gebhart/patrepeval huggingface dataset:
Producción de micropellets para procesos de sinterizado (2011)

Una nueva técnica permite la producción de pellets conforma esférica y tamaños en la escala micrométrica,convirtiéndose en una alternativa para la producciónde polvos con propiedades físicas en demanda paraprocesos de prototipado, como el de sinterizado porlaser. Con esta nueva técnica el polímero fundidoes extruido por un capilar donde una hebra escontinuamente deformada por una corriente de airecaliente que, gracias a la formación de perturbacionesde Rayleigh, se rompe en pellets esféricos con tamañosen la escala micrométrica. Este documento presenta ladescripción del diseño de dicho sistema, una discusiónde los fenómenos involucrados en la formación depellets esféricos, así como los primeros resultados quevalidan cada uno de los fenómenos descritos.
The Effect of Particle Diameter Ratio on the Friction and Cohesion of Powder Mixture (1969)

The parameter c, reflecting the frictional and cohesive properties of binary powder mixture was obtained from the bottom pressure measurements. The effects of the particle diameter. ratio and the way of external pressure application upon c were studied.In. all cases, c of the mixture deviates from the linear. line connecting the value of each component, although the parameter c approached to the linear line for the small diameter ratios. At low external pressure experiments, the deviation was positive. This deviation was, however, reversed when relatively high pressure was applied with preconsolidation.These findings indicate that the interaction between fine and coarse particles, accordingly the state of aggregates is quite different depending on the applied external pressure. A part of these interactions was considered as due to the coarse-fine aggregates, which was confirmed by the relation of c to the loosely packed density.Therefore, a care must be always taken in evaluating the flow or compressional properties, i.e., in measuring the frictional or cohesive properties of mixed powders and its effects on the state of aggregates, particularly in regard to the range of applied force.
59.1: Display Grid: Ad‐hoc Clusters of Autonomous Projectors (2004)

Abstract Inspired by emerging trends in grid computing, we present techniques for creating multi‐projector displays via self‐configuring clusters of autonomous projectors. The ad‐hoc clustering approach avoids large monolithic installations. We show a low‐cost system that supports dynamic inclusion of new projectors, automatic geometric configuration and seamless blending of overlapping projectors.
Articles highlighted (2016)

Altered physiology of olfactory sensory neurons and perceptual learning after
Sustainable Development of Hot-Pressed All-Lignocellulose Composites—Comparing Wood Fibers and Nanofibers (2021)

Low-porosity materials based on hot-pressed wood fibers or nanocellulose fibrils (no polymer matrix) represent a new concept for eco-friendly materials with interesting mechanical properties. For the replacement of fossil-based materials, physical properties of wood fiber materials need to be improved. In addition, the carbon footprint and cumulative energy required to produce the material also needs to be reduced compared with fossil-based composites, e.g., glass fiber composites. Lignin-containing fibers and nanofibers are of high yield and special interest for development of more sustainable materials technologies. The present mini-review provides a short analysis of the potential. Different extraction routes of lignin-containing wood fibers are discussed, different processing methods, and the properties of resulting fiber materials. Comparisons are made with analogous lignin-containing nanofiber materials, where mechanical properties and eco-indicators are emphasized. Higher lignin content may promote eco-friendly attributes and improve interfiber or interfibril bonding in fiber materials, for improved mechanical performance.
Increased apelin receptor gene expression in the subfornical organ of spontaneously hypertensive rats (2020)

