gebhart/patrepeval huggingface dataset:
Cathodoluminescence imaging and spectroscopy by near‐field detection (2000)

Using near-field techniques, we have developed an experimental set-up for spatially resolved cathodoluminescence (CL) spectroscopy and monochromatic imaging. It combines a scanning near-field optical/force microscope with a scanning electron microscope equipped with a field emission gun. The potentialities of this scanning near-field cathodoluminescence microscope are demonstrated on two kinds of sample: an indented MgO crystal and AlGaN/GaN quantum wells grown on GaN/sapphire. Monochromatic CL imaging allows a clear distinction between the emission of quantum wells and the GaN substrate, and for the MgO crystal, the localization on the slip bands, near the indentation, of luminescent centres emitting at 450 nm.
Synthesis and characterization of new heterocyclic compounds of tungsten, selenium, and tellurium (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of new heterocyclic compounds of tungsten, selenium, and telluriumKattesh V. Katti, Ulrich Seseke, and Herbert W. RoeskyCite this: Inorg. Chem. 1987, 26, 6, 814–816Publication Date (Print):March 1, 1987Publication History Published online1 May 2002Published inissue 1 March 1987https://pubs.acs.org/doi/10.1021/ic00253a008https://doi.org/10.1021/ic00253a008research-articleACS PublicationsRequest reuse permissionsArticle Views197Altmetric-Citations42LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Chronology of cellular alterations during 7‐ketocholesterol–induced cell death on A7R5 rat smooth muscle cells: Analysis by time lapse‐video microscopy and conventional fluorescence microscopy (2003)

During cell death induced by 7-ketocholesterol in A7R5 rat smooth muscle cells, the different methods of microscopy allowed us to establish that alterations of actin fibers and mitochondrial dysfunctions occurred before condensation and/or fragmentation of the nuclei, which preceded the loss of cell adhesion.
Formation and growth of thermal NO/sub x/ in hydrocarbon combustion (1978)

The amounts of NO formed in the primary combustion and the post-combustion zones during the combustion of propane were measured and the results were compared with the theoretical predictions from the Zel'dovich theory. 8 figs, 1 table.
Radionuclides Sorption onto the Cementitious Materials (1997)

セメント固化体による無機C-14(CO32-)の収着機構をバッチ法による分配係数測定試験、XPS分析、ゼータ電位測定により検討した。その結果、C-14はセメント構成成分であるSiO2とCaOの反応生成物に静電的に吸着されることを見出した。この反応では、マイナスに帯電したSiO-がCa2+と反応しプラスに帯電したC-14吸着サイト(SiO-Ca+)を生成する。以上の機構に基づき、Cs-134，Co-60，Am-241の収着機構についても検討を行った結果、Cs-134は陽イオンとしてセメント中のSiO-に静電的に吸着し、Co-60，Am-241はC-14と同じくセメント中のSiO2とCaOの反応生成物に収着することがわかった。 普通ポルトランドセメント(OPC)はCaO成分に比べSiO-生成量が少ない。このため、これらの核種の分配係数を向上するためには、SiO-を生成する高炉スラグをOPCに添加し、Ca2+/SiO-比を最適化すれば良い。その結果、高炉スラグを50wt%添加することにより、いずれの核種も分配係数が向上することを確認した。
Genetic mapping of habitual substance use, obesity-related traits, responses to mental and physical stress, and heart rate and blood pressure measurements reveals shared genes that are overrepresented in the neural synapse (2012)

