gebhart/patrepeval huggingface dataset:
Biocompatible nanostructured coatings based on calcium phosphates prepared by means of rf-magnetron sputtering deposition (2012)

The aim of this study was to prevent the problems associated with implants failure. Biocompatible nanostructured thin films of either Si- or Ag-containing non-stoichiometric hydroxyapatite (HA) were deposited by method of radio-frequency (rf) magnetron sputtering. Plates of Ti, Ti6Al4V and 316 L SS were used as substrates. The thin coatings were characterized by EDX, ESEM, XRD, IR spectroscopy, HRTEM, nanoindentation and scratch-test. HRTEM observations of the coatings showed a nanocrystalline structure mixed with amorphous regions. It was found that the morphology, structure and the preferred orientation of the films are greatly affected by the parameters of deposition (rf-power, substrate temperature and voltage bias). The as-deposited modified CaP-based coatings are dense, pore-free and their composition resembles that of the precursor target composition. The Si- and Ag- containing HA coatings had a hardness of 10-12 GPa. A low rf-power (30 W) resulted in amorphous or low crystalline CaP coating structure. An increase in rf-power (>; 200 W) induced the coating crystallization. The occurrence of the different structure types is described as function of the bias voltage and temperatures. The negative substrate bias allowed to vary the Ca/P ratio in the range of 1.53 to 4. In vitro biocompatibility assessments of the films using the MG63 osteoblast-like cells indicated excellent cell adherence and surface colonization. Si-containing rf-magnetron films promote osteogenic differentiation of human stromal stem cells in vitro. The coatings are prospective to be used in clinical practice: in stomatology or craniofacial medicine, where the leaching of toxic ions from the substrate is necessary or the initial material surface porosity for a further bone in growth should be preserved.
Tuning of surface plasmons in visible and near infrared range using plasmonic crystals (2010)

Surface plasmons (SPs) are electromagnetic waves propagating along metallic-dielectric interfaces which can be supported by structures at broad scales and can find extensive applications from sensing to optical waveguiding. SPs can take different forms, from free waves to localized oscillations depending on different geometries. The excitation of the spectrum of a plasmonic nanostructure is determined by its collective electronic oscillations. Furthermore, the plasmon modes of a nanostructure are determined by its composition, scale and shape. Plasmonic coaxial nanostructures have drawn considerable attention recently because of their fascinating properties and their great potential as an important canditate of ultracompact optical devices. Here, we demonstrate tunable optical response using coaxial apertures with ultrasmall gaps (less than 50 nm) and nanorods with square lattice fabricated using focused ion beam milling and e-beam lithography followed by argon ion milling, respectively.
Early predictors of adolescent violence (2000)

Violence prevention programs for younger adolescents should include efforts to prevent or reduce troublesome behavior in school and poor academic performance. Adolescent girls may also profit from efforts to raise self-esteem; adolescent boys may need extra training in resisting influences that encourage deviant behavior. Programs aimed at preventing drug use may yield an added violence-reduction bonus.
Growth of<i>streptococcus lactis</i>in milk in a continuous fermenter (1971)

Summary Milk was added to a continuous fermenter to maintain a selected operating pH in the range 5·4–6·0, a fermentation system controlled in this way being called a pH-stat. Below pH 5·4 casein coagulated in the fermenter and on the pH electrodes. At pH 6·0 stirring inhibited the growth of the test culture, Streptococcus lactis C 10, but the inhibitory effect was reduced and the culture grew satisfactorily when the milk reservoir was sparged with 5% CO 2 in N 2 or with N 2 alone. The dilution rate was highest near pH 6·0, which was close to the optimum pH for the growth of the organism. The rate of production of lactic acid and of bacterial cells in the fermenter was highest at pH 5·4.
Collaborative Engineering Based on Knowledge Sharing Agreements (1995)

The design of products by multi-disciplinary groups is a knowledge intensive activity Collaborators must be able to exchange informa tion and share some common understanding of the informaton's content The hope, however, that an integrated workbench of application tools will span the needs of engineering collaborators is misplaced We argue that an integrated workbench of application tools cannot meet the long- term needs of engineering collaborators Moreover, standards cannot satisfy the information sharing needs of collaborators, because these needs are dynamic
Immunoassays in Veterinary Plant‐Made Vaccines (2010)

