gebhart/patrepeval huggingface dataset:
The second solution of the Hermite equation and the monomiality formalism (2013)

The Hermite polynomials can be defined through a second order differential equation with non constant coefficients, admitting two solutions one of which of non polynomial nature. The properties of this solution are studied here using an algebraic formalism, employing the techniques developed within the framework of the monomiality principle.
Smart Data Agent for Preserving Location Privacy (2020)

A novel agent model is proposed that preserves the privacy of location information by using smart data i.e., data that protect themselves in a manner appropriate to the needs of the user. The model protects personal data by wrapping in a “cloak of intelligence”. This requires development of an intelligent agent that acts as the user's virtual proxy in cyberspace controlling the release of the user's information in accordance with the its preferences, context of information and/or nature of situation. The presented work focuses on developing a location data agent for smartphone users. Many applications request access to the user's location data in order to provide their services, but some may take advantage of this opportunity to continuously record location data even when they are not being used. This continuous tracking of the user's location can reveal extensive personal information. The aim of this work is to develop a neural network based intelligent agent that learns the user's privacy preferences and estimates the preferred privacy levels for future interactions. Agent in the proposed model behaves as an advanced data location manager and interacts with the apps instead of letting them directly access the location data. Apart from deciding the amount of distortion, the agent also works to prevent remove spatial and temporal correlations by adding perturbations to actual access history so as to prevent a third party from making an kind of prediction on personal data.
Cool white, persistent room-temperature phosphorescence in carbon dots embedded in a silica gel matrix (2017)

Cool white room temperature phosphorescence emission of carbon dots embedded in a silica gel matrix.
Rare Earth Doped Optical Fibers with Multi-section Core (2019)

The gain bandwidth of a single-mode fiber is limited by the atomic transitions of one rare earth gain element. Here we overcome this long-standing challenge by designing a new single-mode fiber with multi-section core, where each section is doped with different gain element. We theoretically propose and experimentally demonstrate that this configuration provides a gain bandwidth well beyond the capability of conventional design, whereas the inclusion of multiple sections does not compromise single-mode operation or the quality of the transverse modal profile. This new fiber will be beneficial in realizing all fiber laser systems with few-cycle pulse duration or octave tunability.
Assaying Macrophage Chemotaxis Using Fluid‐Walled Microfluidics (2022)

Abstract While many tools exist to study immune‐cell chemotaxis in vitro, current methods often lack desirable features. Using fluid‐walled microfluidics, circuits are built around primary murine macrophages deposited in pre‐defined patterns on Petri dishes or microplates. Concentration gradients of complement component 5a (C5a) are established in flow‐free or flowing environments, cell migration imaged, and cell directionality and velocity correlated to calculated local C5a concentrations. In flow‐free circuits built around patterned macrophages, only cells nearest the C5a source migrate regardless of local attractant concentration. Conversely, in flowing circuits free from intercellular signaling and attractant degradation, only cells distant from the source migrate. In both systems, cells respond to lower C5a concentrations than previously reported (≈0.1 pM). Finally, macrophages follow instantly‐shifted gradients better than slowly‐shifting ones, suggesting that migration depends on both spatial and temporal responses to concentration.
Facilitation of DDD Follow‐Up Using the DDT Mode (1992)

To facilitate follow-up, modern dual chamber pacemakers provide a variety of diagnostic features like ECG interpretation channels and intracardiac electrograms. For evaluation of the sensing performance at rest and during exercise, for assessment of the presence of crosstalk, and for measurement of the retrograde conduction time, dual chamber triggered pacing, particularly the DDT mode, can be used alternatively or additionally in pacemakers equipped with this option. In contrast to ECG interpretation channels, ECG documentation is not required for evaluation of the sensing performance, because the triggered pulses serving as markers for sense events can also be seen on the monitor. Selection of the DDT mode not only as temporary but also as permanent program serves to facilitate pacemaker ECG interpretation for exercise tests and Holter recordings as well.
Missing Data Estimation in Mobile Sensing Environments (2018)

