Degrees Conferred by Schools and Colleges of Pharmacy, 1987-1988.
Penna, Richard P.; Sherman, Michael S.
1989-01-01
Data and statistics, gathered by the American Association of Colleges of Pharmacy, on the degrees conferred by U.S. pharmacy schools are presented. Data on entry level degrees, post-baccalaureate PharmD, graduate degrees, gender, and ethnic minorities are analyzed. (Author/MLW)
Houle, Cyril O.
This book examines the external degree in relation to the extremes of attitudes, myths, and data. Emphasis is placed on the emergence of the American external degree, foreign external-degree programs, the purpose of the external degree, the current scene, institutional issues, and problems of general policy. (MJM)
Inverse Degree and Connectivity
Institute of Scientific and Technical Information of China (English)
MA Xiao-ling; TIAN Ying-zhi
2013-01-01
Let G be a connected graph with vertex set V(G),order n =丨V(G)丨,minimum degree δ(G) and connectivity κ(G).The graph G is called maximally connected if κ(G) =δ(G).Define the inverse degree of G with no isolated vertices as R(G) =Σv∈V(G)1/d(v),where d(v) denotes the degree of the vertex v.We show that G is maximally connected if R(G) ＜ 1 + 2/δ + n-2δ+1/(n-1)(n-3).
Courtis, Barbara
1974-01-01
Discusses a student's experience with a research project on the synthesis and reactions of an organo-platinum complex with an organo-Group IV linkage, including the advantages and disadvantages of such a degree by thesis course. (CC)
De Marco, N
2013-01-01
Two identical sets of calorimeters are located on both sides with respect to the beam Interaction Point (IP), 112.5 m away from it. Each set of detectors consists of a neutron (ZN) and a proton (ZP) Zero Degree Calorimeter (ZDC), positioned on remotely controlled platforms. The ZN is placed at zero degree with respect to the LHC beam axis, between the two beam pipes, while the ZP is positioned externally to the outgoing beam pipe. The spectator protons are separated from the ion beams by means of the dipole magnet D1.
Thomas, EG
2014-01-01
Physics to a Degree provides an extensive collection of problems suitable for self-study or tutorial and group work at the level of an undergraduate physics course. This novel set of exercises draws together the core elements of an undergraduate physics degree and provides students with the problem solving skills needed for general physics' examinations and for real-life situations encountered by the professional physicist. Topics include force, momentum, gravitation, Bernoulli's Theorem, magnetic fields, blackbody radiation, relativistic travel, mechanics near the speed of light, radioactive
Registered Nurse (Associate Degree).
Ohio State Univ., Columbus. Center on Education and Training for Employment.
This document, which is designed for use in developing a tech prep competency profile for the occupation of registered nurse (with an associate degree), lists technical competencies and competency builders for 19 units pertinent to the health technologies cluster in general and 5 units specific to the occupation of registered nurse. The following…
Johnson, Jean
2012-01-01
A 2011 survey of young adults conducted by Public Agenda found that a cluster of obstacles have prevented many of them from competing college. The author describes the opportunity, college awareness, and funding gaps that put a postsecondary degree out of the reach of so many young people. For example, just 3 in 10 non-college-completers are aware…
When Graduate Degrees Prostitute the Educational Process: Degrees Gone Wild
Lumadue, Richard T.
2006-01-01
Graduate degrees prostitute the educational process when they are sold to consumers by unaccredited degree/diploma mills as being equivalent to legitimate, bona-fide degrees awarded by accredited graduate schools. This article carefully analyzes the serious problems of bogus degrees and their association with the religious higher education…
Degree-degree dependencies in random graphs with heavy-tailed degrees
Hofstad, van der Remco; Litvak, Nelly
2014-01-01
Mixing patterns in large self-organizing networks, such as the Internet, the World Wide Web, social, and biological networks are often characterized by degree-degree dependencies between neighboring nodes. In assortative networks, the degree-degree dependencies are positive (nodes with similar degre
Degree-Degree Dependencies in Random Graphs with Heavy-Tailed Degrees
van der Hofstad, Remco; Litvak, Nelli
2014-01-01
Mixing patterns in large self-organizing networks, such as the Internet, the World Wide Web, social, and biological networks are often characterized by degree-degree dependencies between neighboring nodes. In assortative networks, the degree-degree dependencies are positive (nodes with similar
Quantitative modeling of degree-degree correlation in complex networks
Niño, Alfonso
2013-01-01
This paper presents an approach to the modeling of degree-degree correlation in complex networks. Thus, a simple function, \\Delta(k', k), describing specific degree-to- degree correlations is considered. The function is well suited to graphically depict assortative and disassortative variations within networks. To quantify degree correlation variations, the joint probability distribution between nodes with arbitrary degrees, P(k', k), is used. Introduction of the end-degree probability function as a basic variable allows using group theory to derive mathematical models for P(k', k). In this form, an expression, representing a family of seven models, is constructed with the needed normalization conditions. Applied to \\Delta(k', k), this expression predicts a nonuniform distribution of degree correlation in networks, organized in two assortative and two disassortative zones. This structure is actually observed in a set of four modeled, technological, social, and biological networks. A regression study performed...
Rethinking the Bachelor Degree Course
DEFF Research Database (Denmark)
Toft, Anne Elisabeth; Gammelgaard Nielsen, Anders
2011-01-01
The text contains reflections on the background for rethinking the bachelor degree course at the Aarhus School of Architecture.......The text contains reflections on the background for rethinking the bachelor degree course at the Aarhus School of Architecture....
Foundation Degrees: A Risky Business?
Rowley, Jennifer
2005-01-01
Purpose: Foundation degrees, the new proposal for sub-degree vocational education in the UK, are characterised by innovation both in their design (curriculum, teaching, learning and assessment) and in the marketplace for which they are designed. This article argues that the development and delivery of foundation degrees carry a high level of risk,…
Degree-degree correlations in random graphs with heavy-tailed degrees
Litvak, Nelli; van der Hofstad, Remco
2012-01-01
We investigate degree-degree correlations for scale-free graph sequences. The main conclusion of this paper is that the assortativity coefficient is not the appropriate way to describe degree-dependences in scale-free random graphs. Indeed, we study the infinite volume limit of the assortativity
Degree-degree correlations in random graphs with heavy-tailed degrees
Litvak, Nelli; van der Hofstad, Remco
2012-01-01
We investigate degree-degree correlations for scale-free graph sequences. The main conclusion of this paper is that the assortativity coefficient is not the appropriate way to describe degree-dependences in scale-free random graphs. Indeed, we study the infinite volume limit of the assortativity coe
Graduate Physics Degrees: Largest Departments and Degree Distribution. Focus On
Mulvey, Patrick J.; Nicholson, Starr
2014-01-01
In the 2011-12 academic year there were 751 degree-granting physics departments in the U.S. Of these, 195 offered a PhD and 62 departments offered a master's as the highest physics degree. The remaining 494 departments offered a bachelor's as their highest physics degree. There were six universities that had two doctoral-granting physics…
Degree Depreciation: A Fait Accompli for the Liberal Arts Degree
Duplass, James A.
1976-01-01
The liberal arts degree will continue to lack the credibility needed to compete with professional school degrees in the job market unless a return is made to rigourous standards, subjective tests, term papers, comprehensive exams, improvement in instructional methods, and more stringent curriculum requirements for foreign language, composition,…
Research Degrees as Professional Education?
Barnacle, Robyn; Dall'Alba, Gloria
2011-01-01
There is an increasing trend within higher education and, more specifically, in higher degrees by research, to treat a professional skills set as a desirable graduate outcome. The increasing value that is being placed on a professional skills set in large part reflects growing interest around the world in the role of research degrees in labour…
Directory of Open Access Journals (Sweden)
2006-01-01
Full Text Available The maps of the form f( x = ∑ i=1 n a i ⋅x⋅ b i , called 1-degree maps, are introduced and investigated. For noncommutative algebras and modules over them 1-degree maps give an analogy of linear maps and differentials. Under some conditions on the algebra 𝒜 , contractibility of the group of 1-degree isomorphisms is proved for the module l 2 ( 𝒜 . It is shown that these conditions are fulfilled for the algebra of linear maps of a finite-dimensional linear space. The notion of 1-degree map gives a possibility to define a nonlinear Fredholm map of l 2 ( 𝒜 and a Fredholm manifold modelled by l 2 ( 𝒜 . 1-degree maps are also applied to some problems of Markov chains.
HadISST (1-degree)/HadISST (1-degree)
National Oceanic and Atmospheric Administration, Department of Commerce — Monthly version of HadISST sea surface temperature component (1-degree). See Rayner, N. A., Parker, D. E., Horton, E. B., Folland, C. K., Alexander, L. V., Rowell,...
Degree-degree correlations in directed networks with heavy-tailed degrees
Hoorn, van der Pim; Litvak, Nelly
2013-01-01
In network theory, Pearson's correlation coefficients are most commonly used to measure the degree assortativity of a network. We investigate the behavior of these coefficients in the setting of directed networks with heavy-tailed degree sequences. We prove that for graphs where the in- and out-degr
Degree-degree dependencies in directed networks with heavy-tailed degrees
Hoorn, van der Pim; Litvak, Nelly
2015-01-01
In network theory, Pearson’s correlation coefficients are most commonly used to measure the degree assortativity of a network. We investigate the behavior of these coefficients in the setting of directed networks with heavy-tailed degree sequences. We prove that for graphs where the in- and out-degr
Killing Horizons Kill Horizon Degrees
Bergamin, L.; Grumiller, D.
Frequently, it is argued that the microstates responsible for the Bekenstein-Hawking entropy should arise from some physical degrees of freedom located near or on the black hole horizon. In this essay, we elucidate that instead entropy may emerge from the conversion of physical degrees of freedom, attached to a generic boundary, into unobservable gauge degrees of freedom attached to the horizon. By constructing the reduced phase space, it can be demonstrated that such a transmutation indeed takes place for a large class of black holes, including Schwarzschild.
Killing horizons kill horizon degrees
Bergamin, L
2006-01-01
Frequently it is argued that the microstates responsible for the Bekenstein-Hawking entropy should arise from some physical degrees of freedom located near or on the black hole horizon. In this Essay we elucidate that instead entropy may emerge from the conversion of physical degrees of freedom, attached to a generic boundary, into unobservable gauge degrees of freedom attached to the horizon. By constructing the reduced phase space it can be demonstrated that such a transmutation indeed takes place for a large class of black holes, including Schwarzschild.
Berg, Gary A.; Tollefson, Kaia
2014-01-01
The percentage of Latinas/os decreases at each stage in the educational pipeline and is especially proportionally low at the post-baccalaureate level. This study investigates the complexities of the quest to increase post-baccalaureate participation for Latina/o students. We present data on post-baccalaureate education by utilizing 2 comprehensive…
On degree-degree correlations in multilayer networks
de Arruda, Guilherme Ferraz; Moreno, Yamir; Rodrigues, Francisco A
2015-01-01
We propose a generalization of the concept of assortativity based on the tensorial representation of multilayer networks, covering the definitions given in terms of Pearson and Spearman coefficients. Our approach can also be applied to weighted networks and provides information about correlations considering pairs of layers. By analyzing the multilayer representation of the airport transportation network, we show that contrasting results are obtained when the layers are analyzed independently or as an interconnected system. Finally, we study the impact of the level of assortativity and heterogeneity between layers on the spreading of diseases. Our results highlight the need of studying degree-degree correlations on multilayer systems, instead of on aggregated networks.
On degree-degree correlations in multilayer networks
de Arruda, Guilherme Ferraz; Cozzo, Emanuele; Moreno, Yamir; Rodrigues, Francisco A.
2016-06-01
We propose a generalization of the concept of assortativity based on the tensorial representation of multilayer networks, covering the definitions given in terms of Pearson and Spearman coefficients. Our approach can also be applied to weighted networks and provides information about correlations considering pairs of layers. By analyzing the multilayer representation of the airport transportation network, we show that contrasting results are obtained when the layers are analyzed independently or as an interconnected system. Finally, we study the impact of the level of assortativity and heterogeneity between layers on the spreading of diseases. Our results highlight the need of studying degree-degree correlations on multilayer systems, instead of on aggregated networks.
Life after a Humanities Degree
Masola, Athambile
2016-01-01
This article explores the experiences of a humanities graduate after leaving the academy. The author considers her own education in light of the historical changes in South Africa's education system. The article is a personal account of the questions and challenges encountered in choosing a humanities degree in a context where a tertiary education…
Aerospace Technology (Aerospace Engineering Degree)
Tiseira Izaguirre, Andrés Omar; Blanco Rodríguez, David; Carreres Talens, Marcos; Fajardo Peña, Pablo
2013-01-01
Apuntes de la asignatura Tecnología Aeroespacial Tiseira Izaguirre, AO.; Blanco Rodríguez, D.; Carreres Talens, M.; Fajardo Peña, P. (2013). Aerospace Technology (Aerospace Engineering Degree). Editorial Universitat Politècnica de València. http://hdl.handle.net/10251/35263.
The Top Theological Degree Producers
Diverse: Issues in Higher Education, 2012
2012-01-01
Each year, "Diverse: Issues in Higher Education" publishes a list of the Top 100 producers of associate, bachelor's and graduate degrees awarded to minority students based on research conducted by Dr. Victor M. H. Borden, professor of educational leadership and policy studies at Indiana University Bloomington. This year, for the first…
Real Analytic Machines and Degrees
Gärtner, Tobias; 10.4204/EPTCS.24.12
2010-01-01
We study and compare in two degree-theoretic ways (iterated Halting oracles analogous to Kleene's arithmetical hierarchy and the Borel hierarchy of descriptive set theory) the capabilities and limitations of three models of analytic computation: BSS machines (aka real-RAM) and strongly/weakly analytic machines as introduced by Hotz et. al. (1995).
Vann, Charles S.
1999-01-01
This small, non-contact optical sensor increases the capability and flexibility of computer controlled machines by detecting its relative position to a workpiece in all six degrees of freedom (DOF). At a fraction of the cost, it is over 200 times faster and up to 25 times more accurate than competing 3-DOF sensors. Applications range from flexible manufacturing to a 6-DOF mouse for computers. Until now, highly agile and accurate machines have been limited by their inability to adjust to changes in their tasks. By enabling them to sense all six degrees of position, these machines can now adapt to new and complicated tasks without human intervention or delay--simplifying production, reducing costs, and enhancing the value and capability of flexible manufacturing.
Degree 3 Networks Topological Routing
DEFF Research Database (Denmark)
Gutierrez Lopez, Jose Manuel; Riaz, M. Tahir; Pedersen, Jens Myrup;
2009-01-01
Topological routing is a table free alternative to traditional routing methods. It is specially well suited for organized network interconnection schemes. Topological routing algorithms correspond to the type O(1), constant complexity, being very attractive for large scale networks. It has been...... proposed for many topologies and this work compares the algorithms for three degree three topologies using a more analytical approach than previous studies....
Honorary Degree Congregation in Cambridge
Institute of Scientific and Technical Information of China (English)
2006-01-01
One day in mid-June 2006 when I was on a visit to the Countryside Restoration Trust at Barton near Cambridge, Mr. Christopher Stevenson, the director of Program of Events for Newcomers & Academic Visitors, gave me a letter enclosing a notice and a ticket I booked nearly two months earlier. He told me that I was very lucky because a strictly limited number of tickets had been allocated to academic visitors. It was a ticket to admit me to the Honorary Degree Congregation and to the reception afterwards on Tuesday 27 June.
Shaw, Kathy; Harpin, Scott; Steinke, Geraldine; Stember, Marilyn; Krajicek, Marilyn
2017-03-01
Strong professional priorities, evolving Affordable Care Act requirements, and a significantly limited public health nursing workforce prompted the University of Colorado College of Nursing to collaborate with the School of Public Health to implement one of the first Doctor of Nursing Practice/Master of Public Health dual degree programs in the nation. Federal grant funding supported the development, implementation, and evaluation of this unique post-baccalaureate dual degree program, for which there were no roadmaps, models, or best practices to follow. Several key issues emerged that serve as lessons learned in creating a new, novel higher education pathway for Advanced Public Health Nursing. This paper highlights two of those: (1) marketing, admission, and matriculation across two programs, and (2) enhancing curricula through distance coursework and interprofessional education. When collaboration with a school of public health is possible, the Doctor of Nursing Practice/Master of Public Health dual degree is an efficient way to prepare public health nurses' with the highest level of public health knowledge, practice, and leadership expertise. © 2016 Wiley Periodicals, Inc.
Opposite Degree Algorithm and Its Applications
Xiao-Guang Yue
2015-01-01
The opposite (Opposite Degree, referred to as OD) algorithm is an intelligent algorithm proposed by Yue Xiaoguang et al. Opposite degree algorithm is mainly based on the concept of opposite degree, combined with the idea of design of neural network and genetic algorithm and clustering analysis algorithm. The OD algorithm is divided into two sub algorithms, namely: opposite degree - numerical computation (OD-NC) algorithm and opposite degree - Classification computation (OD-CC) algorithm.
Extended degree functions and monomial modules
2004-01-01
The arithmetic degree, the smallest extended degree, and the homological degree are invariants that have been proposed as alternatives of the degree of a module if this module is not Cohen-Macaulay. We compare these degree functions and study their behavior when passing to the generic initial or the lexicographic submodule. This leads to various bounds and to counterexamples to a conjecture of Gunston and Vasconcelos, respectively. Particular attention is given to the class of sequentially Co...
Opposite Degree Algorithm and Its Applications
Directory of Open Access Journals (Sweden)
Xiao-Guang Yue
2015-12-01
Full Text Available The opposite (Opposite Degree, referred to as OD algorithm is an intelligent algorithm proposed by Yue Xiaoguang et al. Opposite degree algorithm is mainly based on the concept of opposite degree, combined with the idea of design of neural network and genetic algorithm and clustering analysis algorithm. The OD algorithm is divided into two sub algorithms, namely: opposite degree - numerical computation (OD-NC algorithm and opposite degree - Classification computation (OD-CC algorithm.
General N-th Degree Stochastic Dominance
Institute of Scientific and Technical Information of China (English)
张顺明
2001-01-01
This paper examines N-th degree stochastic dominance which isused to compare the risk factor of risky assets after summarizing the definitions of first degree stochastic dominance and second degree stochastic dominance. The paper defines general N-th degree stochastic dominance, presents a sufficient and necessary condition which is the equivalent theorem of general N-th degree stochastic dominance. The feasible utility form is constructed to explain the economic meaning of N-th degree stochastic dominance in the field of financial economics. The equivalent condition is described by the probability distribution functions of risky assets, which are not related to utility functions (preference relations).
The Complex Case of Positioning the Foundation Degree: Making Sense of a Degree That Is Not a Degree
Kadembo, Ernest
2008-01-01
The Foundation degree was launched in 2001 and has enjoyed growth but remains a controversial qualification. Foundation Degree Forward, the body charged by the UK government with providing a "national network or expertise to support the development and validation of high-quality Foundation degrees" is championing the marketing of the…
Networks with superfat-tailed degree distributions
Timár, Gábor; Mendes, José Fernando F
2016-01-01
A majority of studied models for scale-free networks have degree distributions with exponents greater than $2$. Real networks, however, can demonstrate essentially more heavy-tailed degree distributions. We explore two models of scale-free equilibrium networks that have the degree distribution exponent $\\gamma = 1$, $P(q) \\sim q^{-\\gamma}$. Such "superfat-tailed" degree distributions can be identified in empirical data only if the mean degree of a network is sufficiently high. Our models exploit a rewiring mechanism. They are local in the sense that no knowledge of the network structure, apart from the immediate neighbourhood of the vertices, is required. These models generate uncorrelated networks in the infinite size limit, where they are solved explicitly. We investigate finite size effects by the use of simulations. We find that both models exhibit disassortative degree-degree correlations for finite network sizes. In addition, we observe a markedly degree-dependent clustering in the finite networks. We i...
Determination of Even Degree of Animal Population
Institute of Scientific and Technical Information of China (English)
SongRen－xue; YangYun－qing
1999-01-01
The even degree of animal population is generlay measured by the coefficient of variation of major economic characters.Facing the coefficient of variation,a statistic with complex properties,we achieved indirectly the determination of confidence interval for even degree of an animal population by analysing the reciprocal of the statistic.The sample size which is suitable to the determination of the even degree of an animal population was probed into within the extent of permissive estimation error.
Determination of Even Degree of Animal Population
Institute of Scientific and Technical Information of China (English)
无
1999-01-01
The even degree of animal population is generlay measured by the coefficient of variation of major eco- nomic characters. Facing the coefficient of variation,a statistic with complex properties,we achieved indirectly the determination of confidence interval for even degree of an animal population by analysing the reciprocal of the statistic. The sample size which is suitable to the determination of the even degree of an animal population was probed into within the extent of permissive estimation error.
Degree of Competition of Consumer Loan Industry
Kohei Kubota; Yoshiro Tsutsui
2008-01-01
The purpose of this paper is to estimate the degree of competition of consumer loan industry in Japan utilizing responses to a questionnaire survey conducted by Japan Consumer Finance Association. Estimating the cost function, we found that the industry is characterized by large scale economies. Estimation of Lerner index, H-statistics, degree of noncompetition, and degree of collusion reveals that consumer loan market is highly monopolistic. Consumer loan companies answered to a question tha...
Degree-layer theory of network topology
Zhou, Bin; Zhe, He
2014-01-01
The network topology can be described by the number of nodes and the interconnections among them. The degree of a node in a network is the number of connections it has to other nodes and the degree distribution is the probability distribution of these degrees over the whole network. Therefore, the degree is very important structural parameter of network topology. However, given the number of nodes and the degree of each node in a network, the topology of the network cannot be determined. Therefore, we propose the degree-layer theory of network topology to describe deeply the network topology. First, we propose the concept of degree-tree with the breadth-first search tree. The degrees of all nodes are layered and have a hierarchical structure. Second,the degree-layer theory is described in detail. Two new concepts are defined in the theory. An index is proposed to quantitatively distinguish the two network topologies. It also can quantitatively measure the stability of network topology built by a model mechani...
Cooperation in an evolutionary prisoner's dilemma on networks with degree-degree correlations.
Devlin, Stephen; Treloar, Thomas
2009-08-01
We study the effects of degree-degree correlations on the success of cooperation in an evolutionary prisoner's dilemma played on a random network. When degree-degree correlations are not present, the standardized variance of the network's degree distribution has been shown to be an accurate analytical measure of network heterogeneity that can be used to predict the success of cooperation. In this paper, we use a local-mechanism interpretation of standardized variance to give a generalization to graphs with degree-degree correlations. Two distinct mechanisms are shown to influence cooperation levels on these types of networks. The first is an intrinsic measurement of base-line heterogeneity coming from the network's degree distribution. The second is the increase in heterogeneity coming from the degree-degree correlations present in the network. A strong linear relationship is found between these two parameters and the average cooperation level in an evolutionary prisoner's dilemma on a network.
New High in Engineering Degree Production. Facts
Connecticut Department of Higher Education (NJ1), 2010
2010-01-01
Several of the state's key industry sectors depend heavily on employees with advanced scientific, analytic and technical knowledge. Among the fields closely related to these sectors, engineering degrees have posted the largest gain. This paper presents details on the following facts: (1) 2009 represented a record high for engineering degrees; (2)…
Competency-Based Business Degree. Issue Brief
Washington State Board for Community and Technical Colleges, 2014
2014-01-01
In January 2015, thirteen Washington community colleges launched an online, competency-based business transfer degree--the first in the state's community and technical college system. This issue brief provides answers to commonly asked questions about the new competency-based degree.
Master's Degree Studies: Expectations versus Reality
Swanepoel, C. H.
2010-01-01
During the past two decades, higher education in South Africa has been affected drastically by transformation. An issue that has specifically been influenced is master's degrees. A significant increase in the demand for access to course work master's degrees has been experienced, while universities themselves have been confronted with a new…
Experiencing Higher Degree Research Supervision as Teaching
Bruce, Christine; Stoodley, Ian
2013-01-01
This article describes higher degree research supervisors' experiences of supervision as teaching. While research education is considered central to the higher degree research experience, comparatively little is known to date of the teaching lenses adopted by supervisors as they go about their supervision. We worked with 35 supervisors engaged in…
The Topological Degree in Ordered Banach Spaces
Institute of Scientific and Technical Information of China (English)
Adrian DUMA; Ileana DUMA
2008-01-01
This paper is devoted to the applications of classical topological degrees to nonlinear problems involving various classes of operators acting between ordered Banach spaces. In this frame-work, the Leray-Schauder, Browder-Petryshyn, and Amann-Weiss degree theories are considered, and several existence results are obtained. The non-Archimedean case is also discussed.
Powers of the degree of coherence.
Mei, Zhangrong; Korotkova, Olga; Mao, Yonghua
2015-04-01
We establish conditions under which a legitimate degree of coherence of a statistically stationary beam-like field raised to a power results in a novel legitimate degree of coherence. The general results and examples relate to scalar beams having uniform and non-uniform correlations.
Nuclear Engineering Enrollments and Degrees, 1982.
Sweeney, Deborah H.; And Others
This report presents data on the number of students enrolled and the number of bachelor's, master's, and doctoral degrees awarded in academic year 1981-82 from 72 United States institutions offering degree programs in nuclear engineering or nuclear options within other engineering fields. Presented as well are historical data for the last decade…
Infinite-degree-corrected stochastic block model
DEFF Research Database (Denmark)
Herlau, Tue; Schmidt, Mikkel Nørgaard; Mørup, Morten
2014-01-01
In stochastic block models, which are among the most prominent statistical models for cluster analysis of complex networks, clusters are defined as groups of nodes with statistically similar link probabilities within and between groups. A recent extension by Karrer and Newman [Karrer and Newman......, Phys. Rev. E 83, 016107 (2011)] incorporates a node degree correction to model degree heterogeneity within each group. Although this demonstrably leads to better performance on several networks, it is not obvious whether modeling node degree is always appropriate or necessary. We formulate the degree...... corrected stochastic block model as a nonparametric Bayesian model, incorporating a parameter to control the amount of degree correction that can then be inferred from data. Additionally, our formulation yields principled ways of inferring the number of groups as well as predicting missing links...
On Second Order Degree of Graphs
Institute of Scientific and Technical Information of China (English)
Gabriela ARAUJO-PARDO; Camino BALBUENA; Mika OLSEN; Pilar VALENCIA
2012-01-01
Given a vertex v of a graph G the second order degree of v denoted as d2 (v) is defined as the number of vertices at distance 2 from v.In this paper we address the following question:What are the sufficient conditions for a graph to have a vertex v such that d2(v) ≥ d(v),where d(v) denotes the degree of v? Among other results,every graph of minimum degree exactly 2,except four graphs,is shown to have a vertex of second order degree as large as its own degree.Moreover,every K-4-free graph or every maximal planar graph is shown to have a vertex v such that d2(v) ≥ d(v).Other sufficient conditions on graphs for guaranteeing this property are also proved.
Rough similarity degree and rough close degree in rough fuzzy sets and the applications
Institute of Scientific and Technical Information of China (English)
Li Jian; Xu Xiaojing; Shi Kaiquan
2008-01-01
Based on rough similarity degree of rough sets and close degree of fuzzy sets,the definitions of rough similarity degree and rough close degree of rough fuzzy sets are given,which can be used to measure the similar degree between two rough fuzzy sets.The properties and theorems are listed.Using the two new measures,the method of clustering in the rough fuzzy system can be obtained.After clustering,the new fuzzy sample can be recognized by the principle of maximal similarity degree.
The Transcendence Degree over a Ring
Kemper, Gregor
2011-01-01
For a finitely generated algebra over a field, the transcendence degree is known to be equal to the Krull dimension. The aim of this paper is to generalize this result to algebras over rings. A new definition of the transcendence degree of an algebra A over a ring R is given by calling elements of A algebraically dependent if they satisfy an algebraic equation over R whose trailing coefficient, with respect to some monomial ordering, is 1. The main result is that for a finitely generated algebra over a Noetherian Jacobson ring, the transcendence degree is equal to the Krull dimension.
Branding the bio/biomedical engineering degree.
Voigt, Herbert F
2011-01-01
The future challenges to medical and biological engineering, sometimes referred to as biomedical engineering or simply bioengineering, are many. Some of these are identifiable now and others will emerge from time to time as new technologies are introduced and harnessed. There is a fundamental issue regarding "Branding the bio/biomedical engineering degree" that requires a common understanding of what is meant by a B.S. degree in Biomedical Engineering, Bioengineering, or Biological Engineering. In this paper we address some of the issues involved in branding the Bio/Biomedical Engineering degree, with the aim of clarifying the Bio/Biomedical Engineering brand.
Degrees of Truthfulness in Accepted Scientific Claims
National Research Council Canada - National Science Library
Ahmed Hassan Mabrouk
2008-01-01
...";">: Sciences adopt different methodologies in deriving claims and establishing theories. As a result, two accepted claims or theories belonging to two different sciences may not necessarily carry the same degree of truthfulness...
Degrees of Curves in Abelian Varieties
Debarre, O
1992-01-01
The degree of a curve $C$ in a polarized abelian variety $(X,\\lambda)$ is the integer $d=C\\cdot\\lambda$. When $C$ generates $X$, we find a lower bound on $d$ which depends on $n$ and the degree of the polarization $\\lambda$. The smallest possible degree is $d=n$ and is obtained only for a smooth curve in its Jacobian with its principal polarization (Ran, Collino). The cases $d=n+1$ and $d=n+2$ are studied. Moreover, when $X$ is simple, it is shown, using results of Smyth on the trace of totally positive algebraic integers, that if $d\\le 1.7719\\, n$, then $C$ is smooth and $X$ is isomorphic to its Jacobian. We also get an upper bound on the geometric genus of $C$ in terms of its degree.
The Doctor of Physical Therapy Degree: A New Curriculum for a New Degree
Rapport, Mary Jane K.; Stelzner, Denise; Rodriguez, Jenny
2007-01-01
By 2020, all graduates of accredited physical therapy programs will receive the Doctor of Physical Therapy (DPT) degree. Bachelor degrees in physical therapy are no longer granted, and over 83% (N = 176 accredited programs) of the entry-level physical therapy education programs already grant the DPT degree. The purpose of this article is to…
Twelfth degree spline with application to quadrature.
Mohammed, P O; Hamasalh, F K
2016-01-01
In this paper existence and uniqueness of twelfth degree spline is proved with application to quadrature. This formula is in the class of splines of degree 12 and continuity order [Formula: see text] that matches the derivatives up to order 6 at the knots of a uniform partition. Some mistakes in the literature are pointed out and corrected. Numerical examples are given to illustrate the applicability and efficiency of the new method.
[Hemodynamic changes in myopia of different degrees].
Mamikonian, V R; Shmeleva-Demir, O A; Kharlap, S I; Andzhelova, D V; Kazarian, E E; Makashova, N V; Galoian, N S; Mazurova, Iu V; Tatevosian, A A; Karapetian, A T
2013-01-01
A total of 78 patients (143 eyes) with low, medium and high degree myopia were assessed. Apart from standard ophthalmological tests, flowmetry and duplex ultrasound of ocular vessels were performed in all cases to evaluate volumetric and velocity parameters of ocular blood flow in relation to the length of anterior-posterior axis and the degree of myopia. It is found that both parameters of regional blood flow progressively decrease as the anterior-posterior axis increases.
Quantification of modulation degree for VMAT
Energy Technology Data Exchange (ETDEWEB)
Park, Jong Min; Park, So Yeon; Wu, Hong Gyun; Kim, Jin Ho; Ye, Sung Joon [Dept. of Radiation Oncology, Seoul National University Hospital, Seoul (Korea, Republic of); Carkson, Joel [Program in Biomedical Radiation Sciences, Dept. of Transdisciplinary Studies, Seoul National University Graduate School of Convergence Science and Technology, Seoul (Korea, Republic of)
2014-11-15
The aim of this study is to quantify the degree of modulation by presenting a modulation index (MI) for volumetric modulated arc therapy (VMAT) based on the speed and acceleration analysis of modulating-parameters such as multi-leaf collimator (MLC) movements, gantry rotation and dose-rate, comprehensively, as well as by performing texture analysis on fluence maps. The MIt showed good performance for the evaluation of the modulation-degree of VMAT plans showing highest correlations to the plan deliverability.
Interplay of degree correlations and cluster synchronization
Jalan, Sarika; Kumar, Anil; Zaikin, Alexey; Kurths, Jürgen
2016-12-01
We study the evolution of coupled chaotic dynamics on networks and investigate the role of degree-degree correlation in the networks' cluster synchronizability. We find that an increase in the disassortativity can lead to an increase or a decrease in the cluster synchronizability depending on the degree distribution and average connectivity of the network. Networks with heterogeneous degree distribution exhibit significant changes in cluster synchronizability as well as in the phenomena behind cluster synchronization as compared to those of homogeneous networks. Interestingly, cluster synchronizability of a network may be very different from global synchronizability due to the presence of the driven phenomenon behind the cluster formation. Furthermore, we show how degeneracy at the zero eigenvalues provides an understanding of the occurrence of the driven phenomenon behind the synchronization in disassortative networks. The results demonstrate the importance of degree-degree correlations in determining cluster synchronization behavior of complex networks and hence have potential applications in understanding and predicting dynamical behavior of complex systems ranging from brain to social systems.
The Post-Baccalaureate Perceptions of Psychology Alumni
Landrum, R. Eric; Elison-Bowers, P.
2009-01-01
Faculty members from 7 Departments of Psychology distributed a link to an online survey to their psychology alumni in order to ascertain alumni opinions about college courses, impact of student clubs, value of the undergraduate degree, beliefs about the department, and measures of global satisfaction. These variables were examined in conjunction…
Why do different people choose different university degrees? Motivation and the choice of degree
Skatova, Anya; Ferguson, Eamonn
2014-01-01
Different people choose undergraduate degrees to study at university for different reasons. To date, there have been limited attempts to identify individual differences in motivation that drive undergraduate degree choice. We identified that people choose university degrees for four reasons: career concerns (Career), intrinsic interest in the subject (Interest), an opportunity to help others (Helping) and because they are looking for an easy option to get into higher education (Loafing). We investigated whether these motivations apply to the choice of undergraduate degree in two samples: (1) undergraduate (N = 989) and (2) prospective (N = 896) students. We developed the Motivations Influencing Course Choice (MICC) questionnaire to measure these motivations. Scales of Helping, Career, Loafing, and Interest showed good psychometric properties, showed validity with respect to general life goals and personality traits, and predicted actual and prospective degree choices. We demonstrated that medical degrees were chosen due to a mixture of Helping and Career, while engineering degrees were associated with Career and low Interest in the degree. The choice of arts and humanities degrees was driven by Interest and low concern about future career, accompanied with high Loafing. We also demonstrated gender differences: females were high in Helping (both samples) and Interest (only in the undergraduate sample) motivation, while males scored higher in Career (only in the undergraduate sample) and Loafing (both samples). The findings can feed into both theoretical accounts of proximal motivation as well as provide help to improve degree programmes at universities and support better career advice. PMID:25431561
Why do different people choose different university degrees? Motivation and the choice of degree
Directory of Open Access Journals (Sweden)
Anya eSkatova
2014-11-01
Full Text Available Different people choose which undergraduate degree to study at the university for different reasons. To date, there have been limited attempts to identify individual differences in motivation that drive the undergraduate degree choice. We identified that people choose university degrees for four reasons: career concerns (Career, intrinsic interest (Interest in the subject, an opportunity to help others (Helping and because they are looking for an easy option into higher education (Loafing. We investigated whether these motivation apply to the choice of undergraduate degree in two samples: (1 undergraduate (N = 989 and (2 prospective (N = 896 students. We developed the Motivations Influencing Course Choice (MICC questionnaire to measure these motivations. Scales of Helping, Career, Loafing and Interest showed good psychometric properties, showed validity with respect to general life goals and personality traits, and predicted actual and prospective degree choices. We demonstrated that medical degrees were chosen due to a mixture of Helping and Career, while engineering degrees were associated with Career and low interest in the degree. The choice of art and humanities degrees was driven by Interest and low concern about future career, accompanied with high Loafing. We also demonstrated gender differences: females were high in Helping (both samples and Interest (only in undergraduate sample motivation, while males scored higher in Career (only in undergraduate sample and Loafing (both samples. The findings can feed into both theoretical accounts of proximal motivation as well as help to improve degree programmes at universities and provide better career advice.
Decoherence of rotational degrees of freedom
Zhong, Changchun; Robicheaux, F.
2016-11-01
The mechanism of decoherence for a mesoscopic quantum system with rotational degrees of freedom is studied. From a simple model of elastic scattering, we show that the nondiagonal density-matrix elements of the system exponentially decay. The decay rate depends on the difference of scattering amplitudes for different rotational configurations, leading to the gradual loss of quantum coherence between the pointer states in the orientational space. For a dielectric ellipsoid immersed in a photon-gas environment (assuming no absorption), the decay rate is found to be proportional to the seventh power of the temperature. For an ellipsoidal object interacting with massive particles, the decay rate is proportional to the 5/2 power of the temperature. Both are different from the case of translational decoherence induced by the same environment scattering. For photon scattering, the coherence time in the rotational degrees of freedom is shown to be much shorter than that in the translational degrees of freedom.
Market Orientation and Degree of Novelty
Directory of Open Access Journals (Sweden)
Mateja Bodlaj
2011-03-01
Full Text Available This study aims to examine the relationship between a responsive and aproactive market orientation and the degree of novelty. Data obtainedvia an Internet survey were analysed using structural equation modelling.An analysis of 325 Slovenian firms reveals that only a proactivemarket orientation is positively related to the degree of novelty. Whilethere is no evidence of statistically significant differences in the examinedrelationships given the firm size and environmental characteristics,separate analyses in each group indicate that a proactive market orientationmay be more important for small firms and firms operatingamidst a higher level of technological turbulence. This study suggeststhat a distinction between a responsive and a proactive market orientationis important for a better understanding of the effect of a marketorientation on the degree of novelty.
Node degree distribution in spanning trees
Pozrikidis, C.
2016-03-01
A method is presented for computing the number of spanning trees involving one link or a specified group of links, and excluding another link or a specified group of links, in a network described by a simple graph in terms of derivatives of the spanning-tree generating function defined with respect to the eigenvalues of the Kirchhoff (weighted Laplacian) matrix. The method is applied to deduce the node degree distribution in a complete or randomized set of spanning trees of an arbitrary network. An important feature of the proposed method is that the explicit construction of spanning trees is not required. It is shown that the node degree distribution in the spanning trees of the complete network is described by the binomial distribution. Numerical results are presented for the node degree distribution in square, triangular, and honeycomb lattices.
Developing 360 degree feedback system for KINS
Energy Technology Data Exchange (ETDEWEB)
Han, In Soo; Cheon, B. M.; Kim, T. H.; Ryu, J. H. [Chungman National Univ., Daejeon (Korea, Republic of)
2003-12-15
This project aims to investigate the feasibility of a 360 degree feedback systems for KINS and to design guiding rules and structures in implementing that systems. Literature survey, environmental analysis and questionnaire survey were made to ensure that 360 degree feedback is the right tool to improve performance in KINS. That review leads to conclusion that more readiness and careful feasibility review are needed before implementation of 360 degree feedback in KINS. Further the project suggests some guiding rules that can be helpful for successful implementation of that system in KINS. Those include : start with development, experiment with one department, tie it to a clear organization's goal, train everyone involve, make sure to try that system in an atmosphere of trust.
The Low-Degree Shape of Mercury
Perry, M. E.; Neumann, G. A.; Mazarico, E.; Hauck, S. A., II; Solomon, S. C.; Zuber, M. T.; Smith, D. E.; Phillips, R. J.; Margot, J. L.; Johnson, C. L.; Ernst, C. M.; Oberst, J.
2015-12-01
The shape of Mercury, particularly when combined with its geoid, provides clues to the planet's internal structure, thermal evolution, and rotational history. Twenty-five million elevation measurements of the northern hemisphere, acquired by the Mercury Laser Altimeter on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging spacecraft, were combined with 378 occultation measurements of radio-frequency signals from the spacecraft in the planet's southern hemisphere to reveal the low-degree shape of Mercury. We solved for the spherical-harmonic coefficients through degree and order 128 and found that Mercury's mean radius is 2439.36±0.02 km. The offset between the planet's centers of mass and figure is negligible (40±40 m) along the polar axis and modest (140±50 m) in the equatorial plane. Mercury's spherical-harmonic shape spectrum is dominated by degree 2, and the planet's first-order shape is that of a triaxial ellipsoid with semimajor axes a, b, and c. The polar radius, c, is 1.65 km less than (a+b)/2, and the equatorial difference, a-b, is 1.25 km. The long axis is rotated 15° west of Mercury's dynamically defined principal axis. Mercury's geoid is similarly dominated by degree 2 and well described by a triaxial ellipsoid. The degree-2 geoid and shape are highly correlated, but the power spectral density of the geoid at degree 2 is only 1% of its shape counterpart, implying substantial compensation of elevation variations on a global scale and that Mercury is not in hydrostatic equilibrium.
High-Degree Neurons Feed Cortical Computations.
Directory of Open Access Journals (Sweden)
Nicholas M Timme
2016-05-01
Full Text Available Recent work has shown that functional connectivity among cortical neurons is highly varied, with a small percentage of neurons having many more connections than others. Also, recent theoretical developments now make it possible to quantify how neurons modify information from the connections they receive. Therefore, it is now possible to investigate how information modification, or computation, depends on the number of connections a neuron receives (in-degree or sends out (out-degree. To do this, we recorded the simultaneous spiking activity of hundreds of neurons in cortico-hippocampal slice cultures using a high-density 512-electrode array. This preparation and recording method combination produced large numbers of neurons recorded at temporal and spatial resolutions that are not currently available in any in vivo recording system. We utilized transfer entropy (a well-established method for detecting linear and nonlinear interactions in time series and the partial information decomposition (a powerful, recently developed tool for dissecting multivariate information processing into distinct parts to quantify computation between neurons where information flows converged. We found that computations did not occur equally in all neurons throughout the networks. Surprisingly, neurons that computed large amounts of information tended to receive connections from high out-degree neurons. However, the in-degree of a neuron was not related to the amount of information it computed. To gain insight into these findings, we developed a simple feedforward network model. We found that a degree-modified Hebbian wiring rule best reproduced the pattern of computation and degree correlation results seen in the real data. Interestingly, this rule also maximized signal propagation in the presence of network-wide correlations, suggesting a mechanism by which cortex could deal with common random background input. These are the first results to show that the extent to
360-degree feedback for medical trainees
DEFF Research Database (Denmark)
Holm, Ellen; Holm, Kirsten; Sørensen, Jette Led
2015-01-01
In 360-degree feedback medical colleagues and collaborators give a trainee feedback by answering a questionnaire on behaviour of the trainee. The questionnaire may contain questions answered on a scale or/and they may contain open questions. The result from 360-degree feedback is used for formative...... feedback and assessment. In order to secure reliability 8-15 respondents are needed. It is a matter of discussion whether the respondents should be chosen by the trainee or by a third part, and if respondents should be anonymous. The process includes a feedback session with a trained supervisor....
Brain Endogenous Feedback and Degrees of Consciousness
DEFF Research Database (Denmark)
Carrara-Augustenborg, Claudia; Pereira Jr., Alfredo
2012-01-01
positive and negative feedback loops. Variable levels of consciousness are proposed to depend on the degree of resonance between these networks. The resonance can occur in the absence of salient external stimulation and, even when such stimulation occurs, the response of the coupled networks is always......We present a hypothesis to explain how the brain operates to generate different degrees of consciousness. We relate our model to recent evidence from brain morphology and physiology, indicating that the central nervous system contains two parallel networks (neuronal and astroglial) establishing...
Ball, Frank; Sirl, David
2012-01-01
A random network model which allows for tunable, quite general forms of clustering, degree correlation and degree distribution is defined. The model is an extension of the configuration model, in which stubs (half-edges) are paired to form a network. Clustering is obtained by forming small completely connected subgroups, and positive (negative) degree correlation is obtained by connecting a fraction of the stubs with stubs of similar (dissimilar) degree. An SIR (Susceptible -> Infective -> Recovered) epidemic model is defined on this network. Asymptotic properties of both the network and the epidemic, as the population size tends to infinity, are derived: the degree distribution, degree correlation and clustering coefficient, as well as a reproduction number $R_*$, the probability of a major outbreak and the relative size of such an outbreak. The theory is illustrated by Monte Carlo simulations and numerical examples. The main findings are that clustering tends to decrease the spread of disease, the effect of...
Comparison of 360 degrees and 180 degrees data collection in SPECT imaging.
Knesaurek, K
1987-11-01
The problem of using 360 degrees or 180 degrees data sampling techniques in transaxial SPECT imaging is still to be solved. A theoretical point source study for an ideal response detector has shown, for objects which are close enough to the origin of the reconstructed area, that there are significant differences between sections obtained by different sampling methods. A computer simulation study of line sources in a homogeneous attenuated medium has confirmed the results of clinical studies in which significant image distortion has been observed in 180 degrees sections but not in 360 degrees reconstructed images.
Degree Compass: The Preferred Choice Approach
Whitten, Leah S.; Sanders, Anthony R.; Stewart, J. Gary
2013-01-01
While engaged in academic reading, a college provost converged on an idea to use a preferential approach to students' selection of college courses, similar to the recommendation ideas based on Netflix and Amazon. The result of this idea came to be known as Degree Compass and was implemented on the campus of Austin Peay State University in 2011.…
Third-Degree Price Discrimination Revisited
Kwon, Youngsun
2006-01-01
The author derives the probability that price discrimination improves social welfare, using a simple model of third-degree price discrimination assuming two independent linear demands. The probability that price discrimination raises social welfare increases as the preferences or incomes of consumer groups become more heterogeneous. He derives the…
Teaching Third-Degree Price Discrimination
Round, David K.; McIver, Ron P.
