Abrupt near-surface temperature changes in mountainous areas are a special component of the mountain climate system.Fast and accurate measurements of the locations,intensity,and width of the near-surface changes are n...Abrupt near-surface temperature changes in mountainous areas are a special component of the mountain climate system.Fast and accurate measurements of the locations,intensity,and width of the near-surface changes are necessary but highly difficult due to the complicated environmental conditions and instrumental issues.This paper develops a spatial pattern recognition method to measure the near-surface high temperature increase(NSHTI),one of the lesser-attended changes.First,raster window measurement was proposed to calculate the temperature lapse rate using MODIS land surface temperature and SRTM DEM data.It fully considers the terrain heights of two neighboring cells on opposite or adjacent slopes with a moving window of 3×3 cell size.Second,a threshold selection was performed to identify the NSHTI cells using a threshold of-0.65℃/100 m.Then,the NSHTI strips were parameterized through raster vectorization and spatial analysis.Taking Yunnan,a mountainous province in southwestern China,as the study area,the results indicate that the NSHTI cells concentrate in a strip-like pattern along the mountains and valleys,and the strips are almost parallel to the altitude contours with a slight northward uplift.Also,they are located mostly at a 3/5 height of high mountains or within 400 m from the valley floors,where the controlling topographic index is the altitude of the terrain trend surface but not the absolute elevation and the topographic uplift height and cutting depth.Additionally,the NSHTI intensity varies with the geographic locations and the proportions increase with an exponential trend,and the horizontal width has a mean of about 1000 m and a maximum of over 5000 m.The result demonstrates that the proposed method can effectively recognize NSHTI boundaries over mountains,providing support for the modeling of weather and climate systems and the development of mountain resources.展开更多
OBJECTIVE Obstructive sleep apnea(OSA)is a potential cardiovascular risk.We aimed to investigate the association of OSA with heart rhythm disorders and prognosis in elderly patients with new-onset acute myocardial inf...OBJECTIVE Obstructive sleep apnea(OSA)is a potential cardiovascular risk.We aimed to investigate the association of OSA with heart rhythm disorders and prognosis in elderly patients with new-onset acute myocardial infarction(AMI).METHODS We prospectively enrolled 252 AMI elderly patients(mean age,68.5±6.9 years)who were undergoing revascularization and completed a sleep study during their hospitalization.All subjects were categorized into non-OSA(apnea–hypopnea index(AHI)<15,n=130)and OSA(AHI≥15,n=122)groups based on the AHI.The changes in the autonomic nervous system,incidence of arrhythmia during nocturnal sleep,and major adverse cardiovascular and cerebrovascular events(MACCEs)were compared between the groups.RESULTS The mean AHI value in all AMI patients was 22.8±10.9.OSA patients showed higher levels of body mass index and peak high-sensitivity C-reactive protein and lower levels of minimum nocturnal oxygen saturation(Min Sa O2),as well as greater proportion of multivessel coronary artery disease(all P<0.05).The OSA group also showed significant increases in heart rate variability and heart rate turbulence onset(both P<0.05)and higher incidence of arrhythmia(including sinus,atrial,and ventricular in origin).At a median follow-up of 6 months(mean 0.8–1.6 years),OSA(AHI≥15)combined with hypoxia(Min Sa O2≤80%)was independently associated with the incidence of MACCEs(hazard ratio[HR]:4.536;95%confidence interval[CI]:1.461-14.084,P=0.009)after adjusting for traditional risk factors.CONCLUSIONS OSA and OSA-induced hypoxia may correlate with the severity of myocardial infarction,increase the occurrence of heart rhythm disorders in elderly subacute MI patients,and worsen their short-term poor outcomes.展开更多
Organ size is an important trait of many crops that is influenced by internal and environmental signals and controlled by a combina- tion of factors during organogenesis （I（rizek, 2009）. The final size of plant org...Organ size is an important trait of many crops that is influenced by internal and environmental signals and controlled by a combina- tion of factors during organogenesis （I（rizek, 2009）. The final size of plant organs is determined by two successive but overlapping pro- cesses： cell division, which increases cell number, and cell expan- sion, which determines final cell size （Anastasiou and Lenhard, 2007）. Some genes have been identified to control organ size by regulating cell division and for cell expansion in plants.展开更多
