gebhart/patrepeval huggingface dataset:
Spin-lattice relaxation and viscosity in mixtures of n-hexane and n-hexadecane (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpin-lattice relaxation and viscosity in mixtures of n-hexane and n-hexadecaneJames A. Zega, Waylon V. House, and Riki KobayashiCite this: Ind. Eng. Chem. Res. 1990, 29, 5, 909–912Publication Date (Print):May 1, 1990Publication History Published online1 May 2002Published inissue 1 May 1990https://pubs.acs.org/doi/10.1021/ie00101a029https://doi.org/10.1021/ie00101a029research-articleACS PublicationsRequest reuse permissionsArticle Views116Altmetric-Citations6LEARN 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
Purification and Characterization of an Immunomodulatory Endometrial Protein, Glycodelin (2001)

Human glycodelin is synthesized by endometrial cells in the late secretory phase and early pregnancy under hormonal regulation. Whereas the precise physiological functions of glycodelin are unknown, its expression during embryonic nidation and its inhibition of T cell proliferation suggest an immunomodulatory role. We purified human glycodelin from first trimester human decidual cytosol by using a rapid two-step high-performance liquid chromatography method and investigated its effects on human monocyte migration. Human U937 cells were used as a model of monocyte chemotaxis in Boyden chamber migration assays. N-Formyl-Met-Leu-Phe and the beta-chemokine RANTES (regulated on activation normal T cell expressed and secreted) were used as monocyte chemoattractants. Purified glycodelin inhibited monocyte migration in a dose-dependent fashion (IC50 = 550 nm). Glycodelin activity was totally reversed by heat inactivation (95 degrees C x 15 min) and neutralized by pretreatment with specific anti-glycodelin antibodies. Deglycosylated glycodelin was equipotent to intact glycodelin in the monocyte migration assay. 125I-Glycodelin binding to whole U937 cells revealed a single, saturable site with a Kd = 48 +/- 21 nm by Scatchard analysis. Cross-linking studies indicated that glycodelin binds to a high molecular mass (approximately 250 kDa) protein complex at the monocyte cell surface. Our findings support the hypothesis that glycodelin reduces the local maternal inflammatory response toward the implantation of a semiallogeneic conceptus.
The Effect of Zinc Oxide Particle Size and Shape on Adhesion of Rubber to Brass-Coated Steel Radial Tire Cord (1978)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation G. T. Carpenter; The Effect of Zinc Oxide Particle Size and Shape on Adhesion of Rubber to Brass-Coated Steel Radial Tire Cord. Rubber Chemistry and Technology 1 September 1978; 51 (4): 788–798. doi: https://doi.org/10.5254/1.3535764 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest Search
Cu-Based Metal–Organic Frameworks for Photovoltaic Application (2013)

In the present study, a thin layer of Cu-based metal–organic frameworks (MOFs, copper(II) benzene-1,3,5-tricarboxylate) is fabricated using a layer-by-layer technique, and the layer is investigated as a light-absorbing layer in TiO2-based solar cells. Iodine doping of the MOFs is performed to improve the conductivity and charge-transfer reaction across the TiO2/MOF/electrolyte interface. The HOMO and LUMO energy states of the MOF films are estimated to be −5.37 and −3.82 eV (vs vacuum), respectively, which show a well-matched energy cascade with TiO2. For the first time, a TiO2-based solar cell is fabricated successfully using iodine-doped Cu-MOFs as an active layer, demonstrating a cell performance with Jsc = 1.25 mA cm–2 and Eff = 0.26% under illumination of 1 sun radiation. In contrast, the cell with an undoped MOF layer exhibited Jsc = 0.05 mA cm–2 and Eff = 0.008%. Electrochemical impedance spectroscopy of the cells suggests that iodine doping significantly reduces the charge-transfer resistance.
Android digital forensics (2017)

Smartphones are exceedingly popular, with the Android platform being no exception. Also, the surge of applications available for such devices has revolutionized our lives, many of which process a significant amount of personal information. Instant Messaging applications are an excellent example of this. In addition to processing this information, there is a high likelihood that they store traces of it in local storage.
Airway inflammation in children with tracheostomy (2004)