This chapter contains sections titled: Introduction Plant-Made Antigen Extraction Antigen Detection and Quantification in Plant Tissues Immunoassays for Determining Response to Veterinarian Plant-Made Vaccines Other Technologies and Techniques References
Trioxaquine PA1259 Alkylates Heme in the Blood-Feeding Parasite Schistosoma mansoni (2011)

Trioxaquine PA1259 is an efficient drug on larval- and adult-stage schistosomes, able to alkylate heme inside worms treated with it, leading to the formation of covalent heme-drug adducts. Such a mechanism, similar to one reported for other trioxaquines in Plasmodium, indicates that heme may be a common target of these trioxane-based drugs in different blood-feeding parasites.
Lycopene Supplementation Attenuates the Inflammatory Status of Colitis in a Rat Model (2001)

The aim of this study was to examine the influence of lycopene and beta-carotene on the inflammatory status in a rat model of induced-colitis. Using the 2,4,6-trinitrobenzenesulfonic acid (TNBS) model, colitis was induced in thirty-two male Wistar rats divided into four groups. Each group received a different diet regime in parallel with the induction of colitis and was sacrificed after seven days. The groups were divided as follows: Group A: without colitis and fed a normal chow diet; Group B: induced with colitis and fed a diet supplemented with lycopene (300 micrograms/rat/day); Group C: induced with colitis and fed a diet supplemented with beta-carotene (300 micrograms/rat/day); Group D: induced with colitis and fed a normal chow diet. Colonic inflammation following TNBS induction was characterized by hemorrhagic necrosis and fibrosis of the mucosa, increased colonic wall thickness, infiltration of inflammatory cells, and increased myeloperoxidase (MPO) activity. Supplementation of lycopene in the diet had a beneficial effect on the various macroscopic parameters examined including: colonic thickness, colon weight, and total area of inflammation. Furthermore, the level of myeloperoxidase (MPO) was significantly lower in the lycopene-treated group compared to the control group. In terms of microscopic changes, a more attenuated inflammatory reaction was observed in the group fed a diet supplemented with lycopene. No significant effect was noted in the beta-carotene-supplemented group. Therefore, we propose that the dietary supplementation of lycopene may be an effective approach for reducing the level of oxidative stress and improving the inflammatory status of colitis.
Electrical properties of transition-metal carbides of group IV (1989)

Electrical resistivities of six single crystals of group-IVB transition-metal carbides are reported for temperatures between 4 and 1000 K. Hall coefficients of the crystals are reported for temperatures to 350 K. The chemical analyses of the ratio of carbon-to-metal atoms in the crystals (0.89 to 0.99) were verified by an inverse linear relationship between the carbon-vacancy concentration and the low-temperature Hall mobilities. Bloch-Gr\"uneisen theory provides a fit to the temperature dependence of the resistivity data that passes the ${\ensuremath{\chi}}^{2}$ test for ${\mathrm{TiC}}_{\mathrm{x}}$ and ${\mathrm{ZrC}}_{\mathrm{x}}$ but not for ${\mathrm{HfC}}_{0.99}$. The measurements reveal a tendency toward resistivity saturation at high temperature that is well described by a parallel-resistance model in which the saturation resistivity corresponds to a carrier mean free path roughly equal to the lattice constant. The measurements are compared to earlier experimental studies and to predictions of band-structure calculations. Theories of electronic transport are evaluated.
Using a Software Tool for Public Decision Analysis: The Case of Nacka Municipality (2007)

This paper presents a case of interval decision analysis using a tool that takes advantage of interval probabilities, values, and criteria weights and is capable of handling comparative relations, i.e., interval statements on differences between variables. These statements are represented as constraints to the solution set and evaluated using a number of different evaluation methods, each serving the decision maker with different insights of the decision problem. We demonstrate the applicability of the tool in a case study of three public infrastructure decision problems that had remained unresolved for a number of years.
Spectral transmittance of the ocular media of the bluegill (<i>Lepomis macrochirus</i>) (1987)

