gebhart/patrepeval huggingface dataset:
Reduced-Complexity Iterative Equalization for Severe Time-Dispersive MIMO Channels (2008)

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> In this paper, a reduced-complexity soft-interference-cancellation minimum mean-square-error (SIC-MMSE) iterative equalization method for severe time-dispersive multiple-input–multiple-output (MIMO) channels is proposed. To mitigate the severe time dispersiveness of the channel, a single carrier with cyclic prefix is employed, and the equalization is performed in the frequency domain. This simplifies the challenging problem of equalization in MIMO channels due to both the intersymbol interference (ISI) and the coantenna interference (CAI). The proposed iterative algorithm works in two stages. The first stage estimates the transmitted frequency-domain symbols using a low-complexity SIC-MMSE equalizer. The second stage converts the estimated frequency-domain symbols in the time domain and finds their means and variances to incorporate in the SIC-MMSE equalizer in the next iteration. Simulation results show the bit-/symbol-error-rate performance of the SIC-MMSE equalizer, with and without coding, for various modulation schemes. </para>
Modelling and simulation of a variable speed stand-alone generator system (2000)

Modelling and simulation studies for a diesel driven stand-alone power generating system are presented. A new control strategy for system operation, based on neural networks and fuzzy logic, is reported. Simulation has shown that the resulting controller provides high stability. The system has the advantages of being compact, reliable and cost effective.
ROTATIONALLY-RESOLVED C-H STRETCH OVERTONE SPECTROSCOPY IN SUBSTITUTED ACETYLENES EMBEDDED IN He CLUSTERS: INTERNAL VS EXTERNAL VIBRATIONAL RELAXATION (1998)

SHI-1 cells could engraft in the SCI-nu/nu mice, creating an efficient and reproducible experimental model of central nervous system leukemia (CNSL) and multiorgan infiltration. This experimental model may be useful for studies on the pathogenesis of CNSL.
Organogold chemistry. XIII. 1,8-Naphthyridine complexes of dimethylgold halides and pseudohalides. Simple case of fluxional behavior (1973)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrganogold chemistry. XIII. 1,8-Naphthyridine complexes of dimethylgold halides and pseudohalides. Simple case of fluxional behaviorHubert. Schmidbaur and Kailash C. DashCite this: J. Am. Chem. Soc. 1973, 95, 15, 4855–4860Publication Date (Print):July 1, 1973Publication History Published online1 May 2002Published inissue 1 July 1973https://pubs.acs.org/doi/10.1021/ja00796a015https://doi.org/10.1021/ja00796a015research-articleACS PublicationsRequest reuse permissionsArticle Views204Altmetric-Citations46LEARN 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
Design Concept of Cryogenic Falling Liquid Film Helium Separator (1986)

A design concept is developed for a cryogenic falling liquid film helium separator by clarifying the differences between this process and a cryogenic distillation column. The process characteristics are greatly improved by the idea of adding an H2 gas flow to a point near the upper end of the packed section: The flow rate of tritium lost from the top is kept extremely low (˜0.2 Ci/yr under the flow conditions of the Tritium Systems Test Assembly) with an adequately short packed section (˜1.4 m), and the column pressure is reduced to 1 atm. The addition causes no appreciable increase in the protium percentage (˜1%) in the bottom liquid flow.A design procedure applying the Colburn-Hougen method is proposed for determining specifications of the refrigerated section. It is shown that the presence of noncondensible helium requires a significantly larger heat transfer area mainly because the mass transfer resistance increases enormously as the condensation of hydrogen isotopes proceeds. Control schemes are also proposed: The tritium concentration in the top gas is controlled by the H2 gas flow rate. The pressure rise caused by an increase of the helium percentage within the refrigerated section, which cannot readily be eliminated by changing input specifications of the refrigerant gas, is avoided by increasing the top gas flow rate to release more helium from the top.
How to kill food cravings? Just a bite or the full portion (2011)

