gebhart/patrepeval huggingface dataset:
Allyl Ethers of Carbohydrates. VI. Polymerization of Allyl Ethers (1948)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAllyl Ethers of Carbohydrates. VI. Polymerization of Allyl EthersA. N. Wrigley and E. YanovskyCite this: J. Am. Chem. Soc. 1948, 70, 6, 2194–2196Publication Date (Print):June 1, 1948Publication History Published online1 May 2002Published inissue 1 June 1948https://pubs.acs.org/doi/10.1021/ja01186a060https://doi.org/10.1021/ja01186a060research-articleACS PublicationsRequest reuse permissionsArticle Views177Altmetric-Citations10LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Genetic counseling in an extended attenauted familial adenomatous polyposis kindred. (1996)

When DNA-based testing is offered to AFAP family members, genetic counselors must compassionately consider patients' psychological concerns when providing detailed risk status and available surveillance and management programs.
RT-variation of the photochromic properties of spirooxazine trapped in organic-inorganic hybrid matrices in the course of the sol-wetgel-xerogel transformation (1995)

In a photochromic system host matrices significantly affect the photochromic properties of the encapsulated organic dye. They must be prepared at temperatures considerably below the decomposition point of the dye, and they should have sufficient free volume for the structural rearangement to take place. The low-temperature, wet-chemical characteristics of sol-gel process and the pore structure of the gels make these requirements excellently satisfied. In this work, organically modified silanes, ethyltrimethoxysilane (ETMS) and 3-glycidyloxypropyltrimehtosysilane (GPTMS) are used as starting materials to prepare gels doped with spirooxazine. Room temperature (RT)-variation of the photochromic properties in the organic-inorganic hybrid matrices (OIHM) containing NaF or bisphenol-A (BPA) is monitored during the sol-wet gel-xerogel transfromation process. Without the addition of BPA, both the photochromic intensity (DeltaAo) and the half-life time(t 0.5) decrease and level off in the wetgel-xerogel stage, while with the addition of BPA they increase and level off in the wetgel-xerogel stage. These results are discussed in terms of viscosity growth, pore structure formation, increase of polarity and steric hindrance.
Emerging science on whole grain intake and inflammation (2019)

Although the biological mechanisms surrounding the widely reported association between whole grain (WG) consumption and reduced risk of several diseases are not fully understood, there is growing evidence suggesting that inflammation may be an essential mediator in this multifaceted process. It also appears that several mechanisms influence the modulatory actions of WGs on inflammation, including the effect of fiber, phytochemicals, and their microbial-derived metabolites. While some of these effects are direct, others involve gut microbiota, which transform important bioactive substances into more useful metabolites that moderate inflammatory signaling pathways. This review evaluates emerging evidence of the relationship between WGs and their effects on markers of subclinical inflammation, and highlights the role of fiber, unique WG phytochemicals, and gut microbiota on the anti-inflammatory effects of WG intake.
Acousto-Optic Beam Steering Study (1994)

Abstract : This is the final report for a 21 month study investigating the use of acoustic-optic beam steering for inter-satellite laser communications (lasercom). The basic technique is demonstrated in a breadboard that uses a customized 2-dimensional acoustic-optic Bragg cell deflector and a magnifying optical system comprised entirely of off-the-shelf components. The breadboard was designed to steer a laser over a range of 360 x 36 degrees. Important characteristics of the acoustic-optic Bragg deflector include high angular resolution, fast switching speed, high electrical and optical efficiency, and high reliability with no moving parts.
Prediction of airborne and structure borne sound transmission through hearing protectors using FEM (2014)

Individual hearing protection is a short term solution frequently used to protect workers against noise exposure. This work is part of a larger research program on the evaluation of real world attenuation of hearing protection devices (HPD) such as earplugs and earmuffs. Its objective is to develop a Finite Element (FE) model to predict both the airborne and structure borne sound transmission through an ear canal/hearing protector system. The model can help providing a better understanding of the acoustical behavior of this system and hence help designing better HPD ultimately. FEM can account for realistic ear and hearing protector geometries, materials with complicated physical behavioral laws and complex transmission phenomena through the different coupled domains in particular the tissues surrounding the ear canal. Several comparisons between numerical predictions and experimental results are presented. The sound transmission through the system is investigated using power balances and sensitivity analyses are carried out to identify the key parameters which govern the acoustic behavior of the system. The importance of parameters such as the system geometry, the coupling between the different domains and the loadings is discussed together with the characterization of the physical properties of each domain.
ChemInform Abstract: Asymmetric Tandem Reaction: Beckmann Rearrangements/Allylsilane Cyclizations: Approach to the Optically Active Cephalotaxine‐Framework. (1997)

