gebhart/patrepeval huggingface dataset:
Quasi-solid dye sensitised solar cells filled with ionic liquid—increase in efficiencies by specific interaction between conductive polymers and gelators (2003)

Photo-energy conversions for quasi-solid dye sensitised solar cells increased when gel electrolytes were combined with conductive polymers as counter electrodes and the conversion surpassed that for DSSCs equipped with conventional Pt counter electrodes.
Adaptive antennas for space-time coding over block-time invariant multipath fading channels (2003)

Space-time codes have been introduced to improve mobile systems performance in a multipath fading environment. We consider the downlink of an L-multipath, m mobile-antenna system in which the base station has a phased n-antenna array (i.e. outdoor wireless). We show that when the channel has no ISI, then adaptive antennas, in the form of beamforming, can be combined with space-time coding to achieve a diversity of mL and a large signal processing (SNR) gain, whenever n/spl ges/L. When the channel has ISI, beamforming can be used to achieve an SNR gain over a SIMO system, although both have the same diversity gain. Novel concepts of beamforming are derived in the process.
Electroporation-Assisted Dewatering as an Alternative Method for Drying Plants (2008)

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> During the last few years, electroporation has been introduced to the food-processing industry as an effective method to open cell membranes for the extraction of substances. Currently, it has been investigated whether electroporation is also useful as a part of an energy-efficient drying process for plant material for the production of biofuel. To omit the use of additional water, the material has been placed in contact with the electrodes by means of its own juice after a first pressing step. This paper describes a laboratory-scale parameter study on the electroporation-assisted drying of whole maize plants, grass, and lucerne. The influence of the applied electric-field strength and the number of applied pulses on the drying curves is presented. For the electroporated material, an increased yield of juice during a pressing step after the electroporation and a faster drying have been observed. </para>
Transfer function design of stable high-order sigma-delta modulators with root locus inside unit circle (2003)

In this paper, a systematic method to design stable high-order sigma-delta modulator (SDM) transfer functions, with no need of stability mechanisms, is proposed. It is shown that a high-order SDM can be absolutely stable if the departure angles of the root locus of its noise-shaping function are properly designed. Tradeoffs between stability and performance of the SDMs are presented.
Phospholipid vesicles (liposomes) restore endothelium-dependent cholinergic relaxation in thoracic aorta from spontaneously hypertensive rats (1993)

The present results suggest that the loss of vascular endothelium-dependent responses in SHR may be, at least partly, due to endothelial cells membrane damage, and that the phosphatidylcholine liposomes can repair the function of endothelial cells and restore synthesis or release, or both, of EDRF in hypertension.
BIOLOGY OF AEROBIC CARBON MONOXIDE-OXIDIZING BACTERIA (1983)

Human coronavirus (HCoV) infection causes respiratory diseases with mild to severe outcomes. In the last 15 years, we have witnessed the emergence of two zoonotic, highly pathogenic HCoVs: severe acute respiratory syndrome coronavirus (SARS-CoV) and ...Read More
A20 protects endothelial cells from TNF-, Fas-, and NK-mediated cell death by inhibiting caspase 8 activation (2004)

A20 is a stress response gene in endothelial cells (ECs). A20 serves a dual cytoprotective function, protecting from tumor necrosis factor (TNF)-mediated apoptosis and inhibiting inflammation via blockade of the transcription factor nuclear factor-kappaB (NF-kappaB). In this study, we evaluated the molecular basis of the cytoprotective function of A20 in EC cultures and questioned whether its protective effect extends beyond TNF to other apoptotic and necrotic stimuli. Our data demonstrate that A20 targets the TNF apoptotic pathway by inhibiting proteolytic cleavage of apical caspases 8 and 2, executioner caspases 3 and 6, Bid cleavage, and release of cytochrome c, thus preserving mitochondrion integrity. A20 also protects from Fas/CD95 and significantly blunts natural killer cell-mediated EC apoptosis by inhibiting caspase 8 activation. In addition to protecting ECs from apoptotic stimuli, A20 safeguards ECs from complement-mediated necrosis. These data demonstrate, for the first time, that the cytoprotective effect of A20 in ECs is not limited to TNF-triggered apoptosis. Rather, A20 affords broad EC protective functions by effectively shutting down cell death pathways initiated by inflammatory and immune offenders.
Rationelles Erfinden: Technische Dokumentation als Grundlage von Entwicklungsarbeiten (1952)

