gebhart/patrepeval huggingface dataset:
Advanced piezoelectric single crystal based transducers for naval sonar applications (2006)

The piezoelectric, elastic and dielectric properties of PMN-PT single crystals have been evaluated for performance in high power, high duty cycle naval applications. Alternative crystal orientations, maintain high piezoelectric properties (d31 ~ -1000 pC/N), and allow for high height/width aspect ratio and the application of the pre- stress perpendicular to the poling direction. Modification of the composition of PMN-PT showed a 50-75% decrease in the low temperature ( 0.8), and one- dimensional modeling showed only a 1-8 dB drop in the source level relative to PMN-30%PT. This is an improvement as compared to state-of-the-art, by allowing a higher drive field as a result of increased temperature stability and a higher mechanical Q.
Proteomic characterization of phenotypic plasticity between metallicolous and non-metallicolous populations of Agrostis capillaris L. exposed to Cu (2012)

International audience
ASIFT: An Algorithm for Fully Affine Invariant Comparison (2011)

If a physical object has a smooth or piecewise smooth boundary, its images obtained by cameras in varying positions undergo smooth apparent deformations. These deformations are locally well approximated by affine transforms of the image plane. In consequence the solid object recognition problem has often been led back to the computation of affine invariant image local features. The similarity invariance (invariance to translation, rotation, and zoom) is dealt with rigorously by the SIFT method The method illustrated and demonstrated in this work, Affine-SIFT (ASIFT), simulates a set of sample views of the initial images, obtainable by varying the two camera axis orientation parameters, namely the latitude and the longitude angles, which are not treated by the SIFT method. Then it applies the SIFT method itself to all images thus generated. Thus, ASIFT covers effectively all six parameters of the affine transform.
Alkoxide bridged Copper(II) Hinokitiolato and Tropolonato Complexes: Polymorphism, Reconstructive Phase Transition, and Magnetic Properties (2016)

Abstract Polymorphism and an unexpected reconstructive phase transition in [Cu(trop)(μ‐OMe)] 2 (trop = tropolonate) were studied by single crystal and powder X‐ray diffraction; the phase transition is associated with a huge hysteresis of ca. 200 °C. In the readily reproducible crystal form, the methoxide‐bridged dinuclear subunits aggregate to infinite chains by longer bonds in the Jahn‐Teller distorted coordination sphere. Analogous alkoxide‐bridged derivatives with the substituted ligand hinokitiol (hino), [Cu(hino)(μ‐O R )] 2 ( R = Me, Et, i Pr) form pairs of dinuclear complexes and aggregate to discrete tetranuclear molecules. The inter‐cation distance patterns are reflected in the magnetic properties of these two structure types: Strong antiferromagnetic coupling within the dinuclear subunits is observed in either case, but susceptibility measurements confirm differences in exchange coupling between neighboring central Cu II atoms.
A Novel Dynamometer for Describing Forces and Vectors in the Long Fingers during Grip (2007)

A new dynamometer has been designed that enables the capture of multiple grip force vectors in a single squeeze. The thumb is completely isolated in the measurement ensuring these vectors are a result of only forces produced only by the long fingers. The measured force vectors can be resolved to find the overall grip force magnitude and direction if a simple measure of grip force is desired. Alternatively, due to the ability of the dynamometer to easily measure multiple vector magnitudes and angles, the instrument lends itself well to the collection of grip data to be used as input into a hand biomechanical model. An experiment was conducted to measure the maximum grip exertions of sixteen subjects on a series of cylindrical handles and this data was used for the model. The results demonstrated that the model can be implemented and that tendon tension, when normalized by grip force, continues to increase as handle size increases even though grip force magnitudes decrease.
Potentiation of C1 Esterase Inhibitor by StcE, a Metalloprotease Secreted by Escherichia coli O157:H7 (2004)

