在木星卫星上制造生命(英文)

Brad Dalton is the first to admit his theory is far-fetched: that bacteria could account for odd light emissions, as well as the reddish hue, of Jupiter's ocean-bearing moon, Europa. But that doesn't mean it's not possible, says the Ames Research Center planetary geologist, who used data collected from the Galileo spacecraft to develop his controversial proposal. Dalton, who is preparing to present his findings at the Houston-based Lunar and Planetary Institute's conference in March, is quick to point out that he is not claiming to have found evidence of life.     

A Comparison between American Individualism and Chinese Collectivism-From the View of Cherishing Life in War

There is a large discrepancy in the value concept of life.We know that the ways of cherishing life are different in war to the soldiers from different cultures.We may perceive that people’s concept has been much influenced by the different cultural background and social environment.And similar cultural background and social environment may make people’s value trend introject.     

The Significance of Western Marxist Critique of Political Economics

China has entered the era of surplus economy when it is possible for Chinese people to satisfy their material needs. However, since the supply of cultural product is far below the level of its de mand, the people are still in a deficit state in spiritual life. The deficiency in spiritual life is quite dif ferent from that in material life, in the sense that it cannot be overcome by the development of culture industry. The way of satisfying a cultural need is wholly different from that of a material need, thus the substitute of the former with the latter necessarily leads to the alienation of needs. Only when we substitute “preference economics” with “necessary economics” is it possible for us to see the potential ity of transformation from the “bourgeois society” to the “human society”, revealed by Marxian cri tique of political economics, and to set the base for the theoretical innovation of the transformation era. Western Marxist Critique of Political Economics has provided us with a rewarding reference.     

The Pictorial Power of Language in e.e.Cummings’Poetry

e.e. Cummings’Poetry’s theme is the cycle of life, and"black against white"could be indicating life death versus life. It shows that even though a leaf falling may be an indication of death, falling of leaves is an integral part of the whole life cycle of the tree. !blac may seem like a simple mess of words, but in reality is much more complex than that.     

Wang Han Continues Study while Recovering from Illness

Faced with the rumor that he has contracted hepatitis(感染肝炎),Wang Han(汪涵) corrects the statement by saying that there is only something wrong with his liver.But the doctor warns that it would develop into cirrhosis(肝硬化) without good care.So,nowadays,Mr.Wang is living a regular life,with enough time for rest.He gets up early and goes to bed early.Besides,he receives three injections and takes 30 pills every week to maintain a balance in the essential elements within his body.He has lost weight by about 12 jin and this situation will probably continue,he says.Due to the side effects(副作用) of medicine,he may also lose his hair.But he is not worried about that at all,thinking that he should present(呈现) his true self before the public without being afraid of damaging his image.     

Reflection Of Sex Stereoty

1. Social stereotype and sex stereotypeIt is commonly found that people can draw con-clusions about other people’s character and abilitiessimply on the basis of how that person speaks, regard-less of the content of what they say. Sociologists andsocial psychologists apply the notion of “prototype”to gap the bridge between social categories such as “middle class”or “female”to value judgments like “friendly”, “reliable”, or “intelligent”. A prototype isa concept which is typically a…     

The Little Girl''''s Question

A little girl goes to a wedding for the first time.She says to her mother in a low voice, "Mom.why is the bride dressed in white?" "Because white is the color of happiness, and today is the happiest day of her life," mother answered.     

Role of deubiquitinating enzymes in DNA double-strand break repair

DNA is the hereditary material in humans and almost all other organisms. It is essential for maintaining accurate transmission of genetic information. In the life cycle, DNA replication, cell division, or genome damage, including that caused by endogenous and exogenous agents, may cause DNA aberrations. Of all forms of DNA damage, DNA double-strand breaks(DSBs) are the most serious. If the repair function is defective, DNA damage may cause gene mutation, genome instability, and cell chromosome loss, which in turn can even lead to tumorigenesis. DNA damage can be repaired through multiple mechanisms. Homologous recombination(HR) and non-homologous end joining(NHEJ) are the two main repair mechanisms for DNA DSBs. Increasing amounts of evidence reveal that protein modifications play an essential role in DNA damage repair.Protein deubiquitination is a vital post-translational modification which removes ubiquitin molecules or polyubiquitinated chains from substrates in order to reverse the ubiquitination reaction. This review discusses the role of deubiquitinating enzymes(DUBs) in repairing DNA DSBs. Exploring the molecular mechanisms of DUB regulation in DSB repair will provide new insights to combat human diseases and develop novel therapeutic approaches.     

心路历程——宇宙(英文)

Dr.Robert S.Herman(美)Dear Friends:This column be-gins with abig question:Howwould you redesignThe Universe? We are constantly reminded that “life is what you makeit.”This may or may not be true.To a large extent onr livesare conditioned by the nature of the Universe we live in.Wemust adapt to its limitations.     

Comments on R·Frost’s After Apple-Picking

Robert Frost once said that a poet“speaks in parables and in hints and inindirections,”for“poetry provides the one permissible way of saying one thingand meaning another.”In After Apple-Picking,one of his best-known poems,Frost again speaks indirectly,in parrables and hints;he is not just talkingabout apple-picking when he says“But I am done with apple-picking now.”What he actually hints is that the“I”(herein indicates the farmer)has justbeen through with his struggle against nature and life.     

