41 research outputs found
Redescubriendo los Humedales de Berisso : Taller de educación ambiental
No full textLa planificación y educación ambiental debe contemplar participación e integración de miembros de la comunidad en diversos momentos de su proceso de ejecución. Muchas propuestas no incorporan a los niños y subestiman su rol como sujetos proactivos en la transmisión de la educación ambiental recibida, hacia el núcleo familiar y/o contexto social en el que se insertan. La costa de Berisso comprende paisajes urbanísticos, portuarios, playa y humedales donde su naturaleza está fuertemente presionada por la antropía. Los humedales, vitales para la supervivencia humana, y su diversidad biológica, constituyen entornos altamente productivos y proveedores de agua. Estos ambientes se encuentran en retroceso a nivel nacional y mundial. Su conservación y uso racional es ineludible ya que los recursos ecosistémicos que proporcionan a la sociedad se deterioran. Se propone en niños (7 a 9 años); Fomentar actitud crítica, participativa y responsable frente a la situación ambiental (humedales de Berisso). Comprender procesos naturales como el efecto regulador de humedales frente a las inundaciones; relaciones entre naturaleza y sociedad; necesidad de conservar la biodiversidad y capital acuífero.
Se espera, fortalecer el vínculo entre universidad y sociedad, incorporar conceptos de: humedal, recurso natural y conservación, desarrollar herramientas de difusión y enriquecer bibliotecas escolares.Línea temática: Educación para la InclusiónConvocatoria: Convocatoria Ordinaria 2016Facultad de Ciencias Naturales y MuseoFacultad de Ciencias Médica
Redescubriendo los Humedales de Berisso : Taller de Educación Ambiental
No full textEste plan es la continuación del Proyecto iniciado en 2016 subsidiado en su primer año y acreditado en 2017. La costa de Berisso comprende paisajes urbanísticos y humedales donde su naturaleza está fuertemente presionada por la antropía. Los humedales, vitales para la supervivencia humana, y su diversidad biológica, constituyen entornos altamente productivos y proveedores de agua. Estos ambientes se encuentran en franco retroceso y su conservación y uso racional es ineludible, ya que los recursos ecosistémicos que proporcionan a la sociedad se deterioran. La planificación y educación ambiental debe contemplar participación e integración de la comunidad durante su ejecución. Se propone llevar a cabo el proyecto mediante talleres de educación ambiental para estudiantes de primaria y secundaria, así como también charlas informativas sobre problemáticas ambientales locales destinadas al público en general. El objetivo general de este plan es fomentar la actitud crítica, participativa y responsable frente a la situación ambiental. Comprender procesos naturales como el efecto regulador de humedales frente a las inundaciones y relaciones entre naturaleza y sociedad. Se espera fortalecer el vínculo entre universidad y sociedad, reflexionando sobre la importancia y conservación del humedal, generando espacios y material de difusión.Línea temática: Ambiente, Producción del Hábitat y Derecho a la CiudadConvocatoria: Convocatroria Ordinaria 2018Facultad de Ciencias Naturales y MuseoFacultad de Ciencias Agrarias y ForestalesFacultad de Ciencias MédicasFacultad de Bellas Arte
Analýza modelů optimalizace portfolia s pravděpodobnostními omezeními
No full textNázov práce: Anal˝za optimaliza n˝ch modelov v teórii portfólia s pravdepo- dobnostn˝mi obmedzeniami Autor: Monika Ka atová Katedra: Katedra pravd podobnosti a matematické statistiky Vedúci bakalárskej práce: doc. RNDr. Ing. Miloö Kopa, Ph.D., Katedra pravd po- dobnosti a matematické statistiky Abstrakt: Táto práca je zameraná na anal˝zu optimaliza n˝ch úloh s pravde- podobnostn˝mi obmedzeniami, ktoré sa vyuûívajú v teórii portfólia. Najprv sa zavádza fundamentálny pojem tejto práce - pravdepodobnostné obmedzenie. Po- tom sa uvádzajú predpoklady, na základe ktor˝ch je mnoûina prípustn˝ch rieöení s pravdepodobnostn˝m obmedzením konvexná. Zameriavame sa hlavne na Ka- taokov a Telserov model s individuálnymi pravdepodobnostn˝mi obmedzeniami. alej odvodzujeme ekvivalentné formulácie oboch modelov za predpokladu da- ného pravdepodobnostného rozdelenia. V