Abstract An Hand einer Gegenüberstellung der in den letzten 60 Jahren angemeldeten und erteilten Patente wird auf die erhebliche Verlustquelle für geistige Energien aufmerksam gemacht, die aus der mangelnden Information über den Stand der Technik erwächst. Es wird ein für Deutschland never Weg zur technischen Dokumentation beschrieben, der mit der Errichtung eines „Auskunftsdienstes für den Stand der Technik”︁ bei der Treuhandstelle Reichspatentamt in Berlin beschritten worden ist. Die Tätigkeit dieser Dienststelle wird an einem Beispiel aus dem Apparatebau geschildert.
A new synthesis of 5,7‐dicarboxy‐2,1‐benzisoxazolin‐3‐one (1985)

Abstract Condensation of methyl 2‐isoxazolin‐5‐on‐3‐yl acetate ( 3 ) and 3‐( N,N ‐dimethylamino)‐2‐ethoxycarbonylacrolein ( 6 ) gave 5‐ethoxycarbonyl‐7‐methoxycarbonyl‐2,1‐benzisoxazolin‐3‐one ( 7a ). Simple hydrolysis of the diester 7a afforded 5,7‐dicarboxy‐2,1‐benzisoxazolin‐3‐one ( 7b ).
Single nucleotide polymorphisms of CD244 gene predispose to renal and neuropsychiatric manifestations with systemic lupus erythematosus (2010)

The objective of this study was to explore the association of single nucleotide polymorphisms (SNPs) of the CD244 gene with several clinical features of systemic lupus erythematosus (SLE). Two hundred and forty-three patients with SLE and 369 healthy controls were enrolled. Two SNPs (rs6682654 and rs3766379) in the CD244 gene were determined by allelic discrimination using a specific TaqMan probe. Only SNP rs3766379 was significantly associated with susceptibility to SLE [P = 0.009; odds ratio (OR) 1.28; 95% confidence interval (CI) 1.04-1.57]. The association was preferentially observed in subsets of SLE patients with nephritis and neuropsychiatric lupus. The frequency of the rs6682654 C allele was strongly associated with nephritis and neuropsychiatric lupus (P = 0.00065; OR 1.99; 95% CI 1.34-2.95, and P = 1.6 × 10(-7); OR 3.47; 95% CI 2.12-5.70, respectively), as was the frequency of the rs3766379 T allele (P = 0.0014; OR 1.86; 95% CI 1.27-2.71, and P = 2.6 × 10(-7); OR 3.15; 95% CI 2.00-4.96, respectively). In this study, an SNP of the CD244 gene was associated with susceptibility to SLE. There was a strikingly strong association in SLE patients with nephritis and neuropsychiatric lupus, suggesting that this genetic marker could predict involvement of those severe complications.
Final commissioning of the Balcones 60 MJ pulsed power supply (1991)

The Balcones 60 MJ pulsed power supply system is discussed. How the power supply was brought to a full operational state while being used to maintain a rigorous experimental EML shot schedule during the start-up period is discussed. Operational experience acquired as each generator was tested and brought into service, up to full energy and full current discharge, is described. Other topics include routing inspection and maintenance for keeping the power supply at a constant state of readiness, troubleshooting techniques and repair procedures, and safety precautions observed while testing and operating the power supply.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
An RNA Helicase, DDX1, Interacting with Poly(A) RNA and Heterogeneous Nuclear Ribonucleoprotein K (2002)

