gebhart/patrepeval huggingface dataset:
A Novel Bioinspired PVDF Micro/Nano Hair Receptor for a Robot Sensing System (2010)

This paper describes the concept and design of a novel artificial hair receptor for the sensing system of micro intelligent robots such as a cricket-like jumping mini robot. The concept is inspired from the natural hair receptor of animals, also called cilium or filiform hair by different research groups, which is usually used as a vibration receptor or a flow detector by insects, mammals and fishes. The suspended fiber model is firstly built and the influence of scaling down is analyzed theoretically. The design of this artificial hair receptor is based on aligned suspended PVDF (polyvinylidene fluoride) fibers, manufactures with a novel method called thermo-direct drawing technique, and aligned suspended submicron diameter fibers are thus successfully fabricated on a flexible Kapton. In the post process step, some key problems such as separated electrodes deposition along with the fiber drawing direction and poling of micro/nano fibers to impart them with good piezoeffective activity have been presented. The preliminary validation experiments show that the artificial hair receptor has a reliable response with good sensibility to external pressure variation and, medium flow as well as its prospects in the application on sensing system of mini/micro bio-robots.
Increasing the size of atomic instruction blocks using control flow assertions (2000)

For a variety of reasons, branch-less regions of instructions are desirable for high-performance execution. In this paper, we propose a means for increasing the dynamic length of branch-less regions of instructions for the purposes of dynamic program optimization. We call these atomic regions frames and we construct them by replacing original branch instructions with assertions. Assertion instructions check if the original branching conditions still hold. If they hold, no action is taken. If they do not, then the entire region is undone. In this manner, an assertion has no explicit control flow. We demonstrate that using branch correlation to decide when a branch should be converted into an assertion results in atomic regions that average over 100 instructions in length, with a probability of completion of 97%, and that constitute over 80% of the dynamic instruction stream. We demonstrate both static and dynamic means for constructing frames. When frames are built dynamically using finite sized hardware, they average 80 instructions in length and have good caching properties.
A single mediaprocessor-based programmable ultrasound system (2003)

We have developed a programmable ultrasound imaging system using a single commercially available mediaprocessor. We have efficiently mapped all of the necessary B-mode processing algorithms on the underlying processor architecture, including envelope detection, dynamic range compression, lateral and axial filtering, persistence processing, and scan conversion. Our system can handle varying specifications ranging from 128 vectors and 512 samples per vector to more than 256 vectors and 1024 samples per vector. For an image size of 330 vectors and 512 samples per vector, it can process 30 frames per second using a 300-MHz MAP-CA mediaprocessor from Hitachi/Equator Technologies. This programmable ultrasound machine will not only offer significant advantages in terms of low cost, portability, scalability, and reduced development time, but also provide a flexible platform for developing and deploying new clinical applications to aid the clinicians and improve the quality of healthcare to patients.
The Role of Canceled Warrants in the LME Market (2019)

This article visits the question of whether canceled warrants (CWs) have a positive effect on LME metal prices. To examine this question carefully, a regression model is applied. This paper finds a statistically significant positive link between CWs and LME metal prices, including aluminum, zinc, tin, and nickel. However, other metals such as copper and lead are not statistically significant. The second objective of the study is to identify the dynamic response of metal price returns for aluminum, zinc, tin, and nickel to an innovation in the CWs using VAR. It is found that the positive impact of the CWs on metal returns is transitory.
The conversion of bulk CMOS circuits to SOI technology and its noise impact (2003)

The faster switching speed and smaller parasitic capacitance of SOI circuits have provided 20% performance improvement over their bulk predecessors, but the characteristics of SOI circuits also introduced significant noise problems that cannot be overlooked. This paper addresses the design issues of remapping bulk CMOS circuits to the SOI technology, and discusses how to minimize the power supply noise by optimizing the placement of on-chip decoupling capacitors.
Preparation and activity of synthetic unmodified mammalian tRNAi Met in initiation of translation in vitro (2001)

