Utilizing observations by the Sounding of the Atmosphere using Broadband Emission Radiometry(SABER)instrument,we quantitatively assessed the dawn-dusk asymmetry in temperature disturbances within the high-latitude mes...Utilizing observations by the Sounding of the Atmosphere using Broadband Emission Radiometry(SABER)instrument,we quantitatively assessed the dawn-dusk asymmetry in temperature disturbances within the high-latitude mesosphere and lower thermosphere(MLT)during the main phase of geomagnetic storms in this study.An analysis of five geomagnetic superstorm events indicated that during the main phase,negative temperature disturbances were more prevalent on the dawn side than on the dusk side in the high-latitude MLT region.Results of a statistical analysis of 54 geomagnetic storm events also revealed a notable disparity in temperature disturbances between the dawn and dusk sides.At high latitudes,38.2%of the observational points on the dawn side exhibited negative temperature disturbances(less than−5 K),whereas on the dusk side,this percentage was only 29.5%.In contrast,at mid-latitudes,these proportions were 34.1%and 36.5%,respectively,showing no significant difference.We also conducted a statistical analysis of temperature disturbances at different altitudes,which revealed an increase in the proportion of warming disturbances with altitude.Conversely,the proportion of cooling disturbances initially rose with altitude,reaching a peak around 105 km,and subsequently decreased.These temperature disturbance differences could be explained by the day-night asymmetry in vertical wind disturbances during storm conditions.展开更多
In this paper the parallel computing of a grid-point nine-level atmospheric general circulation model on the Dawn 1000 is introduced. The model was developed by the Institute of Atmospheric Physics (IAP), Chinese Acad...In this paper the parallel computing of a grid-point nine-level atmospheric general circulation model on the Dawn 1000 is introduced. The model was developed by the Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS). The Dawn 1000 is a MIMD massive parallel computer made by National Research Center for Intelligent Computer (NCIC), CAS. A two-dimensional domain decomposition method is adopted to perform the parallel computing. The potential ways to increase the speed-up ratio and exploit more resources of future massively parallel supercomputation are also discussed.展开更多
The purpose of this study was to investigate the involvement of growth hormone in the diurnal variation of insulin sensitivity in healthy adults. Afternoon (16:00 hr) or night (23:00 hr) pretreatment with a subcutaneo...The purpose of this study was to investigate the involvement of growth hormone in the diurnal variation of insulin sensitivity in healthy adults. Afternoon (16:00 hr) or night (23:00 hr) pretreatment with a subcutaneous injection of normal saline, human growth hormone to mimic the normal nocturnal rise in growth hormone, or octreotide to inhibit endogenous growth hormone secretion to create a state of relative nocturnal growth hormone deficiency, was given 16 hours before undergoing the modified insulin suppression test in healthy subjects. The morning and evening experiments were separated by an interval of at least 3 days. Thus, each subject was tested on six separate occasions arranged in a random order. A higher value of the steady-state plasma glucose (SSPG) is indicative of lower insulin sensitivity. Plasma glucose, serum insulin, insulin-like growth factor-1, nonesterified fatty acids (NEFA), and metabolic clearance rate of insulin (MCRI) were measured. In the normal saline and human growth hormone groups, SSPG levels were lower in the morning than in the evening. Evening SSPG levels, MCRI, and NEFA concentrations were higher in the participants treated with normal saline and growth hormone than in the octreotide group. Differences in SSPG levels between the morning and evening values were higher in the participants pretreated with normal saline and growth hormone than in those treated with octreotide. A diurnal variation in insulin sensitivity existed in healthy subjects. These results provided direct evidence that the role of growth hormone in regulating insulin sensitivity might be related to changes in the MCRI and the metabolism of NEFA in healthy subjects.展开更多
This year marks the 45th anniversary of Malaysia-China diplomatic relations. In the early 15th Century, Zheng He, a Ming Dynasty maritime explorer, made seven voyages to the Western Seas and passed through the Malacca...This year marks the 45th anniversary of Malaysia-China diplomatic relations. In the early 15th Century, Zheng He, a Ming Dynasty maritime explorer, made seven voyages to the Western Seas and passed through the Malacca Strait more than once, resulting in many tales of trade and cultural exchanges between the peoples of China and Malaysia. Over the past 40 years since the beginning of China’s reform and openingup, Chinese Malaysians have invested in businesses and made donations to schools in China, laying a solid foundation for the further development of Malaysia- China relations.展开更多
The Dawn of Modem Medicine refers to an account of the Revival of the Science and Art of Medicine,which took place in Western Europe during the latter half of the 18^th century and the first part of the 19^th.
