gebhart/patrepeval huggingface dataset:
Electronic and electron spin resonance spectroscopic study of zinc-reduced di(4-pyridyl) ketone methiodides (1970)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic and electron spin resonance spectroscopic study of zinc-reduced di(4-pyridyl) ketone methiodidesNicolae Filipescu, Felix E. Geiger, Charles L. Trichilo, and Fredrick L. MinnCite this: J. Phys. Chem. 1970, 74, 25, 4344–4346Publication Date (Print):December 1, 1970Publication History Published online1 May 2002Published inissue 1 December 1970https://pubs.acs.org/doi/10.1021/j100719a009https://doi.org/10.1021/j100719a009research-articleACS PublicationsRequest reuse permissionsArticle Views51Altmetric-Citations3LEARN 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 options Get e-Alerts
Confessions of a Converted Lecturer (Keynote) (2013)

I thought I was a good teacher until I discovered my students were just memorizing information rather than learning to understand the material. Who was to blame? The students? The material? I will explain how I came to the agonizing conclusion that the culprit was neither of these. It was my teaching that caused students to fail! I will show how I have adjusted my approach to teaching and how it has improved my students' performance significantly
Moving object extraction using a shape-constraint-based splitting active contour model (2005)

This paper proposes an efficient moving object extraction method based on an active contour model, which is usually called a Snake. The previous Snakes cannot extract multiple objects inside one contour, since they require that one initial contour can only include one object. Such a restriction becomes a problem for moving object extraction application, because an initial contour may contain more than one object including not only the extraction target but also other objects. To deal with this kind of problem, the proposed method utilizes a new splitting mechanism. By incorporating this mechanism, the proposed Snake can successfully extract each of the multiple objects located inside one initial contour. The experiments of extracting moving vehicles from actual image sequences verify the effectiveness and high performance of the proposed method.
Optimization and Comparative Evaluation of Multiloop Control Schemes for Controllable AC Sources With Two-Stage <inline-formula> <tex-math notation="LaTeX">$LC$</tex-math> </inline-formula> Output Filters (2015)

This study investigates the control system design and its small-signal properties for the output stage of a high-bandwidth four-quadrant three-phase switch-mode controllable AC voltage source (CVS) with an output power of 10 kW, a switching frequency of 48 kHz, and a two-stage LC output filter. Each output phase of the CVS is operated individually, i.e., the phase voltages are generated with reference to the DC input-voltage midpoint, to allow maximum flexibility in the generation of the output-voltage waveforms to supply a wide range of different load types, such as DC, single-phase, and general three-phase loads including constant-power loads leading to negative small-signal load-resistance values. Three suitable multiloop control structures with inner-currentand outer-voltage-control loops are motivated, modeled, and are optimized with respect to different control performance indicators, e.g., small-signal control bandwidth, and for common boundary conditions, e.g., maximum overshoot of the output voltage in case of a reference voltage step. All structures employ conventional P and PI controllers, due to their simplicity and widespread use. Among the three structures, the capacitor-current feedback-control structure, which controls the two filter capacitor currents and the output voltage, is identified to be most competitive. The small-signal bandwidth determined for this structure is between 7.1 kHz and 15.5 kHz, depending on the value of the load resistance. This result, in combination with an excellent matching of calculated and measured step responses of the output voltage of a 10 kW hardware prototype, point out the effectiveness of the selected control structure and the usability of control structures that are composed of conventional P and PI controllers.
Comparison of WDM network topologies (2002)

In this paper we study a comparison of mesh and ring topologies for WDM networks. The bandwidth benefits obtained in a mesh over its two-degree counterpart (ring) is offset by increase in cost. The relative figure of merit based on capacity and cost indicated that ring networks are superior to the mesh networks. We study the two cases in terms of blocking probability and protection times as well as cost functions.
Plumbagin inhibits proliferative and inflammatory responses of T cells independent of ROS generation but by modulating intracellular thiols (2010)

