gebhart/patrepeval huggingface dataset:
Redox States of Well-Defined π-Conjugated Oligothiophenes Functionalized with Poly(benzyl ether) Dendrons (2000)

The redox states of a series of well-defined hybrid dendrimers based on oligothiophene cores and poly(benzyl ether) dendrons have been studied using cyclic voltammetry and variable-temperature UV/visible/near-IR spectroscopy. The oxidation potentials and the electronic transitions of the neutral, singly oxidized, and doubly oxidized states of these novel hybrid materials have been determined as a function of oligothiophene conjugation length varying between 4 and 17 repeat units. The attachment of poly(benzyl ether) dendritic wedges at the termini of these lengthy oligothiophenes considerably enhances their solubility, thus enabling the first detailed investigation of the electronic structure of oligothiophenes having 11 and 17 repeat units with minimal β-substitution. In the case of the undecamer and heptadecamer, we find that the dicationic state consists of two individual polarons, rather than a single bipolaron. The effect of the dendritic poly(benzyl ether) solubilizers on the properties of the redox states varies with the oligothiophene length and dendron size. More specifically, we observe a kinetic limit to the electrochemical oxidation of the oligothiophene core when the dendron is large compared to the electrophore. Finally, we have observed the first example of self-complexation of cation radicals via π-dimerization leading to the formation of dendritic supramolecular assemblies.
Identification and subcellular localization of apolipoprotein N-acyltransferase in Escherichia coli (1991)

Apolipoprotein N-acyltransferase, the enzyme catalyzing the conversion of apolipoprotein to mature lipoprotein, was detected by an in vitro assay using [35S]methionine-labeled apolipoprotein as the substrate. Triton X-100 solubilized the enzyme, and was required for its activity. The enzyme showed a broad pH optimum (pH 6.5–7.5). N-Acylation of apolipoprotein with ethanol-washed membranes was dependent on exogenous phospholipids, with phosphatidylethanolamine, phosphatidylglycerol and cardiolipin all showing about 10- to 20-times enhancement of the enzyme activity in the delipidated membranes. Incubation of apolipoprotein with [3H]palmitate-labeled membranes resulted in the incorporation of [3H]palmitate into lipoprotein. The enzyme was found to be enriched in the inner membrane and in the inner membrane/outer membrane mixed fractions of the E. coli cell envelope.
The effect of margin design on the marginal adaptation of temporary crowns (1994)

Accurate marginal fit and proper contour and surface finish of a temporary crown are needed to maintain healthy contiguous gingiva before the placing of the final restorations. In this study, the effect of two finish line types and the period of their remaining in the mouth on the marginal adaptation of temporary crowns was examined. According to our research findings, although no statistically significant difference was found between the marginal adaptation of the crowns of the chamfer and shoulder types, after 7 days a discrepancy of an important degree was observed in the shoulder type crown (t = 2.379, P < 0.05).
Sorption of hydrogen cyanide by mature lemons and oranges in a dynamic system and in a commercial fumatorium as evaluated by gas chromatography with nitrogen detector (1971)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSorption of hydrogen cyanide by mature lemons and oranges in a dynamic system and in a commercial fumatorium as evaluated by gas chromatography with nitrogen detectorFrancis A. Gunther, Antonio. Lopez-Roman, and James H. BarkleyCite this: J. Agric. Food Chem. 1971, 19, 3, 508–512Publication Date (Print):May 1, 1971Publication History Published online1 May 2002Published inissue 1 May 1971https://pubs.acs.org/doi/10.1021/jf60175a015https://doi.org/10.1021/jf60175a015research-articleACS PublicationsRequest reuse permissionsArticle Views29Altmetric-Citations2LEARN 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
Environmental control technology for atmospheric carbon dioxide. Final report (1979)

