gebhart/patrepeval huggingface dataset:
Characterization of the Enhancement Effect of Na<sub>2</sub>CO<sub>3</sub> on the Sulfur Capture Capacity of Limestones (2003)

It has been known for a long time that certain additives (e.g., NaCl, CaCl2, Na2CO3, Fe2O3) can increase the sulfur dioxide capture-capacity of limestones. In a recent study we demonstrated that very small amounts of Na2CO3 can be very beneficial for producing sorbents of very high sorption capacities. This paper explores what contributes to these significant increases. Mercury porosimetry measurements of calcined limestone samples reveal a change in the pore-size from 0.04-0.2 microm in untreated samples to 2-10 microm in samples treated with Na2CO3--a pore-size more favorable for penetration of sulfur into the particles. The change in pore-size facilitates reaction with lime grains throughout the whole particle without rapid plugging of pores, avoiding premature change from a fast chemical reaction to a slow solid-state diffusion controlled process, as seen for untreated samples. Calcination in a thermogravimetric reactor showed that Na2CO3 increased the rate of calcination of CaCO3 to CaO, an effect which was slightly larger at 825 degrees C than at 900 degrees C. Peak broadening analysis of powder X-ray diffraction data of the raw, calcined, and sulfated samples revealed an unaffected calcite size (approximately 125-170 nm) but a significant increase in the crystallite size for lime (approximately 60-90 nm to approximately 250-300 nm) and less for anhydrite (approximately 125-150 nm to approximately 225-250 nm). The increase in the crystallite and pore-size of the treated limestones is attributed to an increase in ionic mobility in the crystal lattice due to formation of vacancies in the crystals when Ca is partly replaced by Na.
No evidence for association of ataxia-telangiectasia mutated gene T2119C and C3161G amino acid substitution variants with risk of breast cancer (2002)

The 2119C and 3161G amino acid substitution variants are not associated with moderate or high risks of breast cancer in Australian women.
ChemInform Abstract: Aldol Condensation of Ketones Promoted by Sterically Crowded Aryloxide Compounds of Aluminum. (1990)

Abstract The mixture (III)/(IV) crystallizes in P21 with Z=2.
Natural killer cell activity in multiple sclerosis. (1981)

Abstract Twenty patients with multiple sclerosis (MS) and 20 age- and sex-matched controls were studied for natural killer (NK) cell activity against 3 different target cell lines: Hela, K562, and M-Hela (a Hela strain persistently infected with measles virus). The MS patients had less natural killing against M-Hela than did the control population (mean NK ± SE for controls = 34.3 ± 4.9; for MS = 22.7 ± 2.9; p &amp;lt; 0.05), whereas NK activity was not significantly different between the 2 groups when tested against K562 (controls = 43.5 ± 4.4; MS = 36.2 ± 4.2; p = 0.2). There were no differences between MS patients and controls in the number of circulating NK cells as defined by the presence of avid Fc receptors for IgG. In addition, there was no difference in antibody-dependent cell-mediated cytotoxicity against M-Hela between the 2 groups (controls = 21.6 ± 4.1; MS = 17.5 ± 2.4; p &amp;gt; 0.5). Serum levels of measles antibody were higher in MS patients than in controls, although there was no correlation between NK activity against M-Hela or K562 and the level of antimeasles antibody. The presence of the A3,B7 histocompatibility antigens was associated with decreased natural killing against M-Hela in the MS group (A3,B7 positive = 14.0 ± 2.2; A3,B7 negative = 28.3 ± 4.7; p &amp;lt; 0.02) but not in healthy controls (A3,B7 positive = 25.4 ± 3.4; A3,B7 negative = 24.6 ± 5.9; p &amp;gt; 0.9). Interferon could not be detected in sera from any MS patient or control or in the CSF from a different group of MS patients. These results suggest that a qualitative defect in natural killing may exist in MS; that this defect may be selective, involving reactivity against some target cell lines and not others; and that this defect is predominantly found in patients of the A3,B7 histocompatibility type.
Supplementary Figure 1 from The Dual EGFR/HER2 Inhibitor Lapatinib Synergistically Enhances the Antitumor Activity of the Histone Deacetylase Inhibitor Panobinostat in Colorectal Cancer Models (2023)

