gebhart/patrepeval huggingface dataset:
High‐resolution seismic imaging of a deep gas reservoir from azimuthal offset VSP, Saudi Arabia (2003)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2003High‐resolution seismic imaging of a deep gas reservoir from azimuthal offset VSP, Saudi ArabiaAuthors: John C. OwusuEd L. NebrijaJohn C. FitzmauriceBhoopal R. NainiJohn C. OwusuSaudi Aramco, Ed L. NebrijaSaudi Aramco, John C. FitzmauriceSaudi Aramco, and Bhoopal R. NainiSaudi Aramcohttps://doi.org/10.1190/1.1817802 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1817802FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2003ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2003 Pages: 2452 publication data© 2003 Copyright © 2003 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 03 Jan 2005 CITATION INFORMATION John C. Owusu, Ed L. Nebrija, John C. Fitzmaurice, and Bhoopal R. Naini, (2003), "High‐resolution seismic imaging of a deep gas reservoir from azimuthal offset VSP, Saudi Arabia," SEG Technical Program Expanded Abstracts : 2270-2273. https://doi.org/10.1190/1.1817802 Plain-Language Summary PDF DownloadLoading ...
The SpeB virulence factor of <i>Streptococcus pyogenes</i>, a multifunctional secreted and cell surface molecule with strepadhesin, laminin‐binding and cysteine protease activity (2001)

The interactions between pathogenic bacteria and the host need to be resolved at the molecular level in order to develop novel vaccines and drugs. We have previously identified strepadhesin, a novel glycoprotein-binding activity in Streptococcus pyogenes, which is regulated by Mga, a regulator of streptococcal virulence factors. We have now identified the protein responsible for the strepadhesin activity and find that (i) strepadhesin activity is carried by SpeB, streptococcal pyrogenic exotoxin with cysteine protease activity; (ii) SpeB carries laminin-binding activity of the bacteria; and (iii) SpeB is not only a secreted molecule but also occurs unexpectedly tightly bound to the bacterial cell surface. Thus, in contrast to the previous view of SpeB as mainly an extracellular protease, it is also present as a streptococcal surface molecule with binding activity to laminin and other glycoproteins.
Biotechnology of Woody Environmental Crops (1991)

Scientists working in woody environmental plant improvement have not taken advantage of new biotechnologies available to them. Such technologies could provide numerous opportunities for rapid genetic improvement. The meaning of the term biotechnology is evolving; for purposes of simplicity, it will be defined here as the following three processes: in vitro genetic selection, in vitro mutagenesis, and genetic engineering. These processes can be used to select genetically variant or mutant cells or to insert DNA into cells to produce genetically improved plants. In vitro genetic selection, often termed “somaclonal selection” (Larkin and Scowcroft, 1981), enables one to use techniques to select genetically variant cells and verify genetic variation in regenerated plants by biochemical or molecular techniques. The use of cell and tissue culture selection procedures results in regenerants with genotypic variation that originates from a single genotype. Genetic variation may exist within genetically heterogenous cell cultures either as pre-existing potential for genetic variation or as potential for genetic variability induced by the culture process. Selected cells can be regenerated and resultant variant plants can be tested for stability of the genetic alteration. Mutagenesis, in the context of plant biotechnology, is a classical means of altering plant genomes by applying either radiation or chemicals, coupled with regeneration of genetically altered plants in vitro. Examples of mutagenic agents are gamma rays, X-rays, ethyl methanesulfonate (EMS), 2,4-dichlorophenoxyacetic acid (2,4-D), and colchicine. Plants that result from use of these mutagens usually have random genetic mutations; the genetic mutations cannot be targeted. The applicability of chemical and physical mutagenesis is limited in biotechnology because lack of targeting results in low selection efficiency for a given target. In addition, many undesirable genetic characteristics may also be obtained by mutagenesis. Genetic engineering techniques often use recombinant DNA that is inserted into cells by Agrobacterium -mediated transfer, microprojectile bombardment (biolistics), electric current (electroporation), microinjection, and polyethylene glycol-mediated osmotic insertion. Protoplasts may be needed for the latter three techniques to enable DNA to cross the plasmalemma. Plant regeneration and clonal micropropagation are important requirements for using biotechnologies. These processes use tissue culture techniques to successfully apply biotechnologies to produce genetically altered plants. Plants can be regenerated by shoot organogenesis or somatic embryogenesis and then clonally micropropagated, usually by proliferation of axillary buds from shoot cultures. Micropropagation has been used successfully for commercial purposes with woody environmental crops such as Betula, Syringa, Malus, Prunes, Pyrus, Kalmia, Rhododendron, Rosa, and Amelanchier spp. (McCown, 1989). Many other species are produced on a smaller scale for profitable niches in national and regional markets.
Correlation of Short Form-36 and Disability Status with Outcomes of Arthroscopic Acetabular Labral Debridement (2005)

