gebhart/patrepeval huggingface dataset:
A case of Chlamydia trachomatis infection in a renal allograft patient. (1998)

We describe a renal allograft patient with a Chlamydia trachomatis infection. A 43 year-old man was diagnosed with end-stage renal disease in 1985 which necessitated the transplantation of a cadaver kidney in 1986. The kidney was rejected two years later. A second transplantation was performed in 1991. At the beginning of 1998 symptoms and signs of chronic renal failure and dysuria set in. Routine microbiological studies were negative. Cell culture on McCoy cell line was positive for an active infection with C. trachomatis--initially 3+, then 2+, 1+ and negative following treatment. The patient was positive on the AMPLICOR CT/NG test (Roche Diagnostic Systems, Branchburg, USA) twice with OD values OVER--above 2 at 450 nm wavelength measured on an ELISA reader. The patient received treatment with azithromycin and doxycycline for 10 days following which the serum creatinine levels fell and the creatinine clearance values improved. Dynamic microbiological follow-up showed disappearance of C. trachomatis as evidenced by the negative PCR test. We conclude that the deterioration of renal function in our patient is complex but the infection with C. trachomatis is part of the complex of the underlying chronic renal failure and immunosuppressive treatment.
Use of 13C in biosynthetic studies. Location of isotope from labelled acetate and formate in the fungal tropolone, sepedonin, by 13C nuclear magnetic resonance spectroscopy (1971)

The 13C labelling patterns in sepedonin (3,6,9-trihydroxy-3-methyl-1,3,4,7-tetrahydrocyclohepta[c]-pyran-7-one) isolated from cultures of Sepedonium chrysospermum fed [1-13C]acetate, [2-13C]acetate, and [13C]formate have been elucidated by 13C nuclear magnetic resonance (13C n.m.r.) spectroscopy.
Growth and Transparency in the Lens, an Epithelial Tissue, Stimulated by Pulses of PDGF (1988)

The rat lens undergoes dramatic growth during early postnatal development. Lens weight increased by a factor of 23 in 26 days. Growth rate per day oscillated between 0 and 87 percent. A new culture system was designed to study the oscillations in growth during development. Lens growth and transparency in vitro required pulsatile delivery of platelet-derived growth factor (PDGF) in HL-1 serum-free medium. Continuous delivery of HL-1 medium with PDGF or pulsatile delivery of HL-1 medium without PDGF resulted in lens opacity and no growth. These results provide direct evidence that PDGF stimulates an epithelial tissue and that oscillations in growth occur during normal development of the rat lens.
Acoustic Emission Monitoring of Wet H2S Cracking of Linepipe Steels: Application to Hydrogen-Induced Cracking and Stress-Oriented Hydrogen-Induced Cracking (2011)

Abstract Acoustic emission (AE) was used for monitoring steel cracking during exposure to wet hydrogen sulfide (H2S) environments. A method for filtering AE data related to hydrogen-induced cracking (HIC) was presented and applied for several case studies. In a series of tests on unstressed sweet service steels, evolution of AE indicated three successive HIC phases. An initial incubation period corresponded to hydrogen entry in the steel, during which no cracking occurred. Then two cracking phases were detected. The first was associated with decohesion of weak steel interphases. The second was identified as crack propagation under high internal hydrogen pressure. Crack propagation decreased and eventually ceased over time. Analysis of AE data was then used to evaluate the extent of HIC after sour exposure. Correlation was found when appropriate data filtering was applied. AE analysis was also applied to sour service steels under an applied load. The first steel exhibited HIC AE signals. Its fracture surface was typical of a stress-oriented hydrogen-induced cracking (SOHIC) mode of failure, in good agreement with AE results. For the second steel, which also failed during the test, no AE related to HIC was detected. Fracture surface was typical of sulfide stress cracking (SSC), also in good agreement with AE findings.
Bilateral Stress Fractures of the Anterior Part of the Tibial Cortex (2000)

