gebhart/patrepeval huggingface dataset:
Modeling and Experimental Demonstration of a Hopfield Network Analog-to-Digital Converter with Hybrid CMOS/Memristor Circuits (2015)

The purpose of this work was to demonstrate the feasibility of building recurrent artificial neural networks with hybrid complementary metal oxide semiconductor (CMOS)/memristor circuits. To do so, we modeled a Hopfield network implementing an analog-to-digital converter (ADC) with up to 8 bits of precision. Major shortcomings affecting the ADC's precision, such as the non-ideal behavior of CMOS circuitry and the specific limitations of memristors, were investigated and an effective solution was proposed, capitalizing on the in-field programmability of memristors. The theoretical work was validated experimentally by demonstrating the successful operation of a 4-bit ADC circuit implemented with discrete Pt/TiO2- x /Pt memristors and CMOS integrated circuit components.
Multiuser MIMO systems (2001)

The seemingly insatiable demand for performance and capacity in cellular wireless systems has prompted the development of myriad receiver-based signal processing techniques for using system resources more efficiently. One of the most powerful coding and signal processing paradigms for this purpose is space-time processing with multiple transmit and/or receive antennas. As discussed in previous chapters, information theoretic-results show that multiple antennas can increase rate (multiplexing gain), reliability (diversity gain), or both. In this section, we propose specific coding and signal processing schemes for blind adaptive space-time processing of MIMO multiuser systems. We make use of the Alamouti space-time block code (STBC) (Alamouti, 1998; Tarokh et al., 1999) for uplink transmission, which has been adopted in a number of 3G WCDMA standards (Lucent Technologies, 1999), and blind adaptive MMSE joint multiuser detection (Reynolds and Wang, 2001; Wang and Poor, 2004; Verdú, 1998; Honig et al., 1995), and space-time decoding for base station reception. Related work includes the results by Hochwald et al. (2001), Papadias and Huang (2001).
Preparation of Pd−Pt Bimetallic Colloids with Controllable Core/Shell Structures (1997)

Polymer-protected Pd−Pt bimetallic colloids in the size range 1.5−5.5 nm with controllable core/shell structures have been successfully prepared by a so-called hydrogen-sacrificial protective strategy. The obtained bimetallic colloids were characterized by transmission electron microscopy and infrared carbon monoxide (IR-CO) probe techniques. The Pd-core/Pt-shell and Pt-core/Pd-shell structures were confirmed by IR-CO probe characterization. IR-CO probe measurements were also performed on the Pd−Pt bimetallic colloids prepared by coreduction of the corresponding metal ions in the refluxing mixture of ethanol and water.
A 22 Mev Microtron for Radiation Therapy (1977)

The first 22 MeV micron installation for radiation therapy is described with regard to the general design, the beam transport and the gantry. The first measurements of the electron depth dose curves indicate that the distributions obtained are superior to those of most betatrons and linear accelerators. For the same electron beam energy the depth of dose maximum and the 90 or 80 per cent dose level is considerably increased. The 20.9 MV photon beam has similar depth dose characteristics as a 20 MV betatron.
Reflections on metaprogramming (1995)

By encapsulating aspects of language semantics within a set of default classes and allowing the programmer to derive new versions, object-oriented languages whose semantics can be tailored to the needs of individual programmers have been provided. The degree to which such languages are simultaneously flexible and efficient is an open question. We describe our experience with using this technique to incorporate transparent support for persistence into the Common Lisp Object System via its metaobject protocol, an open implementation based on reflection. For many aspects of our implementation the metaobject protocol was perfectly suitable. In other cases we had to choose between extending the protocol, requiring the application programmer to employ special idioms, and tolerating a large performance penalty. Based on our experience we evaluate the metaobject protocol, propose some improvements and extensions, and present performance measurements that reveal the need for improved language implementation techniques.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Arsenic-induced enhancement of ultraviolet radiation carcinogenesis in mouse skin: a dose-response study. (2004)

