gebhart/patrepeval huggingface dataset:
Acetylene Chemistry (1948)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAcetylene ChemistryW. E. Hanford and D. L. FullerCite this: Ind. Eng. Chem. 1948, 40, 7, 1171–1177Publication Date (Print):July 1, 1948Publication History Published online1 May 2002Published inissue 1 July 1948https://pubs.acs.org/doi/10.1021/ie50463a003https://doi.org/10.1021/ie50463a003research-articleACS PublicationsRequest reuse permissionsArticle Views726Altmetric-Citations35LEARN 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
MR elastographic methods for the evaluation of plantar fat pads: preliminary comparison of the shear modulus for shearing deformation and compressive deformation in normal subjects (2006)

MR elastography (MRE) images the intrinsic mechanical properties of soft tissues; e.g., the shear modulus, μ. The μ of the plantar soft tissues is important in understanding the mechanisms whereby the forces induced during normal motion produce ulcers that lead to amputation in diabetic feet. We compared the compliance of the heel fat pad to compressive forces and to shearing forces. The design of prosthetics to protect the foot depends on the proper understanding of the mechanisms inducing damage. In the heel fat pads of six normal subjects, between 25 and 65 years of age, the μ for deformation perpendicular to the direction of weight bearing is similar but not identical to that determined for deformation along the weight bearing axis. The average difference between μ along the weight bearing axis and μ perpendicular to the weight bearing axis, is well correlated with age (Correlation Coefficient = 0.789). The p-value for the data being random was 0.0347 indicating that the observed difference is not likely to be random. The p-value for control points is 0.8989, indicating a random process. The results are suggestive that the high compressive forces imposed during walking damage the heel fat pads over time resulting in softening to compression preferentially over shearing. It is important to validate the observed effect with larger numbers of subjects, and better controls including measures of activity, and to understand if diseases like diabetes increase the observed damage.
Temperature dependence of the dielectric properties of rubber wood (2001)

The effect of temperature on the dielectric properties of rubber wood were investigated in three anisotropic directions-longitudinal, radial, and tangential, and at different measurement frequencies. Low frequency measurements were conducted with a dielectric spectrometer, and high frequencies used microwave applied with open-ended coaxial probe sensors. Dielectric constants and dielectric loss factors were measured at temperatures from 25 to 100°C. A large dielectric dispersion occurred at frequencies less than 10 Hz and at temperatures more than 60°C. The minimum peak value of the dielectric loss factors shifted towards higher frequencies at higher temperatures in all three grain directions. The tangential direction showed the highest activation energy. The dielectric constant decreased as frequency increased from 1 to 10 GHz, and thereafter remained unchanged with additional frequency increases. The dielectric constant exhibited higher values at higher temperatures. The dielectric loss factor showed a peak value at around 10 GHz at 25°C.
Carotid endarterectomy without angiography. (1983)

Three patients with unilateral hemispheric symptoms suggestive of extracranial carotid occlusive disease and one patient with bilateral symptoms who were allergic to radiographic contrast media were studied by pulsed Doppler ultrasonic arteriography and real time spectrum analysis. Four high grade (greater than 50% diameter reduction) internal carotid stenoses and one low grade (less than 50% diameter reduction) stenosis were identified. The noninvasive findings were confirmed at endarterectomy in all five arteries. Pulsed Doppler ultrasonic imaging combined with real time spectrum analysis can accurately quantitate the degree of atherosclerotic stenosis at the carotid bifurcation. Experience with these four patients suggests that these techniques can be used in lieu of angiography to evaluate patients who are unable to undergo standard radiographic examination.
A Novel Radio-Over-Fiber System With Wavelength Reuse for Upstream Data Connection (2007)

We have experimentally demonstrated a novel wavelength reuse scheme for up-link connection in a radio-over-fiber (ROF) system. The dual-mode lightwave generated by optical carrier suppression modulation is separated by an optical interleaver. One of the dual-mode lightwaves is modulated with a baseband data at 2.5 Gb/s. The other lightwave will be used for the optical carrier for the up-link data modulation. There is no additional laser source for the upstream data generation in the base station. By this method, we simplify the configuration of the ROF system and reduce the cost of the system
Drosophila Rac1 controls motor axon guidance (1998)

Previous genetic studies of intersegmental nerve b development have identified several cell-surface proteins required for correct axon guidance to appropriate target muscles. Here we provide evidence that the small GTPase Drac1 also plays a key role in this guidance process. Neuronal expression of the dominant negative mutation Drac1(N17) causes axons to bypass and extend beyond normal synaptic partners. This phenotype is consistently reproduced by pharmacological blockade of actin assembly. Genetic interactions between Drac1(N17) and the receptor-tyrosine phosphatase Dlar suggest that intersegmental nerve b guidance requires the integration of multiple, convergent signals.
High-Speed H.264/AVC CABAC Decoding (2007)

