gebhart/patrepeval huggingface dataset:
Use of the Navigator Probe after Radiotracer Injection to Identify Nonpalpable Rib Lesions Requiring Surgical Resection (2006)

: Intraoperative localization of NPRL that are positive on Tc-99m HDP bone scanning using the Navigator probe is feasible and was 100% successful in our initial experience. This technique allows a minimally invasive approach, which is beneficial for those patients who do not require further resection.
Perspectives on stereo (1990)

Taking advantage of stereo hardware shouldn't require major software development, but choosing the correct projections and transformations isn't easy. Stereo done incorrectly will not only be ineffective, but probably genuinely uncomfortable for the viewer. This paper discusses the correct way to do stereo perspective projections, and how to implement these in software on a Silicon Graphics Iris Workstation.
Cultural Identities and Resolution of Social Dilemmas (2017)

An experiment is reported for payoff-equivalent public good and common pool games with high caste and low caste West Bengali villagers. Tests are reported for models of unconditional social preferences, models of reciprocity, and cultural identity. Results from the artefactual field experiment indicate that when information about caste is withheld no significant difference is observed in the efficiency of play between the villagers and student subjects at American universities in games with positive and negative externalities. In contrast, making the hereditary class structure salient induces different behavior among villagers. Providing caste information leads to: (i) the lowest level of efficiency when low caste first movers interact with a low caste second mover, and (ii) the highest level of efficiency when high caste first movers interact with a high caste second mover. Cross-caste play generates intermediate levels of efficiency.
Trends and Cardiovascular Co-morbidities of COPD Patients in the Veterans Administration Medical System, 1991–1999 (2005)

Persons with Chronic Obstructive Pulmonary Disease (COPD) are at risk for developing other smoking-related complications, including cardiac and vascular diseases. Information about the prevalence and incidence of these conditions is needed to anticipate their occurrence in clinical research. We conducted a cohort study using longitudinal administrative data to describe the prevalence and incidence of cardiovascular (CV) diseases among COPD patients treated by the Veterans Administration Medical System. The COPD cohort included all persons with a diagnosis of COPD admitted to a Veterans Administration Medical System hospital (N = 70,679) or seen in a outpatient clinic (N = 314,209) in fiscal year 1998. Each COPD patient was matched to a Veteran of the same age and gender who did not have a COPD diagnosis, creating a non-COPD cohort for comparison. Among all hospitalized Veterans, the prevalence of COPD steadily increased from 1991 to 1999, although the total number of Veterans hospitalized during this time period decreased by more than one-third. Among COPD patients hospitalized in 1998, the prevalence of coronary artery disease, congestive heart failure, and atrial fibrillation were very high (33.6%, 24.4%, and 14.3%, respectively) and significantly higher than those seen among the matched non-COPD cohort (27.1%, 13.5%, and 10.4%; p < 0.001). Among COPD outpatients, increased complications were found in every CV disease category with rate ratios that were greater than observed among inpatients. We conclude that CV diseases are remarkably prevalent among Veterans with COPD, and their incidence is likely to increase as the Veteran population ages.
Limited proteolysis of human von Willebrand factor by Staphylococcus aureus V-8 protease: isolation and partial characterization of a platelet-binding domain (1986)

