240 research outputs found
Beyond the Book project: quantitative data and collateral documents for One Book, One Chicago
Quantitative data and collateral documents Chicago portion of the AHRC-funded project āBeyond the Book: Mass Reading Events and Contemporary Cultures of Reading in the UK, USA and Canadaā, (2005-2008, grant number: 112166), a three-year interdisciplinary project. The study researched a selection of 21st-century reading events which employ mass media (TV and radio) and city-wide reading projects which employ the āOne Book, One Communityā model.
The primary aims of the transnational study were to investigate how mass reading events configure contemporary practices of reading and the cultural meanings of reading at local, national and international levels; to explain the uses and complexities of reading communities in different locations; to identify and analyse trans-national trends and differences in contemporary reading cultures and reading practices; and, to critique the popular function of literary fiction.
The file contains the data collected from a series of an online survey of readers in Chicago. Convenience sampling was employed. The survey was advertised through adverts in newspapers, on-line advertisements; flyers and bookmarks distributed through public library systems and cultural centres; via email through the research teamās formal and informal social and professional networks. The data includes reading choice, habits and practices; participation in broadcast and community book programming; and, basic demographic information (anonymised). The statistical data is deposited in .sav .csv and .por formats.
Collateral material includes: Codebook and the Survey.
Content was created between ca. 2006-10-13 and 2008-08-25. Content was saved 2008-10-31.
http://www.beyondthebookproject.org
Padilla v. Kentucky: The Effect of Plea Colloquy Warnings on Defendants\u27 Ability To Bring Successful Padilla Claims
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Democracy, if You Can Afford It: How Financial Conditions Are Undermining the Right to Vote
A Tale of Two Sylamores: Understanding Relationships Among Land Use, Nutrients, and Aquatic Communities Across a Subsidy-Stress Gradient
Agricultural land use is known to degrade aquatic systems with high inputs of nutrients, sediments, and pesticides. Increased nutrients can lead to increased algal growth and thus possible hypoxic conditions in slow moving water, while increased sediment loads have been shown to obstruct light and reduce substrate stability. These conditions negatively impact primary producers, macroinvertebrates, and fish. However, small-scale changes in land use can subsidize an aquatic ecosystem instead, where an increase in nutrients allows nutrient-limited biota to flourish, and minor increases in sedimentation may help support populations of collector-filterers. The stimulation in performance caused by small disturbances is part of the subsidy-stress gradient, where increasing perturbation subsidizes an ecosystem until a certain threshold is reached, at which a decline in performance and increased variability starts to occur. The North and South Sylamore watersheds in north Arkansas provide a useful template to investigate the subsidy-stress gradient in relation to land use. North Sylamore flows through the Ozark National Forest and has a heavily forested catchment, while South Sylamore flows through mostly private land, some of which is pasture (23%). Physicochemical, macroinvertebrate, and fish data were collected from multiple sites within each watershed to determine if South Sylamore is exhibiting a response to pasture/agriculture characteristic of a subsidy-stress gradient. Sites within South Sylamore had significantly higher nitrate levels, larger macroinvertebrate populations dominated by collector-filterers, and greater abundance of algivorous fish, suggesting South Sylamore may be subsidized by the surrounding pastoral lands. However, South Sylamore also had a significantly lower proportional abundance of sensitive macroinvertebrate taxa and more unique tolerant fish taxa, suggesting South Sylamore is experiencing stress as well. Habitat quality of South Sylamore could be improved by restoration of trees within the riparian zone. Monitoring aquatic systems for subsidy-stress responses can inform restoration/management decisions and guide intervention prior to watersheds and aquatic communities becoming overly stressed
What drives health-care spending priorities? An international survey of health-care professionals
The authors set out to compare spending priorities for health care, across a selection of largely middle-income countries, through a survey of current and future decision makers
Upregulation of Phagocyte-Derived Catecholamines Augments the Acute Inflammatory Response
