Three new records from Vietnam,Phlegmariurus guangdongensis Ching,Adiantum longzhouensis A.H.Wang,F.G.Wang&F.W.Xing,and Lepisorus bicolor Ching,are reported.The identification characteristics,information of specim...Three new records from Vietnam,Phlegmariurus guangdongensis Ching,Adiantum longzhouensis A.H.Wang,F.G.Wang&F.W.Xing,and Lepisorus bicolor Ching,are reported.The identification characteristics,information of specimen,and geographical distribution of the species are described.The discovery of new records not only enriches the study of plant diversity in Vietnam,but also provides important information for biodiversity conservation and botanical research in the region.The voucher specimens are kept in the Herbarium of Kunming Institute of Botany,Chinese Academy of Sciences(KUN),Herbarium of Institute of Botany,Chinese Academy of Sciences(PE)and Herbarium of Guangxi Forestry Research Institute(GXFI).展开更多
Bursaphelenchus rainulfi isolated from dead pine trees in Zbejiang, China, is described and illustrated. It also provided some molecular characters of the Chinese population, including the PCR-RFLP and sequences of IT...Bursaphelenchus rainulfi isolated from dead pine trees in Zbejiang, China, is described and illustrated. It also provided some molecular characters of the Chinese population, including the PCR-RFLP and sequences of ITS region and D2-D3 expansion region of the large subunit （LSU） rRNA gene. Both the morphological characters and ITS-RFLP patterns match with the original description. The phylogenetic trees based on the 13 sequences of D2-D3 expansion region of the LSU rRNA gene and ITS region of Bursaphelenchus species were constructed, respectively, with the results showing the similar clades. The phylogenetic relationship based on the molecular data is similar to that with morphological characters. This is the first report of the species on pine wood in eastern China.展开更多
Objective To analyze the influence of segmental pedicle screws versus hybrid instrumentation on the correction results in adolescent idiopathic scoliosis patients undergoing posterior selective thoracic fusion. Metho...Objective To analyze the influence of segmental pedicle screws versus hybrid instrumentation on the correction results in adolescent idiopathic scoliosis patients undergoing posterior selective thoracic fusion. Methods By reviewing the medical records and roentgenograms of adolescent idiopathic scoliosis patients who underwent selective thoracic fusion from February 2000 to January 2007 in our hospital, the patients were divided into 2 groups according to different instrumentation fashions： Group A was hook-screw-rod （hybrid） internal fixation type, Group B was screw-rod （all pedicle screws） internal fixation type, and the screws were used in every segment on the concave side of the thoracic curve. The parameters of the scoliosis were measured and the correction results were analyzed. Results Totally, 48 patients （7 males, 41 females） were included, with an average age of 14.4 years old and a mean follow-up time of 12.3 months. Thirty and 18 patients were assigned to group A and group B, respectively. The mean preoperative coronal Cobb angles of the thoracic curve were 48.8° and 47.4°, respectively. After surgery, they were corrected to 13.7° and 6.8°, respectively. At final follow-up, they were 17.0° and 9.5°, with an average correction rate of 64.6% and 79.0%, respectively, and the correction rate of group B was significantly higher than that of group A （P=0.003）. The mean preoperative coronal Cobb angles of the lumbar curve were 32.6° and 35.2°, respectively. After surgery, they were corrected to 8.6° and 8.3°, respectively. At final follow-up, they were 10.3° and 11.1°, with an average correction rate of 66.8% and 69.9%, respectively, and the correction rate of group B was significantly higher than that of group A （P=0.003）. The correction loss of the thoracic curve and lumbar curve in the 2 groups were 3.1° and 1.8°, 2.4° and 2.4°, respectively. No significant difference was noted （both P〉0.05）. The decompensation rate at final follow-up in these 2 groups were 4% （1/25） and 7.1% （1/14） respectively, with no significant difference （P〉0.05）.展开更多
When recording a hologram,we should control the exposure amount which is in nonlinear area of the characteristic curve of complex amplitude transmittance t-exposure H,the hologram can diffract some higher-order diffra...When recording a hologram,we should control the exposure amount which is in nonlinear area of the characteristic curve of complex amplitude transmittance t-exposure H,the hologram can diffract some higher-order diffracted photograph.The amount of diffracted order has something to do with the recording angle betweenobject beam and reference beam,is concerned with the ship of transmission curve.Theintensity distribution of the higher-order diffracted beam is modulated by the change of phase difference.If the phase difference increased a time,the number of diffracted fringes also increased a time,it is similar to a fringe multipler,that it is obvious to increase the precision of interferometry.Nonlinear recording of double exposure method is discussed,and the formula of intensity distribution of second order diffracted photography,and experimental results are given.展开更多
