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The sorghum genotypes that were N-use inefficient were more susceptible to the colonization from a diverse set of inoculated bacteria as compared to the N-use efficient lines especially under low-N. By integrating high-throughput phenotyping with sequencing data, our findings highlight the roles of host genotype and plant nutritional status in determining colonization by bacterial synthetic communities.
This study was conducted to compare the use of intraoral photographs with the unaided visual dental examination as a means of dental caries detection in children.
Children aged 4- to 14-year-olds were visually examined at their schools. Following dental examinations, children had five photographs of their teeth taken using a smartphone camera. Four dental reviewers, who are different from those who visually examined the children, assessed intraoral photographs for dental caries. Sensitivity, specificity, and inter-rater reliability agreement were estimated to assess the diagnostic performance of the photographic method relative to the benchmark visual dental assessments. Caries prevalence was measured using dft/DFT (decayed and filled teeth) index.
One hundred thirty-eight children (67 male and 71 female) were enrolled and had a mean age of 7.8 ± 2.1 years. The caries prevalence (dft/DFT > 0) using photographic dental assessments ranged from 30 percent to 39 percent but was not significantly different from the prevalence (42 percent) estimated with the visual dental examination (P ≥ 0.07). The sensitivity and specificity of the photographic method for detection of dental caries compared to visual dental assessments were 58-80 percent and 99.7-99.9 percent, respectively. The sensitivity for the photographic assessments was high in the primary dentition (63-82 percent) and children ≤7-year-olds (67-78 percent). The inter-rater reliability for the photographic assessment versus the benchmark ranged from substantial to almost perfect agreement (Kappa = 0.72-0.87).
The photographic approach to dental screening, used within the framework of its limitations, yielded an acceptable diagnostic level of caries detection, particularly in younger children with primary dentition.
The photographic approach to dental screening, used within the framework of its limitations, yielded an acceptable diagnostic level of caries detection, particularly in younger children with primary dentition.Inflow to a tunnel is a great public concern and is closely related to groundwater hydrology, geotechnical engineering, and mining engineering, among other disciplines. Rapid computation of inflow to a tunnel provides a timely means for quickly assessing the inflow discharge, thus is critical for safe operation of tunnels. Dewatering of tunnels is another engineering practice that should be planned. In this study, an analytical solution of the inflow to a tunnel in a fractured unconfined aquifer is obtained. The solution takes into account either the spherical or slab-shaped matrix block and the unsteady state interporosity flow. The instantaneous drainage water table and anisotropic hydraulic conductivities of the fractures network are also considered. Both uniform flux and uniform head boundary condition are considered to simulate the constant head boundary condition in the tunnel. The effects of the hydraulic parameters of the fractured aquifer on the inflow variation of the tunnel are explored. The application of the presented solution to obtain the optimum location and discharge of the well to minimize the inflow to a tunnel is illustrated.
Due to high prevalence of urolithiasis, endourologic interventions have also been increased for the treatment of patients with urinary stones. During fluoroscopy-guided Percutaneous Nephrolithotomy (PCNL), the surgeon and the patient are exposed to X-ray and its harmful effects. The aim of this study was to assess the reduction of the radiation dose received by surgeons and patients after using the new shielding method.
In this study, the dose of radiation exposure by the surgeon and patient during PCNL under fluoroscopic procedure with conventional shielding methods was compared to a new shielding method designed by the researcher. For this purpose, shields and lead cone with a thickness of 0.5 mm were used. Also, to evaluate the dose of radiation received by surgeons and patients in different parts of the body, Thermoluminescent dosimeters(TLD)were used.
By using new shielding method, a 37 ± 2% reduction was found in the dose exposure as compared to the conventional shielding method. The maximum reduction in radiation dose was specified to the surgeon's hands, while the lowest reduction in radiation dose was related to surgeon's thyroid gland. The maximum and minimum reductions in radiation exposure for patients were specified to patients' feet and chest respectively.
There is a significant difference between the total dose received by the surgeons and the patients following the use of the new shielding method and the standard shielding method. The new shielding method can reduce 37 ± 2% of the x-ray received by the patient and the surgeon during fluoroscopy-guided PCNL.
There is a significant difference between the total dose received by the surgeons and the patients following the use of the new shielding method and the standard shielding method. The new shielding method can reduce 37 ± 2% of the x-ray received by the patient and the surgeon during fluoroscopy-guided PCNL.
To compare the efficiency and safety of two minimally invasive surgeries, laparoscopy and flexible ureteroscopy (fURS), in the management of renal parapelvic cysts.
Between January 2013 and April 2019, patients who suffered from parapelvic cysts and received fURS or laparoscopy at our hospital were recruited for this study. Computed tomography (CT) scans and intravenous urogram (IVU) were performed for cyst diagnosis. Two surgeons performed fURS and laparoscopy. this website All patients underwent biopsies of the cyst wall. Baseline characteristics and outcome measures were recorded. Primary outcome was treatment success, which was defined as symptomatic and radiological. During follow-up, telephone contact and CT scans were used to record any relevant symptoms and any recurrence, respectively. SPSS was used to analyze the data and two-tailed P < .05 were considered statistically significant.
A total of 33 patients (22 in fURS; 11 in laparoscopy) were included in this study. There was no significant difference between the two groups with regard to age (P = .
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