gebhart/patrepeval huggingface dataset:
Natural Autoantibody to MUC1 Is a Prognostic Indicator for Non–Small Cell Lung Cancer (2000)

A great deal of attention has been focused on the antitumor effects of anti-MUC1 humoral and cellular responses. We examined whether anti-MUC1 antibody is present in patients with lung cancer, and evaluated its prognostic value. Serum was obtained from 30 patients with nonresectable, non-small cell lung cancer (NSCLC) and 60 healthy volunteers. The presence of anti-MUC1 antibody was determined by enzyme-linked immunosorbent assay. The patients were observed for a median follow-up time of 54.0 mo. Overall survival was estimated by the Kaplan-Meier method. Multivariate analyses were performed using the Cox proportional hazards regression model. Anti-KL-6/MUC1 antibody levels of the patients were significantly lower than those of normal individuals (p < 0.001). One-year survival rate of patients with high concentrations of anti-KL-6/MUC1 antibody was significantly higher than that of patients with low levels of anti-KL-6/MUC1 antibody (90.9% versus 21.1%, p < 0.001). Anti-KL-6/MUC1 antibody status was most strongly correlated with mortality, followed by lymph node status and albumin levels, whereas sex, serum lactate dehydrogenase (LDH), and carcinoembryonic antigen (CEA) levels, and metastasis status did not correlate with mortality. These preliminary results indicate that the degree of decrease in antibody level may be associated with a patient's prognosis.
Properties of a specific interleukin 1 (IL 1) receptor on human Epstein Barr virus-transformed B lymphocytes: identity of the receptor for IL 1-alpha and IL 1-beta. (1986)

The properties of specific human interleukin 1 (IL 1) receptors on human Epstein Barr virus-transformed B lymphocytes (EBV-B) were studied. Purified human IL 1-beta from a myelomonocytic cell line (THP-1) was labeled with 125I by the Bolton-Hunter method without detectable loss of biological activity. Among four EBV-B cell lines tested, a pre-B cell type (VDS-O) specifically bound the highest amount of 125I-IL 1-beta. Maximal binding was reached within 20 min at 4 degrees C. Scatchard plot analysis of the binding of 125I-IL 1-beta to VDS-O cells yielded a Kd (dissociation constant) of 2.4 to 5.9 X 10(-10) M with 110 to 220 binding (receptor) sites/cell. The binding of 125I-IL 1-beta to VDS-O cells was also inhibited by F(ab)'2 fragments of anti-human IL 1 and recombinant human IL 1-alpha, as well as by unlabeled human IL 1-beta but not by recombinant lymphotoxin, recombinant tumor necrosis factor, or phorbol myristic acid, suggesting that IL 1-alpha and IL 1-beta bind specifically to the same receptor. The m.w. of IL 1 receptor on human EBV-B cells was estimated to be 60,000 by both the chemical cross-linking method and high pressure liquid chromatography (HPLC) gel filtration analysis of receptor extracted from membrane enriched fraction by a non-ionic detergent (CHAPS). The isoelectric point of solubilized human IL 1 receptor was 7.3 on HPLC chromatofocusing. The evidence of existence of IL 1 receptor on human EBV-B cells additionally supports the hypothesis that IL 1 may be an autocrine signal for these cells.
Developing Biologics Tablets: The Effects of Compression on the Structure and Stability of Bovine Serum Albumin and Lysozyme (2019)

Oral administration is advantageous compared to the commonly used parenteral administration for local therapeutic uses of biologics or mucosal vaccines, since it can specifically target the gastrointestinal (GI) tract. It offers better patient compliance, even though the general use of such a delivery route is often limited by potential drug degradation in the GI tract and poor absorption. Using bovine serum albumin (BSA) and lysozyme as two model proteins, we studied their solid-state properties, mechanical properties, and tabletability as well as effects of compaction pressure, particle size, and humidity on protein degradation. It was found that BSA and lysozyme are highly hygroscopic, and their tablet manufacturability (powder caking, punch sticking, and tablet lamination) is sensitive to the humidity. BSA and lysozyme exhibited high plasticity and excellent tabletability and remained amorphous at high pressure and humidity. As for protein stability, lysozyme was resistant to high pressure (up to 300 MPa) and high humidity (up to 93%). In contrast, BSA underwent aggregation upon compression, an effect that was more pronounced for smaller BSA particles. High humidity accelerated the aggregation of BSA during incubation, but it did not further synergize with mechanical stress to induce protein degradation. Thus, compression can potentially induce protein aggregation, but this effect is protein-dependent. Therefore, strategies (e.g., the use of excipients, optimized manufacturing processes) to inhibit protein degradation should be explored before their tablet dosage form development.
High-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticles (2016)

