gebhart/patrepeval huggingface dataset:
Multispectral imaging as a potential predictor of treatment efficacy for Kaposi's sarcoma skin lesions (2012)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text J. M. Kainerstorfer, M. N. Polizzotto, T. S. Uldrick, M. Hassan, R. Rahman, L. Najafizadeh, K. M. Wyvill, K. Aleman, P. D. Smith, R. Yarchoan, and A. H. Gandjbakhche, "Multispectral imaging as a potential predictor of treatment efficacy for Kaposi's sarcoma skin lesions," in Biomedical Optics and 3-D Imaging, OSA Technical Digest (Optica Publishing Group, 2012), paper BSu3A.58. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Visual aids in 3D point selection experiments (2014)

We present a study investigating the influence of visual aids on 3D point selection tasks. In a Fitts' law pointing experiment, we compared the effects of texturing, highlighting targets upon being touched, and the presence of support cylinders intended to eliminate floating targets. Results of the study indicate that texturing and support cylinders did not significantly influence performance. Enabling target highlighting increased movement speed, while decreasing error rate. Pointing throughput was unaffected by this speed-accuracy tradeoff. Highlighting also eliminated significant differences between selection coordinate depth deviation and the deviation in the two orthogonal axes.
Evaluation of a portable differential continuous flow centrifuge for concentration ofCryptosporidiumoocysts andGiardiacysts from water (1999)

Journal Article Evaluation of a portable differential continuous flow centrifuge for concentration of Cryptosporidium oocysts and Giardia cysts from water Get access U. Zuckerman, U. Zuckerman Department of Human Microbiology, Sackler School of Medicine, Tel Aviv UniversityFaculty of Civil Engineering, Environmental & Water Resources Engineering, Technion, Haifa, IsraelMekorot Water Co. Ltd, Nazareth, Israel Search for other works by this author on: Oxford Academic Google Scholar R. Armon, R. Armon Faculty of Civil Engineering, Environmental & Water Resources Engineering, Technion, Haifa, Israel Search for other works by this author on: Oxford Academic Google Scholar S. Tzipori, S. Tzipori Department of Comparative Medicine, School of Veterinary Medicine, Tufts University, MA, USA, and Search for other works by this author on: Oxford Academic Google Scholar D. Gold D. Gold Department of Human Microbiology, Sackler School of Medicine, Tel Aviv University Search for other works by this author on: Oxford Academic Google Scholar Journal of Applied Microbiology, Volume 86, Issue 6, 1 June 1999, Pages 955–961, https://doi.org/10.1046/j.1365-2672.1999.00776.x Published: 01 June 1999 Article history Received: 28 October 1998 Revision received: 10 February 1999 Accepted: 16 February 1999 Published: 01 June 1999
Are There Any Sensitive and Specific Sex Steroid Markers for Polycystic Ovary Syndrome? (2009)

Women with PCOS have elevated levels of sex steroid precursors, estrogens, androgens, and glucuronidated androgen metabolites as measured with a specific and sensitive mass spectrometry-based technique. The combination of elevated estrone (>50 pg/ml) and free testosterone (>3.3 pg/ml) appeared to discriminate with high sensitivity and specificity between women with and without PCOS.
Esophagomediastinal Fistula Closed Endoscopically in a Young Patient With Tuberculosis and Human Immunodeficiency Virus (2023)

Tuberculosis is a primary lung disease that can spread to the lymph nodes, vertebrae, and gastrointestinal tract. The esophagus can be affected by mediastinal lymphadenitis, mostly in immunocompromised patients, leading to the formation of esophagomediastinal fistulas. They can cause dysphagia, pleuritic chest pain, and choking coughs from recurrent aspiration. The treatment is surgery but endoscopic interventions using over-the-scope endoclips, stents, medical adhesives, and sutures are successful alternatives. We present a case of an esophagomediastinal fistula in a patient with tuberculosis and human immunodeficiency virus that was successfully treated with through-the-scope endoclips.
Effect of Microstructure on Torsional Fatigue Endurance of Martensitic Carbon Steel (2009)

