gebhart/patrepeval huggingface dataset:
(S)-Tetrahydro-5-oxo-2-furancarboxylic acid: a chiral derivatizing reagent for asymmetric alcohols (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT(S)-Tetrahydro-5-oxo-2-furancarboxylic acid: a chiral derivatizing reagent for asymmetric alcoholsR. E. Doolittle and R. R. HeathCite this: J. Org. Chem. 1984, 49, 26, 5041–5050Publication Date (Print):December 1, 1984Publication History Published online1 May 2002Published inissue 1 December 1984https://pubs.acs.org/doi/10.1021/jo00200a003https://doi.org/10.1021/jo00200a003research-articleACS PublicationsRequest reuse permissionsArticle Views1076Altmetric-Citations47LEARN 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
Distributed recycling of waste polymer into RepRap feedstock (2013)

Purpose A low‐cost, open source, self‐replicating rapid prototyper (RepRap) has been developed, which greatly expands the potential user base of rapid prototypers. The operating cost of the RepRap can be further reduced using waste polymers as feedstock. Centralized recycling of polymers is often uneconomic and energy intensive due to transportation embodied energy. The purpose of this paper is to provide a proof of concept for high‐value recycling of waste polymers at distributed creation sites. Design/methodology/approach Previous designs of waste plastic extruders (also known as RecycleBots) were evaluated using a weighted evaluation matrix. An updated design was completed and the description and analysis of the design is presented including component summary, testing procedures, a basic life cycle analysis and extrusion results. The filament was tested for consistency of density and diameter while quantifying electricity consumption. Findings Filament was successfully extruded at an average rate of 90 mm/min and used to print parts. The filament averaged 2.805 mm diameter with 87 per cent of samples between 2.540 mm and 3.081 mm. The average mass was 0.564 g/100 mm length. Energy use was 0.06 kWh/m. Practical implications The success of the RecycleBot further reduces RepRap operating costs, which enables distributed in‐home, value added, plastic recycling. This has implications for municipal waste management programs, as in‐home recycling could reduce cost and greenhouse gas emissions associated with waste collection and transportation, as well as the environmental impact of manufacturing custom plastic parts. Originality/value This paper reports on the first technical evaluation of a feedstock filament for the RepRap from waste plastic material made in a distributed recycling device.
What is a Church? (1970)

The ecumenical movement is now old enough to merit a second volume to its history. It covers the twenty years from 1948 to 1968; or in the esoteric language of the movement, from Amsterdam to Uppsala. The book inevitably abounds in this kind of esoteric language; conferences, committees and consultations have been held at innumerable places, and the name of every such place thereupon becomes the name of an event as well. One is used to the habit in general history, in which it seems normal to talk about before and after Trent or Versailles; but the over-employment of it in specialized history creates an atmosphere of a close little world of people in the know. So, too, councils and associations and conferences have multiplied, each equipped with its proper set of initials. Under the heading ‘Abbreviations’ eighty-six of these code names and letters, with their meanings, are listed at the beginning of the work. All this makes it a book that is hard—indeed, I would say impossible—to read. Had the fifteen contributors to the volume been literary historians of genius, it is doubtful whether they could have made it much more readable than it is; the material is too intractable. What they have provided is an indispensable reference book for the study and understanding of the contemporary ecumenical movement.
Functional anatomy and physiology of gastric secretion (2015)

Our understanding of the functional anatomy and physiology of gastric secretion continues to advance. Such knowledge is crucial for improved management of acid-peptic disorders, prevention and management of neoplasia, and the development of novel medications.
Immobilized Hyperbranched Glycoacrylate Films as Bioactive Supports (2006)