Osteogenesis imperfecta（OI） comprises a group of heritable connective tissue disorders generally defined by recurrent fractures, low bone mass, short stature and skeletal fragility. Beyond the skeletal complications...Osteogenesis imperfecta（OI） comprises a group of heritable connective tissue disorders generally defined by recurrent fractures, low bone mass, short stature and skeletal fragility. Beyond the skeletal complications of OI,many patients also report intolerance to physical activity, fatigue and muscle weakness. Indeed, recent studies have demonstrated that skeletal muscle is also negatively affected by OI, both directly and indirectly. Given the well-established interdependence of bone and skeletal muscle in both physiology and pathophysiology and the observations of skeletal muscle pathology in patients with OI, we investigated the therapeutic potential of simultaneous anabolic targeting of both bone and skeletal muscle using a soluble activin receptor 2B（ACVR2B） in a mouse model of type Ⅲ OI（oim）. Treatment of 12-week-old oim mice with ACVR2 B for 4 weeks resulted in significant increases in both bone and muscle that were similar to those observed in healthy,wild-type littermates. This proof of concept study provides encouraging evidence for a holistic approach to treating the deleterious consequences of OI in the musculoskeletal system.展开更多
Background Many young adults with moderate hyperlipidemia do not meet statin treatment criteria under the new American Heart Association/American College of Cardiology cholesterol guidelines because they focus on 10-y...Background Many young adults with moderate hyperlipidemia do not meet statin treatment criteria under the new American Heart Association/American College of Cardiology cholesterol guidelines because they focus on 10-year cardiovascular risk. We evaluated the association between years of exposure to hypercholesterolemia in early adulthood and future coronary heart disease （CHD） risk.展开更多
From December 1996 to January 1997;A s ampling survey of the income level of urban residents in China was conducted jointly by the State Statisti-cal Bureau。the Ministry of Iabour,the All1-China Federation of Trade U...From December 1996 to January 1997;A s ampling survey of the income level of urban residents in China was conducted jointly by the State Statisti-cal Bureau。the Ministry of Iabour,the All1-China Federation of Trade U-nions,the Ministry of Gvi1 Affairs,展开更多
Situated in the southern suburbs of Guilin City and founded in 1966, the Guilin Rubber Machinery Factory is a special factory under the Ministry of the Chemical Industry producing rubber machinery. The factory has a s...Situated in the southern suburbs of Guilin City and founded in 1966, the Guilin Rubber Machinery Factory is a special factory under the Ministry of the Chemical Industry producing rubber machinery. The factory has a staff of 1,900. fixed assets of RMB 110 million,advanced equipment, a strong technical force and complete product categories.Its main products—double-mold tyre setting vulcanizers—account for展开更多
ZTE Corporation has reported that the Patent Protection Association of China （PPAC） recently released patent application rankings for 2009 with ZTE, Huawei and Hongfujin claiming the top three spots on the ranking l...ZTE Corporation has reported that the Patent Protection Association of China （PPAC） recently released patent application rankings for 2009 with ZTE, Huawei and Hongfujin claiming the top three spots on the ranking list.展开更多
According to statistics,China and Israel’s bilateral trade volume had reached 1142 billion USD by the end of 2015.China’s direct investment into Israel surpassed 6billion USD,and Israel’s investment in China surpas...According to statistics,China and Israel’s bilateral trade volume had reached 1142 billion USD by the end of 2015.China’s direct investment into Israel surpassed 6billion USD,and Israel’s investment in China surpassed 1 billion USD.China has become Israel’s largest trading partner in Asia and thirdlargest trading partner in the world.展开更多
The Chinese government has made great efforts to increase investment in science, technology and education, Vice Premier Li Lanqing told the country’s top legislators on August 24. A total of 146 billion yuan (about U...The Chinese government has made great efforts to increase investment in science, technology and education, Vice Premier Li Lanqing told the country’s top legislators on August 24. A total of 146 billion yuan (about US$17.6 billion) was raised nationwide for science and technology in 1999, representing an increase of 12.5% over the previous year, among which funds for research and development展开更多
Background President Obama will soon be required to decide whether to impose quotas or other restrictions against imports of passenger and light truck tires from China.