The spectral transmittance of bluegill (Lepomis macrochirus) ocular media (n = 10 eyes) was measured over the wave band 310 to 750 nm, using a specially modified spectrophotometer. Transmittance was approximately uniform at 0.92 between 450 and 750 nm, fell to < 0.5 by 400 nm, and to 0.01 by 370 nm. The ocular media minimize exposure of the retina to potentially harmful shortwave ultraviolet radiation. The adaptive significance of such a preretinal filter in this teleost is briefly discussed.
Improving the Stability of Probiotic Bacteria in Model Fruit Juices Using Vitamins and Antioxidants (2010)

This study examined the survival of probiotic bacteria in a model fruit juice system. Three different strains of probiotic bacteria were used in this study: HOWARU Lactobacillus rhamnosus HN001, HOWARU Bifidobacterium lactis HN001, and Lactobacillus paracasei LPC 37. The probiotic bacteria were inoculated into model juice with various vitamins and antioxidants, namely white grape seed extract, green tea extract, vitamin B2, vitamin B3, vitamin B6, vitamin C, and vitamin E. The model juice without any additives was used as a control. Their viability was assessed on a weekly basis using plate count method. The model juice was made with sucrose, sodium citrate, citric acid powder, and distilled water and was pasteurized before use. Our findings showed that probiotic bacteria did not survive well in the harsh environment of the model fruit juice. However, the model juice containing vitamin C, grape extract, and green tea extract showed better survival of probiotic bacteria. The model juice containing grape seed extract, green tea extract, and vitamin C had the same initial population of 8.32 log CFU/mL, and at the end of the 6-wk storage period it had an average viability of 4.29 log CFU/mL, 7.41 log CFU/mL, and 6.44 log CFU/mL, respectively. Juices containing all other ingredients tested had viable counts of <10 CFU/mL at the end of the 6-wk storage period.
Homotransplantation of the aortic valve (1970)

Homotransplantation of heart valves has emerged as a logical consequence to the successful use of vascular homografts (1) (2). After the experimental experience of Lam(3) and Brewin(4), Gordon, Murray in 1956 (5) inserted fresh homograft valves in the descending aorta of 3 patients, and in 1962 Donald Ross implanted an aortic homograft in the subcoronary position for the first time (6).
The significance of the blood-cholesterol in genito-urinary surgery (1928)

Journal Article The significance of the blood-cholesterol in genito-urinary surgery Get access James Maxwell James Maxwell Physician to Out-Patients Royal Chest Hospital, London Search for other works by this author on: Oxford Academic Google Scholar British Journal of Surgery, Volume 16, Issue 62, October 1928, Pages 226–234, https://doi.org/10.1002/bjs.1800166209 Published: 05 December 2005
Hadroproduction of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>χ</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>χ</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>states of charmonium in 800-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">GeV</mml:mi><mml:mo>/</mml:mo><mml:mi>c</mml:mi></mml:math>proton-silicon interactions (2000)

The cross sections for the hadroproduction of the ${\ensuremath{\chi}}_{1}$ and ${\ensuremath{\chi}}_{2}$ states of charmonium in proton-silicon collisions at $\sqrt{s}=38.8$ GeV have been measured in Fermilab fixed target experiment 771. The \ensuremath{\chi} states were observed via their radiative decay to $J/\ensuremath{\psi}\ensuremath{\gamma},$ where the photon converted to ${e}^{+}{e}^{\ensuremath{-}}$ in the material of the spectrometer. The estimated values for the ${\ensuremath{\chi}}_{1}$ and ${\ensuremath{\chi}}_{2}$ cross sections for ${x}_{F}>0$ are $263\ifmmode\pm\else\textpm\fi{}69(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}32(\mathrm{syst})$ and $498\ifmmode\pm\else\textpm\fi{}143(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}67(\mathrm{syst})$ nb per nucleon, respectively. The resulting $\ensuremath{\sigma}({\ensuremath{\chi}}_{1})/\ensuremath{\sigma}({\ensuremath{\chi}}_{2})$ ratio of $0.53\ifmmode\pm\else\textpm\fi{}0.20(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.07(\mathrm{syst}),$ although somewhat larger than most theoretical expectations, can be accommodated by the latest theoretical estimates.
An Erythrocyte Vesicle Protein Exported by the Malaria Parasite Promotes Tubovesicular Lipid Import from the Host Cell Surface (2008)

