It is the goal of this program to identify these at-risk students, track their grades, and incorporate a tutorial program to motivate and build their self-esteem and ultimately, their academic performance. This program can succeed with the proper administrative support, teacher involvement and parent and community assistance.

Denna uppsats har gjorts i syfte att undersöka relationerna som finns mellan den filmtekniska aspekten av tempo och porträttering av manlig intimitet. Musikvideon till låten Territory av The Blaze analyseras genom en filmsemiotisk analys ur ett genusperspektiv. Metoden utformas efter hur aktivitet är representerat genom icke-verbal kommunikation för att läsa av vart intimitet uppstår och uteblir. Kommunikations- och genusteorier appliceras sedan på materialet för att se hur det påverkas av valet att skildra representationen med slow-motion eller normalt tempo. Användningen av slow-motion bidrar till att sakta ner i narrativet där den manliga intimiteten kan liknas till det sätt som kvinnor vanligtvis porträtteras genom Mulveys teorier gällande den manliga blicken. / The purpose of this essay is to analyze the relations between the use of pace and representation of masculine intimacy. The music video to the song Territory by The Blaze is observed through a gender perspective in a film semiotic analysis. The method involves how intimacy is represented through non-verbal communication. The material will be analyzed through theories involving communication and gender identity to see how it is affected by pace. This leads to the result of a conclusion that slowing down the narrative contributes to a representation of male intimacy to have resemblance to how women are portrayed according to Mulvey’s theories about the Male gaze.

Nedfrysning och upptining av spermatozoa används frekvent i andrologi-laboratoriet för assisterad reproduktionsteknik och bedömning av spermatozoa. I dagsläget finns det ingen standard hur nedfrysning och upptining av spermatozoa ska ske. I denna studie jämförs två olika processer; ”slow freeze” följt av upptining med G-IVFTM medium, vilken används på RMC Skånes Universitetssjukhus. Kryokonservering med ”pellets” följt av upptining med HTF + 10% HSA medium enligt Martínez-Soto J C m.fl. Två olika upptiningsmetoder används för varje process; först tinas spermatozoa i rumstemperatur i 10 minuter, följt av 10 minuter uppvärmning i 37 °C och precis innan analys tillsätts 37 °C medium. I den andra upptiningensmetoden tillsätts 37 °C medium till det frysta provet och förvaras i värmeskåp, 37 °C i 20 minuter. I studien analyseras effekterna av spermatozoa motilitet och vitalitet. Resultaten visar att med ”slow freeze” och G-IVFTM finns det ingen signifikant skillnad mellan upptiningsmetoderna för både motilitet, p-värde >0,05 och vitalitet, p-värde >0,05. I jämförelse med Martínez-Soto J C m.fl visades ingen skillnad mellan motilitet, p-värde >0,05. Studien visar en positiv effekt på vitalitet jämfört med Martínez-Soto J C m.fl studie, p-värde <0,01. Studien visar att användning av ”slow freeze” med G-IVFTM inte gör någon skillnad på motilitet men har en positiv signifikant påverkan på spermatozoa vitaliteten. Mer studier är nödvändiga för att stärka dessa resultat och överlag behövs mer studier inom området för att utveckla bättre metoder. / Freezing and thawing of spermatozoa are frequently used in the andrology laboratory for assisted reproduction techniques and assessment of spermatozoa. At present, there is no standard on how freezing and thawing of spermatozoa should occur. In this study two different processes are compared; “slow freeze” followed by thawing with G-IVFTM medium, which is used at RMC University Hospital. Cryopreservation with “pellets” followed by thawing with HTF + 10% HSA medium according to Martínez-Soto J C et al. Two different thawing methods are used for each process; first, the spermatozoa are thawed at room temperature for 10 minutes, followed by 10 minutes warming at 37 °C and just before analysis 37 °C medium is added. At the second thawing method, 37 °C medium is added to the sample and stored in a heating chamber, 37 °C for 20 minutes. The study analyzed the effects of spermatozoa motility and vitality. Results show that with “slow freeze” and G-IVFTM there is no significant difference between the two thawing methods for both motility, p-value >0,05 and vitality, p-value >0,05. Comparing with Martínez-Soto J C et al. no difference between motility was shown, p-value >0,05. The study shows a positive effect on vitality compared to Martínez-Soto J C et al, p-value <0,01. The study shows that the use of “slow freeze” with G-IVFTM does not make any difference in motility but has a significant positive effect on the spermatozoa vitality. More studies are necessary to strengthen these results. Overall more research is needed in the area to develop and find a common method.

