gebhart/patrepeval huggingface dataset:
Strong impact of lattice vibrations on electronic and magnetic properties of paramagnetic Fe revealed by disordered local moments molecular dynamics (2016)

We study the impact of lattice vibrations on magnetic and electronic properties of paramagnetic bcc and fcc iron at finite temperature, employing the disordered local moments molecular dynamics (DLM-MD) method. Vibrations strongly affect the distribution of local magnetic moments at finite temperature, which in turn correlates with the local atomic volumes. Without the explicit consideration of atomic vibrations, the mean local magnetic moment and mean field derived magnetic entropy of paramagnetic bcc Fe are larger compared to paramagnetic fcc Fe, which would indicate that the magnetic contribution stabilizes the bcc phase at high temperatures. In the present study we show that this assumption is not valid when the coupling between vibrations and magnetism is taken into account. At the $\ensuremath{\gamma}\text{--}\ensuremath{\delta}$ transition temperature (1662 K), the lattice distortions cause very similar magnetic moments of both bcc and fcc structures and hence magnetic entropy contributions. This finding can be traced back to the electronic densities of states, which also become increasingly similar between bcc and fcc Fe with increasing temperature. Given the sensitive interplay of the different physical excitation mechanisms, our results illustrate the need for an explicit consideration of vibrational disorder and its impact on electronic and magnetic properties to understand paramagnetic Fe. Furthermore, they suggest that at the $\ensuremath{\gamma}\text{--}\ensuremath{\delta}$ transition temperature electronic and magnetic contributions to the Gibbs free energy are extremely similar in bcc and fcc Fe.
Nerve repair by means of vein filled with muscle grafts. II. Morphological analysis of regeneration (2000)

The morphological features of regeneration in long-distance (3 cm) muscle-vein-combined grafts were experimentally investigated in the rat sciatic nerve by means of light and electron microscopy. In the early phases of regeneration (14 days after surgery), many regenerating nerve fibers were detected along the muscle-vein-combined graft. Six months after surgery, quantitative morphometrical analysis of myelinated nerve fibers showed that both the total number and density of myelinated nerve fibers were significantly greater in regenerated nerves than in control nerves. The contrary appeared true for the mean fiber size, with fiber size significantly smaller in regenerated nerves. Ultrastructural observations allowed the description of some peculiar aspects of the relationship between muscle fibers, nerve fibers, and Schwann cells in both early and late phases of regeneration.
Real-Time Stereo Vision for Road Surface 3-D Reconstruction (2018)

Stereo vision techniques have been widely used in civil engineering to acquire 3-D road data. The two important factors of stereo vision are accuracy and speed. However, it is very challenging to achieve both of them simultaneously and therefore the main aim of developing a stereo vision system is to improve the trade-off between these two factors. In this paper, we present a real-time stereo vision system used for road surface 3- D reconstruction. The proposed system is developed from our previously published 3-D reconstruction algorithm where the perspective view of the target image is first transformed into the reference view, which not only increases the disparity accuracy but also improves the processing speed. Then, the correlation cost between each pair of blocks is computed and stored in two 3-D cost volumes. To adaptively aggregate the matching costs from neighbourhood systems, bilateral filtering is performed on the cost volumes. This greatly reduces the ambiguities during stereo matching and further improves the precision of the estimated disparities. Finally, the subpixel resolution is achieved by conducting a parabola interpolation and the subpixel disparity map is used to reconstruct the 3-D road surface. The proposed algorithm is implemented on an NVIDIA GTX 1080 GPU for the real-time purpose. The experimental results illustrate that the reconstruction accuracy is around 3 mm.
An Improvement to Mathon's Cyclotomic Ramsey Colorings (2009)

In this note we show how to extend Mathon's cyclotomic colorings of the edges of some complete graphs without increasing the maximum order of monochromatic complete subgraphs. This improves the well known lower bound construction for multicolor Ramsey numbers, in particular we obtain $R_3(7) \ge 3214$.
CHAUSSEES EN BETON - REALISATION - LES JOINTS INSERES DANS LE BETON FRAIS. BILAN DE L'UTILISATION DE LA MACHINE EDOCO SUR TROIS GRANDS CHANTIERS (1978)

