gebhart/patrepeval huggingface dataset:
Visitors' use of interpretive media at heritage sites (1995)

Although heritage interpretation is a central component of the modern heritage industry there has been relatively little concern with how visitors to heritage sites make use of interpretive media. This paper reports a study of visitors' use of three interpretive media — exhibitions, outdoor panels, and stereo-audio tours — commonly employed at one type of heritage site, namely ancient monuments. Interpretation is an important component of the visit for many people, although visitors differ in the interest and attention they display to the interpretive media. This is greatest for audio media and less for visual media. This was attributed both to qualities of the interpretive media themselves (e.g. subject matter, readability), and also to characteristics of visitors, particularly their motive for visiting. This supports the notion that the ‘effectiveness’ of interpretation is the result of an interaction between visitor and interpretive medium, rather than depending solely on the interpretive medium.
User support to Guoshoujing Telescope (LAMOST) (2012)

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST, i. e. Guoshoujing Telescope) has started its pilot survey since October 2011. To support user activities and promote effective use of LAMOST data (network services), 'User Supporting' enables users to easily obtain current information, which will be integrated with as many information resources and communication media as possible. In detail we take care of the solution of users' problems related to LAMOST data, the consulting and administration of users in all questions related to LAMOST data, and users' immediate response. According to users' feedback, new requirement for LAMOST data reduction pipeline will be suggested. As the diversity and characteristic of LAMOST spectral data, our service tends to be special customized service.
High-gain and high-bandwidth rail-to-rail operational amplifier with slew rate boost circuit (2006)

In this work, a high gain and high bandwidth rail-to-rail operational amplifier with slew rate boost circuit is presented. The constant gm is enhanced through a source-to-bulk bias control of an input pair. A source degeneration scheme is applied to realize an input common-mode range insensitive output stage. Several compensation schemes are applied to maintain the stability. A slew rate boost circuit can improve the output slewing. The op amp performs 100-dB dc gain, 100-MHz bandwidth and 22.5-V/us slew rate at 15-pF output load. The layout area is 593/spl times/519 /spl mu/m/sup 2/ in a 0.18-/spl mu/m CMOS process. It consumes 3.2-mW at 1.8V supply voltage.
Changes in corneal morphology associated with chronic epithelial injury. (1999)

Chronic epithelial injury induces stromal thinning and epithelial hyperplasia. These changes in cornea structure associated with chronic epithelial injury may have relevance to the pathophysiology of keratoconus.
Nature of the transition structure for oxygen atom transfer from a hydroperoxide. Theoretical comparison between water oxide and ammonia oxide (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNature of the transition structure for oxygen atom transfer from a hydroperoxide. Theoretical comparison between water oxide and ammonia oxideRobert D. Bach, Amy L. Owensby, Carlos Gonzalez, H. Bernhard Schlegel, and Joseph J. W. McDouallCite this: J. Am. Chem. Soc. 1991, 113, 16, 6001–6011Publication Date (Print):July 1, 1991Publication History Published online1 May 2002Published inissue 1 July 1991https://doi.org/10.1021/ja00016a012RIGHTS & PERMISSIONSArticle Views254Altmetric-Citations59LEARN 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 (2 MB) Get e-Alertsclose Get e-Alerts
Inhibitory effect of a tyrosine-fructose Maillard reaction product, 2,4-bis(p-hydroxyphenyl)-2-butenal on amyloid-β generation and inflammatory reactions via inhibition of NF-κB and STAT3 activation in cultured astrocytes and microglial BV-2 cells (2011)

These results indicate that 2,4-bis(p-hydroxyphenyl)-2-butenal inhibits neuroinflammatory reactions and amyloidogenesis through inhibition of NF-κB and STAT3 activation, and suggest that 2,4-bis(p-hydroxyphenyl)-2-butenal may be useful for the treatment of neuroinflammatory diseases like Alzheimer's disease.
Endogenous biosynthesis of thromboxane and prostacyclin in 2 distinct murine models of atherosclerosis (2000)

