Many networks in the real world have spatial attributes, such as location of nodes and length of edges, called spatial networks. When these networks are subject to some random or deliberate attacks, some nodes in the ...Many networks in the real world have spatial attributes, such as location of nodes and length of edges, called spatial networks. When these networks are subject to some random or deliberate attacks, some nodes in the network fail, which causes a decline in the network performance. In order to make the network run normally, some of the failed nodes must be recovered. In the case of limited recovery resources, an effective key node identification method can find the key recovering node in the failed nodes, by which the network performance can be recovered most of the failed nodes. We propose two key recovering node identification methods for spatial networks, which are the Euclidean-distance recovery method and the route-length recovery method. Simulations on homogeneous and heterogeneous spatial networks show that the proposed methods can significantly recover the network performance.展开更多
Dear Editor,We reported a case of a multidisciplinary therapy for late recovered facial paralysis 2y after the initial diagnosis.Facial paralysis has an incidence of 20-30 people out of 100000 per year,and up to 1 in ...Dear Editor,We reported a case of a multidisciplinary therapy for late recovered facial paralysis 2y after the initial diagnosis.Facial paralysis has an incidence of 20-30 people out of 100000 per year,and up to 1 in 60 people will be affected during their life time[1].展开更多
The system translates the arm/boom/buck's potential energy into electrical energy and then the electrical energy is stored in a storage device.This study develops a set of energy management strategy to make the re...The system translates the arm/boom/buck's potential energy into electrical energy and then the electrical energy is stored in a storage device.This study develops a set of energy management strategy to make the recoverable energy recycling efficiently.This energy of traditional excavator is lost in the form of heat energy,which is wasteful,and makes the component's temperature higher and higher to reduce the machine's life.Research on this system not only conforms to the current topic of energy crisis,but also mates with the actual engineering,so it is significant to research that.展开更多
Recovery of Ni-Cd batteries was studied by a self-designed vacuum-aided recovering system under laboratory conditions. The fundamental research on a process of disassembling and recovering selected materials from Ni-C...Recovery of Ni-Cd batteries was studied by a self-designed vacuum-aided recovering system under laboratory conditions. The fundamental research on a process of disassembling and recovering selected materials from Ni-Cd batterieswas conducted. The impacts of temperature, pressure and time were studied respectively. The mechanism of vacuum thermal recovering was also discussed. The results show that: Ni-Cd batteries can be recovered effectively byvacuum-aided recovering system at 573~1173 K. At constant pressure, the increase of temperature can improve theseparating efficiency of cadmium. When the temperature is 1173 K, the cadmium can evaporate completely fromthe residue during 3 h at 10 Pa. The reduction of pressure in the certain range is effective to separate cadmium byvacuum distillation. Distillation time is a very important factor affecting separation of cadmium.展开更多
Objective:Studies have shown that docosahexaenoic acid(DHA)has a beneficial effect in the treatment of spinal cord injury.A meta-analysis was used to study the effect of DHA on the neurological recovery in the rat spi...Objective:Studies have shown that docosahexaenoic acid(DHA)has a beneficial effect in the treatment of spinal cord injury.A meta-analysis was used to study the effect of DHA on the neurological recovery in the rat spinal cord injury model,and the relationship between the recovery of motor function after spinal cord injury and the time and method of administration and the dose of DHA.Data source:Published studies on the effect of DHA on spinal cord injury animal