@phdthesis{Ayguel2015,
  author    = {Ayg{\"u}l, Mesut},
  title     = {Pre-collisional accretion and exhumation along the southern Laurasian active margin, Central Pontides, Turkey},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-416769},
  school      = {Universit{\"a}t Potsdam},
  pages     = {xxxiv, 206},
  year      = {2015},
  abstract  = {The Central Pontides is an accretionary-type orogenic area within the Alpine-Himalayan orogenic belt characterized by pre-collisional tectonic continental growth. The region comprises Mesozoic subduction-accretionary complexes and an accreted intra-oceanic arc that are sandwiched between the Laurasian active continental margin and Gondwana-derived the K{\i}r{\c{s}}ehir Block. The subduction-accretion complexes mainly consist of an Albian-Turonian accretionary wedge representing the Laurasian active continental margin. To the north, the wedge consists of slate/phyllite and metasandstone intercalation with recrystallized limestone, Na-amphibole-bearing metabasite (PT= 7-12 kbar and 400 ± 70 ºC) and tectonic slices of serpentinite representing accreted distal part of a large Lower Cretaceous submarine turbidite fan deposited on the Laurasian active continental margin that was subsequently accreted and metamorphosed. Raman spectra of carbonaceous material (RSCM) of the metapelitic rocks revealed that the metaflysch sequence consists of metamorphic packets with distinct peak metamorphic temperatures. The majority of the metapelites are low-temperature (ca. 330 °C) slates characterized by lack of differentiation of the graphite (G) and D2 defect bands. They possibly represent offscraped distal turbidites along the toe of the Albian accretionary wedge. The rest are phyllites that are characterized by slightly pronounced G band with D2 defect band occurring on its shoulder. Peak metamorphic temperatures of these phyllites are constrained to 370-385 °C. The phyllites are associated with a strip of incipient blueschist facies metabasites which are found as slivers within the offscraped distal turbidites. They possibly represent underplated continental metasediments together with oceanic crustal basalt along the basal d{\´e}collement. Tectonic emplacement of the underplated rocks into the offscraped distal turbidites was possibly achieved by out-of-sequence thrusting causing tectonic thickening and uplift of the wedge. 40Ar/39Ar phengite ages from the phyllites are ca. 100 Ma, indicating Albian subduction and regional HP metamorphism. The accreted continental metasediments are underlain by HP/LT metamorphic rocks of oceanic origin along an extensional shear zone. The oceanic metamorphic sequence mainly comprises tectonically thickened deep-seated eclogite to blueschist facies metabasites and micaschists. In the studied area, metabasites are epidote-blueschists locally with garnet (PT= 17 ± 1 kbar and 500 ± 40 °C). Lawsonite-blueschists are exposed as blocks along the extensional shear zone (PT= 14 ± 2 kbar and 370-440 °C). They are possibly associated with low shear stress regime of the initial stage of convergence. Close to the shear zone, the footwall micaschists consist of quartz, phengite, paragonite, chlorite, rutile with syn-kinematic albite porphyroblast formed by pervasive shearing during exhumation. These types of micaschists are tourmaline-bearing and their retrograde nature suggests high-fluid flux along shear zones. Peak metamorphic mineral assemblages are partly preserved in the chloritoid-micaschist farther away from the shear zone representing the zero strain domains during exhumation. Three peak metamorphic assemblages are identified and their PT conditions are constrained by pseudosections produced by Theriak-Domino and by Raman spectra of carbonaceous material: 1) garnet-chloritoid-glaucophane with lawsonite pseudomorphs (P= 17.5 ± 1 kbar, T: 390-450 °C) 2) chloritoid with glaucophane pseudomorphs (P= 16-18 kbar, T: 475 ± 40 °C) and 3) relatively high-Mg chloritoid (17\%) with jadeite pseudomorphs (P= 22-25 kbar; T: 440 ± 30 °C) in addition to phengite, paragonite, quartz, chlorite, rutile and apatite. The last mineral assemblage is interpreted as transformation of the chloritoid + glaucophane assemblage to chloritoid + jadeite paragenesis with increasing pressure. Absence of tourmaline suggests that the chloritoid-micaschist did not interact with B-rich fluids during zero strain exhumation. 40Ar/39Ar phengite age of a pervasively sheared footwall micaschist is constrained to 100.6 ± 1.3 Ma and that of a chloritoid-micaschist is constrained to 91.8 ± 1.8 Ma suggesting exhumation during on-going subduction with a southward younging of the basal accretion and the regional metamorphism. To the south, accretionary wedge consists of blueschist and greenschist facies metabasite, marble and volcanogenic metasediment intercalation. 