gebhart/patrepeval huggingface dataset:
Fiber-optic sensing of carbon dioxide based on excited-state proton transfer to a luminescent ruthenium(II) complex (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFiber-optic sensing of carbon dioxide based on excited-state proton transfer to a luminescent ruthenium(II) complexGuillermo. Orellana, Maria C. Moreno-Bondi, Eva. Segovia, and Maria D. MarazuelaCite this: Anal. Chem. 1992, 64, 19, 2210–2215Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published inissue 1 October 1992https://pubs.acs.org/doi/10.1021/ac00043a005https://doi.org/10.1021/ac00043a005research-articleACS PublicationsRequest reuse permissionsArticle Views193Altmetric-Citations44LEARN 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
Purines. VIII. The Aminolysis of Certain Chlorosubstituted Purines<sup>1</sup> (1959)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPurines. VIII. The Aminolysis of Certain Chlorosubstituted Purines1S. R. Breshears, S. S. Wang, S. G. Bechtolt, and B. E. ChristensenCite this: J. Am. Chem. Soc. 1959, 81, 14, 3789–3792Publication Date (Print):July 1, 1959Publication History Published online1 May 2002Published inissue 1 July 1959https://pubs.acs.org/doi/10.1021/ja01523a075https://doi.org/10.1021/ja01523a075research-articleACS PublicationsRequest reuse permissionsArticle Views267Altmetric-Citations26LEARN 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
Tau mis-splicing in the pathogenesis of neurodegenerative disorders (2016)

Tau proteins, which stabilize the structure and regulate the dynamics of microtubules, also play important roles in axonal transport and signal transduction. Tau proteins are missorted, aggregated, and found as tau inclusions under many pathological conditions associated with neurodegenerative disorders, which are collectively known as tauopathies. In the adult human brain, tau protein can be expressed in six isoforms due to alternative splicing. The aberrant splicing of tau pre-mRNA has been consistently identified in a variety of tauopathies but is not restricted to these types of disorders as it is also present in patients with non-tau proteinopathies and RNAopathies. Tau mis-splicing results in isoform-specific impairments in normal physiological function and enhanced recruitment of excessive tau isoforms into the pathological process. A variety of factors are involved in the complex set of mechanisms underlying tau mis-splicing, but variation in the cis-element, methylation of the MAPT gene, genetic polymorphisms, the quantity and activity of spliceosomal proteins, and the patency of other RNA-binding proteins, are related to aberrant splicing. Currently, there is a lack of appropriate therapeutic strategies aimed at correcting the tau mis-splicing process in patients with neurodegenerative disorders. Thus, a more comprehensive understanding of the relationship between tau mis-splicing and neurodegenerative disorders will aid in the development of efficient therapeutic strategies for patients with a tauopathy or other, related neurodegenerative disorders. [BMB Reports 2016; 49(8): 405-413].
Constantine Samuel Rafinesque—A Sketch (1905)

In a suburb of Constantinople, called Galata, C, S. Rafinesque was born in the year 1783,* His father, G, P, Rafinesque, was a native of Marseilles and of French origin.His mother
Characterization of a gene controlling heterocyst differentiation in the cyanobacterium Anabaena 7120. (1991)

Anabaena 7120 mutant 216 fails to differentiate heterocyst. We previously identified a 2.4-kb wild-type DNA fragment able to complement this mutant. We show here that the sequence of this fragment contains a single open reading frame (hetR), encoding a 299-amino-acid protein. Conjugation of deletion subclones of this fragment into strain 216 showed that the hetR-coding region is both necessary and sufficient for complementation of the Het- phenotype. The mutation in 216 is located at nucleotide 535 in the hetR gene, converting a serine at position 179 in the wild-type protein to an asparagine in the mutant. Interruption of the hetR gene in wild-type cells results in a mutant phenotype identical to that of 216. Both 216 and wild-type cells containing wild-type hetR on a plasmid display increased frequency of heterocysts, even on media containing fixed nitrogen. These results suggest that hetR encodes a product that is not only essential for but also controls heterocyst development. This putative regulatory protein lacks known structural motifs characteristic of transcription factors and probably acts at a level one or more steps removed from its target genes.
Reflective correctors for the Hubble Space Telescope axial instruments (1993)

