gebhart/patrepeval huggingface dataset:
Highly Active, Bifunctional Co(III)-Salen Catalyst for Alternating Copolymerization of CO<sub>2</sub> with Cyclohexene Oxide and Terpolymerization with Aliphatic Epoxides (2010)

The cobalt(III) complex of a salen ligand bearing one quaternary ammonium salt on the three-position of one aromatic ring is a highly active catalyst for the alternating copolymerization of cyclohexene oxide (CHO) and CO2 to afford the corresponding poly(cyclohexene carbonate) (PCHC) at various temperatures. The cobalt-based catalyst exhibited excellent activity and selectivity for polymer formation at high temperatures up to 120 °C and even under low CO2 pressures of 0.1 MPa. Also, the cobalt(III)-salen complex could operate very efficiently for the terpolymerization of CHO and aliphatic epoxides with CO2 to provide selectively polycarbonates with a narrow polydispersity at high temperatures. The polycarbonates resulting from the terpolymerization of equimolar CHO and propylene oxide (PO) with CO2 have a close content for both cyclohexene carbonate and propylene carbonate units. This is ascribed to the presence of CHO significantly inhibiting the reactivity of PO and thereby causing a matched reactivity for both epoxides during the terpolymerization. The competition coordination of CHO and PO to the electrophilic cobalt(III) ion has no effect on regioselective ring-opening of PO in the terpolymerization.
Magic canvas (2007)

Construction of a 3-D scene consisting of multiple objects can be tedious work. Existing 3-D editing tools require the user to choose an appropriate model in a database first and then carefully place it in the scene at a desired position combining various operations such as translation, rotation, and scaling. To simplify the process, we propose a system that takes simple 2D sketches of models in a scene as input for 3D scene construction. The system then automatically identifies corresponding models in a database and puts them in the appropriate location and posture so that their appearance matches the user's input sketches. The system combines a 3-D model search and a 3-D posture estimation to obtain the result. This system allows the user to construct a prototype of a 3-D scene quickly and intuitively.
Exogenous Ether Lipids Predominantly Target Mitochondria (2012)

Ether lipids are ubiquitous constituents of cellular membranes with no discrete cell biological function assigned yet. Using fluorescent polyene-ether lipids we analyzed their intracellular distribution in living cells by microscopy. Mitochondria and the endoplasmic reticulum accumulated high amounts of ether-phosphatidylcholine and ether-phosphatidylethanolamine. Both lipids were specifically labeled using the corresponding lyso-ether lipids, which we established as supreme precursors for lipid tagging. Polyfosine, a fluorescent analogue of the anti-neoplastic ether lipid edelfosine, accumulated to mitochondria and induced morphological changes and cellular apoptosis. These data indicate that edelfosine could exert its pro-apoptotic power by targeting and damaging mitochondria and thereby inducing cellular apoptosis. In general, this study implies an important role of mitochondria in ether lipid metabolism and intracellular ether lipid trafficking.
Investigation of intercooling effect in CO2 capture energy consumption (2011)

The aqueous absorption technology is one of the most feasible options for post combustion CO2 capture. High energy requirement is the main problem for this technology. Intercooling is possibly one of the strategies that can reduce the energy consumption in some cases. It is used in other industries like oil refineries and has a promising effect on energy use reduction. However, the effect may depend on the absorbent system used and the configuration of the process. In this study, the effect of intercooling is investigated for monoethanolamine (MEA) and diethanolamine (DEA). The results show that the best location for intercooling, based on minimizing energy requirement per kg of CO2 captured is about 1/4th to 1/5th of the height of the column from the bottom. The effect of different parameters like lean loading, amine concentration, cooling temperature, etc is investigated in this study. The results for MEA and DEA are compared to see the effect of solvent on intercooling performance.
The Diagnosis of Deep Vein Thrombosis Using the 125I Fibrinogen Test (1972)

