gebhart/patrepeval huggingface dataset:
Effect of stereochemistry on the high-performance liquid chromatographic retention index of azabicycloalkanes (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of stereochemistry on the high-performance liquid chromatographic retention index of azabicycloalkanesJohn K. Baker, Gilbert J. Hite, Marie. Reamer, and Paul. SalvaCite this: Anal. Chem. 1984, 56, 14, 2932–2935Publication Date (Print):December 1, 1984Publication History Published online1 May 2002Published inissue 1 December 1984https://pubs.acs.org/doi/10.1021/ac00278a070https://doi.org/10.1021/ac00278a070research-articleACS PublicationsRequest reuse permissionsArticle Views46Altmetric-Citations4LEARN 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
Do Control Beliefs Mediate the Relationship Between Social Exchanges and Health? Examining a Mediational Model across the Lifespan (2008)

Social exchanges and control beliefs are each associated with heath yet rarely considered together. This research examined whether control beliefs are a plausible mechanism linking domain specific social exchanges (both supportive and unsupportive) to health. The sample consisted of 2,348 adults drawn from the Midlife in the United States Survey (MIDUS). All participants were married or in a cohabitating relationship; they were primarily White and educated. Structural equation modeling was used to test multiple meditational models. When the model was tested for the entire sample, control beliefs were found to serve as a mediator, significantly mediating the relationship between social exchanges and subjective well-being, but not physical health. When the model was tested for separate age groups, evidence for mediation was found for the young (24-39) and middle-aged (40-59) groups, but not the older (60-75) group. Results suggest a meditational model in young and middle adulthood is plausible, but that social exchanges may serve different functions and have different associations with control beliefs across the lifespan. Thus, social network theory should consider adopting a lifespan perspective sensitive to the developmental tasks and goals at varying ages.
A Novel Technique for Open-Stopband Suppression in 1-D Periodic Printed Leaky-Wave Antennas (2009)

A novel technique for the elimination of the open stopband in one-dimensional periodic printed leaky-wave antennas is presented. A quarter-wave transformer, or alternatively a matching stub, is introduced into the unit cell of the antenna, which forces the Bloch-wave impedance of the structure to remain real and non-zero at broadside. The effectiveness of the proposed technique is first demonstrated on a printed periodic microstrip leaky-wave antenna consisting of a single radiating stub per unit cell, which exhibits a significant stopband at broadside. The technique is then also applied to a structure consisting of two radiating stubs per unit cell, which is capable of mitigating, but not eliminating, the open stopband. In both cases the open stopband at broadside is completely suppressed.
Group Work Practice with Transgendered Male to Female Sex Workers (1999)

Abstract Group work is frequently the method of choice for working with adolescents. This paper focuses on group work with transgend-ered youth who engage in sex work. Utilizing case examples, this paper provides an overview of the role that sex work plays in the lives of some transgendered youth and offers guidance for those interested in utilizing group work approaches with transgendered adolescents.
Fibrinogen concentrate for acquired hypofibrinogenaemic states (2008)

