gebhart/patrepeval huggingface dataset:
Complete proton and carbon-13 NMR assignment of polycyclic aromatic fluoranthenes by long-range optimized homo- and heteronuclear correlation spectroscopy (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplete proton and carbon-13 NMR assignment of polycyclic aromatic fluoranthenes by long-range optimized homo- and heteronuclear correlation spectroscopyBongsup P. Cho and Ronald G. HarveyCite this: J. Org. Chem. 1987, 52, 26, 5679–5684Publication Date (Print):December 1, 1987Publication History Published online1 May 2002Published inissue 1 December 1987https://doi.org/10.1021/jo00235a006RIGHTS & PERMISSIONSArticle Views180Altmetric-Citations14LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (611 KB) Get e-Alerts Get e-Alerts
Stress-induced annihilation of Stone–Wales defects in graphene nanoribbons (2012)

Abstract Stress arising from structural or thermal misfit impacts the reliability of graphene-related devices. The deformation behaviour of graphene nanoribbons (GNRs) with Stone–Wales defects under stress studied by molecular dynamics shows that nearly all the SW defects annihilate via inverse rotation of C–C bonds. The fracture stress of defective GNRs is comparable to that of perfect ones and similar to mechanical annealing observed from bulk metals. It is a competition between bond rotation and fracture and depends on the strain rate and temperature. At a lower strain rate, such as 10 −5 ps −1 , the rotation velocity of C–C bonds of 4.2 Å ps −1 is three orders of magnitude larger than the velocity of the collective movement of atoms (1.2 × 10 −3 Å ps −1 ). There is enough time for the C–C bond rotation to respond to the external load, but it becomes more difficult at higher strain rates. This stress-induced SW defect annihilation can be enhanced at higher temperatures because of enhanced exchange of atomic momentum and energy. The results reveal the dominant influence of SW defects on the mechanical properties of two-dimensional materials.
Thermo-sensitive microgels as in-situ sensor for temperature measurement in optoelectronic tweezers (2010)

We report on the application of thermo-sensitive microgels as in situ temperature sensor for phototransistor-based optoelectronic tweezers (Ph-OET) device. The thermo-sensitive microgels are cross-linked polymeric particles that swell or shrink reversibly in response to changes in the surrounding temperature. The technique has an accuracy of 0.054°C and a spatial resolution of 25 ¿m. Temperature rise in Ph-OET is measured under various operating conditions, and the maximum temperature increase is measured at 2.6°C. The results show cell damage can be prevented with adequate heat sink. When physiological temperature is required, the applied bias should be kept low (10 V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">pp</sub> ), or smaller optical patterns should be used. The technique demonstrated here can be extended to other microfluidic devices.
Organized proteomic heterogeneity in colorectal cancer liver metastases and implications for therapies (2013)

The proteome heterogeneity of human CRC liver metastases has a distinct, organized pattern. This particular hallmark can now be used as part of the strategy for developing rational therapies based on multiple sets of targetable antigens.
A sustainable and secure load management model for green cloud data centres (2023)

The massive upsurge in cloud resource demand and inefficient load management stave off the sustainability of Cloud Data Centres (CDCs) resulting in high energy consumption, resource contention, excessive carbon emission, and security threats. In this context, a novel Sustainable and Secure Load Management (SaS-LM) Model is proposed to enhance the security for users with sustainability for CDCs. The model estimates and reserves the required resources viz., compute, network, and storage and dynamically adjust the load subject to maximum security and sustainability. An evolutionary optimization algorithm named Dual-Phase Black Hole Optimization (DPBHO) is proposed for optimizing a multi-layered feed-forward neural network and allowing the model to estimate resource usage and detect probable congestion. Further, DPBHO is extended to a Multi-objective DPBHO algorithm for a secure and sustainable VM allocation and management to minimize the number of active server machines, carbon emission, and resource wastage for greener CDCs. SaS-LM is implemented and evaluated using benchmark real-world Google Cluster VM traces. The proposed model is compared with state-of-the-arts which reveals its efficacy in terms of reduced carbon emission and energy consumption up to 46.9% and 43.9%, respectively with improved resource utilization up to 16.5%.
Nanoporous microspheres: from controllable synthesis to healthcare applications (2013)

