gebhart/patrepeval huggingface dataset:
Organic and Physical Chemistry of Polymers (2007)

1. Introduction. 2. Cohesive energies of polymeric systems. 3. Molecular structure of polymers. 4. Thermodynamics of Macromolecular Systems. 5. Conformational structures and morphologies. 6. Determination of molar masses and study of conformations and morphologies by physical methods. 7. Step-growth polymerizations. 8. Chain polymerizations. 9. Reactivity and chemical modification of polymers. 10. Macromolecular synthesis. 11. Thermo-mechanical properties of polymers. 12. Mechanical properties of polymers. 13. Rheology, Formulation and Polymer Processing Techniques. 14. Natural and artificial polymers. 15. Linear (monodimensional) synthetic polymers. 16. Three-dimensional synthetic polymers.
Electrically Controlling and Monitoring InP Nanowire Growth from Solution (2009)

Indium phosphide nanowires are of significant technological interest for applications ranging from single junction solar cells to high speed electronics. However, the efficient placement and integration of nanowires into devices remains a significant challenge. Here we extend the technique of electrically controlled solution-liquid-solid (EC-SLS) catalytic nanowire growth to indium phosphide. We are able to control the amount of nanowire growth by varying the bias voltage between the electrodes in solution, and to monitor nanowire bridging across the electrodes by recording the conductivity as a function of growth time. The as-grown indium phosphide nanowires exhibit n-type conductivity as was determined by the in situ integration of nanowires into a field effect transistor geometry. The ability to monitor nanowire growth and electrically control nanowire placement are valuable tools for fabricating nanowire devices. The EC-SLS process has the potential to aid in the fabrication of nanowire devices that could find applications in nanoelectronics, and as electrodes in solar cells and batteries.
A Sub-nL Chip Calorimeter and Its Application to the Measurement of the Photothermal Transduction Efficiency of Plasmonic Nanoparticles (2021)

Here, we introduce a microchip for differential measurements of aqueous samples in twin calorimetric arms with a sub-nL enclosed space. Each arm features a fluidic microchannel located in close proximity to a thin-film resistance thermometer and heater patterned on a low-stress SiN membrane held over a Si cavity with suspension beams. The chip exhibits a rapid response with a thermal time constant of less than 10 ms in atmosphere and a residual thermal conductance below <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$6{\mu }\text{W}{\cdot }\text{K}^{-1 }$ </tex-math></inline-formula> , one of the lowest reported and accounts for the excellent sensitivity registered in vacuum up to 11 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\text{V}{\cdot }\text{W}^{-1 }$ </tex-math></inline-formula> . These values are in good agreement with those ones predicted by modeling using finite element method, lumped-capacitance analysis, and calorimeter electrothermal circuit simulation together with the measurement system. Long suspension beams in each arm ensure uniform temperature maintained across its membrane as revealed by the fluorescence-based melting curve analysis. We share the specific heat capacity values of water, glycerin, and mineral oil accurately measured by the chip. Lastly, we demonstrate the chip calorimeter utility on the measurement of the photothermal transduction efficiency of plasmonic nanoparticles, which makes our study further unique in expanding the applications of chip calorimeters. [2021-0044]
Myelopolyneuropathy Due to Copper Deficiency or Zinc Excess?—Reply (2004)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA Neurology HomeNew OnlineCurrent IssueFor Authors Podcast Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA Neurology journal
Bad data packet capture device (2023)

An apparatus and method for capturing data packets for analysis on a network computing system includes a sending node and a receiving node connected by a bi-directional communication link. The sending node sends a data transmission to the receiving node on the bi-directional communication link, and the receiving node receives the data transmission and verifies the data transmission to determine valid data and invalid data and verify retransmissions of invalid data as corresponding valid data. A memory device communicates with the receiving node for storing the invalid data and the corresponding valid data. A computing node communicates with the memory device and receives and performs an analysis of the invalid data and the corresponding valid data received from the memory device.
Modeling Biooxidation of Iron in Packed-Bed Reactor (1999)