The increase of actual use of foreign investment in China’s western regions exceeded the nation’s average by 128 percentage points in the first two months this year,said an official of the ministry of commerce on Su...The increase of actual use of foreign investment in China’s western regions exceeded the nation’s average by 128 percentage points in the first two months this year,said an official of the ministry of commerce on Sunday.展开更多
AT the March 4 press conference during the Fourth Session of the 11th National People’s Congress(NPC), spokesman Li Zhaoxing said that China will raise its defense budget by about 12.7 percent to 601.1 billion yuan($...AT the March 4 press conference during the Fourth Session of the 11th National People’s Congress(NPC), spokesman Li Zhaoxing said that China will raise its defense budget by about 12.7 percent to 601.1 billion yuan($91.5 billion),accounting for 6 percent of this year’s budgetary fiscal expenditure. The percentage is slightly down compared to that of previous years. But the two-digit growth has again sparked heated debate among foreign media.Some of them question the展开更多
2009 was a disappointing year to export sector. In January to November of 2009, China’s textile and garment exports fell by 11.02percent year on year to US $154.12 billion,
There are controversies and misunderstandings with the term “relativistic mass”. So, alternative concepts must be considered. It is postulated herewith that the stronger force required to accelerate an object moving...There are controversies and misunderstandings with the term “relativistic mass”. So, alternative concepts must be considered. It is postulated herewith that the stronger force required to accelerate an object moving at a faster speed is due to the increase of its inertia. That ensues in a rise in the gravitational force required to pull that object, and thereby brings to an increase in the gravitational constant. In this paper a formula is derived to calculate these variations in the gravitational constant, which is: . This makes the use of the term “relativistic mass” unnecessary.展开更多
In the new released article of the Journal of Sport and Health Science,Zaccardi et al.1 provide compelling evidence that engaging in higher volumes and intensities of physical activity(PA)increases life expectancy in ...In the new released article of the Journal of Sport and Health Science,Zaccardi et al.1 provide compelling evidence that engaging in higher volumes and intensities of physical activity(PA)increases life expectancy in older men and women enrolled in the UK Biobank study.The study included 30,820 men and 40,953 women with median ages of 63.1 years and 61.9 years,respectively.Study participants wore accelerometers to track their time and intensity of PA for 7 days at baseline.展开更多
The U.S.administration's decision tounilaterally impose sweeping tariff increas-es on tmported goods represents a signifi-cant challenge to the existing global tradingsystem,which has long been structuredaround mu...The U.S.administration's decision tounilaterally impose sweeping tariff increas-es on tmported goods represents a signifi-cant challenge to the existing global tradingsystem,which has long been structuredaround multilateral(WTO),regional,andbilateral(FTA)trade agreements.展开更多
基金supported by the National Natural Science Foundation of China (Grant No. 42061004)the Joint Special Project of Agricultural Basic Research of Yunnan Province (Grant No. 202101BD070001093)the Youth Special Project of Xingdian Talent Support Program of Yunnan Province
文摘Abrupt near-surface temperature changes in mountainous areas are a special component of the mountain climate system.Fast and accurate measurements of the locations,intensity,and width of the near-surface changes are necessary but highly difficult due to the complicated environmental conditions and instrumental issues.This paper develops a spatial pattern recognition method to measure the near-surface high temperature increase(NSHTI),one of the lesser-attended changes.First,raster window measurement was proposed to calculate the temperature lapse rate using MODIS land surface temperature and SRTM DEM data.It fully considers the terrain heights of two neighboring cells on opposite or adjacent slopes with a moving window of 3×3 cell size.Second,a threshold selection was performed to identify the NSHTI cells using a threshold of-0.65℃/100 m.Then,the NSHTI strips were parameterized through raster vectorization and spatial analysis.Taking Yunnan,a mountainous province in southwestern China,as the study area,the results indicate that the NSHTI cells concentrate in a strip-like pattern along the mountains and valleys,and the strips are almost parallel to the altitude contours with a slight northward uplift.Also,they are located mostly at a 3/5 height of high mountains or within 400 m from the valley floors,where the controlling topographic index is the altitude of the terrain trend surface but not the absolute elevation and the topographic uplift height and cutting depth.Additionally,the NSHTI intensity varies with the geographic locations and the proportions increase with an exponential trend,and the horizontal width has a mean of about 1000 m and a maximum of over 5000 m.The result demonstrates that the proposed method can effectively recognize NSHTI boundaries over mountains,providing support for the modeling of weather and climate systems and the development of mountain resources.
