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  • 2005-2009  (25)
  • 2000-2004  (109)
  • 1920-1924  (13)
  • 1905-1909  (4)
  • 1
    Electronic Resource
    Electronic Resource
    The Role of Caring in the Teacher-Student Relationship for At-Risk Students (2001)
    Oxford, UK : Blackwell Publishing Ltd
    Sociological inquiry 71 (2001), S. 0 
    Details
    ISSN: 1475-682X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Sociology
    Notes: This study uses information from both teachers and students to explore how the perceptions of each other's investment in the relationship affects the productivity of the relationship. Using the National Longitudinal Study of 1988 (NELS), I analyze the conditions and academic consequences of students’investment in the relationship with teachers and school. I find that teachers’perceptions that the student puts forth academic effort and students’perceptions that teachers are caring are each weakly associated with mathematics achievement for most students. For students who are judged by their teachers as at risk of dropping out of high school, however, the value for math achievement of having teachers who care is substantial and mitigates against the negative effect of having been judged as at risk. The results suggest that social capital, as defined by a relationship that facilitates action, is especially high for at-risk students who feel their teachers are interested, expect them to succeed, listen to them, praise their effort, and care.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-682X.2001.tb01110.x
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  • 2
    Electronic Resource
    Electronic Resource
    A Cost–Effectiveness Analysis of a Hypothetical Catheter-Based Strategy for the Detection and Treatment of Vulnerable Coronary Plaques with Drug-Eluting Stents (2005)
    350 Main Street , Malden , MA 02148-5020 , USA , and P.O. Box 1354, Garsington Road , Oxford OX4 2DQ , UK . : Blackwell Science Inc
    Journal of interventional cardiology 18 (2005), S. 0 
    Details
    ISSN: 1540-8183
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aim: Extensive efforts are underway to develop methods for the detection and treatment of vulnerable/high-risk coronary artery plaques. We utilized decision analysis to evaluate the hypothetical clinical benefits and cost–effectiveness of a catheter-based strategy. Methods and Results: Currently, stenotic coronary plaques are treated without regard to vulnerability. In a new strategy, vulnerable coronary plaques are detected with a catheter-based test and treated with a drug-eluting stent, regardless of degree of stenosis. A Markov-decision model was developed to compare the new strategy with current practice. Monte Carlo simulations were performed from a societal perspective, costs were converted to year 2003 U.S. dollars, and future costs and outcomes were discounted at 3%. Sensitivity analyses were performed to evaluate the effect of assumptions on variables such as the prevalence of vulnerable plaques and treatment effect. In 60-year-old male patients with coronary stenoses the new strategy would be less expensive and more effective than current practice ($37,045 vs $38,257 and 10.23 vs 9.86 quality-adjusted life years (QALYs), respectively). The benefits of the new strategy were robust in sensitivity analyses (e.g., if the prevalence of vulnerable plaques in this patient group was 50% or more and the sensitivity and specificity of the new test were at least 0.80). Conclusion: In selected patients with coronary artery stenosis, the detection of vulnerable plaques with a catheter-based test followed by their treatment with a drug-eluting stent could be a less expensive and more effective strategy than current practice. If applied to 1 million such patients in the United States undergoing catheterization, the new strategy would add 370,000 QALYs and save $1.2 billion dollars per year.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-8183.2005.00074.x
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  • 3
    Electronic Resource
    Electronic Resource
    Myocardial Ischemia: Atypical Presentation of an Atrial Septal Defect in Childhood (2005)
    350 Main Street , Malden , MA 02148-5020 , USA , and P.O. Box 1354, Garsington Road , Oxford OX4 2DQ , UK . : Blackwell Science Inc
    Journal of interventional cardiology 18 (2005), S. 0 
    Details
    ISSN: 1540-8183
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We describe a 17-year-old male with a secundum atrial septal defect (ASD), who presented with acute myocardial ischemia. The presumptive diagnosis of a paradoxical coronary embolism was based on the demonstration of a large ASD in conjunction with normal coronary arteries, a negative endomyocardial biopsy, and a negative drug screen. After percutaneous closure with an Amplatzer device, there has been no recurrence for 2 years.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-8183.2005.00077.x
