gebhart/patrepeval huggingface dataset:
Binding of Progesterone to Nerve Cell Membranes of Rat Brain Using Progesterone Conjugated to <sup>125</sup>I‐Bovine Serum Albumin as a Ligand (1990)

Radioiodinated bovine serum albumin conjugated to progesterone was used as a probe to examine binding parameters of steroids to membrane preparations from rat brain tissue. The binding of 11 alpha-hydroxyprogesterone-11-hemisuccinate-125I-bovine serum albumin conjugate reached saturation after 30 min of incubation at 5 degrees C. Several bovine serum albumin-conjugated steroids were then tested for competition displacement studies. Among these steroid conjugates, the bovine serum albumin conjugate at position 3 of progesterone had the highest affinity, with an estimated inhibition constant of 28.5 +/- 2.1 nM (n = 3), whereas bovine serum albumin itself and the 17 beta-estradiol 6-(O-carboxy-methyl)oxime-bovine serum albumin conjugate showed no specific displacement. In addition, the binding sites were localized in an axolemma-enriched fraction of rat brainstem. Specific binding was obtained in tissues from cerebral cortex, brainstem, cerebellum, corpus striatum, and hypothalamus, but little or no binding occurred in uterus, ovary, liver, and spleen. The present data indicate that progesterone-125I-bovine serum albumin conjugate can be used as a ligand to study progesterone-membrane receptor interactions.
Stress in Migrant Farmworkers During Premigration (2011)

MFWs experienced significant levels of stress during premigration. Their sC responses varied significantly by level of perceived farmworker stress. Lower perceived stress may reflect blunting of the sC response pattern.
Influence of filler wire addition on weld pool oscillation during gas tungsten arc welding (2004)

The present paper reports on weld penetration control based on weld pool oscillation during gas tungsten arc welding (GTAW) with cold filler wire addition (cold wire GTAW). Experiments were carried out in which the weld pool was brought into oscillation by applying short pulses on the welding current. The frequency of the weld pool oscillation was obtained from the arc voltage variation via fast Fourier transform analysis. It was found that the weld pool oscillation approach is suitable for penetration control during cold wire GTAW when the metal transfer occurs in an uninterrupted bridging manner. Interrupted bridging transfer results in a disturbed oscillation signal due to agitation of the weld pool by mass transfer and/or oscillation of the pendant droplet.
Progesterone stimulates the proliferation of female and male cholangiocytes via autocrine/paracrine mechanisms (2008)

During cholestatic liver diseases, cholangiocytes express neuroendocrine phenotypes and respond to a number of hormones and neuropeptides by paracrine and autocrine mechanisms. We examined whether the neuroendocrine hormone progesterone is produced by and targeted to cholangiocytes, thereby regulating biliary proliferation during cholestasis. Nuclear (PR-A and PR-B) and membrane (PRGMC1, PRGMC2, and mPRalpha) progesterone receptor expression was evaluated in liver sections and cholangiocytes from normal and bile duct ligation (BDL) rats, and NRC cells (normal rat cholangiocyte line). In vivo, normal rats were chronically treated with progesterone for 1 wk, or immediately after BDL, rats were treated with a neutralizing progesterone antibody for 1 wk. Cholangiocyte growth was measured by evaluating the number of bile ducts in liver sections. The expression of the progesterone synthesis pathway was evaluated in liver sections, cholangiocytes and NRC. Progesterone secretion was evaluated in supernatants from normal and BDL cholangiocytes and NRC. In vitro, NRC were stimulated with progesterone and cholangiocyte supernatants in the presence or absence of antiprogesterone antibody. Aminoglutethimide was used to block progesterone synthesis. Cholangiocytes and NRC express the PR-B nuclear receptor and PRGMC1, PRGMC2, and mPRalpha. In vivo, progesterone increased the number of bile ducts of normal rats, whereas antiprogesterone antibody inhibited cholangiocyte growth stimulated by BDL. Normal and BDL cholangiocytes expressed the biosynthetic pathway for and secrete progesterone. In vitro, 1) progesterone increased NRC proliferation; 2) cholangiocyte supernatants increased NRC proliferation, which was partially inhibited by preincubation with antiprogesterone; and 3) inhibition of progesterone steroidogenesis prevented NRC proliferation. In conclusion, progesterone may be an important autocrine/paracrine regulator of cholangiocyte proliferation.
Dengue Virus Nonstructural Protein NS5 Induces Interleukin-8 Transcription and Secretion (2005)

