Value of Contrast-Enhanced Ultrasonography in the Differential Diagnosis of Enlarged Lymph Nodes: a Meta-Analysis of Diagnostic Accuracy Studies

Jin, Ya,He, Yu-Shuang,Zhang, Ming-Ming,Parajuly, Shyam Sundar,Chen, Shuang,Zhao, Hai-Na,Peng, Yu-Lan Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.6

Objective: To evaluate the diagnostic accuracy of contrast-enhanced ultrasonography (CEUS) in differentiating between benign and malignant enlarged lymph nodes using meta-analysis. Materials and Methods: Pubmed, Embase, SCI and Cochrane databases were searched for studies (up to September 1, 2014) reporting the diagnostic performance of CEUS in discriminating between benign and malignant lymph nodes. Inclusion criteria were: prospective study; histopathology as the reference standard; and sufficient data to construct $2{\times}2$ contingency tables. Methodological quality was assessed using Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2). Patient clinical characteristics, sensitivity and specificity were extracted. The summary receiver operating characteristic curve was used to examine the accuracy of CEUS. A meta-analysis was performed to evaluate the clinical utility in identification of benign and malignant lymph nodes. Sensitivity analysis was performed after omitting outliers identified in a bivariate boxplot and publication bias was assessed with Egger testing. Results: The pooled sensitivity, specificity and AUROC were 0.92 (95%CI, 0.85-0.96), 0.91 (95%CI, 0.82-0.95) and 0.97 (95%CI, 0.95-0.98), respectively. After omitting 3 outlier studies, heterogeneity decreased. Sensitivity analysis demonstrated no disproportionate influences of individual studies. Publication bias was not significant. Conclusions: CEUS is a promising diagnostic modality in differentiating between benign and malignant lymph nodes and can potentially reduce unnecessary fine-needle aspiration biopsies of benign nodes.

Halomonas alkalitolerans sp. nov., a Novel Moderately Halophilic Bacterium Isolated from Soda Meadow Saline Soil in Daqing, China

Shuang Wang,Qian Yang,Zhi-Hua Liu,Lei Sun,Dan Wei,Jun-Zheng Zhang,Jin-Zhu Song,Yun Wang,Jia Song,Jin-Xia Fan,Xian-Xin Meng,Wei Zhang 한국미생물학회 2011 The journal of microbiology Vol.49 No.1

A moderately halophilic bacterial strain 15-13^T, which was isolated from soda meadow saline soil in Daqing City, Heilongjiang Province, China, was subjected to a polyphasic taxonomic study. The cells of strain 15-13^T were found to be Gram-negative, rod-shaped, and motile. The required growth conditions for strain 15-13^T were: 1-23% NaCl (optimum, 7%), 10-50°C (optimum, 35°C), and pH 7.0-11.0 (optimum, pH 9.5). The predominant cellular fatty acids were C18:1 ω7c (60.48%) and C16:0 (13.96%). The DNA G+C content was 67.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons indicated that strain 15-13^T clustered within a branch comprising species of the genus Halomonas. The closest phylogenetic neighbor of strain 15-13^T was Halomonas pantelleriensis DSM 9661^T (98.9% 16S rRNA gene sequence similarity). The level of DNA-DNA relatedness between the novel isolated strain and H. pantelleriensis DSM 9661^T was 33.8%. On the basis of the phenotypic and phylogenetic data, strain 15-13^T represents a novel species of the genus Halomonas, for which the name Halomonas alkalitolerans sp. nov. is proposed. The type strain for this novel species is 15-13^T (=CGMCC 1.9129^T =NBRC 106539^T).

The Impact of Spatial Distribution of Heterogeneous Vehicles on Performance of Mixed Platoon: A Cyber-Physical Perspective

Shuang Jin,Di-Hua Sun,Zhongcheng Liu 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.1

This paper explores a method to improve the performance of mixed platoon when the penetration rate of automated vehicles (AVs) is low. The mixed traffic, composing of conventional vehicles and AVs, on the one hand, there is heterogeneity between conventional vehicles and AVs, on the other hand, conventional vehicles also show heterogeneity because of different drivers. Therefore, the cyber-physical relationship between vehicles is more complicated. To this end, we firstly analyze the car-following process of vehicles from the cyber-physical perspective and give the model of mixed traffic system. Then we present the descriptive method of driver heterogeneity of conventional vehicles and give the relevant evaluation indices for evaluating the performance of mixed platoon. Finally, we explore the impact of the spatial distribmution of vehicles on performance of mixed platoon in three cases, and the driver heterogeneity of conventional vehicles is also considered. What’s more, in each case, we give three spatial distribution modes and analyze the differences of mixed platoon between the three modes from multiple perspectives. The results show that when the penetration rate of AV is low in the mixed traffic, even considering driver heterogeneity, the performance of the mixed platoon can be improved by arranging regularly the spatial distribution between AVs and conventional vehicles.

