Wichita State University

About: Wichita State University is a education organization based out in Wichita, Kansas, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 4988 authors who have published 9563 publications receiving 253824 citations. The organization is also known as: WSU & Fairmount College.

Electronic Interactions and Photoinduced Electron Transfer in Covalently Linked Porphyrin−C60(pyridine) Diads and Supramolecular Triads Formed by Self-Assembling the Diads and Zinc Porphyrin

Abstract: Supramolecular triads of the type (donor-1)−acceptor:(donor-2) composed of free-base porphyrin, fullerene, and zinc porphyrin, have been formed by a “covalent-coordinate” approach. Toward this, two diads, namely, 5-(3‘-(2‘ ‘-(3‘ ‘‘ or 4‘ ‘‘-pyridyl)fulleropyrrolidinyl-N)ethoxyphenyl)-10,15,20-triphenylporphyrin, bearing C60 as acceptor and free-base porphyrin, H2P, as donor were first synthesized. The diads and self-assembled supramolecular triads, which were formed by coordinating the pyridine group located on the diads to zinc tetraphenylporphyrin, ZnP, have been characterized by semiempirical PM3, electrochemistry, and steady-state and time-revolved spectroscopic techniques. Subpicosecond and nanosecond transient absorption spectral studies of diads revealed the occurrence of the electron transfer from the H2P moiety to the C60 entity via the excited singlet state of H2P. Clear evidence for the formation of triads in o-dichlorobenzene was obtained from the steady-state and time-resolved fluorescence me...

Security in multi-tenancy cloud

Abstract: Cloud computing creates exciting opportunities like reduced costs and flexibility to the users. It also comprises of some risks like data security within the cloud. Several common security threats like data leakage, insecure API's, and malicious inside users are applicable to cloud computing environment as well. In this paper, the authors consider a cloud computing service where multiple Virtual Machines (VM's) are co-located on the same physical server. In such systems, physical resources are transparently shared by the VMs belonging to multiple users. In systems like these, a malicious user having control of a VM can try to gain control over other VM's resources or utilize all system resources leading to denial of resource attack over other VM users. A malicious user can also try to steal the data of other users located on the same server by compromising hypervisor file system (logical volumes). In this paper, security threats associated with cloud computing environment are evaluated. Authors also explore how such co-existent of VM's can be exploited to gain access over other user's data or deny service and propose constructive security measures that can be deployed to avoid such attacks.

Validation of cardiovascular fitness field tests in children with mental retardation.

Abstract: The validity of the 600-yard walk/run, the 20-m shuttle run, and a modified 16-m shuttle run was determined to measure aerobic capacity (VO2peak) in children with mild and moderate mental retardation. Practice sessions for all tests were conducted. All field tests were very reliable, and VO2peak was significantly related to them all. A stepwise multiple regression showed that field test performance, body mass index (BMI), and gender, but not age, were also significant predictors of VO2peak. All field tests were valid and reliable indicators of aerobic capacity, suggesting that these tests can be used to predict VO2max in children with mild and moderate mental retardation.

Job Search Methods, Job Search Outcomes, and Job Satisfaction of College Graduates: A Comparison of Race and Sex.

Abstract: A nationally representative sample of college graduates (N =11,152) were surveyed regarding their job-seeking behaviors and outcomes. Race and sex differences among the job search strategies used, number of job interviews, number of job offers, annual salary, and job satisfaction were examined. Results indicated significant race and sex differences in job search methods used. There were significant differences in underemployment and job satisfaction as a function of race, and in underemployment and annual salary as a function of sex. There were no significant differences in number of job interviews or job offers regardless of race or sex.

A first best toll pricing framework for variable demand traffic assignment problems

Abstract: In this paper, we present a toll pricing framework for a general variable demand traffic assignment problem with side constraints, where the demand between an origin destination pair is a function of the least total travel cost for making the trip. This general demand model unifies earlier toll pricing treatments of the variable demand models including elastic demand traffic assignment problems and combined distribution assignment problems. All of these models have the constant toll revenue property. Given that users experience the side constraints, we show that when they are charged by a toll vector in the first best toll set, the system optimal flows and demands are achieved. We then present a toll pricing framework by which a traffic planner might find the most appropriate toll vector given certain restrictions and objectives on the network. Finally, we derive the toll sets and illustrate the toll pricing framework for specific instances of the general variable demand models.