gebhart/patrepeval huggingface dataset:
Current measurements from autonomous underwater gliders (2008)

We consider the potential for making current measurements from gliders, and present data from a deployment in early 2007 of 1000m Slocum electric gliders in the North West Mediterranean Sea. Three types of current measurement are considered. First, by comparing the difference between successive GPS positions, obtained when the glider surfaces, and dead-reckoned displacements when the glider is submerged, it is possible to estimate depth averaged horizontal currents and also surface drift. Second, our gliders were equipped with Conductivity Temperature Depth sensors, which provided data used to calculate geostrophic horizontal velocity. Third, from the measured rate of change of pressure it is possible to quantify the vertical water velocity as the difference between the measurement and the expected vertical motion. The latter two both require a model of the glider motion, which we outline. Horizontal currents of the order of 30 cm/s were measured in the westward flowing Northern Current off the south coast of France, with a width and transport comparable with previous observations using different technologies. The accuracy of the depth-averaged currents in magnitude and direction was limited by the accuracy of the measured heading of the glider. Measurements of vertical velocity were made during a time of active convection when the magnitude of the vertical motion was up to 10 cm/s. We estimate that the accuracy of the calculated velocity was of the order of 1 cm/s.
Dual-reflectarray antenna for bidirectional satellite links in Ku-band (2011)

This paper describes the preliminary design of a Ku-band antenna based on a dual planar reflector configuration that provides electronic beam scanning in a limited angular range. The antenna is characterized by its compact optics and simplicity to be folded and deployed. The system comprises a passive reflectarray as sub-reflector and a reconfigurable reflectarray with 1-bit electronic control as main reflector. The antenna is designed to generate a focused beam in both Rx and Tx frequency bands for Ku-band satellite links, including electronic pointing within a limited angular range.
Galanin antagonizes acetylcholine on a memory task in basal forebrain-lesioned rats. (1988)

Galanin coexists with acetylcholine in medial septal neurons projecting to the ventral hippocampus, a projection thought to modulate memory functions. Neurochemical lesions of the nucleus basalis-medial septal area in rats impaired choice accuracy on a delayed alternation t-maze task. Acetylcholine (7.5 or 10 micrograms intraventricularly or 1 micrograms micro-injected into the ventral hippocampus) significantly improved performance in the lesioned rats. Atropine (5 mg/kg intraperitoneally or 10 micrograms intraventricularly), but not mecamylamine (3 mg/kg intraperitoneally or 20 micrograms intraventricularly), blocked this action of acetylcholine, suggesting involvement of a muscarinic receptor. Galanin (100-500 ng intraventricularly or 200 ng into the ventral hippocampus) attenuated the ability of acetylcholine to reverse the deficit in working memory in the lesioned rats. The antagonistic interaction between galanin and acetylcholine suggests that endogenous galanin may inhibit cholinergic function in memory processes, particularly in pathologies such as Alzheimer disease that involve degeneration of basal forebrain neurons.
Nano-Dynamic Behavior of Polymer Matrix CNT Composites (2004)

In order to understand the dynamic behavior of polymer matrix carbon nanotube (CNT) composites, modification and the destructive action of a CNT itself and CNT which exists in resin are examined with the dynamic action observation using the nano probe TEM (Transmission Electron Microscope). In has been considered that it is quite difficult to fracture CNT by bending deformation. However, it is revealed in this test that MWCNT is fractured by strong bending. It is also found that a crack arises by repeating buckling by compression. Moreover, it is observed in this test in the composite material, that with progress of a minute crack, MWCNTs fell out from matrix polymer in the nano-tensile test.
Reference wanted (1915)

Reference wanted Get access A. T. W. A. T. W. Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume s11-XI, Issue 267, 6 February 1915, Page 109, https://doi.org/10.1093/nq/s11-XI.267.109c Published: 06 February 1915
Evaluation of anal carcinoma screening in male and female HIV patients at an interdisciplinary HIV therapy centre (2019)