ACTUELLEMENT, IL N'EST PAS POSSIBLE DE REALISER UN REVETEMENT CONTINU EN BETON NON ARME. L'AUTEUR EXAMINE LES RAISONS QUI RENDENT NECESSAIRE LA LOCALISATION DE LA FISSURATION DES REVETEMENTS EN BETON NON ARME. LE CONTROLE DE LA FISSURATION EST REALISE DEPUIS UNE QUINZAINE D'ANNEES PAR SCIAGE D'UNE AMORCE DE FISSURE DANS LE BETON DURCI JEUNE. LES DIFFICULTES QUI APPARAISSENT A L'APPLICATION DE CETTE TECHNIQUE, AINSI QUE SES LIMITES D'EMPLOI ACTUELLES, SONT EXAMINEES PAR L'AUTEUR. ON INDIQUE LES RESULTATS OBTENUS LORS DE L'UTILISATION D'UNE MACHINE REALISANT LES JOINTS DANS LE BETON FRAIS SUR TROIS GRANDS CHANTIERS RECENTS. LA MACHINE EDOCO PERMET, DANS CERTAINES CONDITIONS TRES PARTICULIERES, DE CONTROLER LA FISSURATION DU REVETEMENT MIEUX QUE LE SCIAGE. EN REVANCHE, LA BANDE DE PLASTIQUE INTRODUITE PAR CETTE MACHINE N'ASSURE PAS L'ETANCHEITE, QUI DOIT ETRE FAITE APRES SCIAGE DU JOINT. LORSQU'ELLE EST BIEN REGLEE, LA MACHINE EDOCO PERMET D'OBTENIR UN RESULTATS MOYEN : - DEFAUT D'UNI DANS LES FORTES PENTES, FAIBLEMENT PERCEPTIBLE PAR L'USAGER ; - ABSENCE DE RECTITUDE ET SINUOSITE DE LA BANDE NE PERMETTANT PAS UN SCIAGE CORRECT POUR ETANCHER LES JOINTS ; - RISQUE D'EPAUFRURE D'AUTANT PLUS FAIBLE QUE LE TRAFIC EST FAIBLE (A).
Using Dilute Hydrogen Flows to Tailor Indium Incorporation during InGaN Growth. (2020)

Abstract not provided.
Role of protic and dipolar aprotic solvents in cycloaddition reactions involving anionic 1,3-dipoles. Action of inorganic azides on imidoyl chlorides (1976)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRole of protic and dipolar aprotic solvents in cycloaddition reactions involving anionic 1,3-dipoles. Action of inorganic azides on imidoyl chloridesPankaja K. KadabaCite this: J. Org. Chem. 1976, 41, 6, 1073–1075Publication Date (Print):March 1, 1976Publication History Published online1 May 2002Published inissue 1 March 1976https://pubs.acs.org/doi/10.1021/jo00868a035https://doi.org/10.1021/jo00868a035research-articleACS PublicationsRequest reuse permissionsArticle Views274Altmetric-Citations28LEARN 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
Towards Profiling Program Instances in Host-Based Intrusion Detection Systems by Recognizing Software Update Patterns (2018)

Host intrusion detection systems are used to analyze internal events on host machines and detect behavioral patterns that differ from normal operation of the system and its processes. One important aspect in observing the behavior of processes are the application updates that may change the behavior of an application but also potentially help to build a profile for the application when observing its update patterns. In this study, we observe update frequencies and patterns of a set of applications on 100 machines during an analysis period of 100 days. Our preliminary results indicate that it is possible to detect clear software update patterns that can be used for profiling processes.
Enhanced Performance of a Polymer Solar Cell upon Addition of Free-Standing, Freshly Etched, Photoluminescent Silicon Nanocrystals (2012)

We demonstrate an organic–inorganic hybrid solar cell using poly(3-hexylthiophene) (P3HT)/[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) and silicon nanocrystals (Si-NCs). To achieve an enhanced response in the hybrid layer, Si-NCs were freshly etched and blended with P3HT/PCBM. The incorporation of Si-NCs into the bulk heterojunction structure induced the coupling of optical excitation between the polymers and Si-NCs and led to an extended optical excitation response. A hybrid solar cell exhibited a 26% increase in JSC relative to an identical cell prepared without the Si-NCs. Consequently, improved power conversion efficiency is obtained by the addition of Si-NCs into polymers.
TinyML Techniques for running Machine Learning models on Edge Devices (2022)

