gebhart/patrepeval huggingface dataset:
Three-Dimensional Angiography-Guided Percutaneous Transluminal Angioplasty for Distal Aorta and Bi-Iliac Chronic Total Occlusion (2013)

Percutaneous recanalization of chronic total occlusions (CTOs) in peripheral arteries, especially TASC D classification including the distal aorta and both iliac arteries is still technically challenging. The conventional technique using standard guidewires and catheters guided by computed tomography and angiography can achieve a limited initial success, depending on lesion characteristics and operator's experience. A special imaging technique using 3-dimensional rotational angiography and spatio-temporal reconstruction with endoview for a better examination of the proximal stump, exact obstruction location, and distal stump direction in a stumpless lesion can be indispensable for successful intervention. We report a successful revascularization case of stumpless distal aorta and bi-iliac CTO guided by this specialized imaging technique.
The state-variable approach to network analysis (1965)

The universality of the state-variable approach to network analysis is demonstrated in general discussions and specific examples. The method of formulation of the state equations for an arbitrary lumped, linear, finite, reciprocal, passive, time-invariant network is presented fully, while the relaxation of these restrictions is indicated in detail; i.e., the state-variable characterization of active, nonreciprocal, time-variable, and nonlinear networks is discussed. Finally, there is a brief guide of the current research where the state-variable analysis is brought to bear upon certain qualitative aspects of classical and nonclassical network behavior.
Preparation of low‐protein natural rubber latex: Effect of polyethylene glycol (2009)

Abstract Low‐protein content natural rubber latex was produced by using a nonionic surfactant‐polyethylene glycol (PEG). Extractable protein content of natural rubber latex was found to decrease with PEG treatment and reduction increased with increase in the molecular weight of PEG. The low‐protein latex samples were characterized by tensile testing, Fourier transform infrared and thermogravimetric analysis. The results have shown 35% reduction in the extractable protein content, without any compromise on the mechanical properties of the latex; however, thermal stability of low‐protein latex was found to be reduced marginally with PEG treatment. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
TREC 2006 video retrieval evaluation (slides) (2006)

TRECVID 2006 2 Promote progress in contentbased retrieval from large amounts of digital video - combine multiple errorful sources of evidence achieve greater effectiveness, speed, usability Model an analyst interested in finding video of certain people, things, places, events, and combinations thereof work on what video is "of" rather than what it is "about" similar to needs of commercial video producers searching an archive for video to reuse rather than reshoot Goals 13.Nov 2006 TRECVID 2006 3 Focus on relatively highlevel functionality -near that of an enduser application like interactive search Confront systems with unfiltered data and realistic queries Measure against human abilities Supplement with focus on supporting automatic components Automatic search, Highlevel feature detection Shot boundary determination Integrate and profit from advances in lowlevel functionality, more narrowly tested face recognition, text extraction, object recognition, etc Goals 13.
Genomic factors related to tissue tropism in Chlamydia pneumoniae infection (2015)

Chlamydia pneumoniae (Cpn) are obligate intracellular bacteria that cause acute infections of the upper and lower respiratory tract and have been implicated in chronic inflammatory diseases. Although of significant clinical relevance, complete genome sequences of only four clinical Cpn strains have been obtained. All of them were isolated from the respiratory tract and shared more than 99% sequence identity. Here we investigate genetic differences on the whole-genome level that are related to Cpn tissue tropism and pathogenicity. We have sequenced the genomes of 18 clinical isolates from different anatomical sites (e.g. lung, blood, coronary arteries) of diseased patients, and one animal isolate. In total 1,363 SNP loci and 184 InDels have been identified in the genomes of all clinical Cpn isolates. These are distributed throughout the whole chlamydial genome and enriched in highly variable regions. The genomes show clear evidence of recombination in at least one potential region but no phage insertions. The tyrP gene was always encoded as single copy in all vascular isolates. Phylogenetic reconstruction revealed distinct evolutionary lineages containing primarily non-respiratory Cpn isolates. In one of these, clinical isolates from coronary arteries and blood monocytes were closely grouped together. They could be distinguished from all other isolates by characteristic nsSNPs in genes involved in RB to EB transition, inclusion membrane formation, bacterial stress response and metabolism. This study substantially expands the genomic data of Cpn and elucidates its evolutionary history. The translation of the observed Cpn genetic differences into biological functions and the prediction of novel pathogen-oriented diagnostic strategies have to be further explored.
AI-Based Multi-Object Relative State Estimation with Self-Calibration Capabilities (2023)

