gebhart/patrepeval huggingface dataset:
Photoluminescence and electronic structure of thallium(1+) dicyanoaurate(1-): evidence for relativistic effects in thallium-gold and gold-gold interactions (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoluminescence and electronic structure of thallium(1+) dicyanoaurate(1-): evidence for relativistic effects in thallium-gold and gold-gold interactionsZerihun Assefa, Frank DeStefano, Mohammad A. Garepapaghi, Joseph H. LaCasce Jr., Steve Ouellete, Michael R. Corson, Jeffrey K. Nagle, and Howard H. PattersonCite this: Inorg. Chem. 1991, 30, 14, 2868–2876Publication Date (Print):July 1, 1991Publication History Published online1 May 2002Published inissue 1 July 1991https://pubs.acs.org/doi/10.1021/ic00014a010https://doi.org/10.1021/ic00014a010research-articleACS PublicationsRequest reuse permissionsArticle Views212Altmetric-Citations59LEARN 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
Highly Miniaturized and Performed UWB Bandpass Filter Embedded into PCB with SrTiO3Composite Layer (2012)

In this paper, a highly miniaturized and performed UWB bandpass filter has been newly designed and implemented by embedding all the passive elements into a multi-layered PCB substrate with high dielectric <TEX>$SrTiO_3$</TEX> composite film for 3.1 - 4.75 GHz compact UWB system applications. The high dielectric composite film was utilized to increase the capacitance densities and quality factors of capacitors embedded into the PCB. In order to reduce the size of the filter and avoid parasitic EM coupling between the embedded filter circuit elements, it was designed by using a <TEX>$3^{rd}$</TEX> order Chebyshev circuit topology and a capacitive coupled transformation technology. Independent transmission zeros were also applied for improving the attenuation of the filter at the desired stopbands. The measured insertion and return losses in the passband were better than 1.68 and 12 dB, with a minimum value of 0.78 dB. The transmission zeros of the measured response were occurred at 2.2 and 5.15 GHz resulting in excellent suppressions of 31 and 20 dB at WLAN bands of 2.4 and 5.15 GHz, respectively. The size of the fabricated bandpass filter was <TEX>$2.9{\times}2.8{\times}0.55(H)mm^3$</TEX>.
Modification of peptidoglycan precursors is a common feature of the low-level vancomycin-resistant VANB-type Enterococcus D366 and of the naturally glycopeptide-resistant species Lactobacillus casei, Pediococcus pentosaceus, Leuconostoc mesenteroides, and Enterococcus gallinarum (1994)

The biochemical basis for the acquired or natural resistance of various gram-positive organisms to glycopeptides was studied by high-pressure liquid chromatographic analysis of their peptidoglycan UDP-MurNAc-peptide precursors. In all cases, resistance was correlated with partial or complete replacement of the C-terminal D-Ala-D-Ala-containing UDP-MurNAc-pentapeptide by a new precursor with a modified C terminus. Nuclear magnetic resonance analysis by sequential assignment showed that the new precursor encountered in Enterococcus faecium D366, a strain belonging to the VANB class, which expresses low-level resistance to vancomycin, was UDP-MurNAc-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-lactate, identical to that previously found in the VANA class, which expresses high-level resistance to vancomycin. High-pressure liquid chromatographic analyses, composition determinations, and digestion by R39 D,D-carboxypeptidase demonstrated the exclusive presence of the new precursor in Lactobacillus casei and Pediococcus pentosaceus, which are naturally highly resistant to glycopeptides. The low-level natural resistance of Enterococcus gallinarum to vancomycin was found to be associated with the synthesis of a new precursor identified as a UDP-MurNAc-pentapeptide containing a C-terminal D-serine. The distinction between low and high levels of resistance to glycopeptides appeared also to depend on the presence or absence of a substantial residual pool of a D-Ala-D-Ala-containing UDP-MurNAc-pentapeptide.
The Effect of Carbonation, Benzoic Acid and pH on the Growth Rate of a Soft Drink Spoilage Yeast as determined by a Turbidostatic Continuous Culture Apparatus (1964)

