gebhart/patrepeval huggingface dataset:
Compact Microstrip Band-pass Filter Using Open-loop Square Shaped DGS (2013)

This paper presents to implement a compact microstrip band-pass filter with open-loop square dumbbell-shaped defected ground structure (DGS). This filter is designed at 2.1 GHz center frequency. The prototype filter is with defected ground structure to provide higher order quasi-elliptic filtering and it reports the return loss of 39 dB with a 3 dB fractional bandwidth of 880 MHz. The bandwidth of the band-pass filter can be easily controlled by adjusting open-end locations along with the two loops of the DGS unit. This filter is simulated with method of moments ( MOM)-based IE3D simulation software
Data-driven Modeling of the Solar Corona by a New Three-dimensional Path-conservative Osher–Solomon MHD Model (2017)

Abstract A second-order path-conservative scheme with a Godunov-type finite-volume method has been implemented to advance the equations of single-fluid solar wind plasma magnetohydrodynamics (MHD) in time. This code operates on the six-component composite grid system in three-dimensional spherical coordinates with hexahedral cells of quadrilateral frustum type. The generalized Osher–Solomon Riemann solver is employed based on a numerical integration of the path-dependent dissipation matrix. For simplicity, the straight line segment path is used, and the path integral is evaluated in a fully numerical way by a high-order numerical Gauss–Legendre quadrature. Besides its very close similarity to Godunov type, the resulting scheme retains the attractive features of the original solver: it is nonlinear, free of entropy-fix, differentiable, and complete, in that each characteristic field results in a different numerical viscosity, due to the full use of the MHD eigenstructure. By using a minmod limiter for spatial oscillation control, the path-conservative scheme is realized for the generalized Lagrange multiplier and the extended generalized Lagrange multiplier formulation of solar wind MHD systems. This new model that is second order in space and time is written in the FORTRAN language with Message Passing Interface parallelization and validated in modeling the time-dependent large-scale structure of the solar corona, driven continuously by Global Oscillation Network Group data. To demonstrate the suitability of our code for the simulation of solar wind, we present selected results from 2009 October 9 to 2009 December 29 show its capability of producing a structured solar corona in agreement with solar coronal observations.
Antibody against epstein‐barr virus dna polymerase activity in sera of patients with nasopharyngeal carcinoma (1989)

A salt-dependent DNA polymerase activity was demonstrated in the culture of an EBV-producing, lymphoblastoid cell line (NPC-204 cells) treated with 5-iodo-2'-deoxyuridine (IUdR). There was a high frequency of levels of antibody to this enzyme in sera of patients with nasopharyngeal carcinoma (NPC). In contrast, sera from healthy subjects had little or no neutralizing activity. The high antibody level appeared as early as stage 1 of the disease in many NPC patients. The levels of the antibody increased with the progression of the disease and declined in treated patients. The results strongly suggest that tests measuring serum antibody against EBV DNA polymerase activity can be used for early diagnosis and prognosis of NPC.
Jawetz, Melnick and Adelberg's Medical Microbiology (1991)

Jawetz, Melnick And Adelberg's medical microbiology , Jawetz, Melnick And Adelberg's medical microbiology , کتابخانه دیجیتال جندی شاپور اهواز
A study of non stationary phenomena of HRV during 24-hour ECG ambulatory monitoring (2003)

The frequency components of heart-rate variability (HRV) as evaluated by spectral analysis are now widely used as an index of the autonomic nervous system. Other parameters, such as quantification of asymmetric ascending and descending trends and continuous evaluation of their amplitude, could also be of value. To make these parameters available, the authors describe two new methods: (1) an algorithm to detect the sites of inversion between successive accelerations and decelerations, and to store their wavelengths, numbers and amplitudes; and (2) an adaptive demodulating method based on a sinusoidal function sampled by the RR series. Instantaneous phase and amplitude deviations between the predicted model and the real value give access to the modulation of each frequency studied. For comparison with classical spectral analysis, data were averaged over buffers. Correlations were good for fast and slow variations, but higher for fast ones.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
A novel endogenous mediator of cutaneous inflammation: leukemia inhibitory factor. (1996)