Mobile sensing techniques have been increasingly deployed in many Internet of Things-based applications because of their cost efficiency, wide coverage, and flexibility. However, these techniques are unreliable in many situations due to noise of different kinds, loss of communication, or insufficient energy. As such, datasets created from mobile sensing scenarios are likely to contain large amount of missing data, which makes further data analysis difficult, inaccurate, or even impossible. We find that the existing estimation models and techniques developed for static sensing do not work well in the mobile sensing scenarios. To address the problem, we propose a spatio-temporal method, which is specifically designed for answering queries in such applications. Experiments on a real-world, incomplete mobile sensing dataset show that the proposed method outperforms the state-of-the-art noticeably in terms of estimation errors. More importantly, the proposed model is tolerant to datasets with extremely high-missing data rates. Training with the proposed model is also efficient, which makes it suitable for deployment on computationally constrained devices and platforms that need to process massive amounts of data in real time.
Contextual Two-Stage U-Nets for Robust Pulmonary Lobe Segmentation in CT Scans of COVID-19 and COPD Patients (2020)

Pulmonary lobe segmentation in computed tomography scans is essential for regional assessment of pulmonary diseases. Recent works based on convolution neural networks have achieved good performance for this task. However, they are still limited in capturing structured relationships due to the nature of convolution. The shape of the pulmonary lobes affect each other and their borders relate to the appearance of other structures, such as vessels, airways, and the pleural wall. We argue that such structural relationships play a critical role in the accurate delineation of pulmonary lobes when the lungs are affected by diseases such as COVID-19 or COPD. In this paper, we propose a relational approach (RTSU-Net) that leverages structured relationships by introducing a novel non-local neural network module. The proposed module learns both visual and geometric relationships among all convolution features to produce self-attention weights. With a limited amount of training data available from COVID-19 subjects, we initially train and validate RTSU-Net on a cohort of 5000 subjects from the COPDGene study (4000 for training and 1000 for evaluation). Using models pre-trained on COPDGene, we apply transfer learning to retrain and evaluate RTSU-Net on 470 COVID-19 suspects (370 for retraining and 100 for evaluation). Experimental results show that RTSU-Net outperforms three baselines and performs robustly on cases with severe lung infection due to COVID-19.
Phase-only modulation with a twisted nematic liquid crystal display by means of equi-azimuth polarization states (2006)

The capability of a twisted nematic liquid crystal display to generate a set of equi-azimuth polarization states is used to achieve a phase-only modulation regime. For this purpose, a liquid crystal display followed by a quarter-wave plate is launched between two polarizers. Theoretical support is provided by means of the Jones matrix calculus and the Poincaré sphere representation. Laboratory results for a commercial liquid crystal display are presented. A phase modulation deep of 270 masculine is obtained at 514 nm with a residual intensity variation which is lower than 2.5 %.
The transcriptional co‐activator multiprotein bridging factor 1 from the fungal insect pathogen, B eauveria bassiana , mediates regulation of hyphal morphogenesis, stress tolerance and virulence (2014)

Multiprotein bridging factors (MBFs) are evolutionarily highly conserved cofactors that link TATA-binding protein and the associated basal transcription machinery to transcription factors. The filamentous fungus, Beauveria bassiana, has a multipotential lifestyle capable of growing as a saprophyte, plant endophyte and insect pathogen. Deletion of the single B. bassiana MBF homologue (BbMBF1) affected fungal growth and hyphal morphogenesis, stress response and virulence. Compared with wild type, the ΔBbMBF1 strain displayed increased sensitivity to UV-irradiation and to oxidative, osmotic and heat stress, and decreased virulence in both topical and intrahaemocoel injection bioassays using the greater wax moth, Galleria mellonella larvae. Although only minor radial growth effects were seen for the ΔBbMBF1 strain, aberrant hyphal morphogenesis was observed, which could be rescued by growth in rich broth media. Transcriptional analysis during stress response showed altered gene expression in ΔBbMBF1 during growth under osmotic, oxidative and thermal stress conditions. Genome-wide expression analyses during growth under unstressed and thermal stress conditions revealed global gene expression changes and a set of putative targets for MBF1 mediated gene expression control. Our data indicate that BbMBF1 acts as a key regulatory cofactor controlling stress responses and virulence and that MBF1 dependent and independent pathways control proper hyphal morphogenesis.
Flat panel display materials III : symposium held March 31-April 3, 1997, San Francisco, California, U.S.A. (1997)

