gebhart/patrepeval huggingface dataset:
Search for direct pair production of supersymmetric top quarks decaying to all-hadronic final states in pp collisions at $$\sqrt{s} = 8\;\text {TeV} $$ s = 8 TeV (2016)

Results are reported from a search for the pair production of top squarks, the supersymmetric partners of top quarks, in final states with jets and missing transverse momentum. The data sample used in this search was collected by the CMS detector and corresponds to an integrated luminosity of 18.9[Formula: see text] of proton-proton collisions at a centre-of-mass energy of 8[Formula: see text] produced by the LHC. The search features novel background suppression and prediction methods, including a dedicated top quark pair reconstruction algorithm. The data are found to be in agreement with the predicted backgrounds. Exclusion limits are set in simplified supersymmetry models with the top squark decaying to jets and an undetected neutralino, either through a top quark or through a bottom quark and chargino. Models with the top squark decaying via a top quark are excluded for top squark masses up to 755[Formula: see text] in the case of neutralino masses below 200[Formula: see text]. For decays via a chargino, top squark masses up to 620[Formula: see text] are excluded, depending on the masses of the chargino and neutralino.
Nanoscale Imaging of Charge Carrier and Exciton Trapping at Structural Defects in Organic Semiconductors (2016)

Charge carrier and exciton trapping in organic semiconductors crucially determine the performance of organic (opto-)electronic devices such as organic field-effect transistors, light-emitting diodes, or solar cells. However, the microscopic origin of the relevant traps generally remains unclear, as most spectroscopic techniques are unable to simultaneously probe the electronic and morphological structure of individual traps. Here, we employ low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS) as well as tight-binding calculations derived from ab initio calculations to image the localized electronic states arising at structural defects in thin C60 films (<10 ML). The spatially and spectrally resolved STM-induced luminescence at these states reveals an enhanced radiative decay of excitons, which is interpreted in terms of the local symmetry lowering and the trapping of excitons by an X-trap. The combined mapping of the STM-induced luminescence, electronic structure, and morphology thus provides new insights into the origin and characteristics of individual exciton traps in organic semiconductors and offers new avenues to study charge carrier and exciton dynamics on molecular scales.
Long-term follow-up after temporal lobe resection for lesions associated with chronic seizures (1997)

A follow-up study was conducted on 60 patients who had standard en bloc anterior temporal lobe resection, including mesio-temporal structures, as treatment for temporal lobe lesions associated with chronic, medically intractable seizures. Lesions were identified as glial tumors, hamartomas, or vascular malformations. Long-term outcome was assessed in terms of seizure frequency and certain psychosocial sequelae. Seizure onset occurred at an average age of 15 years (median = 13.5 years), and patients experienced seizures for an average of 13 years prior to surgery. The mean time of follow-up was 8.4 years post-surgery (median = 6 years). The Kaplan-Meier curve at median follow-up showed a seizure-free rate of 80%. Late seizure recurrence was documented for three patients; two had been seizure free for 10 years and one for 15 years after surgery before re-onset of seizures in the absence of tumor recurrence. A prolonged history of seizures prior to surgery was associated with a poorer seizure outcome (p = 0.06), suggesting that secondary epileptogenesis at sites distant to the lesion may develop with years of uncontrolled seizures. There was a low tumor recurrence rate of 3.3% (two cases). The psychosocial outcome was generally good, with 67% working or engaged in educational studies, and improvement noted in 59% of cases for one or more of the psychosocial factors investigated. This study confirms that anterior temporal lobe resection for temporal lesions associated with chronic seizures is a successful treatment with a high seizure-free rate following surgery and good psychosocial outcome.
Identification of a New Lactone Contributing to Overripe Orange Aroma in Bordeaux Dessert Wines via Perceptual Interaction Phenomena (2014)

Recent studies have demonstrated the existence of a typical sensory concept for Bordeaux dessert wines, including the world famous wines of Sauternes. Volatile compounds from several chemical families (thiols, aldehydes, and lactones) were identified and correlated with aromatic typicality in these wines. However, these studies were unable to indicate "key" aromas of overripe fruits, especially overripe orange. The alternative strategy developed in this research combined both analytical and sensory studies of fractions of dessert wine extracts obtained by semipreparative high-performance liquid chromatography (HPLC). Multidimensional gas chromatography coupled to olfactometry and mass spectrometry (MDGC-O/MS) was applied to some of the HPLC fractions recalling "overripe fruit", and a new lactone, 2-nonen-4-olide, was identified. Reconstitution and omission tests using the HPLC fractions highlighted the importance of specific compounds, particularly 2-nonen-4-olide, in the expression of overripe orange notes. Although this lactone presents minty and fruity odors, its key contribution to the typical aroma of orange in Bordeaux dessert wines was revealed through perceptual blending.
Stability analysis of chatter on a tandem rolling mill (1999)

