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Search Results: 1 - 10 of 53334 matches for " David Ramsey "
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To Sten
David Ramsey
Voices: A World Forum for Music Therapy , 2013,
Efficacy of a Topical Aromatic Rub (Vicks VapoRub®)-Speed of Action of Subjective Nasal Cooling and Relief from Nasal Congestion  [PDF]
Ron Eccles, Martez Jawad, David L. Ramsey, J. David Hull
Open Journal of Respiratory Diseases (OJRD) , 2015, DOI: 10.4236/ojrd.2015.51002
Abstract: Vicks VapoRub® (VVR) is a pharmaceutical preparation containing a combination of levomenthol, eucalyptus oil, turpentine oil and camphor as active ingredients, and thymol, cedarwood oil, and white soft paraffin as excipients. VVR is a petrolatum-based ointment to be either applied topically to the chest, throat, and back or added to hot water and the aromatic vapours inhaled. When used topically, the actives are evaporated by body temperature and inspired. The main therapeutic effects are the feeling of relief from nasal congestion and relief from cough. These were primarily experienced by patients as the trigeminal and olfactory impact of the aromatics and were hypothesized to be experienced within minutes. This was a randomized, single-(Investigator) blind, controlled, 2-arm (VVR vs. petrolatum), parallel design pilot study in 50 otherwise healthy adult patients suffering from common cold and experiencing nasal congestion. Speed to detection of a sensation of nasal cooling and nasal decongestion was assessed following application of the recommended amount of product. The time to first experience of a sensation of nasal cooling was significantly (p < 0.001) faster for patients who received VVR compared to control (median times of 23 and 99 seconds respectively). VVR delivered a statistically significant sensation of nasal cooling at all times from 12 seconds to 15 minutes after product application. The time to first experience of a sensation of nasal decongestion was significantly (p = 0.0102) faster for patients who received VVR compared to control (median times of 62 and 126 seconds respectively). VVR delivered a statistically significant sensation of nasal decongestion at all times from 62 seconds to 15 minutes after product application. No adverse events were reported during the study. Conclusion: Patients using Vicks VapoRub® as directed experienced significant differences from control for sensation of nasal cooling in 12 seconds and the sensation of nasal decongestion in 62 seconds.
Open-Label Real-World Pharmacy Purchaser Study of Two Fixed-Dose Combination OTC Cold Treatments; Wick MediNait, Wick DayMed Capsules or a Combination of Both  [PDF]
Gillian Phillipson, David Ramsey, Sue Aspley, Ingo Fietze
Open Journal of Respiratory Diseases (OJRD) , 2018, DOI: 10.4236/ojrd.2018.83006
Abstract: Acute upper respiratory tract infections, i.e. common colds cause multiple symptoms and affect adults on average 2 - 4 times a year and children 6 - 8 times per year. Thousands of non-prescription, over-the-counter products are used by sufferers, aimed at relieving the various both er some symptoms such as cough, nasal congestion, sore throat, etc. This study evaluated real-world effectiveness of Wick MediNait or Wick DayMed medicines alone and together in a combination as a day and night treatment regimen. Adult cold sufferers were recruited in pharmacy by pharmacy staff following self-purchase of either Wick MediNait, Wick DayMed capsules, or the combination of DayMed and MediNait. Participants completed online questionnaires before and after product use (evening of the first day for DayMed and the morning after using MediNait at bedtime). For the primary endpoint “Wick MediNait was effective at relieving my symptoms”, there was a statistically significant difference (p < 0.0001) in the users who Strongly Agreed or Agreed vs. Neither Agreed or Disagreed, Disagreed or Strongly Disagreed. Further, all symptoms evaluated (cough, runny nose, nasal congestion, fever, headache, sore throat, muscle aches and pains, sneezing) were statistically improved after MediNait and DayMed alone and when both were used, and users were satisfied with both treatments. All treatments were well tolerated with minimal adverse event reporting. The diurnal use of DayMed capsules combined with the nocturnal use of MediNait allows cold sufferers to efficiently self-manage their symptom relief throughout the day and night.
Li I enhancement during a long-duration stellar flare
David Montes,Lawrence W. Ramsey
Physics , 1998,
Abstract: We report the possible detection of a Li I 6708 AA line enhancement during an unusual long-duration optical flare in the recently discovered, X-ray/EUV selected, chromospherically active binary 2RE J0743+224. The Li I equivalent width (EW) variations follow the temporal evolution of the flare and large changes are observed in the intensity of the line. The maximum Li I enhancement occurs just after the maximum chromospheric emission observed in the flare. A significant increase of the 6Li/7Li isotopic ratio is also detected. No significant simultaneous variations are detected in other photospheric lines. Neither line blends nor starspots seem to be the primary cause of the observed Li I line variation. From all this we suggest that this Li I enhancement is produced by spallation reactions during the flare.
Correlated Equilibria in Competitive Staff Selection Problem
David M. Ramsey,Krzysztof Szajowski
Mathematics , 2006,
Abstract: This paper deals with an extension of the concept of correlated strategies to Markov stopping games. The Nash equilibrium approach to solving nonzero-sum stopping games may give multiple solutions. An arbitrator can suggest to each player the decision to be applied at each stage based on a joint distribution over the players' decisions. This is a form of equilibrium selection. Examples of correlated equilibria in nonzero-sum games related to the staff selection competition in the case of two departments are given. Utilitarian, egalitarian, republican and libertarian concepts of correlated equilibria selection are used.
