11,380 research outputs found
Feminist Perspective of Cross-gender Power Relation in Caryl Churchill's Top Girls
Top Girls, one of Caryl Churchill's most popular plays, describes the lives of six female characters coming from different centuries. Each of them has their own story to tell, as they have all been victimized by the patriarchal system in the century when they live and have resisted the system with different strategies. They either employ roles that are traditionally reserved for men or they adopt the archetypically feminine qualities. Despite their resistance and success, they find themselves unhappy and unsatisfied over their achievements. Thus this raises the question of the effectiveness of the feminist movement
A NETWORK INTRUSION DETECTION SYSTEM USING DECISION TREE MACHINE LEARNING ON AN ISTN ARCHITECTURE
In recent years, the Navy has shown interest in an integrated satellite-terrestrial networking (ISTN) architecture for unmanned systems. With the development of satellite networks and growing numbers of unmanned system networks being connected, security and privacy are major concerns in an ISTN. In this thesis, we develop a network intrusion detection system (NIDS) specifically for an ISTN. We identify the critical location of the NIDS within the ISTN architecture and use the decision tree machine learning algorithm to perform cyber-attack detection against various threat vectors, including distributed denial of service. The decision tree algorithm is used to classify and segregate attack traffic from benign traffic. We use an open source ISTN data set available in the literature to train our algorithm. The decision tree is implemented using different split criteria, varying number of splits, and the use of principal component analysis (PCA). We manipulate the size of the training data and the number of data features to achieve reasonable false positive rates. We show that our NIDS framework based on decision tree learning can effectively detect and segregate different attack data classes.Civilian, DSO National Labs, SingaporeApproved for public release. Distribution is unlimited
Appraising the Market Overt Exception
Under what circumstances can a sale of goods by a person, who is not the owner ofthe goods, nonetheless confer good title on the purchaser? The common law rule “nemo dat quodnon habet†embodies the principle that the transferee of goods cannot get better title than that of thetransferor. In other words, if goods are sold by a person who does not have title to the goods (forexample, because he had obtained the goods by theft), then he would be unable to pass title to asubsequent purchaser since he did not have title to begin with. The nemo dat rule thus protects thetrue or original owner of goods. One of the exceptions to this rule under the Hong Kong Sale ofGoods Ordinance is the market overt exception, which seeks to protect innocent purchasers. Thisarticle first considers the meanings of and rationales behind the nemo dat rule and the market overtexception respectively. Problems with the existing market overt exception will next be discussed. Asuggestion will then be made that the market overt exception be replaced with a rule that protectsinnocent buyers who deal as consumers and who have purchased goods from shops or markets inHong Kong
The personal and social influences of charity donations
The critical research question pondered in this paper is whether donation intentions can be predicted by general attitudes toward giving or helping. Using findings from the literature review and several focus groups, the authors propose a conceptual framework of charity donation intentions and test it with data from a sample of 313 survey respondents. Partial least squares regression was used to estimate the model and results indicated that while general attitudes towards helping others are influenced by altruism and collectivism, it does not predict donation intentions to a specific charity organization. The authors conclude that donation intentions to a specific organization is organization- or context-bound and that global predictors, such as personal and social characteristics, may not be as helpful in explaining donation behavior. The authors also call for more research in this are
Algorithms for optimal control of stochastic switching systems
© 2016 Society for Industrial and Applied Mathematics. Optimal control problems of switching type with linear state dynamics are ubiquitous in applications of stochastic optimization. For high-dimensional problems of this type, solutions which utilize some convexity related properties are useful. For such problems, we present novel algorithmic solutions which require minimal assumptions while demonstrating remarkable computational efficiency. Furthermore, we devise procedures of the primal-dual kind to assess the distance to optimality of these approximate solutions
Wideband, high efficiency optical modulator requires less than 10 watts drive power
Wideband optical modulation system operates with less than 10-watts drive power. It consists of an optical modulator and transistorized driver that combines small cross-section potassium dideuterium phosphate crystals with laser beam-condensing optics. Optical modulation systems may serve importantly in future space wideband communication systems
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