empirickej asti je rieöen˝ Kataokov a Telserov model na finan n˝ch dátach z Burzy cenn˝ch papierov Praha. K ú ové slová: optimalizácia portfólia, pravdepodobnostné obmedzenie, anal˝za citlivosti Title: Analysis of portfolio optimization models with probability constraints Author: Monika Ka atová Department: Department of Probability and Mathematical Statistics Supervisor: doc. RNDr. Ing. Miloö Kopa, Ph.D., Department of Probability and Mathematical Statistics...K ú ové slová: optimalizácia portfólia, pravdepodobnostné obmedzenie, anal˝za citlivosti Title: Analysis of portfolio optimization models with probability constraints Author: Monika Ka atová Department: Department of Probability and Mathematical Statistics Supervisor: doc. RNDr. Ing. Miloö Kopa, Ph.D., Department of Probability and Mathematical Statistics Abstract: This thesis focuses on analysis of optimization problems with proba- bility constraints which are used in the portfolio theory. Firstly, the notion of probability constraint, fundamental to this thesis, is established. Afterwards, we present assumptions describing situations, in which the feasible set with probabi- lity constraint is convex. We focus mainly on Telser's and Kataoka's models with individual probability constraint. Furthermore, we derive both of these models using the assumption of a given probabilistic distribution. In the empirical part Telser's and Kataoka's models are applied to financial data obtained from the Prague Stock Exchange. Keywords: portfolio optimization, chance constraints, sensitivity analysis iiiKatedra pravděpodobnosti a matematické statistikyDepartment of Probability and Mathematical StatisticsFaculty of Mathematics and PhysicsMatematicko-fyzikální fakult
Techniques of translating urbanonyms derived from Polish crime novels and their French translations
No full textUważa się powszechnie, że nazwy własne nie podlegają tłumaczeniu. Autorkę interesuje transferowanie urbanonimów w przetłumaczonych na język francuski dwóch polskich powieściach kryminalnych, których akcja toczy się we współczesnejWarszawie. Analiza została oparta na technikach tłumaczenia nazw własnych K. Hejwowskiego (2004, 2015).Wyodrębniono techniki dominujące w różnych kategoriach urbanonimów (transfer prosty, transfer z modyfikacją graficzną, tłumaczenie). W przypadku nazw ulic, alej i placów pochodzących od nazwiska tłumacze stosują neutralizację fleksyjną. Inną często stosowaną techniką jest dodawanie kwalifikatorów rue (‘ulica’) i quartier (‘osiedle’) do nazw ulic i osiedli. W języku polskim często się je pomija, co w przypadku nazw ulic jest niedopuszczalne w języku francuskim. Zaobserwowano również techniki pozwalające na usunięcie nazwy własnej lub zastąpienie jej nazwą pospolitą. Zastosowane techniki tłumaczenia urbanonimów ułatwiają francuskiemu odbiorcy śledzenie wątków powieści oraz odczytanie obcych nazw. Pozbawiają go jednak możliwości poznania nazewnictwa z innego obszaru kulturowego.There is a common belief that proper names are not to be translated. The author traced the transfer of urbanonyms in French translations of two Polish crime novels set in contemporary Warsaw. The analysis has been based on the techniques of translating proper names by K. Hejwowski (2004, 2015). The dominant techniques used in various categories of urbanonyms have been distinguished (simple transfer, transfer with spelling modification, translation). In the case of street names, avenues and squares derived from surnames, translators use inflectional neutralization. Another frequent technique is to add the qualifiers rue (‘street’) and quartier (‘district’) to the names of streets and neighbourhoods. In Polish, they are often omitted, which, in the case of street names, is unacceptable in French. Moreover, several techniques allowing removing a proper name or to replace it with a common noun have also been detected. All in all, the techniques applied for translating urbanonyms make it easier for the French recipient to follow the threads of the novel and to read foreign names. However, they deprive him/her of contact with some features of foreign names’ strangeness that characterize a different cultural [email protected] w Białymstoku. Wydział Filologiczny. Katedra Leksykologii i PragmalingwistykiBallard M., Le nom propre en traduction, Paris 2001.Bochnakowa A., Parcourir la ville, en francçis et en polonais, [in:] Traduire la ville, J. Brzozowski (réd.), Kraków 2006, p. 11–17.Cieślikowa A., Jak „ocalić w tłumaczeniu” nazwy własne?, [w:] Między Oryginałem a Przekładem II. Przekład, jego tworzenie się i wpływ, M. Filipowicz-Rudek, J. Konieczna-Twardzikowa (red.), Kraków 1996, s. 311–320.Cook J., Traduire Marseille : les repères spatiaux dans la traduction polonaise du roman Total Khéops de Jean-Claude Izzo, [in:] Challenges in Translation: Space, Culture