Summary: A turbidostatic continuous culture apparatus is described, which has been used to determine the effect of variations in carbonation, benzoic acid and pH on the growth rate of a soft drink spoilage yeast. Results are presented and a model is derived which, it is believed, enables the spoilage potential of many carbonated soft drinks to be predicted.
On the Activity of the Corticostriatal Networks during Spike-and-Wave Discharges in a Genetic Model of Absence Epilepsy (2004)

Absence seizures are characterized by impairment of consciousness associated with widespread bilaterally synchronous spike-and-wave discharges (SWDs) in the electroencephalogram (EEG), which reflect highly synchronized oscillations in thalamocortical networks. Although recent pharmacological studies suggest that the basal ganglia could provide a remote control system for absence seizures, the mechanisms of propagation of epileptic discharges in these subcortical nuclei remain unknown. In the present study, we provide the first description of the electrical events in the corticostriatal pathway during spontaneous SWDs in the genetic absence epilepsy rats from Strasbourg (GAERS), a genetic model of absence epilepsy. In corticostriatal neurons, the SWDs were associated with suprathreshold rhythmic depolarizations in-phase with local EEG spikes. Consistent with this synchronized firing in their excitatory cortical afferents, striatal output neurons (SONs) exhibited, during SWDs, large-amplitude rhythmic synaptic depolarizations. However, SONs did not discharge during SWDs. Instead, the rhythmic synaptic excitation of SONs was shunted by a Cl(-)-dependent increase in membrane conductance that was temporally correlated with bursts of action potentials in striatal GABAergic interneurons. The reduced SON excitability accompanying absence seizures may participate in the control of SWDs by affecting the flow of cortical information within the basal ganglia circuits.
Rippling instabilities in suspended nanoribbons (2012)

Morphology mediates the interplay between the structure and electronic transport in atomically thin nanoribbons such as graphene as the relaxation of edge stresses occurs preferentially via out-of-plane deflections. In the case of end-supported suspended nanoribbons that we study here, past experiments and computations have identified a range of equilibrium morphologies, in particular, for graphene flakes, yet a unified understanding of their relative stability remains elusive. Here, we employ atomic-scale simulations and a composite framework based on isotropic elastic plate theory to chart out the morphological stability space of suspended nanoribbons with respect to intrinsic (ribbon elasticity) and engineered (ribbon geometry) parameters, and the combination of edge and body actuation. The computations highlight a rich morphological shape space that can be naturally classified into two competing shapes, bendinglike and twistlike, depending on the distribution of ripples across the interacting edges. The linearized elastic framework yields exact solutions for these rippled shapes. For compressive edge stresses, the body strain emerges as a key variable that controls their relative stability and in extreme cases stabilizes coexisting transverse ripples. Tensile edge stresses lead to dimples within the ribbon core that decay into the edges, a feature of obvious significance for stretchable nanoelectronics. The interplay between geometry and mechanics that we report should serve as a key input for quantifying the transport along these ribbons.
Prospects for the provision of genotyped blood for transfusion (2013)

Blood group genotyping is gaining widespread adoption in blood centres and transfusion services. The current interest for a blood centre is its use as a screening tool to accurately predict donor phenotypes. However, not only is blood group genotyping used to screen for uncommon and rare types on a mass-scale, it can be used to optimize the inventory of multiple antigen-negative screened units. In addition, blood group genotyping provides blood types when antisera are not available, it can predict weak and variant antigens, and can aid in the resolution of ABO discrepancies. There are quality improvement benefits in blood group genotyping because it can screen for RHD alleles in Rh-negative blood donors and can be used to confirm that donors are suitable for reagent red cell production. It is possible that blood group genotyping information may be used as a donor recruitment tool. Given that genotyping can convey much more information about the expression of some complex antigens, e.g. hrB, Uvar, and Duffy, clinical trials are probably needed to show that genotyped or 'dry matched' transfusions are superior to phenotyped blood.
Automatic Generation of IC Part Shape Data (2007)

