samples of students from two different age groups. Data analysis indicated that Positive Discipline approach as a Classroom Management Approach has a significant impact on students’ well-being and academic achievement after six years of implementation. This significant impact is on students of different grades (3- 5 age group and 6 – 9 age group). On the other hand, PD’s impact on students’ well-being and academic achievement differ according to age. The results showed that 3- 5 grades group was superior to the 3 – 6 grades group with regard to: PD Seven Abilities, Student: Well-Being, and Approach to Learning (ATL) Skills

    The Impact of Positive Discipline as a Classroom Management Approach on Students' Well-being and Academic Achievement: A Case Study in an International School in Cairo

    Get PDF
    This research is designed to identify the scope of positive discipline implementation as a classroom management approach in Groupe Scholaire Oasis (an international School in Cairo City) through investigating PD's impact on students’ well-being, and academic achievement. Researchers used a quantitative method through questionnaires applied on samples of students from two different age groups. Data analysis indicated that Positive Discipline approach as a Classroom Management Approach has a significant impact on students’ well-being and academic achievement after six years of implementation. This significant impact is on students of different grades (3- 5 age group and 6 – 9 age group). On the other hand, PD’s impact on students’ well-being and academic achievement differ according to age. The results showed that 3- 5 grades group was superior to the 3 – 6 grades group with regard to: PD Seven Abilities, Student: Well-Being, and Approach to Learning (ATL) Skills

    Biometric authentication using fingerprint and keypad for door lock securtiy system

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    Biometric lock is a lock that uses fingerprint to grant genuine user an access to a building, offices, and laboratory. The purpose of this project is to solve the major problems faced by the conventional lock or electronic combination lock, by adding electronic technology as well as biological technology together, user is the key to the lock. Users do not have to memorize combination as it is in the electronic combination lock, or carry the key along all the time. However with this device users simply need to place their finger on the fingerprint module and the device itself will determine whether to give or deny the access. This study also has other method which is password by using keypad. This study divided into three parts, which are hardware design, software design, and prototype design. The hardware design includes the electronics circuits used to enrol, identify, and delete fingerprint to the fingerprint module, LCD that gives command to the user. Software design includes the development of the source code that enables the Arduino UNO to control and interface with all hardware. The operation of the hardware, software and prototype design parts have been tested and verified individually and in combination. It simply performs three functions which are addition, verification, and deletion

    Does public health insurance increase maternal health care utilization in Egypt?

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    We assess the impact of health insurance on the utilization of maternal health care services in Egypt. A propensity score matching is used to control for baseline differences in the characteristics of the insured and uninsured women, to determine the difference in health care utilization between the two groups that is attributed solely to the health insurance coverage. The results yield that the national health insurance has a strong positive impact on most of the maternal healthcare indicators. Public health insurance coverage increases the likelihood of receiving antenatal care by about 7%, delivering in a public health facility by 8%, and the likelihood that a newborn receive vitamin A dose after delivery by 8.2%. However, women who are less educated, from a poor household, and rural regions, are less likely to be covered by a health insurance. The findings of this study would guide intervention measures that aim at improving health care utilization especially among the poor and other vulnerable groups
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