gebhart/patrepeval huggingface dataset:
Adaptive beamforming algorithms with robustness against steering vector mismatch of signals (2017)

Three novel adaptive beamforming algorithms are developed to mitigate the steering vector (SV) random errors of both the desired signal and interferences. With the use of iterative robust Capon beamforming technique, each interference's SV is estimated first, and then the interference‐plus‐noise covariance matrix is reconstructed according to its definition. To accurately estimate the signal of interest's (SOI's) SV, the authors introduce three new methods, which are based on the techniques of the second‐order cone programming, the eigendecomposition and the oracle approximating shrinkage. For the proposed beamformers, only the prior information about the array geometry and the SOI's angular sector are needed. The main advantage is that the proposed methods are robust against a variety of SV mismatches. Simulation results are presented to demonstrate the robustness and effectiveness of the proposed adaptive beamformers.
Left Ventricular Pressure-Volume Relationships During Myocardial Ischemia in Man (1973)

It has been shown in man that myocardial ischemia, whether precipitated by exercise or pacing-induced tachycardia, is associated with abnormalities of left ventricular end-diastolic pressure. There has been controversy as to whether this relationship is due to decreased myocardial compliance or to an increase in left ventricular volume as a manifestation of left ventricular failure. Simultaneous measurements of left ventricular pressure and left ventricular volume using ultrasonic techniques were carried out in five normal subjects and 21 patients with coronary artery disease. In the normal subjects a decrease in left ventricular end-diastolic pressure during pacing was associated with a decrease in left ventricular end-diastolic volume, and during interruption of pacing, pressures and volumes returned to normal. In nine patients with coronary artery disease who did not develop angina, a similar response was seen. In 12 patients with coronary artery disease who developed angina during pacing, the reduction in left ventricular end-diastolic volume during pacing was less marked than the other groups and during periods of interruption the increase in diastolic pressure to 26 mm Hg was accompanied by an increase in left ventricular end-diastolic volume to 24% above control values. The end-systolic volume showed a similar increase during myocardial ischemia. These data suggest that the changes in left ventricular filling pressure seen during myocardial ischemia are related to increase in left ventricular volume but do not exclude the possibility that there may be accompanying changes in left ventricular diastolic compliance.
Tilt Tunable Ultra Narrow-Band Filters for High Resolution Infrared Photometry (1975)

The design and operating characteristics of several recently fabricated solid-spaced Fabry-Perot interference filters having bandwidths from 0.3 A to 8 A in the 1-5-microm ir wavelength range are discussed. The 10(4) achievable resolving power of these devices, particularly at the higher wavelengths, represents several orders of magnitude improvement over conventional ir filters, and the implications of this very high resolution along with the tilt-tuning properties of narrow-band filters are discussed in relation to atmospheric remote sensing.
Polymerization of Olefins by a Ziegler Catalyst Supported on Poly(ethylene-co-Vinyl Alcohol) (1977)

Abstract The polymerization and catalytic behavior of a Ziegler type catalyst supported on poly(ethylene-co-vinyl alcohol) (EVA) were investigated. The rate of ethylene polymerization by a catalyst prepared from titanium tetrachloride supported on EVA (vinyl alcohol 18 mole %) and triethylaluminum (AlEt3) is much higher than that of an n-butoxytitanium trichloride (BTT)-AlEt3 catalyst. The polymer-supported catalyst has prolonged high activity during polymerization compared with the BTT-AlEt3 catalyst. The stabilization of the catalyst seems to depend on its slower reduction by alkylaluminum compounds, due to steric hindrance by bulky polymer ligands. Polypropylene prepared by the polymer supported Ziegler catalyst is essentially atactic, and it differs little from that prepared with a BTT-AlEt3 catalyst. Vinyl chloride was also polymerized by this catalyst. The catalytic activity was, however, very small.
Reducing stillbirths: screening and monitoring during pregnancy and labour (2009)