BRUKNER, PETER M.B.B.S.†; FANTON, GARY M.D.†; BERGMAN, A. GABRIELLE M.D., PH.D.†; BEAULIEU, CHRIS M.D.†; MATHESON, GORDON O. M.D., PH.D.†, STANFORD, CALIFORNIA Author Information
Online monitoring of urea concentration in dialysate with dual-beam Fourier-transform near-infrared spectroscopy (2004)

The robustness of a dual-beam, optical null, Fourier-transform near-infrared (FTNIR) spectrometer was investigated by means of online, near-infrared measurements and predictions of urea concentrations in spent dialysate during hemodialysis treatment. Simple multivariate calibration using a few factors based on a small number of prepared samples provided stable and accurate predictions over a period of 1 month. The calibration was robust when faced with adjustment of reference cell intensity and did not require a daily measured reference spectrum. The root-mean-square error of prediction of urea was 0.4 mM based on a two-factor partial least-squares regression model.
Integration of a high degree of freedom robotic manipulator on a large unmanned ground vehicle (2010)

The Multi-Agent Tactical Sentry Unmanned Ground Vehicle, developed at Defence R&D Canada - Suffield, has been in service with the Canadian Forces for five years. This tele-operated wheeled vehicle provides a capability for point detection of chemical, biological, radiological, and nuclear agents. Based on user experience, it is obvious that a manipulator capability would greatly enhance the vehicle's utility and increase its mobility in urban terrain. This paper details technical components of this development, and describes a number of trials undertaken to perform tasks with a manipulator arm such as picking up objects, opening vehicle and building doors, recording video, and creating 3D models of the environment. The lessons learned from these trials will guide further development of the technology.
THE RELATION OF THE ERYTHROCYTE SEDIMENTATION REACTION TO THE ABILITY OF FLOCCULATION OF THE PLASMA AND SERUM (1926)

Several tests have been recently advocated for the determination of activity in tuberculosis. The more prominently mentioned are the Frisch and Starlinger,1Gerloczy,2Matefy,3Daranyi,4and erythrocyte sedimentation5reactions. These tests are not specific for tuberculosis and are obtainable in all conditions in which there is an accompanying tissue destruction, their utility being comparable to that of a clinical thermometer. We have had occasion to observe the sedimentation reaction on several hundred tuberculous patients and have been impressed with its usefulness in gaging the toxicity of a tuberculous process. When used in conjunction with other clinical and laboratory means of investigation, the test offers a valuable addition to the study of a patient's progress. The results that have been reported from the use of the other named tests, although not as favorable as those that have been obtained with the sedimentation reaction, nevertheless seem to indicate that the physicochemical structure
Synchrotron IR Spectromicroscopy: Chemistry of Living Cells (2010)

Advanced analytical capabilities of synchrotron IR spectromicroscopy meet the demands of modern biological research for studying molecular reactions in individual living cells. (To listen to a podcast about this article, please go to the Analytical Chemistry multimedia page at pubs.acs.org/page/ancham/audio/index.html.).
A Cell-Culture Exposure System for Millimetric Wavelength Radiation (2001)

We describe the design and construction of waveguide cavity cell-culture exposure system that allows the study of potential biological effects arising from an interaction with low-intensity millimetre wave radiation. Previous reports of millimetre wave induced biological effects have seldom been independently replicated due to confounding experimental factors that have led to uncertainty and controversy with regard to the existence of related phenomena. In order to reduce experimental inaccuracies we have paid particular attention to the design, set-up and calibration of our cell and, in addition, the environment in which it is placed. Furthermore, we have made use of high-accuracy microwave/millimetre test equipment and advanced electromagnetic simulation software to fully characterise the millimetre wave propagation characteristics of the cell over its operational frequency range of 27.5-35GHz. Experimental results and theoretical simulations of the cell millimetre wave characteristics show good agreement and give confidence that our technique can be applied to the entire millimetre wave spectral region.
A Mutant of <i>Arabidopsis</i> Lacking a Chloroplast-Specific Lipid (1985)

In order to investigate the functional significance of membrane lipid unsaturation, we have isolated a series of mutants of Arabidopsis thaliana which are deficient in particular membrane fatty acids. The first of these mutants completely lacks Delta3-trans-hexadecenoate, an acyl group that until now has been thought to play an important role in the structure or function of thylakoid membranes in photosynthetic eukaryotes. The apparent absence of any marked physiological effect of the mutation illustrates the potential of this approach to the analysis of membrane structure and function.
Convergent synthesis of multiporphyrin light-harvesting rods (2008)

