This paper analyzed characteristics of Pingliang City's continuous hot weather from late spring to early summer in 2009.The result showed that,when the daily maximum temperature in some parts of cities had run up ...This paper analyzed characteristics of Pingliang City's continuous hot weather from late spring to early summer in 2009.The result showed that,when the daily maximum temperature in some parts of cities had run up to 32℃ or above,the number of days reached the top in recent 40 years.The average temperature,average maximum temperature,surface maximum temperature and surface average temperature in most parts of the city broke history record.Based on the analysis of characteristics of the 500 hPa circulation,which resulted in durative high temperature weather,3 kinds of the high temperature circulation patterns were summarized.It was the continental warm high pressure that resulted in the durative high temperature weather in June,2009.Meanwhile,by using European numerical forecast product and MOS,the forecasting method of high temperature,from June to August,was set up.The method had been used in June,and its high-temperature forecasting accuracy in 24,48,72,96,120 hours had respectively amounted to 76.6%,69.5%,61.4%,58.1% and 51.9%.展开更多
By introducing stories of the garden owners' obsession to stones and their contributions to the stone culture of the garden, the long and continuous history and rich culture of Lingering Garden was highlighted. Th...By introducing stories of the garden owners' obsession to stones and their contributions to the stone culture of the garden, the long and continuous history and rich culture of Lingering Garden was highlighted. There are abundant and various stones in the garden, rich in texture, shape and color, while the multiple-layered and multiple-perspective appreciation of stones is an important part of its stones culture. Furthermore, unusual histories of these stones greatly enrich the cultural connotations of the garden.展开更多
The field investigation of the present situation of ancient and famous tress in Lingering Garden was conducted, the results showed that there were 18 trees, belonging to 13 species, 12 genera and 10 families. The tree...The field investigation of the present situation of ancient and famous tress in Lingering Garden was conducted, the results showed that there were 18 trees, belonging to 13 species, 12 genera and 10 families. The trees’ ages were between 100 years old and 330 years old; 14 trees (accounting for 77.78% of the total trees) required regular management, 2 trees (accounting for 11.11%) required bole antiseptic protection, 1 tree (accounting for 5.56% of the total plants) required protection for its trunk, and 1 tree (accounting for 5.56%) required bole antiseptic protection and rejuvenation. According to the survey results, the monitoring and early warning standard grades were divided, its reasons were analyzed, and finally, the relative protection and restoration countermeasures were put forward.展开更多
Coevolutionary arms races between brood parasites and hosts provide tractable systems for understanding antagonistic coevolution in nature;however,little is known about the fate of frontline antiparasite defenses when...Coevolutionary arms races between brood parasites and hosts provide tractable systems for understanding antagonistic coevolution in nature;however,little is known about the fate of frontline antiparasite defenses when the host“wins”the coevolutionary arms race.By recreating bygone species interactions,using artificial parasitism experiments,lingering defensive behaviors that evolved in the context of parasitism can be understood and may even be used to identify the unknown agent of parasitism past.Here we present the first study of this type by evaluating lingering“frontline”nest defenses that have evolved to prevent egg laying in a former brood parasite host.The Australian reed warbler Acrocephalus australis is currently not parasitized but is known to exhibit fine-tuned egg discrimination—a defensive behavior indicative of a past brood parasite–host arms race and common in closely related parasitized species.Here,using 3D-printed models of adult brood parasites,we examined whether the Australian reed warbler also exhibits frontline defenses to adult brood parasites,and whether we could use these defenses to identify the warbler’s“ghost of parasitism past.”Our findings provide evidence that the Australian reed warbler readily engages in frontline defenses that are considered adaptive specifically in the context of brood parasitism.However,individuals were unable to discriminate between adults of different brood parasite species at their nest.Overall,our results demonstrate that despite a relaxation in selection,defenses against brood parasitism can be maintained across multiple stages of the host’s nesting cycle,and further suggest that,in accordance with previous findings,that learning may be important for fine-tuning frontline defense.展开更多
Objective:To explore the feasibility of five tones combined with electro-acupuncture for drug rehabilitation.Methods:Search and screen the literature related to drug rehabilitation with musical electrico-acupuncture i...Objective:To explore the feasibility of five tones combined with electro-acupuncture for drug rehabilitation.Methods:Search and screen the literature related to drug rehabilitation with musical electrico-acupuncture in PubMed,CNKI,CQVIP and Wanfang data to May 2019,and summarize and analyze the literature.Results:Either music therapy or acupuncture therapy has therapeutic responses respectively,and the combined use of both is more effective than the single-use.Conclusion:The combination of five tones and acupuncture is highly feasible for drug rehabilitation.展开更多
基金Supported by Science and Research Program of Gansu Meteorology Bureau (2010-19)
文摘This paper analyzed characteristics of Pingliang City's continuous hot weather from late spring to early summer in 2009.The result showed that,when the daily maximum temperature in some parts of cities had run up to 32℃ or above,the number of days reached the top in recent 40 years.The average temperature,average maximum temperature,surface maximum temperature and surface average temperature in most parts of the city broke history record.Based on the analysis of characteristics of the 500 hPa circulation,which resulted in durative high temperature weather,3 kinds of the high temperature circulation patterns were summarized.It was the continental warm high pressure that resulted in the durative high temperature weather in June,2009.Meanwhile,by using European numerical forecast product and MOS,the forecasting method of high temperature,from June to August,was set up.The method had been used in June,and its high-temperature forecasting accuracy in 24,48,72,96,120 hours had respectively amounted to 76.6%,69.5%,61.4%,58.1% and 51.9%.