The microstructural influence of martensitic carbon steel on torsional fatigue endurance was investigated, taking into consideration the application of high strength steel electric resistance welded (ERW) tubes to automotive structural parts. The chemical composition of the base steel alloy was 0.1-0.2%C-0.2-1.5%Si-1.3-1.9%Mn-0.01%P-0.001%S-(Cr, Mo, Ti, Nb, B). Laboratory vacuum-fused ingots were hot-rolled, heated to 1023 or 1223 K in a salt bath, and then water-quenched and tempered at 473 K. Consequently, three types of microstructure, martensite (M), martensite and ferrite (M+F), and ferrite and pearlite (F+P), were prepared. Fully reversed torsional fatigue testing was conducted with 6 mm diameter round bar specimens. Torsional fatigue endurance was found to monotonously increase with increases in the tensile strength of the specimen from 540 to 1380 MPa. The martensitic single structure and the M+F dual-phase structure showed a similar level of fatigue endurance at a tensile strength of approximately 950 MPa. However, fatigue micro-crack morphology varied slightly between them. At the surface of the M+F specimen, many small cracks were observed in addition to the main crack. Conversely, in the martensitic specimen, these small cracks were rarely observed. ΔK decreasing/increasing crack growth testing with compact tension (CT)-type specimens was also conducted. Based on these experimental results, the effect of microstructure and stress level on the initiation/propagation cycle ratio is discussed. In addition to fatigue properties, some practical properties, such as low-temperature toughness and hydrogen embrittlement resistance, were also evaluated in view of actual applications for automotive structural parts.
Reductive deposition of Au<sup>3+</sup>(aq) on o×idized silicon surfaces (2000)

X-ray photoelectron spectroscopy (XPS) is used to determine the oxidation state of gold deposited from an aqueous solution of AuCl4 - on to various oxidized surfaces of silicon. Although the observed Au4f signal decreased with the thickness of the oxide layer, the oxidation state of Au was determined as 0 for all the samples analyzed. From the angular dependence of the Si2p and Au4f signals it was determined that Au is deposited on top of the oxidized surfaces of metallic silicon. It is postulated that from an aqueous solution of AuCl 4 - , gold would deposit in its zerovalent form on to any surface due to its large and positive electrochemical reduction potential ( e red ° (Au 3+ /Au) = +1.50 V) and the substrate plays a role only in providing active deposition sites. To further support the proposal, it is shown that the same process takes place even in inert and hydrophobic polypropylene substrates. Similarly, it is also shown that more gold deposits if the surface of the polypropylene is made less hydrophobic (but probably more active) via the industrially used corona discharge treatment.
Lifetime evaluation for Hybrid-Drain-embedded Gate Injection Transistor (HD-GIT) under practical switching operations (2018)

Reliability of a GaN-based Hybrid-Drain-embedded Gate Injection Transistor (HD-GIT) under continuous switching operation is investigated to extract the lifetime under a practical switching application. Switching lifetimes are deduced by varying ambient temperature, switching voltage and switching current to obtain their corresponding acceleration factors. Based on the obtained factors, we determine Switching Safe Operating Area (SSOA) that is proposed recently to define the I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ds</sub> -V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ds</sub> area inside which the device can be switched safely. To our knowledge, this is the first demonstration of SSOA for a GaN power transistor. We estimate the switching lifetime when the HD-GITs are employed in 3 kW totem-pole power factor correction (PFC) circuit under a typical usage condition. The estimated lifetime is 24 years, which we believe is sufficiently long.
Development of the indicator-photopolymer chemistries for multianalyte sensor arrays (1995)

Remediation of ground and waste water facilities requires the analysis of the pollutants. Multianalyte fiber-optic chemical sensors based on indicators have been developed, with multiple indicators immobilized at the distal end of a single imaging fiber. By coupling the imaging fibers to a charge coupled device detector, one can spatially and spectrally discriminate the multiple sensing sites and hence monitor multiple analyte concentrations simultaneously. This report describes the development of the indicator chemistry and immobilization procedures developed for pH, Al{sup 3+}, and hydrocarbons. A polymer matrix is used to mass transfer the analyte to the indictor.
Electromagnetic and electromagnetic wave‐absorbing properties of the SrTiO3–Epoxy composite (1999)

