gebhart/patrepeval huggingface dataset:
Copper and Copper Alloys (2005)

This chapter contains sections titled: Introduction Copper Alloy Families Physical Properties of Copper and Copper Alloys Mechanical Properties of Copper and Copper Alloys Corrosion Behavior Biostatic and Antimicrobial Properties Fabrication Tube and Pipe Products Copper Alloy Sleeve Bearings Standards and Specifications Additional Information References
Piezoelectric Micro- and Nanostructured Fibers Fabricated from Thermoplastic Nanocomposites Using a Fiber Drawing Technique: Comparative Study and Potential Applications (2017)

We report an all-polymer flexible piezoelectric fiber that uses both judiciously chosen geometry and advanced materials in order to enhance fiber piezoelectric response. The microstructured/nanostructured fiber features a soft hollow polycarbonate core surrounded by a spiral multilayer cladding consisting of alternating layers of piezoelectric nanocomposites (polyvinylidene enhanced with BaTiO<sub>3</sub>, PZT, or CNT) and conductive polymer (carbon-filled polyethylene). The conductive polymer layers serve as two electrodes, and they also form two spatially offset electric connectors on the fiber surface designed for the ease of connectorization. Kilometer-long piezoelectric fibers of sub-millimeter diameters are thermally drawn from a macroscopic preform. The fibers exhibit high output voltage of up to 6 V under moderate bending, and they show excellent mechanical and electrical durability in a cyclic bend-release test. The micron/nanosize multilayer structure enhances in-fiber poling efficiency due to the small distance between the conducting electrodes sandwiching the piezoelectric composite layers. Additionally, the spiral structure greatly increases the active area of the piezoelectric composite, thus promoting higher voltage generation and resulting in 10-100 higher power generation efficiency over the existing piezoelectric cables. Finally, we weave the fabricated piezoelectric fibers into technical textiles and demonstrate their potential applications in power generation when used as a sound detector, smart car seat upholstery, or wearable materials.
Simplified fast least-squares algorithms for speech predictors (1988)

The letter deals with the development of a simplified fast least-squares algorithm which is free of roundoff error accumulation. The simplified algorithm requires 9N MADPR (multiplications and divisions per recursion) rather than 10N MADPR as in the fast least squares or fast Kalman (FLS) case where N is the order of predictor. The superiority of SFLS over FLS and LMS approaches is illustrated by prediction gain performance curves for various speech signals.
Synthesis of poly(phenylsilsesquioxane) having organostannyl groups (2001)

Abstract Poly(phenylsilsesquioxane) (PSQ) having tributylstannyl groups (TBPSQ) was prepared from phenyltrimethoxysilane and bis(tributyltin) oxide [(Bu 3 Sn) 2 O] under basic conditions. The procedure, using a catalytic amount of basic reagent such as triethylamine, sodium hydroxide, or aqueous ammonia, afforded yields of TBPSQ based on Si in the range of 12–45% at a number‐average molecular weight precipitated from ethanol of about 3500. In the other procedure, starting from PSQ with (Bu 3 Sn) 2 O, the incorporation of tributylstannyl groups into PSQ proceeded effectively in the presence of an acid catalyst such as methanesulfonic acid or sulfuric acid, giving TBPSQ in moderate yields of greater than 52%. Dibutyltin oxide, a bifunctional organotin compound, was also used, affording dibutylstannylated poly(phenylsilsesquioxane) (DBPSQ) without crosslinking. The highest ratio of Si and Sn contained in TBPSQ or DBPSQ, prepared under acidic conditions, was Si/Sn = 7/1. © 2001 John Wiley & Sons, Inc. J Polym Sci Part A: Polym Chem 39: 2125–2133, 2001
The Establishment of the First Cancer Tissue Biobank at a Hispanic-Serving Institution: A National Cancer Institute–Funded Initiative between Moffitt Cancer Center in Florida and the Ponce School of Medicine and Health Sciences in Puerto Rico (2011)

