gebhart/patrepeval huggingface dataset:
POSITRON EMISSION TOMOGRAPHY FOR THE DETECTION OF CORONARY ARTERY DISEASE IN WOMEN (1994)

Cecil, Michael P.; Klein, J. Larry; Brown, David L.; Underwood, Ronald H.; Gladden, Jeffrey R.; Kemp, Alonzo E; Aldridge, Roy E.; C, William Pilcher; Patterson, Randolph E. Author Information
Construction of a Micropycnometer for Determination of Density and Specific Gravity of Liquids and Solutions (1993)

ADVERTISEMENT RETURN TO ISSUEPREVLab-ExptNEXTConstruction of a Micropycnometer for Determination of Density and Specific Gravity of Liquids and SolutionsMono M. Singh , Zvi Szafran , and Ronald M. Pike Cite this: J. Chem. Educ. 1993, 70, 2, A36Publication Date (Print):February 1, 1993Publication History Received3 August 2009Published online1 February 1993Published inissue 1 February 1993https://doi.org/10.1021/ed070pA36RIGHTS & PERMISSIONSArticle Views189Altmetric-Citations1LEARN 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 InReddit PDF (1 MB) Get e-Alertsclose Get e-Alerts
Aortic aneurysm morphology for planning endovascular procedures. (1997)

Endovascular prosthesis repair of abdominal aortic aneurysms is based upon the development of low-profile devices that can be expediently deployed within the aneurysm, excluding it from intraluminal pressure. Many factors affect the treatment of patients in this manner, including the morphology of the proximal and distal fixation sites, the diameter and disease state of the access vessels, and the ability of the device to conform to the many anatomic variations of aneurysms. In addition, preliminary data suggest there is progressive shrinkage and morphologic change in the configuration of an aneurysm following exclusion, which not only affects the alignment of the device but may also influence its healing and stability. This paper reviews the morphologic parameters of aneurysms relevant to endovascular repair and describes the imaging technologies used to assess these parameters before, during, and after intervention.
Comparing the weak and strong gate‐coupling regimes for nanotube and graphene transistors (2009)

Abstract We present an experimental and theoretical comparison of the weak and strong gate‐coupling regimes that arise for carbon nanotube (CNT) and graphene field‐effect transistors (FETs) in back‐gated and liquid‐gated configuration, respectively. We find that whereas the back‐gate efficiency is suppressed for a liquid‐gated CNT FET, the back gate is still effective in case of a liquid‐gated graphene FET. We calculate the gate‐induced Fermi‐level shifts and induced charge densities. In both strong and weak coupling regimes, nonlinearities occur in the gate dependence of these parameters, which can significantly influence the electronic transport. (© 2009 WILEY‐VCH Verlag GmbH &amp; Co. KGaA, Weinheim)
Antidepressants and, suicide and self-injury: Causal or casual association? (2016)

While some clinical improvements can already be suggested, only the fulfilment of this debate will allow to revise the black-box warnings and to improve the antidepressant therapies.
Reaktionen koordinierter Liganden, XIV. Synthese eines vierzähnigen Phosphor‐Makrocyclus im Palladium(II)‐Templat (1986)

Abstract Die Cyclisierung des disekundären Phosphans HMePCH 2 CH 2 PMeH ( 1 ) mit o ‐Xylylendichlorid im Pd II ‐Templat liefert den Komplex des vierzähnigen makrocyclischen Liganden 7 in hoher Ausbeute als Gemisch dreier Stereoisomerer ( 5a–c ). Umkristallisation aus Methanol liefert das syn‐(RSRS) ‐Isomere in reiner Form ( 5a · CH 3 OH). Nach der Röntgenstrukturanalyse (orthorhombisch, Raumgruppe P 2 1 2 1 2 1 ) liegt im ionogen aufgebauten Komplex [Pd( 7 )Cl] + Cl − . CH 3 OH ein 16‐gliedriges Ringsystem vor, das mit seinen vier P‐Atomen die Basis der quadratisch pyramidalen Ligandenanordnung im Monokation bildet (PdP = 2.302(1), 2.304(1), 2.311(1), 2.306(1), PdCl = 3.107(1)Å). Die beiden siebengliedrigen Chelatringe besitzen Sesselkonformation. Durch Behandeln der Palladiumkomplexe 5a–c mit KCN läßt sich der makrocyclische Ligand vom Templatzentrum ablösen und auf andere Übergangsmetalle übertragen ( 10, 11 ).
Design and implement of rotating scanning photograph platform (2010)

