一个原始的苔类的目——藻苔目在中国的发现

 1961, a Japanese specimen of liverworts was named as Takakia lepidozioides by Hattori and Inoue and they treated it to establish a new order Takakiales.  1963, “Le- pidozia ceratophylla” was determined by Grolle as the second  species  of Takakia. Hitherto, they were found in Japan, Malaysia, Nepal, Sikkim, Aleutian Island and the Queen Charlotte Islands separately.  1980, 1982, Wang Mei-zhi collected Takakia lepi- dozioides in the forest ground of Abies delavaya in Bomi and Zayii, Xizang. According to it's features, it is apparet that Takakialens is the most primitive one in liverworts,perhaps it could be treated as a kind of “living fossil”.     

TEMPLES OF MATSU IN GUIZHOU

Matsu, or the Goddess of Sea is widely worshipped in coastal areas of China and temples are built in these areas to enshrine statues of Matsu or Heavenly Queen. But it is quite interesting that there are quite a few Matsu temples in the inland province of Guizhou. Among these temples, the Heavenly Queen temple in Zhenyuan County is the largest, best-preserved and finest-built one and proclaimed as a site under the province-level protection.     

Improving High School–College Alignment: A Sociological Reform and New Challenges

This paper analyzes teacher responses to a distinctive reform that sought to ­implement alignment between high schools and colleges. A survey of 225 teachers is used to examine teachers’ perceptions of the reform’s effectiveness, further resources needed, and how perceptions changed over time. The reform was perceived as effective for college-bound students, but not for non-college-bound students, magnifying the discrepant needs of these groups. Steps to improve the program are suggested.     

Application of cDNA array for studying the gene expression profile of mature appressoria of Magnaporthe grisea

Appressorium is an infection structure of the phytopathogenic fungus Magnaporthe grisea. Analysis of gene expression profiles ofappressorium development provides insight into the molecular basis of pathogenicity and control of this fungal plant disease. A cDNA array representing 2927 unique genes based on a large EST （expressed sequence tag） database ofM. grisea strain Y34 was constructed and used to profile the gene expression patterns at mycelium and appressorium maturation stages. Compared with mycelia, 55 up-regulated and 22 down-regulated genes were identified in mature appressoria. Among 77 genes, 16 genes showed no similarity to the genome sequences of M. grisea. A novel homologue of peptidyl-prolyl cis-trans isomerase was found to be expressed at low-level in mature appressoria of M. grisea. The results indicated that the genes such as pyruvate carboxylase, phospholipid metabolism-related protein and glyceraldehyde 3-phosphate dehydrogenase involved in gluconeogenesis, lipid metabolism and glycolysis, showed differential expression in mature appressoria. Furthermore, genes such as PTHll, beta subunit of G protein and SGTI involved in cell signalling, were expressed differentially in mature appressoria. Northern blot analysis was used to confirm the cDNA array results.     

Laparoscopic versus open distal pancreatectomy for benign or premalignant pancreatic neoplasms: a two-center comparative study

Objective: To compare the peri-operative outcomes for laparoscopic distal pancreatectomy (LDP) and open distal pancreatectomy (ODP) for benign or premalignant pancreatic neoplasms in two institutions. Methods: This prospective comparative study included 91 consecutive patients who underwent LDP (n=45) or ODP (n=46) from Jan. 2010 to Dec. 2012. Demographics, intra-operative characteristics, and post-operative outcomes were compared. Results: The median operating time in the LDP group was (158.7±38.3) min compared with (92.2±24.1) min in the ODP group (P<0.001). Patients had lower blood loss in LDP than in the ODP (122.6±61.1) ml vs. (203.1±84.8) ml, P<0.001). The rates of splenic conservation between the LDP and ODP groups were similar (53.3% vs. 47.8%, P=0.35). All spleen-preserving distal pancreatectomies were conducted with vessel preservation. LDP also demonstrated better post-operative outcomes. The time to oral intake and normal daily activities was faster in the LDP group than in the ODP group (1.6±0.5) d vs. (3.2±0.7) d, P<0.01; (1.8±0.4) d vs. (2.1±0.6) d, P=0.02, respectively), and the postoperative length of hospital stay in LDP was shorter than that in ODP (7.9±3.8) d vs. (11.9±5.8) d, P=0.006). No difference in tumor size (4.7±3.2) cm vs. (4.5±1.8) cm, P=0.77) or overall pancreatic fistula rate (15.6% vs. 19.6%, P=0.62) was found between the groups, while the overall post-operative complication rate was lower in the LDP group (26.7% vs. 47.8%, P=0.04). Conclusions: LDP is safe and effective for benign or premalignant pancreatic neoplasms, featuring lower blood loss and substantially faster recovery.