gebhart/patrepeval huggingface dataset:
Design of cyclic delay diversity for single carrier cyclic prefix (SCCP) transmissions with block-iterative GDFE (BI-GDFE) receiver (2008)

<i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Single</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">carrier</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">cyclic</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">prefix</i> (SCCP) modulation has been adopted as one of the physical layer air-interfaces for IEEE802.I6 standards due to its less stringent requirement on <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">peak-to-average</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">power</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ratio</i> (PAPR) than multicarrier modulation. As a single carrier transmission, however, the received SCCP blocks suffer from inter-symbol interference (ISI). The <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">block</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">iterative</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">generalized</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">decision</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">feedback</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">equalizer</i> (BI-GDFE) is an effective interference cancellation scheme which generally shows performance improvement over linear equalizers. However, in order to achieve a significant gain, the channel must contain rich multipath components, and this may not necessarily be true in many systems. In this paper, we propose to apply <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">cyclic</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">delay</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">diversity</i> (CDD) to a SCCP system so that the possible performance improvement by using a BI-GDFE detector can be enhanced. The asymptotic performance of the proposed system is analyzed using random matrix results. We propose a scheme to determine the optimal delay parameter for CDD. Computer simulations have shown that by incorporating CDD into the transmitter and using a BI-GDFE receiver, the BER performance of the system can approach the MFB within several iterations for high SNR region.
Adjuvant Activity of Mycobacterial Fractions (1974)

ABSTRACT The addition of adjuvant ( Bacillus Calmette–Guérin‐cell wall skeleton; BCG‐CWS) to the culture medium substantially increased the immune response of mouse spleen cells to immunization with heterologous erythrocytes and hapten–protein conjugate in vitro . Cell walls of mycobacteria, nocardia and corynebacteria and their cell wall constituents were used as adjuvants. In the present case, it was found that cell walls of mycobacteria, nocardia and corynebacteria markedly facilitated primary humoral response of mouse spleen cells to heterologous erythrocytes in vitro . The adjuvant effect of BCG‐CWS was present only in the formation of 19 S antibody in both primary and secondary responses, but not in that of 7 S antibody in vitro . Primary antihapten response of mouse spleen cells against dinitrophenylated keyhole limpet hemocyanin (DNP‐KLH) also succeeded when BCG‐CWS was added to the culture medium, and it was found that BCG‐CWS increased the helper activity of carrier specific helper T cells in vitro where a double chamber system, separated by a cell‐impermeable nucleopore membrane, was used. This result suggested that BCG‐CWS acts on T cells, resulting in the release of soluble factor(s) from T cells capable of exerting an adjuvant effect. Furthermore, mucopeptide moiety of BCG‐CWS retained some adjuvant activity, but other cell wall constituents, such as mycolic acid, arabinose mycolate, and arabinogalactan, did not show any adjuvant effect in vitro . These results strongly imply that mucopeptide moiety of BCG‐CWS plays an important role in the development of adjuvanticity.
Anxiety disorders are a risk factor for suicidal behaviour (2006)

Sareen J, Cox BJ, Afifi TO, et al . Anxiety disorders and risk for suicidal ideation and suicide attempts: a population-based longitudinal study of adults. Arch Gen Psychiatry 2005;62:1249–57.[OpenUrl][1][CrossRef][2][PubMed][3][Web of Science][4] Q Are anxiety disorders associated with increased lifetime risk of suicidal ideation and attempts, and do they increase the risk of a first incidence of suicidal behaviour? ### ![Graphic][5]</img>Design: Population-based prospective cohort study. ### ![Graphic][6]</img>Follow up period: Three years. ### ![Graphic][7]</img>Setting: The Netherlands; 1996–99. ### ![Graphic][8]</img>People: 7076 participants in the Netherlands Mental Health and Incidence Survey, a large general population survey of a stratified random sample of Dutch households. One person, aged 18–64 years, was interviewed per household; participants had to speak adequate Dutch. At one year, 5618 participants were re-interviewed and at three years 4848 were re-interviewed. 4796 had valid information for all three assessments. ### ![Graphic][9]</img>Risk factors: The Composite International Diagnostic Interview (CIDI) … [1]: {openurl}?query=rft.jtitle%253DArchives%2Bof%2BGeneral%2BPsychiatry%26rft.stitle%253DArch%2BGen%2BPsychiatry%26rft.aulast%253DSareen%26rft.auinit1%253DJ.%26rft.volume%253D62%26rft.issue%253D11%26rft.spage%253D1249%26rft.epage%253D1257%26rft.atitle%253DAnxiety%2BDisorders%2Band%2BRisk%2Bfor%2BSuicidal%2BIdeation%2Band%2BSuicide%2BAttempts%253A%2BA%2BPopulation-Based%2BLongitudinal%2BStudy%2Bof%2BAdults%26rft_id%253Dinfo%253Adoi%252F10.1001%252Farchpsyc.62.11.1249%26rft_id%253Dinfo%253Apmid%252F16275812%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [2]: /lookup/external-ref?access_num=10.1001/archpsyc.62.11.1249&link_type=DOI [3]: /lookup/external-ref?access_num=16275812&link_type=MED&atom=%2Febmental%2F9%2F2%2F58.atom [4]: /lookup/external-ref?access_num=000233050900008&link_type=ISI [5]: /embed/inline-graphic-1.gif [6]: /embed/inline-graphic-2.gif [7]: /embed/inline-graphic-3.gif [8]: /embed/inline-graphic-4.gif [9]: /embed/inline-graphic-5.gif
Integrins αvβ3 and α4β1 Act as Coreceptors for Fractalkine, and the Integrin-Binding Defective Mutant of Fractalkine Is an Antagonist of CX3CR1 (2012)

