12月份分科出院人数统计预测方法探讨

目的探讨12月份分科出院人数统计预测的方法。方法根据我院2002年至2004年出院人数指标,采用线性回归预测方法、平均值法和双11月法,预测了12月份各临床科室出院人数趋势值,依据预测的出院人数值与实际值的绝对离差进行分析研究。结果三种方法预测结果显示,双11月法预测的12月份分科出院人数离散程度最小,说明该方法预测的趋势值代表性最好。结论双11月法避开了春节、黄金周和假日的影响,社会环境和医院工作环境变化的影响也最小,是回避科室床位增减影响的最有效的方法之一。

Molecular Phylogeny of the Lardizabalaceae Based on TrnL-F Sequences and Combined Chloroplast Data

The molecular phylogeny of the Lardizabalaceae is reconstructed based on chloroplast trn L_F sequences alone and combined trn L_F and rbc L sequences. The phylogenetic topologies agree well with Qin's and Takhtajan's tribal classification in both analyses. Decaisneae and Sinofranchetieae are basal clades in the phylogenetic trees and external to all other taxa in the family. Lardizabaleae consisting of Boquila and Lardizabala are well supported in both trn L_F (100%) analysis and trn L_F and rbc L combined analysis (99%). Tribe Akebieae are strongly supported by a bootstrap value of 100% in both trn L_F analysis and trn L_F and rbc L combined analysis. However, the new genus Archakebia is nested within the genus Akebia in the trn L_F trees. In the combined trees, Archakebia is sister to Akebia with high bootstrap support. The inter_relationships among three closely related genera Parvatia , Holboellia and Stauntonia are still problematic. P. brunoniana ssp. elliptica is sister to H. latifolia in both analyses with low bootstrap support. H. parviflora is nested within the Stauntonia and sister to S. cavalerieana . Therefore, these three genera of tribe Akebieae may not be monophylytic and their generic boundary and delimitation need to be further studied, by exploring more molecular data, together with more morphological characters.

A new species in the genus Malcus Stål(Hemiptera:Heteroptera:Malcidae)from China based on morphological and molecular data

Morphological and molecular data confirm a new species in genus Malcus from Xizang,China.Malcus zhengi sp.nov.is described and illustrated.Photos and illustrations of the adult,critical morphological characteristics and pygophore are provided.

Research on the Model of Linear Data Fitting Method

By using the method of least square linear fitting to analyze data do not exist errors under certain conditions, in order to make the linear data fitting method that can more accurately solve the relationship expression between the volume and quantity in scientific experiments and engineering practice, this article analyzed data error by commonly linear data fitting method, and proposed improved process of the least distance squ^re method based on least squares method. Finally, the paper discussed the advantages and disadvantages through the example analysis of two kinds of linear data fitting method, and given reasonable control conditions for its application.

Literature and patent analysis of the cloning and identification of human functional genes in China

The Human Genome Project was launched at the end of the 1980s.Since then,the cloning and identification of functional genes has been a major focus of research across the world.In China too,the potentially profound impact of such studies on the life sciences and on human health was realized,and relevant studies were initiated in the 1990s.To advance China's involvement in the Human Genome Project,in the mid-1990s,Committee of Experts in Biology from National High Technology Research and Development Program of China(863 Program) proposed the "two 1%" goal.This goal envisaged China contributing 1% of the total sequencing work,and cloning and identifying 1% of the total human functional genes.Over the past 20 years,tremendous achievement has been accomplished by Chinese scientists.It is well known that scientists in China finished the 1% of sequencing work of the Human Genome Project,whereas,there is no comprehensive report about "whether China had finished cloning and identifying 1% of human functional genes".In the present study,the GenBank database at the National Center of Biotechnology Information,the PubMed search tool,and the patent database of the State Intellectual Property Office,China,were used to retrieve entries based on two screening standards:(i) Were the newly cloned and identified genes first reported by Chinese scientists?(ii) Were the Chinese scientists awarded the gene sequence patent? Entries were retrieved from the databases up to the cut-off date of 30 June 2011 and the obtained data were analyzed further.The results showed that 589 new human functional genes were first reported by Chinese scientists and 159 gene sequences were patented(http:gene.fudan.sh.cn/introduction/database/chinagene/chinagene.html).This study systematically summarizes China's contributions to human functional genomics research and answers the question "has China finished cloning and identifying 1% of human functional genes?" in the affirmative.