The capability to extract task specific, semantic information from raw sensory data is a crucial requirement for many applications of mobile robotics. Autonomous inspection of critical infrastructure with Unmanned Aerial Vehicles (UAVs), for example, requires precise navigation relative to the structure that is to be inspected. Recently, Artificial Intelligence (AI)-based methods have been shown to excel at extracting semantic information such as 6 degree-of-freedom (6-DoF) poses of objects from images. In this paper, we propose a method combining a state-of-the-art AI-based pose estimator for objects in camera images with data from an inertial measurement unit (IMU) for 6-DoF multi-object relative state estimation of a mobile robot. The AI-based pose estimator detects multiple objects of interest in camera images along with their relative poses. These measurements are fused with IMU data in a state-of-the-art sensor fusion framework. We illustrate the feasibility of our proposed method with real world experiments for different trajectories and number of arbitrarily placed objects. We show that the results can be reliably reproduced due to the self-calibrating capabilities of our approach.
A prospective study on folate, B12, and pyridoxal 5'-phosphate (B6) and breast cancer. (1999)

To investigate the incidence of breast cancer and prediagnostic serum levels of folate, B12, and pyridoxal 5'-phosphate (B6), we conducted a nested case-control study using resources from the Washington County (Maryland) serum bank. In 1974, 12,450 serum specimens were donated, and in 1989, 14,625 plasma specimens were donated by female residents of Washington County. One hundred ninety-five incident breast cancer cases and 195 controls were matched by age, race, menopausal status at donation, and cohort participation as well as by date of blood donation. In both cohorts and all menopausal subgroups, median B12 concentrations were lower among cases than controls. Differences reached statistical significance only among women who were postmenopausal at donation (1974 cohort, 413 versus 482 pg/ml, P = 0.03; 1989 cohort, 406 versus 452 pg/ml, P = 0.02). Among women postmenopausal at blood donation, observed associations of B12 suggested a threshold effect with increased risk of breast cancer in the lowest one-fifth compared to the higher four-fifths of the control distribution [lowest versus highest fifth: 1974 cohort, matched odds ratio = 4.00 (95% confidence interval = 1.05-15.20); 1989 cohort, matched odds ratio = 2.25 (95% confidence interval = 0.86-5.91)]. We found no evidence for an association between folate, B6, and homocysteine and breast cancer. Findings suggested a threshold effect for serum B12 with an increased risk of breast cancer among postmenopausal women in the lowest one-fifth compared to the higher four-fifths of the control distribution. These results should stimulate further investigations of potentially modifiable risk factors, such as these B-vitamins, for prevention of breast cancer.
Resting potential changes associated with Na-K pump in failing heart muscle (1981)

Microelectrode and single sucrose gap techniques were used to measure transmembrane potentials in normal and failing papillary muscles. Six muscles from control animals and 10 from banded animals were cooled (2-4 degrees C) and subsequently rewarmed to 37 degrees C. Normal muscles demonstrated significantly greater increases in maximum diastolic potential (--Emax) on rewarming than those from failing animals. In muscles subjected to transient periods of rapid stimulation, --Emax depolarized initially on stimulation but eventually plateaued at a depolarized level and then hyperpolarized beyond prestimulation levels. These changes in --Emax were altered in failing muscles. The initial rate of depolarization (delta -- Emax/delta t) on stimulation and the magnitude of this depolarization (delta -- Emax) was decreased at all rates studied. The time necessary to arrive at the plateau (time to delta -- Emax) was significantly lengthened in failing muscles. The hyperpolarization seen on rewarming cooled preparations and the changes in --Emax during stimulation have both been related to an activation of an electrogenic Na-K pump suggesting that this ion-transport system is altered in failing heart muscle. The decrease in delta -- Emax/delta t and delta -- Emax seen in failing muscles indicates that K efflux may be lower or that the volume of confined intercellular spaces is greater in failing heart muscle.
Doping-induced change of optical properties in underdoped cuprate superconductors (1999)

