Temat för uppsatsen är toxic masculinity. Problemområdet är visualisering och uppfattning om toxic masculinity i film. Syftet med uppsatsen är att studera genusstyrd makt, kamerans roll och icke-verbal kommunikation från en karaktär präglad av toxic masculinity i tv-serien Euphoria. Syftet är att ge nya synpunkter till problemområdet visualisering av toxic masculinity i film, och synliggöra problemet med detta fenomen. Teori om maskulinitet, genusstryd makt, attraktivitet, kamerans roll och icke-verbal kommunikation presenteras. Uppsatsen är en filmanalys med genusperspektiv där toxic masculinity undersöks genom kvalitativ metod, då det finns strukturerat insamlat material som tolkas teoretiskt. Material för uppsatsen är taget ur HBOs tv-serie Euphoria. Analysen baserar sig på granskning av utvalda scener ur tv-serien, där materialet sedan läggs mot den teoretiska referensram som presenterats tidigare i studien. Frågeställningen besvaras genom analysens resultat att kamerans placering, fysiskt uppträdande, våldsamt beteende, karaktärsuppbyggnad och andras reaktioner tydligt betonar karaktärens toxiska beteende i Euphoria. Ovannämnda filmtekniska grepp medför att karaktären visar ett starkt beteendemönster av toxic masculinity. Man kan hävda att detta är gjort för att överdrivet tydliggöra ett toxic masculinity beteende som samhällen vill röra sig bort från. / The theme of the essay is toxic masculinity. The problem area is visualization and perception of toxic masculinity in film. The aim of the thesis is to study gender-controlled power, the role of the camera and non-verbal communication from a toxic masculinity character in the TV series Euphoria. The purpose is to give new views on the problem area visualization of toxic masculinity in film, and to highlight the problem of toxic masculinity. Theory of masculinity, gender power, attractiveness, the role of the camera and non-verbal communication are presented. The thesis is a film analysis with a gender perspective where toxic masculinity is investigated by qualitative method when there is structured collected material that is interpreted theoretically. Material for the essay is taken from HBO's TV series Euphoria. The analysis is based on reviewing selected scenes from the television series, the material being placed against the theoretical frame of reference presented earlier in the study. The question is answered through the results of the analysis that the camera's location, physical behavior, violent behavior, character structure and the reactions of others clearly emphasize the character's toxic behavior in Euphoria. The film-technical grips mentioned above prove that the character is perceived as an obnoxious toxic masculinity. It can be argued that this is done to show the bad toxic masculinity behavior societies want to move away from.

I den här studien analyseras företaget Gillettes visualisering av maskuliniteter i deras reklamfilm We Believe: The best men can be. Undersökningen utgår från hur företaget förhåller sig till genus efter rörelsen #metoo som slog igenom 2017. Genom en kvalitativ semiotisk analys, studeras utvalda klipp från reklamfilmen för att få en förståelse över symboler i reklamfilmen. De har sedan analyserats med hjälp av storytelling, representations teori och teoretiska begrepp, såsom maskulinitet, toxisk maskulinitet och woke-washing. Utifrån undersökningen ska en förståelse nås om Gillette som globalt företag har förändrat sin visuella kommunikation efter #metoo. Resultatet av studien är att Gillette inte skapar någon normbrytande gestaltning av maskulinitet. Istället visualiseras två olika former av maskuliniteter i reklamfilmen We Believe: The best men can be. Den första är en toxisk maskulinitet som Gillette tar avstånd från. Den andra är en traditionell hegemonisk maskulinitet, som bygger mycket på att en man ska beskydda och vara en förebild.

