gebhart/patrepeval huggingface dataset:
mm-Wave Radar Based Gesture Recognition (2018)

Gesture recognition is gaining attention as an attractive feature for the development of ubiquitous, context-aware, IoT applications. Use of radars as a primary or secondary system is tempting, as they can operate in darkness, high light intensity environments, and longer distances than many competitor systems. Starting from this observation, we present a generic, low-cost, mm-wave radar-based gesture recognition system. Among potential benefits of mm-wave radars are a high spatial resolution due to small wavelength, the availability of multiple antennas in a small area and the low interference due to the natural attenuation of mm-wave radiation. We experimentally evaluate our COTS solution considering eight different gestures and using two low-complexity classification algorithms: the unsupervised Self Organized Map (SOM) and the supervised Learning Vector Quantization (LVQ). To test robustness, we consider gestures performed by a human hand and a human body, at short and long distance. From our preliminary evaluations, we observe that LVQ and SOM correctly detect 75% and 60% of all gestures, respectively, from the raw, unprocessed data. The detection rate is significantly higher (>90%) for selected gesture groups. We argue that performance suffers due to inaccurate AoA estimation. Accordingly, we evaluate our system employing a two-radar setup that increases the estimation accuracy by 8-9%.
Potent Dual Inhibitors of TORC1 and TORC2 Complexes (KU-0063794 and KU-0068650) Demonstrate In Vitro and Ex Vivo Anti-Keloid Scar Activity (2013)

Mammalian target of rapamycin (mTOR) is essential in controlling several cellular functions. This pathway is dysregulated in keloid disease (KD). KD is a common fibroproliferative dermal lesion with an ill-defined treatment strategy. KD demonstrates excessive matrix deposition, angiogenesis, and inflammatory cell infiltration. In KD, both total and phosphorylated forms of mTOR and p70(S6K)(Thr421/Ser424) are upregulated. Therefore, the aim of this study was to investigate adenosine triphosphate-competitive inhibitors of mTOR kinase previously unreported in keloid and their comparative efficacy with Rapamycin. Here, we present two mTOR kinase inhibitors, KU-0063794 and KU-0068650, that target both mTORC1 and mTORC2 signaling. Treatment with either KU-0063794 or KU-0068650 resulted in complete suppression of Akt, mTORC1, and mTORC2, and inhibition of keloid cell spreading, proliferation, migration, and invasive properties at a very low concentration (2.5 μmol l(-1)). Both KU-0063794 and KU-0068650 significantly (P<0.05) inhibited cell cycle regulation and HIF1-α expression compared with that achieved with Rapamycin alone. In addition, both compounds induced shrinkage and growth arrest in KD, associated with the inhibition of angiogenesis, induction of apoptosis, and reduction in keloid phenotype-associated markers. In contrast, Rapamycin induced minimal antitumor activity. In conclusion, potent dual mTORC1 and mTORC2 inhibitors display therapeutic potential for the treatment of KD.
RF MEMS tunable band reject filter using metamaterials (2014)

Tuneable band reject filter is a very critical component of electronic warfare. The design is of such a filter using MEMS technology presented on CPW transmission line on silicon substrate using Complementary Split Ring Resonators (CSRRs) and RF MEMS variable capacitor, enabling compatibility with planar IC technology. The CSRRs are etched on both the signal line and ground planes of the CPW. Tunability of the band reject filter is achieved by putting the MEMS bridge in either up or down state. Through electrostatic actuation of the RF-MEMS switched capacitor, the electrical characteristics of the filter is modified, so that its resonance frequency can be tuned. The rejection of stop bands are around −20.19dB for down state around the centre frequency 35.32GHz and −18.29dB for up state around the centre frequency 38.80GHz.
Sparsity constrained deconvolution approaches for acoustic source mapping (2008)

Using microphone arrays for estimating source locations and strengths has become common practice in aeroacoustic applications. The classical delay-and-sum approach suffers from low resolution and high sidelobes and the resulting beamforming maps are difficult to interpret. The deconvolution approach for the mapping of acoustic sources (DAMAS) deconvolution algorithm recovers the actual source levels from the contaminated delay-and-sum results by defining an inverse problem that can be represented as a linear system of equations. In this paper, the deconvolution problem is carried onto the sparse signal representation area and a sparsity constrained deconvolution approach (SC-DAMAS) is presented for solving the DAMAS inverse problem. A sparsity preserving covariance matrix fitting approach (CMF) is also presented to overcome the drawbacks of the DAMAS inverse problem. The proposed algorithms are convex optimization problems. Our simulations show that CMF and SC-DAMAS outperform DAMAS and as the noise in the measurements increases, CMF works better than both DAMAS and SC-DAMAS. It is observed that the proposed algorithms converge faster than DAMAS. A modification to SC-DAMAS is also provided which makes it significantly faster than DAMAS and CMF. For the correlated source case, the CMF-C algorithm is proposed and compared with DAMAS-C. Improvements in performance are obtained similar to the uncorrelated case.
C‐reactive protein impairs human CD14<sup>+</sup> monocyte‐derived dendritic cell differentiation, maturation and function (2006)

