13 results on '"Tomasson J"'
Search Results
2. Familial risk of prostate cancer in Iceland
- Author
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ELDON, B. J., JONSSON, E., TOMASSON, J., TRYGGVADOTTIR, L., and TULINIUS, H.
- Published
- 2003
3. Le gisement du Paléolithique moyen de la Côte d'Ossignoux, Vallentigny (Aube)
- Author
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TOMASSON, R. and TOMASSON, J.
- Published
- 1963
4. Adenocarcinoma of the prostate in Iceland: A population-based study of stage, Gleason grade, treatment and long-term survival in males diagnosed between 1983 and 1987
- Author
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Jonsson, E., primary, Sigbjarnarson, H. P., additional, Tomasson, J., additional, Benediktsdottir, K. R., additional, Tryggvadottir, L., additional, Hrafnkelsson, J., additional, Olafsdottir, E. J., additional, Tulinius, H., additional, and Jonasson, J. G., additional
- Published
- 2006
- Full Text
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5. Sulfur isotope systematics in icelandic geothermal systems and influence of seawater circulation at Reykjanes
- Author
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Sakai, H., Gunnlaugsson, E., Tòmasson, J., and Rouse, J.E.
- Published
- 1980
- Full Text
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6. Economic evaluation of Reykjanes thermal brine area, Iceland
- Author
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Tomasson, J
- Published
- 1972
7. Preparation of dental and nursing professionals within Swedish higher education: navigating to confidence in literacies and professional knowledge.
- Author
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Christidis N, Tomasson J, Rataghi A, and Christidis M
- Subjects
- Humans, Sweden, Male, Female, Adult, Education, Dental, Dentists psychology, Education, Nursing, Attitude of Health Personnel, Literacy
- Abstract
Background: The professional education of dentists and nurses includes literacy, academic and professional literacy, and professional knowledge. These have a reciprocal relationship and contribute to the development of students and professionals. However, this is an area in need of further exploration. Therefore, this study aimed to investigate dentists' and nurses' experiences of academic and professional literacy and professional knowledge at the time of their graduation, and five years into their profession., Methods: The material consisted of an evaluation distributed twice to dentists and nurses. The first time was immediately after graduation (degree evaluation), and the second time was five years after graduation (alum evaluation). Approximately 30% of the dentists and the nurses responded both times. We analyzed the data using non-parametrical methods., Results: Upon graduation, the dentists scored high in academic and professional literacy and knowledge. Five years into the profession, dentists reported experiencing challenges with communication in English and tasks related to equitable treatment and equal rights. Nurses followed a similar pattern as the dentists. Still, by graduation, the newly graduated nurses expressed concerns about communication in English, and promoting sustainable development within their profession. The challenges persisted five years into their profession, particularly in areas such as communication in English and sustainable development, as well as work related to equitable treatment and equal rights., Conclusions: The level of confidence and perception of a sufficient degree of knowledge regarding academic literacy, professional literacy, and professional knowledge is higher at the time of graduation in both professions compared to five years into the profession, where there is a decrease in areas concerning work related to equitability, and equality, and for dentists also in communication in English. Furthermore, nurses had a constant low confidence rating in both evaluations concerning sustainable development and communication in English. This indicates that targeted and continuous professional development is crucial to address these challenges and to bridge the gap between the knowledge and confidence levels at graduation and the evolving demands of professional practice over time. Thus, when reconstructing the overall curriculum in professional educations it is of great importance to provide tools to enhance future professional development rather than the perception of that they can rely solely on their education at graduation time., Competing Interests: Declarations. Ethics approval and consent to participate: The project was approved by the Swedish Ethical Review Authority (Dnr: 2022-04816-01). These two evaluations are the regular ones administered to all students at Karolinska Institutet every year at graduation and every fourth year to the professionals five year in their profession. They are not mandatory to complete, there is no personal data in the evaluations, and they are completely anonymous. By responding to these evaluations, the students and health professionals give their informed consent to allow the responses to be used for research purposes and for means of quality assessments and improvements of the educations. This means that there was no risk of harming any participant or revealing any information concerning any specific participant. To clarify, data comprised only the answers to the questions in the evaluation. Thus, the risk was very low in relation to what could be gained, which was providing knowledge and feedback to curriculum work concerning academic and professional literacy in professional higher education in dentistry and nursing. Consent for publication: All authors read and approved the final version manuscript. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
8. Non-inhibitory levels of oxygen during cultivation increase freeze-drying stress tolerance in Limosilactobacillus reuteri DSM 17938.
