gebhart/patrepeval huggingface dataset:
Broadband Planar Antennas: Design and Applications (2006)

Foreword. Preface. Acknowledgements. 1 Planar Radiators. 1.1 Introduction. 1.2 Bandwidth Definitions. 1.2.1 Impedance Bandwidth. 1.2.2 Pattern Bandwidth. 1.2.3 Polarization or Axial-ratio Bandwidth. 1.2.4 Summary. 1.3 Planar Antennas. 1.3.1 Suspended Plate Antennas. 1.3.2 Bent Plate Antennas. 1.4 Overview of this Book. References. 2 Broadband Microstrip Patch Antennas. 2.1 Introduction. 2.2 Important Features of Microstrip Patch Antennas. 2.2.1 Patch Shapes. 2.2.2 Substrates. 2.2.3 Feeding Structures. 2.2.4 Example: Rectangular Microstrip Patch Antennas. 2.3 Broadband Techniques. 2.3.1 Lowering the Q. 2.3.2 Using an Impedance Matching Network. 2.3.3 Case Study: Microstrip Patch Antenna with Impedance Matching Stub. 2.3.4 Introducing Multiple Resonances. 2.3.5 Case Study: Microstrip Patch Antenna with Stacked Elements. References. 3 Broadband Suspended Plate Antennas. 3.1 Introduction. 3.2 Techniques to Broaden Impedance Bandwidth. 3.2.1 Capacitive Load. 3.2.2 Slotted Plates. 3.2.3 Case Study: SPA with an -shaped Slot. 3.2.4 Electromagnetic Coupling. 3.2.5 Nonplanar Plates. 3.2.6 Vertical Feed Sheet. 3.3 Techniques to Enhance Radiation Performance. 3.3.1 Radiation Characteristics of SPAs. 3.3.2 SPA with Dual Feed Probes. 3.3.3 Case Study: Center-concaved SPA with Dual Feed Probes. 3.3.4 SPA with Half-wavelength Probe-fed Strip. 3.3.5 SPA with Probe-fed Center Slot. 3.3.6 Case Study: Center-fed SPA with Double L-shaped Probes. 3.3.7 SPA with Slots and Shorting Strips. 3.4 Arrays with Suspended Plate Elements. 3.4.1 Mutual Coupling between Two Suspended Plate Elements. 3.4.2 Reduced-size Array above Double-tiered Ground Plane. References. 4 Planar Inverted-L/F Antennas. 4.1 Introduction. 4.2 The Inverted-L/F Antenna. 4.3 Broadband Planar Inverted-F/L Antenna. 4.3.1 Planar Inverted-F Antenna. 4.3.2 Planar Inverted-L Antenna. 4.4 Case Studies. 4.4.1 Handset Antennas. 4.4.2 Laptop Computer Antennas. References. 5 Planar Monopole Antennas and Ultra-wideband Applications. 5.1 Introduction. 5.2 Planar Monopole Antenna. 5.2.1 Planar Bi-conical Structure. 5.2.2 Planar Monopoles. 5.2.3 Roll Monopoles. 5.2.4 EMC Feeding Methods. 5.3 Planar Antennas for UWB Applications. 5.3.1 Ultra-wideband Technology. 5.3.2 Considerations for UWB Antennas and Source Pulses. 5.3.3 Planar UWB Antenna and Assessment. 5.4 Case Studies. 5.4.1 Planar UWB Antenna Printed on a PCB. 5.4.2 Planar UWB Antenna Embedded into a Laptop Computer. 5.4.3 Planar Directional UWB Antenna. References. Index
Mechanical and Superhydrophobic Stabilities of Two-Scale Surfacial Structure of Lotus Leaves (2007)

