gebhart/patrepeval huggingface dataset:
Potential Use of Pyriproxyfen for Control ofAedes aegypti(Diptera: Culicidae) in Iquitos, Perú (2005)

The effects of pyriproxyfen were tested against a local population of Aedes aegypti (L.) in Iquitos, Perú. Bioassays showed that, when applied to late instars, pyriproxyfen prevented adult emergence at extremely low concentrations (LC50 = 0.012 ppb). There was no adult emergence from water sampled from storage tanks that had been seeded with the equivalent of 50-83 ppb (AI) pyriproxyfen. Five months after treatment, despite constant dilution of these tanks, water sampled from these sources continued to be lethal to larvae and pupae. Additional studies, carried out in the laboratory, showed that groups of five or 20 female blood-fed mosquitoes, exposed to residues of approximately 0.003 g (AI) pyriproxyfen/m2, could transfer enough chemical to new oviposition sites to prevent approximately 80% of adult emergence from larvae developing in that previously uncontaminated water. Moreover, although the fecundity of the adult females used as the transfer vehicles in these tests was unaffected, the subsequent eclosion of the eggs that these mosquitoes laid was decreased by 70-90%. It also was shown that, at very high concentrations (>30,000 ppb), pyriproxyfen-treated water sources were as likely to be used as oviposition sites as untreated sources. These data suggest that treated sites might act as sinks for mosquito reproduction and moreover that such sites might act as dissemination sources for the horizontal transfer of larvicides to new environments by mature females. We review the literature on the environmental and human health effects of this compound and discuss its potential for use as a mosquito control agent in the field.
Mouse model for exoerythrocytic stages of Plasmodium falciparum malaria parasite. (1992)

Research on the exoerythrocytic (EE) stages of human malaria parasites has been hindered because of the lack of an easily available suitable animal model. We report here an approach to produce mature EE-stage Plasmodium falciparum parasites by using severe combined immunodeficient (scid) mice with transplanted human hepatocytes. Transplantation of human hepatocytes into scid mice (scid hu-hep), their subsequent intravenous infection with P. falciparum sporozoites, and the development of mature liver-stage merozoites was achieved. Immunofluorescent staining of scid hu-hep kidney tissue sections demonstrated the presence of circumsporozoite protein (early during infection), merozoite surface antigen 1, and liver schizont antigen 1. The scid hu-hep model can serve as a source of human malaria liver-stage parasites, decreasing the need for nonhuman primates. Use of this model will facilitate characterization of EE-stage antigens and the assessment of stage-specific chemotherapeutic agents and candidate vaccines.
Metal dusting corrosion studies using thermogravimetric experiment coupled with acoustic emission analysis (2012)

International audience
Opening the dopomine D4 door (1996)

Hidaku, K.; Tada, S.; Matsumoto, M.; Ohmori, J.; Maeono, K.; Yamaguchi, T.; Seeman, Philip; Van Tol, Hubert HM Author Information
Electron-transfer quenching of excited diphenylmethyl radicals (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectron-transfer quenching of excited diphenylmethyl radicalsBradley R. Arnold, J. C. Scaiano, and W. G. McGimpseyCite this: J. Am. Chem. Soc. 1992, 114, 25, 9978–9982Publication Date (Print):December 1, 1992Publication History Published online1 May 2002Published inissue 1 December 1992https://pubs.acs.org/doi/10.1021/ja00051a033https://doi.org/10.1021/ja00051a033research-articleACS PublicationsRequest reuse permissionsArticle Views250Altmetric-Citations35LEARN 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
Combined Matched Filter/Interpolator For Digital Receivers (1996)

Publication in the conference proceedings of EUSIPCO, Trieste, Italy, 1996
Surfactant Concentration and End Effects on Foam Flow in Porous Media, TR-120 (2001)

This project studies foam flow behavior at a variety of surfactant concentrations using experiments and a numerical model. Thus, the foam behavior examined spans from strong to weak.
Immunohistochemical Detection of Hairy Cell Leukemia in Paraffin Sections Using a Highly Effective CD103 Rabbit Monoclonal Antibody (2013)

