gebhart/patrepeval huggingface dataset:
Amplify-Forward Relays with Superimposed Pilot Signals for Frequency-Selective Fading Channels (2009)

In this paper, a new amplify-and-forward (AF) relay systems using superimposed pilot signals is proposed for frequency selective fading channel environments. In the proposed scheme, the relay superimposes an additional pilot sequence on the received signal from the source, and forwards the combined signal to the destination. The superimposed pilot signal in this way enables the destination node to estimate the channel between the relay and destination (R-D), and this channel information is used to process the received signal at the destination optimally; the noise correlation due to the frequency selective fading in the R-D channel is whitened. The optimal power ratio of the superimposed pilot to the incoming signal at the relay is obtained via simulations, and it is shown under frequency selective channel environments that the proposed scheme yields better bit-error- rate (BER) performance than the conventional method where all relay power is allocated only to the incoming signal.
Electrochemical Studies of the Intercalation of Ethidium Bromide to DNA (1999)

Ethidium bromide in a concentration range of 5.7 nM to 0.7 µM was determined amperometrically with an electrochemically activated glassy carbon electrode. From the relationship derived for the intercalation of EB to DNA and the equilibrated concentration of free ethidium bromide determined, the binding constant of the EB-DNA intercalation was determined. The binding constants found agree very well with those reported in the literature. The linear relationship found for EB-DNA intercalation was developed as a new procedure for DNA analysis. With the developed method, a detection limit of 0.4 µM and a linear dynamic range of 0.4 to 107 µM for dsDNA analysis can be obtained optimistically.
Automated and Manual Direct Methods for the Determination of Blood Urea (1965)

Abstract Automated and manual direct methods for the determination of urea in blood or serum are described. These methods determine urea by the colored product formed when urea, in relatively weak acid solution, reacts with diacetyl monoxime in the presence of thiosemicarbazide and ferric ion. Results are compared with those obtained by urease conversion of urea to ammonia and measurement of the ammonia by nesslerization.
Family History and Risk of Fatal Prostate Cancer (1997)

To examine the relation between fatal prostate cancer and family history of prostate cancer in a first-degree relative, we analyzed data from a prospective mortality study of 481,011 men with no history of cancer at enrollment in 1982. During 9 years of follow-up, 1,922 deaths from prostate cancer occurred. Results from Cox proportional hazard models showed that family history of prostate cancer was related to fatal prostate cancer [rate ratio (RR) = 1.60; 95% confidence interval (CI) = 1.31-1.97]; men with two or more affected relatives had a greater than threefold increase in risk (RR = 3.19; 95% CI = 1.51-6.71). Men whose relatives were diagnosed with prostate cancer before age 65 years (RR = 2.03; 95% CI = 1.33-3.09) had a greater effect of family history than men whose relatives were diagnosed at older ages (RR = 1.50; 95% CI = 1.17-1.91). Rate ratios did not increase with decreasing age of the study participants. The 60% increase in risk for men with at least one affected relative is lower than that reported in previous studies.
Social Sharing of Emotions on Facebook (2015)

People often share emotions with others in order to manage their emotional experiences. We investigate how social media properties such as visibility and directedness affect how people share emotions in Facebook, and their satisfaction after doing so. 141 participants rated 1,628 of their own recent status updates, posts they made on others' timelines, and private messages they sent for intensity, valence, personal relevance, and overall satisfaction felt after sharing each message. For network-visible channels-status updates and posts on others' timelines-they also rated their satisfaction with replies they received. People shared differently between channels, with more intense and negative emotions in private messages. People felt more satisfied after sharing more positive emotions in all channels and after sharing more personally relevant emotions in network-visible channels. Finally, people's overall satisfaction after sharing emotions in network-visible channels is strongly tied to their reply satisfaction. Quality of replies, not just quantity, matters, suggesting the need for designs that help people receive valuable responses to their shared emotions.
The Parabolic Reflector as an Acoustical Amplifier (1985)

Historique du reflecteur parabolique comme amplificateur acoustique. Application du reflecteur parabolique pour l'enregistrement stereophonique
Biosecurity--The Bio-Link Project. (2002)

