gebhart/patrepeval huggingface dataset:
A Metal–Organic Framework with Highly Polar Pore Surfaces: Selective CO<sub>2</sub> Adsorption and Guest‐Dependent On/Off Emission Properties (2011)

A 3D porous Zn(II) metal-organic framework {[Zn(2)(H(2)dht)(dht)(0.5)(azpy)(0.5)(H(2)O)]·4H(2)O} (1; H(2)dht=dihydroxyterphthalate, azpy=4,4'-azobipyridine) has been synthesised by employing 2,5-dihydroxyterephthalic acid (H(4)dht), a multidentate ligand and 4,4'-azobipyridine by solvent-diffusion techniques at room temperature. The as-synthesised framework furnishes two different types of channels: one calyx-shaped along the [001] direction and another rectangle-shaped along the [101] direction occupied by guest water molecules. The dehydrated framework, {[Zn(2)(H(2)dht)(dht)(0.5)(azpy)(0.5)]} (1') provides 52.7% void volume to the total unit-cell volume. The pore surfaces of 1' are decorated with unsaturated Zn(II) sites and pendant hydroxyl groups of H(2)dht linker, thereby resulting in a highly polar pore surface. The dehydrated framework 1' shows highly selective adsorption of CO(2) over other gases, such as N(2), H(2), O(2) and Ar, at 195 K. Photoluminescence studies revealed that compound 1 exhibits green emission (λ(max)≈530 nm) on the basis of the excited-state intramolecular proton-transfer (ESIPT) process of the H(2)dht linker; no emission was observed in dehydrated solid 1'. Such guest-induced on/off emission has been correlated to the structural transformation and concomitant breaking and reforming of the OH···OCO hydrogen-bonding interaction in the H(2)dht linker in 1'/1.
Isolation of Intact High Molecular Weight Chromosomal DNA from Desulfovibrio spp. (2000)

A simple, reproducible method to extract high quality DNA from sulphate-reducing bacteria (SRB) is described. SRB isolated from patients with ulcerative colitis, and from environmental samples, were used for purification of chromosomal DNA. DNA yield purified by this method was more than one order of magnitude higher compared with the Marmur method, phenol-chloroform or QIAGEN procedures. A 10ml culture was enough for isolation of sufficient DNA to perform hundreds of PCR-based reactions, and can be used in other DNA manipulation techniques such as restriction digestion and DNA cloning despite a low yield of cells (1x10 7 - 1x10 8 cells/ml).
Thermochemistry and Aqueous Solubilities of Hydrotalcite-Like Solids (2002)

Hydrotalcites are used in technology as catalysts and anion exchangers and are important sinks for environmental contaminants. Their compositional variability makes it important, but difficult, to estimate their aqueous solubility. We report calorimetric measurements of the heats of formation of cobalt-aluminum hydrotalcite phases. The heat and free energy of formation from the elements are equal to those of mechanical mixtures of binary compounds, namely hydroxides and carbonates. The interlayer anion is much more important than the cation in determining the solubility of the hydrotalcite phase and its ability to contain or release heavy metals to the environment. Because hydrotalcites do not have an unreactive polymer as a structural core, their aqueous stability will change dramatically with composition, particularly with anion content. This simple mechanical mixture model allows prediction of aqueous solubilities and trace metal retention in a variety of geochemical settings.
Unusual Telomeric DNAs in Human Telomerase-Negative Immortalized Cells (2008)

A significant fraction of human cancer cells and immortalized cells maintain telomeres in a telomerase-independent manner called alternative lengthening of telomeres (ALT). It has been suggested that ALT involves homologous recombination that is expected to generate unique intermediate DNAs. However, the precise molecular mechanism of ALT is not known. To gain insight into how telomeric DNAs (T-DNAs) are maintained in ALT, we examined the physical structures of T-DNAs in ALT cells. We found abundant single-stranded regions in both G and C strands of T-DNAs. Moreover, two-dimensional gel electrophoreses and native in-gel hybridization analyses revealed novel ALT-specific single-stranded T-DNAs, in addition to previously reported t-circles. These newly identified ALT-specific T-DNAs include (i) the t-complex, which consists of highly branched T-DNAs with large numbers of internal single-stranded portions; (ii) ss-G, which consists of mostly linear single-G-strand T-DNAs; and (iii) ss-C, which consists of most likely circular single-C-strand T-DNAs. Cellular-DNA fractionation by the Hirt protocol revealed that t-circles and ss-G exist in ALT cells as extrachromosomal and chromatin-associated DNAs. We propose that such ALT-specific T-DNAs are produced by telomere metabolism specific to ALT, namely, homologous recombination and the rolling-circle replication mechanism.
Frequent pattern-growth approach for document organization (2008)

