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pro vyhledávání: '"398"'
Autor:
H. Criss Hartzell
Publikováno v:
Science. 228:866-867
Autor:
Rolf B. Johannesen
Publikováno v:
Science. 129:635-636
Publikováno v:
Science. 372:398-403
Adding methyl groups with good timing In pharmaceutical research, swapping out hydrogens for methyl groups is a frequent strategy to optimize small-molecule properties. Vasilopoulos et al. report a versatile, convenient, and comparatively safe method
Publikováno v:
Science. 360:398-403
Recycle, recycle, recycle Some polymers, such as polyethylene terephthalate in soft drink bottles, can be depolymerized back to the starting monomers. This makes it possible to repolymerize true virgin material for repeated use. Zhu et al. developed
Autor:
Jake Yeston
Publikováno v:
Science. 372:356.6-357
Organic Chemistry In pharmaceutical research, swapping out hydrogens for methyl groups is a frequent strategy to optimize small-molecule properties. Vasilopoulos et al. report a versatile, convenient, and comparatively safe method for methylation of
Publikováno v:
ResearcherID
Optical spectroscopy of conjugated molecules is described by using collective electronic coordinates, which represent the joint dynamics of electron-hole pairs. The approach relates the optical signals directly to the dynamics of charges and bond ord
Autor:
Pamela J. Hines
Publikováno v:
Science. 332:1011-1011
Cell Biology![Figure][1] CREDIT: JANICE HANEY CARR/CDC The genetic mutation that causes sickle cell anemia is a double-edged sword. Individuals who carry one copy of the mutant hemoglobin allele do not develop sickle cell disease but can show greater
Autor:
H. Jesse Smith
Publikováno v:
Science. 287:193-193
OCEANOGRAPHY The carbonate ion content of seawater influences many important properties of the atmosphere and ocean, such as the atmospheric concentration of CO2 and the preservation of calcium carbonate shells on the sea floor. Broecker et al. have
Autor:
Haritz Sardon, Andrew P. Dove
Publikováno v:
Science
Since the synthesis of the first synthetic polymer in 1907, the low cost, durability, safeness, and processability of polymers have led to ever-expanding uses throughout the global economy. Polymers, commonly called plastics, have become so widely us