57 resultados para Música per a instruments de corda
Resumo:
Support for family caregivers is a core function of palliative care. However, there is a lack of consistency in the way needs are assessed, few longitudinal studies to examine the impact of caregiving, and a dearth of evidence-based interventions. In order to help redress this situation, identification of suitable instruments to examine the caregiving experience and the effectiveness of interventions is required. A systematic literature review was undertaken incorporating representatives of the European Association for Palliative Care’s International Palliative Care Family Caregiver Research Collaboration and Family Carer Taskforce. The aim of the review was to identify articles that described the use of instruments administered to family caregivers of palliative care patients (pre and post-bereavement). Fourteen of the 62 instruments targeted satisfaction with service delivery and less than half were developed specifically for the palliative care context. In approximately 25% of articles psychometric data were not reported. Where psychometric results were reported, validity data were reported in less than half (42%) of these cases. While a considerable variety of instruments have been administered to family caregivers, the validity of some of these requires further consideration. We recommend that others be judicious before developing new instruments for this population.
Resumo:
This article aims to consider the role for a critical criminology outside the national dimension, highlighting its continuities with studies in the critical tradition which have suggested the need to address State criminality and criminogenic structures more in general, but also suggesting a critique of international criminal law as a governmentality project.It reconstructs the genealogy of the international criminal justice system, following on from Schmitt and other well known authors, but it focuses in specific on its paradoxes, contradictions and ambiguities rather than its purely political effect. The authors argue that critical criminologists should engage with the international dimension of crime and control and approach this venture of a international criminal justice system as the possibility of “telling the truth” about State atrocities without missing on using strategically the category of human rights and law to bring to the fore minoritarian interests which are
usually denied by power discourses and economic forces.
Resumo:
At the outset of a discussion of evaluating digital musical instruments, that is to say instruments whose sound generators are digital and separable though not necessarily separate from their control interfaces (Malloch, 2006), it is reasonable to ask what the term evaluation in this context really means. After all, there may be many perspectives from which to view the effectiveness or otherwise of the instruments we build. For most performers, performance on an instrument becomes a means of evaluating how well it functions in the context of live music making, and their measure of success is the response of the audience to their performance. Audiences evaluate performances on the basis of how engaged they feel they have been by what they have seen and heard. When questioned, they are likely to describe good performances as “exciting,” “skillful,” “musical.” Bad performances are “boring,” and those which are marred by technical malfunction are often dismissed out of hand. If performance is considered to be a valid means of evaluating a musical instrument, then it follows that, for the field of DMI design, a much broader definition of the term “evaluation” than that typically used in human-computer interaction (HCI) is required to reflect the fact that there are a number of stakeholders involved in the design and evaluation of DMIs. In addition to players and audiences, there are also composers, instrument builders, component manufacturers, and perhaps even customers, each of whom will have a different concept of what is meant by “evaluation.”
Resumo:
The purpose of this paper is to review recent developments in the design and fabrication of Frequency Selective Surfaces (FSS) which operate above 300 GHz. These structures act as free space electromagnetic filters and as such provide passive remote sensing instruments with multispectral capability by separating the scene radiation into separate frequency channels. Significant advances in computational electromagnetics, precision micromachining technology and metrology have been employed to create state of the art FSS which enable high sensitivity receivers to detect weak molecular emissions at THz wavelengths. This new class of quasi-optical filter exhibits an insertion loss
Resumo:
This paper investigates numerical simulation of a string coupled
transversely to a resonant body. Starting from a complete nite
difference formulation, a second model is derived in which the
body is represented in modal form. The main advantage of this hybrid form is that the body model is scalable, i.e. the computational
complexity can be adjusted to the available processing power. Numerical results are calculated and discussed for simplied models
in the form of string-string coupling and string-plate coupling.
Resumo:
We show that geographical factors influence long-run per capita income directly, as well as indirectly, through the quality of institutions. The direct influence of geography on per capita incomes is robust to the inclusion of a sub-Saharan Africa dummy and other tests. We obtain our results by replacing the usual instrument (settlers’ mortality (SM)) by stronger instruments for institutional quality (latitude, the share of the country in the temperate climatic zone). We also provide evidence that SM suffers from endogeneity with respect to institutional quality for early colonies, because of its dependence on nineteenth-century mortality data.