A simplified technique for detecting phlebothrombosis of the legs is using radioiodinated fibrinogen. In 88 patients, the accuracy of the test was 92%, as determined by concurrent phlebography. The test was also applied in 784 patients in various high risk groups, wherein the incidence of phlebothrombosis was as follows: 469 elective surgical patients, 27.8%; 50 patients with hip fractures, 54%; 42 patients undergoing prostatectomy, 23.8%; 100 obstetric patients, 3%; 92 women undergoing major gynecological surgery, 18.8%; and 31 patients with proven myocardial infarction, 19%. The method was also useful in 82 patients thought to have established phlebothrombosis by clinical criteria. Disadvantages of the test include its inability to detect phlebothrombosis in the upper femoral and iliac regions, the possible risk of serum hepatitis (no cases seen in over 800 patients studied), and the number of personnel required if a large number of patients are to be screened. Its advantages are simplicity, accuracy, portability, and lack of trauma.
A Combination of Docking/Dynamics Simulations and Pharmacophoric Modeling To Discover New Dual c-Src/Abl Kinase Inhibitors (2006)

A computational protocol was applied to identify molecular scaffolds untested toward the c-Src tyrosine kinase. A combination of docking and dynamics calculations allowed us to build three-dimensional models of the complexes between Src and several of its known inhibitors. Interactions most contributing to activity of the inhibitors, in terms of hydrogen bonds and hydrophobic contacts, were codified into pharmacophoric models that were in turn applied to perform a search of commercially available compounds within the Asinex database. As a result, we identified 1,3,4-thiadiazoles and pyrazolydine-3,5-diones showing inhibitory activity in the submicromolar range in a cell-free assay toward Src. Moreover, since several of the compounds used to generate pharmacophores were also known as Abl inhibitors, we tested the identified hits toward Abl tyrosine kinase, finding activity in the submicromolar range. Such biological data suggested that the computational protocol is an efficient tool for identifying new hits toward both Src and Abl.
Design and Implementation of Smart Irrigation System Based on LoRa (2017)

Water resource: one of the most important natural resource problem to be paid more attention in the world in 21st Century. Irrigation method in traditional agriculture has low utilization of water resource. With the development of Internet of Things(IoT), smart irrigation system has became a new trend in the field of agricultural irrigation. This paper proposes a LoRa- based smart irrigation system. In this system, the irrigation node is mainly composed of LoRa communication module, solenoid valve and hydroelectric generator. The irrigation node sends data to cloud through LoRa gateways via wireless transmission. The system can be controlled remotely by mobile applications. Experimental results show that both transmission distance and energy consumption in the proposed system are reliable the proposed system are reliable.
Development of an adjustment free audio tuner IC (1996)

We have developed a Bi CMOS tuner IC utilizing an adjustment free, digital delay, FM detector and an adjustment free stereo multiplex (MPX) voltage controlled oscillator (VCO) circuit that requires no external parts.
<i>In vivo</i> measurement of frequency characteristicsof phase velocity of bone with bendingvibration (1995)

The authors propose a new method of measuring the frequency characteristics of phase velocity along a bone for bending vibration modes to diagnose its mechanical characteristics. By introducing a simple model of a distributed-constant network, the phase velocity is determined for each frequency from the spatial distribution of velocity along a radius bone surface which is measured by the ultrasonic Doppler method.
Reduction dechlorination of carbon tetrachloride by cobalamin(II) in the presence of dithiothreitol: mechanistic study, effect of redox potential and pH (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReduction dechlorination of carbon tetrachloride by cobalamin(II) in the presence of dithiothreitol: mechanistic study, effect of redox potential and pHNada. Assaf-Anid, Kim F. Hayes, and Timothy M. VogelCite this: Environ. Sci. Technol. 1994, 28, 2, 246–252Publication Date (Print):February 1, 1994Publication History Published online1 May 2002Published inissue 1 February 1994https://pubs.acs.org/doi/10.1021/es00051a010https://doi.org/10.1021/es00051a010research-articleACS PublicationsRequest reuse permissionsArticle Views740Altmetric-Citations79LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Effects of a PAF Antagonist, Y-24180, on Bronchial Hyperresponsiveness in Patients With Asthma (1995)