40Ar/39Ar phengite dating reveals that this part of the wedge is of Middle Jurassic age partly overprinted during the Albian. Emplacement of the Middle Jurassic subduction-accretion complexes is possibly associated with obliquity of the Albian convergence. Peak metamorphic assemblages and PT estimates of the deep-seated oceanic metamorphic sequence suggest tectonic stacking within wedge with different depths of burial. Coupling and exhumation of the distinct metamorphic slices are controlled by decompression of the wedge possibly along a retreating slab. Structurally, decompression of the wedge is evident by an extensional shear zone and the footwall micaschists with syn-kinematic albite porphyroblasts. Post-kinematic garnets with increasing grossular content and pseudomorphing minerals within the chloritoid-micaschists also support decompression model without an extra heating. Thickening of subduction-accretionary complexes is attributed to i) significant amount of clastic sediment supply from the overriding continental domain and ii) deep level basal underplating by propagation of the d{\´e}collement along a retreating slab. Underplating by basal d{\´e}collement propagation and subsequent exhumation of the deep-seated subduction-accretion complexes are connected and controlled by slab rollback creating a necessary space for progressive basal accretion along the plate interface and extension of the wedge above for exhumation of the tectonically thickened metamorphic sequences. This might be the most common mechanism of the tectonic thickening and subsequent exhumation of deep-seated HP/LT subduction-accretion complexes. To the south, the Albian-Turonian accretionary wedge structurally overlies a low-grade volcanic arc sequence consisting of low-grade metavolcanic rocks and overlying metasedimentary succession is exposed north of the İzmir-Ankara-Erzincan suture (İAES), separating Laurasia from Gondwana-derived terranes. The metavolcanic rocks mainly consist of basaltic andesite/andesite and mafic cognate xenolith-bearing rhyolite with their pyroclastic equivalents, which are interbedded with recrystallized pelagic limestone and chert. The metavolcanic rocks are stratigraphically overlain by recrystallized micritic limestone with rare volcanogenic metaclastic rocks. Two groups can be identified based on trace and rare earth element characteristics. The first group consists of basaltic andesite/andesite (BA1) and rhyolite with abundant cognate gabbroic xenoliths. It is characterized by relative enrichment of LREE with respect to HREE. The rocks are enriched in fluid mobile LILE, and strongly depleted in Ti and P reflecting fractionation of Fe-Ti oxides and apatite, which are found in the mafic cognate xenoliths. Abundant cognate gabbroic xenoliths and identical trace and rare earth elements compositions suggest that rhyolites and basaltic andesites/andesites (BA1) are cogenetic and felsic rocks were derived from a common mafic parental magma by fractional crystallization and accumulation processes. The second group consists only of basaltic andesites (BA2) with flat REE pattern resembling island arc tholeiites. Although enriched in LILE, this group is not depleted in Ti or P. Geochemistry of the metavolcanic rocks indicates supra-subduction volcanism evidenced by depletion of HFSE and enrichment of LILE. The arc sequence is sandwiched between an Albian-Turonian subduction-accretionary complex representing the Laurasian active margin and an ophiolitic m{\´e}lange. Absence of continent derived detritus in the arc sequence and its tectonic setting in a wide Cretaceous accretionary complex suggest that the K{\"o}sdağ Arc was intra-oceanic. This is in accordance with basaltic andesites (BA2) with island arc tholeiite REE pattern. Zircons from two metarhyolite samples give Late Cretaceous (93.8 ± 1.9 and 94.4 ± 1.9 Ma) U/Pb ages. Low-grade regional metamorphism of the intra-oceanic arc sequence is constrained 69.9 ± 0.4 Ma by 40Ar/39Ar dating on metamorphic muscovite from a metarhyolite indicating that the arc sequence became part of a wide Tethyan Cretaceous accretionary complex by the latest Cretaceous. The youngest 40Ar/39Ar phengite age from the overlying subduction-accretion complexes is 92 Ma confirming southward younging of an accretionary-type orogenic belt. Hence, the arc sequence represents an intra-oceanic paleo-arc that formed above the sinking Tethyan slab and finally accreted to Laurasian active continental margin. Abrupt non-collisional termination of arc volcanism was possibly associated with southward migration of the arc volcanism similar to the Izu-Bonin-Mariana arc system. The intra-oceanic K{\"o}sdağ Arc is coeval with the obducted supra-subduction ophiolites in NW Turkey suggesting that it represents part of the presumed but missing incipient intra-oceanic arc associated with the generation of the regional supra-subduction ophiolites. Remnants of a Late Cretaceous intra-oceanic paleo-arc and supra-subduction ophiolites can be traced eastward within the Alp-Himalayan orogenic belt. This reveals that Late Cretaceous intra-oceanic subduction occurred as connected event above the sinking Tethyan slab. It resulted as arc accretion to Laurasian active margin and supra-subduction ophiolite obduction on Gondwana-derived terranes.},
  language  = {en}
}
@phdthesis{Heyer2015,
