ETIMOLOGIA DELLA PAROLA VIRUS
From Latin: slime, poisonous liquid; related to Old English wāse marsh, Greek ios poison.
CHE SIGNIFICA VIRUS IN INGLESE
Virus
Un virus è un piccolo agente infettivo che replica solo all'interno delle cellule viventi di altri organismi. I virus possono infettare tutti i tipi di forme di vita, dagli animali e dalle piante ai batteri e agli archea. Dato che l'articolo 1892 di Dmitri Ivanovsky descrive un infezione da patogeno non batterico e che la scoperta del virus di mosaico di tabacco da parte di Martinus Beijerinck nel 1898, sono stati descritti in dettaglio circa 5.000 virus, anche se esistono milioni di diversi tipi. I virus si trovano in quasi tutti gli ecosistemi della Terra e sono il tipo più abbondante di entità biologica. Lo studio dei virus è noto come virologia, una sotto-specialità di microbiologia. Le particelle di virus (note come virioni) sono costituite da due o tre parti: i) il materiale genetico fatto da DNA o RNA, molecole lunghe che trasportano informazioni genetiche; Ii) un mantello proteico che protegge questi geni; E in alcuni casi iii) una busta di lipidi che circonda il mantello proteico quando sono fuori da una cellula. Le forme di virus variano da semplici forme elicoidali e icosaedriche a strutture più complesse. Il virus medio è circa un centesimo della dimensione del batterio medio.
definizione di virus nel dizionario inglese
La prima definizione di virus nel dizionario è un gruppo di entità submicroscopiche costituite da una singola catena di acidi nucleici circondata da un rivestimento proteico e in grado di replicarsi solo all'interno delle cellule degli organismi viventi: molte sono patogene. L'altra definizione di virus è una malattia causata da un virus. Il virus è anche un'influenza corruttrice o infettante.
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10 CITAZIONI IN INGLESE CON «VIRUS»
Citazioni e frasi famose con la parola
virus.
Dance music is like a virus: it has affected so many different genres.
The virus that causes AIDS is the trickiest pathogen scientists have ever confronted. It mutates furiously, it has decoys to evade the immune system, it attacks the very cells that are trying to fight it, and it quickly hides itself in your genome.
Natural selection shaped the human brain to be drawn toward aspects of nature that enhance our survival and reproduction, like verdant landscapes and docile creatures. There is no payoff to getting the warm fuzzies in the presence of rats, snakes, mosquitoes, cockroaches, herpes simplex and the rabies virus.
With the absence of a flu vaccination last year, I did not take a flu shot; but there is still some immunity that carries over from year to year; but about every 30 years, there is a major change in the genetics of the flu virus.
Changes... can only be effected by alterations in the original. The only thing not prerecorded in a prerecorded universe are the prerecordings themselves. The copies can only repeat themselves word for word. A virus is a copy. You can pretty it up, cut it up, scramble it - it will reassemble in the same form.
The unique nature about the influenza virus is its great potential for changes, for mutation.
A virus is not just DNA; a virus is also packaged up, covered over with a series of proteins in a nice, elegant, well-compacted form.
If an employee told you he had the flu, you'd send him home. If an employee told you he was feeling anxious, you'd probably tell him to get back to work. But the emotion is just as contagious as a flu virus.
It turns out that viruses evolve from each other, like everything else. So if you look at the evolutionary tree of viruses, you can find parts of their genome that haven't changed over evolutionary time. You can recognize what may be a new virus by identifying this little piece of their genome that hasn't changed and is represented on the chip.
I'm actually pretty scientifically interested. I have a lot of friends who are doctors, so the idea of the virus and the synapses in the brain and how the nervous system works was actually all pretty familiar to me.
10 LIBRI IN INGLESE ASSOCIATI CON «VIRUS»
Scopri l'uso di
virus nella seguente selezione bibliografica. Libri associati con
virus e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
The Panic
Virus: The True Story Behind the Vaccine-Autism ...
A searing account of how vaccine opponents have used the media to spread their message of panic, despite no scientific evidence to support them.
