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Slow-growth high-mortality: A meta-analysis for insects

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Bifurcation Analysis for a Free Boundary Problem Modeling Growth of Solid Tumor with Inhibitors

【摘要】<p>This paper is concerned with the bifurcation analysis for a free boundary</p><p>problem modeling the growth of solid tumor with inhibitors. In this problem, surface</p><p>tension coefficient plays the role of bifurcation parameter, it is proved that there</p><p>exists a sequence of the nonradially stationary solutions bifurcate from the radially</p><p>symmetric stationary solutions. Our results indicate that the tumor grown in vivo</p><p>may have various shapes. In particular, a tumor with an inhibitor is associated with</p><p>the growth of protrusions.</p><p><br/></p>

《数学研究通讯》 | 2017年1期 | Wang Ze-jia

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A Brief Analysis of Motivation for English Beginners

【摘要】<p>Four desires or needs of human organisms are commonly</p><p>identified</p><p>(Ausubel 1968:364-367),which constitute the concept of</p><p>motivation:</p><p>1.The need for exploration,for seeing “the other side of the</p><p>mountain”,for probing the unknown.</p><p>2.The need for manipulation,for operating on the environment</p><p>and causing change.</p><p>3.The need for activity,for movement and exercise,both</p><p>physical and mental.</p><p>4.The need for stimulation,the need to be stimulated by the</p><p>environment,by other people,or by ideas,thoughts and feeling.</p><p>Then,what is motivation? As Penny Ur(1996:274)says “the</p><p>abstract term ‘motivation’ on its own is rather difficult to define.”</p><p>different researchers have different opinions.According to Gardner</p><p>(1985;10),“motivation is the combination of effort plus desire to</p><p>achieve the goal of learning plus favorable attitudes towards learning</p><p>the language.” The motivation of language learning is one of</p><p>human’s behavioral motivations.It is the psychological state of</p><p>sensibility and initiative of learners in the activity of language</p><p>learn.Motivation of language learning can be classified from different</p><p>points of view.</p><p><br/></p>

《东方教育》 | 2015年21期 | 张 戎

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Lenzing expands offering for nonwovens in a high-tech application facility

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《中国纺织(英文版)》 | 2019年2期 | 本刊编辑部

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Explicit Multi-symplectic Method for a High Order Wave Equation of KdV Type

【摘要】<p>Abstract: In this paper, we consider multi-symplectic Fourier pseudospectral methodfor a high order integrable equation of KdV type, which describes many importantphysical phenomena. The multi-symplectic structure are constructed for the equation,and the conservation laws of the continuous equation are presented. The multisymplecticdiscretization of each formulation is exemplified by the multi-symplecticFourier pseudospectral scheme. The numerical experiments are given, and the resultsverify the efficiency of the Fourier pseudospectral method.</p>

《数学研究通讯》 | 2018年3期 | Wang Jun-jie

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A road for a promising future for China’s primates: Thepotential for restoration

【摘要】China is one of the most dynamic countries ofthe world and it shelters some amazing levels ofbiodiversity, including some very special primatespecies. However, primarily as a result of forestloss, most of which occurred in historical times,approximately 70% of China’s primate species haveless than 3 000 individuals. Here I evaluate oneroad for future conservation/development that couldproduce very positive gains for China’s primates;namely forest restoration. I argue that for a large scalerestoration project to be possible two conditions mustbe met; the right societal conditions must exist andthe right knowledge must be in hand. This evaluationsuggests that the restoration of native forest to supportmany of China’s primates holds great potential toadvance conservation goals and to promote primatepopulation recovery.

《动物学研究》 | 2018年4期 | Colin A. Chapman

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A RIVER FOR ALL

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《中国东盟报道》 | 2019年8期 | YuanYanan

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Lexical Analysis of English for Tour Guides

【摘要】<p>With the rapid development of Chinese tourism industry, more and more foreign tourists come to China for a visit.Although not all foreign tourists are from English-speaking countries, English, as a common language in today&#39;s world, has become themost important medium of communication when international tourist activities are involved in. As a result, English for Tour Guides—the language used in receiving and guiding tourists appears as a special variety of English, becomes popular in Chinese tourism. Thepaper will analyze the stylistic features of English for Tour Guides in its lexis, syntax and rhetorical devices, in order to help them tocomplete their jobs and achieve desired effect.</p>

《大陆桥视野》 | 2015年24期 | 张明丽

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Wool textile: Accelerating transformation, and maintaining a green and sound growth momentum

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《中国纺织(英文版)》 | 2019年2期 | 本刊编辑部

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