基金supported by National Natural Science Youth Fund of China(81100098)Shanghai Municipal Commission of Health and Family Planning for Key Discipline Establishment(2015ZB0503&201840083)Production,Teaching and Research Program for University Teachers in Shanghai(RC20190079)。
文摘OBJECTIVE Obstructive sleep apnea(OSA)is a potential cardiovascular risk.We aimed to investigate the association of OSA with heart rhythm disorders and prognosis in elderly patients with new-onset acute myocardial infarction(AMI).METHODS We prospectively enrolled 252 AMI elderly patients(mean age,68.5±6.9 years)who were undergoing revascularization and completed a sleep study during their hospitalization.All subjects were categorized into non-OSA(apnea–hypopnea index(AHI)<15,n=130)and OSA(AHI≥15,n=122)groups based on the AHI.The changes in the autonomic nervous system,incidence of arrhythmia during nocturnal sleep,and major adverse cardiovascular and cerebrovascular events(MACCEs)were compared between the groups.RESULTS The mean AHI value in all AMI patients was 22.8±10.9.OSA patients showed higher levels of body mass index and peak high-sensitivity C-reactive protein and lower levels of minimum nocturnal oxygen saturation(Min Sa O2),as well as greater proportion of multivessel coronary artery disease(all P<0.05).The OSA group also showed significant increases in heart rate variability and heart rate turbulence onset(both P<0.05)and higher incidence of arrhythmia(including sinus,atrial,and ventricular in origin).At a median follow-up of 6 months(mean 0.8–1.6 years),OSA(AHI≥15)combined with hypoxia(Min Sa O2≤80%)was independently associated with the incidence of MACCEs(hazard ratio[HR]:4.536;95%confidence interval[CI]:1.461-14.084,P=0.009)after adjusting for traditional risk factors.CONCLUSIONS OSA and OSA-induced hypoxia may correlate with the severity of myocardial infarction,increase the occurrence of heart rhythm disorders in elderly subacute MI patients,and worsen their short-term poor outcomes.
基金supported by the Chinese National Major Program on Transgenic Organisms of the Ministry of Agriculture of China (2014ZX08009-003-003)
文摘Organ size is an important trait of many crops that is influenced by internal and environmental signals and controlled by a combina- tion of factors during organogenesis （I（rizek, 2009）. The final size of plant organs is determined by two successive but overlapping pro- cesses： cell division, which increases cell number, and cell expan- sion, which determines final cell size （Anastasiou and Lenhard, 2007）. Some genes have been identified to control organ size by regulating cell division and for cell expansion in plants.
基金supported by NIAMS,of the National Institutes of Health,under award numbers R01AR062074 (to DJD) and R01AR060636 (to S-JL)the Harry Headley Charitable and Research Foundation,Punta Gorda,FL(to ELG-L)
文摘Osteogenesis imperfecta（OI） comprises a group of heritable connective tissue disorders generally defined by recurrent fractures, low bone mass, short stature and skeletal fragility. Beyond the skeletal complications of OI,many patients also report intolerance to physical activity, fatigue and muscle weakness. Indeed, recent studies have demonstrated that skeletal muscle is also negatively affected by OI, both directly and indirectly. Given the well-established interdependence of bone and skeletal muscle in both physiology and pathophysiology and the observations of skeletal muscle pathology in patients with OI, we investigated the therapeutic potential of simultaneous anabolic targeting of both bone and skeletal muscle using a soluble activin receptor 2B（ACVR2B） in a mouse model of type Ⅲ OI（oim）. Treatment of 12-week-old oim mice with ACVR2 B for 4 weeks resulted in significant increases in both bone and muscle that were similar to those observed in healthy,wild-type littermates. This proof of concept study provides encouraging evidence for a holistic approach to treating the deleterious consequences of OI in the musculoskeletal system.
