gebhart/patrepeval huggingface dataset:
Electrochemical investigation of anticorrosive properties of nano-crystalline Zn0.9Co0.1O green ceramic pigments synthesized by microwave-assisted gel combustion method (2011)

Department of Nanotechnology, Institute for Color Science and Technology (ICST), 55 Vafamanesh Ave.<br> HosseinAbad Square, Pasdaran St, 1668814811, Tehran, Iran<br> <em>E-mail</em>: rasouli@icrc.ac.ir Fax: 98-21-229-47537<br> Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran<br> <em>E-mail</em> : iman danaee@yahoo.com<br> Department of Chemistry, Payame Noor University, Zip code 31578-36899, Karaj, Iran<br> <em>Manuscript received 31 May 2010, accepted 29 December 2010</em> In present work, Zn<sub>0.9</sub>Co<sub>0.1</sub>O green ceramic pigments were synthesized by microwave-assisted gel combustion method. Two different fuels; citric acid and glycine were used. Products were characterized by X-ray diffraction, Fourier transform of infrared, Scanning-Transition Electron Microscopy and diffuse reflectance. The anticorrosive properties of the obtained pigments were investigated by electrochemical impedance spectroscopy techniques. Results have shown that by citric acid a calcination step was needed to obtain the desired phase whereas by glycine pure ZnO phase was obtained directly. Transition Electron Microscopy demonstrated the quasi-spherical and rode-like particles with mean particle size of 70 and ISO nm for glycine and citric acid respectively. The corrosion performances of the coating in 3% w/v NaCI solution were evaluated by electrochemical impedance spectroscopy (EIS) and polarization measurements. According In the measurements of EIS and electrochemical polarization, the coatings with glycine-based pigment showed 11 highest corrosion resistance among the prepared coatings. It was revealed from polarization tests that higher corrosion potential and lower corrosion current was obtained for coatings with glycine-based pigment.
Ab InitioCalculations of the Quasiparticle and Absorption Spectra of Clusters: The Sodium Tetramer (1995)

We report the first ab initio quasiparticle calculation in a real cluster ${\mathrm{Na}}_{4}$ within Hedin's $\mathrm{GW}$ approximation for the valence electron self-energy. Our approach avoids the summations over empty states, and also eliminates the problem of residual interactions between the periodic images. Self-energy corrections open the local density approximation gap by more than 2 eV; finite-size effects on screening are shown to play an important role. The absorption spectrum calculated by including excitonic effects using our ab initio screened interaction gives a good account of the experimental photodepletion data.
Anthocyanins from Black Soybean Seed Coats Inhibit UVB-Induced Inflammatory Cylooxygenase-2 Gene Expression and PGE2 Production through Regulation of the Nuclear Factor-κB and Phosphatidylinositol 3-Kinase/Akt Pathway (2008)

Ultraviolet (UV) radiation can cause inflammatory changes and may further contribute to skin carcinogenesis. Anthocyanins are known to be powerful antioxidants that help protect plants from UV damage. Recently, we isolated anthocyanins from black soybean [Glycine max (L.) Merr] seed coats. Thus, we investigated the protective effect of anthocyanins from black soybean seed coats on UVB radiation-induced inflammatory responses and the molecular mechanism responsible for regulation of apoptosis and inflammatory responses. Anthocyanins inhibited UVB-induced cylooxygenase-2 (COX-2) and PGE2 production through a nuclear factor-κB-dependent pathway and regulation of the PI3 kinase/Akt pathway activated by UVB in a human keratinocyte cell line, HaCaT. Topical application of anthocyanins prior to UVB irradiation of hairless mice also inhibited induction of COX-2 and PGE2. In conclusion, it is suggested that anthocyanins from the seed coat of black soybeans can be used as a useful drug to modulate oxidative disorders including UVB-induced inflammation.
A new frequency domain approach to time-scale expansion of audio signals (2002)

We present a new algorithm for time-scale expansion of audio signals that comprises: time interpolation, frequency-scale expansion and modification of a spectral representation of the signal. The algorithm relies on an accurate model of signal analysis and synthesis, and was constrained to a non-iterative modification of the magnitudes and the wrapped phases of the relevant sinusoidal components of the signal. The structure of the algorithm is described and its performance is illustrated. A few examples of time-expanded wideband speech can be found on the Internet.
Ni-Catalyzed Enantioselective C-Acylation of α-Substituted Lactams (2016)

