gebhart/patrepeval huggingface dataset:
Imaging of Acute Cervical Spine Trauma: When to Obtain Which Modality (2013)

The current knowledge and evidence around the merits of different imaging modalities for the evaluation of cervical spine injuries are reviewed. The National Emergency X-Radiography Use Study, Canadian Cervical Spine rule, and American College of Radiology appropriateness criteria are reviewed and summarized. The advantages and disadvantages of available imaging modalities for selected cervical spine injury patterns are also illuminated to simplify the decision making on when to use which modality.
Long-haul coherent optical fiber communication systems using optical amplifiers (1991)

Studies on long-haul coherent optical fiber communication systems with in-line optical amplifier repeaters are made theoretically and experimentally. By theoretical calculation it was found that coherent systems can achieve wider dynamic range for an amplifier input power as compared with the intensity-modulation direct-detection (IM-DD) systems. The feasibility of such systems using traveling-wave semiconductor laser amplifiers (TWSLAs) and erbium-doped fiber amplifiers (EDFAs) was investigated, and 546 km, 140 Mb/s CPFSK transmission using TWSLAs and 1028-km, 560-Mb/s CPFSK transmission using EDFAs were successfully demonstrated.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Severe Plastic Deformation under High Pressure: Upsizing Sample Dimensions (2022)

It is well known that severe plastic deformation (SPD) produces ultrafine-grained structures in bulk metallic materials. The SPD process becomes more versatile when it is performed under high pressure as high-pressure torsion (HPT) and high-pressure sliding (HPS). Not only the grain size is more refined but also the process is applicable to hard-to-deform materials such as intermetallics, semiconductors and ceramics, leading to enhancement of functional properties as well as structural properties. The major drawback is that the sample size is small so that the applicability is limited to a laboratory scale and it is an important subject to increase the sample dimensions. This paper presents an overview describing efforts devoted thus far to deal with this upscaling issue.
What Environmental Factors Are Important Determinants of Structure, Species Richness, and Abundance of Mosquito Assemblages? (2010)

Despite numerous ecological studies with mosquitoes, it remains unclear what environmental factors are the most important determinants of structure, species richness, and abundance of mosquito assemblages. In the current study, we investigated relations between these characteristics of mosquito larvae assemblages and environmental factors in a large set of different habitats. Particular objectives were (1) to rank the factors regarding their explanatory power, and (2) to quantify the contribution of major sets of factors such as habitat spatial/hydrological (H), water physico-chemical (W), and aquatic vegetation characteristics (V). Variance partitioning and forward selection based on ordinations and multiple regressions were applied to the data set on 79 water-bodies in southwestern Siberia covering a wide gradient of environmental characteristics and diverse mosquito assemblages. The results showed that richness and abundance inter-correlated poorly (r2 = 0.21), and assemblage structure, richness, and abundance depended on different sets of predictors. Explanatory importance of the three sets of environmental factors differed among the three assemblage variables: H, W, and V had equal importance for assemblage structure, while richness and abundance depended on H and V more than on W. The study showed that contradiction between the aims of conservation (support biodiversity) and mosquito control (reduce mosquito abundance) can be avoided, as relevant environmental factors can be used to define habitats with high richness and low abundance (i.e., high conservation value and low nuisance and disease transmission risk) for conservation activities, and conversely for control measures.
Long-distance donor heart procurement using an innovative cold static storage system (2023)

The global lack of donor shortage poses a major limitation for heart transplantation. New concepts with expanded donor inclusion criteria comprise extended transport distances and prolonged ischemic times with the aim of reaching a larger number of potential donors. Recent developments in cold storage solutions may allow more donor hearts with prolonged ischemic times to be use for transplantation in the future. We present our experience during a long-distance donor heart procurement with the longest reported transport distance and transport time in the current literature. This was made possible through the use of SherpaPak™, an innovative cold storage system which allows for controlled temperatures during transportation.
Flexural strengthening of RC slabs with nonprestressed and prestressed CFRP strips using EBROG method (2020)