The involvement of platelet-activating factor (PAF) in bronchial hyperresponsiveness (BHR) in bronchial asthma has been controversial. To determine whether PAF is involved in BHR in humans, we carried out a randomized, double-blind, placebo-controlled, two-phase cross-over study on the effects of Y-24180, a potent, specific, orally active PAF receptor antagonist, on BHR to methacholine in patients with asthma. The subjects were 13 patients with extrinsic stable asthma. The provocative concentration of methacholine producing a 20% fall in FEV1 (PC20-FEV1) was measured as an index of BHR. Y-24180 (20 mg twice a day) or a placebo was orally administered for 2 wk, respectively. At the time of cross-over from the first treatment regimen to the second regimen, administration of the test drug was suspended for 2 wk. The methacholine challenge test was performed four times, before and after the first treatment period and before and after the second treatment period. Compared with the placebo, Y-24180 significantly (p = 0.005) improved the PC20-FEV1 value without carryover effect and period effect by analysis of variance. These results suggest that PAF is an important mediator involved in the BHR of bronchial asthma in humans.
Evaluation of Methods for Nitrogen and Phosphorus Control in Sewage Effluents (1992)

ABSTRACT The design parameters for the City of Copenhagen sewage‐treatment works were established on an experimental basis, and parallel studies of six pilot plants were made over a two‐year period. The key parameters are (a) the rate of nitrification and denitrification, (b) temperature, and (c) BOD: N ratio in the influent. The data obtained from different methods had to be normalized with respect to the fraction of nitrifiers, temperature, and concentrations of substrates in order to achieve consistent results. The results indicated a substantial inhibition of the nitrifiers, i.e. a 20–30% reduction of the reaction rate. Significant savings were made possible by a comprehensive analysis of the temperature conditions.
Triple-junction a-Si solar cells with heavily doped thin interface layers at the tunnel junctions (2003)

Triple-junction a-Si based solar cells, having a structure of SS/Ag/ZnO/n/sup +//n/b/a-SiGe-i/b/p/p/sup +//n/sup +//n/b/a-SiGe-i/b/p/p/sup +//n/sup +//n/a-Si-i/p /p/sup +//ITO, are fabricated at the University of Toledo using a multi-chamber, load-locked PECVD system. We studied the effect of heavily doped p/sup +/ and n/sup +/ layers deposited at the tunnel junction interfaces between the top and middle component cells and between the middle and bottom component cells on the efficiency of triple-junction solar cells. Preliminary results show that thin, /spl sim/1nm, interface p/sup +//n/sup +/ layers improve the solar cell efficiency while thicker interface layers, /spl sim/4nm thick, cause the efficiency to decrease. Incorporating the improved interface layers at the tunnel junctions, as well as earlier improvements in the intrinsic layers, the p-i interface in terms of reducing the band-edge offset, and the a-SiGe component cells using bandgap-graded buffer layers, we fabricated triple-junction solar cells with 12.71% efficiency in the initial state and 10.7% stable efficiency after 1000 hours of 1-sun light soaking. Samples sent to NREL for independent measurements show 11.8% total-area (or 12.5% active-area) initial efficiency.
Calendar. (2004)

This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if the DOI has never been published anywhere online or in print and never otherwise distributed to or communicated with anyone (authors, readers, reviewers, etc.
Resistance to <i>Puccinia polysora</i> in Maize Accessions (2007)

