一、AP环境科学课程内容 Unit 1:The Living World: Ecosystems生命世界：生态系统 Unit 2: The Living World: Biodiversity生物世界：生物多样性 Unit 3: Populations人口 Unit 4: Earth Systems and Resources地球系统和资源 Unit 5: Land and Water Use土地和水的使用 Unit 6: Energy Resources and Consumption能...
Units of time:Whendayandmonthare used as a unit of measurement, they should be spelled out. The AMS allows for the abbreviationsdandmowhen they are used in a table or chart with restricted space. v. Liters:The International Committee on Weights and Measures has accepted the use of a roman...
Simon A. Schroeter ,Alice May Orme &Gerd Gleixner Article 16 January 2025|Open Access Reduced contribution of sulfur to the mass extinction associated with the Chicxulub impact event The amount of S released by the Chicxulub impact event is empirically determined to be 5 times lower than previo...
5. The right of online dissemination. 6. The right of distribution. This journal has been indexed by several authoritative databases at home and abroad, such as SCI (Web of Science), PubMed, Elsevier (ScienceDirect), Scopus, CA, BA, CSCD, Wanfang Database, Tongfang Database, etc. Unless...
Pesaran MH (2007) A simple panel unit root test in the presence of cross-section dependence. J Appl Economet 22(2):265–312. https://doi.org/10.1002/jae.951 Article Google Scholar Pesaran MH (2015) Testing weak cross-sectional dependence in large panels. Economet Rev 34:1089–1117. ...
As a result, the robustness check validates the outcomes of second-generation unit root tests. Table 4 Unit root test results Full size table The results in Table 5 present the outcomes of three separate models, one for each institutional quality proxy variable, IQI, PSI, and PEI. The ...
Fig. 5: Context-dependencies in the ER response to warming. a,b, TN concentration (%) (a) and C:N ratio (b) of the mineral soil layer affected the ER response to experimental warming. The environmental drivers on thexaxis reflect mean values of measured soil conditions at the control ...
3) engineering geological properties of tectonic mélange belts and related disaster effects, 4) surrounding rock stability and disaster effects of deep-buried tunnel under water-mechanical-thermal multi-field coupling condition, 5) mechanisms of high-position run-out landslide and risk control technology...
The CADF test show a mixed order of integrations as CO2PC, CO2HE, CO2FL, CO2IS, TINNOV, VOS, POS, ROQ, GOV, ROL, COC, GDPG, ENU, and TOP are stationary at level; however, FDV and FDI are stationary at first difference. Table 4 Unit root tests Full size table Table 5 shows ...
Specifically, the inverted U-shaped relationships between carbon (CO2) emissions and economic growth (EKC hypothesis) and between government spending and economic growth (Armey curve hypothesis) are analyzed using a composite EKC model tested for cross-sectional dependence and heterogeneity, panel unit ...