gebhart/patrepeval huggingface dataset:
The effect of the interlayer design on the electroluminescence and electrical properties of n-ZnO nanorod/p-type blended polymer hybrid light emitting diodes (2009)

Hybrid light emitting diodes (LEDs) based on n-ZnO nanorods and blended polymers were fabricated and characterized. The blended polymers consisted of a blue emitting polymer and a charge transport polymer. The effect of the interlayer design on the electrical and electroluminescent characteristics of these hybrid LEDs was investigated. We demonstrated that by adding a calcium (2) acetylacetonate [Ca(acac)(2)] layer between the blended polymer layer and the ZnO nanorods, an increase in device performance was observed. The purpose of the extra layer was to act as a band offset stepping layer (offset divider). Moreover, the effect of the stepper layer thickness for this offset stepping layer was studied. The results indicate that LED performance is greatly affected by the presence and thickness of this band offset stepping layer.
State-of-charge estimation for a single Lithium battery cell using Extended Kalman Filter (2011)

An accurate state-of-charge (SOC) estimation is desired in most battery systems. It increases the reliability of the system and extends the lifetime of the battery. This paper proposes an Extended Kalman Filter (EKF) algorithm to estimate the SOC of a Lithium battery cell. To implement the SOC algorithm, an improved Lithium battery cell model is used. The results of the model and EKF algorithm show the effectiveness and ease of implementation of the proposed technique.
Quantum algorithms for group convolution, cross-correlation, and equivariant transformations (2022)

Group convolutions and cross-correlations, which are equivariant to the actions of group elements, are commonly used to analyze or take advantage of symmetries inherent in a given problem setting. Here, we provide efficient quantum algorithms for performing linear group convolutions and cross-correlations on data stored as quantum states. Runtimes for our algorithms are poly-logarithmic in the dimension of the group and the desired error of the operation. Motivated by the rich literature on quantum algorithms for solving algebraic problems, our theoretical framework opens a path for quantizing many algorithms in machine learning and numerical methods that employ group operations.
Pedestrian detection based on automotive radar (2007)

Automotive radar sensors are able to measure the target range, azimuth angle and radial velocity simultaneously with high accuracy and update rate even in multiple target situations. Target recognition of radar objects is still a technical challenge and one of the most important topics to support future advanced driver assistance systems (ADAS). There is especially a large interest to distinguish between radar echo signals from human beings and from other objects in the target recognition scheme. Therefore, this paper elucidates the motion sequence of a walking pedestrian and describes this complicated process in a suitable technical model with different reflection points and related Doppler frequencies. Based on some measurements with a 24 GHz radar sensor several signal features are generated, which are used for the target recognition procedure. (4 pages)
Computational Evidence for a Metastable Polar Isomer of Beryllium Borohydride (1997)

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTComputational Evidence for a Metastable Polar Isomer of Beryllium BorohydrideJamal C. Saeh and John F. StantonView Author Information Institute for Theoretical Chemistry Departments of Chemistry and Biochemistry The University of Texas at Austin Austin, Texas 78712Cite this: J. Am. Chem. Soc. 1997, 119, 31, 7390–7391Publication Date (Web):August 6, 1997Publication History Received9 April 1997Revised2 June 1997Published online6 August 1997Published inissue 1 August 1997https://pubs.acs.org/doi/10.1021/ja971124nhttps://doi.org/10.1021/ja971124nrapid-communicationACS PublicationsCopyright © 1997 American Chemical SocietyRequest reuse permissionsArticle Views96Altmetric-Citations6LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Chemical structure,Group theory,Hydrogen,Molecular structure,Polarity Get e-Alerts
Behavioral and EEG Evidence for Auditory Memory Suppression (2016)