This paper represents a framework of the rotating scanning photograph platform. The photograph platform is used for multi-baseline digital close-range photogrammetry. It can provide a sequence of images with stable overlap angles. This paper describes hardware and software design of the platform. Users can implement a custom photography plan with it. This is a step forward in the automation of close-range photogrammetry.
Genome-wide epigenetic analysis delineates a biologically distinct immature acute leukemia with myeloid/T-lymphoid features (2009)

Acute myeloid leukemia is a heterogeneous disease from the molecular and biologic standpoints, and even patients with a specific gene expression profile may present clinical and molecular heterogeneity. We studied the epigenetic profiles of a cohort of patients who shared a common gene expression profile but differed in that only half of them harbored mutations of the CEBPA locus, whereas the rest presented with silencing of this gene and coexpression of certain T-cell markers. DNA methylation studies revealed that these 2 groups of patients could be readily segregated in an unsupervised fashion based on their DNA methylation profiles alone. Furthermore, CEBPA silencing was associated with the presence of an aberrant DNA hypermethylation signature, which was not present in the CEBPA mutant group. This aberrant hypermethylation occurred more frequently at sites within CpG islands. CEBPA-silenced leukemias also displayed marked hypermethylation compared with normal CD34(+) hematopoietic cells, whereas CEBPA mutant cases showed only mild changes in DNA methylation compared with these normal progenitors. Biologically, CEBPA-silenced leukemias presented with a decreased response to myeloid growth factors in vitro.
Robust and Precise Facial Landmark Detection by Self-Calibrated Pose Attention Network (2021)

Current fully-supervised facial landmark detection methods have progressed rapidly and achieved remarkable performance. However, they still suffer when coping with faces under large poses and heavy occlusions for inaccurate facial shape constraints and insufficient labeled training samples. In this paper, we propose a semi-supervised framework, i.e., a Self-Calibrated Pose Attention Network (SCPAN) to achieve more robust and precise facial landmark detection in challenging scenarios. To be specific, a Boundary-Aware Landmark Intensity (BALI) field is proposed to model more effective facial shape constraints by fusing boundary and landmark intensity field information. Moreover, a Self-Calibrated Pose Attention (SCPA) model is designed to provide a self-learned objective function that enforces intermediate supervision without label information by introducing a self-calibrated mechanism and a pose attention mask. We show that by integrating the BALI fields and SCPA model into a novel self-calibrated pose attention network, more facial prior knowledge can be learned and the detection accuracy and robustness of our method for faces with large poses and heavy occlusions have been improved. The experimental results obtained for challenging benchmark datasets demonstrate that our approach outperforms state-of-the-art methods in the literature.
Burst-Locked Oscillator Avoids Side Lock (1988)

Counting circuit corrects errors when side lock occurs. Digital error-detection-and-correction circuit in color-television oscillator circuit provides synchronization when color-burst frequency drifts outside normal tolerance. Digital side-lock-prevention circuit used in television color-burst phase-lock-loop oscillator provides greater tolerance of off-frequency signals than crystal-controlled oscillators.
The effect of the size distribution on the giant magnetoresistance in magnetic granular films (2004)