Elevated circulating levels of chemokines have been reported in patients with dengue fever and are proposed to contribute to the pathogenesis of dengue disease. To establish in vitro models for chemokine induction by dengue 2 virus (DEN2V), we studied a variety of human cell lines and primary cells. DEN2V infection of HepG2 and primary dendritic cells induced the production of interleukin-8 (IL-8), RANTES, MIP-1alpha, and MIP-1beta, whereas only IL-8 and RANTES were induced following dengue virus infection of HEK293 cells. Chemokine secretion was accompanied by an increase in steady-state mRNA levels. No chemokine induction was observed in HEK293 cells treated with poly(I:C) or alpha interferon, suggesting a direct effect of virus infection. To determine the mechanism(s) involved in the induction of chemokine production by DEN2V, individual dengue virus genes were cloned into plasmids and expressed in HEK293 cells. Transfection of a plasmid expressing NS5 or a dengue virus replicon induced IL-8 gene expression and secretion. RANTES expression was not induced under these conditions, however. Reporter assays showed that IL-8 induction by NS5 was principally through CAAT/enhancer binding protein, whereas DEN2V infection also induced NF-kappaB. These results indicate a role for the dengue virus NS5 protein in the induction of IL-8 by DEN2V infection. Recruitment and activation of potential target cells to sites of DEN2V replication by virus-induced chemokine production may contribute to viral replication as well as to the inflammatory components of dengue virus disease.
Experimental assessment of a combined PCE-RMA and distributed spectrum allocation mechanism for GMPLS Elastic CO-OFDM Optical Networks (2012)

We design and deploy a GMPLS control plane for elastic CO-OFDM optical networks, detailing its functional architecture combining PCE routing and modulation assignment (RMA) with distributed spectrum allocation, the protocol extensions and the experimental validation.
Activation of natural killer cells via the p75 interleukin 2 receptor. (1989)

The IL-2R is composed of at least two subunits, the p55 (CD25/Tac) and p75 glycoproteins. The p75 IL-2R is expressed preferentially on resting human peripheral blood NK cells, but is not detected on substantial proportions of T and B lymphocytes, monocytes, or granulocytes. Anti-p75 IL-2R mAb substantially inhibits the early events associated with NK cell activation by IL-2, including inhibition of cytotoxic activity and induction of the CD69 early activation antigen. While anti-p55 IL-2R mAb alone failed to substantially inhibit the initial events of IL-2 stimulation, maximal inhibition of IL-2-induced cytotoxicity and proliferation was achieved by combining both anti-p55 IL-2R and anti-p75 IL-2R. Collectively, results from the present studies directly implicate the p75 IL-2R as the structure predominantly responsible for IL-2 activation of NK cells.
A PCM Voice Codec with On-Chip Filters (1979)

A monolithic NMOS coder/decoder (codec) with associated CCD transversal minimum-phase filters has been successfully implemented. The codec operates by charge redistribution in a binaryweighted capacitor array, with a resistor chain to define individual steps. The experimental performance compares well with PCM codecs implemented with discrete components.
On the optimization of QOS in ATM networks (1998)

Article On the optimization of QOS in ATM networks Share on Authors: Eltayeb Abuelyaman Department of Computer and Information Sciences, University of Arkansas, Little Rock, AR Department of Computer and Information Sciences, University of Arkansas, Little Rock, ARView Profile , Anup Kuzhiyil Department of Electrical and Computer Engineering, The University of Arizona, Tucson, AZ Department of Electrical and Computer Engineering, The University of Arizona, Tucson, AZView Profile , Karam Mossaad Department of Computer and Information Sciences, University of Arkansas, Little Rock, AR Department of Computer and Information Sciences, University of Arkansas, Little Rock, ARView Profile Authors Info & Claims ACM-SE 36: Proceedings of the 36th annual Southeast regional conferenceApril 1998 Pages 111–120https://doi.org/10.1145/275295.275314Online:01 April 1998Publication History 1citation243DownloadsMetricsTotal Citations1Total Downloads243Last 12 Months1Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
Signature verification using shape descriptors and multiple neural networks (2002)

