Search results for "VR"
showing 10 items of 758 documents
Numerical study of shock formation in the dispersionless Kadomtsev-Petviashvili equation and dispersive regularizations
2013
The formation of singularities in solutions to the dispersionless Kadomtsev-Petviashvili (dKP) equation is studied numerically for different classes of initial data. The asymptotic behavior of the Fourier coefficients is used to quantitatively identify the critical time and location and the type of the singularity. The approach is first tested in detail in 1+1 dimensions for the known case of the Hopf equation, where it is shown that the break-up of the solution can be identified with prescribed accuracy. For dissipative regularizations of this shock formation as the Burgers' equation and for dispersive regularizations as the Korteweg-de Vries equation, the Fourier coefficients indicate as …
The Albian (Vraconnian)-Cenomanian boundary at the western Tethyan margins (Central Tunisia and southeastern France).
2008
AbstractThrough the description and interpretation of the position of macro- and microfossils in several sections of the Albian-Cenomanian boundary in SE France and Central Tunisia, a comparison is made between the north and south margins of the Tethyan Ocean by using the occurrences of marker bioevents. For the planktonic foraminifera, the criterions applicable for the accurate determination of Thalmanninella globotruncanoides (Sigal) – the marker species for the base of the Cenomanian stage – are discussed. The species Th. globotruncanoides and the intermediate forms with its ancestor Th. caroni (Ion) are illustrated. For the ammonites, two subjects are new. Firstly, the species Stoliczka…
Zonation by ammonites and foraminifers of the Vraconnian-Turonian interval: A comparison of the Boreal and Tethyan domains (NW Europe / Central Tunis…
2008
International audience; Since the end of the 19th century the interval comprising the uppermost Upper Albian, the Cenomamian, the Turonian and the basal Coniacian has been subdivided, first into ammonite zones, then, beginning in the middle of the 20th century, into zones of planktonic foraminifera. These two groups, one macrofossil, the other microfossil, are particularly effective for bio-chronostratigraphy thanks to their rapid rates of evolution. But differences in the faunal makeup between the Boreal domain (northwestern Europe) and the Tethyan domain (Mediterranean) have for a long time hindered precise correlation of the two domains. Today, in a time interval covering about 16 millio…
La vie à l'oeuvre : le Kandinsky de Michel Henry
2007
International audience
Development of a modified DNA extraction method for pulsed-field gel electrophoresis analysis of Staphylococcus aureus and enterococci without using …
2010
A modified pulsed-field gel electrophoresis (PFGE) protocol was developed and applied to clinical isolates of Staphylococcus aureus and enterococci to reduce the cost of using lysostaphin. This protocol reduces the expenses of PFGE typing of S. aureus and enterococci as it removes the use of lysostaphin during the spheroplast formation from these bacteria.
Riska faktori miopijas attīstībai
2019
Ievads. Miopija ir visbiežāk sastopamais refrakcijas traucējumu veids pasaulē. Tiek paredzēts, ka tās prevalence pieaug, kas būtiski ietekmē pasaules veselības sistēmu un cilvēku dzīves kvalitāti. Joprojām nav noskaidrots viens galvenais miopijas attīstības riska faktors. Pētījuma mērķis. Izpētīt un analizēt biežākos riska faktorus bērniem, kas var izraisīt miopijas attīstību. Metodes un materiāli. Pētījumā tika atlasīti 30 dalībnieki, kuri atbilda pētījuma iekļaušanas kritērijiem. Vidējais dalībnieku vecums pētījuma laikā bija 11,8 ± 2,6 gadi, no tiem 18 bija sievietes, bet 12 vīrieši. Visi pacienti pirms mērījumu uzsākšanas aizpildīja aptauju ar iespējamiem riska faktoriem. Pēc tam visiem…
Nikiforos Vrettakos. Il saggio su Nikos Kazantzakis
2020
About a Vrettakos's essay about Kazantzakis
Prefazione a: IL SOGGIORNO A TROGEN. Racconti e poesie
2021
About the circumstances of Vrettakos' visit in Trogen (Switzerland)
Treatment of prepubertal periodontitis. A case report and discussion.
1992
Abstract This paper reports the treatment of prepubertal periodontitis in a 3–year-old girl with Papillon-Lefevre Syndrome. Initially, the patient was found to have a myeloperoxidase deficiency and microbiological tests have identified Bacteroides and Fusobacterium, in 60% and 25%, respectively of the total number of microbial flora cultivated. The initial treatment was extraction of all the primary teeth with grade 3 mobility, scaling, root planing and daily subgingival irrigation with a 0.2% solution of chlorhexidine. Several months before the eruption of the first permanent molars, the rest of the primary teeth were extracted. The patient was treated with daily subgingival irrigation of …
Aux origines du droit de grève : approche juridique
1990
International audience