gebhart/patrepeval huggingface dataset:
Li<sub>6</sub>La<sub>3</sub>SnMO<sub>12</sub>(M = Sb, Nb, Ta), a Family of Lithium Garnets with High Li-Ion Conductivity (2012)

In order to investigate the influence of covalent bonding within the garnet framework on the conductivity of Li+ in the interstitial space, the Li+ conductivities in the family of Sn-based compounds Li6La3SnMO12 (M = Sb, Nb, Ta) have been obtained and are compared with those of Li6La3ZrMO12. Refinement of the neutron diffraction pattern of Li6La3SnNbO12 shows that the interstitial tetrahedral sites (24d) are about half-occupied and most of the Li in the interstitial bridging octahedral sites are displaced from the center position (48g). The Sb-based compound has the largest lattice parameter while the Ta-based compound has the highest Li+-ion conductivity of 0.42×10−4 S cm−1.
AvSat: an aeronautical satellite communications system (2003)

The development of an industry-owned and -managed global aeronautical satellite system (known as AvSat) to meet the expanding communications needs of the airline industry well into the next century is described is described. The three major subsystems of AvSat-ground segment, avionics and cabin systems, and space segment-are presented. The AvSat system provides on a global basis, an integrated communications transport system for air traffic control, aeronautical operational control, aeronautical administrative communications, and airline passenger communications.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Comparison of Outcome Using Three Methods of Treatment for Intervertebral Lumbar Disc Disease (2006)

Background and Purpose: There are controversies with treatment for intervertebral disc disease of the lumbar spine. Methods: We performed 3 surgical methods for intervertebral lumbar spine disc disease during the period 1994 to 1999. Clinical and radiological follow-up data were obtained to compare the results and sequential complications. The methods were a traditional discectomy (38 patients), posterolateral fusion (PLF; 6 patients), and posteriorlumbar interbody fusion (PLIF; 11 patients). Fifty-five patients who underwent surgery and for whom postoperative lumbar spinal X-ray films were obtained completed questionnaires regarding pain relief, recovery to work ability, recurrent symptoms, and the need for a reoperation. Disc height change, segmental instability, and spondylolisthesis were determined by comparing the pre- and postoperative X-ray films. Results: Clinical and radiological outcomes were compared between groups undergoing the 3 operative methods. In the discectomy group, 18% required a reoperation, due in all cases to recurrence of disc herniation. The worst postoperative symptoms and greatest disc height loss were also noted in this group. PLF group patients had fewer postoperative symptoms, yet more junction problems were noted radiologically. Conclusion: PLIF group patients had the best stability but only fair improvement in postoperative symptoms. None of the 3 methods was superior to the other methods in terms of surgical outcomes.
Equilibrium Relationships of Metal Chelates in Hydroponic Solutions (1972)

Abstract Stability‐pH diagrams were developed to describe the equilibrium relationships of metal ions with chelating agents in nutrient solutions for the following chelating agents: EGTA, EDTA, DTPA, CDTA, and EDDHA. These stability diagrams give the concentration of each chelated metal species in solution in the pH range of 4 to 9 and provide a reliable means for selecting appropriate chelating agents for specific purposes. With increased pH, displacement of Fe 3+ from the following chelating agents by divalent cations is in the order EGTA > EDTA > DTPA > CDTA > EDDHA. Similar developments can be extended to other chelating agents and to nutrient solutions of different composition.
Helicobacter pylori utilises urea for amino acid synthesis (1996)