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.
Effect of metal side claddings on emission decay rates of single quantum dots embedded in a sub-wavelength semiconductor waveguide (2016)

Abstract We experimentally investigate the emission decay rates of self-assembled single InAs quantum dots (QDs) embedded in sub-wavelength semiconductor waveguides with and without metal side claddings. Compared with as-grown single QDs, we observe a clear suppression (enhancement) in the radiative decay rates of single InAs QDs embedded in the sub-wavelength semiconductor waveguides without (with) metal cladding, respectively. The decay rate for QDs in metal-clad waveguides is ∼2 times faster than that in waveguides without metal. Numerical calculations using models that include the effects of structural imperfections show good agreement with the experimental results, and reveal that the most important structural imperfection is the gap between the metal and the semiconductor.
Evaluation of the oral bioavailability of low molecular weight heparin formulated with glycyrrhetinic acid as permeation enhancer (2006)

Low molecular weight heparin (LMWH) is the agent of choice for anticoagulant therapy and prophylaxis of thrombosis and coronary syndromes. However, its therapeutic use is limited due to poor oral bioavailability. The aim of this study was to investigate the oral delivery of LMWH, ardeparin formulated with 18-beta glycyrrhetinic acid (GA), as an alternative to currently used subcutaneous (sc) delivery. Drug transport through Caco-2 cell monolayers was monitored in the presence and absence of GA by scintillation counting and transepithelial electrical resistance. Regional permeability studies using rat intestine were performed using a modified Ussing chamber. Cell viability in the presence of various concentrations of enhancer was determined by MTT assay. The absorption of ardeparin after oral administration in rats was measured by an anti-factor Xa assay. Furthermore, the eventual mucosal epithelial damage was histologically evaluated. Higher ardeparin permeability (~7-fold) compared to control was observed in the presence of 0.02 % GA. Regional permeability studies indicated predominant absorption in the duodenal segment. Cell viability studies showed no significant cytotoxicity below 0.01 % GA. Ardeparin oral bioavailability was significantly increased (F(relative)/(S.C). = 13.3%) without causing any damage to the intestinal tissues. GA enhanced the oral absorption of ardeparin both in vitro and in vivo. The oral formulation of ardeparin with GA could be absorbed in the intestine. These results suggest that GA may be used as an absorption enhancer for the oral delivery of LMWH.
Comparative study of six rotary nickel–titanium systems and hand instrumentation for root canal preparation (2005)

Under the conditions of this ex vivo study all Ni-Ti systems maintained the canal curvature, were associated with few instrument fractures and were more rapid than a standardized manual technique. ProTaper instruments created more regular canal diameters.
Expression of functional receptors for human C5a anaphylatoxin (CD88) on the human hepatocellular carcinoma cell line HepG2. Stimulation of acute-phase protein-specific mRNA and protein synthesis by human C5a anaphylatoxin (1995)

Acute inflammation is characterized by increased production of acute phase proteins in the liver. The induction of the hepatocytic response is primarily mediated through soluble cytokines such as IL-1, IL-6, TNF-alpha, and transforming growth factor beta, which bind to specific cell surface receptors and regulate gene expression of acute-phase proteins. Hepatoma cell lines, such as HepG2, represent a model system for studying acute-phase protein synthesis. HepG2 is induced to produce a variety of acute-phase proteins, including alpha 1-antitrypsin, alpha 1-antichymotrypsin, fibrinogen, alpha 1-acid glycoprotein, and haptoglobin, upon stimulation with cytokines. Analysis of HepG2 by reverse transcriptase PCR indicated that this cell line synthesized mRNA specific for the human C5a receptor (CD88). Flow cytometric analysis of HepG2 cells indicated that these cells bound anti-CD88 Ab, thus confirming our RT-PCR data by demonstrating that these cells also express the C5a receptor. Because C5a has been shown to be a potent mediator of inflammation and HepG2 cells express CD88, we assessed the possibility that C5a was capable of stimulating acute-phase protein synthesis by HepG2 cells. The results indicate that binding of human C5a to CD88 on HepG2 cells resulted in an increased production of alpha 1-antitrypsin- and alpha 1-antichymotrypsin-specific mRNA as assayed by RT-PCR. Analysis of culture supernatants derived from C5a-stimulated HepG2 cells showed an increased production of alpha 1-antitrypsin as measured by solid-phase ELISA. alpha 1-antitrypsin production by HepG2 cells was a direct result of C5a stimulation as evidenced by the fact that anti-C5a receptor Ab inhibited the response. These results suggest that C5a may be an important mediator of APP production in the regulation of the inflammatory response.
An Area-Efficient Rectifier with Threshold Voltage Cancellation for Intra-Body Power Transfer (2019)