models from seven databases were searched from their inception to January 2019,including PubMed,MEDLINE,EMBASE,the China National Knowledge Infrastructure,Wanfang,VIP,and SinoMed databases.The search terms included“spinal cord injury”“docosahexaenoic acid”,and“rats”.Data selection:Studies that evaluated the influence of DHA in rat models of spinal cord injury for locomotor functional recovery were included.The intervention group included any form of DHA treatment and the control group included treatment with normal saline,vehicle solution or no treatment.The Systematic Review Centre for Laboratory animal Experimentation’s risk of bias assessment tool was used for the quality assessment of the included studies.Literature inclusion,quality evaluation and data extraction were performed by two researchers.Meta-analysis was then conducted on all studies that met the inclusion criteria.Statistical analysis was performed on the data using RevMan 5.1.2.software.Outcome measures:The primary outcome measure was the score on the Basso,Beattie,and Bresnahan scale.Secondary outcome measures were the sloping plate test,balance beam test,stair test and grid exploration test.Results:A total of 12 related studies were included,3 of which were of higher quality and the remaining 9 were of lower quality.The highest mean Basso,Beattie,and Bresnahan scale score occurred at 42 days after DHA treatment in spinal cord injury rats.At 21 days after treatment,the mean difference in Basso,Beattie,Bresnahan scores between the DHA group and the control group was the most significant(pooled MD=4.14;95%CI=3.58–4.70;P<0.00001).In the subgroup analysis,improvement in the Basso,Beattie,and Bresnahan scale score was more significant in rats administered DHA intravenously(pooled MD=2.74;95%CI=1.41–4.07;P<0.0001)and subcutaneously(pooled MD=2.99;95%CI=2.29–3.69;P<0.00001)than in the groups administered DHA orally(pooled MD=3.04;95%CI=–1.01 to 7.09;P=0.14).Intravenous injection of DHA at 250 nmol/kg(pooled MD=2.94;95%CI=2.47–3.41;P<0.00001]and 1000 nmol/kg[pooled MD=3.60;95%CI=2.66–4.54;P<0.00001)significantly improved the Basso,Beattie,and Bresnahan scale score in rats and promoted the recovery of motor function.Conclusion:DHA can promote motor functional recovery after spinal cord injury in rats.The administration of DHA by intravenous or subcutaneous injection is more effective than oral administration of DHA.Intravenous injection of DHA at doses of 250 nmol/kg or 1000 nmol/kg is beneficial.Because of the small number and the low quality of the included studies,more high-quality research is needed in future to substantiate the results.展开更多
Pig farmers’willingness to recover production under the COVID-19 pandemic shock is significant to recover live pigs’supply in China in 2020.Increasing farmers’willingness to recover pig production contributes to en...Pig farmers’willingness to recover production under the COVID-19 pandemic shock is significant to recover live pigs’supply in China in 2020.Increasing farmers’willingness to recover pig production contributes to enhance pig supply,stabilize the pig and pork market,and to improve pig farmers’income.This research studies the determinants of pig farmers’willingness to recover production under COVID-19 pandemic shock by applying survey data of 201 farmers in Huai’an City and Lin’an City and a logit regression model.The estimation results show that a farmer’s risk perception,the duration time of a farmer’s feed supply under COVID-19 pandemic shock,whether or not being a cooperative member,and a farmer’s knowledge on government’s policy designed to encourage pig production,a farmer’s education level and production experience are the key determinants to a farmer’s willingness to recover pig production.Thus,it’s important for policymakers to solve the problems for farmers to get access to feed during the pandemic,to encourage the development of cooperatives,as well as to issue and advocate policies to encourage pig production.The study contributes to the scant literature by providing fresh empirical evidences on determinants of farmers’willingness to recover pig production.It has significance to farmers and governments to enhance farmers’willingness to recover production,which contributes to secure pig supply in China after the COVID-19 pandemic.展开更多
