gebhart/patrepeval huggingface dataset:
On the Reported Experimental Evidence for the Quasi-Fermi Level Split in Quantum Dot Intermediate-Band Solar Cells (2010)

The reported experimental evidence for the quasi-Fermi level split in quantum dot intermediate-band solar cells is carefully examined. It is shown that a separation of the quasi-Fermi level of the intermediate band from that of the conduction band is not consistent with the experimental results of the quantum efficiency and the luminescence intensity of the In As/Ga As cells. Much better agreement with the experimental results is achieved by assuming a rise in temperature to about 525 K of the optically-active regions of the cell resulting from the heating effect of the relatively high forward current used in the luminescence experiments. It is argued that the lack of a quasi Fermi level split in this case is associated with the absence of a gap in the emission/absorption spectrum of sub-bandgap photons.
Hematologic and cytogenetic (CTG) response to lenalidomide (CC-5013) in patients with transfusion-dependent (TD) myelodysplastic syndrome (MDS) and chromosome 5q31.1 deletion: Results of the multicenter MDS-003 Study (2005)

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Parallel joint transform correlator applied to Devanagari script recognition (1998)

A novel, to our knowledge, scheme for a parallel joint transform correlator system is demonstrated by the introduction of a five-channel zone-plate image multiplicator combined with photographic referencing and is applied to the recognition of Devanagari script. For considering the script's specific features, a partial image was obtained by means of windowing with 25 x 25 pixels out of a 64 x 64 pixel image of full-size characters and was employed for correlation. A comprehensive measurement of all 38 fundamental characters, namely, 1444 correlation pairs, showed satisfactory discrimination performance.
Immune and Genetic Correlates of Vaccine Protection Against Mucosal Infection by SIV in Monkeys (2011)

The RV144 vaccine trial in Thailand demonstrated that an HIV vaccine could prevent infection in humans and highlights the importance of understanding protective immunity against HIV. We used a nonhuman primate model to define immune and genetic mechanisms of protection against mucosal infection by the simian immunodeficiency virus (SIV). A plasmid DNA prime/recombinant adenovirus serotype 5 (rAd5) boost vaccine regimen was evaluated for its ability to protect monkeys from infection by SIVmac251 or SIVsmE660 isolates after repeat intrarectal challenges. Although this prime-boost vaccine regimen failed to protect against SIVmac251 infection, 50% of vaccinated monkeys were protected from infection with SIVsmE660. Among SIVsmE660-infected animals, there was about a one-log reduction in peak plasma virus RNA in monkeys expressing the major histocompatibility complex class I allele Mamu-A*01, implicating cytotoxic T lymphocytes in the control of SIV replication once infection is established. Among Mamu-A*01-negative monkeys challenged with SIVsmE660, no CD8(+) T cell response or innate immune response was associated with protection against virus acquisition. However, low levels of neutralizing antibodies and an envelope-specific CD4(+) T cell response were associated with vaccine protection in these monkeys. Moreover, monkeys that expressed two TRIM5 alleles that restrict SIV replication were more likely to be protected from infection than monkeys that expressed at least one permissive TRIM5 allele. This study begins to elucidate the mechanisms of vaccine protection against immunodeficiency viruses and highlights the need to analyze these immune and genetic correlates of protection in future trials of HIV vaccine strategies.
Supplementary Data from Targeting BET Proteins BRD2 and BRD3 in Combination with PI3K-AKT Inhibition as a Therapeutic Strategy for Ovarian Clear Cell Carcinoma (2023)

&lt;p&gt;Supplementary Table 4. The results of BET inhibitor sensitizer drug screens.&lt;/p&gt;
Practical Stereocontrolled Access to Thioisosteres of Essential Signaling Molecules and Building Blocks for Life: Nucleoside Di- and Triphosphates (2022)

Nucleoside diphosphates and triphosphates impact nearly every aspect of biochemistry, however, the use of such compounds as tools or medicinal leads for nucleotide-dependent enzymes and receptors is hampered due to rapid metabolism. Meanwhile, a successful strategy to address the instability of the monophosphate moiety in oligonucleotide therapeutics has been accomplished by their isosteric replacement with phosphorothioates. On the contrary, no practical methods exist to rapidly and controllably access stereopure di- and triphosphate thioisosteres of both natural and unnatural nucleosides. Here we show how a modular, reagent-based platform can enable the stereocontrolled and scalable synthesis of a library of such molecules. Such thioisosteric replacements can have profound effects on the potency and stability of lead candidates, as evidenced by data demonstrating that ligand-receptor interactions can be dramatically influenced by P-stereochemistry.
Investigation of Laser Ablation Induced Defects in Crystalline Silicon Solar Cells (2014)