A number of potential sources of general and specific resistance to southern corn rust were identified from 1,890 plant introduction accessions that were screened for reactions to Puccinia polysora race 9. Resistance appeared to differ among four accessions on which uredinia were not observed in initial screenings. Resistance to P. polysora in PI 186215 (Argentine inbred 2-687) was a chlorotic fleck, hypersensitive reaction that was conditioned by a single, dominant gene that was allelic with or very closely linked to the Rpp9 gene based on tests of allelism. All but 3 of 2,357 testcross progeny, (inbred 2-687 × Rpp9) × P<sub>S</sub> were resistant. Resistance in Ames 19016 (Va59) was effective in F<sub>1</sub> progeny and appeared to be dominant and simply inherited; however, this resistance appeared to be a slow-rusting or incomplete resistance that was effective in adult plants but not in young seedlings. Severity of southern rust was less than 10% on resistant progeny from crosses with Va59 compared with severity exceeding 70% on susceptible progeny. Resistance in plant introduction (PI) 186209 (Venezuelan flint) and NSL 75976 (IA DS61) were not effective in F<sub>1</sub> hybrid combination and, thus, probably have limited value in commercial maize. Resistance in PI 186209 may be conditioned by a single recessive gene and resistance in NSL 75976 may be co-dominant.
Human breast-cancer metastasis formation in a nude-mouse model: Studies of hyaluronidase, hyaluronan and hyaluronan-binding sites in metastatic cells (1999)

Few animal models are available to study metastasis formation. The purpose of the present study was to obtain a useful model of metastasis formation in nude mice in an attempt to analyze the stroma reaction and in particular the production and the expression of hyaluronan (HA), hyaluronidase, and HA-binding sites by cultivated cells, and HA and hyaluronectin (HN) in the invasive areas of tumors. Nude mice were subjected to i.p. injections of several human cancer cell lines (PLC/PRF/5, HepG2, CB 191, CB 193, PC3, CAL 51, SA 87 and SA 98), and formation of metastases was analyzed in different organs (lung, liver, kidney, spleen and axillary nodes) by immunohistochemical techniques. CAL 51, a breast-cancer-metastasis-derived cell line with a normal karyotype, produced i.p. tumors in 75% animals and metastases in 90% animals (detected in the liver and axillary nodes). Two modes of invasion by CAL 51 cells were observed in the liver: one, direct, from the surface of the liver and the other, indirect, via the bloodstream. HA and HN were strongly expressed at the invasion areas. A cell line derived from hepatic metastasis of CAL 51 (HMD CAL 51) presented an abnormal karyotype. HMD CAL 51 produced more hyaluronidase (12-fold) and HA (10-fold) and expressed more CD44 (1.6-fold) and other HA-binding sites (9.5-fold) than the established cell line CAL 51. Our results show that i.p. injection of the CAL 51 cell line into nude mice provides a useful model of metastasis formation. The passage of the CAL 51 cells from the primary state to the metastatic state was characterized by a dramatic increase of HA and hyaluronidase production, and expression of HA, HN and HA-binding sites.
Comparison Study of [<sup>18</sup>F]FAl-NOTA-PRGD2, [<sup>18</sup>F]FPPRGD2, and [<sup>68</sup>Ga]Ga-NOTA-PRGD2 for PET Imaging of U87MG Tumors in Mice (2011)

[(18)F]FPPRGD2, an F-18 labeled dimeric cyclic RGDyK peptide, has favorable properties for PET imaging of angiogenesis by targeting the α(v)β(3) integrin receptor. This radiotracer has been approved by the FDA for use in clinical trials. However, the time-consuming multiple-step synthetic procedure required for its preparation may hinder the widespread usage of this tracer. The recent development of a method using an F-18 fluoride-aluminum complex to radiolabel peptides provides a strategy for simplifying the labeling procedure. On the other hand, the easy-to-prepare [(68)Ga]-labeled NOTA-RGD derivatives have also been reported to have promising properties for imaging α(v)β(3) integrin receptors. The purpose of this study was to prepare [(18)F]FPPRGD2 [corrected] , [(18)F]FAl-NOTA-PRGD2, and [(68)Ga]Ga-NOTA-PRGD2 and to compare their pharmacokinetics and tumor imaging properties using small animal PET. All three compounds showed rapid and high tracer uptake in U87MG tumors with high target-to-background ratios. The uptake in the liver, kidneys, and muscle were similar for all three tracers, and they all showed predominant renal clearance. In conclusion, [(18)F]FAl-NOTA-PRGD2 and [(68)Ga]Ga-NOTA-PRGD2 have imaging properties and pharmacokinetics comparable to those of [(18)F]FPPRGD2. Considering their ease of preparation and good imaging qualities, [(18)F]FAl-NOTA-PRGD2 and [(68)Ga]NOTA-PRGD2 are promising alternatives to [(18)F]FPPRGD2 for PET imaging of tumor α(v)β(3) integrin expression.
Quantitative Auger sputter depth profiling of very thin nitrided oxide (1990)

