1,936 results on '"Matek A"'
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2. 4. Through the Looking-Glass: The Gothic Victim in Jordan Peele’s Us
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Matek, Ljubica, primary
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- 2024
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3. AI allows pre-screening of FGFR3 mutational status using routine histology slides of muscle-invasive bladder cancer
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Bannier, Pierre-Antoine, Saillard, Charlie, Mann, Philipp, Touzot, Maxime, Maussion, Charles, Matek, Christian, Klümper, Niklas, Breyer, Johannes, Wirtz, Ralph, Sikic, Danijel, Schmitz-Dräger, Bernd, Wullich, Bernd, Hartmann, Arndt, Försch, Sebastian, and Eckstein, Markus
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- 2024
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4. Healthcare and non-healthcare professionals’ knowledge about nutrition in older adults: a cross-sectional study
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Marijana Matek Sarić, Tamara Sorić, Ana Sarić, Paula Smoje, Anamarija Rozić, Marina Matković, Sanja Zoranić, and Marija Ljubičić
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Geriatric nutrition ,Healthcare professionals ,Non-healthcare professionals ,Nutrition knowledge ,Nutritional status ,Older adults ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Malnutrition frequently affects older adults, increasing their risk for numerous diseases, as well as healthcare costs. Therefore, nutritional assessment and appropriate nutritional support addressed to meet individual nutritional needs and prevent malnutrition and its consequences should be a fundamental part of healthcare for older adults. This study aimed to compare the knowledge of nutrition guidelines for older adults between healthcare and non-healthcare professionals working with older adults. Methods The study was conducted during May and June 2021 using a validated “Knowledge of nutrition guidelines for older adults” questionnaire designed by Andrija Stampar Teaching Institute of Public Health, Croatia. The study participants were recruited from various institutions providing care for older adults in Split-Dalmatia and Dubrovnik-Neretva County. The final convenience sample consisted of 214 participants (163 healthcare professionals and 51 non-healthcare professionals). The obtained results were analyzed using descriptive and inferential statistics. The associations between participants’ characteristics and knowledge about the importance of nutrition in disease prevention and treatment, the assessment of nutritional status in older adults, and clinical nutrition were analyzed using multiple linear regression models. Results Participants’ overall knowledge of nutrition guidelines for older adults was moderate in both groups, with healthcare professionals scoring a median of 7.0 (IQR = 1.0) and non-healthcare professionals scoring a median of 6.0 (IQR = 2.0). Compared to non-healthcare professionals, healthcare professionals had lower knowledge about the importance of nutrition in disease prevention and treatment (β = − 0.16; p = 0.024). No statistically significant differences were found between healthcare and non-healthcare professionals in the level of knowledge about the assessment of nutritional status in older adults (β = − 0.02; p = 0.769) and clinical nutrition (β = 0.08; p = 0.267). Conclusions This study highlights gaps in knowledge regarding dietary guidelines for older adults among healthcare and non-healthcare professionals working with this specific population group. These findings suggest that targeted educational programs might be needed to improve understanding of geriatric nutrition.
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- 2025
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5. Information about nutritional aspects of edible insects: Perspectives across different European geographies
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Raquel P. F. Guiné, Sofia G. Florença, Cristina A. Costa, Paula M. R. Correia, Manuela Ferreira, Ana P. Cardoso, Sofia Campos, Ofélia Anjos, Elena Bartkiene, and Marijana Matek Sarić
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consumer study ,questionnaire survey ,eating insects ,nutritive value ,Agriculture (General) ,S1-972 ,Food processing and manufacture ,TP368-456 - Abstract
Edible insects (EIs) have recently gained attention as an alternative and more sustainable food, emerging as an alternative to other protein foods with higher environmental impacts, like bovine meat. EIs contain a valuable composition of macro and micronutrients, important for human nutrition. Nevertheless, their consumption is not yet widespread in Western countries, such as in Europe. This work aimed to study how consumers in three different European locations perceive the role of EIs in human nutrition. Data collection was carried out by a questionnaire survey in three countries (Croatia, Lithuania, and Portugal), and 1723 participants were included in the study. For the treatment of the data, SPSS software was used, and chi-square tests and tree classification analysis were performed. The results showed that for all the statements presented to the participants, significant differences were found in information about EIs according to country. The results further highlighted that the participants were better informed about the high protein content of EIs, while not being well informed about their possible anti-nutritive effects. Tree classification revealed that the most important discriminating variable was country, with Lithuanian participants being better informed than those from Portugal or Croatia.
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- 2024
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6. J. G. Ballard’s The Drowned World: A Nonhuman Utopia
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Ljubica Matek
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j. g. ballard ,the drowned world ,the nonhuman turn ,heterotopia ,entropy ,Language and Literature - Abstract
The paper explores J. G. Ballard’s visionary 1962 novel The Drowned World as an example of a nonhuman utopia. Although written well before the conceptualization of the notion of the nonhuman turn, the novel embodies the philosophical ideas of such a turn as it challenges anthropocentric hierarchy and represents humans as disempowered and reactive, rather than proactive beings. The Drowned World imagines a world regressing into a prehistoric, pre-human state due to the Sun’s extreme activity and radical warming in a process of entropy, as all human scientific and architectural achievements collapse in the face of the merciless sun and the advancing ocean. The urban space is turned into lagoons that resemble heterotopias, a space that accommodates the transitional phase in the process of imminent human extinction, which, paradoxically, is met with relief and embraced as utopian by the novel’s protagonist.
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- 2024
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7. Stable Gastric Pentadecapeptide BPC 157 as Therapy After Surgical Detachment of the Quadriceps Muscle from Its Attachments for Muscle-to-Bone Reattachment in Rats
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Danijel Matek, Irena Matek, Eva Staresinic, Mladen Japjec, Ivan Bojanic, Alenka Boban Blagaic, Lidija Beketic Oreskovic, Ivana Oreskovic, Tihomil Ziger, Tomislav Novinscak, Ivan Krezic, Sanja Strbe, Martin Drinkovic, Filip Brkic, Jelena Popic, Anita Skrtic, Sven Seiwerth, Mario Staresinic, Predrag Sikiric, and Ivica Brizic
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pentadecapeptide BPC 157 ,muscle-to-bone detachment ,walking recovery index (WRI) ,motor function index (MFI) ,contracture ,ultrasonic imaging ,Pharmacy and materia medica ,RS1-441 - Abstract
Background: This is a novel rat study using native peptide therapy, focused on reversing quadriceps muscle-to-bone detachment to reattachment and stable gastric pentadecapeptide BPC 157 per-oral therapy for shared muscle healing and function restoration. Methods: Pharmacotherapy recovering various muscle, tendon, ligament, and bone lesions, and severed junctions (i.e., myotendinous junction), per-oral in particular (BPC 157/kg/day 10 µg, 10 ng), provides muscle-to-bone reattachment after quadriceps muscle detachment, both complete (rectus muscle) and partial (vastus muscles). Results: Immediately post-injury, and at 1, 2, 3, 5, 7, 14, 21, 28, 60, and 90 days post-injury, quadriceps muscle-to-bone detachment showed definitive healing failure (impaired walking and permanent knee flexure). Contrarily, macro/microscopic, ultrasonic, magnetic resonance, biomechanical, and functional assessments revealed that BPC 157 therapy recovering effects for all time points were consistent. All parameters of the walking pattern fully improved, and soon after detachment and therapy application, muscle approached the bone, leaving a minimal gap (on ultrasonic assessment), and leg contracture was annihilated. The healing process occurs immediately after detachment from both sides: the muscle and the bone. The reattachment fibers from the ends of the muscle could be traced into the new bone formed at the surface (note, at day 3 post-detachment, increased mesenchymal cells occurred with periosteum reactivation). Consequently, at 3 months, the form was stable, and the balance between the muscle and bone was the following: well-organized bone, newly formed as more cortical bone providing a narrower bone marrow space, and the muscle and mature fibers were oriented parallel to the bone axis and were in close contact with bone. Conclusions: Therefore, to achieve quadriceps muscle-to-bone reattachment, the BPC 157 therapy reversing course acts from the beginning, resolving an otherwise insurmountable deleterious course.