We report on the ab-plane optical reflectance measurements of single crystals of Y-doped Bi2Sr2CaCu2O8+delta and Pr-doped YBa2Cu3O7-delta over a wide frequency range from 80 to 40 000 cm(-1) (10 meV-5 eV) and at temperatures between 20 and :300 K. Y and Pr doping both decrease the hole concentration in the CuO2 planes. This has allowed us to investigate the evolution of ab-plane charge dynamics at doping levels ranging from heavily underdoped to nearly optimally doped. Our results of the low-frequency optical conductivity and spectral weight do not show any features associated with the normal-state pseudogap. Instead, one-component analysis for the optical conductivity shows the low-frequency depression in the scattering rate at T &gt; T-c, signalling entry into the pseudogap state. Alternatively, no clear indications of the normal-state pseudogap are detected in the temperature-dependent zero-frequency free-carrier scattering rate by using two-component analysis. In the superconducting state, there is also no convincing evidence of superconducting gap absorption in all spectra. We find that there is a 'universal correlation' between the numbers of carriers and the transition temperature. This correlation holds whether one considers the number of carriers in the superfluid or the total number of carriers.
Gear sound levels with various tooth contact ratios and forms (1993)

The real noise reduction benefits which may be obtained through the use of one gear tooth form as compared to another is an important design parameter for any geared system, especially for helicopters in which both weight and reliability are very important factors. The design and testing of nine sets of gears which are as identical as possible except for their basic tooth geometry are described. Noise measurements were made at various combinations of load and speed for each gear set so that direct comparisons could be made. The resultant data was analyzed so that valid conclusions could be drawn and interpreted for design use.
Biochemical Characteristics of Chronic Lymphocytic Leukaemia (1978)

Chronic lymphocytic leukaemia (CLL) has a variable clinical course and there is a great need of new prognostic laboratory parameters in this disease. 24 CLL patients were subjected to routine haematological and clinical investigation. The leukaemic cells were analyzed for surface immunoglobulins, complement and sheep red blood cell receptors, Concanavalin A-induced agglutination, cytoplasmic glucocorticoid receptor and for proliferative activity by measurement of tritiated thymidine incorporation. The surface markers studied indicated that all cases were of B-cell origin. Only 5 of 23 patients studied had normal serum immunoglobulin levels. These cases showed a nonprogressive disease. 8 patients had increased infection tendency, all of whom had subnormal IgG levels; 4 of them also had subnormal IgA and IgM and 2 had subnormal IgA levels. 5 out of 6 patients with progressive disease and 3 of 11 with nonprogressive disease had an increased proliferative index, indicating a correlation between this parameter and disease progression. ConA agglutinability was not correlated to disease activity. Cells from 17 of 22 patients showed measurable amounts of glucocorticoid receptor. The 5 patients lacking this receptor had inactive disease.
Recent results in robust adaptive flight control systems (2012)

SUMMARY Adaptive control has been increasingly used in flight control of late, with notable technology transitions to autonomous flight platforms such as Joint Direct Attack Munition (JDAM), X–36 Tailless Fighter Agility Research Aircraft, NASA Generic Transport Mode l (GTM), and Boeing Phantom Ray. Given the need to make these flight systems autonomous, the spotlight, more than ever, is firmly on adaptive control and in particular, robust adaptive control systems. In this paper, we present a few recent results in robust Adaptive Flight Control Systems (AFCS) that showcase the advantages, properties, and performance of AFCS, whose foundations were laid more than 50 years ago. Copyright © 2012 John Wiley &amp; Sons, Ltd.
The use flowing of carbon dioxide gas to displace blood during angioscopy (1989)