Supplementary Figure 1 from The Dual EGFR/HER2 Inhibitor Lapatinib Synergistically Enhances the Antitumor Activity of the Histone Deacetylase Inhibitor Panobinostat in Colorectal Cancer Models
Selective recognition of fluoride salts by vasarenes: a key role of a self-assembled in situ dimeric entity via an exceptionally short [O–H–O]<sup>−</sup> H-bond (2016)

A self-assembled supramolecular dimeric entity via an exceptionally short (2.404 Å) and strong (22.9 kcal mol(-1)) [O-H-O](-) hydrogen bond is the key to the special reactivity of vasarenes with fluoride salts. Vasarene is a self-assembled, vase-shaped compound, obtained by the reaction between ninhydrin and phloroglucinol. Analogous compounds are prepared by replacing the phloroglucinol with other polyhydroxy aromatics. Vasarenes show special affinity towards compounds of the type M(+)F(-), where M being a large monovalent cation, producing ion-pair-vasarene adducts. The first step in the proposed mechanism is the dissociation of the M(+)F(-) salt releasing F(-) to the solution, which may provide an explanation as to why only MF salts, which include large monovalent cations, undergo this reaction. From a practical point of view, the ease of their preparation and their special affinity towards fluoride salts make vasarenes potential means for salt separation. The readily formed dimeric structure with the very short [O-H-O](-) negative charge-assisted H-bond (-CAHB) can also be further used as a model in theoretical studies of such systems and understanding their role in biological processes.
BTK inhibitor therapy is effective in patients with CLL resistant to venetoclax (2020)

Highly active BTK inhibitors (BTKis) and the BCL2 inhibitor venetoclax have transformed the therapeutic landscape for chronic lymphocytic leukemia (CLL). Results of prospective clinical trials demonstrate the efficacy of venetoclax to salvage patients with disease progression on BTKis, but data on BTKi therapy after disease progression on venetoclax are limited, especially regarding durability of benefit. We retrospectively evaluated the records of 23 consecutive patients with relapsed/refractory CLL who received a BTKi (ibrutinib, n = 21; zanubrutinib, n = 2) after stopping venetoclax because of progressive disease. Median progression-free survival (PFS) and median overall survival after BTKi initiation were 34 months (range, <1 to 49) and 42 months (range, 2-49), respectively. Prior remission duration ≥24 months and attainment of complete remission or undetectable measurable residual disease on venetoclax were associated with longer PFS after BTKi salvage (P = .044 and P = .029, respectively). BTKi therapy achieved durable benefit for patients with the BCL2 Gly101Val venetoclax resistance mutation (estimated 24-month PFS, 69%). At a median survivor follow-up of 33 months (range, 2-53), 11 patients remained on BTKi and 12 had stopped therapy because of disease progression (n = 8) or toxicity (n = 4). Our findings indicate that BTKi therapy can provide durable CLL control after disease progression on venetoclax.
Phaseless Synthetic Aperture Radar With Efficient Sampling for Broadband Near-Field Imaging: Theory and Validation (2014)

This paper presents a broadband and phaseless synthetic aperture radar (SAR) with efficient sampling. The design relies on a novel phaseless monostatic element comprising a transmitter and a receiver. This element, together with a computationally inexpensive algorithm, can retrieve the phase of the monostatic scattered field at all the working band except for two small safety margins at the lower and upper frequencies. Furthermore, the phase retrieval works independently of the transmitter/receiver position. Consequently, conventional approaches to reduce the number of monostatic acquisition points can be employed. Thus, the proposed strategy is suitable to implement either arrays that benefit from a reduced number of low-complexity elements or raster scan systems that benefit not only from the cost reduction of the scanning components but also from a remarkable speed-up due to the reduced number of acquisition points. Moreover, in contrast to other off-axis schemes, the proposed system does not require neither mechanical nor electrical phase shifting and, therefore, it can be directly adapted to a large number of frequency bands. The performance of the system is validated by simulation and measurement examples in the millimeter-wave band.
Water as an Effective Additive for High‐Energy‐Density Na Metal Batteries? Studies in a Superconcentrated Ionic Liquid Electrolyte (2019)