Keratinocytes produce a variety of cytokines, including leukemia inhibitory factor. We hypothesised that this cytokine may play a pro-inflammatory role in the skin and tested this hypothesis by injecting recombinant leukemia inhibitory factor (1-100 ng) into the ear pinnae of C3H/HeJ mice. To other groups of animals, we injected boiled leukemia inhibitory factor or phosphate-buffered saline (negative control) or 0.4 ng human interleukin-1 alpha as a positive control. Following injection of 100 ng leukemia inhibitory factor, ear thickness, measured by micrometer, increased 66% over controls at 12 h and 100% at 24 h (overall p = 0.041 by analysis of variance). Injection of 0.4 ng interleukin-1 alpha caused greater ear swelling. Compared with controls, swelling increased by 67% at 6 h, 100% at 12 h and 340% after 24 h (overall p < or = 0.00001). Leukemia inhibitory factor (100 ng only) stimulated a 3.5-fold increase in leukocytes after 6 h. After 12 h, a 14-fold increase was seen in ears injected with 10 ng leukemia inhibitory factor and a 12-fold increase with 100 ng leukemia inhibitory factor, which remained elevated (17-fold) at 24 h (overall p = 0.0001). Injection of interleukin-1 alpha led to a 3.4-fold increase in leukocytes (mean per 20 high-power fields) after 6 h, a 14-fold increase at 12 h and a 25-fold increase at 24 h (overall p < or = 0.00001). These results demonstrate that leukemia inhibitory factor appears to be a mediator of cutaneous inflammation.
Pseudoepitheliomatous hyperplasia in cutaneous T-cell lymphoma. A clinical, histopathological and immunohistochemical study with particular interest in epithelial growth factor expression (1999)

Pseudoepitheliomatous hyperplasia has occasionally been reported in cutaneous T-cell lymphoma (CTCL). This association raises the question of the relationship between epidermal hyperplasia and the lymphomatous infiltrate. Because epidermal growth factor (EGF) and transforming growth factor-alpha (TGF-alpha) have been demonstrated to be involved in epidermal proliferation through binding to EGF receptor (EGFr), we tested the hypothesis that these cytokines could be secreted by lymphomatous cells, and induce the overlying pseudoepitheliomatous hyperplasia. The purposes of this study were: (i) to describe the clinical and immunohistological features of pseudoepitheliomatous hyperplasia; (ii) to determine its frequency in a large series of CTCLs; and (iii) to evaluate the expression of EGF, TGF-alpha and EGFr in CTCL with or without pseudoepitheliomatous hyperplasia. Eleven cases of CTCL with pseudoepitheliomatous hyperplasia were collected from a series of 353 cases of cutaneous lymphoma registered from 1990 to 1996. They consisted of eight of 28 (28.5%) CD30+ large T-cell lymphomas and three of 148 (2%) cases of mycosis fungoides. Epidermal expression of EGF, EGFr and TGF-alpha was stronger in CTCL than in control normal human skin. Lymphomatous T cells expressed EGF and TGF-alpha whereas no expression of these cytokines could be detected in cutaneous and nodal B-cell lymphomas, nor in a normal lymph node. In addition, epidermal expression of EGFr was stronger in CTCL with pseudoepitheliomatous hyperplasia than in control cases of CTCL without pseudoepitheliomatous hyperplasia, suggesting that these cytokines, in association with other factors, are probably involved in the epidermal hyperplasia observed in some cases of CTCL.
The superoxide generation of neutrophils in normal and preeclamptic pregnancies. (1993)

Preeclampsia is characterized by the presence of a neutrophil activator that enhances superoxide production. This enhanced production may contribute to the pathophysiologic changes observed in preeclampsia.
Overexpression of peroxiredoxin in human breast cancer. (2001)