The present study was designed to establish the form of the dose-response relationship for dietary sodium arsenite as a co-carcinogen with ultraviolet radiation (UVR) in a mouse skin model. Hairless mice (strain Skh1) were fed sodium arsenite continuously in drinking water starting at 21 days of age at concentrations of 0.0, 1.25, 2.5, 5.0, and 10 mg/L. At 42 days of age, solar spectrum UVR exposures were applied three times weekly to the dorsal skin at 1.0 kJ/m2 per exposure until the experiment ended at 182 days. Untreated mice and mice fed only arsenite developed no tumors. In the remaining groups a total of 322 locally invasive squamous carcinomas occurred. The carcinoma yield in mice exposed only to UVR was 2.4 +/- 0.5 cancers/mouse at 182 days. Dietary arsenite markedly enhanced the UVR-induced cancer yield in a pattern consistent with linearity up to a peak of 11.1 +/- 1.0 cancers/mouse at 5.0 mg/L arsenite, representing a peak enhancement ratio of 4.63 +/- 1.05. A decline occurred to 6.8 +/- 0.8 cancers/mouse at 10.0 mg/L arsenite. New cancer rates exhibited a consistent-with-linear dependence on time beginning after initial cancer-free intervals ranging between 88 and 95 days. Epidermal hyperplasia was elevated by arsenite alone and UVR alone and was greater than additive for the combined exposures as were growth rates of the cancers. These results demonstrate the usefulness of a new animal model for studying the carcinogenic action of dietary arsenite on skin exposed to UVR and should contribute to understanding how to make use of animal data for assessment of human cancer risks in tissues exposed to mixtures of carcinogens and cancer-enhancing agents.
Identification of a Receptor for Reg (Regenerating Gene) Protein, a Pancreatic β-Cell Regeneration Factor (2000)

Reg (regenerating gene) was isolated as a gene specifically expressed in regenerating islets (Terazono, K., Yamamoto, H., Takasawa, S., Shiga, K., Yonemura, Y., Tochino, Y., and Okamoto, H. (1988) J. Biol. Chem. 263, 2111-2114). Rat and human Reg gene products, Reg/REG proteins, have been demonstrated to stimulate islet beta-cell growth in vitro and in vivo and to ameliorate experimental diabetes. In the present study, we isolated a cDNA for the Reg protein receptor from a rat islet cDNA library. The cDNA encoded a cell surface 919-amino acid protein, and the cells into which the cDNA had been introduced bound Reg protein with high affinity. When the cDNA was introduced into RINm5F cells, a pancreatic beta-cell line that shows Reg-dependent growth, the transformants exhibited significant increases in the incorporation of 5'-bromo-2'-deoxyuridine as well as in the cell numbers in response to Reg protein. A homology search revealed that the cDNA is a homologue to a human multiple exostoses-like gene, the function of which has hitherto been unknown. These results strongly suggest that the receptor is encoded by the exostoses-like gene and mediates a growth signal of Reg protein for beta-cell regeneration.
Influence of rapid thermal and low temperature processing on the electrical properties of polysilicon thin film transistors (1995)

In this paper rapid thermal processing (RTP) is studied for the crystallization and oxidation of deposited silicon layers. The purpose is to present and compare the results obtained by RTP, low temperature processing (LTP), or a combination of both, for the fabrication of polycrystalline silicon thin film transistors (poly-TFT's). The polysilicon and polyoxide are obtained by low thermal annealing, oxidation (LTA, O) and/or rapid thermal annealing, oxidation (RTA, O) of amorphous silicon films deposited from disilane at a temperature of 465/spl deg/C. For the Si films annealed at 750/spl deg/C or higher, using RTA, the grain average sizes are reduced whereas the electron/hole mobilities are increased. We suggest that there is a correlation between the optical extinction coefficient k (at /spl lambda/=405 nm), the potential barrier height /spl Phi//sub B/ due to the grains, and the field-effect mobility, /spl mu//sub n,p/, of the polysilicon film. This correlation indicates that the polysilicon film electrical properties depend not only on the grain size, but also on the crystalline quality of the grains. Moreover, it appears that the large amount of crystalline defects remaining in the so-called "grains" of the films annealed at 600/spl deg/C (LTA) are partially annihilated when the films are annealed at higher temperatures. With regards to the TFT's electrical characteristics, the work suggests combining RT and LT steps to obtain TFT's with improved electrical performance.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
The risks and rewards of online editing (1988)

