gebhart/patrepeval huggingface dataset:
A comparison of shot‐encoding schemes for wave‐equation migration (2013)

ABSTRACT In the last decade the seismic imaging industry has begun collecting data volumes with a substantial amount of data redundancy through new acquisition geometries including: wide‐azimuth, rich‐azimuth and full‐azimuth geometries. The increased redundancy significantly improves image quality in areas with complex geology, but requires considerably greater computational power to construct an image because of the additional data and the need to use advanced imaging algorithms. One way to reduce the computational cost of processing such datasets is to blend shot‐records, using shot‐encoding, together prior to imaging which reduces the number of migrations necessary for imaging. The downside to doing so is that blending introduces strong, non‐physical, cross‐talk noise into the final image. By carefully choosing the shot‐encoding scheme, we can reduce the additional noise inserted into the image and maximally reduce the number of migrations necessary. We describe a theory of blended imaging that explains all shot‐encoding schemes, and use the theory to design a new class of encodings that use amplitude weights instead of phase‐shifts or time‐delays. We are able to use amplitude encoding to produce blended images of the same quality as previous encoding schemes at a similiar computational cost. Furthermore, we compare the results of amplitude encoding with the results from well‐known shot‐encoding schemes from previous work including: plane‐wave migration, random‐time delay, modulated‐shot migration, and decimated shot‐record migration. In our comparison, we find that plane‐wave migration is in many ways an optimal shot‐encoding scheme. However, we find that plane‐wave migration produces results that are comparable to decimated shot‐record migration when the total cost of imaging is taken into account, thereby calling into question the utility of shot‐encoding in general. Overall, this work questions the potential for shot‐encoding in standard (shot‐record) seismic imaging because blended imaging does not appear to sufficiently reduce the cost of imaging given the quality of the blended image compared to decimated shot‐record migration.
Reactivity Ratios for Some Phenolic Copolymerization Systems (1981)

Abstract Reactivity ratios of some p-substituted aniline-p-hydroxy-benzoic acid copolymerization systems have been determined by the linear graphical method of Kelen and Tüdös. It was found that the copolymerization parameters are affected by the nature of acidic functional groups present in the comonomers, and the sequence of reactivity of comonomers is found to be of the same order as that of their acid strengths.
Effects of nomegestrol acetate on carbohydrate metabolism. (1994)

The effects of nomegestrol acetate on carbohydrate metabolism were investigated in 20 premenopausal women presenting with menstrual disturbances. The progestogen was administered from day 5 to day 24 of the cycle, over six consecutive cycles, at a dosage (5 mg/d) known to inhibit ovulation. A 3 hour oral glucose tolerance test (OGTT) was performed prior to the hormonal intake and at 3 months and 6 months of therapy. Blood glucose and insulin were measured before and for 3 hours after a 75 g glucose load, and the glucose and insulin areas under the curves (AUC) were calculated. The fasting glycosylated hemoglobin and fructosamine were also determined. Treatment did not induce any significant changes in plasma glucose or insulin glucose values during the oral glucose tolerance test, in glucose and insulin areas under the curves or in glycosylated protein levels. Two women with impaired glucose tolerance were not worsened during therapy. These data suggest that nomegestrol acetate is free from adverse effects on glucose tolerance after 6 months treatment.
Foreign Policy and the 1979 Election Campaign (1997)

Whether it mattered or not, however, if circumstances were ever to be propitious for changes in British foreign policy, then they seemed to be so in the spring of 1979. The international system was sliding towards both economic recession and the ‘second Cold War’.1 The order essentially created by American power at the end of the Second World War seemed to be in danger of disintegrating in the face of challenges from radical nationalist movements in the Third World and a newly assertive USSR whose leaders spoke of a decisive shift in the international correlation of forces. The efforts of the US to arrest the decline in its international position, either by direct intervention as in the case of Vietnam, or indirect support as in the case of Iran, had not worked. Indeed, they had further weakened both the political and economic position of the West. Yet, when the Carter administration briefly attempted to step back from competition with the USSR or the search to control developments in the Third World, the consequences were widely interpreted in terms of a crisis of American leadership.
ChemInform Abstract: SYNTHESIS OF SOME AZOMETHINES AND HYDRAZONES HAVING EXPECTED ANTITUBERCULOUS ACTIVITY (1979)