[Image: see text] We report on the low-pressure plasma immobilization, characterization and application of thin films of hyperbranched glycoacrylates, poly(3-O-acryloyl-alpha,beta-D-glucopyranoside) (AGlc), on PTFE-like fluorocarbon surfaces. This method is an efficient and versatile way to immobilize sugar-carrying branched acrylates as thin films of approximately 5 nm thickness on polymeric substrates while the functional groups and properties of the immobilized molecules are largely retained. The extent of poly(AGlc) degradation during plasma immobilization was investigated using FTIR-ATR spectroscopy and XPS. The thickness and topography of the immobilized films were characterized using spectroscopic ellipsometry and SFM, respectively. Studies of protein adsorption, as well as cell adhesion and proliferation on the poly(AGlc) surfaces, showed that these materials are suitable for the control of biointerfacial phenomena. Fluorescence images of fibronectin adsorbed on to the branched glycoacrylate with a mask.
Automated in-line production of fiber Bragg gratings using special coatings (1997)

We describe an automated manufacturing technique for Bragg gratings with minimal human intervention. Key to this development is a special coating which can be removed thermally without significantly degrading the strength of the optical fiber.
Chiral bis(oxazolinyl)phenylrhodium(iii) complexes as Lewis acid catalysts for enantioselective allylation of aldehydes (1999)

The reaction of (Phebox)SnMe3 1 [PheboxH = 2,6-bis(oxazolinyl)benzene] and [(c-octene)RhCl]2 in the presence of CCl4 provided air-stable and water-tolerant (Phebox)RhCl2(H2O) complexes 2 which acted as asymmetric catalysts for the enantioselective allylation of aldehydes in up to 80% ee.
Use and Safety of Antipsychotics in Behavioral Disorders in Elderly People With Dementia (2013)

In recent years, the use of antipsychotics has been widely debated for reasons concerning their safety in elderly patients affected with dementia. To update the use of antipsychotics in elderly demented people, a MEDLINE search was conducted using the following terms: elderly, conventional and atypical antipsychotics, adverse events, dementia, and behavioral and psychotic symptoms in dementia (BPSD). Owing to the large amounts of studies on antipsychotics, we mostly restricted the field of research to the last 10 years. Conventional antipsychotics have been widely used for BPSD; some studies showed they have an efficacy superior to placebo only at high doses, but they are associated with several and severe adverse effects. Atypical antipsychotics showed an efficacy superior to placebo in randomized studies in BPSD treatment, with a better tolerability profile versus conventional drugs. However, in 2002, trials with risperidone and olanzapine in elderly patients affected with dementia-related psychoses suggested the possible increase in cerebrovascular adverse events. Drug regulatory agencies issued specific recommendations for underlining that treatment of BPSD with atypical antipsychotics is "off-label." Conventional antipsychotics showed the same likelihood to increase the risk of death in the elderly as atypical agents, and they should not replace the atypical agents discontinued by Food and Drug Administration warnings. Before prescribing an antipsychotic drug, the following are factors to be seriously considered: the presence of cardiovascular diseases, QTc interval on electrocardiogram, electrolytic imbalances, familiar history for torsades des pointes, concomitant treatments, and use of drugs able to lengthen QTc. Use of antipsychotics in dementia needs a careful case-by-case assessment, together with the possible drug-drug, drug-disease, and drug-food interactions.
Hydrogenation of soybean oil with commercial copper‐chromite and nickel catalysts: Winterization of low‐linolenate oils (1971)

Abstract Soybean oil hydrogenated in the presence of copper‐chromite catalysts to 3% linolenate and below requires winterization if it is to pass the cold test. Yields of winterized oil from soybean oil hydrogenated to several linolenate levels were therefore studied. Partially hydrogenated soybean oil was sampled and filtered at intervals during hydrogenation on a pilot plant scale with a commercial copper‐chromite catalyst. Samples were then vacuum bleached and filtered to remove dissolved copper, held at 7 C for 48 hr and filtered to remove stearines. The filtered winter oils passed the standard 5.5 hr cold test. For soybean oil in which linolenate was reduced to 0.1% with a commercial copper‐chromite catalyst or to 3.0% with a nickel catalyst yields of winter oil were about the same; 92% for a 5.5 hr cold test oil (winterized two days at 7 C) and 89% for a 20 hr cold test oil (winterized two days at 4 C).
How Higher Performing Employment Specialists Support Job-Seekers with Psychiatric Disabilities Retain Employment (2018)