The decoding of context-based adaptive binary arithmetic coding (CABAC) imposes a heavy performance requirement on H.264/AVC decoding systems particularly for large-scale video sequences. As a simple approach of elevating the operating frequency is not sufficient to meet the performance requirement, this paper proposes an efficient approach to accelerate the decoding, which is effective under relatively low operating frequency. Since the CABAC decoding procedure is highly sequential and has strong data dependencies, it is difficult to exploit parallelism and pipeline schemes. The proposed approach resolves the difficulties by modifying the operation chain based on a thorough analysis, eventually enabling both parallel operations and pipelining. More specifically, 1) several context models are simultaneously loaded from memory while context selection is performed in parallel and 2) bin-level pipelining is enabled by employing a small storage to remove structural hazards and data dependencies. Experimental results show that the proposed approach leads to the real-time decoding of HD sequences
Automatic Method for Extraction of Complex Road Intersection Points From High-Resolution Remote Sensing Images Based on Fuzzy Inference (2020)

Automatic extracting road intersection points is essential for applications such as data registration between vector data and remote sensing images, aircraft-assisted navigation. However, at a large scale, it is difficult to quickly and accurately extract road intersection points due to the problems caused by complex structures, geometric texture noise interference. In this context, taking OpenStreetMap (OSM) data as priori knowledge, we propose a method for automatic extraction of complex road intersection points based on fuzzy inference. First, OSM data are analyzed to obtain structural information of intersection points. Local search areas are built around the intersection points. Second, within the local search area, the candidate intersection point set are generated. Meanwhile the input image is segmented using multiresolution segmentation; then we establish a fuzzy rule to infer the road area from the segmentation result. The fuzzy indexes and rules are established for the candidate intersection point set to deduce the road intersection area. Finally, based on the results of the previous step, the road intersection points are extracted based on the line segment constraint, structure matching, and linkage equation. Three sets of high-resolution remote sensing images were used to verify the feasibility of the method. We demonstrate that the correctness and positioning accuracy of this method are superior to those of other methods through contrastive analysis.
ChemInform Abstract: Manganese(II) Complexes Containing the Tridentate Ligands 2,6‐Bis(1‐( phenylimino)ethyl)pyridine, L1, or 2,6‐Bis(1‐(4‐methoxyphenylimino) ethyl)pyridine, L2. The Molecular Structures of Five‐Coordinate ( MnBr2L1) and the Zinc Analogue (ZnCl2L1). (1991)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Alkylation of Indole with β‐Aroylacrylic Acids and Some Studies on the Alkylated Products. (1988)

Abstract The α‐indolyl‐γ‐keto acids (III) are transformed into various heterocycles as shown in the reaction scheme.
Notes on two Japanese species of Tetranychus (Acarina: Tetranychidae). (1989)

Tetranychus ludeni ZACHER, previously referred to T. desertorum BANKS in Japan, was redescribed and figured. And besides, notes on the identification of T. kanzawai KISHIDA were presented.
Biofiltration of Air: A Review (2005)

In this paper we present a review of the existing air pollution control technologies (APCT), when used essentially for the elimination of volatile organic compounds (VOC). The biotechnologies referred to, bioscrubbers, biotrickling filters and biofilters, are also described. A more detailed review of biofiltration is proposed, presenting the most recent and latest developments achieved in the field of bioprocessing. In particular, the influence of the filter bed, the polluted air flowrates, the pollutants, the pressure drop, bed moisture content, temperature, nutrients, pH and the microorganisms are reviewed. Models of biofiltration are also presented.
Monetary Failures of the Great Depression (2008)

This paper argues that mismanagement of the money supply substantially contributed to the economic disaster of The Great Depression. Indeed, from 1929 to the cyclical trough in 1933, the Federal Reserve allowed the money stock to fall by 33% while one-fifth of commercial banks closed and real money income fell 36%. These numbers seem staggering when one considers that the Fed performed few open market operations and even raised the discount rate in 1931 from 1.5% to 3.5%.
Imaging of experimental amyloidosis with <sup>131</sup>i‐labeled serum amyloid p component (1987)

131I-labeled human serum amyloid P component, which was injected into mice with experimentally induced systemic AA amyloidosis and into controls, became specifically localized and was retained in amyloidotic organs. In comparison, it was rapidly and completely eliminated from unaffected tissues and from control animals. Distinctive images of this amyloid-specific deposition of labeled serum amyloid P component were derived from whole body scanning, in vivo, of amyloidotic mice. These findings suggest that such imaging may have applications for the diagnosis and quantitation of amyloid deposits in humans.
Small-Bore Hollow-Glass Waveguides for Broadband, Infrared Transmission (1995)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text James A. Harrington and Yuji Matsuura, "Small-Bore Hollow-Glass Waveguides for Broadband, Infrared Transmission," Optics & Photonics News 6(12), 22-23 (1995) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Interleukin-8 and Leukotriene-B4, but Not Formylmethionyl Leucylphenylalanine, Stimulate CD18-Independent Migration of Neutrophils across Human Pulmonary Endothelial Cells <i>In Vitro</i> (2000)