Multiscale nanoporous microspheres have attracted great research interest in multiple fields, such as separation, catalysis, sensors, energy storage, tissues engineering and drug release, due to their excellent permeability, high surface area, low density and stable mechanical properties. In this review, well-defined nanoporous microspheres ranging from inorganic to organic nanoporous microspheres are presented and categorized. First, we classify nanoporous microspheres into three main structural categories that include an "opened" nanoporous microsphere, a "closed" nanoporous microsphere and surface nanoporous microspheres. The corresponding approaches to fabricating these nanoporous microspheres are further presented, which mainly include hydrothermal/solvothermal synthesis, thermal decomposition, suspension polymerization, dispersion polymerization, precipitation polymerization, emulsion polymerization, multiple emulsion-solvent evaporation, template and microfluidic methods. In addition, our discussions focus on the healthcare applications of nanoporous microspheres, such as bioseparation, drug control and release and tissue engineering. This review will be expected to provide a comprehensive guide to the design and synthesis of functional nanoporous microspheres that closely relate to healthcare applications.
SEX ATTRACTION SPECIFICITY IN THE TORTRICIDAE (1973)

Sex attraction by pheromones seems general among the Tortricidae. Using virgin live females, female gland extracts or synthetic chemicals similar to known tortricid pheromones, it is shown that the species are attracted very specifically to their own pheromones. However, because of differences in seasonal cycles, circadian rhythms and secondary chemicals, many species may use the same primary attractant, without much interspecific attraction. There is some correlation between taxonomic groupings and pheromone structures. Résumé SPÉCIFICITÉ DE L'ATTRACTION SEXUELLE CHEZ LES TORTRICIDAE L'attraction sexuelle par les phéromones semble être la règle chez les Tortricidae. L'attraction interspécifique a éTÉ étudiée dans la nature au moyen de femelles vierges vivantes, et de produits chimiques synthétiques semblables aux phéromones de Tortricidae dont la structure chimique a éTÉ élucidée. En général, les mâles d'une espèce donnée sont attirés très spécifiquement par un produit ou par un mélange qui, à leur égard, a valeur de phéromone. Cependant, le même produit attractif est souvent utilisé par plusieurs espèces. Il existe dans ce cas des différences de cycle saisonnier, de rythme circadien ou de produit chimique additionnel servant à l'attraction, de sorte que l'attraction interspécifique demeure un évènement rare. On observe une corrélation entre les groupements taxonomiques et la structure chimique des phéromones: dans la sous‐famille des Olethreutinae, il y a surtout des alcools insaturés à 12 carbones et leurs acetates; dans la sous‐famille des Tortricinae, surtout des alcools à 14 carbones et leurs acetates, généralement avec une double liaison en position 11.
ACS NEWS (2003)

RETURN TO ISSUEPREVACS NewsNEXTACS NEWSCommittee On Ethics DescribedCORINNE A. MARASCOCite this: Chem. Eng. News 2003, 81, 16, 60Publication Date (Print):April 21, 2003Publication History Published online13 November 2010Published inissue 21 April 2003https://pubs.acs.org/doi/10.1021/cen-v081n016.p060ahttps://doi.org/10.1021/cen-v081n016.p060aacs-newsACS PublicationsCopyright © 2003 American Chemical Society. This publication is available under these Terms of Use. This publication is free to access through this site. Learn MoreArticle Views77Altmetric-Citations-LEARN 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 PDF (539 KB) Get e-Alerts
Experimental test of a prototype gravitational radiation detector employing an active cavity laser sensor (1986)

A prototype gravitational radiation detector which uses two small He-Ne lasers in a heterodyne arrangement for displacement sensing has been built and tested. Operation of the system at the theoretical noise limit determined by spontaneous emission has been achieved. Above 2 kHz, the noise has a flat spectrum and is equivalent to displacements of 3*10-15 cm Hz-12/. It is shown that small active-cavity systems can be competitive with long-baseline Michelson interferometers when the high-quality mirrors and high-gain amplifying media are used.
Fluid-Optic Interactions. (1997)

Abstract : This report describes fluid optic interaction research at the University of Notre Dame. This research has been extremely productive in both developing a new, high bandwidth (100 KHz), time resolved wavefront sensor and in terms of producing new information about the nature of the effect on an optical signal's wavefront of propagation through a turbulent, optically active flow field. During the course of the research, a numerical point vortex method for simulating shear flows was developed and played a crucial role in developing the new wavefront sensor and interpreting the results of wavefront time series obtained by using the sensor to investigate optical propagation through low speed jets and high speed shear layers. Wavefronts were collected for propagation through a two dimensional heated jet; the heated jet facility was developed specifically for this research. The spatial and temporal frequency content of these wavefronts was extensively analyzed leading to a new understanding of the nature of Aero-Optical phenomena. Further, the heated jet wavefronts were used to study the problems involved in attempting to correct Aero-Optically distorted wavefronts using adaptive optic techniques. The new sensor was also used to collect optical wavefronts due to propagation through a Mach 0.8 compressible shear layer similar to those that are encountered in aircraft flight conditions.
Enzyme Activity Profiles during Fruit Development in Tomato Cultivars and Solanum pennellii (2010)