In this qualitative study seventy six Australian employment specialists who predominantly work with individuals with psychiatric disabilities were classified as either higher or lower performers based on their job-seekers' employment outcomes. Key differentiating practices and attitudes relevant to job retention were identified between higher and lower performers when assisting individuals with psychiatric disabilities. The practices and attitudes of high performers, in contrast to those of lower performers, can potentially inform future training of occupational therapists and others performing the role of employment specialists. Investigations of measurement reliability and predictive validity are now needed to quantify the extent that these specific job retention practices translate into better employment outcomes for job seekers with psychiatric disabilities. These findings add to our understanding of expertise in performing the role of employment specialist and why this role is critical for the successful vocational rehabilitation of people with psychiatric disabilities.
A Double Wavelength Laser Doppler System to Investigate Skin Microcirculation (1985)

A new experimental laser Doppler setup has been designed to discriminate between total and superficial skin blood flow. This selectivity is based on the use of two wavelengths with different penetration depths into the skin. An argon ion and helium-neon laser are mounted on the same optical bench and are stabilized by an optical feedback loop. A single optical fiber directs the beams to the skin and collects the reflected light back to a photodetector, the signal of which is sampled and Fourier transformed to give a frequency power spectrum. Several models of light scattering by the skin are examined, and a single Lorentzian function is found to be the best fit for our experimental power spectra. Flow parameters have been thus measured for several in vitro and in vivo situations. In vitro calibration indicates that there is a constant ratio between the frequency responses at both wavelengths used. The decrease of this ratio encountered in in vivo measurements is attributed to different depths of investigated skin microcirculation according to the incoming wavelengths.
Phase I Clinical Trial of Weekly Combretastatin A4 Phosphate: Clinical and Pharmacokinetic Results (2003)

CA4P was well tolerated in 14 of 16 patients at 52 or 68 mg/m2; these are doses at which tumor blood flow reduction has been recorded.
Fault-tolerant clock synchronization (1984)

This paper gives two simple efficient distributed algorithms: one for keeping clocks in a network synchronized and one for allowing new processors to join the network with their clocks synchronized. The algorithms tolerate both link and node failures of any type. The algorithm for maintaining synchronization will work for arbitrary networks (rather than just completely connected networks) and tolerates any number of processor or communication link faults as long as the correct processors remain connected by fault-free paths. It thus represents an improvement over other clock synchronization algorithms such as [LM1,LM2,LL1]. Our algorithm for allowing new processors to join requires that more than half the processors be correct, a requirement which is provably necessary.
Detection of prosthetic vascular graft infection using avidin/indium-111-biotin scintigraphy. (1996)

Avidin/111In-biotin scintigraphy is a simple and accurate imaging method for the routine diagnosis of vascular graft infection, and it may have a role in identifying the disease process in its initial stages, thus improving prognosis.
I<sub>1</sub>-Imidazoline Agonist Moxonidine Decreases Sympathetic Nerve Activity and Blood Pressure in Hypertensives (1998)

