gebhart/patrepeval huggingface dataset:
Mechanism of electroluminescence in dye doped thiophene based conjugated polymer (2001)

The optical and electrical properties of polymer light emitting diodes based on poly [2-(3-thienyl) ethanol butoxy carbonyl-methyl urethane] as emitting layer have been studied. The diode structures have been made by utilizing indium tin oxide coated glass as an anode and aluminum as a cathode. Polyaniline and tris(8-hydroxy-quinolino) aluminum have been employed as hole and electron transport layers, respectively. Enhanced electroluminescence (EL) near the turn-on voltage has been observed on addition of 4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran dye. On the basis of current–voltage, luminance–voltage, capacitance–voltage, and impedance measurements, an attempt has been made to understand the mechanism of EL emission in these polymeric light emitting diodes.
An Investigation of Low-Level Signal Descriptors Characterizing the Noise-Like Nature of an Audio Signal (2010)

This publication presents an overview and an evaluation of low-level features characterizing the noiselike or tonelike nature of an audio signal. Such features are widely used for content classification, segmentation, identification, coding of audio signals, blind source separation, speech enhancement and voice activity detection. Besides the widely used Spectral Flatness Measure various alternative descriptors exist. These features are reviewed and the requirements for these features are discussed. The features in scope are evaluated using synthetic signals and exemplarily real-world applications related to audio content classification, namely voiced-unvoiced discrimination for speech signals and speech detection.
In defense of brain-inspired cognitive models (2013)

The human brain excels at recognizing objects across modalities. In my research I seek to harness the neurocomputational principles that underlie these cognitive abilities by building brain-inspired cognitive models of attention and object recognition. My models have given insight into human cognition while also excelling at machine perception. Specifically, in this dissertation I describe four brain-inspired models. I first describe SUN, a saliency-based model of task-driven visual search. SUN uses independent component analysis (ICA) to learn image filters with properties that are qualitatively similar to simple cells in primary visual cortex, and it uses these filters to predict human eye movements. Then I describe NIMBLE, an approach to active object recognition using SUN and simulated eye movements. Subsequently, I describe Gnostic Fields, a brain-inspired model that attacks the universal stimulus recognition problem. Gnostic Fields achieve state-of-the-art performance on benchmark datasets for music, image, and odor classification. Lastly, I combine Gnostic Fields with a space-variant model of visual processing learned using ICA and assess the model's ability to classify objects and faces in images
Isothermal Behavior of the Soret Effect in Nonionic Microemulsions: Size Variation by Using Different n-Alkanes (2014)

In this work we investigate the thermodiffusion behavior of microemulsion droplets of the type H2O/n-alkane/C12E5 (pentaethylene glycol monododecyl ether) using the n-alkanes: n-octane, n-decane, n-dodecane, and n-tetradecane. In order to determine the thermodiffusion behavior of these microemulsion droplets, we apply the infrared thermal diffusion forced Rayleigh scattering (IR-TDFRS) technique. We measure the Soret coefficient (ST) as function of the structure upon approaching the emulsification failure boundary (efb) and as a function of the radius of the spherical o/w microemulsion droplets close to the efb. By varying the chain length of the n-alkanes, we are able to study the thermodiffusion behavior of spherical o/w microemulsion droplets of different sizes at the same temperature. In the investigated range a linear dependence of the Soret coefficient as function of the radius was found. By use of a proposed relationship between the Soret coefficient and the temperature dependence of the interfacial tension, the transition layer l could be determined for the first time. Additionally, small angle neutron scattering (SANS) experiments are performed to determine the size and to prove that the shape of the microemulsion droplets is spherical close to the efb. Accordingly, the scattering curves could be quantitatively described by a combination of a spherical core-shell form factor and sticky hard sphere structure factor.
Hard and soft contact lens fitting in infants. (1987)