This paper presents an off-line signature verification system. The verification is based on signature shape descriptors such as the skeleton, upper and lower envelopes, and the high pressure region of the signatures. Multiple multilayer perceptron neural network modules cooperating in taking a verification decision via a fuzzy integral voter are used. This method is capable of verifying simple and skilled forgeries with a good performance.
Abrogation of transforming growth factor-alpha/epidermal growth factor receptor autocrine signaling by an RXR-selective retinoid (LGD1069, Targretin) in head and neck cancer cell lines. (2001)

Clinical studies have demonstrated that retinoids, including retinol (Vitamin A) and its synthetic derivatives, can eradicate leukoplakia and suppress the formation of squamous cell carcinoma of the head and neck (SCCHN). Nonselective retinoids have been shown to abrogate transcriptional activation of transforming growth factor-alpha (TGF-alpha) and epidermal growth factor receptor (EGFR), which characterize SCCHN. LGD1069 (Targretin) is a potent RXR-selective retinoic acid agonist with a reduced toxicity profile compared with other nonselective retinoids. We examined the effect of LGD1069 (10 microm) on cellular proliferation and expression of putative intermediate biomarker genes including TGF-alpha, EGFR, and RAR-beta in seven SCCHN cell lines. A quantitative reverse transcription-PCR assay using a novel "primer dropping" method was used to determine expression levels of EGFR, TGF-alpha, and RAR-beta before and after treatment with LGD1069 (10 microM). SCCHN proliferation was reduced by a mean of 50% at 4 days in seven SCCHN cell lines after LGD1069 treatment (P < or = 0.05). EGFR expression levels were decreased by a mean of 58.4% (P = 0.007), TGF-alpha levels were decreased by a mean of 28.8% (P = 0.01), and RAR-beta levels were increased by a mean of 60% (P = 0.03). TGF-alpha stimulation of EGFR is associated with constitutive signal transducer and activator of transcription 3 (Stat3) activation in SCCHN. Abrogation of constitutive Stat3 activation was seen with LGD1069 treatment. These results suggest that an RXR-selective retinoic acid decreases SCCHN proliferation in part by interfering with TGF-alpha/EGFR autocrine signaling.
Long-range hot-carrier transport in hybrid perovskites visualized by ultrafast microscopy (2017)

The Shockley-Queisser limit for solar cell efficiency can be overcome if hot carriers can be harvested before they thermalize. Recently, carrier cooling time up to 100 picoseconds was observed in hybrid perovskites, but it is unclear whether these long-lived hot carriers can migrate long distance for efficient collection. We report direct visualization of hot-carrier migration in methylammonium lead iodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) thin films by ultrafast transient absorption microscopy, demonstrating three distinct transport regimes. Quasiballistic transport was observed to correlate with excess kinetic energy, resulting in up to 230 nanometers transport distance that could overcome grain boundaries. The nonequilibrium transport persisted over tens of picoseconds and ~600 nanometers before reaching the diffusive transport limit. These results suggest potential applications of hot-carrier devices based on hybrid perovskites.
A thermal information display for mobile applications (2007)

In this paper, we investigate possibilities and limitations of temperature change as a method for information display in mobile applications. While some widespread and well-recognized haptic displays such as force-feedback often trigger the user's immediate attention, we will focus on ambient strategies for tactile information display, that is, the display of gradual state changes in the user's periphery that do not unexpectedly interrupt her current tasks, but builds on the mind's ability for subliminal perception of environmental change instead [1, 2].
[The relationship of apolipoprotein A-I and B-100 to cardiovascular diseases in aging males]. (1995)

