gebhart/patrepeval huggingface dataset:
Frequency Domain Packet Scheduling Under Fractional Load for the UTRAN LTE Downlink (2007)

In this paper we investigate the performance of frequency domain packet scheduling (FDPS) under fractional load (FL), based on the UTRAN long term evolution downlink. Under FL, the packet scheduler does not need to transmit on entire system bandwidth due to lack of traffic in the network, which leads to an improvement in the user experienced SINR. System-level simulations show that the proportional fair scheduler tries to optimize resource allocation by avoiding transmission on frequencies that are experiencing severe interference. As an example, FDPS can provide a gain of 4 dB in SINR over the round-robin scheduler, when the load is equal to 25%. The observed interference control is achieved without any centralized management. Further, FDPS under FL can provide an effective trade-off between cell throughput and coverage. The FDPS performance is dependent on the ability of link adaptation to track variations in interference. This ability is reduced when the frequency usage pattern is changing rapidly over time.
Performance of low-density parity-check codes with 16-QAM in fading channels (2003)

The rate design rules for the multilevel coding (MLC) are studied over the Rayleigh fading channel. By simulations on 16-QAM and Ungerboeck mapping, it is speculated that the coding exponent rule is yet the best for finite length. The MLC scheme using low-density parity-check (LDPC) codes performs within 2dB above the capacity limit at the bit error rate 10-5 for bandwidth efficiency 2-bits/symbol in the fully interleaved channel with channel state information. LDPC schemes suffer less signal-to-noise ratio penalty in correlated channels.
Synthesis and reactions of “biginelli‐compounds”. Part I (1989)

Abstract Various reactions of 2‐oxo(or thioxo)‐1,2,3,4‐tetrahydropyrimidine‐5‐carboxylic acid derivatives (Biginelli‐compounds) were investigated. The site of methylation and acylation on 6‐methyl‐4‐phenyl‐2‐thioxo‐1,2,3,4‐tetrahydropyrimidine‐5‐carboxylic acid ethyl ester 1a and its 2‐oxo derivative 9a was studied. The synthesis of pyrimido[2,3‐ b ]thiazines and thiazolo[3,2‐ a ]pyrimidines was accomplished by condensation of 1a with 1,3‐and 1,2‐dielectrophiles. A Dimroth‐like rearrangement yielding 6 H ‐1,3‐thiazines can be observed when 1a was treated with dimethylformamide and phosphorus oxychloride. The formation of indeno[1,2‐ d ]pyrimidines can be achieved by intramolecular Friedl‐Crafts acylation of 9a and 13 , respectively. Finally a route for the preparation of 4,6‐disubstituted‐pyrimidine‐5‐carbonitriles is presented, starting with Biginelli‐compound 25 .
Dry-reagent strips for measuring phenytoin in serum. (1986)

A new reagent strip has been developed for measuring phenytoin in serum or plasma. It utilizes the chemistry of the Apoenzyme Reactivation Immunoassay System (ARIS) and is designed for use with the Seralyzer reflectance photometer. The 90-s test relies on comparison of strip reactivities with a two-point calibration line, which can be validly stored in the instrument for two weeks. Within-run CVs for controls at five concentrations ranged from 2.7 to 5.6%, between-run CVs from 2.3 to 6.3%. Phenytoin values obtained for clinical serum samples correlated well (r greater than 0.99) with those obtained by liquid chromatography or substrate-labeled fluorescent immunoassay. The speed and convenience of this assay for monitoring phenytoin in serum make it well suited for decentralized test sites such as emergency rooms, urgent-care centers, and physician's offices.
Hydrogel wound dressings: where do we stand in 2003? (2003)

Among the many categories of advanced wound dressing products available today, hydrogels are popular because they are effective, comfortable, easy to use, and cost effective. With proper use, these agents provide control of wound surface hydration, sometimes absorbing excess exudate and often providing moisture. This review describes the chemistry of hydrogels, the physiology of their interaction with the wound surface, and their role in patient care. Hydrogels have been proven effective in facilitating repair of pressure, diabetic, vascular, burn, and other wounds, and they have supplanted saline-moistened gauze for many applications. Clinical evidence suggests that no particular hydrogel is significantly more efficacious than any other, implying that other factors such as cost and ease of use may guide clinician choice of product within this class of wound dressings.
Heat transfer, fluid transport and mechanical properties of porous copper manufactured by lost carbonate sintering (2014)

