348 research outputs found

    Use of guided imagery and relaxation for the quality of life of cancer patients undergoing chemotherapy

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    This study examines, among cancer patients undergoing chemotherapy, the influence of relaxation training plus guided imagery on quality of life. Nineteen patients were randomly assigned to one of two groups. The experimental group subjects were given an audiotape containing relaxation and guided imagery and were instructed to listen daily for six weeks. The control group subjects were instructed to take time every day and relax while listening to music prepared by the investigator. A ll subjects completed the Functional Living Index for Cancer, the Multidimensional Health Locus of Control Scales, and the State-Trait Anxiety Inventory. In addition, physicians rated subjects' level of physical functioning using the ECOG scale, as w ell as the chemotherapy Intensity of treatment regime. Results indicate that subjects who listened to the relaxing music reported a significant Increase in quality of life from pre to post intervention, while the experimental or Imagery group subjects did not. Subjects in both groups reported significant decreases In state anxiety, but only subjects in the control group reported a significant change in trait anxiety over the course of the Intervention. In addition, subjects who scored lower on a measure of internal locus of control experienced the greatest improvement In quality of life over the course of the six week intervention. The results implicate the toxicity of chemotherapy as a factor influencing quality of life , and suggest that the benefits of relaxation for the patient undergoing chemotherapy can be achieved by simply taking time each day to enjoy the calming effects of music

    Mechatronic Camera Operator: Final Design Report

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    A mechatronic system is designed, constructed, and tested to aid filmmakers in the movement and control of a video camera. The system design allows for 6-DOF camera movement (movement in all three spatial directions, pan, tilt, and roll). The system is controlled by a human operator, using an implementation of a gamepad controller, and the system is battery-powered; the theoretical range of the system is therefore limited only by the onboard battery power, and the operator’s ability to keep within cord-length of the system as it moves. A misallocation of time resources resulted in an incomplete physical design, but preliminary testing indicates that the design is sound, and that mechanical specifications are sufficiently robust for a working final system. Further time and resources would be used to complete physical construction and electronic implementation, and to implement a feedback system to allow for closed-loop actuator control and the function of repeatable motio

    Night Matters—Why the Interdisciplinary Field of “Night Studies” Is Needed

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    The night has historically been neglected in both disciplinary and interdisciplinary research. To some extent, this is not surprising, given the diurnal bias of human researchers and the difficulty of performing work at night. The night is, however, a critical element of biological, chemical, physical, and social systems on Earth. Moreover, research into social issues such as inequality, demographic changes, and the transition to a sustainable economy will be compromised if the night is not considered. Recent years, however, have seen a surge in research into the night. We argue that “night studies” is on the cusp of coming into its own as an interdisciplinary field, and that when it does, the field will consider questions that disciplinary researchers have not yet thought to ask

    Meeting irrigation demands in a water-challenged environment

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    Presented at Meeting irrigation demands in a water-challenged environment: SCADA and technology: tools to improve production: a USCID water management conference held on September 28 - October 1, 2010 in Fort Collins, Colorado.Includes bibliographical references.Accurate estimates of spatially distributed evapotranspiration (ET) using remote sensing inputs could help improve crop water management, the assessment of regional drought conditions, irrigation efficiency, ground water depletion, and the verification of the use of water rights over large irrigated areas. In this study, ET was mapped using surface reflectance and radiometric temperature images from the Landsat 5 satellite in a surface energy budget algorithm driven by a surface aerodynamic temperature (SAT_ET) model. The SAT_ET model was developed using surface temperature, horizontal wind speed, air temperature and crop biophysical characteristic measured over an irrigated alfalfa field in Southeastern Colorado. Estimates of the remote sensing-based ET for a 4.0 hectare alfalfa field and a 3.5 hectare oats field, during the 2009 cropping season, were evaluated using two monolithic weighing lysimeters located at the Colorado State University Arkansas Valley Research Center (AVRC) in Rocky Ford, Colorado. Although the overall model performance was encouraging, results indicated that the SAT_ET model performed well under dry atmospheric and soil conditions and less accurately under high air relative humidity and soil water content conditions. These findings are evidence that SAT_ET needs to be further developed to perform better under a range of environmental and atmospheric conditions

    New Labour's communitarianisms

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    This article argues that communitarianism can be analysed on different levels — sociological, ethical and meta—ethical — and along different dimensions — conformist/pluralist, more conditional/less conditional, progressive/conservative, prescriptive/voluntary, moral/socioeconomic and individual/corporate. We argue that New Labour's communitarianism is a response to both neo-liberalism and old social democracy. It is sociological, ethical and universalist rather than particularist on the meta-ethical level. Labour increasingly favours conditional, morally prescriptive, conservative and individual communitarianisms. This is at the expense of less conditional and redistributional socioeconomic, progressive and corporate communitarianisms. It is torn between conformist and pluralist versions of communitarianism. This bias is part of a wider shift in Labour thinking from social democracy to a liberal conservatism which celebrates the dynamic market economy and is socially conservative