An mvestigation and analysis of 229 deal-mute children revealed that 54.2% of ac-quired deafness were mused by ototoxic aminoglycoside drugs.There is an upward trend of the oc-cunence of the disease in the recent yea...An mvestigation and analysis of 229 deal-mute children revealed that 54.2% of ac-quired deafness were mused by ototoxic aminoglycoside drugs.There is an upward trend of the oc-cunence of the disease in the recent years and more attention should be paid to it.The result ofpure tone audiometry showed that more than 90.4% of deaf-mute children had some residualhearing.Twenty-six deal-mute children whose average hearing thresholds of speech frequency werebetter them 90dB(HL)had serviceable speech for daily use 3 after 3 to 18 months’ speech Warn-ing,and 4 of them were transferred to ordinary primary schools.The authors are of the opinionthat the deaf-mute children should use heating-aids as early as possible so as to promote theirspeech.展开更多
在平时使用电脑的过程中,最让用户头痛的莫过于重要数据的丢失,"挽救"丢失的文件就变得很急迫.Iolo作为老牌工具软件开发商,出品的Search And Recover(以下简称SAR)是恢复软件中的精品.SAR的界面简洁(如图1),功能强大.支持从...在平时使用电脑的过程中,最让用户头痛的莫过于重要数据的丢失,"挽救"丢失的文件就变得很急迫.Iolo作为老牌工具软件开发商,出品的Search And Recover(以下简称SAR)是恢复软件中的精品.SAR的界面简洁(如图1),功能强大.支持从磁盘、移动存储器、MP3播放器、数字相机等介质恢复文件,提供恢复前预览,支持邮件恢复,映象磁盘等实用功能.SAR提供了向导模式和高级恢复模式,使用户轻松恢复丢失的文件.展开更多
Background: A large number of studies have addressed whiplash injury, and many meta-analyses have sought to highlight chronicity factors;the implicated processes, however, remain a matter of debate. The present study ...Background: A large number of studies have addressed whiplash injury, and many meta-analyses have sought to highlight chronicity factors;the implicated processes, however, remain a matter of debate. The present study used data from the ESPARR cohort (an on-going prospective study of a representative cohort of road accident victims in the Rh?ne administrative département of France). The objectives were to describe the consequences of whiplash injury and to determine prognostic factors for poor recovery and persistent pain at 1 year post-accident. Methods: The cohort included 255 “pure” whiplash victims, 173 of whom responded to the 1-year follow-up questionnaire. Correlations between explanatory variables and health and pain status were explored by modified Poisson regression to provide adjusted relative risk (RR) values. Results: Half of the victims had not fully recovered health status by 1 year. The main factor associated with non-recovery was pain (RR = 1.3;1.0-1.7). A birth in the family preceding the accident emerged as another factor (RR=1.5;1.2-1.9). Victims responsible for their accident were twice as likely to report being free of pain as those not responsible (RR = 0.5;0.3-0.8). No correlation emerged with accident-related characteristics or PTSD. Conclusions: The present results extend our understand- ing of whiplash injury. Residual pain is the fundamental factor causing whiplash victims to feel that they have not recovered good health. Our findings suggest this may be bound up with physical factors (gender susceptibility);external factors such as having to carry weights (such as a baby) and with perceiving oneself as a victim are not incompatible with this hypothesis.展开更多
China’s foreign trade from January to May According to Customs figures,China’s total import and export value from January to May reached 9.16trillion yuan,down 3.2%year on year(the same below).In terms of the U.S.do...China’s foreign trade from January to May According to Customs figures,China’s total import and export value from January to May reached 9.16trillion yuan,down 3.2%year on year(the same below).In terms of the U.S.dollar,the total import and export value for the first five months reached$1.14trillion,down 8.6%.In May alone,the total import and export value was$2.02 trillion,up 2.8%.Among which,展开更多