The present invention provides a convergent method for the synthesis of light harvesting rods. The rods are oligomers of the formula A.sup.1 (A.sup.b+1).sub.b, wherein b is at least 1, A.sup.1 through A.sup.b+1 are covalently coupled rod segments, and each rod segment A.sup.1 through A.sup.1+b comprises a compound of the formula X.sup.1 (X.sup.m+1).sub.m wherein m is at least 1 and X.sup.1 through X.sup.m+1 are covalently coupled porphyrinic macrocycles. Light harvesting arrays and solar cells containing such light harvesting rods are also described, along with intermediates useful in such methods and rods produced by such methods.
Review of enhanced vapor diffusion in porous media (1998)

Vapor diffusion in porous media in the presence of its own liquid has often been treated similar to gas diffusion. The gas diffusion rate in porous media is much lower than in free space due to the presence of the porous medium and any liquid present. However, enhanced vapor diffusion has also been postulated such that the diffusion rate may approach free-space values. Existing data and models for enhanced vapor diffusion, including those in TOUGH2, are reviewed in this paper.
Backrest Elevation and Pulmonary Artery Pressures (1990)

Obtaining pulmonary artery pressure readings in the traditionally accepted flat, supine position can be uncomfortable for the patient and time consuming for the nurse. This analysis of published research suggests that some patients need not lie flat.
Palladium‐Catalyzed Carbonylative CH Activation of Heteroarenes (2010)

Mehr als eine Carbonylierung: Die ersten carbonylierenden Kreuzkupplungen zur Synthese von Ketonen mithilfe einer C-H-Aktivierung wurden entwickelt. Eine Vielzahl an Heteroarenen, darunter Oxazole und Thiazole, sowie Imidazol wurden bei diesem Verfahren als Kupplungspartner eingesetzt. DBU=1,8-Diazabicyclo[5.4.0]undec-7-en, dppp=1,3-Bisdiphenylphosphanylpropan. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Synthesis and Structure of a New 1,5-Anhydro-hex-2-enitol (1987)

Treatment of methyl 4,6-O-benzylidene-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside with sodium cyanoborohydride/hydrogen chloride gives rise to a very convenient approach of 1,5-anhydro-6-O-benzyl-2,3-dideoxy-D-erythro-hex-2-enitol (2), envisaged to be a precursor for both α-D- and β-L-glycosyl compounds in the pentopyranosyl series. An X-ray analysis revealed 2 to be of space group P2 1 and to adopt an O H 5 -conformation.
Performance test of a gamma/neutron mapper on TRU waste drums (1996)

This article discusses a performance test of a Gamma/Neutron mapper, developed for the digface system and designed to rapidly scan gammaray and neutron radiation fields during the excavation of radioactive waste burial areas.
An adaptive DFE for high data rate applications (2002)

A non-uniform number representation and filter transformation techniques are used to increase the throughput rate of an adaptive transversal DFE for applications such as HIPERLAN. The DFE input data is non-uniformly quantised and represented by a signed power-of-two (SPT) number. Using this number representation, multipliers can be replaced with barrel shifters and adders. The mean quantisation noise power using SPT input data is examined. The delayed least mean square algorithm (DLMS) is used for training the DFE. The delay in the filter coefficient update, together with transformation techniques, results in a DFE structure, realisable as the cascade of a series of modular sections.
NO and NO<sub>2</sub>Emission Ratios Measured from In-Use Commercial Aircraft during Taxi and Takeoff (2004)