The neural basis of motivated forgetting using the Think/No-Think (TNT) paradigm is receiving increased attention with a particular focus on the mechanisms that enable memory suppression. However, most TNT studies have been limited to the visual domain. To assess whether and to what extent direct memory suppression extends across sensory modalities, we examined behavioral and electroencephalographic (EEG) effects of auditory TNT in healthy young adults by adapting the TNT paradigm to the auditory modality. Behaviorally, suppression of memory strength was indexed by prolonged response time (RTs) during the retrieval of subsequently remembered No-Think words. We examined task-related EEG activity of both attempted memory retrieval and inhibition of a previously learned target word during the presentation of its paired associate. Event-related EEG responses revealed two main findings: (1) a centralized Think > No-Think positivity during auditory word presentation (from approximately 0-500 ms); and (2) a sustained Think positivity over parietal electrodes beginning at approximately 600 ms reflecting the memory retrieval effect which was significantly reduced for No-Think words. In addition, word-locked theta (4-8 Hz) power was initially greater for No-Think compared to Think during auditory word presentation over fronto-central electrodes. This was followed by a posterior theta increase indexing successful memory retrieval in the Think condition. The observed event-related potential pattern and theta power analysis are similar to that reported in visual TNT studies and support a modality non-specific mechanism for memory inhibition. The EEG data also provide evidence supporting differing roles and time courses of frontal and parietal regions in the flexible control of auditory memory.
Error concealment for SNR scalable video coding in wireless communication (2000)

A mandatory requirement for future wireless multimedia communication is the availability of error resilient media codecs. This work discusses error detection and concealment techniques for a layered scalable video decoder, based on the SNR scalability option of the H.263 standard. A concealment method is proposed which uses error frequency and error location statistics for efficient hiding of transmission errors. The designed decoder allows error robust decoding with acceptable image quality even for highly corrupted video sequences up to bit error rates of 10 -3 , optimizing the image quality specifically for two-layer coded sequences. Simulation results show that scalable video coding outperforms single-layer coding under typical wireless conditions even if no priority or increased protection is applied to the base layer. The proposed two- layer concealment method yields a consistent improvement of up to 5 dB in image quality.
Mitochondrial research in translational medicine (2010)

This volume features the proceedings of the In the 6th Asian Society for Mitchondrial Research and Medicine and highlights recent advances in mitochondria research. The contributions focus on mitochondrial research in translational medicine and cover virtually every aspect of mitochondrial dynamics, mitochondrial function and dysfunction, free radical biology related to mitochondrial dysfunction, cell apoptosis and autophagy, and disease mechanisms associated with aging, neurodegeneration, mitochondrial disease, metabolic disease, and cancer. NOTE: Annals volumes are available for sale as individual books or as a journal. For information on institutional journal subscriptions, please visit www.blackwellpublishing.com/nyas. ACADEMY MEMBERS: Please contact the New York Academy of Sciences directly to place your order (www.nyas.org). Members of the New York Academy of Science receive full-text access to the Annals online and discounts on print volumes. Please visit http://www.nyas.org/MemberCenter/Join.aspx for more information about becoming a member
MRI-derived cardiac fat modelling for use in ultrasound tissue labelling and classification (2022)

The presence and thickness of cardiac adipose tissue (CAT) has been extensively correlated with the progression of coronary artery disease. Although CAT is difficult to identify visually with ultrasound relative to other imaging modalities, it is desirable to bolster the efficacy of this modality due to its inexpensiveness and quick acquisition times. This study explores the viability of leveraging the increased visibility of CAT in MR images of the heart to label regions of CAT in ultrasound. This process entails using B-spline interpolation to address the anisotropy of MR volume segmentations, creating a continuous three-dimensional (3D) representation of the patient’s heart muscle and the surrounding CAT. The left myocardium, which is visible in both MRI and ultrasound, is then used to register an ultrasound scan from the same patient with the MRI-derived cardiac model. The intersection of the two-dimensional (2D) ultrasound plane with the 3D MRI-derived model allows regions in the ultrasound to be labelled according to tissue type. Spectral parameters are extracted from ultrasound data from these labelled regions and used to train a tissue type classifier. Using a random forest classifier, this process achieved a tissue classification accuracy of 76.67% for CAT, 80% for myocardium, and 63.33% for blood. The classifier achieved a sensitivity of 60.87% for CAT, 53.85% for myocardium, and 62.5% for blood. The specificity was 86.49% for CAT, 87.23% for myocardium, and 63.88% for blood.
Techniques de mesure de grandeurs électriques adaptées aux nano-circuits (2016)

