268 research outputs found

    FILLING THE GAPS: SHAPING LIGHTING EDUCATION FOR THE FUTURE:LIGHTING METROPOLIS WP6.1

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    Training and knowledge of lighting is an increasingly sought-after professional quality in Denmark and Sweden. However, technological development in the lighting field has been in recent years extremely rapid, not least in Scandinavia. This has led to a situation, where users, designers, specifiers, buyers and installers are often neither in possession, nor have access to, the knowledge about lighting that they need. The aim of the study is to map and analyze the existing offer and demand for competencies within lighting related fields. That is to say, the study has looked at the existing educational programs within a broad field of lighting and compared this ‘supply’ to the current ‘demand’ by local employers. The paper presents the results from a statistical analysis of data collected from a series of surveys, expert interviews and focus groups, involving more than 250 participants in Sweden and Denmark. Based on the findings, the paper presents recommendations for the design of educational curricula

    Treatment of Zygomatic Complex Fractures with Surgical or Nonsurgical Intervention:A Retrospective Study

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    Objective:Evaluate the 1-year treatment outcome of zygomatic complex fractures with surgical or nonsurgical intervention.Materials and Methods:One hundred and forty-two consecutive patients with a zygomatic complex fracture were enrolled. Sixty-eight patients underwent surgical intervention and 74 patients nonsurgical intervention. The 1-year examination evaluated cosmetic and functional outcome including malar symmetry, ocular motility, occlusion, mouth opening, neurosensory disturbances, and complications.Results:Forty-six patients allocated to surgical intervention responded to the 1-year follow-up examination. Satisfying facial contour and malar alignment was observed in 45 patients. All patients presented with identical position of the eye globe without enophthalmos and normal ocular movement. A habitual occlusion was seen in all patients with a mean interincisal mouth opening without pain of 49 mm. One patient presented with minor ectropion. Wound infection occurred in five patients. Persistent infraorbital neurosensory disturbance was described by 19 patients. The 1-year radiographic examination showed adequate fracture alignment in all patients with satisfying facial contour. However, dissimilar position of the orbital floor was seen in three patients having orbital reconstruction. None of the patients were re-operated or needed secondary correction of the zygomatic complex or orbital floor.Conclusion:Surgical intervention is an effective treatment modality of depressed zygomatic complex fractures, whereas a nonsurgical approach is often used for nondisplaced fractures. Most zygomatic complex fractures can be treated solely by an intraoral approach and rigid fixation at the zygomaticomaxillary buttress. Further exposure of the zygomaticofrontal junction or inferior orbital rim is necessary for severely displaced fractures, which require additional fixation.</jats:sec

    Effect of exenatide on the pharmacokinetics of a combination oral contraceptive in healthy women: an open-label, randomised, crossover trial

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    BACKGROUND: Consistent with its effect on gastric emptying, exenatide, an injectable treatment for type 2 diabetes, may slow the absorption rate of concomitantly administered oral drugs resulting in a decrease in maximum concentration (C(max)). This study evaluated the drug interaction potential of exenatide when administered adjunctively with oral contraceptives, given their potential concomitant use. METHODS: This trial evaluated the effect of exenatide co-administration on single- and multiple-dose pharmacokinetics of a combination oral contraceptive (ethinyl estradiol [EE] 30 μg, levonorgestrel [LV] 150 μg [Microgynon 30(®)]). Thirty-two healthy female subjects participated in an open-label, randomised, crossover trial with 3 treatment periods (oral contraceptive alone, 1 hour before exenatide, 30 minutes after exenatide). Subjects received a single dose of oral contraceptive on Day 8 of each period and QD doses on Days 10 through 28. During treatment periods of concomitant usage, exenatide was administered subcutaneously prior to morning and evening meals at 5 μg BID from Days 1 through 4 and at 10 μg BID from Days 5 through 22. Single- (Day 8) and multiple-dose (Day 22) pharmacokinetic profiles were assessed for each treatment period. RESULTS: Exenatide did not alter the bioavailability nor decrease daily trough concentrations for either oral contraceptive component. No substantive changes in oral contraceptive pharmacokinetics occurred when oral contraceptive was administered 1 hour before exenatide. Single-dose oral contraceptive administration 30 minutes after exenatide resulted in mean (90% CI) C(max )reductions of 46% (42-51%) and 41% (35-47%) for EE and LV, respectively. Repeated daily oral contraceptive administration 30 minutes after exenatide resulted in C(max )reductions of 45% (40-50%) and 27% (21-33%) for EE and LV, respectively. Peak oral contraceptive concentrations were delayed approximately 3 to 4 hours. Mild-to-moderate nausea and vomiting were the most common adverse events observed during the trial. CONCLUSIONS: The observed reduction in C(max )is likely of limited importance given the unaltered oral contraceptive bioavailability and trough concentrations; however, for oral medications that are dependent on threshold concentrations for efficacy, such as contraceptives and antibiotics, patients should be advised to take those drugs at least 1 hour before exenatide injection. TRIAL REGISTRATION: ClinicalTrials.gov: NCT00254800