The effects of SrTiO3 content on the electromagnetic properties and electromagnetic wave-absorbing characteristics of SrTiO3–epoxy composites were investigated. Also, the frequency dispersion behavior of the complex permittivity of composites was demonstrated. The complex permittivity and permeability were measured using a network analyzer in the frequency range of 130 MHz to 10 GHz. As the SrTiO3 content increased, it was found that the complex permittivity and permeability of the composites increased and the resonance frequency moved toward low frequency range. The logarithmic model coincided with the effective permittivity of composite as a function of SrTiO3 content comparatively well. The resonance frequency of composites was found to show good agreement with the theoretical values calculated by the equation proposed in this article. The electromagnetic wave-absorbing behavior showed that the center frequency of attenuation curve was shifted to a lower frequency band with increasing the amount of SrTiO3 and the thickness of composite. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 72: 75–83, 1999
The Molybdenum Oxide Interface Limits the High-Temperature Operational Stability of Unencapsulated Perovskite Solar Cells (2020)

We report on the improved operational stability of unencapsulated perovskite solar cells (PSCs) aged in an ambient atmosphere at elevated temperatures (70 °C) for >1000 h under constant illumination and bias at 30–50% relative humidity. We identify a previously unseen interfacial degradation mechanism concerning the use of a MoOx interlayer, which was originally added to increase operational stability. Specifically, the hole-transport layer/MoOx interface buckles under illumination at 70 °C, which leads to delamination and rapid losses of short-circuit current density corresponding to an average t80 of ∼55 h. By judiciously evaluating various hole-transport layers, interlayers, and contacts, we find that replacing the MoOx with a VOx interlayer, regardless of the other components in the solar cell, alleviates this buckling issue due to its higher activation barrier toward crystallization, leading to significant gains in PSC operational stability. Unencapsulated devices aged in an ambient atmosphere with a VOx interlayer retain 71% of their initial PCE on average after constant illumination and bias at 70 °C for 1100 h (t80 ∼ 645 h). Currently, this is the highest temperature reported for the operational stability of unencapsulated n-i-p PSCs aged in air. Identification of a new facet of the complex degradation mechanisms in PSCs will allow for targeted acceleration testing to speed the deployment of low-cost, long-lasting electricity generation under realistic operating temperatures.
ChemInform Abstract: Stereoselective Synthesis of Polycyclic Ring Systems via the Tandem Diels‐Alder Reaction. (1995)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
High resolution synteny maps allowing direct comparisons between the coffee and tomato genomes (2010)

Tomato (Solanum lycopersicum) and coffee (Coffea canephora) belong to the sister families Solanaceae and Rubiaceae, respectively. We report herein the mapping of a common set of 257 Conserved Ortholog Set II genes in the genomes of both species. The mapped markers are well distributed across both genomes allowing the first syntenic comparison between species from these two families. The majority (75%) of the synteny blocks are short (<4 cM); however, some extend up to 50 cM. In an effort to further characterize the synteny between these two genomes, we took advantage of the available sequence for the tomato genome to show that tomato chromosome 7 is syntenic to half of the two coffee linkage groups E and F with the putative break point in tomato localized to the boundary of the heterochromatin and euchromatin on the long arm. In addition to the new insight on genome conservation and evolution between the plant families Solanaceae and Rubiaceae, the comparative maps presented herein provide a translational tool by which coffee researchers may take benefit of DNA sequence and genetic information from tomato and vice versa. It is thus expected that these comparative genome information will help to facilitate and expedite genetic and genomic research in coffee.
Wearable Microsystem for Minimally Invasive, Pseudo-Continuous Blood Glucose Monitoring: The e-Mosquito (2017)

