gebhart/patrepeval huggingface dataset:
Atomic Absorption, Atomic Emission, and Flame Emission Spectrometry (1998)

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTAtomic Absorption, Atomic Emission, and Flame Emission SpectrometryKenneth W. Jackson and Shijun LuView Author Information Wadsworth Center, New York State Department of Health, and School of Public Health, State University of New York, Albany, New York 12201-0509 Cite this: Anal. Chem. 1998, 70, 12, 363–384Publication Date (Web):May 9, 1998Publication History Published online9 May 1998Published inissue 1 June 1998https://pubs.acs.org/doi/10.1021/a1980012ghttps://doi.org/10.1021/a1980012greview-articleACS PublicationsCopyright © 1998 American Chemical SocietyRequest reuse permissionsArticle Views1004Altmetric-Citations22LEARN 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 SUBJECTS:Anions,Anode materials,Carbon,Mercury,Palladium Get e-Alerts
Digital communications protocols in the satellite environment (1997)

Examines why terrestrial protocols suffer so badly in the satellite environment and offers suggestions as to what might be done to overcome the problems. The paper considers the issues with respect to TCP/IP and looks also at the intense interaction observed between some popular end user applications, the protocol and the satellite environment. The lesson to be learnt is that no element of the system may be viewed in isolation. To do so will inevitably result in a catastrophic reduction in performance. The paper first briefly examines the TCP/IP protocol and looks at the performance of the protocol over a typical VSAT link without any optimisation being made for the VSAT environment. We then look at two possible approaches to improving the situation. In the first we find that significant improvements may be made by tuning some of the protocol parameters to suit the satellite link, a simple step, but one that is often ignored and may be difficult if the end users are not within your control. The second step, more along the lines of a gedanken experiment, involves making slight modifications to the TCP/IP protocol. Since it is unlikely that the Internet Engineering Task Force, who control the evolution of the TCP/IP protocol, would ever consider making changes to the TCP/IP protocol stack solely for the benefit of satellite users, this remains a tantalising impossibility. Finally we look at what might be achieved by means of protocol encapsulation, protocol spoofing, protocol enhancement etc., which give valuable pointers to the possibilities (and problems) of integrating terrestrial/satellite protocols. (7 pages)
A Mitotic Septin Scaffold Required for Mammalian Chromosome Congression and Segregation (2005)

Coordination of cytokinesis with chromosome congression and segregation is critical for proper cell division, but the mechanism is unknown. Here, septins, a conserved family of polymerizing guanosine triphosphate-binding proteins, localized to the metaphase plate during mitosis. Septin depletion resulted in chromosome loss from the metaphase plate, lack of chromosome segregation and spindle elongation, and incomplete cytokinesis upon delayed mitotic exit. These defects correlated with loss of the mitotic motor and the checkpoint regulator centromere-associated protein E (CENP-E) from the kinetochores of congressing chromosomes. Mammalian septins may thus form a mitotic scaffold for CENP-E and other effectors to coordinate cytokinesis with chromosome congression and segregation.
Antibiotic Properties of Thiarubrine A, a Naturally Occurring Dithiacyclohexadiene Polyine (1985)

Thiarubrine A, a dithiacyclohexadiene polyine from the roots of Chaenactis douglasii, exhibits strong antifungal activity towards Candida albicans and Aspergillus fumigatus at concentrations comparable to those of amphotericin B. It also exhibits cytotoxic activity towards Escherichia coli and Bacillus subtilis and the nematode Coenorhabditis elegans. A thiophene derived from thiarubrine A was shown to be phototoxic, requiring UV-A light for biological activity. The effects of thiarubrine A, thiophene A and α-terthienyl on the above organisms, as well as on CHO cells, were compared.
Stimulation of melanogenesis in a human melanoma cell line by retinoids. (1980)

Retinoic acid was found to be a potent stimulant of pigmentation in human Hs939 melanoma cells. Exposure to 1 microM retinoic acid for longer than four days caused both a decrease in the rate of cell proliferation and a concomitant increase in melanogenesis. These effects of retinoic acid progressed lin-early in a time-dependent and a dose-dependent fashion such that at the end of a seven-day treatment cell growth was inhibited by approximately 65%, and both melanin content and tyrosinase activity increased more than three-fold over the control. Interpolation of the dose-response curves indicated that 3 nM retinoic acid would cause half-maximal melanogenesis stimulation. No elevation in the level of cyclic adenosine 3':5'-monophosphate could be detected in the melanoma cells following various periods of exposure to retinoic acid, and the cells were unresponsive to alpha-melanocyte-stimulating hormone. In the presence of the tyrosinase inhibitor phenylthiocarbamate, retinoic acid was capable of inhibiting cell proliferation without enhancing melanin synthesis. The tumor promoter phorbol myristate acetate did not affect either the proliferation or the differentiation of the Hs939 melanoma cells. However, the enhancement of melanogenesis by 1 microM retinoic acid was inhibited by 66% in the presence of 0.1 microM phorbol myristate acetate. The tumor promoter did not reverse the growth-inhibitory effect of retinoic acid. Phorbol, a non-tumor promoter, was effective. Other retinoids, such as 13-cis-retinoic acid, retinyl acetate, nd the trimethylmethoxyphenyl analog of retinoic acid, also inhibited the proliferation and enhanced melanin production in the Hs939 cells. In contrast, retinyl palmitate, the phenyl analog of retinoic acid, and the pyridyl analog of retinoic acid were ineffective.
18 GHz all-optical frequency locking and clock recovery using a self-pulsating two-section DFB-laser (1994)

