gebhart/patrepeval huggingface dataset:
Synthesis, Structures, and Properties of Strained, Silicon-Bridged [1]Ferrocenophanes with Methylated Cyclopentadienyl Rings (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, Structures, and Properties of Strained, Silicon-Bridged [1]Ferrocenophanes with Methylated Cyclopentadienyl RingsJohn K. Pudelski, Daniel A. Foucher, Charles H. Honeyman, Alan J. Lough, Ian Manners, Stephen Barlow, and Dermot O'HareCite this: Organometallics 1995, 14, 5, 2470–2479Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 May 1995https://pubs.acs.org/doi/10.1021/om00005a051https://doi.org/10.1021/om00005a051research-articleACS PublicationsRequest reuse permissionsArticle Views356Altmetric-Citations67LEARN 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
Neural network methods for error canceling in human-machine manipulation (2005)

A neural network technique is employed to cancel hand motion error during microsurgery. A cascade-correlation neural network trained via extended Kalman filtering was tested on 15 recordings of hand movement collected from 4 surgeons. The neural network was trained to output the surgeon's desired motion, suppressing erroneous components. In experiments this technique reduced the root mean square error (rmse) of the erroneous motion by an average of 39.5%. This was 9.6% greater than the reduction achieved in earlier work, which followed the complementary approach of estimating the error rather than the desired component. Preliminary results are also presented from tests in which training and testing data were taken from different surgeons.
Rheological properties of bimodal polyethylenes produced with silica nanoparticle supported catalysts (2019)

ABSTRACT The rheological properties of bimodal ultra‐high‐molecular‐weight polyethylenes (UHMWPEs) are investigated with an emphasis on the influence of the catalyst support. Bimodal UHMWPEs were produced in a single reactor with double support (DS) and single support (SS) catalyst systems. Dynamic measurements showed that the SS samples have a higher storage modulus at low frequencies than the DS samples with the same weight average molecular weight. After extrusion, the storage modulus of the bimodal DS samples increased to an identical value. The results indicate that the SS sample has a higher homogeneity than the DS sample. The steady‐shear viscosities were measured to determine zero shear viscosities ( η 0 ) of the bimodal samples. The results show that the SS samples follow the relation η 0 = KM w α with α = 3.19 . However, the DS samples exhibit a substantial deviation from this relation especially in the intermediate M w range around 1000 kg mol −1 . The reason for the deviation is attributed to the heterogeneity in DS samples. The results demonstrate that the DS systems do not produce bimodal PEs with an intimate degree of mixing of short and long polymer chains even if silica nanoparticles are used as the support. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47577.
Low-Complexity Self-Homodyne Coherent System for Short-Haul Optical Communications (2022)

A novel self-homodyne coherent transmission system for short-haul optical access networks is demonstrated. By exploiting a simple binary coding technique, a dramatical receiver DSP complexity reduction is obtained. System performance simulations have been experimentally validated.
Bis(pentamethylcyclopentadienyl)actinide chemistry: properties of stable thorium and uranium dialkyls and hydrides (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBis(pentamethylcyclopentadienyl)actinide chemistry: properties of stable thorium and uranium dialkyls and hydridesJuan M. Manriquez, Paul J. Fagan, and Tobin J. MarksCite this: J. Am. Chem. Soc. 1978, 100, 12, 3939–3941Publication Date (Print):June 1, 1978Publication History Published online1 May 2002Published inissue 1 June 1978https://pubs.acs.org/doi/10.1021/ja00480a053https://doi.org/10.1021/ja00480a053research-articleACS PublicationsRequest reuse permissionsArticle Views850Altmetric-Citations137LEARN 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
Livros que celebram o livro ou o prazer do livro e da leitura: A Maior Flor do Mundo (José Saramago), A Biblioteca do Avô (Maria do Rosário Pedreira) e O Canteiro dos Livros (José Jorge Letria) (2019)

Neste artigo, propõe‑se uma análise de três obras de potencial recepção infanto‑juvenil unidas pela tematização do gosto pelo livro e pela leitura. Inscrevendo a literatura na literatura, estes textos constituem‑se como espaços de representação, conhecimento e construção identitária.
Design and performance evaluation of new massively parallel VLSI mask verification algorithms in JIGSAW (1990)

