Finding fixed satellite service orbital allotments with a k-permutation algorithm

NASA Technical Reports Server (NTRS)

Reilly, Charles H.; Mount-Campbell, Clark A.; Gonsalvez, David J. A.

1990-01-01

A satellite system synthesis problem, the satellite location problem (SLP), is addressed. In SLP, orbital locations (longitudes) are allotted to geostationary satellites in the fixed satellite service. A linear mixed-integer programming model is presented that views SLP as a combination of two problems: the problem of ordering the satellites and the problem of locating the satellites given some ordering. A special-purpose heuristic procedure, a k-permutation algorithm, has been developed to find solutions to SLPs. Solutions to small sample problems are presented and analyzed on the basis of calculated interferences.

The Developmentally Disabled Offender in the Illinois Criminal Justice System.

ERIC Educational Resources Information Center

Correctional Services for the Developmentally Disabled, Inc., Chicago, IL.

Reported are findings from five studies which explored the special problems and needs of the developmentally disabled offender in the Illinois criminal justice system. Introductory information includes a discussion of the problem, goals of the present study, and a review of programs for retarded offenders throughout the U.S. Presented are five…

The Problems of Human Environment.

ERIC Educational Resources Information Center

United Nations, New York, NY.

Presented is a summary of considerations Specialized Agencies within the United Nations have given to the problems of the human environment. Uppermost are the problems of pollution--air, water, noise, marine, radiation, food, pesticide--as well as those of economic and social concern, environmental health, and misuse of the environment. Agencies…

Population: The U.S. Problem--The World Crisis.

ERIC Educational Resources Information Center

Kegan, Lawrence R., Ed.

1972-01-01

Population problems in both the United States and throughout the world are summarized and analyzed, pictorially and narratively, in this special newspaper supplement to "The New York Times", April 30, 1972. Part I presents the U. S. problem, with the following contributions: excerpts from President Richard Nixon's message to Congress on…

Emotional/Behavioral difficulties and mental health service contacts of students in special education for non-mental health problems.

PubMed

Pastor, Patricia N; Reuben, Cynthia A

2009-02-01

Emotional/behavioral difficulties and mental health (MH) service contacts of 3 groups of youth were compared: students in special education for non-MH problems, students in special education for MH problems, and youth not in special education. Parents reported the characteristics, special education placement, emotional/behavioral difficulties, and MH service contacts of 25,122 youth aged 6-17 years in the National Health Interview Survey. Two thirds of students in special education received special education services for non-MH problems. Among students in special education for non-MH problems, 17% had serious emotional/behavioral difficulties compared with 51% of students in special education for MH problems and 4% of youth not in special education. MH service contacts were examined only for youth whose difficulties significantly interfered with their ability to function in or out of school. Among youth with serious difficulties, the percentage of youth without a recent MH service contact was greater for students in special education for non-MH problems (40%) and youth not in special education (47%) compared with students in special education for MH problems (13%). Compared with youth not in special education, students in special education for non-MH problems were 4 times more likely to have serious emotional/behavioral difficulties but were just as likely as youth not in special education to lack a recent MH service contact. Study findings provide a national context for considering the MH screening/evaluation needs of students receiving special education for non-MH problems.

Review of water disinfection techniques

NASA Technical Reports Server (NTRS)

Colombo, Gerald V.; Sauer, Richard L.

1987-01-01

Throughout the history of manned space flight the supply of potable water to the astronauts has presented unique problems. Of particular concern has been the microbiological quality of the potable water. This has required the development of both preflight water system servicing procedures to disinfect the systems and inflight disinfectant addition and monitoring devices to ensure continuing microbiological control. The disinfectants successfully used to date have been aqueous chlorine or iodine. Because of special system limitations the use of iodine has been the most successful for inflight use and promises to be the agent most likely to be used in the future. Future spacecraft potable, hygiene, and experiment water systems will utilize recycled water. This will present special problems for water quality control. NASA is currently conducting research and development to solve these problems.

The Coulomb problem on a 3-sphere and Heun polynomials

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bellucci, Stefano; Yeghikyan, Vahagn; Yerevan State University, Alex-Manoogian st. 1, 00025 Yerevan

2013-08-15

The paper studies the quantum mechanical Coulomb problem on a 3-sphere. We present a special parametrization of the ellipto-spheroidal coordinate system suitable for the separation of variables. After quantization we get the explicit form of the spectrum and present an algebraic equation for the eigenvalues of the Runge-Lentz vector. We also present the wave functions expressed via Heun polynomials.

A k-permutation algorithm for Fixed Satellite Service orbital allotments

NASA Technical Reports Server (NTRS)

Reilly, Charles H.; Mount-Campbell, Clark A.; Gonsalvez, David J. A.

1988-01-01

A satellite system synthesis problem, the satellite location problem (SLP), is addressed in this paper. In SLP, orbital locations (longitudes) are allotted to geostationary satellites in the Fixed Satellite Service. A linear mixed-integer programming model is presented that views SLP as a combination of two problems: (1) the problem of ordering the satellites and (2) the problem of locating the satellites given some ordering. A special-purpose heuristic procedure, a k-permutation algorithm, that has been developed to find solutions to SLPs formulated in the manner suggested is described. Solutions to small example problems are presented and analyzed.

Introduction to the special issue Hermann Weyl and the philosophy of the 'New Physics'

NASA Astrophysics Data System (ADS)

De Bianchi, Silvia; Catren, Gabriel

2018-02-01

This Special Issue Hermann Weyl and the Philosophy of the 'New Physics' has two main objectives: first, to shed fresh light on the relevance of Weyl's work for modern physics and, second, to evaluate the importance of Weyl's work and ideas for contemporary philosophy of physics. Regarding the first objective, this Special Issue emphasizes aspects of Weyl's work (e.g. his work on spinors in n dimensions) whose importance has recently been emerging in research fields across both mathematical and experimental physics, as well as in the history and philosophy of physics. Regarding the second objective, this Special Issue addresses the relevance of Weyl's ideas regarding important open problems in the philosophy of physics, such as the problem of characterizing scientific objectivity and the problem of providing a satisfactory interpretation of fundamental symmetries in gauge theories and quantum mechanics. In this Introduction, we sketch the state of the art in Weyl studies and we summarize the content of the contributions to the present volume.

Excellence through Special Education? Lessons from the Finnish School Reform

NASA Astrophysics Data System (ADS)

Kivirauma, Joel; Ruoho, Kari

2007-05-01

The present article focuses on connections between part-time special education and the good results of Finnish students in PISA studies. After a brief summary of the comprehensive school system and special education in Finland, PISA results are analysed. The analysis shows that the relative amount of special education targeted at language problems is highest in Finland among those countries from which comparative statistics are available. The writers argue that this preventive language-oriented part-time special education is an important factor behind the good PISA results.

Comprehensive Substance Abuse Services for Homeless Persons with Alcohol and Other Drug Problems.

ERIC Educational Resources Information Center

Kirby, Michael W., Jr.; Braucht, G. Nicholas

Homeless people with alcohol and other drug problems present the traditional substance abuse services delivery provider with special challenges. This paper discusses the optimal designs of comprehensive treatment services for homeless persons with alcohol and other drug problems. Most importantly, the homeless must have immediate access to a safe…

An "Heretical" Method for Teaching Foreign Languages.

ERIC Educational Resources Information Center

Bar-Lev, Zev

This article presents an output-printed, lexically-based communicative teaching method. Specially designed to impart spontaneous speaking abilities for special students, it is a possible solution to broader problems of foreign language teaching. It is based on the assumption that acquisition-sequence is crucial to successful classroom study, but…

Issues in Retrospective Conversion for a Small Special Collection: A Case Study.

ERIC Educational Resources Information Center

Hieb, Fern

1997-01-01

Small special collections present unique problems for retrospective conversion of catalogs to machine-readable form. Examines retrospective conversion using the Moravian Music Foundation as a case study. Discusses advantages to automation, options for conversion process, quantifying conversion effort, costs, in-house conversion, national standards…

A Special Issue: Geomathematics in practice: Case studies from earth- and environmental sciences - Proceedings of the Croatian-Hungarian Geomathematical Congress, Hungary 2015

NASA Astrophysics Data System (ADS)

Hatvani, István Gábor; Horváth, Janina

2016-01-01

The present paper aims to introduce the current problems of geomathematics along with giving on overview on the papers published in the special issue covering the Croatian-Hungarian Geomathematical Congress of 2015 in Hungary.

Computational approach to Thornley's problem by bivariate operational calculus

NASA Astrophysics Data System (ADS)

Bazhlekova, E.; Dimovski, I.

2012-10-01

Thornley's problem is an initial-boundary value problem with a nonlocal boundary condition for linear onedimensional reaction-diffusion equation, used as a mathematical model of spiral phyllotaxis in botany. Applying a bivariate operational calculus we find explicit representation of the solution, containing two convolution products of special solutions and the arbitrary initial and boundary functions. We use a non-classical convolution with respect to the space variable, extending in this way the classical Duhamel principle. The special solutions involved are represented in the form of fast convergent series. Numerical examples are considered to show the application of the present technique and to analyze the character of the solution.

The dynamics and optimal control of spinning spacecraft and movable telescoping appendages, part A. [two axis control with single offset boom

NASA Technical Reports Server (NTRS)

Bainum, P. M.; Sellappan, R.

1977-01-01

The problem of optimal control with a minimum time criterion as applied to a single boom system for achieving two axis control is discussed. The special case where the initial conditions are such that the system can be driven to the equilibrium state with only a single switching maneuver in the bang-bang optimal sequence is analyzed. The system responses are presented. Application of the linear regulator problem for the optimal control of the telescoping system is extended to consider the effects of measurement and plant noises. The noise uncertainties are included with an application of the estimator - Kalman filter problem. Different schemes for measuring the components of the angular velocity are considered. Analytical results are obtained for special cases, and numerical results are presented for the general case.

Wicked Problems in Special and Inclusive Education

ERIC Educational Resources Information Center

Armstrong, David

2017-01-01

This special paper provides a critical overview of wicked problems in special and inclusive education. Practically, this paper provides a strategic framework for future special issues in the "Journal of Special Educational Needs". Critical attention is also given to the concept of a wicked problem when applied to research in special and…

POEMS in Newton's Aerodynamic Frustum

ERIC Educational Resources Information Center

Sampedro, Jaime Cruz; Tetlalmatzi-Montiel, Margarita

2010-01-01

The golden mean is often naively seen as a sign of optimal beauty but rarely does it arise as the solution of a true optimization problem. In this article we present such a problem, demonstrating a close relationship between the golden mean and a special case of Newton's aerodynamical problem for the frustum of a cone. Then, we exhibit a parallel…

Hierarchical and non-hierarchical {lambda} elements for one dimensional problems with unknown strength of singularity

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wong, K.K.; Surana, K.S.

1996-10-01

This paper presents a new and general procedure for designing hierarchical and non-hierarchical special elements called {lambda} elements for one dimensional singular problems where the strength of the singularity is unknown. The {lambda} element formulations presented here permit correct numerical simulation of linear as well as non-linear singular problems without a priori knowledge of the strength of the singularity. A procedure is also presented for determining the exact strength of the singularity using the converged solution. It is shown that in special instances, the general formulation of {lambda} elements can also be made hierarchical. The {lambda} elements presented here aremore » of type C{sup 0} and provide C{sup 0} inter-element continuity with p-version elements. One dimensional steady state radial flow of an upper convected Maxwell fluid is considered as a sample problem. Since in this case {lambda}{sub i} are known, this problem provides a good example for investigating the performance of the formulation proposed here. Least squares approach (or Least Squares Finite Element Formulation: LSFEF) is used to construct the integral form (error functional I) from the differential equations. Numerical studies are presented for radially inward flow of an upper convected Maxwell fluid with inner radius r{sub i} = .1 and .01 etc. and Deborah number De = 2.« less

Specialty functions singularity mechanics problems

NASA Technical Reports Server (NTRS)

Sarigul, Nesrin

1989-01-01

The focus is in the development of more accurate and efficient advanced methods for solution of singular problems encountered in mechanics. At present, finite element methods in conjunction with special functions, boolean sum and blending interpolations are being considered. In dealing with systems which contain a singularity, special finite elements are being formulated to be used in singular regions. Further, special transition elements are being formulated to couple the special element to the mesh that models the rest of the system, and to be used in conjunction with 1-D, 2-D and 3-D elements within the same mesh. Computational simulation with a least squares fit is being utilized to construct special elements, if there is an unknown singularity in the system. A novel approach is taken in formulation of the elements in that: (1) the material properties are modified to include time, temperature, coordinate and stress dependant behavior within the element; (2) material properties vary at nodal points of the elements; (3) a hidden-symbolic computation scheme is developed and utilized in formulating the elements; and (4) special functions and boolean sum are utilized in order to interpolate the field variables and their derivatives along the boundary of the elements. It may be noted that the proposed methods are also applicable to fluids and coupled problems.

Ninth Annual Distinguished Lecture Series in Special Education and Rehabilitation. Summer Session, 1970.

ERIC Educational Resources Information Center

Williams, Eddie H., Ed.; And Others

Six papers on special education and rehabilitation are presented. In discussing games people play with programs for the educable mentally handicapped, C. E. Meyers focuses on problems of appropriate reconceptualizing programs for slow learners, resulting from court orders to cease and desist certain practices. Harry A. Grace examines management…

Predictors of Sociometric Status for Low Socioeconomic Status Elementary Mainstreamed Students with and without Special Needs

ERIC Educational Resources Information Center

Baydik, Berrin; Bakkaloglu, Hatice

2009-01-01

The purpose of the present study is to compare the sociometric status of low socioeconomic status elementary school students with and without special needs and investigate the effects of different variables (gender, age, physical appearance, social skills, behavior problems, and academic competence) on students' sociometric status. Elementary…

Peer Victimization and Social-Emotional Functioning: A Longitudinal Comparison of Students in General and Special Education

ERIC Educational Resources Information Center

O'Brennan, Lindsey M.; Waasdorp, Tracy E.; Pas, Elise T.; Bradshaw, Catherine P.

2015-01-01

The present longitudinal study used a social-ecological framework to explore the extent to which peer victimization and aggression were associated with changes in concentration problems and emotion regulation among elementary students in general versus special education, while accounting for student demographics and school contextual factors. Data…

Special Report on Dental Care for Handicapped People.

ERIC Educational Resources Information Center

Rehabilitation Services Administration (DHEW), Washington, DC.

The document presents a Department of Health, Education and Welfare (HEW) special report on dental care for the handicapped. The nature and extent of the problem of providing dental services to the handicapped population is examined. The handicapped population is defined and their oral health status reviewed. Factors contributing to the poor oral…

Load research manual. Volume 3: Load research for advanced technologies

NASA Astrophysics Data System (ADS)

1980-11-01

Technical guidelines for electric utility load research are presented. Special attention is given to issues raised by the load reporting requirements of the Public Utility Regulatory Policies Act of 1978 and to problems faced by smaller utilities that are initiating load research programs. The manual includes guides to load research literature and glossaries of load research and statistical terms. Special load research procedures are presented for solar, wind, and cogeneration technologies.

Some socio-economic factors affecting infant and child mortality with special reference to Indonesia.

PubMed

Kristanto, B

1983-06-01

A review of the literature on the socioeconomic factors affecting infant and child mortality is presented, with special reference to Indonesia. Four main factors are identified: parents' education, parents' occupation, urban-rural residence, and housing conditions. The author suggests that, in fact, problems related to health and sanitation are the main causes of infant and child mortality. Also important are problems related to poverty, income, and income distribution. It is suggested that the solution is to be found in general socioeconomic development.

On Profit-Maximizing Pricing for the Highway and Tollbooth Problems

NASA Astrophysics Data System (ADS)

Elbassioni, Khaled; Raman, Rajiv; Ray, Saurabh; Sitters, René

In the tollbooth problem on trees, we are given a tree T= (V,E) with n edges, and a set of m customers, each of whom is interested in purchasing a path on the graph. Each customer has a fixed budget, and the objective is to price the edges of T such that the total revenue made by selling the paths to the customers that can afford them is maximized. An important special case of this problem, known as the highway problem, is when T is restricted to be a line. For the tollbooth problem, we present an O(logn)-approximation, improving on the current best O(logm)-approximation. We also study a special case of the tollbooth problem, when all the paths that customers are interested in purchasing go towards a fixed root of T. In this case, we present an algorithm that returns a (1 - ɛ)-approximation, for any ɛ> 0, and runs in quasi-polynomial time. On the other hand, we rule out the existence of an FPTAS by showing that even for the line case, the problem is strongly NP-hard. Finally, we show that in the discount model, when we allow some items to be priced below zero to improve the overall profit, the problem becomes even APX-hard.

The Effect of Conjoint Behavioral Consultation Program Related Teaching on Problem Behavior and Communication/Social Skills with a Blind and Autistic Child

ERIC Educational Resources Information Center

Kahveci, Gül; Ataman, Aysegül

2017-01-01

Individuals with disabilities display problem behaviors frequently. This case study presents an analysis of the extent to which one student's pattern of multiple problem behaviors and the potential efficacy of Conjoint Behavioral Consultation (CBC) as a model for linking families, schools, and special education settings to address educational…

School Learning Materials on Water Problems of New Mexico and the Southwest.

ERIC Educational Resources Information Center

Buethe, Chris; And Others

Schools typically make no special efforts to prepare students to cope with present and anticipated water problems. Using this as a premise, the objective of this study was to prepare a set of mediated learning packages based upon water problems of New Mexico and the dry regions of the Southwest. These learning materials were prepared and field…

Special Theory of Relativity in South Korean High School Textbooks and New Teaching Guidelines

ERIC Educational Resources Information Center

Gim, Jinyeong

2016-01-01

South Korean high school students are being taught Einstein's Special Theory of Relativity. In this article, I examine the portrayal of this theory in South Korean high school physics textbooks and discuss an alternative method used to solve the analyzed problems. This examination of how these South Korean textbooks present this theory has…

A collocation-shooting method for solving fractional boundary value problems

NASA Astrophysics Data System (ADS)

Al-Mdallal, Qasem M.; Syam, Muhammed I.; Anwar, M. N.

2010-12-01

In this paper, we discuss the numerical solution of special class of fractional boundary value problems of order 2. The method of solution is based on a conjugating collocation and spline analysis combined with shooting method. A theoretical analysis about the existence and uniqueness of exact solution for the present class is proven. Two examples involving Bagley-Torvik equation subject to boundary conditions are also presented; numerical results illustrate the accuracy of the present scheme.

Psychotherapy of the child with true brain damage.

PubMed

Christ, Adolph E

1978-07-01

Psychotherapy of the child with true brain damage presents special problems and requires special approaches. Those who are cognitively primitive--at the sensorimotor or preoperational stage of development--require a crisis approach; those at the concrete or formal operational stage can be treated with a modified insight-oriented approach. Development of a therapeutic alliance, establishment of workable defense mechanisms, identification and clarification of unalterable cognitive defects and issues of termination unique to this special population are discussed.

Tisserand's polynomials and inclination functions in the theory of artificial earth satellites

NASA Astrophysics Data System (ADS)

Aksenov, E. P.

1986-03-01

The connection between Tisserand's polynomials and inclination functions in the theory of motion of artificial earth satellites is established in the paper. The most important properties of these special functions of celestial mechanics are presented. The problem of expanding the perturbation function in satellite problems is discussed.

Special Problems and Procedures for Identifying Minority Gifted Students.

ERIC Educational Resources Information Center

Bernal, Ernest M.

The author reviews the key problems associated with generally accepted practices for identifying the gifted from the perspective of minority gifted students, particularly the gifted bilingual child; and presents some alternative approaches for testing. Noted among the shortcomings of testing minority students are that standardized tests are not…

Use of various versions of Schwarz method for solving the problem of contact interaction of elastic bodies

NASA Astrophysics Data System (ADS)

Galanin, M. P.; Lukin, V. V.; Rodin, A. S.

2018-04-01

A definition of a sufficiently common problem of mechanical contact interaction in a system of elastic bodies is given. Various versions of realization of the Schwarz method for solving the contact problem numerically are described and the results of solution of a number of problems are presented. Special attention is paid to calculations where the grids in the bodies significantly differ in steps.

The 3D elliptic restricted three-body problem: periodic orbits which bifurcate from limiting restricted problems. Complex instability

NASA Astrophysics Data System (ADS)

Ollé, Mercè; Pacha, Joan R.

1999-11-01

In the present work we use certain isolated symmetric periodic orbits found in some limiting Restricted Three-Body Problems to obtain, by numerical continuation, families of symmetric periodic orbits of the more general Spatial Elliptic Restricted Three Body Problem. In particular, the Planar Isosceles Restricted Three Body Problem, the Sitnikov Problem and the MacMillan problem are considered. A stability study for the periodic orbits of the families obtained - specially focused to detect transitions to complex instability - is also made.

Generalized vector calculus on convex domain

NASA Astrophysics Data System (ADS)

Agrawal, Om P.; Xu, Yufeng

2015-06-01

In this paper, we apply recently proposed generalized integral and differential operators to develop generalized vector calculus and generalized variational calculus for problems defined over a convex domain. In particular, we present some generalization of Green's and Gauss divergence theorems involving some new operators, and apply these theorems to generalized variational calculus. For fractional power kernels, the formulation leads to fractional vector calculus and fractional variational calculus for problems defined over a convex domain. In special cases, when certain parameters take integer values, we obtain formulations for integer order problems. Two examples are presented to demonstrate applications of the generalized variational calculus which utilize the generalized vector calculus developed in the paper. The first example leads to a generalized partial differential equation and the second example leads to a generalized eigenvalue problem, both in two dimensional convex domains. We solve the generalized partial differential equation by using polynomial approximation. A special case of the second example is a generalized isoperimetric problem. We find an approximate solution to this problem. Many physical problems containing integer order integrals and derivatives are defined over arbitrary domains. We speculate that future problems containing fractional and generalized integrals and derivatives in fractional mechanics will be defined over arbitrary domains, and therefore, a general variational calculus incorporating a general vector calculus will be needed for these problems. This research is our first attempt in that direction.

Steps Toward Effective Production of Speech (STEPS): No. 4--General Information for Parents of a Deaf-Blind Child.

ERIC Educational Resources Information Center

Sheeley, Eugene C.; McQuiddy, Doris

The booklet, one of a series of guides developed by Project STEPS (Steps Toward Effective Production of Speech), presents information for parents and deaf-blind children. Total deafness and blindness and the problems of deafness and blindness are considered, as are the nature of deaf-blindness and its special problems (e.g., eating problems,…

Divergent conservation laws in hyperbolic thermoelasticity

NASA Astrophysics Data System (ADS)

Murashkin, E. V.; Radayev, Y. N.

2018-05-01

The present study is devoted to the problem of formulation of conservation laws in divergent form for hyperbolic thermoelastic continua. The field formalism is applied to study the problem. A natural density of thermoelastic action and the corresponding variational least action principle are formulated. A special form of the first variation of the action is employed to obtain 4-covariant divergent conservation laws. Differential field equations and constitutive laws are derived from a special form of the first variation of the action integral. The objectivity of constitutive equations is provided by the rotationally invariant forms of the Lagrangian employed.

Load research manual. Volume 3. Load research for advanced technologies

DOE Office of Scientific and Technical Information (OSTI.GOV)

Brandenburg, L.; Clarkson, G.; Grund, Jr., C.

1980-11-01

This three-volume manual presents technical guidelines for electric utility load research. Special attention is given to issues raised by the load data reporting requirements of the Public Utility Regulatory Policies Act of 1978 and to problems faced by smaller utilities that are initiating load research programs. The manual includes guides to load research literature and glossaries of load research and statistical terms. In Volume 3, special load research procedures are presented for solar, wind, and cogeneration technologies.

An Educational Multimedia Presentation on the Introduction to Spacecraft Charging

NASA Technical Reports Server (NTRS)

Lin, E.; dePayrebrune, M.

2004-01-01

Over the last few decades, significant knowledge has been gained in how to protect spacecraft from charging; however, the continuing technical advancement in the design and build of satellites requires on-going effort in the study of spacecraft charging. A situation that we have encountered is that not all satellite designers and builders are familiar with the problem of spacecraft charging. The design of a satellite involves many talented people with diverse backgrounds, ranging from manufacturing and assembly to engineering and program management. The complex design and build of a satellite system requires people with highly specialized skills such that cross-specialization is often not achievable. As a result, designers and builders of satellites are not usually familiar with the problems outside their specialization. This is also true for spacecraft charging. Not everyone is familiar with the definition of spacecraft charging and the damage that spacecraft charging can cause. Understanding the problem is an important first step in getting everyone involved in addressing the appropriate spacecraft charging issues during the satellite design and build phases. To address this important first step, an educational multimedia presentation has been created to inform the general engineering community about the basics of spacecraft charging. The content of this educational presentation is based on relevant published technical papers. The presentation was developed using Macromedia Flash. This software produces a more dynamic learning environment than a typical slide show , resulting in a more effective learning experience. The end result is that the viewer will have learned about the basics of spacecraft charging. This presentation is available to the public through our website, www.dplscience.com, free of charge. Viewers are encouraged to pass this presentation to colleagues within their own work environment. This paper describes the content of the multimedia presentation.

Talk aloud problem solving: Exploration of acquisition and frequency building in science text

NASA Astrophysics Data System (ADS)

Dembek, Ginny

Discovering new ways to help students attain higher levels of scientific knowledge and to think critically is a national goal (Educate to Innovate campaign). Despite the best intentions, many students struggle to achieve a basic level of science knowledge (NAEP, 2011). The present study examined Talk Aloud Pair Problem Solving and frequency building with five students who were diagnosed with a disability and receive specialized reading instruction in a special education setting. Acquisition was obtained through scripted lessons and frequency building or practice strengthened the student's verbal repertoire making the problem solving process a durable behavior. Overall, students all demonstrated improvements in problem solving performance when compared to baseline. Students became more significantly accurate in performance and maintenance in learning was demonstrated. Generalization probes indicated improvement in student performance. Implications for practice and future research are discussed.

Doing More with Less: Innovative Program Building in ABA and Special Education in a Rural Setting

ERIC Educational Resources Information Center

Bethune, Keri S.; Kiser, Ansley

2017-01-01

There is a need for both special education teachers and Board Certified Behavior Analysts (BCBAs) who are trained to work in rural school settings with students with disabilities and problem behaviors. The specific challenges presented by rural communities, such as diminished access to resources and fewer community partners, can make it difficult…

Latent Class Analysis of Conduct Problems of Elementary Students Receiving Special Education Services

ERIC Educational Resources Information Center

Toupin, Jean; Déry, Michèle; Verlaan, Pierrette; Lemelin, Jean-Pascal; Lecocq, Aurélie; Jagiellowicz, Jadwiga

2016-01-01

Students with conduct problems (CPs) may present heterogeneity in terms of behavioral manifestations and service needs. Previous studies using Latent Class Analysis (LCA) to capture this heterogeneity have been conducted mostly with community samples and have often applied a narrow definition of CP. Considering this context, this study…

A collection of edge-based elements

NASA Technical Reports Server (NTRS)

Kempel, Leo C.; Volakis, John L.

1992-01-01

Edge-based elements have proved useful in solving electromagnetic problems since they are nondivergent. Previous authors have presented several two and three dimensional elements. Herein, we present four types of elements which are suitable for modeling several types of three dimensional geometries. Distorted brick and triangular prism elements are given in cartesian coordinates as well as the specialized cylindrical shell and pie-shaped prism elements which are suitable for problems best described in polar cylindrical coordinates.

Extreme values and the level-crossing problem: An application to the Feller process

NASA Astrophysics Data System (ADS)

Masoliver, Jaume

2014-04-01

We review the question of the extreme values attained by a random process. We relate it to level crossings to one boundary (first-passage problems) as well as to two boundaries (escape problems). The extremes studied are the maximum, the minimum, the maximum absolute value, and the range or span. We specialize in diffusion processes and present detailed results for the Wiener and Feller processes.

[Reproduction and psyche].

PubMed

Rohde, Anke

2007-01-01

Mental health and mental disorders can have a close connection to reproduction, especially for women but also for men. The most frequent disorders or problems are described, i.e., mental problems during pregnancy and after delivery, during the menstrual cycle and around menopause. Possible consequences of miscarriage, stillbirth and induced abortion are presented as well as the special problem of a wish for a child in mentally ill women and their treatment during pregnancy.

Drafting. Competency Based Curriculum.

ERIC Educational Resources Information Center

Everly, Al; And Others

This competency based drafting curriculum is presented in seven specialization sections with units in each section containing a competency statement, performance objective, learning activities, evaluation, and quiz or problem sheets. Some units also contain answer sheets and/or handout sheets. Sections and number of units presented are (1) basic…

IFLA General Conference, 1986. Pre-Session Seminar on Special Libraries and Their Role in National Development. Papers.

ERIC Educational Resources Information Center

International Federation of Library Associations and Institutions, The Hague (Netherlands).

A seminar on special libraries and their role in national development was held as a pre-session before the IFLA conference in 1986. Papers presented include: (1) "On the Problem of Document Delivery in the Field of Science and Technology in Asia" (Daxun He, People's Republic of China); (2) "The Planning and Development of Special…

[Adoption in China of children with special needs: the "green passage"].

PubMed

Oliván Gonzalvo, G

2007-10-01

Requests of international adoption in China can be processed by the ordinary way and by the so-called way "green passage" (GP). All the children for adoption by the GP have special needs because to suffer from congenital malformations, chronic diseases or development disabilities that will need medical or surgical treatment and a specialized monitoring in the adoptive country. The medical literature warns that the preadoptive medical records from China do not offer absolute guarantee of veracity. This problem has been observed in adoptions by the ordinary way of children diagnosed like healthy, but also it can happen in children for adoption by the GP. The clinical cases of three children with special needs recently assigned to Spanish families are presented. We think that in all the assignations of children with special needs from China, the Adoption Organizations must offer to the families the complete medical records, the certified results of the laboratory tests and the pictures so that, of exclusive and absolutely confidential manner, they consult with specialized doctors in order to obtain the highest information of the health problems and to value the medical prognosis before taking a decision on the acceptance of the adoption.

Elasto visco-plastic flow with special attention to boundary conditions

NASA Technical Reports Server (NTRS)

Shimazaki, Y.; Thompson, E. G.

1981-01-01

A simple but nontrivial steady-state creeping elasto visco-plastic (Maxwell fluid) radial flow problem is analyzed, with special attention given to the effects of the boundary conditions. Solutions are obtained through integration of a governing equation on stress using the Runge-Kutta method for initial value problems and finite differences for boundary value problems. A more general approach through the finite element method, an approach that solves for the velocity field rather than the stress field and that is applicable to a wide range of problems, is presented and tested using the radial flow example. It is found that steady-state flows of elasto visco-plastic materials are strongly influenced by the state of stress of material as it enters the region of interest. The importance of this boundary or initial condition in analyses involving materials coming into control volumes from unusual stress environments is emphasized.

CALL FOR PAPERS: Special issue on the random search problem: trends and perspectives

NASA Astrophysics Data System (ADS)

da Luz, Marcos G. E.; Grosberg, Alexander Y.; Raposo, Ernesto P.; Viswanathan, Gandhi M.

2008-11-01

This is a call for contributions to a special issue of Journal of Physics A: Mathematical and Theoretical dedicated to the subject of the random search problem. The motivation behind this special issue is to summarize in a single comprehensive publication, the main aspects (past and present), latest developments, different viewpoints and the directions being followed in this multidisciplinary field. We hope that such a special issue could become a particularly valuable reference for the broad scientific community working with the general random search problem. The Editorial Board has invited Marcos G E da Luz, Alexander Y Grosberg, Ernesto P Raposo and Gandhi M Viswanathan to serve as Guest Editors for the special issue. The general question of how to optimize the search for specific target objects in either continuous or discrete environments when the information available is limited is of significant importance in a broad range of fields. Representative examples include ecology (animal foraging, dispersion of populations), geology (oil recovery from mature reservoirs), information theory (automated researchers of registers in high-capacity database), molecular biology (proteins searching for their sites, e.g., on DNA ), etc. One reason underlying the richness of the random search problem relates to the `ignorance' of the locations of the randomly located `targets'. A statistical approach to the search problem can deal adequately with incomplete information and so stochastic strategies become advantageous. The general problem of how to search efficiently for randomly located target sites can thus be quantitatively described using the concepts and methods of statistical physics and stochastic processes. Scope Thus far, to the best of our knowledge, no recent textbook or review article in a physics journal has appeared on this topic. This makes a special issue with review and research articles attractive to those interested in acquiring a general introduction to the field. The subject can be approached from the perspective of different fields: ecology, networks, transport problems, molecular biology, etc. The study of the problem is particularly suited to the concepts and methods of statistical physics and stochastic processes; for example, fractals, random walks, anomalous diffusion. Discrete landscapes can be approached via graph theory, random lattices and complex networks. Such topics are regularly discussed in Journal of Physics A: Mathematical and Theoretical. All such aspects of the problem fall within the scope and focus of this special issue on the random search problem: trends and perspectives. Editorial policy All contributions to the special issue will be refereed in accordance with the refereeing policy of the journal. In particular, all research papers will be expected to be original work reporting substantial new results. The issue will also contain a number of review articles by invitation only. The Guest Editors reserve the right to judge whether a contribution fits the scope of the special issue. Guidelines for preparation of contributions We aim to publish the special issue in August 2009. To realize this, the DEADLINE for contributed papers is 15 January 2009. There is a page limit of 15 printed pages (approximately 9000 words) per contribution. For papers exceeding this limit, the Guest Editors reserve the right to request a reduction in length. Further advice on document preparation can be found at www.iop.org/Journals/jphysa. Contributions to the special issue should if possible be submitted electronically by web upload at www.iop.org/Journals/jphysa, or by email to jphysa@iop.org, quoting 'J. Phys. A Special Issue— Random Search Problem'. Please state whether the paper has been invited or is contributed. Submissions should ideally be in standard LaTeX form. Please see the website for further information on electronic submissions. Authors unable to submit electronically may send hard-copy contributions to: Publishing Administrators, Journal of Physics A, Institute of Physics Publishing, Dirac House, Temple Back, Bristol BS1 6BE, UK, enclosing electronic code on CD if available and quoting 'J. Phys. A Special Issue—Random Search Problem'. All contributions should be accompanied by a read-me file or covering letter giving the postal and e-mail addresses for correspondence. The Publishing Office should be notified of any subsequent change of address. This special issue will be published in the paper and online version of the journal. The corresponding author of each contribution will receive a complimentary copy of the issue.

Discrete-continuous variable structural synthesis using dual methods

NASA Technical Reports Server (NTRS)

Schmit, L. A.; Fleury, C.

1980-01-01

Approximation concepts and dual methods are extended to solve structural synthesis problems involving a mix of discrete and continuous sizing type of design variables. Pure discrete and pure continuous variable problems can be handled as special cases. The basic mathematical programming statement of the structural synthesis problem is converted into a sequence of explicit approximate primal problems of separable form. These problems are solved by constructing continuous explicit dual functions, which are maximized subject to simple nonnegativity constraints on the dual variables. A newly devised gradient projection type of algorithm called DUAL 1, which includes special features for handling dual function gradient discontinuities that arise from the discrete primal variables, is used to find the solution of each dual problem. Computational implementation is accomplished by incorporating the DUAL 1 algorithm into the ACCESS 3 program as a new optimizer option. The power of the method set forth is demonstrated by presenting numerical results for several example problems, including a pure discrete variable treatment of a metallic swept wing and a mixed discrete-continuous variable solution for a thin delta wing with fiber composite skins.

Multidomain, multirecord-type Datatrieve-11 databases

DOE Office of Scientific and Technical Information (OSTI.GOV)

Horning, R.R.

1983-01-01

Data bases consisting of multiple domains and multirecord-type domains present special problems in design, loading, maintenance, and report generation. The logical association of records is a fundamental concern in all these problem areas. This paper describes techniques for dealing with this and other specifics using Datatrieve-11, Sort-11, FORTRAN 77, and the RSX-11M Indirect Command File Processor.

Too Few Visits to the Dentist? The Impact on Children's Health.

ERIC Educational Resources Information Center

Shobo, Yetunde A.

Noting that although dental disease is preventable, dental decay is still the most common and costly oral health problem among children, this special Kids Count report presents information on oral health and the role of prevention and the problem of poor oral health in Arkansas. Included in the report is information on the obstacles in accessing…

[Expert assessment of hearing loss within the scope of the social compensation law and the law regarding severely handicapped patients].

PubMed

Plath, P

1992-10-01

Special problems are described concerning expert opinions on hearing disability and hearing loss with regard to the German Social Rights for Compensation and the laws for handicapped persons. In some aspects there are similarities to the rights of accident insurance, but disability programs question only the degree of handicap present and not the source of the hearing loss. The expert opinion on the subject's ability to work in his or any other profession must only determine the patient's ability to hear and the tasks needed to fulfill the profession. Special attention is given to the problems arising from tinnitus.

Scaling Up Coordinate Descent Algorithms for Large ℓ1 Regularization Problems

DOE Office of Scientific and Technical Information (OSTI.GOV)

Scherrer, Chad; Halappanavar, Mahantesh; Tewari, Ambuj

2012-07-03

We present a generic framework for parallel coordinate descent (CD) algorithms that has as special cases the original sequential algorithms of Cyclic CD and Stochastic CD, as well as the recent parallel Shotgun algorithm of Bradley et al. We introduce two novel parallel algorithms that are also special cases---Thread-Greedy CD and Coloring-Based CD---and give performance measurements for an OpenMP implementation of these.

Washington's Infant Toddler Early Intervention Program Study: Enrollment of Washington Children with Disabilities and Special Health Care Needs in Washington State Public Programs on December 1, 1995.