To understand why lotus leaf surfaces have a two-scale structure, we explore in this paper two stability mechanisms. One is the stability of the Cassie-Baxter wetting mode that generates the superhydrophobicity. A recent quantitative study (Zheng et al., Langmuir 2005, 21, 12207) showed that the larger the slenderness ratio of the surface structures was, the more stable the Cassie-Baxter wetting mode would be. On the other hand, it is well-known that more slender surface structures can only sustain lower critical water pressures for structure buckling, or Euler instability, while in the natural environments, the water pressure impacting on the lotus surface can reach a fairly high value (105 Pa in a heavy rain). Our analysis reveals that the two-scale structure of the lotus leaf surfaces is necessary for keeping both the structure and the superhydrophobicity stable. Furthermore, we find that the water-air interfacial tension makes the slender surface structure more instable and the two-scale structure a necessity.
Calidad de la atención y su Satisfacción. Servicio de Urgencias Médicas. 2009 (2011)

Se presentó un estudio, en el período de enero a diciembre del 2009, en el Hospital Pediátrico "Octavio de la Concepción de la Pedraja" de Holguín con el objetivo de evaluar la satisfacción de la calidad del proceso de urgencia. Para corroborar lo anterior se utilizaron diferentes métodos como, la observación, consulta a expertos, comparación, encuesta, histórico-lógico, análisis¿síntesis e hipotético¿deductivo. Se apreció que la mayoría de los pacientes que acuden al cuerpo de guardia no tienen criterio de urgencia y pueden ser atendidos en el nivel de atención primario, y existen dificultades estructurales y organizativas que impiden la adecuada atención. Se arribó a la conclusión de que la población realiza un mal uso del servicio de urgencias por falta de educación para la salud, no obstante a ello muestran un alto nivel de satisfacción y la mayoría de los encuestados manifiestan su preferencia por nuestra institución.
Abstract 5328: Expansion of CD11b+CD33lowCD15high immunosuppressive myeloid cell population in patients with bladder carcinoma (2010)

Abstract Recent studies highlighted the immunoregulatory role of CD11b myeloid cells in cancer-associated immune non-responsiveness. Increased presence of myeloid-derived suppressor cells (MDSC) is one of the major factors responsible for immune suppression in tumor hosts. Here we describe the expanded CD11b myeloid cell subset in peripheral blood obtained from patients with bladder cancer. Based on expression of CD33 and CD15 myeloid cells markers, the circulating CD11b-positive cells in patients with bladder cancer could be subdivided into two major subpopulations: CD33lowCD15high and CD33highCD15low. First subpopulation (CD11b+CD33lowCD15high cells) has granulocyte-type morphology, express G-CSF receptor (CD114) and secrete elevated amounts of pro-inflammatory cytokines and chemokines such as G-CSF, MCP-1 MIP-1alpha, MIP-1beta. Second major myeloid cell subset from cancer patients (CD11b+CD33high CD15lowcells) displays a monocyte-type cell morphology and co-express CD14, M-CSF receptor (CD115), CCR2 and HLA-DR. We show here that proportion of granulocytic CD33lowCD15high cells is highly elevated in cancer patients as compared to healthy individuals. Patients with bladder cancer but not healthy volunteers show weak T cell proliferative response after in vitro stimulation. We demonstrate that granulocyte-type CD33lowCD15high cell population is involved in T cell hyporesponsiveness, since specific depletion of this cell subset restored the T cell proliferation. Obtained results suggest that fraction of PBMC in patients with bladder cancer patients contains markedly elevated proportion of CD11b+CD33lowCD15high granulocyte-type myeloid cell population which contributes to cancer-associated inflammation and tumor-induced immune suppression. Note: This abstract was not presented at the AACR 101st Annual Meeting 2010 because the presenter was unable to attend. Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 5328.
Long-range multi-carrier acoustic communication in deep water using a towed horizontal array (2012)

During a recent long-range acoustic communication experiment carried out in deep water, multi-carrier Orthogonal Frequency Division Multiplexing (OFDM) communication signals were transmitted with a 50 Hz bandwidth (225–275 Hz) at various source-receiver ranges from 100 to 700 km. The experiment consisted of two mobile components: (1) a source towed slowly at a speed of 2–3 knots at ∼75 m depth and (2) a horizontal line array towed at 3.5 knots at a depth of ∼200 m. In addition to beamforming, an interleaver gain is exploited to compensate for low signal-to-noise ratio at the expense of data rate while providing diversity in the frequency domain. Error-free performance is shown at effective data rates of 15 and 7.5 bits/s at ranges of 550 km and 700 km, respectively, by combining interleaved repetitions with low-density parity-check coding after beamforming, demonstrating the feasibility of multi-carrier OFDM communications in deep water using a towed horizontal array.
Fractal aspects of speech signals: dimension and interpolation (1991)