Abstract In the present paper, assuming that there is a size distribution described by the log‐normal function for the spherical granules in granular films, we take respectively the critical sizes D 1 ( T ) and D 2 ( T ) as phenomenological parameters at different temperatures distinguishing single‐domain ferromagnetic granules from superparamagnetic granules and from multi‐domain granules. Accordingly, magnetic granules can be divided into three categories: superparamagnetic, single‐domain ferromagnetic and multi‐domain ferromagnetic granules. In view of various contributions to the giant magnetoresistance (GMR) effect, the three kinds of granules are separated into two categories: first ferromagnetic granules ( F 1 , consisting of single‐domain ferromagnetic granules), which play a key role in the GMR effect; and second ferromagnetic granules ( F 2 , including superparamagnetic and multi‐domain granules), which play a secondary role in the GMR effect. We combine the effective medium theory with the two‐channel conducting model to study the GMR effect of granular films in detail. As a result, our calculated results are qualitatively in agreement with experimental data, showing that the theoretical method is essentially applicable for magnetic granular composites. (© 2004 WILEY‐VCH Verlag GmbH &amp; Co. KGaA, Weinheim)
MORPHOLOGICAL SEPARATION OF THE EUGLENOID GENERA TRACHELOMONAS AND STROMBOMONAS (EUGLENOPHYTA) BASED ON LORICA DEVELOPMENT AND POSTERIOR STRIP REDUCTION1 (2005)

Since the separation of the Trachelomonas Ehrenberg subgroup “Saccatae” into a new genus, Strombomonas Deflandre (1930) , there has been some question as to its validity. Deflandre's separation was based entirely on characteristics of the lorica, including the shape of the lorica, the lack of a distinctive collar, possession of a tailpiece, lack of ornamentation, and the ability of Strombomonas species to aggregate particles on the surface of the lorica. Recent molecular analyses indicated that the loricate taxa ( Trachelomonas and Strombomonas ) formed a single monophyletic clade; however, the phylogenetic relationship of Strombomonas to Trachelomonas remains unclear because only two Strombomonas taxa have been sequenced to date. In this study, we evaluated the monophyly of the loricate genera using two sets of morphological characters, lorica development and pellicle strip reduction. Lorica development in Strombomonas occurred from the anterior of the cell to the posterior, forming a shroud over the protoplast. In Trachelomonas , a layer of mucilage was excreted over the entire protoplast, followed by creation of the collar at the anterior end. Taxa from both genera underwent exponential strip reduction at the anterior and posterior poles. In Strombomonas only one reduction was visible in the anterior pole, whereas in most Trachelomonas species two reductions were visible. Likewise, Strombomonas species possessed two whorls of strip reduction in the posterior end compared with a single whorl of strip reduction in Trachelomonas species. These morphological characters support the separation of Trachelomonas and Strombomonas as distinct genera.
Human-Murine Transthyretin Heterotetramers Are Kinetically Stable and Non-amyloidogenic (2007)

The transthyretin amyloidoses appear to be caused by rate-limiting tetramer dissociation and partial monomer unfolding of the human serum protein transthyretin, resulting in aggregation and extracellular deposition of amorphous aggregates and amyloid fibrils. Mice transgenic for few copies of amyloid-prone human transthyretin variants, including the aggressive L55P mutant, failed to develop deposits. Silencing the murine transthyretin gene in the presence of the L55P human gene resulted in enhanced tissue deposition. To test the hypothesis that the murine protein interacted with human transthyretin, preventing the dissociation and partial unfolding required for amyloidogenesis, we produced recombinant murine transthyretin and human/murine transthyretin heterotetramers and compared their structures and biophysical properties to recombinant human transthyretin. We found no significant differences between the crystal structures of murine and human homotetramers. Murine transthyretin is not amyloidogenic because the native homotetramer is kinetically stable under physiologic conditions and cannot dissociate into partially unfolded monomers, the misfolding and aggregation precursor. Heterotetramers composed of murine and human subunits are also kinetically stable. These observations explain the lack of transthyretin deposition in transgenics carrying a low copy number of human transthyretin genes. The incorporation of mouse subunits into tetramers otherwise composed of human amyloid-prone transthyretin subunits imposes kinetic stability, preventing dissociation and subsequent amyloidogenesis.
Aortic Hemodynamics with Accelerated Dual-Venc 4D Flow MRI in Type B Aortic Dissection (2023)

