gebhart/patrepeval huggingface dataset:
Real-time RF self-interference cancellation for in-band full duplex (2015)

We demonstrate a real-time RF self-interference cancellation scheme for in-band full duplex using an electrical balance duplexer. The balance network in the duplexer has four 8-bit tunable capacitor banks, creating a four dimensional optimization space with over 4 billion settings. We present a particle swarm optimizer that is able to find a close to optimal solution within 1 ms. The goal of this demo is to show a self-interference cancellation scheme for very dynamic environments. More specifically our demo is able to mitigate instantaneous changes in the antenna impedance in order to keep the self-interference below the threshold.
Incidence Bounds for Block Designs (2014)

We prove three theorems giving extremal bounds on the incidence structures determined by subsets of the points and blocks of a balanced incomplete block design (BIBD). These results generalize and strengthen known bounds on the number of incidences between points and $m$-flats in affine geometries over finite fields. First, we show an upper bound on the number of incidences between sufficiently large subsets of the points and blocks of a BIBD. Second, we show that a sufficiently large subset of the points of a BIBD determines many t-rich blocks. Third, we show that a sufficiently large subset of the blocks of a BIBD determines many t-rich points. These last two results are new even in the special case of incidences between points and $m$-flats in an affine geometry over a finite field. As a corollary we obtain a tight bound on the number of t-rich points determined by a set of points in a plane over a finite field, and use it to sharpen a result of Iosevich, Rudnev, and Zhai on the number of triangles with distinct areas determined by a set of points in a plane over a finite field.
[Cell population mechanisms of inhibition of erythropoiesis in polycythemia]. (1977)

The ciliary activity of Ctenophore bolinopsis is inhibited by decreasing concentration of Mg2+ and increasing concentration of Ca2+ in the medium. The same changes in Mg2+ and Ca2+ concentration trigger muscle contractions and bioluminescence. Co2+ arrests the cilia beating in the rectangular position. An increase in Mg2+ concentration or decrease in Ca2+ concentration switch off the nervous inhibitory mechanisms of ciliary activity, suppress muscle contractions and bioluminescence. Ni2+ produces a similar effect, but the ciliary heating is only slightly accelerated, by the contrast to the effect of increased Mg2+ concentration. A Cl-free medium Mn2+ and tetrodotoxin in commonly used concentrations are of no effect on the systems studied. Experiments involving changes in K+ concentrations and administration of tetraethylammonium suggest that the resting potential in the examined cells may be due to K+ as the most permeant ion, and that K+-channels in the cell membrane may be voltage--controlled. The proposal about "biionic" (Ca2+/Mg2+) bioelectric control of a number of intracellular reactions is discussed.
Continuous-flow hollow-fiber dialysis system for preparation of bovine carrier erythrocytes (1985)

Small and large molecules were encapsulated in bovine RBC by a dialysis process. Encapsulation efficiencies were approximate 30%, yielding normal carrier cells. The new process of encapsulation used hollow fibers and was a continuous-flow system. Preparation of carrier RBC by hollow-fiber dialysis was compatible with blood banking principles. The continuous-flow system was easily assembled from commercially available hollow-fiber units.
Noncontacting optical probe (1987)

A description is given of an optical probe, consisting of an optical microscope with modified internal illumination, a dual chopper with its two edges straddling the image plane, and a dual area sensor mounted behind the chopper. An analysis shows that the sensitivity of this proximity probe is essentially the same as that of the Simon probe, while its linearity is much better. Also, its construction is much simpler. A prototype has shown resolution of 0.02 μm and linearity errors of 0.5 μm (at 100-μm range), respectively.
In Vitro Volume Imaging of Articular Cartilage Using Chirp-Coded High Frequency Ultrasound (2018)

Coded waveforms are frequently used as excitation pulses in ultrasonic systems e.g. to reduce noise and increase the penetration depth. The current work focuses on ultrasonic imaging of thick articular cartilage samples using a customized ultrasonic microscope scanning system. Long chirp-coded waveforms were employed on this system and investigated on the cartilage samples using both a matched-and Wiener-filter for wave compression. A short excitation pulse typically used in most commercial acoustic scanning microscope systems was also tested, and compared to the coded/compressed ones in terms of C-and B-scan images.
New fluorocarbon free chemistry proposed as solution to limit porous SiOCH film modification during etching (2013)

