A seleção de fornecedores de transporte é um desafio cada vez maior. O crescimento da rede de clientes a ser coberta demanda uma alocação eficiente em termos de custo não suprida por mecanismos tradicionais de negociação. Neste âmbito, o leilão combinatório torna-se uma alternativa de negociação ao permitir capturar sinergias entre os trajetos que devem ser atendidos. Em conseqüência disso, diminui-se o custo de transporte do fornecedor que se reflete nos menores preços de suas propostas e finalmente no custo total de compra do serviço. Por outro lado, esta decisão envolve fatores além do custo total; a mensuração destes torna-se importante para identificar fornecedores que melhor se ajustam aos requerimentos do comprador. No entanto, é fundamental escolher um método adequado para sua avaliação porque este influência a decisão final. Este problema de compra de serviços de transporte é conhecido na literatura como Winner Determination Problem (WDP) que, devido a sua complexidade, possui uma resolução limitada. Após revisão teórica, foi observado que os estudos relacionados à área de transporte focalizavam o desenvolvimento de modelos matemáticos que fossem representativos da realidade. Alguns destes modelos abordam a utilização de múltiplos critérios atribuindo um coeficiente que pondera cada critério. Evidenciou-se a necessidade do desenvolvimento de um algoritmo alternativo que além de facilitar sinergias entre trajetos, fosse abrangente o suficiente para tratar múltiplos critérios em instâncias compatíveis com problemas reais. Logo, com o intuito de contribuir com a literatura foi adaptado um algoritmo matemático otimizante ao problema de compras de fornecedores de transporte com base no algoritmo de Sandholm (2002). Este algoritmo aplica leilão combinatório de compras, apoiando-se na teoria da análise de decisão para mensurar critérios relevantes do comprador. Inicialmente, o algoritmo minimiza o custo total do comprador designando combinações de trajetos e fornecedores; depois é modificado para o tratamento multi-critério. Os resultados obtidos foram comparados com o software comercial CPLEX. / Selecting suppliers is a crescent challenge for the enterprises. The extent of the client web that needs to be served demands efficient allocations, in terms of cost, that are not addressed by traditional mechanisms. In this scenario, another mechanism came to be: the combinatorial auction. In this one, suppliers can express their synergies on routes they wish to supply. This leads to lowering their transportation costs, which is reflected in lower bidding prices as well as in the total cost of service. On the other hand, the selection of a supplier involves other criteria besides cost. The definition of these is essential to define which supplier fits the needs of the buyer. That is why it is of most importance to choose the right method to evaluate these needs, as it defines the final choice. This problem is known as Winner Determination Problem (WDP) and due to its complexity, possesses a feeble solution. After compiling what has been done about the subject, it was noticed that in the field of transport, studies are focused on mathematical models that represent reality. Some models address criteria assigning coefficients to the objective function by weighting on it. Clearly, there was a need for alternative algorithms that would, besides promoting synergies on routes, also treat multi-criteria problems close to reality. Therefore, searching for a valid contribution in the field, an adaption of an optimizing algorithm based on Sandholm (2002)s was made. The algorithm applies combinatorial auction, supported by decision analysis for measuring relevant buyers criteria. First, the main algorithms objective is to minimize buyers costs by combining routes and suppliers; then, a modified approach considers multi criteria. Results were then compared to the commercial software CPLEX.

