Studies of high energy pp collisions

The Standard Model of particle physics is examined in the context of high energy proton-antiproton collider experiments. The large energies available offer the possibility of producing new particles which may then be observed via their decay. Heavy quark production is examined through the production of unlike-sign lepton pairs. Methods for isolating several dilepton production mechanisms are given, including an eu signal for the top quark. Moreover, ψ production is shown to serve as a particularly clean tag for the production of particles containing b quarks. The possibility of observing a fourth generation heavy lepton via W decay is investigated. The hadronic decay mode leads to a promising signature of large missing accompanied by two hadronic jets and has a very healthy event rate. The monojet events found by the UA1 experiment are reviewed. Various extensions of the Standard Model are examined as possible explanations of these events. The first interpretation involves the production of SUSY particles. These are found to be compatible with the data if two squarks exist with mass 0(30GeV) and the gluino has mass > 0(60GeV). Secondly, interpretations based on four point effective interactions of the form qqZg are investigated, and are shown to be unable to account for the observed monojet rate. Finally, the production and decay of new heavy states (for example excited quarks) could account for the monojet data, but are found to predict large numbers of W + jet and γ + jet events which have not been seen

The Courier (Portsmouth, Ohio) - January 5, 1833

https://digitalcommons.shawnee.edu/portsmouth_courier/1001/thumbnail.jp

Histologic Changes Produced by 2,3,7,8-Tetrachlorodibenzo-p-dioxin in the Skin of Mice Carrying Mutations That Affect the Integument

2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) produces epidermal hyperplasia and hyperkeratosis, squamous metaplasia of the sebaceous gland, and keratinized cyst formation in 8 strains of mice with the recessive mutation, hairless (hr/hr). The extent of these histologic changes is dependent on the genetic background. No cutaneous lesions are produced in haired (hr/+) mice. In examination of mice with 7 other mutations affecting the integument, TCDD produced similar histologic skin changes in cryptothrix, nude, plucked, and atrichosis; a marginal squamous metaplasia of sebaceous glands in Repeated epilation, and had no effect in fur deficient and Naked mutants. These genetically determined epidermal responses are discussed in light of the mechanism of action of TCDD

Developing Culture-Adaptive Competency Through Experiences with Expressive Avatars

Modern Warfighters often find themselves in a variety of non-combat roles such as negotiator, peacekeeper, reconstruction, and disaster relief. They are expected to perform these roles within a culture alien to their own. Each individual they encounter brings their own set of values to the interaction that must be understood and reconciled. To navigate the human terrain of these complex interactions, the Warfighter must not only consider the specifics of the target culture, but also identify the stakeholders, recognize the influencing cultural dimensions, and adapt to the situation to achieve the best possible outcome. Vcom3D is using game-based scenarios to develop culturally adaptive competency. The avatars that represent the stakeholders must be able to portray culturally accurate behavior, display complex emotion, and communicate through verbal and non-verbal cues. This paper will discuss the use of emerging game technologies to better simulate human behavior in cross-cultural dilemmas. Nomenclature: culture, adaptive, values, cultural values dimensions, dilemmas, virtual humans, non-verbal communication

Using Finite Element Analysis (Fea) To Estimate Reed Frequency Of Vertical Motors For Pump Applications

LectureVertical motor/pump systems that run close to the motor reed frequency may experience significantly high vibration levels, which can damage the motor as well as the entire pump system. These damages can result in costly repairs of the motor/pump, therefore accurate prediction of motor reed frequency will enable a more cost- and performance-effective pump base design and will extend system life. A recent trend has shown that end users are requesting more accurate prediction of motor reed frequency (+/- 10%), enabling better pump base design with less potential for base rework. This study describes the utilization of Finite Element Analysis (FEA) as a tool in the prediction of vertical motor reed frequency and its correlation with extensive bump test results. Preliminary analysis first identified parameters that affect motor reed frequency. It was then followed by sensitivity studies, which further examined the impact of each parameter. One of the critical parameters is the stator core modulus. Because of its laminated structure, the core modulus is not uniform, which has a significant effect on motor reed frequency. The critical parameters were calibrated against existing test data using design of experiments. Lastly, they were used to verify future motor performance. This paper discusses the background behind the analysis, the FEA verification process as well as test validation

The Dream is Past

The dream is past, and with it fled,The hopes that once my passion fed;And darkly die, mid grief and pain,The joys which gone come not again.My soul, in silence and in tearsHas cherish\u27d now for many years;A love for one, who does not knowThe thoughts that in my bosom glow.Oh! cease my heart, thy throbbing hideAnother soon will be his bride;And hopes last faint but cheering ray,Will then forever pass away. They cannot see the silent tearThat falls uncheck\u27d when none are near;Nor do they mark the smother\u27d sigh,That leaves my breast when they are by.I know my cheek is paler now,And smiles no longer deck my brow;\u27Tis youth\u27s dcay, \u27twill soon beginTo tell the thoughts that dwell withinOh! let me rouse my sleeping pride,And from his gate, my feelings hide;He shall not smile, to think that I,With love for him could pine and die