五年时间，入库企业研发投入总和增长了七成多（72.01%），增速是披露研发企业数量增幅（34.07%）的两倍以上，表明研发投入增长不只来自参与者增加，还包括企业个体研发力度大幅提升，以及资源向头部集中；企业研发投入平均值增幅达到28.21%，进一步印证了研发从“广度扩张”到“深度强化”的态势。
"The first time there's any type of struggle, the immediate thought is, 'well, I thought you were my soulmate. But maybe you're not, because soulmates aren't supposed to deal with things'," he says. "But if relationships are going to go long term, it's never just going to be a downhill run."
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Before agar, microbiologists had experimented with other foodstuffs as microbial media. They turned to substances rich in the starches, proteins, sugars, fats, and minerals that organisms need for growth, testing with broths, bread, potatoes, polenta, egg whites, coagulated blood serums, and gelatine. However, none worked particularly well: all were easily broken down by heat and microbial enzymes, and their surface, once colonized, became mushy and unsuitable for isolating microbes.