gebhart/patrepeval huggingface dataset:
Surface versus Molecular Siloxy Ligands in Well‐Defined Olefin Metathesis Catalysts: [{(RO)<sub>3</sub>SiO}Mo(NAr)(CH<i>t</i>Bu)(CH<sub>2</sub><i>t</i>Bu)] (2006)

Surface organometallic chemistry: Similar electronic properties of molecular and surface siloxy ligands in 1 m and 1 were revealed by a structural investigation with solid-state NMR spectroscopy and a reactivity study in olefin metathesis. Despite similar initial turnover frequencies, the silica-supported catalyst 1 is more stable than 1 m and allows it to achieve higher turnovers, thus showing the advantage of site isolation on surfaces.
A practical high-performance single-mode OTDR system for the long-wavelength region (1983)

A single-mode OTDR using a 1.3µm laser diode source and direct detection is reported. A dynamic range in excess of 26dB one-way is demonstrated.
Phase optimization of a kinoform by simulated annealing (1994)

The design of a kinoform by the use of simulated annealing is discussed. The simulated annealing process is applied to decrease the reconstruction noise and to adjust the phase distribution of the kinoform to the configuration of the recording device. A liquid-crystal spatial light modulator is used to display the kinoform. The reconstructed image of the optimized kinoform is found to be in good agreement with the computed image. Some experimental results obtained with a liquid-crystal spatial light modulator are presented. The phase quantization effect of the kinoform is discussed.
The impact of sterile inflammation in acute liver injury (2017)

Inflammation is one of the most critical factors for managing in-patient liver disease in a number of scenarios. More information is needed for both scientists and clinicians to develop rational treatments.
Distributed Spectrum Access in Cognitive Radio Network Employing Rateless Codes (2010)

In this paper, we investigate a channel selection algorithm for distributed spectrum access in a multichannel multiuser cognitive radio (CR) network employing rateless codes. Each secondary user (SU) uses rateless codes to increase the tolerance of interference either from other SUs or from the primary user (PU). However, due to the unpredictable arrival of PU and the inaccuracy of spectrum sensing, the more the number of channels each SU selects, the more interference to PU will be caused. With the purpose of protecting PU from interference, we derive the optimal number of channels selected by SU to maximize the throughput of SU. Both theoretical analysis and simulation results demonstrate the efficiency of the proposed algorithm.
On the Direct Generation of Ion-Photon Entanglement at Telecom Wavelengths in 171Yb+ (2020)

We explore entanglement between 171Yb+ ion and photon polarization at 1350 and 1650 nm. A cavity-mediated Raman interaction increases IR photon generation and collection. Driving S-D quadrupole transition maps coherences to the long-lived qubit.
Thermo- and Light-Responsive Polymers Containing Photoswitchable Azobenzene End Groups (2009)

Telechelic thermo- and light-responsive polymers based on poly(oligo(ethylene glycol) methyl ether methacrylate) P(OEGMA) with azobenzene functionalities at the end groups were synthesized. In a reversible addition−fragmentation chain transfer (RAFT) polymerization using a functionalized chain transfer agent (CTA) containing a pentafluorophenyl (PFP) activated ester, oligo(ethylene glycol) methyl ether methacrylate (OEGMA, Mn ∼ 300 g mol−1) could successfully be polymerized with good control over molecular weight, very high conversions, and narrow molecular weight distributions. Polymers derived from this CTA possessed an activated ester at the α-end of the polymer chain as well as a dithioester ω-terminus. The ω-dithioester group of each polymer chain could quantitatively be either removed with AIBN treatment or substituted with a PFP ester by using a modified diazo compound. As a consequence, a postmodifiaction of the telechelic reactive end groups was possible through a polymer analogous reaction with amino-functionalized azobenzene. P(OEGMA) polymers containing azobenzene end groups showed a reversible light- and temperature-controlled phase transition in water. Higher values for the lower critical solution temperature (LCST) were measured after irradiation of the aqueous polymer solutions due to the higher polarity of cis-azobenzene. The LCST differences between irradiated and nonirradiated solutions increased linearly upon the ratio of azobenzene units up to 4.3 °C.
Effects of Skin Surface Temperature on Photoplethysmograph (2014)

Photoplethysmograph (PPG) has been widely used to investigate various cardiovascular conditions. Previous studies demonstrated effects of temperature of the measurement environment; however, an integrated evaluation has not been established in environments with gradual air temperature variation. The purpose of this study is to investigate variations and relationships of blood pressure (BP), PPG and cardiovascular parameters such as heart rate (HR), stroke volume (SV), cardiac output (CO) and total peripheral resistance (TPR), by changing skin surface temperature (SST). Local mild cooling and heating was conducted on 16 healthy subjects. The results showed that local SST changes affected Finometer blood pressures (Finger BP), PPG components and TPR, but not the oscillometric blood pressure (Central BP), HR, SV and CO, and indicated that temperature must be maintained and monitored to reliably evaluate cardiovascular conditions in temperature-varying environments.
Feasibility of using sonic techniques to estimate in-situ stresses (1983)