In this paper, we propose a document clustering mechanism that depends on the appearance of frequent senses in the documents rather than on the co-occurrence of frequent keywords. Instead of representing each document as a collection of keywords, we use a document-graph which reflects a conceptual hierarchy of keywords related to that document. We incorporate a graph mining approach with one of the well-known association rule mining procedures, FP-growth, to discover the frequent subgraphs among the document-graphs. The similarity of the documents is measured in terms of the number of frequent subgraphs appearing in the corresponding document-graphs. We believe that our novel approach allows us to cluster the documents based more on their senses rather than the actual keywords.
Assessing User Engagement of an mHealth Intervention: Development and Implementation of the Growing Healthy App Engagement Index (2017)

The EI provided a comprehensive understanding of participant behavior with the app over the 9-month period of the Growing healthy program. The use of the EI in this study demonstrates that rich and useful data can be collected and used to inform assessments of the strengths and weaknesses of the app and in turn inform future interventions.
Sand thickness prediction from 3D seismic data: A case study of the Upper Jurassic Frisco City Sand of southwest Alabama (2001)

Discovery of oil at Frisco City Field in 1986 opened up a new play in the Upper Jurassic Haynesville Formation, Monroe County, southwest Alabama. (Figure 1). The Haynesville play, now in its second decade, has expanded to include 22 fields. There are two main productive areas: Conecuh Ridge in southern Monroe County and Covington High in southern Covington County. To date, these fields have produced approximately 22 million bls of oil and 33.6 billion ft3 of gas. Discoveries are linked to basement paleohighs that are part of the updip basement structure trend of the eastern Gulf. Reservoirs are found in structural traps, basement-cored anticlines, and faulted anticlines. There are also combination structural-stratigraphic traps in which the Haynesville Sand pinches out on the flanks of basement highs.
Plant Spacing for Controlled Environment Plant Growth (1978)

ABSTRACT THE design and operating characteristics of the slip-joint spacing device for use in controlled environ-ment plant growth systems is described. A description of the spacing concept is presented. Two growth experi-ments are described.
Parallel adaptive evolution of Atlantic cod on both sides of the Atlantic Ocean in response to temperature (2010)

Despite the enormous economic and ecological importance of marine organisms, the spatial scales of adaptation and biocomplexity remain largely unknown. Yet, the preservation of local stocks that possess adaptive diversity is critical to the long-term maintenance of productive stable fisheries and ecosystems. Here, we document genomic evidence of range-wide adaptive differentiation in a broadcast spawning marine fish, Atlantic cod (Gadus morhua), using a genome survey of single nucleotide polymorphisms. Of 1641 gene-associated polymorphisms examined, 70 (4.2%) tested positive for signatures of selection using a Bayesian approach. We identify a subset of these loci (n=40) for which allele frequencies show parallel temperature-associated clines (p<0.001, r2=0.89) in the eastern and western north Atlantic. Temperature associations were robust to the statistical removal of geographic distance or latitude effects, and contrasted 'neutral' loci, which displayed no temperature association. Allele frequencies at temperature-associated loci were significantly correlated, spanned three linkage groups and several were successfully annotated supporting the involvement of multiple independent genes. Our results are consistent with the evolution and/or selective sweep of multiple genes in response to ocean temperature, and support the possibility of a new conservation paradigm for non-model marine organisms based on genomic approaches to resolving functional and adaptive diversity.
Les révolutions à l'Est (1990)

info:eu-repo/semantics/published
Isolation and characterization of a new extracellular polysaccharide from a cellulose-negative strain of <i>Acetobacter xylinum</i> (1981)