ERIC Educational Resources Information Center

Keenan, Trisha; And Others

This document presents tables, graphs, and narrative text providing information on the number and characteristics of infants and toddlers, under the age of 3, with disabilities and special health problems who were enrolled in Washington State's infant and toddler early intervention program in 1995. Major findings of the report include the…

Issues in Children's Mental Health. Special Report.

ERIC Educational Resources Information Center

Nimmo, Margaret L.

This Kids Count report examines issues related to children's mental health in Virginia. The report discusses the effects of children's mental illness, presents risk and protective factors, and describes the incidence of children's mental health problems. Information specific to Virginia is presented, including the prevalence of youth suicide,…

Organizing the Diagnostics of Multicultural Personality in College Students

ERIC Educational Resources Information Center

Begaliyeva, Saule; Issabekova, Gulnur; Saudabaeva, Gulmira; Zhanna, Axakalova; Abdildaev, Abdikhalyk Kosherbayuly

2016-01-01

The aim of present study is to reveal the actual state of multicultural personality development in college students, based on a specially selected diagnostic inventory. The problem of multicultural personality development on the level of present pedagogics development allows taking the leading methodologic theories and approaches as the bases.…

Group Activities for Mentally Retarded Children: A Symposium. Bulletin, 1933, No. 7

ERIC Educational Resources Information Center

Martens, Elise H., Comp.

1933-01-01

In every school system the education of mentally handicapped children presents serious problems. In the larger cities where such pupils may be gathered from the various classes in the school and placed in one room in charge of a specially prepared teacher, the problems are somewhat simplified. In the country schools where children cannot be so…

Aspects on Literacy: Selected Papers from the IRA World Congress on Reading (13th, Stockholm, Sweden, 1990). Linkoping Studies in Education and Psychology No. 34.

ERIC Educational Resources Information Center

Ericson, Britta, Ed.

This book offers eight papers presented by specially invited delegates. The papers and their authors are as follows: "Dyslexia and Its Consequences in the Life of Dyslexics" (Hanna Jaklewicz); "Visually Related Reading Problems--Diagnosis and Treatment" (Ivar Lie); "How to Prevent Vision Problems among Children in…

Alternative Assessment Techniques.

ERIC Educational Resources Information Center

Lowenthal, Barbara

1988-01-01

Maintaining the precision necessary for administering norm referenced tests can be a problem for the special education teacher who is trained to assist the student. Criterion-referenced tests, observations, and interviews are presented as effective alternative assessment techniques. (JDD)

Energy-modeled flight in a wind field

DOE Office of Scientific and Technical Information (OSTI.GOV)

Feldman, M.A.; Cliff, E.M.

Optimal shaping of aerospace trajectories has provided the motivation for much modern study of optimization theory and algorithms. Current industrial practice favors approaches where the continuous-time optimal control problem is transcribed to a finite-dimensional nonlinear programming problem (NLP) by a discretization process. Two such formulations are implemented in the POST and the OTIS codes. In the present paper we use a discretization that is specially adapted to the flight problem of interest. Among the unique aspects of the present discretization are: a least-squares formulation for certain kinematic constraints; the use of an energy ideas to enforce Newton`s Laws; and, themore » inclusion of large magnitude horizontal winds. In the next section we shall provide a description of the flight problem and its NLP representation. Following this we provide some details of the constraint formulation. Finally, we present an overview of the NLP problem.« less

Introduction to the Special Issue: Challenges and Solutions to Implementing Effective Reading Intervention in Schools.

PubMed

Foorman, Barbara

2016-12-01

This special issue focuses on challenges and solutions to implementing effective reading intervention in schools in the United States. Researchers often develop interventions that prove effective in efficacy studies but then show no impact when implemented at scale in public school settings. The authors of the intervention studies presented here describe a number of common implementation problems stemming from research in primary grades, middle grades, and high schools. Solutions to these implementation problems include establishing researcher-practitioner partnerships to address the systems-level challenges, suggestions for how to obtain buy-in from teachers, and recommendations for reforming preservice and in-service teacher education. © 2016 Wiley Periodicals, Inc.

Inverse problems with nonnegative and sparse solutions: algorithms and application to the phase retrieval problem

NASA Astrophysics Data System (ADS)

Quy Muoi, Pham; Nho Hào, Dinh; Sahoo, Sujit Kumar; Tang, Dongliang; Cong, Nguyen Huu; Dang, Cuong

2018-05-01

In this paper, we study a gradient-type method and a semismooth Newton method for minimization problems in regularizing inverse problems with nonnegative and sparse solutions. We propose a special penalty functional forcing the minimizers of regularized minimization problems to be nonnegative and sparse, and then we apply the proposed algorithms in a practical the problem. The strong convergence of the gradient-type method and the local superlinear convergence of the semismooth Newton method are proven. Then, we use these algorithms for the phase retrieval problem and illustrate their efficiency in numerical examples, particularly in the practical problem of optical imaging through scattering media where all the noises from experiment are presented.

Captive breeding of pangolins: current status, problems and future prospects.

PubMed

Hua, Liushuai; Gong, Shiping; Wang, Fumin; Li, Weiye; Ge, Yan; Li, Xiaonan; Hou, Fanghui

2015-01-01

Pangolins are unique placental mammals with eight species existing in the world, which have adapted to a highly specialized diet of ants and termites, and are of significance in the control of forest termite disaster. Besides their ecological value, pangolins are extremely important economic animals with the value as medicine and food. At present, illegal hunting and habitat destruction have drastically decreased the wild population of pangolins, pushing them to the edge of extinction. Captive breeding is an important way to protect these species, but because of pangolin's specialized behaviors and high dependence on natural ecosystem, there still exist many technical barriers to successful captive breeding programs. In this paper, based on the literatures and our practical experience, we reviewed the status and existing problems in captive breeding of pangolins, including four aspects, the naturalistic habitat, dietary husbandry, reproduction and disease control. Some recommendations are presented for effective captive breeding and protection of pangolins.

On the Application of the Energy Method to Stability Problems

NASA Technical Reports Server (NTRS)

Marguerre, Karl

1947-01-01

Since stability problems have come into the field of vision of engineers, energy methods have proved to be one of the most powerful aids in mastering them. For finding the especially interesting critical loads special procedures have evolved that depart somewhat from those customary in the usual elasticity theory. A clarification of the connections seemed desirable,especially with regard to the post-critical region, for the treatment of which these special methods are not suited as they are. The present investigation discusses this question-complex (made important by shell construction in aircraft) especially in the classical example of the Euler strut, because in this case - since the basic features are not hidden by difficulties of a mathematical nature - the problem is especially clear. The present treatment differs from that appearing in the Z.f.a.M.M. (1938) under the title "Uber die Behandlung von Stabilittatsproblemen mit Hilfe der energetischen Methode" in that, in order to work out the basic ideas still more clearly,it dispenses with the investigation of behavior at large deflections and of the elastic foundation;in its place the present version gives an elaboration of the 6th section and (in its 7 th and 8th secs.)a new example that shows the applicability of the general criterion to a stability problem that differs from that of Euler in many respects.

Special data base of Informational - Computational System 'INM RAS - Black Sea' for solving inverse and data assimilation problems

NASA Astrophysics Data System (ADS)

Zakharova, Natalia; Piskovatsky, Nicolay; Gusev, Anatoly

2014-05-01

Development of Informational-Computational Systems (ICS) for data assimilation procedures is one of multidisciplinary problems. To study and solve these problems one needs to apply modern results from different disciplines and recent developments in: mathematical modeling; theory of adjoint equations and optimal control; inverse problems; numerical methods theory; numerical algebra and scientific computing. The above problems are studied in the Institute of Numerical Mathematics of the Russian Academy of Science (INM RAS) in ICS for personal computers. In this work the results on the Special data base development for ICS "INM RAS - Black Sea" are presented. In the presentation the input information for ICS is discussed, some special data processing procedures are described. In this work the results of forecast using ICS "INM RAS - Black Sea" with operational observation data assimilation are presented. This study was supported by the Russian Foundation for Basic Research (project No 13-01-00753) and by Presidium Program of Russian Academy of Sciences (project P-23 "Black sea as an imitational ocean model"). References 1. V.I. Agoshkov, M.V. Assovskii, S.A. Lebedev, Numerical simulation of Black Sea hydrothermodynamics taking into account tide-forming forces. Russ. J. Numer. Anal. Math. Modelling (2012) 27, No.1, pp. 5-31. 2. E.I. Parmuzin, V.I. Agoshkov, Numerical solution of the variational assimilation problem for sea surface temperature in the model of the Black Sea dynamics. Russ. J. Numer. Anal. Math. Modelling (2012) 27, No.1, pp. 69-94. 3. V.B. Zalesny, N.A. Diansky, V.V. Fomin, S.N. Moshonkin, S.G. Demyshev, Numerical model of the circulation of Black Sea and Sea of Azov. Russ. J. Numer. Anal. Math. Modelling (2012) 27, No.1, pp. 95-111. 4. Agoshkov V.I.,Assovsky M.B., Giniatulin S. V., Zakharova N.B., Kuimov G.V., Parmuzin E.I., Fomin V.V. Informational Computational system of variational assimilation of observation data "INM RAS - Black sea"// Ecological safety of coastal and shelf zones and complex use of shelf resources: Collection of scientific works. Issue 26, Volume 2. - National Academy of Sciences of Ukraine, Marine Hydrophysical Institute, Sebastopol, 2012. Pages 352-360. (In russian)

Music Training in Germany.

ERIC Educational Resources Information Center

Tapia, Ivan, Ed.

1994-01-01

This special-issue volume examines music education in the two Germanies and how music has had a great influence in the culture of the nations. The presentation is a professional and objective portrayal of music training and cultivation in Germany in the last decade of the present century. The articles attempt to outline the problems and tasks that…

The Response of Vocational Education to the National Energy Crisis. A Special Report.

ERIC Educational Resources Information Center

National Advisory Council on Vocational Education, Washington, DC.

Rationale and recommendations are presented for vocational education's response to the national energy crisis in light of present involvement and future needs. The problem is stated in terms of the need for training programs in the newer energy technologies, including those related to conservation. Federal policies are outlined, specifically the…

Bullying: Description and Analysis of the Phenomenon

ERIC Educational Resources Information Center

Benitez, Juan Luis; Justicia, Fernando

2006-01-01

This article purports to present this Special Issue about Bullying and, at the same time, to introduce the phenomenon of bullying in order to facilitate readers an updated vision about the problem that will be worked from different perspectives by researchers from national and international scope. With this purpose, we present some controversial…

Measurement and quantum indeterminateness

NASA Astrophysics Data System (ADS)

Healey, Richard

1993-08-01

Albert and Loewer[1] have recently clarified their earlier objection to the interactive interpretation presented in Healey[2]. They now charge that this interpretation fails to solve a problem of which the measurement problem is but a special case. The general problem is to reconcile quantum mechanics with the prima facie determinateness of such dynamical properties as the positions of macroscopic objects. In response I defend both the preeminent significance of determinate measurement outcomes and the claim that the models of Healey[3] go a long way toward securing their determinateness.

On unified modeling, theory, and method for solving multi-scale global optimization problems

NASA Astrophysics Data System (ADS)

Gao, David Yang

2016-10-01

A unified model is proposed for general optimization problems in multi-scale complex systems. Based on this model and necessary assumptions in physics, the canonical duality theory is presented in a precise way to include traditional duality theories and popular methods as special applications. Two conjectures on NP-hardness are proposed, which should play important roles for correctly understanding and efficiently solving challenging real-world problems. Applications are illustrated for both nonconvex continuous optimization and mixed integer nonlinear programming.

Development of OCR system for portable passport and visa reader

NASA Astrophysics Data System (ADS)

Visilter, Yury V.; Zheltov, Sergey Y.; Lukin, Anton A.

1999-01-01

The modern passport and visa documents include special machine-readable zones satisfied the ICAO standards. This allows to develop the special passport and visa automatic readers. However, there are some special problems in such OCR systems: low resolution of character images captured by CCD-camera (down to 150 dpi), essential shifts and slopes (up to 10 degrees), rich paper texture under the character symbols, non-homogeneous illumination. This paper presents the structure and some special aspects of OCR system for portable passport and visa reader. In our approach the binarization procedure is performed after the segmentation step, and it is applied to the each character site separately. Character recognition procedure uses the structural information of machine-readable zone. Special algorithms are developed for machine-readable zone extraction and character segmentation.

[Community coordination of dental care needs in a home medical care support ward and at home].

PubMed

Sumi, Yasunori; Ozawa, Nobuyoshi; Miura, Hiroko; Miura, Hisayuki; Toba, Kenji

2011-01-01

The purpose of this study was to ascertain the current statuses and problems of dental home care patients by surveying the oral care status and needs of patients in the home medical care support ward at the National Center for Geriatrics and Gerontology. Patients that required continuous oral management even after discharge from the hospital were referred to local dental clinics to receive home dental care. We investigated the suitability and problems associated with such care, and identified the dental care needs of home patients and the status of local care coordination, including those in hospitals. The subjects were 82 patients. We ascertained their general condition and oral status, and also investigated the problems associated with patients judged to need specialized oral care by a dentist during oral treatment. Patients who required continuous specialized oral care after discharge from hospital were referred to dental clinics that could provide regular care, and the problems at the time of referral were identified. Dry mouth was reported by many patients. A large number of patients also needed specialized dental treatment such as the removal of dental calculus or tooth extraction. Problems were seen in oral function, with 38 of the patients (46%) unable to gargle and 23 (28%) unable to hold their mouths open. About half of the patients also had dementia, and communication with these patients was difficult. Of the 43 patients who were judged to need continuing oral care after discharge from hospital, their referral to a dental clinic for regular care was successful for 22 (51%) patients and unsuccessful for 21 (49%) patients. The reasons for unsuccessful referrals included the fact that the family, patient, nurse, or caregiver did not understand the need for specialized oral care. The present results suggest the need for specialized oral treatment in home medical care. These findings also suggest that coordinating seamless dental care among primary physicians, intermediates, and transferring care after hospital discharge to regular dentists is difficult.

Proposal of the School Children Support System Using ICF to Communicate with the Teachers, the Specialists and the Guardians, Requiring Special Support Education

NASA Astrophysics Data System (ADS)

Ogoshi, Yasuhiro; Nakai, Akio; Mitsuhashi, Yoshinori; Araki, Chikahiro

At the present, educational support is required to the school children who confronts problems on study, life style, mental and health. For the school children who hold these problems, inference and understanding of those around adults are mandatory, for that intimate cooperation between the school, home and specialized agencies should be important. With above reason, the school children support system using ICF to communicate the school, the specialist and the guardian is developed in this works. Realization of this system, immediate support to the school children and their guardians will be possible. It is also considered to be a preventive support instead of an allopathic support.

Numerical calculations of turbulent swirling flow

NASA Technical Reports Server (NTRS)

Kubo, I.; Gouldin, F. C.

1974-01-01

Description of a numerical technique for solving axisymmetric, incompressible, turbulent swirling flow problems. Isothermal flow calculations are presented for a coaxial flow configuration of special interest. The calculation results are discussed in regard to their implications for the design of gas turbine combustors.

Environmental Applications of Interfacial Materials with Special Wettability

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wang, Zhangxin; Elimelech, Menachem; Lin, Shihong

Interfacial materials with special wettability have become a burgeoning research area in materials science in the past decade. The unique surface properties of materials and interfaces generated by biomimetic approaches can be leveraged to develop effective solutions to challenging environmental problems. This critical review presents the concept, mechanisms, and fabrication techniques of interfacial materials with special wettability, and assesses the environmental applications of these materials for oil-water separation, membrane-based water purification and desalination, biofouling control, high performance vapor condensation, and atmospheric water collection. We also highlight the most promising properties of interfacial materials with special wettability that enable innovative environmentalmore » applications and discuss the practical challenges for large-scale implementation of these novel materials.« less

Environmental Applications of Interfacial Materials with Special Wettability

DOE PAGES

Wang, Zhangxin; Elimelech, Menachem; Lin, Shihong

2016-02-01

Interfacial materials with special wettability have become a burgeoning research area in materials science in the past decade. The unique surface properties of materials and interfaces generated by biomimetic approaches can be leveraged to develop effective solutions to challenging environmental problems. This critical review presents the concept, mechanisms, and fabrication techniques of interfacial materials with special wettability, and assesses the environmental applications of these materials for oil-water separation, membrane-based water purification and desalination, biofouling control, high performance vapor condensation, and atmospheric water collection. We also highlight the most promising properties of interfacial materials with special wettability that enable innovative environmentalmore » applications and discuss the practical challenges for large-scale implementation of these novel materials.« less

On r-circulant matrices with Fibonacci and Lucas numbers having arithmetic indices

NASA Astrophysics Data System (ADS)

Bueno, Aldous Cesar F.

2017-11-01

We investigate r-circulant matrices whose entries are Fibonacci and Lucas numbers having arithmetic indices. We then solve for the eigenvalues, determinant, Euclidean norm and the bounds for the spectral norm of the matrices. We also present some special cases and some results on identities and divisibility. Lastly, we present an open problem.

A Report on Traffic Safety and Montana's Children. 1999 Montana Special Report No. 1.

ERIC Educational Resources Information Center

Healthy Mothers, Healthy Babies--The Montana Coalition, Helena.

This brief Kids Count report looks at major problems, available data, and some solutions for Montana's children as passengers in and drivers of vehicles on Montana's roads and highways. The report also presents information about adults' roles and responsibilities for preventing traffic accidents and protecting children. Facts presented in the…

An Image of the Whole: Knowledge and Curriculum in an Age of Fragmentation. Proceedings of a Series of Symposia.

ERIC Educational Resources Information Center

Higginson, William, Ed.

This document presents papers delivered at a symposium held to discuss the problems associated with excessive specialization in contemporary education and of ways of counterbalancing this trend. Papers were presented in the areas of mathematics, fine arts, science, literature, philosophy, psychology, social sciences, and integrative education. (SL)

Bioethics in Russia.

PubMed

Tishchenko, P D

2005-01-01

Ten years of development in Russian bioethics presents significant progress. At the beginning of the 90s bioethics was practically unknown for Russian medical doctors, philosophers and the public. Since the year 2000 bioethics has become an obligatory course for all medical students. The Russian Orthodox Church published the same year "The Social Doctrine" that included a special part "The Church and Problems of Bioethics." Different bioethical problems are often discussed in the mass media. The development of Russian bioethics proves the basic understanding of ethics presented by John Dewey--ethics is a function of the moral life of the community. Norms are good or bad mostly as instruments that could be used in everyday life to solve real problems people meet.

Numerical research of the optimal control problem in the semi-Markov inventory model

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gorshenin, Andrey K.; Belousov, Vasily V.; Shnourkoff, Peter V.

2015-03-10

This paper is devoted to the numerical simulation of stochastic system for inventory management products using controlled semi-Markov process. The results of a special software for the system’s research and finding the optimal control are presented.

Bilinear Inverse Problems: Theory, Algorithms, and Applications

NASA Astrophysics Data System (ADS)

Ling, Shuyang

We will discuss how several important real-world signal processing problems, such as self-calibration and blind deconvolution, can be modeled as bilinear inverse problems and solved by convex and nonconvex optimization approaches. In Chapter 2, we bring together three seemingly unrelated concepts, self-calibration, compressive sensing and biconvex optimization. We show how several self-calibration problems can be treated efficiently within the framework of biconvex compressive sensing via a new method called SparseLift. More specifically, we consider a linear system of equations y = DAx, where the diagonal matrix D (which models the calibration error) is unknown and x is an unknown sparse signal. By "lifting" this biconvex inverse problem and exploiting sparsity in this model, we derive explicit theoretical guarantees under which both x and D can be recovered exactly, robustly, and numerically efficiently. In Chapter 3, we study the question of the joint blind deconvolution and blind demixing, i.e., extracting a sequence of functions [special characters omitted] from observing only the sum of their convolutions [special characters omitted]. In particular, for the special case s = 1, it becomes the well-known blind deconvolution problem. We present a non-convex algorithm which guarantees exact recovery under conditions that are competitive with convex optimization methods, with the additional advantage of being computationally much more efficient. We discuss several applications of the proposed framework in image processing and wireless communications in connection with the Internet-of-Things. In Chapter 4, we consider three different self-calibration models of practical relevance. We show how their corresponding bilinear inverse problems can be solved by both the simple linear least squares approach and the SVD-based approach. As a consequence, the proposed algorithms are numerically extremely efficient, thus allowing for real-time deployment. Explicit theoretical guarantees and stability theory are derived and the number of sampling complexity is nearly optimal (up to a poly-log factor). Applications in imaging sciences and signal processing are discussed and numerical simulations are presented to demonstrate the effectiveness and efficiency of our approach.

Black-hole production at LHC: Special features, problems, and expectations

DOE Office of Scientific and Technical Information (OSTI.GOV)

Savina, M. V., E-mail: savina@cern.ch

2011-03-15

A brief survey of the present-day status of the problem of multidimensional-black-hole production at accelerators according to models featuring large extra dimensions is given. The respective production cross section and the Hawking temperature and decay rate are estimated versus model parameters. Possible flaws and assumptions whose accurate inclusion can reduce significantly the probability of blackhole production at accelerators in relation to earlier optimistic estimates are also discussed.

Attributions for Problem Behavior as Described by Turkish Teachers of Special Education

ERIC Educational Resources Information Center

Erbas, Dilek; Turan, Yasemin; Aslan, Yesim Gulec; Dunlap, Glen

2010-01-01

The purpose of this survey study was to determine Turkish teachers' attributions of problem behaviors. The participants' (special education teachers) attributions of problem behaviors varied with some teachers showing agreement with a behavioral perspective while others attributed the occurrence of problem behaviors to other factors (e.g., poor…

Trends in parent-reported emotional and behavioral problems among children using special education services.

PubMed

Pastor, Patricia N; Reuben, Cynthia A

2015-06-01

This report describes trends in health conditions reported by parents as the limitations leading to special education services for their children. Data are reported for children ages 6-17 (N=182,998) surveyed in households in the 2001-2012 National Health Interview Survey. Between 2001 and 2012, the overall percentage of U.S. children ages 6-17 who were receiving special education services increased from 7.2% to 8.7%. Between 2001 and 2012, the leading causes of activity limitations among children receiving special education services included emotional or behavioral problems, which increased from 36% to 43%; speech problems, which increased from 16% to 22%; and learning disability, which decreased from 41% to 27%. There were no significant trends in any of the other conditions considered as possible sources of activity limitations. Emotional and behavioral problems have become the most frequently reported source of activity limitations among children receiving special education services.

Optimization, Monotonicity and the Determination of Nash Equilibria — An Algorithmic Analysis

NASA Astrophysics Data System (ADS)

Lozovanu, D.; Pickl, S. W.; Weber, G.-W.

2004-08-01

This paper is concerned with the optimization of a nonlinear time-discrete model exploiting the special structure of the underlying cost game and the property of inverse matrices. The costs are interlinked by a system of linear inequalities. It is shown that, if the players cooperate, i.e., minimize the sum of all the costs, they achieve a Nash equilibrium. In order to determine Nash equilibria, the simplex method can be applied with respect to the dual problem. An introduction into the TEM model and its relationship to an economic Joint Implementation program is given. The equivalence problem is presented. The construction of the emission cost game and the allocation problem is explained. The assumption of inverse monotony for the matrices leads to a new result in the area of such allocation problems. A generalization of such problems is presented.

Relative motion of orbiting satellites

NASA Technical Reports Server (NTRS)

Eades, J. B., Jr.

1972-01-01

The relative motion problem is analyzed, as a linearized case, and as a numerically determined solution to provide a time history of the geometries representing the motion state. The displacement history and the hodographs for families of solutions are provided, analytically and graphically, to serve as an aid to understanding this problem area. Linearized solutions to relative motion problems of orbiting particles are presented for the impulsive and fixed thrust cases. Second order solutions are described to enhance the accuracy of prediction. A method was developed to obtain accurate, numerical solutions to the intercept and rendezvous problem; and, special situations are examined. A particular problem related to relative motions, where the motion traces develop a cusp, is examined in detail. This phenomenon is found to be dependent on a particular relationship between orbital eccentricity and the inclination between orbital planes. These conditions are determined, and, example situations are presented and discussed.

Peddling Programs: Getting the Message Across.

ERIC Educational Resources Information Center

Commuter, 1981

1981-01-01

Publicity techniques for reaching commuter students are presented in this article. Following a discussion of the special problems associated with reaching commuter students with information, the difference between promotion, advertising, and publicity is explained. Publicity strategies are then provided for: (1) reaching adult students; (2)…

Orientation through Presentation: Getting MBA Students Interested in Communication Training

ERIC Educational Resources Information Center

Connor, Michael

2005-01-01

The recent "Business Communication Quarterly" special issue on management communication instruction in internationally oriented MBA programs draws attention to a delicate and pervasive problem. Debby Andrews pointed out that whereas acknowledgment of the importance of communication skills for management is commonplace, curricula…

Coaches in the Courtroom: Recovery in Actions for Breach of Employment Contracts.

ERIC Educational Resources Information Center

Graves, Judson

1986-01-01

The rapid hiring and firing of college athletic coaches, the litigation brought in breach of employment contracts, and the special problems presented by coaching contracts have raised hard legal questions about proper methods of contract enforcement and recovery of damages. (MSE)

An Out-of-Math Experience: Einstein, Relativity, and the Developmental Mathematics Student.

ERIC Educational Resources Information Center

Fiore, Greg

2000-01-01

Discusses Einstein's special relativity theory and some of the developmental mathematics involved. Presents motivational classroom materials used in discussing relative-motion problems, evaluating a radical expression, graphing with asymptotes, interpreting a graph, studying variation, and solving literal and radical equations. (KHR)

Counseling Conservative and Fundamentalist Christians: Issues and Implications for the Counselor.

ERIC Educational Resources Information Center

Hannon, J. Wade; And Others

1994-01-01

Explores special considerations for counseling adherents of fundamentalist Christian belief systems. Discusses identification of fundamentalists and assessment of the impact of religiosity on presenting counseling problems. Reviews oppressive effects of fundamentalist patriarchal beliefs and practices on women in counseling, and gives suggestions…

Design and application of gas-gap heat switches

NASA Technical Reports Server (NTRS)

Chan, C. K.; Ross, R. G., Jr.

1990-01-01

Gas-gap heat switches can serve as an effective means of thermally disconnecting a standby cryocooler when the primary (operating) cooler is connected and vice versa. The final phase of the development and test of a cryogenic heat switch designed for loads ranging from 2 watts at 8 K, to 100 watts at 80 K are described. Achieved heat-switch on/off conductance ratio ranged from 11,000 at 8 K to 2200 at 80 K. A particularly challenging element of heat-switch design is achieving satisfactory operation when large temperatures differentials exist across the switch. A special series of tests and analyses was conducted and used in this Phase-2 activity to evaluate the developed switches for temperature differentials ranging up to 200 K. Problems encountered at the maximum levels are described and analyzed, and means of avoiding the problems in the future are presented. A comprehensive summary of the overall heat-switch design methodology is also presented with special emphasis on lessons learned over the course of the 4-year development effort.

Juvenile neuronal ceroid lipofuscinosis and education.

PubMed

von Tetzchner, Stephen; Fosse, Per; Elmerskog, Bengt

2013-11-01

Juvenile neuronal ceroid lipofuscinosis (JNCL) is characterized by severe visual impairment with onset around age 4-8 years, and a developmental course that includes blindness, epilepsy, speech problems, dementia, motor coordination problems, and emotional reactions. There is presently no cure and the disease leads to premature death. There have been few studies of non-medical intervention for individuals with JNCL, probably because of the negative prognosis. The present chapter discusses the education of children and adolescents with JNCL on the basis of current knowledge about the variation in perceptual, cognitive and language abilities through the course of the disease, and the possibilities that exist for supporting coping and learning within and outside the classroom. Adapted and special needs education may contribute significantly to improved learning conditions, better maintenance of skills and less frustration for individuals with JNCL. This article is part of a Special Issue entitled: The Neuronal Ceroid Lipofuscinoses or Batten Disease. Copyright © 2013 Elsevier B.V. All rights reserved.

Captive breeding of pangolins: current status, problems and future prospects

PubMed Central

Hua, Liushuai; Gong, Shiping; Wang, Fumin; Li, Weiye; Ge, Yan; Li, Xiaonan; Hou, Fanghui

2015-01-01

Abstract Pangolins are unique placental mammals with eight species existing in the world, which have adapted to a highly specialized diet of ants and termites, and are of significance in the control of forest termite disaster. Besides their ecological value, pangolins are extremely important economic animals with the value as medicine and food. At present, illegal hunting and habitat destruction have drastically decreased the wild population of pangolins, pushing them to the edge of extinction. Captive breeding is an important way to protect these species, but because of pangolin’s specialized behaviors and high dependence on natural ecosystem, there still exist many technical barriers to successful captive breeding programs. In this paper, based on the literatures and our practical experience, we reviewed the status and existing problems in captive breeding of pangolins, including four aspects, the naturalistic habitat, dietary husbandry, reproduction and disease control. Some recommendations are presented for effective captive breeding and protection of pangolins. PMID:26155072

A locally refined rectangular grid finite element method - Application to computational fluid dynamics and computational physics

NASA Technical Reports Server (NTRS)

Young, David P.; Melvin, Robin G.; Bieterman, Michael B.; Johnson, Forrester T.; Samant, Satish S.

1991-01-01

The present FEM technique addresses both linear and nonlinear boundary value problems encountered in computational physics by handling general three-dimensional regions, boundary conditions, and material properties. The box finite elements used are defined by a Cartesian grid independent of the boundary definition, and local refinements proceed by dividing a given box element into eight subelements. Discretization employs trilinear approximations on the box elements; special element stiffness matrices are included for boxes cut by any boundary surface. Illustrative results are presented for representative aerodynamics problems involving up to 400,000 elements.

[The role of the N. N. Burdenko Main Military Clinical Hospital in the development of specialized medical care in the Armed Forces of the Russian Federation].

PubMed

1997-11-01

The article give the characteristic of the specialized medical care as the highest form of the medical care, enabling to use more effectively the most advanced achievements of all fields of the clinical medicine and appropriate categories of the experts with the purposes of the successful treatment of the injured and patients. A role of V. A. Oppel', N. N. Burdenko, E. I. Smirnov in origin and development of the specialized medical help in military-field conditions is marked. On example of Burdenko Main Military Clinical Hospital achievement and problems of the specialized medical help at the present stage are shown, prospects and ways of its further development and perfection are planned.

An exact algorithm for optimal MAE stack filter design.

PubMed

Dellamonica, Domingos; Silva, Paulo J S; Humes, Carlos; Hirata, Nina S T; Barrera, Junior

2007-02-01

We propose a new algorithm for optimal MAE stack filter design. It is based on three main ingredients. First, we show that the dual of the integer programming formulation of the filter design problem is a minimum cost network flow problem. Next, we present a decomposition principle that can be used to break this dual problem into smaller subproblems. Finally, we propose a specialization of the network Simplex algorithm based on column generation to solve these smaller subproblems. Using our method, we were able to efficiently solve instances of the filter problem with window size up to 25 pixels. To the best of our knowledge, this is the largest dimension for which this problem was ever solved exactly.

Problem-Solving Model for Decision Making with High-Incidence Disabilities: The Minneapolis Experience.

ERIC Educational Resources Information Center

Marston, Doug; Muyskens, Paul; Lau, Matthew; Canter, Andrea

2003-01-01

This article describes the problem-solving model (PSM) used in the Minneapolis Public Schools to guide decisions regarding intervention in general education, special education referral, and evaluation for special education eligibility for high-incidence disabilities. Program evaluation indicates students received special education services earlier…

A Review of Youth Employment Problems, Programs & Policies: Volume 2. Special Needs and Concentrated Problems.

ERIC Educational Resources Information Center

Vice President's Task Force on Youth Employment, Washington, DC.

This series of nine reports reviews available information on the special needs and concentrated problems of youth employment. (It constitutes the second of a three-volume compendium; other volumes examine causes and dimensions of youth employment problems and analyze program experience--see note.) The effects of discrimination on minority youth…

45 CFR 1620.3 - Establishing priorities.

Code of Federal Regulations, 2010 CFR

2010-10-01

... other efforts to solve particular problems in the area served; (10) Whether legal efforts will result in... recipient, including all significant segments of that population with special legal problems or special... particular legal problems to the individual clients of the recipient; (8) The susceptibility of particular...

OIL SPILL RESPONSE SCENARIOS FOR REMOTE ARCTIC ENVIRONMENTS

EPA Science Inventory

Special problems occur during oil spill cleanup in remote inland areas in cold climates. In Alaska these problems result from the harsh climate, the unusual terrain features, and the special problems of spills along swift rivers. The analysis begins with a description of the envi...

A Bayesian additive model for understanding public transport usage in special events.

PubMed

Rodrigues, Filipe; Borysov, Stanislav; Ribeiro, Bernardete; Pereira, Francisco

2016-12-02

Public special events, like sports games, concerts and festivals are well known to create disruptions in transportation systems, often catching the operators by surprise. Although these are usually planned well in advance, their impact is difficult to predict, even when organisers and transportation operators coordinate. The problem highly increases when several events happen concurrently. To solve these problems, costly processes, heavily reliant on manual search and personal experience, are usual practice in large cities like Singapore, London or Tokyo. This paper presents a Bayesian additive model with Gaussian process components that combines smart card records from public transport with context information about events that is continuously mined from the Web. We develop an efficient approximate inference algorithm using expectation propagation, which allows us to predict the total number of public transportation trips to the special event areas, thereby contributing to a more adaptive transportation system. Furthermore, for multiple concurrent event scenarios, the proposed algorithm is able to disaggregate gross trip counts into their most likely components related to specific events and routine behavior. Using real data from Singapore, we show that the presented model outperforms the best baseline model by up to 26% in R2 and also has explanatory power for its individual components.

Essays on Economics of Education

ERIC Educational Resources Information Center

Kim, Bo Min

2013-01-01

This dissertation analyzes the effects of the educational programs for students who need special care in secondary and postsecondary school. These educational programs present serious endogeneity problems to a researcher estimating their causal effects, because most of students tried to avoid these programs. I extend the current literature in the…

Teaching Techniques of Resistance to Unwarranted Social Pressure

ERIC Educational Resources Information Center

Richey, Harold W.

1976-01-01

Literature examining compliance with majority opinion, obedience to authority, maladaptive implications of such conformity and ways to counteract it is presented. Suggestions are given for making students aware of conformity and techniques of appropriate resistance. The special problem of peer group pressure for adolescents is considered. (Author)

Social Science Libraries Section. Special Libraries Division. Papers.

ERIC Educational Resources Information Center

International Federation of Library Associations, The Hague (Netherlands).

Papers on social science documentation and information services presented at the 1982 International Federation of Library Associations (IFLA) conference include: (1) "Problems in the Availability of Some Social Science Publications," a discussion by Maurice B. Line (United Kingdom) of bibliographic control of fugitive literature in the…

What's New in Elder Abuse Programming? Four Bright Ideas.

ERIC Educational Resources Information Center

Wolf, Rosalie S.; Pillemar, Karl

1994-01-01

Presents four "best practice models" that address problems faced by community agencies working with elder abuse cases: multidisciplinary case consultation team; senior advocate volunteer program; victim support group; and master's of social work degree specialization in adult protective services. Sees their relatively low cost, flexibility, and…

Adaptive thinking & leadership simulation game training for special forces officers.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Raybourn, Elaine Marie; Mendini, Kip; Heneghan, Jerry

Complex problem solving approaches and novel strategies employed by the military at the squad, team, and commander level are often best learned experimentally. Since live action exercises can be costly, advances in simulation game training technology offer exciting ways to enhance current training. Computer games provide an environment for active, critical learning. Games open up possibilities for simultaneous learning on multiple levels; players may learn from contextual information embedded in the dynamics of the game, the organic process generated by the game, and through the risks, benefits, costs, outcomes, and rewards of alternative strategies that result from decision making. Inmore » the present paper we discuss a multiplayer computer game simulation created for the Adaptive Thinking & Leadership (ATL) Program to train Special Forces Team Leaders. The ATL training simulation consists of a scripted single-player and an immersive multiplayer environment for classroom use which leverages immersive computer game technology. We define adaptive thinking as consisting of competencies such as negotiation and consensus building skills, the ability to communicate effectively, analyze ambiguous situations, be self-aware, think innovatively, and critically use effective problem solving skills. Each of these competencies is an essential element of leader development training for the U.S. Army Special Forces. The ATL simulation is used to augment experiential learning in the curriculum for the U.S. Army JFK Special Warfare Center & School (SWCS) course in Adaptive Thinking & Leadership. The school is incorporating the ATL simulation game into two additional training pipelines (PSYOPS and Civil Affairs Qualification Courses) that are also concerned with developing cultural awareness, interpersonal communication adaptability, and rapport-building skills. In the present paper, we discuss the design, development, and deployment of the training simulation, and emphasize how the multiplayer simulation game is successfully used in the Special Forces Officer training program.« less

Quantum mechanics on space with SU(2) fuzziness

NASA Astrophysics Data System (ADS)

Fatollahi, Amir H.; Shariati, Ahmad; Khorrami, Mohammad

2009-04-01

Quantum mechanics of models is considered which are constructed in spaces with Lie algebra type commutation relations between spatial coordinates. The case is specialized to that of the group SU(2), for which the formulation of the problem via the Euler parameterization is also presented. SU(2)-invariant systems are discussed, and the corresponding eigenvalue problem for the Hamiltonian is reduced to an ordinary differential equation, as is the case with such models on commutative spaces.