Today porous SiOCH combined with metallic hard masking strategy is an integration of choice for advanced BEOL interconnect technology node. However in this context the main integration issue is the dielectric film sensitivity to fluorocarbon (FC) etch chemistry. In this study, new FC free etching chemistry has been proposed as breakthrough solution. Based on pattern and blanket film analyses, the benefits of this new chemistry is presented and discussed with respect to conventional FC etching. Its compatibility with metallic hard mask integration and wet cleaning is also evaluated.
Insecticidal Cyclodepsipeptides from Beauveria felina (2011)

A novel cyclodepsipeptide, iso-isariin B (1), and the known isaridin E (2) were isolated from the entomopathogenic fungus Beauveria felina. Their structures were elucidated using MS/MS fragmentation and extensive 2D-heteronuclear NMR. The X-ray structure of isaridin E was obtained, showing two potent intramolecular H bonds and a type-VI turn with the HyLeu(1)-Pro(2) amide bond in a cis conformation. Iso-isariin B (1) was active against the pest-insect Sitophilus spp. with an LD(50) value of 10 μg/mL. This observation also gives some clues for ecological interpretation of cyclodepsipeptide production by B. felina.
Methacryloyl functionalized hydrazones as hole-transporting materials for electrophotography (2009)

Syntheses and thermal, optical as well as photoelectrical properties of carbazolyl-, triphenylamino-and 2-hydroxy-4-diethylaminophenyl-based hydrazones with reactive methacryloyl groups have been reported. All the synthesized materials form glasses with glass transition temperatures ranging from 9 to 50 °C. They absorb electromagnetic radiation in the 250–440 nm range. Ionization potentials of the amor-phous films of the synthesized materials, established by electron photoemission technique range from 5.20 to 5.71 eV. The lowest ionization potential and the best charge transport properties were observed for 2-(methacryloyl)oxy-4-diethylaminophenyl-1-carbaldehyde N,N-diphenylhydrazone. Time-of-flight hole mobilities in its 50 % solid solution in bisphenol Z polycarbonate reach 10–5 cm2/(V⋅s) at high electric fields. Key words: reactive hydrazone; glass; ionization potential; charge mobility 1.
Highly Selective Differential-Mode Wideband Bandpass Filter for UWB Application (2011)

A novel highly selective wideband differential-mode bandpass filter (BPF) with good common-mode suppression is proposed on microstrip line for ultra-wideband (UWB) application. The initial BPF is similar to a two-stage branch-line structure in geometry and its improved one is formed by stretching the two vertical arms on the input and output ports from λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">g</sub> /4 to 3 λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">g</sub> /4. The aim is to achieve better filter selectivity by adding two additional transmission zeros from the extended arms. In our design, a symmetrical filter with two pairs of external ports is firstly decomposed into two bisections with two single ports under differential- and common- mode excitations. Our study shows that the two-port bisection circuits achieve bandpass and bandstop filtering performances under the differential- and common-mode operation in the lower UWB band, i.e., 3.1-5.1 GHz. The wideband differential-mode BPF is then designed and fabricated. All the three sets of results from the simulations based on the circuit model, fullwave software, and actual measurement are found in good agreement with one another. A highly selective differential-mode passband is achieved in the frequency range of 2.8-5.3 GHz, with a common-mode suppression of about 20 dB.
Effects of mean shear on the local turbulent entrainment process (2013)

