LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 262

Search options

  1. Article: Phenotypic and genotypic survey of antibiotic resistance in

    Casaux, María Laura / D'Alessandro, Bruno / Vignoli, Rafael / Fraga, Martín

    Frontiers in veterinary science

    2023  Volume 10, Page(s) 1055432

    Abstract: Salmonella ... ...

    Abstract Salmonella enterica
    Language English
    Publishing date 2023-03-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2834243-4
    ISSN 2297-1769
    ISSN 2297-1769
    DOI 10.3389/fvets.2023.1055432
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Book ; Online: DreamDecompiler

    Palmarini, Alessandro B. / Lucas, Christopher G. / Siddharth, N.

    Bayesian Program Learning by Decompiling Amortised Knowledge

    2023  

    Abstract: Solving program induction problems requires searching through an enormous space of possibilities. DreamCoder is an inductive program synthesis system that, whilst solving problems, learns to simplify search in an iterative wake-sleep procedure. The cost ... ...

    Abstract Solving program induction problems requires searching through an enormous space of possibilities. DreamCoder is an inductive program synthesis system that, whilst solving problems, learns to simplify search in an iterative wake-sleep procedure. The cost of search is amortised by training a neural search policy, reducing search breadth and effectively "compiling" useful information to compose program solutions across tasks. Additionally, a library of program components is learnt to express discovered solutions in fewer components, reducing search depth. In DreamCoder, the neural search policy has only an indirect effect on the library learnt through the program solutions it helps discover. We present an approach for library learning that directly leverages the neural search policy, effectively "decompiling" its amortised knowledge to extract relevant program components. This provides stronger amortised inference: the amortised knowledge learnt to reduce search breadth is now also used to reduce search depth. We integrate our approach with DreamCoder and demonstrate faster domain proficiency with improved generalisation on a range of domains, particularly when fewer example solutions are available.
    Keywords Computer Science - Artificial Intelligence ; Computer Science - Machine Learning ; Computer Science - Software Engineering
    Subject code 006
    Publishing date 2023-06-13
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  3. Book ; Online: Comparing Humans, GPT-4, and GPT-4V On Abstraction and Reasoning Tasks

    Mitchell, Melanie / Palmarini, Alessandro B. / Moskvichev, Arseny

    2023  

    Abstract: We explore the abstract reasoning abilities of text-only and multimodal versions of GPT-4, using the ConceptARC benchmark [10], which is designed to evaluate robust understanding and reasoning with core-knowledge concepts. We extend the work of ... ...

    Abstract We explore the abstract reasoning abilities of text-only and multimodal versions of GPT-4, using the ConceptARC benchmark [10], which is designed to evaluate robust understanding and reasoning with core-knowledge concepts. We extend the work of Moskvichev et al. [10] by evaluating GPT-4 on more detailed, one-shot prompting (rather than simple, zero-shot prompts) with text versions of ConceptARC tasks, and by evaluating GPT-4V, the multimodal version of GPT-4, on zero- and one-shot prompts using image versions of the simplest tasks. Our experimental results support the conclusion that neither version of GPT-4 has developed robust abstraction abilities at humanlike levels.

    Comment: Corrected Figure 3 (extra spaces were replaced by commas, which were lost in original formatting)
    Keywords Computer Science - Artificial Intelligence ; Computer Science - Machine Learning
    Publishing date 2023-11-13
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  4. Article ; Online: A New Model to Simulate Human Facial Appearance, Accurately, and Realistically, across Age and Ethnicity.

    Matts, Paul J / Canfield, Doug / D'Alessandro, Brian

    Plastic and reconstructive surgery

    2021  Volume 148, Issue 6S, Page(s) 14S–20S

    Abstract: Background: The human population is aging globally, and there is significant, growing interest in modeling and simulating facial appearance.: Methods: The authors describe a new means to model and simulate aging in facial images, using an approach ... ...

