gebhart/patrepeval huggingface dataset:
Chemistry of o-xylidene–metal complexes. Part 1. o-Xylidene-magnesium reagents as metallocyclic precursors and synthesis of [Pt(CH<sub>2</sub>C<sub>6</sub>H<sub>4</sub>CH<sub>2</sub>-o)(cod)](cod = cyclo-octa-1,5-diene); the X-ray crystal structure of the macrometallocycle [{Mg(CH<sub>2</sub>C<sub>6</sub>H<sub>4</sub>CH<sub>2</sub>-o)(C<sub>4</sub>H<sub>8</sub>O)<sub>2</sub>}<sub>3</sub>] (1982)

A high-yield synthesis of a tetrahydrofuran (thf) solution of the di-Grignard reagent (A) derived from o-bis(chloromethyl)benzene is described, as well as that of an analogue obtained from 1,2-bis(chloromethyl)-4,5-dimethylbenzene. Cooling (A) to ca. –40 °C yields the colourless chloride-free Mg(CH2C6H4CH2-o)(thf) of unknown structure, whereas at ambient temperature a concentrated solution (> ca. 0.1 mol dm–3) slowly (days) deposits colourless needles of [{Mg(CH2C6H4CH2-o)(thf)2}3]. A single-crystal X-ray structure determination of the latter (R= 0.054 for 1 117 ‘observed’ reflections at 295 K) shows it to be a trimer. Crystals are orthorhombic, space group F2dd. with a= 24.706(8), b= 8.948(3), c= 44.315(9)Å, and Z= 8; the trimeric unit lies on a crystallographic two-fold axis. Each of the three magnesiums is bridged to the other two by a –CH2C6H4CH2–-o ligand, the pseudo-tetrahedral co-ordination about each magnesium atom being completed by a pair of thf molecules. The utility of the di-Grignard reagent as a general metallocycle precursor is illustrated by the synthesis of [graphic omitted] (cod = cycle-octa-1,5-diene) from [Ptl2(cod)]. In contrast [PtCl2(dppe)] with [{o-C6H4(CHSiMe3)2}{Li(tmen)}2](dppe = Ph2PCH2CH2PPh2, tmen = Me2NCH2CH2NMe2) affords [Pt(dppe)2].
Propagation of Dengue Viruses in Murine Cell Cultures (1981)

Dengue viruses were cultivated in Balb 3T12-3 cells, a continuous line of cells derived from mouse embryo cell cultures. Optimal serum concentrations were determined for maximal kinetics of virus replication. All four types of dengue viruses replicate in these cells, and peak virus titers were obtained by 72 hours post-infection. The successful growth of dengue viruses in a continuous line of mouse cells should allow for more extensive studies examining the cellular immune response to dengue virus infection in murine models.
Gloss Measurements on Fabrics (1950)

The gloss or luster of a surface is essentially a subjectively evaluated property which is re lated to the manner in which the surface reflects light falling on it. Although the impression or sensation of glossiness is a matter of common experience, measurement of this property in physical terms and correlation of the measurements with its psychological aspects are extremely difficult. The most satisfactory physical measurement involves the use of a goniophotometer, an instrument which measures the amount of light reflected from a surface at various angles. Curves showing intensity of reflected light vs. the scanning angle exhibit a peak at the so- called specular angle for surfaces rated as being of high gloss. Surfaces of more complex struc ture, such as those of fabrics, show a displacement of maximum reflectance from the specular angle; the displacement is related to the angle of the incident light. The curve shape is char acteristic for different fabrics. This article describes the experimental measurement of reflectance by means of a goniopho tometer for a group of fabrics. The results are presented in the form of curves, computed "gloss indexes" or "gloss numbers," and visual ratings by different observers.
Di‐ <i>n</i> ‐butyldivinyltin (2003)

Abstract Di‐ n ‐butyldivinyltin product: di‐ n ‐butyldivinyltin
Prediction of spectacle-corrected visual acuity using videokeratography. (1999)

