gebhart/patrepeval huggingface dataset:
A distributed MAC scheme supporting voice services in mobilead hocnetworks (2009)

Abstract Future mobile ad hoc networks are expected to support voice traffic. The requirement for small delay and jitter of voice traffic poses a significant challenge for medium access control (MAC) in such networks. User mobility presents unique difficulties in this context due to the associated dynamic path attenuation. In this paper, a MAC scheme for mobile ad hoc networks supporting voice traffic is proposed. With the aid of a low‐power probe prior to DATA transmissions, resource reservation is achieved in a distributed manner, thus leading to small packet transmission delay and jitter. The proposed scheme can automatically adapt to dynamic path attenuation in a mobile environment. Statistical multiplexing of on/off voice traffic can also be achieved by partial resource reservation for off voice flows. Simulation results demonstrate the effectiveness of the proposed scheme. Copyright © 2009 John Wiley &amp; Sons, Ltd.
Rapid identification of Streptococcus bovis by using combination constitutive enzyme substrate hydrolyses (1989)

Several studies have documented the association of blood and rectal-culture positivity for Streptococcus bovis with gastrointestinal neoplasia, especially colonic carcinoma. Conventional methods using bile-esculin hydrolysis, salt tolerance, and sugar fermentations to differentiate S. bovis from other streptococci are laborious, slow, and relatively expensive. Commercially available systems are costly and require at least 24 to 48 h of incubation. A rapid identification procedure for S. bovis and related bacteria was developed. The method uses a reagent containing two hydrolyzable substrates, p-nitrophenyl-alpha-D-galactopyranoside and 4-methylumbilliferyl-beta-D-glucoside, in the presence of 2.5% sodium deoxycholate. This combination test, performed with a rapid assay for L-pyrrolidonyl-aminopeptidase, could distinguish S. bovis, Streptococcus equinus, Enterococcus spp., Streptococcus pneumoniae, and the viridans group streptococci in culture within 30 min. Twelve species of the genera Streptococcus and Enterococcus were tested. The rapid method correlated well with conventional techniques. The reagents are readily available, inexpensive, and easy to make and can be stored in the refrigerator for at least 6 months.
Symposium on Interferometry at the National Physical Laboratory, London, England (1959)

"Symposium on Interferometry at the National Physical Laboratory, London, England." Optica Acta: International Journal of Optics, 6(3), pp. 297–298
The Reaction of Nitric Oxide with Triethyl Phosphite (1960)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Reaction of Nitric Oxide with Triethyl PhosphiteLester P. Kuhn, J. Omar Doali, and Carl WellmanCite this: J. Am. Chem. Soc. 1960, 82, 18, 4792–4794Publication Date (Print):September 1, 1960Publication History Published online1 May 2002Published inissue 1 September 1960https://pubs.acs.org/doi/10.1021/ja01503a009https://doi.org/10.1021/ja01503a009research-articleACS PublicationsRequest reuse permissionsArticle Views145Altmetric-Citations21LEARN 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
Low-power smart home node design based on STM32L433 (2018)

This design proposes a low-power node solution based on the Global System for Mobile communication (GSM) wireless sensor network, which aims to solve the problem that the environment does not meet the general node deployment conditions. This program uses STMicroelectronics' STM32L433 ultra-low-power chip as the main control chip to reduce power consumption. The communication adopts the GSM module for communication. The DHT11 is used as the greenhouse acquisition module and the Mipex-02 is used as the smoke sensor. This design is based on GPRS technology, embedded technology, cloud service technology, and jointly build a set of smart home systems. In this paper, the main control ultra-low-power operation is realized by controlling the chip dormancy, and the data acquisition and upload cycle can be set, and then the communication module can be awakened periodically, and an ultra-low power smart home node design is realized.
Thin-Slicing Network: A Deep Structured Model for Pose Estimation in Videos (2017)