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- 2025
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8. Data Models for Dataset Drift Controls in Machine Learning With Optical Images
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Oala, Luis, Aversa, Marco, Nobis, Gabriel, Willis, Kurt, Neuenschwander, Yoan, Buck, Michèle, Matek, Christian, Extermann, Jerome, Pomarico, Enrico, Samek, Wojciech, Murray-Smith, Roderick, Clausen, Christoph, and Sanguinetti, Bruno
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Computer Science - Machine Learning ,Computer Science - Artificial Intelligence ,Computer Science - Computer Vision and Pattern Recognition - Abstract
Camera images are ubiquitous in machine learning research. They also play a central role in the delivery of important services spanning medicine and environmental surveying. However, the application of machine learning models in these domains has been limited because of robustness concerns. A primary failure mode are performance drops due to differences between the training and deployment data. While there are methods to prospectively validate the robustness of machine learning models to such dataset drifts, existing approaches do not account for explicit models of the primary object of interest: the data. This limits our ability to study and understand the relationship between data generation and downstream machine learning model performance in a physically accurate manner. In this study, we demonstrate how to overcome this limitation by pairing traditional machine learning with physical optics to obtain explicit and differentiable data models. We demonstrate how such data models can be constructed for image data and used to control downstream machine learning model performance related to dataset drift. The findings are distilled into three applications. First, drift synthesis enables the controlled generation of physically faithful drift test cases to power model selection and targeted generalization. Second, the gradient connection between machine learning task model and data model allows advanced, precise tolerancing of task model sensitivity to changes in the data generation. These drift forensics can be used to precisely specify the acceptable data environments in which a task model may be run. Third, drift optimization opens up the possibility to create drifts that can help the task model learn better faster, effectively optimizing the data generating process itself. A guide to access the open code and datasets is available at https://github.com/aiaudit-org/raw2logit., Comment: Published as a journal paper in the Transactions on Machine Learning Research 2023 (TMLR) available at https://openreview.net/forum?id=I4IkGmgFJz
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- 2022
9. PD-L1-Expression in primary and recurrent vulvar squamous cell cancer
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Stuebs, Frederik A., Knöll, Antje, Hartmann, Arndt, Leikauf, Leah-Sophie, Matek, Christian, John, Nelson, Häberle, Lothar, Beckmann, Matthias W., and Geppert, Carol I.
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- 2025
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10. HLA-G expression associates with immune evasion muscle-invasive urothelial cancer and drives prognostic relevance
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Annalena Branz, Christian Matek, Fabienne Lange, Veronika Bahlinger, Niklas Klümper, Michael Hölzel, Pamela L. Strissel, Reiner Strick, Danijel Sikic, Sven Wach, Helge Taubert, Bernd Wullich, Arndt Hartmann, Barbara Seliger, and Markus Eckstein
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HLA-G ,urothelial cancer ,immune checkpoints ,immune evasion ,immune microenvironment ,Immunologic diseases. Allergy ,RC581-607 - Abstract
IntroductionUrothelial bladder cancer is frequent and exhibits diverse prognoses influenced by molecular subtypes, urothelial subtype histology, and immune microenvironments. HLA-G, known for immune regulation, displays significant membranous expression in tumor tissues.MethodsWe studied the protein expression of Human Leucocyte Antigen G (HLA-G) in 241 Muscle-Invasive Bladder Cancer (MIBC) patients, elucidating its potential clinical and biological significance. Protein expression levels were evaluated and correlated with molecular subtypes, histological characteristics, immune microenvironment markers, and survival outcomes.ResultsHigh HLA-G expression associates with poor overall survival (OS) and diseasespecific survival (DSS), independent of clinicopathological parameters. HLA-G expression varies among molecular subtypes and Urothelial Subtype Histology, e.g., elevated expression levels in basal/squamous MIBC and those with sarcomatoid differentiation. Notably, HLA-G is increased in MIBC with an immune evasive microenvironment (high PD-L1 tumor cell expression, NK cell depletion, granzyme B (GZMB)/CD8 ratio reduction, MHC class I (MHCI) expression reduction) that are characterized by immunosuppressive features and poor prognosis. Furthermore, HLA-G correlates with elevated levels of other immune checkpoint proteins (TIGIT, LAG3, CTLA-4), indicating its role in immune evasion.DiscussionOur findings underscore HLA-G’s role as a potential prognostic marker and interesting immunotherapeutic target in MIBC. Its impact on immune evasion mechanisms and broad expression, coupled with associations withpoor survival and distinct tumor phenotypes, positions HLA-G as a promising protein for further exploration in developing targeted immunotherapies for MIBC patients.
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- 2024
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11. Marine plankton community and net primary production responding to island-trapped waves in a stratified oligotrophic ecosystem
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Zrinka Ljubešić, Hrvoje Mihanović, Antonija Matek, Maja Mucko, Eric P. Achterberg, Melissa Omand, Branka Pestorić, Davor Lučić, Hrvoje Čižmek, Barbara Čolić, Cecilia Balestra, Raffaella Casotti, Ivica Janeković, and Mirko Orlić
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Internal wave ,Biophysical coupling ,Adaptive sampling ,Plankton diversity ,Zooplankton-associated bacteria ,Adriatic Sea ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
The oligotrophic Adriatic Sea is characterized during a typical summer by low productivity caused by strong water column stratification, which inhibits vertical mixing and nutrient supply to the euphotic zone. These conditions can be disrupted by transient physical forcing, which enhances nutrient fluxes and creates localized hotspots of relatively high net primary production. In this study, plankton abundance and diversity were investigated in relation to the physical forcing and nutrient concentrations in an area affected by island-trapped waves (ITWs) near Lastovo Island (Adriatic Sea). The episodic ITW events resulted in enhanced uplift and vertical excursion of the thermocline, marked by anomalously higher nutrient concentrations and a corresponding increase in net primary production in the thermocline layer. Physicochemical properties explained 11.7 % (p = 0.002) of the variability in micro- and nanophytoplankton and 88.9 % (p = 0.001) in the picoplankton community. A significant response to the ITW phenomenon in the plankton community composition (p = 0.001) was observed for bacterioplankton. Among the identified amplicon sequence variances, primary producers were scarce and mainly represented cyanobacteria (Synechococcus strain CC9902), stramenopiles (Pelagomonas), and chlorophytes (Ostreococcus). The remaining amplicon sequence variances were assigned to the classes Copepoda, parasitic fungi (Meyerozyma spp.), mixotrophic dinoflagellates (family Peridiniales, mostly the genus Blastodinium), and parasitic Ciliophora (Scuticociliata). Bacterial ecological functions corresponded to chemoheterotrophic, degradation, and fermentation processes, whereas samples collected after the most intense ITW episode also showed abundant bacteria linked to microplastic degradation and parasitosis. These results highlight the ecological role of localized physical phenomena in enhancing nearshore primary productivity and fine shifts in plankton taxa in oligotrophic systems.