The general solution to the classical problem of finite Euler Bernoulli beam

NASA Technical Reports Server (NTRS)

Hussaini, M. Y.; Amba-Rao, C. L.

1977-01-01

An analytical solution is obtained for the problem of free and forced vibrations of a finite Euler Bernoulli beam with arbitrary (partially fixed) boundary conditions. The effects of linear viscous damping, Winkler foundation, constant axial tension, a concentrated mass, and an arbitrary forcing function are included in the analysis. No restriction is placed on the values of the parameters involved, and the solution presented here contains all cited previous solutions as special cases.

[The current views of the problem of the plastic correction of the laryngo-tracheal defects in the patients presenting with combined laryngeal stenoses].

PubMed

Selezneva, L V

2017-01-01

The present review of the literature is designed to analyze the currently available methods for the plastic correction of the laryngo-tracheal defects in the patients presenting with combined laryngeal stenoses at the concluding stage of their medical rehabilitation. We looked through 56 literature sources including 28 publications of the foreign authors. The different approaches to the plastic correction of the laryngo-tracheal defects have been critically considered with special reference to their advantages and disadvantages. The importance of the problem under consideration arises from the necessity of the search for the new methods of plastic correction of the laryngo-tracheal defects.

Fuzzy bilevel programming with multiple non-cooperative followers: model, algorithm and application

NASA Astrophysics Data System (ADS)

Ke, Hua; Huang, Hu; Ralescu, Dan A.; Wang, Lei

2016-04-01

In centralized decision problems, it is not complicated for decision-makers to make modelling technique selections under uncertainty. When a decentralized decision problem is considered, however, choosing appropriate models is no longer easy due to the difficulty in estimating the other decision-makers' inconclusive decision criteria. These decision criteria may vary with different decision-makers because of their special risk tolerances and management requirements. Considering the general differences among the decision-makers in decentralized systems, we propose a general framework of fuzzy bilevel programming including hybrid models (integrated with different modelling methods in different levels). Specially, we discuss two of these models which may have wide applications in many fields. Furthermore, we apply the proposed two models to formulate a pricing decision problem in a decentralized supply chain with fuzzy coefficients. In order to solve these models, a hybrid intelligent algorithm integrating fuzzy simulation, neural network and particle swarm optimization based on penalty function approach is designed. Some suggestions on the applications of these models are also presented.

Special Education in East Germany under Communist Domination.

ERIC Educational Resources Information Center

Sengstock, Wayne L.; Ruttgardt, Sieglind Ellger

1995-01-01

This article describes the development of special education in East Germany from the close of World War II through the cold war period, and examines the problems and challenges currently facing special education in a reunified Germany. These include a lack of infrastructure, economic needs, staffing problems, and needed curriculum changes. (DB)

Solar radiation data sources, applications, and network design

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

A prerequisite to considering solar energy projects is to determine the requirements for information about solar radiation to apply to possible projects. This report offers techniques to help the reader specify requirements in terms of solar radiation data and information currently available, describes the past and present programs to record and present information to be used for most requirements, presents courses of action to help the user meet his needs for information, lists sources of solar radiation data and presents the problems, costs, benefits and responsibilities of programs to acquire additional solar radiation data. Extensive background information is provided aboutmore » solar radiation data and its use. Specialized information about recording, collecting, processing, storing and disseminating solar radiation data is given. Several Appendices are included which provide reference material for special situations.« less

Special Medical Problems of Athletes.

ERIC Educational Resources Information Center

Couch, Joan M.

1987-01-01

This article addresses the situations in which athletes with special needs and considerations participate in sports. The health problems discussed are diabetes mellitus, exercise-induced asthma, exercise-induced anaphylaxis, and epilepsy. (MT)

Language Problems in Africa; A Bibliography (1946-1967) and Summary of the Present Situation, with Special Reference to Kenya, Tanzania and Uganda.

ERIC Educational Resources Information Center

Molnos, Angela, Comp.

The present Information Circular covering the language situation in East Africa has been prepared as a bibliographic reference tool for specialists, universities, and libraries. The introductory section describes the work of EARIC (East African Research Information Centre), which is sponsored by the East African Academy and financed by the Ford…

[Kinesiotaping as an interdisciplinary therapeutic method].

PubMed

Mosiejczuk, Hanna; Lubińska, Agnieszka; Ptak, Magdalena; Szylińska, Aleksandra; Kemicer-Chmielewska, Ewa; Laszczyńska, Maria; Rotter, Iwona

Kinesiotaping (KT) is one of the newest methods commonly used in many medical sciences: neurology, orthopaedics and traumatology, oncology, gynaecology and obstetrics, and in paediatrics. Due to its special properties, KT can be used depending on individual needs and problems during rehabilitation. This article presents a systematic review of the clinical effectiveness of using KT in physiotherapy. KT method is widespread in different medical sciences and is a good method supporting rehabilitation and pharmacological treatment. Due to its special properties it can be used in children, adults, and also pregnant women.

A multicenter study on dental trauma in permanent incisors among Special Olympics athletes in Europe and Eurasia.

PubMed

Fernandez, Carla; Kaschke, Imke; Perlman, Steven; Koehler, Bjoern; Marks, Luc

2015-11-01

Special Olympics athletes, as part of the population with intellectual disabilities, are reported to be more vulnerable to dental injuries due to poor lip closure, slow response to environmental obstacles, oral pathologic reflexes, or dental features. The aim of this study was to assess the prevalence of dental trauma among Special Olympics athletes in countries of Europe and Eurasia. A retrospective longitudinal study was performed with data collected through standardized Special Smiles screening forms and procedures from consenting 15,941 athletes participating in the annual Special Olympics held in 49 countries from Europe and Eurasia between 2007 and 2012. The data was compiled in an Excel worksheet and transferred to an SPSS data file in order to be analyzed. A total of 2190 athletes presented dental injury (13.02%) with a std. deviation of 5.02%, and there were no significant differences (p = 0.136) in mean dental injury between age groups (one-way ANOVA test). The present data suggest that dental trauma is an actual problem among individuals with special needs. The distribution of prevalence among the different countries had a remarkable variability, but it is evident that a relatively high proportion of this population is in need of dental trauma preventive programs.

Education Finance Reform. Voices for Illinois Children Special Report.

ERIC Educational Resources Information Center

Nagle, Ami; Kim, Robert

This special report reviews problems in Illinois' education funding system and discusses potential solutions to these problems. The report notes that the fundamental problem with the current education finance system is an over-reliance on local property taxes. Although property taxes are a relatively stable and lucrative revenue source,…

Toward a Comprehensive Rural Development Policy.

ERIC Educational Resources Information Center

Knutson, Ronald D.; And Others

Rural development is broader than just agriculture. Farm policy cannot solve rural community problems. Rural problems are sufficiently unique to require special emphasis and special programs. Since rural development has a broader focus than the local community, its problems need to be addressed by all levels of government as well as the private…

Comparison of Homeless and Non-Homeless Problem Drug Users Recruited from Primary Care Safety-Net Clinics.

PubMed

Krupski, Antoinette; Graves, Meredith C; Bumgardner, Kristin; Roy-Byrne, Peter

2015-11-01

The present study of homeless non-treatment-seeking problem drug users was designed to complement and extend previous studies which focused exclusively on treatment-seeking homeless problem drug users. Data were available for 866 primary care patients with drug problems, 30% homeless and 70% housed. In the 2 years prior to baseline, homeless participants had less chronic medical co-morbidity than problem drug users who were housed yet were significantly more likely to have used emergency department services, to have used them more frequently, and at higher cost. Compared to their housed counterparts, homeless participants were also more likely to have been admitted to specialized chemical dependency treatment and/or detoxification services, to have been arrested for a felony or gross misdemeanor, and to report having psychiatric problems in the prior 30 days. Additional support may be necessary for homeless patients presenting in primary care to benefit from substance abuse treatment given their more severe drug use problems coupled with their co-morbid health, psychiatric, and psychosocial problems. Copyright © 2015 Elsevier Inc. All rights reserved.

Quantum solution to a class of two-party private summation problems

NASA Astrophysics Data System (ADS)

Shi, Run-Hua; Zhang, Shun

2017-09-01

In this paper, we define a class of special two-party private summation (S2PPS) problems and present a common quantum solution to S2PPS problems. Compared to related classical solutions, our solution has advantages of higher security and lower communication complexity, and especially it can ensure the fairness of two parties without the help of a third party. Furthermore, we investigate the practical applications of our proposed S2PPS protocol in many privacy-preserving settings with big data sets, including private similarity decision, anonymous authentication, social networks, secure trade negotiation, secure data mining.

The threat of nuclear war: Some responses

PubMed Central

Marcattilio, A. J. M.; Nevin, John A.

1986-01-01

The possibility of nuclear holocaust threatens the very existence of the world community. Biologists, earth scientists, educators, lawyers, philosophers, physicists, physicians, and social scientists have addressed the problem from their special perspectives, and have had substantial impact on the public. Behavior analysts, however, have not as a whole contributed a great deal to the goal of preventing nuclear catastrophe. We argue that the threat of nuclear war is primarily a behavioral problem, and present an analysis of that problem. In addition, we address the difficulty of implementing behavioral interventions that would contribute to the survival of the World. PMID:22478648

Liquid disinfection using power impulse laser

NASA Astrophysics Data System (ADS)

Gribin, S.; Assaoul, Viktor; Markova, Elena; Gromova, Ludmila P.; Spesivtsev, Boris; Bazanov, V.

1996-05-01

The presented method is based on the bactericidal effect of micro-blast induced by various sources (laser breakdown, electrohydraulic effect...). Using elaborated conception of physical phenomena providing liquid disinfection it is possible to determine optimal conditions of water treatment. The problem of optimization is solved using methods of mathematical modeling and special experiments.

Development of a Real-Time Intelligent Network Environment.

ERIC Educational Resources Information Center

Gordonov, Anatoliy; Kress, Michael; Klibaner, Roberta

This paper presents a model of an intelligent computer network that provides real-time evaluation of students' performance by incorporating intelligence into the application layer protocol. Specially designed drills allow students to independently solve a number of problems based on current lecture material; students are switched to the most…

Great Work, Genuine Problems

ERIC Educational Resources Information Center

Berry, John N., III

2007-01-01

This article presents findings from the "Library Journal's" Job Satisfaction Survey among 3,095 library staffers from public, academic, special, and school libraries. A whopping 85.6 percent of the respondents said they would choose a career in librarianship again if they had to start over. Workers in all types of libraries--and across…

Present status, future prospects of domestic acoustical instruments

NASA Astrophysics Data System (ADS)

Guibin, L.

1984-01-01

The product lines, specifications, and special features of China's main acoustical instrument products are described. The methods of operation nd the main problems associated with these products are discussed. Examples of the application of acoustical instruments are given. The main features of a digital signal analyzer are enumerated.

Working Conditions: Job Design. Working Paper #4.

ERIC Educational Resources Information Center

Gersten, Russell; And Others

This summary report presents an integration of findings on teachers' perceptions of their working conditions, based on survey and interview data from special educators in six large urban school districts. Emphasis is on perceptions of problems related to job design, the highly interrelated set of structures, systems, and processes intended to…

Language Arts: Exceptional Child Education Curriculum K-12.

ERIC Educational Resources Information Center

Curran, Teresa; And Others

The Exceptional Child Education (ECE) program of Jefferson County Public Schools in Louisville, Kentucky, presents this language arts curriculum for use with K-12 students who have learning problems. The ECE program uses the curriculum and materials of the general education program whenever appropriate, but has access to special instructional…

The Unknown Variable: Identifying Learning Disabilities with Pupil Behavior Rating Scales.

ERIC Educational Resources Information Center

Winzer, Margret; Malarczyk, Barbara

Difficulties in identifying learning disabilities (LD) are examined, and special problems presented by hearing impaired children with LD are considered. The value of rating scales as a quick instrument for obtaining, measuring, recording and communicating information is emphasized. Adaptations of the Pupil Rating Scale for hearing impaired…

Spacecraft Angular State Estimation After Sensor Failure

NASA Technical Reports Server (NTRS)

Bauer, Frank (Technical Monitor); BarItzhack, Itzhack Y.; Harman, Richard R.

2002-01-01

This work describes two algorithms for computing the angular rate and attitude in case of a gyro failure in a spacecraft (SC) with a special mission profile. The source of the problem is presented, two algorithms are suggested, an observability study is carried out, and the efficiency of the algorithms is demonstrated.

Break-even Analysis: Tool for Budget Planning

ERIC Educational Resources Information Center

Lohmann, Roger A.

1976-01-01

Multiple funding creates special management problems for the administrator of a human service agency. This article presents a useful analytic technique adapted from business practice that can help the administrator draw up and balance a unified budget. Such a budget also affords reliable overview of the agency's financial status. (Author)

Severe Behavior Disorders of Children and Youth. Monograph in Behavioral Disorders, Summer, 1979.

ERIC Educational Resources Information Center

Rutherford, Robert B., Jr., Ed.; Prieto, Alfonso G., Ed.

The monograph presents 19 papers on severe behavior disorders, including issues related to teacher training, school problems/school intervention, autism, and juvenile delinquency. The following papers are included: "Issues in Training Teachers for the Seriously Emotionally Disturbed" (F. Wood); "The Field-Based Special Education Teacher Training…

Language Arts - Spanish Grammar.

ERIC Educational Resources Information Center

Andrade, Magdalena; Sones, Mary

This publication presents three suggested language arts curriculum units. They represent a cross-section of materials that have been developed to deal with the learning problems of students with special language difficulties. Originally developed for grades 7-12, these units may be adapted for use in adult education or at other grade levels. They…

Studies of Horst's Procedure for Binary Data Analysis.

ERIC Educational Resources Information Center

Gray, William M.; Hofmann, Richard J.

Most responses to educational and psychological test items may be represented in binary form. However, such dichotomously scored items present special problems when an analysis of correlational interrelationships among the items is attempted. Two general methods of analyzing binary data are proposed by Horst to partial out the effects of…

Liquid disinfection using power impulse laser

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gribin, S.; Assaoul, V.; Markova, E.

1996-12-31

The presented method is based on the bactericidal effect of micro-blast induced by various sources (laser breakdown, electrohydraulic effect ... ). Using elaborated conception of physical phenomena providing liquid disinfection it is possible to determine optimal conditions of water treatment. The problem of optimization is solved using methods of mathematical modeling and special experiments.

The Problem with a Darwinian View of Humanity

ERIC Educational Resources Information Center

Cunningham, Paul F.

2009-01-01

Comments on the special issue on Charles Darwin and psychology (Dewsbury, February-March 2009), in which the authors present evidence supporting the validity of Charles Darwin's theory of evolution and how generations of psychologists have viewed the natural world through its light, taking Darwinian theories for granted as being a literal…

Cognitive Development in Children with Brain Damage.

ERIC Educational Resources Information Center

Bortner, Morton

Presented is a report on a cross-sectional and longitudinal study concerned with the course of intellectual development in 210 children (6-12 years old) educationally designated as brain damaged (learning disabled and/or behavior problems) and assigned to special school placement. The report is divided into four sections which focus on…

Bilingual Medical Phrase Book (In English and Vietnamese).

ERIC Educational Resources Information Center

Thuy, Vuong G.

This guide offers Vietnamese refugees and immigrants with limited English proficiency a short-cut, word-for-word bilingual reference tool for dealing with medical problems and situations in English-language environments. Seven chapters deal with different issues of the medical encounter and five appendixes present specialized terms and…

Bilingual Medical Phrase Book (In English and Laotian).

ERIC Educational Resources Information Center

Thuy, Vuong G.

This phrase book offers Laotian refugees and immigrants with limited English proficiency a short-cut, word-for-word bilingual reference tool for dealing with medical problems and situations in English-language environments. Seven chapters deal with different issues of the medical encounter and five appendixes present specialized terms and…

Bilingual Medical Phrase Book (In English and Cambodian (Khmer)).

ERIC Educational Resources Information Center

Thuy, Vuong G.

This guide offers Cambodian refugees and immigrants with limited English proficiency a short-cut, word-for-word bilingual reference tool for dealing with medical problems and situations in English-language environments. Seven chapters deal with different issues of the medical encounter and five appendixes present specialized terms and…

First-Year Special Educators: The Influence of School and Classroom Context Factors on Their Accomplishments and Problems

ERIC Educational Resources Information Center

Griffin, Cynthia C.; Kilgore, Karen L.; Winn, Judith A.; Otis-Wilborn, Amy; Hou, Wei; Garvan, Cynthia W.

2009-01-01

Despite a history of research in general education on novice teachers, researchers have only recently begun to investigate the experiences of beginning special educators. Many of these studies describe problems encountered, noting the high attrition rate among beginning special education teachers and emphasizing the importance of keeping qualified…

Artificial intelligence and design: Opportunities, research problems and directions

NASA Technical Reports Server (NTRS)

Amarel, Saul

1990-01-01

The issues of industrial productivity and economic competitiveness are of major significance in the U.S. at present. By advancing the science of design, and by creating a broad computer-based methodology for automating the design of artifacts and of industrial processes, we can attain dramatic improvements in productivity. It is our thesis that developments in computer science, especially in Artificial Intelligence (AI) and in related areas of advanced computing, provide us with a unique opportunity to push beyond the present level of computer aided automation technology and to attain substantial advances in the understanding and mechanization of design processes. To attain these goals, we need to build on top of the present state of AI, and to accelerate research and development in areas that are especially relevant to design problems of realistic complexity. We propose an approach to the special challenges in this area, which combines 'core work' in AI with the development of systems for handling significant design tasks. We discuss the general nature of design problems, the scientific issues involved in studying them with the help of AI approaches, and the methodological/technical issues that one must face in developing AI systems for handling advanced design tasks. Looking at basic work in AI from the perspective of design automation, we identify a number of research problems that need special attention. These include finding solution methods for handling multiple interacting goals, formation problems, problem decompositions, and redesign problems; choosing representations for design problems with emphasis on the concept of a design record; and developing approaches for the acquisition and structuring of domain knowledge with emphasis on finding useful approximations to domain theories. Progress in handling these research problems will have major impact both on our understanding of design processes and their automation, and also on several fundamental questions that are of intrinsic concern to AI. We present examples of current AI work on specific design tasks, and discuss new directions of research, both as extensions of current work and in the context of new design tasks where domain knowledge is either intractable or incomplete. The domains discussed include Digital Circuit Design, Mechanical Design of Rotational Transmissions, Design of Computer Architectures, Marine Design, Aircraft Design, and Design of Chemical Processes and Materials. Work in these domains is significant on technical grounds, and it is also important for economic and policy reasons.

Knowledge-based design of generate-and-patch problem solvers that solve global resource assignment problems

NASA Technical Reports Server (NTRS)

Voigt, Kerstin

1992-01-01

We present MENDER, a knowledge based system that implements software design techniques that are specialized to automatically compile generate-and-patch problem solvers that satisfy global resource assignments problems. We provide empirical evidence of the superior performance of generate-and-patch over generate-and-test: even with constrained generation, for a global constraint in the domain of '2D-floorplanning'. For a second constraint in '2D-floorplanning' we show that even when it is possible to incorporate the constraint into a constrained generator, a generate-and-patch problem solver may satisfy the constraint more rapidly. We also briefly summarize how an extended version of our system applies to a constraint in the domain of 'multiprocessor scheduling'.

The Military Assistance Command-Vietnam Studies and Observations Group-A Case Study in Special Operations Campaigning

DTIC Science & Technology

2016-06-10

viewed as the panacea for all military problems. Politicians view SOF as a low risk minimalist investment that produces results; even for problems...of published work that has been dedicated to discussing special operations theory as an element of military strategy. A good starting point to...utility. Doctrine As a starting point for framing understanding of special operations, Joint Publication (JP) 3-05 Special Operations, provides the basis

Computational modeling of the cell-autonomous mammalian circadian oscillator.

PubMed

Podkolodnaya, Olga A; Tverdokhleb, Natalya N; Podkolodnyy, Nikolay L

2017-02-24

This review summarizes various mathematical models of cell-autonomous mammalian circadian clock. We present the basics necessary for understanding of the cell-autonomous mammalian circadian oscillator, modern experimental data essential for its reconstruction and some special problems related to the validation of mathematical circadian oscillator models. This work compares existing mathematical models of circadian oscillator and the results of the computational studies of the oscillating systems. Finally, we discuss applications of the mathematical models of mammalian circadian oscillator for solving specific problems in circadian rhythm biology.

Apollo experience report: Protection against radiation

NASA Technical Reports Server (NTRS)

English, R. A.; Benson, R. E.; Bailey, J. V.; Barnes, C. M.

1973-01-01

Radiation protection problems on earth and in space are discussed. Flight through the Van Allen belts and into space beyond the geomagnetic shielding was recognized as hazardous before the advent of manned space flight. Specialized dosimetry systems were developed for use on the Apollo spacecraft, and systems for solar-particle-event warning and dose projection were devised. Radiation sources of manmade origin on board the Apollo spacecraft present additional problems. Methods applied to evaluate and control or avoid the various Apollo radiation hazards are discussed.

Assessment of remote sensing technologies to discover and characterize waste sites

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1992-03-11

This report presents details about waste management practices that are being developed using remote sensing techniques to characterize DOE waste sites. Once the sites and problems have been located and characterized and an achievable restoration and remediation program have been established, efforts to reclaim the environment will begin. Special problems to be considered are: concentrated waste forms in tanks and pits; soil and ground water contamination; ground safety hazards for workers; and requirement for long-term monitoring.

A mathematical model of a steady flow through the Kaplan turbine - The existence of a weak solution in the case of an arbitrarily large inflow

NASA Astrophysics Data System (ADS)

Neustupa, Tomáš

2017-07-01

The paper presents the mathematical model of a steady 2-dimensional viscous incompressible flow through a radial blade machine. The corresponding boundary value problem is studied in the rotating frame. We provide the classical and weak formulation of the problem. Using a special form of the so called "artificial" or "natural" boundary condition on the outflow, we prove the existence of a weak solution for an arbitrarily large inflow.

Electrical features of new DNC, CNC system viewed

NASA Astrophysics Data System (ADS)

Fritzsch, W.; Kochan, D.; Schaller, J.; Zander, H. J.

1985-03-01

Control structures capable of solving the problems of a flexible minial-labor manufacturing process are analyzed. The present state of development of equipment technology is described, and possible ways of modeling control processes are surveyed. Concepts which are frequently differently interpreted in various specialized disciplines are systematized, with a view toward creating the prerequisites for interdisciplinary cooperation. Problems and information flow during the preparatory and performance phases of manufacturing are examined with respect to coupling CAD/CAM functions. Mathematical modeling for direct numerical control is explored.

Behavior Problem Syndromes in Educable Mentally Handicapped Greek Children: A Parent and Teacher Estimation.

ERIC Educational Resources Information Center

Stasinos, Demetrios P.

This study examines, first, the problem behavior syndrome in 58 educable mentally handicapped (EMH) children attending special state schools in Greece, and secondly the relationship between those syndromes and sex and special schooling of these individuals. Children's four problem behavior syndromes, i.e., antisocial behavior, excessive…

Language and Narrative Skills in Young Children with Special Health Care Needs

ERIC Educational Resources Information Center

Ergül, Cevriye

2012-01-01

Problem Statement: Previous studies showed that children with special health care needs are at increased risk for future linguistic problems and deficits in narrative abilities. Despite this evidence of increased risk, there has been limited research on the impact of young children's health problems on specific aspects of linguistic development.…

An Examination of Special Focus Facility Nursing Homes

ERIC Educational Resources Information Center

Castle, Nicholas G.; Engberg, John

2010-01-01

Purpose: Nursing facilities that are determined to have a greater number of quality problems, more serious problems than average, and a demonstrated pattern of quality problems are included in the Special Focus Facility (SFF) initiative. The purpose of this research was to provide descriptive information on these SFFs and to examine the quality…

Optimisation by hierarchical search

NASA Astrophysics Data System (ADS)

Zintchenko, Ilia; Hastings, Matthew; Troyer, Matthias

2015-03-01

Finding optimal values for a set of variables relative to a cost function gives rise to some of the hardest problems in physics, computer science and applied mathematics. Although often very simple in their formulation, these problems have a complex cost function landscape which prevents currently known algorithms from efficiently finding the global optimum. Countless techniques have been proposed to partially circumvent this problem, but an efficient method is yet to be found. We present a heuristic, general purpose approach to potentially improve the performance of conventional algorithms or special purpose hardware devices by optimising groups of variables in a hierarchical way. We apply this approach to problems in combinatorial optimisation, machine learning and other fields.

Listen-Identify-Brainstorm-Reality-Test-Encourage (LIBRE) Problem-Solving Model: Addressing Special Education Teacher Attrition through a Cognitive-Behavioral Approach to Teacher Induction

ERIC Educational Resources Information Center

Guerra, Norma S.; Hernandez, Art; Hector, Alison M.; Crosby, Shane

2015-01-01

Special education teacher attrition rates continue to challenge the profession. A cognitive-behavioral problem-solving approach was used to examine three alternative certification program special education teachers' professional development through a series of 41 interviews conducted over a 2-year period. Beginning when they were novice special…

Issues and Needs in Rural Early Childhood Special Education Services in Florida: A Delphi Study.

ERIC Educational Resources Information Center

Weiss, Keith E.; Correa, Vivian I.

A Delphi Technique was used to examine the problems of early childhood special education programs in rural Florida. Two rounds of questionnaires were completed by a panel of early childhood special education administrators and teachers from 14 of Florida's 27 rural counties. In response to the questionnaires, the panel developed 51 problem-related…

Retention and application of Skylab experiences to future programs. [a postflight review of technical programs.

NASA Technical Reports Server (NTRS)

Gillespie, V. G.; Kelly, R. O.

1974-01-01

The problems encountered and special techniques and procedures developed on the Skylab program are described along with the experiences and practical benefits obtained for dissemination and use on future programs. Three major topics are discussed: electrical problems, mechanical problems, and special techniques. Special techniques and procedures are identified that were either developed or refined during the Skylab program. These techniques and procedures came from all manufacturing and test phases of the Skylab program and include both flight and GSE items from component level to sophisticated spaceflight systems.

Fast Solution in Sparse LDA for Binary Classification

NASA Technical Reports Server (NTRS)

Moghaddam, Baback

2010-01-01

An algorithm that performs sparse linear discriminant analysis (Sparse-LDA) finds near-optimal solutions in far less time than the prior art when specialized to binary classification (of 2 classes). Sparse-LDA is a type of feature- or variable- selection problem with numerous applications in statistics, machine learning, computer vision, computational finance, operations research, and bio-informatics. Because of its combinatorial nature, feature- or variable-selection problems are NP-hard or computationally intractable in cases involving more than 30 variables or features. Therefore, one typically seeks approximate solutions by means of greedy search algorithms. The prior Sparse-LDA algorithm was a greedy algorithm that considered the best variable or feature to add/ delete to/ from its subsets in order to maximally discriminate between multiple classes of data. The present algorithm is designed for the special but prevalent case of 2-class or binary classification (e.g. 1 vs. 0, functioning vs. malfunctioning, or change versus no change). The present algorithm provides near-optimal solutions on large real-world datasets having hundreds or even thousands of variables or features (e.g. selecting the fewest wavelength bands in a hyperspectral sensor to do terrain classification) and does so in typical computation times of minutes as compared to days or weeks as taken by the prior art. Sparse LDA requires solving generalized eigenvalue problems for a large number of variable subsets (represented by the submatrices of the input within-class and between-class covariance matrices). In the general (fullrank) case, the amount of computation scales at least cubically with the number of variables and thus the size of the problems that can be solved is limited accordingly. However, in binary classification, the principal eigenvalues can be found using a special analytic formula, without resorting to costly iterative techniques. The present algorithm exploits this analytic form along with the inherent sequential nature of greedy search itself. Together this enables the use of highly-efficient partitioned-matrix-inverse techniques that result in large speedups of computation in both the forward-selection and backward-elimination stages of greedy algorithms in general.

Authentic Assessment of Special Learners: Problem or Promise?

ERIC Educational Resources Information Center

Choate, Joyce S.; Evans, Susan S.

1992-01-01

This article outlines differences between traditional assessment and authentic assessment procedures, discusses problems with each type of assessment in relation to special learners, and offers certain cautions that must be observed when implementing authentic assessment. (JDD)

Teaching Handwriting to Elementary Students with Learning Disabilities: A Problem-Solving Approach

ERIC Educational Resources Information Center

Datchuk, Shawn

2015-01-01

Problems with handwriting can negatively impact the writing of students with learning disabilities. In this article, an example is provided of a fourth-grade special education teacher's efforts to assist a new student by using a problem-solving approach to help determine an efficient course of action for special education teachers who are trying…

The Retention of Mexican American Students in Higher Education with Special Reference to Bicultural and Bilingual Problems.

ERIC Educational Resources Information Center

Guerra, Manuel H.; And Others

The problem of retaining Mexican American students in institutions of higher education is reviewed in these 5 papers: "The Retention of Mexican American Students in Higher Education with Special Reference to Bicultural and Bilingual Problems" by Manuel H. Guerra; "Mexicanismo vs. Retention: Implications of Retaining Mexican American…

Esthetic Education of Children with Special Needs by Means of Computer Art

ERIC Educational Resources Information Center

Salakhov, Rasykh F.; Salakhova, Rada I.; Nasibullov, Ramis R.

2016-01-01

Thematic justification of the problem under study: growth of social stratification in the present context of social and economic transformations and emerging forms of social inequality, which is creating serious obstacles for the younger generation's social adaptation, specifically among those social groups that are dealing with difficulties due…

Determining landscape extent for succession and disturbance simulation modeling

Treesearch

Eva C. Karau; Robert E. Keane

2007-01-01

Dividing regions into manageable landscape units presents special problems in landscape ecology and land management. Ideally, a landscape should be large enough to capture a broad range of vegetation, environmental and disturbance dynamics, but small enough to be useful for focused management objectives. The purpose of this study was to determine the optimal landscape...

Sixth Annual Flight Mechanics/Estimation Theory Symposium

NASA Technical Reports Server (NTRS)

Lefferts, E. (Editor)

1981-01-01

Methods of orbital position estimation were reviewed. The problem of accuracy in orbital mechanics is discussed and various techniques in current use are presented along with suggested improvements. Of special interest is the compensation for bias in satelliteborne instruments due to attitude instabilities. Image processing and correctional techniques are reported for geodetic measurements and mapping.

Human Health Effects, Task Force Assessment, Preliminary Report.

ERIC Educational Resources Information Center

Aronow, Wilbert S.; And Others

Presented in this preliminary report is one of seven assessments conducted by a special task force of Project Clean Air, the Human Health Effects Task Force. The reports summarize assessments of the state of knowledge on various air pollution problems, particularly in California, and make tentative recommendations as to what the University of…

Special Theory of Relativity, Conceptual Change and History of Science.

ERIC Educational Resources Information Center

Villani, Alberto; Arruda, Sergio M.

1998-01-01

Analyzes the problem students have in learning the Theory of Relativity. Points out that the results of the study are ambiguous and intriguing. Describes the publication of Lorentz's Transformation Equations, the presentation of two postulates by Einstein, and the rejection of the Electron Theory and the final acceptance of the Theory of…

Approximation Methods for Inverse Problems Governed by Nonlinear Parabolic Systems

DTIC Science & Technology

1999-12-17

We present a rigorous theoretical framework for approximation of nonlinear parabolic systems with delays in the context of inverse least squares...numerical results demonstrating the convergence are given for a model of dioxin uptake and elimination in a distributed liver model that is a special case of the general theoretical framework .

Building Systems Information Clearinghouse Special Report Number One: Manufacturers Compatibility Study.

ERIC Educational Resources Information Center

Boice, John R., Ed.

BSIC has selected data for inclusion, and a method of presentation that-- (1) provides preliminary data, in comparable form, about all relevant systems building products, (2) surveys within the limits imposed, the problems of compatibility between subsystem components and to identify components which are compatible with one another, (3) identifies…

Efficacy of Teacher In-Service Training for Attention-Deficit/Hyperactivity Disorder

ERIC Educational Resources Information Center

Jones, Heather A.; Chronis-Tuscano, Andrea

2008-01-01

Children with attention-deficit/hyperactivity disorder (ADHD) evidence many problems in the classroom. Teacher in-service training is routinely used to inform school professionals about a number of special topics; however, the efficacy of such in-service training for ADHD has not been established. The present study examined the efficacy of brief…

The Latest Twist on Spreading Innovation: One School at a Time

ERIC Educational Resources Information Center

Moreno, Carlos; Luria, Dana; Mojkowski, Charles

2013-01-01

Responding to the need for game-changing innovation that will catapult student achievement, some school districts seek assistance from school development organizations that specialize in helping schools. But such work presents problems when schools try to adopt and adapt innovation and outside partners face challenges in encouraging schools to…

Thinking Games: Book 1. Occasional Papers 15.

ERIC Educational Resources Information Center

Anderson, Valerie; Bereiter, Carl

This book lists procedures, materials, special problems, and variations for playing 54 games designed to help children use their thinking abilities in play. The games presented were designed primarily for use in school with children aged 5-9. They give practice in such skills as planning, drawing inferences, seeing things from other points of…

Soft Drink Vending Machines in Schools: A Clear and Present Danger

ERIC Educational Resources Information Center

Price, James; Murnan, Judy; Moore, Bradene

2006-01-01

This paper examines the availability of soft drinks in schools ("pouring rights contracts") and its effects on the growing nutritional problems of American youth. Of special concern is the prevalence of overweight youth, which has been increasing at alarming rates. There has been a direct relationship found between soft drink consumption and…

Anabat bat detection system: description and maintenance manual.

Treesearch

Douglas W. Waldren

2000-01-01

Anabat bat detection systems record ultrasonic bat calls on cassette tape by using a sophisticated ultrasonic microphone and cassette tape interface. This paper describes equipment setup and some maintenance issues. The layout and function of display panels are presented with special emphasis on how to use this information to troubleshoot equipment problems. The...

Enablers for Inclusion: The Perspectives of Parents of Children with Autism Spectrum Disorder

ERIC Educational Resources Information Center

Reupert, Andrea; Deppeler, Joanne M.; Sharma, Umesh

2015-01-01

Although home-school collaborations are important for inclusive education, most studies have identified the problems experienced by parents whose children have additional special needs. The aim of this study was to present the views of Australian parents, with children diagnosed with autism spectrum disorder, regarding what they considered to be…

Literature in a TAFE Institute: The Curriculum, Students and Their Classroom Experiences.

ERIC Educational Resources Information Center

Hatters, Cathy

2001-01-01

Notes that teaching literature in a Technical and Further Education setting presents its own special set of problems and paradoxes not usually encountered by teachers in more conventional classrooms. Discusses students and their literature experiences; impact of the canon on teaching; and influence of modern literary theory on the reader-text…

Vandalism and Violence: Innovative Strategies Reduce Cost to Schools. Education U.S.A. Special Report.

ERIC Educational Resources Information Center

Wells, Elmer

This report identifies the causes of disruption, violence, and vandalism; describes various devices and techniques used to improve security; outlines the roles of security personnel in preventing vandalism; and discusses vandalism-related insurance problems. Student participation and community involvement are presented as two possible methods of…

The Pedagogical Relation Past and Present: Experience, Subjectivity and Failure

ERIC Educational Resources Information Center

Friesen, Norm

2017-01-01

The pedagogical relation, the idea of a special relationship between teacher and child, has long been a central theme or "problem" in interpretive studies of education, with the term having been established in English some 25 years ago by Max van Manen. Speaking more broadly, themes of "student-teacher relations" and…

Learning Achievement Packages, Sciences--Biology, English--Spanish, Revised Edition.

ERIC Educational Resources Information Center

Rendon, Rene; Rosenblum, Mark

Four suggested science curriculum units are presented. They represent a cross-section of materials that have been developed to deal with the learning problems of students with special language difficulties in grades 7 through 12, in addition to classes in adult education. The units were classroom-tested during 1970-72. The units, which are…

Children, Television and the New Media. Communication Research and Broadcasting No. 13.

ERIC Educational Resources Information Center

Lohr, Paul, Ed.; Meyer, Manfred, Ed.

This book is a collection of selected articles (published in the 1990s) from "TelevIZIon," a specialized journal of the "Internationales Zentralinstitut fur das Jugend--und Bildungsfernsehen," that take up problems relating to media research and present national and international developments in the field of children's and…

A Model Program of Comprehensive Educational Services for Students With Learning Problems.

ERIC Educational Resources Information Center

Union Township Board of Education, NJ.

Programs are described for learning-disabled or mantally-handicapped elementary and secondary students in regular and special classes in Union, New Jersey, and approximately 58 instructional episodes involving student made objects for understanding technology are presented. In part one, components of the model program such as the multi-learning…

FAMILY AND MENTAL HEALTH PROBLEMS IN A DEAF POPULATION.

ERIC Educational Resources Information Center

RAINER, JOHN D., ED.; AND OTHERS

THE FINAL REPORT OF THE MENTAL HEALTH PROJECT FOR THE DEAF IS PRESENTED. FOLLOWING AN EXPLANATION OF THE PROJECT AND ITS PROCEDURES AND AN HISTORICAL REVIEW OF SPECIAL EDUCATION AND MENTAL HEALTH SERVICES ARE REPORTS (BY INDIVIDUAL AUTHORS) OF THE RESEARCH PROGRAM WITHIN THE NEW YORK STATE DEAF POPULATION, THE REPORTS CONSIDER (1) METHODOLOGICAL…

A More Intuitive Version of the Lorentz Velocity Addition Formula

ERIC Educational Resources Information Center

Devlin, John F.

2009-01-01

The Lorentz velocity addition formula for one-dimensional motion presents a number of problems for beginning students of special relativity. In this paper we suggest a simple rewrite of the formula that is easier for students to memorize and manipulate, and furthermore is more intuitive in understanding the correction necessary when adding…

Psychiatry in prisons.