Träning medför såväl fysiska som psykiska hälsofördelar. Trots att detta är vedertaget, tränar människor olika mycket och det finns även en andel människor som tränar otillräckligt. I föreliggande studie användes Self-Determination Theory (SDT) och Theory of Planned Behavior (TPB), för att undersöka om faktorer inom dessa teorier kan förutsäga hur mycket människor i åldern 18 – 30 tränar i veckan. Data från personer som tränade olika mycket (n= 196, Målder= 24.94, SD= 2.69) samlades in genom ett elektroniskt självskattningsformulär som bestod av frågor om träning, Behavioral Regulations in Exercise Questionnaire (BREQ-3) och Theory of Planned Behavior Questionnaire. Multipla regressionsanalyser genomfördes för att undersöka hur väl SDT, TPB och en kombination av dessa predicerade träningsmängd. Resultatet visade att SDT och TPB såväl enskilt som tillsammans förklarade en signifikant andel av variansen i träningsmängd, samt att autonom motivation från SDT och upplevd beteendekontroll från TPB var de bästa prediktorerna för träningsmängd. Detta pekar på att en upplevelse av att träning är lätt, glädjefyllt och en integrerad del av en själv, förutsäger hög träningsmängd i veckan. Framtida forskning kan med fördel undersöka vilka andra faktorer utöver SDT och TPB som kan förklara varför människor tränar olika mycket. / Exercise entails both physical and mental health benefits. Despite this being common knowledge, people differ in the amount of exercise performed and some even exercise insufficiently. In the present study Self-Determination Theory (SDT) and Theory of Planned Behavior (TPB) were used to examine if factors within these theories can predict the amount of exercise performed in a week by people in the age of 18 to 30 years. Data from people that differed in the amount of exercise (n= 196, Mage= 24.94, SD= 2.69) was gathered through an electronic survey consisting of questions regarding exercise, Behavioral Regulations in Exercise Questionnaire (BREQ-3) and Theory of Planned Behavior Questionnaire. Multiple regression analysis was used to examine to what extent SDT, TPB and a combination of these were able to predict the amount of exercise. Results showed that SDT and TPB, both together and on their own, explained a significant amount of the variance in the amount of exercise performed and that autonomous motivation from SDT and perceived behavioral control from TPB were the best predictors for the amount of exercise performed. This suggests that the experience of exercise being easy, joyful and an integrated part of the self, predicts a high amount of exercise. Future research could examine other factors beyond SDT and TPB that can explain the difference in the amount of exercise people perform.

The thesis aims to present Leibniz's monadic system as the simplest conceivable structure. To this end, the thesis employs both contemporary literature concerned with formal ontology and its logic, semantics and the nature of reference; and Leibniz's own writings coupled with correspondent commentaries, including articles transcending selected interpretive issues into present-day discussions on actualised versions of one of the essential Leibnizian principles: the identity of indiscernibles. The exposition proceeds in three steps: (i) developing concepts of structure, determination and reference in critical confrontation with contemporary approaches, then (ii) applying those concepts to the interpretation of Leibniz's principle of identity of indiscenibles and illuminating therewith links between ontology and semantics, and eventually (iii) utilizing those findings in clarifying the mirroring relation constitutive of the monadic structure as represented a) in Leibniz's own spatiotemporal illustrations and b) in formal models in secondary literature. Acknowledging that the simplest conceivable structure, which is the monadic structure, can neither be satisfactorily expressed by spatiotemporal illustrations, nor can it be represented in formal system, itself forming the limit of extrinsic...

Determinação a baixo custo de açúcares redutores totais em caldo-de-cana, empregando sistema de análise por injeção em fluxo com o uso de DNS Um sistema de análise por injeção em fluxo foi utilizado para a determinação de açúcares redutores totais em caldo-de-cana. O método é baseado na hidrólise da sacarose, seguido da oxidação dos açúcares redutores pelo ácido 3,5-dinitrosalicílico (DNS) em meio alcalino, e determinação espectrofotométrica em 510 nm. Visando obter melhor sensibilidade e seletividade, os parâmetros volume de amostra e comprimento dos reatores foram estudados para avaliar o comportamento das curvas analíticas. Foram utilizados mini-compressores de aquários no lugar de bomba peristálticas e cela espectrofotométrica em acrílico no lugar de cela de vidro importada, a fim de minimizar o consumo de reagentes e o custo do sistema FIA. O presente sistema foi comparado ao método Lane-Eynon recomendado pelo Ministério da Agricultura. Usando o teste-t, não foram constatadas diferenças significativas entre os resultados dos dois métodos, sendo que os desvios relativos foram ao redor de 1%. O método permite analisar cerca de 14 amostras h-1 com desvio padrão relativo inferior a 1,35%. / A flow injection analysis system was employed for determination of total reducing sugars in sugar cane broth. The method is based on hydrolysis of sucrose followed by oxidation of reducing sugars by 3,5-dinitrosalicylic acid (DNS) in alkaline solution and spectrophotometric determination at 510 nm. In order to obtain better sensitivity and selectivity, the parameters sample volume and reactor length were studied to evaluate the behavior of the analytical curves. Aiming the use of low reagents amount and a low cost in FIA system, fish aquarium mini-compressors were used instead of peristaltic pumps and acrylic spectrophotometric 0011 instead of imported glass cell. The present system was compared to Lane-Eynon method recommended by the Brazilian Ministry of Agriculture. Using the t-test no sígnificant differences were observed between both methods, with relative deviations around of 1%. The method allows analyses of ca. 14 samples h-1 with relative standard deviation lower than 1.35%.