The nonlinear dynamics of air flow during speech production may often result in some small or large degree of turbulence. The author quantifies the geometry of speech turbulence, as reflected in the fragmentation of the time signal, by using fractal models. He describes an efficient algorithm for estimating the short-time fractal dimension of speech segmentation and sound classification. He also develops a method for fractal speech interpolation which can be used to synthesize controlled amounts of turbulence in speech or to increase its sampling rate by preserving not its bandwidth (as is classically done) but rather its fractal dimension.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Oxidation of Low Density Lipoproteins Greatly Enhances Their Association with Lipoprotein Lipase Anchored to Endothelial Cell Matrix (1996)

Native and oxidized low density lipoprotein retention within arterial wall endothelial cell matrix (ECM) is an early event in the pathogenesis of atherosclerosis. Previously we showed lipoprotein lipase (LPL) addition to ECM enhanced the retention of apoB-containing lipoproteins. In the present studies we examined whether the oxidation of low density lipoprotein (LDL) increases its retention by LPL-containing ECM. Except where noted, 125I-labeled moderately oxidized LDL (ModOxLDL) was prepared by long term storage of 125I-LDL. Without LPL, 125I-ModOxLDL matrix binding was low and nonsaturable. LPL preanchored to ECM resulted in 125I-ModOxLDL binding that was saturable and 20-fold greater than in the absence of LPL, with an association constant equal to 2.6 nM. Copper-oxidized LDL (Cu-OxLDL) was able to compete with 125I-ModOxLDL, whereas a 60-fold native LDL excess had no effect. Reconstituted apolipoprotein B from Cu-OxLDL also reduced 125I-ModOxLDL to LPL, whereas liposomes derived from the lipid extract of Cu-OxLDL had no effect on binding. These data suggest that the increased binding of oxidized LDL to LPL-ECM may be due to the exposure of novel apoB binding sites and not an oxidized lipid moiety. 125I-ModOxLDL binding was also not affected by either preincubation with a 300-fold molar excess of apoE-poor HDL or an 340-fold molar excess of Cu-Ox-HDL. In contrast, a 4-fold apoE-rich HDL excess (based on protein) totally inhibited 125I-ModOxLDL matrix retention. Positively charged peptides of polyarginine mimicked the effect of apoE-rich HDL in reducing the 125I-ModOxLDL retention; however, polylysine had no effect. We postulate that the oxidation of LDL may be a mechanism that enhances LDL retention by the ECM-bound LPL and that the protective effects of apoE-containing HDL may in part be due to its ability to block the retention of oxidized LDL in vivo.
Prednisolone Pharmacokinetics and Protein-Binding in Patients with Portosystemic Shunt (1983)

The pharmacokinetics and protein-binding of orally administered prednisolone have been studied in seven patients with chronic liver disease and portosystemic shunts. The peak prednisolone serum concentration and the time of peak prednisolone concentration were similar to those found in normal subjects, indicating that there is no clinically significant first-pass metabolism of prednisolone. The elimination half-time and the extent of bioavailability of total prednisolone tended to be lower in the patients, and the extent of free, unbound prednisolone higher, but the differences were not statistically significant. The patients had a significantly lower serum protein-binding of prednisolone than the controls. Despite the decreased protein-binding in the patients, however, the results indicate that changes occur in the pharmacokinetics of prednisolone that tend to reduce the bioavailability of free, biologically active prednisolone towards that seen in healthy subjects. Reduction of the prednisolone dose is therefore not indicated in patients with portosystemic shunt and chronic liver disease, even in the presence of hypoalbuminemia.
Dual roles of the retinoblastoma protein in cell cycle regulation and neuron differentiation. (1994)

