Results 61 to 70 of about 215,114 (209)
Els escarabats inspiren nous materials
, 2015 La natura és sàvia i, després d'anys d'evolució, ha seleccionat materials amb propietats insuperables. Alguns experts creuen que el 80% de les solucions que la ciència busca estan en els animals i les plantes. S'investiga per aconseguir avions inspirats en el vol del cigne, edificis que imitin la termoregulació dels cactus, banyadors basats en les ...
Bueno i Torrens, David, 1965- +1 more
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, 2023 The worldwide poultry industry generates a large amount of wastes which, accordingly to the current law, are mostly discarded. These wastes include chicken feathers, keratin structures which 109.056.179 ton were generated in 2017 around the world. Taking into account this massive production and also their chemical and physical properties, keratin ...
openaire +4 more sources
Influence des facteurs naturels sur la maturation du raisin, en 1979, à Pomerol et Saint-Emilion
OENO One, 1981 Les vignobles de Pomerol et Saint-Emilion sont implantés sur des sols dérivant de roches-mères variées; ils produisent des vins de haute qualité mais différents suivant leur origine géologique.
Jacques Duteau +2 more
doaj +1 more source
MATEC Web of Conferences, 2013 Dans les stratégies de remplacement/reconstruction des os et des articulations, il est souvent fait appel à des matériaux revêtus. Le matériau de structure permet d'assurer une bonne tenue mécanique et le revêtement doit faciliter et pérenniser l'ancrage
Bertrand Ghislaine +2 more
doaj +1 more source
Yemen’s attitudes towards rhino horn and jambiyas
Pachyderm, 2008 In 1990 the Marxist government of the south that had banned civilians from possessing weapons, including the jambiya dagger, was ousted. South Yemen united with North Yemen to form one country.
Lucy Vigne, Esmond Martin
doaj +1 more source
El grafè: un nou material electrònic [PDF]
, 2010 Un material de Nobel : El grafeno es un material revolucionario que cuenta entre sus propiedades el ser transparente, buen conductor, flexible y barato que ha dejado sorprendido a la sociedad científica y que ha valido a sus investigadores el Nobel de Física.
openaire
Hamster leukemia virus: lack of endogenous DNA synthesis and unique structure of its DNA polymerase [PDF]
, 1974 Infectious hamster leukemia virus (HaLV) contains a DNA polymerase different from those of murine and avian viruses. No endogenous reaction directed by the 60 to 70S RNA of HaLV could be demonstrated in detergenttreated HaLV virions, nor could the ...
Baltimore, David +3 more
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Health Research in AfricaIntroduction. Inter-arm blood pressure difference (IAD) is a well-established clinical practice worldwide. However, the relationship between IAD and cardiovascular disease is not well known.
Fatouma Sall +4 more
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El caràcter transfigurable dels objectes digitals
Artnodes, 2011 A causa de l'augment d'internet i del que és digital, cada vegada hi ha més patrimoni cultural que adopta la forma d'operacions basades en les TIC, cosa que contradiu les pràctiques i els arxius tradicionals.
Attila Márton
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Surgical concepts for reconstruction of the auricle [PDF]
, 1986 We compiled and evaluated the world literature on auricular reconstruction, for a total of over 400 publications, more than 200 authors, and over 3,300 reported cases. We found that partial reconstructions were already performed as early as 600 BC; total
Berghaus, Alexander, Toplak, F.
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