gebhart/patrepeval huggingface dataset:
C<sub>2</sub>F<sub>6</sub>reactive ion-beam etching of LiNbO<sub>3</sub>and Nb<sub>2</sub>O<sub>5</sub>and their application to optical waveguides (1984)

Properties of C <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> F <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">6</inf> (freon 116) reactive ion-beam etching (RIBE) of LiNbO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> , Ti-indiffused LiNbO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> , and sputter-deposited Nb <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</inf> film on LiNbO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> are reported. A maximum differential etching ratio of approximately 5:1 has been measured for LiNbO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> and the AZ 1350B Shipley photoresist. We have used this etching technique to fabricate diffraction gratings on both Ti-indiffused LiNbO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> and Nb <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</inf> - LiNbO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> waveguides with measured throughput efficiencies in excess of 85 percent.
Query Expansion for Microblog Retrieval Focusing on an Ensemble of Features (2019)

In microblog search, vocabulary mismatch is a persisting problem due to the brevity of tweets and frequent use of unconventional abbreviations. One way of alleviating this problem is to reformulate the query via query expansion. However, finding good expansion terms for a given query is a challenging task. In this paper, we present a query expansion framework, where supervised learning is adopted for selecting expansion terms. Upon retrieving tweets by our proposed topic modeling based query expansion, we utilize the pseudo-relevance feedback and a new temporal relatedness approach to select the candidate tweets. Next, we devise several new features to select the temporally and semantically relevant expansion terms by leveraging the temporal, word embedding, and sentiment association of candidate term and query. Moreover, we also utilize the lexical and twitter specific features to quantify the term relatedness. After supervised feature selection using regularized regression, we estimate the feature importance by applying random forest. Then, we make use of a learning-to-rank (L2R) framework to rank the candidate expansion terms. Results of extensive experiments on TREC Microblog 2011 and 2012 test collections over the Tweets2011 corpus show that our proposed method outperforms the baseline and competitive query expansion methods.
A Simple and Low-cost Method of Sleeve to Insert Silicone Gel Breast Implants (2019)

Contact between silicone implants and skin/breast parenchyma has been described as an agent of implant contamination and biofilm formation, resulting in implant complications. The no-touch technique was introduced to avoid implant contact and reduce skin/breast contamination. The authors propose an easily available sleeve option using a saline sterile plastic container that provides elastic and transparent protection for inserting silicone implants. These sterile containers can be easily converted into a sleeve by cutting off the narrow end of the container, which then easily fits into the small inframammary, periareolar, and transaxillary incisions. The authors have performed this technique in 10 patients (20 implants) undergoing primary breast augmentation or revision breast surgery, with microtexturized implants ranging in size from 255 to 500 ml (mean, 325 ml) and obtained satisfactory results with no cases of complications. Our clinical outcome shows that this new sleeve does not interact with the implant or the patient's skin and soft tissues and has the added advantage of low cost compared with similar available devices, but further randomized and controlled studies are required to corroborate this effect.
Amitochondriate amoebae and the evolution of DNA-dependent RNA polymerase II (1998)

Unlike parasitic protist groups that are defined by the absence of mitochondria, the Pelobiontida is composed mostly of free-living species. Because of the presence of ultrastructural and cellular features that set them apart from all other eukaryotic organisms, it has been suggested that pelobionts are primitively amitochondriate and may represent the earliest-evolved lineage of extant protists. Analyses of rRNA genes, however, have suggested that the group arose well after the diversification of the earliest-evolved protists. Here we report the sequence of the gene encoding the largest subunit of DNA-dependent RNA polymerase II (RPB1) from the pelobiont Mastigamoeba invertens. Sequences within RPB1 encompass several of the conserved catalytic domains that are common to eubacterial, archaeal, and eukaryotic nuclear-encoded RNA polymerases. In RNA polymerase II, these domains catalyze the transcription of all nuclear pre-mRNAs, as well as the majority of small nuclear RNAs. In contrast with rDNA-based trees, phylogenetic analyses of RPB1 sequences indicate that Mastigamoeba represents an early branch of eukaryotic evolution. Unlike sequences from parasitic amitochondriate protists that were included in our study, there is no indication that Mastigamoeba RPB1 is attracted to the base of the eukaryotic tree artifactually. In addition, the presence of introns and a heptapeptide C-terminal repeat in the Mastigamoeba RPB1 sequence, features that are typically associated with more recently derived eukaryotic groups, raise provocative questions regarding models of protist evolution that depend almost exclusively on rDNA sequence analyses.
Lipoprotein(a) and Risk of Type 2 Diabetes (2010)

