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88; 0.80 ≤ index of agreement (d) ≤ 0.97). DNDC generally exhibited "fair" performance in estimating soil moisture and drainage (10.9% ≤ nRMSE ≤ 27.2%; -0.18 ≤ NSE ≤ 0.37; 0.69 ≤ d ≤ 0.82) and "good" performance when predicting nitrate leaching (12.4% ≤ nRMSE ≤ 26.7%; -0.59 ≤ NSE ≤ 0.51; 0.68 ≤ d ≤ 0.90). Sensitivity analyses demonstrated that optimized management practices (planting dates, irrigation amount, fertilization rate and timing) could substantially reduce N usage by 40%-50%, irrigation amount by 33%-50%, and nitrate leaching by 86%-95% compared to farmers' practice in radish planting system. This study indicated that a modelling method is helpful for evaluating the biogeochemical effects of management alternatives and identifying optimal management practices in radish production systems of China.River sediments have the capability to accumulate and absorb traces of anthropic environmental degradation. In this work, we investigated the effects of urban land use on the composition of physical sediment. For this purpose, sediment profiles were collected in the wet and dry seasons and in locations with mixed land-use. For the sediment analysis, particle size separation, organic matter degradation, visual analysis of the thickest fraction using a magnifying glass and stereomicroscope analysis of the particle size material corresponding to the sands were performed. It was observed that the sedimentation of synthetic materials and plastics (fragments and fibres) were the most frequently found materials. More intense urban occupation areas and with less riparian vegetation suffer more from this degradation than rural areas or areas with preserved riparian vegetation. The dam in the basin accumulates more materials (macro and microplastics) and has the role of containing and preventing these residues from being transported downstream. The importance of investing in environmental management measures is emphasized, and based on the sampled sites assessed, the restoration of riparian vegetation, greater inspection of inadequate waste disposal and public cleaning actions are suggested, including actions in the Tibiriçá dam.As the world's largest inland shipping channel, the Yangtze River Economic Belt (YREB) is strategic to China's sustainable development where policymakers are increasingly emphasizing not only this region's economic development but also its CO2 emission reduction targets. To achieve emission targets in the YREB region, it is essential to identify the driving forces of its CO2 emissions. However, existing studies are not very refined and only examine the overall effects of drivers on CO2 emission changes, while neglecting the sub-regional and sectoral level effects across China. More refined research, therefore, will provide better-targeted policies for emission reduction relevant to regional levels such as the YREB region. Towards this end, this paper integrates the methods of structural decomposition analysis and attribution analysis to demonstrate the driving forces, at both sub-regional and sectoral levels, for YREB's emission changes from 2002 to 2012. Our results reveal the following (1) Jiangsu Province apply more refined measures to utilize varying driving forces in different sub-regions and economic sectors towards sustainable development.Threatened species are inadequately represented within protected areas (PAs) across the globe. Species conservation planning may be improved by using public species-occurrence databases, but empirical evidence is limited of how that may be accomplished at local scales. We used the Three Parallel Rivers Region of China as a case to investigate the utility of public species data in improvement in conservation planning. We mapped the distribution of each species as suitable habitat ranges using species distribution models (for 261 plants and 29 animals with ≥5 occurrences) or as point locations (for 591 plants and 328 animals with less then 5 occurrences). Systematic conservation planning was then applied to identify three optimized portfolios of priority conservation areas (PCAs) for achieving increasing targets of 17, 31, and 50% of the total study area. We then compared the distributions of PCAs in this study with those in two existing PCA datasets. PCAs in this study covered greater areas in the southeastern highly-disturbed regions and along valleys of great rivers than two existing datasets that had a focus on intact ecosystems in remote mountain areas. The three portfolios of PCAs had some overlap with two existing PCA datasets, with the overlapping area accounting for 26.4-39.0% of the total areas of our PCAs. Our PCAs could complement existing PCAs by identifying more priority areas in developed landscapes; this is critical for protecting biodiversity in such areas as they face greater pressures. PCAs in this study received a much lower PA coverage (32.9-43.1%) than existing PCAs (60.2-60.8%) because of biased PA distribution toward mountain areas. Our results suggest that conservation planning based on limited public species data could improve local-scale priority-setting practices. The analysis supports effective integration of species targets in China's new national park system by identifying optimized networks of PCAs.
The aim of this study was to evaluate the feasibility and efficacy of the femoral artery (FA)-nourished anteromedial thigh (AMT) flap for reconstructing oral and maxillofacial defects.
The authors analyzed a retrospective case series of 13 patients who underwent the reconstruction of oral and maxillofacial defects with the FA-nourished AMT flap. The flap design and the methods for defect reconstruction are described, and the reconstructive efficacy is reported.