Helicobacter pylori has one of the highest urease activities of all known bacteria. Its enzymatic production of ammonia protects the organism from acid damage by gastric juice. The possibility that the urease activity allows the bacterium to utilise urea as a nitrogen source for the synthesis of amino acids was investigated. H. pylori (NCTC 11638) was incubated with 50 mM urea, enriched to 5 atom% excess 15N, that is the excess enrichment of 15N above the normal background, in the presence of either NaCl pH 6.0, or 0.2M citrate pH 6.0. E. coli (NCTC 9001) was used as a urease-negative control. 15N enrichment was detected by isotope ratio mass spectrometry. H. pylori showed intracellular incorporation of 15N in the presence of citrate buffer pH 6.0 but there was no significant incorporation of 15N in unbuffered saline or by E. coli in either pH 6.0 citrate buffer or unbuffered saline. The intracellular fate of the urea-nitrogen was determined by means of gas chromatography/mass spectrometry following incubation with 15N enriched 5 mM urea in the presence of either 0.2 M citrate buffer pH 6.0 or 0.2 M acetate buffer pH 6.0. After 5 min incubation in either buffer the 15N label appeared in glutamate, glutamine, phenylalanine, aspartate and alanine. It appears, therefore, that at pH and urea concentrations typical of the gastric mucosal surface, H. pylori utilises exogenous urea as a nitrogen source for amino acid synthesis. The ammonia produced by H. pylori urease activity thus facilitates the organism's nitrogen metabolism at neutral pH as well as protecting it from acid damage at low pH.
Conservando la flora y los hábitats silvestres con las comunidades locales en el Sur y Este de la Región Mediterránea (IPA Med) (2016)

La Region Mediterranea esta reconocida a nivel internacional como uno de los principales centros mundiales de diversidad, albergando un 10% de las plantas vasculares conocidas del planeta en el 1,6% de su superficie (Medail & Quezel, 1997). Ademas de contar con una gran riqueza de especies (estimada en 25.000) cabe destacar que mas de la mitad son endemismos que solo se encuentran en esta region. Esta diversidad vegetal es, asimismo, un valioso y vital recurso natural que sustenta a los seres vivos, entre ellos la poblacion humana que habita en esta region.
Reaction of phenylhydroxylamine with bisulfite. A possible model for amine-mediated carcinogenesis (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReaction of phenylhydroxylamine with bisulfite. A possible model for amine-mediated carcinogenesisL. A. Sternson, A. S. Dixit, and A. R. BeckerCite this: J. Org. Chem. 1983, 48, 1, 57–60Publication Date (Print):January 1, 1983Publication History Published online1 May 2002Published inissue 1 January 1983https://pubs.acs.org/doi/10.1021/jo00149a012https://doi.org/10.1021/jo00149a012research-articleACS PublicationsRequest reuse permissionsArticle Views144Altmetric-Citations7LEARN 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
Distance Preserving Embeddings for General n-Dimensional Manifolds. (2012)

Low dimensional embeddings of manifold data have gained popularity in the last decade. However, a systematic finite sample analysis of manifold embedding algorithms largely eludes researchers. Here we present two algorithms that embed a general n-dimensional manifold intoR d (where d only depends on some key manifold properties such as its intrinsic dimension, volume and curvature) that guarantee to approximately preserve all interpoint geodesic distances.
Excimer laser ablation of soft tissue: a study of the content of rapidly expanding and collapsing bubbles (1994)

Both holmium (/spl lambda/=2.09 /spl mu/m) and excimer (/spl lambda/=308 nm) lasers are used for ablation of tissue. In a previous study, excimer laser ablation of aorta produced rapidly expanding and collapsing vapor bubbles. To investigate whether the excimer-induced bubble is caused by vaporization of (tissue) water, the threshold fluence for bubble formation at a bare fiber tip in water and on tissue was compared between the excimer laser (pulse length 115 ns) and the Q-switched and free-running holmium lasers (pulse length 1 /spl mu/s and 250 /spl mu/s, respectively). To induce bubble formation by excimer laser light in water, the absorber Oxybuprocaine-hydrochloride (OBP-HCl) was added to the water. Fast flash photography was used to measure the threshold fluence as a function of the water temperature (6-90/spl deg/C) at ambient pressure and as a function of the boiling temperature of water (100-184/spl deg/C) at augmented environmental pressures (1-11 bar). For both the holmium and excimer laser, the threshold fluence for bubble formation decreased proportionally with increasing water temperature (correlation coefficient r=0.95-0.99). Correspondingly, the threshold fluence for bubble formation increased with increasing boiling temperature of water. A similar correlation was found for the excimer laser-induced bubble formation on tissue. Furthermore, for both the holmium and the excimer laser, the threshold fluence for water vaporization was much lower than theoretically predicted values. It is concluded that the principal content of the large (up to 3 mm), short lived (<300 /spl mu/s) bubble induced by a 308 nm excimer laser pulse is tissue water vapor, rather than a mixture of compounds generated by pyrolysis of tissue proteins. Consequently, explosive vaporization of tissue water may contribute to the excimer laser ablation of aortic tissue.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Synthetic RGD peptides derived from the adhesive domains of snake-venom proteins: evaluation as inhibitors of platelet aggregation (1993)