Abstract Durch Kondensation der N‐Naphthochinonyl‐p‐aminobenzaldehyde (I) mit den Anilinen (II) werden die Azomethine (III) synthetisiert; entsprechend entstehen durch Kondensation mit Hydrazinen die Hydrazone (IV).
Investigation on permeation properties of liquids into HTV silicone rubber materials (2014)

In this paper, the permeation properties of three types of liquids into HTV silicone rubber with different Alumina Tri-hydrate (ATH) contents had been investigated by weight gain experiments. The influence of differing exposure conditions on the diffusion into silicone rubber, in particular the effect of solution type, solution concentration, and test temperature were explored. Experimental results indicated that the liquids permeation into silicone rubber obeyed anomalous diffusion ways instead of the Fick diffusion model. Moreover, higher temperature would accelerate the permeation process, and silicone rubber with higher ATH content absorbed more liquids than that with lower ATH content. Furthermore, the material properties of silicone rubber before and after liquid permeation were examined using Fourier infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM), respectively. The permeation mechanisms and process were discussed in depth by combining the weight gain experiment results and the material properties analyses.
SF2487, a new polyether antibiotic produced by Actinomadura. (1990)

A new antibiotic SF2487 has been isolated from the culture broth of Actinomadura sp. SF2487. The structure of antibiotic SF2487 was determined by spectroscopic analyses of the sodium salt and X-ray diffraction analysis of the silver salt. The antibiotic represents a new member of polyether group antibiotics known as the acyltetronic acid type 4. The antibiotic is weakly active against Gram-positive bacteria and exhibits antiviral activity against influenza virus in vitro.
SMAQ: a measurement-based tool for traffic modeling and queuing analysis. II. Network applications (1998)

For pt. I see ibid. p.56-65 (1998). SMAQ is a measurement-based tool for integration of traffic modeling and queuing analysis. It can be used in a variety of network design areas. For instance, it can be used as a traffic generator to generate various traces for network testing. It also provides numerical solutions of the queue length and loss rate performance for transport of multimedia traffic. Several application modules are built into the tool for the evaluation of statistical multiplexing, buffer dimensioning, and link bandwidth allocation. Other examples include the evaluation of traffic shaping, local-congestion control, and the modeling of wireless channel dynamics. As one will find, the SMAQ tool indeed provides a solution technique for network engineers to solve many of the current design issues.
Langerhans Cells and T Lymphocyte Subsets in the Murine Vagina and Cervix1 (1991)

Immunization in the vagina can lead to the production of specific antibodies in the luminal fluid of this organ. To help understand the immune mechanisms involved in this process, we have studied the occurrence of Langerhans cells (LCs), macrophages, natural killer cells, and T and B lymphocytes in the murine vagina and cervix during the estrous cycle. LCs in the epithelia expressed Ia, F4/80, NLDC-145, and CD45, but not Mac-1, Moma-1, and Moma-2; double-labeling demonstrated phenotypic heterogeneity in this population Ia+, NLDC-145+; Ia+, NLDC-145-; Ia+, F4/80+; Ia+, F4/80-; Ia- F4/80+. T lymphocytes of both helper and cytotoxic/suppressor types were also present in the epithelia, sometimes in close association with LCs, but natural killer cells were not observed. The stroma of the vagina and cervix contained LCs (or interdigitating cells) and macrophages but few T lymphocytes and no B lymphocytes, natural killer cells, or lymphoid nodules. These observations confirm and extend previous reports that the murine vagina and cervix contain epithelial LCs and T lymphocytes and support the suggestion that antigens in the vagina and cervix, as in the epidermis, may be recognized and presented to the immune system by epithelial LCs. However, the paucity of T cells and the absence of B cells and lymphoid nodules from the stroma suggest that antigen presentation may not occur locally but at another site such as in the draining lymph nodes.
Credit Scoring by Fuzzy Support Vector Machines with a Novel Membership Function (2016)