and Linguistic Identity, R. Vasilescu, E. Nicolescu, R. Ştefan, A. Rădulescu (réd.), New York 2012, p. 225–237.Grass T., La traduction comme appropriation : le cas des toponymesétrangers, «Meta » 2006, vol. 51(4), p. 660–670.Handke K., Nazewnictwo miejskie, [w:] Polskie nazwy własne. Encyklopedia, E. Rzetelska-Feleszko (red.), Kraków 2005, s. 283–326.Hejwowski K., Kognitywno-komunikacyjna teoria przekładu, Warszawa 2004.Hejwowski K., Iluzja przekładu, Katowice 2015.Lewicki R., Zagadnienia lingwistyki przekładu, Lublin 2017.Newmark P., A Textbook of Translation, New York 1988.Paprocka N., Les tendances dans la traduction des toponymes dans la littérature de jeunesse : l’exemple des traductions polonaises d’Alexandre Dumas, Les Trois Musquetaires, [in:] Challenges in Translation: Space, Culture and Linguistic Identity, R. Vasilescu, E. Nicolescu, R. S¸ tefan, A. Rădulescu (réd.), New York 2012, p. 212–224.Skibińska E., Nazwy własne we francuskim przekładzie Prawieku i innych czasów Olgi Tokarczuk, [w:] Przekładając nieprzekładalne, W. Kubiński, O. Kubińska, T.Z. Wolański (red.), Gdańsk 2000, s. 157–169.Słownik Języka Polskiego PWN, [online], https://sjp.pwn.pl/, [accessible: 17.11.2020].Vinay J.-P., Darbelnet J., Stylistique compar´ee du franc¸ais et de l’anglais, Paris 1958.Waleryszak L., Quelques réflexions sur la traduction des urbanonymes dans la littérature polonaise contemporaine, [in:] Traduire la ville, J. Brzozowski (réd.), Kraków
2006, p. 112–123.25516
Semantics in Support of Biodiversity Knowledge Discovery: An Introduction to the Biological Collections Ontology and Related Ontologies
No full textThe study of biodiversity spans many disciplines and includes data pertaining to species distributions and abundances, genetic
sequences, traitmeasurements, and ecological niches, complemented by information on collection and measurement protocols. A
review of the current landscape ofmetadata standards and ontologies in biodiversity science suggests that existing standards such
as the Darwin Core terminology are inadequate for describing biodiversity data in a semantically meaningful and computationally
useful way. Existing ontologies, such as the Gene Ontology and others in the Open Biological and Biomedical Ontologies (OBO)
Foundry library, provide a semantic structure but lack many of the necessary terms to describe biodiversity data in all its
dimensions. In this paper, we describe the motivation for and ongoing development of a new Biological Collections Ontology, the
Environment Ontology, and the Population and Community Ontology. These ontologies share the aim of improving data
aggregation and integration across the biodiversity domain and can be used to describe physical samples and sampling processes
(for example, collection, extraction, and preservation techniques), as well as biodiversity observations that involve no physical
sampling. Together they encompass studies of: 1) individual organisms, including voucher specimens from ecological studies and
museum specimens, 2) bulk or environmental samples (e.g., gut contents, soil, water) that include DNA, other molecules, and
potentially many organisms, especially microbes, and 3) survey-based ecological observations. We discuss how these ontologies
can be applied to biodiversity use cases that span genetic, organismal, and ecosystem levels of organization. We argue that if
adopted as a standard and rigorously applied and enriched by the biodiversity community, these ontologies would significantly
reduce barriers to data discovery, integration, and exchange among biodiversity resources and researchers
Presence of human papilloma virus in a series of breast carcinoma from Argentina.