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- 2024
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12. Total proteome and calcium-binding proteins from human breast milk: Exploring the impact of tobacco smoke exposure and environmental factors
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Medić, Ana, Milićević, Tijana, Khraibah, Abdullah, Herceg Romanić, Snježana, Matek Sarić, Marijana, Li, Yingxi, D'Mello, Rochelle, Berezovski, Maxim, Popović, Aleksandar, Minić, Zoran, and Karadžić, Ivanka
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- 2025
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13. Presence of polycyclic aromatic hydrocarbons and persistent organochlorine pollutants in human Milk: Evaluating their levels, association with Total antioxidant capacity, and risk assessment
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Mendaš, Gordana, Jakovljević, Ivana, Romanić, Snježana Herceg, Fingler, Sanja, Jovanović, Gordana, Sarić, Marijana Matek, Pehnec, Gordana, Popović, Aleksandar, and Stanković, Dalibor
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- 2024
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14. Edible Insects: Consumption, Perceptions, Culture and Tradition Among Adult Citizens from 14 Countries
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Raquel P. F. Guiné, Sofia G. Florença, Cristina A. Costa, Paula M. R. Correia, Luísa Cruz-Lopes, Bruno Esteves, Manuela Ferreira, Anabela Fragata, Ana P. Cardoso, Sofia Campos, Ofélia Anjos, Nada M. Boustani, Elena Bartkiene, Cristina Chuck-Hernández, Ilija Djekic, Monica Tarcea, Marijana Matek Sarić, Zanda Kruma, Malgorzata Korzeniowska, Maria Papageorgiou, Leticia González Árias, Maša Černelič-Bizjak, Emel Damarli, Vanessa Ferreira, Emre Bayraktaroğlu, and Fatmanur Ozyurek Arpa
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insect consumption ,consumer habits ,COVID-19 ,gastronomy ,exotic food ,questionnaire survey ,Chemical technology ,TP1-1185 - Abstract
Although edible insects (EIs) are encouraged as a sustainable source of protein, their consumption is not as generalised as other types of food that are internationally accepted. While in some regions of the world, EIs are part of the gastronomic and cultural traditions, in other regions, people are not so receptive to this type of food, and some people even express some disgust towards it. Hence, this research focused on the habits of the participants regarding the consumption of insects as well as their perceptions about EIs being or not a part of the local culture or gastronomic patrimony. A questionnaire survey was implemented in fourteen countries (Brazil, Croatia, Greece, Latvia, Lebanon, Lithuania, Mexico, Poland, Portugal, Romania, Serbia, Slovenia, Spain, and Turkey), and globally, 7222 adult participants responded to the questionnaire. SPSS software (version 28) was used to process the data and carry out chi-square tests and Factor Analyses (FA). The obtained results showed significant differences between countries for all the questions included in the survey, either those regarding the habits of the participants or their opinions about the facts linked with EI tradition or cultural aspects. It was found that participants from Mexico consume EIs more than in all other countries and that strong motivations that would lead to consumption among those who do not consume include curiosity and food shortage. The solution obtained with FA considering the ten statements of the scale consisted of two factors: F1—Culture and Tradition of EIs (α = 0.675) and F2—Acceptance of EIs (α = 0.614). In conclusion, the consumption of EIs and the perceptions of people are highly variable according to geographic location and cultural environment.
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- 2024
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15. A deep‐learning workflow to predict upper tract urothelial carcinoma protein‐based subtypes from H&E slides supporting the prioritization of patients for molecular testing
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Miriam Angeloni, Thomas vanDoeveren, Sebastian Lindner, Patrick Volland, Jorina Schmelmer, Sebastian Foersch, Christian Matek, Robert Stoehr, Carol I Geppert, Hendrik Heers, Sven Wach, Helge Taubert, Danijel Sikic, Bernd Wullich, Geert JLH vanLeenders, Vasily Zaburdaev, Markus Eckstein, Arndt Hartmann, Joost L Boormans, Fulvia Ferrazzi, and Veronika Bahlinger
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deep‐learning ,digital pathology ,immunohistochemistry ,protein‐based subtypes ,targeted therapy ,upper tract urothelial carcinoma ,Pathology ,RB1-214 - Abstract
Abstract Upper tract urothelial carcinoma (UTUC) is a rare and aggressive, yet understudied, urothelial carcinoma (UC). The more frequent UC of the bladder comprises several molecular subtypes, associated with different targeted therapies and overlapping with protein‐based subtypes. However, if and how these findings extend to UTUC remains unclear. Artificial intelligence‐based approaches could help elucidate UTUC's biology and extend access to targeted treatments to a wider patient audience. Here, UTUC protein‐based subtypes were identified, and a deep‐learning (DL) workflow was developed to predict them directly from routine histopathological H&E slides. Protein‐based subtypes in a retrospective cohort of 163 invasive tumors were assigned by hierarchical clustering of the immunohistochemical expression of three luminal (FOXA1, GATA3, and CK20) and three basal (CD44, CK5, and CK14) markers. Cluster analysis identified distinctive luminal (N = 80) and basal (N = 42) subtypes. The luminal subtype mostly included pushing, papillary tumors, whereas the basal subtype diffusely infiltrating, non‐papillary tumors. DL model building relied on a transfer‐learning approach by fine‐tuning a pre‐trained ResNet50. Classification performance was measured via three‐fold repeated cross‐validation. A mean area under the receiver operating characteristic curve of 0.83 (95% CI: 0.67–0.99), 0.8 (95% CI: 0.62–0.99), and 0.81 (95% CI: 0.65–0.96) was reached in the three repetitions. High‐confidence DL‐based predicted subtypes showed significant associations (p
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- 2024
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16. B-Cos Aligned Transformers Learn Human-Interpretable Features.
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Manuel Tran, Amal Lahiani, Yashin Dicente Cid, Melanie Boxberg, Peter Lienemann, Christian Matek, Sophia J. Wagner, Fabian J. Theis, Eldad Klaiman, and Tingying Peng
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- 2023
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17. Proposal for a Novel Histological Scoring System as a Potential Grading Approach for Muscle-invasive Urothelial Bladder Cancer Correlating with Disease Aggressiveness and Patient Outcomes
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Eckstein, Markus, Matek, Christian, Wagner, Paul, Erber, Ramona, Büttner-Herold, Maike, Wild, Peter J., Taubert, Helge, Wach, Sven, Sikic, Danijel, Wullich, Bernd, Geppert, Carol I., Compérat, Eva M., Lopez-Beltran, Antonio, Montironi, Rodolfo, Cheng, Liang, van der Kwast, Theodorus, Colecchia, Maurizio, van Rhijn, Bas W.G., Amin, Mahul B., Netto, George J., Lehmann, Jan, Stöckle, Michael, Junker, Kerstin, Hartmann, Arndt, and Bertz, Simone
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- 2024
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18. Built to Last? Reproducibility and Reusability of Deep Learning Algorithms in Computational Pathology
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Wagner, Sophia J., Matek, Christian, Shetab Boushehri, Sayedali, Boxberg, Melanie, Lamm, Lorenz, Sadafi, Ario, Winter, Dominik J.E., Marr, Carsten, and Peng, Tingying
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- 2024
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19. B-Cos Aligned Transformers Learn Human-Interpretable Features.