Plumbagin inhibited activation, proliferation, cytokine production, and graft-versus-host disease in lymphocytes and inhibited growth of tumor cells by suppressing nuclear factor-kappaB (NF-kappaB). Plumbagin was also shown to induce reactive oxygen species (ROS) generation in tumor cells via an unknown mechanism. Present report describes a novel role of cellular redox in modulation of immune responses in normal lymphocytes by plumbagin. Plumbagin depleted glutathione (GSH) levels that led to increase in ROS generation. The decrease in GSH levels was due to direct reaction of plumbagin with GSH as evinced by mass spectrometric and HPLC analysis. Further, addition of plumbagin to cells resulted in decrease in free thiol groups on proteins and increase in glutathionylation of proteins. The suppression of mitogen-induced T-cell proliferation and cytokine (IL-2/IL-4/IL-6/IFN-gamma) production by plumbagin was abrogated by thiol antioxidants but not by non-thiol antioxidants confirming that thiols but not ROS play an important role in biological activity of plumbagin. Plumbagin also abrogated mitogen-induced phosphorylation of ERK, IKK, and degradation of IkappaB-alpha. However, it did not affect phosphorylation of P38, JNK, and AKT. Our results for the first time show that antiproliferative effects of plumbagin are mediated by modulation of cellular redox. These results provide a rationale for application of thiol-depleting agents as anti-inflammatory drugs.
2-D particle tracking to determine transport characteristics in rivers with dead zones (2004)

A Lagrangian-Particle-Tracking-Method (LPTM) has been developed to determine the influence of dead water zones on the transport characteristics in natural rivers. Hereby, the local processes at single dead water zones have been investigated with the help of laboratory experiments. The resulting information, such as storage time, velocity distribution, and distribution of the diffusivity has been implemented into the LPTM. The method has been tested by comparing the results of the simulation with analytical solutions to the one-dimensional advection-diffusion equation. It could be shown that in the presence of large dead water zones at the river banks, an equilibrium between longitudinal shear and transverse diffusion can be reached if the morphologic conditions do not change. The simulations are leading asymptotically to a Gaussian distribution of the cross sectional averaged concentration in longitudinal direction. The transport velocity resulting from LPTM corresponds to the transport velocity predicted by the one-dimensional dead-zone-model only for certain geometrical conditions, which correspond to a fixed exchange coefficient. The transverse distribution of tracer material is influenced by the presence of dead water zones.
25(OH)D <sub>3</sub> and Cardiovascular Risk Factors in Female Nonhuman Primates (2012)

Higher plasma concentrations of 25(OH)D(3) were associated with more favorable cardiovascular risk factors, with inverse associations observed between 25(OH)D(3) and abdominal obesity, HDL-C, and age. These associations were no longer significant when controlling for age.
SPACE CABIN LANDING IMPACT VECTOR EFFECTS ON HUMAN PHYSIOLOGY. (1964)

Human physiological effects and tolerance to simulated space cabin landing impacts in all body positions and configurations
Magnetic resonance imaging of the knee: does foot restraint improve the examination? (1993)

Involuntary movement by the patient can cause severe artefacts in magnetic resonance imaging of the knee. We have designed and constructed a device that immobilizes the foot, and thereby the knee. In this way the knee still remains accessible for the application of a variety of surface coils. A retrospective subjective analysis was performed of the magnetic resonance images from a control group of 23 patients who were examined without the restraint device and a study group of 26 patients in whom the device was used. The differences in the central tendency of subjective scores between the control and study groups were not significant for either motion artefact or anatomical conspicuity. However, in terms of dispersion the observed reduction in the study group was significant for anatomical conspicuity (p < 0.05) and almost significant for motion artefact (p < 0.10). These findings suggest that the restraint device may improve image quality by eliminating some of the worst motion artefacts. The device also significantly improves positioning of the knee in relation to the magnet isocentre (p < 0.01).
Synthesis of ZnO Nanocrystals with Cone, Hexagonal Cone, and Rod Shapes via Non‐Hydrolytic Ester Elimination Sol–Gel Reactions (2005)