Links between substance use habits, obesity, stress and the related cardiovascular outcomes can be, in part, because of loci with pleiotropic effects. To investigate this hypothesis, we performed genome-wide mapping in 119 multigenerational families from a population in the Saguenay-Lac-St-Jean region with a known founder effect using 58,000 single-nucleotide polymorphisms and 437 microsatellite markers to identify genetic components of the following factors: habitual alcohol, tobacco and coffee use; response to mental and physical stress; obesity-related traits; and heart rate (HR) and blood pressure (BP) measures. Habitual alcohol and/or tobacco users had attenuated HR responses to mental stress compared with non-users, whereas hypertensive individuals had stronger HR and systolic BP responses to mental stress and a higher obesity index than normotensives. Genetic mappings uncovered numerous shared genes among substance use, stress response, obesity and hemodynamic traits, including CAMK4, CNTN4, DLG2, FHIT, GRID2, ITPR2, NOVA1 and PRKCE, forming network of interacting proteins, sharing synaptic function and display higher and patterned expression profiles in brain-related tissues; moreover, pathway analysis of shared genes pointed to long-term potentiation. Subgroup genetic mappings uncovered additional shared synaptic genes, including CAMK4, CNTN5 and DNM3 (hypertension-specific); CNTN4, DNM3, FHIT and ITPR1 (sex-specific), having protein interactions with genes driven from general analysis. In summary, consistent with the observed phenotypic correlations, we found substantial overlap among genomic determinants of these traits in synapse, which supports the notion that the neural synapse may be a shared interface behind substance use, stress, obesity, HR, BP as well as the observed sex- and hypertension-specific genetic differences.
[Giant mesenteric fibromatosis: a case report]. (1996)

The fibromatoses represent a broad group of fibroblastic proliferations characterized by infiltrative growth and a tendency toward recurrence but, unlike malignant fibrous tumors, they do not metastasize. Mesenteric fibromatosis arising from the mesentery of the small bowel is rare. It may be sporadic or may occur in association with polyposis coli and other soft tissue tumors as a component of Gardner's syndrome. We report a case of mesenteric fibromatosis in a 52-year-old man with no evidence of Gardner's syndrome. The neoplasm occupied the whole abdominal cavity, weighing 12 kg, with the greatest diameter being 50 cm. Histological findings (i.e moderate degree of cellularity, lack of nuclear pleomorphism and mitotic figures) allowed to rule out malignancy. Surgical removal is actually the only effective treatment for mesenteric fibromatosis. Excision must be as wide as possible in order to prevent local recurrence. Until now, no satisfactory results have been obtained with external radiotherapy. More recently, anti-inflammatory drugs have been used in the management of this tumor.
Complex Regulation of Ly-6E Gene Transcription in T Cells by IFNs (1999)

The complexity of IFN-mediated regulation of the murine Ly-6E gene in T cell lines is highlighted by the following observations: 1) multiple regulatory regions are present within different parts of the Ly-6E promoter and are necessary for IFN inducibility of the Ly-6E gene, 2) multiple transcription factors including Oct-1 and Oct-2 and the high mobility group (HMG) protein HMGI(Y) bind to regulatory elements present within the G region required for both IFN-alphabeta and IFN-gamma responses, 3) mutational analysis of the G region reveals that a complex interaction exists between the factors binding to this region as shown by their mutual interdependence for detection in DMSA, and 4) inhibition of expression of HMG proteins by antisense HMGI-C RNA in EL4 cells causes the loss of IFN-alphabeta and IFN-gamma inducibility of the endogenous Ly-6 gene. These findings taken together suggest that, in response to IFN treatment, an HMG protein-dependent complex involving multiple regulatory factors is assembled and is required for IFN inducibility of the Ly-6E gene.
On Chosen Ciphertext Security of Multiple Encryptions. (2002)

Previous treatments of encryption schemes secure under chosen ciphertext attacks (CCA) has referred to the technical definition of indistinguishability of encryptions. As in the case of security under passive (eavesdropping) attacks, we feel that the definition of semantic security is the more natural one. Thus, we first formulate semantic security under CCA, and show that it is indeed equivalent to the technical definition of CCA security (used in prior work).
Significance of 2-3 and 2-6 sialylation of Lewis A antigen in pancreas cancer (1988)

