LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 17

Search options

  1. Article ; Online: Correction to: Mutual facilitation between activity-based anorexia and schedule-induced polydipsia in rats.

    Labajos, María José / Calcagni, Gianluca / Pellón, Ricardo

    Learning & behavior

    2023  Volume 51, Issue 4, Page(s) 521

    Language English
    Publishing date 2023-09-20
    Publishing country United States
    Document type Published Erratum
    ZDB-ID 2048665-0
    ISSN 1543-4508 ; 1543-4494
    ISSN (online) 1543-4508
    ISSN 1543-4494
    DOI 10.3758/s13420-023-00603-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Mutual facilitation between activity-based anorexia and schedule-induced polydipsia in rats.

    Labajos, María José / Calcagni, Gianluca / Pellón, Ricardo

    Learning & behavior

    2023  Volume 51, Issue 4, Page(s) 502–520

    Abstract: The objective of this study was to evaluate the possible relationship between drinking (licks) in the schedule-induced polydipsia (SIP) phenomenon and running (turns in the wheel) in the activity-based anorexia (ABA) one. Within-subjects counterbalanced ... ...

    Abstract The objective of this study was to evaluate the possible relationship between drinking (licks) in the schedule-induced polydipsia (SIP) phenomenon and running (turns in the wheel) in the activity-based anorexia (ABA) one. Within-subjects counterbalanced experiments were designed with male Wistar rats which underwent both behavioral procedures; half of them performed the ABA procedure first and the other half the SIP procedure first. In Experiment 1, the initial development of ABA facilitated the subsequent acquisition of SIP, whereas the first acquisition of SIP retarded the subsequent development of ABA. Given that SIP exposure implied food restriction, it could be that adaptation to the food regime contributed to lowering ABA manifestation. Thus, Experiment 2 was carried out in exactly the same way as Experiment 1, with the exception that animals which first went through SIP prior to undergoing the ABA procedure had no food restriction. In this case, both ABA and SIP as first experiences facilitated the further development of SIP and ABA, respectively. This suggests that running in ABA may be functionally similar to drinking in SIP; therefore, both behaviors can be thought of as induced by the schedule/regime of intermittent food availability.
    MeSH term(s) Humans ; Rats ; Male ; Animals ; Rats, Wistar ; Anorexia/veterinary ; Polydipsia/veterinary ; Behavior, Animal
    Language English
    Publishing date 2023-01-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2048665-0
    ISSN 1543-4508 ; 1543-4494
    ISSN (online) 1543-4508
    ISSN 1543-4494
    DOI 10.3758/s13420-022-00560-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Diffusion in multiscale spacetimes.

    Calcagni, Gianluca

    Physical review. E, Statistical, nonlinear, and soft matter physics

    2013  Volume 87, Issue 1, Page(s) 12123

    Abstract: We study diffusion processes in anomalous spacetimes regarded as models of quantum geometry. Several types of diffusion equation and their solutions are presented and the associated stochastic processes are identified. These results are partly based on ... ...

    Abstract We study diffusion processes in anomalous spacetimes regarded as models of quantum geometry. Several types of diffusion equation and their solutions are presented and the associated stochastic processes are identified. These results are partly based on the literature in probability and percolation theory but their physical interpretation here is different since they apply to quantum spacetime itself. The case of multiscale (in particular, multifractal) spacetimes is then considered through a number of examples, and the most general spectral-dimension profile of multifractional spaces is constructed.
    MeSH term(s) Computer Simulation ; Diffusion ; Models, Chemical ; Models, Molecular ; Models, Statistical ; Quantum Theory ; Stochastic Processes
    Language English
    Publishing date 2013-01
    Publishing country United States
    Document type Journal Article
    ISSN 1550-2376
    ISSN (online) 1550-2376
    DOI 10.1103/PhysRevE.87.012123
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Behavior Stability and Individual Differences in Pavlovian Extended Conditioning.

    Calcagni, Gianluca / Caballero-Garrido, Ernesto / Pellón, Ricardo

    Frontiers in psychology

    2020  Volume 11, Page(s) 612

    Abstract: How stable and general is behavior once maximum learning is reached? To answer this question and understand post-acquisition behavior and its related individual differences, we propose a psychological principle that naturally extends associative models ... ...