This paper presents a wearable microsystem for minimally invasive, autonomous, and pseudo-continuous blood glucose monitoring, addressing a growing demand for replacing tedious fingerpricking tests for diabetic patients. Unlike prevalent solutions which estimate blood glucose levels from interstitial fluids or tears, our design extracts a whole blood sample from a small lanced skin wound using a novel shape memory alloy (SMA)-based microactuator and directly measures the blood glucose level from the sample. In vitro characterization determined that the SMA microactuator produced penetration force of 225 gf, penetration depth of 3.55 mm, and consumed approximately 5.56 mW·h for triggering. The microactuation mechanism was also evaluated by extracting blood samples from the wrist of four human volunteers. A total of 19 out of 23 actuations successfully reached capillary vessels below the wrists producing blood droplets on the surface of the skin. The integrated potentiostat-based glucose sensing circuit of our e-Mosquito device also showed a good linear correlation (R<sup>2</sup> = 0.9733) with measurements using standard blood glucose monitoring technology. These proof-of-concept studies demonstrate the feasibility of the e-Mosquito microsystem for autonomous intermittent blood glucose monitoring.
Scaffoldless Tissue-engineered Dental Pulp Cell Constructs for Endodontic Therapy (2014)

A major cause of apical periodontitis after endodontic treatment is the bacterial infiltration which could have been challenged by the presence of a vital pulp. In this study, self-assembled, scaffoldless, three-dimensional (3D) tissues were engineered from dental pulp cells (DPCs) and assessed as a device for pulp regeneration. These engineered tissues were placed into the canal space of human tooth root segments that were capped on one end with calcium phosphate cement, and the entire system was implanted subcutaneously into mice. Histological staining indicated that after three- and five-month implantations, tooth roots containing 3D scaffoldless engineered tissues maintained a cellular, fibrous tissue throughout, whereas empty tooth roots remained predominantly empty. Immunostaining indicated that the tissue found in the root canals containing scaffoldless DPC engineered tissues was vascular, as characterized by the expression of CD31, and contained odontoblast-like cells organized along the length of the root wall as assessed by immunostaining for dentin sialoprotein. This study shows that 3D self-assembled scaffoldless DPC engineered tissues can regenerate a vital dental pulp-like tissue in a tooth root canal system and are therefore promising for endodontic therapy.
Study on the Mechanism of Diarylethene Crystal Growth by In Situ Microscopy and the Crystal Growth Controlled by an Aluminum Plasmonic Chip (2018)

The microcrystalline film of an open-ring isomer (1o) of diarylethene 1 was prepared on an Al plasmonic chip with a grating structure. Photoisomerization from 1o to the closed-ring isomer (1c) and growth of needle-shaped crystals in 1c were observed in situ under an upright-inverted microscope. In the center part of the film, crystal growth of needle-shaped-crystal of 1c was observed upon UV irradiation from the top side, but not upon UV irradiation from the bottom side. However, crystallization occurred at the edge of the film upon UV irradiation from the bottom side. It was suggested that crystal growth of 1c required a high mobility of 1c near the film surface. Furthermore, the existence of 1o platform is also found to be required for alignment of 1c molecules by the results under the irradiation from the bottom and top sides. With the Al plasmonic chip, the conversion rate from 1o to 1c was larger inside the grating by the plasmonic enhanced field. Therefore, when the attenuated UV light was irradiated to the film edge with high mobility of 1c from the bottom side, the conversion rate was more than 60%, and the needle-shaped crystals of 1c were observed only inside the grating area. Crystal growth was controlled by the conversion rate of 1c promoted inside the grating. From the above, the larger conversion rate of 1c more than 60%, a high mobility of 1c near the film surface or edge, and the existence of the 1o platform for alignment of 1c molecules, are considered to be required for crystal growth in 1c.
The interaction between a spatially oscillating jet emitted by a fluidic oscillator and a cross-flow (2019)