The advantages and disadvantages of online editing by an editor of author-submitted materials are examined. It is concluded that online editing makes it possible to provide editing services for some documents that otherwise might not get edited at all because of schedule pressures. In shops where trespassing could be a major problem, the use of this tool helps eliminate any serious concerns. Because it is instantly available, online editing expedites author review, up to and including the very last change before a document is published.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Thermosensitive Gold Nanoparticles (2004)

Thermosensitive gold nanoparticles were fabricated by conjugating Au with a thiol-terminated poly(N-isopropylacrylamide) or PPA; this polymer stabilizer exhibits a temperature transition while undergoing a hydrophilic to hydrophobic transformation. The introduction of PPA onto gold nanoparticles has sensitized Au nanoparticles with unique temperature dependence. At low temperature (25 degrees C), the solutions containing PPA-functionalized gold nanoparticles are transparent, whereas higher temperatures (30 degrees C) lead to opaque suspensions. The thermosensitive property of PPA-functionalized Au nanoparticles is reversible, and the clear-opaque suspensions can be repeated many times.
Microbial production of hyaluronic acid: current state, challenges, and perspectives (2011)

Hyaluronic acid (HA) is a natural and linear polymer composed of repeating disaccharide units of β-1, 3-N-acetyl glucosamine and β-1, 4-glucuronic acid with a molecular weight up to 6 million Daltons. With excellent viscoelasticity, high moisture retention capacity, and high biocompatibility, HA finds a wide-range of applications in medicine, cosmetics, and nutraceuticals.Traditionally HA was extracted from rooster combs, and now it is mainly produced via streptococcal fermentation. Recently the production of HA via recombinant systems has received increasing interest due to the avoidance of potential toxins. This work summarizes the research history and current commercial market of HA, and then deeply analyzes the current state of microbial production of HA by Streptococcus zooepidemicus and recombinant systems, and finally discusses the challenges facing microbial HA production and proposes several research outlines to meet the challenges.
Afibrinogenemia Treated by Ligation of Uterine Arteries (1959)

Research Articles| March 25 2010 Afibrinogenemia Treated by Ligation of Uterine Arteries Subject Area: Further Areas , Women's and Children's Health Karl Fuchs Karl Fuchs From the Molada Hospital, Mt. Carmel, Haifa, Israel Search for other works by this author on: This Site PubMed Google Scholar Gynaecologia (1959) 148 (6): 407–411. https://doi.org/10.1159/000306414 Article history Published Online: March 25 2010 Content Tools Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Karl Fuchs; Afibrinogenemia Treated by Ligation of Uterine Arteries. Gynaecologia 1 June 1959; 148 (6): 407–411. https://doi.org/10.1159/000306414 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 ContentAll JournalsGynecologic and Obstetric Investigation Search Advanced Search Article PDF first page preview Close Modal 1959Copyright / Drug Dosage / DisclaimerCopyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. You do not currently have access to this content.
Epoxy toughening using low viscosity liquid diglycidyl ether of ethoxylated bisphenol‐A (2011)

Abstract Two new epoxy resins, diglycidyl ether of ethoxylated bisphenol‐A (BPA) with two and six oxyethylene units (DGEBAEO‐2 and DGEBAEO‐6) were synthesized and characterized. DGEBAEO‐6 was used to toughen the conventional epoxy resin diglycidyl ether of BPA (DGEBA). The blends of DGEBA with different amounts of DGEBAEO‐6 were cured by 4,4′‐diamino diphenylmethane (DDM), and their thermal and mechanical properties were examined. The DSC and DMA results presented that DGEBA/DGEBAEO‐6 blends exhibited a homogenous phase, and the glass transition temperature of the blends was inversely proportional to the content of DGEBAEO‐6. The impact strength of the cured blends was directly proportional to the content of DGEBAEO‐6, and reached five times higher than that of the neat DGEBA when 50 wt % DGEBAEO‐6 was used; the same impact strength was achieved for DDM‐cured DGEBAEO‐2. The viscosities of the blends decreased with increasing the DGEBAEO‐6 content, whereas the tensile and flexural strength and the thermal stabilities were not obviously affected. Scanning electron microscopic results confirmed that the plastic deformation inducing by the incorporated flexible oxyethylene units was responsible for the toughness improvement. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
BER optimized channel independent precoder for OFDM system (2003)

