1,312 research outputs found
Total thyroidectomy may be more reasonable as initial surgery in unilateral multifocal papillary thyroid microcarcinoma: a single-center experience
The ethics statement of our study by the Ethics Committee of Jilin University affiliated First Hospital. (DOC 58 kb
Chinese Herbal Medicine Industry Development: A Study on the Rural Revitalization Strategies of Huaihua City in Central China
The prosperity of industries is the primary task of rural revitalization. Nowadays, the development of the Chinese herbal medicine industry has been included in the state’s rural revitalization strategy, and the authentic herbal medicine industry in Huaihua City has ushered in new development opportunities. The quality of Chinese herbal medicine in Huaihua City is high, indicating a vast potential for industrial development. However, such problems are low brand influence and a weak industrial foundation. By adopting the methods of literature review and SWOT analysis, this paper sorts out the frontier research findings of industrial prosperity and the development of the Chinese herbal medicine industry and analyzes the status of the Chinese herbal medicine industry in Huaihua City in Central China. It proposes countermeasures to enhance the brand building and promote industrial integration. The development model of Huaihua’s characteristic herbal medicine industry explores a new path for rural revitalization and provides rural revitalization solutions for Central China
A Calculation Method of X-Ray Emitted Intensity in Multi-Layer Films by Monte Carlo Simulation
A calculation method of X-ray emitted intensity in multi-layer films is proposed in this paper. The method is based on the work developed by us: (1) a simplified physical model of electron scattering and Monte Carlo evaluations in a single medium and in multi-layer media and (2) the theories and the formulae for excitation, absorption and fluorescence of characteristic X-rays. The intensity ratio of X-rays for the known thickness films, Au/Cu/Si and Cr/Ni/Si, were calculated at 20, 25 and 30 keV. Calculated results are compared with experimental values of electron microprobe analysis for the multi-layer film specimens, and the correspondence is excellent. The work lays foundations for X-ray quantitative microanalysis of multi-layer specimens
HIV/AIDS, parasites and co-infections: publication patterns in China
BACKGROUND: Since its discovery, HIV/AIDS has arguably captured more attention among the Chinese biomedical research community than most other infectious diseases. Traditional parasitic diseases, on the other hand, are perceived as being increasingly neglected. However, it has long been recognized that interactions between HIV and other infective agents, including parasites, influence the health status of people living with HIV/AIDS. This study aimed at systematically reviewing the Chinese scientific literature on HIV/AIDS and parasites between 1986 and 2006 in order to substantiate or refute these claims, and to highlight neglected research areas.
RESULTS: Searching the three largest Chinese scientific literature databases, in the China National Knowledge Infrastructure (CNKI) a total of 24,511 citations dealing with HIV/AIDS and 15,398 parasite-specific publications were identified. Wanfang Data and VIP Information (VIP) contained 15,925 and 13,873 entries dealing with HIV/AIDS, respectively, while 12,043 and 7,068 hits were scored when searching for parasitological references. The number of publications dealing with HIV/AIDS in China increased exponentially from 6 in 1986 to 3,372 in 2006 whereas the publication activity in the field of parasitology was more erratic and lately started to decline. Epidemiology was the most-reported field of endeavor, accounting for 26.0% and 24.6% of the HIV/AIDS and parasitological literature, respectively, while publications dealing with health education only represented 2.9% and 0.7% of all publications, respectively. The total number of Chinese articles focusing on HIV/AIDS and parasite co-infection was 650, with large year-on-year differences in publication numbers. The single-most frequently studied system was HIV-Pneumocystis carinii co-infection.
CONCLUSIONS: The present study revealed that in China, the fields of parasitic diseases, especially opportunistic parasitic infections linked with HIV/AIDS, is increasingly neglected. This suggests a need to enhance research in the field of opportunistic parasitic infections and parasitology in general
An Analytical Method of Determining Thickness of Multi-Layer Films with Electron Microprobe
In the previous work we have developed a series of theoretical corrections for calculating the emitted X-ray intensity in multi-layer films. By the use of these theories, along with careful experimental operation of the electron probe microanalysis (EPMA) and Monte Carlo iteration calculation, the thickness of each layer in multi-layer films can be determined.
To test the reliability of this method, the multi-layer film specimens Au/Cu/Si, Cu/Au/Si and Ag/Cr/Si of known thicknesses were analyzed at 20, 25, 30 and 35 keV. The percentage relative errors between the thicknesses determined using the correction procedures and those measured using nuclear backscattering are less than 10%, the average value of the errors is 4.6%.
The method may be extended to the calculations of determining element concentrations for the multi-layer specimens of known thicknesses
HB-net: Holistic bursting cell cluster integrated network for occluded multi-objects recognition
Within the realm of image recognition, a specific category of multi-label
classification (MLC) challenges arises when objects within the visual field may
occlude one another, demanding simultaneous identification of both occluded and
occluding objects. Traditional convolutional neural networks (CNNs) can tackle
these challenges; however, those models tend to be bulky and can only attain
modest levels of accuracy. Leveraging insights from cutting-edge neural science
research, specifically the Holistic Bursting (HB) cell, this paper introduces a
pioneering integrated network framework named HB-net. Built upon the foundation
of HB cell clusters, HB-net is designed to address the intricate task of
simultaneously recognizing multiple occluded objects within images. Various
Bursting cell cluster structures are introduced, complemented by an evidence
accumulation mechanism. Testing is conducted on multiple datasets comprising
digits and letters. The results demonstrate that models incorporating the HB
framework exhibit a significant enhancement in recognition accuracy
compared to models without the HB framework ( times, ).
Although in high-noise settings, standard CNNs exhibit slightly greater
robustness when compared to HB-net models, the models that combine the HB
framework and EA mechanism achieve a comparable level of accuracy and
resilience to ResNet50, despite having only three convolutional layers and
approximately of the parameters. The findings of this study offer
valuable insights for improving computer vision algorithms. The essential code
is provided at https://github.com/d-lab438/hb-net.git
A Calculation Method for Quantitative X-Ray Microanalysis for Microparticle Specimens by Monte Carlo Simulation
A calculation method for quantitative X-ray microanalysis (QXMA) for microparticle specimens of a compound with various shapes is proposed in this paper. On the basis of a simplified physical model, the scattering of electrons in particles is calculated by Monte Carlo simulation. We have derived a series of evaluation formulae of the absorption and fluorescence of characteristic X-rays for the particles with regular shapes. With the use of these theories, along with an iteration calculation, compositions of microparticle specimens can be obtained from the measured X-ray intensity ratios. In order to examine the reliability of the method, a large number of electron probe experiments and analysis calculations were carried out for the microparticle specimens of a variety of geometric shapes, dimensions and compositions. Agreement of calculated concentrations using our method with known compositions of the analyzed particle specimens is fairly good. In practical work, calculation formulae for particle specimens with irregular shapes can be replaced by those of particles with approximate regular shapes
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