Population-based studies are important to address emerging issues in health disparities among populations. The Partnership between the Moffitt Cancer Center (MCC) in Florida and the Ponce School of Medicine and Health Sciences (PSMHS) in Puerto Rico (the PSMHS-MCC Partnership) was developed to facilitate high-quality research, training, and community outreach focusing on the Puerto Rican population in the island and in the mainland, with funding from the National Cancer Institute. We report here the establishment of a Tissue Biobank at PSMHS, modeled after the MCC tissue biorepository, to support translational research projects on this minority population. This facility, the Puerto Rico Tissue Biobank, was jointly developed by a team of basic and clinical scientists from both institutions in close collaboration with the administrators and clinical faculty of the tissue accrual sites. The efforts required and challenges that needed to be overcome to establish the first functional, centralized cancer-related biobank in Puerto Rico, and to ensure that it continuously evolves to address new needs of this underserved Hispanic population, are described. As a result of the collaborative efforts between PSMHS and MCC, a tissue procurement algorithm was successfully established to acquire, process, store, and conduct pathological analyses of cancer-related biospecimens and their associated clinical-pathological data from Puerto Rican patients with cancer recruited at a tertiary hospital setting. All protocols in place are in accordance with standard operational procedures that ensure high quality of biological materials and patient confidentiality. The processes described here provide a model that can be applied to achieve the establishment of a functional biobank in similar settings.
NADH supplementation decreases pinacidil‐primed <i>I</i><sub>K(ATP)</sub> in ventricular cardiomyocytes by increasing intracellular ATP (2003)

1 The aim of this study was to investigate the effect of nicotinamide-adenine dinucleotide (NADH) supplementation on the metabolic condition of isolated guinea-pig ventricular cardiomyocytes. The pinacidil-primed ATP-dependent potassium current I(K(ATP)) was used as an indicator of subsarcolemmal ATP concentration and intracellular adenine nucleotide contents were measured. 2 Membrane currents were studied using the patch-clamp technique in the whole-cell recording mode at 36-37 degrees C. Adenine nucleotides were determined by HPLC. 3 Under physiological conditions (4.3 mM ATP in the pipette solution, ATP(i)) I(K(ATP)) did not contribute to basal electrical activity. 4 The ATP-dependent potassium (K((ATP))) channel opener pinacidil activated I(K(ATP)) dependent on [ATP](i) showing a significantly more pronounced activation at lower (1 mM) [ATP](i). 5 Supplementation of cardiomyocytes with 300 micro g ml(-1) NADH (4-6 h) resulted in a significantly reduced I(K(ATP)) activation by pinacidil compared to control cells. The current density was 13.8+/-3.78 (n=6) versus 28.9+/-3.38 pA pF(-1) (n=19; P<0.05). 6 Equimolar amounts of the related compounds nicotinamide and NAD(+) did not achieve a similar effect like NADH. 7 Measurement of adenine nucleotides by HPLC revealed a significant increase in intracellular ATP (NADH supplementation: 45.6+/-1.88 nmol mg(-1) protein versus control: 35.4+/-2.57 nmol mg(-1) protein, P<0.000005). 8 These data show that supplementation of guinea-pig ventricular cardiomyocytes with NADH results in a decreased activation of I(K(ATP)) by pinacidil compared to control myocytes, indicating a higher subsarcolemmal ATP concentration. 9 Analysis of intracellular adenine nucleotides by HPLC confirmed the significant increase in ATP.
The Family Tonnidae in the Western Atlantic (1948)

(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Miniature Differential Mobility Spectrometry Using Atmospheric Pressure Photoionization (2006)

Positive and negative ion spectra have been obtained with a miniature differential mobility spectrometer equipped with a photoionization source operating at atmospheric pressure. With benzene as a dopant, providing C6H6+ as reactant ion, protonated molecular ions and proton-bound dimer ions were obtained with dimethyl methylphosphonate and butanone. The spectra obtained from gas chromatographic injections of aromatic hydrocarbons, benzene, toluene, and the xylenes, produced the molecular ions when the moisture level was very low, but at a high level the hydrated proton was also present. Possible mechanisms for the formation of protonated products are discussed. Negative ions were produced from electron capture by sulfur hexafluoride using benzene or acetone as dopant. Photoionization of nitrogen dioxide led to the formation of the nitrate ion whose yield was a nonlinear function of concentration. The use of a suitable dopant enhanced ion formation by up to 2 orders of magnitude, and limits of detection in both the positive and negative modes were all at the sub ppm(v) level. The study makes a strong case for the use of a photoionization source as an alternative to the radioactive 63Ni source.
Interleukin-1 <i>β</i> regulation of fibroblast proteoglycan synthesis involves a decrease in versican steady-state mRNA levels (1993)