The effect of water on the properties of superconcentrated sodium salt solutions in ionic liquids (ILs) was investigated to design electrolytes for sodium battery applications with water as an additive. Water was added to a 50 mol % solution of NaFSI [FSI=bis(fluorosulfonyl)imide] in the ionic liquid N-methyl-N-propylpyrrolidinium bis(fluorosulfonyl)imide (C<sub>3</sub> mpyrFSI). Although the thermal properties (e.g., glass transition temperature) showed little dependence on the water content, the viscosity and, in particular, the ionic conductivity were strongly affected. The Na|Na symmetrical cell cycling performance was strongly dependent on the applied current density as well as on the water content. At higher current densities (1.0 mA cm<sup>-2</sup> ) the polarization profiles showed a water dependence, suggesting that water was actively involved in the formation of an improved solid electrolyte interface layer (SEI) for high-water-content samples (1000-5000 ppm), resulting in improved long-term cycling stability. The initial impedance of cells cycled at 1.0 mA cm<sup>-2</sup> (measured after 20 cycles) was elevated after water addition, and large polarizations occured for the "wet" samples. However, with further cycling the wet cells began to exhibit lower polarization and improved stability compared to the "dry" sample. The Na|NaFePO<sub>4</sub> cell cycling performance was also demonstrated with minimal effect on the cell capacity, further highlighting the negligible activity of water in these electrolyte systems. In fact, reduced cell polarization and a more clearly defined charge profile were evident after water addition. The work shown here suggests that water may be used as a convenient and inexpensive additive for superconcentrated sodium IL electrolytes for improved device performance.
A Fluorogenic Inhibitor of the Mitochondrial Calcium Uniporter (2022)

Abstract Inhibitors of the mitochondrial calcium uniporter (MCU) are valuable tools for studying the role of mitochondrial Ca 2+ in various pathophysiological conditions. In this study, a new fluorogenic MCU inhibitor, RuOCou , is presented. This compound is an analogue of the known MCU inhibitor Ru265 that contains fluorescent axial coumarin carboxylate ligands. Upon aquation of RuOCou and release of the axial coumarin ligands, a simultaneous increase in its MCU‐inhibitory activity and fluorescence intensity is observed. The fluorescence response of this compound enabled its aquation to be monitored in both HeLa cell lysates and live HeLa cells. This fluorogenic prodrug represents a potential theranostic MCU inhibitor that can be leveraged for the treatment of human diseases related to MCU activity.
Effectof Nonideal Solution Behavior on Desalination of a Sodium Chloride Solution and Comparison toSeawater (2013)

Abstract Proper evaluation of the Gibbs free energy and other properties of seawater and other aqueous solutions is essential in the analysis of desalination systems. Standard seawater has been studied extensively and property data are readily accessible. However, many aqueous solutions requiring desalination have significantly different compositions from seawater and seawater data are generally not accurate for these solutions. Experimental data for a given aqueous solution may be unavailable under the conditions of interest. Therefore, there is a need to model relevant physical properties from chemical thermodynamic principles. In particular, for solutions that are not ideal, the activity and fugacity coefficients must be considered. In this paper, the effect of nonidealities in sodium chloride (NaCl) solutions is considered through a parametric study of the least work of separation for a desalination system. This study is used to determine the conditions under which the ideal solution approximation is valid and also to determine when an NaCl solution is a good approximation to standard seawater. It is found that the ideal solution approximation is reasonable within ranges of salinities and recovery ratios typical of those found in the seawater desalination industry because many of the nonidealities cancel out, but not because the solution behaves ideally. Additionally, it is found that NaCl solutions closely approximate natural seawater only at salinities typically found in seawater and not for salinities found in typical brackish waters.
Shape from Texture: Homogeneity Revisited (2000)