Distributions of sialylated derivatives of Lewis a (Lea) antigen in cancer tissue of the human pancreas and in the sera of patients with pancreas diseases have been studied; the significance of 2-3 and 2-6 sialylation of Lea antigens in pancreas cancer have been investigated using specific monoclonal antibodies. In most pancreas cancer tissue the 2-3 sialylated Lea antigen was found to be specifically distributed in cancer cells as determined by immunohistologic techniques, while a significantly smaller amount of the antigen was detected in surrounding nonmalignant pancreas tissue, which was infiltrated by cancer cells. Conversely, the 2-6 sialylated Lea antigen was abundantly present in nonmalignant pancreas tissue, while it was less frequently present in pancreas cancer cells. When the sera of 66 patients with pancreas diseases were examined for these sialylated Lea antigens, correlation studies showed that the levels of 2-3 sialylated Lea tended to be 44.1 times more than the levels of 2-6 sialylated Lea in the sera of cancer patients. The average ratio of 2-3 sialylated Lea to 2-6 sialylated Lea was 0.23 in the sera of patients with pancreatitis. These data collectively indicate that the 2-3 sialylation of Lea is remarkably enhanced, and the 2-6 sialylation of Lea antigen is suppressed in pancreas cancer. The determination of the 2-3 sialylated Lea to 2-6 sialylated Lea ratio in patients with pancreas diseases may be helpful for the differential diagnosis of pancreas cancer and nonmalignant pancreatic disorders.
<title>New inverse synthetic aperture radar algorithm for translational motion compensation</title> (1991)

Inverse synthetic aperture radar (ISAR) is an imaging technique that shows real promise in classifying airborne targets in real time under all weather conditions. Over the past few years a large body of ISAR data has been collected and considerable effort has been expended to develop algorithms to form high-resolution images from this data. One important goal of workers in this field is to develop software that will do the best job of imaging under the widest range of conditions. The success of classifying targets using ISAR is predicated upon forming highly focused radar images of these targets. Efforts to develop highly focused imaging computer software have been challenging, mainly because the imaging depends on and is affected by the motion of the target, which in general is not precisely known. Specifically, the target generally has both rotational motion about some axis and translational motion as a whole with respect to the radar. The slant-range translational motion kinematic quantities must be first accurately estimated from the data and compensated before the image can be focused. Following slant-range motion compensation, the image is further focused by determining and correcting for target rotation. The use of the burst derivative measure is proposed as a means to improve the computational efficiency of currently used ISAR algorithms. The use of this measure in motion compensation ISAR algorithms for estimating the slant-range translational motion kinematic quantities of an uncooperative target is described. Preliminary tests have been performed on simulated as well as actual ISAR data using both a Sun 4 workstation and a parallel processing transputer array. Results indicate that the burst derivative measure gives significant improvement in processing speed over the traditional entropy measure now employed.
Metabolism of long‐chain fatty acids, alcohols and alkylglycerols in the fish parasite<i>Paratenuisentis ambiguus</i> (Acanthocephala) (1994)

Specific differences between the acyl composition of lipids of the helminth Paratenuisentis ambiguus and its host eel, as shown previously, prompted us to study the lipid metabolism in this intestinal fish parasite. Adults and larvae of P. ambiguus were fed various lipid precursors, e.g., fatty acids, long-chain alcohols and 1-O-alkylglycerols, which may occur as common nutrients of intestinal parasites. Incorporation of [1-14C]palmitic acid into neutral and polar lipids was found to be similar under aerobic and near-anaerobic conditions. In adult parasites maintained in culture medium supplemented with glucose, [1-14C]palmitic acid was incorporated mainly into triacylglycerols and phosphatidylcholines, whereas [1-14C]oleic acid was incorporated preferentially into triacylglycerols. In fasted adults, as well as in larvae, [1-14C]oleic acid was mainly transferred to phosphatidylcholines. Lipolytic activity was detected in adult parasites that had been incubated with radioactive trioleoylglycerol. [1-14C]Hexadecan-1-ol was oxidized in P. ambiguus at a high rate to labeled palmitic acid, which was incorporated into various lipid classes of P. ambiguus. Small but significant proportions of radioactivity from hexadecan-1-ol were incorporated into ether glycerolipids of the parasite. A more direct precursor in ether glycerolipid metabolism, i.e., rac-1-O-[1'-14C]hexadecylglycerol, was incorporated into alkyl and 1'-alkenyl moieties of choline and etha-nolamine ether-glycerophospholipids of P. ambiguus in high yield. High proportions of labeled diacylglycerols, triacylglycerols and steryl esters were detected in surface lipids as well as lipid extracts of the culture media after incubation of P. ambiguus with [1-14C]palmitic or [1-14C]oleic acids.(ABSTRACT TRUNCATED AT 250 WORDS)
An Economic Analysis of Product Differentiation under Latent Separability (2003)