In this paper, the laser induced defects that result from a picosecond laser ablation (wavelength 355 mm) of passivating SiO2 and SiNx layers on textured silicon surface are investigated for various laser fluence ranging from 0.48J/cm2 to 1.43 J/cm2. In the first part of this paper, we employ the Wright etching technique to identify and quantify thermally propagated dislocations as one of the resulting defects as a function of the laser fluence. Dislocations densities in the order of 4 - 13 x 106 cm-2 are measured. The second part of the paper takes a closer look at the impact of laser induced defects on the effective lifetime and surface recombination current. By comparing both parameters on structures with laser ablation and photo-lithography to pattern the dielectric, it is observed that dislocations formed during the laser ablation process do indeed enhance minority carrier recombination within the silicon wafers. The recombination current at the laser ablated area, for a moderate laser power, is shown to be four times larger than in the case of using lithography.
Submilliamp long wavelength vertical cavity lasers (2002)

We demonstrate an improved laterally oxidized long wavelength (1.55-/spl mu/m) InGaAsP vertical cavity DBR QW laser. The devices exhibit the first submilliamp threshold current as well as the highest reported CW (64/spl deg/C) and pulsed (85/spl deg/C) operating temperatures.
First Natural Urease Inhibitor from Euphorbia decipiens. (2003)

Abstract For Abstract see ChemInform Abstract in Full Text.
Modern Applications in Membrane Science and Technology (2011)

Preface 1. Introduction Isabel C. Escobar and Bart Van der Bruggen Part I. Membranes for Energy, Pervaporation, Gas Separation, and CO2 Capture 2. Analysis of the Development of Membrane Technology for Gas Separation and CO2 Capture Bart Van der Bruggen, Isabel C. Escobar, and Patricia Luis 3. Accelerated Materials Design for Hydrogen Separation Membranes R. Hu, M. C. Gao, and O. N. Do?an 4. Functional Nanotube Membranes for Hydrophobicity-Based Separations by Initiated Chemical Vapor Deposition (iCVD) Ayse Asatekin and Karen K. Gleason 5. Comparison of Membrane Performance of PDMS-Based Membranes during Ethanol/Water Pervaporation and Fermentation Broth Pervaporation S. Chovau, S. Gaykawad, A. J. J. Straathof, and B. Van der Bruggen 6. Development and Characterization of Ionic Liquid-Functionalized Nanocomposite Membranes Hamid R. Hakimelahi, Pei Li, and Maria R. Coleman 7. Separation of Aromatic/Aliphatic Mixtures by Pervaporation Using ortho-Functionalized Polyimide Membranes Claudio P. Ribeiro Jr., Benny D. Freeman, Douglass S. Kalika, and Sumod Kalakkunnath 8. Gas Separation Properties of Triptycene-Based Polyimide Membranes Yoon Jin Cho and Ho Bum Park 9. Simulation of Hollow Fiber Spinning Y. Su and G. G. Lipscomb Part II. Membranes for Liquid Separations 10. Membranes for Water Treatment Applications - An Overview Tilak Gullinkala and Isabel C. Escobar 11. Membranes in the Dairy Industry Heath H. Himstedt and Jamie A. Hestekin 12. A Fourier Transform Infrared Spectroscopic Based Biofilm Characterization Technique and Its Use to Show the Effect of Copper-Charged Polypropylene Feed Spacers in Biofouling Control Richard Hausman and Isabel C. Escobar 13. Comparison of the Permeation of MgCl2 versus NaCl in Highly Charged Sulfonated Polymer Membranes Geoffrey M. Geise, Benny D. Freeman, and Donald R. Paul 14. Studying the Effect of Feed Water Characteristics on the Hydrophobicity of Cellulose Acetate Ultrafiltraion Membranes and Its Correlation to Membrane Morphology: A Chemical Force Microscopy Approach Amr M. Zaky, Isabel C. Escobar, and Cyndee L. Gruden 15. Carbon Nanotube/Polyethersulfone Composite Membranes for Water Filtration Evrim Celik and Heechul Choi 16. Investigation of the Effects of Thickness and Presence of Pore Formers on Tailor-Made Ultrafiltration Polysulfone Membranes Sepideh Hakim Elahi and Isabel C. Escobar 17. Reversible Ion Exchange-Membrane (RIX-M) Process for Fouling Free and Energy Efficient Desalination of Seawater Sudipta Sarkar, Ryan C. Smith, and Arup K. SenGupta 18. Surface Functionalization of Polybenzimidazole Membranes To Increase Hydrophilicity and Charge Michael Flanagan, Richard Hausman, Brett Digman, Isabel C. Escobar, Maria Coleman, and Tai-Shung Chung Editor's Biographies Indexes Author Index Subject Index
Methane production from coal by a single methanogen (2016)

