gebhart/patrepeval huggingface dataset:
Ion Conductive Characteristics of Alkylborane Type and Boric Ester Type Polymer Electrolytes Derived from Mesitylborane (2003)

Alkylborane type and boric ester type polymer electrolytes bearing mesitylboron units were prepared by hydroboration polymerization or dehydrocoupling polymerization using mesitylborane. The obtained well-defined organoboron polymer electrolytes showed ionic conductivities of 3.05 × 10-5−5.22 × 10-6 S/cm at 50 °C in the presence of various lithium salts. The maximum conductivity was observed when LiTFSI was doped to boric ester type polymers. The lithium ion transference number was calculated to be 0.35−0.50, indicating a significant anion trapping effect of the organoboron unit. The alkylborane type polymer exhibited a higher lithium ion transference number due to stronger Lewis acidity of the alkylborane unit. The organoboron polymer electrolytes were subjected to polymer reaction with organolithium reagents in aim of immobilizing the anion to the polymer chain as borate anion. After the reaction with phenyllithium, ionic conductivities of 9.45 × 10-7−8.22 × 10-7S/cm were observed with a lithium ion transference number of 0.78−0.82. When pentafluorophenyllithium or naphthyllithium was employed as an organolithium reagent, the conductivity increased by 1 order of magnitude due to the improved dissociation degree of the lithium borate unit in the presence of electron-withdrawing substituent.
The E alpha promoter: a linker-scanning analysis (1991)

To accurately delineate the DNA sequence elements involved in the transcriptional regulation of the murine MHC class II gene E alpha, we have constructed a set of "linker-scanning" mutants of the E alpha promoter region. These were made by the gapped heteroduplex technique and result in a set of 10-bp replacement mutations, covering the -206 to -6 stretch of the promoter. The effect of these mutations on transcriptional activity was evaluated in several systems, either by transfection into cultured cells or by in vitro transcription. The data points to the now classical X and Y boxes as the most important control elements, either for constitutive expression in B lymphoma cells, or for IFN-gamma-inducible expression in macrophages. Motifs upstream of the X box also play a role, but are somewhat less critical. Overall, we find no marked difference between regulatory strategies in B lymphomas or activated macrophages.
ECDC and WHO/Europe joint report on tuberculosis surveillance and monitoring in Europe (2014)

Preview this article: ECDC and WHO/Europe joint report on tuberculosis surveillance and monitoring in Europe, Page 1 of 1 < Previous page | Next page > /docserver/preview/fulltext/eurosurveillance/19/11/art20741-en-1.gif
Synthesis and Photovoltaic Properties of New Low Bandgap Isoindigo-Based Conjugated Polymers (2011)

A series of new isoindigo-based low banbap polymers, containing thiophene, thieno[3,2-b]thiophene and benzo[1,2-b:4,5-b′]dithiophene as donors, have been synthesized by Stille cross-coupling reaction. Their photophysical, electrochemical and photovoltaic properties have been investigated. These new polymers exhibit broad and strong absorption between 400 and 800 nm with absorption maxima around 700 nm. The HOMO energy levels of polymers vary between −5.20 and −5.49 eV and the LUMO energy levels range from −3.66 to −3.91 eV. The optical bandgaps of the polymers are optimized for solar cell applications and they are at about 1.5 eV. Polymer solar cells (PSC) based on these new polymers were fabricated with device structures of ITO/PEDOT:PSS/polymers: PC71BM (1:2, w/w)/LiF/Al. The photovoltaic properties of the polymers have been evaluated under AM 1.5G illumination at 100 mW/cm2 with a solar simulator. The combination of broad absorption, optimal bandgap and well matched energy levels with those of PCBMs makes these isoindigo-based low bandbap polymers promising materials for photovoltaic applications.
Dendritic cell function at low physiological temperature (2010)

