gebhart/patrepeval huggingface dataset:
Self-supervised Neural Articulated Shape and Appearance Models (2022)

Learning geometry, motion, and appearance priors of object classes is important for the solution of a large variety of computer vision problems. While the majority of approaches has focused on static objects, dynamic objects, especially with controllable articulation, are less explored. We propose a novel approach for learning a representation of the geometry, appearance, and motion of a class of articulated objects given only a set of color images as input. In a self-supervised manner, our novel representation learns shape, appearance, and articulation codes that enable independent control of these semantic dimensions. Our model is trained end-to-end without requiring any articulation annotations. Experiments show that our approach performs well for different joint types, such as revolute and prismatic joints, as well as different combinations of these joints. Compared to state of the art that uses direct 3D supervision and does not output appearance, we recover more faithful geometry and appearance from 2D observations only. In addition, our representation enables a large variety of applications, such as few-shot reconstruction, the generation of novel articulations, and novel view-synthesis.
Meeting the Needs of Cellular Dual-Mode(EGPRS/3G) Power Amplifiers with aUnique J-PHEMT Process and NovelControl Architecture (2004)

Based upon a unique Junction-PHEMT
device, a novel method of providing high efficiency PA
power control for variable envelope modulation schemes is
demonstrated for EDGE and WCDMA. The method of
control allows for substantially higher efficiency levels
under typical handset operating conditions than those of
conventional linear power amplifiers, on a par with polar
loop solutions, whilst avoiding the necessity for complex
control loops. An immediate benefit of the approach
includes the ability to add EDGE front-end capability to a
GSM handset without incurring a significant size or
component cost impact. Furthermore, the method of control
aids the future prospect of single transmit strip multi-mode
configurations (GSM/EDGE/WCDMA) in order to achieve
considerable size and cost advantages.
A high performance file system for non-volatile main memory (2016)

Emerging non-volatile main memories (NVMMs) provide data persistence at the main memory level. To avoid the double-copy overheads among the user buffer, the OS page cache, and the storage layer, state-of-the-art NVMM-aware file systems bypass the OS page cache which directly copy data between the user buffer and the NVMM storage. However, one major drawback of existing NVMM technologies is the slow writes. As a result, such direct access for all file operations can lead to suboptimal system performance.
Software Defined Radios: A Software GPS Receiver Example (2007)

Software defined radios (SDR) are gaining popularity because of the capability of reprogramming them to work under different standards with minimum hardware change. A software radio can be programmed to acquire data from a GPS satellite as well as a GLONASS satellite. This paper describes the implementation of a non-real time GPS software receiver. The receiver was verified to decode a set of non-real time raw GPS data bin on the LI carrier and the civil navigation message using the C/A code that was stored on a hard drive.
Lymphangiomatosis: Clinical Overview (2011)

"Lymphangiomatosis" is a general term for excessive growth of aberrant lymphatic vessels. The impact of lymphangiomatosis can be devastating due to osteolysis and/or multi-organ involvement. The disorders are heterogeneous, and treatment is dependent upon disease location and symptoms. Most reports are single cases or small case series, predominantly in the orthopedic and radiologic literature. Basic research focused on lymphatic disorders may translate into new therapies for these disorders.
S142 The role of H3K27 methylation in vascular endothelial cell proliferation and function: implications for pulmonary arterial hypertension (2013)