This paper develops an analysis of markets for differentiated products. It relies on the concept of latent separability for consumer preferences. As proposed by Blundell and Robin, latent separability assumes that purchased products are allocated in the production of latent intermediate utility-yielding goods. Product differentiation can arise when each product makes a different contribution to the production of the latent goods. Latent separability is particularly attractive in the investigation of markets for branded products where the number of brands is large. It allows focusing on the demand for a smaller number of latent goods. Our approach is based on a quadratic almost ideal demand system (Q-AIDS), which provides a flexible representation of consumer behavior. Its usefulness is illustrated in an empirical analysis of markets for carbonated soft drinks (CSD). First, the econometric analysis accounts for the endogeneity of prices for differentiated brands. Second, it provides an empirical evaluation of the number of relevant latent goods. Third, it shows how latent separability improves the efficiency of parameter estimates. Finally, it generates estimates of shadow prices of the latent goods, information that gives useful insights into the economics of differentiated products.
ChemInform Abstract: Synthesis of Carbazoles Related to Carbazomycin, Hyellazole and Ellipticine. (1989)

Abstract The reaction of the 2‐alkylsubstituted indoles (I) with 2,3‐unsaturated ketones of type (II) yields the desired carbazoles (III).
ChemInform Abstract: ENHYDRAZINE 4. MITT. UMSETZUNG VON DIMEDON MIT HYDRAZONEN (1972)

Abstract Dimedon (I) bildet bei Gegenwart von p‐Toluolsulfonsäure mit araliphatischen oder aromatischen Hydrazonen, wie z. B: (II), die Enhydrazone (III), die zu den Enhydrazinen (IV) hydriert werden können.
Gas-Nitriding and Wear Characteristics of Sintered Cr Steels (1985)

Sintered Cr steels containing 1 and 3 mass%Cr were prepared from mixtures of atomized Fe-Cr alloy powder and graphite powder, by compacting and sintering at 1523 K for 3.6 ks in vacuum. Specimens were nitrided at 773 K for 3.6 ks in an ammonia gas atmosphere.The properties of the nitrided layer were investigated by electron probe microanalysis, transmission electron microscopy, X-ray diffraction and microvickers hardness testing etc, and the wear characteristics were studied by Ohgoshi type micro-wear testing without lubricant.Results obtained are summarized as follows.(1) Compound layers were formed not only on the surface but on the inner surface of pores and at grain boundaries connecting with pores. It was found by X-ray diffraction that these compounds were ε-Fe2.3N phases.(2) Fine precipitates were observed in the diffusion zones of sintered 1 and 3 mass%Cr steels by transmission electron microscopy, and were identified with CrN particles by electron diffraction.(3) By nitriding, the wear resistance of the sintered Cr steel was improved remarkably. But the wear resistance was aggravated by spalling of the compound layer formed on the surface, therefore, it is desirable to remove the surface compound layer, in order to have the good wear resistance.(4) In case of removing the surface compound layer, the wear rate of the nitrided specimen of the sintered 1 mass%Cr steel was nearly equivalent to that of the sintered 3 mass%Cr steel, so it is considered that the Cr content of the sintered Cr steel for nitriding with an ammonia gas must be about 1 mass%.
Visual Attention and Coactivation of Response Decisions for Features from Different Dimensions (2002)

The role of visual attention in task performance has been extensively debated. On the basis of the dimensional-action model, we hypothesized that a major role of attention is to transfer response decisions from targets on which it is focused to high-level centers dealing with response execution. This hypothesis predicts that response decisions for two targets will interact only when attention is focused on both targets, and only when the response to the targets is defined by different dimensions. Three experiments, using the redundancy-gain paradigm, tested and confirmed this prediction. Experiment 1 showed that coactivation of two cross-dimensional targets occurred only when the targets were positioned in the same location, not when they were in separate locations. Experiment 2 manipulated the focus of attention and showed that coactivation can occur even for targets positioned in different locations if they are both within the attentional focus. Experiment 3 showed that this attention-induced coactivation does not occur for targets from the same dimensional module. These results suggest that a major role of attention is postperceptual and involves gating of selected responses to executive functions.
Antibodies against the C2 COOH-terminal region discriminate the active and latent forms of the multicatalytic proteinase complex. (1994)

