Search

Copyright of Geomatics & Information Science of Wuhan University is the property of Geomatics & Information Science of Wuhan University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Engineering Science Research & Application is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Engineering Management & Technology Discussion is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Mechanical Engineering is the property of Editorial Board of China Mechanical Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Automotive Digest is the property of Automotive Digest Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Using bran, indianmeal, Cordyceps militaris chaff as raw material, with 7 different proportions as feed of Tenebrio molitor, we investigated its growth and development indicators including length, weight and head breadth of larva, pupal weight, percentage of pupation, develomental duration of pupal, death rate of larva and pupa, hatching rate, developmental duration of larvae, emergence rate. The results showed that different treatments of Cordyceps militaris chaff had significant effect on the indicators including weight and head breadth of larva, pupal weight, percentage of pupation and developmental duration of larvae, but no significant effect on larva length, develomental duration of pupal, death rate, hatching rate, and emergence rate. The best effect was observed when feeding 30% of Cordyceps militaris chaff, referring to the indicators including head breadth of larva, pupal weight, developmental duration of pupal, percentage of pupation, death rate and emergence rate [ABSTRACT FROM AUTHOR]

Copyright of Journal of Geodesy & Geodynamics (1671-5942) is the property of Editorial Board Journal of Geodesy & Geodynamics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To investigate the expression and significance of miR-409-3p in hepatoma carcinoma cell lines and possible molecular mechanism. Methods Quantitative real-time PCR was used to measure the expression of miR-409-3p in normal LO2 hepatocytes and four hepatoma cell line (HepG2, BEL-7402, SMMC-7721, and MHCC-97H). Hepatoma HepG2 cells were transiently transfected with miR-409-3p mimics and microRNA mimics control using the cationic liposome method, and then CCK8, plate colony formation assay, and flow cytometry were used to observe the effect of miR-409-3p on the proliferation, cell cycle, and apoptosis of hepatoma cells in vitro. Western blot was used to measure the change in the expression of c-Met protein in HepG2 cells with overexpression of miR-409-3p, and luciferase reporter gene assay was used to identify targeting relationship. The independent-samples t test was used for comparison between two groups, and a one-way analysis of variance was used for comparison between multiple groups, followed by the SNK test. Results Based on the TCGA microRNA expression profile data of liver cancer, the expression level of miR-409-3p in liver cancer tissue was significantly lower than that in adjacent tissue (t=7.752, P＜0.05). Compared with the LO2 cells, the HepG2, SMMC-7721, MHCC-97H, and BEL-7402 cells had a significant reduction in the expression level of miR-409-3p (F=31.043, P＜0.05). Compared with the miR-con group, the HepG2 cells transfected with miR-409-3p mimics had a significant increase in the expression level of miR-409-3p (t=-8.836, P＜0.05), suggesting that the interference was effective. CCK8 