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Este é um estudo etnomusicológico sobre as narrativas sônicas de uma Cohab, conjunto habitacional popular da Região Metropolitana de Porto Alegre/RS. Tais narrativas emergem das intersubjetividades de uma pesquisa etnográfica de rua e da escuta com o objetivo de compreender como seus habitantes interpretam a dimensão sônica e como ela dinamiza suas experiências urbanas. Dialogando com as tendências mais recentes dos Sound Studies, desde uma escala etnográfica do local ao “fora da norma”, discuto como a multiplicidade e a intensidade sonora vividas localmente estão imbricadas em narrativas globais em favor de uma diversidade cultural, retomando e gerando constrangimentos e conflitos nesse cenário popular urbano. Seguindo percursos dentro dessa multiplicidade, acompanho como a produção musical de rappers testemunha o cotidiano da cidade, descortinando conflagrações urbanas entre as escalas micro e macrossocial. Ao apontar um ethos sônico cohabeiro, busco transcender propostas teóricas anteriores com relação à esfera sonora e dialogar com aquelas mais contemporâneas da Etnomusicologia. / This is an ethnomusicological study on sonic narratives in a working class neighbourhood in the greater Porto Alegre area, Southern Brazil. These narratives arise from the intersubjectivities of a street ethnography aiming to understand how social actors listen to and interpret the sonic dimension and how it streamlines their urban experiences. In line with the latest trends of Sound Studies from an ethnographic scale of the local to the “awkward”, I discuss how the locals’ sonic multiplicity and intensity are embedded in global narratives in favor of a cultural diversity that resumes and generates constraints and conflicts in that urban scenario. Among this multiplicity, I followed rappers’ musical production that testifies the daily life of the city unveiling urban conflagrations. By pointing a “cohabeiro” sonic ethos, I intend to transcend previous theoretical propositions related to the sound level by itself and to dialogue with those more contemporaneous ethnomusicological perspectives.

Este é um estudo etnomusicológico sobre as narrativas sônicas de uma Cohab, conjunto habitacional popular da Região Metropolitana de Porto Alegre/RS. Tais narrativas emergem das intersubjetividades de uma pesquisa etnográfica de rua e da escuta com o objetivo de compreender como seus habitantes interpretam a dimensão sônica e como ela dinamiza suas experiências urbanas. Dialogando com as tendências mais recentes dos Sound Studies, desde uma escala etnográfica do local ao “fora da norma”, discuto como a multiplicidade e a intensidade sonora vividas localmente estão imbricadas em narrativas globais em favor de uma diversidade cultural, retomando e gerando constrangimentos e conflitos nesse cenário popular urbano. Seguindo percursos dentro dessa multiplicidade, acompanho como a produção musical de rappers testemunha o cotidiano da cidade, descortinando conflagrações urbanas entre as escalas micro e macrossocial. Ao apontar um ethos sônico cohabeiro, busco transcender propostas teóricas anteriores com relação à esfera sonora e dialogar com aquelas mais contemporâneas da Etnomusicologia. / This is an ethnomusicological study on sonic narratives in a working class neighbourhood in the greater Porto Alegre area, Southern Brazil. These narratives arise from the intersubjectivities of a street ethnography aiming to understand how social actors listen to and interpret the sonic dimension and how it streamlines their urban experiences. In line with the latest trends of Sound Studies from an ethnographic scale of the local to the “awkward”, I discuss how the locals’ sonic multiplicity and intensity are embedded in global narratives in favor of a cultural diversity that resumes and generates constraints and conflicts in that urban scenario. Among this multiplicity, I followed rappers’ musical production that testifies the daily life of the city unveiling urban conflagrations. By pointing a “cohabeiro” sonic ethos, I intend to transcend previous theoretical propositions related to the sound level by itself and to dialogue with those more contemporaneous ethnomusicological perspectives.

Este é um estudo etnomusicológico sobre as narrativas sônicas de uma Cohab, conjunto habitacional popular da Região Metropolitana de Porto Alegre/RS. Tais narrativas emergem das intersubjetividades de uma pesquisa etnográfica de rua e da escuta com o objetivo de compreender como seus habitantes interpretam a dimensão sônica e como ela dinamiza suas experiências urbanas. Dialogando com as tendências mais recentes dos Sound Studies, desde uma escala etnográfica do local ao “fora da norma”, discuto como a multiplicidade e a intensidade sonora vividas localmente estão imbricadas em narrativas globais em favor de uma diversidade cultural, retomando e gerando constrangimentos e conflitos nesse cenário popular urbano. Seguindo percursos dentro dessa multiplicidade, acompanho como a produção musical de rappers testemunha o cotidiano da cidade, descortinando conflagrações urbanas entre as escalas micro e macrossocial. Ao apontar um ethos sônico cohabeiro, busco transcender propostas teóricas anteriores com relação à esfera sonora e dialogar com aquelas mais contemporâneas da Etnomusicologia. / This is an ethnomusicological study on sonic narratives in a working class neighbourhood in the greater Porto Alegre area, Southern Brazil. These narratives arise from the intersubjectivities of a street ethnography aiming to understand how social actors listen to and interpret the sonic dimension and how it streamlines their urban experiences. In line with the latest trends of Sound Studies from an ethnographic scale of the local to the “awkward”, I discuss how the locals’ sonic multiplicity and intensity are embedded in global narratives in favor of a cultural diversity that resumes and generates constraints and conflicts in that urban scenario. Among this multiplicity, I followed rappers’ musical production that testifies the daily life of the city unveiling urban conflagrations. By pointing a “cohabeiro” sonic ethos, I intend to transcend previous theoretical propositions related to the sound level by itself and to dialogue with those more contemporaneous ethnomusicological perspectives.

