Anterior cervical surgery is commonly used for cervical vertebral body lesions. However, the structure of blood vessels and nerve tissues along the route of anterior cervical surgery is complex. We aimed to measure th...Anterior cervical surgery is commonly used for cervical vertebral body lesions. However, the structure of blood vessels and nerve tissues along the route of anterior cervical surgery is complex. We aimed to measure the data of the longus colli, the sympathetic trunk and the cervical sympathetic trunk （CST） ganglia in Chinese cadaver speci- mens. A total of 32 adult cadavers were studied. We delineated the surgical anatomy of the CST. The superior and inferior/cervicothoracic ganglia of the sympathetic trunk consistently appeared. The middle ganglion was observed in 28.1% of the specimens and there were 2 cases of unilateral double middle cervical ganglia. The inferior ganglion was observed in 25.0% of the specimens and the cervicothoracic ganglion was observed in the remaining speci- mens. The distance between the CST gradually decreased from the top to the bottom, and the distance between the medial edges of the longus colli gradually broadened from the top down. The average angle between the bilat- eral CST and the midline of the vertebra was 11.2°± 1.8° on the left side and 10.3°± 1.4° on the right side. The average angle between the medial margins of longus colli of both sides was 11.1°± 1.9°. The CST is at high risk when LC muscle is cut transversely or is dragged heavily, especially at the levels of C6 and C7. Awareness of the regional anatomy of the CST could help surgeons to identify and preserve it during anterior cervical surgeries.展开更多
We are concerned with the Cauchy problem regarding the full compressible Navier-Stokes equations in R^(d)(d=2,3).By exploiting the intrinsic structure of the equations and using harmonic analysis tools(especially the ...We are concerned with the Cauchy problem regarding the full compressible Navier-Stokes equations in R^(d)(d=2,3).By exploiting the intrinsic structure of the equations and using harmonic analysis tools(especially the Littlewood-Paley theory),we prove the global solutions to this system with small initial data restricted in the Sobolev spaces.Moreover,the initial temperature may vanish at infinity.展开更多
In order to reveal the evolution mechanism of repaired morphology and the material's migration mechanism on the crack surface in the process of CO_(2) laser repairing surface damage of fused silica optics, two mul...In order to reveal the evolution mechanism of repaired morphology and the material's migration mechanism on the crack surface in the process of CO_(2) laser repairing surface damage of fused silica optics, two multi-physics coupling mathematical models with different scales are developed, respectively. The physical problems, such as heat and mass transfer,material phase transition, melt flow, evaporation removal, and crack healing, are analyzed. Studies show that material ablation and the gasification recoil pressure accompanying the material splash are the leading factors in forming the Gaussian crater with a raised rim feature. The use of low-power lasers for a long time can fully melt the material around the crack before healing, which can greatly reduce the size of the residual air layer. Combined with the experimental research, the methods to suppress the negative factors(e.g., raised rim, deposited debris, air bubbles) in the CO_(2) laser repairing process are proposed.展开更多
The purpose of this study was to investigate the effect of different dietary coconut oil(CO)levels on growth,antioxidant capacity and lipid metabolism of juvenile large yellow croaker(Larimichthys crocea).Five iso-nit...The purpose of this study was to investigate the effect of different dietary coconut oil(CO)levels on growth,antioxidant capacity and lipid metabolism of juvenile large yellow croaker(Larimichthys crocea).Five iso-nitrogen(45%crude protein)and iso-lipid(13%crude lipid)experimental diets were prepared by replacing 0%(the control),25%,50%,75%and 100%fish oil with coconut oil.The results showed that dietary CO had no significant effect on survival rate(SR.P>0.05).However,the specific growth rate was increased significantly when compared with the control group when fish were fed the diet with 50%CO(P<0.05).The saturated fatty acids were increased significantly with increasing dietary CO in the liver and muscle,whereas the content of n-3 PUFA was decreased significantly(P<0.05).The highest activities of glutathione peroxidase and superoxide dismutase in the liver were recorded in fish-fed diet with 50%CO;conversely,the content of malondialdehyde was significantly decreased(P<0.05).The mRNA expression of peroxisome proliferator-activated receptor a,carnitine palmitoyl transferase 1 and acyl-CoA oxidase reached the highest levels in fish-fed diet with 50%CO.To some extent,this indicated that the rapid oxidation reaction of fatty acids to provide energy may be the reason for the rapid growth of large yellow croaker.In conclusion,fish-fed diet with 50%CO increased the growth rate and antioxidant capacity.Therefore,the optimal replacement level of CO to FO in the diet should be 50%.展开更多
基金supported by National Natural Science Foundation of China(Grant 81171694, 81371968,81401791)a project funded by the Priority Academic Program Development of Jiangsu Higher Education institution
文摘Anterior cervical surgery is commonly used for cervical vertebral body lesions. However, the structure of blood vessels and nerve tissues along the route of anterior cervical surgery is complex. We aimed to measure the data of the longus colli, the sympathetic trunk and the cervical sympathetic trunk （CST） ganglia in Chinese cadaver speci- mens. A total of 32 adult cadavers were studied. We delineated the surgical anatomy of the CST. The superior and inferior/cervicothoracic ganglia of the sympathetic trunk consistently appeared. The middle ganglion was observed in 28.1% of the specimens and there were 2 cases of unilateral double middle cervical ganglia. The inferior ganglion was observed in 25.0% of the specimens and the cervicothoracic ganglion was observed in the remaining speci- mens. The distance between the CST gradually decreased from the top to the bottom, and the distance between the medial edges of the longus colli gradually broadened from the top down. The average angle between the bilat- eral CST and the midline of the vertebra was 11.2°± 1.8° on the left side and 10.3°± 1.4° on the right side. The average angle between the medial margins of longus colli of both sides was 11.1°± 1.9°. The CST is at high risk when LC muscle is cut transversely or is dragged heavily, especially at the levels of C6 and C7. Awareness of the regional anatomy of the CST could help surgeons to identify and preserve it during anterior cervical surgeries.