This experimental study investigates the fundamental flow field of a spatially oscillating jet emitted by a fluidic oscillator into an attached cross-flow. Dominant flow structures, such as the jet trajectory and dynamics of streamwise vortices, are discussed in detail with the aim of understanding the interaction between the spatially oscillating jet and the cross-flow. The oscillating jet is ejected perpendicular to the cross-flow. A moveable stereoscopic particle image velocimetry (PIV) system is employed for the plane-by-plane acquisition of the flow field. The three-dimensional, time-resolved flow field is obtained by phase averaging the PIV results based on a pressure signal from inside the fluidic oscillator. The influence of velocity ratio and Strouhal number is assessed. Compared to a common steady wall-normal jet, the spatially oscillating jet penetrates to a lesser extent into the cross-flow’s wall-normal direction in favour of a considerable spanwise penetration. The flow field is dominated by streamwise-oriented vortices, which are convected downstream at the speed of the cross-flow. The vortex dynamics exhibits a strong dependence on the Strouhal number. For small Strouhal numbers, the spatially oscillating jet acts similar to a vortex-generating jet with a time-dependent deflection angle. Accordingly, it forms time-dependent streamwise vortices. For higher Strouhal numbers, the cross-flow is not able to follow the motion of the jet, which results in a quasi-steady wake that forms downstream of the jet. The results suggest that the flow field approaches a quasi-steady behaviour when further increasing the Strouhal number.
Comparative study on growth characteristics and electrical properties of ZrO2 films grown using pulsed plasma-enhanced chemical vapor deposition and plasma-enhanced atomic layer deposition for oxide thin film transistors (2017)

The deposition of high-quality ZrO2 films has been achieved using both pulsed plasma-enhanced chemical vapor deposition (P-PE-CVD) and plasma-enhanced atomic layer deposition (PE-ALD) with (C5H5)Zr[N(CH3)2]3 as a Zr precursor. The authors compared the growth characteristics, chemical compositions, and electrical properties of P-PE-CVD and PE-ALD ZrO2 prepared under various deposition conditions. The ZrO2 films prepared using both methods showed high purity and good stoichiometry. Electrical characterization of a metal-oxide-semiconductor capacitor utilizing the ZrO2 films showed that PE-ALD films have a relatively lower leakage current than P-PE-CVD films, whereas the dielectric constant, interface trap density, and hysteresis of both films are similar. Applying both methods, the electrical properties of ZrO2 films were also evaluated using In–Ga–Zn–O thin-film transistors (TFTs), which showed a good device performance in terms of high Ion-Ioff ratios (&amp;gt;108) and low off-currents (&amp;lt;10−11 A). In addition, ZrO2-based TFT showed high reliability against a negative Vth shift. Based on the self-limiting growth characteristics and electrical properties of P-PE-CVD, the authors found that the P-PE-CVD process results in electrical properties comparable to those of PE-ALD ZrO2 films. Thus, the authors believe that P-PE-CVD can be an alternative process to PE-ALD for future electronic device applications, especially for display applications due to its good electrical properties with high throughput.
Political Epistemology, Technocracy, and Political Anthropology: Reply to a Symposium on Power Without Knowledge (2022)

A political epistemology that enables us to determine if political actors are likely to know what they need to know must be rooted in an ontology of the actors and of the human objects of their knowledge; that is, a political anthropology. The political anthropology developed in Power Without Knowledge envisions human beings as creatures whose conscious actions are determined by their interpretations of what seem to them to be relevant circumstances; and whose interpretations are, in turn, determined by webs of belief built from somewhat heterogeneous streams of incoming ideas. This anthropology, then, has two components. Ideational heterogeneity undermines the aspiration of technocracy to predict human behavior and the aspiration of social science to arrive at lawlike generalizations about it. Ideational determinism, however, which is less important than ideational heterogeneity to the critique of technocracy, may be more important to generating epistemological approaches to other forms of politics, all of which involve the actions of human beings who, as such, are largely at the mercy of the fallible ideas to which they have been exposed.
ChemInform Abstract: A NOVEL METHOD FOR STEREOSELECTIVE GLUCURONIDATION (1985)

Abstract In Gegenwart von Trimethylsilyl‐trifluorrnethansulfonat (III) als Katalysator erhält man aus dem Hemiacetal (I) mit Alkoholen (II) die entsprechenden Glucuronide (IV) in hohen Ausbeuten und überwiegend mit β‐Konfiguration.
Transmission over 9,100 km with a Capacity of 49.3 Tb/s Using Variable Spectral Efficiency 16 QAM Based Coded Modulation (2014)

We transmit 49.3 Tb/s over 9,100 km using 282 16QAM coded modulation channels with spectral efficiency matched to the transmission system’s spectral performance. The 81×162 Gb/s and 201×180 Gb/s channels operate at constant symbol rate and channel spacing.