A estimativa da idade é um elemento importante na investigação antropológica, sendo uma das fontes preliminares dos dados para estabelecer a identidade de pessoas vivas ou restos mortais desconhecidos. Os métodos mais utilizados para este fim são os baseados no desenvolvimento ósseo e dentário dos indivíduos. Neste sentido, o presente trabalho apresentou como objetivo, estabelecer valores de referência na população brasileira para a estimativa da idade, por meio de dois métodos: a análise da mineralização dos terceiros molares; e a mensuração da altura do ramo mandibular. Para isso, foram escaneadas radiografias (407 panorâmicas e 289 cefalométricas em norma lateral) de pacientes, de 6 a 25 anos de idade, atendidos na Faculdade de Odontologia de Bauru. As imagens radiográficas panorâmicas foram utilizadas para análise da mineralização dos terceiros molares inferiores, através do método proposto por Demirjian, Goldstein e Tanner (1973), e as imagens radiográficas cefalométricas utilizadas para medir a altura do ramo da mandíbula. Os resultados indicam uma forte correlação entre a idade cronológica e ambos os métodos utilizados, proporcionando a elaboração de fórmulas para o cálculo da idade aproximada dos indivíduos na população estuda. Não houve diferença estatisticamente significante para o desenvolvimento dos terceiros molares entre os sexos. Já para a altura do ramo da mandíbula, essa diferença ocorreu entre os 16 e 25 anos de idade. A probabilidade de afirmamos que um indivíduo tem 18 anos ou mais de idade, com base nas duas metodologias proposta neste trabalho, é extremamente alta (>90%). Concluiu-se que ambos os métodos estariam aptos a serem utilizados para estimar a idade na população brasileira, entretanto, pelo fato do Brasil ser um país com extenso território e apresentar uma população bastante miscigenada, novos estudos devem ser realizados, aumentando a amostra dessa população, e permitindo o aprimoramento dos valores aqui informados. / Age determination is an important element in anthropological research, one of the primary sources of data to establish the person living identity or unknown remains. The aim of this paper was to establish reference values in Brazilian population to estimate chronological age by two methods: mineralization of third molars and measurement of the mandible ramus height. Therefore, radiographs from patients between 6 to 25 years, were scanned (407 panoramics and 289 cephalometrics). The patients were from School of Dentistry at Bauru. The panoramic radiographs were used for analysis the mineralization of the mandibular third molars. Moreover, cephalometric radiographs were used to measure the mandibular height. The results indicated a strong correlation between chronological age and both methods, providing the development of formulas for calculating the approximate real age of individuals by radiographs. There was no statistically significant difference for the third molars development between sexes. There was a significant difference between men and women for ramus height of the mandible for the range between 16 and 25 years. The probability of a claim that an individual is 18 years or older, based on the two methodologies proposed in this work was extremely high (>90%). It was concluded that both methods were suitable to be used to estimate the age in Brazilian population. However, as Brazil is a country with vast territory and present a fairly mixed population, it is necessary further studies to confirm the values reported.

