gebhart/patrepeval huggingface dataset:
New Chiral-Photochromic Dopant with Variable Helical Twisting Power and its use in Photosensitive Cholesteric Materials (2001)

Abstract A new photosensitive chiral dopant based on cinnamic acid and isosorbide was synthesised. UV light action leads to E-Z photoisomerization of the dopant about C=C double bond of cinnamoyl fragment. Mixtures of the dopant with nematic and cholestric polymers were studied. It was shown, that planarly-oriented films of mixtures possess a selective light reflection in ultraviolet, visible and infrared regions of spectrum depending on the dopant concentration. The helical twisting power of the chiral dopant was calculated. UV light action on mixture films leads to a shift of selective light reflection peak to the long wavelength region of spectrum, which is explained by photoisomerization and decrease of the helical twisting power of the dopant. Kinetics of the process of photoinduced untwisting of the cholesteric helix was studied. Advantages of the use of the synthesised dopant and of mixtures based on it were demonstrated in comparison to earlier studied chiral-photochromic materials for optical data recording and storage. Key Words: photosensitive chiral dopantchiral-photochromic cholesteric materials
Strategies to Enhance ZnO Nanogenerator Performance via\n Thermal-Annealing and Cryo-Cooling (2020)

Piezoelectric capacitive NanoGenerators (NG) based on vertically grown\ncrystalline zinc oxide nanowires (ZnO-NWs) have been fabricated using a\nlow-cost and scalable hydrothermal method on gold-coated silicon substrates,\nwhich served as both a seed layer and a conductive bottom electrode.\nMorphological and structural characterizations demonstrate that the obtained\nZnO NWs are dense, uniformly distributed, vertically well aligned and exhibit\ngood crystal quality. The piezoelectric NG consists of ZnO-NWs grown on a\ngold-coated silicon substrate, parylene-C matrix, titanium/aluminium top\nelectrode and poly(dimethylsiloxane) (PDMS) encapsulating layer. In order to\nenhance the NG performances, which is the main goal of this study, two\ndistinctly different post-growth treatments, namely thermal annealing in\nambient air and cryo-cooling by immersion in liquid nitrogen, are applied and\ntheir effect studied. Achieving the high performance of NG via the combination\nof high-quality NWs growth and subsequent post-growth treatment is presented.\nSuperior global performance of NG has been observed with a post-treatment of\ncryo-cooling for an optimum duration compared to the thermal annealing\nsignifies the simplicity and novelty of the work. The proposed strategies\nhighlight the role of post-growth treatments towards the fabrication of\nhigh-performance functional NG to be incorporated into future smart objects.\n
Non-steady-state measurement of in vivo radioligand binding with positron emission tomography: specificity analysis and comparison with in vitro binding (1991)

We previously have developed a non-steady-state method for in vivo measurement of radioligand-receptor binding in brain using positron emission tomography (PET) and 18F-spiperone (18F-SP). This method has proven to be highly sensitive to the detection of decreases in the apparent number of available specific binding sites. The purposes of this investigation are to demonstrate the specificity of this PET assay and compare findings to in vitro binding assays. Three to six studies were performed in each of five male baboons. Each animal was pretreated with either ketanserin [serotonergic (S2)], eticlopride [dopaminergic (D2)], or unlabeled SP to compete with 18F-SP for specific binding sites. Sequential PET scans and arterial-blood samples were collected for 3 hr after intravenous injection of 18F-SP. Data were analyzed with a three-compartment model that considered the accumulation of radiolabeled metabolites in arterial blood. Five baboons were killed, and radioligand-receptor binding in vitro was measured by homogenate techniques. There was no detectable in vitro or in vivo specific binding of SP in cerebellum. The specific binding of SP in striatal tissue in vitro was approximately 74% to D2 sites and 26% to S2 sites, whereas ketanserin displaced all specific binding in frontal cortex. In close agreement, specific binding measured in vivo with PET revealed that 68% of apparent striatal binding could be blocked by pretreatment with eticlopride, and 34% by ketanserin. The small apparent difference between receptor binding in vitro and in vivo may result from the relatively poor resolution of PET.(ABSTRACT TRUNCATED AT 250 WORDS)
Template-Based Semi-Automatic Profiling of Multimedia Applications (2006)

Modern multimedia applications possess a very dynamic use of the memory hierarchy depending on the actual input, therefore requiring run-time profiling techniques to enable optimizations. Because they can contain hundreds of thousands of lines of complex object-oriented specifications, this constitutes a tedious time-consuming task since the addition of profilecode is usually performed manually. In this paper, we present a high-level library-based approach for profiling both statically and dynamically defined variables using templates in C++. Our results in the visual texture coder of the MPEG4 standard show that using the information it provides, we can easily achieve 70.56% energy savings and 19.22% memory access reduction
Interprocedural slicing using dependence graphs (2004)