Reflective correctors to compensate the spherical aberration in the Hubble Space Telescope are placed in front of three of the axial scientific instruments (a camera and two spectrographs) during the first scheduled refurbishment mission. The five correctors required are deployed from a new module that replaces the fourth axial instrument. Each corrector consists of a field mirror and an aspherical, aberration-correcting reimaging mirror. In the camera the angular resolution capability is restored, be it in reduced fields, and in the spectrographs the potential for observations in crowded areas is regained along with effective light collection at the slits.
A Retinoic Acid Receptor-α (RARα) Selective Agonist Modulates Procoagulant Activity of Acute Promyelocytic Cells and Induces Their Differentiation Into Neutrophils (1998)

To the Editor:

We recently found that a subtype of retinoic acid receptors (RARs), RARα, mediates upregulation of TM gene expression in human promyelocytic leukemia cells (NB4), acute monocytic leukemia cells, and human umbilical vein endothelial cells and that the cooperation of RARα and RARβ
On top of tabletop: A virtual touch panel display (2008)

In the real world, a physical tabletop provides public and private needs for people around the table. For competing scenarios such as playing a poker game or running a price negotiation around a tabletop system, privacy protection is obviously an indispensable requirement. In this work we developed a privacy-enhanced tabletop system composed of two kinds of displays, the tabletop surface and the virtual panel. All users share the large tabletop surface as a public display while every user is provided with a virtual panel emerging above the tabletop as a personal display for viewing private information. The virtual panel is an intangible, privacy-protected virtual screen created by a special optical mechanism which offers several promising characteristics, making it perfect to be integrated into a tabletop system. The contributions of the paper include: Firstly, we introduce a novel display technique, the virtual panel, into a tabletop system to build a privacy-enhanced tabletop system. Secondly, an analysis on display optics of the virtual panel is presented to explore other potentials of the display and to claim the feasibility of the proposed combination. Thirdly a computer vision-based interaction technique is proposed to provide direct-touch interaction for the virtual panel. Finally, we discuss a wide range of considerations on designing the user interface and interaction for the virtual panel.
Experimental Gastric Tumors in Mice (1943)

Paediatric rheumatology is an exciting field exploding with new knowledge of autoimmune and autoinflammatory conditions and how to treat them. It is, however, a relatively new subspecialisation in Asia. There is thus a great need to educate the public and medical community about paediatric rheumatic diseases so that children with such conditions are given the highest possibility of achieving normal function in their daily lives.
On-chip bond-wire antennas on CMOS-grade silicon substrates (2008)

The paper introduces a novel concept of using metal bond-wires as on-chip antennas on low resistivity CMOS-grade silicon substrate based ICs. Simulation results indicate that bond-wires, which can be readily realized with high-precision industry-standard tools, can indeed be used as on-chip antennas operating from 30-60 GHz. In particular, the paper examines the input impedance and radiation characteristics of a bond-wire antenna operating at 30 GHz, using the ANSOFT high frequency structure simulator (HFSS) program employing the full-wave finite element method. The results show a minimum return loss of 14.24 dB and a gain of 0.22 dBi at 33.8 GHz. The radiation efficiency of the antenna is 74%, which is considerably higher than standard on-chip antennas.
Direct and Indirect Detection of Terahertz Waves using a Nb-based Superconducting Tunnel Junction (2006)

We are developing a broadband THz detectors using Nb-based superconducting tunnel junctions. We found two components in a current signal for 1-2 THz pulse input. From the comparison of results obtained for the signals, the frequency response for the different size of STJs and the STJs fabricated on different substrate materials, we demonstrate that they correspond to photons absorbed with the superconductor electrode (referred as 'direct' component) and phonons generated by photons absorbed with the substrate (referred as 'phononmediated' component).
Microencapsulates in textile coloration and finishing (1991)

Microencapsulation technology has been widely used in a number of industrial sectors including agriculture, medicine, toiletries and cosmetics. The textile industry, although initially slow to exploit the technology, is now generating innovative ideas and inventions within the field. Examples of traditional microencapsulation techniques, and of the wide spectrum of innovations utilising microencapsulation technology in coloration and finishing, are discussed.
<i>Helicobacter pylori</i> and extragastric diseases (2016)

