gebhart/patrepeval huggingface dataset:
Effectiveness of lime particle size in the neutralisation of sulfidic acid sulfate soil materials (2010)

The effectiveness of the acid neutralising capacity of a range of lime particle sizes in alkaline and acidic sulfidic acid sulfate soils has been determined by an incubation method. The criterion for acceptable acid neutralising capacity was the ability of the neutralising material (e.g. lime) to maintain the soil materials’ pH at greater than or equal to 6.5. In incubated alkaline sulfidic soil materials this criterion was satisfied by lime particle sizes below 1 mm; while in incubated acidic sulfidic soil materials, a particle size of below 0.5 mm was required. This experiment has demonstrated, for the first time, the lime particle sizes required for the optimum treatment and remediation of sulfidic acid sulfate soil materials.
Coherent ion acceleration using two electrostatic waves (2000)

We analyze a recently discovered coherent ion acceleration mechanism that relies on the nonlinear interaction of a magnetized ion with multiple electrostatic waves, at least two of which differ in frequency by an integer multiple of the cyclotron frequency. The mechanism does not require the ion to be in resonance and can accelerate an ion with an arbitrarily low initial energy, hence its basic importance to practical applications. We illustrate the fundamental features of the mechanism through a parametric numerical study of the ion’s nonlinear interaction with two electrostatic waves. Compared to the wave frequencies, the wave amplitudes were found to have a weak effect on setting the energy bound of the coherent portion of the acceleration but have a strong impact on the nature of the acceleration as they control the connectivity between the coherent and stochastic domains of phase space. The lack of requirements on the initial ion energy and other fundamental properties of the mechanism point to its promise as an ion energization method for plasma propulsion.
Theoretical and Empirical Studies of Impurity Incorporation into β ‐ SiC Thin Films during Epitaxial Growth (1986)

The introduction into monocrystalline thin films of the n‐ and p‐type dopants of P and N, and B and Al, respectively, has been studied both theoretically and experimentally via thermodynamic considerations and chemical vapor deposition. The probable gas species which participate in the doping process for these elements has been theoretically investigated by initially determining the stabilities and the gas phase equilibria of the input dopant gases as a function of temperature using free energy minimization calculations. A subsequent experimental study of the amount of incorporation as a function of the partial pressure of the dopant source gas coupled with considerations of dopant incorporation based on a dilute solution model show that Al and P behave ideally while B and N apparently interact with the C or Si in the or fill normally unoccupied interstitial positions. The relationships of atomic concentration or carrier concentration with partial pressure of the dopant gas follow linear and parallel paths. The ratios of ionized dopant concentration to total dopant concentration for N, P, B, and Al are 0.1, 0.2, 0.002, and 0.01, respectively. The solubility limits of N, P, and B in at 1633 K were also determined to be approximately , , and , respectively; that of Al exceeds . The more efficient n‐ and p‐type dopants of N and Al have been used to produce what is believed to be the first p‐n junction diode in a film.
Orthogonal code design for quasi-synchronous CDMA (2000)

A new code design method for quasi-synchronous CDMA is proposed. The proposed scheme, based on the theory of finite projective planes, has the following advantages: orthogonality; low cross-correlation for both the quasi-synchronous mode and asynchronous mode; and low auto-correlation. Numerical auto-correlation and cross-correlation results are provided for both the proposed code design and the Walsh functions.
Monotone Smoothing with Application to Dose-Response Curves and the Assessment of Synergism (1990)

A spline-based procedure for monotone curve smoothing is proposed and is illustrated by application to dose-response curves. It is then shown how such smoothing can be applied to assess possible synergism or antagonism of two drugs.
Variable Sensitivity to Bacterial Methionyl-tRNA Synthetase Inhibitors Reveals Subpopulations of <i>Streptococcus pneumoniae</i> with Two Distinct Methionyl-tRNA Synthetase Genes (2003)