Although neutrophil migration from the systemic circulation involves the beta2- (or CD18) integrin family, the existence of an alternative, CD18-independent route of neutrophil extravasation to tissues has been demonstrated in animal models. The molecular interactions involved in this alternative migratory route have not yet been characterized. The objective of this study was to assess the CD18-dependency of neutrophil migration across human endothelial cells from an organ known to support CD18-independent migration, the lung, with a view to establishing an in vitro model to facilitate study of CD18-independent migration. Neutrophil migration across human pulmonary artery endothelial cells (HPAECs) in response to three different chemoattractants, formylmethionyl leucylphenyl-alanine (FMLP), interleukin (IL)-8, and leukotriene (LT) B(4), was examined. Results demonstrated that a function-blocking antibody to CD18 decreased FMLP-stimulated migration by 71.7 +/- 4.4% (P < 0.001). In contrast, migration in response to LTB(4) was decreased by only 20.5 +/- 10.2% (P < 0.01), and no significant decrease was observed with migration to IL-8. Neutrophils that migrated to FMLP had 1.7-fold more surface CD11b/CD18 compared with nonmigrated neutrophils (P < 0.01), whereas this integrin complex was not significantly upregulated on neutrophils that had migrated to IL-8 or LTB(4). Further investigation of this migratory route indicated that it did not involve the beta1 integrins (CD29) or the endothelial selectins, E- or P-selectin, nor did it require the activity of either metalloproteinases or neutrophil elastase. These results indicate that neutrophil migration across HPAECs in vitro to IL-8 and LTB(4) is predominantly CD18-independent and provides a much-needed in vitro system for examination of the neutrophil-endothelial interactions involved in this alternative migratory route.
Fatty Acid Composition of <i>Escherichia coli</i> as a Possible Controlling Factor of the Minimal Growth Temperature (1965)

Shaw, Maxwell K. (University of California, Davis), and John L. Ingraham. Fatty acid composition of Escherichia coli as a possible controlling factor of the minimal growth temperature. J. Bacteriol. 90:141-146. 1965.-If Escherichia coli ML30 is shifted from 37 to 10 C during exponential growth in glucose minimal medium, a 4.5-hr lag results. During this lag, the proportion of unsaturated fatty acids increases in the cellular lipids. However, the adjustment of the fatty acid composition does not appear to be prerequisite to growth at 10 C. If shifts are made to 10 C into minimal medium containing glucose after starvation for glucose at 37 C for 0.5 and 16 hr, the lag periods at 10 C are 4.5 and 6 hr, respectively. Withholding glucose during the lag periods does not affect the duration of the lag periods, but no change in fatty acid composition occurs if glucose is not present. Supplementing the medium with glucose after the lag period permits immediate growth at 10 C; however, the fatty acid composition is still typical of cells grown at 37 C. It is concluded that the fatty acid composition of cells does not determine the minimal temperature of growth.
Face recognition by stepwise nonparametric margin maximum criterion (2005)

Linear discriminant analysis (LDA) is a popular feature extraction technique in face recognition. However, it often suffers from the small sample size problem when dealing with the high dimensional data. Moreover, while LDA is guaranteed to find the best directions when each class has a Gaussian density with a common covariance matrix, it can fail if the class densities are more general. In this paper; a new nonparametric linear feature extraction method, stepwise nonparametric margin maximum criterion (SNMMC), is proposed to find the most discriminant directions, which does not assume that the class densities belong to any particular parametric family and does not depend on the non- singularity of the within-class scatter matrix neither. On three datasets from ATT and FERET face databases, our experimental results demonstrate that SNMMC outperforms other methods and is robust to variations of pose, illumination and expression.
Fabrication and thermal properties of Al2TiO5/Al2O3 composites (2010)

Al2TiO5/Al2O3 composites with various Al2O3 contents were prepared. The phase compositions and microstructure evolution of the samples were observed via XRD and SEM, respectively. The thermal properties, including thermal expansion ratios and the erosion resistance of the Al2TiO5/Al2O3 composites to molten Al, were investigated. The experimental results show that the relative densities of the prepared Al2TiO5/Al2O3 composites are proportional to the Al2O3 content, and that the composite samples with high Al2TiO5 contents have good erosion resistance to molten Al.
SFC-Checker: Checking the correct forwarding behavior of Service Function chaining (2016)

