gebhart/patrepeval huggingface dataset:
295: National Survey of Residency Training in Laparoscopic and Robotic Surgery (2007)

You have accessJournal of UrologyPodium 8, Sunday, May 20, 2007, 10:00 am - 12:00 pm1 Apr 2007295: National Survey of Residency Training in Laparoscopic and Robotic Surgery David A. Duchene, Alireza Moinzadeh, Inderbir S. Gill, Ralph V. Clayman, and Howard N. Winfield David A. DucheneDavid A. Duchene More articles by this author , Alireza MoinzadehAlireza Moinzadeh More articles by this author , Inderbir S. GillInderbir S. Gill More articles by this author , Ralph V. ClaymanRalph V. Clayman More articles by this author , and Howard N. WinfieldHoward N. Winfield More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(18)30560-3AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "295: National Survey of Residency Training in Laparoscopic and Robotic Surgery." The Journal of Urology, 177(4S), p. 99 © 2016 by American Urological AssociationFiguresReferencesRelatedDetails Volume 177Issue 4SApril 2007Page: 99 Advertisement Copyright & Permissions© 2016 by American Urological AssociationMetricsAuthor Information David A. Duchene More articles by this author Alireza Moinzadeh More articles by this author Inderbir S. Gill More articles by this author Ralph V. Clayman More articles by this author Howard N. Winfield More articles by this author Expand All Advertisement PDF downloadLoading ...
Detection of the Short‐Lived Radical Cation Intermediate in the Electrooxidation of N,N‐Dimethylaniline by Mass Spectrometry (2015)

The N,N-dimethylaniline (DMA) radical cation DMA(.+) , a long-sought transient intermediate, was detected by mass spectrometry (MS) during the electrochemical oxidation of DMA. This was accomplished by coupling desorption electrospray ionization (DESI) MS with a waterwheel working electrode setup to sample the surface of the working electrode during electrochemical analysis. This study clearly shows that DESI-based electrochemical MS is capable of capturing electrochemically generated intermediates with half-lives on the order of microseconds, which is 4-5 orders of magnitude faster than previously reported electrochemical mass spectrometry techniques.
Survey of Expressivity in Deep Neural Networks (2016)

We survey results on neural network expressivity described in "On the Expressive Power of Deep Neural Networks". The paper motivates and develops three natural measures of expressiveness, which all display an exponential dependence on the depth of the network. In fact, all of these measures are related to a fourth quantity, trajectory length. This quantity grows exponentially in the depth of the network, and is responsible for the depth sensitivity observed. These results translate to consequences for networks during and after training. They suggest that parameters earlier in a network have greater influence on its expressive power -- in particular, given a layer, its influence on expressivity is determined by the remaining depth of the network after that layer. This is verified with experiments on MNIST and CIFAR-10. We also explore the effect of training on the input-output map, and find that it trades off between the stability and expressivity.
Immobilization of horseradish peroxidase on PMMA nanofibers incorporated with nanodiamond (2018)

In the present study, nanodiamond (ND) was blended with polymethyl methacrylate (PMMA) and then electrospun into nanofibers (nfPMMA-ND) for the immobilization of horseradish peroxidase (HRP). The maximum immobilization efficiency of HRP (96%) was detected at 10% ND and pH 7.0. ATR-FTIR, SEM and TEM were used to characterize the immobilized enzyme. The immobilized enzyme retained 60% of its initial activity after ten reuses. The pH was shifted from 7.0 for soluble HRP to 7.5 for the immobilized enzyme. The soluble HRP had an optimum temperature of 30 °C, whereas this temperature was shifted to 40 °C for the immobilized enzyme. The substrate analogs were oxidized by immobilized HRP with higher efficiencies than those of soluble HRP. The kinetic results showed that the soluble HRP had more affinity toward guiacol and H<sub>2</sub>O<sub>2</sub> than immobilized HRP. The effect of metal ions on soluble and immobilized HRP was studied. The immobilized HRP was markedly more stable when it exposed to urea, isopropanol, butanol and heptane compared with the soluble enzyme. The immobilized HRP exhibited high resistance to proteolysis by trypsin than that of soluble enzyme. In conclusion, the nfPMMA-ND-HRP could be employed in several applications such as biosensor, biomedical and bioremediation.
10 W High Efficiency 14V HBT Power Amplifier for Space Applications (2003)