Our results indicated that Lp(a) was associated inversely with risk of type 2 diabetes independently of risk factors, in contrast to prior findings of positive associations of Lp(a) with cardiovascular risk.
Switchable regioselectivity in the PIFA–BF<sub>3</sub>·Et<sub>2</sub>O mediated oxidative coupling of meso-brominated Ni(<scp>ii</scp>) porphyrin (2014)

A simple and efficient method has been developed for the switchable synthesis of directly linked meso-brominated Ni(II) porphyrin dimers through PIFA-BF3·Et2O mediated oxidative coupling. The respective syntheses of meso-meso or meso-β singly, doubly, and triply linked porphyrin dimers can be easily realized with the same reagent system.
Neurotoxicity of the pesticidal carbamates. (1982)

The carbamates, stabilized derivatives of carbamic acid, are potent biological agents used extensively in applications ranging from agriculture to medicine and industry. This review covers the two major classes of pesticidal carbamates: (1) cholinesterase-inhibiting carbamates which include monomethyl- and dimethylcarbamates (used primarily as insecticides); and (2) non-cholinesterase inhibiting, sulfur containing carbamates, the dithiocarbamates (used primarily as fungicides and herbicides). The dithiocarbamates include four major classes; (a) methyldithiocarbamates, (b) dimethyldithiocarbamates, (c) diethyldithio carbamates, (d) ethylenebisdithiocarbamates. For the purposes of this review neurotoxicity is defined as any unwanted change in the functional status of the organism which can be characterized in terms of behavioral, neurochemical, electrophysiological, or neuropathological indices. Neurotoxicity associated with methyl- and dimethylcarbamates has been characterized in terms of their reversible cholinesterase-inhibiting properties. The dithiocarbamates can have neurotoxic effects. However, a complete characterization of the neurotoxicity of these compounds has not been attempted. The neurotoxic actions of the dithiocarbamates may be related to their metal-chelating and enzyme-inhibiting properties.
Killing by Ampicillin and Ofloxacin Induces Overlapping Changes in <i>Escherichia coli</i> Transcription Profile (2004)

The basis of bactericidal versus bacteriostatic action of antibiotics and the mechanism of bacterial cell death are largely unknown. Related to this important issue is the essential invulnerability to killing of persisters: cells forming a small subpopulation largely responsible for the recalcitrance of biofilms to chemotherapy. To learn whether death is accompanied by changes in expression of particular genes, we compared transcription profiles of log-phase Escherichia coli treated with bactericidal concentrations of two unrelated antibiotics: ampicillin and ofloxacin. Massive changes in transcription profile were observed in response to either agent, and there was a significant overlap in genes whose transcription was affected. A small group of mostly uncharacterized genes was induced and a much larger set was transcriptionally repressed by both antibiotics. Among the repressed genes were those required for flagellar synthesis, energy metabolism, transport of small molecules, and protein synthesis.
18 RNA Structural Elements and RNA Function (1993)

The structural elements that now exist in RNA must have evolved to provide chemical stability and to facilitate their biological functions. Structural biologists believe that determining the conformation and stability of the structures adopted by RNA will provide a better understanding of their functions. This belief is based mainly on the success of Watson and Crick with double strands for DNA. Even this archetype only shows that complementary base-pairing makes replication easy; the details of helix twist and of A-form, B-form, … or Z-form geometry are less useful. Nevertheless, we continue to be optimistic and to study RNA structure in the hope that it will provide hints about how RNA does its many jobs. The main value of a structure is to suggest new experiments. The structure allows predictions about the effect of mutations, inhibitors, and enhancers, and about the mechanisms of the reactions. The overall goal is to learn the general features of RNA structure that can be inferred from the sequence and then to relate these structures to biological functions. It is important to recognize that a molecule is not a rigid object; structural elements are dynamic. Single-stranded loops are mobile, base pairs can form and break, and even base-paired helical regions can bend and flex. The presence or absence of structure depends not only on the sequence, but also on the temperature and the environment in general. This means that knowledge of the thermodynamics of structure formation is crucial (for review, see Turner and Bevilacqua, this volume).
Functional Significance of Vertebrate lntegumental Pigmentation (1972)

SYNOPSIS Pigment cells and their synthesized products play an important functional role in the skin of most all vertebrates, from cyclostomes to man Both dermal and epidermal pigment cells function in physiological and morphological color changes and provide the cellular basis for vertebrate pigment patterns and differences in racial coloration Epidermal melanization is of particular importance in homeotherms in the regulation of seasonal pelage and feather color changes In addition, melanin pigmenta tion may have a photoprotective function, influence vitamin D synthesis in the skin protect or influence neivous system function, affect heat absorption and consenition, play an intracellular homeostatic role in the skin and (by leucocytic transport) elsewhere in the bodv and provide a structural element to the integument A consideration of the comparative evolution of the vertebrate lntegumental pigmental) system may be necessary for a pioper interpretation of the supposed roles ot melanin and other lntegumental pigments
Functional dissection of a sugar‐repressed α‐amylase gene (<i>RAmy1A</i>) promoter in rice embryos (1998)

