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Manual correction of semi-automatic three-dimensional echocardiography is needed for right ventricular assessment in adults; validation with cardiac magnetic resonance
Ellen Ostenfeld, Marcus Carlsson, Kambiz Shahgaldi, Anders Roijer, Johan Holm
Cardiovascular Ultrasound , 2012, DOI: 10.1186/1476-7120-10-1
Abstract: 62 non-selected patients were examined with 3DE (Sonos 7500 and iE33) and with CMR (1.5T). Endocardial RV contours of 3DE-images were semi-automatically assessed and manually corrected in all patients. End-diastolic (EDV), end-systolic (ESV) volumes, stroke volume (SV) and ejection fraction (EF) were computed.53 patients (85%) had 3DE-images feasible for examination. Correlation coefficients and Bland Altman biases between 3DE with manual correction and CMR were r = 0.78, -22 ± 27 mL for EDV, r = 0.83, -7 ± 16 mL for ESV, r = 0.60, -12 ± 18 mL for SV and r = 0.60, -2 ± 8% for EF (p < 0.001 for all r-values). Without manual correction r-values were 0.77, 0.77, 0.70 and 0.49 for EDV, ESV, SV and EF, respectively (p < 0.001 for all r-values) and biases were larger for EDV, SV and EF (-32 ± 26 mL, -21 ± 15 mL and - 6 ± 9%, p ≤ 0.01 for all) compared to manual correction.Manual correction of the 3DE semi-automatic RV delineation decreases the bias and is needed for acceptable clinical accuracy. 3DE is highly feasible for visualizing the RV in an adult clinical setting.Assessment of the right ventricular volumes and function is of great importance in the diagnosis of various heart diseases e.g. pulmonary hypertension and congenital heart disease [1-3], for the choice of therapeutical strategies [4] and not least of prognostic value [5-7].Two-dimensional echocardiography (2DE) is the most commonly used clinical imaging modality in the evaluation of the right ventricle (RV). The complex geometrical structure of the RV with both a crescent shape and an outspread inflow and outflow tract requires a combination of several different scan planes for estimation of size and function with 2DE. M-Mode and tissue Doppler imaging of the free lateral wall of the RV are measurements in one point and are used as surrogates for the RV function. Hence, current echocardiographic techniques are not suitable for calculating right ventricular volumes and function accurately with a simple algor
Passing the Buck, or Thinking about Experience? Conditions for Professional Development among Teachers in a Norwegian Middle School  [PDF]
Ellen Ramvi
Open Journal of Social Sciences (JSS) , 2017, DOI: 10.4236/jss.2017.52014
Abstract: This paper uses psychoanalytic ideas to explore obstacles and conditions for learning from experience among teachers. In specific, this is about consequences of failure in relationships. A particular situation that happened during an ethnographic study in a middle school in Norway is used to get as close as possible to a teacher’s feelings and perceptions of a frustrating situation. The situation is followed up to understand how the individual teacher tried to deal with the problem and how her colleagues and the school management tried to support and help her. Interpreting the situation to involve violation of all dimensions of the teacher’s subjectivity (personal, professional and cultural), the problem seems to be too complex to deal with in the school organization. It seems as if teachers and leadership unconsciously avoid unbearable feelings, with the consequence that violation of the teachers is not recognised, and thus not possible to learn from. Problems were repeated rather than understood.