This study aims to assess the efficacy and safety of fibrinogen concentrate in acquired hypofibrinogenaemic states. Cryoprecipitate is standard treatment for replacement of fibrinogen in acquired hypofibrinogenaemia. A virally inactivated fibrinogen concentrate (Haemocomplettan((R)); CSL Behring, Marburg, Germany) is licensed in some European countries. Clinical data for its use in acquired hypofibrinogenaemic states are scarce. Demographic and pretreatment clinical data of patients treated with fibrinogen concentrate for acquired hypofibrinogenaemia were retrospectively reviewed. Pretreatment and posttreatment fibrinogen levels, transfusion requirements, outcomes and adverse events were recorded. Thirty adult patients who received fibrinogen concentrate for acquired hypofibrinogenaemia (fibrinogen <1.5 g L(-1)) were included in the study. Causes of hypofibrinogenaemia included placental abruption, disseminated intravascular coagulation as a result of massive blood loss and transfusion, liver failure and cardiac surgery. Following a median dose of 4 g fibrinogen concentrate, median Clauss fibrinogen level rose from 0.65 to 2.01 g L(-1), with a median fibrinogen increment of 0.25 g L(-1) per 1 g fibrinogen concentrate administered. Forty-six per cent of patients stopped bleeding with blood components and fibrinogen concentrate alone, and a further 29% stopped bleeding with surgical or endoscopic intervention. Inpatient mortality was 40%. No venous thromboses were observed. Four patients with massive perioperative haemorrhage and hypotension (including three postcardiothoracic surgery) had arterial ischaemic events, none of which was attributable to fibrinogen overreplacement. The cost of fibrinogen concentrate was comparable with that of cryoprecipitate. Purified, virally inactivated fibrinogen concentrate appears effective in the management of acquired hypofibrinogenaemic states and enables rapid administration of a known fibrinogen dose in an emergency setting.
Toward the digital twin of additive manufacturing: Integrating thermal simulations, sensing, and analytics to detect process faults (2019)

The goal of this work is to achieve the defect-free production of parts made using Additive Manufacturing (AM) processes. As a step towards this goal, the objective is to detect flaws in AM parts during the process by combining predictions from a physical model (simulation) with in-situ sensor signatures in a machine learning framework. We hypothesize that flaws in AM parts are detected with significantly higher statistical fidelity (F-score) when both in-situ sensor data and theoretical predictions are pooled together in a machine learning model, compared to an approach that is based exclusively on machine learning of sensor data (black-box model) or physics-based predictions (white-box model). We test the hypothesized efficacy of such a gray-box model or digital twin approach in the context of the laser powder bed fusion (LPBF) and directed energy deposition (DED) AM processes. For example, in the DED process, we first predicted the instantaneous spatiotemporal distribution of temperature in a thin-wall titanium alloy part using a computational heat transfer model based on graph theory. Subsequently, we combined the preceding physics-derived thermal trends with in-situ temperature measurements obtained from a pyrometer in a readily implemented supervised machine learning framework (support vector machine). We demonstrate that the integration of temperature predictions from an ab initio heat transfer model and in-situ sensor data is capable of detecting flaws in the DED-produced thin-wall part with F-score approaching 90%. By contrast, the F-score decreases to nearly 80% when either temperature measurements from the in-situ sensor or temperature distribution predictions from the theoretical model are used alone by themselves. This work thus demonstrates an early foray into the digital twin paradigm for real-time process monitoring in AM via seamless integration of physics-based modeling (simulation), in-situ sensing, and data analytics (machine learning).
Portable information technology. (1987)

The first of a series of five articles written by members of the Council on Research, an overview of technological advances affecting health record practice, appeared in the August issue of JAMRA. This month's article specifically focuses on the storage of medical information in a plastic card format.
Effect of Irradiation Wavelength on Kinetics of Direct Photodegradation of Estrone (2015)

Natural and synthetic estrogens present a potential threat to aquatic life. This is due to their alarming effects on reproduction and developmental processes of aquatic organisms. These estrogens disrupt the organisms' endocrine systems and decreased their fertility. The estrogens reach the aquatic environment through urban and industrial waste discharges. Irradiation of the wastewater under ultra-violet light showed that these estrogens could be degraded. In this study, Estrone (E1) was chosen as a representative of the estrogens. The photochemical behavior of E1 was investigated under ultra-violet irradiation at 254 nm and 350 nm. The photodegradation of E1 yielded several intermediates. The concentrations of estrone and the intermediates were monitored during photodegradation using a high performance liquid chromatography (HPLC) method. The photodegradation of E1 at both wavelengths followed pseudo-first-order kinetics with respect to E1 concentration. The HPLC chromatograms indicated that three peaks were sequentially formed with time through plausible consecutive reactions. Further study is needed to identify the reaction intermediates/products in order to propose the detailed reaction mechanisms.
Titanium-Promoted Acylation of Sulfonamides to<i>N</i>-Acylsulfonamide PPAR<font>α</font>Antagonists (2015)

