gebhart/patrepeval huggingface dataset:
Echo in Optical Lattices: Stimulated Revival of Breathing Oscillations (1997)

We analyze a stimulated revival (echo) effect for the breathing modes of the atomic oscillations in optical lattices. The effect arises from the dephasing due to the weak anharmonicity being partly reversed in time by means of additional parametric excitation of the optical lattice. The shape of the echo response is obtained by numerically simulating the equation of motion for the atoms with subsequent averaging over the thermal initial conditions. A qualitative analysis of the phenomenon shows that the suggested echo mechanism combines the features of both spin and phonon echoes.
Peginterferon beta-1a in multiple sclerosis: 2-year results from ADVANCE (2014)

NCT00906399.
The Myth of the Classic Hydrosere Model of Bog Succession (1996)

The classic hydrosere model of bog succession, which is still often cited and taught by ecologists, proposes that infilling of a shallow lake or pond by organic sediments produces a sequence of vegetation communities beginning with a marsh community of aquatic plants such as sedges, followed by a bog community composed mainly of Sphagnum mosses and various ericaceous shrubs, and culminating in a mature upland or mesic forest. A careful examination of the supporting literature indicates, however, that this model is based almost solely on observations of spatial zonation of vegetation around infilling water bodies. No studies can be found which contain clear quantitative evidence of successional pathways progressing from bog to upland forest. Indeed, numerous studies conclude that patterns of hydrosere succession are not consistent with the classic hydrosere model. Forest age structure, peat stratigraphy, and radiocarbon data presented from two bogs in Schefferville, Quebec, suggest that many bogs in this region, and elsewhere as indicated in the literature, are climax communities formed via both infilling of a water body (terrestrialization) and expansion of bogs into upland forests (paludification). An alternative model of hydrosere succession based on the bog climax hypothesis is presented.
Triradial configurations indicate that expression of the fragile site at Xq27 is non-lethal. (1987)

The staining pattern of BUdR-substituted sister chromatids in triradial configurations associated with the fragile site at Xq27 is reported. The pattern observed in 2nd- and 3rd-generation cells is compatible with the hypothesis that the triradial configurations are caused by mitotic non-disjunction of the distal fragment in the previous mitotic division. This in turn indicates that cells can survive expression of the fragile site in a previous cell cycle.
Protection of mice against lethal endotoxemia by a lipid A precursor (1986)

Lipid X, the major biosynthetic precursor of lipid A, has recently been described. Although lipid X is a mitogen and coagulates the Limulus amebocyte lysate, we found that it is not lethal for mice, even when given in large doses (2 X 10(6) micrograms/kg). Furthermore, lipid X was found to give partial protection against a 100% lethal dose of endotoxin, even if the lipid X was given as late as 6 h after endotoxin challenge.
481 km, 2.5 Gbit/s and 501 km, 622 Mbit/s unrepeateredtransmission using forward error correction and remotelypumped postamplifiers and preamplifiers (1995)

Using forward error correction, a remotely pumped postamplifier and a remotely pumped preamplifier, error-free unrepeatered transmission on nondispersion-shifted fibre is demonstrated over record distances of 481 km at 2.5 Gbit/s and 501 km at 622 Mbit/s.
Biotechnology in Agricultural Chemistry (1987)

Biotechnology has become the scientific buzzword of our age. One definition of "buzz" is "a confused murmur or flurry of activity." To a large extent this is a fitting explanation of what is going on under the diverse umbrella of biotechnology. No doubt the new techniques and tools, and the rapidly expanding knowledge of biology, genetics and biochemistry justify the enthusiasm, popularity, and expectations. Finally, mankind can experience the exuberance of having the power to "create life" with a new dimension. We are learning that this power still has limitations in spite of its great potential. Within this chapter are described some of the exciting scope and breadth of potential applications and products of biotechnology in the areas of crop and microbial production. This treatise is by no means complete or exhaustive, but it will hopefully provide a reasonable list to enlighten the layman and to motivate the expert. In addition, many of the basic tools and techniques used in biotechnology are outlined and described briefly. Some projections on the probabilities or possibilities of success, both short-term and long-term,' as well as patent problems and some views on environmental and health concerns are also discussed.
High-performance polymer molecular sieve membranes prepared by direct fluorination for efficient helium enrichment (2021)

