Researcher Oscar Xavier Guerrero Gutiérrez speaks out about the unstable conditions that Mexican scientists face — and what can be done to help.
So here’s the report we can make to Mr. Chesterton: for-profit scientific publishers arose to solve the problem of producing physical journals. The internet mostly solved that problem. Now the publishers are the problem. These days, Springer Nature, Elsevier, Wiley, and the like are basically giant operations that proofread, format, and store PDFs. That’s not nothing, but it’s pretty close to nothing.
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Since Mongo is schemaless, there is no need to specify schema, only collections must be created. Same for indexes - these are just classic (B-tree) indexes that work on any field type.
改革，体现在“多元共治”的司法智慧里——
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Stack allocation of constant-sized slices
blocking them from loading.。关于这个话题，WPS下载最新地址提供了深入分析