gebhart/patrepeval huggingface dataset:
High-speed living anionic polymerization of methacrylic esters with aluminum porphyrin initiators. Organoaluminum compounds as Lewis acid accelerators (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigh-speed living anionic polymerization of methacrylic esters with aluminum porphyrin initiators. Organoaluminum compounds as Lewis acid acceleratorsHiroshi Sugimoto, Masakatsu Kuroki, Tsuyoshi Watanabe, Chikara Kawamura, Takuzo Aida, and Shohei InoueCite this: Macromolecules 1993, 26, 13, 3403–3410Publication Date (Print):June 1, 1993Publication History Published online1 May 2002Published inissue 1 June 1993https://pubs.acs.org/doi/10.1021/ma00065a025https://doi.org/10.1021/ma00065a025research-articleACS PublicationsRequest reuse permissionsArticle Views373Altmetric-Citations38LEARN 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
Facial prosthetic model fabrication using rapid prototyping tools (2000)

While computerized tomography (CT) and magnetic resonance imaging (MRI) technologies are highly commendable for their applications and usage, sometimes cases involving facial anatomy restoration may not necessarily require these highly sophisticated technologies. A suitable replacement that is also non‐contact and allows fast image capture is the laser digitizer surface scanner. This scanner takes only seconds to capture an image of the patient’s sound or healthy facial anatomy. By using the captured image data, it is possible, with the help of a surface data modeller rapid prototyping (RP) machine and vacuum casting machine, to manufacture the prosthesis for implant. Presents a novel approach for facial prosthesis fabrication through a case study of a prosthetic ear model using an integrated manufacturing system comprising the laser surface digitizer, surface data modeller, rapid prototyping system and vacuum casting system.
Performance comparison of stall avoidance mechanisms for high speed downlink packet access in the WCDMA system (2004)

In this paper, we investigate stall avoidance mechanisms for the W-CDMA system with high speed downlink packet access (HSDPA). The stall avoidance mechanisms are aimed to reduce transmission delays and keep in-sequence delivery of MAC layer data to the upper layer. By analysis and simulation, we compare three stall avoidance mechanisms, including the timer-based, the window-based, and the indicator-based methods. For comparison, we introduce a new performance metric called the gap processing time. Our results show that for E/sub b//N/sub 0/ equal to 7 dB in the AWGN channel, the average gap processing time for the indicator-based method is 8.49 transmission time intervals (TTIs) and those for the window-based method and the timer-based method are 36.38 TTIs and 175.5 TTIs, respectively. In a Rayleigh fading channel, we find that the gap processing time of the window-based and the indicator-based methods are higher than in the AWGN channel, while the timer-based method has the same gap processing time in both the AWGN channel and the Rayleigh fading channel.
The Doppler CO2 test to exclude patients not in need of extracranial/intracranial bypass surgery. (1989)

In patients with an internal carotid artery (ICA) occlusion who suffer from ipsilateral transient ischaemic attacks or minor stroke extra/intracranial (EC/IC) bypass surgery may be useful only where there is insufficient collateral supply. The transcranial Doppler CO2 test offers a simple method of investigating the residual autoregulatory capacity which gives quantitative information about the efficiency of the collaterals. In 155 patients with 162 ICA occlusions there was a significant correlation between a markedly decreased or exhausted autoregulatory capacity and a recent ipsilateral ischaemic event (p less than 0.001). The Doppler CO2 test may enable the exclusion of patients not in need of EC/IC bypass surgery. In the reported series this affected more than 80% of all ICA occlusions.
Problem-oriented access to clinical literature on acute cardiac ischemia (2002)

A knowledge-based system which allows access to results of clinical studies for an individual patient with acute cardiac ischemia is described. The knowledge base contains 20 recent studies applicable to three periods of time in the hospital. An abstract model for the representation of the studies and a facility for consultations have been developed. The inference process includes the determination of a patient-specific decision context and the rule-based application of the studies. The consultation ends with an assorted list of relevant clinical events and their frequencies in groups which are similar to the patient under consideration. The system performed well with retrospective data.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Compact air-cooled heat sinks for power packages (1997)