Compared with the stable core temperature, the skin temperature is lower and varies depending on ambient temperature and convection conditions. The function of DCs, which are plentiful in the skin at lower physiological temperatures, has not been reported. We show that DC performed some functions normally at 28°C, including phagocytosis and macropinocytosis. TLR-4 signaling via MAPK pathways was delayed at 28°C but reached normal levels, which may explain the observed slower kinetics of stimulated macropinocytosis and TNF production. TLR-4-induced NO production was compromised severely at 28°C. Collagen degradation and migration through matrigel-coated transwell inserts were decreased, but no effect on podosome number or DC migration through noncoated transwell filters was seen. Lowering the temperature differentially regulated functions associated with the role of DCs in adaptive immunity. LPS-induced up-regulation of CD86 was normal; however, CD40 up-regulation was suppressed after TLR-4 stimulation at 28°C. Nonactivated DC processed and presented antigen on MHC class II equally well at 28°C and 37°C. However, DCs that were loaded with antigens and stimulated with TLR ligand at 28°C were poor at activating T cells at 37°C compared with DCs that were activated and loaded with antigen at 37°C.
Synthesis and reactivity of OsH(.eta.2-CH2PMe2)(PMe3)3 and of the basic dihydridoosmium complex cis-OsH2(PM3)4 (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and reactivity of OsH(.eta.2-CH2PMe2)(PMe3)3 and of the basic dihydridoosmium complex cis-OsH2(PM3)4Helmut Werner and Josef GotzigCite this: Organometallics 1983, 2, 4, 547–549Publication Date (Print):April 1, 1983Publication History Published online1 May 2002Published inissue 1 April 1983https://pubs.acs.org/doi/10.1021/om00076a013https://doi.org/10.1021/om00076a013research-articleACS PublicationsRequest reuse permissionsArticle Views162Altmetric-Citations44LEARN 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 InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Review of tissue simulating phantoms with controllable optical, mechanical and structural properties for use in optical coherence tomography (2012)

We review the development of phantoms for optical coherence tomography (OCT) designed to replicate the optical, mechanical and structural properties of a range of tissues. Such phantoms are a key requirement for the continued development of OCT techniques and applications. We focus on phantoms based on silicone, fibrin and poly(vinyl alcohol) cryogels (PVA-C), as we believe these materials hold the most promise for durable and accurate replication of tissue properties.
Selective Molecular Recognition of Trihydroxybenzenes (1989)

The host compound 1 with a conical cavity binds, like two related hosts, trihydroxybenzenes, which are thereby noticeably stabilized towards oxidation. The results suggest multiple hydrogen bonding between host and guest in the cavity.
Towards low-cost systems for measuring visual cues of driver fatigue and inattention in automotive applications (2006)

Recent studies show that driver fatigue and inattention are major causes of fatal road accidents. A large number of these accidents could be avoided if the vehicles were equipped with a) sensors that reliably could monitor the attention and alertness cues of the drivers, and b) systems that, based on the sensor input, could warn the drivers in time. Today, camera-based systems can measure such attention cues, and are tested in automotive in-cabin installations with two or more cameras. Camera-based solutions are non-intrusive, they can measure head position and orientation as well as gaze direction and eyelid closure, and they can be used to identify the driver for other tasks. However until now, no camera-based system has met the requirements from the car manufacturers on compactness and cost. Here we present the principles behind Smart Eye AntiSleep, which is a compact one-camera system specially designed for automotive in-cabin applications. AntiSleep measures 3D head position, head orientation, gaze direction and eyelid closures. AntiSleep uses one camera and two IR-flashes. With its own illumination, AntiSleep is highly robust to all natural illumination conditions and can efficiently handle disturbing reflexes in eyeglasses. The system is fully automatic and requires no manual intervention during initialisation.
Dynamic light scattering system with a novel scattering cell for the measurement of particle diffusion coefficients (1996)