Translation of eukaryotic mRNA is initiated by a unique amino-acyl tRNA, Met-tRNAi(Met), which passes through a complex series of highly specific interactions with components of the translation apparatus during the initiation process. To facilitate in vitro biochemical and molecular biological analysis of these interactions in fully reconstituted translation initiation reactions, we generated mammalian tRNAi(Met) by in vitro transcription that lacked all eight base modifications present in native tRNAi(Met). Here we report a method for in vitro transcription and aminoacylation of synthetic unmodified initiator tRNAi(Met) that is active in every stage of the initiation process, including aminoacylation by methionyl-tRNA synthetase, binding of Met-tRNAi(Met) to eIF2-GTP to form a ternary complex, binding of the ternary complexes to 40S ribosomal subunits to form 43S complexes, binding of the 43S complex to a native capped eukaryotic mRNA, and scanning on its 5' untranslated region to the correct initiation codon to form a 48S complex, and finally joining with a 60S subunit to assemble an 80S ribosome that is competent to catalyze formation of the first peptide bond using the [35S]methionine residue attached to the acceptor terminus of the tRNAi(Met) transcript.
The effect of field cooling and field orientation on the martensitic phase transformation in a Ni2MnGa single crystal (2000)

The temperature and field dependence of the magnetization in a Ni2MnGa single crystal was measured using a magnetometer with an applied field oriented in the [001] and [011] directions, respectively, of the parent cubic phase. It was found that the magnetic field magnitude and direction could be used to determine the magnetization of the sample during a thermal transformation from the austenitic phase to the martensite phase. This is explained in terms of a magnetic field induced growth of the twin variant having a favorable orientation to the external magnetic field. A model to interpret the magnetic response in terms of aligned twin variants in the shape memory material is discussed.
Shape selectivity for alkane hydroxylation with a new class of phosphonate-based heterogenised manganese porphyrins (1998)

Four new manganese(III) porphyrins, heterogenised as insoluble zinc phosphonates, exhibit behaviour markedly different from their homogeneous counterparts in the competitive hydroxylation of alkane mixtures (i.e., cyclododecane–cyclohexane), using iodosylbenzene as the oxidant. The cyclohexanol:cyclododecanol ratio can be increased by as much as five, owing to shape selectivity effects imposed by the phosphonate support. Se′lectivite′ de forme pour l'hydroxylation d'alcanes, catalyse′e par des porphyrines de manganèse he′te′roge′ne′ise′es sous forme de phosphonates de zinc. Une se′rie de quatre te′traarylporphyrines de manganèse(III) he′te′roge′ne′ise′es sous forme de phosphonates de zinc insolubles, teste′es pour l'hyroxylation compe′titive de me′langes d'alcanes (par exemple, cyclodode′cane–cyclohexane) par l'iodosobenzène, montrent un comportement très diffe′rent de celui de leurs homologues non supporte′s en milieu homogène. Le rapport cyclohexanol:cyclodode′canol peut augmenter d'un facteur allant jusqu'à cinq, sous l'effet d'une se′lectivite′ de forme induite par le support phosphonate.
Cell proliferation induced by triiodothyronine in rat liver is associated with nodule regression and reduction of hepatocellular carcinomas. (2000)