This paper proposes a fully nonmetallic system for strengthening RC one-way slabs with prestressed CFRP composites. The flexural behaviors of RC slabs strengthened with nonprestressed and prestressed CFRP strips were compared through four-point bending tests. The externally bonded reinforcement on grooves (EBROG) method was utilized to delay premature debonding of the CFRP composites and was compared with conventional externally bonded reinforcement (EBR). The experimental results indicated a significant enhancement in slabs flexural performance of slabs that were strengthened via the EBROG method and the novel anchorage system. The nonprestressed and prestressed CFRP plates attached using the EBROG method increased the bending capacity by 34% and 77%, respectively, compared with the nonprestressed EBR CFRP plate. Furthermore, the maximum CFRP strain reached 8.9‰ for the nonprestressed EBROG CFRP strip, whereas that for the nonprestressed EBR CFRP strip was only 5.9‰. Thus, the EBROG method delayed CFRP debonding and increased the strain in the reinforcement by 50% compared with the EBR method. In the prestressed CFRP strip, the strain reached 12.4‰ prior to the debonding, confirming the high efficiency of the proposed strengthening system.
Sol-gel synthesis and characterization of samarium and manganese substituted calcium hydroxyapatite, Ca10(PO4)6(OH)2 (2016)

Sol-gel synthesis and characterization of samarium and manganese substituted calcium hydroxyapatite, Ca10(PO4)6(OH)2 I. Bogdanoviciene, A. Beganskiene, A. Kareiva An aqueous sol-gel synthesis route has been developed to prepare samarium and manganese substituted calcium hydroxyapatite (Ca10-xMx(PO4)6(OH)2, CHAp:M) samples. The final products were obtained by calcination of the dry Ca(M)-P-O precursor gels for 5 h at 1000 […]
Human Secreted Attractin Disrupts Neurite Formation in Differentiating Cortical Neural Cells In Vitro (2002)

Mutations at the Atrn locus that encodes a transmembrane protein with a large ectodomain are responsible for a juvenile-onset neurodegeneration manifest as hypomyelination and cerebral vacuole development in several rodent species. In addition to a membrane isoform, the human Atm locus generates by alternative splicing a secreted form corresponding to the entire ectodomain that then circulates at high concentration in the periphery, released in part by activated T lymphocytes. We report here that the secreted form mRNA is downregulated throughout representative discrete regions of the human brain while membrane attractin mRNA is well represented, resulting in the apparent absence of secreted attractin protein in cerebrospinal fluid (CSF). Transcription of attractin secreted form mRNA is strongly downregulated upon differentiation of a human cortical neuron-derived cell line (HCN-1A) to a mature neuron phenotype in response to nerve growth factor. Recombinant secreted attractin disrupts neurite formation by differentiated HCN-1A cells, resulting in higher levels of branching with shorter processes. This effect is duplicated by anti-attractin and by human serum but not by human serum depleted of attractin or by CSF We propose that inappropriate expression of secreted attractin in the CNS blocks membrane attractin function and that its presence, either by leakage from the periphery, aberrant transcription, or release from inflammatory foci may affect neuron extracellular interactions leading to neurodegeneration in the human.
Reduction of Mutual Coupling in a Microstrip Patch Array Fed by a Triplate Waveguide with EBG Elements (2006)

This letter presents mutual coupling reduction in an E-plane arranged microstrip patch array fed by a triplate waveguide. Five mushroom-like electromagnetic band-gap (EBG) elements arranged in one column are embedded both between two radiating patches and between the feeding lines for suppression of the surface wave and the parallel plate mode, respectively. Validity of the proposed EBG elements is confirmed by the measurement.
A Glucocorticoid Sensitive Biphasic Rhythm of Testosterone Secretion (2009)