To assess the functions of the retinoblastoma protein (RB) during normal development, we have analyzed mouse embryos that lack a functional copy of the retinoblastoma gene (genotype: Rb-1 delta 20/Rb-1 delta 20). Our findings demonstrate that RB plays an important role in the regulation of the neuronal cell cycle. In mutant embryos, dividing cells are found well outside of the normal neurogenic regions in both the central and peripheral nervous systems. In addition to abnormal cell cycle regulation, however, the mutant embryos show two less expected phenotypes. First, many of the ectopically dividing cells die by apoptosis shortly after their entrance into S phase. In sensory ganglia, most nerve cells die by this process, beginning at about the same time as normal target-related neuronal death. Second, although the expression of certain differentiation markers such as N-CAM and Brn-3.0 appears to be near normal, nerve cells, especially in sensory ganglia, do not mature properly. Their morphology is stunted and expression of neuronal beta II tubulin is greatly reduced. Preferential reduction in the expression of TrkA, TrkB, and the low-affinity neurotrophin receptor p75LNGFR may be relevant to neuronal cell death and lack of neuronal differentiation seen in the mutant embryos. Primary cultures of dorsal root and trigeminal ganglion cells from later stage mutant embryos reveal a decrease in neuronal cell survival and in neurite outgrowth even in the presence of the appropriate neurotrophins. Taken together, these results suggest that the p110RB protein not only regulates progression through the cell cycle but is also important for cell survival and differentiation.
Cationic oligomerization of isoprene and structure of its oligomers (1991)

Abstract The results obtained in a study of isoprene cationic oligomerization in the presence of some oxyacids (H 2 SO 4 , CH 3 SO 3 H, Nafion ® H) are reported. Oligomers up to pentamers are obtained which were examined through gas chromatography/mass spectrometry analysis either of the reaction products or of the hydrogenated products. The structure of the dimer fraction was investigated and revealed the prevalent presence of α‐pinene and p‐cymene together with different cyclic unsaturated hydrocarbons. Only small quantities of linear dimers were found. Possible reaction mechanisms are presented.
Monomode Interband Cascade Lasers at 5.2 $\mu{\rm m}$ for Nitric Oxide Sensing (2014)

We demonstrate application-grade monomode distributed feedback (DFB) laser devices with emission wavelength around 5.2 μm; suitable for nitric oxide sensing. The devices are based on interband cascade laser material that enables continuous wave operation in the midinfrared spectral region when mounted on a standard thermoelectrically cooled TO-style header. With etched vertical sidewall DFB gratings as wavelength selective elements, signal to noise ratios around 30 dB and typical tuning ranges greater than 12 nm were achieved, making the devices suitable for applications based on tunable laser absorption spectroscopy.
A new anode material for high performance lithium-ion batteries: V<sub>2</sub>(PO<sub>4</sub>)O/C (2016)

Studies were conducted on V<sub>2</sub>(PO<sub>4</sub>)O/C, a promising new anode material for lithium ion batteries, with excellent electrochemical properties.
Digital correlation system for nondestructive testing of thermally stressed ceramics (1995)

We report on the development of an automated digital speckle system for use in the nondestructive testing of thermally stressed ceramics. The system is based on a laser-speckle technique known as speckle-pattern correlation and uses a CCD camera and a microcomputer to allow real-time testing of the ceramic samples. This arrangement makes use of decorrelation in the laser speckle image structure, which results from microstructural changes in the surface topology, to probe for surface defects on the thermally stressed materials. Acorrelation tracking procedure was used to allow corrections to be made to the correlation signal arising from bulk motion of the sample. Results are presented that demonstrate the capability of the correlator for distinguishing between ceramic components on the basis of their response to thermal loading.
Amino acid sequences of α-helical segments from <i>S</i>-carboxymethylkerateine-A. Complete sequence of a type-II segment (1978)