Previous studies have demonstrated that short-term treatment with peroxisome proliferators decreased the size and number of gamma-glutamyl transpeptidase or placental glutathione S-transferase (GSTP)-positive hepatic hyperplastic lesions. In this study, we have examined the effect of the hormone triiodothyronine (T3), which, similarly to peroxisome proliferators, is a strong liver mitogen and a ligand of nuclear receptors, on the growth of GSTP-positive nodules generated by the resistant hepatocyte model and on the development of hepatocellular carcinoma. Hepatic hyperplastic nodules were induced in male Fischer rats by a single dose (150 mg/kg) of diethylnitrosamine, followed by a 2-week exposure of the animals to 2-acetylaminofluorene and partial hepatectomy. Nine weeks after diethylnitrosamine administration, rats were switched to a diet containing 4 mg/kg T3 for 1 week (experiment 1) and sacrificed during T3 feeding or were exposed to seven cycles of T3-supplemented diet (1 week/month per 7 months), and sacrificed 6 months after the last cycle (experiment 2). Results showed that T3 treatment for 1 week caused a 70% reduction in the number of GSTP-positive nodules (14/cm2 in T3-fed rats versus 44/cm2 of control animals), as well as GSTP-positive area (12% versus 43% of controls). Reduction in the number of GSTP-positive nodules observed 1 week after T3 feeding was associated with a strong increase in the labeling index of enzyme-altered nodules compared with that of controls (labeling index was 64 and 31%, respectively). No significant differences in the apoptotic index were observed between the two groups. Results from experiment 2 did reveal that although rats treated with diethylnitrosamine + 2-acetylaminofluorene developed 100% hepatocellular carcinoma and 33% of them showed lung metastasis, only 50% of rats exposed to repeated cycles of triiodothyronine developed hepatocellular carcinoma with no lung metastasis. This study indicates that cell proliferation per se might not necessarily represent a promoting condition for putative preneoplastic lesions and demonstrates an anticarcinogenic effect of T3.
Chemical Cross-Linking Gelatin with Natural Phenolic Compounds as Studied by High-Resolution NMR Spectroscopy (2010)

Cross-linking gelatin with natural phenolic compound caffeic acid (CA) or tannic acid (TA) above pH 9 resulted in formation of insoluble hydrogels. The cross-linking reactivity was controlled by variation of pH, the concentration of the gelatin solution, or the amount of CA or TA used in the reaction. The cross-linking chemistry was studied by high-resolution NMR technique in both solution and solid state via investigation on small molecular model systems or using (13)C enriched caffeic acid (LCA) in the reaction with gelatin. Direct evidence was obtained to confirm the chemical reactions occurring between the phenolic reactive sites of the phenolic compounds and the amino groups in gelatin to form C-N covalent bonds as cross-linking linkages in gelatin matrix. The cross-linked network was homogeneous on a scale of 2-3 nm. The cross-linking resulted in a significant decrease in the molecular mobility of the hydrogels, while the modulus of the films remained at high values at high temperatures.
Effect of Variants of Penicillin-Binding Protein 2 on Cephalosporin and Carbapenem Susceptibilities in Neisseria gonorrhoeae (2015)

To characterize the relationship between penicillin-binding protein 2 (PBP2/penA) and susceptibility to extended-spectrum cephalosporins (ESCs) and carbapenem antibiotics, we compared 17 PBP2 variants in Neisseria gonorrhoeae. Nonmosaic and mosaic variants of PBP2 caused decreased susceptibility to ESCs and, to a lesser extent, to carbapenems. An A501P substitution in mosaic XXXIV_A501P conferred decreased susceptibility to ESCs but restored carbapenem susceptibility to wild-type levels. These results could aid the molecular surveillance of antimicrobial resistance to these agents.
Assessment of Interference by Heparin Cofactor II in the DuPont aca® Antithrombin-III Assay (1988)

Hereditary deficiency of antithrombin-III (AT-III), the major heparin cofactor in human plasma, is a well-established cause of recurrent venous thrombosis. Cross-reactivity of heparin cofactor II (HC II) in assays of AT-III may, in some cases, interfere with the ability to diagnose hereditary deficiency of AT-III. For that reason, we have evaluated the interference by HC II in the new DuPont aca antithrombin assay. Response of the assay to purified AT-III and HC II was compared. Inhibition of the bovine thrombin in the assay was sixfold less per molecule of HC II than of AT-III. This level of selectivity should be adequate to prevent misdiagnosis of patients. Analysis of patient samples showed close correlation (r = 0.91) of values from the automated aca assay with those of a manual assay (Coatest antithrombin, Helena Laboratories).
Neuronal Nicotinic Receptors: One Hundred Years of Progress (2007)