The complement system is an essential component of host defense against pathogens. Previous research in our laboratory identified StcE, a metalloprotease secreted by Escherichia coli O157:H7 that cleaves the serpin C1 esterase inhibitor (C1-INH), a major regulator of the classical complement cascade. Analyses of StcE-treated C1-INH activity revealed that surprisingly, StcE enhanced the ability of C1-INH to inhibit the classical complement-mediated lysis of sheep erythrocytes. StcE directly interacts with both cells and C1-INH, thereby binding C1-INH to the cell surface. This suggests that the augmented activity of StcE-treated C1-INH is due to the increased concentration of C1-INH at the sites of potential lytic complex formation. Indeed, removal of StcE abolishes the ability of C1-INH to bind erythrocyte surfaces, whereas the proteolysis of C1-INH is unnecessary to potentiate its inhibitory activity. Physical analyses showed that StcE interacts with C1-INH within its aminoterminal domain, allowing the unaffected serpin domain to interact with its targets. In addition, StcE-treated C1-INH provides significantly increased serum resistance to E. coli K-12 over native C1-INH. These data suggest that by recruiting C1-INH to cell surfaces, StcE may protect both E. coli O157:H7 and the host cells to which the bacterium adheres from complement-mediated lysis and potentially damaging inflammatory events.
Combining content-based analysis and crowdsourcing to improve user interaction with zoomable video (2011)

This paper introduces a new paradigm for interacting with zoomable video. Our interaction technique reduces the number of zooms and pans required by providing recommended viewports to the users, and replaces multiple zoom and pan actions with a simple click on the recommended viewport. The usefulness of our technique is visible in the quality of the recommended viewport, which needs to match the user intention, track movement in the scene, and properly frame the scene in the video. To this end, we propose a hybrid method where content analysis is complimented by the implicit feedback of a community of users in order to recommend viewports. We first compute preliminary sets of recommended viewports by analyzing the content of the video. These viewports allow tracking of moving objects in the scene, and are framed without violating basic aesthetic rules. To improve the relevance of the recommended viewports, we collect viewing statistics as users view a video, and use the viewports they select to reinforce the importance of certain recommendations and penalize others. New recommendations that are not previously recognized by content analysis may also emerge. The resulting recommended viewports converge towards the regions in the video that are relevant to users. A user study involving 70 participants shows that an user interface incorporating with our paradigm leads to more number of zooms, into more informative regions with fewer interactions.
A computational model for the automatic recognition of affect in speech (2004)

Thesis (Ph. D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2004.
Improved prediction of tone components for F0 contour generation of Mandarin speech based on the tone nucleus model (2008)

Improved prediction of tone components was realized in our method for synthesizing sentence fundamental frequency (F 0 ) contours of Mandarin speech.
Supplementary Table from Lower Airway Dysbiosis Affects Lung Cancer Progression (2023)

&lt;p&gt;Supplementary Table&lt;/p&gt;
Investigation of the hydrolytic decomposition of 5-iodine-2'-desoxyuridine by high-performance liquid chromatography. (1980)

A new HPLC method was developed for the monitoring of the hydrolytic decomposition of 5-iodine-2'-desoxyuridine in aqueous solution and for the stability assay of this compound in formulation. The separation of 5-iodine-2'-desoxyuridine and its decomposition products (5-iodineuracil and uracil) was performed on a u Bondapack C18 column using a mixture of water and methanol as eluent. On the basis of the experimental data, the kinetic order and the rate-constants of both consecutive reactions were determined.
The Unusually Long Duration Gamma‐Ray Burst GRB 000911: Discovery of the Afterglow and Host Galaxy (2002)

Of all the well-localized gamma-ray bursts, GRB 000911 has the longest duration (T90 = 500 s) and ranks in the top 1% of BATSE bursts for fluence. Here we report the discovery of the afterglow of this unique burst. In order to simultaneously fit our radio and optical observations, we are required to invoke a model involving a hard electron distribution, p ∼ 1.5, and a jet-break time less than 1.5 days. A spectrum of the host galaxy taken 111 days after the burst reveals a single emission line, interpreted as [011] at a redshift z = 1.0585, and a continuum break that we interpret as the Balmer limit at this redshift. Despite the long 790, the afterglow of GRB 000911 is not unusual in any other way when compared to the set of afterglows studied to date. We conclude that the duration of the GRB plays little part in determining the physics of the afterglow.
Phenotypic, Biochemical, and Genetic Analysis of KPC-41, a KPC-3 Variant Conferring Resistance to Ceftazidime-Avibactam and Exhibiting Reduced Carbapenemase Activity (2019)

