990 resultados para material practices
Resumo:
O objetivo deste estudo foi a validação do conteúdo e a compreensibilidade do Material informativo a pacientes em tratamento quimioterápico e aos seus familiares. Para avaliar se as informações do material informativo sobre câncer, quimioterapia, cuidados com paciente, alimentação e medicação eram suficientemente esclarecedoras e claras, foram contatados 23 cuidadores principais de crianças com câncer. Os entrevistados responderam a um questionário contendo nove questões fechadas e uma aberta. A avaliação foi positiva e as informações foram consideradas esclarecedoras pela maioria dos participantes, dos quais alguns contribuíram com sugestões, que foram acrescentadas ao material. Após completa finalização, o material servirá como apoio aos pacientes com câncer e aos familiares. O intuito do material é melhorar a qualidade de assistência de enfermagem, pois acredita-se que, quando os responsáveis estão orientados sobre a maneira mais adequada de cuidar, a adesão do paciente ao tratamento aumenta, a informação os torna mais seguros, e colabora-se para o sucesso do tratamento.
Resumo:
Various compositions of synthetic calcium phosphates (CaP) have been proposed and their use has considerably increased over the past decades. Besides differences in physico-chemical properties, resorption and osseointegration, artificial CaP bone graft might differ in their resistance against biofilm formation. We investigated standardised cylinders of 5 different CaP bone grafts (cyclOS, chronOS (both β-TCP (tricalcium phosphate)), dicalcium phosphate (DCP), calcium-deficient hydroxyapatite (CDHA) and α-TCP). Various physico-chemical characterisations e.g., geometrical density, porosity, and specific surface area were investigated. Biofilm formation was carried out in tryptic soy broth (TSB) and human serum (SE) using Staphylococcus aureus (ATCC 29213) and S. epidermidis RP62A (ATCC 35984). The amount of biofilm was analysed by an established protocol using sonication and microcalorimetry. Physico-chemical characterisation showed marked differences concerning macro- and micropore size, specific surface area and porosity accessible to bacteria between the 5 scaffolds. Biofilm formation was found on all scaffolds and was comparable for α-TCP, chronOS, CDHA and DCP at corresponding time points when the scaffolds were incubated with the same germ and/or growth media, but much lower for cyclOS. This is peculiar because cyclOS had an intermediate porosity, mean pore size, specific surface area, and porosity accessible to bacteria. Our results suggest that biofilm formation is not influenced by a single physico-chemical parameter alone but is a multi-step process influenced by several factors in parallel. Transfer from in vitro data to clinical situations is difficult; thus, advocating the use of cyclOS scaffolds over the four other CaP bone grafts in clinical situations with a high risk of infection cannot be clearly supported based on our data.
Resumo:
To date, state-of-the-art seismic material parameter estimates from multi-component sea-bed seismic data are based on the assumption that the sea-bed consists of a fully elastic half-space. In reality, however, the shallow sea-bed generally consists of soft, unconsolidated sediments that are characterized by strong to very strong seismic attenuation. To explore the potential implications, we apply a state-of-the-art elastic decomposition algorithm to synthetic data for a range of canonical sea-bed models consisting of a viscoelastic half-space of varying attenuation. We find that in the presence of strong seismic attenuation, as quantified by Q-values of 10 or less, significant errors arise in the conventional elastic estimation of seismic properties. Tests on synthetic data indicate that these errors can be largely avoided by accounting for the inherent attenuation of the seafloor when estimating the seismic parameters. This can be achieved by replacing the real-valued expressions for the elastic moduli in the governing equations in the parameter estimation by their complex-valued viscoelastic equivalents. The practical application of our parameter procedure yields realistic estimates of the elastic seismic material properties of the shallow sea-bed, while the corresponding Q-estimates seem to be biased towards too low values, particularly for S-waves. Given that the estimation of inelastic material parameters is notoriously difficult, particularly in the immediate vicinity of the sea-bed, this is expected to be of interest and importance for civil and ocean engineering purposes.
