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1	Methanobacterium cauma sp. nov., a hydrogenotrophic, halotolerant methanogen from an active serpintinization system at Chimaera seep Stephens, Aubree January 2023 (has links) The archaeal branch of life represents some of the oldest life forms on Earth. Archaea are believed to have diverged from Prokaryotes roughly 3.5 billion years ago and it’s theorized that biological methane production started around this time as well. This would make methanogenesis one of the oldest metabolisms on our planet. Methanogenesis is a process that, so far, is known to be unique to archaea. Since their evolution, methanogens have had massive impacts on Earth’s climate and biology. Methane is an important part of the global carbon cycle, but is also a major greenhouse gas, making it a vital area of research. The methanogen studied in this thesis is referred to as the wild type (WT) and was isolated from an active serpentinization system at Chimaera seep in Çıralı, Antalya Gulf, Turkey. The Chimaera seep is a geological formation analogous to mid-ocean ridges, but exposed and above land. The research in this thesis focuses on the description of the WT, which is believed to be a new species. Describing the WT consisted of the characterization of extremes as well as optimal growth conditions. The WT was found to grow at initial pH levels of 9.0 and 9.5. It grew from 15 °C to 45 °C, but not at 47 °C and not at 12 °C, and had an optimum at 39 °C. The WT had measurable growth up to 40 g/L NaCl, and had its optimum at 0 g/L. The WT grew best with H2/CO2 substrate, but also grew well on formate. methanogen archaea hydrogenotroph halotolerant Methanobacterium Chimaera seep methanogenesis Microbiology Mikrobiologi
2	Creation of Chimera Through the Usage of an Inspirational System Parish, Brandi Nicole 03 October 2013 (has links) My thesis involves studying the nature of chimera through history and how certain aspects of chimeras represent specific features of dualities in human nature. The research was reflected in a series of sketches, where one sketch was finalized into a fully realized 3D model. To aid in this goal, I created a system that will randomly generate chimera based on different characteristics. This system was created using Max 5, and was programmed to place images with alphas on top of each other to create unique chimeras. The variables within this system are derived from the research on chimeras depicted in art and mythology throughout history, and will be used as an inspirational tool to help generate unique combinations of chimeras that may not otherwise have been imagined. Chimera chimaera texturing 3D model generative generative systems maya 3D Greek Mythology sketch sketching creative
3	Intestinal HCO3- Secretion in Fish: A Widespread Mechanism with Newly Recognized Physiological Functions Taylor, Josi R. 23 June 2009 (has links) Intestinal HCO3- secretion and the excretion of resultant CaCO3 precipitates have become a recognized characteristic of seawater osmoregulation in teleosts; however, this is the first report of this osmoregulatory strategy outside of teleosts and also includes evidence for its use in green turtles, Chelonia mydas. Furthermore, the effects of feeding on intestinal HCO3- secretion were newly investigated in teleosts. Intestinal base secretion via apical Cl-/HCO3- exchange was found to increase following feeding, at a magnitude sufficient to offset the "alkaline tide" commonly associated with digestion. Intestinal HCO3- secretion in marine teleosts draws HCO3- from both endogenous (via hydration of intracellular CO2) and serosal (blood) sources, of which serosal HCO3- was found to contribute a greater proportion to the elevated postprandial intestinal base secretion measured in gulf toadfish, Opsanus beta. The mechanism by which this serosal HCO3- crosses the basolateral membrane for subsequent secretion into the intestinal lumen was confirmed in toadfish to be a basolateral Na+/HCO3- co-transporter, tfNBCe1. Furthermore, the isolated intestinal tissue was found to have a high metabolic rate in both control and postprandial toadfish, with respect to that of the whole animal, and shows a considerable specific dynamic action (SDA) response to feeding. Overall, this dissertation provides evidence for the widespread use of intestinal HCO3- secretion as a strategy of marine osmoregulation across aquatic taxa, and also for its newly recognized involvement in postprandial acid-base balance. Salt-water Balance Acid-base Balance Sodium Transport Sea Turtle Crab Hagfish Lamprey Shark Chimaera Sturgeon Toadfish