An extracellular, acidic polysaccharide has been isolated from the culture medium of a spontaneous cellulose-negative strain of Acetobacter xylinum. Chemical analysis shows that the polymer is composed of glucose, mannose, rhamnose, and glucuronic acid in a molar ratio approximating 3:1:1:1. No evidence for the presence of cellobiose units as structural parts in the polysaccharide has been found.
GLRT-Based Mitigation of Partial Discharge Effect on Detection of Radial Deformation of Transformer HV Winding Using SAR Imaging Method (2016)

Online and on time detection of defects leads to technical and economic merits for networks. Recently, an online method has been introduced for the radial deformation detection of transformer high-voltage winding using electromagnetic waves called an ultrawideband synthetic aperture radar (SAR) imaging method. The basis of this method is comparison of sound and deformed images of transformer windings to detect the radial deformation. Partial discharge (PD), as another defect in the transformers, emits ultrahigh-frequency (UHF) signals that contain 0.3 to 3 GHz frequencies. PD detection by using UHF antennas has been tested on transformers. If an SAR imaging method can be applied in UHF band, a set of antennas can be used for the detection of both defects and get more information about transformer condition. In this paper, a feasibility study into the application of UHF band in an SAR imaging method is carried out. It is shown that PD, during a UHF SAR imaging process, leads to image distortion and wrong decision about deformation condition. In order to achieve correct imaging, a UHF stepped-frequency imaging method is tested for the detection of radial deformation and generalized likelihood ratio test (GLRT) is adapted and applied to solve the problem of the PD effect on imaging process. In addition, the effects of GLRT parameter variations on the problem are investigated in this paper.
Dystrophin‐deficient cardiomyocytes are abnormally vulnerable to mechanical stress‐induced contractile failure and injury (2001)

ABSTRACT Although absence of the cytoskeletal protein dystrophin leads to dilated cardiomyopathy in humans, the functional role of dystrophin in cardiac muscle remains undefined. We have addressed the hypothesis that dystrophin could help protect the heart against injury and contractile dysfunction induced by mechanical stress. In normal and dystrophin‐deficient (mdx) mice, cardiac mechanical stress was first manipulated ex vivo in a perfused working heart preparation. Despite an afterload level in the normal physiologic range, ex vivo perfused mdx hearts developed severe contractile dysfunction and nonischemic tissue damage, as is shown by excessive LDH release without a rise in coronary lactate. Injury to dystrophin‐deficient hearts was significantly correlated with cardiac work, and reducing the afterload level improved contractility and prevented injury in mdx hearts studied ex vivo. The response to mechanical stress in vivo was also assessed by using the vital dye Evans blue, which penetrates into cardiomyocytes with a disrupted sarcolemma. In the mdx group only, cardiomyocyte injury was increased markedly by acute elevations of mechanical stress induced by isoproterenol or brief aortic occlusion. Strikingly accelerated mortality and cardiac necrosis were also observed in the mdx group subjected to chronically increased cardiac mechanical stress via subtotal aortic constriction. Taken together, our results provide the first direct evidence that dystrophin serves to protect cardiomyocytes from mechanical stress and workload‐induced damage. Accordingly, reducing cardiac work in patients with dystrophin deficiency could be beneficial not only in treating established cardiomyopathy, but also in preventing the onset of cardiac disease.
High-repetition-rate ferroelectric-cathode gyrotron (2001)

The intensive research on ferroelectric electron-emission mechanisms in the last decade has resulted in a wide understanding of the physics and characteristics of this plasma-assisted electron source. Nevertheless, practical devices employing this cathode were hardly introduced. In this experimental study, a high-repetition-rate microwave oscillator based on a ferroelectric electron gun has been developed. The device operates as a cyclotron-resonance maser in the gyrotron mode. Microwave pulses exceeding 1.5 kW at ∼7 GHz are measured in repetition rates above 3 MHz and duty cycles of ∼50%. These experimental results encourage the implementation of ferroelectric cathodes in practical high-power microwave tubes.
Root-cause analysis of performance anomalies in web-based applications (2011)