Resumo:
O acidente ocupacional por material perfurocortante constitui uma preocupação para instituições e trabalhadores de saúde, devido à elevada frequência de procedimentos invasivos, e a dinâmica do trabalho. Objetivou-se identificar a incidência dos acidentes, dos materiais envolvidos, dos fatores contribuintes e das condutas tomadas pós-acidente. Participaram de um estudo transversal 127 funcionários do centro cirúrgico. Registraram-se 23,6% (30/127) acidentes com envolvimento de agulha (73,3%), lâmina de bisturi (6,7%) e eletrocautério (6,7%). Os fatores contribuintes para o acidente foram: falta de atenção (36,7%), más condições de trabalho (20,0%), descuido (13,3%), pressa (10%) e acaso/azar (6,7%). Somente 15,4% dos acidentes foram registrados. A subnotificação deveu-se à irrelevância do acidente, desconhecimento do protocolo de rotina, displicência e sobrecarga de trabalho. Os resultados alertam para a importância de se implementar estratégias para adoção/revisão de protocolos pós-acidentes, visando a redução dos acidentes e de sua subnotificação.
Resumo:
The purpose of this research project is to study current practices in enhancing visibility and protection of highway maintenance vehicles involved in moving operations such as snow removal and shoulder operations, crack sealing, and pothole patching. The results will enable the maintenance staff to adequately assess the applicability and impact of each strategy to their use and budget. The report’s literature review chapter examines the use of maintenance vehicle warning lights, retroreflective tapes, shadow vehicles and truck-mounted attenuators, and advanced vehicle control systems, as well as other practices to improve visibility for both snowplow operators and vehicles. The chapter concludes that the Manual on Uniform Traffic Control Devices does not specify what color or kind of warning lights to use. Thus, a wide variety of lights are being used on maintenance vehicles. The study of the relevant literatures also suggests that there are no clear guidelines for moving work zones at this time. Two types of surveys were conducted to determine current practices to improve visibility and safety in moving work zones across the country and in the state of Iowa. In the first survey of state departments of transportation, most indicated using amber warning lights on their maintenance vehicles. Almost all the responding states indicated using some form of reflective material on their vehicles to make them more visible. Most participating states indicated that the color of their vehicles is orange. Most states indicated using more warning lights on snow removal vehicles than their other maintenance vehicles. All responding state agencies indicated using shadow vehicles and/or truck-mounted attenuators during their moving operations. In the second survey of Iowa counties, most indicated using very similar traffic control and warning devices during their granular road maintenance and snow removal operations. Mounting warning signs and rotating or strobe lights on the rear of maintenance vehicles is common for Iowa counties. The most common warning devices used during the counties’ snow removal operations are reflective tapes, warning flags, strobe lights, and auxiliary headlamps.
Resumo:
Esta pesquisa exploratória descritiva, na modalidade de estudo de caso, teve por objetivo a aplicação do Custeio Baseado em Atividades (ABC) em Centro de Material e Esterilização (CME) de um hospital de ensino de capacidade extra. A coleta de dados ocorreu durante o ano de 2006, utilizando-se as técnicas de análise documental e observação direta não participante. A análise de processos possibilitou o conhecimento dos custos do ciclo/carga de desinfecção química ($9.95) e física ($12.63), e esterilização por vapor saturado sob pressão ($31.37) e por vapor de Baixa Temperatura e Formaldeído Gasoso ($255.28). As informações geradas pelo ABC resultaram na compreensão do processo gerador de custos e forneceram base para a mensuração de desempenho e melhorias de processos do CME.