Studies of the hypothalamic-pituitary-adrenal (HPA) axis and the hypothalamic-pituitary-testicular (HPT) axis have revealed a reciprocal relationship between these two endocrine pathways. In rats, for example, disruption of the HPT axis alters the circadian secretion of corticosterone. Stress, on the other hand, can have varying effects on testosterone secretion in both rats and humans. Furthermore, in contrast to humans, where several pulses of testosterone secretion can be detected across the 24-h period with the largest in the morning, rats appear to exhibit a diurnal rhythm of testosterone secretion. In the present study, we used an automated blood sampling system to investigate the true circadian pattern of testosterone secretion under basal conditions and investigated how this responds to changes in levels of circulating corticosteroids. Analysis of plasma testosterone revealed the expected bimodal pattern of basal testosterone secretion. The two secretory episodes were 12.59 h +/- 41 min apart and 4.04 h +/- 16 min long, with one in the light phase and the other in the dark phase of the cycle. Interestingly, when both testosterone and corticosterone diurnal profile were compared, we found that the circadian rise in plasma corticosterone levels falls neatly between the two testosterone secretory episodes. Treatment of rats with the synthetic glucocorticoid methylprednisolone in their drinking water abolished the normal bimodal profile of testosterone secretion. These rats show transient pulses of testosterone throughout the 24 h, but no circadian pattern. By contrast, adrenalectomised rats maintain their bimodal circadian pattern, suggesting that an intact HPA axis is not necessary for generation of the endogenous HPT rhythm. Thus, although the circadian rhythm of testosterone does not depend on normal HPA function, increased levels of glucocorticoids can abolish normal HPT rhythmicity.
Measurement of photonic band structure in a two-dimensional periodic dielectric array (1992)

The photonic band structure in a two-dimensional dielectric array is investigated using the coherent microwave transient spectroscopy (COMITS) technique. The array consists of alumina-ceramic rods arranged in a regular square lattice. The dispersion relation for electromagnetic waves in this photonic crystal is determined directly using the phase sensitivity of COMITS. The experimental results are compared to theoretical predictions obtained using the plane-wave expansion technique. Configurations with the electric field parallel and perpendicular to the axis of the rods are investigated.
Motion of Distorted Vortex Rings (1971)

Investigation has been made of the motion of vortex rings deformed from circular shape. A theoretical calculation of their shapes on the basis of the localized induction equation for a very thin vortex filament is made and is compared with observation of distorted smoke rings produced in the laboratory, using smoke of tobacco. Observations are also reported of fusion of two smoke rings into and splitting of very much distorted smoke rings.
The combined sensate radial forearm and iliac crest free flaps for reconstruction of significant glossectomy‐mandibulectomy defects (1992)

The loss of motor and sensory function of the tongue following ablative surgery has a devastating effect on oral function. At the present time, there is no way to restore lost tongue musculature following partial glossectomy. The use of sensate cutaneous flaps has been shown to restore sensory feedback to reconstructed areas of the oral cavity. No single composite flap supplies a sensate soft-tissue component together with an osseous component of sufficient bone stock for functional mastication. In this article, the combination of the radial forearm free flap with the iliac crest osteocutaneous or osteomyocutaneous free flap is reported. The radial forearm free flap was used to resurface the resected portion of the tongue to provide maximum mobility and sensation. The lingual nerve was the recipient nerve for anastomosis to the antebrachial cutaneous nerves in all but one case. The iliac bone was used to reconstruct the mandible, with the iliac skin paddle or the internal oblique muscle used to reconstruct the neoridge. This combination of flaps was used in 10 patients. There was one flap failure due to vascular kinking from "piggybacking" the iliac crest to the distal end of the radial forearm flap. As a result, the use of two separate sets of recipient vessels is now advocated. Although a single composite free flap offers an excellent form of oromandibular reconstruction in most cases, it has been shown that oral function deteriorates when large areas of anesthesia are present in the oral cavity. We believe that this combination of two free flaps offers an opportunity for superior function in select patients with significant glossectomy and/or large mucosal defects.
New powder diffraction data for dimorphic KHF 2 (1996)