The main findings of a theoretical and experimental work carried out in the development of compact air-cooled heat sinks tailored for spot-cooling of power packages are presented. After formulating the particular cooling task, the thermal issues and practical constraints of a compact heat exchanger design are matched to yield three structures, i.e., microchannel, woven wire screen and porous metal fiber, to be viable candidates. A simplified analytical model is developed to allow performance analyses and optimizations of microchannel and woven wire screen heat sinks operated in impingement mode. Based on the simulation results, five novel heat sinks are fabricated and tested. An experimental setup is built to investigate the effects of heat sink structure, mass-flow rate of air, power dissipation and mounting conditions on heat sink performance. In the measurements the source-gate voltage of the selected MOSFET is used as temperature sensitive electrical parameter (TSEP) to obtain the peak junction temperature. Dissipated base plate and volumetric heat fluxes of 15 W/cm/sup 2/ and 5 W/cm/sup 3/ are achieved, along with reasonable pressure and pumping power requirements as well as accompanying acoustic noise. Obtained results yield a fivefold enhancement in heat removal capability compared to traditional forced air-cooling schemes.
The influence of alkali and alkaline earths on the working range for bioactive glasses (1997)

Viscosity-temperature dependence has been investigated for glasses in a system where bioactive compositions are found. A glass is called bioactive when living bone can bond to it. In this work, high-temperature microscopy was used to determine viscosity-temperature behaviour for 40 glasses in the system Na2O-K2O-MgO-CaO-B2O3-P2O5-SiO2. The silica content in the glasses was 39-70 wt% % All glasses containing < 54 mol % SiO2 devitrified during the viscosity measurements. Generally, glasses that devitrified contained more alkali but less alkaline earths than glasses with a large working range. A working range is the temperature interval at which forming of a glass can take place. This temperature interval can, for bioactive glasses, be enlarged by decreasing the amount of alkali, especially Na2O, in the glass and by increasing the amount of alkaline earths, especially MgO. Optionally, B2O3 and P2O5 can be added to the glass. An enlarged working range is a prerequisite for an expanded medical use of bioactive glasses as e.g., sintered and blown products, and fibers.
The People’s Republic of China In My Eye (2009)

On October 1st, 1949, I was a young college student in Ohio, USA, having left China on- ly four months before, and when I read that Mao Zedong had shouted from the Tiananmen rostrum The Chinese People have stood up!
Application and analysis of the virtual machine approach to information system security and isolation (1973)

Security is an important factor if the programs of independent and possibly malicious users are to coexist on the same computer system. In this paper we show that a combined virtual machine monitor/operating system (VMM/OS) approach to information system isolation provides substantially better software security than a conventional multiprogramming operating system approach. This added protection is derived from redundant security using independent mechanisms that are inherent in the design of most VMM/OS systems.
Leber Hereditary Optic Neuropathy Possibly Triggered by Exposure to Tire Fire (2006)

We report three members of one family, a mother and two daughters aged 4 and 7 years, who developed visual loss from Leber hereditary optic neuropathy within a 19-month period. All three had been exposed to smoke from two large rubber tire fires within the previous 24 months, suggesting the possibility of an epigenetic triggering factor.
Photobiomodulation Affects Key Cellular Pathways of all Life‐Forms: Considerations on Old and New Laser Light Targets and the Calcium Issue (2018)

After 50 years of studies on photobiomodulation (PBM), there is still so much to investigate to understand the laser light-nonplant cells interactions. The current scientific knowledge allows to say that the phenomena induced by PBM are based on cellular pathways that are the key points of cell life. The mitochondria chromophores, also present on the bacterial membrane, the calcium channels, ion that regulates the life-and-death cellular processes, as well as the TRP family, whose genes have been found in protozoa and suggest that its basic mechanism evolved long before the appearance of animals, seem to be elective targets in photobiomodulatory events by wavelengths from 600 up to 980 nm. The ambiguous resulting cellular communication way, mediated by ATP, ROS and/or calcium, leads to cell manipulation, which modifies its metabolism and whose response connects all life-forms from bacteria to vertebrates. Because of the Giano-Bifronte features of ROS and calcium, as well as the fine balance of energetic mitochondrial processes, whose alteration is responsible for several diseases, the PBM can show unpredictable results and it requires scrupulous approach to avoid cellular damages. However, when carefully applied, PBM is able to improve nonhealthy cell's responses and represents a reliable support in human and veterinary medicine.
Inertial collection of aerosol particles at circular aperture (1975)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInertial collection of aerosol particles at circular apertureT. N. Smith and C. R. PhillipsCite this: Environ. Sci. Technol. 1975, 9, 6, 564–568Publication Date (Print):June 1, 1975Publication History Published online1 May 2002Published inissue 1 June 1975https://pubs.acs.org/doi/10.1021/es60104a009https://doi.org/10.1021/es60104a009research-articleACS PublicationsRequest reuse permissionsArticle Views57Altmetric-Citations19LEARN 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
Transport of yeast vacuolar trehalase to the vacuole (1988)