Our results demonstrate that smoking and two common STIs, condylomata acuminata and syphilis, are risk factors associated with advanced anal intraepithelial neoplasia (AIN) stages in our PLWH cohort. While further analysis is needed to determine diagnostic guidelines concerning AIN in PLWH, these results suggest that interdisciplinary lifestyle prevention strategies are required to reduce the risk factors for AIN in PLWH in an outpatient setting.
Assembly and turnover of neurofilaments in growing axonal neurites (2017)

Neurofilaments (NFs) are thought to provide stability to the axon. We examined NF dynamics within axonal neurites of NB2a/d1 neuroblastoma by transient transfection with green fluorescent protein-tagged NF-heavy (GFP-H) under the control of a tetracycline-inducible promoter. Immunofluorescent and biochemical analyses demonstrated that GFP-H expressed early during neurite outgrowth associated with a population of centrally-situated, highly-phosphorylated crosslinked NFs along the length of axonal neurites ('bundled NFs'). By contrast, GFP-H expressed after considerable neurite outgrowth displayed markedly reduced association with bundled NFs and was instead more evenly distributed throughout the axon. This differential localization was maintained for up to 2 weeks in culture. Once considerable neurite outgrowth had progressed, GFP that had previously associated with the NF bundle during early expression was irreversibly depleted by photobleaching. Cessation of expression allowed monitoring of NF turnover. GFP-H associated bundled NFs underwent slower decay than GFP-H associated with surrounding, less-phosphorylated NFs. Notably, GFP associated with bundled NFs underwent similar decay rates within the core and edges of this bundle. These results are consistent with previous demonstration of a resident NF population within axonal neurites, but suggest that this population is more dynamic than previously considered.
Spin filter behaviour of atomic NiO chains in Ni nanocontacts (2006)

Contrary to the antiferromagnetic and insulating character of bulk NiO, we show by means of ab initio quantum transport calculations that short atomic NiO chains suspended between Ni nanocontacts can become strongly spin-polarized conductors. They could thus serve as nanoscopic spin filters. Here we study the stability of our results against geometrical distortions of the atomic chain and the nanocontact.
Electronic effects on the regioselectivity in the reactions of thioallylic anions with carbonyl compounds. (1982)

In the reactions of lithium salts of allylic N, N-dimethyldithiocarbamates with p-substituted aromatic aldehydes and ketones, the α-selectivity increases as the substituent of the phenyl ring becomes more electron-attractive. The regioselectivity also depends upon the substitution pattern of the allylic moiety. The Hard and Soft Acid and Base (HSAB) approach was used to rationalize the results.
Frequency-Domain Receivers for Rate-1 Space-Time Block Codes (2009)

This paper considers iterative frequency-domain receivers for block transmission techniques with rate-1 Space Time Block Coding (STBC) for two and four transmit antennas using both Orthogonal Frequency Division Multiplexing (OFDM) and Single-Carrier (SC) schemes. The proposed receiver includes an interference canceller which enhances the performance of the non-orthogonal STBC scheme with 4 transmit antennas, allowing performances close to those of orthogonal codes. Our performance results show that combining STBC with block transmission techniques allows excellent performances.
Serum levels of progesterone and some of its metabolites including deoxycorticosterone after oral and parenteral administration (1984)

Single 100-mg doses of progesterone were given orally and as intramuscular injections to four women during the follicular phase of the menstrual cycle. After oral administration serum levels of progesterone increased rapidly to reach luteal phase values (mean maximum level 55.6 nM) within 1-4 h and were still elevated after 12 h. The serum concentrations of 20 alpha-hydroxy-4-pregnen-3-one showed a similar pattern while there were only minor transient changes in 17 alpha-hydroxyprogesterone concentrations. The serum levels of cortisol and 4-androstene-3,17-dione were unaffected. In comparison, after intramuscular administration values two to three times higher than by the oral route were achieved. A significant increase in serum deoxycorticosterone was recorded in all women. The mean ratio between the change in deoxycorticosterone and progesterone was increased after oral administration. Oral treatment with natural progesterone may develop into an attractive alternative to synthetic progestogens but the conversion of progesterone into a potent mineralocorticoid may be a potential disadvantage.
A proteogenomics approach integrating proteomics and ribosome profiling increases the efficiency of protein identification and enables the discovery of alternative translation start sites (2014)