Following our recent report that phagocytic cells (neutrophils, PMNs, and macrophages) are newly discovered sources of catecholamines, we now show that both epinephrine and norepinephrine directly activate NFĪŗB in macrophages, causing enhanced release of proinflammatory cytokines (TNFĪ±, IL-1Ī², IL-6). Both adrenal-intact (AD+) and adrenalectomized (ADX) rodents were used, because ADX animals had greatly enhanced catecholamine release from phagocytes, facilitating our efforts to understand the role of catecholamines released from phagocytes. Phagocytes isolated from adrenalectomized rats displayed enhanced expression of tyrosine-hydroxylase and dopamine-Ī²-hydroxylase, two key enzymes for catecholamine production and exhibited higher baseline secretion of norepinephrine and epinephrine. The effects of upregulation of phagocyte-derived catecholamines were investigated in two models of acute lung injury (ALI). Increased levels of phagocyte-derived catecholamines were associated with intensification of the acute inflammatory response, as assessed by increased plasma leak of albumin, enhanced myeloperoxidase content in lungs, augmented levels of proinflammatory mediators in bronchoalveolar lavage fluids, and elevated expression of pulmonary ICAM-1 and VCAM-1. In adrenalectomized rats, development of ALI was enhanced and related to Ī±2-adrenoceptors engagement but not to involvement of mineralocorticoid or glucocorticoid receptors. Collectively, these data demonstrate that catecholamines are potent inflammatory activators of macrophages, upregulating NFĪŗB and further downstream cytokine production of these cells. In adrenalectomized animals, which have been used to further assess the role of catecholamines, there appears to be a compensatory increase in catecholamine generating enzymes and catecholamines in macrophages, resulting in amplification of the acute inflammatory response via engagement of Ī±2-adrenoceptors
Functions of the complement components C3 and C5 during sepsis
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154678/1/fsb2fj08110595.pd
Pretargeted PET Imaging with a TCO-Conjugated Anti-CD44v6 Chimeric mAb U36 and [Zr-89]Zr-DFO-PEG(5)-Tz
The recent advances in the production of engineered antibodies have facilitated the development and application of tailored, target-specific antibodies. Positron emission tomography (PET) of these antibody-based drug candidates can help to better understand their in vivo behavior. In this study, we report an in vivo proof-ofconcept pretargeted immuno-PET study where we compare a pretargeting vs targeted approach using a new Zr-89-labeled tetrazine as a bio-orthogonal ligand in an inverse electron demand Diels-Alder (IEDDA) in vivo click reaction. A CD44v6-selective chimeric monoclonal U36 was selected as the targeting antibody because it has potential in immuno-PET imaging of head-and-neck squamous cell carcinoma (HNSCC). Zirconium-89 (t(1/2) = 78.41 h) was selected as the radionuclide of choice to be able to make a head-to-head comparison of the pretargeted and targeted approaches. [Zr-89]Zr-DFO-PEG S -Tz ([Zr-89]Zr-3) was synthesized and used in pretargeted PET imaging of HNSCC xenografts (VU-SCC-OE) at 24 and 48 h after administration of a trans-cyclooctene (TCO)-functionalized U36. The pretargeted approach resulted in lower absolute tumor uptake than the targeted approach (1.5 +/- 0.2 vs 17.1 +/- 3.0% ID/g at 72 h p.i. U36) but with comparable tumor-to-non-target tissue ratios and significantly lower absorbed doses. In conclusion, anti-CD44v6 monoclonal antibody U36 was successfully used for Zr-89-immuno-PET imaging of HNSCC xenograft tumors using both a targeted and pretargeted approach. The results not only support the utility of the pretargeted approach in immuno-PET imaging but also demonstrate the challenges in achieving optimal in vivo IEDDA reaction efficiencies in relation to antibody pharmacokinetics.Peer reviewe
Cross-Talk between TLR4 and FcĪ³ReceptorIII (CD16) Pathways
Pathogen-pattern-recognition by Toll-like receptors (TLRs) and pathogen clearance after immune complex formation via engagement with Fc receptors (FcRs) represent central mechanisms that trigger the immune and inflammatory responses. In the present study, a linkage between TLR4 and FcĪ³R was evaluated in vitro and in vivo. Most strikingly, in vitro activation of phagocytes by IgG immune complexes (IgGIC) resulted in an association of TLR4 with FcĪ³RIII (CD16) based on co-immunoprecipitation analyses. Neutrophils and macrophages from TLR4 mutant (mut) mice were unresponsive to either lipopolysaccharide (LPS) or IgGIC in vitro, as determined by cytokine production. This phenomenon was accompanied by the inability to phosphorylate tyrosine residues within immunoreceptor tyrosine-based activation motifs (ITAMs) of the FcRĪ³-subunit. To transfer these findings in vivo, two different models of acute lung injury (ALI) induced by intratracheal administration of either LPS or IgGIC were employed. As expected, LPS-induced ALI was abolished in TLR4 mut and TLR4ā/ā mice. Unexpectedly, TLR4 mut and TLR4ā/ā mice were also resistant to development of ALI following IgGIC deposition in the lungs. In conclusion, our findings suggest that TLR4 and FcĪ³RIII pathways are structurally and functionally connected at the receptor level and that TLR4 is indispensable for FcĪ³RIII signaling via FcRĪ³-subunit activation
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