Chronic pain and spinal cord stimulation.

Chronic pain can have a devastating impact and lead to patient isolation. Many people with chronic pain are predisposed to anxiety-depressant symptoms, due to a lower quality life. The aim of the study is to demonstrate how neuromodulation methods, can encourage the reduction of chronic pain and an improvement in the quality of life, therefore advancing the restoration of psychological well-being.We involved 50 patients with a diagnosis of pain that not respond to traditional pharmacological therapies. Interventions: All subject had depression and anxiety symptoms and a low-quality life. We used the spinal cord stimulation treatment and a psychological evaluation for assessment of depression-anxiety symptomatology and the level of quality life.We observed a significant difference in physical functioning, role limitations due to physical health, general health perceptions, vitality, social functioning, role limitations due to emotional problems and mental health.Our study affirms that the perception of chronic pain has a great impact on the perception of psychological well-being, quality of life, and the performance of normal daily social and professional activities

The Grizzly, November 14, 2002

Did you Miss the Election 2002? • Young Voters Ignore their Political Power • Ursinus Students Writing Kids Program Grant • History, Reminder Found in Veteran\u27s Day • Tartuffe Simply Delicious • Opinions: Are Dateds Worth It?; Homecoming: A Different Opinion; More Problems with Registration; Everclear Rocks Ursinus • Get Ready to Jazz: Ursinus Concert Band Style • Dateds: Worth the Dollar? • Everclear: Clearer than Ever • Exhibit Cases Return to Myrin Library • Men\u27s, Women\u27s Basketball Get Ready to Open Seasons • Roller Hockey Records First • Swim Team Opens Winter Season with a Win • Hot Dates for Collegeville Love Birds • Louie and his Band Rock U.C. • Meet the Ladies of Suites 106 and 204https://digitalcommons.ursinus.edu/grizzlynews/1525/thumbnail.jp

The Role of Eye Gaze in Subjective Decision Making

Shimojo, Simion, Shimojo and Scheier (2003) provided preliminary evidence that eye movements have an active role in preference formation. In their study, subjects were presented with two faces and chose which was more attractive. By manipulating how long subjects were able to look at each face after an eye movement, Shimojo et al. (2003) showed that faces presented for a longer duration were more likely to be chosen as more attractive. However, a recent study from Nittono and Wada (2009) showed that an eye movement may not be necessary for this effect, as novel graphic patterns presented in the centre of the screen (thus requiring no eye movements) for longer durations were also more likely to be preferred. The purpose of the current study was to further investigate whether eye movements do have an active role in preference formation. The present study used the same paradigm as Shimojo et al.’s (2003) study. Subjects in Experiment 1 were presented with images of two real faces, alternatively (one for 900ms, one for 300ms) for six repetitions. There were 3 independent experimental conditions. One group were required to make eye movements to laterally presented faces and judge attractiveness (lateral attractiveness condition), a second were not required to make eye movements to centrally presented faces and judge attractiveness (central attractiveness condition). The third were required to make eye movements to laterally presented faces and judge roundness (lateral roundness condition). The findings indicated that subjects were more likely to choose the longer presented faces in the lateral attractiveness and central attractiveness conditions, but not the lateral roundness conditions. Experiment 2 was similar to Experiment 1 with the exception of the type of stimuli, which consisted of computer generated faces (CGFs). Subjects were more likely to choose the longer presented CGF in the lateral attractiveness, central attractiveness and lateral roundness conditions. The findings of the present study were not in line with Shimojo et al.’s (2003) previous findings, who found that faces presented for a longer duration were only preferred in the lateral attractiveness condition of their study. It is possible that the faces that are presented for the longer duration in the current paradigm are preferred due to the increase in exposure duration irrespective of an eye movement (as per the findings from Nittono and Wada, 2009). As it is unclear as to whether eye movements play an active role in preference formation, the findings of the present study have not been able to contribute to computational models of decision making

Study of single muons with the Large Volume Detector at Gran Sasso Laboratory

The present study is based on the sample of about 3 mln single muons observed by LVD at underground Gran Sasso Laboratory during 36500 live hours from June 1992 to February 1998. We have measured the muon intensity at slant depths from 3 km w.e. to 20 km w.e. Most events are high energy downward muons produced by meson decay in the atmosphere. The analysis of these muons has revealed the power index of pion and kaon spectrum: 2.76 \pm 0.05. The reminders are horizontal muons produced by the neutrino interactions in the rock surrounding LVD. The value of this flux is obtained. The results are compared with Monte Carlo simulations and the world data.Comment: 13 pages, 2 figures, accepted for publication in "Physics of Atomic Nuclei