The direct acylation of sulfonamides by esters represents an attractive strategy in organic chemistry, being an interesting alternative to classical approaches to N-acylsulfonamides. Here is described a simple and effective method to obtain N-acylsulfonamides of pharmaceutical interest, in a reaction promoted by titanium(IV) chloride. This strategy was successfully applied to the synthesis of a peroxisome proliferator–activated receptor α antagonist with a benzenesulfonimide moiety, ensuring an excellent yield of product. The reaction was further studied to explore the behavior of different α-bromoesters and esters and the effects of para-substitution in the benzenesulfonamide moiety.
The 3-dB transcoding penalty in digital cellular communications (2011)

In spite of the widespread attention to data and video, voice is still responsible for up to 75% of the revenue in wireless communications systems today. An unfortunate characteristic of 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">nd</sup> and 3 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">rd</sup> generation digital cellular systems has been the need to transcode at most network interfaces, since the voice codec at the other end of the call is usually unknown and cannot be negotiated. Fourth generation systems such as LTE also require transcoding when the call leaves the LTE network. Transcoding at network interfaces adds complexity, degrades quality, and increases latency, all of which directly impact the quality and cost of voice communications. We investigate the issues in voice communications over tandem connections of wireline and wireless communications links using rate distortion theoretic results and speech coding studies and show that each transcoding operation can incur a 3-dB penalty in source coding performance, in addition to increased latency and complexity. Suggestions for addressing this performance loss are presented.
Total Respiratory Inertance and Its Gas and Tissue Components in Normal and Obese Men * (1964)

Total respiratory inertance may be defined as that component of the total impedance to breathing that relates to acceleration of respiratory gas and of all tissue elements (lungs, rib cage, diaphragm, and abdominal contents) that move during respiration. It is expressed in units of pressure required to overcome this inertial component of the total impedance and produce air flow acceleration of 1 L per second per second. Thus its units are centimeters H2O per liter per second2. Intuitively, one would suspect that the inertance of the chest and the abdomen should be increased in severely obese subjects. In investigations of total respiratory mechanics in excessively obese persons, we made measurements of total respiratory inertance. In addition, we attempted to separate the total respiratory inertance into its gas and tissue (including lung tissue, chest wall, and abdominal) components in three normal and three excessively obese subjects. These data form the substance of this report. Inertance data on the normal human respiratory system were first published by DuBois, Brody, Lewis, and Burgess (1) in 1956. These authors, assuming that the respiratory system behaves mechanically as a simple or lumped physical system, determined the total compliance and the natural frequency of the respiratory system. They then calculated the total inertance of the respiratory system by using the simple physical relationship by which the natural frequency of a system may be predicted if its elastic and inertial characteristics are known: fn = 1/274 1/jI *C, where fn
ChemInform Abstract: STUDIES OF ORTHO‐SUBSTITUTED DERIVATIVES OF BIPHENYL. I. NITRATION OF BIPHENYL‐2‐CARBOXYLIC ACID AND CHEMICAL PROPERTIES OF ITS NITRO‐SUBSTITUTED DERIVATIVES (1979)

Abstract Nitrierungen der Titelverbindung liefern infolge einer dirigierenden Wirkung der Carboxylgruppe bevorzugt d‐nitrierte Produkte (II).
Comparative downlink shared channel performance evaluation of WCDMA release 99 and HSDPA (2004)