Malathion is a commonly used organophosphate pesticide on field crops, fruits, nut trees, vegetables, livestock, agricultural premises, and land. The approved uses also include mosquito and medfly control. These uses can result in human skin contact. The purpose of this study is to evaluate the human skin absorption of malathion for the purpose of assessing the risks associated with aqueous solution exposures following applications. Aerial applications can result in solubilized malathion in swimming pools and other waters that may be contacted. Human volunteers were selected and exposed to aqueous solutions of malathion at various concentrations. Participants submerged their arms and hands in twenty liters of dilute malathion solution in either a stagnant or stirred environment. The "disappearance method" was applied by measuring malathion concentrations in the water before and after human subject exposure to the water for various periods of time. Malathion was measured using Gas Chromatography. No measurable skin absorption was detected in 42% of the participants. Measurable skin absorption among the remaining 58% of participants resulted in doses that were more than an order of magnitude less than the minimal dose necessary to cause a measurable change in red blood cell acetylcholinesterase (RBC-AChE). Extrapolation of these results to a mathematical model for recreational swimmers and bathers exposed to contaminated swimming pools and surface waters typically detected after bait application again are an order of magnitude below the doses needed to cause a detectable change in RBC-AChE. These data indicate that exposure to aqueous malathion following usual aerial bait applications is not appreciably absorbed, and therefore, it is not a public health hazard.

Bullying and toxic leadership in the U. S. Army disrupt bonding processes between leaders and subordinates, which may jeopardize military operations, threaten resiliency initiatives, inhibit leader development, and stifle innovation. Little research, however, has looked at the role of informal leaders who operate outside the formal power structure in military environments. Using social exchange theory as the foundation, the purpose of this case study was to explore the activities of informal leaders who mediated the normal and disrupted leadership bonding processes in an Illinois Army National Guard Infantry Brigade. The research questions explored the informal leaders' influence and behaviors to gain a greater understanding of the bonding processes. A maximum variation purposeful sampling was used to select 25 informal leaders from 8 company size units in an Illinois Army National Guard Infantry Brigade. Publicly available archival data were also considered. All data were coded inductively and then subjected to Braun and Clark's thematic analysis procedure, revealing the perception that informal leaders improved bonding between soldiers and leaders and reduced stress associated with military service. The implications for positive social change include recommendations to the Illinois National Guard to provide support for using informal leaders as a mechanism to promote more cohesive relationships between leaders and subordinates and to explore the use of informal leadership to reduce stress.

Farmington Bay of Great Salt Lake receives a significant amount of the nutrient-polluted runoff from Salt Lake and Davis Counties, Utah. This nutrient-laden runoff has led to seasonal blooms of blue-green algae, Nodularia spumigena, which produce a toxin called nodularin that has been shown to be toxic to aquatic organisms, birds, and mammals. Nodularia spumigena are the most common algae found in Farmington Bay. This study focused on understanding the physical and chemical factors controlling the growth of Nodularia spumigena in order to improve our knowledge about how nutrients impact algae in the Great Salt Lake. The salinity of the bay ranged from almost fresh water (less than 0.2%) to water twice as salty as the sea (7.0%). Nutrient (nitrogen and phosphorus) levels were high in the bay, and showed patterns of change from south to north. Nodularia spumigena was found in concentrations that greatly exceeded the World Health Organization’s standards for contact recreation. Laboratory studies suggest that nutrients and salinity are significantly correlated with levels of Nodularia spumigena from Farmington Bay. In combination with complex ecosystem interactions, nutrients and salinity in Farmington Bay apparently contribute to the high levels of Nodularia spumigena that we measured.

Water quality is a crucial factor in determining the health of an environment, and in turn the health of all those living in the given environment. Early detection of potential hazards in source water used for drinking would help to avoid outbreaks of sickness and even death. Contaminants, found in contact and drinking water, having negative effects on human health may include pathogenic microorganisms, and metal ion pollutants such as lead or cadmium. Lead and cadmium were selected due to well-known electrochemical properties providing easy references for developing new detection devices. Current methods for detection of these contaminants are extremely expensive and time consuming. The focus of this project was to develop a single device that selectively detects multiple contaminants while maintaining sensitivity. This thesis provides an investigation into electrochemical techniques that can be used to develop cost effective, portable, and easy to use devices. A fabricated microelectrode array is proposed and tested that can be used for the detection of lead and cadmium ions, and also has the potential to incorporate detection of DNA sequences for specific species of pathogenic microorganisms.