Deep ConvNets have been shown to be effective for the task of human pose estimation from single images. However, several challenging issues arise in the video-based case such as self-occlusion, motion blur, and uncommon poses with few or no examples in the training data. Temporal information can provide additional cues about the location of body joints and help to alleviate these issues. In this paper, we propose a deep structured model to estimate a sequence of human poses in unconstrained videos. This model can be efficiently trained in an end-to-end manner and is capable of representing the appearance of body joints and their spatio-temporal relationships simultaneously. Domain knowledge about the human body is explicitly incorporated into the network providing effective priors to regularize the skeletal structure and to enforce temporal consistency. The proposed end-to-end architecture is evaluated on two widely used benchmarks for video-based pose estimation (Penn Action and JHMDB datasets). Our approach outperforms several state-of-the-art methods.
DNA Lipoplexes: Formation of the Inverse Hexagonal Phase Observed by Coarse-Grained Molecular Dynamics Simulation (2010)

Mixtures of dsDNA and lipids, so-called lipoplexes, are widely used as less toxic alternatives to viral vectors in transfection studies. However, the transfection efficiency achieved by lipoplexes is significantly lower than that of viral vectors and is a barrier to their use in the clinic. There is now significant evidence suggesting that the molecular organization and structure (nanoarchitecture) of lipoplexes might correlate with biological activity. As a consequence, the ability to predict quantitatively the nanoarchitecture of new systems, and how these might change intracellularly, would be a major tool in the development of rational discovery strategies for more efficient lipoplex formulations. Here we report the use of a coarse-grain molecular dynamics simulation to predict the phases formed by two lipoplex systems: dsDNA-DOPE and dsDNA-DOPE-DOTAP. The predictions of the simulations show excellent agreement with experimental data from polarized light microscopy and small-angle X-ray diffraction (SAXS); the simulations predicted the formation of phases with d-spacings that were comparable to those measured by SAXS. More significantly, the simulations were able to reproduce for the first time the experimentally observed change from a fluid lamellar to an inverse hexagonal phase in the dsDNA-DOPE-DOTAP system as a function of changes in lipid composition. Our studies indicate that coarse-grain MD simulations could provide a powerful tool to understand, and hence design, new lipoplex systems.
Evolution of Male Pheromones in Moths: Reproductive Isolation Through Sexual Selection? (1987)

Central to our understanding of the species concept is knowledge of the nature and evolution of reproductive isolating mechanisms. The once widely accepted model of Dobzhansky, which holds that isolation evolves through selection against hybrids of differentially adapted populations, is now largely rejected. This rejection is due to both theoretical difficulties and a paucity of examples of the predicted pattern of reproductive character displacement. From a survey of five families of Lepidoptera, entailing more than 800 species, evidence is given that male courtship pheromones have evolved within the context of sexual isolation as an adaptive response to mating mistakes between differentially adapted populations; however, distinct from the natural selection model of Dobzhansky, this report suggests the mechanism for change to be sexual selection.
Surgical Stress and the Heat Shock Response: In Vivo Models of Stress Conditioning (1999)

All forms of surgical therapy are stressful and injurious. The majority of surgical procedures are performed electively and provide an opportunity to condition the patient before surgery to maximize outcome. We have successfully protected the spinal cord and kidneys from warm ischemia-reperfusion injury with whole-body heat shock (42.5 degrees C, 15 min, HS) and recovery (37 degrees C, 6-8 h) before acute aortic occlusion. Control rabbits experienced an 88% incidence of paralysis (7/8) after acute spinal cord ischemia, while HS-pretreated animals never became paralyzed (0/9, p < 0.001). Control pig kidneys showed partial function (4/8 survival) after 90-min warm ischemia, while HS-pretreated kidneys always functioned (8/8 survival, p < 0.04). A positive temporal association was made between the HS-associated functional protection and the enhanced expression of inducible HSP70. The induction of the heat-shock response (cellular stress response) to protect tissues from lethal acute ischemia-reperfusion injury could be employed in a wide range of medical and surgical settings.
Robot portrait rendering based on multi-features fusion method inspired by human painting (2017)

