gebhart/patrepeval huggingface dataset:
Stab wounds to the extremities: indications for angiography. (1987)

To ascertain the sensitivity of physical examination with respect to significant arterial injury, the angiographic findings of 61 stab wounds to the extremities were correlated with specific physical findings. In 25 injuries there were physical findings of major injury, including one or more of the following: pulse deficit, active bleeding or expanding hematoma, bruit or murmur, neurologic deficit, or hypotension. Of these 25 injuries, angiographic examination revealed significant vascular damage in 11. In 36 injuries physical findings indicated minor injury, with proximity to major vessels or nonexpanding hematoma being the only indication for arteriography. None of these patients had significant vascular injuries. Physical examination was found to be 100% sensitive in screening for significant vascular injuries. These results indicate that arteriography is unwarranted in stab wounds to the extremities if the only indications are proximity to major vessels or nonexpanding hematoma.
Meniscus Allograft Survival in Patients with Moderate to Severe Unicompartmental Arthritis: A 2‐ to 7‐Year Follow‐up (2006)

Level IV.
Effects-driven chemical fractionation of heavy fuel oil to isolate compounds toxic to trout embryos (2013)

Heavy fuel oil (HFO) spills account for approximately 60% of ship-source oil spills and are up to 50 times more toxic than medium and light crude oils. Heavy fuel oils contain elevated concentrations of polycyclic aromatic hydrocarbons (PAHs) and alkyl-PAHs, known to be toxic to fish; however, little direct characterization of HFO toxicity has been reported. An effects-driven chemical fractionation was conducted on HFO 7102 to separate compounds with similar chemical and physical properties, including toxicity, to isolate the groups of compounds most toxic to trout embryos. After each separation, toxicity tests directed the next phase of fractionation, and gas chromatography-mass spectrometry analysis correlated composition with toxicity, with a focus on PAHs. Low-temperature vacuum distillation permitted the separation of HFO into 3 fractions based on boiling point ranges. The most toxic of these fractions underwent wax precipitation to remove long-chain n-alkanes. The remaining PAH-rich extract was further separated using open column chromatography, which provided distinct fractions that were grouped according to increasing aromatic ring count. The most toxic of these fractions was richest in PAHs and alkyl-PAHs. The results of the present study were consistent with previous crude oil studies that identified PAH-rich fractions as the most toxic.
Retrieval of Elastic Constants of Liquid Crystals Using Physics-Informed Neural Network (2022)

A novel approach to retrieve the elastic constants of a nematic liquid crystal based on physics-informed deep neural network is proposed.
Evaluation of warm mix asphalt performance incorporating high RAP content (2016)

Using reclaimed asphalt pavement (RAP) increases the sustainability benefits and can enhance the performance of warm mix asphalt (WMA) compared to traditional hot mix asphalt (HMA). However, the RAP content is generally limited in WMA because adding high RAP content may reduce the performance of WMA. In this paper, the authors studied the possibility of incorporating high RAP content from 25 to 70% by mass of WMA by using Evotherm as an additive. Laboratory performance of WMA–RAP mixtures was characterized and compared to a control HMA in terms of moisture susceptibility, rutting resistance, and fatigue characterization. Test results showed that Evotherm greatly improved the moisture resistance of WMA–RAP mixtures compared to HMA. Increasing RAP content made WMA–RAP mixtures stiffer and enhanced the rutting resistance, but decreased the fatigue resistance of the mixtures. Therefore, the maximum RAP content needs to be determined to ensure balance between the fatigue and rutting characteristics of asphalt mixtures.
The Angular Diameters of 32 Stars (1974)

The complete results of the observational programme on single stars carried out with the stellar intensity interferometer at Narrabri are presented. The measurements are analysed to yield the angular diameters of 32 stars in the spectral range O5f to F8. Information is also presented on nine multiple stars.
Neutron vibrational spectroscopic evidence for short H∙∙∙H contacts in the RNiInH1.4; 1.6 (R = Ce, La) metal hydride (2021)