As reported previously (J. R. Jarvest et al., J. Med. Chem. 45:1952-1962, 2002), potent inhibitors (at nanomolar concentrations) of Staphylococcus aureus methionyl-tRNA synthetase (MetS; encoded by metS1) have been derived from a high-throughput screening assay hit. Optimized compounds showed excellent activities against staphylococcal and enterococcal pathogens. We report on the bimodal susceptibilities of S. pneumoniae strains, a significant fraction of which was found to be resistant (MIC, > or =8 mg/liter) to these inhibitors. Using molecular genetic techniques, we have found that the mechanism of resistance is the presence of a second, distantly related MetS enzyme, MetS2, encoded by metS2. We present evidence that the metS2 gene is necessary and sufficient for resistance to MetS inhibitors. PCR analysis for the presence of metS2 among a large sample (n = 315) of S. pneumoniae isolates revealed that it is widespread geographically and chronologically, occurring at a frequency of about 46%. All isolates tested also contained the metS1 gene. Searches of public sequence databases revealed that S. pneumoniae MetS2 was most similar to MetS in Bacillus anthracis, followed by MetS in various non-gram-positive bacterial, archaeal, and eukaryotic species, with streptococcal MetS being considerably less similar. We propose that the presence of metS2 in specific strains of S. pneumoniae is the result of horizontal gene transfer which has been driven by selection for resistance to some unknown class of naturally occurring antibiotics with similarities to recently reported synthetic MetS inhibitors.
Identification of peptides that bind to the constant region of a humanized IgG1 monoclonal antibody using phage display (1998)

The pFc' fragments of a humanized IgG1 monoclonal antibody were generated by digestion with immobilized pepsin. These pFc' fragments were separated from F(ab')2 fragments by affinity chromatography. The pFc' fragments corresponding to the constant region of the humanized IgG1 monoclonal antibody were used as targets for phage display using variable-length peptide libraries. Interacting phage-displayed peptides were selected by repetitious cycles of target screening and phage amplification. Peptide sequences, deduced by sequencing DNA from isolated phage, were aligned and analyzed for amino acid motifs against each other and protein A. These results indicated that an amino acid motif has been identified using phage display technology that is sufficient for pFc' binding. Furthermore, the peptides derived from this study may prove useful in the development of peptidomimetic alternatives to protein A for use in affinity chromatography.
A Low Complexity Pilot-Aided Channel Estimation Resisting Residual Timing Errors for OFDM Systems (2007)

This paper, patent pending, put forwards a novel low complexity channel estimator for a special case of comb-type pilot pattern with pilot interval I = 2, which can combat the effect of residual timing offset on interpolation-based channel estimation. The channel estimation algorithm based on comb-type pilots is divided into pilot signal estimation and channel interpolation. The pilot subcarriers estimation can be based on least square (LS) or minimum mean square error (MMSE) algorithms which can achieve better performance than LS at the cost of high complexity. Furthermore MMSE need to know in advance the priori knowledge of noise variance and channel covariance. So considering engineering implementation, LS algorithm for pilot subcarriers estimation and linear interpolation for non-pilot subcarriers estimation are adopted in this paper. Then the effect of residual timing offset on such channel estimator is analyzed. Based on the unique characteristics of the special pilot pattern focused by this paper, a quite simple correction method is put forward. And simulation results show that the proposed method can effectively improve the system performance when existing residual timing offset.
About time for news (1996)

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
5 Poems (2014)

Click to increase image sizeClick to decrease image size Additional informationNotes on contributorsCharles Harper WebbCharles Harper Webb, PhD, has published ten books of poetry, including Reading the Water, Liver, Tulip Farms & Leper Colonies, Hot Popsicles, Amplified Dog, Shadow Ball: New and Selected Poems, and his most recent, What Things Are Made Of, published by the University of Pittsburgh Press in 2013. Webb's awards in poetry include the Morse Prize, the Kate Tufts Discovery Award, the Felix Pollock Prize, and the Benjamin Saltman Prize. His poems have appeared in many distinguished journals and anthologies, including American Poetry Review, Paris Review, Iowa Review, Ploughshares, Kenyon Review, Tin House, Poets of the New Century, Best American Poetry, and The Pushcart Prize. A former professional rock musician and psychotherapist, he is the editor of Stand Up Poetry:An Expanded Anthology and recipient of a Whiting Writer's Award, a fellowship from the Guggenheim Foundation, and the CSULB Distinguished Faculty Teaching Award. He is Professor of English at California State University, Long Beach, and teaches in the MFA program in Creative Writing there. Correspondence:Charles.Webb@csulb.edu.
Marked synergism of dimethylnitrosamine carcinogenesis in rats exposed to cadmium. (1987)