A new strategy for catalytic enantioselective C-acylation to generate α-quaternary-substituted lactams is reported. Ni-catalyzed three-component coupling of lactam enolates, benzonitriles, and aryl halides produces β-imino lactams that then afford β-keto lactams by acid hydrolysis. Use of a readily available Mandyphos-type ligand and addition of LiBr enable the construction of quaternary stereocenters on α-substituted lactams to form β-keto lactams in up to 94% ee.
Zinc signals and immune function (2013)

For more than 50 years, it has been known that zinc deficiency compromises immune function. During this time, knowledge about the biochemistry of zinc has continued to grow, but only recent years have provided in-depth molecular insights into the multiple aspects of zinc as a regulator of immunity. A network based on ZnT and ZIP proteins for transport and metallothionein for storage tightly regulates zinc availability, and virtually all aspects of innate and adaptive immunity are affected by zinc. In vivo, zinc deficiency alters the number and function of neutrophil granulocytes, monocytes, natural killer (NK)-, T-, and B-cells. T cell functions and balance between the different subsets are particularly susceptible to changes in zinc status. This article focuses in particular on the main mechanisms by which zinc ions exert essential functions in the immune system. On the one hand, this includes tightly protein bound zinc ions serving catalytic or structural functions in a multitude of different proteins, in particular enzymes and transcription factors. On the other hand, increasing evidence arises for a regulatory role of free zinc ions in signal transduction, especially in cells of the immune system. Identification of several molecular targets, including phosphatases, phosphodiesterases, caspases, and kinases suggest that zinc ions are a second messenger regulating signal transduction in various kinds of immune cells.
Transcriptome Analysis at the Single‐Cell Level Using SMART Technology (2016)

RNA sequencing (RNA-seq) is a powerful method for analyzing cell state, with minimal bias, and has broad applications within the biological sciences. However, transcriptome analysis of seemingly homogenous cell populations may in fact overlook significant heterogeneity that can be uncovered at the single-cell level. The ultra-low amount of RNA contained in a single cell requires extraordinarily sensitive and reproducible transcriptome analysis methods. As next-generation sequencing (NGS) technologies mature, transcriptome profiling by RNA-seq is increasingly being used to decipher the molecular signature of individual cells. This unit describes an ultra-sensitive and reproducible protocol to generate cDNA and sequencing libraries directly from single cells or RNA inputs ranging from 10 pg to 10 ng. Important considerations for working with minute RNA inputs are given. © 2016 by John Wiley & Sons, Inc.
TESTING SUNSCREENS USING SUNLIGHT AND PHOTOGRAPHY* (1969)

SUMMARY.— A method to evaluate sunscreens in vitro is described. It employs light, photography and densitometry. The measurements are compared and analysed with the assurance that an equal amount of light bombards the sensor for an equal length of time, passing through a uniformly spread barrier of sunscreening material, to a film of uniform spectral sensitivity. The protection provided from mid-day sunlight and artificial erythemal light by 9 agents is compared and correlated.
Author’s reply (2009)

