gebhart/patrepeval huggingface dataset:
Overcoming quantum noise in optical fibers (2004)

Noise in optical telecommunication fibers is an important limitation on optical quantum data transmission. Unfortunately, the classically successful amplifiers cannot be used in quantum communication because of the no-cloning theorem. We propose a simple method to reduce quantum noise: the insertion of phase shifters and/or beam splitters at regular distance intervals into a fiber. We analyze in detail the case of qubits encoded into polarization states of low-intensity light, which is of central importance to various quantum information tasks, such as quantum cryptography and communication. We discuss the experimental feasibility of our scheme and propose a simple experiment to test our method.
Infrared ellipsometer for the study of surfaces, thin films, and superlattices (1992)

An automatic infrared ellipsometer for the study of surface and interface phenomena has been constructed. The system is based on a Fourier transform spectrometer that we equipped with an ellipsometer unit. Polarizers and analyzers are of the ion-etched wire-grid type. Their rotation is governed by means of a computer-controlled stepping-motor system. A discussion of calibration procedures for the infrared range is given, and special attention is given to the problem of selecting the best measurement strategy. The polarization state of the reflected beam is determined by measuring the intensity at 72 regularly spaced polarizer/analyzer settings. It is found that the effects of interferometric polarization, beam wandering, and detector dichroism cannot be neglected. However, these error sources have been eliminated by analyzing the zeroth, second, and fourth harmonic components of the azimuthally recorded intensity. Both the multiplex advantage of Fourier transform spectroscopy and the phase sensitivity ofellipsometry are combined in this instrument. Measurements on superconducting films, superlattices, and doped GaAs films are reported.
High-Performance Pressure-Sensitive Adhesives from Renewable Triblock Copolymers (2015)

ADVERTISEMENT RETURN TO ISSUEPREVNoteHigh-Performance Pressure-Sensitive Adhesives from Renewable Triblock CopolymersKeying Ding†, Alex John†, Jihoon Shin†, Youngmin Lee†, Tom Quinn‡, William B. Tolman*†, and Marc A. Hillmyer*†View Author Information† Department of Chemistry and Center for Sustainable Polymers, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States‡ Adherent Laboratories, Inc., 3804 Dunlap Street North, Saint Paul, Minnesota 55112, United States*(W.B.T.) E-mail: [email protected]*(M.A.H.) E-mail: [email protected]Cite this: Biomacromolecules 2015, 16, 8, 2537–2539Publication Date (Web):July 27, 2015Publication History Received4 June 2015Revised3 July 2015Published online27 July 2015Published inissue 10 August 2015https://pubs.acs.org/doi/10.1021/acs.biomac.5b00754https://doi.org/10.1021/acs.biomac.5b00754brief-reportACS PublicationsCopyright © 2015 American Chemical SocietyRequest reuse permissionsArticle Views2428Altmetric-Citations42LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Copolymers,Nuclear magnetic resonance spectroscopy,Organic polymers,Particulate matter,Surface interactions Get e-Alerts
Pilot Controlled Double-Blind Study of the Hypnotic Effects of Zolpidem in Patients with Chronic ‘Learned’ Insomnia: Psychometric and Polysomnographic Evaluation (1993)

In a pilot double-blind trial in 21 patients with learned or idiopathic insomnia (DSM-IIIR), patients received placebo for 1 week (nights 1-7), either active (zolpidem, 10 mg) or placebo treatment for 2 weeks (nights 8-21) and then placebo for a further week (nights 22-28). Variables to measure efficacy, rebound and withdrawal were assessed daily from day 1 to day 28. Polysomnographic recordings together with sleep cycle analysis were performed on nights 7, 21 and 28. Patients treated with 10 mg zolpidem for 2 weeks had significantly improved sleep efficiency at the end of the randomised double-blind phase compared with the placebo group. Fractionated sleep-cycle analysis showed an increase in slow-wave sleep during the first 2-hour cycle after sleep onset. During the withdrawal placebo week, most of the main sleep variables remained relatively stable in the zolpidem group (nights 22-28), and deteriorated further in the placebo group. At the end of the withdrawal phase, there was a statistically significant difference between groups, in favour of the zolpidem treatment, in sleep efficiency, total sleep time, absolute and percentage of time awake, and percentage of REM sleep. REM sleep, which was normal in both groups at baseline, decreased significantly in the placebo group between nights 22 and 28 (during the withdrawal placebo week) compared with the zolpidem treatment group, and the number of periods of time awake increased. Minor subjective complaints were recorded under zolpidem and were comparable with those under placebo. Zolpidem seemed to improve some important sleep variables, when assessed both objectively and subjectively. The sleep cycle analysis suggested a possible shift of slow-wave sleep to an earlier period of the night, with a more physiological sleep structure. There was no evidence for withdrawal or rebound after stopping the 2 weeks of zolpidem treatment, but rather signs that the effect of zolpidem outlasted active treatment. The present pilot study justifies a prospective confirmatory comparison of zolpidem with benzodiazepines in an adequate number of patients and withdrawal after 6-8 weeks of treatment.
Interleukin-12 in infectious diseases (1997)