The complexity behind current business-critical applications leads many times to performance problems difficult to anticipate and analyze. In our previous work we described a framework for detection of performance anomalies in web-based and component-based applications. It provides low overhead monitoring, correctly distinguishes performance anomalies from common workload variations and also presents initial information for system or application server changes related with an application performance anomaly.
Evaluation of NOx Storage Catalysts as an Effective System for NOx Removal from the Exhaust Gas of Leanburn Gasoline Engines (1995)

<div class="htmlview paragraph">One possibility to improve the fuel economy of SI-engines is to run the engine with a lean air-fuel-ratio (AFR). Hydrocarbon and carbon monoxide after-treatment has been proven under lean operation, but NOx-control remains a challenge to catalyst and car manufacturers. One strategy that is being considered is to run the engine lean with occasional operation at stoichiometry. This would be in conjunction with a three-way-catalyst (TWC) to achieve stoichiometric conversion of the three main pollutants in the normal way and a NOx trap. The NOx trap stores NOx under lean operation to be released and reduced under rich conditions. The trap also functions as a TWC and has good HC and CO conversion at both lean and stoichiometric AFR's.</div> <div class="htmlview paragraph">Under lean conditions NO is oxidised to NO<sub>2</sub> on Pt which is then adsorbed on an oxide surface. Typical adsorbent materials include oxides of potassium, calcium, zirconium, strontium, lanthanum, cerium and barium. Under reducing conditions the nitrate formed is unstable at temperatures greater than 100°C causing decomposition to release O<sub>2</sub> and NO. These are subsequently reduced to N<sub>2</sub> on Pt and Rh. In this paper we will discuss the parameters which control NOx adsorption efficiency. Of concern has been the durability of these adsorbers with regard to real exhaust-gas relevant to European and US markets, and the progress made in this area will be reported.</div> <div class="htmlview paragraph">On a fresh catalyst 90,5 % NOx conversion was attained on a bench leanburn engine operating at λ = 1,35 for 60 s with rich spikes at λ = 0,70 for 0,3 s. With this regeneration period the fuel economy penalty due to the rich excursion is negligible. The deactivation of the NOx trap is, as with standard TWC's, attributable both to sulphur poisoning and thermal ageing. It appears that under operating conditions the accumulation of sulphur is the predominant cause of deactivation. However after exposure to temperatures in excess of 800°C thermal ageing is predominant. It has been observed that sulphur poisoning, resulting from competitive adsorption of SO<sub>2</sub> with NO<sub>2</sub> on the adsorbent is largely reversible after exposure to rich conditions at 600°C.</div>
'Race', Nation and Belonging in Ireland (2011)

Despite consistent efforts to counteract those attitudes and practices that give rise to it, most putatively modern Western nations continue to experience the concrete effects of racial discrimination. This essay argues that nationality is all too easily conflated with ‘race’ or ethnicity, such that a seeming essence or givenness is manifested amongst all those within a particular geographic boundary. It is suggested that on the contrary, there is nothing natural about nationality as commonly understood; this being so, it must be continually shored up and reconstituted through social, linguistic and material practices. For modern nations in the West, this has often entailed the marking or identification - racialisation - of non-nationals and non-white ‘Others’. A logic of inside/outside subtends the concept of nation wherein such Others are the ‘constitutive outside’ that invisibly clarifies and reinforces the status of those within. Nation, then, tacitly asserts and valorises its own putative qualities through the explicit identification and denigration of what it is not. It is argued that such a logic militates against the openness that might ground compassionate and empathetic relations between those ‘inside’ the nation and its new arrivals. \nThis article first outlines its theoretical position: that nation is a ‘fictive ethnicity’ maintained through the continual (re)inscription of unequal power relations, and that nations and their ‘people’ are hybridities without originary ontological status. It summarises thereafter the historic constitution of national identities within both Northern Ireland and Ireland. Finally, it considers the experience of three groups of ‘Others’ on the island of Ireland, namely Jews, Travellers and asylum seekers, and how such Otherness has been represented in order to bolster the identity of the nation. This idea of nation and the exclusions it instates are interrogated throughout, with the conclusion that any policies aimed at eliminating institutional and individual racism, however well-meant, will ultimately fall short until nation itself - and the identities it is involved in constituting - are rethought.
Leflunomide as a novel treatment option in severe atopic dermatitis (2004)

