Problematiken med estimering i projekt inom agil systemutveckling : Analys och undersökning av agil systemutveckling hos SDC

In today’s society, IT-Companies often have a hard time estimating changed requirements. This leads to that the clients’ confidence is negatively affected and is one of the main reasons why this has to be improved. The goal with this study was to find out what the most common problems regarding this issue are in IT-companies that works with agile software development. By analyzing one IT-company through a SWOT- and pareto-analysis the most common problems have been ascertained. The SWOT analysis have been created through interviews with selected employees to get a better understanding of the problems that the IT-company is facing. Furthermore was the pareto-analysis based on a survey that was sent out to many different employees to prioritize the problems. The reason why the survey was sent to different employees was to get a more objective input. The study showed that there was many different problems that needed attention. The most important problems was that the communication towards the client regarding requirements needed to be improved, better communication internally between different departments needed to be established, a method to quickly adapt and estimate change in requirements needed to be implemented and finally a method regarding witch key employees whom need to attend the planning of the program backlog. These problems have then been studied through interviews with other IT-companies and through a literature study. The conclusions that where drawn was that the client needs to be involved and updated through the whole project. Constant monitoring and communication regarding changed requirements needs to be processed and mediated. High standards needs to be set early towards the client in order to obtain as clear an image of the requirements as possible. Many different parties need to attend to the planning process for the program backlog before the start of the project. The client needs to be aware of that changed requirements will arise and that this will lead to that the first estimation may not necessarily be absolute. As long as the client is held up to date as well as participant through the whole project and problems are detected and mediated early, change in requirements should not be a huge problem. This is after all the purpose of being agile.

Unsere Zeit vom universellen Standpunkte aus beleuchtet

durch Dr. Ig. Dominicus Buswald, Stift Admont

Värdering av kriterier vid stora investeringar : En jämförelse mellan olika intressenters uppskattningar av kriterier

In what way does different stakeholders assess a decision and its consequences, and how do these assessments differ? When a company stands before a big decision, they need to consider aspects that are economic, ecologic and social. To make a good decision they need to consider the society and its different stakeholder groups. This study examined how different groups values and weights different criteria. The study has been done with the project Sundsvall logistics park as a case, with criteria related to that project. The goal of the study was to find a way to value and weight different criteria and then compare how the company and the stakeholders assesses these criteria. This has been done through interviews with relevant people that has got extra knowledge about the project Sundsvall logistics park, and through a survey that has been sent out to residents of Sundsvall. The informants and respondents got to assess values and weights to the criteria relative to an indirect alternative where the logistics park isn’t built. The data was then compiled using multi attribute utility theory as a tool to present the comparison. The result of the study suggests that the differences between the valuations and weightings of the criteria is partly due to an uncertainty in how the logistics park would affect the criteria, but that the biggest reason probably depends on what perspective the person is viewing the logistics park from. If the person is viewing the logistics park from an industrial perspective, the criteria related to industrial development is getting more important and is going to take up more room in the analysis. If the person is viewing the logistics park from an individual and social perspective, the criteria related to that is more important and takes up more room in the analysis.

Lageroptimering med hjälp av multikriterieanalys : En fallstudie hos KUBALs centrallager

This thesis deals with control of stock in an inventory, focusing on inventory placement. The purpose of this thesis is to reduce the transport distance within the main stock house while gathering inventory. This will be achieved by reconstructing the inventory placement in consideration with how frequently the inventories get picked and mass of the inventory. In particular, the literature and the data that is collected from the company´s business system have laid the foundation for the thesis. In general, interviews and observations also contributed to the data collection. To fulfill the aim and to produce arbitrary results, two issues have been developed regarding which attributes that should determine the position of the inventory in the stock house and how to obtain a more effective inventory structure? The authors have jointly produced a result of suggestions for future inventory placement in terms of picking frequency and weight. Initially a situation analysis was conducted to identify known problems with the inventory´s placement and storage systems. The problems that were identified were that the inventory placement has no consideration regarding picking frequency. To determine the most frequent picked inventory an ABC analysis was conducted. All of the inventories were spread out throughout the whole stock house. To take in account, the additional criterion, which was weight, a multi-criteria analysis was performed in combination with the ABC analysis. The results of the combined analysis provided that the basis for drawing up concepts for future inventory placement. The proposal includes optimized inventory placements in different zones of the most frequently picked inventory with weight as an additional criterion.