2006-01-01
Third-degree price discrimination is taught in almost every intermediate microeconomics class. The theory, geometry, and the algebra behind the concept are simple, and the phenomenon is commonly associated with the sale of many of the goods and services used frequently by students. Classroom discussion is usually vibrant as students can relate…
Technical Degrees and Higher Vocational Education
Hordern, Jim
2017-01-01
This paper focuses on the proposals for the introduction of "technical degrees" in English higher education institutions advanced by the Labour Party's Liam Byrne in a document entitled "Robbins Rebooted" which was published in August 2014 by the Social Market Foundation. The context and rationale for the proposed technical…
Perceived Benefits of an Undergraduate Degree
Norton, Cole; Martini, Tanya
2017-01-01
Canadian university students tend to endorse employment-related reasons for attending university ahead of other reasons such as personal satisfaction or intellectual growth. In the present study, first- and fourth-year students from a mid-sized Canadian university reported on the benefits they expected to receive from their degree and rated their…
The Top American Indian Degree Producers
Diverse: Issues in Higher Education, 2012
2012-01-01
Each year, "Diverse: Issues In Higher Education" publishes lists of the Top 100 producers of associate, bachelor's and graduate degrees awarded to minority students based on research conducted by Dr. Victor M.H. Borden, professor of educational leadership and policy studies at the Indiana University Bloomington. This year, Diverse staff…
Purchases of Degrees from Diploma Mills.
Cramer, Robert J.
In response to a request from the Permanent Subcommittee on Investigations of the Senate Committee on Governmental Affairs, the General Accounting Office (GAO) investigated issues concerning the proliferation of "diploma mills," which sell bogus academic degrees based on "life experience" or substandard or negligible work.…
Independence, Odd Girth, and Average Degree
DEFF Research Database (Denmark)
Löwenstein, Christian; Pedersen, Anders Sune; Rautenbach, Dieter;
2011-01-01
We prove several tight lower bounds in terms of the order and the average degree for the independence number of graphs that are connected and/or satisfy some odd girth condition. Our main result is the extension of a lower bound for the independence number of triangle-free graphs of maximum...
Labeling schemes for bounded degree graphs
DEFF Research Database (Denmark)
Adjiashvili, David; Rotbart, Noy Galil
2014-01-01
graphs. Our results complement a similar bound recently obtained for bounded depth trees [Fraigniaud and Korman, SODA 2010], and may provide new insights for closing the long standing gap for adjacency in trees [Alstrup and Rauhe, FOCS 2002]. We also provide improved labeling schemes for bounded degree...
Degrees of Change--Resistance or Resilience.
Marsh, Christine
2001-01-01
Considers issues involved in the change process within organizational culture. Highlights include adopting an appropriate management style; evaluation of performance; aspects of change; implications of change for people management; degrees of change; resistance to change; and an example of planning and implementing a new information technology…
On degree phrases and result clauses
Rijkhoek, Paulien Dea
1998-01-01
This dissertation consists of two parts, one on degree phrases and one on result clauses. Sentence (1) below exemplifies a result clause construction: (1) Zij had zo mooi gezongen dat het publiek er stil van was she has so beautifully sang that the audience there silent of was ‘She had sung so beaut
A six degrees of freedom mems manipulator
de Jong, B.R.
2006-01-01
This thesis reports about a six degrees of freedom (DOF) precision manipulator in MEMS, concerning concept generation for the manipulator followed by design and fabrication (of parts) of the proposed manipulation concept in MEMS. Researching the abilities of 6 DOF precision manipulation in MEMS is
Active Methodology in the Audiovisual Communication Degree
Gimenez-Lopez, J. L.; Royo, T. Magal; Laborda, Jesus Garcia; Dunai, Larisa
2010-01-01
The paper describes the adaptation methods of the active methodologies of the new European higher education area in the new Audiovisual Communication degree under the perspective of subjects related to the area of the interactive communication in Europe. The proposed active methodologies have been experimentally implemented into the new academic…
Physics Bachelor's Degrees: Results from the 2010 Survey of Enrollments and Degrees. Focus On
Mulvey, Patrick J.; Nicholson, Starr
2012-01-01
The Statistical Research Center of the American Institute of Physics conducts an annual census of all degree-granting physics departments in the United States and Puerto Rico. The survey had a 95% response rate from the 751 departments that granted physics bachelor's degrees in the class of 2010. Results show that the number of physics bachelor's…
Mulvey, Patrick; Nicholson, Starr
2014-01-01
Interest in astronomy degrees in the U.S. remains strong, with astronomy enrollments at or near all-time highs for the 2012-13 academic year. The total number of students taking an introductory astronomy course at a degree-granting physics or astronomy department is approaching 200,000. Enrollments in introductory astronomy courses have been…
Lessons Learned: Creating an Online Business Degree from a Successful On-Campus Business Degree
Cordeiro, William P.; Muraoka, Dennis
2015-01-01
The horse has left the barn. Distance education is here to stay and the number of degree programs offered online is growing rapidly. California State University Channel Islands (CI) admitted its first students in 2002, and the undergraduate and graduate degrees in business were among its first program offerings. From its inception, the…
On the relationship between degree of hand-preference and degree of language lateralization
Somers, Metten; Ophoff, Roel A; Boks, Marco P; Fleer, Willemien; de Visser, Kees C L; Kahn, René S; Sommer, Iris E; Aukes, M.F.
2015-01-01
Language lateralization and hand-preference show inter-individual variation in the degree of lateralization to the left- or right, but their relation is not fully understood. Disentangling this relation could aid elucidating the mechanisms underlying these traits. The relation between degree of lang
Degree sequences of k-multi-hypertournaments
Institute of Scientific and Technical Information of China (English)
Pirzada S
2009-01-01
Let n and k (n ≥ k > 1) be two non-negative integers. A k-multi-hypertournament on n vertices is a pair (V, A), where V is a set of vertices with |V|= n, and A is a set of k-tuples of vertices, called arcs, such that for any k-subset S of V, A contains at least one (at most k!) of the k! k-tuples whose entries belong to S. The necessary and sufficient conditions for a non-decreasing sequence of non-negative integers to be the out-degree sequence (in-degree sequence) of some k-multi-hypertournament are given.
An Approach of Degree Constraint MST Algorithm
Directory of Open Access Journals (Sweden)
Sanjay Kumar Pal
2013-08-01
Full Text Available This paper is approaching a new technique of creating Minimal Spanning Trees based on degree constraints of a simple symmetric and connected graph G. Here we recommend a new algorithm based on the average degree sequence factor of the nodes in the graph. The time complexity of the problem is less than O(N log|E| compared to the other existing time complexity algorithms is O(|E| log|E|+C of Kruskal, which is optimum. The goal is to design an algorithm that is simple, graceful, resourceful, easy to understand, and applicable in various fields starting from constraint based network design, mobile computing to other field of science and engineering.
Degree correlations in signed social networks
Ciotti, Valerio; Bianconi, Ginestra; Capocci, Andrea; Colaiori, Francesca; Panzarasa, Pietro
2015-03-01
We investigate degree correlations in two online social networks where users are connected through different types of links. We find that, while subnetworks in which links have a positive connotation, such as endorsement and trust, are characterized by assortative mixing by degree, networks in which links have a negative connotation, such as disapproval and distrust, are characterized by disassortative patterns. We introduce a class of simple theoretical models to analyze the interplay between network topology and the superimposed structure based on the sign of links. Results uncover the conditions that underpin the emergence of the patterns observed in the data, namely the assortativity of positive subnetworks and the disassortativity of negative ones. We discuss the implications of our study for the analysis of signed complex networks.
Degree correlations in signed social networks
Ciotti, Valerio; Capocci, Andrea; Colaiori, Francesca; Panzarasa, Pietro
2014-01-01
We investigate degree correlations in two online social networks where users are connected through different types of links. We find that, while subnetworks in which links have a positive connotation, such as endorsement and trust, are characterized by assortative mixing by degree, networks in which links have a negative connotation, such as disapproval and distrust, are characterized by disassortative patterns. We introduce a class of simple theoretical models to analyze the interplay between network topology and the superimposed structure based on the sign of links. Results uncover the conditions that underpin the emergence of the patterns observed in the data, namely the assortativity of positive subnetworks and the disassortativity of negative ones. We discuss the implications of our study for the analysis of signed complex networks.
Vigilance Degree Computing Based on EEG
Directory of Open Access Journals (Sweden)
Zhenzhong Zhan
2013-09-01
Full Text Available In daily life, lots of work need people maintain higher attention or vigilance. In the early study of vigilance, blink frequency, the impedance of skin, body temperature and blood pressure and other physiological signals was used to estimate the vigilance. EEG signal can more directly reflect the brain's activity than other physiological signals, and EEG signal have a higher time resolution. In this paper, ERP component and different frequencies of EEG were used to analyze the alert state, according to this study, in the ERP components, N170 can be a good representation of the degree of fatigue of the subject; Through the 10 subjects EEG frequency distribution analysis, and according to the formula defined in this paper, the vigilance degree of this ten subjects was calculated.
Degrees of freedom in discrete geometry
Ariwahjoedi, Seramika; Rovelli, Carlo; Zen, Freddy P
2016-01-01
Following recent developments in discrete gravity, we study geometrical variables (angles and forms) of simplices in the discrete geometry point of view. Some of our relatively new results include: new ways of writing a set of simplices using vectorial (differential form) and coordinate-free pictures, and a consistent procedure to couple particles of space, together with a method to calculate the degrees of freedom of the system of 'quanta' of space in the classical framework.
Role Preparation of Associate Degree Graduates.
Stokes, Lillian G.
The role of associate degree nursing (ADN) programs has changed dramatically in their 30 years of existence. The number of ADN graduates increased from 260 in 1954 to 36,434 in 1980, and 47.8% of all nursing graduates in 1980 came from ADN programs, as compared to 0.9% in 1954. These graduates have the best record of employment five years after…
Minimum degree and density of binary sequences
DEFF Research Database (Denmark)
Brandt, Stephan; Müttel, J.; Rautenbach, D.
2010-01-01
For d,k∈N with k ≤ 2d, let g(d,k) denote the infimum density of binary sequences (x)∈{0,1} which satisfy the minimum degree condition σ(x+) ≥ k for all i∈Z with xi=1. We reduce the problem of computing g(d,k) to a combinatorial problem related to the generalized k-girth of a graph G which...
Membrane Triangles with Drilling Degrees of Freedom
Directory of Open Access Journals (Sweden)
P. Fajman
2004-01-01
Full Text Available An accurate triangular plane element with drilling degrees of freedom is shown in this paper. This element can be successfully used for solving linear and nonlinear problems. The main advantage of this element is that the stiffness matrix is obtained from pure deformations – elongations of the edges. This aproach is very suitable for nonlinear analysis, where the unbalanced forces can be obtained directly from elongations of edges.
Evaluation of Fifth Degree Elliptic Singular Moduli
Bagis, Nikos
2012-01-01
Our main result in this article is a formula for the extraction of the solution of the fifth degree modular polynomial equation i.e. the value of $k_{25^nr_0}$, when we know only two consecutive values $k_{r_0}$ and $k_{r_0/25}$. By this way we reduce the problem of solving the depressed equation if we known two consecutive values of the Elliptic singular moduli $k_r$.
Joint Degree Program: the Perspective of Employers
Directory of Open Access Journals (Sweden)
Tatjana Bilevičienė
2013-08-01
Full Text Available Purpose — the purpose of this article is to extend discussion towards the need and importance of joint degree programs in modern universities, introducing the perspective of the employers toward this question. Design/methodology/approach — the research was conducted to analyze the demand of joint degree programs from the perspective of employers, identify weak and strong aspects, opinion and demand for graduates of such programs. To achieve this purpose, a combination of theoretical and empirical methods was chosen: document analysis (previous studies, statistics was conducted and an online qualitative survey was organized. Findings — The analysis of articles, studies and statistics points out the challenges and threats faced by universities nowadays, forcing higher education institutions to find new ways to raise the quality of studies and raise the interest of employers to choose graduates from MRU, as well as the satisfaction of employers with their choice of employees. Theoretical analysis pointed out these challenges and requirements for the modern employee, summarised the challenges in preparation of IT field specialists. The conducted research results showed that the diploma of joint degree programs would not be treated as an advantage of possible employee from the perspective of employers in case some important aspects will not be taken into consideration by program creators. On the other hand, undeniably there are strong sides, such as knowledge in the fields of foreign language, international experience, innovativeness and creativeness of employees that would be treated as an advantage in the process of selection for positions of any technical support related positions. Research limitations/implications — employers, whose business activities are closely related to information technology, have been invited as experts. In addition, these experts have a good understanding of the specifics of joint degree programs. The received
Variation in meroplankton along 78 degrees E Meridian
Digital Repository Service at National Institute of Oceanography (India)
Balachandran, T.; Peter, K.J.
degrees S, 5 degrees S-15 degrees S and 15 degrees S-23 degrees S). Fish eggs showed variations within the zones, having a maximum of 1 to 5 in Zone B. While greater variations of 1 to 4 were shown in Zone B by the bivalve larvae, it was less in other...
Rank of loop, constraint degree of path, coupling degree of graph and their application
Institute of Scientific and Technical Information of China (English)
YANG Tingli; LUO Yufeng; ZHANG Ce; YAO Fanghua
2005-01-01
Some new concepts (rank of a loop, degree of freedom of a graph, path unit and ordered path arrangement, constraint degree of path, coupling degree of a graph, basic graph, etc. ), formulas, and algorithms, are proposed in this paper. Based on these concepts, a new systematic theory and practical method for the design of topological structure, kinematics and dynamics of mechanical systems is established. Some conjectures and problems needed to be researched are also put forward. The concepts, formulae and algorithms presented in this paper will find wide potential applications.
Effective degrees of freedom in QCD thermodynamics
Directory of Open Access Journals (Sweden)
Turko L.
2014-04-01
Full Text Available An effective model reproducing the equation of state of hadronic matter as obtained in recent lattice QCD simulations and from hadron resonance gas data is presented. The hadronic phase is described by means of an extended Mott-Hagedorn resonance gas while the QGP phase is described by the extended PNJL model. The dissociation of hadrons is obtained by including the state dependent hadron resonance width. The model gives a quantitative estimate for partial fractions of hadronic and partonic degrees of freedom above Tc.
Developing Your 360-Degree Leadership Potential.
Verma, Nupur; Mohammed, Tan-Lucien; Bhargava, Puneet
2017-09-01
Radiologists serve in leadership roles throughout their career, making leadership education an integral part of their development. A maxim of leadership style is summarized by 360-Degree Leadership, which highlights the ability of a leader to lead from any position within the organization while relying on core characteristics to build confidence from within their team. The qualities of leadership discussed can be learned and applied by radiologists at any level. These traits can form a foundation for the leader when faced with unfavorable events, which themselves allow the leader an opportunity to build trust. Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.
Geologic map of the Dillon 1 degree by 2 degrees Quadrangle, Idaho and Montana
Ruppel, E.T.; Lopez, D.A.; O'Neill, J. M.
1993-01-01
The digital ARC/INFO databases included in this website provide a GIS database for the geologic map of the Dillon 1 degree by 2 degree quadrangle of southwest Montana and east-central Idaho. The geologic map was originally published as U.S. Geological Survey Miscellaneous Investigations Series Map I-1803-H. This website directory contains ARC/INFO format files that can be used to query or display the geology of USGS Map I-1803-H with GIS software.
Minimum degree condition forcing complete graph immersion
DeVos, Matt; Fox, Jacob; McDonald, Jessica; Mohar, Bojan; Scheide, Diego
2011-01-01
An immersion of a graph $H$ into a graph $G$ is a one-to-one mapping $f:V(H) \\to V(G)$ and a collection of edge-disjoint paths in $G$, one for each edge of $H$, such that the path $P_{uv}$ corresponding to edge $uv$ has endpoints $f(u)$ and $f(v)$. The immersion is strong if the paths $P_{uv}$ are internally disjoint from $f(V(H))$. It is proved that for every positive integer $t$, every simple graph of minimum degree at least $200t$ contains a strong immersion of the complete graph $K_t$. For dense graphs one can say even more. If the graph has order $n$ and has $2cn^2$ edges, then there is a strong immersion of the complete graph on at least $c^2 n$ vertices in $G$ in which each path $P_{uv}$ is of length 2. As an application of these results, we resolve a problem raised by Paul Seymour by proving that the line graph of every simple graph with average degree $d$ has a clique minor of order at least $cd^{3/2}$, where $c>0$ is an absolute constant. For small values of $t$, $1\\le t\\le 7$, every simple graph of...
Degree of satisfaction among hearing aid users
Directory of Open Access Journals (Sweden)
Mondelli, Maria Fernanda Capoani Garcia
2013-01-01
Full Text Available Introduction: Hearing loss (HL is defined as the complete or partial loss of hearing ability. Aims: To characterize (1 the degree of satisfaction among adult and elderly hearing aid (HA users who were treated by a public hearing health service and (2 the relationship between satisfaction and the variables of gender, age, degree of HL, and type of HA. Method: The clinical and experimental study included the administration of the Satisfaction with Amplification in Daily Life (SADL questionnaire to 110 patients who had used HAs for more than 3 months and were 18 years of age or older. Results: Test patients were sex-balanced (48% were women and had a mean age of 67 years. A relatively high incidence of sensorineural moderate HL was detected in the study patients (66% and device B was the most commonly used HA type (48%. No significant differences were evident between HA satisfaction and sex. The importance placed on services/costs and personal image varied between age groups. Correlation was evident at all levels between user satisfaction and amplification. Decreased satisfaction was observed in individuals with severe and/or profound HL. The type of HA used yielded statistically significant differences in the positive effects referring. Conclusion: No correlations were evident between the different factors proposed. HA users exhibited high levels of satisfaction in all SADL areas.
STUDY REGARDING THE CUSTOMERS SATISFACTION DEGREE
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Palade Alexandru Constantin
2015-07-01
Full Text Available The main objective of the study is to establish the satisfaction degree of the heavy commercial vehicles market customers. This scientifical endeavour is justified by the major importance given by the producers and distributors of such vehicles to the beneficiaries’ satisfaction, a hich importance factor in the product development, customer relations inprovement and market share growth. After the 2008-2009 financial crisis, when the Romanian heavy commercial vehicles market collapsed, the growth trend was linear and moderat, but the market structure changed significantly. Having on one hand high technological costs, generated by the European legislation on pllution reduction and road safety and, on the other hand, the beneficiaries’ price pressure, the top producers from the deveoped countries focused on the optimization of the cutomers’ satisfaction degree and the development of their loyalty towards the brand. In order to achieve this, there has been developed a selective qualitative research, in the form of a questionnaire, among the most important customers of MHS Truck & Bus SRL – the importer of MAN trucks in Romania. The questions were directed towards obtaining informations regarding the customers’ product perception, identifying the main acquisition motivations and finding the main issues in successfully implementing the main politics of the relational maketing. The obtained results generally showed a good satisfaction result, the main complaints regarding subjects indirectly linked to the distribution, like service performance or road assistance.
On free ring extensions of degree n
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George Szeto
1981-01-01
Full Text Available Nagahara and Kishimoto [1] studied free ring extensions B(x of degree n for some integer n over a ring B with 1, where xn=b, cx=xρ(c for all c and some b in B(ρ=automophism of B, and {1,x…,xn−1} is a basis. Parimala and Sridharan [2], and the author investigated a class of free ring extensions called generalized quaternion algebras in which b=−1 and ρ is of order 2. The purpose of the present paper is to generalize a characterization of a generalized quaternion algebra to a free ring extension of degree n in terms of the Azumaya algebra. Also, it is shown that a one-to-one correspondence between the set of invariant ideals of B under ρ and the set of ideals of B(x leads to a relation of the Galois extension B over an invariant subring under ρ to the center of B.
80 Degrees of Seperation: Landscape in Literature
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Stephanie Rolley
2004-12-01
Full Text Available Two writers in the early 1900s, Katherine Mansfield in New Zealand and Willa Cather in the United States tallgrass prairie, chronicled both the cultural and physical nuances of their frontiers. Their stories are set in rich textural backdrops, made vivid with their descriptions of natural environments. These descriptions provide the context for this paper's exploration. The dense and evocative imagery of these two writers provides a point of departure for a comparison of the two landscapes. The agricultural settlement patterns and natural systems of the New Zealand bush and farmland and those of the United States tallgrass prairie invite comparison. Mansfield's and Cather's narratives provide the guide for this study, capturing the subtle differences and underlying similarities of the textures and patterns of these two landscapes, while emphasising the differences in colour and scale. The degrees of separation are not as distinct as the 80 degrees of latitude that lie between them. Instead there is a myriad of subtle, rather than singular, differentiations. This visual analysis is not intended to address the significant cultural differences of these two places. Rather, it is a study of visual distinctions and similarities guided by the environmental qualities identified by a native author from each locale: Mansfield (New Zealand bush and farmland, and Cather (United States tallgrass prairie. Guided by their words, my own investigation of place is a graphic exploration of the physical environment: the line, form, pattern, texture, colour, light and spatial qualities of each landscape.
360 DEGREE SUBANNULAR TYMPANOPLASTY: A RETROSPECTIVE STUDY
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Kuldeep
2015-04-01
Full Text Available OBJECTIVE OF THE STUDY: To study the efficacy of underlay tympanoplasty by elevating the annulus by 360 degrees. SUBJECTS AND METHODS : Two hundred patients with chronic otitis media , tubotympanic disease , inactive stage who underwent tympanoplasty by the above technique between the years 2009 to 2013 were selected for the study as and when they were admitted. All the patients were followed up for 6 months fol lowing surgery. Any complications like secondary infection , wound dehiscence , granulations , were looked for and treated appropriately. Status of the neotympanum was evaluated at the end of 3 months. Any anterior blunting , medialisation or lateralisation of the graft was noted. Any residual perforation was considered as failure. Hearing was evaluated in all patients with an intact neotympanum. RESULTS : Our study showed an overall success rate of 96% as far as graft uptake was concerned. Hearing improvement w as seen in 93% of our patients. 6 patients had complete air bone gap closure , 49 had AB gap of 10db or less , 131 had AB gap of 11 - 20db. 14 patients had no improvement in hearing. Overall hearing improvement was seen in 93% of our patients. CONCLUSION : In c onclusion 360 degree sub - annular tympanoplasty is a efficient technique of tympanoplasty with very good results.
Mesodynamics with implicit degrees for freedom
Lin, Keng-Hua; Germann, Timothy C; Strachan, Alejandro
2014-01-01
Mesoscale phenomena -- involving a level of description between the finest atomistic scale and the macroscopic continuum -- can be studied by a variation on the usual atomistic-level molecular dynamics (MD) simulation technique. In mesodynamics, the mass points, rather than being atoms, are mesoscopic in size, for instance representing the centers of mass of polycrystalline grains or molecules. In order to reproduce many of the overall features of fully atomistic MD, which is inherently more expensive, the equations of motion in mesodynamics must be derivable from an interaction potential that is faithful to the compressive equation of state, as well as to tensile de-cohesion that occurs along the boundaries of the mesoscale units. Moreover, mesodynamics diffrers from Newton's equations of motion in that dissipation -- the exchange of energy between mesoparticles and their internal degrees of freedom (DoFs) -- must be described, and so should the transfer of energy between the internal modes of neighboring me...
Research on image scrambling degree evaluation method
Bai, Sen; Liao, Xiaofeng; Chen, Jinyu; Liu, Yijun; Wang, Xiao
2005-12-01
This paper discussed the evaluation problem of image scrambling degree (ISD). Inspired by the evaluation method of image texture characteristics, three new metrics for assessing objectively the ISD were proposed. The first method utilized the performance of energy concentration of Walsh transformation (WT), which took into account the properties that a good ISD measurement method should be contented. The second method used angular second moment (ASM) of image gray level co-occurrence matrix (GLCM). The third method combined the entropy of GLCM with image texture characteristic. Experimental results show that the proposed metrics are effective to assess the ISD, which correlates well with subjective assessment. Considering the computational complexity, the first evaluation method based on WT is remarkably superior to the method based on ASM and GLCM in terms of the time cost.
The Degree Distribution of the Random Multigraphs
Institute of Scientific and Technical Information of China (English)
Ai Lian CHEN; Fu Ji ZHANG; Hao LI
2012-01-01
In this paper,as a generalization of the binomial random graph model,we define the model of multigraphs as follows:let (Q)(n; {pk}) be the probability space of all the labelled loopless multigraphs with vertex set V ={v1,v2,...,vn },in which the distribution of tvi,vj,the number of the edges between any two vertices vi and vj isP{tvi,vj =k} =pk, k =0,1,2,...and they are independent of each other.Denote by Xd =Xd(G),Yd =Yd(G),Zd =Zd(G) and Zcd =Zed(G) the number of vertices of G with degree d,at least d,at most d and between c and d.In this paper,we discuss the distribution of Xd,Yd,Zd and Zcd in the probability space (Q)(n; {pk}).
Happiness, Psychology, and Degrees of Realism
Lavazza, Andrea
2016-01-01
The recent emphasis on a realist ontology that cannot be overshadowed by subjectivist or relativist perspectives seems to have a number of consequences for psychology as well. My attempt here is to analyse the relationship between happiness as a state of the individual and the states of the external world and the brain events related to (or, in some hypotheses, causally responsible for) its occurrence. It can be maintained that different degrees of realism are suitable to describe the states of happiness and this fact might have relevant psychological implications, namely for the so-called positive psychology. This is especially true now that there are methods available to induce subjective states of happiness unrelated to the external conditions usually taken to be linked to such states. PMID:27536261
Happiness, Psychology, and Degrees of Realism.
Lavazza, Andrea
2016-01-01
The recent emphasis on a realist ontology that cannot be overshadowed by subjectivist or relativist perspectives seems to have a number of consequences for psychology as well. My attempt here is to analyse the relationship between happiness as a state of the individual and the states of the external world and the brain events related to (or, in some hypotheses, causally responsible for) its occurrence. It can be maintained that different degrees of realism are suitable to describe the states of happiness and this fact might have relevant psychological implications, namely for the so-called positive psychology. This is especially true now that there are methods available to induce subjective states of happiness unrelated to the external conditions usually taken to be linked to such states.
Vocational Counseling and Training for Medical Degrees
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Belkis Mercedes Vicente Sánchez
2014-04-01
Full Text Available Deciding on a university degree is undoubtedly a difficult choice. This situation brings about fear of failing and disappointing yourself and others, which is a common feeling among high school students, becoming a source of anxiety and stress. This demonstrates the need for an appropriate vocational and professional guidance. In Cuba, this subject is gaining importance, since a greater number of youngsters have the opportunity to choose from more professions; thus, deciding on one or the other is a problem of great practical and social impact. Vocational guidance and training in the Cuban educational context aims to reaffirm the inclination of youth towards medical studies, where they fully develop their potential, on the basis of consolidating values and feelings, and a high social, moral and unconditional commitment to the practice of the profession. This paper presents various issues that currently affect vocational guidance and the role of each of the major participants in the process itself.
On degree bounds for separating invariants
Kohls, Martin
2010-01-01
Let a group $G$ act on a finite dimensional vector space $V$ over an algebraically closed field $K$ of characteristic $p$. Then $\\beta_{\\sep}(G)$ is the minimal number such that, for any $V$, the invariants of degree less or equal than this number have the same separating properties as the whole invariant ring $K[V]^{G}$. Derksen and Kemper have shown $\\beta_{\\sep}(G)\\le |G|$. We show $\\beta_{\\sep}(G)=|G|$ for $p$-groups and cyclic groups, and $\\beta_{\\sep}(G)=\\infty$ for infinite unipotent groups. We also show $\\beta_{\\sep}(G)\\le \\beta_{\\sep}(G/N)\\beta_{\\sep}(N)$ for a normal divisor $N$ of finite index.
Hidden degrees of freedom in aperiodic materials.
Toudic, Bertrand; Garcia, Pilar; Odin, Christophe; Rabiller, Philippe; Ecolivet, Claude; Collet, Eric; Bourges, Philippe; McIntyre, Garry J; Hollingsworth, Mark D; Breczewski, Tomasz
2008-01-04
Numerous crystalline materials, including those of bioorganic origin, comprise incommensurate sublattices whose mutual arrangement is described in a superspace framework exceeding three dimensions. We report direct observation by neutron diffraction of superspace symmetry breaking in a solid-solid phase transition of an incommensurate host-guest system: the channel inclusion compound of nonadecane/urea. Strikingly, this phase transition generates a unit cell doubling that concerns only the modulation of one substructure by the other-an internal variable available only in superspace. This unanticipated pathway for degrees of freedom to rearrange leads to a second phase transition, which again is controlled by the higher dimensionality of superspace. These results reveal nature's capacity to explore the increased number of phases allowed in aperiodic crystals.
The 360 Degree Fulldome Production "Clockwork Ocean"
Baschek, B.; Heinsohn, R.; Opitz, D.; Fischer, T.; Baschek, T.
2016-02-01
The investigation of submesoscale eddies and fronts is one of the leading oceanographic topics at the Ocean Sciences Meeting 2016. In order to observe these small and short-lived phenomena, planes equipped with high-resolution cameras and fast vessels were deployed during the Submesoscale Experiments (SubEx) leading to some of the first high-resolution observations of these eddies. In a future experiment, a zeppelin will be used the first time in marine sciences. The relevance of submesoscale processes for the oceans and the work of the eddy hunters is described in the fascinating 9-minute long 360 degree fulldome production Clockwork Ocean. The fully animated movie is introduced in this presentation taking the observer from the bioluminescence in the deep ocean to a view of our blue planet from space. The immersive media is used to combine fascination for a yet unknown environment with scientific education of a broad audience. Detailed background information is available at the parallax website www.clockwork-ocean.com. The Film is also available for Virtual Reality glasses and smartphones to reach a broader distribution. A unique Mobile Dome with an area of 70 m² and seats for 40 people is used for science education at events, festivals, for politicians and school classes. The spectators are also invited to participate in the experiments by presenting 360 degree footage of the measurements. The premiere of Clockwork Ocean was in July 2015 in Hamburg, Germany and will be worldwide available in English and German as of fall 2015. Clockwork Ocean is a film of the Helmholtz-Zentrum Geesthacht produced by Daniel Opitz and Ralph Heinsohn.
Multiple degree of freedom impact oscillator
Energy Technology Data Exchange (ETDEWEB)
Gontier, C. [Laboratoire Mecanique S., S. et M., Ecole Centrale, 75 -Paris (France)
1996-07-01
The forced vibration of dynamic systems with motion stops is relevant to many practical engineering problems. Several applications were identified in the field of mechanical engineering: structures having clearances, bolted junctions, or rods inside guiding grids. Such mechanical systems, when subjected to harmonic excitation, may not necessarily behave in a periodic way, and the loss of stability of their periodic motion is often a precursor for much more complex nonlinear behaviour. Many numerical, analytical and experimental studies have been carried out on the dynamics of these impacting systems. In particular, the behaviour of single degree of freedom (d.o.f.) impact oscillators has been extensively studied. Phenomena like attractor coexistence, subharmonic bifurcation, and chaos were identified in many earlier papers. The classical pattern of flip bifurcation cascade was observed numerically by Shaw and Holmes, and the Feigenbaum scenario of transition to chaos was confirmed. Others also proved that such systems can undergo ``grazing bifurcation`` and that they could lead to chaotic behaviour. Peterka and Vacik even provided bounds of chaotic responses with the help of an analogue computer. Experiments were also carried out on models, like impact pendulums, whose dynamics can be approximately fitted by a single d.o.f. impact oscillator. Other authors conducted investigations into the existence and stability of periodic solutions. Most of these studies were dedicated to the single impact periodic responses of single d.o.f. impact oscillators. The purpose of this paper is to expand the scope of these analytic investigations. This expansion will take two directions, considering first an arbitrarily large number of degrees of freedom in the oscillating structure, and secondly an arbitrary finite number of impacts per period. Thus, the methods presented here could be applied in the study of any finite impact periodic motions of any dynamic impacting system.
360-degree retinectomy for severe ocular rupture
Institute of Scientific and Technical Information of China (English)
ZHANG Mao-nian; JIANG Cai-hui
2005-01-01
Objective: To investigate the effect of 360-degree retinectomy for severe ocular rupture and evaluate the related factors associated with prognosis.Methods: A retrospective analysis was performed on 28 consecutive patients, 18 men and 10 women, with severe ocular rupture admitted to the Chinese PLA General Hospital between January 1999 and January 2002. The patients' ages ranged from 16 to 58 years, mean 29.5years. All operations were performed by the first author.All patients underwent standard 3-port pars plana vitrectomy with scleral encircling buckle,endophotocoagulation, and tamponaded with silicone oil.Lensectomy were performed on 15 eyes. 360-degree retinotomy and retinectomy were performed at anterior equator on 16 eyes, and posterior equator on 12 eyes.Results: During operation, all patients were confirmed to have vitreous hemorrhage and retinal detachment, in which hemorrhagic ciliary body detachment was found in 9 eyes, suprachoroidal hemorrhage in 12 eyes,retinal twisting like flower stalk in 11 eyes, and retinal incarceration in 17 eyes. Postoperative follow-up was conducted in 26 cases, ranged from 6 months to 46 months.Retinal reattachment achieved in 20 eyes (76. 9%), in which three patients' retina was reattached after revitrectomy. The silicone oil was removed at the fourth month in 8 eyes postoperatively. Corrected visual acuity of 0.02 or more was in 14 eyes (70. 0%) among the 20patients with reattached retina. Visual acuity of 0.05 or more was in 7 eyes ( 35.0 % ), and 0.1 or more was in 3eyes. The best visual acuity was 0.3 in 1 eye.Conclusions: Retinectomy may improve the prognosis of severe ocular rupture and save the visual function of some patients.
Helvacioglu, Firat; Yeter, Celal; Tunc, Zeki; Sencan, Sadik
2013-08-01
To compare the safety and efficacy of Ozil Intelligent Phaco torsional microcoaxial phacoemulsification surgeries performed with 12-degree and 22-degree bent tips using the Infiniti Vision System. Maltepe University School of Medicine Department of Ophthalmology, Istanbul, Turkey. Comparative case series. Eyes were assigned to 2.2 mm microcoaxial phacoemulsification using the torsional mode with a 22-degree bent tip (Group 1) or a 12-degree bent tip (Group 2). The primary outcome measures were ultrasound time (UST), cumulative dissipated energy (CDE), longitudinal and torsional ultrasound (US) amplitudes, mean surgical time, mean volume of balanced salt solution used, and surgical complications. Both groups included 45 eyes. The mean UST, CDE, longitudinal US amplitude, and torsional US amplitude were 65 seconds ± 27.23 (SD), 11.53 ± 6.99, 0.22 ± 0.26, and 42.86 ± 15.64, respectively, in Group 1 and 84 ± 45.04 seconds, 16.68 ± 10.66, 0.48 ± 0.68, and 46.27 ± 14.74, respectively, in Group 2. The mean UST, CDE, and longitudinal amplitudes were significantly lower in Group 1 (P=.003, P=.008, and P=.022, respectively). The mean volume of balanced salt solution was 73.33 ± 28.58 cc in Group 1 and 82.08 ± 26.21 cc in Group 2 (P=.134). Torsional phacoemulsification performed with 22-degree bent tips provided more effective lens removal than 12-degree bent tips, with a lower UST and CDE. Copyright © 2013 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.
Perceived Benefits of an Undergraduate Degree
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Cole Norton
2017-04-01
Full Text Available Canadian university students tend to endorse employment-related reasons for attending university ahead of other reasons such as personal satisfaction or intellectual growth. In the present study, first- and fourth-year students from a mid-sized Canadian university reported on the benefits they expected to receive from their degree and rated their relative importance. These open-ended responses suggested that both groups of students placed a greater emphasis on benefits related to career preparation and economic advancement than those associated with learning and self-improvement. However, when asked to evaluate the importance of a comprehensive list of degree-related benefits both groups of students endorsed the value of many of them, including those related to learning and self-improvement. Our results suggest the importance of methodology in gathering data about this issue, and we consider them in light of current concerns with helping students to understand the full value of their degree. Les étudiants des universités canadiennes ont tendance à accepter les raisons qui se rapportent à l’emploi pour justifier les études universitaires avant d’autres raisons telles que la satisfaction personnelle ou la croissance intellectuelle. Dans la présente étude, des étudiants de première année et de quatrième année d’une université canadienne de taille moyenne ont indiqué les avantages qu’ils s’attendaient à obtenir avec leur diplôme et les ont classés par ordre d’importance. Ces réponses ouvertes suggèrent que les deux groupes d’étudiants ont attribué une plus grande importance aux avantages liés à la préparation de leur carrière et à l’avancement économique qu’à ceux liés à l’apprentissage et à l’amélioration personnelle. Toutefois, quand on leur a demandé d’évaluer l’importance d’une liste complète d’avantages liés à l’obtention d’un diplôme, les deux groupes d’étudiants ont
Portion of Enhanced 360-degree Gallery Pan
1997-01-01
This is a sub-section of the 'geometrically improved, color enhanced' version of the 360-degree panorama heretofore known as the 'Gallery Pan', the first contiguous, uniform panorama taken by the Imager for Mars Pathfinder (IMP) over the course of Sols 8, 9, and 10. Different regions were imaged at different times over the three Martian days to acquire consistent lighting and shadow conditions for all areas of the panorama.The IMP is a stereo imaging system that, in its fully deployed configuration, stands 1.8 meters above the Martian surface, and has a resolution of two millimeters at a range of two meters. In this geometrically improved version of the panorama, distortion due to a 2.5 degree tilt in the IMP camera mast has been removed, effectively flattening the horizon.The IMP has color capability provided by 24 selectable filters -- twelve filters per 'eye'. Its red, green, and blue filters were used to take this image. The color was digitally balanced according to the color transmittance capability of a high-resolution TV at the Jet Propulsion Laboratory (JPL), and is dependent on that device. In this color enhanced version of the panorama, detail in surface features are brought out via changes to saturation and intensity, holding the original hue constant. A threshold was applied to avoid changes to the sky.At left is a Lander petal and a metallic mast which is a portion of the low-gain antenna. Misregistration in the antenna and other Lander features is due to parallax in the extreme foreground. Another Lander petal is at the right, showing the fully deployed forward ramp.Mars Pathfinder is the second in NASA's Discovery program of low-cost spacecraft with highly focused science goals. The Jet Propulsion Laboratory, Pasadena, CA, developed and manages the Mars Pathfinder mission for NASA's Office of Space Science, Washington, D.C. JPL is a division of the California Institute of Technology (Caltech). The IMP was developed by the University of Arizona Lunar
New Degree for a New Career? Career Development of Finnish Polytechnic Master's Degree Graduates
Ahola, Sakari; Galli, Loretta
2012-01-01
This article explores Finnish polytechnic master's degree graduates' career development about one year after graduation. Twenty interviewed graduates were first classified on the basis of their initial educational motives yielding a typology of goal-oriented, learning-oriented and drifters. After this, their career development was analysed. As a…
Making Sense of the Combined Degree Experience: The Example of Criminology Double Degrees
Wimshurst, Kerry; Manning, Matthew
2017-01-01
Little research has been undertaken on student experiences of combined degrees. The few studies report that a considerable number of students experienced difficulty with the contrasting epistemic/disciplinary demands of the component programmes. A mixed-methods approach was employed to explore the experiences of graduates from four double degrees…
Astronomy Enrollments and Degrees: Results from the 2007 Survey of Enrollments and Degrees. Focus On
Nicholson, Starr; Mulvey, Patrick
2009-01-01
The Statistical Research Center of the American Institute of Physics conducts an annual census from October through February of all 75 departments that offer degrees in astronomy in the United States. For the class of 2007, the authors received responses from 73 (97%) of these departments. Estimates were derived and included in the totals for…
Marketing Issues for Non-Degree United Kingdom Higher Education: The Case of Foundation Degrees.
Gibbs, Paul
2002-01-01
Discusses educational marketing in terms of branding and consumer trust. Argues that the labeling and marketing of Britain's new foundation degrees, employment-related higher education qualifications, is detrimental to their success. Suggests a need for more clarity and veracity in the claim for parity of esteem for vocational qualifications.…
Increasingly Global: Combining an International Business Degree with a Post-Degree Designation
Smith, Rachel; Terry, Andy; Vibhakar, Ashvin
2006-01-01
In the increasingly complex and competitive global marketplace, many students seek to gain multiple skills and credentials that can aid them in their career goals. One such career strategy weds a general overarching comprehensive degree with a specific and targeted skill set. This paper provides a viable curriculum path for students who seek…
Chewning, June S.
The Atomic Energy Commission's survey of nuclear engineering degrees granted during the 1971-72 academic year shows a continuing increase in bachelor's recipients, a slight increase in the number of master's, but a continuing decline in new Ph.D.'s. If the present rate of decline persists, by 1974 the number of new Ph.D.'s in the field will be…
Starks, Luciana Janee'
2010-01-01
Increasing the number of advanced degree recipients is more than an educational issue; it is also a key social issue. "A college-educated population results in pivotal benefits to society" (The National Center for Public Policy and Higher Education, 2004, p. 1). Although African Americans have made steady and notable progress in doctorate degree…
A JVLA 10~degree^2 deep survey
Jarvis, Matt J; Bruggen, Marcus; Ferrari, Chiara; Heywood, Ian; Hardcastle, Martin; Murphy, Eric; Taylor, Russ; Smirnov, Oleg; Simpson, Chris; Smolcic, Vernesa; Stil, Jeroen; van der Heyden, Kurt
2014-01-01
(Abridged)One of the fundamental challenges for astrophysics in the 21st century is finding a way to untangle the physical processes that govern galaxy formation and evolution. Given the importance and scope of this problem, the multi-wavelength astronomical community has used the past decade to build up a wealth of information over specific extragalactic deep fields to address key questions in galaxy formation and evolution. These fields generally cover at least 10square degrees to facilitate the investigation of the rarest, typically most massive, galaxies and AGN. Furthermore, such areal coverage allows the environments to be fully accounted for, thereby linking the single halo to the two-halo terms in the halo occupation distribution. Surveys at radio wavelengths have begun to lag behind those at other wavelengths, especially in this medium-deep survey tier. However, the survey speed offered by the JVLA means that we can now reach a point where we can begin to obtain commensurate data at radio wavelengths...
Constraining the roughness degree of slip heterogeneity
Causse, Mathieu
2010-05-07
This article investigates different approaches for assessing the degree of roughness of the slip distribution of future earthquakes. First, we analyze a database of slip images extracted from a suite of 152 finite-source rupture models from 80 events (Mw = 4.1–8.9). This results in an empirical model defining the distribution of the slip spectrum corner wave numbers (kc) as a function of moment magnitude. To reduce the “epistemic” uncertainty, we select a single slip model per event and screen out poorly resolved models. The number of remaining models (30) is thus rather small. In addition, the robustness of the empirical model rests on a reliable estimation of kc by kinematic inversion methods. We address this issue by performing tests on synthetic data with a frequency domain inversion method. These tests reveal that due to smoothing constraints used to stabilize the inversion process, kc tends to be underestimated. We then develop an alternative approach: (1) we establish a proportionality relationship between kc and the peak ground acceleration (PGA), using a k−2 kinematic source model, and (2) we analyze the PGA distribution, which is believed to be better constrained than slip images. These two methods reveal that kc follows a lognormal distribution, with similar standard deviations for both methods.
Helvacioglu, Firat; Sencan, Sadik; Yeter, Celal; Tunc, Zeki; Uyar, O Murat
2014-03-01
To compare the safety and efficacy of Ozil Intelligent Phaco torsional microcoaxial phacoemulsification surgeries performed using 30-degree and 45-degree aperture angled tips. Maltepe University School of Medicine Department of Ophthalmology, Istanbul, Turkey. Comparative case series. Eyes were assigned to 2.2 mm microcoaxial phacoemulsification using the torsional mode with a 45-degree (Group 1) or 30-degree (Group 2) aperture angled tip. A quick-chop surgical technique was used. The primary outcome measures were ultrasound time (UST), cumulative dissipated energy (CDE), longitudinal and torsional ultrasound (US) amplitudes, mean surgical time, mean balanced salt solution volume used, and mean central corneal thickness (CCT) changes. The mean UST, CDE, and longitudinal and torsional US amplitudes were 58.21 seconds ± 33.81 (SD), 7.74 ± 6.23, 0.45 ± 0.30, and 26.30 ± 12.60 in Group 1 and 63.83 ± 23.42 seconds, 12.36 ± 6.75, 0.23 ± 0.26, and 44.65 ± 14.38 in Group 2, respectively. The mean CDE and torsional amplitudes were significantly lower in Group 1 (P=.002 and P=.001, respectively). The mean balanced salt solution volume was 73.30 ± 19.87 cc in Group 1 and 74.30 ± 19.44 cc in Group 2 (P=.821). The mean CCT change was 52.40 ± 38.08 μm and 99.35 ± 47.14 μm, respectively (Ptip provided more effective lens removal with a lower CDE and less CCT change than a 30-degree aperture angled tip. Copyright © 2014 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.
Interdiffusion and Reaction between Zr and Al Alloys from 425 degrees to 625 degrees C
Energy Technology Data Exchange (ETDEWEB)
J. Dickson; L. Zhou; A. Ewh; M. Fu; D. D. Keiser, Jr.; Y. H. Sohn; A. Paz y Puente
2014-06-01
Zirconium has recently garnered attention for use as a diffusion barrier between U–Mo nuclear fuels and Al cladding alloys. Interdiffusion and reactions between Zr and Al, Al-2 wt.% Si, Al-5 wt.% Si or AA6061 were investigated using solid-to-solid diffusion couples annealed in the temperature range of 425 degrees to 625 degrees C. In the binary Al and Zr system, the Al3Zr and Al2Zr phases were identified, and the activation energy for the growth of the Al3Zr phase was determined to be 347 kJ/mol. Negligible diffusional interactions were observed for diffusion couples between Zr vs. Al-2 wt.% Si, Al-5 wt.% Si and AA6061 annealed at or below 475 degrees C. In diffusion couples with the binary Al–Si alloys at 560 degrees C, a significant variation in the development of the phase constituents was observed including the thick t1 (Al5SiZr2) with Si content up to 12 at.%, and thin layers of (Si,Al)2Zr, (Al,Si)3Zr, Al3SiZr2 and Al2Zr phases. The use of AA6061 as a terminal alloy resulted in the development of both T1 (Al5SiZr2) and (Al,Si)3Zr phases with a very thin layer of (Al,Si)2Zr. At 560 degrees C, with increasing Si content in the Al–Si alloy, an increase in the overall rate of diffusional interaction was observed; however, the diffusional interaction of Zr in contact with multicomponent AA6061 with 0.4–0.8 wt.% Si was most rapid.