文摘Background Many young adults with moderate hyperlipidemia do not meet statin treatment criteria under the new American Heart Association/American College of Cardiology cholesterol guidelines because they focus on 10-year cardiovascular risk. We evaluated the association between years of exposure to hypercholesterolemia in early adulthood and future coronary heart disease （CHD） risk.
文摘From December 1996 to January 1997;A s ampling survey of the income level of urban residents in China was conducted jointly by the State Statisti-cal Bureau。the Ministry of Iabour,the All1-China Federation of Trade U-nions,the Ministry of Gvi1 Affairs,
文摘Situated in the southern suburbs of Guilin City and founded in 1966, the Guilin Rubber Machinery Factory is a special factory under the Ministry of the Chemical Industry producing rubber machinery. The factory has a staff of 1,900. fixed assets of RMB 110 million,advanced equipment, a strong technical force and complete product categories.Its main products—double-mold tyre setting vulcanizers—account for
文摘ZTE Corporation has reported that the Patent Protection Association of China （PPAC） recently released patent application rankings for 2009 with ZTE, Huawei and Hongfujin claiming the top three spots on the ranking list.
文摘According to statistics,China and Israel’s bilateral trade volume had reached 1142 billion USD by the end of 2015.China’s direct investment into Israel surpassed 6billion USD,and Israel’s investment in China surpassed 1 billion USD.China has become Israel’s largest trading partner in Asia and thirdlargest trading partner in the world.
文摘The Chinese government has made great efforts to increase investment in science, technology and education, Vice Premier Li Lanqing told the country’s top legislators on August 24. A total of 146 billion yuan (about US$17.6 billion) was raised nationwide for science and technology in 1999, representing an increase of 12.5% over the previous year, among which funds for research and development
文摘Background President Obama will soon be required to decide whether to impose quotas or other restrictions against imports of passenger and light truck tires from China.
文摘The increase of actual use of foreign investment in China’s western regions exceeded the nation’s average by 128 percentage points in the first two months this year,said an official of the ministry of commerce on Sunday.
文摘AT the March 4 press conference during the Fourth Session of the 11th National People’s Congress(NPC), spokesman Li Zhaoxing said that China will raise its defense budget by about 12.7 percent to 601.1 billion yuan($91.5 billion),accounting for 6 percent of this year’s budgetary fiscal expenditure. The percentage is slightly down compared to that of previous years. But the two-digit growth has again sparked heated debate among foreign media.Some of them question the
文摘2009 was a disappointing year to export sector. In January to November of 2009, China’s textile and garment exports fell by 11.02percent year on year to US $154.12 billion,
文摘There are controversies and misunderstandings with the term “relativistic mass”. So, alternative concepts must be considered. It is postulated herewith that the stronger force required to accelerate an object moving at a faster speed is due to the increase of its inertia. That ensues in a rise in the gravitational force required to pull that object, and thereby brings to an increase in the gravitational constant. In this paper a formula is derived to calculate these variations in the gravitational constant, which is: . This makes the use of the term “relativistic mass” unnecessary.
文摘In the new released article of the Journal of Sport and Health Science,Zaccardi et al.1 provide compelling evidence that engaging in higher volumes and intensities of physical activity(PA)increases life expectancy in older men and women enrolled in the UK Biobank study.The study included 30,820 men and 40,953 women with median ages of 63.1 years and 61.9 years,respectively.Study participants wore accelerometers to track their time and intensity of PA for 7 days at baseline.
文摘The U.S.administration's decision tounilaterally impose sweeping tariff increas-es on tmported goods represents a signifi-cant challenge to the existing global tradingsystem,which has long been structuredaround multilateral(WTO),regional,andbilateral(FTA)trade agreements.
