Results 11 to 20 of about 180,053 (203)

Selective Hydroxylation of Collagen Model Peptides by Metal Catalysis. [PDF]

Chem Biodivers
Selective hydroxylation of proline: Catalytic oxidation using iron catalysts enables the selective introduction of hydroxyl groups into the (Pro‐Pro‐Gly)n sequence, facilitating low‐cost, large‐scale synthesis of collagen sequences. ABSTRACT Collagen is formed with a repeating structure of proline (Pro)‐4‐hydroxyproline‐(4‐Hyp)‐glycine (Gly).
Oto S, Marutani A, Hamamoto Y, Kawakami A, Obora Y, Hirano Y.   +5 more
europepmc   +2 more sources

Quantifying Opacity [PDF]

2010 Seventh International Conference on the Quantitative Evaluation of Systems, 2010
Opacity is a general language-theoretic framework in which several security properties of a system can be expressed. Its parameters are a predicate, given as a subset of runs of the system, and an observation function, from the set of runs into a set of observables.
Bérard, Béatrice, Mullins, John, Sassolas, Mathieu   +2 more
openaire   +7 more sources

CytroCell@Nafion: Enhanced Proton Exchange Membranes. [PDF]

Glob Chall
A 10 wt.% amount of lemon CytroCell nanocellulose added to Nafion results in homogeneous composite CytroCell@Nafion membranes showing substantially higher proton conductivity, flexibility, and ductility than pristine Nafion membranes prepared via the same casting method and membrane post‐treatment.
Talarico D, Fontananova E, Sibillano T, Ciriminna R, Palermo S, Galiano F, Di Profio G, Figoli A, Li Petri G, Angellotti G, Meneguzzo F, Giannini C, Pagliaro M.   +12 more
europepmc   +2 more sources

Naldemedine for the Prevention of Recurrent Acute Pancreatitis: A Randomised, Double-Blind, Placebo-Controlled Trial. [PDF]

United European Gastroenterol J
ABSTRACT Background and aims No medications are currently approved for the prevention of recurrent acute pancreatitis. This trial evaluated whether naldemedine, a peripherally acting μ‐opioid receptor antagonist, reduces the risk of acute pancreatitis in patients with recurrent acute pancreatitis. Methods This was a multicentre, double‐blinded, placebo‐
Cook ME, Knoph CS, Davidsen L, Frøkjær JB, Bruun NH, Novovic S, Hadi A, Jørgensen MT, Mortensen MB, Schaffalitzky O, Nielsen LBJ, Berner-Hansen M, Drewes AM, Olesen SS.   +13 more
europepmc   +2 more sources

Updated opacities from the Opacity Project [PDF]

Monthly Notices of the Royal Astronomical Society, 2005
12 pages, 8 figures, MNRAS At Press. Revised accepted MS. Results unchanged. Revisions: New info on Data Archives, esp. OPserver.
Badnell, N.R., Bautista, M.A., Butler, K., Delahaye, F., Mendoza, C., Palmeri, P., Zeippen, C.J., Seaton, M.J.   +7 more
openaire   +7 more sources

OPAC vs. card catalogue: a comparative study of user behaviour [PDF]

, 2004
Even though use studies of card catalogue are quite rare, use of OPAC has been extensively investigated since early 1980s. Yet there are not many attempts to conduct comparative studies highlighting the differences in use of card catalogue and OPAC of ...
M.S. Sridhar, Sridhar, M. S.
core   +2 more sources

Online javno dostopni katalogi in sistemi za odkrivanje informacij / Online public access catalogues and library discovery systems [PDF]

Organizacija Znanja, 2023
This article provides an overview of computer-based catalogue systems designed for use by library clients, seeing present day discovery systems on the same trajectory as the older online public access catalogues (OPACs) which they are gradually ...
David Wells
doaj   +1 more source

The Opacity of Backbones

Proceedings of the AAAI Conference on Artificial Intelligence, 2017
A backbone of a boolean formula F is a collection S of its variables for which there is a unique partial assignment aS such that F[aS] is satisfiable (Monasson et al. 1999; Williams, Gomes, and Selman 2003).  This paper studies the nontransparency of backbones.
Lane A. Hemaspaandra, David E. Narváez
openaire   +4 more sources

Prospective evaluation of EUS-guided fine needle biopsy in pancreatic mass lesions

Endoscopy International Open, 2018
Background and study aim Due to the scarcity of specific data on endoscopic ultrasound (EUS)-guided fine-needle biopsies (SharkCore) FNB in the evaluation of pancreatic lesions, we performed a prospective study of the diagnostic performance of EUS ...
M. H. Larsen, C. W. Fristrup, S. Detlefsen, M. B. Mortensen   +3 more
doaj   +1 more source

The Metaphysics of Opacity

Philosophers' Imprint, 2023
This paper examines the logical and metaphysical consequences of denying Leibniz's Law, the principle that if t1= t2, then φ(t1) if and only if φ(t2). Recently, Caie, Goodman, and Lederman (2020) and Bacon and Russell (2019) have proposed sophisticated logical systems permitting violations of Leibniz's Law.
Diehl, C.E., Mount, B.M.
openaire   +2 more sources