1997-01-01
This 360-degree panorama was taken in stereo by the deployed Imager for Mars Pathfinder (IMP) on Sol 3. 3D glasses (red left lens, blue right lens) are necessary to help identify surface detail. All three petals, the perimeter of the deflated airbags, deployed rover Sojourner, forward and backward ramps and prominent surface features are visible, including the double Twin Peaks at the horizon. Sojourner would later investigate the rock Barnacle Bill just to its left in this image, and the larger rock Yogi at its forward right.The IMP is a stereo imaging system with color capability provided by 24 selectable filters -- twelve filters per 'eye.' It stands 1.8 meters above the Martian surface, and has a resolution of two millimeters at a range of two meters. Stereoscopic imaging brings exceptional clarity and depth to many of the features in this image, particularly the ridge beyond the far left petal and the large rock Yogi. The curvature and misalignment of several section are due to image parallax.Mars Pathfinder is the second in NASA's Discovery program of low-cost spacecraft with highly focused science goals. The Jet Propulsion Laboratory, Pasadena, CA, developed and manages the Mars Pathfinder mission for NASA's Office of Space Science, Washington, D.C. JPL is a division of the California Institute of Technology (Caltech). The Imager for Mars Pathfinder (IMP) was developed by the University of Arizona Lunar and Planetary Laboratory under contract to JPL. Peter Smith is the Principal Investigator.Click below to see the left and right views individually. [figure removed for brevity, see original site] Left [figure removed for brevity, see original site] Right
Degree and connectivity of the Internet's scale-free topology
Institute of Scientific and Technical Information of China (English)
Zhang Lian-Ming; Deng Xiao-Heng; Yu Jian-Ping; Wu Xiang-Sheng
2011-01-01
This paper theoretically and empirically studies the degree and connectivity of the Internet's scale-free topology at an autonomous system (AS)level. The basic features of scale-free networks influence the normalization constant of degree distribution p(k). It develops a new mathematic model for describing the power-law relationships of Internet topology. From this model we theoretically obtain formulas to calculate the average degree, the ratios of the kmin-degree (minimum degree)nodes and the km.-degree (maximum degree)nodes, and the fraction of the degrees (or links)in the hands of the richer (top best-connected)nodes. It finds that the average degree is larger for a smaller power-law exponent λ and a larger minimum or maximum degree. The ratio of the kmin-degree nodes is larger for larger a and smaller kmin or kmax. The ratio of the kmax-degree ones is larger for smaller λ and kn,ax or larger kmin. The richer nodes hold most of the total degrees of Internet AS-level topology. In addition, it is revealed that the increased rate of the average degree or the ratio of the kmin-degree nodes has power-law decay with the increase of kmin. The ratio of the km.-degree nodes has a power-law decay with the increase of k, and the fraction of the degrees in the hands of the richer 27% nodes is about 73% (the'73/27 rule'). Finally, empirically calculations are made, based on the empirical data extracted from the Border Gateway Protocol, of the average degree, ratio and fraction using this method and other methods, and find that this method is rigorous and effective for Internet AS-level topology.
Silverman, Joseph H
2011-01-01
Let F : P^N --> P^N be a dominant rational map. The dynamical degree of F is the quantity d_F = lim (deg F^n)^(1/n). When F is defined over a number field, we define the arithmetic degree of an algebraic point P to be a_F(P) = limsup h(F^n(P))^(1/n) and the canonical height of P to be h_F(P) = limsup h(F^n(P))/n^k d_F^n for an appropriately chosen integer k = k_F. In this article we prove some elementary relations and make some deep conjectures relating d_F, a_F(P), and h_F(P). We prove our conjectures for semisimple monomial maps.
Atomic Energy Commission, Washington, DC. Office of Industrial Relations.
This document presents statistical data concerning enrollments for fall 1973 and degrees granted 1965-June 1973 in nuclear engineering. Highlights of this survey of educational institutions indicated: (1) Ph.D.'s decreased to 126 from 149 in 1971-72 and from 181 in 1969-70. (2) MS's increased to 442 from 428 in 1971-72. (3) BS's increased to 551…
Assessing Degree of Susceptibility to Landslide Hazard
Sheridan, M. F.; Cordoba, G. A.; Delgado, H.; Stefanescu, R.
2013-05-01
The modeling of hazardous mass flows, both dry and water saturated, is currently an area of active research and several stable models have now emerged that have differing degrees of physical and mathematical fidelity. Models based on the early work of Savage and Hutter (1989) assume that very large dense granular flows could be modeled as incompressible continua governed by a Coulomb failure criterion. Based on this concept, Patra et al. (2005) developed a code for dry avalanches, which proposes a thin layer mathematical model similar to shallow-water equations. This concept was implemented in the widely-used TITAN2D program, which integrates the shock-capturing Godunov solution methodology for the equation system. We propose a method to assess the susceptibility of specific locations susceptible to landslides following heavy tephra fall using the TIATN2D code. Successful application requires that the range of several uncertainties must be framed in the selection of model input data: 1) initial conditions, like volume and location of origin of the landslide, 2) bed and internal friction parameters and 3) digital elevation model (DEM) uncertainties. Among the possible ways of coping with these uncertainties, we chose to use Latin Hypercube Sampling (LHS). This statistical technique reduces a computationally intractable problem to such an extent that is it possible to apply it, even with current personal computers. LHS requires that there is only one sample in each row and each column of the sampling matrix, where each row (multi-dimensional) corresponds to each uncertainty. LHS requires less than 10% of the sample runs needed by Monte Carlo approaches to achieve a stable solution. In our application LHS output provides model sampling for 4 input parameters: initial random volumes, UTM location (x and y), and bed friction. We developed a simple Octave script to link the output of LHS with TITAN2D. In this way, TITAN2D can run several times with successively different
Degrees of Truthfulness in Accepted Scientific Claims.
Directory of Open Access Journals (Sweden)
Ahmed Hassan Mabrouk
2008-12-01
Full Text Available Normal 0 false false false EN-MY X-NONE AR-SA MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} Abstract: Sciences adopt different methodologies in deriving claims and establishing theories. As a result, two accepted claims or theories belonging to two different sciences may not necessarily carry the same degree of truthfulness. Examining the different methodologies of deriving claims in the sciences of ʿaqīdah (Islamic Creed, fiqh (Islamic Jurisprudence and physics, the study shows that ʿaqīdah provides a holistic understanding of the universe. Physics falls short of interpreting physical phenomena unless these phenomena are looked at through the ʿaqīdah holistic view. Left to itself, error may creep into laws of physics due to the methodology of conducting the physical experiments, misinterpreting the experimental results, or accepting invalid assumptions. As for fiqh, it is found that apart from apparent errors, fiqh views cannot be falsified. It is, therefore, useful to consider ʿaqīdah as a master science which would permit all other sciences to live in harmony.
Classification of infrastructure networks by neighborhood degree distribution
Giustolisi, O; Ridolfi, L
2016-01-01
A common way of classifying network connectivity is the association of the nodal degree distribution to specific probability distribution models. During the last decades, researchers classified many networks using the Poisson or Pareto distributions. Urban infrastructures, like transportation (railways, roads, etc.) and distribution (gas, water, energy, etc.) systems, are peculiar networks strongly constrained by spatial characteristics of the environment where they are constructed. Consequently, the nodal degree of such networks spans very small ranges not allowing a reliable classification using the nodal degree distribution. In order to overcome this problem, we here (i) define the neighborhood degree, equal to the sum of the nodal degrees of the nearest topological neighbors, the adjacent nodes and (ii) propose to use neighborhood degree to classify infrastructure networks. Such neighborhood degree spans a wider range of degrees than the standard one allowing inferring the probabilistic model in a more re...
Degree distance and Gutman index of corona product of graphs
Directory of Open Access Journals (Sweden)
V. Sheeba Agnes
2015-09-01
Full Text Available In this paper, the degree distance and the Gutman index of the corona product of two graphs are determined. Using the results obtained, the exact degree distance and Gutman index of certain classes of graphs are computed.
Expectations of Adult Graduate Students in an Online Degree Program
Deggs, David; Grover, Kenda; Kacirek, Kit
2010-01-01
This study was conducted to examine the expectations of adult graduate students enrolled in an online degree program at a research university in the mid-South United States. Students who were pursuing their master of education degree were invited to participate in an e-Focus group regarding their expectations of the degree program. Focus groups…
Building Bridges: Higher Degree Student Retention and Counselling Support
Pearson, Mark
2012-01-01
This paper aims to contribute to the discussion on increasing retention rates in higher degree students. It presents evidence from the literature on the value of increasing counselling and mentoring care for higher degree research students. The creation of, and rationale for, a designated higher degree student counsellor-mentor role is described.…
Comparability of Degrees and Diplomas in International Law.
Dupuy, Rene Jean; Tunkin, Gregory
University exchanges, as well as the high degree of mobility that is a feature of certain professions, demand a system of international equivalences of degrees. This study deals with degrees in international law, and includes under this term: (1) public international law, defined as the body of rules that apply to states and others subject to…
The Applied Baccalaureate Degree: The Right Time and Place
Ruud, Collin M.; Bragg, Debra D.; Townsend, Barbara K.
2010-01-01
The applied baccalaureate degree, which integrates once-terminal applied associate degrees and course work into a four-year degree, is a relatively new phenomenon in higher education. This article presents findings from the first of two phases of research conducted--utilizing Kingdon's (1995) Multiple Streams framework--exploring the status of…
Facilitating Timely Completion of a College Degree with Optimization Technology
Dechter, Avi
2009-01-01
Students who pursue a bachelor's degree in four-year colleges and universities often take longer than four years to complete their degrees. The reasons for prolonging the time to degree seem to fall into three broad categories: part-time enrollment, deficiencies in academic readiness, and inadequate course planning. This paper focuses on the…
Correlation Degree and Correlation Coefficient of Multi- Output Functions
Institute of Scientific and Technical Information of China (English)
JU Gui-zhi; ZHAO Ya-qun
2005-01-01
We present definitions of the correlation degree and correlation coefficient of multi-output functions. Two relationships about the correlation degree of multi-output functions are proved. One is between the correlation degree and independency,the other is between the correlation degree and balance. Especially the paper discusses the correlation degree of affine multioutput functions. We demonstrate properties of the correlation coefficient of multi-output functions. One is the value range of the correlation coefficient, one is the relationship between the correlation coefficient and independency, and another is the sufficient and necessary condition that two multi-output functions are equivalent to each other.
Barth, Michael M.; Karagiannidis, Iordanis
2016-01-01
Many universities have implemented tuition differentials for certain undergraduate degree programs, citing higher degree costs or higher demand. However, most college accounting systems are unsuited for measuring cost differentials by degree program. This research outlines a method that can convert commonly available financial data to a more…
Barth, Michael M.; Karagiannidis, Iordanis
2016-01-01
Many universities have implemented tuition differentials for certain undergraduate degree programs, citing higher degree costs or higher demand. However, most college accounting systems are unsuited for measuring cost differentials by degree program. This research outlines a method that can convert commonly available financial data to a more…
Exact sampling of graphs with prescribed degree correlations
Bassler, Kevin E; Erdős, Péter L; Miklós, István; Toroczkai, Zoltán
2015-01-01
Many real-world networks exhibit correlations between the node degrees. For instance, in social networks nodes tend to connect to nodes of similar degree. Conversely, in biological and technological networks, high-degree nodes tend to be linked with low-degree nodes. Degree correlations also affect the dynamics of processes supported by a network structure, such as the spread of opinions or epidemics. The proper modelling of these systems, i.e., without uncontrolled biases, requires the sampling of networks with a specified set of constraints. We present a solution to the sampling problem when the constraints imposed are the degree correlations. In particular, we develop an efficient and exact method to construct and sample graphs with a specified joint-degree matrix, which is a matrix providing the number of edges between all the sets of nodes of a given degree, for all degrees, thus completely specifying all pairwise degree correlations, and additionally, the degree sequence itself. Our algorithm always pro...
Linear analysis of degree correlations in complex networks
Indian Academy of Sciences (India)
JU XIANG; TAO HU; YAN ZHANG; KE HU; YAN-NI TANG; YUAN-YUAN GAO; KE DENG
2016-12-01
Many real-world networks such as the protein–protein interaction networks and metabolic networks often display nontrivial correlations between degrees of vertices connected by edges. Here, we analyse the statistical methods used usually to describe the degree correlation in the networks, and analytically give linear relation in the degree correlation. It provides a simple and interesting perspective on the analysis of the degree correlation in networks, which is usefully complementary to the existing methods for degree correlation in networks. Especially, the slope in the linear relation corresponds exactly to the degree correlation coefficient in networks, meaning that it can not only characterize the level of degree correlation in networks, but also reflects the speed that the average nearest neighbours’ degree varies with the vertex degree. Finally, we applied our results to several real-world networks, validating the conclusions of the linear analysis of degree correlation. We hope that the work in this paper can be helpful for further understanding the degree correlation in complex networks.
Sandpile Dynamics Driven by Degree on Scale-Free Networks
Institute of Scientific and Technical Information of China (English)
YIN Yan-Ping; ZHANG Duan-Ming; PAN Gui-Jun; HE Min-Hua
2007-01-01
@@ We introduce a sandpile model driven by degree on scale-free networks, where the perturbation is triggered at nodes with the same degree. We numerically investigate the avalanche behaviour of sandpile driven by different degrees on scale-free networks. It is observed that the avalanche area has the same behaviour with avalanche size. When the sandpile is driven at nodes with the minimal degree, the avalanches of our model behave similarly to those of the original Bak-Tang-Wiesenfeld (BTW) model on scale-free networks. As the degree of driven nodes increases from the minimal value to the maximal value, the avalanche distribution gradually changes from a clean power law, then a mixture of Poissonian and power laws, finally to a Poisson-like distribution. The average avalanche area is found to increase with the degree of driven nodes so that perturbation triggered on higher-degree nodes will result in broader spreading of avalanche propagation.
Demircan, Süleyman; Ataş, Mustafa; Göktaş, Emre; Başkan, Burhan
2015-01-01
To compare the intraoperative performance and postoperative outcome after microcoaxial torsional phacoemulsification using either a Kelman or balanced phaco tip. Cataracts were treated using 2.2 mm microcoaxial torsional phacoemulsification using either a 45-degree mini-flared Kelman(®) or a 45-degree Intrepid(®) Balanced phaco tip. Intraoperative measurements included total ultrasound (US) time, cumulative dissipated energy (CDE), torsional US time, and balanced salt solution (BSS) use. The central endothelial cell density (ECD) and central corneal thickness (CCT) were evaluated preoperatively and postoperatively 1, 7, and 30d after surgery using noncontact specular microscopy. The 116 enrolled eyes (116 patients) were divided equally between the Kelman and balanced tip groups. Intraoperative measurements showed significantly less total US time, torsional US time, CDE, and BSS use in the balanced group than in Kelman group (Ptip provided more effective lens removal with less total US time, torsional time, CDE, and BSS use, as well as similar changes in ECD with a Kelman tip in all cataract grades. This special designed phaco tip for torsional phacoemulsification provides an alternative phaco tip for many surgeons' preference with straight phaco tip.
[The importance of master's degree and doctorate degree in general surgery].
Montalvo-Javé, Eduardo Esteban; Mendoza-Barrera, Germán Eduardo; Valderrama-Treviño, Alan Isaac; Alcántara-Medina, Stefany; Macías-Huerta, Nain Abraham; Tapia-Jurado, Jesús
2016-01-01
The Doctor of Philosophy is the highest academic degree that can be obtained in universities. Graduate Education Program in Medicine in Mexico is divided into 2 major categories: Medical Specialty and Master studies/Doctor of Philosophy. The objective of this study was to demonstrate the importance of master's degrees and Doctor of Philosophy in general surgery. A literature search in PubMed and Medline among others, from 1970 to 2015 with subsequent analysis of the literature reviews found. The physicians who conducted doctoral studies stand out as leaders in research, teaching and academic activities. Dual training with a doctorate medical specialty is a significant predictor for active participation in research projects within the best educational institutions. It is important to study a PhD in the education of doctors specialising in surgery, who show more training in teaching, research and development of academic activities. Currently, although there is a little proportion of students who do not finish the doctoral program, the ones who do are expected to play an important role in the future of medical scientific staff. It has been shown that most doctors with Doctor of Philosophy have wide range of career options. The importance of doctoral studies in the formation of general surgery is due to various reasons; the main one being comprehensively training physician scientists who can develop in clinical, teaching and research. Copyright © 2015 Academia Mexicana de Cirugía A.C. Published by Masson Doyma México S.A. All rights reserved.
Zink, M R
1989-03-01
A statewide study was done with five associate degree (ADN) and five baccalaureate degree (BSN) nursing programs in Georgia to examine the similarities and differences in curriculum based on a nationally used model. From this overall study, select content related to community/home health care was evaluated in the sample programs. Professional standards for community and home health care nursing practice, as well as other published literature on the topic, provided a basis to determine competence to practice. Data were collected through a taped telephone interview to all program chairpersons (N = 10) and mailed questionnaires to faculty involved with all required courses (N = 110). Content analyses of responses allowed for evaluation of frequency of these learning activities between ADN and BSN programs and among BSN programs in the areas of family, teaching, interdisciplinary collaboration, physical assessment, and leadership. Overall, the results indicated lack of conclusive data to support a distinct difference in these educational components between the ADN and BSN sample or among BSN programs. The study was intended to service as a basis for home health care curriculum development in the future.
An Unexplained 10 Degree - 40 Degree Shift in the Location of Some Diverse Neutral Atom Data at 1 AU
Collier, M; Simpson, D; Roberts, A; Szabo, A P; Fuselier, S; Wurz, P; Lee, M A; Tsurutani, B T; Collier, Michael R.; Moore, Thomas E.; Simpson, David; Roberts, Aaron; Szabo, Adam; Fuselier, Stephen; Wurz, Peter; Lee, Martin A.; Tsurutani, Bruce T.
2003-01-01
Four different data sets pertaining to the neutral atom environment at 1 AU are presented and discussed. These data sets include neutral solar wind and interstellar neutral atom data from IMAGE/LENA, energetic hydrogen atom data from SOHO/HSTOF and plasma wave data from the magnetometer on ISEE-3. Surprisingly, these data sets are centered between 262 degrees and 292 degrees ecliptic longitude, about 10 degrees - 40 degrees from the upstream interstellar neutral flow direction at 254 degrees resulting from the motion of the Sun relative to the local interstellar cloud. Some possible explanations for this offset, none of which is completely satisfactory, are discussed.
DEFF Research Database (Denmark)
Nielsen, H.B.; Mladenovska, Zuzana; Westermann, Peter
2004-01-01
A two-stage 68degreesC/55degreesC anaerobic degradation process for treatment of cattle manure was studied. In batch experiments, an increase of the specific methane yield, ranging from 24% to 56%, was obtained when cattle manure and its fractions (fibers and liquid) were pretreated at 68degrees......C for periods of 36, 108, and 168 h, and subsequently digested at 55degreesC. In a lab-scale experiment, the performance of a two-stage reactor system, consisting of a digester operating at 68degreesC with a hydraulic retention time (HRT) of 3 days, connected to a 55degreesC reactor with 12-day HRT......, was compared with a conventional single-stage reactor running at 55degreesC with 15-days HRT. When an organic loading of 3 g volatile solids (VS) per liter per day was applied, the two-stage setup had a 6% to 8% higher specific methane yield and a 9% more effective VS-removal than the conventional single...
Fracture toughness testing of V-4Cr-4Ti at 25{degrees}C and -196{degrees}C
Energy Technology Data Exchange (ETDEWEB)
Li, H.X.; Kurtz, R.J. [Pacific Northwest National Lab., Richland, WA (United States)
1996-10-01
Measurements of the fracture toughness of the production-scale heat (832665) of V-4Cr-4Ti have been performed at 25{degrees}C and {minus}196{degrees}C using compact tension (CT) specimens. Test specimens were vacuum annealed at either 1000{degrees}C for 1 hour (HT1) or 1050{degrees}C for two hours (HT2). Specimens given the HT1 treatment were annealed after final machining, whereas the HT2 specimens received the 1050{degrees}C anneal at Teledyne Wah Chang prior to final machining. Following machining HT2 specimens were then vacuum annealed at 180{degrees}C for two hours to remove hydrogen. Specimens treated using HT1 had a partially recrystallized microstructure and those treated using HT2 had a fully recrystallized microstructure. The fracture toughness at 25{degrees}C was determined by J-integral tests and at {minus}196{degrees}C by ASTM E 399 type tests. Toughness values obtained at {minus}196{degrees}C were converted to J-integral values for comparison to the 25{degrees}C data. The 25{degrees}C fracture toughness was very high with none of the specimens giving valid results per ASTM criteria. Specimens fractured by microvoid coalescence. The fracture toughness at {minus}196{degrees}C was much lower than that at 25{degrees}C and the fracture surface showed predominantly cleavage features. The present results show a transition from ductile to brittle behavior with decreasing test temperature which is not observed from one-third scale Charpy impact tests. The fracture toughness at {minus}196{degrees}C was still quite high, however, at about 75 kJ/m{sup 2}. Delaminations in planes normal to the thickness direction were seen at both test temperatures. Fracture surfaces inside the delaminations exhibited nearly 100% cleavage facets. The cause of the brittle delaminations was not determined, but will be a subject for further investigation.
Directory of Open Access Journals (Sweden)
Süleyman Demircan
2015-12-01
Full Text Available AIM: To compare the intraoperative performance and postoperative outcome after microcoaxial torsional phacoemulsification using either a Kelman or balanced phaco tip. METHODS: Cataracts were treated using 2.2 mm microcoaxial torsional phacoemulsification using either a 45-degree mini-flared Kelman® or a 45-degree Intrepid® Balanced phaco tip. Intraoperative measurements included total ultrasound (US time, cumulative dissipated energy (CDE, torsional US time, and balanced salt solution (BSS use. The central endothelial cell density (ECD and central corneal thickness (CCT were evaluated preoperatively and postoperatively 1, 7, and 30d after surgery using noncontact specular microscopy. RESULTS: The 116 enrolled eyes (116 patients were divided equally between the Kelman and balanced tip groups. Intraoperative measurements showed significantly less total US time, torsional US time, CDE, and BSS use in the balanced group than in Kelman group (P<0.05. The total US time, torsional US time, CDE, and BSS use were 17.45±14.53s, 16.63±13.97s, 6.38±5.26, and 48.21±17.21 mL in the Kelman group and 11.39 ± 9.60s, 10.90 ± 9.25s, 4.04 ± 3.42, and 41.36 ± 12.70 mL in the balanced group, respectively. CONCLUSION: Torsional phacoemulsification performed with a balanced tip provided more effective lens removal with less total US time, torsional time, CDE, and BSS use, as well as similar changes in ECD with a Kelman tip in all cataract grades. This special designed phaco tip for torsional phacoemulsification provides an alternative phaco tip for many surgeons' preference with straight phaco tip.
Analysis and perturbation of degree correlation in complex networks
Xiang, Ju; Hu, Tao; Zhang, Yan
2015-01-01
Degree correlation is an important topological property common to many real-world networks. In this paper, the statistical measures for characterizing the degree correlation in networks are investigated analytically. We give an exact proof of the consistency for the statistical measures, reveal the general linear relation in the degree correlation, which provide a simple and interesting perspective on the analysis of the degree correlation in complex networks. By using the general linear analysis, we investigate the perturbation of the degree correlation in complex networks caused by the addition of few nodes and the rich club. The results show that the assortativity of homogeneous networks such as the ER graphs is easily to be affected strongly by the simple structural changes, while it has only slight variation for heterogeneous networks with broad degree distribution such as the scale-free networks. Clearly, the homogeneous networks are more sensitive for the perturbation than the heterogeneous networks.
Most probable degree distribution at fixed structural entropy
Indian Academy of Sciences (India)
Ginestra Bianconi
2008-06-01
The structural entropy is the entropy of the ensemble of uncorrelated networks with given degree sequence. Here we derive the most probable degree distribution emerging when we distribute stubs (or half-edges) randomly through the nodes of the network by keeping fixed the structural entropy. This degree distribution is found to decay as a Poisson distribution when the entropy is maximized and to have a power-law tail with an exponent → 2 when the entropy is minimized.
On nth commutativity degree of some 3-Engel groups
Yahya, Zainab; Mohd Ali, Nor Muhainiah; Sarmin, Nor Haniza; Sabani, Muhammad Syafiq; Zakaria, Mardhiah
2013-04-01
This paper focuses on some 3-Engel groups. Suppose x and y are elements of a group G. The commutativity degree of a group is the probability that two elements in the group commute and is denoted by P(G). Meanwhile, the nth commutativity degree of a group G is the probability that for any pairs of x and y in G, xn and y commute. In this paper, the nth commutativity degree of some 3-Engel groups is determined.
Constrained multi-degree reduction with respect to Jacobi norms
Ait-Haddou, Rachid
2015-12-31
We show that a weighted least squares approximation of Bézier coefficients with factored Hahn weights provides the best constrained polynomial degree reduction with respect to the Jacobi L2L2-norm. This result affords generalizations to many previous findings in the field of polynomial degree reduction. A solution method to the constrained multi-degree reduction with respect to the Jacobi L2L2-norm is presented.
Empirical study on clique-degree distribution of networks.
Xiao, Wei-Ke; Ren, Jie; Qi, Feng; Song, Zhi-Wei; Zhu, Meng-Xiao; Yang, Hong-Feng; Jin, Hui-Yu; Wang, Bing-Hong; Zhou, Tao
2007-09-01
The community structure and motif-modular-network hierarchy are of great importance for understanding the relationship between structures and functions. We investigate the distribution of clique degrees, which are an extension of degree and can be used to measure the density of cliques in networks. Empirical studies indicate the extensive existence of power-law clique-degree distributions in various real networks, and the power-law exponent decreases with an increase of clique size.
Degrees of generators of phylogenetic semigroups on graphs
Buczyńska, Weronika; Kubjas, Kaie; Michalek, Mateusz
2011-01-01
We study the phylogenetic semigroups associated to trivalent graphs introduced by Buczy\\'nska and related to works of Wi\\'sniewski, Sturmfels, Xu, Manon, Jeffrey, Weitsmann. Our main theorem bounds the degree of the generators of a semigroup associated with a graph with first Betti number g by g + 1. Furthermore, this bound is effective for many graphs. In particular, the caterpillar graph with g loops has generators of degree g + 1 for even g and of degree g for odd g.
World Migration Degree Global migration flows in directed networks
2015-01-01
In this article we analyze the global flow of migrants from 206 source countries to 145 destination countries (2006-2010) and focus on the differences in the migration network pattern between destination and source counters as represented by its degree and weight distribution. Degree represents the connectivity of a country to the global migration network, and plays an important role in defining migration processes and characteristics. Global analysis of migration degree distribution offers a...
Study on safety cost and insurance degree of coal enterprises
Energy Technology Data Exchange (ETDEWEB)
Liang, M.; Han, C.; Yang, G. [Shandong Institute of Business and Technology, Yantai (China)
2007-06-15
The study confirmed the safety insurance degree of coal enterprises based on the various components of safety cost and analysed the connection between safety cost of component parts and safety insurance degree. Using Matlab software, a functional relationship was derived between mimesis curves of safety losing expenses, safety assets and management expenses, safety cost and safety insurance degree. The cost of a safety programme was forecast on the basis of this functional relationship. 3 figs., 3 tabs.
Fuzzy Association Degree with Delayed Time in Temporal Data Model
Institute of Scientific and Technical Information of China (English)
刘惟一; 郭陵芝; 宋宁
2001-01-01
This paper presents an expression of the semantic proximity. Based on the temporal data model, a method of the temporal approximation is given. Using these concepts, this paper provides an evaluated method of fuzzy and dynamic association degree with delayed time and a superposition method of association degrees. Particularly, by means of the fuzzy and dynamic association degree, the connection between the weather data of two regions can be discovered.
Brief 70 Nuclear Engineering Enrollments and Degrees, 2011 Summary Information
Energy Technology Data Exchange (ETDEWEB)
Dr. Don Johnson
2012-10-31
The survey includes degrees granted between September 1, 2010 and August 31, 2011. Enrollment information refers to the fall term 2011. The enrollment and degree data include students majoring in nuclear engineering or in an option program equivalent to a major. Thirty-two academic programs reported having nuclear engineering programs during 2011, and data was received from all thirty-two programs. The data for two nuclear engineering programs include enrollments and degrees in health physics options that are also reported in the health physics enrollments and degrees data.
Characterization of the degree of Musical non-Markovianity
Mannone, Maria
2013-01-01
Musical compositions could be characterized by a certain degree of memory, that takes into account repetitions and similarity of sequences of pitches, durations and intensities (the patterns). The higher the quantity of variations, the lower the degree of memory. This degree has never quantitatively been defined and measured. In physics, mathematical tools to quantify memory (defined as non-Markovianity) in quantum systems have been developed. The aim of this paper is to extend these mathematical tools to music, defining a general method to measure the degree of memory in musical compositions. Applications to some musical scores give results that agree with the expectations.
Brief 74 Nuclear Engineering Enrollments and Degrees Survey, 2014 Data
Energy Technology Data Exchange (ETDEWEB)
None, None
2015-03-15
The 2014 survey includes degrees granted between September 1, 2013 and August 31, 2014, and enrollments for fall 2014. There are three academic programs new to this year's survey. Thirty-five academic programs reported having nuclear engineering programs during 2014, and data were provided by all thirty-five. The enrollments and degrees data include students majoring in nuclear engineering or in an option program equivalent to a major. Two nuclear engineering programs have indicated that health physics option enrollments and degrees are also reported in the health physics enrollments and degrees survey.
Brief 77 Health Physics Enrollments and Degrees Survey, 2015 Data
Energy Technology Data Exchange (ETDEWEB)
None, None
2016-03-15
The 2015 Health Physics Enrollments and Degrees Survey reports degrees granted between September 1, 2014 and August 31, 2015. Enrollment information refers to the fall term 2015. Twenty-two academic programs were included in the survey universe, with all 22 programs providing data. The enrollments and degrees information comprises students majoring in health physics or in an option program equivalent to a major. The report includes enrollment information on undergraduate students and graduate students and information by degree level for post-graduation plans.
Brief 76 Nuclear Engineering Enrollments and Degrees Survey, 2015 Data
Energy Technology Data Exchange (ETDEWEB)
None, None
2016-03-15
The 2015 Nuclear Engineering Enrollments and Degrees Survey reports degrees granted between September 1, 2014 and August 31, 2015. Enrollment information refers to the fall term 2015. The enrollments and degrees data comprises students majoring in nuclear engineering or in an option program equivalent to a major. Thirty-five academic programs reported having nuclear engineering programs during 2015, and data was received from all thirty-five programs. The report includes enrollment information on undergraduate students and graduate students and information by degree level for post-graduation plans.
Joshi, Rajesh Subhash; Muley, Sonal Jayant
2017-01-01
To evaluate the effective phaco time (EPT), cumulative dissipated energy (CDE) and nucleus emulsification time (NET) as phaco parameters with 0- and 30-degree phaco tip. This prospective, interventional and observational case series included 294 patients scheduled for cataract removal by phacoemulsification technique. Patients with nuclear cataracts of grade 4 and 5 nuclear opalescence of Lens Opacities Classification System III were included in the study. Patients were consecutively allocated to phaco chop technique with 0-degree (0-degree group, n=147) and combined bevel up and down position using 30-degree phaco tip (combined bevel up/down group, n=147). The 0-degree group had phacoemulsification with 0-degree phaco tip, while the 30-degree group had chopping of the nucleus with bevel down phaco tip and emulsification of nuclear fragments was accomplished with bevel up tip. EPT, CDE, NET and intraoperative complications were noted and compared between the groups using analysis of variance. Average EPT, CDE and NET were lower in the 30-degree group than in the 0-degree group. However, no statistically significant difference was found in EPT (P=0.0733), CDE (P=0.0663) and NET (P=0.0633) between the two groups. No serious intraoperative complications were noted. The anterior chamber was maintained throughout the procedure in both groups. No patients had wound burn and miosis during the procedure. None of the patients developed bullous keratopathy, uveitis and cystoid macular edema during the follow-up period. Combined bevel up and down 30-degree tip can yield effective hard nucleus phacoemulsification. Bevel down tip of 30-degree helps in effective chopping and bevel up tip assists in emulsification of the nuclear fragments. Although combined bevel up and down 30-degree tip can yield effective hard nucleus phacoemulsification, no statistically significant difference was found in EPT, CDE and NET between the two groups.
Colon, Erica L.
2010-01-01
Online learning is becoming more prevalent in today's education and is changing the way students learn and instructors teach. This study proposed using an informative case study design within a multilevel conceptual framework as teacher candidates were learning to teach and use science inquiry while in an online post-baccalaureate science methods…
The Origins and Rise of Associate Degree Nursing Education.
Haase, Patricia T.
This book offers an analytical history of the associate degree nursing (ADN) program and the role of associate degree nurses in the U.S. health care system. It covers the period from just after World War II to the middle of the 1980s. The support of the W. K. Kellogg Foundation and the Federal Government for ADN education is highlighted. Chapter…
On Self-Mapping Degrees of S3- Geometry Manifolds
Institute of Scientific and Technical Information of China (English)
Xiao Ming DU
2009-01-01
In this paper we determined all of the possible self-mapping degrees of the manifolds with S3-geometry, which are supposed to be all 3-manifolds with finite fundamental groups. This is a part of a project to determine all possible self-mapping degrees of all closed orientable 3-manifold in Thurston's picture.
Experiences with the Development of an Undergraduate Degree in Ecohydrology
Saito, L.; Walker, M.; Markee, N.
2014-12-01
In 2007, the Department of Natural Resources and Environmental Science established the first undergraduate degree in Ecohydrology in the United States. The degree was designed to prepare students for careers as hydrologists while also including coursework equivalent to a minor in ecology (UNR does not officially offer a minor in ecology). The development of the major was intended to provide students with useful skills and training for the job market, and also to increase enrollment in the University's water-related undergraduate majors. The Department also established an Ecohydrology minor. Since the degree was established, average enrollment in the major has been almost two times higher than the previous Watershed Science option in Environmental Science (the closest comparable degree offering at UNR). The Department has graduated 19 students as of May 2014, and an additional 8 students have graduated with the Ecohydrology minor. Several Ecohydrology graduates have gone on to graduate degrees, and most of the remainder are employed in water-related areas. The students have established an Ecohydrology Club at UNR and are active in organizing water-related activities to do together. This presentation will describe the development of the degree, its implementation, and challenges and opportunities for carrying out an undergraduate degree in Ecohydrology. It will also discuss potential development of a 5-year Bachelor of Science-Master of Science (BS-MS) degree in Ecohydrology.
Attitudes of Prospective Human Resource Personnel towards Distance Learning Degrees
Udegbe, I. Bola
2012-01-01
This study investigated the attitudes of Prospective Human Resource Personnel toward degrees obtained by distance learning in comparison to those obtained through conventional degree program. Using a cross-sectional survey design, a total of 215 postgraduate students who had been or had potential to be involved in the hiring process in their…
Annealing properties of potato starches with different degrees of phosphorylation
DEFF Research Database (Denmark)
Muhrbeck, Per; Svensson, E
1996-01-01
Changes in the gelatinization temperature interval and gelatinization enthalpy with annealing time at 50 degrees C were followed for a number of potato starch samples, with different degrees of phosphorylation, using differential scanning calorimetry. The gelatinization temperature increased with...... and crystalline structure of amylopectin helices. (C) 1997 Elsevier Science Ltd....
Formality Degrees of Language from the Perspective of Register
Institute of Scientific and Technical Information of China (English)
ZHU Xia
2014-01-01
The three variables-field, mode and tenor form the integrated system of a register which has the function of reflecting culture and language features. Via the analysis of the three dimensions of register, it intends to explore the influence of register on the formality degrees of language, so that the proper formality degrees of language are chosen during communication.
On the Lorentz degree of a product of polynomials
Ait-Haddou, Rachid
2015-01-01
In this note, we negatively answer two questions of T. Erdélyi (1991, 2010) on possible lower bounds on the Lorentz degree of product of two polynomials. We show that the correctness of one question for degree two polynomials is a direct consequence of a result of Barnard et al. (1991) on polynomials with nonnegative coefficients.
Declining MIS Enrollment: The Death of the MIS Degree?
Saunders, Gary; Lockridge, T. Maurice
2011-01-01
There is little doubt that enrollments in MIS degree programs have been declining since the recession in the technical industry in 2001. Reagan's research (2008) indicates that enrollments in MIS degree programs is only about 25% of the 2001 level. Many MIS (IS) programs have been abandoned or combined with other related programs. While many…
Higher Degree Research Supervision: From Practice toward Theory
Maxwell, T. W.; Smyth, Robyn
2011-01-01
This paper presents our theorizing about the complex nature of higher degree research supervision. The intent is to make a contribution to the current debates about higher education generally, and supervision of higher degree research students in particular. We add to the pedagogy of supervision by extending its scope to and beyond the supervisory…
Rethinking Graduation and Time to Degree: A Fresh Perspective
Yue, Hongtao; Fu, Xuanning
2017-01-01
Graduation and time to degree are paramount concerns in higher education today and have caught the attention of policy makers, educators and researchers in recent years. However, our understanding is limited regarding the factors related to graduation and time to degree beyond students' pre-college characteristics (demographics and academic…
The Output of Canadian Universities as Measured by Graduate Degrees
Farine, Avigdor
1973-01-01
Aim of this study was to determine a common unit of graduate degrees granted per province in proportion to the labor force, that is, to compare the graduate degrees/labor force ratios (1) between Quebec and the other provinces and (2) between the French-language and the English-language universities in Quebec. (Author/CB)
Gender Division in Sociology Degree Programmes--Causes and Effects?
Witt, Ann-Katrin
2009-01-01
In spite of engagement and efforts to bring about gender equality in Swedish universities, gender division paradoxically appears in both old and new degree programs and academic disciplines. In recent years there has been a tendency for higher education students to enrol in degree programmes rather than in single subject courses. Due to the…
The Impact of Dual Enrollment Participation on Degree Attainment
Westcott, Peggy Anne
2009-01-01
Dual enrollment programs continue to grow in the United States; however, little empirical research examines the relationship between this high school experience and future college success and degree attainment. This study examines degree attainment for first-time beginning students who began their postsecondary education at a Virginia Community…
Top 100 Undergraduate Degree Producers--Interpreting the Data
Borden, Victor M. H.
2008-01-01
This article presents "Diverse Online's" annual analysis of the Top 100 degrees conferred to African-American students. The tables in this edition of the Top 100 analysis reflect degrees conferred during the 2006-2007 academic year as of mid March 2008 by the vast majority of U.S. postsecondary institutions to the Department of Education's…
Lessons from VET Providers Delivering Degrees: Case Studies. Support Document
Callan, Victor J.; Bowman, Kaye
2015-01-01
The recent growth in the number of registered vocational education and training (VET) providers delivering associate degrees and bachelor degrees in their own right has been well publicized. However, little is known about why these VET providers have made this transition, what support is being provided to their staff and students, and how the…
Families of Fixed Degree Graphs for Processor Interconnection
DEFF Research Database (Denmark)
Jerrum, Mark; Skyum, Sven
1984-01-01
A construction is presented which, given a fixed undirected graph of low degree and small average path length, yields an infinite sequence of low diameter graphs of increasing order and fixed degree. As examples of the construction, infinite sequences of low diameter graphs are presented with deg...
The Real and the Fake Degree and Diploma Mills
Contreras, Alan; Gollin, George
2009-01-01
The recent release of a list of over 9,000 people who bought degrees from St. Regis "University" has helped bring into focus a problem that legitimate institutions like to ignore: An enormous number of people who could be getting real college credentials are buying degree- and diploma-mill ones instead. This causes damage that goes beyond the…
Investigating MBA Degrees Earned by Women: A Decade of Change
McConnell, Cheryl; Rush, Douglas; Gartland, Myles
2016-01-01
The authors examined master of business administration (MBA) degrees earned by women at U.S. higher education institutions at three specific years spanning a decade: 2003, 2008, and 2013 to determine whether there was a significant difference in the percentage of MBA degrees earned by women based on the independent variables of institutional type,…
Investigating MBA Degrees Earned by Women: A Decade of Change
McConnell, Cheryl; Rush, Douglas; Gartland, Myles
2016-01-01
The authors examined master of business administration (MBA) degrees earned by women at U.S. higher education institutions at three specific years spanning a decade: 2003, 2008, and 2013 to determine whether there was a significant difference in the percentage of MBA degrees earned by women based on the independent variables of institutional type,…
Attitudes of Prospective Human Resource Personnel towards Distance Learning Degrees
Udegbe, I. Bola
2012-01-01
This study investigated the attitudes of Prospective Human Resource Personnel toward degrees obtained by distance learning in comparison to those obtained through conventional degree program. Using a cross-sectional survey design, a total of 215 postgraduate students who had been or had potential to be involved in the hiring process in their…
A Geometric Approach for Multi-Degree Spline
Institute of Scientific and Technical Information of China (English)
Xin Li; Zhang-Jin Huang; Zhao Liu
2012-01-01
Multi-degree spline (MD-spline for short) is a generalization of B-spline which comprises of polynomial segments of various degrees.The present paper provides a new definition for MD-spline curves in a geometric intuitive way based on an efficient and simple evaluation algorithm.MD-spline curves maintain various desirable properties of B-spline curves,such as convex hull,local support and variation diminishing properties.They can also be refined exactly with knot insertion.The continuity between two adjacent segments with different degrees is at least C1 and that between two adjacent segments of same degrees d is Cd-1.Benefited by the exact refinement algorithm,we also provide several operators for MD-spline curves,such as converting each curve segment into Bézier form,an efficient merging algorithm and a new curve subdivision scheme which allows different degrees for each segment.
The Degree of Symmetry of Certain Compact Smooth Manifolds Ⅱ
Institute of Scientific and Technical Information of China (English)
Bin XU
2007-01-01
We give the sharp estimates for the degree of symmetry and the semi-simple degree of symmetry of certain compact fiber bundles with non-trivial four dimensional fibers in the sense of cobordism, by virtue of the rigidity theorem of harmonic maps due to Schoen and Yau (Topology, 18, 1979, 361-380). As a corollary of this estimate, we compute the degree of symmetry and the semi-simple degree of symmetry of CP2 × V, where V is a closed smooth manifold admitting a real analytic Riemannian metric of non-positive curvature. In addition, by the Albanese map, we obtain the sharp estimate of the degree of symmetry of a compact smooth manifold with some restrictions on its one dimensional cohomology.
The effect of Internet separation degree time sensitivity on transmission
Institute of Scientific and Technical Information of China (English)
ZHAO Hai; SU Wei-ji; XU Ye; ZHANG Xin
2006-01-01
Separation degree is a standard measure for complex network research.Whatever its scale or its increase makes the Interact take on a complex network character.Because of the development of complex network theory and the continuous evolution of the Internet,it is a key problem that uses complex network theory to research the Internet nowadays.In this paper,the Internet separation degree is put forward.The time series stochastic process model of the Internet separation degree is established.According to actual data,the Internet separation degree time sensitivity model (ISDTSM) is established and the effect of time sensitivity of the Internet separation degree to the Intemet IP level transmission is computed.Finally the Internet separation and IP transmission during 2008 Beijing Olympic Games were forecasted by using the model.
The Degree Semantics Parameter and cross-linguistic variation
Directory of Open Access Journals (Sweden)
M. Ryan Bochnak
2015-03-01
Full Text Available The standard degree analysis of gradability in English holds that the function of degree morphology, such as the comparative, measure phrases, and degree adverbs, is to bind a degree variable located in the lexical semantics of gradable predicates. In this paper, I investigate gradation structures in Washo (isolate/Hokan, and claim that this language systematically lacks degree morphology of this sort. I propose that this gap in the functional inventory of Washo stems from a parameter on whether languages are able to introduce degree variables into the logical form that can be bound by such operators, providing further cross-linguistic support for a similar proposal made by Beck et al. (2009 for Motu (Austronesian. Specifically, I argue that gradable predicates in Washo do not introduce a degree variable. Consequently, if we assume that gradable predicates in English are type ⟨d, ⟨e, t⟩⟩, then Washo and English must differ in their lexical semantics for gradable predicates. Alternatively, if we want to maintain lexical uniformity between the two languages (i.e., that gradable predicates in English don’t themselves introduce degrees, then we must place variation at the level of a grammatical mechanism that introduces degrees in English for degree operators to bind, but which is lacking in Washo. The results of this investigation thus inform questions about the nature of cross-linguistic variation, specifically the division of labor between variation in functional categories and the lexicon. http://dx.doi.org/10.3765/sp.8.6 BibTeX info
Richardson, R. M.
2001-12-01
One could argue from a business prospective that colleges and universities are not working hard enough to train students for life in the business and civic world, at either the undergraduate or graduate levels. What is it that employers are looking for in students? How different are the skills and attributes employers are looking for between undergraduate and graduate students? How unique are the geosciences in this respect? At the undergraduate level recruiters have spoken loud and clear about what they want. According to the dean of the business school here at the University of Arizona, recruiters at the undergraduate degree level in business base less than half of their hiring decision on specific content knowledge in the discipline, and correspondingly more than half on the so-called soft skills ... ability to apply knowledge in new situations, ability to think critically, ability to communicate with others in both written and oral forms, ability to work in teams, ability to work with a diverse set of employees and customers (especially, but not limited to, the global job market), etc. How true is this at the graduate level, where students have typically spent 4-6 years specializing in a discipline? Is there a set of fundamental knowledge that employers are looking for at the graduate level? Are the so-called soft skills correspondingly less important? I will present results from a survey of graduate programs and industry recruiters addressing these questions, and highlight the areas of overlap and difference between undergraduates and graduates looking for jobs. I will concentrate specifically on jobs in the oil industry and on both masters and Ph.D. programs.
Southern Regional Education Board, Atlanta, GA.
This publication is a compilation of highlights from papers presented at the Associate Degree Nursing (ADN) project's regional conferences during 1983-84. Papers address pertinent issues in ADN education and practice. "AD Education: Are the Parameters Real?" (Julia Perkins) examines the parameters of associate degree nursing education from a…
Nicholson, Starr; Mulvey, Patrick
2011-01-01
The Statistical Research Center of the American Institute of Physics conducts an annual census from October through February of all departments that offer degrees in astronomy (78) in the United States. Astronomy departments consist of stand-alone degree-granting departments (39) and departments that are administered along with a physics program…
Heffernan, Michael; Jons, Heike
2007-01-01
The universities of Oxford and Cambridge had developed different attitudes towards the award of honorary degrees through the early and middle decades of the twentieth century. Recently, both have adopted a similar cautious and apolitical stance. This essay describes the role of honorary degrees in the production and reproduction of their cultural…
Network controllability is determined by the density of low in-degree and out-degree nodes.