The aim of this study is to investigate the applicability of the dual-venc (DV) 4D flow magnetic resonance imaging (MRI) to quantify the complex flow patterns in type B aortic dissection (TBAD). One GRAPPA-accelerated single-venc (SV) and one compressed-sensing (CS) accelerated DV 4D flow MRI sequences are used to scan all subjects, including twelve chronic TBAD patients and two volunteers. The scans are performed twice for the reproducibility assessment of the scan protocols. Voxelwise quantitative flow parameters including kinetic energy (KE), peak velocity (PV), forward and reverse flows (FF, RF) and stasis are calculated. High-venc (HV) data from the DV acquisition are separately analyzed. The scan time reduction by the CS-accelerated DV 4D flow MRI acquisition is 46.4% compared with the SV acquisition. The DV velocity-to-noise ratio (VNR) is higher compared with HV (<i>p</i> = 0.000). No true lumen (TL) parameter shows a significant difference among the acquisition types (<i>p</i> > 0.05). The false lumen (FL) RF is higher in SV compared with the DV acquisition (<i>p</i> = 0.009). The KE is higher (<i>p</i> = 0.038) and stasis is lower (<i>p</i> = 0.01) in HV compared with SV acquisition. All FL parameters except stasis are higher and stasis is lower in HV compared with DV acquisition (<i>p</i> < 0.05). Positive Pearson correlations among the acquisition types in TL and high agreements between the two scans for all acquisition types are observed except HV RF in the FL, which demonstrates a moderate agreement. The CS-accelerated DV 4D flow MRI may have utility in the clinical daily routine with shortened scan times and improved velocity measurements while providing high VNR in TBAD. The observed hemodynamic flow trends are similar between GRAPPA-accelerated SV and CS-accelerated DV 4D flow MRI acquisitions; however, parameters are more impacted by CS-accelerated HV protocol in FL, which may be secondary to the CS regularization effects.
CI-744 anesthesia for ophthalmological examination and surgery in monkeys. (1975)

CI-744 is a new agent for chemical restraint and surgical anesthesia in animals, consisting of equal parts by weight of the cataleptoid agent tiletamine-HCl and the tranquilizer zolazepam-HCl. We have used it in the intramuscular dose of five to ten milligrams per kilogram to anesthetize 110 cynomolgus and 10 vervet monkeys a total of 1,500 times for various ophthalmological procedures. At these dosages its characteristics of action were rapid onset, thirty of fifty minutes of surgical depth anesthesia during which there was excellent muscular relaxation and an absence of ocular movements, a very gradual emergence, and no adverse after effects. In these monkey species, we judge CI-744 superior to phencyclidine or methohexital as a short-acting general anesthetic for most ophthalmological procedures.
Fast generation of complex modulation video holograms using temporal redundancy compression and hybrid point-source/wave-field approaches (2015)

The hybrid point-source/wave-field method is a newly proposed approach for Computer-Generated Hologram (CGH) calculation, based on the slicing of the scene into several depth layers parallel to the hologram plane. The complex wave scattered by each depth layer is then computed using either a wave-field or a point-source approach according to a threshold criterion on the number of points within the layer. Finally, the complex waves scattered by all the depth layers are summed up in order to obtain the final CGH. Although outperforming both point-source and wave-field methods without producing any visible artifact, this approach has not yet been used for animated holograms, and the possible exploitation of temporal redundancies has not been studied. In this paper, we propose a fast computation of video holograms by taking into account those redundancies. Our algorithm consists of three steps. First, intensity and depth data of the current 3D video frame are extracted and compared with those of the previous frame in order to remove temporally redundant data. Then the CGH pattern for this compressed frame is generated using the hybrid point-source/wave-field approach. The resulting CGH pattern is finally transmitted to the video output and stored in the previous frame buffer. Experimental results reveal that our proposed method is able to produce video holograms at interactive rates without producing any visible artifact.
Total Phenolic and Yellow Pigment Contents and Antioxidant Activities of Durum Wheat Milling Fractions (2017)

