Water Quality Control and Management of Animal Wastes Through Culture with Selected Fishes

Research Report 151, Final Report, Project A-083-ILL, Agreement No. 14-34-001-8015Report issued on: April 1980Submitted to unspecified recipien

What makes a looked after child happy and unhappy?

What is good for a looked after child is usually decided by adults with the child’s voice often peripheral. One way to make the child central to decision-making is to ask them what makes them happy or unhappy. In doing this, the definition of happiness has to be neither a description of what has gone well in life nor an immediate state of mind, but should encompass the Aristotelian concept of eudaimonia. This is often translated as happiness but also incorporates notions of well-being and flourishing. The study reported here was undertaken as part of a children’s health needs assessment in an English local authority. It sought to understand why looked after children experience such high levels of poor mental health and make growing demands on therapeutic services. The proportion of young people displaying above average scores on validated measures, such as the Strengths and Difficulties Questionnaire (SDQ), is growing each year. The aim was to find out what looked after children say makes them happy and unhappy and what they see as likely to increase their well-being, and to compare their suggestions with those of the professionals and carers involved in their lives. Focus groups with children and professionals then discussed the same question, with the professionals also examining their understanding of SDQ results and their relevance to practice. The study found significant differences between the views of the children and professionals in both the range and emphasis of what is seen as important. Moreover, these adult assumptions were rarely tested by meaningful discussions with young people when key decisions were made; indeed, these seemed to be made about rather than with the children. In addition, the SDQ was not widely used by professionals to assess children’s emotional health and well-being needs. The study concluded that discussions about happiness can usefully support holistic understandings of looked after children’s experiences and aid planning and practice development

The eikonal distorted wave Born approximation for the excitation of hydrogen by impact with hydrogen and helium in the intermediate energy range

An eikonal approximation is applied to atom-atom scattering in the intermediate energy range. The theory and the form of the eikonal approximation are reviewed. Also a brief survey of previous theoretical methods for all energy ranges is included. In particular, the differential and total cross sections for the excitation of hydrogen to the 2s and 2p states by impact on hydrogen and helium atoms have been calculated using the eikonal distorted wave Born approximation (DWBA) for the incident energy range of 2.25-100 keV. The eikonal DWBA differential cross sections are compared to the differential cross sections given by the first Born approximation. The eikonal DWBA results predict a lower cross section for smaller angles and a much slower fall off with larger angles than the first Born approximation. For H-He scattering at 10 keV, the eikonal DWBA differential cross section is compared to experimental data. It was found to agree quite well in shape and slope but differed in magnitude by a factor of four. The eikonal DWBA total cross sections were compared to other theoretical calculations and were found to follow closely to the multistate impact parameter calculations. In the limit of high energies and very small angle scattering, the results for the eikonal DWBA total cross section were shown to reduce to the 2-state distortion approximation. Also for H-He scattering, a comparison of total cross sections is made between the eikonal DWBA results and experimental data. Agreement is found to be poor at the lower energies where the eikonal DWBA results are not expected to be valid and good at the higher energies --Abstract, pages ii-iii

Effect of Combined Sympathetic and Vagal Stimulation on Heart Rate in the Dog

journal articleBiomedical Informatic

A research laboratory for the Bethlehem Steel Company at Bethlehem, Pennsylvania

Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1956.Accompanying drawings held by MIT Museum.Includes bibliographical references.by Richard Wellington Homer.M.Arch

A rubidium-strontium isotopic investigation of the possibility of dating hydrothermal mineral deposits.

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1968.Volume consists of two pts.; pt. 1 divided into three sections. Vita.Includes bibliographies.Ph.D

Resume of Richard Homer Franke, 1991-02

Naval Postgraduate School Faculty Resum

Time-Resolved Ultraviolet Observations of the Globular Cluster X-ray Source in NGC 6624: The Shortest Known Period Binary System

Using the Faint Object Spectrograph (FOS) aboard the Hubble Space Telescope, we have obtained the first time-resolved spectra of the King et al. ultraviolet-bright counterpart to the 11-minute binary X-ray source in the core of the globular cluster NGC 6624. This object cannot be readily observed in the visible, even from HST, due to a much brighter star superposed <0.1'' distant. Our FOS data show a highly statistically significant UV flux modulation with a period of 11.46+-0.04 min, very similar to the 685 sec period of the known X-ray modulation, definitively confirming the association between the King et al. UV counterpart and the intense X-ray source. The UV amplitude is very large compared with the observed X-ray oscillations: X-ray variations are generally reported as 2-3% peak-to-peak, whereas our data show an amplitude of about 16% in the 126-251 nm range. A model for the system by Arons & King predicts periodic UV fluctuations in this shortest-known period binary system, due to the cyclically changing aspect of the X-ray heated face of the secondary star (perhaps a very low mass helium degenerate). However, prior to our observations, this predicted modulation has not been detected. Employing the Arons & King formalism, which invokes a number of different physical assumptions, we infer a system orbital inclination 35deg<i<50 deg. Amongst the three best-studied UV/optical counterparts to the intense globular cluster X-ray sources, two are now thought to consist of exotic double-degenerate ultrashort period binary systems.Comment: 10 pages including 2 figures in Latex (AASTeX 4.0). Accepted for publication in vol. 482 (1997 June 10 issue) of The Astrophysical Journal (Letters

Beyond statistics: accepting the null hypothesis in mature sciences

Scientific theories explain phenomena using simplifying assumptions—for instance, that the speed of light does not depend on the direction in which the light is moving, or that the shape of a pea plant’s seeds depends on a small number of alleles randomly obtained from its parents. These simplifying assumptions often take the form of statistical null hypotheses; hence, supporting these simplifying assumptions with statistical evidence is crucial to scientific progress, though it might involve “accepting” a null hypothesis. We review two historical examples in which statistical evidence was used to accept a simplifying assumption (that there is no luminiferous ether and that genetic traits are passed on in discrete forms) and one in which the null hypothesis was not accepted despite repeated failures (gravitational waves), drawing lessons from each. We emphasize the role of the scientific context in acceptance of the null: Accepting a null hypothesis is never a purely statistical affair