Efficacy of a Topical Aromatic Rub (Vicks VapoRub) on Effects on Self-Reported and Actigraphically Assessed Aspects of Sleep in Common Cold Patients  [PDF]
Nayantara Santhi, David Ramsey, Gill Phillipson, David Hull, Victoria L. Revell, Derk-Jan Dijk
Open Journal of Respiratory Diseases (OJRD) , 2017, DOI: 10.4236/ojrd.2017.72009
Common cold sufferers frequently report sleep disruption during the symptomatic period of infections. We examined the effects of treatment with a topical aromatic pharmaceutical ointment (Vicks VapoRub), on associated sleep disturbances. The effects of Vicks VapoRub versus placebo (petrolatum ointment) on subjective and objective measured sleep parameters were assessed in an exploratory study of 100 common cold patients, in a randomized, single blind, controlled, two-arm, parallel design study. The primary efficacy variable was subjective sleep quality measured with the SQSQ (Subjective Quality of Sleep Questionnaire). Additional measures included, ease of falling asleep and depth of sleep (measured with a post-sleep Visual Analog Scale), total sleep time, sleep onset latency, activity score, percentage of sleep, sleep efficiency (measured with actigraphy and SQSQ) and sleep quality index measured with a modified Karolinska Sleep Diary (KSD). The primary endpoint, “How was the quality of your sleep last night?” showed a statistically significant difference in change from baseline in favour of VapoRub treatment (p = 0.0392) versus placebo. Positive effects of VapoRub versus placebo were also observed for “How refreshed did you feel upon waking up?” (p = 0.0122) (SQSQ), “Did you get enough sleep?” (p = 0.0036) (KSD), “How was it to get up?” (p = 0.0120) (KSD) and “Do you feel well-rested?” (p = 0.0125) (KSD). No statistically significant changes from baseline versus placebo were detected in the Actiwatch endpoints. Vicks VapoRub when applied before retiring to bed can reduce subjective sleep disturbances during a common cold. The results of this exploratory study support the belief among patients that the use of VapoRub improves subjective sleep quality during common cold which was associated with more refreshing sleep.
Parity- and Time-Reversal Tests in Nuclear Physics
David Hertzog,Michael J. Ramsey-Musolf
Physics , 2012,
Abstract: Nuclear physics tests of parity- and time-reversal invariance have both shaped the development of the Standard Model and provided key tests of its predictions. These studies now provide vital input in the search for physics beyond the Standard Model. We give a brief review of a few key experimental and theoretical developments in the history of this sub-field of nuclear physics as well as a short outlook, focusing on weak decays, parity-violation in electron scattering, and searches for permanent electric dipole moments of the neutron and neutral atoms.
Simulating protostellar jets simultaneously at launching and observational scales
Jon P. Ramsey,David A. Clarke
Physics , 2010, DOI: 10.1088/2041-8205/728/1/L11
Abstract: We present the first 2.5-D MHD simulations of protostellar jets that include both the region in which the jet is launched magnetocentrifugally at scale lengths $<0.1$ AU, and where the propagating jet is observed at scale lengths $>10^3$ AU. These simulations, performed with the new AMR-MHD code AZEuS, reveal interesting relationships between conditions at the disc surface, such as the magnetic field strength, and direct observables such as proper motion, jet rotation, jet radius, and mass flux. By comparing these quantities with observed values, we present direct numerical evidence that the magnetocentrifugal launching mechanism is capable, by itself, of launching realistic protostellar jets.
Library of medium-resolution fiber optic echelle spectra of F, G, K, and M field dwarfs to giants stars
David Montes,Lawrence W. Ramsey,Alan D. Welty
Physics , 1999, DOI: 10.1086/313230
Abstract: We present a library of Penn State Fiber Optic Echelle (FOE) observations of a sample of field stars with spectral types F to M and luminosity classes V to I. The spectral coverage is from 3800 AA to 10000 AA with nominal a resolving power 12000. These spectra include many of the spectral lines most widely used as optical and near-infrared indicators of chromospheric activity such as the Balmer lines (H_alpha, H_beta), Ca II H & K, Mg I b triplet, Na I D_{1} and D_{2}, He I D_{3}, and Ca II IRT lines. There are also a large number of photospheric lines, which can also be affected by chromospheric activity, and temperature sensitive photospheric features such as TiO bands. The spectra have been compiled with the goal of providing a set of standards observed at medium resolution. We have extensively used such data for the study of active chromosphere stars by applying a spectral subtraction technique. However, the data set presented here can also be utilized in a wide variety of ways ranging from radial velocity templates to study of variable stars and stellar population synthesis. This library can also be used for spectral classification purposes and determination of atmospheric parameters (T_eff, log{g}, [Fe/H]). A digital version of all the fully reduced spectra is available via ftp and the World Wide Web (WWW) in FITS format.
Some Statistics for Measuring Large-Scale Structure
Robert H. Brandenberger,David M. Kaplan,Stephen A,Ramsey
Physics , 1993,
Abstract: Good statistics for measuring large-scale structure in the Universe must be able to distinguish between different models of structure formation. In this paper, two and three dimensional ``counts in cell" statistics and a new ``discrete genus statistic" are applied to toy versions of several popular theories of structure formation: random phase cold dark matter model, cosmic string models, and global texture scenario. All three statistics appear quite promising in terms of differentiating between the models.
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