175 research outputs found

    Community-centric virtual government: Citizen interaction in the e-spaces

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    Virtual Government, exemplified by online service delivery, is a reality. The focus is now shifting towards developing citizen interaction in the web space. This paper provides a new conceptual model, applicable to all levels of government from federal to local, to support this shift. In doing so, it seeks to clarify the roles of e- government and e-governance in implementing the goals of virtual government. The concept of the e-space is introduced and proposed as the basis for assessment of the outcomes and outputs linked to these goals

    Taking shape: Implementing citizen-centric local digital government in Western Australia

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    Digital government, encompassing output-focused e-government (delivering services online) and outcomes-focused e-governance (developing ICT-enabled citizen interaction and participation) has been proposed as the next step in online interaction between government and its citizens. Local government is still coming to grips with providing a mechanism for implementation of both facets of digital government, particularly those of e-governance. The Local Digital Government Framework (LDGF) was developed in this study to incorporate the citizen-centric focus of e-governance, facilitating the move from the organisational, New Public Managementbased focus of e-government. The LDGF extends existing frameworks, providing continuity in the literature. It comprises a new conceptual model of Citizen-Centric Digital Government (CCDG) and a new ICTenabled management paradigm of Cybercentric Management (CM). Survey, website assessment and interview research strategies developed in this study, based on the LDGF, have validated its use as a benchmarking framework for the level of implementation of local digital government in Western Australia

    Philosophy of Data (PoD) and its Importance to the Discipline of Information Systems

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    In this document, we explore the Philosophy of Data (PoD) and its roots amongst other disciplines. The Philosophy of Data seeks to understand the nature of data through experimental philosophy. In order to understand the many different ontologies of data, information, and knowledge out there, this paper will describe part of the problem space in terms of other disciplines and make an argument for the establishment of this new philosophical field. Furthermore, we will show how the PoD is very important to IS scholars and practitioners

    Pseudomonas Aeruginosa Reduces Vx-809 Stimulated F508del-Cftr Chloride Secretion by Airway Epithelial Cells

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    Background: P. aeruginosa is an opportunistic pathogen that chronically infects the lungs of 85% of adult patients with Cystic Fibrosis (CF). Previously, we demonstrated that P. aeruginosa reduced wt-CFTR Cl secretion by airway epithelial cells. Recently, a new investigational drug VX-809 has been shown to increase F508del-CFTR Cl secretion in human bronchial epithelial (HBE) cells, and, in combination with VX-770, to increase FEV1 (forced expiratory volume in 1 second) by an average of 3-5% in CF patients homozygous for the F508del-CFTR mutation. We propose that P. aeruginosa infection of CF lungs reduces VX-809 + VX-770- stimulated F508del-CFTR Cl secretion, and thereby reduces the clinical efficacy of VX-809 + VX-770. Methods and Results: F508del-CFBE cells and primary cultures of CF-HBE cells (F508del/F508del) were exposed to VX-809 alone or a combination of VX-809 + VX-770 for 48 hours and the effect of P. aeruginosa on F508del-CFTR Cl secretion was measured in Ussing chambers. The effect of VX-809 on F508del-CFTR abundance was measured by cell surface biotinylation and western blot analysis. PAO1, PA14, PAK and 6 clinical isolates of P. aeruginosa (3 mucoid and 3 non-mucoid) significantly reduced drug stimulated F508del-CFTR Cl secretion, and plasma membrane F508del-CFTR. Conclusion: The observation that P. aeruginosa reduces VX-809 and VX-809 + VX-770 stimulated F508del CFTR Cl secretion may explain, in part, why VX-809 + VX-770 has modest efficacy in clinical trials

    Volunteer mentors as informal educators in a youth physical activity program

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    This discussion reports data from a 4-year longitudinal evaluation of a project from the United Kingdom. The project focused on outdoor activities as a vehicle for enhancing the personal and social development of disaffected youth with the researchers specifically examining the role played by volunteer learning mentors. Following a summary of relevant literature and an overview of the project design and evaluation strategy, data are reported on the impact and effectiveness of these mentors. The findings suggest the potential for mentors to function as informal educators in such youth programs. However, a lack of preparation and the considerable challenges faced in establishing and maintaining mentoring relationships with young people in schools can restrict their impact. It is argued that similar future initiatives would benefit from greater pre-planning and an improved understanding of how mentors and other youth professionals can work with each other. © 2010 Taylor & Francis

    Polymorphisms of the Flavin containing monooxygenase 3 (FMO3) gene do not predispose to essential hypertension in Caucasians.