During the past year, many articles were published on the extragastric diseases related to Helicobacter pylori infection. This supports the theory that some microorganisms may cause diseases even far from the primary site of infection by interfering with different biologic processes. The role of H. pylori on idiopathic thrombocytopenic purpura, sideropenica anemia, and vitamin B12 deficiency is well known. On the other hand, there is a growing interest in the bacterium's association with cardiovascular, neurologic, hematologic, dermatologic, head and neck, and uro-gynecologic diseases, as well as diabetes mellitus and metabolic syndrome, with very promising results. This review has been aimed at summarizing the results of the most relevant studies published over the last year on this fascinating topic.
Catalytic NO<sub><i>x</i></sub> Abatement Systems for Mobile Sources: From Three-Way to Lean Burn after-Treatment Technologies (2011)

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTCatalytic NOx Abatement Systems for Mobile Sources: From Three-Way to Lean Burn after-Treatment TechnologiesPascal Granger*† and Vasile I. Parvulescu*‡View Author Information† Unité de Catalyse et de Chimie du Solide, UMR CNRS 8181, University of Lille 1, 59655 Villeneuve d'Ascq, France‡ Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, Romania, 4 − 12 Regina Elisabeta Boulevard, Bucharest 030016, Romania*P.G.: tel. +32 3 20 43 49 38, fax +32 3 20 43 65 61, e-mail [email protected]. V.I.P.: tel. +4021 4103178, fax +4021 3159249, e-mail [email protected]Cite this: Chem. Rev. 2011, 111, 5, 3155–3207Publication Date (Web):March 18, 2011Publication History Received1 June 2010Published online18 March 2011Published inissue 11 May 2011https://pubs.acs.org/doi/10.1021/cr100168ghttps://doi.org/10.1021/cr100168greview-articleACS PublicationsCopyright © 2011 American Chemical SocietyRequest reuse permissionsArticle Views9350Altmetric-Citations639LEARN 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:Byproducts,Catalysts,Catalytic reactions,Oxides,Redox reactions Get e-Alerts
An integrated optical waveguide and charge-coupled-device image array (1977)

The device structure and experimental operation of an integrated optical waveguide and charge-coupled device (CCD) detector array are considered. The use of silicon as a substrate allows direct fabrication of the CCD detector array and a thermally oxidized layer of SiO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> forms an effective substrate for waveguide deposition. The detector array is composed of a two-phase overlapping-gate CCD with first-level polycrystalline silicon electrodes and second-level aluminum electrodes connected in parallel by means of a series of gates to an array of pbotodiodes. In the photodiode region the SiO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> layer is tapered to a termination so that with minimal scatter, light is multiply refracted into the detector region. The center-to-center detector element spacing of the device fabricated and successfully operated is 32 μm. Optimum detector length is considered as a function of waveguide thickness. The integrated waveguide-CCD array is expected to become an integral part of various signal-processing devices.
Recover heat by mechanical vapor recompression (1985)

Several examples illustrating recompression of head vapors for heating the reboiler of a distillation tower are presented. The advantages of the mechanical vapor recompression system using a screw compressor are discussed in detail. The system is economically attractive with simple payback periods often less than two years. Numerous studies have identified a number of alternatives for lowering energy consumption in the distillation process through various heat recovery techniques. One such technique utilizes mechanical vapor recompression. By mechanically recompressing low-pressure vapors, a better match can be made between low-grade waste energy sources and process uses, thereby improving plant energy efficiency.
Sesame oil. III. Antioxidant properties of sesamol (1950)

Summary and Conclusions Sesamol possesses marked antioxidant activity in lard and also exhibits a pronounced protection for vegetable oils, especially for sesame oil. The antioxidant activity of sesamol strengthens the assumption that free sesamol is responsible for the unusual stability of hydrogenated sesame oil, a subject which has been reported in another article in this series. The use of sesamol as a commercial antioxidant would probably not be permitted until it has been shown to possess no undesirable physiological activity. However the presence of sesamol in concentrations up to 0.2% in sesame oil, one of the oldest edible oils known to man, would probably indicate that no serious adverse physiological problem exists in this respect. Although usually present in a bound form (sesamolin), this sesamol is known to be liberated by the action of mineral acids, even when quite dilute. Sesamol is a very low molecular weight compound which is sufficiently volatile to be removed by deodorization, consequently it should be added to the fat after deodorization.
Utilization of organic and inorganic nitrogen sources by ectomycorrhizal fungi in pure culture and in symbiosis with <i>Pinus contorta</i> Dougl. ex Loud. (1992)