The impact of fossil fuel use in the United States on worldwide CO/sub 2/ emissions and the impact of increased coal utilization on CO/sub 2/ emission rates are assessed. The aspects of CO/sub 2/ control are discussed as well as the available CO/sub 2/ control points (CO/sub 2/ removal sites). The primary factor affecting the practicability of a CO/sub 2/ control system is the energy required by the control system. Of the three potential CO/sub 2/ control points, removal from the stacks of fossil fuel power plants appears to require the least amount of energy. Estimates of the energy required to capture and recover CO/sub 2/ from coal-fired power plant stacks by various processes are presented. Although capture and recovery of CO/sub 2/ is an important consideration in the overall scheme of CO/sub 2/ control, disposal or reuse of recovered CO/sub 2/ may be the weakest link in the CO/sub 2/ control chain. Of the several options considered, deep ocean storage appears to be the most promising. Two control scenarios are evaluated, one based on the absorption of CO/sub 2/ contained in power plant flue gas by seawater; the other, based on absorption of CO/sup 2/ by monoethanolamine (MEA). Captured CO/sub 2/ is injected into the deep ocean in both cases. Analyses indicate that capture and disposal by seawater is not feasible, whereas capture and disposal using MEA is a possibility. However, the economic penalties of CO/sub 2/ control are significant; for example, at a CO/sub 2/ removal efficiency of 50%, it is estimated that the power generation efficiency of a conventional coal fired power plant would be reduced from 34 to about 25%. The cost of power generation would be expected to double. For 90% CO/sub 2/ removal, power generation efficiency is reduced to between 15 and 6% and the cost of power generation increases by a factor of from 4 to 7.
Metadata for Object-Relational Data Warehouse (2000)

For developing data warehouse (DW) and OnLine Analytical Processing (OLAP) systems, the dominant relational database reaches its limitations. On the way of the development, object-relational (O-R) database is preferred to get over those ones. This paper introduces metadata for data warehouse system on O -R database and specifies new kind of metadata for mapping from object-oriented environment to relational environment. We also present the storage structure for repository this new kind of metadata in O-R database.
Keratin 2e: A Marker for Murine Nipple Epidermis (2004)

Mesenchyme-derived signals influence the unique keratinization and appendage formation programs in specialized skin regions. Interactions between primary mammary mesenchyme and epidermal cells result in the formation of the nipple; however, it is unclear whether this represents a site of regionally specialized epidermis. We profiled the ultrastructure and keratin expression of the murine nipple, and the ventral skin of the K14-parathyroid hormone-related protein (PTHrP) transgenic mouse, which models nipple formation. We found the murine nipple and ventral K14-PTHrP epidermis display expanded suprabasal and granular layers, as well as a thickened cornified layer compared to ventral skin of wild-type littermates. We also observed increased levels of filaggrin in extracts from the ventral epidermis of the K14-PTHrP mouse when compared to that of wild-type littermates. Keratin 2e, previously reported to be expressed in various specialized epidermal sites in the mouse, is expressed in the nipple and the ventral skin of the K14-PTHrP mouse. Keratinocytes grown from the ventral epidermis of the K14-PTHrP mouse or wild-type littermates exhibited identical expression of epidermal markers in vitro, suggesting that the modulated differentiation profile observed in the nipple or the ventral K14-PTHrP skin was dependent on interactions with fibroblasts. The lack of appendages, altered stratification pattern and expression of a specialized keratin suggests that the murine nipple is an example of regionally specialized epidermis.
Acoustic Absorbers and Diffusers: Theory, Design and Application 2nd Edition (2010)

This definitive guide covers the design and application of absorbers and diffusers in acoustics. Surface diffusion is a relatively young subject area, and diffuser design, application and characterisation are often not well understood. Although there is greater knowledge of absorption, it is also informed by new research. As two of the main design tools for altering the acoustic conditions of rooms, the correct use of absorbers and diffusers is important to the creation of quality acoustics. This text details the evolution and the current state of the art in diffuser and absorber research and application. It covers a range of practical and theoretical aspects, with extensive examples of installations and case studies to cater to practitioners working in the measurement, modelling and design of rooms, semi-enclosed spaces as well as in noise control. It is also invaluable for students and researchers wanting a grounding in acoustic treatment, as well as understanding the latest developments. 