Multiple linear regression resulted in the best prediction of spectacle-corrected visual acuity, giving notable improvement in prediction of spectacle-corrected visual acuity as compared to the predicted corneal acuity available in the EyeSys System 2000.
The meaning of living close to a person with Alzheimer disease (2016)

Only a few studies explore the lifeworld of the spouses of persons affected by early-onset Alzheimer disease (AD). The aim of this study is to explore the lifeworld of spouses when their partners are diagnosed with AD, focusing on spouses' lived experience. The study employs an interpretative phenomenological framework. Ten in-depth interviews are performed. The results show that spouses' lifeworld changes with the diagnosis. They experience an imprisoned existence in which added obligations, fear, and worry keep them trapped at home, both physically and mentally. In their longing for freedom, new strategies and attitudes helps the spouses to create an extended "lived space" with their partner. The findings stress the importance of paying attention to the lifeworld of spouses and making clinical recommendations on this basis. Most importantly, the lifeworld perspective has implications for how we understand what care is. We hope to challenge all different healthcare professionals and invite them to discuss the deep meaning of care and the definition of being professional in encounters with vulnerable others from a lifeworld perspective.
Crystals from Portland Cement Hydration (1943)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystals from Portland Cement HydrationC. M. Sliepcevich, L. Gildart, and D. L. KatzCite this: Ind. Eng. Chem. 1943, 35, 11, 1178–1187Publication Date (Print):November 1, 1943Publication History Published online1 May 2002Published inissue 1 November 1943https://pubs.acs.org/doi/10.1021/ie50407a011https://doi.org/10.1021/ie50407a011research-articleACS PublicationsRequest reuse permissionsArticle Views109Altmetric-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 options Get e-Alerts
Creep-Fatigue Problems in Electricity Generating Plant (1979)

AbstractVarious components of boilers and turbines are subjected to creep-fatigue loading which can cause cracking and, occasionally, lead to catastrophic failure. To better understand the problem, relevant fatigue data are required which should, ideally, be obtained from tests incorporating cyclic temperature and strain.High Temperature Low Cycle Fatigue is reviewed briefly with particular emphasis on Thermal Fatigue, i.e. where strain cycling results from and is accompanied by temperature changes.Some results on 2–1/4 Cr–1Mo steel are presented which show that the fatigue resistance under simulated operational conditions is significantly lower than under the isothermal conditions often used to generate design data. Suggestions for further research are put forward. Résumé Diverses parties constitutives de chaudières et de turbines sont soumises à des contraintes de fatigue en condition de flu age, qui peuvent en trainer la fissuration et occasionellement, conduire à une rupture catastrophique. Une meilleure compréhension du probléme implique l'obtention de données appropriées sur la fatigue; ces données devraient être obtenues à partir d'essais cycliques faisant intervenir déformation cyclique et température.Une bréve revue du processus de Fatigue oligocyclique à haute température est effectuée; elle porte en particulier sur le cas de Fatigue thermique dans lequelle cyclage de déformation provient et est accompagné de changements de température.Quelques résultats concernant l'acier 2–1/4 Cr–1 Mo montrent que la résistance à la fatigue en conditions opératoires simulées est nettement plus faible que celle obtenue en conditions isothermes qui est couramment utilisee pour ca1culer les installations. Quelques idées pour une recherche ultèrieure sont suggérées.
Isotopic Determination and Optimum Reaction Conditions of Pantothenic Acid Synthetase (1973)

Journal Article Isotopic Determination and Optimum Reaction Conditions of Pantothenic Acid Synthetase Get access Kazutaka Miyatake, Kazutaka Miyatake Department of Agricultural Chemistry, , University of Osaka Prefecture, Sakai, Osaka 591 Search for other works by this author on: Oxford Academic Google Scholar Yoshihisa Nakano, Yoshihisa Nakano Department of Agricultural Chemistry, , University of Osaka Prefecture, Sakai, Osaka 591 Search for other works by this author on: Oxford Academic Google Scholar Shozaburo Kitaoka Shozaburo Kitaoka Department of Agricultural Chemistry, , University of Osaka Prefecture, Sakai, Osaka 591 Search for other works by this author on: Oxford Academic Google Scholar Agricultural and Biological Chemistry, Volume 37, Issue 5, 1 May 1973, Pages 1205–1207, https://doi.org/10.1080/00021369.1973.10860816 Published: 01 May 1973 Article history Received: 16 October 1972 Published: 01 May 1973
A challenge to establish in vitro anti-thrombogenic test methodology for artificial organs using a novel air-contactless pulsatile simulator (2004)