In order to avoid downlink channelization code shortage, a DSCH has been specified for WCDMA Release 99 system, and has been designed for enabling high data rate packet transmission. Further, WCDMA Release 5 introduces HSDPA to realize higher speed data rate together with lower round-trip times. In this paper, the performance of the downlink shared channel of Release 99 and HSDPA systems has been presented and compared. The system level simulation results were obtained using a dynamic system simulator. The simulator includes all relevant radio characteristics, WCDMA/HSDPA functions, and realistic models of the downlink traffic generated by Web browsing users. The results show that the HSDPA concept provides a 200% higher capacity gain than Release 99 DSCH and it goes to triple the service throughput when system load is increased. Moreover, the HSDPA concept offers outstanding improvement in the packet call throughput and also significantly reduces the packet call transfer delay as compared with the Release 99 DSCH.
Identification of new protein species among 33 different small GTP‐binding proteins encoded by cDNAs from <i>Lotus japonicus</i>, and expression of corresponding mRNAs in developing root nodules (1997)

In this study, 266 cDNA clones were isolated from a cDNA library made from mRNA of three-week-old root nodules of Lotus japonicus, employing a degenerate oligonucleotide probe that corresponds to a conserved region of small GTP-binding (SMG) proteins. The clones were sorted into groups by cross hybridization and 3' sequencing, and 33 contigs were sequenced in an orderly fashion. Twenty-seven complete and six incomplete protein structures were deduced, which represent three subfamilies of the superfamily of signal transducing GTP-binding proteins. The 33 proteins are divided into nine subclasses, of which seven belong to the Ypt/Rab subfamily, one subclass represents the Rho/Rac subfamily, and one subclass represents the Ran subfamily of small GTP-binding proteins. The protein sequences were compared with related proteins from other plants, from mammals and other species, and discussed with respect to structure and function in different cellular processes. It is apparent that the number of genes encoding SMG proteins in plants must be quite large, since the large number of subclasses found in other eukaryotes is not fully represented in our analysis. Transcription patterns through root nodule development were analysed for 27 of the 33 cDNAs. Differential expression patterns may reflect whether the coded gene product is of importance for organ development. Most mRNAs appear to be constitutively expressed; however, a few unique mRNAs representing the subclasses Rab1, Rab2, Rab5, Rab7 and Rac show elevated levels in root nodules, and certain Rab7, Rab8 and Rab11 species are enriched in aerial parts of the plant. This suggests that most small GTPases have household functions, whereas a few may be required for specialized activities that are important for specialized cells.
Disparity-based view morphing—a new technique for image-based rendering (1998)

Article Free Access Share on Disparity-based view morphing—a new technique for image-based rendering Authors: Ho-Chao Huang Institute of Information Science, Academia Sinica, Taipei, Taiwan Institute of Information Science, Academia Sinica, Taipei, TaiwanView Profile , Shung-Hua Nain Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan Department of Computer Science and Information Engineering, National Taiwan University, Taipei, TaiwanView Profile , Yi-Ping Hung Institute of Information Science, Academia Sinica, Taipei, Taiwan Institute of Information Science, Academia Sinica, Taipei, TaiwanView Profile , Tse Cheng Computer & Communication Lab., Industrial Technology Research Institute, Hsinchu, Taiwan Computer & Communication Lab., Industrial Technology Research Institute, Hsinchu, TaiwanView Profile Authors Info & Claims VRST '98: Proceedings of the ACM symposium on Virtual reality software and technologyNovember 1998 Pages 9–16https://doi.org/10.1145/293701.293703Published:02 November 1998Publication History 13citation520DownloadsMetricsTotal Citations13Total Downloads520Last 12 Months46Last 6 weeks5 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF
Hot Isostatic Pressing of Cubic Boron Nitride–Tungsten Carbide/Cobalt (cBN–WC/Co) Composites: Effect of cBN Particle Size and Some Processing Parameters on their Microstructure and Properties (2007)