Les resultats de cette etude illustrent les avantages possibles des lentilles dures permeables au gaz chez les tres jeunes enfants
Highly Stretchable and Strain‐Insensitive Liquid Metal based Elastic Kirigami Electrodes (LM‐eKE) (Adv. Funct. Mater. 30/2023) (2023)

Elastic Kirigami In article number 2301388, a liquid metal (LM) based elastic Kirigami Electrode (LM-eKE) architecture is demonstrated by Carmel Majidi, Tae-il Kim, and co-workers that is electrically conductive and can be stretched beyond the limits of traditional kirigami designs. The electrodes are composed of a biphasic film of gold and gallium-indium LM alloy on a kirigami patterned silicone substrate. The coupling between geometric and elastic deformation allows the LM-eKE to maintain highly stable electrically conductive pathways that reduces motion artifacts when collecting physiological data.
On a New SDP-SOCP Method for Acoustic Source Localization Problem (2016)

Acoustic source localization has many important applications. Convex relaxation provides a viable approach of obtaining good estimates very efficiently. There are two popular convex relaxation methods using either semi-definite programming (SDP) or second-order cone programming (SOCP). However, the performances of the methods have not been studied properly in the literature and there is no comparison in terms of accuracy and performance. The aims of this article are twofold. First of all, we study and compare several convex relaxation methods. We demonstrate, by numerical examples, that most of the convex relaxation methods cannot localize the source exactly, even in the performance limit when the time difference of arrival (TDOA) information is exact. In addressing this problem, we propose a novel mixed SDP-SOCP relaxation model and study the characteristics of the optimal solutions and its localizable region. Furthermore, an error correction scheme for the proposed SDP-SOCP model is developed so that exact localization can be achieved in the performance limit. Experimental data have been collected in a room with two different array configurations to demonstrate our proposed approach.
Mechanism of Biaxial Alignment of Oxide Thin Films during Ion‐Beam‐Assisted Deposition (1997)

The mechanism of biaxial alignment was examined for yttria‐stabilized zirconia (YSZ) and La 1−x Ca x MnO 3 (LCMO) films that were fabricated by ion‐beam‐assisted deposition (IBAD). Films that were deposited with both dual‐ion‐beam deposition and ion‐assisted electron‐beam evaporation were studied. The film texture formation was mostly dependent on the ratio of ion bombardment to molecule arrival and on the angle of the incident ions with respect to the substrate. Results were not dependent on the deposition technique. The observed IBAD YSZ and IBAD LCMO biaxial alignment did not occur because of ion channeling. It has been shown that the preferred film orientation develops because of anisotropy of ion‐induced damage on various crystal surfaces.
The effects of lumiracoxib 100 mg once daily vs. ibuprofen 600 mg three times daily on the blood pressure profiles of hypertensive osteoarthritis patients taking different classes of antihypertensive agents (2010)

Lumiracoxib 100 mg od resulted in less destabilisation of BP than high-dose ibuprofen 600 mg tid, and this effect was the greatest in subgroups treated with drugs blocking the renin-angiotensin system.
Tumor-Derived Lactic Acid Contributes to the Paucity of Intratumoral ILC2s (2020)

Group 2 innate lymphoid cells (ILC2s) are abundant in non-lymphoid tissues and increase following infectious and inflammatory insults. In solid tumors, however, ILC2s constitute a relatively small proportion of immune cells. Here, we show, using melanoma as a model, that while the IL-33/IL C2/eosinophil axis suppresses tumor growth, tumor-derived lactate attenuates the function and survival of ILC2s. Melanomas with reduced lactate production (LDHA<sup>low</sup>) are growth delayed and typified by an increased number of ILC2s compared with control tumors. Upon IL-33 stimulation, ILC2s accompanied by eosinophils more effectively restrain the growth of LDHA<sup>low</sup> tumors than control melanomas. Furthermore, database analysis reveals a negative correlation between the expression of LDHA and markers associated with ILC2s and the association of high expression of IL33 and an eosinophil marker SIGLEC8 with better overall survival in human cutaneous melanoma patients. This work demonstrates that the balance between the IL-33/ILC2/eosinophil axis and lactate production by tumor cells regulates melanoma growth.
Sequential polymerization of ethylene oxide, ε-caprolactone and l-lactide: a one-pot metal-free route to tri- and pentablock terpolymers (2014)