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Manuel Tran, Amal Lahiani, Yashin Dicente Cid, Melanie Boxberg, Peter Lienemann, Christian Matek, Sophia J. Wagner, Fabian J. Theis, Eldad Klaiman, and Tingying Peng
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- 2024
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20. Stable Gastric Pentadecapeptide BPC 157 as Therapy After Surgical Detachment of the Quadriceps Muscle from Its Attachments for Muscle-to-Bone Reattachment in Rats.
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Matek, Danijel, Matek, Irena, Staresinic, Eva, Japjec, Mladen, Bojanic, Ivan, Boban Blagaic, Alenka, Beketic Oreskovic, Lidija, Oreskovic, Ivana, Ziger, Tihomil, Novinscak, Tomislav, Krezic, Ivan, Strbe, Sanja, Drinkovic, Martin, Brkic, Filip, Popic, Jelena, Skrtic, Anita, Seiwerth, Sven, Staresinic, Mario, Sikiric, Predrag, and Brizic, Ivica
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MYOTENDINOUS junctions ,QUADRICEPS muscle ,ULTRASONIC imaging ,COMPACT bone ,MAGNETIC resonance imaging ,PERIOSTEUM - Abstract
Background: This is a novel rat study using native peptide therapy, focused on reversing quadriceps muscle-to-bone detachment to reattachment and stable gastric pentadecapeptide BPC 157 per-oral therapy for shared muscle healing and function restoration. Methods: Pharmacotherapy recovering various muscle, tendon, ligament, and bone lesions, and severed junctions (i.e., myotendinous junction), per-oral in particular (BPC 157/kg/day 10 µg, 10 ng), provides muscle-to-bone reattachment after quadriceps muscle detachment, both complete (rectus muscle) and partial (vastus muscles). Results: Immediately post-injury, and at 1, 2, 3, 5, 7, 14, 21, 28, 60, and 90 days post-injury, quadriceps muscle-to-bone detachment showed definitive healing failure (impaired walking and permanent knee flexure). Contrarily, macro/microscopic, ultrasonic, magnetic resonance, biomechanical, and functional assessments revealed that BPC 157 therapy recovering effects for all time points were consistent. All parameters of the walking pattern fully improved, and soon after detachment and therapy application, muscle approached the bone, leaving a minimal gap (on ultrasonic assessment), and leg contracture was annihilated. The healing process occurs immediately after detachment from both sides: the muscle and the bone. The reattachment fibers from the ends of the muscle could be traced into the new bone formed at the surface (note, at day 3 post-detachment, increased mesenchymal cells occurred with periosteum reactivation). Consequently, at 3 months, the form was stable, and the balance between the muscle and bone was the following: well-organized bone, newly formed as more cortical bone providing a narrower bone marrow space, and the muscle and mature fibers were oriented parallel to the bone axis and were in close contact with bone. Conclusions: Therefore, to achieve quadriceps muscle-to-bone reattachment, the BPC 157 therapy reversing course acts from the beginning, resolving an otherwise insurmountable deleterious course. [ABSTRACT FROM AUTHOR]
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- 2025
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21. Transformer-based biomarker prediction from colorectal cancer histology: A large-scale multicentric study
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Church, David, Domingo, Enric, Edwards, Joanne, Glimelius, Bengt, Gogenur, Ismail, Harkin, Andrea, Hay, Jen, Iveson, Timothy, Jaeger, Emma, Kelly, Caroline, Kerr, Rachel, Maka, Noori, Morgan, Hannah, Oien, Karin, Orange, Clare, Palles, Claire, Roxburgh, Campbell, Sansom, Owen, Saunders, Mark, Tomlinson, Ian, Wagner, Sophia J., Reisenbüchler, Daniel, West, Nicholas P., Niehues, Jan Moritz, Zhu, Jiefu, Foersch, Sebastian, Veldhuizen, Gregory Patrick, Quirke, Philip, Grabsch, Heike I., van den Brandt, Piet A., Hutchins, Gordon G.A., Richman, Susan D., Yuan, Tanwei, Langer, Rupert, Jenniskens, Josien C.A., Offermans, Kelly, Mueller, Wolfram, Gray, Richard, Gruber, Stephen B., Greenson, Joel K., Rennert, Gad, Bonner, Joseph D., Schmolze, Daniel, Jonnagaddala, Jitendra, Hawkins, Nicholas J., Ward, Robyn L., Morton, Dion, Seymour, Matthew, Magill, Laura, Nowak, Marta, Hay, Jennifer, Koelzer, Viktor H., Church, David N., Matek, Christian, Geppert, Carol, Peng, Chaolong, Zhi, Cheng, Ouyang, Xiaoming, James, Jacqueline A., Loughrey, Maurice B., Salto-Tellez, Manuel, Brenner, Hermann, Hoffmeister, Michael, Truhn, Daniel, Schnabel, Julia A., Boxberg, Melanie, Peng, Tingying, and Kather, Jakob Nikolas
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- 2023
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22. Persistent organic pollutants in Croatian breast milk: An overview of pollutant levels and infant health risk assessment from 1976 to the present
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Herceg Romanić, Snježana, Milićević, Tijana, Jovanović, Gordana, Matek Sarić, Marijana, Mendaš, Gordana, Fingler, Sanja, Jakšić, Goran, Popović, Aleksandar, and Relić, Dubravka
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- 2023
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23. THE (AB)USE OF LANGUAGE IN TWENTIETH CENTURY BRITISH DYSTOPIAS
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Matek, Ljubica, primary and Pataki Šumiga, Jelena, additional
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- 2023
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24. Dynamics of organic matter in the changing environment of a stratified marine lake over two decades
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Simonović, Niki, Dominović, Iva, Marguš, Marija, Matek, Antonija, Ljubešić, Zrinka, and Ciglenečki, Irena
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- 2023
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25. The Stable Gastric Pentadecapeptide BPC 157 Pleiotropic Beneficial Activity and Its Possible Relations with Neurotransmitter Activity
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Predrag Sikiric, Alenka Boban Blagaic, Sanja Strbe, Lidija Beketic Oreskovic, Ivana Oreskovic, Suncana Sikiric, Mario Staresinic, Marko Sever, Antonio Kokot, Ivana Jurjevic, Danijel Matek, Luka Coric, Ivan Krezic, Ante Tvrdeic, Kresimir Luetic, Lovorka Batelja Vuletic, Predrag Pavic, Tomislav Mestrovic, Ivica Sjekavica, Anita Skrtic, and Sven Seiwerth
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stable gastric pentadecapeptide BPC 157 ,pleiotropic beneficial activity ,cytoprotection ,neurotransmitter ,occlusion/occlusion-like syndrome ,VEGF ,Medicine ,Pharmacy and materia medica ,RS1-441 - Abstract
We highlight the particular aspects of the stable gastric pentadecapeptide BPC 157 pleiotropic beneficial activity (not destroyed in human gastric juice, native and stable in human gastric juice, as a cytoprotection mediator holds a response specifically related to preventing or recovering damage as such) and its possible relations with neurotransmitter activity. We attempt to resolve the shortage of the pleiotropic beneficial effects of BPC 157, given the general standard neurotransmitter criteria, in classic terms. We substitute the lack of direct conclusive evidence (i.e., production within the neuron or present in it as a precursor molecule, released eliciting a response on the receptor on the target cells on neurons and being removed from the site of action once its signaling role is complete). This can be a network of interconnected evidence, previously envisaged in the implementation of the cytoprotection effects, consistent beneficial particular evidence that BPC 157 therapy counteracts dopamine, serotonin, glutamate, GABA, adrenalin/noradrenalin, acetylcholine, and NO-system disturbances. This specifically includes counteraction of those disturbances related to their receptors, both blockade and over-activity, destruction, depletion, tolerance, sensitization, and channel disturbances counteraction. Likewise, BPC 157 activates particular receptors (i.e., VGEF and growth hormone). Furthermore, close BPC 157/NO-system relations with the gasotransmitters crossing the cell membrane and acting directly on molecules inside the cell may envisage particular interactions with receptors on the plasma membrane of their target cells. Finally, there is nerve-muscle relation in various muscle disturbance counteractions, and nerve-nerve relation in various encephalopathies counteraction, which is also exemplified specifically by the BPC 157 therapy application.