Thromboxane A2 is a potent vasoconstrictor and platelet agonist; prostacyclin is a potent platelet inhibitor and vasodilator. Altered biosynthesis of these eicosanoids is a feature of human hypercholesterolemia and atherosclerosis. This study examined whether in 2 murine models of atherosclerosis their levels are increased and correlated with the evolution of the disease. Urinary 2,3-dinor thromboxane B2 and 2,3-dinor-6-keto prostaglandin F1α, metabolites of thromboxane and prostacyclin, respectively, were assayed in apoliprotein E (apoE)-deficient mice on chow and low-density lipoprotein receptor (LDLR)-deficient mice on chow and a Western-type diet. Atherosclerosis lesion area was measured by en face method. Both eicosanoids increased in apoE-deficient mice on chow and in LDLR-deficient mice on a high-fat diet, but not in LDLR-deficient mice on chow by the end of the study. Aspirin suppressed ex vivo platelet aggregation, serum thromboxane B2, and 2,3-dinor thromboxane B2, and significantly reduced the excretion of 2,3-dinor-6-keto prostaglandin F1α in these animals. This study demonstrates that thromboxane as well as prostacyclin biosynthesis is increased in 2 murine models of atherogenesis and is secondary to increased in vivo platelet activation. Assessment of their generation in these models may afford the basis for future studies on the functional role of these eicosanoids in the evolution and progression of atherosclerosis.
Chemoattractant-stimulated polymorphonuclear leukocytes contain two populations of actin filaments that differ in their spatial distributions and relative stabilities. (1990)

Chemoattractants stimulate actin polymerization in lamellipodia of polymorphonuclear leukocytes. We find that removal of chemoattractant results in rapid (within 10 s at 37 degrees C) and selective depolymerization of the F-actin located in lamellipodia. Addition of 10 microM cytochalasin B, in the presence of chemoattractant, also resulted in rapid and selective depolymerization of lamellar F-actin. The elevated F-actin level induced by chemoattractant rapidly returns to the level present in unstimulated cells after (a) a 10-fold decrease in chemoattractant concentration; (b) the addition of 10 microM cytochalasin B; or (c) cooling to 4 degrees C. The F-actin levels of unstimulated cells are only slightly affected by these treatments. Based on the similar effects of cytochalasin addition and chemoattractant dilution, it is likely that both treatments result in actin depolymerization from the pointed ends of filaments. Based on our results we propose that chemoattractant-stimulated polymorphonuclear leukocytes contain two distinct populations of actin filaments. The actin filaments within the lamellipodia are highly labile and in the continued presence of chemoattractant these filaments are rapidly turning over, continually polymerizing at their plus (barbed) ends, and depolymerizing at their minus ends. In contrast, the cortical F-actin filaments of both stimulated and unstimulated cells are differentially stable.
Personalization of Cardiac Motion and Contractility From Images Using Variational Data Assimilation (2011)

Personalization is a key aspect of biophysical models in order to impact clinical practice. In this paper, we propose a personalization method of electromechanical models of the heart from cine-MR images based on the adjoint method. After estimation of electrophysiological parameters, the cardiac motion is estimated based on a proactive electromechanical model. Then cardiac contractilities on two or three regions are estimated by minimizing the discrepancy between measured and simulation motion. Evaluation of the method on three patients with infarcted or dilated myocardium is provided.
Adaptive block-based approach to image stabilization (2008)

The objective of image stabilization is to prevent image blurring caused by the relative motion between the camera and the scene during the image integration time. In this paper we propose a software approach to image stabilization based on capturing and fusing multiple short exposed image frames of the same scene. Due to their short exposure, the individual frames are noisy, but they are less corrupted by motion blur than it would be a single long exposed frame. The proposed fusion method is designed such that to compensate for the misalignment between the individual frames, and to prevent the blur caused by object motion in front of the camera during the multi-frame image acquisition. Various natural images acquired with camera phones have been used to evaluate the proposed image stabilization system. The results reveal the ability of the system to improve the image quality by simulating longer exposure times. In addition the system has the ability to reduce the effect of noise and outliers present in the individual short exposed frames.
Switched simplex high bit rate services in today's residential environment (2003)

Critical technologies required to support high bit rate and broadband services in the near and long term are discussed. Specifically, the loop requirements for residential video on demand are presented. The use of asymmetrical digital subscriber lines and Motion Picture Experts Group coding and switching systems to support video on demand are described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Dual Role of Platelet Protein Kinase C in Thrombus Formation (2007)

Protein kinase C (PKC) isoforms regulate many platelet responses in a still incompletely understood manner. Here we investigated the roles of PKC in the platelet reactions implicated in thrombus formation as follows: secretion aggregate formation and coagulation-stimulating activity, using inhibitors with proven activity in plasma. In human and mouse platelets, PKC regulated aggregation by mediating secretion and contributing to alphaIIbbeta3 activation. Strikingly, PKC suppressed Ca(2+) signal generation and Ca(2+)-dependent exposure of procoagulant phosphatidylserine. Furthermore, under coagulant conditions, PKC suppressed the thrombin-generating capacity of platelets. In flowing human and mouse blood, PKC contributed to platelet adhesion and controlled secretion-dependent thrombus formation, whereas it down-regulated Ca(2+) signaling and procoagulant activity. In murine platelets lacking G(q)alpha, where secretion reactions were reduced in comparison with wild type mice, PKC still positively regulated platelet aggregation and down-regulated procoagulant activity. We conclude that platelet PKC isoforms have a dual controlling role in thrombus formation as follows: (i) by mediating secretion and integrin activation required for platelet aggregation under flow, and (ii) by suppressing Ca(2+)-dependent phosphatidylserine exposure, and consequently thrombin generation and coagulation. This platelet signaling protein is the first one identified to balance the pro-aggregatory and procoagulant functions of thrombi.
Experience With Patients With Burns Who Refuse Blood Transfusion for Religious Reasons (1993)