Interleukin-12 (IL-12) is a potent immunoregulatory cytokine that is crucially involved in a wide range of infectious diseases. In several experimental models of bacterial, parasitic, viral, and fungal infection, endogenous IL-12 is required for early control of infection and for generation and perhaps maintenance of acquired protective immunity, directed by T helper type 1 (Th1) cells and mediated by phagocytes. Although the relative roles of IL-12 and gamma interferon in Th1-cell priming may be to a significant extent pathogen dependent, common to most infections is that IL-12 regulates the magnitude of the gamma interferon response at the initiation of infection, thus potentiating natural resistance, favoring Th1-cell development; and inhibiting Th2 responses. Treatment of animals with IL-12, either alone or as a vaccine adjuvant, has been shown to prevent disease by many of the same infectious agents, by stimulating innate resistance or promoting specific reactivity. Although IL-12 may enhance protective memory responses in vaccination or in combination with antimicrobial chemotherapy, it is yet unclear whether exogenous IL-12 can alter established responses in humans. Continued investigation into the possible application of IL-12 therapy to human infections is warranted by the role of the cytokine in inflammation, immunopathology, and autoimmunity.
Extended orthogonal block coding with code selection for four transmit antennas and one receive antenna (2008)

This paper investigates closed loop extended orthogonal block coding (EO-STBC) scheme with four transmit antennas and single receive antenna under quasi-static flat Rayleigh fading. Overall system architectures and the BER performance are compared among conventional EO-STBCs through simulations and numerical analysis in the sense of the average receive SNR. Further, We proposed a new EO-STBC adopting a code selection scheme on the basis of optimal phase rotated EO-STBC for obtaining additional receive SNR gain. Finally, we confirmed that the proposed system has better BER performance than other EO-STBCs without additional feedback bits.
SeamCrop for image retargeting (2012)

In this paper, we present a novel approach for the adaptation of large images to small display sizes. As a recent study suggests, most viewers prefer the loss of content over the insertion of deformations in the retargeting process.1 Therefore, we combine the two image retargeting operators seam carving and cropping in order to resize an image without manipulating the important objects in an image at all. First, seams are removed carefully until a dynamic energy threshold is reached to prevent the creation of visible artifacts. Then, a cropping window is selected in the image that has the smallest possible window size without having the removed energy rise above a second dynamic threshold. As the number of removed seams and the size of the cropping window are not fix, the process is repeated iteratively until the target size is reached. Our results show that by using this method, more important content of an image can be included in the cropping window than in normal cropping. The "squeezing" of objects which might occur in approaches based on warping or scaling is also prevented.
An Experimental Determination of the Propagation of Fluid Oscillations in a Tube with a Visco-elastic Wall; together with an Analysis of the Characteristics Required in an Electrical Analogue (1959)

The work presented here has had two aims; first to determine experimentally the behaviour of oscillatory pressure waves in a rubber tube, when frequency, fluid density and viscosity were varied; and secondly to compare the findings with two theoretical treatments, first the highly simplified electrical transmission-line analogue, and second the more realistic hydrodynamic theory of Womersley.
Characterization of the Mouse Cyp1B1 Gene (1998)

