Everyday life can be complex when next of kin of haemodialysis patients are preoccupied with taking care of the patient and his/her health, which implies the difficulties and requirements needed. The general aim of this thesis was to explore and describe everyday life among next of kin of haemodialysis patients with focus on the life situation, health, time and professional support. Two perspectives of the thesis was applied: a holistic perspective on the everyday life of next of haemodialysis patient and a social perspective with focus on human communication and understanding of next of kin’s experience of everyday life. A qualitative descriptive and explorative design, comprising a phenomenographic and content analysis was used in Studies I-IV. The data collected in the studies consisted of interviews with next of kin to haemodialysis patient and analysis of professional support for next of kin to chronic haemodialysis patients in nursing documentation from two hospitals in Sweden. The experience of time in everyday life among next of kin of haemodialysis patients demonstrated that time for them is minimised and life space contracted. Next of kin experienced ambivalence towards their own health, especially in cases of patients’ spouses When next of kin of haemodialysis patient’s became involved in the patients’ care, they experienced arduousness in relation to their own health as well as less uninterrupted time for themselves in everyday life, and their life situation was characterised by confinement and social isolation. They were aware of the prognosis of renal disease and the fact that haemodialysis is a life-sustaining treatment, which forced them to live for the moment. The everyday life among the next of kin changed when the family became involved in the care, which in turn lead to a changed life situation and restrictions in everyday life. Lack of knowledge in nursing documentation of professional support revealed necessity of the readiness of next of kin. It is therefore important to be familiar with this in the nursing process, especially when the patient and their next of kin need support and attention in everyday life. Original papers not included. / <p>Linköping University Medical Dissertation, 926, I. Ziegert K. &amp; Fridlund B. Conceptions of life situation among next of kin of haemodialysis patients. Journal of Nursing Management 2001; (9) 231-239. doi:10.1046/j.1365-2834.2001.00233.x, II. Ziegert K., Fridlund B. &amp; Lidell E. Health in everyday life among spouses of patients on haemodialysis; a content analysis. Scandinavian Journal of Caring Sciences, Volume 20, Number 2, June 2006, pp. 223-228(6). DOI: 10.1111/j.1471-6712.2006.00400.x, III. Ziegert K., Fridlund B. &amp; Lidell E. Time in everyday life as experienced by next of kin of haemodialysis patients (Submitted for publication)., IV. Ziegert K., Fridlund B. &amp; Lidell E. Professional support for next of kin of patients receiving chronic haemodialysis treatment. A content analysis study of nursing documentation. Journal of Clinical Nursing, Volume 16, Number 2, February 2007, pp. 353-361(9). DOI: 10.1111/j.1365-2702.2006.01597.x,</p>

The use of coercion in psychiatry involves clinical, legal, scientific, ethical and emotional considerations. This thesis represents an attempt to further increase our understanding of some empirical aspects of this phenomenon. Interviews with 202 involuntarily admitted psychiatric patients and 201 voluntarily admitted patients and 295 of their next of kins were performed and analysed together with data from records and assessments made by professionals. Data was collected during two different periods of time with a compulsory psychiatric care law reform in between. Experience of at least one coercive measure was more common amongst patients who had been committed during the most recent legislation. Otherwise there were no differences in patient experiences during the different laws. Subjective short-term outcome was associated with having a contact person at the ward and being subjectively treated well. There were no relationships between subjective and assessed outcome or between legal status, perceived coercion at admission and subjective or assessed improvement. The changed legislation had no clear effect on the attitudes of patients and next of kins towards coercion. A majority of patients were able to accurately answer the question whether they had been restrained by belt or not during a specific treatment episode. Nineteen of 115 patients reported they had been restrained by belt. Eleven of these cases were true positive and 8 cases were false positive. In conclusion, the main results were first that when it comes to issues related to psychiatric coercion there are typically considerable differences between how these are perceived and interpreted by the professional and by the patient, and second that efforts made to change the face of psychiatric coercion in the minds of patients as well as the public on part of public policymakers have had limited effects.