Menichetti, Giulia; Dall'Asta, Luca; Bianconi, Ginestra
2014-08-15
The problem of controllability of the dynamical state of a network is central in network theory and has wide applications ranging from network medicine to financial markets. The driver nodes of the network are the nodes that can bring the network to the desired dynamical state if an external signal is applied to them. Using the framework of structural controllability, here, we show that the density of nodes with in degree and out degree equal to one and two determines the number of driver nodes in the network. Moreover, we show that random networks with minimum in degree and out degree greater than two, are always fully controllable by an infinitesimal fraction of driver nodes, regardless of the other properties of the degree distribution. Finally, based on these results, we propose an algorithm to improve the controllability of networks.
Vague inclusion degree%Vague集的包含度
Institute of Scientific and Technical Information of China (English)
朱英丽; 杨勇; 朱晓钟; 席元鸿
2011-01-01
Vague集是Zadeh模糊集的一种推广形式,同样Vague集的包含度也是模糊集包含度的一种扩展.针对现有文献涉及到的Vague集的包含度只是属于[0,1]区间的一个模糊值的问题,根据Vague集理论的基本思想拓展了Vague集的包含度,提出一种新的Vague集的包含度定义,以体现Vague集的拓展意义.提出并验证了四类Vague集的包含度的计算公式,同时给出此Vague集包含度与模糊集包含度之间关系的定理.%Vague set is one of generalizations of Zadeh's fuzzy set, and Vague inclusion degree is also an extension of fuzzy inclusion degree.For the definition of Vague inclusion degree existed in present references is only a fuzzy value, this paper proposes a new definition of Vague inclusion degree to reflect the expansion meaning of the Vague set.This new Vague inclusion degree based on the notion of vague set extends the conception of Vague inclusion degree and fully expresses the advantage of Vague set. Four classes of Vague inclusion degree formulas are proposed and verified, a theorem about the relationship between Vague inclusion degree and fuzzy inclusion degree is given.
The nth commutativity degree of some 2-Engel groups
Yahya, Zainab; Mohd Ali, Nor Muhainiah; Sarmin, Nor Haniza; Johari, Nor Azwin
2013-04-01
Suppose x and y are elements of a group G. The commutativity degree of a group G is defined as the total number of pair (x, y) for which x and y commute divided by the total number of pair (x, y) which is possible. Moreover, the nth commutativity degree of a group G is the total number of pair (x, y) for which xn and y commute divided by the total number of (x, y) which is possible. In this research, all 2-Engel groups of order at most 25 are first determined. Then, the nth commutativity degree of those groups are computed.
Community Structure Detection Algorithm Based on the Node Belonging Degree
Directory of Open Access Journals (Sweden)
Jian Li
2013-07-01
Full Text Available In this paper, we propose a novel algorithm to identify communities in complex networks based on the node belonging degree. First, we give the concept of the node belonging degree, and then determine whether a node belongs to a community or not according to the belonging degree of the node with respect to the community. The experiment results of three real-world networks: a network with three communities with 19 nodes, Zachary Karate Club and network of American college football teams show that the proposed algorithm has satisfactory community structure detection.
Nonlinearity degree of short-term heart rate variability signal
Institute of Scientific and Technical Information of China (English)
BIAN Chunhua; NING Xinbao
2004-01-01
A nonlinear autoregressive (NAR) model is built to model the heartbeat interval time series and the optimum model degree is proposed to be taken to evaluate the nonlinearity degree of heart rate variability (HRV). A group of healthy persons are studied and the results indicate that this method can effectively get nonlinear information from short (6-7 min) heartbeat series and consequently reflect the degree of heart rate variability, which supplies convenience in clinical application. Finally, a comparison with the traditional time domain method shows that the NAR model method can reflect the complexity of the whole signal and lessen the influence of noise and instability in the signal.
Markov Chain-based Degree Distributions of Evolving Networks
Institute of Scientific and Technical Information of China (English)
Xiang Xing KONG; Zhen Ting HOU; Ding Hua SHI; Quan Rong CHEN; Qing Gui ZHAO
2012-01-01
In this paper,we study a class of stochastic processes,called evolving network Markov chains,in evolving networks. Our approach is to transform the degree distribution problem of an evolving network to a corresponding problem of evolving network Markov chains.We investigate the evolving network Markov chains,thereby obtaining some exact formulas as well as a precise criterion for determining whether the steady degree distribution of the evolving network is a power-law or not.With this new method,we finally obtain a rigorous,exact and unified solution of the steady degree distribution of the evolving network.
Points of Low Degree on Smooth Plane Curves
Debarre, O; Debarre, Olivier; Klassen, Matthew
1992-01-01
The purpose of this note is to provide some applications of Faltings' recent proof of S. Lang's conjecture to smooth plane curves. Let $C$ be a smooth plane curve defined by an equation of degree $d$ with integral coefficients. We show that for $d\\ge 7$, the curve $C$ has only finitely many points whose field of definition has degree $\\le d-2$ over $Q$, and that for $d\\ge 8$, all but finitely many points of $C$ whose field of definition has degree $\\le d-1$ over $Q$ arise as points of intersection of rational lines through rational points of $C$.
Asymptotic of trees with a prescribed degree sequence and applications
Broutin, Nicolas
2011-01-01
Let $t$ be a rooted tree and $n_i(t)$ the number of nodes in $t$ having $i$ children. The degree sequence $(n_i(t),i\\geq 0)$ of $t$ satisfies $\\sum_{i\\ge 0} n_i(t)=1+\\sum_{i\\ge 0} in_i(t)=|t|$, where $|t|$ denotes the number of nodes in $t$. In this paper, we consider trees sampled uniformly among all trees having the same degree sequence $\\ds$; we write $`P_\\ds$ for the corresponding distribution. Let $\\ds(\\kappa)=(n_i(\\kappa),i\\geq 0)$ be a list of degree sequences indexed by $\\kappa$ corresponding to trees with size $\
Subgroup s-commutativity degree of finite groups
Otera, Daniele Ettore
2010-01-01
In a recent contribution, Tarnauceanu has introduced the subgroup commutativity degree of a finite group, adapting to the context of the lattice theory some ideas and some techniques, which were known by the studies of Lescot on the commutativity degree. This new notion allows us to detect how a group is far from having all subgroups which are permutable. In the present paper we investigate a probability, which generalizes the subgroup commutativity degree, and find some numerical restrictions on groups which are rich in S-permutable subgroups in the sense of Kegel.
Nonconvexity of the set of hypergraph degree sequences
Liu, Ricky Ini
2012-01-01
It is well known that the set of possible degree sequences for a graph on $n$ vertices is the intersection of a lattice and a convex polytope. We show that the set of possible degree sequences for a $k$-uniform hypergraph on $n$ vertices is not the intersection of a lattice and a convex polytope for $k \\geq 3$ and $n \\geq k+13$. We also show an analogous nonconvexity result for the set of degree sequences of $k$-partite $k$-uniform hypergraphs and the generalized notion of $\\lambda$-balanced $k$-uniform hypergraphs.
The number of nilpotent semigroups of degree 3
Distler, Andreas
2012-01-01
A semigroup is \\emph{nilpotent} of degree 3 if it has a zero, every product of 3 elements equals the zero, and some product of 2 elements is non-zero. It is part of the folklore of semigroup theory that almost all finite semigroups are nilpotent of degree 3. We give formulae for the number of nilpotent semigroups of degree 3 with $n\\in\\N$ elements up to equality, isomorphism, and isomorphism or anti-isomorphism. Likewise, we give formulae for the number of nilpotent commutative semigroups with $n$ elements up to equality and up to isomorphism.
Marketing and Retention Strategies for Adult Degree Programs
Brown, Joann A.
2004-01-01
Four marketing strategies are critical to the success of adult degree programs: integrating marketing, knowing your students (research), shaping programs and services for adults, and staying the course (retention).
Climate Prediction Center Weekly Corn Growing Degree Days
National Oceanic and Atmospheric Administration, Department of Commerce — A corn growing degree day (GDD) is an index used to express crop maturity. The index is computed by subtracting a base temperature of 50?F from the average of the...
Derivations and Generating Degrees in the Ring of Arithmetical Functions
Indian Academy of Sciences (India)
Alexandru Zaharescu; Mohammad Zaki
2007-05-01
In this paper we study a family of derivations in the ring of arithmetical functions of several variables over an integral domain, and compute the generating degrees of the ring of arithmetical functions over the kernel of these derivations.
On Effective Degrees of Freedom in the Early Universe
Husdal, Lars
2016-01-01
We explore the effective degrees of freedom in the early Universe, from before the electroweak scale at a few femtoseconds after the Big Bang, until the last positrons disappeared a few minutes later. We first look at the established concepts of effective degrees of freedom for energy density, pressure and entropy density, and introduce effective degrees of freedom for number density as well. We discuss what happens with particle species as their temperature cools down from relativistic to semi- and non-relativistic temperatures, and then annihilates completely. This will affect the pressure as well as the entropy per particle. We also look at the transition from a quark-gluon plasma to a hadron gas. Using a list a known hadrons, we use a "cross-over" temperature of 214 MeV where the effective degrees of freedom for a quark-gluon plasma equals that of a hadron gas.
Degree-based attacks and defense strategies in complex networks
Yehezkel, Aviv; Cohen, Reuven
2012-12-01
We study the stability of random scale-free networks to degree-dependent attacks. We present analytical and numerical results to compute the critical fraction pc of nodes that need to be removed for destroying the network under this attack for different attack parameters. We study the effect of different defense strategies, based on the addition of a constant number of links on network robustness. We test defense strategies based on adding links to either low degree, middegree or high degree nodes. We find using analytical results and simulations that the middegree nodes defense strategy leads to the largest improvement to the network robustness against degree-based attacks. We also test these defense strategies on an internet autonomous systems map and obtain similar results.
Maiorana-McFarland class: Degree optimization and algebraic properties
DEFF Research Database (Denmark)
Pasalic, Enes
2006-01-01
in the original class. Preserving a high-nonlinearity value immanent to the original construction method, together with the degree optimization gives in many cases functions with cryptographic properties superior to all previously known construction methods. This approach is then used to increase the algebraic......In this paper, we consider a subclass of the Maiorana-McFarland class used in the design of resilient nonlinear Boolean functions. We show that these functions allow a simple modification so that resilient Boolean functions of maximum algebraic degree may be generated instead of suboptimized degree...... degree of functions in the extended Maiorana-McFarland (MM) class (nonlinear resilient functions F : GF (2)(n) -> GF (2)(m) derived from linear codes). We also show that in the Boolean case, the same subclass seems not to have an optimized algebraic immunity, hence not providing a maximum resistance...
On Effective Degrees of Freedom in the Early Universe
Directory of Open Access Journals (Sweden)
Lars Husdal
2016-12-01
Full Text Available We explore the effective degrees of freedom in the early Universe, from before the electroweak scale at a few femtoseconds after the Big Bang until the last positrons disappeared a few minutes later. We look at the established concepts of effective degrees of freedom for energy density, pressure, and entropy density, and introduce effective degrees of freedom for number density as well. We discuss what happens with particle species as their temperature cools down from relativistic to semi- and non-relativistic temperatures, and then annihilates completely. This will affect the pressure and the entropy per particle. We also look at the transition from a quark-gluon plasma to a hadron gas. Using a list a known hadrons, we use a “cross-over” temperature of 214 MeV, where the effective degrees of freedom for a quark-gluon plasma equals that of a hadron gas.
The effects of degree correlations on network topologies and robustness
Institute of Scientific and Technical Information of China (English)
Zhao Jing; Tao Lin; Yu Hong; Luo Jian-Hua; Cao Zhi-Wei; Li Yi-Xue
2007-01-01
Complex networks have been applied to model numerous interactive nonlinear systems in the real world. Knowledge about network topology is crucial to an understanding of the function, performance and evolution of complex systems. In the last few years, many network metrics and models have been proposed to investigate the network topology, dynamics and evolution. Since these network metrics and models are derived from a wide range of studies, a systematic study is required to investigate the correlations among them. The present paper explores the effect of degree correlation on the other network metrics through studying an ensemble of graphs where the degree sequence (set of degrees) is fixed.We show that to some extent, the characteristic path length, clustering coefficient, modular extent and robustness of networks are directly influenced by the degree correlation.
Marketing and Retention Strategies for Adult Degree Programs
Brown, Joann A.
2004-01-01
Four marketing strategies are critical to the success of adult degree programs: integrating marketing, knowing your students (research), shaping programs and services for adults, and staying the course (retention).
Accumulated Growing Degree Days, Contiguous United States, 1981 - Current Year
U.S. Geological Survey, Department of the Interior — The USA National Phenology Network has available a series of gridded products enabling researchers to analyze current year Accumulated Growing Degree Days (AGDD)...
Coral Reef Watch, Degree Heating Weeks, 50 km
National Oceanic and Atmospheric Administration, Department of Commerce — NOAA Coral Reef Watch distributes Degree Heating Week products using a combination of the POES AVHRR Global Area Coverage data, and data from a climatological...
Customer service factors of a Telematic Learning BBA degree ...
African Journals Online (AJOL)
Customer service factors of a Telematic Learning BBA degree. ... accessibility of quality tertiary education via distance learning programmes of foreign institutions. ... Continuous client satisfaction research is conducted and this article reports ...
Degree of myopia in relation to intelligence and educational level.
Teasdale, T W; Fuchs, J; Goldschmidt, E
1988-12-10
Intelligence test scores and educational levels were compared for 5943 myopic and 9891 non-myopic 18-year-old men being drafted for military service in Denmark. The former were grouped by degree of myopia, in the range -0.25 diopters (D) to -7.75 D, according to the power of correcting lenses required. Myopes of all degrees had significantly higher test scores and educational levels than non-myopes. However, the relation of these two variables to degree of myopia was not linear; for both variables there were no significant differences among myopia groups in the range -2.0 to -7.75 D. Whereas factors associated with intelligence and education seem to be important in triggering the onset of myopia, they seem to be much less important in determining the degree to which myopia progresses.
Change in Annual Heating and Cooling Degree Days by State
U.S. Environmental Protection Agency — This service show changes in heating and cooling degree days by state in the US. Both layers in this service were created by comparing the first 60 years of...
SALT INTAKE IN FIRST DEGREE RELATIONS OF l-IYPERTENSIVE ...
African Journals Online (AJOL)
2004-10-10
Oct 10, 2004 ... Design: A comparative study of STT and salt intake in the first degree offspring of hypertensive and ... of both(3). Meyer et al (7) have demonstrated erythrocyte .... Table 1 shows the baseline characteristics of participants.
Project Work by Students for First Degree: An Appraisal | Ekwenze ...
African Journals Online (AJOL)
Project Work by Students for First Degree: An Appraisal. ... The proper order, format and form for legal research and writing must be observed. ... law faculties should have websites that will enable supervisors cross-check projects for originality.
Energy Technology Data Exchange (ETDEWEB)
Bryson, Amanda J.; Woodley, Christa M.; Karls, Rhonda K.; Hall, Kathleen D.; Weiland, Mark A.; Deng, Zhiqun; Carlson, Thomas J.; Eppard, Matthew B.
2013-04-30
Animal telemetry, which requires the implantation of passive transponders or active transmitters, is used to monitor and assess fish stock and conservation to gain an understanding of fish movement and behavior. As new telemetry technologies become available, studies of their effects on species of interest are imperative as is development of implantation techniques. In this study, we investigated the effects of bevel rotation (0-, 90-, 180-degree axis rotation) on wound extent, tag loss, and wound healing rates in juvenile Chinook salmon injected with an 8-gauge needle, which is required for implantation of the novel injectable Juvenile Salmon Acoustic Telemetry Systems (JSATS) acoustic transmitter or large passive integrated transponder (PIT) tags. Although the injection sites were not closed after injection (e.g., with sutures or glue), there were no mortalities, dropped tags, or indications of fungus, ulceration, and/or redness around the wound. On Day 0 and post-implantation Day 7, the 90-degree bevel rotation produced smaller wound extent than the 180-degree bevel rotation. No axis rotation (0-degrees) resulted in the PIT tag frequently misleading or falling out upon injection. The results of this study indicated the 90-degree bevel rotation was the more efficient technique, produced less wound extent. Given the wound extent compared to size of fish, we recommend researchers should consider a 90-degree rotation over the 180-degree rotation in telemetry studies. Highlights •Three degrees of needle rotation were examined for effects in Chinook salmon. •Mortality, tag loss, wound extent, healing, and infection indicators were measured. •There were no mortalities, tag loss, or indications of infection. •The 90-degree needle rotation through Day 7 produced the smallest wound extent.
Fractional Path Coloring in Bounded Degree Trees with Applications
Caragiannis, I.; Ferreira, Afonso; Kaklamanis, C.; Pérennes, Stéphane; Rivano, Hervé
2010-01-01
OPTx-editorial-board=yes, OPTx-proceedings=yes, OPTx-international-audience=yes; International audience; This paper studies the natural linear programming relaxation of the path coloring problem. We prove constructively that finding an optimal fractional path coloring is Fixed Parameter Tractable (FPT), with the degree of the tree as parameter: the fractional coloring of paths in a bounded degree trees can be done in a time which is linear in the size of the tree, quadratic in the load of the...
The degree distribution of fixed act-size collaboration networks
Indian Academy of Sciences (India)
Qinggui Zhao; Xiangxing Kong; Zhenting Hou
2009-11-01
In this paper, we investigate a special evolving model of collaboration net-works, where the act-size is fixed. Based on the first-passage probability of Markov chain theory, this paper provides a rigorous proof for the existence of a limiting degree distribution of this model and proves that the degree distribution obeys the power-law form with the exponent adjustable between 2 and 3.
Characterization Parameters for a Three Degree of Freedom Mobile Robot
2013-12-01
International Conference on Advanced Intelligent Mechatronics , Monterey, CA, USA. [5] E. Shuey and M. Shuey, “Modeling and simulation for a surf zone robot ...NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS CHARACTERIZATION PARAMETERS FOR A THREE DEGREE OF FREEDOM MOBILE ROBOT by Jessica L. Fitzgerald...Z39.18 12-20-2013 Master’s Thesis 2102-06-01—2104-10-31 CHARACTERIZATION PARAMETERS FOR A THREE DEGREE OF FREEDOM MOBILE ROBOT Jessica L. Fitzgerald
FRACTIONAL DIFFUSION EQUATIONS WITH INTERNAL DEGREES OF FREEDOM
Institute of Scientific and Technical Information of China (English)
Luis Vázquez
2003-01-01
We present a generalization of the linear one-dimensional diffusion equation by combining the fractional derivatives and the internal degrees of freedom. The solutions are constructed from those of the scalar fractional diffusion equation. We analyze the interpolation between the standard diffusion and wave equations defined by the fractional derivatives. Our main result is that we can define a diffusion process depending on the internal degrees of freedom associated to the system.
Parallel Mechanisms with Two or Three Degrees of Freedom
Institute of Scientific and Technical Information of China (English)
刘辛军; 汪劲松; 李铁民; 段广洪
2003-01-01
Parallel manipulators for the machine tool industry have been studied extensively for various industrial applications. However, limited useful workspace areas, the poor mobility, and design difficulties of more complex parallel manipulators have led to more interest in parallel manipulators with less than six degrees of freedom (DoFs). Several parallel mechanisms with various numbers and types of degrees of freedom are described in this paper, which can be used in parallel kinematics machines, motion simulators, and industrial robots.
A Note on Primitive Permutation Groups of Prime Power Degree
Qian Cai; Hua Zhang
2015-01-01
Primitive permutation groups of prime power degree are known to be affine type, almost simple type, and product action type. At the present stage finding an explicit classification of primitive groups of affine type seems untractable, while the product action type can usually be reduced to almost simple type. In this paper, we present a short survey of the development of primitive groups of prime power degree, together with a brief description on such groups.
Are UK undergraduate Forensic Science degrees fit for purpose?
Welsh, Charles; Hannis, Marc
2011-09-01
In October 2009 Skills for Justice published the social research paper 'Fit for purpose?: Research into the provision of Forensic Science degree programmes in UK Higher Education Institutions.' The research engaged employers representing 95% of UK Forensic Science providers and 79% of UK universities offering Forensic Science or Crime Scene degree programmes. In addition to this, the research collected the views of 430 students studying these degrees. In 2008 there were approximately 9000 people working in the Forensic Science sector in the UK. The research found that the numbers of students studying Forensic Science or Crime Scene degrees in the UK have more than doubled since 2002-03, from 2191 in to 5664 in 2007-08. Over the same period there were twice as many females as males studying for these degrees. The research concluded that Forensic Science degree programmes offered by UK universities were of a good quality and they provided the student with a positive learning experience but the content was not relevant for Forensic Science employers. This echoed similar research by the former Government Department for Innovation, Universities and Skills on graduates from wider science, technology, engineering and mathematics degree programmes. The research also found that 75% of students studying Forensic Science or Crime Scene degrees expected to have a career in the Forensic Science sector, meaning that ensuring these courses are relevant for employers is a key challenge for universities. This paper reflects on the original research and discusses the implications in light of recent government policy. Copyright © 2011 Forensic Science Society. Published by Elsevier Ireland Ltd. All rights reserved.
CPUG: Computational Physics UG Degree Program at Oregon State University
Landau, Rubin H.
2004-03-01
A four-year undergraduate degree program leading to a Bachelor's degree in Computational Physics is described. The courses and texts under development are research- and Web-rich, and culminate in an advanced computational laboratory derived from graduate theses and faculty research. The five computational courses and course materials developed for this program act as a bridge connecting the physics with the computation and the mathematics, and as a link to the computational science community.
Subjective experiences in first-degree relatives of schizophrenic subjects.
Loas, Gwenolé; Dimassi, Hajer; Yon, Valérie; Monestes, Jean Louis
2012-10-01
First-degree relatives of patients with schizophrenia may score higher on the Frankfurt Complaint Questionnaire (FCQ) than controls. The present study was designed to provide evidence of validity for the French version of the 24-item subscale of the Frankfurt Complaint Questionnaire (FCQ-24). In 27 first-degree relatives of patients with schizophrenia (high-risk group) and 30 controls, the high-risk group scored significantly higher on the FCQ, as expected.
Degree of Entanglement for Some Bipartite Entangled Bosonic Systems
Institute of Scientific and Technical Information of China (English)
LIANG Xian-Ting
2004-01-01
We calculate the degree of entanglement for some bipartite entangled states of continuous variables.These states include common two-mode squeezed vacuum state, thermal vacuum state of a free single particle (where the fictitious tilde system is regarded as another particle), and the squeezed vacuum state of two coupling harmonic oscillators.The degree of entanglement for these quantum systems are shown clearly by using the technique of integration within an ordered product of operators.
The best uniform approximation of ellipse with degree two
Rababah, Abedallah; AlMeraj, Zainab
2017-07-01
A uniform quadratic approximation of degree 2 is created in explicit parametric form to represent elliptical arcs. The error function is identical to that of the Chebyshev polynomial of degree 4 and equioscillates five times with an approximation order of four. In this paper we provide the approximation method, show it is efficient, its error bound to be accurate and demonstrate that it satisfies properties of the best uniform approximation.
Brief 75 Health Physics Enrollments and Degrees Survey, 2014 Data
Energy Technology Data Exchange (ETDEWEB)
None, None
2015-03-05
The 2014 survey includes degrees granted between September 1, 2013 and August 31, 2014. Enrollment information refers to the fall term 2014. Twenty-two academic programs were included in the survey universe, with all 22 programs providing data. Since 2009, data for two health physics programs located in engineering departments are also included in the nuclear engineering survey. The enrollments and degrees data includes students majoring in health physics or in an option program equivalent to a major.
Brief 73 Health Physics Enrollments and Degrees Survey, 2013 Data
Energy Technology Data Exchange (ETDEWEB)
None, None
2014-02-15
The survey includes degrees granted between September 1, 2012 and August 31, 2013. Enrollment information refers to the fall term 2013. Twenty-two academic programs were included in the survey universe, with all 22 programs providing data. Since 2009, data for two health physics programs located in engineering departments are also included in the nuclear engineering survey. The enrollments and degrees data includes students majoring in health physics or in an option program equivalent to a major.taoi_na
Degree distribution of a new model for evolving networks
Indian Academy of Sciences (India)
Xuan Zhang; Qinggui Zhao
2010-03-01
We propose and study an evolving network model with both preferential and random attachments of new links, incorporating the addition of new nodes, new links, and the removal of links. We first show that the degree evolution of a node follows a nonhomogeneous Markov chain. Based on the concept of Markov chain, we provide the exact solution of the degree distribution of this model and show that the model can generate scale-free evolving network.
Tunable degree of localization in random lasers with controlled interaction
Leonetti, Marco; Lopez, Cefe
2012-01-01
We show that the degree of localization for the modes of a random laser (RL) is affected by the inter mode interaction that is controlled by shaping the spot of the pump laser. By experimentally investigating the spatial properties of the lasing emission we infer that strongly localized modes are activated in the low interacting regime while in the strongly interacting one extended modes are found lasing. Thus we demonstrate that the degree o localization may be finely tuned at the micrometer level.
Algorithms for degree-constrained Euclidean Steiner minimal tree
Institute of Scientific and Technical Information of China (English)
Zhang Jin; Ma Liang; Zhang Liantang
2008-01-01
A new problem of degree-constrained Euclidean Steiner minimal tree is discussed,which is quite useful in several fields.Although it is slightly different from the traditional degree-constrained minimal spanning tree,it is aho NP-hard.Two intelligent algorithms are proposed in an attempt to solve this difficult problem.Series of numerical examples are tested,which demonstrate that the algorithms also work well in practice.
A degree condition for maximal cycles in bipartite digraphs
Adamus, Janusz
2011-01-01
We prove a sharp Ore-type criterion for hamiltonicity of balanced bipartite digraphs: A bipartite digraph D, with colour classes of cardinality N, is hamiltonian if, for every pair of vertices u and v from opposite colour classes of D such that the arc u->v is not in D, the sum of the positive half-degree of u and the negative half-degree of v is greater than or equal to N+2.
Directory of Open Access Journals (Sweden)
Joshi RS
2017-06-01
Full Text Available Rajesh Subhash Joshi, Sonal Jayant Muley Department of Ophthalmology, Vasantrao Naik Government Medical College, Yavatmal, Maharashtra, India Purpose: To evaluate the effective phaco time (EPT, cumulative dissipated energy (CDE and nucleus emulsification time (NET as phaco parameters with 0- and 30-degree phaco tip. Patients and methods: This prospective, interventional and observational case series included 294 patients scheduled for cataract removal by phacoemulsification technique. Patients with nuclear cataracts of grade 4 and 5 nuclear opalescence of Lens Opacities Classification System III were included in the study. Patients were consecutively allocated to phaco chop technique with 0-degree (0-degree group, n=147 and combined bevel up and down position using 30-degree phaco tip (combined bevel up/down group, n=147. The 0-degree group had phacoemulsification with 0-degree phaco tip, while the 30-degree group had chopping of the nucleus with bevel down phaco tip and emulsification of nuclear fragments was accomplished with bevel up tip. EPT, CDE, NET and intraoperative complications were noted and compared between the groups using analysis of variance. Results: Average EPT, CDE and NET were lower in the 30-degree group than in the 0-degree group. However, no statistically significant difference was found in EPT (P=0.0733, CDE (P=0.0663 and NET (P=0.0633 between the two groups. No serious intraoperative complications were noted. The anterior chamber was maintained throughout the procedure in both groups. No patients had wound burn and miosis during the procedure. None of the patients developed bullous keratopathy, uveitis and cystoid macular edema during the follow-up period. Conclusion: Combined bevel up and down 30-degree tip can yield effective hard nucleus phacoemulsification. Bevel down tip of 30-degree helps in effective chopping and bevel up tip assists in emulsification of the nuclear fragments. Although combined bevel up and down 30
Degree correlations in directed scale-free networks
Williams, Oliver
2014-01-01
Scale-free networks, in which the distribution of the degrees obeys a power-law, are ubiquitous in the study of complex systems. One basic network property that relates to the structure of the links found is the degree assortativity, which is a measure of the correlation between the degrees of the nodes at the end of the links. Degree correlations are known to affect both the structure of a network and the dynamics of the processes supported thereon, including the resilience to damage, the spread of information and epidemics, and the efficiency of defence mechanisms. Nonetheless, while many studies focus on undirected scale-free networks, the interactions in real-world systems often have a directionality. Here, we investigate the dependence of the degree correlations on the power-law exponents in directed scale-free networks. To perform our study, we consider the problem of building directed networks with a prescribed degree distribution, providing a method for proper generation of power-law-distributed direc...
The 200 Degree-Long Magellanic Stream System
Nidever, David L; Burton, W Butler; Nigra, Lou
2010-01-01
We establish that the Magellanic Stream (MS) is some 40 degrees longer than previously known with certainty and that the entire MS and Leading Arm (LA) system is thus at least 200 degrees long. With the GBT, we conducted a ~200 square degree, 21-cm survey at the MS-tip to substantiate the continuity of the MS between the Hulsbosch & Wakker data and the MS-like emission reported by Braun & Thilker. Our survey, in combination with the Arecibo survey by Stanimirovic et al., shows that the MS gas is continuous in this region and that the MS is at least ~140 degrees long. We identify a new filament on the eastern side of the MS that significantly deviates from the equator of the MS coordinate system for more than ~45 degrees. Additionally, we find a previously unknown velocity inflection in the MS-tip near MS longitude L_MS=-120 degrees at which the velocity reaches a minimum and then starts to increase. We find that five compact high velocity clouds cataloged by de Heij et al. as well as Wright's Cloud ar...
National Research Council Canada - National Science Library
Joshi RS; Muley SJ
2017-01-01
...) as phaco parameters with 0- and 30-degree phaco tip. Patients and methods: This prospective, interventional and observational case series included 294 patients scheduled for cataract removal by phacoemulsification technique...
Directory of Open Access Journals (Sweden)
José Gamboa García
2009-05-01
Full Text Available As part of a study on the expectations of benefit of higher education applicants, this article approaches the choice of a degree program according to the academic interest from the perspective of the rational analysis. Applicants who took the admissions test in two institutions were surveyed in order to carry out later statistical analysis with the purpose of finding a multivariate model. The obtained results showed that gender, work, and age were related to the applicants’ interest on certain academic degree program. The interest for a degree program tends to be unimportant in employed women’s choices, aged 20 years or older. Among applicants whose father considered higher education very important, the probability to consider one’s interest on the choice of a bachelor’s degree was higher for male applicants. The above information confirms the variation in rational calculations regarding social characteristics.
Plouff, Donald
1992-01-01
These gravity maps are part of a folio of maps of the Tonopah 1 degree by 2 degrees quadrangle, Nevada, prepared under the Conterminous United States Mineral Assessment Program. Each product of the folio is designated by a different letter symbol, starting with A, in the MF-1877 folio. The quadrangle encompasses an area of about 19,500 km2 in the west central part of Nevada.
Franco, M A L; Braga, A C; Nunan, G W A; Costa, P A S
2009-09-01
A collection of fishes from the Brazilian continental slope between 11 degrees and 23 degrees S obtained through trawling revealed nine species of Ipnopidae. Bathypterois bigelowi and Bathytyphlops marionae represent first records from the south-western Atlantic Ocean and Bathypterois grallator is reported off Brazil for the first time. Four species have their distribution extended in Brazilian waters: Bathypterois phenax, Bathypterois quadrifilis, Bathypterois viridensis and Ipnops murrayi. An identification key of Ipnopidae species from the south-western Atlantic Ocean is included.
What's a Degree Got to Do with It? The Civic Engagement of Associate's and Bachelor's Degree Holders
Newell, Mallory Angeli
2014-01-01
This study explored the civic engagement of adults holding an associate's degree compared to those holding a bachelor's degree. Most prior research has focused on individuals who hold 4-year degrees; the present study, however, sought to understand differences between holders of 2-year degrees and 4-year degrees. Descriptive statistics…
Controllability of deterministic networks with the identical degree sequence.
Directory of Open Access Journals (Sweden)
Xiujuan Ma
Full Text Available Controlling complex network is an essential problem in network science and engineering. Recent advances indicate that the controllability of complex network is dependent on the network's topology. Liu and Barabási, et.al speculated that the degree distribution was one of the most important factors affecting controllability for arbitrary complex directed network with random link weights. In this paper, we analysed the effect of degree distribution to the controllability for the deterministic networks with unweighted and undirected. We introduce a class of deterministic networks with identical degree sequence, called (x,y-flower. We analysed controllability of the two deterministic networks ((1, 3-flower and (2, 2-flower by exact controllability theory in detail and give accurate results of the minimum number of driver nodes for the two networks. In simulation, we compare the controllability of (x,y-flower networks. Our results show that the family of (x,y-flower networks have the same degree sequence, but their controllability is totally different. So the degree distribution itself is not sufficient to characterize the controllability of deterministic networks with unweighted and undirected.
Controllability of deterministic networks with the identical degree sequence.
Ma, Xiujuan; Zhao, Haixing; Wang, Binghong
2015-01-01
Controlling complex network is an essential problem in network science and engineering. Recent advances indicate that the controllability of complex network is dependent on the network's topology. Liu and Barabási, et.al speculated that the degree distribution was one of the most important factors affecting controllability for arbitrary complex directed network with random link weights. In this paper, we analysed the effect of degree distribution to the controllability for the deterministic networks with unweighted and undirected. We introduce a class of deterministic networks with identical degree sequence, called (x,y)-flower. We analysed controllability of the two deterministic networks ((1, 3)-flower and (2, 2)-flower) by exact controllability theory in detail and give accurate results of the minimum number of driver nodes for the two networks. In simulation, we compare the controllability of (x,y)-flower networks. Our results show that the family of (x,y)-flower networks have the same degree sequence, but their controllability is totally different. So the degree distribution itself is not sufficient to characterize the controllability of deterministic networks with unweighted and undirected.
Determination of the distributions of degrees of acetylation of chitosan.
Thevarajah, Joel Jerushan; Van Leeuwen, Matthew Paul; Cottet, Herve; Castignolles, Patrice; Gaborieau, Marianne
2017-02-01
Chitosan is often characterized by its average degree of acetylation. To increase chitosan's use in various industries, a more thorough characterization is necessary as the acetylation of chitosan affects properties such as dissolution and mechanical properties of chitosan films. Despite the poor solubility of chitosan, free solution capillary electrophoresis (CE) allows a robust separation of chitosan by the degree of acetylation. The distribution of degrees of acetylation of various chitosan samples was characterized through their distributions of electrophoretic mobilities. These distributions can be obtained easily and with high precision. The heterogeneity of the chitosan chains in terms of acetylation was characterized through the dispersity of the electrophoretic mobility distributions obtained. The relationship between the number-average degree of acetylation obtained by solid-state NMR spectroscopy and the weight-average electrophoretic mobilities was established. The distribution of degrees of acetylation was determined using capillary electrophoresis in the critical conditions (CE-CC). Copyright © 2016 Elsevier B.V. All rights reserved.
Impact of Degree Heterogeneity on Attack Vulnerability of Interdependent Networks
Sun, Shiwen; Wu, Yafang; Ma, Yilin; Wang, Li; Gao, Zhongke; Xia, Chengyi
2016-09-01
The study of interdependent networks has become a new research focus in recent years. We focus on one fundamental property of interdependent networks: vulnerability. Previous studies mainly focused on the impact of topological properties upon interdependent networks under random attacks, the effect of degree heterogeneity on structural vulnerability of interdependent networks under intentional attacks, however, is still unexplored. In order to deeply understand the role of degree distribution and in particular degree heterogeneity, we construct an interdependent system model which consists of two networks whose extent of degree heterogeneity can be controlled simultaneously by a tuning parameter. Meanwhile, a new quantity, which can better measure the performance of interdependent networks after attack, is proposed. Numerical simulation results demonstrate that degree heterogeneity can significantly increase the vulnerability of both single and interdependent networks. Moreover, it is found that interdependent links between two networks make the entire system much more fragile to attacks. Enhancing coupling strength between networks can greatly increase the fragility of both networks against targeted attacks, which is most evident under the case of max-max assortative coupling. Current results can help to deepen the understanding of structural complexity of complex real-world systems.
Precision Magnetic Bearing Six Degree of Freedom Stage
Williams, M. E.; Trumper, David L.
1996-01-01
Magnetic bearings are capable of applying force and torque to a suspended object without rigidly constraining any degrees of freedom. Additionally, the resolution of magnetic bearings is limited only by sensors and control, and not by the finish of a bearing surface. For these reasons, magnetic bearings appear to be ideal for precision wafer positioning in lithography systems. To demonstrate this capability a linear magnetic bearing has been constructed which uses variable reluctance actuators to control the motion of a 14.5 kg suspended platen in five degrees of freedom. A Lorentz type linear motor of our own design and construction is used to provide motion and position control in the sixth degree of freedom. The stage performance results verify that the positioning requirements of photolithography can be met with a system of this type. This paper describes the design, control, and performance of the linear magnetic bearing.
Does a bachelor’s degree pay off?
DEFF Research Database (Denmark)
Neugebauer, Martin; Weiss, Felix
Academic education is generally rewarded by employers, but what happens to graduates if they are trained for two years less and have to compete with vocationally trained labor market entrants in a similar field of study? Focusing on Germany, we analyze labor market entries of individuals eligible...... training degrees, and with higher prestige (but similar earnings) than further vocational degrees. However, bachelor’s degrees from universities are also related to higher risks of unemployment or fixed-term employment. Universities of applied sciences, which combine academic and practical training, offer...... both high earnings and prestigious jobs as well as low risks of unemployment or fixed-term employment at the bachelor’s and the master’s level. Overall, ‘general’ academic education provides advantages over vocational education, despite these structural changes. Variations by field of study...
Ranking grey numbers based on dominance grey degrees
Institute of Scientific and Technical Information of China (English)
Yong Liu; Jeffrey Forrest; Naiming Xie
2014-01-01
With respect to the decision making problems where a lot of fuzzy and grey information always exists in the real-life deci-sion making information system, it is difficult for such uncertainty methods as fuzzy mathematics, probability, and interval numbers to deal with. To this end, based on the thought and method of grey numbers, grey degrees and interval numbers, the concept of dominance grey degree is defined. And then a method of rank-ing interval grey numbers based on the dominance grey degree is proposed. After discussing the relevant properties, the paper final y uses an example to demonstrate the effectiveness and ap-plicability of the model. The result shows that the proposed model can more accurately describe uncertainty decision making prob-lems, and realize the total ordering process for multiple-attribute decision-making problems.
Degrees of Freedom of Multi-Source Relay Networks
Jeon, Sang-Woon; Jafar, Syed A
2009-01-01
We study a multi-source Gaussian relay network consisting of $K$ source--destination pairs having $K$ unicast sessions. We assume $M$ layers of relays between the sources and the destinations. We find achievable degrees of freedom of the network. Our schemes are based on interference alignment at the transmitters and symbol extension and opportunistic interference cancellation at the relays. For $K$-$L$-$K$ networks, i.e., 2-hop network with $L$ relays, we show $\\min\\{K,K/2+L/(2(K-1))\\}$ degrees of freedom are achievable. For $K$-hop networks with $K$ relays in each layer, we show the full $K$ degrees of freedom are achievable provided that $K$ is even and the channel distribution satisfies a certain symmetry.
World Migration Degree Global migration flows in directed networks
Porat, Idan
2015-01-01
In this article we analyze the global flow of migrants from 206 source countries to 145 destination countries (2006-2010) and focus on the differences in the migration network pattern between destination and source counters as represented by its degree and weight distribution. Degree represents the connectivity of a country to the global migration network, and plays an important role in defining migration processes and characteristics. Global analysis of migration degree distribution offers a strong potential contribution to understanding of migration as a global phenomenon. In regard to immigration, we found that it is possible to classify destination countries into three classes: global migration hubs with high connectivity and high migration rate; local migration hubs with low connectivity and high migration rate; and local migration hubs with opposite strategy of high connectivity and low migration rate. The different migration strategies of destination countries are emerging from similar and homogenies p...
How to create a degree course in radiography: a recipe
Energy Technology Data Exchange (ETDEWEB)
Pratt, S. E-mail: Pratt@cf.ac.uk; Adams, C. E-mail: AdamsC1@cf.ac.uk
2003-11-01
This article explains how an undergraduate programme is devised and validated. Since 1993, all courses in radiography have been of graduate level with radiography education being based in higher educational institutions. Before a new degree is implemented a review of the existing programme is undertaken. The proposed degree philosophy and learning outcomes need to be determined before the content; its mode of delivery and assessment are developed. Input from stakeholders (such as clinical colleagues) is necessary as well as adherence to policies and strategies for radiography education. Throughout the development process compliance with policy, both national and local, is critical. All radiography programmes have to be validated/accredited by representatives from national organisations--such as The Society and College of Radiographers (SCoR). These representatives scrutinise the proposed degree course documentation; often they may also inspect the clinical and university facilities in which the education and training will take place.
Fuzzy MCDM Based on Fuzzy Relational Degree Analysis
Institute of Scientific and Technical Information of China (English)
无
2002-01-01
This paper presents a new fuzzy multiple criteria (both qualitative and quantitative) decision-making (MCDM) method based on fuzzy relational degree analysis. The concepts of fuzzy set theory are used to construct a weighted suitability decision matrix to evaluate the weighted suitability of different alternatives versus various criteria. The positive ideal solution and negative ideal solution are then obtained by using a method of ranking fuzzy numbers, and the fuzzy relational degrees of different alternatives versus positive ideal solution and negative ideal solution are calculated by using the proposed arithmetic. Finally, the relative relational degrees of various alternatives versus positive ideal solution are ranked to determine the best alternative. A numerical example is provided to illustrate the proposed method at the end of this paper.
Spatial Degrees of Freedom in Everett Quantum Mechanics
Rubin, M A
2005-01-01
Stapp claims that, when spatial degrees of freedom are taken into account, Everett quantum mechanics is ambiguous due to a "core basis problem." To examine this claim I generalize the ideal measurement model to include translational degrees of freedom for both the measured system and the measuring apparatus. Analysis of this generalized model using the Everett interpretation in the Heisenberg picture shows that it makes unambiguous predictions for the possible results of measurements and their respective probabilities. The presence of translational degrees of freedom for the measuring apparatus affects the probabilities of measurement outcomes in the same way that a mixed state for the measured system would. Examination of measurement scenarios involving several observers illustrates the consistency of the model with perceived spatial localization of the measuring apparatus, with intersubjective agreement as to the results of measurement, and with the idea of measurement as "state preparation."
Introducing Modified Degree 4 Chordal Rings with Two Chord Lengths
DEFF Research Database (Denmark)
Pedersen, Jens Myrup
2007-01-01
In this paper an analysis of modified degree 4 Chordal Rings with two chord lengths named CHRm is presented and compared to similar topologies: Chordal Rings, N2R and modified N2R. Formulas for approximating diameters and average path lengths are provided and verified, and it is shown...... that the distances in CHRm are significantly smaller than in traditional Chordal Rings and N2R, and also smaller than modified N2R for topologies with up to 1500 nodes. Despite the proposed CHRm being of degree 4, and the modified N2R of degree 3, CHRm may be better suited for the optical level of fiber rings, due...... to its easy mapping onto the ring. It seems to be superior also to the traditional Chordal Rings, but it is not node symmetric....
Assessing Danger Degree of Soil Erosion in Rikaze Prefecture, Tibet
Institute of Scientific and Technical Information of China (English)
CHEN Xuehua; ZHOU Jianzhong; ZHOU Hongyi
2007-01-01
Ten indicators were selected in the present paper concerns current status of soil erosion and its driving forces. Synthesized evaluation model on danger degree of soil erosion (DDSE) was built and estimation on DDSE in Rikaze was carried out by analytical hierarchy process (AHP). This evaluation model selected indicators scientifically and reasonably, which are easy to be caught, and played well in application. Results showed that a light erosion danger degree exists in Nanmulin, Xietongmen and Angren; Dingri, Sajia, Saga, Zhongba; Nielamu, Gangba, Kangma and Rikaze County share a moderate danger degree, while other counties own severe erosion, especially Dingjie and Lazi County. Ecological environment in Rikaze is frangible. Therefore, eco-restoration and corresponding countermeasures are urgently needed in this region to guarantee a regional eco-environment healthy.
Perturbative Degrees of Freedom in Loop Quantum Gravity: Anisotropies
Bojowald, M; Morales-Tecotl, H A; Bojowald, Martin; Hernandez, Hector H.; Morales-Tecotl, Hugo A
2006-01-01
The relation between an isotropic and an anisotropic model in loop quantum cosmology is discussed in detail, comparing the strict symmetry reduction with a perturbative implementation of symmetry. While the latter cannot be done in a canonical manner, it allows to consider the dynamics including the role of small non-symmetric degrees of freedom for the symmetric evolution. This serves as a model for the general situation of perturbative degrees of freedom in a background independent quantization such as loop quantum gravity, and for the more complicated addition of perturbative inhomogeneities. While being crucial for cosmological phenomenology, it is shown that perturbative non-symmetric degrees of freedom do not allow definitive conclusions for the singularity issue and in such a situation could even lead to wrong claims.
Development of a medical academic degree system in China
Directory of Open Access Journals (Sweden)
Lijuan Wu
2014-01-01
Full Text Available Context: The Chinese government launched a comprehensive healthcare reform to tackle challenges to health equities. Medical education will become the key for successful healthcare reform. Purpose: We describe the current status of the Chinese medical degree system and its evolution over the last 80 years. Content: Progress has been uneven, historically punctuated most dramatically by the Cultural Revolution. There is a great regional disparity. Doctors with limited tertiary education may be licensed to practice, whereas medical graduates with advanced doctorates may have limited clinical skills. There are undefined relationships between competing tertiary training streams, the academic professional degree, and the clinical residency training programme (RTP. The perceived quality of training in both streams varies widely across China. As the degrees of master or doctor of academic medicine is seen as instrumental in career advancement, including employability in urban hospitals, attainment of this degree is sought after, yet is often unrelated to a role in health care, or is seen as superior to clinical experience. Meanwhile, the practical experience gained in some prestigious academic institutions is deprecated by the RTP and must be repeated before accreditation for clinical practice. This complexity is confusing both for students seeking the most appropriate training, and also for clinics, hospitals and universities seeking to recruit the most appropriate applicants. Conclusion: The future education reforms might include: 1 a domestic system of ‘credits’ that gives weight to quality clinical experience vs. academic publications in career advancement, enhanced harmonisation between the competing streams of the professional degree and the RTP, and promotion of mobility of staff between areas of excellence and areas of need; 2 International – a mutual professional and academic recognition between China and other countries by reference to
A New Family of Interconnection Networks of Fixed Degree Three
Institute of Scientific and Technical Information of China (English)
Shu-Ming Zhou; Wen-Jun Xiao
2004-01-01
A new family of interconnection networks WGn is proposed, that is constant degree 3 Cayley graph,and is isomorphic to a Cayley graph of the wreath product Z2lSn when the generator set is chosen properly. Its different algebraic properties is investigated and a routing algorithm is given with the diameter upper bounded by 3n2 - 6n + 4. The embedding properties and the fault tolerance are devired. In conclusion, we present a comparison of some familiar networks with constant degree 3.
