gebhart/patrepeval huggingface dataset:
The impact of bone compression on bone-to-implant contact of an osseointegrated implant: a canine study. (2012)

The dental community's interest in early loading of endosseous implants provides the stimulation to test the ability of modified implant designs as well as surgical techniques to enhance the establishment and maintenance of implant stability. This preclinical canine study examined this potential by implementing several implant design and surgical technique modifications to an existing tapered implant system. The design and site preparation changes were intended to induce different compression states on the native bone, hypothetically affecting the primary stability and the rate and extent of osseointegration. The outcomes of the modifications were evaluated using resonance frequency analysis, radiographic analysis, light microscopy, and histomorphometric measurements. Three compression scenarios were tested, with each demonstrating excellent clinical, radiographic, and histologic results throughout the evaluation period. However, the scenario intended to induce a moderate degree of compression provided the best overall results, supporting its use in early loading protocols.
무용제형 저기포성 정련제의 제조 및 정련특성 (2006)

Solvent-free low foaming scouring agents (LFSC) were prepared by blending of 2-ethylhexylaminoethyl sulfate (2-EHAS), POE(10) octadecylbenzyl- ammonium chloride (POBAC) and Sedlan FF-200 (FF-200). As the results of several tests, 2-EHAS/POBAC/FF-200/water (8g/12g/20g/60g) mixture (LFSC-5) showed good cleaning power, penetrating ability and stability to alkali, and gave less problem in water pollution. The foaming power of LFSC-5 measured by Ross and Miles method was 8mm foam height immediately after foaming, and that measured by Ross and Clark method was less than 300mm foam height at 30℃, and 18mm at 80℃. As a result, LFSC-5 proved a good low foaming scouring agent for fiber.
Abstract LB-146: Identification of copy number alterations in small cell lung cancer (2010)

Abstract Small cell lung cancer (SCLC) comprises 20% of all lung cancer cases and is a particularly malignant disease. The identification of genomic alterations in small cell tumors and metastases and characterization of the genes within those regions will aid in our understanding of SCLC development and progression. DNA copy number gains and losses in human and mouse tumors frequently highlight genes of functional importance. Mouse tumors are often less genomically complex than their human counterparts and several recent studies have highlighted the power of comparative genomic studies of mouse models to identify genes relevant to human tumor progression. In a mouse model, inactivation of p53 and Rb following Cre-mediated recombination results in the development of lung tumors that resemble human SCLC histopathologically. Using this model of malignant SCLC, we have identified DNA copy number alterations in tumors and metastases using Illumina's Solexa massively parallel DNA sequencing technology. While the majority of the genome is unaltered, we observed several focal deletions and high-level amplifications. We detected an amplification of a region including the gene L-myc, a gene previously identified to be amplified in SCLC, and a region including Nuclear Factor 1/B (Nfib). Additionally, several cell lines derived from these lung tumors and metastases have high-level amplifications of Nfib. The DNA copy number data will be probed for conserved changes in tumors and metastases isolated from different animals and functionally validated using in vitro and in vivo assays. Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr LB-146.
Intelligent Medical Image SearchIntelligente Bildsuche in der Medizin (2009)

Abstract Due to vast progress of medical image devices, clinicians today rely deeply on images for screening, diagnosis, treatment planning and follow up. However, these medical images are still indexed by keywords and can not be searched and retrieved for their content. In this article we present the project MEDICO that strives to implement intelligent medical image search by means of machine learning algorithms and semantic technologies.
EM-based simultaneous registration, restoration, and interpolation of super-resolved images (2004)

A maximum likelihood (ML) solution to the problem of obtaining high-resolution images from sequences of noisy, blurred, and low-resolution images is presented. In our formulation, the registration parameters of the low-resolution images, the degrading blur, and noise variance are unknown. Our algorithm has the advantage that all unknown parameters are obtained simultaneously using all of the available data. An efficient implementation is presented in the frequency domain, based on the expectation maximization (EM) algorithm. Simulations demonstrate the effectiveness of the algorithm.
Content-based browsing and editing of unstructured video (2002)