A novel KPC variant, KPC-41, was identified in a <i>Klebsiella pneumoniae</i> clinical isolate from Switzerland. This ß-lactamase possessed a three amino-acid insertion (Pro-Asn-Lys) located between amino acids 269 and 270 compared to the KPC-3 amino acid sequence. Cloning and expression of the <i>bla</i> <sub>KPC-41</sub> gene in <i>Escherichia coli</i>, followed by determination of MIC values and kinetic parameters, showed that KPC-41, compared to KPC-3, has an increased affinity to ceftazidime and a decreased sensitivity to avibactam, leading to resistance to ceftazidime-avibactam once produced in <i>K. pneumoniae</i> Furthermore, KPC-41 exhibited a drastic decrease of its carbapenemase activity. This report highlights that a diversity of KPC variants conferring resistance to ceftazidime-avibactam already circulate in Europe.
The incorporation of wood waste ash as a partial cement replacement material for making structural grade concrete: An overview (2014)

With increasing industrialization, the industrial byproducts (wastes) are being accumulated to a large extent, leading to environmental and economic concerns related to their disposal (land filling). Wood ash is the residue produced from the incineration of wood and its products (chips, saw dust, bark) for power generation or other uses. Cement is an energy extensive industrial commodity and leads to the emission of a vast amount of greenhouse gases, forcing researchers to look for an alternative, such as a sustainable building practice. This paper presents an overview of the work and studies done on the incorporation of wood ash as partial replacement of cement in concrete from the year 1991 to 2012. The aspects of wood ash such as its physical, chemical, mineralogical and elemental characteristics as well as the influence of wood ash on properties such as workability, water absorption, compressive strength, flexural rigidity test, split tensile test, bulk density, chloride permeability, freeze thaw and acid resistance of concrete have been discussed in detail.
III-nitride nanowire array edge-emitting 1.3 μm diode laser on (001) silicon substrate (2016)

A monolithic diode laser on (001)Si is useful for silicon photonics. Ga (Al, In)N nanowires can be grown catalyst-free on silicon and other substrates [1]. The diameter of individual nanowires in an array and the array density can be varied over wide ranges. Single or multiple InGaN disks can be inserted in Ga(Al)N nanowires and the alloy composition in the disk can be varied to tune the luminescence from visible to near infrared. The nanowires have other desirable properties such as very low density of extended defects and minimal strain. They can also be selectively doped n- and p-type, thereby enabling the formation of junction diodes as with planar materials. With adequate passivation the internal quantum efficiency of GaN nanowires and the InGaN disks, which behave as quantum dots [2], is higher than 50%. We have exploited these favorable attributes to design, epitaxially grow and characterize the first edge-emitting electrically pumped GaN/In(Ga)N disk-in-nanowire lasers with the peak of the coherent emission at ~1.3pm. It may be noted that light sources with emission at wavelengths larger than 590nm cannot be realized with InGaN/GaN quantum wells. The epitaxy and characteristics of the nanowire heterostructures and the measured characteristics of the lasers are described.
Learning-based Localization of Mobile Users for Throughput Maximization in UAV Networks (2022)

In this paper, we design a new UAV-assisted communication system relying on the shortest flight path of the UAV while maximising the amount of data transmitted to mobile devices. In the considered system, we assume that UAV does not have the knowledge of user’s location except their initial position. We propose a framework which is based on the likelihood of mobile users presence in a grid with respect to their probability distribution. Then, a deep reinforcement learning technique is developed for finding the trajectory to maximize the throughput in a specific coverage area. Numerical results are presented to highlight how our technique strike a balance between the throughput achieved, trajectory, and the complexity.
P-o17 Análise fotoelástica das tensões em próteses implantossuportadas com diferentes sistemas de conexões internas (2015)