Due to the recent financial crisis and European debt crisis, credit risk evaluation has become an increasingly important issue for financial institutions. Reliable credit scoring models are crucial for commercial banks to evaluate the financial performance of clients and have been widely studied in the fields of statistics and machine learning. In this paper a novel fuzzy support vector machine (SVM) credit scoring model is proposed for credit risk analysis, in which fuzzy membership is adopted to indicate different contribution of each input point to the learning of SVM classification hyperplane. Considering the methodological consistency, support vector data description (SVDD) is introduced to construct the fuzzy membership function and to reduce the effect of outliers and noises. The SVDD-based fuzzy SVM model is tested against the traditional fuzzy SVM on two real-world datasets and the research results confirm the effectiveness of the presented method.
A novel EVA composite with simultaneous flame retardation and ceramifiable capacity (2015)

Ethylene-vinyl acetate (EVA) filled with glass dust (GD), glass fiber (GF), OMMT, and melamine cyanurate (MCA) was developed as a ceramifiable flame-retardant polymer composite for cables and insulated wires.
PTB'S TIME AND FREQUENCY ACTIVITIES IN 2006: NEW DCF77 ELECTRONICS, NEW NTP SERVERS, AND CALIBRATION ACTIVITIES (2006)

The Physikalisch-Technische Bundesanstalt (PTB) maintains the German legal time scale, disseminates time and frequency for both business and the general public, and undertakes research to improve its capabilities. In this report, we focus on the new time dissemination installations for the general public, which is comprised of the new low frequency transmitter DCF77 electronics and the new NTP servers. We briefly discuss the calibration activities concerning PTB's external time links for the generation of International Atomic Time and report the result of the latest calibration of the link to the United States Naval Observatory.
A method of estimating parameters and assessing reliability for models of steady state groundwater flow: 1. Theory and numerical properties (1977)

A new nonlinear least squares solution for the Hydrogeologic parameters, sources and sinks, and boundary fluxes contained in the equations approximately governing two‐dimensional or radial steady state groundwater motion was developed through use of a linearization and iteration procedure applied to the finite element discretization of the problem. Techniques involving (1) use of an iteration parameter to interpolate or extrapolate the changes in computed parameters and head distribution at each iteration and (2) conditioning of the least squares coefficient matrix through use of ridge regression techniques were proven to induce convergence of the procedure for virtually all problems. Because of the regression nature of the solution for the parameter estimation problem, classical methods of regression analysis are promising as an aid to establishing approximate reliability of computed parameters and predicted values of hydraulic head. Care must be taken not to compute so many parameters that the stability of the estimates is destroyed. Reduction of the error variance by adding parameters is desirable provided that the number of degrees of freedom for error remains large.
Vaginal Irritation Models: The Current Status of Available Alternative and <i>In Vitro</i> Tests (2011)