A model based on Monod kinetics and originally developed for use with rotating biological contactors was modified for use with a packed-bed column reactor. The reactor was filled with expanded polystyrene beads to immobilize chemolithotrophic bacteria and fed up to 570 mg L−1 (∼10 mM) ferrous iron [Fe(II)] in simulated acid mine drainage. A tracer study indicated changing behavior as a function of hydraulic residence time (HRT), with a transition from complete mix flow behavior to plug flow behavior as HRT decreased. The Fe(II) oxidation efficiency exceeded 95% until the HRT was reduced below 0.5 h. The reactor performance could be predicted with the model using estimates from the literature for û and Y. The experimentally determined half-saturation constant Ks was found to range from 5 to 12 mg L−1. The maximum volumetric capacity constant Rmax was estimated to be ∼360 mg Fe(II)h−1 L−1 beads under complete mix flow conditions but appeared to be as high as 724 mg Fe(II)h−1 L−1 beads as conditions approached plug flow at short HRTs.
Electronic Conduction Mechanisms in Insulators (2017)

The current density-electric field (J - ξ) characteristics of four insulators of dramatically different electrical qualities are assessed in terms of their operative electronic conduction mechanisms. Conduction in the two high-quality insulators is dominated by Ohmic conduction and Fowler-Nordheim tunneling, whereas conduction in the two low-quality insulators involves Ohmic conduction and space-charge limited current (SCLC). Ohmic conduction and SCLC are somewhat puzzling mechanisms for contributing to insulator leakage current since they require the existence of an Ohmic contact at the cathode. Our conventional understanding of an Ohmic contact makes it difficult to ascertain how an Ohmic contact could be formed to a wide bandgap insulator. This Ohmic contact dilemma is resolved by formulating an equivalent circuit appropriate for assessing the J - ξ characteristics of an insulator and then recognizing that an insulator Ohmic contact is obtained when the injection-limited current density from the cathode electrode is greater than that of the operative bulk-limited current density, i.e., Ohmic or SCLC for the four insulators under consideration.
Cross Segment Decoding for Improved Quality of Experience for Video Applications (2013)

In this paper, we present an improved algorithm for decoding live streamed or pre-encoded video bit streams with time-varying qualities. The algorithm extracts information available to the decoder from a high visual quality segment of the clip that has already been received and decoded, but was encoded independently from the current segment. The proposed decoder is capable of significantly improve the Quality of Experience of the user without incurring significant overhead to the storage and computational complexities of both the encoder and the decoder. We present simulation results using the HEVC reference encoder and standard test clips, and discuss areas of improvements to the algorithm and potential ways of incorporating the technique to a video streaming system or standards.
A Virtual Reality Based Navigation System for Endovascular Surgery (2004)

Endovascular surgery provides a minimally invasive solution for the treatment of aortic aneurysms. Fluoroscopic guidance involves X-rays exposure and loss of space information. We have developed a navigation system allowing real-time visualisation of the endovascular tools in a 3D model of the vessels without any radiation exposure. A modified endoprosthesis is equipped with a magnetic sensor tracked by the Aurora magnetic localizer. The registration step uses 2.5D ultrasonography to replace pre-operative CT data in the Operating Room referential. The Virtual Reality based navigation system shows the location of the endoprosthesis inside a 3D CT model of the aorta. Endovascular procedure benefits from a reduced radiation exposure.
Portable Multi-Spectral Imaging: Devices, Vertical Integration, and Applications (2020)

Recent advances in semiconductor and packaging technologies have accelerated the miniaturization of portable sensing devices including visible-domain cameras, IR cameras, and millimeter-wave (mmWave) radars. Simultaneously, image and sensor data processing capabilities based on Systems-on-Chip (SoCs) have evolved as well to the extent toward the goal of implementing learning-based automatic recognition capabilities. This paper discusses the challenges and opportunities associated with the vertical sensors-to-software integration of portable systems capable of performing multi-spectral imaging, where data from different portions of the EM spectrum is captured, processed, and displayed simultaneously. An example hardware implementation, multi-spectral image data, and potential applications are discussed.
Attosecond Science: The First Decade and Beyond (2013)

