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Two-dimensional transition metal dichalcogenides (2D TMDs), such as WS2, are considered to have the potential for high-performance gas sensors. It is a pity that the interaction between gases and pristine 2D WS2 as the sensitive element is too weak so that the sensor response is difficult to detect. Herein, the sensing capabilities of Al- and P-doped WS2 to NO, NO2, and SO2 were evaluated. Especially, we considered selectivity to target gases and dopant concentration. Molecular models of the adsorption systems were constructed, and density functional theory (DFT) was used to explore the adsorption behaviors of these gases from the perspective of binding energy, band structure, and density of states (DOS). The results suggested that doping atoms could increase the adsorption strength between gas molecules and substrate. Besides, the sensitivity of P-doped WS2 to NO and NO2 was hardly affected by CO2 or H2O. The sensitivity of Al-doped WS2 to NO2 and SO2 was also hard to be affected by CO2 or H2O. For NO detection, the WS2 with 7.4% dopant concentration had better sensitive properties than that with a 3.7% dopant concentration. While for SO2, the result was just the opposite. This work provided a comprehensive reference for choosing appropriate dopants (concentration) into 2D materials for sensing noxious gases.
Seed dormancy, a quality characteristic that plays a role in seed germination, seedling establishment and grain yield, is affected by multiple genes and environmental factors. The genetic and molecular mechanisms underlying seed dormancy in rice remain largely unknown.
Quantitative trait loci (QTLs) for seed dormancy were identified in two different mapping populations, a chromosome segment substitution line (CSSL) and backcross inbred line (BIL) population, both derived from the same parents Nipponbare, a japonica cultivar with seed dormancy, and 9311, an indica cultivar lacking seed dormancy. A total of 12 and 27 QTL regions for seed dormancy were detected in the CSSLs and BILs, respectively. Among these regions, four major loci (qSD3.1, qSD3.2, qSD5.2 and qSD11.2) were commonly identified for multiple germination parameters associated with seed dormancy in both populations, with Nipponbare alleles delaying the seed germination percentage and decreasing germination uniformity. CDK inhibitor Two loci (qSD3.1 and qSD3.mancy in rice. Our findings regarding the major loci and their interactions with several promising candidate genes that are induced by abscisic acid and specifically expressed in the seeds will facilitate further gene discovery and a better understanding of the genetic and molecular mechanisms of seed dormancy for improving seed quality in rice breeding programs.
Although rare, the possibility of encountering an anomalous coronary artery is a reality. The outcome of such a procedure is greatly influenced by the awareness of the operator about the anatomical variations and the technique required.
A 50-year-old female patient presented with chest pain. On evaluation, she was found to have an inferior wall myocardial infarction. Left coronary angiography showed non-obstructive disease in the left anterior descending (LAD) and left circumflex artery (LCX). The right coronary artery could not be hooked despite multiple attempts and catheter changes. A non-specific aortic angiogram revealed anomalous origin of the right coronary artery (RCA) above the sinotubular junction on the left side. RCA was hooked with the AL-2 diagnostic catheter, and the percutaneous coronary intervention (PCI) procedure was completed via the same diagnostic catheter.
In a life-threatening difficult situation like acute coronary syndrome with anomalous origin of coronary arteries, PCI can be done using a diagnostic catheter.
In a life-threatening difficult situation like acute coronary syndrome with anomalous origin of coronary arteries, PCI can be done using a diagnostic catheter.Beta values of the intertrochanteric fracture group were about twice as high as those of the femoral neck fracture group. These results can be used to increase the awareness of proximal hip fracture among physicians and improve treatments and outcomes.
To compare the BMD of the femoral neck region and the intertrochanteric region between the femoral neck fracture group and the intertrochanteric fracture group.
We did a retrospective review of radiographs of the proximal femoral fractures in patients registered from 2010 to 2017. A total of 329 patients were classified into the femoral neck fracture group (group A, n = 162) and the femur intertrochanteric fracture group (group B, n = 167). We did intergroup comparisons of age, sex, BMI (body mass index), and bone mineral density (BMD) of the neck and intertrochanteric region, adjusting for age. We did multiple logistic regression analysis among these parameters.
The BMD of the femoral neck and intertrochanteric was statistically significantly different between the two groups (p < 0.001), and the BMD of the femur intertrochanteric was also significantly different between the two groups (p < 0.001). BMD of both regions in the intertrochanteric fracture group was lower than that of the femoral neck fracture group. In linear regression analysis, the beta values of the intertrochanteric fracture group were about twice as high as those of the femoral neck fracture group.
In linear regression analysis, the beta values of the intertrochanteric fracture group were about twice as high as those of the femoral neck fracture group.
In linear regression analysis, the beta values of the intertrochanteric fracture group were about twice as high as those of the femoral neck fracture group.In the original version of the above article the References 19 and 20 were incorrect which cannot describe the development of the SPARCC score.
This study aimed to determine the natural distribution of the distal femoral valgus cut angle (VCA) among an Arabic population; the percentage of patients whose VCA fell within the range of 5-6°; and whether demographic variables, severity of the pre-operative varus, and morphological femoral parameters would correlate with the VCA. To our knowledge, VCA measurement of degenerative varus knees among an Arabic population has not been reported previously in the literature.
A total of 492 knees (246 patients) were included. The VCA was measured on pre-operative hip-to-ankle radiographs according to a standard protocol. Patient characteristics and radiographic parameters were recorded.
The mean VCA was 6.03 ± 1.69°, with 230 knees (46.7%) falling within the (5-6°) range. The VCA significantly differed according to the patient's age (p = 0.02), sex (p = 0.009), height (p = 0.03), degree of varus (p < 0.001), hip offset (p = 0.013), and the presence of excessive lateral coronal bowing of the femur (p = 0.01).
Here's my website: https://www.selleckchem.com/CDK.html
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