In this paper, the feasibility of the intra-body power transfer is verified and an area-efficient rectifier with threshold voltage cancellation for intra-body power transfer is proposed. Through the measurement, the optimum power transmission frequency is determined as 1 MHz. Since the transmission voltage gain is sufficiently high (about 0.3) and nearly constant over a wide range of the load resistance, the intra-body power transfer works well even with the nonlinear and varying input impedance of the rectifier that is placed right after the receiving electrode. The proposed area-efficient rectifier cancels the threshold voltage by using a diode-connected device with a dynamically biased current source. It achieves a considerably smaller area of 65 μm × 30 μm than the area consumed by other designs reported previously. The overall power conversion efficiency (PCE) and voltage conversion ratio (VCR) are also improved. It achieves 84.4% of PCE and 85.6% of VCR with 1-V input voltage and 40-kΩ load.
Long-Term Behavioral Programming Induced by Peripuberty Stress in Rats Is Accompanied by GABAergic-Related Alterations in the Amygdala (2014)

Stress during childhood and adolescence is a risk factor for psychopathology. Alterations in γ-aminobutyric acid (GABA), the main inhibitory neurotransmitter in the brain, have been found following stress exposure and fear experiences and are often implicated in anxiety and mood disorders. Abnormal amygdala functioning has also been detected following stress exposure and is also implicated in anxiety and social disorders. However, the amygdala is not a unitary structure; it includes several nuclei with different functions and little is known on the potential differences the impact of early life stress may have on this system within different amygdaloid nuclei. We aimed here to evaluate potential regional differences in the expression of GABAergic-related markers across several amygdaloid nuclei in adult rats subjected to a peripuberty stress protocol that leads to enhanced basal amygdala activity and psychopathological behaviors. More specifically, we investigated the protein expression levels of glutamic acid decarboxylase (GAD; the principal synthesizing enzyme of GABA) and of GABA-A receptor subunits α2 and α3. We found reduced GAD and GABA-A α3, but not α2, subunit protein levels throughout all the amygdala nuclei examined (lateral, basolateral, basomedial, medial and central) and increased anxiety-like behaviors and reduced sociability in peripubertally stressed animals. Our results identify an enduring inhibition of the GABAergic system across the amygdala following exposure to early adversity. They also highlight the suitability of the peripuberty stress model to investigate the link between treatments targeting the dysfunctional GABAergic system in specific amygdala nuclei and recovery of specific stress-induced behavioral dysfunctions.
Fluorescent Alloy CsPbxMn1–xI3 Perovskite Nanocrystals with High Structural and Optical Stability (2017)

CsPbI<sub>3</sub> nanocrystals are still limited in their use because of their phase instability as they degrade into the yellow nonemitting δ-CsPbI<sub>3</sub> phase within a few days. We show that alloyed CsPb <sub><i>x</i></sub> Mn<sub>1-<i>x</i></sub> I<sub>3</sub> nanocrystals have essentially the same optical features and crystal structure as the parent α-CsPbI<sub>3</sub> system, but they are stable in films and in solution for periods over a month. The stabilization stems from a small decrease in the lattice parameters slightly increasing the Goldsmith tolerance factor, combined with an increase in the cohesive energy. Finally, hybrid density functional calculations confirm that the Mn<sup>2+</sup> levels fall within the conduction band, thus not strongly altering the optical properties.
Proceedings of the Sixth International Workshop on Web Caching and Content Distribution (2001)

OVERVIEW&#13;\n &#13;\n The International Web Content Caching and Distribution Workshop (WCW) is a premiere technical meeting for researchers and practitioners interested in all aspects of content caching, distribution and delivery on the Internet. The 2001 WCW meeting was held on the Boston University Campus. Building on the successes of the five previous WCW meetings, WCW01 featured a strong technical program and record participation from leading researchers and practitioners in the field. This report includes all the technical papers presented at WCW'01.&#13;\n &#13;\nNote: Proceedings of WCW'01 are published by Elsevier. Hardcopies of these proceedings can be purchased through the workshop organizers. As a service to the community, electronic copies of all WCW'01 papers are accessible through Technical Report BUCS‐TR‐2001‐017, available from the Boston University Computer Science Technical Report Archives at http://www.cs.bu.edu/techreps. [Ed.note: URL outdated. Use http://www.bu.edu/cs/research/technical-reports/ or http://hdl.handle.net/2144/1455 in this repository to access the reports.]
Allergen-sensitive atopic dermatitis is improved by injections of allergen combined with F(ab′)2 fragments of specific antibodies (2006)