C-reactive protein (CRP) is an acute phase reactant protein considered to be the prototypic marker for inflammation and its associated diseases. However, little is known about how CRP affects the immune system. In this study, we investigated the effect of CRP on dendritic cell (DC) differentiation, activation and biological functions. CD14+ monocytes were purified from PBMC and differentiated into DC in vitro. CRP (10 microg/mL) substantially down-regulated expression of DC-SIGN (CD209) and the costimulatory molecules CD40 and CD86 during DC differentiation. This inhibitory effect was more pronounced when CRP was added at the early stage (0-2 days) of DC differentiation. The inhibitory effect of CRP could be specifically blocked by an anti-CD32 Ab. In addition, CRP dramatically down-regulated expression of the antigen-uptake molecules CD205 and CD206, resulting in reduced DC endocytosis. Furthermore, CRP down-regulated expression of the costimulatory molecules CD40, CD80 and CD86 as well as the DC maturation marker CD83 after lipopolysaccharide-induced DC maturation. CRP-treated DC also showed an inhibitory effect on allogeneic T cell proliferation in a mixed leukocyte reaction. CRP treatment of activated DC preferentially decreased production of the proinflammatory and inflammatory cytokines IL-6, IL-8, IL-12, TNF-alpha, MIP-1alpha, MIP-1beta and MCP-1. This work reveals a new role for CRP in modulating the immune system by inhibiting DC differentiation, maturation and functions mainly through FcgammaRIIa/CD32.
Detecting insider activity using enhanced directory virtualization (2010)

Insider threats often target authentication and access control systems, which are frequently based on directory services. Detecting these threats is challenging, because malicious users with the technical ability to modify these structures often have sufficient knowledge and expertise to conceal unauthorized activity. The use of directory virtualization to monitor various systems across an enterprise can be a valuable tool for detecting insider activity. The addition of a policy engine to directory virtualization services enhances monitoring capabilities by allowing greater flexibility in analyzing changes for malicious intent. The resulting architecture is a system-based approach, where the relationships and dependencies between data sources and directory services are used to detect an insider threat, rather than simply relying on point solutions. This paper presents such an architecture in detail, including a description of implementation results.
Chain Transfer in the Polymerization of Styrene: The Reaction of Solvents with Free Radicals<sup>1</sup> (1943)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChain Transfer in the Polymerization of Styrene: The Reaction of Solvents with Free Radicals1Frank R. MayoCite this: J. Am. Chem. Soc. 1943, 65, 12, 2324–2329Publication Date (Print):December 1, 1943Publication History Published online1 May 2002Published inissue 1 December 1943https://pubs.acs.org/doi/10.1021/ja01252a021https://doi.org/10.1021/ja01252a021research-articleACS PublicationsRequest reuse permissionsArticle Views3485Altmetric-Citations421LEARN 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
Minimizing Symbol Error Rate for Cognitive Relaying with Opportunistic Access (2012)

In this paper, we present an optimal resource allocation scheme (ORA) for an all-participate (AP) cognitive relay network that minimizes the symbol error rate (SER). The SER is derived and different constraints are considered on the system. We consider the cases of both individual and global powe
Cooperative Control Algorithm of the Fine/Coarse Tracking System for 40Gbps Free-Space Optical Communication (2012)

The cooperative control algorithm of the fine/coarse tracking system has been developed to achieve 40Gbps free-space optical communication. The tracking control system consists of the agile two-axis gimbals as the coarse tracking system and the high performance fine-pointing-mechanism(fpm) as the fine tracking system with the optical coarse acquisition sensor and the optical fine tracking sensor. It applies for the aerial platform and the onground platform, and free-space optical communication has been carried out between them. In the conventional tracking control systems, the two-axis gimbals is combined with the narrow range actuator for the fine pointing control, and it has the role of the coarse pointing control based on the GPS position and the attitude of the platform. To improve the control performance of “this two-stage type”, especially during the motion of the
Neoplastic modulation of extracellular matrix: Stimulation of chondroitin sulfate proteoglycan and hyaluronic acid synthesis in co‐cultures of human colon carcinoma and smooth muscle cells (1989)