Traditionally, image drawing robot draws a portrait only by generated image, without concerning the certain order of people's facial features. Therefore, to make a portrait, a robot drawing model was proposed. Through geometric and textural features generating algorithm, lines to represent the geometric contours and texture features of human face are captured. Besides, a fusion method is proposed to better strengthen the feature integrity of partial region. The lines represent geometric features and textural features are fused so that a face sketch which is more suitable for robot rendering is obtained. Experimental results show that with our rendering model, robot draws a portrait more effectively. Comparing with the previous robot drawing method, the drawn image contains more information of facial features.
Solid-state fermentation - A mini review (1998)

The increasing interests in biotechnology for the application of fungi on the one hand, and for cheap agricultural products on the other, can be combined in so-called solid-state fermentation (SSF). SSF resembles a close to natural habitat for filamentous microorganisms and can be applied to insoluble substrates. Many applications are described in the literature, ranking from animal feed to production of fine chemicals. The substrates used are, with the exception of synthetic media, cheap agricultural end- and by-products. The fermentation itself can be executed very simply. Several static and dynamic fermenters are described in the literature. Despite the wide applicability and apparent simplicity, fungal SSFs contain complex intrinsic difficulties. Therefore, biological and physical processes in SSF are difficult to control. This report gives an overview of the applications and intrinsic difficulties of SSF.
<title>Sensitivity enhancement in panchromatic photopolymers for holography using a mixture of visible-light photoinitiators</title> (1996)

Photopolymers usually present lower energetic sensitivity, and to narrower wavelength range, than other more conventional recording materials for holography such as dichromated gelatins. We have previously overcome some of these disadvantages using a mixture of visible light photoinitiators. In present communication we describe a new aqueous photopolymer containing the monomers, methylenbisacrylamide and zinc acrylate, the initiators 4,5- diiodosuccinyfluoroscein (2ISF) and methylene blue (MB), and the coinitiator sodium p-toluensulfinate. This formulation exhibits a dramatic enhancement of the energetic sensitivity upon radiation with 514 or 633 nm light (Ar or He-Ne laser respectively), with regard to the same mixture but with only one dye, reaching maximum diffraction efficiencies of 15 - 20% with 15 - 60 mJ cm<SUP>-2</SUP>. This enhancement is explained through a more efficient photogeneration of initiator radicals by the ground-state formation of on ion- pair complex between cationic (MB) and anionic (2ISF) chromophores, the proximity of which must favor electron transfer between groups. This must compensate the observed absorbance decrease at 514 nm, with regard to the absorbance of 2ISF alone in the same medium (maximum absorption at 490 nm). A clear absorbance increase at 633 nm, with regard to the absorbance of MB alone (maximum absorption at 660 nm), must also favor the photopolymerization.
Outcome of hip arthroscopy in patients with mild to moderate osteoarthritis—A prospective study (2015)

Osteoarthritis (OA) of the hip is a common cause of hip pain. The arthroscopic management of patients with femoro-acetabular impingement (FAI) has been reported to yield good outcomes. The purpose of this study was to report on outcome following the arthroscopic treatment of patients with FAI in the presence of mild to moderate OA. Seventy-five patients undergoing arthroscopic surgery for FAI, all with preoperative radiological signs of mild to moderate OA were prospectively included in this study. A 2-year follow-up, using web-based patient-reported outcome measures, including the International Hip Outcome Tool (iHOT-12), Copenhagen Hip and Groin Outcome (HAGOS), EQ-5D, Hip Sports Activity Scale (HSAS) for physical activity level and a visual analogue scale (VAS) for overall hip function, was performed, complemented by a radiographic evaluation. At follow-up (mean 26 months, SD 5), five patients (7%) had undergone total hip arthroplasty, leaving 70 patients for the analysis. Preoperative scores compared with those obtained at the 2-year follow-up revealed significant improvements (P < 0.0001) for all measured outcomes; the iHOT-12 (42 versus 65), VAS for global hip function (48 versus 68), HSAS (2.5 versus 3), EQ5D index (0.62 versus 0.76), EQ VAS (69 versus 75) and different HAGOS subscales (54 versus 72, 47 versus 67, 56 versus 75, 40 versus 61, 33 versus 56, 31 versus 55). At follow-up, 56 (82%) patients reported that they was satisfied with the outcome of surgery. Arthroscopic treatment for patients with FAI in the presence of mild to moderate OA resulted in statistically significant and clinically relevant improvements in outcome measures related to pain, symptoms, function, physical activity level and quality of life in the majority of patients.
Euler characteristics for Gaussian fields on manifolds (2003)