ZnO nanocrystals with various shapes (see Figure) have been synthesized via non-hydrolytic ester elimination sol–gel reactions between zinc acetate and 1,12-dodecanediol. Uniform anisotropic cone-shaped, hexagonal cone-shaped, and rod-shaped ZnO nanocrystals have been synthesized using various surfactants. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2005/c2109_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.
Reactions of Carbonyl Compounds in Basic Solutions. Part 35<sup>1</sup>: The Alkaline Hydrolysis and Reactivity – Structure – Spectra Correlations of (Z)-4-(Substituted Benzylidene)-2-Phenyl-4H-Oxazol-5-Ones (2002)

The kinetics of the alkaline hydrolysis and the configuration, conformation and electronic structure were studied using IR, NMR spectroscopy, X-ray analysis and AM1 theoretical calculations for a series of (Z)-4-(substituted benzylidene)-2-phenyl-4H-oxazol-5-ones (1) and compared with analogous results reported for (E)-4-benzylidene-2-phenyl-4H-furan-5-ones (5) and related compounds.
Evaluation of different methods for the detection of methicillin resistance in coagulase-negative staphylococci [published erratum appears in J Antimicrob Chemother 1998 Feb;41(2):317-8] (1997)

The efficacy of 19 agar diffusion methods for the detection of methicillin resistance among coagulase-negative staphylococci (CoNS) within 24 h was evaluated. A total of 359 CoNS isolates were tested, of which 204 were Staphylococcus epidermidis. In 164 isolates, the presence of mecA was investigated; 61 strains were mecA-positive and 103 were mecA-negative by Southern blot analysis. Based on the best agreement shown with the mecA determination (94%) among four agar dilution assays for determining methicillin MIC, an assay with Columbia agar supplemented with NaCl and incubation with a heavy bacterial inoculum of 10(5)-10(6) cfu/spot was used as the reference MIC method. The best agar diffusion results were obtained with a 1 microg oxacillin disc on Columbia agar with 4.5% NaCl supplement. With this method, 99% of S. epidermidis and 94% of non-S. epidermidis were in agreement with the MIC determination. However, Columbia (without NaCl), Mueller-Hinton and Isosensitest agars were almost as useful when a 1 microg oxacillin disc was used. The zone breakpoints for S. epidermidis were, in general, considerably larger than those for other CoNS species and, consequently, differentiation according to species is recommended. Furthermore, resistance to other antibiotics, such as gentamicin and erythromycin, makes methicillin resistance highly likely.
Water-Resistant Release Coating for Uncured Rubber (1981)

Abstract Rubber is conventionally formed into sheets or slabs on a two-roll mill. These are immersed in a release agent (slab dip), followed by cooling and drying in air. The low rate of cooling associated with air limits the throughput in rubber mixers. The throughput can be significantly increased through the use of water for cooling. However, water cannot be used with conventional slab dips; it washes them from the rubber slabs, causing the slabs to stick together after stacking. A new slab dip now permits cooling rubber slabs rapidly with water. After they are dried and stacked, the slabs do not stick together. The new dip contains a unique combination of a carboxylated SBR latex, a heat sensitizer, fillers and other additives. The heat sensitizer causes the latex to gel rapidly after it contacts the hot surface of the rubber slabs; this provides a water-resistant release coating. Other additives in this slab dip control its wetting and rheological behavior. The new dip does not significantly alter physical properties of rubber compounds after they are coated and reprocessed.
[High oxygen breathing improves inhomogeneities of ventilation-perfusion distributions in acutely injured lungs]. (1994)

Using twenty-five mongrel dogs either with or without alveolar flooding induced by oleic acid administration, the effects of high oxygen breathing (60% O2) on ventilation--perfusion (VA/Q) distributions in the lungs were systematically investigated. VA/Q distributions were examined by multiple inert gas elimination technique, from which the VA/Q values describing mean positions of perfusion (Q) and ventilation (VA) distributions against the VA/Q axis were calculated (mean Q and mean VA). As the first measure of dispersion for VA/Q distribution, the log standard deviation was estimated (log SD (Q) and logSD (VA)). As the second measure of dispersion, the area under the curve, constructed by plotting inert gas arterial-to-alveolar partial pressure differences as a function of blood-gas partition coefficient, was calculated (aAD area). High oxygen breathing slightly enhanced the dispersion of VA/Q distributions in the normal dogs but decreased that in the dogs injured with oleic acid. Therefore, we concluded that high oxygen breathing worsened the inhomogenieties of VA/Q distributions in normal lungs but did improve those in acutely injured lungs.
Hydration of tricalcium aluminate and gypsum alone and in the presence of alite (2008)