Heterogeneous nuclear ribonucleoprotein K (hnRNP K) is a multifunctional protein known to be involved in the regulation of transcription, translation, nuclear transport, and signal transduction. To systematically obtain insight into mechanisms of hnRNP K activities, we set out to identify protein factors that interact with hnRNP K by using glutathione S-transferase-hnRNP K affinity chromatography followed by liquid chromatography/mass spectrometry/mass spectrometry analysis. Several partner proteins in the K562 cell lysates were identified through this method. One of them is a DEAD box-containing putative RNA helicase, DDX1. In vitro binding and co-immunoprecipitation studies confirmed the protein-protein interaction between hnRNP K with DDX1, and the region spanning amino acids 1-276 of hnRNP K is apparently responsible for its physical interaction with DDX1. Interestingly, their interaction was disrupted by the addition of poly(C), poly(A), and poly(U) RNA substrates. We found that DDX1 was a homopolymeric poly(A) RNA-binding protein. On the other hand, the ATPase activity of the purified recombinant DDX1 protein was stimulated by these homopolymeric RNAs and yeast total RNA but not by DNA. Moreover, the immunoprecipitated DDX1 complex but not purified DDX1 can unwind double-stranded RNA having single-stranded poly(A) overhangs.
Fast 3D Map Reconstruction Using Dense Visual Simultaneous Localization and Mapping Based on Unmanned Aerial Vehicle (2018)

Traditional 3D map reconstruction methods based on unmanned aerial (UA) always relies on multi-camera optical equipment or additional space positioning equipment. All of these restrict the UA's application scenarios to some extent. Visual simultaneous localization and mapping (VSLAM), using the camera as the only external sensor, can construct a 3D map of its spatial environment while recording its own localization. This paper proposes a technique of fast 3D map reconstruction based on UAs by using VSLAM, with parallel computing based on CUDA, to achieve fast dense reconstruction based on a UA platform. This research belongs to one of the emerging but very exciting application areas using UAs. It helps to expand the application scope of UAs to some extent. From the experiments, it is demonstrated that the methodology presented in this paper works well, and could be applied to real world applications.
Infrared transparent and electrically conductive thin film of In2O3 (1983)

High quality infrared (1–12 μ) transparent and electrically conductive thin films based on thermal reactively evaporated In2O3 have been developed. Optical constants of these films have been obtained by the use of an iteration technique, which involves the formulas for multiple transmission and reflection. The details of the film deposition process and the theoretical foundation leading to its development are discussed in this letter. It has been found that the transparency and conductivity of these films are primarily due to their high electron mobility coupled with an appropriate electron concentration. A multilayer design of a bandpass induced transmission and antireflection coating has been developed and implemented on ZnS and ZnSe substrates for the wavelength range of 8–12 μ. Typical transmittance of 65%–80% with a film sheet resistance of 20–50 Ω/⧠ has been achieved. Such a design is applicable to forward-looking infrared systems where a window having both high electromagnetic (rf and microwave) shielding effectiveness and good infrared transparency are required. The properties of these films lend themselves to many other potential applications.
The Automation of Structural Group Contribution Methods in the Estimation of Physical Properties (1968)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Automation of Structural Group Contribution Methods in the Estimation of Physical PropertiesNeil Jochelson, C. Michael Mohr, and Robert C. ReidCite this: J. Chem. Doc. 1968, 8, 2, 113–122Publication Date (Print):May 1, 1968Publication History Published online1 May 2002Published inissue 1 May 1968https://pubs.acs.org/doi/10.1021/c160029a015https://doi.org/10.1021/c160029a015research-articleACS PublicationsRequest reuse permissionsArticle Views66Altmetric-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
The Empirical Effect of Gaussian Noise in Undersampled MRI Reconstruction (2017)