Shuqaiq-II IWP is a combined RO water desalination and power plant facility. It operates with an open intake that feeds the plant with 100,000 m3/h of raw water. The facility is located 140 km north of Jizan, in a small bay where the run-off discharges of two wadis converge. The run-off coming from the wadis are rich in alluvial sediments that dramatically decrease the raw water quality at the intake point, causing periodic shutdowns of the plant and increasing the operational cost due to membrane replacement. Subsurface water intakes are an alternative for improving raw water quality, as they provide natural filtering of the feed water as it flows through the systems. In this type of system water flow through the sediment matrix is induced and during the percolation, several physical, chemical and biological processes take place, cleaning the water from particulate matter, resulting in high quality feed water that can be directly sent to the RO process without any additional pretreatment. A full hydrogeological profile of the seabed needs to be performed in order to determine the applicability of one of these systems in each particular location. In this study, 1 km of beach area at Shuqaiq-II IWP was surveyed. Ninety-one (91) samples from the shore and offshore sediments were collected and analyzed for hydraulic conductivity, porosity and grain size distribution. The laboratory analysis showed that the construction of the seabed galleries was technically feasible, and the proposed intake system was design to meet the feed water requirements for the RO facility (530.000 m3/d). The preliminary design consists of 17 cells in total, 16 of which will be in constant operation, and 1 alternate for whenever maintenance is needed in one of the other cells. The seabed gallery design includes 5 layers of sands with a total depth of 5 m. A detailed underdrain design methodology is presented. The system would be operated at an infiltration rate of 10 m/d and an average hydraulic retention time of 7h. Each cell will have an area of 3.500 m2 that will supply 35.000 m3/d of feed water to each RO train.

京都大学 / 0048 / 新制・課程博士 / 博士(理学) / 甲第22258号 / 理博第4572号 / 新制||理||1656(附属図書館) / 京都大学大学院理学研究科地球惑星科学専攻 / (主査)准教授 伊藤 喜宏, 教授 James Mori, 教授 岩田 知孝 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DGAM

The thesis deals with selected global problems and their inclusion in civic education with a focus on the topic of fast fashion. The theoretical part presents the phenomenon of fast fashion and its negative impacts on the environment and human health, approaches issues in the world of work and violations of human rights and freedoms. These global issues are considered in the context of educational areas, cross-cutting themes and also as part of the global education. The second part of the work is a concept of a didactic project of lessons with the theme of fast fashion inspired by the educational program of the ARPOK organization. The aim of the work is to increase awareness of the issues arising from fast fashion and the realization that the individual can influence the world by their actions and vice versa, how the current world affects the life of the individual. KEYWORDS fast fashion, slow fashion, greenwashing, environment, decent wages

京都大学 / 新制・課程博士 / 博士(理学) / 甲第23454号 / 理博第4748号 / 新制||理||1681(附属図書館) / 京都大学大学院理学研究科地球惑星科学専攻 / (主査)准教授 伊藤 喜宏, 准教授 宮澤 理稔, 教授 久家 慶子 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DGAM

The work's main topic is a recently published slow DoS attack called SlowDrop. The work focuses on the subject of describing the current state of the DoS problem as a whole and the SlowDrop attack as well. It works with this theoretical basis during the implementation of it's own SlowDrop attack model. This model is tested in various scenarios and the outcome results are analyzed and constructively discussed. Furthermore defensive mechanisms against this threat and DoS attacks in general are proposed, specific methods shown and configurations recommended. These methods are followingly tested and evaluated. Last but not least the traffic of a SlowDrop attacker and a legitimate client with bad connection, which the SlowDrop attack is trying to immitate, are compared. From this comparison final conclusions of this work are drawn.