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- 2024
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26. Recommender system for learning SQL using hints
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Lavbič, Dejan, Matek, Tadej, and Zrnec, Aljaž
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Computer Science - Artificial Intelligence - Abstract
Today's software industry requires individuals who are proficient in as many programming languages as possible. Structured query language (SQL), as an adopted standard, is no exception, as it is the most widely used query language to retrieve and manipulate data. However, the process of learning SQL turns out to be challenging. The need for a computer-aided solution to help users learn SQL and improve their proficiency is vital. In this study, we present a new approach to help users conceptualize basic building blocks of the language faster and more efficiently. The adaptive design of the proposed approach aids users in learning SQL by supporting their own path to the solution and employing successful previous attempts, while not enforcing the ideal solution provided by the instructor. Furthermore, we perform an empirical evaluation with 93 participants and demonstrate that the employment of hints is successful, being especially beneficial for users with lower prior knowledge., Comment: 18 pages, 8 figures, 2 tables
- Published
- 2018
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27. B-Cos Aligned Transformers Learn Human-Interpretable Features
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Tran, Manuel, primary, Lahiani, Amal, additional, Dicente Cid, Yashin, additional, Boxberg, Melanie, additional, Lienemann, Peter, additional, Matek, Christian, additional, Wagner, Sophia J., additional, Theis, Fabian J., additional, Klaiman, Eldad, additional, and Peng, Tingying, additional
- Published
- 2023
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28. The effect of entrepreneurial mentoring on the innovativeness and growth of new ventures
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Matek, T., Matek, T., Matek, T., and Matek, T.
- Published
- 2024
29. Potential risks and health benefits of fish in the diet during the childbearing period: Focus on trace elements and n-3 fatty acid content in commonly consumed fish species from the Adriatic Sea
- Author
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Sulimanec Grgec, Antonija, Jurasović, Jasna, Kljaković-Gašpić, Zorana, Orct, Tatjana, Rumora Samarin, Ivana, Janči, Tibor, Sekovanić, Ankica, Grzunov Letinić, Judita, Matek Sarić, Marijana, Benutić, Anica, Capak, Krunoslav, and Piasek, Martina
- Published
- 2022
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30. Healthcare and non-healthcare professionals' knowledge about nutrition in older adults: a cross-sectional study.
- Author
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Matek Sarić, Marijana, Sorić, Tamara, Sarić, Ana, Smoje, Paula, Rozić, Anamarija, Matković, Marina, Zoranić, Sanja, and Ljubičić, Marija
- Subjects
NUTRITIONAL assessment ,MEDICAL personnel ,OLDER people ,NUTRITIONAL requirements ,CONVENIENCE sampling (Statistics) - Abstract
Background: Malnutrition frequently affects older adults, increasing their risk for numerous diseases, as well as healthcare costs. Therefore, nutritional assessment and appropriate nutritional support addressed to meet individual nutritional needs and prevent malnutrition and its consequences should be a fundamental part of healthcare for older adults. This study aimed to compare the knowledge of nutrition guidelines for older adults between healthcare and non-healthcare professionals working with older adults. Methods: The study was conducted during May and June 2021 using a validated "Knowledge of nutrition guidelines for older adults" questionnaire designed by Andrija Stampar Teaching Institute of Public Health, Croatia. The study participants were recruited from various institutions providing care for older adults in Split-Dalmatia and Dubrovnik-Neretva County. The final convenience sample consisted of 214 participants (163 healthcare professionals and 51 non-healthcare professionals). The obtained results were analyzed using descriptive and inferential statistics. The associations between participants' characteristics and knowledge about the importance of nutrition in disease prevention and treatment, the assessment of nutritional status in older adults, and clinical nutrition were analyzed using multiple linear regression models. Results: Participants' overall knowledge of nutrition guidelines for older adults was moderate in both groups, with healthcare professionals scoring a median of 7.0 (IQR = 1.0) and non-healthcare professionals scoring a median of 6.0 (IQR = 2.0). Compared to non-healthcare professionals, healthcare professionals had lower knowledge about the importance of nutrition in disease prevention and treatment (β = − 0.16; p = 0.024). No statistically significant differences were found between healthcare and non-healthcare professionals in the level of knowledge about the assessment of nutritional status in older adults (β = − 0.02; p = 0.769) and clinical nutrition (β = 0.08; p = 0.267). Conclusions: This study highlights gaps in knowledge regarding dietary guidelines for older adults among healthcare and non-healthcare professionals working with this specific population group. These findings suggest that targeted educational programs might be needed to improve understanding of geriatric nutrition. [ABSTRACT FROM AUTHOR]
- Published
- 2025
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- View/download PDF
31. Make deep learning algorithms in computational pathology more reproducible and reusable
- Author
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Wagner, Sophia J., Matek, Christian, Shetab Boushehri, Sayedali, Boxberg, Melanie, Lamm, Lorenz, Sadafi, Ario, Waibel, Dominik J. E., Marr, Carsten, and Peng, Tingying
- Published
- 2022
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- View/download PDF
32. Motivation for health behaviour: A predictor of adherence to balanced and healthy food across different coastal Mediterranean countries
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Ljubičić, Marija, Sarić, Marijana Matek, Klarin, Ivo, Rumbak, Ivana, Barić, Irena Colić, Ranilović, Jasmina, EL-Kenawy, Ayman, Papageorgiou, Maria, Vittadini, Elena, Bizjak, Maša Černelič, and Guiné, Raquel
- Published
- 2022
- Full Text
- View/download PDF
33. Nursing students' knowledge and attitudes regarding brominated flame retardants from three Croatian universities
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Jakšić, Krešimir, Matek Sarić, Marijana, and Čulin, Jelena
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- 2022
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- View/download PDF
34. Marketing motivations influencing food choice in 16 countries: segmentation and cluster analysis
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Carla Henriques, Ana Matos, Madalena Malva, Elena Bartkienė, Ilija Djekić, Monica Tarcea, Marijana Matek Sarić, Maša Černelič-Bizjak, Veronika Dolar, Ayman EL-Kenawy, Vanessa Ferreira, Dace Klava, Małgorzata Korzeniowska, Elena Vittadini, Marcela Leal, Lucia Frez-Muñoz, Maria Papageorgiou, Viktória Szűcs, Paula M. R. Correia, and Raquel P. F. Guiné
- Subjects
Regional planning ,HT390-395 - Abstract
