gebhart/patrepeval huggingface dataset:
Average Level Crossing Rate of Dual Selection Diversity in Correlated Rician Fading with Rayleigh Cochannel Interference (2010)

We present an infinite-series representation for the average level crossing rate (LCR) of dual selection combining (SC) receivers, operating over correlated Rician fading channels, in the presence of Rayleigh cochannel interference (CCI). Numerical results are presented to illustrate the proposed mathematical analysis and to point out the effect of the branch correlation and fading severity on the average LCR.
Design of the I-BoomCopter UAV for Remote Sensor Mounting (2017)

This paper presents the design of the Interacting-BoomCopter (I-BoomCopter) unmanned aerial vehicle (UAV) for mounting a remote sensor package on a vertical surface. Critical to the design is the novel, custom, light-weight passive end-effector. The end-effector has a forward-facing sonar sensor and in-line force sensor to enable autonomous sensor mounting tasks. The I-BoomCopter’s front boom is equipped with a horizontally-mounted propeller which can provide forward and reverse thrust with zero roll and pitch angles. The design and modeling of the updated I-BoomCopter platform is presented along with prototype flight test results. A teleoperated wireless camera sensor mounting task examines the updated platform’s suitability for mounting remote sensor packages.
Multilayer Capsules of Bovine Serum Albumin and Tannic Acid for Controlled Release by Enzymatic Degradation (2015)

With the purpose to replace expensive and significantly cytotoxic positively charged polypeptides in biodegradable capsules formed via Layer-by-Layer (LbL) assembly, multilayers of bovine serum albumin (BSA) and tannic acid (TA) are obtained and employed for encapsulation and release of model drugs with different solubility in water: hydrophilic-tetramethylrhodamine-isothiocyanate-labeled BSA (TRITC-BSA) and hydrophobic 3,4,9,10-tetra-(hectoxy-carbonyl)-perylene (THCP). Hydrogen bonding is proposed to be predominant within thus formed BSA/TA films. The TRITC-BSA-loaded capsules comprising 6 bilayers of the protein and polyphenol are benchmarked against the shells composed of dextran sulfate (DS) and poly-l-arginine (PARG) on degradability by two proteolytic enzymes with different cleavage site specificity (i.e., α-chymotrypsin and trypsin) and toxicity for murine RAW264.7 macrophage cells. Capsules of both types possess low cytotoxicity taken at concentrations equal or below 50 capsules per cell, and evident susceptibility to α-chymotrypsin resulted in release of TRITC-BSA. While the BSA/TA-based capsules clearly display resistance to treatment with trypsin, the assemblies of DS/PARG extensively degrade. Successful encapsulation of THCP in the TRITC-BSA/TA/BSA multilayer is confirmed, and the release of the model drug is observed in response to treatment with α-chymotrypsin. The thickness, surface morphology, and enzyme-catalyzed degradation process of the BSA/TA-based films are investigated on a planar multilayer comprising 40 bilayers of the protein and polyphenol deposited on a silicon wafer. The developed BSA/TA-based capsules with a protease-specific degradation mechanism are proposed to find applications in personal care, pharmacology, and the development of drug delivery systems including those intravenous injectable and having site-specific release capability.
Decyanation of tertiary nitriles by alkyllithium reagents observed during the synthesis of imidazoles pendant to a quaternary carbon center (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDecyanation of tertiary nitriles by alkyllithium reagents observed during the synthesis of imidazoles pendant to a quaternary carbon centerGeorge B. Gregory, Alexander L. Johnson, and William C. RipkaCite this: J. Org. Chem. 1990, 55, 5, 1479–1483Publication Date (Print):March 1, 1990Publication History Published online1 May 2002Published inissue 1 March 1990https://pubs.acs.org/doi/10.1021/jo00292a019https://doi.org/10.1021/jo00292a019research-articleACS PublicationsRequest reuse permissionsArticle Views540Altmetric-Citations19LEARN 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
Bupivacaine Preferentially Blocks Ventral Root Axons in Rats (1997)

