AIM：To study the operativ injury,post-operative complications,the hospitalization time,the post-operative survival rate of ultrasonic aspiration hepatectomy with a domestic new type of ultrasonic surgical device in c...AIM：To study the operativ injury,post-operative complications,the hospitalization time,the post-operative survival rate of ultrasonic aspiration hepatectomy with a domestic new type of ultrasonic surgical device in comparison with that of conventional techniques of hepatectomy.METHODS:A total136patients with hepatocellular carcinoma(HCC,including 13patinents in 1991and 124consecutive patients from July1995to December2000)underwent ultrasonic aspiration in liver resection(groupT)and 179 HCCpatients received conventional hepatectomy during the corresponding period(groupC).The results of the two groups were compared statistically.RESULTS:There was no significant difference in the mean operation time between groupT(152±11min)and C(144±11min).No operation or hospital edath occurred in both groups.In groupT,the mean volumes of bleeding(463±15ml)and bolld transfusion(381±12ml)were markedly less than those in groupC(557±20ml,and507±18ml,respectively,P<0.05).The mean hospitalization time of groupT(8.9±0.6d)was markedly shorter than that of groupC(11.7d±0.6d)(P<0.05).The incidence of complications in groupTwas markedly lower than in groupC,post-operative jaundice occurred in4/136and31/179,respectively(P<0.05).liver failurein0/136and2/179,cholorrhea in0/136and6/179,hydrothoraxin21/136and39/179(P<0.05).ascices in9/136and2/179,cholrrheain0/136and6/179,hydrothorax in21/136and 39/179(P<0.05),ascices in 9/136and 54/179,respectively(P<0.05),while the 3-year survival rate of groupT(64.2%)increased markedly as compared with that of groupC(55.7%)(P<0.01).CONCLUSION:The ultrasonic aspiration hepatectomy with a domestic new type of ultrasonic surgical device could evidently reduce the operative injury and post-operative complications,shorten the hospitalization,time and prolong the survivals of HCC,patients.展开更多
Hybrid tilapia were reared at densities of 1, 5 or 10 fish per tank for four weeks. Mortality was 0 at 1 and 10 fish per tank, but was 25% at 5 fish per tank. Specific growth rate was highest at 1 fish per tank, and l...Hybrid tilapia were reared at densities of 1, 5 or 10 fish per tank for four weeks. Mortality was 0 at 1 and 10 fish per tank, but was 25% at 5 fish per tank. Specific growth rate was highest at 1 fish per tank, and lowest at 5 fish per tank. The lower growth rate at the intermediate stocking density was associated with reduced feed efficiency, but there was no reduction in feed intake or digestibility. The results suggested increased metabolic cost caused by aggressive behaviour at intermediate stocking density, which can be suppressed by a further increase in density.展开更多
Ammonium tetramolybdate ( NH4 )4[(MoO2)4O3 (R-mal)2]·6H2O(mal= malic acid)and (NH4)4[(MoO2)4O3(S-mal)2)·6H2O have been prepared by the reaction of R and S-malic acid with ammonium heptamolybdate, respectivel...Ammonium tetramolybdate ( NH4 )4[(MoO2)4O3 (R-mal)2]·6H2O(mal= malic acid)and (NH4)4[(MoO2)4O3(S-mal)2)·6H2O have been prepared by the reaction of R and S-malic acid with ammonium heptamolybdate, respectively. The two complexes are enantiomeric and isomorphous. The complex of Risomer crystallizes in monoclinic space group C2 with unit cell parameters:a = 14. 591 (2 ), b = 10. 108(2), c=11. 464(2), β=121. 48(1)°, V=1441. 9(4),Z=2, Fω=1002. 13, Dc=2. 308, Dm=2. 3 g/cm3. F(000) = 988, MoKα radiation (λ=0. 71073 ), μ (MoKα) = 17. 7 cm-1. Final R=0. 027 for 1491 reflections with I>2. 5 σ(I). Analysis of molecular structure reveals that the complex anion contains a (Mo2O5)O(Mo2O5)core with the bridging oxo-group passing through two-fold axis. Each molybdenum is hexacoordinated , and the malate ligand is quadridentated to two molybdenum atoms by the deprotonated hydroxy-, α- and β-carboxylate groups. Principal dimensions are:[Mo=O(t)]av, 1. 705(6); [Mo-O(b)]av, 1. 920(6); Mo-O(hydroxy). 1. 925(6);Mo-O(α-carboxy), 2. 226 (6), and [Mo-O(β-carboxy)av, 2. 296 (5).Lattice water is distributed throughout the cell and together with various types of the anion oxygens, making H-bonding.展开更多
