The purpose of this experiment is to investigate the effect of pulsed electromagnetic field (PEMF) and biomechanical force on orthodontic tooth movement by means of measurement of gross tooth movement anatomic data, l...The purpose of this experiment is to investigate the effect of pulsed electromagnetic field (PEMF) and biomechanical force on orthodontic tooth movement by means of measurement of gross tooth movement anatomic data, light microscopic evaluation and transmission electromicroscopic evaluation. The results indicate that PEMF combined with biomechanical force could accelerate the rate and amount of orthodontic tooth movement, enhance bone deposition in tension side and resorption in compression side. The results also suggest that PEMF could accelerate orthodontic tooth movement as a result of increase in quantity of active cells, PEMF couldn’t change the ultrastructure of cells.展开更多
ZTE Corporation released its 2002 annualreport on March 12, 2003, proclaimingthat its main business line revenue andnet profit reached 11 billion RMB and0.57 billion RMB respectively.As a major manufacturer of telecom...ZTE Corporation released its 2002 annualreport on March 12, 2003, proclaimingthat its main business line revenue andnet profit reached 11 billion RMB and0.57 billion RMB respectively.As a major manufacturer of telecommunica-tion equipment in China, ZTE constantly putsemphasis on R&D so as to forge competitiveedge.Establishing Scientific Management展开更多
Electcoms, the largest professional trunking network operator in Malaysia, has launched a network based on ZTE’s Global Open Trunking Architecture (GoTa). The launch, in Kuala Lumpur, Malaysia,
In 2010, over 300 billion yuan ($47.31 billion) are invested in renewable energy sources in China, outranking every other country. Hence, China has become one of the world’s biggest investors in renewable energy sour...In 2010, over 300 billion yuan ($47.31 billion) are invested in renewable energy sources in China, outranking every other country. Hence, China has become one of the world’s biggest investors in renewable energy sources.展开更多
Under the pressure of the anti- dumping investigations on silk fabrics launched by the Indian government, the China Chamber of Commerce for Import & Export of Textiles (CCCT) announced that it has decided not to h...Under the pressure of the anti- dumping investigations on silk fabrics launched by the Indian government, the China Chamber of Commerce for Import & Export of Textiles (CCCT) announced that it has decided not to hold the Silk Trade Fair (Autumn) this year, in order to avoid the negative effects the case might bring.展开更多
While most of the shops in Tibet’s tourism hot spot of Nyingchi city sell local tourism products,one store in the city attracts customers by selling archery supplies.The owner of the shop is called Baluk,a Tibetan fr...While most of the shops in Tibet’s tourism hot spot of Nyingchi city sell local tourism products,one store in the city attracts customers by selling archery supplies.The owner of the shop is called Baluk,a Tibetan from the city’s Mainling County,and the main product of his shop is arrowhead for the local whistling archery sports.The sport is widely practiced in the city’s rural展开更多
Importance Tics usually start around 4–6 years old and affect about 1%of school‐age children.Premonitory urges(PUs)are sensory phenomena that precede tics and are often described as unpleasant feelings.Recent eviden...Importance Tics usually start around 4–6 years old and affect about 1%of school‐age children.Premonitory urges(PUs)are sensory phenomena that precede tics and are often described as unpleasant feelings.Recent evidence supports a relationship between PUs and tic severity,but reports are conflicting.In addition,there is no report of PUs in the Chinese population.Objective To investigate the correlation between PUs and tic symptoms in the Chinese population with tic disorders.Methods We recruited 252 Chinese individuals with chronic tic disorders(age 5–16 years).The Yale Global Tic Severity Scale(YGTSS)was used to assess tic symptoms,and the Premonitory Urge for Tics Scale(PUTS)was used to assess PUs.We calculated Spearman correlations between PUTS and YGTSS scores,and constructed a linear regression model to predict the tic symptom severity by PUs.Results There was a significant positive correlation between PU severity(PUTS scores)and motor tic severity,total tic severity,tic‐caused impairment(YGTSS scores)(P<0.05).PU severity was a significant positive predictor of tic symptom severity(standardized beta coefficient=0.174,t=2.786,P=0.006).Interpretation We provide evidence for a correlation between PUs and tic symptoms.PU severity predicts tic symptom severity.Further research on PUs is needed to clarify the shared brain mechanism with tics,and their role in tic expression.A suitable tool to assess PUs in younger children is also needed.展开更多
