pinecone/core-2020-05-10-deduplication huggingface dataset:
Nonlinear dynamics of soft boson excitations in hot QCD plasma I:
  plasmon-plasmon scattering

On the basis of pure gauge sector of Blaizot-Iancu equation, we derive
kinetic equation of Boltzmann type, taking into account 2n+2-colorless plasmon
decay processes, n=1,2,.... Using so-called Tsytovich correspondence principle,
a direct connection between matrix elements of the plasmon decay processes and
certain effective current, generating these processes, is established. The
procedure of calculation of matrix element for simplest four-plasmon decay is
considered comprehensively. The limiting value of the plasmon occupation number
(~ 1/g^2, where g is a strong coupling) wherein all plasmon decays with n >= 1,
contribute to the right-hand side of the Boltzmann equation, is defined. The
iterative method of calculation of matrix elements for higher decay processes
(n > 1), is proposed, and a problem of their gauge-invariance is discussed.
Proceed from the general reasons the problem of extension of suggested approach
to the case of color plasmons, is considered. The explicit form of linearized
Boltzmann equation for color plasmons is written out, and it is shown that this
equation covariantly conserves the color current, resulting from color-plasmon
number density.Comment: 41 pages, LaTeX, 2 figures in P
Effective Field Theory for Fermi Systems in a large N expansion

A system of fermions with short-range interactions at finite density is
studied using the framework of effective field theory. The effective action
formalism for fermions with auxiliary fields leads to a loop expansion in which
particle-hole bubbles are resummed to all orders. For spin-independent
interactions, the loop expansion is equivalent to a systematic expansion in
1/N, where "N" is the spin-isospin degeneracy g. Numerical results at
next-to-leading order are presented and the connection to the Bose limit of
this system is elucidated.Comment: 25 pages, 10 figures, REVTeX
Boundary Structure and Module Decomposition of the Bosonic $Z_2$
  Orbifold Models with $R^2=1/2k$

The $Z_2$ bosonic orbifold models with compactification radius $R^2=1/2k$ are
examined in the presence of boundaries.
  Demanding the extended algebra characters to have definite conformal
dimension and to consist of an integer sum of Virasoro characters, we arrive at
the right splitting of the partition function. This is used to derive a free
field representation of a complete, consistent set of boundary states, without
resorting to a basis of the extended algebra Ishibashi states. Finally the
modules of the extended symmetry algebra that correspond to the finitely many
characters are identified inside the direct sum of Fock modules that constitute
the space of states of the theory.Comment: 28 page
Selective targeting of nitric oxide synthase inhibitors to system y+ in activated macrophages

Original article can be found at: http://www.sciencedirect.com/science/journal/0006291X Copyright Elsevier Inc. DOI : 10.1006/bbrc.1994.1511Amino acid transport systems mediating uptake of nitric oxide (NO) synthase inhibitors were characterized in the murine macrophage cell line J774. Treatment of J774 cells with bacterial endotoxin (LPS, 1 ??g ml-1, 24 h) selectively increased the transport capacity for NG-monomethyl-L-[14C]arginine (L-NMMA), whereas transport of NG-nitro-L-[3H]arginine (LNNA) was unaffected. Inhibition studies established that the cationic transport system y+ mediates uptake of L-arginine, L-NMMA and NG-iminoethyl-L-ornithine (L-NIO). A neutral transporter, with low substrate specificity and insensitive to LPS, mediates uptake of L-citrulline, L-NNA and its methyl ester L-NAME. We conclude that enhanced expression of the y+ transporter in LPS-stimulated macrophages (1) may facilitate the targeting of selective inhibitors of inducible NO synthase to activated cells generating NO in endotoxin shock
The Impact of a Computerized Potassium Alert on Adverse Drug Events and Pharmacists' Interventions