A' Magyar Urfi oder die Kunst in 46 Stunden gut ungarisch lesen, verstehen, sprechen und schreiben zu lernen : nebst einer Sammlung von Hauptwörtern und deren Leidensendungen von Bei- und Zeitwörtern zur Übung des Gedächtnisses : ferner: Gesprächen, Fabeln, u.s.w.

von J.T. Schuster

Inputs from a mercury-contaminated lagoon: impact on the nearshore waters of the Atlantic Ocean

Ria de Aveiro, a Portuguese coastal lagoon that exchanges water with the Atlantic Ocean, received the effluent from a chlor-alkali industry for over 50 years; consequently several tons of mercury had been buried in the sediments of an inner basin. To assess the importance (and seasonal variation) of the lagoon waters as carriers of mercury to the nearby coastal area, we measured total mercury levels in several compartments: in surface sediments, in surface and deep waters (including dissolved and particulate matter!, and in biota. Dissolved (reactive and total) mercury concentrations both in surface and deep waters were low (<1 to 15 ng L '). Mean mercury values in suspended particulate matter varied hetween 0.2 and 0.6 jxg g ' and in sediments between 1 and 9 ng g '. Aquatic organisms displayed levels below regulatory limits but exhibited some bioaccumulation of mercury, with concentrations ranging from 0.05 to 0.8 ^ig g ' Idry weight (dw)|. No seasonal pattern was found in this study for mercury-related determinations. Levels found in the estuary mouth during ebb tide provide evidence for the transport of mercury to the coastal zone. No significant changes in the partition of mercury between dissolved and particulate phases were found in the coastal waters in comparison with the values found in the estuary mouth. In spite of the high levels of mercury found inside some areas of the lagoon, the wide web of islands and channels allows some spreading of contaminants before they reach the coastal waters. Moreover, the low efficiency of local marine sediments in trapping mercury contributes to a dilution of mercury transported in suspended particulate matter over a broader area, reducing the impact in the nearby manne coastal zone.

Dual stimulation of antigen presenting cells using carbon nanotube-based vaccine delivery system for cancer immunotherapy

Although anti−cancer immuno−based combinatorial therapeutic approaches have shown promising results, efficient tumour eradication demands further intensification of anti−tumour immune response. With the emerging field of nanovaccinology, multi−walled carbon nanotubes (MWNTs) have manifested prominent potentials as tumour antigen nanocarriers. Nevertheless, the utilization of MWNTs in co−delivering antigen along with different types of immunoadjuvants to antigen presenting cells (APCs) has not been investigated yet. We hypothesized that harnessing MWNT for concurrent delivery of cytosine−phosphate−guanine oligodeoxynucleotide (CpG) and anti-CD40 Ig (αCD40), as immunoadjuvants, along with the model antigen ovalbumin (OVA) could potentiate immune response induced against OVA−expressing tumour cells. We initially investigated the effective method to co−deliver OVA and CpG using MWNT to the APC. Covalent conjugation of OVA and CpG prior to loading onto MWNTs markedly augmented the CpG−mediated adjuvanticity, as demonstrated by the significantly increased OVA−specific T cell responses in vitro and in C57BL/6 mice. αCD40 was then included as a second immunoadjuvant to further intensify the immune response. Immune response elicited in vitro and in vivo by OVA, CpG and αCD40 was significantly potentiated by their co−incorporation onto the MWNTs. Furthermore, MWNT remarkably improved the ability of co−loaded OVA, CpG and αCD40 in inhibiting the growth of OVA−expressing B16F10 melanoma cells in subcutaneous or lung pseudo−metastatic tumour models. Therefore, this study suggests that the utilization of MWNTs for the co−delivery of tumour−derived antigen, CpG and αCD40 could be a competent approach for efficient tumours eradication.