PubMed

Goldstein, N

1983-12-01

In the midst of the critical struggle over the failures of rehabilitation and the impotency of the prison system, the role of the psychiatrist in the prison has become increasingly unclear. This article presents a persuasive argument for working in prisons and discusses ethical considerations, treatment approaches, and the special problems and challenges provided by prison psychiatry.

Human factors aspects of air traffic control

NASA Technical Reports Server (NTRS)

Older, H. J.; Cameron, B. J.

1972-01-01

An overview of human factors problems associated with the operation of present and future air traffic control systems is presented. A description is included of those activities and tasks performed by air traffic controllers at each operational position within the present system. Judgemental data obtained from controllers concerning psychological dimensions related to these tasks and activities are also presented. The analysis includes consideration of psychophysiological dimensions of human performance. The role of the human controller in present air traffic control systems and his predicted role in future systems is described, particularly as that role changes as the result of the system's evolution towards a more automated configuration. Special attention is directed towards problems of staffing, training, and system operation. A series of ten specific research and development projects are recommended and suggested work plans for their implementation are included.

Intersection of three-dimensional geometric surfaces

NASA Technical Reports Server (NTRS)

Crisp, V. K.; Rehder, J. J.; Schwing, J. L.

1985-01-01

Calculating the line of intersection between two three-dimensional objects and using the information to generate a third object is a key element in a geometry development system. Techniques are presented for the generation of three-dimensional objects, the calculation of a line of intersection between two objects, and the construction of a resultant third object. The objects are closed surfaces consisting of adjacent bicubic parametric patches using Bezier basis functions. The intersection determination involves subdividing the patches that make up the objects until they are approximately planar and then calculating the intersection between planes. The resulting straight-line segments are connected to form the curve of intersection. The polygons in the neighborhood of the intersection are reconstructed and put back into the Bezier representation. A third object can be generated using various combinations of the original two. Several examples are presented. Special cases and problems were encountered, and the method for handling them is discussed. The special cases and problems included intersection of patch edges, gaps between adjacent patches because of unequal subdivision, holes, or islands within patches, and computer round-off error.

Mental health of the male adolescent and young man: the Copenhagen statement.

PubMed

Rice, Timothy R; Shah, Lesha D; Trelles, Pilar; Lin, Shih-Ku; Christensen, Dinne Skjærlund; Walther, Andreas; Sher, Leo

2018-06-01

Male adolescents and young men benefit when their mental health care is specialized to match their unique gendered and developmental needs. Sensitivity to the social circumstances of this population is important; additionally, the emerging ability to tailor care through knowledge gleaned from the intersection of psychiatry, neurology, and endocrinology informs care. This article summarized the views of six experts in the area of the adolescent and young adult male mental health. These experts were select members of the World Federation of Societies of Biological Psychiatry's Task Force on Men's Mental Health. They convened to present two symposia on the topic of men's mental health at the 13th World Congress of Biological Psychiatry (WCBP) in Copenhagen, Denmark in 2017. In these works, a special focus is paid to addictive disorders, disruptive behavior disorders, aggression, and brain development. Collectively, the authors present an argument for the merits of a male-specific model of mental health care to advance the overall well-being of this population. Men's mental health should be recognized as a social issue as much as a medical issue, with special attention paid to problems such as unemployment, familial disruption, and substance abuse. These problems, and especially those of major societal impact including violence and suicide which are much more frequently the product of male youth and men, should have more male-tailored options for service provision that respond to men's mental health needs.

General Tricomi-Rassias problem and oblique derivative problem for generalized Chaplygin equations

NASA Astrophysics Data System (ADS)

Wen, Guochun; Chen, Dechang; Cheng, Xiuzhen

2007-09-01

Many authors have discussed the Tricomi problem for some second order equations of mixed type, which has important applications in gas dynamics. In particular, Bers proposed the Tricomi problem for Chaplygin equations in multiply connected domains [L. Bers, Mathematical Aspects of Subsonic and Transonic Gas Dynamics, Wiley, New York, 1958]. And Rassias proposed the exterior Tricomi problem for mixed equations in a doubly connected domain and proved the uniqueness of solutions for the problem [J.M. Rassias, Lecture Notes on Mixed Type Partial Differential Equations, World Scientific, Singapore, 1990]. In the present paper, we discuss the general Tricomi-Rassias problem for generalized Chaplygin equations. This is one general oblique derivative problem that includes the exterior Tricomi problem as a special case. We first give the representation of solutions of the general Tricomi-Rassias problem, and then prove the uniqueness and existence of solutions for the problem by a new method. In this paper, we shall also discuss another general oblique derivative problem for generalized Chaplygin equations.

Sports Medicine Concerns in Special Olympics.

ERIC Educational Resources Information Center

Low, Leslie J.; Sherrill, Claudine

1988-01-01

The article provides information on medical problems (including seizures, nutrition, atlantoaxia instability, and congenital heart disorders), and guidelines for training (including weight management, acclimation, heat related problems, and warm-up) for volunteers working with mentally retarded participants in Special Olympics. (DB)

The role of the helicopter in transportation. [technology assessment for use in civil aviation

NASA Technical Reports Server (NTRS)

Dajani, J. S.; Warner, D.; Epstein, D.; Obrien, J.

1976-01-01

A general overview is presented of the role that the helicopter plays in the current aviation scene with special emphasis on its use in the airport access function. Technological problems of present-day aircraft are discussed along with some plausible solutions. The economic and regulatory aspects of commercial helicopter operations are presented. Finally six commercial operations utilizing helicopters are reviewed and conditions that enhance the success of the helicopter in the airport access function are proposed.

Optimal orbit transfer suitable for large flexible structures

NASA Technical Reports Server (NTRS)

Chatterjee, Alok K.

1989-01-01

The problem of continuous low-thrust planar orbit transfer of large flexible structures is formulated as an optimal control problem with terminal state constraints. The dynamics of the spacecraft motion are treated as a point-mass central force field problem; the thrust-acceleration magnitude is treated as an additional state variable; and the rate of change of thrust-acceleration is treated as a control variable. To ensure smooth transfer, essential for flexible structures, an additional quadratic term is appended to the time cost functional. This term penalizes any abrupt change in acceleration. Numerical results are presented for the special case of a planar transfer.

Teaching light reflection and refraction to the blind

NASA Astrophysics Data System (ADS)

de Azevedo, A. C.; Vieira, L. P.; Aguiar, C. E.; Santos, A. C. F.

2015-01-01

The latest trend in special education policy is to teach students both with and without special needs in the same school system. In the case of students with visual impairment, one of the main problems they face, particularly in physics, is the lack of instructional material adapted for the experimental laboratory. In this paper, we present strategies, activities and resources for instructional use by physics teachers in classrooms with students with visual impairment using laser devices. For the best results, we suggest that teachers use resources from the perspective of building models to stimulate the interest and active involvement of the students.

Register of specialized sources for information on mechanics of structural failure

NASA Technical Reports Server (NTRS)

Carpenter, J. L., Jr.; Denny, F. J.

1973-01-01

Specialized information sources that generate information relative to six problem areas in aerospace mechanics of structural failure are identified. Selection for inclusion was based upon information obtained from the individual knowledge and professional contacts of Martin Marietta Aerospace staff members and the information uncovered by the staff of technical reviewers. Activities listed perform basic or applied research related to the mechanics of structural failure and publish the results of such research. The purpose of the register is to present, in easy reference form, original sources for dependable information regarding failure modes and mechanisms of aerospace structures.

Asymptotic proportionality (weak ergodicity) and conditional asymptotic equality of solutions to time-heterogeneous sublinear difference and differential equations

NASA Astrophysics Data System (ADS)

Thieme, Horst R.

The concept of asymptotic proportionality and conditional asymptotic equality which is presented here aims at making global asymptotic stability statements for time-heterogeneous difference and differential equations. For such non-autonomous problems (apart from special cases) no prominent special solutions (equilibra, periodic solutions) exist which are natural candidates for the asymptotic behaviour of arbitrary solutions. One way out of this dilemma consists in looking for conditions under which any two solutions to the problem (with different initial conditions) behave in a similar or even the same way as time tends to infinity. We study a general sublinear difference equation in an ordered Banach space and, for illustration, time-heterogeneous versions of several well-known differential equations modelling the spread of gonorrhea in a heterogeneous population, the spread of a vector-borne infectious disease, and the dynamics of a logistically growing spatially diffusing population.

New Formulae for the High-Order Derivatives of Some Jacobi Polynomials: An Application to Some High-Order Boundary Value Problems

PubMed Central

Abd-Elhameed, W. M.

2014-01-01

This paper is concerned with deriving some new formulae expressing explicitly the high-order derivatives of Jacobi polynomials whose parameters difference is one or two of any degree and of any order in terms of their corresponding Jacobi polynomials. The derivatives formulae for Chebyshev polynomials of third and fourth kinds of any degree and of any order in terms of their corresponding Chebyshev polynomials are deduced as special cases. Some new reduction formulae for summing some terminating hypergeometric functions of unit argument are also deduced. As an application, and with the aid of the new introduced derivatives formulae, an algorithm for solving special sixth-order boundary value problems are implemented with the aid of applying Galerkin method. A numerical example is presented hoping to ascertain the validity and the applicability of the proposed algorithms. PMID:25386599

Socio-Emotional Problems Experienced by Deaf and Hard of Hearing Students in Ethiopia

ERIC Educational Resources Information Center

Mekonnen, Mulat; Hannu, Savolainen; Elina, Lehtomäki; Matti, Kuorelahti

2015-01-01

This study compares the socio-emotional problems experienced by deaf and hard of hearing (DHH) students with those of hearing students in Ethiopia. The research involved a sample of 103 grade 4 students attending a special school for the deaf, a special class for the deaf and a regular school. Socio-emotional problems were measured using Goodman's…

Neural network to diagnose lining condition

NASA Astrophysics Data System (ADS)

Yemelyanov, V. A.; Yemelyanova, N. Y.; Nedelkin, A. A.; Zarudnaya, M. V.

2018-03-01

The paper presents data on the problem of diagnosing the lining condition at the iron and steel works. The authors describe the neural network structure and software that are designed and developed to determine the lining burnout zones. The simulation results of the proposed neural networks are presented. The authors note the low learning and classification errors of the proposed neural networks. To realize the proposed neural network, the specialized software has been developed.

CoDA 2014 special issue: Exploring data-focused research across the department of energy: Editorial

DOE PAGES

Myers, Kary Lynn

2015-10-05

Here, this collection of papers, written by researchers at the national labs, in academia, and in industry present real problems, massive and complex datasets, and novel statistical approaches motivated by the challenges presented by experimental and computational science. You'll find explorations of the trajectories of aircraft and of the light curves of supernovae, of computer network intrusions and of nuclear forensics, of photovoltaics and overhead imagery.

Efficient block preconditioned eigensolvers for linear response time-dependent density functional theory

DOE Office of Scientific and Technical Information (OSTI.GOV)

Vecharynski, Eugene; Brabec, Jiri; Shao, Meiyue

We present two efficient iterative algorithms for solving the linear response eigen- value problem arising from the time dependent density functional theory. Although the matrix to be diagonalized is nonsymmetric, it has a special structure that can be exploited to save both memory and floating point operations. In particular, the nonsymmetric eigenvalue problem can be transformed into a product eigenvalue problem that is self-adjoint with respect to a K-inner product. This product eigenvalue problem can be solved efficiently by a modified Davidson algorithm and a modified locally optimal block preconditioned conjugate gradient (LOBPCG) algorithm that make use of the K-innermore » product. The solution of the product eigenvalue problem yields one component of the eigenvector associated with the original eigenvalue problem. However, the other component of the eigenvector can be easily recovered in a postprocessing procedure. Therefore, the algorithms we present here are more efficient than existing algorithms that try to approximate both components of the eigenvectors simultaneously. The efficiency of the new algorithms is demonstrated by numerical examples.« less

Psychotherapeutic training in an institutional setting.

PubMed

Bettschart, W

1990-01-01

Many child and adolescent psychotherapists are asked to work in specialized institutions (where the children are either interns or externs), with children presenting behaviour problems, learning difficulties, mental handicap or important psychosocial problems. They learn through diverse treatment forms, or parent accompaniment during the child's treatment (bifocal or conjoint treatment more or less regular therapeutic sessions with both parents and children, etc.). The treatment of children within an institution makes the treatment modalities and technique more complicated. The psychotherapist must have a perfect knowledge of the specific environment of the child, and keep in mind the desires and requests of the direction and the people who work directly with the child (teachers, specialized teachers, etc.). How can the problems brought up by the rivalry between the institution and the psychotherapist be canalized: length of therapy, merits (how did the pedagogical intervention help, recognition of a specific action or of work done in conjunction with the educative action)? If these facts are not recognized, the treatment will often be interrupted and the psychotherapist may be excluded from the institution. This will be avoided by ensuring further training of the therapist.

Three solutions to a single problem: alternative casting frames for treating infantile idiopathic scoliosis.

PubMed

Halanski, Matthew A; Harper, Benjamin L; Cassidy, Jeffry A; Crawford, Haemish A

2013-07-01

This is a technique article discussing 3 alternative frames for casting children with infantile scoliosis. To provide surgeons with alternatives to expensive specialized casting tables to allow local treatment of these children utilizing readily available materials present at most institutions. Casting for infantile scoliosis has become more popular as reports have shown promising results with this technique without the morbidity and complications associated with more invasive procedures. However, without a specialized casting table, treating these patients has been limited to a few centers throughout the country often causing patients to travel large distances to receive care. Three different alternatives to commercially available casting frames are presented. Requirements, setup, and techniques are discussed. Each surgeon has had success with each of these frames. These provide adequate support and traction while allowing enough access to the trunk to apply a well-molded cast. Cotrel/Metha casting for infantile scoliosis can be accomplished without a specialized table using commonly available equipment.

Behavioral management of the hyperactive child.

PubMed

Murray, M E

1980-09-01

This paper provides a general outline of the principles of behavioral management of the hyperactive child. The use of stimulant medications and special considerations in school are briefly discussed and then suggestions for initial parent counseling, family assessment, and the analysis of specific behavior problems are reviewed. Techniques of behavioral management are presented for the younger hyperactive child (3 to 7 years) and for the older hyperactive child (8 to 13 years). Among management techniques discussed are positive reinforcement, extinction procedures, and punishment through isolation. The problems involved in the use of corporal punishment are outlined as well as specific guidelines for parents as to when and how corporal punishment can be used effectively. A step-by-step summary of how to employ a token economy to manage both home and school behavior problems in older hyperactive children is presented.

A simplified analysis of the multigrid V-cycle as a fast elliptic solver

NASA Technical Reports Server (NTRS)

Decker, Naomi H.; Taasan, Shlomo

1988-01-01

For special model problems, Fourier analysis gives exact convergence rates for the two-grid multigrid cycle and, for more general problems, provides estimates of the two-grid convergence rates via local mode analysis. A method is presented for obtaining mutigrid convergence rate estimates for cycles involving more than two grids (using essentially the same analysis as for the two-grid cycle). For the simple cast of the V-cycle used as a fast Laplace solver on the unit square, the k-grid convergence rate bounds obtained by this method are sharper than the bounds predicted by the variational theory. Both theoretical justification and experimental evidence are presented.

A national profile of the health care experiences and family impact of autism spectrum disorder among children in the United States, 2005-2006.

PubMed

Kogan, Michael D; Strickland, Bonnie B; Blumberg, Stephen J; Singh, Gopal K; Perrin, James M; van Dyck, Peter C

2008-12-01

We sought to examine the health care experiences of children with autism spectrum disorder and the impact of autism spectrum disorder on the family and to assess whether having a medical home is associated with less family impact. We used the 2005-2006 National Survey of Children With Special Health Care Needs to compare 2088 children with special health care needs, aged 3 to 17 years, reported by their parents to have autism spectrum disorder, with children with special health care needs with "other emotional, developmental, or behavioral problems" (excluding autism spectrum disorder; n=9534) and 26751 other children with special health care needs. We used weighted logistic regression to examine unmet needs for specific health care and support services, delayed care, no usual care source or personal physician, difficulty receiving referrals, and financial, employment, or time problems because of child's care. Nationally, an estimated 535000 children have special health care needs and autism spectrum disorder, a prevalence of 86 per 10000 children aged 3 to 17 years. Among children with special health care needs, 5.6% have autism spectrum disorder. Compared with other children with special health care needs without emotional, developmental, or behavioral problems, children with special health care needs with autism spectrum disorder were more likely to have unmet needs for specific health care services, family support services, delayed or foregone care, difficulty receiving referrals, and care that is not family centered. Children with special health care needs with autism spectrum disorder were more likely to live in families that report financial problems, need additional income for the child's medical care, reduce or stop work because of the child's condition, spend >or=10 hours per week providing or coordinating care, and paid more than $1000 in the previous year for the child's care. The financial impacts of autism spectrum disorder were significantly more burdensome when children with special health care needs did not have a medical home. Children with special health care needs with autism spectrum disorder are significantly more likely to have problems regarding access to care and unmet needs, and their families have greater financial, employment, and time burdens compared with other children with special health care needs. Receipt of primary care in a medical home may reduce these burdens.

Charts Showing Relations Among Primary Aerodynamic Variables for Helicopter-performance Estimation

NASA Technical Reports Server (NTRS)

Talkin, Herbert W

1947-01-01

In order to facilitate solutions of the general problem of helicopter selection, the aerodynamic performance of rotors is presented in the form of charts showing relations between primary design and performance variables. By the use of conventional helicopter theory, certain variables are plotted and other variables are considered fixed. Charts constructed in such a manner show typical results, trends, and limits of helicopter performance. Performance conditions considered include hovering, horizontal flight, climb, and ceiling. Special problems discussed include vertical climb and the use of rotor-speed-reduction gears for hovering.

[Medical errors from positions of mutual relations of patient-lawyer-doctor].

PubMed

Radysh, Ia F; Tsema, Ie V; Mehed', V P

2013-01-01

The basic theoretical and practical aspects of problem of malpractice in the system of health protection Ukraine are presented in the article. On specific examples the essence of the term "malpractice" is expounded. It was considered types of malpractice, conditions of beginning and kinds of responsibility to assumption of malpractice. The special attention to the legal and mental and ethical questions of problem from positions of protection of rights for a patient and medical worker is spared. The necessity of qualification malpractices on intentional and unintentional, possible and impermissible is grounded.

Learning Achievement Packages in Sciences-Biology: Cell Theory, Mitosis, Magnification, Wounds.

ERIC Educational Resources Information Center

Solis, Juan D.

This publication presents four science curriculum units designed to meet the learning problems of students with special language handicaps. The materials are written in both English and Spanish, and deal with topics in biology suitable for students in grades 7 through 11. All four units were classroom tested during 1970-1972 in the Calexico…

Strategy Instruction for Students with Learning Disabilities. What Works for Special Needs Learners

ERIC Educational Resources Information Center

Reid, Robert; Lienemann, Torri Ortiz

2006-01-01

Practical and accessible, this book provides the first step-by-step guide to cognitive strategy instruction, which has been shown to be one of the most effective instructional techniques for students with learning problems. Presented are proven strategies that students can use to improve their self-regulated learning, study skills, and performance…

Teachers Education Development in the Arab Gulf States.

ERIC Educational Resources Information Center

Rasheed, Mohammed A.

In the first section of this paper, an overview of the teaching profession in the Arab Gulf States is presented. One of the most troubling problems in this area is that education has expanded rapidly, widely, and in an unprecedented manner. This phenomena is coupled with a great shortage of teachers for all subjects and specializations. This…

Prevalence and Associated Risk Factors of Anemia in Children and Adolescents with Intellectual Disabilities

ERIC Educational Resources Information Center

Lin, Jin-Ding; Lin, Pei-Ying; Lin, Lan-Ping; Hsu, Shang-Wei; Loh, Ching-Hui; Yen, Chia-Feng; Fang, Wen-Hui; Chien, Wu-Chien; Tang, Chi-Chieh; Wu, Chia-Ling

2010-01-01

Anemia is known to be a significant public health problem in many countries. Most of the available information is incomplete or limited to special groups such as people with intellectual disability. The present study aims to provide the information of anemia prevalence and associated risk factors of children and adolescents with intellectual…

The Impact of PBL Technology on the Preparation of Teachers of English Language Learners

ERIC Educational Resources Information Center

Ochoa, Theresa A.; Kelly, Mary L.; Stuart, Shannon; Rogers-Adkinson, Diana

2004-01-01

This document presents a description and explanation of the MUSE module, a multimedia, computer-supported, problem-based learning (CS-PBL) unit that provides users with a simulation of the special education referral process. The module, developed by Leafstedt et al. (2000) depicts an elementary Hispanic student who is limited in English…

Special Concretes and Field Problems; Instructor's Guide; Pilot Program Edition.

ERIC Educational Resources Information Center

Portland Cement Association, Cleveland, OH.

This guide, prepared for a 2-year program in junior colleges and technical institutes, is designed for a national program to train persons for employment as technicians in the cement and concrete industries. Included are 48 session oultines divided into four units of study. Each unit contains session objectives and outlines, presentation outlines,…

Herbicide options for hardwood management

Treesearch

Andrew W. Ezell; A. Brady Self

2016-01-01

The use of herbicides in hardwood management presents special problems in that many of the most effective herbicides are either designed to control hardwoods or the product is not labeled for such applications. Numerous studies involving herbicide application in hardwoods have been completed at Mississippi State University. This paper is a compilation of results from...

Land Use Dynamics in the Brazilian Amazon

Treesearch

Robert Walker

1996-01-01

The articles presented in this special issue of Ecological Economics address the important theme of land use dynamics as it pertains to the Brazilian Amazon. Much environmental change is an ecological artifact of human agency, and such agency is often manifested in land use impacts, particularly in tropical areas. The critical problem of tropical deforestation is but...

Adoptive Identity and Adjustment from Adolescence to Emerging Adulthood: A Person-Centered Approach

ERIC Educational Resources Information Center

Grotevant, Harold D.; Lo, Albert Y. H.; Fiorenzo, Lisa; Dunbar, Nora D.

2017-01-01

Adopted persons face special challenges in the development of identity, as aspects of their histories may be unknown, making it difficult to construct a coherent narrative linking past, present, and future. Extensive literature on adjustment outcomes for adopted persons indicates an elevated risk for adjustment problems. In this study, a low-risk…

Reliability and Prevalence of an Atypical Development of Phonological Skills in French-Speaking Dyslexics

ERIC Educational Resources Information Center

Sprenger-Charolles, Liliane; Cole, Pascale; Kipffer-Piquard, Agnes; Pinton, Florence; Billard, Catherine

2009-01-01

In the present study, conducted with French-speaking children, we examined the reliability (group study) and the prevalence (multiple-case study) of dyslexics' phonological deficits in reading and reading-related skills in comparison with Reading Level (RL) controls. All dyslexics with no comorbidity problem schooled in a special institution for…

Seeing Red, Feeling Blue: The Impact of State Political Leaning on State Identification Rates for Emotional Disturbance

ERIC Educational Resources Information Center

Wiley, Andrew; Siperstein, Gary

2011-01-01

Investigations of why students with emotional disturbance (ED) are underidentified in special education have often focused on economic factors and problems with the definition of ED. The present study focuses on variation in underidentification across states and its relationship to political ideology. State-level political, economic, and…

Elderly adults and skin disorders: common problems for nondermatologists.

PubMed

Na, Chang R; Wang, Steven; Kirsner, Robert S; Federman, Daniel G

2012-11-01

Diseases of elderly adults are becoming increasingly important as life expectancy gradually rises worldwide. To promote healthy aging, it is important to understand the skin changes associated with aging. This review focuses on the special considerations for some of the more common dermatological disorders in elderly adults and examines presentation, contributing factors, and association with systemic diseases.

How to Overcome the One-Track Mind: Teaching for Creativity and Wisdom

ERIC Educational Resources Information Center

Dai, David Yun; Cheng, Huai

2017-01-01

In this response to Sternberg's (2017) feature article in this special issue, we identify and define a kind of closed-minded, dogmatic, self-serving thinking that is nowadays quite prevalent around the world but counterproductive in solving many social problems. We argue that overcoming such a mindset takes wisdom and creativity. We present some…

Addressing the Problem of Poorly Preserved Zoological Specimens: A Case Study with Turtles

ERIC Educational Resources Information Center

Thomas, Robert A.; Thomas, Aimée K.

2015-01-01

We present a new use for a poorly preserved turtle specimen that teachers can easily use in demonstrating vertebrate anatomy or adaptive herpetology at the high school or college level. We give special attention to illustrating the sigmoid flexure of the neck as certain turtles withdraw their heads. This ability is anatomically and biologically…

[Research progress of thermal control system for extravehicular activity space suit].

PubMed

Wu, Z Q; Shen, L P; Yuan, X G

1999-08-01

New research progress of thermal control system for oversea Extravehicular Activity (EVA) space suit is presented. Characteristics of several thermal control systems are analyzed in detail. Some research tendencies and problems are discussed, which are worthwhile to be specially noted. Finally, author's opinion about thermal control system in the future is put forward.

Development of a monolithic ferrite memory array

NASA Technical Reports Server (NTRS)

Heckler, C. H., Jr.; Bhiwandker, N. C.

1972-01-01

The results of the development and testing of ferrite monolithic memory arrays are presented. This development required the synthesis of ferrite materials having special magnetic and physical characteristics and the development of special processes; (1) for making flexible sheets (laminae) of the ferrite composition, (2) for embedding conductors in ferrite, and (3) bonding ferrite laminae together to form a monolithic structure. Major problems encountered in each of these areas and their solutions are discussed. Twenty-two full-size arrays were fabricated and fired during the development of these processes. The majority of these arrays were tested for their memory characteristics as well as for their physical characteristics and the results are presented. The arrays produced during this program meet the essential goals and demonstrate the feasibility of fabricating monolithic ferrite memory arrays by the processes developed.

Nonlinear analysis for high-temperature multilayered fiber composite structures. M.S. Thesis; [turbine blades

NASA Technical Reports Server (NTRS)

Hopkins, D. A.

1984-01-01

A unique upward-integrated top-down-structured approach is presented for nonlinear analysis of high-temperature multilayered fiber composite structures. Based on this approach, a special purpose computer code was developed (nonlinear COBSTRAN) which is specifically tailored for the nonlinear analysis of tungsten-fiber-reinforced superalloy (TFRS) composite turbine blade/vane components of gas turbine engines. Special features of this computational capability include accounting of; micro- and macro-heterogeneity, nonlinear (stess-temperature-time dependent) and anisotropic material behavior, and fiber degradation. A demonstration problem is presented to mainfest the utility of the upward-integrated top-down-structured approach, in general, and to illustrate the present capability represented by the nonlinear COBSTRAN code. Preliminary results indicate that nonlinear COBSTRAN provides the means for relating the local nonlinear and anisotropic material behavior of the composite constituents to the global response of the turbine blade/vane structure.

Cooperation between law enforcement officers and forensic specialists. Diagnosis and possible improvements - a Lithuanian experience.

PubMed

Malewski, Henryk; Kurapka, Vidmantas Egidijus; Matulienė, Snieguolnė; Navickienė, Žaneta

The article investigates the characteristics and forms of cooperation between criminal investigation officers* and forensic laboratory specialists in pre-trial proceedings, as well as practical problems in such cooperation. Recently there have been a number of particularly heated debates about the relationship between determining a person possessing special knowledge and his/her status in pre-trial proceedings. Other discussed aspects include cooperation between entities involved in pre-trial proceedings in international contexts. A less intensive (albeit equally important) discussion relates to the form and characteristics of cooperation between criminal investigation officers on the one hand and specialists and experts on the other in investigating criminal acts. Bearing in mind the high practical importance and the existing differences in scholarly approaches to these issues, the current study concentrates on the forms and content of cooperation between law enforcement officers and specialists (experts) from forensic laboratories, as well as on problems resulting from such cooperation and directions for improvement. The first part of the article presents selected views on the definition of a person possessing special knowledge currently used in Lithuania** and in a number of other states. In the authors' opinion, unification (harmonization) of various notions (definitions), terms and statuses of an expert, a specialist and special knowledge should be one of the objectives in implementing the vision of the joint European forensic science area 2020. Achieving this objective requires a comprehensive analysis of standards in law and management in using special knowledge of each state***. The second part, supported by empirical study results, discusses practical problems of cooperation between a law enforcement officer and a specialist (expert), analyzes three basic forms of their cooperation and presents the content of those forms: activities at the crime scene, cooperation of the two entities in commissioning tests, preparing test materials and actual performance of such tests, and finally participation of a specialist in other pre-trial activities. This part of the paper also proposes methods of improving the efficiency of such cooperation. The third part is based on an evaluation of the study results and presents the authors' observations regarding the tendency of improving the efficiency of cooperation between law enforcement officers and specialists (experts).

Application of a Chimera Full Potential Algorithm for Solving Aerodynamic Problems

NASA Technical Reports Server (NTRS)

Holst, Terry L.; Kwak, Dochan (Technical Monitor)

1997-01-01

A numerical scheme utilizing a chimera zonal grid approach for solving the three dimensional full potential equation is described. Special emphasis is placed on describing the spatial differencing algorithm around the chimera interface. Results from two spatial discretization variations are presented; one using a hybrid first-order/second-order-accurate scheme and the second using a fully second-order-accurate scheme. The presentation is highlighted with a number of transonic wing flow field computations.

A bicriteria heuristic for an elective surgery scheduling problem.

PubMed

Marques, Inês; Captivo, M Eugénia; Vaz Pato, Margarida

2015-09-01

Resource rationalization and reduction of waiting lists for surgery are two main guidelines for hospital units outlined in the Portuguese National Health Plan. This work is dedicated to an elective surgery scheduling problem arising in a Lisbon public hospital. In order to increase the surgical suite's efficiency and to reduce the waiting lists for surgery, two objectives are considered: maximize surgical suite occupation and maximize the number of surgeries scheduled. This elective surgery scheduling problem consists of assigning an intervention date, an operating room and a starting time for elective surgeries selected from the hospital waiting list. Accordingly, a bicriteria surgery scheduling problem arising in the hospital under study is presented. To search for efficient solutions of the bicriteria optimization problem, the minimization of a weighted Chebyshev distance to a reference point is used. A constructive and improvement heuristic procedure specially designed to address the objectives of the problem is developed and results of computational experiments obtained with empirical data from the hospital are presented. This study shows that by using the bicriteria approach presented here it is possible to build surgical plans with very good performance levels. This method can be used within an interactive approach with the decision maker. It can also be easily adapted to other hospitals with similar scheduling conditions.

Efficient block preconditioned eigensolvers for linear response time-dependent density functional theory

NASA Astrophysics Data System (ADS)

Vecharynski, Eugene; Brabec, Jiri; Shao, Meiyue; Govind, Niranjan; Yang, Chao

2017-12-01

We present two efficient iterative algorithms for solving the linear response eigenvalue problem arising from the time dependent density functional theory. Although the matrix to be diagonalized is nonsymmetric, it has a special structure that can be exploited to save both memory and floating point operations. In particular, the nonsymmetric eigenvalue problem can be transformed into an eigenvalue problem that involves the product of two matrices M and K. We show that, because MK is self-adjoint with respect to the inner product induced by the matrix K, this product eigenvalue problem can be solved efficiently by a modified Davidson algorithm and a modified locally optimal block preconditioned conjugate gradient (LOBPCG) algorithm that make use of the K-inner product. The solution of the product eigenvalue problem yields one component of the eigenvector associated with the original eigenvalue problem. We show that the other component of the eigenvector can be easily recovered in an inexpensive postprocessing procedure. As a result, the algorithms we present here become more efficient than existing methods that try to approximate both components of the eigenvectors simultaneously. In particular, our numerical experiments demonstrate that the new algorithms presented here consistently outperform the existing state-of-the-art Davidson type solvers by a factor of two in both solution time and storage.

Efforts to support special-needs soldiers serving in the Israeli defense forces.

PubMed

Bodner, Ehud; Iancu, Iulian; Sarel, Amiram; Einat, Haim

2007-11-01

Providing treatment and support to special-needs populations can decrease psychopathology and suicide rates. Because service in the military is an important socializing force in Israeli society and most Israelis serve, the Israeli Defense Forces (IDF) makes special efforts to identify, treat, and support soldiers with emotional, behavioral, and cognitive problems. This column describes the IDF's efforts for three groups of soldiers with special needs, with a focus on those with the most severe problems who receive support throughout their service to address psychopathology and suicidality. Suicide rates for the IDF population and for the three groups are reported.

Technologies as Rural Special Education Problem Solvers--A Status Report and Successful Strategies.

ERIC Educational Resources Information Center

Helge, Doris

Rural schools can help solve their special education problems by using advanced technology to provide instructional support (computer managed instruction, satellite television, library searches, resource networks, on-line testing), instructional applications (computer assisted instruction, reading machines, mobile vans, instructional television),…

Special Needs Education: A Case of Name Calling?

ERIC Educational Resources Information Center

American Vocational Journal, 1975

1975-01-01

Negative labelling harms by lumping together students with diverse learning problems; instead of diagnosing and treating their problems scientifically, students are stereotyped and relegated to watered down curricula and poor instruction, says one speaker. Other reports on vocational education's response to students special needs are briefly…

On the Special Problems in Creating Group Cohesion Within the Prison Setting.

ERIC Educational Resources Information Center

Juda, Daniel P.

1983-01-01

Describes attempts to form a communication group among male and female inmates. The failure of this effort is discussed with emphasis on the special problems and needs of groups in prisons and the lack of insight among the institution's administration and staff. (JAC)

Optimization of parameters of special asynchronous electric drives

NASA Astrophysics Data System (ADS)

Karandey, V. Yu; Popov, B. K.; Popova, O. B.; Afanasyev, V. L.

2018-03-01

The article considers the solution of the problem of parameters optimization of special asynchronous electric drives. The solution of the problem will allow one to project and create special asynchronous electric drives for various industries. The created types of electric drives will have optimum mass-dimensional and power parameters. It will allow one to realize and fulfill the set characteristics of management of technological processes with optimum level of expenses of electric energy, time of completing the process or other set parameters. The received decision allows one not only to solve a certain optimizing problem, but also to construct dependences between the optimized parameters of special asynchronous electric drives, for example, with the change of power, current in a winding of the stator or rotor, induction in a gap or steel of magnetic conductors and other parameters. On the constructed dependences, it is possible to choose necessary optimum values of parameters of special asynchronous electric drives and their components without carrying out repeated calculations.

Summary of the 2014 Sandia V&V Challenge Workshop

DOE PAGES

Schroeder, Benjamin B.; Hu, Kenneth T.; Mullins, Joshua Grady; ...

2016-02-19

A discussion of the five responses to the 2014 Sandia Verification and Validation (V&V) Challenge Problem, presented within this special issue, is provided hereafter. Overviews of the challenge problem workshop, workshop participants, and the problem statement are also included. Brief summations of teams' responses to the challenge problem are provided. Issues that arose throughout the responses that are deemed applicable to the general verification, validation, and uncertainty quantification (VVUQ) community are the main focal point of this paper. The discussion is oriented and organized into big picture comparison of data and model usage, VVUQ activities, and differentiating conceptual themes behindmore » the teams' VVUQ strategies. Significant differences are noted in the teams' approaches toward all VVUQ activities, and those deemed most relevant are discussed. Beyond the specific details of VVUQ implementations, thematic concepts are found to create differences among the approaches; some of the major themes are discussed. Lastly, an encapsulation of the key contributions, the lessons learned, and advice for the future are presented.« less

Finite-time convergent recurrent neural network with a hard-limiting activation function for constrained optimization with piecewise-linear objective functions.

PubMed

Liu, Qingshan; Wang, Jun

2011-04-01

This paper presents a one-layer recurrent neural network for solving a class of constrained nonsmooth optimization problems with piecewise-linear objective functions. The proposed neural network is guaranteed to be globally convergent in finite time to the optimal solutions under a mild condition on a derived lower bound of a single gain parameter in the model. The number of neurons in the neural network is the same as the number of decision variables of the optimization problem. Compared with existing neural networks for optimization, the proposed neural network has a couple of salient features such as finite-time convergence and a low model complexity. Specific models for two important special cases, namely, linear programming and nonsmooth optimization, are also presented. In addition, applications to the shortest path problem and constrained least absolute deviation problem are discussed with simulation results to demonstrate the effectiveness and characteristics of the proposed neural network.

Effective dimensional reduction algorithm for eigenvalue problems for thin elastic structures: A paradigm in three dimensions

PubMed Central

Ovtchinnikov, Evgueni E.; Xanthis, Leonidas S.

2000-01-01

We present a methodology for the efficient numerical solution of eigenvalue problems of full three-dimensional elasticity for thin elastic structures, such as shells, plates and rods of arbitrary geometry, discretized by the finite element method. Such problems are solved by iterative methods, which, however, are known to suffer from slow convergence or even convergence failure, when the thickness is small. In this paper we show an effective way of resolving this difficulty by invoking a special preconditioning technique associated with the effective dimensional reduction algorithm (EDRA). As an example, we present an algorithm for computing the minimal eigenvalue of a thin elastic plate and we show both theoretically and numerically that it is robust with respect to both the thickness and discretization parameters, i.e. the convergence does not deteriorate with diminishing thickness or mesh refinement. This robustness is sine qua non for the efficient computation of large-scale eigenvalue problems for thin elastic structures. PMID:10655469

Human-computer interfaces applied to numerical solution of the Plateau problem

NASA Astrophysics Data System (ADS)

Elias Fabris, Antonio; Soares Bandeira, Ivana; Ramos Batista, Valério

2015-09-01

In this work we present a code in Matlab to solve the Problem of Plateau numerically, and the code will include human-computer interface. The Problem of Plateau has applications in areas of knowledge like, for instance, Computer Graphics. The solution method will be the same one of the Surface Evolver, but the difference will be a complete graphical interface with the user. This will enable us to implement other kinds of interface like ocular mouse, voice, touch, etc. To date, Evolver does not include any graphical interface, which restricts its use by the scientific community. Specially, its use is practically impossible for most of the Physically Challenged People.