Objetivos ou Proposicao: O objetivo deste estudo foi avaliar a distribuicao de tensao de proteses implantossuportadas com diferentes conexoes internas, por meio de analise fotoelastica. Metodos: Foram confeccionados oito modelos em resina fotoelastica PL-2 com implantes de 11,5x3,75 mm (Osteofit), divididos pelo tipo de conexao interna em cone morse (CM), hexagono interno morse (HIM), cone morse hexagonal (CMH) e cone morse friccional e o numero de coroas (unitaria e 3 elementos unidos). O conjunto modelo fotoelastico-implante-protese foi posicionado em um polariscopio circular e, em seguida, foram aplicadas cargas de 100 N, em direcao axial e obliqua (45°), com ajuda de uma maquina ensaio universal (EMIC). As tensoes geradas foram registradas fotograficamente e analisadas qualitativamente em programa grafico (Adobe Photoshop). Resultados: Para carga axial os resultados mostraram que nao houve diferenca no numero e na distribuicao de franjas de alta intensidade entre os grupos testados em ambas as coroas (unitaria e 3 elementos unidas); todos apresentaram baixos valores de tensao e as tensoes concentraram-se no apice do implante. Houve um maior numero de franjas, quando da aplicacao de carga obliqua em todos os grupos. Conclusoes: Concluiu-se que os diferentes sistemas de conexao interna testados nao influenciaram diretamente no numero e na distribuicao da tensao. Que os diferentes sistemas de conexoes internas utilizados propiciaram uma melhor estabilidade de todo o sistema implante protetico, proporcionando uma melhor distribuicao de tensoes quando o pilar protetico e submetido a forcas.
Enhancing the Alignment of the Preclinical and Clinical Stroke Recovery Research Pipeline: Consensus-Based Core Recommendations From the Stroke Recovery and Rehabilitation Roundtable Translational Working Group (2017)

Stroke recovery research involves distinct biological and clinical targets compared to the study of acute stroke. Guidelines are proposed for the pre-clinical modeling of stroke recovery and for the alignment of pre-clinical studies to clinical trials in stroke recovery.
THE GOLDEN PROPORTION AND BEAUTY (1964)

SEGHERS, M. J. M.D.; LONGACRE, J. J. M.D., AND; DESTEFANO, G. A. M.D.; e, Longacr Author Information
Fully Constrained Least Squares Spectral Unmixing by Simplex Projection (2011)

We present a new algorithm for linear spectral mixture analysis, which is capable of supervised unmixing of hyperspectral data while respecting the constraints on the abundance coefficients. This simplex-projection unmixing algorithm is based upon the equivalence of the fully constrained least squares problem and the problem of projecting a point onto a simplex. We introduce several geometrical properties of high-dimensional simplices and combine them to yield a recursive algorithm for solving the simplex-projection problem. A concrete implementation of the algorithm for large data sets is provided, and the algorithm is benchmarked against well-known fully constrained least squares unmixing (FCLSU) techniques, on both artificial data sets and real hyperspectral data collected over the Cuprite mining region. Unlike previous algorithms for FCLSU, the presented algorithm possesses no optimization steps and is completely analytical, severely reducing the required processing power.
Synthesis of 6,19-Sulfamidate Bridged Pregnanes (2005)

Conformationally restrained substituted pregnane-20-one derivatives were obtained by an intramolecular nitrene addition onto a C-5/C-6 double bond involving a tethered C-19 sulfamoyl moiety. The resulting aziridine underwent regioselective nucleophilic ring opening at C-5 at room temperature with cyanide, fluoride, and acetate. In the isolated case of acetate, a reversal of regioselectivity was observed at higher temperatures, a result attributed to a rearrangement process involving aziridine ring opening at the C-5 position and subsequent migration of the acetyl moiety to C-6.
<title>Ultrafast laser processing of transparent materials</title> (2004)