There are numerous research gaps and large, adequately controlled trials are still needed for most of the interventions we considered. The impact of monitoring interventions on stillbirth relies on use of effective and timely intervention should problems be detected. Numerous studies indicated that positive tests were associated with increased perinatal mortality, but while some tests had good sensitivity in detecting distress, false-positive rates were high for most tests, and questions remain about optimal timing, frequency, and implications of testing. Few studies included assessments of impact of subsequent intervention needed before recommending particular monitoring strategies as a means to decrease stillbirth incidence. In high-income countries such as the US, observational evidence suggests that widespread use of cardiotocography with Caesarean section for fetal distress has led to significant declines in stillbirth rates. Efforts to increase availability of Caesarean section in low-/middle-income countries should be coupled with intrapartum monitoring technologies where resources and provider skills permit.
Diameter Increase in Millimeter-Tall Vertically Aligned Single-Walled Carbon Nanotubes during Growth (2010)

Diameter increase was found during the rapid, vertically aligned growth of millimeter-long single-walled carbon nanotubes (SWCNTs). The diameters continuously increased on average from 1.7 nm at the top to 3.7 nm at the bottom of vertically aligned SWCNTs. The SWCNT structures ranged from straight and bundled at the top to bent and isolated and even collapsed at the bottom. Our findings show the importance of suppressing catalyst coarsening to obtain thin SWCNTs, as well as a potential production route of thick SWCNTs and edgeless bilayer graphene ribbons.
Report on the larva, eggs, and egg mass of <i>Rossia</i> sp. (Decapoda, Cephalopoda) from Bonavista Bay, Newfoundland (1968)

For the first time, larvae and egg masses of decapod cephalopods are here reported from the waters of Newfoundland and Labrador. The specimens in question are from a depth of 180 fathoms in Bonavista Bay in the north of insular Newfoundland. One larva and eight eggs of extremely large size were found in a mass composed of fibrous and spongy components. The decapod is assigned to the genus Rossia. The egg mass was found to incorporate living tissue of the demospongid Isodictya palmata (Lamarck).
<i>Trans</i>acting regulation of<i>β</i>globin gene expression in erythroleukemia (K562) cells (1985)

K562 cells are induced by hemin to produce gamma and epsilon globin but not beta globin, although the beta globin gene is intact, and when isolated is expressed in a transient expression assay (1, 2). We have previously shown that an epsilon globin gene transferred into K562 cells is expressed and inducible (3). In this paper, we report the stable transfer of a sickle or betaS globin gene into K562 cells. Thirty-six different transformed lines were tested; 24 of 36 lines contained an intact betaS globin gene. However, using S1 nuclease, Dot blot, and Northern blotting analyses, none of these lines showed beta globin mRNA expression. These results indicate that trans acting factors are responsible for the lack of expression of the beta globin gene in K562 cells.
A field study of PEM (Personal Environmental Module) performance in Bank of America's San Francisco office buildings (1997)

This report describes the results of a field study performed by UC Berkeley in collaboration with Bank of America Corporate Real Estate and Johnson Controls World Services. The purpose of the study was to assess the impact of installing Personal Environmental Modules (PEMs) at 42 selected workstations within three Bank of America office buildings in San Francisco. The PEM is an example of a relatively new approach to space conditioning and control in which individuals are given the ability to control critical environmental conditions within their local work area (e.g., workstation). Each office worker can adjust air flow, temperature, lighting, and acoustic characteristics to maintain their own personal comfort levels. By improving employee satisfaction and well-being, it is anticipated that the installation of a PEM system could lead to increased worker productivity and effectiveness.In this study, field measurements were performed both before and after the PEM installation to evaluate the impact of the PEM system on occupant satisfaction and thermal comfort, as well as the thermal environments within the office buildings. Within each building two distinct groups, each having approximately the same number of subjects, were selected to participate in the study: (1) PEM group, consisting of workers who occupied workstations in which PEM units were to be installed; and (2) control group, defined to be a group of workers in the same building having similar work conditions to the PEM group, but who would not be receiving PEMs in their workstations. By collecting and comparing measurement data from these two groups, it was anticipated that the impact of installing the PEMs could be most meaningfully evaluated.The measurement methods used in this field study included (1) occupant surveys, (2) short-term physical measurements of environmental conditions at individual workstations, (3) long-term trend measurements of temperature, humidity, and air quality conditions, and (4) network-based monitoring of occupant use patterns of the PEM desktop controls. The first baseline field measurements were made in March 1996. The 42 PEM units were installed in the three buildings during the first two weeks of April. The follow-up field measurements were completed in July, three months after the PEM installation. During the follow-up field tests, measurements were repeated under three different room temperature setpoint conditions to investigate the occupants’ ability to use the PEMs to control their local environment to satisfy their personal preferences above and below the typical ambient setpoint temperatures.
Auxiliary Power at Richmond Station Auxiliary Power System and Tests on House Turbine Generator (1927)

