gebhart/patrepeval huggingface dataset:
ChemInform Abstract: A New Method for the Synthesis of Aromatic Sulfurpentafluorides and Studies of the Stability of the Sulfurpentafluoride Group in Common Synthetic Transformations. (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.
A penetration analysis of the Michigan Terminal System (1980)

The successful penetration testing of a major time-sharing operating system is described. The educational value of such a project is stressed, and principles of methodology and team organization are discussed as well as the technical conclusions from the study.
Scheduling with bus access optimization for distributed embedded systems (2000)

In this paper, we concentrate on aspects related to the synthesis of distributed embedded systems consisting of programmable processors and application-specific hardware components. The approach is based on an abstract graph representation that captures, at process level, both dataflow and the flow of control. Our goal is to derive a worst case delay by which the system completes execution, such that this delay is as small as possible; to generate a logically and temporally deterministic schedule; and to optimize parameters of the communication protocol such that this delay is guaranteed. We have further investigated the impact of particular communication infrastructures and protocols on the overall performance and, specially, how the requirements of such an infrastructure have to be considered for process and communication scheduling. Not only do particularities of the underlying architecture have to be considered during scheduling but also the parameters of the communication protocol should be adapted to fit the particular embedded application. The optimization algorithm, which implies both process scheduling and optimization of the parameters related to the communication protocol, generates an efficient bus access scheme as well as the schedule tables for activation of processes and communications.
Self-representation of Arab Female Influencers on Instagram: (2018)

This paper aims at exploring the new media platform (Instagram) and its role in offering an innovative platform for women to present themselves, and, to break stereotypes. It aims at identifying the ways Arab Female Influencers present themselves to their followers on Instagram visually and verbally. In order to collect the sample of the Arab Influencers, a survey was conducted on 100 female college students. Then a quantitative and qualitative analysis was conducted on the accounts of 115 Arab female influencers that these students followed the most. Influencers were divided according to their careers, and their official accounts and were analyzed according to a 7-category coding scheme. The last post published on their account was described with its caption, hashtag, tag, and visual frame. The paper concluded that college students prefer to follow actresses, singers and fashionistas, travel bloggers and nutritionists. It also concluded that Arab female influencers mainly tend to present themselves promoting their work and publishing personal stories on this new media platform (Instagram).
A Review of Probabilistic, Fuzzy, and Neural Models for Pattern Recognition (1993)

Fuzzy sets were introduced by Zadeh in 1965 to represent and manipulate data and information that possess nonstatistical uncertainty. Computational neural networks were first discussed by McCullough and Pitts in 1943 as a means of imitating the power
The synthesis of βγ-unsaturated esters from conjugated dienes (1965)

S. Brewis and P. R. Hughes, Chem. Commun. (London), 1965, 157 DOI: 10.1039/C19650000157
Preparation of Polycyclic Aromatic Hydrocarbons as Potential Carcinogens<sup>1</sup> (1953)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of Polycyclic Aromatic Hydrocarbons as Potential Carcinogens1George WolfCite this: J. Am. Chem. Soc. 1953, 75, 11, 2673–2678Publication Date (Print):June 1, 1953Publication History Published online1 May 2002Published inissue 1 June 1953https://pubs.acs.org/doi/10.1021/ja01107a036https://doi.org/10.1021/ja01107a036research-articleACS PublicationsRequest reuse permissionsArticle Views186Altmetric-Citations7LEARN 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
Using Stem Cells in Skin Regeneration: Possibilities and Reality (2011)

Tissue-engineered skin has a long history of clinical applications, yet current treatments are not capable of completely regenerating normal, uninjured skin. Nonetheless, the field has experienced a tremendous development in the past 10 years, encountering the summit of tissue engineering (TE) and the arising of stem cell research. Since then, unique features of these cells such as self-renewal capacity, multi-lineage differentiation potential, and wound healing properties have been highlighted. However, a realistic perspective of their outcome in skin regenerative medicine applications is still absent. This review intends to discuss the directions that adult and embryonic stem cells (ESCs) can take, strengthening the skin regeneration field. Distinctively, a critical overview of stem cells' differentiation potential onto skin main lineages, along with a highlight of their participation in wound healing mechanisms, is herein provided. We aim to compile and review significant work to allow a better understanding of the best skin TE approaches, enabling the embodiment of the materialization of a new era in skin regeneration to come, with a conscious overview of the current limitations.
Peptide-MHC Interaction: A Rational Approach to Vaccine Design (1990)