Food behaviour is governed by different kinds of motivations, some of individual nature and others related with the external food environment. This study investigated the eating motivations in sixteen countries with respect to commercial and marketing influences on food choices. The questionnaire survey was developed between September 2017 and June 2018, via online tools, targeting a convenience sample of residents in sixteen countries (Argentina, Brazil, Croatia, Egypt, Greece, Hungary, Italy, Latvia, Lithuania, Netherlands, Poland, Portugal, Romania, Serbia, Slovenia and the United States of America). The number of valid responses received was 11,919 participants. The data were treated using SPSS software, and the main statistical techniques used included exploratory factor analysis, evaluation of internal reliability through Cronbach’s alpha, cluster analysis (hierarchical and k-means) and logistic regression. The results obtained showed two groups of people: low motivated and notably motivated consumers. The results showed high asymmetries between countries, with highest percentage of highly motivated consumers in Egypt and the lowest percentage of highly motivated in Portugal. It was further observed that consumers more influenced by commercial and marketing aspects (the notably motivated) tend to be women, young, single, less educated, less likely to be professionally active, and those who live mostly in rural or suburban areas. Less exercise and overweight are also factors associated with greater propensity for commercial and marketing motivations. Furthermore, health problems such as shellfish or gluten intolerance, hypertension and high cholesterol confer less propensity to be in the segment of the notably motivated consumers. In conclusion, this work highlighted the role of geographic, sociodemographic and lifestyle factors as food choice determinants.
- Published
- 2022
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- View/download PDF
35. Explainable AI identifies diagnostic cells of genetic AML subtypes.
- Author
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Matthias Hehr, Ario Sadafi, Christian Matek, Peter Lienemann, Christian Pohlkamp, Torsten Haferlach, Karsten Spiekermann, and Carsten Marr
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Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Explainable AI is deemed essential for clinical applications as it allows rationalizing model predictions, helping to build trust between clinicians and automated decision support tools. We developed an inherently explainable AI model for the classification of acute myeloid leukemia subtypes from blood smears and found that high-attention cells identified by the model coincide with those labeled as diagnostically relevant by human experts. Based on over 80,000 single white blood cell images from digitized blood smears of 129 patients diagnosed with one of four WHO-defined genetic AML subtypes and 60 healthy controls, we trained SCEMILA, a single-cell based explainable multiple instance learning algorithm. SCEMILA could perfectly discriminate between AML patients and healthy controls and detected the APL subtype with an F1 score of 0.86±0.05 (mean±s.d., 5-fold cross-validation). Analyzing a novel multi-attention module, we confirmed that our algorithm focused with high concordance on the same AML-specific cells as human experts do. Applied to classify single cells, it is able to highlight subtype specific cells and deconvolve the composition of a patient's blood smear without the need of single-cell annotation of the training data. Our large AML genetic subtype dataset is publicly available, and an interactive online tool facilitates the exploration of data and predictions. SCEMILA enables a comparison of algorithmic and expert decision criteria and can present a detailed analysis of individual patient data, paving the way to deploy AI in the routine diagnostics for identifying hematopoietic neoplasms.
- Published
- 2023
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36. Data Models for Dataset Drift Controls in Machine Learning With Optical Images.
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Luis Oala, Marco Aversa, Gabriel Nobis, Kurt Willis, Yoan Neuenschwander, Michèle Buck, Christian Matek, Jérôme Extermann, Enrico Pomarico, Wojciech Samek, Roderick Murray-Smith, Christoph Clausen, and Bruno Sanguinetti
- Published
- 2023
37. Patterns of PCB-138 Occurrence in the Breast Milk of Primiparae and Multiparae Using SHapley Additive exPlanations Analysis
- Author
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Jovanović, Gordana, Matek Sarić, Marijana, Herceg Romanić, Snježana, Stanišić, Svetlana, Mitrović Dankulov, Marija, Popović, Aleksandar, Perišić, Mirjana, Kacprzyk, Janusz, Series Editor, and Pap, Endre, editor
- Published
- 2021
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38. Nursing students' knowledge and attitudes regarding brominated flame retardants from three Croatian universities
- Author
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Krešimir Jakšić, Marijana Matek Sarić, and Jelena Čulin
- Subjects
brominated flame retardants ,environmental health ,environmental health advocacy ,nursing students ,stockholm convention ,Other systems of medicine ,RZ201-999 ,Public aspects of medicine ,RA1-1270 - Abstract
Purpose – This study explored Croatian nursing students' knowledge and attitudes regarding brominated flame retardants (BFRs) as indicators of their predisposition to educate future patients. The purpose of the study was to identify knowledge gaps and barriers and to propose possible remedies. Design/methodology/approach – The cross-sectional survey was conducted on a convenience sample of 114 nursing students at undergraduate and graduate levels from three Croatian universities during the winter semester in the academic year 2018–2019. Descriptive and inferential statistical analyses were performed using STATISTICA 13 software. Findings – Slightly over half of the students (58.49%) were knowledgeable of BFR health effects and 45.28% showed knowledge about its presence in the environment. Only 33.02% of students identified prenatal exposure effects and 24.53% answered correctly about legislative actions. Participants expressed modest interest in the topic (M = 3.15, SD = 1.35). Although informing the public on the health consequences of BFRs was important to them (M = 4.18, SD = 1.03), they did not perceive health-care providers as primarily responsible for communicating that information. Originality/value – There is a need to enhance related content in the curriculum to improve students' knowledge. Raising students' awareness regarding the role of nurses in clinical and policy arenas is proposed to facilitate active participation in improving environmental health.
- Published
- 2022
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- View/download PDF
39. The Image of a Nation in Angie Thomas’s The Hate U Give (2017)
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Ljubica Matek and Jasna Poljak Rehlicki
- Subjects
Angie Thomas, The Hate U Give, populism, racism ,Social sciences (General) ,H1-99 - Abstract
The paper offers an imagological analysis of Thomas’s debut novel The Hate U Give (2017) with the aim of showing that the cultural image of the Black race is a firmly rooted construct in the United States. The analysis is based on the ideas proposed by Benedict Anderson in his Imagined Communities: Reflections on the Origin and Spread of Nationalism (2006) and suggests that despite the well-established theoretical ideas of American-ness and the greatness of the American nation, there is no single nation to speak of in the US society. Anderson suggests that the society has preconceived beliefs on members of certain (racial, ethnic) groups, which the novel clearly depicts through the novel’s protagonist, Starr Carter, who engages in code switching in order to get a better education and, thus, a chance for success outside of the black ghetto. The pre-established notions and stereotypes, often promoted via populist discourse of the dominant group, prevent unification of people into a nation and at the same time give rise to nationalism, racism, and hatred.