    Abstract Background: The human population is aging globally, and there is significant, growing interest in modeling and simulating facial appearance.
    Methods: The authors describe a new means to model and simulate aging in facial images, using an approach based entirely on 3D whole-face data collected from 1250 female subjects, across 5 ethnicities, ages 10-80.
    Results: Three models were built, each describing changes with age within each ethnic group, namely shape, color, and topography. These three models were used to build a simulation able to age or de-age a 2D image of a female subject's face, with a degree of accuracy and realism not achievable with previous approaches. Simulated images were validated by a cloud-based age estimator.
    Conclusions: The authors have developed a new facial age simulation model, where the use of three submodels (shape, color and topography), built from acquired 3D data, provides both scientifically robust and realistic output. As the data were acquired across five of the world's major ethnicities, this new model allows valuable insight into changes in the facial appearance of our aging global population.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Aging ; Child ; Computer Simulation ; Ethnicity ; Face/diagnostic imaging ; Female ; Humans ; Imaging, Three-Dimensional ; Middle Aged ; Physical Appearance, Body ; Young Adult
    Language English
    Publishing date 2021-11-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208012-6
    ISSN 1529-4242 ; 0032-1052 ; 0096-8501
    ISSN (online) 1529-4242
    ISSN 0032-1052 ; 0096-8501
    DOI 10.1097/PRS.0000000000008781
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: The alien species Phenolia (Lasiodites) picta (Macleay, 1825) in Sardinia (Coleoptera

    Roberto Rattu / Giampaolo Ruzzante / Paolo Audisio / Alessandro B Biscaccianti

    Fragmenta entomologica, Vol 53, Iss

    Nitidulidae)

    2021  Volume 1

    Abstract: The Oriental and Eastern Palaearctic species Phenolia picta, recently introduced into some countries of the Mediterranean Basin, including S France and S Italy (Sicily), is here reported for the first time from Sardinia. ...

    Abstract The Oriental and Eastern Palaearctic species Phenolia picta, recently introduced into some countries of the Mediterranean Basin, including S France and S Italy (Sicily), is here reported for the first time from Sardinia.
    Keywords Phenolia picta ; Sardinia ; alien species ; chorology ; Zoology ; QL1-991
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher University La Sapienza of Rome
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  6. Article ; Online: West Palaearctic taxa formerly connected to the ‘old’ genus Atritomus Reitter, 1877 (Coleoptera, Mycetophagidae)

    Alessandro B. Biscaccianti / Jens Esser / Silvio Cuoco / Enrica Giuliano Grimaldi / Paolo A. Audisio

    European Journal of Taxonomy, Vol 828, Iss

    taxonomy, distribution, and description of a new genus

    2022  Volume 1

    Abstract: The present study aims to resolve the taxonomic confusion involving several taxa within Mycetophagidae Leach, 1815, originating from the introduction of the genus Atritomus Reitter, 1877, and then by its subsequent controversial interpretation. A ... ...

    Abstract The present study aims to resolve the taxonomic confusion involving several taxa within Mycetophagidae Leach, 1815, originating from the introduction of the genus Atritomus Reitter, 1877, and then by its subsequent controversial interpretation. A detailed overview of the taxonomic and nomenclatural history of the taxa previously linked to Atritomus is provided. The authors propose the introduction of Stereophilus Biscaccianti, Audisio & Esser gen. nov. for Atritomus filicornis Reitter, 1887, and the restoration of Entoxylon Ancey, 1869 at the genus rank, together with some rectifications regarding the authorship and the date of publication of both Entoxylon and its type species, E. abeillei Ancey, 1869. Moreover, the Ethiopian species Atritomus vicinus Grouvelle, 1908 is herein transferred to the genus Typhaeola Ganglbauer, 1899 based on the examination of the holotype. The following new combinations are proposed: Entoxylon baudii (Seidlitz, 1889) comb. nov. (from Esarcus Reiche, 1864), Entoxylon besucheti (Dajoz, 1964) comb. nov. (from Esarcus subg. Entoxylon), Entoxylon franzi (Dajoz, 1964) comb. nov. (from Esarcus subg. Entoxylon), Entoxylon inexpectatus (Dajoz, 1964) comb. nov. (from Esarcus subg. Entoxylon), Entoxylon martini (Reitter, 1887) comb. nov. (from Esarcus), Stereophilus filicornis (Reitter, 1887) gen. et comb. nov. (from Atritomus), Typhaeola vicina (Grouvelle, 1908) comb. nov. (from Atritomus).
    Keywords Mycetophagidae ; saproxylic beetles ; taxonomy ; new genus ; new combinations ; Zoology ; QL1-991 ; Botany ; QK1-989
    Subject code 590
    Language English
    Publishing date 2022-07-01T00:00:00Z
    Publisher Consortium of European Natural History Museums
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  7. Article ; Online: New Italian records of Lichenophanes varius (Illiger, 1801) (Coleoptera, Bostrichidae)

    Gianluca Nardi / Alessandro B. Biscaccianti

    Nature Conservation, Vol 19, Iss , Pp 219-

    2017  Volume 229

    Abstract: Lichenophanes varius (Illiger, 1801) is a Turanic-European-Mediterranean species. In most of European countries, this species is protected at different levels and it is classified as “NT” (Near Threatened) in the IUCN European Red List of Saproxylic ... ...