This paper presents the first development of a space-borne power amplifier using the recently developed high breakdown, high Power HBT HB20S process of UMS. The inverse F class Hybrid Power Amplifier has been designed using intensive simulation methods developed at Alcatel Space for MMICs, allowing to reach very high performances without manual tuning. The results 10 W / PAE > 65% obtained with a single chip at 1.5 GHz demonstrate the capability of the process to handle with very high power densities and efficiencies.
Mechanisms of hydroxylation by cytochrome P-450: metabolism of monohalobenzenes by phenobarbital-induced microsomes. (1983)

The monohydroxylation of halobenzenes by phenobarbital-induced rat liver microsomes was studied. The p-halophenol was found to be the major metabolite from all four halobenzenes; o-halophenol formation decreased as the halogen atom size increased. Vmax for total hydroxylation (ortho and para products) correlated well with the sigma + Hammett constant with a negative rho value. This implies a positively charged intermediate in the rate-determining step. Vmax for either ortho or para hydroxylation alone did not correlate with a Hammett constant, implying that the product-determining step occurs after the rate-determining step. Rate-determining formation of a radical cation intermediate is postulated to explain this data.
Osteotomien und Knochenblock-Techniken bei hinterer glenohumeraler Instabilität (1998)

Die hintere Instabilität kommt bei weitem weniger häufig als die vordere Instabilität vor und präsentiert sich klinisch in unterschiedlichen Formen. Mehrere Versuche wurden daher unternommen, die hintere Instabilität zu klassifizieren. Bevor wir die technischen Aspekte der unterschiedlichen Operationsverfahren beschreiben, möchten wir unsere Klassifikation und unsere Indikationen für eine Operation vorstellen (Walch und Mole 1991).
Lanthanide- and Actinide-Mediated Terminal Alkyne Hydrothiolation for the Catalytic Synthesis of Markovnikov Vinyl Sulfides (2010)

The Markovnikov-selective lanthanide- and actinide-mediated, intermolecular hydrothiolation of terminal alkynes by aliphatic, benzylic and aromatic thiols using Cp*2LnCH(TMS)2 (Cp* = C5Me5; Ln = La, Sm, Lu), Ln[N(TMS)2]3 (Ln = La, Nd, Y), Cp*2An(CH2TMS)2, and Me2SiCp′′2An(CH2R)2 (Cp′′ = C5Me4; An = Th, R = TMS; An = U, R = Ph) as precatalysts is studied in detail. These transformations are shown to be Markovnikov-selective, with selectivities as high as >99%. Kinetic investigations of the Cp*2SmCH(TMS)2-mediated reaction between 1-pentanethiol and 1-hexyne are found to be first-order in catalyst concentration, first-order in alkyne concentration, and zero-order in thiol concentration. Deuterium labeling of the alkyne −C≡C−H position reveals kH/kD = 1.40(0.1) and 1.35(0.1) for the organo-Sm- and organo-Th-catalyzed processes, respectively, along with evidence of thiol-mediated protonolytic detachment of the vinylic hydrothiolation product from the Sm center. Mechanistic findings indicate turnover-limiting alkyne insertion into the Sm−SR bond, followed by very rapid, thiol-induced M−C protonolysis to yield Markovnikov vinyl sulfides and regenerate the corresponding M−SR species. Comparisons of different substrates and metal complexes in catalyzing hydrothiolation reveal a strong dependence of hydrothiolation activity on the steric encumbrance in the insertive transition state. Observed deuterium exchange between alkyne −C≡C−H and thiol RS−H in the presence of Cp*2SmCH(TMS)2 and Me2SiCp′′2Th(CH2TMS)2 argues for a metal−alkynyl ⇌ metal−thiolate equilibrium, favoring the M−SR species under hydrothiolation conditions. A mixture of free radical-derived anti-Markovnikov vinyl sulfides is occasionally observed and can be suppressed by γ-terpinene radical inhibitor addition. Previously reported metal thiolate complex aggregation to form insoluble species is observed and can be delayed kinetically by Cp-based ligation.
Audio quality measurements for wireless microphones in spectrum pooling scenarios (2013)

