Performance Considerations for an Embedded Implementation of OMA DRM 2

As digital content services gain importance in the mobile world, Digital Rights Management (DRM) applications will become a key component of mobile terminals. This paper examines the effect dedicated hardware macros for specific cryptographic functions have on the performance of a mobile terminal that supports version 2 of the open standard for Digital Rights Management defined by the Open Mobile Alliance (OMA). Following a general description of the standard, the paper contains a detailed analysis of the cryptographic operations that have to be carried out before protected content can be accessed. The combination of this analysis with data on execution times for specific algorithms realized in hardware and software has made it possible to build a model which has allowed us to assert that hardware acceleration for specific cryptographic algorithms can significantly reduce the impact DRM has on a mobile terminal's processing performance and battery life.Comment: Submitted on behalf of EDAA (http://www.edaa.com/

Effectiveness of a Homophobic Intervention upon Graduate Counseling Students

This study compared the homophobic attitudes of graduate level counseling students before and after a presentation exploring homophobia. The attitudinal scores of both the control and experimental groups were pre-tested and post-tested by the Index of Attitudes toward Homosexuals (IAH) and compared by an Analysis of Covariance (ANCOVA). The outcome indicated that the IAH post-test scores of the experimental group receiving the homophobic intervention were significantly reduced (p \u3c .001) compared to the IAH post-test scores of the control group that did not receive the intervention. The results demonstrate that a specific presentation about homophobia may be effective in reducing negative attitudes toward homosexuals

Chapter 7: Learners with Disabilities and Video-Based Instructional Message Design

Learners with disabilities are entitled to public education that supports their unique needs, but unfortunately, they experience poor post-secondary outcomes when compared to their peers, including lower rates of post-secondary education engagement and employment. Individuals with low incidence disabilities experience lower employment rates when compared to other individuals with disabilities, due to the impact of difficulties with social/communication, self-determination, and executive functioning skills. Researchers have developed video-based instruction with various message design and technology features to support independence for individuals with disabilities, including basic to complex vocational task completion. This chapter will provide useful information for designers, educators, state and private service providers, and families of individuals with disabilities

Dualities and loops on squashed S3S^3

We consider $\mathcal{N}=4$ supersymmetric gauge theories on the squashed three-sphere with six preserved supercharges. We first discuss how Wilson and vortex loops preserve up to four of the supercharges and we find squashing independence for the expectation values of these $\frac{2}{3}$-BPS loops. We then show how the additional supersymmetries facilitate the analytic matching of partition functions and loop operator expectation values to those in the mirror dual theory, allowing one to lift all the results that were previously established on the round sphere to the squashed sphere. Additionally, on the squashed sphere with four preserved supercharges, we numerically evaluate the partition functions of ABJM and its dual super-Yang-Mills at low ranks of the gauge group. We find matching values of their partition functions, prompting us to conjecture the general equality on the squashed sphere. From the numerics we also observe the squashing dependence of the Lee-Yang zeros and of the non-perturbative corrections to the all order large $N$ expression for the ABJM partition function.Comment: v2 added references and corrected typos, 17 pages, 3 appendices, 18 figures, 3 videos availabe at https://youtube.com/playlist?list=PL2-qyK_VoDsL0T98yxySNCW-QFVaNNNo

Foreign Investment and Pollution in China

环境污染是21世纪中国正在面临的最具挑战性的问题之一。与此同时，这个国家正在吸引大量的来自世界各地的外商直接投资。本文的目的是为了分析这些投资在水污染方面对中国的影响。结果表明，外国直接的投资有助于减弱水污染的整体强度。这篇文章是通过专注于研究国内投资水平流动的情况，而不是国际投资水平流动情况，来促进现有文献对外商直接投资的影响。 其次，本文认为，外国技术的溢出效应是可以被观察到的，并能帮助国内企业降低污水的排放量。最后，本文利用友好城市作为一个工具变量，来帮助解决内生性问题。 本文的研究成果可以被视为对中国环境监管机构的贡献，特别是针对那些需要了解在哪些领域的外商直接投资将会如何影响污染...Environmental pollution is one of the most challenging problems China is facing in the 21st century. At the same time the country is attracting record numbers of foreign direct investment from all over the world. The purpose of this thesis is to analyze the impact of these investment flows on waste water in China. The results show that foreign direct investment helps to reduce the overall water an...学位：经济学硕士院系专业：王亚南经济研究院_金融学学号：2772013115460