Global energy demand and 2-degree target, report 2014
Crastan, Valentin
2014-01-01
This report takes a neutral and independent point of view in attempting to show concrete ways to achieve the goal of reducing the CO2 emissions and limiting the global warming to the 2-degree target. It presents an overall picture spanning all key countries. In the report, the temporal evolution of the main parameters is given from 1970 to 2011 for all regions of the world and all G-20 countries, starting from the basic data, gross inland consumption. The parameters are then extrapolated to 2030, taking into account current trends, local factors and the requirements of the 2-degree climate ta
Learning Read-constant Polynomials of Constant Degree modulo Composites
DEFF Research Database (Denmark)
Chattopadhyay, Arkadev; Gavaldá, Richard; Hansen, Kristoffer Arnsfelt;
2011-01-01
Boolean functions that have constant degree polynomial representation over a fixed finite ring form a natural and strict subclass of the complexity class \\textACC0ACC0. They are also precisely the functions computable efficiently by programs over fixed and finite nilpotent groups. This class...... is not known to be learnable in any reasonable learning model. In this paper, we provide a deterministic polynomial time algorithm for learning Boolean functions represented by polynomials of constant degree over arbitrary finite rings from membership queries, with the additional constraint that each variable...
Gender differences within 360‐degree managerial performance appraisals
Millmore, Mike; Biggs, David M; Morse, Laura
2007-01-01
Purpose\\ud – The purpose of this paper is to examine the impact of gender on the performance assessments of managers arising from the 360‐degree scheme operated within the UK headquarters of a large multi‐international financial services organisation.\\ud \\ud Design/methodology/approach\\ud – A questionnaire approach was used to collect data on 66 managers (33 males and 33 females) against four broad capabilities on the 360‐degree appraisal system. Data were gathered on each of the 66 managers ...
k-Diameter of Circulant Graph with Degree 3
Institute of Scientific and Technical Information of China (English)
ZHANG Xian-di; LI Man-li
2005-01-01
Parameters k-distance and k-diameter are extension of the distance and the diameter in graph theory. In this paper, the k-distance dk (x,y) between the any vertices x andy is first obtained in a connected circulant graph G with order n (n is even) and degree 3 by removing some vertices from the neighbour set of the x. Then, the k-diameters of the connected circulant graphs with order n and degree 3 are given by using the k-diameter dk (x, y).
A multicast dynamic wavelength assignment algorithm based on matching degree
Institute of Scientific and Technical Information of China (English)
WU Qi-wu; ZHOU Xian-wei; WANG Jian-ping; YIN Zhi-hong; ZHANG Long
2009-01-01
The wavelength assignment with multiple multicast requests in fixed routing WDM network is studied. A new multicast dynamic wavelength assignment algorithm is presented based on matching degree. First, the wavelength matching degree between available wavelengths and multicast routing trees is introduced into the algorithm. Then, the wavelength assign-ment is translated into the maximum weight matching in bipartite graph, and this matching problem is solved by using an extended Kuhn-Munkres algorithm. The simulation results prove that the overall optimal wavelength assignment scheme is obtained in polynomial time. At the same time, the proposed algorithm can reduce the connecting blocking probability and improve the system resource utilization.
Super Five Brane Hamiltonian and the Chiral Degrees of Freedom
De Castro, A
2002-01-01
We construct the Hamiltonian of the super five brane in terms of its physical degrees of freedom. It does not depend on the inverse of the induced metric. Consequently, some singular configurations are physically admissible, implying an interpretation of the theory as a multiparticle one. The symmetries of the theory are analyzed from the canonical point of view in terms of the first and second class constraints. In particular it is shown how the chiral sector may be canonically reduced to its physical degrees of freedom.
Manipulating spatiotemporal degrees of freedom of waves in random media.
Lemoult, Fabrice; Lerosey, Geoffroy; de Rosny, Julien; Fink, Mathias
2009-10-23
We show that all the spatiotemporal degrees of freedom available in a complex medium can be harnessed and converted into spatial ones. This is demonstrated experimentally through an instantaneous spatial inversion, using broadband ultrasonic waves in a multiple scattering sample. We show theoretically that the inversion convergence is governed by the total number of degrees of freedom available in the medium for a fixed bandwidth and demonstrate experimentally its use for complex media investigation. We believe our approach has potential in sensing, imagery, focusing, and telecommunication.
Physicians with MBA degrees: change agents for healthcare improvement.
Lazarus, Arthur
2010-01-01
Increasingly, physicians gravitating toward the fields of quality improvement and healthcare management are seeking MBA degrees to supplement their medical training. Approximately half of all U.S. medical schools offer combined MD-MBA degrees, and numerous executive MBA programs exist for physicians in practice. Physicians who enter management are considered change agents for healthcare improvement, yet they receive little support and encouragement from their medical teachers and practicing colleagues. This situation can be rectified by placing greater value on the role of business-trained physicians and subsidizing their tuition for business school.
Energy Technology Data Exchange (ETDEWEB)
Kassir, M.K.; Bandyopadhyay, K.K.; Reich, M.
1993-06-01
This report is concerned with determining the effect of elevated temperatures on the behavior of concrete. Emphasis is placed on quantifying the degree of potential degradation of the physical properties of concrete in high-level waste storage tanks. The range in the temperature elevation of interest covers from ambient to 315{degrees}C (600{degrees}F). The literature has been reviewed to examine the applicable experimental data and quantify the degradation in the concrete and reinforcing steel. Since many variables and test conditions control the results in the data base, upper and lower bounds of the degraded properties at temperatures applicable to the environments of the storage tanks are summarized and presented in explicit forms. Such results are useful in assessing the effect of elevated temperatures on the structural behavior of the tanks. Also, they provide the technical basis for a parametric study that may be necessary to investigate the thermal aspects of the structural integrity of the tanks.
Why Do English Universities "Really" Franchise Degrees to Overseas Providers?
Healey, Nigel
2013-01-01
Franchising degrees to overseas providers, normally for-profit private companies, has become big business for English universities. The latest data from the Higher Education Statistics Agency reveal that there are now more international students registered for the awards of English higher education institutions that are studying wholly offshore…
Selected Bibliography on Associate Degree Programs in Nursing.
National League for Nursing, New York, NY. Dept. of Associate Degree Programs.
This annotated bibliography consists of 99 entries, primarily journal articles, most of which were published after 1966. Organization is under the following headings: (1) Associate Degree Nursing (ADN) Programs--What They Are, (2) Planning for ADN Program, (3) Move to Educational Institutions, (4) Administration, (5) Faculty, (6) Teaching Methods,…
Journalism Degree Motivations: The Development of a Scale
Carpenter, Serena; Grant, August E.; Hoag, Anne
2016-01-01
Scientific knowledge should reflect valid, consistent measurement. It is argued research on scale development needs to be more systematic and prevalent. The intent of this article is to address scale development by creating and validating a construct that measures the underlying reasons why undergraduate students seek a degree in journalism, the…
Computer-Based Interaction Analysis with DEGREE Revisited
Barros, B.; Verdejo, M. F.
2016-01-01
We review our research with "DEGREE" and analyse how our work has impacted the collaborative learning community since 2000. Our research is framed within the context of computer-based interaction analysis and the development of computer-supported collaborative learning (CSCL) tools. We identify some aspects of our work which have been…
Chaos in systems with many degrees of freedom
Wijn, Astrid Silvia de
2004-01-01
In this thesis I discuss some of the chaotic properties specific to systems of many particles and other systems with many degrees of freedom. A dynamical system is called chaotic if a typical infinite perturbation of initial conditions grows exponentially with time. The chaoticity of a system is
New Rage on Campus: E-Commerce Degrees.
Dobbs, Kevin
1999-01-01
As electronic commerce expands, higher education attempts to keep up with the demand for instruction. Some universities have added a concentration in e-commerce to their master of business administration program and others are adding majors, certifications, or degrees. (JOW)
Going for the Gold Tassel: Getting a Doctoral Degree
Burton, Clark A.
2005-01-01
The purpose of this article was to explain the constructs of doctrine and doctorate to the fire service. The methodology applied the Carnegie Foundation review of the doctorate as the basics for explaining what stewards of the fire service discipline will do with a doctoral degree. Although the fire service is an interdisciplinary occupation, the…
The Doctoral Degree in Geography: A South African Perspective
Meadows, Michael E.
2012-01-01
Enrolments in doctoral degrees in South Africa mirror international trends and there is a strong national policy emphasis on these higher qualifications to fulfil needs, not only of the academy, but also of the economy and broader society. There are significant constraints, however, including the historical legacy of apartheid that has left the…
The Summative Assessment Diet: How We Assess in Mathematics Degrees
Iannone, Paola; Simpson, Adrian
2011-01-01
Much research and many papers on mathematics pedagogy have discussed assessment and, in particular, the need to provide a varied diet of methods by which students are assessed for the award of their degree. In this article, we explore the mix of assessment methods provided across a range of UK university mathematics departments. We examine the…
Training, Degrees, and Credentials in the Hiring of School Psychologists
O'donnell, Patrick S.; Dunlap, Linda L.
2014-01-01
A national sample of 246 Directors of Pupil Personnel Services and Directors of Special Education were surveyed to assess the importance they place on training, degrees, and credentials in the hiring of school psychologists. High, but varying, levels of importance were found for the content knowledge and skill areas in the National Association of…
Asymptotic Degree Distribution of a Kind of Asymmetric Evolving Network
Directory of Open Access Journals (Sweden)
Zhimin Li
2014-01-01
Full Text Available We propose a kind of evolving network which shows tree structure. The model is a combination of preferential attachment model and uniform model. We show that the proportional degree sequence pkk>1 obeys power law, exponential distribution, and other forms according to the relation of k and parameter m.
Collaboration in Foundation Degree Provision: A Case Study in Kent
Thurgate, Claire; MacGregor, Janet
2008-01-01
Health and Social Care Foundation Degree (FD HSC) development commenced at Canterbury Christ Church University (CCCU) in 2005: the university already had a variety of validated programmes of this design, thus this new provision was able to draw on expertise of proven worth in the local economy. Over the past two years this programme has expanded…
The Economics Degree in Australia: Down but Not out?
Round, David K.; Shanahan, Martin P.
2010-01-01
Before 1980, strong demand existed in Australia for the economics degree. Since then, competition from programs in business and management has increased. Student preferences have shifted from university and secondary economics. Economics enrollments have declined in both sectors. The authors analyze these trends and assess economic education…
Using "Kaizen" to Improve Graduate Business School Degree Programs
Emiliani, M. L.
2005-01-01
Purpose: To illustrate the applicability of "kaizen" in higher education. Design/methodology/approach: "Kaizen" process was used for ten courses contained in a part-time executive MS degree program in management. Findings: "Kaizen" was found to be an effective process for improving graduate business school courses and the value proposition for…
Otosclerosis among first and second degree Relatives of Otosclerotic patients
Directory of Open Access Journals (Sweden)
S Soheilipour
2006-05-01
Full Text Available Background: Otosclerosis (OS is the most common cause of conductive hearing loss in young population, and we determined incidence of OS among 1st and 2 nd degree relatives of surgically proved otosclerotic patients. Methods: In a cross sectional study among 43 surgically proved otosclerotic patients, positive family history of OS was determined. In suspicious cases, physical exam, tunning fork tests, and audiometry were performed. We also reviewed medical sheaths of admitted OS patients from 1995 to 2003 in Isfahan university hospitals for family history of OS. Results: Among 15 otosclerotic patients (34.88% with positive family history of OS, 14 individuals of their first and second degree relatives had clinical and audiometric otosclerosis. Among 85 medical record sheaths of otosclerotic patients, 12 patients (27.9 % had positive family history for OS. Conclusions: The incidence of clinical and audiometric otosclerosis among first and second degree relatives of OS patients is nearly similar to the rate of positive family history of our patients, which is relatively lower than other studies. Key words: Otosclerosis, family history, first and second degree relatives, hearing loss
Transforming the Master's Degree in Human Development and Family Science
Benson, Mark J.; Allen, Katherine R.; Few, April L.; Roberto, Karen A.; Blieszner, Rosemary; Meszaros, Peggy S.; Henderson, Tammy L.
2006-01-01
This study chronicles the transformation of a master's program from a traditional degree format to a more integrated, flexible, efficient, and relevant approach. The transformative strategies involve cohort learning, creative concentrations, portfolio documentation, and outreach presentation. Through integrating resources and goals, the new…
Educators' Degrees Earned on Internet Raise Fraud Issues
Trotter, Andrew
2004-01-01
This article discusses how the degrees earned by a dozen educators on the Internet have raised fraud issues. Small firms known as "credential evaluators" help states and school districts detect educators who present phony or flimsy academic credentials from overseas institutions--a safeguard that is becoming more important with the growth of…
THE DEGREE OF CRYSTALLINITY OF NYLON-1010 BY WAXD
Institute of Scientific and Technical Information of China (English)
MO Zhishen; HUANG Xueying; ZHANG Hongfang; YANG Baoquan; ZHU Chengshen; MU Zhongcheng
1994-01-01
Based on the X-ray scattering intensity theory and using the atomic scattering factor approximate expression,the correction factors for three main crystalline peaks and an amorphous peak of Nylon-1010 were calculated and the formula of degree of crystallinity of Nylon-1010 was derived by graphic multipeak resolution method.The results calculated are compatible with the density measurement and calorimetry.
Damage Degree Evaluation of Earthquake Area Using UAV Aerial Image
Directory of Open Access Journals (Sweden)
Jinhong Chen
2016-01-01
Full Text Available An Unmanned Aerial Vehicle (UAV system and its aerial image analysis method are developed to evaluate the damage degree of earthquake area. Both the single-rotor and the six-rotor UAVs are used to capture the visible light image of ground targets. Five types of typical ground targets are considered for the damage degree evaluation: the building, the road, the mountain, the riverway, and the vegetation. When implementing the image analysis, first the Image Quality Evaluation Metrics (IQEMs, that is, the image contrast, the image blur, and the image noise, are used to assess the imaging definition. Second, once the image quality is qualified, the Gray Level Cooccurrence Matrix (GLCM texture feature, the Tamura texture feature, and the Gabor wavelet texture feature are computed. Third, the Support Vector Machine (SVM classifier is employed to evaluate the damage degree. Finally, a new damage degree evaluation (DDE index is defined to assess the damage intensity of earthquake. Many experiment results have verified the correctness of proposed system and method.
Quantum Degrees of Freedom, Quantum Integrability and Entanglment Generators
Buric, Nikola
2010-01-01
Dynamical algebra notion of quantum degrees of freedom is utilized to study the relation between quantum dynamical integrability and generalized entanglement. It is argued that a quantum dynamical system generates generalized entanglement by internal dynamics if and only if it is quantum non-integrable. Several examples are used to illustrate the relation.
New Rage on Campus: E-Commerce Degrees.
Dobbs, Kevin
1999-01-01
As electronic commerce expands, higher education attempts to keep up with the demand for instruction. Some universities have added a concentration in e-commerce to their master of business administration program and others are adding majors, certifications, or degrees. (JOW)
Dynamic fuzzy hierarchy analysis for evaluation of professionalization degree
Jin, Lin; Min, Luo; Ma, Jingxi
2016-06-01
This paper presents the model of dynamic fuzzy hierarchy analysis for evaluation of professionalization degree, as a combination of the dynamic fuzzy theory and the AHP, which can show the changes and trends of the value of each index of professionalization.
ZeroDegree spectrometer at RIKEN RI Beam Factory
Kubo, Toshiyuki; Ohnishi, Tetsuya; Takeda, Hiroyuki; Fukuda, Naoki; Kameda, Daisuke; Kusaka, Kensuke; Yoshida, Atsushi; Yoshida, Koichi; Ohtake, Masao; Inabe, Naohito; Yanagisawa, Yoshiyuki; Tanaka, Kanenobu
2009-10-01
At RI Beam Factory (RIBF) [1] at RIKEN Nishina Center, a variety of fast rare isotope (RI) beams are produced using the BigRIPS in-flight separator [2] for studies of exotic nuclei. The beam line following BigRIPS is designed to work as a forward spectrometer named ZeroDegree, so that it can be used for reaction studies with RI beams. The ZeroDegree spectrometer consists of two dipoles and six superconducting quadrupole triplets, of which designs are essentially the same as those of BigRIPS. It analyzes and indentifies projectile reaction residues, often in coincidence with gamma rays, and can be operated in different optics modes, depending on experimental requirements. The ZeroDegree spectrometer has recently been commissioned and used for a series of full-dress RI-beam experiments. Overview and status of the ZeroDegree spectrometer will be reported.[4pt] [1] Y. Yano: Nucl. Instr. and Meth. B 261 (2007) 1009. [0pt] [2] T. Kubo: Nucl. Instr. and Meth. B 204 (2003) 97 and T. Ohnishi et al.: J. Phys. Soc. Japan, 77 (2008) 083201.
Rewiring dynamical networks with prescribed degree distribution for enhancing synchronizability.
Dadashi, Majid; Barjasteh, Iman; Jalili, Mahdi
2010-12-01
In this paper, we present an algorithm for enhancing synchronizability of dynamical networks with prescribed degree distribution. The algorithm takes an unweighted and undirected network as input and outputs a network with the same node-degree distribution and enhanced synchronization properties. The rewirings are based on the properties of the Laplacian of the connection graph, i.e., the eigenvectors corresponding to the second smallest and the largest eigenvalues of the Laplacian. A term proportional to the eigenvectors is adopted to choose potential edges for rewiring, provided that the node-degree distribution is preserved. The algorithm can be implemented on networks of any sizes as long as their eigenvalues and eigenvectors can be calculated with standard algorithms. The effectiveness of the proposed algorithm in enhancing the network synchronizability is revealed by numerical simulation on a number of sample networks including scale-free, Watts-Strogatz, and Erdős-Rényi graphs. Furthermore, a number of network's structural parameters such as node betweenness centrality, edge betweenness centrality, average path length, clustering coefficient, and degree assortativity are tracked as a function of optimization steps.
Integrated Marketing Communications: A New Master's Degree Concept.
Caywood, Clarke; Ewing, Raymond
1991-01-01
Describes how separate graduate degree programs have been fused into an integrated marketing communications program at Northwestern University. Discusses the five-quarter program that includes a core of new marketing communications planning and management classes, professional specialization classes in corporate public relations, advertising, and…
Analysis of Degree 5 Chordal Rings for Network Topologies
DEFF Research Database (Denmark)
Riaz, M. Tahir; Pedersen, Jens Myrup; Bujnowski, Sławomir
2011-01-01
This paper presents an analysis of degree 5 chordal rings, from a network topology point of view. The chordal rings are mainly evaluated with respect to average distance and diameter. We derive approximation expressions for the related ideal graphs, and show that these matches the real chordal ri...
Introducing Ethical, Social and Environmental Issues in ICT Engineering Degrees
Miñano, Rafael; Aller, Celia Fernández; Anguera, Áurea; Portillo, Eloy
2015-01-01
This paper describes the experience of introducing ethical, social and environmental issues in undergraduate ICT engineering degrees at the Universidad Politécnica de Madrid. The experience before the Bologna Process was concentrated on developing elective courses related mainly on the field of the International Development Cooperation. The…
Induction Heating of Hypervelocity Impact Samples to 2500 Degrees Centigrade
Simmons, Joshua; Pardo, Art; Henderson, Don; Rodriguez, Karen
2014-01-01
The Remote Hypervelocity Test Laboratory (RHTL) at White Sands Test Facility (WSTF) was asked to heat samples up to 2500 degrees Centigrade (4532 degrees Fahrenheit) to simulate reentry scenarios of crafts where heated shields are impacted with single small particles ranging from 0.2 to 1.0 millimeters (.008 to.039 inches) of various materials. The team decided an electromagnetic induction (induction heater) was the best method to achieve and control the temperatures in a rapid manner. The samples consisted of three-dimensional carbon-carbon and two-dimensional carbon-phenolic, which are both electrically conductive. After several attempts the team was able to achieve over 2500 degrees Centigrade (4532 degrees Fahrenheit) in ambient atmosphere. When the system was moved to the target chamber and the vacuum system evacuated down to 250 millitorr, arcing occurred between the bus bars and tank, the feedthrough fittings that carried the coolant and current, and between the target sample and coil. To overcome this arcing, conformal coatings, room temperature vulcanization (RTV) silicone, and other non-conductive materials were used to isolate the electromagnetic fields.
Time-to-Degree and the Business Cycle
Messer, Dolores; Wolter, Stefan C.
2010-01-01
This paper presents the results of an empirical investigation trying to explain individual time-to-degree variances with business cycle fluctuations. Assuming that students determine the optimum study length at university weighing up the cost of an additional semester against the consumption benefit of studying and not yet working, the general…
Predicting Bachelor's Degree Attainment for Developmental Math Students
Burley, Hansel; Butner, Bonita; Anderson, Connie Wilson; Siwatu, Kamau Oginga
2009-01-01
This study used the National Educational Longitudinal Study: 88 /2000 (NELS 88: /2000) dataset to explore characteristics associated with college degree attainment. The study was informed by Ajzen's Theory of Planned Behavior. The sample size was 6,832 postsecondary students. The findings revealed that developmental math students were less…
Outcomes of dental hygiene baccalaureate degree education in Canada.
Kanji, Zul; Sunell, Susanne; Boschma, Geertje; Imai, Pauline; Craig, Bonnie J
2011-03-01
There is little published literature about the outcomes of dental hygiene baccalaureate degree education, particularly in Canada. Since there are various dental hygiene entry-to-practice educational models in Canada, exploring baccalaureate dental hygiene education is becoming an increasingly important subject. The purpose of this study was to explore the personal outcomes and dental hygiene practice outcomes of dental hygiene degree-completion education in Canada from the perspectives of diploma dental hygienists who have continued their education to the bachelor's degree level. This study employed a qualitative phenomenological design, using a maximum variation purposeful sampling strategy. Data generation occurred with sixteen dental hygienists across Canada through individual semistructured interviews. Interviews were audiorecorded, transcribed verbatim, and coded for data analysis, involving pattern recognition and thematic development. Themes that emerged included changes in self-perception, values, and knowledge base. Changes in self-perception were reflected in a reported increase in self-confidence and perceived credibility. Changes in values included a greater appreciation for lifelong learning. Advancements in knowledge strengthened the development of specific abilities that ultimately influenced participants' dental hygiene practice. These abilities included an increased ability to think critically, to make evidence-based decisions, and to provide more comprehensive care. Participants also commented on having more career opportunities available to them outside of the private clinical practice setting. These results reveal important insights into the impact of earning a dental hygiene baccalaureate degree on oneself and one's dental hygiene practice.
Changes in Generic and Degree Completion Dental Hygiene Student Characteristics.
Carr, Sandra; Rubinstein, Linda
1989-01-01
A study compared the characteristics of dental hygiene students in two programs (bachelor's degree and two-year professional dental hygiene training) in 1978 and 1987 to assess changes over time. Results are presented and the implications for enrollment management are discussed. (MSE)
Chaos in systems with many degrees of freedom
Wijn, Astrid Silvia de
2004-01-01
In this thesis I discuss some of the chaotic properties specific to systems of many particles and other systems with many degrees of freedom. A dynamical system is called chaotic if a typical infinite perturbation of initial conditions grows exponentially with time. The chaoticity of a system is cha
Analysis of Degree 5 Chordal Rings for Network Topologies
DEFF Research Database (Denmark)
Riaz, M. Tahir; Pedersen, Jens Myrup; Bujnowski, Sławomir
2011-01-01
This paper presents an analysis of degree 5 chordal rings, from a network topology point of view. The chordal rings are mainly evaluated with respect to average distance and diameter. We derive approximation expressions for the related ideal graphs, and show that these matches the real chordal...
The Top 50 Communication, Journalism and Related Degrees Conferred
Diverse: Issues in Higher Education, 2012
2012-01-01
Each year, "Diverse: Issues In Higher Education" publishes lists of the Top 100 producers of associate, bachelor's, and graduate degrees awarded to minority students based on research conducted by Dr. Victor M. H. Borden, professor of educational leadership and policy studies at Indiana University Bloomington. This article presents a…
The Top 100 Communication, Journalism, and Related Degrees Conferred
Diverse: Issues in Higher Education, 2011
2011-01-01
Each year, "Diverse: Issues In Higher Education" publishes lists of the Top 100 producers of associate, bachelor's and graduate degrees awarded to minority students based on research conducted by Dr. Victor M. H. Borden, professor of educational leadership and policy studies at Indiana University Bloomington. This article presents a listing of the…
The Best University Degrees to Get a Job
Furnham, Adrian; Pertrides, K. V.
2010-01-01
Nearly 500 members of the public rated 20 university degree subjects in terms of their usefulness for employability. The top three were Law, Maths and English whereas the bottom three were Fine Art, Anthropology and Theology. A factor analysis was conducted to group the 20 subjects into broad academic fields. Five factors were identified,…
Why Students Return for a Master's Degree in Sport Management
Lewis, Benjamin A.; Quarterman, Jerome
2006-01-01
The purpose of this study was to determine the relative importance of choice factors that were most important to students who decided to matriculate in the field of sport management for a master's degree. A survey questionnaire was mailed to the program or department chairs of 12 randomly selected universities listed on the NASSM web site during…
The Influence of Teacher Graduate Degrees on Student Reading Achievement
Badgett, Kevin; Decman, John; Carman, Carol
2014-01-01
In a time of limited means and continued calls for higher student achievement, school leaders need to be wise in their use of resources. Earlier research has called for greater levels of teacher preparation, and, while many school districts provide greater compensation for teachers with graduate degrees, some districts have begun phasing out this…
Dependence of the degree of paraxiality on field correlations
El Gawhary, O.; Severini, S.
2008-01-01
A linearly polarized optical field can be obtained by filtering a stochastic field through an ideal linear polarizer. The produced field possesses a given degree of paraxiality that, as proved in the present Letter, can be affected by the correlations of the original stochastic field. An example wit
What Is AV Doing in a Humanities Degree?
Thorn, Richard L.
1981-01-01
Describes the Communication module of the B.A. (Honors) Humanities modular degree at Bristol Polytechnic which involves non-Art and Design students in practical audiovisual media work as they undertake "live" projects for clients in the community, e.g., teachers, social workers, or charities. Five references are appended. (Author/LLS)
Using "Kaizen" to Improve Graduate Business School Degree Programs
Emiliani, M. L.
2005-01-01
Purpose: To illustrate the applicability of "kaizen" in higher education. Design/methodology/approach: "Kaizen" process was used for ten courses contained in a part-time executive MS degree program in management. Findings: "Kaizen" was found to be an effective process for improving graduate business school courses and the value proposition for…
The degrees of freedom of penalized l1 minimization
Dossal, Charles; Fadili, Jalal M; Peyré, Gabriel; Chesneau, Christophe
2011-01-01
In this paper, we study the degrees of freedom (df) of penalized l1 minimization (also known as the Lasso) for linear regression models. We give a closed-form expression of the degrees of freedom of the Lasso response. Namely, we show that for any given Lasso regularization parameter \\lambda and any observed data y belongs to a set of full measure, the cardinal of the support of a particular solution of the Lasso problem is an unbiased estimator of the degrees of freedom of the Lasso response. This is achieved without any assumption on the uniqueness of the Lasso solution. Thus, our result remains true for both the underdetermined and the overdetermined case studied originally in Zou et al.. We also prove that a key result in Zou et al. is not true by providing a simple counterexample. An effective estimator of the number of degrees of freedom may have several applications including an objectively guided choice of the regularization parameter in the Lasso through the SURE framework.
The Win-Win of Adult Degree Programs
Ellis, J. Richard
2012-01-01
Adult degree programs have been seen as a win-win solution for private colleges and adult learners, but their innovative and often-entrepreneurial postures are not a natural fit with governance structures in more traditional institutions. Through narrative and illustrative vignettes, this chapter presents an overview of efforts employed by some…
INSTRUMENTAL TRAINING OF THE BACHELOR DEGREE STUDENTS IN MUSIC
Directory of Open Access Journals (Sweden)
Dario Zerrate Rubio.
2010-02-01
Full Text Available This article is presented by the research team “Instrumental Didactic”, from the Faculty of Arts of the Universidad Pedagógica Nacional de Colombia, and brings out an analysis on the current instrumental training of its students in the bachelor degree in music. In the course of this research project, the team has specified some terms and topics such as “meaningful learning”, “didactic”, and “teaching-learning processes”. Then, using data-collection instruments such as audio and video recording and interviews, the pedagogical practices of the team’s teachers were analyzed. The key question for the research was: What sort of instrumental training might better enhance meaningful learning about pedagogy and musical didactics for the bachelor degree students in music at the UPN?The process of investigation allowed the group of teachers to strengthen the interaction inside of it as a research team, confirming, at the same time, the importance of instrumental didactics in the training of the bachelor degree students in music. Furthermore, the teachers as a team recognized the need of careful thought all along the research process, in order to clarify the knowledge that guides pedagogical action, and identified practical difficulties related to meaningful learning among the students, thus providing referents for the teacher’s didactic action in the instrumental training, such as the identification of widespread and common technical and attitudinal mistakes amidst the bachelor degree students.
Ultrathin 90-degree sharp bends for spoof surface plasmon polaritons
DEFF Research Database (Denmark)
Yang, Yihao; Chen, Hongsheng; Xiao, Sanshui;
2015-01-01
surface plasmons around 90-degree sharp bends on ultrathin metallic films in the microwave regime. We demonstrate that by judiciously engineering the structure, the dispersion relation can be designed to reduce the scattering. Furthermore, the reflection can be suppressed by proper structural decoration...
Preservation of hepatocyte suspensions at 4 degrees C.
Lund, P; Wiggins, D
1988-10-01
Suspensions of rat hepatocytes are resistant to hypoxia for at least 24 hr at 4 degrees C. After storage for 24 hr with xylitol, sorbitol, or glycerol, their subsequent capacity for glucogenesis from these substrates is increased. Even storage under N2/CO2 as the gas phase has little deleterious effect.
Psychology Degrees: Employment, Wage, and Career Trajectory Consequences.
Rajecki, D W; Borden, Victor M H
2011-07-01
Psychology is a very popular undergraduate major. Examining wage data from a range of degree holders reveals much about the expected career trajectories of those with psychology degrees. First, regarding baccalaureates, psychology and other liberal arts graduates-compared with those from certain preprofessional and technical undergraduate programs-generally fall in relatively low tiers of salary levels at both starting and later career points. Salary levels among baccalaureate alumni groups correlate with averaged measures of salary satisfaction, repeated job seeking, and perceptions of underemployment. These patterns seem to stem from the specific occupational categories (job titles) entered by graduates in psychology compared with other graduates, calling into question the employability advantage of so-called generic liberal arts skills. Second, psychology master's degree holders also generally fall in a low tier of salary among their science, engineering, and health counterparts. Third, psychology college faculty (including instructors) fall in low tiers of salary compared with their colleagues from other academic fields. Such broadly based indications of the relative economic disadvantages of psychology degrees have implications for career counseling in the field.
Degrees of Durability and the New World of Credentialing
DiSalvio, Philip
2013-01-01
The erosion of the college credit monopoly, the devaluation of the degree and the rise of new forms of credentialing suggest a generation of students and higher education institutions somewhat different than the previous generation. Consider a higher learning environment where students create their own academic portfolios and shape their…
Searching for galaxy clusters in the Kilo-Degree Survey
Radovich, M.; Puddu, E.; Bellagamba, F.; Roncarelli, M.; Moscardini, L.; Bardelli, S.; Grado, A.; Getman, F.; Maturi, M.; Huang, Z.; Napolitano, N.; McFarland, J.; Valentijn, E.; Bilicki, M.
2017-01-01
In this paper, we present the tools used to search for galaxy clusters in the Kilo Degree Survey (KiDS), and our first results. The cluster detection is based on an implementation of the optimal filtering technique that enables us to identify clusters as over-densities in the distribution of galaxie
Associate in science degree education programs: organization, structure, and curriculum.
Galvin, William F
2005-09-01
After years of discussion, debate, and study, the respiratory care curriculum has evolved to a minimum of an associate degree for entry into practice. Although programs are at liberty to offer the entry-level or advanced level associate degree, most are at the advanced level. The most popular site for sponsorship of the associate degree in respiratory care is the community college. The basis for community college sponsorship seems to be its comprehensive curriculum, which focuses on a strong academic foundation in writing, communication, and the basic sciences as well as supporting a career-directed focus in respiratory care. Issues facing the community college are tied to literacy, outcomes, assessment, placement,cooperation with the community, partnerships with industry, and articulation arrangements with granting institutions granting baccalaureate degrees. Community colleges must produce a literate graduate capable of thriving in an information-saturated society. Assessment and placement will intensify as the laissez-faire attitudes toward attendance and allowing students to select courses without any accountability and evaluation of outcome become less acceptable. Students will be required to demonstrate steady progress toward established outcomes. Maintaining relations and cooperation with the local community and the health care industry will continue to be a prominent role for the community college. The challenge facing associate degree education in respiratory care at the community college level is the ability to continue to meet the needs of an expanding professional scope of practice and to provide a strong liberal arts or general education core curriculum. The needs for a more demanding and expanding respiratory care curriculum and for a rich general education core curriculum have led to increased interest in baccalaureate and graduate degree education. The value of associate degree education at the community college level is well established. It is
Celiac disease in first degree relatives of celiac children
Directory of Open Access Journals (Sweden)
Andreia Oliveira
2012-09-01
Full Text Available CONTEXT - The first degree relatives of celiac patients represent a high risk group for the development of this disorder, so their screening may be crucial in the prevention of long-term complications. OBJECTIVE - In order to determine the prevalence of celiac disease in a group of first degree relatives of children with proven gluten intolerance, we conducted a prospective study that consisted in the screening of celiac disease, using a capillary immunoassay rapid test that allows a qualitative detection of IgA antibody to human recombinant tissue transglutaminase (IgA-TTG. METHODS - When the screening test was positive subjects were advised to proceed with further investigation. The screening test was performed in 268 first degree relatives (143 mothers, 89 fathers, 36 siblings corresponding to 163 children with celiac disease. RESULTS - Screening test was positive in 12 relatives (4.5%, of which 1 refused to continue the investigation. In the remaining 11 relatives celiac disease was diagnosed in 7 cases (2.6%, 5 mothers, 2 fathers who had a median age of 39 years (27-56 years, mild gastrointestinal symptoms, high titre of IgA-TTG and histology abnormalities confirming the diagnosis. All these patients are currently on a gluten-free diet. CONCLUSION - The prevalence of celiac disease among first degree relatives (2.6% was 5 times higher than that in the general population. Although the recommendations for screening asymptomatic high risk groups, such as first degree relatives, are not unanimous the early diagnosis is crucial in preventing complications, including nutritional deficiency and cancer.
Chemistry teaching in the new degrees of Agricultural Engineering
Arce, Augusto; Tarquis, Ana Maria; Castellanos, Maria Teresa; Requejo, Maria Isabel; Cartagena, Maria Carmen
2013-04-01
The academic year 2011-12 is the second one implementing Bologna process in ETSI at the subjects of Agricultural Chemistry I and Chemistry II in the new four Degrees: Graduate in Engineering and Agricultural Science, Food Engineering Graduate, Graduate Environmental and engineering Graduate in Biotechnology, for it has been necessary to design and implement new interactive methodologies in the teaching-learning process based on the use of the virtual platform of the UPM, implement new evaluation systems that promote continued participation active student and the development of educational materials to support the subjects of chemistry designed new degrees within the EEES. In addition to the above actions, an assessment test prior chemistry knowledge has been made to all students who enter into Agricultural Grades, improving laboratory practices and the comparative study of academic obtained by the students of the new grades in the subjects of chemistry during the year 2011-12 compared to the 2010-11 academic year. More than 15,000 data have showed a good correlation between the student's prior knowledge, the level test performed, test scores, the overall success rate of the course and the abandonment of the different degrees. Academic results show a higher percentage of students enrolled and presented on a greater number of passes on students enrolled in the 2011-12 academic year for students enrolled in the previous academic year. The improved results have influenced the actions taken and the level of knowledge with students entering. Finally, we propose possible solutions to fix these results in future courses, aiming to improve the degree of efficiency, success and significant absenteeism in the first year as it will condition the dropout rate of these new degrees. Acknowledgements: Proyecto de Innovación Educativa N° IE02054-11/12 UPM. 2012.
Configuring Random Graph Models with Fixed Degree Sequences
Fosdick, Bailey K; Nishimura, Joel; Ugander, Johan
2016-01-01
Random graph null models have found widespread application in diverse research communities analyzing network datasets. The most popular family of random graph null models, called configuration models, are defined as uniform distributions over a space of graphs with a fixed degree sequence. Commonly, properties of an empirical network are compared to properties of an ensemble of graphs from a configuration model in order to quantify whether empirical network properties are meaningful or whether they are instead a common consequence of the particular degree sequence. In this work we study the subtle but important decisions underlying the specification of a configuration model, and investigate the role these choices play in graph sampling procedures and a suite of applications. We place particular emphasis on the importance of specifying the appropriate graph labeling---stub-labeled or vertex-labeled---under which to consider a null model, a choice that closely connects the study of random graphs to the study of...
The relative degree enhancement problem for MIMO nonlinear systems
Energy Technology Data Exchange (ETDEWEB)
Schoenwald, D.A. [Oak Ridge National Lab., TN (United States); Oezguener, Ue. [Ohio State Univ., Columbus, OH (United States). Dept. of Electrical Engineering
1995-07-01
The authors present a result for linearizing a nonlinear MIMO system by employing partial feedback - feedback at all but one input-output channel such that the SISO feedback linearization problem is solvable at the remaining input-output channel. The partial feedback effectively enhances the relative degree at the open input-output channel provided the feedback functions are chosen to satisfy relative degree requirements. The method is useful for nonlinear systems that are not feedback linearizable in a MIMO sense. Several examples are presented to show how these feedback functions can be computed. This strategy can be combined with decentralized observers for a completely decentralized feedback linearization result for at least one input-output channel.
Degree of molecular self-sorting in multicomponent systems.
Saha, Manik Lal; Schmittel, Michael
2012-06-28
Self-sorting represents the spontaneous and high fidelity self and/or non-self-recognition of two or more related components within a complex mixture. While the effective management of self-sorting principles perceptibly requires some key expertise in molecular programming, at a higher stage of operation it is of supreme interest to guide the process to increasingly higher degrees of self-sorting. In this article, we present the emerging principles of how to guide several components toward formation of self-sorted multicomponent architectures. To provide further guidance in denominating such systems, we suggest to utilise a systematic classification as well as a formula to evaluate their degree of self-sorting (M).
METHOD FOR SENSING DEGREE OF FLUIDIZATION IN FLUIDIZED BED
Levey, R.P. Jr.; Fowler, A.H.
1961-12-12
A method is given for detecting, indicating, and controlling the degree of fluidization in a fluid-bed reactor into which powdered material is fed. The method comprises admitting of gas into the reactor, inserting a springsupported rod into the powder bed of the reactor, exciting the rod to vibrate at its resonant frequency, deriving a signal responsive to the amplitude of vibi-ation of the rod and spring, the signal being directiy proportional to the rate of flow of the gas through the reactor, displaying the signal to provide an indication of the degree of fluidization within the reactor, and controlling the rate of gas flow into the reactor until said signal stabilizes at a constant value to provide substantially complete fluidization within the reactor. (AEC)
Galaxy evolution within the Kilo-Degree Survey
Tortora, C; La Barbera, F; Roy, N; Radovich, M; Getman, F; Brescia, M; Cavuoti, S; Capaccioli, M; Longo, G
2015-01-01
The ESO Public Kilo-Degree Survey (KiDS) is an optical wide-field imaging survey carried out with the VLT Survey Telescope and the OmegaCAM camera. KiDS will scan 1500 square degrees in four optical filters (u, g, r, i). Designed to be a weak lensing survey, it is ideal for galaxy evolution studies, thanks to the high spatial resolution of VST, the good seeing and the photometric depth. The surface photometry have provided with structural parameters (e.g. size and S\\'ersic index), aperture and total magnitudes have been used to derive photometric redshifts from Machine learning methods and stellar masses/luminositites from stellar population synthesis. Our project aimed at investigating the evolution of the colour and structural properties of galaxies with mass and environment up to redshift $z \\sim 0.5$ and more, to put constraints on galaxy evolution processes, as galaxy mergers.
Skin Burns Degree Determined by Computer Image Processing Method
Li, Hong-yan
In this paper a new method determining the degree of skin burns in quantities is put forward. Firstly, with Photoshop9.0 software, we analyzed the statistical character of skin burns images' histogram, and then turned the images of burned skins from RGB color space to HSV space, to analyze the transformed color histogram. Lastly through Photoshop9.0 software we get the percentage of the skin burns area. We made the mean of images' histogram,the standard deviation of color maps,and the percentage of burned areas as indicators of evaluating burns,then distributed indicators the weighted values,at last get the burned scores by summing the products of every indicator of the burns and the weighted values. From the classification of burned scores, the degree of burns can be evaluated.
Detection of endometrial lesions by degree of linear polarization maps
Kim, Jihoon; Fazleabas, Asgerally; Walsh, Joseph T.
2010-02-01
Endometriosis is one of the most common causes of chronic pelvic pain and infertility and is characterized by the presence of endometrial glands and stroma outside of the uterine cavity. A novel laparoscopic polarization imaging system was designed to detect endometriosis by imaging endometrial lesions. Linearly polarized light with varying incident polarization angles illuminated endometrial lesions. Degree of linear polarization image maps of endometrial lesions were constructed by using remitted polarized light. The image maps were compared with regular laparoscopy image. The degree of linear polarization map contributed to the detection of endometriosis by revealing structures inside the lesion. The utilization of rotating incident polarization angle (IPA) for the linearly polarized light provides extended understanding of endometrial lesions. The developed polarization system with varying IPA and the collected image maps could provide improved characterization of endometrial lesions via higher visibility of the structure of the lesions and thereby improve diagnosis of endometriosis.
Chemical Engineering Education in a Bologna Three Cycle Degree System
DEFF Research Database (Denmark)
Gani, Rafiqul
Europe, two types of higher education in ChE can be found: more research-oriented or more application-oriented first cycle (bachelor) programmes. Both types of studies cover a period of 3-4 academic years and 60 credits per year. After completion of the first cycle, students can continue their study......For the purpose of harmonization of European higher education, Europe’s education system has been going through major changes under what is commonly known as the ”Bologna Process”. The Bologna declaration in 1999 was the start of the introduction of a three cycle degree system in higher education...... in Europe. To date, many European universities have adopted this degree structure. The Working Party on Education (WPE) of the European Federation of Chemical Engineering (EFCE) carried out research to determine the contents of higher education in chemical engineering (ChE) and related disciplines...
4d SCFTs from negative-degree line bundles
Nardoni, Emily
2016-01-01
We construct 4d $\\mathcal{N}=1$ quantum field theories by compactifying the (2,0) theories on a Riemann surface with genus $g$ and $n$ punctures, where the normal bundle decomposes into a sum of two line bundles with possibly negative degrees $p$ and $q$. Until recently, the only available field-theoretic constructions required the line bundle degrees to be nonnegative, although supergravity solutions were constructed in the literature for the zero-puncture case for all $p$ and $q$. Here, we provide field-theoretic constructions and computations of the central charges of 4d $\\mathcal{N}=1$ SCFTs that are the IR limit of M5-branes wrapping a surface with general $p$ or $q$ negative, for general genus $g$ and number of maximal punctures $n$.
Fuzzy Genetic Algorithm Based on Principal Operation and Inequity Degree
Li, Fachao; Jin, Chenxia
In this paper, starting from the structure of fuzzy information, by distinguishing principal indexes and assistant indexes, give comparison of fuzzy information on synthesizing effect and operation of fuzzy optimization on principal indexes transformation, further, propose axiom system of fuzzy inequity degree from essence of constraint, and give an instructive metric method; Then, combining genetic algorithm, give fuzzy optimization methods based on principal operation and inequity degree (denoted by BPO&ID-FGA, for short); Finally, consider its convergence using Markov chain theory and analyze its performance through an example. All these indicate, BPO&ID-FGA can not only effectively merge decision consciousness into the optimization process, but possess better global convergence, so it can be applied to many fuzzy optimization problems.
The 2-degree Field Lensing Survey: design and clustering measurements
Blake, Chris; Amon, Alexandra; Childress, Michael; Erben, Thomas; Glazebrook, Karl; Harnois-Deraps, Joachim; Heymans, Catherine; Hildebrandt, Hendrik; Hinton, Samuel R.; Janssens, Steven; Johnson, Andrew; Joudaki, Shahab; Klaes, Dominik; Kuijken, Konrad; Lidman, Chris; Marin, Felipe A.; Parkinson, David; Poole, Gregory B.; Wolf, Christian
2016-11-01
We present the 2-degree Field Lensing Survey (2dFLenS), a new galaxy redshift survey performed at the Anglo-Australian Telescope. 2dFLenS is the first wide-area spectroscopic survey specifically targeting the area mapped by deep-imaging gravitational lensing fields, in this case the Kilo-Degree Survey. 2dFLenS obtained 70 079 redshifts in the range z relevant algorithms for joint imaging and spectroscopic analysis. The redshift sample consists first of 40 531 Luminous Red Galaxies (LRGs), which enable analyses of galaxy-galaxy lensing, redshift-space distortion, and the overlapping source redshift distribution by cross-correlation. An additional 28 269 redshifts form a magnitude-limited (r values are consistent with those obtained from LRGs in the Baryon Oscillation Spectroscopic Survey. 2dFLenS data products will be released via our website http://2dflens.swin.edu.au.