Next-generation transcriptome sequencing is increasingly integrated with MS to enhance MS-based protein and peptide identification. Recently, a breakthrough in transcriptome analysis was achieved with the development of ribosome profiling (ribo-seq). This technology is based on the deep sequencing of ribosome-protected mRNA fragments, thereby enabling the direct observation of in vivo protein synthesis at the transcript level. In order to explore the impact of a ribo-seq-derived protein sequence search space on MS/MS spectrum identification, we performed a comprehensive proteome study on a human cancer cell line, using both shotgun and N-terminal proteomics, next to ribosome profiling, which was used to delineate (alternative) translational reading frames. By including protein-level evidence of sample-specific genetic variation and alternative translation, this strategy improved the identification score of 69 proteins and identified 22 new proteins in the shotgun experiment. Furthermore, we discovered 18 new alternative translation start sites in the N-terminal proteomics data and observed a correlation between the quantitative measures of ribo-seq and shotgun proteomics with a Pearson correlation coefficient ranging from 0.483 to 0.664. Overall, this study demonstrated the benefits of ribosome profiling for MS-based protein and peptide identification and we believe this approach could develop into a common practice for next-generation proteomics.
BLLIP North American News Text (2012)

Brown Laboratory for Linguistic Information Processing (BLLIP) North American News Text, Complete, LDC2008T13, isbn 1-58563-482-4. Contains a Penn Treebank-style parsing of approximately 24 million sentences from the North American News Text Corpus (LDC95T21). The North American News Text Corpus consists of English news text from the Los Angeles Times-Washington Post (1994-1997), the New York Times (1994-1996), Reuters News Service (1994-1996) and the Wall Street Journal (1994-1996).
Broadband Electro-optic Modulation using Low-loss PZT-on-Silicon Nitride Integrated Waveguides (2017)

Electro-optic modulation using a low-loss PZT-on-SiN waveguide platform is demonstrated. Using a ring resonator a V&amp;pi;L&amp;pi; of &amp;asymp; 1 Vcm is demonstrated. Small-signal measurements have demonstrated a bandwidth surpassing 25 GHz.
Las relaciones entre cáncer, tocotrienoles y aceite de palma (2010)

La mayoria de las enfermedades cronicas, incluido el cancer, son ocasionadas por inflamacion. Se han identificado entre los componentes del aceite de palma moduladores de la inflamacion, por lo que poseen potencial para controlar todas esas enfermedades. Es el caso de los y-tocotrienoles, de los cuales la oleaginosa Contiene en mas alto porcentaje que otras fuentes como el arroz, la avena, la cebada, el coco y el trigo. Los mismos operan como bloqueadores del NF-kB, un mediador importante en la inflamacion en la mayoria de las enfermedades, y cuya inhibicion puede prevenir o retrasar su inicio. En este articulo se presentan importantes hallazgos al respecto.
Non parametric granger causality EEG analysis of a visual 1-back-matching discrimination task in children (2015)

We study the dynamics of functional brain connectivity during a 1-back matching visual discrimination task in children using non parametric granger causality on EEG scalp recordings. Our analysis revealed enhanced activity mainly at alpha and theta bands. The Non Target condition resulted to denser networks with an apparent stronger coarse flow from occipital and parietal to central and frontal areas. Thus our analysis dissociated the Target vs. the Non Target condition in terms of the underlying causal functional connectivity both in time and frequency domains.
Advances in Well Completion Design: A New 3D Finite-Element Wellbore Inflow Model for Optimizing Performance of Perforated Completions (2002)

Abstract Overall productivity of perforated wells is influenced by a complex interaction of diverse factors, which include the length of the individual perforations, casing entrance hole diameter, perforation shot density, phase angle between the perforations, and the degree of damage inside and around the perforations. This paper presents a new wellbore inflow model that provides a more accurate means of quantifying the effects of these individual parameters on productivity and skin factor associated with perforated completions. With the introduction of API RP43 Section IV testing, in-situ perforating geometry is more accurately determined. To take advantage of this more complete perforation description, a new wellbore inflow model is developed. This model incorporates the cone-shaped perforation geometry with a tapered tip that has been observed in the laboratory for years. For the first time, the asymmetric, spiral distribution of perforations around a wellbore is modeled using a full 3- dimensional finite element model with over 30,000 elements in each perforation layer instead of the 2-dimensional and quasi 3-dimensional models used in the past. Productivity results from the new 3D model are compared with previous models to demonstrate the improvements to the inflow predictions. The effect of reservoir anisotropy on perforation design is also studied over a wide range of shot densities and phasing. Results that highlight the effect of reservoir anisotropy are presented in this work. The new results from a parametric study are used to build a database, which is used for optimizing perforation completion design.
Science goals and new mission concepts for future exploration of Titan’s atmosphere, geology and habitability: titan POlar scout/orbitEr and in situ lake lander and DrONe explorer (POSEIDON) (2022)

