As early as the 1920sand the 1930s,thelate Guiseppe Tucci,anoted ltalian Tibetolo-gist.turned his eyes toancient tombs in westernTibet. He found tombs coveredwith stone slabs in Leh City inLadakh According to hiss rec...As early as the 1920sand the 1930s,thelate Guiseppe Tucci,anoted ltalian Tibetolo-gist.turned his eyes toancient tombs in westernTibet. He found tombs coveredwith stone slabs in Leh City inLadakh According to hiss recol-lection,"tombs,built withunpolished stones....eachmeasure 1.8 meters long,1.4meters wide and 1.8 metersdeep. Handmadepotteries....were sometimesadorned with deep red pat-terns."展开更多
The ratio of metal：P stoichiometry was used to identify the accumulation pathways of heavy metals （V, Cr, Co, Ni, Cu, Cd, and Pb） from periphyton to snails Cipangopaludina chinensis Gray （C. chinensis） in the Bai...The ratio of metal：P stoichiometry was used to identify the accumulation pathways of heavy metals （V, Cr, Co, Ni, Cu, Cd, and Pb） from periphyton to snails Cipangopaludina chinensis Gray （C. chinensis） in the Bai River watershed. The results showed that periphyton communities were mainly composed of two types of algae, filamentous green algae and unicellular diatoms. The proportion of unicellular diatoms in the periphyton community is a key factor that influences metal accumulation in C. chinensis. The V, Cr, Co, Ni, and Cd content of C. chinensis increased steadily as the corresponding metal content of periphyton increased, but Cu and Pb in the snail did not increase in the periphyton. Mechanisms of V, Cr, and Ni accumulation were found to be related to the proportion of diatoms, while Cd and Pb accumulation were dependent on the physiological characteristics of C. chinensis. The accumulation of Cu in C. chinensis was closely related to their grazing behavior. The metal：P stoichiometry revealed that Cr, Ni, and Cd can reduce the potential ecological risks associated with increased P inputs to the ecosystem. V and Co were considered to be relatively safe, regardless of the periphyton P content. Finally, Pb may not be prone to transfer to higher trophic levels, and may pose the lowest ecological risks of the studied heavy metals, but Cu can cause potential ecological risks when eutrophication has occurred.展开更多
时间,是一种可感的概念,一种可见的现象。我国有妇孺皆知形容时间的成语——光阴似箭,日月如梭。然而,本文却出语惊人——One way of thinking about time is to imagine a world without time.以及as long as they debate the nature o...时间,是一种可感的概念,一种可见的现象。我国有妇孺皆知形容时间的成语——光阴似箭,日月如梭。然而,本文却出语惊人——One way of thinking about time is to imagine a world without time.以及as long as they debate the nature of time, time will remain a mystery.更令读者不敢设想的是,本文提出了一个问题:Can time move backward?此文思维独到,想象驰骋。它不仅令人信服地追溯了the first accepted periods of time,遥想年月日的产生,而且相应回顾了sundial(日晷),hourglass(沙漏)以及mechanical clocks and watches的先后问市,以及24 time areas的诞生。值得一提的是,本文系一篇广播文稿,语言明快上口,简洁风趣。如有兴致,不妨诵读一遍。你一定会感到别样的情趣。展开更多
On Oct 1,2017,Mystery of Terracotta Warriors aired on Channel 1 of Romania’s state televisio n,in troducing the achievements that China’s Shaaxi province and the city of Xi’an had made in conserving historic herita...On Oct 1,2017,Mystery of Terracotta Warriors aired on Channel 1 of Romania’s state televisio n,in troducing the achievements that China’s Shaaxi province and the city of Xi’an had made in conserving historic heritages and developing the economy,tourism,education and culture,as well as changes that had taken place in society,urban appearance and people’s lives.Shaanxi,especially its capital,Xi’an,展开更多
海军大连舰艇学院的白永康先生今年4月2日从VOA Science Report中获得了本篇材料。这篇材料向人们提供了一则重要的科技信息。 虽然Pheromone不是一个新词(《英汉大词典》对该词的释义是:信息素;外激素,生物体释放的一种化学物质,能为...海军大连舰艇学院的白永康先生今年4月2日从VOA Science Report中获得了本篇材料。这篇材料向人们提供了一则重要的科技信息。 虽然Pheromone不是一个新词(《英汉大词典》对该词的释义是:信息素;外激素,生物体释放的一种化学物质,能为一定距离外的同种生物所觉察并影响其行为。),但是,本文新意拂面。它的开头就不俗: Two people who become friends or lovers quickly have what is known as a specialchemistry. They seem to have an almost immediate understanding of each other. 说句笑话,假如对Pheromone的研究获得突破性进展,那么,对国人的“一见钟情”之说将有新的更准确的说法。若将Pheromone用于择偶,到那时,婚姻的成功率将是100％,社会的离婚率将等于零。 我们感谢白永康先生的来稿,希望他和其他读者不断赐文。展开更多
Rebecca is Daphne du Maurier's representative work which combines Victorian romance with Gothic horror.Its diction skills contribute tremendously to its unfailing appeal as an exquisite literary work.A survey of R...Rebecca is Daphne du Maurier's representative work which combines Victorian romance with Gothic horror.Its diction skills contribute tremendously to its unfailing appeal as an exquisite literary work.A survey of Rebecca's stage,motif and mood is indispensable to a full understanding of its stylistic diction choice.In addition,to better appreciate the work,one needs to probe into certain specific linguistic measures or approaches.展开更多