We present a novel optical scattering cell for the determination of the particle diffusion coefficient by dynamic light scattering, which can be utilized for particle size analysis and viscosity measurements. A major advantage of the light scattering setup introduced is the possibility of performing measurements without having to know the refractive index of the liquid used. Test results are given for the diffusion coefficient of silica particles in water, which show a total standard deviation including measurements at different angles of 0.5%.
Surfactant-Augmented Functional Silica Nanoparticle Based Nanofluid for Enhanced Oil Recovery at High Temperature and Salinity (2019)

Nanofluids in recent years have shown great potential as a chemical enhanced oil recovery (EOR) technology, thanks to their excellent performance in altering interfacial properties. However, because of the great challenge in preparing stable systems suitable for an elevated temperature and a high salinity environment, expanding the application of nanofluids has been greatly restrained. In this work, a novel nanofluid was prepared by integrating positively charged amino-terminated silica nanoparticles (SiNP-NH<sub>2</sub>) with negatively charged anionic surfactant (Soloterra 964) via electrostatic force. The resulted nanofluid could be stored at relatively high salinity (15 wt % NaCl solution) and high temperature (65 °C) for more than 30 days without aggregation. Successful coating of the surfactant on target SiNPs was verified by Fourier transform infrared spectrometry and the surface charge and size distribution. In addition, the potential of the nanofluid in recovering oil was investigated by analyzing the nanofluid/Bakken oil interfacial tension and the variation trend of the oil contact angle when brine was replaced by nanofluids. Experimental results showed that the water-oil interfacial tension of the Bakken crude oil decreased by 99.85% and the contact angle increased by 237.8% compared to the original value of 13.78 mN/m and 43.4°, respectively, indicating strong oil displacement efficiency and obvious wetting transition from oil-wet toward water-wet. Spontaneous imbibition tests conducted on Berea rocks showed that the nanofluid yielded a high oil recovery rate of 46.61%, compared to that of 11.30, 16.58, and 22.89% for brine, pure SiNP-NH<sub>2</sub>, and pure surfactant (Soloterra 964), respectively. In addition, when core flooding was applied, a total of 60.88% of the original oil in place could be recovered and an additional oil recovery of 17.23% was achieved in the chemical flooding stage. Moreover, a possible mechanism of the EOR using the nanofluid was proposed. Overall, the developed nanofluid is a promising new material for EOR.
Homocarnosine and seizure control in juvenile myoclonic epilepsy and complex partial seizures (2001)

Low GABA levels are associated with poor seizure control in patients with CPS, but not in JME. Higher homocarnosine levels are associated with better seizure control in both types of epilepsy.
Analysis of Hexagon Shaped Ultra Wide Band Antennas (2015)

A hexagonal ultra wide antenna has been studied. First, the antenna has been fed at the base of the hexagon. Further the dimensions of the hexagon have been reduced and their effect has been studied. Next, the hexagon has been fed at one of its vertices and the effect of change in dimensions has been observed. An optimum bandwidth of 14 GHz has been obtained for both feed locations. Lastly, it has been observed that by changing the strip position along the base of the hexagon, a higher bandwidth of around 14.5 GHz has been obtained.
Synthesis and Incorporation of α-Trifluoromethyl-Substituted Amino Acids into Peptides (1996)

Methodology for synthesis and incorporation of α-trifluoromethyl substituted amino acids into N- and C-terminal position of peptides is described. The incorporation of α-trifluoromethyl substituted amino acids into peptides retards proteolytic degradation, enhances lipophilicity, and induces secondary structures. The influence of the trifluoromethyl group on the structure and the receptor affinity of different biologically active peptides (TRH, GnRH, SP) has been studied.
Synthesis of Luminescent CdTe Nanorods on Anodized Aluminum Oxide Template and Their Utility in Divalent Heavy Metal Ion Sensing (2014)