This master's thesis is aimed how can be network traffic monitored using IP flows. The description of NEMEA framework that can be used to build complex intrusion detection system. Following chapters describes port scanning methods and SSH protocol which can be used for remote login to the system, which can be exploited by an attacker. These two areas are intended to be detected in a slow attack manner, when attacker using low attack speed, which he can evade multiple detection methods. Proposed method for detection such attacks is using information from the last few connections. Finally, proposed detection method results are further described.

La photonique sur silicium est envisagée comme une solution technologique très prometteuse pour le remplacement des interconnexions électriques par des interconnexions optiques devant se produire dans les prochaines années. Des dispositifs optoélectroniques comme des sources lasers, des modulateurs et des détecteurs, ont été développés pour la réalisation de circuits intégrant des émetteurs/récepteurs. Parmi les défis devant être relevés pour faire avancé la photonique sur silicium, la réduction de la consommation électrique du modulateur est un point crucial. L’intégration des composants passifs et actifs en utilisant une seule et même technologie est également un enjeu majeur pour les futurs systèmes de communication optique. Grâce au développement de l'intégration hybride de semi-conducteurs III-V sur silicium pour la réalisation de sources laser sur silicium, de nouvelles voies peuvent être envisagée pour réaliser des modulateurs optiques et des photodétecteurs efficaces et compacts. De plus, les cristaux photoniques 2D (PhC) et spécifiquement les structures à ondes lentes, qui sont connues pour renforcer les interactions entre la lumière et la matière peuvent apporter des solutions intéressantes pour diminuer de manière ultime la puissance consommée.Dans ce contexte, les travaux menés durant ma thèse ont porté plus spécifiquement sur la conception, la fabrication et la caractérisation de modulateurs à électro-absorption à onde lente en semiconducteur III-V sur silicium. Dans une première partie consacrée à la modélisation, une attention particulière est portée à la conception du cristal photonique et au couplage de la lumière du guide silicium vers l’onde lente. Les performances de la structure optimisée sont aussi analysées, donnant un modulateur de seulement 18.75 µm de longueur fonctionnant à 15 GHz avec un taux d’extinction supérieure à 5 dB sur une gamme spectrale supérieure à 10 nm. Par la suite, l’ensemble des procédés de nanotechnologies durant la thèse pour la fabrication des dispositifs sont présentés. Enfin, les résultats expérimentaux obtenus au cours de cette thèse démontrent l’effet Stark Confiné Quantiquement et l’effet de photodétection obtenu sur les structures intégrées.Les perspectives de ce travail de thèse concernent la réalisation de circuits intégrés photoniques complets, incluant sources lasers, modulateurs à électroabsorption et photodétecteurs en utilisant une seule et même technologie. / Silicon photonics is considered as a promising solution to replace electrical interconnections in the next years. Among the remaining challenges, the driving power of the active devices has to be minimized. Furthermore the use of a common technological platform for the realization of Silicon (Si) photonics passive and active devices would present a great interest in term of fabrication complexity and cost. III-V on Si is a good candidate for such a common technological platform as the physical properties of III-V semiconductors allow for active functionalities such as III-V on Si laser which have already been successfully demonstrated. In this perspective, 2D photonic crystals (PhCs) and slow light structures, which are known to intrinsically reinforce light/matter interactioncan alsobring interesting opportunities.In this context, the work is focused on the design, fabrication and characterization of slow-light III-V- on-silicon electroabsorption modulators. In a first part, the photonic crystal structure and light coupling from silicon waveguide to slowlight III-V waveguide are designed and modeled. The performance of the optimized structure is analyzed, showing a modulator operating at 15 GHz and exhibiting an extinction ratio of more than 5 dB over a spectral range of more than 10 nm, using a 18.75 µ;m-long modulator. Subsequently, the masks and fabrication steps for a hybrid III-V photonic crystalon Si modulators are presented. Finally, the experimental results obtained during this thesis are presented, showing Quantum Confined Stark Effect and photodetection in the waveguide integrated structures.The reported works open perspective towards the integrating of optical modulators with III-V on silicon nanolasers and photodetectors using a single technology.