Survival of patients with colon and rectal cancer in central and northern Denmark, 1998–2009
Ostenfeld EB,Erichsen R,Iversen LH,Gandrup P
Clinical Epidemiology , 2011,
Abstract: Eva B Ostenfeld1, Rune Erichsen1, Lene H Iversen1,2, Per Gandrup3, Mette N rgaard1, Jacob Jacobsen11Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark; 2Department of Surgery P, Aarhus University Hospital, Aarhus, Denmark; 3Department of Surgery A, Aarhus University Hospital, Aalborg, DenmarkObjective: The prognosis for colon and rectal cancer has improved in Denmark over the past decades but is still poor compared with that in our neighboring countries. We conducted this population-based study to monitor recent trends in colon and rectal cancer survival in the central and northern regions of Denmark.Material and methods: Using the Danish National Registry of Patients, we identified 9412 patients with an incident diagnosis of colon cancer and 5685 patients diagnosed with rectal cancer between 1998 and 2009. We determined survival, and used Cox proportional hazard regression analysis to compare mortality over time, adjusting for age and gender. Among surgically treated patients, we computed 30-day mortality and corresponding mortality rate ratios (MRRs).Results: The annual numbers of colon and rectal cancer increased from 1998 through 2009. For colon cancer, 1-year survival improved from 65% to 70%, and 5-year survival improved from 37% to 43%. For rectal cancer, 1-year survival improved from 73% to 78%, and 5-year survival improved from 39% to 47%. Men aged 80+ showed most pronounced improvements. The 1- and 5-year adjusted MRRs decreased: for colon cancer 0.83 (95% confidence interval CI: 0.76–0.92) and 0.84 (95% CI: 0.78–0.90) respectively; for rectal cancer 0.79 (95% CI: 0.68–0.91) and 0.81 (95% CI: 0.73–0.89) respectively. The 30-day postoperative mortality after resection also declined over the study period. Compared with 1998–2000 the 30-day MRRs in 2007–2009 were 0.68 (95% CI: 0.53–0.87) for colon cancer and 0.59 (95% CI: 0.37–0.96) for rectal cancer.Conclusion: The survival after colon and rectal cancer has improved in central and northern Denmark during the 1998–2009 period, as well as the 30-day postoperative mortality.Keywords: neoplasms, survival, epidemiology, colorectal cancer
E-mentoring as a Critical E-learning Approach: The Impact of Social Presence on E-mentoring  [PDF]
Ellen A. Ensher
Communications and Network (CN) , 2013, DOI: 10.4236/cn.2013.53B1001
Abstract: One important form of e-learning is e-mentoring. Virtual mentoring can occur within the context of formal organiza- tional programs or develop spontaneously between individuals online. While e-mentoring is burgeoning as a practice, theoretical research related to this important phenomenon has been limited. The purpose of this paper is to suggest that social presence theory presents a useful conceptual framework for understanding mentors’ willingness to participate in e-mentoring relationship and on their satisfaction. In sum, mentoring relationships that offer a blended approach with both high and low social presence forms of computer-mediated-communication (CMC) will be more satisfying to men- tors than those with low social presence CMC forms only. Implications for research and practice are discussed.
The design, development and evaluation of a self-instructional module for nursing practice standards  [PDF]
June Anonson, Mary Ellen Walker
Open Journal of Nursing (OJN) , 2013, DOI: 10.4236/ojn.2013.38073

The purpose of this research was to improve nursing professionals’ understanding of the important link to safe, competent, and ethical practices that Nursing Practice Standards (NPS) serve. This research on NPS may improve the scope and comprehensiveness by which the Standards are integrated with clinical, educational, administrative, and research-based nursing practices. This research was unique in that it includes nurses in developing NPS. The method by which this study was done involved sixteen practicing nurses and seven instructional design experts from Alberta, Canada participating in designing, developing, and evaluating a NPS module. Nursing practice standards are a vital aspect of performing safe, efficient and effective patient care. The manner in which Nursing Standard Practices are presented and taught will directly influence a nurse’s ability to understand the value of NPS and successfully incorporate NPS into practice.