Flat-panel displays are rapidly becoming the displays of choice for a variety of information-displaying applications ranging from laptop computers to automobile and cockpit read-out devices. Passive matrix liquid-crystal displays, and more recently, active matrix liquid-crystal displays (AMLCDs) have led the way in the display revolution. In addition, emissive displays based on field emission, electroluminescence, and plasma charge are attracting considerable interest. Ultimately, however, the advancement in flat-panel display applications will be driven by cost and performance advantages which are dependent on the advancement of materials and process technologies used to fabricate the displays. This book focuses on the materials and large-area processes used by the various display technologies, both emissive and nonemissive, including liquid-crystal, electroluminescent, plasma, field-emission, and micromechanical displays. Topics include: AMLCD materials and processes; thin-film transistors for AMLCDs; emissive displays and materials and phosphor materials.
A High-Resolution Esophageal Electrocardiogram for Monitoring Atrial Activity in the Hypothermic Potassium-Arrested Heart (1997)

Atrial electrical activities during hypothermic, K(+)-induced cardioplegic arrest correlate with an increased incidence of postoperative supraventricular dysrhythmias in coronary artery bypass graft patients. Surface electrocardiogram (ECG) (S-ECG) may be insufficiently sensitive to detect such activity intraoperatively, and invasive methods are impractical and traumatic. From induction of anesthesia until the end of surgery, esophageal ECG signals were detected with a new bipolar esophageal probe and a new high-resolution preamplifier (frequency range 0.01-2000 Hz). The S-ECG and the esophageal ECG (E-ECG) were evaluated independently in 18 patients. Eight of 18 patients presented during cardioplegic arrest a mean of 483 +/- 119 high-amplitude, biphasic P components (mean amplitude 0.7 +/- 0.1 mV, range 0.35-1.15 mV) per patient (mean 36 +/- 6 [5-59] potentials/min) similar to those coinciding with the surface ECG P-waves during sinus rhythm. Six of these eight patients presented a mean of 29 +/- 11 low atrial activities (mean amplitude 0.14 +/- 0.023 mV; range 0.1-0.25 mV) per patient (mean 8.4 +/- 5.6 [2.3-48] potentials/min) in the E-ECG. In the S-ECG, one patient of these eight presented 26 P waves during cardioplegic arrest simultaneously with activities in the E-ECG. During the first 5 days, seven of eight (88%) patients with atrial activities in the E-ECG versus 3 of 10 (30%) patients without atrial activities developed supraventricular tachyarrhythmias postoperatively (P < 0.05). This new high-resolution E-ECG device detected in a beat-to-beat technique more atrial activity during cardioplegic arrest than a S-ECG and offered the advantages of artifact exclusion and better prediction of postoperative supraventricular dysrhythmias.
The NRL Ka-band CHI wiggler ubitron amplifier (2002)

Summary form only given. A 35 GHz CHI (Coaxial Hybrid Ion) wiggler ubitron amplifier experiment is under construction at the Naval Research Laboratory. The purpose of the experiment is to study the CHI wiggler configuration's potential of generating high wiggler magnetic fields at short periods with excellent beam focusing and transport properties. The nominal design parameters of the experiment are a center frequency of 35 GHz, wiggler period of 7.5 mm, and beam voltage of approximately 150 kV. Calculations have shown an intrinsic (untapered) efficiency of /spl ap/7% when operating at 6.3 kG axial field (wiggler field, B/sub w//spl ap/1270 G). The calculated gain was 36 dB, saturating at a distance of 46 cm. These parameters yield an instantaneous amplifier bandwidth of /spl ap/25%. There appears to be room for further improvement in efficiency, a matter that will be scrutinized more closely in the final design. Components of the experiment include a modified SLAC klystron electron gun (its beam converted from solid to annular), and the input and output RF couplers. Extensive work was performed on the design of the annular beam gun. This includes different techniques used in the development of the electron beam focusing coils, since the beam is immersed in a magnetic field from the cathode onward. In addition to the design of the components themselves, their placement in relation to each other in the gun-wiggler region is critical due to space limitation and beam transport issues. The techniques used for beam focusing were also used to study the transport of the beam from the gun output to the wiggler input.
Surface chemistry and surface electronic properties of ZnO single crystals and nanorods (2009)