We report on effects of mean shear on the turbulent entrainment process, focusing in particular on their relation to small-scale processes in the proximity of the turbulent/non-turbulent interface (TNTI). Three-dimensional particle tracking velocimetry (3D-PTV) measurements of an axisymmetric jet are compared to data from a direct numerical simulation (DNS) of a zero-mean-shear (ZMS) flow. First, conditional statistics relative to the interface position are investigated in a pseudo-Eulerian view (i.e. in a fixed frame relative to the interface position) and in a Lagrangian view. We find that in a pseudo-Eulerian frame of reference, both vorticity fluctuations and mean shear contribute to the vorticity jump at the boundary between irrotational and turbulent regions. In contrast, the Lagrangian evolution of enstrophy along trajectories crossing the entrainment interface is almost exclusively dominated by vorticity fluctuations, at least during the first Kolmogorov time scales after passing the interface. A mapping between distance to the instantaneous interface versus conditional time along the trajectory shows that entraining particles remain initially close to the TNTI and therefore attain lower average enstrophy values. The ratio between the rate of change of enstrophy in the two frames of references defines the local entrainment velocity ${v}_{n} = - (\\mathrm{D} {\\omega }^{2} / \\mathrm{D} t)/ (\\partial {\\omega }^{2} / \\partial {\\hat {x} }_{n} )$ , where ${\\omega }^{2} $ is enstrophy and ${\\hat {x} }_{n} $ is the coordinate normal to the TNTI. The quantity ${v}_{n} $ is decomposed into mean and fluctuating components and it is found that mean shear enhances the local entrainment velocity via inviscid and viscous effects. Further, the analysis substantiates that for all investigated flow configurations the local entrainment velocity depends considerably on the geometrical shape of the interface. Depending on the surface shape, different small-scale mechanisms are dominant for the local entrainment process, i.e. viscous effects for convex shapes and vortex stretching for concave shapes, looking from the turbulent region towards the convoluted boundary. Moreover, turbulent fluctuations display a stronger dependence on the shape of the interface than mean shear effects
Oxotrichlororhenium(V), ReOCl3 (1971)

The preparation of ReOCl3, by photodecomposition of ReOCl4 and other methods, is described.
New PVC resin for wood–polymer composites (2008)

The market of wood–polymer composites in the building and construction sector is focused on external long term applications such decking, siding and window sills. The current PVC market share of 14% is described and the reasons for its sharp predicted growth in the next few years are discussed. Recent technical studies and developments are reviewed. The influence of wood fibre size on the processing of the composites and their mechanical properties is reported. The water absorption of wood–polymer composites, including the capillarity effect, and the evolution of mechanical properties with water content has also been investigated. A special resin with rapid gelation has been developed, giving improved properties with increased productivity. Finally, the progress made in European standardisation and initial work to establish a quality label are described.
Pilus-based vaccine development in streptococci: variability, diversity and immunological responses. (2014)

<title>Abstract</title> This chapter reviews genetic variability and molecular epidemiology data available on the pilus encoding islets of <italic>Streptococcus pneumoniae</italic>, <italic>S. agalactiae</italic>, <italic>S. pyogenes</italic> and <italic>S. suis</italic>. Immunological and preclinical protection data are also presented, if available. Finally, similarities and differences identified among the different streptococci are discussed.
Mutations in the IRBIT domain of ITPR1 are a frequent cause of autosomal dominant nonprogressive congenital ataxia (2016)

Congenital ataxias are nonprogressive neurological disorders characterized by neonatal hypotonia, developmental delay and ataxia, variably associated with intellectual disability and other neurological or extraneurological features. We performed trio-based whole-exome sequencing of 12 families with congenital cerebellar and/or vermis atrophy in parallel with targeted next-generation sequencing of known ataxia genes (CACNA1A, ITPR1, KCNC3, ATP2B3 and GRM1) in 12 additional patients with a similar phenotype. Novel pathological mutations of ITPR1 (inositol 1,4,5-trisphosphate receptor, type 1) were found in seven patients from four families (4/24, ∼16.8%) all localized in the IRBIT (inositol triphosphate receptor binding protein) domain which plays an essential role in the regulation of neuronal plasticity and development. Our study expands the mutational spectrum of ITPR1-related congenital ataxia and indicates that ITPR1 gene screening should be implemented in this subgroup of ataxias.
Respiratory Cycle-Dependent Atrial Trachycardia; its Unique Characteristics and Relation with Autonomic Nerve System. (2012)

Respiration influences the sinus heart rate, however, little is still known about the tachyarrhythmias related to respiration. Atrial tachycardia (AT) rarely emerges during inspiration and it also ceases during expiration. This type of AT is thus called respiratory cycle-dependent atrial tachycardia (RCAT), and it demonstrates a centrifugal activation pattern. Based on these peculiar P wave morphologies, the foci converged either around the right superior pulmonary vein (RSPV) or inside the superior vena cava where the anterior right ganglionated plexi (ARGP) is considered to be located. The mechanism of such AT is therefore thought to be related to the activity of the autonomic system.
Estimation of central venous pressure by measurement of proximal axillary venous pressure using a “half‐way” catheter (1986)