This report presents the results of a three-year research effort to develop a technique for estimating in situ stresses by measuring stress-induced velocity anisotropy around a borehole. Relevant parameters required to make the estimate were identified and measured in the laboratory on a 35.6-cm cube of Nugget sandstone with a 10.2-cm diameter hole, under biaxial loading. The major technical obstacle to this study was the design of a transducer system for generating radially and tangentially polarized shear waves in a borehole configuration; the final design utilized a transducer/wedge assembly to generate refracted waves. Two pairs each of radially and tangentially polarized transducers were placed inside the 10.2-cm hole with displacement directions either parallel or perpendicular to the principal stress directions. With this configuration, relative travel times were measured by both a pulsed phase-locked loop technique and a cross correlation of digitized waveforms. Results from each technique show very good agreement, which indicates the validity of the approach. The uncertainty of timing was about 0.03 ..mu..s for an individual file. The biaxial test data were used to calculate the applied stress. The standard deviation of the differences between the calculated and applied stresses is 0.62 MPa for a stress level upmore » to 8.63 MPa. Based on the success of the laboratory measurement, the authors recommend that this research be pursued towards implementing a field procedure for estimating in situ stresses. 26 references.« less
Rain Gauge and Disdrometer Measurements during the Keys Area Microphysics Project (KAMP) (2003)

Four impact disdrometers and 27 tipping bucket rain gauges were operated at 11 different sites during August and September 2001, as part of the Keys Area Microphysics Project. The rain gauge and disdrometer network was designed to study the range dependency of radar calibration and rainfall verification in tropical storms. The gauges were collocated at eight sites, while three to five gauge clusters were deployed at three sites. Four disdrometers were also collocated with rain gauges. Overall the experiment was quite successful, although some problems did occur including flooding of gauge loggers, vandalism, and excessive noise at disdrometer sites. Both a south-to-north and east-to-west rainfall gradient was observed, whereby the gauges on the western and northern sides of the Lower Keys recorded more rainfall. Considering the campaign-long rain accumulations, collocated gauges agreed well, with differences generally less than 2%, except for one gauge cluster where the rain accumulation difference was attributed to individual gauge calibration error. The duration of a rain event was sensitive to the definition of a rain event, while this was not a factor in rain intensity. Only 7% of the rain events had significant storm total differences in excess of 2.5 mm. All of these events occurred at storm conditional mean and maximum rain rates higher than 5 and 50 mm h−1, respectively. Nevertheless, there were many other rain events for which the storm total differences were not significant in heavy rainfall. Combining most of the rain events from all collocated gauge sites, the correlation coefficient and mean percent absolute difference between the gauge storm totals were 0.99 and about 9%, respectively, on average. A rain gauge was typically able to measure rainfall within ±1.2 mm. As the storm total increased, the standard deviation of the rain total difference and correlation coefficient increased, while mean percent absolute difference decreased. Considering the gauge that recorded higher overall accumulation as the reference, and ignoring the natural variability of rainfall between collocated gauges, the gauge rainfall error was about 9%. Two disdrometers that were placed away from noise sources performed well and recorded higher rainfall accumulation than their collocated rain gauges.
A Bayesian network approach to power system asset management for transformer dissolved gas analysis (2008)

This paper presents a Bayesian network approach to dissolved gas analysis (DGA) problems for power transformers, which is easy to construct and able to interpret with formal probabilistic semantics. The effectiveness of the traditional IEEE/IEC coding scheme is validated using the proposed approach, which is also able to handle the missing codes in the traditional coding scheme. Firstly, the essential concepts of Bayesian networks are introduced, which are graphical representations of uncertain knowledge. The methodology of combining knowledge in the DGA domain with statistical data used to learn new knowledge is then described. A specific Bayesian network is designed to diagnose transformer faults based upon the IEEE/IEC DGA ratio method. An applicable solution to a transformer DGA problem, using the Bayesian network approach, is illustrated highlighting the potential of Bayesian networks. It can be seen from the results developed that the proposed approach is capable of tackling the DGA problem for power transformers as a supportive tool along with the IEEE/IEC DGA coding scheme.
Static analysis of exception handling in Ada (1993)

Abstract Since the signature of an Ada subprogram does not specify the set of exceptions that the subprogram can propagate, computing the set of exceptions that a subprogram may encounter is not a trivial task. This is a source of error in large Ada systems: for example, a subprogram may not be prepared to handle an exception propagated from another subprogram several layers lower in the call‐tree. In a large system, the number of paths in exceptional processing is so great that it is unlikely that testing will uncover all errors in inter‐procedural exception handling. Nor are compilers or code inspections likely to locate all such errors. Exception handling is an area where static analysis has a high potential payoff for systems with high reliability requirements. We discuss fundamental notions in computing exception propagation and describe an analysis tool that has proved to be effective in detecting inconsistencies in the exception‐handling code of Ada applications.
An optimized scheduling algorithm for cloud broker using adaptive cost model (2013)