The membrane-bound chemokine fractalkine (FKN, CX3CL1) on endothelial cells plays a role in leukocyte trafficking. The chemokine domain (FKN-CD) is sufficient for inducing FKN signaling (e.g., integrin activation), and FKN-CD binds to its receptor CX3CR1 on leukocytes. Whereas previous studies suggest that FKN-CD does not directly bind to integrins, our docking simulation studies predicted that FKN-CD directly interacts with integrin α(v)β(3). Consistent with this prediction, we demonstrated that FKN-CD directly bound to α(v)β(3) and α(4)β(1) at a very high affinity (K(D) of 3.0 × 10(-10) M to α(v)β(3) in 1 mM Mn(2+)). Also, membrane-bound FKN bound to integrins α(v)β(3) and α(4)β(1), suggesting that the FKN-CD/integrin interaction is biologically relevant. The binding site for FKN-CD in α(v)β(3) was similar to those for other known α(v)β(3) ligands. Wild-type FKN-CD induced coprecipitation of integrins and CX3CR1 in U937 cells, suggesting that FKN-CD induces ternary complex formation (CX3CR1, FKN-CD, and integrin). Based on the docking model, we generated an integrin-binding defective FKN-CD mutant (the K36E/R37E mutant). K36E/R37E was defective in ternary complex formation and integrin activation, whereas K36E/R37E still bound to CX3CR1. These results suggest that FKN-CD binding to CX3CR1 is not sufficient for FKN signaling, and that FKN-CD binding to integrins as coreceptors and the resulting ternary complex formation are required for FKN signaling. Notably, excess K36E/R37E suppressed integrin activation induced by wild-type FKN-CD and effectively suppressed leukocyte infiltration in thioglycollate-induced peritonitis. These findings suggest that K36E/R37E acts as a dominant-negative CX3CR1 antagonist and that FKN-CD/integrin interaction is a novel therapeutic target in inflammatory diseases.
Formation of adducts between fluorinated ketones and metal fluorides (1968)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of adducts between fluorinated ketones and metal fluoridesEvans F. W., M. H. Litt, A. M. Weidler-Kubanek, and F. P. AvondaCite this: J. Org. Chem. 1968, 33, 5, 1837–1839Publication Date (Print):May 1, 1968Publication History Published online1 May 2002Published inissue 1 May 1968https://pubs.acs.org/doi/10.1021/jo01269a028https://doi.org/10.1021/jo01269a028research-articleACS PublicationsRequest reuse permissionsArticle Views376Altmetric-Citations14LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
A high bandwidth preamplifier for SiPM-based TOF PET scintillation detectors (2008)

In a Silicon Photomultiplier (SiPM) several hundreds or thousands of Geiger Mode Avalanche Photodiodes (GM APDs) are connected in parallel so as to combine the photon counting capabilities of these so-called microcells into a proportional light sensor. SiPM-based scintillation detectors can exhibit inherent nonlinearity, which may result in a degradation of the energy and position resolution. One cause of nonlinearity is saturation, which depends on the ratio between the total number of GM APDs that compose the device and the average number of photoelectrons created within the active volume of the SiPM during the recovery time of the cells. A second cause becomes apparent if we investigate the simultaneous firing of multiple cells. We show by means of Spice simulations that the output impedance of a SiPM changes with the number of fired cells. This introduces nonlinearity in the measured signal if the input impedance of subsequent front-end electronics is not negligible. To tackle this problem we present a new SiPM preamplifier design for SiPM based TOF PET scintillation detectors. A compact 16-channel front-end board for read-out of position-sensitive SiPM arrays has been built, based on this preamplifier concept. Our simulations and measurements show (i) excellent linearity, (ii) sufficiently low noise (∼85 fC referred to input) and (iii) outstanding low timing jitter (∼17 ps FWHM coincidence response of two SiPM’s excited by a laser pulse).
Performance Appraisal System Using Multifactorial Evaluation Model (2009)