Chip mounters and surface mount device (SMD) inspection systems use image processing techniques for the placement of SMDs onto printed circuit boards (PCB) and the inspection of SMDs. Such techniques require the part shape data which define the shape of SMDs; however, the creation of this data is currently not automated. The goal of this paper is to make a system that generates part shape data automatically by processing images of SMDs. There are several target parts, such as IC, BGA (ball grid array), chips, and connectors, etc., for which data can be generated. In this paper we will focus on generation of data for IC parts.
Design and preliminary evaluation of a flexible exoskeleton to assist with lifting (2020)

We present a passive (unpowered) exoskeleton that assists the back during lifting. Our exoskeleton uses carbon fiber beams as the sole means to store energy and return it to the wearer. To motivate the design, we present general requirements for the design of a lifting exoskeleton, including calculating the required torque to support the torso for people of different weights and heights. We compare a number of methods of energy storage for exoskeletons in terms of mass, volume, hysteresis, and cycle life. We then discuss the design of our exoskeleton, and show how the torso assembly leads to balanced forces. We characterize the energy storage in the exoskeleton and the torque it provides during testing with human subjects. Ten participants performed freestyle, stoop, and squat lifts. Custom image processing software was used to extract the curvature of the carbon fiber beams in the exoskeleton to determine the stored energy. During freestyle lifting, it stores an average of 59.3 J and provides a peak torque of 71.7 Nm.
Clinical cardioprotection and the value of conditioning responses (2009)

Adjunctive cardioprotective strategies for ameliorating the reversible and irreversible injuries with ischemia-reperfusion (I/R) are highly desirable. However, after decades of research, the promise of clinical cardioprotection from I/R injury remains poorly realized. This may arise from the challenges of trialing and effectively translating experimental findings from laboratory models to patients. One can additionally consider whether features of the more heavily focused upon candidates could limit or preclude therapeutic utility and thus whether we might shift attention to alternate strategies. The phenomena of preconditioning and postconditioning have proven fertile in identification of experimental means of cardioprotection and are the most intensely interrogated responses in the field. However, there is evidence these processes, which share common molecular signaling elements and end effectors, may be poor choices for clinical exploitation. This includes evidence of age dependence, limiting efficacy in target aged or senescent hearts; refractoriness to conditioning stimuli in diseased myocardium; interference from a variety of relevant pharmaceuticals; inadvertent induction of these responses by prior ischemia or commonly used drugs, precluding further benefit; and sex dependence of protective signaling. This review focuses on these features, raising questions about current research strategies, and the suitability of these widely studied phenomena as rational candidates for clinical translation.
Highly pipelined asynchronous FPGAs (2004)

We present the design of a high-performance, highly pipelined asynchronous FPGA. We describe a very fine-grain pipelined logic block and routing interconnect architecture, and show how asynchronous logic can efficiently take advantage of this large amount of pipelining. Our FPGA, which does not use a clock to sequence computations, automatically self-pipelines" its logic without the designer needing to be explicitly aware of all pipelining details. This property makes our FPGA ideal for throughput-intensive applications and we require minimal place and route support to achieve good performance. Benchmark circuits taken from both the asynchronous and clocked design communities yield throughputs in the neighborhood of 300--400 MHz in a TSMC 0.25m process and 500--700 MHz in a TSMC 0.18m process.
Classification of audio signals using statistical features on time and wavelet transform domains (2002)