Leflunomide was efficient in the long-term treatment of recalcitrant AD. Controlled studies will be necessary to evaluate the subset of severe AD patients benefiting most from this drug.
Ocular disposition of topically applied histamine, cimetidine, and pyrilamine in the albino rabbit (1984)

Aqueous solutions of pyrilamine, cimetidine, and histamine were instilled into the eyes of albino rabbits and drug levels determined as a function of time in the cornea, conjunctiva, aqueous humor, and iris-ciliary body. For all three drugs, less than 1% of the applied dose penetrates to the aqueous humor. Moreover, cimetidine and histamine are significantly less bioavailable than pyrilamine. Both cimetidine and histamine appear to bind to precorneal mucin and thus exhibit binding to conjunctival tissue with subsequent low penetration into the cornea and prolonged peak times in the aqueous humor. In addition, both drugs show binding to the iris-ciliary body as well. The influence of solution pH on the penetration of these compounds was also investigated, and a factor of two increase in aqueous levels was noted for the pH range 5-8, which encompasses the pKa's for these compounds.
Cardiovascular Assessment (2015)

This is the fourth part in the series Care is Critical, which looks at the theory and practice of the more complex technological interventions nurses may now have to manage on general wards or in the community. This article is the first of two looking at cardiovascular assessment. The next part of this series will appear on September 24.
Heterogeneous Catalytic Distillation - A Patent Review (2010)

Reactive distillation is being increasingly viewed as a highly promising alternative in the improvement of processes, exploiting the positive synergistic effects of integrating reaction and separation. Today, the technology has widened the scope of application beyond exothermic reactions and equilibrium limited reactions. This has led to intensive research about applications, synthesis/ design of operation and design of column devices of reactive distillation in academia as well as in industry. This article focuses specifically on reviewing and discussing patents for the application of heterogeneous catalytic distillation systems. Keywords: Catalytic column devices, catalytic distillation, heterogeneous catalysts, process intensification, reactive distillation.
111In-labeled EGF is selectively radiotoxic to human breast cancer cells overexpressing EGFR. (2000)

111In-DTPA-hEGF is a promising novel radiopharmaceutical for targeted Auger electron radiotherapy of advanced, hormone-resistant breast cancer.
Effect of culture conditions on canthaxanthin production by Dietzia natronolimnaea HS-1. (2007)

This study investigated the effects of various culture parameters (carbon sources, temperature, initial pH of culture, NaCl concentration, and light) on the growth and canthaxanthin production by Dietzia natronolimnaea HS-1. The results showed that the most effective carbon source for growth and canthaxantin production was glucose, and the best pH and temperature were 7 and 31 degrees C, respectively. In addition, the biomass and canthaxanthin production increased in a medium without NaCl and in the presence of light. Under the optimized conditions, the maximum biomass, total carotenoid, and canthaxanthin production were 6.12 +/- 0.21 g/l, 4.51 +/- 0.20 mg/l, and 4.28 +/- 0.15 mg/l, respectively, in an Erlenmeyer flask system, yet increased to 7.25 g/l, 5.48 mg/l, and 5.29 mg/l, respectively, in a batch fermenter system.
Zinc dication inclusion complexes of endodentate tripodands as carbonic anhydrase-inspired artificial esterases (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTZinc dication inclusion complexes of endodentate tripodands as carbonic anhydrase-inspired artificial esterasesRick Jairam and Pierre G. PotvinCite this: J. Org. Chem. 1992, 57, 15, 4136–4141Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992https://pubs.acs.org/doi/10.1021/jo00041a016https://doi.org/10.1021/jo00041a016research-articleACS PublicationsRequest reuse permissionsArticle Views166Altmetric-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 InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts