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Results overview: Found 66 records in 0.02 seconds.
Articles, 58 records found
Books and collections, 2 records found
Research literature, 6 records found
Articles 58 records found  1 - 10nextend  jump to record:
1.
13 p, 241.4 KB Riesz bases of exponentials for convex polytopes with symmetric faces / Debernardi Pinos, Alberto (Bar-Ilan University) ; Lev, Nir (Bar-Ilan University)
We prove that for any convex polytope in arbitrary dimensions which is centrally symmetric and whose faces of all dimensions are also centrally symmetric, there exists a Riesz basis of exponential functions in the space L2(Ω). [...]
2021 - 10.4171/JEMS/1158
Journal of the European Mathematical Society, Vol. 24, Issue 8 (May 2021) , p. 3017-3029  
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2.
14 p, 840.5 KB An Online HIV Self-Sampling Strategy for Gay, Bisexual and Other Men Who Have Sex with Men and Trans Women in Spain / Martínez-Riveros, Héctor (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Díaz, Yesika (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Montoro-Fernandez, Marcos (Ministry of Health of the Government of Catalonia) ; Moreno-Fornés, Sergio (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; González, Victoria (Instituto de Salud Carlos III) ; Muntada, Esteve (Ministry of Health of the Government of Catalonia) ; Romano-deGea, Pol (Ministry of Health of the Government of Catalonia) ; Muñoz, Rafael (Institut d'Investigació Biomèdica de Bellvitge) ; Hoyos, Juan (Independent consultant, Madrid) ; Casabona-Barbarà, Jordi (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Agustí, Cristina (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Universitat Autònoma de Barcelona. Departament de Pediatria, Obstetrícia i Ginecologia i de Medicina Preventiva i Salut Pública
We aimed to evaluate the feasibility of an online self-sampling pilot intervention for HIV testing addressed to gay, bisexual, and other men who have sex with men (GBMSM) and trans women (TW) users of dating apps in Spain. [...]
2023 - 10.1007/s10900-023-01311-8
Journal of Community Health, 2023  
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3.
9 p, 1.3 MB Implementation of web-based respondent driven sampling in epidemiological studies / Ferrer Rosende, Pedro (Universitat Autònoma de Barcelona) ; Feijoo Cid, Maria (Universitat Autònoma de Barcelona. Departament d'Infermeria) ; Fernández-Cano, María Isabel (Universitat Autònoma de Barcelona. Departament d'Infermeria) ; Salas Nicás, Sergio ; Stuardo Ávila, Valeria 1983- (Instituto de Salud Pública. Universidad Andrés Bello) ; Navarro Giné, Albert (Universitat Autònoma de Barcelona. Departament de Pediatria, Obstetrícia i Ginecologia i Medicina Preventiva i Salut Pública) ; Universitat Autònoma de Barcelona. SGR - Research group on Psychosocial risks, Organization of Work and Health (POWAH)
Background: Respondent-driven sampling (RDS) is a peer chain-recruitment method for populations without a sampling frame or that are hard-to-reach. Although RDS is usually done face-to-face, the online version (WebRDS) has drawn a lot of attention as it has many potential benefits, despite this, to date there is no clear framework for its implementation. [...]
2023 - 10.1186/s12874-023-02042-z
BMC Medical Research Methodology, Vol. 23 Núm. 1 (december 2023) , p. 217  
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4.
13 p, 3.5 MB Measuring BVOC emissions released by tomato plants grown in a soilless integrated rooftop greenhouse / Stringari, Gaia (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Villanueva, Joan (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Appolloni, Elisa (Università di Bologna. Dipartimento di Scienze Agrarie e Alimentari) ; Orsini, Francesco (Università di Bologna. Dipartimento di Scienze Agrarie e Alimentari) ; Villalba, Gara (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Gabarrell Durany, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Urban design is currently promoting the inclusion of plants in buildings. However, plants emit biogenic volatile organic compounds (BVOCs), which alone or in combination with other airborne molecules such as CO2, may result in a general increase in tropospheric pollution. [...]
2024 - 10.1016/j.heliyon.2023.e23854
Heliyon, Vol. 10, issue 1 (Jan. 2024) , art. e23854  
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5.