Abstract Accurate prediction of the onset of chatter is difficult in designing and operating a rolling mill. Both the lack of precise rolling process models and analytical methods for the investigation of mill stability have forced designers and users to rely on experience and trial and error, which are time consuming and cost demanding. A comprehensive rolling process model is introduced to form the foundation of chatter analysis that includes a range of possible process variations. Analytical chatter models for both single and multiple-stand rolling mills are constructed that account for interactions between mill structure and rolling process, as well as between adjacent stands. Stability analysis is performed to formulate criteria for rolling mill design and operation. Finally, simulations and experiments are presented to verify some basic components of the rolling process model that constitute the proposed chatter models.
Progress in OCT based functional cellular resolution retinal imaging in mice: application of temporal super averaging (2019)

Over the last two decades optical coherence tomography (OCT) has become a clinical gold standard in diagnostic and management of many retinal diseases. Following that success, OCT is now becoming a standard tool in studies of animal models of human retinal diseases allowing longitudinal evaluation of disease progression and responses to therapeutic intervention in the single animal. Recent progress in OCT data acquisition and processing allowed successful cellular resolution detection of outer and inner retina functional response to light stimulation both in humans and experimental animals. In this manuscript, we will describe our latest effort of improving cellular contrast in mouse functional retinal imaging by application of volumetric registration and speckle contrast reduction by temporal averaging of volumetric data sets: i.e., temporal Super Averaging. As an example, the current configuration of our multimodal Scanning Light Ophthalmoscopy / Optical Coherence Tomography (SLO/OCT) mice retinal imaging system, as well as data acquisition and processing schemes, will be presented. Experimental results will be discussed in the context of improved morphological and functional probing of mice retinas at cellular resolution. Finally, current limitations and future directions of instrument development with a focus on improved probing of the retinal function will be discussed as well.
Packing-induced brittleness in polyimide- and aluminum-clad fused-silica capillaries (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPacking-induced brittleness in polyimide- and aluminum-clad fused-silica capillariesSoon M. Han and Daniel W. ArmstrongCite this: Anal. Chem. 1987, 59, 11, 1583–1584Publication Date (Print):June 1, 1987Publication History Published online1 May 2002Published inissue 1 June 1987https://pubs.acs.org/doi/10.1021/ac00138a021https://doi.org/10.1021/ac00138a021research-articleACS PublicationsRequest reuse permissionsArticle Views87Altmetric-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
Photonic doping of epsilon-near-zero media (2017)

Doping a semiconductor with foreign atoms enables the control of its electrical and optical properties. We transplant the concept of doping to macroscopic photonics, demonstrating that two-dimensional dielectric particles immersed in a two-dimensional epsilon-near-zero medium act as dopants that modify the medium's effective permeability while keeping its effective permittivity near zero, independently of their positions within the host. The response of a large body can be tuned with a single impurity, including cases such as engineering perfect magnetic conductor and epsilon-and-mu-near-zero media with nonmagnetic constituents. This effect is experimentally demonstrated at microwave frequencies via the observation of geometry-independent tunneling. This methodology might provide a new pathway for engineering electromagnetic metamaterials and reconfigurable optical systems.
Spontaneous mechanical and electrical activities of human calf musculature at rest assessed by repetitive single‐shot diffusion‐weighted MRI and simultaneous surface electromyography (2017)

Visible SMAMs in DWI have shown a close and direct relation to concurrent signals recorded by sEMG. MR-related magnetic fields had no significant effects on findings in sEMG. Hence, appearance of SMAMs in DWI should not be considered as imaging artifact or as effects originating from the special conditions of MR examinations. Spatial and temporal distributions of SMAMs indicate characteristics of spontaneous (microscopic) mechanical muscular action at rest. Therefore, DWI techniques should be considered as non-invasive tools for studying physiology and pathophysiology of spontaneous activities in resting muscle. Magn Reson Med 79:2784-2794, 2018. © 2017 International Society for Magnetic Resonance in Medicine.
Activation of simian virus 40 transcription in vitro by T antigen (1992)