In 1993, the Shanghai Municipal Government put forward a plan to resume the financial function of the Shanghai Bund which was called "the Far-East Wall Street" in the past. It evoked repercussions all over t...In 1993, the Shanghai Municipal Government put forward a plan to resume the financial function of the Shanghai Bund which was called "the Far-East Wall Street" in the past. It evoked repercussions all over the international finance circles. Personnel from the Chinese and foreign financial institutions have come here to make investigation one after another. Those overseas investors formerly engaged in financial business in the Bund think展开更多
On August 25,1992,China suc-cessfully returned its 13th recover-able satellite from orbit after 16days’operation.The satellite is thefirst one of the second generation ofthe Chinese recoverable satellites.Itemployed ...On August 25,1992,China suc-cessfully returned its 13th recover-able satellite from orbit after 16days’operation.The satellite is thefirst one of the second generation ofthe Chinese recoverable satellites.Itemployed initially the newly devel-oped LEO control technology.Compared with former recoverablesatellites,its capability was im-proved a lot by using many newtechnologies on satellite structure,on-board detection equipment andsatellite control,etc..展开更多
基金Project supported by Zhejiang Provincial Natural Science Foundation of China (Grant No. LQ23F030012)the Fundamental Research Funds for the Provincial Universities of Zhejiang (Grant No. GK229909299001-018)。
文摘Many networks in the real world have spatial attributes, such as location of nodes and length of edges, called spatial networks. When these networks are subject to some random or deliberate attacks, some nodes in the network fail, which causes a decline in the network performance. In order to make the network run normally, some of the failed nodes must be recovered. In the case of limited recovery resources, an effective key node identification method can find the key recovering node in the failed nodes, by which the network performance can be recovered most of the failed nodes. We propose two key recovering node identification methods for spatial networks, which are the Euclidean-distance recovery method and the route-length recovery method. Simulations on homogeneous and heterogeneous spatial networks show that the proposed methods can significantly recover the network performance.
基金Supported by the National Natural Science Foundation of China (No.82000938,No.81900906,No.82000857)。
文摘Dear Editor,We reported a case of a multidisciplinary therapy for late recovered facial paralysis 2y after the initial diagnosis.Facial paralysis has an incidence of 20-30 people out of 100000 per year,and up to 1 in 60 people will be affected during their life time[1].
基金supported by Science and Technology Research and Development Plan Project of Handan City(22422401138ZC)2022 School Level Project in Handan University(XZ2022203)。
文摘The system translates the arm/boom/buck's potential energy into electrical energy and then the electrical energy is stored in a storage device.This study develops a set of energy management strategy to make the recoverable energy recycling efficiently.This energy of traditional excavator is lost in the form of heat energy,which is wasteful,and makes the component's temperature higher and higher to reduce the machine's life.Research on this system not only conforms to the current topic of energy crisis,but also mates with the actual engineering,so it is significant to research that.
文摘Recovery of Ni-Cd batteries was studied by a self-designed vacuum-aided recovering system under laboratory conditions. The fundamental research on a process of disassembling and recovering selected materials from Ni-Cd batterieswas conducted. The impacts of temperature, pressure and time were studied respectively. The mechanism of vacuum thermal recovering was also discussed. The results show that: Ni-Cd batteries can be recovered effectively byvacuum-aided recovering system at 573~1173 K. At constant pressure, the increase of temperature can improve theseparating efficiency of cadmium. When the temperature is 1173 K, the cadmium can evaporate completely fromthe residue during 3 h at 10 Pa. The reduction of pressure in the certain range is effective to separate cadmium byvacuum distillation. Distillation time is a very important factor affecting separation of cadmium.