The suitability of self-pulsating multi-section DFB lasers for high speed signal processing is shown. First, the locking behaviour to an injected 17.6 GHz signal with sinusoidal modulation is investigated and a locking range of 220 MHz is estimated using a modulated optical power of 7 μW. Second, all-optical clock recovery is demonstrated at 17.6 Gbit/s by replacing the sinusoidal modulation by an optical bit pattern with a peak-power of 150 μW.
Interaction of the Nonintercalative Antitumour Drugs SN-6999 and SN-18071 with DNA: Influence of Ligand Structure on the Binding Specificity (1987)

Binding to DNA's of the non-intercalative ligands SN-6999 and SN-18071 has been studied by means of circular dichroism, UV absorption, thermal melting and for SN-6999 by viscosity measurements. Both antitumour drugs show a preference for dA.dT rich DNA's, but the base pair selectivity of SN-18071 is lower as indicated by some affinity to dG.dC containing duplex DNA. The dA.dT base pair specificity of SN-6999 is comparable to that of netropsin. It forms very stable complexes with dA.dT containing duplex DNA and competes with netropsin binding on DNA. The ligands SN-18071 and pentamidine are totally released from their complexes with poly(dA-dT).poly(dA-dT) by competitive netropsin binding. The results demonstrate that hydrogen bonding capacity of the ligand in addition to other factors strongly contribute to the base sequence specificity in the recognition process of the ligand with DNA. A binding model of SN-6999 with five dA.dT pairs in the minor groove of B-DNA is suggested.
ACUTE ARREST OF CEREBRAL CIRCULATION IN MAN (1943)

Numerous investigations have been concerned with the effects of acute arrest of cerebral circulation in animals. The earlier workers<sup>1</sup>studied the effects of ligation of the cerebral arteries. More recently, observations have been made on the effects of temporary occlusion of the chief cerebral arteries<sup>2</sup>and of temporary cessation of the heart beat.<sup>3</sup>Using the method of occlusion of the chief cerebral arteries, Sugar and Gerard<sup>4</sup>measured the survival time for different regions of the cat brain by the persistence of spontaneous action potentials. A careful study of the changes in function and structure of the brain of the cat resulting from temporary occlusion of the pulmonary artery was reported on by Weinberger, Gibbon and Gibbon.<sup>5</sup>These methods involved one or another of the following complications: anesthesia; surgical procedures at the time of arrest of circulation in the brain; incomplete arrest of circulation as a
Realization of Self-Aligned Back-Contact Solar Cells (2008)

Among high-efficiency cells, interdigitated back-contact (IBC) solar cells present many advantages over conventional structures. In most cases, fabrication processes involving many masks and alignments are needed. In this paper, we present an alternative approach to simplify the IBC solar cell fabrication process. Here, only one mask without alignment was used to define the total solar cell. Separation between emitter and base comb is reached by cantilevers which prevent interconnections during Al deposition. Cantilevers are formed by a low-cost chemical etching solution. With this process, we have obtained cells with a fill factor of 77%.
High power arcjet (1990)

The activities on the development of the high power arc jet HIPARC, the thrust balance, and plasma diagnostic probes are discussed. Modifications of the HIPARC design and a synopsis of the materials used are given. Further experimental results with the TT30 thruster in the 50 kW range are presented. Some first calibration measurements of the thrust balance are also included. Progress concerning the development of plasma diagnostic devices is documented.
A Highly Step‐Economical Synthesis of Dictyostatin (2013)

Less is more: An efficient synthesis of the anti-mitotic macrolide dictyostatin proceeds with a longest linear sequence of 14 steps, and allows the rapid production of multi-gram quantities of each of the three fragments from which the natural product is assembled in just four or five steps. The key step is a scalable one-step synthesis of the C(12)–C(14) and C(20)–C(22) stereotriads.
Evaluation of a System for the Imposition of Plant Water Stress (1985)