Pattern formation in mutation of “Game of Life”

This paper presents pattern formation in generalized cellular automata （GCA） by varying parameters of classic “game of life”. Different dynamic behaviors are classified. The influence of remembrance of dynamic behavior of GCA is also studied. Experiments show the emergence of the self-organizing patterns that is analogous with life forms at the edge of chaos, which consist of certain nontrivial structure and go through periods of growth, maturity and death. We describe these experiments and discuss their potential as alternative way for creating artificial life and generative art, and as a new method for pattern genesis.     

Application of Hilbert-Huang signal processing to ultrasonic non-destructive testing of oil pipelines

INTRODUCTION Ensuring the integrity and safe operation of oil pipelines network is critical for ensuring the trans- portation of one of the most important forms of en- ergy. An inspection vehicle, called intelligent pig, which employs ultrasonic non-destructive testing technique is often used to inspect oil transmission pipelines (Okamoto et al., 1999; Reher et al., 2002). The ultrasonic detection principle involves the fun- damental concept that a propagating wave will be reflected and/o…     

衣橱里的骷髅

Lucky is the man who has no "skeleton in his closet. " When a man has done something in his life that he is not proud of, that he wants to hide, he is said to have a "skeleton in his closet. " Some people may have morethan one skeleton. And in some closets, the skeleton rattles its bare bones loudly.     

A Brief Analysis of African American Vernacular English(AAVE)—A Case Study of an AAVE Hip-Pop Son“gLive Your Life”

This paper tries to analyse the linguistic feafures of AAVE with a case study of a typical and popular AAVE hip-pop"Live your life"song sang by T.I.and Rihanna.And it also briefly analyses the potential social reasons that may contribute to the particular linguistic features of AAVE which is different from those of Standard American English.     

Proverbs in a Function and Purpose Perspective

In Otto Jespersen‘s book the Philosophy of Grammar( 1951 ),the definition of formulas is mentioned: “a formula may be a whole sentence or a group of words, or it may be one word, or it may be only part of a word, that is not improtant,but it must always be something which to the actual speech- instinct is a unit which cannot be further analyzed or decomposed in the way a free combination can”(1951:24) .Thus proverbs belong to formulas, as the example “Handsome is that handsome does” given by Jespersen.     

Application of time-temperature superposition method in thermal aging life prediction of shipboard cables

The life of shipboard cables will decrease due to the complex aging processes. In terms of the safety perspective, remaining life prediction of the cable is essential to maintain a reliable operation. In this paper, firstly, based on Arrhenius equation, residual life of new styrene-butadiene cable is calculated; result indicates that the degradation rate which changes with time is proportional to thermal temperature. Then second order dynamic model is adopted into the residual life prediction, combined with the time-temperature superposition method （TTSP）, and a new residual life model is proposed. According to the accelerated thermal aging experiment data and Arrhenius equation, TTSP method demonstrates to be an efficient way for life prediction, and life at normal temperature can be estimated by this model. In order to monitor the state of styrene-butadiene cable more accurately, an improved residual life model based on equivalent environment temperature of cable is proposed, and life of cable under real operation is analyzed. Result indicates that this model is credible and reliable, and it provides an important theoretical base for residual life of cables.     

Parallels and Divergences between Language and Music

Introduction Our most developed and established system of communication is, of course, language. But what we mean by language is a widely recognized problem and the term 'language' has been applied figuratively to all forms of human behaviour. What is clear is that what- ever language may be, it is communicative, and it is not the only system of communication, nor is it the on- ly instrument of human communication, just the most subtle and powerful. Since the last half century, the notion of '…     

Flexural rigidity evolvement laws of reinforced concrete beams strengthened with carbon fiber laminates

Extensive research has shown that externally bonded carbon fiber reinforced polymer (CFRP) laminates are particularly suitable for improving the fatigue behavior of reinforced concrete (RC) beams. This paper presents the research on flexural rigidity evolvement laws by testing 14 simple-supported RC beams strengthened with carbon fiber laminates (CFL) under cyclic load, and 2 under monotone load as a reference. The cyclic load tests revealed the peak load applied onto the surface of a supported RC beam strengthened with CFL is linear to the logarithm of its fatigue life, and the flexural rigidity evolvement undergoes three distinct phases: a rapid decrease from the start to about 5% of the fatigue life; an even development from 5% to about 99% of the fatigue life; and a succedent rapid decrease to failure. When the ratio of fatigue cycles to the fatigue life is within 0.05 to 0.99, the flexural rigidity varies linearly with the ratio. The peak load does not affect the flexural rigidity evolvement if it is not high enough to make the main reinforcements yield. The dependences of the flexural rigidity of specimens formed in the same group upon their fatigue cycles normalized by fatigue life are almost coincident. This implies the flexural rigidity may be a material parameter independent of the stress level. These relationships of flexural rigidity to fatigue cycles, and fatigue life may be able to provide some hints for fatigue design and fatigue life evaluation of RC member strengthened with CFL; nevertheless the findings still need verifying by more experiments.     

The resistant spirit of Jane

Jane is an intelligent, honest, plain-featured young girl forced to endure oppression, inequality and hardships. She tried to preserve her self-respect, independence and self-sufficiency at every stage of her life. During her life, she struggled with social pressure, the temptation of passion and the power of love. She showed her resistant spirit and succeeded at last.     

The importance of botany

The study of plants is important for a number of reasons．Plants ard a fundamental part of lire on earth．Thev generate the oxygen, food, fibres, fuel and medicine that allow higher life forms to exist．Plants also absorb carbon dioxide．a significant greenhouse gas,through photosynthesis(光合作用)．A good under- standing of plants is crucial to the future of human so-