This paper describes the auxiliary power system of the Richmond Generating Station of the Philadelphia Electric Company, mentioning briefly some of the factors which influenced the design of the system and discusses the starting of large motors at full voltage from, an auxiliary turbine generator.
Membrane‐Incorporated Immunoglobulin Receptors Increase the Antigen‐Presenting Ability of B Cells (1991)

Monoclonal antibodies specific for ovalbumin were conjugated to palmitate and inserted into the membrane of normal spleen B cells. Their presence in the membrane, as well as their ability to bind ovalbumin, was established by immunofluorescence. The so called anti-ovalbumin-'decorated' B cells were tested for their ability to act as antigen-presenting cells for ovalbumin-specific I-Ad-restricted T-cell hybridomas. It was found that the antibody-decorated B cells presented antigen more efficiently than non-decorated B cells.
Power Loss and Axial Load Carrying Capacity of Radial Cylindrical Roller Bearings (2013)

there to the lip of the outer ring. Alternating axial loads can be supported by a bearing of the NJ (cylindrical roller bearing)-type—in combination with an angle ring HJ (see previous)—or by a bearing of the NUP (see previous)-type with loose lip (Ref. 2). Despite the fact that combined-loaded CRBs have been in use for more than a century, there had existed no standard for the calculation of the axial load-dependent friction torque and the axial load capacity until now (Ref. 3). While there are indeed equations presented in the relevant literature and bearing catalogues that enable the calculation of the axial load-dependent friction torque, these equations are mostly based on empiric approaches and the
Reconstruction of the spatial distributionof radar reflectivity ofprecipitation through linear-inversion techniques (1996)

The authors present a method aiming to remove the smoothing effect due to the antenna beamwidth in the reconstruction of the rain reflectivity based on radar measurements. The function to be reconstructed is the spatial distribution Z(x, y, h) of the radar reflectivity Z of the precipitation, which is shown to be related by a Fredholm integral equation to the power received by the radar. This integral equation is transformed into a set of linear equations and subsequently solved through a constrained-linear-inversion technique. The method is then applied to the cases of both stratiform and convective rain, leading to an improved estimation of the reflectivity-peak location and intensity, and of the overall reflectivity profile.
The Influences of Strain Rate on the Mechanical Behavior of Paper Honeycomb (2012)

The paper honeycomb is a strain-rate-sensitive material. It is significant to predict the mechanical properties of paper hoenycomb at different strain rate for optimizing packaging design. According to the Cowper-Symonds equation, the influence of the strain rate on the paper honeycomb was studied, and the characterization parameters were found by parameter fitting. It provides a reference for optimizing design of paper honeycomb.
Recoverry of Sulfur Dioxide from Waste Gases Equilibrium Partial Vapor Pressures over Solutions of the Ammonia- Sulfur Dioxide-Water System (1935)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRecoverry of Sulfur Dioxide from Waste Gases Equilibrium Partial Vapor Pressures over Solutions of the Ammonia- Sulfur Dioxide-Water SystemH. F. JohnstoneCite this: Ind. Eng. Chem. 1935, 27, 5, 587–593Publication Date (Print):May 1, 1935Publication History Published online1 May 2002Published inissue 1 May 1935https://doi.org/10.1021/ie50305a020RIGHTS & PERMISSIONSArticle Views184Altmetric-Citations28LEARN 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 InReddit PDF (858 KB) Get e-Alerts
Evidence that immunoglobulin-positive neurons in Alzheimer's disease are dying via the classical antibody-dependent complement pathway (2005)