The peroxiredoxins (Prx) are a family of 25 kDa peroxidases that can reduce H2O2 using an electron from thioredoxin (Trx) or other substances. The mammalian Prx family is divided into six groups (Prx I-VI) on the basis of homology of amino acid sequences. They are located in the cytosol and play a role in the cell signaling system. Previous reports have shown that Prx II has proliferative and anti-apoptotic properties and thus may induce carcinogenic changes. We conducted this study to reveal the change in expression of Prx in human breast cancer in comparison to normal tissues. Western immunoblotting using Prx type I, II and III antibodies was undertaken on 24 human breast cancer tissues and normal counterparts. We used antibodies against purified recombinant NKEF-A/PAG, NKEF-B and MER 5 which are the Prx isoforms. Type I Prx was overexpressed in the cancer tissues of 21 patients (87.5%), type II in 18 patients (75%) and type III in 19 patients (79.2%) in relation to normal tissue. However, no significant relationship was found between Prx overexpression and clinicopathological parameters of breast cancer such as tumor size, lymphatic invasiveness, hormone receptor status or nuclear and histologic grade. In conclusion, Prx is overexpressed in breast cancer tissues to a great extent suggesting that Prx has a proliferative effect and may be related to cancer development or progression.
High-content aminoglycoside disks for determining aminoglycoside-penicillin synergy against Enterococcus faecalis (1988)

We investigated the use of high-content aminoglycoside disks for determining Enterococcus faecalis susceptibility to aminoglycoside-penicillin synergy. The susceptibility of the organisms to synergy was established by 24-h time-kill studies performed with streptomycin, kanamycin, amikacin, gentamicin, and tobramycin, alone and in combination with penicillin. A total of 20 isolates that were susceptible to all drug combinations and 20 strains that were resistant to each aminoglycoside-penicillin combination were selected for testing against high-content disks. Disk-agar diffusion was performed on Mueller-Hinton agar, with and without 5% sheep blood, by using disks that contained either 300 or 2,000 micrograms of streptomycin and either 120 or 2,000 micrograms of kanamycin, amikacin, tobramycin, or gentamicin. Zone size results obtained for each aminoglycoside, except amikacin, could be used to differentiate between synergy-susceptible and -resistant isolates. No overlap occurred between the zone sizes of susceptible and resistant strains. Susceptibility to amikacin-penicillin synergy could reliably be tested with kanamycin, but not amikacin, disks. When the disks containing 120 micrograms were tested, a narrow zone size range of 6 to 7 mm could be used to identify all resistant strains. In contrast, when the disks containing 2,000 micrograms were used, the zone size ranges for resistant isolates varied widely with the aminoglycoside being tested. The presence of blood in the medium did not appreciably affect the disk test results. To detect resistance to every aminoglycoside-penicillin combination that may be considered for therapy, E. faecalis isolates need to be tested against a maximum of three different high-content disks (i.e., streptomycin, gentamicin, kanamycin). The disk-agar diffusion test performed with high-content aminoglycoside disks can provide laboratories with a convenient and reliable method for detecting E. faecalis isolates that are resistant to aminoglycoside-penicillin synergy.
Increased upconversion performance for thin film solar cells: a trimolecular composition (2015)

Photochemical upconversion based on triplet-triplet annihilation (TTA-UC) is employed to enhance the short-circuit currents generated by two varieties of thin-film solar cells, a hydrogenated amorphous silicon (a-Si:H) solar cell and a dye-sensitized solar cell (DSC). TTA-UC is exploited to harvest transmitted sub-bandgap photons, combine their energies and re-radiate upconverted photons back towards the solar cells. In the present study we employ a dual-emitter TTA-UC system which allows for significantly improved UC quantum yields as compared to the previously used single-emitter TTA systems. In doing so we achieve record photo-current enhancement values for both the a-Si:H device and the DSC, surpassing 10<sup>-3</sup> mA cm<sup>-2</sup> sun<sup>-2</sup> for the first time for a TTA-UC system and marking a record for upconversion-enhanced solar cells in general. We discuss pertinent challenges of the TTA-UC technology which need to be addressed in order to achieve its viable device application.
Laser offset-frequency locking using a frequency-to-voltage converter (1998)