Syftet med detta arbete är att försöka ta reda på vilka egenskaper som framtidens ledare kommer att behöva inom den kommunala sektorn, men också om det finns eventuella förutsättningar som måste förändras för framtidens ledare. Tio intervjuer genomfördes med personer på ledande positioner inom fyra kommuner i Mellansverige. Utifrån detta sammanställdes intervjumaterialet, och ur detta framkom tre övergripande huvudområden organisation, egenskaper och framtid som sen utmynnade i ett antal ledord. Mot dessa tolkades teorier i ett försök att koppla de till det framtida ledarskapet. Slutsatsen är att det inte finns bara en teori att förhålla sig till, utan det gäller att kunna hantera kontexten och förutsättningarna, och utifrån den kunna anpassa sig. Ett transformativt synsätt kring ledarskap kan vara ett sätt att lyckas i framtiden.

The overall aim of this thesis was to describe quality of care from different perspectives in the psychiatric setting, to develop an instrument for measuring quality of care from the in-patient perspective and to use this instrument empirically. A qualitative descriptive design involving a phenomenographic analysis was used in Studies I, III and IV, and a descriptive and comparative design with statistical analysis in Study II. In Study I, 20 patients were interviewed. The results showed that quality of care was perceived as a positive, normative concept namely as good quality of care. Five descriptive categories emerged: the patient’s Dignity is respected; the patient’s sense of Security with regard to care; the patient’s Participation in care; the patient’s Recovery; and the patient’s care Environment. In addition, two conceptions that had not explicitly emerged in previous studies on quality of care were identified: Being helped to reduce the shame and Being looked upon as like anyone else. In Study II a definition of quality of care from a patient perspective was formulated on the basis of the results in Study I. A two-part instrument the Quality in Psychiatric Care (QPC) was developed for measuring the patients’ expectations regarding quality of care (QPC-1) and their subsequent experience of it (QPC-2). One hundred and sixteen patients answered both parts of the instrument. Overall, the quality of care was rated high in both parts. However, experienced quality of care was significantly lower than the patient’s expectations in all the dimensions of the instrument: Total dimension, Dignity, Security, Participation, Recovery and Environment. Patients who perceived that the time of discharge was consistent with the stage of their illness experienced significantly higher Recovery; patients with good psychiatric health also experienced this, but had in addition significantly higher levels of Participation. This new instrument exhibited too high Cronbach’s alpha values (QPC-1 0.87–0.98, QPC-2 0.85–0.98), which means the instrument needs to be further tested in order to improve its psychometric properties. Twelve next of kin were interviewed in Study III. The next of kin described quality of care mainly from their own perspective, but also to a large extent from the patient’s perspective as well. They described it in both positive and negative terms. Five descriptive categories resulted: Dignity, Security, Participation, Recovery and Health-promoting surroundings. Good relations and communication between staff, patients and next of kin emerged as the central factors regarding the quality of care. The next of kin asked for information about mental illnesses and wanted to co-operate and participate in the patient’s care. They avoided telling others about their family member’s psychiatric illness because of a feeling of shame and guilt. In Study IV, 20 care staff and care associates were interviewed. They described quality of care both from the patient’s perspective and from a professional perspective. They perceived the concept as a positive one and as being of great importance for the patient’s health and life situation. Four descriptive categories resulted: the patient’s Dignity is respected; the patient’s Participation in the care; the patient’s Recovery; and the patient’s care Environment plays an important role. The main contribution of this thesis with regard to the concept of quality of care in the psychiatric setting is its emphasis on the significance of the different perspectives described above, as such knowledge is vital when planning and implementing and evaluating quality of psychiatric care. In addition, the descriptive categories that emerged in this thesis clearly highlight the importance of interpersonal relationships in the care situation. The new instrument (QPC) needs psychometric testing before it routinely can be used as a self-rating instrument for the purpose of improving psychiatric inpatient care and help guide the proper allocation of care resources.