Fast Second Degree Total Variation Method for Image Compressive Sensing.
Liu, Pengfei; Xiao, Liang; Zhang, Jun
2015-01-01
This paper presents a computationally efficient algorithm for image compressive sensing reconstruction using a second degree total variation (HDTV2) regularization. Firstly, a preferably equivalent formulation of the HDTV2 functional is derived, which can be formulated as a weighted L1-L2 mixed norm of second degree image derivatives under the spectral decomposition framework. Secondly, using the equivalent formulation of HDTV2, we introduce an efficient forward-backward splitting (FBS) scheme to solve the HDTV2-based image reconstruction model. Furthermore, from the averaged non-expansive operator point of view, we make a detailed analysis on the convergence of the proposed FBS algorithm. Experiments on medical images demonstrate that the proposed method outperforms several fast algorithms of the TV and HDTV2 reconstruction models in terms of peak signal to noise ratio (PSNR), structural similarity index (SSIM) and convergence speed.
Periodic Orbits in Rotating Second Degree and Order Gravity Fields
Institute of Scientific and Technical Information of China (English)
Wei-Duo Hu; Daniel J.Scheeres
2008-01-01
Periodic orbits in an arbitrary 2nd degree and order uniformly rotating gravity field are studied. We investigate the four equilibrium points in this gravity field. We see that close relation exists between the stability of these equilibria and the existence and stability of their nearby periodic orbits. We check the periodic orbits with non-zero periods. In our searching procedure for these periodic orbits, we remove the two unity eigenvalues from the state transition matrix to find a robust, non-singular linear map to solve for the periodic orbits. The algorithm converges well, especially for stable periodic orbits. Using the searching procedure, which is relatively automatic, we find five basic families of periodic orbits in the rotating second degree and order gravity field for planar motion, and discuss their existence and stability at different central body rotation rates.
Trade Liberalization and the Degree of Competition in International Duopoly
DEFF Research Database (Denmark)
Ashournia, Damoun; Hansen, Per Svejstrup; Hansen, Jonas Worm
2013-01-01
products. Our main finding is that trade liberalization may have an anti-competitive effect. We find that there is no unique relation between a reduction in trade costs and the degree of competition. When products are differentiated, a lowering of trade costs is pro-competitive if trade costs are initially......This paper analyzes how a reduction in trade costs influences the possibility for firms to engage in international cartels, and hence how trade liberalization affects the degree of competition. We consider a particular intra-industry trade model amended to allow for firms producing differentiated...... high, but anti-competitive if trade costs initially are low. Hence, trade policy is not necessarily a substitute for competition policy...
Holographic cosmology and its relevant degrees of freedom
Energy Technology Data Exchange (ETDEWEB)
Dawid, Richard
1999-07-14
We reconsider the options for cosmological holography. We suggest that a global and time-symmetric version of the Fischler-Susskind bound is the most natural generalization of the holographic bound encountered in AdS and De Sitter space. A consistent discussion of cosmological holography seems to imply an understanding of the notion of ''number of degrees of freedom'' that deviates from its simple definition as the entropy of the current state. The introduction of a more adequate notion of degree of freedom makes the suggested variation of the Fischler-Susskind bound look like a stringent and viable bound in all 4-dimensional cosmologies without a cosmological constant.
Degree Fluctuations and the Convergence Time of Consensus Algorithms
Olshevsky, Alex
2011-01-01
We consider a consensus algorithm in which every node in a time-varying undirected connected graph assigns equal weight to each of its neighbors. Under the assumption that the degree of any given node is constant in time, we show that the algorithm achieves consensus within a given accuracy epsilon on n nodes in time O(n^3 log(n/epsilon)). Because there is a direct relation between consensus algorithms in time-varying environments and inhomogeneous random walks, our result also translates into a general statement on such random walks. Moreover, we give simple proofs that the convergence time becomes exponentially large in the number of nodes n under slight relaxations of the above assumptions. We prove that exponential convergence time is possible for consensus algorithms on fixed directed graphs, and we use an example of Cao, Spielman, and Morse to give a simple argument that the same is possible if the constant degrees assumption is even slightly relaxed.
An Implicit Weighted Degree Condition For Heavy Cycles
Directory of Open Access Journals (Sweden)
Cai Junqing
2014-11-01
Full Text Available For a vertex v in a weighted graph G, idw(v denotes the implicit weighted degree of v. In this paper, we obtain the following result: Let G be a 2-connected weighted graph which satisfies the following conditions: (a The implicit weighted degree sum of any three independent vertices is at least t; (b w(xz = w(yz for every vertex z ∈ N(x ∩ N(y with xy /∈ E(G; (c In every triangle T of G, either all edges of T have different weights or all edges of T have the same weight. Then G contains either a hamiltonian cycle or a cycle of weight at least 2t/3. This generalizes the result of Zhang et al. [9].
A Modularity Degree Based Heuristic Community Detection Algorithm
Directory of Open Access Journals (Sweden)
Dongming Chen
2014-01-01
Full Text Available A community in a complex network can be seen as a subgroup of nodes that are densely connected. Discovery of community structures is a basic problem of research and can be used in various areas, such as biology, computer science, and sociology. Existing community detection methods usually try to expand or collapse the nodes partitions in order to optimize a given quality function. These optimization function based methods share the same drawback of inefficiency. Here we propose a heuristic algorithm (MDBH algorithm based on network structure which employs modularity degree as a measure function. Experiments on both synthetic benchmarks and real-world networks show that our algorithm gives competitive accuracy with previous modularity optimization methods, even though it has less computational complexity. Furthermore, due to the use of modularity degree, our algorithm naturally improves the resolution limit in community detection.
Doctoral degree in health professions: professional needs and legal requirement.
Marušić, Matko; Mimica, Mladen; Mihanović, Frane; Janković, Stipan
2013-01-01
To respond to ever increasing complexity of health care professions, education of nurses, midwives, physiotherapists, radiology engineers, and medical laboratory workers, has been upgraded to pregraduate, graduate and postgraduate university levels. In Croatia, nursing was defined as a branch of clinical medical science in 1997. Croatia and Bosnia and Herzegovina have introduced first two levels, but there is a strong need for the third one (doctoral degree). It should last three years and contain 180 ECTS points. It includes acquisition of evidence-based advanced health care, and the ability for independent research and critical analysis. Doctoral degrees in health professions are instrumental for academic careers of faculty of health professions. Yet this will not separate them from their patients or make them administrators, as the majority of their work will still be spent alongside patients. Copyright © 2013 by Academy of Sciences and Arts of Bosnia and Herzegovina.
Dense hadron star in quark degree of freedom
Directory of Open Access Journals (Sweden)
Tzeng Yiharn
2014-03-01
Full Text Available The quark degree of freedom may play an important role as one studies dense hadron stars which can help to understand the universe origin. We add a temperature dependence to the effective quark mass adopted from a quark-quark interaction on the QCD basis to probe properties of the star in the quark degree of freedom. Based on this interaction, the quark matter’s equation of state is obtained and its thermodynamic characteristics is investigated in detail. Stability of a star made of such matter is examined with and without strange quarks. The Tolman-Oppenheimer-Volkov equation along with the condition that dm=dr = 4πr2E are used to calculate mass and radius of such a star. Exact computations are made to calculate the star’s radius and mass at several temperatures. Comparisons of results from these temperatures are made and the significance is carefully investigated and discussed.
An alternative method to specify the degree of resonator stability
Indian Academy of Sciences (India)
Jogy George; K Ranganathan; T P S Nathan
2007-04-01
We present an alternative method to specify the stability of real stable resonators. We introduce the degree of optical stability or the parameter, which specify the stability of resonators in a numerical scale ranging from 0 to 100%. The value of zero corresponds to marginally stable resonator and < 0 corresponds to unstable resonator. Also, three definitions of the S parameter are provided: in terms of &, & R0 and 12. It may be noticed from the present formalism that the maximum degree of stability with = 1 automatically corresponds to 12 = 1/2. We also describe the method to measure the parameter from the output beam characteristics and parameter. A possible correlation between the parameter and the misalignment tolerance is also discussed.
Analysis of High Degree Nodes in a Social Network
Directory of Open Access Journals (Sweden)
Nadeem Akhtar
2013-05-01
Full Text Available Online Social Network platforms(e.g. Facebook, LinkedIn, Flickr, Instant Messenger etc provide a deeper comprehension of social networks and hence render the basis for social network analysis. The huge amount of data from these sites has given a boost to the researchers who examine a network from different perspectives through various SNA methods. The development of network analysis tools have further helped to extract actionable patterns which are useful for business, consumers, and users. This study is a part of the growing body of research on Social Network Analysis and make use of a Facebook network to analyze the attributes of high degree nodes (users having greater number of friends and to uncover the hidden relationships of that network. Results show that there is little association among high degree nodes
Collecting Students ’ Degree of Comprehension with Mobile Phones
2006-01-01
It is important for teachers to know how well students understand course content. It is possible for teachers to collect such data with a web interface in computer-equipped classrooms, but this is difficult for teachers in traditional classrooms. Mobile phones with Internet capability are very popular among students in Japan, so we implemented a classroom support system to collect students ’degree of comprehension of course content using mobile phones. We devised this system to offer better ...
New Method for Identifying Finite Degree Volterra Series
Suleiman, Wael; Monin, André
2008-01-01
International audience; In this paper, the identification of a class of nonlinear systems which admits input-output maps described by a finite degree Volterra series is considered. In actual fact, it appears that this class can model many important nonlinear multivariable processes not only in engineering, but also in biology, socio-economics, and ecology. To solve this identification problem, we propose a method based on a local gradient search in a local parameterization of the state space ...
Finite Groups with Character Degrees of Two Distinct Primes
Institute of Scientific and Technical Information of China (English)
无
2006-01-01
It is proved that if the degree of any non-linear irreducible character of a finite group G is a product of powers of two given distinct prime integers p and q, then G has an abelian Hall {p,q}-subgroup H and an Abelian normal {p, q}-complement A, and the centralizer in A of the Sylow p-subgroup of G is equal to the centralizer in A of the Sylow q-subgroup of G.
The total chromatic number of regular graphs of high degree
Institute of Scientific and Technical Information of China (English)
2009-01-01
The total chromatic number χT (G) of a graph G is the minimum number of colors needed to color the edges and the vertices of G so that incident or adjacent elements have distinct colors. We show that if G is a regular graph and d(G) 32 |V (G)| + 263 , where d(G) denotes the degree of a vertex in G, then χT (G) d(G) + 2.
Consequence clauses with a meaning of measure and degree
Directory of Open Access Journals (Sweden)
Nikolić Marina M.
2015-01-01
Full Text Available The objective of this paper is to present a new classification of consequence clauses that is based on a category of degree. Based on that parameter, consequence clauses are classified into the ones that have a meaning of degree and the ones that don’t have that meaning. Furthemore, consequence clauses with a meaning of degree can be divided into the clauses with a meaning of measure (Napolju je toliko hladno da smo se odmah vratili iz šetnje./It is so cold outside that we had to return immediately back; On je takav prevarant, da će te sigurno preći/ He is such a chouse - he will cheat for sure. and into excessive clauses (Previše je debela da uđe u tu haljinu/ She is too fat to fit in this dress; Devojčica je premalena da ostane sama kod kuće/ The girl is too small to stay at home alone; Buka je bila dovoljna da natera dete u plač/The noise was loud enough to cause the baby cry. The article provides the arguments that the category of degree in this sentences is grammaticalized with the help of certain modifiers and a conjunction of result da. The author applies the onomasiological method in the analysis and uses the theory of semantic locations. An existence of certain meanings is confirmed by the transformational test. [Projekat Ministarstva nauke Republike Srbije, br. 178021: Opis i standardizacija savremenog srpskog jezika, potprojekat: Sintaksa složene rečenice
Graphs of odd girth 7 with large degree
DEFF Research Database (Denmark)
Brandt, Stephan; Ribe-Baumann, E.
2009-01-01
We show that every graph with minimum degree δ > 4 n / 17 and no odd cycles of length 3 or 5 is homomorphic with the Möbius ladder with 6 rungs and include the extremal graph characterization in the case of equality. The key tools used in our observations are simple characteristics of maximal odd...... girth 7 graphs. © 2009 Elsevier B.V. All rights reserved....
Kinetics of swelling of polyelectrolyte gels: Fixed degree of ionization
Sen, Swati; Kundagrami, Arindam
2015-12-01
The swelling kinetics of uncharged and charged polymer (polyelectrolyte) gels in salt-free conditions is studied in one dimension by solving the constitutive equation of motion (Newton's law for the elementary gel volume) of the displacement variable by two theoretical methods: one in which the classical definition of stress is used with the bulk modulus taken as a parameter, and the other in which a phenomenological expression of the osmotic stress as a function of polymer density and degree of ionization is taken as an input to the dynamics. The time-evolution profiles for spatially varying polymer density and stress, along with the location of the gel-solvent interface, are obtained from the two methods. We show that both the polymer density (volume fraction) and stress inside the gel follow expected behaviours of being maximum for the uniformly shrunken gel, and relaxing slowly to the lowest values as the gel approaches equilibrium. We further show that, by comparing the temporal profiles of the gel-solvent interface and other variables between the two methods, one may attempt to assign an effective bulk modulus to the polyelectrolyte gel as a function of the degree of ionization and other parameters of the gel such as hydrophobicity, cross-link density, and the temperature. The major result we get is that the effective bulk modulus of a polyelectrolyte gel increases monotonically with its degree of ionization. In the process of identifying the parameters for a monotonic swelling, we calculated using a well-known expression of the free energy the equilibrium results of two-phase co-existence and the critical point of a polyelectrolyte gel with a fixed degree of ionization.
Nursing education progression: associate degree nursing faculty perspective.
O'Neal, Dale; Zomorodi, Meg; Wagner, Jennie
2015-01-01
The purpose of this survey was to examine the attitudes, influences, and practices of associate degree nursing (ADN) faculty in relation to advising students about nursing education progression. The results indicated that ADN faculty have a sense of moral and personal role responsibility to encourage students to continue their education. Deficits in faculty knowledge of program details and multiple demands on their time are factors that influence advising practices.
Kinetics of swelling of polyelectrolyte gels: Fixed degree of ionization
Energy Technology Data Exchange (ETDEWEB)
Sen, Swati; Kundagrami, Arindam, E-mail: arindam@iiserkol.ac.in [Department of Physical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, West Bengal (India)
2015-12-14
The swelling kinetics of uncharged and charged polymer (polyelectrolyte) gels in salt-free conditions is studied in one dimension by solving the constitutive equation of motion (Newton’s law for the elementary gel volume) of the displacement variable by two theoretical methods: one in which the classical definition of stress is used with the bulk modulus taken as a parameter, and the other in which a phenomenological expression of the osmotic stress as a function of polymer density and degree of ionization is taken as an input to the dynamics. The time-evolution profiles for spatially varying polymer density and stress, along with the location of the gel-solvent interface, are obtained from the two methods. We show that both the polymer density (volume fraction) and stress inside the gel follow expected behaviours of being maximum for the uniformly shrunken gel, and relaxing slowly to the lowest values as the gel approaches equilibrium. We further show that, by comparing the temporal profiles of the gel-solvent interface and other variables between the two methods, one may attempt to assign an effective bulk modulus to the polyelectrolyte gel as a function of the degree of ionization and other parameters of the gel such as hydrophobicity, cross-link density, and the temperature. The major result we get is that the effective bulk modulus of a polyelectrolyte gel increases monotonically with its degree of ionization. In the process of identifying the parameters for a monotonic swelling, we calculated using a well-known expression of the free energy the equilibrium results of two-phase co-existence and the critical point of a polyelectrolyte gel with a fixed degree of ionization.
Wh-islands in degree questions: A semantic approach
Directory of Open Access Journals (Sweden)
Márta Abrusán
2011-09-01
Full Text Available It is proposed that wh-islands with degree questions are unacceptable because they cannot be given a most informative true answer. Wh-islands thus are shown to be similar to other cases of weak islands which have been argued to result from Maximization Failure, in particular negative islands (cf. Fox & Hackl 2007. Permanent DOI link: http://dx.doi.org/10.3765/sp.4.5 BibTeX info
Kappa and q Indices: Dependence on the Degrees of Freedom
Directory of Open Access Journals (Sweden)
George Livadiotis
2015-04-01
Full Text Available The kappa distributions, or their equivalent, the q-exponential distributions, are the natural generalization of the classical Boltzmann-Maxwell distributions, applied to the study of the particle populations in collisionless space plasmas. A huge step in the development of the theory of kappa distributions and their applications in space plasma physics has been achieved with the discovery that the observed kappa distributions are connected with the solid statistical background of non-extensive statistical mechanics. Now that the statistical framework has been identified, it is straightforward to improve our understanding of the nature of the kappa index (or the entropic q-index that governs these distributions. One critical topic is the dependence of the kappa index on the degrees of freedom. In this paper, we first show how this specific dependence is naturally emerged, using the formalism of the N-particle kappa distribution of velocities. Then, the result is extended in the presence of potential energies. It is shown that the kappa index is simply related to the kinetic and potential degrees of freedom. In addition, it is shown that various problems of non-extensive statistical mechanics, such as (i the correlation dependence on the total number of particles; and (ii the normalization divergence for finite kappa indices, are resolved considering the kappa index dependence on the degrees of freedom.
Improved Degree Search Algorithms in Unstructured P2P Networks
Directory of Open Access Journals (Sweden)
Guole Liu
2012-01-01
Full Text Available Searching and retrieving the demanded correct information is one important problem in networks; especially, designing an efficient search algorithm is a key challenge in unstructured peer-to-peer (P2P networks. Breadth-first search (BFS and depth-first search (DFS are the current two typical search methods. BFS-based algorithms show the perfect performance in the aspect of search success rate of network resources, while bringing the huge search messages. On the contrary, DFS-based algorithms reduce the search message quantity and also cause the dropping of search success ratio. To address the problem that only one of performances is excellent, we propose two memory function degree search algorithms: memory function maximum degree algorithm (MD and memory function preference degree algorithm (PD. We study their performance including the search success rate and the search message quantity in different networks, which are scale-free networks, random graph networks, and small-world networks. Simulations show that the two performances are both excellent at the same time, and the performances are improved at least 10 times.
Anxiety in Spanish EFL students in different university degree programmes
Directory of Open Access Journals (Sweden)
Patricia Arnaiz-Castro
2013-05-01
Full Text Available Researchers have studied the effects of anxiety on foreign language learning since the 1970's, and despite significant advances in approaches to language teaching, the literature continues to report the existence of language apprehension in the classroom and its debilitating effect on the learning process. However, very few studies have been developed in a socio-cultural context comparable to ours, namely, a Spanish university in which English is learnt. This study set out to examine and compare the feelings of anxiety experienced by university students enrolled in six different degree programs. A total of 200 students participated in this study. The data were collected using the Foreign Language Classroom Anxiety Scale (FLCAS (Horwitz, Horwitz and Cope, 1986. The analyses reveal, firstly, that all the students suffered from average anxiety levels; secondly, that only in one of the aspects is the anxiety level of participants with English as a main subject (i.e. chosen lower than that of participants for whom English is a non-elective degree requirement; and in the third place, that the relationship between anxiety and the mark obtained by participants is stronger in the case of those who have English as a degree requirement. The implications of these results for a better understanding of anxiety and foreign language learning are discussed.
Five Degree of Freedom Fluorescence Localization of Ellipsoidal Particles
Snoeyink, Craig; Islam, Md. Anisul; Christopher, Gordon
2016-11-01
Symmetry breaking non-spherical particles can exhibit unique behavior when self-assembling due to increased degrees of freedom. For example, ellipsoidal particles on a fluid interface exhibit mesostructures that are dependent upon the both the contact angle of the ellipsoidal particle as well as the orientation. However, measuring the three dimensional position and orientation of these particles can be challenging. Here we present preliminary results on five degree of freedom fluorescence measurements of ellipsoidal particles on a fluid interface. Using the Bessel Beam Microscopy system and a novel compressed sensing based image analysis algorithm we will demonstrate 3D localization of ellipsoidal particles with 50 nm accuracy as well as pitch and yaw measurements with a resolution of 10 and 1 degrees respectively. We will discuss the technique as well as its implications for our understanding of non-spherical particle interactions and assembly at interfaces. This material is based upon work supported by the National Science Foundation under Grant No. 1604398.
A survey of degree completion programs in dental hygiene education.
Portillo, Karen M; Rogo, Ellen J; Calley, Kristin H; Cellucci, Leigh W
2013-05-01
The purpose of this descriptive study was to identify specific information related to U.S. dental hygiene baccalaureate degree completion programs. Learning experiences, assessment methods, and baccalaureate institutional partnerships were assessed. Of the sixty dental hygiene programs that offer a degree completion program, the forty-two that met the inclusion criteria (including having operated for at least three years) were invited to participate in a thirty-eight item online survey. A 62 percent (n=26) response rate was obtained. Learning experiences in responding programs included core dental hygiene courses, general education courses, and elective dental hygiene courses. Emphasis areas offered by various programs were in the specialty areas of education, public or community health, and research. Respondents reported that their graduates were employed in multiple settings (65 percent; n=17), with 19 percent (n=5) reporting employment in the combined grouping of private practice, education, and public health. Institutional partnerships included articulation agreements (88 percent; n=21), community college baccalaureate (8 percent; n=2), and university extension (4 percent; n=1) models. The findings of this study provide a baseline for assessing the educational composition and design of U.S. dental hygiene degree completion programs. However, results of this study showed inconsistencies among learning experiences that might raise concerns when considering students' level of preparation for graduate education and future leadership roles in the profession.
Estimating degree day factors from MODIS for snowmelt runoff modeling
Directory of Open Access Journals (Sweden)
Z. H. He
2014-07-01
Full Text Available Degree-day factors are widely used to estimate snowmelt runoff in operational hydrological models. Usually, they are calibrated on observed runoff, and sometimes on satellite snow cover data. In this paper, we propose a new method for estimating the snowmelt degree-day factor (DDFS directly from MODIS snow covered area (SCA and ground based snow depth data without calibration. Subcatchment snow volume is estimated by combining SCA and snow depths. Snow density is estimated as the ratio of observed precipitation and changes in the snow volume for days with snow accumulation. Finally, DDFS values are estimated as the ratio of changes in the snow water equivalent and degree-day temperatures for days with snow melt. We compare simulations of basin runoff and snow cover patterns using spatially variable DDFS estimated from snow data with those using spatially uniform DDFS calibrated on runoff. The runoff performances using estimated DDFS are slightly improved, and the simulated snow cover patterns are significantly more plausible. The new method may help reduce some of the runoff model parameter uncertainty by reducing the total number of calibration parameters.
Giant component in random multipartite graphs with given degree sequences
Directory of Open Access Journals (Sweden)
David Gamarnik
2015-12-01
Full Text Available We study the problem of the existence of a giant component in a random multipartite graph. We consider a random multipartite graph with p parts generated according to a given degree sequence ndi(n, n≥1 which denotes the number of vertices in part i of the multipartite graph with degree given by the vector d in an n-node graph. We assume that the empirical distribution of the degree sequence converges to a limiting probability distribution. Under certain mild regularity assumptions, we characterize the conditions under which, with high probability, there exists a component of linear size. The characterization involves checking whether the Perron-Frobenius norm of the matrix of means of a certain associated edge-biased distribution is greater than unity. We also specify the size of the giant component when it exists. We use the exploration process of Reed Molloy and Reed (1995 to analyze the size of components in the random graph. The main challenges arise due to the multidimensionality of the random processes involved which prevents us from directly applying the techniques from the standard unipartite case. In this paper we use techniques from the theory of multidimensional Galton-Watson processes along with Lyapunov function technique to overcome the challenges.
Model Checking Degrees of Belief in a System of Agents
Raimondi, Franco; Primero, Giuseppe; Rungta, Neha
2014-01-01
Reasoning about degrees of belief has been investigated in the past by a number of authors and has a number of practical applications in real life. In this paper we present a unified framework to model and verify degrees of belief in a system of agents. In particular, we describe an extension of the temporal-epistemic logic CTLK and we introduce a semantics based on interpreted systems for this extension. In this way, degrees of beliefs do not need to be provided externally, but can be derived automatically from the possible executions of the system, thereby providing a computationally grounded formalism. We leverage the semantics to (a) construct a model checking algorithm, (b) investigate its complexity, (c) provide a Java implementation of the model checking algorithm, and (d) evaluate our approach using the standard benchmark of the dining cryptographers. Finally, we provide a detailed case study: using our framework and our implementation, we assess and verify the situational awareness of the pilot of Air France 447 flying in off-nominal conditions.
Classification of different degrees of adiposity in sedentary rats
Energy Technology Data Exchange (ETDEWEB)
Leopoldo, A.S.; Lima-Leopoldo, A.P. [Departamento de Desportos, Centro de Educação Física e Esportes, Universidade Federal do Espírito Santo, Vitória, ES (Brazil); Nascimento, A.F.; Luvizotto, R.A.M.; Sugizaki, M.M. [Instituto de Ciências da Saúde, Universidade Federal do Mato Grosso, Sinop, MT (Brazil); Campos, D.H.S.; Silva, D.C.T. da [Departamento de Clínica Médica, Faculdade de Medicina, Universidade Estadual Paulista, Botucatu, SP (Brazil); Padovani, C.R. [Departamento de Bioestatística, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, SP (Brazil); Cicogna, A.C. [Departamento de Clínica Médica, Faculdade de Medicina, Universidade Estadual Paulista, Botucatu, SP (Brazil)
2016-02-23
In experimental studies, several parameters, such as body weight, body mass index, adiposity index, and dual-energy X-ray absorptiometry, have commonly been used to demonstrate increased adiposity and investigate the mechanisms underlying obesity and sedentary lifestyles. However, these investigations have not classified the degree of adiposity nor defined adiposity categories for rats, such as normal, overweight, and obese. The aim of the study was to characterize the degree of adiposity in rats fed a high-fat diet using cluster analysis and to create adiposity intervals in an experimental model of obesity. Thirty-day-old male Wistar rats were fed a normal (n=41) or a high-fat (n=43) diet for 15 weeks. Obesity was defined based on the adiposity index; and the degree of adiposity was evaluated using cluster analysis. Cluster analysis allowed the rats to be classified into two groups (overweight and obese). The obese group displayed significantly higher total body fat and a higher adiposity index compared with those of the overweight group. No differences in systolic blood pressure or nonesterified fatty acid, glucose, total cholesterol, or triglyceride levels were observed between the obese and overweight groups. The adiposity index of the obese group was positively correlated with final body weight, total body fat, and leptin levels. Despite the classification of sedentary rats into overweight and obese groups, it was not possible to identify differences in the comorbidities between the two groups.
THE MAXIMUM AND MINIMUM DEGREES OF RANDOM BIPARTITE MULTIGRAPHS
Institute of Scientific and Technical Information of China (English)
Chen Ailian; Zhang Fuji; Li Hao
2011-01-01
In this paper the authors generalize the classic random bipartite graph model, and define a model of the random bipartite multigraphs as follows: let m=m(n) be a positive integer-valued function on n and (n, m; {pk}) the probability space consisting of all the labeled bipartite multigraphs with two vertex sets A={a1,a2,...,an} and B= {b1, b2,..., bm}, in which the numbers taibj of the edges between any two vertices ai∈A and bj∈B are identically distributed independent random variables with distribution P{taibj}=k}=pk, k=0, 1, 2,..., where pk≥0 and ∑ pk=1. They obtain that Xc,d,A, the number of vertices in A with degree between c and d of Gn,m∈ (n, m;{Pk}) has asymptotically Poisson distribution, and answer the following two questions about the space (n,m; {pk}) with {pk} having geometric distribution, binomial distribution and Poisson distribution, respectively. Under which condition for {Pk} can there be a function D(n) such that almost every random multigraph Gnm∈ (n, m; {pk}) has maximum degree D(n) in A? under which condition for {pk} has almost every multigraph Gn,m∈ (n,m;{pk}) a unique vertex of maximum degree in A?
HIGH DEGREE SPONDYLOLISTHESIS IN ADULTS: MONOSEGMENTAL REDUCTION AND FIXATION
Directory of Open Access Journals (Sweden)
Eduardo Henrique Chiovato Abdala
2015-09-01
Full Text Available Objective:To evaluate a method to reduce high degree spondylolisthesis in adults with monosegmental fixing preserving the adjacent level and the improvement of sagittal balance.Methods:A prospective study, with 12 adult patients with high degree spondylolisthesis (III and IV in adults who underwent surgery by the same team. We included 7 women and 5 men with a mean age of 37 years and lombosciatalgy that had no improvement with conservative treatment. The surgical technique used was total or partial reduction by Spondylolisthesis Reduction Instrument (SRI system, with instrumentation only in the affected level, thus sparing the adjacent level, associated with 360ofusion.Results:The L5-S1 level was involved in nine patients, L4-L5 in two, and VT-S1 in one patient. The isthmic type predominated in nine patients, followed by dysplastic type in two, and one iatrogenic spondylolisthesis. These patients were assessed by the Oswestry scale, which showed a preoperative average of 59% and postoperative average of 12.4% (P<0.05. A significant improvement in the average slip angle from 54.66% to 9.5% (35% to 0% was found. No major complications such as infection, neurological damage or material breaks were observed.Conclusion:The reduction of high degree listhesis instrumenting only the affected level produces good results, with good control of pain and functional improvement of patients. However, a larger follow-up is required to better evaluation.
Comparative analysis of the gastroptosis and degree of obesity
Energy Technology Data Exchange (ETDEWEB)
Park, Myung Je [Korea Association of Health Promotion, Seoul (Korea, Republic of)
2006-12-15
This study designed for identifying whether female and the thin and the light have gastroptosis more, as known from long time ago, or not, through analyzing correlation of gastroptosis and degree of obesity. People who are subject of health examination for adult disease, who visited a health examination hospital at downtown in pusan, and then are received health examination, who are conducted UGI series between January and June in 2006 are eligible for the study. During the same period, randomised 584 people without gastroptosis were enrolled, grouped with sex and age, and each group involved 73 people. The classification of figure of body was based on standard weight table, and Broca's fomular was used for calculation of degree of obesity, and then We get the result, as following. The women (514/584) have gastroptosis more than men (70/584). Gastroptosis is most common in 90-109%, 54.3% of male, 56.4% of female. The man 90% under, the woman appeared with 110-119%. In the distribution of degree of obesity between ages, gastroptosis is more common at the fifties, and there is no sexual difference.
[Public health competencies and contents in Spanish undergraduate medical degrees].
Davó-Blanes, M Carmen; Vives-Cases, Carmen; Barrio-Fernández, José Luis; Porta, Miquel; Benavides, Fernando G; de Miguel, Ángel Gil
2016-01-01
To reach a consensus among public health faculty from various Spanish universities about the core public health competencies that should be integrated into undergraduate medical degrees. The 2nd Forum of University Teachers was held at the Rey Juan Carlos University (Madrid, 11-12 December 2014). Twenty-four university professors and lecturers from 19 Spanish universities imparting medical degrees participated in the forum. They were distributed in three working groups during three working sessions. In the first session, they were asked to identify and classify core public health competencies for medical degrees. In the second, they were asked to propose public health contents for the identified competencies. In the third session, the participants organized these contents in thematic blocks. The results were discussed in distinct plenary sessions. The highest number of core competencies was identified in the activities related to the public health functions «Assessment of the population's health needs» and «Developing health policies». The final programme included basic contents organised into five units: Concept of health, public health and its determinants; Epidemiology and health research; Determinants and health problems; Strategies, interventions and policies; and health systems, clinical and healthcare management. The public health core competencies and contents identified in this Forum may be considered as a starting point to improve and update public health training programmes for future medical professionals. Copyright © 2015 SESPAS. Published by Elsevier Espana. All rights reserved.
Degree heterogeneity in spatial networks with total cost constraint
Liu, Weiping; Zhou, Yanbo
2011-01-01
Recently, In [Phys. Rev. Lett. 104, 018701 (2010)] the authors studied a spatial network which is constructed from a regular lattice by adding long-range edges (shortcuts) with probability $P_{ij}\\sim r_{ij}^{-\\alpha}$, where $r_{ij}$ is the Manhattan length of the long-range edges. The total length of the additional edges is subject to a cost constraint ($\\sum r=C$). These networks have fixed optimal exponent $\\alpha$ for transportation (measured by the average shortest-path length). However, we observe that the degree in such spatial networks is homogenously distributed, which is far different from real networks such as airline systems. In this paper, we propose a method to introduce degree heterogeneity in spatial networks with total cost constraint. Results show that with degree heterogeneity the optimal exponent shifts to a smaller value and the average shortest-path length can further decrease. Moreover, we consider the synchronization on the spatial networks and related results are discussed. Our new m...
Constructing and sampling directed graphs with given degree sequences
Kim, H; Bassler, K E; Toroczkai, Z
2011-01-01
The interactions between the components of complex networks are often directed. Proper modeling of such systems frequently requires the construction of ensembles of digraphs with a given sequence of in- and out-degrees. As the number of simple labeled graphs with a given degree sequence is typically very large even for short sequences, sampling methods are needed for statistical studies. Currently, there are two main classes of methods that generate samples. One of the existing methods first generates a restricted class of graphs, then uses a Markov Chain Monte-Carlo algorithm based on edge swaps to generate other realizations. As the mixing time of this process is still unknown, the independence of the samples is not well controlled. The other class of methods is based on the Configuration Model that may lead to unacceptably many sample rejections due to self-loops and multiple edges. Here we present an algorithm that can directly construct all possible realizations of a given bi-degree sequence by simple di...
Degree distance and Gutman index of increasing trees
Directory of Open Access Journals (Sweden)
Ramin Kazemi
2016-06-01
Full Text Available The Gutman index and degree distance of a connected graph G G are defined as Gut(G=∑ {u,v}⊆V(G d(ud(vd G (u,v, Gut(G=∑{u,v}⊆V(Gd(ud(vdG(u,v, and DD(G=∑ {u,v}⊆V(G (d(u+d(vd G (u,v, DD(G=∑{u,v}⊆V(G(d(u+d(vdG(u,v, respectively, where d(u d(u is the degree of vertex u u and d G (u,v dG(u,v is the distance between vertices u u and v v. In this paper, through a recurrence equation for the Wiener index, we study the first two moments of the Gutman index and degree distance of increasing trees.
Absorption degree analysis on biogas separation with ionic liquid systems.
Zhang, Xin; Zhang, Suojiang; Bao, Di; Huang, Ying; Zhang, Xiangping
2015-01-01
For biogas upgrading, present work mainly focuses on either thermodynamics or mass transfer properties. A systematical study on these two aspects is important for developing a new biogas separation process. In this work, a new criterion "absorption degree", which combines both thermodynamics and mass transfer properties, was proposed for the first time to comprehensively evaluate the absorption performance. Henry's law constants of CO2 and CH4 in ionic liquids-polyethylene glycol dimethyl ethers mixtures were investigated. The liquid-side mass transfer coefficients (kL) were determined. The results indicate that IL-NHD mixtures exhibit not only a high CO2/CH4 selectivity, but also a fast kL for CO2 absorption. The [bmim][NO3]+NHD mixtures present a high absorption degree value for CO2 but a low value for CH4. For presenting a highest relative absorption degree value, the 50wt% [bmim][NO3]+50wt% NHD mixture is recommended for biogas upgrading.
Approaches to characterize the degree of water repellency
Letey, J.; Carrillo, M. L. K.; Pang, X. P.
2000-05-01
Measurement techniques that quantify the degree of soil water repellency are important for research and for the communication of research findings. The water drop penetration time (WDPT) is a commonly used measurement. If a water drop does not enter the soil spontaneously, the soil-water contact angle is greater than 90° and the soil is considered to be water repellent. The time for the drop to enter the soil (WDPT) provides an indication of the stability of the repellency. The liquid-air surface tension of an aqueous ethanol concentration series that enters the soil in approximately 5 s is identified as the ninety degree (ND) surface tension, γND, of the soil. The γND number can be used to calculate the solid-air surface tension, γs, by γs= γND/4. The water-soil contact angle can also be calculated from the γs value by the relationship cos θ=[(γ ND/γ w) 1/2-1], where θ is the contact angle and γw the water-air surface tension. The water entry pressure, hp, which is a function of both the soil water repellency and pore size, is an important parameter for predicting infiltration and the stability of water flow in the field. Measurements of WDPT, γND, and hp provide a complete characterization of the degree of water repellency.
Complexity of Splits Reconstruction for Low-Degree Trees
Gaspers, Serge; Stein, Maya; Suchan, Karol
2010-01-01
Given a vertex-weighted tree T, the split of an edge xy in T is min(s_x, s_y) where s_x (respectively, s_y) is the sum of all weights of vertices that are closer to x than to y (respectively, closer to y than to x) in T. Given a set of weighted vertices V and a multiset of splits S, we consider the problem of constructing a tree on V whose splits correspond to S. The problem is known to be NP-complete even when all vertices have unit weight and the maximum vertex degree of T is required to be no more than 4. We show that the problem is even strongly NP-complete when T is required to be a path. For this variant we also exhibit an algorithm that runs in polynomial time when the number of distinct vertex weights is constant. We also show that the problem is NP-complete when all vertices have unit weights and the maximum degree of T is required to be no more than 3, and even NP-complete when all vertices have unit weight and T is required to be a caterpillar with unbounded hair length and maximum degree at most 3...
Interdisciplinary robotics project for first-year engineering degree students
Directory of Open Access Journals (Sweden)
Mercedes Aznar
2015-06-01
Full Text Available The acquisition of both transversal and specific competences cannot be achieved using conventional methodologies. New methodologies must be applied that promote the necessary competences for proper professional development. Interdisciplinary projects can be a suitable tool for competence-based learning. A priori, this might be complicated, as subjects are traditionally studied at the university level in isolated compartments, with a fragmented structure. Taking advantage of the creation of new degree programs in Mechanical Engineering and Electronic Engineering and Industrial Automation, in the 2010-11 academic year we decided to add an interdisciplinary project (IP to our teaching methodology. The importance of this project lies in the fact that it requires the participation of all the courses in all the academic years in the degree program. The present article explains the methodology used in the interdisciplinary project and how it was implemented in the first year of the Mechanical Engineering and Electronic Engineering and Industrial Automation degree programs. Furthermore, an evaluation is conducted of all four years of the interdisciplinary project, revealing the main problems with its execution and how they have been addressed.
An Analysis of Institutional Characteristics That Contribute to Extended Time to Doctoral Degree
Frasier, Helen Schurke
2013-01-01
Many factors--individual, departmental and institutional--have been associated with longer time to degree and progress toward degree completion. Lengthy time to degree affects the availability of resources, advising, persistence, and degree completion. This research identified institutional characteristics that impacted extended time to degree,…
Effects of Degree on Cooperation in Evolutionary Prisoner's Dilemma Games on Structured Populations
Institute of Scientific and Technical Information of China (English)
DAI Qiong-Lin; CHENG Hong-Yan; LI Hai-Hong; YANG Jun-Zhong
2010-01-01
@@ We focus on the effects of individuals' degrees on spontaneous cooperation.By investigating evolutionary PDGs on random networks with two distinct degrees,we find some resonance-type behaviors of the cooperator frequency with the variation of degree.We also find that increasing hub's degree actually disfavors the cooperation though the heterogeneity in degree can enhance cooperation in the population.
Digital Repository Service at National Institute of Oceanography (India)
KameshRaju, K.A.; Ramprasad, T.; Kodagali, V.N.; Nair, R.R.
A regional scale bathymetric map has been constructed for the 79 degrees E fracture zone (FZ) in the Central Indian Basin between 10 degrees 15'S and 14 degrees 45'S lat. and 78 degrees 55'E and 79 degrees 20'E long. using the high...
Nicholson, Starr; Mulvey, Patrick J.
2012-01-01
The number of astronomy bachelor's conferred in the U.S. continues to climb. The academic year 2010-11 produced more astronomy bachelor's than in any other time in U.S. history. The 408 astronomy bachelor's degrees earned in the class of 2011 more than doubled the class of 2000, and the number of astronomy PhDs conferred (160) is…
Does Degree of Work Task Completion Influence Retrieval Performance?
DEFF Research Database (Denmark)
Ingwersen, Peter; Bogers, Toine; Lykke, Marianne
2010-01-01
their perception of task completion. Also, with the exception of full text records and across all document types, both measured at rank 10, no statistically significant correlation is observed with respect to retrieval performance influenced by degrees of perceived work task completion or individual types......In this contribution we investigate the potential influence between assessors’ perceived completion of their work task at hand and their actual assessment of usefulness of the retrieved information. The results indicate that the number of useful documents found by assessors does not influence...
Directed networks' different link formation mechanisms causing degree distribution distinction
Behfar, Stefan Kambiz; Turkina, Ekaterina; Cohendet, Patrick; Burger-Helmchen, Thierry
2016-11-01
Within undirected networks, scientists have shown much interest in presenting power-law features. For instance, Barabási and Albert (1999) claimed that a common property of many large networks is that vertex connectivity follows scale-free power-law distribution, and in another study Barabási et al. (2002) showed power law evolution in the social network of scientific collaboration. At the same time, Jiang et al. (2011) discussed deviation from power-law distribution; others indicated that size effect (Bagrow et al., 2008), information filtering mechanism (Mossa et al., 2002), and birth and death process (Shi et al., 2005) could account for this deviation. Within directed networks, many authors have considered that outlinks follow a similar mechanism of creation as inlinks' (Faloutsos et al., 1999; Krapivsky et al., 2001; Tanimoto, 2009) with link creation rate being the linear function of node degree, resulting in a power-law shape for both indegree and outdegree distribution. Some other authors have made an assumption that directed networks, such as scientific collaboration or citation, behave as undirected, resulting in a power-law degree distribution accordingly (Barabási et al., 2002). At the same time, we claim (1) Outlinks feature different degree distributions than inlinks; where different link formation mechanisms cause the distribution distinctions, (2) in/outdegree distribution distinction holds for different levels of system decomposition; therefore this distribution distinction is a property of directed networks. First, we emphasize in/outlink formation mechanisms as causal factors for distinction between indegree and outdegree distributions (where this distinction has already been noticed in Barker et al. (2010) and Baxter et al. (2006)) within a sample network of OSS projects as well as Java software corpus as a network. Second, we analyze whether this distribution distinction holds for different levels of system decomposition: open
Ultrasonic attenuation measurements determine onset, degree, and completion of recrystallization
Generazio, E. R.
1988-01-01
Ultrasonic attenuation was measured for cold worked Nickel 200 samples annealed at increasing temperatures. Localized dislocation density variations, crystalline order and volume percent of recrystallized phase were determined over the anneal temperature range using transmission electron microscopy, X-ray diffraction, and metallurgy. The exponent of the frequency dependence of the attenuation was found to be a key variable relating ultrasonic attenuation to the thermal kinetics of the recrystallization process. Identification of this key variable allows for the ultrasonic determination of onset, degree, and completion of recrystallization.
Nonclassical degrees of freedom in the Riemann Hamiltonian.
Srednicki, Mark
2011-09-02
The Hilbert-Pólya conjecture states that the imaginary parts of the zeros of the Riemann zeta function are eigenvalues of a quantum Hamiltonian. If so, conjectures by Katz and Sarnak put this Hamiltonian in the Altland-Zirnbauer universality class C. This implies that the system must have a nonclassical two-valued degree of freedom. In such a system, the dominant primitive periodic orbits contribute to the density of states with a phase factor of -1. This resolves a previously mysterious sign problem with the oscillatory contributions to the density of the Riemann zeros.
Measurement of LINAC 90 degrees head leakage radiation TVL values.
Li, Zuofeng; Mutic, Sasa; Low, Daniel
2006-09-01
One of the key components in modern LINAC room shielding design is the amount of 90 degrees head leakage radiation levels. With the general clinical acceptance of intensity-modulated radiation therapy (IMRT) technique, accurate knowledge of this quantity has become even more important. Measurement of 90 degrees head leakage radiation of medical linear accelerators can be technically challenging due to the low dose rate causing poor signal-to-noise ratios in most detectors. 90 degrees leakage tenth-value layer (TVL) values in concrete have not been reported for the Elekta linear accelerators. This report describes our measurements of 90 degrees leakage TVL values for 6, 10, and 18 MV x-ray beams for an Elekta Precise Treatment System. A large-volume (1000 cm3) unpressurized ionization chamber and a high sensitivity electrometer, together with a separate chamber bias power supply, were used in these measurements in order to maximize the signal-to-noise ratio. A lead enclosure, of minimum thickness 10 cm, was constructed inside the treatment room to house the ion chamber to reduce the influence of room-scattered radiation. A square aperture of 10 X 10 cm2 area was left in the shield and aimed towards the accelerator head. Measurements were performed with the chamber placed at approximately 2 m from the accelerator isocenter. Concrete slabs with individual dimensions of approximately 40 X 40 cm2 cross-sectional area and 5 cm thickness were placed between the accelerator head and the ion chamber for these measurements. The measurements were performed with total concrete thickness of up to 80 cm, so that values up to the third TVL were measured. These measurements showed thatthe first concrete TVL values are 22, 23, and 28 cm (8.6, 9.1, and 10.5 in.) for 6, 10, and 18 MV beams, while the average of the first 3 TVL's were 25, 26, and 29 cm (9.9, 10.2, and 11.5 in.). Measured values agreed to within 10% of previously reported values for Varian linear accelerators for
Degree of conversion and microhardness of dental composite resin materials
Marovic, D.; Panduric, V.; Tarle, Z.; Ristic, M.; Sariri, K.; Demoli, N.; Klaric, E.; Jankovic, B.; Prskalo, K.
2013-07-01
Dental composite resins (CRs) are commonly used materials for the replacement of hard dental tissues. Degree of conversion (DC) of CR measures the amount of the un-polymerized monomers in CR, which can cause adverse biological reactions and weakening of the mechanical properties. In the past, studies have determined the positive correlation of DC values determined by Fourier transform infrared spectroscopy (FT-IR) and microhardness (MH) values. The aim of this study was to establish whether MH can replace FTIR for the determination of DC of contemporary CR.
High-degree Gravity Models from GRAIL Primary Mission Data
Lemoine, Frank G.; Goossens, Sander J.; Sabaka, Terence J.; Nicholas, Joseph B.; Mazarico, Erwan; Rowlands, David D.; Loomis, Bryant D.; Chinn, Douglas S.; Caprette, Douglas S.; Neumann, Gregory A.; Smith, David E.; Zuber, Maria T.