In Fourier-based medical imaging, sampling below the Nyquist rate results in an underdetermined system, in which a linear reconstruction will exhibit artifacts. Another consequence is lower signal-to-noise ratio (SNR) because of fewer acquired measurements. Even if one could obtain information to perfectly disambiguate the underdetermined system, the reconstructed image could still have lower image quality than a corresponding fully sampled acquisition because of reduced measurement time. The coupled effects of low SNR and underdetermined system during reconstruction makes it difficult to isolate the impact of low SNR on image quality. To this end, we present an image quality prediction process that reconstructs fully sampled, fully determined data with noise added to simulate the SNR loss induced by a given undersampling pattern. The resulting prediction image empirically shows the effects of noise in undersampled image reconstruction without any effect from an underdetermined system. We discuss how our image quality prediction process simulates the distribution of noise for a given undersampling pattern, including variable density sampling that produces colored noise in the measurement data. An interesting consequence of our prediction model is that recovery from an underdetermined nonuniform sampling is equivalent to a weighted least squares optimization that accounts for heterogeneous noise levels across measurements. Through experiments with synthetic and in vivo datasets, we demonstrate the efficacy of the image quality prediction process and show that it provides a better estimation of reconstruction image quality than the corresponding fully sampled reference image.
Effect of eicosapentaenoic and docosahexaenoic acid on resting and exercise-induced inflammatory and oxidative stress biomarkers: a randomized, placebo controlled, cross-over study (2009)

EPA/DHA supplementation increases blood levels of these fatty acids and results in decreased resting levels of inflammatory biomarkers in exercise-trained men, but does not appear necessary for exercise-induced attenuation in either inflammation or oxidative stress. This may be due to the finding that trained men exhibit a minimal increase in both inflammation and oxidative stress in response to moderate duration (60 minute) aerobic exercise.
Biofilms in chronic rhinosinusitis (2010)

Bacterial biofilms are highly organized structures composed of communities of bacteria encased within a protective extracellular matrix. If bacterial biofilms are the cause of certain cases of CRS, then the treatment paradigms will have to be changed. Novel nonantimicrobial therapies may have clinical applications to prevent and destabilize biofilms. We believe that ultimately methods to reduce sinonasal inflammation and protect cilia will be the first step in blocking the attachment and aggregation of bacteria that would otherwise start biofilm formation. Once more is known about the role of biofilms in CRS, new therapies will undoubtedly play a greater role and change our treatment paradigms.
Plastic electrets and their applications (1953)

The electret effect in high polymer plastics is described and compared to published data on the behavior of wax electrets. The results indicate the existence of large ionic polarizations giving rise to an essentially constant external electric field. Some engineering applications of electrets are discussed and limitations presented in terms of current knowledge of electret phenomena.
A study of pipeline architectures for high-speed synchronous DRAMs (1997)

The performances of SDRAMs with different pipeline architectures are examined analytically on the basis of the time required to refill the on-chip cache of a Pentium CPU. The analysis shows that the cycle time of the conventional pipeline structures cannot be reduced because of its difficulty in distributing the access time evenly to each pipeline stage of the column address access path. On the contrary, the wave pipeline architecture can make the access path evenly divided and can increase the number of pipeline stages to achieve the shortest cache refill time. But the wave congestion at the output terminal of the wave pipeline path caused by access time fluctuation narrows the valid time window. The parallel registered wave pipeline architecture can remove the effect of access time fluctuation so that the cycle time is defined only by the data pulse width. If the data pulse width t/sub w/<2 ns, even 500-MHz clock frequency can be obtained.
Selective Binding of Lectins to Embryonic Chicken Vasculature (2003)

Chicken embryos are an excellent model system for studies related to vascular morphogenesis. Development in ovo allows manipulations otherwise difficult in mammals, and the use of chicken-quail chimeras offers an additional advantage to this experimental system. Furthermore, the chicken chorioallantoic membrane has been extensively used for in vivo assays of angiogenesis. Surprisingly, few markers are available for a comprehensive visualization of the vasculature. Here we report the use of lectins for identification of embryonic chicken blood vessels. Nine lectins were evaluated using intravascular perfusion and directly on sections. Our results indicate that Lens culinaris agglutinin, concanavalin A, and wheat germ agglutinin can be used effectively for visualization of vessels of early chicken embryos (E2.5-E4). At later developmental stages, Lens culinaris agglutinin is a better choice because it displays equal affinity for the endothelia of arteries, veins, and capillaries. The findings presented here expand our understanding of lectin specificity in the endothelium of avian species and provide information as to the use of these reagents to obtain comprehensive labeling of the embryonic and chorioallantoic membrane vasculature.
The complete amino acid sequence of chicken skeletal-muscle enolase (1986)