Gene activity is regulated at two separate layers. Through structural and chemical properties of DNA – the primary layer of encoding – local signatures may enable, or disable, the binding of proteins or complexes of them with regulatory potential to the DNA. At a higher level – the structural layer of encoding – gene activity is regulated through the properties of higher order DNA structure, chromatin, and chromosome organization. Cells with abnormal chromosome compaction or organization, e.g. cancer cells, may thus have perturbed regulatory activities resulting in abnormal gene activity. Hence, there is a great need to decode the transcriptional regulation encoded in both layers to further our understanding of the factors that control activity and life of a cell and, ultimately, an organism. Modern genome-wide studies with those aims rely on data-intense experiments requiring sophisticated computational and statistical methods for data handling and analyses. This thesis describes recent advances of analyzing experimental data from quantitative biological studies to decipher the structural layer of encoding in human cells. Adopting an integrative approach when possible, combining multiple sources of data, allowed us to study the influences of chromatin (Papers I and II) and chromosomal aberrations (Paper IV) on transcription. Combining chromatin data with chromosomal aberration data allowed us to identify putative driver oncogenes and tumor-suppressor genes in cancer (Paper IV). Bayesian approaches enabling the incorporation of background information in the models and the adaptability of such models to data have been very useful. Their usages yielded accurate and narrow detection of chromosomal breakpoints in cancer (Papers III and IV) and reliable positioning of nucleosomes and their dynamics during transcriptional regulation at functionally relevant regulatory elements (Paper II). Using massively parallel sequencing data, we explored the chromatin landscapes of human cells (Papers I and II) and concluded that there is a preferential and evolutionary conserved positioning at internal exons nearly unaffected by the transcriptional level. We also observed a strong association between certain histone modifications and the inclusion or exclusion of an exon in the mature gene transcript, suggesting a functional role in splicing.

The use of advanced medical technology at home has increased in most industrialized countries. The overall aim of this thesis was to develop knowledge of self-care and transition and issues that influence daily life and health among persons using advanced medical technology at home. Three qualitative studies were performed to describe the structure of self-care (I) and elucidate meanings of health-illness transition experiences among persons using long-term oxygen, or a ventila-tor, or performing blood or peritoneal dialysis (II), and to gain a deeper understanding of the meaning of living with an adult family member in this context (III). Ten interviews with adult patients (I-II) and ten with adult next of kin (III) in this context were performed and analysed with descriptive phenome-nological (I), phenomenological hermeneutical (II) and hermeneutical (III) methods. A quantitative, descriptive, comparative, cross-sectional design was used to describe and find factors that influence self-care agency and perceived health in a larger group of persons (180 patients) using the enumerated types of advanced medical technology at home (IV). In the results, (I) self-care among persons using long-term oxygen, a ventilator, or equipment for blood or peritoneal dialysis at home was described at a generic level, independent of the specific type of technology used. The general description of self-care in this context involved prerequisites for, activities for and consequences of self-care; (II) the health-illness transition among adult persons in this context was interpreted as contentment at being part of the active and conscious process towards transcending into a new state of living, in which the individual and the technology were in tune. The successful and healthy transition experience was characterized by human growth and becoming; (III) living with a family member who is using advanced medical technology at home was interpreted as meaning rhythmical patterns of being closely connected to but also separated from him or her, and of sorrow versus reconciliation. Dependence on others was reflected in a need for support from the healthcare professionals and significant others; (IV) health-related and technology-related variables in daily life were rated as satisfactory to quite a high extent, but participants using long-term oxygen perceived their health as significantly lower compared to the other technology groups. Further, a significant difference in sense of coherence was found between users of long-term oxygen and peri-toneal dialysis. Factors that contributed to self-care agency and sense of coherence were found. In conclusion, self-care in a high-tech home context means more than simply mastering the technology. With the goal of maintaining an active, social life, the health-illness transition involves a learning process of accepting and integrating the technology into daily life. With knowledge and support, patients and next of kin are able to assume substantial responsibility for self-care/dependent-care. Daily life seems to be manageable for patients using this kind of technology at home.