8 p, 1.3 MB Exposure of yellow-legged gulls to Toxoplasma gondii along the Western Mediterranean coasts : Tales from a sentinel / Gamble, Amandine (University Paul Valéry Montpellier 3) ; Ramos, Raül (Universitat de Barcelona) ; Parra-Torres, Yaiza (Universitat de Barcelona) ; Mercier, Aurélien (CHU Limoges) ; Galal, Lokman (Université de Limoges) ; Pearce-Duvet, Jessica (University Paul Valéry Montpellier 3) ; Villena, Isabelle (Centre National de Référence de la Toxoplasmose) ; Montalvo Porro, Tomas (Institut d'Investigació Biomèdica Sant Pau) ; González-Solís, Jacob (Universitat de Barcelona) ; Hammouda, Abdessalem (Université de Gabès) ; Oro, Daniel (Centre d'Estudis Avançats de Blanes. Laboratori d'Ecologia Teòrica i Computacional - CSIC) ; Selmi, Slahedddine (Université de Gabès) ; Boulinier, Thierry (University Paul Valéry Montpellier 3) ; Universitat Autònoma de Barcelona
Efficiently tracking and anticipating the dynamics of infectious agents in wild populations requires the gathering of large numbers of samples, if possible at several locations and points in time, which can be a challenge for some species. [...]
2019 - 10.1016/j.ijppaw.2019.01.002
International Journal for Parasitology: Parasites and Wildlife, Vol. 8 (april 2019) , p. 221-228  
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6.
10 p, 1.4 MB Trace Elements and Ferritin in Pig Saliva : Variations during Fattening, Time of Sampling, Effect of Dirtiness and Stability under Different Storage Conditions / Ortín-Bustillo, Alba (Universidad de Murcia. Laboratorio Interdisciplinario de Análisis Clínicos Interlab) ; Escribano Tortosa, Damián (Universidad de Murcia. Departamento de Producción Animal) ; Martínez-Subiela, Silvia (Universidad de Murcia. Laboratorio Interdisciplinario de Análisis Clínicos Interlab) ; Tvarijonaviciute, Asta (Universidad de Murcia. Laboratorio Interdisciplinario de Análisis Clínicos Interlab) ; Muñoz-Prieto, Alberto (Universidad de Murcia. Laboratorio Interdisciplinario de Análisis Clínicos Interlab) ; López-Arjona, Marina (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments) ; Cerón, José Joaquín (Universidad de Murcia. Laboratorio Interdisciplinario de Análisis Clínicos Interlab) ; Tecles, Fernando (Universidad de Murcia. Laboratorio Interdisciplinario de Análisis Clínicos Interlab)
The objective of this study was to evaluate the possible changes of zinc (Zn), copper (Cu), iron (Fe) and ferritin during the entire productive cycle in fattening pigs and at different diurnal sampling times. [...]
2023 - 10.3390/antiox12030649
Antioxidants, Vol. 12 (march 2023)  
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7.
9 p, 706.2 KB A psychosocial pathway to paranoia : The interplay between social connectedness and self-esteem / Monsonet, Manel (Universitat Autònoma de Barcelona. Departament de Psicologia Clínica i de la Salut) ; Amedy, Amad (Vanderbilt University. Department of Psychology) ; Kwapil, Thomas R. (University of Illinois at Urbana-Champaign. Department of Psychology) ; Barrantes-Vidal, Neus (Universitat Autònoma de Barcelona. Departament de Psicologia Clínica i de la Salut)
The quantity and quality of social contacts have been related to self-esteem, and both social relationships and self-esteem have been implicated in the pathways to paranoia. However, how social relationships interplay with self-esteem to trigger paranoia is not well understood. [...]
2023 - 10.1016/j.schres.2023.03.006
Schizophrenia Research, Vol. 254 (2023) , p. 199-207  
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8.
6 p, 647.1 KB Consistency of Convenience Sampling Order and its Association With Response to Handling and Weaning in Domestic Pigs (Sus scrofa) / Ko, Heng-Lun (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments) ; Manteca Vilanova, Xavier (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments) ; Llonch, Pol (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Convenience sampling in animal experiments may affect findings due to individual difference in temperament. The aim in this study was to assess the consistency of convenience sampling order (ORDER), and to study the association between potential factors (i. [...]
2023 - 10.1016/j.jveb.2023.01.004
Journal of Veterinary Behavior, Vol. 61 (2023) , p. 19-24  
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9.
17 p, 2.5 MB Cervical Fluids Are a Source of Protein Biomarkers for Early, Non-Invasive Endometrial Cancer Diagnosis / Martinez-Garcia, Elena (Luxembourg Institute of Health) ; Coll de la Rubia, Eva (Hospital Universitari Vall d'Hebron. Institut de Recerca) ; Lesur, Antoine (Luxembourg Institute of Health) ; Dittmar, Gunnar (University of Luxembourge) ; Gil-Moreno, Antonio 1965- (Hospital Universitari Vall d'Hebron) ; Cabrera Díaz, Silvia (Hospital Universitari Vall d'Hebron) ; Colás Ortega, Eva (Hospital Universitari Vall d'Hebron. Institut de Recerca) ; Universitat Autònoma de Barcelona
Abnormal uterine bleeding (AUB) is the main symptom of endometrial cancer (EC), but it is highly nonspecific. This represents a huge burden for women's health, since all women presenting with bleeding will undergo sequential invasive tests, avoidable in 90-95% of those women who do not have EC. [...]