IN just two years Malawi had turned into a full-blown dictatorship despite a democratic constitution. Malawi had also turned into an economic basket case without adequate forex and worse still had insulted its donors ...IN just two years Malawi had turned into a full-blown dictatorship despite a democratic constitution. Malawi had also turned into an economic basket case without adequate forex and worse still had insulted its donors and investors, sending some back to their respective countries. All this happened under the rule of President Bingu wa Mutharika who passed away on April 5, 2012 at the age of 78.展开更多
East China Normal University received a text message from a faculty member, which said. ＂Last month, you spent less on meals, Are you in financial difficulty？ If so, please contact me via phone, text message or e-ma...East China Normal University received a text message from a faculty member, which said. ＂Last month, you spent less on meals, Are you in financial difficulty？ If so, please contact me via phone, text message or e-mail.＂展开更多
研究表明不仅糖尿病患者自身容易出现悲伤、焦虑、忧虑等负性情绪,糖尿病的发生对患者家庭成员也会造成隐性的负担,因此,糖尿病的发生常常被视为一个家庭事件。家庭、社会的支持及有效沟通对于糖尿病患者成功进行自我管理至关重要。因此...研究表明不仅糖尿病患者自身容易出现悲伤、焦虑、忧虑等负性情绪,糖尿病的发生对患者家庭成员也会造成隐性的负担,因此,糖尿病的发生常常被视为一个家庭事件。家庭、社会的支持及有效沟通对于糖尿病患者成功进行自我管理至关重要。因此,改善糖尿病患者及其亲人所获得的教育与支持,有利于患者进行有效的自我管理,本文从DAWN2(Diabetes Attitudes,Wishes and Needs2)的最新调查研究结果进行相关探讨,提出了设置糖尿病健康教育门诊、实施糖尿病自我管理教育授权、扩大健康教育支持团队源与加强团队协作护理等,针对糖尿病患者家庭-社会支持的有效措施。展开更多
At about the same time in 1940s when Erwin Schrdinger published his famous little book What Is Life, which sparked the birth of molecular biology, the term epigenetics was coined by the English biologist Conrad Wadd...At about the same time in 1940s when Erwin Schrdinger published his famous little book What Is Life, which sparked the birth of molecular biology, the term epigenetics was coined by the English biologist Conrad Waddington. The concept of epi-inheritance can be traced back to French naturalist Jean-Baptiste Lamarck’s idea of "inheritance展开更多
To determine the influence of pairing status on dawn singing behaviour in pied bush chats Saxicola caprata, we conducted mate removal experiments across eight territories. The experiment was divided into three stages...To determine the influence of pairing status on dawn singing behaviour in pied bush chats Saxicola caprata, we conducted mate removal experiments across eight territories. The experiment was divided into three stages： pre-removal （pairs were present on their respective territories）, removal （females were experimentally removed）, and returned （females were released into the focal pairs＇ territories）. Dawn bout length, song rate, song complexity, percentage performance time, song perch height, and distance of singing location to territory boundary were measured for each male during each experimental stage. We did not find an effect of mate removal on any dawn song characteristics of male pied bush chats suggesting that the presence or absence of a mate does not influence male dawn singing behaviour. Our findings further suggest that males use dawn chorus to mediate social relationships with neighbouring males to proclaim an established territory展开更多
On Dawning-1000, the two-dimension mesh interconnection network enables low-latency, high-bandwidth communication, however, these capabilities have not been realized because of the high processing overhead imposed by ...On Dawning-1000, the two-dimension mesh interconnection network enables low-latency, high-bandwidth communication, however, these capabilities have not been realized because of the high processing overhead imposed by existing com- munication software. Active Messages provide an efficient communication mecha nism with small overhead, which may expose the raw capabilities of the underlying hardware. In addition, one of the most promising techniques, user-level communi- cation, is often used to improve the performance of the traditional protocols such as TCP and UDP, and is also adopted in implementing the novel abstractions like Active Messages. Thus a user-level Active Messages model is designed and imple- mented on Dawning-1000. Preliminary experiments show that the combination of Active Messages mechanism and user-level communication technique is quite efficient in reducing software overhead associated with sending and receiving messages and in exploiting the capabilities of the interconnection network.展开更多
On June 6, the Ministry of Industry and Information Technology issued basic telecommunications business l icenses to China Telecom, China Mobile, China Unicom and China Broadcasting Network.