The focus of this paper is on building a set of tools that analyze, characterize and prepare footage shots with a camera for unanticipated uses. The idea is to take this ensemble of raw stuff and use it in interesting ways that are not just making a sequence out of them. Some of the possible uses of such unstructured video are: making a time slice of a person or a series of events, selecting a group of shots and making a postcard out of them, making a collage of shots, making a SalientStill/sup TM/ storyboard, etc. We employ novel distribution clustering algorithms to enable the browsing of unstructured video. The browser permits navigation of content and extraction of stills, collages and summaries from unstructured video.
Exploring the Association between Vascular Dysfunction and Skeletal Muscle Mass, Strength and Function in Healthy Adults: A Systematic Review (2020)

<i>Background</i>: The prevalence of vascular dysfunction increases with advancing age, as does the loss of muscle mass, strength and function. This systematic review explores the association between vascular dysfunction and skeletal muscle health in healthy adults. <i>Methods</i>: EMBASE and MEDLINE were searched for cross-sectional and randomized controlled studies between January 2009 and April 2019, with 33 out of 1246 studies included based on predefined criteria. Assessments of muscular health included muscle mass, strength and function. Macrovascular function assessment included arterial stiffness (pulse wave velocity or augmentation index), carotid intima-media thickness, and flow-mediated dilation. Microvascular health assessment included capillary density or microvascular flow (contrast enhanced ultrasound). <i>Results</i>: All 33 studies demonstrated a significant association between vascular function and skeletal muscle health. Significant negative associations were reported between vascular dysfunction and -muscle strength (10 studies); -mass (9 studies); and -function (5 studies). Nine studies reported positive correlations between muscle mass and microvascular health. <i>Conclusions</i>: Multiple studies have revealed an association between vascular status and skeletal muscle health in healthy adults. This review points to the importance of screening for muscle health in adults with vascular dysfunction with a view to initiating early nutrition and exercise interventions to ameliorate functional decline over time.
Laser system design for safety in manufacturing (1990)

The majority of industrial lasers used in manufacturing are Class 4 lasers. As such, engineering and administrative control measures appropriate to that class of lasers must be enforced to ensure safe use of lasers in manufacturing.
Volumatic usage: some generic salbutamol metered dose inhalers can be used. (1994)

Inhalations from generic salbutamol (Baker Norton) and Ventolin metered dose inhalers with a Volumatic inhalation aid deliver similar amounts of drug to the lungs and the total systemic absorption from the two products is the same.
Interoperability in a heterogeneous environment for engineering design (2002)

This paper describes the communications component of a multidatabase environment for engineering design. The environment uses the STEP (Standard for the Exchange of Product Data) product model as a global conceptual view of data that exists within CAD tools. The meta data component stores information about the global view of the design and serves as an interface description repository. The communications component then uses the interface description repository to dynamically build operation calls. Interface and operation descriptions can easily be modified and new descriptions can be added to the environment at any time. The flexibility provided by this approach enhances interoperability among the tools of the environment and makes it easy to configure different sets of design tools.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Biosynthesis of Unnatural Bacteriochlorophyll<i>c</i>Derivatives Esterified with α,ω-Diols in the Green Sulfur Photosynthetic Bacterium<i>Chlorobaculum tepidum</i> (2011)