Purified human von Willebrand factor (vWF) was digested with Staphylococcus aureus V-8 protease, and specific domains interacting with platelets were isolated and characterized. Amino acid sequence analysis and sodium dodecyl sulfate gel electrophoresis demonstrated that the digestion proceeded primarily by a single cleavage of the native 270K subunit between an internal Glu-Glu peptide bond. This produced an integral stepwise degradation of the multimers of vWF with a concomitant accumulation of bands with mobility similar to that of the smaller molecular weight vWF multimers. The immediate precursor of the final products contained equimolar amounts of 270K subunit and of two polypeptides (170K and 110K). The cleavage of the remaining 270K subunit converted vWF into two main fragments (fragments II and III). These fragments were isolated by ion exchange chromatography, characterized, and assayed for platelet binding in the presence of ristocetin. Fragment III is a dimer of 315K composed primarily of two chains of 170K. Amino acid sequence analysis indicated that it originated from the amino-terminal portion of the 270K subunit and contained 11% of the original ristocetin cofactor activity. Also, it binds to platelets at the same specific sites as native vWF and shows a platelet binding pattern similar to that of partially reduced vWF (500K). Fragment II is a dimer of 235K composed of two identical chains of 110K. Amino acid sequence analysis indicated that it originated from the carboxyl-terminal portion of the 270K subunit and lacked ristocetin cofactor activity. Also, it does not bind to platelets or inhibit the binding of 125I-vWF in the presence of ristocetin.(ABSTRACT TRUNCATED AT 250 WORDS)
Combined transmission electron microscopy and x-ray study of the microstructure and texture in sputtered Mo films (1994)

The microstructure and texture of thin Mo films sputtered onto the native oxide of Si(100) wafers were investigated with both conventional reflection x-ray pole figures, and transmission electron microscopy and diffraction. Films were grown at two deposition rates (powers), 34 nm/min (1.5 kW) and 67 nm/min (3.9 kW), onto both moving and stationary substrates, under otherwise identical experimental conditions. The microstructure of the Mo films evolved into a zone 2 microstructure within the first 2 μm of growth. The development of both out-of-plane and in-plane textures was found to be influenced by deposition rate and geometry. Films grown at the lower deposition rate exhibited predominantly {110} textures, while films grown at the higher rate exhibited predominantly {110} textures up to a film thickness of ∼0.5 μm and {111} textures above a film thickness of ∼1 μm. Films with the {110} textures developed grains with elongated footprints and faceted surfaces, while films with the {111} textures developed grains with elongated triangular footprints and faceted surfaces. In all of the films deposited onto moving substrates, an alignment of the grains normal to the tangent plane (defined by the substrate normal and the direction of platen rotation) was observed. In all of the films deposited onto stationary substrates, the development of an in-plane texture was suppressed. These results suggest that a combination of geometric, energetic, and kinetic mechanisms are contributing to the evolution of the microstructure and texture in the Mo films.
Mixed Ligand Chelate Extraction of Lanthanides: I. 8-Quinolinol Systems (1980)

Abstract A detailed study of the equilibrium extraction behavior of a series of representative tervalent lanthanide ions, La, Pr, Eu, Ho, and Yb, into chloroform solutions containing either 8-quinol-inol (HQ) alone or mixed with 1,10-phenanthroline (phen), was carried out. The results demonstrated that, except for La which extracted as a simple chelate, LaQ3, the lanthanides extract as self-adduct chelates, LnQ3 · 2HQ, and at higher HQ concentrations, LnQ3 · 3HQ. In the presence of phen, mixed ligand chelates of all the lanthanides but La of the formula LnQ3 · 2HQ · phen are formed. The use of the experimental parameters, pH, concentration of both HQ and phen to optimize the separation of the lanthanides is discussed. It is concluded that chelate extraction systems in which adduct and mixed ligand complexes are formed enhance separation capability.
Infiltration patterns of macrophages and lymphocytes in chronically rejecting rat kidney allografts (1994)

Abstract The migration of circulating leukocytes to sites of inflammation or antigen is based, at least in part, on the activities of adhesion molecules. In the context of organ transplantation, some of these have been shown to be upregulated during acute allograft rejection. As their role during chronic rejection has not been examined, we have used an established rat model to compare sequentially the presence of host cells within the grafts, as defined immunohistologically, with patterns of in vitro leukocyte binding and their dependence upon particular adhesion molecules. Various donor populations of peripheral blood lymphocytes (PBL), lymph node lymphocytes (LNL), and splenic monocytes were interacted with snap-frozen sections of allografted, isografted, and native kidneys at serial intervals up to 24 weeks after transplantation. Monocyte binding in the allografts rose at 8 weeks and peaked at 12 weeks, a period preceding the maximum numbers of macrophages noted immunohistologically in the chronically rejecting grafts at 16 weeks. Lymphocyte binding and infiltration patterns were similar, remaining stable throughout the follow-up period and consistently greater than those noted in isografts. In vitro binding of the monocytes was inhibited by mAbs against ICAM-1, LFA-1, CD18, and MAC-1; MAC-1 did not influence lymphocyte binding, although the other mAbs were effective. We conclude that adhesion molecules are responsible, at least in part, for patterns of cell populations infiltrating chronically rejecting renal allografts.
Technical Note New Minitrephine Makes Lacrimal Canalicular Rehabilitation an Office Procedure (1990)