A system which imposes a range of water stress levels was developed and evaluated. Water stress was controlled by employing a screen to suspend roots above a water column of known height. Levels of water stress were imposed by changing water column height and/or hydraulic conductivity of the medium in the column. The system was evaluated in a series of growth chamber experiments in which sunflowers (Helianthus annuus L. cv NK894) were given three levels of water availability for a period of 3 weeks. Third leaf midday water potentials at the end of the trials ranged from -0.73 +/- 0.04 to -2.35 +/- 0.17 megapascals in waterstressed plants compared to -0.40 +/- 0.02 megapascals for control plants. Repetition of experiments showed no statistical differences in leaf water potentials, plant leaf areas, or plastochron indices between trials. During the experiments, the severity and pattern of water stress developments was related to both water column height and conductivity of the medium. Control plants exhibited normal diurnal water relations and transpirational behavior. Use of this system avoids many problems associated with other techniques and provides a means for subjecting plants to reproducible water stress levels for extended periods of time.
Total Wrist Arthroplasty (1984)

Prosthetic replacement of the wrist requires careful consideration of anatomic and mechanical factors, appreciation of the techniques of implant fixation, and recognition of soft tissue imbalance across the wrist. Cemented wrist implants have an unacceptably high rate of failure (15%-30%) with a five-year progressively decreasing prosthesis "survival rate." Three different implant designs have been studied and analyzed with respect to long-term success. In the revision of failed wrist implants, the surgeon must evaluate requirements for a stable wrist and appropriately reconsider resection, a more stable total joint arthroplasty, and wrist arthrodesis.
Proteomics-based expression library screening – a platform technology for rapid discovery of pathogen-specific markers of infection (2008)

PELS, an immunoproteomics-based platform technology, is a rapid and inexpensive alternative to protein/antigen arrays/chips. It is applicable to any parasitic, fungal, viral or bacterial pathogen (or commensal) that: has a sequenced genome; can be cultured in the laboratory; and elicits host humoral immune responses during the process of infection/disease.
Orbital angular momentum microlaser (2016)

Structured light provides an additional degree of freedom for modern optics and practical applications. The effective generation of orbital angular momentum (OAM) lasing, especially at a micro- and nanoscale, could address the growing demand for information capacity. By exploiting the emerging non-Hermitian photonics design at an exceptional point, we demonstrate a microring laser producing a single-mode OAM vortex lasing with the ability to precisely define the topological charge of the OAM mode. The polarization associated with OAM lasing can be further manipulated on demand, creating a radially polarized vortex emission. Our OAM microlaser could find applications in the next generation of integrated optoelectronic devices for optical communications in both quantum and classical regimes.
8. What strategies can women use to optimise bone health at this stage of life? (2000)

Dairy foods provide the major, readily absorbed sources of calcium. Women aged 40 years and over should consume 3-4 serves of low-fat dairy food per day. If calcium supplements are required, the best absorption rate is from a dose of 500-600 mg of calcium once or twice daily. Exercise, alone or in combination with other therapeutic interventions, is effective in preventing bone loss. Vitamin D supplements may be necessary for women with inadequate sun exposure. Salty foods and the addition of salt to food should be avoided. While there is emerging evidence for the role of phytoestrogens in bone health, more human trials are required to strengthen this evidence.
Evidence for composition variations and impurity segregation at grain boundaries in high current-density polycrystalline K- and Co-doped BaFe2As2 superconductors (2014)

Some polycrystalline forms of the K- and Co-doped BaFe2As2 and SrFe2As2 superconductors now have a critical current density (Jc) within a factor of ∼5 of that required for real applications, even though it is known that some grain boundaries (GBs) block current, thus, raising the question of whether this blocking is intrinsic or extrinsically limited by artefacts amenable to improvement by better processing. Herein, we utilize atom-probe tomography (APT) to study the grain and GB composition in high Jc K- and Co-doped BaFe2As2 polycrystals. We find that all GBs studied show significant compositional variations on the scale of a few coherence lengths (ξ), as well as strong segregation of oxygen impurities, which we believe are largely introduced in the starting materials. Importantly, these findings demonstrate that APT enables quantitative analysis of the highest Jc K-doped BaFe2As2 samples, where analytical transmission electron microscopy (TEM) fails because of the great reactivity of thin TEM samples. The observations of major chemical perturbations at GBs make us cautiously optimistic that there is a large extrinsic component to the GB current blocking, which will be ameliorated by better processing, for which APT will likely be a crucial instrument.
QP refinement according to Lagrange multiplier for High Efficiency Video Coding (2013)

