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New Term (new + term)
Selected AbstractsCHRONIC KIDNEY DISEASE,MINERAL AND BONE DISORDER (CKD-MBD): A NEW TERM FOR A COMPLEX APPROACHJOURNAL OF RENAL CARE, Issue 2009Franti, vára MD SUMMARY The global widespread of the chronic kidney disease (CKD) is a worldwide health problem. Its increasing incidence and prevalence and adverse outcomes (including decreased quality of life, increased morbidity and mortality) represents a huge challenge for all recent health are systems. Reflecting this situation, the new, global initiative (KDIGO) was established to enhance communication and clinical decision-making, promote the use of evidence based medicine and facilitate clinical research. The new definition, evaluation and classification of "renal osteodystrophy"; has been one of the first outcome of this initiative, suggesting the topic of chronic kidney disease,mineral and bone disorder (CKD-MBD) to be a hot problem of recent nephrology. The new terminology is consistent with a recent view on this topic and describes CKD-MBD as a complex syndrome, including abnormal mineral and PTH metabolism, altered bone structure as far as extra-skeletal calcifications. [source] Rigorous modeling of UV absorption by TiO2 films in a photocatalytic reactorAICHE JOURNAL, Issue 7 2000Z. Zhang The radiation absorption profiles on the surfaces of TiO2 films in a corrugated-plate photocatalytic reactor were modeled based on first principles. A new term, the local-area-specific rate of energy absorption (LASREA), was adopted to describe the catalyst surface radiation in heterogeneous photoreactors. The LASREA and the energy absorption efficiency were both quite sensitive to the dimensions of the corrugated plates. Due to the multiple photon reflections between the opposing surfaces, corrugated plates possess a superior capability for recapturing longer wavelength photons that would otherwise be reflected out of some reactor designs. This results in higher energy absorption efficiency and more uniform LASREA on the catalyst films. Compared to a flat plate, corrugations are predicted to enhance the energy absorption efficiency by up to 50% for UV-A fluorescent-lamp-powered systems and more than 100% for solar-powered systems. [source] Early Mesozoic evolution of alivincular bivalve ligaments and its implications for the timing of the ,Mesozoic marine revolution'LETHAIA, Issue 2 2004MICHAEL HAUTMANN The early Mesozoic radiation of the Pteriomorphia was accompanied and furthered by the development of several new types of alivincular ligaments. These new types evolved as modifications of the primitive alivincular-areate (new term) ligament, which is characterized by an ontogenetic shift of both the central resilium and the straight lateral ligament in the direction of main shell growth. Arching of the attachment surface of the ligament led to the alivincular-arcuate (new term) ligament type, which has been realized by the Ostreidae only. By contrast, a replacement of the lateral ligament by hinge teeth, limiting the (primary) ligament to a central groove (alivincular-fossate, new term), has evolved independently in three families (Dimyidae, Plicatulidae and Spondylidae). Functionally, both kinds of modification effectively impede shearing of the valves and are interpreted as an antipredatory adaptation advantageous in the cemented habit of these families. The alivincular-alate (new term) ligament of the Entoliidae and Pectinidae differs from the other types of alivincular ligaments by different growth directions of resilium and lateral ligament, which result in an internal position of the resilium suitable for fast and powerful opening of the valves. This arrangement is an important prerequisite for effective swimming, which, in its turn, is a behaviour chiefly used to escape from predator attacks. The simultaneous early Mesozoic appearance of different antipredatory adaptations within independent clades hints at increased predator pressure as a stimulant and may therefore point to a contemporaneous proliferation of durophagous predators. Hence, an important aspect of the ,Mesozoic marine revolution' might have started earlier than previously thought. [source] Risk of drug-related problems for various antibiotics in hospital: assessment by use of a novel method,PHARMACOEPIDEMIOLOGY AND DRUG SAFETY, Issue 8 2008Hege Salvesen Blix MSc Abstract Purpose To investigate the use of antibiotics in hospitals, to explore drug-related problems (DRPs) linked to antibiotics and to introduce a novel way of expressing the risks accompanying use of various antibiotics. Methods Patients from internal medicine departments in four Norwegian hospitals were prospectively included in 2002. Demographics, drugs used, medical history, laboratory data and clinical/pharmacological risk factors were recorded. DRPs were identified by clinical pharmacists and assessed in multidisciplinary hospital teams. A new term, the drug risk ratio, was established and defined as the number of times the antibiotic was associated with DRPs in relation to the number of times it was used. Results Out of the 668 patients included, 283 patients (42%) used antibiotics (AB users). AB users were older (76.2 vs. 73.9), used more drugs on admission (5.1 vs. 4.4) and had