76 research outputs found
A proposal to encourage more women to select the accounting profession as a career choice, 1967
No full textBirmingham News sleeve BN0008400
No full textGrand jury hearing / Federal building / Mr. and Mrs. Claude Vardaman / C. B. Holliman, glasses dark suit alone / Carl Thomas - Huntsville / Bowtie, light suit / See later negative / Indicted 62-8474 / Federal grand jury will have several witnesses appear this a.m. who we want to get / They are Claude Vardaman, his wife Sue, Carl Thomas of Huntsville, Charles Holliman / [Work order included
[Photograph 2012.201.B1378.0635]
No full textPhotograph used for a story in the Daily Oklahoman newspaper. Caption: "Principal Sonja Allison, party chairman Linda Holliman, former principal Robert Woodson and second-grade teacher Alice Story, from left, prepare to launch balloons at the celebration.
Secure low-power body area network for real-time physiological status monitoring
No full textThesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Cataloged from student-submitted PDF version of thesis.Includes bibliographical references (pages 89-94).Real-time monitoring of physiological data can reduce the likelihood of injury in noncombat military personnel and first-responders. MIT Lincoln Laboratory is developing a tactical Real-Time Physiological Status Monitoring (RT-PSM) system architecture and reference implementation named OBAN (Open Body Area Network), the purpose of which is to provide an open, government-owned framework for integrating multiple wearable sensors and applications. The OBAN implementation accepts data from various sensors enabling calculation of physiological strain information which may be used by squad leaders or medics to assess the team's health and enhance safety and effectiveness of mission execution. Security in terms of measurement integrity, confidentiality, and authenticity is an area of interest because OBAN system components exchange sensitive data in contested environments. In this thesis, I analyze potential cyber-security threats and their associated risks to a generalized version of the OBAN architecture. Using the threat analysis, I identify security requirements for RT-PSM systems and describe the development of a secure RT-PSM system, called the Authenticated and Trustworthy Open Body Area Network (AUTOBAN) proof-of-concept implementation, that meets those requirements using cryptographic primitives that operate efficiently on low-power embedded devices. The threat analysis and proof-of-concept application, are intended to inform the development of secure RT-PSM architectures and implementations.by John H. Holliman, III.M. Eng
U.S. President Barack Obama speaks at a town hall event held at Norhtern Virginia Community College, Annandale, VA
No full textPresident Barack Obama speaks about fiscal policy, the Federal budget, reducing the deficit, and improving America\u2019s fiscal future at a town hall event held at Northern Virginia Community College in Annandale, VA. Obama declares the debate is not about whether the budget is cut, but how the budget is cut. Obama answers questions
Supporting excellence in engaged research
No full textThis paper reviews the purposes, definitions and criteria designed to embed ‘engaged research’ as a strategic priority with universities, and explores some of the challenges of implementation. Surveys of academics have shown various understandings of, and attitudes to, the practices of engaged research, but also impediments to realising the aspirations it expresses. Drawing on the experience as the academic lead for engaged research at the Open University, the author explores questions of professionalisation, for example, through training, support mechanisms and measures of recognition for engaged research. He concludes by arguing that, if done well, engaged research can promote epistemic justice
Attention deficit hyperactivity disorder:Characteristics, identification and treatment
No full textAttention deficit hyperactivity disorder (ADHD) is the most commonly diagnosed psychological disorder of childhood (Barkley 2006). Worldwide, prevalence of ADHD is estimated at 5 percent among school-age children (Polanczyk et al. 2007). The Diagnostic and Statistical Manual of Mental Disorders (DSM; American Psychiatric Association (APA) 2000) defines ADHD as a biological dysfunction that results in hyperactive, inattentive, and impulsive behaviour to such an extent that it causes social, educational, or work performance problems. It is a chronic, lifelong disorder and while some symptoms may abate over time, the core problems remain. For children this may result in lower academic achievement and difficulty in social settings. If untreated into adulthood, ADHD can increase the incidence of risk-taking behaviour, dangerous driving, substance misuse, depression, and criminality (Barkley 2006). Given this impact of the disorder, the purpose of this chapter is to provide an overview, particularly in relation to its diagnosis, characteristics, possible causes, and treatment. The chapter also considers explanatory theories and the influence of psychosocial factors
Three-Dimensional Display Systems