Les plasmocytes et leur niche: Étude de la génération de plasmocytes humains in vitro

Chez l’humain, les lymphocytes B mémoires IgG+ et IgA+ sont des cellules clés de l’immunité humorale. Ces cellules mémoires sont maintenues à long-terme dans notre organisme. Elles représentent une défense rapide et efficace contre toutes les infections que nous avons déjà vaincues pendant notre vie. Ces cellules mémoires qui rencontrent à nouveau leur antigène se différencient rapidement en plasmocytes à courte vie, et permettent la sécrétion massive d’immunoglobuline (Ig). La contrepartie mémoire de ces cellules sont les plasmocytes à longue vie qui sont présents dans les niches de la moelle osseuse et y sécrètent en permanence des anticorps protecteurs qui circulent dans le sang. Ces cellules sécrétrices peuvent avoir une durée de vie allant de dizaines d’années à la vie entière de l’individu. Les patients qui reçoivent des traitements de chimiothérapie ou de radiothérapie sont privés de ces cellules mémoires détruites par ces traitements au même titre que les cellules cancéreuses. Ces patients deviennent vulnérables aux infections et leur survie dépend de la régénération rapide de leur système hématopoïétique. Notre équipe a déjà mis au point une méthode pour préparer de grandes quantités des cellules mémoires capables de sécréter des IgG et des IgA. Les présents travaux visent à générer des plasmocytes fonctionnels et capables de survivre à long terme in vitro. La stratégie expérimentale visait à établir des conditions permettant de se rapprocher de l’environnement de la moelle osseuse. Dans un premier temps, nous avons étudié les paramètres permettant la différenciation des lymphocytes B mémoires en plasmocytes. Étant donné l’importance du potentiel redox dans l’environnement de la moelle osseuse, nous avons d’abord tenté d’en contrôler l’impact avec un antioxydant, le N-acétyle cystéine (NAC). Nos résultats ont démontré que le NAC avait un effet significatif et diminuait la phosphorylation de la protéine STAT3 en raison d’une inhibition des kinases JAK2 et JAK3. Étonnamment, cet antioxydant retardait la différenciation de nos lymphocytes B qui étaient stimulés avec une forte interaction CD40-CD154. Par la suite, la comparaison des interactions CD40-CD154 et CD27-CD70 a permis de conclure qu’il était essentiel de réduire à son minimum l’interaction CD40-CD154 et qu’il fallait ajouter les cytokines IL-6 et IL-10. Les cellules CD31+CD38+CD138+ générées présentaient un phénotype similaire à celui des plasmocytes de la moelle osseuse. Malheureusement la fréquence de ces cellules était faible et leur viabilité insuffisante. Afin d’augmenter la survie de ces cellules le dernier volet de nos travaux visait à se rapprocher des niches de la moelle osseuse. Notre but a été atteint en ajoutant des cellules mésenchymateuses issues de la moelle osseuse en présence de 8% de dioxygène (O2). Les cellules CD31+CD38+CD138+ générées ont une excellente viabilité et représentent plus de 50% des cellules totales en culture. De plus, le modèle de culture est maintenant établi dans un milieu exempt de sérum et de protéines animales. Dans l’ensemble, nos résultats permettent de proposer la production ex vivo de plasmocytes autologues avec une perspective thérapeutique pour réduire les risques d’infections des patients devenues immunodéficients, suite à un traitement de radiothérapie ou de chimiothérapie.