Direct fluorination of membranes with intrinsic microporosity produces robust and aging-resistant membranes with exceptionally high He/CH 4 separation performances, which are particularly useful for enriching He from natural gas.
Wearable and Washable Conductors for Active Textiles (2017)

The emergence of stretchable electronics and its potential integration with textiles have highlighted a challenge: Textiles are wearable and washable, but electronic devices are not. Many stretchable conductors have been developed to enable wearable active textiles, but little has been done to make them washable. Here we demonstrate a new class of stretchable conductors that can endure wearing and washing conditions commonly associated with textiles. Such a conductor consists of a hydrogel, a dissolved hygroscopic salt, and a butyl rubber coating. The hygroscopic salt enables ionic conduction and matches the relative humidity of the hydrogel to the average ambient relative humidity. The butyl rubber coating prevents the loss and gain of water due to the daily fluctuation of ambient relative humidity. We develop the chemistry of dip-coating the butyl rubber onto the hydrogel, using silanes to achieve both the cross-link of the butyl rubber and the adhesion between the butyl rubber and the hydrogel. We test the endurance of the conductor by soaking it in detergent while stretching it cyclically and by machine-washing it. The loss of water and salt is minimal. It is hoped that these conductors open applications in healthcare, entertainment, and fashion.
Motions of a Powered Top with a Spherical Tip on a Curved Surface (1995)

The purpose of this article is to model the dynamics of a top with a finite radius tip on a curved basin in a gravitational field without (and with) energy addition and dissipation. This is an extension of a very general and classical problem and requires development of a method for treating the dynamical interactions between the two curved surfaces. The full nonlinear equations of motion are indicated; however, these equations are complex and do not show the dominant mechanisms that define the system motions. A novel method of “partial linearization” is employed that reduces the equations of motion to a relevant and tractable form in which these mechanisms are clearly exposed. The model and related results are compared with relevant examples from the literature. The movement of the top is simulated by an integration of the fully nonlinear equations of motion and compared with the partially linearized results.
<title>Synthesis and characterization of polymers for nonlinear optical applications</title> (2003)

International audience
Exploring structures and structural phenomena: the derived crystal packing model (2005)

MICROSYMPOSIA C60signals of the snRNPs.As an import adaptor snurportin1 bridges the interaction between the m 3 G-cap bearing snRNPs and the nuclear import receptor importin-, which mediates the interaction with and translocation through the nuclear pore complex.Snurportin1 contains a N-terminal importin--binding (IBB) domain and a m 3 G-capbinding region, which shows no similarity to other known nuclear import factors.We have solved the crystal structure of the m 3 G-cap binding domain of snurportin1 by means of MIRAS, and the structure was refined at 2.4 Å resolution.The crystal structure reveals an unexpected binding mode for the m 3 G-cap, that significantly differs from other cap-binding proteins such as eIF4E and CBP20.The structural basis for the discrimation of m 7 G-cap bearing RNAs by snurportin1 will be discussed.
A system for automated edge finishing (2002)

Three areas of technology required for automated deburring, chamfering, and blending of machined edges are discussed. They are the automatic programming of robot trajectories and deburring processes using information derived from a CAD database, the use of machine vision for locating the workpiece coupled with force control to ensure proper tool contact, and in-process automated inspection of the formed edge. A description is given of the laboratory at which the work was performed and of results from edge finishing experiments
Automated four color CD4/CD8 analysis of leukocytes by scanning fluorescence microscopy using Quantum dots (2006)