Previous studies have shown that human colon carcinomas contain elevated amounts of chondroitin sulfate proteoglycan (CS-PG) and hyaluronic acid, and that the major site of synthesis of these products is the host mesenchyme surrounding the tumor. These findings have led to the proposal that the abnormal formation of the tumor stroma is modulated by the neoplastic cells. The experiments of this paper were designed to explore further this complex phenomenon in an in vitro system using co-cultures of phenotypically stable human colon smooth muscle (SMC) and carcinoma cells (WiDr). The results showed a 3-5-fold stimulation of CS-PG and hyaluronic acid biosynthesis in the co-cultures as compared to the values predicted from the individual cell type cultured separately. The increase in CS-PG was not due to changes in specific activity of the precursor pool, but was rather due to a net increase in synthesis, inasmuch as it was associated with neither a stimulation of cell proliferation nor with an inhibition of intracellular breakdown. These biochemical changes were corroborated by ultrastructural studies which showed a marked deposition of proteoglycan granules in the co-cultures. Several lines of evidence indicated that the SMC were responsible for the overproduction of CS-PG: i) SMC synthesized primarily CS-PG when cultured alone, in contrast to the WiDr, which synthesized exclusively heparan sulfate proteoglycan; ii) only the SMC in co-culture stained with an antibody raised against the amino terminal peptide of a CS-PG (PG-40), structurally and immunologically related to that synthesized by the SMC; iii) the stimulation of CS-PG in SMC could be reproduced, though to a lesser extent, using medium conditioned by WiDr, whereas medium conditioned by SMC had no effects on WiDr. In conclusion this study has reproduced in vitro a tumor-associated matrix with a proteoglycan composition similar to that observed in vivo and provides further support to the concept that production of a proteoglycan-rich extracellular environment is regulated by specific tumor-host cell interactions.
Marital Style and Its Effects on Sexual Desire and Functioning (1999)

Abstract This paper is an attempt to integrate findings about marital styles and sexual functioning, with a special focus on desire issues. The couple's marital style -complementary, conflict minimizing, best friend, emotionally expressive-has important implications for degree of intimacy and the importance of sex in the relationship. When sexuality functions well in a marriage, it's a positive, integral component, contributing 15-20 percent. However, when sexuality is dysfunctional or non-existent it plays an inordinately powerful role, 50-75 percent, robbing the marriage of intimacy and vitality. Especially for best friend and emotionally expressive couples, sexual problems destroy marital viability. There is a need for empirical and clinical exploration of the reciprocal effects of marital style with sexual desire and functioning.
Rigidization, preorientation and electronic decoupling—the ‘magic triangle’ for the design of highly efficient fluorescent sensors and switches (2002)

One of the key interests in the recent development of fluorescent molecular sensors and switches is the realization of systems that show strong signal changes as a response to the chemical trigger. Aiming at rational probe design, this article compiles and compares different promising strategies to extract those supramolecular and photophysical features that allow the construction of molecular devices suitable for efficient signaling. The examples comprise fluorescence 'OFF'-'ON' as well as 'ON'-'OFF' operative systems and the mechanisms, properties, and limitations of the different design concepts are discussed.
Ionophore-Based Optical Sensors (2014)

This review provides an overview of the key aspects of designing ionophore-based optical sensors (IBOS). Exact response functions are developed and compared with a simplified, generalized equation. We also provide a brief introduction into less established but promising working principles, namely dynamic response and exhaustive exchange. Absorbance and fluorescence are the main optical readout strategies used in the evaluation of a sensor response, but they usually require a robust referencing technique for real-world applications. Established referencing schemes using IBOS as well as those from other optical sensors are also discussed. Finally, the power of recently developed photoresponsive ion extraction/release systems is outlined and discussed in view of dynamically switchable IBOS or regenerative exhaustive exchange IBOS.
Self‐Adjuvanting Multicomponent Cancer Vaccine Candidates Combining Per‐Glycosylated MUC1 Glycopeptides and the Toll‐like Receptor 2 Agonist Pam<sub>3</sub>CysSer (2011)

More sugar with your “T”: The title candidates comprising per-glycosylated MUC1 peptides, a T-cell helper peptide, and an immunoadjuvant were assembled in high yields using iterative pentafluorophenyl ester-mediated fragment condensations. Following immunological evaluation, a tricomponent vaccine bearing clustered glycosylation with the T-antigen was identified (see structure) which elicited high IgG antibody titers in murine models without an external adjuvant. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Dynamic Dispersion Compensation in a 10-Gbit/s Optical Systems Using a Novel Nonlinearly Chirped Fiber Bragg Grating (2005)