The gibberellin-inducible rice alpha-amylase gene, RAmy1 A, was demonstrated to be sugar repressed in rice embryos and functional dissection of the promoter of RAmy1 A in relation of its sugar-modulated expression was performed. Gibberellin-response cis-elements of GARE (TAACAAA) and pyrimidine box (CCTTTT) were partially involved in the sugar repression.
Preparation and Characterization of Oxybenzone-Loaded Gelatin Microspheres for Enhancement of Sunscreening Efficacy (2006)

The objective of our present study was to prepare and evaluate gelatin microspheres of oxybenzone to enhance its sunscreening efficacy. The gelatin microspheres of oxybenzone were prepared by emulsion method. Process parameters were analyzed to optimize the formulation. The in vitro drug release study was performed in pH 7.4 using cellulose acetate membrane. Microspheres prepared using oxybenzone:gelatin ratio of 1:6 showed slowest drug release and those prepared with oxybenzone:gelatin ratio of 1:2 showed fastest drug release. The gelatin microspheres of oxybenzone were incorporated in aloe vera gel. Sun exposure method using sodium nitroprusside solution was used for in vitro sunscreen efficacy testing. The formulation C5 containing oxybenzone-bearing gelatin microspheres in aloe vera gel showed best sunscreen efficacy. The formulations were evaluated for skin irritation test in human volunteers, sun protection factor, and minimum erythema dose in albino rats. These studies revealed that the incorporation of sunscreening agent-loaded microspheres into aloe vera gel greatly increased the efficacy of sunscreen formulation more than four times.
Transient Elastooptic Effects and Q-Switching Performance in Lithium Niobate and KD^*P Pockels Cells (1970)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text R. P. Hilberg and W. R. Hook, "Transient Elastooptic Effects and Q-Switching Performance in Lithium Niobate and KD*P Pockels Cells," Appl. Opt. 9, 1939-1940 (1970) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Alterations in the fine structure of the rat epididymis after vasectomy (1972)

Abstract The fine structure of the epldidymal epithelium of the rat was studied at intervals up to nine months after bilateral vasectomy, unilateral vasectomy, or a bilateral sham operation. Membranous material accumulated in the cytoplasm of the ‘light’ cells of the cauda epididymidis in greater amounts after bilateral vasectomy than following a sham operation. The membranes were found in apical vacuoles, in moderately dense membrane‐bounded bodies in the mid‐region of the cells, and, most prominently, in large infranuclear masses. These large infranuclear membranous masses had a polymorphic interior composed of granules and amorphous material as well as membranes, and thus morphologically resembled large lysosomes or residual bodies. In some instances readily dentifiable parts of sperm were found in apical vacuoles of epithelial cells after vasectomy. It is suggested that these changes may reflect the absorption of parts of sperm by the epithelium of the cauda epididymidis after vasectomy. The nature of the ‘light’ cells is discussed, and the results are compared with alterations in other species after vasectomy.
Pulsed ultrasound treatment accelerates the repair of Achilles tendon rupture in rats (2005)

A rat tenotomy model was used to investigate the effect of combined conservative management and pulsed ultrasound (PUS) on the repair of tenotomized Achilles tendon. Hemitenotomy of right medial Achilles tendon was performed in 48 rats without suture, and patella tenotomy was performed to mimic immobilization and limb disuse of an injured limb. PUS and sham PUS were applied to the healing wound for the treatment group and control group for 5 min, 3 times per week for 2 or 4 weeks, respectively. Tensile tests showed that the ultimate tensile strength (UTS) and stiffness of the repaired tendon in the treatment group at 2 weeks reached 48.92+/-8.39% and 62.48+/-32.46% of the contralateral normal tendon strength, which were significantly higher than those of the control group (UTS, 30.36+/-15.46%; stiffness, 33.90+/-17.59; p<0.05). At 4 weeks, UTS increased to 77.09+/-15.31% and stiffness to 92.48+/-31.12% in the treatment group, significantly higher than those in the control group (UTS, 54.33+/-18.40%, p<0.01; stiffness, 65.02+/-25.48%, p<0.05). Light microscopy revealed more regular, denser, and better aligned collagen fibers in the healing scar of the PUS-treated healing tendons. The findings suggested that PUS were able to accelerate the healing of the ruptured tendons.
Targeting MYC Expression through G-Quadruplexes (2010)