    Abstract Lichenophanes varius (Illiger, 1801) is a Turanic-European-Mediterranean species. In most of European countries, this species is protected at different levels and it is classified as “NT” (Near Threatened) in the IUCN European Red List of Saproxylic Beetles. In Italy, it is classified as “EN” (Endangered). Its larvae are saproxylophagous and develop in branches and rotting trunks of many broadleaved tree genera. Nevertheless, this beetle seems to attack only wood which is already invaded by the mycelia of Biscogniauxia spp. (Pyrenomycetes, Xylariaceae). The Italian distribution and ecology of L. varius are updated on the basis of recent records; the species is recorded for the first time from Calabria, where it was reared from Quercus frainetto Ten. which represent a new host-plant record for this beetle. Finally, the authors discuss the possibility that global warming can promote a resurgence of attacks from the above mentioned phytopathogenic fungi in Italian forests and, therefore, this climatic change can also favour the populations of this red-listed beetle.
    Keywords Ecology ; QH540-549.5 ; General. Including nature conservation ; geographical distribution ; QH1-199.5
    Subject code 590
    Language English
    Publishing date 2017-07-01T00:00:00Z
    Publisher Pensoft Publishers
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  8. Article ; Online: A revision of distribution, ecology and conservation issues of the threatened comb-claw beetle Gerandryus aetnensis (Coleoptera

    Irene Piccini / Luca Cristiano / Viviana Di Pietro / Simona Bonelli / Alessandro B. Biscaccianti

    Fragmenta entomologica, Vol 53, Iss

    Tenebrionidae, Alleculinae)

    2021  Volume 1

    Abstract: Gerandryus aetnensis (Rottenberg, 1871) is a rare and localized beetle, previously known only for Maritime Alps and Sicily. In this paper we provide a revision of geonemy, ecology and status of conservation, including a proposal for a new assessment of ... ...

    Abstract Gerandryus aetnensis (Rottenberg, 1871) is a rare and localized beetle, previously known only for Maritime Alps and Sicily. In this paper we provide a revision of geonemy, ecology and status of conservation, including a proposal for a new assessment of its extinction risk in the framework of the European saproxylic beetles, based upon several new records from western Alps, northern, central, southern Apen- nine, and Sicily. Thus, the species is a W-Alpino-Apenninic subendemic saproxylic species, associated to tree hollows in both coniferous and deciduous forests. We also propose to assess G. aetnensis as Vulnerable at global and Italian level.
    Keywords saproxylic beetles ; Alleculinae ; IUCN threatened species ; geonemy ; endemic/subendemic species ; Italy ; Zoology ; QL1-991
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher University La Sapienza of Rome
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  9. Article: Emotion-aware music tower blocks (EmoMTB ): an intelligent audiovisual interface for music discovery and recommendation.

    Melchiorre, Alessandro B / Penz, David / Ganhör, Christian / Lesota, Oleg / Fragoso, Vasco / Fritzl, Florian / Parada-Cabaleiro, Emilia / Schubert, Franz / Schedl, Markus

    International journal of multimedia information retrieval

    2023  Volume 12, Issue 1, Page(s) 13

    Abstract: Music listening has experienced a sharp increase during the last decade thanks to music streaming and recommendation services. While they offer text-based search functionality and provide recommendation lists of remarkable utility, their typical mode of ... ...

