University of North Carolina at Charlotte

About: University of North Carolina at Charlotte is a education organization based out in Charlotte, North Carolina, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 8772 authors who have published 22239 publications receiving 562529 citations. The organization is also known as: UNC Charlotte & UNCC.

The viable but non-culturable state in the human pathogen Vibrio vulnificus

Abstract: Vibrio vulnificus is a serious human pathogen, accounting for 95% of all seafood-related deaths in the United States. During the winter months, when coastal water temperatures drop below 10 °C, investigators have repeatedly reported their inability to isolate this estuarine bacterium from the environment. We now realize that this apparent ‘die-off’ is actually due to entry of the cells into a ‘viable but non-culturable’ state, a survival response to the low temperature stress. Cells in this state appear dormant, and cannot be cultured in or on routine bacteriological media, but are capable of returning to the actively metabolizing state when the environmental stress is removed. This review describes this non-culturable state in V. vulnificus, and its role in the ecology, physiology, and epidemiology of this pathogen.

Formal Proofs for the Security of Signcryption

Abstract: Signcryption is a public key or asymmetric cryptographic method that provides simultaneously both message confidentiality and unforgeability at a lower computational and communication overhead. In this paper, we propose a sound security model for signcryption that admits rigorous formal proofs for the confidentiality and unforgeablity of signcryption. A conclusion that comes out naturally from this work is that, as an asymmetric encryption scheme, signcryption is secure against adaptive chosen ciphertext attack in the random oracle model relative to, quite interestingly, the Gap Diffie-Hellman problem, and as a digital signature scheme, signcryption is existentially unforgeable against adaptive chosen message attack in the random oracle model relative to the discrete logarithm problem.

Career Adaptability in Childhood.

Abstract: Childhood marks the dawn of vocational development, involving developmental tasks, transitions, and change. Children must acquire the rudiments of career adaptability to envision a future, make educational and vocational decisions, explore self and occupations, and problem solve. The authors situate child vocational development within human life span and life course development paradigms and career development theory. They then consider the theoretical origins of career adaptability and examine it as a critical construct for construing vocational development. Two models derived from career construction theory offer guides for research and counseling practice designed to foster development through work and other social roles.

Mental- and Physical-Health Effects of Acute Exposure to Media Images of the September 11, 2001, Attacks and the Iraq War

Abstract: Millions of people witnessed early, repeated television coverage of the September 11 (9/11), 2001, terrorist attacks and were subsequently exposed to graphic media images of the Iraq War. In the present study, we examined psychological- and physical-health impacts of exposure to these collective traumas. A U.S. national sample (N = 2,189) completed Web-based surveys 1 to 3 weeks after 9/11; a subsample (n = 1,322) also completed surveys at the initiation of the Iraq War. These surveys measured media exposure and acute stress responses. Posttraumatic stress symptoms related to 9/11 and physician-diagnosed health ailments were assessed annually for 3 years. Early 9/11- and Iraq War-related television exposure and frequency of exposure to war images predicted increased posttraumatic stress symptoms 2 to 3 years after 9/11. Exposure to 4 or more hr daily of early 9/11-related television and cumulative acute stress predicted increased incidence of health ailments 2 to 3 years later. These findings suggest that exposure to graphic media images may result in physical and psychological effects previously assumed to require direct trauma exposure.