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  1. Book ; Online: Recent Advances and Applications of Machine Learning in Metal Forming Processes

    Prates, Pedro / Pereira, André / Pereira, André

    2022  

    Keywords Technology: general issues ; History of engineering & technology ; Mining technology & engineering ; sheet metal forming ; uncertainty analysis ; metamodeling ; machine learning ; hot rolling strip ; edge defects ; intelligent recognition ; convolutional neural networks ; deep-drawing ; kriging metamodeling ; multi-objective optimization ; FE (Finite Element) AutoForm robust analysis ; defect prediction ; mechanical properties prediction ; high-dimensional data ; feature selection ; maximum information coefficient ; complex network clustering ; ring rolling ; process energy estimation ; metal forming ; thermo-mechanical FEM analysis ; artificial neural network ; aluminum alloy ; mechanical property ; UTS ; topological optimization ; artificial neural networks (ANN) ; machine learning (ML) ; press-brake bending ; air-bending ; three-point bending test ; sheet metal ; buckling instability ; oil canning ; artificial intelligence ; convolution neural network ; hot rolled strip steel ; defect classification ; generative adversarial network ; attention mechanism ; deep learning ; mechanical constitutive model ; finite element analysis ; plasticity ; parameter identification ; full-field measurements ; n/a
    Language English
    Size 1 electronic resource (210 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel
    Document type Book ; Online
    Note English
    HBZ-ID HT030374318
    ISBN 9783036557724 ; 3036557725
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: Conversational production and comprehension: fMRI-evidence reminiscent of but deviant from the classical Broca-Wernicke model.

    Arvidsson, Caroline / Torubarova, Ekaterina / Pereira, André / Uddén, Julia

    Cerebral cortex (New York, N.Y. : 1991)

    2024  Volume 34, Issue 3

    Abstract: A key question in research on the neurobiology of language is to which extent the language production and comprehension systems share neural infrastructure, but this question has not been addressed in the context of conversation. We utilized a public ... ...

    Abstract A key question in research on the neurobiology of language is to which extent the language production and comprehension systems share neural infrastructure, but this question has not been addressed in the context of conversation. We utilized a public fMRI dataset where 24 participants engaged in unscripted conversations with a confederate outside the scanner, via an audio-video link. We provide evidence indicating that the two systems share neural infrastructure in the left-lateralized perisylvian language network, but diverge regarding the level of activation in regions within the network. Activity in the left inferior frontal gyrus was stronger in production compared to comprehension, while comprehension showed stronger recruitment of the left anterior middle temporal gyrus and superior temporal sulcus, compared to production. Although our results are reminiscent of the classical Broca-Wernicke model, the anterior (rather than posterior) temporal activation is a notable difference from that model. This is one of the findings that may be a consequence of the conversational setting, another being that conversational production activated what we interpret as higher-level socio-pragmatic processes. In conclusion, we present evidence for partial overlap and functional asymmetry of the neural infrastructure of production and comprehension, in the above-mentioned frontal vs temporal regions during conversation.
    MeSH term(s) Humans ; Comprehension/physiology ; Magnetic Resonance Imaging/methods ; Communication ; Language ; Prefrontal Cortex ; Brain Mapping
    Language English
    Publishing date 2024-03-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1077450-6
    ISSN 1460-2199 ; 1047-3211
    ISSN (online) 1460-2199
    ISSN 1047-3211
    DOI 10.1093/cercor/bhae073
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3235: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  3. Article: Anorexia Nervosa and Osteoporosis: A Possible Complication to Remember.

    Rosas Pereira, André / Costa, Marta / Costa, Gustavo G / Carvalho, Ana Sofia

    Cureus

    2024  Volume 16, Issue 1, Page(s) e52670

    Abstract: Anorexia nervosa (AN) belongs to the spectrum of food disorders and affects approximately 2.9 million people worldwide. It is responsible for numerous and serious medical complications. Osteoporosis is a common complication, and the decrease in bone ... ...