Synthetic peptides based on the RGD domains of the potent platelet aggregation inhibitors kistrin and dendroaspin were generated. The 13-amino-acid peptides were synthesized as dicysteinyl linear and disulphide cyclic forms. In platelet-aggregation studies, the cyclic peptides showed 3-fold better inhibition than their linear equivalents and approx. 100-fold greater potency than synthetic linear RGDS peptides derived from fibronectin. An amino acid substitution, Asp10→Ala, in the kistrin-based peptide gave a 4-fold decrease in potency in the linear peptide, but produced a 2-fold elevation in the inhibitory activity of the cyclic form, generating a peptide of potency comparable with that of the parent protein.
Six uneventful pregnancy outcomes in an extended vascular Ehlers–Danlos syndrome family (2016)

Vascular Ehlers-Danlos Syndrome (vEDS) is caused by heterozygous mutations in COL3A1 and is characterized by fragile vasculature and hollow organs, with a high risk of catastrophic events at a young age. During pregnancy and delivery, maternal mortality rates up until 25% have been reported. However, recent pedigree analysis reported a substantial lower pregnancy-related mortality rate of 4.9%. Here, we describe an extended vEDS family with multiple uneventful pregnancy outcomes. In the proband, a 37-year-old woman, DNA-analysis because of an asymptomatic iliac artery dissection revealed a pathogenic mutation in COL3A1 (c.980G>A; p. Gly327Asp). She had had three uneventful vaginal deliveries. At the time of diagnosis, her 33-year-old niece was 25 weeks pregnant. She had had one uneventful vaginal delivery. Targeted DNA-analysis revealed that she was carrier of the COL3A1 mutation. Ultrasound detected an aneurysm in the abdominal aorta with likely a dissection. An uneventful elective cesarean section was performed at a gestational age of 37 weeks. The 40-year-old sister of our proband had had one uneventful vaginal delivery and an active pregnancy wish. Cascade DNA-screening showed her to carry the COL3A1 mutation. Computed Tomography Angiography (CTA) of her aorta revealed a type B dissection with the most proximal entry tear just below the superior mesenteric artery. Pregnancy was therefore discouraged. This familial case illustrates the complexity and challenges of reproductive decision-making in a potentially lethal condition as vEDS, and highlights the importance of a multidisciplinary approach. Moreover, it suggests that previous pregnancy-related risks of vEDS may be overestimated. © 2016 Wiley Periodicals, Inc.
RejeX-iT'" AG-36 THE GENTLE WAY TO REPEL GEESE FROM GOLF COURSES AND OTHER TURF AREAS (1993)

Birds have always been a problem in agriculture, specially for berries and fruits. Farmers and home owners have been fighting these problems with limited success for centuries. However, the problems with birds on turf are relatively new and are not even known by many people. The "Complete Guide to Pest Control" (Ware 1988) does not even mention geese as a pest, or golf courses as an area of bird problems.
Boundary-scan update-IEEE P1149.2 description and status report (1992)

The IEEE P1149.2 Working Group is developing a standard that supports boundary scan for board-level interconnect testing and supports internal scan for device- or board-level component testing. The group's overall objective is to establish minimal mandatory features that are adaptable to individual applications. P1149.2's current status and the most recent proposals being considered for the standard are described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Isolation of avidin and lysozyme from egg albumen (2010)