In this contribution the influence of different broadband OFDM schemes on the perceptual audio quality of narrowband wireless microphone links is evaluated, since coexistence scenarios of wireless microphones and Orthogonal frequency-division multiplexing (OFDM) based services arise in the TV bands. Therefore, we present different non-contiguous cyclic-prefix (CP-)OFDM and offset quadrature amplitude modulation (OQAM-)OFDM system designs based on the spectrum pooling concept. We measure their power suppression in the subchannel allocated for the wireless microphone. As an indicator of the perceptual audio quality, we measure the objective difference grade of a colored noise audio signal emitted over a consumerlike hardware. The measurements show that the non-contiguous OQAM-OFDM scheme not only introduces lower interference to the FM link, but also has the advantage of requiring less number of notched carriers in comparison to CP-OFDM. By application of non-contiguous OQAM-OFDM with an appropriate number of notched carriers instead of the classical CP-OFDM scheme, wireless microphone systems can still sustain a significant low SIR when non-professional hardware is applied.
Expression of active human sialyltransferase ST6GalNAcI in Escherichia coli (2009)

In this work, we have expressed the human sialyltransferase ST6GalNAc I (ST6), an enzyme that sialylates O-linked glycoproteins, in Escherichia coli cells. We observed that wild-type bacterial cells are able to produce only very small amounts of soluble ST6 enzyme. We have found, however, that engineered bacterial strains which possess certain types of oxidative cytoplasm or which co-express the molecular chaperones/co-chaperones trigger factor, DnaK/DnaJ, GroEL/GroES, and Skp, can produce greatly enhanced amounts of soluble ST6. Furthermore, we have developed a novel high-throughput assay for the detection of sialyltransferase activity and used it to demonstrate that the bacterially expressed ST6 enzyme is active and able to transfer sialic acid onto a desialylated O-glycoprotein, bovine submaxillary mucin. To the best of our knowledge, this is the first example of expression of active human sialyltransferase in bacteria. This system may be used as a starting point for the evolution of sialyltransferases with better expression characteristics or altered donor/acceptor specificities.
Amyloid diseases of the heart: current and future therapies (2012)

Amyloid diseases in man are caused by as many as 23 different pre-cursor proteins already described. Cardiologists predominantly encounter three main types of amyloidosis that affect the heart: light chain (AL) amyloidosis, senile systemic amyloidosis (SSA) and hereditary amyloidosis, most commonly caused by a mutant form of transthyretin. In the third world, secondary amyloid (AA) is more prevalent, due to chronic infections and inadequately treated inflammatory conditions. Much less common, are the non-transthyretin variants, including mutations of fibrinogen, the apolipoproteins apoA1 and apoA2 and gelsolin. These rarer types do not usually cause significant cardiac compromise. Occurring worldwide, later in life and of less clinical significance, isolated atrial amyloid (IAA) also involves the heart. Heart involvement by amyloid often has devastating consequences. Clinical outcome depends on amyloid type, the extent of systemic involvement and the treatment options available. An exact determination of amyloid type is critical to appropriate therapy. In this review we describe the different approaches required to treat this spectrum of amyloid cardiomyopathies.
Modélisation de cellules de réseaux réflecteurs par réseaux de neurones artificiels (2017)

International audience
Historical Review of Research and Development of Linear Antennas in Tohoku University (2015)

Invention and development of the Yagi-Uda antenna in Tohoku University, Japan are described. Communication experiments in VHF and UHF frequency bands using transmitter and receiver developed in the same university as well as the Yagi-Uda antenna are also presented. Then, self-complementary antennas, which is the frequency independent antenna invented in Tohoku University are described. Analysis methods of large loop antennas is also presented.
Leisure-time Physical Activity and All-cause Mortality in an Elderly Cohort (2009)