The Japan Soolety of Meohanloal Englneers 121
Three new Lithobiomorphous Chilopods from Washington and Oregon (1928)

(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
An ASIC design for real-time image processing in industrial applications (1995)

In this paper we present the design of an ASIC chip for real-time image processing in industrial applications. The chip is a module of a system for the automatic surface inspection of mechanical parts: it implements the feed-forward phase of a neural network model (multi-layer perceptron with local connections) tuned to the specific application. The design has been performed in 0.7 /spl mu/m CMOS technology using an approach based on high level transformations of the VHDL specifications. Special emphasis was given to achieve real-time speed. As a result, the architecture is based on a deep pipeline and the performance is beyond the real-time specifications. >
Quality management science in clinical chemistry: a dynamic framework for continuous improvement of quality (1990)

Current quality assurance approaches will not be adequate to satisfy the needs for quality in the next decade. Quality management science (QMS), as evolving in industry today, provides the dynamic framework necessary to provide continuous improvement of quality. QMS emphasizes the importance of defining quality goals based on the needs and expectations (implied needs) of customers. The laboratory can develop customer-friendly goals and measures of quality by recognizing that customers' experiences are represented by a totality of results. Quality goals and measures are best communicated as "total performance" by specifying a limit and percentile of the distribution, rather than a mean and standard deviation. Application of quality goals within the laboratory will usually require partitioning the total performance goal into components and translating those components into specifications to guide the operation and management of production processes. QMS also extends beyond technical processes to people processes and provides guidance for improving the quality of worklife and caring for the laboratory's most essential resource--our people.
Efficacy of the InvictDetectTM Immunostrip® to Taxonomically Identify the Red Imported Fire Ant, Solenopsis invicta, Using A Single Worker Ant (2020)

The early detection and identification of the red imported fire ant <i>Solenopsis invicta</i> are crucial to intercepting and preventing it from becoming established in new areas. Unfortunately, the visual identification of fire ants to species is difficult and ant samples must often be couriered to an expert for positive identification, which can delay control interventions. A lateral flow immunoassay that provides a rapid and portable method for the identification of <i>S. invicta</i> ants was developed and commercialized, and it is available from Agdia, Inc. under the trade name InvictDetect<sup>TM</sup>. While the test was 100% accurate when using the recommended minimum sample of three ant workers, InvictDetect<sup>TM</sup> was field tested for the first time while using homogenates prepared from single <i>S. invicta</i> workers to determine the effectiveness of the method under these non-recommended conditions. Disregarding social form, the false negative rate was 25.5% for an initial single worker ant test and 10% after a repeat test was performed. The InvictDetect<sup>TM</sup> false negative response was independent of worker weight. Though InvictDetect<sup>TM</sup> requires a minimum of three worker ants, the test improves upon current identification methods because it can be conducted in the field, be completed in 10-30 min, and requires no special training or expertise.
A resolution scalable temperature sensor for wireless systems (2016)

A temperature sensor comprising two ring oscillators and a frequency counter for wireless systems is presented in this paper which includes the feature of resolution scaling. The sensing element is embedded into the architecture of the ring oscillators. The sensor IC is fabricated on 130 nm IHP SG13C technology and occupies an area of 0.02 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . Experimental results show a resolution of 0.009 K/LSB to 0.6 K/LSB according to a conversion rate of 140 Hz to 9 kHz within a temperature range of -25 °C to 125 °C. The total power consumption is 160 μW at 1.2 V supply voltage. The basic of operation, the design and evaluation of the chip are presented.
Effects of Temperature and Nutrition on Juvenile Hormone Titers of <I>Coptotermes formosanus</I> (Isoptera: Rhinotermitidae) (2005)