A simple one-pot hydrothermal method to grow luminescent CdTe nanorods on porous anodized aluminum oxide (AAO) template is described. These CdTe nanorods on the AAO template were further applied as an optical probe to detect divalent heavy metal ions such as Hg, Pb, Mg and Zn, by examining its photoluminescence (PL) responses. The presence of Pb and Hg ions quenched the photoluminescence (PL) of the CdTe nanorods where as Zn and Mg ions enhanced it with the effect of red shift in the peak position respectively. These PL enhancements/quenching of the nanorods after exposing to the divalent ions were explained on the basis of the active surface related recombination, which depends on the direction of carrier transfer mechanism i.e. from nanorods to the surface adsorbed metal ions or vice-versa and is attributed to the alignment of bands thus formed. The luminescent CdTe nanorods grown on AAO template was found to be effective in sensing metal ions (Pb, Hg, Zn and Mg) up to a micro-molar concentration.
Phenylalanine-427 of anthrax protective antigen functions in both pore formation and protein translocation (2008)

The protective antigen (PA) moiety of anthrax toxin forms a heptameric pore in endosomal membranes of mammalian cells and translocates the enzymatic moieties of the toxin to the cytosol of these cells. Phenylalanine-427 (F427), a solvent-exposed residue in the lumen of the pore, was identified earlier as being crucial for the transport function of PA. The seven F427 residues were shown in electrophysiological studies to form a clamp that catalyzes protein translocation through the pore. Here, we demonstrate by a variety of tests that certain F427 mutations also profoundly inhibit the conformational transition of the heptameric PA prepore to the pore and thereby block pore formation in membranes. Lysine, arginine, aspartic acid, or glycine at position 427 strongly inhibited this acidic pH-induced conformational transition, whereas histidine, serine, and threonine had virtually no effect on this step, but inhibited translocation instead. Thus, it is possible to inhibit pore formation or translocation selectively, depending on the choice of the side chain at position 427; and the net inhibition of the PA transport function by any given F427 mutation is the product of its effects on both steps. Mutations inhibiting either or both steps elicited a strong dominant-negative phenotype. These findings demonstrate the dual functions of F427 and underline its central role in transporting the enzymatic moieties of anthrax toxin across membranes.
Protein dispersibility index as an indicator of adequately processed soybean meal (2000)

Three chick assays (8 to 17 or 21 d) were conducted to evaluate protein dispersibility index (PDI) as an indicator of minimum adequate heat processing of soybean meal compared with the urease index and protein solubility in 0.2% KOH. Solvent-extracted soyflakes (SF) were subjected to various autoclaving times at 121 C and 105 kPa and were included in 23% CP dextrose-SF diets or 20% CP corn-SF-corn gluten meal diets. Autoclaving times in Chick Assays 1, 2, and 3 were 0 to 36 min, 0 to 30 min, and 0 to 12 min, respectively. Body weight gains and gain-to-feed ratios increased (P < 0.05) with increased SF heating time (0 to 18 min in Chick Assay 1, 0 to 10 min in Chick Assay 2, and 0 to 9 min in Chick Assay 3), with no additional improvement for longer autoclaving times. Urease index values (pH increase) were high initially and at the shorter autoclaving times (1.65 to 2.4), and then decreased suddenly to 0.3 or below as autoclaving time increased in two of the three chick assays. The KOH protein solubility values generally decreased as autoclaving time increased, but the responses were often inconsistent. Protein dispersibility index displayed the most consistent responses to heating time: it decreased from above 70% to generally below 30% as autoclaving time increased from 0 to 30 or 36 min (mean r2 from linear regression of PDI on autoclaving time was 0.92 for the three chick assays). The latter responses were particularly evident for the heating times, which yielded the greatest changes in chick growth performance. These results suggest that PDI is a more consistent and sensitive indicator of minimum adequate heat processing of soybean meal than urease index or protein solubility in KOH.
NOVOBIOCIN-TETRATHIONATE BROTH: A MEDIUM OF IMPROVED SELECTIVITY FOR THE ISOLATION OF SALMONELLAE FROM FAECES (1959)