  author    = {Heyer, Vera},
  title     = {Native and non-native processing of derived forms},
  school      = {Universit{\"a}t Potsdam},
  pages     = {318},
  year      = {2015},
  language  = {en}
}
@phdthesis{FuentesTaladriz2015,
  author    = {Fuentes Taladriz, Paulina Andrea},
  title     = {High-level production of the antimalarial drug precursor artemisinic acid in plastids and in vivo visualization of plastid-to-nucleus gene transfer},
  school      = {Universit{\"a}t Potsdam},
  pages     = {148},
  year      = {2015},
  language  = {en}
}
@phdthesis{Tomaszewska2015,
  author    = {Tomaszewska, Paulina},
  title     = {Sexual aggression victimization and perpetration among Polish Youth},
  school      = {Universit{\"a}t Potsdam},
  pages     = {200},
  year      = {2015},
  language  = {en}
}
@phdthesis{Meyer2015,
  author    = {Meyer, S{\"o}ren},
  title     = {Toxicity and toxicokinetics of arsenolipids and their metabolites},
  school      = {Universit{\"a}t Potsdam},
  pages     = {152, VIII},
  year      = {2015},
  language  = {en}
}
@phdthesis{Brachs2015,
  author    = {Brachs, Maria},
  title     = {Genome wide expression analysis and metabolic mechanisms predicting body weight maintenance},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-100767},
  school      = {Universit{\"a}t Potsdam},
  pages     = {106},
  year      = {2015},
  abstract  = {Obesity is a major health problem for many developing and industrial countries. Increasing rates reach almost 50 \% of the population in some countries and related metabolic diseases including cardiovascular events and T2DM are challenging the health systems. Adiposity, an increase in body fat mass, is a major hallmark of obesity. Adipose tissue is long known not only to store lipids but also to influence whole-body metabolism including food intake, energy expenditure and insulin sensitivity. Adipocytes can store lipids and thereby protect other tissue from lipotoxic damage. However, if the energy intake is higher than the energy expenditure over a sustained time period, adipose tissue will expand. This can lead to an impaired adipose tissue function resulting in higher levels of plasma lipids, which can affect other tissue like skeletal muscle, finally leading to metabolic complications. Several studies showed beneficial metabolic effects of weight reduction in obese subjects immediately after weight loss. However, weight regain is frequently observed along with potential negative effects on cardiovascular risk factors and a high intra-individual response. We performed a body weight maintenance study investigating the mechanisms of weight maintenance after intended WR. Therefore we used a low caloric diet followed by a 12-month life-style intervention. Comprehensive phenotyping including fat and muscle biopsies was conducted to investigate hormonal as well as metabolic influences on body weight regulation. In this study, we showed that weight reduction has numerous potentially beneficial effects on metabolic parameters. After 3-month WR subjects showed significant weight and fat mass reduction, lower TG levels as well as higher insulin sensitivity. Using RNA-Seq to analyse whole fat and muscle transcriptome a strong impact of weight reduction on adipose tissue gene expression was observed. Gene expression alterations over weight reduction included several cellular metabolic genes involved in lipid and glucose metabolism as well as insulin signalling and regulatory pathways. These changes were also associated with anthropometric parameters assigning body composition. Our data indicated that weight reduction leads to a decreased expression of several lipid catabolic as well as anabolic genes. Long-term body weight maintenance might be influenced by several parameters including hormones, metabolic intermediates as well as the transcriptional landscape of metabolic active tissues. Our data showed that genes involved in biosynthesis of unsaturated fatty acids might influence the BMI 18-month after a weight reduction phase. This was further supported by analysing metabolic parameters including RQ and FFA levels. We could show that subjects maintaining their lost body weight had a higher RQ and lower FFA levels, indicating increased metabolic flexibility in subjects. Using this transcriptomic approach we hypothesize that low expression levels of lipid synthetic genes in adipose tissue together with a higher mitochondrial activity in skeletal muscle tissue might be beneficial in terms of body weight maintenance.},
  language  = {en}
}
@phdthesis{Luft2015,
  author    = {Luft, Laura Charlotte},
  title     = {Bridging the gap between science and nature conservation practice},
  school      = {Universit{\"a}t Potsdam},
  pages     = {173},
  year      = {2015},
  language  = {en}
}
@phdthesis{Radenacker2015,
  author    = {Radenacker, Anke},
  title     = {Economic consequences of family dissolution},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-100217},
  school      = {Universit{\"a}t Potsdam},
  pages     = {v, 134},
  year      = {2015},