2013-01-01
We have analyzed Ka?band range rate (KBRR) and Deep Space Network (DSN) data from the Gravity Recovery and Interior Laboratory (GRAIL) primary mission (1 March to 29 May 2012) to derive gravity models of the Moon to degree 420, 540, and 660 in spherical harmonics. For these models, GRGM420A, GRGM540A, and GRGM660PRIM, a Kaula constraint was applied only beyond degree 330. Variance?component estimation (VCE) was used to adjust the a priori weights and obtain a calibrated error covariance. The global root?mean?square error in the gravity anomalies computed from the error covariance to 320×320 is 0.77 mGal, compared to 29.0 mGal with the pre?GRAIL model derived with the SELENE mission data, SGM150J, only to 140×140. The global correlations with the Lunar Orbiter Laser Altimeter?derived topography are larger than 0.985 between l = 120 and 330. The free?air gravity anomalies, especially over the lunar farside, display a dramatic increase in detail compared to the pre?GRAIL models (SGM150J and LP150Q) and, through degree 320, are free of the orbit?track?related artifacts present in the earlier models. For GRAIL, we obtain an a posteriori fit to the S?band DSN data of 0.13 mm/s. The a posteriori fits to the KBRR data range from 0.08 to 1.5 micrometers/s for GRGM420A and from 0.03 to 0.06 micrometers/s for GRGM660PRIM. Using the GRAIL data, we obtain solutions for the degree 2 Love numbers, k20=0.024615+/-0.0000914, k21=0.023915+/-0.0000132, and k22=0.024852+/-0.0000167, and a preliminary solution for the k30 Love number of k30=0.00734+/-0.0015, where the Love number error sigmas are those obtained with VCE.
A Virtual Instrument System for Determining Sugar Degree of Honey.
Wu, Qijun; Gong, Xun
2015-01-01
This study established a LabVIEW-based virtual instrument system to measure optical activity through the communication of conventional optical instrument with computer via RS232 port. This system realized the functions for automatic acquisition, real-time display, data processing, results playback, and so forth. Therefore, it improved accuracy of the measurement results by avoiding the artificial operation, cumbersome data processing, and the artificial error in optical activity measurement. The system was applied to the analysis of the batch inspection on the sugar degree of honey. The results obtained were satisfying. Moreover, it showed advantages such as friendly man-machine dialogue, simple operation, and easily expanded functions.
A Virtual Instrument System for Determining Sugar Degree of Honey
Directory of Open Access Journals (Sweden)
Qijun Wu
2015-01-01
Full Text Available This study established a LabVIEW-based virtual instrument system to measure optical activity through the communication of conventional optical instrument with computer via RS232 port. This system realized the functions for automatic acquisition, real-time display, data processing, results playback, and so forth. Therefore, it improved accuracy of the measurement results by avoiding the artificial operation, cumbersome data processing, and the artificial error in optical activity measurement. The system was applied to the analysis of the batch inspection on the sugar degree of honey. The results obtained were satisfying. Moreover, it showed advantages such as friendly man-machine dialogue, simple operation, and easily expanded functions.
Measures of quantum state purity and classical degree of polarization
Gamel, Omar
2013-01-01
There is a well-known mathematical similarity between two-dimensional classical polarization optics and two-level quantum systems, where the Poincare and Bloch spheres are identical mathematical structures. This analogy implies that the classical degree of polarization and quantum purity are in fact the same quantity. We make extensive use of this analogy to analyze various measures of polarization for higher dimensions proposed in the literature, in particular the N = 3 case, illustrating interesting relationships that emerge as well as the advantages of each measure. We also propose a different class of measures of entanglement based on the purity of subsystems.
Improving Scientific Writing in Undergraduate Geosciences Degrees Through Peer Review
Day, E. A.; Collins, G. S.; Craig, L.
2016-12-01
In the British educational system, students specialise early. Often geoscience undergraduates have not taken a class that requires extended writing since they were sixteen years old. This can make it difficult for students to develop the written skills necessary for a geoscience degree, which often has assessments in the form of essays and reports. To improve both the writing and editing skills of our undergraduates we have introduced a peer review system, in which seniors review the work of first year students. At Imperial College London we set written coursework in every year of the degree. Communication is taught and assessed in many courses. There are two major modules with substantial written components that bookend the undergraduate degree at Imperial; the freshmen all write an assessed essay, while all seniors take 'Science Communication', a course that aims to prepare them for a range of possible careers. In the 2015-16 academic year we linked these courses by introducing a modified form of peer marking and instruction. Seniors had to complete reviews of draft first year essays for credit in Science Communication. These reviews are completed for the department 'journal' and introduce the first and fourth years to the nature of peer review. Seniors learn how to critically, but kindly, evaluate the work of other students, and are also prepared for potentially submitting their senior theses to journals. Reviews were managed by volunteer seniors, who acted as associate editors. They allocated anonymous reviewers and wrote decision letters, which were sent to the freshmen before their final assessed essay submission. Ultimately the fourth year reviews were formally assessed and graded by members of staff, as were the revised and resubmitted first year essays. Feedback for both courses has improved since the introduction of student reviews of essays. The markers of the freshman essay have also commented on the improvement in the standard of the writing and a
On the reduction of the degree of linear differential operators
Bobieński, Marcin
2010-01-01
Let L be a linear differential operator with coefficients in some differential field k of characteristic zero with algebraically closed field of constants. Let k^a be the algebraic closure of k. For a solution y, Ly=0, we determine the linear differential operator of minimal degree M and coefficients in k^a, such that My=0. This result is then applied to some Picard-Fuchs equations which appear in the study of perturbations of plane polynomial vector fields of Lotka-Volterra type.
On the Secrecy Degrees of Freedom with Full Duplex Communication
DEFF Research Database (Denmark)
Mahmood, Nurul Huda; Mogensen, Preben Elgaard
2017-01-01
and the delay reduction of full duplex communication are somewhat limited in realistic network settings, leading researchers to study other possible applications of full duplex communication which can provide significantly higher gains over half duplex communication. Physical layer security is an example...... of such an application. The potential of full duplex nodes in improving the physical layer security of a communication link is investigated in this contribution. We specifically derive the information theoretic secrecy degrees of freedom measure for a pair of nodes communicating in full duplex mode. Moreover, closed...
The portfolio in the teaching practice in primary education degree
Directory of Open Access Journals (Sweden)
Ana Mª Rico Martín
2010-10-01
Full Text Available This paper takes as a starting point the description and study of the main characteristics of the portfolio as a tool for learning and formative assessment, to expose the relevance of this technique in the Teaching Practice module in the degree in Primary Education. As an argument for the use of portfolio a proposal for the development, implementation and assessment of it is presented. This proposal will be taken by future teachers during their teaching practice period in Primary education classroom.
The Degrees of Freedom of the Group Lasso
Vaiter, Samuel; Peyré, Gabriel; Fadili, Jalal; Dossal, Charles
2012-01-01
This paper studies the sensitivity to the observations of the block/group Lasso solution to an overdetermined linear regression model. Such a regularization is known to promote sparsity patterns structured as nonoverlapping groups of coefficients. Our main contribution provides a local parameterization of the solution with respect to the observations. As a byproduct, we give an unbiased estimate of the degrees of freedom of the group Lasso. Among other applications of such results, one can choose in a principled and objective way the regularization parameter of the Lasso through model selection criteria.
Sodium reactivity with anthracitic carbons at 700{degree}C
Energy Technology Data Exchange (ETDEWEB)
Sechet, C.; Sarmeo, D.; Mermoux, M.; Touzain, P.; Bonnetain, L.; Dumas, D.; Allard, B.; Paulus, R. [Institut National Polytechnique, Grenoble (France)
1994-12-31
The reaction of sodium with an anthracite sample is studied at 700{degree}C for various sodium relative pressures and is compared to the simple ease of intercalation in a pitch coke. The behaviour of the anthracite samples is similar to that observed with non-graphitizing carbon - intercalation and capillary condensation take place simultaneously. The sodium intercalation is found to be very sensitive to the previous heat treatment temperature of the sample, which determines the extent of order, and perfection of the carbon layers.
Compilation of Abstracts of Theses Submitted By Candidates for Degrees
1990-09-30
AUTHOR(S) Students of the Naval Postgraduate School/Candidates for degrees, 13a TYPE OF REPORT 13b TIME COVERED 14 DATE OF REPORT (Year, Month, Day) T5 ...Ratios Leslie R. Elkin Corrosion Mechanisms and Behavior of a 180 Lieutenant, U.S. Navy P-130X GR/ 6063 Al Composite in Aqueous Environments Kent A...Lieutenant, U.S. Navy P-13OX Graphite Fiber Reinforced 6063 Aluminum Metal Matrix Composite Howard E. Koth The Effects of 1,2,3, and 4 Hz Imposed 186
Energy Technology Data Exchange (ETDEWEB)
Loomis, B.A.; Nowicki, L.J.; Smith, D.L. [Argonne National Lab., Chicago, IL (United States)
1995-04-01
The objective of this research is to determine the effect of heat treatment of cold-worked V-Ti and V-Cr-Ti alloys on their resulting microstructures and to correlate the results with the physical and mechanical properties of these alloys. Annealing of 85% cold-worked unalloyed V and V-(1-18)Ti alloys for 1 hr at 180 to 1200{degree}C results in hardness maxima at 180-250{degree}C, 420-600{degree}C, and 1050-1200{degree}C and in hardness minima at 280-360{degree}C and, depending on Ti concentration in the alloy, at 840-1050{degree}C. Annealing of 85% cold-worked V-(4-15)Cr-(3-6)Ti alloys for 1 hr at 180{degree}C to 1200{degree}C results in harness maxima at 180-250{degree}C, 420-800{degree}C, and 1050-1200{degree}C, and in hardness minima at 280-360{degree}C and 920-1050{degree}C.
Ranking competitors using degree-neutralized random walks.
Shin, Seungkyu; Ahnert, Sebastian E; Park, Juyong
2014-01-01
Competition is ubiquitous in many complex biological, social, and technological systems, playing an integral role in the evolutionary dynamics of the systems. It is often useful to determine the dominance hierarchy or the rankings of the components of the system that compete for survival and success based on the outcomes of the competitions between them. Here we propose a ranking method based on the random walk on the network representing the competitors as nodes and competitions as directed edges with asymmetric weights. We use the edge weights and node degrees to define the gradient on each edge that guides the random walker towards the weaker (or the stronger) node, which enables us to interpret the steady-state occupancy as the measure of the node's weakness (or strength) that is free of unwarranted degree-induced bias. We apply our method to two real-world competition networks and explore the issues of ranking stabilization and prediction accuracy, finding that our method outperforms other methods including the baseline win-loss differential method in sparse networks.
Information Technology and the Dual-Degree Program
Kalia, Rajiv K.
2000-03-01
In recent years, a number of universities have made sweeping changes in science and engineering education at the graduate level by creating new and innovative curricula interfacing the physical, biological, and computer sciences, along with various engineering disciplines. The primary goal of these educational programs is to train a new generation of researchers who are capable of solving challenging science and engineering problems using parallel computers, high-speed networks, and advanced scientific visualization. LSU has established a dual-degree program that allows students to obtain a Ph.D. in the physical sciences and a M.S. from the Department of Computer Science. In support of this educational program, a multidisciplinary high performance computing and communications curriculum has been introduced, and a parallel-computing and three-dimensional, immersive and interactive visualization environment has been created. Dual-degree students also have extensive opportunities to do internships with scientists at government laboratories, universities, and industry in the US, Europe, and Japan.
Measurement of high-degree solar oscillation frequencies
Bachmann, K. T.; Duvall, T. L., Jr.; Harvey, J. W.; Hill, F.
1995-01-01
We present m-averaged solar p- and f-mode oscillation frequencies over the frequency range nu greater than 1.8 and less than 5.0 mHz and the spherical harmonic degree range l greater than or equal to 100 and less than or equal to 1200 from full-disk, 1000 x 1024 pixel, Ca II intensity images collected 1993 June 22-25 with a temporal cadence of 60 s. We itemize the sources and magnitudes of statistical and systematic uncertainties and of small frequency corrections, and we show that our frequencies represent an improvement in accuracy and coverage over previous measurements. Our frequencies agree at the 2 micro Hz level with Mount Wilson frequencies determined for l less than or equal to 600 from full-disk images, and we find systematic offsets of 10-20 micro Hz with respect to frequencies measured from Big Bear and La Palma observations. We give evidence that these latter offsets are indicative of spatial scaling uncertainties associated with the analysis of partial-disk images. In comparison with theory, our p-mode frequencies agree within 10 micro Hz of frequencies predicted by the Los Alamos model but are as much as 100 micro Hz smaller than frequencies predicted by the Denmark and Yale models at degrees near 1000. We also find systematic differences between our n = 0 frequencies and the frequencies closely agreed upon by all three models.
Going to work with an undergraduate physics degree
Sauncy, Toni; Redmond, Kendra; Czujko, Roman
2014-03-01
With an average 40% of all physics baccalaureate degree recipients opting not to enter graduate school, it is imperative that departments build robust programs that prepare students for a broad range of career paths. However, the default focus of many departments is on preparing students for entry into advanced physics degree programs. Based on the statistical evidence and need for attention on students entering the workforce, the American Institute of Physics (AIP) has undertaken an NSF-funded research effort to understand, compile and disseminate effective practices for preparing undergraduate physics students to enter the STEM workforce upon graduation. The project entailed site visits to eight schools with strong records of students entering STEM fields, in order to discern effective practices in recruitment and preparation of students for those opportunities. We have developed targeted information to engage the students themselves, the faculty advisors, mentors and career professionals who have direct contact with the students, and the administrative ``decision-makers.'' Each of these groups requires information that addresses their particular roles in the collaborative process that will lead to not only an increase in the numbers of students who enter the STEM workforce, but in the quality preparation of those students. The tools for each of these groups will be discussed, with special emphasis on a set of career tools for students and their mentors. This project is funded by NSF Grant #1011829.
Medical students’ approaches to learning over a full degree programme
Directory of Open Access Journals (Sweden)
William A. Reid
2012-08-01
Full Text Available Students take three approaches to learning and studying: deep, surface and strategic, influenced by the learning environment. Following the General Medical Council's report "Tomorrow's Doctors," a deep approach was cultivated in Years 1 and 2 of a university undergraduate medical programme by introducing explicit written learning objectives constructed according to Biggs' SOLO taxonomy, problem-based learning and constructively aligned in-course assignments and examinations. The effect of these changes was measured with the Approaches to Study Skills Inventory for Students (ASSIST. Scores were highest for a deep approach and lowest for a surface approach and showed relatively little change during the degree programme, apart from a slight fall in the scores for a surface approach, particularly for students undertaking an intercalated science degree. Possible explanations include: students' approaches may be established prior to university entry; deep scores were already high at the beginning of the programme and may be difficult to increase further; the changes in learning environment may not be strong enough to alter approaches which students perceive as having been successful.
Multifocal atherosclerosis in patient after acute first degree radiation sickness.
Directory of Open Access Journals (Sweden)
Metlyaeva N.A.
2014-12-01
Full Text Available Purpose: assessment the heavy psychosomatic and all-somatic cardiovascular and cerebrovascular pathology of patient, transferred an acute I degree radiation sickness, from the general evenly gamma-beta radiation. Conclusions. The subdepressive and disturbing-depressive syndrome of patient, transferred an acute radiation sickness (ARS of I degree, from the general evenly gamma-beta radiation, was independent risk factor of development of multifocal atherosclerosis; Features of development of all-somatic and psychosomatic pathology of patient are based on a combination of genetic prerequisites, environment influences (the stress caused by accident on the ChNPP and social factors, influencing on him during a course of life, especially during early socialization. Thus at development of psychosomatic frustration the combination of feature of the mental reaction connected with the personal characteristic and special relationship between mental (stress and physiological (somatic by aspects of reaction which led to metabolism violation, to aging, decrease in adaptation opportunities of an organism and development age — dependent pathology took place.
Degree mixing in multilayer networks impedes the evolution of cooperation.
Wang, Zhen; Wang, Lin; Perc, Matjaž
2014-05-01
Traditionally, the evolution of cooperation has been studied on single, isolated networks. Yet a player, especially in human societies, will typically be a member of many different networks, and those networks will play different roles in the evolutionary process. Multilayer networks are therefore rapidly gaining on popularity as the more apt description of a networked society. With this motivation, we here consider two-layer scale-free networks with all possible combinations of degree mixing, wherein one network layer is used for the accumulation of payoffs and the other is used for strategy updating. We find that breaking the symmetry through assortative mixing in one layer and/or disassortative mixing in the other layer, as well as preserving the symmetry by means of assortative mixing in both layers, impedes the evolution of cooperation. We use degree-dependent distributions of strategies and cluster-size analysis to explain these results, which highlight the importance of hubs and the preservation of symmetry between multilayer networks for the successful resolution of social dilemmas.
A degree in bioethics: an "introspective" analysis from Pakistan.
Jafarey, Aamir M
2014-04-01
The success of degree-level bioethics programmes, a recent development across the world, is generally evaluated on the basis of their quantifiable impact; for instance, the number of publications graduates produce. The author conducted a study of Pakistani graduates who had pursued a higher qualification in bioethics, and on the basis of the respondents' written and verbal narratives, this paper presents an analysis of their perceptions of the internal impact of bioethics degree programmes. Using these narratives, the paper also analyses the reactions of their colleagues to their new qualification.The respondents reported significant changes in their thinking and actions following their education in bioethics. They exhibited more empathy towards their patients and research subjects, and became better "listeners~ They also reported changes in practices,the most significant being the discontinuation of the linkages they had established with pharmaceutical firms to seek support,because of concerns related to conflict of interest. Although some respondents believed that their new qualification was generally welcomed by their colleagues, who considered them aesthetics resources, others reported that their colleagues harboured unreasonable and impractical expectations from them, and that these were impossible to fulfil. They also got the feeling of being ostracized and regarded as "ethics watchdogs~ Whereas the internalisation of bioethics is an encouraging finding in this cohort, the mixed reception that bioethics and those involved in it received indicates a Jack of understanding of the field and is a source of concern.
The 2-degree Field Lensing Survey: design and clustering measurements
Blake, Chris; Childress, Michael; Erben, Thomas; Glazebrook, Karl; Harnois-Deraps, Joachim; Heymans, Catherine; Hildebrandt, Hendrik; Hinton, Samuel R; Janssens, Steven; Johnson, Andrew; Joudaki, Shahab; Klaes, Dominik; Kuijken, Konrad; Lidman, Chris; Marin, Felipe A; Parkinson, David; Poole, Gregory B; Wolf, Christian
2016-01-01
We present the 2-degree Field Lensing Survey (2dFLenS), a new galaxy redshift survey performed at the Anglo-Australian Telescope. 2dFLenS is the first wide-area spectroscopic survey specifically targeting the area mapped by deep-imaging gravitational lensing fields, in this case the Kilo-Degree Survey. 2dFLenS obtained 70,079 redshifts in the range z < 0.9 over an area of 731 sq deg, and is designed to extend the datasets available for testing gravitational physics and promote the development of relevant algorithms for joint imaging and spectroscopic analysis. The redshift sample consists first of 40,531 Luminous Red Galaxies (LRGs), which enable analyses of galaxy-galaxy lensing, redshift-space distortion, and the overlapping source redshift distribution by cross-correlation. An additional 28,269 redshifts form a magnitude-limited (r < 19.5) nearly-complete sub-sample, allowing direct source classification and photometric-redshift calibration. In this paper, we describe the motivation, target selection...
On the commutativity degree in finite Moufang loops
Directory of Open Access Journals (Sweden)
Karim Ahmadidelir
2016-09-01
Full Text Available The textit{commutativity degree}, $Pr(G$, of a finite group $G$ (i.e. the probability that two (randomly chosen elements of $G$ commute with respect to its operation has been studied well by many authors. It is well-known that the best upper bound for $Pr(G$ is $frac{5}{8}$ for a finite non--abelian group $G$.In this paper, we will define the same concept for a finite non--abelian textit{Moufang loop} $M$ and try to give a best upper bound for $Pr(M$. We will prove that for a well-known class of finite Moufang loops, named textit{Chein loops}, and its modifications, this best upper bound is $frac{23}{32}$. So, our conjecture is that for any finite Moufang loop $M$, $Pr(Mleq frac{23}{32}$.Also, we will obtain some results related to the $Pr(M$ and ask the similar questions raised and answered in group theory about the relations between the structure of a finite group and its commutativity degree in finite Moufang loops.
Scales of degree of facial paralysis: analysis of agreement
Directory of Open Access Journals (Sweden)
Kércia Melo de Oliveira Fonseca
2015-06-01
Full Text Available INTRODUCTION: It has become common to use scales to measure the degree of involvement of facial paralysis in phonoaudiological clinics. OBJECTIVE: To analyze the inter- and intra-rater agreement of the scales of degree of facial paralysis and to elicit point of view of the appraisers regarding their use. METHODS: Cross-sectional observational clinical study of the Chevalier and House & Brackmann scales performed by five speech therapists with clinical experience, who analyzed the facial expression of 30 adult subjects with impaired facial movements two times, with a one week interval between evaluations. The kappa analysis was employed. RESULTS: There was excellent inter-rater agreement for both scales (kappa > 0.80, and on the Chevalier scale a substantial intra-rater agreement in the first assessment (kappa = 0.792 and an excellent agreement in the second assessment (kappa = 0.928. The House & Brackmann scale showed excellent agreement at both assessments (kappa = 0.850 and 0.857. As for the appraisers' point of view, one appraiser thought prior training is necessary for the Chevalier scale and, four appraisers felt that training is important for the House & Brackmann scale. CONCLUSION: Both scales have good inter- and intra-rater agreement and most of the appraisers agree on the ease and relevance of the application of these scales.
Gravitational Lensing Analysis of the Kilo Degree Survey
Kuijken, Konrad; Hildebrandt, Hendrik; Nakajima, Reiko; Erben, Thomas; de Jong, Jelte T A; Viola, Massimo; Choi, Ami; Hoekstra, Henk; Miller, Lance; van Uitert, Edo; Amon, Alexandra; Blake, Chris; Brouwer, Margot; Buddendiek, Axel; Conti, Ian Fenech; Eriksen, Martin; Grado, Aniello; Harnois-Déraps, Joachim; Helmich, Ewout; Herbonnet, Ricardo; Irisarri, Nancy; Kitching, Thomas; Klaes, Dominik; Labarbera, Francesco; Napolitano, Nicola; Radovich, Mario; Schneider, Peter; Sifón, Cristóbal; Sikkema, Gert; Simon, Patrick; Tudorica, Alexandru; Valentijn, Edwin; Kleijn, Gijs Verdoes; van Waerbeke, Ludovic
2015-01-01
The Kilo-Degree Survey (KiDS) is a multi-band imaging survey designed for cosmological studies from weak lensing and photometric redshifts. It uses the ESO VLT Survey Telescope with its wide-field camera OmegaCAM. KiDS images are taken in four filters similar to the SDSS ugri bands. The best-seeing time is reserved for deep r-band observations that reach a median 5-sigma limiting AB magnitude of 24.9 with a median seeing that is better than 0.7arcsec. Initial KiDS observations have concentrated on the GAMA regions near the celestial equator, where extensive, highly complete redshift catalogues are available. A total of 101 survey tiles, one square degree each, form the basis of the first set of lensing analyses, which focus on measurements of halo properties of GAMA galaxies. 9 galaxies per square arcminute enter the lensing analysis, for an effective inverse shear variance of 69 per square arcminute. Accounting for the shape measurement weight, the median redshift of the sources is 0.53. KiDS data processing...
Ranking Competitors Using Degree-Neutralized Random Walks
Shin, Seungkyu; Park, Juyong
2016-01-01
Competition is ubiquitous in many complex biological, social, and technological systems, playing an integral role in the evolutionary dynamics of the systems. It is often useful to determine the dominance hierarchy or the rankings of the components of the system that compete for survival and success based on the outcomes of the competitions between them. Here we propose a ranking method based on the random walk on the network representing the competitors as nodes and competitions as directed edges with asymmetric weights. We use the edge weights and node degrees to define the gradient on each edge that guides the random walker towards the weaker (or the stronger) node, which enables us to interpret the steady-state occupancy as the measure of the node's weakness (or strength) that is free of unwarranted degree-induced bias. We apply our method to two real-world competition networks and explore the issues of ranking stabilization and prediction accuracy, finding that our method outperforms other methods includ...
Conserved charges, surface degrees of freedom, and black hole entropy
Seraj, Ali
2016-01-01
In this thesis, we study the Hamiltonian and covariant phase space description of gravitational theories. The phase space represents the allowed field configurations and is accompanied by a closed nondegenerate 2 form- the symplectic form. We will show that local/gauge symmetries of the action fall into two different categories in the phase space formulation. Those corresponding to constraints in the phase space, and those associated with nontrivial conserved charges. We argue that while the former is related to redundant gauge degrees of freedom, the latter leads to physically distinct states of the system, known as surface degrees of freedom and can induce a lower dimensional dynamics on the system. These ideas are then implemented to build the phase space of specific gravitational systems: 1) asymptotically AdS3 spacetimes, and 2) near horizon geometries of extremal black holes (NHEG) in arbitrary dimension. In the AdS3 phase space, we show that Brown-Henneaux asymptotic symmetries can be extended inside t...
DDOTI: the deca-degree optical transient imager
Watson, Alan M; Troja, Eleonora; Román-Zúñiga, Carlos G; Butler, Nathaniel R; Kutyrev, Alexander S; Gehrels, Neil A; Ángeles, Fernando; Basa, Stéphane; Blanc, Pierre-Eric; Boër, Michel; de Diego, Jose A; Farah, Alejandro S; Figueroa, Liliana; Chew, Yilen Gómez Maqueo; Klotz, Alain; Quirós, Fernando; Reyes-Ruíz, Maurico; Ruíz-Diáz-Soto, Jaime; Thierry, Pierre; Tinoco, Silvio
2016-01-01
DDOTI will be a wide-field robotic imager consisting of six 28-cm telescopes with prime focus CCDs mounted on a common equatorial mount. Each telescope will have a field of view of 12 square degrees, will have 2 arcsec pixels, and will reach a 10-sigma limiting magnitude in 60 seconds of r = 18.7 in dark time and r = 18.0 in bright time. The set of six will provide an instantaneous field of view of about 72 square degrees. DDOTI uses commercial components almost entirely. The first DDOTI will be installed at the Observatorio Astron\\'omico Nacional in Sierra San Pedro Mart\\'ir, Baja California, M\\'exico in early 2017. The main science goals of DDOTI are the localization of the optical transients associated with GRBs detected by the GBM instrument on the Fermi satellite and with gravitational-wave transients. DDOTI will also be used for studies of AGN and YSO variability and to determine the occurrence of hot Jupiters. The principal advantage of DDOTI compared to other similar projects is cost: a single DDOTI i...
Monitoring the degree of implementation of an integrated delivery system
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Réjean Hébert
2004-09-01
Full Text Available Introduction: The aim of the study was to develop a method to measure the implementation of specific components of an Integrated Service Delivery system for the frail elderly. The system includes six mechanisms and tools: (1 coordination of all organizations involved in delivering health and social services, (2 a single entry point, (3 case management, (4 a single assessment tool with a case-mix classification system, (5 an individualized service plan, and (6 a computerized clinical chart. Method: Focus groups of researchers, clinicians, managers and policy-makers identified quantitative indicators for each component. The six components were weighted according to their relative importance in order to generate a total score. Data were collected every six months over 30 months to establish the implementation degree in the three experimental areas: Sherbrooke, Granit and Coaticook in the Province of Quebec, Canada. Results: After 30 months, coordination is the most developed component in the three experimental areas. Overall, in July 2003, the Integrated Service Delivery system was implemented at the rate of 73%, 71% and 70% in Sherbrooke, Granit and Coaticook, respectively. Discussion: This type of quantitative assessment provides data for managers and researchers to monitor the implementation. Moreover, when there is an outcome study, the results of the outcome study can be correlated with the degree of implementation, thus allowing for dose-response analyzes and helping to decrease the “black box” effect.
Silanization-Based Zeolite Crystallization: Participation Degree and Pathway.
Yan, Yueer; Azhati, Arepati; Guo, Xiao; Zhang, Yahong; Tang, Yi
2015-08-17
A clear and deep understanding of zeolite crystallization with the addition of organosilane is desirable for the reasonable design and preparation of hierarchical zeolites. Herein, the effects of different organosilanes on zeolite crystallization were systematically studied. It was found that organosilane plays the role of an inhibitor in the silanization-based zeolite preparation, and this inhibition effect was determined by its participation degree. An organosilane with a high participation degree can result in the prolongation of nucleation and growth periods of zeolite as well as the variation of product properties. More importantly, a dynamic participation pathway of organosilane is proposed, that is, the growth of zeolite is accompanied by the continuous removal of organosilane, leading to an increase of product crystallinity as well as the decrease of mesoporosity. This study gives a new insight into the role that organosilane plays in zeolite crystallization, which will help to direct the rational selection of organosilane and design of crystallization condition for the optimal synthesis of hierarchical zeolites.
Self-locking degree-4 vertex origami structures
Fang, Hongbin; Li, Suyi; Wang, K. W.
2016-11-01
A generic degree-4 vertex (4-vertex) origami possesses one continuous degree-of-freedom for rigid folding, and this folding process can be stopped when two of its facets bind together. Such facet-binding will induce self-locking so that the overall structure stays at a pre-specified configuration without additional locking elements or actuators. Self-locking offers many promising properties, such as programmable deformation ranges and piecewise stiffness jumps, that could significantly advance many adaptive structural systems. However, despite its excellent potential, the origami self-locking features have not been well studied, understood, and used. To advance the state of the art, this research conducts a comprehensive investigation on the principles of achieving and harnessing self-locking in 4-vertex origami structures. Especially, for the first time, this study expands the 4-vertex structure construction from single-component to dual-component designs and investigates their self-locking behaviours. By exploiting various tessellation designs, this research discovers that the dual-component designs offer the origami structures with extraordinary attributes that the single-component structures do not have, which include the existence of flat-folded locking planes, programmable locking points and deformability. Finally, proof-of-concept experiments investigate how self-locking can effectively induce piecewise stiffness jumps. The results of this research provide new scientific knowledge and a systematic framework for the design, analysis and utilization of self-locking origami structures for many potential engineering applications.
A laboratory of polarization in a Master degree of photonics
Campos, J.; Lizana, A.; Lopez, O.; Yzuel, M. J.
2009-06-01
Polarimetric techniques are widespread employed in many research fields as optics, medicine or biology. In this sense, the use of polarimeters has significantly increased, being a tool with huge perspectives of future. As a consequence, the spreading of the basic knowledge of this topic becomes interesting for many professionals and a master studies is an excellent environment to this aim. We are participating in a mandatory laboratory subject (Laboratory of Optics, LO) of a Master degree in Photonics with an experiment on polarization. In particular, the main structure of the experiment has been built around of a polarimeter set-up. Basically, we use a He-Ne laser beam, a polarization state generator and a polarization state detector. The experimental measurements are acquired by means of a photometer connected to a computer and processed by an own developed software. It allows us to obtain a complete description of any polarizing element tested. In combination with the laboratory work, it is provided a mathematical description of the polarization theory, the Stokes-Mueller formalism, which gives us the base required for a fully understand of the experiment. Throughout this work, we explain the polarimeter experiment structure and the achievements reached by students. We want to emphasize that a different degree of expertise and knowledge in function of the specific background of every student is provided. However, a minimum knowledge level is reached for all students, including among others, the improvement in the scientific, communicative or interdisciplinary competences.
Ranking competitors using degree-neutralized random walks.
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Seungkyu Shin
Full Text Available Competition is ubiquitous in many complex biological, social, and technological systems, playing an integral role in the evolutionary dynamics of the systems. It is often useful to determine the dominance hierarchy or the rankings of the components of the system that compete for survival and success based on the outcomes of the competitions between them. Here we propose a ranking method based on the random walk on the network representing the competitors as nodes and competitions as directed edges with asymmetric weights. We use the edge weights and node degrees to define the gradient on each edge that guides the random walker towards the weaker (or the stronger node, which enables us to interpret the steady-state occupancy as the measure of the node's weakness (or strength that is free of unwarranted degree-induced bias. We apply our method to two real-world competition networks and explore the issues of ranking stabilization and prediction accuracy, finding that our method outperforms other methods including the baseline win-loss differential method in sparse networks.
Degree of internationalization in logistics sector and strategic orientations
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Inci Polat
2013-06-01
Full Text Available Backround: Turkey has an important transfer center among Middle East, Europe and Asia. Turkey intends to reach $ 500 billion export target in 2023. Turkish logistics sector has been rapidly grown. Both national and international companies invest their presence and service in the country. The study firstly aims to evaluate the degree of internationalization of firms in the Turkish logistics sector. The second aim of the study is to determine whether or not there is difference between international and national logistics firms' market and entrepreneurship orientation. Finally, the study is to investigate the links among market orientation, entrepreneurship orientation, and the degree of internationalization. Material and methods: The convenience sampling method was used to send the questionnaires. A total of 91 eligible questionnaires were received. The research hypotheses are tested using data collected from questionnaire and by multiple regression analyses and independent-sample t test. Results and conclusions: The results indicate evidences that there is a difference between the levels of strategic orientation of the international and national firms. From research findings, we offer implications for managers.
Unified phase variables of relative degree two for human locomotion.
Villarreal, Dario J; Gregg, Robert D; Villarreal, Dario J; Gregg, Robert D; Gregg, Robert D; Villarreal, Dario J
2016-08-01
A starting point to achieve stable locomotion is synchronizing the leg joint kinematics during the gait cycle. Some biped robots parameterize a nonlinear controller (e.g., input-output feedback linearization) whose main objective is to track specific kinematic trajectories as a function of a single mechanical variable (i.e., a phase variable) in order to allow the robot to walk. A phase variable capable of parameterizing the entire gait cycle, the hip phase angle, has been used to control wearable robots and was recently shown to provide a robust representation of the phase of human gait. However, this unified phase variable relies on hip velocity, which is difficult to measure in real-time and prevents the use of derivative corrections in phase-based controllers for wearable robots. One derivative of this phase variable yields accelerations (i.e., the equations of motion), so the system is said to be relative degree-one. This means that there are states of the system that cannot be controlled. The goal of this paper is to offer relative degree-two alternatives to the hip phase angle and examine their robustness for parameterizing human gait.
Sodium corrosion of alloy 718 at 649 degrees C
Energy Technology Data Exchange (ETDEWEB)
Cowgill, M.G.
1984-09-01
The effects of exposure of Alloy 718 to flowing sodium at 649{degree}C have been studied for times ranging from 4000 h to 20,000 h. Data are reported for metal loss, chemical composition changes, depth of intergranular attack and microhardness changes. Relationships have been developed to describe the dependence of corrosion rate on temperature and sample location (the downstream effect), and the variation of intergranular attack depth with exposure time. The surface topography of exposed samples was observed to vary with sample location, a fact which was attributed to changes in the dissolution potentials for the constituent elements. The corrosive attack was found to be non-uniform and subsurface porosity, associated with the intergranular attack, was detected after the longer exposure periods. Ferritic phase formation was noted both on the surface and internally. The microhardness data indicated that the material started to over-age at or just before 4000 h at 649{degree}C. 11 refs., 34 figs., 13 tabs.
The Outcome of 270-Degree Selective Laser Trabeculoplasty
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Pasi Tapio Pehkonen
2012-01-01
Full Text Available Purpose. To evaluate the reduction of intraocular pressure (IOP by a single-session 270° selective laser trabeculoplasty (SLT in pseudoexfoliation glaucoma (PXFG and primary open angle glaucoma (POAG patients. Methods. A successful outcome was defined as an IOP reduction ≥20% from baseline with no further need for laser or incisional surgery. The preoperative pharmaceuticals were maintained unchanged throughout the course of the study. 70–80 nonoverlapping pulses were distributed around 270° in the trabecular band. Results. Sixty-six eyes of 42 patients with PXFG (30 eyes or POAG (36 eyes met the inclusion criteria. The mean ± standard deviation preoperative IOP was 23.7±4.5 mmHg and at the end of the followup was 19.0±4.5 mmHg with a pressure drop of 4.7±3.1 mmHg (20% (P<0.001, 95% confidence interval 3.94–5.46. The cumulative probability of success was 39% (26 of 66 eyes after 6 months of followup. Statistically significant differences in success rates were observed between the PXFG and POAG groups (27% versus 50%; P=0.025. Postoperative inflammatory reaction was scanty. Conclusions. 270-degree SLT is useful in lowering IOP in PXFG and POAG, but the average reduction of IOP seems to be within the same range as reported with 180-degree SLT previously.
IDENTIFICATION OF DIGITAL COMPETENCES SKILLS IN TEACHER TRAINING DEGREE STUDENTS
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Margarita Pino Juste
2010-11-01
Full Text Available The Technologies of Information and Communication (ICT become in the information society a change agent. In this context, ICTs should become teaching tools in order to help the teacher to achieve quality education.Being aware of the importance of the teachers' mastery of the digital skills, we have conducted a study about the mastery of the ICTs that the students in the third year of the degree of teacher training of the University of Vigo have. In order to do this we have taken into account the knowledge acquired, the frequency of use of certain tools, their level of proficiency in four areas of knowledge: technological literacy, intellectual working tools, processing and dissemination of information and as communication tools. As well as their motivations, interests and obstacles found in their development in order to develop proposals for initial training.We can conclude that, in general, students do not have a specific training on the use of computers. About the degree of knowledge in the different skills, the students know the most basic and commonly used (open or download a file, create or print a document, install a program or send an e-mail. They usually use the mail as a working tool, while the messaging and social networks are more used for leisure time.Their attitudes towards ICTs are very positive and their motivations are focused essentially on the technologies which are useful for improving their learning and for their professional future.
Degree-strength correlation reveals anomalous trading behavior.
Sun, Xiao-Qian; Shen, Hua-Wei; Cheng, Xue-Qi; Wang, Zhao-Yang
2012-01-01
Manipulation is an important issue for both developed and emerging stock markets. Many efforts have been made to detect manipulation in stock markets. However, it is still an open problem to identify the fraudulent traders, especially when they collude with each other. In this paper, we focus on the problem of identifying the anomalous traders using the transaction data of eight manipulated stocks and forty-four non-manipulated stocks during a one-year period. By analyzing the trading networks of stocks, we find that the trading networks of manipulated stocks exhibit significantly higher degree-strength correlation than the trading networks of non-manipulated stocks and the randomized trading networks. We further propose a method to detect anomalous traders of manipulated stocks based on statistical significance analysis of degree-strength correlation. Experimental results demonstrate that our method is effective at distinguishing the manipulated stocks from non-manipulated ones. Our method outperforms the traditional weight-threshold method at identifying the anomalous traders in manipulated stocks. More importantly, our method is difficult to be fooled by colluded traders.
DEFF Research Database (Denmark)
Hansen, Lise Stengaard; Jensen, Karl-Martin Vagn
1998-01-01
The combinations of exposure times and temperatures (45 degrees to 54 degrees C.) without addition of moisture necessary to obtain 100 per cent mortality were determined on all stages of commn furniture beetle, Anobium punctatum. Lethal combinations vary from minutes at 46 degrees to 5 minutes...
Mulvey, Patrick; Shindel, Brandon
2011-01-01
Each fall the Statistical Research Center conducts its Survey of Enrollments and Degrees, which asks all degree-granting physics and astronomy departments in the US to provide information concerning the numbers of students they have enrolled and counts of recent degree recipients. In connection with this survey, the authors ask for the names and…
Pold, Jack; Mulvey, Patrick
2015-01-01
Each fall the Statistical Research Center (SRC) conducts its Survey of Enrollments and Degrees, which asks all degree-granting physics and astronomy departments in the US to provide information concerning the numbers of students they have enrolled and counts of recent degree recipients. In connection with this survey, SRC asks for the names and…
Mulvey, Patrick; Pold, Jack; Tesfaye, Casey
2014-01-01
Each fall the American Institute of Physics (AIP) Statistical Research Center conducts its Survey of Enrollments and Degrees, which asks all degree-granting physics and astronomy departments in the U.S. to provide information concerning the number of students they have enrolled and the counts of recent degree recipients. In connection with this…
Assessment of the degree of satisfaction among living kidney donors.
Oliveira, B; Mascarenhas, C; Cardoso, G; Sá, J; Casal, M
2011-01-01
Organ donation during life is an act of great altruism, with unique family, social, economic, and psychological impacts. The group of anesthesiologists involved in this program sought to assess the degree of satisfaction among kidney donors between 2007 and 2008 and, in particular, with the anesthetic approach. A telephone survey of kidney donors in 2007 and 2008 complemented a retrospective evaluation of the records of the Acute Pain Unit. Among 32 kidney donors, 2 were excluded as impossible to contact. Their mean age was 44.33 years including 60% women. The degree of relationship was fathers (43.3%), siblings (50%) or spouses (6.7%). Donors who underwent outpatient anesthesia were satisfied (40%) or very satisfied (60%) with the information received, all willing to repeat the experience of kidney donation. The positive aspects were: good reception (83.4%), help to a family member (30%), good information (13.3%), and confidence in the team (6.6%). No downside was mentioned by 50% of donors. Postoperative analgesia was performed using an epidural catheter (93.3%) or patient-controlled analgesia with morphine (6.7%) associated with intravenous paracetamol in all cases. With regard to analgesia using an epidural catheter, the mean total dose of morphine was 7.7 mg and 27.4 mg for 0.2% ropivacaine over an average of 3.32 days. Pain was assessed in the first 24 hours postoperatively using a scale ranging from 0 (no pain) to 4 (unbearable pain): 30% reported 0; 60% 1; and 10% 2. The complaints were pruritus (40%), nausea/vomiting (16.7%), constipation (6.7%) and/or urinary retention (3.3%). No donor showed an altered state of consciousness, motor block, or paresthesias. Living kidney donors showed a high degree of overall satisfaction. The anesthesia consultation was extremely helpful with a positive impact on kidney donation. An epidural catheter for analgesia after surgery proved to be effective and appropriate for this type of procedure. Copyright © 2011 Elsevier
Frequencies and amplitudes of high-degree solar oscillations
Kaufman, James Morris
Measurements of some of the properties of high-degree solar p- and f-mode oscillations are presented. Using high-resolution velocity images from Big Bear Solar Observatory, we have measured mode frequencies, which provide information about the composition and internal structure of the Sun, and mode velocity amplitudes (corrected for the effects of atmospheric seeing), which tell us about the oscillation excitation and damping mechanisms. We present a new and more accurate table of the Sun's acoustic vibration frequencies, nunl, as a function of radial order n and spherical harmonic degree l. These frequencies are averages over azimuthal order m and approximate the normal mode frequencies of a nonrotating spherically symmetric Sun near solar minimum. The frequencies presented here are for solar p- and f-modes with 180 less than or = l less than or = 1920, 0 less than or = n less than or = 8, and 1.7 mHz less than or = nunl less than or = 5.3 mHz. The uncertainties, sigmanl, in the frequencies areas are as low as 3.1 micro-Hz. The theoretically expected f-mode frequencies are given by omega squared = gkh approx. = gl/R, where g is the gravitational acceleration at the surface, kh is the horizontal component of the wave vector, and R is the radius of the Sun. We find that the observed frequencies are significantly less than expected for l greater than 1000, for which we have no explanation. Observations of high-degree oscillations, which have very small spatial features, suffer from the effects of atmospheric image blurring and image motion (or 'seeing'), thereby reducing the amplitudes of their spatial-frequency components. In an attempt to correct the velocity amplitudes for these effects, we simultaneously measured the atmospheric modulation transfer function (MTF) by looking at the effects of seeing on the solar limb. We are able to correct the velocity amplitudes using the MTF out to l approx. = 1200. We find that the frequency of the peak velocity power (as a
Venemans, B P; Mwebaze, J; Valentijn, E A; Bañados, E; Decarli, R; de Jong, J T A; Findlay, J R; Kuijken, K H; La Barbera, F; McFarland, J P; McMahon, R G; Napolitano, N; Sikkema, G; Sutherland, W J
2015-01-01
We present the results of our first year of quasar search in the on-going ESO public Kilo Degree Survey (KiDS) and VISTA Kilo-Degree Infrared Galaxy (VIKING) surveys. These surveys go up to 2 magnitudes fainter than other wide-field imaging surveys that uncovered predominantly very luminous quasars at z~6. This allows us to probe a more common, fainter population of z~6 quasars. From this first set of combined survey catalogues covering ~250 deg^2 we selected point sources down to Z_AB=22 that had a very red i-Z (i-Z>2.2) colour. After follow-up imaging and spectroscopy, we discovered four new quasars in the redshift range 5.8
Using fuzzy data mining to diagnose patients' degrees of melancholia
Huang, Yo-Ping; Kuo, Wen-Lin
2011-06-01
The common treatments of melancholia are psychotherapy and taking medicines. The psychotherapy treatment which this study focuses on is limited by time and location. It is easier for psychiatrists to grasp information from clinical manifestation but it is difficult for psychiatrists to collect information from patients' daily conversations or emotion. To design a system which psychiatrists enable to capture patients' daily symptoms will show great help in the treatment. This study proposes to use fuzzy data mining algorithm to find association rules among keywords segmented from patients' daily voice/text messages to assist psychiatrists extract useful information before outpatient service. Patients of melancholia can use devices such as mobile phones or computers to record their own emotion anytime and anywhere and then uploading the recorded files to the back-end server for further analysis. The analytical results can be used for psychiatrists to diagnose patients' degrees of melancholia. Experimental results will be given to verify the effectiveness of the proposed methodology.
Fuzzy Control for Food Agricultural Robotics of a Degree
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Lepeng Song
2014-02-01
Full Text Available In this study, we have a research of the fuzzy control for food agricultural robotics of a degree. Weeding robots can replace humans weeding activities, since the control system with nonlinear, robustness and a series of complex time-varying characteristics of the traditional PID control of the food agricultural robot end of the operation control effect cannot achieve the desired results, therefore, the design for the traditional use of classical PID control algorithm to control the food agricultural robot end of the operation of a series of drawbacks, combining cutting-edge control theory, fuzzy rule-based adaptive PID control strategy to control the entire system, so as to achieve the desired control effect. Experimental results show that the fuzzy adaptive PID control method for robot end postural control has better adaptability and track-ability.