assay showed that compared with the miR-con group, the HepG2 cells transfected with miR-409-3p mimics had a significant reduction in proliferative capacity at 48, 72, and 96 hours (t=2.876, 3.359, and 3.707, all P＜0.05). Plate colony formation assay showed that the miR-409-3p mimics group had a significantly lower plating efficiency than the miR-con group (t=2.846, P=0.047). Flow cytometry showed that compared with the miR-con group, overexpression of miR-409-3p resulted in the increased number of HepG2 cells in G2 phase (t=-3.763, P＜0.05), while there was no significant difference in apoptosis rate (t=0.714, P=0.515). Luciferase reporter gene assay showed that c-Met was a target gene of miR-409-3p (t=4.970, P=0.007). Compared with the miR-con group, the HepG2 cells transfected with miR-409-3p mimics had a significant reduction in the expression of c-Met protein (t=-8.509, P=0.001). Conclusion By inhibiting the protein expression of c-Met, miR-409-3p regulates downstream signaling pathways to induce cell cycle arrest in G2 phase and thus inhibits the proliferation of hepatoma HepG2 cells. [ABSTRACT FROM AUTHOR]

Copyright of Railway Construction Technology is the property of Railway Construction Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geomatics & Information Science of Wuhan University is the property of Geomatics & Information Science of Wuhan University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Railway Standard Design is the property of Railway Standard Design Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Geodesy & Geodynamics (1671-5942) is the property of Editorial Board Journal of Geodesy & Geodynamics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of National University of Defense Technology / Guofang Keji Daxue Xuebao is the property of NUDT Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aiming at the serious problem of de - coherence in the forest classification of the C - band synthetic aperture radar im¬age in conjunction with the optical image, a method of averaging coherence coefficient images in multiple periods in winter obtained by coherent imaging of similar time - phase radar images is proposed to effectively suppress the de - coherence phenomenon to obtain co¬herence coefficient images related to forest tree species. This paper uses the Sentinel - 1 backscattering intensity, coherence coefficient and JL101A image to classify the tree species of the moon lake national forest park in Changchun. The results show that when using on¬ly JL101A for classification, the overall classification accuracy is 82. 3% , Kappa coefficient is 0. 79； when using JL101A data and Sentinel - 1 intensity data for classification, the overall classification accuracy is 85.2% , and the Kappa coefficient is 0. 825 ； when u- sing JL101A data, Sentinel -1 intensity data and coherence data for classification, the overall classification accuracy is 87. 8% , and the Kappa coefficient is 0. 855. After using JL101A data, Sentinel - 1 intensity data and coherence data to classify, compared with u- sing only JL101A data, the precision of user accuracy is increased from 59% to 72%. It shows that the optical image combined with the effective coherence coefficient and backscattering intensity of C band synthetic aperture radar image can improve the classification accuracy of forest tree species. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agricultural Science & Technology (1008-0864) is the property of Journal of Agricultural Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to solve the problem of poor noise immunity in the existing individual tree detection algorithm, a individual tree detection algorithm based on voxel cover density of double scale was proposed in this paper. Firstly, the natural secondary forest of Larix gmelinii in Inner Mongolia Genhe Forest was selected as the research object, and the single-test site cloud data was obtained by using the Leica C10 3D laser scanner. Non-trunk points were filtered out by calculated voxel cover density of double scale, and then the individual tree positions were determined by analyzed the z-value sequence in the voxel horizontal coordinated (x,y). The experiment results showed that the average noise ratio of the secondary filtering result was 1.66%; the number of trees after filtering accounted for 88.94% of the number of all the trees; the individual tree recognition rate was 98.3% in the filtered point cloud data, the missed rate was 1.69%, the more detected rate was 0.56%, and finally the individual tree identification accuracy was 87.43% in the raw data. Compared with the existing research of individual tree identification in single-scan point cloud data, the individual tree detection algorithm of TLS point cloud data based on voxel cover density of double scale proposed in this paper was strong to noise and the detection accuracy of individual tree was high which is very important to realize the accurate individual tree detection of single-scan point cloud data in complex and dense forest stand. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to study the feasibility of inverting leaf water content from SAR images combined with optical images, the paper takes the moon lake national forest park in Changchun City, Jilin Province as the study area, and uses Sentinel-1B and Landsat 8 OLI remote sensing images and the leaf water content obtained through field investigation as the data source. Through the correlation analysis, the band combinations and vegetation indices with large correlation with the leaf water content are selected and the principal components are extracted. The linear, quadratic polynomial, cubic polynomial and exponential models between the principal components and the leaf water content are established. Finally, the paper uses the model with the highest precision to reverse the leaf water content of the moon lake national forest park. The results show that: Sentinel-1B VV polarization, VH / VV polarization ratio and OLI sensor short wave infrared 1 band, short wave infrared 2 band, the normalized difference water index (NDWI), the ratio vegetation index (RVI) have large correlation with leaf water content. The principal components extracted from the combination of Sentinel-1B and Landsat8 OLI data are more correlated with leaf water content than Landsat8 OLI data alone. The cubic polynomial model in the inversion model established using the extracted principal components and leaf water content has the highest fitting accuracy (R2=0.6299, RMSE=0.0358). It shows that Sentinel-1B combined with Landsat8 OLI data can better reverse the leaf water content of coniferous forest. [ABSTRACT FROM AUTHOR]