Abstract Neuronal nicotinic cholinergic receptors mediate the actions of acetylcholine in ganglia and the CNS. These receptors are pentameric proteins formed from combinations of 12 different subunits. Thus, this family of receptors consists of multiple subtypes defined by their subunit composition. All of the receptors are ligand‐gated cation channels that pass sodium, potassium and calcium, but the different subtypes have different biophysical and pharmacological characteristics. These receptors are located on the axons of catecholamine, GABA, acetylcholine and glutamate neurons, so they can influence a large number of diverse functions in the nervous system. In addition to mediating the essential actions of endogenous acetylcholine, these receptors are the primary target of nicotine, the addictive agent in tobacco. Thus, these receptors are directly related to the single most preventable cause of premature morbidity and mortality. In this chapter, we review some of the fundamental aspects of these receptors, with emphasis on the differences in pharmacology among the receptor subtypes and their unusual regulation by exposure to nicotine.
Proliferation of Small Fat Cells Derived from Unilocular Fat Cells of Rats in Collagen Gel Matrix Culture. (1997)

The proliferative ability of fat cells has been studied both in the adipose tissue in vivo and in culture. We studied the proliferation of unilocular fat cells of young rats in a threedimensional collagen gel matrix culture, which provides a physiological environment for fat cells. In this setting, the unilocular fat cells were able to maintain their cellular functions and actively proliferate. In this study using cells derived from 3 to 6-week-old rats, we observed the appearance of very small fat cells at the surface of unilocular fat cells following the division of the nucleus. We concluded that small fat cells were created mostly in a “budding” manner, and then proliferated. Insulin accelerated both the budding and proliferation process. In other unilocular fat cells, lipid droplets divided after the division of the nucleus, and very small fat cells appeared within the unilocular fat cells in a “sharing” manner. Adenosine deaminase, a potent lipolytic factor, accelerated this process. An analysis of the cellular volume by a Coulter counter confirmed the proliferation of small fat cells derived from the unilocular fat cells. These small fat cells grew and developed into unilocular fat cells. It is supposed that not all unilocular fat cells are terminally differentiated, nor do they lose their proliferative activity.
Economic, Water Quantity and Quality Results from a House with a Rainwater Tank in the Inner City (2002)

A dual water supply system (rainwater and mains water) has been installed at an old house in Maryville a inner city suburb of Newcastle in New South Wales, Australia. A design was developed for the installation of a rainwater tank to supply rainwater for toilet, hot water and outdoor uses. The rainwater supply is supplemented with mains water via a trickle top up system when water levels are low in the tank. An air gap is used for backflow prevention in accordance with Australian standards. The design, construction and performance of the dual water supply system at the Maryville house are examined in this paper. Monitoring of water quality from the rainwater tank and from an instantaneous hot water service at the Maryville house has revealed that the rainwater was acceptable for hot water, toilet and outdoor uses. Rainwater used in the hot water service was compliant with Australian drinking water standards. The cost of rainwater has been found to be $0.3 per kL which is less than the price of mains water in the Lower Hunter region and the commonly assumed cost of $1 to $14 per kL.
MobileSOA: A Service Oriented Web 2.0 Framework for Context-Aware, Lightweight and Flexible Mobile Applications (2008)

Current enterprise application mobility approaches tend to extend desktop paradigms to the mobile space. We believe that enterprise application mobility needs to evolve to a mobile-oriented business computing paradigm, where business functions and relevant collaboration options are made available to a large number of mobile users in the most appropriate manner. In this paradigm, users get just enough information and resources needed to make a business decision and execute it in a simple and secure manner. We present a service-oriented framework that allows mobile applications to easily interface with enterprise backends, and be lightweight and flexible through in-built context awareness and a Web 2.0 front-end. It allows interleaved execution of local, ambient and remote services; and provides both users and enterprises the ability to create, provision and execute lightweight dynamic applications. At the same time, the framework allows enterprises to control services and data users access through their devices.
Capacity of multiple-transmit multiple-receive antenna architectures (2002)

The capacity of wireless communication architectures equipped with multiple transmit and receive antennas and impaired by both noise and cochannel interference is studied. We find a closed-form solution for the capacity in the limit of a large number of antennas. This asymptotic solution, which is a sole function of the relative number of transmit and receive antennas and the signal-to-noise and signal-to-interference ratios (SNR and SIR), is then particularized to a number of cases of interest. By verifying that antenna diversity one can substitute for time and/or frequency diversity at providing ergodicity, we show that these asymptotic solutions approximate the ergodic capacity very closely even when the number of antennas is very small.
Protective role of adenine nucleotide translocase in O2-deficient hearts (1984)