Patients with extensive full-thickness burns who refuse blood transfusion present a challenge to the burn team. We have recently treated four such patients, and we achieved a successful outcome in three. Staged excision and skin graft operations with minimal blood loss were performed. Two patients were treated with erythropoietin. Patient autonomy should be accepted by the burn team, but opportunity should exist for reassessment of treatment plans.
A GaAs MCM power amplifier of 3.6 V operation with high efficiency of 49% for 0.9 GHz digital cellular phone systems (2002)

Extremely small GaAs PA has been implemented using the AlN multilayer MCM for 0.9 GHz digital cellular phones. The present PA exhibited the efficiency of 49% with drain supply voltage as low as 3.6 V. The PA was designed to provide the matching circuits with the maximum gain at the input and the minimum intermodulation distortion at the output.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Apple tasting and nearly one-sided learning (1992)

In the standard on-line model the learning algorithm tries to minimize the total number of mistakes made in a series of trials. On each trial the learner sees an instance, either accepts or rejects that instance, and then is told the appropriate response. The authors define a natural variant of this model ('apple tasting') where the learner gets feedback only when the instance is accepted. They use two transformations to relate the apple tasting model to an enhanced standard model where false acceptances are counted separately from false rejections. They present a strategy for trading between false acceptances and false rejections in the standard model. From one perspective this strategy is exactly optimal, including constants. They apply the results to obtain a good general purpose apple tasting algorithm as well as nearly optimal apple tasting algorithms for a variety of standard classes, such as conjunctions and disjunctions of n boolean variables. They also present and analyze a simpler transformation useful when the instances are drawn at random rather than selected by an adversary.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Oxygen Evolution on La1 − x Sr x Fe1 − y Co y  O 3 Series Oxides (1980)

series oxides with perovskite‐type structure were synthesized and were examined as the electrode for the oxygen evolution reaction in alkaline solution. The oxides except for , , and their neighbors were suitable for the electrode with respect to high conductivity. The catalytic activity for the oxygen evolution reaction increases along the direction from to in composition. It is concluded that the following two conditions are desirable for the perovskite‐type oxide with high catalytic activity for the oxygen evolution reaction: (i) the oxide has a broad band and (ii) the transition metal cation in the oxide exists as the higher oxidation state. In addition, it was found that the catalytic activity of is the highest in the oxides prepared in this study.
19.4 A 0.0049mm2 2.3GHz sub-sampling ring-oscillator PLL with time-based loop filter achieving −236.2dB jitter-FOM (2017)

High-performance phase-locked loops (PLLs) and clock multipliers with low jitter/phase noise are essential for numerous applications, such as digital microprocessors and SoCs, wireline/optical links, data converters and wireless radios. Given the increasing cost per unit area of advanced CMOS nodes and the need for a multitude of PLLs in complex digital systems, there is a need to miniaturize the area of PLLs while not sacrificing jitter and phase noise performance. Ring oscillators are extremely compact when compared with their LC counterparts, but exhibit typically 15-to-20dB worse phase noise performance. A conventional analog charge-pump PLL that exploits a passive loop filter can be low-noise but requires a large loop-filter capacitor for frequency compensation, which dominates the area in a ring-oscillator PLL. An analog sub-sampling PLL [1] dramatically lowers in-band phase noise, but requires an even larger loop-filter capacitor to achieve comparable loop dynamics unless pulsing is employed [1,2]. Digital PLLs are extremely compact but are plagued by quantization-noise and deterministic-jitter issues. Active loop filters can substantially lower the area requirements as well, but are associated with severe linearity and (phase) noise penalties, which are further exacerbated as CMOS technology scales. A time-based proportional-integral-controlled (PI-controlled) active loop filter was presented in [3] that uses a current-controlled ring oscillator (CCRO) as an ideal integrator, addressing linearity and DC gain challenges, but the loop filter noise results in a jitter Figure-of-Merit (FOM) that is >10dB inferior to state-of-the-art ring-oscillator PLLs.
Use of online resources while using a clinical information system. (2003)

Understanding context- and user-type-specific information needs can guide the development of infobuttons for use in a CIS.
Activism, academics and public awareness: a report on the Asia-Pacific Solidarity Conference April 10-13,1998 (1998)