On degree sums of a triangle-free graph
DEFF Research Database (Denmark)
Brandt, Stephan; Harant, J.; Naumann, S.
2014-01-01
For a simple triangle-free k-chromatic graph G with k >= 2 the upper bound m(n-f (k-2)) on the sum Sigma(2)(G) = Sigma(x is an element of V(G))d(2)(x) of the squares of the degrees of G is proved, where n, m, and f(1) are the order of G, the size of G, and the minimum order of a triangle-free l-c......-chromatic graph, respectively. Consequences of this bound are discussed. Moreover, we generalize the upper bound on Ep (G) = Sigma(p)(G) = Sigma(x is an element of V(G))d(x)) for p = 2 to P >= 3. (C) 2014 Elsevier B.V. All rights reserved....
Degree two approximate Boolean #CSPs with variable weights
McQuillan, Colin
2012-01-01
A counting constraint satisfaction problem (#CSP) asks for the number of ways to satisfy a given list of constraints, drawn from a fixed constraint language \\Gamma. We study how hard it is to evaluate this number approximately. There is an interesting partial classification, due to Dyer, Goldberg, Jalsenius and Richerby, of Boolean constraint languages when the degree of instances is bounded by d>=3 - every variable appears in at most d constraints - under the assumption that "pinning" is allowed as part of the instance. We study the d=2 case under the stronger assumption that "variable weights" are allowed as part of the instance. We give a dichotomy: in each case, either the #CSP is tractable, or one of two important open problems, #BIS or #PM, reduces to the #CSP.
The degree of community engagement: empirical research in Baltimore City
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Soyoung PARK
2014-12-01
Full Text Available The purpose of this study is to investigate influential factors that affect the levels of community engagement. Factors include community-level characteristics as well as demographic features of individuals in the community of Baltimore City. The study examines various community factors that affect the level of community engagement in the urban area, such as the level of homeownership, socioeconomic factors such as income and education, and demographic factors such as race, age, and sex. Findings from the study indicate that various factors from the social-cum-ethnic stratification influence the degree of community engagement in this urban area. Specifically, communities with high income levels and high levels of homeownership are more likely to induce residents to participate in their community. With regard to demographic factors, African-Americans and persons over the age of 65 years old are more willing to engage in community activities.
Constitutionality Degree of Indonesia Local Regulation in Political Law Perspective
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Bambang Sutrisno
2016-06-01
Full Text Available The Politics of Law holds responsibility to give the surety of all regulations, including Local Regulation, for capable of reflecting the collective will of the public as the owner of the highest sovereignty. Politics of law is always working to bring together the ius constituendum and ius constitutum at the encounter between realism and idealism. Local Regulation as subsystems of national law, is expected to serve as a guiding instrument and guard direction for development and continuous improvement of Local Government. Therefore the existence of local regulations holds a strategic role for legal certainty, which is a necessary to create a conducive business climate and stability of the country. How To Cite: Sutrisno, B. (2016. Constitutionality Degree of Indonesia Local Regulation in Political Law Perspective. Rechtsidee, 3(1, 41-52. doi:http://dx.doi.org/10.21070/jihr.v3i1.131
Measurement of polarization with the Degree Angular Scale Interferometer.
Leitch, E M; Kovac, J M; Pryke, C; Carlstrom, J E; Halverson, N W; Holzapfel, W L; Dragovan, M; Reddall, B; Sandberg, E S
Measurements of the cosmic microwave background (CMB) radiation can reveal with remarkable precision the conditions of the Universe when it was approximately 400,000 years old. The three most fundamental properties of the CMB are its frequency spectrum (which determines the temperature), and the fluctuations in both the temperature and polarization across a range of angular scales. The frequency spectrum has been well determined, and considerable progress has been made in measuring the power spectrum of the temperature fluctuations. But despite many efforts to measure the polarization, detection of this property of the CMB has hitherto been beyond the reach of even the most sensitive observations. Here we describe the Degree Angular Scale Interferometer (DASI), an array of radio telescopes, which for the past two years has conducted polarization-sensitive observations of the CMB from the Amundsen-Scott South Pole research station.
THE DEGREE OF CONSUMER SATISFACTION WITH HOTEL SERVICES
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Danka CURAKOVIĆ
2013-07-01
Full Text Available The customer focus is one of the principles of quality management in organizations whose decisions, policy and strategy are based on market analysis. The results of the analysis are then used in the introduction of innovation, planning, investment in order to positioning in the market and meeting customer needs. The subject of research is the degree of consumer satisfaction with hotel services in order to determining the extent to which their quality meets customer needs and preferences. For the purposes of this paper there was conducted a research of primary and secondary materials, as well as field research in the July-August 2011. The research was conducted in hotels and B&B hotels in Novi Sad. The principal part of the paper is the analysis and description of results obtained in the study. The research results can be used by hotel managers in order to improve and adapt hotel services to market needs, as well by students.
A study on degree of approximation by Karamata summability method
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Nigam Hare
2011-01-01
Full Text Available Abstract Vuĉkoviĉ [Maths. Zeitchr. 89, 192 (1965] and Kathal [Riv. Math. Univ. Parma, Italy 10, 33-38 (1969] have studied summability of Fourier series by Karamata (K λ summability method. In present paper, for the first time, we study the degree of approximation of function f ∈ Lip (α,r and f ∈ W(L r ,ξ(t by K λ-summability means of its Fourier series and conjugate of function f ̃ ∈ Lip ( α , r and f ̃ ∈ W ( L r , ξ ( t by K λ-summability means of its conjugate Fourier series and establish four quite new theorems. MSC: primary 42B05; 42B08; 42A42; 42A30; 42A50.
Effective degrees of freedom of the quark-gluon plasma
Energy Technology Data Exchange (ETDEWEB)
Castorina, P. [Dipartimento di Fisica, Universita di Catania, and INFN Sezione di Catania, Via Santa Sofia 64, I-95100 Catania (Italy); Mannarelli, M. [Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)]. E-mail: massimo@lns.mit.edu
2007-01-25
The effective degrees of freedom of the quark-gluon plasma are studied in the temperature range {approx}(1-2)T{sub c}. We show that including light bosonic states one can reproduce the pressure and energy density of the quark-gluon plasma obtained by lattice simulations. The number of the bosonic states required is at most of the order of 20, consistent with the number of light mesonic states and in disagreement with a recently proposed picture of the quark-gluon plasma as a system populated with exotic bound states. We also constrain the quark quasiparticle chiral invariant mass to be {approx}300 MeV. Some remarks regarding the role of the gluon condensation and the baryon number-strangeness correlation are also presented.
Dynamics and Thermodynamics with Nuclear Degrees of Freedom
Chomaz, Philippe; Trautmann, Wolfgang; Yennello, Sherry J
2006-01-01
The study of nuclear reaction dynamics and thermodynamics with nuclear degrees of freedom has progressed dramatically in the past 20 years, from inclusive charge distributions to exclusive isotopically resolved fragment observables and from schematic phenomenological break-up models to sophisticated quantum many-body transport theories. A coherent and quantitative understanding of reaction mechanisms and of the underlying nuclear matter equation of state is emerging from the analysis of experimental data and from the theoretical modeling of heavy ion reactions. In addition, the accumulated evidence for phenomena related to the liquid-gas phase transition of nuclear matter has triggered interdisciplinary activities and the transfer of useful methods. In the near future, the availability of radioactive beam facilities is expected to provide unique opportunities for extending our knowledge of the dynamic properties and the nuclear phase diagram towards exotic nuclear systems with important astrophysical implicat...
Analysis of Satisfaction Degree of the Public Insurance System Beneficiaries
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Manuela PANAITESCU
2013-08-01
Full Text Available The public insurance system provides financial benefits to individuals that are obtained by collecting the due contributions. The analysis of satisfaction degree of the beneficiaries of the system was carried out to determine the challenges the system is facing and for determining the needs of the beneficiaries. In order to reduce the financial constraints the public insurance system is facing, it is necessary to create an appropriate insurance system that meets the needs of the beneficiaries. The research took into account that the public insurance system determines the quality of life of the population and has a strong influence on the economy, particularly on the labour market and the capital market.
Printing Detecting Algorithm Basing on Maximum Degree of Recognition
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Hu Zhang
2013-04-01
Full Text Available In modern packaging, printing industry, due to effects of the properties of the strip itself and the ambient light, strip background color and the color of the printing line, the low contrast boundaries of the strip on both sides and so on, the traditional digital qualitative detection and control to the correction system does not meet the comprehensive requirements. This paper aims to study the detection of a continuous line, discontinuous line and color dividing line on the strip, and because of low contrast between background color and dividing line, we proposed an innovative solution and implementation. This article discusses a new algorithm basing on maximum degree of recognition and optimal light source search algorithm, and we simulated this in MATLAB, finally, we completed the physical testing of the overall system.
Familial clustering of myocardial infarction in first-degree relatives
DEFF Research Database (Denmark)
Nielsen, Mia; Andersson, Charlotte; Gerds, Thomas A
2013-01-01
case with MI at an age years was associated with an RR of 3.30 (2.92–3.72) while a case >50 years was associated with a risk of 1.83 (1.73–1.93). For maternal cases below and above 50 years of age the risks were 3.23 (2.56–4.10) and 2.31 (2.11–2.52), respectively. Conclusion First-degree relatives...... of a patient with myocardial infarction themselves have a substantial higher risk of myocardial infarction. The risk is particularly elevated when the MI case is the mother or a sibling, and when the MI case has the infarction before the age of 50 years....
The strong Novikov conjecture for low degree cohomology
Schick, Thomas
2007-01-01
We show that for each discrete group G, the rational assembly map K_*(BG) \\otimes Q \\to K_*(C*_{max} G) \\otimes \\Q is injective on classes dual to the subring generated by cohomology classes of degree at most 2 (identifying rational K-homology and homology via the Chern character). Our result implies homotopy invariance of higher signatures associated to these cohomology classes. This consequence was first established by Connes-Gromov-Moscovici and Mathai. Our approach is based on the construction of flat twisting bundles out of sequences of almost flat bundles as first described in our previous work. In contrast to the argument of Mathai, our approach is independent of (and indeed gives a new proof of) the result of Hilsum-Skandalis on the homotopy invariance of the index of the signature operator twisted with bundles of small curvature.
Integration of immersive virtual reality in Communication Degrees
Directory of Open Access Journals (Sweden)
Dr. Ubaldo Cuesta Cambra
2016-07-01
Full Text Available The European Higher Education Area promotes the integration of new technologies in didactic innovation and it aims to improve skills. It has been requested by students at the Complutense University of Madrid, who have a digital native profile or millennial. This article is a study about implementation of immersive virtual reality in the practical part of the subjects related to business communication. Specifically, it applied in the subject Crisis Communication. The methodology is a survey and three focus groups for professors and students. The conclusions say that the implementation of immersive virtual reality improves the expectations and interest of students. It also improves the skills acquired and the practical part of the subjects of communication improve employment of students of the Degree, which is one of their main causes of dissatisfaction. The full implementation of mobile telephony suggests using virtual reality devices adapted to them rather than “caves” (C.A.V.E. or consoles.
A web site for calculating the degree of chirality.
Zayit, Amir; Pinsky, Mark; Elgavi, Hadassah; Dryzun, Chaim; Avnir, David
2011-01-01
The web site, http://www.csm.huji.ac.il/, uses the Continuous Chirality Measure to evaluate quantitatively the degree of chirality of a molecule, a structure, a fragment. The value of this measure ranges from zero, the molecule is achiral, to higher values (the upper limit is 100); the higher the chirality value, the more chiral the molecule is. The measure is based on the distance between the chiral molecule and the nearest structure that is achiral. Questions such as the following can be addressed: by how much is one molecule more chiral than the other? how does chirality change along conformational motions? is there a correlation between chirality and enantioselectivity in a series of molecules? Both elementary and advanced features are offered. Related calculation options are the symmetry measures and shape measures.
Quantum Computation Based on Photons with Three Degrees of Freedom
Luo, Ming-Xing; Li, Hui-Ran; Lai, Hong; Wang, Xiaojun
2016-05-01
Quantum systems are important resources for quantum computer. Different from previous encoding forms using quantum systems with one degree of freedom (DoF) or two DoFs, we investigate the possibility of photon systems encoding with three DoFs consisting of the polarization DoF and two spatial DoFs. By exploring the optical circular birefringence induced by an NV center in a diamond embedded in the photonic crystal cavity, we propose several hybrid controlled-NOT (hybrid CNOT) gates operating on the two-photon or one-photon system. These hybrid CNOT gates show that three DoFs may be encoded as independent qubits without auxiliary DoFs. Our result provides a useful way to reduce quantum simulation resources by exploring complex quantum systems for quantum applications requiring large qubit systems.
How Does the Degree of Variability Affect Bug-Finding?
DEFF Research Database (Denmark)
Melo, Jean; Brabrand, Claus; Wasowski, Andrzej
2016-01-01
place. The difficulty in reasoning about several configurations is a likely reason why the variability bugs are actually introduced in configurable programs. We hope that the detailed findings presented here will inspire the creation of programmer support tools addressing the challenges faced......Software projects embrace variability to increase adaptability and to lower cost; however, others blame variability for increasing complexity and making reasoning about programs more difficult. We carry out a controlled experiment to quantify the impact of variability on debugging of preprocessor......-based programs. We measure speed and precision for bug finding tasks defined at three different degrees of variability on several subject programs derived from real systems. The results show that the speed of bug finding decreases linearly with the number of features, while effectiveness of finding bugs...
Measuring the Degree of Local Administration Action in Economic Development
Directory of Open Access Journals (Sweden)
Elena Botezat
2006-03-01
Full Text Available The attentive diagnosis of the local economic basis, the deep understanding of the obstacles that confront the economic growth and the investments, the elaboration and the implementation of certain strategies to facilitate the investments are the means by which the local authorities can assure the future of the local community which voted them. The present paper proposes to measure the effectiveness and efficacity of their activity by lying the basis of the methodology of calculating the degree the local authorities imply themselves in the local economic development and its impact upon the financial mana¬gement performance of a certain town. Only a management that sustains the local economic development can lead to the permanent growth of the economic basis, which generates permanent development.
Galaxy Evolution Within the Kilo-Degree Survey
Tortora, C.; Napolitano, N. R.; La Barbera, F.; Roy, N.; Radovich, M.; Getman, F.; Brescia, M.; Cavuoti, S.; Capaccioli, M.; Longo, G.
The ESO Public Kilo-Degree Survey (KiDS) is an optical wide-field imaging survey carried out with the VLT Survey Telescope and the OmegaCAM camera. KiDS will scan 1,500 deg2 in four optical filters (u, g, r, i). Designed to be a weak lensing survey, it is ideal for galaxy evolution studies, thanks to the high spatial resolution of VST, the excellent seeing and the photometric depth. The surface photometry has provided with structural parameters (e.g. size and Sérsic index), aperture and total magnitudes have been used to obtain photometric redshifts from Machine Learning methods and stellar masses/luminositites from stellar population synthesis. Our project aimed at investigating the evolution of the colour and structural properties of galaxies with mass and environment up to redshift z ˜ 0.5 and more, to put constraints on galaxy evolution processes, as galaxy mergers.
360º Degree Requirement Elicitation Framework for Cloud Service Providers
Directory of Open Access Journals (Sweden)
Versha Saxena
2015-03-01
Full Text Available Thisstudy addresses the factors responsible for cloud computing adoption in implementing cloud computing for any organization. Service Level Agreements play a major role for cloud consumer as well as for cloud provider. SLA depends on the requirements gathered by the cloud providers and they vary with the type of organizations for which process is being performed such as education, retail, IT industry etc. SLAs for cloud computing involves technical as well as business requirements which makes the gathering of requirements from stakeholders point of view the heterogeneous process. This research work proposes a 360 degree requirement gathering framework, which reduces the complexitiesduring the process of requirement gathering by cloud service providersas well as SLAs more reliant.
Negative absolute temperature for motional degrees of freedom.
Braun, S; Ronzheimer, J P; Schreiber, M; Hodgman, S S; Rom, T; Bloch, I; Schneider, U
2013-01-04
Absolute temperature is usually bound to be positive. Under special conditions, however, negative temperatures-in which high-energy states are more occupied than low-energy states-are also possible. Such states have been demonstrated in localized systems with finite, discrete spectra. Here, we prepared a negative temperature state for motional degrees of freedom. By tailoring the Bose-Hubbard Hamiltonian, we created an attractively interacting ensemble of ultracold bosons at negative temperature that is stable against collapse for arbitrary atom numbers. The quasimomentum distribution develops sharp peaks at the upper band edge, revealing thermal equilibrium and bosonic coherence over several lattice sites. Negative temperatures imply negative pressures and open up new parameter regimes for cold atoms, enabling fundamentally new many-body states.
Bayesian Degree-Corrected Stochastic Block Models for Community Detection
Peng, Lijun
2013-01-01
Community detection in networks has drawn much attention in diverse fields, especially social sciences. Given its significance, there has been a large body of literature among which many are not statistically based. In this paper, we propose a novel stochastic blockmodel based on a logistic regression setup with node correction terms to better address this problem. We follow a Bayesian approach that explicitly captures the community behavior via prior specification. We then adopt a data augmentation strategy with latent Polya-Gamma variables to obtain posterior samples. We conduct inference based on a canonically mapped centroid estimator that formally addresses label non-identifiability. We demonstrate the novel proposed model and estimation on real-world as well as simulated benchmark networks and show that the proposed model and estimator are more flexible, representative, and yield smaller error rates when compared to the MAP estimator from classical degree-corrected stochastic blockmodels.
Multi-degree of freedom joystick for virtual reality simulation.
Head, M J; Nelson, C A; Siu, K C
2013-11-01
A modular control interface and simulated virtual reality environment were designed and created in order to determine how the kinematic architecture of a control interface affects minimally invasive surgery training. A user is able to selectively determine the kinematic configuration of an input device (number, type and location of degrees of freedom) for a specific surgical simulation through the use of modular joints and constraint components. Furthermore, passive locking was designed and implemented through the use of inflated latex tubing around rotational joints in order to allow a user to step away from a simulation without unwanted tool motion. It is believed that these features will facilitate improved simulation of a variety of surgical procedures and, thus, improve surgical skills training.
Analysis of regular structures third degree based on chordal rings
DEFF Research Database (Denmark)
Bujnowski, Slawomir; Dubalski, Bozydar; Pedersen, Jens Myrup
2009-01-01
This paper presents an analysis of modified chordal rings third degree (CR3m) and modified double ring structure (N2Rm), which can be used as models of real networks. The proposed solutions are novel and different from the ones currently used since they have two chords of different lengths....... In the first part of paper, formulas for the basic parameters diameter and average path length were derived using optimal/ideal graphs, and used for indicating transmission properties of the structures. These analytical results were confirmed by comparison to a large number of computations on real graphs. In...... the second part, these parameters were compared to the parameters of standard topologies, showing that the distances are shorter when having two different chord lengths....
The essential research curriculum for doctor of pharmacy degree programs.
Lee, Mary W; Clay, Patrick G; Kennedy, W Klugh; Kennedy, Mary Jayne; Sifontis, Nicole M; Simonson, Dana; Sowinski, Kevin M; Taylor, William J; Teply, Robyn M; Vardeny, Orly; Welty, Timothy E
2010-09-01
In 2008, the American College of Clinical Pharmacy appointed the Task Force on Research in the Professional Curriculum to review and make recommendations on the essential research curriculum that should be part of doctor of pharmacy (Pharm.D.) degree programs. The essential research curriculum provides all students with critical and analytical thinking and lifelong learning skills, which will apply to current and future practice and stimulate some students to pursue a career in this field. Eight key curricular competencies are as follows: identifying relevant problems and gaps in pharmacotherapeutic knowledge; generating a research hypothesis; designing a study to test the hypothesis; analyzing data results using appropriate statistical tests; interpreting and applying the results of a research study to practice; effectively communicating research and clinical findings to pharmacy, medical, and basic science audiences; interpreting and effectively communicating research and clinical findings to patients and caregivers; and applying regulatory and ethical principles when conducting research or using research results. Faculty are encouraged to use research-related examples across the curriculum in nonresearch courses and to employ interactive teaching methods to promote student engagement. Examples of successful strategies used by Pharm.D. degree programs to integrate research content into the curriculum are provided. Current pharmacy school curricula allow variable amounts of time for instructional content in research, which may or may not include hands-on experiences for students to develop research-related skills. Therefore, an important opportunity exists for schools to incorporate the essential research curriculum. Despite the challenges of implementing these recommendations, the essential research curriculum will position pharmacy school graduates to understand the importance of research and its applications to practice. This perspective is provided as an aid
[Evidence-based practice competence in undergraduate Nursing Degree students].
Ruzafa-Martínez, María; Molina-Salas, Yolanda; Ramos-Morcillo, Antonio Jesús
2016-01-01
Evidence-based practice (EBP) learning has become a key issue for nurses. An EPB subject was included in the 4(th) year in the new syllabus of the Nursing Degree at University of Murcia (UM). To know the competence level in EBP of undergraduate nursing students at UM and compare the results between all four years. Observational descriptive study with a cross-sectional approach. undergraduate nursing students from all four years at Nursing Degree at the Faculty of Social and Healthcare Science at UM in the year 2013-14. EBP evaluation of competence of the nursing students consisted of attitude, skills and knowledge on EBP. A validated questionnaire, the EBP-COQ, was used. The scale range is 1 point «lowest level» to 5 points «higher level».The SPSS 21.0 program has been used to carry out descriptive and bivariate analyses. 144 students were included, 76.4% was female, and the median age was 23 years, 84.7% attended more than 75% class hours. The mean differences in the questionnaire between first and fourth years were 0.58 points in attitude, 0.60 in skills, 1.6 in knowledge and 0.83 in global competence in EBP. Significant differences in mean scores between the fourth and the remaining years in the global competence in EBP were observed, as well as in the three dimensions (p <0.05). The undergraduate-nursing students studied here have acquired an appropriate competence level in EBP, with a gradual increase by year. The biggest increase was in the fourth year students. Copyright © 2015 Elsevier España, S.L.U. All rights reserved.
Does the degree of advancement during functional appliance therapy matter?
Al-Kalaly, Abdullah
2008-01-01
The aim of this study was to assess the effect of varied degrees of mandibular advancement on condylar growth. Three hundred and thirty five 35-day-old female Sprague–Dawley rats were randomly divided into 10 experimental groups (n = 10) and five control groups (n = 5) for analysis of new bone formation and 10 experimental groups (n = 14) and five control groups (n = 14) for molecular analysis. The experimental animals were fitted with bite-jumping appliance to advance the mandible 2 and 4 mm. The rats were sacrificed on days 3, 7, 14, 21, and 30. A computer-assisted image analysing system was used to assess the quantity of new condylar bone formation. Molecular analysis utilizing real-time reverse transcription–polymerase chain reaction was used to assess the different levels of mRNA expression of different growth markers in the condyle. One-way analysis of variance (ANOVA), with a Bonferroni multiple comparison test, showed significantly more newly formed bone in the 4 mm group compared with the 2 mm and control groups on days 21 and 30 (P < 0.05). Most of the examined growth markers demonstrated a significant increase during the 4 mm advancement (P < 0.05). Indian hedgehog (Ihh) mRNA showed a 7- and 5-fold change, parathyroid hormone-related peptide (PTHrP) a 5.2- and 3-fold change and type II collagen a 9.6- and 3.7-fold change in the 4 and 2 mm advancement groups, respectively. Varied degrees of mandibular advancement result in different quantities of new bone formation and levels of expression of growth members: Ihh, PTHrP, and type II collagen. PMID:18343894
Degree and reciprocity of self-disclosure in online forums.
Barak, Azy; Gluck-Ofri, Orit
2007-06-01
Cyberspace has become a common social environment in which people interact and operate in many ways. The purpose of the present study was to investigate the occurrence and reciprocity of self-disclosure, two subjects that are extensively studied in face-to-face interactions but only to a limited degree in virtual, computer-mediated, textual communication. Data was based on 240 first messages in a thread, sampled in equal numbers from six Internet forums (three discussion and three support groups), and written in equal numbers by each gender, and 240 first responses to them (a total of 480 forum messages). Trained, expert judges blindly rated each message on the degree to which it disclosed personal information, thoughts, and feelings. Linguistic parameters (total number of words and number of first-voice words) were also used as dependent variables. Results showed the following: (a) self-disclosure in support forums was much higher than in discussion forums, in terms of both total number and type of disclosure; (b) messages in support forums were longer and included more first-voice words than in discussion forums; (c) there were no gender differences interacting with level of self-disclosure; (d) reciprocity of self-disclosure was evident, yielding positive correlations between the measures of self-disclosure in messages and responses to them; (e) some differences appeared in level of reciprocity of self-disclosure between male and female participants, with female respondents tending to be more reciprocal than male respondents. The implications of these results are discussed in light of growing social interactions online, and possible applications are suggested.
The New Debate: The PhD versus the MFA Degree.
Barranger, Milly S.; And Others
1986-01-01
Introduces and includes "The Ritz Bar or ABD: In Defense of the MFA," in which Peter Garvie defends the professionalism of the MFA degree in theatre, and "The PhD in Theatre--A Vanishing Degree?" Richard Hornby's discussion of the importance of the doctoral degree as the standard teaching degree. (PD)
Energy Technology Data Exchange (ETDEWEB)
Oliver, H.W.; Sikora, R.F. (Geological Survey, Menlo Park, CA (United States)); Robbins, S.L. (Geological Survey, Denver, CO (United States))
1993-04-01
Since Wagini's 1986 Bouguer and isostatic gravity compilations of the Winnemucca 1[degree] by 2[degree] quadrangle, R. Sikora has provided an 1991 update that includes 133 new stations obtained in the Sonoma Range, Boulder Valley, and the Battle Mountain areas. Since that 1991 update, 371 additional stations have been obtained by S. Robbins in the Pine and Crescent Valley areas to look for possible gravity signatures of petroleum and gold deposits. All these data have been reduced and incorporated into a new isostatic gravity map of the quadrangle. This new compilation shows that the largest residual low of 32 mGal occurs over petroleum-bearing Pine Valley, although nearly-as-large gravity lows (27--31 mGal) occur over Buena Vista, Pleasant, Reese River, and Grass Valleys. A new aeromagnetic compilation of the Winnemucca quadrangle is continued downward to 300 m above terrain and shows a number of magnetic highs associated with igneous rocks, both intrusive and extrusive. A nearly continuous north-northwest trending magnetic high of about 400 nT, known as the northern Nevada rift, cuts across the quadrangle about 10 km east of Battle Mountain and is associated at some locations with Miocene basaltic and andesitic extrusive rocks. Three Miocene epithermal gold deposits are associated with this magnetic high at Mule Canyon, Fire Creek, and Bluckhorn. A smaller but broader magnetic high of about 200 nT at 300 m above terrain is located over the Tuscarora Mountains about 15 km northwest of Carlin. The maximum horizontal gradient of the pseudogravity transformation of the total magnetic field coincides with a series of ten productive gold mines known as the Carlin trend.
Arce, A.; Caniego, J.; Vazquez, J.; Serrano, A.; Tarquis, A. M.; Cartagena, M. C.
2012-04-01
The Bologna process is to improve the quality of education, mobility, diversity and the competitiveness and involves three fundamental changes: transform of the structure of titles, changing in methods of teaching and implementation of the systems of quality assurance. Once that the new degrees have been implemented with this structure, and began at E.T.S. of Agriculture Engineering (ETSIA) at Madrid from 2010-2011 course, the main aim of this work is to deeply study the changes in teaching methodology as well as progressively implementation of the educational planning of the three new degrees: Engineering and Agronomic Graduate, Food Industry Engineering Graduate and Agro-environmental Graduate. Each one of them presents 240 ECTS with a common first course and will have access to an official Master in Agronomic Engineering. As part as an educational innovation project awarded by the Technical University of Madrid (UPM) to improve educational quality, the second course has been designed with the main objective to continue the educative model implemented last course. This model identifies several teaching activities and represents a proper teaching style at ETSIA-UPM. At the same time, a monitoring and development coordination plans have been established. On the other hand, a procedure to extinguish the earlier plans of Agriculture Engineering was also defined. Other activities related to this Project were the information improvement of the grades, in particular at High Schools centers, improving the processes of reception, counseling and tutoring and mentoring. Likewise, cooperative working workshops and programs to support the teaching of English language were implemented. Satisfaction surveys and opinion polls were done to professors and students involved in first course in order to test several aspects of this project. The students surveys were analyzed taking in account the academic results and their participation in mentoring activities giving a highly
Krugman, Mary; Bretschneider, Joan; Horn, Phyllis B; Krsek, Cathleen A; Moutafis, Roxanne A; Smith, Marion Oare
2006-01-01
The Chief Nursing Officers (CNOs) of the University HealthSystems Consortium (UHC) of Academic Hospitals desired to increase the numbers of baccalaureate graduate nurses hired by their facilities and provide a more consistent, uniform transition into practice for these graduate nurses. A partnership between the UHC CNOs and the American Association of Colleges of Nursing (AACN) led to establishing a National Post-Baccalaureate Graduate Nurse Residency Program. The structure, curriculum, and outcomes measures were developed and the program was implemented, with growth from six original pilot sites to 34 academic hospitals. Outcomes from the first year of program operation at these six sites show a high rate of retention, decreased stress by graduate nurses over time, improved organization and prioritization of care, and increased satisfaction in the first year of practice.
A Six Degrees of Freedom Dynamic Wire-Driven Traverse
Directory of Open Access Journals (Sweden)
2016-04-01
Full Text Available A novel support mechanism for a wind tunnel model is designed, built, and demonstrated on an aerodynamic platform undergoing dynamic maneuvers, tested with periodic motions up to 20 Hz. The platform is supported by a 6-DOF (six degrees of freedom traverse that utilizes eight thin wires, each mounted to a servo motor with an in-line load cell to accurately monitor or control the platform motion and force responses. The system is designed such that simultaneous control of the servo motors effects motion within ±50 mm translations, ±15° pitch, ±9° yaw, and ±8° roll at lower frequencies. The traverse tracks a desired trajectory and resolves the induced forces on the platform at 1 kHz. The effected motion of the platform is measured at 0.6 kHz with a motion capture system, which utilizes six near-infrared (NIR cameras for full spatial and temporal resolution of the platform motion, which is used for feedback control. The traverse allows different platform model geometries to be tested, and the present work demonstrates its capabilities on an axisymmetric bluff body. Programmable timed outputs are synchronized relative to the model motion and can be used for triggering external systems and processes. In the present study, particle image velocimetry (PIV is used to characterize the realized wakes of the platform undergoing canonical motions that are effected by this new wind tunnel traverse.
Spatial Frequency Modulates the Degree of Illusory Second Flash Perception.
Takeshima, Yasuhiro; Gyoba, Jiro
2015-01-01
When a brief single flash is presented simultaneously with two brief beeps, the number of presented flashes is often perceived as two. This phenomenon is referred to as the fission illusion. Several effects related to the fission illusion have been investigated using both psychophysical and neurophysiological methods. The present study examined the effects of spatial frequency on the fission illusion. At a low spatial frequency, transient channels respond preferably; conversely, sustained channels respond preferably at a high spatial frequency. Sustained channels differ in temporal properties from transient channels and are characterized by poor temporal resolution and slow-onset responses. In our previous study, visual stimuli presented at a slow processing speed were not conducive to the fission illusion. Therefore, we hypothesized that the fission illusion would not be difficult to observe when using high spatial frequencies. The results indicated that the degree of the perceived illusory second flash was reduced when spatial frequency was high as compared to when it was is low. Furthermore, according to signal detection theory, this difference between high and low spatial frequencies was not attributed to participants' response biases. Therefore, the fission illusion likely will not occur in conditions of slow processing speed and long response latencies in sustained channels, which respond preferably to high spatial frequency stimuli. Overall, the results indicated that the fission illusion was affected by temporal characteristics of lower-order sensory processing stages.
Results with the 101/45 degree optics
Assmann, R W; Dehning, Bernd; Hildreth, M; Lamont, M; Matheson, J; Mugnai, G; Placidi, Massimo; Prochnow, J; Raimondi, Pantaleo; Roncarolo, F; Torrence, E; Verdier, A; Wenninger, J; CERN. Geneva. SPS and LEP Division
2000-01-01
A new optics with a phase advance of 101/45 degrees has been commissioned in LEP and used for polarization, spectrometer and energy calibration studies in 1999. Sufficient polarization for energy calibration (by resonant depolarization) was established from 41 GeV to 60 GeV. In agreement with expectations the level of polarization was similaror somewhat higher than with the 60/60 optics. In particular the newoptics allowed establishing polarization at 60.6 GeV, which had failed in several attempts for the 60/60 optics in 1999.With the 101/45 optics transverse spin polarization was measured for the first time in the regime of very strong synchrotron radiation. A level below 1% was measured at 70 GeV, 92 GeV and 98.5 GeV inagreement with theoretical predictions (compatible with zero polarization).A hypothetical increase of polarization at high energy was not observed. Beam energy measurements with the spectrometer were performed in parallelto polarization studies, spanning the range from 41 GeV to almost 100 Ge...
Trimmed Moebius Inversion and Graphs of Bounded Degree
Björklund, Andreas; Kaski, Petteri; Koivisto, Mikko
2008-01-01
We study ways to expedite Yates's algorithm for computing the zeta and Moebius transforms of a function defined on the subset lattice. We develop a trimmed variant of Moebius inversion that proceeds point by point, finishing the calculation at a subset before considering its supersets. For an $n$-element universe $U$ and a family $\\scr F$ of its subsets, trimmed Moebius inversion allows us to compute the number of packings, coverings, and partitions of $U$ with $k$ sets from $\\scr F$ in time within a polynomial factor (in $n$) of the number of supersets of the members of $\\scr F$. Relying on an intersection theorem of Chung et al. (1986) to bound the sizes of set families, we apply these ideas to well-studied combinatorial optimisation problems on graphs of maximum degree $\\Delta$. In particular, we show how to compute the Domatic Number in time within a polynomial factor of $(2^{\\Delta+1-2)^{n/(\\Delta+1)$ and the Chromatic Number in time within a polynomial factor of $(2^{\\Delta+1-\\Delta-1)^{n/(\\Delta+1)$. F...
Signalling a foundry mould filling degree with infrared sensors
Directory of Open Access Journals (Sweden)
M. Bogdan
2008-07-01
Full Text Available A contactless method of measuring a foundry mould filling degree in course of its pouring with liquid metal is suggested. The concept is based on infrared radiation of molten metal appearing in venting and flow-off holes. As the detector, an infrared channel receiving diode is applied. Three solutions were tested. In the first solution, the diode is placed at the calculated distance from the radiation source, in a housing that suppresses the scattered signal. The housing contains the electronics, while power supply and control signals are delivered by conductors. A diode actuation threshold is established in order to obtain high resolution and repeatability of the results. On the output, a miniature relay transmits the signal to the control system. In the second solution, the measuring system is supplied with a battery and the signal in transmitted through a plastic optical fibre. In the third solution, the optical fibre serves as an energy carrier. The optical system focuses the infrared radiation and introduces the energy to the optical fibre. On the other end of the fibre, a phototransistor amplifies the signal, forms it and transmits to the control system. Some experiments were carried out. Their results permitted noting disadvantages and advantages of individual solutions. It was evidenced that the measurement results obtained using the infrared radiation are independent on a constructional design. The solutions utilising optical fibres proved to be more useful in industrial conditions. Targets and further directions of research works using transceivers for wireless data transmission are presented.
Powered exoskeleton with palm degrees of freedom for hand rehabilitation.
Richards, Daniel S; Georgilas, Ioannis; Dagnino, Giulio; Dogramadzi, Sanja
2015-08-01
Robotic rehabilitation is a currently underutilised field with the potential to allow huge cost savings within healthcare. Existing rehabilitation exoskeletons oversimplify the importance of movement of the hand while undertaking everyday tasks. Within this study, an investigation was undertaken to establish the extent to which the degrees of freedom within the palm affect ability to undertake everyday tasks. Using a 5DT data glove, bend sensing resistors and restrictors of palm movement, 20 participants were recruited to complete tasks that required various hand shapes. Collected data was processed and palm arching trends were identified for each grasping task. It was found that the extent of utilizing arches in the palm varied with each exercise, but was extensively employed throughout. An exoskeleton was subsequently designed with consideration of the identified palm shapes. This design included a number of key features that accommodated for a variety of hand sizes, a novel thumb joint and a series of dorsally mounted servos. Initial exoskeleton testing was undertaken by having a participant complete the same exercises while wearing the exoskeleton. The angles formed by the user during this process were then compared to those recorded by 2 other participants who had completed the same tasks without exoskeleton. It was found that the exoskeleton was capable of forming the required arches for completing the tasks, with differences between participants attributed to individual ergonomic differences.
Elastic Cube Actuator with Six Degrees of Freedom Output
Directory of Open Access Journals (Sweden)
Pengchuan Wang
2015-09-01
Full Text Available Unlike conventional rigid actuators, soft robotic technologies possess inherent compliance, so they can stretch and twist along every axis without the need for articulated joints. This compliance is exploited here using dielectric elastomer membranes to develop a novel six degrees of freedom (6-DOF polymer actuator that unifies ordinarily separate components into a simple cubic structure. This cube actuator design incorporates elastic dielectric elastomer membranes on four faces which are coupled by a cross-shaped end effector. The inherent elasticity of each membrane greatly reduces kinematic constraint and enables a 6-DOF actuation output to be produced via the end effector. An electro-mechanical model of the cube actuator is presented that captures the non-linear hyperelastic behaviour of the active membranes. It is demonstrated that the model accurately predicts actuator displacement and blocking moment for a range of input voltages. Experimental testing of a prototype 60 mm device demonstrates 6-DOF operation. The prototype produces maximum linear and rotational displacements of ±2.6 mm (±4.3% and ±4.8° respectively and a maximum blocking moment of ±76 mNm. The capacity for full 6-DOF actuation from a compact, readily scalable and easily fabricated polymeric package enables implementation in a range of mechatronics and robotics applications.
Phase Space Velocy Correlation and Degrees of Freedom
Mattingly, Sean; Berumen, Jorge; Chu, Feng; Hood, Ryan; Skiff, Fred
2016-10-01
We measure the phase space distribution function's velocity correlation function C(v ,v' , τ) = t in a cylindrical axially magnetized laboratory plasma (n 109 ,Te 5eV ,Ti 0.08eV) generated with an inductively coupled RF source. We use Laser Induced Fluorescence (LIF) with two lasers that each have their own atomic transition scheme and collection optics to simultaneously measure distinct ion subpopulations at differing velocities v and v'. A separately mounted antenna facilitates the velocity correlation measurement through either single mode excitation with a sinusoidal signal or broadband excitation with white noise. LIF photon acquisition is synchronized with digitizer sampling of the signal driving the fluctuation excitation antenna. With this we explore phase space degrees of freedom in v and v' with either monochromatic or broadband excitation. Finally, driving a sinusoidal wave near the ion cyclotron frequency causes linear wave - particle resonance ω - nΩci =k| |(ω) v| | that results in a tunable ion resonance velocity located within the Doppler broadened IVDF - making it measureable by LIF. NSF DOE Grant DE-FG02-99ER54543.
Degree of vinyl conversion in experimental amorphous calcium phosphate composites
Tarle, Z.; Knežević, A.; Matošević, D.; Škrtić, D.; Ristić, M.; Prskalo, K.; Musić, S.
2009-04-01
An experimental dental composite, based on amorphous calcium phosphate (ACP) with the potential to arrest caries development and regenerate mineral-deficient tooth structures has recently been developed. The aim of this study was to assess the degree of vinyl conversion (DVC) attained in experimental composites based on zirconia-modified ACP. Photo-activated resins were based on ethoxylated bisphenol A dimethacrylate (EBPADMA) [ETHM series with varying EBPADMA/triethylene glycol dimethacrylate (TEGDMA) molar ratios assigned 0.5-ETHM I, 0.85-ETHM II and 1.35-ETHM III], or 2,2-bis[p-(2'-hydroxy-3'-methacryloxypropoxy)phenyl]-propane (Bis-GMA) [BTHZ series]. To asses a possible effect of filler particle size on DVC, composites containing 60 mass % resin and 40 mass % of either milled ACP (mACP; median diameter d m = 0.9 μm) or coarse ACP (cACP; d m = 6.0 μm) were prepared, and irradiated with LED curing unit for 40 s. The DVC was calculated as the % change in the ratio of the integrated peak areas between the aliphatic and aromatic absorption bands determined by Fourier transform infrared spectroscopy (FTIR). The highest DVCs values were attained in mACP-BTHZ, cACP-BTHZ and mACP-ETHM III formulations. DVC of tested ACP composites (on average (76.76 ± 4.43)%) compares well with or exceeds DVCs values reported for the majority of commercial materials.
Lower Bound on Weights of Large Degree Threshold Functions
Podolskii, Vladimir V
2012-01-01
An integer polynomial $p$ of $n$ variables is called a \\emph{threshold gate} for the Boolean function $f$ of $n$ variables if for all $x \\in \\{0,1\\}^n$ $f(x)=1$ if and only if $p(x)\\geq 0$. The \\emph{weight} of a threshold gate is the sum of its absolute values. In this paper we study how large weight might be needed if we fix some function and some threshold degree. We prove $2^{\\Omega(2^{2n/5})}$ lower bound on this value. The best previous bound was $2^{\\Omega(2^{n/8})}$ (Podolskii, 2009). In addition we present substantially simpler proof of the weaker $2^{\\Omega(2^{n/4})}$ lower bound. This proof is conceptually similar to other proofs of the bounds on weights of nonlinear threshold gates, but avoids a lot of technical details arising in other proofs. We hope that this proof will help to show the ideas behind the construction used to prove these lower bounds.
Spinal meningioma: relationship between degree of cord compression and outcome.
Davies, Simon; Gregson, Barbara; Mitchell, Patrick
2017-04-01
The aim of this study was to find the relationships between the degree of cord compression as seen on MRIs with persisting cord atrophy after decompression and patient outcomes in spinal meningiomas. We undertook a retrospective analysis of 31 patients' pre- and postoperative MRIs, preoperative functional status and their outcomes at follow-up. The following metrics were analysed; percentage cord area at maximum compression, percentage tumour occupancy and percentage cord occupancy. These were then compared with outcome as measured by the Nurick scale. Of the 31 patients, 27 (87%) had thoracic meningiomas, 3 (10%) cervical and 1 (3%) cervicothoracic. The meningiomas were pathologically classified as grade 1 (29) or grade 2 (2) according to the WHO classification. The average remaining cord cross-sectional area was 61% of the estimated original value. The average tumour occupancy of the canal was 72%. The average cord occupancy of the spinal canal at maximum compression was 20%. No correlation between cord cross-section area and Nurick Scale was seen. On the postoperative scan, the average cord area had increased to 84%. No correlation was seen between this value and outcome. We found that cross-section area measurements on MRI scans have no obvious relationship with function before or after surgery. This is a base for future research into the mechanism of cord recovery and other compressive cord conditions.
Technological Application of Maltodextrins According to the Degree of Polymerization
Directory of Open Access Journals (Sweden)
Zenaida Saavedra-Leos
2015-11-01
Full Text Available Maltodextrin (MX is an ingredient in high demand in the food industry, mainly for its useful physical properties which depend on the dextrose equivalent (DE. The DE has however been shown to be an inaccurate parameter for predicting the performance of the MXs in technological applications, hence commercial MXs were characterized by mass spectrometry (MS to determine their molecular weight distribution (MWD and degree of polymerization (DP. Samples were subjected to different water activities (aw. Water adsorption was similar at low aw, but radically increased with the DP at higher aw. The decomposition temperature (Td showed some variations attributed to the thermal hydrolysis induced by the large amount of adsorbed water and the supplied heat. The glass transition temperature (Tg linearly decreased with both, aw and DP. The microstructural analysis by X-ray diffraction showed that MXs did not crystallize with the adsorption of water, preserving their amorphous structure. The optical micrographs showed radical changes in the overall appearance of the MXs, indicating a transition from a glassy to a rubbery state. Based on these characterizations, different technological applications for the MXs were suggested.
Measuring Photons and Neutrons at Zero Degrees in CMS
Grachov, O A; Murray, M; Snyder, J; Stiles, L; Wood, J; Zhukova, V; Beaumont, W; Ochesanu, S; Debbins, P; Ingram, D; Norbeck, E; Onel, Y; García, E
2007-01-01
The CMS Zero Degree Calorimeters, ZDCs, will measure photons and neutrons emitted with |eta|> 8.6 from Pb+Pb, p+Pb and p+p collisions at sqrt(Snn)=5.5, 8.8 and 14 TeV respectively. The calorimeter consists of an electromagnetic part segmented in the horizontal direction and an hadronic part segmented into four units in depth. In addition CMS will have access to data from a segmented shower maximum detector being built for luminosity measurements. We will present detailed results from tests beam measurements taken at the CERN SPS. These data will be used to extrapolate the utility of the ZDCs to measure photons, and possibly pi0s in p+p and ultra-peripheral heavy-ion collisions. Data from the hadronic section can be used to estimate the number of participants in heavy ion-collisions. In addition we will discuss plans to use the detector to measure the reaction plane, thereby extending the sensitivity of the central detectors in CMS.
Searching for galaxy clusters in the Kilo-Degree Survey
Radovich, M.; Puddu, E.; Bellagamba, F.; Roncarelli, M.; Moscardini, L.; Bardelli, S.; Grado, A.; Getman, F.; Maturi, M.; Huang, Z.; Napolitano, N.; McFarland, J.; Valentijn, E.; Bilicki, M.
2017-02-01
Aims: In this paper, we present the tools used to search for galaxy clusters in the Kilo Degree Survey (KiDS), and our first results. Methods: The cluster detection is based on an implementation of the optimal filtering technique that enables us to identify clusters as over-densities in the distribution of galaxies using their positions on the sky, magnitudes, and photometric redshifts. The contamination and completeness of the cluster catalog are derived using mock catalogs based on the data themselves. The optimal signal to noise threshold for the cluster detection is obtained by randomizing the galaxy positions and selecting the value that produces a contamination of less than 20%. Starting from a subset of clusters detected with high significance at low redshifts, we shift them to higher redshifts to estimate the completeness as a function of redshift: the average completeness is 85%. An estimate of the mass of the clusters is derived using the richness as a proxy. Results: We obtained 1858 candidate clusters with redshift 0 http://kids.strw.leidenuniv.nl/DR2 and at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/598/A107