The Journal of Bone and Joint Surgery. British volumeVol. 91-B, No. 8 CorrespondenceFree AccessAuthor’s replyM. CASHIN, H. UHTHOFF, P. E. BEAULEM. CASHINResidentSearch for more papers by this author, H. UHTHOFFProfessor EmeritusSearch for more papers by this author, P. E. BEAULEAssociate ProfessorSearch for more papers by this authorPublished Online:1 Aug 2009https://doi.org/10.1302/0301-620X.91B7.22538AboutSectionsPDF/EPUB ToolsDownload CitationsTrack CitationsPermissionsAdd to Favourites ShareShare onFacebookTwitterLinked InRedditEmail Sir,The authors would like to thank Mr Dodds for his interest in our paper. In response to his letter, we have answered the questions regarding the methodology of our study. Each fetal specimen was from a different hip. None of these hips was bilateral, i.e. from the same specimen. The ages of the fetal specimens ranged from eight weeks to full term. One specimen of each of the following ages was analysed: 8 to 9.5 weeks, 10 to 11 weeks, 12 weeks, 12.5 to 13 weeks, 13 weeks, 14 weeks, 15 to 16 weeks, 17 weeks, 19 to 20.5 weeks and 36 weeks.We observed skeletal malformations in approximately 10% of over 400 specimens in our collection. However, skeletal malformations were not observed in any of the specimens used in the current study. Each specimen was independently analysed by the second author. Finally, the specimens were collected between 1960 and 1973, during which time ethical committees did not exist in Canada. Provincial law required that all embryologic and fetal specimens were to be kept by the pathology department. This law dictated that research could not be conducted on these specimens. After 1973, research was permitted.FiguresReferencesRelatedDetailsCited byThe limbus in developmental dysplasia of the hip23 December 2021 | Medicine, Vol. 100, No. 51 Vol. 91-B, No. 8 Metrics History Published online 1 August 2009 Published in print 1 August 2009 InformationCopyright © 2009, The British Editorial Society of Bone and Joint Surgery: All rights reservedPDF download
Gender prediction on a real life blog data set using LSI and KNN (2017)

Gender prediction on social media data set is usually tackled as a text classification problem and can be solved using machine learning methods such as K-nearest neighbor algorithm (KNN). However, KNN is computationally costly due to its lazy learning pattern; it does not perform well when the dimension of feature space is high. Dimension reduction methods are thus introduced and integrated into KNN to save the computation time. In this paper we proposed an approach which combines the Latent Semantic Indexing (LSI) method to KNN to predict the gender based on a real life collection of posts on actual blog pages. Its effectiveness in processing large scale and high dimensional data is demonstrated by experimental results.
Frozen Section Detection of Lymph Node Metastases in Prostatic Carcinoma: Accuracy in Grossly Uninvolved Pelvic Lymphadenectomy Specimens (1986)

We reviewed our frozen section experience with 310 pelvic lymphadenectomy specimens during the last 5 years. A total of 40 patients (12.9 per cent) had positive lymph nodes on permanent section. In 6 of these patients the lymph nodes were involved grossly and in 34 there were only microscopic metastases. Intraoperative assessment of lymph node involvement classified correctly 299 patients (96.5 per cent of the total number). Whereas previous studies have demonstrated a failure on frozen section to detect all but a few microscopic metastases, we were able by frozen section to identify metastases in 23 of 34 patients (67.6 per cent) with grossly uninvolved lymph nodes. Of the positive frozen sections 16 were in patients with unilateral metastases only, and in 13 of these cases frozen section identified the only positive node present. The average diameter of the metastases found on frozen section was 2.4 mm. In 11 of the 34 patients frozen section did not disclose any of the metastases present on permanent sections (average 1.4 mm.) (false negative rate 3.5 per cent of all patients, 27.5 per cent of those with positive nodes and 32.3 per cent of those with microscopic involvement of lymph nodes only). Ten patients had unilateral metastases and 1 had bilateral involvement. The ability to identify the majority of microscopic metastases, given their adverse effect on prognosis, supports the usefulness of routine frozen section on grossly uninvolved pelvic lymph nodes as a staging procedure before radical prostatectomy.
Theoretical interpretation of the enhanced single-mode stability in extended cavity VCSELs (2002)

Paraxial eigenmode analysis demonstrates that the extended cavity stability follows from the geometric scaling of the diffractive cavity losses; the same principle also explains the narrow aperture stability. Because diffraction losses scale as (L/b)/sup 2/ = (L/spl lambda///spl pi/w/sub o//sup 2/)/sup 2/, one can enhance diffraction to differentiate thresholds among modes either by shrinking the mode waist w/sub o/ (smaller aperture) or by extending the cavity length L. The second approach does not limit the vertical cavity semiconductor laser (VCSEL) output power. Our predictions agree with experimental trends, and suggest that diffraction limited modes apply to extended cavity VCSELs, since guided mode theory (effective index or thermal lensing) does not allow strong stability dependence on cavity length. The extended length stabilization holds when factors other than diffraction (such as mode wing clipping or aperture scattering) significantly contribute to cavity losses.
Role of soluble adhesion molecules in the pathogenesis of hypertensive vascular lesions in obesity (2003)