The objective of this paper is to estimate the orientation of a scene plane from an uncalibrated perspective image under the assumption that the scene is coated with a homogeneous (but unknown) texture. We make the following novel contributions: first, we show that the problem is equivalent to estimating the vanishing line of the plane; second, we show that estimating the two degrees of freedom of this line can be decomposed into two searches each for one parameter; third, we give an algorithm for this estimation which is applicable to both regular and irregular textures. The algorithms do not require that texels are identified explicitly. But once the plane vanishing line has been obtained, then texels locations can be determined, and the geometry of the scene plane computed up to an affine transformation. We give examples of these computations on real images.
ChemInform Abstract: Structure‐Affinity Relationships of 12‐Sulfonyl Derivatives of 5,8,8a, 9,10,11,12,12a,13,13a‐Decahydro‐6H‐isoquino(2,1‐g)(1,6)naphthyridines at α‐Adrenoceptors. (1991)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ToF-SIMS Analysis of Fiberglass Cloths for PCB Manufacturing (2011)

Woven fiberglass cloths are by far the most common reinforcement material used in PCBs. The glass yarns are coated with silane-based coupling agents designed to improve the bond between the glass filaments and the resin matrix. Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) was utilized in order to garner a better understanding of the observed poor glass surface wetting and weak adhesion of the resin to the yarn. These are the major root causes for a number of PCB failure mechanisms such as delamination cracks, IR (insulation resistance) and CAF (conductive anodic filament) growth. ToF-SIMS revealed that the silane surface is far from being ideal. The results are used to derive recommendations for the glass cloth suppliers in order to improve the efficiency of their silanation process.
Assessment of Traffic Noise Pollution in Traffic Agents (2013)

Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digitales de tema americanista a los investigadores y usuarios interesados de cualquier parte del mundo.
Association Between Stillbirth and Risk Factors Known at Pregnancy Confirmation (2011)

Multiple risk factors that would have been known at the time of pregnancy confirmation were associated with stillbirth but accounted for only a small amount of the variance in this outcome.
Use of a New Rat Chondrosarcoma Cell line to Delineate a 119-Base Pair Chondrocyte-specific Enhancer Element and to Define Active Promoter Segments in the Mouse Pro-α1(II) Collagen Gene (1995)

We show that a new rat chondrosarcoma (RCS) cell line established in long-term culture from the Swarm tumor displayed a stable differentiated chondrocyte-like phenotype. Indeed, these cells produced the collagen types II, IX, and XI and alcian blue-stainable cartilage-specific proteoglycans, but no type I or type III collagen. To functionally characterize their chondrocytic nature, the cells were stably transfected with a type II collagen/beta geo chimeric gene which confers essentially perfect chondrocyte-specific expression in transgenic mice. RCS cells expressed both beta-galactosidase and G418 resistance, in comparison with similarly transfected 10T1/2 and NIH/3T3 fibroblasts which did not. These cells were then used to perform a systematic deletion analysis of the first intron of the mouse type II collagen gene (Col2a1) using transient expression experiments to determine which segments stimulated expression of a luciferase reporter gene in RCS cells but not in 10T1/2 fibroblasts. Cloning of two tandem copies of a 156-base pair (bp) intron 1 fragment (+2188 to +2343) in a construction containing a 314-bp Col2a1 promoter caused an almost 200-fold increase in promoter activity in RCS cells but no increase in 10T1/2 cells. DNase I footprint analysis over this 156-bp fragment revealed two adjacent protected regions, FP1 and FP2, located in the 3'-half of this segment, but no differences were seen with nuclear extracts of RCS cells and 10T1/2 fibroblasts. Deletion of FP2 to leave a 119-bp segment decreased enhancer activity by severalfold, but RCS cell specificity was maintained. Further deletions indicated that sequences both in the 5' part of the 119-bp fragment and in FP1 were needed simultaneously for RCS cell-specific enhancer activity. A series of deletions in the promoter region of the mouse Col2a1 gene progressively reduced activity when these promoters were tested by themselves in transient expression experiments. However, these promoter deletions were all activated to a similar level in RCS cells by a 231-bp intron 1 fragment that included the 156-bp enhancer. The RCS cell-specific activity persisted even if the Col2a1 promoter was replaced by a minimal adenovirus major late promoter. This 231-bp intron 1 fragment also had strong enhancing activity in transiently transfected mouse primary chondrocytes. Our experiments establish the usefulness of RCS cells as an experimental system for studies of the control of chondrocyte-specific genes, provide an extensive delineation of segments in the Col2a1 first intron involved in chondrocyte-specific activity, and show that promoter sequences are dispensable for chondrocyte specificity.
DETECTION OF LOW-MASS-RATIO STELLAR BINARY SYSTEMS (2012)