No full textToday’s three-dimensional display systems provide new advantages to end-users; they are able to support an auto-stereoscopic, no-glasses, three-dimensional experience with significantly enhanced image quality over previous generation technology. There have been particularly rapid advances in personal auto-stereoscopic three-dimensional display for desktop users brought about because of the opportunity to combine micro-optics and LCD displays coinciding with the availability of low cost desktop image processing and three-dimensional computer graphics systems. In this chapter we concentrate our detailed technical discussion on personal three-dimensional displays designed for desktop use as these are particularly benefiting from new micro-optic elements. We emphasize the systems aspect of three-dimensional display design believing it is important to combine good optical design and engineering with the correct digital imaging technologies to obtain a high quality three-dimensional effect for end users. The general principles discussed will be applicable to the design of all types of stereoscopic three-dimensional display
Measuring visual discomfort associated with 3D displays
No full textSome people report visual discomfort when watching 3D displays. For both the objective measurement of visual fatigue and the subjective measurement of visual discomfort, we would like to arrive at general indicators that are easy to apply in perception experiments. Previous research yielded contradictory results concerning such indicators. We hypothesize two potential causes for this: 1) not all clinical tests are equally appropriate to evaluate the effect of stereoscopic viewing on visual fatigue, and 2) there is a natural variation in susceptibility to visual fatigue amongst people with normal vision. To verify these hypotheses, we designed an experiment, consisting of two parts. Firstly, an optometric screening was used to differentiate participants in susceptibility to visual fatigue. Secondly, in a 2x2 within-subjects design (2D vs 3D and two-view vs nine-view display), a questionnaire and eight optometric tests (i.e. binocular acuity, fixation disparity with and without fusion lock, heterophoria, convergent and divergent fusion, vergence facility and accommodation response) were administered before and immediately after a reading task. Results revealed that participants found to be more susceptible to visual fatigue during screening showed a clinically meaningful increase in fusion amplitude after having viewed 3D stimuli. Two questionnaire items (i.e., pain and irritation) were significantly affected by the participants’ susceptibility, while two other items (i.e., double vision and sharpness) were scored differently between 2D and 3D for all participants. Our results suggest that a combination of fusion range measurements and self-report is appropriate for evaluating visual fatigue related to 3D displays.Human Computer InteractionElectrical Engineering, Mathematics and Computer Scienc
A study of lipids from animal skin secretions
No full textWithin the akin of animals are situated various glands which secrete their products to the outer surface of the skin. The glands exist in many forms and their functions are diverse. A satisfactory classification based on the morphology of the glands has been worked out and the glands of the vertebrata are recognised as belonging to three main types: - holocrine, eccrine and apocrine glands. In man the holocrine glands are referred to as sebaceous and the eccrine as sudoriferous or sweat glands. These terms are often used also for animals. Comparatively few animal skin glands or secretions have been investigated chemically. The sebaceous secretion of the sheep, wool wax, has been much investigated owing to the commercial value of this product; and the author participated for some years in studies of wool wax at the National Chemical Research Laboratory, Pretoria. In Chapter I is summarised the present knowledge of wool wax chemistry, including contributions from this laboratory into the investigation of dihydric alcohols and hydroxy-acids and the syntheses of iso-acids which occur in wool wax. Skin secretions which have no commercial applications are nevertheless of great interest from a physiological and biochemical point of view. In this respect human skin secretions may naturally attract more attention than those of other animals. Their investigation may prove rewarding in throwing further light upon the studies of dermatological disorders in general, and more particularly upon the all-important problem of skin cancer. A study of human sebaceous secretions was taken up in this laboratory by the author; the aliphatic alcohols and some polycyclic hydrocarbons present were investigated. The chemistry of human sebaceous secretions is reviewed in Chapter II. Chapter III reviews work of other investigators on various skin gland secretions. The "scent" glands of musk deer and other animals and the "preen" glands of some birds have been investigated. Some materials of human origin such as ear wax, which are considered as related to sebaceous secretions, are included in this review. Natural fats and waxes are generally of complex composition and early workers did not succeed in isolating many pure components from such materials. As a result of improved techniques and methods considerable progress has been made in the last few years towards the elucidation of the fine structures of fats and waxes
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