Background: Hyperkalemia is one of the most common drug-related electrolyte abnormalities resulting in adverse drug events (ADEs) at our institution.
Objective: To determine the effect of a computerized pharmacy alert on the number of adverse events related to hyperkalemia in a hospital setting and to study the impact of guidelines and education on pharmacist response to high potassium levels.
Methods: An alert was built into the pharmacy computer system, which warned pharmacists about a potassium level greater than 5.1 mEq/L when processing an order that could increase potassium. The alert was linked to a trigger medication list. After the alert was implemented, the number of ADEs due to hyperkalemia was compared for the 3 months pre- and postalert. Due to a lack of consistency in pharmacist interventions after implementation of the alert, hyperkalemia management guidelines were developed by the pharmacy department. The staff pharmacists received training on how to address hyperkalemia when processing prescriptions. After the education component was completed, the types of pharmacist interventions made pre- and posttraining were also compared.
Results: Building an automated pop-up alert resulted in a decreased number of ADEs related to hyperkalemia (p < 0.001) and reduced the utilization of medications needed to treat hyperkalemia (p = 0.019).
Conclusions: Implementation of a computerized pharmacy alert resulted in a statistically significant decrease in adverse drug events related to hyperkalemia in our institution. Educating pharmacists about hyperkalemia and developing guidelines for its management provided consistency among responses to the high potassium computerized alert. Further studies are needed to evaluate the impact of guideline development and pharmacist education on the trend of drug-induced hyperkalemia in an inpatient pharmacy setting.PublishedN/
A Cross-Sectional Survey of Knowledge, Attitude and Practices among the Lebanese Adult Population

Background: Influenza is a common preventable infectious disease associated with high mortality and morbidity. Vaccination is the most cost-effective measure to prevent influenza, yet the vaccine uptake is known to be low. No previous studies have assessed the rate of seasonal influenza vaccination use among the Lebanese population, nor examined the knowledge and attitudes towards the influenza vaccine. Methods: A cross-sectional survey was performed in 30 pharmacies randomly selected across Lebanon. A 19-item questionnaire was used to record influenza vaccination status, knowledge and attitudes towards the influenza vaccine among the Lebanese general population. Results: The survey response rate was 93%. Among the 640 study participants, the overall 2014-2015 seasonal influenza vaccination rate was 27.6%. The majority of participants (72.4%) reported irregular uptake of the vaccine. Results of the multivariate analysis revealed that elderly people (OR = 2.25, CI = 1.08–4.71), with higher education (OR = 1.42, CI = 1.09–1.84), higher physical activity (OR significantly higher than 1 for all categories), and chronic respiratory disease (OR = 3.24, CI = 1.58–6.62) were more regularly vaccinated, while those who visit the doctor “only when needed” (OR = 0.55, CI = 0.34–0.88) and those who consume more than seven drinks/week (OR = 0.24, CI = 0.09–0.65) were less regularly vaccinated. When introducing knowledge and attitude variables to the model, “thinking that the vaccine was not needed” was the only correlate that demonstrated a significant inverse association with regular influenza vaccination (OR = 0.15; p = 0.017). Conclusions: Suboptimal vaccination rates exist among the Lebanese ambulatory adult population. Clear misinformation on the importance of regular influenza immunization is also highlighted. This evidence underscores a compelling need to raise public awareness regarding the efficacy of the influenza vaccine.PublishedN/
Chronic Progressive External Ophthalmoplegia Is Associated with a Novel Mutation in the Mitochondrial tRNA(Asn) Gene

Chronic progressive external ophthalmoplegia (CPEO) is caused by a decreased oxidative phosphorylation (OXPHOS) activity due to large-scale deletions of the mitochondrial genome in 50 % of the patients. The deletions encompass structural OXPHOS genes as well as tRNA genes, required for their expression so that the pathogenesis could be due to the deleted OXPHOS subunits or to an impaired mitochondrial translation. We have analyzed the mitochondrial genome of a patient presenting with CPEO for single base substitutions and discovered a novel heteroplasmic mutation in the tRNAAsn gene at position 5692 that converts a highly conserved adenine into a guanine. This mutation is unique because it is located at the transition of the anticodon loop to the anticodon stem and it leads to an additional base pair, thus reducing the number of loop-forming nucleotides from seven to five. Our findings suggest that CPEO can be caused by a single base substition in a mitochondrial tRNA gene so that the mitochondrial protein synthesis becomes the rate limiting step in OXPHOS fidelity.
Cloned prokaryotic iron superoxide dismutase protects yeast cells against oxidative stress depending on mitochondrial location