O- and B-type stars are often found in binary systems, but the low binary mass-ratio regime is relatively unexplored due to observational difficulties. Binary systems with low mass ratios may have formed through fragmentation of the circumstellar disk rather than molecular cloud core fragmentation. We describe a new technique sensitive to G-and K-type companions to early B stars, a mass ratio of roughly 0.1, using high-resolution, high signal-to-noise spectra. We apply this technique to a sample of archived VLT/CRIRES observations of nearby B stars in the CO bandhead near 2300 nm. While there are no unambiguous binary detections in our sample, we identify HIP 92855 and HIP 26713 as binary candidates warranting follow-up observations. We use our non-detections to determine upper limits to the frequency of FGK stars orbiting early B-type primaries.
Lifetime improvement of green phosphorescent organic light-emitting diodes by charge confining device structure (2007)

Lifetime improvement of green phosphorescent organic light-emitting diodes by charge confinement inside an emitting layer was investigated. Excitons were confined within the emitting layer by using a charge confining structure with a high doping concentration at the center of the emitting layer. The lifetime of green devices could be improved by more than five times by confining the excitons at the center of the emitting layer.
DC-side harmonic compensation in DC traction applications (2002)

A problem associated with DC traction substations is the nonrobustness of the passive filters used for the filtering of the harmonics induced by the substation's 12-pulse rectifiers. These harmonics cause problems with the communications and the signalling on the DC railway lines. Interference with the railway signalling system can have serious and sometimes fatal effects. Therefore, a method is being devised by which the problematic harmonics can be compensated for by means of an active power filter (APF) on the DC-side of the substation's 12-pulse rectifiers.
Assay and Isolation of Single Proliferating CD4+ Lymphocytes Using an Automated Microraft Array Platform (2019)

This novel technology enables the identification of TCR sequences based on T cell proliferation which is expected to speed the development of future cancer immunotherapies.
Right‐Sided Infective Endocarditis 2020: Challenges and Updates in Diagnosis and Treatment (2020)

Compared with the extensive data on left-sided infective endocarditis (IE), there is much less published information on the features and management of right-sided IE. Right-sided IE accounts for 5% to 10% of all IE cases, and compared with left-sided IE, it is more often associated with intravenous drug use, intracardiac devices, and central venous catheters, all of which has become more prevalent over the past 20 years. In this manuscript on right-sided IE we provide an up-to-date overview on the epidemiology, etiology, microbiology, potential locations of infection in the right heart, diagnosis, imaging, common complications, management, and prognosis. We present updated information on the treatment of pacemaker and device infections, infected fibrin sheaths that appear to be an easily missed source of infection after central line as well as pacemaker removal. We review current data on the AngioVac percutaneous aspiration device, which can obviate the need for surgery in patients with infected pacemaker leads and fibrin sheaths. We also focused on advanced diagnostic modalities, such as positron emission tomography/computed tomography. All of these are supported by specific case examples with detailed echocardiographic imaging from our experience.
Dual Element Monopole Antennas Embedded in Small UAV Wing Structures with Beam-Steering Capability (2010)

In this paper, we present the design and fabrication of a dual monopole antenna array embedded in the wing structure of a small unmanned aerial vehicle (UAV) with a center frequency of 2.45 GHz and bandwidth of more than 100 MHz. The dual antenna array has a beam steering capability that will enhance the radio link performance and extend the communication range of the UAV. The antenna array is characterized at an outdoor antenna range facility, and its performance is investigated in terms of the gain, HPBW, as well as the beam direction as a function of the relative phase between the two elements. Embedded antennas will reduce drag and lower integration costs for UAVs. Such vehicles are being extensively used in exploration, surveillance and military operations.