We have tested yeast secretory mutants, which define different stages of the secretory pathway, for their levels of vacuolar trehalase activity. Mutations that cause accumulation of secretory proteins in the endoplasmic reticulum or in the Golgi body lead to diminished vacuolar trehalase activity. Mutations that cause accumulation of secretory vesicles have no effect on vacuolar trehalase activity. None of the mutations affects cytoplasmic trehalase activity. These results provide further evidence for the existence of a compartmentalized trehalase in yeast, and demonstrate that the enzyme enters the secretory pathway.
Dynamic Tear Energy—A Practical Performance Criterion for Fracture Resistance (1970)

The dynamic tear (DT) method of testing for fracture toughness is described. Design of specimens, impact test machines, and methods for energy measurement are presented. The relationship between DT energy and KIc values is presented for steel, and procedures for translating the energy values to design parameters such as critical flaw size and stress level are outlined. The current need for the use of the DT test in the development and selection of high-strength structural metals is illustrated by examples of conditions where the Cv test can be shown to be inadequate. Fracture toughness criteria defined by Cv and DT tests are compared for a high-strength titanium alloy, a 180-ksi yield strength steel, a 140-ksi yield strength steel weld metal, and a quenched and tempered 2¼ Cr-1 Mo steel of 90 ksi yield strength. In all of these examples the Cv test is shown to provide information in variance to that from the DT, DWT-NDT, and Robertson tests. It is concluded that the DT test method has desirable features for general industrial use, and it can provide broad-scope characterization of the fracture resistance of steels, titanium alloys, and aluminum alloys.
Two microphone nonlinear frequency domain beamformer for hearing aid noise reduction (2002)

A two microphone beamforming algorithm for hearing aid noise reduction is described. The algorithm is based on a short time Fourier transform analysis/synthesis system with nonlinear frequency domain adaptive filtering. The algorithm has been implemented on a portable battery powered device. Subjective ratings and BKB sentence scores for a group of hearing aid wearers are reported.
Adaptive multimedia interfaces in PolyMestra (1996)

An architecture for a new generation of multimedia systems is presented based on the concept of metawidgets, which are collections of alternative representations for information, both within and across sensory modalities, along with user--transparent mechanisms for choosing among them. The proposed architecture allows us to overcome certain drawbacks of today&apos;s systems, where the designer typically must assign each component of the display to a specific modality in a fixed and inflexible manner. The design of the POLYMESTRA environment based on our architecture is next described in detail, with particular emphasis on the layered development approach, core software tools and inter--application communication. Finally, we discuss the current status of the implementation, and outline plans for distribution of the prototype later this year to get user feedback. KEYWORDS: multimedia systems, multimodal widgets, object oriented frameworks, C++ and STL. 1. INTRODUCTION Multimedia systems which...
β‐Adrenoceptor binding defects in cell lines from families with manic‐depressive disorder (1984)

Binding of 125I-iodohydroxybenzylpindolol to beta-adrenoceptors has been examined in lymphoblastoid cell lines from members of 5 families affected by manic-depressive disorder. Cell lines from 6 manic-depressives, 7 unaffected relatives and 11 non-psychiatric controls were examined. Binding was reduced to less than half of control values in cell lines from 4 out of 6 manic-depressives and only 1 out of 18 unaffected relatives or controls. All the cell lines with reduced beta-adrenoceptor binding came from 3 families; members of the remaining 2 families showed normal binding. These findings suggest that genetic heterogeneity is present in manic-depressive disorder and that a beta-adrenoceptor defect may influence genetic susceptibility to the disorder.
Fault Tolerant BBMD in the BACnet/IP Protocol (2006)

Digital communication networks have become a core technology in advanced building automation systems. BACnet (building automation and control networks) is a standard data communication protocol designed specifically for building automation and control systems. BACnet provides BACnet/IP protocol for data communication through the Internet. BACnet/IP device uses BBMD (BACnet broadcasting management device) to deliver BACnet broadcast messages. In this study, we propose a fault tolerant BBMD in the BACnet/IP protocol. The fault tolerant BBMD improves the connectivity of BACnet/IP networks by inheriting the operation of the original BBMD to the backup BBMDs. The fault tolerant BBMD was designed to provide backward compatible with the original BACnet/IP devices. In this study, we implemented the fault tolerant BBMD and examined its validity using an experimental model.
Purification and sealing "in vacuum" of National Bureau of Standards standard samples of hydrocarbons (1946)

This report describes the procedure and apparatus used in the purification and sealing "in vacuum" of 19 National Bureau of Standards Standard Samples of h ydrocarbons, including 9 paraffins, 3 cycloparaffins, and 7 a lkylbenzenes.
libFLASM: a software library for fixed-length approximate string matching (2016)