The combined carcinogenic effect of cadmium and dimethylnitrosamine (DMN) was examined in male Wistar rats, to test whether the previously observed synergism in mutagenicity between cadmium and 2 N-nitroso compounds would be paralleled by a synergism in carcinogenicity. In experiment 1, 50 five-month old rats received 18 mg DMN/kg i.p. followed by cadmium i.m. in two injections totaling either 1.5 or 3.0 mg Cd2+/kg. In experiment 2, 30 weanling rats received five i.m. doses totaling 6 mg Cd2+/kg followed by 18 mg DMN/kg. After 52 weeks, the incidence of renal tubular neoplasms was significantly increased above additivity in both experiments (P = 0.0005 to 0.017). Experiment 1 also showed a synergistic increase in the incidence of neoplastic (P = 0.024) and preneoplastic (P less than 0.01) microscopic liver lesions, of tumors of organs other than liver and kidney (P less than 0.01), of malignant versus benign tumors (P = 0.038), and of multiple versus single tumors (P = 0.0019). In experiment 2, the incidence of DMN-induced hepatocellular adenomas was significantly lower than additivity, suggesting an antagonistic, protective effect of cadmium pretreatment. The overall incidence of tumors of any type was 17.5 versus 67.7% in control (one agent or none) versus test animals. Malignant tumors included carcinomas, sarcomas, and lymphomas, involving nine different sites. Cadmium appears to enhance the initiation of carcinogenesis induced by DMN. Both cadmium and nitrosamines are known environmental contaminants present in air, food, water supplies, and tobacco smoke.
Ar ion bombardment modification of Pd–Au/MWCNTs catalyst surfaces studied by electron spectroscopy (2011)

Abstract The Pd–Au multiwall carbon nanotubes (MWCNTs) supported catalyst prepared by polyol method was found to be catalytically active material in direct formic acid fuel cell electrooxidation reaction and during cyclic voltammetry (CV) measurements. The surface of the catalyst after calcination and reduction treatments was investigated previously. The effect of Ar ion bombardment modification on the calcinated catalyst was studied by electron spectroscopy. The chemical and structural changes were deduced from the X‐ray photoelectron spectroscopy (XPS) and X‐ray excited Auger electron spectroscopy (XAES) spectra. The XPS quantitative and qualitative analysis of different chemical forms of atoms indicated that the sputtering causes an increase of Pd surface content, accompanied by decreasing content of N, O, C sp 2 , and Au (due to preferential sputtering of Au) and significant increase of C sp 3 amount. A decrease was also observed in the surface content of (i) carboxyl groups, (ii) water, and (iii) Pd oxide (mainly less stable PdO 2 ). Analysis of XPS inelastic background shape by QUASES indicates that Pd crystallites phase is covered by PdO x + C amorphous overlayer of decreasing thickness after sputtering. Namely, thickness of PdO x overlayer decreased from 8.2 to 3.5 nm and the thickness of amorphous carbon overlayer located on the top increased from 2.3 to 3.5 nm. Significant increase of C sp 3 content results from carbon nanotube (CNT) π bonds damaging, whereas decrease of PdO 2 content from lower stability of PdO 2 . Larger thickness of C amorphous overlayer, in contrary to PdO x , may result from higher preferential sputtering of oxygen than carbon atoms and cracking of the MWCNTs structure by Ar + ions.
Acute optic neuritis: Myelin basic protein and proteolipid protein antibodies, affinity, and the HLA system (1995)

Anti-myelin basic protein, anti-proteolipid protein, and anti-myelin basic protein peptide (amino acid residues 1-20, 63-88, and 89-101) antibody-secreting cells were studied in 20 patients with idiopathic optic neuritis, 20 with optic neuritis as part of multiple sclerosis, and 20 neurological control subjects. Antibody-secreting cells were enumerated with an immunospot assay; the relative binding affinity of the antibodies was estimated by elution with thiocyanate. Patients with optic neuritis had more anti-myelin basic protein and anti-proteolipid protein antibodies than did control subjects (both p < 0.05); there was no difference between idiopathic optic neuritis and optic neuritis as a symptom of multiple sclerosis. Presence of the multiple sclerosis-associated DRB1*1501 gene was not associated with preferential synthesis of high-affinity antibodies reactive with a single myelin basic protein peptide or with preferential synthesis of either anti-myelin basic protein or anti-proteolipid protein antibodies. The results demonstrate a potential for intrathecal synthesis of both anti-myelin basic protein and anti-proteolipid protein antibodies of high apparent affinity in patients with optic neuritis.
Reactive surfactants in heterophase polymerization (1999)