Cet article passe en revue les differentes techniques fondees sur la microscopie a force atomique, capables de fournir une information electrique avec une resolution spatiale de l'ordre du nanometre ou de la dizaine de nanometres. Les grandeurs mesurees peuvent etre le courant, la capacite, le champ ou le potentiel electrique. Chaque technique est decrite precisement au moyen d'exemples tires de la recherche en micro-nanoelectronique, et le perimetre de ses performances est delimite. Les aspects metrologiques de telles mesures appliquees aux nanocircuits sont mis en avant, les sources d'erreur identifiees et des pistes d'amelioration proposees.
Is the measurement of thymidylate synthase to determine suitability for treatment with 5-fluoropyrimidines ready for prime time? (2003)

Several studies have been published during the past few years relating measurements of the expression of the enzyme, TS,[3][1] to respond to 5FU and FdUrd, as well as to overall outcome of patients with colorectal carcinoma. These investigations have given rise to hope that, like tumor measurements
Clinical and epidemiological features of pneumonia in young men in a closed community (2016)

Streptococcus pneumoniae is the leading pathogen of community-acquired pneumonia (CAP) in adults. Therefore, vaccination is an important preventive measure against CAP. Methods. Clinical and epidemiological features of CAP were studied in young conscript soldiers (n = 114) aged 18 to 26 years who had been vaccinated using the 23-valent polysaccharide pneumococcal vaccine PPV23 (Sanofi Pasteur, France) in previous 30 days and in unvaccinated patients (n = 151). Clinical examination, laboratory blood tests, sputum microbiological examination, quantitative C-reactive protein (CRP) measurement, molecular examination of nasopharyngeal smears using polymerase chain reaction (PCR), chest X-ray and pulse oximetry were used. Pneumococcal antigen was determined in urine using immunochromatography (Binax NOW S. pneumoniae test, USA). Results. Established risk factors of CAP in men were low anthropometric parameters (weight, body mass index, chest circumference), chronic upper airway diseases, history of repeated pneumonias, and being unvaccinated against pneumococcus. In first 100 days of military conscript, the risk of CAP was 6.96 (95%CI: 3.39–14.58; p &lt; 0.001) in unvaccinated men; clinical course was more severe. Vaccination against S.pneumoniae shortened the disease by 2.2 days in average. S. pneumoniae was found in nasopharyngeal smears of 48.8% of CAP patients. Leading pathogens of CAP in vaccinated and unvaccinated patients were Haemophilus influenzae (24.1% vs 20.0%, respectively; p &gt; 0.05), Streptococcus spp. (19.0% vs 36.0%, respectively; р = 0.48), and S. pneumoniae (10.3% vs 4.1%, respectively; p &gt; 0.05) according to sputum microbiological results. The urine pneumococcal antigen test was positive in 2.9% of vaccinated and in 1.4% of unvaccinated CAP patients. Conclusion. Vaccination with PPV23 could reduce the rate of pneumococcal CAP in high-risk patient groups.
GCKR Links the Bcr-Abl Oncogene and Ras to the Stress-Activated Protein Kinase Pathway (1999)