Enzymes interact to generate metabolic networks. The activities of more than 22 enzymes from central metabolism were profiled during the development of fruit of the modern tomato cultivar Solanum lycopersicum 'M82' and its wild relative Solanum pennellii (LA0716). In S. pennellii, the mature fruit remains green and contains lower sugar and higher organic acid levels. These genotypes are the parents of a widely used near introgression line population. Enzymes were also profiled in a second cultivar, S. lycopersicum 'Moneymaker', for which data sets for the developmental changes of metabolites and transcripts are available. Whereas most enzyme activities declined during fruit development in the modern S. lycopersicum cultivars, they remained high or even increased in S. pennellii, especially enzymes required for organic acid synthesis. The enzyme profiles were sufficiently characteristic to allow stages of development and cultivars and the wild species to be distinguished by principal component analysis and clustering. Many enzymes showed coordinated changes during fruit development of a given genotype. Comparison of the correlation matrices revealed a large overlap between the two modern cultivars and considerable overlap with S. pennellii, indicating that despite the very different development responses, some basic modules are retained. Comparison of enzyme activity, metabolite profiles, and transcript profiles in S. lycopersicum 'Moneymaker' revealed remarkably little connectivity between the developmental changes of transcripts and enzymes and even less between enzymes and metabolites. We discuss the concept that the metabolite profile is an emergent property that is generated by complex network interactions.
iPod and iTunes For Dummies (2007)

The fun and easy way to make the most of your iPod and the iTunes store iPods have totally revolutionized the way we play music, videos, and TV shows. This handy guide is written by veteran For Dummies author Tony Bove and will have you off and running with your iPod in no time. Youll get set-up advice and help loading your iPod with tunes, podcasts, movies, and more. Got an iPod touch or iPhone? Learn to use the multitouch interface, add photos, surf the Web, manage your e-mail and calendar, and even play games. Introduces the different iPod models, including iPod touch, iPod classic, iPod nano, and iPod shuffle Explains how to set up iTunes, shop at the iTunes store, and import music, videos, and podcasts Shows how to manage photos, videos, synchronize devices with iTunes, burn CDs from iTunes, play iPod content, and play music on your home stereo, TV, or car stereo Includes tips on working with Genius to create playlists, resetting and restoring your iPod, troubleshooting, and organizing and sharing content Dont wait another minute to start enjoying your new iPod! Start enjoying everything your iPod can offer with the latest edition of iPod & iTunes For Dummies today.
Average fade duration for amplify-and-forward relay networks in log-normal fading (2013)

We analyze the level crossing rate and the average fade duration of multihop amplify-and-forward relay networks. We obtain exact closed-form expressions for these statistics when the individual links are affected by log-normal fading with arbitrary autocorrelation. Using this analytical framework we characterize the dynamics of the equivalent multihop channel gain for different correlation models, and study the influence of sampling time, the number of hops and the relay mobility in the investigated scenarios.
Long-term Remission of Kaposi's Sarcoma Following Foscarnet Treatment in HIV-infected patients (1994)

Five patients with HIV-associated Kaposi's sarcoma (epidemic KS) were treated with foscarnet 180 mg/kg/day i.v. for 10 days. Four of them suffered from severe immunodeficiency with CD4 cell counts below 30 × 106/l. Three of the patients went into long-term remission of KS. One patient was free of relapse for 12 months and 2 patients are still in remission after an observation period of 13 and 20 months respectively. The results suggest a possible role of foscarnet in the treatment of epidemic KS.
A 512 kB MONOS type flash memory module embedded in a microcontroller (2004)

We present a 512 kB MONOS type flash memory module embedded in a microcontroller fabricated with a 0.18 /spl mu/m CMOS process. Our new memory cell structure enables the whole read path in the module to be composed of low voltage transistors that are the same as those used in the CPU core, and therefore achieves compact layout of peripheral circuits. The module achieves 34 MHz random access read operation. The measured program time and erase time for a 64 kB block were less than 4 ms and less than 11 ms, respectively. The area of the 512 kB module is 5.4 mm/sup 2/.
A robust pitch detection algorithm for speech signals in a practical noisy environment (2007)

In this paper, a robust pitch detection algorithm is proposed for speech signals severely corrupted by a non-stationary noise. Using low-frequency band of noisy speech, an effective noise reduction approach is first formulated for power spectral subtraction to track the time-variation of the non-stationary noise prior to pitch detection. Then, a new normalized circular difference function of the enhanced speech, which almost conquers the constraint of overlapping between the first formant and the pitch, is proposed. Simulation results using the Keele reference database demonstrate a better efficacy of the proposed algorithm relative to some of the existing methods in a practical multi-talker babble noise environment.
Immunohistochemical and cytochemical localization of the somatostatin receptor subtype sst1 in the somatostatinergic parvocellular neuronal system of the rat hypothalamus. (1998)

