5,124 research outputs found
Screening for microscopic hematuria in school-age children of the Gorgan city
Screening for hematuria was carried out in 3000 school-age children (6 to14 years old) in Gorgan, Iran, using a fresh morning urine sample. At the initial step, 208 (6.8%) had positive dipstick tests for blood, which decreased to 35 (1.2%) at the second step. Of the 35 children with hematuria, 27 (77.1%) were girls and 8 (22.9%) were boys. Twenty-six children were further evaluated of whom 5 had normal findings, and 7 had hypercalciuria, 13 had nephrolithiasis, and in 1 had a large cystic lesion on ultrasonography, ultimately diagnosed as oncocystoma
Differences in intention to use educational RSS feeds between Lebanese and British students: A multi‑group analysis based on the technology acceptance model
Really Simple Syndication (RSS) offers a means for university students to receive timely updates from virtual learning environments. However, despite its utility, only 21% of home students surveyed at a university in Lebanon claim to have ever used the technology. To investigate whether national culture could be an influence on intention to use RSS, the survey was extended to British students in the UK. Using the Technology Adoption Model (TAM) as a research framework, 437 students responded to a questionnaire containing four constructs: behavioral intention to use; attitude towards benefit; perceived usefulness; and perceived ease of use. Principle components analysis and structural equation modelling were used to explore the psychometric qualities and utility of TAM in both contexts. The results show that adoption was significantly higher, but also modest, in the British context at 36%. Configural and metric invariance were fully supported, while scalar and factorial invariance were partially supported. Further analysis shows significant differences between perceived usefulness and perceived ease of use across the two contexts studied. Therefore, it is recommended that faculty demonstrate to students how educational RSS feeds can be used effectively to increase awareness and emphasize usefulness in both contexts
Hematologic, hepatic, and renal function changes in hospitalized patients with Middle East respiratory syndrome coronavirus
Background
There are no longitudinal data on the changes in hematologic, hepatic, and renal function findings in patients with Middle East respiratory syndrome coronavirus (MERS‐CoV) infection.
Methods
This is a retrospective cohort study of 16 MERS‐CoV patients, to describe the hematological, hepatic, and renal findings of patients with MERS‐CoV.
Results
During the 21 days of observation, there was no significant change in the hepatic panel or creatinine tests. There was a significant increase in the mean ± SD of the white blood cell count from 8.3 ± 4.6 to 14.53 ± 7 (P value = 0.001) and an increase in mean ± SD of the absolute neutrophil count from 6.33 ± 4.2 to 12 ± 5.5 (P value = 0.015). Leukocytosis was observed in 31% (5/16) of the patients on day 1 and in 80% (4/5) on day 21. Transient leukopenia developed in 6% (1/16) of the patients on day 1 and in 13% (1/8) on day 8. None of the patients had neutropenia. Lymphopenia was a prominent feature with a rate of 44% (7/16) of the patients on day 1 and 60% (3/5) on day 21. Lymphocytosis was not a feature of MERS‐CoV infection. Thrombocytopenia developed in 31% (5/16) of the patients on day 1 and 40% (2/5) on day 21. Thrombocytosis was not a prominent feature and was observed in 6% (1/16) of the patients on day 1 and 17% (1/6) on day 9.
Conclusions
Patients with MERS‐CoV infection showed variable hematologic parameters over time. Lymphocytosis and neutropenia were not features of MERS‐CoV infection
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Use of creative tools, technologies, processes and practices in the sectors of Art, Media, and Architecture: State-of the-Art and desired future scenarios
The aim of the paper is to analyse and present the preliminary findings of the EU FP7 funded CRe-AM project for the Art, Media, and Architecture sectors. This project bridges communities of technology providers and innovators with the creative industries, with the aim to build sector-specific dynamic roadmaps for the future of the European creative industries by examining the current state-of-the-art tools, technologies, processes, and practices supporting the creative process against the future scenarios envisioned by stakeholders in these sectors.This work was carried out as part of CRe-AM project, which is supported by European Commission (grant agreement n°612451)
Complications leading to hospitalization due to consumption of anti-TB drugs in patients with tuberculosis in Gorgan, Iran (2007-12)
Background and Objective: Anti tuberculosis drugs therapy is the most effective method for controling
the tuberculosis (TB). Early detection and appropriate treatment can prevent the TB-drug resistance. This
study was carried out to determine the complications leading to hospitalization due to consumption of
anti-TB drugs in patients with tuberculosis.