No full textBackgroundThe etiology and the molecular mechanisms related to breast carcinogenesis remain poorly understood. Some recent reports have examined the role of Human Papillomavirus (HPV) in this disease. The purpose of this study was to determine the prevalence of HPV in breast cancer.MethodsSixty one fresh frozen breast cancers samples were analyzed. Samples were tested for HPV by PCR, and products were automatically sequenced. Findings were correlated with clinical and pathological characteristics.ResultsThe HPV DNA prevalence in the breast cancer samples was 26% (16/61). Clinical parameters were not statistically associated with HPV presence (p>0.05 χ(2) test). Sequence analysis in a subgroup of cases indicates the prevalence of low risk HPV11, followed by high risk HPV16. We found no HPV transcriptional activity.ConclusionThe present study demonstrated for the first time in Argentina the presence of HPV in a proportion of the malignant breast tissues. This finding suggests that HPV may have a biological significance in breast carcinogenesis
Strategies and performance of the CMS silicon tracker alignment during LHC Run 2
No full textThe strategies for and the performance of the CMS silicon tracking system alignment during the 2015-2018 data-taking period of the LHC are described. The alignment procedures during and after data taking are explained. Alignment scenarios are also derived for use in the simulation of the detector response. Systematic effects, related to intrinsic symmetries of the alignment task or to external constraints, are discussed and illustrated for different scenarios
Observation of in proton-proton collisions and limits on the anomalous electromagnetic moments of the lepton
No full textThe production of a pair of leptons via photon-photon fusion, , is observed for the first time in proton-proton collisions, with a significance of 5.3 standard deviations. This observation is based on a data set recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138 fb. Events with a pair of leptons produced via photon-photon fusion are selected by requiring them to be back-to-back in the azimuthal direction and to have a minimum number of charged hadrons associated with their production vertex. The leptons are reconstructed in their leptonic and hadronic decay modes. The measured fiducial cross section of is 12.4 fb. Constraints are set on the contributions to the anomalous magnetic moment () and electric dipole moments () of the lepton originating from potential effects of new physics on the vertex: 0.0009 and 2.910 e.cm (95% confidence level), consistent with the standard model.The production of a pair of τ leptons via photon–photon fusion, {{\unicode{x03B3}\unicode{x03B3}\to\unicode{x03C4}\unicode{x03C4}}}, is observed for the first time in proton–proton collisions, with a significance of 5.3 standard deviations. This observation is based on a data set recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138 fb. Events with a pair of τ leptons produced via photon–photon fusion are selected by requiring them to be back-to-back in the azimuthal direction and to have a minimum number of charged hadrons associated with their production vertex. The τ leptons are reconstructed in their leptonic and hadronic decay modes. The measured fiducial cross section of {{\unicode{x03B3}\unicode{x03B3}\to\unicode{x03C4}\unicode{x03C4}}} is . Constraints are set on the contributions to the anomalous magnetic moment ({a_{\unicode{x03C4}}}) and electric dipole moments ({d_{\unicode{x03C4}}}) of the τ lepton originating from potential effects of new physics on the \unicode{x03B3}\unicode{x03C4}\unicode{x03C4} vertex: {a_{\unicode{x03C4}}} = 0.0009_{-0.0031}^{+0.0032} and |{d_{\unicode{x03C4}}}| \lt 2.9\times 10^{-17}\,{e}\,\textrm{cm} (95% confidence level), consistent with the standard model.The production of a pair of leptons via photon-photon fusion, , is observed for the first time in proton-proton collisions, with a significance of 5.3 standard deviations. This observation is based on a data set recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138 fb. Events with a pair of leptons produced via photon-photon fusion are selected by requiring them to be back-to-back in the azimuthal direction and to have a minimum number of charged hadrons associated with their production vertex. The leptons are reconstructed in their leptonic and hadronic decay modes. The measured fiducial cross section of is = 12.4 fb. Constraints are set on the contributions to the anomalous magnetic moment () and electric dipole moments () of the lepton originating from potential effects of new physics on the vertex: = 0.0009 and 2.9 10cm (95% confidence level), consistent with the standard model
