解肌蠲痛汤为主治疗肩关节周围炎疗效观察

目的:观察解肌蠲痛汤为主治疗肩关节周围炎的临床疗效。方法:将120例肩关节周围炎患者随机分为治疗组和对照组。治疗组在对照组治疗基础上予中药解肌蠲痛汤,1天1贴,水煎分2次温服,10天为1个疗程。对照组采用特定电磁波治疗器在肩关节周围照射,1个部位每次30 min,1天2次,10天为1个疗程。3个月天后对两组患者治疗综合结果进行评定,评定内容包括:①疼痛治疗前后程度视觉模拟评分法(Visual Analogue Scale/Score,VAS)评定;②临床疗效评定。结果:治疗2~3个疗程后,两组在缓解肩周围疼痛、改善肩关节功能、临床疗效等比较无统计学意义,但治疗组总有效率与对照组总有效率比较经统计学方法,差异有显著意义(P<0.05)。结论:治疗组较对照组疗效好,功能改善明显。

Geological event sequences of the Permian-Triassic transition recorded in the microfacies in Meishan section

The microfacies sequence in the key interval of Beds 24―29 of the Meishan section comprehensively recorded the geological events during the Permian-Triassic transition, including the anoxia, storm disturbance, hard-ground/firm-ground form, volcanic eruption, weathering input, and microbialite development. This investigation of event sequences on the microfacies provided synthetically some clues to clarifying the previously proposed mechanisms of the end-Permian extinction. The deposit succession in Bed 24 of the Changxing Formation was developed dominantly with organic-rich lamina, but interrupted intermittently by storm disturbances. It indicates characteristically a stagnated, stratified and anoxic ocean during the latest Permian. The latest Permian transgression occurred rapidly at the top of Bed 24d and was characterized by the hard-ground interface. Abundant clay mineral of illite indicates the occurrence of persistent weathering of continental volcanics and then buried in ocean throughout this key Permo-Triassic transitional interval. However, the "boundary ash clay" of Bed 25 yielding normal grading of hyaloclastite was the result of precipitation of volcanic dusts. The firm-ground substrate in Unit 27-2 was lithe and excavated intensively by trace fossil Glossifungites; it means also the occurrence of the earliest Triassic rapid transgression and coincides with the first appearance of conodont Hindeodus parvus. Dune-shaped microbialite in Unit 27-5 defines biostrati-graphically that its development, especially in the carbonate platform of South China, should corre-spond to the earliest Triassic; and it also indicates the final episode of the end-Permian extinction event.

Sedimentary features of the Permian-Triassic boundary sequence of the Meishan section in Changxing County,Zhejiang Province

The Global Stratotype Section and Point(GSSP) for the Permian-Triassic boundary was placed in Bed 27 of Meishan section D where the conodont species Hindeodus parvus first occurs.Bed 27 was usually considered comprising continuouslydeposited,homogeneous silty limestone,with no depositional hiatus near the boundary.Detailed study on the boundary sequence revealed that a typical firmground characterized by Glossifungites ichnofacies developed about 2 cm below the Permian-Triassic boundary in Bed 27.Fossil content and lithology show apparent differences across the firmground crust.The abundance of the Permian bioclasts decreases significantly across the firmground,and is accompanied by a shift of dominating carbonate precipitation from calcite to dolomite.The firmground marked a rapid transgression at the very end of the Late Permian and significant shifts of sedimentary environment and paleoclimate.This transgressive submerging surface is also observed at the Huangzhishan section of the shallow-water carbonate platform facies in Zhejiang Province,the Jiangya section of the lower-slope to basinal-margin facies in Hunan Province,the Pingdingshan section of the basinal facies in Anhui Province of South China,as well as the Selong section in Tibet of the northern peri-Gondwana.The transgressive submerging surface marks the onset of a rapid global transgression at the latest Permian.

bPermian, Lopingian, strontium isotopic ratio, conodont zone, marine carbonate, stable isotope chemostratigraphy

The Lopingian is one of the fastest rising periods of seawater strontium isotopic ratios （^87Sr/^86Sr） in earth history, and its mechanisms and increasing rates of the ^87Sr/^86Sr evolution were still disputed widely. These disputations among researchers were caused mainly by timeframe selection （sections＇ thickness or data of radiometric ages）, and different stratigraphic boundaries and un-upmost dated ages. This paper examined published ^87Sr/^86Sr data of the Lopingian, and projected them on timescales based on evolutionary and age constrained conodonts fossils. ^87Sr/^86Sr evolution vs fossil constraining timescales was re-established in this period. This research suggests： （1） ^87Sr/^86Sr excursion projects on fossil zones can truly support ^87Sr/^86Sr evolutionary pattern in the period; （2） ^87Sr/^86Sr evolution provides a new approach for stratigraphic research of marine carbonate sections in lieu of biostratigraphic data; （3） ^87Sr/^86Sr stratigraphy works on marine carbonate sections of different sedimentation rates even between different basins; （4） the ^875r/^86Sr data and its shift was dependent on samples materials and chemical treatment methods; （5） the increasing rate of marine water ^875r/^86Sr in the Late Permian is suggested as 5.4× 10^-5/Ma or slightly lower; （6） sedimentation age and its ^875r/^86Sr of the Lopingian marine carbonate suggested as： Dpro=259-（Rs- 0.70695）/5.4×10^-5 （Ma）.

Statures in Han populations of China

Dear Editor, Shortly after initiating the ＂Physical Anthropological Re- search on Han Chinese＂ research project, we applied uni- form sampling methods as well as methods and instruments of measurement to obtain a complete set of measurements of physical anthropological indicators among Han popula- tions across China. Among these measurements, body stat- ure was a key indicator. Currently, there should be reliable and complete basic data of stature around the Chinese peo- ple. We analyzed the current status of statures among Han adults.