Abstract In response to ESA’s “Voyage 2050” announcement of opportunity, we propose an ambitious L-class mission to explore one of the most exciting bodies in the Solar System, Saturn’s largest moon Titan. Titan, a “world with two oceans”, is an organic-rich body with interior-surface-atmosphere interactions that are comparable in complexity to the Earth. Titan is also one of the few places in the Solar System with habitability potential. Titan’s remarkable nature was only partly revealed by the Cassini-Huygens mission and still holds mysteries requiring a complete exploration using a variety of vehicles and instruments. The proposed mission concept POSEIDON (Titan POlar Scout/orbitEr and In situ lake lander DrONe explorer) would perform joint orbital and in situ investigations of Titan. It is designed to build on and exceed the scope and scientific/technological accomplishments of Cassini-Huygens, exploring Titan in ways that were not previously possible, in particular through full close-up and in situ coverage over long periods of time. In the proposed mission architecture, POSEIDON consists of two major elements: a spacecraft with a large set of instruments that would orbit Titan, preferably in a low-eccentricity polar orbit, and a suite of in situ investigation components, i.e. a lake lander, a “heavy” drone (possibly amphibious) and/or a fleet of mini-drones, dedicated to the exploration of the polar regions. The ideal arrival time at Titan would be slightly before the next northern Spring equinox (2039), as equinoxes are the most active periods to monitor still largely unknown atmospheric and surface seasonal changes. The exploration of Titan’s northern latitudes with an orbiter and in situ element(s) would be highly complementary in terms of timing (with possible mission timing overlap), locations, and science goals with the upcoming NASA New Frontiers Dragonfly mission that will provide in situ exploration of Titan’s equatorial regions, in the mid-2030s.
Effects of a multi-strain probiotic (PrimaLac) on performance and antibody responses to Newcastle disease virus and infectious bursal disease virus vaccination in broiler chickens (2008)

The effects of the probiotic PrimaLac (Lactobacillus acidophilus, Lactobacillus casei, Enterococcus faecium and Bifidobacterium bifidium) was investigated on performance and immune responses to vaccination against Newcastle disease and infectious bursal disease in broiler chickens. Use of PrimaLac significantly (P<0.05) enhanced broiler performance by improving body weight and decreasing the feed conversion ratio. Although administration of the probiotic appeared to improve the antibody responses to Newcastle disease virus and infectious bursal disease vaccination, the antibody titres of the probiotic-treated group were not significantly different from those not receiving probiotics.
Publisher’s Note: Rare-Region-Induced Avoided Quantum Criticality in Disordered Three-Dimensional Dirac and Weyl Semimetals [Phys. Rev. X6, 021042 (2016)] (2016)

Received 6 July 2016DOI:https://doi.org/10.1103/PhysRevX.6.039901This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.© 2016 American Physical Society
Sphere decoding complexity exponent for decoding full rate codes over\n the quasi-static MIMO channel (2011)