<h3>Introduction and Objectives</h3> There is increasing interest in the role of epigenetic gene regulation in the pathogenesis of pulmonary arterial hypertension (PAH), a condition associated with pulmonary vascular cell proliferation. Methylation on histone H3K27 (H3K27me3) has been found to be a key regulator of development and cell homeostasis. Methylation at H3K27 can be reversed by Jumonji C (JmjC) domain-containing proteins, JMJD3. We were interested to determine the immunohistochemical distribution of H3K27me3 and JMJD3 proteins in patients with IPAH and the effect of GSK-J4, an inhibitor of JMJD3, on markers of pulmonary vascular cell proliferation. <h3>Methods</h3> Immunohistochemistry for JMJD3 and H3K27me3 was performed on human lung from normal healthy controls and patients with idiopathic PAH. The role of JMJD3 on cell cycle regulator (cyclin) expression in response to serum stimulation, with and without GSK-J4, was performed on normal human pulmonary artery endothelial cells (HPAECs) and RT-qPCR was then performed using QuantiTec primer assays. Chromatin Immunoprecipitation (CHiP) was performed antibody against H3K27me3 on normal HPAECs and analysed by quantitative PCR. <h3>Results</h3> We found that the expression of JMJD3 protein is increased in the walls of pulmonary arteries of patients with idiopathic PAH compared to health control. This correlated to a decreased expression of H3K27me3. Treatment of HPAECs with GSK-J4, the inhibitor of JMJD3, <i><i>in vitro</i>,</i> significantly increased cell cycle regulator p19, p27, CDK4 and CDK6 mRNA expression (Fig. 1, n = 3), whilst having no effect on p14, p16, p21 and CDK2 (data not shown). Furthermore, CHiP using a specific H3K27me3 antibody, followed by RT-qPCR analysis, demonstrated that GSK-J4 treatment increased H3K27me3 occupation on the transcription start sites of p27 and CDK4, whilst the negative control compound GSK-J5 had no effect (n = 2). <h3>Conclusion</h3> Our data suggest that JMJD3 and H3K27 histone methylation could play an important role in cell cycle progression and cell cycle exit of pulmonary vascular cells in patients with idiopathic PAH. As such drugs such as GSK-J4 may provide a therapeutic option in the future to reverse pulmonary vascular remodelling.
Diffusion-controlled growth of ferrite plates in plain-carbon steels (1985)

AbstractAbstractThe implementation of the theory of diffusion-controlled growth of ferrite plates in plain-carbon steels is critically assessed. It is found that the use of empirically extrapolated diffusion coefficients, phase boundaries, and thermodynamic functions leads to errors in calculations of growth rate. The errors become most important for low transformation temperatures, leading to exaggerated growth rates. Ways of avoiding these difficulties are suggested, and a new analysis of experimental data indicates that the lengthening of Widmanstatten ferrite plates in Fe–C alloys occurs at a rate which is influenced by the diffusion of carbon in the austenite ahead of the interface, assuming that the plates adopt a tip radius consistent with the maximum growth velocity. However, there is a systematic discrepancy between theory and experiment: plate-growth theory seems to underestimate the lengthening rate by some 5 μm s−1. This may have something to do with the lath shape of Widmanstatten ferrite, but an analysis using needle–growth theory does not resolve the problem for data obtained at low lengthening rates. In general, plate–growth theory gives a better explanation of experimental data. The growth of bainite sheaves occurs at a rate much faster than expected from carbon diffusion-controlled growth. If the maximum-velocity hypothesis is incorrect (as it is for dendritic solidification), the above-mentioned discrepancies would be larger.MST/192
Multi-filament Inhibition and Resulting Solitary Wave Formation in Condensed Matter (2016)

Variable focusing geometries are used to eliminate multi-filamentation in favor of a stable single filament propagating as a spatial solitary wave at input powers up to 1400 times the critical power in normally dispersive media.
Measurement of testosterone: how important is a morning blood draw? (2015)

Based on these findings, it may be possible to expand the blood draw time window for measurement of serum TT. This community-based study was not prospectively design to determine the most appropriate blood draw window for TT measurement. Only a single TT measurement was made without consideration for day-to-day variability, and TT levels were not measured in the same men at different blood draw times.
Blue phosphorescent organic light-emitting devices utilizing cesium–carbonate-doped 2,4,6-tris(2′,4′-difluoro-[1,1′-biphenyl]-4-yl)-1,3,5-triazine (2011)