We consider the minimization of bit error rate (BER) for OFDM systems with orthogonal precoders. For low SNR, we show that the conventional OFDM system is the optimal solution and the optimal precoder is the identity matrix. For high SNR, corresponding to a relatively practical range of BER, there are channel independent solutions for optimal precoders. One such solution is the DFT matrix and the resulting optimal transceiver becomes the single carrier transmission system. Furthermore, in this case the conventional OFDM system has the largest BER among all OFDM systems with orthogonal precoders.
EVIDENCE FOR AN ULTRAVIOLET SUNSCREEN ROLE OF THE EXTRACELLULAR PIGMENT SCYTONEMIN IN THE TERRESTRIAL CYANOBACTERIUM <i>Chiorogloeopsis</i> sp. (1992)

The proposed photoprotective role of the UV-A absorbing, extracellular pigment scytonemin was studied in the terrestrial cyanobacterium Chlorogloeopsis sp. strain O-89-Cgs(1). UV-A (315-400 nm) caused growth delay, cell growth restarting only when scytonemin had accumulated in the extracellular envelopes. Cultures with scytonemin were more resistant to photoinhibition of photosynthesis than cultures without scytonemin, the differential resistance being much greater to UV-A-caused photoinhibition than to photoinhibition caused by visible light. The presence of scytonemin in the extracellular envelopes was correlated with the inability of UV-A radiation to induce strong photopigment fluorescence (685 nm emission), regardless of the specific content os photosynthetic pigments. The physical removal of the scytonemin containing extracellular envelopes brought about the loss of UV-A resistance as measured by photobleaching rates of chlorophyll a under conditions of physiological inactivity (desiccation). These observations provide strong evidence for the proposed protective role of scytonemin, as a passive UV-A sunscreen, in cyanobacteria.
Dynamic receiver biasing for inter-chip communication (2002)

A noise cancellation circuit was designed to improve the performance of a single-ended source-synchronous I/O interface. Common-mode variations between the high-frequency data bits and the DC reference against which they are compared were nulled using negative feedback. The clock and its complement were filtered at the receiving chip to establish an average value, which corresponds to duty cycle. That value was amplified and fed back to correct the biasing of the I/O receivers in such a way that the clocks were received with 50% duty-cycle. The biasing is shared among all I/O receivers. A prototype was designed in the HP-14B CMOS process and demonstrated using a current-mode I/O receiver that was developed simultaneously. The power supply voltage was 2.5-V. Measured results indicated that the noise cancellation circuit improved the receiver's bandwidth improved by 12% (1020-Mb/s vs 910-Mb/s), and system's static power-supply rejection (between transmitter and receiver) improved by a factor of 3.75 (/spl Delta/V/sub DD/=750-mV vs/spl Delta/V/sub DD/=200-mV). A more I/O conventional interface was also implemented using this technique in a 0.18 /spl mu/m CMOS process. The simulation environment allowed for a direct comparison between a conventional voltage reference transmission scheme and the dynamic biasing technique given a mismatch in transmitter and receiver process corners, a 100 cm signal trace, and a 5% static power supply gradient between the two chips. Simulated results indicated that the use of dynamic biasing reduced the timing jitter in the received eye from 1.8 ns to 1.18 ns, for a 3.0 ns bit-time.
Effect of interfacial bonding on the strength of adhesion (1975)