2
Virus of the Mind: The New Science of the Meme
In Virus of the Mind, Richard Brodie carefully builds on the work of scientists Richard Dawkins, Douglas Hofstadter, Daniel Dennett, and others who have become fascinated with memes and their potential impact on our lives.
Doctors investigating the outbreak of an unknown disorder discover a connection between the deadly epidemic and computers
4
Virus Taxonomy: Classification and Nomenclature of Viruses : ...
Representing the work of more than 500 virologists worldwide, this report is the authoritative reference for virus organization, distinction, and structure.
Andrew M.Q. King, Michael J. Adams, Elliot J. Lefkowitz,
2012
5
Inventing the AIDS
Virus
Investigates the political and financial forces that have shaped AIDS research, including the growing dissension within scientific ranks, the power politics among virologists, and other controversial issues
In Virus, every aspect of Penna's life is controlled for her: a computer programme tells her when to get up, eat, sleep.
When a deadly superflu is unleashed on the world, scientist James Logan must confront a desperate terrorist, armed government agents, and Virus Thirteen to save his wife and the world.
8
West Nile
Virus: Overview and Abstracts
Carefully selected abstracts of virus-related literature follow as do accessible author, title, and subject indexes. For the study of the West Nile Virus, this book is a valuable resource.
9
Virus Taxonomy: VIIIth Report of the International Committee ...
This is the standard and definitive reference for virus taxonomy, generated by the ICTV approximately every 3 years.
Claude M. Fauquet, M.A. Mayo, J. Maniloff,
2005
Including the technical description of four basic virus types found on IBM PCs and compatibles, along with programs to detect these viruses and programs to remove them, this book enables readers to learn how to protect a computer system ...
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «VIRUS»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
virus nel contesto delle seguenti notizie.
#theBrief: Why Isn't There a Vaccine for the MERS Virus?
MERS is a virus similar to SARS, and easily confused with the flu or common cold. It's also highly contagious.The disease was first identified in Saudi Arabia in ... «TIME, giu 15»
'Shopping' for hospitals may have spread deadly MERS virus
The deadly MERS virus found ideal conditions to spread quickly in South Korea, where emergency rooms are known to cram beds closely together and patients ... «The Seattle Times, giu 15»
Liberia Nearly Ebola-Free, But Could the Virus Come Back?
Health officials typically wait 42 days to declare a country Ebola-free, because this is twice as long as the 21-day incubation period of the virus (the time it takes ... «Live Science, mag 15»
New York doctor diagnosed with Ebola now cleared of virus
Cleared of the virus, Spencer no longer poses a public health risk and is due to ... Thomas Eric Duncan, the first person to be diagnosed with the virus in the US ... «The Guardian, nov 14»
How long does the ebola virus live on a surface?
The New York Times published an interesting piece on Ebola facts and how many have been treated for the deadly virus outside of Africa, including who has ... «AOL News, ott 14»
Dallas nurse Nina Pham cleared of Ebola virus, released from hospital
A Dallas-area nurse infected by the Ebola virus, and who sparked a nationwide search for other possible infections, was declared free of the virus and released ... «Fox News, ott 14»
Ebola Study Projects Spread of Virus on Overseas Flights
The upshot is “that controlling the outbreak at the source is the most important thing that needs to happen” to prevent the international spread of the virus, said ... «Wall Street Journal, ott 14»
Ebola crisis: Spanish health workers attack poor training for …
Spanish health professionals have taken aim at the scant amount of training offered to those on the frontline fighting the Ebola virus as the investigation ... «The Guardian, ott 14»
Ebola patient Thomas Duncan may have spread virus, NIH expert says
Although he believes Ebola is contained in Texas, where Liberian man Thomas Eric Duncan first showed symptoms of the virus after traveling to the U.S., ... «CBS News, ott 14»
How the Ebola virus spreads
But the first thing you should know is that it's not very contagious -- "Common sense and observation tell us that spread of the virus via coughing or sneezing is ... «CNN, ott 14»