”När man kollar på bilden tänker man så här” : en receptionsstudie av gymnasieelevers uppfattning om bilder som kunskapskällor i historieundervisningen

Images are used in history education for a variety of reasons, not least to generate interest through a better understanding of historical events and people. The aim of this study was to investigate how historical pictures, either illustrated or documentary/photographic, can be used as a resource for activating and improving pupils' historical empathy, in the way described by Stéphane Lévasque. I conducted a reception study on five different focus groups consisting of pupils from different upper secondary schools in Sweden. The pupils varied with regard to number of credits for admission to upper secondary school. A sixth group of pupils was interviewed as a contrasting control group in order to add perspective to the results. The discussions were based on the pupils' interpretations of 34 selected pictures, all of which were taken from the most common history textbooks. Each pupil was asked to choose the picture he/she felt was the most representative historical image. On the basis of the strategies used by the pupils when interpreting the pictures and discussing them, the material was analysed in accordance with Lévesque's categories: imagination, historical contextualisation and morals. The last category, morals, was further divided into three sub-categories: sense of justice, sympathy and progression. The reflections of the pupils and the degree of contextualisation varied. It appeared that the pupils were less inclined to discuss assumptions about the persons in the pictures; instead they chose to discuss the historical context in question. The pictures in this study did not seem to trigger the pupils to fabricate anachronistic reasoning about history; when they did produce lengthy reasoning, it was contextual, structural and metahistorical. In this context, the pupils who belonged to the group with the highest average of credits showed some signs of reflection on the basis of historical context and some criticism about the historical sources. On no occasion did any of the pupils choose a picture as a concrete expression of injustice. One of the questions this study aimed to explore was whether a lack of historical context affects how pictures trigger emotions and reasoning on the basis of moral aspects. Some of the pupils displayed moral standpoints, primarily the degree of morals concerning injustice. One possible interpretation could be that the feeling of being unfairly treated and subjected to insulting behaviour and social injustice was something the pupils could relate to. The group of pupils who had not yet studied history at upper secondary school, the control group, generally made reflections using this sort of reasoning when they discussed the historical aspects of the pictures.

Barnmorskans uppfattning om indikationer och effekter av förlossning med elektiva kejsarsnitt på humanitär indikation utifrån arbetslivserfarenhet : En intervjustudie

Bakgrund: Statistik visar på ökat antal elektiva kejsarsnitt internationellt och nationellt. Ett kejsarsnitt kan rädda liv på mor och barn om komplikationer uppstår, elektivt kejsarsnitt är även liksom andra stora operationer förenat med risker för komplikationer. Antalet elektiva kejsarsnitt på humanitär indikation har ökat i Sverige och cirka 17 % av alla förlossningar sker via kejsarsnitt. Att vårda och stödja kvinnor före, under och efter en förlossning med kejsarsnitt hör till barnmorskans arbete. Syftet med studien var att beskriva barnmorskors uppfattning om indikationer och effekter av förlossning med elektiva kejsarsnitt på humanitär indikation belyst utifrån arbetslivserfarenheter. Metod: kvalitativ metod: semistrukturella intervjuer med nio barnmorskor. Materialet analyserades via fenomenografisk analys i sju steg. Resultat: Fyra beskrivningskategorier framkom, Elektivt kejsarsnitt på humanitär indikation är ett etiskt dilemma, Elektivt kejsarsnitt på humanitär indikation är en stor operation, Elektivt kejsarsnitt på humanitär indikation påverkar organisation och barnmorskans arbetsmiljö och Elektivt kejsarsnitt på humanitär indikation påverkar kvinnans förlossningsupplevelse. Vidare framkom nio kategorier som beskriver barnmorskors uppfattningar. Slutsats Barnmorskor uppfattar elektiva kejsarsnitt som något komplext, att de med sina yrkeskunskaper värnar det naturliga vid kejsarsnitt på humanitär indikation och att de har brist på mandat att stödja och stärka kvinnors informerade val om elektivt kejsarsnitt på humanitär indikation. Klinisk tillämpbarhet: Resultatet kan användas vid undervisning kring barnmorskans stödjande och vårdande arbete i samband med förlossning via kejsarsnitt. Vidare kan resultatet vara underlag till diskussioner inom mödrahälsovård och förlossning i syfte att ge barnmorskor stärkt mandat till sina stödjande och informativa uppgifter.