Scanning Fluorescence Microscope (SFM) is a new technique for automated motorized microscopes to measure multiple fluorochrome labeled cells (Bocsi et al. Cytometry 2004, 61A:1). The ratio of CD4+/CD8+ cells is an important in immune diagnostics in immunodeficiency and HIV. Therefor a four-color staining protocol (DNA, CD3, CD4 and CD8) for automated SFM analysis of lymphocytes was developed. EDTA uncoagulated blood was stained with organic and inorganic (Quantum dots) fluorochromes in different combinations. Aliquots of samples were measured by Flow Cytometry (FCM) and SFM. By SFM specimens were scanned and digitized using four fluorescence filter sets. Automated cell detection (based on Hoechst 33342 fluorescence), CD3, CD4 and CD8 detection were performed, CD4/CD8 ratio was calculated. Fluorescence signals were well separable on SFM and FCM. Passing and Bablok regression of all CD4/CD8 ratios obtained by FCM and SFM (F(X)=0.0577+0.9378x) are in the 95% confidence interval. Cusum test did not show significant deviation from linearity (P>0.10). This comparison indicates that there is no systemic bias between the two different methods. In SFM analyses the inorganic Quantum dot staining was very stable in PBS in contrast to the organic fluorescent dyes, but bleached shortly after mounting with antioxidant and free radical scavenger mounting media. This shows the difficulty of combinations of organic dyes and Quantum dots. Slide based multi-fluorescence labeling system and automated SFM are applicable tools for the CD4/CD8 ratio determination in peripheral blood samples. Quantum Dots are stable inorganic fluorescence labels that may be used as reliable high resolution dyes for cell labeling.
Qualitative and quantitative analytical techniques for network security assessment (2005)

As attacks upon critical network infrastructures increase in complexity and destructiveness, new methods are needed to aid security administrators in protecting their networks. This paper describes a multistage attack modeling framework in which to explore new techniques for risk-based network security management. The multistage attack modeling foundation employs functional vulnerability specifications, object-oriented network models and attacker capability expressions to support compound vulnerability analysis. It is through this framework that we present quantitative and qualitative techniques for compound vulnerability risk assessment.
Distributed detection of node replication attacks resilient to many compromised nodes in wireless sensor networks (2008)

In large-scale sensor networks, sensor nodes are at high risk of being captured and compromised. Once a sensor node is compromised, all the secret keys, data, and code stored on it are exposed to the attacker. The attacker can insert arbitrary malicious code in the compromised node. Moreover, he can easily replicate it in a large number of clones and deploy them on the network. This node replication attack can form the basis of a variety of attacks such as DoS attacks, and Sybil attacks. Previous studies of node replication attacks have had some drawbacks; they need a central trusted entity or they become vulnerable when many nodes are compromised. Therefore, we propose a distributed protocol for detecting node replication attacks that is resilient to many compromised nodes. Our method does not need any reliable entities and has a high detection rate of replicated nodes. Our analysis and simulations demonstrate our protocol is effective even when there are a large number of compromised nodes.
Fabrication and Properties of an Anisotropic TiO <sub>2</sub> Dielectric Composite (2006)

Thermoplastic co‐extrusion was employed to fabricate an anisotropic dielectric composite based on titanium dioxide with a microcellular architecture with 50 μm macropore channels aligned to create unidirectional porosity. The resulting channeled structure exhibits artificial anisotropic dielectric properties, with the dielectric relative permittivity being 9.6 transverse to the channels and 90 in the longitudinal direction.
Primary pigmented intraocular tumors in animals. (1958)

Summary Primary pigmented intraocular tumors, which may be diktyomas, adenomas, adenocarcinomas, or uveal melanomas, have been reported for horses, cattle, sheep, cats, dogs, fish, a rabbit, and a hen. We have studied a series of fifteen intraocular tumors from dogs, of which three were adenomas, one an adenocarcinoma of the iris and ciliary body, and eleven were malignant melanomas of the uveal tract. Histologically, the melanomas resembled those of man. The biologic behavior was also comparable, inasmuch as some of the melanomas in the dogs extended to the orbit, to the cranial cavity, or metastasized to distant organs. The prognostic criteria of Callender and Wilder, viz., histologic type and reticular fiber content, were applied to our cases. In two instances of metastasis in which a necropsy was available, and in six cases with extraocular extension, there was good correlation between the histologic expectation and the biologic behavior.
Effect of BAL on Trichomonacidal Activity of Some Organic Arsenicals (1947)