Superoxide dismutase (SOD) is considered to be the first line of defense against oxygen toxicity. It exists as a family of three metalloproteins with copper,zinc (Cu,ZnSOD), manganese (MnSOD), and iron (FeSOD) forms. In this work, we have targetedEscherichia coliFeSOD to the mitochondrial intermembrane space (IMS) of yeast cells deficient in mitochondrial MnSOD. Our results show that FeSOD in the IMS increases the growth rate of the cells growing in minimal medium in air but does not protect the MnSOD-deficient yeast cells when exposed to induced oxidative stress. Cloned FeSOD must be targeted to the mitochondrial matrix to protect the cells from both physiological and induced oxidative stress. This confirms that the superoxide radical is mainly generated on the matrix side of the inner mitochondrial membrane of yeast cells, without excluding its potential appearance in the mitochondrial IMS where its elimination by SOD is beneficial to the cells.peer-reviewe
Stimulation of yeast 3-phosphoglycerate kinase gene promoter by paraquat

Yeast cells exposed to adverse conditions employ a number of defense mechanisms in order to respond effectively to the stress and sustain a high proliferation rate. It has been shown that several glycolytic enzymes are induced upon heat treatment of yeast. In this work, we used a reporter plasmid construct to study the effects of oxidative stress, induced by the O•−2-generating compound paraquat (PQ), on the yeast 3-phosphoglycerate kinase gene (PGK) promoter. Our results show that (i) moderate, as opposed to excessive, doses of PQ induce increased stimulation of the PGK promoter, at midlogarithmic phase of growth; and (ii) the thiol antioxidant N-acetylcysteine cancels this stimulatory effect. These observations may represent one aspect of a more general role for glycolysis in maintaining the energy pools of yeast cells under stress.peer-reviewe
Mammalian PASKIN, a PAS-serine/threonine kinase related to bacterial oxygen sensors.

The PAS domain is a versatile protein fold found in many archaeal, bacterial, and plant proteins capable of sensing environmental changes in light intensity, oxygen concentration, and redox potentials. The oxygen sensor FixL from Rhizobium species contains a heme-bearing PAS domain and a histidine kinase domain that couples sensing to signaling. We identified a novel mammalian PAS protein (PASKIN) containing a domain architecture resembling FixL. PASKIN is encoded by an evolutionarily conserved single-copy gene which is ubiquitously expressed. The human PASKIN and mouse Paskin genes show a conserved intron-exon structure and share their promoter regions with another ubiquitously expressed gene that encodes a regulator of protein phosphatase-1. The 144-kDa PASKIN protein contains a PAS region homologous to the FixL PAS domain and a serine/threonine kinase domain which might be involved in signaling. Thus, PASKIN is likely to function as a mammalian PAS sensor protein
I like it, but I'm not sure why: Can evaluative conditioning occur without conscious awareness?

There is good evidence that, in general, autonomic conditioning in humans occurs only when subjects can verbalize the contingencies of conditioning. However, one form of conditioning, evaluative conditioning (EC), seems exceptional in that a growing body of evidence suggests that it can occur without conscious contingency awareness. As such, EC offers a unique insight into what role contingency awareness might play in associative learning. Despite this evidence, there are reasons to doubt that evaluative conditioning can occur without conscious awareness. This paper aims to critically review the EC literature and to draw some parallels to what is known about autonomic conditioning. In doing so, some important general issues about measuring contingency awareness are raised. These issues are illustrated with a brief report of an experiment in which a sensitive measure of contingency awareness is compared against a commonly used measure
Evaluative Conditioning Is Pavlovian Conditioning: Issues of Definition, Measurement, and the Theoretical Importance of Contingency Awareness

