Submitted by isabela.moljf@hotmail.com (isabela.moljf@hotmail.com) on 2017-05-04T14:32:46Z No. of bitstreams: 1 marcospereiralopes.pdf: 2209315 bytes, checksum: 7fb3d297f8d26fb98f07a65d24dfd96f (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-05-17T13:31:19Z (GMT) No. of bitstreams: 1 marcospereiralopes.pdf: 2209315 bytes, checksum: 7fb3d297f8d26fb98f07a65d24dfd96f (MD5) / Made available in DSpace on 2017-05-17T13:31:19Z (GMT). No. of bitstreams: 1 marcospereiralopes.pdf: 2209315 bytes, checksum: 7fb3d297f8d26fb98f07a65d24dfd96f (MD5) Previous issue date: 2014-02-28 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Na região tropical são escassos os estudos que exploram o uso do processo de decomposição foliar como ferramenta funcional para avaliar os efeitos das perturbações antrópicas sobre os ecossistemas aquáticos. Nosso objetivo foi avaliar os efeitos dos impactos antrópicos sobre a taxa de decomposição de Picramnia sellowii em riachos no Sudeste do Brasil. O experimento foi realizado durante 60 dias em três riachos referências e três impactados por poluição orgânica e sem cobertura vegetal. Em cada riacho foram incubados três sacos contendo 3 ± 0,05 g de folhas secas de P. sellowii. Os riachos referência apresentaram maiores concentrações de oxigênio dissolvido e menores valores de nutrientes, turbidez, condutividade elétrica, TIA (área total impermeável) e temperatura. O coeficiente de decomposição (k) diferiu entre os riachos referência (k = 0,014 ± 0,003 d-1) e os impactados (k = 0,005 ± 0,001 d-1). Nas folhas incubadas nos riachos referência foi observada maior biomassa de fungos e abundância de invertebrados, assim como a presença de fragmentadores, estando o k relacionado com a biomassa destes organismos. A decomposição se mostrou sensível para avaliar impactos antrópicos nos ecossistemas aquáticos uma vez que foram observadas nítidas diferenças entre a perda de massa foliar nos riachos referências e impactados. Estes resultados reforçam o efeito negativo da urbanização sobre a decomposição e biomassa de fungos e fragmnetadores. No segundo experimento foram realizadas retiradas após 7, 15, 30, 60, 90 e 120 dias, em três remansos e três corredeiras apenas nos riachos referências. Os principais resultados foram: no final do experimento restaram 16,63 % (remansos) e 10,30 % (corredeiras) de massa seca, que diferiu apenas entre os dias do experimento e não entre os mesohabitats e, foi influenciada pela biomassa de fungos; houve aumento na biomassa destes microorganismos no dia 90, diferindo apenas entre os dias do experimento e sendo influenciada pela temperatura e O2; a abundância de invertebrados foi maior em corredeiras e no dia 30, apresentando diferença entre mesohabitats e entre os dias, e sendo influenciada pela temperatura, O2 e velocidade; maior riqueza foi registrada em remansos e no dia 60; a família Chironomidae foi a mais abundante durante todo o experimento nos dois mesohabitats; a abundância e biomassa de fragmentadores foram baixas; o escalonamento multidimensional não métrico mostrou a separação dos mesohabitats e períodos inicial e final da decomposição. Através do segundo experimento foi possível observar que a perda de massa nos ecossistemas lóticos de baixa ordem é mais influenciada pela biomassa de fungos que pela biomassa de fragmentadores e pela velocidade da água. Adicionalmente, observamos que diferenças na abundância, riqueza e composição de invertebados são influenciadas por diferenças entre mesohabitats e pela sucessão ao longo da decomposição. Esses resultados contribuem para reforçar a importância do material vegetal de origem terrestre como fonte de energia para os invertebrados em riachos, e a necessidade de preservação da vegetação ripária. / There are few studies in tropical regions exploring the use of leaf breakdown process as a functional tool to assess anthropic disturbance on aquatic ecosystems. We assessed the effects of water pollution due to human activities on the leaf breakdown rate of Picramnia sellowii in streams of the southeastern Brazil. The experiment was carried out for 60 days in three reference streams and three streams impaired by organic pollution and absente of riparian vegetation. Three litter bags were incubated in each stream containing 3 ± 0.05 g of P. sellowii leaves. The reference streams presented higher values of dissolved oxygen and lower values of nutrients, turbidity, electrical conductivity, total impermeable area and water temperature. The leaf breakdown rate (k) differed significantly between the reference (k = 0.014 ± 0.003 d-1) and impaired streams (k = 0.005 ± 0.001 d-1). The leaves incubated in the reference streams contained greater fungal biomass (measured as ergosterol concentration) and abundance of invertebrates, as well as greater presence of shredders, with k values being related to the biomass of these organisms. Overall, there were clear differences between the leaf mass loss in the reference and impaired streams. These results reinforce the negative effect of urbanization on leaf breakdown and fungal and shredder biomass. In the second experiment were performed withdrawn after 7, 15, 30, 60, 90 and 120 days, in three backwaters and three rapids only in streams references. The main results were: at the end of the experiment remained 16.63% (backwaters) and 10.30% (rapids) of dry mass, which differed only between days of the experiment and not between mesohabitats and was influenced by fungal biomass; there was an increase in biomass of these microorganisms on day 90, differing only from the days of the experiment and being influenced by temperature and O2; the abundance of invertebrates was higher in rapids and on the 30 th, presenting difference between mesohabitats and between days, and being influenced by temperature, O2 and speed; greater richness was recorded in backwaters and day 60; the family Chironomidae was the most abundant throughout the experiment in both mesohabitats; the abundance and biomass of shredders were low; non-metric multidimensional scaling showed the separation of mesohabitats and initial and final periods of decomposition. Through the second experiment it was observed that the mass loss in the low-order stream ecosystems is more influenced by the biomass of fungi that the biomass of shredders and the velocity of the water. Additionally, we found that differences in the abundance, richness and composition invertebados are influenced by differences between mesohabitats and the succession in the decomposition. These results help to reinforce the importance of plant material of terrestrial origin as an energy source for invertebrates in streams, and the need for preservation of riparian vegetation.

