| 11. |
|
|
| 12. |
- Orio, Alessandro, et al.
(author)
-
Working group on the assessment of demersal stocks in the North Sea and Skagerrak (WGNSSK)
- 2020
-
Reports (other academic/artistic)abstract
- The main terms of reference for the The ICES Working Group for the Assessment of Demersal Stocks in the North Sea and Skagerrak (WGNSSK) were: to update, quality check and report relevant data for the working group, to update and audit the assessment and forecasts of the stocks, to produce a first draft of the advice on the fish stocks and to prepare planning for benchmarks in future years. Ecosystem changes have been analytically considered in the assessments for cod, haddock and whiting in the form of varying natural mortalities estimated by the ICES Working Group on Multi Species Assessment Methods (WGSAM).
|
|
| 13. |
- Seoane, Fernando, 1976-, et al.
(author)
-
Adaptive frequency distribution for Electrical Bioimpedance Spectroscopy measurements
- 2012
-
In: Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE. - : IEEE. - 9781424441198 ; 2012, s. 562-5
-
Conference paper (peer-reviewed)abstract
- This paper presents a novel frequency distribution scheme intended to provide more accurate estimations of Cole parameters. Nowadays a logarithmic frequency distribution is mostly used in Electrical Bioimpedance Spectroscopy (EBIS) applications. However it is not optimized following any criterion. Our hypothesis is that an EBIS signal contains more information where the variation of the measurement regarding the frequency is larger; and that there ought to be more measuring frequencies where there is more information. Results show that for EBIS data with characteristic frequencies up to 200 kHz the error obtained with both frequency distribution schemes is similar. However, for EBIS data with higher values of characteristic frequency the error produced when estimating the values from EBIS measurements using an adaptive frequency distribution is smaller. Thus it may useful for EBIS applications with high values of characteristic frequency, e.g. cerebral bioimpedance.
|
|
| 14. |
- Seoane, Fernando, 1976-, et al.
(author)
-
An analog front-end enables electrical impedance spectroscopy system on-chip for biomedical applications
- 2008
-
In: Physiological Measurement. - : Institute of Physics Publishing (IOPP). - 0967-3334 .- 1361-6579. ; 29:6, s. S267-78
-
Journal article (peer-reviewed)abstract
- The increasing number of applications of electrical bioimpedance measurements in biomedical practice, together with continuous advances in textile technology, has encouraged several researchers to make the first attempts to develop portable, even wearable, electrical bioimpedance measurement systems. The main target of these systems is personal and home monitoring. Analog Devices has made available AD5933, a new system-on-chip fully integrated electrical impedance spectrometer, which might allow the implementation of minimum-size instrumentation for electrical bioimpedance measurements. However, AD5933 as such is not suitable for most applications of electrical bioimpedance. In this work, we present a relatively simple analog front-end that adapts AD5933 to a four-electrode strategy, allowing its use in biomedical applications for the first time. The resulting impedance measurements exhibit a very good performance in aspects like load dynamic range and accuracy. This type of minimum-size, system-on-chip-based bioimpedance measurement system would lead researchers to develop and implement light and wearable electrical bioimpedance systems for home and personal health monitoring applications, a new and huge niche for medical technology development.
|
|
| 15. |
- Seoane, Fernando, 1976-, et al.
(author)
-
Bioelectrical Impedance During Hypoxic Cell Swelling : Modeling of Tissue as a Suspension of Cells
- 2004
-
In: Proceedings of the 12th International Conference on Electrical Bioimpedance. - Gdansk. - 8391768163 ; 1, s. 73-76
-
Conference paper (peer-reviewed)abstract
- Non-invasive multi-frequency measurements of transcephalic impedance, both reactance and resistance, can efficiently detect cytotoxic edema in brain tissue and can be used for early detection of threatening brain damage. The model of biological tissue as a suspension of cells can be used as a valuable guide to identify the optimum range of frequencies for electrical impedance monitoring to detect cell swelling efficiently. We have performed experiments on piglets to monitor transcephalic impedance during hypoxia. The obtained results have confirmed the hypothesis that changes in the size of cells modify the tissue impedance. During tissue inflammation after induced hypoxia, cerebral tissue exhibits changes in both reactance and resistance. Those changes in impedance exhibit certain dependency of frequency in concordance with the suspension of cells model. The experimentally observed changes are remarkably high, up to 71% over the baseline, and easy to measure especially at certain frequencies. A better understanding of the electrical behaviour of cerebral tissue during cell swelling may lead the development effective non-invasive clinical tools and methods for early diagnosis of cerebral edema and brain damage prevention.
|
|
| 16. |
- Varshney, Ayush K., et al.