The goal of vaccination is to induce a protective immune response without inducing the disease itself or other undesirable effects. In the past this was achieved by giving inactivated or attenuated pathogens, with notable success in some cases, but problems of safety, efficacy or production in others. A currently pursued alternative is the construction of synthetic peptide vaccines that contain pathogen-derived determinants able to induce an immune response both at the B and the T cell level. Because T cells recognize peptide fragments which are derived from the processing of soluble proteins [1], the technical problems of epitope conformation can be largely avoided in the design of synthetic T cell sites. However the constraints presented by the extensive polymorphism of MHC antigens on one hand [2], and the obligate interaction between the antigenic peptide and the MHC molecule on the other [3], create a problem for the immune system. When an antigenic determinant does not interact favorably with the MHC molecules possessed by a given individual, T cell clones specific for this particular combination of determinant and MHC molecules cannot be activated and therefore not all individuals will respond to any one antigenic determinant. Thus in order to develop a synthetic peptide vaccine applicable to an entire population, individuals with each MHC haplotype would have to be studied to ascertain which peptides they predominantly recognize as T cell determinants.In this review, through the work we have done on malaria sporozoite vaccine development, we should like to propose new strategies for identifying pathogen-derived sequences whose characteristics offer possible solutions to the problem of MHC restriction of the immune response for peptide vaccines.
Stable image acquisition for mobile image processing applications (2015)

Today, mobile devices (smartphones, tablets, etc.) are widespread and of high importance for their users. Their performance as well as versatility increases over time. This leads to the opportunity to use such devices for more specific tasks like image processing in an industrial context. For the analysis of images requirements like image quality (blur, illumination, etc.) as well as a defined relative position of the object to be inspected are crucial. Since mobile devices are handheld and used in constantly changing environments the challenge is to fulfill these requirements. We present an approach to overcome the obstacles and stabilize the image capturing process such that image analysis becomes significantly improved on mobile devices. Therefore, image processing methods are combined with sensor fusion concepts. The approach consists of three main parts. First, pose estimation methods are used to guide a user moving the device to a defined position. Second, the sensors data and the pose information are combined for relative motion estimation. Finally, the image capturing process is automated. It is triggered depending on the alignment of the device and the object as well as the image quality that can be achieved under consideration of motion and environmental effects.
Origami spring–inspired metamaterials and robots: An attempt at fully programmable robotics (2020)

Recent advances in three-dimensional printing technologies provide one way not only to speed up freeform fabrication but also to exert programmable control over mechanical properties. Besides, origami-inspired structures, origami-inspired metamaterials, and even origami-inspired robotics primarily demonstrate the promising potential for innovative inspirations of engineering solutions. The motivation of this work is to explore a fully programmable robotic perspective with a fusion of programmable metamaterials, programmable mechanics, and programmable fabrication. First, we proposed an illustrative roadmap for transforming an origami model into a fully programmable robotic system. Then, we introduced an origami spring model and revealed its shape-shifting geometry and intrinsic metamaterial mechanisms, especially the rarely switchable behavior from transverse compression to longitudinal stretchability, and the curvilinear deployment. Furthermore, we addressed the fabrication challenges of three-dimensional printable origami sheets considering three-dimensional printability, foldability with high elasticity, and good damage tolerance. Finally, we developed a fully soft manipulator in terms of the highly reversible compressibility of origami spring metamaterials. And we also devised a peristaltic crawling robot with undulatory movements induced by inclination deployment effect of origami spring metamaterials. Conceivably, the proposed fully programmable robotic system was demonstrated starting from programmable metamaterials, programmable mechanics, and programmable fabrication to programmable robotic behaviors. The contribution of this work also suggested that robotic morphing could be tunable by hierarchical programming from modeling and fabrication to actions.
DNA sequence from the histidine operon control region: seven histidine codons in a row. (1978)

The DNA sequence of 250 base pairs preceding the first structural gene of the histidine operon of Salmonella typhimurium was determined by the dideoxy chain-termination method. Single-stranded DNA template was provided by an M13-histidine transducing phage constructed for the purpose by in vitro recombination. The termination site for the histidine leader RNA is identified by analogy with the trp operon leader termination sequence, and is 47 nucleotides before the start codon of the first structural gene G. Beginning 150 nucleotides before the end of the presumed leader RNA is a possible short protein-coding region with seven histidine codons in a row. It is proposed that the major mechanism of histodine operon control must involve a ribosome arrested at this run of histidine codons when histidine is limiting.
Biodegradation of Tetrachloroethene by Chitin Fermentation Products in a Continuous Flow Column System (2006)