Triblock and pentablock terpolymers are prepared <italic>via</italic> one-pot sequential polymerization of ethylene oxide, ε-caprolactone and <sc>l</sc>-lactide using a mild phosphazene base as an organic catalyst and monoalcohol or water as an initiator.
Quantitative Reflection Imaging of Fixed Aplysia californica Pedal Ganglion Neurons on Nanostructured Plasmonic Crystals (2013)

Studies of the interactions between cells and surrounding environment including cell culture surfaces and their responses to distinct chemical and physical cues are essential to understanding the regulation of cell growth, migration, and differentiation. In this work, we demonstrate the capability of a label-free optical imaging technique-surface plasmon resonance (SPR)-to quantitatively investigate the relative thickness of complex biomolecular structures using a nanoimprinted plasmonic crystal and laboratory microscope. Polyelectrolyte films of different thicknesses deposited by layer-by-layer assembly served as the model system to calibrate the reflection contrast response originating from SPRs. The calibrated SPR system allows quantitative analysis of the thicknesses of the interface formed between the cell culture substrate and cellular membrane regions of fixed Aplysia californica pedal ganglion neurons. Bandpass filters were used to isolate spectral regions of reflected light with distinctive image contrast changes. Combining of the data from images acquired using different bandpass filters leads to increase image contrast and sensitivity to topological differences in interface thicknesses. This SPR-based imaging technique is restricted in measurable thickness range (∼100-200 nm) due to the limited plasmonic sensing volume, but we complement this technique with an interferometric analysis method. Described here simple reflection imaging techniques show promise as quantitative methods for analyzing surface thicknesses at nanometer scale over large areas in real-time and in physicochemical diverse environments.
Performances study of compact printed diversity antenna in the presence of user's body for LTE mobile phone applications (2019)

In this article, three kinds of user effect are considered, namely, “specific anthropomorphic mannequin (SAM) head and personal digital assistants (PDA) hand (talk mode),” “PDA hand (data mode),” and “Dual hands (read mode)” for the performance study of the compact LTE MIMO antenna. This is in continuation of the previously published work which has been investigated in the free space. However, the designed antenna covers LTE700 (0.747-0.787 GHz) and WWAN (1.7-3.04 GHz) based on −6 dB reflection coefficient. Further, the effect of users' body is investigated by placing the planar monopole antenna (PMA) on the top and the bottom portion of the mobile printed circuit board (PCB). The performances like S-parameters, radiation performances, diversity performances, and channel capacity loss are studied and optimal location of PMA is assigned either top or bottom portion of mobile phone PCB based on the results obtained from the respective positions. Finally, the specific absorption rate is estimated and found well below the standard limit of FCC that is, less than 1.6 W/kg over 1 g tissue and European that is, 2 W/kg over 10 g tissue. In present work, it is observed that top positioned PMA provides optimal performances in the user proximity over PCB.
Solidification of a cornstarch and water suspension (2012)

We report on an investigation of the solidification of a cornstarch and water suspension during normal impact on its surface. We find that a finite time after impact, the suspension displays characteristics reminiscent of a solid, including localized stress transmission, the development of a yield stress, and some elastic energy storage. The time dependence of these characteristics depends on the thickness of the cornstarch layer, showing that the solidification is a dynamic process driven by the impacting object. These findings confirm previous speculations that rapidly applied normal stress transforms the normally fluid-like suspension into a temporarily jammed solid and draw a clear distinction between the effects of normal stress and shear stress in dense suspensions.
Nonlinear response of a MgZnO/ZnO heterostructure close to zero bias (2017)

