This paper analyzes the role that Caleb Cushing played in the Sino-American relationship as well as his influences upon the Sino-American relationship.
With the development of economic globalization,the economic cooperation between different countries is keeping intight touch.As the second largest economy in the world,China is strengthening economic cooperation with ...With the development of economic globalization,the economic cooperation between different countries is keeping intight touch.As the second largest economy in the world,China is strengthening economic cooperation with America.It is inevitablethat intercultural communication is becoming high frequent.So it is important to overcome cultural conflicts and enhance the mutu-al understand.展开更多
Skeletochronology is a method commonly used for estimating the age of amphibians and reptiles in the wild. However, the number of lines of arrested growth （LAGs） does not necessarily reflect age in some species. We ...Skeletochronology is a method commonly used for estimating the age of amphibians and reptiles in the wild. However, the number of lines of arrested growth （LAGs） does not necessarily reflect age in some species. We validated the applicability of this method to an endangered eublepharid gecko, Goniurosaurus kuroiwae, then inferred its longevity and age structures in wild populations. We classified young geckos into three groups using previously published data for early growth： Group 1 contained hatchlings before the first winter, Group 2 contained hatchlings after the first win- ter, and Group 3 included yearlings after the second winter. LAG numbers in these groups were then compared. All individuals in Group 1 possessed a single LAG, which was considered as a hatching line. Most individuals in Groups 2 and 3 possessed one and two additional LAGs, respectively （LAG1 and LAG2）, corroborating the notion that LAGs are formed annually. A few geckos exhibited fewer LAGs than expected. Analysis of variations in LAG and marrow cavity diameter demonstrated that in animals with fewer LAGs, endosteal resorption or fusion of hatching line and LAG1 had occurred. LAG2 was never lost by endosteal resorption and was identifiable by its diameter. Thus, the age of adult geckos could be determined by counting LAGs outward from LAG2. Application of this method to wild populations re- vealed that the longevity of this species is not less than 83 months, but that almost all individuals in fragmented habitats die before 50 months, suggesting lower population sustainability in such habitats.展开更多
The possibility of a Saudi rapprochement with Israel has been continuously influenced by the the domestic barriers within the Saudi community and the Saudi historical narratives on the regional security perceptions of...The possibility of a Saudi rapprochement with Israel has been continuously influenced by the the domestic barriers within the Saudi community and the Saudi historical narratives on the regional security perceptions of the Saudi decision-makers.After the appointment of Prince Mohammed bin Salman as the Minister of Defense in 2015,King Salman’s government adopted a new discourse in domestic and foreign policy built upon a redefined Saudi identity rhetorically distanced from its Islamic neighbours and moved towards a nationalised tone.The unstable nature of the regional security dynamics forces the kingdom to actively reconstruct new security routines based on the emerging regional security dynamics and repositions the alliances.At this juncture,this research aims at understanding the rationality of the rise and fall of the intensity of Saudi foreign policy towards a normalisation process with Israel within the borders of the redefined Saudi national identity and regional threat perceptions.展开更多
U.S. President Barack Obama’s election and his strategy present opportunities for the United States tobuild a better relationship with China but bothsides have work to
文摘This paper analyzes the role that Caleb Cushing played in the Sino-American relationship as well as his influences upon the Sino-American relationship.
文摘With the development of economic globalization,the economic cooperation between different countries is keeping intight touch.As the second largest economy in the world,China is strengthening economic cooperation with America.It is inevitablethat intercultural communication is becoming high frequent.So it is important to overcome cultural conflicts and enhance the mutu-al understand.
基金supported by the Zoshinkai Fund for Protection of Endangered Animals and the Grant from the Japan Society for the Promotion of Science (JSPS KAKENHI Grant number 22510244)
文摘Skeletochronology is a method commonly used for estimating the age of amphibians and reptiles in the wild. However, the number of lines of arrested growth （LAGs） does not necessarily reflect age in some species. We validated the applicability of this method to an endangered eublepharid gecko, Goniurosaurus kuroiwae, then inferred its longevity and age structures in wild populations. We classified young geckos into three groups using previously published data for early growth： Group 1 contained hatchlings before the first winter, Group 2 contained hatchlings after the first win- ter, and Group 3 included yearlings after the second winter. LAG numbers in these groups were then compared. All individuals in Group 1 possessed a single LAG, which was considered as a hatching line. Most individuals in Groups 2 and 3 possessed one and two additional LAGs, respectively （LAG1 and LAG2）, corroborating the notion that LAGs are formed annually. A few geckos exhibited fewer LAGs than expected. Analysis of variations in LAG and marrow cavity diameter demonstrated that in animals with fewer LAGs, endosteal resorption or fusion of hatching line and LAG1 had occurred. LAG2 was never lost by endosteal resorption and was identifiable by its diameter. Thus, the age of adult geckos could be determined by counting LAGs outward from LAG2. Application of this method to wild populations re- vealed that the longevity of this species is not less than 83 months, but that almost all individuals in fragmented habitats die before 50 months, suggesting lower population sustainability in such habitats.
文摘The possibility of a Saudi rapprochement with Israel has been continuously influenced by the the domestic barriers within the Saudi community and the Saudi historical narratives on the regional security perceptions of the Saudi decision-makers.After the appointment of Prince Mohammed bin Salman as the Minister of Defense in 2015,King Salman’s government adopted a new discourse in domestic and foreign policy built upon a redefined Saudi identity rhetorically distanced from its Islamic neighbours and moved towards a nationalised tone.The unstable nature of the regional security dynamics forces the kingdom to actively reconstruct new security routines based on the emerging regional security dynamics and repositions the alliances.At this juncture,this research aims at understanding the rationality of the rise and fall of the intensity of Saudi foreign policy towards a normalisation process with Israel within the borders of the redefined Saudi national identity and regional threat perceptions.
文摘U.S. President Barack Obama’s election and his strategy present opportunities for the United States tobuild a better relationship with China but bothsides have work to