The Short Form-36 demonstrated good correlation with the modified Harris hip score for measuring outcomes after arthroscopic partial limbectomy. Arthroscopic debridement yielded a high percentage of good results when patients undergoing disability evaluations were excluded. Disability status may be a negative predictor of success after hip arthroscopy.
Frontline autologous stem cell transplantation in high‐risk peripheral T‐cell lymphoma: a prospective study from The Gel‐Tamo Study Group (2007)

Early salvage therapy for patients with high-risk aggressive nodal PTCL that do not achieve CR after three courses of chemotherapy and ASCT frontline consolidation for chemosensitive patients may improve treatment outcome.
pH-independent retrograde targeting of glycolipids to the Golgi complex (1998)

A small fraction of the molecules internalized by endocytosis reaches the Golgi complex through a retrograde pathway that is poorly understood. In the present work, we used bacterial toxins to study the retrograde pathway in Vero cells. The recombinant B subunit of verotoxin 1B (VT1B) was labeled with fluorescein to monitor its progress within the cell by confocal microscopy. This toxin, which binds specifically to the glycolipid globotriaosyl ceramide, entered endosomes by both clathrin-dependent and -independent pathways, reaching the Golgi complex. Once internalized, the toxin-receptor complex did not recycle back to the plasma membrane. The kinetics of internalization and the subcellular distribution of VT1B were virtually identical to those of another glycolipid-binding toxin, the B subunit of cholera toxin (CTB). Retrograde transport of VT1B and CTB was unaffected by addition of weak bases in combination with concanamycin, a vacuolar-type ATPase inhibitor. Ratio imaging confirmed that these agents neutralized the luminal pH of the compartments where the toxin was located. Therefore, the retrograde transport of glycolipids differs from that of proteins like furin and TGN38, which require an acidic luminal pH. Additional experiments indicated that the glycolipid receptors of VT1B and CTB are internalized independently and not as part of lipid "rafts" and that internalization is cytochalasin insensitive. We conclude that glycolipids utilize a unique, pH-independent retrograde pathway to reach compartments of the secretory system and that assembly of F-actin is not required for this process.
Tissue-engineered fibroin scaffolds for ocular tissue reconstruction (2012)

The silk protein fibroin (Bombyx mori) provides a potential substrate for use in ocular tissue reconstruction. We have previously demonstrated that transparent membranes produced from fibroin support cultivation of human limbal epithelial (HLE) cells (Tissue Eng A. 14(2008)1203-11). We extend this body of work to studies of limbal mesenchymal stromal cell (L-MSC) growth on fibroin. Also, we investigate the ability to produce a fibroin dual-layer scaffold with an upper HLE layer and lower L-MSC layer...
Inversion stratigraphique multicomposante avant sommation (2005)