Detection of the integrin subunit CD103 is a useful diagnostic tool in the diagnosis of hairy cell leukemia (HCL). Currently, flow cytometric analysis (FC) and frozen section immunohistochemistry (IHC) represent the only available methods of detection. This study is the first to describe the successful use of a CD103 antibody to identify HCL and HCL-variant in paraffin sections of formalin- or Bouin solution- fixed specimens (n = 68) using an immunoperoxidase technique. In other B-cell lymphoproliferative disorders that morphologically may resemble HCL, including chronic lymphocytic leukemia/small lymphocytic lymphoma (n = 32), mantle cell lymphoma (n = 23), lymphoplasmacytic lymphoma (n = 27), follicular lymphoma (n = 7), and marginal zone lymphoma (n = 13), lymphoid cells are nonreactive for CD103. In HCL, the CD103 staining pattern is predominantly membranous with delineation of delicate cytoplasmic projections. This CD103 antibody is an extremely valuable addition to the IHC panel for the diagnosis of HCL, especially in cases lacking FC analysis.
Phase transition and phase stability in [110]-, [001]-, and [111]-oriented 0.68Pb(Mg1/3Nb2/3)O3−0.32PbTiO3 single crystal under electric field (2008)

The phase transition and the phase stability in 0.68Pb(Mg1/3Nb2/3)O3–0.32PbTiO3 (PMN-0.32PT) single crystals under different electric fields were investigated over a temperature range from −20 to 200 °C using the dielectric property. Crystals with different orientations were used in the research. First, it is found that the intermediate monoclinic or orthorhombic phases are involved in the phase transition from the rhombohedral to tetragonal phase and that the appearance and stability of the intermediate phases as well as the phase path are strongly dependent on factors, such as the history of the sample and the direction and strength of the electric field. The transition behavior from the rhombohedral to tetragonal phase for the samples during the field-heating process is much more complex than that during the field-cooling process. Second, for the ferroelectric-to-paraelectric phase transition, it is found that the dielectric-constant peak actually reflects two processes: one is the ferroelectric relaxor process and the other is the tetragonal to cubic phase transition. The electric field shifts both transitions toward high temperature at different rates, which results in a “λ-like” dielectric-constant peak in [111]-oriented samples. The results indicate that the polar regions in the ferroelectric relaxors should have a spontaneous polarization along the [111] direction. Finally, the temperature–electric field (T-E) phase diagrams for crystals under electric field along different directions. It is also found that the piezoelectric activities are strongly related to the appearance of the intermediate phases.
Multiphysics modelling, quantum chemistry and risk analysis for corrosion inhibitor design and lifetime prediction (2015)

Organic corrosion inhibitors can provide an effective means to extend the life of equipment in aggressive environments, decrease the environmental, economic, health and safety risks associated with corrosion failures and enable the use of low cost steels in place of corrosion resistant alloys. To guide the construction of advanced models for the design and optimization of the chemical composition of organic inhibitors, and to develop predictive tools for inhibitor performance as a function of alloy and environment, a multiphysics model has been constructed following Staehle's principles of "domains and microprocesses". The multiphysics framework provides a way for science-based modelling of the various phenomena that impact inhibitor efficiency, including chemical thermodynamics and speciation, oil/water partitioning, effect of the inhibitor on multiphase flow, surface adsorption and self-assembled monolayer formation, and the effect of the inhibitor on cathodic and anodic reaction pathways. The fundamental tools required to solve the resulting modelling from a first-principles perspective are also described. Quantification of uncertainty is significant to the development of lifetime prediction models, due to their application for risk management. We therefore also discuss how uncertainty analysis can be coupled with the first-principles approach laid out in this paper.
A single episode of haematospermia can be safely managed in the community (2010)