4	L'Anti-Salomé, représentations de la féminité bienveillante au temps de la Décadence (1850-1920) / The Anti-Salome, representations of benevolent femininity in the Time of Decadence Daouda, Marie Kawtar 12 December 2015 (has links) À la charnière entre deux siècles, Salomé fait office de lieu commun inévitable de la littérature et des arts. Cependant, aux côtés de la femme fatale, s'affirme la présence discrète mais tout aussi inévitable de la féminité fragile et bienveillante, formée sur le modèle de la princesse de conte et de l'héroïne de roman gothique, mais surtout sur celui de la vierge et martyre du roman édifiant, qu'il soit antiquisant ou contemporain. Parfois discrète jusqu'à l'illisibilité, cet archétype n'est légitimé dans sa fonction bienveillante que par un sacrifice. La signification religieuse du bouc émissaire reste à la fois lisible et efficace dans les structures narratives du roman, mais aussi dans le détail de l'écriture de ces personnages. Les figures mariales, magdaléennes ou féeriques sont soumises à la même épreuve de destruction, par laquelle l'édification qu'elles symbolisent se fait littéralement construction de sens, juxtaposition d'éléments esthétiques disparates mais efficaces par lesquels un personnage en vient à représenter allégoriquement la création artistique elle-même. En reliant le milieu du XIXe siècle aux années 1920 et en mettant les plus connus des héritiers de Baudelaire en perspective avec ceux dont le nom commence à peine à revenir à la postérité, l'enjeu de la recherche est d'établir dans quelle mesure ces représentations de la féminité bienveillante relèvent d'une permanence, d'un monument – au sens de monumentum – où la fin de siècle va non seulement contempler la mort d'une époque révolue, mais concentrer tout ce qui sert, à l'aube du XXe siècle, à théoriser l'art idéaliste. / At the crossroads between two centuries, Salome plays the part of a mandatory commonplace in art and literature. Nevertheless, next to the femme fatale and just as unavoidable, stands a fragile and benevolent form of feminity, molded in the cast of the fairytale princess and theGothic novel heroine, but inspired above all by the Virgin and Martyr of the edifying novel, be it antique or contemporary. As it might be discrete enough to become unreadable, this archetype's benevolence cannot be legitimated without a sacrifice. The religious meaning of the scapegoat remains just as obvious and as efficient in the novels' narrative structure, as well as in the detailsthrough which such characters are built. Marial, magdalenian and farylike characters must undergo the same destruction trial, through which their edifying meaning becomes a litteral building-up up meaning, by juxtaposing dissimilar and yet efficien aesthetic elements which turn the character into an allegory of artistic creation. By linking mid-19th century and the 1920es and by weaving a link between the most famous of Baudelaire's heirs and the ones whose name is just merging out of oblivion, the purpose of this study is to analyse how much these representations of benevolent femininity must be seen as a permanence, as a monument – or as a monumentum – where late-19th century will not only gaze a the death of a declining era, but concentrate all what will be used to theorize idealist artistic movements on the edge of the 20th century. Salomé Bienveillance Oblativité Sacrifice Dévotion Roman antiquisant Conte Décadence Vierge Parque Sirène Chimère Fée Apparition Spectre Ange Naturalisme Gothique Mouvement d'Oxford Idéalisme Symbolisme Préraphaélite Topos Monumentum Orphée Catholicisme Androgyne Salome Benevolence Oblativity Sacrifice Devotion Antique novel Tale Decadence Virgin Parque Mermaid Chimaera Fairy Ghost Angel Naturalism Gothic Idealism Symbolism Monumentum Oxford movement Preraphaelite Topos Orpheus Catholicism Androgyne

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