In this paper, some parallel algorithms are described for solving numerical linear algebra problems on Dawning-1000. They include matrix multiplication, LU factorization of a dense matrix, Cholesky factorization of a ...In this paper, some parallel algorithms are described for solving numerical linear algebra problems on Dawning-1000. They include matrix multiplication, LU factorization of a dense matrix, Cholesky factorization of a symmetric matrix, and eigendecomposition of symmetric matrix for real and complex data types. These programs are constructed based on fast BLAS library of Dawning-1000 under NX environment.Some comparison results under different parallel environments and implementing methods are also given for Cholesky factorization. The execution time, measured performance and speedup for each problem on Dawning-1000 are shown. For matrix multiplication and LU factorization, 1.86GFLOPS and 1.53GFLOPS are reached.展开更多
PROOS is a distributed operating system running on the computing nodes of massively parallel processing computer Dawning-1000. It is an efficient and easily extendible micro kernel operating system. It supports the in...PROOS is a distributed operating system running on the computing nodes of massively parallel processing computer Dawning-1000. It is an efficient and easily extendible micro kernel operating system. It supports the intel NX message passing interface for communication.展开更多
基金the National Key R&D Program of China(Grant No.2022YFF0503702)the National Natural Science Foundation of China(Grant Nos.42004132,42074195 and 42074183)+1 种基金the open funding of the Ministry of Natural Resources Key Laboratory for Polar Science(Grant No.KP202104)the China Geological Survey(Grant No.ZD20220145).
文摘Utilizing observations by the Sounding of the Atmosphere using Broadband Emission Radiometry(SABER)instrument,we quantitatively assessed the dawn-dusk asymmetry in temperature disturbances within the high-latitude mesosphere and lower thermosphere(MLT)during the main phase of geomagnetic storms in this study.An analysis of five geomagnetic superstorm events indicated that during the main phase,negative temperature disturbances were more prevalent on the dawn side than on the dusk side in the high-latitude MLT region.Results of a statistical analysis of 54 geomagnetic storm events also revealed a notable disparity in temperature disturbances between the dawn and dusk sides.At high latitudes,38.2%of the observational points on the dawn side exhibited negative temperature disturbances(less than−5 K),whereas on the dusk side,this percentage was only 29.5%.In contrast,at mid-latitudes,these proportions were 34.1%and 36.5%,respectively,showing no significant difference.We also conducted a statistical analysis of temperature disturbances at different altitudes,which revealed an increase in the proportion of warming disturbances with altitude.Conversely,the proportion of cooling disturbances initially rose with altitude,reaching a peak around 105 km,and subsequently decreased.These temperature disturbance differences could be explained by the day-night asymmetry in vertical wind disturbances during storm conditions.
文摘In this paper the parallel computing of a grid-point nine-level atmospheric general circulation model on the Dawn 1000 is introduced. The model was developed by the Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS). The Dawn 1000 is a MIMD massive parallel computer made by National Research Center for Intelligent Computer (NCIC), CAS. A two-dimensional domain decomposition method is adopted to perform the parallel computing. The potential ways to increase the speed-up ratio and exploit more resources of future massively parallel supercomputation are also discussed.
文摘The purpose of this study was to investigate the involvement of growth hormone in the diurnal variation of insulin sensitivity in healthy adults. Afternoon (16:00 hr) or night (23:00 hr) pretreatment with a subcutaneous injection of normal saline, human growth hormone to mimic the normal nocturnal rise in growth hormone, or octreotide to inhibit endogenous growth hormone secretion to create a state of relative nocturnal growth hormone deficiency, was given 16 hours before undergoing the modified insulin suppression test in healthy subjects. The morning and evening experiments were separated by an interval of at least 3 days. Thus, each subject was tested on six separate occasions arranged in a random order. A higher value of the steady-state plasma glucose (SSPG) is indicative of lower insulin sensitivity. Plasma glucose, serum insulin, insulin-like growth factor-1, nonesterified fatty acids (NEFA), and metabolic clearance rate of insulin (MCRI) were measured. In the normal saline and human growth hormone groups, SSPG levels were lower in the morning than in the evening. Evening SSPG levels, MCRI, and NEFA concentrations were higher in the participants treated with normal saline and growth hormone than in the octreotide group. Differences in SSPG levels between the morning and evening values were higher in the participants pretreated with normal saline and growth hormone than in those treated with octreotide. A diurnal variation in insulin sensitivity existed in healthy subjects. These results provided direct evidence that the role of growth hormone in regulating insulin sensitivity might be related to changes in the MCRI and the metabolism of NEFA in healthy subjects.