The Bcr-Abl oncogene, found in Philadelphia chromosome-positive myelogenous leukemia (CML), activates Ras and triggers the stress-activated protein kinase (SAPK or Jun NH2-terminal kinase [JNK]) pathway. Interruption of Ras or SAPK activation dramatically reduces Bcr-Abl–mediated transformation. Here, we report that Bcr-Abl through a Ras-dependent pathway signals the serine/threonine protein kinase GCKR (Germinal Center Kinase Related) leading to SAPK activation. Either an oncogenic form of Ras or Bcr-Abl enhances GCKR catalytic activity and its activation of SAPK, whereas inhibition of GCKR impairs Bcr-Abl–induced SAPK activation. Bcr-Abl mutants that are impaired for GCKR activation are also unable to activate SAPK. Consistent with GCKR being a functional target in CML, GCKR is constitutively active in CML cell lines and found in association with Bcr-Abl. Our results indicate that GCKR is a downstream target of Bcr-Abl and strongly implicate GCKR as a mediator of Bcr-Abl in its transformation of cells.
BARC: Learning to Regress 3D Dog Shape from Images by Exploiting Breed Information (2022)

Our goal is to recover the 3D shape and pose of dogs from a single image. This is a challenging task because dogs exhibit a wide range of shapes and appearances, and are highly articulated. Recent work has proposed to directly regress the SMAL animal model, with additional limb scale parameters, from images. Our method, called BARC (Breed-Augmented Regression using Classification), goes beyond prior work in several important ways. First, we modify the SMAL shape space to be more appropriate for representing dog shape. But, even with a better shape model, the problem of regressing dog shape from an image is still challenging because we lack paired images with 3D ground truth. To compensate for the lack of paired data, we formulate novel losses that exploit information about dog breeds. In particular, we exploit the fact that dogs of the same breed have similar body shapes. We formulate a novel breed similarity loss consisting of two parts: One term encourages the shape of dogs from the same breed to be more similar than dogs of different breeds. The second one, a breed classification loss, helps to produce recognizable breed-specific shapes. Through ablation studies, we find that our breed losses significantly improve shape accuracy over a baseline without them. We also compare BARC qualitatively to WLDO with a perceptual study and find that our approach produces dogs that are significantly more realistic. This work shows that a-priori information about genetic similarity can help to compensate for the lack of 3D training data. This concept may be applicable to other animal species or groups of species. Our code is publicly available for research purposes at https://barc.is.tue.mpg.de/.
Measurements of ψ(2S) and X(3872) → J/ψπ + π − production in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector (2017)

Differential cross sections are presented for the prompt and non-prompt production of the hidden-charm states X(3872) and ψ(2S), in the decay mode J/ψπ$^{+}$ π$^{−}$, measured using 11.4 fb$^{−1}$ of pp collisions at $ \sqrt{s}=8 $ TeV by the ATLAS detector at the LHC. The ratio of cross-sections X(3872)/ψ(2S) is also given, separately for prompt and non-prompt components, as well as the non-prompt fractions of X(3872) and ψ(2S). Assuming independent single effective lifetimes for non-prompt X(3872) and ψ(2S) production gives $ {R}_B=\frac{\mathrm{\mathcal{B}}\left(B\to X(3872)+\mathrm{any}\right)\mathrm{\mathcal{B}}\left(X(3872)\to J/\psi {\pi}^{+}{\pi}^{-}\right)}{\mathrm{\mathcal{B}}\left(B\to \psi (2S)+\mathrm{any}\right)\mathrm{\mathcal{B}}\left(\psi (2S)\to J/\psi {\pi}^{+}{\pi}^{-}\right)}=\left(3.95\pm 0.32\left(\mathrm{s}\mathrm{tat}\right)\pm 0.08\left(\mathrm{s}\mathrm{y}\mathrm{s}\right)\right)\times {10}^{-2} $ separating short- and long-lived contributions, assuming that the short-lived component is due to B$_{c}$ decays, gives R$_{B}$ = (3.57 ± 0.33(stat) ± 0.11(sys)) × 10$^{−2}$, with the fraction of non-prompt X(3872) produced via B$_{c}$ decays for p$_{T}$(X(3872)) &gt; 10 GeV being (25 ± 13(stat) ± 2(sys) ± 5(spin))%. The distributions of the dipion invariant mass in the X(3872) and ψ(2S) decays are also measured and compared to theoretical predictions.
A Hands-On Approach to Advanced Undergraduate Instruction in Control and Circuitry in Power Electronics (2007)