A single episode of haematospermia is usually benign. Flexible cystoscopy and abdominal ultrasound appear valueless. Assessment should consist of clinical examination (including testicular), DRE and PSA testing. It can safely be managed in the community and only referred in the presence of, abnormal examination, elevated PSA or recurrent symptoms.
Efficiency and Fairness in Distributed Wireless Networks Through Self-interference Cancellation and Scheduling (2009)

Handling interference is one of the major challenges in the design of multi-user distributed wireless systems. In current systems, interference is managed through carrier sensing mechanisms such as CSMA/CA and through MAC algorithms based on random back-off. However, the asymmetry in channel sensing inevitably causes degraded throughput and fairness issues, such as those caused by hidden terminal problems. We propose ContraFlow, a solution based on self-interference cancellation and innovative scheduling mechanisms that increases spatial reuse, eliminates hidden terminals, and rectifies decentralized coordination inefficiencies among nodes, thereby improving fairness. Self-interference cancellation is a technique allowing a node to cancel its own transmitted signal and hence to successfully receive data while transmitting on the same channel. We demonstrate the feasibility of such techniques in a low power WPAN setting, using Lyrtech software-defined radios. Self-interference cancellation repairs carrier sensing, making it possible to successfully eliminate hidden terminal problems, even when using current multi-user MAC protocols; but it also provides the opportunity to design new distributed MAC scheduling algorithms that increase the spatial reuse and solve most of the fairness problems associated with current algorithms. We use simulations to illustrate the performance gains achieved when ContraFlow is used and we obtain both a throughput increase over current systems, as well as a significant improvement in fairness.
Computer-aided breast cancer detection and diagnosis of masses using difference of Gaussians and derivative-based feature saliency (1997)

A new model-based vision (MBV) algorithm is developed to find regions of interest (ROI's) corresponding to masses in digitized mammograms and to classify the masses as malignant/benign. The MBV algorithm is comprised of five modules to structurally identify suspicious ROI's, eliminate false positives, and classify the remaining as malignant or benign. The focus of attention module uses a difference of Gaussians (DoG) filter to highlight suspicious regions in the mammogram. The index module uses tests to reduce the number of nonmalignant regions from 8.39 to 2.36 per full breast image. Size, shape, contrast, and Laws texture features are used to develop the prediction module's mass models. Derivative-based feature saliency techniques are used to determine the best features for classification. Nine features are chosen to define the malignant/benign models. The feature extraction module obtains these features from all suspicious ROI's. The matching module classifies the regions using a multilayer perceptron neural network architecture to obtain an overall classification accuracy of 100% for the segmented malignant masses with a false-positive rate of 1.8 per full breast image. This system has a sensitivity of 92% for locating malignant ROI's. The database contains 272 images (12 b, 100 microm) with 36 malignant and 53 benign mass images. The results demonstrate that the MBV approach provides a structured order of integrating complex stages into a system for radiologists.
Data set for Coexistence of dynamical delocalization and spectral localization through stochastic dissipation (2019)

The provided experimental data is obtained by time-resolved measurements of light pulse intensities within the coupled optical fibre loops upon injecting a single initial pulse in a certain lattice configuration.
Experimental investigation of commercial small diameter dental implants in porcine mandibular segments (2016)

Small diameter (mini) dental implants have become more popular in recent years as alternatives to classical implant treatment in clinical cases with critical bony situations. However, an in-depth scientific analysis of the mechanical and biomechanical effects of small diameter implants has not yet been published. The aim of the present study was to investigate experimentally different commercial mini implants by measuring their displacements under immediate loading. Twelve commercially available mini implants were measured. Implants were inserted into porcine mandibular segments and loaded by means of a predefined displacement of 0.5 mm of the loading system. The implants were loaded at an angle of 30° to the implant long axis using the self-developed biomechanical hexapod measurement system. Implant displacements were registered. The experimental results were compared to the numerical ones from a previous study. Measured implant displacements were within the range of 39-194 μm. A large variation in the displacements was obtained among the different implant systems due to the different designs and thread profiles. Comparing experimental and numerical results, the displacements that were obtained numerically were within the range of 79-347 μm. The different commercial mini implants showed acceptable primary stability and could be loaded immediately after their insertion.
A 5.8 GHz Linear Power Amplifier in a Standard 90nm CMOS Process using a 1V Power Supply (2007)