In contrast to clinical expectations, low concentrations of bupivacaine preferentially block motor (VR) axons in the rat.
High efficiency guiding of terawatt subpicosecond laser pulses in a capillary discharge plasma channel (1999)

Transmission efficiencies in excess of 75% were obtained in the optical guiding of subpicosecond, terawatt laser pulses in a 2-cm-long capillary discharge plasma channel at the Naval Research Laboratory. The guided laser beam size at the exit of the channel was measured using far field imaging and Thomson scattering techniques. The guided laser intensity was >1 x 10(17) W/cm(2) at a guided beam diameter of 35 microm for a propagation length of 22 Rayleigh ranges. There is evidence that the plasma channel extends beyond the ends of the capillary and affects the far field beam structure of the transmitted laser pulse.
Symmetric phase-only matched filtering of Fourier-Mellin transforms for image registration and recognition (1994)

Presents a new method to match a 2D image to a translated, rotated and scaled reference image. The approach consists of two steps: the calculation of a Fourier-Mellin invariant (FMI) descriptor for each image to be matched, and the matching of the FMI descriptors. The FMI descriptor is translation invariant, and represents rotation and scaling as translations in parameter space. The matching of the FMI descriptors is achieved using symmetric phase-only matched filtering (SPOMF). The performance of the FMI-SPOMF algorithm is the same or similar to that of phase-only matched filtering when dealing with image translations. The significant advantage of the new technique is its capability to match rotated and scaled images accurately and efficiently. The innovation is the application of SPOMF to the FMI descriptors, which guarantees high discriminating power and excellent robustness in the presence of noise. This paper describes the principle of the new method and its discrete implementation for either image detection problems or image registration problems. Practical results are presented for various applications in medical imaging, remote sensing, fingerprint recognition and multiobject identification.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
TES anthradithiophene solution-processed OTFTs with 1 cm/sup 2//V-s mobility (2005)

We have fabricated solution processed organic thin film transistors (OTFTs) based on triethylsilylethynyl anthradithiophene (TES anthradithiophene) with 1 cm/sup 2//V-s mobility. The devices also have current on/off ratio > 107 and subthreshold slope near 1 V/decade. To our knowledge, these are the highest mobility solution-processed OTFTs reported to date and the first with performance comparable to thermally evaporated pentacene devices.
Oxide-trap-induced instability of GIDL of thermally nitrided-oxide N-MOSFET's under stress (1992)

Some holes created from band-to-band (B-B) tunneling in the deep-depletion region of the drain can be injected into the gate oxide and reduce the vertical field there. As a result, gate-induced drain leakage (GIDL) current decreases. This kind of hot-hole injection depends on the voltage difference between the drain and gate, due to nitridation-induced lowering of the barrier height for hole injection at the SiO/sub 2/-Si interface. The subsequent hot-electron injection can neutralize these trapped holes, and make the GIDL current recover, and even increase beyond its original value. Since the trapped charges also affect the lateral field, the observed change in the ratio of substrate to source currents further confirms the proposed mechanism for the GIDL degradation and recovery behavior.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The Hector distributed run-time environment (1998)

Harnessing the computational capabilities of a network of workstations promises to off-load work from overloaded supercomputers onto largely idle resources overnight. Several capabilities are needed to do this, including support for an architecture-independent parallel programming environment, task migration, automatic resource allocation, and fault tolerance. The Hector distributed run-time environment is designed to present these capabilities transparently to programmers. MPI programs can be run under this environment on homogeneous clusters with no modifications to their source code needed. The design of Hector, its internal structure, and several benchmarks and tests are presented.
Physical and Chemical Absorptions of Carbon Dioxide in Room-Temperature Ionic Liquids (2008)