Metabolic syndrome (MS) carries of a number of risk factors for some patients with cardiovascular (CV) diseases. These risk factors, including isulin resistence, dyslipidermia, hypertension and obesity, increase the risk of the development of DM and multiply the risk of CV diseases.
Periodic-modulation based blind channel identification for single-carrier block transmission with frequency-domain equalization (2005)

We propose a periodic-modulation based blind channel identification scheme for single-carrier block transmission with frequency-domain equalization. The proposed approach relies on the block system model and exploits the circulant channel matrix structure after the cyclic prefix is removed. It is shown that the set of linear equations relating the autocorrelation matrix of the block received signal and the product channel coefficients can be rearranged into one with a distinctive block circulant structure. The identification equations thus obtained lead to a very simple identifiability condition, as well as a natural formulation of the optimal modulating sequence design problem which, based on the block circulant data structure, can be cast as a constrained quadratic problem that allows for a simple closed-form solution. The optimal sequence is shown to result in a consistent channel estimate irrespective of white noise perturbation. Simulation results are used for illustrating the performance of the proposed method.
The distance of the gluteal nerve in relation to anatomical landmarks: an anatomic study (2017)

The direct anterior approach for total hip arthroplasty minimizes the risk of injuring the superior gluteal nerve, which may result in a gluteal insufficiency. Special care should be paid on avoiding overstretching the tensor fasciae latea muscle using minimum force on retractors during surgery and by taking care of the entrance point of the superior gluteal nerve to the tensor fasciae latae.
Electrothermal metallic furnace atomic absorption spectrometry (2017)

EMFAAS: a Joule-effect atomization strategy for atomic absorption which does not require protective gases.
Preface: 41st Review of Progress in Quantitative Nondestructive Evaluation (2015)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Leonard J. Bond, Dale E. Chimenti; Preface: 41st Review of Progress in Quantitative Nondestructive Evaluation. AIP Conf. Proc. 31 March 2015; 1650 (1): 1–2. https://doi.org/10.1063/1.4917288 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search
Interactive illustrative visualization of hierarchical volume data (2010)

Figure 1: Hierarchical visualization of segmented head and neck. The cervical curve is focused by showing its relative position in the neck and highlighting its substructures. In scientific visualization the underlying data often has an inherent abstract and hierarchical structure. Therefore, the same dataset can simultaneously be studied with respect to its characteristics in the three-dimensional space and in the hierarchy space. Often both characteristics are equally important to convey. For such scenarios we explore the combination of hierarchy visualization and scientific visualization, where both data spaces are effectively integrated. We have been inspired by illustrations of species evolutions where hierarchical information is often present. Motivated by these traditional illustrations, we introduce integrated visualizations for hierarchically organized volumetric datasets. The hierarchy data is displayed as a graph, whose nodes are visually augmented to depict the corresponding 3D information. These augmentations include images due to volume raycasting, slicing of 3D structures, and indicators of structure visibility from occlusion testing. New interaction metaphors are presented that extend visualizations and interactions, typical for one visualization space, to control visualization parameters of the other space. Interaction on a node in the hierarchy influences visual representations of 3D structures and vice versa. We integrate both the abstract and the scientific visualizations into one view which avoids frequent refocusing typical for interaction with linked-view layouts. We demonstrate our approach on different volumetric datasets enhanced with hierarchical information.
Femtocell networks: a survey (2008)

The surest way to increase the system capacity of a wireless link is by getting the transmitter and receiver closer to each other, which creates the dual benefits of higher-quality links and more spatial reuse. In a network with nomadic users, this inevitably involves deploying more infrastructure, typically in the form of microcells, hot spots, distributed antennas, or relays. A less expensive alternative is the recent concept of femtocells - also called home base stations - which are data access points installed by home users to get better indoor voice and data coverage. In this article we overview the technical and business arguments for femtocells and describe the state of the art on each front. We also describe the technical challenges facing femtocell networks and give some preliminary ideas for how to overcome them.
Synthesis and rheological study of some maleic acid and fumaric acid stereoregular polyesters, 10. Synthesis and characterization of α,ω-dihydroxyoligo(alkylene maleate)s (1998)