2023 - 10.3390/cancers15030911
Cancers, Vol. 15 (january 2023)  
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10.
8 p, 1.2 MB The Potential of Sewage Sludge to Predict and Evaluate the Human Chemical Exposome / Gil-Solsona, Rubén (IDAEA Severo Ochoa (2020-2023)) ; Nika, Maria-Christina (Laboratory of Analytical Chemistry. Department of Chemistry. National and Kapodistrian University of Athens) ; Bustamante, Mariona (Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública) ; Villanueva, Cristina M. (Institut Hospital del Mar d'Investigacions Mèdiques) ; Foraster, Maria (Universitat Ramon Llull) ; Cosin-Tomas, Marta (Department of Human Genetics. Research Institute of the McGill University Health Center. McGill University) ; Alygizakis, Nikiforos (Laboratory of Analytical Chemistry. Department of Chemistry. National and Kapodistrian University of Athens) ; Gómez-Roig, María Dolores (Universitat de Barcelona) ; Llurba, E (Institut d'Investigació Biomèdica Sant Pau) ; Sunyer Deu, Jordi (Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública) ; Thomaidis, Nikolaos S. (Laboratory of Analytical Chemistry. Department of Chemistry. National and Kapodistrian University of Athens) ; Dadvand, Payam (Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública) ; Gago-Ferrero, Pablo (IDAEA Severo Ochoa (2020-2023))
Chemicals are part of our daily lives, and we are exposed to numerous chemicals through multiple pathways. Relevant scientific evidence contributing to the regulation of hazardous chemicals require a holistic approach to assess simultaneous exposure to multiple compounds. [...]
2021 - 10.1021/acs.estlett.1c00848
Environmental Science and Technology Letters, Vol. 8 Núm. 12 (14 2021) , p. 1077-1084  
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Articles : 58 records found   1 - 10nextend  jump to record:
Books and collections 2 records found  
1.
16 p, 766.9 KB Collecting, organizing and analyzing multimodal data sets : the contributions of CAQDAS / Antoniadou, Victoria
Research-publishing.net, 2017
Qualitative approaches to research on plurilingual education - Enfocaments qualitatius per a la recerca en educació plurilingüe - Enfoques cualitativos para la investigación en educación plurilingüe, 2017, p. 435-468
2 documents
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2.
35 p, 518.6 KB Methods of sampling in qualitative health research / Maestripieri, Lara (Universitat Autònoma de Barcelona) ; Radin, Arianna (University of Bergamo) ; Spina, Elena (Università Politecnica delle Marche)
Chapter objectives: To provide an introduction to the features of non-probabilistic sampling and how it differs from probabilistic sampling; To discuss quota sampling and purposive sampling, how they are used and the importance of transparency in describing sampling methods; To describe the uses of snowball and self-selective sampling and their strengths and weaknesses; To consider the role of key informants in accessing samples.
SAGE, 2019
Researching Health: Qualitative, Quantitative and Mixed Methods, 2019  
 UAB restricted access
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Research literature 6 records found  
1.
12 p, 1.1 MB Cotxe intel·ligent de la Freescale Cup / Herrera Corredera, Aitor ; Senar Rosell, Miquel Àngel, dir. (Universitat Autònoma de Barcelona. Departament d'Arquitectura de Computadors i Sistemes Operatius) ; Universitat Autònoma de Barcelona. Escola d'Enginyeria
La Freescale Cup és una competició de cotxes autònoms en la qual els estudiants de diferents universitats, tots amb el mateix cotxe que proporciona Freescale, programen un algorisme de comportament que fa que aquest cotxe sigui capaç de recórrer un circuit marcat per una línia negra sense cap tipus de comandament humà directe. [...]
The Freescale Cup is an autonomous car competition where students from many universities must programme a behaviour algorithm to steer a car provided by Freescale. This algorithm makes the car navigate through a track by following a black line and without any direct human control. [...]
La Freescale Cup es una competición de coches autónomos en la cual los estudiantes de diferentes universidades, todos con el mismo coche que proporciona Freescale, programan un algoritmo de comportamiento que hace que este coche sea capaz de recorrer un circuito marcado por una línea negra sin ningún tipo de orden humana directa. [...]
2017-06-27
Enginyeria Informàtica [958]  
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2.