Intermetallic metal hydrides are critical materials for hydrogen storage applications, however, metal hydrides with greater storage capacities are still needed. Within metal hydrides, the volumetric storage capacities are limited by the number of hydrogen-accommodating interstitial sites which can be simultaneously occupied given a minimum hydride nearest-neighbor distance of ~2.1 A, according to the Switendick-Westlake criterion. To date, violations of this criterion are rare. Perhaps the most well studied compounds violating this criterion are the RNiInHx compounds (R = Ce, La, Nd). Previous neutron diffraction studies on the deuterated species revealed the presence of Ni-D∙∙∙D-Ni-D∙∙∙D-Ni chains with anomalously close D∙∙∙D contacts of ~1.6 A. Yet there are no neutron vibrational spectroscopic investigations reported for these atypical hydrides. Here we use neutron vibrational spectroscopy (NVS) measurements to probe the hydrogen dynamics in LaNiInHx (x = 0.67, 1.6) and CeNiInH<sub>1.4</sub>. For x > 0.67, the presence of close H...H contacts yields two related features in the vibrational spectrum centered near ~90 meV corresponding to the oscillations of paired H atoms simultaneously occupying neighboring R<sub>3</sub>Ni tetrahedra. Notably, these features are energetically distinct from comparable vibrational motions for "unpaired" H atoms when x = 0.67. To compare, we also present powder neutron diffraction and NVS measurements for the newly characterized, chemically similar Sn compounds CeNiSnH, CeNiSnH<sub>2</sub>, and CeNiSnD<sub>2</sub>. These compounds also contain R<sub>3</sub>Ni tetrahedra, however, the H-occupied tetrahedra are well separated from each other with the closest H∙∙∙H distances exceeding 2.1 A, and the Switendick-Westlake criterion is not violated. Consequently, the spectral signature of the close H∙∙∙H contacts is absent in these hydrides.
Binaural phase masking experiments in stereo audio (2002)

Researchers have established that in binaural hearing the smallest detectable angular separation between two sources, commonly referred to as the minimal audible angle (MAA), for a pair of sources on the horizontal plane depends on the frequency of the emitted pure tone and the azimuth angular separation between the sources. One interesting way is to view the sources’ angular perturbation within the MAA limits as noise in the phase domain, and the listener inability to detect this perturbation as the result of a masking process. The present discussion focuses on experimental procedures for examining the perception of MAA and the corresponding interaural phase difference (IPD) when complex sound sources are located in the most sensitive region, which is directly in front of the observer (both azimuth and elevation angles at 0° degrees). Sound stimuli were viewed as the linear combination of pure tones, as provided by Fourier analysis. Results indicate that masking is achieved when the IPD is disturbed within a threshold limit corresponding to the MAA for pure tone sources. Listening tests using stereo audio further validated our observations. [Work supported by Watermark Technologies.]
Aggregate Morphology Affecting Strength and Permanent Deformation Behavior of Unbound Aggregate Materials (2008)

This paper presents findings of a research study focused on investigating influences of coarse aggregate morphologies on the strength and permanent deformation behavior of unbound aggregate materials. Angularity and surface texture properties of six different types of aggregates were evaluated using two shape indices, angularity index (AI) and surface texture index (ST), based on image analysis. Twenty-one unbound aggregate blends having the same gradation and voids content but different crushed percentages were prepared by mixing the imaging evaluated aggregates and tested using triaxial tests for strength and permanent deformation. The laboratory permanent strain—load application (εp–N) curves evaluated using a phenomenological power model showed the A and b parameters to be heavily dependent on applied stress levels. Aggregate blends with higher AI and ST indices were consistently associated with lower magnitudes of A and b. The angularity property was found to contribute mainly to the strength and stability of aggregate structure through confinement by bulk stress, whereas the surface texture property tended to mitigate the dilation effects through increasing friction between individual aggregate particles.
The Development of a Remote Control System for a Humanoid Robot-The Application of a Humanoid Robot for driving of Industrial Vehicles- (2004)