A centre-free approach for resource allocation with lower bounds

NASA Astrophysics Data System (ADS)

Obando, Germán; Quijano, Nicanor; Rakoto-Ravalontsalama, Naly

2017-09-01

Since complexity and scale of systems are continuously increasing, there is a growing interest in developing distributed algorithms that are capable to address information constraints, specially for solving optimisation and decision-making problems. In this paper, we propose a novel method to solve distributed resource allocation problems that include lower bound constraints. The optimisation process is carried out by a set of agents that use a communication network to coordinate their decisions. Convergence and optimality of the method are guaranteed under some mild assumptions related to the convexity of the problem and the connectivity of the underlying graph. Finally, we compare our approach with other techniques reported in the literature, and we present some engineering applications.

Varieties of second modernity: the cosmopolitan turn in social and political theory and research.

PubMed

Beck, Ulrich; Grande, Edgar

2010-09-01

The theme of this special issue is the necessity of a cosmopolitan turn in social and political theory. The question at the heart of this introductory chapter takes the challenge of 'methodological cosmopolitanism', already addressed in a Special Issue on Cosmopolitan Sociology in this journal (Beck and Sznaider 2006), an important step further: How can social and political theory be opened up, theoretically as well as methodologically and normatively, to a historically new, entangled Modernity which threatens its own foundations? How can it account for the fundamental fragility, the mutability of societal dynamics (of unintended side effects, domination and power), shaped by the globalization of capital and risks at the beginning of the twenty-first century? What theoretical and methodological problems arise and how can they be addressed in empirical research? In the following, we will develop this 'cosmopolitan turn' in four steps: firstly, we present the major conceptual tools for a theory of cosmopolitan modernities; secondly, we de-construct Western modernity by using examples taken from research on individualization and risk; thirdly, we address the key problem of methodological cosmopolitanism, namely the problem of defining the appropriate unit of analysis; and finally,we discuss normative questions, perspectives, and dilemmas of a theory of cosmopolitan modernities, in particular problems of political agency and prospects of political realization.

Gambling Related Cognitive Distortions in Adolescence: Relationships with Gambling Problems in Typically Developing and Special Needs Students.

PubMed

Taylor, Robyn N; Parker, James D A; Keefer, Kateryna V; Kloosterman, Patricia H; Summerfeldt, Laura J

2015-12-01

The present study examined the link between problematic gambling and gambling related cognitions (GRCs) in a large sample of adolescents with (N = 266) and without (N = 1,738) special education needs (SEN) between the ages of 14 and 18 years attending several high schools in eastern central Ontario. The adolescents with SENs were identified as having various learning disorders and/or internalizing and externalizing problems [e.g., attention deficit hyperactivity disorder (ADHD)]. All adolescents completed a self-report questionnaire package that included the GRC Scale (GRCS; Raylu and Oei in Addiction 99:757-769, 2004), as well as measures of problem gambling, negative affect, and ADHD symptomatology. Results showed that adolescents with SEN hold more erroneous beliefs about gambling and had a higher risk of developing problematic patterns of gambling behaviour than their typically developing peers. Moreover, the GRCS subscales were found to be strong predictors of problem gambling among adolescents both with and without SEN, accounting for a substantial amount of the variance even when controlling for the effects of age, gender, ADHD, and negative affect. It is suggested that intervention and prevention programs aimed at adolescent gambling need to give particular attention to those with SEN.

Special Education and the Hispanic Child. Proceedings from the Annual Colloquium on Hispanic Issues (2nd, New York, New York, February 5-6, 1981). ERIC/CUE Urban Diversity Series Number 74, August 1981.

ERIC Educational Resources Information Center

Martinez, Herminio, Ed.

This collection of papers examines contemporary issues and problems in bilingual special education. The first paper, by Lizette A. Cantres, discusses Federal and State laws and regulations related to bilingual special education, with respect to litigation in the case of "Jose P." The problems of assessment of bilingual children under a…

Physicians' attitude toward their ethical responsibility regarding air pollution: a qualitative research.

PubMed

Saeeditehrani, Saeedeh; Parsapour, Alireza; Nedjat, Saharnaz; Kadivar, Maliheh; Larijani, Bagher

2017-01-01

Air pollution is among the environmental problems that adversely affect people's health. There is a close relationship between medicine and environment, and as a consequence, there are ethical considerations surrounding the problem of air pollution. The present research aimed to determine physicians' attitude toward their ethical responsibility regarding air pollution, and their role in reducing it. This was a qualitative research using content analysis, conducted in Tehran University of Medical Sciences. The focus group included 21 physicians with specialties and subspecialties in pediatrics, infectious diseases, pulmonology, gynecology, and midwifery selected through predetermined sampling along with 13 personal in-depth interviews. A number of questions were asked regarding physicians' ethical responsibility to decrease environmental crises, particularly air pollution. As a result, 4 themes and 20 subthemes were extracted by assessing the focus group and interviews. These four general themes included the role of a physician as 1) an ordinary person, 2) a special citizen and a role model, 3) a professional person with special personal and social commitments, and 4) an administrator of the healthcare system. In the present research, physicians acquired a special attitude toward air pollution. The research population mentioned physicians' impact as role models for the society, as well as their educational, supervisory, informative, promotional, and administrative roles among their most important obligations regarding air pollution. It is recommended to conduct further studies on physicians' knowledge, attitude and practice regarding their responsibility toward environmental issues in order to investigate this important matter further.

[The potential of general magnetic therapy for the treatment and rehabilitation (a review)].

PubMed

Kulikov, A G; Voronina, D D

2016-01-01

This paper was designed to describe the main characteristics of general magnetic therapy and the mechanisms underlying its biological and therapeutic action. Special attention is given to the extensive application of this method in the routine clinical practice. The publications in the current scientific literature are reviewed in order to evaluate the potential of general magnetic therapy as a component of the combined treatment of various somatic pathologies, rehabilitation of the patients after surgical intervention with special reference to the management of the patients presenting with the oncological problems. The data suggesting good tolerability and high therapeutic effectiveness of the physiotherapeutic method under consideration.

Photometric redshift estimation based on data mining with PhotoRApToR

NASA Astrophysics Data System (ADS)

Cavuoti, S.; Brescia, M.; De Stefano, V.; Longo, G.

2015-03-01

Photometric redshifts (photo-z) are crucial to the scientific exploitation of modern panchromatic digital surveys. In this paper we present PhotoRApToR (Photometric Research Application To Redshift): a Java/C ++ based desktop application capable to solve non-linear regression and multi-variate classification problems, in particular specialized for photo-z estimation. It embeds a machine learning algorithm, namely a multi-layer neural network trained by the Quasi Newton learning rule, and special tools dedicated to pre- and post-processing data. PhotoRApToR has been successfully tested on several scientific cases. The application is available for free download from the DAME Program web site.

Collection of solved problems in physics

NASA Astrophysics Data System (ADS)

Koupilová, ZdeÅka; Mandíková, Dana; Snětinová, Marie

2017-01-01

To solve physics problems is a key ability which students should reach during their physics education. Ten years ago we started to develop a Collection of fully solved problems. The structure of problems' solutions is specially designed to substitute tutor's help during lesson and encourage students to solve at least some parts of a problem independently. Nowadays the database contains about 770 fully solved problems in physics in Czech, more than 100 problems in Polish and more than 140 problems in English. Other problems are still being translated. Except for physics problems, the Collection has also a mathematical part, which contains more than 300 fully solved problems in mathematics. This paper follows the presentation of the Collection of solved problems from previous years and introduces a new interface of the Collection, its enhanced functionality, new topics, newly created interface for teachers, user feedback and plans for future development. The database is placed at the website of the Department of Physics Education, Faculty of Mathematics and Physics, Charles University in Prague, the links are: http://reseneulohy.cz/fyzika (Czech version); http://www.physicstasks.eu/ (English version).

Developmental links between disobedient behavior and social classroom relationships in boys with psychiatric disorders in special education.

PubMed

Breeman, L D; van Lier, P A C; Wubbels, T; Verhulst, F C; van der Ende, J; Maras, A; Hopman, J A B; Tick, N T

2015-05-01

In mainstream education, positive relationships with teachers and peers have been found to positively influence children's behavioral development. However, high levels of classroom behavior problems may hinder the formation of such positive relationships. Therefore, findings from mainstream education cannot be generalized to special education. The present study investigated the developmental links between disobedience and positive as well as negative relationships with teachers and peers among boys in restrictive special educational settings. At three assessment waves across one school year, teacher-reports of teacher-child closeness and conflict, and peer-reports of peer acceptance, rejection and disobedience were collected among 340 boys (mean age = 10.1 years, SD = 1.58, range = 5-13) with psychiatric disorders receiving special education. Autoregressive cross-lagged models were fitted to explore the nature of these developmental links. The impact of boys' age was examined using multiple group analyses. Findings supported the importance of teacher-child conflict, but not closeness, and positive and negative peer relationships for the development of boys' disobedience, with a stronger effect of negative than positive relationships. However, teacher-child and peer relationships were not longitudinally related and the effect of boys' age was minimal. This study extends prior research by suggesting that, despite differences in educational setting and severity of behavior problems between children in mainstream and special education, reducing negative classroom interactional patterns is most important in preventing the development of problematic classroom behavior in boys with severe social-emotional and behavioral difficulties.

Parallel computing for probabilistic fatigue analysis

NASA Technical Reports Server (NTRS)

Sues, Robert H.; Lua, Yuan J.; Smith, Mark D.

1993-01-01

This paper presents the results of Phase I research to investigate the most effective parallel processing software strategies and hardware configurations for probabilistic structural analysis. We investigate the efficiency of both shared and distributed-memory architectures via a probabilistic fatigue life analysis problem. We also present a parallel programming approach, the virtual shared-memory paradigm, that is applicable across both types of hardware. Using this approach, problems can be solved on a variety of parallel configurations, including networks of single or multiprocessor workstations. We conclude that it is possible to effectively parallelize probabilistic fatigue analysis codes; however, special strategies will be needed to achieve large-scale parallelism to keep large number of processors busy and to treat problems with the large memory requirements encountered in practice. We also conclude that distributed-memory architecture is preferable to shared-memory for achieving large scale parallelism; however, in the future, the currently emerging hybrid-memory architectures will likely be optimal.

Open shop scheduling problem to minimize total weighted completion time

NASA Astrophysics Data System (ADS)

Bai, Danyu; Zhang, Zhihai; Zhang, Qiang; Tang, Mengqian

2017-01-01

A given number of jobs in an open shop scheduling environment must each be processed for given amounts of time on each of a given set of machines in an arbitrary sequence. This study aims to achieve a schedule that minimizes total weighted completion time. Owing to the strong NP-hardness of the problem, the weighted shortest processing time block (WSPTB) heuristic is presented to obtain approximate solutions for large-scale problems. Performance analysis proves the asymptotic optimality of the WSPTB heuristic in the sense of probability limits. The largest weight block rule is provided to seek optimal schedules in polynomial time for a special case. A hybrid discrete differential evolution algorithm is designed to obtain high-quality solutions for moderate-scale problems. Simulation experiments demonstrate the effectiveness of the proposed algorithms.

Perceived Stress and Use of Coping Strategies as a Response to Rapidly Changing Student Demographics

ERIC Educational Resources Information Center

Lindner, Reinhard W.; Healy, Donald E., Jr.

2004-01-01

The authors present findings from an initial information gathering and analysis of a larger Office of Special Education Programs model demonstration project, "Connections to Success." The article is based on an analysis of a teacher survey conducted at four schools in the project's partner district focused on perceived problems, sources of stress,…

Impact Study on Driving by Special Populations. Final Report. Volume II: A Guide for the Evaluation of Handicapped Drivers.

ERIC Educational Resources Information Center

Brainin, Paul A.; And Others

The second of a two-volume report on motor vehicle driving by handicapped persons presents an approach to the evaluation of drivers with 20 specific )edical problems. The guide provides information on symptoms, treatment, guidelines for determining risk levels (risk increasing and risk moderating factors), questions for the applicant, and…

Quadratic Optimisation with One Quadratic Equality Constraint

DTIC Science & Technology

2010-06-01

This report presents a theoretical framework for minimising a quadratic objective function subject to a quadratic equality constraint. The first part of the report gives a detailed algorithm which computes the global minimiser without calling special nonlinear optimisation solvers. The second part of the report shows how the developed theory can be applied to solve the time of arrival geolocation problem.

Impact of Job Design Problems and Lack of Support. Draft Version. Working Paper #6.

ERIC Educational Resources Information Center

Gersten, Russell; And Others

This paper presents implications of the path analysis procedures used to interpret data from a study of urban special education teachers' perceptions of working conditions. The analysis looked at a broad range of factors that could affect teacher plans to leave the field. An overall finding emerging from the analysis was that the same fundamental…

High pressure rotary piston coal feeder

NASA Technical Reports Server (NTRS)

Gardner, J. F.; Gencsoy, H. T.; Strimbeck, D. C.

1977-01-01

This feeder concept uniquely combines the functions of solids feeding, metering, and pressurization into one compact system. Success with the rotary-piston concept would provide a lower-cost alternative to lock-hopper systems. The design of the feeder is presented, with special emphasis on the difficult problem of seal design. Initial tests will be to check seal performance. Subsequent tests will evaluate solids-feeding ability.

The Writing of Expository Texts in Early Grades: What Predicative Analysis Teaches Us

ERIC Educational Resources Information Center

Gagnon, Renee; Ziarko, Helene

2012-01-01

This paper presents the results of a predicative analysis led on comparison and problem-solution texts produced by pupils of the second and third grades of primary school following a set of reading and writing instructional activities. The production of those texts is of a special challenge to the young writers because of the cognitive and…

Keeping Kids Safe: A Guide for Safe Food Handling & Sanitation for Child Care Providers.

ERIC Educational Resources Information Center

Food Safety and Inspection Service (USDA), Washington, DC.

Because children under age 5 are susceptible to food-borne illnesses and children in diapers present special sanitation and health problems, food safety and sanitation are emerging as important issues for child care providers. This booklet is designed to give providers and parents a quick and easy reference for food safety and sanitation. The…

A Pedagogical Trebuchet: A Case Study in Experimental History and History Pedagogy

ERIC Educational Resources Information Center

Brice, Lee L.; Catania, Steven

2012-01-01

A common problem history teachers face regardless of their field of specialization is how to help students find answers to the most difficult historical questions, those for which the sources are unavailable or inaccessible, and teach them to do so in a methodologically valid manner. This article presents a case study which shows how a project in…

Effects of an Informational Brochure, Lottery-Based Financial Incentive, and Public Posting on Absenteeism of Direct-Care Human Services Employees

ERIC Educational Resources Information Center

Luiselli, James K.; DiGennaro Reed, Florence D.; Christian, Walter P.; Markowski, Andrea; Rue, Hanna C.; St. Amand, CarrieAnne; Ryan, Chad J.

2009-01-01

Chronic absenteeism is a problem encountered by many human services organizations. Large-scale intervention projects to reduce staff absences have incorporated applied behavior analysis methods but there are few studies in the extant literature. In the present study, the authors record staff absenteeism at a specialized school for students with…

Valuable and Professional Orientations as a Social and Psychological Resource of Development of a Modern Worker

ERIC Educational Resources Information Center

Zeer, Evald F.; Bragina, Iuliia

2016-01-01

The relevance of the researched problem is caused by the fact that at present there is the sharpest shortage of highly skilled personnel at the Russian enterprises and, therefore, studying of features of valuable and professional orientations of representatives of working professions is of special interest. The purpose of the article consists in…

[Oral healthcare for the persons with special needs.

PubMed

Morisaki, Ichijiro

The field of special care dentistry is rapidly gaining recognition as a service that should be provided to the persons with physical, mental or intellectual disabilities by general practitioner, pediatric or geriatric dentists as well as dental hygienists. Because the oral healthcare and dental treatments are given in the narrow space of oral cavity and also accompanying technical difficulties with high risk of injury, the special needs patients are treated under being controlled their behavior or body motion by applying psychological, physical or pharmacological techniques. Those persons also manifest specific oral signs and symptoms such as dental caries, periodontal diseases as well as high incidence of dental hypoplasia, oro-facial trauma or drug-induced gingival overgrowth. The children with developmental disorders especially such as autism spectrum disorder(ASD), attention-deficit/hyperactivity disorder(AD/HD), or specific learning disorder(LD), and those with medical care needs at all times are also increasing relatively in Japan with declining birthrate. Those children have specific dental problems and require the special oral healthcare. This article presents the current status of oral healthcare for the persons with special needs.

The integrated control concept and its relevance to current integrated pest management in California fresh market grapes.

PubMed

Bentley, Walter J

2009-12-01

The foundation of an integrated pest management program involves valid treatment thresholds, accurate and simple monitoring methods, effective natural controls, selective pesticides and trained individuals who can implement the concept. The Integrated Control Concept written by Stern, Smith, van den Bosch and Hagen elucidated each of these points in an alfalfa ecosystem. Alfalfa hay (Medicago sativa L.) has a low per acre value, requires little hand labor and is primarily marketed in the USA. In contrast, fresh market table grape (Vitis vinifera L.) has a high per acre value, requires frequent hand labor operations, suffers unacceptable cosmetic damage and is marketed throughout both the USA and the world. Each of the components of a working IPM program is present in table grape production. Marketing grapes to foreign countries presents special problems with pests considered invasive and where residue tolerances for some selective insecticides are lacking. However, fresh market grape farmers are still able to deal with these special problems and utilize an IPM program that has resulted in a 42% reduction in broad-spectrum insecticide use from 1995 to 2007. (c) 2009 Society of Chemical Industry.

Two cases of rickets presenting with poor growth, hypotonia, and respiratory problems.

PubMed

Wouters, E; Wojciechowski, M; de Vries, E

2015-06-01

Rickets is a rare disease in developed countries. In children, it is a disease which affects growing bone. Depending on the severity, it can present with a wide variety of symptoms. Because it is such a rare disease in developed countries, symptoms suggesting rickets are often not easily recognized. This can cause a delay in diagnosing and treating rickets. Often unnecessary and sometimes invasive investigations are performed. First leading clues to rickets on physical examination are poor growth, especially length, thickening of wrists, bow legs, and craniotabes. At further examination, special attention should be paid to osteopenia and cupping and fraying at the metaphyses on X-rays. Laboratory results suggestive for rickets are elevated alkaline phosphatase and disturbances in calcium and phosphate homeostasis. In this report, we present two cases presenting with poor growth, severe pain, and respiratory problems secondary to calcipenic rickets.

Special Education in Nigeria.

ERIC Educational Resources Information Center

Abang, Theresa B.

1992-01-01

This article discusses the special education system in Nigeria, focusing on integration; training of special educators; medical, health, and welfare services for children with disabilities; recreational facilities; employment opportunities; national planning; and problems and successes. (JDD)

A VLBI variance-covariance analysis interactive computer program. M.S. Thesis

NASA Technical Reports Server (NTRS)

Bock, Y.

1980-01-01

An interactive computer program (in FORTRAN) for the variance covariance analysis of VLBI experiments is presented for use in experiment planning, simulation studies and optimal design problems. The interactive mode is especially suited to these types of analyses providing ease of operation as well as savings in time and cost. The geodetic parameters include baseline vector parameters and variations in polar motion and Earth rotation. A discussion of the theroy on which the program is based provides an overview of the VLBI process emphasizing the areas of interest to geodesy. Special emphasis is placed on the problem of determining correlations between simultaneous observations from a network of stations. A model suitable for covariance analyses is presented. Suggestions towards developing optimal observation schedules are included.

Providing health services for children with special health care needs on out-of-state field trips.

PubMed

Erwin, Karen; Clark, Saudi; Mercer, Sharon Eli

2014-03-01

An increasing number of children attend school with special health care needs. Title II of the Americans with Disabilities Act (ADA) requires all school-sponsored activities to be easily accessible to all students. School-sponsored field trips enhance students' education, and students who require health services may not be excluded. For students with special health care needs, fully participating in the field trip experience presents unique challenges. These challenges are further complicated by out-of-state field trips due to variances in nurse practice acts, variances in delegation regulations, and most recently, state-by-state participation or nonparticipation in the Nurse Licensure Compact. Review of state laws, regulations, and nursing scope of practice for school health services is critical when planning and problem solving for students requiring health services on out-of-state field trips.

[Identification of special quality eggs with NIR spectroscopy technology based on symbol entropy feature extraction method].

PubMed

Zhao, Yong; Hong, Wen-Xue

2011-11-01

Fast, nondestructive and accurate identification of special quality eggs is an urgent problem. The present paper proposed a new feature extraction method based on symbol entropy to identify near infrared spectroscopy of special quality eggs. The authors selected normal eggs, free range eggs, selenium-enriched eggs and zinc-enriched eggs as research objects and measured the near-infrared diffuse reflectance spectra in the range of 12 000-4 000 cm(-1). Raw spectra were symbolically represented with aggregation approximation algorithm and symbolic entropy was extracted as feature vector. An error-correcting output codes multiclass support vector machine classifier was designed to identify the spectrum. Symbolic entropy feature is robust when parameter changed and the highest recognition rate reaches up to 100%. The results show that the identification method of special quality eggs using near-infrared is feasible and the symbol entropy can be used as a new feature extraction method of near-infrared spectra.

Structural topology optimization with fuzzy constraint

NASA Astrophysics Data System (ADS)

Rosko, Peter

2011-12-01

The paper deals with the structural topology optimization with fuzzy constraint. The optimal topology of structure is defined as a material distribution problem. The objective is the weight of the structure. The multifrequency dynamic loading is considered. The optimal topology design of the structure has to eliminate the danger of the resonance vibration. The uncertainty of the loading is defined with help of fuzzy loading. Special fuzzy constraint is created from exciting frequencies. Presented study is applicable in engineering and civil engineering. Example demonstrates the presented theory.

Audience Analysis for "The Making, Shaping and Treating of Steel": A Pilot Study. Final Report Presented to United States Steel and the Association of Iron and Steel Engineers. CDC Technical Report No. 10.

ERIC Educational Resources Information Center

Stein, Mark J.; And Others

Prompted by the realization that a reference text presents special problems in audience address since there is typically a diverse set of users, a study was designed to provide preliminary data on the use of the reference text, "The Making, Shaping and Treating of Steel," a landmark book in the steel industry. Data on the use of the text were…

Critical Issues in the Understanding of Young Elementary School Students at Risk for Problems in Written Expression: Introduction to the Special Series.

PubMed

Coker, David L; Kim, Young-Suk Grace

In this introduction to the special series "Critical Issues in the Understanding of Young Elementary School Students at Risk for Problems in Written Expression," we consider some of the contextual factors that have changed since a similar special issue was published in the Journal of Learning Disabilities in 2002. We also explore how the five articles included in this special series address the following important themes: early writing development, identification of students with writing difficulties, and effective interventions for struggling writers. In conclusion, we envision future directions to advance the field.

Desperately Seeking Special Ed Teachers

ERIC Educational Resources Information Center

Butler, Kevin

2008-01-01

It's no secret that the dearth of special education teachers has created huge headaches for district human resources departments, especially in suburban and rural areas. In addition to insufficient numbers of candidates applying for special education jobs, retention of special education teachers is an ever-greater problem, as research indicates…

Recent advances in computational-analytical integral transforms for convection-diffusion problems

NASA Astrophysics Data System (ADS)

Cotta, R. M.; Naveira-Cotta, C. P.; Knupp, D. C.; Zotin, J. L. Z.; Pontes, P. C.; Almeida, A. P.

2017-10-01

An unifying overview of the Generalized Integral Transform Technique (GITT) as a computational-analytical approach for solving convection-diffusion problems is presented. This work is aimed at bringing together some of the most recent developments on both accuracy and convergence improvements on this well-established hybrid numerical-analytical methodology for partial differential equations. Special emphasis is given to novel algorithm implementations, all directly connected to enhancing the eigenfunction expansion basis, such as a single domain reformulation strategy for handling complex geometries, an integral balance scheme in dealing with multiscale problems, the adoption of convective eigenvalue problems in formulations with significant convection effects, and the direct integral transformation of nonlinear convection-diffusion problems based on nonlinear eigenvalue problems. Then, selected examples are presented that illustrate the improvement achieved in each class of extension, in terms of convergence acceleration and accuracy gain, which are related to conjugated heat transfer in complex or multiscale microchannel-substrate geometries, multidimensional Burgers equation model, and diffusive metal extraction through polymeric hollow fiber membranes. Numerical results are reported for each application and, where appropriate, critically compared against the traditional GITT scheme without convergence enhancement schemes and commercial or dedicated purely numerical approaches.

Special Programs in Medical Library Education, 1957-1971: Part I: Definition of the Problem and Research Design *

PubMed Central

Roper, Fred W.

1973-01-01

This report discusses the background and design of a study on special programs of education for medical librarianship in the United States. Between 1957 and 1971, 238 persons completed special programs in medical librarianship. Since little information has been available concerning the occupational success of these individuals, the study was undertaken (1) to determine the nature and distinguishing characteristics of the special programs of education for medical librarianship in the United States and (2) to provide some quantitative evidence of the value of those programs by studying a group of professional medical librarians who have had specialized training and a group of practicing medical librarians who have not had specialized training and comparing and correlating the data with regard to selected characteristics. The findings of the study will be presented in three future reports: (1) a descriptive analysis of the programs; (2) a description of the characteristics of all former trainees in medical librarianship who responded to a questionnaire and a discussion of their reactions to their training programs; and (3) a comparison, based on selected characteristics, of a group of former trainees who are currently employed in medical libraries with a group of medical librarians who did not go through special training programs. PMID:4702806

Towards Improving Content and Instruction of the "TESOL/TEFL for Special Needs" Course: An Action Research Study

ERIC Educational Resources Information Center

Abdallah, Mahmoud M. S.

2017-01-01

Action research (AR)--as a participatory, problem-oriented methodology--has been employed recently in Egypt to resolve complicated classroom and learning problems, and provide context-based solutions. Simultaneously, new "special education" courses have been included recently in the university bylaws of Egyptian colleges of education.…

Special Problems of the Elderly.

ERIC Educational Resources Information Center

Hull, Kathleen V.

Within the next 40 years, people age 65 and over will comprise 20% of the population, yet problems facing this older generation and their families are just coming to the attention of researchers and the public. Accordingly, this literature review focuses on the special needs of older adults and their families. After an introductory overview, the…

Future Primary and Preschool Pedagogy Specialization Students' Mathematical Problem Solving Competency

ERIC Educational Resources Information Center

Marchis, Iuliana

2013-01-01

Developing the problem solving competency is one of the main goals of school education, as it is a very important competency in someone's everyday life and career as well. Mathematics is highly appropriate for developing this competence. This research studies future Primary and Preschool Pedagogy specialization students' mathematical problem…

Long-term Internship through Cooperative Education with Regional Industries

NASA Astrophysics Data System (ADS)

Takahashi, Kenzo; Hase, Hiroyuki

The long term internship is one of special educational programs for graduate students of Graduate School of Engineering in University of Fukui. This is a collaborative program between university and industries where selected post-graduate students are dispatched to companies for a long term and educated in real business environments. It is the final goal of the program to develop sophisticated specialists who would be able to catch the business strategy in industries and solve any problems by themselves. The program is managed in a semester (6 months) and contains 1.5 month prior education of preliminary special knowledge, ethics and secrecy, about 3 month dispatch with long-term internship, and 1.5 month post-education for complementary education and presentation. This paper presents the effect of this program which has been evolving since 2005.

Neutron and gamma-ray energy reconstruction for characterization of special nuclear material

DOE PAGES

Clarke, Shaun D.; Hamel, Michael C.; Di fulvio, Angela; ...

2017-06-30

Characterization of special nuclear material may be performed using energy spectroscopy of either the neutron or gamma-ray emissions from the sample. Gamma-ray spectroscopy can be performed relatively easily using high-resolution semiconductors such as high-purity germanium. Neutron spectroscopy, by contrast, is a complex inverse problem. Here, results are presented for 252Cf and PuBe energy spectra unfolded using a single EJ309 organic scintillator; excellent agreement is observed with the reference spectra. Neutron energy spectroscopy is also possible using a two-plane detector array, whereby time-offlight kinematics can be used. With this system, energy spectra can also be obtained as a function of position.more » Finally, spatial-dependent energy spectra are presented for neutron and gamma-ray sources that are in excellent agreement with expectations.« less

Neutron and gamma-ray energy reconstruction for characterization of special nuclear material

DOE Office of Scientific and Technical Information (OSTI.GOV)

Clarke, Shaun D.; Hamel, Michael C.; Di fulvio, Angela

Characterization of special nuclear material may be performed using energy spectroscopy of either the neutron or gamma-ray emissions from the sample. Gamma-ray spectroscopy can be performed relatively easily using high-resolution semiconductors such as high-purity germanium. Neutron spectroscopy, by contrast, is a complex inverse problem. Here, results are presented for 252Cf and PuBe energy spectra unfolded using a single EJ309 organic scintillator; excellent agreement is observed with the reference spectra. Neutron energy spectroscopy is also possible using a two-plane detector array, whereby time-offlight kinematics can be used. With this system, energy spectra can also be obtained as a function of position.more » Finally, spatial-dependent energy spectra are presented for neutron and gamma-ray sources that are in excellent agreement with expectations.« less

A radial basis function Galerkin method for inhomogeneous nonlocal diffusion

DOE PAGES

Lehoucq, Richard B.; Rowe, Stephen T.

2016-02-01

We introduce a discretization for a nonlocal diffusion problem using a localized basis of radial basis functions. The stiffness matrix entries are assembled by a special quadrature routine unique to the localized basis. Combining the quadrature method with the localized basis produces a well-conditioned, sparse, symmetric positive definite stiffness matrix. We demonstrate that both the continuum and discrete problems are well-posed and present numerical results for the convergence behavior of the radial basis function method. As a result, we explore approximating the solution to anisotropic differential equations by solving anisotropic nonlocal integral equations using the radial basis function method.

Evaluation of the Hip: History and Physical Examination

PubMed Central

2007-01-01

Examination of a painful hip is fairly concise and reliable at detecting the presence of a hip joint problem. Hip joint disorders often go undetected, leading to the development of secondary disorders. Using a thoughtful approach and methodical examination techniques, most hip joint problems can be detected and a proper treatment strategy can then be implemented based on an accurate diagnosis. The purpose of this clinical commentary is to present a systematic examination process that outlines important components in each of the evaluation areas of history and physical examination (including inspection, measurements, symptom localization, muscle strength, and special tests). PMID:21509142

Dissolving variables in connectionist combinatory logic

NASA Technical Reports Server (NTRS)

Barnden, John; Srinivas, Kankanahalli

1990-01-01

A connectionist system which can represent and execute combinator expressions to elegantly solve the variable binding problem in connectionist networks is presented. This system is a graph reduction machine utilizing graph representations and traversal mechanisms similar to ones described in the BoltzCONS system of Touretzky (1986). It is shown that, as combinators eliminate variables by introducing special functions, these functions can be connectionistically implemented without reintroducing variable binding. This approach 'dissolves' an important part of the variable binding problem, in that a connectionist system still has to manipulate complex data structures, but those structures and their manipulations are rendered more uniform.

Common Sports-Related Infections: A Review on Clinical Pictures, Management and Time to Return to Sports

PubMed Central

Ahmadinejad, Zahra; Alijani, Neda; Mansori, Sedigeh; Ziaee, Vahid

2014-01-01

There is a relationship between exercise and changes in immunity. So athletes are prone to different medical problems such as injuries and infections. Infection is an important medical problem which could be a reason for athletes’ absence from training. The relationship between physical activity and immune system, characteristics of different types of infections in athletes with emphasis on special clinical presentations or complications, time to return to physical activity and training and strategies to prevent development and transmission of infections in athletes or physically active people are the main topics of this review. PMID:24868426

Common sports-related infections: a review on clinical pictures, management and time to return to sports.

PubMed

Ahmadinejad, Zahra; Alijani, Neda; Mansori, Sedigeh; Ziaee, Vahid

2014-03-01

There is a relationship between exercise and changes in immunity. So athletes are prone to different medical problems such as injuries and infections. Infection is an important medical problem which could be a reason for athletes' absence from training. The relationship between physical activity and immune system, characteristics of different types of infections in athletes with emphasis on special clinical presentations or complications, time to return to physical activity and training and strategies to prevent development and transmission of infections in athletes or physically active people are the main topics of this review.

Special Education Teacher Burnout and ACT

ERIC Educational Resources Information Center

Emery, Debra W.; Vandenberg, Brian

2010-01-01

Special educators are a high risk group, prone to low job satisfaction, low self-efficacy, and increased stress and burnout. The attrition rate of special educators is particularly high, contributing to an overall shortage of qualified teachers throughout the United States. While the problems of special educators are widely discussed in the…

Rethinking Special Education for a New Century.

ERIC Educational Resources Information Center

Finn, Chester E., Jr., Ed.; Rotherham, Andrew J., Ed.; Hokanson, Charles R., Jr., Ed.

This book scrutinizes the education now being received by 6 million U.S. children with disabilities. It identifies the problems that currently beset special education, analyzes their causes, and suggests solutions. Chapters include: (1) "The Evolution of the Federal Role" (Tyce Palmaffy); (2) "Time To Make Special Education 'Special' Again" (Wade…

The Problem Is Education Not "Special Education"

ERIC Educational Resources Information Center

Fellner, Gene

2015-01-01

In his article, "Urban special education policy and the lived experience of stigma in a high school science classroom," Chris Hale persuasively argues that the Individuals with Disabilities Education Act and subsequent special education policies have largely failed to serve special education students who are stigmatized by their deficit…

Brief Strategic Family Therapy: An Intervention to Reduce Adolescent Risk Behavior

PubMed Central

Szapocznik, José; Schwartz, Seth J.; Muir, Joan A.; Brown, C. Hendricks

2013-01-01

This article reviews the brief strategic family therapy (BSFT; J. Szapocznik, M. A. Scopetta, & O. E. King, 1978, The effect and degree of treatment comprehensiveness with a Latino drug abusing population. In D. E. Smith, S. M. Anderson, M. Burton, N. Gotlieb, W. Harvey, & T. Chung, Eds, A multicultural view of drug abuse, pp. 563–573, Cambridge, MA: G. K. Hall & J. Szapocznik, M. A. Scopetta, & O. E. King, 1978, Theory and practice in matching treatment to the special characteristics and problems of Cuban immigrants, Journal of Community Psychology, 6, 112–122.) approach to treating adolescent drug abuse and related problem behaviors. The treatment intervention is reviewed, including specialized features such as engagement of difficult families. Empirical evidence supporting the BSFT approach is presented. We then illustrate ways in which clinicians can use the model with troubled families whose adolescents may be at risk for drug use and HIV. Finally, future directions for BSFT research are described. PMID:23936750

Some Muirhead Mean Operators for Intuitionistic Fuzzy Numbers and Their Applications to Group Decision Making.

PubMed

Liu, Peide; Li, Dengfeng

2017-01-01

Muirhead mean (MM) is a well-known aggregation operator which can consider interrelationships among any number of arguments assigned by a variable vector. Besides, it is a universal operator since it can contain other general operators by assigning some special parameter values. However, the MM can only process the crisp numbers. Inspired by the MM' advantages, the aim of this paper is to extend MM to process the intuitionistic fuzzy numbers (IFNs) and then to solve the multi-attribute group decision making (MAGDM) problems. Firstly, we develop some intuitionistic fuzzy Muirhead mean (IFMM) operators by extending MM to intuitionistic fuzzy information. Then, we prove some properties and discuss some special cases with respect to the parameter vector. Moreover, we present two new methods to deal with MAGDM problems with the intuitionistic fuzzy information based on the proposed MM operators. Finally, we verify the validity and reliability of our methods by using an application example, and analyze the advantages of our methods by comparing with other existing methods.

{lambda} elements for one-dimensional singular problems with known strength of singularity

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wong, K.K.; Surana, K.S.

1996-10-01

This paper presents a new and general procedure for designing special elements called {lambda} elements for one dimensional singular problems where the strength of the singularity is know. The {lambda} elements presented here are of type C{sup 0}. These elements also provide inter-element C{sup 0} continuity with p-version elements. The {lambda} elements do not require a precise knowledge of the extent of singular zone, i.e., their use may be extended beyond the singular zone. When {lambda} elements are used at the singularity, a singular problem behaves like a smooth problem thereby eliminating the need for h, p-adaptive processes all together.more » One dimensional steady state radial flow of an upper convected Maxwell fluid is considered as a sample problem. Least squares approach (or least squares finite element formulation: LSFEF) is used to construct the integral form (error functional I) from the differential equations. Numerical results presented for radially inward flow with inner radius r{sub i} = 0.1, 0.01, 0.001, 0.0001, 0.00001, and Deborah number of 2 (De = 2) demonstrate the accuracy, faster convergence of the iterative solution procedure, faster convergence rate of the error functional and mesh independent characteristics of the {lambda} elements regardless of the severity of the singularity.« less

29 CFR 778.311 - Flat rate for special job performed in overtime hours.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 29 Labor 3 2011-07-01 2011-07-01 false Flat rate for special job performed in overtime hours. 778... COMPENSATION Special Problems Lump Sum Attributed to Overtime § 778.311 Flat rate for special job performed in... paid a flat rate for a special job performed during overtime hours, without regard to the time actually...

