3,258 research outputs found

    The Distribution of Revenues From State-Collected Consumer Taxes

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    VĂ€rdegrundsarbetet i förskolan dĂ€r genus och likabehandling stĂ„r i fokus Ă€r ett Ă€mne som skall arbetas aktivt med och det var detta som var grunden i underökning. Undersökningen utgick ifrĂ„n tvĂ„ frĂ„gor som handlade om pedagogernas kompetens i genusvetenskap samt vilka genuspedagogiska strategier som de anvĂ€nde i arbetet med barnen. För att undersöka detta sĂ„ valde jag att anvĂ€nda mig av en halvstrukturerad enkĂ€t dĂ€r de flesta frĂ„gorna var av öppen karaktĂ€r för att kunna fĂ„nga vad pedagogernas kunskap om de olika genusvetenskapliga begreppen. De slutna frĂ„gorna fĂ„ngade vilka genuspedagogiska strategier som pedagogerna anvĂ€nde i sitt arbete med barnen. 40 enkĂ€ter delades ut till pedagogerna i ett rektorsomrĂ„de. FrĂ„n resultatdelen kunde det utlĂ€sas att det var mĂ„nga olika definitioner pĂ„ de genusvetenskapliga begreppen och att flertalet av pedagogerna inte hade samma syn som forskningen kring om det beror pĂ„ det sociala eller det biologiska nĂ€r barnen positionerar sig som pojkar eller flickor. Resultatet visade ocksĂ„ att endast ett fĂ„tal pedagogerna anvĂ€nder sig av det komplicerande och normkritiska arbetssĂ€ttet med barnen och att lite fler Ă€n hĂ€lften tycker att de har tillrĂ€ckligt med kunskap för att arbeta med genus. Slutsatser som kunde dras frĂ„n resultaten frĂ„n enkĂ€ten Ă€r att pedagogernas kompetenser i de genusvetenskapliga begreppen Ă€r pĂ„ olika nivĂ„ och att de varierar vĂ€ldigt mycket. DĂ€rför drog jag den slutsatsen att det Ă€r dĂ€rför som det komplicerande och normkritiska arbetet inte anvĂ€nds i arbetet med genus i förskolan. ÄndĂ„ sĂ„ ansĂ„g flertalet av de pedagoger som inte arbetade med det komplicerande och normkritiska arbetet att de Ă€ndĂ„ hade tillrĂ€ckligt med kunskap i genus. Kompetens i ett Ă€mne gör att det Ă€r möjligt att ta ut svĂ€ngarna, att verkligen se hur barnen gör genus i barngruppen och att ifrĂ„gasĂ€tta normer i samhĂ€llet tillsammans med barnen

    9C Copyright Law Session. Fair Use

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    Transcriptomic profiling of 39 commonly-used neuroblastoma cell lines

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    Neuroblastoma cell lines are an important and cost-effective model used to study oncogenic drivers of the disease. While many of these cell lines have been previously characterized with SNP, methylation, and/or mRNA expression microarrays, there has not been an effort to comprehensively sequence these cell lines. Here, we present raw whole transcriptome data generated by RNA sequencing of 39 commonly-used neuroblastoma cell lines. These data can be used to perform differential expression analysis based on a genetic aberration or phenotype in neuroblastoma (e.g., MYCN ampliïŹcation status, ALK mutation status, chromosome arm 1p, 11q and/or 17q status, sensitivity to pharmacologic perturbation). Additionally, we designed this experiment to enable structural variant and/or long-noncoding RNA analysis across these cell lines. Finally, as more DNase/ATAC and histone/transcription factor ChIP sequencing is performed in these cell lines, our RNA-Seq data will be an important complement to inform transcriptional targets as well as regulatory (enhancer or repressor) elements in neuroblastoma