    Abstract Anorexia nervosa (AN) belongs to the spectrum of food disorders and affects approximately 2.9 million people worldwide. It is responsible for numerous and serious medical complications. Osteoporosis is a common complication, and the decrease in bone mineral density (BMD) is one of the few potentially irreversible consequences of AN. When associated with AN, it can manifest at a very young age, possibly leading to irreparable damage. We describe the case of a 30-year-old woman with a one-year evolution diagnosis of AN, complaining of back pain. Physical examination revealed a slight elevation of the right shoulder and pain at compression of paravertebral right dorsal musculature with a palpable strained muscle. Full-length X-ray imaging of the dorsal spine revealed a slight dextroconvex dorsolumbar scoliosis. A dorsal spine computerized tomography (CT) was performed, confirming a fracture of the upper platform of the sixth dorsal vertebrae. Osteodensitometry showed lumbar spine osteoporosis and femoral osteopenia. The decrease in BMD and, later on, the development of osteoporosis can occur in both types of AN. It is a severe complication that affects up to 50% of these patients. It can be irreversible and increase the lifetime risk of bone fractures and, therefore, morbimortality. Low body weight and body mass index (BMI) strongly correlate with the decrease in BMD. Treatment of osteoporosis associated with AN is not standardized and clearly labeled. Weight gain is described as the strategy with the most impact in reversing the loss of bone mass and increasing the BMD. The regularization of gonadal function also seems to independently potentiate the increase of BMD. The occurrence of long bone and vertebrae fractures frequently results in a decrease in height and chronic back pain, culminating in greater morbimortality and healthcare costs. This clinical case aims to show theclose relationship between restrictive food disorders and the decrease of BMD and the subsequent development of osteoporosis and its complications. Although rare in young and healthy people, when associated with restrictive food disorders, it should raise a red flag in its clinical evaluation. Preventing osteoporosis development and reduction of fracture risk in this population is essential. The current absence of consistent evidence regarding screening of osteoporosis in this particular group should raise awareness and promote further larger-scale studies to establish standardized recommendations concerning not only screening but also pharmacological treatment of osteoporosis in patients with AN.
    Language English
    Publishing date 2024-01-21
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.52670
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Sources of intraspecific variation in the isotopic niche of a semi-aquatic predator in a human-modified landscape.

    Pereira, André Costa / Nardoto, Gabriela Bielefeld / Colli, Guarino Rinaldi

    PeerJ

    2023  Volume 11, Page(s) e15915

    Abstract: Intraspecific variation modulates patterns of resource use by species, potentially affecting the structure and stability of food webs. In human-modified landscapes, habitat disturbance modifies trophic interactions and intraspecific niche variation, ... ...

    Abstract Intraspecific variation modulates patterns of resource use by species, potentially affecting the structure and stability of food webs. In human-modified landscapes, habitat disturbance modifies trophic interactions and intraspecific niche variation, impacting population persistence. Here, we investigated the relationship of sex, ontogeny, and habitat factors with the trophic niche of
    MeSH term(s) Humans ; Adult ; Female ; Male ; Animals ; Agriculture ; Alligators and Crocodiles ; Body Size ; Carbon ; Nitrogen ; Nitrogen Isotopes
    Chemical Substances Carbon (7440-44-0) ; Nitrogen (N762921K75) ; Nitrogen Isotopes
    Language English
    Publishing date 2023-08-30
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2703241-3
    ISSN 2167-8359 ; 2167-8359
    ISSN (online) 2167-8359
    ISSN 2167-8359
    DOI 10.7717/peerj.15915
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: A Study of the Mechanical Behaviour of Boron Nitride Nanosheets Using Numerical Simulation.

    Sakharova, Nataliya A / Pereira, André F G / Antunes, Jorge M

    Nanomaterials (Basel, Switzerland)

    2023  Volume 13, Issue 20

    Abstract: Hexagonal boron nitride (h-BN) nanosheets are attractive materials for various applications that require efficient heat transfer, surface adsorption capability, biocompatibility, and flexibility, such as optoelectronics and power electronics devices, ... ...