This study investigates the effects of interleukin (IL)-1 beta on proteoglycan metabolism by fibroblasts surrounded by endogenous extracellular matrix. In both three-dimensional matrix cultures and long-term monolayer cultures IL-1 beta caused a significant decrease in synthesis and deposition of sulphated proteoglycans, but had no effect on release of deposited material. The decrease in synthesis became successively more pronounced, and corresponded to 40-60% of the control after 72 h incubation. The reduction was almost totally accounted for by an effect on the chondroitin ABC-lyase-sensitive proteoglycans. Gel electrophoresis showed a significant decrease in a high-molecular-mass chondroitin ABC-lyase-sensitive proteoglycan after incubation with IL-1 beta. Northern-blot analyses of total RNA revealed a pronounced decrease in the steady-state mRNA levels of versican, the large chondroitin sulphate, with levels corresponding to 10-30% of controls. In comparison, the steady-state mRNA level for decorin, the major sulphated proteoglycan synthesized by the cells, was only slightly affected. The prominent decrease in synthesis of sulphated proteoglycans induced in long-term fibroblast cultures, including the pronounced decrease in versican steady-state mRNA levels, is likely to have a significant effect on the structure of the extracellular matrix. Induction of this type of change may constitute a significant mechanism whereby IL-1 beta can affect the properties of connective tissue during inflammation and wound healing.
Engineering Graphene for Neural Sensing and Stimulation Applications (2016)

Graphene has recently emerged as an attractive material for neural sensing and stimulation, owing to its flexibility, transparency, excellent electrical conductivity and low noise characteristics. Monolayer graphene and multi-layer porous graphene can be engineered for neural interface applications showing advantages in different aspects. The transparent monolayer graphene electrodes enable simultaneous optical imaging and electrophysiological recordings. We have demonstrated that neural tissue can be imaged through transparent graphene electrodes using multi-photon microscopy without causing any light-induced artifacts in the electrical recordings. Combining optical imaging with electrophysiological recordings enables studies of neural activity with high spatial and temporal resolution simultaneously. Furthermore, graphene electrodes exhibit five to six times less noise compared with Au electrodes of the same size in in vivo recordings. In order to increase the surface area and charge injection capability, porous graphene have been utilized to fabricate neural stimulation electrodes. The 3D structure benefits from graphene’s good conductivity and generates greatly increased capacitance compared to the planar graphene and traditionally used bulk metals. Electrochemical tests were performed on electrodes with various areas. Impedance of the porous electrodes show two orders of magnitude decrease compared to Au electrodes of comparable size. Cyclic voltammetry and pulsed voltammetry results show enhanced charge storage and charge injection capacity for the porous electrodes. 16-electrode and 64-electrode arrays fabricated using standard micro fabrication processes have been used in in vivo neural recording and stimulation experiments. We have demonstrated recordings of evoked potentials from rat somatosensory cortex with high SNR using porous graphene electrodes. Moreover, we have used same arrays for cortical stimulation from the motor cortex of rat to evoke transient ankle and knee flexion in the contralateral leg. In summary, two forms of graphene, namely the monolayer graphene and porous graphene, were engineered for different neural applications. The monolayer graphene electrode shows the capability to record brain activity while simultaneously resolving individual cells and their connections through optical imaging. The porous graphene electrode greatly increases the charge-injection capacity for neural stimulation applications.
A Control Concept Combining the Best of the Current Hydromechanical and Electronic Technologies (1974)

<div class="htmlview paragraph">The AiResearch TFE731-2 Turbofan Engine Control system was created out of a recognition of engine and aircraft operating requirements in which a free weighting of candidate control components and logic was made. From this free design iteration process, which considered both conventional and advanced concepts of control, the control described in this paper has evolved and has fulfilled the in-flight operating requirements of the engine.</div>
Polymorphisms in <i>SPINK5</i> do not associate with insect bite hypersensitivity in Icelandic horses born in Sweden (2009)