Typesetting Modern Greek with 128 Character Codes

International audienc

Depression and Contributors to Vocational Satisfaction in Roman Catholic Secular Clergy

A nationally selected, random sample of Roman Catholic secular (i.e., diocesan) priests was examined using the Center for Epidemiological Studies-Depression scale and an instrument developed for this study to assess contributors to priests’ vocational satisfaction. In addition, a self-report inventory gathered information regarding participants’ demographics as well as four categories of predictor variables (i.e., overall level of vocational satisfaction, social support, spiritual activities, physical environment). The study yielded a response rate of 45%. Secular clergy reported rates of depression approximately seven times greater than are found in the general population, and also indicated that the recent sexual abuse scandal in the Roman Catholic church had negatively affected their mood. Priests’ engagement in sacramental activities contributed greatly to their vocational satisfaction, and low levels of vocational satisfaction were found to be most predictive of depression. Factors comprising priests’ vocational satisfaction were External Manifestations (e.g., preaching, teaching), Internal Manifestations (e.g., prayer life, affirmation of God’s call), and Social Manifestations (e.g., relationships with parishioners, appreciation from others)

Influence of spacer length on heparin coupling efficiency and fibrinogen adsorption of modified titanium surfaces

<p>Abstract</p> <p>Background</p> <p>Chemical bonding of the drug onto surfaces by means of spacer molecules is accompanied with a reduction of the biological activity of the drug due to a constricted mobility since normally only short spacer molecule like aminopropyltrimethoxysilane (APMS) are used for drug coupling. This work aimed to study covalent attachment of heparin to titanium(oxide) surfaces by varying the length of the silane coupling agent, which should affect the biological potency of the drug due to a higher mobility with longer spacer chains.</p> <p>Methods</p> <p>Covalent attachment of heparin to titanium metal and TiO₂powder was carried out using the coupling agents 3-(Trimethoxysilyl)-propylamine (APMS), <it>N</it>- [3-(Trimethoxysilyl)propyl]ethylenediamine (Diamino-APMS) and <it>N</it>¹- [3-(Trimethoxy-silyl)-propyl]diethylenetriamine (Triamino-APMS). The amount of bound coupling agent and heparin was quantified photometrically by the ninhydrin reaction and the tolidine-blue test. The biological potency of heparin was determined photometrically by the chromogenic substrate Chromozym TH and fibrinogen adsorption to the modified surfaces was researched using the QCM-D (Quartz Crystal Microbalance with Dissipation Monitoring) technique.</p> <p>Results</p> <p>Zeta-potential measurements confirmed the successful coupling reaction; the potential of the unmodified anatase surface (approx. -26 mV) shifted into the positive range (> + 40 mV) after silanisation. Binding of heparin results in a strongly negatively charged surface with zeta-potentials of approx. -39 mV. The retaining biological activity of heparin was highest for the spacer molecule Triamino-APMS. QCM-D measurements showed a lower viscosity for adsorbed fibrinogen films on heparinised surfaces by means of Triamino-APMS.</p> <p>Conclusion</p> <p>The remaining activity of heparin was found to be highest for the covalent attachment with Triamino-APMS as coupling agent due to the long chain of this spacer molecule and therefore the highest mobility of the drug. Furthermore, the adsorption of fibrinogen on the differently heparinised surfaces in real time demonstrated that with longer spacer chains the ΔD/Δf ratios became higher, which is also associated with better biocompatible properties of the substrates in contact with a biosystem.</p