A fully integrated 5.8 GHz class AB linear power amplifier (PA) in a standard 90 nm CMOS process using thin oxide transistors utilizes a novel on-chip transformer power combining network. The transformer combines the power of four push-pull stages with low insertion loss over the bandwidth of interest and is compatible with standard CMOS process without any additional analog or RF enhancements. With a 1 V power supply, the PA achieves 24.3 dBm maximum output power at a peak drain efficiency of 27% and 20.5 dBm output power at the 1 dB compression point.
Preparation of large unilamellar vesicles (1982)

Single (unilamellar) and oligolamellar lipid bilayer vesicles of large diameter have great potential in membrane research. In particular, large unilamellar bilayer vesicles (diam. >50 m) would permit the insertion of microelectrodes for the measurement of the electrical properties of lipid bilayer membranes of different compositions. Furthermore, vesicles large enough to be observed by light microscopy could be fused with cells with the aid of the electric field method [l-4]. Since vesicles (liposomes) can be loaded with macromolecules, this might be an elegant means of transferring proteins or plasmids into cells. Large vesicles with different lipid compositions and only one unit membrane would also be ideal objects for the identification of the mechanism of cell rotation in the presence of an alternating electrical iield [ 5-71. Several methods for preparation of liposomes have been reported [8-l 11, yielding either very small liposomes (20-200 nm) or mixtures of unilamellar and multilamellar liposomes (<l /xn) [9-l 11. Only the method in [9] allows the preparation of large oligolamellar liposomes on a large scale. Here, we describe a simple procedure for obtaining a high yield of single bilayer vesicles, almost uncontaminated by multilamellar vesicles. With this method it is possible to produce large vesicles made up of various lipids. The method is based on the use of thin lipid films and relatively high temperature (i.e. 7O”C, which is much higher than the phase transition temperature).
Working on the Edge: Precarious Employment in Organizational Research (2021)

Research in the organizational sciences routinely assumes that the relationship between the worker and the organization is both relatively permanent and reciprocal. In this paper we define and discuss the construct of precarious employment – a work arrangement that, from the perspective of the employee, lacks stability and creates unpredictability, uncertainty, and risk from the perspective of the worker. We explore a relatively new way of measuring precarious employment and then propose and test whether precarious employment moderates the relationship between person-job fit and turnover intentions. We do this to illustrate the importance of considering and testing whether traditional findings and models in organizational research may differ between precarious workers and those in more stable positions. We found that the precarious employment scores were internally consistent and predictive of job attitudes such as job satisfaction and career satisfaction. Person-job fit scores were negatively correlated with turnover intentions (as predicted), but the effect was weak and non-significant. Crucial to our central purpose, employment precarious scores significantly moderated the relationship between fit and turnover intentions, albeit in a different form than expected. Limitations of the design and suggestions for future research were provided.
Characterization of the Growth and Morphology of a BSL-2 Coccidioides posadasii Strain That Persists in the Parasitic Life Cycle at Ambient CO2 (2022)

<i>Coccidioides</i> is a dimorphic fungus responsible for Valley Fever and is the cause of severe morbidity and mortality in the infected population. Although there is some insight into the genes, pathways, and growth media involved in the parasitic to saprophytic growth transition, the exact determinants that govern this switch are largely unknown. In this work, we examined the growth and morphology of a <i>Coccidioides posadasii</i> strain (<i>C. posadasii</i> S/E) that efficiently produces spherules and endospores and persists in the parasitic life cycle at ambient CO<sub>2</sub>. We demonstrated that <i>C. posadasii</i> S/E remains virulent in an insect infection model. Surprisingly, under spherule-inducing conditions, the <i>C. posadasii</i> S/E culture was found to be completely hyphal. Differential interference contrast (DIC) and transmission electron microscopy (TEM) revealed unexpected cellular changes in this strain including cell wall remodeling and formation of septal pores with Woronin bodies. Our study suggests that the <i>C. posadasii</i> S/E strain is a useful BSL-2 model for studying mechanisms underlying the parasitic to saprophytic growth transition-a morphological switch that can impact the pathogenicity of the organism in the host.
Synthesizing of salicylealdehyde using magnesium phenoxide and its mass analyzing characterization (2013)