A deep neural network to search for new long-lived particles decaying to jets
No full textA tagging algorithm to identify jets that are significantly displaced from the proton-proton (pp) collision region in the CMS detector at the LHC is presented. Displaced jets can arise from the decays of long-lived particles (LLPs), which are predicted by several theoretical extensions of the standard model. The tagger is a multiclass classifier based on a deep neural network, which is parameterised according to the proper decay length of the LLP. A novel scheme is defined to reliably label jets from LLP decays for supervised learning. Samples of pp collision data, recorded by the CMS detector at a centre-of-mass energy of 13 TeV, and simulated events are used to train the neural network. Domain adaptation by backward propagation is performed to improve the simulation modelling of the jet class probability distributions observed in pp collision data. The potential performance of the tagger is demonstrated with a search for long-lived gluinos, a manifestation of split supersymmetric models. The tagger provides a rejection factor of 10 000 for jets from standard model processes, while maintaining an LLP jet tagging efficiency of 30-80% for gluinos with 1 mm 10 m. The expected coverage of the parameter space for split supersymmetry is presented.A tagging algorithm to identify jets that are significantly displaced from the proton-proton (pp) collision region in the CMS detector at the LHC is presented. Displaced jets can arise from the decays of long-lived particles (LLPs), which are predicted by several theoretical extensions of the standard model. The tagger is a multiclass classifier based on a deep neural network, which is parameterised according to the proper decay length of the LLP. A novel scheme is defined to reliably label jets from LLP decays for supervised learning. Samples of pp collision data, recorded by the CMS detector at a centre-of-mass energy of 13 TeV, and simulated events are used to train the neural network. Domain adaptation by backward propagation is performed to improve the simulation modelling of the jet class probability distributions observed in pp collision data. The potential performance of the tagger is demonstrated with a search for long-lived gluinos, a manifestation of split supersymmetric models. The tagger provides a rejection factor of 10 000 for jets from standard model processes, while maintaining an LLP jet tagging efficiency of 30-80% for gluinos with 1 mm 10 m. The expected coverage of the parameter space for split supersymmetry is presented
Extracting the speed of sound in the strongly interacting matter created in ultrarelativistic lead-lead collisions at the LHC
No full textInternational audienceUltrarelativistic nuclear collisions create a strongly interacting state of hot and dense quark-gluon matter that exhibits a remarkable collective flow behavior with minimal viscous dissipation. To gain deeper insights into its intrinsic nature and fundamental degrees of freedom, we extracted the speed of sound in this medium created using lead-lead (PbPb) collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The data were recorded by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 0.607 nb. The measurement is performed by studying the multiplicity dependence of the average transverse momentum of charged particles emitted in head-on PbPb collisions. Our findings reveal that the speed of sound in this matter is nearly half the speed of light, with a squared value of 0.241 0.002 (stat) 0.016 (syst) in natural units. The effective medium temperature, estimated using the mean transverse momentum, is 219 8 (syst) MeV. The measured squared speed of sound at this temperature aligns precisely with predictions from lattice quantum chromodynamic (QCD) calculations. This result provides a stringent constraint on the equation of state of the created medium and direct evidence for a deconfined QCD phase being attained in relativistic nuclear collisions
