电视知识分子对社会文化的积极影响

早在20世纪60年代,德国社会学家W·林格斯就说过,电视是震撼现代社会的三大力量之一。并将其与原子能和宇宙空间技术的发明并称为"人类历史上具有划时代意义的三件大事"。可见,电视深刻而广泛地影响着人们的生活。知识分子走进电视媒体,其深厚的学术背景、独树一帜的思想和创造能力提升了电视节目的文化品位和栏目质量,连同他们良好的人格和涵养,不断感染和熏陶着受众,促进了社会文化不断发展完善。

The research on the highly efficient calculation method of 3-D frequency-domain Green function

The traditional calculation method of frequency-domain Green function mainly utilizes series or asymptotic expansion to carry out numerical approximation, however, this method requires very careful zoning, thus the computing process is complex with many cycles, which has greatly affected the computing efficiency. To improve the computing efficiency, this paper introduces Gaussian integral to the numerical calculation of the frequency-domain Green function and its partial derivatives. It then compares the calculation result with that in existing references. The comparison results demonstrate that, on the basis of its sufficient accuracy, the method has greatly simplified the computing process, reduced the zoning and improved the computing efficiency.

动物也友善?

"人类有一套道德准则,"(美国)科罗拉多大学的动物行为专家马克·贝可夫说。"如果我不按某种方式办事,你就不会跟我玩了。有些动物也有同样的准则。"

THE BOUNDARY ELEMENT ANALYSIS PROGRAM FOR 3-D TRANSIENT DYNAMIC FIELD

The matrix expression for the 3 D transient dynamic boundary integral equation in Laplace transform space is obtained and the degenerative element method has been implemented to treat the kernel function over the singular element. In the computer program BEMTDY the Koizumi′s numerical inversion method is used and three examples of the 3 D vibrated foundation under harmonic forces and the influence with both adjacent foundations are studied.

Turkish Muslim Immigrants in Britain： Religious Life and Religious Organizations

Turkish Muslim immigrants in Britain consist of Turks, Kurds and Turkish Cypriots migrating for different reasons at different times for immigration and asylum. This migrant community has a non-homogeneous structure owing to differences in their life styles, experiences, ideas, feelings, hopes and expectations. Therefore, Turkish Muslim immigrants have been observed living for a long time in the different ethnic, ideological, cultural and religious communities. In this paper, these immigrants＇ religious life and religious organizations in Britain will be focused on. The methodology of this research is based on the field research that the author did from July 9, 2012 to September 9, 2012 in London. According to the investigations, there are mainly four different Turkish Islamic tendencies in Britain. Also, there are about 10 Turkish religious organizations and 27 places of worship belonging to these Islamic discourses in Britain.

色彩冲绳不一样的日本

冲绳是不一样的日本。冲绳有日本最烈的酒,"泡盛";有最艳的樱花,寒绯樱;冲绳还有全日本最热情洋溢的高尔夫球场,就连时光的流淌速率都是不同寻常的。

Two-Point Resistance of a Cobweb Network with a 2r Boundary

We consider the problem of the two-point resistance on an m ×n cobweb network with a 2r boundary, which has never been solved before. Up to now researchers just only solved the cases with free boundary or null resistor boundary. This paper gives the general formulae of the resistance between any two nodes in both tinite and infinite cases using a method of direct summation pioneered by Tan [Z. Z. Tan, et al., J. Phys. A 46 （2013） 195202], which is simpler and can be easier to use in practice. This method contrasts the Green＇s function technique and the Laplacian matrix approach, which is difllcult to apply to the geometry of a cobweb with a 2r boundary. We deduce several interesting results according to our genera/formula. In the end we compare and illuminate our formulae with two examples. Our analysis gives the result directly as a single summation, and the result is mainly composed of the characteristic roots.

Green＇s Relations on Semigroups of Transformations Preserving Two Equivalence Relations

Let Tx be the full transformation semigroup on a set X. For a non-trivial equivalence F on X, letTF（X） = {f ∈ Tx ： arbieary （x, y） ∈ F, （f（x）,f（y）） ∈ F}.Then TF（X） is a subsemigroup of Tx. Let E be another equivalence on X and TFE（X） = TF（X） ∩ TE（X）. In this paper, under the assumption that the two equivalences F and E are comparable and E lohtain in F, we describe the regular elements and characterize Green＇s relations for the semigroup TFE（X）.

Edge influence on herbaceous plant species,diversity and soil properties in sparse oak forest fragments in Iran

Forest edges have been well studied in temperate and tropical forests,but less so in open canopy forests.We investigated edge influence on plant species diversity and soil properties in sparse oak forest fragments.Data were collected along three transects from the edge to the interior of three small(under 10 ha)and three large(over 10 ha)oak forest fragments in Kermanshah Province,Iran.We measured herbaceous plants(<0.5 m in height)and soil attributes at 0(forest edge),25,50,100 and 150 m.We quantified species diversity using the Shannon index,used rarefaction to compare species richness between two different sizes of fragments and applied non-metric multidimensional scaling ordination to investigate the variation in species composition.We estimated the distance of edge influence using randomization tests.Generalized linear mixed models with post-hoc Tukey’s HSD tests were used to assess the effects of distance from edge and fragment size on diversity and soil properties.We found greater species richness,diversity and evenness at the edge of both small and large fragments and lower nitrogen and organic carbon at the edge compared to the interior of large fragments,with most changes within 50 m of the edge.Species composition,organic carbon and total nitrogen were significantly different between small and large fragments.Our findings of significant edge influence on herbaceous plants and soil properties in these sparse forests provide a significant contribution to the literature on edges,especially in relation to herbaceous plants.