Resumo:
Bridge approach settlement and the formation of the bump is a common problem in Iowa that draws upon considerable resources for maintenance and creates a negative perception in the minds of transportation users. This research study was undertaken to investigate bridge approach problems and develop new concepts for design, construction, and maintenance that will reduce this costly problem. As a result of the research described in this report, the following changes are suggested for implementation on a pilot test basis: • Use porous backfill behind the abutment and/or geocomposite drainage systems to improve drainage capacity and reduce erosion around the abutment. • On a pilot basis, connect the approach slab to the bridge abutment. Change the expansion joint at the bridge to a construction joint of 2 inch. Use a more effective joint sealing system at the CF joint. Change the abutment wall rebar from #5 to #7 for non-integral abutments. • For bridges with soft foundation or embankment soils, implement practices of better compaction, preloading, ground improvement, soil removal and replacement, or soil reinforcement that reduce time-dependent post construction settlements.
Resumo:
Designs of CSCL (Computer Supported Collaborative Learning)activities should be flexible, effective and customizable toparticular learning situations. On the other hand, structureddesigns aim to create favourable conditions for learning. Thus,this paper proposes the collection of representative and broadlyaccepted (best practices) structuring techniques in collaborative learning. With the aim of establishing a conceptual common ground among collaborative learning practitioners and softwaredevelopers, and reusing the expertise that best practicesrepresent, the paper also proposes the formulation of these techniques as patterns: the so-called CLFPs (CollaborativeLearning Flow Patterns). To formalize these patterns, we havechosen the educational modelling language IMS Learning Design (IMS-LD). IMS-LD has the capability to specify many of the collaborative characteristics of the CLFPs. Nevertheless, the language bears limited capability for describing the services that mediate interactions within a learning activity and the specification of temporal or rotated roles. This analysis isdiscussed in the paper, as well as our approaches towards thedevelopment of a system capable of integrating tools using IMSLDscripts and a CLFP-based Learning Design authoring tool.
Resumo:
This guidebook has been published by the University of Northern Iowa New Iowans Program to assist employers, managers and supervisors with the unique challenges associated with hiring, training and integrating immigrant and refugee workers. Its purpose is to promote proactive engagement of newcomer workers to assure the vitality of Iowa businesses. Successful integration of immigrants and refugees in our workplaces and communities is essential to insure Iowa’s long-term economic and social health. This book provides essential information for human resource directors, trainers, supervisors and others as they meet the challenges and rewards of hiring immigrants and refugees. Of course, no guidebook can provide simple solutions to complex issues in a great variety if workplaces. This is not a “cookbook” with recipes that provide easy answers to challenges facing every company and worker. All employers are unique and approach problems differently. What works in one company might not work as well in another.
Resumo:
Student guidance is an always desired characteristic in any educational system, butit represents special difficulty if it has to be deployed in an automated way to fulfilsuch needs in a computer supported educational tool. In this paper we explorepossible avenues relying on machine learning techniques, to be included in a nearfuture -in the form of a tutoring navigational tool- in a teleeducation platform -InterMediActor- currently under development. Since no data from that platform isavailable yet, the preliminary experiments presented in this paper are builtinterpreting every subject in the Telecommunications Degree at Universidad CarlosIII de Madrid as an aggregated macro-competence (following the methodologicalconsiderations in InterMediActor), such that marks achieved by students can beused as data for the models, to be replaced in a near future by real data directlymeasured inside InterMediActor. We evaluate the predictability of students qualifications, and we deploy a preventive early detection system -failure alert-, toidentify those students more prone to fail a certain subject such that correctivemeans can be deployed with sufficient anticipation.
Resumo:
Intersectionality has been adopted as the preferred term to refer to and to analyze multiple axes of oppression in feminist theory. However, less research examines if this term, and the political analyses it carries, has been adopted by women's rights organizations in various contexts and to what effect. Drawing on interviews with activists working in a variety of women's rights organizations in France and Canada, I show that intersectionality is only one of the repertoires that a women's rights organization might use to analyze the social experience and the political interests of women situated at the intersection of several axes of domination. I propose a typology of four repertoires that activists use to reflect on intersectionality and inclusiveness. Drawing on a quantitative and qualitative analysis of the interview data, I show that hegemonic repertoires about racial or religious identity in one national context shape the way activists and organizations understand intersectionality and its challenges. The identity of organizations, as well as their main function (advocacy or providing service), also shape their understanding of intersectional issues.