This paper describes JIGSAW, the massively parallel mask checking system that has evolved from our earlier feasibility study on large-scale, fine-grain parallelism in simple mask checking tasks [1]. Unlike previous systems, JIGSAW parallelizes all phases of the checking process. We describe new techniques to handle all-angle geometry, the first massively parallel mask flattening and multi-layer netlist extraction algorithms, and measurements made comparing JIGSAW, running on a Connection Machine, against industry-standard tools. End-to-end speedups, (i.e., from CIF to errors) range from 19 to 58 over DRACULA, with larger masks producing larger speedups.
Human complement activation by smooth and rough Proteus mirabilis lipopolysaccharides (2009)

Regardless of the complement resistance of the P. mirabilis strains, the S1959, R110, and R45 LPSs fragmented C3 and induced C3c neo-antigen exposure. The use of complement-deficient human serum allows the conclusion that the Re-type P. mirabilis R45 LPS fragmented C3 by the antibody-independent classical pathway.
Anion Conducting Multiblock Copolymers (2016)

Anion Exchange Membrane (AEM) fuel cells are a possible route to overcoming fundamental issues with acid-based fuel cells. The issues include the high cost of platinum catalysts, complex water management, and sluggish electrochemical reactions. However, the performance of AEM fuel cells is not as good as that of Proton Exchange Membrane (PEM) fuel cells partially because of the limitations of current anion exchange membranes, such as low ionic conductivity, poor stability at high pH, and high water uptake. A series of partially fluorinated multiblock copoly(arylene ether)s with long head-group tether were synthesized for use in AEM fuel cells and electrolyzers. The multiblock copolymers were synthesized via polycondensation of hydroxyl-terminated oligomers and fluoro-terminated oligomers. The resulting multiblock structure has one hydrophilic block and one hydrophobic block. It was designed so that nanophase-separation occurs and efficient conductive channels are formed with low water uptake. Multiblock copolymers with different block lengths and ion exchange capacity (IEC) were synthesized to maximize ion conductivity and explore the relationship between chemical structures and membrane properties. A non-linear relationship was found between the number of head-groups on a hydrophilic block and the conductivity. Doubling the number of head-groups more than doubled the hydroxide conductivity. Hydroxide conductivity as high as 119 mS/cm at 80°C have been observed with a specific size block size: X 5.4 Y 7 , where X is the hydrophobic block and Y is the hydrophilic block. The hydrophobicity of the backbone has allowed synthesis of polymers with minimal water uptake. The ratio of conductivity-to-water uptake shows that less water is absorbed compared to conventional materials. The number of waters per ion within the polymer is as low as 4. This is reflected in the measurement of the amount of free-water and bound-water. No conductivity loss was observed after soaking the membrane in 1M NaOH solution at 60°C for over 700 hours. Financial support from US Office of the Deputy Assistant Secretary of the Army for Defense Exports and Cooperation (DASA-DE&amp;C) is gratefully acknowledged.
To-Syn-Fuel Project to Convert Sewage Sludge in Value-Added Products (2020)

The H2020 To-Syn-Fuel project aims to demonstrate a sustainable process able to transform waste biomass such as sewage sludge into renewable liquid fuels and hydrogen. The Thermo-Catalytic Reforming TCR® will be implemented in a new process integrated with hydrodeoxygenation (HDO) and pressure swing adsorption (PSA) technologies to convert a wide range of residual biomass into three main products: H2-rich synthesis gas, biochar and a liquid bio-oil that can be upgraded to green fuels capable of being used directly in automotive internal combustion engines without modification, as they fulfil EN fuel standards. In this project, the operational capacity of TCR is designed for up to 500 kg per hour of sewage sludge at a water content of 5-15 %. The main purpose of this unit is the long-term operation of a pre-commercial demonstrator. This is the final step of development before the technology is reaches full commercial scale. This integrated unit is going to be commissioned in 2020 and operated from 2021 for up to 5,000 hours of operation and for the production of more than 200,000 liters of biocrude oil.
Formation of metastable bcc-δ phase and its transformation to fcc-γ in laser powder bed fusion of Fe–Mn–Si shape memory alloy (2021)