This thesis present the extension of monocomponent seismic prestack data stratigraphic inversion method to multicomponent data, with the objective of improving the determination of reservoir elastic parameters. In addiction to the PP pressure waves, the PS converted waves proved their interest for imaging under gas clouds ; and their potential is highly significant for the characterization of lithologies, fluids, fracturations. . . Nevertheless the simultaneous use of PP and PS data remains problematic because of their different the time scales. To jointly use the information contained in PP and PS data, we propose a method in three steps: first, monocomponent stratigraphic inversions of PP then PS data; second, estimation of the PP to PS time conversion law; third, multicomponent stratigraphic inversion. For the second point, the estimation of the PP to PS conversion law is based on minimizing the difference between the S impedances obtained from PP and PS monocomponent stratigraphic inversion. The prestack monocomponent stratigraphic inversions was adapted to the case of multicomponent data by leaving each type of data in its own time scale in order to avoid the distortion of the seismic wavelet. The results obtained on a realistic synthetic PP-PS case show on one hand that determining PP to PS conversion law (from the monocomponent inversion results) is feasible, and on the other hand that the joint inversion of PP and PS data with this conversion law improves the results compared to the monocomponent inversion ones. Although this is presented within the framework of the PP and PS multicomponent data, the developed methodology adapts directly to PP-SS data for example.
Photocyclization of terpenoid polyalkenes upon electron transfer to a triphenylpyrylium salt A time-resolved study (1997)

Photoinduced electron transfer to 2,4,6-triphenylpyrylium tetrafluoroborate (P + BF 4 - ) from terpenoid polyalkenes bearing electron-withdrawing substituents, e.g. 2,6-dimethylhepta-1,5-diene-1,1-dicarbonitrile (D-1) and homologues thereof (D-2, D-3) as well as from other donors, such as 1,1′-biphenyl (BP) and trans-stilbene, has been studied in solution by laser flash photolysis. The main transient in the presence of D-n (n=1, 2, 3) is the triphenylpyranyl radical (P ). Fluorescence quenching of 1* P + by D-n in acetonitrile occurs with rate constants of (0.6–1.7)×10 10 dm3 mol -1 s -1 , whereas those for quenching of the triplet state ( 3* P + ) are significantly smaller, (0.5–3)×10 9 dm3 mol -1 s -1 . The corresponding half-concentrations for fluorescence and triplet quenching are [D] 1/2 =20–40 and 0.02–0.2 mmol dm -3 , respectively. BP and trans-stilbene were used as donors since their radical cations can be detected spectroscopically (λ max =660 and 460 nm, respectively). In addition, the role of BP as a co-donor was examined; the [D] 1/2 values for the quenching of its radical cation are similar to those for the quenching of 3* P + . These findings demonstrate the existence of the polyalkene radical cation (e.g. D-1 + ), although it is not directly detectable, even upon photoionization (λ exc =248 nm). The quantum yields of photodecomposition of D-1 and formation of photoproducts were measured in acetonitrile in the presence of either water or methanol. P + is not directly restored from P . Two mechanisms for electron back-transfer involving the dimer P 2 are proposed and consequences for preparative work are discussed.
Optimistic Byzantine agreement (2003)

The paper considers the Byzantine agreement problem in a fully asynchronous network, where some participants may be actively malicious. This is an important building block for fault-tolerant applications in a hostile environment, and a non-trivial problem: An early result by Fischer et al. (1985) shows that there is no deterministic solution in a fully asynchronous network subject to even a single crash failure. The paper introduces an optimistic protocol that combines the two best known techniques to solve agreement, randomization and timing. The timing information is used only to increase performance; safety and liveness of the protocol are guaranteed independently of timing. Under certain "normal" conditions, the protocol decides quickly and deterministically without using public-key cryptography, approximately as fast as a timed protocol subject to crash failures does. Otherwise, a randomized fallback protocol ensures safety and liveness. For this, we present an optimized version of the randomized Byzantine agreement protocol of Cachin et al. (2000), which is computationally less expensive and not only tolerates malicious parties, but also some loss of messages; it might therefore be of independent interest.
Mixed-valent cations of dinuclear chromium arene complexes: electrochemical, spectroscopic, and structural considerations (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMixed-valent cations of dinuclear chromium arene complexes: electrochemical, spectroscopic, and structural considerationsNorman Van Order Jr., William E. Geiger, Thomas E. Bitterwolf, and Arnold L. RheingoldCite this: J. Am. Chem. Soc. 1987, 109, 19, 5680–5690Publication Date (Print):September 1, 1987Publication History Published online1 May 2002Published inissue 1 September 1987https://pubs.acs.org/doi/10.1021/ja00253a019https://doi.org/10.1021/ja00253a019research-articleACS PublicationsRequest reuse permissionsArticle Views249Altmetric-Citations81LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Extreme Resistance is Epistatic to Hypersensitive Resistance to Potato Virus YO in a<i>Solanum tubersum subsp. Andigena</i>-Derived Potato Genotype (1994)