    Abstract How stable and general is behavior once maximum learning is reached? To answer this question and understand post-acquisition behavior and its related individual differences, we propose a psychological principle that naturally extends associative models of Pavlovian conditioning to a
    Language English
    Publishing date 2020-04-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2563826-9
    ISSN 1664-1078
    ISSN 1664-1078
    DOI 10.3389/fpsyg.2020.00612
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Fractal universe and quantum gravity.

    Calcagni, Gianluca

    Physical review letters

    2010  Volume 104, Issue 25, Page(s) 251301

    Abstract: We propose a field theory which lives in fractal spacetime and is argued to be Lorentz invariant, power-counting renormalizable, ultraviolet finite, and causal. The system flows from an ultraviolet fixed point, where spacetime has Hausdorff dimension 2, ... ...

    Abstract We propose a field theory which lives in fractal spacetime and is argued to be Lorentz invariant, power-counting renormalizable, ultraviolet finite, and causal. The system flows from an ultraviolet fixed point, where spacetime has Hausdorff dimension 2, to an infrared limit coinciding with a standard four-dimensional field theory. Classically, the fractal world where fields live exchanges energy momentum with the bulk with integer topological dimension. However, the total energy momentum is conserved. We consider the dynamics and the propagator of a scalar field. Implications for quantum gravity, cosmology, and the cosmological constant are discussed.
    Language English
    Publishing date 2010-06-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.104.251301
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Book ; Conference proceedings: Quantum gravity and quantum cosmology

    Calcagni, Gianluca

    [edited version of the talks given in the sixth Aegean School on "Quantum Gravity and Quantum Cosmology", held in Chora on Naxos Island, Greece, from 12th to 17th on September 2011]

    (Lecture notes in physics ; 863)

    2013  

    Institution Aegean Summer School Quantum Gravity and Quantum Cosmology
    Event/congress Aegean School (6, 2011.09.12-17, Naxos) ; Aegean Summer School Quantum Gravity and Quantum Cosmology (6, 2011.09.12-17, Naxos)
    Author's details Gianluca Calcagni ... (eds.)
    Series title Lecture notes in physics ; 863
    Keywords Quantum cosmology ; Quantum gravity ; Quantengravitation ; Quantenkosmologie
    Language English
    Size XII, 399 S., graph. Darst., 235 mm x 155 mm
    Publisher Springer
    Publishing place Heidelberg u.a.
    Document type Book ; Conference proceedings
    Note Literaturangaben
    ISBN 3642330355 ; 9783642330353 ; 9783642330360 ; 3642330363
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

    More links

    Kategorien

  7. Book ; Conference proceedings: Quantum gravity and quantum cosmology

    Calcagni, Gianluca

    [edited version of the talks given in the sixth Aegean School on "Quantum Gravity and Quantum Cosmology", held in Chora on Naxos Island, Greece, from 12th to 17th on September 2011]

    (Lecture notes in physics ; 863)

    2013  

    Institution Aegean Summer School Quantum Gravity and Quantum Cosmology
    Event/congress Aegean School (6, 2011.09.12-17, Naxos) ; Aegean Summer School Quantum Gravity and Quantum Cosmology (6, 2011.09.12-17, Naxos)
    Author's details Gianluca Calcagni ... (eds.)
    Series title Lecture notes in physics ; 863
    Keywords Quantum cosmology ; Quantum gravity ; Quantengravitation ; Quantenkosmologie
    Language English
    Size XII, 399 S., graph. Darst., 235 mm x 155 mm
    Publisher Springer
    Publishing place Heidelberg u.a.
    Document type Book ; Conference proceedings
    Note Literaturangaben
    ISBN 3642330355 ; 9783642330353 ; 9783642330360 ; 3642330363
    Database Former special subject collection: coastal and deep sea fishing

    More links

    Kategorien

  8. Article: Black holes in multi-fractional and Lorentz-violating models.

    Calcagni, Gianluca / Rodríguez Fernández, David / Ronco, Michele

    The European physical journal. C, Particles and fields

    2017  Volume 77, Issue 5, Page(s) 335

    Abstract: We study static and radially symmetric black holes in the multi-fractional theories of gravity ... ...