A recent study provided evidence that immunoglobulins (Igs) are not only present in Alzheimer's disease (AD) brains, but are also immunohistochemically detected in and/or on a particular population of pyramidal neurons that appeared morphologically degenerative in contrast to neighboring normal-appearing Ig-negative neurons. Because little has been reported about these Ig-positive neurons, the objectives of this study were to characterize the inflammatory profile of these neurons in the AD brain by determining if they possess complement components and are associated with reactive microglia. The data showed that the Ig-positive neurons had complement C1q and C5b-9 proteins and appeared degenerative. Furthermore, D-related human leukocyte antigen (HLA-DR)-positive fibers of reactive microglia were spatially closer (p < 0.001) and often in contact with the Ig-positive neurons than the Ig-negative neurons. Collectively, these data suggest that the Ig-positive neurons detected in AD brains are dying from the processes of the antibody-induced classical complement pathway.
Tailoring of the Nanotexture of Mesoporous Silica Films and Their Functionalized Derivatives for Selectively Harvesting Low Molecular Weight Protein (2009)

We present a fast, efficient, and reliable system based on mesoporous silica chips to specifically fractionate and enrich the low molecular weight proteome. Mesoporous silica thin films with tunable features at the nanoscale were fabricated using the triblock copolymer template pathway. Using different templates and concentrations in the precursor solution, various pore size distributions, pore structures, and connectivity were obtained and applied for selective recovery of low mass proteins. In combination with mass spectrometry and statistic analysis, we demonstrated the correlation between the nanophase characteristics of the mesoporous silica thin films and the specificity and efficacy of low mass proteome harvesting. In addition, to overcome the limitations of the prefunctionalization method in polymer selection, plasma ashing was used for the first time for the treatment of the mesoporous silica surface prior to chemical modification. Surface charge modifications by different functional groups resulted in a selective capture of the low molecular weight proteins from serum sample. In conclusion, our study demonstrates that the ability to tune the physicochemical properties of mesoporous silica surfaces, for a selective enrichment of the low molecular weight proteome from complex biological fluids, has the potential to promote proteomic biomarker discovery.
Die Kristallstruktur des η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>Ru(CO)<sub>2</sub>(CONH<sub>2</sub>) [1] / The Crystal Structure of η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>Ru(CO)<sub>2</sub>(CONH<sub>2</sub>) [1] (1979)

The crystal structure of the monoclinic η5-C 5 H 5 RU(CO) 2 (CONH 2 ) has been determined by X-ray diffraction (space group P1̄ with Z - 4 and a = 1248,3 pm, b = 963,3 pm, c = 845,2 pm, α= 97,35°, β= 106,11°, and γ= 99,32°). The Ru is pseudo-octahedrally coordinated to the η 5 -C 5 H 5 ring, the two CO groups and the CONH 2 ligand with a planar RuC(O)N-moiety. Dimers are formed by N-H···O hydrogen bonds connecting the carbamoyl ligands of two molecules. Further hydrogen bonds link these dimers to form a helical chain.
Functional Assessment Staging (FAST) in Alzheimer’s Disease: Reliability, Validity, and Ordinality (1992)