All chapters have been revised and brought up to date in this new edition, with new applications, absorbers and diffusers featured. Sustainability, portable vocal booths, and fast time domain models for diffusers are just a few of the new sections. Improved techniques for measurement and prediction are included, as well as bringing old methods up-to-date with the latest refinements from standards and research. Most of the prediction methods in the book are now linked to open source implementations and downloadable MATLAB scripts, enabling readers to exploit the knowledge in this book more readily in design and research.
Chekhov on screen (2000)

Although Anton Chekhov was only thirty-six when the cinema was invented, serious film-making did not begin in Russia until a couple of years after his death. So, unlike his contemporaries Maxim Gorky (six years his junior) and George Bernard Shaw (four years his senior), who both took a passionate interest in the possibilities of the new medium, he did not live to see his work reach the screen. His niece however, Olga Chekhova, a sculptress who emigrated to Germany, appeared in F. W. Murnau's Schloss Vogelod (1921) and Rene Clair's Un Chapeau de paille d'Italie (1927), and his nephew, Michael Chekhov, enjoyed considerable success in America as both teacher and actor, his most celebrated role being the psychotherapist to whom Ingrid Bergman takes Gregory Peck in Alfred Hitchcock's Spellbound (1945).
Substrate integrated high-Q dielectric resonators for low phase noise oscillator (2009)

This paper presents a substrate integrated dielectric resonators utilizing multilayer printed circuit boards (PCB) for high performance microwave system-on-package applications such as low phase noise oscillators. Via posts are used as for tightly confining electromagnetic energy as a metallic boundary wall so as the dielectric puck could be integrated into the multilayer PCB. The simulated results show that the resonator resonances at TE <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">01δ</inf> mode with a frequency at Ku band. The unloaded Q of the dielectric resonator is around 14,000 at the operating frequency. However, because of the limitation of the height between of the resonator in the multilayer PCB, conductive loss is increased and the unloaded Q of the resonators is reduced to about 3,500. In order to improve the phase noise of an oscillator, a variety of the dielectric resonators are developed to find out the best unloaded Q and correct frequency. EM Simulations and measurements show close agreements.
Structural identification and synthesis of luciferin from the bioluminescent earthworm, Diplocardia longa (1976)

For the first time, luciferin from a bioluminescent earthworm has been purified, identified, and synthesized. This luciferin from the North American species, Diplocardia longa, is a simple aldehyde compound, N-isovaleryl-3-aminopropanal, with an amide functional group. It is a clear, odorless oil at room temperature. It is nonvolatile and has no near-uv-visible absorption or fluorescence. Derivatives of this compound were made to facilitate its identification: the luciferin 2,4-dinitrophenylhydrazone (mp 174 degrees C), a yellow crystalline solid; and the luciferin alcohol, a clear oil. Synthesis of Diplocardia luciferin yielded an oil of identical spectroscopic (proton nuclear magnetic resonance (NMR), 13C NMR, mass, and ir), chemical (dinitrophenylhydrazone and alcohol derivatives, bioluminescence activity), and physical (thin-layer chromatography, volatility) properties to those of the purified native Diplocardia luciferin.
Predictors and Prognosis of Inability to Get Up After Falls Among Elderly Persons (1993)

The risk factors for inability to get up were similar to those for falling, although certain factors imparted a particular risk of inability to get up without help. The frequency of inability to get up and the short- and long-term morbidity associated with this inability suggest the need for preventive and treatment efforts.
Inducible nitric oxide synthase (iNOS) expression and its prognostic value in prostate cancer. (2001)

iNOS has been related to stimulative and suppressive effects on cancer cell growth, but the prognostic value of iNOS has not been previously studied in PC. Here we could demonstrate an association between strong iNOS expression and rapid cancer cell proliferation rate, dedifferentiation and advanced stage cancer. The strong iNOS expression was a predictor of poor survival in univariate analysis, but was inferior to established prognostic factors in multivariate analysis.
Identification and Extraction of Chicken Egg Yolk Immunoglobulin from Egg by Polyethylene Glycol (PEG) Precipitation (2015)