Gestão da Informação e Gestão do Conhecimento: análise das publicações do grupo de trabalho 4 no Encontro Nacional de Pesquisa em Ciência da Informação 2005-2014

Este estudo se baseia em duas áreas afins, a área da Gestão da Informação (GI) que busca gerir a informação registrada e a Gestão do Conhecimento (GC) que procura formas de gerir o capital intelectual dos indivíduos. Na busca por compreender sobre as duas áreas do conhecimento, procurou-se analisar os trabalhos presentes no Grupo de Trabalho 4 do Encontro Nacional de Pesquisa em Pós-Graduação em Ciência da Informação (ENANCIB). Devido a este fato, o presente trabalho tem por objetivo principal investigar como a Gestão da Informação e Gestão do Conhecimento são abordadas nos trabalhos apresentados no ENANCIB, tendo por objetivos específicos identificar os trabalhos sobre GI e GC do GT4, a análise de autoria e co-autoria presente nos mesmo, realizar a averiguação das palavras-chave utilizadas, e a investigação de aspectos de abordagem da GI e GC. Para a consecução dos objetivos foi utilizado o método exploratório-descritivo, pois foi realizada a descrições dos contextos dos trabalhos para descobrir as relações existentes entre seus componentes. Como resultado, conclui-se que embora a GI e a GC sejam abordadas em muitos trabalhos, há muitos trabalhos no qual não se é possível ter uma identificação sobre a abordagem de ambas as áreas. Quanto à autoria dos trabalhos, Marta L. P. Valentim é a autora com maior número de apresentações por evento, no que tange a co-autoria há a predominância de dois autores por trabalho. No que se relaciona as palavras-chave encontradas nos trabalhos, observou que a palavra mais comum é GI. E os aspectos em que GI e GC são abordadas são variados, salientando a sua forte presença em organizações.

Effects of supplemental osteopontin on intestinal development and serum antibody responses to rotavirus vaccination in piglets

Milk contains numerous bioactive substances including immunoglobulins, cytokines, growth factors and components that exert antibiotic and prebiotic activity (Field, 2005). Little is known about the biological effects of individual milk bioactives, despite the fact that natural milk improves intestinal development and immune system functions in neonates (Donovan et al., 1994; Field, 2005) relative to milk formula. Characterization of the biological effects of such components is important for optimal production of infant milk formulas to be used when mother’s milk is not available. Milk components with preliminary evidence of positive effects on the intestinal growth and mucosal immunity include osteopontin (OPN). Osteopontin is a phosphorylated acidic glycoprotein expressed by a number of different immune and non-immune cells and tissues (Sodek et al., 2000). It is also present in body fluids including blood, bile and milk (Sodek et al., 2000). Osteopontin is a multifunctional protein that is implicated in a wide number of biological processes including cell survival, bone remodeling, and immune modulatory functions (Sodek et al., 2000). Furthermore, Schack and colleagues (2009) demonstrated that the concentration of OPN in human milk is considerably higher than in bovine milk and infant formulas. Taken together, it is likely that OPN plays a role in the early development of gastrointestinal tract and mucosal immune responses in infants. Since the neonatal pig shares anatomical, physiological, immunological, and metabolic similarities with the human infants (Moughan, et al., 1992), they were selected as the animal model in our studies. Our first aim was to investigate the effects of OPN on piglet intestinal development. Newborn, colostrum-deprived piglets (n=27) were randomized to receive three treatments: formula with bovine OPN (OPN; 140 mg/L); formula alone (FF); or sow reared (SR) for 21 days. Body weight, intestinal weight and length, mucosal protein and DNA content, disaccharidase activity, villus morphology, and crypt cell proliferation were measured. Statistical significance was assigned at P<0.05. No significant effects of OPN were observed for body weight, intestinal weight and length. Mucosal protein content of SR piglets was lower than FF and OPN piglets in the duodenum, but higher than FF and OPN piglets in the ileum. No significant effects of diet in mucosal DNA content were detected for the three regions of the small intestine. Lactase and sucrase activities of SR piglets were higher than the two formula-fed groups in the duodenum, lower in the ileum. No significant effects of diet on lactase and sucrase activities were noted between two formula-fed groups in the duodenum and ileum. Jejunal lactase activity of FF piglets was higher than SR piglets, whereas no significant effect of diet was observed in jejunal sucrase activity among the three groups. Duodenal and ileal villus height and villus area of SR piglets were lower than two formula-fed groups, while OPN piglets did not differ from FF piglets. There was a significant effect of diet (P<0.0001) on jejunal crypt cell proliferation, with proliferation in OPN piglets being intermediate between that of FF and SR. In summary, supplemental OPN increased jejunal crypt cell proliferation, independent of evident morphological growth, and had a minor impact on disaccharidase activity in the small intestine of neonatal piglets. Rotavirus (RV) is the most common viral cause of severe gastroenteritis in infants and young children worldwide (Parashar et al., 2006). Maeno et al. (2009) reported that OPN knockout (OPN-KO) suckling mice were more susceptible to RV infection compared to wild-type (WT) suckling mice. To detect the role of OPN in intestinal immune responses of neonates, the goal of the second study was to evaluate whether supplemental OPN influenced the serum antibody responses to RV vaccination in neonatal piglets. Newborn, colostrum-deprived piglets were randomized into two dietary groups: formula with bovine OPN (OPN; 140 mg/L) and formula alone (FF) for 35 days. On d7, piglets in each dietary group were further randomized to receive rotavirus (RV) vaccination (Rotarix®) (FF+RV and OPN+RV) or remained non-vaccinated (FF+NV and OPN+NV). Booster vaccination was provided on d14. Blood samples were collected on d7, 14, 21, 28 and 35. RV-specific serum immunoglobulin (Ig) G, IgA, IgM and total serum IgG, IgA, IgM were measured by ELISA. Statistical significance was assigned at P<0.05, with trends reported as P<0.10. Body weight gain was unaffected by diet and/or vaccination. No significant effect of oral OPN supplementation was observed for RV-specific antibody responses and total Igs levels. After the combination of dietary groups, RV piglets had significantly higher RV-specific IgM concentrations compared to NV piglets. Although there were higher means of RV-specific IgG and RV-specific IgA concentrations in RV group than their counterparts in NV group, the difference did not reach statistical significance. RV-specific IgM reached a peak at d7 post booster vaccination (PBV), whereas the RV-specific IgG and IgA peaked later at PBV 14 or 21. Total Igs were unaffected by RV vaccination but were significantly increased over time, following similar pattern as RV-specific Igs. In summary, neonatal piglets generated weak antibody responses to RV vaccination. Supplemental OPN did not enhance RV-specific serum antibody responses and total serum Igs levels in neonatal piglets with or without RV vaccination. In conclusion, we observed normal developmental changes in the small intestine and serum Igs levels in neonatal piglets over time. Oral OPN supplementation showed minimal impacts on intestinal development and no effect on serum Igs levels. The role of supplemental OPN on the growth and development of infants is still inconclusive. Future studies should measure other physiological and immunological parameters by using different models of vaccination or infection.

Medizinischer und gesundheitsökonomischer Nutzen der Untersuchung auf Helicobacter pylori-Besiedlung mittels 13C-Harnstoff-Atemtest in der Primärdiagnostik im Vergleich zu invasiven und nichtinvasiven diagnostischen Verfahren

Hintergrund: Helicobacter pylori (H. pylori) zählt trotz abnehmender Inzidenz zu den häufigsten bakteriellen Infektionskrankheiten des Menschen. Die Infektion mit H. pylori ist ein Risikofaktor für Krankheiten wie gastroduodenale Geschwüre, Magenkarzinomen und MALT (Mucosa Associated Lymphoid Tissue)-Lymphomen. Zur Diagnostik von H. pylori stehen verschiedene invasive und nichtinvasive Verfahren zur Verfügung. Der 13C-Harnstoff-Atemtest wird zur Kontrolle einer Eradikationstherapie empfohlen, kommt in der Primärdiagnostik von H. pylori derzeit jedoch nicht standardmäßig in Deutschland zum Einsatz. Fragestellung: Welchen medizinischen und gesundheitsökonomischen Nutzen hat die Untersuchung auf H. pylori-Besiedlung mittels 13C-Harnstoff-Atemtest in der Primärdiagnostik im Vergleich zu invasiven und nichtinvasiven diagnostischen Verfahren? Methodik: Basierend auf einer systematischen Literaturrecherche in Verbindung mit einer Handsuche werden Studien zur Testgüte und Kosten-Effektivität des 13C-Harnstoff-Atemtests im Vergleich zu anderen diagnostischen Verfahren zum primären Nachweis von H. pylori identifiziert. Es werden nur medizinische Studien eingeschlossen, die den 13C-Harnstoff-Atemtest direkt mit anderen H. pylori-Testverfahren vergleichen. Goldstandard ist eines oder eine Kombination der biopsiebasierten Testverfahren. Für die gesundheitsökonomische Beurteilung werden nur vollständige gesundheitsökonomische Evaluationsstudien einbezogen, bei denen die Kosten-Effektivität des 13C Harnstoff-Atemtests direkt mit anderen H. pylori-Testverfahren verglichen wird. Ergebnisse: Es werden 30 medizinische Studien für den vorliegenden Bericht eingeschlossen. Im Vergleich zum Immunglobulin G (IgG)-Test ist die Sensitivität des 13C-Harnstoff-Atemtests zwölfmal höher, sechsmal niedriger und einmal gleich, und die Spezifität 13-mal höher, dreimal niedriger und zweimal gleich. Im Vergleich zum Stuhl-Antigen-Test ist die Sensitivität des 13C-Harnstoff-Atemtests neunmal höher, dreimal niedriger und einmal gleich, und die Spezifität neunmal höher, zweimal niedriger und zweimal gleich. Im Vergleich zum Urease-Schnelltest sind die Sensitivität des 13C-Harnstoff-Atemtests viermal höher, dreimal niedriger und viermal gleich und die Spezifität fünfmal höher, fünfmal niedriger und einmal gleich. Im Vergleich mit der Histologie ist die Sensitivität des 13C-Harnstoff-Atemtests einmal höher und zweimal niedriger und die Spezifität zweimal höher und einmal niedriger. In je einem Vergleich zeigt sich kein Unterschied zwischen 13C-Harnstoff-Atemtest und 14C-Harnstoff-Atemtest, sowie eine niedrigere Sensitivität und höhere Spezifität im Vergleich zur Polymerase-Kettenreaktion (PCR). Inwieweit die beschriebenen Unterschiede statistisch signifikant sind, wird in sechs der 30 Studien angegeben. Es werden neun gesundheitsökonomische Evaluationen in dem vorliegenden Bericht berücksichtigt. Die Test-and-Treat-Strategie mittels 13C-Harnstoff-Atemtest wird in sechs Studien mit einem Test-and-Treat-Verfahren auf Basis der Serologie sowie in drei Studien mit einem Test-and-Treat-Verfahren auf Basis des Stuhl-Antigen-Tests verglichen. Dabei ist das Atemtestverfahren dreimal kosteneffektiv gegenüber der serologischen Methode und wird von der Stuhl-Antigen-Test-Strategie einmal dominiert. Vier Studien beinhalten einen Vergleich der Test-and -Treat-Strategie auf Basis des 13C-Harnstoff-Atemtests mit einer empirischen antisekretorischen Therapie, wobei sich das Atemtesverfahren zweimal als kosteneffektive Prozedur erweist und zwei Studien einen Vergleich mit einer empirischen Eradikationstherapie. In fünf Studien wird das Test-and-Treat-Verfahren mittels 13C-Harnstoff-Atemtest einer endoskopiebasierten Strategie gegenübergestellt. Zweimal dominiert die Atemteststrategie die endoskopische Prozedur und einmal wird sie von dieser Strategie dominiert. Diskussion:Sowohl die medizinischen als auch die ökonomischen Studien weisen mehr oder minder gravierende Mängel auf und liefern heterogene Ergebnisse. So werden in der Mehrzahl der medizinischen Studien keine Angaben zur statistischen Signifikanz der berichteten Unterschiede zwischen den jeweiligen Testverfahren gemacht. Im direkten Vergleich weist der 13C-Harnstoff-Atemtest überwiegend eine höhere Testgüte als der IgG und der Stuhl-Antigen-Test auf. Aus den Vergleichen mit dem Urease-Schnelltest lassen sich keine Tendenzen bezüglich der Sensitivität ableiten, wohingegen die Spezifität des 13C-Harnstoff-Atemtests höher einzuschätzen ist. Für die Vergleiche des 13C-Harnstoff-Atemtest mit der Histologie, dem 14C-Harnstoff-Atemtest und der PCR liegen zu wenige Ergebnisse vor. In der eingeschlossenen ökonomischen Literatur deuten einige Studienergebnisse auf eine Kosten-Effektivität der Test-and-Treat-Strategie mittels 13C-Harnstoff-Atemtest gegenüber dem Test-and-Treat-Verfahren auf Basis der Serologie und der empirischen antiskretorischen Therapie hin. Um Tendenzen bezüglich der Kosten-Effektivität der Atemteststrategie gegenüber der Test-and-Treat-Strategie mittels Stuhl-Antigen-Test sowie der empirischen Eradikationstherapie abzuleiten, mangelt es an validen Ergebnissen bzw. ökonomischer Evidenz. Die Untersuchungsresultate hinsichtlich eines Vergleichs mit endoskopiebasierten Verfahren fallen diesbezüglich zu heterogen aus. Insgesamt kann keines der ökonomischen Modelle der Komplexität des Managements von Patienten mit dyspeptischen Beschwerden gänzlich gerecht werden. Schlussfolgerungen/Empfehlungen: Zusammenfassend ist festzuhalten, dass die Studienlage zur medizinischen und ökonomischen Beurteilung des 13C-Harnstoff-Atemtests im Vergleich zu anderen diagnostischen Methoden nicht ausreichend ist, um den Atemtest als primärdiagnostisches Standardverfahren im Rahmen einer Test-and-Treat-Strategie beim Management von Patienten mit dyspeptischen Beschwerden für die deutsche Versorgungslandschaft insbesondere vor dem Hintergrund der Leitlinien der Deutschen Gesellschaft für Verdauungs- und Stoffwechselkrankheiten (DGVS) anstelle einer endoskopiebasierten Methode zu empfehlen.

Perfil epidemiológico de miositis aguda benigna por dengue en pacientes de 5 a 18 años evaluados en la unidad de emergencia del Hospital Nacional de Niños Benjamin Bloom en el período de Enero 2012 a Diciembre 2013

El dengue es una infección viral autolimitada transmitida en humanos por mosquitos, siendo una enfermedad infecciosa sistémica y dinámica. Enfermedad compleja en sus manifestaciones donde la mayoría son asintomáticas o cursar de una manera leve a grave e incluso mortal. Siendo la miositis una forma de presentación no frecuente en la enfermedad que evoluciona con la elevación de la creatinfosfoquinasa. El involucramiento muscular tiene diferentes grados de intensidad según el tipo de fibra muscular y el grupo de músculos comprometidos. Sin embargo la miositis observada en el curso del dengue tiene una evolución benigna y no requiere tratamiento y tiene una corta duración. Objetivo: Describir la epidemiología de la miositis aguda benigna por dengue en pacientes de 5 a 18 años de edad evaluados en la Unidad de Emergencia del Hospital Nacional de Niños Benjamín Bloom en un período comprendido de Enero 2012 a Diciembre 2013. Método: Se llevó a cabo un estudio descriptivo, retrospectivo, observacional y transversal, de pacientes de 5 a 18 años de edad diagnosticados clínica y serológicamente con fiebre por dengue en la Unidad de Emergencia en el Hospital Nacional de Niños Benjamín Bloom en el periodo comprendido entre Enero del 2012 a Diciembre del 2013. Se realizó revisión de expedientes clínicos buscando las características epidemiológicas, clínicas, sociodemográficas de los pacientes y a quienes se les realizaron las mediciones de los niveles séricos de CPK en dos tomas con diferente intervalo. El total de pacientes a quienes se les realizó dicho seguimiento fueron un total de 200 pacientes, siendo la muestra a estudiar. Resultados: La elevación de los niveles séricos de Creatininfosfoquinasa por encima de su valor esperado se observa con mayor frecuencia después de 3 días del inicio de los síntomas de la enfermedad con un total de 60 pacientes (30.2%): cuyos rangos de elevación oscilaron entre 141 a 500 mg/dl. Sin embargo cabe mencionar una menor frecuencia de 40 pacientes (20.1%) que elevaron dicha enzima antes de las 72 horas manteniendo el mismo intervalo de elevación. Con una menor proporción se encuentra los pacientes que incrementaron dicha enzima entre 501 a 1000 mg/dl y mayor de 1000 mg/dl Si hacemos una comparación con los pacientes que no elevaron CPK en ninguna de las muestras realizadas podemos observar que a pesar de ser la mayoría con un valor porcentual entre el 64.8% - 77.9% , existe una proporción considerable de pacientes que si elevaron dicho valor serológico con un porcentaje entre el 22.1% - 35.2%, constituyendo un dato importante para el diagnostico de Miositis Aguda Benigna en los pacientes que dieron Ig M positivo para Fiebre por Dengue.

Iraupen luzeko irakasleriaren garapenaren inpaktu-mailak: kontzepzioetan, hezkuntza hurbilketan eta kultura instituzionalean

[EUS]Unibertsitateko irakasleriaren garapenaren(IG) kontzeptu konprentsibotik abiatuta, doktorego tesi honek iraupen luzeko IG programen inpaktua du aztergai, bai maila indibidualean (kontzepzio eta hurbilketan) eta baita maila organizazional zein instituzionalean ere. Azterketa hau burutzeko metodologia aktiboen (arazoetan, proiektuetan eta kasuetan oinarritutako ikaskuntza) ERAGIN programaren lehendabiziko promozioa hartuko da kasu gisa. Iraupen luzeko estrategiaren (350 ordu) bidez eta ko-mentoria taldeen funtzionamenduan oinarrituz, ikerlan enpirikoak IG-ak irakasleriaren ikas-irakaskuntza kontzepzioetan eta hurbilketan izandako inpaktuaz ageriko ebidentziak ematen ditu, baina baita ikas-irakaskuntzaren inguruan ikertzeko (scholarship of teaching and learning) eta irakaskuntza eremuetan liderra izateko gaitasunaz ere. Honako alderdiok aldaketa organizazionalean murgiltzen gaituzte eta curriculum hibridoaren pausokako gauzapenaren alde lan egiten dute.

Formação e desenvolvimento da bexiga gasosa em larvas de dourada (Sparus aurata Linnaeus 1758)

Tese de dout., Unidade de Ciências e Tecnologias dos Recursos Aquáticos, Univ. do Algarve, 1995

Estudo do recuo das arribas a leste de Quarteira (Algarve-Portugal) por restituiçäo fotogramétrica

Dissertação de mest. em Estudos Marinhos e Costeiros Ramo Gestão Costeira, Unidade de Ciências e Tecnologias dos Recursos Aquáticos, Univ. do Algarve, 1996