基金supported by the National Natural Science Foundation of China,No.81704096,81603635,81873317(to MY,JY,XJC)Shanghai Science and Technology Commission-Key Project of Traditional Chinese Medicine,No.16401970100(to YJW)+4 种基金the Shanghai Traditional Chinese Medicine Medical Center of Chronic Disease of China,No.2017ZZ01010(to YJW)the National Thirteenth Five-Year Science and Technology Major Special Project for New Drug Innovation and Development of China,No.2017ZX09304001(to YJW)the Program for Innovative Research Team of Ministry of Science and Technology of China,No.2015RA4002(to YJW)the “Innovation Team” Development Projects of China,No.IRT1270(to YJW)the Three Years Action to Accelerate the Development of Traditional Chinese Medicine Plan of China,No.ZY(2018-2020)-CCCX-3003(to YJW)
文摘Objective:Studies have shown that docosahexaenoic acid(DHA)has a beneficial effect in the treatment of spinal cord injury.A meta-analysis was used to study the effect of DHA on the neurological recovery in the rat spinal cord injury model,and the relationship between the recovery of motor function after spinal cord injury and the time and method of administration and the dose of DHA.Data source:Published studies on the effect of DHA on spinal cord injury animal models from seven databases were searched from their inception to January 2019,including PubMed,MEDLINE,EMBASE,the China National Knowledge Infrastructure,Wanfang,VIP,and SinoMed databases.The search terms included“spinal cord injury”“docosahexaenoic acid”,and“rats”.Data selection:Studies that evaluated the influence of DHA in rat models of spinal cord injury for locomotor functional recovery were included.The intervention group included any form of DHA treatment and the control group included treatment with normal saline,vehicle solution or no treatment.The Systematic Review Centre for Laboratory animal Experimentation’s risk of bias assessment tool was used for the quality assessment of the included studies.Literature inclusion,quality evaluation and data extraction were performed by two researchers.Meta-analysis was then conducted on all studies that met the inclusion criteria.Statistical analysis was performed on the data using RevMan 5.1.2.software.Outcome measures:The primary outcome measure was the score on the Basso,Beattie,and Bresnahan scale.Secondary outcome measures were the sloping plate test,balance beam test,stair test and grid exploration test.Results:A total of 12 related studies were included,3 of which were of higher quality and the remaining 9 were of lower quality.The highest mean Basso,Beattie,and Bresnahan scale score occurred at 42 days after DHA treatment in spinal cord injury rats.At 21 days after treatment,the mean difference in Basso,Beattie,Bresnahan scores between the DHA group and the control group was the most significant(pooled MD=4.14;95%CI=3.58–4.70;P<0.00001).In the subgroup analysis,improvement in the Basso,Beattie,and Bresnahan scale score was more significant in rats administered DHA intravenously(pooled MD=2.74;95%CI=1.41–4.07;P<0.0001)and subcutaneously(pooled MD=2.99;95%CI=2.29–3.69;P<0.00001)than in the groups administered DHA orally(pooled MD=3.04;95%CI=–1.01 to 7.09;P=0.14).Intravenous injection of DHA at 250 nmol/kg(pooled MD=2.94;95%CI=2.47–3.41;P<0.00001]and 1000 nmol/kg[pooled MD=3.60;95%CI=2.66–4.54;P<0.00001)significantly improved the Basso,Beattie,and Bresnahan scale score in rats and promoted the recovery of motor function.Conclusion:DHA can promote motor functional recovery after spinal cord injury in rats.The administration of DHA by intravenous or subcutaneous injection is more effective than oral administration of DHA.Intravenous injection of DHA at doses of 250 nmol/kg or 1000 nmol/kg is beneficial.Because of the small number and the low quality of the included studies,more high-quality research is needed in future to substantiate the results.
基金This study was funded by the National Natural Science Foundation of China(71403243)ZJU-IFPRI International Development Joint Research Center Project(126000-541902).
文摘Pig farmers’willingness to recover production under the COVID-19 pandemic shock is significant to recover live pigs’supply in China in 2020.Increasing farmers’willingness to recover pig production contributes to enhance pig supply,stabilize the pig and pork market,and to improve pig farmers’income.This research studies the determinants of pig farmers’willingness to recover production under COVID-19 pandemic shock by applying survey data of 201 farmers in Huai’an City and Lin’an City and a logit regression model.The estimation results show that a farmer’s risk perception,the duration time of a farmer’s feed supply under COVID-19 pandemic shock,whether or not being a cooperative member,and a farmer’s knowledge on government’s policy designed to encourage pig production,a farmer’s education level and production experience are the key determinants to a farmer’s willingness to recover pig production.Thus,it’s important for policymakers to solve the problems for farmers to get access to feed during the pandemic,to encourage the development of cooperatives,as well as to issue and advocate policies to encourage pig production.The study contributes to the scant literature by providing fresh empirical evidences on determinants of farmers’willingness to recover pig production.It has significance to farmers and governments to enhance farmers’willingness to recover production,which contributes to secure pig supply in China after the COVID-19 pandemic.