Moxonidine is an I1-imidazoline receptor agonist that reduces blood pressure in hypertensives. Experimental data suggest that moxonidine inhibits central sympathetic activity. However, whether such a mechanism is involved in vivo in humans is still unclear. We investigated the effects of 0.4 mg moxonidine orally on muscle sympathetic nerve activity and heart rate in an open study in 8 healthy volunteers. Furthermore, we studied the effects of 0.4 mg moxonidine on muscle sympathetic nerve activity, heart rate, blood pressure, 24-hour blood pressure profile, and hormone plasma levels in 25 untreated hypertensives in a double-blind, placebo-controlled study. Moxonidine decreased muscle sympathetic nerve activity in both healthy volunteers (P<0.05 versus baseline) and hypertensives (P<0.02 versus placebo). Plasma norepinephrine also decreased (P<0. 01), whereas plasma epinephrine and renin levels did not change (P=NS). Furthermore, moxonidine decreased systolic (P<0.0001) and diastolic (P<0.001) blood pressure. Heart rate decreased after moxonidine in healthy subjects (P<0.05); in hypertensives, heart rate decreased during the night hours (P<0.05) but not during daytime (P=NS). Plasma levels of LDL, HDL, and total cholesterol were not influenced by the drug (P=NS). Moxonidine decreases systolic and diastolic blood pressure by inhibiting central nervous sympathetic activity. This makes this new drug suitable for the treatment of human hypertension and possibly for other cardiovascular diseases with increased sympathetic nerve activity, ie, ischemic heart disease and heart failure.
DASH in Twitch (2014)

Live game streaming platforms such as Twitch allow gamers to broadcast their gameplay over the Internet. The popularity of these platforms boosts the market of eSport but poses new delivery problems. In this paper, we focus on the implementation of adaptive bitrate streaming in massive live game streaming platforms. Based on three months of real data traces from Twitch, we motivate the need for an adoption of adaptive bitrate streaming in this platform to reduce the delivery bandwidth cost and to increase QoE of viewers. We show however that a naive implementation requires the reservation of a large amount of computing resources for transcoding purposes. To address the trade-off between benefits and costs, we formulate a management problem and we design two strategies for deciding which online channels should be delivered by adaptive bitrate streaming. Our evaluations based on real traces show that these strategies can reduce the overall infrastructure cost by 40% in comparison to an implementation without adaptive streaming.
Purification of a 110-kilodalton cytosolic phospholipase A2 from the human monocytic cell line U937. (1990)

The major dithiothreitol-resistant phospholipase A2 activity present in the cytosol of U937 cells has been purified greater than 200,000-fold by sequential chromatography on phenyl-5PW, heparin-Sepharose CL-6B, high-performance hydroxylapatite, TSK-gel G3000-SW, and Mono Q columns. This 110-kDa cytosolic phospholipase A2 is distinct from the relatively small (14-kDa) dithiothreitol-sensitive phospholipases A2 that are secreted from many cell types. This additional phospholipase A2 selectively hydrolyzes fatty acid at the sn-2 position of the glycerol and favors phospholipids containing arachidonic acid, which is the rate-limiting precursor for prostaglandin and leukotriene production. Interestingly, a greater than 5-fold increase in phospholipase A2 activity is noted as the calcium concentration increases from the levels found in resting cells to those observed in activated macrophages. We suggest that this enzyme and not the previously described secretory phospholipase A2 is activated by cytosolic effectors such as GTP-binding regulatory proteins and protein kinases to initiate the production of prostaglandins, leukotrienes, and platelet-activating factor. To distinguish this cytosolic enzyme from the previously described secretory ones, we suggest referring to it as cPLA2 for cytosolic phospholipase A2 and collectively referring to the secretory phospholipases A2 as sPLA2s.
Measurement of total antioxidant activity as a marker of antioxidant status in vivo: procedures and limitations. (2000)

The ability to apply a simple routine assay to report on the total antioxidant activity of plasma/serum and other body fluids and their responses to dietary intervention and nutritional supplementation is an attractive useful proposition. This article will attempt to address where we are, in the author's view, in this context, setting out the pros and cons of the available methodologies en route.
A proactive approach for LTE radio network planning with green considerations (2012)

The recent trend towards energy-efficient and environment-aware network operations has mandated the development of novel green network planning paradigms. In this context, while existing work focused on developing reactive energy reduction techniques after complete network deployment, this paper presents a proactive green radio network planning (RNP) algorithm that jointly optimizes base station (BS) locations and generates the BS on/off switching patterns based on the changing traffic conditions. Simulation results demonstrate considerable energy savings through dynamic adaptation of the number of simultaneous active BSs.
Cisco Callmanager Fundamentals: A Cisco Avvid Solution (2001)