Fixed-length approximate string matching is a generalisation of the classic approximate string matching problem. We present libFLASM, a free open-source C++ software library for solving fixed-length approximate string matching. The extensive experimental results presented here suggest that other applications could benefit from using libFLASM, and thus further maintenance and development of libFLASM is desirable.
Synthesis and Biological Activities of (<i>R</i>)-5,6-Dihydro-<i>N</i>,<i>N</i>-dimethyl-4<i>H</i>-imidazo[4,5,1-<i>ij</i>]quinolin-5-amine and Its Metabolites (1997)

The imidazoquinoline (R)-5,6-Dihydro-N,N-dimethyl-4H-imidazo[4,5,1-ij]quinolin-5-amine [(R)-3] is a potent dopamine agonist when tested in animals but surprisingly shows very low affinity in in vitro binding assays. When incubated with mouse or monkey liver S9 microsomes, (R)-3 is metabolized by N-demethylation and oxidation to (R)-5,6-dihydro-5-(methylamino)-4H-imidazo[4,5,1-ij]quinolin-2(1H) -one [(R)-6], intermediate metabolites, where N-demethylation to the imidazoquinoline (R)-4 and where oxidation to the imidazoquinolinone (R)-5 has taken place, are also observed in these incubates. A cross-species study on the metabolism of (R)-3 in vitro has shown large variations in the extent of metabolism from species to species. Imidazoquinolinones (R)-5 and (R)-6 have comparable activity to (R)-3 in animals and also show good dopaminergic (D2) and serotonergic (5HT1A) activities in binding assays. It is probable that these metabolites account at least in part for the in vivo activity found for (R)-3. Efficient syntheses for compounds 3-6 as single enantiomers from quinoline are presented together with information on the biological activities and metabolic stabilities of these compounds.
Trisomy 14 as a Sole Chromosome Abnormality Is Associated with Older Age, a Heterogenous Group of Myeloid Neoplasms with Dysplasia, and a Wide Spectrum of Disease Progression (2010)

Trisomy 14 is a rare recurrent cytogenetic abnormality in myeloid neoplasms; however, its clinicopathologic features have not been well described. We report the clinicopathologic, immunophenotypic, and molecular genetic features of 16 cases of myeloid neoplasms with isolated trisomy 14. Our results show that cases with isolated trisomy 14 encompass a heterogeneous group of myeloid neoplasms including myelodysplastic syndrome (MDS, 44%), myelodysplastic/myeloproliferative neoplasms (31%), and acute myeloid leukemia (25%). The patients are usually elder (median age 71 years), and there is a male predominance (82%). Multilineage dysplasia is noted in all cases. Oncogenic mutations of genes involved in cell proliferation and/or survival rarely occur. Compared with cases of MDS with diploid karyotype, patients of MDS with isolated trisomy 14 demonstrate a similar overall survival and rate of leukemia transformation.
MMTP — multimedia multiplexing transport protocol (2001)

Multimedia data has special requirements that are hard to be met on mobile hosts due to potentially low bandwidth and disruption due to host mobility. Such limited communication capabilities of mobile hosts can be offset by the simultaneous use of multiple link layer technologies. MMTP is a member of a suite of protocols that share the novel characteristic of aggregating bandwidth from multiple link-layer channels. The use of multiple channels to transport user data provides five key benefits: (1) a fatter pipe,(2) a fast feedback path, (3) the retransmission of selected lost messages, without delaying the playout of the data stream, (4) less sensitivity to minor bandwidth fluctuations on any one individual channel, and (5) smooth vertical handoffs for active data streams.
Merits and limitations of optimality criteria method for structural optimization (1993)

The merits and limitations of the Optimality Criteria (OC) method for the minimum weight design of structures subjected to multiple load conditions under stress, displacement and frequency constraints were investigated by examining several numerical examples. The examples were solved utilizing the OC design code that was developed for this purpose at the NASA Lewis Research Center. This OC code incorporates OC methods available in the literature with generalizations for stress constraints, fully utilized design concepts, and hybrid methods that combine both techniques. It includes multiple choices for Lagrange multiplier and design variable update methods, design strategies for several constraint types, variable linking, displacement and integrated force method analysers, and analytical and numerical sensitivities. On the basis of the examples solved, the optimality criteria for general application were found to be satisfactory for problems with few active constraints or with small numbers of design variables. However, the OC method without stress constraints converged to optimum even for large structural systems. For problems with large numbers of behaviour constraints and design variables, the method appears to follow a subset of active constraints that can result in a heavier design. The computational efficiency of OC methods appears to be similar to some mathematical programming techniques.