Resource-constrained platforms such as micro-controllers are the workhorses in embedded systems, being deployed to capture data from sensors and send the collected data to cloud for processing. Recently, a great interest is seen in the research community and industry to use these devices for performing Artificial Intelligence/Machine Learning (AI/ML) inference tasks in the areas of computer vision, natural language processing, machine monitoring etc. leading to the realization of embedded intelligence at the edge. This task is challenging and needs a significant knowledge of AI/ML applications, algorithms, and computer architecture and their interactions to achieve the desired performance. In this tutorial we cover a few aspects that will help embedded systems designers and AI/ML engineers and scientists to deploy the AI/ML models on the Tiny Edge Devices at an optimum level of performance.
The design of dual radio ZigBee homecare gateway for remote patient monitoring (2013)

A Dual Radio ZigBee Homecare Gateway (DRZHG) has been proposed and implemented to support remote patient monitoring. The novelty of DR-ZHG is two-fold. Firstly, it increases the transmission data rate of ZigBee. The Dual Radio ZigBee design furnishes low latency and highly accurate telehealth service at home. Secondly, the zero-configuration design of the DR-ZHG offers the most user friendly telehealth service to elderly people and long-terms patients. Analysis reveals that, for streaming data devices, the network depth should be confined to three (3) in a ZigBee tree network. As for polling data devices, it is analyzed that nine (9) sensors can be supported in a single hop communication. To align with the maximum hop count of three (3) for streaming devices, seven (7) polling devices can be accommodated. In summary, the developed DR-ZHG supports seven (7) polling service sensors and one (1) streaming service senor. Such a gateway meets the general latency standard of 2s for telemedicine services as stipulated by U.S. NIST.
Ge22As20Se58 glass ultrafast laser inscribed waveguides for mid-IR integrated optics (2018)

Ultrafast laser inscription has been used to produce channel waveguides in Ge22As20Se58 glass (GASIR-1, Umicore N.V). The mode field diameter and waveguide losses at 2.94 μm were measured along with the waveguide dispersion in the 1 to 4.5 μm range, which is used to estimate the zero-dispersion wavelength. Z-scan measurements of bulk samples have also been performed to determine the nonlinear refractive index. Finally, mid-IR supercontinuum generation has been shown when pumping the waveguides with femtosecond pulses centered at 4.6 μm. Supercontinuum spanning approximately 4 μm from 2.5 to 6.5 μm was measured which, to the best of the authors’ knowledge, represents the broadest and the deepest IR supercontinuum from an ultrafast laser inscribed waveguide to date. This work, combined with the long wavelength transmission of GASIR-1 up to 15 μm, paves the way for realizing further ultrafast laser inscribed waveguide devices in GASIR-1 for mid-IR integrated optics applications.
Reconstructive potential of the lateral arm flap after tumor resection (2007)

The reconstruction of extended tumor-related defects in different anatomic regions requires a versatile and reliable flap. For many surgeons, the lateral arm flap has become the technique of choice in the reconstruction of small- to medium-sized defects. The aim of this study was to analyze the reconstructive potential of the lateral arm flap after cancer ablation in various indications. Between 1998 and 2006, 14 patients underwent reconstruction with differently composed and designed lateral arm flaps at our institution. Complete coverage of all defects was achieved with a single surgical procedure. With a flap survival rate of 100% in our series, excellent long term results and high patient satisfaction combined with low donor site morbidity, we can recommend the use of the lateral arm flap in tumor patients.
Aspects of galvanic action of zinc-rich paints. Electrochemical investigation of eight commercial primers (1985)

Comparison of ethyl silicate and epoxy paints rich in zinc for the protection of steel structures.
Laser Diode Characteristics In The Presence Of Optical Feedback (1990)

A considerable linewidth narrowing may be achieved with optical feedback. On the other hand, optical feedback may introduce tremendeous instabilities with strong noise. By considering single-mode laser diodes the underlying phenomena are reviewed.
PTEN and HER2 regulate self-renewal and invasion of human mammary stem cells. (2007)

