1,182 research outputs found

    e-Delphi Technique in Postgraduate Registered Nursing Education and Competency Development: A Scoping Review

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    Background: It is common for nursing programs in Canada to hire part-time clinical instructors (CIs) to teach the practical components of curricula. Although experts in their field, these Registered Nurses (RNs) don’t have any formal preparation in education. Additionally, there are no current established competencies for CIs in Canada. This void in the Canadian literature warrants a search of competency development using the e-Delphi technique. The e-Delphi technique is a commonly used surveying technique for competency development in healthcare. Objective: To understand the extent, range, and nature of evidence of the use of the e-Delphi technique and critically appraise its use in postgraduate nursing education and nursing competency development to establish the feasibility of application to clinical nurse educator competency (CNEC) development in Canada. Methods: Two independent researchers conducted a scoping review to determine the extent, range, and nature of evidence of the use of the e-Delphi technique and critically appraise its use in postgraduate nursing education and nursing competency development. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) and the Joanna Briggs Institute Reviewers’ Manual were used to guide the review. Results: The main components of e-Delphi that were extracted from the literature for review included the purposes of the studies, background of expert panel members, methods of e-Delphi used, reported level of consensus, number of rounds to meet consensus, time between rounds of questions, number of participants and changing participants. The purposes of the reviewed studies demonstrated that e-Delphi is a preferred method for developing or revising competencies for post baccalaureate programs. However, the other key components that were extracted revealed much variation in the use of e-Delphi by researchers. Most importantly, researchers need to ensure they report on the backgrounds of the expert panel members, decrease the time between the survey rounds and avoid introducing new participants in later rounds of the surveys to ensure consistency and methodological rigour of e-Delphi. Conclusion: There are variations in how e-Delphi is used in the literature for competency development, but if the authors are transparent with all phases of the method used, it is evident that it can significantly contribute to the advancement of future CNEC development in Canada. RĂ©sumĂ© Contexte : Il est courant pour les programmes de formation en sciences infirmiĂšres au Canada d’embaucher des formatrices et formateurs cliniques Ă  temps partiel pour enseigner les composantes pratiques des programmes d’études. Bien que spĂ©cialistes dans leur domaine, ces infirmiĂšres et infirmiers ne dĂ©tiennent aucune formation formelle en enseignement. De plus, il n’existe actuellement aucun rĂ©fĂ©rentiel de compĂ©tences Ă©tabli pour les formatrices et formateurs cliniques au Canada. Ce vide dans les Ă©crits canadiens justifie une recherche sur l’élaboration des compĂ©tences liĂ©es Ă  la formation clinique Ă  l’aide de la mĂ©thode e-Delphi, une technique de sondage en ligne frĂ©quemment utilisĂ©e pour nommer et clarifier les compĂ©tences dans le domaine de la santĂ©. Objectif : Comprendre l’étendue, la portĂ©e et la nature des donnĂ©es probantes de l’utilisation de la mĂ©thode e-Delphi et Ă©valuer de maniĂšre critique son utilisation dans la formation aprĂšs l’obtention du grade en sciences infirmiĂšres ainsi que le dĂ©veloppement des compĂ©tences infirmiĂšres afin d’établir la faisabilitĂ© de l’application pour l’élaboration des compĂ©tences des formatrices et formateurs cliniques au Canada. MĂ©thodes : Deux chercheuses indĂ©pendantes ont menĂ© une revue de la portĂ©e pour dĂ©terminer l’étendue, l’éventail et la nature des donnĂ©es probantes de l’utilisation de la mĂ©thode e-Delphi et Ă©valuer de maniĂšre critique son utilisation dans la formation aprĂšs l’obtention du grade en sciences infirmiĂšres et le dĂ©veloppement des compĂ©tences infirmiĂšres. Le Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR]) et le Joanna Briggs Institute Reviewers’ Manual ont Ă©tĂ© utilisĂ©s pour guider cette revue. RĂ©sultats : Les principales composantes de la mĂ©thode e-Delphi qui ont Ă©tĂ© extraites de la littĂ©rature pour la revue comprenaient les objectifs des Ă©tudes, les antĂ©cĂ©dents des membres du groupe d’experts, les mĂ©thodes e-Delphi utilisĂ©es, le niveau de consensus rapportĂ©, le nombre de tours pour atteindre le consensus, le temps entre les tours de questions, ainsi que le nombre et les changements de participants. Les objectifs des Ă©tudes examinĂ©es ont dĂ©montrĂ© que la mĂ©thode e-Delphi est privilĂ©giĂ©e pour dĂ©velopper ou rĂ©viser des compĂ©tences pour les programmes post-baccalaurĂ©at. Cependant, les autres composantes clĂ©s extraites ont rĂ©vĂ©lĂ© une grande variation dans l’utilisation de la mĂ©thode e-Delphi par les groupes de recherche. Plus important encore, ces derniers doivent s’assurer de rapporter les antĂ©cĂ©dents des membres du panel d’experts, de rĂ©duire le temps entre les cycles de sondage et d’éviter d’introduire de nouveaux participants dans les cycles ultĂ©rieurs des sondages afin d’assurer la cohĂ©rence et la rigueur mĂ©thodologique de la mĂ©thode e-Delphi. Conclusion : Il existe des variations dans la façon dont la mĂ©thode e-Delphi est utilisĂ©e et rapportĂ©e dans la littĂ©rature pour le dĂ©veloppement des compĂ©tences, mais si il y a transparence Ă  toutes les phases de l’utilisation de la mĂ©thode, il est Ă©vident qu’elle peut contribuer de maniĂšre significative Ă  l’élaboration du futur rĂ©fĂ©rentiel des compĂ©tences des formatrices et formateurs cliniques au Canada