Over the last few decades, porous metals have received a growing interest in industry due to their unique physical and structural properties and many potential applications ranging from light weight structure, filtration, energy and sound absorption to thermal management and electromagnetic shielding. In thermal applications, high energy consumption units demand higher and higher heat transfer performance. Porous copper is an ideal option for these applications due to its high specific strength, excellent thermal conductivity and high surface area. The Lost Carbonate Sintering (LCS) method is an efficient and simple manufacturing process to produce porous copper with a large range of porosity, various pore sizes and pore shapes. The main objective of this study is to investigate the heat transfer, fluid transport and mechanical properties of porous copper fabricated by the LCS method. The permeability, thermal conductivity, heat transfer coefficient and mechanical properties were studied on a number of porous metal specimens with different porosities/relative densities, copper particle sizes, pore sizes, pore shapes and combinatorial structures. A purpose-built apparatus was used to study the effects of pore structure on permeability. The results showed that pressure drop of LCS porous copper fits well with the Forchheimer-extended Darcy equation. The permeability increased with porosity and copper particle size, but decreased with pore size. The permeability can be predicted well using the modified Carman-Konezy relationship by introducing the tortuosity of LCS porous metal for both single and double layer structures. The thermal conductivity of LCS porous copper increased with relative density and pore size, but decreased with copper particle size. The thermal conductivity decreased with the size ratio between copper particle and pore at any given porosity. An empirical equation was established to describe for this relationship. Heat transfer coefficients were measured for a large number of samples. Compared with an empty channel, introducing a porous copper sample enhanced the heat transfer coefficient by a factor of 2–10. The samples with low porosities and large pore sizes showed high heat transfer coefficients. There was an optimal porosity range for good heat transfer performance at a given pore size. The heat transfer coefficient of LCS porous copper with double-layers was sensitive to the placement-order of the layer. A segment model was developed to predict the heat transfer coefficient of multilayer structures and the predictions agreed well with the experimental results. The mechanical properties of LCS porous copper fabricated with fine copper particles were studied by compression, bending and tensile tests. The mechanical strength and apparent modulus, decreased with porosity. The porous copper samples with large pore sizes had better mechanical performance. The extended Mori-Tanaka model was used to predict the modulus and the predictions agreed well with the experimental data.
Electrofacies Characterization and Permeability Predictions in Carbonate Reservoirs: Role of Multivariate Analysis and Nonparametric Regression (1999)

Abstract We propose a two-step approach to permeability prediction that utilizes non-parametric regression in conjunction with multivariate statistical analysis. First we classify the well log data into electrofacies types.This classification does not require any artificial subdivision of the data population but follows naturally based on the unique characteristics of well log measurements reflecting minerals and lithofacies within the logged interval. A combination of principal component analysis, model-based cluster analysis and discriminant analysis is used to characterize and identify electrofacies types. Second, we apply non-parametric regression techniques to predict permeability using well logs within each electrofacies. Three non-parametric approaches are examined viz. alternating conditional expectations (ACE), generalized additive model (GAM) and neural networks (NNET) and the relative advantages and disadvantages are explored. We have applied the proposed technique to a highly heterogeneous carbonate reservoir in the Permian Basin, west Texas: Salt Creek Field Unit (SCFU). The results are compared with three other approaches to permeability predictions that utilize data partitioning based on reservoir layering, lithofacies information and hydraulic flow units. An examination of the error rates associated with discriminant analysis for uncored wells indicates that data classification based on electrofacies characterization is more robust compared to other approaches. For permeability predictions, the ACE model appears to be the best among the three non- parametric approaches.
Spam detection in online classified advertisements (2011)

Online classified advertisements have become an essential part of the advertisement market. Popular online classified advertisement sites such as Craigslist, Ebay Classifieds, and Oodle have attracted a huge number of posts and visits. Due to its high commercial potential, the online classified advertisement domain is a target for spammers, and this has become one of the biggest issues hindering further development of online advertisement. Therefore, spam detection in online advertisement is a crucial problem. However, previous approaches for Web spam detection in other domains do not work well in the advertisement domain. We propose a novel spam detection approach that takes into account the particular characteristics of this domain. Specifically, we propose a novel set of features that could strongly discriminate between spam and legitimate advertisement posts. Our experiments on a dataset derived from Craigslist advertisements demonstrate the effectiveness of our approach. In particular, the approach provides improvements of 55% in terms of F-1 score over a baseline that uses traditional features alone.
Characterization of the PSG11 Gene (1994)

The pregnancy-specific beta 1-glycoproteins (PSG) form the major group of proteins synthesized in the human placenta. There are over 30 proteins in the family, encoded by 11 genes located on chromosomes 19q13.1-13.3. The genes can be divided into three subgroups based on the C-terminal exons expressed. The subgroup 1 genes have been well characterized. In this study the organization and sequence of a complete, functional, subgroup 3 gene is described. It contains the C-terminal exons, Cw, Cr, and Cs, which are expected from the transcripts characterized. Down-stream from these exons are sequences homologous to the C-termini of the subgroup 1 type genes. This demonstrates that the subgroup 1, 2, and 3 genes are related via insertions/deletions. Comparison of the C-terminal sequences of the three subgroups of genes shows that the subgroup 2 and 3 genes are more closely related than, and are distinct from, the subgroup 1 genes.
Microbial degradation of quinoline and methylquinolines (1990)

