224 research outputs found

    Playing Music as a Nursing Intervention to Reduce Distress in Neonatal and Pediatric Acute Care Patients: A Literature Review

    Get PDF
    Pediatric and neonatal patients are especially vulnerable to suffering from distress. This literature review identifies research which applies passive music listening to distressed neonatal and pediatric acute care patients. Databases searched to find relevant studies include CINAHL plus with full text, MEDLINE, Alt HealthWatch, APA PsycArticles, and APA PsycInfo from EBSCOhost. Six studies were identified to meet search criteria. The studies that supported music listening with the neonatal and pediatric populations had a positive effect in reducing distress levels. Additional research is warranted to further validate these findings. Music listening with neonatal and pediatric patients is a simple, cost-effective intervention that nurses can implement at the bedside

    Data Processing and Image Enhancement of GPR Surveys of Roman Villas in Austria

    Get PDF
    Introduction The quality of ground penetrating radar data can suffer from many different sources of noise. Some of these sources are varying distances of the antennas to the ground due to rough surfaces, different surface conditions (e.g. compression due to tractor tracks), external electromagnetic fields and instrumental noise and instabilities (Seren, 2007). Analyses of recorded raw data and knowledge of the source of noise lead to specialised processing methods to improve the signal-to-noi..

    Salivary cortisol response to ACTH stimulation is a reliable alternative to serum cortisol in evaluating hypoadrenalism

    Get PDF
    Context The serum total cortisol response to the ACTH stimulation test is widely used to assess adrenocortical function but is affected by changes in cortisol-binding globulin (CBG) concentration. Salivary cortisol reflects free cortisol concentrations and may offer a reliable alternative. Objectives 1: To establish the salivary cortisol response to ACTH stimulation in healthy volunteers and patients with altered CBG concentrations. 2. To evaluate the performance of a lower reference limit (LRL) determined in healthy volunteers in patients with suspected hypoadrenalism (SH-patients). Design A 250 µg-ACTH stimulation test was undertaken in 139 healthy volunteers, 24 women taking an estradiol-containing oral contraceptive pill (OCP-females), 10 patients with low serum protein concentration (LP-patients) and 30 SH-patients. Salivary cortisol was measured by liquid chromatography-tandem mass spectrometry. Mean and LRL of the 30-minute salivary cortisol response (mean - 1.96 standard deviation) were derived from log-transformed concentrations. The LRL was applied as a diagnostic cut-off in SH-patients, with comparison to the serum response. Results Mean CBG concentrations [range] were 58 [42-81] mg/L, 64 [43-95] mg/L, 41 [28-60] mg/L and 116 [84-159] mg/L in males, females, LP-patients and OCP-females, respectively. The mean 30-minute salivary cortisol concentration was 19.3 [2.5th-97.5th percentile 10.3-36.2] nmol/l in healthy volunteers. Corresponding values were not different in OCP-females (19.7 [9.5-41.2] nmol/l; p = 0.59) or LP-patients (19.0 [7.7-46.9] nmol/l; p = 0.97). Overall diagnostic agreement between salivary and serum responses in SH-patients was 79%. Conclusions Salivary cortisol response to ACTH stimulation offers a reliable alternative to serum and may be especially useful in conditions of altered CBG concentration

    Sagittal joint spaces of the temporomandibular joint: Systematic review and meta-analysis

    Get PDF
    Introduction: The joint space measurements of the temporomandibular joint have been used to determine the condyle position variation. Therefore, the aim of this study is to perform a systematic review and meta-analysis on the coronal joint spaces measurements of the temporomandibular joint. Materials and Methods: An electronic database search was performed with the terms “condylar position”; “joint space”AND”TMJ”. Inclusionary criteria included: tomographic 3D imaging of the TMJ, presentation of at least two joint space measurements on the coronal plane. Exclusionary criteria were: mandibular fractures, animal studies, surgery, presence of genetic or chronic diseases, case reports, opinion or debate articles or unpublished material. The risk of bias of each study was judged as high, moderate or low according to the “Cochrane risk of bias tool”. The values used in the meta-analysis were the medial, superior and lateral joint space measurements and their differences between the right and left joint. Results: From the initial search 2706 articles were retrieved. After excluding the duplicates and all the studies that did not match the eligibility criteria 4 articles classified for final review. All the retrieved articles were judged as low level of evidence. All of the reviewed studies were included in the meta-analysis concluding that the mean coronal joint space values were: medial joint space 2.94 mm, superior 2.55 mm and lateral 2.16 mm. Conclusions: the analysis also showed high levels of heterogeneity. Right and left comparison did not show statistically significant differences