    Abstract We study static and radially symmetric black holes in the multi-fractional theories of gravity with
    Language English
    Publishing date 2017-05-20
    Publishing country France
    Document type Journal Article
    ZDB-ID 1459069-4
    ISSN 1434-6052 ; 1434-6044
    ISSN (online) 1434-6052
    ISSN 1434-6044
    DOI 10.1140/epjc/s10052-017-4879-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Book ; Online: Beyond Rescorla-Wagner

    Calcagni, Gianluca / Harris, Justin A. / Pellón, Ricardo

    the ups and downs of learning

    2020  

    Abstract: We check the robustness of a recently proposed dynamical model of associative Pavlovian learning that extends the Rescorla-Wagner (RW) model in a natural way and predicts progressively damped oscillations in the response of the subjects. Using the data ... ...

    Abstract We check the robustness of a recently proposed dynamical model of associative Pavlovian learning that extends the Rescorla-Wagner (RW) model in a natural way and predicts progressively damped oscillations in the response of the subjects. Using the data of two experiments, we compare the dynamical oscillatory model (DOM) with a non-associative oscillatory model (NAOM) made of the superposition of the RW learning curve and oscillations. Not only do data clearly show an oscillatory pattern, but they also favour the DOM over the NAOM, thus pointing out that these oscillations are the manifestation of an associative process. The latter is interpreted as the fact that subjects make predictions on trial outcomes more extended in time than in the RW model, but with more uncertainty.

    Comment: 47 pages, 8 figures, 3 tables
    Keywords Quantitative Biology - Quantitative Methods ; Quantitative Biology - Neurons and Cognition
    Publishing date 2020-04-10
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  10. Article: Double-Outlet Left Ventricle: Case Series and Systematic Review of the Literature.

    Lioncino, Michele / Calcagni, Giulio / Badolato, Fausto / Antonelli, Giovanni / Leonardi, Benedetta / de Zorzi, Andrea / Secinaro, Aurelio / Brancaccio, Gianluca / Albanese, Sonia / Carotti, Adriano / Drago, Fabrizio / Rinelli, Gabriele

    Diagnostics (Basel, Switzerland)

    2023  Volume 13, Issue 20

    Abstract: Double-outlet left ventricle (DOLV) is an abnormal ventriculo-arterial connection characterized by the origin of both great arteries from the morphological left ventricle. The aim of our paper is to describe the morphological and imaging features of DOLV ...

    Abstract Double-outlet left ventricle (DOLV) is an abnormal ventriculo-arterial connection characterized by the origin of both great arteries from the morphological left ventricle. The aim of our paper is to describe the morphological and imaging features of DOLV and to assess the prevalence of the associated malformations and their surgical outcomes. METHODS From 2011 to 2022, we retrospectively reviewed the electronic case records of patients diagnosed with DOLV at the Bambino Gesu Children's Hospital. A systematic search was developed in MEDLINE, Web of Science, and EMBASE databases to identify reports assessing the morphology and outcomes of DOLV between 1975 and 2023. RESULTS: Over a median follow-up of 9.9 years (IQR 7.8-11.7 y), four cases of DOLV were identified at our institution. Two patients were diagnosed with (S,D,D) DOLV subaortic VSD and pulmonary stenosis (PS): one patient had (S,D,D) DOLV with doubly committed VSD and hypoplastic right ventricle, and another patient had (S,D,L) DOLV with subaortic VSD and PS (malposition type). Pulmonary stenosis was the most commonly associated lesion (75%). LITERATURE REVIEW: After systematic evaluation, a total of 12 reports fulfilled the eligibility criteria and were included in our analysis. PS or right ventricular outflow tract obstruction was the most commonly associated lesion (69%, 95% CI 62-76%). The most common locations of VSD were subaortic (pooled prevalence: 75%, 95% CI 68-81), subpulmonary (15%, 95% CI 10-21), and doubly committed (7%, 95% CI 4-12). The position of the great arteries showed that d-transposition of the aorta was present in 128 cases (59% 95% CI 42-74), and l-transposition was present in 77 cases (35%, 95% CI 29-43).
    Language English
    Publishing date 2023-10-11
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2662336-5
    ISSN 2075-4418
    ISSN 2075-4418
    DOI 10.3390/diagnostics13203175
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top