Plasmodium falciparum is the protozoan parasite that causes the most virulent of human malarias. The blood stage parasites export several hundred proteins into their host erythrocyte that underlie modifications linked to major pathologies of the disease and parasite survival in the blood. Unfortunately, most are 'hypothetical' proteins of unknown function, and those that are essential for parasitization of the erythrocyte cannot be 'knocked out'. Here, we combined bioinformatics and genome-wide expression analyses with a new series of transgenic and cellular assays to show for the first time in malaria parasites that microarray read out from a chemical perturbation can have predictive value. We thereby identified and characterized an exported P. falciparum protein resident in a new vesicular compartment induced by the parasite in the erythrocyte. This protein, named Erythrocyte Vesicle Protein 1 (EVP1), shows novel dynamics of distribution in the parasite and intraerythrocytic membranes. Evidence is presented that its expression results in a change in TVN-mediated lipid import at the host membrane and that it is required for intracellular parasite growth, but not invasion. This exported protein appears to be needed for the maintenance of an essential tubovesicular nutrient import pathway induced by the pathogen in the host cell. Our approach may be generalized to the analysis of hundreds of 'hypothetical' P. falciparum proteins to understand their role in parasite entry and/or growth in erythrocytes as well as phenotypic contributions to either antigen export or tubovesicular import. By functionally validating these unknowns, one may identify new targets in host-microbial interactions for prophylaxis against this major human pathogen.
Effect of the Immobilization Method of Lipase from Thermomyces lanuginosus on Sucrose Acylation (2002)

Lipase from Thermomyces lanuginosus (formerly Humicola lanuginosa ) was immobilized using granulation by incubating low-particle-size silica with the lipase. Granules with a particle diameter in the range 0.3-1 u mm were obtained. The immobilized lipase was tested in the acylation of sucrose with vinyl laurate in mixtures of tert -amyl alcohol: dimethyl sulfoxide. Results were compared with immobilization of enzyme by adsorption on polypropylene (Accurel EP100), deposition on Celite by precipitation, and covalent attachment to Eupergit C. Granulated lipase converted >95% of sucrose into 6- O -lauroylsucrose in 6 u h. Accurel-lipase was also very active, converting 70% of sucrose into monoester in 2 u h. The residual activity of granules after five reaction cycles under the best reaction conditions was 72%; this value was considerably higher than the one observed for the same lipase adsorbed on Accurel (15% residual activity after five cycles).
New Automated Systems for Size-fractionation of Protein Samples. (2013)

Sage Science has developed two new systems for automated preparative electrophoresis of protein samples. In both systems, the user simply loads samples into precast gel cassettes, programs the desired collection ranges into instrument software, and starts the run. At run completion, the user removes the desired protein fraction(s) from membrane-bounded elution modules within the cassette. The fractionated samples are recovered in SDS gel buffer – no gel extraction is required. Instrument software controls of timing of protein fractionation using input from on-board optical detection units, which monitor the progress of fluorescently-labeled molecular weight markers during electrophoresis.
ChemInform Abstract: LIGAND SUBSTITUTION IN MOLYBDENUM(0) CARBONYL COMPLEXES MO(CO)5(AMINE) AND CIS‐MO(CO)4(AMINE)2: KINETICS AND HIGH‐PRESSURE EFFECTS (1985)

Abstract Die Geschwindigkeitskonstanten und Aktivierungsparameter der Reaktion von (I) und (II) mit zweizähnigen N‐Donatorliganden zu (III) wurden in Toluol bei Normaldruck und 20, 500, 1000 und 1500 at mittels sichtbarer Spektrophotometrie bestimmt.
Structural and Magnetic Properties of Layered Copper(II) Coordination Polymers Intercalating s and f Metal Ions (2007)