The phase transformation behavior from metastable bcc-δ to fcc-γ in Fe–Mn–Si based shape memory alloy processed by laser powder bed fusion was investigated. Primary δ phase formed in this alloy due to the rapid cooling and fast solidification. Bcc-δ to fcc-γ phase transformation occurred when the volumetric energy density was high due to the process-inherent heat treatment effect. Transmission electron microscope studies confirmed Kurdjumov-Sachs orientation relationship between bcc-δ and fcc-γ phases. The analytical results revealed that the phase transformation occurred by a combined displacive-diffusional mechanisms.
Perioperative Complications in 155 Patients Who Underwent Oblique Lateral Interbody Fusion Surgery (2016)

Study Design. A retrospective multicenter survey. Objective. To investigate the perioperative complications of oblique lateral interbody fusion (OLIF) surgery. Summary of Background Data. OLIF has been widely performed to achieve minimally invasive, rigid lumbar lateral interbody fusion. The associated perioperative complications are not yet well described. Methods. The participants were patients who underwent OLIF surgery under the diagnosis of degenerative lumbar diseases between April 2013 and May 2015 at 11 affiliated medical institutions. The collected data were classified into intraoperative and early-stage postoperative (≤1 mo) complications. The intraoperative complications were then subcategorized into organ damage (neural, vertebral, vascular, and others) and other complications, mainly related to instrumental failure. The collected data were also divided and analyzed based on whether the surgeon was certified to perform the surgery and the incidence of complications in the early (April 2013–March 2014) and late stages (April 2014–May 2015) of OLIF introduction. Results. In the 155 included patients, 75 complications were reported (incidence rate, 48.3%). The most common complication was endplate fracture/subsidence (18.7%), followed by transient psoas weakness and thigh numbness (13.5%) and segmental artery injury (2.6%). Almost all these complications were transient, except for three patients who had permanent damage: one had ureteral injury and two had neurological injury. Postoperative complications included surgical site infection (1.9%) and reoperation (1.9%). Whether the primary operator was experienced did not affect the incidence of complications. Regarding the introductory stage, the incidence of complications was 50% in the early stage and 38% in the late stage. Conclusion. The overall incidence of perioperative complications of OLIF surgery reached 48.3%, of which only 1.9% resulted in permanent damage. Our analysis based on surgeon experience indicated that the OLIF procedure could be performed without increasing incidence of complications, under the guidance of experienced supervisors. Level of Evidence: 3
Hyper-immunoglobulin G2 production by B cells from patients with localized juvenile periodontitis and its regulation by monocytes (1996)

Localized juvenile periodontitis (LJP) runs in families, and a predisposition to develop disease appears to be inherited in an autosomal dominant fashion. Patients with LJP have elevated levels of serum immunoglobulin G2 (IgG2), and this is most striking in black LJP patients. We hypothesized that the markedly elevated serum IgG2 levels related to LJP status and race may be attributable to a fundamental difference in the response of black LJP leukocytes. To test this possibility, leukocytes from black LJP patients, black non-periodontitis (NP) controls, and white NP controls were cultured with a nonspecific mitogen (pokeweed mitogen) which stimulates immunoglobulin production. The levels of IgG2 produced were measured using an enzyme-linked immunosorbent assay. The results revealed that the serum IgG2 level differences among black LJP patients and white and black NP subjects were reproducible in peripheral blood leukocytes in vitro. Analysis revealed that B cells from the LJP patients appeared to be predisposed to produce high levels of IgG2. Further analysis supported the concept that the high IgG2 responses of B cells from black LJP patients were regulated by monocytes. Replacing the monocytes in cultures from white NP subjects with LJP monocytes from black patients resulted in production of IgG2 at levels that were comparable with those produced by the LJP B cells from black patients. In short, B cells from black LJP patients produce elevated levels of IgG2 in vitro, and at least part of this elevation appears to be attributable to regulation via the LJP monocytes.
Neutral Macrocycles via Halide-Induced Ring Opening of Binuclear Condensed Intermediates (2000)

A novel halide-assisted approach for opening RhI−thioether-based condensed intermediates into binuclear macrocycles is reported. This novel ring-opening reaction provides entry into a class of neutral binuclear macrocycles prepared via the “weak-link” synthetic strategy.
Motion Hooks for the Multiview Extension of HEVC (2014)