summary The growth of ten species of ectomycorrhizal fungi was measured in liquid media containing different organic and inorganic nitrogen sources. All fungi grew well on ammonium. Growth on nitrate was generally lower, although there was considerable variation between different isolates of the same species. Suillus variegatus, Piloderma croceum, Paxillus involutus, Hebeloma crustuliniforme and unidentified pink and white isolates often grew as well on organic nitrogen sources as on ammonium. Growth of the other species was more variable. Isolates of Thelephora terrestris and Lactarius rufus varied in their ability to use bovine serum albumen (BSA) but two Laccaria species were poor at using the protein as a nitrogen source. The ability of mycorrhizal and non‐mycorrhizal Pinus contorta Dougl. ex Loud, plants to utilize BSA was also examined. Non‐mycorrhizal plants and mycorrhizal plants infected with either T. terrestris or the unidentified pink ectomycorrhizal symbiont were supplied either with ammonium or with BSA. Growth of plants supplied with BSA was significantly increased by mycorrhizal infection with the pink symbiont and not significantly different from that of plants supplied with ammonium, but non‐mycorrhizal plants were unable to use the protein as a nitrogen source and had significantly lower yields and nitrogen contents than infected plants. In contrast, mycorrhizal infection with T. terrestris had no effect on growth or nitrogen contents of plants supplied with protein. The results are discussed in relation to possible physiological differences between ectomycorrhizal fungi occurring at different successional stages of forest development.
Automatic Glaucoma Detection Based on Optic Disc Segmentation and Texture Feature Extraction (2016)

The use of digital image processing techniques is prominent in medical settings for the automatic diagnosis of diseases. Glaucoma is the second leading cause of blindness in the world and it has no cure. Currently, there are treatments to prevent vision loss, but the disease must be detected in the early stages. Thus, the objective of this work is to develop an automatic detection method of Glaucoma in retinal images. The methodology used in the study were: acquisition of image database, Optic Disc segmentation, texture feature extraction in different color models and classiffication of images in glaucomatous or not. We obtained results of 93% accuracy.
780nm VCSELs for home networks and printers (2004)

A 780 nm multi-mode VCSEL, to meet the requirements for a new GI plastic optical fiber, are reported. It has 4 spots driven simultaneously like a single spot and hence the optical power needed from each spot is reduced to 1/4. As a result, the MTTF obtained is well over 200,000 hr at 60/spl deg/C under 3 mW operation, with a narrow beam divergence angle of less than 18/spl deg/ (1/e/sup 2/). This VCSEL also shows wide-open 5 Gbps eye diagrams at standard driving conditions, which is sufficient for most home network applications. Applications using this VCSEL and Lumistar, such as optical DVI (digital visual interface) and GBIC (Gigabit interface connector) modules are shown too. Furthermore, a 780 nm VCSEL array with independently addressable 32 spots, for laser beam printer applications, is reported. Each spot has a single-mode optical power of more than 1.2 mW at 60/spl deg/C and their uniformity is within /spl plusmn/1%. A high resolution of 2400 DPI and a print speed of 12.5 ppm, in color, was achieved by incorporating this array as an optical source.
α-Chlorination of Aromatic Acetyl Derivatives with Benzyltrimethylammonium Dichloroiodate (1988)

Reaction of aromatic acetyl derivatives with benzyltrimethylammonium dichloroiodate in refluxing dichloroethane/methanol for several hours gave α-chloroacetyl derivatives in good yields.
Network management systems for overseas solutions (2006)

The deployment and management of large-scale networks entail complex tasks that require careful initial planning and ongoing operations support. Meanwhile, telecommunications carriers are reducing staff as part of their response to increased pressure being applied by intensified competition and more competitive pricing. More than ever before, it is essential that telecommunications equipment suppliers provide complete management solutions for their products. Such solutions should include the Element/Network Management System (EMS), craft Interface, and Network Design & Planning Tools. A flexible strategy is needed to integrate the EMS with upper-layer OSS applications that may already be deployed by the carriers.