  abstract  = {Welfare states and policies have changed greatly over the past decades, mostly characterized by retrenchments in terms of government spending or in terms of restricted access to certain benefits. In the area of family policies, however, a lot of countries have simultaneously expanded provisions and transfers for families. Bringing together the macro analysis of policy variation and household income changes on the micro-level, the main research question of the dissertation is to what extent economic consequences following separation and divorce in families with children have changed between the 1980s and the 2000s in Germany and the United States. The second research question of the dissertation regards the differences in dissolution outcomes between married and cohabiting parents in Germany. The dissertation thus aims to link institutional regulations of welfare states with the actual income situation of families. To achieve this, a research design was developed that has never been used for the analysis of the economic consequences of family dissolution. For this, the two longest running panel datasets, German Socio-economic Panel (GSOEP) and the US American Panel Study of Income Dynamics (PSID), have been used. The analytic strategy applied to estimate the effects of family dissolution on household income is a difference-in-difference design combined with coarsened exact matching (CEM). To begin with, the dissertation confirmed many findings of previous research, for example regarding the gender differences in family dissolution outcomes. Mothers experience clearly higher relative income losses and consequently higher risks of poverty than fathers. This finding is universal, that is it holds for both countries, for all time periods observed, and for all measures of economic outcome that were employed. Another confirmed finding is the higher level of welfare state intervention in Germany compared to the United States. The dissertation also revealed a number of novel findings. The results show that the expansion of family policies in Germany over time has not been accompanied by substantially decreasing income losses for mothers. Though income losses have slightly decreased over time, they have become more persistent during the years following family dissolution. The impact of the German welfare state has meanwhile been quite stable. American mothers' income losses took place on a slightly lower level than those of German mothers. Only during the 1980s their relative losses were clearly lower than those of German mothers. And also American mothers did not recover as much from their income losses during the 2000s than they used to during the 1980s. For them, the 1996 welfare reform brought a considerable decrease in welfare state support. Accordingly, the results for American mothers can certainly be described as a shift from public to private provision. The general finding of previous studies that fathers do not have to suffer income losses, or if at all rather moderate ones compared to mothers, can be confirmed. Nevertheless, both German and US American fathers face a deterioration of the economic consequences of family dissolution over time. German fathers' relative income changes are still positive though they have decreased over time. One reason for this decrease is the increasing loss of partner earnings following union dissolution. Also among American fathers, income gains still prevail in the year of family dissolution. Two years later, however, they have been facing income losses already since the 1980s which have furthermore increased considerably over time. Zooming in on Germany, family dissolution outcomes by marital status show negligible differences between cohabiting and married mothers in disposable income, but considerable differences in losses of income before taxes and transfers. It is the impact of the welfare state that equalizes the differences in income losses between these two groups of mothers. For married mothers, losses are not as high in the year of event but they have difficulties to recover from these losses. Without the income buffering of the welfare state, married mothers would, three years after family dissolution, remain with relative income losses double as high as for cohabiting mothers. Compared to mothers, differences between married and cohabiting fathers are visible in changes of income before as well as after taxes and transfers. The welfare state does not alter the difference between the two groups of fathers. With regard to both income concepts, cohabiting fathers fare worse than married fathers. Cohabiting fathers suffer moderate income losses of disposable income while married fathers experience moderate income gains. Accounting for support payments is decisive for fathers' income changes. If these payments are not deducted from disposable income, both married and cohabiting fathers experience gains in disposable income following family dissolution.},
  language  = {en}
}
@phdthesis{Matuschek2015,
  author    = {Matuschek, Hannes},
  title     = {Applications of reproducing Kernel Hilbert spaces and their approximations},