Barnmorskors erfarenheter av preventivmedelsrådgivning på ungdomsmottagning : - En intervjustudie

Bakgrund: Barnmorskans arbetsfält omfattar idag sexuell-, reproduktiv- och perinatal hälsa och det centrala i yrkesutövningen är att främja hälsa. Barnmorskan ska ha kunskaper om, kunna ge information och undervisa om sexualitet och samlevnad utifrån ett genus- och livscykelperspektiv. Uppdraget på ungdomsmottagning är att arbeta med sexualitet och hälsa samt att förebygga oönskade graviditeter och STI. Syfte: Syftet var att beskriva barnmorskors erfarenheter av preventivmedelsrådgivning på ungdomsmottagning. Metod: Individuella intervjuer genomfordes med nio barnmorskor på ungdomsmottagningar. Vid intervjutillfället användes en frågeguide och semistrukturerade frågor ställdes. Som analysmetod användes kvalitativ innehållsanalys. Resultat: Fyra kategorier och 15 subkategorier identifierades. Kategorierna var enligt följande: Erfarenheten och kunskapens betydelse, Det kliniska arbetssättet, Modererande faktorer och Utmaningar. Slutsats: Barnmorskor uppgav god kunskap och goda erfarenheter av ungdomar och preventivmedelsrådgivning på ungdomsmottagning men menade att det är ett dynamiskt arbete som bidrar till ständig utveckling. Vid möten med preventivmedelssökande ungdomar på ungdomsmottagning fanns önskan att mötet skulle ske på individnivå. Erfarenheter av modererande faktorer för barnmorskan, utmaningar för preventivmedelsrådgivningen och följsamheten fanns vilket innebar att preventivmedelsrådgivning för ungdomar på ungdomsmottagning är komplext. Klinisk tillämpbarhet: Studiens resultat skulle kunna innebära ökad förståelse för arbetet på ungdomsmottagning och skapa underlag för att möta utmaningarna som barnmorskorna möter i det dagliga arbetet.

De anställdas outnyttjade kreativitet : En fallstudie på Ica DE Borlänge

Syftet med examensarbetet var att med utgångspunkt i ett konkret exempel, beskriva hur företag kan organisera verksamheten för att ta till vara på de anställdas outnyttjade kreativitet. Materialet i examensarbetet kan mycket väl tillämpas och användas i andra organisationer än den studerade organisationen Ica DE Borlänge. Dock bör beaktande tas till den specifika kontexten som föreligger vid implementeringen av materialet. Med stöd av den teoretiska referensramen visar resultaten av analysen ett behov av en ny organisationsstruktur med tydliga roller och nya belöningssystem. Den studerade organisationen är en lärande organisation där ett medarbetarengagemang söker främjas. Genom en ny organisationsstruktur med tydliga roller ökar detta medarbetarengagemanget och fler genomförda förbättringar genomförs snabbare, vilket bidrar till att de anställdas outnyttjade kreativitet tillvaratas på ett framgångsrikt sätt. De nya belöningssystemen flyttar fokus till medarbetarengagemanget och förbättringsarbetet, vilket främjar ett genomsyrande Lean-tänkande i organisationen. Belöningssystemen skapar även jämnare produktionsflöden som höjer arbetssäkerheten, ökar produktionskvalitén, minimerar stress samt skapar goda förutsättningar för att beräkna personalbemanningen. Kvalitativa metoder har använts för datainsamlingen. Dessa utfördes genom en förstudie och en fallstudie. Fallstudien bestod utav bakgrundsintervjuer, en intervjustudie samt en observation. Det empiriska materialet visar att organisationen arbetar med ett omfattande förbättringsarbete i alla organisatoriska nivåer. Både chefer och medarbetare har viljan och ambitionen att få till ett framgångsrikt förbättringsarbete, men trots flera års arbete med Lean efterfrågas ändå mer tid, bättre organisationsstruktur samt en sambandskoordinatör med specialistkompetens som driver förbättringsarbetet framåt. Empirin ger en viss indikation på att förbättringsverksamheten har anpassats och organiserats till den befintliga organisationsstrukturen. Förbättringsarbetet torde bli mer framgångsrikt om verksamheten anpassas och organiseras utefter de anställdas outnyttjade kreativitet istället. I summering av slutsatsen åskådliggörs två centrala variabler som kan bidra till långsiktiga framgångar i arbetet med att tillvarata de anställdas outnyttjade kreativitet. En ny organisationsstruktur med tydliga roller som fokuserar på förbättringsarbetet samt nya belöningssystem för inlämnade förbättringsförslag, skulle vara av stor betydelse för ett långsiktigt medarbetarengagemang i en framgångsrik organisation.