The surface chemistry of ZnO single crystals of (0001) and (101¯0) orientations and ZnO nanorods was studied using x-ray and ultraviolet photoelectron spectroscopies. Air drying and UV-ozone preparations were studied in particular as chemical treatments that could be applied to poly(3-hexylthiophene) (P3HT)-ZnO solar cells to enhance performance. The UV-ozone treatment showed negligible effect by photoelectron spectroscopy on the ZnO single crystal surfaces, but brought about electronic shifts consistent with increased upward band bending by ∼0.25eV on the ZnO nanorod surface. Modest interface dipoles of ∼0.15 and ∼0.25eV were measured between P3HT and the (101¯0) and (0001) single crystal orientations, respectively, with the dipole moment pointing from ZnO to the P3HT layer. The sol-gel films showed evidence of forming a small interface dipole in the opposite direction, which illustrates the difference in surface chemistry between the solution-grown ZnO and the ZnO single crystals.
Multilayer printing of embroidered RF circuits on polymer composites (2011)

This paper presents embroidered conductive fibers (E-fiber) on polymer composites for conformal and light-weight RF circuits and antennas. A polydimethylsiloxane, namely PDMS, is adapted. Our earlier studies showed that it had a remarkable RF performance with a tangent loss of less 0.02 at RF frequencies. In this paper, an embroidered E-fiber microstrip line sample was fabricated with conductive fibers on a polymer substrate, and its RF characteristics were measured. The S-parameters were compared with those of copper microstrip lines. Measurements indicated that the insertion loss of the E-fiber microstrip line was only 0.04dB/cm higher than that of the copper. A multilayer microstrip line using similar fabrication techniques was also printed and measurements were conducted. All results clearly demonstrate the feasibility of the proposed embroidered conductive fiber technique for flexible and conformal RF applications.
Cytokine and Antibody Responses to Plasmodium falciparum in Naïve Individuals during a First Malaria Episode: Effect of Age and Malaria Exposure (2013)

Age- and exposure-dependent immune responses during a malaria episode may be key to understanding the role of these factors in the acquisition of immunity to malaria. Plasma/serum samples collected from naïve Mozambican children (n=48), European adults (naïve travelers, n=22; expatriates with few prior malaria exposures, n=15) and Mozambican adults with long-life malaria exposure (n=99) during and after a malaria episode were analyzed for IgG against merozoite proteins by Luminex and against infected erythrocytes by flow cytometry. Cytokines and chemokines were analyzed in plasmas/sera by suspension array technology. No differences were detected between children and adults with a primary infection, with the exception of higher IgG levels against 3D7 MSP-1(42) (P=0.030) and a P. falciparum isolate (P=0.002), as well as higher IL-12 (P=0.020) in children compared to other groups. Compared to malaria-exposed adults, children, travelers and expatriates had higher concentrations of IFN-γ (P ≤ 0.0090), IL-2 (P ≤ 0.0379) and IL-8 (P ≤ 0.0233). Children also had higher IL-12 (P=0.0001), IL-4 (P=0.003), IL-1β (P=0.024) and TNF (P=0.006) levels compared to malaria-exposed adults. Although IL-12 was elevated in children, overall the data do not support a role of age in immune responses to a first malaria episode. A T(H)1/pro-inflammatory response was the hallmark of non-immune subjects.
Fluorescence video dermatoscope (2008)

This paper describes a fluorescence video dermatoscope intended for the diagnosis of skin diseases. It is a compact hand-held device with a built-in LED illuminator and a color RGB television camera with progressive scanning and digital output. The video signals are recorded and processed by computer. The observation is carried out in the light of intrinsic or secondary fluorescence, as well as in ordinary white light. The device makes it possible to quantitatively estimate the brightness and color features of the patient’s skin. Examples are given of the use of the device in medical practice.
Venetoclax Combined With FLAG-IDA Induction and Consolidation in Newly Diagnosed and Relapsed or Refractory Acute Myeloid Leukemia (2021)