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    BACKGROUND: The recessive disorder trimethylaminuria is caused by defects in the FMO3 gene, and may be associated with hypertension. We investigated whether common polymorphisms of the FMO3 gene confer an increased risk for elevated blood pressure and/or essential hypertension. METHODS: FMO3 genotypes (E158K, V257M, E308G) were determined in 387 healthy subjects with ambulatory systolic and diastolic blood pressure measurements, and in a cardiovascular disease population of 1649 individuals, 691(41.9%) of whom had a history of hypertension requiring drug treatment. Haplotypes were determined and their distribution noted. RESULTS: There was no statistically significant association found between any of the 4 common haplotypes and daytime systolic blood pressure in the healthy population (p = 0.65). Neither was a statistically significant association found between the 4 common haplotypes and hypertension status among the cardiovascular disease patients (p = 0.80). CONCLUSION: These results suggest that the variants in the FMO3 gene do not predispose to essential hypertension in this population

    The pseudomonas aeruginosa secreted protein PA2934 decreases apical membrane expression of the cystic fibrosis transmembrane conductance regulator

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    We previously reported that Pseudomonas aeruginosa PA14 secretes a protein that can reduce the apical membrane expression of the cystic fibrosis transmembrane conductance regulator (CFTR) protein. Here we report that we have used a proteomic approach to identify this secreted protein as PA2394, and we have named the gene cif, for CFTR inhibitory factor. We demonstrate that Cif is a secreted protein and is found associated with outer membrane-derived vesicles. Expression of Cif in Escherichia coli and purification of the C-terminal six-His-tagged Cif protein showed that Cif is necessary and sufficient to mediate the reduction in apical membrane expression of CFTR and a concomitant reduction in CFTR-mediated Cl&minus; ion secretion. Cif demonstrates epoxide hydrolase activity in vitro and requires a highly conserved histidine residue identified in &alpha;/&beta; hydrolase family enzymes to catalyze this reaction. Mutating this histidine residue also abolishes the ability of Cif to reduce apical membrane CFTR expression. Finally, we demonstrate that the cif gene is expressed in the cystic fibrosis (CF) lung and that nonmucoid isolates of P. aeruginosa show greater expression of the gene than do mucoid isolates. We propose a model in which the Cif-mediated decrease in apical membrane expression of CFTR by environmental isolates of P. aeruginosa facilitates the colonization of the CF lung by this microbe. <br /

    Anr and Its Activation by PlcH Activity in Pseudomonas aeruginosa Host Colonization and Virulence

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    Pseudomonas aeruginosa hemolytic phospholipase C (PlcH) degrades phosphatidylcholine (PC), an abundant lipid in cell membranes and lung surfactant. A ΔplcHR mutant, known to be defective in virulence in animal models, was less able to colonize epithelial cell monolayers and was defective in biofilm formation on plastic when grown in lung surfactant. Microarray analyses found that strains defective in PlcH production had lower levels of Anr-regulated transcripts than the wild type. PC degradation stimulated the Anr regulon in an Anr-dependent manner under conditions where Anr activity was submaximal because of the presence of oxygen. Two PC catabolites, choline and glycine betaine (GB), were sufficient to stimulate Anr activity, and their catabolism was required for Anr activation. The addition of choline or GB to glucose-containing medium did not alter Anr protein levels, growth rates, or respiratory activity, and Anr activation could not be attributed to the osmoprotectant functions of GB. The Δanr mutant was defective in virulence in a mouse pneumonia model. Several lines of evidence indicate that Anr is important for the colonization of biotic and abiotic surfaces in both P. aeruginosa PAO1 and PA14 and that increases in Anr activity resulted in enhanced biofilm formation. Our data suggest that PlcH activity promotes Anr activity in oxic environments and that Anr activity contributes to virulence, even in the acute infection phase, where low oxygen tensions are not expected. This finding highlights the relationships among in vivo bacterial metabolism, the activity of the oxygen-sensitive regulator Anr, and virulence

    The Relationship between Maximal Urethral Closure Pressure and Functional Urethral Length in Anterior Vaginal Wall Prolapse Patients According to Stage and Age

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    MUCP (Maximal urethral closure pressure) is known to be increased in patients with vaginal wall prolapse due to the mechanical obstruction of the urethra. However, urethral function following reduction has not yet been completely elucidated. Predicting postoperative urethral function may provide patients with important, additional information prior to surgery. Thus, this study was performed to evaluate the relationship between MUCP and functional urethral length (FUL) according to stage and age in anterior vaginal wall prolapse patients. 139 patients diagnosed with anterior vaginal wall prolapse at Yonsei University Medical College (YUMC) from March 1999 to May 2003 who had underwent urethral pressure profilometry following reduction were included in this study. The stage of pelvic organ prolapse (POP) was determined according to the dependent portion of the anterior vaginal wall (Aa, Ba). (By International Continence Society's POP Quantification system) Patients were divided into one of four age groups: patients in their 40s (n=13), 50s (n=53), 60s (n=54), and 70 and over (n=16). No difference in MUCP was found between the age groups. The FUL of patients in their 40s was shorter than that of patient's in their 50s and 60s. Patients were also divided into stages: stage II (n=35), stage III (n=76), and stage IV (n=25). No significant difference in MUCP was found according to stage and FUL. However, a significant difference was noted between stage III and IV as stage IV was longer. Anterior vaginal wall prolapse is known to affect urethral function due to prolapse itself, but according to our study, prolapse itself did not alter urethral function. This suggests that, regardless of age and stage, prolapse corrective surgery does not affect the urethral function
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