A food craving is an intense desire for a food, which is difficult to resist. Studying food cravings is important, because food cravings influence snacking behavior and are believed to contribute to excessive eating and in this way to obesity. The experiment reported here explores the impact of providing participants with ‘just a bite’ of desirable, craving‐inducing foods versus a large amount of these foods. The expectation is that the portion size of a desirable food will impact craving tendencies and appetite at different points in time. Participants were randomly assigned to one of the two conditions where they were presented with small versus large portions of chocolate chips, apple pie, and potato chips. Participants were asked to report their appetite and cravings for those foods before eating, immediately after eating, and 20 minutes after eating. Compared to before eating, cravings were significantly reduced 20 minutes after eating, all Fs > 16.2, ps <.001. Compared to before eating, appetite was also significantly reduced 20 minutes after eating, F > 6.5, p =.002. Importantly, these effects were consistent across the two conditions, ps >.44, suggesting that simply eating just a bite of food, rather than full of food, is enough to reduce food cravings. Marie Curie International Outgoing Fellowship of second author within the 7th European Community Framework Programme.
ChemInform Abstract: Imidazo(4,5‐e)benzisoxazole‐2,1 Derivatives and Synthesis of Substituted Benzimidazoles on Their Base. (1987)

Abstract The reaction of benzyl cyanide (II) with the 5‐nitrobenzimidazoles (I) produces the imidazo(4,5‐e)benzisoxazoles (III) which are reduced to the 1,2‐disubstituted 4‐benzoyl‐5‐aminobenzimidazoles (IV).
Relaxation of deuterons in perdeuterated tetracosane (1980)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRelaxation of deuterons in perdeuterated tetracosaneK. Seidman, J. F. McKenna, S. E. Emery, G. B. Savitsky, and A. L. BeyerleinCite this: J. Phys. Chem. 1980, 84, 8, 907–910Publication Date (Print):April 1, 1980Publication History Published online1 May 2002Published inissue 1 April 1980https://pubs.acs.org/doi/10.1021/j100445a023https://doi.org/10.1021/j100445a023research-articleACS PublicationsRequest reuse permissionsArticle Views22Altmetric-Citations1LEARN 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
An anatomical, phytochemical and ultrastructural characterization of the ‘elastic threads’ of Maytenus acuminata (1987)

It was found that the characteristic elastic threads obtained on breaking and subsequent pulling apart of tissue of Maytenus acuminata (L.f.) Loes, although always associated with vascular tissue, are not the elastic thickening of xylem elements. The threads consist of E-1,4-polyisoprene and, in both the stem and leaf, are produced from laticifer-like cells. Polyisoprene, which occurs to a greater extent in the leaves than the stem of this species, is found in the cytoplasm of most cell types including the sieve elements of the phloem.
Next-Generation Sequencing for Determining the Effect of Arginine on Human Dental Biofilms Using an In Situ Model (2021)

Oral biofilms are associated with caries, periodontal diseases, and systemic diseases. Generally, antimicrobial therapy is used as the first line of treatment for infectious diseases; however, bacteria in biofilms eventually develop antibiotic resistance. This study aimed to apply our in situ biofilm model to verify whether an arginine preparation is useful for plaque control. Ten healthy subjects who did not show signs of caries, gingivitis, or periodontitis were recruited. The dental biofilms from the subjects were obtained using our oral device before and after gargling with arginine solution for 4 weeks. We found that 8% arginine solution significantly increased the concentration of ammonium ions (NH<sub>4</sub> <sup>+</sup>) in vitro and in vivo in saliva (<i>p</i> < 0.05) and decreased the proportions of the genera <i>Atopobium</i> and <i>Catonella</i> in vivo. However, the viable count was unaffected by the mouthwash. Further, oral populations of the genera <i>Streptococcus</i> and <i>Neisseria</i> tended to increase with the use of arginine. Therefore, we concluded that using an 8% arginine solution decreased the NH<sub>4</sub> <sup>+</sup> concentration in the oral cavity without affecting the number of viable bacteria, and that the diversity of oral bacterial flora changed. We suggest that arginine might help prevent mature biofilm formation.
Structural and segregation analysis of the type II collagen gene (COL2A1) in some heritable chondrodysplasias. (1988)