A single column cation exchange method was developed which allowed simultaneous recovery of lysozyme and avidin from undiluted egg white using a unique elution sequence which involved accumulation of avidin on the column through several cycles of egg white application and lysozyme elution. Lysozyme was recovered with higher yields than reported for the isoelectric precipitation methods often used in the industry (86% vs 60 - 80%) and in high purity. Avidin recovery was also as good or better than that of previously reported ion exchange methods (74 - 80% vs 17 -80%). The purity of the avidin fraction (up to 40.9%) was superior to other reported primary avidin fractions. Avidin was shown to have a greater potential for both electrostatic and hydrophobic interactions with Duolite C-464 than lysozyme but under the conditions of this separation, electrostatic interactions were dominant. Secondary purification of avidin by carboxymethyl celluose cation exchange (CMC), gel filtration, metal chelate interaction chromatography (MCIC), aliphatic hydrophobic interaction chromatography (HIC), and Phenyl-Sepharose interaction chromatography (PSIC) each resulted in considerable increase in avidin purity. In terms of resin capacity, yields, and avidin purity however, CMC ion exchange was superior. A comparison of sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) andnative protein electrophoresis profiles gave clear evidence of protein - protein interaction between avidin and lysozyme in partially purified avidin preparations. This interaction may also occur between the native proteins in the egg white, but has not been demonstrated with certainty. The molar ratio of avidin to available biotin binding sites was estimated by 5 methods. For highly purified avidin samples the hydroxy azo benzoic acid (HABA) method proposed by Green (1965) was superior. A new method, utilizing an immobilized biotin column, which did not require extensive purification of avidin was found to give similar results. Finally, a highly sensitive assay of proteins bound to nitrocellulose membranes was developed which was capable of quantifying as little as 0.12 µg of protein. Membrane bound proteins were labeled with peroxidase via a biotin - avidin linkage as previously reported and bound peroxidase activity was related to initial protein content. The method was applicable to determination of the relative concentrations of different protein bands on Western blots of electrophoresis gels.
Prolyl hydroxylase half reaction: peptidyl prolyl-independent decarboxylation of alpha-ketoglutarate. (1978)

Prolyl hydroxylase (proline,2-oxoglutarate dioxygenase, EC 1.14.11.2) is a mixed-function oxygenase that hydroxylates peptidyl proline with the simultaneous and stoichiometric decarboxylation of alpha-ketoglutarate to succinate and CO2. It has been found that highly purified preparations of the enzyme can decarboxylate alpha-ketoglutarate in the absence of a peptidyl proline substrate. The uncoupled decarboxylation proceeds at only a fraction of the rate of the whole reaction and for study requires substrate quantities of the pure enzyme, as well as oxygen, ferrous ion, and ascorbate. No hydroxyproline is formed under these conditions. Immobilized antiserum to prolyl hydroxylase was found to remove both activities from enzyme preparations. However, addition of free antiserum during incubation inhibits only the complete reaction. Poly(L-proline), a specific inhibitor of prolyl hydroxylation, enhances the uncoupled decarboxylation of alpha-ketoglutarate without itself being hydroxylated. All of these findings prove that alpha-ketoglutarate can serve as substrate in the absence of peptidyl proline and is most likely the initial site of attack by oxygen. In the coupled reaction an oxidized form of the keto acid, perhaps a peroxy acid, then attacks prolyl residues in the unhydroxylated substrate.
A Pilot Study of Rapid Cooling by Cold Saline and Endovascular Cooling Before Reperfusion in Patients With ST-Elevation Myocardial Infarction (2010)

URL: http://www.clinicaltrials.gov. Unique identifier: NCT00417638.
Stabilization Policy Ten Years After (1980)

James Tobin, Edmund S. Phelps, William Poole, Martin Feldstein, Hendrik Houthakker, Franco Modigliani, Patric Hendershott, Benjamin Friedman, George Perry, James Duesenberry, William Fellner, Robert Gordon, William Branson, Martin Baily, William Nordhaus, Stabilization Policy Ten Years After, Brookings Papers on Economic Activity, Vol. 1980, No. 1, Tenth Anniversary Issue (1980), pp. 19-89
Inhibition of Interferon Stimulation of Natural Killer Cell Activity in Mice Anesthetized with Halothane or Isoflurane (1993)