The applications submitted to cloud middle ware have been distributed to the Cloud Service Providers(CSPs) based on the available CSPs in the cloud environment to categorize the service CSP providers with this work we are trying to introduce a concept to find the optimal CSP based on rough set based approach. IaaS provides a large amount of computational capacities to users in a flexible and efficient way. In the market various CSPs are available example Amazons elastic computing cloud offers virtual machine with 0.1 us dollars per hour similarly another cloud Google compute cloud offers virtual machine with 0.5 us dollars per hour then the cloud users need rating among the various CSPs. In this research work we have been proposing an approach to provide the rating of CSPs based on the internal performance of Datacenters and virtual machines. In present situation day-by-day number of cloud service providers have been increasing drastically. In this scenario existing service providers scheduling need a mechanism to find the optimal service providers information to Service request scheduling using this information SRS can allocate the service to the respective optimal service providers. In this paper we studied the problem of dynamic request allocation and scheduling for context aware application deployed in geographically distributed data centers forming a cloud.
The TRAINS 93 Dialogues. (1995)

This report describes a corpus of task-oriented dialogues set in the TRAINS domain. A user collaborates with a planning assistant to accomplish some task involving manufacturing and shipping goods in a railroad freight system. We include a description of the task, collection situation, and transcriptions conventions. The audio files, along with time-aligned word and phoneme transcriptions are available on CD-ROM from the Linguistic Data Consortium. Altogether, there are 98 dialogs included, collected using 20 different tasks and 34 different speakers. This amounts to six and a half hours of speech, about 5900 speaker turns, and 55000 transcribed words.
Design, fabrication and RF performances of two different types of piezoelectrically actuated Ohmic MEMS switches (2005)

In this paper, we have proposed, fabricated and characterized piezoelectrically actuated RF MEMS (radio-frequency micro-electro-mechanical system) switches. They have been designed to operate at a low operation voltage for advanced mobile/wireless handset applications. The proposed switches are largely composed of piezoelectric cantilever actuators with an Au contact electrode and CPW (coplanar wave) transmission lines suspended over the substrate. Two different types of RF MEMS switches have been suggested to find the better geometry. One has the structure of one single piezoelectric cantilever and a contact electrode attached to its edge with three hinges (type-A), and the other contains four piezoelectric cantilevers that are symmetrically combined through each hinge to support a centered contact electrode (type-B). The two different fabricated (type-A and type-B) RF MEMS switches have insertion losses of −0.22 and −0.23 dB at an operation voltage of 2.5 V and a frequency of 2 GHz, respectively. Although the difference in insertion loss is trivial, there exist different dependences of insertion loss on applied voltage between them. The insertion losses of type-A switches are changed with varying operation voltage because the touching area between the contact electrode and the signal transmission lines is variable. Meanwhile, the type-B switches show nearly constant insertion losses regardless of operation voltage. The type-A and type-B switches have isolation values of −40.8 and −42.5 dB at a frequency of 2 GHz, respectively.
Limonoid glucosides in orange juices by HPLC (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLimonoid glucosides in orange juices by HPLCZareb Herman, Chi H. Fong, Peter Ou, and Shin HasegawaCite this: J. Agric. Food Chem. 1990, 38, 9, 1860–1861Publication Date (Print):September 1, 1990Publication History Published online1 May 2002Published inissue 1 September 1990https://pubs.acs.org/doi/10.1021/jf00099a016https://doi.org/10.1021/jf00099a016research-articleACS PublicationsRequest reuse permissionsArticle Views387Altmetric-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
Tapered image charge detector for measuring velocity distributions of submicrometer particle scattering (2020)

A novel detector for measuring the post-impact velocities (trajectory and speed) of charged submicrometer particles is presented. A stack of tapered cylindrically symmetric electrodes connected to a set of image charge detection circuits is used in conjunction with an image-charge-sensitive target to measure the incident velocity and scattered trajectories of charged particles following impact with the target. This particle detector is used in conjunction with a mass, charge, and energy-selected source of collimated charged particles. Polystyrene latex spheres were used to characterize the performance of the detector, and examples of scattering trajectories are analyzed to demonstrate detector functionality. Measurements of the coefficient of restitution for 500 nm diameter tin particles are also reported and compared with previous measurements performed with a simpler image-charge detector. Finally, the angular distribution for 500 nm tin particles scattering from highly polished molybdenum at an incident velocity of 150 m/s is reported.
Optmum design of low‐voltage and high‐efficiency GaAs power module (1994)