We report an alternative, high-yielding synthesis for the known compound 2,4,6-tris(2′,4′-difluoro-[1,1′-biphenyl]-4-yl)-1,3,5-triazine (tris-(dFB)Tz). The energy of the lowest unoccupied molecular orbital (ELUMO) for tris-(dFB)Tz is estimated to be −3.5 eV from electrochemical measurements. The deep ELUMO of tris-(dFB)Tz affords a material with excellent electron acceptor characteristics for use in n-doped electron transport layers. Tris-(dFB)Tz shows a four order of magnitude increase in the number of carriers on doping with 8 wt. % Cs2CO3. Enhanced electron injection was also observed on doping with Cs2CO3, which eliminated the necessity for a separate LiF electron injection layer. Blue phosphorescent organic light-emitting devices (OLEDs) were fabricated using n-doped tris-(dFB)Tz electron transport layers. OLEDs with thick (700-Å) Cs2CO3-doped tris-(dFB)Tz electron transport layers had lower operating voltages than OLEDS with an undoped electron transport layer of bis(diphenylphosphoryl)dibenzothiophene (PO15), which has previously been used in low-voltage, high-efficiency OLEDs. The tris-(dFB)Tz results indicate that aromatic substituted triazines may be promising materials for use as electron acceptors in n-doped organic electronic systems.
A novel extraction technique for the effective channel length of MOSFET devices (1995)

A novel method using the charge pumping technique for extracting the effective channel length of MOSFET devices is presented, in which the effective area approach is used and the edges of the area are defined clearly. It is shown that the extracted effective channel length is independent of the measuring biases and the proposed new method is simple, accurate, and reliable, as compared to those using the I-V method. With the knowledge of the device dopant profiles, the extracted channel length with 0.01 /spl mu/m accuracy can be achieved. Moreover, the proposed method is applicable to either n- or p-channel, conventional or LDD, surface or buried channel MOSFET's.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
EPR INVESTIGATIONS OF SIZE EFFECTS IN THE CRYSTAL FIELD OF SMALL DIELECTRIC PARTICLES OF Gd3+-DOPED SrCl2 (1977)

Small particles (~ 100 Å in diameter) of Gd3+-doped SrCl2 have been prepared by evaporating a bulk sample in a low-pressure argon atmosphere. EPR measurements were made at X-band and room temperature. In the case of small particles, the observed Gd3+ spectrum exhibits two significant differences relative to the bulk powder spectrum. First, the cubic crystal-field parameter |b4| is increased by 1.6 ± 0.1 % for the small-particle sample. This effect is interpreted as due to a lattice-parameter contraction of approximately 0.27 % as compared to the bulk material. Second, the line widths of the EPR transitions are consistently larger in the small-particle case. Annealing at 400 °C for 1 min. coagulates the small particles and, following this anneal, the parameter b4 and the line widths are equal to those of the bulk material.
British boy receives trachea transplant built with his own stem cells (2010)

A 10 year old British boy has become the first child in the world to receive a transplanted organ that is being rebuilt inside his body using his own stem cells.

Doctors hailed the surgery as a milestone in the development of regenerative medicine, bringing closer the prospect of replacing damaged or worn-out organs with functioning replacements that are not rejected by the body or of treating damaged organs in situ with stem cells to stimulate self repair.

The nine hour operation was carried out at Great Ormond Street Hospital, London, last week by a British and Italian team of specialists. Doctors said that the boy, who has not been identified, was out of bed, breathing freely and speaking.

Martin Birchall, a specialist in regenerative medicine at …
Verification techniques for substrate coupling and their application to mixed-signal IC design (1996)

This paper presents techniques for the analysis of substrate-coupled noise in mixed-signal integrated circuits. Advantages and limitations of some commonly employed verification techniques for substrate coupling are outlined. A preprocessed boundary element method introduced in this paper utilizes precomputed z parameters to generate an analytical model for substrate impedance in a preprocessing stage. Truncated series expansions of the analytical impedance model are used to accelerate solution of the resulting boundary element equations. A methodology that applies these fast techniques to the verification of large mixed-signal circuits and results that confirm its efficiency are described. This complete methodology has been applied to the design and verification of an industrial mixed-signal video analog-to-digital converter IC for substrate noise problems.
High performance digital communications in mobile channels (1984)

