gebhart/patrepeval huggingface dataset:
A Method for Establishing Portal Drainage | of Adrenal Venous Blood in Dogs with Metabolicstudies Included (1955)

No AccessJournal of Urology1 Jan 1955A Method for Establishing Portal Drainage | of Adrenal Venous Blood in Dogs with Metabolicstudies Included John T. Grayhack and A. Page Harris John T. GrayhackJohn T. Grayhack American Cancer Society Clinical Fellow at the time this work was carried out. More articles by this author and A. Page HarrisA. Page Harris Present Address: Vanderbilt University Hospital, Nashville, Tenn. More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(17)67359-2AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail © 1955 by The American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetailsCited by Grayhack J, Keeler T and Kozlowski J (1987) Carcinoma of the prostate. Hormonal therapyCancer, 10.1002/1097-0142(19870801)60:3+<589::AID-CNCR2820601526>3.0.CO;2-R, VOL. 60, NO. S3, (589-601), Online publication date: 1-Aug-1987. Scott W (1971) Methods of Hormonal Treatment including Orchiectomy and Adrenalectomy International Symposium on the Treatment of Carcinoma of the Prostate, Berlin, November 13 to 15, 1969, 10.1016/B978-0-08-017572-0.50010-4, (81-91), . Grayhack J (1959) Hormonal Treatment of Prostatic CancerSurgical Clinics of North America, 10.1016/S0039-6109(16)35681-X, VOL. 39, NO. 1, (13-30), Online publication date: 1-Feb-1959. Marden H, Hopkins W and Scott W (2018) Lack of Conversion in Vivo of Δ4 Androstenedione-3,17 to a More Active Androgen by Passage Through the LiverJournal of Urology, VOL. 77, NO. 2, (315-317), Online publication date: 1-Feb-1957. Bernstein D, Biskind G and Lincoln Brown A (1956) Autotransplantation of the adrenal cortex to the mesentery combined with adrenalectomy and oophorectomy in the treatment of metastatic carcinoma of the breastThe American Journal of Surgery, 10.1016/S0002-9610(56)80057-3, VOL. 92, NO. 2, (174-188), Online publication date: 1-Aug-1956. Volume 73Issue 1January 1955Page: 1-16 Advertisement Copyright & Permissions© 1955 by The American Urological Association Education and Research, Inc.MetricsAuthor Information John T. Grayhack American Cancer Society Clinical Fellow at the time this work was carried out. More articles by this author A. Page Harris Present Address: Vanderbilt University Hospital, Nashville, Tenn. More articles by this author Expand All Advertisement PDF downloadLoading ...
Zone-plate-array lithography (ZPAL): optical maskless lithography for cost-effective patterning (2005)

Zone-Plate-Array Lithography (ZPAL) is an optical-maskless-lithography technique, in which an array of tightly focused spots is formed on the surface of a substrate by means of an array of high-numerical-aperture zone plates. The substrate is scanned while an upstream spatial-light modulator, enabling "dot-matrix" style writing, modulates the light intensity in each spot. We have built a proof-of-concept system using an array of zone plates, and the Silicon Light Machines Grating Light Valve (GLVTM) as the light modulator. We have demonstrated fully multiplexed writing, multilevel alignment and resolution corresponding to k<sub>1</sub> < 0.3. This system currently operates at l = 400nm and utilizes well-known I-line processes. Diffractive optics such as zone plates offer significant advantages over refractive approaches since near-ideal performance is achieved on axis, reliable planar fabrication techniques are used, costs are low, and the approach can be readily scaled to shorter wavelengths. In this paper, we also developed models and analyzed the cost-of-ownership of maskless lithography (ZPAL) versus that for optical-projection lithography (OPL). In this context, we propose the use of an effective throughput to consider the photomask delivery times in the case of OPL. We believe that ZPAL has the potential to become the most practical and cost-effective method of maskless lithography, enabling circuit designers to fully exploit their creativity, unencumbered by the constraints of mask-based lithography. This may revolutionize custom circuit design as well as research in electronics, NEMS, microphotonics, nanomagnetics and nanoscale science and engineering.
Chiral Cp‐Rhodium(III)‐Catalyzed Asymmetric Hydroarylations of 1,1‐Disubstituted Alkenes (2013)