A human operator can operate a robot intentionally using remote control devices. Therefore, the remote control system has the advantages that the robot can work according to the circumstances. We applied it to tele-operation of a humanoid robot that drives industrial vehicles. We have developed remote control devices that can be transported easily near the robot and remote control methods to operate the whole body of the robot, which consist of supervisory control method and master-slave control method and the operator select them suitable for the situation. For the evaluation, the tele-operated humanoid robot: HRP-1S could succeed in driving a rift truck in a standing posture and driving a backhoe in a sitting posture.
Flue gas scrubbing process for sulfur dioxide and particulate emissions preceding CO2 absorption (1987)

Abstract This article describes a 2‐stage scrubbing process which utilizes sodium hydroxide or sodium carbonate as the neutralizing chemical for sulfur dioxide and sulfur trioxide emissions to remove contaminants from gas streams preceding CO 2 absorption processes. Amine absorption processes are adversely affected by sulfur dioxide in the gas stream, and it is desirable to reduce sulfur dioxide concentrations to less than 5 ppm (vol). Conventional flue gas desulfurization processes do not achieve outlet concentrations at this level. With appropriate controls on pH, ionic strength, and liquid recirculation rates, the sodium alkalies can achieve these outlet concentrations. When concentrations of sulfur dioxide absorbed become sufficiently large to make the economics of a simple throw‐away process uneconomical, the waste solutions can be regenerated in the double‐alkali process by reacting them externally from the scrubbing system with calcium compounds. This process is also described. Particular emphasis is placed on process design for reliability. Materials of construction, process controls, and process chemistry are discussed.
Effect of photoenhanced minority carriers in metal-oxide-semiconductor capacitor studied by scanning capacitance microscopy (2000)

A scanning capacitance microscope was used to study the photoenhanced minority-carrier contribution to the capacitance of the metal-oxide-semiconductor (MOS) capacitor at high frequencies. When a light is induced over the semiconductor surface, electron-hole pairs are generated and recombined. This steady-state generation-recombination process yields the temporary source of minority carriers, and the inversion layer underneath the oxide layer can respond to very fast-varying ac bias. We measured the differential capacitance (dC/dV) of the MOS capacitor under various light intensities, and observed a peak at the inversion region where the amplitude increased as the irradiation intensity increased. By integrating dC/dV with respect to V, we obtained C–V curves in which the capacitance of the depletion region recovered its value up to that of the accumulation region as the light intensity increased. We also observed that the C–V curves shifted in one direction under irradiation which we believe is due to the surface photovoltaic effect.
Combining In-Situ Transmission Electron Microscopy and Infrared Spectroscopy for Understanding Dynamic and Atomic-Scale Features of Supported Metal Catalysts (2018)

The elucidation of structure–property relationships for supported metal catalysts requires atomic-scale descriptions and quantitative measurements of the relative population of various exposed active sites under reaction conditions. The requirement of describing catalyst structures under reaction conditions stems from the potential physical and chemical reconstruction that can be induced by changes in environment. Here we highlight our recent work, where catalyst characterization via a combination of in-situ transmission electron microscopy and infrared spectroscopy is used to provide sample-averaged, site-specific atomic level information on supported metal catalysts under reaction conditions. We show two illustrative examples using different reaction systems: the oxidation of CO over supported Pt and the reduction of CO₂ over supported Rh. Using these examples we demonstrate differentiation of the catalytic reactivity of small supported metal clusters from isolated atoms and interrogate the catalytic consequences of structural transformations such as adsorbate-induced surface reconstruction of metal particles and adsorbate-mediated metal particle encapsulation by oxide supports. Insights gained from these techniques help elucidate structure–property relationships for these reactions including structure sensitivity and dynamic reactivity changes. We expect that this combination of characterization techniques will be generally useful for understanding structurally dynamic catalytic systems with atomic resolution.
High RF power transistor with laterally modulation-doped channel and self-aligned silicide in 45nm node CMOS technology (2008)