Network middleboxes are difficult to manage and troubleshoot, due to their proprietary monolithic design. Moving towards Network Functions Virtualization (NFV), virtualized middlebox appliances can be more flexibly instantiated and dynamically chained, making troubleshooting even more difficult. To guarantee carrier-grade availability and minimize outages, operators need ways to automatically verify that the deployed network and middlebox configurations obey higher level network policies. In this paper, we first define and identify the key challenges for checking the correct forwarding behavior of Service Function Chains (SFC). We then design and develop a network diagnosis framework that aids network administrators in verifying the correctness of SFC policy enforcement. Our prototype - SFC-Checker can verify stateful service chains efficiently, by analyzing the switches' forwarding rules and the middleboxes' stateful forwarding behavior. Built on top of the network function models we proposed, we develop a diagnosis algorithm that is able to check the stateful forwarding behavior of a chain of network service functions.
Mutual Injection-Locking and Coherent Combining of Two Individual Fiber Lasers (2008)

In this paper, mutual injection-locking and coherent combining are demonstrated with two individual erbium-doped fiber lasers that were coupled by two fiber splitters. Mutual injection-locking theory of two lasers is analyzed. In the free-running state, the far-field beam profile is a simple intensity superposition, as expected of two incoherent beams. Under mutual injection-locking, interference fringes with high contrast ratio are obtained, and the two fiber lasers lase at the same wavelength with a stable output power. We have found that the two fiber lasers are always in out-of-phase mode, which is consistent with theoretical analysis. Coherent beam combining by mutual injection-locking is realized without the need for length or amplitude control. This method can be easily scaled to combine more beams.
Oligonucleotides stimulate genomic alterations of <i>Legionella pneumophila</i> (2011)

Genetic variation generates diversity in all kingdoms of life. The corresponding mechanisms can also be harnessed for laboratory studies of fundamental cellular processes. Here we report that oligonucleotides (oligos) generate mutations on the Legionella pneumophila chromosome by a mechanism that requires homologous DNA, but not RecA, RadA or any known phage recombinase. Instead we propose that DNA replication contributes, as oligo-induced mutagenesis required ≥ 21 nucleotides of homology, was strand-dependent, and was most efficient in exponential phase. Mutagenesis did not require canonical 5' phosphate or 3' hydroxyl groups, but the primosomal protein PriA and DNA Pol I contributed. After electroporation, oligos stimulated excision of 2.1 kb of chromosomal DNA or insertion of 18 bp, and non-homologous flanking sequences were also processed. We exploited this endogenous activity to generate chromosomal deletions and to insert an epitope into a chromosomal coding sequence. Compared with Escherichia coli, L. pneumophila encodes fewer canonical single-stranded exonucleases, and the frequency of mutagenesis increased substantially when either its RecJ and ExoVII nucleases were inactivated or the oligos modified by nuclease-resistant bases. In addition to genetic engineering, oligo-induced mutagenesis may have evolutionary implications as a mechanism to incorporate divergent DNA sequences with only short regions of homology.
Research and Development of a Hybrid Rapid Manufacturing Process (2001)

This paper presents the research and development of a hybrid rapid manufacturing process being developed at the University of Missouri-Rolla. This process includes a laser deposition and a 5- axis CNC milling system. By combining laser deposition and machining processes, the resulting hybrid process can provide greater build capability and better accuracy and surface finish. The hybrid process can build some features that are difficult to build in using a purely deposition processes. The issues and related approaches in the research and development of the hybrid deposition-machining process, including laser deposition process, system design and integration, process planning, and sensor selection and control, are discussed.
Nitric-Oxide Releasing Molecules : A New Class of Drugs with Several Major Indications (2002)

Nitric oxide (NO) deficiency has been implicated in many pathological and physiological processes within the mammalian body providing a plausible biologic basis for the use of NO replacement therapy in these conditions. Exogenous NO sources may hopefully constitute a powerful way to supplement NO when the body cannot generate enough for normal biological functions. This theory has opened up the possibility of designing new drugs that are capable of delivering NO into tissues and the bloodstream in a sustained and controlled manner. This objective has been reached by grafting an organic nitrate structure onto existing molecules with various spacers such as aliphatic or aromatic chain, with different degree of complexity. This approach has led to the synthesis of several new chemical entities in various pharmacological classes, whose profile seems to challenge the parent drug not only on the basis of new pharmacological properties but also on a better toxicological and safety profile. In this article, general aspects on NO and NO donors are reviewed. Major focus is placed upon recent developments of novel NO donors, NO releasing device(s) as well as innovative improvements to conventional NO donors. Several examples are given in some important therapeutic indications such as cardiovascular diseases (NO-aspirin), pain and inflammation (NO-paracetamol), osteoporosis and urinary incontinence (NO flurbiprofen with aliphatic spacer), Alzheimer s disease (NO-flurbiprofen with anti-oxidant spacer), respiratory disorders (NO-steroids).