The aim of this study was to investigate the distribution of total yellow pigments, total phenolic compounds, and their antioxidant activities in various durum wheat milling fractions. Carotenoid composition of yellow pigment extract was also examined using UPLC. The ABTS radical scavenging activity of the milling fractions decreased in the order of short bran/bran > feed flour > flour/semolina in both total phenolic and total yellow pigment extracts. Yellow pigments extracts from bran, short bran, and feed flour exhibited 5.6-15.4% higher antioxidant activity than those of total phenolic extracts from the corresponding milling fractions. The UPLC results showed a non-carotenoid peak at Rt 0.47 min which was present in fractions of the grain outer layers but absent in semolina and flour. This peak absorbed in the UV range of 271 to 327 nm. These observations suggest that the unknown peak could be composed of phenolic compounds co-extracted in their free form with carotenoids in the polar water-saturated butanol solvent. The compounds in this peak could result in overestimation of carotenoid content and antioxidant activity in bran, short bran and feed flour as the peak contributed to 18.3-26.0% of total carotenoids if it was taken into account.
Geometric Contruction Technic to Localization of a Magnetic Dipole (2001)

International audience
Paget's Disease of Bone (Osteitis Deformans) Amongst the West Malaysians (1972)

Summary Paget's disease of bone is known to be rare amongst the Asians. Three cases with characteristic radiological features are presented to illustrate die existence of this condition in West Malaysia. Their clinical and radiological manifestations are similar to what is usually seen in Caucasians.
In vitro evaluation of the antiviral activity of SP‐303, an euphorbiaceae shrub extract, against a panel of respiratory viruses (1993)

Abstract The antiviral dn cytotoxic activity of SP‐303, a naturally occurring polyphenolic polymer (average M.W. = 2,100 daltons) isolated from a Euphorbiaceae shrub, was evaluated in tissue culture. The compound exhibited selective antiviral activity (ratio IC 50 /EC 50 ≥10) against parainfluenza virus type 1, respiratory syncytial virus, influenza A viruses, and influenza B viruses; marginal selective antiviral activity (IC 50 /EC 50 ratio &gt;2 to &lt;10) against parinfluenza virus type 3; and no selective antiviral activity (IC 50 /EC 50 ratio ≤1) against measles virus or adenovirus type 5. Hemagglutination and other studies suggested that SP‐303 may at least partially inactivate virus by direct interaction with virus or host cell lipid membranes. © Wiley‐Liss, Inc.
Reflective echo tomographic imaging using acoustic beams (2023)

An inspection system includes a plurality of acoustic beamformers, where each of the plurality of acoustic beamformers including a plurality of acoustic transmitter elements. The system also includes at least one controller configured for causing each of the plurality of acoustic beamformers to generate an acoustic beam directed to a point in a volume of interest during a first time. Based on a reflected wave intensity detected at a plurality of acoustic receiver elements, an image of the volume of interest can be generated.
Comparison of Multiscale Imaging Methods for Brain Research (2020)

A major challenge in neuroscience is how to study structural alterations in the brain. Even small changes in synaptic composition could have severe outcomes for body functions. Many neuropathological diseases are attributable to disorganization of particular synaptic proteins. Yet, to detect and comprehensively describe and evaluate such often rather subtle deviations from the normal physiological status in a detailed and quantitative manner is very challenging. Here, we have compared side-by-side several commercially available light microscopes for their suitability in visualizing synaptic components in larger parts of the brain at low resolution, at extended resolution as well as at super-resolution. Microscopic technologies included stereo, widefield, deconvolution, confocal, and super-resolution set-ups. We also analyzed the impact of adaptive optics, a motorized objective correction collar and CUDA graphics card technology on imaging quality and acquisition speed. Our observations evaluate a basic set of techniques, which allow for multi-color brain imaging from centimeter to nanometer scales. The comparative multi-modal strategy we established can be used as a guide for researchers to select the most appropriate light microscopy method in addressing specific questions in brain research, and we also give insights into recent developments such as optical aberration corrections.