Seventy-seven persons with a variety of heritable chondrodysplasias were screened for gross rearrangements of the structural gene encoding the major cartilage collagen, collagen II. None was found. Segregation of the locus (COL2A1) was studied in 19 pedigrees using three restriction site dimorphisms (shown by PvuII, HindIII, and BamHI) and a length polymorphism as linkage markers. Discordant segregation between COL2A1 and the mutant locus was seen in pedigrees with multiple epiphyseal dysplasia, autosomal recessive spondyloepiphyseal dysplasia tarda, hypochondroplasia, pseudoachondroplasia, diaphyseal aclasis, and trichorhinophalangeal syndrome. One pedigree with diastrophic dysplasia was weakly concordant. Autosomal dominant spondyloepiphyseal dysplasia tarda and metaphyseal chondrodysplasia (type Schmid) were not informative. We conclude that mutations of the collagen II gene are not a common feature of the heritable chondrodysplasias. Since the chondrocyte binding protein, chondrocalcin, is also encoded at COL2A1 our conclusions apply equally to this gene.
<title>Applications of room-temperature tryptophan phosphorescence to the study of protein structure and dynamics</title> (1992)

Most proteins are capable of emitting tryptophan phosphorescence at room temperature in deoxygenated aqueous solutions. Like fluorescence, phosphorescence intensities and lifetimes are useful for studying protein structure. Phosphorescence differs from fluorescence, however, in several ways. Phosphorescence occurs on a time-scale of msec-sec, while fluorescence decays in nanoseconds. Second, the phosphorescence decay of a single tryptophan is nearly monoexponential, making assignments of decay components to individual residues possible. Finally, phosphorescence is a more sensitive probe of the local tryptophan environment, as the lifetime can change by orders of magnitude depending on site rigidity and other factors. The authors describe applications of phosphorescence spectroscopy for protein study. In particular, tryptophan phosphorescence quenching by resonance energy transfer to freely diffusing acceptors was used to show that Trp 109 is the origin of phosphorescence in E. coli alkaline phosphatase (AP). By following changes in the emissive lifetime of this deeply buried residue, the presence of an enzymatically active but structurally modified intermediate state is detected in the unfolding of AP in high concentrations of Guanidine:HCl, and followed the kinetics of the decline in activity upon further unfolding. In addition to the new understanding of AP, the results of these experiments show that room temperature tryptophan phosphorescence is a powerful tool for the study of proteins.
A Case of Cowden Disease with a Thymic Cyst (2013)

Cowden病は，特徴的な皮膚粘膜病変と全身過誤腫性病変による多彩な臨床像を呈する稀な常染色体優性遺伝性疾患であり，中年期以降では高率に悪性腫瘍が合併することが知られている．今回われわれは，乳癌術後のCowden病患者に胸腺腫瘍，腺腫様甲状腺腫を合併し手術を施行した症例を経験したので報告する．症例は46歳女性．23歳時糖尿病治療中，顔面多発小丘疹，全身角化性丘疹を認めた．以前から消化管ポリープ，舌，咽頭乳頭腫症等を合併しており，38歳時鼻丘疹の切離標本と遺伝子解析により，Cowden病と診断された．45歳時左乳癌に対し乳房切除術を施行され，胸部CTで嚢胞性の前縦隔腫瘍および右肺結節影指摘された．PETで前縦隔に軽度集積あり，胸腺腫を疑い，同時に胸腺全摘+甲状腺全摘+肺部分切除術を施行した．病理組織診で多発胸腺嚢腫，腺腫様甲状腺腫，肺過誤腫と診断した．術後経過は良好で現在外来経過観察中である．
Transcriptional control of glyoxalase 1 by Nrf2 provides a stress-responsive defence against dicarbonyl glycation (2011)