Potassium hydrogen fluoride KHF 2 is tetragonal at room temperature: a =5.667(1) Å, c =6.795(1) Å, d =2.38, Z =4, space group I 4/ mcm (No. 140). It gives a polymorphic transition at 196 °C to a cubic form: a =6.435(1) Å, Z =4, space group Fm 3 m , melts at 239 °C, and then dissociates into gaseous HF and solid KF.
Accurate First Principles Calculation of Molecular Charge Distributions and Solvation Energies from Ab Initio Quantum Mechanics and Continuum Dielectric Theory (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAccurate First Principles Calculation of Molecular Charge Distributions and Solvation Energies from Ab Initio Quantum Mechanics and Continuum Dielectric TheoryDavid J. Tannor, Bryan Marten, Robert Murphy, Richard A. Friesner, Doree Sitkoff, Anthony Nicholls, Barry Honig, Murco Ringnalda, and William A. Goddard IIICite this: J. Am. Chem. Soc. 1994, 116, 26, 11875–11882Publication Date (Print):December 1, 1994Publication History Published online1 May 2002Published inissue 1 December 1994https://pubs.acs.org/doi/10.1021/ja00105a030https://doi.org/10.1021/ja00105a030research-articleACS PublicationsRequest reuse permissionsArticle Views2339Altmetric-Citations973LEARN 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
SNR Threshold for Distributed Antenna Systems in Cloud Radio Access Networks (2015)

A distributed antenna system (DAS) architecture is a key enabler for Cloud Radio Access Networks (CRAN) where geographically separated base stations are connected to a centralized processing and decision making unit. Many schemes have been proposed to leverage Fractional Frequency Reuse (FFR) and co- ordinated joint transmission between base stations to improve cell-edge performance for static network deployments. In this paper, we investigate dynamic decision making that whether co-ordinated joint transmission should be selected in the downlink of a FFR-aided DAS. We derive the transmitting Signal-to- Noise-Ratio (SNR) threshold for making these decisions and we show that this SNR plays a key role in the FFR- aided DAS analysis and can be used as a guide in the evaluation of DAS performance.
Kinetics of atoms and metastable molecules in oxygen plasmas revisited: an experimental study (2017)

International audience
Attaching nanocrystals to a dielectric microsphere: a quantum dot microcavity with extremely high Q-factors (2003)

We have developed a novel quantum dot microcavity by attaching ZnS-capped CdSe nanocrystals to a fused silica microsphere. The composite microcavity system features extremely small mode volume and a Q-factor approaching 10/sup 7/. It allows us to separately engineer electronic and photonic confinement and opens up a new avenue for investigating laser emission and strong light-matter coupling at the mesoscopic level of a single QD and for realizing quantum logic gates based on cavity QED. We have investigated the mode structure of the composite microcavity system by putting the microspheres in contact with a high index prism to couple whispering gallery modes (WGM) out of the microsphere. A portion of photoluminescence spectrum of the WGMs is shown where the CdSe nanocrystals are excited above the band gap.
Design and Interaction Interface using Augmented Reality for Smart Manufacturing (2018)

In this paper, we apply Augmented Reality (AR) technologies to develop a design and interaction interface for Smart Manufacturing (SmartMFG). This work is motivated by the lack of appropriate human-machine-interaction (HMI) tools to support interaction and customization in SmartMFG environment. Trying to address this research problem, we hypothesize that AR-based design interfaces that communicate with Machine Control Unit (MCU) directly will increase the degree of interaction and the complexity of instructions performed in Manual Data Input (MDI) systems. To test this hypothesis, we developed a prototyping system consisting of an AR-tablet device as the input interface and an Ultimaker 3 printer as the machine tool. Firstly, this AR-based system has sensing, design and control capabilities to interact and communicate with the machine tool via Wifi. Secondly, a set of sketch-based computational tools is developed for users to design shapes on existing objects easily and efficiently within the AR environment. Finally, The customized design is converted to machine code, which is also customized based on the machine tool and the registration of the virtual model and the existing object. We tested our system by designing two customized shapes onto an existing shape in the AR environment and generating the G-code to control the printer to fabricate them onto the physical object.
Expression of Cyclooxygenase-2 Is Regulated by Glycogen Synthase Kinase-3β in Gastric Cancer Cells (2005)