(author)
-
Recurrence analysis of integrally private support vector machine
-
Other publication (other academic/artistic)abstract
- In the era of big data, Machine Learning (ML) applications thrive on extensive datasets, but this exposes them to privacy risks. Regulatory frameworks like GDPR and CCPA aim to mitigate these risks. Integral privacy, an alternative to k-Anonymity and differential privacy, focuses on creating ambiguity for intruders by considering models generated from diverse datasets as privacy-preserving. Integral privacy calls such models as recurring models. While prior research has primarily explored recurrence in deep learning models which have large parameter space, this paper addresses the recurrence analysis of a typical machine learning model with relatively small parameter space like Support Vector Machine (SVM). Models having small parameter space can have significant impact due to the presence and absence of a datapoint. Due to this reason, one may intuitively consider that their probability to recur is low. We challenge this hypothesis with the recurrence analysis of SVM models trained on mean samplers like stochastic gradient descent. We find that under constrained environment SVM models recurs with high probability. This research enhances our understanding of privacy-preserving models in the context of SVMs, providing valuable insights into their privacy guarantees.
|
|
| 17. |
- Bülow, Pia, et al.
(author)
-
Patient school as a Way of Creating Meaning in a Contested Illness : The Case of CFS
- 2003
-
In: Health. - : SAGE Publications. - 1363-4593 .- 1461-7196. ; 7:2, s. 227-249
-
Journal article (peer-reviewed)abstract
- Creating meaning in a situation of contested illness like Chronic Fatigue Syndrome (CFS) is an interactive process. As an example of how meaning is created, a CFS patient school organized by a hospital clinic in Sweden is discussed. This school can be seen as both a school and a medically oriented activity. The presence of different frameworks provides an opportunity to use different perspectives to understand CFS. It makes it possible for the participating men and women to regard the illness both from the outside as a social object, from the inside through personal experiences and to put the diagnosis and suffering in a larger ‘sickness’ perspective. Consequently, a number of different interpretations are brought up and used to create meaning in a situation of illness. The patients/students are thus learning discursively to manage the illness at the same time as they examine different ways to interpret their experiences through this discursive activity.
|
|
| 18. |
- Burmester, Gerd, et al.
(author)
-
The appropriate use of non-steroidal anti-inflammatory drugs in rheumatic disease: opinions of a multidisciplinary European expert panel
- 2011
-
In: Annals of the Rheumatic Diseases. - : BMJ. - 1468-2060 .- 0003-4967. ; 70:5, s. 818-822
-
Journal article (peer-reviewed)abstract
- Introduction Given the safety issues of nonsteroidal anti-inflammatory drugs (NSAID) and the robustness of guidelines, making treatment choices in daily clinical practice is increasingly difficult. This study aimed systematically to analyse the opinions of a multidisciplinary European expert panel on the appropriateness of different NSAID, with or without the use of a proton pump inhibitor (PPI), in individual patients with chronic rheumatic disease. Methods Using the Research and Development/University of California at Los Angeles appropriateness method, the appropriateness of five (non-)selective NSAID with or without a PPI was assessed for 144 hypothetical patient profiles, ie, unique combinations of cardiovascular and gastrointestinal risk factors. Appropriateness statements were calculated for all indications. Results All options without PPI were considered appropriate in patients with no gastrointestinal/cardiovascular risk factors. Cyclooxygenase-2 selective inhibitors (C2SI) alone and non-selective NSAID plus PPI were preferred for patients with elevated gastrointestinal risk and low cardiovascular risk. Naproxen plus PPI was favoured in patients with high cardiovascular risk. For the combination of high gastrointestinal/high cardiovascular risk the use of any NSAID was discouraged; if needed, naproxen plus PPI or a C2SI plus PPI could be considered. Discussion The panel results may support treatment considerations at the level of individual patients, according to their gastrointestinal/cardiovascular risk profile.
|
|
| 19. |
|
|
| 20. |
|
|
