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sabato 9 gennaio 2016

# s-phys: creating gravitational fields ...

<< (..) device with which to create detectable gravitational fields >>

<< until now, a scientific advance like this was a dream of science fiction >>

http://www.sciencedaily.com/releases/2016/01/160108083918.htm

A. Fuzfa. General Relativity and Quantum Cosmology. How current loops and solenoids curve space-time. arXiv:1504.00333 [gr-qc]

http://arxiv.org/abs/1504.00333

venerdì 8 gennaio 2016

# s-age-brain: negative age stereotypes vs Alzheimer’s disease biomarkers

<< holding negative attitudes towards the elderly (ageism) is correlated with the later development of neurobiological changes, or biomarkers, linked to Alzheimer’s >>

<< scores on the Attitudes Toward Old People Scale (AOPS) questionnaire predicted later hippocampal atrophy, as measured with structural MRI (n=52), and with the levels of neurofibrillary tangles and amyloid plaques present in the brain post mortem (n=74) >>

<< the authors don’t discuss the possibility that both of these phenomena are caused by a third, confounding factor – a covariate that wasn’t controlled for >>

<< For example, socioeconomic status or income could explain these results >>

http://blogs.discovermagazine.com/neuroskeptic/2016/01/06/7291/

Levy BR, Ferrucci L, et al. (2015). A Culture-Brain Link: Negative Age Stereotypes Predict Alzheimer’s Disease Biomarkers. Psychology and Aging PMID: 26641877

http://www.ncbi.nlm.nih.gov/pubmed/26641877

mercoledì 6 gennaio 2016

# e-sec: please, what time is it (among other)?

<< By their very nature of being wearable, these devices [wristband and armband devices such as smartwatches and fitness trackers], however, provide a new pervasive attack surface threatening users privacy, among others >>

Tony Beltramelli, Sebastian Risi. Deep-Spying: Spying using Smartwatch and Deep Learning. (Submitted on 17 Dec 2015)

http://arxiv.org/abs/1512.05616

also:

David Glance,  New ways your smartwatch (and phone) may be spying on you. University Of Western Australia, The Conversation. January 6, 2016

http://m.phys.org/news/2016-01-ways-smartwatch-spying.html

# s-age: lifespan among offspring of older parents

<< offspring produced by older parents often do not live as long, but little is known about why that occurs >>

<< Individuals with longer telomeres or slower rates of telomere loss have been shown to have greater longevity in a wide range of species. There also is evidence the offspring of older parents have shorter telomeres >>

http://m.phys.org/news/2016-01-offspring-older-parents-longevity.html

Britt J. Heidinger, Katherine A. Herborn, et al. Parental age influences offspring telomere loss.  Functional Ecology (2015). DOI: 10.1111/1365-2435.12630

http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12630/abstract

# rmx-s-brain: entities who know how to manage noise

<< pale spear-nosed bats (Phyllostomus discolor) (..) adapts its echolocation calls to the surrounding noise level >>

http://m.phys.org/news/2016-01-echolocation-noise.html

Jinhong Luo, Holger R. Goerlitz  et al. Linking the sender to the receiver: vocal adjustments by bats to maintain signal detection in noise. Scientific Reports 5, Article number: 18556 (2015)
doi:10.1038/srep18556

http://www.nature.com/articles/srep18556

# rmx-s-gst: inside a chaotic, fuzzy 'active matter' ...

<< From flocking birds to swarming molecules, physicists are seeking to understand 'active matter'and looking for a fundamental theory of the living world >>

<< We're still kind of astonished at what can happen >>

Gabriel Popkin. The physics of life. Nature 529, 16–18 (07 January 2016) doi:10.1038/529016a

http://www.nature.com/news/the-physics-of-life-1.19105

# s-acad: after a 'chemical pope': where the devil insists ...

<< If science and religion are beginning to walk together, the devil remains in the politics >>

Daniel Sarewitz. Constructive engagement is the key to climate action. Nature 529, 6 (07 January 2016) doi:10.1038/529006a

http://www.nature.com/news/constructive-engagement-is-the-key-to-climate-action-1.19103?WT.mc_id=TWT_NatureNews