Ce travail concerne la synthèse, les études des propriétés photophysiques et de complexation des molécules fluorescentes pour la détection sélective de cations toxiques tels que le césium, l'uranyle et l'arsenic. Tout d'abord, deux nouveaux capteurs fluorescents pour le césium, Calix-COU-P et Calix-COU-Benz-CN, comportant le Calix[4]arène-couronne-6 et le fluorophore coumarine ont été synthétisés avec succès. En ce qui concerne le Calix-COU-P, une forte exaltation de fluorescence et un déplacement bathochrome d'absorption ont été observés en présence de césium dans l'eau. Une très bonne limite de détection (0,77 μM) ainsi qu'une excellente sélectivité vis-à-vis du césium ont été observées, démontrant que Calix-COU-P pourrait être un capteur exceptionnel pour la détection de césium dans l'eau. Calix-COU-Benz-CN possède quant à lui des propriétés photophysiques prometteuses dans un milieu partiellement aqueux avec des bandes d'absorption et de fluorescence intenses en visible grâce à la présence des groupements benzothiazole et cyano. L'addition de césium conduit aux déplacements ver le bleu des spectres d'absorption et une augmentation de l'intensité de fluorescence. L'étude de la cinétique de complexation entre Calix-COU-Benz-CN et Cs+ par la technique « stopped-flow » a montré une cinétique rapide à faibles concentrations de cations et une cinétique plus longue à des concentrations élevées (> 10 mM). Calix-COU-Benz-CN a ensuite été incorporé dans un dispositif microfluidique. Une courbe d'étalonnage qui représente l'intensité de fluorescence en fonction de la concentration du césium montre une valeur de limite de détection de l’ordre de 2,0 μM. Deux composés analogues contenant la même entité complexante Calix[4]arène-couronne-6 ont été également synthétisés et greffés sur des nanoparticules magnétiques afin d’obtenir un matériau fonctionnalisé pour la décontamination de l’eau contenant le césium radioactif. L'étude préliminaire montre que les nanoparticules fonctionnalisées pourraient capter efficacement une quantité très faible du césium dans l’eau contaminée. Par la suite, en vue de développer des capteurs pour l’uranyle, une série de dérivés de salicylaldéhyde-azine ont été synthétisés et caractérisés. Leurs propriétés d'émission induites par l'agrégation (AIE) ont été étudiées. Dans un mélange eau/acétonitrile, les composés U1 et U2 présentent une forte fluorescence lors de l'agrégation tandis que le composé U3 ne présente pas cet effet AIE dans la même condition. Grâce aux sites de complexation contenant des atomes d’oxygène et d'azote, ces molécules présentent une complexation efficace avec les ions uranyle et induire une extinction de la fluorescence. Dans notre étude, il était intéressant de noter la présence d’uranyle conduit à une destruction de l'agrégation, en particulier pour la molécule U2 dans un mélange eau / acétonitrile 60:40. L’extinction de l’émission a été expliquée par des processus de destruction d'agrégats émissifs lors de la complexation avec le cation. Le mécanisme proposé a été validé par des expériences de diffusion dynamique de la lumière et de microscopie électronique à balayage. Le composé U2 présente une bonne sélectivité vis-à-vis de l'uranyle en présence des lanthanides et des autres cations compétitifs. Le capteur permet la détection de concentrations de l’ordre ppb en uranyle. Enfin, la synthèse et l'étude de nouveaux capteurs pour la détection de l’arsenic ont également été discutées. Une série de capteurs fluorescents portant l’entité complexante cystéine a été synthétisée et leurs propriétés complexantes pour l'arsenic ont été étudiées. De plus, des nanoparticules d'or modifiées par la cystéine, le glutathion et le dithiothréitol ont été synthétisées. La complexation de l'ion arsenic avec ces nanoparticules a été étudiée et discutée. Une perspective sur le développement de nouveaux capteurs pour l’arsenic a été proposée. / This thesis focuses on the synthesis, photophysical and complexation studies of fluorescent molecules for the selective detection of toxic cations such as cesium, uranyl and arsenic. Firstly, two new fluorescent sensors Calix-COU-P and Calix-COU-Benz-CN for cesium cations based on Calix[4]arene-crown-6 and coumarin fluorophore were successfully synthesized. For Calix-COU-P, a remarkable fluorescence enhancement and a red shift in absorption were observed due to the complexation with cesium cation in water. Good detection limits (0.77 µM) together with an excellent selectivity towards cesium were observed, demonstrating that Calix-COU-P could be an outstanding sensor for the detection of cesium cation in water. Calix-COU-Benz-CN possesses exceptional photophysical properties in an organoaqueous solution with