Special Education Teacher Perception of Administrative Supports That Encourage, Decrease Burnout, and Reduce Attrition

ERIC Educational Resources Information Center

Beebe, Jay

2017-01-01

The field of special education is facing a shortage of teachers. A shortage of special education teachers is an example of a pressing issue within education. The problem is that teacher attrition rates are among the highest within special education. Many special education teachers are leaving the profession after a few years of teaching for varied…

The Voices of Special Educators: How Do Special Educators Teach English Language Learners Who Are Receiving Special Education Services?

ERIC Educational Resources Information Center

DuBois, Elizabeth Ann

2017-01-01

Disproportionality in special education has been examined from various perspectives over a 50-year period. English Language Learner (ELL) students have been included in the discussion among researchers in the past two decades as a disproportionate number of ELL students are referred to special education. Though the problem of disproportionality…

["Vision through the hands": experience of a project].

PubMed

Ventura, Roberta; Ventura, Liana; Brandt, Carlos; Ferraz, Daniel; Ventura, Bruna

2007-01-01

The Project "Vision through the hands" was performed by the Altino Ventura Foundation, with the purpose of investigating the present child situation with multiple disabilities in the state of Pernambuco, Brazil. Birth and social conditions, social problems, and difficulty in accessing the specialized services were evaluated, aiming to collect relevant data with the goal of posterior implantation of a specialized diagnosis and treatment center. Ophthalmologic care and proper treatment were offered. Three hundred and nine children from five reference institutions in disabilities were attended, on six non consecutive days. All cases underwent ophthalmologic examinations and parent interviews. During the waiting time between the ophthalmologic visits and parent interviews the patients performed activities with artists. A multidisciplinary team of 31 professionals was available. According to parent information 83.1% of the patients were considered included in the society and only 45.4% attended school (normal or special). The difficulty to get access to ophthalmologic service was reported by 51.1%. Two hundred and seventy children with multiple disabilities were identified, 154 (56.2%) of whom underwent an ophthalmologic examination for the first time, and 33.0% had low visual acuity (inferior to 20/60 Snellen). The most frequent diagnoses were: refraction error, strabismus, ambliopia, alterations of optic nerve (glaucoma and atrophy), and cataract. Eighty-four glasses were prescribed. This project was pioneer in the region, allowing to obtain the information about important problems regarding multiple disabilities, and making possible ophthalmologic care and specialized treatment to the children.

A Taylor weak-statement algorithm for hyperbolic conservation laws

NASA Technical Reports Server (NTRS)

Baker, A. J.; Kim, J. W.

1987-01-01

Finite element analysis, applied to computational fluid dynamics (CFD) problem classes, presents a formal procedure for establishing the ingredients of a discrete approximation numerical solution algorithm. A classical Galerkin weak-statement formulation, formed on a Taylor series extension of the conservation law system, is developed herein that embeds a set of parameters eligible for constraint according to specification of suitable norms. The derived family of Taylor weak statements is shown to contain, as special cases, over one dozen independently derived CFD algorithms published over the past several decades for the high speed flow problem class. A theoretical analysis is completed that facilitates direct qualitative comparisons. Numerical results for definitive linear and nonlinear test problems permit direct quantitative performance comparisons.

Extended Islands of Tractability for Parsimony Haplotyping

NASA Astrophysics Data System (ADS)

Fleischer, Rudolf; Guo, Jiong; Niedermeier, Rolf; Uhlmann, Johannes; Wang, Yihui; Weller, Mathias; Wu, Xi

Parsimony haplotyping is the problem of finding a smallest size set of haplotypes that can explain a given set of genotypes. The problem is NP-hard, and many heuristic and approximation algorithms as well as polynomial-time solvable special cases have been discovered. We propose improved fixed-parameter tractability results with respect to the parameter "size of the target haplotype set" k by presenting an O *(k 4k )-time algorithm. This also applies to the practically important constrained case, where we can only use haplotypes from a given set. Furthermore, we show that the problem becomes polynomial-time solvable if the given set of genotypes is complete, i.e., contains all possible genotypes that can be explained by the set of haplotypes.

Gorlin-Goltz syndrome.

PubMed

Kohli, Munish; Kohli, Monica; Sharma, Naresh; Siddiqui, Saif Rauf; Tulsi, S P S

2010-01-01

Gorlin-Goltz syndrome is an inherited autosomal dominant disorder with complete penetrance and extreme variable expressivity. The authors present a case of an 11-year-old girl with typical features of Gorlin-Goltz syndrome with special respect to medical and dental problems which include multiple bony cage deformities like spina bifida with scoliosis having convexity to the left side, presence of an infantile uterus and multiple odonogenic keratocysts in the maxillofacial region.

A unified approach to VLSI layout automation and algorithm mapping on processor arrays

NASA Technical Reports Server (NTRS)

Venkateswaran, N.; Pattabiraman, S.; Srinivasan, Vinoo N.

1993-01-01

Development of software tools for designing supercomputing systems is highly complex and cost ineffective. To tackle this a special purpose PAcube silicon compiler which integrates different design levels from cell to processor arrays has been proposed. As a part of this, we present in this paper a novel methodology which unifies the problems of Layout Automation and Algorithm Mapping.

Education in Crisis: A Report on Decentralization, Teacher Training and Curriculum in the New York City Public Schools.

ERIC Educational Resources Information Center

New York City Commission on Human Rights, NY.

This document contains testimony presented at the public hearings of the New York City Commission on Human Rights. The hearings of this commission focused on two problem areas--decentralization and teacher training, and curriculum. The burning issues of anti-Semitism and black or white racism in the schools were concerns of a special investigatory…

Teachers' Reported Use of Instructional and Behavior Management Practices for Students with Behavior Problems: Relationship to Role and Level of Training in ADHD

ERIC Educational Resources Information Center

Martinussen, Rhonda; Tannock, Rosemary; Chaban, Peter

2011-01-01

The present study examined general and special education teachers' self-reported level of in-service training in attention-deficit hyperactivity disorder (ADHD), a common childhood mental health disorder, and the relationship between teachers' level of training in ADHD and their reported use of a range of recommended instructional and behavior…

Proceedings of a Workshop Sponsored by the Texas Migrant Council on Child Abuse and Neglect in the Mexican American Community.

ERIC Educational Resources Information Center

Redlinger, Lawrence J.; Eller, Robin L.

The unique needs of migrant farmworkers concerning prevention of child abuse and neglect both at home and at work are presented as the focus of a group of nine workshops. Complex problems facing migrants and their families are discussed in depth in sessions covering services, for pre-school and school aged children, special children, emergency…

A SURVEY OF VISUAL AIDS IN SCHOOLS AND CLASSES FOR THE DEAF IN THE UNITED STATES.

ERIC Educational Resources Information Center

KUBIS, JOHN J.; SCHEIN, JEROME D.

INFORMATION CONCERNING VISUAL PRESENTATION DEVICES, THEIR USE IN THE EDUCATION OF THE DEAF, AND THEIR SPECIAL PROBLEMS WERE SURVEYED. QUESTIONNAIRES WERE SENT TO ALL SCHOOLS AND CLASSES FOR THE DEAF IN THE UNITED STATES DURING THE FALL SEMESTER OF 1961-62. THE RESPONSE WAS 55.9 PERCENT OF THE QUESTIONNAIRES MAILED. INTERVIEWS WERE HELD WITH A…

Norms and the Perception of Events

DTIC Science & Technology

1992-01-31

Experimental Psychology: Human Perception and Performance. 12, 1986, 445-454. Brickman, P., and D.T. Campbell. Hedonic relativism and planning the good ...interesting problem, which we plan to explore in further work. Table 1-3 presents results for conditions involving objects, actions and changes. We...following stem completion appeared: Alfred’s performance on the fourth afternoon was [] Very Good [I Good [] Fairly Good [I Nothing Special [] Rather Bad

Specialized Silicon Compilers for Language Recognition.

DTIC Science & Technology

1984-07-01

realizations of non-deterministic automata have been reported that solve these problems in diffierent ways. Floyd and Ullman [ 281 have presented a...in Applied Mathematics, pages 19-31. American Mathematical Society, 1967. [ 281 Floyd, R. W. and J. D. Ullman. The Compilation of Regular Expressions...Shannon (editor). Automata Studies, chapter 1, pages 3-41. Princeton University Press, Princeton. N. J., 1956. [44] Kohavi, Zwi . Switching and Finite

Subjective Mental Health, Peer Relations, Family, and School Environment in Adolescents with Intellectual Developmental Disorder: A First Report of a New Questionnaire Administered on Tablet PCs

ERIC Educational Resources Information Center

Boström, Petra; Johnels, Jakob Åsberg; Thorson, Maria; Broberg, Malin

2016-01-01

Few studies have explored the subjective mental health of adolescents with intellectual disabilities, while proxy ratings indicate an overrepresentation of mental health problems. The present study reports on the design and an initial empirical evaluation of the Well-being in Special Education Questionnaire (WellSEQ). Questions, response scales,…

The Catastrophic State of Catastrophic Health Care Coverage. Hearing before the Special Committee on Aging. United States Senate, One Hundredth Congress, First Session (Birmingham, Alabama).

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. Senate Special Committee on Aging.

This document presents witnesses' testimonies and prepared statements from the Senate hearing held in Birmingham, Alabama to alert the public to the problems associated with catastrophic illness; learn what community services exist for older adults; and clarify what requirements for services, research, and education must be met to formulate an…

Learning for Economic Self-Sufficiency: Constructing Pedagogies of Hope among Low-Income, Low-Literate Adults. Adult Education Special Topics: Theory, Research and Practice in LifeLong Learning

ERIC Educational Resources Information Center

Alfred, Mary V., Ed.

2010-01-01

In a most timely volume addressing many of the connections among current fiscal and employment crises to adult education, Learning for Economic Self-Sufficiency highlights the problems and challenges that low-literate adults encounter in various environments. Moreover, this book presents strategies for addressing the chronic illiteracy among…

Chassis optimization as a cornerstone for the application of synthetic biology based strategies in microbial secondary metabolism.

PubMed

Beites, Tiago; Mendes, Marta V

2015-01-01

The increased number of bacterial genome sequencing projects has generated over the last years a large reservoir of genomic information. In silico analysis of this genomic data has renewed the interest in bacterial bioprospecting for bioactive compounds by unveiling novel biosynthetic gene clusters of unknown or uncharacterized metabolites. However, only a small fraction of those metabolites is produced under laboratory-controlled conditions; the remaining clusters represent a pool of novel metabolites that are waiting to be "awaken". Activation of the biosynthetic gene clusters that present reduced or no expression (known as cryptic or silent clusters) by heterologous expression has emerged as a strategy for the identification and production of novel bioactive molecules. Synthetic biology, with engineering principles at its core, provides an excellent framework for the development of efficient heterologous systems for the expression of biosynthetic gene clusters. However, a common problem in its application is the host-interference problem, i.e., the unpredictable interactions between the device and the host that can hamper the desired output. Although an effort has been made to develop orthogonal devices, the most proficient way to overcome the host-interference problem is through genome simplification. In this review we present an overview on the strategies and tools used in the development of hosts/chassis for the heterologous expression of specialized metabolites biosynthetic gene clusters. Finally, we introduce the concept of specialized host as the next step of development of expression hosts.

Efficient block preconditioned eigensolvers for linear response time-dependent density functional theory

DOE Office of Scientific and Technical Information (OSTI.GOV)

Vecharynski, Eugene; Brabec, Jiri; Shao, Meiyue

Within this paper, we present two efficient iterative algorithms for solving the linear response eigenvalue problem arising from the time dependent density functional theory. Although the matrix to be diagonalized is nonsymmetric, it has a special structure that can be exploited to save both memory and floating point operations. In particular, the nonsymmetric eigenvalue problem can be transformed into an eigenvalue problem that involves the product of two matrices M and K. We show that, because MK is self-adjoint with respect to the inner product induced by the matrix K, this product eigenvalue problem can be solved efficiently by amore » modified Davidson algorithm and a modified locally optimal block preconditioned conjugate gradient (LOBPCG) algorithm that make use of the K-inner product. Additionally, the solution of the product eigenvalue problem yields one component of the eigenvector associated with the original eigenvalue problem. We show that the other component of the eigenvector can be easily recovered in an inexpensive postprocessing procedure. As a result, the algorithms we present here become more efficient than existing methods that try to approximate both components of the eigenvectors simultaneously. In particular, our numerical experiments demonstrate that the new algorithms presented here consistently outperform the existing state-of-the-art Davidson type solvers by a factor of two in both solution time and storage.« less

Efficient block preconditioned eigensolvers for linear response time-dependent density functional theory

DOE Office of Scientific and Technical Information (OSTI.GOV)

Vecharynski, Eugene; Brabec, Jiri; Shao, Meiyue

In this article, we present two efficient iterative algorithms for solving the linear response eigenvalue problem arising from the time dependent density functional theory. Although the matrix to be diagonalized is nonsymmetric, it has a special structure that can be exploited to save both memory and floating point operations. In particular, the nonsymmetric eigenvalue problem can be transformed into an eigenvalue problem that involves the product of two matrices M and K. We show that, because MK is self-adjoint with respect to the inner product induced by the matrix K, this product eigenvalue problem can be solved efficiently by amore » modified Davidson algorithm and a modified locally optimal block preconditioned conjugate gradient (LOBPCG) algorithm that make use of the K-inner product. The solution of the product eigenvalue problem yields one component of the eigenvector associated with the original eigenvalue problem. We show that the other component of the eigenvector can be easily recovered in an inexpensive postprocessing procedure. As a result, the algorithms we present here become more efficient than existing methods that try to approximate both components of the eigenvectors simultaneously. In particular, our numerical experiments demonstrate that the new algorithms presented here consistently outperform the existing state-of-the-art Davidson type solvers by a factor of two in both solution time and storage.« less

Efficient block preconditioned eigensolvers for linear response time-dependent density functional theory

DOE PAGES

Vecharynski, Eugene; Brabec, Jiri; Shao, Meiyue; ...

2017-12-01

In this article, we present two efficient iterative algorithms for solving the linear response eigenvalue problem arising from the time dependent density functional theory. Although the matrix to be diagonalized is nonsymmetric, it has a special structure that can be exploited to save both memory and floating point operations. In particular, the nonsymmetric eigenvalue problem can be transformed into an eigenvalue problem that involves the product of two matrices M and K. We show that, because MK is self-adjoint with respect to the inner product induced by the matrix K, this product eigenvalue problem can be solved efficiently by amore » modified Davidson algorithm and a modified locally optimal block preconditioned conjugate gradient (LOBPCG) algorithm that make use of the K-inner product. The solution of the product eigenvalue problem yields one component of the eigenvector associated with the original eigenvalue problem. We show that the other component of the eigenvector can be easily recovered in an inexpensive postprocessing procedure. As a result, the algorithms we present here become more efficient than existing methods that try to approximate both components of the eigenvectors simultaneously. In particular, our numerical experiments demonstrate that the new algorithms presented here consistently outperform the existing state-of-the-art Davidson type solvers by a factor of two in both solution time and storage.« less

Efficient block preconditioned eigensolvers for linear response time-dependent density functional theory

DOE PAGES

Vecharynski, Eugene; Brabec, Jiri; Shao, Meiyue; ...

2017-08-24

Within this paper, we present two efficient iterative algorithms for solving the linear response eigenvalue problem arising from the time dependent density functional theory. Although the matrix to be diagonalized is nonsymmetric, it has a special structure that can be exploited to save both memory and floating point operations. In particular, the nonsymmetric eigenvalue problem can be transformed into an eigenvalue problem that involves the product of two matrices M and K. We show that, because MK is self-adjoint with respect to the inner product induced by the matrix K, this product eigenvalue problem can be solved efficiently by amore » modified Davidson algorithm and a modified locally optimal block preconditioned conjugate gradient (LOBPCG) algorithm that make use of the K-inner product. Additionally, the solution of the product eigenvalue problem yields one component of the eigenvector associated with the original eigenvalue problem. We show that the other component of the eigenvector can be easily recovered in an inexpensive postprocessing procedure. As a result, the algorithms we present here become more efficient than existing methods that try to approximate both components of the eigenvectors simultaneously. In particular, our numerical experiments demonstrate that the new algorithms presented here consistently outperform the existing state-of-the-art Davidson type solvers by a factor of two in both solution time and storage.« less

CSHCN in Texas: meeting the need for specialist care.

PubMed

Young, M Cherilyn; Drayton, Vonna L C; Menon, Ramdas; Walker, Lesa R; Parker, Colleen M; Cooper, Sam B; Bultman, Linda L

2005-06-01

Assuring the sufficiency and suitability of systems of care and services for children with special health care needs (CSHCN) presents a challenge to Texas providers, agencies, and state Title V programs. To meet the need for specialist care, referrals from primary care doctors are often necessary. The objective of this study was to describe the factors associated with the need for specialist care and problems associated with obtaining referrals in Texas. Bivariate and multivariate analyses were performed using the National Survey of Children with Special Health Care Needs (NS-CSHCN) weighted sample for Texas (n = 719,014) to identify variables associated with the need for specialist care and problems obtaining referrals for specialist care. Medical need of the CSHCN and sensitivity to family values/customs was associated with greater need for specialist care, and Hispanic ethnicity and lower maternal education were associated with less need. Medical need, amount of time spent with doctors and sensitivity to values/customs, living in a large metropolitan statistical area, and lack of medical information were associated with problems obtaining a specialist care referral. Findings revealed some similarities and differences with meeting the need for specialist care when comparing Texas results to other studies. In Texas, aspects of customer satisfaction variables, especially doctors' sensitivity to family values/customs and parents' not receiving enough information on medical problems, were significantly associated with problems obtaining specialist referrals. Findings indicate a need to further research relationships and communication among doctors, CSHCN, and their families.

Family planning: an integral part of mental health care.

PubMed

Muhuhu, P

1982-01-01

Discusses problems in the provision of maternal health care to mentally ill women; delineates problems faced in terms of health care, and ways in which these problems can be solved. The pregnant woman who is also emotionally ill faces some special problems during pregnancy. Emotional reactions to pregnancy, present in all women, may be exacerbated to dangerous levels. Also, the effect of psychotropic drugs on the fetus is a matter of concern, since long term treatment regimens have been found to negatively affect the fetus. Issues of social concern also arise, having to do with the frequent and unplanned pregnancies which often typify the mentally ill woman. In this regard, selection of a contraceptive method for the mentally ill requires careful thought because of the side effects brought on by the combination of oral contraceptives with certain psychotropic medication. The need for family planning education in psychiatric settings and for effective identification of mentally ill individuals during the general admission process are highlighted. As it is, traditional admissions procedures are failing to detect mentally ill maternal patients. Support groups in psychiatric settings have been found to be effective in maintaining motivation towards family planning among women, as well as in answering concerns regarding emotional problems. It is suggested that a workshop or a series of inservice classes would be of great benefit in alerting personnel to the special needs of this category of patients and in promoting the integration of family planning with mental health services.

Negative Peer Influence in Special Needs Classes--A Risk for Students with Problem Behaviour?

ERIC Educational Resources Information Center

Muller, Christoph Michael

2010-01-01

Children and adolescents with aggressive and delinquent behaviours are often educated in special needs classes with others who exhibit the same kind of challenging behaviour. Beside the opportunities provided by this approach there are also risks, as several studies point to the problem of negative peer influence among this student population.…

Some Statistical Characteristics of Special Education for Children with Disabilities in North-East India

ERIC Educational Resources Information Center

Kalita, Jumi; Sarmah, Pranita

2012-01-01

It is estimated that of approximately 150-250 million children with disabilities across the world, a large number have difficulties related to problems in the central nervous system (CNS). This paper considers school dropout rates of children with special educational needs associated with CNS problems from a study of educational institutions in…

Teaching Mathematical Problem Solving to Middle School Students in Math, Technology Education, and Special Education Classrooms

ERIC Educational Resources Information Center

Bottge, Brian A.; Heinrichs, Mary; Mehta, Zara Dee; Rueda, Enrique; Hung, Ya-Hui; Danneker, Jeanne

2004-01-01

This study compared two approaches for teaching sixth-grade middle school students to solve math problems in math, technology education, and special education classrooms. A total of 17 students with disabilities and 76 students without disabilities were taught using either enhanced anchored instruction (EAI) or text-based instruction coupled with…

International Perspectives on Problem-Based Learning: Contexts, Cultures, Challenges, and Adaptations

ERIC Educational Resources Information Center

Hmelo-Silver, Cindy E.

2012-01-01

The theme of this special issue is timely as the world becomes increasingly flat and globally connected (Friedman, 2007). By focusing on an international perspective in problem-based learning (PBL), it puts culture squarely in the center, whether it is a national or disciplinary culture. The articles in this special issue represent Thailand, South…

An Oral Language Based Reading Remedial Program for Special Education Children.

ERIC Educational Resources Information Center

Langdon, Tom

A problem was addressed within the context of the action based research practicum model. The problem was junior high school special education students who read at or below the 10th percentile when compared to age appropriate peers on standardized achievement instruments; and who have had all manner of reading interventions and yet continue to fall…

[Psychology and psychosomatics of the orthodontic treatment].

PubMed

Fábián, Gábor; Bálint, Mária; Fábían, Tibor Károly

2005-06-01

Psychosomatic problems related to orthodontic treatment are a special group of oral psychosomatic disorders. The most frequent complaints are related to aesthetics and occlusion. Most of the patients are children, adolescence or young adults, with special emotional problems. Authors reviewed the most important knowledge related to this specific field, but some general aspects of oral psychosomatics are also discussed.

[A successful attempt with a consulting service for boys].

PubMed

Gottlieb, C; Christiansen, I; Von Segebaden, C; Wiksten-Almströmer, M

1998-08-05

As adolescence is a critical period of development, and as boys are less inclined than girls to approach the school facility for adolescent counselling, segregated consulting hours were introduced for boys to attract those with problems. The frequency of consultations by boys increased by 25 per cent, and 70 per cent of the boys reported a preference for the segregated consulting hours; 75 per cent appreciated the absence of girls from the waiting room; and of the 42 per cent with special preferences regarding the gender of the staff encountered, half reported preferring a man. Most of the boys presented with defined problems, though many revealed other problems, often relating to sexuality, in the course of consultation. The availability of segregated consulting hours for boys with adolescent problems is important, and often the only way to reach young boys who need help.

Special school teachers require more goal-oriented collaboration with psychiatric professionals in Northern Finland.

PubMed

Pönkkö, Maija-Leena; Taanila, Anja; Ebeling, Hanna

2003-03-01

The problems of children and adolescents have increased in number and severity during the last years. The purpose of this study was to elicit the views of special school teachers in the Oulu Province in Finland concerning their pupils' problems and the need, use and adequacy of relevant psychiatric services. The information was collected from the Northern Ostrobothnia Hospital District in 1998 in Finland and responses were obtained from the 37 (97.4%) special schools. The data were analysed using the content analysis method. Special-needs pupils had various behavioural and emotional problems that made it difficult for them to learn and for the teachers to teach. According to the teachers, the major obstacles in the process of helping special-needs pupils were the delayed admission for treatment and the lack of information necessary for the pupils' school work and goal-oriented aftercare, although there were also favourable experiences of functional co-operation and availability of useful information. Some schools lacked a reliable network for helping pupilsand supporting teachers. The Finnish legislation on basic education obliges the providers of education to provide rehabilitation in connection with special education and to arrange relevant development, counselling and support services. The rehabilitation of special-need pupils and the collaboration between school and mental health authorities is not optimally realised in spite of the legislation.

Structure and Reversibility of 2D von Neumann Cellular Automata Over Triangular Lattice

NASA Astrophysics Data System (ADS)

Uguz, Selman; Redjepov, Shovkat; Acar, Ecem; Akin, Hasan

2017-06-01

Even though the fundamental main structure of cellular automata (CA) is a discrete special model, the global behaviors at many iterative times and on big scales could be a close, nearly a continuous, model system. CA theory is a very rich and useful phenomena of dynamical model that focuses on the local information being relayed to the neighboring cells to produce CA global behaviors. The mathematical points of the basic model imply the computable values of the mathematical structure of CA. After modeling the CA structure, an important problem is to be able to move forwards and backwards on CA to understand their behaviors in more elegant ways. A possible case is when CA is to be a reversible one. In this paper, we investigate the structure and the reversibility of two-dimensional (2D) finite, linear, triangular von Neumann CA with null boundary case. It is considered on ternary field ℤ3 (i.e. 3-state). We obtain their transition rule matrices for each special case. For given special triangular information (transition) rule matrices, we prove which triangular linear 2D von Neumann CAs are reversible or not. It is known that the reversibility cases of 2D CA are generally a much challenged problem. In the present study, the reversibility problem of 2D triangular, linear von Neumann CA with null boundary is resolved completely over ternary field. As far as we know, there is no structure and reversibility study of von Neumann 2D linear CA on triangular lattice in the literature. Due to the main CA structures being sufficiently simple to investigate in mathematical ways, and also very complex to obtain in chaotic systems, it is believed that the present construction can be applied to many areas related to these CA using any other transition rules.

PREFACE: Viewing the World through Spin Glasses

NASA Astrophysics Data System (ADS)

Coolen, Ton; Nishimori, Hidetoshi; Sourlas, Nicolas; Wong, Michael

2008-08-01

This special issue of Journal of Physics A: Mathematical and Theoretical collects papers by speakers and participants of the conference `Viewing the World through Spin Glasses', held in Oxford (UK) on 31 August and 1 September 2007 in honour of Professor David Sherrington. It also includes contributions by many other active researchers in the field of spin glasses and related problems. The theory of spin glasses has a history of more than 30 years and continues to develop within itself as well as into an unexpectedly vast range of interdisciplinary subjects, including neural networks, error-correcting codes, optimization problems and social problems. Most of these amazing developments have their formal basis in the ground-breaking work of David Sherrington with Scott Kirkpatrick, centred on the SK model and the techniques devised to analyse it via the replica method. In this 'classic-of-classics' paper, a theoretical paradigm was suddenly established which became the common tool of analysis for thousands of papers in the following decades. It also led to deep developments in probability theory, through the efforts to understand the enigmatic Parisi solution of the SK model. The work of Professor Sherrington will continue to be an infinite source of our inspiration in many years to come. The purpose of the conference `Viewing the World through Spin Glasses' was to provide an overview of the present status of the fields which Professor Sherrington initiated, on the occasion of his 65th birthday, organized by John Cardy, Juan P Garrahan and the present Guest Editors. The first contribution in this special issue, by Professor Paul Goldbart, reflects his salute delivered at the conference dinner, and conveys its atmosphere very well. The papers that follow, ordered by the date of acceptance, represent the current activities of leading researchers in spin glasses and related fields, and we expect these to serve as milestones for future developments. We thank all the authors of this special issue and the participants of the conference for their valuable contributions.

Statistical process control charts for attribute data involving very large sample sizes: a review of problems and solutions.

PubMed

Mohammed, Mohammed A; Panesar, Jagdeep S; Laney, David B; Wilson, Richard

2013-04-01

The use of statistical process control (SPC) charts in healthcare is increasing. The primary purpose of SPC is to distinguish between common-cause variation which is attributable to the underlying process, and special-cause variation which is extrinsic to the underlying process. This is important because improvement under common-cause variation requires action on the process, whereas special-cause variation merits an investigation to first find the cause. Nonetheless, when dealing with attribute or count data (eg, number of emergency admissions) involving very large sample sizes, traditional SPC charts often produce tight control limits with most of the data points appearing outside the control limits. This can give a false impression of common and special-cause variation, and potentially misguide the user into taking the wrong actions. Given the growing availability of large datasets from routinely collected databases in healthcare, there is a need to present a review of this problem (which arises because traditional attribute charts only consider within-subgroup variation) and its solutions (which consider within and between-subgroup variation), which involve the use of the well-established measurements chart and the more recently developed attribute charts based on Laney's innovative approach. We close by making some suggestions for practice.

Structural and thermal testing of lightweight reflector panels

NASA Technical Reports Server (NTRS)

Mcgregor, J.; Helms, R.; Hill, T.

1992-01-01

The paper describes the test facility developed for testing large lightweight reflective panels with very accurate and stable surfaces, such as the mirror panels of composite construction developed for the NASA's Precision Segmented Reflector (PSR). Special attention is given to the panel construction and the special problems posed by the characteristics of these panels; the design of the Optical/Thermal Vacuum test facility for structural and thermal testing, developed at the U.S. AFPL; and the testing procedure. The results of the PSR panel test program to date are presented. The test data showed that the analytical approaches used for the panel design and for the prediction of the on-orbit panel behavior were adequate.

Challenges to reestablishment of free-ranging populations of black-footed ferrets

USGS Publications Warehouse

Biggins, D.E.; Godbey, J.L.

2003-01-01

The black-footed ferret (Mustela nigripes) of North America is critically endangered due in part to its extreme specialization on formerly stable and abundant prairie dogs (Cynomys). Its close relative, the Siberian polecat (M. eversmannii) seems to have been subjected to a varying environment that was not conducive to specialization. One source of environmental variation in Asian steppes was plague (caused by Yersina pestis), which was absent from North America. Introduction of plague to North America presents serious challenges to ferret recovery. Partial solutions to other biological and political problems have been found, resulting in improved production in captivity, increased survival post-release, and thriving populations in plague-free South Dakota.

Challenges to reestablishment of free-ranging populations of black-footed ferrets.

PubMed

Biggins, Dean E; Godbey, Jerry L

2003-08-01

The black-footed ferret (Mustela nigripes) of North America is critically endangered due in part to its extreme specialization on formerly stable and abundant prairie dogs (Cynomys). Its close relative, the Siberian polecat (M. eversmannii) seems to have been subjected to a varying environment that was not conductive to specialization. One source of environmental variation in Asian steppes was plague (caused by Yersina pestis), which was absent from North America. Introduction of plague to North America presents serious challenges to ferret recovery. Partial solutions to other biological and political problems have been found, resulting in improved production in captivity, increased survival post-release, and thriving populations in plague-free South Dakota.

A Qualitative Exploration of the Perceptions of a Special Education Professional Learning Community

ERIC Educational Resources Information Center

Katz, Marc

2013-01-01

Professional learning communities (PLCs) have been used as a format for encouraging formal collaboration among teachers. The topic of the completed study is the perceptions of special education teachers regarding how special education PLCs meet formal collaboration needs, particularly in terms of isolation. The problem is that special education…

Inquiry-Based Instruction for Students with Special Needs in School Based Agricultural Education

ERIC Educational Resources Information Center

Easterly, R. G., III; Myers, Brian E.

2011-01-01

Educating students with special needs in school based agricultural education (SBAE) is a problem that should be addressed. While many students in SBAE classes have special needs, contradicting research exists establishing the best method of instruction for students with special needs. Inquiry-based instruction shows some promise, but little is…

A Qualitative Case Study of Expert Special Educators Effectively Negotiating Their Job Demands

ERIC Educational Resources Information Center

Ortogero, Shawna P.

2013-01-01

This qualitative case study explored how three expert secondary special education teachers in Hawaii constructed their perceived roles and successfully negotiated their job demands. There is a strong connection between role problems and special education teachers leaving the profession. The special education teacher shortage has a direct impact on…

Children with Special Educational Needs in the Netherlands: Number, Characteristics and School Career

ERIC Educational Resources Information Center

van der Veen, Ineke; Smeets, Ed; Derriks, Mechtild

2010-01-01

Background: Several barriers are hampering the provision of adequate education to students with special educational needs in mainstream primary schools. It is not clear how many and which students in the Netherlands are considered children with special educational needs. The problems that make teachers consider children to have special educational…

Suspected dietary supplement injuries in special operations soldiers.

PubMed

Hughes, John; Shelton, Byron; Hughes, Teresa

2010-01-01

Evidence suggests that a number of Special Operations Soldiers are using dietary supplements to augment their physical training programs and that some of these supplements are not entirely benign. This article presents a series of case reports of Soldiers who suffered adverse effects that may be at least partially attributable to the use of dietary supplements. Given that many Special Operations Soldiers train at the same level as world class athletes and the use of supplements is common among world class athletes, the use of supplements is not likely to stop. To this end, the purpose of this article is to provide awareness of the problem, discuss some of the harmful effects of dietary supplements, make a recommendation for education to help reduce the number of injuries resulting from the use of dietary supplements, and recommend that scientific studies be done to prove the benefits and risks of taking dietary supplements. © 2010.

Solving a novel confinement problem by spartaeine salticids that are predisposed to solve problems in the context of predation.

PubMed

Cross, Fiona R; Jackson, Robert R

2015-03-01

Intricate predatory strategies are widespread in the salticid subfamily Spartaeinae. The hypothesis we consider here is that the spartaeine species that are proficient at solving prey-capture problems are also proficient at solving novel problems. We used nine species from this subfamily in our experiments. Eight of these species (two Brettus, one Cocalus, three Cyrba, two Portia) are known for specialized invasion of other spiders' webs and for actively choosing other spiders as preferred prey ('araneophagy'). Except for Cocalus, these species also use trial and error to derive web-based signals with which they gain dynamic fine control of the resident spider's behaviour ('aggressive mimicry').The ninth species, Paracyrba wanlessi, is not araneophagic and instead specializes at preying on mosquitoes. We presented these nine species with a novel confinement problem that could be solved by trial and error. The test spider began each trial on an island in a tray of water, with an atoll surrounding the island. From the island, the spider could choose between two potential escape tactics (leap or swim), but we decided at random before the trial which tactic would fail and which tactic would achieve partial success. Our findings show that the seven aggressive-mimic species are proficient at solving the confinement problem by repeating 'correct' choices and by switching to the alternative tactic after making an 'incorrect' choice. However, as predicted, there was no evidence of C. gibbosus or P. wanlessi, the two non-aggressive-mimic species, solving the confinement problem. We discuss these findings in the context of an often-made distinction between domain-specific and domain-general cognition.

Biodiesel production with special emphasis on lipase-catalyzed transesterification.

PubMed

Bisen, Prakash S; Sanodiya, Bhagwan S; Thakur, Gulab S; Baghel, Rakesh K; Prasad, G B K S

2010-08-01

The production of biodiesel by transesterification employing acid or base catalyst has been industrially accepted for its high conversion and reaction rates. Downstream processing costs and environmental problems associated with biodiesel production and byproducts recovery have led to the search for alternative production methods. Recently, enzymatic transesterification involving lipases has attracted attention for biodiesel production as it produces high purity product and enables easy separation from the byproduct, glycerol. The use of immobilized lipases and immobilized whole cells may lower the overall cost, while presenting less downstream processing problems, to biodiesel production. The present review gives an overview on biodiesel production technology and analyzes the factors/methods of enzymatic approach reported in the literature and also suggests suitable method on the basis of evidence for industrial production of biodiesel.

Special Libraries, Problems and Cooperative Potentials; Prepared for the National Advisory Commission on Libraries. Final Report.

ERIC Educational Resources Information Center

Havlik, Robert J.; And Others

A three part approach was taken in this situation report on the role of the special libraries in the United States. First, several background papers were prepared about the definition and state-of-the-art of the field of special librarianship. These papers are: (1) Shera, Jesse H., "Special Libraries--Why 'Special'?, (2) Ash, Lee,…

Gravitational Many-Body Problem

DOE Office of Scientific and Technical Information (OSTI.GOV)

Makino, J.

2008-04-29

In this paper, we briefly review some aspects of the gravitational many-body problem, which is one of the oldest problems in the modern mathematical science. Then we review our GRAPE project to design computers specialized to this problem.

Orthopedic and trauma services in the healthcare system of Serbia.

PubMed

Vukasinović, Zoran; Zivković, Zorica; Spasovski, Dusko

2008-01-01

Our aim has been to present the functioning of orthopaedic and trauma services in the healthcare system of Serbia. In the introduction, we present geographic, demographic, political and economic elements, which define more closely the position of Serbia in the Southeastern Europe. Further, the healthcare system of Serbia, organized in four levels, is presented: self-care, primary healthcare, secondary healthcare and tertiary healthcare, as well as the schedule of 20,157 physicians engaged in healthcare. In addition, we point out numerous problems, which the system is faced with. Special attention is paid to orthopaedic and trauma services active within the system, its development, current condition and personnel education. We have concluded that, despite this being a middle-income country, the healthcare system is well developed. With 524 orthopaedic surgeons, working in 56 specialized departments, musculoskeletal diseases and trauma management are covered at all three healthcare levels. Nevertheless, the authors also underline weaknesses that are mostly of technical nature. Measures for their elimination and improvement of the entire service are also suggested.

NASTRAN multipartitioning and one-shot substructuring

NASA Technical Reports Server (NTRS)

Levy, A.

1973-01-01

For intermediate size problems where all the data is accessible, the present method of substructuring in three separate phases (for static analysis) is unneccessarily cumbersome. The versatility of NASTRAN's DMAP and internal logic lends itself to finding a practical alternative to these procedures whereby self-contained special-purpose ALTER packages can be written to be run in one pass. Two examples are presented here under the titles of multipartitioning and one-shot substructuring. The flow of multipartitioning resembles that of the present three-phase substructuring. The basic effect is to partition the structure into substructures and operate on each substructure separately. This can be used to reduce the bandwidth of a given problem as well as to store information which will allow a change to be made in one of the substructures in a later run. This latter procedure is carried out in a second program titled one-shot substructuring.