The nanoporous coordination polymer [Cu(pyrimidin-2-olate-N1,N3)2]n (1C) of the sodalite zeotype sorbs a variety of metal nitrates [M(NO3)m, M = Na+, K+, Rb+, Tl+, Ca2+, Sr2+, Ba2+, Pb2+, La3+, Nd3+, Gd3+, Er3+] from H2O/MeOH solutions, with a concomitant structural change to a layered [Cu(pyrimidin-2-olate-N1,N3)2]n.[M(NO3)m]n/2 (MNO3@1L) coordination framework. Single-crystal X-ray diffraction analyses revealed that the layers are based on Cu4(pyrimidin-2-olate-N1,N3)4 square grids of copper(II) ions bridged by N1,N3 exobidentate ligands, displaying a structural motif of the metallacalix[4]arene type in pinched cone conformation. The interlayer space is occupied by the guest metal nitrates, each metal being coordinated by (at least) the four oxygen atoms of a metallacalix[4]arene. Magnetic measurements on the MNO3@1L series denoted a weak ferromagnetic ordering taking place below the Néel temperatures (typically close to 35 K), arising from spin-canting phenomena of the antiferromagnetically coupled copper centers. When M = Nd3+, Gd3+, or Er3+, additional magnetic ordering is observed at lower temperatures, which, on the basis of static and dynamic magnetic susceptibility measurements, can be attributed to copper- lanthanide interactions.
An ontology-based approach for decentralized monitoring and diagnostics (2014)

Modern decentralized industrial applications demand the design of application-independent solutions for monitoring and diagnostics systems (MDSs) that exhibit a high degree of flexibility and re-utilization. To achieve this, we propose an ontology-based approach that adheres to the Meta Object Facility (MOF) paradigm for engineering and maintenance of MDSs. The key of our approach is to built a decentralized system architecture implemented on a semantic technology stack. Our architecture allows for storing plant engineering expert knowledge and the monitoring and diagnosis rules in formalized OWL models. The plant models can then be processed by the rules to compute monitoring states and diagnose causes of faults. This paper specifically focuses on a system implementation in alignment to requirements of the industrial domain. Based on these requirements, alternative knowledge-based tools and techniques are compared to evaluate the effectiveness of our approach.
Erratum: “Fluorescence diffuse optical tomography using upconverting nanoparticles” [Appl. Phys. Lett. 94, 251107 (2009)] (2009)

First Page
Impaired Visual Object Recognition and Dorsal/Ventral Stream Interaction in Schizophrenia (2002)

Patients with schizophrenia are profoundly impaired in perceptual closure as indicated by both impaired performance and impaired N(cl) generation. The selective impairment in dorsal stream P1 is consistent with prior reports of impaired magnocellular processing in schizophrenia. By contrast, intact ventral N1 generation suggests that the initial stages of ventral stream processing are relatively preserved and that impaired magnocellular dorsal stream functioning in schizophrenia may lead to secondary dysregulation of ventral stream object recognition processing.
ENANTIOMERICALLY PURE BETA-AMINO SULFIDES AND BETA-AMINO THIOLS FROM EPHEDRINE (1994)

Ephedrine and pseudoephedrine are converted by means of a Mitsunobu reaction to respectively trans- and cis-aziridines, which can be ring-opened at the benzylic center with inversion of configuration by thiols and thiol acids. The trans-aziridine from ephedrine reacts also with H2S in acetone under which conditions the amino thiol is trapped as the thiazolane. The same aziridine also undergoes cycloaddition with CS2.
Parametric Study of Realistic Carbon-nanotube-based Electrically-short Resonant Antennas (2012)

International audience
Compounds with Boron at the Bridgehead—A Study of the Steric Consequences of Planar Boron<sup>1</sup> (1951)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCompounds with Boron at the Bridgehead—A Study of the Steric Consequences of Planar Boron1Herbert C. Brown and Edward A. FletcherCite this: J. Am. Chem. Soc. 1951, 73, 6, 2808–2813Publication Date (Print):June 1, 1951Publication History Published online1 May 2002Published inissue 1 June 1951https://pubs.acs.org/doi/10.1021/ja01150a112https://doi.org/10.1021/ja01150a112research-articleACS PublicationsRequest reuse permissionsArticle Views463Altmetric-Citations66LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Novel V<sup>III</sup> Complexes with a Central [V<sub>3</sub>(μ<sub>3</sub>‐S)‐(μ‐S<sub>2</sub>)<sub>3</sub>]<sup>+</sup> or [V<sub>2</sub>(μ‐O)(μ‐SPh)<sub>2</sub>]<sup>2+</sup> Unit (1993)

Positioned in the middle of the V3 triangle in complex 1, whose edges are bridged asymmetrically by three S ligands, is a μ3-sulfido ligand (the central unit of 1 is shown on the right). In addition each V atom is coordinated to a terminal bipyridyl ligand. This structure type is new for vanadium complexes.