Spinarc gas tungsten arc torch holder

Semiautomatic welding torch enables operator to control arc length, torch angle, and spring tension when welding small diameter aluminum tubing. Tungsten is preset for the weld to make arc initiation easier and to eliminate searching for the joint through a dark welding lens

First electrostatic probe results from Explorer 17

Electrostatic probe results from ionospheric sounding by Explorer XVII satellit

Nonabelian Gauge Theories on Noncommutative Spaces

In this paper, we describe a method for obtaining the nonabelian Seiberg-Witten map for any gauge group and to any order in theta. The equations defining the Seiberg-Witten map are expressed using a coboundary operator, so that they can be solved by constructing a corresponding homotopy operator. The ambiguities, of both the gauge and covariant type, which arise in this map are manifest in our formalism.Comment: 14 pages, latex, Talk presented at 2001: A Spacetime Odyssey - Michigan Center for Theoretical Physics, some typos correcte

Some winter characteristics of the northern high latitude ionosphere

Langmuir probe measurements of ionospheric electron density and temperature during winte

Orbital surveys and state resource management

The resource management implications of satellite earth resource surveys for the state of Ohio are discussed. Discussions cover environmental problems, planning future developments, and short- and long-range benefits of such resource management

The contribution of behaviour to falls among older people in and around the home

This thesis examines the contribution of behaviour to falls among older people in and around the home. Falls are an extensive problem, with the scale of this set to worsen in line with the increasing older population. Risk factors for falls have received much attention during recent years, although little emphasis has been given to the role of behaviour in falls risk. It is argued in the thesis that older people play an active role in their exposure to risk, influenced by their attitudes, beliefs and motivations. This aspect has received only limited consideration. The research consisted of five studies. The first three investigations used a triangulated approach to examine the contribution and role of older people's behaviour, physical ability and home environment design in fall risk. The fourth study considered the role of health practitioners in fall prevention and investigated barriers to successful interventions. The final study examined the contribution of a health psychology framework to understanding fall-related behaviour among older people. [Continues.

Closed Geodesics on Godel-type Backgrounds

We consider radial oscillations of supertube probes in the Godel-type background which is U-dual to the compactified pp-wave obtained from the Penrose limit of the NS five-brane near horizon geometry. The supertube probe computation can be carried over directly to a string probe calculation on the U-dual background. The classical equations of motion are solved explicitly. In general, the probe is not restricted to travel unidirectionally through any global time coordinate. In particular, we find geodesics that close.Comment: latex, 15 pages, 1 figure. v3: reference added, clarifications added and some discussions expande

The Conditional Effects of Ideology and Institutional Structure on Judicial Voting in State Supreme Courts

Two enormously influential perspectives on courts offer fundamentally different predictions about court outcomes and the effects of judge ideology on those outcomes. Well-known to political scientists studying courts, the ideological voting (IV) literature argues that judge ideology is a strong predictor of court outcomes and that those outcomes should be proximate to the policy preferences of courts. Less known to political scientists but highly influential, the law and economics perspective (LE) focuses on settlement behavior of litigants who try to minimize costs and thus estimate likely outcomes in court, and settle simpler cases pre-trial. In this case selection process litigants respond to cues that signal likely outcomes with the result that only complex, less predictable cases make it to trial leading to win-rates that coalesce at fifty percent for plaintiffs or defendants. From this perspective, litigant strategies cancel out the effects of judge ideology and court outcomes do not correspond to judges’ ideological preferences. We reconcile these perspectives by examining tort cases in state supreme courts from 1995 through 1998. The contrasting perspectives stem from the fundamental institutional processes upon which each perspective is based. The LE perspective dominates in states without lower appellate courts (LAC) where process of appeal in these state supreme courts is litigant-driven, with win-rates hovering at fifty percent and deviations from that norm accounted for by forces influencing litigant uncertainty. The ideological voting predicted by the IV literature occurs primarily in the context of state supreme court strategic reversals of LAC decisions---a process commensurate that operating with the U.S. Supreme Court. When it comes to judicial outcomes, institutional structure is a critical element shaping the influence of litigant strategy and judge ideology

Direct measurements of helium and hydrogen ion concentration and total ion density to an altitude of 940 kilometers

Measurement of ion concentration and total ion density in exosphere using mass spectrometer and electrostatic prob