Towards Building a Computer Aided Education System for Special Students Using Wearable Sensor Technologies

PubMed Central

Mehmood, Raja Majid; Lee, Hyo Jong

2017-01-01

Human computer interaction is a growing field in terms of helping people in their daily life to improve their living. Especially, people with some disability may need an interface which is more appropriate and compatible with their needs. Our research is focused on similar kinds of problems, such as students with some mental disorder or mood disruption problems. To improve their learning process, an intelligent emotion recognition system is essential which has an ability to recognize the current emotional state of the brain. Nowadays, in special schools, instructors are commonly use some conventional methods for managing special students for educational purposes. In this paper, we proposed a novel computer aided method for instructors at special schools where they can teach special students with the support of our system using wearable technologies. PMID:28208734

Effect of Tutorial Giving on The Topic of Special Theory of Relativity in Modern Physics Course Towards Students’ Problem-Solving Ability

NASA Astrophysics Data System (ADS)

Hartatiek; Yudyanto; Haryoto, Dwi

2017-05-01

A Special Theory of Relativity handbook has been successfully arranged to guide students tutorial activity in the Modern Physics course. The low of students’ problem-solving ability was overcome by giving the tutorial in addition to the lecture class. It was done due to the limited time in the class during the course to have students do some exercises for their problem-solving ability. The explicit problem-solving based tutorial handbook was written by emphasizing to this 5 problem-solving strategies: (1) focus on the problem, (2) picture the physical facts, (3) plan the solution, (4) solve the problem, and (5) check the result. This research and development (R&D) consisted of 3 main steps: (1) preliminary study, (2) draft I. product development, and (3) product validation. The developed draft product was validated by experts to measure the feasibility of the material and predict the effect of the tutorial giving by means of questionnaires with scale 1 to 4. The students problem-solving ability in Special Theory of Relativity showed very good qualification. It implied that the tutorial giving with the help of tutorial handbook increased students problem-solving ability. The empirical test revealed that the developed handbook was significantly affected in improving students’ mastery concept and problem-solving ability. Both students’ mastery concept and problem-solving ability were in middle category with gain of 0.31 and 0.41, respectively.

Theory and application of equivalent transformation relationships between plane wave and spherical wave

NASA Astrophysics Data System (ADS)

Wang, Yao; Yang, Zailin; Zhang, Jianwei; Yang, Yong

2017-10-01

Based on the governing equations and the equivalent models, we propose an equivalent transformation relationships between a plane wave in a one-dimensional medium and a spherical wave in globular geometry with radially inhomogeneous properties. These equivalent relationships can help us to obtain the analytical solutions of the elastodynamic issues in an inhomogeneous medium. The physical essence of the presented equivalent transformations is the equivalent relationships between the geometry and the material properties. It indicates that the spherical wave problem in globular geometry can be transformed into the plane wave problem in the bar with variable property fields, and its inverse transformation is valid as well. Four different examples of wave motion problems in the inhomogeneous media are solved based on the presented equivalent relationships. We obtain two basic analytical solution forms in Examples I and II, investigate the reflection behavior of inhomogeneous half-space in Example III, and exhibit a special inhomogeneity in Example IV, which can keep the traveling spherical wave in constant amplitude. This study implies that our idea makes solving the associated problem easier.

Access to Specialty Medical Care for Children with Mental Retardation, Autism, and Other Special Health Care Needs.

ERIC Educational Resources Information Center

Krauss, Marty Wyngaarden; Gulley, Stephen; Sciegaj, Mark; Wells, Nora

2003-01-01

Analysis of a national survey indicates that more than a third of children with autism, a fifth with mental retardation, and a fifth with other types of special health care needs had problems obtaining needed care from specialty doctors in the preceding year. The most common problems included getting referrals and finding providers with…

47 CFR 95.206 - (R/C Rule 6) Are there any special restrictions on the location of my R/C station?

Code of Federal Regulations, 2011 CFR

2011-10-01

... COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES PERSONAL RADIO SERVICES Radio Control (R/C) Radio... operated in such a manner as to raise environmental problems, under § 1.1307 of this chapter, you must... order to resolve or mitigate any potential interference problem with the Arecibo Observatory. If the...

47 CFR 95.206 - (R/C Rule 6) Are there any special restrictions on the location of my R/C station?

Code of Federal Regulations, 2010 CFR

2010-10-01

... COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES PERSONAL RADIO SERVICES Radio Control (R/C) Radio... operated in such a manner as to raise environmental problems, under § 1.1307 of this chapter, you must... order to resolve or mitigate any potential interference problem with the Arecibo Observatory. If the...

Men in Limbo: Former Students with Special Educational Needs Caught between Economic Independence and Social Security Dependence

ERIC Educational Resources Information Center

Skjong, Gerd; Myklebust, Jon Olav

2016-01-01

Individuals in their mid-thirties are expected to be employed and economically independent. However, people with disabilities and health problems--for example, former students with special educational needs (SEN)--may have problems in this domain of adult life. In Norway, individuals with SEN frequently rely on social security and support measures…

Function-Based Intervention for an Adolescent with Emotional and Behavioral Disorders in Bermuda: Moving across Culture

ERIC Educational Resources Information Center

Turton, Amina M.; Umbreit, John; Liaupsin, Carl J.; Bartley, Judith

2007-01-01

Saida, a 16-year-old girl in Bermuda, attended a special alternative high school program for students with serious behavior problems. She had been receiving special education for her behavioral problems since the age of 5. Saida regularly used profanity in response to teacher directives, particularly in social studies class. A functional…

A method based on the Jacobi tau approximation for solving multi-term time-space fractional partial differential equations

NASA Astrophysics Data System (ADS)

Bhrawy, A. H.; Zaky, M. A.

2015-01-01

In this paper, we propose and analyze an efficient operational formulation of spectral tau method for multi-term time-space fractional differential equation with Dirichlet boundary conditions. The shifted Jacobi operational matrices of Riemann-Liouville fractional integral, left-sided and right-sided Caputo fractional derivatives are presented. By using these operational matrices, we propose a shifted Jacobi tau method for both temporal and spatial discretizations, which allows us to present an efficient spectral method for solving such problem. Furthermore, the error is estimated and the proposed method has reasonable convergence rates in spatial and temporal discretizations. In addition, some known spectral tau approximations can be derived as special cases from our algorithm if we suitably choose the corresponding special cases of Jacobi parameters θ and ϑ. Finally, in order to demonstrate its accuracy, we compare our method with those reported in the literature.

Unfinished business: efforts to define dual-use research of bioterrorism concern.

PubMed

Zmorzynska, Anna; Suk, Jonathan E; Biederbick, Walter; Maidhof, Heinrich; Sasse, Julia; Semenza, Jan C; Hunger, Iris

2011-12-01

Biotechnological research poses a special security problem because of the duality between beneficial use and misuse. In order to find a balance between regulating potentially dangerous research and assuring scientific advancement, a number of assessments have tried to define which types of research are especially open to misuse and should therefore be considered dual-use research of special concern requiring rigorous oversight. So far, there has been no common understanding of what such activities are. Here we present a review of 27 assessments focusing on biological dual-use issues published between 1997 and 2008. Dual-use research activities identified by these assessments as being of special concern were compiled and compared. Moreover, from these 27 assessments, the primary research publications explicitly identified as examples of concerning research activities were extracted and analyzed. We extracted a core list of 11 activities of special concern and show that this list does not match with the reasons why primary research publications were identified as being of special concern. Additionally, we note that the 11 activities identified are not easily conducted or replicated, and therefore the likelihood of their being used in a high-tech mass casualty bioterrorism event should be reevaluated. © Mary Ann Liebert, Inc.

Preparing Special Educators for Work in Rural Areas: Two Field-Based Programs That Work.

ERIC Educational Resources Information Center

Minner, Sam; Prater, Greg

In response to a problem in recruiting and retaining special education teachers on the Navajo Reservation, the Rural Special Education Project (RSEP) was designed to prepare special education teachers to deliver quality services to Navajo children with handicapping conditions. The RSEP is a partnership between Northern Arizona University and the…

Special discontinuities in nonlinearly elastic media

NASA Astrophysics Data System (ADS)

Chugainova, A. P.

2017-06-01

Solutions of a nonlinear hyperbolic system of equations describing weakly nonlinear quasitransverse waves in a weakly anisotropic elastic medium are studied. The influence of small-scale processes of dissipation and dispersion is investigated. The small-scale processes determine the structure of discontinuities (shocks) and a set of discontinuities with a stationary structure. Among the discontinuities with a stationary structure, there are special ones that, in addition to relations following from conservation laws, satisfy additional relations required for the existence of their structure. In the phase plane, the structure of such discontinuities is represented by an integral curve joining two saddles. Special discontinuities lead to nonunique self-similar solutions of the Riemann problem. Asymptotics of non-self-similar problems for equations with dissipation and dispersion are found numerically. These asymptotics correspond to self-similar solutions of the problems.

Special Education Students Improve Academic Performance through Problem-Based Learning and Technology

NASA Astrophysics Data System (ADS)

Freeman, S.; Kintsch, A.

2003-12-01

Boulder High School Special Education students work in teams on donated wireless computers to solve problems created by global climate change. Their text is Richard Somerville's The Forgiving Air. They utilize Wheeling Jesuit University's remote sensing web site and private computer bulletin board. Their central source for problem-based learning (PBL) is www.cotf.edu, NASA's Classroom of the Future Global Change web site. As a result, students not only improve their abilities to write, read, do math and research, speak, and work as team members, they also improve self-esteem, resilience, and willingness to take more challenging classes. Two special education students passed AP exams, Calculus and U.S. Government, last spring and Jay Matthews of Newsweek rates Boulder High as 201st of the nation's top 1000 high schools.

The principle of relativity and the indeterminacy of special relativity

NASA Astrophysics Data System (ADS)

de Abreu, Rodrigo; Guerra, Vasco

2008-01-01

This work ends a trilogy devoted to a journey into the foundations of special relativity. The first paper debated the meaning of the constancy of the two-way speed of light and its close relation to the conceptualization of time. The second one addressed the question of the possible constancy of the one-way speed of light and the trivial—but, unfortunately, even now somewhat controversial—question of the compatibility between the assumption of a special system of reference and Einstein's special relativity. The present study deals with the principle of relativity. Its historical evolution is reviewed and a 'weak' formulation is defended. It is emphasized that many assertions usually associated with special relativity, such as the 'relativity of time dilation' and 'relativity of space contraction' are indeed philosophical statements, as it has been established already by several authors in the past. Nonetheless, most teachers and scientists still believe nowadays they are implied by the theory and by the group property of the Lorentz transformation. This is by no means so, as it is reviewed and elucidated with the simple example on space contraction. It is argued that the lack of knowledge of the true value of the one-way speed of light in empty space leaves the theory undetermined. Einstein's special relativity corresponds to a simple and very elegant solution to this problem, allowing the study of relative motion without any concern with the study of absolute motion, which is considered to be superfluous. However, its standard interpretation is minimalist and even misleading. A large number of researchers have discussed this question, mostly within the conventionality of simultaneity thesis. The typical formulation of this thesis provides some new physical insight and points out the problem, but does not solve it. In contrast, it often leads to a labyrinth of difficult language which is herein clarified.

Gorlin-Goltz syndrome

PubMed Central

Kohli, Munish; Kohli, Monica; Sharma, Naresh; Siddiqui, Saif Rauf; Tulsi, S.P.S.

2010-01-01

Gorlin-Goltz syndrome is an inherited autosomal dominant disorder with complete penetrance and extreme variable expressivity. The authors present a case of an 11-year-old girl with typical features of Gorlin-Goltz syndrome with special respect to medical and dental problems which include multiple bony cage deformities like spina bifida with scoliosis having convexity to the left side, presence of an infantile uterus and multiple odonogenic keratocysts in the maxillofacial region. PMID:22442551

Identification of asteroid dynamical families

NASA Technical Reports Server (NTRS)

Valsecchi, G. B.; Carusi, A.; Knezevic, Z.; Kresak, L.; Williams, J. G.

1989-01-01

Problems involved in the identification of asteroid dynamical families are discussed, and some methodological guidelines are presented. Asteroid family classifications are reviewed, and differences in the existing classifications are examined with special attention given to the effects of observational selection on the classification of family membership. The paper also discusses various theories of secular perturbations, including the classical linear theory, the theory of Williams (1969), and the higher order/degree theory of Yuasa (1973).

After Integration; Problems of Race Relations in the High School Today. A Study of Madison High School with Recommendations for New York City Schools.

ERIC Educational Resources Information Center

New York City Commission on Human Rights, NY.

This report first presents a narrative and analysis of the process and aftermath of the integration of Madison High School in Brooklyn, New York City. Then 13 recommendations are stated, among which are the following: (1) Board of Education should establish a special unit to provide technical assistance for integrated schools; (2) the New York…

The NASTRAN theoretical manual

NASA Technical Reports Server (NTRS)

1981-01-01

Designed to accommodate additions and modifications, this commentary on NASTRAN describes the problem solving capabilities of the program in a narrative fashion and presents developments of the analytical and numerical procedures that underlie the program. Seventeen major sections and numerous subsections cover; the organizational aspects of the program, utility matrix routines, static structural analysis, heat transfer, dynamic structural analysis, computer graphics, special structural modeling techniques, error analysis, interaction between structures and fluids, and aeroelastic analysis.

Report of the American Commissioners of the International Commission on the Teaching of Mathematics. Bulletin, 1912, No. 14. Whole Number 486

ERIC Educational Resources Information Center

United States Bureau of Education, Department of the Interior, 1912

1912-01-01

In the following general report the aim is to present a concise view of the organization, methods, and problems of the teaching of mathematics in the United States, touching particularly upon the larger questions that seem to merit especial emphasis, and referring to the special reports for details with respect lo the various types of schools. The…

A Lyapunov-Based Approach for Time-Coordinated 3D Path-Following of Multiple Quadrotors

DTIC Science & Technology

2012-12-01

presented in [10] as solutions for accommodating the nonlinear disturbances for outdoor altitude control . Finally, in [11] a trajectory- tracking ... control algorithm is formulated using the Special Orthogonal group SO(3) for attitude representation, leading to a simple and singularity-free solution for...the trajectory tracking problem. Cooperation between multiple unmanned vehicles has also received significant attention in the control community in

On the Locus Formed by the Maximum Heights of Projectile Motion with Air Resistance

ERIC Educational Resources Information Center

Hernandez-Saldana, H.

2010-01-01

We present an analysis on the locus formed by the set of maxima of the trajectories of a projectile launched in a medium with linear drag. Such a place, the locus of apexes, is written in terms of the Lambert "W" function in polar coordinates, confirming the special role played by this function in the problem. To characterize the locus, a study of…

Parallelism in Manipulator Dynamics. Revision.

DTIC Science & Technology

1983-12-01

computing the motor torques required to drive a lower-pair kinematic chain (e.g., a typical manipulator arm in free motion, or a mechanical leg in the... computations , and presents two "mathematically exact" formulationsespecially suited to high-speed, highly parallel implementa- tions using special-purpose...YNAMICS by I(IIAR) IIAROLI) LATIROP .4ISTRACT This paper addresses the problem of efficiently computing the motor torques required to drive a lower-pair

A general heuristic for genome rearrangement problems.

PubMed

Dias, Ulisses; Galvão, Gustavo Rodrigues; Lintzmayer, Carla Négri; Dias, Zanoni

2014-06-01

In this paper, we present a general heuristic for several problems in the genome rearrangement field. Our heuristic does not solve any problem directly, it is rather used to improve the solutions provided by any non-optimal algorithm that solve them. Therefore, we have implemented several algorithms described in the literature and several algorithms developed by ourselves. As a whole, we implemented 23 algorithms for 9 well known problems in the genome rearrangement field. A total of 13 algorithms were implemented for problems that use the notions of prefix and suffix operations. In addition, we worked on 5 algorithms for the classic problem of sorting by transposition and we conclude the experiments by presenting results for 3 approximation algorithms for the sorting by reversals and transpositions problem and 2 approximation algorithms for the sorting by reversals problem. Another algorithm with better approximation ratio can be found for the last genome rearrangement problem, but it is purely theoretical with no practical implementation. The algorithms we implemented in addition to our heuristic lead to the best practical results in each case. In particular, we were able to improve results on the sorting by transpositions problem, which is a very special case because many efforts have been made to generate algorithms with good results in practice and some of these algorithms provide results that equal the optimum solutions in many cases. Our source codes and benchmarks are freely available upon request from the authors so that it will be easier to compare new approaches against our results.

Angular-Rate Estimation Using Delayed Quaternion Measurements

NASA Technical Reports Server (NTRS)

Azor, R.; Bar-Itzhack, I. Y.; Harman, R. R.

1999-01-01

This paper presents algorithms for estimating the angular-rate vector of satellites using quaternion measurements. Two approaches are compared one that uses differentiated quaternion measurements to yield coarse rate measurements, which are then fed into two different estimators. In the other approach the raw quaternion measurements themselves are fed directly into the two estimators. The two estimators rely on the ability to decompose the non-linear part of the rotas rotational dynamics equation of a body into a product of an angular-rate dependent matrix and the angular-rate vector itself. This non unique decomposition, enables the treatment of the nonlinear spacecraft (SC) dynamics model as a linear one and, thus, the application of a PseudoLinear Kalman Filter (PSELIKA). It also enables the application of a special Kalman filter which is based on the use of the solution of the State Dependent Algebraic Riccati Equation (SDARE) in order to compute the gain matrix and thus eliminates the need to compute recursively the filter covariance matrix. The replacement of the rotational dynamics by a simple Markov model is also examined. In this paper special consideration is given to the problem of delayed quaternion measurements. Two solutions to this problem are suggested and tested. Real Rossi X-Ray Timing Explorer (RXTE) data is used to test these algorithms, and results are presented.

Survey of physician requirements in six specialties: manpower needs in anesthesiology, neurology, nuclear medicine, pathology, physical medicine and rehabilitation, radiology. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wills, J.

1980-07-01

This report was prepared to assist the Graduate Medical Education National Advisory Committee (GMENAC) in its efforts to model physician manpower requirements in six specialties: anesthesiology, neurology, nuclear medicine, pathology, physical medicine and rehabilitation, and radiology. The purpose of this report is to (1) survey and present the existing literature on manpower requirements in each of these six specialties, and (2) discuss the special problems present in each specialty in modeling manpower requirements, and where possible, suggest possible avenues of resolution.

Investigation of the Stability of a Two-Span Bridge with the use of a High-Precision Laser Displacement Sensors

NASA Astrophysics Data System (ADS)

Poddaeva, O.; Churin, P.; Fedosova, A.; Truhanov, S.

2018-03-01

Studies of aerodynamics of bridge structures are an actual problem. Such attention is paid to the study of wind influence on bridge structures not at all by chance; a large number of cases of loss of stability of such structures are known under the influence of wind up to their complete destruction. The development of non-contact systems of measuring equipment allows solving this problem with a high level of accuracy and reliability. This article presents the results of experimental studies of wind impact on a two-span bridge using specialized measuring system based on high-precision laser displacement sensors.

[Determination of blood alcohol among aviation personnel: proposed operative protocol].

PubMed

Lopez, A; Cardoni, F; Bova, M; Simonazzi, S; Romolo, F S; Ricciardi Tenore, G

2003-01-01

The problems of the use/abuse of alcohol need a special attention by the Public Authorities, based on the scientific evidences related to the subject. We would like to define in the present paper the procedures for alcohol testing (and drug testing) in the sailors, following the international aviation authorities (ICAO, JAR-OPS-1, FAA) recommendations. A Working Group was established to study both the scientific and the legal aspects of the problems related to alcohol testing in Italy. Experts from the Università "La Sapienza" and from Alitalia studied the alcohol testing issues abroad to set out criteria, guidelines and procedures for random testing in Italy.

Behaviour among children of substance-abusing women attending a Special Child Welfare Clinic in Norway, as assessed by Child Behavior Checklist (CBCL).

PubMed

Hjerkinn, Bjørg; Lindbaek, Morten; Rosvold, Elin Olaug

2013-06-01

A Special Child Welfare Clinic (SCWC) in Norway provides care for pregnant women with substance abuse problems. Treatment is given without substitution. This investigation assesses the behaviour of the children between the ages 6 and 13 years of women who attended the clinic. It also explores the correlation between the behaviour and a neuropsychological screening performed one and a half year earlier. The study was set up to investigate the influence of prenatal substance exposure. Thirty-eight SCWC children and 63 children in a comparison group were scored by Child Behavior Check List (CBCL). Twenty-one (55%) SCWC mothers were classed as short-term users (ceased substance abuse before the end of first trimester), and 17 (45%) were classed as long-term users (continued a moderate substance abuse throughout pregnancy). Thirteen (77%) of the children of the long-term users were living in foster homes at the time of the investigation. SCWC children were scored within normal ranges for most items, but their scores were significantly worse than those of the comparison group. Children of short-term users were given lower scores than comparisons on more issues in CBCL than were children of long-term users. The SCWC children were breastfed for a shorter time (p = 0.023) and had moved house more often (p < 0.001) than comparisons. SCWC children living with their biological mothers received more special education or remedial classes (p ≤ 0.001) than children of the comparisons. Most children of long-term users were living in foster homes. Notably, children of short-term users, that is, children living with their biological mothers, were given lower scores than comparisons in CBCL. Children of short-term users were more likely to receive special education than children of comparisons. More research is needed on how to reveal parenting problems and how to guide mothers with previous or present substance abuse problems. © 2012 Nordic College of Caring Science.

Colored Traveling Salesman Problem.

PubMed

Li, Jun; Zhou, MengChu; Sun, Qirui; Dai, Xianzhong; Yu, Xiaolong

2015-11-01

The multiple traveling salesman problem (MTSP) is an important combinatorial optimization problem. It has been widely and successfully applied to the practical cases in which multiple traveling individuals (salesmen) share the common workspace (city set). However, it cannot represent some application problems where multiple traveling individuals not only have their own exclusive tasks but also share a group of tasks with each other. This work proposes a new MTSP called colored traveling salesman problem (CTSP) for handling such cases. Two types of city groups are defined, i.e., each group of exclusive cities of a single color for a salesman to visit and a group of shared cities of multiple colors allowing all salesmen to visit. Evidences show that CTSP is NP-hard and a multidepot MTSP and multiple single traveling salesman problems are its special cases. We present a genetic algorithm (GA) with dual-chromosome coding for CTSP and analyze the corresponding solution space. Then, GA is improved by incorporating greedy, hill-climbing (HC), and simulated annealing (SA) operations to achieve better performance. By experiments, the limitation of the exact solution method is revealed and the performance of the presented GAs is compared. The results suggest that SAGA can achieve the best quality of solutions and HCGA should be the choice making good tradeoff between the solution quality and computing time.

Analysis of Slope Limiters on Irregular Grids

NASA Technical Reports Server (NTRS)

Berger, Marsha; Aftosmis, Michael J.

2005-01-01

This paper examines the behavior of flux and slope limiters on non-uniform grids in multiple dimensions. Many slope limiters in standard use do not preserve linear solutions on irregular grids impacting both accuracy and convergence. We rewrite some well-known limiters to highlight their underlying symmetry, and use this form to examine the proper - ties of both traditional and novel limiter formulations on non-uniform meshes. A consistent method of handling stretched meshes is developed which is both linearity preserving for arbitrary mesh stretchings and reduces to common limiters on uniform meshes. In multiple dimensions we analyze the monotonicity region of the gradient vector and show that the multidimensional limiting problem may be cast as the solution of a linear programming problem. For some special cases we present a new directional limiting formulation that preserves linear solutions in multiple dimensions on irregular grids. Computational results using model problems and complex three-dimensional examples are presented, demonstrating accuracy, monotonicity and robustness.

Distinguishing Disability: Parents, Privilege, and Special Education

ERIC Educational Resources Information Center

Ong-Dean, Colin

2009-01-01

Students in special education programs can have widely divergent experiences. For some, special education amounts to a dumping ground where schools unload their problem students, while for others, it provides access to services and accommodations that drastically improve chances of succeeding in school and beyond. "Distinguishing…

An Island Grouping Genetic Algorithm for Fuzzy Partitioning Problems

PubMed Central

Salcedo-Sanz, S.; Del Ser, J.; Geem, Z. W.

2014-01-01

This paper presents a novel fuzzy clustering technique based on grouping genetic algorithms (GGAs), which are a class of evolutionary algorithms especially modified to tackle grouping problems. Our approach hinges on a GGA devised for fuzzy clustering by means of a novel encoding of individuals (containing elements and clusters sections), a new fitness function (a superior modification of the Davies Bouldin index), specially tailored crossover and mutation operators, and the use of a scheme based on a local search and a parallelization process, inspired from an island-based model of evolution. The overall performance of our approach has been assessed over a number of synthetic and real fuzzy clustering problems with different objective functions and distance measures, from which it is concluded that the proposed approach shows excellent performance in all cases. PMID:24977235

Multi-objective flexible job shop scheduling problem using variable neighborhood evolutionary algorithm

NASA Astrophysics Data System (ADS)

Wang, Chun; Ji, Zhicheng; Wang, Yan

2017-07-01

In this paper, multi-objective flexible job shop scheduling problem (MOFJSP) was studied with the objects to minimize makespan, total workload and critical workload. A variable neighborhood evolutionary algorithm (VNEA) was proposed to obtain a set of Pareto optimal solutions. First, two novel crowded operators in terms of the decision space and object space were proposed, and they were respectively used in mating selection and environmental selection. Then, two well-designed neighborhood structures were used in local search, which consider the problem characteristics and can hold fast convergence. Finally, extensive comparison was carried out with the state-of-the-art methods specially presented for solving MOFJSP on well-known benchmark instances. The results show that the proposed VNEA is more effective than other algorithms in solving MOFJSP.

Impact of Family Functioning on Classroom Problem Behavior of Children with Emotional and Behavioral Disorders in Special Education

ERIC Educational Resources Information Center

Stoutjesdijk, Regina; Scholte, Evert M.; Swaab, Hanna

2016-01-01

This study examined the relation between family functioning and classroom problem behavior of children with emotional and behavioral disorders receiving special educational support. To this end, the Teachers' Report Form and the Family Questionnaire were completed for 84 children (M age of 9.8 years) 2 times with a time lag of 11 months.…

Industrial Protection Manual.

DTIC Science & Technology

1981-06-01

This should be simple to manage at meal time. Diabetics , or persons with food tolerance or food allergy problems, may require special diets and/or...other industries. 5) Number and kinds of medical problems requiring special diets , medicines, etc. (for example, diabetes ), by person. Late Planners...are palatability and cost. Balanced diets are not necessary, since the food is intended for only a limited survival period. Select foods that require

Hospital dental practice in special patients

PubMed Central

Silvestre-Rangil, Javier; Espín-Gálvez, Fernando

2014-01-01

Dental patients with special needs are people with different systemic diseases, multiple disorders or severe physical and/or mental disabilities. A Medline search was made, yielding a total of 29 articles that served as the basis for this study, which offers a brief description of the dental intervention protocols in medically compromised patients. Dental treatment in patients with special needs, whether presenting medical problems or disabilities, is sometimes complex. For this reason the hospital should be regarded as the ideal setting for the care of these individuals. Before starting any dental intervention, a correct patient evaluation is needed, based on a correct anamnesis, medical records and interconsultation reports, and with due assessment of the medical risks involved. The hospital setting offers the advantage of access to electronic medical records and to data referred to any complementary tests that may have been made, and we moreover have the possibility of performing treatments under general anesthesia. In this context, ambulatory major surgery is the best approach when considering general anesthesia in patients of this kind. Key words:Hospital dentistry, special patients, medically compromised patients. PMID:24121921

Examining the Effectiveness of the Corrective Reading Program for Special Education and Non-Special Education Students

ERIC Educational Resources Information Center

McCutcheon, Catherine A.

2013-01-01

The traditional classroom educational approach has been unsuccessful in helping special education and non-special education students who are not proficient readers. The problem addressed in this study was that a large number of American children are experiencing difficulty learning to read. One possible way to help students learn to read is…

A parallel finite element procedure for contact-impact problems using edge-based smooth triangular element and GPU

NASA Astrophysics Data System (ADS)

Cai, Yong; Cui, Xiangyang; Li, Guangyao; Liu, Wenyang

2018-04-01

The edge-smooth finite element method (ES-FEM) can improve the computational accuracy of triangular shell elements and the mesh partition efficiency of complex models. In this paper, an approach is developed to perform explicit finite element simulations of contact-impact problems with a graphical processing unit (GPU) using a special edge-smooth triangular shell element based on ES-FEM. Of critical importance for this problem is achieving finer-grained parallelism to enable efficient data loading and to minimize communication between the device and host. Four kinds of parallel strategies are then developed to efficiently solve these ES-FEM based shell element formulas, and various optimization methods are adopted to ensure aligned memory access. Special focus is dedicated to developing an approach for the parallel construction of edge systems. A parallel hierarchy-territory contact-searching algorithm (HITA) and a parallel penalty function calculation method are embedded in this parallel explicit algorithm. Finally, the program flow is well designed, and a GPU-based simulation system is developed, using Nvidia's CUDA. Several numerical examples are presented to illustrate the high quality of the results obtained with the proposed methods. In addition, the GPU-based parallel computation is shown to significantly reduce the computing time.

Adolescents’ Use of Care for Behavioral and Emotional Problems: Types, Trends, and Determinants

PubMed Central

Reijneveld, Sijmen A.; Wiegersma, P. Auke; Ormel, Johan; Verhulst, Frank C.; Vollebergh, Wilma A. M.; Jansen, Danielle E. M. C.

2014-01-01

Objective While adolescents use various types of care for behavioral and emotional problems, evidence on age trends and determinants per type is scarce. We aimed to assess use of care by adolescents because of behavioral and emotional problems, overall and by type, and its determinants, for ages 10–19 years. Methods We obtained longitudinal data on 2,230 adolescents during ages 10–19 from four measurements regarding use of general care and specialized care (youth social care and mental healthcare) in the preceding 6 months, the Child Behavior Checklist (CBCL) and Youth Self-Report, and child and family characteristics. We analyzed data by multilevel logistic regression. Results Overall rates of use increased from 20.1% at age 10/11 to 32.2% at age 19: general care was used most. At age 10/11 use was higher among boys, at age 19 among girls. Use of general care increased for both genders, whereas use of specialized care increased among girls but decreased among boys. This differential change was associated with CBCL externalizing and internalizing problems, school problems, family socioeconomic status, and parental divorce. Preceding CBCL problems predicted more use: most for mental health care and least for general care. Moreover, general care was used more frequently by low and medium socioeconomic status families, with odds ratios (95%-confidence intervals): 1.52 (1.23;1.88) and 1.40 (1.17;1.67); youth social care in case of parental divorce, 2.07 (1.36;3.17); and of special education, 2.66 (1.78;3.95); and mental healthcare in case of special education, 2.66 (1.60;4.51). Discussion Adolescents with behavioral and emotional problems use general care most frequently. Overall use increases with age. Determinants of use vary per type. PMID:24699408

Adolescents' use of care for behavioral and emotional problems: types, trends, and determinants.

PubMed

Reijneveld, Sijmen A; Wiegersma, P Auke; Ormel, Johan; Verhulst, Frank C; Vollebergh, Wilma A M; Jansen, Danielle E M C

2014-01-01

While adolescents use various types of care for behavioral and emotional problems, evidence on age trends and determinants per type is scarce. We aimed to assess use of care by adolescents because of behavioral and emotional problems, overall and by type, and its determinants, for ages 10-19 years. We obtained longitudinal data on 2,230 adolescents during ages 10-19 from four measurements regarding use of general care and specialized care (youth social care and mental healthcare) in the preceding 6 months, the Child Behavior Checklist (CBCL) and Youth Self-Report, and child and family characteristics. We analyzed data by multilevel logistic regression. Overall rates of use increased from 20.1% at age 10/11 to 32.2% at age 19: general care was used most. At age 10/11 use was higher among boys, at age 19 among girls. Use of general care increased for both genders, whereas use of specialized care increased among girls but decreased among boys. This differential change was associated with CBCL externalizing and internalizing problems, school problems, family socioeconomic status, and parental divorce. Preceding CBCL problems predicted more use: most for mental health care and least for general care. Moreover, general care was used more frequently by low and medium socioeconomic status families, with odds ratios (95%-confidence intervals): 1.52 (1.23;1.88) and 1.40 (1.17;1.67); youth social care in case of parental divorce, 2.07 (1.36;3.17); and of special education, 2.66 (1.78;3.95); and mental healthcare in case of special education, 2.66 (1.60;4.51). Adolescents with behavioral and emotional problems use general care most frequently. Overall use increases with age. Determinants of use vary per type.

Recent research in network problems with applications

NASA Technical Reports Server (NTRS)

Thompson, G. L.

1980-01-01

The capabilities of network codes and their extensions are surveyed in regard to specially structured integer programming problems which are solved by using the solutions of a series of ordinary network problems.

Special Education in Early Childhood. A Burning Issues Series Report.

ERIC Educational Resources Information Center

San Diego County Office of Education, CA.

The National Preschool Coordination Project's (NPCP) Interstate Coordination Committee identified problems in finding and providing special education services for preschool migrant children. They propose training for parents and migrant staff and coordination among agencies to improve services. The NPCP Subcommittee on Special Education identified…

Variational data assimilation system "INM RAS - Black Sea"

NASA Astrophysics Data System (ADS)

Parmuzin, Eugene; Agoshkov, Valery; Assovskiy, Maksim; Giniatulin, Sergey; Zakharova, Natalia; Kuimov, Grigory; Fomin, Vladimir

2013-04-01

Development of Informational-Computational Systems (ICS) for Data Assimilation Procedures is one of multidisciplinary problems. To study and solve these problems one needs to apply modern results from different disciplines and recent developments in: mathematical modeling; theory of adjoint equations and optimal control; inverse problems; numerical methods theory; numerical algebra and scientific computing. The problems discussed above are studied in the Institute of Numerical Mathematics of the Russian Academy of Science (INM RAS) in ICS for Personal Computers (PC). Special problems and questions arise while effective ICS versions for PC are being developed. These problems and questions can be solved with applying modern methods of numerical mathematics and by solving "parallelism problem" using OpenMP technology and special linear algebra packages. In this work the results on the ICS development for PC-ICS "INM RAS - Black Sea" are presented. In the work the following problems and questions are discussed: practical problems that can be studied by ICS; parallelism problems and their solutions with applying of OpenMP technology and the linear algebra packages used in ICS "INM - Black Sea"; Interface of ICS. The results of ICS "INM RAS - Black Sea" testing are presented. Efficiency of technologies and methods applied are discussed. The work was supported by RFBR, grants No. 13-01-00753, 13-05-00715 and by The Ministry of education and science of Russian Federation, project 8291, project 11.519.11.1005 References: [1] V.I. Agoshkov, M.V. Assovskii, S.A. Lebedev, Numerical simulation of Black Sea hydrothermodynamics taking into account tide-forming forces. Russ. J. Numer. Anal. Math. Modelling (2012) 27, No.1, 5-31 [2] E.I. Parmuzin, V.I. Agoshkov, Numerical solution of the variational assimilation problem for sea surface temperature in the model of the Black Sea dynamics. Russ. J. Numer. Anal. Math. Modelling (2012) 27, No.1, 69-94 [3] V.B. Zalesny, N.A. Diansky, V.V. Fomin, S.N. Moshonkin, S.G. Demyshev, Numerical model of the circulation of Black Sea and Sea of Azov. Russ. J. Numer. Anal. Math. Modelling (2012) 27, No.1, 95-111 [4] V.I. Agoshkov, S.V. Giniatulin, G.V. Kuimov. OpenMP technology and linear algebra packages in the variation data assimilation systems. - Abstracts of the 1-st China-Russia Conference on Numerical Algebra with Applications in Radiactive Hydrodynamics, Beijing, China, October 16-18, 2012. [5] Zakharova N.B., Agoshkov V.I., Parmuzin E.I., The new method of ARGO buoys system observation data interpolation. Russian Journal of Numerical Analysis and Mathematical Modelling. Vol. 28, Issue 1, 2013.

Military Social Work: Opportunities and Challenges for Social Work Education

PubMed Central

Wooten, Nikki R.

2015-01-01

Military social work is a specialized field of practice spanning the micro-macro continuum and requiring advanced social work knowledge and skills. The complex behavioral health problems and service needs of Iraq and Afghanistan veterans highlight the need for highly trained social work professionals who can provide militarily-relevant and culturally-responsive evidence-informed services. Responding to the military behavioral health workforce and service needs of recently returned veterans presents both opportunities and challenges for military social work education. This article discusses the rationale for a military social work specialization, the need for military social work education, and opportunities and challenges for social work education. An integrated model of intellectual capital is proposed to guide strategic planning for future military social work education. PMID:26089628

CERTAIN CONCEPTS OF “PRAMEHA” (DIABETES) IN AYURVEDA (INDIAN SYSTEM OF MEDICINE) WITH SPECIAL REFERENCE TO THE RELATIONSHIP BETWEEN ANCIENT INDIAN AND MODERN THOUGHTS

PubMed Central

Rajasekharan, S.; Raju, G.S.

1982-01-01

Prameha (Diabetes) which has been a global problem is well described in the ancient Indian classics life the Vedas and the Ayurvedic works which ensued the Vedic period. In the present work, the authors have tried to focus the narrations on pramehas in Vedic literature with special reference to the “Kauchika Soothra” of Atharva Veda. A new hypothesis comparing the actions of pittatejas which is set free by the pitta dharakala with the actions of the hormones like insulin and glucagon is also discussed. The aetiopathogenesis of pramehas as described by the Ayurvedic authors with a glance to the therapeutic measures is also included in the study PMID:22556947

Animals in biomedical space research

NASA Astrophysics Data System (ADS)

Phillips, Robert W.

