线性回归最小二乘估计的相合性的若干新结果

本文建立了当r∈[1，2)和r∈(2，∞)时，线性模型回归系数最小二乘估计βn为r-阶矩相合的一些充分条件，这些结果推广和改进了陈桂景的结果。     

关于回归参数估计方法的探究

线性模型广泛应用于工业、生产、经济、社会等领域,本文对模型中的参数作了最小二乘估计,讨论了最小二乘估计的优点和缺点。针对这种方法的不足,提出了对模型参数的线性约束估计,同时对其优点作了讨论。     

多输入线性定常奇异摄动系统极点配置的方法

本文将J.Kauteky等人于1985年提出的鲁棒性极点配置方法,推广到对(n+m)阶多输入线性定常奇异摄动系统用其降阶模型配置极点的问题,使实际的闭环系统的n个主导极与指定的n个主导极点最接近,而且实际的闭环系统与实际的开环系统的n个非主导极点最接近。     

创业活动与经济增长的动态关系——基于广西1990--2010年数据的实证检验

运用VAR模型对广西创业和经济增长的关系进行实证研究，结果表明：两者之间存在长期稳定的均衡关系；创业是经济增长的Granger原因，而经济增长却不是创业增长变化的Granger原因；从长期看，创业与经济增长之间有持续的双向促进效应，但创业对经济增长的促进效应大于经济增长对创业的促进效应．因此。在制定相关政策时，应采用长期政策而非短期政策，加大对创业的支持力度，制定相关优惠的税收和投资政策鼓励和激励更多人进行自主创业，并通过有效措施促进创业经济的发展．     

自适应设计广义线性回归多维拟似然估计的渐近正态性

文章研究了自适应设计广义线性回归的拟似然方程,在适当条件下,其解^βn具有渐近正态性质。     

Postmolt cuticle growth in a cockroach: in vitro deposition of multilamellate and circadian-like layered endocuticle

Summary Pieces of the hind legs of freshly moltedBlaberus craniifer adults were cultivated in vitro. The deposition of multilamellate and circadian-like layered endocuticle was observed. In multilamellate cuticle, the number of double lamellae was frequently much greater than the number of days in culture. In circadian-like layered cuticle, the number of double layers corresponded to the numbers of days in culture, or it was smaller.I am indebted to Mrs Hassenrück, for excellent assistance. — Supported by the Deutsche Forschungsgemeinschaft (We 389/12-2).     

正值函数乘积的极小和问题

研究下述非线性规划问题（ＮＬＰ）ｍｉｎΣｉ－１↑ｓ（Пｊ＝１↑ｋｆｉｊ（ｘ）＾１／ｋ，这里ｆｉｊ：Ｘ→Ｒ＾＋，其中Ｘ表示Ｒ＾ｎ中的非空紧致集，Ｒ＾＋表示正实数集，ｉ＝１，２，…，ｓ，ｊ＝１，２，…，ｋ。借助〔１〕的引理１，（ＮＬＰ）问题可简化为含ｓ×ｋ个参数的因子函数之和的最小化问题，证明最优参数只须取一些特定的值。特别，如果ｆｉｊ均为线性函数，Ｘ为凸多面体，则其最优解必定可以在Ｘ的顶点处实现。     

Linear Conjugate Boundary Value Problems

We discuss the linear conjugate boundary value problems on the unit circle and the real axis. We obtain some Fredholm integral equations. Using thess equations we discuss the solvable conditions on these problems and we also give a direct method for the extension problems on the real axis.     

一类线性不等式组的代数特征解法

按本文的方法，由ｎ×（ｎ＋１）阶欠线性方程组Ａ＾ＴＹ＝０的一个非零解，便能确定线性不等式组ＡＸ≤ｂ之解集合有哪些顶点和棱，以及这些顶点和棱是哪些ｎ×ｎ阶线性方程组的解，从而求得解集合。     

Functions of fatty acid binding proteins

Summary Cytosolic fatty acid binding proteins (FABP) belong to a gene family of which eight members have been conclusively identified. These 14–15 kDa proteins are abundantly expressed in a highly tissue-specific manner. Although the functions of the cytosolic FABP are not clearly established, they appear to enhance the transfer of long-chain fatty acids between artificial and native lipid membranes, and also to have a stimulatory effect on a number of enzymes of fatty acid metabolism in vitro. These findings, as well as the tissue expression, ligand binding properties, ontogeny and regulation of these proteins provide a considerable body of indirect evidence supporting a broad role for the FABP in the intracellular transport and metabolism of long-chain fatty acids. The available data also support the existence of structure- and tissue-specific specialization of function among different members of the FABP gene family. Moreover, FABP may also have a possible role in the modulation of cell growth and proliferation, possibly by virtue of their affinity for ligands such as prostaglandins, leukotrienes and fatty acids, which are known to influence cell growth activity. FABP structurally unrelated to the cytosolic gene family have also been identified in the plasma membranes of several tissues (FABP_pm). These proteins have not been fully characterized to date, but strong evidence suggests that they function in the transport of long-chain fatty acids across the plasma membrane.