Coal-bed methane is one of the largest unconventional natural gas resources. Although microbial activity may greatly contribute to coal-bed methane formation, it is unclear whether the complex aromatic organic compounds present in coal can be used for methanogenesis. We show that deep subsurface-derived Methermicoccus methanogens can produce methane from more than 30 types of methoxylated aromatic compounds (MACs) as well as from coals containing MACs. In contrast to known methanogenesis pathways involving one- and two-carbon compounds, this "methoxydotrophic" mode of methanogenesis couples O-demethylation, CO<sub>2</sub> reduction, and possibly acetyl-coenzyme A metabolism. Because MACs derived from lignin may occur widely in subsurface sediments, methoxydotrophic methanogenesis would play an important role in the formation of natural gas not limited to coal-bed methane and in the global carbon cycle.
Inverse approach to elasticity reconstruction in shear wave imaging (2002)

Acoustic shear waves of low frequency can be detected and measured using a phase contrast based magnetic resonance imaging technique called MR Elastography or correlation or phase measurement based echo ultrasound techniques. Spatio-temporal variations of displacements caused by the propagating waves can be used to estimate local values of the elasticity of the object being imaged. The currently employed technique for estimating the elasticity from the wave displacement maps, the local frequency estimator (LFE), has fundamental resolution limits and also has problems with shadowing and other refraction-related artifacts. These problems can be overcome with an inverse approach using Green's function integrals which directly solve the wave equation problem for the propagating wave. The complete measurements of wave displacements as a function of space and time over the object of interest obtained by the above techniques permit an iterative approach to inversion of the wave equation to obtain elasticity and attenuation maps. This article describes the inversion algorithm and evaluates the improvements over the LFE for simulated data and in-vivo breast measurements.
ChemInform Abstract: SYNTHESIS OF NAPHTHOQUINONE ANTIBIOTICS: CONJUGATE ADDITION/ELECTROPHILE TRAPPING WITH ACYLNICKEL CARBONYLATE ANIONS (1983)

Abstract Aus dem Naphthochinon‐ketal (I) erhält man mit Organolithium‐Verbindungen (II) und Allyliodid (III) die Addukte (IVa) und (IVb), die zu (V) reduziert und dehydratisiert werden.
Femtosecond refractive-index tailoring of an optical fiber and phase retrieval from far-field measurements (2013)

A refractive-index change is written inside an optical fiber close to the end face by femtosecond laser light. The induced phase change is measured by analyzing the far-field intensity profiles before and after the irradiation.
Novel TCNQ-stacking motifs in (12-crown-4)-complexes of alkali metal TCNQ salts (2021)

An unusual crossed dimer motif is present in the solid state in the infinite TCNQ˙ − columns of the bis-12-crown-4 complexes of Li and NaTCNQ.
High-Temperature Behavior of Cellulose I (2011)

