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To investigate the optimal harvest time for 6 upper leaves of flue-cured tobacco in southern Hunan tobacco-growing area, the effects of different times (conventional harvest time and 4, S, 12, 16 days after the conventional harvest time) for harvesting the 6 leaves at a time on the economic traits and sensory quality of tobacco leaves were studied. The results showed that the SPAD value, sugar-nicotine ratio and nitrogen-nicotine ratio of tobacco leaves decreased as the harvest time of upper tobacco leaves was delayed. Compared with tobacco leaves harvested at conventional harvest time, the maturity as well as the maturity characteristics and appearance quality could be improved by delaying harvest time properly. The output value and sensory quality of tobacco leaves increased first and then decreased when harvest time was delayed. When harvest time was delayed for 4 days, the output value of the harvested leaves was the highest; while the sensory quality was the highest when delayed for 6-8 days. In consideration of tobacco leaf quality, economic benefits and requirements for cigarette raw material, regression analysis indicated that it was appropriate to harvest 6 upper leaves at a time on the 7th day after the conventional harvest time. [ABSTRACT FROM AUTHOR]

Objective: To explore an early stage repair method for soft tissue defect of limbs of modern firearm wound, and to improve treating result.Methods: Defects of the hind limbs of dogs were repaired with skin, muscle and myocutaneous flaps.Results: Wounds healed within 2 weeks in the experimental group except one that healed in 3 weeks because of infection. Limb function was close to normal. The treatment result was better in the experimental group than the control.Conclusions: Skin, muscle and myocutaneous flaps can cover soft tissue defect at an early stage, prevent and reduce infection, promote the healing and recovery of combined injury, reduce the time of treatment and disability rate. [ABSTRACT FROM AUTHOR]

Objective: To measure anterior cruciate ligament (ACL) by diffusion tensor imaging (DTI), combined with ACL half quantitative measurement magnetic resonance imaging (MRI) method as the contrast, and to preliminarily investigate the feasibility of DTI for ACL., Methods: The ACLs of 31 healthy volunteers were scanned with ordinary MRI and DTI. At ordinary MRI map, sagittal ACL-tibial angle, coronal ACL-tibial angle, Blumensaat line-ACL angle, angle of inclination of the intercondylar roof, and ACL-tibial insertion site were measured. As for DTI analysis of ACL, ACL was divide to 5 portions, namely 1(st), 2(nd), 3(rd), 4(th), 5(th), and all fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values of every portion were recorded and repeated., Results: The sagittal ACL-tibial angle, coronal ACL-tibial angle, Blumensaat line-ACL angle, angle of inclination of the intercondylar roof, and ACL-tibial insertion site were 53.00°±2.46°, 52.42°±5.15°, 12.67°±5.71°, 39.41°±2.64°, (24.90±2.84)%, respectively. FA values of different portions were 0.611±0.042, 0. 618±0.051, 0.596±0.045, 0.566±0.059, and 0.497±0.072. ADC values of 1(st)-5(th) portion were (1.068±0.216), (1.128±0.268), (1.189±0.197), (1.455±0.423), and (1.779±0.384)× 10(-3) mm(2)/s. The correlation coefficient of sagittal ACL-tibial angle and the FA value of 2(nd) and 3(rd) portion was -0.568 and -0.429. The correlation coefficient of Blumensaat line-ACL angle and the FA value of 1(st) and 4(th) portion was -0.507 and -0.633. The correlation coefficient of ACL-tibial insertion site and the FA value of 4(th) portion was -0.593, all with statistical significance. FA and ADC values of all portions in both team's ACL didn't have significant difference (P>0.05), but had obvious correlation., Conclusion: DTI can be used to effectively evaluate the orientation and connection of ACL, having good contrast virtue with ACL half quantitative MRI measurement. It may provide more profound ACL information for clinicians, and it is of great significance for the further research and large sample data base of ACL pathology.

Objective: To explore an early stage repair method for soft tissue defect of limbs of modern firearm wound, and to improve treating result., Methods: Defects of the hind limbs of dogs were repaired with skin, muscle and myocutaneous flaps., Results: Wounds healed within 2 weeks in the experimental group except one that healed in 3 weeks because of infection. Limb function was close to normal. The treatment result was better in the experimental group than the control., Conclusions: Skin, muscle and myocutaneous flaps can cover soft tissue defect at an early stage, prevent and reduce infection, promote the healing and recovery of combined injury, reduce the time of treatment and disability rate.