This paper summarizes the work carried out during 3 years in a Network of the program “Human Capital and Mobility” of the European Union CHRX 93-0159 entitled “Reactive surfactants in heterophase polymerization for high performance polymers”. A series of about 25 original papers will be published in the open literature under the general title of this feature article from Part I to Part XXV. The synthesis of selected surfactants either anionic or non ionic, and as well inisurfs (both initiators and surfactants), transurfs (both transfer agent and surfactants) or surfmers (both comonomers and surfactants) is shortly described. They were applied in emulsion polymerization and dispersion polymerization, and their behavior in shortly discussed. Finally films have been produced from a few of them, mainly from surfmer with maleic reactivity, and the main properties, and interests of such films are discussed.
Th2 Cytokines Inhibit Lymphangiogenesis (2015)

Lymphangiogenesis is the process by which new lymphatic vessels grow in response to pathologic stimuli such as wound healing, inflammation, and tumor metastasis. It is well-recognized that growth factors and cytokines regulate lymphangiogenesis by promoting or inhibiting lymphatic endothelial cell (LEC) proliferation, migration and differentiation. Our group has shown that the expression of T-helper 2 (Th2) cytokines is markedly increased in lymphedema, and that these cytokines inhibit lymphatic function by increasing fibrosis and promoting changes in the extracellular matrix. However, while the evidence supporting a role for T cells and Th2 cytokines as negative regulators of lymphatic function is clear, the direct effects of Th2 cytokines on isolated LECs remains poorly understood. Using in vitro and in vivo studies, we show that physiologic doses of interleukin-4 (IL-4) and interleukin-13 (IL-13) have profound anti-lymphangiogenic effects and potently impair LEC survival, proliferation, migration, and tubule formation. Inhibition of these cytokines with targeted monoclonal antibodies in the cornea suture model specifically increases inflammatory lymphangiogenesis without concomitant changes in angiogenesis. These findings suggest that manipulation of anti-lymphangiogenic pathways may represent a novel and potent means of improving lymphangiogenesis.
On The Marine Triassic Fauna of Lungyen And Ningyang, Fukien (1950)

福建之三疊紀地層（溪口系），包括有頁岩，砂岩，泥質石灰岩，薄層石灰岩等岩石，均屬淺海湘，其中常含有軟體動物化石。本篇所述材料，係於卅五年冬採自龍岩，寧洋兩縣之三疊紀頁岩與泥質石灰岩中，當時採集頗多，其中以斧足類動物佔絕大多數，其餘有環蟲類，腹足類，頭足類（菊石）等少許，該批化石之種屬，已經鑑定而記述於本文者共得十屬廿五種。內計環蟲一種，斧足動物廿三種，腹足動物一種，茲將名單列下：ANNELIDA。Spirorbis valvata （Goldfuss）。PELECYPODA。Oxytoma sp. aff. O. inaequivalve Sow var. mtermedia Emmr.。O. sp. aff. O. mojsisovisci Teller。Pseudomonotis（Claraia）aurita Haner。P.（C.）ef. grieshachi Bittner。P.（C.）griesbachi var. concentrica Yabe。P.（C.）wangi Patte。P.（C.）sp. aff. punjabiensis Witt.。P.（C.）sp. ind。P.（Emorphotis）aff. illyrica var. crassistrata Hsu。P.（E.）multiformis Bit.。P.（E）telleri Bit. var. teuistriata Bit.。P.（E.）telleri Bit. subsp. tuberclata（subsp. nov.）。Pecten sp. ind.。Gervilleia costata Schloth。G. sp. aff. tealei Cox。Hoernesia sp. ind.。Heernesis sp.？Modiola（Septiola ?）sp. aff. dimidiate Munster。M sp. ind.。Anodontophora sp. nov. ind.。A. sp. ef. manmuensis Reed。A. sp. ind.。Cucullea sp. ind.。GASTROPODA。Loxonema sp.。上表化石中已確定種名者計八種，其中除一新亞種外，尚有屬於我國下三疊紀之標準化石者二（Ps. wangi PATTE與Ps. griesbachi var. concentrica YABE）；首見於喜馬拉雅或阿爾卑斯區域之下三疊紀之種者三（Ps. aurita HAU., P. multiformis BIT.及Ps. tenuistriata BIT.）其餘Gervilleia costata SCHLOTH一種在地質上衍佈之時代較長（自下三疊紀至中三疊紀甚至上三疊紀），Spirorbis valvata（GOLD.）；亦較常見於下三疊紀地層中，凡此數種在我國南部之下三疊紀地層中，亦均已有紀錄，惟於福建境内尚算是一新產地。在福建之三疊紀地層中，至今尚無發見，有後於錫克替克期（Skythic stage）之標準化石，故其境内有無較新於錫克替克期（下三疊紀）之地層存在，尚成問題，但作者認爲仍有其存在之可能。
Enabling data protection through PKI encryption in IoT m-Health devices (2012)