The ability of chitin fermentation products to promote tetrachloroethene (PCE) reduction was evaluated in a continuous-flow column system to identify how different electron donors affect reductive dechlorination. Natural chitin fermentation products were initially used to support PCE reduction. Acetate (3.5mM) was the dominant fermentation product, followed by propionate (0.1mM) , butyrate (0.1mM) , and hydrogen (100nM) . After chlorinated ethene concentration profiles reached pseudo steady state, the ability of individual fermentation products (acetate, acetate+propionate , propionate, or formate) to support PCE reduction was evaluated. None of the fermentation products tested stimulated dechlorination as well as the suite generated from chitin (kPCE=6.9day−1) ; however, acetate-stimulated PCE dechlorination the best (kPCE=5.3day−1) , followed by formate (kPCE=2.4day−1) , acetate+propionate (kPCE=1.8day−1) , and propionate (kPCE=1.2day−1) . Similar trends were observed for the PCE daughter products trichloroethene and dichloroethene. Free energies of individual fatty acid reactions were calculated and shown to be useful predictors of dechlorination performance, except for the case of acetate+propionate. Hence, acetate is the dominant fatty acid controlling dechlorination in the chitin-enhanced system, propionate appears to have an inhibitory effect when present with acetate alone, and other unidentified nutrients produced during chitin fermentation likely contribute to dechlorination activity as well.
The Application of Materials Balancing to the Characterization of Sequential Secondary Metabolite Formation in Streptomyces cattleya NRRL 8057 (1983)

The high substrate yield factor (0.73 g biomass g glucose-1) and low R.Q. (respiratory quotient, i.e. mol CO2 evolved per mol O2 consumed) value (0.8) measured during growth-phase batch cultures of Streptomyces cattleya could be rationalized in terms of the fermentation mass balance when the oxidized elemental composition of biomass was considered. R.Q. was also indicative of the sequence of secondary metabolite formation, the value rising in steps as each new product was formed. The period of maximum respiratory activity and phosphate uptake preceded maximum growth and glucose uptake. At the end of the lytic phase, a cyclopentenedione cobalt chelator was produced. The termination of lysis coincided with melanin production. Sequential cephamycin C and thienamycin production then took place. Specific hyphal protein content (per unit RNA) peaked before the production of each new metabolite. Melanin, cephamycin C and thienamycin production were initiated when glucose, ammonia and phosphate, respectively, became growth-limiting.
Immunotherapy for the Treatment of Glioblastoma (2012)

Glioblastoma, the most aggressive primary brain tumor, thrives in a microenvironment of relative immunosuppression within the relatively immune-privileged central nervous system. Despite treatments with surgery, radiation therapy, and chemotherapy, prognosis remains poor. The recent success of immunotherapy in the treatment of other cancers has renewed interest in vaccine therapy for the treatment of gliomas. In this article, we outline various immunotherapeutic strategies, review recent clinical trials data, and discuss the future of vaccine therapy for glioblastoma.
Long-Term Oxidation Behavior of Fe-Cr Ferritic Alloy ZMG232L for SOFC Interconnects (2009)

Fe-Cr ferritic alloys are applied for interconnects of solid oxide fuel cells (SOFCs) operated at around medium temperatures. The long-term oxidation behavior of Fe-22%Cr ferritic alloy, ZMG232L, was investigated. The oxidation rate of thin sheet was much higher than that of thick one. The effect of Cr content on oxidation resistance of ZMG232L was also investigated. The oxidation rate of low Cr alloy was higher than that of high Cr one. Therefore it was found that such accelerated oxidation occurred because Cr content decreased under oxide layer of edge part of thin sheet and Cr oxide became unstable and Fe was mainly oxidized.
Cooking activities recognition in egocentric videos using hand shape feature with openpose (2018)

Recently people can easily obtain wearable cameras and it is easy to record egocentric videos by using them. Therefore, daily activity recognition from egocentric videos is one of the hot topics in computer vision. In this research, we propose a new cooking activity recognition method for egocentric videos. Our proposed method has following characteristic points; 1) hand regions are detected with bounding box by using SSD, 2) hand keypoints(articular points) are estimated by using OpenPose, and hand features are extracted from the keypoint positions and 3) fully-connected multi layer neural network is utilized to recognize cooking activities with the extracted features. From the experimental results with our benchmark including eight cooking activities, we have confirmed that our proposed method allows us to recognize cooking activities with 58.9% on average.
Modeling and simulation of enhancement mode p-GaN Gate AlGaN/GaN HEMT for RF circuit switch applications (2017)