In this review, the authors describe a novel mechanism for control of MYC expression that involves a four-stranded DNA structure, termed a G-quadruplex, amenable to small molecule targeting. The DNA element involved in this mechanism, the nuclease hypersensitive element III(1) (NHE III(1)), is just upstream of the P1 promoter and is subjected to dynamic stress (negative superhelicity) resulting from transcription. This is sufficient to convert the duplex DNA to a G-quadruplex on the purine-rich strand and an i-motif of the pyrimidine-rich strand, which displaces the activating transcription factors to silence gene expression. Specific proteins have been identified, NM23-H2 and nucleolin, that resolve and fold the G-quadruplex to activate and silence MYC expression, respectively. Inhibition of the activity of NM23-H2 molecules that bind to the G-quadruplex silences gene expression, and redistribution of nucleolin from the nucleolus to the nucleoplasm is expected to inhibit MYC. The authors also describe the mechanism of action of Quarfloxin, a first-in-class G-quadruplex-interactive compound that involves the redistribution of nucleolin from the nucleolus to the nucleoplasm. G-quadruplexes have been best known as test-tube oddities for more than four decades. However, during the past decade, they have emerged as likely players in a number of important biological processes, including transcriptional control. Only time will tell if these odd DNA structures will assume the role of an established receptor class, but it is clear from the scientific literature that there is a dramatic increase in interest in this little-known area in the past few years.
PACSPulse: A Web-based DICOM Network Traffic Monitor and Analysis Tool (2003)

PACSPulse, an open-source tool, was developed to identify and analyze the performance bottlenecks of picture archiving and communication systems (PACS). PACSPulse provides a graphical Web interface for straightforward analysis of PACS performance on the basis of data acquired by tracking usage by network, server, workstation, type of traffic, and time of day. The PACS archive logs performance and usage data on image traffic being sent to it from the imaging units and study data requested by users. The performance log is sent via file transfer protocol (FTP) to a separate server for analysis. The data are parsed and sent to a database server connected to a Web server. The Web site is used to depict trends in the performance of the entire system to detect signs of degradation. The system was built entirely of open-source components for the operating system, database, charting tool, and Web server. Performance monitoring is an essential tool for analyzing, understanding, and predicting the performance characteristics of a PACS.
Association of Ocular Disease and Mortality in a Diabetic Population (1999)

Presence of more severe retinopathy or visual impairment in diabetic patients is a risk indicator for increased risk of ischemic heart disease death. Presence of these ocular conditions may identify individuals who should be under care for cardiovascular disease.
Blocking, hand-off and traffic performance for cellular communication systems with mixed platforms (1993)

Cellular communication systems that support a mixture of platform types distinguished by different mobility characteristics are considered. A tractable analytical model for traffic performance analysis is developed using multidimensional birth–death processes and the method of phases. The framework allows consideration of homogeneous and nonhomogeneous systems, a broad class of dwell time distributions, and ‘missed’ hand-off initiations. Cut-off priority for hand-offs and several platform types are considered to demonstrate the approach. The effects of different mobility parameters and of imperfect detection of hand-off needs are examined. Theoretical performance characteristics are obtained. These exhibit carried traffic, hand-off activity, blocking probability and forced termination probability for each platform type. The realisable exchange of blocking for hand-off performance is shown. Computational issues are discussed and a method for extrapolating performance characteristics for systems with many channels is presented.
A comparison of brand personality and brand user‐imagery congruence (2009)

Purpose The purpose of this paper is to compare the brand personality and brand user‐imagery constructs in congruity theory to examine their relationship in the image congruence model as a basis of modeling brand attitudes for publicly and privately consumed brands. Design/methodology/approach A total of 272 surveys measured subjects' self‐image perceptions and subjects' perceptions of brand personality and user‐imagery. Congruence measures were used as indicators of the difference between respondent self‐image and each brand's image, and served as independent variables in stepwise regressions with brand attitude as the dependent variable. Findings The results indicated that, for publicly consumed brands, user‐imagery‐based congruence measures contributed more often to the explanatory power of the model. For privately consumed brands, brand personality congruity produced significant regressions but did not account for a large portion of explained variance, while user‐imagery only entered one private brand model. Originality/value Brand personality and brand user‐imagery are often used interchangeably in self‐congruity theory research. Although both constructs have received past research attention, no studies have compared them in the same study. The study fills the gap in the literature and enhances the usefulness of the self‐brand congruity model, providing a knowledge base for determining an overall brand positioning strategy.