1. The helical fragments obtained by partial chymotryptic digestion of S-carboxymethylkeratine-A, the low-sulphur fraction from wool, were fractionated into type-I and type-II helical segments in aqueous urea under conditions limiting carbamoylation. 2. The amino acid sequence of a 109-residue type-II segment was completed by using the sequenator. 3. When the data were incorporated into a helical model of 3.6 residues per turn the hydrophobic residues generated a band aligned at a slight angle to the helical axis. This result is in accord with the postulated coiled-coil structure of the crystalline regions of alpha-keratin.
Subgroup B and F Fiber Chimeras Eliminate Normal Adenovirus Type 5 Vector Transduction In Vitro and In Vivo (2002)

Altering adenovirus vector (Ad vector) targeting is an important goal for a variety of gene therapy applications and involves eliminating or reducing the normal tropism of a vector and retargeting through a distinct receptor-ligand pathway. The first step of Ad vector infection is high-affinity binding to a target cellular receptor. For the majority of adenoviruses and Ad vectors, the fiber capsid protein serves this purpose, binding to the coxsackievirus and adenovirus receptor (CAR) present on a variety of cell types. In this study we have explored a novel approach to altering Ad type 5 (Ad5) vector targeting based on serotypic differences in fiber function. The subgroup B viruses bind to an unidentified receptor that is distinct from CAR. The subgroup F viruses are the only adenoviruses that express two distinct terminal exons encoding fiber open reading frames. We have constructed chimeric fiber adenoviruses that utilize the tandem fiber arrangement of the subgroup F genome configuration. By taking advantage of serotypic differences in fiber expression, fiber shaft length, and fiber binding efficiency, we have developed a tandem fiber vector that has low binding efficiency for the known fiber binding sites, does not rely on an Ad5-based fiber, and can be grown to high titer using conventional cell lines. Importantly, when characterizing these vectors in vivo, we find the subgroup B system and our optimal tandem fiber system demonstrate reduced liver transduction by over 2 logs compared to an Ad5 fiber vector. These attributes make the tandem fiber vector a useful alternative to conventional strategies for fiber manipulation of adenovirus vectors.
Lipase‐catalyzed ester exchange reactions in organic media with controlled humidity (1987)

Immobilized lipase activity is studied in organic solvent systems of controlled water content under the influence of a variety of reaction parameters, such as temperature, relative humidity, substrate concentrations, and type of fatty acid used. Control of the amount of water in the reaction system was found to be a valuable tool for the orientation of the reaction process and for the determination of the final reaction products. The properties of the immobilized lipase were studied using the interesterification of triolein and palmitic acid as the model system.
35 GHz FMCW drone detection system (2016)

This paper presents an experimental system dedicated for the detection and tracking of small aerial targets such as Unmanned Aerial Vehicles (UAVs) in particular small drones (multirotors). The system was proposed in response to increasing drone popularity and the related threats. The hardware and software parts of the system are covered, including the analogue front-end, FPGA based pre-processing and PC based processing, detection and tracking. Real life trials are described with promising results provided. Further research on the subject is proposed.
The Consequences Of Fetal Impoverishment (1968)

Professor of Nutrition at the University of California at Davis. A charter member of the Teratology Society, she has received wide recognition for her extensive research on the relationship of nutrition to congenital abnormalities
ON MINIMALITY IN PSEUDO-BCI-ALGEBRAS (2012)

In this paper we consider pseudo-BCK/BCI-algebras. In particular, we consider properties of minimal elements (<TEX>$x{\leq}a$</TEX> implies x = a) in terms of the binary relation <TEX>$\leq$</TEX> which is reflexive and anti-symmetric along with several more complicated conditions. Some of the properties of minimal elements obtained bear resemblance to properties of B-algebras in case the algebraic operations <TEX>$\ast$</TEX> and <TEX>$\circ$</TEX> are identical, including the property <TEX>$0{\circ}(0{\ast}a)$</TEX> = a. The condition <TEX>$0{\ast}(0{\circ}x)=0{\circ}(0{\ast}x)=x$</TEX> all <TEX>$x{\in}X$</TEX> defines the class of p-semisimple pseudo-BCK/BCI-algebras(<TEX>$0{\leq}x$</TEX> implies x = 0) as an interesting subclass whose further properties are also investigated below.