Resistance to potato virus Y (PPY o ) was examined in diploid potato progeny from a cross of two diploid, interspecific hybrids, 2X(V-2)7 (extremely resistant ot PVY o ) and 84.191.30 (susceptible to PVY o ). The pedigree of 2X(V-2)7 includes Solanum tuberosum subsp. andigena (extremely resistant to PVY o ) and S. t. tuberosum (susceptible to PVY o ). Following inoculation, 34 F 1 progeny (Ry/ry Ny/ny or Ry/ny ny/ny) and 2X(V-2)7 (Ry/ry Ny/ny) remained symptomless and no virus was detected by ELISA, which is characteristic of extreme resistance controled by the Ry adg gene
HLA-A*03:01 is associated with increased risk of fever, chills, and more severe reaction to Pfizer-BioNTech COVID-19 vaccination (2021)

Abstract COVID-19 vaccines are safe and highly effective, but some individuals experience unpleasant reactions to vaccination. As the majority of adults in the US have received a COVID-19 vaccine this year, there is an unprecedented opportunity to study the genetics of reactions to vaccination via surveys of individuals who are already part of genetic research studies. Here, we have queried 17,440 participants in the Helix DNA Discovery Project and Healthy Nevada Project about their reactions to COVID-19 vaccination. Our GWAS identifies an association between severe difficulties with daily routine after vaccination and HLA-A*03:01. This association was statistically significant only for those who received the Pfizer-BioNTech vaccine (BNT162b2; p=4.70E-11), but showed a trending association in those who received the Moderna vaccine (mRNA-1273; p=0.005) despite similar sample sizes for study. In Pfizer-BioNTech recipients, HLA-A*03:01 was associated with a two-fold increase in risk of severe vaccine reactions. The effect was consistent across ages, sexes, and whether the person had previously had a COVID-19 infection. The reactions experienced by HLA-A*03:01 carriers were driven by associations with chills, fever, fatigue, and in general feeling unwell.
[Immunochemical analysis of human monoclonal IGM with antibody cold agglutinin activity during Mycoplasma pneumoniae infection]. (1997)

Mycoplasma pneumoniae (MP) infection is associated with the emergence of anti-I cold agglutinins of IgM isotype, rarely complicated by hemolytic anemia. The mechanism by which the autoimmune disease occurs is still considerably controversed. We describe here a case of MP infection complicated by severe autoimmune hemolytic anemia with monoclonal anti-I IgM. IgM anti-I antibodies were purified by adsorption-elution on OI+ red cells. The red blood cell antibodies were found to be tightly associated with IgG and anti-MP specificity probably as immune complexes. The significance of these results is discussed.
ChemInform Abstract: Diastereoselective Synthesis of the Lactone Portion of Compactin and Mevinolin. (1991)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Phagocytosis and degradation of DNA‐anti‐DNA complexes by human phagocytes. II. Influence of the size of the complexes (1981)

The influence was studied of the size of DNA-anti-DNA complexes on their capacity to induce phagocytosis and degradation by monocytes and neutrophils from human blood. An estimate of the size of the complexes was obtained by precipitation analysis, sucrose-gradient velocity sedimentation and filtration over Nucleopore filters. The results show that only those complexes are processes that precipitate in 15 min at 3000 x g. These complexes have an S value of more than 25000 and a diameter of more than 0.4 micrometer. Likewise, tetanus-anti-tetanus complexes also had to be precipitable in 15 min at 3000 x g to be processed by the phagocytes.
On avoiding saturation in the control of vehicular platoons (2004)

