linkedin post 2021-06-03 04:39:16

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THE PHILOSOPHER’S DILEMMA. “Very often, when we make general statements, there is an explicit or contextual restriction. ‘All ravens are black’ is a generalization about ravens. When leaving a plane with my wife, she might ask, “Were you sure to take everything?” Clearly that refers to the possessions that I brought onto the plane (and perhaps such of hers as she took me to be responsible for). So a negative answer would not be implied by my not having taken the inflight magazine or the airsickness bag from the picket in front of my seat.” https://lnkd.in/d9K-JQv View in LinkedIn
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linkedin post 2021-06-03 04:36:10

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THE SAVING GRACE. “Finally, we have explicitly shown that the increase in black-hole entropy, which is a direct consequence of the (generalized) hoop conjecture, when combined with the Bekenstein entropy bound, ensures the validity of Bekenstein’s GSL in this historical gedanken experiment.” (GSL = the generalized second law of thermodynamics). https://lnkd.in/d3sfhP6 View in LinkedIn
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linkedin post 2021-06-05 04:50:51

linkedin post 2021-06-05 04:50:51

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CAUSE OF ZIG-ZAG. The unusual backbone is associated with guanosine residues which have an unusual conformation. NMR studies in solution have shown that purine residues can adopt the syn and anti conformations with equal ease. Another difference is found in the pucker of the sugar ring.” https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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linkedin post 2021-06-05 04:50:00

linkedin post 2021-06-05 04:50:00

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ZIG-ZAG ALTERNATION. “The left-handed helix has the phosphates arranged in a zig-zag array; hence the name Z-DNA. The same Z structure has been found in crystals of tetramers d(CpGpCpG) as well as in other hexamer crystals.” https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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linkedin post 2021-06-05 04:48:32

linkedin post 2021-06-05 04:48:32

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FRAGMENT FROM NATURE continues from last weekend and concludes this weekend on a paper from the early days of untangling the structure of DNA, by Professor Alexander Rich from MIT, featuring the unraveling of left handed DNA. The story is written in crystal clear language, with unyielding logic, an historical milestone. https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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linkedin post 2021-06-04 04:08:16

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REASON + INTUITION. “Dual Process Theories (DPT) of reasoning posit that judgments are mediated by both fast, automatic processes and more deliberate, analytic ones. There is much evidence to support the thesis that reasoning and decision-making are accomplished by recourse to two qualitatively different types of processes.” https://lnkd.in/d8gkPCQ View in LinkedIn
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