The synthesis of several Δ 2 -isoxazolines and Δ 2 -pyrazolines catalyzed by activated barium hydroxide in a solid-liquid system is discussed. The process takes place with a selectivity of 100%. A mechanism is proposed for the process....
【2】句意:这家伙在我身后推我,坐了本应该是我的位子。 根据后文You should tell him that seat was yours.你应该告诉他那个座位是你的。所以此处应该是对方坐了我的位子,故选C。 【3】句意:我该怎么办? 根据后文You should tell him that seat was yours.你应该告诉他那个座位是你的。所以此处应该是我...
.- Tomorrow is my birthday.- ___.A.Oh,I have a good idea.B.I am glad you like it.C.Many happy returns of the day!D.You must be very happy
stabile weltwirtschaf stability analysis of stability degree inde stability information stability of aqueous stability of interest stability of slopes i stability-floodedcalc stability thermal sun stabilitycharacterist stabilitymeasurement stabilityofprice stabilization fund stabilized crude oil stabilizeddeflection...
Decomposition of soil organic matter (SOM) can be stimulated by fresh organic matter input, a phenomenon known as the ‘priming effect’. Despite its global importance, the relationship of the priming effect to mineral weathering and nutrient release rem
barium fluoride iodid barium malonate barium methylate barium oxide aqueous barium perchlorate barium radiography barium sulfate ultra barium titanate ceram barium undecenate bariumglass bariumpentachlorophen bariŞtim ben herŞeyim bark and no bite bark beater bark deduction bark paintings barker road ...
(Hamilton Company, Reno, NV, USA). Recovery standards were added prior to the first step in the extraction process for quality control purposes. Sample preparation was conducted using a proprietary series of organic and aqueous extractions to remove the protein fraction while allowing maximum ...
anthocyanin concentration in the skin was measured after methanol extraction (1 g berry skin powder in 10 ml methanol) according to the double pH differential method [65]. H2O2was measured using the Amplex UltraRed (Molecular Probes, USA) as described in [3] but using 10 μl of aqueous ...
Cells were analyzed for viability by CellTiter 96® aqueous non-radioactive cell proliferation assay (Promega, Madison, WI, USA) at different time points after transfection. The assay tests cellular viability and mitochondrial function. Briefly, after transfection, MTS solution was added to each ...
was refluxed for 3 h, then cooled to 23 °C and treated with saturated NaHCO3(aq) (15 mL) and sat. KF(aq) (1 mL). The organic layer was separated and the aqueous layer was extracted with CHCl3(2 × 10 mL). The combined organic extracts were dried over Na2SO4...