Objective To explore the clinical efficacy of muscle regions of meridians needling method for refractory facial paralysis affecting different locations.Methods A total of 110 participants were randomized into an obser...Objective To explore the clinical efficacy of muscle regions of meridians needling method for refractory facial paralysis affecting different locations.Methods A total of 110 participants were randomized into an observation group and a control group,with 55 cases in each group.The observation group was treated with muscle regions of meridians needling method,and the control group was treated with conventional facial three-line needling method.The clinical efficacy was evaluated four weeks after the treatment.And the infrared imaging spectra of the two groups were examined.Results The total effective rate of the observation group was higher than that of the control group(P<0.05),and its curative effect for refractory facial paralysis located above the geniculate ganglion was better than that of the control group(P<0.05).The color scale distribution of different disease locations in the two groups varied significantly(P<0.05),the higher the disease location,the higher the occurrence rate of cool zone and low temperature zone.After treatment,the reductions of the facial and periotic temperature difference between the healthy side and the affected side in the observation group were statistically different from those in the control group(P<0.05).Conclusion Muscle regions of meridians needling method has a better effect than facial three-line needling method for refractory facial paralysis.It can promote the microcirculation of the affected side of the face,improve the blood and oxygen supply to local tissues,and thus promote the repair of the peripheral facial nerve.展开更多
Purpose： Rib fractures are the most common skeletal thoracic injuries resulting from blunt chest trauma. Half of the rib fractures are not detected upon a precise physical evaluation and radiographs. Recently ultraso...Purpose： Rib fractures are the most common skeletal thoracic injuries resulting from blunt chest trauma. Half of the rib fractures are not detected upon a precise physical evaluation and radiographs. Recently ultrasonography （USG） has been investigated to detect rib fractures. But based on literature the usefulness of USG varies widely. This study was conducted to investigate the role of USG in the detection of possible rib fractures in comparison with radiography. Methods： In this cross-sectional study, consecutive patients with minor blunt chest trauma and suspected rib fractures presenting in Imam Reza Hospital located in Mashhad-Iran, between April 2013 and October 2013 were assessed by USG and radiography. The radiography was performed in a posteroanterior （PA） chest projection and oblique rib view centered over the area of trauma. The time duration spent in taking USG and radiography were recorded. The prevalence and location of fractures revealed by USG and radiography were compared. Results： Sixty-one suspected patients were assessed. The male to female ratio was 2.4：1 （43 men and 18 women） with a mean ± SD age of （44.3 ± 19.7） years. There were totally 59 rib fractures in 38 （62.3%） patients based on radiography and USG, while 23 （37.7%） patients had no diagnostic evidence of rib lesions. USG revealed 58 rib fractures in 33 （54.1%） of 61 suspected patients and radiographs revealed 32 rib fractures in 20 （32.8%） of 61 patients. A total of 58 （98.3%） rib fractures were detected by USG, whereas oblique rib view and PA chest radiography showed 27 （45.8%） and 24 （40.7%） rib fractures, respectively. The average duration of USG was （12 ± 3） min （range 7e17 min）, whereas the duration of radiography was （27 ± 6） min （range 15-37 min）. The kappa coefficient showed a low level of agreement between both USG and PA chest radiography （kappa coefficient=0.28）, and between USG and oblique rib view （kappa coefficient=0.32）. Conclusion： USG discloses more fractures than radiography in most patients presenting with suspected rib fractures. Moreover USG requires significantly less time than radiography.展开更多
文摘Three new records from Vietnam,Phlegmariurus guangdongensis Ching,Adiantum longzhouensis A.H.Wang,F.G.Wang&F.W.Xing,and Lepisorus bicolor Ching,are reported.The identification characteristics,information of specimen,and geographical distribution of the species are described.The discovery of new records not only enriches the study of plant diversity in Vietnam,but also provides important information for biodiversity conservation and botanical research in the region.The voucher specimens are kept in the Herbarium of Kunming Institute of Botany,Chinese Academy of Sciences(KUN),Herbarium of Institute of Botany,Chinese Academy of Sciences(PE)and Herbarium of Guangxi Forestry Research Institute(GXFI).
基金Project (No.2002C34003) supported by the Science and Technology Department of Zhejiang Province,China
文摘Bursaphelenchus rainulfi isolated from dead pine trees in Zbejiang, China, is described and illustrated. It also provided some molecular characters of the Chinese population, including the PCR-RFLP and sequences of ITS region and D2-D3 expansion region of the large subunit （LSU） rRNA gene. Both the morphological characters and ITS-RFLP patterns match with the original description. The phylogenetic trees based on the 13 sequences of D2-D3 expansion region of the LSU rRNA gene and ITS region of Bursaphelenchus species were constructed, respectively, with the results showing the similar clades. The phylogenetic relationship based on the molecular data is similar to that with morphological characters. This is the first report of the species on pine wood in eastern China.