Methods: In this descriptive-analytic study, 1550 records of patients with TB in urban and rural health
centers of Gorgan, north of Iran were assessed during 2007-12. Checklist consists of demographic and
clinical data for each patient was recorded in a questionare.
Results: 44 cases experienced the complications of anti-TB drugs. 27 (61.4%) of cases with
complications were women. 77.3% and 22.7% of patients affected with pulmonary and extra pulmonary
tuberculosis,respectively. 38.6% of patients were diabetic. The hepatic complication was seen in 37 cases
(84.1%). Skin and other complications were seen in 5 and 2 cases, respectively. There was not any
relationship between drug complications and other disases.
Conclusion: Hepatic damage is the most common complication leading to hospitalization in tuberculosis
patients using anti-TB drugs.
Keywords: Tuberculosis, Anti-TB drug, Live
An interesting anomalous coronary artery: Right coronary artery arising from the mid part of the left anterior descending artery
A 48-year-old woman was admitted to the emergency department with complaints of typical chest pain, cold sweat, and dyspnea of 24 hours’ duration. She had a history of hypertension, hyperlipidemia, and diabetes mellitus for many years. On admission, her electrocardiogram (ECG) revealed normal sinus rhythm and dynamic T inversion in the precordial leads. Her enzyme levels were normal. Transthoracic echocardiography showed a left ventricular ejection fraction of 60%, with mild mitral regurgitation. Because of ST depression during the peak exercise test, cardiac catheterization was suggested and then performed. Coronary angiography demonstrated normal left main coronary artery courses with normal dominant left circumflex artery and left anterior descending artery (LAD). An anomalous right coronary artery (RCA) was seen, with a nondominant separate branch arising from the mid part of the LAD. It then coursed anteriorly down on the right atrioventricular groove (Figure 1). Attempts for the cannulation of the RCA were unsuccessful. Aortic root angiography did not show the presence of an independent-origin RCA from the ascending aorta (Figure 2 and Figure 3). We selected medical management of X syndrome (microvascular disease) and followed up the patient because of the nondominancy of the RCA. There was no need for revascularization or surgery. She was discharged in good condition
The Simplified- Approximation of the Neutron Transport Equation
The simplified double-spherical harmonics () approximation of the
neutron transport equation is proposed. The equations are derived from
the multi-group equations for N=1,2,3 (equivalent to the , ,
and equations, respectively), and are converted into the form of second
order multi-group diffusion equations. The finite element method is then used
to numerically solve these equations. The computational performance of the
method is compared with the on several fixed-source and
criticality test problems. The results show that the formulation
generally calculates parameters like criticality eigenvalue, disadvantage
factors, absorption rate, etc. more accurately than the , while the
computational effort is the same for both methods.Comment: 20 pages, 9 figures, 11 table
Expression levels of vascular endothelial growth factors A and C in patients with peptic ulcers and gastric cancer
Purpose: Vascular endothelial growth factor (VEGF) is one of the most important growth factors for metastatic tumors. To clarify the role of VEGF-A and C in patients with peptic ulcer disease (PUD) or gastric cancer (GC), we evaluated the expression levels of these two molecules. We also analyzed the effect of Helicobacter pylori infection on VEGF-A and C expression levels
Experimental study on the high-velocity impact behavior of sandwich structures with an emphasis on the layering effects of foam core
In this study, the effects of the core layering of sandwich structures, as well as arrangements of these layers on the ballistic resistance of the structures under high-velocity impact, were investigated. Sandwich structures consist of aluminum face-sheets (AL-1050) and polyurethane foam core with different densities. Three sandwich structures with a single-layer core of different core densities and four sandwich structures with a four-layer core of different layers arrangements were constructed. Cylindrical steel projectiles with hemispherical nose, 8 mm diameter and 20 mm length were used. The projectile impact velocity range was chosen from 180 to 320 m/s. Considering constant mass and total thickness for the core, the results of the study showed that the core layering increases the ballistic limit velocity of the sandwich structures. The ballistic limit velocity of the panels with a four-layer core of different arrangements, compared to the panel with the single-layer core, is higher from 5% to 8%. Also, for the single-layer core structure, by increasing the core density, the ballistic limit velocity was increased. Different failure mechanisms such as plugging, petaling and dishing occurred for the back face-sheet. The dishing area diameter of back face-sheets was proportional to the ballistic resistance of each sandwich structure
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