Random amplitude and phase modulations experienced in mobile channels result in a number of system limitations and link impairments. In this paper, a novel approach named "tone calibrated technique" which mitigates multipath fading induced distortions in a digital link is presented. It is shown that a low power pilot tone can be used to continuously calibrate a mobile link against time varying impairments. Coherent demodulation of data is possible by means of the pilot tone without using a conventional tracking loop. Since very little power is consumed by the pilot tone, the performance of the tone calibrated technique is only marginally below BPSK in an unfaded environment.
Low-frequency-noise monitoring of current collapse in AlGaN/GaN high-electron-mobility transistors on sapphire substrate (2009)

Current collapse has been studied in unpassivated and SiN-passivated AlGaN/GaN heterostructure devices grown on a sapphire substrate by means of low-frequency-noise measurement at low temperatures, indicating this to be the most sensitive and powerful tool for assigning the deep levels in these complex and complicated structures. Generation–recombination (G–R) noise was explicitly observed in the unpassivated AlGaN/GaN heterostructure at low temperatures (T = 50–110 K) with the activation energy of 47 meV. This level was found to be dramatically decreased by the SiN passivation, from −205 dBA Hz−1/2 down to −217 dBA Hz−1/2, the current collapse being cured at the same time. With the SiN passivation a further G–R noise corresponding to the deeper traps of 131 and 235 meV became comparable to that corresponding to 47 meV.
mir-101-3p is a key regulator of tumor metabolism in triple negative breast cancer targeting AMPK (2016)

mir-101-3p has been reported to be a tumor suppressor and a promising therapeutic target in cancer. Recently, AMPK dysfunction has been highlighted in cancers, including breast cancer. The aim of this study is to investigate the biological roles of mir-101-3p and AMPK in breast cancer. Our research demonstrated that AMPK was up-regulated in breast cancer tissues and cell lines, especially in triple negative breast cancer (TNBC). High-expression of AMPK correlated with poor outcome in both total breast cancer and TNBC patients. Ectopic expression of AMPK improved glucose uptake, glycolysis, proliferation of TNBC cells in vitro and its tumorigenicity in vivo. AMPK was predicted to be a direct target of mir-101-3p. The luciferase reporter assay was performed to certificate this prediction. The expression of AMPK was suppressed by transfection of mir-101-3p in TNBC cells. Over-expression of mir-101-3p or knock-down of AMPK inhibited glucose metabolism and proliferation of TNBC cells in vitro. Our study provides evidence that mir-101-3p- AMPK axis could be a promising therapeutic target in TNBC targeting tumor metabolism.
Convergence and minimal mutation criteria for evaluating early events in tRNA evolution. (1980)

The convergence of ancestral sequences independently constructed from different branches of a phylogenetic tree can be used as a test of homology of data sequences. This criterion has shown that all phenylalanine tRNAs are related to a common ancestor, whereas eukaryotic and prokaryotic tyrosine tRNAs may have independent origins. All glycine tRNAs share a common ancestor. The glycine tRNA family splits according to the purine or pyrimidine nature of the first anticodon base prior to the divergence of eukaryotes and prokaryotes. The structural similarity between some prokaryotic glycine and and valine tRNAs is the result of their derivation from a common ancestor that existed previous to the divergence of the different glycine tRNAs. These results support models of genetic code evolution involving the incremental elaboration of earlier, simpler codes.
Glucose‐Derived Ras Pathway Inhibitors: Evidence of Ras–Ligand Binding and Ras–GEF (Cdc25) Interaction Inhibition (2007)

Too complex to change. New glucose-derived phenylhydroxylamines inhibit nucleotide exchange on human Ras. NMR and SPR experiments indicated that the Ras–GEF interaction is inhibited when the Ras–ligand complex is formed.
Supramolecular Aggregates of Amphiphilic Gadolinium Complexes as Blood Pool MRI/MRA Contrast Agents:  Physicochemical Characterization (2006)