Resumo:
Bridge approach settlement and the formation of the bump is a common problem in Iowa that draws upon considerable resources for maintenance and creates a negative perception in the minds of transportation users. This research study was undertaken to investigate bridge approach problems and develop new concepts for design, construction, and maintenance that will reduce this costly problem. As a result of the research described in this report, the following changes are suggested for implementation on a pilot test basis: • Use porous backfill behind the abutment and/or geocomposite drainage systems to improve drainage capacity and reduce erosion around the abutment. • On a pilot basis, connect the approach slab to the bridge abutment. Change the expansion joint at the bridge to a construction joint of 2 inch. Use a more effective joint sealing system at the CF joint. Change the abutment wall rebar from #5 to #7 for non-integral abutments. • For bridges with soft foundation or embankment soils, implement practices of better compaction, preloading, ground improvement, soil removal and replacement, or soil reinforcement that reduce time-dependent post construction settlements.
Resumo:
Estudo transversal descritivo exploratório que objetivou analisar forças impulsoras e restritivas para trabalho em equipe em um Centro de Material e Esterilização (CME) de um hospital escola, a partir de aproximação da Teoria de Campo de Kurt Lewin, em Goiânia, Goiás. Participaram 35 profissionais, que responderam a um questionário autoaplicável, baseado na referida teoria, que prevê que situações grupais são permeadas por forças que mobilizam positiva ou negativamente seus movimentos e dizem respeito ao envolvimento do sujeito (Eu), a interação do grupo (Outro) e ao ambiente de trabalho (Ambiente). Foi utilizada análise de conteúdo no tratamento dos dados distribuídos nas dimensões predefinidas. Os resultados consolidaram 1.990 registros, categorizados como maioria (59,3%) de forças impulsoras, predominantes na dimensão Eu. Nas dimensões Outro e Ambiente observou-se equilíbrio entre as forças. O delineamento do campo de forças permitiu uma visão objetiva, concreta das limitações, potenciais da equipe estudada e possibilidades para promover mudanças.
Resumo:
Recommendations and laws do not always contain specific and clear provisions on the use of cadaveric material in research, and even more rarely do they address explicitly the ethical issues related to research on material obtained during forensic autopsy. In this article we analyse existing legal frameworks in Europe by comparing the legal provisions in 2 European Countries which are member states of the Council of Europe, the UK and Switzerland. They were chosen because they have distinct legal frameworks that make comparisons interesting. In addition, the detailed laws of the UK and a specific law project and national ethical recommendations in Switzerland permit us to define more clearly the legal range of options for researchers using cadaveric material obtained during forensic investigations. The Human Tissue Act 2004 in England, Wales and Northern Ireland, its Scottish equivalent with the same title (2006) and the national ethical guidelines in Switzerland all require consent from the deceased person, an appropriate relative or a person with power of attorney for healthcare decisions before cadaveric biological material can be obtained and used for research. However, if the purpose of the autopsy is purely forensic, no such authorization will be sought to carry out the autopsy and related analyses, which might include genetic testing. In order to be allowed to carry out future research projects, families need to be approached for informed consent, unless the deceased person had left written directives including permission to use his or her tissues for research.
Resumo:
During the last decade, argumentation has attracted growing attention as a means to elicit processes (linguistic, logical, dialogical, psychological, etc.) that can sustain or provoke reasoning and learning. Constituting an important dimension of daily life and of professional activities, argumentation plays a special role in democracies and is at the heart of philosophical reasoning and scientific inquiry. Argumentation, as such, requires specific intellectual and social skills. Hence, argumentation will have an increasing importance in education, both because it is a critical competence that has to be learned, and because argumentation can be used to foster learning in philosophy, history, sciences and in many other domains. Argumentation and Education answers these and other questions by providing both theoretical backgrounds, in psychology, education and theory of argumentation, and concrete examples of experiments and results in school contexts in a range of domains. It reports on existing innovative practices in education settings at various levels.