Table S1 Primer sequences used to sequence SPINK5 genomic DNA and cDNA, pyrosequencing primers, as well as a list of detected SNPs. Please note: Wiley-Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Inflight evaluation of pilot workload measures for rotorcraft research (1987)

The effectiveness of heart-rate monitoring and the NASA TLX workload rating scale (Hart et al., 1985) in measuring helicopter-pilot workloads is investigated experimentally. Four NASA test pilots flew two 2-h missions each in an SH-3G helicopter, following scenarios with takeoff, hover, cross-country, and landing tasks; pilot performance on the tasks undertaken near the landing area was measured by laser tracking. The results are presented in graphs and discussed in detail, and it is found that the TLX ratings clearly distinguish the flight segments and are well correlated with the performance data. The mean heart rate (measured as interbeat interval) is correlated (r = -0.69) with the TLX workload, but only the standard deviation of the interbeat interval is able to distinguish between flight segments; the correlation between standard deviation and TLX ratings is negative but not significant.
Metabolic Changes in Focal Brain Ischemia in Rats Treated With Human Induced Pluripotent Stem Cell-Derived Neural Precursors Confirm the Beneficial Effect of Transplanted Cells (2019)

There is currently no treatment for restoring lost neurological function after stroke. A growing number of studies have highlighted the potential of stem cells. However, the mechanisms underlying their beneficial effect have yet to be explored in sufficient detail. In this study, we transplanted human induced pluripotent stem cell-derived neural precursors (iPSC-NPs) in rat temporary middle cerebral artery occlusion (MCAO) model. Using magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS) we monitored the effect of cells and assessed lesion volume and metabolite changes in the brain. We monitored concentration changes of myo-inositol (Ins), Taurine (Tau), Glycerophosphocholine+Phosphocholine (GPC+PCh), N-acetyl-aspartate+N-acetyl-aspartyl-glutamate (NAA+NAAG), Creatine+Phosphocreatine (Cr+PCr), and Glutamate+Glutamine (Glu+Gln) in the brains of control and iPSC-NP-transplanted rats. Based on initial lesion size, animals were divided into small lesion and big lesion groups. In the small lesion control group (SCL), lesion size after 4 months was three times smaller than initial measurements. In the small lesion iPSC-NP-treated group, lesion volume decreased after 1 month and then increased after 4 months. Although animals with small lesions significantly improved their motor skills after iPSC-NP transplantation, animals with big lesions showed no improvement. However, our MRI data demonstrate that in the big lesion iPSC-NP-treated (BTL) group, lesion size increased only up until 1 month after MCAO induction and then decreased. In contrast, in the big lesion control group, lesion size increased throughout the whole experiment. Significantly higher concentrations of Ins, Tau, GPC+PCh, NAA+NAAG, Cr+PCr, and Glu+Gln were found in in contralateral hemisphere in BTL animals 4 months after cell injection. Lesion volume decreased at this time point. Spectroscopic results of metabolite concentrations in lesion correlated with volumetric measurements of lesion, with the highest negative correlation observed for NAA+NAAG. Altogether, our results suggest that iPSC-NP transplantation decreases lesion volume and regulates metabolite concentrations within the normal range expected in healthy tissue. Further research into the ability of iPSC-NPs to differentiate into tissue-specific neurons and its effect on the long-term restoration of lesioned tissue is necessary.
Bean Breeding Lines Wisconsin (RRR) 77 and Wisconsin (RRR) 831 (1978)

Abstract The first bush green beans ( Phaseolus vulgaris L.) with resistance to the important Wisconsin bean root rot disease complex ( Fusarium solani f. sp. phaseoli, Pythium spp., Rhizoctonia solani ) have been developed and released by the authors. These new green bean breeding lines have been designated Wis. (RRR) 77 and Wis. (RRR) 83 and are recommended for use in breeding programs.
Integrating tumor microenvironment with cancer molecular classifications (2015)

The composition of the tumor microenvironment is associated with a patient's prognosis and can be therapeutically targeted. A link between the cellular composition and genomic features of the tumor and its response to immunotherapy is beginning to emerge. Analyzing the microenvironment of tumor molecular subgroups can be a useful approach to tailor immunotherapies.
ChemInform Abstract: Acetylenedichlorophosphonates in the Diels‐Alder Reaction. (1990)