<p><strong><p>Abstract</p><p>The purpose of this study was to investigate the consultants' approach to the intrinsic and extrinsic motivation in temporary work agencies. We examined the motivation of three temporary work agencies to see if there are any differences in how they motivate their consultants. The intrinsic motivation comes from the own spontaneous interest while the extrinsic is related to the surrounding circumstances.</p><p>We created a survey with 42 questions for the consultants, concerning motivation in order to understand their attitudes to the phenomenon of motivation.</p><p>The following issues are addressed in our study:</p><p>- What are consultant’s experiences of motivation in the temporary work agencies and are there any background factors that may impact?</p><p>- Are there any differences in how consultants in the three different temporary work agencies are experiencing motivation?</p><p>As analytical tools, we used concepts and theories of the intrinsic and extrinsic motivation based on Self-Determination theory.</p><p>The results of this study showed no distinct differences between the intrinsic and extrinsic motivation of all consultants, but in general the intrinsic motivation was experienced slightly higher rated. The consultants appeared to be aware of what was expected of them and communication was valued fairly well. A positive attitude towards the organization was that the consultants were the least satisfied with, in our study. Our conclusion is that the intrinsic and extrinsic motivations interact with each other, depending on the work situation.</p></strong></p> / <p><strong><p>Sammanfattning</p><p>Syftet med denna studie var att kartlägga konsulternas syn på den inre och yttre motivationen i bemanningsföretag. Vi undersökte motivationen på tre bemanningsföretag för att se om det fanns någon skillnad i hur de motiverar deras konsulter. Den inre motivationen handlar om det spontana egna intresset medan den yttre uppstår från omgivningens omständigheter.</p><p>För att uppnå syftet har vi använt oss av en enkätundersökning med 42 frågor riktade till konsulterna för att fånga deras attityder till motivationsfenomenet.</p><p>Följande frågeställningar besvaras i studien;</p><p>- Hur upplever konsulterna i bemanningsföretagen sin motivation och finns det några bakgrundfaktorer som får betydelse?</p><p>- Finns det några skillnader i hur konsulterna i de tre olika bemanningsföretag upplever motivationen?</p><p>Som analysverktyg har vi använt oss av begrepp och teorier om den inre och yttre motivationen som bygger på Self-Determination theory.</p><p>Resultatet av studien visar inte på några markanta skillnader mellan den inre och yttre motivationen hos samtliga bemanningsföretag, men den inre motivationen upplevdes lite starkare. Konsulterna visade sig vara medvetna om vad som förväntades av dem och kommunikationen värderades relativt bra. En positiv inställning till organisationen var det som konsulterna var minst nöjda med enligt vår studie. Vår slutsats blev att den inre och yttre motivationen samspelar med varandra, beroende av arbetssituationen.</p></strong></p>

Syftet med den här kvalitativa intervjustudien var att undersöka hur personal i ett omsorgsföretag ser på sig själva och sitt arbete i relation till kompetens, samhörighet och autonomi. Dessa tre begrepp är centrala i Self-determination theory. Resultatet visade att samhörigheten främjades av ett nära samarbete med kollegor och genom många gemensamma aktiviteter, både på arbetstid och utanför. Det främsta hindret för att uppleva samhörighet var om arbetsgruppen strävade åt olika håll eller om det uppstod konflikter i samspelet. Kompetens innebar för respondenterna att känna sig trygga i sitt bemötande av brukarna och att de visste vad de skulle göra i olika situationer. Även om de uttryckte en viss saknad av kunskap inför utagerande- och självskadebeteende så upplevdes ändå de lagar och regler som styrde verksamheten vara det som skapade störst osäkerhet och kunde vara hindrade för känslan av att uppleva sig kompetent. Resultatet visade också att respondenterna, trots att verksamheten till stor del styrdes av lagar och regler, upplevde en känsla av autonomi så länge de fick vara delaktiga i att planera och organisera arbetsuppgifternas utformning. / The main objective of this qualitative interview study was to examine how personnel elemployed at a company providing social care services, view themselves and their work in relation to competence, relatedness and autonomy. These three concepts are an essential part of Self-Determination Theory. The result showed that relatedness was promoted by close cooperation between colleagues and by frequent common activities during the workday, but also by activities with colleagues outside work. Main obstacles to relatedness appeared when the staff were striving in different directions and when conflicts emerged. The respondents felt competent in interaction with the clients and when it was clearly stated how they were supposed to act in specific situations. The respondents expressed the need for more of knowledge of self-harming behavior and similar behaviors of acting out. However, the main obstacle to feeling competent was insecurity of what laws and regulations that govern their workplace. Despite the fact that laws and regulations govern a large part of their work, the respondents expressed that they felt reasonable autonomous as long as they participated in the planning and organization of different tasks.

