Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 381 for “"Covert"”.
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Investigations of covert phrase movement
The status of covert movement in Universal Grammar has been a perennial source of trouble in the study of language. What kinds of structures does it derive? To what extent is it similar to overt movement? What is its place in the overall architecture of the grammar? In this thesis I present several …
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Covert modals in root contexts
… both Imperatives and Root subjunctives have a covert bouletic modal operator with performative character. The fact that these constructions share these properties not only in Greek but also cross-linguistically is the second puzzle that we want to explain. I argue that we can account for these …
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Lifespan changes in covert attention alignment
There are two ways that attentional resources can be aligned in visual space. They can be "pulled" automatically by stimulus cues, or "pushed" in a more strategic manner by the observer in response to information cues. The present study was designed to determine if the ability to align attention in …
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Network covert channels on the Android platform
Network covert channels are used to exfiltrate information from a secured environment in a way that is extremely difficult to detect or prevent. These secret channels have been identified as an important security threat to governments and the private sector, and several research efforts have …
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State Preferences, Viable Alternatives, and Covert Action
… and where the United States</p><p>engaged in covert action during the Cold War. This study introduces novel data on</p><p>American covert action during the cold war, as well as new data on the presence of</p><p>viable alternative (VA) governments throughout the Cold War. It describes …
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Real-Time Detection of Storage Covert Channels
Covert channnels are a class of techniques for hiding the presence of communication between parties. In the context of cybersecurity, covert channels can be used by attackers to evade detection and to exfiltrate sensitive data. In so doing, they create a need for effective detection techniques for …
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The effects of augmenting systematic desensitization, covert sensitization and covert self-reward with group therapy in the treatment of alcoholism
… therapy plus systematic desensitization plus covert sensitization and covert self-reward).</p> <p>Treatment effectiveness was measured by administering the Michigan Alcoholism Screening Test {MAST) and the San Joaquin County Alcoholism Screening Test (SJCAST) to the subjects at the beginning …
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THE MODULATION OF COVERT ATTENTION BY EMOTION: AUTOMATIC PROCESSING OF EMOTIONAL VERSUS NEUTRAL VALENCED CUES IN A COVERT ATTENTION PARADIGM
… to subliminal image cues in an adapted Posner Covert Attention Task was examined in the current study. A sample of 64 participants was used in each of three separate experiments to examine how individuals were cued subliminally by negative or positive emotional vs. neutral images and the …
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Covert violence in nursing: A Western Australian experience
Covert violence in the workplace has been extensively theorized amongst social scientists as having negative effects on the worker’s self esteem, job satisfaction and stress, resulting in increased absenteeism and a reduction in productivity, and yet it continues to fester in nursing. The purpose …
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Sooner is better : covert action to prevent realignment
Why do states intervene covertly in some places and not others? This is a pressing question for theorists and policymakers because covert action is widespread, costly, and consequential. I argue that states wield it-whether by supporting political parties, arming dissidents, sponsoring coups, or …
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A study of covert queueing channels in shared schedulers
We study covert queueing channels (CQCs), which are a kind of covert timing channel that may be exploited in shared queues across supposedly isolated users. In our system model, a user modulates messages to another user via his pattern of access to the shared resource. One example of such a channel …
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Creation of a covert communications network for evasion of surveillance
<p>People all around the world have their internet access censored or monitored by governments or large corporations. Whistleblowers and human rights activists oftentimes need to communicate in secret to avoid persecution by the powerful organization monitoring their communications. Current …
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Sneak-peek: high speed covert channels in data center networks
… In this thesis, we present a novel network-based covert channel that can arise in the context of shared network resources in data-center environments even in the presence of network monitors regulating flow destinations with NAC policies and VLAN-based isolation mechanisms. Through a series of …
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Timing channel codes for covert communication and network flow tracing
The goal of this thesis is to achieve covert communication, i.e. to covertly relay information using resources that are traditionally unintended for data transmission. In a covert channel, only the sender and receiver are aware of the communication and capable of reading the transmitted message, …
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