Transcriptional activation of the Cyp1B1 gene in rodents is stimulated by both polycyclic hydrocarbons and cAMP. The mouse Cyp1B1 gene structure contains three exons, of which the second nucleotide of exon 2 is the translation start site. Primer extension analysis identified a transcription start domain defining an exon 1 of 371 base pairs. The sequence 1.075 kilobases upstream of the transcription start site showed 11 xenobiotic-responsive elements (XRE) (TnGCGTG or GCGTG) that are putative aryl hydrocarbon receptor (AhR)-binding sites and three steroidogenic factor-1 motifs that are associated with cAMP-mediated transcriptional activation of genes. A transiently transfected Cyp1B1-luciferase construct, composed of exon 1 and 1.075 kilobases of 5'-flanking region, was induced by 2,3, 7,8-tetrachlorodibenzo-p-dioxin (TCDD; 10.0 +/- 3.0-fold, n = 6) in C3H10T1/2 cells, which exclusively express Cyp1B1. The 90-base pair basal promoter contains two SP-1 sites, one SF-1 site, and a TATA-like box. TCDD induction and basal expression were dependent on positive regulatory elements present between -1075 and -810. Five XRE motifs localized in the enhancer region were completely conserved between mouse and human CYP1B1 sequences. Similar inductions were seen in Hepa-1 cells, which express Cyp1A1 but not Cyp1B1. However, basal Cyp1B1 promoter activities were 4-10-fold higher in C3H10T1/2 cells providing the enhancer region was present, partially reproducing the in vivo cell-specific expression of Cyp1B1. Gel shift experiments established that TCDD stimulates AhR binding to the downstream XRE in the enhancer region. However, oligonucleotides that encompass two other XREs show a high affinity complex of similar size that is evident even without TCDD treatment and that does not contain either the AhR or AhR nuclear translocator. The fourth XRE is immediately adjacent to an E-box, and this oligonucleotide formed a smaller complex that was dependent on this E-box sequence. Negative regulatory sequences have been located between the promoter and TCDD-responsive enhancer regions. Constitutive expression of the Cyp1B1 gene was lost in AhR-deficient cells and was restored by transfected AhR cDNA. Reporter constructs function in a parallel manner, demonstrating the key role of the AhR in constitutive as well as TCDD-induced expression of Cyp1B1 in mouse embryo fibroblasts.
Apparatus for rapid measurement of optical rotation changes (1975)

An apparatus for rapid measurement of optical rotation changes has been developed in the face of large absorption changes with time resolutions of 10 μsec (sensitivity 0.018°) and 4 msec (sensitivity 0.0016°). Applications are briefly described for the study of rapid transient processes of reduction reaction of cytochrome c with dithionite with the stopped-flow technique. The method can be combined with stopped-flow, temperature-jump, and flash photolysis and allows direct observation of rapid conformation events of biomolecules.
Recombinant, Replication-Defective Adenovirus Gene Transfer Vectors Induce Cell Cycle Dysregulation and Inappropriate Expression of Cyclin Proteins (1998)

First-generation adenovirus (Ad) vectors that had been rendered replication defective by removal of the E1 region of the viral genome (DeltaE1) or lacking the Ad E3 region in addition to E1 sequences (DeltaE1DeltaE3) induced G2 cell cycle arrest and inhibited traverse across G1/S in primary and immortalized human bronchial epithelial cells. Cell cycle arrest was independent of the cDNA contained in the expression cassette and was associated with the inappropriate expression and increase in cyclin A, cyclin B1, cyclin D, and cyclin-dependent kinase p34(cdc2) protein levels. In some instances, infection with DeltaE1 or DeltaE1 DeltaE3 Ad vectors produced aneuploid DNA histogram patterns and induced polyploidization as a result of successive rounds of cell division without mitosis. Cell cycle arrest was absent in cells infected with a second-generation DeltaE1Ad vector in which all of the early region E4 except the sixth open reading frame was also deleted. Consequently, E4 viral gene products present in DeltaE1 or DeltaE1 DeltaE3 Ad vectors induce G2 growth arrest, which may pose new and unintended consequences for human gene transfer and gene therapy.
Ethanol-mediated perivascular renal sympathetic denervation: preclinical validation of safety and efficacy in a porcine model (2013)