Several bacterial cultures were isolated that are able to degrade quinoline and to transform or to degrade methylquinolines. The degradation of quinoline by strains of Pseudomonas aeruginosa QP and P. putida QP produced hydroxyquinolines, a transient pink compound, and other undetermined products. The quinoline-degrading strains of P. aeruginosa QP and P. putida QP hydroxylated a limited number of methylquinolines but could not degrade them, nor could they transform 2-methylquinoline, isoquinoline, or pyridine. Another pseudomonad, Pseudomonas sp. strain MQP, was isolated that could degrade 2-methylquinoline. P. aeruginosa QP was able to degrade or to transform quinoline and a few methylquinolines in a complex heterocyclic nitrogen-containing fraction of a shale oil. All of the quinoline- and methylquinoline-degrading strains have multiple plasmids including a common 250-kilobase plasmid. The 225-, 250-, and 320-kilobase plasmids of the P. aeruginosa QP strain all contained genes involved in quinoline metabolism.
Wnt3a-Mediated Formation of Phosphatidylinositol 4,5-Bisphosphate Regulates LRP6 Phosphorylation (2008)

The canonical Wnt-beta-catenin signaling pathway is initiated by inducing phosphorylation of one of the Wnt receptors, low-density lipoprotein receptor-related protein 6 (LRP6), at threonine residue 1479 (Thr1479) and serine residue 1490 (Ser1490). By screening a human kinase small interfering RNA library, we identified phosphatidylinositol 4-kinase type II alpha and phosphatidylinositol-4-phosphate 5-kinase type I (PIP5KI) as required for Wnt3a-induced LRP6 phosphorylation at Ser1490 in mammalian cells and confirmed that these kinases are important for Wnt signaling in Xenopus embryos. Wnt3a stimulates the formation of phosphatidylinositol 4,5-bisphosphates [PtdIns (4,5)P2] through frizzled and dishevelled, the latter of which directly interacted with and activated PIP5KI. In turn, PtdIns (4,5)P2 regulated phosphorylation of LRP6 at Thr1479 and Ser1490. Therefore, our study reveals a signaling mechanism for Wnt to regulate LRP6 phosphorylation.
Studies on the reduction of nitric oxide by carbon: the nitric oxide-carbon gasification reaction (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudies on the reduction of nitric oxide by carbon: the nitric oxide-carbon gasification reactionHsisheng Teng, Eric M. Suuberg, and Joseph M. CaloCite this: Energy Fuels 1992, 6, 4, 398–406Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992https://pubs.acs.org/doi/10.1021/ef00034a008https://doi.org/10.1021/ef00034a008research-articleACS PublicationsRequest reuse permissionsArticle Views406Altmetric-Citations141LEARN 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
Automatic chip placement: one solution, user-benefits, and future development (2002)

The author explores generic chip placement challenges and assembly options. A specific commercial solution for automated die bonding in the microelectronics marketplace, namely the MRSI-501 automated die placement system is described. The placement accuracy is +or-0.002 to 0.003 in and two degrees in theta. However, the same system places flip chips to within +or-0.0015 in. The system's throughput rate is 400-450 die per hour for vision-guided placements and 900 die per hour for direct pick and place. Developments in chip placement systems, including ultraprecision placement, are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Influences of the Non‐Covalent Interaction Strength on Reaching High Solid‐State Order and Device Performance of a Low Bandgap Polymer with Axisymmetrical Structural Units (2013)

A high organic field-effect transistor mobility (0.29 cm(2) V(-1) s(-1) ) and bulk-heterojunction polymer solar cell performance (PCE of 6.82%) have been achieved in a low bandgap alternating copolymer consisting of axisymmetrical structural units, 5,6-difluorobenzo-2,1,3-thiadiazole. Introducing the fluorine substituents enhanced intermolecular interaction and improved the solid-state order, which consequently resulted in the highest device performances among the 2,1,3-thiadiazole-quarterthiophene based alternating copolymers.
Facilitating effective HCI design meetings (1994)

Over several years we have participated as facilitators in many Human-Computer Interaction (HCI) design meetings.
Diurnal Phototropism in Solar Tracking Leaves of <i>Lavatera cretica</i> (1986)

