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  1. Book ; Conference proceedings: Biological and medical data analysis

    Oliveira, José Luis

    6th international symposium ; proceedings

    (Lecture notes in computer science ; 3745 : Lecture notes in bioinformatics)

    2005  

    Event/congress ISBMDA (6, 2005, Aveiro)
    Author's details ISBMDA 2005, Aveiro, Portugal, November 10 - 11, 2005. José Luis Oliveira ... (ed.)
    Series title Lecture notes in computer science ; 3745 : Lecture notes in bioinformatics
    Collection
    Keywords Medical Informatics Applications ; Medical Informatics Computing ; Computational Biology / methods ; Medizin ; Datenanalyse ; Bildgebendes Verfahren ; Wissensverarbeitung ; Bioinformatik
    Subject Statistische Auswertung ; Datenauswertung ; Statistische Datenanalyse ; Data analysis ; Data-analysis ; Humanmedizin ; Heilkunst ; Medicine ; Informationsverarbeitung ; Knowledge processing ; Bildgebendes Diagnoseverfahren ; Diagnostik ; Bilddiagnostik ; Bildgebende Methode ; Medical Imaging ; Medizinische Bildgebung ; Bildgebende Diagnostik ; Bildgebende Verfahren ; Imaging
    Language English
    Size XII, 402 S. : Ill., graph. Darst.
    Publisher Springer
    Publishing place Berlin u.a.
    Publishing country Germany
    Document type Book ; Conference proceedings
    HBZ-ID HT014553670
    ISBN 978-3-540-29674-4 ; 3-540-29674-3
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    2007 A 1829 order for loan Magazin

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  2. Article ; Online: Notes about second homes and teleworking

    Oliveira, José

    Finisterra; Vol. 55 Núm. 115 (AOP) (2020): Numero especial: COVID-19 ; Finisterra; vol. 55 n.º 115 (AOP) (2020): Número especial: COVID-19 ; 2281-4574 ; 0430-5027

    : comparing Portugal and Norway ; Algumas notas sobre segundas residências e teletrabalho: : comparando Portugal e Noruega

    2020  

    Abstract: Portugal and Norway are two contrasting countries, not only in terms of attributes and levels of development, but also in the way they are dealing with the pandemic. Telecommuting, as a reality idealized in the late 1960s and sufficiently evaluated since ...

    Abstract Portugal and Norway are two contrasting countries, not only in terms of attributes and levels of development, but also in the way they are dealing with the pandemic. Telecommuting, as a reality idealized in the late 1960s and sufficiently evaluated since the 1980s, was a common practice in both countries for a long time, especially in individual intellectual immersion work. Working without leaving the home might be desired, in Portugal people were asked not to move out of their homes, while in Norway they were asked to return from their second homes to their first homes. These were two opposite ways of facing a phenomenon that increasingly marks, largely in a hidden way, the Portuguese landscapes, but in a segmented and clear way, the Norwegian landscapes. In both cases, the future challenge will be to create conditions for people to be able to live and work in their home, be it the first or the second.

    Portugal e Noruega são dois países contrastados, não só nos atributos e níveis de desenvolvimento, mas também na forma de lidar com a pandemia. O teletrabalho, enquanto realidade idealizada em finais dos anos 60 e suficientemente avaliada já desde os anos 80 do século XX, já era há muito tempo uma prática comum em ambos os países, sobretudo em trabalhos de imersão intelectual individual. Trabalhar sem sair da casa idealizada, podia ser um desejo, mas, em tempos de pandemia, em Portugal pedia-se às pessoas que não se deslocassem para fora das suas residências; e na Noruega pedia-se que regressassem das suas segundas às primeiras residências. Foram duas formas opostas de encarar um fenómeno que cada vez mais marca, em grande parte de forma escondida, as paisagens portuguesas, mas de forma segmentada e clara, as paisagens norueguesas. Em ambos os casos, o desafio futuro será o de criar condições para que as pessoas possam estar e trabalhar na sua residência, seja ela a primeira ou a segunda.
    Keywords covid19
    Language Portuguese
    Publishing date 2020-11-11
    Publisher Centro de Estudos Geográficos
    Publishing country pt
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: A federated authentication schema among multiple identity providers.