The vascular organ of the lamina terminalis, subfornical organ (SFO), and area postrema comprise the sensory circumventricular organs (CVO) which are central structures that lie outside the blood brain barrier and are thought to provide an interface between peripherally circulating signals and the brain through their projections to central autonomic structures. The SFO expresses mRNA for the G protein-coupled apelin receptor (APJ, gene name aplnr) and exogenous microinjection of the neuropeptide apelin (apln) to the SFO elicits a depressor effect. Here we investigated the expression and cellular distribution of aplnr, apln and the recently described ligand apela (apela) in the CVOs and investigated whether differences in the levels of expression of apelinergic gene transcripts in these regions might underlie the chronic elevated blood pressure seen in hypertension. We carried out multiplex in situ hybridization histochemistry on CVO tissue sections from spontaneously hypertensive rats (SHR) and normotensive Wistar Kyoto (WKY) controls. Confocal immunofluorescent images indicated strong aplnr expression, with lower levels of apln and modest apela expression, in the CVOs of both WKY rats and SHRs, in both neurons and glia. The expression level of aplnr transcripts was increased in the SFO of SHRs compared to WKY rats. Our data may highlight a potential dysfunction in the communication between CVOs and downstream signalling pathways in SHRs, which may contribute to its different phenotype/s.
Effect of curcumin on apoptosis in hippocampal neurons and expression of c-jun N-terminal kinase-3 and postsynaptic density protein 95 in hippocampus during cerebral ischemia- reperfusion in spontaneously hypertensive rats (2011)

Objective To investigate the effect of curcumin on apoptosis in hippocampal neurons and the expression of c-Jun N-terminal kinase 3 (JNK3) and postsynaptic density protein 95 (PSD95) in hippocampus during cerebral ischemia-reperfusion (I/R) in rats with spontaneous hypertension (SH) .Methods One hundred and thirty-five male rats (homologous with WKY) with SH and 90 male normotensive WKY rats, weighing 275-325 g,were used in this study. The WKY rats were randomized into 2 groups ( n = 45 each) : sham operation group (WS group) and cerebral I/R group (W-I/R group) . The rats with SH were randomly divided into 3 groups ( n = 45each) : sham operation group (S-S group), cerebral I/R group (S-I/R group) and curcumin group (S-C group) .Global cerebral ischemia was produced by 4 vessel-occlusion method. The bilateral common carotid arteries were only exposed but not ligated in W-S and S-S groups. Intraperitoneal corn oil 10 ml/kg was injected at 30 min of reperfusion in W-I/R and S-I/R groups. Intraperitoneal curcumin 100 mg/kg was injected at 30 min of reperfusion in S-C group. Three animals in each group were sacrificed at 2 h, 6 h, 1 d, 3 d and 7 d of reperfusion and their brains were harvested for determination of apoptosis in hippocampal neurons and the expression of JNK3 and PSD95in hippocampus. Results The number of apoptotic neurons was significantly increased in S-S group compared with W-S group ( P 0.05) . Conclusion Curcumin can inhibit apoptosis in hippocampal neurons and the mechanism is related to down-regulation of the expression of JNK3 in hippocampus. The mechanism by which curcumin down-regulates the expression of JNK3in hippocampus may not be related to PSD95 pathway. 

Key words: 
Curcumin;  Hypertension;  Reperfusion injury;  Brain;  Apoptosis;  JNK mitogen-activated protein kinases;  Membrane proteins
Gait recognition from time-normalized joint-angle trajectories in the walking plane (2005)

This paper demonstrates gait recognition using only the trajectories of lower body joint angles projected into the walking plane. For this work, we begin with the position of 3D markers as projected into the sagittal or walking plane. We show a simple method for estimating the planar offsets between the markers and the underlying skeleton and joints; given these offsets we compute the joint angle trajectories. To compensate for systematic temporal variations from one instance to the next-predominantly distance and speed of walk-we fix the number of footsteps and time-normalize the trajectories by a variance compensated time warping. We perform recognition on two walking databases of 18 people (over 150 walk instances) using simple nearest neighbor algorithm with Euclidean distance as a measurement criteria. We also use the expected confusion metric as a means to estimate how well joint-angle signals will perform in a larger population.
Ultra High Density Scanning Electrical Probe Phase-Change Memory for Archival Storage (2011)