Carbon dioxide (CO2) gas is a safe and effective arterial contrastagent that images arteries by displacing blood. The use of CO2 gas to displace blood during angioscopy may improve intraoperative angioscopy and allow percutaneous angioscopy. To study this, 46 angioscopic evaluations in the femoral arteries of four dogs were done without inflow occlusion. The ability of CO2 gas to clear the flowing blood was compared to a high-pressure infusion of saline solution. Carbon dioxide gas successfiflly displaced flowing blood in 20 of 25 evaluations (80%) as compared to three of 21 evaluations (14%) with infusion of saline solution (p < 0.0001). After the CO2 gas infusion was stopped, the image remained clear for 9 --I seconds. When saline was used, the image was clear only as long as the infusion was continued. The quality of clear images for the two media were similar through the eyepiece of the angioscope, but images observed through the motion picture camera had better contrast and depth of field in CO2 gas. The use ofa CO2 gas infusion can clear the field of flowing blood without the risk of volume overloading and potentially allow performance of a successful percutaneous angioscopy. (J VASC SURG 1989;10:313-7.)
Inheritance and linkage relationships of isozyme loci in Brassica oleracea (1983)

This study was conducted to elucidate the inheritance and linkage relationships of variation In phosphoglucomutase (PGM), phosphoglucoisomerase (PGI), leucine aminopeptidase (LAP), alcohol dehydrogenase (ADH), acid phosphatase (APS) and glutamateoxaloacetate transarninase (GOT) banding patterns in Brassica oleracea. Segregating populations were generated by selfing or testcrosslng putatively heterozygous plants. The existence of six loci was demonstrated unequivocally (Adh-2, Aps- 1L, Pgm-1, Pgm-2, Lap-1, and Aps-1), and no tight linkages were identified. The existence of two additional loci, Pgi-2 and Got-3, was strongly implied by comparisons of corresponding sporophyte-game-tophyte phenotypes. Two regions of variable activity (ADH-1 and APS-3L) were tentatively concluded to be intergenic heterodimers.
Link Dimension and Exact Construction of a Graph (2019)

Minimum resolution set and associated metric dimension provide the basis for unique and systematic labeling of nodes of a graph using distances to a set of landmarks. Such a distance vector set, however, may not be unique to the graph and does not allow for its exact construction. The concept of construction set is presented, which facilitates the unique representation of nodes and the graph as well as its exact construction. Link dimension is the minimum number of landmarks in a construction set. Results presented include necessary conditions for a set of landmarks to be a construction set, bounds for link dimension, and guidelines for transforming a resolution set to a construction set.
Interferon γ differentially affects the synthesis of chondroitin/dermatan sulphate and heparan sulphate by human skin fibroblasts (1996)

Interferon gamma (IFN gamma) is often considered to be an antifibrotic cytokine because it inhibits collagen synthesis in fibroblasts. Here we report the effects of recombinant human IFN gamma on sulphated glycosaminoglycan chains produced by normal skin fibroblasts from adult donors. IFN gamma (250 i.u./ml) induced an increase in incorporation of D-[1-3H]glucosamine into glycosaminoglycans, either secreted into the culture medium or associated with the cell layer. The structures of these molecules were analysed by using various cleavage agents (heparinases I and II, heparitinase/chondroitinases ABC and AC/periodate oxidation) followed by size-exclusion and anion-exchange HPLC. No modification was detected in the structure of the heparan sulphate chains. In contrast, the cytokine induced changes in the microcomposition of chondroitin/dermatan sulphate chains. More precisely, we found a decrease in the iduronic acid content, associated with down-regulation of the 4-O-sulphation on the GalNAc residues. In contrast, the 6-O-sulphation on these GalNAc residues was potentiated by the cytokine. These results indicate that IFN gamma is able to modulate not only collagen but also the structure of galactosaminoglycans synthesized by human skin fibroblasts.
A multicenter comparison of dialysis membranes in the treatment of acute renal failure requiring dialysis. (1998)