Abnormal cellular accumulation of the dicarbonyl metabolite MG (methylglyoxal) occurs on exposure to high glucose concentrations, inflammation, cell aging and senescence. It is associated with increased MG-adduct content of protein and DNA linked to increased DNA strand breaks and mutagenesis, mitochondrial dysfunction and ROS (reactive oxygen species) formation and cell detachment from the extracellular matrix. MG-mediated damage is countered by glutathione-dependent metabolism by Glo1 (glyoxalase 1). It is not known, however, whether Glo1 has stress-responsive up-regulation to counter periods of high MG concentration or dicarbonyl stress. We identified a functional ARE (antioxidant-response element) in the 5'-untranslated region of exon 1 of the mammalian Glo1 gene. Transcription factor Nrf2 (nuclear factor-erythroid 2 p45 subunit-related factor 2) binds to this ARE, increasing basal and inducible expression of Glo1. Activators of Nrf2 induced increased Glo1 mRNA, protein and activity. Increased expression of Glo1 decreased cellular and extracellular concentrations of MG, MG-derived protein adducts, mutagenesis and cell detachment. Hepatic, brain, heart, kidney and lung Glo1 mRNA and protein were decreased in Nrf2-/- mice, and urinary excretion of MG protein and nucleotide adducts were increased approximately 2-fold. We conclude that dicarbonyl stress is countered by up-regulation of Glo1 in the Nrf2 stress-responsive system, protecting protein and DNA from increased damage and preserving cell function.
Studies of topological distributions of inclusive three- and four-jet events in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>p</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mi>p</mml:mi></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msqrt></mml:mrow><mml:mrow><mml:mrow><mml:mrow/></mml:mrow></mml:mrow><mml:mo>=</mml:mo><mml:mn>1800</mml:mn><mml:mn/></mml:math>GeV with the D0 detector (1996)

The global topologies of inclusive three- and four-jet events produced in $\overline{p}p$ interactions are described. The three- and four-jet events are selected from data recorded by the D0 detector at the Fermilab Tevatron Collider operating at a center-of-mass energy of $\sqrt{s}=1800$ GeV. The measured, normalized distributions of various topological variables are compared with parton-level predictions of tree-level QCD calculations. The parton-level QCD calculations are found to be in good agreement with the data. The studies also show that the topological distributions of the different subprocesses involving different numbers of quarks are very similar and reproduce the measured distributions well. The parton-shower Monte Carlo generators provide a less satisfactory description of the topologies of the three- and four-jet events.
Left-sided gallbladder with anomalies of the intrahepatic portal vein and anomalous junction of the pancreaticobiliary ductal system: a case report. (1996)

A 66-year-old man was admitted for an early cancer in the gastric corpus. At laparotomy, the gallbladder was located on the left side of the round ligament and attached to the lateral segment of the liver. This finding was compatible with a left-sided gallbladder. Postoperative ultrasonograms and portograms demonstrated anomalies of the intrahepatic portal vein as follows; The left umbilical portion and the posterior point of the portal branch were lacking. The posterior point was seen as an umbilical portion. An endoscopic retrograde cholangiopancreaticogram showed the cystic duct entering into the right side of the common bile duct confluent to the accessory pancreatic duct. A left-sided gallbladder unassociated with visceral inversion is a rare congenital anomaly. Forty-one cases have been reported in Japan, five with anomalies of the intrahepatic portal vein and two with anomalous junction of the pancreaticobiliary ductal system. To our knowledge, our patient is the only case of the left-sided gallbladder which both congenital anomalies.
High Rates of Transmission of and Colonization by <i>Streptococcus pneumoniae</i> and <i>Haemophilus influenzae</i> within a Day Care Center Revealed in a Longitudinal Study (2007)

Day care centers (DCCs) are unique settings where young children are at increased risk for colonization by pneumococci and Haemophilus influenzae. Although point prevalence studies in DCCs are frequent, only a few longitudinal studies on the dynamics of colonization have been published. We conducted a 1-year longitudinal study with 11 sampling periods on nasopharyngeal carriage of pneumococci and H. influenzae among 47 children who attended a single DCC. All isolates were antibiotyped and genotyped by pulsed-field gel electrophoresis. Pneumococci were also serotyped. Of the 414 samples obtained, 61.4% contained pneumococci, and 87% contained H. influenzae. Only 8.3% of the samples were negative for both species. Twenty-one pneumococcal clones and 47 H. influenzae clones were identified. Introduction of clones occurred during all year. Ninety-eight percent and 96% of all pneumococcal and H. influenzae isolates, respectively, belonged to clones shared by more than one child. Children were sequentially colonized with up to six pneumococcal clones (mean, 3.6) and five serotypes and nine H. influenzae clones (mean, 7.1). Clones with increased capacity for transmission and/or prolonged colonization were identified in both species. These two fitness properties appeared to be independent. In conclusion, among DCC attendees, a high rate of acquisition and turnover of strains was observed, and all children were overwhelmingly colonized by clones shared with others. DCCs are units where permanent introduction of new clones occurs, and attendees, as a whole, provide a pool of hosts where the fittest clones find privileged opportunities to persist and expand.
Thermoelectric properties of Ca/sub 3/Co/sub 4/O/sub 9/-based ceramics textured by templated grain growth method (2003)