    Almeida, João Rafael / Zúquete, André / Pazos, Alejandro / Oliveira, José Luís

    Heliyon

    2024  Volume 10, Issue 7, Page(s) e28560

    Abstract: Single Sign-On (SSO) methods are the primary solution to authenticate users across multiple web systems. These mechanisms streamline the authentication procedure by avoiding duplicate developments of authentication modules for each application. Besides, ... ...

    Abstract Single Sign-On (SSO) methods are the primary solution to authenticate users across multiple web systems. These mechanisms streamline the authentication procedure by avoiding duplicate developments of authentication modules for each application. Besides, these mechanisms also provide convenience to the end-user by keeping the user authenticated when switching between different contexts. To ensure this cross-application authentication, SSO relies on an Identity Provider (IdP), which is commonly set up and managed by each institution that needs to enforce SSO internally. However, the solution is not so straightforward when several institutions need to cooperate in a unique ecosystem. This could be tackled by centralizing the authentication mechanisms in one of the involved entities, a solution raising responsibilities that may be difficult for peers to accept. Moreover, this solution is not appropriate for dynamic groups, where peers may join or leave frequently. In this paper, we propose an architecture that uses a trusted third-party service to authenticate multiple entities, ensuring the isolation of the user's attributes between this service and the institutional SSO systems. This architecture was validated in the EHDEN Portal, which includes web tools and services of this European health project, to establish a Federated Authentication schema.
    Language English
    Publishing date 2024-03-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e28560
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Corrigendum: Tell me where you live… How the perceived entitativity of neighborhoods determines the formation of impressions about their residents.

    Bernardo, Fátima / Palma-Oliveira, José Manuel

    Frontiers in psychology

    2023  Volume 14, Page(s) 1201521

    Abstract: This corrects the article DOI: 10.3389/fpsyg.2022.821786.]. ...

    Abstract [This corrects the article DOI: 10.3389/fpsyg.2022.821786.].
    Language English
    Publishing date 2023-04-28
    Publishing country Switzerland
    Document type Published Erratum
    ZDB-ID 2563826-9
    ISSN 1664-1078
    ISSN 1664-1078
    DOI 10.3389/fpsyg.2023.1201521
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Investigation on the Feasibility of the Use of Biosolid-Soil Mixtures for Zinc Retention in Waste Landfill Barriers

    Artuso, Fabiana / Lukiantchuki, Juliana / Oliveira, Jose / Tarazona, Samuel / Almeida, Márcio / Benatti, Cláudia Telles

    Soil and Sediment Contamination: An International Journal. 2024 Jan. 02, v. 33, no. 1 p.23-42

    2024  

    Abstract: The stabilized sewage sludge, biosolid, has been widely investigated but despite numerous studies few ones have monitored the retention potential of metal ions of this material. This study aimed to investigate the zinc retention in biosolid-soil mixtures ...

    Abstract The stabilized sewage sludge, biosolid, has been widely investigated but despite numerous studies few ones have monitored the retention potential of metal ions of this material. This study aimed to investigate the zinc retention in biosolid-soil mixtures with different biosolid contents. The potential of zinc retention was evaluated using a physical model in a geotechnical centrifuge. The physical model was designed to represent a waste barrier of 3.75 m and to simulate a 1-year zinc percolation through the biosolid-soil layer. During the percolation, the zinc effluent was collected to monitoring its concentration over the time. Results show that the addition of 50% of biosolid in the soil, among other investigated proportions provided reductions up to 95% of the initial zinc concentration, considering a 300 days zinc percolation, while the natural soil, for the same period, provided reduction of 33%. The results clearly demonstrate that the incorporation of biosolid in the soil improved the zinc retention capacity. Chemical analysis suggested that the retention behavior of the biosolid is associated with the presence of organic matter and the pH value. The results are promising regarding the use of biosolid-soil mixtures in waste landfill barriers.
    Keywords chemical analysis ; landfills ; models ; organic matter ; pH ; sediment contamination ; sewage sludge ; soil ; zinc ; biosolid ; heavy metal retention ; waste landfill barriers
    Language English
    Dates of publication 2024-0102
    Size p. 23-42.
    Publishing place Taylor & Francis
    Document type Article ; Online
    ZDB-ID 2017739-2
    ISSN 1549-7887 ; 1532-0383
    ISSN (online) 1549-7887
    ISSN 1532-0383
    DOI 10.1080/15320383.2023.2174071
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 6090: Show issues