MV-HEVC refers to the multiview extension of High Efficiency Video Coding (HEVC). At the time of writing, MV-HEVC was being developed by the Joint Collaborative Team on 3D Video Coding Extension Development (JCT-3V) of International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC) Moving Picture Experts Group and ITU-T VCEG. Before HEVC itself was technically finalized in January 2013, the development of MV-HEVC had already started and it was decided that MV-HEVC would only contain high-level syntax changes compared with HEVC, i.e., no changes to block-level processes, to enable the reuse of the first-generation HEVC decoder hardware as is for constructing an MV-HEVC decoder with only firmware changes corresponding to the high-level syntax part of the codec. Consequently, any block-level process that is not necessary for HEVC itself but on the other hand is useful for MV-HEVC can only be enabled through so-called hooks. Motion hooks refer to techniques that do not have a significant impact on the HEVC single-view version 1 codec and can mainly improve MV-HEVC. This paper presents techniques for efficient MV-HEVC coding by introducing hooks into the HEVC design to accommodate inter-view prediction in MV-HEVC. These hooks relate to motion prediction, hence named motion hooks. Some of the motion hooks developed by the authors have been adopted into HEVC during its finalization. Simulation results show that the proposed motion hooks provide on average 4% of bitrate reduction for the views coded with inter-view prediction.
Private Discovery with TLS-ESNI (2019)

DNS-SD (DNS Service Discovery) normally discloses information about
both the devices offering services and the devices requesting
services. This information includes host names, network parameters,
and possibly a further description of the corresponding service
instance. Especially when mobile devices engage in DNS Service
Discovery over Multicast DNS at a public hotspot, a serious privacy
problem arises. We propose to solve this problem by developing a
private discovery profile for UDP based transports using TLS, such as
DTLS and QUIC. The profile is based on using the Encrypted SNI
extension. We also define a standalone private discovery service, that
can be combined with arbitrary applications in the same way as DNS-SD.
Physical, Rheological, Functional, and Film Properties of a Novel Emulsifier: Frost Grape Polysaccharide from Vitis riparia Michx (2017)

A novel emulsifier, Frost grape polysaccharide (FGP), isolated from natural exudate of the species Vitis riparia Michx, was physically and rheologically characterized. The determination of the physical, structural, thermodynamic, emulsification, film, and rheological properties of FGP provide essential details for the commercial adoption of this novel plant polysaccharide. FGP is capable of producing exceptionally stable emulsions when compared with the industrially ubiquitous gum arabic (GA). The FGP isolate contained a negligible amount of nitrogen (0.03%), indicating that it does not contain an associated glycoprotein, unlike GA. Solutions of FGP have a high degree of thermostability, displaying no loss in viscosity with temperature cycling and no thermal degradation when held at 90 °C. FGP is an excellent film former, producing high tensile strength films which remain intact at temperatures up to 200 °C. This work identified a number of potential food and pharmaceutical applications where FGP is significantly superior to GA.
High-frequency (139.5 GHz) EPR spectroscopy of the tyrosyl radical in Escherichia coli ribonucleotide reductase (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigh-frequency (139.5 GHz) EPR spectroscopy of the tyrosyl radical in Escherichia coli ribonucleotide reductaseGary J. Gerfen, Brendan F. Bellew, Sun Un, Joseph M. Bollinger Jr., JoAnne Stubbe, Robert G. Griffin, and David J. SingelCite this: J. Am. Chem. Soc. 1993, 115, 14, 6420–6421Publication Date (Print):July 1, 1993Publication History Published online1 May 2002Published inissue 1 July 1993https://pubs.acs.org/doi/10.1021/ja00067a071https://doi.org/10.1021/ja00067a071research-articleACS PublicationsRequest reuse permissionsArticle Views330Altmetric-Citations110LEARN 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
Capillary electrophoresis: theory, teaching approach and separation of oligosaccharides using indirect UV detection (2000)

Abstract Capillary electrophoresis, a recent analytical method (the first commercial instrument was sold just 10 years ago), offers an efficient alternative means compared to other current separation techniques. Due to a wide application range, this method is becoming more and more important among analytical laboratories. Thus, introductory lectures on this analytical technique are of particular interest. Moreover, the use of capillary electrophoresis aids in the understanding of the numerous parameters which influence electrophoretic migrations, such as ion mobilities, electrical field, pH, pK a , joule heating and buffering capacity. This article presents the theory of capillary electrophoresis and various steps of an analysis of four carbohydrates using this technique. This presentation of the data is similar to the way the students, to whom this analysis was asked, presented theirs. Representative results obtained by four students out of 100 are shown. © 2000 IUBMB. Published by Elsevier Science Ltd. All rights reserved.