A novel high RF power MOSFET was developed to integrate a high-power amplifier into 45 nm node CMOS technology. A self-aligned silicide and laterally modulation-doped channel attained the lowest on-resistance of 1.7 Omega-mm with a high breakdown voltage of more than 10 V and successfully achieved the highest output power density of 0.6 W/mm at the maximum power-added efficiency ever reported among CMOS high breakdown voltage transistors. The reduced gate resistance led to a high frequency characteristic of 43 GHz f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">max</sub> . We also confirmed that the optimized profile of a gate-overlapped lightly doped drain provides sufficient HC and TDDB reliabilities with a gate oxide as thin as a 3.3 V I/O transistor. These results indicate that a single-chip CMOS transceiver with a high-power amplifier can be produced in advanced CMOS fabs.
A statistical methodology as applied to a 256 Mbit DRAM pass transistor design (1996)

We present a novel design for manufacturing (DFM) methodology that has been applied to the design of a pass transistor for 256 Mbit DRAM. The design inputs that include gate oxide thickness, which limits the booted wordline voltage, the threshold voltage adjust implant, and the substrate bias voltage, for different channel lengths, are optimized to meet the constraints on performance, reliability, and robustness against manufacturing variations. The problems associated with applying conventional DFM techniques are discussed and a new methodology based on "margins" is presented. The results pertaining to the optimized DRAM pass transistor design for a power supply voltage V/sub cc/=2.5 V are presented,.
Polio elimination in India thru' PPI. (1996)

Smallpox has been eradicated through the administration of vaccines. Polio could be the next vaccine-preventable disease to be eradicated. The year 2000 has been set for the global eradication of polio. The UNICEF Progress of Nations 1996 reports that more than 80% of the world's children are being immunized against the polio virus, and the annual number of cases has been reduced from 400,000 in 1980 to 90,000 in the mid 1990s. The fixed day, fixed site core strategy of the immunization program has helped to establish a regular contact between the community and the service provider. In this approach, the facility, date, and time of the immunization session in each area is fixed and widely publicized through wall paintings, display boards, pamphlets, and word of mouth. Pulse Polio Immunization (PPI) has met with considerable success in both its implementation and social mobilization. Immunization coverage levels are low in some Indian states, especially for female children, and also in some rural areas.
Mise en place d'un projet de recherche ANR Surfing. (Starter SURFace against INFlammation of the Gut) (2011)

absent
Ion Mass Spectrometer for Sporadic-E Rocket Experiments (2000)

NASA grant NAG5-5086 provided funding for the William B. Hanson Center for Space Sciences at the University of Texas at Dallas (UTD) to design, fabricate, calibrate, and ultimately fly two ion mass spectrometer instruments on a pair of sounding rocket payloads. Drs. R.A. Heelis and G.D. Earle from UTD were co-investigators on the project. The principal investigator for both rocket experiments was Dr. Robert Pfaff of the Goddard Space Flight Center. The overall project title was Rocket/Radar Investigation of Lower Ionospheric Electrodynamics Associated with Intense Mid-Latitude Sporadic-E Layers. This report describes the overall objectives of the project, summarizes the instrument design and flight experiment details, and presents representative data obtained during the flights.
Ad‐CoopPositioning System (ACPS): positioning for cooperative users in hybrid cellularad‐hocnetworks (2007)

Abstract In this paper, we propose an innovative solution for positioning determination in fourth generation (4G) wireless networks by introducing the Ad‐Coop Positioning System (ACPS). The ACPS is supported by a hybrid cellular ad‐hoc architecture, where the cellular network has a centralised control over the ad‐hoc connections among pairs of mobiles. Specifically, peer‐to‐peer (P2P) communications are exploited in a mesh fashion within cellular‐established clusters for cooperation‐aided localisation purposes (from that, the word ad‐coop is derived). The major contribution of this work is the design of the data fusion method for the ACPS which appropriately combines and weights the long‐ and short‐range location information in a non‐linear least square (NLLS) minimisation procedure. The numerical results shown in the paper demonstrate that the ACPS enhances the location estimation accuracy with respect to conventional hybrid positioning techniques in cellular networks. Copyright © 2007 John Wiley &amp; Sons, Ltd.
Surface emitting ring quantum cascade lasers for chemical sensing (2017)

