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Psychology Research 2016年第6期6卷 327-344页

作者： Mahmood Khalil Lina Boulos Yaser Awad The college of sakhnin--academic college for teacher education Sakhnin Israel

THE SCHUR CONVEXITY OF GINI MEAN VALUES IN THE SENSE OF HARMONIC MEAN

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Acta Mathematica Scientia 2011年第3期31卷 1103-1112页

作者：夏卫锋褚玉明 School of teacher education Huzhou teachers college Department of Mathematics Huzhou teachers college

We prove that the Gini mean values S（a,b; x,y） are Schur harmonic convex with respect to （x,y）∈（0,∞）×（0,∞） if and only if （a, b） ∈{（a, b）：a≥0,a ≥ b,a＋b＋1≥0}∪{（a,b）：b≥0,b≥a,a＋b＋1≥0} and Schur harmonic concave with respect to （x,y） ∈ （0,∞）×（0,∞） if and only if （a,b）∈{（a,b）：a≤0,b≤0,a｜b｜1≤0}.

关键词： Gini mean values Schur convex Schur harmonic convex

On Word Equations Originated from Discrete Dynamical Systems Related to Antisymmetric Cubic Maps with Some Applications

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Acta Mathematica Sinica,English Series 2018年第11期34卷 1663-1676页

作者： Elias ABBOUD The academic Arab Institute Faculty of EducationBeit Berl College

In this article, we solve some word equations originated from discrete dynamical systems related to antisymmetric cubic map. These equations emerge when we work with primitive and greatest words. In particular, we characterize all the cases for which （β1β1） = （β2β） where β1 and β2 are the greatest words in 〈〈β31〉〉 and 〈〈β32〉〉 of M（n）.

关键词： Word equation broken alternating word primitive word greatest word parity-lexicographic order

Shu-szi Sin: A Chinese pioneer biologist, ancient agronomist, and educator

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Protein & Cell 2021年第7期12卷 515-517页

作者： Qun Xie Yan-ping Cheng Lei Fu teacher education college Zhejiang Normal UniversityJinhua 321000China

Shu-szi Sin(辛树枳,1894-1977)(Fig.1),a Chinese pioneer biologist and ancient agronomist,initiated the earliest scientific biological investigation of the Dayao mountain in both Guangxi and Guangdong provinces,discovering more than 20 new species that have been acknowledged *** was one of the founders and initiators of the China Botanical Society and the China Zoological *** was also a great educator Among one of those who first introduced the scientific method into agricultural history research,*** helped to set up the National Northwest Agriculture and Forestry college(now Northwest A&F University)and the Lanzhou *** devoted himself to the development of higher education in Northwest China.

关键词： China. Northwest devoted

Comparison of three types of warm-up upon sprint ability in experienced soccer players

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Journal of Sport and Health Science 2019年第6期8卷 574-578页

作者： Roland van den Tillaar Eirik Lerberg Erna von Heimburg Department of teacher education Nord Tr?ndelag University College

Purpose:The study aimed to compare the effects of a long general warm-up,a long specific warm-up,and a short specific warm-up upon sprint ability in soccer ***:Twelve male soccer players(age:18.3±0.8 years,mean±SD;body mass:76.4±7.2 kg;body height:1.79±0.05 m) conducted 3 types of warm-ups with 1 week in between:a long general warm-up,a long specific warm-up,and a short specific warm-up followed by 3 sprints of 40 m *** best,average,and total sprinting times together with heart rate and ratings of perceived exertion were ***:The sprint times(best,average,and total time) were significantly better when performing a long specific or short specific warm-up compared with the long general warm-up(all p <0.05).The received perception exertion was significantly lower during the specific short warm-up(4.92 ± 0.90) compared with the longer ones(6.00 ± 0.74 and 6.25 ± 0.87,respectively).Conclusion:Specificity is more important in a warm-up routine before sprint performance than the duration of the warm-up.

关键词： Duration Performance Received perception exertion Running Specificity Total sprinting times

Zhu Xi:a pioneer of experimental biology

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Protein & Cell 2023年第9期14卷 629-631页

作者： Yujing Qian Xiazhao Yu Yangqing Sun Qun Xie Ge Liang Gaiping Bai teacher education college Zhejiang Normal UniversityJinhua 321000China

Zhu Xi(朱洗,1900-1962)(Fig.1),one of the founders of cell biology and experimental biology in China,was bom in Linhai,Zhejiang Province in *** 1931,he obtained his doctorate in *** returning China,he devoted himself to toad reproduction *** the spirit of innovation and dedication to research,he had made marvelous contributions to China,especially in *** the same time,he put his patriotism into action,promoting the vigorous development of agriculture and other industries.

