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  • Resultat 763751-763760 av 1031027
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763751.
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763752.
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763753.
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763754.
  • Reporting the Attacks on Dubrovnik in 1991, and the Recognition of Croatia
  • 2017
  • Proceedings (redaktörskap) (refereegranskat)abstract
    • This collection brings together 13 papers by 16 authors presented at the international conference “Reporting on attacks on Dubrovnik and recognition of Croatia”, held in Dubrovnik, Croatia, in October 2011. It provides a combined scientific and practical overview of the role of the media and journalists during the attack on Dubrovnik in autumn 1991 by the federal army (JNA) and Montenegrin reservists. This book represents a primary source of information about the propaganda war waged during the conflict between Croatia and Serbia in 1991, because some of the contributors were practical journalists and ministers during the events of that year. The book is structured in three parts: global media, international relations, and strategic communication during wartime; the example of Dubrovnik, and the practices of wartime reporting from the Dubrovnik area; and media analysis on the subject of war in Dubrovnik and Croatia.
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763755.
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763756.
  • Repouskou, Anastasia, et al. (författare)
  • Gestational exposure to an epidemiologically defined mixture of phthalates leads to gonadal dysfunction in mouse offspring of both sexes.
  • 2019
  • Ingår i: Scientific Reports. - : Nature Publishing Group. - 2045-2322. ; 9:1, s. 1-17
  • Tidskriftsartikel (refereegranskat)abstract
    • The increasing concern for the reproductive toxicity of abundantly used phthalates requires reliable tools for exposure risk assessment to mixtures of chemicals, based on real life human exposure and disorder-associated epidemiological evidence. We herein used a mixture of four phthalate monoesters (33% mono-butyl phthalate, 16% mono-benzyl phthalate, 21% mono-ethyl hexyl phthalate, and 30% mono-isononyl phthalate), detected in 1st trimester urine of 194 pregnant women and identified as bad actors for a shorter anogenita I distance (AGD) in their baby boys. Mice were treated with 0, 0.26, 2.6 and 13 mg/kg/d of the mixture, corresponding to 0x, 10x, 100x, 500x levels detected in the pregnant women. Adverse outcomes detected in the reproductive system of the offspring in pre-puberty and adulthood included reduced AGD index and gonadal weight, changes in gonadal histology and altered expression of key regulators of gonadal growth and steroidogenesis. Most aberrations were apparent in both sexes, though more pronounced in males, and exhibited a non-monotonic pattern. The phthalate mixture directly affected expression of steroidogenesis as demonstrated in a relevant in vitro model. The detected adversities at exposures close to the levels detected in pregnant women, raise concern on the existing safety limits for early-life human exposures and emphasizes the need for re-evaluation of the exposure risk.
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763757.
  • Repouskou, Anastasia, et al. (författare)
  • Long term transcriptional and behavioral effects in mice developmentally exposed to a mixture of endocrine disruptors associated with delayed human neurodevelopment
  • 2020
  • Ingår i: Scientific Reports. - : Nature Publishing Group. - 2045-2322. ; 10, s. 1-8
  • Tidskriftsartikel (refereegranskat)abstract
    • Accumulating evidence suggests that gestational exposure to endocrine disrupting chemicals (EDCs) may interfere with normal brain development and predispose for later dysfunctions. The current study focuses on the exposure impact of mixtures of EDCs that better mimics the real-life situation. We herein describe a mixture of phthalates, pesticides and bisphenol A (mixture N1) detected in pregnant women of the SELMA cohort and associated with language delay in their children. To study the long-term impact of developmental exposure to N1 on brain physiology and behavior we administered this mixture to mice throughout gestation at doses 0x, 0.5x, 10x, 100x and 500x the geometric mean of SELMA mothers' concentrations, and examined their offspring in adulthood. Mixture N1 exposure increased active coping during swimming stress in both sexes, increased locomotion and reduced social interaction in male progeny. The expression of corticosterone receptors, their regulator Fkbp5, corticotropin releasing hormone and its receptor, oxytocin and its receptor, estrogen receptor beta, serotonin receptors (Htr1a, Htr2a) and glutamate receptor subunit Grin2b, were modified in the limbic system of adult animals, in a region-specific, sexually-dimorphic and experience-dependent manner. Principal component analysis revealed gene clusters associated with the observed behavioral responses, mostly related to the stress axis. This integration of epidemiology-based data with an experimental model increases the evidence that prenatal exposure to EDC mixtures impacts later life brain functions.
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763758.
  • Repp, Jascha, et al. (författare)
  • Controlling the Charge State of Individual Gold Adatoms
  • 2004
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 305, s. 493-
  • Tidskriftsartikel (refereegranskat)abstract
    • The nature and control of individual metal atoms on insulators are of great importance in emerging atomic-scale technologies. Individual gold atoms on an ultrathin insulating sodium chloride film supported by a copper surface exhibit two different charge states, which are stabilized by the large ionic polarizability of the film. The charge state and associated physical and chemical properties such as diffusion can be controlled by adding or removing a single electron to or from the adatom with a scanning tunneling microscope tip. The simple physical mechanism behind the charge bistability in this case suggests that this is a common phenomenon for adsorbates on polar insulating films.
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763759.
  • Repp, Jascha, et al. (författare)
  • Imaging Bond Formation Between a Gold Atom and Pentacene on an Insulating Surface
  • 2006
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 312:5777, s. 1196-1199
  • Tidskriftsartikel (refereegranskat)abstract
    • A covalent bond between an individual pentacene molecule and a gold atom was formed by means of single-molecule chemistry inside a scanning tunneling microscope junction. The bond formation is reversible, and different structural isomers can be produced. The single-molecule synthesis was done on ultrathin insulating films that electronically isolated the reactants and products from their environment. Direct imaging of the orbital hybridization upon bond formation provides insight into the energetic shifts and occupation of the molecular resonances.
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763760.
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