This paper presents a Quantization Parameter (QP) refinement algorithm used in Rate-Distortion Optimization (RDO) process to improve the coding efficiency for High Efficiency Video Coding (HEVC). To minimize the RD cost, QP is one of the parameters that can be optimized. Usually, multiple-QP optimization can be applied to choose the best QP value. However, this kind of optimization increases the encoding complexity significantly. We analyze the relationship between the QP value and Lagrange multiplier in this paper firstly. And then we apply the relationship between QP and Lagrange multiplier to the encoding process of HEVC. The proposed QP refinement method has already been adopted into HM (the HEVC reference software). The experimental results show that proposed algorithm can achieve about 1.4%~1.9% bit saving for luma component on average compared with the default anchor of HM-8.0. The bit saving on chroma components are larger than that of luma. The proposed method improves the coding efficiency without increasing the processing time.
Internal dynamic partial reconfiguration for real time signal processing on FPGA (2010)

Few FPGAs support creation of partially reconfigurable systems when compared to traditional systems based on total reconfiguration. This allows dynamic change of the functionalities hosted on the device when needed and while the rest of the system continues its working. Runtime partial reconfiguration of FPGA is an attractive feature which offers countless benefits across multiple industries. Xilinx has supported partial reconfiguration for many generations of devices. This can be taken advantage of substituting inactive parts of hardware systems and to adapt the complete chip a different requirement of an application. This paper describes an innovative implementation for real time audio and video processing using run time internal partial reconfiguration. System is implemented on Virtex-4 FPGA. Internal reconfiguration is handled using internal configuration access port (ICAP) driven by soft processor core. The considerable savings in device resources, bit stream size and configuration time is observed and tabulated in this paper. Keywords: Reconfigurable computing; partial reconfiguration; run time reconfiguration; internal reconfiguration.
Locked Nucleic Acid <i>In situ</i> Hybridization Analysis of miR-21 Expression during Colorectal Cancer Development (2009)

Using the LNA-ISH system for miRNA detection, miR-21 was detectable in precancerous adenomas. The frequency and extent of miR-21 expression increased during the transition from precancerous colorectal adenoma to advanced carcinoma. Expression patterns of miR-21 RNA and its target, tumor suppressor protein PDCD4, were mutually exclusive. This pattern may have clinical application as a biomarker for colorectal cancer development and might be emphasized by self-reinforcing regulatory systems integrated with the miR-21 gene, which has been previously shown in cell culture.
‘Ecological Aspects of War—Imagining Creaturely Mission’ (2016)

In this article, we set out some considerations around war, peace and environment, with a focus on the twentieth and twenty-first century phenomenon of “security anxiety”, with particular reference to Australia and our regional context. Second, we give two examples of Christian theological response to these considerations: the first biblical (focusing on the Book of Revelation); the second christological (focusing on the concept of “deep incarnation”). Then, we suggest some factors that might contribute to a Christian approach to a cultural transformation adequate to respond to the complex interweaving of war, security anxiety, colonial violence and climate change in our region.
Probabilistic latent semantic visualization (2008)

We propose a visualization method based on a topic model for discrete data such as documents. Unlike conventional visualization methods based on pairwise distances such as multi-dimensional scaling, we consider a mapping from the visualization space into the space of documents as a generative process of documents. In the model, both documents and topics are assumed to have latent coordinates in a two- or three-dimensional Euclidean space, or visualization space. The topic proportions of a document are determined by the distances between the document and the topics in the visualization space, and each word is drawn from one of the topics according to its topic proportions. A visualization, i.e. latent coordinates of documents, can be obtained by fitting the model to a given set of documents using the EM algorithm, resulting in documents with similar topics being embedded close together. We demonstrate the effectiveness of the proposed model by visualizing document and movie data sets, and quantitatively compare it with conventional visualization methods.
Time to end the distinction between mental and neurological illnesses (2012)

Mental and neurological conditions are classified in different chapters of diagnostic manuals. <b>P D White</b>, <b>H Rickards</b>, and <b>A Z J Zeman</b> argue that this distinction is inconsistent with current scientific understanding and that the conditions should be grouped together as disorders of the nervous system
MOS trench gate field-controlled thyristor (2003)

A novel device structure for a field-controlled thyristor (FCT) utilizing MOS trench gates (UMOS) to control the turn-off of the device is described. Two-dimensional computer modeling of static and dynamic characteristics was performed. This device exhibits a good forward conduction characteristic with a low forward voltage drop at high current densities. Simulation results on transient turn-off showed a turn-off capability of 500 A/cm/sup 2/ with the use of a reasonable gate bias. Experimental devices of the UMOS FCT were designed and fabricated. A turn-off current of 3.8 A with a very high turn-off current gain has been achieved.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Bayesian Nonparametric Federated Learning of Neural Networks (2019)

In federated learning problems, data is scattered across different servers and exchanging or pooling it is often impractical or prohibited. We develop a Bayesian nonparametric framework for federated learning with neural networks. Each data server is assumed to provide local neural network weights, which are modeled through our framework. We then develop an inference approach that allows us to synthesize a more expressive global network without additional supervision, data pooling and with as few as a single communication round. We then demonstrate the efficacy of our approach on federated learning problems simulated from two popular image classification datasets.