We shall review the technologies that opened the door to accessing the hitherto immeasurably fast atomic-scale motion of electrons as well as light field oscillations and address future prospects of this young discipline.
Supermode Decomposition During Operation of a 7-Core Fiber Laser (2014)

Lasing operation of a tunable fiber laser employing a flat cleaved 7-core gain fiber fusion spliced with a standard fiber Bragg grating is investigated. We present the first modal decomposition during multicore laser operation. © 2014 OSA.
Sonodynamically‐induced apoptosis, necrosis, and active oxygen generation by mono‐l‐aspartyl chlorin e6 (2007)

In this study, we investigated the induction of apoptosis by ultrasound in the presence of a photochemically active chlorin, mono-l-aspartyl chlorin e6 (NPe6). HL-60 cells were exposed to ultrasound for up to 3 min in the presence and absence of NPe6, and the induction of apoptosis was examined by analyzing cell morphology, DNA fragmentation, and caspase-3 activity. Cells treated with 80 microM NPe6 and ultrasound clearly showed membrane blebbing and cell shrinkage, whereas significant morphologic changes were not observed in cells exposed to either ultrasound alone, at the same intensity, or NPe6 alone. Also, DNA ladder formation and caspase-3 activation were observed in cells treated with both ultrasound and NPe6 but not in cells treated with ultrasound or NPe6 alone. In addition, NPe6 substantially enhanced nitroxide generation by ultrasound in the same acoustical arrangement. Sonodynamically-induced apoptosis, caspase-3 activation, and nitroxide generation were significantly suppressed by histidine. These results suggest that the combination of ultrasound and NPe6 sonochemically induces apoptosis as well as necrosis in HL-60 cells. They further suggest that some ultrasonically-generated active species, deactivatable by histidine, are the major mediators to induce the observed apoptosis.
Chlorination of (Phebox)Ir(mesityl)(OAc) by Thionyl Chloride (2015)

Pincer (Phebox)Ir(mesityl)(OAc) (2) (Phebox = 3,5-dimethylphenyl-2,6-bis(oxazolinyl)) complex, formed by benzylic C-H activation of mesitylene (1,3,5-trimethylbenzene) using (Phebox)Ir(OAc)2OH2 (1), was treated with thionyl chloride to rapidly form 1-(chloromethyl)-3,5-dimethylbenzene in 50% yield at 23 °C. A green species was obtained at the end of reaction, which decomposed during flash column chromatography to form (Phebox)IrCl2OH2 in 87% yield.
Sign2Speech: A Novel Sign Language to Speech Synthesis Pipeline (2022)

The lack of assistive Sign Language technologies for members of the Deaf community has impeded their access to public information, and curtailed their civil rights and social inclusion. In this paper, we introduce a novel proof-of-concept method for end-to-end Sign Language to speech translation without an intermediate text representation.We propose an LSTM-based method to generate speech from hand pose, where the latter can be obtained from applying an off-the-shelf pose predictor to fingerspelling videos. We train our model using a custom dataset of synthetically generated signs annotated with speech labels, and test on a real-world dataset of fingerspelling signs. Our generated output resembles real-world data sufficiently on quantitative measurements. This indicates that our techniques can be used to generate speech from signs, without reliance on text. The use of synthetic datasets further reduces the reliance on real-world, annotated data. However, results can be further improved using hybrid datasets, combining real-world and synthetic data. Our code and datasets are available at https://github.com/DanBigioi/Sign2Speech.
Interaction between Poly(ADP-ribose) and NuMA Contributes to Mitotic Spindle Pole Assembly (2009)