1. The condensation with BAL enhances significantly the trichomonacidal effect of Mapharsen.
Epoxy and hydroxy derivatives of (S)-bioallethrin and pyrethrins I and II: synthesis and metabolism (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEpoxy and hydroxy derivatives of (S)-bioallethrin and pyrethrins I and II: synthesis and metabolismTetsu Ando, Robert F. Toia, and John E. CasidaCite this: J. Agric. Food Chem. 1991, 39, 3, 606–611Publication Date (Print):March 1, 1991Publication History Published online1 May 2002Published inissue 1 March 1991https://pubs.acs.org/doi/10.1021/jf00003a034https://doi.org/10.1021/jf00003a034research-articleACS PublicationsRequest reuse permissionsArticle Views145Altmetric-Citations8LEARN 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
Immortalisation of ovarian granulosa and Theca cells of the marmoset monkey Calllithrix jacchus. (2002)

In view of the increasing need for laboratory primates in biomedical research it is desirable to develop appropriate primate-specific cell culture models that could prevent or significantly reduce the increasing use of primary cultures and experiments with living animals. Follicular granulosa and theca cells are essential for the control of hormone-dependent processes such as the ovarian cycle and pregnancy, but also for the occurrence of hormone-dependent diseases. For this reason it is of great interest to know more about control mechanisms existing in these follicular cell types and the effect of pharmacological or toxicological agents on them. An immortalisation protocol for the two ovarian cell types of the marmoset monkey (Callithrix jacchus) has been developed. All cell lines established so far were examined with regard to the maintenance of known, tissue-specific features (e.g. hormone responsiveness and enzyme expression). The results obtained indicate that it is worth while cloning and characterising the cell lines in more detail so that they could be used after an adequate validation as a defined test system both for basic research as well as for pharmacological or toxicological screening.
Fetal Skin Allografts on Newborn Excisional Wounds (2002)

Juliá, Victoria MD, PhD; Sancho, M. Angeles MD, PhD; Martínez, Antonio MD; Albert, Asteria MD, PhD; Morales, Luís MD, PhD Author Information
A Re-Analysis of the Collaborative Knowledge Transcripts from a Noncombatant Evacuation Operation Scenario: The Next Phase in the Evolution of a Team Collaboration Model (2008)

Abstract : The goal of this research was to validate the existence and facilitate a better understanding of the stages and underlying macrocognitive processes of team collaboration. Recently, Letsky, Warner, Fiore, Rosen, and Salas (2007) proposed a revised taxonomy and set of definitions for the underlying macrocognitive major processes and subprocesses of team collaboration. For the present research, communication transcripts collected during Warner, Letsky, and Cowen's (2005) second experiment were recoded using the new taxonomy and definitions (Letsky, et al., 2007) and then re-analyzed. The results enabled an examination of the collaboration stages, macrocognitive major processes, and macrocognitive subprocesses in terms of: 1) their consistency and contribution in the team collaboration process, and 2) the next phase in the evolution of a conceptual model of team collaboration.
BER performance of AGC in high-speed portable internet system (2005)

The paper proposes a practical method for AGC (automatic gain control) in an HPI (high-speed portable Internet) system. Downlink packets in this system consist of preamble symbols for AGC, AFC (automatic frequency control) and other purposes, and data symbols for traffic transmission. We compare the theoretical BER performance with the simulation one and produce an optimum parameter for AGC in this system. The proposed AGC method utilizes the preamble and requires a small amount of hardware. The validity of the proposed method is verified by computer simulation and real implementation.
New alkaloids, Stemoxazolidinones A - F from Stemonae Radix (2013)