Torquigener albomaculosus,also known as the white-spotted pufferfish,is known for creating circular nests in the underwater sand as part of the mating ritual.The nests are built by the males to attract females through...Torquigener albomaculosus,also known as the white-spotted pufferfish,is known for creating circular nests in the underwater sand as part of the mating ritual.The nests are built by the males to attract females through the nest’s impressive design and related ability to gather fine sand particles.As the fluid-dynamic processes associated with these unique nests are still almost completely unknown,in the present study,an analysis has been conducted to investigate how the geometric parameters related to the nest design influence the fluid velocity in its center.For this reason,a geometric model of the nest consisting of 24 channels,where each unit channel can be described by three strips of broken lines,has been introduced,and a multivariate analysis has been implemented to determine the relative weight of each considered parameter.In particular,the“optimal”combination of parameters has been obtained by means of an orthogonal design approach.We show that these bio-nest structures also display a potential for significant application in marine litter collection,or for use as a buffer against the waves in offshore areas.展开更多
Plum pox potyvirus, also known as Sharka, is a disease of plum, first registered in Bulgaria, 100 years ago. The official scientific opinion is the plum tree should be cut, pulled out of the ground and not to plant an...Plum pox potyvirus, also known as Sharka, is a disease of plum, first registered in Bulgaria, 100 years ago. The official scientific opinion is the plum tree should be cut, pulled out of the ground and not to plant anything in that place for five years. The research was directed at plants so the cause was sought in a virus considered to be cancer. However, a single phenomenon that, for instance, there is only a healthy plum tree among the infected ones, that it blossoms on a hill but not at the foot hill, and during the dry and rainy year, contributed to the fact that there are many dilemmas and mystifications in searching for the cause of the disease. New theory proves to be the cause of diseases lies in the soil i.e., in acid rains, that the disease could be cured and it is noncommunicable. At work ＂the resolution of mysterious plum pox phenomena caused by PPV＂ on the concrete examples, there were answers to all questions known to author during the specific period of time （during the war in Bosnia and Herzegovina）.展开更多
The core of this study is Saint John the Apostle＇s statement that says God is love. From Love, God created the world and man. Also from love, He sent His Son, Jesus Christ, to redeem the sin committed by the primordi...The core of this study is Saint John the Apostle＇s statement that says God is love. From Love, God created the world and man. Also from love, He sent His Son, Jesus Christ, to redeem the sin committed by the primordial couple. In other words, the absolute Love that belongs to the Supreme Being is the source and sap of Creation, the source of life and the whole meaning of existence. Thus, Love is a gift through which God shows His Love for men, making possible, at the same time, their Love for themselves and for others. Moreover, the Resurrection is the victory of Love over death. The keys that open the gates of Love are faith and allegiance, accomplishing His commandments andprayer As a result, an entire Theology of Love develops, stressing the fact that divine Love is accomplished and is a Love without death to which we all should aspire.展开更多
文摘As early as the 1920sand the 1930s,thelate Guiseppe Tucci,anoted ltalian Tibetolo-gist.turned his eyes toancient tombs in westernTibet. He found tombs coveredwith stone slabs in Leh City inLadakh According to hiss recol-lection,"tombs,built withunpolished stones....eachmeasure 1.8 meters long,1.4meters wide and 1.8 metersdeep. Handmadepotteries....were sometimesadorned with deep red pat-terns."
基金supported by the National Natural Science Foundation of China (No. 21107126)the Ministry ofWater Resources’ Special Funds for Scientific Research on Public Causes (No. 200901008)the National Water Pollution Control Program (Special Water Project) (No.2008ZX07209-010)
文摘The ratio of metal：P stoichiometry was used to identify the accumulation pathways of heavy metals （V, Cr, Co, Ni, Cu, Cd, and Pb） from periphyton to snails Cipangopaludina chinensis Gray （C. chinensis） in the Bai River watershed. The results showed that periphyton communities were mainly composed of two types of algae, filamentous green algae and unicellular diatoms. The proportion of unicellular diatoms in the periphyton community is a key factor that influences metal accumulation in C. chinensis. The V, Cr, Co, Ni, and Cd content of C. chinensis increased steadily as the corresponding metal content of periphyton increased, but Cu and Pb in the snail did not increase in the periphyton. Mechanisms of V, Cr, and Ni accumulation were found to be related to the proportion of diatoms, while Cd and Pb accumulation were dependent on the physiological characteristics of C. chinensis. The accumulation of Cu in C. chinensis was closely related to their grazing behavior. The metal：P stoichiometry revealed that Cr, Ni, and Cd can reduce the potential ecological risks associated with increased P inputs to the ecosystem. V and Co were considered to be relatively safe, regardless of the periphyton P content. Finally, Pb may not be prone to transfer to higher trophic levels, and may pose the lowest ecological risks of the studied heavy metals, but Cu can cause potential ecological risks when eutrophication has occurred.