Organometal halide perovskite has recently emerged as a very promising family of materials with augmented performance in electronic and optoelectronic applications including photovoltaic devices, photodetectors, and light-emitting diodes. Herein, we propose and demonstrate facile solution synthesis of a series of colloidal organometal halide perovskite CH3NH3PbX3 (X = halides) nanoparticles with amorphous structure, which exhibit high quantum yield and tunable emission from ultraviolet to near-infrared. The growth mechanism and photoluminescence properties of the perovskite amorphous nanoparticles were studied in detail. A high-efficiency green-light-emitting diode based on amorphous CH3NH3PbBr3 nanoparticles was demonstrated. The perovskite amorphous nanoparticle-based light-emitting diode shows a maximum luminous efficiency of 11.49 cd/A, a power efficiency of 7.84 lm/W, and an external quantum efficiency of 3.8%, which is 3.5 times higher than that of the best colloidal perovskite quantum-dot-based light-emitting diodes previously reported. Our findings indicate the great potential of colloidal perovskite amorphous nanoparticles in light-emitting devices.
El soporte a la operación y conservación (2000)

La Estructura de Operacion y Conservacion (EOC) forma parte de los sistemas de gestion de los que dispone la Direccion General de Infraestructuras de Telefonica de Espana para soportar los procesos de negocio bajo su responsabilidad. La finalidad de la EOC es dar soporte a las actividades propias de la operacion y conservacion en la Red Telefonica Basica, asi como proporcionar a otros sistemas de la compania el acceso a la planta supervisada.
The RadA protein from a hyperthermophilic archaeon Pyrobaculum islandicum is a DNA‐dependent ATPase that exhibits two disparate catalytic modes, with a transition temperature at 75 °C (2000)

The radA gene is an archaeal homolog of bacterial recA and eukaryotic RAD51 genes, which are critical components in homologous recombination and recombinational DNA repair. We cloned the radA gene from a hyperthermophilic archaeon, Pyrobaculum islandicum, overproduced the radA gene product in Escherichia coli and purified it to homogeneity. The purified P. islandicum RadA protein maintained its secondary structure and activities in vitro at high temperatures, up to 87 degrees C. It also showed high stability of 18.3 kcal.mol-1 (76.5 kJ.mol-1) at 25 degrees C and neutral pH. P. islandicum RadA exhibited activities typical of the family of RecA-like proteins, such as the ability to bind ssDNA, to hydrolyze ATP in a DNA-dependent manner and to catalyze DNA strand exchange. At 75 degrees C, all DNAs tested stimulated ATPase activity of the RadA. The protein exhibited a break in the Arrhenius plot of ATP hydrolysis at 75 degrees C. The cooperativity of ATP hydrolysis and ssDNA-binding ability of the protein above 75 degrees C were higher than at lower temperatures, and the activation energy of ATP hydrolysis was lower above this break point temperature. These results suggest that the ssDNA-dependent ATPase activity of P. islandicum RadA displays a temperature-dependent capacity to exist in two different catalytic modes, with 75 degrees C being the critical threshold temperature.
Propeller Design for a future QESTOL Aircraft in the BNF Project (2012)