Poly(ADP-ribose) (pADPr), made by PARP-5a/tankyrase-1, localizes to the poles of mitotic spindles and is required for bipolar spindle assembly, but its molecular function in the spindle is poorly understood. To investigate this, we localized pADPr at spindle poles by immuno-EM. We then developed a concentrated mitotic lysate system from HeLa cells to probe spindle pole assembly in vitro. Microtubule asters assembled in response to centrosomes and Ran-GTP in this system. Magnetic beads coated with pADPr, extended from PARP-5a, also triggered aster assembly, suggesting a functional role of the pADPr in spindle pole assembly. We found that PARP-5a is much more active in mitosis than interphase. We used mitotic PARP-5a, self-modified with pADPr chains, to capture mitosis-specific pADPr-binding proteins. Candidate binding proteins included the spindle pole protein NuMA previously shown to bind to PARP-5a directly. The rod domain of NuMA, expressed in bacteria, bound directly to pADPr. We propose that pADPr provides a dynamic cross-linking function at spindle poles by extending from covalent modification sites on PARP-5a and NuMA and binding noncovalently to NuMA and that this function helps promote assembly of exactly two poles.
High-quality, high-repetition rate, ultrashort electron bunches generated with an RF-cavity (2015)

In collaboration with FEI Company, we are studying the possi- bility of using microwave TM110 streak cavities in combination with a slit, to chop a continuous electron beam into 100 fs elec- tron bunches.We have shown that this can be done with minimal increase in transverse emittance and longitudinal energy spread. Furthermore, these bunches are created at a repetition rate of 3 GHz. Accurately synchronized to a mode-locked laser system, this allows for high-frequency pump-probe experiments with the beam quality of high-end electron microscopes. At Eindhoven University of Technology, we will soon implement such a cavity in a 200 keV Tecnai, which should result in high- frequency ultrafast (S)TEM with sub-ps time-resolution while maintaining the atomic spatial resolution of the TEM.
CD1 Presents Antigens from a Gram-Negative Bacterium,Haemophilus influenzaeType b (1998)

Human CD1 is a family of nonpolymorphic major histocompatibility complex class I-like molecules capable of presenting mycobacterial lipids, including lipoarabinomannan (LAM), to double-negative (DN; CD4(-) CD8(-)) as well as CD8(+) T cells. Structural similarities between LAM and the capsular polysaccharides of gram-negative bacteria led us to consider the latter as candidate CD1 ligands. We derived two CD1-restricted DN T-cell populations which proliferated to Haemophilus influenzae type b (Hib) antigen. One T-cell population also proliferated to proteinase K-treated Hib antigen, suggesting that it recognized a nonpeptide. Our work thus expands the universe of T cell antigens to include nonpeptides distinct from mycobacterial lipids and suggests a potential role for CD1-restricted T cells in immunity to Hib.
Interim analysis of the phase 1a/b study of chimeric fibril-reactive monoclonal antibody 11-1F4 in patients with AL amyloidosis (2017)

"Interim analysis of the phase 1a/b study of chimeric fibril-reactive monoclonal antibody 11-1F4 in patients with AL amyloidosis." Amyloid, 24(sup1), pp. 58–59
Laboratory Astrophysics Experiments in X-Ray Transfer Physics Relevant to Cosmic Accretion-Powered Sources (1988)

Abstract The interpretation of upcoming cosmic soft X-ray spectroscopic observations may require a vast improvement in the state of our knowledge of basic atomic physics and radiation transfer processes, particularly for the important class of accretion-powered systems such as cataclysmic variables, X-ray binaries, and active galactic nuclei. For these sources, short wavelength spectral features are formed in the transfer of X-radiation from a powerful central source outward through a cooler, surrounding medium. The line emitting gas is photoionized and the level populations are determined largely by recombination cascades and photoexcitation as opposed to collisional effects. These processes can be rather complex and many uncertainties remain. We are developing a new approach to this problem using time-resolved studies of laser produced plasmas. Experiments which are currently underway include the measurements of: (a) inner and outer shell photoabsorption cross-sections of intermediate ions of abundant elements, and (b) fluorescent excitation processes due to wavelength coincidences of resonant transitions from different ions. In connection with this program, we have developed a novel reflection grating spectrometer coupled to a streak camera which provides high resolution spectra at soft X-ray and EUV wavelengths at the sub-nanosecond level. We describe our laboratory facility and some of our preliminary experimental results.
Light‐Induced Fragrance Release from 2‐Oxoacetates: Impact of Compound Mixtures on the Efficiency of the Norrish Type II Photoreaction in Solution and in Encapsulation Systems (2022)