Halothane and isoflurane inhibit interferon stimulation of NK cytotoxicity in naive (unstimulated) NK cells of the splenic mononuclear cell pool without affecting the cytotoxicity of previously stimulated (interferon) NK cells. This could occur directly by preventing the NK cell from responding or indirectly by altering other cells in the splenic mononuclear cell pool (T cells, macrophages), which then inhibit NK cell induction.
Structure and Conformation of Photosynthetic Pigments and Related Compounds. 12. A Crystallographic Analysis of Porphyrin-quinones and Their Precursors (1999)

Abstract. A comprehensive crystallographic analysis of 10 porphyrin quinone precursors (dimethoxybenzene derivatives), and six porphyrin quinones has been performed. The free bases and zinc(II) complexes of the porphyrin quinones are of the 5,10,15-triaryl/alkyl-20-quinone-porphyrin type and carry various bridging and quinone units. The structural and conformational parameters were determined for all compounds; the donor-acceptor separation distances range from 6.3 to 10.9 Å. Knowledge of these data is a prerequisite for a detailed interpretation of theoretical and spectroscopic studies on such systems. Despite the obvious influence of the type and geometry of the bridging unit and quinone on the spatial arrangement of the donor and acceptor components, a large variety of different packing arrangements in the crystal were observed. These include π stacking, aggregate formation and axial ligation in the zinc(II) porphyrins. The latter often utilized the quinone (or dimethoxy) oxygen atoms for coordination to zinc(II) centers leading to porphyrin quinone dimers and even polymers.
Fast Realistic MRI Simulations Based on Generalized Multi-Pool Exchange Tissue Model (2016)

We present MRiLab, a new comprehensive simulator for large-scale realistic MRI simulations on a regular PC equipped with a modern graphical processing unit (GPU). MRiLab combines realistic tissue modeling with numerical virtualization of an MRI system and scanning experiment to enable assessment of a broad range of MRI approaches including advanced quantitative MRI methods inferring microstructure on a sub-voxel level. A flexible representation of tissue microstructure is achieved in MRiLab by employing the generalized tissue model with multiple exchanging water and macromolecular proton pools rather than a system of independent proton isochromats typically used in previous simulators. The computational power needed for simulation of the biologically relevant tissue models in large 3D objects is gained using parallelized execution on GPU. Three simulated and one actual MRI experiments were performed to demonstrate the ability of the new simulator to accommodate a wide variety of voxel composition scenarios and demonstrate detrimental effects of simplified treatment of tissue micro-organization adapted in previous simulators. GPU execution allowed ∼ 200× improvement in computational speed over standard CPU. As a cross-platform, open-source, extensible environment for customizing virtual MRI experiments, MRiLab streamlines the development of new MRI methods, especially those aiming to infer quantitatively tissue composition and microstructure.
EFFECT OF INTERNAL HEAT EXCHANGER ON PERFORMANCE OF TRANSCRITICAL C02 SYSTEMS WITH EJECTOR (2004)

The objective of this paper is to explore whether the use of an internal heat exchanger can further improve the performance of transcritical ejector systems with C02 as the working fluid. Instead of using a simplified thermodynamic cycle analysis, the approach taken here is based on a more elaborated and experimentally validated system model for a real mobile air-conditioning system for a typical mid-sized car. However, the modeling of the ejector within the system model was still based on some idealized assumptions. The results indicate that the use of an ejector significantly increases the performance compared to systems without ejector and without IHX. The performance improvement effect of the ejector is reduced when the conventional system has an IHX. However, in comparison to a conventional system with IHX, the utilization of an IHX in the ejector system yields less performance increase than the ejector system not having an IHX. The high-side pressure correlations derived and presented here for all four systems can be used in further experimental and modeling work to maximize the cooling capacity and COP, respectively.