intense visible absorption and emission bands thanks to benzothiazole and cyano groups. The addition of cesium cation to Calix-COU-Benz-CN offered noticeable blue shifts of the absorption spectra and considerably enhanced the emission intensity. The kinetic study of the complexation between Calix-COU-Benz-CN and Cs+ by stopped-flow experiments showed a rapid kinetic at small concentrations of cations and a lower kinetic at higher concentrations (> 10 mM). Calix-COU-Benz-CN was then incorporated into a microfluidic device. The voltage signals, which are proportional to the fluorescence intensity, were monitored continuously at various cesium concentrations. A calibration curve which represents the fluorescence intensity as a function of cesium cation concentration gives a value of detection limit up to 2.0 µM. This value is only slightly higher than the detection limit obtained by fluorescence titration (1.67 µM), which suggests that the microfluidic device is capable to provide good sensitivity towards targeted ion for real-world applications. Furthermore, two analogous compounds Calix-DOP and Calix-DOP-P containing the same complexing entity were also synthesized and grafted onto magnetic nanoparticles in order to obtain a functionalized material for the decontamination of the water containing radioactive cesium. The preliminary study shows that functionalized nanoparticles could efficiently sequester cesium ions from contaminated water.Afterward, to develop new sensors for the detection of uranyl cations, a series of salicylaldehyde azine derivatives have been synthesized and characterized. Their aggregation induced emission properties were studied. In water/acetonitrile solvent, compounds U1 and U2 exhibited strong fluorescence upon aggregation while compound U3 did not aggregate and stayed in solution as well-dispersed molecules. Owning to oxygen and nitrogen binding sites, the molecules could complex uranyl ions and induced fluorescence quenching. In our study, it was interesting to understand that the effect of uranyl was somewhat more destructive rather than constructive to the aggregation. The most obvious quenching effect was observed for the aggregates of U2 in water/acetonitrile 60:40. The emission quenching was explained by aggregate-breaking processes, that the emitting aggregates could be destroyed by the complexation with uranyl cation. The proposed mechanism was further supported by dynamic light scattering and scanning electron microscope experiments. Compound U2 showed good selectivity towards uranyl over lanthanides and other common cations. The sensor could detect uranyl up to ppb scale.Finally, synthesis and studies of new sensors for the detection of arsenic ion were also discussed. A series of fluorescent sensors bearing cysteine moiety was synthesized and their complexing properties for arsenic were studied. Furthermore, gold nanoparticles which were modified by cysteine, glutathione and dithiothreitol were synthesized. The complexation of arsenic ion with these modified gold nanoparticles was studied and discussed. A perspective for further development of arsenic sensors was proposed.

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Adverse Childhood Experiences (ACEs) are traumatic events experienced by children and adolescents ages zero to 17 that can have a long-lasting effect on a person's overall mental and physical health. Recent studies have shown that the rate of students entering college with one or more ACEs has increased, potentially resulting in a lower rate of college completion. The purpose of this study is to gain insight into how college students with multiple ACEs navigate the college experience despite their barriers. College students are a unique population due to their range of diversity in every aspect of a student's life, including race/ethnicity, number of ACEs, level of resiliency, and life experiences. Using a mixed-methods strategy, a cross-sectional design will be applied for a set of initial surveys to establish demographic information of the college student body. Then, a qualitative/narrative design will be used for students with multiple ACEs (four or more) to gain perspective of their college experience, including their resiliency and use of resources. By using a mixed-method design, the results will be able to highlight a percentage of the current college population in relation to ACEs and gain insight into the college interventions/resources from the point of view of students. Research has proven that ACEs can create potential barriers for college students when pursuing their college degrees. However, more research needs to emphasize student resiliency, social support, and the utilization of interventions.