more DRPs (3.0 vs. 2.2) than non-users. The DRP categories no further need for drug, non-optimal drug and non-optimal dose were most frequently observed. The drug risk ratio, calculated for 12 antibiotic groups, was highest for aminoglycosides (0.77), , -lactamase-resistant penicillins (0.56), macrolides (0.54) and quinolones (0.48) and lowest for first- and third-generation cephalosporins, 0.17 and 0.13, respectively. Conclusions Nearly half of the hospitalised patients were prescribed antibiotics and antibiotic associated DRPs occurred frequently. The drug risk ratio for the different antibiotic groups varied with a factor of six from the lowest to the highest. A high drug risk ratio would alert of antibiotics which require heightened awareness when going to be used in clinical practice. Copyright © 2008 John Wiley & Sons, Ltd. [source] A visual interface for model-fittingQUALITY AND RELIABILITY ENGINEERING INTERNATIONAL, Issue 2 2001Andrew J Smith Abstract We describe a tool which supports the activity of a human being in fitting a mathematical model to measured or simulated data. The tool offers two principal advantages; its use requires a minimum of statistical knowledge, and its visual and interactive nature ensures that its use is intuitive. The tool is novel in that, in the iterative and often exploratory construction of a model, it represents graphically the benefit of all possible single changes to the existing model; a single selection action suffices to add a new term to a model or to remove it. Copyright © 2001 John Wiley & Sons, Ltd. [source] Serpens endocrania symmetrica (SES): A new term and a possible clue for identifying intrathoracic disease in skeletal populationsAMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 3 2002Israel Hershkovitz Abstract This paper describes a phenomenon in the endocranial plate, which we have termed "serpens endocrania symmetrica" (SES), and discusses its value as a diagnostic tool. The affected discolored bone area exhibits disruption of the endocranial surface, lending it a maze-like appearance. Histological sections demonstrate that the process is limited to the most superficial portion of the endocranium, with no diploic and ectocranial involvement (sinus areas excepted). Adult skulls (n = 1,884) from the Hamann-Todd collection (HTH), housed at the Cleveland Museum of Natural History, were utilized for the present study. SES was recognized in 32 of the 1,884 skulls studied (1.7%). The frequency of SES among individuals reported to have died from tuberculosis (TB) was 4.4%. The rate of SES in the non-TB sample was only 0.53%. The locations were as follows: limited to sinus area, 28.1%; calvarium (excluding the sinuses), 46.9%; sinus + calvarium, 25.0%. SES was bilateral in 90.9% of cases. Twenty-five of the 32 individuals (78.1%) with SES in the HTH collection had tuberculosis specifically listed as the cause of death. Six of the other 7 individuals had infections other than TB. In 29 of the 32 individuals with SES, infection involved structures within the thorax. As SES was also associated with another osteological phenomenon known to represent pulmonary disease, i.e., hypertrophic osteoarthropathy (HOA; 68.0% of SES individuals also had HOA), SES may be of diagnostic value in paleopathology for the recognition of intrathoracic disease, and perhaps tuberculosis. Am J Phys Anthropol 118:201,216, 2002. © 2002 Wiley-Liss, Inc. [source] Modeling of polycyclic aromatic hydrocarbon SLE in aromatic solventsASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING, Issue 3 2010Thenmozhi Muthukumarasamy Abstract Equilibrium solubilities of polycyclic aromatic hydrocarbon (PAH) solutes naphthalene, fluorene, acenaphthalene, fluoranthene, anthracene, phenanthrene, pyrene, chrysene and triphenylene in benzene and substituted benzene solvents are predicted using the Dortmund-AU model. The Dortmund-AU method performs better than the UNIFAC and modified UNIFAC (Dortmund) models when applied to PAH in benzene systems, but the accuracy of predictions deteriorates in the case of PAHs that have melting points greater than 380 K. Accounting for the heat capacity change on melting term makes considerable difference to the ideal solubility calculation in the case of higher-melting PAHs. A new term is added to the residual part of activity coefficient in the UNIFAC model to derive a modified empirical version. Application of this model to PAH solid,liquid equilibria is verified and the results are compared with those of Dortmund-AU model. Copyright © 2009 Curtin University of Technology and John Wiley & Sons, Ltd. [source] Building a theoretical framework of web-based instruction in the context of distance educationBRITISH JOURNAL OF EDUCATIONAL TECHNOLOGY, Issue 5 2001Insung Jung This study attempts to analyze teaching and learning processes of web-based instruction (WBI) as shown in recent literature, and to develop a theoretical framework of WBI using a prominent existing distance education theory called Transactional Distance Theory in order to provide better understanding of the essential pedagogical components of WBI. Recent studies have shown that the key elements of the structure of WBI are (1) content expandability, (2) content adaptability, and (3) visual layout. And also three emerging