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Measurement of Higgs boson branching fractions
No full textWe describe methods one can employ at a [radical]s = 500 GeV e[sup +]e[sup [minus]] linear collider to measure the branching fractions of a Higgs boson. These methods select one Higgs decay mode above all others with high purity, leaving measureable Standard Model backgrounds as the only source of contamination. Integrated luminosities of 50fb[sup [minus]1] are required to obtain statistical errors of 10--20% on the branching fractions to b[bar b], [tau][sup +][tau][sup [minus]], and WW(*). For an intermediate mass Higgs this is sufficient to distinguish the MSSM from the Standard Model Higgs over most of the Supersymmetric parameter space
Studies of the strong and electroweak interactions at the Z{sub 0} pole
No full textThis thesis presents studies of the strong and electroweak forces, two of the fundamental interactions that govern the behavior of matter at high energies. The authors have used the hadronic decays of Z{sup 0} bosons produced with the unique experimental apparatus of the e{sup +}e{sup {minus}} Linear Collider at the Stanford Linear Accelerator Center (SLAC) and the SLAC Large Detector (SLD) for these measurements. Employing the precision tracking capabilities of the SLD, they isolated samples of Z{sup 0} events containing primarily the decays of the Z{sup 0} to a chosen quark type. With an inclusive selection technique, they have tested the flavor independence of the strong coupling, {alpha}{sub s} by measuring the rates of multi-jet production in isolated samples of light (uds), c, and b quark events. They find: {alpha}{sub s}{sup uds}/{alpha}{sub s}{sup all} 0.987 {+-} 0.027(stat) {+-} 0.022(syst) {+-} 0.022(theory), {alpha}{sub s}{sup c}/{alpha}{sub s}{sup all} = 1.012 {+-} 0.104(stat) {+-} 0.102(syst) {+-} 0.096(theory), {alpha}{sub s}{sup b}/{alpha}{sub s}{sup all} = 1.026 {+-} 0.041(stat) {+-} 0.030(theory), which implies that the strong interaction is independent of quark flavor within the present experimental sensitivity. They have also measured the extent of parity-violation in the Z{sup 0} c{bar c} coupling, given by the parameter A{sub c}{sup 0}, using a sample of fully and partially reconstructed D* and D{sup +} meson decays and the longitudinal polarization of the SLC electron beam. This sample of charm quark events was derived with selection techniques based on their kinematic properties and decay topologies. They find A{sub c}{sup 0} = 0.73 {+-} 0.22(stat) {+-} 0.10(syst). This value is consistent with that expected in the electroweak standard model of particle interactions
Dissolvable Metal Supports - Simplifying Metals Printing
No full textabstract: Additive Manufacturing and 3D printing are becoming important technologies in the manufacturing sector. The benefits of this technology include complex part geometry, short lead-times, low waste, and simple user interface. However, the technology does not come without its drawbacks: mainly the removal of support structures from the component. Traditional techniques that involve sawing and cutting can be expensive and take a long time, increasing the overall price of 3D printed metal components. This paper discusses two approaches taken for dissolvable support structures in 3D printed stainless steel (17-4 PH). For the first time in powder bed fusion components, with the help of Christopher Lefky and Dr. Owen Hildreth, dissolvable support capabilities are achieved in metal prints. The first approach, direct dissolution, involves direct corrosion of the entire part, leading to support removal. This approach is not self-terminating, and leads to changes in final component geometry. The second approach involves a post-build sensitization step, which physically alters the microstructure and chemical stability of the first 100-200 microns of the metal. The component is then etched at an electric potential that will readily corrode this sensitized surface, but not the underlying base metal. An electrolytic solution of HNO3/KCl/HCl paired with an anodic bias was used for the direct dissolution approach, resulting in a loss of about 120 microns of material from the components surface. For the self-limiting approach, surface sensitization was achieve through a post build annealing step (800 C for 6 hours, air cooled) with exposure to a sodium hexacynoferrate slurry. When the slurry decomposes in the furnace, carbon atoms diffuse into the surface and precipitate a chromium-carbide, which reduces the chemical stability of the stainless steel. Etching is demonstrated in an anodic bias of HNO3/KCl. To determine proper etching potentials, open circuit potential and cyclic voltammetry experiments were run to create Potentiodynamic Polarization Curves. Further testing of the self-terminating approach was performed on a 316 stainless steel interlocking ring structure with a complex geometry. In this case, 32.5 hours of etching at anodic potentials replaced days of mechanical sawing and cutting
Author unknown letter, 1879-08-18
No full textLetter, author unknown (apparently a former resident of Harmar), discussing church activities and the author's depression and despair, especially over past events
Globalizing Occupational Therapy: Bridging Gaps In Community-Based Care Of The Dominican Republic Through Digital Education In Therapeutic Interventions
No full textTitle: Globalizing Occupational Therapy: Bridging Gaps in Community-Based Care of the Dominican Republic Through Digital Education in Therapeutic Interventions
Author: Laura Hildreth
Background: Stroke is the second leading cause of death and third leading cause of disability worldwide. Disability from stroke is especially found in low-resource settings where access to rehabilitation therapy services is limited. This paper presents the development of the Stroke Stride Rehab Program which is an evidence-based program aimed to improve stroke rehabilitation outcomes in rural and remote communities, specifically in Puerto Plata, Dominican Republic.