At subsaturating concentrations of palmitoyl-CoA, the carnitine-dependent oxidation of the palmitoyl portion by uncoupled rat heart mitochondria was stimulated by ADP or ATP. This effect was traced to the prevention of acyl-CoA binding to adenine nucleotide translocase and the consequent sparing of acyl-CoA for acylcarnitine formation. Palmitoyl-CoA oxidation was stimulated by ITP also although ITP served neither as a transportable substrate nor as an inhibitor of ADP transport. ITP and other nontransportable nucleoside di(tri)phosphates prevented octanoyl-CoA binding to mitochondria. ITP was bound to mitochondria, and this binding was reversed by ADP, octanoyl-CoA, and carboxyatractyloside. Thus, besides a substrate site, there is a site on the translocase that binds nucleoside di(tri)phosphates, CoA and its esters, and atractylosides; inhibition of the translocase results, however, only from the binding of CoA esters of fatty acids and of atractylosides. We suggest that in O2-deficient hearts, when nucleotides decline and fatty acyl-CoA rises, the binding of the latter to the translocase becomes operational to slow fatty acylcarnitine production. By retarding the rise in amphipathic burden, this mechanism could protect heart against irreversible damage during brief periods of ischemia or hypoxia.
1,2-Diacetates by epoxide ring opening promoted by erbium(III) triflate (2006)

Erbium triflate is able to afford vic-diacetates in better yields, lower catalyst amounts and shorter times than most of the reported methods. Therefore, the present procedure represents a valuable, general and environmentally benign procedure to prepare these compounds.
Thin film magnetic head for perpendicular (vertical) recording (1988)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Herbert Schewe, Heinrich Diepers; Thin film magnetic head for perpendicular (vertical) recording. J. Acoust. Soc. Am. 1 November 1988; 84 (5): 1968. https://doi.org/10.1121/1.397083 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 ContentAcoustical Society of AmericaThe Journal of the Acoustical Society of America Search Advanced Search |Citation Search
Er-doped light emitting slot waveguides monolithically integrated in a silicon photonic chip (2013)

An integrated erbium-based light emitting diode has been realized in a waveguide configuration allowing 1.54 μm light signal routing in silicon photonic circuits. This injection device is based on an asymmetric horizontal slot waveguide where the active slot material is Er(3+) in SiO2 or Er(3+) in Si-rich oxide. The active horizontal slot waveguide allows optical confinement, guiding and lateral extraction of the light for on-chip distribution. Light is then coupled through a taper section to a passive Si waveguide terminated by a grating which extracts (or inserts) the light signal for measuring purposes. We measured an optical power density in the range of tens of μW/cm(2) which follows a super-linear dependence on injected current density. When the device is biased at high current density, upon a voltage pulse (pump signal), free-carrier and space charge absorption losses become large, attenuating a probe signal by more than 60 dB/cm and thus behaving conceptually as an electro-optical modulator. The integrated device reported here is the first example, still to be optimized, of a fundamental block to realize an integrated silicon photonic circuit with monolithic integration of the light emitter.
Effect of Nebivolol on Outcome in Elderly Patients with Heart Failure and Atrial Fibrillation: Insights from SENIORS (2012)

Nebivolol failed to improve outcomes in elderly patients with stable heart failure and co-existing AF, irrespective of LVEF. Furthermore, in patients with AF, outcome was comparable between patients with preserved and impaired LVEF.
BROAD-BAND DIPOLE FOR RFID APPLICATIONS (2010)

A novel planar dipole for Ultra-High-Frequency (UHF) Radio Frequency Identification (RFID) systems is presented here.Referring to a realization based on the use of a chip produced by Texas Instruments, the proposed design approach has been numerically and experimentally investigated.Reported results demonstrate that the proposed antenna exhibits good radiation properties and matching (|S 11 | < -10 dB) over the entire UHF RFID bandwidth (860-960 MHz).