In August 2001, the Aerodyne Mobile Laboratory simultaneously measured NO, NO2, and CO2 within 350 m of a taxiway and 550 m of a runway at John F. Kennedy Airport. The meteorological conditions were such that taxi and takeoff plumes from individual aircraft were clearly resolved against background levels. NO and NO2 concentrations were measured with 1 s time resolution using a dual tunable infrared laser differential absorption spectroscopy instrument, utilizing an astigmatic multipass Herriott cell. The CO2 measurements were also obtained at 1 s time resolution using a commercial non-dispersive infrared absorption instrument. Plumes were measured from over 30 individual planes, ranging from turbo props to jumbo jets. NOx emission indices were determined by examining the correlation between NOx (NO + NO2) and CO2 during the plume measurements. Several aircraft tail numbers were unambiguously identified, allowing those specific airframe/engine combinations to be determined. The resulting NOx emission indices from positively identified in-service operating airplanes are compared with the published International Civil Aviation Organization engine certification test database collected on new engines in certification test cells.
Health Screening Dialouges (2013)

Nurses can play an important role in community-based health screenings, which are a practical resource to empower people living with mental and substance use disorders to make positive lifestyle changes. The experiences, struggles, and strengths of screening participants provides insights for nurses to engage people in health and wellness dialogues.
Two New 18‐en‐Oleane Derivatives from Marine Mangrove Plant, Barringtonia Racemosa (2006)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Antimycotic imidazoles. 3. Synthesis and antimycotic properties of 1-[2-(aryloxyalkyl)-2-phenylethyl]-1H-imidazoles (1977)

<p>This paper presents the design and experimental characterization of an ultrasound transceiver. The transceiver includes an on-chip transmitter and a receiver to be used in a symmetric data-link, where each sensor node has limited energy resources and is operated in air or a fluidic environment. The receiver and the transmitter operate from a 0.8V supply and consume 1.18μW and 50μW, respectively, while exchanging data at 1kbps data-rate. The receiver sensitivity is -81.6dBm at a 10<sup>-3</sup> Bit Error Rate (BER) level, which enables an experimentally verified transmission over 3.2m in air and a predicted transmission distance in water in the order of 2km, with a measured energy per bit performance of 51.18 nJ/b.</p>
Voice activity detection using frame-wise model re-estimation method based on Gaussian pruning with weight normalization (2010)

This paper proposes a frame-wise model re-estimation method based on Gaussian pruning with weight normalization for noise robust voice activity detection (VAD). Our previous work, switching Kalman filter-based VAD, sequentially estimates a non-stationary noise Gaussian mixture model (GMM) and constructs GMMs of observed noisy speech signals by composing pre-trained silence and clean GMMs and sequentially estimated noise GMMs. However, the composed models are not optimal, because they do not fully reflect the characteristics of the observed signal. Thus, to ensure the optimality of the composed models, we investigate a method for re-estimating the composed model. Since our VAD method works under the frame-wise sequential processing, there are insufficient re-training data for re-estimation of whole model parameters. To solve this problem, we propose a model re-estimation method that involves the extraction of reliable information using Gaussian pruning with weight normalization. Namely, the proposed method reestimates the model by pruning non-dominant Gaussian distributions in expressing the local characteristics of each frame and by normalizing Gaussian weights of remaining distributions. Index Terms: voice activity detection, switching Kalman filter, Gaussian pruning, Gaussian weight normalization
RNA Trans-Splicing for Genodermatoses (2012)

Spliceosome-mediated RNA trans-splicing (SMaRT) is a tool that facilitates the recombination of two distinct pre-mRNA molecules. Its application for gene therapeutic purposes has been hindered by laborious procedures to identify gene-specific molecules. We have established a screening method for the identification of highly functional RNA trans-splicing molecules based on fluorescence reporters, facilitating the generation of most potent therapeutic molecules for the correction of any gene of interest.
ChemInform Abstract: USE OF POLYMERS AS PROTECTING GROUPS IN ORGANIC SYNTHESIS PART 2, PROTECTION OF PRIMARY ALCOHOL FUNCTIONAL GROUPS (1975)

Abstract Aus einem Styrol‐Divinylbenzol‐Copolymeren (I) entsteht mit Benzoylchlorid/A1uminiumchlorid das polymere Keton (II), das mit Phenylmagnesiumbromid über das Carbinol (IIIa) in das polymere Tritylchlorid (IIIb) übergeht.
Qualified data flow problems (1980)