Methods: The development of Stroke Stride Rehab included a detailed and comprehensive needs assessment including a literature review and stakeholder consultations to identify key gaps and challenges in stroke rehabilitation. Using evidence-based practices, technology access, and input from key stakeholders, the program was created to educate OTs, PTs, and other allied health care professionals on OT rehabilitation techniques for stroke survivors and provide resources to share with stroke survivors.
Results: The Stroke Stride Rehab program integrates video-based interventions and activities, QR technology, and capacity-building by providing resources to local Occupational Therapists, Physical Therapists, and other allied health professionals. The program aims to empower healthcare professionals and improve adherence to therapy exercises and activities among stroke survivors by emphasizing repetition, regularity, and cultural competence of resources provided through utilizing video-based resources.
Discussion: The Stroke Stride Rehab program aims to improve stroke rehabilitation outcomes in rural communities using technology and community partnerships. Key challenges including ongoing training for healthcare professionals and equitable access to technology must be continually addressed for the program to remain sustainable. Future research should focus on evaluating the program’s effectiveness and research additional technology innovations that may be utilized to increase access to stroke rehabilitation therapy services.
Conclusion: Stroke Stride Rehab exemplifies a collaborative effort to address complex challenges endured by stroke survivors in rural communities. Through integrating evidence-based practices, stakeholder input, and technology resources, the program has the potential to create a meaningful impact on the quality of life for stroke survivors and serve as a model for innovative stroke rehabilitation practices in settings with limited resource access worldwide.Doctor of Occupational Therapy (OTD)Occupational Therap
A study of eighty-seven negro families referred by municipal juvenile court (non-support division) Memphis, Tennessee, to the family welfare agency of Memphis, Tennessee, to the family Welfare Agency of Memphis, Incorporated, from January 1, 1942 to December 31, 1943, 1944
No full textOcean resources and intergovernmental relations in the 1980's : Outer continental shelf hydrocarbons and minerals
No full text32 pages. Paper presented at Woods Hole Oceanographic Institution, September 12, 1985.The author utilizes the legal indicia, primary court opinions, of federal-state conflict over outer continental shelf oil and gas development in the 1980's to support more general observations about intergovernmental relations offshore.Oregon Sea Grant, NOAA grant number NA85AA-D-SG-09
Testing for the Hildreth-Houck random coefficient model
No full textThis thesis was scanned from the print manuscript for digital preservation and is copyright the author.
Researchers can access this thesis by asking their local university, institution or public library to
make a request on their behalf. Monash staff and postgraduate students can use the link in the References field
THE PRAIRIE NATURALIST Volume 33, No.4 December 2001
No full textSPECIES, SEASON, AND DENSITY OF BURIED SEEDS SURVIVING FOX SQUIRREL DEPREDATION ▪ C. C. Smith, and J. M. Briggs
RELATI0NSHIP OF HYDROLOGICAL CONDITIONS AND POPULATlONS OF BREEDING PIPING PLOVERS ▪ D. S. Licht,
DEMODICOSIS IN A WHITE-TAILED DEER (ODOCOILEUS VIRGINIANUS) IN SOUTH DAKOTA ▪ C. N. Jacques, J. A Jenks. M. B. Hildreth. R. J. Schauer, and D. D. Johnson
SURVEYS OF CALLING AMPHIBIANS IN NORTH DAKOTA ▪ D. H. Johnson, and R. D. Batie
EFFECTS OF HUMAN PRESENCE ON VOCALIZATIONS OF GRASSLAND BIRDS IN KANSAS ▪ S. L Bye, R. J. Robel, and K. E. Kemp
Reviewers 2001
Author Index - Volume 33 .
Subject Index - Volume 33 .
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