In the setting of quasi-static multiple-input multiple-output (MIMO)\nchannels, we consider the high signal-to-noise ratio (SNR) asymptotic\ncomplexity required by the sphere decoding (SD) algorithm for decoding a large\nclass of full rate linear space-time codes. With SD complexity having random\nfluctuations induced by the random channel, noise and codeword realizations,\nthe introduced SD complexity exponent manages to concisely describe the\ncomputational reserves required by the SD algorithm to achieve arbitrarily\nclose to optimal decoding performance. Bounds and exact expressions for the SD\ncomplexity exponent are obtained for the decoding of large families of codes\nwith arbitrary performance characteristics. For the particular example of\ndecoding the recently introduced threaded cyclic division algebra (CDA) based\ncodes -- the only currently known explicit designs that are uniformly optimal\nwith respect to the diversity multiplexing tradeoff (DMT) -- the SD complexity\nexponent is shown to take a particularly concise form as a non-monotonic\nfunction of the multiplexing gain. To date, the SD complexity exponent also\ndescribes the minimum known complexity of any decoder that can provably achieve\na gap to maximum likelihood (ML) performance which vanishes in the high SNR\nlimit.\n
Social mix and urban policy (2011)

Abstract This chapter looks at what a social mix really means and the roles of 'scale', 'context' and 'theory' in understanding it.
Enhanced Detection of Blood Flow in the Normal Canine Prostate Using an Ultrasound Contrast Agent (2000)

NC100100 significantly improves the detection of blood flow in the normal canine prostate and allows more accurate depiction of the vascular architecture of the prostate.
Evidence for phosphorylation and oligomeric assembly of presenilin 1 (1997)

Pathogenic mutations in presenilin 1 (PS1) are associated with approximately 50% of early-onset familial Alzheimer disease. PS1 is endoproteolytically cleaved to yield a 30-kDa N-terminal fragment (NTF) and an 18-kDa C-terminal fragment (CTF). Using COS7 cells transfected with human PS1, we have found that phorbol 12, 13-dibutyrate and forskolin increase the state of phosphorylation of serine residues of the human CTF. Phosphorylation of the human CTF resulted in a shift in electrophoretic mobility from a single major species of 18 kDa to a doublet of 20-23 kDa. This mobility shift was also observed with human PS1 that had been transfected into mouse neuroblastoma (N2a) cells. Treatment of the phosphorylated CTF doublet with phage lambda protein phosphatase eliminated the 20- to 23-kDa doublet while enhancing the 18-kDa species, consistent with the interpretation that the electrophoretic mobility shift was due to the addition of phosphate to the 18-kDa species. The NTF and CTF eluted from a gel filtration column at an estimated mass of over 100 kDa, suggesting that these fragments exist as an oligomerized species. Upon phosphorylation of the PS1 CTF, the apparent mass of the NTF- or CTF-containing oligomers was unchanged. Thus, the association of PS1 fragments may be maintained during cycles of phosphorylation/dephosphorylation of the PS1 CTF.
Syngeneic anti-idiotypes against monoclonal anti-HLA-DR antibodies: characterization of recurrent idiotopes. (1983)

Monoclonal anti-HLA-DR antibody (anti-DR mAb) reactivity was investigated at the idiotypic level; three syngeneic anti-idiotype (Id) sera were raised against three monomorphic anti-DR mAb (206, BM 50, and D 1.12). The syngeneic anti-Id responses exhibited some differences in their intensity and the idiotypic determinants recognized by the three anti-Id sera were localized, at least in part, on the antigen combining site of the respective anti-DR mAb. Idiotype analysis of 24 anti-DR mAb was performed with these anti-Id sera by Id-binding inhibition assays. Idiotypic cross-reactivity was demonstrated for 12 out of the 24 anti-DR mAb, indicating a large degree of idiotypic recurrence. Analysis of the cross-inhibition patterns led us to define at least five sets of recurrent idiotopes: one set cross-reacting with anti-206 Id, the second with both anti-BM 50 and anti-D 1.12 Id, the third with anti-BM 50 Id only, the fourth with anti-D 1.12 Id only, and a fifth set was shared by D 1.12 and NE 4. Eleven monomorphic anti-DR mAb and one polymorphic anti-DR 3 mAb (16.23) did not cross-react with the three anti-Id sera. These results suggest that the mouse antibody response to monomorphic determinants on human Ia antigens is based on a limited number of recurrent idiotopes. In two cases, recurrent idiotopes could be related to a similar anti-DR mAb fine specificity. These anti-Id provide useful reagents to classify and compare anti-DR mAb.
The impact of recent vincristine on human hematopoietic progenitor cell collection in pediatric patients with central nervous system tumors (2014)

MC-VCR should be withheld before scheduled AHPCC to optimize CD34 collection.