Performance appraisal of employee is important in managing the human resource of an organization. With the change towards knowledge-based capitalism, maintaining talented knowledge workers is critical. However, management classification of "outstanding", "poor" and "average" performance may not be an easy decision. Besides that, superior might also tend to judge the work performance of their subordinates informally and arbitrarily especially without the existence of a system of appraisal. In this paper, we propose a performance appraisal system using multifactorial evaluation model in dealing with appraisal grades which are often express vaguely in linguistic terms. The proposed model is for evaluating staff performance based on specific performance appraisal criteria. The project was collaboration with one of the Information and Communication Technology company in Malaysia with reference to its performance appraisal process.
Mining hidden mixture context with ADIOS-P to improve predictive pre-fetcher accuracy (2012)

Predictive pre-fetcher, which predicts future data access events and loads the data before users requests, has been widely studied, especially in file systems or web contents servers, to reduce data load latency. Especially in scientific data visualization, pre-fetching can reduce the IO waiting time. In order to increase the accuracy, we apply a data mining technique to extract hidden information. More specifically, we apply a data mining technique for discovering the hidden contexts in data access patterns and make prediction based on the inferred context to boost the accuracy. In particular, we performed Probabilistic Latent Semantic Analysis (PLSA), a mixture model based algorithm popular in the text mining area, to mine hidden contexts from the collected user access patterns and, then, we run a predictor within the discovered context. We further improve PLSA by applying the Deterministic Annealing (DA) method to overcome the local optimum problem. In this paper we demonstrate how we can apply PLSA and DA optimization to mine hidden contexts from users data access patterns and improve predictive pre-fetcher performance.
Octonion Algebra and Noise-Free Fully Homomorphic Encryption (FHE)\n Schemes (2016)

Brakerski showed that linearly decryptable fully homomorphic encryption (FHE)\nschemes cannot be secure in the chosen plaintext attack (CPA) model. In this\npaper, we show that linearly decryptable FHE schemes cannot be secure even in\nthe ciphertext only security model. Then we consider the maximum security that\na linearly decryptable FHE scheme could achieve. This paper designs fully\nhomomorphic symmetric key encryption (FHE) schemes without bootstrapping (that\nis, noise-free FHE schemes). The proposed FHE schemes are based on\nquaternion/octonion algebra and Jordan algebra over finite rings Z_n and are\nsecure in the weak ciphertext-only security model assuming the hardness of\nsolving multivariate quadratic equation systems and solving univariate high\ndegree polynomial equation systems in Z_n. It is up to our knowledge that this\nis the first noise-free FHE scheme that has ever been designed with a security\nproof (even in the weak ciphertext-only security model). It is argued that the\nweak ciphertext-only security model is sufficient for various applications such\nas privacy preserving computation in cloud. As an example, the proposed FHE\nschemes are used to construct obfuscated programs. This example could be\nfurther used to show that the scheme presented in this paper could be combined\nwith existing FHE schemes with bootstrapping to obtain more efficient FHE\nschemes with bootstrapping in the fully CPA model. At the end of the paper, we\npoint out the insecurity of several recently proposed noise-free FHE schemes.\n
Soluble collagen disks for the treatment of dry eye syndrome. (1989)

We evaluated the efficacy of soluble ocular inserts made from porcine scleral collagen for the treatment of dry eye syndrome. The 22 patients enrolled in this pilot study were asked to grade their pretreatment symptoms and to document the frequency of artificial tear administration. Schirmer tests, fluorescein and rose bengal staining, and impression cytology of the conjunctival epithelium were also performed at the initial evaluation. Patients were evaluated in this fashion at 3-4, 6-8, and 18-20 weeks after initiation of treatment. We observed statistically significant improvement in symptomatology and reduced necessity for artificial tear administration. There was no significant change in rose bengal staining or impression cytology results. (The absence of objective findings suggests the possibility of a placebo effect.) These findings indicate that soluble collagen inserts may be useful in treating dry eye syndrome.
Dichlorofluoromethanesulfenyl Chloride (1960)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDichlorofluoromethanesulfenyl ChlorideWilliam A. Sheppard and John F. Harris Jr.Cite this: J. Am. Chem. Soc. 1960, 82, 19, 5106–5107Publication Date (Print):October 1, 1960Publication History Published online1 May 2002Published inissue 1 October 1960https://pubs.acs.org/doi/10.1021/ja01504a023https://doi.org/10.1021/ja01504a023research-articleACS PublicationsRequest reuse permissionsArticle Views88Altmetric-Citations13LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Evaluation of the Pulse-Contour Method of Determining Stroke Volume in Man (1972)