- Author
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Rao NS, Ermann Lundberg L, Tomasson J, Tullberg C, Brink DP, Palmkron SB, van Niel EWJ, Håkansson S, and Carlquist M
- Abstract
The physiological effects of oxygen on Limosilactobacillus reuteri DSM 17938 during cultivation and the ensuing properties of the freeze-dried probiotic product was investigated. On-line flow cytometry and k -means clustering gating was used to follow growth and viability in real time during cultivation. The bacterium tolerated aeration at 500 mL/min, with a growth rate of 0.74 ± 0.13 h
-1 which demonstrated that low levels of oxygen did not influence the growth kinetics of the bacterium. Modulation of the redox metabolism was, however, seen already at non-inhibitory oxygen levels by 1.5-fold higher production of acetate and 1.5-fold lower ethanol production. A significantly higher survival rate in the freeze-dried product was observed for cells cultivated in presence of oxygen compared to absence of oxygen (61.8% ± 2.4% vs. 11.5% ± 4.3%), coinciding with a higher degree of unsaturated fatty acids (UFA:SFA ratio of 10 for air sparged vs. 3.59 for N2 sparged conditions.). Oxygen also resulted in improved bile tolerance and boosted 5'nucleotidase activity (370 U/L vs. 240 U/L in N2 sparged conditions) but lower tolerance to acidic conditions compared bacteria grown under complete anaerobic conditions which survived up to 90 min of exposure at pH 2. Overall, our results indicate the controlled supply of oxygen during production may be used as means for probiotic activity optimization of L. reuteri DSM 17938., Competing Interests: LE, JT, and SH were employed by BioGaia AB. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Rao, Ermann Lundberg, Tomasson, Tullberg, Brink, Palmkron, van Niel, Håkansson and Carlquist.)- Published
- 2023
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9. Evaluation of pediatric near-infrared cerebral oximeter for cardiac disease.
- Author
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Kreeger RN, Ramamoorthy C, Nicolson SC, Ames WA, Hirsch R, Peng LF, Glatz AC, Hill KD, Hoffman J, Tomasson J, and Kurth CD
- Subjects
- Calibration, Child, Child, Preschool, Female, Humans, Infant, Infant, Newborn, Male, Oximetry instrumentation, Heart Defects, Congenital complications, Heart Diseases complications, Heart Diseases congenital, Hypoxia-Ischemia, Brain diagnosis, Hypoxia-Ischemia, Brain etiology, Oximetry methods, Spectroscopy, Near-Infrared
- Abstract
Background: Cerebral hypoxia-ischemia remains a complication in children with congenital heart disease. Near-infrared spectroscopy can be utilized at the bedside to detect cerebral hypoxia-ischemia. This study aimed to calibrate and validate an advanced technology near-infrared cerebral oximeter for use in children with congenital heart disease., Methods: After institutional review board approval and parental consent, 100 children less than 12 years and less than 40 kg were enrolled. Phase I (calibration) measured arterial and jugular venous saturation (SaO(2), SjO(2)) by co-oximetry simultaneously with device signals to calibrate an algorithm to determine regional cerebral saturation against a weighted average cerebral saturation (0.7 SjO(2) + 0.3 SaO(2)). Phase II (validation) evaluated regional cerebral saturation from the algorithm against the weighted average cerebral saturation by correlation, bias, precision, and A(Root Mean Square) assessed by linear regression and Bland-Altman analysis., Results: Of 100 patients, 86 were evaluable consisting of 7 neonates, 44 infants, and 35 children of whom 55% were female, 79% Caucasian, and 41% with cyanotic disease. The SaO(2) and regional cerebral saturation ranged from 34% to 100% and 34% to 91%, respectively. There were no significant differences in subject characteristics between phases. For the entire cohort, A(RMS), bias, precision, and correlation coefficient were 5.4%, 0.5%, 5.39%, and 0.88, respectively. Age, skin color, and hematocrit did not affect these values., Conclusions: This cerebral oximeter accurately measures the absolute value of cerebral saturation in children over a wide range of oxygenation and subject characteristics, offering advantages in assessment of cerebral hypoxia-ischemia in congenital heart disease., (Copyright © 2012 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.)