基金supported by the National Natural Science Foundation of China(11801090 and 12161004)Jiangxi Provincial Natural Science Foundation,China(20212BAB211004)+3 种基金supported by the National Natural Science Foundation of China(12171493)supported by the National Natural Science Foundation of China(11601533)Guangdong Provincial Natural Science Foundation,China(2022A1515011977)the Science and Technology Program of Shenzhen under grant 20200806104726001.
文摘We are concerned with the Cauchy problem regarding the full compressible Navier-Stokes equations in R^(d)(d=2,3).By exploiting the intrinsic structure of the equations and using harmonic analysis tools(especially the Littlewood-Paley theory),we prove the global solutions to this system with small initial data restricted in the Sobolev spaces.Moreover,the initial temperature may vanish at infinity.
基金supported by the National Natural Science Foundation of China (Nos. 51775147 and 51705105)Science Challenge Project (No. TZ2016006-0503-01)Young Elite Scientists Sponsorship Program by CAST (No. 2018QNRC001)。
文摘In order to reveal the evolution mechanism of repaired morphology and the material's migration mechanism on the crack surface in the process of CO_(2) laser repairing surface damage of fused silica optics, two multi-physics coupling mathematical models with different scales are developed, respectively. The physical problems, such as heat and mass transfer,material phase transition, melt flow, evaporation removal, and crack healing, are analyzed. Studies show that material ablation and the gasification recoil pressure accompanying the material splash are the leading factors in forming the Gaussian crater with a raised rim feature. The use of low-power lasers for a long time can fully melt the material around the crack before healing, which can greatly reduce the size of the residual air layer. Combined with the experimental research, the methods to suppress the negative factors(e.g., raised rim, deposited debris, air bubbles) in the CO_(2) laser repairing process are proposed.
基金Acknowledgments This research was supported by the National Science Fund for Distinguished Young Scholars of China[grant number:31525024]the China Agriculture Research System[Grant number:CARS47-11]+2 种基金Aoshan Talents Program Sup ported by Qingdao National Laboratory for Marine Science and Technology[Grant number:2O15ASTP]Key Program of National Natural Science Foundation of China[Grant number:318301031]Scientific and Technological Innovation of Blue Granary[Grant number:2018YFD0900402].
文摘The purpose of this study was to investigate the effect of different dietary coconut oil(CO)levels on growth,antioxidant capacity and lipid metabolism of juvenile large yellow croaker(Larimichthys crocea).Five iso-nitrogen(45%crude protein)and iso-lipid(13%crude lipid)experimental diets were prepared by replacing 0%(the control),25%,50%,75%and 100%fish oil with coconut oil.The results showed that dietary CO had no significant effect on survival rate(SR.P>0.05).However,the specific growth rate was increased significantly when compared with the control group when fish were fed the diet with 50%CO(P<0.05).The saturated fatty acids were increased significantly with increasing dietary CO in the liver and muscle,whereas the content of n-3 PUFA was decreased significantly(P<0.05).The highest activities of glutathione peroxidase and superoxide dismutase in the liver were recorded in fish-fed diet with 50%CO;conversely,the content of malondialdehyde was significantly decreased(P<0.05).The mRNA expression of peroxisome proliferator-activated receptor a,carnitine palmitoyl transferase 1 and acyl-CoA oxidase reached the highest levels in fish-fed diet with 50%CO.To some extent,this indicated that the rapid oxidation reaction of fatty acids to provide energy may be the reason for the rapid growth of large yellow croaker.In conclusion,fish-fed diet with 50%CO increased the growth rate and antioxidant capacity.Therefore,the optimal replacement level of CO to FO in the diet should be 50%.
