Search results for "MULT"
showing 10 items of 17528 documents
A Channel-Aware Adaptive Modem for Underwater Acoustic Communications
2021
Acoustic underwater channels are very challenging, because of limited bandwidth, long propagation delays, extended multipath, severe attenuation, rapid time variation and large Doppler shifts. A plethora of underwater communication techniques have been developed for dealing with such a complexity, mostly tailoring specific applications scenarios which can not be considered as one-size-fits-all solutions. Indeed, the design of environment-specific solutions is especially critical for modulations with high spectral efficiency, which are very sensitive to channel characteristics. In this paper, we design and implement a software-defined modem able to dynamically estimate the acoustic channel c…
Consumo di suolo. Un approccio multidisciplinare ad un tema trasversale
2014
Il testo affronta il tema "consumo di suolo" affrontando la sfida dei un confronto 'trasversale', affinchè si provi a individuare soluzioni comuni. Per agevolare il confronto interdisciplinare, il testo è suddiviso in due sezioni: teorie del consumo e territori del consumo. La sezione “territori del consumo” analizza casi-studio concreti con contributi di Teresa Cannarozzo, Giuseppe Giunta e Alessandra Giorgianni, Giuseppe Abbate, Filippo Schilleci, Annalisa Giampino, Giuseppe Guerrera, Tommaso La Mantia. La sezione "teorie del consumo" racchiude contributi a carattere teorico-metodologico. Vi si trovano testi di Giuseppina Carrà, Iuri Peri e Carlo Prato, Claudio Bellia, Giuseppe De Luca, N…
Thoughts in concert : A multi-method approach to investigate the effect of performers’ focus of attention
2013
Does it matter what a performer feels or thinks about while performing? To investigate the effect of performers’ focus of attention on their performances we asked eight violinists to play the same musical phrase in response to three different instructions. The first instruction was to focus on the technical aspects of playing. The second instruction was to give an expressive performance. Following a sadness-inducing mood induction task, the third instruction was to play while focusing on felt emotions. High quality audio and three-dimensional motion-capture recordings were made of all performances. Subsequently, thirty individuals rated how much they liked each performance, how skilled they…
Bi-2212 and Y123 highly curved single-crystal-like objects: whiskers, bows and ring-like structures
2012
High-temperature superconducting objects of Bi2Sr2CaCu2O8 and Y Ba2Cu3O7 highly curved in the ab-plane, such as curved/kinked whiskers, bows and ring-like structures, were obtained within a solid?liquid?solid (SLS) grass-like growth mechanism. As-grown objects are crystals with three-dimensional epitaxy similar to conventional single crystals: they can be viewed as crystal parts ?cut? from a conventional rectangular crystal. Between our curved objects and conventional crystals, whiskers or thin films there are some differences in the superconducting properties induced only by the shape factors and no new physics is observed. Some details of the growth mechanism are discussed, emphasizing cu…
Global urban environmental change drives adaptation in white clover
2022
Made available in DSpace on 2022-04-28T19:52:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-03-18 Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied am…
Kansalaisuuskäsitykset maahanmuuttajien kotoutumiskoulutuksessa
2015
Tutkimuksessa kartoitan millaisia kansalaisuuskäsityksiä maahanmuuttajien kotoutumiskoulutuksessa ilmenee sekä koulutuksen suunnitelmatason että käytännön opetuksen tasolla. Selvitän onko kotoutumiskoulutuksen tavoitteena multikulturalistinen idea kansalaisuudesta, jossa maahanmuuttajat säilyttävät oman kulttuurinsa, vai assimiloiminen eli sulauttaminen suomalaiseen yhteiskuntaan ja kulttuuriin. Lisäksi tutkin, painotetaanko kotoutumiskoulutuksessa taloudellista, sosiaalista, kulttuurista, poliittista vai henkistä integraatiota. Aineistoina käytin kirjallista dokumenttia, Aikuisten maahanmuuttajien kotoutumiskoulutuksen opetussuunnitelman perusteet 2012 sekä itse tekemiäni haastatteluita ko…
Fingerspelling English words in Finnish sign language context : a multimodal view on interaction
2012
Tämä pro gradu -tutkimus tarkastelee viittomakielisiä vuorovaikutustilanteita, joissa englanninkielinen sana sormitetaan sormiaakkosviittomin. Tutkimuksen tavoitteena on tarkastalle vuorovaikutuksen monikanavaisuutta ja -muotoisuutta sekä sormituksessa tapahtuvia rakenteellisia muutoksia. Tutkimus on tehty etnografiseen tutkimusalaan sijoittuvan MDA:n (Mediated Discourse Analysis) viitekehyksessä. MDA on monimenetelmällinen lähestymistapa, joka tarkastelee sosiaalista toimintaan kokonaisvaltaisesti ottaen huomioon myös ei-kielelliset resurssit. Analysointimenetelmät on valittu tutkimuksen aineistoon ja tavoitteisiin soveltuviksi multimodaalisen vuorovaikutuksen, sosiaalisemiotiikan ja viitt…
“Nice to get to know you” : Social presence in virtual exchange discourse
2020
Virtual exchange comprises online collaborative activities in facilitated, educational contexts across borders. This paper offers a multimodal approach to the study of social presence in students’ asynchronous online discourse in the context of virtual exchange. It draws on the Community of Inquiry model of online learning (Garrison 2017) and interprets social presence as the dynamic discursive process of social interaction and self-presentation. The data consists of screenshots collected in a closed Facebook group during the first assignment of a Czech-Finnish virtual exchange project in 2017. The study aims to explore how the method of multimodal discourse analysis can be used to describe…
Sosiaalisen median kommenttien analyysi multimodaalisesta näkökulmasta digitaalisen journalismin ja poliittisen viestinnän tutkimuksessa
2021
Societal discussions flow on social media platforms that are studied by researchers in multiple ways and through various kinds of data sets that are extracted from them. In the studies of these discussions, multimodality unravels the semiotic modes that are communication resources through which meanings are socially and culturally created and expressed. In addition, the viewpoint of affordances can be used for viewing the functions of social media platforms and their discussions. Furthermore, this review was conducted to better understand how social media comments are researched from the perspective of multimodality in the context of digital journalism and political communication. A systema…
Multilingualism in (Foreign) Language Teaching and Learning
2019
I am an applied linguist who considers language learning to be a socially constructed practice. In fact, I would rather talk about applied language studies than applied linguistics, as I understand this area of inquiry to include any language-related research that bears a strong connection to societally significant phenomena. In that broad palette of research, my own work would be placed at the interface of the areas of language learning and teaching, on the one hand, and discourse studies and sociolinguistics, on the other. I have always worked with students who wish to be language teachers. Over the years, I have seen hundreds of students entering working life that is in constant turmoil.…