We have developed a hands-on kit to teach control and circuits in power electronics. The kit consists of only discrete components to improve on what is missing from the contemporary IC design experience: the insight and intuition that arises from the building and testing of circuits where there is physical access to every node. The kit is modular and configurable, allowing students to explore the design space with different topologies and component values, while trading-off bandwidth, power, and accuracy, among other things.
Paper Preparation for the 2007 AMOS Conference Proceedings NONLINEAR OPTICAL PHASE CONJUGATION AMPLIFIER FOR REMOTE OBJECT TRACKING AND CHARACTERIZATION (2007)

An active laser tracking system (ALTS) that performs pointing, tracking and characterization of a remote object, such as high-altitude aircraft, satellite, or reentry vehicle, requires a sufficient level of energy density delivered to its surface. Satisfactory performance of a proposed ALTS concept has been demonstrated previously at relatively short distances though severe atmospheric turbulence conditions [1]. Long range tracking for airborne and space objects with low intensity returned signal introduces serious challenges for an efficient and functioning ALTS. Solution to the two key technical challenges of (i) very low intensity of a returned signal; and (ii) compensation of optical aberrations along an extended beam path, is based upon the Brillouin Enhanced Four Wave Mixing (BEFWM) scheme. The results of analysis and experimental studies of the initial ALTS implementation illustrate that the BEFWM-based approach allows for an end-to-end solution to the problem of remote object pointing, tracking and characterization. Since the BEFWM approach provides a high-gain amplification of a weak coherent optical signal, this technique can also be used to reconstruct a coherent imaging of the remote object from its low amplitude wave function .
Resuscitation with Diaspirin Crosslinked Hemoglobin in a Pig Model of Hemorrhagic Shock (1995)

The efficacy of Diaspirin Crosslinked Hemoglobin (DCLHb) as a resuscitative fluid in hemorrhagic shock was compared to another colloid solution (human serum albumin, HSA) and a crystalloid solution (Lactated Ringer's, LR). Hemorrhage (35 mL/kg) was followed by isovolemic exchange then volume replacement. This modeled the clinical situation where resuscitative fluids are administered prior to stopping the hemorrhage, the hemorrhage is stopped, then blood volume is restored. Four combinations of resuscitative fluids were evaluated during isovolemic exchange: volume replacement: DCLHb:LR, HSA:LR, HSA:HSA and LR:LR. All doses were 10 mL/kg:35 mL/kg except LR:LR which was 10 mL/kg:125 mL/kg. Volume replacement was followed by a stabilization period and reinfusion of shed blood (35 mL/kg). MAP increased most rapidly using DCLHb (from 48 to 102 mmHg after 10 min of isovolemic exchange) and was maintained for at least 2 hours. Arterial oxygen content and acid-base status were significantly improved after resuscitation with DCLHb:LR vs. other resuscitative therapies. In conclusion, DCLHb:LR was an effective resuscitative therapy in treatment of hemorrhagic shock.
vlsAntigenic Variation Systems of Lyme DiseaseBorrelia: Eluding Host Immunity through both Random, Segmental Gene Conversion and Framework Heterogeneity (2015)

Antigenic variation is defined as a hereditable, reversible variation in an antigenic structure that occurs during the course of infection at a rate higher than would be expected for standard recombination or mutation mechanisms. Many bacterial and protozoal pathogens have developed antigenic variation systems in which surface antigens can be continually altered as a means of evading the constant onslaught of adaptive antibody and T cell responses (1). In 1997, an elaborate antigenic variation system was identified in Borrelia burgdorferi B31 (2). Because of sequence similarity between this system and the previously characterized variable major protein (VMP) system of relapsing fever bacteria, it was termed theVMP-likesequence (vls) locus. Its expression site, called vls Expressed (vlsE), undergoes remarkable sequence variation involving segmental gene conversion events from vls silent cassettes. This review describes what is currently known about the structure, properties, role in host-pathogen interactions, recombination process and evolution of the vls system.