Cyclooxygenase-2 (COX-2) expression is a marker of poor prognosis in gastric cancer patients, and its inhibition suppresses gastric tumorigenesis in experimental animal models. The mechanism that leads to COX-2 overexpression in this tumor type is unknown. We have now shown that inhibition of phosphatidylinositol 3-kinase by LY294002 suppresses both basal and phorbol myristate acetate-induced COX-2 expression in TMK-1 and MKN-28 gastric cancer cells. Furthermore, inhibition of glycogen synthase kinase-3beta (GSK-3beta) by SB415286 induced expression of COX-2 mRNA and protein as well as the enzyme activity in the gastric cancer cells. The effect of SB415286 was confirmed by the use of two additional GSK-3beta inhibitors, lithium chloride and SB216763. SB415286 had a modest 1.6-fold stimulatory effect on a 2-kb COX-2 promoter reporter construct, but more importantly, it was shown to block the decay of COX-2 mRNA. In contrast to modulation of phosphatidylinositol 3-kinase/Akt/GSK-3beta pathway, inhibitors of mitogen-activated protein kinases (MEK 1/2, p38, JNK) or the mammalian target of rapamycin did not alter COX-2 expression in gastric cancer cells. Our data show that inhibition of GSK-3beta stimulates COX-2 expression in gastric cancer cells, which seems to be primarily facilitated via an increase in mRNA stability and to a lesser extent through enhanced transcription.
Diazoniapentaphenes. Synthesis from Pyridine‐2‐carboxaldehyde and Structural Verifications. (2004)

Abstract For Abstract see ChemInform Abstract in Full Text.
Supplemental Fig 3 from Multiple Aberrations of Chromosome 3p Detected in Oral Premalignant Lesions (2023)

Supplemental Fig 3 from Multiple Aberrations of Chromosome 3p Detected in Oral Premalignant Lesions
Identification of quantitative trait loci affecting reproduction in pigs. (2001)

The objective of this research was to identify chromosomal regions harboring QTL affecting reproduction in pigs. A three-generation resource population was developed by crossing low-indexing pigs from a randomly selected control line (C) with high-indexing pigs of a line selected for increased index of ovulation rate and embryonic survival (I). Differences between Lines I and C at Generation 10 were 6.7 ova and 3.3 fetuses at 50 d of gestation and 3.1 fully formed and 1.6 live pigs at birth. Phenotypic data were collected on F2 females, born in three replicates, for ovulation rate (n = 423), age at puberty (n = 295), litter size (n = 370), and number of nipples (n = 428). Litter-size data included number of fully formed, live, stillborn, and mummified pigs. Grandparent, F1, and F2 animals were genotyped for 151 microsatellite markers distributed across all 18 autosomes and the X chromosome. Genotypic data were available on 423 F2 females. Average spacing between markers was 19.3 Kosambi centimorgans. Calculations of logarithms of odds (LOD) scores were by least squares, and fixed effects for sire-dam combination and replicate were included in the models. Genome-wide significance level thresholds of 5% and 10% were calculated using a permutation approach. There was evidence (P < 0.05) for QTL affecting ovulation rate on SSC9, age at puberty on SSC7 and SSC8, number of nipples on SSC8 and SSC11, number of stillborn pigs on SSC5 and SSC13, and number of fully formed pigs on SSC11. There was evidence (P < 0.10) for additional QTL affecting age at puberty on SSC7, SSC8, and SSC12, number born live on SSC11, and number of nipples on SSC1, SSC6, and SSC7. Litter size is lowly heritable and sex-limited. Therefore, accuracy of selection for litter size may be enhanced by marker-assisted selection. Ovulation rate and age at puberty are laborious to measure, and thus marker-assisted selection may provide a practical and efficient method of selection.