The pressure in the proximal axillary vein (AVP) was compared with central venous pressure (CVP) in eight patients during and after elective abdominal surgery. Both pressures were recorded from soft, elastic, polyurethane catheters inserted in the basilic or cephalic veins ("half-way" catheters), punctured at the fossa cubiti (AVP), and via the right jugular vein (CVP). The AVP and CVP were recorded simultaneously using hydrostatic, conventional disposable venous pressure measurement sets. The measurements were performed during intermittent positive pressure ventilation with positive end-expiratory pressure from 0 to 7.5 cmH2O (0-0.74 kPa), as well as during spontaneous breathing. During both controlled and spontaneous respiration, small mean differences (0.2-1.0 cmH2O) (0.02-0.1 kPa), and a highly significant (P less than 0.001) positive correlation between CVP- and AVP-values were found. An increase of 1 cmH2O (0.10 kPa) in the CVP was associated with an increment of practically identical order (0.99-1.04 cmH2O) (0.10-0.11 kPa) in the AVP. The results suggest that monitoring of the AVP by a basilic "half-way" catheter produces diagnostic information similar to that from the measurement of the CVP from subclavian, external or internal jugular, as well as "long-way" brachial catheter, with no risk of the major mechanical complications which accompany the use of the latter catheters.
Rotational thromboelastometry (ROTEM) profiling of COVID–19 patients (2021)

We evaluated coagulation abnormalities via traditional tests and rotational thromboelastometry (ROTEM) in a group of 94 patients with confirmed SARS-CoV-2 infection and different severity of pneumonia (34 moderate, 25 severe, 35 critical) with the hypothesis that ROTEM parameters differed by coronavirus disease 2019 (COVID-19) severity. Shorter than normal clotting time (CT) and higher than normal maximum clot firmness (MCF) in extrinsic rotational thromboelastometry (EXTEM) and fibrinogen rotational thromboelastometry (FIBTEM), shorter than normal EXTEM clot formation time (CFT), and higher than normal α-angle were classified as markers of hypercoagulable state. Increment in the number of patients with ≥2 hypercoagulable parameters, higher EXTEM (<i>P</i> = .0001), FIBTEM MCF (<i>P</i> = .0001) and maximum lysis decrement (<i>P</i> = .002) with increment in disease severity was observed (<i>P</i> = .0001). Significant positive correlations between IL6 and CT EXTEM (<i>P</i> = .003), MCF EXTEM (<i>P</i> = .033), MCF FIBTEM (<i>P</i> = .01), and negative with ML EXTEM (<i>P</i> = .006) were seen. Our findings based on analysis of different disease severity groups confirmed that a hypercoagulable ROTEM pattern characterized by clot formation acceleration, high clot strength, and reduced fibrinolysis was more frequent in advanced disease groups and patients with high IL6. These results supported the need for different thromboprophylaxis approaches for different severity groups.
Failure analysis of fuel-injection pumps from generator sets fueled with Jet A-1. Interim report, Nov 90-Jan 91 (1991)

The U.S. Department of Defense (DOD) has adopted the single fuel for the battlefield concept. Diesel fuel will be replaced by JP-8/Jet A-1 in compression ignition engines, thereby lowering the fuel logistics burden. These fuels have successfully undergone extensive testing in both the laboratory and in field trials. However, increased failure rates are being reported on a number of fuel-sensitive components during Operation Desert Shield in Saudi Arabia. Five failed Stanadyne rotary fuel injection pumps were returned to the Belvoir Fuels and Lubricants Research Facility (BFLRF) at Southwest Research Institute (SwRI) for disassembly and post-failure analysis. Particular attention was given to the possible effects of low-lubricity fuel. The results of the investigation indicate that most of the failures may be attributed to causes other than poor fuel lubricity. The reason for failure of specific components in two of the pumps could not be conclusively determines. However, it is believed that they would not have occurred as a result of short-term operation with Jet A-1.
Advanced signal processing for PLCs: Wavelet-OFDM (2008)