The potential for using probe-based phase-change memories for the future archival storage at densities of around 1 Tbit/in.2 is investigated using a recording medium comprising a Si/TiN/DLC/GeSbTe/diamond-like carbon (DLC) stack together with a conductive PtSi tip for writing and reading. Both experimental and computational simulation results are presented. The simulations include a physically-realistic threshold switching model, as well as the effects of thermal boundary resistance and electrical contact resistance. The simulated bit size and shape correspond closely to that written experimentally.
Origin of negative and dispersive features in anti-Stokes and resonance femtosecond stimulated Raman spectroscopy (2008)

Femtosecond stimulated Raman spectroscopy is extended to probe ground state anti-Stokes vibrational features. Off resonance, negative anti-Stokes features are seen that are the mirror image of the positive Stokes side spectra. On resonance, the observed dispersive lineshapes are dramatically dependent on the frequencies of the picosecond pump and femtosecond probe pulses used to generate the stimulated Raman spectra. These observations are explained by the contributions of the inverse Raman and hot luminescence four-wave mixing processes discussed by Sun et al. [J. Chem. Phys. 128, 144114 (2008)], which contribute to the overall femtosecond stimulated Raman signal.
An intelligent power amplifier MMIC using a new adaptive bias control circuit for W-CDMA applications (2004)

A high-linearity and high-efficiency MMIC power amplifier is proposed that adopts a new on-chip adaptive bias control circuit, which simultaneously improves efficiency at the low output power level and linearity at the high output power level. The adaptive bias control circuit detects the input power level and supplies a low quiescent current of 16 mA at the low output power level and an increased current up to 90 mA according to the increased power level adaptively. The intelligent W-CDMA power amplifier using the adaptive bias circuit exhibits an improvement of average power usage efficiency of more than 1.93 times, and an adjacent channel leakage ratio by 4 dB at the output power of 28.3 dBm.
U.S. Legislators and Statesmen (2020)

The implementation of policy, even if it is initiated by the President and carried out by his diplomats and generals, can only be put into effect with the co-operation of Congress, if for no other reason than its cost in dollars which only the legislators are in a position to provide. Members lose elections and are replaced by new legislators who must learn it all for themselves. Members die. Their parties decline. They are &quot;gerrymandered&quot; out of their districts. With the Versailles Treaty failing to muster a two-thirds' majority of the Senate, the United States declined to become one of the founding members of the new League of Nations. Many Members of Congress harboured doubts about the validity of the 1975 Helsinki Declaration which, as it did not constitute a treaty, was not submitted to the Senate for ratification.
Differential Beamforming From a Geometric Perspective (2023)

Differential microphone arrays (DMAs) have demonstrated a great potential for solving the high-fidelity sound acquisition problem in a wide range of applications as they possess many good properties such as frequency-independent beampatterns with high directivity. A significant number of efforts have been devoted to the design of DMAs and the associated beamformers. As a result, many different types of DMAs and differential beamforming methods have been developed over the last few decades, some of which have been successfully deployed in real systems and commercial products. However, given an application, how to design a DMA to achieve optimal performances is still an open issue. This work studies the problem of designing linear DMAs (LDMAs) from a geometric perspective. Based on the fundamental observation that most practical and interesting DMA beampatterns have nulls in some directions, we define a criterion based on the orthogonality between the beamforming filter and the steering vector in the nulls' directions. We then derive a family of differential beamformers by optimizing the defined criterion, some of which are well known but derived from a different perspective, while others are new. Simulations and experiments are carried out, and the results validate the proposed method and developed differential beamformers.
Distribution of the Protease Inhibitor α1-Antichymotrypsin in Cerebral and Systemic Amyloid (1990)