Abstract Colony organization via caste specialization in the Formosan subterranean termite, Coptotermes formosanus Shiraki, as in other species of termites, seems to be influenced by external factors such as nutrition and temperature. Here, we report on the influence of nutrition and temperature and the associated juvenile hormone levels on the regulation of the soldier caste. Two nutritional levels of food sources or five different temperatures were provided to C. formosanus workers in the laboratory. Juvenile hormone titers of these workers were monitored on 0, 12, 24, 36, 48, and 60 d after treatment. Termite survival and soldier-to-worker proportions also were recorded at each sample date. Workers fed a high-quality food source produced significantly more soldiers and this was associated with high worker juvenile hormone (JH) titers. JH titers in workers maintained at 20 and 36°C remained constant throughout the observational period with no presoldier or soldier formation. Under 24, 28, and 32°C temperature regimes, JH titers in workers climbed to a peak at day 48 and then sharply dropped at day 60 when soldier proportion increased to a specific value. At each sample date, JH titers in workers demonstrated a positive and statistically significant relationship to temperatures within the range of 24–32°C, but upon inclusion of temperatures below 24 and above 32°C, the correlation is no longer significant. The results show that favorable extrinsic conditions of temperature and nutrition allow for a higher soldier proportion threshold through the regulation of JH levels and caste differentiation in workers.
Metamaterials with Giant Optical Activity (2007)

We demonstrate a novel type of chiral photonic metamaterial based on pairs of physically separated mutually twisted planar metal patterns. It exhibits very strong gyrotropy (2500deg/mm) in the visible, near-infrared and microwave spectral ranges.
The Myc–miR-17∼92 Axis Blunts TGFβ Signaling and Production of Multiple TGFβ-Dependent Antiangiogenic Factors (2010)

Abstract c-Myc stimulates angiogenesis in tumors through mechanisms that remain incompletely understood. Recent work indicates that c-Myc upregulates the miR-17∼92 microRNA cluster and downregulates the angiogenesis inhibitor thrombospondin-1, along with other members of the thrombospondin type 1 repeat superfamily. Here, we show that downregulation of the thrombospondin type 1 repeat protein clusterin in cells overexpressing c-Myc and miR-17∼92 promotes angiogenesis and tumor growth. However, clusterin downregulation by miR-17∼92 is indirect. It occurs as a result of reduced transforming growth factor-β (TGFβ) signaling caused by targeting of several regulatory components in this signaling pathway. Specifically, miR-17-5p and miR-20 reduce the expression of the type II TGFβ receptor and miR-18 limits the expression of Smad4. Supporting these results, in human cancer cell lines, levels of the miR-17∼92 primary transcript MIR17HG negatively correlate with those of many TGFβ-induced genes that are not direct targets of miR-17∼92 (e.g., clusterin and angiopoietin-like 4). Furthermore, enforced expression of miR-17∼92 in MIR17HGlow cell lines (e.g., glioblastoma) results in impaired gene activation by TGFβ. Together, our results define a pathway in which c-Myc activation of miR-17∼92 attenuates the TGFβ signaling pathway to shut down clusterin expression, thereby stimulating angiogenesis and tumor cell growth. Cancer Res; 70(20); 8233–46. ©2010 AACR.
Local and internuclear carbonyl scrambling in pentacarbonyl-7H-indenediiron (C9H8)Fe2(CO)5, and tetracarbonyl-7H-indene(triethylphosphine)diiron (C9H8)Fe2(CO)4(PEt3) (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLocal and internuclear carbonyl scrambling in pentacarbonyl-7H-indenediiron (C9H8)Fe2(CO)5, and tetracarbonyl-7H-indene(triethylphosphine)diiron (C9H8)Fe2(CO)4(PEt3)F. Albert. Cotton and Brian E. HansonCite this: Inorg. Chem. 1977, 16, 8, 1861–1865Publication Date (Print):August 1, 1977Publication History Published online1 May 2002Published inissue 1 August 1977https://pubs.acs.org/doi/10.1021/ic50174a007https://doi.org/10.1021/ic50174a007research-articleACS PublicationsRequest reuse permissionsArticle Views59Altmetric-Citations17LEARN 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
Induction of Somatic Embryogenesis in Carrot by Osmotic Stress. (1993)