An experiment was conducted comparing two subject groups, each comprised of eight professional singers specializing in a genre of classical music: early music or grand opera. Electroglottography was used to consider vocal characteristics idiomatic to each genre. Whilst there are clear differences in contact quotient between subjects, particularly when relationships between fundamental frequency (f0) and contact quotient (Qx) are considered, there is no apparent link between contact quotient behaviour and performance specialism based on the results of this sample.
歌曲《卡秋莎》与它的主人公 (1989)

在世界上,很难找到一个地区,那儿的人民不知道我国的《卡秋莎》这首歌。在我国,这首歌几乎是家喻户晓。第二次世界大战期间,它是南斯拉夫、意大利和法国的游击队员们的战斗歌曲。在保加利亚,它成了复仇者的联络暗语。我记得,我们解放波兰时,每到一地,那儿的居民
Diode-pumped YAG-Nd lasers (1970)

In this paper we report on work, using both cooled <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">(\sim77\degK)</tex> and room-temperature incoherent GaAs <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1-x</inf> P <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</inf> diodes (obtained from Texas Instruments, Inc.), that demonstrates the feasibility of obtaining room-temperature CW operation of a YAG:Nd laser with presently available diodes. Measurements have been made with diodes emitting at 0.81 µm that are coupled to a YAG:Nd laser rod by a semi-elliptic cylindrical reflector. The reasons for this choice of coupling geometry will be discussed together with some other possibilities.
Lmo7 is an emerin-binding protein that regulates the transcription of emerin and many other muscle-relevant genes (2006)

X-linked Emery-Dreifuss muscular dystrophy (X-EDMD) is inherited through mutations in emerin, a nuclear membrane protein. Emerin has proposed roles in nuclear architecture and gene regulation, but direct molecular links to disease were unknown. We report that Lim-domain only 7 (Lmo7) binds emerin directly with 125 nM affinity; the C-terminal half of human Lmo7 (hLmo7C) was sufficient to bind emerin in vitro. Lmo7 appeared relevant to EDMD because a deletion that removes Lmo7 (plus eight exons of a neighboring gene) in mice causes dystrophic muscles [Semenova, E., Wang, X., Jablonski, M.M., Levorse, J. and Tilghman, S.M. (2003) An engineered 800 kilobase deletion of Uchl3 and Lmo7 on mouse chromosome 14 causes defects in viability, postnatal growth and degeneration of muscle and retina. Hum. Mol. Genet., 12, 1301-1312]. Lmo7 localizes in the nucleus, cytoplasm and cell surface, particularly adhesion junctions [Ooshio, T., Irie, K., Morimoto, K., Fukuhara, A., Imai, T. and Takai, Y. (2004) Involvement of LMO7 in the association of two cell-cell adhesion molecules, nectin and E-cadherin, through afadin and alpha-actinin in epithelial cells. J. Biol. Chem., 279, 31365-31373]. Our data suggest endogenous Lmo7 is a nucleocytoplasmic shuttling protein, and might also localize at focal adhesions in HeLa cells. Two key results show that Lmo7 regulates emerin gene expression: rat Lmo7 isoforms directly activated a luciferase reporter gene in vivo, and emerin mRNA expression decreased 93% in Lmo7-downregulated HeLa cells. Thus, Lmo7 not only binds emerin protein but is also required for emerin gene transcription. Microarray analysis of Lmo7-downregulated HeLa cells identified over 4200 misregulated genes, including 46 genes important for muscle or heart. Misregulation of 11 genes, including four (CREBBP, NAP1L1, LAP2, RBL2) known to be misregulated in X-EDMD patients and emerin-null mice [Bakay, M., Wang, Z., Melcon, G., Schiltz, L., Xuan, J., Zhao, P., Sartorelli, V., Seo, J., Pegoraro, E., Angelini, C. et al. (2006) Nuclear envelope dystrophies show a transcriptional fingerprint suggesting disruption of Rb-MyoD pathways in muscle regeneration. Brain, 129, 996-1013; Melcon, G., Kozlov, S., Cutler, D.A., Sullivan, T., Hernandez, L., Zhao, P., Mitchell, S., Nader, G., Bakay, M., Rottman, J.N. et al. (2006) Loss of emerin at the nuclear envelope disrupts the Rb1/E2F and MyoD pathways during muscle regeneration. Hum. Mol. Genet., 15, 637-651] was confirmed by real-time PCR. Overexpression of wild-type emerin, but not emerin mutant P183H (which causes EDMD and selectively disrupts binding to Lmo7), decreased the expression of CREBBP, NAP1L1 and LAP2, suggesting Lmo7 activity is both EDMD-relevant and inhibited by direct binding to emerin. We conclude that Lmo7 positively regulates many EDMD-relevant genes (including emerin), and is feedback-regulated by binding to emerin.
A Trust Model based DRM technology on Distributed P2P and IPv6 Networks (2007)