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  • 4
    Electronic Resource
    Electronic Resource
    Detection of High-Risk Atherosclerotic Coronary Plaques by Intravascular Spectroscopy (2003)
    350 Main Street , Malden , MA 02148 , USA . : Blackwell Science Inc
    Journal of interventional cardiology 16 (2003), S. 0 
    Details
    ISSN: 1540-8183
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Multiple technologies are under development to identify plaque composition and vulnerability. This review article is intended to provide basic knowledge to the interventional cardiologist and the clinician about spectroscopy. The concept of light, the wavelength unit and the electromagnetic spectrum are discussed. Different types of spectra analysis including nuclear magnetic resonance, Raman, fluorescence and diffuse reflectance near-infrared spectroscopy are then carefully reviewed. Experimental data to identify atherosclerotic plaque composition for each of these techniques is provided. Potential benefits and challenges are addressed. Finally, diffuse reflectance near-infrared spectroscopy is discussed in more detail as a promising technique to characterize plaque vulnerability in humans. (J Interven Cardiol 2003;16:243–252)
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-0854.2003.8040.x
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  • 5
    Electronic Resource
    Electronic Resource
    Decreased Protein Phosphatase 2A Activity in Hippocampal Long-Term Potentiation (2000)
    Oxford UK : Blackwell Science Ltd
    Journal of neurochemistry 74 (2000), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Using autophosphorylated Ca2+/calmodulin-dependent protein kinase II (CaM kinase II) as substrate, we now find that long-term potentian (LTP) induction and maintenance are also associated with a significant decrease in calyculin A-sensitive protein phosphatase (protein phosphatase 2A) activity, without changes in Mg2+-dependent protein phosphatase (protein phosphatase 2C) activity. This decrease in protein phosphatase 2A activity was prevented when LTP induction was inhibited by treatment with calmidazolium or D-2-amino-5-phosphonopentanoic acid. In addition, the application of high-frequency stimulation to 32P-labeled hippocampal slices resulted in increases in the phosphorylation of a 55-kDa protein immunoprecipitated with anti-phosphatase 2A antibodies. Use of a specific antibody revealed that the 55-kDa protein is the B′α subunit of protein phosphatase 2A. Following purification of brain protein phosphatase 2A, the B′α subunit was phosphorylated by CaM kinase II, an event that led to the reduction of protein phosphatase 2A activity. These results suggest that the decreased activity in protein phosphatase 2A following LTP induction contributes to the maintenance of constitutively active CaM kinase II and to the long-lasting increase in phosphorylation of synaptic components implicated in LTP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1471-4159.2000.740807.x
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  • 6
    Electronic Resource
    Electronic Resource
    Properties of high κ gate dielectrics Gd2O3 and Y2O3 for Si (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 3920-3927 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present the materials growth and properties of both epitaxial and amorphous films of Gd2O3 (κ=14) and Y2O3 (κ=18) as the alternative gate dielectrics for Si. The rare earth oxide films were prepared by ultrahigh vacuum vapor deposition from an oxide source. The use of vicinal Si (100) substrates is key to the growth of (110) oriented, single domain films in the Mn2O3 structure. Compared to SiO2 gate oxide, the crystalline Gd2O3 and Y2O3 oxide films show a reduction of electrical leakage at 1 V by four orders of magnitude over an equivalent oxide thickness range of 10–20 Å. The leakage of amorphous Y2O3 films is about six orders of magnitude better than SiO2 due to a smooth morphology and abrupt interface with Si. The absence of SiO2 segregation at the dielectric/Si interface is established from infrared absorption spectroscopy and scanning transmission electron microscopy. The amorphous Gd2O3 and Y2O3 films withstand the high temperature anneals to 850 °C and remain electrically and chemically intact. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1352688
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  • 7
    Electronic Resource
    Electronic Resource
    Diagnosing a school board's interactional trouble: theorizing problem formulating (2001)
    Oxford, UK : Blackwell Publishing Ltd
    Communication theory 11 (2001), S. 0 
    Details
    ISSN: 1468-2885
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Media Resources and Communication Sciences, Journalism , Psychology