The automotive industry with its highly competitive environment together with high research and development costs is struggling to increase shareholder return. Cross-functional teams are employed to source suppliers which are helping to reduce production and development costs in close cooperation with the other departments. When working in a competitive environment and with external actors, intellectual property becomes increasingly important and organizational effort is directed to increase the generation and usage of such. Patent portfolio analysis is a well-known tool used to extract information from surrounding actors’ patents, which traditionally mainly was used for product development, but has potential to increase gross profit through cross-functional sourcing teams as well.  The purpose of this study is to investigate how to implement and use patent portfolio analysis as a cross-functional tool in the automotive industry. In order to fulfill the purpose, a qualitative case study has been conducted including both qualitative interviews, as well as action research in the form of workshops at the case company. The results were analyzed using a tailored framework denominated the system integration model which is a combination of the technology acceptance model and the managing strategy framework. The systems integration model was developed and validated by the researchers during the research process. The research result shows that patent portfolio analysis has a high perceived usefulness but a low actual system use within the studied company, especially in the sourcing department. The main barrier to use patent portfolio analysis cross-functionally was that the intellectual property strategy was not yet fully communicated and linked to the different departments’ objectives. There were also barriers found in the communication between- and the understanding of- each other’s departments, which could be reduced by increased education and promoting clear contact points and guidelines. The final conclusion of this research was that patent portfolio analysis likely could be used cross functionally to map the competitive landscape and increase gross profit by protection innovations through product development and sourcing. / Fordonssektorn kännetecknas av höga utvecklingskostnader och en konkurrenskraftig marknad där aktörerna strävar mot vinst till aktieägare. För att ge en hög avkastning till aktieägarna så arbetar man i tvärfunktionella team för att minska produktion och utvecklingskostnader samt för att anlita de bästa leverantörerna. Att arbeta i en konkurrenskraftig miljö med externa aktörer gör att immateriella rättigheter blir allt viktigare och företag satsar därför stora resurser för att detta ska hanteras på rätt sätt. Patentportföljanalys är ett välkänt verktyg för att extrahera information från omgivande aktörers patent, vilket traditionellt främst har använts i produktutveckling, men även har potential att öka bruttoresultat genom ett effektivare samarbete över avdelningar i tvärfunktionella inköpsteam. Syftet med denna studie är att undersöka hur man implementerar och använder patentportföljanalys som ett tvärfunktionellt verktyg inom fordonssektorn. För att uppfylla syftet har en kvalitativ fallstudie genomförts genom kvalitativa intervjuer och workshops vid det undersökta företaget. Resultatet analyserades med hjälp av ett skräddarsytt ramverk som forskarna för denna undersökning benämnt som ”the system integration model”. Det här ramverket sammansvetsar den välkända modellen ”technology acceptance model” som syftar till att undersöka acceptans av ny teknik och den välkända modellen ”Managing four processes” som handlar om hur man skapar ett strategiskt management verktyg. ”The system integration model” utvecklades och validerades av forskarna i flera steg under studien. Resultatet visar att patentportföljanalys har en hög uppfattad nytta trots att det är låg systemanvändning i det undersökta företaget i dagsläget, särskilt i inköpsavdelningen. Den största barriären för användandet av patentportföljanalysen verkar vara att företagsstrategin för immateriella rättigheter ännu inte har kommunicerats och kopplats till de olika avdelningarna fullt ut. Det noterades även barriärer i kommunikationen mellan- och förståelsen för- de olika avdelningarna, vilken kan minskas genom utbildning och tydliga kontaktpunkter och riktlinjer. Den här undersökningen indikerar ytterligare på att patentportföljanalys är användbart i tvärfunktionella team då det ger möjligheten att kartlägga konkurrenslandskapet, säkra produkt- och eftermarknadsexklusivitet och förbättra leverantörsavtal, vilket i sin tur kan öka bruttovinsten.