Ｏｂｊｅｃｔｉｖｅ　Ｔｏ ｉｎｖｅｓｔｉｇａｔｅ ｔｈｅ ｐｒｅｓｅｎｃｅ， ｂｉｏｌｏｇｉｃａｌ ｆｅａｔｕｒｅｓ， ａｎｄ ｃｌｉｎｉｃａｌ ｓｉｇｎｉｆｉｃａｎｃｅ ｏｆ ｍｙｅｌｏｉｄ⁃ｄｅｒｉｖｅｄ ｓｕｐｐｒｅｓｓｏｒ ｃｅｌｌｓ （ＭＤＳＣｓ） ｉｎ ｂｒｅａｓｔ ｃａｎｃｅｒ ｐａｔｉｅｎｔｓ． Ｍｅｔｈｏｄｓ　Ｅｉｇｈｔｙ⁃ｆｏｕｒ ｃａｓｅｓ ｏｆ ｂｒｅａｓｔ ｃａｎｃｅｒ， ３７ ｃａｓｅｓ ｏｆ ｂｅｎｉｇｎ ｂｒｅａｓｔ ｔｕｍｏｒ ａｎｄ ２１ ｃａｓｅｓ ｏｆ ｈｅａｌｔｈｙ ｉｎｄｉｖｉｄｕａｌｓ ｗｅｒｅ ｉｎｃｌｕｄｅｄ ｉｎ ｔｈｉｓ ｓｔｕｄｙ． Ｓａｍｐｌｅｓ ｏｆ ｐｅｒｉｐｈｅｒａｌ ｂｌｏｏｄ （２ ｍｌ） ｗｅｒｅ ｃｏｌｌｅｃｔｅｄ， ａｎｄ ｉｎ ｔｈｅ ｂｒｅａｓｔ ｃａｎｃｅｒ ｐａｔｉｅｎｔｓ， ｂｌｏｏｄ ｓａｍｐｌｅｓ ｗｅｒｅ ｔａｋｅｎ ｂｏｔｈ ｂｅｆｏｒｅ ａｎｄ ａｆｔｅｒ ｔｒｅａｔｍｅｎｔ． Ｆｌｏｗ ｃｙｔｏｍｅｔｒｙ ｕｓｉｎｇ ａｎｔｉ⁃ＣＤ１１ｂ， ＣＤ３３， ＣＤ１４ ａｎｄ ＨＬＡ⁃ＤＲ ａｎｔｉｂｏｄｙ ｗａｓ ｃｏｎｄｕｃｔｅｄ ｔｏ ｉｄｅｎｔｉｆｙ ｔｈｅ ｕｎｉｑｕｅ ｍｅｍｂｒａｎｅ ｍａｒｋｅｒｓ ｏｆ ＭＤＳＣｓ， ａｎｄ ｓｔａｔｉｓｔｉｃａｌ ａｎａｌｙｓｉｓ ｗａｓ ｐｅｒｆｏｒｍｅｄ ｔｏ ｅｘｐｌｏｒｅ ｔｈｅ ｒｅｌａｔｉｏｎｓｈｉｐ ｂｅｔｗｅｅｎ ＭＤＳＣｓ ａｎｄ ｃｌｉｎｉｃａｌ ｆａｃｔｏｒｓ． Ｃｅｌｌ ｉｓｏｌａｔｉｏｎ ａｎｄ ｉｎ ｖｉｔｒｏ ａｓｓａｙ ｗｅｒｅ ｕｓｅｄ ｔｏ ｔｅｓｔ Ｔ ｃｅｌｌ ｆｕｎｃｔｉｏｎ． Ｒｅｓｕｌｔｓ　ＣＤ１１ｂ＋ ＣＤ３３＋ ＣＤ１４－ ＭＤＳＣｓ ｗｅｒｅ ｐｒｅｓｅｎｔ ｉｎ ｔｈｅ ｂｌｏｏｄ ｏｆ ｂｒｅａｓｔ ｃａｎｃｅｒ ｐａｔｉｅｎｔｓ， ａｎｄ ｔｈｅｓｅ ＭＤＳＣｓ ｗｅｒｅ ｈｉｓｔｏｌｏｇｉｃａｌｌｙ ｏｆ ｍｏｎｏｎｕｃｌｅａｒ ｃｅｌｌｓ． Ｃｅｌｌ ｐｒｏｌｉｆｅｒａｔｉｏｎ ａｓｓａｙ ｃｏｎｆｉｒｍｅｄ ｔｈａｔ ＭＤＳＣｓ ｉｎｈｉｂｉｔｅｄ ｐｒｏｌｉｆｅｒａｔｉｏｎ ｏｆ ｈｏｍｏｌｏｇｏｕｓ Ｔ ｃｅｌｌｓ ｉｎ ｖｉｔｒｏ． ＭＤＳＣｓ ｌｅｖｅｌｓ ｉｎ ｐａｔｉｅｎｔｓ ｗｉｔｈ ｂｒｅａｓｔ ｃａｎｃｅｒ， ｂｅｎｉｇｎ ｄｉｓｅａｓｅ ａｎｄ ｔｈｅ ｈｅａｌｔｈ ｃｏｎｔｒｏｌ ｗｅｒｅ （１５．９３±３．１７）％， （８．９２±４．４２）％ ａｎｄ （５．０２±２．７５）％， ｒｅｓｐｅｃｔｉｖｅｌｙ， ｗｉｔｈ ａ ｓｔａｔｉｓｔｉｃａｌｌｙ ｓｉｇｎｉｆｉｃａｎｔ ｄｉｆｆｅｒｅｎｃｅ （Ｐ ＜０．００１） ｂｅｔｗｅｅｎ ｂｒｅａｓｔ ｃａｎｃｅｒ ｐａｔｉｅｎｔｓ ａｎｄ ｔｈｅ ｏｔｈｅｒ ｓｕｂｊｅｃｔｓ （ｐａｔｉｅｎｔｓ ｗｉｔｈ ｂｅｎｉｇｎ ｌｅｓｉｏｎｓ ａｎｄ ｈｅａｌｔｈｙ ｃｏｎｔｒｏｌｓ）． Ｔｈｅ ｅｘｐｒｅｓｓｉｏｎ ｌｅｖｅｌ ｏｆ ＭＤＳＣｓ ｉｎ ｐａｔｉｅｎｔｓ ｗｉｔｈ ｂｒｅａｓｔ ｃａｎｃｅｒ ｗａｓ ａｓｓｏｃｉａｔｅｄ ｗｉｔｈ ｓｕｒｇｉｃａｌ ｔｒｅａｔｍｅｎｔ， ｂｕｔ ｎｏｔ ｗｉｔｈ ａｇｅ， ｄｉｓｅａｓｅ ｓｔａｇｅ， ｌｙｍｐｈ ｎｏｄｅ ｍｅｔａｓｔａｓｉｓ， ＥＲ ｏｒ ＰＲ ｅｘｐｒｅｓｓｉｏｎ． ＭＤＳＣｓ ｌｅｖｅｌｓ ｗｅｒｅ ｓｉｇｎｉｆｉｃａｎｔｌｙ ｌｏｗｅｒ ｉｎ ｐｏｓｔ⁃ｏｐｅｒａｔｉｖｅ ｐａｔｉｅｎｔｓ［（７．８３±３．７８） ％］ ｔｈａｎ ｔｈｅ （１５．３７±２．４９） ％ ｉｎ ｐａｔｉｅｎｔｓ ｂｅｆｏｒｅ ｓｕｒｇｅｒｙ （Ｐ＜０．００１）． Ｃｏｎｃｌｕｓｉｏｎｓ　Ｔｈｅ ｒｅｓｕｌｔｓ ｏｆ ｔｈｉｓ ｓｔｕｄｙ ｄｅｍｏｎｓｔｒａｔｅ ｔｈａｔ ＭＤＳＣｓ ａｒｅ ｐｒｅｓｅｎｔ ｉｎ ｔｈｅ ｐｅｒｉｐｈｅｒａｌ ｂｌｏｏｄ ｏｆ ｂｒｅａｓｔ ｃａｎｃｅｒ ｐａｔｉｅｎｔｓ ａｎｄ ｔｈｅ ｌｅｖｅｌ ｏｆ ＭＤＳＣｓ ｉｓ ａｓｓｏｃｉａｔｅｄ ｗｉｔｈ ｓｕｒｇｉｃａｌ ｔｒｅａｔｍｅｎｔ． Ｏｕｒ ｆｉｎｄｉｎｇｓ ｓｕｇｇｅｓｔ ｔｈａｔ ＣＤ１１ｂ＋ ＣＤ３３＋ ＣＤ１４－ ＭＤＳＣｓ ａｒｅ ｌｉｋｅｌｙ ｉｎｖｏｌｖｅｄ ｉｎ ｂｒｅａｓｔ ｃａｎｃｅｒ ｉｎｉｔｉａｔｉｏｎ ａｎｄ ｄｅｖｅｌｏｐｍｅｎｔ， ａｎｄ ｍａｙ ｂｅｃｏｍｅ ａ ｎｏｖｅｌ ｂｉｏｍａｒｋｅｒ ｔｏ ｆａｃｉｌｉｔａｔｅ ｄｉａｇｎｏｓｉｓ ａｎｄ ｔｏ ｐｒｅｄｉｃｔ ｃｌｉｎｉｃａｌ ｏｕｔｃｏｍｅｓ ｏｆ ｂｒｅａｓｔ ｃａｎｃｅｒ． [ABSTRACT FROM AUTHOR]

Objective To evaluate the safety and efficacy of therapeutic endoscopic retrograde cholangiopancreatography (ERCP) in very elderly patients (85 years or older) with common bile duct stones. Methods A retrospective study was conducted on 150 patients with common bile duct stones who underwent ERCP in the Second Affiliated Hospital of Nanjing Medical University between January 2013 and December 2014. The subjects were divided into two groups: very elderly group of 50 patients aged 85 or above and non-elderly group of 100 patients aged 60 or below. Postoperative vital signs were closely monitored. Symptoms such as fever and abdominal pain were recorded. Blood test was performed and the level of serum amylase was determined at 3 and 24 h after ERCP. The treatment success rate, success rate of stone removal in one setting, and incidence rate of complications in the two groups were compared by chi-square test. Results The treatment success rate in very elderly group (98.0％) was similar to that in non-elderly group (99.0％) (χ2=0.253, P＞0.05). The success rate of stone removal in one setting in very elderly group (70.0％) was significantly lower compared with that in non-elderly group (91.0％) (χ2=10.938, P＜0.05). The incidence rate of complications in very elderly group (8.0%) was similar to that in non-elderly group (12.0％) (χ2=0.560, P＞0.05). Conclusion Therapeutic ERCP is an effective and safe method for the treatment of common bile duct stones in very elderly patients and can be recommended as the first choice of treatment. [ABSTRACT FROM AUTHOR]