LMC
Protein<i>O</i>-GlcNAcylation in diabetes and diabetic complications (2013)

The post-translational modification of serine and threonine residues of proteins by O-linked β-N-acetylglucosamine (O-GlcNAc) is highly ubiquitous, dynamic and inducible. Protein O-GlcNAcylation serves as a key regulator of critical biological processes including transcription, translation, proteasomal degradation, signal transduction and apoptosis. Increased O-GlcNAcylation is directly linked to insulin resistance and to hyperglycemia-induced glucose toxicity, two hallmarks of diabetes and diabetic complications. In this review, we briefly summarize what is known about protein O-GlcNAcylation and nutrient metabolism, as well as discuss the commonly used tools to probe changes of O-GlcNAcylation in cultured cells and in animal models. We then focus on some key proteins modified by O-GlcNAc, which play crucial roles in the etiology and progression of diabetes and diabetic complications. Proteomic approaches are also highlighted to provide a system view of protein O-GlcNAcylation. Finally, we discuss how aberrant O-GlcNAcylation on certain proteins may be exploited to develop methods for the early diagnosis of pre-diabetes and/or diabetes.
Anejaculation following spinal cord injury does not induce sperm‐agglutinating antibodies (1989)

Antisperm antibodies were tested for by the MAR-test and the tray agglutination test in 16 men with spinal cord injury. None of these men could ejaculate without artificial methods. Seven men ejaculated externally by vibrator stimulation or electroejaculation, while seven exhibited retrograde ejaculation; in two cases no semen was obtained. Sperm density in the external ejaculations was high (average = 405 x 10(6)/ml), with 10-45% motility. None of these 16 men had antisperm antibodies. This result indicates that anejaculation and sperm retention in men with spinal cord injury, even of 30 years duration, does not result in antisperm antibody formation.
Stereoselective Synthesis of Annular 9-<i>cis</i>-Retinoids and Binding Characterization to the Retinoid X Receptor (2002)

Analogues of 9-cis-retinoic acid incorporating an alicyclic ring between the C19 and C10 positions have been synthesized and evaluated as ligands for the RXRalpha nuclear receptor. The stereocontrolled synthesis of these configurationally constrained retinoids combines a Stille cross-coupling and the Wittig reaction as key bond-forming steps. The palladium-catalyzed cross-coupling reaction of the beta-bromo-alpha,beta-unsaturated aldehydes 5 to dienylstannane 6 is very fast at room temperature, and takes place with preservation of the dienylstannane geometry. A highly stereoselective Wittig reaction afforded the C7-C8 bond connecting the hydrophobic ring to the retinoid side chain. The binding affinities of these compounds for the receptor were determined, and the structural and energetic rationale behind the affinity profile of the cyclic 9-cis-retinoic acid derivatives for the RXRalpha nuclear receptor was characterized by using Molecular Mechanics protocols.
Plant Growth Promoting Rhizobacteria and Silicon Synergistically Enhance Salinity Tolerance of Mung Bean (2016)