We report on magnetotransport properties of a MgZnO/ZnO heterostructure subjected to weak direct currents. We find that in the regime of overlapping Landau levels, the differential resistivity acquires a quantum correction proportional to both the square of the current and the Dingle factor. The analysis shows that the correction to the differential resistivity is dominated by a current-induced modification of the electron distribution function and allows us to access both quantum and inelastic scattering rates.
Predictive value of Glasgow Coma Scale after brain trauma: change in trend over the past ten years. (2004)

The admission GCS lost its predictive value for outcome in this group of patients from 1997 onwards. The predictive value of the GCS should be carefully reconsidered when building prognostic models incorporating multimodality monitoring after head injury.
Desenvolvimento de um medicamento brasileiro nanoencapsulado para o tratamento da esquistossomose (2013)

Schistosomiasis is a parasitic disease that, according to the World Health Organization, constitutes a major public health problem associated with severe morbidity, mostly children in preschool age. The administration of drugs in children always constitutes a difficult task, especially when formulations are not developed specifically for pediatric use, when high doses of drug are required and the drug has a bitter taste, as in the case of praziquantel. Polymer nanoparticles are promising systems for development of encapsulated drugs with low water solubility and bitter taste, due to the good physical and chemical stability, adequate biocompatibility and simple manufacturing processes. Moreover, they can enhance the bioavailability and reduce variability of treatment among patients. Poly(methyl methacrylate) doped with praziquantel was produced through a miniemulsion polymerization process to compose a pediatric pharmaceutical suspension. Nanoparticles were characterized in terms of physico-chemical properties, toxicological properties and biological activity in mice, being concluded that obtained results were satisfactory. The results were encapsulation rate around 90%, absence of chemical interaction drug - polymer and the presence of biological activity. A collaborative approach was used for this development, involving national partnerships and independent funding mechanisms, a powerful pathway for development of drugs for neglected diseases.
Diamagnetically stabilized levitation control of an intraluminal magnetic capsule (2009)

Controlled navigation promotes full utilization of capsule endoscopy for reliable real-time diagnosis in the gastrointestinal (GI) tract, but intermittent natural peristalsis can disturb the navigational control, destabilize the capsule and take it out of levitation. The focus of the present work was to develop an economical and effective real-time magnetic capsule-guiding system that can operate in the presence of naturally existing peristalsis while retaining navigational control. A real-size magnetic navigation system that can handle peristaltic forces of up to 1.5 N was designed utilizing the computer-aided design (CAD) system Maxwell 3D (Ansoft, Pittsburg, PA) and was verified using a small-size physical experimental setup. The proposed system contains a pair of 50 cm diameter, 10,000-turn copper electromagnets with a 10 cm x 10 cm ferrous core driven by currents of up to 300 A and can successfully maintain position control over the levitating capsule during peristalsis. The addition of bismuth diamagnetic casing for stabilizing the levitating capsule was also studied. A modeled magnetic field around the diamagnetically cased permanent magnet was shown to be redistributed aligning its interaction with the external electromagnets, thus stabilizing the levitating capsule. In summary, a custom-designed diamagnetically facilitated capsule navigation system can successfully steer an intraluminal magnet-carrying capsule.
Deterministically isolated gratings through the directed self-assembly of block copolymers (2013)

Pattern customization is a necessary requirement to achieve circuit-relevant patterns using block copolymer directed self-assembly (DSA), but the edge-placement error associated with customization steps after DSA is anticipated to be at the scale of the pattern features, particularly as a result of overlay error. Here we present a new self-aligned approach to the customization of line-space patterns fabricated through chemical epitaxy. A partially inorganic chemical pattern contains a prepattern with pinning lines and non-guiding “blockout” features to which the block copolymer domains are aligned. Pattern transfer results in a line-space pattern with self-aligned customizations directly determined by the prepattern. In the transferred pattern, pinning lines determine the placement of single-line gaps while blockout features determine the placement and size of perpendicular trim across lines. By using designed two-dimensional chemical patterns, this self-aligned, bidirectional customization scheme enables the fabrication of high-resolution circuit-relevant patterns with fewer trim/exposure steps.
Segmental Relaxation Characteristics of Cross-Linked Poly(ethylene oxide) Copolymer Networks (2005)