Symptoms of atopic dermatitis (AD) can be provoked by exposure to airborne allergens. We have previously shown that patients hypersensitive to D. pteronyssinus (Dpt) allergens were improved by administration of complexes composed of specific antibodies and allergen, which reduce the allergen-specific immune response. We now report that similar results can be achieved by using F(ab')2 fragments of specific antibodies instead of whole antibody molecules. Eight adult patients with severe AD were included in a single-blind study. During the first 11 months patients were maintained on injections of carrier buffer alone, in an effort to evaluate the extent of spontaneous improvement. They were then treated with intradermal injections of allergen-F(ab')2 complexes made from autologous specific antibodies and Dpt allergens. The majority of the patients improved spontaneously during the summer months, with an average 30% reduction of symptoms. However, a much more pronounced improvement was observed after 3 months on active therapy, corresponding to a cumulative amount of 60 micrograms F(ab')2 and 15 micrograms allergens. The patients continued to improve over the next 5 months, showing an average 83% reduction of severity scores. The use of F(ab')2 antibody fragments reduces the risk of inducing an anti-allotypic immune response, and raises the possibility of adding adjuvants to allergen-antibody complexes and/or using specific antibodies isolated from pooled gammaglobulins.
Stability of Regime-Switching Diffusion Systems with Discrete States Belonging to a Countable Set (2018)

This work focuses on the stability of regime-switching diffusions consisting of continuous and discrete components, in which the discrete component switches in a countably infinite set and its switching rates at the current time depend on the continuous component. In contrast to the existing approach, this work provides a more practically viable approach with more feasible conditions for stability. A classical approach for asymptotic stability using Lyapunov function techniques shows that the Lyapunov function evaluated at the solution process goes to 0 as time $t\to\infty$. A distinctive feature of this paper is the precise estimate of pathwise rates of convergence, which pinpoint how fast the aforementioned convergence takes place. In addition, some examples are given to illustrate our findings.
Comparing National Institutes of Health Stroke Scale Among a Stroke Team and Helicopter Emergency Medical Service Providers (2014)

HEMS providers can administer NIHSS with moderate to good agreement with the receiving stroke team. The use of the NIHSS in HEMS may identify patients with LVO and inform triage decisions for patients ineligible for tissue-type plasminogen activator.
Optical Access to Arteriovenous Cerebral Microcirculation Through a Transparent Cranial Implant (2019)

This study demonstrates the ability to perform MSRI-LSI across a transparent cranial implant, to allow for cerebral vascular networks to be mapped, including microvessels. These images contain additional information such as vein-artery separation and relative blood flow velocities, information which is of value scientifically and medically. The WttB implant provides substantial improvements over imaging through the murine cranial bone, where microvessels are not visible and MSRI cannot be performed. Lasers Surg. Med. © 2019 Wiley Periodicals, Inc.
Reducing transfer delay using Java class file splitting and prefetching (1999)

The proliferation of the Internet is fueling the development of mobile computing environments in which mobile code is executed on remote sites. In such environments, the end user must often wait while the mobile program is transferred from the server to the client where it executes. This downloading can create significant delays, hurting the interactive experience of users.
Evaluation of blood flow at ocular fundus using laser speckle phenomena (II) (1989)

A method is studied for evaluating the blood flow at the ocular fundus using laser speckle phenomena. The intensity fluctuation of time-varying speckles scattered from a 1-mm diam probe area at the fundus is detected and analyzed by the photon correlation technique which gives us the relative degree of total blood flows within the probe area. The experiments were performed to evaluate the blood flows in a glass capirally and at the ocular fundus of a rabbit. The results show the usefulness of the photon correlation technique for obtaining the blood flow information from speckle signals.
Wavenumber-based filtering of marine point-source data (1993)

Abstract In seismic processing, plane-wave decomposition has played a fundamental role, serving as a basis for developing sophisticated processing techniques valid for depth-dependent models. By comparing analytical expressions for the decomposed wavefields, we review several processing algorithms of interest for the geophysicist. The algorithms may be applied to marine point-source data acquired over a horizontally layered viscoelastic and anisotropic medium. The plane-wave decomposition is based on the Fourier transform integral for line-source data and the Hankel transform integral for point-source data. The involved wavenumber integrals of the cosine or Bessel-function type are difficult to evaluate accurately and efficiently. However, a number of the processing techniques can easily be run as a filtering operation in the spatial domain without transforming to the wavenumber domain. The mathematical expressions for the spatial filters are derived using plane wave analysis. With numerical examples, we demonstrate the separation of upgoing and downgoing waves from the pressure, the removal of the source ghost from the pressure, and the transformation of point-source pressure data to the corresponding line-source data. The filters for these three processes work satisfactorily.Limited spatial aperture is discussed both for point-source and line-source data. The resolution kernels relating finite-aperture decomposed data to infinite-aperture decomposed data are given. The kernels are approximately equal in the asymptotic limit when the minimum offset is zero.