Evaluation of changes in functional performance and activities of daily living skills is an essential aspect of the assessment of elderly individuals with chronic illness. Although functional decrement is a central aspect of Alzheimer's disease (AD), many measures currently utilized to assess these changes have limitations. Empirical and systematic examination of the functional changes occurring in patients with AD has resulted in the development of an assessment measure termed Functional Assessment Staging (FAST) that allows for the specific evaluation of these changes throughout the entire course of AD. In this paper the results of three separate investigations regarding the reliability, validity, and progressive ordinality of FAST are described. The results indicate that FAST is a reliable and valid assessment technique for evaluating functional deterioration in AD patients throughout the entire course of the illness. Moreover, the results suggest that the FAST elucidates a characteristic pattern of progressive, ordinal, and functional decline in AD. Because the elements of functional capacity incorporated in FAST are relatively universal and readily ascertainable, as well as characteristic of the course of AD, FAST can serve as a strong diagnostic and differential diagnostic aid for clinicians. The sensitivity of FAST to the entire course of AD, even in its most severe stages, may be indicative of the potential value of this instrument for further investigation of the temporal longitudinal course of AD, and of the relationships between clinical pathology and neuropathology throughout the entire longitudinal course of AD.
Algae removal using dissolved air flotation. (1975)

1. The small size of the individual cells, which vary from 3 to 15 ?i; 2. The low specific gravity of the in dividual cell, which is further reduced by the attachment of minute bubbles of in ternally produced oxygen; and 3. The relatively dilute suspensions in which algae occur. Research into the separation of algae has been surprisingly limited, with only a few individuals being involved. However, they have investigated a large variety of methods with varying degrees of success.
Hsf-1 and POB1 Induce Drug Sensitivity and Apoptosis by Inhibiting Ralbp1 (2008)

Hsf-1 (heat shock factor-1) is a transcription factor that is known to regulate cellular heat shock response through its binding with the multispecific transporter protein, Ralbp1. Results of present studies demonstrate that Hsf-1 causes specific and saturable inhibition of the transport activity of Ralbp1 and that the combination of Hsf-1 and POB1 causes nearly complete inhibition through specific bindings with Ralbp1. Augmentation of cellular levels of Hsf-1 and POB1 caused dramatic apoptosis in non-small cell lung cancer cell line H358 through Ralbp1 inhibition. These findings indicate a novel model for mutual regulation of Hsf-1 and Ralbp1 through Ralbp1-mediated sequestration of Hsf-1 in the cellular cytoskeleton and Hsf-1-mediated inhibition of the transport activity of membrane-bound Ralbp1.
The Characterization of Human Transmyocardial Impedance during Implantation of the Automatic Internal Cardioverter Defibrillator (1986)

We set out to determine in a prospective fashion the characteristics of energy delivery related to defibrillation in a population of patients receiving the AICD. Specifically, we examined the characteristics of the delivered current, transmyocardial voltage, and transmyocardial impedance. Secondly, we determined the relationship between the energy delivered, the impedance encountered and the defibrillation threshold. Since the AICD will deliver a succession of shocks if the initial shock does not cardiovert, the effects of consecutive shocks at different energy levels on the transmyocardial impedance were also assessed.
Metabolic profiling of gestational diabetes in obese women during pregnancy (2017)

Among obese pregnant women, differences in metabolic profile, including exaggerated dyslipidaemia, are evident at least 10 weeks prior to a diagnosis of GDM in the late second trimester.
Enhanced Performance of Photo-EMF Detectors Using Asymmetric Interdigital Contacts (1999)

We show that photo-emf detectors using asymmetric interdigital contacts have a responsivity that increases linearly with the number of electrode pairs relative to a single-pair, conventional device. We demonstrate a 32-fold enhancement using this scheme.
Modeling and mutational analysis of the GAF domain of the cGMP‐binding, cGMP‐specific phosphodiesterase, PDE5 (2003)

The GAFa domain of the cGMP-binding, cGMP-specific phosphodiesterase (PDE5A) was modeled on the crystal structure of PDE2A GAF domain and residues involved in cGMP binding identified. Tandem GAFa and GAFb domains of PDE5A, expressed in Escherichia coli, bound cGMP (K(d) 27 nM). Mutation of aspartate-299 in GAFa, suggested earlier to be critical for cGMP binding, did not abrogate cGMP binding, but mutation of F205, which formed a stacking interaction with the guanine ring of cGMP, led to complete loss of cGMP binding. Therefore, the GAFa domain of PDE5A adopts a structure similar to the GAFb domain of PDE2A, and provides the sole site for cGMP binding in PDE5A.