Metal-catalyzed functionalizations at the ortho position of a directing group have become an efficient bond-forming strategy. A wide range of transformations that employ Cp*Rh(III) catalysts have been described, but despite their synthetic potential, enantioselective variants that use chiral versions of the Cp* ligand remain scarce (Cp*=pentamethyl cyclopentadienyl). Cyclopentadienyl compounds with an atropchiral biaryl backbone are shown to be suitable ligands for the efficient intramolecular enantioselective hydroarylation of aryl hydroxamates. Dihydrofurans that bear methyl-substituted quaternary stereocenters are thus obtained by CH functionalization under mild conditions.
Pregnancy stress, healthy pregnancy and birth outcomes – the need for early preventative approaches in pregnant Australian Indigenous women: a prospective longitudinal cohort study (2019)

Adverse pregnancy outcomes including prematurity and low birth weight (LBW) have been associated with life-long chronic disease risk for the infant. Stress during pregnancy increases the risk of adverse pregnancy outcomes. Many studies have reported the incidence of adverse pregnancy outcomes in Indigenous populations and a smaller number of studies have measured rates of stress and depression in these populations. This study sought to examine the potential association between stress during pregnancy and the rate of adverse pregnancy outcomes in Australian Indigenous women residing in rural and remote communities in New South Wales. This study found a higher rate of post-traumatic stress disorder, depression and anxiety symptoms during pregnancy than the general population. There was also a higher incidence of prematurity and LBW deliveries. Unfortunately, missing post-traumatic stress disorder and depressive symptomatology data impeded the examination of associations of interest. This was largely due to the highly sensitive nature of the issues under investigation, and the need to ensure adequate levels of trust between Indigenous women and research staff before disclosure and recording of sensitive research data. We were unable to demonstrate a significant association between the level of stress and the incidence of adverse pregnancy outcomes at this stage. We recommend this longitudinal study continue until complete data sets are available. Future research in this area should ensure prioritization of building trust in participants and overestimating sample size to ensure no undue pressure is placed upon an already stressed participant.
Optimization of Extraction and Dyeing Conditions of Natural Dye from Ratanjot Roots Using Ultrasonic Waves (2020)

The present work involves the optimization of extraction and dyeing recipes to standardize the procedure for natural dye obtained from the roots of Ratanjot (Onosma echiodes) using ultrasonic waves. The resultant dye obtained at optimized extraction conditions was applied on wool fabric to study the effect of temperature, dye concentration, time and dyeing pH. Optical density and colour strength (K/S value) were studied for evaluation of optimum extraction and dyeing conditions. It was observed that extraction and dyeing parameters have significant effect on colour characteristics of dyed wool fabric. The optimized extraction conditions were; dye extraction pH 7, extraction time 60 min and temperature 60ºC while optimized dyeing parameters were; dyeing temperature 60°C, dye concentration 2 g/g, dyeing time 75 min and dyeing pH 5. It was also observed that the optimum dye extraction time and pH is same with the conventional heating method but there is reduction in the temperature (60°C), dyeing time and dye concentration consumption in ultrasonic extraction and dyeing method, thus saves the energy, time and amount of dye requirement. Therefore, ultrasound wave represents a promising method for increasing diffusion of dye by the effect of cavitation, as well as for improving the effectiveness of processes as compare to conventional heating method.
A low power and high speed data transfer scheme with asynchronous compressed pulse width modulation for AS-Memory (1996)

This paper describes an approach to a low power and high speed data transfer scheme in the internal data bus of an AS-Memory which has ASIC circuitry and memory array. Pulse width modulation, which is operated asynchronously, is applied to the wide internal data bus. An automatic gain controlled amplifier which amplifies many small signals from the memory array is also newly developed to achieve a fast data output. Applying this architecture to an AS-Memory, the area and power consumption of the internal data bus interface can be reduced to 25% and 36%, respectively.
DNA-Dependent Protein Kinase Does Not Play a Role in Adaptive Survival Responses to Ionizing Radiation (1998)