Plasma nitridation of thin oxides has been investigated at a temperature of 950 °C for 10 min–6 h and within an rf power of between 400 and 1100 W. The nitrogen composition in these films has been characterized in sputter depth Auger experiments. The sensitivity of this technique has been widely improved by the use of the sequential layer sputtering model. This model allows the actual nitrogen distribution in the film to be determined by taking into account the sputtering effect and by the escape depth of oxygen and nitrogen electrons. The results are observed to be independent of the oxide thickness in the range of 10–60 nm. Rapid thermal nitridation of 16-nm-thick oxides at 950 °C for 300 s and at 1150 °C for 15–300 s has also been studied by this method. Comparison of the results obtained using both techniques is made with a view to microelectronic applications.
A dual translinear-based true RMS-to-DC converter (1998)

A new design technique for a true rms-to-dc converter is implemented around a dual translinear-based squarer circuit. A dual translinear loop and current mirrors are the basic building blocks in this realization scheme, and the computation is carried in current-mode. The conversion circuit consists of a squarer, a low-pass filter and a square-root circuit. Since no rectifier function is required, this converter configuration enables us to obtain a wideband frequency response. The input signal can he voltage or current. In addition, the modification of the converter to construct a vector summation computing circuit is also discussed.
ALIENTA LA CRISIS LA DEPRESION PSIQUICA (1988)

MEXICO, COMO PAIS QUE INGRESA POCO A POCO A LA MODERNIDAD Y A LA INDUSTRIALIZACION, NO QUEDA FUERA DE LOS TRASTORNOS PSICOFISIOLOGICOS QUE AFECTAN A LAS SOCIEDADES CONTEMPORANEAS. TANTO LA CRISIS ECONOMICA COMO LA GRAVE PERDIDA DEL PODER ADQUISITIVO DE LA POBLACION HAN INCREMENTADO LOS CASOS DE DEPRESION DENOMINADA REACTIVA, LOS DELITOS DE SANGRE, EL ALCOHOLISMO Y, EN CIERTOS CASOS, EL SUICIDIO. ASI LO INDICO EL DOCTOR JORGE GUEVARA LANGET, SUBDIRECTOR GENERAL DE SERVICIOS MEDICOS Y PSICOLOGO PROFESIONAL.
Excluded volume effects on the partition of macromolecules between two liquid phases (1990)

Partition parameters of several proteins and other macromolecules are measured in an aqueous two-phase liquid system containing polyethylene glycol and phosphate buffer. Distribution of macromolecules is a function of the relative volume excluded to the macromolecules in the two phases. A simple model with no adjustable parameters yields covolumes of the macromolecules with the polyethylene glycol. Covolumes are used to estimate effective molecular volumes and the magnitudes of excluded volume effects. The same approach is applied to mixtures of macromolecules.
<title>Film Selection Considerations For Video Photography</title> (1982)

Obtaining hard copy images from computerized medical imaging devices generally involves photographing video displays, often with a multi-image camera. Appropriate film selection for video photography with a negative type film requires considerations of the characteristics of the cathode ray tube (CRT) being photographed and the properties of a video image. Of particular importance is the contrast transfer characteristic of the CRT. In this paper we discuss the CRT characteristics and their effect on film selection. The significant film parameters are reviewed and their effects on film image quality are discussed. Our results indicate that a film for video photography should have high contrast (G = 2.5 to 3.0), relatively high speed, be orthochromatically sensitized and be single emulsion. Appropriate camera adjustment and quality control techniques are of major importance in achieving optimum film images, the former is briefly discussed.