An integrated development facility for the calibration of low-energy charged particle flight instrumentation

A system was developed for the calibration and development of thermal ion instrumentation. The system provides an extended beam with usable current rates, approx. 1 pA/sq cm, at beam energies as low as 1 eV, with much higher values available with increasing energy. A tandem electrostatic and variable geometry magnetic mirror configuration within the ion source optimizes the use of the ionizing electrons. The system is integrated under microcomputer control to allow automatic control and monitoring of the beam energy and composition and the mass and angle-dependent response of the instrument under test. The system is pumped by a combination of carbon vane and cryogenic sorption roughing pumps and ion and liquid helium operating pumps

Sedentary behaviour and diet across the lifespan: an updated systematic review.

Sedentary behaviour and its association with dietary intake in young people and adults are important topics and were systematically reviewed in 2011. There is a need to update this evidence given the changing nature of sedentary behaviour and continued interest in this field. This review aims to assist researchers in better interpreting the diversity of findings concerning sedentary behaviour and weight status

Educator-Perceived Affects of Autism Spectrum Disorder on Deaf Children: A National Survey Study

The relationship between autism spectrum disorders and deafness continues to be one that is relatively unexplored. When autism and deafness occur together, a diagnosis of either condition may be missed or diagnosed late. For example, a deaf child may be diagnosed severely autistic only because it seems that comprehension and receptive abilities are lacking and a hearing test is simply not administered. Conversly, an individual may be diagnosed as deaf because a physician explains away atypical behavior as characteristic of being deaf, failing to consider autism. Truth is, however, it is highly probable that the two occur together, more so than previously thought. In this survey study, this relationship is explored further, surveying the administrators of schools for the deaf around the nation. In doing so, those with first-hand experience describe: the areas in which deaf children with autism struggle the most, methods that best help this population of students learn, and which approaches to communication work best

USING BONE BIOLOGY TO ENHANCE FORENSIC AND PALEOANTHROPOLOGICAL DNA ANALYSIS

We know that the optimal site for DNA extraction from human skeletal remains lies primarily in the petrous portion of the crania, and secondarily in the dental pulp, but we do not know why. As for the optimal location in the post-crania, targeted extraction sites are based on experience or inference, not empirical data. So, where to sample for DNA when only post-cranial elements are available? There are many instances where the petrous and/or teeth are not present or cannot be sampled. The three main goals of the project are 1- develop our foundational knowledge of the underlying cellular and biochemical reasons behind differential DNA preservation, 2- develop a minimally destructive sampling method, and 3- to construct a guide for forensic and biological anthropologists to determine which post-cranial elements to use for optimal DNA extraction. Pinpointing the ideal sites for the DNA extraction process will be advantageous when limited elements are available. Over 200 sites will be sampled from across a skeleton (obtained through the Montana State Crime Lab) and quantified for the number of starting molecules of both nuclear and mitochondrial DNA. Additionally, the 21 CODIS markers will be tested to see which sampling locations and bone types afford more complete STR profiles. Uniquely, this project will: 1) utilize knowledge of the cellular components and biochemical processes specific to the growth and maintenance of bones to target specific sites on skeletal elements for optimal DNA extraction, 2) incorporate knowledge of cell types to investigate the specific type of bone (cortical or trabecular) that is best for sampling at that site, 3) design and construct a visual “heat map” of the human post-cranial skeleton for use in both forensic DNA and ancient DNA (aDNA) laboratories

Gender Stereotypes within TV Shows for Preschoolers and their Effects on Children's Stereotypes.

Ph.D. Thesis. University of Hawaiʻi at Mānoa 2017

The effect of a random sampling interval on a sampled-data model of the human operator

Effect of random sampling interval on sampled data model of human operator in compensatory trackin

Physical activity and mental health in children and adolescents: A review of reviews

Objective: To synthesise reviews investigating physical activity and depression, anxiety, self-esteem and cognitive functioning in children and adolescents and to assess the association between sedentary behaviour and mental health by performing a brief review. Methods: Searches were performed in 2010. Inclusion criteria specifi ed review articles reporting chronic physical activity and at least one mental health outcome that included depression, anxiety/stress, self-esteem and cognitive functioning in children or adolescents. Results: Four review articles reported evidence concerning depression, four for anxiety, three for self-esteem and seven for cognitive functioning. Nine primary studies assessed associations between sedentary behaviour and mental health. Physical activity has potentially benefi cial effects for reduced depression, but the evidence base is limited. Intervention designs are low in quality, and many reviews include cross-sectional studies. Physical activity interventions have been shown to have a small benefi cial effect for reduced anxiety, but the evidence base is limited. Physical activity can lead to improvements in self-esteem, at least in the short term. However, there is a paucity of good quality research. Reviews on physical activity and cognitive functioning have provided evidence that routine physical activity can be associated with improved cognitive performance and academic achievement, but these associations are usually small and inconsistent. Primary studies showed consistent negative associations between mental health and sedentary behaviour. Conclusion:s: Association between physical activity and mental health in young people is evident, but research designs are often weak and effects are small to moderate. Evidence shows small but consistent associations between sedentary screen time and poorer mental health

Password Generators:Old Ideas and New

This paper considers password generators, i.e. systems designed to generate site-specific passwords on demand. Such systems are an alternative to password managers. Over the last 15 years a range of password generator systems have been described. This paper proposes the first general model for such systems, and critically examines options for instantiating this model; options considered include all those previously proposed as part of existing schemes as well as certain novel possibilities. The model enables a more objective and high-level assessment of the design of such systems; it has also been used to sketch a possible new scheme, AutoPass, intended to incorporate the best features of the prior art whilst also addressing many of the most serious shortcomings of existing systems through the inclusion of novel features.Comment: This is the full version of a paper with the same title due to be published in the proceedings of WISTP 2016 in September 201