    Effects of oil and oil burn residues on seabird feathers

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    It is well known, that in case of oil spill, seabirds are among the groups of animals most vulnerable. Even small amounts of oil can have lethal effects by destroying the waterproofing of their plumage, leading to loss of insulation and buoyancy. In the Arctic these impacts are intensified. To protect seabirds, a rapid removal of oil is crucial and in situ burning could be an efficient method. In the present work exposure effects of oil and burn residue in different doses was studied on seabird feathers from legally hunted Common eider (Somateria mollissima) by examining changes in total weight of the feather and damages on the microstructure (Amalgamation Index) of the feathers before and after exposure. The results of the experiments indicate that burn residues from in situ burning of an oil spill have similar or larger fouling and damaging effects on seabird feathers, as compared to fresh oil

    PREFERENCE FOR TOP- VS. SIDE-BINDING IN FLUORINATED ETHYLENE· · · CO2 COMPLEXES

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    The weakly bound complexes between 1-fluoroethylene (FE), 1,1-difluoroethylene (DFE), and 1,1,2-trifluoroethylene (TFE) and carbon dioxide have been investigated using reduced bandwidth chirped-pulse (CP) and resonant-cavity Fourier-transform microwave (FTMW) spectroscopy. In FE⋯\cdotsCO2_2, two distinct planar isomers are observed, corresponding to the CO2_2 interacting with the CHF end of the FE (side-binding) or roughly parallel to the C=C bond (top-binding). Both structures contain a C--H⋯\cdotsO contact between one FE hydrogen atom and CO2_2. In DFE⋯\cdotsCO2_2, only a top-binding configuration is possible, consistent with the observed structure. Finally, although both top- and side-binding orientations are possible for TFE⋯\cdotsCO2_2, only the side-binding conformation has been observed. The C--H⋯\cdotsO distances in the four species vary from 2.582.58 \AA\ to 2.732.73 \AA, while the observed F⋯\cdotsC distances are much more consistent, varying by only about 0.050.05 \AA\ across the series. Ab initio calculations at the MP2/6-311++G(2d,2p) level have provided exceptionally accurate estimates of the rotational constants of these CO2_2 complexes, although the energy ordering is, in several cases, inconsistent with the observed geometries

    Effects of a Protein Preload on Gastric Emptying, Glycemia, and Gut Hormones After a Carbohydrate Meal in Diet-Controlled Type 2 Diabetes

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    OBJECTIVE: We evaluated whether a whey preload could slow gastric emptying, stimulate incretin hormones, and attenuate postprandial glycemia in type 2 diabetes. RESEARCH DESIGN AND METHODS: Eight type 2 diabetic patients ingested 350 ml beef soup 30 min before a potato meal; 55 g whey was added to either the soup (whey preload) or potato (whey in meal) or no whey was given. RESULTS: Gastric emptying was slowest after the whey preload (P < 0.0005). The incremental area under the blood glucose curve was less after the whey preload and whey in meal than after no whey (P < 0.005). Plasma glucose-dependent insulinotropic polypeptide, insulin, and cholecystokinin concentrations were higher on both whey days than after no whey, whereas glucagon-like peptide 1 was greatest after the whey preload (P < 0.05). CONCLUSIONS: Whey protein consumed before a carbohydrate meal can stimulate insulin and incretin hormone secretion and slow gastric emptying, leading to marked reduction in postprandial glycemia in type 2 diabetes.Jing Ma, Julie E. Stevens, Kimberly Cukier, Anne F. Maddox, Judith M. Wishart, Karen L. Jones, Peter M. Clifton, Michael Horowitz, and Christopher K. Rayne
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