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  6. Article ; Online: EXPEDIENTE

    Oliveira, Jose Silvio

    Itinerarius Reflectionis; v. 16 n.; 01-07 ; 1807-9342 ; 1679-2009

    2020  Volume 1, Issue : Educação Brasileira e a Ead no contexto da pandemia de Covid- 19: perspectivas e desafios

    Abstract: ...

    Abstract .
    Keywords covid19
    Language Portuguese
    Publishing date 2020-10-27
    Publisher Universidade Federal de Goiás
    Publishing country br
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Cross-evaluation of social mining for classification of depressed online personas.

    Trifan, Alina / Oliveira, José Luis

    Journal of integrative bioinformatics

    2021  Volume 18, Issue 2, Page(s) 101–110

    Abstract: With the continuous increase in the use of social networks, social mining is steadily becoming a powerful component of digital phenotyping. In this paper we explore social mining for the classification of self-diagnosed depressed users of Reddit as ... ...

    Abstract With the continuous increase in the use of social networks, social mining is steadily becoming a powerful component of digital phenotyping. In this paper we explore social mining for the classification of self-diagnosed depressed users of Reddit as social network. We conduct a cross evaluation study based on two public datasets in order to understand the impact of transfer learning when the data source is virtually the same. We further complement these results with an experiment of transfer learning in post-partum depression classification, using a corpus we have collected for the matter. Our findings show that transfer learning in social mining might still be at an early stage in computational research and we thoroughly discuss its implications.
    MeSH term(s) Data Mining ; Machine Learning
    Language English
    Publishing date 2021-05-20
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2147212-9
    ISSN 1613-4516 ; 1613-4516
    ISSN (online) 1613-4516
    ISSN 1613-4516
    DOI 10.1515/jib-2020-0051
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A Data Augmentation Methodology to Reduce the Class Imbalance in Histopathology Images.

    Escobar Díaz Guerrero, Rodrigo / Carvalho, Lina / Bocklitz, Thomas / Popp, Juergen / Oliveira, José Luis

    Journal of imaging informatics in medicine

    2024  

    Abstract: Deep learning techniques have recently yielded remarkable results across various fields. However, the quality of these results depends heavily on the quality and quantity of data used during the training phase. One common issue in multi-class and multi- ... ...

    Abstract Deep learning techniques have recently yielded remarkable results across various fields. However, the quality of these results depends heavily on the quality and quantity of data used during the training phase. One common issue in multi-class and multi-label classification is class imbalance, where one or several classes make up a substantial portion of the total instances. This imbalance causes the neural network to prioritize features of the majority classes during training, as their detection leads to higher scores. In the context of object detection, two types of imbalance can be identified: (1) an imbalance between the space occupied by the foreground and background and (2) an imbalance in the number of instances for each class. This paper aims to address the second type of imbalance without exacerbating the first. To achieve this, we propose a modification of the copy-paste data augmentation technique, combined with weight-balancing methods in the loss function. This strategy was specifically tailored to improve the performance in datasets with a high instance density, where instance overlap could be detrimental. To validate our methodology, we applied it to a highly unbalanced dataset focused on nuclei detection. The results show that this hybrid approach improves the classification of minority classes without significantly compromising the performance of majority classes.
    Language English
    Publishing date 2024-03-14
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2948-2933
    ISSN (online) 2948-2933
    DOI 10.1007/s10278-024-01018-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: MMIR: an open-source software for the registration of multimodal histological images.