RPSA Gene Mutants Associated with Risk of Colorectal Cancer among the Chinese Population

Zhang, Shan-Chun,Jin, Wen,Liu, Hui,Jin, Ming-Juan,Chen, Ze-Xin,Ding, Zhe-Yuan,Zheng, Shuang-Shuang,Wang, Li-Juan,Yu, Yun-Xian,Chen, Kun Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.12

The primary aim of this study was to evaluate the relationship of single nucleotide polymorphisms (SNPs) in ribosomal protein SA (RPSA) gene with colorectal cancer (CRC). A case-control study including 388 controls and 387 patients with CRC was conducted in a Chinese population. Information about socio-demography and living behavior factors was collected by a structured questionnaire. Three SNPs (rs2133579, rs2269349, rs7641291) in RPSA gene were genotyped by Illumina SnapShot method. Multiple logistic regression models were used for assessing the joint effects between tea consumption and SNPs on CRC. The subjects with rs2269349 CC genotype had a decreased risk for CRC (OR=0.60; 95%CI = 0.37-0.99), compared with TT/CT genotype after adjustment for covariates. A similar association of rs2269349 with rectal cancer was observed (OR=0.49; 95%CI=0.24-1.00). Further analyses indicated that this SNP could modify the protective effect of tea drinking on CRC. Among the subjects with rs2269349 TT/CT or rs2133579 AA/GA, there was a marginal significantly lower risk of CRC (OR and 95%CI: 0.63 and 0.39-1.01 for rs2269349; 0.64 and 0.40-1.02 for rs2133579) in tea-drinking subjects in comparison to non-tea-drinking subjects. Mutants in the RPSA gene might be associated with genetic susceptibility to CRC and influence the protective effect of tea consumption in the Chinese population.

Study of Factors Affecting Consumers’ Willingness to Pay for Certified Traceable Pork in Yanbian

Shuang-Yu HU,Shi-Yong Piao,Zhi-Run Li,손우총,Xuan-You Jin,이종인 경상국립대학교 농업생명과학연구원 2021 농업생명과학연구 Vol.55 No.3

With the development of the economy and the continuous improvement of people’s living standards, consumers’ increasing demand for safe food has become an inevitable trend of social development. On the one hand, food safety is an urgent social problem needed to be solved in China. On the other hand, the food safety guarantee method based on a traceability system is popular. This paper systematically studies the influencing factors of consumers’ willingness to pay for the extra price of traceable pork in the Yanbian area through empirical analysis. The result showed that consumers’ attitude and subjective norms, and perceived behavior control, have significantly positively affect consumers’ willingness to pay the extra price. Meanwhile, consumers’ perceived risk of traceable pork significantly moderates the effect on consumers’ attitude and willingness to pay an extra price. The results can provide the corresponding reference for government agencies to formulate policies and provide valuable suggestions for enterprises to develop a pork traceability market to realize the development of a pork traceability system in the Yanbian area to ensure consumers’ food safety.

Voxel-encoded descriptor for 3D model retrieval by exploring model’s spatial information

Jin-Yuan Jia,Qian Zhang,Long Zeng,Shuang Liang 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.7

Retrieving similar products with a given one has attracted considerable attention. However, products are usually assembled by multiplecomponents, frustrating the previous visual-based retrieval descriptors. We design a voxel-encoded descriptor (VED) by exploring models’spatial information, i.e., boundary data and internal data. This descriptor is computed in three steps. First, the posture of a polygonalmodel is normalized by improved voxel-based principal component analysis technique. Then, six color images are generated by projectingthe voxels along its six local axes. The color value of each pixel encodes status of all voxels intersecting with the ray starting from thepixel and parallel to the axis. The status of all voxels along a ray embodies the spatial distribution of the model along this ray. Finally, theVED is computed by applying 2D Fourier transformation to the six color images. With VED, we can distinguish a hollow sphere from asolid sphere. To improve the retrieval efficiency, the database structure is optimized by an improved geometric manifold entropy(iGEOMEN) scheme. VED and iGEOMEN are integrated into a model retrieval system. Experimental results demonstrate that the VEDdescriptor outperforms the previous visual-based shape descriptors, especially for complex assembly models.

A Study of the Regional Brand Recognition of Yanbian Cattle in China and the Resulting Effect on Consumers' Purchasing Intention Likelihood

Shuang-yu Hu,Shi-yong Piao,Zhi-run Li,Yu-cong Sun,Xuan-you Jin,Jong-In Lee 한국국제농업개발학회 2021 韓國國際農業開發學會誌 Vol.33 No.1