Due to increasing airport congestion the German research project 'Bürgernahes Flugzeug' (BNF, citizen friendly airplane) investigates the potential of aircraft for a possible future air transportation system integrating small airports. Key technologies like aerodynamics for developing new generation quiet, efficient, short take-off and landing (QESTOL) aircraft are meant to be made available via Computational Fluid Dynamics (CFD) and new wind tunnel data. Subject of these studies is a generic twin-engine single-aisle confguration with an active high-lift system and a turboprop propulsion system. With respect to aerodynamics,&#13;\nthe possible benefits of the propeller slipstream interaction with the fow field around an active high-lift wing are explored. The first step, the propeller design for the turboprop propulsion system of the aircraft is conducted taking aerodynamic and aeroacoustic constraints into account. This propeller is scaled down to suit a wind tunnel (w/t) model with&#13;\nan active high-lift wing. Aspects of the integration of the turboprop propulsion system on the wing half model and instrumentation of the propeller wind tunnel model are examined.
Eukaryotic mRNA cap binding protein: purification by affinity chromatography on sepharose-coupled m7GDP. (1979)

A 24,000-dalton polypeptide that binds strongly and can be specifically crosslinked to the 5'-terminal cap structure m7GpppN in eukaryotic mRNAs has been detected in protein synthesis initiation factor preparations [Proc. Natl. Acad. Sci. USA (1978) 75, 4843--4847]. This polypeptide has been purified to apparent homogeneity by one chromatographic passage through an affinity resin prepared by coupling the levulinic acid O2',3'-acetal of m7GDP to AH-Sepharose 4B. Translation, in HeLa cell extracts, of capped mRNAs including Sindbis virus, reovirus, and rabbit globin mRNAs was stimulated by the cap-binding protein under conditions that did not increase translation of noncapped RNAs of encephalomyocarditis virus and satellite tobacco necrosis virus.
The MHC Class I-Like IgG Receptor Controls Perinatal IgG Transport, IgG Homeostasis, and Fate of IgG-Fc-Coupled Drugs (2003)

Abs of the IgG isotype are efficiently transported from mother to neonate and have an extended serum t(1/2) compared with Abs of other isotypes. Circumstantial evidence suggests that the MHC class I-related protein, the neonatal FcR (FcRn), is the FcR responsible for both in vivo functions. To understand the phenotypes imposed by FcRn, we produced and analyzed mice with a defective FcRn gene. The results provide direct evidence that perinatal IgG transport and protection of IgG from catabolism are mediated by FcRn, and that the latter function is key to IgG homeostasis, essential for generating a potent IgG response to foreign Ags, and the basis of enhanced efficacy of Fc-IgG-based therapeutics. FcRn is therefore a promising therapeutic target for enhancing protective humoral immunity, treating autoimmune disease, and improving drug efficacy.
Good Fat, Essential Cellular Requirements for Triacylglycerol Synthesis to Maintain Membrane Homeostasis in Yeast (2009)

Storage triacylglycerols (TAG) and membrane phospholipids share common precursors, i.e. phosphatidic acid and diacylglycerol, in the endoplasmic reticulum. In addition to providing a biophysically rather inert storage pool for fatty acids, TAG synthesis plays an important role to buffer excess fatty acids (FA). The inability to incorporate exogenous oleic acid into TAG in a yeast mutant lacking the acyltransferases Lro1p, Dga1p, Are1p, and Are2p contributing to TAG synthesis results in dysregulation of lipid synthesis, massive proliferation of intracellular membranes, and ultimately cell death. Carboxypeptidase Y trafficking from the endoplasmic reticulum to the vacuole is severely impaired, but the unfolded protein response is only moderately up-regulated, and dispensable for membrane proliferation, upon exposure to oleic acid. FA-induced toxicity is specific to oleic acid and much less pronounced with palmitoleic acid and is not detectable with the saturated fatty acids, palmitic and stearic acid. Palmitic acid supplementation partially suppresses oleic acid-induced lipotoxicity and restores carboxypeptidase Y trafficking to the vacuole. These data show the following: (i) FA uptake is not regulated by the cellular lipid requirements; (ii) TAG synthesis functions as a crucial intracellular buffer for detoxifying excess unsaturated fatty acids; (iii) membrane lipid synthesis and proliferation are responsive to and controlled by a balanced fatty acid composition.
Time-averaged total force on a dipolar sphere in an electromagnetic field (2000)

