包含度族的一些性质

本文研究半序集（Ｌ，≤）中的包含度族的凸性，不交性及格。

等度区间族覆盖数轴的作用

利用等度区间族覆盖数轴的简单知识,给出了有理数对实数逼近的表示方式及其应用;对带余除法公式给出了直观的证明和应用,对分析中的一些结果给出了统一的处理方法.

随机半范模上等度连续的典则模同态族的特征

给出了随机半范模上等度连续的典则模同态族的一个特征———随机半范模上强凸的等度连续的典则模同态族可以被一个性质较好的连续随机半范数所控制

一些二进制数列的族复杂度和互相关测度

利用Legendre符号构造的二进制数列具有很强的伪随机性.基于Legendre符号,依据多项式特征和的估计、指数和的估计,构造了两类伪随机性好的二进制数列族,它们均具有较大的族复杂度和较小的互相关测度.

公共不动点集的通有稳定性

本文研究了Hausdorff拓扑向量空间紧凸集上的集值映射族公共不动点集的通有稳定性,利用Fort定理,得到了在Baire分类意义下,存在一个稠密剩余子集使得公共不动点问题是本质的,从而是稳定的.

The variation of skinfold thickness of Mulam adults in China

The skinfold thickness of six items （facial skinfold, subscapular skinfold, suprailiac skinfold, biceps skinfold, triceps skinfold and calf skinfold） were measured in 465 Mulam adults （232 male and 233 female）. The results were as follows： （1） The average skinfold thickness are higher in female at every age group. （2） As a whole, the skinfold thickness in the body of trunk is bigger than that in the limbs in both male and female. The curves of biceps skinfold thickness and calf skinfold thickness of male doesn＇t fluctuate with age. Body fat percentage of male was the lowest in the 30s group. In female, the skinfold thickness of trunk and triceps increase with age while calf skinfold decreases. Body fat percentage of female increases with age but then decreases after 50 years old. （3） The mean vales of Mulam skinfold thickness are relatively low compared with Daur, Uzbek and Han nationality.

再生散度分布族下联合方位与散度混合专家回归模型的参数估计

再生散度分布族是一种比指数族分布更加广泛的分布,其适用性更强,为了了解散度的来源,基于一般的方位模型,提岀了联合方位与散度模型,即再生散度分布族下联合方位与散度模型,而混合专家回归模型在统计机器学习方面被广泛的研究,并用于解决异质总体的分类问题.本文研究了再生散度分布族下的混合专家回归模型,并利用MM及EM算法对参数进行极大似然估计.最后,通过随机模拟和实例研究说明该模型和方法是有效和有用的.

Determination and Correlation for Solubility of Aromatic Acids in Solvents

Solubility of benzoic acid, terephthalic acid and 2,6-naphthalene dicarboxylic acid in water, acetic acid, N.N-dimethylformamide, N.N-dimethylacetamide, dimethyl sulphoxide and Ar-methyl-2-ketopyrrolidine were measured by dynamic method. The solubilities were calculated by UNIFAC group contribution method, in which new groups, BCCOOH and NCCOOH, were introduced to express the activity coefficients of aromatic acids and new interaction parameters of the new groups were expressed as the function of temperature, which were determined from the experimental data. The new interaction parameters provided good calculated result. The experimental data were also correlated with Wilson and y-h models, and results were compared with present UNIFAC model.

MODIFIED CLASSIC RISK FACTORS FOR CORONARY ARTERY DISEASE IN CHINESE HAN POPULATION

Objective To investigate the levels of cardiovascular disease risk factors and their relations to clinical phenotype associated with coronary artery disease(CAD).Methods The subjects were recruited from five independent cardiovascular centers.Coronary angiography was employed to define the CAD with stenosis in each major vessel ≥70% and control with stenosis <10% in every lesion.The classic risk factors including family history,body mass index,smoking habits,hypertension,diabetes mellitus,and serum lipid levels were surveyed according to established criteria.Associations between risk levels and clinical phenotypes were assessed by case control and correlation analysis.Results A total of 762 individuals were collected,including 481 men and 281 women,aged from 17 to 81(mean 60±10) years.The patients with CAD accounted for 55.5% of all participants,and controls 44.5%,respectively.Compared with the pattern in published data,our study showed that mean serum high density lipoprotein cholesterol(HDL-C) level was significantly lower(P<0.001) and triglycerides was significantly higher(P<0.001),while total cholesterol(TC) and low density lipoprotein cholesterol levels were comparative(both P>0.05).The prevalence of low HDL-C(<40 g/L) and hypertriglyceridemia(>150 g/L) were 27.2% and 41.4%,respectively.Mean serum levels of HDL-C and apolipoprotein A1 were significantly higher in female subjects than in male(P<0.001).Lower HDL-C functioned as an independent risk factor for CAD only in men(RR=2.8,95%CI:1.5-4.2,P<0.001),yet increased non-HDL cholesterol combined with diabetes mellitus and obesity seemed to play a key role in the development ofCAD in women.Similarity in risk association with CAD was found for hypertension and TC/HDL ratio in male and female subjects,while family history had no relationship with the presence of CAD.Conclusion It is remarkable that emphasis of intervention in future should be given on the prevalent low serum HDL-C and its strong risk correlation with the presence of CAD in male subjects of Chinese Han population.