    Notes: Communication, Craig (1989, 1995a, 1995b; Craig & Tracy, 1995) argues, is and should be a practical discipline: a field whose scholarly work would be helpful in improving the communicative practices it studies. Following explication of Craig's notions of practical theory and communication as a practical discipline, this paper analyzes the interactional trouble in one community's school board meetings. Drawing upon 3 theories relevant to this school board site - proposals about argumentative processes, rhetorical action, and moral conflict - we show how each theoretical lens leads to a different diagnosis of the community's ‘school board problem’. The second part of the paper inverts the analytic focus. Based on study of this school board's troubles, we critique the usefulness of the 3 theories. In the conclusion, we reflect about the often-invisible task of labeling the problem that a group is facing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1468-2885.2001.tb00234.x
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  • 8
    Electronic Resource
    Electronic Resource
    Comparative study between the viscoelastic behaviors of different lipid nanoparticle formulations (2005)
    Oxford, UK : Blackwell Science Ltd
    International journal of cosmetic science 27 (2005), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Application of drug substances to the skin for systemic absorption or action in a particular layer of the skin is a rather old approach. However, over the last years it has received much more attention, as a consequence of the development of new membrane-moderated and matrix reservoir devices. As new reservoir systems, solid lipid nanoparticles (SLN™) and nanostructured lipid carriers (NLC™) have been successfully tested for dermal application of different physicochemical substances. The knowledge obtained from rheological investigations of these systems may be highly useful for the characterization of the newly developed topical formulation. In the present study, an oscillation frequency sweep test was used for the evaluation of storage modulus (G_), loss modulus (G_), and complex viscosity (_*) of 12 different SLN and NLC formulations, over a frequency range from 0 to 10 Hz. The lipidic aqueous dispersions were prepared using three different solid lipids (Softisan_138, Compritol_888 and stearyl alcohol) as matrix material. Miglyol_812, tocopherol, sunflower oil and long-chain triacylglycerols were the chosen liquid lipids for NLC preparation. The objective of the present work was to investigate the effect of these different liquid lipids on the rheological properties of aqueous dispersions of NLC as model systems. It was found that the liquid oil component of the formulation has a strong influence on the viscoelastic parameters, which are dependent on the particle size, zeta potential and crystallinity of the lipid particles, as well as on the solid lipid used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.2004.00252_4.x
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  • 9
    Electronic Resource
    Electronic Resource
    Between Home and Host Country: Multinationals and Employment Relations in Europe (2001)
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Industrial relations journal 32 (2001), S. 0 
    Details
    ISSN: 1468-2338
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1468-2338.00210
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  • 10
    Electronic Resource
    Electronic Resource
    Computerized electronic temperature control system for thermal efficiency during baking in food research (2001)
    Oxford, UK : Blackwell Science Ltd
    International journal of consumer studies 25 (2001), S. 0 
    Details
    ISSN: 1470-6431
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: A more sophisticated temperature control system than the capillary thermostat in conventional electric ovens is necessary for laboratory research on foods. The aim of the study was to develop a computerized temperature control system (CTCS) for conventional electric ovens and to determine whether the CTCS could effect comparable and consistent results in two ovens with regard to oven and product characteristics of baked products. No significant differences were found between the two ovens with regard to average oven temperature, texture and height of products. In most instances there were also no significant differences between the ovens with regard to instrumental colour measurement and moisture loss. The regression results also illustrated the effectiveness of the CTCS, i.e. that an increase in set oven temperature of 1°C has a significant effect on specific oven and product characteristics. The CTCS therefore significantly improved the reproducibility of quality characteristics of baked products. Thus, more consistent and repeatable results can be obtained to improve the reliability of consumer-driven food research.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1470-6431.2001.00145.x
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