文摘By introducing stories of the garden owners' obsession to stones and their contributions to the stone culture of the garden, the long and continuous history and rich culture of Lingering Garden was highlighted. There are abundant and various stones in the garden, rich in texture, shape and color, while the multiple-layered and multiple-perspective appreciation of stones is an important part of its stones culture. Furthermore, unusual histories of these stones greatly enrich the cultural connotations of the garden.
文摘The field investigation of the present situation of ancient and famous tress in Lingering Garden was conducted, the results showed that there were 18 trees, belonging to 13 species, 12 genera and 10 families. The trees’ ages were between 100 years old and 330 years old; 14 trees (accounting for 77.78% of the total trees) required regular management, 2 trees (accounting for 11.11%) required bole antiseptic protection, 1 tree (accounting for 5.56% of the total plants) required protection for its trunk, and 1 tree (accounting for 5.56%) required bole antiseptic protection and rejuvenation. According to the survey results, the monitoring and early warning standard grades were divided, its reasons were analyzed, and finally, the relative protection and restoration countermeasures were put forward.
文摘Coevolutionary arms races between brood parasites and hosts provide tractable systems for understanding antagonistic coevolution in nature;however,little is known about the fate of frontline antiparasite defenses when the host“wins”the coevolutionary arms race.By recreating bygone species interactions,using artificial parasitism experiments,lingering defensive behaviors that evolved in the context of parasitism can be understood and may even be used to identify the unknown agent of parasitism past.Here we present the first study of this type by evaluating lingering“frontline”nest defenses that have evolved to prevent egg laying in a former brood parasite host.The Australian reed warbler Acrocephalus australis is currently not parasitized but is known to exhibit fine-tuned egg discrimination—a defensive behavior indicative of a past brood parasite–host arms race and common in closely related parasitized species.Here,using 3D-printed models of adult brood parasites,we examined whether the Australian reed warbler also exhibits frontline defenses to adult brood parasites,and whether we could use these defenses to identify the warbler’s“ghost of parasitism past.”Our findings provide evidence that the Australian reed warbler readily engages in frontline defenses that are considered adaptive specifically in the context of brood parasitism.However,individuals were unable to discriminate between adults of different brood parasite species at their nest.Overall,our results demonstrate that despite a relaxation in selection,defenses against brood parasitism can be maintained across multiple stages of the host’s nesting cycle,and further suggest that,in accordance with previous findings,that learning may be important for fine-tuning frontline defense.
基金This study is supported by Shandong University of Traditional Chinese Medicine Research and Training(SRT)Program(No.2019074).
文摘Objective:To explore the feasibility of five tones combined with electro-acupuncture for drug rehabilitation.Methods:Search and screen the literature related to drug rehabilitation with musical electrico-acupuncture in PubMed,CNKI,CQVIP and Wanfang data to May 2019,and summarize and analyze the literature.Results:Either music therapy or acupuncture therapy has therapeutic responses respectively,and the combined use of both is more effective than the single-use.Conclusion:The combination of five tones and acupuncture is highly feasible for drug rehabilitation.