    Abstract Music listening has experienced a sharp increase during the last decade thanks to music streaming and recommendation services. While they offer text-based search functionality and provide recommendation lists of remarkable utility, their typical mode of interaction is unidimensional, i.e., they provide lists of consecutive tracks, which are commonly inspected in sequential order by the user. The user experience with such systems is heavily affected by cognition biases (e.g., position bias, human tendency to pay more attention to first positions of ordered lists) as well as algorithmic biases (e.g., popularity bias, the tendency of recommender systems to overrepresent popular items). This may cause dissatisfaction among the users by disabling them to find novel music to enjoy. In light of such systems and biases, we propose an intelligent audiovisual music exploration system named EmoMTB . It allows the user to browse the entirety of a given collection in a free nonlinear fashion. The navigation is assisted by a set of personalized emotion-aware recommendations, which serve as starting points for the exploration experience. EmoMTB  adopts the metaphor of a city, in which each track (visualized as a colored cube) represents one floor of a building. Highly similar tracks are located in the same building; moderately similar ones form neighborhoods that mostly correspond to genres. Tracks situated between distinct neighborhoods create a gradual transition between genres. Users can navigate this music city using their smartphones as control devices. They can explore districts of well-known music or decide to leave their comfort zone. In addition, EmoMTB   integrates an emotion-aware music recommendation system that re-ranks the list of suggested starting points for exploration according to the user's self-identified emotion or the collective emotion expressed in EmoMTB 's Twitter channel. Evaluation of EmoMTB   has been carried out in a threefold way: by quantifying the homogeneity of the clustering underlying the construction of the city, by measuring the accuracy of the emotion predictor, and by carrying out a web-based survey composed of open questions to obtain qualitative feedback from users.
    Language English
    Publishing date 2023-06-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 2649485-1
    ISSN 2192-662X ; 2192-6611
    ISSN (online) 2192-662X
    ISSN 2192-6611
    DOI 10.1007/s13735-023-00275-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Pancreatite aguda biliar

    Alessandro B. Osvaldt / Priscila Viero / Mário Sérgio T. B. da Costa / Vivian P. Bersch / Luiz Roberto Wendt / Luiz Rohde

    Clinical and Biomedical Research, Vol 21, Iss

    2022  Volume 1

    Abstract: OBJETIVO: A pancreatite aguda biliar (PAB) é uma doença com morbidade e mortalidade elevadas mas pouco estudada no Brasil. O objetivo deste trabalho é detalhar o diagnóstico diferencial etiológico, a gravidade e o tratamento da PAB no Hospital de ... ...

    Abstract OBJETIVO: A pancreatite aguda biliar (PAB) é uma doença com morbidade e mortalidade elevadas mas pouco estudada no Brasil. O objetivo deste trabalho é detalhar o diagnóstico diferencial etiológico, a gravidade e o tratamento da PAB no Hospital de Clínicas de Porto Alegre em 1999. MATERIAIS E MÉTODOS: Foram avaliados em estudo de coorte, prospectivo, todos os pacientes com amilase superior a 440 mg/dl e incluídos 65 (78,4%) que apresentavam PAB. Esta amostra foi submetida à determinação de gravidade pelos critérios de Ranson biliar, Glasgow modificado, APACHE-II e APACHE-O e acompanhada durante a evolução da doença. RESULTADOS: Doze pacientes (18,5%) apresentaram evolução clínica com 19 complicações. As sistêmicas foram: falência renal (n = 4), insuficiência respiratória (n = 3), choque (n = 3) e sepse por colangite (n = 1). As complicações locais foram: coleções líquidas peripancreáticas (n = 3), necroses pancreáticas (n = 3), pseudocisto pancreático (n = 1), fístula pancreática (n = 1). Houve apenas uma morte relacionada a infarto agudo do miocárdio e hipocalcemia refratária. Os critérios prognósticos, conforme o número de parâmetros positivos, apresentaram um risco relativo que variou de 4,7 a 11,2, sensibilidade de 33,3% a 83,3%, especificidade de 79,2% a 98,1%, valor preditivo positivo de 45,0% a 83,3%, valor preditivo negativo de 86,4% a 95,5% e acurácia de 78,5% a 89,6%. Isoladamente, os parâmetros que apresentaram correlação com a gravidade foram leucograma >18000/mm3 , LDH >400 UI/L, queda ³10% hematócrito, cálcio sérico <8 mg/dL, aumento do nitrogênio uréico >2 mg/dL, AST >200 mg/dL, LDH >600 UI/L, leucograma >15000 mm3 , uréia >45 mg/dL, pH arterial £7,33 ou ³7,49, creatinina £0,6 ou ³1,4, Ht £30 ou ³45,9, leucócitos £ 3 ou ³14,9 (mil). CONCLUSÕES: Os critérios de Ranson, Glasgow, APACHE-II e APACHE-O apresentam boa sensibilidade e especificidade. O manejo da PAB deve ser revisto a partir de protocolos institucionais multidisciplinares.
    Keywords Pancreatite aguda ; biliar ; gravidade ; prognóstico ; Medicine ; R
    Language English
    Publishing date 2022-07-01T00:00:00Z
    Publisher Hospital de Clinicas de Porto Alegre
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top