On a clear day, leaf laminas of Lavatera cretica tracked the solar position throughout the day. The laminar azimuth did not diverge from the solar azimuth by more than 12 degrees from sunrise to sunset. Tracking of the solar elevation started 1 to 2 hours after sunrise and ceased 1 to 2 hours before sunset. On an overcast day, the laminas reoriented horizontally. After sunset, following a clear day, the laminas performed a nocturnal reorientation, with three well defined phases. During the initial phase the laminas relaxed their strained sunset-facing orientation to one perpendicular to their petioles. This equilibrium configuration was maintained throughout the following phase, which was apparently concerned with time-measuring. During the final phase, the laminas reoriented, before sunrise, to a position facing the direction of the anticipated sunrise. This directional information is phototropic and was retained for 3 to 4 diurnal cycles, probably in the pulvinus itself, which is the site of the response. Laminas of plants transferred from sunlight either to darkness, or to a simulated natural photoperiod under overhead illumination, were facing the originally anticipated direction of sunrise at the time of each of the three to four subsequent sunrises (after which they reverted to the dark orientation in darkness, or to the horizontal one with overhead illumination). Cotyledonary laminas required directional information for the nocturnal reorientation during 3 or 4 cycles of simulated sunrise to sunset transitions.
Texas Charter Schools: New Choices for Texas Families (2000)

(2000). Texas Charter Schools: New Choices for Texas Families. The Clearing House: A Journal of Educational Strategies, Issues and Ideas: Vol. 74, No. 2, pp. 64-69.
탑상형 공동주택의 평면구조가 내진성능에 미치는 영향 (2012)

In this study the seismic performance of the tower type apartment buildings with Y- and box-shaped plans. The spatial flexibility of the model structures was varied by replacing shear walls with columns. According to the nonlinear static and incremental dynamic analysis results the shear wall structure turned out to have largest overstrength factor. However the flat plate wall system and flat plate system also showed satisfactory performance against design level seismic load. The required amount of structural material was largest in the shear wall structure, and decreased as more and more shear walls were replaced with columns. The amount of re-bars increased significantly in the flat plate structure. Based on the analysis results, it was concluded that the flat plate wall system is the most economic structure system for tower type apartment buildings with proper earthquake load resisting capacity.
Normal and Malignant Cells Exhibit Differential Responses to Calcium Electroporation (2017)

Calcium electroporation may offer a simple general tool for anticancer therapy. Transient permeabilization of cancer cell membranes created by applying short, high-voltage pulses in tumors enables high calcium influxes that trigger cell death. In this study, we compared the relative sensitivity of different human tumor models and normal tissues to calcium electroporation. Plasma membrane Ca<sup>2+</sup>-ATPase (PMCA) protein expression was confirmed <i>in vitro</i> in all cancer cell lines and normal primary dermal fibroblasts studied. In all tumor types tested <i>in vivo</i>, calcium electroporation effectively induced necrosis, with a range of sensitivities observed (36%-88%) 2 days after treatment. Necrosis was induced using calcium concentrations of 100-500 mmol/L and injection volumes 20%-80% of tumor volume. Notably, only limited effects were seen in normal tissue. Calcium content increased >7-fold in tumor and skin tissue after calcium electroporation but decreased in skin tissue 4 hours after treatment to levels comparable with untreated controls, whereas calcium content endured at high levels in tumor tissue. Mechanistic experiments <i>in vitro</i> indicated that calcium influx was similar in fibroblasts and cancer cells. However, we observed decreased PMCA expression in cancer cells compared with fibroblasts, offering a potential explanation for the different calcium content in tumor cells versus normal tissues. Overall, our results suggest that calcium electroporation can elicit a rapid and selective necrosis of solid tumors, with limited deleterious effects on surrounding normal tissues. <i>Cancer Res; 77(16); 4389-401. ©2017 AACR</i>.
Rituximab infusion induces NK activation in lymphoma patients with the high-affinity CD16 polymorphism (2011)

Natural killer (NK) cell-mediated antibody-dependent cellular cytotoxicity involving FcγRIIIa (CD16) likely contributes to the clinical efficacy of rituximab. To assess the in vivo effects of CD16 polymorphisms on rituximab-induced NK activation, blood was evaluated before and 4 hours after initiation of the initial dose of rituximab in 21 lymphoma subjects. Rituximab induced NK activation and a drop in circulating NK-cell percentage in subjects with the high-affinity [158(VF/VV)] but not the low-affinity [158(FF)] CD16 polymorphism. There was no correlation between NK-cell activation or NK-cell percentage and polymorphisms in CD32A, C1q, or CH50. We conclude that NK activation occurs within 4 hours of rituximab infusion in subjects with the high-affinity CD16 polymorphism but not those with the low-affinity CD16 polymorphism. This finding may help explain the superior clinical outcome seen in the subset of high-affinity CD16 polymorphism lymphoma patients treated with single-agent rituximab.