We are interested in the geometric properties of real-valued Gaussian random fields defined on manifolds. Our manifolds, $M$, are of class $C^3$ and the random fields $f$ are smooth. Our interest in these fields focuses on their excursion sets, $f^{-1}[u, +\infty)$, and their geometric properties. Specifically, we derive the expected Euler characteristic $\Ee[\chi(f^{-1}[u, +\infty))]$ of an excursion set of a smooth Gaussian random field. Part of the motivation for this comes from the fact that $\Ee[\chi(f^{-1}[u,+\infty))]$ relates global properties of $M$ to a geometry related to the covariance structure of $f$. Of further interest is the relation between the expected Euler characteristic of an excursion set above a level $u$ and $\Pp[ \sup_{p \in M} f(p) \geq u ]$. Our proofs rely on results from random fields on $\Rr^n$ as well as differential and Riemannian geometry.
Higher Systolic Blood Pressure Is Associated With Increased Water Diffusivity in Normal-Appearing White Matter (2009)

The increase in MD without change in fractional anisotropy indicates that, in normal-appearing white matter, higher BP may be associated with increased extracellular fluid before any cytoarchitectural damage occurs.
Immunocytochemical Characterization of Alzheimer Disease Hallmarks in APP/PS1 Transgenic Mice Treated with a New Anti-Amyloid-βVaccine (2013)

APP/PS1 double-transgenic mouse models of Alzheimer's disease (AD), which overexpress mutated forms of the gene for human amyloid precursor protein (APP) and presenilin 1 (PS1), have provided robust neuropathological hallmarks of AD-like pattern at early ages. This study characterizes immunocytochemical patterns of AD mouse brain as a model for human AD treated with the EB101 vaccine. In this novel vaccine, a new approach has been taken to circumvent past failures by judiciously selecting an adjuvant consisting of a physiological matrix embedded in liposomes, composed of naturally occurring phospholipids (phosphatidylcholine, phosphatidylglycerol, and cholesterol). Our findings showed that administration of amyloid-β₁₋₄₂ (Aβ) and sphingosine-1-phosphate emulsified in liposome complex (EB101) to APP/PS1 mice before onset of Aβ deposition (7 weeks of age) and/or at an older age (35 weeks of age) is effective in halting the progression and clearing the AD-like neuropathological hallmarks. Passive immunization with EB101 did not activate inflammatory responses from the immune system and astrocytes. Consistent with a decreased inflammatory background, the basal immunological interaction between the T cells and the affected areas (hippocampus) in the brain of treated mice was notably reduced. These results demonstrate that immunization with EB101 vaccine prevents and attenuates AD neuropathology in this type of double-transgenic mice.
222Rn EMANATION FROM URANIUM-GLAZED CERAMICS (2001)

Orange-red uranium-glazed dinnerware was found to emanate 222Rn to produce an average of less than 0.1 Bq 222Rn decay per piece, which should have no associated health risks. Comparison of 222Rn emanation to 226Ra in glazes (measured by alpha spectrometry) indicated inefficient emanation (<5%) of 222Rn, consistent with the low radon levels observed and with the presence of 222Rn progeny in glazes. These studies also showed that reagent grade uranium compounds may emanate measurable 222Rn.
Exendin-4 attenuates high glucose-induced cardiomyocyte apoptosis via inhibition of endoplasmic reticulum stress and activation of SERCA2a (2013)

