Today＇s society in Israel is divided and tom on many issues, including religion, and Jewish and Israeli identity, yet occasionally, a single event emerges which combines several divisions. One such issue is the ＂ide...Today＇s society in Israel is divided and tom on many issues, including religion, and Jewish and Israeli identity, yet occasionally, a single event emerges which combines several divisions. One such issue is the ＂identity crisis＂ also known as the question of ＂Who is a Jew？＂. This is a thorny complex problem, and one which has not yet been awarded a clear-cut constitutional solution. For example, it continues to be debated whether the religious definition should be the decisive factor, that is, should a Jew defined as an individual born to a mother who is Jewish or has been converted according to halacha, or whether Israeli identity is the more critical element and whether any individual born in or immigrated to Israel who served in the army, works and pays taxes in Israel, and identifies with the state＇s values should be identified as a Jew？ In this paper, the author wishes to focus on equally complicated issue, although one has attracted less attention. This is the issue of halachic polarization or extremism that characterizes Judaism in modem Israel. Following a brief historical explanation, the author defines the problem at hand, and propose a solution.展开更多
Controller vulnerabilities allow malicious actors to disrupt or hijack the Software-Defined Networking. Traditionally, it is static mappings between the control plane and data plane. Adversaries have plenty of time to...Controller vulnerabilities allow malicious actors to disrupt or hijack the Software-Defined Networking. Traditionally, it is static mappings between the control plane and data plane. Adversaries have plenty of time to exploit the controller's vulnerabilities and launch attacks wisely. We tend to believe that dynamically altering such static mappings is a promising approach to alleviate this issue, since a moving target is difficult to be compromised even by skilled adversaries. It is critical to determine the right time to conduct scheduling and to balance the overhead afforded and the security levels guaranteed. Little previous work has been done to investigate the economical time in dynamic-scheduling controllers. In this paper, we take the first step to both theoretically and experimentally study the scheduling-timing problem in dynamic control plane. We model this problem as a renewal reward process and propose an optimal algorithm in deciding the right time to schedule with the objective of minimizing the long-term loss rate. In our experiments, simulations based on real network attack datasets are conducted and we demonstrate that our proposed algorithm outperforms given scheduling schemes.展开更多
The influence of the New Public Management （NPM） principles in Portuguese Public Administration, particularly in higher education, has led these institutions on a path of adaptation of structures and systems in orde...The influence of the New Public Management （NPM） principles in Portuguese Public Administration, particularly in higher education, has led these institutions on a path of adaptation of structures and systems in order to improve their decision-making processes. Public organizations must, at the present, to consider the strategic issues that are of vitally importance to their survival. In this context, the Balanced Scorecard （BSC）, due to its intrinsic characteristics, is presented as value added in attempts to link the set of objectives with the corporate strategy; determining, a priori, a course of action that must be constantly monitored. Our research analyzes the issues underlining the development of a model of performance management based on the BSC and formatted to a higher education institution （HEI）. The analysis of the results confirms the viability of applying an evaluation model constructed within a specific framework. In addition, the analysis attests the importance of performance indicators in this model of evaluation, specifically those of accounting, and consequently, the added contribution they can make in the process of decision-making within HEI, particularly, in current times when the priority is to achieve more with fewer resources.展开更多
文摘Today＇s society in Israel is divided and tom on many issues, including religion, and Jewish and Israeli identity, yet occasionally, a single event emerges which combines several divisions. One such issue is the ＂identity crisis＂ also known as the question of ＂Who is a Jew？＂. This is a thorny complex problem, and one which has not yet been awarded a clear-cut constitutional solution. For example, it continues to be debated whether the religious definition should be the decisive factor, that is, should a Jew defined as an individual born to a mother who is Jewish or has been converted according to halacha, or whether Israeli identity is the more critical element and whether any individual born in or immigrated to Israel who served in the army, works and pays taxes in Israel, and identifies with the state＇s values should be identified as a Jew？ In this paper, the author wishes to focus on equally complicated issue, although one has attracted less attention. This is the issue of halachic polarization or extremism that characterizes Judaism in modem Israel. Following a brief historical explanation, the author defines the problem at hand, and propose a solution.
基金supported by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (No. 61521003)The National Key R&D Program of China (No.2016YFB0800101)+1 种基金the National Science Foundation for Distinguished Young Scholars of China (No.61602509)Henan Province Key Technologies R&D Program of China(No.172102210615)
文摘Controller vulnerabilities allow malicious actors to disrupt or hijack the Software-Defined Networking. Traditionally, it is static mappings between the control plane and data plane. Adversaries have plenty of time to exploit the controller's vulnerabilities and launch attacks wisely. We tend to believe that dynamically altering such static mappings is a promising approach to alleviate this issue, since a moving target is difficult to be compromised even by skilled adversaries. It is critical to determine the right time to conduct scheduling and to balance the overhead afforded and the security levels guaranteed. Little previous work has been done to investigate the economical time in dynamic-scheduling controllers. In this paper, we take the first step to both theoretically and experimentally study the scheduling-timing problem in dynamic control plane. We model this problem as a renewal reward process and propose an optimal algorithm in deciding the right time to schedule with the objective of minimizing the long-term loss rate. In our experiments, simulations based on real network attack datasets are conducted and we demonstrate that our proposed algorithm outperforms given scheduling schemes.
文摘The influence of the New Public Management （NPM） principles in Portuguese Public Administration, particularly in higher education, has led these institutions on a path of adaptation of structures and systems in order to improve their decision-making processes. Public organizations must, at the present, to consider the strategic issues that are of vitally importance to their survival. In this context, the Balanced Scorecard （BSC）, due to its intrinsic characteristics, is presented as value added in attempts to link the set of objectives with the corporate strategy; determining, a priori, a course of action that must be constantly monitored. Our research analyzes the issues underlining the development of a model of performance management based on the BSC and formatted to a higher education institution （HEI）. The analysis of the results confirms the viability of applying an evaluation model constructed within a specific framework. In addition, the analysis attests the importance of performance indicators in this model of evaluation, specifically those of accounting, and consequently, the added contribution they can make in the process of decision-making within HEI, particularly, in current times when the priority is to achieve more with fewer resources.