This paper presents a study on musical signal classification, using wavelet transform analysis in conjunction with statistical pattern recognition techniques. A comparative evaluation between different wavelet analysis architectures in terms of their classification ability, as well as between different classifiers is carried out. We seek to establish which statistical measures clearly distinguish between the three different musical styles of rock, piano, and jazz. Our preliminary results suggest that the features collected by the adaptive splitting wavelet transform technique performed better compared to the other wavelet based techniques, achieving an overall classification accuracy of 91.67%, using either the minimum distance classifier or the least squares minimum distance classifier. Such a system can play a useful part in multimedia applications which require content based search, classification, and retrieval of audio signals, as defined in MPEG-7.
Differentially Private Generalized Linear Models Revisited (2022)

We study the problem of $(ε,δ)$-differentially private learning of linear predictors with convex losses. We provide results for two subclasses of loss functions. The first case is when the loss is smooth and non-negative but not necessarily Lipschitz (such as the squared loss). For this case, we establish an upper bound on the excess population risk of $\tilde{O}\left(\frac{\Vert w^*\Vert}{\sqrt{n}} + \min\left\{\frac{\Vert w^* \Vert^2}{(nε)^{2/3}},\frac{\sqrt{d}\Vert w^*\Vert^2}{nε}\right\}\right)$, where $n$ is the number of samples, $d$ is the dimension of the problem, and $w^*$ is the minimizer of the population risk. Apart from the dependence on $\Vert w^\ast\Vert$, our bound is essentially tight in all parameters. In particular, we show a lower bound of $\tildeΩ\left(\frac{1}{\sqrt{n}} + {\min\left\{\frac{\Vert w^*\Vert^{4/3}}{(nε)^{2/3}}, \frac{\sqrt{d}\Vert w^*\Vert}{nε}\right\}}\right)$. We also revisit the previously studied case of Lipschitz losses [SSTT20]. For this case, we close the gap in the existing work and show that the optimal rate is (up to log factors) $Θ\left(\frac{\Vert w^*\Vert}{\sqrt{n}} + \min\left\{\frac{\Vert w^*\Vert}{\sqrt{nε}},\frac{\sqrt{\text{rank}}\Vert w^*\Vert}{nε}\right\}\right)$, where $\text{rank}$ is the rank of the design matrix. This improves over existing work in the high privacy regime. Finally, our algorithms involve a private model selection approach that we develop to enable attaining the stated rates without a-priori knowledge of $\Vert w^*\Vert$.
Small acidic peptides are bound to lambda phage DNA. (1991)

We have reported the isolation of low molecular weight peptides from the genomic DNA of eukaryotic and prokaryotic cells. The peptides dissociated from DNA by alkali treatment show high specific activity in the control of DNA transcription in vitro and RNA synthesis in several tumor cell lines (Friend leukemia cells, L1210).
Sequential tripping of steam turbine generators (2002)

The practice of tripping the generator breakers immediately following a boiler/turbine trip exposes a steam turbine generator to a potentially damaging overspeed operating condition. This paper describes the use of the sequential trip mode as a means of minimizing the exposure to possible unit damage following a boiler/turbine trip. Included is a comparison of the application of devices used by several major steam turbine generator manufacturers in accomplishing sequential tripping of the unit. This paper also discusses the differences in the devices used in implementing the tripping scheme and those applied as backup motoring protection. Additionally, the paper provides guidance in the selection of which functions should and should not be used to initiate sequential tripping.
SC-FDMA Waveform Design, Performance, Power Dynamics and Evolution to MIMO (2007)

We study waveform design, performance and power dynamics of the localized form of the single-carrier frequency-division multiple access (SC-FDMA) considered for uplink in the 3GPP long-term evolution (LTE). A classical single-carrier scheme with root-raised-cosine filtering and two DFT-based schemes are considered, one with and another without a novel spectral expansion. It is shown how to design waveforms similar to the classical scheme by using this spectral expansion. The advantages are that now the transmitter and receiver can be fully specified in frequency domain and that any fraction of the total bandwidth can be assigned to a user. For constant-amplitude modulation (e.g. BPSK, QPSK), the power dynamics is reduced by 3 dB with spectral expansion. Of course, this is bought for 25% more bandwidth. The inherent power dynamics of complex QAM constellations covers part of this gain. Spectral expansion may sometimes be dispensable, e.g. for 16-QAM in the 3GPP LTE uplink. The evolution to MIMO follows directly from the receiver concept based on virtual antennas.
Case 14-1964 (1964)