An enhancement mode p-GaN gate AlGaN/GaN HEMT is proposed and a physics based virtual source charge model with Landauer approach for electron transport has been developed using Verilog-A and simulated using Cadence Spectre, in order to predict device characteristics such as threshold voltage, drain current and gate capacitance. The drain current model incorporates important physical effects such as velocity saturation, short channel effects like DIBL (drain induced barrier lowering), channel length modulation (CLM), and mobility degradation due to self-heating. The predicted Id–Vds, Id-Vgs, and C-V characteristics show an excellent agreement with the experimental data for both drain current and capacitance which validate the model. The developed model was then utilized to design and simulate a single-pole single-throw (SPST) RF switch.
Mitochondrial Signaling in Health and Disease (2012)

Mitochondria have traditionally been associated with metabolic functions; however recent research has uncovered a central role for these organelles in cell signaling, cell survival, and cell death. Mitochondrial dysfunction is a factor in a myriad of pathophysiological conditions, including age-related neurodegenerative disorders, cancer, metabolic
Extending the Picard-Fuchs system of local mirror symmetry (2005)

We propose an extended set of differential operators for local mirror symmetry. If X is Calabi-Yau such that dimH4(X,Z)=0, then we show that our operators fully describe mirror symmetry. In the process, a conjecture for intersection theory for such X is uncovered. We also find operators on several examples of type X=KS through similar techniques. In addition, open string Picard-Fuchs systems are considered.
Resolution of low elevation radar targets and images using a shifted array correlation technique (2003)

A description is given of image resolving, shifted array correlation (ISAC), an angle-of-arrival technique that computes image signal reflection coefficients that maximize the correlation as the elevation sector is scanned by steering vectors. Accurate low-elevation-angle resolution is obtained by shifting the array to increase the effective aperture. Computer simulation results are presented to show some of the performance characteristics of the ISAC technique as applied to the low-elevation target problem. Numerical analysis predicts the experimental problem of resolving low-elevation-angle radar targets. Target resolution near the horizon, on the order of 1/8 of an array beamwidth, requires array signal-to-noise ratios in excess of 30 dB.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
A new inverted F antenna with a ring dielectric resonator (1999)

A new antenna combining the use of a ring dielectric resonator (DR) and an inverted F antenna (IFA) is proposed and investigated experimentally. In this application, the DR not only fills the role of a dielectric coating, but also serves the function of a radiator. The measurements of input impedance, return loss, and radiation pattern for both the IFA with the DR (IFA-DR) and the wire IFA (WIFA) are conducted at the S band. The measured data demonstrate that the IFA-DR operates in multiple resonance modes unlike a WIFA. Compared with the WIFA, the one proposed here incorporating a ring DR and an IFA is more attractive in having a smaller size and a larger impedance bandwidth.
Design Requirements for an AJAX and Web-Service Based Generic Internet GIS Client (2008)

The development of spatial data infrastructures (SDIs) is broadening out from the current systems which contain largely only Web Map Service (WMS) interfaces offering visualisations of data to more advanced systems offering access to the actual data via Web Feature Service (WFS) or Web Coverage Service (WCS) interfaces and even the beginnings of web-service based access to
SQL Server 2012 T-SQL Recipes: A Problem-Solution Approach (2012)

<em>SQL Server 2012 T-SQL Recipes</em> is an example-based guide to the Transact-SQL language that is at the core of SQL Server 2012. It provides ready-to-implement solutions to common programming and database administration tasks. Learn to create databases, insert and update data, generate reports, secure your data, and more. Tasks and their solutions are broken down into a problem/solution format that is quick and easy to read so that you can get the job done fast when the pressure is on. <br> <br> <br> <br> Solutions in this book are divided into chapters by problem domain. Each chapter is a collection of solutions around a single facet of the language such as writing queries, developing triggers, and applying aggregate functions. Each solution is presented code-first, giving you a working code example to copy from and implement immediately in your own environment. Following each example is an in-depth description of how and why the given solution works. Tradeoffs and alternative approaches are also discussed. <br> <br> <br> <br> <ul> <li>Focused on solutions: Look up what you need to do. Learn how to do it. Do it. </li> <li>Current: Newly updated for SQL Server 2012 </li> <li>Comprehensive: Covers all common T-SQL problem domains </li> </ul>