Mucosal surfaces, such as the vaginal epithelium, are natural barriers to infection that are constantly exposed to bacteria and viruses, and are therefore potential sites of entry for numerous pathogens. The vaginal epithelium can be damaged mechanically, e.g. by the incorrect use of objects such as tampons, and by chemicals that are irritating or corrosive. Consequently, this can lead to an increase in susceptibility to further damage or infection. Pharmaceutical, cosmetic and personal care products that are specifically formulated for application onto human external mucosae can occasionally induce undesirable local or systemic side-effects. Therefore, the compatibility of applied materials with this mucosal surface represents a key issue to be addressed by manufacturers. The most frequently used method for assessing vaginal mucosal irritation is the in vivo rabbit vaginal irritation test. However, the current emphasis in the field of toxicology is to use alternative in vitro methods that reduce, refine, and replace the use of animals, and which model and predict human, not animal, responses. Such an approach is of particular interest to the personal care and cosmetic industries in their effort to comply with European legislative measures, such as the 7th Amendment to the EU Cosmetics Directive that does not permit the marketing of cosmetic products if they, or their ingredients, have been tested for irritation responses in animals. The focus of this review is to provide an overview of the alternative and in vitro tests that are currently available for vaginal mucosal irritation assessment, and which are already used, or may become useful, to establish the safety of newly-designed products for human use.
Functional VIP receptors in the human mucus-secreting colonic epithelial cell line CL.16E (1989)

A polarized human clonal intestinal cell line exhibiting mucus secretion (Cl.16E) was used to study the expression and function of vasoactive intestinal peptide (VIP) receptors in mucus-secreting cells. Cl.16E cells expressed one class of receptors with a KD of 0.13 nM and a capacity of 67 fmol/mg protein. Covalent labeling of receptors followed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis showed a receptor protein with a Mr of 63,000 in Cl.16E cells. VIP stimulated adenylate cyclase activity in membranes from Cl.16E cells with an ED50 of 0.06 nM. In conditions where carbachol stimulated mucin secretion from filter-grown Cl.16E cells, VIP, dibutyryl adenosine 3',5'-cyclic monophosphate (DbcAMP), or forskolin did not alter basal secretion. However, VIP strongly potentiated carbachol-induced mucin secretion, since carbachol alone and VIP plus carbachol induced a 1.6- and 3.6-fold increase of mucin secretion above basal, respectively. This potentiating effect of VIP was mimicked by DbcAMP or forskolin. It was observed for VIP concentrations in the 0.1-100 nM range (ED50, 2 nM). VIP elicited a dramatic increase of intracellular cAMP levels in filter-grown Cl.16E cells with a dose-response curve (ED50, 4 nM) very similar to that observed for the modulation of mucin secretion. These studies suggest that the clonal cell line Cl.16E may be an invaluable cellular model for evaluating the neurohormonal control of mucus secretion.
High performance infrastructure for visually-intensive CSCW applications (1994)

We describe a scalable CSCW infrastructure designed to handle heavy-weight data sets, such as extremely large images and video. Scalability is achieved through exclusive use of reliable and unreliable multicast protocols. The infrastructure uses a replicated architecture rather than a centralized architecture, both to reduce latency and to improve responsiveness. Use of 1) reliable (multicast) transport of absolute, rather than relative, information sets, 2) time stamps, and 3) a last-in-wins policy provide coherency often lacking in replicated architectures. The infrastructure allows users to toggle between WYSIWIS and non-WYSIWIS modes. That, coupled with effective use of multicast groups, allows greatly improved responsiveness and performance for managing heavy-weight data.
Distributed Dataset Synchronization in Named Data Networking (2017)