Cubic boron nitride (cBN)‐cemented carbide composites have gained attraction over the last few years because of their potential uses as wear parts. The densification behavior of cBN—hard metal composites by glass encapsulation hot isostatic pressing—has been investigated. Composites with different cBN grades (from 0/0.5 to 6/12 μm particle sizes) and cBN content (up to 50 vol%) were selected for this study. Near‐full densification was obtained at temperatures between 1100° and 1200°C, and pressures between 150 and 200 MPa, respectively, while no phase transformation of cBN into the low‐hardness hexagonal form has been detected by X‐ray diffraction. The addition of cBN to the hard metal base material led to an increase of hardness, a significant increase of fracture toughness ( K I C measured by Vickers indentation), and a moderate decrease of mechanical strength (determined by three‐point bending).
Point-contact pseudo-MOSFET for in-situ characterization of as-grown silicon-on-insulator wafers (1992)

A pseudo-MOS transistor can be activated in as-grown silicon-on-insulator (SOI) structures without any device processing by using point-contact probes. The measurement setup for in-situ operation and typical transistor characteristics are presented. Parameters are extracted which relate to minority and majority carriers, buried oxide, and the Si-SiO/sub 2/ interface.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Molekulare Biotechnologie (2009)

Biotechnologie hat die Welt verändert – dieser Aus- anschließend in die grundlegenden Methoden der sage kann man ohne Zweifel zustimmen. Dank der Biotechnologie eingeführt. Kapitel 3 befasst sich mit
Improved Vehicle-to-Home (iV2H) Operation Mode: Experimental Analysis of the Electric Vehicle as Off-Line UPS (2016)

This paper presents experimental results of electric vehicle (EV) operation as an off-line uninterruptible power supply (UPS). Besides the traditional grid-to-vehicle and vehicle-to-grid modes, this paper presents an improved vehicle-to-home operation mode. This new operation mode consists of the detection of a power outage in the power grid and the change of the EV battery charger control to operate as an off-line UPS. When the power grid voltage is restored, the voltage produced by the on-board EV battery charger is slowly synchronized with the power grid voltage before a complete transition to the normal mode. This paper presents results of two algorithms to detect a power outage: the root mean square (rms) calculation method based on half-cycle of the power grid voltage, and the rms estimation based on a Kalman filter. The experimental results were obtained in steady and transient state considering two cases with the EV plugged in at home: when charging the batteries and without charging the batteries. This paper describes the EV battery charger, the power outage detection methods, and the voltage and current control strategies.
Acquiring and managing knowledge using a conceptual structures approach: introduction and framework (1989)

One powerful representational system-conceptual structures that continue the trend towards knowledge programming-is examined. J.F. Sowa's conceptual structures approach (Conceptual Structures: Information Processing in Mind and Machine, Addison-Wesley, NY, 1984), a graph-based semantic network, is a general representational system with a natural-language expressivity. This allows problem-domain issues to be readily captured and expressed at several levels of granularity. Conceptual graph (CG) propositions can also act as a flexible intermediate form for the more common representations used in implementing many AI systems-frames, production rules, conceptual dependency, and logic systems. Thus, CG knowledge models are capable of symbolic translation into forms that are more familiar. Issues of expressively capturing the semantics of problem domains are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
<i>Mycobacterium canettii</i>, the Smooth Variant of <i>M. tuberculosis</i>, Isolated from a Swiss Patient Exposed in Africa (1998)

An exceptionally smooth and glossy morphotype of Mycobacterium tuberculosis complex was isolated from a 56-year-old Swiss patient with mesenteric tuberculosis. Direct 16S rRNA sequence analysis of the hypervariable signature gene regions revealed a 100% homology to the specific M. tuberculosis complex sequence. Spoligotyping and restriction fragment length polymorphism analyses using the insertion sequences IS6110 and IS1081 and the polymorphic GC-rich sequence as additional genetic markers identified the isolate as the novel taxon M. canettii. Like a Somali child with a similar case, this patient probably contracted the infection in Africa, which raises questions about the geographic distribution of M. canettii.