The mouse cDNA homologues of the rat C2, C9, and C5 subunits of the multicatalytic proteinase have been cloned and expressed in bacteria. The respective recombinant proteins were purified and used to produce specific anti-subunit antibodies. Immunoblotting of two-dimensional gels of purified rat liver multicatalytic proteinase showed that the C2 (32-kDa) and C9 (29-kDa) polypeptides are resolved into three and two isoelectric variants, respectively, likely due to post-translational modifications, i.e. phosphorylation, and the presence of two anti-C5 reacting polypeptides (25.5 and 23 kDa). Epitope mapping of the anti-C2-specific antibody with different constructs of the recombinant C2 protein allowed us to determine that one major epitope of this anti-C2 antibody is located within the last 9-11 amino acids of the C2 polypeptide. Affinity purified antibodies directed against the C2 COOH-terminal were able to discriminate the active and latent forms of the multicatalytic proteinase, supporting the conclusion that the C2 protein found in the active form of the enzyme is a polypeptide of 28 kDa, produced by the loss, at least, of the last 9-13 amino acids (DEPAEKADEPMEH) of the intact C2 (32-kDa) component. By in vitro treatment of the latent form of the enzyme with elastase, we show the conversion of the C2 (32-kDa) component to a 28-kDa protein with loss of recognition by the anti-C2 COOH-terminal affinity purified antibodies, but this limited degradation of the C2 component did not have any significant effect on the proteolytic activity (assayed with myelin basic protein and fluorogenic peptides) of the multicatalytic proteinase. It is suggested that the proteolytic cleavage of the C2 COOH-terminal region may be involved in the regulation of the interaction of the multicatalytic proteinase with other cellular proteins and/or in the translocation of the complex to the nucleus.
Colleagues: Richard B. Russell and His Apprentice, Lyndon B. Johnson. (1995)

Journal Article Colleagues: Richard B. Russell and His Apprentice, Lyndon B. Johnson. By John A. Goldsmith. (Washington: Seven Locks, 1993. xxii, 221 pp. $18.95, ISBN 0-929765-23-0.) Get access Gilbert C. Fite Gilbert C. Fite Emeritus University of Georgia, Athens, Georgia Search for other works by this author on: Oxford Academic Google Scholar Journal of American History, Volume 81, Issue 4, March 1995, Page 1819, https://doi.org/10.2307/2081835 Published: 01 March 1995
Topical Dermal Application of Essential Oils Attenuates the Severity of Adjuvant Arthritis in Lewis Rats (2011)

This study was aimed at examining the effect of an ointment containing essential oils (EO) on the severity of adjuvant arthritis (AA), an experimental model of human rheumatoid arthritis (RA), in Lewis rats and to define the underlying mechanisms. At the onset of AA, the rats received topical application twice daily of an ointment containing 20% EO or placebo ointment. The synovial fluid (SF) and synovium-infiltrating cells (SIC) of rats were tested for pro-inflammatory cytokines TNF-α and IL-1β. The hind paws and skin were examined histologically. The activity/level of matrix metalloproteinases (MMPs) and anti-mycobacterial heat-shock protein 65 (Bhsp65) antibodies were tested. Arthritic rats treated with ointment containing EO developed less severe clinical arthritis compared with the controls, and this activity was attributable to EO and not to the carrier oil. The levels of TNF-α and IL-1β, and the activity of MMPs in SF and SIC-lysate were significantly reduced in EO-treated arthritic rats compared with the controls. However, the levels of anti-Bhsp65 antibodies were unaffected by treatment. Thus, topical dermal delivery of EO-containing ointment down-modulates the severity of AA in Lewis rats by inhibiting defined mediators of inflammation. Such ointments should be tested in patients with RA and other arthritic conditions.