1287 There is increasing evidence in breast cancers as well as other malignancies that tumorigenesis is driven by a cell population that retains stem cell properties. The key property of stem cells is their ability to self-renew. Thus, the elucidation of pathways which regulate stem cell self-renewal is important in understanding mammary carcinogenesis and of developing agents which can target the tumor stem cell pool. Two genes frequently deregulated in human breast cancers are HER2 and PTEN. HER2 is amplified in approximately 20-25% of human breast carcinomas and is associated with a poor clinical outcome. The lipid phosphatase PTEN is deregulated in approximately 40% of human breast carcinomas and is associated with increased Akt activation and poor clinical outcome. Patients with a combined loss of PTEN and HER2 amplification have a worse prognosis than either molecular defect alone. In order to study the effect of deregulation of these pathways we utilized both MCF7 human mammary carcinoma cells as well as normal human mammary epithelium isolated from reduction mammoplasties. Knockdown of PTEN expression in MCF7 cells utilizing a lenti-viral siRNA increased tumor formation in NOD-SCID mice 4 fold compared to GFP transfected cells. HER2 overexpression by lenti-viral infection in these cells increased their tumorigenicity 6 fold whereas the combination of HER2 overexpression and PTEN knockdown increased tumorigenicity 10 fold compared to GFP transfected controls. In order to determine whether these effects on tumorigenicity resulted from changes in stem cell populations, we utilized both mammosphere formation assay as well as the expression of the stem cell marker ALDH1. Deletion of PTEN and overexpression of HER2 increased the proportion of cells expressing the stem cell marker ALDH1 by 2-4 fold whereas the combination of PTEN deletion and HER2 overexpression placed the stem cell population up to 8 fold. Similar effects were observed when these genes genes were deregulated in normal human mammary epithelial cells. In order to determine whether this increase in stem cell populations produced changes in tumor characteristics we examined the ability of transfected MCF7 cells to invade utilizing the matrigell Boyden Chamber assay. PTEN deletion or HER2 overexpression led to an increase of up to 2-4 fold in the number of cells invading the matrix, with cells with combined PTEN knockdown and HER2 overexpression increasing their invasion up to 10 fold compared to MCF7 GFP cells. Furthermore, cells invading the matrix expressed the stem cell marker ALDH1. These experiments suggest that two genes commonly deregulated in sporadic breast cancer and associated with poor clinical outcome. HER2 and PTEN modulate stem cell function leading to increased invasion and tumorigenicity.
Obtaining Triploid Muscat Grapes by in vitro Culture of Ovules and Embryos After Crossing Between Diploid and Tetraploid Cultivars (1993)

To breed new seedless grape cultivars we crossed 'Muscat of Alexandria' (2x) and its 4x mutant reciprocally and cultured the immature ovules and embryos in vitro. Ovules sampled 50 days after crossing could develop embryos on a liquid medium of half strength of MS supplemented with 2 ppm of IAA, 0.4 ppm of GA3 and 0.1 % of activated charcoal. After 55 days culture, normally developed embryos were obtained from 20 to 30 % of the ovules from 4x×2x and 50 to 70 % of those from 2x×4x. Embryos taken out from the cultured ovules were planted on an agar medium of MS or N&amp;N for 55 to 65 days. Ten to twenty % of embryos from 2x×4x crossing grew to rooted plantlets successfully. They were proved to be triploid after the measurement of chromosome number. Embryos from 4x×x2x, however, could not grow to plantlets because of the failure of rooting.
Developmental Regulation of Mitogen-Activated Protein Kinase-Activated Kinases-2 and -3 (MAPKAPK-2/-3) in Vivo during Corpus Luteum Formation in the Rat (2001)