A slice of a program with respect to a program point p and variable x consists of all statements of the program that might affect the value of x at point p . This paper concerns the problem of interprocedural slicing -- generating a slice of an entire program, where the slice crosses the boundaries of procedure calls. To solve this problem, we introduce a new kind of graph to represent programs, called a system dependence graph , which extends previous dependence representations to incorporate collections of procedures (with procedure calls) rather than just monolithic programs. Our main result is an algorithm for interprocedural slicing that uses the new representation.The chief difficulty in interprocedural slicing is correctly accounting for the calling context of a called procedure. To handle this problem, system dependence graphs include some data-dependence edges that represent transitive dependencies due to the effects of procedure calls, in addition to the conventional direct-dependence edges. These edges are constructed with the aid of an auxiliary structure that represents calling and parameter-linkage relationships. This structure takes the form of an attribute grammar. The step of computing the required transitive-dependence edges is reduced to the construction of the subordinate characteristic graphs for the grammar's nonterminals.
Electrodesorption from single-crystal electrodes: analysis by differential electrochemical mass spectrometry (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrodesorption from single-crystal electrodes: analysis by differential electrochemical mass spectrometryThomas. Hartung, Udo. Schmiemann, Inge. Kamphausen, and Helmut. BaltruschatCite this: Anal. Chem. 1991, 63, 1, 44–48Publication Date (Print):January 1, 1991Publication History Published online1 May 2002Published inissue 1 January 1991https://pubs.acs.org/doi/10.1021/ac00001a008https://doi.org/10.1021/ac00001a008research-articleACS PublicationsRequest reuse permissionsArticle Views339Altmetric-Citations60LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Selection of hemodynamic, respiratory and metabolic variables for evaluation of patients in shock (1974)

SHUBIN, HERBERT MD; WEIL, MAX HARRY MD, PHD; AFIFI, ABDELMONEM A. PHD; PORTIGAL, LAWRENCE MS; CHANG, POTTER PHD Author Information
Estimating Differences in Variance when Comparing Two Methods of Assay (1975)

Morgan's test for the relative precision of two assays compared in the same set, of samples is extended to the case where the underlying distribution may not be hivariate normal and where the units of the two assays may differ. The jackknife is also suggested for computing confidence intervals on the differeuces in variance or coefficients of variation.
Developmental and genetic aspects of <i>Mutator</i> excision in maize (1989)

The regulation of excision of Mu elements of the Mutator transposable element family of maize is not well understood. We have used somatic instability of Mu receptor elements from the Bronze 1 and Bronze 2 loci to monitor the frequency and the timing of excision of Mu elements in several tissues. We show that spot size in the aleurone of a bz2::mu1 stock varies between one to approximately 256 cells. This indicates that excision events begin eight divisions prior to full aleurone differentiation and end after the last division of the aleurone. We show that excision is equally biased for late events in all other tissues studied. A locus on chromosome 5 has been identified that affects spot size, possibly by altering the timing of Mu excision. Using somatic excision as an assay of Mutator activity, we found that activity can change in small sectors of the tassel; however, there are no overall activity changes in the tassel during the period of pollen shedding. We also report the recovery of germinal revertants for the bz1::mu1 and bz2::mu1 alleles. One of these revertant alleles was characterized by Southern blot analysis and found to be similar to the progenitor of the mutable allele.
Large and diverse numbers of human diseases with HIKE mutations (2000)

HIKE is a highly conserved sequence motif identified as a candidate pleckstrin-homology (PH) domain binding site in Gbeta proteins, protein kinases, ankyrin and kinesin. HIKE motifs occur also in gelsolin, neurogranin, neuromodulin and in the PH domain of Bruton tyrosin kinase (BTK). Phosphatidylinositol-binding sequences more distantly related to HIKE are present in gelsolin, in the G protein-coupled receptor kinase 4 and in Trop-2. HIKE regions have been demonstrated to bind both proteins and lipids, and to regulate the interaction of Gbeta, neuromodulin and the BTK PH domain with downstream effectors and the cell membrane. Remarkably, mutations of the HIKE regions are common in diverse human genetic diseases. Several HIKE mutations in protein kinases lead to constitutive activation and cellular transformation, e.g. in MEN-2B, acute myeloid and mast cell leukemias, hereditary papillary renal carcinomas and multiple myeloma. Kinase-inactivating HIKE mutations cause Hirschsprung's disease, piebaldism, insulin resistance and developmental dysplasias. HIKE mutations in the PH domain of BTK lead to X-linked agammaglobulinemia, and different forms of amyloidosis are caused by mutations of HIKE-bearing molecules, for example gelsolin, Ret and Trop-2. Thus, quite diverse genetic diseases might share common molecular mechanisms. These include altered interactions of the mutated molecules with downstream effectors or the cell membrane, and defects in intracellular transport.
Self-Powered Triboelectric Nanosensor for Microfluidics and Cavity-Confined Solution Chemistry (2015)