    Parameterized Supply Function Bidding: Equilibrium and Efficiency

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    We consider a model where a finite number of producers compete to meet an infinitely divisible but inelastic demand for a product. Each firm is characterized by a production cost that is convex in the output produced, and firms act as profit maximizers. We consider a uniform price market design that uses supply function bidding: firms declare the amount they would supply at any positive price, and a single price is chosen to clear the market. We are interested in evaluating the impact of price-anticipating behavior both on the allocative efficiency of the market and on the prices seen at equilibrium. We show that by restricting the strategy space of the firms to parameterized supply functions, we can provide upper bounds on both the inflation of aggregate cost at the Nash equilibrium relative to the socially optimal level, as well as the markup of the Nash equilibrium price above the competitive level: as long as N > 2 firms are competing, these quantities are both upper bounded by 1 + 1/(N − 2). This result holds even in the presence of asymmetric cost structure across firms. We also discuss several extensions, generalizations, and related issues.National Science Foundation (U.S.) (Graduate Research Fellowship)National Science Foundation (U.S.) (grant ECS-0312921

    Determining a minimum detection threshold in terminal restriction fragment length polymorphism analysis

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    Terminal restriction fragment length polymorphism (T-RFLP) analysis is a common technique used to characterize soil microbial diversity. The fidelity of this technique in accurately reporting diversity has not been thoroughly evaluated. Here we determine if rare fungal species can be reliably detected by T-RFLP analysis. Spores from three arbuscular mycorrhizal fungal species were each mixed at a range of concentrations (1%, 10%, 50%, and 100%) with Glomus irregulare to establish a minimum detection threshold. T-RFLP analysis was capable of detecting diagnostic peaks of rare taxa at concentrations as low as 1%. The relative proportion of the target taxa in the sample and DNA concentration influenced peak detection reliability. However, low concentrations produced small, inconsistent electropherogram peaks contributing to difficulty in differentiating true peaks from signal noise. The results of this experiment suggest T-RFLP is a reproducible and high fidelity procedure, which requires careful data interpretation in order to accurately characterize sample diversity

    Tuning π-Acceptor/σ-Donor Ratio of the 2-Isocyanoazulene Ligand: Non-Fluorinated Rival of Pentafluorophenyl Isocyanide and Trifluorovinyl Isocyanide Discovered

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    Isocyanoazulenes (CNAz) constitute a relatively new class of isocyanoarenes that offers rich structural and electronic diversification of the organic isocyanide ligand platform. This article considers a series of 2-isocyano-1,3-X2-azulene ligands (X = H, Me, CO2Et, Br, and CN) and the corresponding zero-valent complexes thereof, [(OC)5Cr(2-isocyano-1,3-X2-azulene)]. Air- and thermally stable, X-ray structurally characterized 2-isocyano-1,3-dimethylazulene may be viewed as a non-benzenoid aromatic congener of 2,6-dimethyphenyl isocyanide (2,6-xylyl isocyanide), a longtime “workhorse” aryl isocyanide ligand in coordination chemistry. Single crystal X-ray crystallographic {Cr–CNAz bond distances}, cyclic voltametric {E1/2(Cr0/1+)}, 13C NMR {ÎŽ(13CN), ÎŽ(13CO)}, UV-vis {dπ(Cr) → pπ*(CNAz) Metal-to-Ligand Charge Transfer}, and FTIR {ÎœN≡C, ÎœC≡O, kC≡O} analyses of the [(OC)5Cr(2-isocyano-1,3-X2-azulene)] complexes provided a multifaceted, quantitative assessment of the π-acceptor/σ-donor characteristics of the above five 2-isocyanoazulenes. In particular, the following inverse linear relationships were documented: ÎŽ(13COtrans) vs. ÎŽ(13CN), ÎŽ(13COcis) vs. ÎŽ(13CN), and ÎŽ(13COtrans) vs. kC≡O,trans force constant. Remarkably, the net electron withdrawing capability of the 2-isocyano-1,3-dicyanoazulene ligand rivals those of perfluorinated isocyanides CNC6F5 and CNC2F3
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