Tetrathionate Broth upon Growth of Salmonellae.-A plate viable count (Miles and Misra, 1938) was made on blood agar from an overnight broth culture of Salmonella paratyphi B. Drops from the highest dilutions were seeded into bottles containing copyright.
Abstraction mechanisms in CLU (1977)

CLU is a new programming language designed to support the use of abstractions in program construction. Work in programming methodology has led to the realization that three kinds of abstractions—procedural, control, and especially data abstractions—are useful in the programming process. Of these, only the procedural abstraction is supported well by conventional languages, through the procedure or subroutine. CLU provides, in addition to procedures, novel linguistic mechanisms that support the use of data and control abstractions. This paper provides an introduction to the abstraction mechanisms in CLU. By means of programming examples, the utility of the three kinds of abstractions in program construction is illustrated, and it is shown how CLU programs may be written to use and implement abstractions. The CLU library, which permits incremental program development with complete type checking performed at compile time, is also discussed.
Islet Transplantation as a Treatment for Diabetes — A Work in Progress (2004)

Although pancreas transplantation is increasingly being performed in an effort to provide type 1 diabetic patients with the possibility of an insulin-injection–free existence, islet transplantation is potentially less invasive. This review discusses pancreatic islet-cell transplantation as an evolving procedure.
Fluorescent silver nanoclusters (2011)

Silver nanoclusters are a class of fluorophores with attractive features, including brightness, photostability and subnanometer size. In this review we overview the different scaffolds that are used as stabilizer for silver nanoclusters (e.g. polymers, dendrimers, DNA oligomers, cryogenic noble gas matrixes, inorganic glasses, zeolites and nanoparticles), and we briefly discuss the recent advances.
GENETICS OF FERTILITY RESTORATION IN THE C-GROUP OF CYTOPLASMIC MALE STERILITY IN MAIZE (1981)

The genetics of fertility restoration of cms-C group cytoplasm of maize was studied using crosses involving stable maintainer lines and lines that restored full pollen fertility. Pollen fertility in the sources of cms-C sterile cytoplasms studied was restored by a single dominant restorer (Rf4) gene. The fertility restoration was sporophytic. Allelism tests among five restorer lines showed that they all apparently carried the same alleles (Rf4 Rf4). Similar tests also demonstrated that seven nonrestoring maintainer lines had apparently the same genotype (rf4 rf4), although a partial "late break" of fertility was observed at low levels in some maintainer crosses. Comparative studies among different cms-C sources (C, Bb, ES, PR and RB) indicated that similar inheritance of fertility restoration was involved. The data indicated that a single, dominant Rf gene is involved in the restoration of several C-group cytoplasms, at least in the lines studied here. This is the first single-gene, sporophytic restorer system described in maize to date.
Rational design of therapeutic mAbs against aggregation through protein engineering and incorporation of glycosylation motifs applied to bevacizumab (2015)

The aggregation of biotherapeutics is a major hindrance to the development of successful drug candidates; however, the propensity to aggregate is often identified too late in the development phase to permit modification to the protein's sequence. Incorporating rational design for the stability of proteins in early discovery has numerous benefits. We engineered out aggregation-prone regions on the Fab domain of a therapeutic monoclonal antibody, bevacizumab, to rationally design a biobetter drug candidate. With the purpose of stabilizing bevacizumab with respect to aggregation, 2 strategies were undertaken: single point mutations of aggregation-prone residues and engineering a glycosylation site near aggregation-prone residues to mask these residues with a carbohydrate moiety. Both of these approaches lead to comparable decreases in aggregation, with an up to 4-fold reduction in monomer loss. These single mutations and the new glycosylation pattern of the Fab domain do not modify binding to the target. Biobetters with increased stability against aggregation can therefore be generated in a rational manner, by either removing or masking the aggregation-prone region or crowding out protein-protein interactions.