It is known that not all paths are possible in the run time control flow of many programs. It is also known that data flow analysis cannot restrict attention to exactly those paths that are possible. It is therefore usual for analytic methods to consider all paths. Sharper information can be obtained by considering a recursive set of paths that is large enough to include all possible paths but small enough to exclude many of the impossible ones. This paper presents a simple uniform methodology for sharpening data flow information by considering certain recursive path sets of practical importance. Associated with each control flow arc there is a relation on a finite set Q. The paths that qualify to be considered are (essentially) those for which the composition of the relations encountered is nonempty. For example, Q might be the set of all assignments of values to each of several bit variables used by a program to remember some facts about the past and branch accordingly in the future. Given any data flow problem together with qualifying relations on Q associated with the control flow arcs, we construct a new problem. Considering all paths in the new problem is equivalent to considering only qualifying paths in the old one. Preliminary experiments (with a small set of real programs) indicate that qualified analysis is feasible and substantially more informative than ordinary analysis. The methodology also has a beneficial feedback effect on the delicate task of passing from programs to meaningful data flow analysis problems. Even when all paths qualify, unusually sharp information can be obtained by passing from programs to problems in ways suggested by our theorems.
Dynamically scheduled MPC of nonlinear processes using hinging hyperplane models (1998)

Abstract This article deals with the issues associated with designing scheduled model predictive controllers for nonlinear systems within the multiple‐linear‐model‐based control framework. The issues of model set generation from empirical data and closed‐loop application of the generated model set are considered. A method of hinging hyperplanes is proposed as a way to construct a piecewise linear dynamic model, conducive to dynamic scheduling of linear MFC controllers. The design and implementation of dynamically scheduled MFC using a hinge function model are discussed, as well as its advantages. Alternate MFC formulations considered here require more computation, but utilize the hinge function model as a global model. Simulated examples of isothermal CSTRs and a batch fermenter are also presented to illustrate the proposed methodologies.
Homogeneous Ziegler‐Natta catalysis: Efficiency improvement of vanadium catalyst systems by tributyltin hydride for the ethylene/propylene/diene terpolymerization (1984)

Abstract The effect of tributylin hydride on different vanadium‐based homogeneous catalytic systems for the ethylene/propylene/diene (EPD) terpolymerization was studied. Productivity improvements were always observed. Studied on the composition of the polymerization residues as well as on the interaction between single components of the catalytic system were also carried out. The results are interpreted on the basis of the enhanced oxidation of the vanadium(II) species by radical intermediates resulting from the reaction between tin hydrides and the chlorinated organic activator.
Nonlinear analysis of helix traveling wave tubes (1995)

A time-dependent nonlinear formulation of the interaction in the helix traveling wave tube is presented for a configuration in which an electron beam propagates through a sheath helix surrounded by a conducting wall. In order to describe both the variation in the wave dispersion and in the transverse inhomogeneity of the electromagnetic field with wave number, the field is represented as a superposition of waves in a vacuum sheath helix. An overall explicit sinusoidal variation of the form exp(ikz−iωt) is assumed (where ω denotes the angular frequency corresponding to the wave number k in the vacuum sheath helix), and the polarization and radial variation of each wave is determined by the boundary conditions in a vacuum sheath helix. Thus, while the field is three-dimensional in nature, it is azimuthally symmetric. The propagation of each wave in vacuo as well as the interaction of each wave with the electron beam is included by allowing the amplitudes of the waves to vary in z and t. A dynamical equation for the field amplitudes is derived analogously to Poynting’s equation, and solved in conjunction with the three-dimensional Lorentz force equations for an ensemble of electrons. Numerical examples are presented corresponding to both single- and multiwave interactions.
ChemInform Abstract: Synthesis of Boc‐Protected 4,5‐Methano‐β‐proline. (2014)

Abstract Both cis‐ and trans‐isomers of the title compound are synthesized in 49% total yield.
Acute sarcopenia changes following hospitalization: influence of pre-admission care dependency level (2021)

Dependent older people living at home were at higher risk of deterioration in sarcopenia status following hospitalization. In-depth studies investigating causes and potential interventions of these findings are needed.