There are today broadband power line modems available in retail stores that are based on either conventional OFDM or on Wavelet-OFDM. However, the comparison of these two multicarrier modulation techniques in the specific context of power line communications has been seldom addressed in the literature. In this paper, OFDM and Wavelet OFDM are compared by focusing on two important aspects: transmission efficiency and spectral leakage. It will be shown that, for the case of the power line channel, Wavelet OFDM offers substantial advantages over conventional or windowed OFDM.
Diagnosis of Canine Lymphoid Neoplasia Using Clonal Rearrangements of Antigen Receptor Genes (2003)

Although the diagnosis of canine leukemia and lymphoma in advanced stages is usually uncomplicated, some presentations of the disease can be a diagnostic challenge. In certain situations, lymphoma and leukemia can be difficult to distinguish from a benign reactive proliferation of lymphocytes. Because clonality is the hallmark of malignancy, we have developed an assay that uses the polymerase chain reaction to amplify the variable regions of immunoglobulin genes and T-cell receptor genes to detect the presence of a clonal lymphocyte population. The assay detected clonally rearranged antigen receptor genes in 91% of the 77 dogs with lymphoid malignancy. Of the 24 dogs tested, that were either healthy or had clearly defined conditions not related to lymphoid malignancy, a clonally rearranged antigen receptor gene was found in one (a dog with Ehrlichia canis infection). Gene rearrangement was appropriate for the immunophenotype (immunoglobulin gene rearrangement in B-cell leukemias and T-cell receptor gene rearrangement in T-cell leukemias). Dilution analysis showed that the clonal rearrangement could be detected when 0.1-10% of the DNA was derived from neoplastic cells, depending on the source tissue. Potential applications of this assay include the diagnosis of lymphoma or leukemia in biopsy samples, cavity fluids, fine needle aspirates, bone marrow and peripheral blood; the determination of lineage (B or T cell); staging of lymphoma; and detection of residual disease after chemotherapy.
Introduction (2010)

Among travel writers, Jane Dolinger occupies a unique position—owing as much to what has been forgotten about her as to what hazy recollection those who have heard of her still retain. With almost a dozen books and more than a thousand articles to her credit spanning close to forty years, yet with none of them in print, one might conclude that time has delivered its verdict, that she was simply a passing fancy in her own day and should now slip quietly into the fading picture of the past, having no lasting relevance. But if we take the time to root out and examine that enormous literary legacy, and to look into the extraordinary life that produced it, her justification for being remembered—indeed, resurrected—strikes us as a beautiful revelation. And therein lies the challenge. That Jane is worthy of a serious retrospective biography can be proven only by reintroducing her to the public in just such a biography.KeywordsSexual MoresTravel WriterNorth American LiteratureGood TravelTravel LiteratureThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
A semi-synthetic analog of the cembranoid sarcophine (2003)

The title molecule, 2(R)-[(1E,3E,7S,8S,11E,13R)-13-hydroxy-4,8,12-trimethyl-7,8-epoxycyclotetradeca-1,3,11-trien-1-yl]propane-1,2-diol, C(20)H(32)O(4), is a semi-synthetic analog of sarcophine, the natural cembranoid of marine origin, isolated from the soft coral Sarcophyton glaucum. The conformation of the 14-membered ring differs substantially from that of sarcophine. The two OH groups of the propane-1,2-diol moiety form an unusual weak intramolecular hydrogen bond with an O...O distance of 2.788 (2) A, and the molecules are linked into double chains by intermolecular hydrogen bonds with O...O distances of 2.772 (2) and 2.849 (2) A.
GaAs/Al x O y photonic bandgap material fabrication and characterization (1999)

A relatively simple technique for fabrication of GaAs-based quasi-3D photonic crystals has been investigated. Selective impurity-induced layer disordering and wet oxidation techniques are utilized. The feasibility of this technique is successfully demonstrated and a photonic bandgap material with its bandgap around 1.18 micrometers has been fabricated. The electro-optic coefficients have been measured for the first time in such a medium. The process is reproducible an lends itself to integration with other optoelectronic and electronic devices on the same substrate, which might be required for pumping, electrical injection or other functions.