We fabricated highly textured Ca/sub 3/Co/sub 4/O/sub 9/-based ceramics by using plate-like particles as a template in order to extract highly anisotropic thermoelectric properties. Plate-like powder and fine powder of (Ca/sub 2.7/Na/sub 0.15/Bi/sub 0.15/)Co/sub 4/O/sub 9/ were synthesized and wet-mixed at the ratio of 1:4. The slurry was tape-cast into a form with the platelets aligned parallel to the tape surface. The tapes were stacked, and sintered or hot-pressed at 1193 K. The resultant ceramics showed highly preferred orientation with the {001} plane parallel to the tape surface. The electrical conductivity in the direction of the ab-plane was improved to 1.8/spl times/10/sup 4/ S/m at 1073 K by the texture given. The maximum power factor reached 5.9/spl times/10/sup -4/ W/mK/sup 2/ at the same temperature.
Integration of SQUID Microscopy into FA Flow (2001)

Abstract Scanning superconducting quantum interference device (SQUID) microscopy using high-TC SQUID sensor has been slowly gaining acceptance in the failure analysis (FA) community as a number of silicon device manufacturers are applying the tool and technique to an ever-broadening spectrum of silicon technologies for detecting the location of leakage and short failures by imaging the current path through the die and package. This paper will present the application of scanning SQUID microscopy to short isolation on die and explore the integration of this technique into the FA flow. From the examples presented in this paper, it can be seen that die level short isolation has been possible even when the separation from SQUID sensor to current is about 800-900µm. Several potentially useful techniques that will increase the accuracy of locating the die level short nondestructively are also discussed.
Fabrication of p-Si/β-FeSi<sub>2</sub>/n-Si Double-Heterostructure Light-Emitting Diode by Molecular Beam Epitaxy (2005)

We have fabricated p-Si/β-FeSi 2 film/n-Si double-heterstructure (DH) light-emitting diodes (LEDs) on Si(111) substrates by molecular beam epitaxy (MBE). It was found that both the thickness of an undoped Si overlayer and subsequent annealing temperature were key parameters in preventing the aggregation of the β-FeSi 2 film and the successful formation of a Si/β-FeSi 2 film/Si DH LED on Si(111). A 1.6 µm electroluminescence (EL) was realized at room temperature (RT) at a current density higher than 78 A/cm 2 by increasing the thickness of the β-FeSi 2 active region from 90 nm to 250 nm, suggesting that there exist numerous defects at Si/β-FeSi 2 heterointerfaces.
Enkephalinases (1980)

Enkephalins can be degraded by a variety of peptidases. We have characterized several membrane-associated brain peptidases in an effort to determine which if any are concerned with the physiological inactivation of synaptically released enkephalin. We have distinguished two carboxyl-directed dipeptidylpeptidases, designated enkephalinase A1 and A2, that give rise to the Tyr-Gly-Gly fragment. Both enzymes are physically separable from angiotensin converting enzyme. Regional variations in enkephalinase A1 activity and opiate receptors are similar. A novel amino-terminal-directed dipeptidylpeptidase, enkephalinase B, which generates Tyr-Gly, has been identified. All of these enzymes as well as aminopeptidase have been solubilized from brain membranes by detergent treatment and have been mutually resolved by DEAE column chromatography. Enkephalinase A1 has been purified 1500-fold, to apparent homogeneity.