Circumferential adventitial delivery of very low doses of EtOH may be a promising alternative to energy-based systems to achieve dose-dependent, and predictable renal denervation. Further study is warranted.
IMMUNOLOGICAL COMPETENCE AND HOST-SPECIFIC TOLERANCE OF ANTIBODY-FACILITATED BONE MARROW CHIMERAS (1987)

We have generated murine antibody-facilitated (AF) bone marrow chimeras in the genetic combination P1----(P1 X P2)F1 by the simultaneous injection of P1 bone marrow cells and anti-P2 MHC monoclonal antibody into normal (unirradiated) adult (P1 X P2)F1 recipients. These mice have normal life spans and appear to be healthy, with no overt signs of graft-versus-host disease. We have undertaken an extensive survey of the ability of stable, long-term AF chimeras to generate immune responses in vitro and in vivo. Both T and B lymphocyte functions have been analyzed in proliferative and effector cell assays. The AF chimeras respond normally to mitogenic as well as antigenic stimuli, and exhibit normal capacities for cellular collaboration in the generation of immune responses. However, splenic lymphocytes from AF chimeras are substantially and specifically hyporesponsive or nonresponsive to host, P2-encoded, alloantigens in in vitro assays of cell-mediated immunity. This host-specific tolerance is exhibited by the cytotoxic T lymphocyte lineage; T helper cells necessary for the generation of a cytotoxic response may also have decreased reactivity to host determinants. We conclude that our protocol for the production of AF chimeras does not compromise the immune system of chimeric animals but does allow the maintenance of host-specific tolerance, after stable equilibrium has been attained.
Wavefront Reconstruction by Reflection (1965)

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 A. K. Rigler, "Wavefront Reconstruction by Reflection," J. Opt. Soc. Am. 55, 1693-1693 (1965) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Comparison of the efficacy of subgingival irrigation with 2% povidone-iodine and tetracycline HCl in subjects with chronic moderate periodontitis: A clinico microbiological study (2016)

It can be concluded that chemical and mechanical therapies were of slight benefit in the treatment of chronic moderate periodontitis, and there was an adjunctive effect of significance when scaling and root planing was combined with a single subgingival irrigation with tetracycline or povidone-iodine in lower concentration.
Construction and realization of a 3D perceptual system based on 2D laser radar (2008)

This paper presents a 3D perceptual system based on 2D laser radar LMS291. The proposed system utilizes intelligent module to add a degree of freedom to LMS291. A new method of synchronization between LMS291 and intelligent module was proposed. We added Visual C++ multi-media timer to the timestamp method, the purpose we use this method is to change the level resolution conveniently, and control the number of the points we acquired, because in some condition we need speedy scanning to rebuild the reconstructed image of the terrain quickly. And we use Matlab to reconstruct the 2D and 3D images. To repair the singular points we selected absolute mean value method. The experiment shows that absolute mean value method works more accurately and effectively And this system we designed can be used for image reconstruction in unstructured environment by experiments.
Enhancing Sensation in Diabetic Neuropathic Foot With Mechanical Noise (2003)

Mechanical noise stimulation improves vibration and tactile perception in diabetic patients with moderate to severe neuropathy. Additional studies are required to examine the effect of long-term noise stimulation on parameters of nerve function.
Glyoxalase I and glyoxalase II from Aloe vera: purification, characterization and comparison with animal glyoxalases. (1990)

Glyoxalase I and glyoxalase II from the outer green rind of Aloe vera leaves were purified by (matrix) affinity ligand-enzyme binding methods. The purified enzymes exhibited single protein bands on SDS-PAGE electrophoresis, with MW values of approximately 44,000 and 27,000 for glyoxalase I and glyoxalase II, respectively. The glyoxalase I is a basic protein (pI 7.8), while the glyoxalase II (3 protein bands) is acidic (pI 4.7, 4.8 [prevalent form], and 5.0). The kinetic constants, Km and Vmax, and Ki values for certain inhibitors are reported for both glyoxalase I and glyoxalase II. The glyoxalase enzymes from Aloe vera were compared with reported animal and plant glyoxalases.
Growth and electrical characterisation of δ-doped boron layers on (111) diamond surfaces (2012)