ABSTRAKTTitel: Autonomi vs. Kontroll. - Hur ser det ut på Samhall? Nivå: C-uppsats i ämnet företagsekonomi Författare: Thomas Christiansson &amp; Per Fredrik Tranfeldt Handledare: Dr Jonas Kågström Datum: Juni 2011 Syfte: Syftet med denna uppsats är att med hjälp av SDT (Self- Determination Theory) undersöka om de anställda upplever sin arbetsplats som autonom eller kontrollerad. Grundförutsättningen för att kunna få en anställning på Samhall är att man har enfunktionsnedsättning. Samtidigt har företaget som mål att få så många som möjligt attlämna företaget för andra reguljära arbetsgivare. Detta med anledning av att man är ettstatligt personalutvecklingsföretag. Samhall jobbar i motsatt riktning till skillnad frånliknande företag, och vi har därför valt att undersöka detta företag. Metod: Vi har använt oss av kvantitativ metod. Data har samlats in genom enenkätundersökning hos Samhalls anställda i Bollnäs, Gävle och Söderhamn. Enkäten i sintur är uppbyggd och framtagen av de främsta forskarna inom SDT (University ofRochester) och genomfördes i pappersform. Vi har sedan sammanställt svaren i GoogleDocuments för att enklare kunna se resultaten med hjälp av tabeller och diagram. Istatistikprogrammet SPSS har vi sedan kunnat ta fram medelvärden och standardavvikelserför djupare analys samt en faktoranalys. Redovisningen av resultatet har skett i form avskrift, diagram samt tabeller från SPSS. Resultat &amp; slutsats: Resultatet av undersökningen visar att de anställda upplever Samhallsom en autonom arbetsplats. Dock visar resultatet även på att en av fem anställda inte vetvilket mål de har och inte heller vad de måste göra för att ta sig dit. Vi har kunnat visa påatt vår empiri korroborerar SDT teorin (Self-Determination Theory) vilket vi visar medhjälp av en faktoranalys. Förslag till fortsattforskning: Man kan genomföra en liknande undersökning på ett annatföretag och sedan jämföra resultaten. Med hjälp av SDT mäta samtliga faktorer på Samhallmen man kan också välja ut ett bredare geografiskt urval för undersökningen. Uppsatsens bidrag: Genom vårt arbete har vi kunna påvisa Samhalls position påautonomitermometern. Arbetet visar även på att företaget bör bli bättre inom vissaområden. Nyckelord: Autonomi, faktoranalys, motivation, respondenter, Samhall, SelfDetermination Theory(SDT) och korroborerar. / Title: Autonomy vs. Control. –What´s the situation like at Samhall? Level: Final assignment for Bachelor Degree in Business Administration Authors: Thomas Christiansson &amp; Per Fredrik Tranfeldt Supervisor: Dr Jonas KågströmDate: June 2011 Aim: The purpose of this paper is that by using the SDT (Self- Determination Theory) todetermine whether the employees perceive their workplace as autonomous or controlled. Thebasic requirement to get a job at Samhall is being disabled. Samhall aim to get as manypeople as possible to leave the company for other regular employers. The reason for this isthat Samhall is a state-owned company assigned to provide development opportunities forpeople. Samhall works in the opposite direction in contrast to similar companies and we havetherefore chosen to study this company. Method: We used the quantitative method. Data were collected through a survey of Samhallemployees in Bollnäs, Gävle and Söderhamn. The questionnaire, in its turn, is built anddesigned by the leading researchers in the SDT (University of Rochester) and was completedin paper form. We have then compiled it in Google Documents to more easily see the resultsusing tables and graphs. By using the statistical program SPSS, we have been able to calculatemeans and standard deviations for deeper analysis, in addition, we accomplished a factoranalysis. The presentation of the results has been in writing, diagrams and tables from SPSS. Results &amp; Conclusions: The results of the survey show that employees perceive Samhall asan autonomous place of work. However, the results also show that one in five workers do notknow their goal nor what they must do to get there. We have shown that our empiricismcorroborate SDT theory (Self-Determination Theory), which we prove by the factor analysis. Suggestions for future research: Conduct a similar study at another company and thencompare the results. Using the SDT and measure all elements at Samhall, but also to select awider geographic range of the survey. Contributions of the thesis: Through our work we have been able to show Samhall´sposition on our autonomy thermometer. This work has also shows that Samhall should be better in some areas. Keywords: Autonomy, factor analysis, motivation, respondents, Samhall, Self- DeterminationTheory (SDT), corroboration.