- Published
- 2012
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10. Intubation bougie dissection of tracheal mucosa and intratracheal airway obstruction.
- Author
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Arndt GA, Cambray AJ, and Tomasson J
- Subjects
- Airway Obstruction etiology, Cricoid Cartilage surgery, Female, Humans, Intubation, Intratracheal adverse effects, Middle Aged, Thyroid Cartilage surgery, Intubation, Intratracheal instrumentation, Trachea injuries
- Abstract
Intubation bougies are commonly used to aid in intubation when an optimal view of the larynx is not obtained. We describe a case of tracheal perforation using a disposable intubation bougie resulting in a complete intratracheal airway obstruction relieved by cricothyrotomy. Disposable intubation bougies may have mechanical properties that differ from their nondisposable counterparts making complications more likely.
- Published
- 2008
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11. Classic intermittent claudication is an uncommon manifestation of lower extremity peripheral arterial disease in hospitalized patients with coronary artery disease.
- Author
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Dieter RS, Biring T, Tomasson J, Gudjonsson T, Brown RL, Vitcenda M, Einerson J, Tanke TE, and McBride PE
- Subjects
- Coronary Artery Disease epidemiology, Female, Hospitalization, Humans, Intermittent Claudication diagnosis, Intermittent Claudication epidemiology, Male, Peripheral Vascular Diseases epidemiology, Predictive Value of Tests, Sensitivity and Specificity, Surveys and Questionnaires standards, Coronary Artery Disease complications, Intermittent Claudication etiology, Peripheral Vascular Diseases complications
- Abstract
Synchronous peripheral arterial disease (PAD) and coronary artery disease (CAD) is common. Standardized questionnaires such as the Rose/WHO questionnaire and later the Edinburgh modification of this questionnaire were developed to screen for PAD. Little data are available on the sensitivity of these questionnaires in hospitalized patients with CAD. The aim of this study was to determine the accuracy of these questionnaires and the prevalence of classic intermittent claudication in hospitalized patients with CAD. Medically stable patients with CAD were invited to participate before hospital discharge. The patients answered both the Rose/WHO and Edinburgh modification claudication questionnaires and had an ankle-brachial index (ABI) measured. An ABI less than or equal to 0.9 was considered to be indicative of significant PAD. Patients who had undergone previous lower extremity revascularization for PAD and had a corrected ABI greater than 0.9 were excluded. Ninety-five patients (66 men) were recruited. By measuring the ABI, 35 patients (25 men) were found to have significant PAD. An additional 3 patients who had an ABI corrected by lower extremity revascularization were excluded from the analysis. The Rose/WHO questionnaire had a sensitivity, specificity, and overall accuracy (95% CI) of 14.3% (2.7-25.9%), 96.7% (92.1-100%), and 66.3% (56.8-75.8%), respectively. The Edinburgh modification of the Rose/WHO questionnaire had a sensitivity, specificity, and overall accuracy (95% CI) of 28.6% (13.6-43.5%), 90.0% (82.4-97.6%), 67.4% (57.9-76.8%), respectively. Despite the high incidence of synchronous PAD in hospitalized patients with CAD, traditional claudication questionnaires are insensitive to PAD detection. Classic claudication is an uncommon manifestation of PAD in hospitalized patients with CAD.
- Published
- 2004
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12. Lower extremity peripheral arterial disease in hospitalized patients with coronary artery disease.