Our data are consistent with the view that the mortality-sparing effect of recent physical activity is independent of the presence or absence of underlying cardiac disease and the pattern of past physical activity.
Effects of Thermal Annealing on Lead Zirconate Titanate Thin Film Capacitors with Platinum Electrodes (2007)

The effects of thermal annealing on ferroelectric thin film capacitors derived by chemical solution deposition with Pt electrodes were investigated. Sample-averaged structural information of the capacitors with different thermal histories was obtained from fitting the X-ray specular reflectivity using a homogeneous stratified multilayered structure model of . Electrical measurements showed a remarkable remanent polarization reduction of up to 8.8% and an increase of the dielectric constant at low biases with increasing annealing time from . However, no evident change to the fatigue endurance was found except for the reduced initial remanent polarization. The effects of the thermal annealing on the electrical properties of the ferroelectric capacitors are discussed in correlation with the structural changes in the ferroelectric thin films.
Secure Distributed Optimization Under Gradient Attacks (2022)

In this paper, we study secure distributed optimization against arbitrary gradient attack in multi-agent networks. In distributed optimization, there is no central server to coordinate local updates, and each agent can only communicate with its neighbors on a predefined network. We consider the scenario where out of $n$ networked agents, a fixed but unknown fraction $ρ$ of the agents are under arbitrary gradient attack in that their stochastic gradient oracles return arbitrary information to derail the optimization process, and the goal is to minimize the sum of local objective functions on unattacked agents. We propose a distributed stochastic gradient method that combines local variance reduction and clipping (CLIP-VRG). We show that, in a connected network, when unattacked local objective functions are convex and smooth, share a common minimizer, and their sum is strongly convex, CLIP-VRG leads to almost sure convergence of the iterates to the exact sum cost minimizer at all agents. We quantify a tight upper bound of the fraction $ρ$ of attacked agents in terms of problem parameters such as the condition number of the associated sum cost that guarantee exact convergence of CLIP-VRG, and characterize its asymptotic convergence rate. Finally, we empirically demonstrate the effectiveness of the proposed method under gradient attacks in both synthetic dataset and image classification datasets.
AN AUTOMATED METHOD FOR RETINAL IMAGE MATCHING USING VASCULAR FEATURES (2011)

In this paper, we propose a method for retinal image matching that can be used in image matching for person identification or patient longitudinal study. Vascular invariant features are extracted from the retinal image and a feature vector is constructed for each of the vessel-segments in the retinal blood vessels. The feature vectors are represented in a tree structure with maintaining the vessel-segments actual hierarchical positions. Using these feature vectors, corresponding images are matched. An image matching method is demonstrated which identifies the same vessel in the corresponding images for comparing the desired feature(s). Initial results demonstrate that the method is suitable for image matching and patient longitudinal study.
Topographic Transformation as a Discrete Latent Variable (1999)

Invariance to topographic transformations such as translation and shearing in an image has been successfully incorporated into feedforward mechanisms, e.g., &amp;quot;convolutional neural networks&amp;quot;, &amp;quot;tangent propagation&amp;quot;. We describe a way to add transformation invariance to a generative density model by approximating the nonlinear transformation manifold by a discrete set of transformations. An EM algorithm for the original model can be extended to the new model by computing expectations over the set of transformations. We show how to add a discrete transformation variable to Gaussian mixture modeling, factor analysis and mixtures of factor analysis. We give results on ltering microscopy images, face and facial pose clustering, and handwritten digit modeling and recognition.
Control of T-DNA Transfer from Agrobacterium tumefaciens to Plants Based on an Inducible Bacterial Toxin-Antitoxin System (2020)