    Abstract Hexagonal boron nitride (h-BN) nanosheets are attractive materials for various applications that require efficient heat transfer, surface adsorption capability, biocompatibility, and flexibility, such as optoelectronics and power electronics devices, nanoelectromechanical systems, and aerospace industry. Knowledge of the mechanical behavior of boron nitride nanosheets is necessary to achieve accurate design and optimal performance of h-BN-based nanodevices and nanosystems. In this context, the Young's and shear moduli and Poisson's ratio of square and rectangular boron nitride nanosheets were evaluated using the nanoscale continuum modeling approach, also known as molecular structural mechanics. The latter allows robust and rapid assessment of the elastic constants of nanostructures with graphene-like lattices. To date, there is a lack of systematic research regarding the influence of input parameters for numerical simulation, loading conditions, size, and aspect ratio on the elastic properties of the h-BN nanosheets. The current study contributes to filling this gap. The results allow, on the one hand, to point out the input parameters that lead to better agreement with those available in the literature. On the other hand, the Young's and shear moduli, and Poisson's ratio calculated in the present work contribute to a benchmark for the evaluation of elastic constants of h-BN nanosheets using theoretical methods.
    Language English
    Publishing date 2023-10-13
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano13202759
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Genomic epidemiology sheds light on the emergence and spread of

    Pereira, André C / Reis, Ana C / Cunha, Mónica V

    Emerging microbes & infections

    2023  Volume 12, Issue 2, Page(s) 2253340

    Abstract: ... ...

    Abstract ABSTRACT
    MeSH term(s) Mycobacterium bovis ; Animals ; Cattle ; Sus scrofa ; Deer ; Tuberculosis/epidemiology ; Tuberculosis/microbiology ; Tuberculosis/transmission ; Tuberculosis/veterinary ; Tuberculosis, Bovine/epidemiology ; Tuberculosis, Bovine/microbiology ; Tuberculosis, Bovine/transmission ; Portugal/epidemiology ; Phylogeny
    Language English
    Publishing date 2023-09-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2681359-2
    ISSN 2222-1751 ; 2222-1751
    ISSN (online) 2222-1751
    ISSN 2222-1751
    DOI 10.1080/22221751.2023.2253340
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Unlocking environmental contamination of animal tuberculosis hotspots with viable mycobacteria at the intersection of flow cytometry, PCR, and ecological modelling.

    Pereira, André C / Pinto, Daniela / Cunha, Mónica V

    The Science of the total environment

    2023  Volume 891, Page(s) 164366

    Abstract: Mycobacterium bovis, a member of the Mycobacterium tuberculosis complex (MTBC), circulates in multi-host mammal communities. While interactions between different host species are mainly indirect, current knowledge postulates interspecific transmission is ...

    Abstract Mycobacterium bovis, a member of the Mycobacterium tuberculosis complex (MTBC), circulates in multi-host mammal communities. While interactions between different host species are mainly indirect, current knowledge postulates interspecific transmission is favored by animal contact with natural substrates contaminated with droplets and fluids from infected animals. However, methodological constraints have severely hampered monitoring of MTBC outside its hosts and the subsequent validation of this hypothesis. In this work, we aimed to evaluate the extent to which environmental contamination with M. bovis occurs in an endemic animal TB setting, taking advantage of a new real-time monitoring tool we recently developed to quantify the proportion of viable and dormant MTBC cell fractions in environmental matrices. Sixty-five natural substrates were collected nearby the International Tagus Natural Park region, in the epidemiological TB risk area in Portugal. These included sediments, sludge, water, and food deployed at unfenced feeding stations. The tripartite workflow included detection, quantification, and sorting of different M. bovis cell populations: total, viable, and dormant. Real-time PCR targeting IS6110 to detect MTBC DNA was performed in parallel. The majority of samples (54 %) contained metabolically active or dormant MTBC cells. Sludge samples had a higher burden of total MTBC cells and a high concentration of viable cells (2.3 × 10
    MeSH term(s) Animals ; Humans ; Mycobacterium tuberculosis/genetics ; Flow Cytometry ; Sewage ; Tuberculosis ; Real-Time Polymerase Chain Reaction ; Mammals
    Chemical Substances Sewage
    Language English
    Publishing date 2023-05-26
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.164366
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 949: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  8. Article ; Online: Unlocking environmental contamination of animal tuberculosis hotspots with viable mycobacteria at the intersection of flow cytometry, PCR, and ecological modelling

    Pereira, André C. / Pinto, Daniela / Cunha, Monica V.