We use molecular simulation to elucidate the structural behavior of small hydrated cellulose Iβ microfibrils heated to 227 °C (500 K) with two carbohydrate force fields. In contrast to the characteristic two-dimensional hydrogen-bonded layer sheets present in the cellulose Iβ crystal structure, we show that at high temperature a three-dimensional hydrogen bond network forms, made possible by hydroxymethyl groups changing conformation from trans-gauche (TG) to gauche-gauche (GG) in every second layer corresponding to "center" chains in cellulose Iβ and from TG to gauche-trans (GT) in the "origin" layer. The presence of a regular three-dimensional hydrogen bond network between neighboring sheets eliminates the possibility of twist, whereas two-dimensional hydrogen bonding allows for microfibril twist to occur. Structural features of this high-temperature phase as determined by molecular simulation may explain several experimental observations for which no detailed structural basis has been offered. This includes an explanation for the observed temperature and crystal size dependence for the extent of hydrogen/deuterium exchange, and diffraction patterns of cellulose at high temperature.
New models and methods for matting and compositing (2004)

Matting and compositing are fundamental operations in graphics and visual effects. Despite having enjoyed wide usage for many years, traditional matting and compositing have limitations. Traditional matting methods either require special setups or cannot handle objects with complex silhouettes. Furthermore, the traditional compositing model is effective in modeling color blending effects but not reflection, refraction, and shadows. In this dissertation, we address these limitations and present a set of new compositing models and matting methods. To pull mattes of complex silhouettes from natural images, we introduce a principled statistical approach called Bayesian image matting. We also extend this algorithm to handle video sequences with the help of optical flow computation and background estimation. On the compositing side, previous work on environment matting has been shown to handle refraction and reflection, but the resulting mattes are not very accurate. We propose a more accurate environment matting model and method that requires using more images. For shadows, we develop a physically-motivated shadow compositing equation. Based on this equation, we introduce a shadow matting method for extracting shadow mattes from videos with natural backgrounds, and we demonstrate a novel process for acquiring the photometric and geometric properties of the background to enable creation of realistic shadow composites. Finally, we present a novel application of Bayesian image matting for animating still pictures.
alpha-Fetoprotein and albumin mRNA levels in liver regeneration and carcinogenesis. (1983)

Using a titration procedure, we measured the proportion of alpha-fetoprotein (AFP) and albumin mRNA in normal, regenerating, and preneoplastic rat livers. AFP mRNA constitutes approximately 0.006% of the polysomal polyadenylated RNA of normal livers and this proportion increases only slightly before the onset of DNA synthesis in liver regeneration induced by partial hepatectomy or CCl4 injury. In either model of liver regeneration, the proportion of AFP mRNA in polysomal RNA is highest approximately 24 h after the peak of DNA synthesis. The increase in the proportion of AFP mRNA in polysomal RNA is relatively small during liver regeneration (2-4-fold) but is larger (30-50-fold) in preneoplastic livers of rats fed a choline-deficient diet containing 0.1% ethionine. In contrast to those changes in AFP mRNA, albumin mRNA levels remain unchanged during liver regeneration and double in preneoplastic livers. Our results indicate that the concept of "retrodifferentiation" as it applies to liver regeneration and certain types of hepatic neoplasia needs reevaluation.
Equivalent circuit model of a waveguide‐type Ge/Si avalanche photodetector (2010)

Abstract An equivalent circuit with an inductive element is presented for modelling a waveguide‐type Ge/Si avalanche photodetector (APD) with a separate‐absorption‐charge‐multiplication structure. A genetic algorithm optimization is used to extract the parameters for the elements included in the equivalent circuit by fitting the measured S 22 . Due to a resonance in the avalanche region, there is a peak enhancement for the frequency response of the APD when the bias voltage is relatively high. This is observed in the measurement and agrees with the theoretical calculation shown in this paper. (© 2010 WILEY‐VCH Verlag GmbH &amp; Co. KGaA, Weinheim)
The Effect of SiCp Addition on Corrosion and Wear Behavior of Conventionally and Microwave Sintered PM 316L (2017)

In this study, corrosion and wear behaviors of PM 316L matrix composite materials reinforced with SiC particles in amounts of 10 vol% are evaluated. The samples are uniaxially cold pressed, and then sintered by two different methods, conventional sintering and microwave sintering. Corrosion properties are evaluated by both immersion and cyclic polarization tests. Wear properties are evaluated by dry sliding wear tests. Brinell and Vickers microhardness tests are applied, in order to support the wear test results. The results show that 10 vol% SiC p reinforced composite samples have acceptable corrosion properties and improved wear resistence in a similar manner, as they show good mechanical properties. In addition, microwave sintering results in better wear properties compared to conventional method.
1042: Age-Related Changes in Phosphorylation of Endothelial Nitric Oxide Synthase in the Rat Penis (2005)