The segmental relaxation characteristics of UV cross-linked networks based on poly(ethylene glycol) diacrylate [PEGDA] copolymerized with either poly(ethylene glycol) methyl ether acrylate [PEGMEA] or poly(ethylene glycol) acrylate [PEGA] were investigated using dynamic mechanical analysis. The molecular weights of the PEGDA cross-linker and acrylate comonomers were selected to obtain rubbery, amorphous membrane materials with constant ethylene oxide content. The introduction of PEGMEA or PEGA in the reaction mixture was used to control cross-link density and led to the insertion of flexible oligomeric branches within the resulting networks. For both copolymer series, the introduction of acrylate comonomer led to a decrease in glass transition temperature (Tg) and a systematic reduction in cross-link density; the downward shift in Tg was much more pronounced for the PEGDA/PEGMEA copolymers. Time−temperature superposition was used to construct modulus master curves across the glass transition, and these could be satisfactorily fit using the Kohlrausch−Williams−Watts (KWW) function. The KWW curve fits indicated a narrowing of the glass−rubber relaxation with reduced cross-link density that correlated with a decrease in fragility for the networks. Gas transport measurements revealed a strong sensitivity to copolymer composition for the PEGDA/PEGMEA networks (−OCH3 branch end group) as compared to the PEGDA/PEGA networks (−OH end group), with CO2 permeability and CO2/H2 selectivity increasing with increased branch content in the PEGDA/PEGMEA membranes. Both the observed glass transition and transport behavior correlated with measured variations in fractional free volume for these networks.
Context-based Barrier Notification Service Toward Outdoor Support for the Elderly (2013)

Aging society has been becoming a global problem not only in advanced countries. Under such circumstances, it is said that participation of elderly people in social activities is highly desirable from various perspectives including decrease of social welfare costs. Thus, we propose a mobile service that notifies barrier information nearby users outside to lowers the anxiety of elderly people and promote their social activities. There are barrier free maps in some areas, but those are static and updated annually at the earliest. However, there exist temporary barriers like road repairing and parked bicycles, and also every barrier is not for every elder person. That is, the elder people are under several conditions and wills to go out, so that a barrier for an elder person is not necessarily the one for the other. Therefore, we first collect the barrier information in the user participatory manner and select the ones the user need to know, then timely provide them via a mobile phone equipped with GPS. This paper shows the public experiment that we conducted in Tokyo, and confirms the usability and the accuracy of the information filtering.
Eulerian Simulation of Dense Solid-Liquid Suspension in Multi-Stage Stirred Vessel. (2001)

Eulerian approach is developed in order to determine the flow pattern and the concentration field in dense solid-liquid suspension in an industrial vessel. These numerical simulations are a very practical aid to understand and design the solid-liquid processes. The knowledge of solid distribution is useful for numerous processes, including crystallization, where vessel performance is closely linked to the solid phase distribution. The calculations are performed using the FLUENT commercial package. The crystallizer studied is used for alumina production. The predicted solid distributions in this crystallizer are compared with experimental solid distribution for several rotational speeds and mean concentrations. The agreement is remarkable. The behaviour of this dense solid-liquid system is studied.
Symposium on Human–Computer Information Retrieval (2013)

Human-computer information retrieval (HCIR) is the study of information retrieval techniques that integrate human intelligence and algorithmic search to help people explore, understand, and use information. Since 2007, we have held an annual gathering of researchers and practitioners to advance the state of the art in this field. This meeting report summarizes the history of the HCIR symposium and emphasizes its relevance to the data science community.
Healthcare Informatics and Privacy (2018)

While the Internet promises a future for universally accessible and more intelligent healthcare, the privacy of patients, doctors, nurses, and healthcare providers is of greater concern today than ever. This special issue addresses two selected important topics involved in healthcare informatics and privacy.