We hypothesised that long-term tracheostomy in infants and children may perpetuate chronic airway inflammation and airway remodeling due to easier access to the lungs for microorganisms. Pulmonary surfactant represents an important part of the initial host defense, and in particular, the surfactant proteins (SP) A and D may directly interact with invading microorganisms and also modulate the activity of local immune cells. The goals of this study were to determine the presence and intensity of a peripheral airway inflammation and of potential deficiency states of surfactant proteins in nonsymptomatic children with tracheostomy. Bronchoalveolar lavage (BAL) cell pattern, bacteria and viruses recovered, and concentrations of SP-A, SP-B, SP-C, and SP-D were assessed in 46 children (4.3 years (1.6-6)) median (range) carrying a tracheostomy for 2.4 years (1.3-4.9), and were compared to 16 children with no lung disease. Children with tracheostomy had an increased total number of cells, increased neutrophils, and more frequently bacteria, but no viruses were recovered. SP-D concentration was reduced by 50% on average (P = 0.0002). SP-A, SP-B, and SP-C were not different between the two groups. SP-D was inversely correlated to neutrophils, and high numbers of bacteria were associated with lower SP-D concentrations. We suggest that bacteria and low SP-D support neutrophilic inflammation in the lower respiratory tract of nonsymptomatic with children with tracheostomy.
Microbial Contamination of In-use Lubricants for Non-touch Urethral Cathpeters in Intermittent Self- catheterization. (2000)

There are no reports on microbial contamination of repeatedly used lubricant (84-87% glycerin containing 0.02% benzalkonium chloride) for non-touch urethral catheters in intermittent self-catheterization. In this work, we evaluated microbial contamination of in-use lubricant and its prevention. Between September and December, 1996, microbial contamination and water activity of in-use lubricants in sheathed and lubricated non-touch catheters connected to a tube used by 46 outpatients at our hospital was examined. Microbial contamination was detected at 5 to 2.6 x 10(8) colony-forming units (CFU)/ml in 14 (30.4%) of 46 samples. With higher water activity of the lubricant (a higher dilution rate of the lubricant with water), a higher concentration of microbial contamination was observed. In 3 (21.4%) of the 14 patients using contaminated lubricant, urine samples showed the same microbial species as those detected in the lubricant. To prevent microbial contamination of the lubricant, dilution of the lubricant with water, as a result of repeated use, should be avoided.
Electrolyte effects on the hydrolysis of acetals and ortho esters (1970)

ADVERTISEMENT RETURN TO ISSUEArticleNEXTElectrolyte effects on the hydrolysis of acetals and ortho estersClifford A. Bunton and J. D. ReinheimerCite this: J. Phys. Chem. 1970, 74, 26, 4457–4464Publication Date (Print):December 1, 1970Publication History Published online1 May 2002Published inissue 1 December 1970https://doi.org/10.1021/j100720a001RIGHTS & PERMISSIONSArticle Views102Altmetric-Citations6LEARN 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 (914 KB) Get e-Alerts
Digital signal processing for an adaptive phase-locked loop controller (2008)

Many piezoelectric systems are operated in resonance, requiring some sort of control. Especially weakly damped systems need a control algorithm to hold the system in resonance. There are many factors, which can change the system's resonant frequency during operation. The two most important factors are load effects and temperature effects. A common algorithm to drive a piezoelectric system in its eigenfrequency is the PLL (phase-locked-loop) controller - well known from communication technologies - including some adaptive variantions of the PLL. Beside a brief introduction into the APLL (adaptive PLL, this paper concentrates on one of the main components of the (A)PLL, the phase detector. It investigates and compares different types of phase detectors with a focus on the implantation on a digital control system.
Cellular growth state differentially regulates enterocyte gene expression in butyrate-treated HT-29 cells. (1996)

Enterocyte differentiation occurs at the crypt-villus junction through the transcriptional activation of cell-specific genes, including the brush-border enzyme intestinal alkaline phosphatase (IAP) and the microvillar structural protein, villin. Based upon previous in vivo studies demonstrating that IAP and villin are differentially affected by alterations in epithelial growth state, we examined the regulation of these two genes in an in vitro model of enterocyte differentiation. HT-29 cells were maintained in DMEM + 10% FCS and treated with sodium butyrate to induce enterocyte differentiation. Cell count and [3H]thymidine measurements confirm that sodium butyrate causes a marked decrease in cellular growth state, consistent with the differentiation process. Northern blot analyses revealed time- and dose-dependent increases (P < 0.001) in steady-state IAP and villin mRNA levels. The increases in both IAP and villin expression were dependent upon the presence of one or more newly synthesized proteins. Post-confluence and serum starvation were used to cause cell cycle withdrawal prior to the differentiation process. As predicted from our previous in vivo data, villin expression was unaffected by changes in cellular growth state, whereas IAP expression was dramatically diminished under hypoproliferative conditions. We conclude that early withdrawal from the cell cycle alters the course of enterocyte differentiation, specifically decreasing IAP expression.
Collection « Sous la main de Dieu ». Paris, Éditions Fleurus. In-12°. Tome 3 : René Beaupère, O.P., Donne-nous un roi, 1961. Tome 4/1 et 2 : Charles Augrain, P.S.S., Paul, maître de vie spirituelle, 1962 (1962)