Presentation of Case*A seventy-two-year-old automobile mechanic entered the hospital because of abdominal swelling.Fourteen years previously he had pneumonia and thereafter had a chronic cough that was productive of small amounts of clear sputum. Five years before admission exertional dyspnea appeared, and he was told that he was hypertensive. During the year before entry he lost 35 pounds in weight and was intermittently constipated. Three months before admission he experienced steady, aching pain in the anterior portion of the chest for a week; an electrocardiogram was interpreted as normal. During the two months before entry he became increasingly fatigued, . . .
Black-start strategy for power grids including fast cut thermal power units (2013)

The restoration of a power system after a black-out mainly includes following stages of black-start, network reconfiguration, and load restoration. The fast cut back (FCB) function of thermal power units assures the operation of auxiliary equipments after a power network black-out, which is helpful in black-start. This paper establishes a steady-state model of FCB units at the stage of black-start. Based on the established FCB unit model, an optimization mathematical model to maximize the total power generator output is constructed to get the optimal start-up sequence of units. A simplified algorithm is presented to solve this model. Considering the charging-time constraints of line branches, the obtained start-up sequence of units is corrected using the shortest path algorithm to get the start-up path of units. Case studies on the New England 10-unit 39-bus power system are given. The results indicate that FCB units make for power system restoration.
Magneto-electric/dielectric and fluorescence effects in multiferroic xBaTiO3–(1 − x)ZnFe2O4 nanostructures (2014)

Magneto-electric/dielectric and photoemission of BTZF composites depends upon shape, size, surface spin, distortion, epitaxial strain <italic>etc.</italic> of nanostructure
Phase-based alignment of two signals having partially overlapped spectra (2009)

This paper proposes a novel method for aligning two signals using the information contained in the overlapped band. In particular the proposed method aligns two signals by compensating both time-delay and phase-offset in the second signal using the estimated gradient of phase difference in the overlapped band. Compared with other conventional methods, this method can align two signals without requiring a pilot tone or additional hardware. The proposed method was experimentally validated using RF pulses.
Marked increase in the power margin through the use of a dispersion-allocated soliton (1996)

It is shown for the first time that a dispersion-allocated soliton has a much larger power margin than an ordinary soliton with a uniform dispersion. When a soliton transmission line is dispersion-allocated, it is difficult for a high intensity pulse to evolve into a high-order soliton because of the phase mismatching. Thus, the high intensity soliton retains its waveform with its rather simple profile, and it is confirmed that even N=2-3 soliton power is applicable for communication use which means a power margin increase of 6-9.5 dB from the N=1 average soliton.
Cloransulam absorption, translocation, and efficacy on common broadleaf weed species (2004)

Field and laboratory studies were conducted to evaluate herbicide efficacy, absorption, and translocation of cloransulam within broadleaf weeds. Control of morningglory species and velvetleaf with cloransulam was dependent upon application rate and timing. A reduced rate of cloransulam (9 g ai ha −1 ) was as effective as the labeled rate (18 g ha −1 ), when applications were targeted to small to midsize morningglory and velvetleaf. Prickly sida, hemp sesbania, and sicklepod were suppressed by cloransulam. Contour maps predicted accurately weed control for all species except tall morningglory. Cloransulam absorption and translocation provided some information about tolerance mechanisms. Susceptible species, entireleaf morningglory and velvetleaf, both rapidly absorbed 14 C-cloransulam. Absorption in the more tolerant velvetleaf was 20% lower than entireleaf morningglory at all harvest times. Absorption of 14 C-cloransulam in prickly sida was only 26% 6 h after treatment, and absorption did not increase with time. Differences in cloransulam absorption and translocation partially explained differences in susceptibility among some weed species but not others.