Information scanning – keeping in touch with best practice in breastfeeding
Ellen McIntyre
International Breastfeeding Journal , 2006, DOI: 10.1186/1746-4358-1-15
Abstract: There is so much we still need to know about how best to enable mothers to successfully breastfeed. In addition, we are all time-poor in an ever increasing information-rich environment. This paper describes some of the methods practitioners (those directly involved with helping mothers) can use to scan the environment for up-to-date information about best practice in breastfeeding. By keeping in touch – with other practitioners and International Board Certified Lactation Consultants (IBCLC), with researchers, with decision makers, and with research findings – practitioners can ensure they help mothers most effectively.Attend relevant conferences, seminars and workshops in your area but also once in a while go to a conference in another state or region or even overseas. While there is an added cost, it is worthwhile broadening your horizons beyond your local area. While at conferences, make the most of the opportunity and network with other delegates. To keep informed about conferences, join your local professional lactation organization and the International Lactation Consultants Association (ILCA) [1]. Check their websites as well as the International Board of Lactation Consultants Examiners (IBLCE) website regularly to keep up to date with issues pertinent to this profession [2]. Their links are also worth viewing. You might also organize to visit other IBCLCs at their workplaces.Lactnet, an email list of health professionals and others interested in discussing issues of breastfeeding contains a wealth of information [3]. Although it can be very time consuming to read the emails submitted by those among the 3300 plus subscribers, it does have an archival facility to assist with searching specific topics.As mentioned above, attend conferences but also make the effort to talk to the researchers who are presenting their work. If you have read some of their work, send them an email (most papers list author contact details) if you wish to know more or wish to share you
Viruses in reptiles
Ellen Ariel
Veterinary Research , 2011, DOI: 10.1186/1297-9716-42-100
Abstract: 1. Introduction2. Methods for working with reptilian viruses3. Reptilian viruses described by virus families3.1. Herpesviridae3.2. Iridoviridae3.2.1 Ranavirus3.2.2 Erythrocytic virus3.2.3 Iridovirus3.3. Poxviridae3.4. Adenoviridae3.5. Papillomaviridae3.6. Parvoviridae3.7. Reoviridae3.8. Retroviridae and inclusion body disease of Boid snakes3.9. Arboviruses3.9.1. Flaviviridae3.9.2. Togaviridae3.10. Caliciviridae3.11. Picornaviridae3.12. Paramyxoviridae4. Summary5. Acknowledgements6. Competing interests7. ReferencesThe etiology of reptilian viral diseases can be attributed to a wide range of viruses occurring across different genera and families. Thirty to forty years ago, studies of viruses in reptiles focused mainly on the zoonotic potential of arboviruses in reptiles and much effort went into surveys and challenge trials of a range of reptiles with eastern and western equine encephalitis as well as Japanese encephalitis viruses [1-3]. In the past decade, outbreaks of infection with West Nile virus in human populations and in farmed alligators in the USA have seen the research emphasis placed on the issue of reptiles, particularly crocodiles and alligators, being susceptible to, and reservoirs for, this serious zoonotic disease [4-7]. Although there are many recognised reptilian viruses, the evidence for those being primary pathogens is relatively limited. Transmission studies establishing pathogenicity and cofactors are likewise scarce, possibly due to the relatively low commercial importance of reptiles, difficulties with the availability of animals and permits for statistically sound experiments, difficulties with housing of reptiles in an experimental setting or the inability to propagate some viruses in cell culture to sufficient titres for transmission studies. Viruses as causes of direct loss of threatened species, such as the chelonid fibropapilloma associated herpesvirus and ranaviruses in farmed and wild tortoises and turtles, have re-focused attention bac
Cambios de tiempo y espacio/cambios sociales, bajo el impacto de la modernización
Woortmann, Ellen;
Revista Estudos Feministas , 2007, DOI: 10.1590/S0104-026X2007000200015
Abstract: the aim of this article is to discuss the relations between space, time and gender in the context of fishing communities of northeastern brazil. centered on the point of view of women, it calls attention to the negative changes that took place in the female universe as a result of modernization.
Life in Londinium: Review of Roman Finds Group meeting, 30th September 1996
Ellen Swift
Papers from the Institute of Archaeology , 1997, DOI: 10.5334/pia.107
‘Paradise by the Dashboard Light’: Working with a Simple PDCA Cycle at Avans University of Applied Sciences
Ellen Simons
Liber Quarterly : The Journal of European Research Libraries , 2012,
Abstract: The intention of this paper is to share some of our experiences with implementing a simple ‘Plan Do Check Act’ (PDCA) cycle within our Learning and Innovation Centre (LIC). The PDCA-cycle is a never ending cycle designed to improve quality and efficiency. The PDCA as developed within LIC is not something completely new or innovative. But making use of the PDCA cycle enables us to link processes in a more effective way than before. In the current times of budget cuts the outcomes proved to be very useful. The paper is divided in three parts. First some basic background information is given about Avans University. Secondly the implementation of the PDCA cycle is described in more detail with a special focus on the planning and checking elements of the PDCA cycle. Finally, some users are quoted who judge the PDCA cycle. Some recommendations based on two years’ experience are given at the end of this paper.
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