Globalização de competências tecnológicas inovadoras no contexto de industrialização recente: evidências de uma amostra de institutos de pesquisa e desenvolvimento (P&D) em Tecnologias de Informação e Comunicação (TIC) no Brasil

This dissertation adds new evidences and explanations to two distinct streams of debate. The first one refers to the globalisation (or dissemination) of technological innovative capabilities in the context of newly industrialised economies. The second one refers to common generalisations about the deterioration of the innovative capabilities in Latin American countries after 1990. This study was motivated by a lack of empirical studies focused on the relationship between the globalisation of innovative capabilities and sources to build them up in emerging organisations, especially R&D institutes. This dissertation is focused on the globalisation of innovative capabilities at the information and communication technology industry in Brazil. The globalisation of innovative capabilities is measured by the technological capabilities types and levels of 18 national R&D institutes related to this industry. Besides, this dissertation examines sources to build up innovative capabilities in the sampled institutes, namely: their intra-organisational learning processes and the linkages established with firms and the technological infra-structure. The study is based on first-hand empirical evidences, collected by different data-gathering sources in an extensive fieldwork. The data were examined with analytical frameworks, organised in the light of the theoretical basis of the study. The study has found the dissemination of innovative capabilities has been occurring in the Brazilian ICT industry with the involvement of the technological infra-structure with innovative activities. Besides that, the variety of the intra-organisational learning processes and the types of linkages established with technological infra-structure and firms have been influencing the development of innovative capabilities. The evidences that emerge from this study contradict common generalizations and arguments about the inexistence of innovative activities and about the technological infra-structure weakness in emerging or newly industrialized economies.

Avaliação de compostos com actividade inibidora da glicoproteína-P

A resistência a múltiplos fármacos é um grande problema na terapia anti-cancerígena, sendo a glicoproteína-P (P-gp) uma das responsáveis por esta resistência. A realização deste trabalho incidiu principalmente no desenvolvimento de modelos matemáticos/estatísticos e “químicos”. Para os modelos matemáticos/estatísticos utilizamos métodos de Machine Learning como o Support Vector Machine (SVM) e o Random Forest, (RF) em relação aos modelos químicos utilizou-se farmacóforos. Os métodos acima mencionados foram aplicados a diversas proteínas P-gp, p53 e complexo p53-MDM2, utilizando duas famílias: as pifitrinas para a p53 e flavonóides para P-gp e, em menor medida, um grupo diversificado de moléculas de diversas famílias químicas. Nos modelos obtidos pelo SVM quando aplicados à P-gp e à família dos flavonóides, obtivemos bons valores através do kernel Radial Basis Function (RBF), com precisão de conjunto de treino de 94% e especificidade de 96%. Quanto ao conjunto de teste com previsão de 70% e especificidade de 67%, sendo que o número de falsos negativos foi o mais baixo comparativamente aos restantes kernels. Aplicando o RF à família dos flavonóides verificou-se que o conjunto de treino apresenta 86% de precisão e uma especificidade de 90%, quanto ao conjunto de teste obtivemos uma previsão de 70% e uma especificidade de 60%, existindo a particularidade de o número de falsos negativos ser o mais baixo. Repetindo o procedimento anterior (RF) e utilizando um total de 63 descritores, os resultados apresentaram valores inferiores obtendo-se para o conjunto de treino 79% de precisão e 82% de especificidade. Aplicando o modelo ao conjunto de teste obteve-se 70% de previsão e 60% de especificidade. Comparando os dois métodos, escolhemos o método SVM com o kernel RBF como modelo que nos garante os melhores resultados de classificação. Aplicamos o método SVM à P-gp e a um conjunto de moléculas não flavonóides que são transportados pela P-gp, obteve-se bons valores através do kernel RBF, com precisão de conjunto de treino de 95% e especificidade de 93%. Quanto ao conjunto de teste, obtivemos uma previsão de 70% e uma especificidade de 69%, existindo a particularidade de o número de falsos negativos ser o mais baixo. Aplicou-se o método do farmacóforo a três alvos, sendo estes, um conjunto de inibidores flavonóides e de substratos não flavonóides para a P-gp, um grupo de piftrinas para a p53 e um conjunto diversificado de estruturas para a ligação da p53-MDM2. Em cada um dos quatro modelos de farmacóforos obtidos identificou-se três características, sendo que as características referentes ao anel aromático e ao dador de ligações de hidrogénio estão presentes em todos os modelos obtidos. Realizando o rastreio em diversas bases de dados utilizando os modelos, obtivemos hits com uma grande diversidade estrutural.