Syftet med studien var att undersöka SPIRA-projektets deltagares uppfattningar om motivation och uppfattningar om projektets eventuella påverkan på motivationen. Samt uppfattningar hos några tidigare deltagare i projektet. SPIRA-projektets syfte är att stärka kompetensen hos sina deltagare och målgruppen är individer som varit arbetslösa i ett år eller mer, alternativt sjukskrivna i minst sex månader. Tidigare forskning inom arbetslöshet och motivation tyder på att de individer som drivs av en motivation med en hög grad autonomi har en större chans att vara lyckosamma. De anses även vara mer ihärdiga i sitt arbetssökande och har ett högre välmående än de som drivs av motivation med en låg grad autonomi. Däremot har ingen liknande undersökning gjorts inom denna grupp. Metoden i studien var semi-strukturerad enkät med öppna frågor och enkäten delades ut till 20 nuvarande deltagare och 15 tidigare deltagare, varav 20 nuvarande och 5 tidigare svarade. Bearbetningen av empirin genomfördes med inspiration av Self-Determination Theory och dess underteori, Organismic Integration Theory (OIT), där det finns olika grader av motivation. Slutsatserna i studien är att respondenterna uppfattar motivation som någonting med en hög grad autonomi. De drivs även överlag av en motivation med en hög grad av autonomi, men det är ofta ett förväntat yttre värde som ligger bakom motivationen. Vidare är även respondenterna generellt nöjda med projektets utformning och de främjande faktorerna inom projektet kännetecknas av en hög grad autonomi. Samtidigt som de hämmande faktorerna präglas av en låg grad av autonomi.

Abstract The purpose of this study was to investigate the consultants' approach to the intrinsic and extrinsic motivation in temporary work agencies. We examined the motivation of three temporary work agencies to see if there are any differences in how they motivate their consultants. The intrinsic motivation comes from the own spontaneous interest while the extrinsic is related to the surrounding circumstances. We created a survey with 42 questions for the consultants, concerning motivation in order to understand their attitudes to the phenomenon of motivation. The following issues are addressed in our study: - What are consultant’s experiences of motivation in the temporary work agencies and are there any background factors that may impact? - Are there any differences in how consultants in the three different temporary work agencies are experiencing motivation? As analytical tools, we used concepts and theories of the intrinsic and extrinsic motivation based on Self-Determination theory. The results of this study showed no distinct differences between the intrinsic and extrinsic motivation of all consultants, but in general the intrinsic motivation was experienced slightly higher rated. The consultants appeared to be aware of what was expected of them and communication was valued fairly well. A positive attitude towards the organization was that the consultants were the least satisfied with, in our study. Our conclusion is that the intrinsic and extrinsic motivations interact with each other, depending on the work situation. / Sammanfattning Syftet med denna studie var att kartlägga konsulternas syn på den inre och yttre motivationen i bemanningsföretag. Vi undersökte motivationen på tre bemanningsföretag för att se om det fanns någon skillnad i hur de motiverar deras konsulter. Den inre motivationen handlar om det spontana egna intresset medan den yttre uppstår från omgivningens omständigheter. För att uppnå syftet har vi använt oss av en enkätundersökning med 42 frågor riktade till konsulterna för att fånga deras attityder till motivationsfenomenet. Följande frågeställningar besvaras i studien; - Hur upplever konsulterna i bemanningsföretagen sin motivation och finns det några bakgrundfaktorer som får betydelse? - Finns det några skillnader i hur konsulterna i de tre olika bemanningsföretag upplever motivationen? Som analysverktyg har vi använt oss av begrepp och teorier om den inre och yttre motivationen som bygger på Self-Determination theory. Resultatet av studien visar inte på några markanta skillnader mellan den inre och yttre motivationen hos samtliga bemanningsföretag, men den inre motivationen upplevdes lite starkare. Konsulterna visade sig vara medvetna om vad som förväntades av dem och kommunikationen värderades relativt bra. En positiv inställning till organisationen var det som konsulterna var minst nöjda med enligt vår studie. Vår slutsats blev att den inre och yttre motivationen samspelar med varandra, beroende av arbetssituationen.