- Published
- 2022
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- View/download PDF
40. Phytoplankton diversity and chemotaxonomy in contrasting North Pacific ecosystems
- Author
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Antonija Matek, Sunčica Bosak, Luka Šupraha, Aimee Neeley, Hrvoje Višić, Ivona Cetinić, and Zrinka Ljubešić
- Subjects
Phytoplankton taxonomy ,Pigments ,Trophic state ,Particle abundance ,Medicine ,Biology (General) ,QH301-705.5 - Abstract
Background Phytoplankton is the base of majority of ocean ecosystems. It is responsible for half of the global primary production, and different phytoplankton taxa have a unique role in global biogeochemical cycles. In addition, phytoplankton abundance and diversity are highly susceptible to climate induced changes, hence monitoring of phytoplankton and its diversity is important and necessary. Methods Water samples for phytoplankton and photosynthetic pigment analyses were collected in boreal winter 2017, along transect in the North Pacific Subtropical Gyre (NPSG) and the California Current System (CCS). Phytoplankton community was analyzed using light and scanning electron microscopy and photosynthetic pigments by high-performance liquid chromatography. To describe distinct ecosystems, monthly average satellite data of MODIS Aqua Sea Surface temperature and Chlorophyll a concentration, as well as Apparent Visible Wavelength were used. Results A total of 207 taxa have been determined, mostly comprised of coccolithophores (35.5%), diatoms (25.2%) and dinoflagellates (19.5%) while cryptophytes, phytoflagellates and silicoflagellates were included in the group “others” (19.8%). Phytoplankton spatial distribution was distinct, indicating variable planktonic dispersal rates and specific adaptation to ecosystems. Dinoflagellates, and nano-scale coccolithophores dominated NPSG, while micro-scale diatoms, and cryptophytes prevailed in CCS. A clear split between CCS and NPSG is evident in dendogram visualising LINKTREE constrained binary divisive clustering analysis done on phytoplankton counts and pigment concentrations. Of all pigments determined, alloxanthin, zeaxanthin, divinyl chlorophyll b and lutein have highest correlation to phytoplankton counts. Conclusion Combining chemotaxonomy and microscopy is an optimal method to determine phytoplankton diversity on a large-scale transect. Distinct communities between the two contrasting ecosystems of North Pacific reveal phytoplankton groups specific adaptations to trophic state, and support the hypothesis of shift from micro- to nano-scale taxa due to sea surface temperatures rising, favoring stratification and oligotrophic conditions.
- Published
- 2023
- Full Text
- View/download PDF
41. Highly accurate differentiation of bone marrow cell morphologies using deep neural networks on a large image data set
- Author
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Matek, Christian, Krappe, Sebastian, Münzenmayer, Christian, Haferlach, Torsten, and Marr, Carsten
- Published
- 2021
- Full Text
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42. Motivations Associated with Food Choices among Adults from Urban Setting
- Author
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Ana Ilić, Ivana Rumbak, Dina Dizdarić, Marijana Matek Sarić, Irena Colić Barić, and Raquel Pinho Ferreira Guiné
- Subjects
eating behavior ,eating determinants ,food choices ,motivations ,urban setting ,Chemical technology ,TP1-1185 - Abstract
Motivation for food choices is one of the most important determinant of eating behavior, because it comes from within the person. The aim of this study was to observe food choice motivations and estimate differences in demographic and health characteristics towards food choice motives in the adult population (n = 675; 54% women, ≥18 years) from urban setting. Food choice motivations were assessed using an online questionnaire validated by the EATMOT project. Using K-Means cluster analysis, participants were divided into two clusters of six motivational categories for food choices. Regarding the most and least important motivations, participants in cluster 1 chose food based on emotional motivations, and in cluster 2, they chose based on environmental and political motivations. In addition, younger and obese individuals had more pronounced emotional motivations. In conclusion, this study emphasizes the need to address emotional motivations for healthier food choices among overweight and young people. In addition, the prevalence of health motivations and growing awareness of sustainability indicate a willingness to take actions that benefit personal health and the environment. Apart from providing education, it is society’s responsibility to create an environment that promotes the implementation of acquired knowledge and changes in dietary habits.
- Published
- 2023
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43. GitHub open source project recommendation system
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Matek, Tadej and Zebec, Svit Timej
- Subjects
Computer Science - Social and Information Networks - Abstract
Hosting platforms for software projects can form collaborative social networks and a prime example of this is GitHub which is arguably the most popular platform of this kind. An open source project recommendation system could be a major feature for a platform like GitHub, enabling its users to find relevant projects in a fast and simple manner. We perform network analysis on a constructed graph based on GitHub data and present a recommendation system that uses link prediction.
- Published
- 2016
44. Coarse-grained modelling of supercoiled RNA
- Author
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Matek, Christian, Šulc, Petr, Randisi, Ferdinando, Doye, Jonathan P. K., and Louis, Ard A.
- Subjects
Quantitative Biology - Biomolecules ,Condensed Matter - Soft Condensed Matter ,Physics - Biological Physics ,Physics - Chemical Physics - Abstract
We study the behaviour of double-stranded RNA under twist and tension using oxRNA, a recently developed coarse-grained model of RNA. Introducing explicit salt-dependence into the model allows us to directly compare our results to data from recent single-molecule experiments. The model reproduces extension curves as a function of twist and stretching force, including the buckling transition and the behaviour of plectoneme structures. For negative supercoiling, we predict denaturation bubble formation in plectoneme end-loops, suggesting preferential plectoneme localisation in weak base sequences. OxRNA exhibits a positive twist-stretch coupling constant, in agreement with recent experimental observations., Comment: 8 pages + 5 pages Supplementary Material
- Published
- 2015
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45. Abstract: A Database and Neural Network for Highly Accurate Classification of Single Bone Marrow Cells
- Author
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Matek, Christian, primary, Krappe, Sebastian, additional, Münzenmayer, Christian, additional, Haferlach, Torsten, additional, and Marr, Carsten, additional
- Published
- 2022
- Full Text
- View/download PDF
46. ML4H Auditing: From Paper to Practice.
- Author
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Luis Oala, Jana Fehr, Luca Gilli, Pradeep Balachandran, Alixandro Werneck Leite, Saúl Calderón Ramírez, Danny Xie Li, Gabriel Nobis, Erick Alejandro Muñoz Alvarado, Giovanna Jaramillo-Gutierrez, Christian Matek, Arun Shroff, Ferath Kherif, Bruno Sanguinetti, and Thomas Wiegand
- Published
- 2020
47. Expert-level detection of M-proteins in serum protein electrophoresis using machine learning.
- Author
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Elfert, Eike, Kaminski, Wolfgang E., Matek, Christian, Hoermann, Gregor, Axelsen, Eyvind W., Marr, Carsten, and Piehler, Armin P.