Many applications of lasers in research and industry require that a slave laser can be frequency locked at some selectable offset frequency from a stable reference laser. Conventionally an optical phase lock circuit has been used to provide this frequency lock. In some applications there is no requirement to ensure phase coherency between the two lasers, and in these cases, the high bandwidth requirements of a phase-locked loop make the circuit much more complicated than necessary. We describe a much simpler frequency-locking circuit, based on a commercial frequency-to-voltage converter, which is capable of reducing frequency fluctuations between the lasers to less than 400 Hz for time scales longer than 0.1 s.
Protection from angiotensin II‐induced cardiac hypertrophy and fibrosis by systemic lentiviral delivery of ACE2 in rats (2005)

Angiotensin converting enzyme 2 (ACE2), a newly discovered member of the renin-angiotensin system (RAS), is a potential therapeutic target for the control of cardiovascular disease owing to its key role in the formation of vasoprotective peptides from angiotensin II. The aim of the present study was to evaluate whether overexpression of ACE2 could protect the heart from angiotensin II-induced hypertrophy and fibrosis. Lentiviral vector encoding mouse ACE2 (lenti-mACE2) or GFP was injected intracardially in 5-day-old Sprague-Dawley rats. This resulted in expression of mACE2 in cardiac tissue for the duration of the study. Infusion of 200 ng kg-1 min-1 angiotensin II for 4 weeks resulted in an 80 mmHg increase in systolic blood pressure, a significant increase in the heart weight to body weight ratio (HW:BW), and marked myocardial fibrosis in control rats. Transduction with lenti-mACE2 resulted in significant attenuation of the increased HW:BW and myocardial fibrosis induced by angiotensin II infusion. These observations demonstrate that ACE2 overexpression results in protective effects on angiotensin II-induced cardiac hypertrophy and fibrosis.
Cryotherapy for Breast Fibroadenomas (2005)

Cryotherapy of fibroadenomas is a safe, effective, and virtually painless clinic-based (ie, outpatient) treatment option with good cosmesis.
Building mosaics from video using MPEG motion vectors (1999)

Abstract : In this paper, we present a novel way of creating mosaics from an MPEG video sequence. Two original aspects of our work are that (1) we explicitly compute camera motion between frames and (2) we deduce the camera motion directly from the motion vectors encoded in the MPEG video stream. This enables us to create mosaics more simply and quickly than with other methods.
Local magnetic anisotropy control in NiFe thin films via ion irradiation (2002)

A method for altering the local direction and angular dispersion of anisotropy in soft magnetic films using energetic ion irradiation is demonstrated. NiFe films 50 Å thick were irradiated with 200 keV Ar+ ions to doses between 1013 and 1016 ions/cm2, while a saturating magnetic field was applied to the samples. This annealing field defined the new anisotropy direction of the irradiated areas, and the irradiation process also led to changes in the angular dispersion of anisotropy orientation, as measured by angle-dependent remanence of magnetization. By appropriate masking of films, this technique has been used to pattern samples with small “anisotropy domains.”
Optimizing utilization efficiencies in electronegative discharges: The importance of the impedance phase angle (1999)

We have investigated the operating conditions that result in the greatest utilization efficiencies (UEs) of NF3, CF4, and C2F6 in a capacitively coupled GEC reference cell. We have also independently measured the rf electrical characteristics and optical emission spectra of the plasmas. To avoid inadvertently attributing changes in the UE, discharge impedance, rf currents, or atomic emission intensities to parasitic losses in the matching network or rf delivery system, the rf generator was adjusted to ensure that the same amount of power was dissipated within each discharge. For the NF3 plasmas, argon was used as a diluent and both the NF3 concentration and reactor pressure were varied. For the CF4 and C2F6 based plasmas, the gas compositions were fixed (86 mol % CF4/O2 and 50 mol % C2F6/O2) and the reactor pressure was varied. The greatest NF3 UEs occurred within a narrow range of NF3 partial pressures. The greatest CF4 and C2F6 UEs occurred within a narrow range of reactor pressures. For all mixtures, operating conditions that yielded the highest UEs also yielded the brightest plasmas, the lowest impedance magnitudes, the greatest fraction of current flowing to the grounded electrode, and impedance phase angles within a narrow window centered near φpe=−40°. Within this region, plasma power is most efficiently utilized to dissociate the source gas and excite the atoms that emit light. Collapsed plasmas, observed for high pressure highly electronegative conditions, exhibited very low UEs. At optimal operating conditions the UE of the fluorinated source gases were found to decrease in the order: NF3&gt;C2F6&gt;CF4. The results of this study suggest that the baseline corrected fluorine atom emission intensity (703.7 nm), the magnitude of the discharge impedance, or phase angle of the discharge impedance could be monitored to determine the relative fluorinated source gas UE in an arbitrary plasma reactor as the operating conditions are varied. The concept of an ideal NF3 partial pressure could prove to be a useful strategy to prevent the formation of collapsed plasmas at high reactor pressures while maintaining high NF3UEs.
Flavor Design of Sesame-flavored Dressing Using Gas Chromatography/Olfactometry and Food Kansei Model (2006)