    VLT/ISAAC H-band spectroscopy of embedded massive YSOs

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    We have performed intermediate resolution (R = 5000), high signal-to-noise H-band spectroscopy of a small, initial sample of three massive embedded young stellar objects (YSOs), using VLT/ISAAC. The sample has been selected from sources characterised in previous literature as being likely of OB spectral type, to be unambiguously associated with bright (H < 14) single point sources in the 2MASS database, and to have no optical counterparts. Of the targets observed, one object shows a ~B3 spectrum, similar to a main sequence object of the same spectral type. A second object exhibits weak HeI and H emission, indicating an early-type source: we detect HeII absorption, which supports a previous indirect derivation of the spectral type as mid-O. The third object does not show absorption lines, so no spectral type can de derived. It does, however, exhibit a rich spectrum of strong, broad emission lines and is likely to be surrounded by dense circumstellar material and at a very early evolutionary stage. Our results from this very small sample are in agreement with those of Kaper et al. (2002), who also find spectra similar to optically visible main sequence stars, together with emission line objects representing a very early evolutionary phase, in their much larger sample of K-band spectra.Comment: 10 pages, 14 figures, A&A (accepted

    The architectures of media power: editing, the newsroom, and urban public space

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    This paper considers the relation of the newsroom and the city as a lens into the more general relation of production spaces and mediated publics. Leading theoretically from Lee and LiPuma’s (2002) notion of ‘cultures of circulation’, and drawing on an ethnography of the Toronto Star, the paper focuses on how media forms circulate and are enacted through particular practices and material settings. With its attention to the urban milieus and orientations of media organizations, this paper exhibits both affinities with but also differences to current interests in the urban architectures of media, which describe and theorize how media get ‘built into’ the urban experience more generally. In looking at editing practices situated in the newsroom, an emphasis is placed on the phenomenological appearance of media forms both as objects for material assembly as well as more abstracted subjects of reflexivity, anticipation and purposiveness. Although this is explored with detailed attention to the settings of the newsroom and the city, the paper seeks to also provide insight into the more general question of how publicness is material shaped and sited

    Discriminating External and Internal Causes for Heading Changes in Freely Flying Drosophila

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    As animals move through the world in search of resources, they change course in reaction to both external sensory cues and internally-generated programs. Elucidating the functional logic of complex search algorithms is challenging because the observable actions of the animal cannot be unambiguously assigned to externally- or internally-triggered events. We present a technique that addresses this challenge by assessing quantitatively the contribution of external stimuli and internal processes. We apply this technique to the analysis of rapid turns (“saccades”) of freely flying Drosophila melanogaster. We show that a single scalar feature computed from the visual stimulus experienced by the animal is sufficient to explain a majority (93%) of the turning decisions. We automatically estimate this scalar value from the observable trajectory, without any assumption regarding the sensory processing. A posteriori, we show that the estimated feature field is consistent with previous results measured in other experimental conditions. The remaining turning decisions, not explained by this feature of the visual input, may be attributed to a combination of deterministic processes based on unobservable internal states and purely stochastic behavior. We cannot distinguish these contributions using external observations alone, but we are able to provide a quantitative bound of their relative importance with respect to stimulus-triggered decisions. Our results suggest that comparatively few saccades in free-flying conditions are a result of an intrinsic spontaneous process, contrary to previous suggestions. We discuss how this technique could be generalized for use in other systems and employed as a tool for classifying effects into sensory, decision, and motor categories when used to analyze data from genetic behavioral screens

    Policy as a Crime Scene

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    This paper explores how policy constructs the objects it seeks to regulate, taking as its case the setting of penal policy in contemporary Scotland. It employs two distinctive theoretical frames to develop the analysis: Science and Technology Studies (STS) and ‘scene theory’ a body of work in cultural studies. These offer distinctive lenses that bring into focus how the technologies of policy – statistical reports, independent Commissions, research advice – help produce populations that require intervention. The penal policy setting in question, we argue, can be understood in the same way as a crime scene, where investigators must re-construct forensically a narrative that will be legally validated. In line with the theme of this book, it offers a reflexive account of how researchers themselves are drawn into and participate as key witnesses in the scene, testifying to ‘facts’ about a crime that may have never taken place. The article aims to make the case for the potential of STS and scene theory in producing insights about our understanding of policy, particularly criminal justice policy. In doing this, it also offers a critique of the formation of the criminological discipline in a way that has side-lined policy as an ‘administrative’ rather than critical intellectual issue
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