Phenolic derivatives can be formylated in the ortho position selectively. In this research at first magnesiumphenoxide was synthesised by the reaction of white powder of magnesium methoxide and phenol in toluene as a nonpolar solvent. Secondly para-formaldehyde was reacted with magnesium phenoxides. The resulting product was purified after several times washing with acid and distilled water and then its characterization byMS and FTIR spectrum analysis. FTIR spectrum deliberation shows the good orthoselectivity of the product. MS spectrum Deliberation shows an ionic peak in m/z 122 as phenolic base peak and with abundances of 100%, another peak in m/z 121 with abundance of 93.75 elucidate the elimination of phenolic proton % and the final peak in m/z 93 with abundance of 87.5 assigned to the elimination of CHO from deprotonated phenol. These analyzing which has less been asserted in the articles show the synthesis of product with this method besides of having high orthoselectivity has about 87% yields.
Studies on the role of antigen-presenting cells in the systemic suppression of contact hypersensitivity by UVB radiation. (1986)

Exposure of mice to UVB radiation produces a highly selective, systemic immunosuppression associated with the appearance of suppressor T lymphocytes. Suppression of delayed hypersensitivity to hapten-coupled syngeneic cells has been shown to result from an altered distribution of antigen-presenting cells. The purpose of this study was to determine whether an alteration in the activity of antigen-presenting cells could account for the systemic suppression of contact hypersensitivity (CHS) by UVB radiation. Fluorescein isothiocyanate (FITC) was used for contact sensitization because it uses different antigen-presenting cells than does oxazolone to induce CHS. Our previous studies demonstrated that CHS to oxazolone was suppressed by UVB irradiation. In these studies, we show that exposure of mice to UVB radiation before epicutaneous application of FITC onto unirradiated skin markedly decreased the CHS response to FITC painted on unexposed ears. Cyclophosphamide-sensitive suppressor T cells were detectable in the spleens of mice exhibiting decreased CHS. The antigen-presenting activity of cells in lymph nodes draining the site of epicutaneous sensitization (DLN cells) was assessed by injecting them into the hind footpads of syngeneic recipients and measuring the CHS response to FITC 6 days later. Viable DLN cells from UVB-irradiated, FITC-sensitized mice were equal to those from unirradiated, FITC-sensitized mice in their ability to induce CHS in normal recipients. No sensitization resulted when killed DLN cells were used for immunization, indicating that sensitization was not caused by reprocessing of antigen by host cells. We conclude that impairment of the CHS reaction in UVB-irradiated mice does not appear to be blocked at an initial step of antigen uptake, processing, or presentation, but must be impaired at some other step in the immunologic pathway.
Selective Synthesis of Cellulose-Type Copolymers by Ring-Opening Copolymerization of 1,4-Anhydro-α-D-ribopyranose Derivatives (1991)

Abstract Stereoregular cellulose-type copoymers, (1→4)-β-D-ribopyranan derivatives, were prepared by selective ring-opening copolymerization of 1,4-anhydro-2,3-O-benzylidene- and -2,3-di-O-t-butyldimethylsilyl-α-D-ribopyranoses with antinomy pentachloride as catalyst at 0 °C. Being subjected to branching reaction, the copolymer can be converted into branched (1→4)-β-D-ribopyranans.
Laser-ablation sampling for inductively coupled plasma distance-of-flight mass spectrometry (2014)

Laser-ablation (LA) sample introduction is combined with a new simultaneous multi-element determining, velocity-based ICPMS approach called distance-of-flight mass spectrometry (DOFMS).