We investigate some fundamental limitations and tradeoffs in the control of vehicular platoons. These systems are of considerable practical importance as they represent an example of systems on lattices in which different units are dynamically coupled only through feedback controls. We demonstrate that in very long platoons, to avoid large position, velocity, and control amplitudes, one needs to explicitly account for the initial deviations of vehicles from their desired trajectories. We further derive explicit constraints on feedback gains - for any given set of initial conditions - to achieve desired position transients without magnitude and rate saturation. These constraints are used to generate the trajectories around which the states of the platoon system are driven towards their desired values without the excessive use of control effort. All results are illustrated using computer simulations of platoons containing a large number of vehicles.
Automatic acquisition of context-based images templates for degraded character recognition in scene images (2002)

Proposes a method for adaptively acquiring templates for degraded characters in scene images. Characters in scene images are often degraded because of poor printing and viewing conditions. To cope with the degradation problem, we proposed the idea of "context-based image templates" which include neighboring characters of parts thereof and so represent more contextual information than single-letter templates. However, our previous method manually selects the learning samples to make the context-based image templates and is time-consuming. Therefore, we attempt to make the context-based image templates automatically from single-letter templates and learning text-line images. The context-based image templates are iteratively created using the k-nearest neighbor rule. Experiments with 3,467 alpha-numeric characters in nine bookshelf images show that the high recognition rates for test samples possible with this method asymptotically approach those achieved with manual selection.
Commissioning of the cryogenic hydrogen system in J-PARC: first cool-down operation with helium (2009)

In J-PARC, an intense spallation neutron source (JSNS) driven by a 1-MW proton beam has been constructed. A cryogenic hydrogen system, which provides supercritical hydrogen at the temperature of around 20 K and the pressure of 1.5 MPa to the moderators and absorbs nuclear heating in the moderators, has been completed in November 2007 and the commissioning has been started. As the first step, the primary cryogenic operations were conducted by using helium, instead of hydrogen. We confirmed the soundness of the system at operation temperature, and established the operation method of the cool-down process. The cryogenic tests have been successfully completed without problems.
ADULT T CELL LEUKEMIA HISTOLOGICAL CLASSIFICATION AND CHARACTERISTICS (1979)

Adult T cell leukemia was classified into two distinct types, monomorphic and pleomorphic, according to their histological and cytological features. The former type is composed of uniform neoplastic cells with round or slightly indented nuclei without any marked deformation. The latter type, on the other hand, occupies a unique position in lymphocytic leukemias with the following characteristics: a) onset in adulthood, b) an acute and subacute course, c) well-differentiated T cell origin of the neoplastic cells, d) pleomorphism of the neoplastic cells with markedly deformed nuclei, e) diffuse proliferation of the neoplastic cells without nodular pattern, f) histologically heterogeneous features of lymph nodes frequently admixing a cluster of normal lymphocytes, proliferation of macrophages and dendritic cells, and well-developed high endothelium venules, g) high incidence of skin lesions due to the infiltration of neoplastic cells, and h) exclusively limited localization of patients' birth places.
Identification of a gene for the alpha-subunit of RNA polymerase at the str-spc region of the Escherichia coli chromosome. (1975)

A structural gene for the alpha-subunit of RNA polymerase (nucleosidetriphosphate:RNA nucleotidyltransferase; EC 2.7.7.6) has been identified and mapped between spcA and trkA, near 64 min on the E. coli chromosome. It appears to be coordinately expressed and possibly cotranscribed with the genes for ribosomal proteins S11, S4, and L17.
Mikrotomie von Polymerwerkstoffen Teil 2: Anwendung der Mikrotomie / Microtomy of Polymeric Materials Part 2: Application of Microtomy (1989)

Article Mikrotomie von Polymerwerkstoffen Teil 2: Anwendung der Mikrotomie / Microtomy of Polymeric Materials Part 2: Application of Microtomy was published on November 1, 1989 in the journal Practical Metallography (volume 26, issue 11).