Abstract The strength of adhesion has been determined experimentally for an elastomer layer coupled to a rigid substrate by interfacial chemical bonds of varying surface density. Sites for interfacial bonding were obtained by treating glass plates with mixtures of vinyl‐and ethylsilanes in varying proportions. A layer of polybutadiene was then applied and cross‐linked in situ by a free‐radical process. Formation of interfacial bonds to vinyl groups (when present) on the glass substrate is inferred from the proportional increase in strength of adhesion under near‐equilibrium conditions, i.e., at low rates of detachment and at high temperatures. A 35‐fold increase in strength was found for vinylsilane, relative to ethylsilane, in rough agreement with the relative magnitudes of the strengths of covalent and dispersion bonds. However, the absolute magnitudes were much greater than predicted, by a factor of about 25 in both cases. This is attributed to the polymeric character of the elastomer: many molecular bonds must be stressed in order to detach or rupture one. 4 In agreement with this hypothesis, the strength of adhesion decreased with increasing crosslinking. Anomalously high adhesion was found with clean glass. It presumably reflects a specific bonding mechanism of unknown type.
Preparation of Protein‐Stabilized β‐Carotene Nanodispersions by Emulsification–Evaporation Method (2007)

Abstract This work was initiated to prepare protein‐stabilized β‐carotene nanodispersions using emulsification–evaporation. A pre‐mix of the aqueous phase composed of a protein and hexane containing β‐carotene was subjected to high‐pressure homogenization using a microfluidizer. Hexane in the resulting emulsion was evaporated under reduced pressures, causing crystallization and precipitation of β‐carotene inside the droplets and formation of β‐carotene nanoparticles. Sodium caseinate (SC) was the most effective emulsifier among selected proteins in preparing the nanodispersion, with a monomodal β‐carotene particle‐size distribution and a 17‐nm mean particle size. The results were confirmed by transmission‐electron microscopy analysis. SC‐stabilized nanodispersion also had considerably high ζ‐potential (−27 mV at pH 7), suggesting that the nanodispersion was stable against particle aggregation. Increasing the SC concentration decreased the mean particle size and improved the polydispersity of the nanodispersions. Nanodispersions prepared with higher β‐carotene concentrations and higher organic‐phase ratios resulted in larger β‐carotene particles. Although increased microfluidization pressure did not decrease particle size, it did improve the polydispersity of the nanodispersions. Repeating the microfluidization process at 140 MPa caused the nanodispersions to become polydisperse, indicating the loss of emulsifying capacity of SC due to protein denaturation.
Genomic regions responsible for manganese superoxide dismutase regulation in <i>Drosophila melanogaster</i> (2003)

The transcription of manganese superoxide dismutase (MnSOD), expression of which is essential for detoxification of superoxide radicals from mitochondria, has been shown to be regulated in vitro by many factors and conditions including oxidative stress, cytokines, lipopolysaccharide, cytoplasmic myc (c-myc), p53 and tumour necrosis factors. Here we describe genomic regions in Drosophila melanogaster with regulatory effects on transcription of the MnSOD gene at an organism-wide level. To understand the integrated regulation of MnSOD expression we screened chromosomes of D. melanogaster to locate deficiencies that altered the expression of MnSOD. Suppressors of MnSOD were screened by assessing the relative message abundance of MnSOD in 149 deletions covering approximately 81% of the Drosophila genome. The chromosomal deficiency Df(2R)017 significantly up-regulated MnSOD mRNA by 1.7-fold. Deficiency in four other genomic intervals, Df(1)ct-J4, Df(2L)BSC4, Df(3L)66C-G28 and Df(3R)Scr, down-regulated MnSOD expression. Changes in MnSOD expression were positively associated with paraquat sensitivity of the deletion genotypes. Thus, at least one candidate enhancer and four candidate suppressors exist in the Drosophila genome to regulate the transcriptional activity of the MnSOD gene in vivo.
Fiber Fuse Effect in Microstructured Fibers (2004)

The fiber fuse effect in microstructured silica fibers has been observed for the first time. The threshold intensity of laser radiation and some features of catastrophic damage differ considerably from those for conventional silica-based fibers.