    Los nĂłdulos de Schmorl y sus implicancias en la salud de una poblaciĂłn histĂłrica colonial : (Mendoza, Argentina)

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    Los nĂłdulos de Schmorl (NS) son lesiones que afectan la columna vertebral. Si bien su etiologĂ­a es diversa, han sido interpretados como una lesiĂłn posiblemente asociada con la actividad fĂ­sica. En este trabajo se analiza la prevalencia de NS en cincuenta y dos esqueletos adultos del Área Fundacional de Mendoza correspondientes a los siglos XVII-XIX. Se discute su prevalencia en combinaciĂłn con el desarrollo de osteofitosis marginal segĂșn sexo, edad, sectores socio-econĂłmicos y periodos cronolĂłgicos. Se registrĂł una prevalencia de 21,1% para el total de los esqueletos analizados. Aunque no puede descartarse la incidencia de mĂșltiples factores en el desarrollo de estas lesiones, los resultados sugieren un mayor grado de estrĂ©s mecĂĄnico sobre la columna vertebral en los individuos masculinos y de los sectores mĂĄs pobres de la Mendoza colonial.Schmorl’s nodes (NS) are lesions that affect the spine. Although their etiology is diverse, they have been interpreted as an injury possibly associated with physical activity. In this paper we analyze the prevalence of NS in 52 adult skeletons from the Área Fundacional in Mendoza from the seventeenth to nineteenth century. Its prevalence is discussed in combination with the development of marginal osteophytosis according to sex, age, socio-economic sectors, and chronological periods. A total prevalence of 21.1% was recorded. Although the incidence of multiple factors leading to the development of these lesions cannot be ruled out, the results suggest a greater degree of mechanical stress on the spine in male individuals and the poorer sectors of colonial MendozaFil: Mansegosa, Daniela A.. CONICET (Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas) - Universidad Nacional de CuyoFil: Giannotti, Pablo S.. CONICET (Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas) - Universidad Nacional de Cuy

    Extra dimensions, orthopositronium decay, and stellar cooling

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    In a class of extra dimensional models with a warped metric and a single brane the photon can be localized on the brane by gravity only. An intriguing feature of these models is the possibility of the photon escaping into the extra dimensions. The search for this effect has motivated the present round of precision orthopositronium decay experiments. We point out that in this framework a photon in plasma should be metastable. We consider the astrophysical consequences of this observation, in particular, what it implies for the plasmon decay rate in globular cluster stars and for the core-collapse supernova cooling rate. The resulting bounds on the model parameter exceed the possible reach of orthopositronium experiments by many orders of magnitude.Comment: 13 pages, no figure

    LIMB BODY WALL COMPLEX IN TWO HETEROZYGOTIC TWINS: A CASE REPORT

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    Introdution. Limb-Body Wall Complex (LBWC) is a congenital defect which includes at least two of the following characteristics: abdominal and/or thoracic body wall defects, exencephaly or encephalocoele with or without craniofacial defects (56%) and spinal defects associated with marked vertebral or sacral defects (95%). Case Report. We present a case report of an infant with LBWC, borned by diamniotic twin pregnancy. A prenatal ultrasound reported an healthy fetus and a fetus with multiple malformations. At birth we found a big abdominal wall defect, absence of scrotal sac and testicles, asymmetric chest and no major deformities in craniofacial region. At 2 hours of life, we removed the amniotic sac, we put the stomach and the spleen in the abdominal cavity, which is virtual, and positioned a spring-loaded silo. At 15th day of life we had complete reduction of the intestinal loops and liver and we closed the wall defect with a prosthesis and a cryopreserved skin. The general conditions of the patient, very severe since birth, became progressively worse and he died in the 21st day of life. Discussion. Once the diagnosis is done the physician should offer the parents a therapeutic abortion, and above all, in case they want to carry the pregnancy to term, we need to prepare them to the severity of the malformation and the high probability of death