The pulse-contour method for determining stroke volume has been employed as a continuous rapid method of monitoring the cardiovascular status of patients. Twenty-one patients with ischemic heart disease and 21 patients with mitral valve disease were subjected to a variety of hemodynamic interventions. These included exercise, isoproterenol infusion, and practolol, morphine or pentazocine administration. The pulse-contour estimations, using three different formulae derived by Warner, Kouchoukos, and Herd, were compared with indicator-dilution outputs. The pressure-pulse-contour computations were performed by a small on-line cardiac catheterization laboratory computer. A comparison of the results of the two methods for determining stroke volume yielded correlation coefficients ranging from 0.59 to 0.84. The better performing Warner formula yielded a coefficient of variation of about 20%. The type of hemodynamic interventions employed did not significantly affect the results using the pulse-contour method. This method yielded nearly as reliable results with the catheter positioned in the axillary artery as in the central aorta. Good results were obtained using the pulse-contour method in patients with atrial fibrillation as compared to those with sinus rhythm. Although the correlation of the pulse-contour and indicator-dilution stroke volumes is high, the coefficient of variation is such that small changes in stroke volume cannot be accurately assessed by the pulse-contour method. However, the simplicity and rapidity of this method compared to determination of cardiac output by Fick or indicator-dilution methods makes it a potentially useful adjunct for monitoring critically ill patients.
A study of nitrogen-rich titanium and zirconium nitride films (1987)

Thin titanium nitride (TiN) and zirconium nitride (ZrN) films containing excess nitrogen up to 59 and 63 at. % N, respectively, were deposited on austenitic stainless-steel substrates by reactive triode ion plating at about 823 K. The film structure and surface chemistry were studied using x-ray diffraction, scanning Auger spectroscopy, and electron energy-loss spectroscopy (EELS). In TiN films only the face-centered-cubic mononitride phase was detected. The lattice parameter of the stoichiometric TiN film was larger than the corresponding bulk value and it increased with increasing nitrogen content. The lattice parameter of overstoichiometric ZrN films showed abnormal behavior when calculated from different diffracting planes. This behavior together with the EELS and other measurements indicate that a dielectric Zr3N4 phase was formed at overstoichiometric compositions.
ATF3 and stress responses. (1999)

The purpose of this review is to discuss ATF3, a member of the ATF/CREB family of transcription factors, and its roles in stress responses. In the introduction, we briefly describe the ATF/CREB family, which contains more than 10 proteins with the basic region-leucine zipper (bZip) DNA binding domain. We summarize their DNA binding and heterodimer formation with other bZip proteins, and discuss the nomenclature of these proteins. Over the years, identical or homologous cDNA clones have been isolated by different laboratories and given different names. We group these proteins into subgroups according to their amino acid similarity; we also list the alternative names for each member, and clarify some potential confusion in the nomenclature of this family of proteins. We then focus on ATF3 and its potential roles in stress responses. We review the evidence that the mRNA level of ATF3 greatly increases when the cells are exposed to stress signals. In animal experiments, the signals include ischemia, ischemia coupled with reperfusion, wounding, axotomy, toxicity, and seizure; in cultured cells, the signals include serum factors, cytokines, genotoxic agents, cell death-inducing agents, and the adenoviral protein E1A. Despite the overwhelming evidence for its induction by stress signals, not much else is known about ATF3. Preliminary results suggest that the JNK/SAPK pathway is involved in the induction of ATF3 by stress signals; in addition, IL-6 and p53 have been demonstrated to be required for the induction of ATF3 under certain conditions. The consequences of inducing ATF3 during stress responses are not clear. Transient transfection and in vitro transcription assays indicate that ATF3 represses transcription as a homodimer; however, ATF3 can activate transcription when coexpressed with its heterodimeric partners or other proteins. Therefore, it is possible that, when induced during stress responses, ATF3 activates some target genes but represses others, depending on the promoter context and cellular context. Even less is understood about the physiological significance of inducing ATF3. We will discuss our preliminary results and some reports by other investigators in this regard.