Gaseous solubilities of carbon dioxide (CO2) in 18 room-temperature ionic liquids (RTILs) have been measured at an isothermal condition (about 298 K) using a gravimetric microbalance. The observed pressure-temperature-composition (PTx) data have been analyzed by use of an equation-of-state (EOS) model, which has been successfully applied for our previous works. Henry's law constants have been obtained from the observed (PTx) data directly and/or from the EOS correlation. Ten RTILs among the present ionic liquids results in the physical absorption, and eight RTILs show the chemical absorption. The classification of whether the absorption is the physical or chemical type is based on the excess Gibbs and enthalpy functions as well as the magnitude of the Henry's constant. In the chemical absorption cases, the ideal association model has been applied in order to interpret those excess thermodynamic functions. Then, two types of the chemical associations (AB and AB2, where A is CO2 and B is RTIL) have been observed with the heat of complex formations of about -11 (for AB) and from -27 to -37 (for AB2) kJ x mol(-1), respectively.
Scalable MCMC for Mixed Membership Stochastic Blockmodels (2015)

We propose a stochastic gradient Markov chain Monte Carlo (SG-MCMC) algorithm for scalable inference in mixed-membership stochastic blockmodels (MMSB). Our algorithm is based on the stochastic gradient Riemannian Langevin sampler and achieves both faster speed and higher accuracy at every iteration than the current state-of-the-art algorithm based on stochastic variational inference. In addition we develop an approximation that can handle models that entertain a very large number of communities. The experimental results show that SG-MCMC strictly dominates competing algorithms in all cases.
Integrated capture, transport, and magneto-mechanical resonant sensing of superparamagnetic microbeads using magnetic domain walls (2012)

An integrated platform for the capture, transport, and detection of individual superparamagnetic microbeads is described for lab-on-a-chip biomedical applications. Magnetic domain walls in magnetic tracks have previously been shown to be capable of capturing and transporting individual beads through a fluid at high speeds. Here it is shown that the strong magnetostatic interaction between a bead and a domain wall leads to a distinct magneto-mechanical resonance that reflects the susceptibility and hydrodynamic size of the trapped bead. Numerical and analytical modeling is used to quantitatively explain this resonance, and the magneto-mechanical resonant response under sinusoidal drive is experimentally characterized both optically and electrically. The observed bead resonance presents a new mechanism for microbead sensing and metrology. The dual functionality of domain walls as both bead carriers and sensors is a promising platform for the development of lab-on-a-bead technologies.
A Mouse Model of Clonal CD8+ T Lymphocyte-Mediated Alopecia Areata Progressing to Alopecia Universalis (2011)

Alopecia areata is among the most prevalent autoimmune diseases, yet compared with other autoimmune conditions, it is not well studied. This in part results from limitations in the C3H/HeJ mouse and DEBR rat model systems most commonly used to study the disease, which display a low frequency and late onset. We describe a novel high-incidence model for spontaneous alopecia areata. The 1MOG244 T cell expresses dual TCRA chains, one of which, when combined with the single TCRB present, promotes the development of CD8(+) T cells with specificity for hair follicles. Retroviral transgenic mice expressing this TCR develop spontaneous alopecia areata at nearly 100% incidence. Disease initially follows a reticular pattern, with regionally cyclic episodes of hair loss and regrowth, and ultimately progresses to alopecia universalis. Alopecia development is associated with CD8(+) T cell activation, migration into the intrafollicular region, and hair follicle destruction. The disease may be adoptively transferred with T lymphocytes and is class I and not class II MHC-dependent. Pathologic T cells primarily express IFNG and IL-17 early in disease, with dramatic increases in cytokine production and recruitment of IL-4 and IL-10 production with disease progression. Inhibition of individual cytokines did not significantly alter disease incidence, potentially indicating redundancy in cytokine responses. These results therefore characterize a new high-incidence model for alopecia areata in C57BL/6J mice, the first to our knowledge to apply a monoclonal TCR, and indicate that class I MHC-restricted CD8(+) T lymphocytes can independently mediate the pathologic response.
Adrenal Function in Normal Women and Women with the Poly cystic Ovary Syndrome* (1979)