Ambient Assisted Living (AAL) aims at providing unobtrusive support to frail and elderly people for their daily life based on their context and situation. To this end, systems and services are required which are user-centric and adaptable towards the needs and capabilities of the people in need of care. The continuous integration of leading-edge technologies, such as cloud and wireless communication technologies, in the context of the Internet of the Things (IoT), can meet this requirement by enabling a new form of communication between frail and elderly people, their environment and relevant groups of care givers. However, for IoT-based systems to reach their full potential, sound answers need to be provided to the important security questions arisen, particularly those regarding authentication of entities (people and environmental objects) and data privacy. This paper presents a system based on Gateways (GW) that aggregate health sensor data and resolve security issues through digital certificates and PKI data encryption.
Fully automated, level set-based segmentation for knee MRIs using an adaptive force function and template: data from the osteoarthritis initiative (2016)

Our study proposes a novel fully automated segmentation algorithm adapted for three types of knee cartilage tissues. We leverage state-of-the-art level set approach with newly constructed knee template. The experimental results show that the proposed method improves the performance by an average of 5 % over existing methods.
Invisible intruders: rootkits in practice (1999)

To catch a craker you must understand the tools and techniques we will use to try to defeat you. A system cracker's first goal is to hide his presence from you, the admionistrator. One of the most widely used cracker tools for doing this is the rootkit. A rootkit gets its name not because the toolbox is composed of tolls to crack root, but instead because it comprises tools to keep root.
Analysis of a linear position sensor with a Hall effect element (1994)

The performance characteristics of linear Hall element sensors for non-contact determination of the position of a moveable permanent magnet along a pre-established path are analysed. Simple theoretical expressions suitable for computer modelling of previously described sensors are presented. Practical measurements have verified the theoretical predictions arrived at by simulation means. Having established the validity of the basic formulae predictions of performance for a variety of magnet configurations can now be attempted using superposition principles. As an application, a method of improving the linearity of a simple sensor with a single cylinder magnet by means of shaping the cylinder to a special profile is described. An alternative example is a new high-gradient configuration of a radially symmetric sensor construction on a base of two oppositely magnetized rings.
Image compression using finite-state vector quantization with derailment compensation (1993)

Presents an image compression method using a finite-state vector quantizer (FSVQ) with derailment compensation. The derailment problem in conventional FSVQ systems is discussed first. Then a novel scheme is presented to overcome the problem. In this scheme, each state is partitioned into K Voronoi regions. The corresponding region codebook is designed individually. A simple initial classifier based on a mean codebook is also presented to determine the state and the region for an input vector. The results show that the derailment problem has been completely attacked. Experimental results indicate that the new FSVQ system is very computationally efficient and achieves good picture quality at an average rate of 0.33 b per pixel (bpp).< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Use of molecular modeling and site-directed mutagenesis to define the structural basis for the immune response to carbohydrate xenoantigens (2007)

Xenoantibodies induced during early and delayed xenograft responses are predominantly encoded by genes in the VH3 family, with a small proportion encoded by VH4 germline progenitors. This restricted group can be identified by the unique canonical structure of the light chain, heavy chain and CDR3. Computer-simulated models depict this structure with accuracy, as confirmed by site-directed mutagenesis. Computer-simulated drug design using computer-simulated models may now be applied to develop new drugs that may enhance the survival of xenografted organs.