A new minitrephine, with a stainless steel tube of 0.81-mm outer diameter, 16-mm length, a plastic hub and handle assembly for manual rotation, Luer lock attachment to either standard or specially designed 3-ml syringe with spring-assisted plunger, and an intraluminal stylet--all disposable--has been designed by us principally for opening a distally occluded lacrimal canaliculus prior to stenting with any desired implant. Local anesthesia via a nasociliary nerve block makes this an office procedure. Other potential uses include transscleral globe biopsies of suspected malignancies, intraorbital biopsies, drainage of fluid-filled spaces wherein a beveled needle evacuation might undesirably pierce the far end of the cyst--all with possible ultrasonic monitoring--or the creation of a correctly sized, round, noncollapsible passage for a Molteno valve stenting of the anterior chamber, for intractable glaucoma.
Clinical Decision Making by Experienced and Inexperienced Pediatric Physical Therapists for Children With Diplegic Cerebral Palsy (1996)

Findings are generally consistent with existing clinical decision-making literature and provide important information for physical therapy practice, research, and education.
Optical Parameters for Using Visible-Wavelength Reflectance or Fluorescence Imaging to Detect Bird Excrements in Produce Fields (2019)

Consumption of produce contaminated with pathogens of fecal origin is the most common source of food borne illnesses. Current practice is to visually survey fields for evidence of fecal contamination, and to exclude problematic areas from harvest. Bird excrement is known to contain human pathogens, and is often not detectable in produce fields using current survey methods. The goal of this project was to identify parameters for optical detection of bird excrements to support development of instruments to be used to supplement existing visual surveys. Under daylight ambient conditions, results suggested that reflectance imaging at around 500–530 nm or 610–640 nm could be used to detect excrements from the three bird species tested. Images were acquired using ad hoc camera parameters; however, normalizing intensities for individual images at 525 nm and using a fixed detection threshold allowed detection of 100% of bird excrements with no false positives against the background that consisted of local soil and fresh romaine and spinach leaves. Similar results were obtained using fluorescence imaging. Fluorescent imaging was accomplished in a darkened room using 405-nm illumination. The largest consistent differences in intensity responses between excrements and the brightest non-excrement object in the background matrix occurred at around 550 nm. Results suggested that using reflectance or fluorescence imaging for detection of bird excrements could be a valuable tool for reducing risks of consuming contaminated produce. One possibility would be to incorporate appropriate reflectance imaging capabilities in drones under the control of the individuals currently conducting field surveys.
Glycolysis of triose derivatives by extracts of tumour and of muscle (1938)

IN previous papers [Scharles et al. 1935; 1, 2] it was shown that tumour extracts can produce considerable amounts of lactic acid from hexosephosphates. The behaviour of tumour extracts was found to differ from that of muscle extracts in several features, and it was concluded that ". . . carbohydrate breakdown in the two tissue extracts proceeds along different paths" [1935, 1]. Boyland & Boyland [1935], however, working also with hexosediphosphate arrived at the opposite conclusion, namely that "the rapid breakdown of hexosediphosphate by tumour extracts along the same paths as occur in muscle extracts gives support to the idea that the mechanisms of lactic acid formation in tumour and muscle are similar "; and they have maintained this position in subsequent publications [Boyland et al. 1937; Boyland & Boyland, 1938].
Optical Forces in Scanning Probe Microscopy (2011)