The role of the adrenal gland in the polycystic ovary syndrome (PCO) was reassessed. A series of C19 and C21 steroids and pituitary hormones was investigated by measurements of serum cortisol, dehydroepiandrosterone (DHEA), an-drostenediol (Adiol), androstenedione (A), testosterone (T), pregnenolone (Pe), 17-hydroxypregnenolone (17Pe), progester-one (Po), 17-hydroxyprogesterone (17Po), DHEA sulphate, sex hormone-binding globulin (SHBG), LH, FSH, and PRL in nine normal women in the early follicular phase of the menstrual cycle and nine women with PCO. Fluctuations of C19 and their C21 precursors were determined during the 24-h endogenous ACTH swings. The responses to dexamethasone suppression and to subsequent stimulation with two small pulses (200 ng/1.5 m2) of ACTH (to assess adrenal sensitivity) and an infusion (20 μg/2 h) of ACTH (to assess adrenal capacity) were analyzed. Significantly elevated basal levels of A, T, 17Po, and LH were found in the PCO group. In the normal subjects, a circadian rhythm significantly synchronized with the cortisol rhythm was found for all four C19 steroids (DHEA, Adiol, A, and T) and their C21 precursors (Pe, 17Pe, and 17Po), with the exception of Po. In PCO patients, there was a blunting of the midnight nadir for A, T, and 17Po. A significant and quantitatively similar suppression i n response to dexamethasone was found for all steroid hormones, except Po, in both groups of subjects. The responses to the pulses of ACTH were also similar in the two groups, but in response to the infusion of ACTH there was a significantly greater increase in circulating levels of DHEA, 17Pe, Po, and 17Po and a significantly smaller increase in Adiol, A, and T in the PCO group compared with the normal group. Cortisol and Pe responses were similar in the two groups. The selective hyperresponses of adrenal steroids in PCO patients, disclosed only under sustained adrenal stimulation, are compatible with a secondary effect of increased androgen production rather than a classical enzyme block.
Multiclass Brain–Computer Interface Classification by Riemannian Geometry (2011)

This paper presents a new classification framework for brain-computer interface (BCI) based on motor imagery. This framework involves the concept of Riemannian geometry in the manifold of covariance matrices. The main idea is to use spatial covariance matrices as EEG signal descriptors and to rely on Riemannian geometry to directly classify these matrices using the topology of the manifold of symmetric and positive definite (SPD) matrices. This framework allows to extract the spatial information contained in EEG signals without using spatial filtering. Two methods are proposed and compared with a reference method [multiclass Common Spatial Pattern (CSP) and Linear Discriminant Analysis (LDA)] on the multiclass dataset IIa from the BCI Competition IV. The first method, named minimum distance to Riemannian mean (MDRM), is an implementation of the minimum distance to mean (MDM) classification algorithm using Riemannian distance and Riemannian mean. This simple method shows comparable results with the reference method. The second method, named tangent space LDA (TSLDA), maps the covariance matrices onto the Riemannian tangent space where matrices can be vectorized and treated as Euclidean objects. Then, a variable selection procedure is applied in order to decrease dimensionality and a classification by LDA is performed. This latter method outperforms the reference method increasing the mean classification accuracy from 65.1% to 70.2%.
Differential efficacy of bortezomib plus chemotherapy within molecular subtypes of diffuse large B-cell lymphoma (2009)