John Glenn(约翰·格伦,我们不妨尊称他“格老”)是美国最年长的宇航员。这名36年前作为美国第一个进入地球轨道的宇航员,如今又以77岁的古稀高龄,兼有美国参议员的显赫身份,到太空作了一周的“逍遥游”。然而,此游并不“逍遥”:他...John Glenn(约翰·格伦,我们不妨尊称他“格老”)是美国最年长的宇航员。这名36年前作为美国第一个进入地球轨道的宇航员,如今又以77岁的古稀高龄,兼有美国参议员的显赫身份,到太空作了一周的“逍遥游”。然而,此游并不“逍遥”:他浑身插满实验管、感应器,还要不断地抽血、验尿、吞药丸。本文对此情况也略有介绍。笔者要补充的材料是:当Glenn决定以77岁高龄重返太空后,“在家中引来了一片反对声”。可是,他还是毅然重返太空,去当一位医学科学实验的对象,去做人体健康和衰老的过程的研究,被誉为“为实现人类长寿而努力的探索者”。他的崇高精神,令人敬佩！展开更多
WITH the rise in the standard of living, the camera—like the television set, the video cassette recorder and the cassette player—has become another essential entertainment tool for families. If you ask young parents...WITH the rise in the standard of living, the camera—like the television set, the video cassette recorder and the cassette player—has become another essential entertainment tool for families. If you ask young parents who is photographed most in the family, chances are they will readily tell you that the child is the focus.展开更多
文摘The purpose of this experiment is to investigate the effect of pulsed electromagnetic field (PEMF) and biomechanical force on orthodontic tooth movement by means of measurement of gross tooth movement anatomic data, light microscopic evaluation and transmission electromicroscopic evaluation. The results indicate that PEMF combined with biomechanical force could accelerate the rate and amount of orthodontic tooth movement, enhance bone deposition in tension side and resorption in compression side. The results also suggest that PEMF could accelerate orthodontic tooth movement as a result of increase in quantity of active cells, PEMF couldn’t change the ultrastructure of cells.
文摘ZTE Corporation released its 2002 annualreport on March 12, 2003, proclaimingthat its main business line revenue andnet profit reached 11 billion RMB and0.57 billion RMB respectively.As a major manufacturer of telecommunica-tion equipment in China, ZTE constantly putsemphasis on R&D so as to forge competitiveedge.Establishing Scientific Management
文摘Electcoms, the largest professional trunking network operator in Malaysia, has launched a network based on ZTE’s Global Open Trunking Architecture (GoTa). The launch, in Kuala Lumpur, Malaysia,
文摘In 2010, over 300 billion yuan ($47.31 billion) are invested in renewable energy sources in China, outranking every other country. Hence, China has become one of the world’s biggest investors in renewable energy sources.
文摘Under the pressure of the anti- dumping investigations on silk fabrics launched by the Indian government, the China Chamber of Commerce for Import & Export of Textiles (CCCT) announced that it has decided not to hold the Silk Trade Fair (Autumn) this year, in order to avoid the negative effects the case might bring.
文摘While most of the shops in Tibet’s tourism hot spot of Nyingchi city sell local tourism products,one store in the city attracts customers by selling archery supplies.The owner of the shop is called Baluk,a Tibetan from the city’s Mainling County,and the main product of his shop is arrowhead for the local whistling archery sports.The sport is widely practiced in the city’s rural
文摘Importance Tics usually start around 4–6 years old and affect about 1%of school‐age children.Premonitory urges(PUs)are sensory phenomena that precede tics and are often described as unpleasant feelings.Recent evidence supports a relationship between PUs and tic severity,but reports are conflicting.In addition,there is no report of PUs in the Chinese population.Objective To investigate the correlation between PUs and tic symptoms in the Chinese population with tic disorders.Methods We recruited 252 Chinese individuals with chronic tic disorders(age 5–16 years).The Yale Global Tic Severity Scale(YGTSS)was used to assess tic symptoms,and the Premonitory Urge for Tics Scale(PUTS)was used to assess PUs.We calculated Spearman correlations between PUTS and YGTSS scores,and constructed a linear regression model to predict the tic symptom severity by PUs.Results There was a significant positive correlation between PU severity(PUTS scores)and motor tic severity,total tic severity,tic‐caused impairment(YGTSS scores)(P<0.05).PU severity was a significant positive predictor of tic symptom severity(standardized beta coefficient=0.174,t=2.786,P=0.006).Interpretation We provide evidence for a correlation between PUs and tic symptoms.PU severity predicts tic symptom severity.Further research on PUs is needed to clarify the shared brain mechanism with tics,and their role in tic expression.A suitable tool to assess PUs in younger children is also needed.
文摘贵刊第11期发表了“比读”文章“Kiss Lands Iranian Actress andDirector in Court”给读者留下深刻印象。文章精彩,译文漂亮,点评也有水平。现在我又在网上读到一条来自德黑兰的消息,文章出现 gender equality(男女平等)这样的字眼。作为一个女孩,我想,妇女当公交车驾驶员的事情一定会have a positive effect on women’s morale(士气;民心).”
文摘WITH the rise in the standard of living, the camera—like the television set, the video cassette recorder and the cassette player—has become another essential entertainment tool for families. If you ask young parents who is photographed most in the family, chances are they will readily tell you that the child is the focus.