A plasma enhanced chemical vapor deposition protocol for the growth of δ-doping of boron in diamond is presented, using the (111) diamond plane as a substrate for diamond growth. AC Hall effect measurements have been performed on oxygen terminated δ-layers and desirable sheet carrier densities (∼1013 cm−2) for field-effect transistor application are reported with mobilities in excess of what would expected for equivalent but thicker heavily boron-doped diamond films. Temperature-dependent impedance spectroscopy and secondary ion mass spectroscopy measurements show that the grown layers have metallic-like electrical properties with high cut-off frequencies and low thermal impedance activation energies with estimated boron concentrations of approximately 1020 cm−3.
The Aircraft Reactor Experiment—Operation (1957)

The ARE was operated successfully in November, 1954, at various power levels up to 2.5 Mw. The maximum steady-state fuel temperature was 1580°F, and there was a differential temperature between the inlet and outlet in the NaF-ZrF4-UF4 fuel of 355°F. The fuel system was in operation for 241 hr before the reactor first became critical and the nuclear operation extended over a period of 221 hr. The final 74 hr of operation were in the megawatt range and resulted in the production of 96-Mwhr of nuclear energy. Effects of various transient conditions on reactor operation were determined.
Analysis of cellular fatty acids and phenotypic relationships of Agrobacterium, Bradyrhizobium, Mesorhizobium, Rhizobium and Sinorhizobium species using the Sherlock Microbial Identification System. (2000)

Previous studies have demonstrated that cellular fatty acid analysis is a useful tool for identifying unknown strains of rhizobia and establishing taxonomic relationships between the species. In this study, the fatty acid profiles of over 600 strains belonging to the genera Agrobacterium, Bradyrhizobium, Mesorhizobium, Rhizobium and Sinorhizobium were evaluated using the gaschromatography-based Sherlock Microbial Identification System (MIS). Data collected with the MIS showed that the three phylogenetically defined biovars of the genus Agrobacterium formed discrete clusters, whilst species belonging to the genus Mesorhizobium formed three subclusters which were easily distinguished. These three subclusters contained Mesorhizobium ciceri and Mesorhizobium mediterraneum, Mesorhizobium tianshanense fatty acid group I and Mesorhizobium plurifarium, and Mesorhizobium huakuii and Mesorhizobium loti. The genus Sinorhizobium was composed of an individual position for Sinorhizobium meliloti and a large cluster comprising Sinorhizobium fredii, Sinorhizobium saheli, Sinorhizobium terangae, Sinorhizobium kostiense and Sinorhizobium arboris. S. meliloti contained significantly higher levels of the fatty acid 19:0 cyclo omega 8 cis and clustered with Rhizobium sp. (Hedysarum coronarium). However, discrimination between the species of genera Sinorhizobium and Rhizobium was a function of the concentration of 16:0 3-OH. The genus Rhizobium contained a single cluster containing Rhizobium sp. (Hedysarum coronarium), Rhizobium gallicum, Rhizobium leguminosarum and Rhizobium etli, along with individual positions for Rhizobium giardinii, Rhizobium tropici, Rhizobium galegae and Rhizobium hainanense. R. tropici and R. hainanense exhibited similarity to Agrobacterium biovar 2, whilst R. galegae was similar to Agrobacterium biovar 1. R. giardinii appeared unique, with comparatively little similarity to the other species. Analysis of the genus Bradyrhizobium revealed large differences from the other genera studied. Two subgroups of Bradyrhizobium elkanii were detected and easily distinguished from Bradyrhizobium japonicum. Bradyrhizobium liaoningense and Bradyrhizobium sp. (Arachis hypogaea), a group isolated from Chinese peanut plants, showed similarities to B. japonicum, whilst a subgroup of M. tianshanense appeared identical to Bradyrhizobium sp. (Arachis hypogaea).
ChemInform Abstract: STUDIES ON QUINONES, V. 1,4‐CARBAZOLQUINONES FROM P‐BENZOQUINONE AND PRIMARY ALIPHATIC AMINES. THE ALLEGED AND THE REAL 2‐METHYLAMINOBENZOQUINONE (1979)

Abstract Das Benzochinon (I) reagiert mit den Aminen (II) zu den Carbazolchinonen (III).