A Learning Function for Parameter Reduction in Spiking Neural Networks with Radial Basis Function

Spiking neural networks - networks that encode information in the timing of spikes - are arising as a new approach in the artificial neural networks paradigm, emergent from cognitive science. One of these new models is the pulsed neural network with radial basis function, a network able to store information in the axonal propagation delay of neurons. Learning algorithms have been proposed to this model looking for mapping input pulses into output pulses. Recently, a new method was proposed to encode constant data into a temporal sequence of spikes, stimulating deeper studies in order to establish abilities and frontiers of this new approach. However, a well known problem of this kind of network is the high number of free parameters - more that 15 - to be properly configured or tuned in order to allow network convergence. This work presents for the first time a new learning function for this network training that allow the automatic configuration of one of the key network parameters: the synaptic weight decreasing factor.

Pensamento teórico e formação docente: apropriação de saberes da tradição lúdica na perspectiva da teoria da formação das ações mentais por etapas de P. Ya. Galperin

The study investigated the possibility of organizing a didactics unit for formation of hability of identifying and explaining the popular traditional games in the process of licensed formation in physical education. Had basic premised, the thesis formulated by Piorte Yakovleviche Galperin that the fundamental condition that mode determines the student s way of thinking and the theoretical structures thought. Is given by the method of organization activity that form the basis of guiding skills assimilates from this assumption the study defended the thesis that the contents of popular traditional games can be organizeds according the systemic functional-structural focus. As a method to plan a didactics unit that contributes to development of theoretical thought and the professional development of graduates in physical education. In this sense the general goal was studied and develop a training proposal of ability to identify and explain the popular traditional games for physical education teachers oriented to contribute to the development of theoretical thought. In the construction process of the thesis in a first moment was determined the invariant conceptual of popular traditional games from the method of analysis of activity, after was organized the content of popular traditional games according to the structural-functional systems revealing the essential properties elements and levels of relationship.These procedures provided to the construction elements of the concept popular traditional games, and was the basis for planning a didactical unit to the formation of ability to study. These strategies enable to build a set of prepositions to argue, as a result of the increases in the knowledge of the professional formation in physical education. The study was introduced the fallowing contributions; formulated a teaching proposal to develop the ability to identify popular traditional games, as a cultural and historical contribution and the development of an individual, in initial formation of physical education teacher, attuned to the demands of training and use of knowledge that requires this level of education, defined and organized the knowledge of popular traditional games , this enables a teaching able to raise the cognitive abilities and the theoretical concept of personality of graduated in physical education

PENSAMENTO TEÓRICO E FORMAÇÃO DOCENTE: apropriação de saberes da tradição lúdica na perspectiva da teoria da formação das ações mentais por etapas de P. Ya. Galperin

The study investigated the possibility of organizing a didactics unit for formation of hability of identifying and explaining the popular traditional games in the process of licensed formation in physical education. Had basic premised, the thesis formulated by Piorte Yakovleviche Galperin that the fundamental condition that mode determines the student s way of thinking and the theoretical structures thought. Is given by the method of organization activity that form the basis of guiding skills assimilates from this assumption the study defended the thesis that the contents of popular traditional games can be organizeds according the systemic functional-structural focus. As a method to plan a didactics unit that contributes to development of theoretical thought and the professional development of graduates in physical education. In this sense the general goal was studied and develop a training proposal of ability to identify and explain the popular traditional games for physical education teachers oriented to contribute to the development of theoretical thought. In the construction process of the thesis in a first moment was determined the invariant conceptual of popular traditional games from the method of analysis of activity, after was organized the content of popular traditional games according to the structural-functional systems revealing the essential properties elements and levels of relationship.These procedures provided to the construction elements of the concept popular traditional games, and was the basis for planning a didactical unit to the formation of ability to study. These strategies enable to build a set of prepositions to argue, as a result of the increases in the knowledge of the professional formation in physical education. The study was introduced the fallowing contributions; formulated a teaching proposal to develop the ability to identify popular traditional games, as a cultural and historical contribution and the development of an individual, in initial formation of physical education teacher, attuned to the demands of training and use of knowledge that requires this level of education, defined and organized the knowledge of popular traditional games , this enables a teaching able to raise the cognitive abilities and the theoretical concept of personality of graduated in physical education