High-value pharmaceutical products are already successfully produced in contained facilities using <i>Agrobacterium</i>-mediated transient transformation of plants. However, transfection methods suitable for open field applications are still desirable as a cheaper alternative. Biosafety concerns related to the use of recombinant agrobacteria in an industrial transfection process include possible transformation or transfection of unintended hosts or spread of the genetically modified agrobacteria in the environment. In this paper, we explored a novel biocontrol approach resulting in greater biosafety of the transient expression process in plants. Our proposed solution involves inducible expression of <i>Agrobacterium tumefaciens</i> toxin PemK and antitoxin PemI that provides for strictly regulated T-DNA transfer from agrobacteria to plants. We also identified several other toxins from putative <i>Agrobacterium</i> toxin-antitoxin modules and demonstrate their potential usefulness in the control of <i>Agrobacterium tumefaciens</i> as a DNA vector.
Sense amplifier based high speed flip-flop design for advanced sub-micron FinFET standard cell library (2017)

A novel high-speed sense-amplifier based flip-flop is presented in this paper. The proposed flip-flop design has improved D2Q delay and a glitch-less output. An in-depth analysis of sense-amplifier stacking order is presented and the proposed sense-amplifier design exploit multiple stacking orders of the clocked devices, input and feedback transistor and show approximately 25% overall advantage in performance of the flop as compared to the conventional variant of a flip-flop. Simulation results were obtained for sub-micron FinFET technology using industry standard production characterization setup. Monte Carlo stress checks were performed on the proposed designs to ensure bug-free operation and high-yield at the time of fabrication.
Surface modification of polymers by a nanosecond-pulse plasma jet (2012)

Cold atmospheric-pressure plasma is rich in active particles, with good physical and chemical properties. It has a wide range of applications in areas such as surface modification of materials, and biomedical and environmental treatment. A dielectric barrier discharge is a traditional way to generate cold plasma, but its confined discharge gap limits some applications. The plasma jet is a method to produce plasma beyond the plasma generation region, and has a relatively simple electrode structure. It can be applied in a narrow space and on complex surfaces. In this paper, a single needle electrode is used to generate a plasma jet that is driven by unipolar repetitive nanosecond pulses with rise time of 25 ns and a full width at half maximum of 40 ns. The characteristics under different experimental conditions are observed. On the basis of previous work, film surfaces of polyethylene terephthalate and polymethylmethacrylate are modified, and hydrophilic and hydrophobic results are achieved correspondingly.
Forward collision warning requirements project: Refining the CAMP crash alert timing approach by examining "last-second" braking and lane change maneuvers under various kinematic conditions (2003)

This final report describes a follow-on study to the previous Crash Avoidance Metrics Partnership (CAMP) human factors work addressing Forward Collision Warning (FCW) timing requirements. This research extends this work by gathering not only braking maneuver data, but also data from steering (or lane-change) maneuvers. Drivers performed last-second braking and steering maneuvers under instructions for normal or hard intensity responses under a wide variety of vehicle-to-vehicle kinematic scenarios. This strategy of varying instruction during these last-second maneuvers was taken so that drivers' perceptions of normal and non-normal kinematics situations (or envelopes) could be properly identified and modeled for crash alert timing purposes. In addition, unlike the previous CAMP work that only examined lead vehicle stationary and lead vehicle braking scenarios, the current study also included scenarios where the lead vehicle was moving at a slower but constant speed prior to the last-second maneuver. Results provided validation of the Required Deceleration Model developed in the prior CAMP FCW project. In addition, a new model was developed, referred to as the 3-Tiered Inverse Time-To-Collision Model. This promising model assumes the driver deceleration response (in response to the crash alert) is based on an inverse Time-To-Collision threshold that decreases linearly with speed. One advantage of this model is that it requires only coarse (rather than accurate) knowledge of lead vehicle deceleration levels.
Daily Rifapentine for Treatment of Pulmonary Tuberculosis. A Randomized, Dose-Ranging Trial (2014)

Daily rifapentine was well-tolerated and safe. High rifapentine exposures were associated with high levels of sputum sterilization at completion of intensive phase. Further studies are warranted to determine if regimens that deliver high rifapentine exposures can shorten treatment duration to less than 6 months. Clinical trial registered with www.clinicaltrials.gov (NCT 00694629).