Micro total analysis system (μTAS) is one of the important tools for modern analytical sciences. In this paper, we not only propose the concept of integrating the self-powered triboelectric microfluidic nanosensor (TMN) with μTAS, but also demonstrate that the developed system can be used as an in situ tool to quantify the flowing liquid for microfluidics and solution chemistry. The TMN automatically generates electric outputs when the fluid passing through it and the outputs are affected by the solution temperature, polarity, ionic concentration, and fluid flow velocity. The self-powered TMN can detect the flowing water velocity, position, reaction temperature, ethanol, and salt concentrations. We also integrate the TMNs in a μTAS platform to directly characterize the synthesis of Au nanoparticles by a chemical reduction method.
Neural Injury and Regeneration (Advances in Neurology, Volume 59) (1993)

Neural Injury and Regeneration (Advances in Neurology, Volume 59). Fred-rick J. Seil (Editor). Raven Press, New York, 1992. Pages: 384. Price: $110.00. This book represents a compendium of important research topics that were presented at the Fourth International Symposium on Neural Regeneration at Asilomar, California, in December 1991. Dr. Seil, a recognized leader in this field, has edited similar texts covering topics from these meetings in the past. This particular volume represents many of the state-of-the-art research issues related to this broad and rapidly changing field as of late 1991. Six major sections are presented (Regeneration in Alzheimer Disease and Aging; Myelin Injury and Repair; Spinal Cord Injury: Physiology and Transplantation; Steroid Hormones and Neuronal Regeneration; Regulatory Genes in Regeneration and Plasticity; and The Function of Phagocytic Cells in the Nervous System), with supporting chapters under each section. The chapter authors are research leaders in their particular fields and...
Structure and Behavior of Organic Analytical Reagents. Some Aryl Azo 8-Quinolinols. (1965)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and Behavior of Organic Analytical Reagents. Some Aryl Azo 8-Quinolinols.Susumu. Takamoto, Quintus. Fernando, and Henry. FreiserCite this: Anal. Chem. 1965, 37, 10, 1249–1251Publication Date (Print):September 1, 1965Publication History Published online1 May 2002Published inissue 1 September 1965https://pubs.acs.org/doi/10.1021/ac60229a020https://doi.org/10.1021/ac60229a020research-articleACS PublicationsRequest reuse permissionsArticle Views82Altmetric-Citations26LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
[Recent urethral rupture. From diagnosis to treatment]. (1984)

A retrospective study of 30 cases of rupture of the urethra treated over a period of 12 years showed that the membranous urethra was involved in 25 patients. Cases of partial rupture of the anterior urethra treated by transient urine bypass were excluded from the study. As a result of the only moderate results obtained before 1977, the following therapy was instituted for ruptures of the posterior urethra after that date: immediate insertion of a suprapubic bladder drain (percutaneous or surgical); visualization of bladder and urethra on the 5th day using the bladder catheter and retrograde urethrography; deferred emergency repair operation towards the 8th or 10th day for cases with a stable pelvis and absent vital lesions; delayed repair during the 3rd month for the other cases. Results were evaluated as good with respect to urethral permeability in 3 of the 6 cases of emergency repair, 10 of 12 patients receiving deferred emergency surgery and 11 of 12 cases of delayed operation. Only two cases of sexual impotency were noted among the last ten cases treated. The obvious procedure to be adopted whenever possible is therefore an end-to-end urethrography as a deferred emergency operation.
Waveform analysis of clotting test optical profiles in the diagnosis and management of disseminated intravascular coagulation (DIC) (2002)

Transmittance waveform charts the changes in light transmittance on standard coagulation assays, such as the prothrombin time (PT) and activated partial thromboplastin time (APTT). Analysis and characterization of these data on photo-optical coagulation analysers provides additional qualitative and quantitative information to that obtained using the clotting time alone. The most thoroughly evaluated clinical application is that of the biphasic APTT waveform with disseminated intravascular coagulation (DIC). The degree of waveform abnormality correlates directly with the severity of haemostatic dysfunction and allows for both the prediction and monitoring from non-overt to overt DIC. As its performance is simple and rapid, this provides the means for targeting therapeutic intervention to an earlier stage of DIC. The recent identification that the mechanism underlying the biphasic waveform is a complex that exists in vivo between C reactive protein with very low density lipoprotein, provides potentially important insights into the molecular pathogenesis of DIC. Thus, in addition to the immediate clinical utility in diagnostic practice, it has important applications as a research tool. Preliminary experience in the application of this technology to the diagnosis and management of the haemophilias and the lupus anticoagulant syndrome has also provided evidence of the power and utility of waveform analysis in essentially simple clotting assays.
EMI shielding performance by metal plating on mold compound (2016)