ABSTRACT The purpose of this thesis has been to increase the knowledge about the life situation for next of kin who are caring for the elderly and mentally disabled. Also, the impact of “supportive actions” on the quality of life for the next of kin has been assessed. This study tried to answer the following questions:  How do next of kin perceive their every day life.  Do supportive actions lead to a better situation in your every day life.  Do supportive actions raise the quality of life for next of kin To answer the questions above a qualitative method was used. Individual interviews were chosen to get a deeper understanding of how the target group was experiencing their life situation. The participants in our study were six women, three were home nursing their husbands and the other three were caring for their parents. Through the interviews it was concluded that their life situation was trying and strenuous before the “supportive actions” begun. Stress, anxiety and confinement were common place. In the study it was identified that the “supportive actions” had a positive influence on the life situation and as a consequence the next of kin had a more manageable everyday life after the actions were implemented. The support created the necessary conditions for an increased quality of. / SAMMANFATTNING Syftet med denna c-uppsats var att få en ökad förståelse för anhörigas vardag som ger omsorg/vård till äldre och långtidssjuka samt om de stödinsatser som ges har någon betydelse för deras livskvalité. De frågeställningar som vi utgick ifrån var:  Hur uppfattar anhöriga sin vardag.  Leder stödinsatserna till en förbättrad livssituation.  Förbättrar stödinsatserna livskvaliteten hos anhöriga. Vi använde en kvalitativ metod för att besvara syftet och vi valde personliga intervjuer för att få en djupare förståelse hur informanterna upplevde sin livssituation. Deltagarna i vår studie var sex kvinnor, varav tre av dem var anhörigvårdare till sin make och de övriga var omsorgsgivare till sina föräldrar. Genom intervjuerna med de anhöriga har vi kommit fram till att i livssituationen innan de fick stödinsatserna, så upplevde anhörigvårdarna och omsorgsgivarna att situationen var påfrestande och ansträngd. Många upplevde att det skapades stress, oro och en bundenhet i vardagen. Vi kunde i vår studie se att stödinsatserna har påverkat livssituation i rätt riktning och att många i dag upplevde att deras vardag har blivit mer hanterbar och att stödet har förbättrad livskvalitén.

The purpose of this study is to examine a completely new phenomenon called the MIST, by two portfolios: the Goldman Sachs Next 11 equity fund, and the Goldman Sachs BRIC fund, in order to establish whether or not the MIST countries are a better investment decision in terms of risk, return and growth. Furthermore, the study examines in which form these emerging markets lies in terms of market efficiency, and if the random walk theory is present. The opportunities and challenges for Mexico, Indonesia, South Korea and Turkey are also brought upon to determine whether these countries have the potential to exhibit the same success as the BRIC countries did for a decade. Since the growth of the BRIC countries are slowing down, Jim O’Neill, the same founder of the term BRIC, coined the nations MIST. The BRIC countries are facing several difficulties and have led investors to draw out from these countries stocks. Investors that were pouring in money to the BRIC countries during the period 2001-2009, have from 2011, withdrawn 15 billion dollars from the BRIC stocks. Mexico, Indonesia, South Korea and Turkey. Derived from the next eleven countries, these countries have a major effect on the global economy due to their economical and political circumstances. For many investors, the MIST countries that are growing faster than the BRIC are regarded to be the new biggest emerging markets. Investing in BRIC funds are stated to be a disaster today, while on the other hand, the MIST countries are growing and outpacing the BRIC fund. The methodology used was to compare two different portfolios, Goldman Sachs N-11 equity fund in the period 2011-2013 against the Goldman Sachs BRIC fund in two different periods, 2011-2013 and 2006-2008 with S&amp;P 500 as the market index. In addition, a hypothesis test was carried out for this period to observe whether or not to reject the null hypothesis. The results of this study shows that the null hypothesis was rejected and that the N-11 equity fund is a better investment decision, in terms of risk, return and growth today. These emerging markets are under the weak form market efficiency and the random walk theory is present in the N-11 equity fund. This makes the authors’ results more of a speculation than a definite conclusion about the future, as one cannot "beat the market".