226 p, 1.1 MB Aportes metodológicos en la estimación de tamaños de muestra en estudios poblacionales de prevalencia / Alvarado Orellana, Sergio ; Navarro Giné, Albert, dir. ; Universitat Autònoma de Barcelona. Departament de Pediatria, d'Obstetrícia i Ginecologia i de Medicina Preventiva
Esta tesis doctoral aborda la aplicación de seis enfoques estadísticos que se utilizan para estimar tamaños de muestra en poblaciones multinomiales los que corresponden a: Angers (1974), Tortora (1978), Thompson (1987), Cochran (1977), Bromaghin (1993) y Fitzpatrick & Scott (1987), dichos enfoques están ampliamente discutidos en la literatura del muestreo estadístico pero generan controversia al momento de aplicarlos en estudios de salud dado a que no siempre permiten conjugar costos, representatividad y tamaños de muestra adecuados para un esquema de muestreo aleatorio simple y muestreo complejo de poblaciones en donde la variable de diseño o estudio corresponde a una distribución de tipo multinomial. [...]
This dissertation addresses the application of six statistical approaches used to estimate sample sizes in multinomial populations which correspond to: Angers (1974), Tortora (1978), Thompson (1987), Cochran (1977), Bromaghin (1993) and Fitzpatrick & Scott (1987), such approaches are widely discussed in the literature of statistical sampling but generated controversy when applying in health studies because they do not always allow combining costs, representation and adequate sample sizes for sampling scheme simple random sampling and complex populations where the design variable or study corresponds to a multinomial distribution type. [...]
[Barcelona] : Universitat Autònoma de Barcelona, 2014  
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3.
39 p, 419.2 KB Prevalence of alcohol-impaired drivers based on random breath tests in a roadside survey / Alcañiz, Manuela (Universitat de Barcelona. Departament d'Econometria) ; Guillén, Montserrat (Universitat de Barcelona. Departament d'Econometria) ; Santolino, Miguel (Universitat de Barcelona. Departament d'Econometria) ; Sánchez-Moscona, Daniel (Universitat de Barcelona. Departament d'Econometria) ; Llatje, Oscar (Universitat de Barcelona. Departament d'Econometria) ; Lluís, Ramon (Universitat de Barcelona. Departament d'Econometria) ; Xarxa de Referència en Economia Aplicada (XREAP)
Sobriety checkpoints are not usually randomly located by traffic authorities. As such, information provided by non-random alcohol tests cannot be used to infer the characteristics of the general driving population. [...]
Xarxa de Referència en Economia Aplicada (XREAP) 2013 (XREAP ; 2013-05)  
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4.
40 p, 291.1 KB Modelling dependence in a ratemaking procedure with multivariate Poisson regression models / Bermúdez, Lluís (Universitat de Barcelona. Departament de Matemàtica Financera i Actuarial) ; Karlis, Dimitris (Athens University of Economics and Business) ; Xarxa de Referència en Economia Aplicada (XREAP)
When actuaries face with the problem of pricing an insurance contract that contains different types of coverage, such as a motor insurance or homeowner's insurance policy, they usually assume that types of claim are independent. [...]
Xarxa de Referència en Economia Aplicada (XREAP) 2010 (XREAP ; 2010-4)  
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5.
28 p, 711.2 KB (No)competition in the Spanish retailing gasoline market : a variance filter approach / Jiménez, Juan Luí­s (Universidad de Las Palmas de Gran Canaria) ; Perdiguero, Jordi (Universitat de Barcelona. Departament de Política Econòmica)
Various methodologies in economic literature have been used to analyse the international hydrocarbon retail sector. Nevertheless at a Spanish level these studies are much more recent and most conclude that generally there is no effective competition present in this market, regardless of the approach used. [...]
Xarxa de Referència en Economia Aplicada (XREAP) 2009 (XREAP ; 2009-5)  
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6.
22 p, 182.7 KB Calculation of the variance in surveys of the economic climate / Alcañiz, Manuela (Universitat de Barcelona. Departament d'Econometria) ; Costa, Àlex (Institut d'Estadística de Catalunya) ; Guillén, Montserrat (Universitat de Barcelona. Departament d'Econometria) ; Luna, Carme (Institut d'Estadística de Catalunya) ; Rovira, Cristina (Institut d'Estadística de Catalunya) ; Xarxa de Referència en Economia Aplicada (XREAP)
Public opinion surveys have become progressively incorporated into systems of official statistics. Surveys of the economic climate are usually qualitative because they collect opinions of businesspeople and/or experts about the long-term indicators described by a number of variables. [...]
Xarxa de Referència en Economia Aplicada (XREAP) 2006 (XREAP ; 2008-06)  
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