根据第三段最后一句“The fluoride mixes with enamel (釉质),the hard surface on teeth,to help prevent holes from forming.〞可知答案是C。答案: C相关推荐 1According to the passage,what is the function of fluoride? A. Makingthe surfaceon teeth much cleaner. B. Protecting gums from being ...
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The European Society of Endocrinology (ESE), representing 20,000 endocrinologists, is concerned about the effect of endocrine disrupting chemicals (EDCs) on endocrine health, particularly thyroid and gonadal function. The policy strategies of the ESE aim to minimize overall exposure of humans to EDCs...
Zn2+ and Cu2+ ions, on the other hand, decreased the activity of all the enzymes, and drastic inhibition of the activity was seen with phenylmethane sulfonyl fluoride (PMSF) (Table 3). Table 3. Effect of different additives including metal ions, EDTA and phenylmethane sulfonyl fluoride (...
The Full Factorial Design is a simple systematic design style that allows for the estimation of main effects and interactions, and the main idea of RSM is to use a sequence of designed experiments to obtain an optimal response. Doehlert design was chosen in this study due to its many ...
Fig. 3: Zosurabalpin kills cells by inhibiting LptB2FGC function. a, Schematic of the trans-envelope lipopolysaccharide transporter. The inner-membrane complex LptB2FGC is an ATP-binding cassette that uses ATP hydrolysis to extract LPS from the inner membrane and transport it to the cell surfac...
Western blot Total protein in liver tissue was extracted with RIPA lysis buffer (1 × PBS, 1% Nonidet P-40, 0.5% sodium deoxy- cholate, 0.1% SDS, 1 mM phenyl methyl sulfonyl fluoride and protease inhibitors). Equal protein (80 μg) was ana- lyzed by SDS-PAGE electrophoresis,...
The main function of cyclinD1 is to promote cell proliferation. CyclinD1 is the key protein regulating the G1 phase of the cell cycle. Many studies have shown that cyclinD1 is excessively expressed in a wide variety of tumor cells and leads to out-of-control and vicious cell proliferation...
At present it is unclear if this is a late stage, more reduced, evolution of the main ore fluid, or a separate mineralising event entirely. The presence of this F–Ba-metal-rich fluid has produced a distinctive style of IOCG mineralisation in the area to the north of Cloncurry. The ...