Apolipoprotein (apo) A-I and apo B-100 were examined in 378 aging males for studying the relationship of apolipoprotein to cardiovascular diseases. The results showed that apo A-I and apo B-100 were 148 +/- 30 mg/dl, 97.3 +/- 28 mg/dl in the healthy aged subjects. Patients with CHD had the higher level of apo B-100 (P < 0.01) than the controls. Apolipoprotein A-I was decreased (P < 0.05), but apo B-100 was increased (P < 0.01) in the patients with hypertension which indicated that the change of apolipoprotein could be a factor for patients with hypertension and sensitive to CHD. There were a positive correlation between apo B-100 and apo A-I cholesterol contents (r = 0.22, P < 0.05) as well as a negative correlation between apo A-I and fibrinogen (r = -0.2, P < 0.05) contents. Our data suggested that a higher content of apo A-I and lower content of apo B-100 might serve as the protective factors for CHD.
Low-dose CT of the lungs: preliminary observations. (1990)

The potential of low-dose computed tomography (CT) of the lungs was critically evaluated in two patients with normal-appearing lungs and 10 patients with a wide diversity of underlying parenchymal abnormalities. At each of five levels, in addition to routine scans obtained at 120 kVp and 140 mA, a scan at 10 mA and a half scan at 10 mA were obtained, with all other parameters held constant. Each scan was evaluated visually to assess anatomic clarity as well as the presence of artifacts and the extent of graininess. At all levels of the thorax, visualization of parenchymal structures was not affected by decreasing the milliamperage. It appears that high-quality, diagnostic images of the lung can be obtained with a very low radiation dose. Although further evaluation is necessary, the potential of low-dose CT for use in the pediatric population in particular, as well as for screening in patients at high risk for developing lung cancer, is apparent.
Human daily behavior accumulation in real home environment via distributed sensors in a long term (2011)

This paper reports the case study about long-term sensor data accumulation of natural human behavior in a real home environment. Human behavior measurement in long term and in the real environment is difficult because of devices, software and system problems. We rented an apartment and introduced 4 sensor modules (pyroelectric sensor module, proximity sensor module, electric current sensor module and LRF module) into the rooms. The systems for data collection from modules, database system for long-term accumulation and sensor data visualization software for behavior annotation are also developed. We measured the sensor data during 4 years continuously. This data will assist to develop methods for typical behavior extraction, behavior recognition and anomaly behavior detection.
Measurement of sound power and absorption in reverberation chambers using energy density (2007)

Reverberation chamber measurements typically rely upon spatially averaged squared pressure for the calculation of sound absorption, sound power, and other acoustic values. While a reverberation chamber can provide an approximately diffuse sound field, variations in sound pressure consistently produce uncertainty in measurement results. This paper explores the benefits of using total energy density or squared particle velocity magnitude (kinetic energy density) instead of squared pressure (potential energy density) for sound absorption and sound power measurements. The approaches are based on methods outlined in current ISO standards. The standards require a sufficient number of source-receiver locations to obtain suitable measurement results. The total and kinetic energy densities exhibit greater spatial uniformity at most frequencies than potential energy density, thus requiring fewer source-receiver positions to produce effective results. Because the total energy density is typically the most uniform of the three quantities at low frequencies, its use could also impact the usable low-frequency ranges of reverberation chambers. In order to employ total and kinetic energy densities for sound absorption measurements, relevant energy-based impulse responses were developed as part of the work for the assessment of sound field decays.
Separation of acetylated inulin by reversed-phase high performance liquid chromatography. (1985)

Inulin oligomers were successfully separated by reversed-phase high performance liquid chromatography combined with a pre-acetylation procedure.
Calendar of Early Mayor's Court Rolls preserved among the Archives of the Corporation of the City of London at the Guildhall, A.D., 1298–1307 (1924)

Journal Article Calendar of Early Mayor's Court Rolls preserved among the Archives of the Corporation of the City of London at the Guildhall, A.D., 1298–1307 Get access Notes and Queries, Volume CXLVII, Issue nov22, 22 November 1924, Pages 381–382, https://doi.org/10.1093/nq/CXLVII.nov22.381d Published: 22 November 1924
Biosynthesis of fatty acids and triacylglycerols by 2,6,10,14-tetramethyl pentadecane-grown cells of<i>Nocardia globerula</i>432 (2001)