Jet production in charged current deep inelastic e⁺p scatteringat HERA

The production rates and substructure of jets have been studied in charged current deep inelastic e⁺p scattering for Q² > 200 GeV² with the ZEUS detector at HERA using an integrated luminosity of 110.5 pb⁻¹. Inclusive jet cross sections are presented for jets with transverse energies E_{T}^{jet} > 5 GeV. Measurements of the mean subjet multiplicity, 〈n_{sbj}〉, of the inclusive jet sample are presented. Predictions based on parton-shower Monte Carlo models and next-to-leading-order QCD calculations are compared to the measurements. The value of α_{s} (M_{z}), determined from 〈n_{sbj}〉 at y_{cut} = 10⁻² for jets with 25 < E_{T}^{jet} < 119 GeV, is α_{s} (M_{z}) = 0.1202 ± 0.0052 (stat.)_{-0.0019}^{+0.0060} (syst.)_{-0.0053}^{+0.0065} (th.). The mean subjet multiplicity as a function of Q² is found to be consistent with that measured in NC DIS

Multijet production in neutral current deep inelastic scattering at HERA and determination of α_{s}

Multijet production rates in neutral current deep inelastic scattering have been measured in the range of exchanged boson virtualities 10 5 GeV and –1 < η_{LAB}^{jet} < 2.5. Next-to-leading-order QCD calculations describe the data well. The value of the strong coupling constant α_{s} (M_{z}), determined from the ratio of the trijet to dijet cross sections, is α_{s} (M_{z}) = 0.1179 ± 0.0013 (stat.)_{-0.0046}^{+0.0028}(exp.)_{-0.0046}^{+0.0028}(th.)

Multiplicity Studies and Effective Energy in ALICE at the LHC

In this work we explore the possibility to perform ``effective energy'' studies in very high energy collisions at the CERN Large Hadron Collider (LHC). In particular, we focus on the possibility to measure in $pp$ collisions the average charged multiplicity as a function of the effective energy with the ALICE experiment, using its capability to measure the energy of the leading baryons with the Zero Degree Calorimeters. Analyses of this kind have been done at lower centre--of--mass energies and have shown that, once the appropriate kinematic variables are chosen, particle production is characterized by universal properties: no matter the nature of the interacting particles, the final states have identical features. Assuming that this universality picture can be extended to {\it ion--ion} collisions, as suggested by recent results from RHIC experiments, a novel approach based on the scaling hypothesis for limiting fragmentation has been used to derive the expected charged event multiplicity in $AA$ interactions at LHC. This leads to scenarios where the multiplicity is significantly lower compared to most of the predictions from the models currently used to describe high energy $AA$ collisions. A mean charged multiplicity of about 1000-2000 per rapidity unit (at $\eta \sim 0$) is expected for the most central $Pb-Pb$ collisions at $\sqrt{s_{NN}} = 5.5 TeV$.Comment: 12 pages, 19 figures. In memory of A. Smirnitski

A high resolution, low power time-of-flight system for the space experiment AMS

The system of plastic scintillator counters for the AMS experiment is described. The main characteristics of the detector are: (a) large sensitive area (four 1.6 m2 planes) with small dead space; (b) low-power consumption (150 W for the power and the read-out electronics of 336 PMs); (c) 120 ps time resolution. ( 1999 Elsevier Science B.V. All rights reserved

Measurement of Dijet Photoproduction at High Transverse Energies at HERA

The cross section for dijet photoproduction at high transverse energies is presented as a function of the transverse energies and the pseudorapidities of the jets. The measurement is performed using a sample of ep-interactions corresponding to an integrated luminosity of 6.3 pb-1, recorded by the ZEUS detector. Jets are defined by applying a kT-clustering algorithm to the hadrons observed in the final state. The measured cross sections are compared to next-to-leading order QCD calculations. In a kinematic regime where theoretical uncertainties are expected to be small, the measured cross sections are higher than these calculations

Dijet Cross Sections in Photoproduction at HERA

Dijet cross sections are presented using photoproduction data obtained with the ZEUS detector during 1994. These measurements represent an extension of previous results, as the higher statistics allow cross sections to be measured at higher jet transverse energy (ETjet). Jets are identified in the hadronic final state using three different algorithms, and the cross sections compared to complete next-to-leading order QCD calculations. Agreement with these calculations is seen for the pseudorapidity dependence of the direct photon events with ETjet \u3e 6 GeV and of the resolved photon events with ETjet \u3e 11 GeV. Calculated cross sections for resolved photon processes with 6 GeV \u3c ETjet \u3c 11 GeV lie below the data