Peter Rodolphe. Collection « Sous la main de Dieu ». Paris, Éditions Fleurus. In-12°. Tome 3 : René Beaupère, O.P., Donne-nous un roi, 1961. Tome 4/1 et 2 : Charles Augrain, P.S.S., Paul, maître de vie spirituelle, 1962. In: Revue d'histoire et de philosophie religieuses, 42e année n°2-3,1962. p. 264.
<i>p</i>-(Benzyloxy)calix[8]arene:  One-Pot Synthesis and Functionalization (1997)

The condensation of hydroquinone monobenzyl ether in the presence of several bases gives a mixture of cyclic oligomers. Using p-benzyloxyphenol, paraformaldehyde, and NaOH in 45:82:1 molar ratio in refluxing xylene, p-(benzyloxy)calix[8]arene (2) was selectively produced in 48% isolated yield. Compound 2 was also functionalized at the lower rim with acetoxy, methyl, pentyl, [(ethyloxy)carbonyl]methyl, and [(N,N-diethylamino)carbonyl]methyl groups. Replacement of the benzyl groups on these compounds allowed for the first time the high-yield syntheses of calix[8]hydroquinone and its derivatives.
Magnetoelectric Effect in Piezoelectric/Magnetostrictive Multilayer (2-2) Composites (1994)

We consider the magnetoelectric effect arising in a multilayer composite consisting of bonded layers of a piezoelectric ceramic and a magnetostrictive material operating in the linear regime. Magnetoelectric coupling arises from the mechanical contacts between layers and the elec tric/mechanical and magnetic/mechanical coupling in each phase. Calculations of the magnetoelec tric coefficient α* as well as of the figures of merit k me and k me,cl are presented. These calculations fully take into account the electric, magnetic and mechanical mismatch in the material properties, as well as the volume-fractions of both materials. We derive the optimal volume fraction f crit 1 of piezoelectric material needed to maximize the figure of merit k fme or k me,cl for the composite and give criteria for optimizing the magnetoelectric effect in terms of the choice of the individual constit uents. We computed the figures of merit of a variety of piezoelectric/magnetostrictive combinations. The combinations CoFe 2 O 4 /PZT5H ( k me = 14%), Terfenol D/PZT5A ( k me = 22%) and Terfenol D/PZT4 ( k me = 30%) show reasonable energy transfer to be useful as magnetoelectric transducers.
Excitation Spectra of the Visible Photoluminescence of Anodized Porous Silicon (1992)

Porous silicon samples, photoluminous in orange, pink or greenish yellow, were formed by anodization. The shapes and wavelength positions of their photoluminescence peaks were not influenced by the excitation wavelength. The photoluminescence intensity at any wavelength between 520 nm and 800 nm varied as a function of the excitation wavelength in accordance with the imaginary part of the spectral refractive index of bulk silicon. Thus, the excitation process responsible for the visible photoluminescence of porous silicon seems to be bulk-silicon-like.
A Case Study of Research through the App Store (2014)

With a growing number of mobile applications available on application stores and the improved capabilities of smartphones, people download more applications to their devices. Researchers began to leverage this momentum for distributing applications to conduct studies on end-users' devices. This paper grounds the approach of research through the application store in the theory of quasi-experimental design. Further, with people having more applications installed, finding applications quickly when they need them can become a time-consuming issue that impacts user experience. This paper presents our approach to improve future design of smartphone launcher menus. The authors present our approach of combining research through the app store with the idea of studying people's smartphones as the apparatus themselves. Therefore the authors designed a game that takes advantage of the user's smartphone itself as a field of play. By timing a simple visual search task for an icon, the authors aim to deduce how well a user knows where he can find his applications, and thus how well he can build a mental model of his smartphone launcher menu. The authors introduce our approach, present the game rappidly that serves as a vehicle of our research question, and discuss open challenges and future work.
Sodium dichloroacetate selectively targets cells with defects in the mitochondrial ETC (2010)