Simian virus 40 is repressed when the viral early gene product large tumor antigen (TAg) binds to specific sites within the viral origin and DNA replication ensues. Late transcription is activated by TAg, even in the absence of viral DNA replication. We show here that TAg produced in human 293 cells can selectively activate Simian virus 40 transcription in a cell-free system. In the absence of DNA binding by TAg, early and late transcription are both activated, as they are in vivo, suggesting that the effect might be mediated by a cellular component(s) utilized by both the early and late promoters. When TAg binds to the viral origin of replication, early transcription is repressed but the late promoter activation is unaffected. Various preparations of TAg differed in their activities, with some able both to bind DNA and to activate transcription and others able to do only one or the other. Since these variations might be explained by variable amounts of associated factors that copurified with TAg, we asked whether a bacterially derived protein could regulate transcription. An NH2-terminal 272-amino-acid fragment of TAg, produced in Escherichia coli as a glutathione S-transferase fusion protein, retains the ability to activate transcription in vitro, similar to that of the full-length protein. Structural features of this region that might be important are discussed.
Absence of APOL1 Risk Variants Protects against HIV-Associated Nephropathy in the Ethiopian Population (2011)

The coinciding absence of HIVAN and the APOL1 risk variants among HIV-infected individuals of Ethiopian ancestry support a Western rather than Pan-African ancestry risk for ESKD, and can readily explain the lack of HIVAN among individuals of Ethiopian ancestry.
Modulation of Fatty Acid and Bile Acid Metabolism By Peroxisome Proliferator-Activated Receptor<i>α</i>Protects Against Alcoholic Liver Disease (2014)

These observations indicate that PPARα plays a protective role to enhance mitochondrial function in response to chronic alcohol consumption by adaptive transcriptional activation and suggest that activation of this nuclear receptor may be of therapeutic value in the treatment for ALD.
Probabilistic Tracking of Pedestrian Movements via In-Floor Force Sensing (2010)

This article presents a probabilistic approach to the tracking and estimation of the lower body posture of users moving on foot over an instrumented floor surface. The latter consists of an array of low-cost force platforms providing intermittent foot-floor contact data with limited spatial resolution. We use this data to track body posture in 3D space using Bayesian filters with a switching state-space model. Potential applications of this work to person tracking and human-computer interaction are described.
From Data to Knowledge in Earth Science, Planetary Science, and Astronomy (2004)

This paper examines three NASA science data archive systems from the Earth, planetary, and astronomy domains, and discusses the various efforts underway to provide their science communities with not only better access to their holdings, but also with the services they need to interpret the data and understand their physical meaning. The paper identifies problems common to all three domains and suggests ways that common standards, technologies, and even implementations be leveraged to benefit each other.
Optimized Packaging Solutions for Multi-Emitter Laser Modules (2021)

Packaged high-power diode lasers have applications in many areas ranging from optoelectronic high density data storage, high power industrial laser for material processing, to medical (chirurgical/aesthetical) applications. The paper presents the development of families of laser modules which, using the same platform and assembly lines, can achieve a specific combination of power, brightness, compactness and cost effectiveness, depending on final application. Results for products emitting at 9XXnm and at 450 nm will be presented, describing the design, the realization and the production.
Social desirability dimensionality: one or two continua? (2020)

Background The objective of this paper is to examine the structure of social desirability. This variable is important in self-report question-naires. Theoretical analyses indicate the existence of at least two dimensions of this construct, but there is no unambiguous em-pirical evidence for such a structure of social desirability. The present research aimed to determine the factor structure of the social desirability construct and the number of its dimensions. Participants and procedure The inductive research strategy was applied and a new pool of questionnaire items was generated. This approach allows for detachment from the existing social desirability assessment instruments. This study focuses on the concepts of social desirability that examinees have, rather than on the content of existing items measuring social desirability. The verification of the social de-sirability structure was performed in three stages. At each stage, the number of items was gradually reduced. The successive phases of the study involved three different samples, respectively, consisting of 657, 415, and 1,709 examinees. Results Initially, at the first stage of the study, two dimensions were detected, but in the two subsequent stages, the second dimension represented acquiescence. The procedure of partialling the mean out of the correlation matrix was applied to eliminate acquies-cence. This dimension is related, as expected, to agreeableness and conscientiousness. It also appeared that the social desirability structure can be confounded by acquiescence in longer questionnaires. Conclusions It is concluded that every item reflects both social desirability and acquiescence, albeit to different extents. A one-dimensional construct of social desirability was finally obtained.
A 50-MHz Multi-kV Power Amplifier for Ion-Beam Accelerator Utilizing an Optimized Toroidal Inductor (2020)

