Identifying the Content Production Risk Components in Digital Libraries: A Qualitative Study

Risk management is a preventive activity that identifies project risks and technical and non-technical problems for key managers and stakeholders by identifying project risks. The introduction of new digital forms of information not only has created rich and extraordinary opportunities for libraries to expand community access to information and create a positive relationship between libraries and users but poses some degree of risk. The present study employs a qualitative research approach with The Fuzzy Delphi Method (FDM). For data collection, a researcher-made questionnaire was used to identify the risks of content production in digital libraries. The FDM was employed for complete analysis using 20 IT experts on a 5-point Likert scale. The study identified 61 sub-components under nine main content production risk components: human, environmental, infrastructure, conservation and maintenance, technical, copyright, integration, evaluations of resource content, and information security risks. The present study addresses the content production risk components so that authorities can assist in planning and decision-making to prevent and resolve content production issues in digital libraries. https://dorl.net/dor/20.1001.1.20088302.2022.20.1.4.

A Continual Learning Approach for Cross-Domain White Blood Cell Classification

Accurate classification of white blood cells in peripheral blood is essential for diagnosing hematological diseases. Due to constantly evolving clinical settings, data sources, and disease classifications, it is necessary to update machine learning classification models regularly for practical real-world use. Such models significantly benefit from sequentially learning from incoming data streams without forgetting previously acquired knowledge. However, models can suffer from catastrophic forgetting, causing a drop in performance on previous tasks when fine-tuned on new data. Here, we propose a rehearsal-based continual learning approach for class incremental and domain incremental scenarios in white blood cell classification. To choose representative samples from previous tasks, we employ exemplar set selection based on the model's predictions. This involves selecting the most confident samples and the most challenging samples identified through uncertainty estimation of the model. We thoroughly evaluated our proposed approach on three white blood cell classification datasets that differ in color, resolution, and class composition, including scenarios where new domains or new classes are introduced to the model with every task. We also test a long class incremental experiment with both new domains and new classes. Our results demonstrate that our approach outperforms established baselines in continual learning, including existing iCaRL and EWC methods for classifying white blood cells in cross-domain environments.Comment: Accepted for publication at workshop on Domain Adaptation and Representation Transfer (DART) in International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI 2023

Numerical modeling of formation permeability impariment in produced water re-injection

Bibliography: p. 139-148Some pages are in colour

Fabrication of poly phosphoric acid into polyacrilonitrile composite nanofibers

Poly phosphoric acid/ Polyacrilonitrile composite nanofibers (PPA/PAN composite nanofibers) has been fabricated by the electro-spinning of PAN solutions containing different amount of PPA. The prepared nanofibers have been characterized by the using of FT-IR, SEM and XRD techniques. © (2012) Trans Tech Publications, Switzerland

The Study of Egg Allergy in Children With Atopic Dermatitis

Context: Food allergy plays a significant pathogenic role among children with atopic dermatitis (AD).Objective: The aims of this study were to evaluate allergy to egg in these children and determine the egg specific immunoglobulin E (IgE) cutoff point.Design and Setting: It was a cross-sectional study that took place at Immunology, Asthma and Allergy Research Institute from 2005 to 2007.Methods: Children younger than 14 years old with AD entered the study. Careful medical histories were taken and skin prick and Immuno-CAP tests with the most commonly offending foods (cow's milk, egg, wheat, peanut, and soy) were performed. Children with a clear, positive history of food allergy and a positive IgE-mediated test or those with positive responses to both IgE-mediated tests were determined to have food allergies. The egg-specific IgE level cutoff point was determined.Results: A hundred patients entered the study (from 2 months to 12 years old). They were divided into 3 age groups: first <2 years, second from 2 to <6 years, and third from 6 to 14 years. The most common food allergens were egg (39.22%) in the first, cow's milk (35.13%) and egg (32.43%) in the second, and peanut (25%) and egg (16.67%) in the third group. The egg-specific IgE cutoff point value was 0.62 kUA/L (kilounits of allergen-specific IgE per liter). The positive predictive value was 95%.Conclusion: Prevalence of egg allergy is highly significant in patients with AD.To use egg-specific IgE level cutoff point, the patient population under study must be considered. Keywords: egg allergy, atopic dermatitis, food allergy, specific IgE cutoff poin

Post-Pulmonary Embolism Impairment Six Months after Acute Pulmonary Embolism: A Prospective Registry

BACKGROUND Little evidence is available on post-pulmonary embolism impairment (PPEI), a recently defined complication of pulmonary embolism (PE) encompassing dysfunctional clinical and imaging parameters. In the present study, we sought to evaluate its frequency with a focus on the main components. METHODS In this prospective registry, we included patients with a confirmed diagnosis of acute PE and focused on those with initial right ventricular (RV) dysfunction. Their baseline, pre-discharge, and 6 month follow-up clinical and imaging characteristics were recorded. The main study outcomes were incomplete RV functional recovery, exercise capacity limitations (based on the 6 minute walk test), and their combination, which defines PPEI, within six months of acute PE. RESULTS Of 170 consecutive patients with a confirmed diagnosis of acute PE, 123 accepted to participate in the follow-up study, of whom 87 had initial RV dysfunction. The 6 month rates of incomplete RV functional recovery, signs of an intermediate-to-high echocardiographic probability of PH, and exercise limitations were observed in 58.6, 32.1, and 45.9%, respectively. A total of 22 (25.2%; 95% CI 15.5-34.4%) patients had PPEI. The RV/LV ratio and the fractional area change on discharge after acute PE were more often impaired among patients with incomplete RV recovery, exercise limitations, and a high probability of PH at 6 months. In contrast, an initial impaired RV diastolic function indices appeared to characterize patients with a limited exercise capacity at 6 months. DISCUSSION PPEI affects one fourth of patients surviving acute PE with half of them presenting with RV dysfunction or exercise limitations

Supplemental Material - Post-Pulmonary Embolism Impairment Six Months After Acute Pulmonary Embolism: A Prospective Registry

Supplemental Material for Post-Pulmonary Embolism Impairment Six Months After Acute Pulmonary Embolism: A Prospective Registry by Azin Alizadehasl, Melody Farrashi, Mona Naghsbandi, Nakisa Khansari, Jamal Moosavi, Omid Shafe, Bahram Mohebbi, Hooman Bakhshandeh, Hamid Reza Pouraliakbar, Kiara Rezaei-Kalantari, Batoul Naghavi, Hamed Talakoob, Maryam Mohseni Salehi, Raheleh Kaviani, Ahmad Amin, Stefano Barco, and Parham Sadeghipour in Vascular and Endovascular Surgery</p