文摘AIM：To study the operativ injury,post-operative complications,the hospitalization time,the post-operative survival rate of ultrasonic aspiration hepatectomy with a domestic new type of ultrasonic surgical device in comparison with that of conventional techniques of hepatectomy.METHODS:A total136patients with hepatocellular carcinoma(HCC,including 13patinents in 1991and 124consecutive patients from July1995to December2000)underwent ultrasonic aspiration in liver resection(groupT)and 179 HCCpatients received conventional hepatectomy during the corresponding period(groupC).The results of the two groups were compared statistically.RESULTS:There was no significant difference in the mean operation time between groupT(152±11min)and C(144±11min).No operation or hospital edath occurred in both groups.In groupT,the mean volumes of bleeding(463±15ml)and bolld transfusion(381±12ml)were markedly less than those in groupC(557±20ml,and507±18ml,respectively,P<0.05).The mean hospitalization time of groupT(8.9±0.6d)was markedly shorter than that of groupC(11.7d±0.6d)(P<0.05).The incidence of complications in groupTwas markedly lower than in groupC,post-operative jaundice occurred in4/136and31/179,respectively(P<0.05).liver failurein0/136and2/179,cholorrhea in0/136and6/179,hydrothoraxin21/136and39/179(P<0.05).ascices in9/136and2/179,cholrrheain0/136and6/179,hydrothorax in21/136and 39/179(P<0.05),ascices in 9/136and 54/179,respectively(P<0.05),while the 3-year survival rate of groupT(64.2%)increased markedly as compared with that of groupC(55.7%)(P<0.01).CONCLUSION:The ultrasonic aspiration hepatectomy with a domestic new type of ultrasonic surgical device could evidently reduce the operative injury and post-operative complications,shorten the hospitalization,time and prolong the survivals of HCC,patients.
文摘Hybrid tilapia were reared at densities of 1, 5 or 10 fish per tank for four weeks. Mortality was 0 at 1 and 10 fish per tank, but was 25% at 5 fish per tank. Specific growth rate was highest at 1 fish per tank, and lowest at 5 fish per tank. The lower growth rate at the intermediate stocking density was associated with reduced feed efficiency, but there was no reduction in feed intake or digestibility. The results suggested increased metabolic cost caused by aggressive behaviour at intermediate stocking density, which can be suppressed by a further increase in density.
文摘Ammonium tetramolybdate ( NH4 )4[(MoO2)4O3 (R-mal)2]·6H2O(mal= malic acid)and (NH4)4[(MoO2)4O3(S-mal)2)·6H2O have been prepared by the reaction of R and S-malic acid with ammonium heptamolybdate, respectively. The two complexes are enantiomeric and isomorphous. The complex of Risomer crystallizes in monoclinic space group C2 with unit cell parameters:a = 14. 591 (2 ), b = 10. 108(2), c=11. 464(2), β=121. 48(1)°, V=1441. 9(4),Z=2, Fω=1002. 13, Dc=2. 308, Dm=2. 3 g/cm3. F(000) = 988, MoKα radiation (λ=0. 71073 ), μ (MoKα) = 17. 7 cm-1. Final R=0. 027 for 1491 reflections with I>2. 5 σ(I). Analysis of molecular structure reveals that the complex anion contains a (Mo2O5)O(Mo2O5)core with the bridging oxo-group passing through two-fold axis. Each molybdenum is hexacoordinated , and the malate ligand is quadridentated to two molybdenum atoms by the deprotonated hydroxy-, α- and β-carboxylate groups. Principal dimensions are:[Mo=O(t)]av, 1. 705(6); [Mo-O(b)]av, 1. 920(6); Mo-O(hydroxy). 1. 925(6);Mo-O(α-carboxy), 2. 226 (6), and [Mo-O(β-carboxy)av, 2. 296 (5).Lattice water is distributed throughout the cell and together with various types of the anion oxygens, making H-bonding.