We establish the time-averaged total force on a subwavelength-sized particle in a time-harmonic-varying field. Our analysis is not restricted to the spatial dependence of the incident field. We discuss the addition of the radiative reaction term to the polarizability to deal correctly with the scattering force. As an illustration, we assess the degree of accuracy of several previously established polarizability models.
Design of an efficient active noise cancellation circuit for in-ear headphones (2014)

This paper proposes an efficient active noise cancelling (ANC) circuit design for the in-ear headphones. We develop a hardware oriented Least Mean Square (LMS) adaptive algorithm, and design a modified high-performance feed-forward ANC architecture which only uses one microphone to effectively cancel broadband noise for the in-ear headphones. The proposed ANC circuit design has been successfully implemented through adopting the standard cell-based design flow based on the TSMC 90nm CMOS technology. Besides, the proposed design has been verified under versatile noisy scenarios for its real-time ANC performance by using a Field Programmable Gate Array (FPGA) platform. Experimental results show that the proposed high-performance circuit design can reduce disturbing noise of various frequency bands very well, and outperforms the existing works. The proposed design can attenuate the broadband pink noise between 300 Hz to 900 Hz, with a maximum performance of 18 dB. Moreover, the proposed design can achieve 406.5 k samples/sec data throughput rate at operating frequency of 50 MHz, at the costs of 111.7 k gates and power consumption of 4.47 mW.
Human T cell activation by OKT3 is inhibited by a monoclonal antibody to CD44 (1991)

The CD44 molecule, also known as Hermes lymphocyte homing receptor, human Pgp-1, and extracellular matrix receptor III, has been shown to play a role in T cell adhesion and activation. Specifically, anti-CD44 mAb block binding of lymphocytes to high endothelial venules, inhibit T cell-E rosetting, and augment T cell proliferation induced by the CD2 or CD3-TCR pathways. We have characterized an anti-CD44 mAb (212.3) which immunoprecipitates a 90-kDa protein and is specific for CD44 as shown by peptide mapping and antibody competition studies. Interestingly, our studies with 212.3 demonstrate that this CD44-specific mAb completely inhibits T cell proliferation stimulated by the anti-CD3 mAb, OKT3. Inhibition is not a result of reduced cell viability, but is associated with 1) inhibition of IL-2 production, 2) inhibition of IL-2R expression, and 3) inhibition of OKT3-mediated increases in intracellular Ca2+ levels. In addition, 212.3 does not inhibit proliferation by the T cell mitogens PHA or PWM nor does it inhibit proliferation in a mixed lymphocyte reaction. Similar to other anti-CD44 mAb, 212.3 also augments T cell proliferation induced by mAb directed against the T11(2) and T11(3) epitopes of CD2. Thus, these studies describe a novel CD44-specific mAb (212.3) that inhibits T cell activation by OKT3 by blocking early signal transduction. Furthermore, these studies suggest that "receptor cross-talk" between the CD3-TCR complex and CD44 may regulate T cell activation.
The prevalence and determinants of the K65R mutation in HIV-1 reverse transcriptase in tenofovir-naive patients (2002)

The K65R mutation in HIV-1 reverse transcriptase is associated with reduced susceptibility to abacavir and tenofovir. We established its prevalence within a large clinical database, and investigated correlations with other resistance-associated mutations and antiretroviral history. The presence of K65R is associated with previous abacavir use. Although rare, it is preferentially selected within non-thymidine analogue-containing regimens, compared with concurrent zidovudine or stavudine use, which is associated with thymidine analogue mutations. Both genetic routes may compromise abacavir and tenofovir activity.
Conservation of transcriptional activation functions of the NF-kappa B p50 and p65 subunits in mammalian cells and Saccharomyces cerevisiae. (1993)

