Christensen S & Christensen BT (1991) Organic matter available for denitrification in different soil fractions: Effect of freeze/thaw cycles and straw disposal. J Soil Sci 42:637-647 Google Scholar Christensen S & Teidje JM (1990) Brief and vigorous N2O production by soil at spring thaw. J...
The effect of wheat grain fractions and sucrose mixtures on rat caries developing in two strains of rats maintained on different regimes and evaluated by two different methods Archs oral Biol. (1965) R.J. Anderson Computer analysis of dental surveys Br. med. J. (1968) C.F. Ballard Morpholog...
In previous experiments we have observed that the incubation in vitro with GSSC; or ATI I can modify the electrophoretie pat- tern of RIK: acid phosphalases (SH-dcpcndcnt enzyme) and can reduce their total activity; we have also demonstrated that the isoen/.yme fractions present a ...
For the particulate fractions shown in Fig.7, there was significant hourly variation throughout the day. The variation was more pronounced for PM10than for PM2.5or PM1. In particular, the values of PM2.5and PM1were substantially stable at night, and their morning increase was reduced compared ...
To fractionate fine grains, 5 g was dispersed in NaOH and diluted to 1,000 mL with water, stirred, then sampled over time using a 25 mL pipette to obtain fractions at 63, 31, 16, 8, 4, 2 and 1 µm; excess liquid was evaporated, and grains were dried at 105°C ...
This showed CAR-T engraftment fractions of 5–52% and PR in 2/5 subjects with PSA declines of 50 and 70% and PSA delays of 78 and 150 days.57 Depletion of IL-2 by high engrafted activated T-cell fractions was speculated to have limited the responses. Building on a literature for ...
The lack of clear stratigraphic horizons that could be tied to historical events prior to 1855, combined with the lack of reliable organic fractions for radiocarbon dating in the pre-salt-marsh sediments, meant that it was only possible to generate an accurate chronology for the post-1855 ...
The MS/MS analysis was used to obtain the mass fractions of target ions. The extracts and standards were diluted in methanol to 1 mg/mL, respectively, and filtered through 0.45 µm membranes. Author Contributions: The list authors contributed to this work as follows: G.L. and W.-H.D....
正常情况下,体 内氧化剂的产生与 机体抗氧化能力处于平衡状态;血 管衰 老时,机体氧化系统和抗氧化系统失衡,从而导 致血管衰 老性改变 .[4] 许多抗氧化途径参与细胞氧 化还原 稳态,其中 Nrf2 抗氧化通路的作用是最突 出的. 1.1 Nrf2抗氧化通路的结构特征 Nrf2属于帽领(cap'n'collar,CNC)家族的碱性亮 氨酸...
(2) développer une compréhension de l'équivalence des fractions, de l'addition et de la soustraction de fractions à dénominateurs communs, et de la multiplication de fractions par un nombre entier; et (3) comprendre que les figures géométriques peuvent être analysées et classées...