  school      = {Universit{\"a}t Potsdam},
  pages     = {83},
  year      = {2015},
  language  = {en}
}
@phdthesis{Reimer2015,
  author    = {Reimer, Anna Maria},
  title     = {The poetics of the real and aesthetics of the reel},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-95660},
  school      = {Universit{\"a}t Potsdam},
  pages     = {298},
  year      = {2015},
  abstract  = {The dissertation proposes that the spread of photography and popular cinema in 19th- and 20th-century-India have shaped an aesthetic and affective code integral to the reading and interpretation of Indian English novels, particularly when they address photography and/or cinema film, as in the case of the four corpus texts. In analyzing the nexus between 'real' and 'reel', the dissertation shows how the texts address the reader as media consumer and virtual image projector. Furthermore, the study discusses the Indian English novel against the backdrop of the cultural and medial transformations of the 20th century to elaborate how these influenced the novel's aesthetics. Drawing upon reception aesthetics, the author devises the concept of the 'implied spectator' to analyze the aesthetic impact of the novels' images as visual textures. No God in Sight (2005) by Altaf Tyrewala comprises of a string of 41 interior monologues, loosely connected through their narrators' random encounters in Mumbai in the year 2000. Although marked by continuous perspective shifts, the text creates a sensation of acute immediacy. Here, the reader is addressed as implied spectator and is sutured into the narrated world like a film spectator ― an effect created through the use of continuity editing as a narrative technique. Similarly, Ruchir Joshi's The Last Jet Engine Laugh (2002) coll(oc)ates disparate narrative perspectives and explores photography as an artistic practice, historiographic recorder and epistemological tool. The narrative appears guided by the random viewing of old photographs by the protagonist and primary narrator, the photographer Paresh Bhatt. However, it is the photographic negative and the practice of superimposition that render this string of episodes and different perspectives narratively consequential and cosmologically meaningful. Photography thus marks the perfect symbiosis of autobiography and historiography. Tabish Khair's Filming. A Love Story (2007) immerses readers in the cine-aesthetic of 1930s and 40s Bombay film, the era in which the embedded plot is set. Plotline, central scenes and characters evoke the key films of Indian cinema history such as Satyajit Ray's "Pather Panchali" or Raj Kapoor's "Awara". Ultimately, the text written as film dissolves the boundary between fiction and (narrated) reality, reel and real, thereby showing that the images of individual memory are inextricably intertwined with and shaped by collective memory. Ultimately, the reconstruction of the past as and through film(s) conquers trauma and endows the Partition of India as a historic experience of brutal contingency with meaning. The Bioscope Man (Indrajit Hazra, 2008) is a picaresque narrative set in Calcutta - India's cultural capital and birthplace of Indian cinema at the beginning of the 20th century. The autodiegetic narrator Abani Chatterjee relates his rise and fall as silent film star, alternating between the modes of tell and show. He is both autodiegetic narrator and spectator or perceiving consciousness, seeing himself in his manifold screen roles. Beyond his film roles however, the narrator remains a void. The marked psychoanalytical symbolism of the text is accentuated by repeated invocations of dark caves and the laterna magica. Here too, 'reel life' mirrors and foreshadows real life as Indian and Bengali history again interlace with private history. Abani Chatterjee thus emerges as a quintessentially modern man of no qualities who assumes definitive shape only in the lost reels of the films he starred in. The final chapter argues that the static images and visual frames forwarded in the texts observe an integral psychological function: Premised upon linear perspective they imply a singular, static subjectivity appealing to the postmodern subject. In the corpus texts, the rise of digital technology in the 1990s thus appears not so much to have displaced older image repertories, practices and media techniques, than it has lent them greater visibility and appeal. Moreover, bricolage and pastiche emerge as cultural techniques which marked modernity from its inception. What the novels thus perpetuate is a media archeology not entirely servant to the poetics of the real. The permeable subject and the notion of the gaze as an active exchange as encapsulated in the concept of darshan - ideas informing all four texts - bespeak the resilience of a mythical universe continually re-instantiated in new technologies and uses. Eventually, the novels convey a sense of subalternity to a substantially Hindu nationalist history and historiography, the centrifugal force of which developed in the twentieth century and continues into the present.},
  language  = {en}
}