关键词： devoted pioneer himself

A review of ethnobotanical studies reveals over 500 medicinal plants in Mindanao,Philippines

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Plant Diversity 2024年第5期46卷 551-564页

作者： Joeime F.Meñiza Monica M.Pasco Jemer A.Alimbon Department of teacher education UM Tagum CollegeTagum City8100Davao del Norte Philippines

Medicinal plants have long been used to treat various diseases in both indigenous and non-indigenous populations of Mindanao,***,we extracted data from ethnobotanical studies to compile a comprehensive list of these medicinal plants and identify how and for what purpose they are most commonly *** identified 530 verified medicinal plant species across 372 genera in 118 *** two most frequently cited species were Euphorbia hirta and Psidium *** most represented family was Fabaceae and the most represented genus was Ficus.A total of 28 medicinal plant species are designated as threatened at the national or global level;of these,11 are endemic to the *** plant preparations most commonly use leaves for oral administration to treat various diseases such as digestive issues,including *** study underscores the need for further ethnobotanical investigations,particularly in areas lacking *** also emphasizes the need for conservation of threatened and endemic medicinal plants to ensure sustainable utilization of this valuable resource.

关键词： Ethnobotany Medicinal plants Mindanao Philippines

An Influence Maximization Algorithm Based on Improved K-Shell in Temporal Social Networks

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Computers, Materials & Continua 2023年第5期75卷 3111-3131页

作者： Wenlong Zhu Yu Miao Shuangshuang Yang Zuozheng Lian Lianhe Cui college of Computer and Control Engineering of Qiqihar University Qiqihar161006China college of teacher education of Qiqihar University Qiqihar161006China

Influence maximization of temporal social networks(IMT)is a problem that aims to find the most influential set of nodes in the temporal network so that their information can be the most widely *** solve the IMT problem,we propose an influence maximization algorithm based on an improved K-shell method,namely improved K-shell in temporal social networks(KT).The algorithm takes into account the global and local structures of temporal social ***,to obtain the kernel value Ks of each node,in the global scope,it layers the network according to the temporal characteristic of nodes by improving the K-shell ***,in the local scope,the calculation method of comprehensive degree is proposed to weigh the influence of ***,the node with the highest comprehensive degree in each core layer is selected as the ***,the seed selection strategy of KT can easily lose some influential ***,by optimizing the seed selection strategy,this paper proposes an efficient heuristic algorithm called improved K-shell in temporal social networks for influence maximization(KTIM).According to the hierarchical distribution of cores,the algorithm adds nodes near the central core to the candidate seed *** then searches for seeds in the candidate seed set according to the comprehensive *** showthatKTIMis close to the best performing improved method for influence maximization of temporal graph(IMIT)algorithm in terms of effectiveness,but runs at least an order of magnitude faster than ***,considering the effectiveness and efficiency simultaneously in temporal social networks,the KTIM algorithm works better than other baseline algorithms.

关键词： Temporal social network influence maximization improved K-shell comprehensive degree

A Criterion for Subnormality of Subgroups in Finite Groups

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Acta Mathematica Sinica,English Series 2012年第8期28卷 1575-1580页

作者： Hua Quan WEI Hong Fei PAN Shu Qin DONG Xu SUN college of Mathematics and Information Sciences Guangxi University School of Mathematics Science Guangxi Teacher's Education University

Based on Wielandt＇s criterion for subnormality of subgroups in finite groups, we study 2-maximal subgroups of finite groups and present another subnormality criterion in finite solvable groups.

关键词： Finite group solvable group maximal subgroup subnormal subgroup semidirect

Synthesis and Supramolecular Structure of Chloro(1,10-phenanthroline)copper(I) Hexahydrate

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Chinese Journal of Structural Chemistry 2006年第1期25卷 41-44页

作者：胡自强来国桥蒋剑雄马福民李英芝 Key Laboratory of Organosilicon Chemistry and Material Technology of education Ministry Hangzhou Teacher’s College Hangzhou 310036 China

The title compound, C24H28ClCuN4O6 （Mr = 567.49）, has been prepared and its crystal structure has been determined by X-ray diffraction method. The crystal belongs to monoclinic, space group C2/c with a = 23.1905（14）, b = 30.1877（12）, c = 7.4881 （3） A, β = 97.631 （2）°, V = 5195.8（4） A^3, Z = 8, Dc = 1.451 g/cm^3,μ = 0.989 mm^-1, F（000） = 2352, S = 1.030, R = 0.0694, wR = 0.2120 （I 〉 2σ（I））, R = 0.0950 and wR = 0.2322 （all data）. The crystal consists of the Cu（Ⅰ） complex and lattice water molecules. The Cu（Ⅰ） atom is coordinated by two phenanthroline （phen） molecules and one chlorine anion with a distortetl trigonal dipyramidal coordination geometry. By the aid of aromatic π-π stacking, the Cu（Ⅰ） complex molecules form two-dimensional supramolecular layers. Lattice water molecules locate between the adjacent layers to form a three-dimensional sandwich-like supramolecular structure.

关键词： copper(Ⅰ) complex supramolecular crystal structure