The present study explored the eco-friendly approach of utilizing plant-growth-promoting rhizobacteria (PGPR) inoculation and foliar application of silicon (Si) to improve the physiology, growth, and yield of mung bean under saline conditions. We isolated 18 promising PGPR from natural saline soil in Saudi Arabia, and screened them for plant-growth-promoting activities. Two effective strains were selected from the screening trial, and were identified as Enterobacter cloacae and Bacillus drentensis using matrix-assisted laser desorption ionization-time-of-flight mass spectrometry and 16S rRNA gene sequencing techniques, respectively. Subsequently, in a 2-year mung bean field trial, using a randomized complete block design with a split-split plot arrangement, we evaluated the two PGPR strains and two Si levels (1 and 2 kg ha(-1)), in comparison with control treatments, under three different saline irrigation conditions (3.12, 5.46, and 7.81 dS m(-1)). The results indicated that salt stress substantially reduced stomatal conductance, transpiration rate, relative water content (RWC), total chlorophyll content, chlorophyll a, chlorophyll b, carotenoid content, plant height, leaf area, dry biomass, seed yield, and salt tolerance index. The PGPR strains and Si levels independently improved all the aforementioned parameters. Furthermore, the combined application of the B. drentensis strain with 2 kg Si ha(-1) resulted in the greatest enhancement of mung bean physiology, growth, and yield. Overall, the results of this study provide important information for the benefit of the agricultural industry.
Palladium-Catalyzed Double Cross-Coupling Reaction of vic-Diborylalkenes and -arenes with vic-Bromo(bromomethyl)arenes (2009)

Efficient annulation of vic-diborylalkenes and -arenes with vic-bromo(bromomethyl)arenes has been achieved, using Pd(PPh3)4 as a catalyst in the presence of Cs2CO3 and water in THF at 60 ˚C, giving rise to the corresponding indene and fluorene derivatives in good to high yields.
A Case–Control Study of a Sex-Specific Association between a 15q25 Variant and Lung Cancer Risk (2011)

This study has shown a sex difference in the association between the 15q25 variant rs3841324 and lung cancers. Further research is warranted to elucidate the mechanisms underlying these observations.
Neutron dosimetry (14 MeV) for foil samples irradiated with the Lawrence Livermore Laboratory Rotating Target Neutron Source (1973)

irradiated to produce Pr, Nb, and As radionuclides sufficient for decay scheme studies. The system may also be used for multielement fast-neutron activation analysis because the neutron flux is greater than 2 x 10/sup 11/ n/cm/sup 2/-sec. Single element analyses of Si and O are also possible. Finally, measurements of fast-neutron cross sections producing short-lived activation products can be performed with this system. A description of the rabbit system and instructions for its use are presented in this report.
Prognostic precision in postoperative<sup>99m</sup>Tc-MDP scintimetry after femoral neck fracture (1987)

A 2-year follow-up regarding healing complications, such as redisplacement, nonunion, and segmental collapse of the femoral head, was performed in 306 patients operated on for femoral neck fracture and examined with 99mTechnetium-MDP scintimetry within 2 weeks postoperatively. Scintimetric evaluation was performed by selecting regions of interest over the femoral head on the fracture side and the intact side and by comparing the uptake. A femoral head ratio fractured/intact side thus was obtained. Of 199 patients with an intact femoral head uptake (ratio greater than or equal to 1.0), 181 showed no signs of healing complications at 2 years, whereas 18 had developed healing complications. Of 107 cases with a deficient femoral-head uptake (ratio less than 1.0), 96 had developed healing complications within 2 years from the operation, while 11 cases had no signs of radiographic complications. We conclude that 99mTc-MDP scintimetry performed within 2 weeks from femoral neck fracture can predict the outcome of the healing course with a prognostic accuracy of 91 per cent.
Distributional and Developmental Variations of Multiple Forms of Calpastatin in Mouse Brain (1990)

DEAE-cellulose chromatography of mouse brain extract demonstrated the occurrence of two calpastatin fractions, CS-0.1 and CS-0.2, with distinctly higher content of the latter. CS-0.1 emerged from the column at 0.1 M NaCl, inhibited calpain II more strongly than calpain I, and identified also immunologically with hitherto known calpastatin. CS-0.2 emerged at 0.2 M NaCl, inhibited calpain I more strongly than calpain II, and did not crossreact with anti-calpastatin antibody used. Fairly consistent amounts of CS-0.2 and calpain II were found in the brain of mice from 10 days to 10 weeks after birth, while CS-0.1 became measurable only after 4-week growth. In adult mice, CS-0.1 was highest in specific activity in brainstem, lower in cerebellum, and not detectable in cerebral hemisphere. Physiological significance of multiple forms of calpastatin and their variations found is not known.