- Author
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Dieter RS, Tomasson J, Gudjonsson T, Brown RL, Vitcenda M, Einerson J, and McBride PE
- Subjects
- Age Factors, Aged, Ankle blood supply, Blood Pressure physiology, Brachial Artery physiology, Coronary Artery Disease complications, Diabetes Mellitus epidemiology, Female, Hospitalization, Humans, Hyperlipidemias epidemiology, Hypertension epidemiology, Logistic Models, Male, Middle Aged, Peripheral Vascular Diseases complications, Predictive Value of Tests, Prevalence, Risk Factors, Smoking epidemiology, Wisconsin epidemiology, Coronary Artery Disease epidemiology, Lower Extremity blood supply, Peripheral Vascular Diseases epidemiology
- Abstract
The prevalence of coronary artery disease (CAD) in patients with peripheral arterial disease (PAD) has been well defined. However, the prevalence of PAD in hospitalized patients with CAD has not been defined. The ankle-brachial index (ABI) is a useful non-invasive tool to screen for PAD. The aim of our study was to assess the prevalence of PAD in hospitalized patients with CAD by measuring the ABI. The study was conducted at the University of Wisconsin Hospital and Clinics inpatient Cardiovascular Medicine Service. Medically stable patients with CAD were invited to participate prior to hospital discharge. Data regarding cardiovascular risk factors, history of previous PAD, physical examination, and ABI were collected. An ABI less than or equal to 0.9 or a history of previous lower extremity vascular invention was considered to be indicative of significant PAD. A total of 100 patients (66 men and 34 women) were recruited. Forty patients were found to have PAD (mean ABI in non-revascularized patients with PAD = 0.67). By measuring the ABI, 37 (25 men) were positive for PAD and three had an ABI corrected with previous revascularization. Of these patients, 21 (52.5%) had previously documented PAD. Patients with PAD were older (p = 0.003), had a greater smoking history (p = 0.002), were more likely to have diabetes (p = 0.012), hypertension (p = 0.013) and a trend towards more dyslipidemia (p = 0.055). In conclusion, hospitalized patients with CAD are likely to have concomitant PAD. Risk factors for PAD in this patient population include advanced age, history of smoking, diabetes, hypertension, dyslipidemia and abnormal pulse examination. Identification of patients with PAD by measuring the ankle-brachial index is easily done.
- Published
- 2003
- Full Text
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13. Attaining and maintaining strong vocal synapses in female Xenopus laevis.
- Author
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Tobias ML, Tomasson J, and Kelley DB
- Subjects
- Aging physiology, Animals, Female, Male, Ovary physiology, Sexual Maturation physiology, Xenopus laevis, Estrogens metabolism, Larynx metabolism, Synapses physiology, Vocalization, Animal physiology
- Abstract
Synaptic efficacy at the laryngeal neuromuscular synapse differs markedly in adult male and female Xenopus laevis. Here, we examined the relation between circulating estrogen and synapse strength in developing and adult female frogs. Circulating estrogen levels in males and females during juvenile and adult stages were measured using radioimmunoassays. Synaptic strength was determined by quantal analysis in isolated female larynges. In males, estrogen levels are low (<40 pg/mL) throughout development. In females, estrogen levels are similar to those in males until 9 months after metamorphosis is complete and then increase throughout development. Female laryngeal synapses have low quantal contents until 24 months; quantal content increases significantly between 24 and 26 months, and high quantal contents are maintained thereafter. Measures of reproductive maturation, ovary, and oviduct weights, are strongly and positively correlated with estrogen level in 16- to 26-month females, while oocyte maturation is age dependent. Estrogen level and quantal content are not well correlated in these females. Ovariectomy at 24 months prevents the expected increase in quantal content and ovariectomy at 28 months results in a decrease in quantal content. Thus, the sex difference in efficacy of the laryngeal synapse develops under the influence of the ovary and requires the ovary for maintenance of strong synapses in adulthood. While the influence of the ovary is most likely due to estrogen secretion, the pattern of estrogen secretion required for maturation of the synapse in females is not known.
- Published
- 1998
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