Hyperglycemia-induced cardiomyocyte apoptosis contributes to diabetic cardiomyopathy. Glucagon-like peptide-1 (Glp1) receptor (Glp1r) agonists improve cardiac function and survival in response to ischemia-reperfusion and myocardial infarction. The present studies assessed whether Glp1r activation exerts direct cardioprotective effects in response to hyperglycemia. Treatment with the Glp1r agonist Exendin-4 attenuated apoptosis in neonatal rat ventricular cardiomyocytes cultured in high (33 mM) glucose. This protective effect was mimicked by the cAMP inducer forskolin. The Exendin-4 protective effect was blocked by the Glp1r antagonist Exendin(9-39) or the PKA antagonist H-89. Exendin-4 also protected cardiomyocytes from hydrogen peroxide (H2O2)-induced cell death. Cardiomyocyte protection by Exendin-4 was not due to reduced reactive oxygen species levels. Instead, Exendin-4 treatment reduced endoplasmic reticulum (ER) stress, demonstrated by decreased expression of glucose-regulated protein-78 (GRP78) and CCAT/enhancer-binding homologous protein (CHOP). Reduced ER stress was not due to activation of the unfolded protein response, indicating that Exendin-4 directly prevents ER stress. Exendin-4 treatment selectively protected cardiomyocytes from thapsigargin- but not tunicamycin-induced death. This suggests that Exendin-4 attenuates thapsigargin-mediated inhibition of the sarco/endoplasmic reticulum Ca(2+) ATPase-2a (SERCA2a). High glucose attenuates SERCA2a function by reducing SERCA2a mRNA and protein levels, but Exendin-4 treatment prevented this reduction. Exendin-4 treatment also enhanced phosphorylation of the SERCA2a regulator phospholamban (PLN), which would be expected to stimulate SERCA2a activity. In sum, Glp1r activation attenuates high glucose-induced cardiomyocyte apoptosis in association with decreased ER stress and markers of enhanced SERCA2a activity. These findings identify a novel mechanism whereby Glp1-based therapies could be used as treatments for diabetic cardiomyopathy.
Characterisation of aqueous waste produced during the clandestine production of amphetamine following the Leuckart route utilising solid‐phase extraction gas chromatography–mass spectrometry and capillary electrophoresis with contactless conductivity detection (2018)

Chemical waste from the clandestine production of amphetamine is of forensic and environmental importance due to its illegal nature which often leads to dumping into the environment. In this study, 27 aqueous amphetamine waste samples from controlled Leuckart reactions performed in Germany, the Netherlands, and Poland were characterised to increase knowledge about the chemical composition and physicochemical characteristics of such waste. Aqueous waste samples from different reaction steps were analysed to determine characteristic patterns which could be used for classification. Conductivity, pH, density, ionic load, and organic compounds were determined using different analytical methods. Conductivity values ranged from 1 to over 200 mS/cm, pH values from 0 to 14, and densities from 1.0 to 1.3 g/cm<sup>3</sup> . A capillary electrophoresis method with contactless conductivity detection (CE-C<sup>4</sup> D) was developed and validated to quantify chloride, sulphate, formate, ammonium, and sodium ions which were the most abundant ions in the investigated waste samples. A solid-phase extraction sample preparation was used prior to gas chromatography-mass spectrometry analysis to determine the organic compounds. Using the characterisation data of the known samples, it was possible to assign 16 seized clandestine waste samples from an amphetamine production to the corresponding synthesis step. The data also allowed us to draw conclusions about the synthesis procedure and used chemicals. The presented data and methods could support forensic investigations by showing the probative value of synthesis waste when investigating the illegal production of amphetamine. It can also act as starting point to develop new approaches to tackle the problem of clandestine waste dumping.
Catalyst-Controlled Aliphatic C–H Oxidations with a Predictive Model for Site-Selectivity (2013)

Selective aliphatic C-H bond oxidations may have a profound impact on synthesis because these bonds exist across all classes of organic molecules. Central to this goal are catalysts with broad substrate scope (small-molecule-like) that predictably enhance or overturn the substrate's inherent reactivity preference for oxidation (enzyme-like). We report a simple small-molecule, non-heme iron catalyst that achieves predictable catalyst-controlled site-selectivity in preparative yields over a range of topologically diverse substrates. A catalyst reactivity model quantitatively correlates the innate physical properties of the substrate to the site-selectivities observed as a function of the catalyst.