文摘This year marks the 45th anniversary of Malaysia-China diplomatic relations. In the early 15th Century, Zheng He, a Ming Dynasty maritime explorer, made seven voyages to the Western Seas and passed through the Malacca Strait more than once, resulting in many tales of trade and cultural exchanges between the peoples of China and Malaysia. Over the past 40 years since the beginning of China’s reform and openingup, Chinese Malaysians have invested in businesses and made donations to schools in China, laying a solid foundation for the further development of Malaysia- China relations.
文摘The Dawn of Modem Medicine refers to an account of the Revival of the Science and Art of Medicine,which took place in Western Europe during the latter half of the 18^th century and the first part of the 19^th.
文摘IN just two years Malawi had turned into a full-blown dictatorship despite a democratic constitution. Malawi had also turned into an economic basket case without adequate forex and worse still had insulted its donors and investors, sending some back to their respective countries. All this happened under the rule of President Bingu wa Mutharika who passed away on April 5, 2012 at the age of 78.
文摘East China Normal University received a text message from a faculty member, which said. ＂Last month, you spent less on meals, Are you in financial difficulty？ If so, please contact me via phone, text message or e-mail.＂
文摘研究表明不仅糖尿病患者自身容易出现悲伤、焦虑、忧虑等负性情绪,糖尿病的发生对患者家庭成员也会造成隐性的负担,因此,糖尿病的发生常常被视为一个家庭事件。家庭、社会的支持及有效沟通对于糖尿病患者成功进行自我管理至关重要。因此,改善糖尿病患者及其亲人所获得的教育与支持,有利于患者进行有效的自我管理,本文从DAWN2(Diabetes Attitudes,Wishes and Needs2)的最新调查研究结果进行相关探讨,提出了设置糖尿病健康教育门诊、实施糖尿病自我管理教育授权、扩大健康教育支持团队源与加强团队协作护理等,针对糖尿病患者家庭-社会支持的有效措施。
文摘At about the same time in 1940s when Erwin Schrdinger published his famous little book What Is Life, which sparked the birth of molecular biology, the term epigenetics was coined by the English biologist Conrad Waddington. The concept of epi-inheritance can be traced back to French naturalist Jean-Baptiste Lamarck’s idea of "inheritance
文摘To determine the influence of pairing status on dawn singing behaviour in pied bush chats Saxicola caprata, we conducted mate removal experiments across eight territories. The experiment was divided into three stages： pre-removal （pairs were present on their respective territories）, removal （females were experimentally removed）, and returned （females were released into the focal pairs＇ territories）. Dawn bout length, song rate, song complexity, percentage performance time, song perch height, and distance of singing location to territory boundary were measured for each male during each experimental stage. We did not find an effect of mate removal on any dawn song characteristics of male pied bush chats suggesting that the presence or absence of a mate does not influence male dawn singing behaviour. Our findings further suggest that males use dawn chorus to mediate social relationships with neighbouring males to proclaim an established territory
基金National '863' Hi-Tech Programme National Natural Science Foundation of China
文摘On Dawning-1000, the two-dimension mesh interconnection network enables low-latency, high-bandwidth communication, however, these capabilities have not been realized because of the high processing overhead imposed by existing com- munication software. Active Messages provide an efficient communication mecha nism with small overhead, which may expose the raw capabilities of the underlying hardware. In addition, one of the most promising techniques, user-level communi- cation, is often used to improve the performance of the traditional protocols such as TCP and UDP, and is also adopted in implementing the novel abstractions like Active Messages. Thus a user-level Active Messages model is designed and imple- mented on Dawning-1000. Preliminary experiments show that the combination of Active Messages mechanism and user-level communication technique is quite efficient in reducing software overhead associated with sending and receiving messages and in exploiting the capabilities of the interconnection network.
文摘On June 6, the Ministry of Industry and Information Technology issued basic telecommunications business l icenses to China Telecom, China Mobile, China Unicom and China Broadcasting Network.
文摘In this paper, some parallel algorithms are described for solving numerical linear algebra problems on Dawning-1000. They include matrix multiplication, LU factorization of a dense matrix, Cholesky factorization of a symmetric matrix, and eigendecomposition of symmetric matrix for real and complex data types. These programs are constructed based on fast BLAS library of Dawning-1000 under NX environment.Some comparison results under different parallel environments and implementing methods are also given for Cholesky factorization. The execution time, measured performance and speedup for each problem on Dawning-1000 are shown. For matrix multiplication and LU factorization, 1.86GFLOPS and 1.53GFLOPS are reached.
文摘PROOS is a distributed operating system running on the computing nodes of massively parallel processing computer Dawning-1000. It is an efficient and easily extendible micro kernel operating system. It supports the intel NX message passing interface for communication.