Of the 13 patients, 12 were men, and 1 was woman, with an average age of 52.2years. Of these FA-supplied AMT flaps, 7 were singly used, 5 were combined with the anterolateral thigh (ALT) flap or its chimeric flaps, and 1 was separately used with the ALT flap. Postoperatively, all flaps survived completely, without vascular compromise or major wound complications.
The FA-nourished AMT flap can also be used to reconstruct some common oral and maxillofacial defects, especially as a new alternative to the ALT flap. In addition, this flap can be combined with the ALT flap or its chimeric flaps or separately used with the ALT flap for the reconstruction of complex defects.
The FA-nourished AMT flap can also be used to reconstruct some common oral and maxillofacial defects, especially as a new alternative to the ALT flap. In addition, this flap can be combined with the ALT flap or its chimeric flaps or separately used with the ALT flap for the reconstruction of complex defects.
Carotid atherosclerosis (CAS) is the main reason leading to cardiovascular conditions such as coronary heart disease and cerebrovascular diseases. In the carotid ultrasound images, the carotid intima-media structure can be observed in an annular narrow strip, which its inner contour corresponds to the carotid intima, and the outer contour corresponds to the carotid extima. With the development of carotid atherosclerosis, the carotid intima-media will gradually thicken. Therefore, doctors can observe the carotid intima-media so as to obtain the pathological changes of the internal structure of the patient's carotid arteries. However, due to the presence of artifacts and noises the quality of the ultrasound images are degraded, making it difficult to obtain accurate carotid intima-media structures. selleck compound This article presents a novel self-adaptive method to enable obtaining the carotid intima-media through carotid intima/extima segmentation.
After preprocessing the ultrasound images by homomorphic filtering and mically and accurately thus effectively assist doctors in the diagnosis of CAS.
Comparing with traditional methods, the proposed method performed better. The experimental results indicated that the proposed method obtained the carotid intima-media both automatically and accurately thus effectively assist doctors in the diagnosis of CAS.
The primary causes of kidney failure are chronic and polycystic kidney diseases. Cyst, stone, and tumor development lead to chronic kidney diseases that commonly impair kidney functions. link2 The kidney diseases are asymptomatic and do not show any significant symptoms at its initial stage. Therefore, diagnosing the kidney diseases at their earlier stage is required to prevent the loss of kidney function and kidney failure.
This paper proposes a computer-aided diagnosis (CAD) system for detecting multi-class kidney abnormalities from ultrasound images. The presented CAD system uses a pre-trained ResNet-101 model for extracting the features and support vector machine (SVM) classifier for the classification purpose. Ultrasound images usually gets affected by speckle noise that degrades the image quality and performance of the CAD system. Hence, it is necessary to remove speckle noise from the ultrasound images. Therefore, a CAD based system is proposed with the despeckling module using a deep residual learning ne supporting tool for diagnosing multi-class kidney abnormalities from the ultrasound images.
The proposed CAD system outperforms in classifying the noisy kidney ultrasound images precisely as compared to the existing state-of-the-art methods. Further, the CAD system is evaluated in terms of selectivity and sensitivity scores. The presented CAD system with the pre-processing module would serve as a real-time supporting tool for diagnosing multi-class kidney abnormalities from the ultrasound images.
To determine the prevalence of oropharyngeal high-risk human papillomavirus (HPV) in patients undergoing tonsillectomy by detection of high-risk HPV in tonsil tissues using the in situ hybridization (ISH) technique.
The patients who underwent tonsillectomy between 2014 and 2018 were examined retrospectively. The pediatric cases and patients who underwent tonsillectomy due to malignancy were excluded. The study included 270 adult cases selected by age and gender randomization. The tonsillar tissue of each case was re-examined by the pathology department, and the presence of high-risk HPV was investigated via the ISH technique. link3 Multiple logistic regression models were used for predictions of different factors.
The prevalence of high-risk HPV in the 270 patients (male 154 [57%]; female 116 [43%]; mean age 36.44±12.87years) was found to be 6.7% (n=18). The prevalence was found 8.4% in men and 4.3% in women; 8.9% in cases under the age of 40 and 2.9% in cases over the age of 40; and 10.9% in patients who underwent tonsillectomy for infectious indications and 2.3% for non-infectious indications. Multivariate analysis identified that the infectious indications for tonsillectomy were significantly associated with high-risk HPV positivity (OR 5.328; p=0.009).
The prevalence of oropharyngeal high-risk HPV was found to be 6.7% and higher in younger people and men. Additionally, the HPV positivity was found to be higher in patients who underwent tonsillectomy for infectious indications. To our knowledge, this is the first study that reports the correlation between recurrent tonsil infections and HPV positivity in tonsil tissue.
The prevalence of oropharyngeal high-risk HPV was found to be 6.7% and higher in younger people and men. Additionally, the HPV positivity was found to be higher in patients who underwent tonsillectomy for infectious indications. To our knowledge, this is the first study that reports the correlation between recurrent tonsil infections and HPV positivity in tonsil tissue.