Plants belonging to the genus Stemona (family Stemonaceae) are distributed in Southeast Asia, and are known to produce alkaloids of unique structures, which are characterized by incorporating a pyrrolo[ 1,2-a]azepine nucleus. In continuation of our phytochemical investigation of Stemonae Radix, we isolated six new alkaloids, stemoxazolidinones A – F (Although the crude drug has been previously considered to be S. sessilifolia (Miq.) Miq. from morphological features and the marketability of the locality, it was identified as S. tuberose Lour from our reinvestigation of its botanical identity due to its nucleotide sequences of chloroplast DNA petB-petD and trnK-rps16 regions being completely identical to those of S. tuberosa Lour. deposited in GenBank (Accession No. AB490134Tb1 and AB490140Td3)). The structures of stemoxazolidinnones A – C and E were determined by interpretation of their spectroscopic data and those of stemoxazolidinones D and F by X-ray chrystallography. These alkaloids possess a novel structural unit in which an oxazolidin-2-one unit fuses with a pyrrolo[1,2-a]azepine nucleus of the rearranged or normal tuberostemonine-type skeleton, namely, those two ring units are fuse together at positions 1 and 9a or 9 and 9a of the pyrrolo[1,2-a] azepine ring with the nitrogen of the oxazolidin-2-one linking to C-9a to construct a six ring system in the molecule. Such structural features have not been reported in the alkaloid skeleton before. Further, stemoxazolidinones A – C possess a novel carbon framework in their mother skeleton in which the C-1 of a tuberostemonine-type skeleton was rearranged from C-12 to C-11 to form a spiro structure.
Myocarditis and pericarditis (2017)

Transition of acute myocarditis to dilated cardiomyopathy occurs in approximately 20% of patients within a follow-up period of 33 months. Recent research has revealed the adverse prognostic impact of several clinical parameters for this scenario. Acute myocarditis and its sequelae dilated cardiomyopathy and inflammatory cardiomyopathy are often caused by viral infections. Histological evaluation of endomyocardial biopsies is critical for the diagnosis of the cardiomyopathy entity and for the clinical management of around 20% of the patients. Additionally, contemporary diagnostic procedures of endomyocardial biopsies are indispensable for the selection of inflammatory cardiomyopathy patients who will likely benefit from immunosuppression or antiviral (interferon) treatment. Immunoadsorption, with subsequent immunoglobulin substitution, is a further promising immunomodulatory treatment option for dilated cardiomyopathy patients, targeting primarily the anticardiac autoantibodies. Cardiac magnetic resonance has emerged as a valuable diagnostic approach for myocarditis and pericarditis. Myocardial late gadolinium enhancement has been associated with adverse outcome and sudden cardiac death. Bridging of the first 3 months with a wearable cardioverter–defibrillator, until a definitive decision on the implantation of an implantable cardioverter–defibrillator, is a growingly recognized cornerstone in the clinical management of patients with acute myocarditis with depressed left ventricular ejection fraction of <40% and new-onset dilated cardiomyopathy, respectively. Acute pericarditis is labelled idiopathic or suspected viral without adequate proof of the respective aetiology. Non-steroidal anti-inflammatory drugs and colchicine are proven and safe therapeutic mainstays for pericarditis, including the first attack. Pericardiocentesis is a lifesaving treatment of cardiac tamponade. Pericardioscopy and epicardial biopsies can contribute to the aetiological differentiation of pericardial effusions.
Electron beam production for microwave generation using a ferroelectric cathode (2002)

Data is presented on the production of electron beams from a ferroelectric cathode at voltages of order 0.5 MV and current densities of order 100 A/cm/sup 2/ In comparison with data at lower voltages the beam current scales as three halves power of the voltage. An interpretation of this scaling, based on the coupling of electrostatic energy from the ferroelectric to the gun is presented.