The advantages of ultrafast laser processing of materials include a minimal thermal penetration region and low processing temperature, precision removal of material, and good-quality feature definition. In this paper, fs laser (800 nm, 100 fs) processing of transparent materials at different focus positions and different laser intensities is investigated. Different morphologies are presented and compared. It is found that at controlled laser fluences, both bowl-shape and hump-like microstructures can be produced at the material surfaces. The lengths of the cracks produced inside the bulk material were measured as a function of the focus positions. The physical mechanisms for the formation of different microstructures are discussed. To reduce the patterning size, we employ transparent particles as microlens on the surfaces by self-assembly. Parallel structures in nanometer scale were produced by single fs laser pulse irradiation. These nanostructures change their shapes at different laser energies. The optical near-field distribution around the particle was also calculated according to exact solution of light scattering problem.
Voltage-Controlled Magnon Transistor via Tunning Interfacial Exchange Coupling (2023)

Magnon transistors that can effectively regulate magnon transport by an electric field are desired for magnonics which aims to provide a Joule-heating free alternative to the conventional electronics owing to the electric neutrality of magnons (the key carriers of spin-angular momenta in the magnonics). However, also due to their electric neutrality, magnons have no access to directly interact with an electric field and it is thus difficult to manipulate magnon transport by voltages straightforwardly. Here, we demonstrated a gate voltage ($V_{\rm g}$) applied on a nonmagnetic metal/magnetic insulator (NM/MI) interface that bended the energy band of the MI and then modulated the possibility for conduction electrons in the NM to tunnel into the MI can consequently enhance or weaken the spin-magnon conversion efficiency at the interface. A voltage-controlled magnon transistor based on the magnon-mediated electric current drag (MECD) effect in a Pt/Y$_{\rm 3}$Fe$_{\rm 5}$O$_{\rm 12}$ (YIG)/Pt sandwich was then experimentally realized with $V_{\rm g}$ modulating the magnitude of the MECD signal. The obtained efficiency (the change ratio between the MECD voltage at $\pm V_{\rm g}$) reached 10%/(MV/cm) at 300 K. This prototype of magnon transistor offers an effective scheme to control magnon transport by a gate voltage.
Capacitor Tank-Rupture Prevention -- I2t Considerations (1978)

This paper treats capacitor tank-rupture prevention from an I <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> t viewpoint and provides for the extension of the time-to-rupture curves into the low current very long time energy domain commensurate with partial failure of the capacitors. The generation of the appropriate I <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> t curves for fuses and capacitors is presented accompanied by recommendations for the prevention of rupture utilizing expulsion and current-limiting fuses.
Medusa: a simple tool for interaction graph analysis (2005)

Medusa is a Java application for visualizing and manipulating graphs of interaction, such as data from the STRING database. It features an intuitive user interface developed with the help of biologists. Medusa is optimized for accessing protein interaction data from STRING, but can be used for any type of graph from any scientific field.
Familial Hyperprolinemia (1965)

HYPERPROLINEMIA is a familial disorder characterized by elevation of the plasma proline concentration and in some cases by an aminoaciduria consisting of increased excretion, not only of proline but also of hydroxyproline and sometimes glycine.1 , 2 Only 1 family with the disorder has been reported in the literature to date. In that family multiple disorders were present both in hyperprolinemic and in nonhyperprolinemic members. It was therefore impossible to determine whether there was any relation between the clinical findings and the biochemical defect.Another family with hyperprolinemia has now been studied; many members of this second family had renal disease of . . .
Exploring Cross-Country Prediction Model Generalizability in MOOCs (2023)

Massive Open Online Courses (MOOCs) have increased the accessibility of quality educational content to a broader audience across a global network. They provide access for students to material that would be difficult to obtain locally, and an abundance of data for educational researchers. Despite the international reach of MOOCs, however, the majority of MOOC research does not account for demographic differences relating to the learners' country of origin or cultural background, which have been shown to have implications on the robustness of predictive models and interventions. This paper presents an exploration into the role of nation-level metrics of culture, happiness, wealth, and size on the generalizability of completion prediction models across countries. The findings indicate that various dimensions of culture are predictive of cross-country model generalizability. Specifically, learners from indulgent, collectivist, uncertainty-accepting, or short-term oriented, countries produce more generalizable predictive models of learner completion.