P2P content sharing is often blamed for copyright infringement, making the establishment of DRM technologies an urgent need. A novel PCADRM (P2P-based content access digital rights management) system is proposed. It is based on a trust model that focuses on content security, rights management and access control. Encryption, digital watermarking, and packaging technologies are adopted to protect the confidentiality and integrity of contents, and support copyrights verifying and piracy tracing. The structure of rights management integrates the distributed and centralized modes, which not only reduces the burdens of networks and rights server, but also provides controllability. The contents downloaded on the P2P and IPv6 networks can be played only with rights control. To realize access control, the password and identity authentication are used. The PCADRM system is implemented to prove that it can provide a more robust Intellectual Property protection solution for P2P content delivery
ChemInform Abstract: Synthesis of Furazans by Rearrangement of 3‐Acyl‐1‐oxa‐2‐azole Oximes (1992)

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.
Atomic Layer Deposition of Ru Nanocrystals with a Tunable Density and Size for Charge Storage Memory Device Application (2008)

We propose a deposition method capable of independently controlling the spatial density and average size of Ru nanocrystals by using both plasma-enhanced and thermal atomic layer deposition (ALD). Plasma-enhanced ALD is used to promote the nucleation of Ru nanocrystals, while thermal ALD is used to assist their growth. By the rigorous selection of each stage, we can demonstrate the formation of Ru nanocrystals with a density variation from 3.5 X 10 11 to 8.4 X 10 11 cm -2 and sizes from 2.2 to 5.1 nm, which is in the optimum density and size range of nanocrystal floating-gate memory application.
Heritability of milk yield and composition at different levels and variability of production (1983)

ABSTRACT Analyses of variance were conducted on first lactation milk, fat and protein production records in England and Wales of daughters of British Friesian sires. Herds were split on milk yield into high and low levels of mean production and, in subsequent analyses, into high and low levels of within herd variance and coefficient of variation using all first lactation records. Data were then extracted on daughters of 798 young sires undergoing progeny test and on 118 widely used proven sires to generate connections. Least squares analyses were conducted within levels and genetic correlations estimated from the covariance of sire effects. W ith data split on mean yield, the heritability of milk yield was 0·24 at the low level and 0·30 at the high level, that of log transformed yield being 0·25 and 0·35 respectively. With data split on variance the corresponding figures were 0·24, 0·30, 0·27 and 0·36 respectively, and when split on coefficient of variation, 0·22,0·26,0·26 and 0·32. There were similar increases for fat and protein yield, proportionately smaller increases for fat and protein content. Genetic correlations were close to 1·0 between high and low levels for all traits on all criteria of data splitting. As a consequence progeny testing of bulls is rather more accurate at high mean or variance of production levels and data can be combined optimally without scaling. Cows of the highest predicted value using an index will be found in high variance herds.
Serum Level of the Soluble Form of the CD30 Molecule Identifies Patients With Hodgkin's Disease at High Risk of Unfavorable Outcome (1998)

Preliminary reports suggested a prognostic significance for serum levels of soluble CD30 (sCD30) in patients with Hodgkin's disease (HD). In this study, we investigated the prognostic impact of sCD30 concentration at diagnosis in relation to the other recognized prognostic parameters in 303 patients with HD observed in three different institutions between 1984 and 1996. sCD30 levels were correlated with stage, presence of B symptoms, and tumor burden. High sCD30 levels entailed a higher risk of poor outcome, and the event-free survival (EFS) probability at 5 years for patients with sCD30 levels >/=100 and less than 100 U/mL was 59.9% (95% confidence interval [CI], 40.6% to 65.9%) and 87.5% (95% CI, 81.5% to 91.6%), respectively (P < .001). On the basis of the results of univariate analysis of 14 pretreatment characteristics, we included five prognostic factors (high sCD30 serum level, stage III-IV, B symptoms, low hemoglobin level, and age >/=50 years) into a multivariate model. High sCD30 and advanced stage were independently associated with an unfavorable prognosis. Their combined evaluation identified patients at high risk (stages III and IV and sCD30 >/=100 U/mL: EFS, 46.9%) and low risk (stages I and II with sCD30 <100 U/mL: EFS, 88. 7%) of treatment failure (P < .001). We conclude that the combined evaluation of sCD30 serum level and stage at presentation identifies patients with HD at high risk of an unfavorable outcome.
Time domain reflectometry liquid level sensors (2001)