ChemInformVolume 21, Issue 16 Organoelement Compounds ChemInform Abstract: Acetylenedichlorophosphonates in the Diels-Alder Reaction. A. I. SENDERIKHIN, A. I. SENDERIKHIN Leningr. tekhnol. inst. im. LensovetaSearch for more papers by this authorA. V. DOGADINA, A. V. DOGADINA Leningr. tekhnol. inst. im. LensovetaSearch for more papers by this authorB. I. IONIN, B. I. IONIN Leningr. tekhnol. inst. im. LensovetaSearch for more papers by this authorA. A. PETROV, A. A. PETROV Leningr. tekhnol. inst. im. LensovetaSearch for more papers by this author A. I. SENDERIKHIN, A. I. SENDERIKHIN Leningr. tekhnol. inst. im. LensovetaSearch for more papers by this authorA. V. DOGADINA, A. V. DOGADINA Leningr. tekhnol. inst. im. LensovetaSearch for more papers by this authorB. I. IONIN, B. I. IONIN Leningr. tekhnol. inst. im. LensovetaSearch for more papers by this authorA. A. PETROV, A. A. PETROV Leningr. tekhnol. inst. im. LensovetaSearch for more papers by this author First published: April 17, 1990 https://doi.org/10.1002/chin.199016235Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume21, Issue16April 17, 1990 RelatedInformation
Regulation of the Pituitary-Thyroid Axis in Man: Relationship of TSH Concentration to Concentration of Free and Total Thyroxine in Plasma (1967)

To study thyroid-pituitary interrelationships in man, serial measurements of plasma thyrotropin (TSH), protein-bound iodine (PBI) and free thyroxine have been made in hypothyroid patients during therapy with L-thyroxine. In each patient, PBI and free thyroxine concentrations increased progressively during therapy. Conversely, initially elevated plasma TSH concentrations fell, ultimately becoming undetectable in all. Thus, a curvilinear relationship was found relating plasma TSH to both PBI and free thyroxine. At concentrations of free thyroxine below the normal, plasma TSH rises rapidly with small decrements in circulating thyroid hormone. Above this point, relatively smaller reductions in plasma TSH accompany similar increments in total or free thyroxine levels. The secretion of pituitary TSH appears to be finely regulated over a wide range of plasma thyroid hormone concentrations.
Multipurpose Vacuum Line Designs for Use in Synthetic Organometallic Chemistry (1987)

General design requirements for high vacuum line systems appropriate for use in synthetic organometallic chemistry are presented. Specific design considerations impacting on pumping station construction, vacuum gauge selection and specialty vacuum line features are then developed and discussed in relation to the modular, greaseless single and double manifold vacuum line systems which we have successfully constructed and used in our own laboratory.
Attitude control by means of explicit model predictive control, via multi-parametric quadratic programming (2005)

Explicit solutions to constrained linear MPC problems can be computed by solving multi-parametric quadratic programs (mpQP), where the parameters are the components of the state vector. The solution to the mpQP is a piecewise affine (PWA) function, which can be evaluated at each sample to obtain the optimal control law. The online computation effort is restricted to a table-lookup, and the controller can be implemented on inexpensive hardware as fixed-point arithmetics can be used. This is useful for systems with limited power and CPU resources. An example of such systems is micro-satellites, which is the focus of this paper. In particular, the explicit MPC (eMPC) approach is applied to the SSETI/ESEO micro-satellite, initiated by the European Space Agency (ESA). The theoretical results are supported by simulations.
Spectroscopy of Gd<sup>3+</sup>in KYF<sub>4</sub>: a system with several luminescent sites (1991)

The spectroscopy of Gd3+ in KYF4 is reported. Evidence is given that there are two different classes of luminescent sites: classes I and II. The positions of the crystal field components of the 6P7/2 and 6I7/2 term levels are presented. The radiative transition probabilities for the 6P7/2 to 8S7/2 transition are derived, for both classes, from decay measurements and spectral intensity measurements. At 4.2 K energy transfer occurs from class I to class II. Above 25 K energy transfer also occurs from class II to class I.