1,254 research outputs found
Elizabethkingia meningosepticum (Chryseobacterium meningosepticum) Infections in Children
Chryseobacterium meningosepticum is a ubiquitous Gram-negative bacillus historically associated primarily with meningitis in neonates and a wide variety of infections in immunocompromised patients. Neonatal infections often occur as outbreaks with environmental contamination being the source. C. meningosepticum infections are not common but are clinically important because the organism is naturally resistant to multiple antibiotics. In this paper, we have reviewed the nosocomial outbreaks of C. meningosepticum in newborns and infants reported so far in the literature and overviewed the infection control interventions, treatment modalities, and prevention measures
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Empire and nation in the city : Christians, Muslims and Jews in Ottoman and Post-Ottoman Ruse, 1864-1885
My dissertation explores how people of various ethnic and religious backgrounds experienced the transition from Ottoman rule to Bulgarian nation state in the city of Ruse, in present-day northern Bulgaria. It examines the transformative effects of the Ottoman Tanzimat reforms (1864-1876), the Russo-Ottoman War of 1877-8, the Russian provisional government and the early years of a Bulgarian national government. It argues Bulgarian nationalism was not a uniform and deterministic ideology but was rather a complex and contested phenomenon that left room for multiple loyalties and self-definitions. Through various reform programs, the Ottoman Empire also put together its own alternative to Bulgarian nationalism—secular Ottomanism—, which was progressive and open to different perspectives and integrated Bulgarian Christians into the Ottoman political system. After Ottoman withdrawal, the transfer of power to Bulgarian Christians and the marginalization and disenfranchisement of Muslims was not drastic or immediate, but rather a gradual process. Residents of Ruse’s diverse urban environment responded to these political changes through a complex interplay of urban dynamics, political and religious loyalties, and self-interest, rather than inflexible nationalist or imperial ideology.Histor
Deep tillage tool optimization by means of finite element method: Case study for a subsoiler tine
Technologies and computer capacity currently available allow us to employ design software and numerical methods to solve complicated problems in very wide disciplines of engineering. It is also important for researches in agriculture. This study focused on obtaining optimum geometry parameters of a subsoiler tine by using computer aided engineering (CAE) applications. A field experiment was conducted to determine draft force of the subsoiler. The results from the experimental study were used in the finite element analysis (FEA) to simulate stress distributions on the subsoiler tine. The maximum equivalent stress of 432.49 MPa was obtained in the FEA. Visual investigations and FEA results showed that according to the tine’s material yield stress point of 355 MPa, plastic deformation was evident. Based on the FEA results, an optimization study was undertaken to obtain optimum geometry parameters without the occurrence of plastic deformation. According to the optimization study results, the optimum parameters of the tine geometry and maximum equivalent stress of 346.61 MPa were obtained. In addition to this, the total mass of the tine was reduced by about 0.367 kg
P Wave Dispersion is Increased in Pulmonary Stenosis
Aim: The right atrium pressure load is increased in pulmonary stenosis (PS) that is a congenital anomaly and this changes the electrophysiological characteristics of the atria. However, there is not enough data on the issue of P wave dispersion (PWD) in PS.
Methods: Forty- two patients diagnosed as having valvular PS with echocardiography and 33 completely healthy individuals as the control group were included in the study. P wave duration, p wave maximum (p max) and p minimum (p min) were calculated from resting electrocariography (ECG) obtained at the rate of 50 mm/sec. P wave dispersion was derived by subtracting p min from p max. The mean pressure gradient (MPG) at the pulmonary valve, structure of the valve and diameters of the right and left atria were measured with echocardiography. The data from two groups were compared with the Mann-Whitney U test and correlation analysis was performed with the Pearson correlation technique.
Results: There wasn’t any statistically significance in the comparison of age, left atrial diameter and p min between two groups. While the MPG at the pulmonary valve was 43.11 ± 18.8 mmHg in PS patients, it was 8.4 ± 4.5 mmHg in the control group. While p max was 107.1 ± 11.5 in PS group, it was 98.2 ± 5.1 in control group (p=0.01), PWD was 40.4 ± 1.2 in PS group, and 27.2 ± 9.3 in the control group (p=0.01)Moreover, while the diameter of the right atrium in PS group was greater than that of the control group, (38.7 ± 3.9 vs 30.2 ± 2.5, p=0.02). We detected a correlation between PWD and pressure gradient in regression analysis.
Conclusion: P wave dispersion and p max are increased in PS. While PWD was correlated with the pressure gradient that is the degree of narrowing, it was not correlated with the diameters of the right and left atria
Internal mammary artery anastomoses in patients without breast lesions (BIRADS 1) and in patients with malignant breast lesions (BIRADS 6) on magnetic resonance imaging (MRI)
Background: We aimed to compare the frequency of IMA (internal mammarian artery) anastomoses in right and left breasts in patients without breast lesions and in patients with malignant breast lesions. Material/Methods: A total of 100 patients with no breast lesions and a total of 100 patients with malignant breast lesions were included in the study. The anastomoses of IMA of right and left breasts were evaluated on MIP and post-contrast T1-weighted magnetic resonance imaging (MRI) sequences. Breast MRI scans were read by a radiologist. Results: In patients with no breast lesions, IMA anastomoses were found in 45% of cases, and in patients with malignant breast lesions, IMA anastomoses were found in 58% cases. In four patients with malignant lesions, ipsilateral IMA was rudimentary, and the lesion was feeding from the contralateral IMA. Conclusions: No statistically significant difference was found between patients without any breast lesions and patients with malignant breast lesions with respect to the frequency of IMA anastomoses in right and left breasts. The frequencies were higher than expected in both group
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