Distributed dataset synchronization (sync for short) provides an important abstraction for multi-party data-centric communication in the Named Data Networking (NDN) architecture. Several NDN Sync protocols have been developed so far, each takes a different design approach than the others. They all enable a group of distributed nodes to publish to, and consume data from, a shared dataset and maintain a consistent state about the dataset among the participants. However, each of them has its own issue in the protocol design that causes inefficiency in the dataset synchronization. In addition, none of them provides built-in membership management support, making it difficult to remove departed nodes from the sync protocol state (maintained by every node in the group). As a result, existing applications running on top of sync have to implement group management by themselves, either at the application layer or by extending the underlying sync protocol.In this dissertation we first present a comparative study on the design of existing sync protocols. Our analysis focuses on the data naming convention, the representation of dataset namespace, and the state synchronization mechanism. Through the side-by-side comparison on those key design aspects, we identify common design patterns in the existing protocols and articulate their design issues.Based on the lessons learned from the comparative study, we design a new sync protocol called VectorSync that addresses the issues in the existing works and enables new functions. In VectorSync, the state of the shared dataset namespace is concisely represented by version vector, which allows the sync nodes to detect and reconcile inconsistencies efficiently. Every node maintains a consistent view of the current group members through a leader-based membership synchronization mechanism, which also provides the basis for data authentication and access control. Our simulation-based evaluation shows that the VectorSync design improves the efficiency of dataset synchronization compared to the widely used ChronoSync protocol under various network conditions and provides efficient group membership management without affecting the synchronization speed.At the end of this dissertation we present the design of a few pilot applications in the Internet of Things (IoT) area that utilize different NDN sync protocols to enable important functions that are often difficult to achieve under the current TCP/IP-based IoT architecture. These new applications demonstrate the importance of NDN sync and illustrate the unique sync-based application design patterns that arise from NDN's data-centric communication model.
Specific Activity of Class II Histone Deacetylases in Human Breast Cancer Cells (2008)

Although numerous studies have underlined the role of histone deacetylases (HDAC) in breast physiology and tumorigenesis, little is known on the particular contribution of the various classes of HDACs in these processes. Using estrogen receptor-alpha (ERalpha)-positive MCF-7 breast cancer cells, the effects of MC1575 and MC1568, two novel class II-specific HDAC inhibitors, were analyzed on cell proliferation, apoptosis, and estrogen signaling. The specificity of these HDAC inhibitors was validated by measuring histone and alpha-tubulin acetylation and by the specific in vitro inhibition of recombinant HDAC4 using histone and nonhistone substrates, contrasting with the lack of inhibition of class I HDACs. In addition, MC1575 did not inhibit class I HDAC gene expression, thus confirming the specific targeting of class II enzymes. Similar to trichostatin A (TSA), MC1575 displayed a dose-dependent antiproliferative effect and induced cell cycle arrest although this blockade occurred at a different level than TSA. Moreover, and in contrast to TSA, MC1575 had no effect on MCF-7 cells apoptosis. Interestingly, MC1575 was able to increase p21(waf1/CIP1) mRNA levels but did not regulate the expression of other genes such as cyclin D1, p27, p14(ARF), Bcl2, Baxalpha, Trail-R1, and Trail-R2. Finally, MC1575 strongly induced ERbeta gene expression but did not decrease ERalpha expression, nor did it switch hydroxytamoxifen to an agonist activity. Altogether, these data suggest that the class II HDAC subfamily may exert specific roles in breast cancer progression and estrogen dependence.
Anti-selective Michael addition of thiols and their analogs to nitro olefins (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnti-selective Michael addition of thiols and their analogs to nitro olefinsAkio Kamimura, Hiroyuki Sasatani, Toshihiro Hashimoto, Takashi Kawai, Kenzi Hori, and Noboru OnoCite this: J. Org. Chem. 1990, 55, 8, 2437–2442Publication Date (Print):April 1, 1990Publication History Published online1 May 2002Published inissue 1 April 1990https://pubs.acs.org/doi/10.1021/jo00295a036https://doi.org/10.1021/jo00295a036research-articleACS PublicationsRequest reuse permissionsArticle Views619Altmetric-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-Alertsclose Get e-Alerts
A Rapid, Simple Synthesis and Purification of Abscisic Acid Glucose Ester (1986)

A simple and rapid technique was developed to synthesize abscisic acid glucose ester. The free acid of abscisic acid (ABA) was combined with CsHCO(3) to form the Cs salt of ABA. The Cs salt of ABA was then combined with acetobromo-alpha-d-glucose tetraacetate, and the tetraacetate derivative of abscisic acid glucose ester was formed. Acetate groups were selectively removed from the glucose moiety with a crude enzyme preparation derived from Helianthus annuus seeds. Abscisic acid glucose ester was purified via silica gel column chromatography and identified by micro NMR.