The technique of time domain reflectometry (TDR) has been used by electrical engineers for testing the characteristics of transmission lines and diagnosing faults. Although TDR instruments for testing cable are commonly used today, few instrumentation engineers are aware that the technique can measure liquid levels and fluid interfaces. In this article, I review the theory and principles of time domain reflectometry and present the application of this technology as a liquid level sensor.
Optical absorption in heavily doped silicon (1981)

Optical-absorption measurements at 300 and 4 K on a series of heavily doped Si:As and Si:B samples are reported. The interband contribution is isolated and confronted with the predictions of an electron-gas calculation. Disorder effects are observed and impurity-derived states are found to play a significant role, invalidating the electron-gas model at concentrations lower than ${10}^{20}$ ${\mathrm{cm}}^{\ensuremath{-}3}$. The gap shrinkage follows a critical behavior, going to zero at the insulator-metal transition and varying approximately linearly with concentration at high doping. The discrepancy between device-based and optical determinations of the gap shrinkage is discussed.
Valves, piping and pipelines handbook (1999)

Section headings and selected papers: Fundamentals. Classification of Valves. Basic Valve Nomenclature. Pipes and Pipelines-Definitions and Explanations. Valve Types Design and Construction. Ball Valves. Globe Valves. Screw-down Valves. Pressure Valves and Services. Safety and Relief Valves. Foot Valves. Control and Automation. Float Control Valves. Pipes. Iron and Steel Pipes. Pipe Joints and Couplings. Corrosion of Stainless Steel. Pipelines/Pipework. Pipe Cutting and Bending. Pipeline Inspection and Evaluation. Jacketing and Dual Containment. Performance and Calculations. Compressible Flow in Pipes. Strength of Pipes (Calculations). Noise Control. Duties and Services. Hygienic Services. Fire Hydrant Valves. High Pressure Services. Engineering Data. Glossary. Standards and Designations. Author's Acknowledgements. Buyers' Guide to Valves and Pipes. Classified Index by Product Category. Editorial index. Advertisers index.
Chloroprene Polymers (2004)

Abstract Polychloroprene has been in commercial use for over 60 years, but continues to be the elastomer of choice for dynamic applications requiring moderate heat and oil resistance, or where long‐term environmental resistance is required. The material is manufactured by emulsion polymerization of 2‐chloro‐1,3‐butadiene. The properties of the product can be optimized for specific end used by selection of polymerization conditions, by use of comonomers such as 2,3‐dichlorobutadiene and methacrylic acid, and by choice of the method used to control molecular weight. The kinetics of the polymerization process and the structure of the polymer have been studied in detail and related to polymer properties. Commercial products vary widely in properties depending on the intended end use and the details of the manufacturing process. Tough crystalline or ionomeric polymers are preferred for adhesive applications, whereas softer, more flexible polymers are preferred for mechanical goods applications. The latter polymers may be compounded and fabricated by substantially all the techniques used for manufacture of rubber goods by molding, extrusion, or calendering operations. Latexes are used for various bonding and adhesive applications as well as for dipped goods requiring toughness in the unreinforced film.
Application of personal digital assistant technology to plant management (2009)

An extension application of plant management information systems was studied with the help of mobile equipment.PDA(personal digital assistant) was applied in plant management,the architecture of plant management information systems was opened up,the business process was improved in plant time-check,checking of maintenance spare part storage and intendance of maintenance,and the data traffic between PDA and PC was achieved.Application results of an example show that using PDA in plant management can effectively expand the application range of plant management information systems.
VIRTUAL IS SEEING BELIEVING REALITY (1992)