Die Strahlentherapie ist neben der Chemotherapie und einer operativen Entfernung die stärkste Waffe für die Bekämpfung bösartiger Tumore in der Krebsmedizin. Nach Herz-Kreislauf-Erkrankungen ist Krebs die zweithäufigste Todesursache in der westlichen Welt, wobei Prostatakrebs heutzutage die häufigste, männliche Krebserkrankung darstellt. Trotz technologischer Fortschritte der radiologischen Verfahren kann es noch viele Jahre nach einer Radiotherapie zu einem Rezidiv kommen, was zum Teil auf die hohe Resistenzfähigkeit einzelner, entarteter Zellen des lokal vorkommenden Tumors zurückgeführt werden kann. Obwohl die moderne Strahlenbiologie viele Aspekte der Resistenzmechanismen näher beleuchtet hat, bleiben Fragestellungen, speziell über das zeitliche Ansprechen eines Tumors auf ionisierende Strahlung, größtenteils unbeantwortet, da systemweite Untersuchungen nur begrenzt vorliegen. Als Zellmodelle wurden vier Prostata-Krebszelllinien (PC3, DuCaP, DU-145, RWPE-1) mit unterschiedlichen Strahlungsempfindlichkeiten kultiviert und auf ihre Überlebensfähigkeit nach ionisierender Bestrahlung durch einen Trypanblau- und MTT-Vitalitätstest geprüft. Die proliferative Kapazität wurde mit einem Koloniebildungstest bestimmt. Die PC3 Zelllinie, als Strahlungsresistente, und die DuCaP Zelllinie, als Strahlungssensitive, zeigten dabei die größten Differenzen bezüglich der Strahlungsempfindlichkeit. Auf Grundlage dieser Ergebnisse wurden die beiden Zelllinien ausgewählt, um anhand ihrer transkriptomweiten Genexpressionen, eine Identifizierung potentieller Marker für die Prognose der Effizienz einer Strahlentherapie zu ermöglichen. Weiterhin wurde mit der PC3 Zelllinie ein Zeitreihenexperiment durchgeführt, wobei zu 8 verschiedenen Zeitpunkten nach Bestrahlung mit 1 Gy die mRNA mittels einer Hochdurchsatz-Sequenzierung quantifiziert wurde, um das dynamisch zeitversetzte Genexpressionsverhalten auf Resistenzmechanismen untersuchen zu können. Durch das Setzen eines Fold Change Grenzwertes in Verbindung mit einem P-Wert < 0,01 konnten aus 10.966 aktiven Genen 730 signifikant differentiell exprimierte Gene bestimmt werden, von denen 305 stärker in der PC3 und 425 stärker in der DuCaP Zelllinie exprimiert werden. Innerhalb dieser 730 Gene sind viele stressassoziierte Gene wiederzufinden, wie bspw. die beiden Transmembranproteingene CA9 und CA12. Durch Berechnung eines Netzwerk-Scores konnten aus den GO- und KEGG-Datenbanken interessante Kategorien und Netzwerke abgeleitet werden, wobei insbesondere die GO-Kategorien Aldehyd-Dehydrogenase [NAD(P)+] Aktivität (GO:0004030) und der KEGG-Stoffwechselweg der O-Glykan Biosynthese (hsa00512) als relevante Netzwerke auffällig wurden. Durch eine weitere Interaktionsanalyse konnten zwei vielversprechende Netzwerke mit den Transkriptionsfaktoren JUN und FOS als zentrale Elemente identifiziert werden. Zum besseren Verständnis des dynamisch zeitversetzten Ansprechens der strahlungsresistenten PC3 Zelllinie auf ionisierende Strahlung, konnten anhand der 10.840 exprimierten Gene und ihrer Expressionsprofile über 8 Zeitpunkte interessante Einblicke erzielt werden. Während es innerhalb von 30 min (00:00 - 00:30) nach Bestrahlung zu einer schnellen Runterregulierung der globalen Genexpression kommt, folgen in den drei darauffolgenden Zeitabschnitten (00:30 - 01:03; 01:03 - 02:12; 02:12 - 04:38) spezifische Expressionserhöhungen, die eine Aktivierung schützender Netzwerke, wie die Hochregulierung der DNA-Reparatursysteme oder die Arretierung des Zellzyklus, auslösen. In den abschließenden drei Zeitbereichen (04:38 - 09:43; 09:43 - 20:25; 20:25 - 42:35) liegt wiederum eine Ausgewogenheit zwischen Induzierung und Supprimierung vor, wobei die absoluten Genexpressionsveränderungen ansteigen. Beim Vergleich der Genexpressionen