We performed immunocytochemical staining to study the distribution of serum protease inhibitors in cerebral and systemic amyloid deposits. In beta-protein amyloid deposits in Alzheimer's disease, Down's syndrome, age-related cerebral amyloidosis, sporadic cerebral amyloid angiopathy and hereditary cerebral hemorrhage with amyloidosis of Dutch origin, antibody to alpha 1-antichymotrypsin (ACT) stains senile plaques and vascular deposits. Immature plaques or preamyloid deposits, identified by their positive staining for beta-protein and negative staining for Congo red, which represents the earliest recognizable stages of amyloid deposition, are also labeled. We did not detect ACT in other chemically different forms of cerebral and systemic amyloid. None of the other inhibitors in this study, i.e. antithrombin III and alpha 2-macroglobulin, was detected in the amyloid deposits. Neurons and glial cells throughout the central nervous system in normal and amyloid-containing brains also bind ACT antibody. The results emphasize the close association of ACT with one type of cerebral amyloid (beta-amyloid diseases) as well as the failure to detect such an association in other chemically different forms of cerebral and systemic amyloids.
Association between distress and knowledge among parents of autistic children (2019)

Understanding the overall utility of biological testing for autism spectrum disorder (ASD) is essential for the development and integration of biomarkers into routine care. One measure related to the overall utility of biological testing is the knowledge that a person has about the condition he/she suffers from. However, a major gap towards understanding the role of knowledge in overall utility is the absence of studies that have assessed knowledge of autism along with its predictors within a representative sample of families within the context of routine care. The objective of this study was to measure knowledge of ASD among families within the routine care pathway for biological testing in ASD by examining the association between knowledge with potential correlates of knowledge namely sociodemographic factors, parental stress and distress, and time since diagnosis among parents whose child with ASD is undergoing clinical genetic testing. Parents of a child diagnosed with ASD (n = 85, Mage = 39.0, SD = 7.7) participating in an ongoing prospective genomics study completed the ASD Quiz prior to undergoing genetic testing for clinical and research purposes. Parents also completed self-reported measures of stress and distress. Parent stress and distress was each independently correlated with knowledge of ASD, rs ≥ 0.26, ps < 0.05. Stepwise regression analysis revealed a significant model accounting for 7.8% of the variance in knowledge, F (1, 82) = 8.02, p = 0.006. The only factor significantly associated with knowledge was parental distress, β = 0.30, p = 0.006. Parental stress, time since diagnosis, and sociodemographic factors were not significant predictors in this model. We concluded that families require tailored support prior to undergoing genetic testing to address either knowledge gaps or high distress. Ongoing appraisal of the testing process among families of diverse backgrounds is essential in offering optimal care for families undergoing genetic testing.
Tuning the Performance of Negative Tone Electron Beam Resists for the Next Generation Lithography (2022)

Abstract A new class of electron bean negative tone resist materials has been developed based on heterometallic rings. The initial resist performance demonstrates a resolution of 15 nm half‐pitch but at the expense of a low sensitivity. To improve sensitivity a 3D Monte Carlo simulation is used that utilizes a secondary and Auger electron generation model. The simulation suggests that the sensitivity can be dramatically improved while maintaining high resolution by incorporating appropriate chemical functionality around the metal–organic core. The new resists designs based on the simulation have the increased sensitivity expected and illustrate the value of the simulation approach.
Shubnikov–de Haas oscillations in the three-dimensional Dirac fermion system Ca3PbO (2019)

Cubic antiperovskite ${\mathrm{Ca}}_{3}\mathrm{PbO}$ is a candidate for three-dimensional (3D) Dirac fermion systems that have recently emerged as a class of topological materials exhibiting linear energy dispersion in the bulk. We report magnetotransport and tunnel diode oscillation (TDO) measurements on Bi-doped ${\mathrm{Ca}}_{3}\mathrm{PbO}$ in magnetic fields up to 55 T and temperatures between 2 and 78 K. By observing the Shubnikov--de Haas (SdH) oscillations, we resolve the bulk 3D Fermi surface (FS) with distinctive features of Dirac fermions including linear magnetoresistance, light effective mass, and a nontrivial phase shift. TDO measurements under high fields reveal the existence of two primary SdH frequencies, one being twice the other. Together with the low effective mass, the oscillations of these two frequencies account for the emergence of the Landau level splitting that persists up to 43 K. The field-angular-dependence of the oscillation frequencies with three branches confirms that the FS is composed of three pairs of hole pockets with uniaxial anisotropy on the \ensuremath{\Gamma}-X path, as predicted for bulk ${\mathrm{Ca}}_{3}\mathrm{PbO}$ crystal by density functional theory calculation.
A Biometric for Neurobiology of Influence with Social Informatics Using Game Theory (2013)