Abstract Understanding interactions between perfumes and fragrance delivery systems is key to optimising the performance of perfumed consumer articles in practical applications, where complex compound mixtures are typically used. Possible interactions of perfume ingredients on the kinetics of the Norrish type II photofragmentation of 2‐oxoacetates, used as light‐sensitive profragrances for the controlled release of volatile perfumery aldehydes and ketones, were investigated in solution. We found that ( Z )‐phenyl alkene derivatives isomerised to the corresponding E ‐isomers in the presence of 2‐oxo‐2‐phenylacetates, and thus considerably decreased the rate of the targeted photofragmentation. The light‐induced fragrance release from encapsulated or non‐encapsulated 2‐oxo‐2‐phenylacetate profragrances in the presence of different amounts of perfumes showed that compounds interfering with the photoreaction should be encapsulated to only a minimum extent in core‐shell microcapsules, independent of whether the profragrance is encapsulated in the same or in a different capsule, or whether it is part of the non‐encapsulated perfume oil.
Modulation Transfer Function Measurement Using Three- and Four-bar Targets (1995)

Modulation-transfer-function (MTF) measurement often involves the use of three- and four-bar resolution targets. In the conversion of three- and four-bar image data to MTF, biased results can occur when we use series-expansion techniques appropriate for square-wave targets of infinite extent. For systems where the image data are digitally recorded, a convenient and accurate conversion of bar-target data to MTF can be performed using a Fourier-domain method.
Core Antibiotic-Induced Transcriptional Signatures Reflect Susceptibility to All Members of an Antibiotic Class (2021)

Current growth-based antibiotic susceptibility testing (AST) is too slow to guide early therapy. We previously developed a diagnostic approach that quantifies antibiotic-induced transcriptional signatures to distinguish susceptible from resistant isolates, providing phenotypic AST 24 to 36 h faster than current methods. Here, we show that 10 transcripts optimized for AST of one fluoroquinolone, aminoglycoside, or beta-lactam reflect susceptibility when the organism is exposed to other members of that class. This finding will streamline development and implementation of this strategy, facilitating efficient antibiotic deployment.
Establishing the HIV reservoir: HIV-susceptible cells and the signals that recruit them (2017)

Abstract HIV-1 infected individuals require lifelong antiretroviral therapy (ART). If ART is discontinued, HIV rebounds from a reservoir of cells containing latent provirus—persistence of this reservoir is the most significant roadblock to curing people infected with HIV. The HIV reservoir is formed rapidly following infection and remains relatively stable throughout the lifetime of an infected individual on ART: this reservoir persistence likely stems from a central memory phenotype of host T cells. Transmitted HIV binds and enters cellular targets via the co-receptor, CCR5, which is primarily expressed on effector memory CD4 T cells. How does HIV rapidly establish a central memory reservoir? Abortive HIV infection of lymphoid CD4 T cells activates IFI16, which can form inflammasomes, triggering pyroptosis. IFI16 also can activate STING to produce type 1 interferon and the CCL2 chemokine. Thus, an early innate immune response to HIV sets up a zone of inflammation. CCL2 attracts cells expressing the receptor CCR2. Strikingly, CCR2 delineates a population of lymphoid CD4 T which co-express CCR5 and markers of central memory (CCR7 &amp; CD62L)—precisely the same type of cells that make up the viral reservoir. We found that these lymphoid CCR2+ T cells migrate in response to CCL2 and are susceptible to infection with R5- or X4-tropic strains of HIV. We propose that CCL2 produced early in HIV infection lures CCR2+ central memory T cells to the site of inflammation. Here these cells can become productively infected and produce virus, or become latently infected and contribute to the stable reservoir. These findings raise the possibility that inflammation contributes to seeding of the latent reservoir, and might be reduced by antagonists of CCL2/CCR2.