From the Publisher:
Exposes the inner workings of CallManager to help you maximize your Cisco IP Telephony solution

Learn how to deploy and manage a CallManager solutionUnderstand how CallManager processes information through detailed architectural examples and descriptions Understand the components that make up CallManager call routing through the use of basic to advanced examples that solve enterprise call routing problemsLearn detailed information about North American and international dial plans, trunk and station devices, media resources, managing and monitoring CallManager, and call detail records

Cisco CallManager Fundamentals provides examples and reference information about CallManager, the call processing component of the Cisco AVVID (Architecture for Voice, Video, and Integrated Data) IP Telephony solution. Cisco CallManager Fundamentals uses examples and architectural descriptions to explain how CallManager processes calls. This book details the inner workings of CallManager so that those responsible for designing and maintaining a Voice over IP (VoIP) solution from Cisco Systems. can understand the role each component plays and how they interrelate. You will learn detailed information about hardware and software components, call routing, media processing, system management and monitoring, and call detail records. The authors, all members of the CallManager group at Cisco Systems, also provide a list of features and Cisco solutions that integrate with CallManager. This book is the perfect resource to supplement your understanding of CallManager.
The Spectral Bias of the Deep Image Prior (2019)

The "deep image prior" proposed by Ulyanov et al. is an intriguing property of neural nets: a convolutional encoder-decoder network can be used as a prior for natural images. The network architecture implicitly introduces a bias; If we train the model to map white noise to a corrupted image, this bias guides the model to fit the true image before fitting the corrupted regions. This paper explores why the deep image prior helps in denoising natural images. We present a novel method to analyze trajectories generated by the deep image prior optimization and demonstrate: (i) convolution layers of the an encoder-decoder decouple the frequency components of the image, learning each at different rates (ii) the model fits lower frequencies first, making early stopping behave as a low pass filter. The experiments study an extension of Cheng et al which showed that at initialization, the deep image prior is equivalent to a stationary Gaussian process.
The soluble methane monooxygenase gene cluster of the trichloroethylene-degrading methanotroph Methylocystis sp. strain M (1997)

In methanotrophic bacteria, methane is oxidized to methanol by the enzyme methane monooxygenase (MMO). The soluble MMO enzyme complex from Methylocystis sp. strain M also oxidizes a wide range of aliphatic and aromatic compounds, including trichloroethylene. In this study, heterologous DNA probes from the type II methanotroph Methylosinus trichosporium OB3b were used to isolate souble MMO (sMMO) genes from the type II methanotroph Methylocystis sp. strain M. sMMO genes from strain M are clustered on the chromosome and show a high degree of identity with the corresponding genes from Methylosinus trichosporium OB3b. Sequencing and phylogenetic analysis of the 16S rRNA gene from Methylocystis sp. strain M have confirmed that it is most closely related to the type II methanotroph Methylocystis parvus OBBP, which, unlike Methylocystis sp. strain M, does not possess an sMMO. A similar phylogenetic analysis using the pmoA gene, which encodes the 27-kDa polypeptide of the particulate MMO, also places Methylocystis sp. strain M firmly in the genus Methylocystis. This is the first report of isolation and characterization of methane oxidation genes from methanotrophs of the genus Methylocystis.
VLSI Implementation Of Motion Compensation Full-Search Block-Matching Algorithm (1988)

In this paper, we describe a single chip VLSI implementation of a Motion Compensation algorithm for a very low bit-rate motion video codec. Our design aims at implementing the Block Matching Algorithm (BMA). The novel features of our design are the followings: 1. It has full-search capability. 2. It allows sequential data inputs but performs parallel processing with 100% efficiency. 3. Common buses are used for data transfer. 4. It is a highly modular design and easy to expand. 5. It contains testing circuitry. The design has been laid out. Simulation results show that with the use of double metal 1.2µ CMOS process, the design will be able to run up to 25 MHz. The schematic design for fractional-precision block matching system is also described in this paper.