kurz vor der Bestrahlung mit dem letzten Zeitpunkt (00:00 - 42:53) liegen mit 2.670 die meisten verändert exprimierten Gene vor, was einer massiven, systemweiten Genexpressionsänderung entspricht. Signalwege wie die ATM-Regulierung des Zellzyklus und der Apoptose, des NRF2-Signalwegs nach oxidativer Stresseinwirkung und die DNA-Reparaturmechanismen der homologen Rekombination, des nicht-homologen End Joinings, der MisMatch-, der Basen-Exzision- und der Strang-Exzision-Reparatur spielen bei der zellulären Antwort eine tragende Rolle. Äußerst interessant sind weiterhin die hohen Aktivitäten RNA-gesteuerter Ereignisse, insbesondere von small nucleolar RNAs und Pseudouridin-Prozessen. Demnach scheinen diese RNA-modifizierenden Netzwerke einen bisher unbekannten funktionalen und schützenden Einfluss auf das Zellüberleben nach ionisierender Bestrahlung zu haben. All diese schützenden Netzwerke mit ihren zeitspezifischen Interaktionen sind essentiell für das Zellüberleben nach Einwirkung von oxidativem Stress und zeigen ein komplexes aber im Einklang befindliches Zusammenspiel vieler Einzelkomponenten zu einem systemweit ablaufenden Programm. / The use of radiotherapy in addition to chemotherapy and surgical removal is the most powerful instrument in the fight against malignant tumors in cancer medicine. After cardiovascular diseases, cancer is the second leading cause of death in the western world, in which prostate cancer is the most frequent male cancer. Despite continuous technological improvements in radiological instruments and prognosis, it may occur a recurrence up to many years after radiotherapy due to a high resistance capability of individual malignant cells of the locally occurring tumor. Although modern radiation biology has studied many aspects of the resistance mechanisms, questions are largely unanswered especially in regards to prognostic terms and time response of tumor cells to ionizing radiation. As cellular models four prostate cancer cell lines with different radiation sensitivities (PC3, DuCaP, DU-145, RWPE-1) were cultured and tested for their ability to survive after exposure to ionizing radiation by a trypane blue and MTT viability assay. The proliferative capacity of the four cell lines was determined using a colony formation assay. The PC3 cell line (radiation-resistant) and the DuCaP cell line (radiation-sensitive) showed the maximal differences in terms of radiation sensitivity. Based on these results the two cell lines were selected to allow identification of potential prognostic marker for predicting the effectiveness of radiation therapy via their transcriptome-wide gene expression. Furthermore, a time series experiment with the radiation-resistant PC3 cell line was performed. At 8 different time points, during the period from 00:00 - 42:53 (hh:mm) after exposure with 1 Gy, the mRNA was quantified by next generation sequencing to investigate the dynamic behavior of time-delayed gene expression and to discover resistance mechanisms. Of 10,966 expressed genes 730 were significant differentially expressed, determined by setting a fold change threshold in conjunction with a P-value < 0.01. Of those 305 were more strongly expressed in PC3 cell line and 425 were more strongly expressed in the DuCaP cell line. Within these 730 genes many known stress-associated genes could be found, such as the two trans-membrane protein genes CA9 and CA12, which are associated with increased radiation resistance. By calculating a network score interesting networks were derived by the GO and KEGG databases. In particular the GO categories aldehyde dehydrogenase [NAD(P)+] activity (GO:0004030) as well as the KEGG pathway of O-glycan biosynthesis (hsa00512) seems to be remarkably relevant. An interaction analysis revealed two promising networks with the transcription factors JUN and FOS as central elements. High expression of the JUN network would be stand as indicator for radiation resistance whereas a high expression of the FOS network is equated with radiation sensitivity. Interesting insights could be achieved by analyzing the 10,840 expressed genes of the PC3 cell line and its expression profile over the 8 time points. Shortly after irradiation (00:00 - 00:30) a transcriptome-wide down-regulation occurred, within the next three, short time periods (00:30 - 01:03; 01:03 - 02:12; 02:12 - 04:38) a predominant increase of gene expression and the activation of protective networks followed, such as the up-regulation of DNA repair systems or the arresting of cell cycle. In the ensuing three time periods (4:38 - 09:43; 09:43 - 20:25; 20:25 - 42:35) a balance between gene induction and suppression was present and the absolute gene expression change was increased. When comparing the gene expression prior to irradiation with the last time point (00:00 - 42:53) 2,670 genes were differentially expressed, suggesting a massive and system-wide change of gene expression. Signaling pathways such as the ATM-regulated cell cycle and apoptosis, the Nrf2 pathway after oxidative stress exposure, the DNA repair mechanisms of homologous recombination, the non-homologous end joining, the mismatch repair, base-excision repair and strand-excision repair play a major role. Very interesting are the high activity of RNA-driven events, especially activities of small nucleolar RNAs and pseudouridine processes. This suggests that these RNA-modifying networks could have a hitherto unknown functional and protective effect on cell survival after exposure to ionizing radiation. All these protective networks and their time-specific interactions are essential for the survival of cells after exposure to oxidative stress and show a complex but consistent interaction of many individual components to a system-wide running program.

La numérisation 3D telle que pratiquée aujourd'hui repose essentiellement sur les connaissances de l'opérateur qui la réalise. La qualité des résultats reste très sensible à la procédure utilisée et par conséquent aux compétences de l'opérateur. Ainsi, la numérisation manuelle est très coûteuse en ressources humaines et matérielles et son résultat dépend fortement du niveau de technicité de l'opérateur. Les solutions de numérisation les plus avancées en milieu industriel sont basées sur une approche d'apprentissage nécessitant une adaptation manuelle pour chaque pièce. Ces systèmes sont donc semi-automatiques compte tenu de l'importance de la contribution humaine pour la planification des vues.Mon projet de thèse se focalise sur la définition d'un procédé de numérisation 3D automatique et intelligente. Ce procédé est présenté sous forme d'une séquence de processus qui sont la planification de vues, la planification de trajectoires, l'acquisition et les post-traitements des données acquises. L'originalité de notre démarche de numérisation est qu'elle est générique parce qu'elle n'est pas liée aux outils et méthodes utilisés pour la réalisation des tâches liées à chaque processus. Nous avons également développé trois méthodes de planification de vues pour la numérisation d'objets sans connaissance a priori de leurs formes. Ces méthodes garantissent une indépendance des résultats par rapport au savoir-faire de l'opérateur. L'originalité de ces approches est qu'elles sont applicables à tous types de scanners. Nous avons implanté ces méthodes sur une cellule de numérisation robotisée. Nos approches assurent une reconstruction progressive et intelligente d'un large panel d'objets de différentes classes de complexité en déplaçant efficacement le scanner