Somatostatin is known to mediate its actions through five G-protein-coupled receptors (sst1-sst5). We have studied the expression of the sst1 receptor in the rat hypothalamus by using a subtype-specific antiserum. In Western blotting, the antiserum reacted specifically with a band with an apparent molecular weight of 80,000 in membranes prepared from hypothalamic tissue. The localization of the sst1 receptor was investigated by immunohistochemistry in hypothalamus sections. Additionally, an immunofluorescent double-labeling was performed for the sst1 receptor and somatostatin. Light microscopy revealed that the sst1 receptor is located in perikarya and nerve fibers in the rostral periventricular area surrounding the third ventricle as well as in nerve fibers projecting from the perikarya to the external layer of the median eminence. In these neuronal structures, sst1 immunoreactivity was found to be colocalized with somatostatin. Furthermore, the location of sst1 receptors was studied by immunoelectron microscopy in the median eminence. In the external layer, receptor immunoreactivity was confined to nerve terminals. Immunoreactive nerve terminals were seen to make synapse-like junctions with other both stained and unstained nerve terminals. Thus, the sst1 receptor is present in the classic somatostatinergic hypothalamic parvocellular system inhibiting hormone secretion from the anterior pituitary gland. These findings indicate that the sst1 receptor may act as an autoreceptor and inhibit the release of somatostatin from periventricular neurons projecting to the median eminence.
A 5-level high efficiency low cost Hybrid Neutral Point Clamped transformerless inverter for grid connected photovoltaic application (2018)

With the increase in the level of solar energy integration into the power grid, there arises a need for highly efficient multilevel transformerless grid connected inverter which is able to inject more power into the grid. In this paper, a novel 5-level Hybrid Neutral Point Clamped transformerless inverter topology is proposed which has no inherent ground leakage current. The proposed inverter is analyzed in detail and its switching pattern to generate multilevel output is discussed. The proposed inverter is compared with some popular transformerless inverter topologies. Simulations and experiments results confirm the feasibility and good performance of the proposed inverter.
Kinematic and dynamic vehicle models for autonomous driving control design (2015)

We study the use of kinematic and dynamic vehicle models for model-based control design used in autonomous driving. In particular, we analyze the statistics of the forecast error of these two models by using experimental data. In addition, we study the effect of discretization on forecast error. We use the results of the first part to motivate the design of a controller for an autonomous vehicle using model predictive control (MPC) and a simple kinematic bicycle model. The proposed approach is less computationally expensive than existing methods which use vehicle tire models. Moreover it can be implemented at low vehicle speeds where tire models become singular. Experimental results show the effectiveness of the proposed approach at various speeds on windy roads.
The Effect of γ-Ray Irradiation on Optical Properties of Single Photon Sources in 4H-SiC MOSFET (2020)

We investigated the effects of γ-ray irradiation to single photon sources (SPSs) embedded in 4H-SiC metal-oxide-semiconductors field-effect transistors (MOSFETs). After the γ-ray irradiation, the number of SPSs was temporarily increased. However, the ratio of unstable SPSs was increased with increasing the radiation dose, and such unstable ones gradually disappeared. Finally, the density of the SPSs nearly recovered that before the irradiation. We discuss a possible explanation on these phenomena in terms of interactions between mobile hydrogen atoms and interface defects.
Ring‐Opening Metathesis Polymerization of Biomass‐Derived Levoglucosenol (2019)

Abstract The readily available cellulose‐derived bicyclic compound levoglucosenol was polymerized through ring‐opening metathesis polymerization (ROMP) to yield polylevoglucosenol as a novel type of biomass‐derived thermoplastic polyacetal, which, unlike polysaccharides, contains cyclic as well as linear segments in its main chain. High‐molar‐mass polyacetals with apparent weight‐average molar masses of up to 100 kg mol −1 and dispersities of approximately 2 were produced despite the non‐living/controlled character of the polymerization due to irreversible deactivation or termination of the catalyst/active chain ends. The resulting highly functionalized polyacetals are glassy in bulk with a glass transition temperature of around 100 °C. In analogy to polysaccharides, polylevoglucosenol degrades slowly in an acidic environment.
Molecular Mechanisms of Iron Transport (1996)

The homeostasis of iron transport and absorption represents a critical mechanism to maintain the necessary physiologic balance of this essential nutrient. Recent advances in our understanding of the molecular mechanisms involved in the transport of iron and its membrane translocation are reviewed. Translational and transcriptional control mechanisms that have been characterized to play a role in iron homeostasis are also discussed.