types of interaction, or three aspects of dialogue, in WBI have been identified through the studies. Those types were: (1) academic interaction, (2) collaborative interaction, and (3) interpersonal interaction. Finally, both learner collaboration (or learner collaboravity, if we create a new term) and learner autonomy seem to have emerged in Web-based learning environments. [source] Toward Improved Implementation of Evidence-based Clinical Algorithms: Clinical Practice Guidelines, Clinical Decision Rules, and Clinical PathwaysACADEMIC EMERGENCY MEDICINE, Issue 11 2007Gary M. Gaddis MD This is a summary of the consensus-building workshop entitled "Guideline Implementation and Clinical Pathways," convened May 15, 2007, at the Academic Emergency Medicine Consensus Conference, "Knowledge Translation in Emergency Medicine: Establishing a Research Agenda and Guide Map for Evidence Uptake." A new term, "evidence-based clinical algorithms" is suggested to encompass evidence-based information codified into clinical pathways, clinical practice guidelines, and clinical decision rules. Examples of poor knowledge translation (KT) relevant to the specialty of emergency medicine are identified, followed by brief descriptions of important research and concepts that inform the research recommendations. Four broad themes for research to improve the KT of evidence-based clinical algorithms are suggested: organizational factors, cognitive factors, social factors, and motivational factors. In all cases, research regarding optimizing KT for the subthemes identified by Glasziou and Haynes, "getting the evidence straight," and "getting the evidence used," are interwoven into the thematic research recommendations. Consensus was reached that the majority of research efforts to evaluate means to improve KT need to be centered on the factors that show promise to enhance "getting the evidence used," focused especially on organizational factors. [source] Emerging Adulthood: What Is It, and What Is It Good For?CHILD DEVELOPMENT PERSPECTIVES, Issue 2 2007Jeffrey Jensen Arnett ABSTRACT,This article asserts that the theory of emerging adulthood is a useful way of conceptualizing the lives of people from their late teens to their mid- to late 20s in industrialized societies. The place of emerging adulthood within the adult life course is discussed. The weaknesses of previous terms for this age period are examined, and emerging adulthood is argued to be preferable as a new term for a new phenomenon. With respect to the question of whether emerging adulthood is experienced positively or negatively by most people, it is argued that it is positive for most people but entails developmental challenges that may be difficult and there is great heterogeneity, with some emerging adults experiencing serious problems. With respect to the question of whether or not emerging adulthood is good for society, it is argued that claims of the dangers of emerging adulthood are overblown, but emerging adulthood is probably a mixed blessing for society. [source] Headache and Psychological Functioning in Children and AdolescentsHEADACHE, Issue 9 2006Scott W. Powers PhD Headache can affect all aspects of a child's functioning, leading to negative affective states (eg, anxiety, depression, anger) and increased psychosocial problems (for instance, school absences, problematic social interactions). For children and adolescents who experience frequent headache problems, comorbid psychological issues are a well-recognized, but poorly understood, clinical phenomenon. The confusion surrounding the relationship between pediatric headache and psychopathology exists for several reasons. First, in some cases, headache has been inappropriately attributed to psychological or personality features based on anecdotal observations or interpretations that go beyond the available data. Additionally, measures of psychopathology have not always adhered to the American Psychiatric Association's diagnostic criteria, thus reducing the reliability of diagnostic judgments. Furthermore, the diagnosis of headache has not always followed standard criteria, and has been complicated by the emergence of new terms and evolving measures. Finally, methodological shortcomings, such as incomplete descriptions of the procedures and criteria used for the study, inadequate descriptions of headache severity, lack of a control group for comparison with individuals without headaches, reliance primarily on cross-sectional research designs that are often discussed with inferences to causal hypotheses, and the use of unstandardized assessment measures, have significantly limited the validity of research findings. The goal of the current review is to examine the extant literature to provide the most up-to-date picture on what the research has made available about the magnitude, specificity, and causes of psychopathology in children and adolescents with headache, in an effort to further elucidate their relationship and prompt a more methodologically rigorous study of these issues. [source] APPLICATION OF SENSORY DESCRIPTIVE ANALYSIS TO COMPLETE THE CURRENT OFFICIAL CARD OF THE GALICIAN ORUJO SPIRITSJOURNAL OF SENSORY STUDIES, Issue 3 2009SANDRA CORTÉS ABSTRACT Ten samples of young Galician Orujo spirits from different grape varieties were