    Science of the Total Environment. 2023 Sept., v. 891 p.164366-

    2023  

    Abstract: Mycobacterium bovis, a member of the Mycobacterium tuberculosis complex (MTBC), circulates in multi-host mammal communities. While interactions between different host species are mainly indirect, current knowledge postulates interspecific transmission is ...

    Abstract Mycobacterium bovis, a member of the Mycobacterium tuberculosis complex (MTBC), circulates in multi-host mammal communities. While interactions between different host species are mainly indirect, current knowledge postulates interspecific transmission is favored by animal contact with natural substrates contaminated with droplets and fluids from infected animals. However, methodological constraints have severely hampered monitoring of MTBC outside its hosts and the subsequent validation of this hypothesis. In this work, we aimed to evaluate the extent to which environmental contamination with M. bovis occurs in an endemic animal TB setting, taking advantage of a new real-time monitoring tool we recently developed to quantify the proportion of viable and dormant MTBC cell fractions in environmental matrices. Sixty-five natural substrates were collected nearby the International Tagus Natural Park region, in the epidemiological TB risk area in Portugal. These included sediments, sludge, water, and food deployed at unfenced feeding stations. The tripartite workflow included detection, quantification, and sorting of different M. bovis cell populations: total, viable, and dormant. Real-time PCR targeting IS6110 to detect MTBC DNA was performed in parallel. The majority of samples (54 %) contained metabolically active or dormant MTBC cells. Sludge samples had a higher burden of total MTBC cells and a high concentration of viable cells (2.3 × 10⁴ cells/g). Ecological modelling informed by climate, land use, livestock and human disturbance data suggested eucalyptus forest and pasture cover as potential major factors affecting the occurrence of viable MTBC cells in natural matrices. Our study demonstrates, for the first time, the widespread environmental contamination of animal TB hotspots with viable MTBC bacteria and with dormant MTBC cells that are able to recover metabolic activity. Further, we show that viable MTBC cell load in natural substrates is superior to the estimated minimum infective dose, providing real-time insights into the potential magnitude of environmental contamination for indirect TB transmission.
    Keywords DNA ; Eucalyptus ; Mycobacterium bovis ; anthropogenic activities ; biochemical pathways ; climate ; environment ; flow cytometry ; forests ; hosts ; indigenous species ; land use ; livestock ; mammals ; pastures ; pollution ; quantitative polymerase chain reaction ; risk ; sludge ; tuberculosis ; Portugal ; Mycobacterium tuberculosis complex ; Animal tuberculosis ; Environmental contamination ; One health ; Ecological modelling
    Language English
    Dates of publication 2023-09
    Publishing place Elsevier B.V.
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.164366
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 74/341: Show issues

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  9. Article ; Online: Leishmania

    Pereira, André / Maia, Carla

    Current research in parasitology & vector-borne diseases

    2021  Volume 1, Page(s) 100035

    Abstract: Leishmaniosis is a vector-borne disease caused by protozoans of the ... ...

    Abstract Leishmaniosis is a vector-borne disease caused by protozoans of the genus
    Language English
    Publishing date 2021-06-02
    Publishing country Netherlands
    Document type Journal Article ; Review
    ISSN 2667-114X
    ISSN (online) 2667-114X
    DOI 10.1016/j.crpvbd.2021.100035
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Ecotoxicological Effects of Potassium Dichromate on the Tadpole Shrimp

    Pereira, André Carido / Saraiva, Aurélia / Oliva-Teles, Luís / Guimarães, Laura / Carvalho, António Paulo

    Animals : an open access journal from MDPI

    2024  Volume 14, Issue 3

    Abstract: The tadpole ... ...

    Abstract The tadpole shrimp
    Language English
    Publishing date 2024-01-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani14030358
    Database MEDical Literature Analysis and Retrieval System OnLINE

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