The NF-kappa B transcription factor complex is composed of a 50-kDa (p50) and a 65-kDa (p65) subunit. Both subunits bind to similar DNA motifs and elicit transcriptional activation as either homo- or heterodimers. By using chimeric proteins that contain the DNA binding domain of the yeast transcriptional activator GAL4 and subdomains of p65, three distinct transcriptional activation domains were identified. One domain was localized to a region of 42 amino acids containing a potential leucin zipper structure, consistent with earlier reports. Two other domains, both acidic and rich in prolines, were also identified. Of perhaps more significance, the same minimal activation domains that were functional in mammalian cells were also functional in the yeast Saccharomyces cerevisiae. Coexpression of the NF-kappa B inhibitory molecule, I kappa B, reduced the transcriptional activity of p65 significantly, suggesting the ability of I kappa B to function in a similar manner in S. cerevisiae. Surprisingly, while the conserved rel homology domain of p65 demonstrated no transcriptional activity in either mammalian cells or S. cerevisiae, the corresponding domain in p50 was a strong transcriptional activator in S. cerevisiae. The observation that similar domains elicit transcriptional activation in mammalian cells and S. cerevisiae demonstrates strong conservation of the transcriptional machinery required for NF-kappa B function and provides a powerful genetic system to study the transcriptional mechanisms of these proteins.
Image Deblurring of Camera Under Display by Deep Learning (2020)

A deep learning method is provided in this paper to deblur images captured behind OLED screen named Camera Under Display (CUD). Because of optical diffraction of OLED pixel pattern, images captured by front camera under the display panel are unfavorably blurred. This paper proposed a modified GAN training network to deblur these images, with result showing perceptually clearer image with better restored high spatial frequency information.
Metabolic engineering of Clostridium acetobutylicum M5 for highly selective butanol production (2009)

To improve butanol selectivity, Clostridium acetobutylicum M5(pIMP1E1AB) was constructed by adhE1-ctfAB complementation of C. acetobutylicum M5, a derivative strain of C. acetobutylicum ATCC 824, which does not produce solvents due to the lack of megaplasmid pSOL1. The gene products of adhE1-ctfAB catalyze the formation of acetoacetate and ethanol/butanol with acid re-assimilation in solventogenesis. Effects of the adhE1-ctfAB complementation of M5 were studied by batch fermentations under various pH and glucose concentrations, and by flux balance analysis using a genome-scale metabolic model for this organism. The metabolically engineered M5(pIMP1E1AB) strain was able to produce 154 mM butanol with 9.9 mM acetone at pH 5.5, resulting in a butanol selectivity (a molar ratio of butanol to total solvents) of 0.84, which is much higher than that (0.57 at pH 5.0 or 0.61 at pH 5.5) of the wild-type strain ATCC 824. Unlike for C. acetobutylicum ATCC 824, a higher level of acetate accumulation was observed during fermentation of the M5 strain complemented with adhE1 and/or ctfAB. A plausible reason for this phenomenon is that the cellular metabolism was shifted towards acetate production to compensate reduced ATP production during the largely growth-associated butanol formation by the M5(pIMP1E1AB) strain.
Thiazolinone analogs of indolmycin with antiviral and antibacterial activity (1978)

A new improved large scale synthesis of 4-chloro-2,2 : 6,2-terpyridine is described in detail. Williamson type ether reactions were utilized for a high yield reaction of 4-chloro-2,2 : 6,2-terpyridine with ,-bishydroxy-functionalized poly(propylene oxide). The completeness of the functionalization was proven by NMR, GPC and MALDI-TOF-MS investigations. The application of ruthenium(III)/(II) chemistry allowed then the construction of ABA type non-covalent architectures.
Effect of alpha-difluoromethylornithine, an enzyme-activated irreversible inhibitor of ornithine decarboxylase, on L1210 leukemia in mice. (1978)

High power continuous wave output from diode lasers using low loss, low confinement, asymmetric structures is demonstrated. An asymmetric structure with an optical trap layer was grown by metal organic vapour phase epitaxy. Gain guided 50 µm wide stripe 1-3 mm long diode lasers were studied. 1.8 W of continuous wave optical power per uncoated facet was obtained at an injection current of 4.7 A (36 mW/µm). The threshold current density is 270-400 A/cm2
A dozen years of retro-inverso peptidomimetics (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA dozen years of retro-inverso peptidomimeticsMichael Chorev and Murray GoodmanCite this: Acc. Chem. Res. 1993, 26, 5, 266–273Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Published inissue 1 May 1993https://doi.org/10.1021/ar00029a007RIGHTS & PERMISSIONSArticle Views1109Altmetric-Citations177LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-Alerts Get e-Alerts