This paper presents the design and implementation of a 50-MHz multi-kV switch-mode power amplifier suitable for propelling ion beams in compact particle accelerators. Ions are accelerated by passing them through a series of plate-pairs driven by large high-frequency ac voltages. High frequency operation allows the overall length of the accelerator to be reduced. The presented power amplifier generates high voltages at high frequencies by utilizing a single switch resonant inverter with a high-quality-factor air-core toroidal inductor. The presence of a single switch facilitates high frequency operation by eliminating the need for complicated gate drive techniques. An analytical method for the design of high-frequency toroidal inductors is also introduced that maximizes the inductor quality factor and enables generation of high voltages without excessive loss. The inductor built using the proposed optimization method is shown to achieve a quality factor of 595, which is in good agreement with the theoretical prediction. A 50-MHz prototype power amplifier designed using the proposed technique is demonstrated to achieve up to 5 kV output voltage.
The Conformation, Location, and Dynamic Properties of the Endocannabinoid Ligand Anandamide in a Membrane Bilayer (2005)

The endogenous cannabinoid ligand anandamide is biosynthesized from membrane phospholipid precursors and is believed to reach its sites of action on the CB1 and CB2 receptors through fast lateral diffusion within the cell membrane. To gain a better insight on the stereochemical features of its association with the cell membrane and its interaction with the cannabinoid receptors, we have studied its conformation, location, and dynamic properties in a dipalmitoylphosphatidylcholine multilamellar model membrane bilayer system. By exploiting the bilayer lattice as an internal three-dimensional reference grid, the conformation and location of anandamide were determined by measuring selected inter- and intramolecular distances between strategically introduced isotopic labels using the rotational echo double resonance (REDOR) NMR method. A molecular model was proposed to represent the structural features of our anandamide/lipid system and was subsequently used in calculating the multispin dephasing curves. Our results demonstrate that anandamide adopts an extended conformation within the membrane with its headgroup at the level of the phospholipid polar group and its terminal methyl group near the bilayer center. Parallel static (2)H NMR experiments further confirmed these findings and provided evidence that anandamide experiences dynamic properties similar to those of the membrane phospholipids and produces no perturbation to the bilayer. Our results are congruent with a hypothesis that anandamide approaches its binding site by laterally diffusing within one membrane leaflet in an extended conformation and interacts with a hydrophobic groove formed by helices 3 and 6 of CB1, where its terminal carbon is positioned close to a key cysteine residue in helix 6 leading to receptor activation.
A COMPARATIVE ASSESSMENT OF DIRECT FLUORESCENCE ANTIBODY, MODIFIED ACID-FAST STAIN, AND SUCROSE FLOTATION TECHNIQUES FOR DETECTION OF CRYPTOSPORIDIUM SERPENTIS OOCYSTS IN SNAKE FECAL SPECIMENS (1995)

Modified acid-fast stain (Mod AFS) of a direct wet smear (DWS), unstained DWS (UDWS), and Sheather's sugar coverslip flotation (SSCF) techniques were compared with the com mercial monoclonal antibody (MAb) test MERIFLUOR? CryptosporidiumlGiardia for direct flu orescence detection of C serpentis oocysts in feces from 40 snakes without clinical signs of infection. MERIFLUOR? test detection sensitivities for purified C. serpentis and C parvum oocysts were compared. The oocysts of C. serpentis and C. parvum showed the same intensity of fluorescence reaction (majority, 3+ to 4+). Sensitivity of the MERIFLUOR? test was 100% for SSCF-derived material and 88% for DWS versus 45% for Mod AFS DWS, 35% for SSCF, and 21% for UDWS. The threshold of MAb detection (4.7 x 103 oocyst/ml), was the same for C. serpentis and C. parvum oocysts and was 16 times higher than the absolute sensitivity of the listed conventional techniques. Conventional techniques underestimated the number of C. serpentis oocysts by an average factor of 5.3 and produced false-negative results an average of 66% of the time. False negatives were 100% when the concentration of oocysts was <7.5 x lOVml. The range of concentration of fecal C. serpentis oocysts (0.4 x 103/ml-1.4 x 107ml, X = 5.0 x lOVml) was an average of three times lower than those reported for C. parvum from humans and other mammals. The MAb detection was more sensitive for C. serpentis oocysts than were conventional techniques, and it eliminated false-negative outcomes and the subjectivity associated with those methods.
<sup>1</sup>H NMRD Profiles of Paramagnetic Complexes and Metalloproteins (2006)

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