Resumo:
Experimental demonstration of negative ion acceleration to MeV energies from sub-micron size droplets of water spray irradiated by ultra-intense laser pulses is presented. Thanks to the specific target configuration and laser parameters, more than 109 negative ions per steradian solid angle in 5% energy bandwidth are accelerated in a stable and reliable manner. To our knowledge, by virtue of the ultra-short duration of the emission, this is by far the brightest negative ion source reported. The data also indicate the existence of beams of neutrals with at least similar numbers and energies.
Resumo:
To develop real-time simulations of wind instruments, digital waveguides filters can be used as an efficient representation of the air column. Many aerophones are shaped as horns which can be approximated using conical sections. Therefore the derivation of conical waveguide filters is of special interest. When these filters are used in combination with a generalized reed excitation, several classes of wind instruments can be simulated. In this paper we present the methods for transforming a continuous description of conical tube segments to a discrete filter representation. The coupling of the reed model with the conical waveguide and a simplified model of the termination at the open end are described in the same way. It turns out that the complete lossless conical waveguide requires only one type of filter.Furthermore, we developed a digital reed excitation model, which is purely based on numerical integration methods, i.e., without the use of a look-up table.
Resumo:
Capillary-based systems for measuring the input impedance of musical wind instruments were first developed in the mid-20th century and remain in widespread use today. In this paper, the basic principles and assumptions underpinning the design of such systems are examined. Inexpensive modifications to a capillary-based impedance measurement set-up made possible due to advances in computing and data acquisition technology are discussed. The modified set-up is able to measure both impedance magnitude and impedance phase even though it only contains one microphone. In addition, a method of calibration is described that results in a significant improvement in accuracy when measuring high impedance objects on the modified capillary-based system. The method involves carrying out calibration measurements on two different objects whose impedances are well-known theoretically. The benefits of performing two calibration measurements (as opposed to the one calibration measurement that has been traditionally used) are demonstrated experimentally through input impedance measurements on two test objects and a Boosey and Hawkes oboe. © S. Hirzel Verlag · EAA.
Resumo:
Nitrofuran metabolite residues AOZ, AMOZ, AHD and SEM were detected at parts per million concentrations in retina of pigs fed therapeutic doses of nitrofuran antibiotics. Discovery of this residue depot may allow widespread technology transfer to laboratories lacking LC-MS/MS thus improving global monitoring of these drugs.
Resumo:
This survey assessed the extent of and satisfaction with collaboration between physicians and nurse practitioners (NPs) working in Ontario long-term care homes. Questionnaires, which included the Measure of Current Collaboration and Provider Satisfaction with Current Collaboration instruments, were mailed to NPs and physicians with whom the NP most frequently worked. The 14 matched-pairs of NPs and physicians reported similar levels of collaboration; however, physicians were significantly more satisfied with collaboration than were NPs (z = -2.67, p = 0.008). The majority of physicians (85%) and NPs (86%) indicated that collaboration was occurring, and 96 per cent of physicians and 79 per cent of NPs were satisfied with their collaboration. About one third of physicians reported that the NP had a negative effect on their income, but their satisfaction with collaboration did not differ from those who reported a positive effect. Overall, these physicians and NPs collaborate in delivering care and are satisfied with their collaboration. © 2009 Canadian Association on Gerontology.
Resumo:
Researchers and clinicians have experienced substantial difficulties locating measures that are suitable for use within palliative care settings. This article details the psychometric properties of nine instruments designed to assess the following psychosocial characteristics of family caregivers: competence, mastery, self-efficacy, burden, optimism, preparedness, social support, rewards, and mutuality. Results are based on the responses of 106 primary family caregivers caring for relatives dying of cancer. Principal components extraction with varimax rotation was used to explore the underlying structure of each measure. Following the exclusion of complex variables, suggested components for most measures comprised relatively homogenous items, which were good to excellent measures of each component. Some components comprised only two items; however, Cronbach's alphas typically indicated moderate to high levels of internal consistency. Overall, the results of this study suggest that most of the measures analyzed, excepting the mastery and mutuality scales, can be recommended to examine the family caregiver experience and test supportive interventions.