In her commentary of Field (1999), Hammerl (1999) has drawn attention to several interesting points concerning the issue of contingency awareness in evaluative conditioning. First, she comments on several contentious issues arising from Field's review of the evaluative conditioning literature, second she critiques the data from his pilot study and finally she argues the case that EC is a distinct form of conditioning that can occur in the absence of contingency awareness. With reference to these criticisms, this reply attempts to address Hammerl's comments by exploring the issues of how awareness is defined, how it is best measured, and whether it is reasonable to believe that EC uniformly occurs in the absence of contingency awareness. The article concludes that the available evidence supports Field's proposition that EC is, in fact, Pavlovian learning
When All Is Still Concealed: Are We Closer to Understanding the Mechanisms Underlying Evaluative Conditioning?

Fulcher and Hammerl's (2001) important exploration of the role of contingency awareness in evaluative conditioning (EC) raises a lot of issues for discussion: (1) what boundaries, if any, exist between EC and affective learning paradigms?; (2) if EC does occur without awareness does this mean it is nonpropositional learning?; (3) is EC driven by stimulus–response (S–R), rather than stimulus–stimulus (S–S), associations and if so should it then surprise us that contingency awareness is not important?; and (4) if S–R associations are at the heart of EC, should we automatically assume EC is part of a different learning mechanism to autonomic Pavlovian conditioning (Field, 2000a, 2000b)? This article, after a critical review of Fulcher and Hammerl's work, discusses these issues with reference to what can be realistically inferred about the mechanisms underlying EC
Templates in chess memory: A mechanism for recalling several boards

This paper addresses empirically and theoretically a question derived from the chunking theory of memory (Chase & Simon, 1973): To what extent is skilled chess memory limited by the size of short-term memory (about 7 chunks)? This question is addressed first with an experiment where subjects, ranking from class A players to grandmasters, are asked to recall up to 5 positions presented during 5 seconds each. Results show a decline of percentage of recall with additional boards, but also show that expert players recall more pieces than is predicted by the chunking theory in its original form. A second experiment shows that longer latencies between the presentation of boards facilitate recall. In a third experiment, a Chessmaster gradually increases the number of boards he can reproduce with higher than 70% average accuracy to nine, replacing as many as 160 pieces correctly. To account for the results of these experiments, a revision of the Chase-Simon theory is proposed. It is suggested that chess players, like experts in other recall tasks, use long-term memory retrieval structures (Chase & Ericsson, 1982)  or  templates in addition to chunks in STM, to store information rapidly
Management, Image and Management Accounting

This paper considers management accounting technique, specifically activity-based cost management, as a modelling process. Particularly in Anglo-Saxon capitalism, various institutional pressures have worked to dissociate management from expertise in the managed process. Management of this character can only engage with concrete processes by modelling them in terms which it can comprehend and with which it can engage. The result is a market in management and accounting techniques for producing these simplified representations. Those discussed in this paper consist essentially of a reporting framework which is imposed on the expert practitioner, so that the process is re-described in modelled form. Precisely because the resulting models are simplified, however, the consequences of managing through them are dysfunctional in various ways.\ud
In order to show the underlying similarities between apparently unconnected instances of this process, the paper discusses some attempts to open up aesthetic design to management control before proceeding to the analysis of activity-based cost management.Peer-reviewedPost-prin
Culture of graft-infiltrating cells from cryopreserved endomyocardial biopsies