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 Susan M. Reiss, "VIRTUAL IS SEEING BELIEVING REALITY," Optics & Photonics News 3(4), 16-21 (1992) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
First ab Initio and Density Functional Study on the Structure, Bowl-to-Bowl Inversion Barrier, and Vibrational Spectra of the Elusive <i>C</i><sub>3</sub><i><sub>v</sub></i>-Symmetric Buckybowl:  Sumanene, C<sub>21</sub>H<sub>12</sub> (2001)

The synthetically elusive C3v symmetric sumanene (C21H12), a key structural motif of C60, was subjected to a detailed computational study, exploring the structure, bowl-to-bowl inversion dynamics, vibrational spectra, and some other physicochemical properties. Hartree−Fock (HF), pure (BLYP, BP86, and BPW91), and hybrid density functional (B3LYP, B3P86, and B3PW91) calculations were done with an array of basis sets (STO-3G, 3-21G, 6-31G*, 6-31G**, 6-311G*, 6-311G**, 6-311+G*, 6-311++G*, cc-pVDZ, and cc-pVTZ). The effect of a basis set higher than double-ζ quality and the inclusion of dynamic correlation on the geometry and bowl-to-bowl inversion barrier was insignificant. The B3LYP or HF method with the cc-pVDZ or 6-311G* basis set gave satisfactory results. The previously computed modified neglect of diatomic overlap (MNDO) value of 24.2 kcal/mol for the bowl-to-bowl inversion was found to be too high, and a revised value of 16.9 kcal/mol was obtained by the B3LYP/cc-pVTZ//B3LYP/cc-pVDZ method. Consequently, the computed results indicate that sumanene (2) is not locked in the bowl geometry and that a definitive bowl-to-bowl inversion should exist at room temperature. The highest level of theory used in the study (B3LYP/6-311G**) yields values of 1.14 Å, 2.45 D, and 98.8° for the bowl depth, dipole moment, and π-orbital axis vector angle at the hub carbon for sumanene, respectively. Interesting temperature dependency of inversion dynamics is predicted near room temperature.
Terrestrial-Based Radiation Upsets: A Cautionary Tale (2005)

Problems with terrestrial-based neutron radiation from cosmic rays have become more commonplace. While the incident rate from neutron radiation is lower than space-based radiation, physics, system design and system locations have combined to make systems increasingly vulnerable to terrestrial radiation. FPGA systems are particularly sensitive to neutron radiation, as the FPGAs, microprocessors and memory are all sensitive to upsets. We are interested in reconfigurable supercomputers, which need to be highly reliable and highly available despite being very sensitive to radiation. In this paper, we estimate the error rate for FPGAs, memory, and microprocessors so that predictions for the sensitivity of the Cray XD1 reconfigurable supercomputer can be made. We also present possible mitigation methods that are appropriate for neutron radiation upset rates.
Anti-Aging Implications of Astragalus Membranaceus (Huangqi): A Well-Known Chinese Tonic (2017)

Owing to a dramatic increase in average life expectancy and the Family Planning program of the 1970s - 1990s, China is rapidly becoming an aging society. Therefore, the investigation of healthspan-extending drugs becomes more urgent. <i>Astragalus membranaceus</i> (Huangqi) is a major medicinal herb that has been commonly used in many herbal formulations in the practice of traditional Chinese medicine (TCM) to treat a wide variety of diseases and body disorders, or marketed as life-prolonging extracts for human use in China, for more than 2000 years. The major components of <i>Astragalus membranaceus</i> are polysaccharides, flavonoids, and saponins. Pharmacological research indicates that the extract component of <i>Astragalus membranaceus</i> can increase telomerase activity, and has antioxidant, anti-inflammatory, immunoregulatory, anticancer, hypolipidemic, antihyperglycemic, hepatoprotective, expectorant, and diuretic effects. A proprietary extract of the dried root of <i>Astragalus membranaceus</i>, called TA-65, was associated with a significant age-reversal effect in the immune system. Our review focuses on the function and the underlying mechanisms of <i>Astragalus membranaceus</i> in lifespan extension, anti-vascular aging, anti-brain aging, and anti-cancer effects, based on experimental and clinical studies.