Fludarabine, cytarabine, granulocyte colony-stimulating factor, and idarubicin + venetoclax represents an effective intensive treatment regimen in ND-AML and R/R-AML patients, associated with deep remissions and a high rate of transition to successful transplantation.
28/38-GHz dual-band millimeter wave SIW array antenna with EBG structures for 5G applications (2015)

The design of linearly polarized dual-band substrate integrated waveguide (SIW) antenna/array operating at Ka-band is proposed. The single antenna element consists of a SIW cavity with two longitudinal slots engraved in one of the conducting planes. The longer and shorter slots are resonating at 28 GHz and 38 GHz, respectively. Only the simulated results are presented. All simulations have been carried out using industry-standard software, CST Microwave Studio. For single antenna element, an impedance bandwidth (S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">11</sub> <; -10 dB) of 0.45 GHz (1.60 %) and 2.20 GHz (5.8 %) is achieved with the maximum gain of 5.2 dBi and 5.9 dBi at 28 GHz and 38 GHz, respectively. To achieve high gain, a horizontally polarized linear array of four elements (1 × 4) is designed. For the antenna array, a microstrip lines feed network is designed using 3-dB wilkinson power divider. At 28 GHz and 38 GHz, the impedance bandwidth is 0.32 GHz (1.14 %) and 1.9 GHz (5%) having maximum gain of 11.9 dBi and 11.2 dBi, respectively. A low loss/cost substrate, RT/Duroid 5880 is used in the proposed designs.
Neutral Ligands with Exceptional Donor Ability for Palladium‐Catalyzed Alkene Hydrogenation (2007)

With four site: Catalytic olefin hydrogenation is observed with palladium complexes when the N-heterocyclic carbene ligand is changed from the normal C2- to the unusual C4-bonding mode (see scheme). In a cis coordinating framework, the electron density at the metal center is substantially increased as a result of the exceptionally strong donor ability of C4-bound carbenes. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z702199_s.pdf or from the author. 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.
Pancreatic islet isografts, allografts, and xenografts: comparison of morphology and function. (1976)

Neonatal rat pancreatic islets were transplanted intraperitoneally into adult streptozotocin-diabetic rats and mice. Isologous pancreatic islet recipients (12 of 12) showed consistent and permanent reconstitution of normoglycemia and normal weight gain as well as readjustment to normal of intake of water, urine volume, and glucose excretion for greater than 10 months when compared to age-matched normal (ten) and diabetic (20) controls. Revascularized isologous islet grafts were found to be adherent to both visceral and parietal peritoneum. Pancreatic islet allografts (ten) and allografts and xenografts did not appear to differ markedly; both were characterized by dense round-cell infiltration within 5 days after transplantation.
Monomer Composition and Bond Strength of Light-cured 4-META Opaque Resin (1990)

A light-cured opaque resin was prepared with 4-(2-methacryloxyethoxycarbonyl) phthalic anhydride (4-META), bifunctional methacrylates, and titanium dioxide (TiO2). The relation between monomer composition and bond strength was examined with seven methacrylate monomers. Methyl methacrylate (MMA) was useful as a solvent of 4-META. However, it was not sufficiently cured by photo-initiator. The bond strength of a triethyleneglycol dimethacrylate (TEGDMA)-based composition was superior to other monomer-based compositions after repeated thermocycles. 1,6-bis(methacryloxy-2-ethoxycarbonyl-amino)-2,4,4-trimethylhex ane (UDMA) effectively provided viscosity to the composition. The prepared opaque resin consisted of 4-META/MMA-TEGDMA primer, TEGDMA-UDMA-based monomer, and titanium dioxide. This opaque resin bonded strongly to alumina-blasted cobalt-chromium alloy. The light-cured 4-META opaque resin may be useful for bonding prosthodontic composite to metal frameworks.