This paper is constructed on the premise that human belief dependent emotions can be triggered by story-telling or narratives. With recent technological advancements to measure neurobiological measurements of the brain, such as functional magnetic resonance imaging (fMRI) and non-invasive brain computing interface (BCI) equipment, these technologies can allow for visualization and data collection of brain activation patterns showing unconsciously controlled responses to narratives or stories. Current game theory application to belief networks has been modeled to help explain observed behavior when material payoffs of others matters to the individual. We discuss a method of how game theory, utilizing communication packet theory, can now be modeled to belief dependent emotions and intentions measured through a new biometric tool correlating neurobiological emotional states and responses.
Design and demonstration of phase gratings for 2D single grating interferometer (2015)

In this study, we examined five types of phase gratings in a two-dimensional (2D) single grating interferometer with multidot metal targets embedded in a diamond substrate. For a phase grating consisting of two stacked 1D π/2-phase gratings and a checkerboard π-phase grating the multidot-pattern self-images with high visibility (40%) were obtained as expected from simulations. In addition to an absorption image, differential phase contrast and dark-field images in both x and y directions were derived from a single image. We also examined face-centered-square multidot metal targets, which doubled the x-ray intensity, and obtained differential phase contrast images in both x and y directions.
Tranexamic acid alters the immunophenotype of phagocytes after lower limb surgery (2022)

In this investigation we have extended our examination on the immunomodulatory effects of TXA in surgery by also characterising the end of surgery time point and including B cells and neutrophils in our immune analysis, elucidating new immunophenotypic changes in phagocytes as well as NK cells. This study enhances our understanding of TXA-mediated effects on the haemostatic and immune response in surgery, validating changes in important functional immune cell subsets in orthopaedic patients.
Rosmarinic acid in perilla extract inhibits allergic inflammation induced by mite allergen, in a mouse model (2004)

These results suggest that oral administration of perilla-derived rosmarinic acid is an effective intervention for allergic asthma, possibly through the amelioration of increases in cytokines, chemokines, and allergen-specific antibody.
DOE STI Product/Final Report Number 3 Electrochemical Investigation of Novel Electrolytes for Ambient Temperature Sodium Batteries (2005)

The need for low-cost, high-energy density, durable, secondary batteries continues to rise with the demands of the electronics and automobile industries. A room-temperature version of the (high-temperature) ''Zebra Cell'' may provide an interesting technology for portable electronics and transportation. Sodium-based batteries have received attention as an alternative to the lithium-based batteries due to several factors including the absence of dendrite formation during sodium deposition and the abundance of sodium. This work focused on (1) the development of room-temperature ionic liquids (IL) for use in electrochemical devices, including batteries, (2) development and evaluation of secondary sodium batteries using room-temperature ILs, and (3) advancing the fundamental understanding of the electrochemical processes involving ILs and battery technology. Several objectives were accomplished during this program.
ChemInform Abstract: Novel Synthesis of 1‐Isochromanols via Hetero‐Diels‐Alder Reaction of Carbonyl Compounds with 1‐Trimethylsilyloxybenzocyclobutene as a Precursor of α‐Oxy‐o‐quinodimethane under Mild Conditions. (1996)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Integrated eight element Ku band transmit/receive beamformer chipset for low-cost commercial phased array antennas (2010)

An integrated eight element SiGe Ku band phased array and smart antenna beamformer chipset design is described. The beamformer chips include independent digital phase shifters and variable gain amplifiers in each of eight signal paths. The receive chip includes a low noise amplifier at each RF input, and the transmit chip includes a power amplifier at each RF output. Simulated performance meets design targets for the intended application to low-cost commercial phased array antennas for bidirectional satellite video and data ground terminals.