文摘Objective To analyze the influence of segmental pedicle screws versus hybrid instrumentation on the correction results in adolescent idiopathic scoliosis patients undergoing posterior selective thoracic fusion. Methods By reviewing the medical records and roentgenograms of adolescent idiopathic scoliosis patients who underwent selective thoracic fusion from February 2000 to January 2007 in our hospital, the patients were divided into 2 groups according to different instrumentation fashions： Group A was hook-screw-rod （hybrid） internal fixation type, Group B was screw-rod （all pedicle screws） internal fixation type, and the screws were used in every segment on the concave side of the thoracic curve. The parameters of the scoliosis were measured and the correction results were analyzed. Results Totally, 48 patients （7 males, 41 females） were included, with an average age of 14.4 years old and a mean follow-up time of 12.3 months. Thirty and 18 patients were assigned to group A and group B, respectively. The mean preoperative coronal Cobb angles of the thoracic curve were 48.8° and 47.4°, respectively. After surgery, they were corrected to 13.7° and 6.8°, respectively. At final follow-up, they were 17.0° and 9.5°, with an average correction rate of 64.6% and 79.0%, respectively, and the correction rate of group B was significantly higher than that of group A （P=0.003）. The mean preoperative coronal Cobb angles of the lumbar curve were 32.6° and 35.2°, respectively. After surgery, they were corrected to 8.6° and 8.3°, respectively. At final follow-up, they were 10.3° and 11.1°, with an average correction rate of 66.8% and 69.9%, respectively, and the correction rate of group B was significantly higher than that of group A （P=0.003）. The correction loss of the thoracic curve and lumbar curve in the 2 groups were 3.1° and 1.8°, 2.4° and 2.4°, respectively. No significant difference was noted （both P〉0.05）. The decompensation rate at final follow-up in these 2 groups were 4% （1/25） and 7.1% （1/14） respectively, with no significant difference （P〉0.05）.
文摘When recording a hologram,we should control the exposure amount which is in nonlinear area of the characteristic curve of complex amplitude transmittance t-exposure H,the hologram can diffract some higher-order diffracted photograph.The amount of diffracted order has something to do with the recording angle betweenobject beam and reference beam,is concerned with the ship of transmission curve.Theintensity distribution of the higher-order diffracted beam is modulated by the change of phase difference.If the phase difference increased a time,the number of diffracted fringes also increased a time,it is similar to a fringe multipler,that it is obvious to increase the precision of interferometry.Nonlinear recording of double exposure method is discussed,and the formula of intensity distribution of second order diffracted photography,and experimental results are given.
文摘Objective To explore the clinical efficacy of muscle regions of meridians needling method for refractory facial paralysis affecting different locations.Methods A total of 110 participants were randomized into an observation group and a control group,with 55 cases in each group.The observation group was treated with muscle regions of meridians needling method,and the control group was treated with conventional facial three-line needling method.The clinical efficacy was evaluated four weeks after the treatment.And the infrared imaging spectra of the two groups were examined.Results The total effective rate of the observation group was higher than that of the control group(P<0.05),and its curative effect for refractory facial paralysis located above the geniculate ganglion was better than that of the control group(P<0.05).The color scale distribution of different disease locations in the two groups varied significantly(P<0.05),the higher the disease location,the higher the occurrence rate of cool zone and low temperature zone.After treatment,the reductions of the facial and periotic temperature difference between the healthy side and the affected side in the observation group were statistically different from those in the control group(P<0.05).Conclusion Muscle regions of meridians needling method has a better effect than facial three-line needling method for refractory facial paralysis.It can promote the microcirculation of the affected side of the face,improve the blood and oxygen supply to local tissues,and thus promote the repair of the peripheral facial nerve.
文摘Purpose： Rib fractures are the most common skeletal thoracic injuries resulting from blunt chest trauma. Half of the rib fractures are not detected upon a precise physical evaluation and radiographs. Recently ultrasonography （USG） has been investigated to detect rib fractures. But based on literature the usefulness of USG varies widely. This study was conducted to investigate the role of USG in the detection of possible rib fractures in comparison with radiography. Methods： In this cross-sectional study, consecutive patients with minor blunt chest trauma and suspected rib fractures presenting in Imam Reza Hospital located in Mashhad-Iran, between April 2013 and October 2013 were assessed by USG and radiography. The radiography was performed in a posteroanterior （PA） chest projection and oblique rib view centered over the area of trauma. The time duration spent in taking USG and radiography were recorded. The prevalence and location of fractures revealed by USG and radiography were compared. Results： Sixty-one suspected patients were assessed. The male to female ratio was 2.4：1 （43 men and 18 women） with a mean ± SD age of （44.3 ± 19.7） years. There were totally 59 rib fractures in 38 （62.3%） patients based on radiography and USG, while 23 （37.7%） patients had no diagnostic evidence of rib lesions. USG revealed 58 rib fractures in 33 （54.1%） of 61 suspected patients and radiographs revealed 32 rib fractures in 20 （32.8%） of 61 patients. A total of 58 （98.3%） rib fractures were detected by USG, whereas oblique rib view and PA chest radiography showed 27 （45.8%） and 24 （40.7%） rib fractures, respectively. The average duration of USG was （12 ± 3） min （range 7e17 min）, whereas the duration of radiography was （27 ± 6） min （range 15-37 min）. The kappa coefficient showed a low level of agreement between both USG and PA chest radiography （kappa coefficient=0.28）, and between USG and oblique rib view （kappa coefficient=0.32）. Conclusion： USG discloses more fractures than radiography in most patients presenting with suspected rib fractures. Moreover USG requires significantly less time than radiography.