The current study investigates the activation in vivo and regulation of the expression of components of the p38 mitogen-activated protein kinase (MAPK) pathway during gonadotropin-induced formation and development of the rat corpus luteum, employing a sequential PMSG/human CG (hCG) treatment paradigm. We postulated that the p38 MAPK pathway could serve to promote phosphorylation of key substrates during luteal maturation, since maturing luteal cells, thought to be cAMP-nonresponsive, nevertheless maintain critical phosphoproteins. Both p38 MAPK and its upstream activator MAPK kinase-6 (MKK6) were found to be chronically activated during the luteal maturation phase, with activation detected by 24 h post hCG and maintained through 4 days post hCG. The p38 MAPK downstream protein kinase target termed MAPK-activated protein kinase-3 (MAPKAPK-3) was newly induced at both mRNA and protein levels during luteal formation and maturation, while mRNA and protein expression of the closely related MAPKAPK-2 diminished. Two potential substrates for MAPKAPKs, the small heat shock protein HSP-27 and the cAMP regulatory element binding protein CREB, were monitored in vivo for phosphorylation. HSP-27 phosphorylation was not modulated during luteal maturation. In contrast, we observed sustained luteal-phase CREB phosphorylation in vivo, consistent with upstream MKK6/p38 MAPK activation and MAPKAPK-3 induction. MAPKAPK-3-specific immune complex kinase assays provided direct evidence that MAPKAPK-3 was in an activated state during luteal maturation in vivo. Cellular inhibitor studies indicated that an intact p38 MAPK path was required for CREB phosphorylation in a cellular model of luteinization, as treatment of luteinized granulosa cells with the p38 MAPK inhibitor SB 203580 strongly inhibited CREB phosphorylation. Transient transfection studies provided direct evidence that MAPKAPK-3 was capable of signaling to activate CREB transcriptional activity, as assessed by means of GAL4-CREB fusion protein construct coexpressed with GAL4-luciferase reporter construct. Introduction of wild-type, but not kinase-dead mutant, MAPKAPK-3 cDNA, into a mouse ovarian cell line stimulated GAL4-CREB- dependent transcriptional activity approximately 3-fold. Thus MAPKAPK-3 is indeed uniquely poised to support luteal maturation through the phosphorylation and activation of the nuclear transcription factor CREB.
Via induction of differentiation from human bone marrow derived mesenchymal stem cells to adult cardiomyocytes? (2004)

Objectives: The transplantation of human bone marrow-derived mesenchymal stem cells (hMSC) into the myocardium is a promising new technique for a hemodynamic improvement of heart function. However, it is not yet clear which cells are suited best for the task of restoring structure and function and/or the formation of new vessels within the infarct area. In this study we investigated various growth factors (GF) and GF-combinations concerning their ability to induce the formation of cardiomyocytes from hMSC in-vitro.
Topology Optimization with linearized buckling criteria in 250 lines of\n Matlab (2021)

We present a 250 line Matlab code for topology optimization for linearized\nbuckling criteria. The code is conceived to handle stiffness, volume and\nBuckling Load Factors (BLFs) either as the objective function or as\nconstraints. We use the Kreisselmeier-Steinhauser aggregation function in order\nto reduce multiple objectives (viz. constraints) to a single, differentiable\none. Then, the problem is sequentially approximated by using MMA-like\nexpansions and an OC-like scheme is tailored to update the variables. The\ninspection of the stress stiffness matrix leads to a vectorized implementation\nfor its efficient construction and for the sensitivity analysis of the BLFs.\nThis, coupled with the efficiency improvements already presented by Ferrari and\nSigmund 2020, cuts all the computational bottlenecks associated with setting up\nthe buckling analysis and allows buckling topology optimization problems of an\ninteresting size to be solved on a laptop. The efficiency and flexibility of\nthe code is demonstrated over a few structural design examples and some ideas\nare given for possible extensions.\n
Exposure-Programmable CMOS Pixel With Selective Charge Storage and Code Memory for Computational Imaging (2017)

Computational imaging, as a rapid emerging field, enables unprecedented photographic capability through the encoding of visual information. Currently, as exposure programming is not support by image sensors, computational cameras use off-chip components to accomplish exposure/encoding optical computations. In this paper, we present a complementary metal-oxide-semiconductor (CMOS) pixel structure with exposure encoding capabilities that enable on-chip computational imaging. As a proof-of-concept, a 10 × 10-pixel prototype chip is fabricated in a 0.13-μm 8-metal 1-poly CMOS process with shared pixel output wires and two 3.3-V power supplies. Each computational pixel is 12.1 μm × 12.2 μm with a fill factor of 33.2%. Measurement results confirm that at a frame rate of 60 f/s, the proposed pixel is capable of performing both temporal and spatial exposure encoding. The proposed pixel design paves a promising path to achieve on-chip temporal-spatial exposure encoding directly on the sensor focal plane for computational imaging.
Molecular biology for today’s practicing intensivist (2005)

From the Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA.
Entrainment in stratified environments — an interface-based approach (2016)

In this study, we focus on understanding stratification effects on the entrainment process in gravity currents via a multi-scale approach based on the turbulent/non-turbulent interface (TNTI).We find that a large part of the reduction of the entrainment parameter in the presence of a stable stratification can be explained through a reduction of the surface area of the TNTI.An analysis of the fractal geometry of the TNTI reveals that the decrease of the surface area with increasing stable stratification is predominantly due to a reduced effective fractal dimension.