We previously demonstrated that exposure of certain human tumor cells to very low chronic doses of ionizing radiation led to their enhanced survival following exposure to subsequent high doses of radiation.Survival enhancement due to these adaptive survival responses (ASRs) ranged from 1.5-fold to 2.2-fold in many human tumor cells.Furthermore, we showed that ASRs result from altered G1 checkpoint regulation, possibly mediated by overexpression of cyclin Dl, proliferating cell nuclear antigen (PCNA), and the X-ray induction of cyclin A. Because cyclin Dl and PCNA proteins are components of many DNA synthetic and repair processes in the cell, we tested the hypothesis that preexposure of cells to low doses of ionizing radiation enabled activation of the DNA repair machinery needed for survival recovery after high-dose radiation.We examined the role of DNA break repair in ASRs using murine cells deficient (i.e., severe combined immunodeficiency [SCIDI cells) or proficient (i.e., parental mouse strain [CB-1 71 cells) in DNA-dependent protein kinase catalytic subunit (DNA-PKcs) expression and DNA double-strand break repair.DNA-PKcs is a nuclear serine/threonine protein kinase that is activated by DNA breaks and plays a key role in double-strand break repair.DNA-PKcs also phosphorylates several nuclear DNA-binding regulatory transcription factor proteins (e.g., Spi and p53), which suggests that DNA-PKcs may play a role in regulating transcription, replication, and recombination as well as DNA repair, after radiation.Therefore, we exposed confluent SCID or CB-17 cells to low priming doses of ionizing radiation (i.e., 5 cGy) and compared the survival responses of primed cells to those of unprimed cells after an equitoxic high- dose challenge.Low-dose-primed SCID or CB-17 cells demonstrated 2-fold enhanced survival after a high-dose challenge compared to that of unprimed control cells.These data suggest that expression of the catalytic subunit of DNA-PKcs (expressed in CB-17 not SCID cells) and the presence of active double-strand break repair processes (active in CB-1 7, deficient in SCID cells) do not play a major role in ASRs in mammalian cells.Furthermore, we present data that suggest that DNA-PKcs plays a role in the regulation of the G2/M cell cycle checkpoint following extremely
Computed Tomography (2020)

The development of computed tomography (CT) for diagnostic imaging provides a potentially new modality for quantitative assessment of skeletal mineral. Bone mineral determination by the CT is based on the ability of CT to image a thin transverse slice through the body and to evaluate the attenuation coefficient of any region of interest. The effect of photon noise on CT numbers has been extensively studied. The polychromaticity of the X-ray source in CT causes the attenuation of the X-ray beam to deviate from exponential form. An ideal CT scanner would have an extremely high level of precision and accuracy for bone mineral densitometric analyses. The base noise level of a CT scanner can be determined by scanning a uniform water phantom and computing a quantity termed ‘‘noise-granularity’’. The CT results correlated well with subsequent calcium determination of specimens, indicating a high accuracy achievable in vitro.
Synthesis and characterization of microporous pillared α‐zirconium phosphate–biphenylenebis(phosphonate) (1999)

Nanocrystalline, microporous pillared zirconium phosphate–biphenylenebis(phosphonate) materials were obtained by a sol–gel route involving the reaction of the 4,4′-biphenylenebis(phosphonic acid) and phosphoric acid with tetra-n-propoxyzirconium, followed by a mild hydrothermal crystallization treatment. The variation of the micropore volume with the pillar fraction demonstrated that the micropores were of interlamellar origin; the pore size distributions showed the presence of well defined micropores along with a broad distribution of meso- and macro-pores. However, it was not possible to control the micropore volume and the micropore size by varying the pillar fraction.
Simulation of Primary Cervical Cancer Screening by the PAPNET System in an Unscreened, High-Risk Community (1997)

The PAPNET system, which would probably not be affordable as a quality assurance modality only in the public health sector of this country, was shown to be more than sufficiently effective as a primary screening method for the large numbers of women likely to undergo cervical cancer screening in anticipated mass population programs.
Social engineering: attacks have evolved, but countermeasures have not (2006)