Unnatural bacteriochlorophyll (BChl) c derivatives possessing a hydroxy group at the terminus of a hydrocarbon chain at the 17-propionate were biosynthesized in the green sulfur photosynthetic bacterium Chlorobaculum tepidum. Addition of exogenous 1,8-octanediol, 1,12-dodecanediol, and 1,16-hexadecanediol in acetone to liquid cultures resulted in accumulation of BChl c monoesterified with the corresponding diols. The relative ratios of the novel BChl c derivatives esterified with 1,8-, 1,12-, and 1,16-diols to totally producing BChl c were 8.2, 50.2, and 57.6% in the cells grown with additive α,ω-diols at concentrations of 1.5, 0.06, and 0.06 mM, respectively, at the final concentration. The homologue composition of BChl c derivatives esterified with these α,ω-diols was similar to that of original, coexisting BChl c esterified with farnesol (BChl c(F)), suggesting that esterification of α,ω-diols occurred at the last step of the BChl c biosynthetic pathway by BChl c synthase, BchK, in the same manner as in BChl c(F). Chlorosomes, which were isolated from cells grown in the presence of exogenous α,ω-diols, contained a ratio and a composition of BChl c derivatives esterified with the diols similar to those in the whole cells, indicating that these BChl c derivatives were actually present in chlorosomes. Q(y) absorption bands of C. tepidum cells containing the novel BChl c derivatives were shifted to a shorter wavelength, although their bandwidths were analogous to those of cells obtained by normal cultivation. Circular dichroism spectra of cells that had BChl c derivatives esterified with α,ω-diols exhibited S-shaped signals in the Q(y) region, whose polarities were the reverse of those of cells grown in the normal medium and by supplementation with neat acetone as a control experiment. These spectral features of C. tepidum possessing BChl c derivatives esterified with α,ω-diols imply that the novel BChl c derivatives possessing a hydroxy group at the terminus of a hydrocarbon chain affect their self-assembly in chlorosomes.
Synthesis of Nitroxide End‐Labeled Polymers by Capturing Polystyrene Radicals with Spin Traps (2018)

Abstract Atom transfer radical polymerization is used to synthesize brominated polystyrene, and the alkyl halide chain end is transformed into a nitroxide radical by the addition of excess nitrosobenzene to a redox active reaction mixture. The nitroxide group at the chain is verified using gel permeation chromatography, UV–vis, and electron paramagnetic resonance spectroscopy, showing the addition of the nitroso group does not result in a doubling of molecular weight, with the resulting polymer possessing new absorptions in the 300–400 nm range and an unpaired electron. The nature of the radical trap plays a role in halting the reaction at the end‐capped nitroxide polymer, rather than undergoing dimerization via atom transfer radical coupling‐type pathways. The polymeric nitroxide radical can be used to trap a second polymer radical in a subsequent reaction, simply by reacting with a second bromine‐capped polymer and adjusting the redox activity of the solution.
Regiospecific Oxidation of Methyl Groups in Dimethylanisoles (1987)

Dimethylanisoles in which one of the methyl groups is meta and the other is ortho or para are regiospecifically oxidized in high yield to the corresponding ortho- and para-substituted aldehydes by copper (II) and peroxydisulfate. Subsequent oxidation of the aldehydes with sodium chlorite furnishes the corresponding acids in excellent yield.
Human Transcription Factor TFIIIC2 Specifically Interacts with a Unique Sequence in the <i>Xenopus laevis</i> 5S rRNA Gene (1989)

Transcription factor TFIIIC2 derived from human cells is required for tRNA-type gene transcription and binds with high affinity to the essential B-box promoter element of tRNA-type genes. Although 5S rRNA genes contain no homology with the tRNA-type gene B box, we show that TFIIIC2 is also required for Xenopus laevis 5S rRNA gene transcription. TFIIIC2 protected an approximately 30-base-pair (-10 to +18) region of a Xenopus 5S rRNA gene from DNase I digestion. This region, which spanned the transcription start site, included sequences that are highly conserved among eucaryotic 5S rRNA genes and have no homology with the B-box sequence of tRNA genes. Mutation of the TFIIIC2-binding site reduced transcription of the 5S rRNA gene by a factor of 10 in HeLa cell extracts. Methylation of C residues within the TFIIIC2-binding site interfered with binding of TFIIIC2. These results suggest a role of the TFIIIC2-binding sequence in 5S rRNA gene transcription. In addition, the 5S rRNA gene binding site and the tRNA-type gene B-box sequence did not compete with each other for binding to TFIIIC2 any better than did an unrelated DNA sequence, indicating that TFIIIC2 interacts with 5S rRNA genes and tRNA-type genes through separate DNA-binding domains or polypeptides.
Study of field-of-view overlap for night vision applications (2003)

The effect of increasing the field-of-view by partial overlap technique was studied experimentally for static and moving images. A number of factors such as binocular rivalry, suppression, image breakup resolution, and search time were investigated. The experimental results show that the binocular overlap area should be greater than 40% for the display to be comfortable to the eye. Image breakup effects were found to be predominant for static images but negligible for moving images.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Phylogenetically Distinct <i>Staphylococcus aureus</i> Lineage Prevalent among Indigenous Communities in Northern Australia (2009)

ABSTRACT The aim was to determine the evolutionary position of the Staphylococcus aureus clonal complex 75 (CC75) that is prevalent in tropical northern Australia. Sequencing of gap , rpoB , sodA , tuf , and hsp60 and the multilocus sequence typing loci revealed a clear separation between conventional S . aureus and CC75 and significant diversity within CC75.
The EXPLORE Project. I. A Deep Search for Transiting Extrasolar Planets (2003)

Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digitales de tema americanista a los investigadores y usuarios interesados de cualquier parte del mundo.
Near-field microwave and mm-wave noninvasive diagnosis of human skin (2009)

Microwave and mm-wave reflectometry is one of the potential techniques for diagnosis of human skin for detection of diseases such as skin cancer. It is shown that using an open-ended waveguide probe, non-contact measurements of the reflection properties of skin may be conducted leading to distinction between dielectric properties of normal and diseased skin. This technique can then be extended into a differential technique which enables skin property differentiation independent of the location on the body. This paper discusses the basics of the method along with some preliminary results.
A Discrete Mathematical Model for Angiogenesis (2016)

Angiogenesis is the morphogenetic phenomenon in which new blood vessels emerge from an existing vascular network and configure a new network. In consideration of recent experiments with time-lapse fluorescent imaging in which vascular endothelial cells exhibit cell-mixing behavior even at a tip of newly generated vascular networks, we propose a discrete mathematical model for the dynamics of vascular endothelial cells in angiogenic morphogenesis. The model incorporates two-body interaction between endothelial cells which induces cell-mixing behavior and length of the generating blood vessel shows temporal power-law scaling behavior. Numerical simulation of the model successfully reproduces elongation and bifurcation of blood vessels in the early stage of angiogenesis.
Isolation and Characterization of a Doritaenopsis Hybrid GIGANTEA Gene, Which Possibly Involved in Inflorescence Initiation at Low Temperatures (2011)

In the Doritaenopsis hybrid, like most of the orchid species and hybrids, temperature is crucial for the vegetative-to-reproductive transition, and low temperature is required for bud differentiation. To understand the molecular mechanism of this process, an orchid GIGANTEA (GI) gene, DhGI1, was isolated and characterized by using the rapid amplification of cDNA ends (RACE) PCR technique. Sequence analysis showed that the full-length cDNA is 4,022 bp with a major open reading frame of 3,483 bp, and the amino acid sequence showed high similarity to GI proteins in Zea mays, Oryza sativa, Arabidopsis thaliana and other plants. Semi-quantitative RT-PCR revealed that DhGI1 was expressed throughout development and could be detected in roots, stems, leaves, peduncles and flower buds. The expression level of DhGI1 was higher when the plants were flowering at low temperature (22/18℃ day/night) than the other growth stages. Further analysis indicated that the accumulation of DhGI1 transcripts was significantly increased at low temperature, and concomitantly, initiation of the peduncle was observed. However, DhGI1 levels were low under high temperature (30/25℃) conditions, and flower initiation was inhibited. These results indicate that the expression of DhGI1 is regulated by low temperature and that DhGI1 may play an important role in inflorescence initiation in this Doritaenopsis hybrid at low temperatures.
Ultrashort pulse generation from a passively mode-locked Ti:sapphire laser based system (1992)