You have accessJournal of UrologyDiscussed Poster, Tuesday, May 24,2005, 8:00 am - 12:00 pm1 Apr 20051042: Age-Related Changes in Phosphorylation of Endothelial Nitric Oxide Synthase in the Rat Penis Biljana Musicki, Melissa F. Kramer, Robyn E. Becker, and Arthur L. Burnett Biljana MusickiBiljana Musicki More articles by this author , Melissa F. KramerMelissa F. Kramer More articles by this author , Robyn E. BeckerRobyn E. Becker More articles by this author , and Arthur L. BurnettArthur L. Burnett More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(18)35198-XAboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "1042: Age-Related Changes in Phosphorylation of Endothelial Nitric Oxide Synthase in the Rat Penis." The Journal of Urology, 173(4S), p. 283 © 2016 by American Urological AssociationFiguresReferencesRelatedDetails Volume 173Issue 4SApril 2005Page: 283 Advertisement Copyright & Permissions© 2016 by American Urological AssociationMetricsAuthor Information Biljana Musicki More articles by this author Melissa F. Kramer More articles by this author Robyn E. Becker More articles by this author Arthur L. Burnett More articles by this author Expand All Advertisement PDF DownloadLoading ...
1H‐nmr studies of polyoxyethylene‐bound homo‐oligo‐L‐methionines (1982)

Abstract The use of 1 H‐nmr spectroscopy is demonstrated to be a useful analytical method to characterize the structure of synthetic peptides attached to soluble, macromolecular polyoxyethylene (POE) supports in the liquid‐phase method (LPM) of peptide synthesis. We report an extensive 360‐MHz 1 H‐nmr study of POE‐bound homo‐oligo‐ L ‐methionine peptides. A combination of high field and selective saturation or Redfield pulse methods allows resolution of individual backbone NH and α‐CH resonances of dilute peptides in the presence of strong resonances from macromolecular POE and/or protonated solvents. The nmr spectra for the POE‐bound peptides in CDCl 3 are qualitatively similar to those of the low‐molecular‐weight Boc‐ L ‐Met n ‐OMe peptide esters. This corroborates other observations that POE has little effect on peptide stucture. The backbone α‐CH region of peptides is overlapped by signals from the terminal oxyethylene group of POE, but the peptide side‐chain and low‐field backbone NH resonances are well resolved. In trifluoroethanol the Boc‐( L ‐Met) n ‐NH‐POE heptamer and octamer adopt the right‐handed α‐helical structure, and the present nmr studies provide evidence for two strong intramolecular hydrogen bonds to stabilize the helices. In water, the N‐deblocked derivatives, ( L ‐Met) n ‐NH‐POE oligomers adopt β‐sheet structure and manifest well‐resolved nonequivalent NH resonances with 6–7 Hz 3 J NH‐CH coupling constants.
High Open Circuit Voltage in Regioregular Narrow Band Gap Polymer Solar Cells (2014)

The regioregular narrow band gap (E(g) ~1.5 eV) conjugated polymer PIPCP was designed and synthesized. PIPCP contains a backbone comprised of CPDT-PT-IDT-PT repeat units (CPDT = cyclopentadithiophene, PT = pyridyl[2,1,3]thiadiazole, IDT = indacenodithiophene) and strictly organized PT orientations, such that the pyridyl N-atoms point toward the CPDT fragment. Comparison of PIPCP with the regiorandom counterpart PIPC-RA illustrates that the higher level of molecular order translates to higher power conversion efficiencies (PCEs) when incorporated into bulk heterojunction (BHJ) organic solar cells. Examination of thin films via absorption spectroscopy and grazing incidence wide-angle X-ray diffraction (GIWAXS) experiments provides evidence of higher order within thin films obtained by spin coating. Most significantly, we find that PIPCP:PC61BM blends yield devices with an open circuit voltage (V(oc)) of 0.86 V, while maintaining a PCE of ~6%. Comparison against a wide range of analogous narrow band gap conjugated polymers reveals that this V(oc) value is particularly high for a BHJ system with band gaps in the 1.4-1.5 eV range thereby indicating a very low E(g) - eV(oc) loss.