    Escobar Díaz Guerrero, Rodrigo / Oliveira, José Luis / Popp, Juergen / Bocklitz, Thomas

    BMC medical informatics and decision making

    2024  Volume 24, Issue 1, Page(s) 65

    Abstract: Background: Multimodal histology image registration is a process that transforms into a common coordinate system two or more images obtained from different microscopy modalities. The combination of information from various modalities can contribute to a ...

    Abstract Background: Multimodal histology image registration is a process that transforms into a common coordinate system two or more images obtained from different microscopy modalities. The combination of information from various modalities can contribute to a comprehensive understanding of tissue specimens, aiding in more accurate diagnoses, and improved research insights. Multimodal image registration in histology samples presents a significant challenge due to the inherent differences in characteristics and the need for tailored optimization algorithms for each modality.
    Results: We developed MMIR a cloud-based system for multimodal histological image registration, which consists of three main modules: a project manager, an algorithm manager, and an image visualization system.
    Conclusion: Our software solution aims to simplify image registration tasks with a user-friendly approach. It facilitates effective algorithm management, responsive web interfaces, supports multi-resolution images, and facilitates batch image registration. Moreover, its adaptable architecture allows for the integration of custom algorithms, ensuring that it aligns with the specific requirements of each modality combination. Beyond image registration, our software enables the conversion of segmented annotations from one modality to another.
    MeSH term(s) Humans ; Software ; Algorithms
    Language English
    Publishing date 2024-03-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2046490-3
    ISSN 1472-6947 ; 1472-6947
    ISSN (online) 1472-6947
    ISSN 1472-6947
    DOI 10.1186/s12911-024-02424-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Physiological and metabolic responses of Parabadminton athletes to field simulated effort.

    Oliveira, Saulo F / Oliveira, José I / Winckler, Ciro / Lourenço, Thiago F / Haiachi, Marcelo C / Felder, Hanno

    The Journal of sports medicine and physical fitness

    2024  

    Abstract: Background: Due to the increase in the number of Parabadminton (PBd) athletes and the lack of scientific knowledge of the sport, it is important to evaluate performance variables in different game stimuli. Thus, this study sought to examine the ... ...

    Abstract Background: Due to the increase in the number of Parabadminton (PBd) athletes and the lack of scientific knowledge of the sport, it is important to evaluate performance variables in different game stimuli. Thus, this study sought to examine the physiological and metabolic responses in a simulated effort protocol in PBd athletes.
    Methods: Forty-seven volunteers (WH1=7; WH2=9; SL3=8; SL4=9; SU5=6; SH6=8) performed a simulated effort protocol, consisting of 2 blocks of activities (1
    Results: Differences were found between the stages of the protocol in VO<inf>2</inf>peak (P=0.0008), VO<inf>2</inf>avg (P=0.0004); HRmax (P<0.0001); %HRmax (P=0.0001), HRavg (P=0.0001), %CARB (P=0.0001), %FAT (P=0.0001), EEavg (P=0.0002), and EEtotal (P=0.008). Among FCs, SL4 athletes were superior to WH1 athletes for VO<inf>2</inf>peak (P=0.075), VO<inf>2</inf>avg (P=0.022), EEavg (P=0.011), and EEtotal (P=0.022). Athletes who completed protocol in the full court were greater than half court for VO<inf>2</inf>peak (P<0.001), VO<inf>2</inf>avg (P<0.001), %HRmax (P=0.032), HRavg (P=0.018), %CARB (P=0.022), %FAT (P=0.022), and EEavg (P=0.016).
    Conclusions: PBd athletes belonging to higher FCs (4, 5, and 6) and who cover greater distances on the court exhibit physiological and metabolic responses under greater influence of the type of disability.
    Language English
    Publishing date 2024-04-10
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 410823-1
    ISSN 1827-1928 ; 0022-4707
    ISSN (online) 1827-1928
    ISSN 0022-4707
    DOI 10.23736/S0022-4707.24.15745-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.B 326: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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