We demonstrate that the mechanical action of light can be detected by a scanning probe microscope. The conservative and nonconservative electromagnetic forces can be directly measured and they affect the perceived topography.
Memory Effect of Self‐Assembled PS‐<i>b</i>‐PEO Block Copolymer Films with Selectively Embedded Functionalized TiO<sub>2</sub> Nanoparticles (2017)

The memory effect in organic thin film transistors is described with a dielectric hybrid material composed of selectively localized charge trapping titania nanoparticles in a polystyrene‐ b ‐polyethyleneoxide (PS‐ b ‐PEO) diblock copolymer film. Upon solvent annealing in toluene atmosphere, the films readily form nanophase‐separated features of PEO cylinders in a matrix of PS. X‐ray reflectivity (XRR) investigations reveal that the TiO 2 particles are selectively distributed in the top half of the hybrid layers. Applied in organic thin film transistor devices with 2‐tridecyl‐[1]benzothieno[3,2‐b][1]benzothiophen (mono‐C 13 ‐BTBT) semiconductor, the hybrid layers induce clockwise drain current hysteresis with promising memory ratio, long‐term stability, and endurance. The occurrence of nonvolatile charge trapping directly relates to the hierarchically assembled nanostructure of the nanoparticles in the block copolymer since reference devices with PS homopolymers blended with TiO 2 are found to be hysteresis free. Morphological characterization of the hybrid dielectric layers by atomic force microscopy and XRR experiments is presented to shed light on the internal electron density distribution. The layers are subsequently tested in capacitor stacks and transistors.
Low Altitude Wind Shear Detection with Doppler Radar (1987)

The feasibility of using the next generation weather radar (NEXRAD) system to detect low-altitude wind shear near airports is investigated. We compare surface-measured horizontal shear with that observed aloft with Doppler radar to determine how the radar-estimated shear above the surface relates to the surface-measured shear. For five Oklahoma gust fronts, the Doppler radar estimate of shear (at heights between 50–600 m) averaged 1.6 times the shear measured at the surface. For none of 43 comparisons was the surface radial velocity difference across the gust front stronger than the radial velocity difference measured by Doppler radar aloft When the five gust fronts passed an instrumented tower a vertical profile through the lowest 440 m of the gust front could be determined. In all cases the wind speed and wind shear increased in the lowest 90 m of the atmosphere. In one case, the 90 m height had the peak wind shear, in all other case the peak wind shear was at a much higher altitude. The Federal Aviation Administration requires that NEXRAD radar coverage have a lowest scan of 60 m above the surface in the airport area (within 20 km of the airport), the strongest shears in the five gust fronts investigated in this study were at the 90 m or higher levels of the tower. Due to surface friction. it is expected that wind speeds and shears in downbursts will also be stronger aloft than at the surface; however, further study is necessary. It is suggested that a combination of Doppler radar data and information gleaned from a Low-Level Wind Shear Alert System (LLWSAS) would allow more accurate wind shear estimates in the terminal area of airports than would be possible with either system by itself.
Envelope amplitude analysis following narrow-band filtering: A technique for ultrasonic tissue characterization (1987)

Ultrasonic waveforms backscattered from tissue simulating phantoms and from normal and cirrhotic human livers in vivo were digitized to a standard dynamic range prior to envelope detection and determination of envelope amplitude distributions. For 11 individual narrow-band Gaussian-shaped filters of -6 dB bandwidth 200 kHz, and of center frequencies from 2 to 4 MHz, envelope amplitude distributions were plotted and mean values of the values distributions computed. Analysis of data was performed for data from a phantom containing only relatively small graphite scatters (less than 170 mu), and a similar phantom to which glass spheres 0.5 mm in diameter had been added homogeneously. For lower center frequency narrow-band filters, significantly more high-amplitude occurrences were observed for data from the phantom to which glass spheres had been added. Higher center frequency narrow-band filters gave significantly more high-amplitude occurrences for the phantom containing only small scatters. Similar data analysis was performed for in vivo human liver data from ten normal subjects and five patients with known cirrhosis of the liver. For the cirrhotic and normal livers, data analysis using narrow-band filters of relatively low center frequency resulted in more high- amplitude occurrences for cirrhotic, compared to normal liver; the converse was true for narrow-band filtration at relatively high center frequencies. Determination of mean amplitude following narrow-band filtration with a filter centered at 3.4 MHz was found to be quite repeatable for the normal and cirrhotic liver data; analysis of variance showed the measurement was 94.1% a function of the subject examined, and 5.9% related to the data acquisition session.(ABSTRACT TRUNCATED AT 250 WORDS)
Physically Admissible Impedance Models for Time-Domain Computations of Outdoor Sound Propagation (2014)