Graft-infiltrating cells can be cultured from fresh endomyocardial biopsies (EMB) taken after heart transplantation to determine their growth patterns, phenotypic composition, and functional characteristics for clinical or scientific purposes. In this study we investigated whether graft-infiltrating cells can also be cultured successfully after cryopreservation of these EMB. Three different cryopreservation methods were used. One method gave successful growth in 100% of the cases (n = 6): The biopsy fragments were preincubated in 10% vol/vol dimethyl sulfoxide during 5 min at O°C, frozen to -70°C at approximately 1°C per minute, and subsequently immersed and stored in liquid nitrogen. Thawing was performed rapidly in water at 37°C. In addition, the effect of cryopreservation on cell surface phenotype and donor-specific cytotoxicity of these graft-infiltrating cells was analyzed. When compared to cultures of nonfrozen control biopsies, both qualities remained constant in most cases, although a variation in CD4+/CD8+ cell ratio was observed in 33% of these cultures. However, when nonfrozen fragments of size-matched biopsies were cultured separately, a similar variation in phenotype was noted, indicating that this phenomenon can be attributed to sampling variation and not to the cryopreservation procedure. The present findings suggest that it is no longer required to culture fresh (nonfrozen) post-transplant EMB to propagate graft-infiltrating cells: Culturing can be limited to cryopreserved EMB that are selected retrospectively, depending on actual clinical or scientific interests. Besides greatly facilitating the long-term monitoring of heart transplant recipients, this also means a substantial decrease in cost and work load for laboratories involved in heart transplantation
Using local planar geometric invariants to match and model images of line segments

International audienceImage matching consists of finding features in different images that represent the same feature of the observed scene. It is a basic process in vision whenever several images are used. This paper describes a matching algorithm is to assume that the apparent motion between the two images. The key-idea of the algorithm is to assume that the apparent motion between the two imagescan be approximated by a planar geometric transformation (a similartiy or an affine transformation) and to compute such an approximation. Under such an assumption, local planar invariants related the kind of transformation used as approximation, should have the same value in both images and matched according to their values. A global constraint is added to insure a global coherency between all the possible matches : all the local matches must define approximately the same geometric transformation between the two images. These first matches are verified and completed using a better and more global approximation of the apparent motion by a planar homography, and an estimate of the epipolar geometry. If more than two images are considered, they are initially matched pairwise, then global matches are deduced in a second step. Finally, from a set of images representing different aspects of an object, it is possible to compare them, and to compute a model of each aspect using the matching algorithm. This work uses in a new way many elements already known in vision : some of the local planar invariants used here were presented as quasi-invariants by Binford and studied by Ben-Arie in his work on the Peaking Effect. The algorithm itself uses other ideas coming from the geometric hashing and the Hough algorithms. Its main limitations come from the invariants used. They are really stable when they are computed for a planar object or for many man-made objects which contain many coplanar facets and elements. On the other hand, the algorithm will probably fail when used with images of very general polyhedrons. Its main advantages are that it still works even if the images are noisy and the polyhedral approximation of the contours is not exact, if the apparent motion between the images is not infinitesimal, if they are several different motions in the scene, and if the camera is uncalibrated and its motion unknown. The basic matching algorithm is presented in the section 2, the and completion stages in section 3, the matching of several images is studied in section 4 and the algorithm to model the different aspects of an object is presented in section 5. Results obtained with the different algorithms are shown in the corresponding sections
Quaternionic Fourier-Mellin Transform

In this contribution we generalize the classical Fourier Mellin transform [S.
Dorrode and F. Ghorbel, Robust and efficient Fourier-Mellin transform
approximations for gray-level image reconstruction and complete invariant
description, Computer Vision and Image Understanding, 83(1) (2001), 57-78, DOI
10.1006/cviu.2001.0922.], which transforms functions $f$ representing, e.g., a
gray level image defined over a compact set of $\mathbb{R}^2$. The quaternionic
Fourier Mellin transform (QFMT) applies to functions $f: \mathbb{R}^2
\rightarrow \mathbb{H}$, for which $|f|$ is summable over $\mathbb{R}_+^*
\times \mathbb{S}^1$ under the measure $d\theta \frac{dr}{r}$. $\mathbb{R}_+^*$
is the multiplicative group of positive and non-zero real numbers. We
investigate the properties of the QFMT similar to the investigation of the
quaternionic Fourier Transform (QFT) in [E. Hitzer, Quaternion Fourier
Transform on Quaternion Fields and Generalizations, Advances in Applied
Clifford Algebras, 17(3) (2007), 497-517.; E. Hitzer, Directional Uncertainty
Principle for Quaternion Fourier Transforms, Advances in Applied Clifford
Algebras, 20(2) (2010), 271-284, online since 08 July 2009.].Comment: 11 pages, 9 figure