Segments of cotyledon and apical tip taken from 1-week-old seedlings of Daucus carota L. were cultured for 3 weeks on hormone-free Murashige and Skoog's (MS) medium containing high amounts of sucrose (0.3-0.7M) and then transferred to the same medium with lower sucrose concentration (0.09M). Somatic embryos were formed from the segments 3 to 6 weeks after the transfer. On the other hand, hypocotyl segments given the same treatment did not produce somatic embryos. When the primary culture medium contained 0.61M mannitol and 0.09M sucrose, cotyledon segments and apical tip segments also produced somatic embryos when transferred to hormone-free MS medium with 0.09M sucrose. In all cases, somatic embryos were formed directly from the explants without visible callus formation.
Importance of mortality from head injury in immediate survivors of vehicular injuries (1992)

This paper performs an analysis of 174,160 patients admitted to 165 trauma centers in the United States. The aim is to compare mortality of those injured by mechanisms with non-vehicular causes. Vehicular injuries (49.7%) were divided into those to vehicle occupants (VO, 36.4%), pedestrians (PED, 7.2%) and motorcyclists (MC, 6%). Non-vehicular injuries were subdivided into: (1) penetrating causes, namely: gunshot (8.7%), stabbings (8%) and other (1.8%); and (2) blunt causes such as falls (18.4%), and assaults (13.2%). Each injury was categorized: (i) by severity, according to the 1985 version of the Abbreviated Injury Scale (AIS), and (ii) by the presence of injury to the skull or brain (head injuries=HI). Of the 59,713 HI, causes produced more head injuries (66.6%) than all other causes, despite the preponderance of non-vehicular injuries in the overall series (50.3%). For each of the injuries, HI mortality was higher than if no head injury (NHI) occurred. This was also true for each AIS level. The greatest vehicular mortality harm in immediate survivors of crashes is caused by VO with HI of AIS=3-6 who also have extracranial injuries of AIS=3 severity. This group has three times the importance of any PED group and almost six times the importance of any MC group. See also IRRD 857308. For the covering abstract of the conference see IRRD 871381.
Addition reactions of benzo[b] thiophen. Part 3. Addition and ring-opening reactions with phenolic ethers (1982)

In the presence of aluminium chloride, anisole, phenetole, diphenyl ether, and (methylthio)benzene are added rapidly across the 2,3-bond in benzo[b]thiophen to give, inter alia, a mixture of 2- and 3-(p-substituted aryl)-2,3-dihydrobenzo[b]thiophens (3) and (4). Contrary to expectation, the 2-isomer predominates in all cases, and the addition is irreversible. Reaction with anisole also leads to a novel ring-opened product, viz.(E)-4-methoxy-2′-methylthiostilbene (9a), which was synthesised unambiguously. It is believed that benzo[b]thiophen is S-methylated by PhOMe–AlCl3in a ‘push–pull’ reaction, and that the resulting positive charge is delocalised into the ring, thus allowing the 2-position to participate in electrophilic attack on a second molecule of anisole. The resulting quadrivalent sulphur intermediate achieves stabilisation by means of a rapid ring-opening reaction. Other aromatic methyl ethers give analogous products, but phenetole, diphenyl ether, and (methylthio)benzene do not promote ring-opening. The ring-opening reaction is aided by the addition of MeBr– or EtBr–AlCl3; even phenetole will then undergo ring-opening. Under these conditions the S-alkyl group in the ring-opened product comes from the starting ether, and not from the added MeBr or EtBr.