We review recent advances in chemical sensing applications based on surface emitting ring quantum cascade lasers (QCLs). Such lasers can be implemented in monolithically integrated on-chip laser/detector devices forming compact gas sensors, which are based on direct absorption spectroscopy according to the Beer–Lambert law. Furthermore, we present experimental results on radio frequency modulation up to 150 MHz of surface emitting ring QCLs. This technique provides detailed insight into the modulation characteristics of such lasers. The gained knowledge facilitates the utilization of ring QCLs in combination with spectroscopic techniques, such as heterodyne phase-sensitive dispersion spectroscopy for gas detection and analysis.
Springer Series in Surface Sciences, Vol. 32:  Scanning Tunneling Microscopy and Its Applications By Chunli Bai (The Chinese Academy of Sciences). Springer:  New York. 1995. xii + 331 pp. ISBN 3-540-59346-2. $89.50. (1996)

ADVERTISEMENT RETURN TO ISSUEPREVBook ReviewNEXTSpringer Series in Surface Sciences, Vol. 32: Scanning Tunneling Microscopy and Its Applications By Chunli Bai (The Chinese Academy of Sciences). Springer: New York. 1995. xii + 331 pp. ISBN 3-540-59346-2. $89.50.Dawn BonnellView Author Information The University of PennsylvaniaCite this: J. Am. Chem. Soc. 1996, 118, 45, 11339–11340Publication Date (Web):November 13, 1996Publication History Published online13 November 1996Published inissue 13 November 1996https://pubs.acs.org/doi/10.1021/ja9655303https://doi.org/10.1021/ja9655303book-reviewACS PublicationsCopyright © 1996 American Chemical SocietyRequest reuse permissionsArticle Views135Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Adsorption,Metals,Microscopy,Scanning probe microscopy,Scanning tunneling microscopy Get e-Alerts
INVESTIGATING DYNAMICS OF AGE-ASSOCIATED TRANSCRIPTIONAL NETWORKS WITH INTERVENTIONS TARGETING AGING (2019)

Abstract Biological aging is characterized by a progressive decline in physiological function from molecular to organismal levels, manifesting through adaptive transcriptional networks. We present an overview of the complex regulation of transcriptional networks in species- and tissue-specific aging. We aimed to: 1) capture the age-associated changes in gene-gene connectivity, and 2) evaluate the effect of two interventions targeting biological aging (metformin, acarbose) on the regulation of gene networks. Aim 1) Using RNA-Seq we modeled co-expression networks and identified differentially co-expressed gene-pairs between young, middle-aged and older-aged groups. Aim 2) Using short-term clinical studies in older humans (metformin: MILES-trial; acarbose: SAIL-trial), and complementary mouse studies, we revealed the genes and novel pathways underlying the drugs’ effects on biological aging in muscle and adipose. Importantly, these interventions shifted transcripts to a more youthful expression. Overall, we provide evidence of age-associated gene-network topology changes and identify upstream transcriptional factors affected by age-targeting drugs.
Synchronous data flow (1987)

Data flow is a natural paradigm for describing DSP applications for concurrent implementation on parallel hardware. Data flow programs for signal processing are directed graphs where each node represents a function and each arc represents a signal path. Synchronous data flow (SDF) is a special case of data flow (either atomic or large grain) in which the number of data samples produced or consumed by each node on each invocation is specified a priori. Nodes can be scheduled statically (at compile time) onto single or parallel programmable processors so the run-time overhead usually associated with data flow evaporates. Multiple sample rates within the same system are easily and naturally handled. Conditions for correctness of SDF graph are explained and scheduling algorithms are described for homogeneous parallel processors sharing memory. A preliminary SDF software system for automatically generating assembly language code for DSP microcomputers is described. Two new efficiency techniques are introduced, static buffering and an extension to SDF to efficiently implement conditionals.