文摘时间,是一种可感的概念,一种可见的现象。我国有妇孺皆知形容时间的成语——光阴似箭,日月如梭。然而,本文却出语惊人——One way of thinking about time is to imagine a world without time.以及as long as they debate the nature of time, time will remain a mystery.更令读者不敢设想的是,本文提出了一个问题:Can time move backward?此文思维独到,想象驰骋。它不仅令人信服地追溯了the first accepted periods of time,遥想年月日的产生,而且相应回顾了sundial(日晷),hourglass(沙漏)以及mechanical clocks and watches的先后问市,以及24 time areas的诞生。值得一提的是,本文系一篇广播文稿,语言明快上口,简洁风趣。如有兴致,不妨诵读一遍。你一定会感到别样的情趣。
文摘On Oct 1,2017,Mystery of Terracotta Warriors aired on Channel 1 of Romania’s state televisio n,in troducing the achievements that China’s Shaaxi province and the city of Xi’an had made in conserving historic heritages and developing the economy,tourism,education and culture,as well as changes that had taken place in society,urban appearance and people’s lives.Shaanxi,especially its capital,Xi’an,
文摘海军大连舰艇学院的白永康先生今年4月2日从VOA Science Report中获得了本篇材料。这篇材料向人们提供了一则重要的科技信息。 虽然Pheromone不是一个新词(《英汉大词典》对该词的释义是:信息素;外激素,生物体释放的一种化学物质,能为一定距离外的同种生物所觉察并影响其行为。),但是,本文新意拂面。它的开头就不俗: Two people who become friends or lovers quickly have what is known as a specialchemistry. They seem to have an almost immediate understanding of each other. 说句笑话,假如对Pheromone的研究获得突破性进展,那么,对国人的“一见钟情”之说将有新的更准确的说法。若将Pheromone用于择偶,到那时,婚姻的成功率将是100％,社会的离婚率将等于零。 我们感谢白永康先生的来稿,希望他和其他读者不断赐文。
文摘Rebecca is Daphne du Maurier's representative work which combines Victorian romance with Gothic horror.Its diction skills contribute tremendously to its unfailing appeal as an exquisite literary work.A survey of Rebecca's stage,motif and mood is indispensable to a full understanding of its stylistic diction choice.In addition,to better appreciate the work,one needs to probe into certain specific linguistic measures or approaches.
基金This work is supported by the Henan Provincial Science and Technology Research Project(222102220068).
文摘Torquigener albomaculosus,also known as the white-spotted pufferfish,is known for creating circular nests in the underwater sand as part of the mating ritual.The nests are built by the males to attract females through the nest’s impressive design and related ability to gather fine sand particles.As the fluid-dynamic processes associated with these unique nests are still almost completely unknown,in the present study,an analysis has been conducted to investigate how the geometric parameters related to the nest design influence the fluid velocity in its center.For this reason,a geometric model of the nest consisting of 24 channels,where each unit channel can be described by three strips of broken lines,has been introduced,and a multivariate analysis has been implemented to determine the relative weight of each considered parameter.In particular,the“optimal”combination of parameters has been obtained by means of an orthogonal design approach.We show that these bio-nest structures also display a potential for significant application in marine litter collection,or for use as a buffer against the waves in offshore areas.
文摘Plum pox potyvirus, also known as Sharka, is a disease of plum, first registered in Bulgaria, 100 years ago. The official scientific opinion is the plum tree should be cut, pulled out of the ground and not to plant anything in that place for five years. The research was directed at plants so the cause was sought in a virus considered to be cancer. However, a single phenomenon that, for instance, there is only a healthy plum tree among the infected ones, that it blossoms on a hill but not at the foot hill, and during the dry and rainy year, contributed to the fact that there are many dilemmas and mystifications in searching for the cause of the disease. New theory proves to be the cause of diseases lies in the soil i.e., in acid rains, that the disease could be cured and it is noncommunicable. At work ＂the resolution of mysterious plum pox phenomena caused by PPV＂ on the concrete examples, there were answers to all questions known to author during the specific period of time （during the war in Bosnia and Herzegovina）.
文摘The core of this study is Saint John the Apostle＇s statement that says God is love. From Love, God created the world and man. Also from love, He sent His Son, Jesus Christ, to redeem the sin committed by the primordial couple. In other words, the absolute Love that belongs to the Supreme Being is the source and sap of Creation, the source of life and the whole meaning of existence. Thus, Love is a gift through which God shows His Love for men, making possible, at the same time, their Love for themselves and for others. Moreover, the Resurrection is the victory of Love over death. The keys that open the gates of Love are faith and allegiance, accomplishing His commandments andprayer As a result, an entire Theology of Love develops, stressing the fact that divine Love is accomplished and is a Love without death to which we all should aspire.