<div><table cellspacing="0" cellpadding="0" align="center"><tbody><tr><td align="left" valign="top"> <strong><em>Background</em></strong><strong>: </strong><em>Staphylococcus aureus</em> strains exhibiting multiple antibiotic resistances are isolated from most communities and hospital infections. Treatment of patients with these infections has been difficult. The aim of this study was to detect and extract, the egg yolk immunoglobulin Y as a potential source of anti- <em>S. aureus</em> antibody. <strong><em>Methods</em></strong><strong>: </strong>Specific IgY was produced by immunizing hens with formalin-killed <em>S. aureus</em>. The specificity of serum`s antibody was confirmed by ELISA method. The antibodies were extracted from egg yolk by polyethylene glycol (PEG) precipitation. Proteins were analysed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). <strong><em>Results</em></strong>: Chicken egg yolk antibodies (IgY) were raised against <em>S. aureus</em> in the serum after injections. Up to 104 dilution specific antibodies were determined in serum.<strong> </strong> <strong><em>Conclusion</em></strong><strong>: </strong>The results of the ELISA indicates the specificity of the immunoglobulin Y to the target antigen. In order to find a viable alternative to antibiotic treatments, more research must be done on the ability of these antibodies to inhibit the growth of <em>S. aureus</em>.<strong> </strong> </td></tr></tbody></table></div>
Meeting IFPCS control system design challenges with H (1997)

Future Advanced Short Take-Off and Vertical Landing (ASTOVL) aircraft which will replace the current Harrier will provide a challenging problem to the flight control systems design team. The combined requirements of supersonic flight and powered lift regimes provide very difficult constraints on the design of the aircraft, and as a result the dynamics are inherently much harder to control than for existing aircraft. In particular, a high degree of cross-coupling is expected when effecting changes in thrust magnitude and direction (nozzle angle). On the Harrier this cross-coupling is not that high, the thrust vector acting close to the centre of gravity. This enables the pilot to fly the aircraft without recourse to complex multiaxis feedback systems. However, even this moderate amount of cross-coupling does impact significantly on pilot workload. With increased coupling in future ASTOVL aircraft, feedback around all axes will be a requirement. This paper briefly discusses some of the issues facing the designer when applying the H/sub /spl infin// method to more complex aircraft.
Handwritten digit recognition by neural 'gas' model and population decoding (2002)

In this paper, we present a handwritten digit recognition scheme using a topology representation model called neural gas. Instead of applying the model only for feature extraction, we train test separate gas models which aim to describe the data submanifolds respectively in the ten classes. A modular classification system is proposed based on the idea of population decoding, as a topographic map essentially provide a kind of population code for the input. Experiment results show a fast learning and a high recognition rate.
Lysophosphatidylcholine-induced cellular injury in cultured fibroblasts involves oxidative events (2000)