The detailed characteristics of a passively mode-locked Ti:sapphire laser using saturable absorbers are described. This laser can stably generate nearly transform-limited sub-100-fs pulses around 780 nm. Combining this oscillator and a double-pass Ti:sapphire amplifier pumped by a CW Q-switched YAG laser (3 kHz) allows fiber-grating pulse compression down to 14 fs.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Representation of sinusoid ‘‘ramps’’ and ‘‘damps’’ in auditory-nerve fibers of the goldfish (1995)

Earlier, behavioral data was presented showing that goldfish perceive repeated, asymmetrically shaped 400-Hz tone bursts (ramps and damps) qualitatively as humans do: Ramps are more tonelike than damps [R. Fay and R. Patterson, 2941 (A) (1994)]. Ramps have slow rise and relatively fast fall envelopes. Damps are ramps played backward. Single auditory-nerve fibers were recorded in response to the same ramp and damp stimuli used in the behavioral studies. Spike times were recorded for two presentations of six, 3-s stimuli: Ramps with 25-, 35-, and 45-ms rise times and 5-ms fall times, and these stimuli played backward (damps), presented at several levels. Tuning was described using REVCOR analysis and by spike count functions of frequency at several levels. Responsiveness was defined using the coefficient of synchronization (R) over the carrier period, the number of spikes evoked (N), and the statistic Z where Z=R2N. For most fibers, R, N, and Z were greater for ramps than for the corresponding damps. This neural behavior is quantitatively similar to the behavioral results. The differential perception of ramps and damps is represented within individual primary afferents. The origins of these physiological differences will be discussed. [Work supported by the NIDCD.]
Upmodulation of αvβ1 integrin expression on human tumor cells by human interleukin for DA cells/leukemia inhibitory factor and oncostatin M: Correlation with increased cell adhesion on fibronectin (1995)

Integrins belong to a large family of heterodimeric membrane glycoproteins which mediate cell-cell or cell-extracellular matrix interactions. These interactions could play a major role during the migration of tumor cells across the extracellular matrix and vascular endothelium and would thus appear to be requisite for the metastatic process. Pretreatment of the Foss human melanoma cell line with HILDA/LIF or OSM, two cytokines involved in acute-phase response, increased the expression of membrane alpha v beta 1 1.5-2-fold. The same phenomenon was observed on the SK-N-SH human neuroblastoma cell line. alpha v beta 1 upmodulation was concomitant with improved tumor cells attachment to the fibronectin matrix. This greater adhesion of tumor cells to fibronectin was inhibited by specific monoclonal antibodies against alpha v or beta 1 integrin subunits. Similar results were obtained after TNF-alpha treatment. Our findings demonstrate the ability of HILDA/LIF and OSM to modulate tumor cell capacity to adhere to the matrix component, suggesting a potential role for these cytokines in modulation of tumoral progression.
Electrodeposition dynamics: electrochemical and X-ray scattering studies (1998)

Studies of the electrodeposition dynamics of underpotential deposition (UPD) processes based on electrochemical and in-situ surface X-ray scattering studies are presented. The studies focus on the UPD of Hg on Au(111) in sulfate media, and Cu UPD on Pt(111) in sulfate and chloride media. In the first case it is shown that Hg UPD on Au(111) in sulfuric acid follows a progressive nucleation mechanism which involves various surface structures. In the case of Cu UPD on Pt(111), the process appears to follow an instantaneous nucleation mechanism in both sulfate and chloride media. Time-resolved surface X-ray scattering studies of Cu UPD on Pt(111) in the presence of chloride demonstrate that the electrochemical relaxation and the achievement of long range order can take place on significantly different time scales. Analysis of time-resolved surface X-ray scattering data allows for the study of the dynamics of island growth.
ChemInform Abstract: Synthesis of New Baccatin III Derivatives Through Transesterification of β‐Keto Esters with a Protected 10‐Deacetylbaccatin III. (2000)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.