alpha,omega-Dihydroxyoligo(alkylene maleate)s with molecular weights ranging from 1500 to 4000 were prepared by polycondensation, in 1-methyl-2-pyrrolidone at 105 degrees C, of potassium maleate and 1,4-dibromobutane, 1,6-dibromohexane or 1,8-dibromooctane in the presence of 2-bromoethanol. The structure of oligomers was checked by H-1 and C-13 NMR spectroscopy. In most cases the mean functionality of oligomers is reasonably close to two.
The C-terminal sequences of the heavy chains of human immunoglobulin G myeloma proteins of differing isotopes and allotypes (1967)

The sequences of the C-terminal octadecapeptides obtained by cyanogen bromide cleavage of the gamma-chains of myeloma proteins of the four subclasses, and a urinary heavy-chain-disease protein, have been determined. Although the sequences were markedly homologous, unique replacements were identified that distinguished between the gamma(2b), gamma(2c) and gamma(2d) subclasses. The data are in accord with the postulated existence of four genetic loci or cistrons, these having arisen by the process of gene duplication.
Effect of angiotensin converting enzyme inhibition in renovascular hypertension (1989)

The unique ability of angiotensin converting enzyme (ACE) inhibitors to inhibit the generation of angiotensin II has made them very useful agents for treating patients with renovascular hypertension. Their efficacy in lowering blood pressure in this type of secondary hypertension is now well established. However, episodes of acute renal failure may occur during ACE inhibition, particularly when renal perfusion is compromised. This is often the case in patients with renal artery stenosis and a single kidney or with bilateral renal artery stenosis. In recent years, investigators have shown concern at the long-term fate of the stenotic kidney in patients with unilateral renal artery stenosis who are treated with ACE inhibitors. Although overall renal function remained stable, a decrease in glomerular filtration was demonstrated in the stenotic kidney under ACE inhibition. The long-term implications of this observation merit further investigations.
DEVELOPMENT OF CATALYTIC GLYCOSYLATION METHOD FOR OLIGOSACCHARIDE ASSEMBLY AND TOTAL SYNTHESIS OF ACIDIC ALPHA-DYSTROGLYCAN OLIGOSACCHARIDES (2017)

The field of glycoscience explores the structures and functions of carbohydrates that calls for the rapid access of structurally defined oligosaccharides. In contrast to the synthesis of nucleic acids and peptides/proteins, synthetic preparation of carbohydrates remains laborious that necessitates the development of novel yet robust synthetic strategy to achieve automated oligosaccharide synthesis. In PART A of this thesis, we report our recent developments of a novel glycosylation method based on a designer thioglycoside that can be activated by catalytic amount of carbophilic Lewis acid. Furthermore, in two separate strategies i.e. 1) catalytic reactivity-based one-pot glycosylation and 2) sequential active-latent strategy for glycosylation, we will demonstrate the synthetic utility of our new methodology. We also identified perfluoroamide based linker in biomolecule synthesis. The fluorous solid phase extraction facilitates the solution-phase rapid oligosaccharide assembly. Gold-catalyzed glycosylation, clubbed with perfluoroamide linker/tag appeared to be an ideal recipe in the context of convenient combinatorial access to biologically important carbohydrate molecules. In PART B, I address the important issue associated with the functions of carbohydrate modification in dystroglycan (DG) in muscular dystrophies (MDs), a group of muscle diseases, for which currently no cure is available. Sorting out the relationships between the various molecular defects in glycosylation and the modes of disease presentation is challenging. The enzymatic oligosaccharide product from LARGE gene has been recently identified, which consists of a repeating (13)-GlcUA--(13)-Xyl disaccharide unit. A template directed 1,2-cis glycosylation was utilized to synthesize a series of a-DG associated glycans. Additionally, a successful synthesis is demonstrated for B4GAT1 enzymatic trisaccharide, which is also found to be involved in post-translational modification. We expect our study serve as the basis for finding novel medical solutions to neurological diseases that commonly causes cardiac muscle dystrophies and brain diseases.