… In order to avoid the adverse reactions of DPP-4 inhibitors, new … ring 82 was obtained by
reacting compound 81 with oxalic acid in 4 mol/L HCl aqueous solution. Then, compound 82 …

… In this study, we present a tree-ring width chronology that was established using a group
of Chinese pine (Pinus tabulaeformis) and spans the past 194 years. The applicability of …

… warming in the twentieth century has become an indisputable fact and has been recorded by
a number of tree-ring … the reliability of the tree-ring chronology. Values exceeding 0.85 were …

… 地区自"<82 年以来处于升温期,年平均 温度从8$ ;8Z("<82 年)增… treering chronology and the
climate factors P6 H P12. PreO … tree rings at different slope asH pects to rapid warming in …

… 1 (a)Locations of volcanos, sampling site, meteorological station and hydrological stations
and (b) tree-ring width chronology of Picea brachytyla and the number of samples for each …

… Roman warm period. In order to better compare the characteristics and mechanisms of
temperature changes over the Northern Hemisphere in the natural warm periods and the warm …

… ring chronology is established using dozens of tree cores with missing rings and false rings
being corrected for each core … Effects of abrupt warming on main conifer tree rings in Markang…

… Abstract: Based on the tree⁃ring increment cores of Pinus tabuliformis … ⁃ring width chronology
was developed. The correlation coefficients were calculated between the chronology and …

… , warm and wet winter as well as warm growing season intensified the narrow ring formation
… 年表(standardize chronology),差值年 表(residual chronology)和自回归标准化年表(arstan …

… history of forest disturbances is of great significance for predicting forest dynamics under the
background of global warming… records and tree-ring width chronologies collected from living …