    Medication management ability in older patients: Time for a reappraisal

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    Background. Adhering to drug regimens is a complex and multidimensional task. Elderly patients usually take an average of seven drugs but most fail to adhere to the prescribed regimen. Several performance-based instruments have been developed to assess a patient\u2019s capacity to manage drugs but with inconsistent results. Aims. The aim of the study was to assess the prevalence of impaired medical management capacity in a sample of the oldest old hospitalized elderly patients and the main clinical factors associated with potential unintentional non-adherence. Methods. Forty-six consecutive patients were enrolled in the geriatric transitional care unit of Ospedale Policlinico San Martino, Genoa, Italy. All patients received an abbreviated comprehensive geriatric assessment and a hand grip assessment for sarcopenia. Patients\u2019 medication management ability was assessed by administering the DRUGS tool 48-74 hours before hospital discharge. Results. The results showed a negative correlation between age and total medication management score. A positive correlation was detected between functional status, cognitive status, and medication management score. Hand grip strength < 9 kg correlated with a significant worsening of medical management capacity. In contrast, multiple morbidities and the mean number of drugs were not associated with the medical management score. Conclusions. This preliminary study indicated that drug management capacity mainly relies on frailty markers, such as functional status, sarcopenia, and cognitive performance. Further studies are warranted to identify a subset of medical parameters that can accurately predict impaired medical management ability early, particularly for highly vulnerable elderly patients

    Thermal-Hydraulic Analysis of Coolant Flow Decrease in Fuel Channels of Smolensk-3 RBMK during GDH Blockage Event

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    One of the transients that have received considerable attention in the safety evaluation of RBMK reactors is the partial break of a group distribution header (GDH). The coolant flow rate blockage in one GDH might lead to excessive heat-up of the pressure tubes and can result in multiple fuel channels (FC) ruptures. In this work, the GDH flow blockage transient has been studied considering the Smolensk-3 RBMK NPP (nuclear power plant). In the RBMK, each GDH distributes coolant to 40–43 FC. To investigate the behavior of each FC belonging to the damaged GDH and to have a more realistic trend, one (affected) GDH has been schematized with its forty-two FC, one by one. The calculations were performed using the 0-D NK (neutron kinetic) model of the RELAP5-3.3 stand-alone code. The results show that, during the event, the mass flow rate is disturbed differently according to the power distribution established for each FC in the schematization. The start time of the oscillations in mass flow rate depends strongly on the attributed power to each FC. It was also observed that, during the event, the fuel channels at higher thermal power values tend to undergo first cladding rupture leaving the reactor to scram and safeguarding all the other FCs connected to the affected GDH

    vitamin C, aging and Alzheimer's disease

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    Accumulating evidence in mice models of accelerated senescence indicates a rescuing role of ascorbic acid in premature aging. Supplementation of ascorbic acid appeared to halt cell growth, oxidative stress, telomere attrition, disorganization of chromatin, and excessive secretion of inflammatory factors, and extend lifespan. Interestingly, ascorbic acid (AA) was also found to positively modulate inflamm-aging and immunosenescence, two hallmarks of biological aging. Moreover, ascorbic acid has been shown to epigenetically regulate genome integrity and stability, indicating a key role of targeted nutrition in healthy aging. Growing in vivo evidence supports the role of ascorbic acid in ameliorating factors linked to Alzheimer’s disease (AD) pathogenesis, although evidence in humans yielded equivocal results. The neuroprotective role of ascorbic acid not only relies on the general free radical trapping, but also on the suppression of pro-inflammatory genes, mitigating neuroinflammation, on the chelation of iron, copper, and zinc, and on the suppression of amyloid-beta peptide (AÎČ) fibrillogenesis. Epidemiological evidence linking diet, one of the most important modifiable lifestyle factors, and risk of Alzheimer's disease is rapidly increasing. Thus, dietary interventions, as a way to epigenetically modulate the human genome, may play a role in the prevention of AD. The present review is aimed at providing an up to date overview of the main biological mechanisms that are associated with ascorbic acid supplementation/bioavailability in the process of aging and Alzheimer’s disease. In addition, we will address new fields of research and future directions.</jats:p

    Origin and destination attachment: study of cultural integration on Twitter

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    The cultural integration of immigrants conditions their overall socio-economic integration as well as natives’ attitudes towards globalisation in general and immigration in particular. At the same time, excessive integration—or assimilation—can be detrimental in that it implies forfeiting one’s ties to the origin country and eventually translates into a loss of diversity (from the viewpoint of host countries) and of global connections (from the viewpoint of both host and home countries). Cultural integration can be described using two dimensions: the preservation of links to the origin country and culture, which we call origin attachment, and the creation of new links together with the adoption of cultural traits from the new residence country, which we call destination attachment. In this paper we introduce a means to quantify these two aspects based on Twitter data. We build origin and destination attachment indices and analyse their possible determinants (e.g., language proximity, distance between countries), also in relation to Hofstede’s cultural dimension scores. The results stress the importance of language: a common language between origin and destination countries favours origin attachment, as does low proficiency in the host language. Common geographical borders seem to favour both origin and destination attachment. Regarding cultural dimensions, larger differences among origin and destination countries in terms of Individualism, Masculinity and Uncertainty appear to favour destination attachment and lower origin attachment
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