The formidable threat Social engineering sounds like the stuff of spy movies, but it is very real-life as some recent high profile cases show. Social engineering works - it is very effective as it is a powerful psychological technique. The HP scandal that involved investigators impersonating board members, employees and journalists to obtain phone records shows just how far determined social engineers will go. Some HP employees took it slightly too far however, with directors having to file a statement with the US Securities and Exchange Commission (SEC) admitting to the company's violations. Social engineering is a threat that has evolved in sophistication in the last decade, however, countermeasures have not kept pace. The one real countermeasure is to empower security awareness in staff. Staff need to be aware of attacks on two fronts. There are two types of social engineering: technology-based and human-based deception. Social engineers will often claim they are real employees, and will ask to be emailed confidential information at a valid address as well as an external one. All employees, especially those with privileged information, including executives, human resource personnel, and personal administrators, must know how to spot a fraudster a mile away. And employees must be coached into staying calm and not revealing their suspicions to the fraudster. Security experts Richard Power and Dario Forte dissect the sneaky tactics that staff should watch out for… Social engineering, the practice of conning people into sharing sensitive information, is a cyber security threat that has evolved in sophistication and broadened in scope over the decade we have been both writing about it and training people how to thwart it. Unfortunately, in most organizations, countermeasures against social engineering have not kept pace.
Specular reflection from woven cloth (2012)

The appearance of a particular fabric is produced by variations in both large-scale reflectance and small-scale texture as the viewing and illumination angles change across the surface. This article presents a study of the reflectance and texture of woven cloth that aims to identify and model important optical features of cloth appearance. New measurements are reported for a range of fabrics including natural and synthetic fibers as well as staple and filament yarns. A new scattering model for woven cloth is introduced that describes the reflectance and the texture based on an analysis of specular reflection from the fibers. Unlike data-based models, our procedural model doesn't require image data. It can handle a wide range of fabrics using a small set of physically meaningful parameters that describe the characteristics of the fibers, the geometry of the yarns, and the pattern of the weave. The model is validated against the measurements and evaluated by comparisons to high-resolution video of the real fabrics and to BTF models of two of the fabrics.
Synthesis and characterization of a partially quaternized poly(1-vinylimidazole) bound to a ruthenium(II) complex and a viologen moiety (1998)

Three metallopolymers having both a photosensitizer and an electron acceptor on the same polymer backbone were prepared and characterized by UV-Vis absorption and fluorescence spectroscopies and thermal measurements as differential scanning calorimetry (DSC) and thermogravimetric differential analysis (TG/DTA). These metallopolymers consist of bis(2,2′-bipyridine)ruthenium(II) complexes as a photosensitizer and a viologen species as an electron acceptor linked covalently to the imidazolyl residues on partially quaternized poly(1-vinylimidazole) through an alkyl spacer. DSC curves showed a glass transition temperature at ca. 230°C and an exothermic peak around 170°C. The exothermic peak was assigned to the cleavage of the alkyl spacer between the viologen and the quaternized imidazolium segment. UV-vis absorption spectra showed that these polymers have three absorption maxima, the metal-to-ligand charge transfer band (MLCT) of the ruthenium(II) complex residue being in the visible region and two electronic transition bands deriving from the viologen residue and the imidazolyl ring in the UV region. These absorption maxima are independent of the length of the alkyl group in the viologen residues and the spacer between the imidazolyl and the viologen segment. However, the luminescence spectra depend significantly on the length of alkyl group and the spacer, demonstrating that part of the ruthenium(II) complex residues are quenched by viologen residues. Furthermore, quenching studies revealed that these polymers contain at least four ruthenium(II) complex residues on the same polymer backbone.
P82: The Role of Mesenchymal Stem Cells (MSCs) in EPC-Mediated Ischemic Vasculogenesis in Diabetes (2006)

Callaghan, Matthew J. MD; Grogan, Raymon H MD; Chang, Eric I. MD; Chang, Edwin PhD; Gurtner, Geoffrey C. MD
Improvement of Selective Catalytic Reduction System Performance in Combined Cycle Power Plants (2003)