The "Warburg effect," also termed aerobic glycolysis, describes the increased reliance of cancer cells on glycolysis for ATP production, even in the presence of oxygen. Consequently, there is continued interest in inhibitors of glycolysis as cancer therapeutics. One example is dichloroacetate (DCA), a pyruvate mimetic that stimulates oxidative phosphorylation through inhibition of pyruvate dehydrogenase kinase. In this study, the mechanistic basis for DCA anti-cancer activity was re-evaluated in vitro using biochemical, cellular and proteomic approaches. Results demonstrated that DCA is relatively inactive (IC(50) ≥ 17 mM, 48 hr), induces apoptosis only at high concentrations (≥ 25 mM, 48 hr) and is not cancer cell selective. Subsequent 2D-PAGE proteomic analysis confirmed DCA-induced growth suppression without apoptosis induction. Furthermore, DCA depolarizes mitochondria and promotes reactive oxygen species (ROS) generation in all cell types. However, DCA was found to have selective activity against rho(0) cells [mitochondrial DNA (mtDNA) deficient] and to synergize with 2-deoxyglucose in complex IV deficient HCT116 p53(-/-) cells. DCA also synergized in vitro with cisplatin and topotecan, two antineoplastic agents known to damage mitochondrial DNA. These data suggest that in cells "hardwired" to selectively utilize glycolysis for ATP generation (e.g., through mtDNA mutations), the ability of DCA to force oxidative phosphorylation confers selective toxicity. In conclusion, although we provide a mechanism distinct from that reported previously, the ability of DCA to target cell lines with defects in the electron transport chain and to synergize with existing chemotherapeutics supports further preclinical development.
Approaches to online learning and concept drift for user identification in computer security (1998)

The task in the computer security domain of anomaly detection is to characterize the behaviors of a computer user (the valid&apos;, or normal&apos; user) so that unusual occurrences can be detected by comparison of the current input stream to the valid user&apos;s profile. This task requires an online learning system that can respond to concept drift and handle discrete non-metric time sequence data. We present an architecture for online learning in the anomaly detection domain and address the issues of incremental updating of system parameters and instance selection. We demonstrate a method for measuring direction and magnitude of concept drift in the classification space and present and evaluate approaches to the above stated issues which make use of the drift measurement. Introduction In this paper we examine methods for learning to classify temporal sequences of nominal data as similar to or different from previously observed sequence data when the underlying concept is subject to drift. This pr...
The calux (chemical-activated luciferase expression) assay adapted and validated for measuring TCDD equivalents in blood plasma (1997)

Abstract A method was developed to isolate lipophilic compounds efficiently from small aliquots of blood plasma and test these for total dioxin-like toxic potency using recombinant rat (H4IIE) and mouse (Hepa1c1c7) hepatoma cell lines, containing the firefly (Photinus pyralis) luciferase gene under trans-activational control of the aryl hydrocarbon receptor (AhR). For this experiment, blood plasma was used originating from eider ducks (Somateria mollissima) that had been dosed with 3,3′,4,4′-tetrachlorobiphenyl (PCB-77) or with the technical PCB-mixture Clophen A50. For each sample the CALUX (chemical-activated luciferase expression) response of both the fat-containing organic extract and the fat-free, cleaned extract were compared with data from chemical analyses of these samples. The CALUX responses for the extracts were converted into so-called CALUX TEQs (TCDD equivalents), using a 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) standard curve. The CALUX TEQs in both fatty and cleaned extracts correlated significantly with PCB-77 or PCB-153 levels (depending on the dosage group) determined in blood plasma using gas chromatography–mass spectrometry (GC-MS). For PCB-77 a toxic equivalency factor (TEF) of 1.5 × 10−3 was calculated based on these correlations. In addition, PCB-118 and PCB-156 levels in abdominal fat (assessed with GC with electron capture detection) and hepatic ethoxyresorufin O-deethylase activities correlated well with the CALUX TEQs in both fatty and cleaned blood plasma extracts, suggesting the TEQ levels in blood offer a good measure for internal dose. Plasma cholesterol and triglyceride levels were determined as a measure of lipid content, in 10-μl aliquots of blood plasma using enzymatic spectrophotometric determination. In conclusion, we have demonstrated that the CALUX assay is a rapid, sensitive assay for assessing the toxic potency of (mixtures of) AhR-active compounds in small aliquots of blood plasma. The limit of detection for the CALUX assay is currently less than 0.1 fmol (32 fg) TEQ, which corresponds with the amount of TEQs present in 0.1 to 1 ml of blood plasma in environmentally exposed species or man.