본 연구에서는 중국 길림성 연변 주 지역의 ‘연변황우’ 소비자 대상으로 설문조사를 실시하였음. 먼저 국내외 브랜드 인지 및 구매 의사에 관한 이론을 검토하고 소비자의 브랜드 인식 등의 이론을 바탕으로 연구 가설을 제시하였음. ‘연변황우’에 대한 소비자 구매 의사에 영향을 미치는 요인을 구축하여 분석을 실시하였음. 연구 결과 1. ‘연변황우’ 브랜드 이미지는 소비자의 구매 의사에 긍정적인 영향을 미치며 소비자의 ‘품질 감지’ 요인에 정(+)의 영향을 미침. 2. ‘위험 감지’ 요인에는 부(-)의 영향을 미침. ‘품질 감지’ 요인은 ‘연변황우’ 구매 의사에 긍정적인 영향을 미침. 3. ‘연변황우’의 브랜드 이미지 관리를 강화해야하며 이는 브랜드의 연구관련에 새로운 분야 탐색에 중요한 의의가 있음. This paper summarizes both domestic and foreign research theories centered around consumers' relationships to brand recognition and consumption patterns, and focuses on the results of a field survey conducted among a group of consumers in Yanbian. With the use of a variety of theories, including consumer brand equity theory, we present different research hypotheses which give insight into the different factors which affect the Yanbian Cattle's brand recognition in different regional contexts. Through empirical analysis, we measured the strength of the model which linked Yanbian Yellow Cattle's regional brand recognition with consumers' purchasing intentions. Based on the results of the study, we were able to fully analyze the future directions of the product's brand recognition, basing this analysis on a deep understanding of the regional and industrial environment of the Yanbian. With these results, we bring forward suggestions for the management of the Yanbian Yellow Cattle's regional branding strategy, and offer insights into new future research directions that would more fully support unique and effective corporate branding strategies.

Inhibition of DNA repair protein RAD51 affects porcine preimplantation embryo development

Jin, Zhe-Long,Shen, Xing-Hui,Shuang, Liang,Kwon, Jeong-woo,Seong, Min-Jeong,Kim, Nam-Hyung BioScientifica 2019 Reproduction Vol.157 No.3

<P>Homologous recombination (HR) plays a critical role in facilitating replication fork progression when the polymerase complex encounters a blocking DNA lesion, and it also serves as the primary mechanism for error-free DNA repair of double-stranded breaks. DNA repair protein RAD51 homolog 1 (RAD51) plays a central role in HR. However, the role of RAD51 during porcine early embryo development is unknown. In the present study, we examined whether RAD51 is involved in the regulation of early embryonic development of porcine parthenotes. We found that inhibition of RAD51 delayed cleavage and ceased development before the blastocyst stage. Disrupting RAD51 activity with RNAi or an inhibitor induces sustained DNA damage, as demonstrated by the formation of distinct γH2AX foci in nuclei of four-cell embryos. Inhibiting RAD51 triggers a DNA damage checkpoint by activating the ataxia telangiectasia mutated (ATM)-p53-p21 pathway. Furthermore, RAD51 inhibition caused apoptosis, reactive oxygen species accumulation, abnormal mitochondrial distribution and decreased pluripotent gene expression in blastocysts. Thus, our results indicate that RAD51 is required for proper porcine parthenogenetic activation (PA) embryo development.</P>

Direction-of-Arrival Estimation Based on Khatri-Rao Product and Redundancy Arrays

Shuang Li,Xuguang Yang,Xiaoxiao Jiang,Feng Jin,Yingguan Wang 보안공학연구지원센터(IJSIP) 2013 International Journal of Signal Processing, Image Vol.6 No.4

Effect of Gaps on Species Diversity in the Naturally Regenerated Mixed Broadleaved-Korean Pine Forest of the Xiaoxing'an Mountains, China

Jin Guangze,Yanyan Liu,Shuang Liu,Ji Hong Kim 한국생태학회 2007 Journal of Ecology and Environment Vol.30 No.4

Recognizing the ecological importance of forest gap formation for forest community structure, we examined the differences in species diversity between forest gaps and closed canopy areas for trees and shrubs in three developmental stages (seedling, saplingⅠ, and saplingⅡ) in a typical mixed broadleaved-Korean pine forest. We randomly placed 100 sample plots (2×2 m for seedling and saplingⅠ, and 5×5 m for saplingⅡ) in forest gap and closed canopy areas of a 9 ha permanent sample plot for vegetation surveys of plants of each developmental stage in each habitat type. Even though the formation of forest gaps encouraged the occurrence of gap-dependent species and increased overall species diversity, there were no significant differences in species richness among the three developmental stages for both tree and shrub species (p>0.05). Comparing the two types of sites, statistical tests revealed no difference in species richness for trees, but highly significant differences (p<0.01) between forest types for shrubs for seedlings and saplingⅠ, but not saplingⅡ. Analysis of variance test indicated that there were no significant differences in species diversity among the three developmental stages of tree species (p>0.05) for both Simpson and Shannon indices. The variance for shrub seedlings was significantly different between forest gaps and closed canopy areas, but not for saplingⅠ and saplingⅡ. The analysis showed that the species diversity in forest gaps was significantly different from that of closed canopy areas for seedling and saplingⅠ (p<0.01), but not for saplingⅡ (p>0.05).