Conformal plating on mold compound is a new fabrication process technology, it offers new possibility for IC package design to improve features such as rigidization of the flexible core, heat sinking, 3D circuit patterning and EMI shielding. This fabrication technology had successfully demostrated a process which is able to achieve high reliable performance, as being proven to have high peeling strength and electrical consistency after sample had gone through the critical moisture and temperature cycle test. Following after the reliability test, this paper studies the shielding effectiveness of varying coating thickness with respect to laboratory simulated EMI condition using radio frequency from 10MHz to 5.8 GHz. Different metal namely pure nickel, nickel-phosphorous and pure plated copper are also being studies for their performance in the effectively of EMI sheilding.
SAR imaging using a coherent ultrawideband random noise radar (1999)

A coherent ultrawideband random noise radar system operating in the 1 - 2 GHz frequency range has been developed at the University of Nebraska. A unique signal processing procedure based upon heterodyne correlation techniques preserves phase coherence within the system, thereby enabling it to be used for synthetic aperture radar (SAR) imaging. The amplitude and the phase response of the system are used to form the frequency-domain target scattering profile matrix, which is then transformed into a SAR image. The ultrawideband nature of the transmit waveform presents some unique challenges in signal processing. A technique has been developed that achieves the theoretical cross-range resolution, and this method has been validated by field measurements at 200 meters range to target. Controlled close-range SAR experiments at 8 - 10 meters range clearly demonstrate the ability of the system to provide high resolution images of targets located in a cluttered background and to extract the spatial geometry of the scattering center locations. The paper will present theoretical basis for random noise SAR imaging as well as experimental results and discussion.
Top Down Viewing of the Inductively Coupled Plasma Using a Dual Grating, Direct Reading Spectrograph and an All Mirror Optical System (1980)

Using an all-mirror optical system, an inductively coupled plasma is viewed top down and the light is directed to a dual grating, direct reading spectrograph. Top down viewing of the plasma, with masking of the image of the argon plasma torus at the spectrograph entrance slit, significantly reduces background signal from the source and permits the use of the depth of field of the optical system to achieve compromise conditions for viewing the plasma. Light from the plasma source is introduced to the optical system by means of a mirror situated directly over the plasma. The system is exhausted in such a way that cool air flowing past the mirror forms a thermal barrier between the mirror and the plasma. Elements such as copper and lead have atomic and ionic lines which tend to exhibit self absorption when viewed top down through the cooler ground state atoms in the plume of the plasma. One of the approaches to this problem is to shear off the plume of the plasma with a jet of air directed across the tip of the plasma. A second approach is to make use of the dual grating, direct reading spectrograph and real-time computer system which easily permits the setting of alternate lines for each element so that self absorption and matrix effects are minimized. The design of the dual-grating, direct-reading spectrograph allows for the mounting of more than 200 13-mm-dia photomultiplier tubes along the focal curves. In an effort to demonstrate the use of fiber optics as a viable technique for the closer placement of exit slits, a red sensitive photomultiplier tube was coupled with a 30-cm fiber-optic ribbon to detect light from the Li 670.784 nm line on the focal curve. It was successful and had the added advantages of absorbing second-order ultraviolet light.
ARTERIAL WALL STIFFNESS, INSULIN RESISTANCE, BRAIN NATRIURETIC PEPTIDE AND THE FUNCTIONAL AND STRUCTURAL CHANGES OF THE MYOCARDIUM AT DIABETIC CARDIOVASCULAR AUTONOMIC NEUROPATHY (2013)

It was studied 65 patients with type 2 diabetes: 12 patients without cardiovascular disease, 14 —with subclinical, 18 — with functional, 21 — with functional-organic stage of diabetic cardiovascularautonomic neuropathy. Type 2 diabetes without a cardiovascular disease is characterized by atendency to increase the arterial wall stiffness. The subclinical stage of diabetic autonomic neuropathyis characterized by increased pulse wave velocity in the aorta (PWVao). The functional stagecharacterized by an increase of the index of augmentation in aortic and brachial arteries, PWVao,ambulatory arterial stiffness index. Functional- organic stage is characterized by pathological changesof the arterial wall striffnesss. The diabetic cardiovascular autonomic neuropathy is accompanied byincreased of insulin resistance, insulin, HOMA-IR, NT-proBNP. There is a direct correlation betweenNT-proBNP, left ventricular mass and PWVao