In this paper, we present the development of a new potential blood pool contrast agent for magnetic resonance imaging applications (MRA/MRI) based on gadolinium complexes containing amphiphilic supramolecular aggregates. A novel amphiphilic unimer, containing the DTPAGlu chelating agent covalently bound to two C18 alkylic chains, has been synthesized. DTPAGlu is a well-known chelating agent for a wide number of ions such as the paramagnetic metal ion Gd3+ used as contrast agent in MRA/MRI. The wide aggregation behavior of this surfactant, as free base or as gadolinium complex, has been studied and compared by means of dynamic light scattering, small-angle neutron scattering and cryogenic transmission electron microscopy techniques. Near neutral pH in both cases, the dominant aggregates are micelles. The high negative actual charge of the surfactant headgroup causes a strong headgroups repulsion, promoting the formation of large and high curvature aggregates. By decreasing pH and less markedly increasing the ionic strength, we observe a micelle-to-vesicle transition driven by a decreased electrostatic repulsion. A straightforward switch between different aggregation states can be particularly useful in the development of pH-responsive MRA/MRI contrast agents.
An air flow sensor modeled on wind receptor hairs of insects (2002)

A new conceptual air flow sensor modeled on wind-receptor hairs of insects which can detect low velocity air flow is demonstrated. Since the viscous force is dominant at micro size, the velocity of air flow can be determined by measuring the force on a sensory hair. Two mechanical structures modeled on insect sensory hairs have been fabricated. An array of a 1-DOF (Degree Of Freedom) sensory hairs has selectivity of frequencies. A 2-DOF sensory hair array can detect the direction angle of air flow. Both sensors have cantilevers and strain gauges fabricated at the bottom of the sensory hairs. The output voltage was proportional to the velocity of air flow in good agreement with the theory. Both the 1-DOF sensory hair and the 2-DOF sensory hair arrays detected the velocity of air flow from several tens of cm/s to 2 m/s. Also, the 2-DOF sensory hair array detected the direction angle of 360 degrees as a function of a sinusoidal curve.
MPEG-4: a flexible coding standard for the emerging mobile multimedia applications (2002)

This paper analyses the relevance and performance of the emerging MPEG-4 audiovisual coding standard for emerging mobile multimedia applications. Some results are presented for one of the MPEG-4 profiles targeting mobile scenarios.
Synthesis and photophysical properties of a “face-to-face” stacked tetracene dimer (2015)

A covalently linked tetracene dimer has been prepared and its molecular structure is characterized by (1)H NMR and MALDI-TOF mass spectroscopy, and elemental analysis. The minimized molecular structure reveals that the tetracene subunits in a dimer adopt a "face-to-face" stacked configuration. Its absorption spectrum differs significantly from that of the monomeric counterpart in solution, suggesting the presence of strong interactions between the two tetracene subunits. In solution, the fluorescence spectrum is dominated by a band at around 535 nm, due to an oxidative impurity. In the longer wavelength range, a short-lived lower energy emission can be identified as the intrinsic emission of the dimer. In a polystyrene matrix or at low temperatures, the lifetime of the lower energy emission lengthens and it becomes more prominent. We suggest that the interactions between the two tetracene subunits produce a short-lived, lower energy "excimer-like" state. The fluorescence decays show no observable dependence on an applied magnetic field, and no obvious evidence of significant singlet fission is found in this dimer. This research suggests that even though there are strong electronic interactions between the tetracene subunits in the dimer, singlet fission cannot be achieved efficiently, probably because the formation of "excimer-like" states competes effectively with singlet fission.
Debunking a Surgical Myth: Do Not Touch the Temporalis (2019)

The authors' low reoperation rates for recurrent deformity, in combination with persistent temporalis overcorrection in 5.6% of patients, should dispel the myth that manipulation of the temporalis invariably results in atrophy. The muscle may be surgically manipulated, as long as plastic surgery principles are followed.
Miniaturized Wearable Respirable Dust Monitor (WEARDM) for Underground Coal Mines: Designs and Experimental Evaluation (2019)

presents the design, fabrication, and experimental evaluation of individual components of an air-microfluidic miniaturized wearable respirable dust monitor (WEARDM) that directly measures the respirable mass fraction of the dust in underground coal mines. The device uses a dual resonator gravimetric sensing approach to maintain uniform collection efficiency across the respirable particle distribution. The device is an order of magnitude smaller and less expensive than comparable devices. The WEARDM system is optimized for a low flow rate which balances low power usage and small form factor.