Emissions of radionuclides to the atmosphere can lead to wet deposition on plants in theevent of rainfall. An increased level of radioactivity in the plants may occur due tointerception and retention of the radionuclides. If the content of the plants is above thethreshold limit value, entire yields may have to be destroyed. In order to preventcontamination or decrease the content countermeasures can be taken. The impact of thebiomass, leaf area index (LAI) and growth stage of the plant on the interception andretention is important to know in order to decide which countermeasures to use.Weather may also be an important factor. In this work the interception and retention of 134Cs and 85Sr by spring wheat, ley andspring oil-seed rape was studied. The impact of the biomass, LAI and growth stage ofthe plant and precipitation after deposition was also studied. The work was conducted asa field study with plots of the size 1 x 1 m. The plants were wet deposited with 134Cs and 85Sr by using a rain simulator. A total activity of 40 kBq/m2 for both radionuclideswas deposited on each plot. Depositions were performed during four different growthstages and the plants were sampled approximately four hours, one and five days afterdeposition. Activities of the dried plant samples were measured with a High PurityGermanium (HPGe) detector. Finally the interception fraction and the retention factorwere calculated. The study showed that the interception fraction was highest for the third growth stagefor both wheat and oil-seed rape; dough ripeness for wheat and ripening for oil-seedrape. Ley, which was harvested after two depositions, had the highest interceptionfraction at the second growth stage, flowering. Oil-seed rape and ley seemed to have aslightly higher interception fraction for 85Sr at all growth stages. There was a positiverelationship for the biomass and interception fraction, for the LAI and interceptionfraction the relationship wasn’t significant. The retention showed a weak trend ofdecreasing with time, with the decrease being largest during the first day after theinterception. However, the standard deviation was large and consequently the values uncertain. / Utsläpp av radionuklider till atmosfären kan genom regn leda till att de våtdeponeras påväxter. Radionukliderna kan då fångas upp av växterna och hållas kvar vilket kanresultera i förhöjda halter av radioaktivitet hos växterna. Om detta leder till attgränsvärden överskrids kan kassering av växter som används vid livsmedelsproduktionvara nödvändig. Motåtgärder kan vidtas för att undvika kontaminering eller minskahalterna. För att veta vilka motåtgärder som ska användas är det viktigt att veta hurväxtens biomassa, bladyteindex (LAI), utvecklingsstadium samt väderförhållandenpåverkar uppfångningen och kvarhållningen. I detta arbete undersöktes uppfångningen och kvarhållningen av 134Cs och 85Sr hosvårvete, vall och vårraps. Inverkan av växtens biomassa, LAI och utvecklingsstadiumsamt nederbörd efter deponering undersöktes också. Arbetet genomfördes som ettfältförsök med försöksrutor med storleken 1 x 1 m. Växterna våtdeponerades med 134Csoch 85Sr med hjälp av en regnsimulator. En total aktivitet på 40 kBq/m2 för bådaradionukliderna deponerades per försöksruta. Deponeringar skedde under fyra olikaväxtutvecklingsstadier och växtprover togs ungefär fyra timmar efter deponering samtett och fem dygn senare. Aktiviteten hos de torkade växtproverna mättes med en HighPurity Germanium (HPGe) detektor. Därefter beräknades uppfångningsfraktioner ochkvarhållningsfaktorer. Försöket visade att uppfångningsfraktionen var störst vid det tredjeväxtutvecklingsstadiet för både vete och raps; degmognad för vete och fröutveckling förraps. Vallen, som slogs av efter två deponeringar, uppvisade störst uppfångningsfraktionvid andra växtutvecklingsstadiet, blomning. Hos raps och vall verkadeuppfångningsfraktionen för 85Sr vara något högre vid samtliga växtutvecklingsstadier.För biomassan och uppfångningsfraktionen fanns ett positivt samband, för LAI ochuppfångningsfraktionen var sambandet inte signifikant. Kvarhållningen visade en svagtrend att minska med tiden, minskningen var störst under det första dygnet efteruppfångningen. Dock var standardavvikelsen stor och värden därmed osäkra.

Ph.d.-afhandling. Den Kongelige Veterinær- og Landbohøjskole, 2002. / Haves også i trykt udg.

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