Gene expression profiling of diffuse large B-cell lymphoma (DLBCL) has revealed distinct molecular subtypes that include germinal center B cell-like (GCB) and activated B cell-like (ABC) DLBCL. ABC DLBCL has a worse survival after upfront chemotherapy and is characterized by constitutive activation of the antiapoptotic nuclear factor-kappa B (NF-kappaB) pathway, which can inhibit chemotherapy. We hypothesized that inhibition of NF-kappaB might sensitize ABC but not GCB DLBCL to chemotherapy and improve outcome. As the proteasome inhibitor bortezomib can inhibit NF-kappaB through blocking IkappaBalpha degradation, we investigated bortezomib alone followed by bortezomib and doxorubicin-based chemotherapy in recurrent DLBCL. Tumor tissue was analyzed by gene expression profiling and/or immunohistochemistry to identify molecular DLBCL subtypes. As a control, we showed that relapsed/refractory ABC and GCB DLBCL have equally poor survivals after upfront chemotherapy. Bortezomib alone had no activity in DLBCL, but when combined with chemotherapy, it demonstrated a significantly higher response (83% vs 13%; P < .001) and median overall survival (10.8 vs 3.4 months; P = .003) in ABC compared with GCB DLBCL, respectively. These results suggest bortezomib enhances the activity of chemotherapy in ABC but not GCB DLBCL, and provide a rational therapeutic approach based on genetically distinct DLBCL subtypes. This trial is registered with http://www.ClinicalTrials.gov under identifier NCT00057902.
BAC library construction of Zhongmiansuo 12 with high yield, high quality and disease resistance (2004)

Analysis results of 132 recombinants indicated that the insert DNA size ranged from 50 to 150 kb, averaged 120 kb. As much as 87.7% clones had inserts over 100 kb, and 56% clones over 110 kb. The empty clone was less than 1% in the library. This library provided a useful tool for the cotton genome research.
Grain Size Distribution Analysis from 3D Laser Scan Data (2011)

The goal of this project was to see if information on the grain size distribution of a patch of cobbles could be obtained from the digital terrain model constructed from a laser scan of the cobble surface. The grain size distribution was to be extracted from the laser scans by the use of semivariograms. This was inspired by the research done by Hodge et al. (2009), who did the same. The results were compared to the results found by Hodge et al. (2009). In order to investigate getting information on GSD from laser scans properly, two different patches were made. Then the sizes of the cobbles were measured manually, in order to check the results from the future semivariograms. After that, both line laser scans were made and a 3D scan was made. Due to time constraints and experimental limitations, only one cobble surface was line scanned, and only one (the other) surface was 3D laser scanned. After all, only the line laser scans were processed. Then semivariograms were produced. It was found that if the manually measured data were compared with the variograms, correlations could be found for lags which corresponded to the grain sizes. But actual distinct fractal ranges couldn’t be seen. So, the use of only variograms (so without the manually measured data) is too ambiguous to be reliable. This result corresponded to the results from Hodge et al, who also could see the multifractal behavior of the cobbles, but not the distinct ranges.
Two-way interference channels (2012)

We consider two-way interference channels (ICs) where forward and backward channels are ICs but not necessarily the same. We first consider a scenario where there are only two forward messages and feedback is offered through the backward IC for aiding forward-message transmission. For a linear deterministic model of this channel, we develop inner and outer bounds that match for a wide range of channel parameters. We find that the backward IC can be more efficiently used for feedback rather than if it were used for independent backward-message transmission. As a consequence, we show that feedback can provide a net increase in capacity even if feedback cost is taken into consideration. Moreover we extend this to a more general scenario with two additional independent backward messages, from which we find that interaction can provide an arbitrarily large gain in capacity.
Main-chain porphyrin polymers. 1. Synthesis and characterization of polyethers containing porphyrin units and their metal derivatives (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMain-chain porphyrin polymers. 1. Synthesis and characterization of polyethers containing porphyrin units and their metal derivativesEmilio Scamporrino and Daniele VitaliniCite this: Macromolecules 1992, 25, 6, 1625–1632Publication Date (Print):March 1, 1992Publication History Published online1 May 2002Published inissue 1 March 1992https://doi.org/10.1021/ma00032a001RIGHTS & PERMISSIONSArticle Views336Altmetric-Citations29LEARN 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 InReddit PDF (689 KB) Get e-Alerts Get e-Alerts