Environmental regulations are very stringent in the U.S., requiring very low emissions of nitrogen oxides (NOx) from combined cycle power plants. Selective Catalytic Reduction (SCR) systems utilizing vanadium pentoxide (V2O5) as the active material in the catalyst are a proven method of reducing NOx emissions in the exhaust stack of gas turbines with heat recovery steam generators (HRSG) to 2–4 ppmvd. These low NOx emissions levels require an increase of SCR removal efficiency to the level of 90+ % with limited ammonia slip. The distribution of flow velocities, temperature, and NOx mass flow at the inlet of the SCR are critical to minimizing NOx and ammonia (NH3) concentrations in HRSG stack. The short distance between the ammonia injection grid and the catalyst in the HRSG complicates the achievement of homogeneous NH3 and NOx mixture. To better understand the influence of the above factors on overall SCR system performance, field testing of combined cycle power plants with an SCR installed in the HRSG has been conducted. Uniformity of exhaust flow, temperature and NOx emissions upstream and downstream of the SCR were examined and the results served as a basis for SCR system tuning in order to increase its efficiency. NOx mass flow profiles upstream and downstream of the SCR were used to assess ammonia distribution enhancement. Ammonia flow adjustments within a cross section of the exhaust gas duct yielded significantly improved NOx mass flow uniformity after the SCR while reducing ammonia consumption. Based on field experience, a procedure for ammonia distribution grid tuning was developed and recommendations for SCR performance improvement were generated.
Application of pulse doubling in delta/polygon-connected transformer-based 36-pulse ac-dc converter for power quality improvement (2012)

This paper presents a pulse doubling technique in a 36-pulse ac-dc converter which supplies direct torque-controlled motor drives (DTCIMD's) in order to have better power quality conditions at the point of common coupling. The proposed technique increases the number of rectification pulses without significant changes in the installations and yields in harmonic reduction in both ac and dc sides. The 36-pulse rectified output voltage is accomplished via two paralleled eighteen-pulse ac-dc converters each of them consisting of nine-phase diode bridge rectifier. A transformer is designed to supply the rectifiers. The design procedure of magnetics is in a way such that makes it suitable for retrofit applications where a six-pulse diode bridge rectifier is being utilized. Independent operation of paralleled diode-bridge rectifiers, i.e. dc-ripple re-injection methodology, requires a Zero Sequence Blocking Transformer (ZSBT). Finally, a tapped interphase reactor is connected at the output of ZSBT to double the pulse numbers of output voltage up to 72 pulses. The aforementioned structure improves power quality criteria at ac mains and makes them consistent with the IEEE-519 standard requirements for varying loads. Furthermore, near unity power factor is obtained for a wide range of DTCIMD operation. A comparison is made between 6-pulse, 36-pulse, and proposed converters from view point of power quality indices. Results show that input current total harmonic distortion (THD) is less than 3% for the proposed topology at variable loads.
Anti-proliferative activity of a novel tricyclic triterpenoid acid from Commiphora africana resin against four human cancer cell lines (2020)

Abstract Myrrh, a resin derived from the damaged bark of Commiphora genus, has traditionally been used for treatment of various human diseases, such as amenorrhea, ache, tumors, fever, and stomach pains. In spite of this widespread use of the myrrh in Ethiopia, the pharmacological activity and chemical composition have not been studied in detail. A new tricyclic triterpene acid (3 S ,4 S ,14 S ,7 E, 17 E ,21 Z )-3,30-dihydroxypodioda-7,17,21-trien-4-carboxylic acid (commafric A) has been isolated from a crude methanolic extract of Commiphora africana (A. Rich.) Engl. resin along with the known pentacyclic triterpene α-amyrin. The structure of commafric A was characterized using different spectroscopic techniques such as 1D and 2D NMR, IR, and VCD combined with computations. The anti-proliferative activity of both isolated compounds was evaluated using SRB based colorimetric cellular assay against four human cancer cell lines. Etoposide was used as a positive control. Commafric A showed significant anti-proliferative effects against non-small cell lung cancer (A549) with IC 50 values of 4.52 μg/ml. The pentacyclic triterpene α-amyrin showed a weak anti-proliferative activity against A2780 (ovarian cancer), MIA-PaCa-2 (pancreatic cancer), and SNU638 (stomach cancer) cell lines tested with IC 50 values ranging 9.28 to 28.22 μg/ml. Commafric A possessed anti-proliferative activity against non-small cell lung cancer (A549), which suggests that commafric A has potential to be further optimized being a lead compound in the search for new drugs against cancer diseases.