- Subjects
CONVOLUTIONAL neural networks ,BLOOD protein electrophoresis ,MACHINE learning ,MEDICAL technologists ,ARTIFICIAL intelligence - Abstract
Serum protein electrophoresis (SPE) in combination with immunotyping (IMT) is the diagnostic standard for detecting monoclonal proteins (M-proteins). However, interpretation of SPE and IMT is weakly standardized, time consuming and investigator dependent. Here, we present five machine learning (ML) approaches for automated detection of M-proteins on SPE on an unprecedented large and well-curated data set and compare the performance with that of laboratory experts. SPE and IMT were performed in serum samples from 69,722 individuals from Norway. IMT results were used to label the samples as M-protein present (positive, n=4,273) or absent (negative n=65,449). Four feature-based ML algorithms and one convolutional neural network (CNN) were trained on 68,722 randomly selected SPE patterns to detect M-proteins. Algorithm performance was compared to that of an expert group of clinical pathologists and laboratory technicians (n=10) on a test set of 1,000 samples. The random forest classifier showed the best performance (F1-Score 93.2 %, accuracy 99.1 %, sensitivity 89.9 %, specificity 99.8 %, positive predictive value 96.9 %, negative predictive value 99.3 %) and outperformed the experts (F1-Score 61.2 ± 16.0 %, accuracy 89.2 ± 10.2 %, sensitivity 94.3 ± 2.8 %, specificity 88.9 ± 10.9 %, positive predictive value 47.3 ± 16.2 %, negative predictive value 99.5 ± 0.2 %) on the test set. Interestingly the performance of the RFC saturated, the CNN performance increased steadily within our training set (n=68,722). Feature-based ML systems are capable of automated detection of M-proteins on SPE beyond expert-level and show potential for use in the clinical laboratory. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Edible Insects: Consumption, Perceptions, Culture and Tradition Among Adult Citizens from 14 Countries.
- Author
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Guiné, Raquel P. F., Florença, Sofia G., Costa, Cristina A., Correia, Paula M. R., Cruz-Lopes, Luísa, Esteves, Bruno, Ferreira, Manuela, Fragata, Anabela, Cardoso, Ana P., Campos, Sofia, Anjos, Ofélia, Boustani, Nada M., Bartkiene, Elena, Chuck-Hernández, Cristina, Djekic, Ilija, Tarcea, Monica, Sarić, Marijana Matek, Kruma, Zanda, Korzeniowska, Malgorzata, and Papageorgiou, Maria
- Subjects
EDIBLE insects ,FOOD shortages ,INSECT food ,FACTOR analysis ,CHI-squared test - Abstract
Although edible insects (EIs) are encouraged as a sustainable source of protein, their consumption is not as generalised as other types of food that are internationally accepted. While in some regions of the world, EIs are part of the gastronomic and cultural traditions, in other regions, people are not so receptive to this type of food, and some people even express some disgust towards it. Hence, this research focused on the habits of the participants regarding the consumption of insects as well as their perceptions about EIs being or not a part of the local culture or gastronomic patrimony. A questionnaire survey was implemented in fourteen countries (Brazil, Croatia, Greece, Latvia, Lebanon, Lithuania, Mexico, Poland, Portugal, Romania, Serbia, Slovenia, Spain, and Turkey), and globally, 7222 adult participants responded to the questionnaire. SPSS software (version 28) was used to process the data and carry out chi-square tests and Factor Analyses (FA). The obtained results showed significant differences between countries for all the questions included in the survey, either those regarding the habits of the participants or their opinions about the facts linked with EI tradition or cultural aspects. It was found that participants from Mexico consume EIs more than in all other countries and that strong motivations that would lead to consumption among those who do not consume include curiosity and food shortage. The solution obtained with FA considering the ten statements of the scale consisted of two factors: F1—Culture and Tradition of EIs (α = 0.675) and F2—Acceptance of EIs (α = 0.614). In conclusion, the consumption of EIs and the perceptions of people are highly variable according to geographic location and cultural environment. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
49. HLA-G expression associates with immune evasion muscleinvasive urothelial cancer and drives prognostic relevance.
- Author
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Branz, Annalena, Matek, Christian, Lange, Fabienne, Bahlinger, Veronika, Klümper, Niklas, Hölze, Michael, Strisse, Pamela L., Strick, Reiner, Sikic, Danijel, Wach, Sven, Taubert, Helge, Wullich, Bernd, Hartmann, Arndt, Seliger, Barbara, and Eckstein, and Markus
- Subjects
IMMUNE checkpoint proteins ,MYELOID-derived suppressor cells ,HEMATOPOIETIC stem cell transplantation ,REGULATORY T cells ,CYTOTOXIC T cells ,BLADDER cancer - Abstract
The article in Frontiers in Immunology, published on October 14, 2024, examines the relationship between HLA-G expression and immune evasion in muscle-invasive urothelial cancer, as well as its prognostic significance. The study, which involved 241 patients with muscle-invasive bladder cancer, found that high levels of HLA-G were associated with poorer overall and disease-specific survival, regardless of clinicopathological factors. The research also identified differences in HLA-G expression across molecular subtypes and urothelial subtype histology, particularly in tumors with an immune evasive microenvironment. Furthermore, HLA-G was observed to be co-expressed with other immune checkpoint proteins, suggesting its involvement in immune evasion mechanisms and potential utility as a prognostic marker and immunotherapeutic target in muscle-invasive bladder cancer. [Extracted from the article]
- Published
- 2024
- Full Text
- View/download PDF
50. Tens of images can suffice to train neural networks for malignant leukocyte detection
- Author
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Jens P. E. Schouten, Christian Matek, Luuk F. P. Jacobs, Michèle C. Buck, Dragan Bošnački, and Carsten Marr
- Subjects
Medicine ,Science - Abstract
Abstract Convolutional neural networks (CNNs) excel as powerful tools for biomedical image classification. It is commonly assumed that training CNNs requires large amounts of annotated data. This is a bottleneck in many medical applications where annotation relies on expert knowledge. Here, we analyze the binary classification performance of a CNN on two independent cytomorphology datasets as a function of training set size. Specifically, we train a sequential model to discriminate non-malignant leukocytes from blast cells, whose appearance in the peripheral blood is a hallmark of leukemia. We systematically vary training set size, finding that tens of training images suffice for a binary classification with an ROC-AUC over 90%. Saliency maps and layer-wise relevance propagation visualizations suggest that the network learns to increasingly focus on nuclear structures of leukocytes as the number of training images is increased. A low dimensional tSNE representation reveals that while the two classes are separated already for a few training images, the distinction between the classes becomes clearer when more training images are used. To evaluate the performance in a multi-class problem, we annotated single-cell images from a acute lymphoblastic leukemia dataset into six different hematopoietic classes. Multi-class prediction suggests that also here few single-cell images suffice if differences between morphological classes are large enough. The incorporation of deep learning algorithms into clinical practice has the potential to reduce variability and cost, democratize usage of expertise, and allow for early detection of disease onset and relapse. Our approach evaluates the performance of a deep learning based cytology classifier with respect to size and complexity of the training data and the classification task.
- Published
- 2021
- Full Text
- View/download PDF
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