Pearl millet utilization in ccommercial laying hen diets formulated on a total or digestible amino acid basis

An experiment was carried out to evaluate the effect of replacing corn with pearl millet in commercial layer diets, formulated according to the minimal requirements for total and digestible amino acids. Two hundred and forty Lohmann LSL laying hens with 25 weeks of age were distributed in a completely randomized experimental design according to a 2 x 5 factorial arrangement with 3 replicates of 8 birds. Feed was formulated on two amino acid basis (total or digestible) according to Rostagno et al. (2000) and there were five pearl millet inclusion levels (0%, 25%, 50%, 75%, and 100%). Performance and egg quality were evaluated during five periods of 21 days.At the end of each period, feed intake, egg production, egg weight and feed conversion were evaluated. In the last three days of each period, the following egg quality parameters were evaluated: Haugh Unit, yolk pigmentation index, egg specific weight, shell percentage and shell thickness. Digestible amino acid requirements resulted in decreased feed intake (p<0.01) and increased production costs per mass of eggs (kg) or per dozen eggs (p<0.01) compared to total amino acid requirements. There was a linear reduction in feed intake, egg production, egg weight and yolk pigmentation index with increasing inclusion levels of pearl millet. Therefore, increasing levels of replacement of corn by pearl millet affected bird performance negatively. Besides, production costs were higher with increasing pearl millet levels.

Sunflower meal in commercial layer diets formulated on total and digestible amino acids basis

An experiment was conduced to evaluate the inclusion of sunflower meal (SBM) in commercial layer diets formulated on total or digestible amino acids basis. One hundred forty-four 41-week-old Lohmann LSL layers were distributed in a completely randomized experimental design in a 2 x 4 factorial arrangement with three replications of six birds each. Treatments consisted of a combination of four SBM inclusion levels SBM(0%, 4%, 8%, and 12%) and feed formulation according two amino acid recommendations (total or digestible). The experimental period was divided into five periods of fourteen days. Performance parameters (egg production, feed intake, feed conversion, egg mass) were evaluated for each period. In the last two days of each period, three eggs per replication were collected to evaluate egg quality (Haugh units, specific gravity, egg weight, eggshell thickness, and eggshell percentage). Hens fed on total amino acid recommendation presented the highest values for egg weight. Diets formulated on digestible amino acids basis showed an improvement in eggshell percentage and egg specific gravity. SBM addition in commercial layer diets did not influence performance; however, increasing SBM dietary levels SBM improved eggshell quality.

Prolapse-free relativistic Gaussian basis sets for the superheavy elements up to Uuo (Z=118) and Lr (Z=103)

Prolapse-free basis sets suitable for four-component relativistic quantum chemical calculations are presented for the superheavy elements UP to (118)Uuo ((104)Rf, (105)Db, (106)Sg, (107)Bh, (108)Hs, (109)Mt, (110)Ds, (111)Rg, (112)Uub, (113)Uut, (114)Uuq, (115)Uup, (116)Uuh, (117)Uus, (118)Uuo) and Lr-103. These basis sets were optimized by minimizing the absolute values of the energy difference between the Dirac-Fock-Roothaan total energy and the corresponding numerical value at a milli-Hartree order of magnitude, resulting in a good balance between cost and accuracy. Parameters for generating exponents and new numerical data for some superheavy elements are also presented. (c) 2007 Elsevier B.V. All rights reserved.

Performance of aerodynamic baffles in cylindrical grinding analyzed on the basis of air layer pressure and speed

Over the years, grinding has been considered one of the most important manufacturing processes. Grinding is a high precision process, and the loss of a single workpiece in this stage of the production is unacceptable, fir the value added to the material is very high due to many processes it has already undergone prior to grinding. This study aims to contribute toward the development of an experimental methodology whereby the pressure and speed of the air layer produced by the high rotation of the grinding wheel is evaluated with and without baffles, i.e., in an optimized grinding operation and in a traditional one. Tests were also carried out with steel samples to check the difference in grinding wheel wear with and without the use of baffles.