Current Situation of University Poor Student

Education is rejuvenating the country, education is the talent in the country and rejuvenating the beginning. Popularization of higher education is thc ultimate goal in the development of the national education levcl, to enhance the knowledge of the entire Chinese nation, the quality level is important. In recent years, the university has gone through college enrollment, fee system reform policy changes, the gross enrollment rate is 40% in 2015, exceeding the average level of middle income countries, is a big step forward on education in China. Along with the change in universities, the proportion of poor students has been expanded, and therefore the state has increased concern about the poor students in colleges and univcrsities. To prevent students drop out of school because of family difficulties, the use of government scholarships, grants in thc form of direct or indirect funding for poor students in colleges and universities. However, many problems still arise in College student poverty measures to implement the process, such as a lack of material poverty Branch precision, ＂the material poverty, spiritual poverty of light＂, the students lack credibility, etc. These problems lead to the expected results of poverty alleviation has not really achieved. This article will be poor college students, the poor student＇s current development summarized and analyzed from multiple levels of student poverty problems generated in the process.

Lattice Mismatch Induced Tunable Dimensionality of Transition Metal Dichalcogenides

Low-dimensional materials have excellent properties which are closely related to their dimensionality.However,the growth mechanism underlying tunable dimensionality from 2D triangles to 1D ribbons of such materials is still unrevealed.Here,we establish a general kinetic Monte Carlo model for transition metal dichalcogenides(TMDs) growth to address such an issue.Our model is able to reproduce several key findings in experiments,and reveals that the dimensionality is determined by the lattice mismatch and the interaction strength between TMDs and the substrate.We predict that the dimensionality can be well tuned by the interaction strength and the geometry of the substrate.Our work deepens the understanding of tunable dimensionality of low-dimensional materials and may inspire new concepts for the design of such materials with expected dimensionality.

Research on the Students’Attitudes Towards Multilingualism:Li Minority Students in Hainan

Recent research has emphasized that attitude is key to language learners’learning outcomes.More specifically,language learners’feelings about languages and language learning may affect their study behavior and willingness to engage with a second or foreign language.Few studies on language attitudes have been conducted with ethnic minority groups in China.As such,influencing factors(e.g.,gender,language proficiency)have not gained sufficient attention.The present study aims to explore language attitudes,especially towards multilingualism,among members of the Li minority group in Hainan,China.First,we conceptualized and validated a questionnaire on attitudes towards multilingualism.Exploratory factor analysis and confirmatory factor analysis verified the survey’s validity.Then,we examined how selected sociodemographic variables(e.g.,gender and language proficiency)influenced students’attitudes towards multilingualism.Hierarchical regression was performed to ascertain the contribution of each predictor variable to learners’attitudes towards multilingualism.Results revealed no significant relationship between gender and language attitudes but found a significant impact of students’language proficiency level on their attitudes towards multilingualism.Implications for minority students’multilingual learning were discussed based on the findings.

The Latvian Road to the Euro

The article presents the situation in Latvia ahead of the country＇s adoption of the euro by offering an analysis of the extent to which the country is prepared for the move and of general economic difficulties as well as indicating possible threats to its future development. The article talks about difficulties caused by the great unemployment connected with the specific economy of the country, political problems of the post-socialistic multinational country and steps done towards the fulfilling of all the convergence criteria. Its aim is to present the moments around the change of the currency which is done by the material＇s analysis because there are not enough statistical data for the mathematical analysis. It can be concluded that the adoption of the euro will probably be beneficial in the long run for Latvia＇s economy. The conclusions may be done by comparison with the situation of Estonia and its foreign trade with Poland which is shown in the article because there are a lot of similarities between the two Baltic countries.

Extremist Politics as an Instrument of Ethnic Assertions among the Bodos of Northeast India

Ethnic assertions worldwide have assumed different forms ranging from moderate methods of articulation of autonomy to extremist means of violent struggle. Resort to extremism by some sections of an ethnic group usually triggers inter-ethnic conflicts with other groups on the one hand and leads to confrontation with the state on the other. This paper seeks to examine the dynamics of this phenomenon in the context of Bodos, the largest plains tribe of Assam, a State of Northeast India. The paper enquires as to whether extremist politics has met the Bodo aspirations for self-determination or has intensified the conflicts and contradictions within the Bodo society with ramifications for other ethnic groups inhabiting the Bodo-dominated areas. It is also necessary to explore the responses of the Union and State governments to Bodo extremist politics for an understanding of the conflict management process.