    Consequences of cathepsin C inactivation for membrane exposure of proteinase 3, the target antigen in autoimmune vasculitis

    Get PDF
    Membrane-bound proteinase 3 (PR3(m)) is the main target antigen of anti-neutrophil cytoplasmic autoantibodies (ANCA) in granulomatosis with polyangiitis, a systemic small-vessel vasculitis. Binding of ANCA to PR3(m) triggers neutrophil activation with the secretion of enzymatically active PR3 and related neutrophil serine proteases, thereby contributing to vascular damage. PR3 and related proteases are activated from pro-forms by the lysosomal cysteine protease cathepsin C (CatC) during neutrophil maturation. We hypothesized that pharmacological inhibition of CatC provides an effective measure to reduce PR3(m) and therefore has implications as a novel therapeutic approach in granulomatosis with polyangiitis. We first studied neutrophilic PR3 from 24 patients with Papillon-Lefevre syndrome (PLS), a genetic form of CatC deficiency. PLS neutrophil lysates showed a largely reduced but still detectable (0.5-4%) PR3 activity when compared with healthy control cells. Despite extremely low levels of cellular PR3, the amount of constitutive PR3(m) expressed on the surface of quiescent neutrophils and the typical bimodal membrane distribution pattern were similar to what was observed in healthy neutrophils. However, following cell activation, there was no significant increase in the total amount of PR3(m) on PLS neutrophils, whereas the total amount of PR3(m) on healthy neutrophils was significantly increased. We then explored the effect of pharmacological CatC inhibition on PR3 stability in normal neutrophils using a potent cell-permeable CatC inhibitor and a CD34(+) hematopoietic stem cell model. Human CD34(+) hematopoietic stem cells were treated with the inhibitor during neutrophil differentiation over 10 days. We observed strong reductions in PR3(m), cellular PR3 protein, and proteolytic PR3 activity, whereas neutrophil differentiation was not compromised

    Does type of hospital ownership influence physicians' daily work schedules? An observational real-time study in German hospital departments

    Get PDF
    Background: During the last two decades the German hospital sector has been engaged in a constant process of transformation. One obvious sign of this is the growing amount of hospital privatization. To date, most research studies have focused on the effects of privatization regarding financial outcomes and quality of care, leaving important organizational issues unexplored. Yet little attention has been devoted to the effects of privatization on physicians' working routines. The aim of this observational real-time study is to deliver exact data about physicians' work at hospitals of different ownership. By analysing working hours, further impacts of hospital privatization can be assessed and areas of improvement identified. Methods: Observations were made by shadowing 100 physicians working in private, for-profit or non-profit as well as public hospital departments individually during whole weekday shifts in urban German settings. A total of 300 days of observations were conducted. All working activities were recorded, accurate to the second, by using a mobile personal computer. Results: Results have shown significant differences in physicians' working activities, depending on hospital ownership, concerning working hours and time spent on direct and indirect patient care. Conclusion: This is the first real-time analysis on differences in work activities depending on hospital ownership. The study provides an objective insight into physicians' daily work routines at hospitals of different ownership, with additional information on effects of hospital privatization

    Community-Wide Assessment of Protein-Interface Modeling Suggests Improvements to Design Methodology

    Get PDF
    The CAPRI and CASP prediction experiments have demonstrated the power of community wide tests of methodology in assessing the current state of the art and spurring progress in the very challenging areas of protein docking and structure prediction. We sought to bring the power of community wide experiments to bear on a very challenging protein design problem that provides a complementary but equally fundamental test of current understanding of protein-binding thermodynamics. We have generated a number of designed protein-protein interfaces with very favorable computed binding energies but which do not appear to be formed in experiments, suggesting there may be important physical chemistry missing in the energy calculations. 28 research groups took up the challenge of determining what is missing: we provided structures of 87 designed complexes and 120 naturally occurring complexes and asked participants to identify energetic contributions and/or structural features that distinguish between the two sets. The community found that electrostatics and solvation terms partially distinguish the designs from the natural complexes, largely due to the non-polar character of the designed interactions. Beyond this polarity difference, the community found that the designed binding surfaces were on average structurally less embedded in the designed monomers, suggesting that backbone conformational rigidity at the designed surface is important for realization of the designed function. These results can be used to improve computational design strategies, but there is still much to be learned; for example, one designed complex, which does form in experiments, was classified by all metrics as a non-binder
    • …
    corecore