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sabato 20 maggio 2017

# s-gst: controlling light-harvesting in molecular ensembles

AA << propose that the trap is a Frenkel exciton state formed much below the main exciton band edge due to an environmentally induced heavy-tailed Lévy disorder. This points to disorder engineering as a new avenue in controlling light-harvesting in molecular ensembles >>

Merdasa A, Jiménez Á, et al. Single
Lévy states-disorder induced energy funnels in molecular aggregates. Nano Lett. 2014 Dec 10;14(12):6774-81. doi: 10.1021/nl5021188. Epub 2014 Nov 7. PubMed PMID:
25349900.

http://pubs.acs.org/doi/abs/10.1021/nl5021188

also

"Frenkel exciton state" in:

https://journals.aps.org/search/

https://arxiv.org/find/all/1/all:+AND+state+AND+Frenkel+exciton/0/1/0/all/0/1

venerdì 19 maggio 2017

# n-soc: prospettiche meta- geometriche meta- fusioni, by Cedric

<< quelli (i requisiti) sono solo la precondizione, il bello viene adesso >> Cedric Villani.

Stefano Montefiori. Francia, il  candidato matematico «Uniremo elite e popolo» Cedric  Villani  alle  politiche  con  «En  Marche»

http://www.corriere.it/esteri/17_maggio_18/candidato-matematico-il-bello-viene-adessouniremo-elite-popolo-f5398c92-3b3d-11e7-935a-b58ef33c02e7.shtml

FonT

questo post meriterebbe una rima (quasistocastica senz'altro [inkpi.blogspot.it]) ma sembrerebbe  sparare con tromboncino armato di katyusha contro una postazione di pazienti di Medici Senza Frontiere, percio' mi astengo ...

giovedì 18 maggio 2017

# s-gst: emerging mixed-dimensional weak heterostructures

<< The isolation of a growing number of two-dimensional (2D) materials has inspired worldwide efforts to integrate distinct 2D materials into van der Waals (vdW) heterostructures >>

<< the vdW heterostructure concept can be extended to include the integration of 2D materials with non-2D materials that adhere primarily through non-covalent interactions >>

Deep Jariwala, Tobin J. Marks & Mark C. Hersam.  Mixed-dimensional van der Waals heterostructures. Nature Materials 16, 170–181 (2017) doi:10.1038/nmat4703.

https://www.nature.com/nmat/journal/v16/n2/full/nmat4703.html

FonT

teoria dei sistemi prevede, senz'altro in prima approx, il trasferimento, l'esportazione di concetti e modelli tra differenti contesti, anche lontani tra loro ...

cfr:  Ludwig von Bertalanffy. General System Theory (1969). Teoria generale dei sistemi. Arnoldo Mondadori Editore SpA Milano (1983).

https://it.m.wikipedia.org/wiki/Ludwig_von_Bertalanffy

mercoledì 17 maggio 2017

# n-lang: this is not a question of grammatical punctiliousness; time as a container to be filled

<< Shortest versus smallest isn’t actually a question of grammatical punctiliousness. Different languages frame time differently. Swedish and English speakers, for example, tend to think of time in terms of distance—what a long day, we say. Time becomes an expanse one has to traverse. Spanish and Greek speakers, on the other hand, tend to think of time in terms of volume—what a full day, they exclaim. Time becomes a container to be filled >>

Kendra Pierre-Louis. The language you speak changes your perception of time. TIME  IS  RELATIVE. May 9, 2017.

http://www.popsci.com/language-time-perception

<< These results reveal the malleable nature of human time representation as part of a highly adaptive information processing system >>

Bylund  E , Athanasopoulos  P. The Whorfian Time Warp: Representing Duration Through  the Language Hourglass. J  Exp  Psychol  Gen. 2017  Apr  27.  doi:  10.1037/xge0000314.

https://www.ncbi.nlm.nih.gov/pubmed/28447839

martedì 16 maggio 2017

# s-chem: hydrogen bonding, the strength in the middle ...

<< Hydrogen bonds are much weaker than chemical bonds, but stronger than intermolecular van der Waals interactions >>

<< With this study, [AA] have opened up new ways to identify three-dimensional molecules such as nucleic acids or polymers via observation of hydrogen atoms >>

Hydrogen bonds directly detected for the first time. May 12, 2017

https://m.phys.org/news/2017-05-hydrogen-bonds.html

Shigeki Kawai, Tomohiko Nishiuchi, et al. Direct quantitative measurement of the C═O⋅⋅⋅H–C bond by atomic force microscopy. Science Advances. 12 May 2017:Vol. 3, no. 5, e1603258 DOI: 10.1126/sciadv.1603258

http://advances.sciencemag.org/content/3/5/e1603258

lunedì 15 maggio 2017

# s-brain: nonlinear (chaotic) approach to model psycho dynamics

<< it will be illustrated how some common factors of psychotherapeutic change and psychological hypotheses on motivation, emotion regulation, and information processing of the client's functioning can be integrated into a comprehensive nonlinear model of human change processes >>

Schiepek GK, Viol K, et al.  Psychotherapy Is Chaotic-(Not Only) in a Computational World. Front Psychol. 2017 Apr 24; 8: 379. doi: 10.3389/fpsyg.2017.00379.eCollection 2017.

http://journal.frontiersin.org/article/10.3389/fpsyg.2017.00379/full

domenica 14 maggio 2017

# s-astro: it is possible that FRBs are much more common than has been shown

<< The mysterious nature of FRBs (fast radio burst) has led to a host of theories regarding their nature, from supernova to intelligent alien communications >>

<< In any event, study of FRBs is likely to increase as the mystery deepens and new telescope technology emerges—some have even suggested that it is possible that FRBs are much more common than has been shown, and that once they are observed more regularly, researchers can focus on looking at patterns >>

Bob Yirka. Latest fast radio burst adds to mystery of their source. May 12, 2017

https://m.phys.org/news/2017-05-latest-fast-radio-mystery-source.html

E. Petroff, S. Burke-Spolaor, et al
A polarized fast radio burst at low Galactic latitude. arXiv:1705.02911. May 8, 2017

https://arxiv.org/abs/1705.02911