Growth of Scotch Pine （Pinus sylvestris L.） Plantation in Northern Mongolia

The growth of Scotch pine in Northem Mongolian plantations was studied to determine variation in heights, diameters at breast height （DBH）, and main and annual volume increment of stem volumes in relation to plantation age. The study was conducted in the Tujyin Nars region, where six plantations ranging from 9 to 25 years old were selected for the assessment. Results indicate that the growth of Scotch pine on the plantations did not vary by site, and that more intensive annual increment in height was observed on Scotch pine plantations between the ages of 8 to 15 years. The amount of annual height increment and radial growth improves regularly up to 9 to 11 years of age and then the intensity of annual increment declines due to competition for light and nutrients. Additionally, there was a reduction in the number of trees per ha. Results suggest that it is necessary to implement forestry thinning which aimed at improving growth of Scotch pine on the plantations because intensity of annual increment in height and diameter reduces regularly due to restriction of growing condition.

Screening of Commercial Herbicides for Controlling Algae Growth in Aquarium

This study was conducted to screen the commercial herbicides for algae control in the aquarium. Three herbicides of ametryn, atrazine and metribuzine were tested at concentrations ranging from 0.625 to 10.00 ppm. It is found that ametryn was the most effective herbicide that inhibited algal growth. Ametryn concentration that caused 50% inhibition on algae growth after exposure for 21 days was 0.335 ppm. Survival rate of oruamental fish, Harlequin rasbora （Trigonostigma heteromorpha） and growth rate of aquatic plant （Elodea canadensis） exposed to 10 ppm ametryn were compared with those exposed to algaecide. The result showed that there was no significant difference in survival rate of Harlequin rasbora when exposed to ametryn, algaecide and dechlorinized tap water （control）. However, growth rate of E. canadensis was lower after exposure of ametryn compared to those exposed to algaecide and tap water. These results suggest that ametryn has potential to be used as an algal inhibitor in aquarium.

A Generalized Correlation for Characterization of Lubricating Base-oils from Their Viscosities

Lubricating mineral base oils are normally extracted from lube-oil cuts with furfural solvent.Aromatic content in the raffinate phase from extraction process is an essential parameter that affects the quality of the lubricating base-oils.For determination of aromatic content by the usual ASTM D3238 method,density,refractive index and molecular weight of the raffinate are required.In this work,a new generalized correlation is developed for de-termination the aromatic content by using only the measured viscosity of lubricating oil.With a mole fraction of aromatic compounds,the kinematic viscosity may be obtained at any temperature between 60-100°C along with their molecular weight and refractive index.

Convergence Rate of Empirical Bayes Test for the Parameter of the Truncated-type Distribution Families

In this paper, we construct the empirical B ay es test (EBT) for the parameter of the truncated-type distribution families. It is found that the proposed test is asymptotically optimal. The convergence rate of the EBT is given.

The Wisdom of the Many and Fichte＇s ＂We＂

In order to consider the Wisdom of the Many, one has to reconsider Aristotle＇s statement about the source of a nation-state concerning political ＂gregarism＂--how it is called today, and why this belongs to the essentials of political constitution. Beforehand, this concept should not provide an instance of theoretical indulgence for emotional concepts or alike. Then, this statement will have to be confronted with the core argument of the Wisdom of the Many, together with the interpretation of Waldron. It will be interpreted as the counterpart of gregarism： When several people find together a solution, which eventually overrules that of the （few） expert（s）, they rely upon a common focus or an instance of polar consciousness. This includes the final question if the shared consciousness-or the polarity condition-is not able to also dominate and manifest within a group of experts, of those sufficiently erudite. As a token of possible evidence, the answer is given with Fichte, his lecture of the Science of Knowledge of 1804 by reason of the succinct reliance upon the plural ＂We.＂

Research on the correlation between regional economic growth and culture industry of our nation

For a nation, culture is not only the promotion and enhancement to the national spirit and the realm of life, but also an essential content and indispensable support force to achieve economic development, it is the important cause and prominent of the overall strength and the main carrier and specific embodiment of a nation＇s ＂soft power＂, besides, it also represents the degree of civilization, level of development and height of this nation. Culture and cultural industry endow with the modern culture with new meaning, it requires that at the time we achieve the prosperity and development of culture, we must actively explore and operate a scientific mechanism which is most able to release the energy of the culture and play cultural efficiency, and then develop the industrial pathway of the cultural. Cultural industry is a little different from the general industry. This causes the special natm-e of the cultural industry which is different from other industries. Different water and soil raised different people, inheriting national culture and developing cultural industry can be described as the unity of the three ones.