Instrumental and sensory analyses were carried out on sesame-flavored dressings to identify the odorants affecting their perceived quality. The sampling of the odor-active compounds was performed by simultaneous steam distillation extraction (SDE) and solid-phase microextraction (SPME). The odor intensity and character of the compounds were evaluated and quantified using gas chromatography/olfactometry (GC/O). The GC/O and the sensory data were processed and analyzed on the basis of food kansei model. Seven perceptual factors affecting the aroma and flavor were abstracted by principal component analysis (PCA) of the sensory data. According to the percentage of contribution, the first perceptual factor of “roast and spicy” was identified as a key factor. The correlations between the odorants and the “roast and spicy” factor clarified the importance of sulfurous compounds. Four sulfurous compounds were identified as butanethiol, prenyl mercaptane, 2-methyl-3-furanthiol and dimethyl trisulfide.
Sensor-based Training Optimization of a Cyclist Group (2007)

Determining the optimal exercise intensity is a crucial factor to increase performance in professional cycling. Novel sensor technologies allow to optimize the training not only for an individual cyclist but also for an entire training group. A sensor-based assisted bicycle trainer (ABT) system with a control algorithm has been developed at the University of Kaiserslautern to optimize the group training in cycling. The focus of this paper is on the development of the control algorithm, a model predictive controller (MPC) for the optimization of the group training. The controller predicts the heart rate of the cyclists based on individualized heart rate models and regulates the group training by advising cyclists to change the position in the group, to adjust the group speed, or to split the group in such a way that each cyclist can meet his training plan as exactly as possible.
Developing Literate Identities with English Language Learners through Digital Storytelling (2008)

__________ Digital storytelling provides an opportunity for children and adolescents to design multimodal narratives that represent and reflect upon their lives and interests. In the article we look at how two English language learners, Diego, a male Mexican-American kindergartener, and Allie Feng, a female Chinese-American junior in high school, drew upon their sociocultural identities, foundational literacies practices, and new literacies competencies to design and present digital stories. _____________________ School literacy instruction is often based on a traditional, print-based conception of text (Alvermann, Moore, Hinchmann, Phelps, & Waff, 1998; Hagood, Provost, Skinner, & Egelson, in press). At the same time, children’s and adolescents’ out-of-school literacies and cultural practices related to popular culture texts (Alvermann et al., 1998; Hagood, Stevens, & Reinking, 2002; Moje, 2002) and multi-modal, digital texts (Lewis & Fabos, 2005; Majar, 2001) are highly motivating, and, as such, can serve as a valuable scaffolds for students’ academic learning (Skinner, 2007b; Hobbs & Frost, 2003; Morrell, 2002). Research on children’s and adolescents’ new literacies practices outside of school has shown that they read and utilize texts using sophisticated literacy competencies (Mackey, 2003; Vasudevan, 2006). These literacies involve engagements such as those with popular culture (Alvermann, Moon, & Hagood, 1999; Dyson, 2003); using visual and digital technologies
Group 5A Metal Oxides as Promoters for Oxidative Coupling of Methane (1992)

Abstract Group 5A metal oxides were tested as promoters for oxidative coupling of methane. They were effective promoters for the coupling reaction, when mixed with 1A, 1A/2A, and 1A/3A oxide catalysts, respectively. Addition of Group 5A metal increased the activity of these catalysts.
Further reading (2009)

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