Extract: In all, fourteen plenary sessions which in most cases were reports on the progress of democratisation and human rights issues from the many geographic regions represented. Included in these sessions were representatives from Tahiti, New Caledonia, Fiji, Bougainville, the Philippines, Indonesia, Sri Lanka, India, Japan, Papua New Guinea, New Zealand, Korea, Cambodia, Myanmar, Turkey and Nepal.
Phasengrenzkräfte und Adsorption an der Trennungsfläche Luft. Lösung anorganischer Elektrolyte (1924)

Article Phasengrenzkräfte und Adsorption an der Trennungsfläche Luft. Lösung anorganischer Elektrolyte was published on April 1, 1924 in the journal Zeitschrift für Physikalische Chemie (volume 109U, issue 1).
The Intestinal Microflora of Poultry and Game Birds During Life and After Storage (1979)

Journal Article The Intestinal Microflora of Poultry and Game Birds During Life and After Storage Get access ELLA M. BARNES, O.B.E. ELLA M. BARNES, O.B.E. Address of the President of the Society for Applied Bacteriology delivered at a meeting of the Society on 10 January 1979 Search for other works by this author on: Oxford Academic Google Scholar Journal of Applied Bacteriology, Volume 46, Issue 3, 1 June 1979, Pages 407–419, https://doi.org/10.1111/j.1365-2672.1979.tb00838.x Published: 01 June 1979
Growth-inhibitory activity of lymphoid cell plasma membranes. II. Partial characterization of the inhibitor. (1984)

We have shown that plasma membranes from lymphoid cells have inhibitory activity for the growth of normal lymphocytes and lymphoid tumor cells (Stallcup, K. C., A. Dawson, and M. F. Mescher, J. Cell Biol. 99:1221-1226). This growth-inhibitory activity has been found to co-purify with major histocompatibility complex class I antigens (H-2K and D) when these cell surface glycoproteins are isolated from detergent lysates of cells by affinity chromatography on monoclonal antibody columns. When incorporated into liposomes, the affinity-purified H-2 antigens inhibited the growth of both normal lymphocytes and tumor cells at concentrations of 1-3 micrograms/ml. Inhibition was readily reversed upon removal of the liposomes from the cell cultures, even after several days of exposure of cells to the inhibitor. Inhibitory activity was insensitive to protease digestion or heat treatment, indicating that it was not due to the H-2 glycoproteins. This was confirmed by the demonstration that inhibitory activity could be separated from the H-2 protein by gel filtration in the presence of deoxycholate and could be extracted from membranes or H-2 antigen preparations with organic solvents. The results demonstrate that the growth-inhibitory component(s) of the plasma membrane is a minor lipid or lipid-like molecule which retains activity in the absence of other membrane components. The findings reported here and in the preceding article suggest that this novel membrane component may have a role in control of lymphoid cell growth, possibly mediated by cell contacts.
Single high doses of cyclophosphamide enable the collection of high numbers of hemopoietic stem cells from the peripheral blood. (1990)

We used single high doses of cyclophosphamide (4 g/m2) to produce rebound increases in peripheral blood (PB) stem cells (PBSC) during recovery from myelosuppression, enabling their collection by apheresis for later autotransplantation. Thirty-three courses of cyclophosphamide were given to 30 patients with malignant lymphoma, multiple myeloma, or solid tumors. The neutrophil count was less than 0.5 x 10(9)/liter for a mean of 6.9 days (median 7 days), and fever occurred in 17 of 33 courses. Positive blood cultures occurred in two patients, one of whom died. The mean peak level of PB granulocyte-macrophage colony-forming units (CFU-GM) was 1517 x 10(3)/liter (median 2447 x 10(3)/liter), a 14-fold increase above the mean in normal subjects. The peak occurred at a mean of 16.6 days (median 16 days) after cyclophosphamide, generally coinciding with the time to reach 1.0 x 10(9) neutrophils per liter. Normal or minimally involved bone marrow and a rapid rise in leukocyte count during recovery were independent variables correlated to the peak of the rebound increase in PB CFU-GM levels. Previous chemotherapy and the duration of neutropenia were additional independent variables in the group with peak PB CFU-GM levels of greater than 1000 x 10(3)/liter. The mean total CFU-GM collected after a mean of five aphereses was 43.8 x 10(4)/kg body weight (BW) (median 35.5 x 10(4)/kg BW), significantly correlated with the mononuclear cell yield. We conclude that single 4 g/m2 doses of cyclophosphamide effectively produce high levels of PBSC, particularly but not exclusively in patients with normal or minimally involved bone marrow and who have not had intensive recent chemotherapy.