Lysophosphatidylcholine (lysoPC), formed during LDL oxidation and located within atherosclerotic plaques, induces numerous cellular responses, but via unknown mechanisms. Cellular events involved in sublethal lysoPC-induced injury were examined because these are relevant to mechanisms by which lysoPC alters cell behavior. LysoPC evoked transient membrane permeabilization in fibroblasts within 10 min. Cells underwent reversible rounding within 2 h, returning 3 h later to grossly normal appearance and a normal response to growth stimulation. We asked whether this sublethal permeabilization resulted from physical perturbation of the plasma membrane or if it required cellular events. LysoPC induced leakage of fluorescent dye from unilamellar phospholipid vesicles, suggesting physical membrane perturbation was a significant contributor. To characterize this further we increased the cholesterol content of cells and vesicles to stabilize membranes, and found decreased lysoPC-induced permeabilization in both cell and cell-free systems as cholesterol levels increased. Interestingly, vitamin E, a known antioxidant, blunted lysoPC-induced permeabilization and morphological changes in cells. Thus, lysoPC appeared to cause an unexpected oxidant stress-dependent enhancement of cell injury. To confirm this, several structurally distinct antioxidants, including N, N'-diphenyl-1,4-phenylenediamine, Desferal, Tiron, and 4-hydroxy TEMPO, were applied and these also were inhibitory. Oxidant stress was observed by a lysoPC-induced increase in fluorescence of 5- and 6-carboxy-2',7'-dichlorodihydrofluorescein diacetate, an intracellular marker of reactive oxygen species. Lysophosphatidylethanolamine (lysoPE) caused qualitatively similar morphological changes to cells and induced permeabilization, but injury by lysoPE was not inhibited by antioxidants. These data suggest that generation of intracellular reactive oxygen species follows lysoPC-induced plasma membrane destabilization and that this lysoPC-specific oxidant stress enhances cell injury. This intracellular oxidant stress in response to lysoPC may be an integral part of the multiple influences lysoPC has on gene expression and cell function.
The present and future burden of urinary bladder cancer in the world (2009)

Urinary bladder cancer (UBC) is a common disease worldwide. At any point in time 2.7 million people have a history of UBC. The incidence of UBC varies over the world with highest rates in developed communities. But the burden of UBC will increase in less developed areas of the world. These changes can be attributed to global changes in exposure to risk factors for UBC and growth and aging of the world population.
Tumor lysis syndrome: current perspective (2007)

T umor lysis syndrome is characterized by a group of metabolic derangements caused by the massive and abrupt release of cellular components into the blood following the rapid lysis of malignant cells. It is observed most frequently in patients with hematologic malignancies such as acute lymphoblastic leukemia (ALL) and Burkitt's lymphoma after the initiation of chemotherapy, although it may also occur in other malignancies, both hematologic and solid tumors. 2] The key to the management of tumor lysis syndrome includes awareness of its causes, identification of high-risk patients, implementation of appropriate prophylactic measures, vigilant monitoring of electrolyte levels in patients undergoing chemotherapy, and initiation of more active treatment measures when necessary.
Fast Crabs and Cigarette Boats: A Speculative Essay (1991)

Imagine, if you will, that you live in the richest, most influential nation on earth. This is a country whose political system has been consciously adopted by neighboring heads of state seeking to duplicate the same stability and prosperity in their own societies. It is a country that has certainly experienced unprecedented growth and cultural achievement in its past two hundred years and thus contains some of the most magnificent and intellectually exciting urban centers in the world. You would be justifiably proud to live in such a place.
A new hierarchical layout compactor using simplified graph models (1992)

A new hierarchy-preserving hierarchical compactor which can be used with either 1-D or 2-D leafcell compaction techniques has been developed. The compactor is applicable to hierarchical layouts which consist of a number of arrays of identical cells. The hierarchy is maintained throughout the compaction process so that all the instances of a subarray of identical cells have the same shape after compaction. A hierarchical compactor based on the suggested simplified graph model has been developed and experimental results on several benchmark examples showed that the proposed method was satisfactory. >
Explicit Model Predictive Control of Quadratic Boost Converter for High Step-Up Applications (2018)

This paper proposes a control design for constant frequency switch-mode DC-DC Quadratic Boost Converter (QBC) using Explicit Model Predictive Control (EMPC). The discrete-time state space model is derived for the QBC and formulated as Multi-Parametric Quadratic Programming (mpQP) problem. The solution to the optimization problem is the optimized control law calculated online using Multi-Parametric Toolbox 3.0 (MPT 3.0) and MATLAB. The simulation result shows the optimal performance of EMPC compared to the conventional PI controller.