文摘An mvestigation and analysis of 229 deal-mute children revealed that 54.2% of ac-quired deafness were mused by ototoxic aminoglycoside drugs.There is an upward trend of the oc-cunence of the disease in the recent years and more attention should be paid to it.The result ofpure tone audiometry showed that more than 90.4% of deaf-mute children had some residualhearing.Twenty-six deal-mute children whose average hearing thresholds of speech frequency werebetter them 90dB(HL)had serviceable speech for daily use 3 after 3 to 18 months’ speech Warn-ing,and 4 of them were transferred to ordinary primary schools.The authors are of the opinionthat the deaf-mute children should use heating-aids as early as possible so as to promote theirspeech.
文摘在平时使用电脑的过程中,最让用户头痛的莫过于重要数据的丢失,"挽救"丢失的文件就变得很急迫.Iolo作为老牌工具软件开发商,出品的Search And Recover(以下简称SAR)是恢复软件中的精品.SAR的界面简洁(如图1),功能强大.支持从磁盘、移动存储器、MP3播放器、数字相机等介质恢复文件,提供恢复前预览,支持邮件恢复,映象磁盘等实用功能.SAR提供了向导模式和高级恢复模式,使用户轻松恢复丢失的文件.
文摘Background: A large number of studies have addressed whiplash injury, and many meta-analyses have sought to highlight chronicity factors;the implicated processes, however, remain a matter of debate. The present study used data from the ESPARR cohort (an on-going prospective study of a representative cohort of road accident victims in the Rh?ne administrative département of France). The objectives were to describe the consequences of whiplash injury and to determine prognostic factors for poor recovery and persistent pain at 1 year post-accident. Methods: The cohort included 255 “pure” whiplash victims, 173 of whom responded to the 1-year follow-up questionnaire. Correlations between explanatory variables and health and pain status were explored by modified Poisson regression to provide adjusted relative risk (RR) values. Results: Half of the victims had not fully recovered health status by 1 year. The main factor associated with non-recovery was pain (RR = 1.3;1.0-1.7). A birth in the family preceding the accident emerged as another factor (RR=1.5;1.2-1.9). Victims responsible for their accident were twice as likely to report being free of pain as those not responsible (RR = 0.5;0.3-0.8). No correlation emerged with accident-related characteristics or PTSD. Conclusions: The present results extend our understand- ing of whiplash injury. Residual pain is the fundamental factor causing whiplash victims to feel that they have not recovered good health. Our findings suggest this may be bound up with physical factors (gender susceptibility);external factors such as having to carry weights (such as a baby) and with perceiving oneself as a victim are not incompatible with this hypothesis.
文摘China’s foreign trade from January to May According to Customs figures,China’s total import and export value from January to May reached 9.16trillion yuan,down 3.2%year on year(the same below).In terms of the U.S.dollar,the total import and export value for the first five months reached$1.14trillion,down 8.6%.In May alone,the total import and export value was$2.02 trillion,up 2.8%.Among which,
文摘In 1993, the Shanghai Municipal Government put forward a plan to resume the financial function of the Shanghai Bund which was called "the Far-East Wall Street" in the past. It evoked repercussions all over the international finance circles. Personnel from the Chinese and foreign financial institutions have come here to make investigation one after another. Those overseas investors formerly engaged in financial business in the Bund think
文摘On August 25,1992,China suc-cessfully returned its 13th recover-able satellite from orbit after 16days’operation.The satellite is thefirst one of the second generation ofthe Chinese recoverable satellites.Itemployed initially the newly devel-oped LEO control technology.Compared with former recoverablesatellites,its capability was im-proved a lot by using many newtechnologies on satellite structure,on-board detection equipment andsatellite control,etc..