Abstract A highly compact GaAs power module designed for the portable analog telephone system has been developed [1]. the module is a two‐stage GaAs power amplifier operable at 4.7 V and is capable of delivering an output power of 32.2 dBm with a power‐added efficiency of 65 percent and harmonic levels less than −40 dBc at 900 MHz. Parameter extraction from two GaAs MESFETs (first‐ and second‐stage FETs) operable at 4.7 V, module design employing a front stage FET whose output characteristics are optimized at a load of 50 ω, and the optimization of harmonic control circuit suppressing the harmonics and improving the drain efficiency are performed by simulation and the obtained results are confirmed by experiments.
Increased Expression of Insulin-like Growth Factor-II Messenger RNA–Binding Protein 1 Is Associated with Tumor Progression in Patients with Lung Cancer (2007)

These results suggest that IMP-1 expression is likely to play important roles in lung cancer development and progression, and that IMP-1 is a prognostic biomarker and a promising therapeutic target for lung cancer.
Factor structure of Bech's version of the Brief Psychiatric Rating Scale in Brazilian patients (2002)

The objective of the present study was to evaluate the factor structure of Bech's version of the Brief Psychiatric Rating Scale (BPRS), translated into Portuguese. The BPRS was administered to a heterogeneous group of psychiatric inpatients (N = 98) and outpatients (N = 62) in a University Hospital. Each patient was evaluated from one to eight times. The interval between consecutive interviews was one week for the inpatients and one month for the outpatients. The results were submitted to factorial analysis. The internal consistency of the total scale and of each factor was also estimated. Factorial analysis followed by normalized orthogonal rotation (Varimax) yielded four factors: Withdrawal-Retardation, Thinking Disorder, Anxious-Depression and Activation. Internal consistency measured by Cronbach's alpha coefficient ranged from 0.766 to 0.879. The data show that the factor structure of the present instrument is similar to that of the American version of the BPRS which contains 18 items, except for the absence of the fifth factor of the latter scale, Hostile-Suspiciousness.
Aspects of herbicide activity and persistence under low level polyethylene covers (1989)

Summary In an experiment prepared in autumn, weed numbers were not affected by covering the soil with clear perforated polyethylene. Weed growth was enhanced, however, and the fresh weight at the time of polyethylene removal in spring was more than three times greater on the covered compared with the uncovered areas. In a similar experiment prepared in spring, covering with perforated polyethylene increased weed numbers by a factor of two and weed fresh weight by a factor of seven. The performance of a number of herbicides used in carrots, in terms of percentage reduction in weed number and weed fresh weight, was similar under covers and in the open. The most effective weed control was achieved with broad‐spectrum herbicide treatments, particularly under the polyethylene, since surviving weed seedlings grew rapidly in the protected environment. When weed control was good, covering enhanced carrot yield. Measurement of the distribution of herbicide residues in the soil demonstrated that persistence was increased and movement in the soil decreased by covering with polyethylene.
Cathelicidin LL‐37: a defense molecule with a potential role in psoriasis pathogenesis (2012)

Epidermal keratinocytes produce and secrete antimicrobial peptides (AMPs) that subsequently form a chemical shield on the skin surface. Cathelicidins are one family of AMPs in skin with various further immune functions. Consequently, dysfunction of these peptides has been implicated in the pathogenesis of inflammatory skin disease. In particular, the cathelicidin LL-37 is overexpressed in inflamed skin in psoriasis, binds to extracellular self-DNA released from dying cells and converts self-DNA in a potent stimulus for plasmacytoid dendritic cells (pDCs). Subsequently, pDCs secrete type I interferons and trigger an auto-inflammatory cascade. Paradoxically, therapies targeting the vitamin D pathway such as vitamin D analogues or UVB phototherapy ameliorate cutaneous inflammation in psoriasis but strongly induce cathelicidin expression in skin at the same time. Current evidence now suggests that self-DNA present in the cytosol of keratinocytes is also pro-inflammatory active and triggers IL-1β secretion in psoriatic lesions through the AIM2 inflammasome. This time, however, binding of LL-37 to self-DNA neutralizes DNA-mediated inflammation. Hence, cathelicidin LL-37 shows contrasting roles in skin inflammation in psoriasis and might serve as a target for novel therapies for this chronic skin disease.
Murine interleukin 1 stimulates α<sub>2</sub>‐macroglobulin synthesis in rat hepatocyte primary cultures (1985)

In rat hepatocyte primary cultures recombinant interleukin 1 was found to stimulate alpha 2-macroglobulin synthesis, whereas albumin synthesis was decreased. Although recent experiments gave evidence that a hepatocyte-stimulating factor distinct from interleukin 1 must exist, we conclude that interleukin 1 exerts a direct effect on hepatocytes by inducing acute-phase protein synthesis.