The complete amino acid sequence of chicken skeletal-muscle enolase, comprising 433 residues, was determined. The sequence was deduced by automated sequencing of hydroxylamine-cleavage, CNBr-cleavage, o-iodosobenzoic acid-cleavage, clostripain-digest and staphylococcal-proteinase-digest fragments. The presence of several acid-labile peptide bonds and the tenacious aggregation of most CNBr-cleavage fragments meant that a commonly used sequencing strategy involving initial CNBr cleavage was unproductive. Cleavage at the single Asn-Gly peptide bond with hydroxylamine proved to be particularly useful. Comparison of the sequence of chicken enolase with the two yeast enolase isoenzyme sequences shows that the enzyme is strongly conserved, with 60% of the residues identical. The histidine and arginine residues implicated as being important for the activity of yeast enolase are conserved in the chicken enzyme. Secondary-structure predictions are analysed in an accompanying paper [Sawyer, Fothergill-Gilmore & Russell (1986) Biochem. J. 236, 127-130].
On‐line prediction of fermentation variables using neural networks (1990)

This article presents an introduction to the use of neural network computational algorithms for the dynamic modeling of bioprocesses. The dynamic neural model is used for the prediction of key fermentation variables. This relatively hew method is compared with a more traditional prediction technique to judge its performance for prediction. Illustrative simulation results of a continuous stirred tank fermentor are used for this comparison. It is shown that neural network models are accurate with a certain degree of noise immunity. They offer the distinctive ability over more traditional methods to learn very naturally complex relationships without requiring the knowledge of the model structure.
Mandible position and activation of submental and masseter muscles during sleep (1991)

Movement of the mandible could influence pharyngeal airway caliber because the mandible is attached to the tongue and to muscles that insert on the hyoid bone. In normal subjects and patients with obstructive sleep apnea (OSA) we measured jaw position during sleep with strain gauges, as well as masseter and submental electromyograms, airflow, esophageal pressure, oximetry, electroencephalograms, and electrooculograms. Jaws of patients with OSA were open more than those of normal subjects at end expiration and opened further at end inspiration, particularly at the termination of apneas when the masseter and submental muscles contracted. Masseter activation occurred only in patients with OSA and in a pattern similar to that of submental muscles. Jaw opening at end expiration could narrow the upper airway, whereas opening at end inspiration could reflect efforts to expand the airway with tracheal tug and with submental muscle activation and efforts to open the mouth to allow mouth breathing. Masseter contraction does not close the jaw but may serve to stabilize it.
l-Proline-modified magnetic nanoparticles (LPMNP): a novel magnetically separable organocatalyst (2014)

This study offers a new and efficient method for the stabilization of L-proline moieties on magnetic nanoparticles in order to prepare a novel magnetic recyclable organocatalyst for application in organic transformations. The catalytic activity of this heterogeneous organocatalyst was evaluated in the condensation reaction of indoles and aldehydes for the synthesis of bis(indolyl)methanes in water.
Advanced Cast Aluminum Alloys (2009)

Abstract : A recent advancement in cast aluminum alloys has demonstrated that complex shapes can be cast from a microalloyed Al-Cu alloy in dry sand molds with chills and that these castings can be heat treated to produce mechanical and physical properties nearly comparable to wrought 2519 aluminum alloy. Given this initial level of success, further research has been focused on improving this microalloyed Al-Cu alloy so that the mechanical properties consistently meet or exceed those of wrought 2519 alloy. Further, new research has been initiated on ultra-high strength, microalloyed Al-Zn-Mg-Cu alloys with the goal of producing complex castings with properties significantly better than wrought 2519 aluminum alloy and equivalent to or better than the best 7000 series wrought alloys. The development of the appropriate chemistries, casting practices and heat treatments are described in this paper.