Nocardia globerula strain 432 was able to synthesize triacylglycerols (TAG) during cultivation on 2,6,10,14-tetramethyl pentadecane (pristane) under nitrogen-limiting conditions. Within these cells, 4,8,12-trimethyl tridecanoic acid was the major fatty acid detected. Fatty acids with an odd number of carbon atoms and minor amounts of even-numbered fatty acids were also observed. Experiments carried out with acrylic acid, an inhibitor of beta-oxidation, suggested that odd-numbered fatty acids such as C15:0, C17:0 and 10-methyl C17:0 were synthesized de novo using propionyl-CoA, the beta-oxidation product, as precursor. Although N. globerula 432 incorporated mainly straight chain fatty acids into TAG, the branched fatty acid 4,8,12-trimethyl tridecanoic acid also appeared, to some extent, in the acylglycerols. The importance of TAG biosynthesis by pristane-grown cells of N. globerula strain 432 is discussed.
Mathematical models for assessing the role of airflow on the risk of airborne infection in hospital wards (2009)

Understanding the risk of airborne transmission can provide important information for designing safe healthcare environments with an appropriate level of environmental control for mitigating risks. The most common approach for assessing risk is to use the Wells-Riley equation to relate infectious cases to human and environmental parameters. While it is a simple model that can yield valuable information, the model used as in its original presentation has a number of limitations. This paper reviews recent developments addressing some of the limitations including coupling with epidemic models to evaluate the wider impact of control measures on disease progression, linking with zonal ventilation or computational fluid dynamics simulations to deal with imperfect mixing in real environments and recent work on dose-response modelling to simulate the interaction between pathogens and the host. A stochastic version of the Wells-Riley model is presented that allows consideration of the effects of small populations relevant in healthcare settings and it is demonstrated how this can be linked to a simple zonal ventilation model to simulate the influence of proximity to an infector. The results show how neglecting the stochastic effects present in a real situation could underestimate the risk by 15 per cent or more and that the number and rate of new infections between connected spaces is strongly dependent on the airflow. Results also indicate the potential danger of using fully mixed models for future risk assessments, with quanta values derived from such cases less than half the actual source value.
A penicillin-binding protein inhibits selection of colistin-resistant, lipooligosaccharide-deficient <i>Acinetobacter baumannii</i> (2016)

The Gram-negative bacterial outer membrane fortifies the cell against environmental toxins including antibiotics. Unique glycolipids called lipopolysaccharide/lipooligosaccharide (LPS/LOS) are enriched in the cell-surface monolayer of the outer membrane and promote antimicrobial resistance. Colistin, which targets the lipid A domain of LPS/LOS to lyse the cell, is the last-line treatment for multidrug-resistant Gram-negative infections. Lipid A is essential for the survival of most Gram-negative bacteria, but colistin-resistant Acinetobacter baumannii lacking lipid A were isolated after colistin exposure. Previously, strain ATCC 19606 was the only A. baumannii strain demonstrated to subsist without lipid A. Here, we show that other A. baumannii strains can also survive without lipid A, but some cannot, affording a unique model to study endotoxin essentiality. We assessed the capacity of 15 clinical A. baumannii isolates including 9 recent clinical isolates to develop colistin resistance through inactivation of the lipid A biosynthetic pathway, the products of which assemble the LOS precursor. Our investigation determined that expression of the well-conserved penicillin-binding protein (PBP) 1A, prevented LOS-deficient colony isolation. The glycosyltransferase activity of PBP1A, which aids in the polymerization of the peptidoglycan cell wall, was lethal to LOS-deficient A. baumannii Global transcriptomic analysis of a PBP1A-deficient mutant and four LOS-deficient A. baumannii strains showed a concomitant increase in transcription of lipoproteins and their transporters. Examination of the LOS-deficient A. baumannii cell surface demonstrated that specific lipoproteins were overexpressed and decorated the cell surface, potentially compensating for LOS removal. This work expands our knowledge of lipid A essentiality and elucidates a drug resistance mechanism.