Translate
mercoledì 30 ottobre 2024
# life: ghostly psyche revisited; ghosts, zombies, gris-gris, and so on ...
venerdì 25 novembre 2022
# life; Qui una ipotesi sulla rete d'eventi d'ipotetica entità [AB] disconnessa da entità [CO] a suo tempo cooptata dalla stessa [AB].
venerdì 16 novembre 2018
# astro: a "zombie" star as a homing beacon to detect classes of black holes
<< The research explored whether a dormant white dwarf star-sometimes referred to as a "zombie" star-could reignite if it had a close encounter with an intermediate-mass black hole. >>
<< If the stars align, so to speak, a zombie star could serve as a homing beacon for a never-before-detected class of black holes. >>
<< The stretching phenomena can be very complicated (..) Imagine a spherical star approaching a black hole. As it approaches the black hole, tidal forces begin to compress the star in a direction perpendicular to the orbital plane, reigniting it. But within the orbital plane, these gravitational forces stretch the star and tear it apart. It's a competing effect. >> Rob Hoffman
<< It was exciting to see that the zombie star reignited in each of the close encounter scenarios we looked at, >> Peter Anninos
Nolan O'brien. 'Zombie' stars return from the dead. Lawrence Livermore National Laboratory. Oct 31, 2018.
https://m.phys.org/news/2018-10-zombie-stars-dead.html
Peter Anninos, P. Chris Fragile, et al. Relativistic Tidal Disruption and Nuclear Ignition of White Dwarf Stars by Intermediate-mass Black Holes. The Astrophysical Journal, Volume 865, Number 1. Sep 17, 2018. doi: 10.3847/1538-4357/aadad9.
http://iopscience.iop.org/article/10.3847/1538-4357/aadad9/meta
sabato 3 novembre 2018
# behav: to avoid zombification (among humble cockroaches)
<< The emerald jewel wasp (Ampulex compressa) is renowned for its ability to zombify the American cockroach (Periplaneta americana) with a sting to the brain. >>
<< many cockroaches deter wasps with a vigorous defense. Successful cockroaches elevated their bodies, bringing their neck out of reach, and kicked at the wasp with their spiny hind legs, often striking the wasp's head multiple times (..) >>
<< Thus, for a cockroach not to become a zombie, the best strategy is: be vigilant, protect your throat, and strike repeatedly at the head of the attacker. >>
Catania K.C. How Not to Be Turned into a Zombie. Brain Behav Evol. 1-15 Oct 31, 2018. doi: 10.1159/000490341
https://www.karger.com/Article/Abstract/490341
Karate kicks keep cockroaches from becoming zombies, wasp chow. Vanderbilt University. Oct 31, 2018.
https://m.phys.org/news/2018-10-karate-cockroaches-zombies-wasp-chow.html
Also
<< cockroaches aren’t a nuisance. They’re "gregarious insects" that can teach us about how groups approach collective decision-making. >>
Erin Blakemore. Cockroaches Have Personalities, Too. Smithsonian.com Feb 4, 2015.
https://www.smithsonianmag.com/smart-news/cockroaches-have-personalities-too-180954140
mercoledì 8 novembre 2017
# gst: more light on 'zombie' phenomena
<< Various parasite-host interactions that involve adaptive manipulation of host behavior display time-of-day synchronization of certain events. One example is the manipulated biting behavior observed in Carpenter ants infected with Ophiocordyceps unilateralis sensu lato >>
AA << hypothesized that biological clocks play an important role in this and other parasite-host interactions >>
Charissa de Bekker, Ian Will, et al. Daily rhythms and enrichment patterns in the transcriptome of the behavior-manipulating parasite Ophiocordyceps kimflemingiae. PLOS ONE 12(11): e0187170. doi: 10.1371/journal.pone.0187170. Nov 3, 2017
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0187170
Allison Hurtado, Rachel Williams. Biological Clock Found in Fungal Parasite Sheds More Light on ‘Zombie Ants’ Phenomenon. Nov 6, 2017.
http://today.ucf.edu/biological-clock-found-fungal-parasite-sheds-light-zombie-ants-phenomenon/
https://www.sciencedaily.com/releases/2017/11/171106145654.htm
lunedì 30 ottobre 2017
# age: senolytics, to stay young kill zombie cells
<< Killing off cells that refuse to die on their own has proved a powerful anti-ageing strategy in mice. Now it's about to be tested in humans >>
<< Surprisingly, senescent cells turn out to be slightly different in each tissue. They secrete different cytokines, express different extracellular proteins and use different tactics to avoid death. That incredible variety has made it a challenge for labs to detect and visualize senescent cells >> Judith Campisi.
<< In young mice, no more than 1% of cells in any given organ were senescent. In two-year-old mice, however, up to 20% of cells were senescent in some organs. But there's a silver lining to these elusive twilight cells: they might be hard to find, but they're easy to kill >> Valery Krizhanovsky.
<< I think senolytics are drugs that could come soon and be effective in the elderly now, even in the next few years >> Nir Barzilai.
To stay young, kill zombie cells. Nature 2017; 550: 448 – 50. doi:10.1038/550448a Oct 26, 2017
https://www.nature.com/news/to-stay-young-kill-zombie-cells-1.22872
giovedì 5 maggio 2016
# s-acad: apropos of zombie literature ...
<< Are these “zombie papers” (to repurpose a term coined by academic publishing watchdog Leonid Schneider) ... >>
<< In this way, zombie papers can spawn more zombie publications, and the damage can be amplified and spread in an infectious pattern. >>
Bob Grant. The Zombie Literature. May 1, 2016
http://mobile.the-scientist.com/article/45868/the-zombie-literature
domenica 29 novembre 2015
# rmx-s-phyt: how they turn into zombies
<< (..) on the molecular reasons for a bacterial (..) disease, explaining how (..) destroy the life cycle (..) and inflict a 'zombie' existence on them >>
http://www.sciencedaily.com/releases/2015/10/151016084858.htm
http://www.uni-jena.de/en/Research+News/PM151016_Zombies_en.html
Florian Rumpler, Lydia Gramzow, et al. Did convergent protein evolution enable phytoplasmas to generate ‘zombie plants’? Trends in Plant Science, October 2015 DOI: 10.1016/j.tplants.2015.08.004
http://www.cell.com/trends/plant-science/abstract/S1360-1385(15)00205-8