evaluated using sensory descriptive analysis by a panel of 12 professional Orujo tasters. The aim of this study was to generate attributes to sensorially describe this kind of drinks in order to complete the current official card and permit their differentiation and varietal characterization. In the first session of analysis, the Orujo tasters identified a high number of descriptors, that they were then reduced after the elimination of hedonic terms and inappropriate attributes by using statistical methods. High significant correlations were found between the new descriptive parameters selected and the original terms employed to qualify the Orujo samples. Herbaceous, floral, ensilage and heads for aroma, spicy,caustic and sweet for taste and fruity for aftertaste were the attributes that showed significant differences between the Orujo samples. These terms may qualitatively be considered as typical descriptors of Orujos from Galicia. PRACTICAL APPLICATIONS In the original card employed to qualify Galician Orujo spirits, only hedonic terms are used, all of them with an important subjective influence. The new card, in which descriptive terms generated by the official panel are included, too, permits, besides qualifying of the samples, defining of their profile in the same tasting session. With the new terms, the tasters can justify the total points given to each sample. The final sensory profile obtained for a single Orujo variety will result of a large group of Orujo samples tasted during several sessions. This tool will be very useful for the Regulating Commission to obtain more information about the sensory characteristics of this kind of alcoholic beverage and for the corresponding distillery, in case a sample was rejected, to know which attributes were found as negatives. [source] Analysis of the effect of a mean velocity field on a mean field dynamoMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Issue 4 2007Alejandra Kandus ABSTRACT We study semi-analytically and in a consistent manner the generation of a mean velocity field by helical magnetohydrodynamical (MHD) turbulence, and the effect that this field can have on a mean field dynamo. Assuming a prescribed, maximally helical small-scale velocity field, we show that large-scale flows can be generated in MHD turbulent flows via small-scale Lorentz force. These flows back-react on the mean electromotive force of a mean field dynamo through new terms, leaving the original , and , terms explicitly unmodified. Cross-helicity plays the key role in interconnecting all the effects. In the minimal , closure that we chose to work with, the effects are stronger for large relaxation times. [source] Cladistic Analysis of A Problematic Ammonite Group: the Hamitidae (Cretaceous, Albian,turonian) and Proposals for New Cladistic TermsPALAEONTOLOGY, Issue 4 2002Neale MonksArticle first published online: 24 NOV 200 The Hamitidae are a family of mid,Cretaceous heteromorph ammonites including lineages leading to four other families. Problems are outlined in trying to describe the phylogeny of completely extinct groups such as these heteromorph ammonites using the existing cladistic terminology, which is largely concerned with extant taxa and their ancestors. To solve these problems, two new terms are proposed: ,crown groups and ,stem groups, which are equivalent to crown and stem groups in terms of the evolutionary history of a clade, but are not defined on the basis of extant taxa. Instead they are defined by the topology of the phylogenetic tree, the ,crown group being a clade defined by synapomorphies but which gave rise to no descendants. A ,stem group is a branch of a phylogenetic tree which comprises the immediate sister groups of a given ,crown group but is not itself a clade. Examples of these terms are described here with reference to the phylogeny of the Hamitidae and their descendants. The Hamitidae are paraphyletic and form ,stem groups to a number of ,crown groups, namely the Anisoceratidae, Baculitidae, Scaphitidae, and Turrilitidae. The definitions of the genera and subgenera are refined with respect to the type species and the clades within which they occur, and four new genera are described: Eohamites, Helicohamites, Sziveshamites, and Planohamites. [source] Duality between constraints and gauge conditionsANNALEN DER PHYSIK, Issue 7-8 2007M.N. Stoilov Abstract There are two important sets of seemingly absolutely different objects in any gauge theory: the set of constraints, which generate the local symmetry and the set of gauge conditions, which fix this symmetry; the first one is determined by the Lagrangean of the model, the second is a matter of choice. However, in the transition amplitude constraints and gauge conditions participate in exactly the same way. This suggests the possibility for existence of a model with the same transition amplitude and in which gauge conditions and constraints are interchanged. We investigate the conditions that gauge fixing terms should satisfy so that this dual picture is allowed. En route, we propose to add new terms in the constraints which would generate the gauge transformation of the Lagrange multipliers and construct two BRST charges , one, as usual, for the constraints, and one for the gauge conditions. [source] | |||||||||||||||||||