Summary form only given. The accumulation of fiber-induced dispersion in high-speed singlechannel or wavelength-diviijion multiplexing (WDM) systems can be compensated by either dispersion-compensating fiber (DCF)' or a linearly chirped fiber Bragg grating (FBG).' However, the accumulated dispersion for a given channel may significantlyvary in time for: (i) dynamically reconfigurable optical networks in which a given channel may originate locally or far away, and (ii) transmission systems having changing operating conditions. If dispersion changes, then dispersion compensation techniques must be flexible in order to track the accumulated dispersion as well as dynamically tune the compensator for new channel conditions.
A tool for graphical network modeling and analysis (1992)

GMA, a generic graphical modeling and analysis package that satisfies both commercial users and performance evaluation researchers is described. Using a graphical interface, both novices and experts can analyze the performance of diverse networks simply by loading a configuration file and traffic data. GMA accommodates a variety of networks and modeling techniques. Its structure and use are described, and a simple four-node network is analyzed as an example.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
On the design and development of a gateway between MAP/MMS and PROFIBUS/FMS (2002)

The paper studies the performances that a gateway between the standard architectures MAP and PROFIBUS, defined for manufacturing environments, should offer and analyses the main aspects to be followed on its design. In particular, the cell level network SINEC H1 and the fieldbus SINEC L2 from Siemens manufacturer have been selected as a possible platform to implement a gateway between such architectures. In order to establish the parameters to be used on the performance study a previous development of a gateway between proprietary architectures which follow the layer structure of the OSI Reference Model is presented.
A microfabricated electrostatic haptic display for persons with visual impairments (1998)

An electrostatic haptic display with three 7 x 7 electrode arrays of three different sizes was fabricated on a 4-in wafer using lithographic microfabrication techniques. The display utilizes electrostatic stimulation to generate a tactile sensation of texture on a scanning finger. The tactile sensation appeared to be a result of increased friction and vibration due to the electrostatic forces between the finger skin and the electrodes. Various spatial tactile patterns (lines, circles, squares, and triangles, etc.) can be presented on the display. Experiments of threshold, line separation, and pattern recognition were performed on subjects with visual impairments to study the spatial resolution and information transmission on arrays of variant electrode size and spacing. Two columns with two-column spacing can be resolved with 80% accuracy on the small array, for a spatial resolution of 5.8 mm in terms of edge-to-edge electrode distance. The overall percentages of correct recognition for the patterns were 68.3, 72.1, and 71.3% on the small, medium, and large arrays, respectively. While subject is an important factor for both threshold and pattern recognition, electrode size was statistically significant for threshold only. Frequency and duty cycle of the stimulation waveform did not show statistical significance.
Handbook of Mobile Broadcasting (2008)

Operators are introducing mobile television and digital video content services globally. The Handbook of Mobile Broadcasting addresses all aspects of these services, providing a comprehensive reference on DVB-H, DMB, ISDB-T, and MediaFLO. Featuring contributions from experts in the field, the text presents technical standards and distribution protocols, offering detailed coverage of video coding, including design methodology and error resilience techniques; state-of-the-art technologies such as signaling, optimization, implementation, and simulation; and applications of mobile broadcasting, including emerging areas and new interactive services.
Analytical optimisation of dispersion-managedsolitonpropagation in long-haul WDM systemsand experimental verification (1999)

and experimental verification Analytical optimisation of nonlinear pulse propagation is demonstrated for long-haul WDM dispersion-managed systems. Experimental loop transmission over 8 000 km shows good agreement with predicted pulsewidth evolution in several channels and confirms optimal system operation.
Angels in the Cloud: A Peer-Assisted Bulk-Synchronous Content Distribution Service (2011)

Leveraging client upload capacity through peer assisted content distribution was shown to decrease the load on content providers, while also improving average distribution times. These benefits, however, are limited by the disparity between client upload and download speeds, especially in scenarios requiring a minimum distribution time (MDT) of a fresh piece of content to a set of clients. Achieving MDT is crucial for bulk-synchronous applications, when every client in a set must wait for all other clients in the set to finish their downloads before being able to make use of the downloaded content. In this paper, we propose the use of dedicated servers, which we call angels to accelerate peer-assisted content distribution in general, and to minimize MDT in particular. An angel is not itself the content origin, nor is it interested in fully downloading the content, its only purpose is to enable a peer assisted content distribution scheme to approach the theoretical lower-bound for MDT. To overcome scalability issues inherent in an optimal MDT construction, we propose and evaluate a content exchange strategy involving angels, which we call Group Tree. In addition to simulation results that demonstrate the near optimal performance of our proposed approach, we present the architecture and implementation of CLOUDANGELS -- a service that allows the elastic, on-the-fly deployment of angels (in the cloud) to assist a content provider (off the cloud) in realizing its MDT objective.