International audience
TanDEM-X Mission and DEM Accuracy (2009)

TanDEM-X (TerraSAR-X Add-on for Digital Elevation Measurements) is currently implemented as a national Earth observation mission by the German Aerospace (DLR) and EADS Astrium GmbH. This first bistatic satellite synthetic aperture radar (SAR) mission opens a new era in spaceborne
radar remote sensing. The tandem configuration is formed by
flying TanDEM-X and TerraSAR-X in a closely controlled helix
formation. The primary mission goal is the derivation of a high-precision global Digital Elevation Model (DEM) with 12 m
resolution, 10 m absolute height accuracy and 2 m relative height accuracy. This paper provides an overview of the mission with main focus on the data acquisition concept for the
interferometric radar data and the derivation of the specified
accurate global DEM.
ChemInform Abstract: Bioactive Marine Metabolites. Part 59. Cyclostellettamines A‐F, Pyridine Alkaloids Which Inhibit Binding of Methyl Quinuclidinyl Benzilate (QNB) to Muscarinic Acetylcholine Receptors, from the Marine Sponge, Stelletta maxima. (1994)

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.
Vibrational-Energy Transmission in a Three-Element Structure (1965)

The transmission of vibrational energy in a planar, three-element plate/beam/plate structure is analyzed. Theoretical predictions of average energy (or acceleration) ratios in frequency bands are developed, using concepts of energy flow in multimodal systems that have been described previously. Interstructure coupling parameters are calculated for torsional and flexural motions of the central connecting member (beam), and the energy transfer contributed by each type of motion is also calculated. It is found that the energy transfer is dominated by beam flexure in the lower-frequency bands, but torsional motion contributes significantly at the higher frequencies. Experimental analysis of a model of the structure is consistent with the theoretical predictions.
Sensory Cues, Visualization and Physics Learning (2009)

Abstract Bodily manipulations, such as juggling, suggest a well‐synchronized physical interaction as if the person were a physics expert. The juggler uses “knowledge” that is rooted in bodily experience, to interact with the environment. Such enacted bodily knowledge is powerful, efficient, predictive, and relates to sensory perception of the dynamics of objects. This paper describes results of an empirical study in physics learning, aimed at exploring links between sensory input, visual representations, and corresponding conceptual learning in physics. The central finding is that through sensory interaction (e.g., touch, vision) with a physical system in the physics laboratory, learners spontaneously generate a novel reference‐system of pictorial representations, typical to the situation explored. Results show that in collaborative hands‐on problem‐solving in physics, a pictorial referential communication system is generated. Elements of the pictorial communication system were found to be one of three: photographic, metaphoric, or symbolic. The constituents of the communication system are socially shared, hence valid, are used repeatedly when similar experience happens, therefore consistent. Thus visual‐spatial representations of non‐explicit knowledge turn into pictorial representations for communication. It is powerful because it allows access and retrieval of tacit knowledge, inaccessible by symbolic interaction. Keywords: Physics educationConceptual developmentSensory memoriesSensory interactionRepresentation Notes 1. The classic examples are acquisition of language and the process of socialization. Individuals come to speak their natural language and become inculcated with their society’s norms and mores, but without conscious knowledge of the underlying principles that guide their behavior (The Penguin Dictionary of Psychology, 2001).