The mortality of patients with acute renal failure (ARF) remains high, and in several large studies approaches 60%. This mortality is particularly high in patients with ARF who require dialysis and has not changed substantially over several years, despite the introduction of major advances in monitoring and treatment. Increasing prevalence of comorbidities has been suggested as the major factor in this persistently high mortality. This study investigates the potential role of the dialysis membrane on patient outcome in a prospective multicenter study of 153 patients with ARF requiring dialysis. The membrane assignment was made in alternating order and was limited to membranes with low complement activation (Biocompatible [BCM]) and cellulosic, high complement activation (Bioincompatible [BICM]). Both types of membranes were low-flux membranes. Patients were dialyzed with the assigned membrane until recovery, discharge from hospital, or death. The severity of illness of each patient was assessed using the APACHE II score at the time of initiation of dialysis. A logistic regression analysis was used to adjust for the APACHE II score. The results of the study showed a statistically significant difference in survival (57% in patients on BCM, 46% in patients on BICM; P = 0.03) and in recovery of renal function (64% in patients on BICM and 43% in patients on BICM; P = 0.001). These differences were particularly marked in the patients who were nonoliguric (>400 ml/d of urine output) at initiation of the study. In the subset of patients who were nonoliguric at the start of dialysis, a larger fraction (70%) became oliguric after initiating dialysis on a BICM membrane, in contrast to 44% who were initiated on a BCM membrane (P = 0.03). It is concluded that the biocompatibility of the dialysis membrane plays a role in the outcome of patients with ARF, particularly those who are nonoliguric at the time of initiation of dialysis.
A high performance high voltage lateral PNP structure (1983)

An improved high voltage lateral PNP structure is described. Devices built with the structure have H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">FE</inf> and Early voltage as good as quality discrete devices and maintain f <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</inf> greater than 1.5 MHz at 350V. The process is simpler than those previously described for production of complementary vertical devices. Experimental results for a range of profiles and geometries are presented.
Immunogenicity of a contiguous T-B synthetic epitope of the A/PR/8/34 influenza virus (1997)

A contiguously linked T-B synthetic viral epitope (110HA120-150HA159,T-B) was investigated for its potency in inducing humoral and cellular immune responses in vivo. The T-cell epitope 110HA120 corresponds to the site 1 hemagglutinin (HA) of the A/PR/8/34 (PR8) influenza virus and is recognized by CD4 T cells in association with I-Ed class II major histocompatibility complex molecules. The 150HA159 represents a major B-cell epitope of the HA protein. T-B dipeptide emulsified in Freund's complete adjuvant was able to induce strong antiviral antibody titers and a high frequency of specific T-cell precursors after a single inoculation in BALB/c mice. In contrast, immunization under identical conditions with equimolar mixtures of T and B peptides did not elicit antibody titers or a cellular immune response. As indicated by the isotypes of antiviral antibodies, the T-B dipeptide preferentially induced a Th1-like immune response. Challenge with T-B dipeptide, but not with T or B peptide alone, stimulated peptide-specific T memory cells in mice previously primed with PR8 virus or with T-B dipeptide. As a consequence, 71 and 57% of these mice, respectively, survived infection with two 100% lethal doses of PR8 virus. Our results suggest that, inasmuch as contiguity between T- and B-cell epitopes provides enough signaling capacity to trigger the mechanisms of T-B-cell cooperation in vivo, a T-B contiguous epitope may well represent a minimal built-in subunit vaccine. Aside from their potential bioavailability, the T-B contiguous epitopes may also represent attractive tools for investigating the molecular mechanisms of T-B-cell cooperation responsible for antiviral protection.
Serum follicle-stimulating hormone inhibition is a marker for preovulatory oocytes in in-vitro fertilization and embryo transfer (1989)

A retrospective analysis was performed on 64 cycles stimulated with human menopausal gonadotrophin and/or pure follicle-stimulating hormone (FSH) and oestrogen (E2) levels. The increase in serum E2 on the day of HCG administration did not correlate (r = 0.05) with the number of preovulatory oocytes (preovs) or with an increase or decrease in serum FSH (r = 0.31). However, the change in serum FSH showed a significant correlation with the number of preovs (r = -0.95, P = 0.013). The probability of obtaining two or more preovs was relatively greater (1.47x) than that of other IVF patients, when there was a drop in FSH of 5% on the day of human chorionic gonadotrophin administration.