The use of experimental animals has been a major component of biomedical research progress. Using animals in space presents special problems, but also provides special opportunities. Rat and squirrel monkeys experiments have been planned in concert with human experiments to help answer fundamental questions concerning the effect of weightlessness on mammalian function. For the most part, these experiments focus on identified changes noted in humans during space flight. Utilizing space laboratory facilities, manipulative experiments can be completed while animals are still in orbit. Other experiments are designed to study changes in gravity receptor structure and function and the effect of weightlessness on early vertebrate development. Following these preliminary animals experiments on Spacelab Shuttle flights, longer term programs of animal investigation will be conducted on Space Station.

Chosen interval methods for solving linear interval systems with special type of matrix

NASA Astrophysics Data System (ADS)

Szyszka, Barbara

2013-10-01

The paper is devoted to chosen direct interval methods for solving linear interval systems with special type of matrix. This kind of matrix: band matrix with a parameter, from finite difference problem is obtained. Such linear systems occur while solving one dimensional wave equation (Partial Differential Equations of hyperbolic type) by using the central difference interval method of the second order. Interval methods are constructed so as the errors of method are enclosed in obtained results, therefore presented linear interval systems contain elements that determining the errors of difference method. The chosen direct algorithms have been applied for solving linear systems because they have no errors of method. All calculations were performed in floating-point interval arithmetic.

An alternative approach for neural network evolution with a genetic algorithm: crossover by combinatorial optimization.

PubMed

García-Pedrajas, Nicolás; Ortiz-Boyer, Domingo; Hervás-Martínez, César

2006-05-01

In this work we present a new approach to crossover operator in the genetic evolution of neural networks. The most widely used evolutionary computation paradigm for neural network evolution is evolutionary programming. This paradigm is usually preferred due to the problems caused by the application of crossover to neural network evolution. However, crossover is the most innovative operator within the field of evolutionary computation. One of the most notorious problems with the application of crossover to neural networks is known as the permutation problem. This problem occurs due to the fact that the same network can be represented in a genetic coding by many different codifications. Our approach modifies the standard crossover operator taking into account the special features of the individuals to be mated. We present a new model for mating individuals that considers the structure of the hidden layer and redefines the crossover operator. As each hidden node represents a non-linear projection of the input variables, we approach the crossover as a problem on combinatorial optimization. We can formulate the problem as the extraction of a subset of near-optimal projections to create the hidden layer of the new network. This new approach is compared to a classical crossover in 25 real-world problems with an excellent performance. Moreover, the networks obtained are much smaller than those obtained with classical crossover operator.

Identity method for particle number fluctuations and correlations

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gorenstein, M. I.

An incomplete particle identification distorts the observed event-by-event fluctuations of the hadron chemical composition in nucleus-nucleus collisions. A new experimental technique called the identity method was recently proposed. It eliminated the misidentification problem for one specific combination of the second moments in a system of two hadron species. In the present paper, this method is extended to calculate all the second moments in a system with an arbitrary number of hadron species. Special linear combinations of the second moments are introduced. These combinations are presented in terms of single-particle variables and can be found experimentally from the event-by-event averaging. Themore » mathematical problem is then reduced to solving a system of linear equations. The effect of incomplete particle identification is fully eliminated from the final results.« less

Measurement Model Nonlinearity in Estimation of Dynamical Systems

NASA Astrophysics Data System (ADS)

Majji, Manoranjan; Junkins, J. L.; Turner, J. D.

2012-06-01

The role of nonlinearity of the measurement model and its interactions with the uncertainty of measurements and geometry of the problem is studied in this paper. An examination of the transformations of the probability density function in various coordinate systems is presented for several astrodynamics applications. Smooth and analytic nonlinear functions are considered for the studies on the exact transformation of uncertainty. Special emphasis is given to understanding the role of change of variables in the calculus of random variables. The transformation of probability density functions through mappings is shown to provide insight in to understanding the evolution of uncertainty in nonlinear systems. Examples are presented to highlight salient aspects of the discussion. A sequential orbit determination problem is analyzed, where the transformation formula provides useful insights for making the choice of coordinates for estimation of dynamic systems.

Optimal use of human and machine resources for Space Station assembly operations

NASA Technical Reports Server (NTRS)

Parrish, Joseph C.

1988-01-01

This paper investigates the issues involved in determining the best mix of human and machine resources for assembly of the Space Station. It presents the current Station assembly sequence, along with descriptions of the available assembly resources. A number of methodologies for optimizing the human/machine tradeoff problem have been developed, but the Space Station assembly offers some unique issues that have not yet been addressed. These include a strong constraint on available EVA time for early flights and a phased deployment of assembly resources over time. A methodology for incorporating the previously developed decision methods to the special case of the Space Station is presented. This methodology emphasizes an application of multiple qualitative and quantitative techniques, including simulation and decision analysis, for producing an objective, robust solution to the tradeoff problem.

Solving a supply chain scheduling problem with non-identical job sizes and release times by applying a novel effective heuristic algorithm

NASA Astrophysics Data System (ADS)

Pei, Jun; Liu, Xinbao; Pardalos, Panos M.; Fan, Wenjuan; Wang, Ling; Yang, Shanlin

2016-03-01

Motivated by applications in manufacturing industry, we consider a supply chain scheduling problem, where each job is characterised by non-identical sizes, different release times and unequal processing times. The objective is to minimise the makespan by making batching and sequencing decisions. The problem is formalised as a mixed integer programming model and proved to be strongly NP-hard. Some structural properties are presented for both the general case and a special case. Based on these properties, a lower bound is derived, and a novel two-phase heuristic (TP-H) is developed to solve the problem, which guarantees to obtain a worst case performance ratio of ?. Computational experiments with a set of different sizes of random instances are conducted to evaluate the proposed approach TP-H, which is superior to another two heuristics proposed in the literature. Furthermore, the experimental results indicate that TP-H can effectively and efficiently solve large-size problems in a reasonable time.

A Recruitment Program for Critical Shortage Elementary Level Special Education Teachers and Related Service Personnel.

ERIC Educational Resources Information Center

Teas, Brenda

A county (Harris County, Texas) education agency, along with Special Education Directors and Personnel Officers from the county's 24 school districts, identified problems in recruiting special education teachers and such related service personnel as psychologists, psychological associates, educational diagnosticians, speech therapists, art…

Special Education for Mentally Handicapped Pupils--A Teaching Manual. Revised Edition.

ERIC Educational Resources Information Center

Miles, Christine

This book describes the state of special education for students with mental disabilities in Pakistan and attempts to introduce beginning teachers to special education practice. The general nature and causes of mental disabilities are discussed, including emotional problems, genetic factors, and brain damage. Teaching methods are described,…

Predictors of the Placement of Cognitively Impaired Residents on Special Care Units.

ERIC Educational Resources Information Center

Riter, Robert N.; Fries, Brant E.

1992-01-01

Examined nursing homes that have both special care units and traditional units to determine factors that cause homes to place cognitively impaired residents on specialized units. Wandering, other problem behaviors, and Medicaid status were not significant predictors of placement. Logistic regression results indicated that functional status was…

Artificial Intelligence Applications in Special Education: How Feasible? Final Report.

ERIC Educational Resources Information Center

Hofmeister, Alan M.; Ferrara, Joseph M.

The research project investigated whether expert system tools have become sophisticated enough to be applied efficiently to problems in special education. (Expert systems are a development of artificial intelligence that combines the computer's capacity for storing specialized knowledge with a general set of rules intended to replicate the…

Early Childhood Special Education for Children with Visual Impairments: Problems and Solutions

ERIC Educational Resources Information Center

Kesiktas, A. Dolunay

2009-01-01

Studies showing developmental delays in infants and children with visual impairments have triggered early childhood special education studies for this population. Early childhood special education guidelines for visually impaired infants and children range from individualized services to personnel preparation issues while all display certain…

A Cooperative Transportation Model for Occupational or Special Education

ERIC Educational Resources Information Center

Brown, Daniel J.

1976-01-01

Demonstrates the application of a mathematical model to the problem of cooperative busing across school districts for transportation to regional centers for occupational or special education. (Author)

On the numerical treatment of selected oscillatory evolutionary problems

NASA Astrophysics Data System (ADS)

Cardone, Angelamaria; Conte, Dajana; D'Ambrosio, Raffaele; Paternoster, Beatrice

2017-07-01

We focus on evolutionary problems whose qualitative behaviour is known a-priori and exploited in order to provide efficient and accurate numerical schemes. For classical numerical methods, depending on constant coefficients, the required computational effort could be quite heavy, due to the necessary employ of very small stepsizes needed to accurately reproduce the qualitative behaviour of the solution. In these situations, it may be convenient to use special purpose formulae, i.e. non-polynomially fitted formulae on basis functions adapted to the problem (see [16, 17] and references therein). We show examples of special purpose strategies to solve two families of evolutionary problems exhibiting periodic solutions, i.e. partial differential equations and Volterra integral equations.

Numerical Boundary Conditions for Computational Aeroacoustics Benchmark Problems

NASA Technical Reports Server (NTRS)

Tam, Chritsopher K. W.; Kurbatskii, Konstantin A.; Fang, Jun

1997-01-01

Category 1, Problems 1 and 2, Category 2, Problem 2, and Category 3, Problem 2 are solved computationally using the Dispersion-Relation-Preserving (DRP) scheme. All these problems are governed by the linearized Euler equations. The resolution requirements of the DRP scheme for maintaining low numerical dispersion and dissipation as well as accurate wave speeds in solving the linearized Euler equations are now well understood. As long as 8 or more mesh points per wavelength is employed in the numerical computation, high quality results are assured. For the first three categories of benchmark problems, therefore, the real challenge is to develop high quality numerical boundary conditions. For Category 1, Problems 1 and 2, it is the curved wall boundary conditions. For Category 2, Problem 2, it is the internal radiation boundary conditions inside the duct. For Category 3, Problem 2, they are the inflow and outflow boundary conditions upstream and downstream of the blade row. These are the foci of the present investigation. Special nonhomogeneous radiation boundary conditions that generate the incoming disturbances and at the same time allow the outgoing reflected or scattered acoustic disturbances to leave the computation domain without significant reflection are developed. Numerical results based on these boundary conditions are provided.

Turkish Special Education Teachers' Reported Use of Positive and Reductive Interventions for Problem Behaviors: An Examination of the Variables Associated with Use

ERIC Educational Resources Information Center

Turan, Yasemin; Erbas, Dilek; Ozkan, Serife Yucesoy; Kurkuoglu, Burcu Ulke

2010-01-01

The purpose of this survey study was to determine the following: (a) What strategies do Turkish special education teachers use to address problem behaviors in their classroom? (b) What are teachers' views with regard to the effectiveness and acceptability of these strategies? (c) Is there a relationship between the use of strategies and teachers'…

On problems in defining abstract and metaphysical concepts--emergence of a new model.

PubMed

Nahod, Bruno; Nahod, Perina Vukša

2014-12-01

Basic anthropological terminology is the first project covering terms from the domain of the social sciences under the Croatian Special Field Terminology program (Struna). Problems that have been sporadically noticed or whose existence could have been presumed during the processing of terms mainly from technical fields and sciences have finally emerged in "anthropology". The principles of the General Theory of Terminology (GTT), which are followed in Struna, were put to a truly exacting test, and sometimes stretched beyond their limits when applied to concepts that do not necessarily have references in the physical world; namely, abstract and metaphysical concepts. We are currently developing a new terminographical model based on Idealized Cognitive Models (ICM), which will hopefully ensure a better cross-filed implementation of various types of concepts and their relations. The goal of this paper is to introduce the theoretical bases of our model. Additionally, we will present a pilot study of the series of experiments in which we are trying to investigate the nature of conceptual categorization in special languages and its proposed difference form categorization in general language.

Implementation and effect of life space crisis intervention in special schools with residential treatment for students with emotional and behavioral disorders (EBD).

PubMed

DOosterlinck, Franky; Goethals, Ilse; Broekaert, Eric; Boekaert, Eric; Schuyten, Gilberte; De Maeyer, Jessica

2008-03-01

The increase of violence in present-day society calls for adequate crisis interventions for students with behavioral problems. Life Space Crisis Intervention (LSCI) is a systematic and formatted response to a student's crisis, based on cognitive, behavioral, psychodynamic and developmental theory. The following research article evaluates a LSCI Program with students referred to special schools with residential treatment because of severe behavioral problems. The evaluation was conducted using a quasi experimental pre-test-post-test control group design. Thirty-one match paired students were pre-tested before the interventions started and post-tested after a period of 11 months. Five standardized questionnaires were examined to assess the effectiveness of the LSCI Program. General Linear Model (GLM) with repeated measures was used to analyze all data. For the total group of subjects (n = 62) it was found that students' perception about their athletic competence decrease significantly after 11 months in residential care. A positive effect of LSCI was found on direct aggression and social desirability.

A dynamic fault tree model of a propulsion system

NASA Technical Reports Server (NTRS)

Xu, Hong; Dugan, Joanne Bechta; Meshkat, Leila

2006-01-01

We present a dynamic fault tree model of the benchmark propulsion system, and solve it using Galileo. Dynamic fault trees (DFT) extend traditional static fault trees with special gates to model spares and other sequence dependencies. Galileo solves DFT models using a judicious combination of automatically generated Markov and Binary Decision Diagram models. Galileo easily handles the complexities exhibited by the benchmark problem. In particular, Galileo is designed to model phased mission systems.

Diagnosis of cutaneous thermal burn injuries by multispectral imaging analysis

NASA Technical Reports Server (NTRS)

Anselmo, V. J.; Zawacki, B. E.

1978-01-01

Special photographic or television image analysis is shown to be a potentially useful technique to assist the physician in the early diagnosis of thermal burn injury. A background on the medical and physiological problems of burns is presented. The proposed methodology for burns diagnosis from both the theoretical and clinical points of view is discussed. The television/computer system constructed to accomplish this analysis is described, and the clinical results are discussed.

Needed Research on Interpersonal Behavior Processes. A Special Report of the USOE-Sponsored Grant Study: Critical Appraisal of Research in the Personality-Emotions-Motivation Domain.

ERIC Educational Resources Information Center

Byrne, Donn; And Others

The task group report presented in this publication is one of a series prepared by eminent psychologists who have served as consultants in the U.S.O.E.-sponsored grant study to conduct a Critical Appraisal of the Personality-Emotions-Motivation-Domain. In order to achieve the goal of identifying important problems and areas for new research and…

Diagnosis and management of symptomatic hemorrhoids.

PubMed

Sneider, Erica B; Maykel, Justin A

2010-02-01

Hemorrhoidal disease is a common problem that is managed by various physicians, ranging from primary care providers to surgeons. This article reviews the pathophysiology, clinical presentation, and updated treatment of hemorrhoids, including nonoperative options, office-based procedures, and surgical interventions from standard excision to stapled hemorrhoidopexy and Doppler-guided ligation. The article also covers complications and provides guidance for special circumstances, such as pregnancy, hemorrhoidal crisis, and inflammatory bowel disease. Copyright 2010 Elsevier Inc. All rights reserved.

Deterministic annealing for density estimation by multivariate normal mixtures

NASA Astrophysics Data System (ADS)

Kloppenburg, Martin; Tavan, Paul

1997-03-01

An approach to maximum-likelihood density estimation by mixtures of multivariate normal distributions for large high-dimensional data sets is presented. Conventionally that problem is tackled by notoriously unstable expectation-maximization (EM) algorithms. We remove these instabilities by the introduction of soft constraints, enabling deterministic annealing. Our developments are motivated by the proof that algorithmically stable fuzzy clustering methods that are derived from statistical physics analogs are special cases of EM procedures.

Oversight of Food and Nutrition Service Programs: Food Stamps, Child Nutrition, and Commodity Distribution. Hearing before the Committee on Agriculture, Nutrition, and Forestry, United States Senate, Ninety-Eighth Congress, Second Session, April 25, 1984.

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. Senate Committee on Agriculture, Nutrition, and Forestry.

The Federal government's oversight of its food and nutrition programs is discussed in this transcript of a Senate hearing. Testimony is presented regarding food stamps, the school lunch program, problems of targeting the needy, the Special Supplemental Food Program for Women, Infants, and Children (WIC), commodity distribution, surplus dairy…

Medical problems and oral care of patients with Down syndrome: a literature review.

PubMed

Abanto, Jenny; Ciamponi, Ana Lidia; Francischini, Elizabeth; Murakami, Christiana; de Rezende, Nathalie Pepe Medeiros; Gallottini, Marina

2011-01-01

When planning the dental treatment of patients with Down syndrome (DS), dental practitioners should always consider their general health, in order to achieve a holistic and interdisciplinary approach. This article presents a literature review of the primary medical conditions in patients with DS that may affect their general health care and the appropriate clinical delivery of oral health care. © 2011 Special Care Dentistry Association and Wiley Periodicals, Inc.

Detection and correction of false segmental duplications caused by genome mis-assembly

PubMed Central

2010-01-01

Diploid genomes with divergent chromosomes present special problems for assembly software as two copies of especially polymorphic regions may be mistakenly constructed, creating the appearance of a recent segmental duplication. We developed a method for identifying such false duplications and applied it to four vertebrate genomes. For each genome, we corrected mis-assemblies, improved estimates of the amount of duplicated sequence, and recovered polymorphisms between the sequenced chromosomes. PMID:20219098

Measurements and Analysis of Reverberation, Target Echo, and Clutter

DTIC Science & Technology

2007-09-30

for Problem 11 (isospeed water). Beyond a few seconds there is excellent agreement between the normal mode (NOGRP and CSNAP), ray (SAFFIRE), and energy...the reverberation, so energy flux or ray -based models are more realistic. More detailed analysis is being developed for a journal paper. 3...comparison of ray , normal-mode, and energy flux results for reverberation in a Pekeris waveguide,” to be presented at special session on Underwater

Decentralized regulation of dynamic systems. [for controlling large scale linear systems

NASA Technical Reports Server (NTRS)

Chu, K. C.

1975-01-01

A special class of decentralized control problem is discussed in which the objectives of the control agents are to steer the state of the system to desired levels. Each agent is concerned about certain aspects of the state of the entire system. The state and control equations are given for linear time-invariant systems. Stability and coordination, and the optimization of decentralized control are analyzed, and the information structure design is presented.

Innovative research on the group teaching mode based on the LabVIEW virtual environment

NASA Astrophysics Data System (ADS)

Liang, Pei; Huang, Jie; Gong, Hua-ping; Dong, Qian-min; Dong, Yan-yan; Sun, Cai-xia

2017-08-01

This paper discusses the widely existing problems of increasing demand of professional engineer in electronic science major and the backward of the teaching mode at present. From one specialized course "Virtual Instrument technique and LABVIEW programming", we explore the new group-teaching mode based on the Virtual Instrument technique, and then the Specific measures and implementation procedures and effect of this teaching mode summarized in the end.

Needed Research on Child Socialization. A Special Report of the USOE-Sponsored Grant Study: Critical Appraisal of Research in the Personality-Emotions-Motivation Domain.

ERIC Educational Resources Information Center

Gorsuch, Richard L.; And Others

The task group report presented in this publication is one of a series prepared by eminent psychologists who have served as consultants in the U.S. Office of Education-sponsored grant study to conduct a Critical Appraisal of the Personality-Emotions-Motivation Domain. In order to achieve the goal of identifying important problems and areas for new…

Space-Based Remote Sensing of Atmospheric Aerosols: The Multi-Angle Spectro-Polarimetric Frontier

NASA Technical Reports Server (NTRS)

Kokhanovsky, A. A.; Davis, A. B.; Cairns, B.; Dubovik, O.; Hasekamp, O. P.; Sano, I.; Mukai, S.; Rozanov, V. V.; Litvinov, P.; Lapyonok, T.;

Treatment of the control mechanisms of light airplanes in the flutter clearance process

NASA Technical Reports Server (NTRS)

Breitbach, E. J.

1979-01-01

It has become more and more evident that many difficulties encountered in the course of aircraft flutter analyses can be traced to strong localized nonlinearities in the control mechanisms. To cope with these problems, more reliable mathematical models paying special attention to control system nonlinearities were established by means of modified ground vibration test procedures in combination with suitably adapted modal synthesis approaches. Three different concepts are presented.

[Genetic engineering of forest woody plants].

PubMed

Mashkina, O S; Butorina, A K

2003-03-01

The present state of genetic engineering (GE) of forest woody plants is considered with special reference to the materials of the International Conference "Wood, Breeding, Biotechnology and Industrial Expectations" held in France in June, 2001. Main tree species subjected to GE are listed, aims of constructing transgenic plants discussed, and methods described. Major achievements in the field are considered along with the problems associated with the employment of GE in the breeding of forest woody plants.

Wastes from paper and pulp mills

PubMed Central

Makkonen, Osmo A. P.

1956-01-01

The disposal of wastes from paper and pulp mills—a problem of particular importance in the northern European countries of Norway, Sweden and Denmark, where wood-processing is one of the main industries—is discussed. The various types of waste produced are described, and their pollution potential is assessed, in terms of population equivalents, with special reference to the present position in Finland. The methods available for the treatment of these wastes are briefly outlined. PMID:13374536

Chronic pelvic pain syndrome: role of a thorough clinical assessment.

PubMed

Quaghebeur, Jörgen; Wyndaele, Jean-Jacques

2015-04-01

Chronic pelvic pain syndrome (CPPS) presents with a variety of symptoms affecting multiple systems. There is no universal treatment that can be given to all patients with CPPS. The results of treatment depend greatly on an accurate diagnosis. A thorough clinical assessment, including a "four-step plan", should include paying special attention to the musculoskeletal system. This assessment is not difficult to perform and provides valuable information on possible muscular problems and neuropathy.

[Topical problems of the diagnosis and rehabilitative treatment of lymphedema of the lower extremities].

PubMed

Badtieva, V A; Kniazeva, T A; Apkhanova, T V

2010-01-01

The present review of the literature data highlights modern approaches to and major trends in diagnostics and conservative treatment of lymphedema of the lower extremities based on the generalized world experience. Patients with lymphedema of the lower extremities comprise a "difficult to manage" group because the disease is characterized by steady progression and marked refractoriness to various conservative therapeutic modalities creating problems for both the patient and the attending physician. Modern methods for the diagnosis of lymphedema are discussed with special reference to noninvasive and minimally invasive techniques (such as lymphoscintiography, computed tomography, MRT, laser Doppler flowmetry, etc.). During the last 20 years, combined conservative therapy has been considered as the method of choice for the management of different stages and forms of lymphedema of the lower extremities in foreign clinics. The basis of conservative therapy is constituted by manual lymph drainage (MLD), compression bandages using short-stretch materials, physical exercises, and skin care (using the method of M. Foldi). Also reviewed are the main physiobalneotherapeutic methods traditionally widely applied for the treatment of lymphedema of the lower extremities in this country. Original methods for the same purpose developed by the authors are described including modifications of cryotherapy, pulsed matrix laserotherapy, hydro- and balneotherapy. Mechanisms of their therapeutic action on the main pathogenetic factors responsible for the development of lymphedema (with special reference to lymph transport and formation) are discussed. The principles of combined application of physiotherapeutic methods for the rehabilitative treatment of patients presenting with lymphedema of the lower extremities are briefly substantiated. Special emphasis is laid on their influence on major components of the pathological process.

Children with behavioral problems and motor problems have a worse neurological condition than children with behavioral problems only.

PubMed

Peters, Lieke H J; Maathuis, Carel G B; Hadders-Algra, Mijna

2014-12-01

Some evidence suggests that children with specific behavioral problems are at risk for motor problems. It is unclear whether neurological condition plays a role in the propensity of children with behavioral problems to develop motor problems. To examine the relation between behavioral problems, motor performance and neurological condition in school-aged children. Cross-sectional study. 174 children (95 boys) receiving mainstream education and 106 children (82 boys) receiving special education aged 6 to 13 years (mean 9 y 7 m, SD 1 y 10 m). Behavior was assessed with questionnaires: the parental Child Behavior Checklist (CBCL) and Teacher's Report Form (TRF). Motor performance was assessed with the Movement Assessment Battery for Children (MABC). MABC-scores ≥5th percentile were considered as age-adequate and scores <5th percentile indicated definite motor problems. Neurological condition was assessed in terms of Minor Neurological Dysfunction (MND). The majority of specific behavioral problems were associated with definite motor problems, except somatic complaints and rule breaking behavior. Children with externalizing problems, according to the CBCL or TRF, and motor problems had more often MND than children with externalizing problems only. The same holds true for internalizing problems according to the CBCL. The present study demonstrated that various forms of behavioral problems were associated with motor problems. Especially children with motor and behavioral problems showed MND. Copyright © 2014 Elsevier Ltd. All rights reserved.

Assessment of vehicle safety problems for special driving populations

DOT National Transportation Integrated Search

1979-02-16

The report describes vehicle safety problems reported in interviews with 460 physically limited drivers and 41 physically limited non-drivers. The problems reported involved operation of primary and secondary controls, operating other vehicle mechani...

Screening for pragmatic language impairment: the potential of the children's communication checklist.

PubMed

Ketelaars, Mieke P; Cuperus, Juliane M; van Daal, John; Jansonius, Kino; Verhoeven, Ludo

2009-01-01

The present study examines the validity of the Dutch Children's Communication Checklist (CCC) for children in kindergarten in a community sample, in order to assess the feasibility of using it as a screening instrument in the general population. Teachers completed the CCC for a representative sample of 1396 children at kindergarten level, taken from 53 primary schools in The Netherlands. The CCC was also completed for a clinical group consisting of children with SLI in special education. Reliability as measured with internal consistency scores was found to be good for the community sample. With regard to the construct validity, a five-factor second-order factor model was found when the pragmatic subscales were analysed, which provided a reasonable fit. Criterion validity as measured using the concordance between the CCC and teacher opinions was moderate. The children identified by the CCC as having Pragmatic Language Impairment (defined as scoring below the cut off of 132) were often characterized by the teachers as having social-emotional problems, language problems or combined problems. Comparison with a clinical SLI sample showed the pragmatically impaired children in the community sample to have a profile similar to that of the clinical group of children with PLI in special education. The main difference was visible in structural language problems, which were less severe for the PLI group in mainstream education. The results of this study suggest that screening for PLI is indeed possible using the CCC.

[Institutional Prevalence and Context of Severe Sleep Disorders in Psychosomatic Rehabilitation].

PubMed

Linden, Michael

2015-07-01

In cases of burnout, chronic fatigue, depression, somatization, overtaxation, or impairment in wellbeing and work capacity, the cause can be sleep problems. Goal of the present study was to estimate the prevalence of sleep problems in psychosomatic inpatients. Included were 1325 unselected patients from a psychosomatic rehabilitation hospital. They filled in the SCL-90, the PSQI and were assessed in respect to their clinical, social and occupational status. At admission 13.4% of patients had a PSQI score of 5 at maximum (no sleep problem), 34.6% 6 to 10 (moderate sleep problem) und 52.1% over 10 (severe sleep problem). At discharge there was a reduction of sleep problems with 32.7% of patients over 10. Sleep problems were significantly associated with more severe mental problems, older age, women, lower socioeconomic status, and also incapacity to work or early retirement. Mental disorders can cause sleep problems and sleep problems mental disorders and incapacity to work, with a negative interaction. The high rate of severe sleep problems in rehabilitation patients shows that this problem is in need of special diagnostic and therapeutic attention. Also, the equipment of hospitals and the qualification of therapists should allow adequate care. © Georg Thieme Verlag KG Stuttgart · New York.

Teachers' perceptions of remediation possibilities of Dutch students in special education.

PubMed

Bakker, Joep T A; Bosman, Anna M T

2006-12-01

Research suggests that referral practices of teachers in regular education are not only affected by the level of learning difficulties but also by student behaviour and the level of students' parental involvement in education. It was hypothesized that teachers maintain a notion of the 'ideal' student, who has relatively good academic skills, is well behaved and has highly involved parents. The main question of this study was whether special-education teachers' perceptions regarding remediation possibilities are similarly affected by student behaviour and the level of students' parental involvement. Nineteen experienced Dutch school teachers in special education each evaluated four students: two with relatively high and two with relatively low academic performance. Three questionnaires to assess learning difficulties, behavioural problems and the level of parental involvement were developed. Teachers' perceptions of remediation possibilities were related to the severity of the learning difficulties and academic skill. Academic skill, in turn, was strongly related to the perception of the children's behavioural problems and parental involvement, which, in turn, links the perception of remediation possibilities indirectly to children's behavioural problems and parental involvement. Special education teachers may also hold an image of the 'ideal' student. Students with high academic achievement levels are perceived as having fewer behavioural problems and more highly involved parents than students with low academic achievement levels. Whether this is due to justified or unjustified teachers' perceptions is a matter for future research. What is important is that stereotyping of students (justly or not) poses a serious problem for the Dutch reintegration policy.

Prescribed curvature tensor in locally conformally flat manifolds

NASA Astrophysics Data System (ADS)

Pina, Romildo; Pieterzack, Mauricio

2018-01-01

A global existence theorem for the prescribed curvature tensor problem in locally conformally flat manifolds is proved for a special class of tensors R. Necessary and sufficient conditions for the existence of a metric g ¯ , conformal to Euclidean g, are determined such that R ¯ = R, where R ¯ is the Riemannian curvature tensor of the metric g ¯ . The solution to this problem is given explicitly for special cases of the tensor R, including the case where the metric g ¯ is complete on Rn. Similar problems are considered for locally conformally flat manifolds.

Unraveling the Mystery of the Origin of Mathematical Problems: Using a Problem-Posing Framework with Prospective Mathematics Teachers

ERIC Educational Resources Information Center

Contreras, Jose

2007-01-01

In this article, I model how a problem-posing framework can be used to enhance our abilities to systematically generate mathematical problems by modifying the attributes of a given problem. The problem-posing model calls for the application of the following fundamental mathematical processes: proving, reversing, specializing, generalizing, and…

Some Pitfalls in Special Relativity

ERIC Educational Resources Information Center

Chai, An-Ti

1973-01-01

The problem of observing a collision between two spaceships is utilized to illustrate the misuse of time dilation and length contraction, and the incorrect description of space-time coordinates in special relativity. (Author/DF)

15 CFR 700.5 - Special priorities assistance.

Code of Federal Regulations, 2011 CFR

2011-01-01

... DEFENSE PRIORITIES AND ALLOCATIONS SYSTEM Overview § 700.5 Special priorities assistance. (a) The DPAS is designed to be largely self-executing. However, from time-to-time production or delivery problems will...

15 CFR 700.5 - Special priorities assistance.

Code of Federal Regulations, 2010 CFR

2010-01-01

... DEFENSE PRIORITIES AND ALLOCATIONS SYSTEM Overview § 700.5 Special priorities assistance. (a) The DPAS is designed to be largely self-executing. However, from time-to-time production or delivery problems will...

15 CFR 700.5 - Special priorities assistance.

Code of Federal Regulations, 2012 CFR

2012-01-01

... DEFENSE PRIORITIES AND ALLOCATIONS SYSTEM Overview § 700.5 Special priorities assistance. (a) The DPAS is designed to be largely self-executing. However, from time-to-time production or delivery problems will...

15 CFR 700.5 - Special priorities assistance.

Code of Federal Regulations, 2014 CFR

2014-01-01

... DEFENSE PRIORITIES AND ALLOCATIONS SYSTEM Overview § 700.5 Special priorities assistance. (a) The DPAS is designed to be largely self-executing. However, from time-to-time production or delivery problems will...

15 CFR 700.5 - Special priorities assistance.

Code of Federal Regulations, 2013 CFR

2013-01-01

... DEFENSE PRIORITIES AND ALLOCATIONS SYSTEM Overview § 700.5 Special priorities assistance. (a) The DPAS is designed to be largely self-executing. However, from time-to-time production or delivery problems will...

Air Pollution Control and Waste Management

EPA Science Inventory

This special issue addresses air pollution control and waste management, two environmental problems that are usually considered separately. Indeed, one of the challenges of environmental protection is that problems are addressed in 'media-specific' ways. In reality, these problem...

An optimal control approach to the design of moving flight simulators

NASA Technical Reports Server (NTRS)

Sivan, R.; Ish-Shalom, J.; Huang, J.-K.

1982-01-01

An abstract flight simulator design problem is formulated in the form of an optimal control problem, which is solved for the linear-quadratic-Gaussian special case using a mathematical model of the vestibular organs. The optimization criterion used is the mean-square difference between the physiological outputs of the vestibular organs of the pilot in the aircraft and the pilot in the simulator. The dynamical equations are linearized, and the output signal is modeled as a random process with rational power spectral density. The method described yields the optimal structure of the simulator's motion generator, or 'washout filter'. A two-degree-of-freedom flight simulator design, including single output simulations, is presented.

Hypergeometric Series Solution to a Class of Second-Order Boundary Value Problems via Laplace Transform with Applications to Nanofluids

NASA Astrophysics Data System (ADS)

Ebaid, Abdelhalim; Wazwaz, Abdul-Majid; Alali, Elham; Masaedeh, Basem S.

2017-03-01

Very recently, it was observed that the temperature of nanofluids is finally governed by second-order ordinary differential equations with variable coefficients of exponential orders. Such coefficients were then transformed to polynomials type by using new independent variables. In this paper, a class of second-order ordinary differential equations with variable coefficients of polynomials type has been solved analytically. The analytical solution is expressed in terms of a hypergeometric function with generalized parameters. Moreover, applications of the present results have been applied on some selected nanofluids problems in the literature. The exact solutions in the literature were derived as special cases of our generalized analytical solution.

Dynamic loading and stress life analysis of permanent space station modules

NASA Astrophysics Data System (ADS)

Anisimov, A. V.; Krokhin, I. A.; Likhoded, A. I.; Malinin, A. A.; Panichkin, N. G.; Sidorov, V. V.; Titov, V. A.

2016-11-01

Some methodological approaches to solving several key problems of dynamic loading and structural strength analysis of Permanent Space Station (PSS)modules developed on the basis of the working experience of Soviet and Russian PSS and the International Space station (ISS) are presented. The solutions of the direct and semi-inverse problems of PSS structure dynamics are mathematically stated. Special attention is paid to the use of the results of ground structural strength tests of space station modules and the data on the actual flight actions on the station and its dynamic responses in the orbital operation regime. The procedure of determining the dynamics and operation life parameters of elements of the PSS modules is described.

Recent developments in the reclamation of surface mined lands

USGS Publications Warehouse

Sharma, K.D.; Gough, L.P.; Kumar, S.; Sharma, B.K.; Saxena, S.K.

1997-01-01

A broad review of mine land reclamation problems and challenges in arid lands is presented with special emphasis on work recently completed in India. The economics of mining in the Indian Desert is second only to agriculture in importance. Lands disturbed by mining, however, have only recently been the focus of reclamation attempts. Studies were made and results compiled of problems associated with germplasm selection, soil, plant and overburden characterization and manipulation, plant establishment methods utilized, soil amendment needs, use and conservation of available water and the evaluation of ecosystem sustainability. Emphasis is made of the need for multi-disciplinary approaches to mine land reclamation research and for the long-term monitoring of reclamation success.

Special Education Teacher Preparation in Classroom Management: Implications for Students with Emotional and Behavioral Disorders

ERIC Educational Resources Information Center

Oliver, Regina M.; Reschly, Daniel J.

2010-01-01

Special education teachers' skills with classroom organization and behavior management affect the emergence and persistence of behavior problems as well as the success of inclusive practice for students with emotional and behavioral disorders (EBD). Adequate special education teacher preparation and strong classroom organization and behavior…

Rural Special Education Quarterly, Volume 5, Nos. 1-4, Spring-Fall 1984, Winter 1985.

ERIC Educational Resources Information Center

Rural Special Education Quarterly, 1985

1985-01-01

Four newsletter issues examine aspects of rural special education. Issue number one considers the generic problems or solutions in rural special education leadership, the need for innovative preservice preparation for rural educators, preservice training for Native American professionals and paraprofessionals, a model for rural early intervention,…

Important Issues in Rural Education: A Collection of ERIC/CRESS Fact Sheets and Mini Reviews.

ERIC Educational Resources Information Center

Seager, D. D.; And Others

The two mini reviews and two fact sheets contained in this collection synthesize basic information regarding four issues in rural education: special education, transportation, early childhood education, and reading achievement. Solutions to the special education problems of child identification, parent involvement, delivery of special education…

A Socio-Cultural Analysis of Practitioner Perspectives on Implementation of Evidence-Based Practice in Special Education

ERIC Educational Resources Information Center

Hudson, Roxanne F.; Davis, Carol A.; Blum, Grace; Greenway, Rosanne; Hackett, Jacob; Kidwell, James; Liberty, Lisa; McCollow, Megan; Patish, Yelena; Pierce, Jennifer; Schulze, Maggie; Smith, Maya M.; Peck, Charles A.

2016-01-01

Despite the central role "evidence-based practice" (EBP) plays in special education agendas for both research and policy, it is widely recognized that achieving "implementation" of EBPs remains an elusive goal. In an effort to better understand this problem, we interviewed special education practitioners in four school…

An Ethnographic Study of Special Education Services in a Rural Area of Mexico.

ERIC Educational Resources Information Center

Argus-Calvo, Beverley; And Others

1996-01-01

Overviews the current status of special education programs in Mexico in general and in Ciudad Juarez (Chihuahua) and surrounding rural areas. Two special education administrators employed in the Ciudad Juarez school system discuss problems associated with teacher training and lack of administrative support, and the importance of parental and…

The State of Special Education in Catholic Schools

ERIC Educational Resources Information Center

DeFiore, Leonard

2006-01-01

Catholic educators in recent years have worked to increase their schools' capacity to provide special education services to more students. The expansion of federal programs to support students with special needs has aided in dealing with this issue, but it has also exacerbated problems. The exacerbation comes from the increased focus on both the…

An Investigation into Pre-Service Special Education Teachers' Mathematical Skills, Self-Efficacy, and Teaching Methodology

ERIC Educational Resources Information Center

Hinton, Vanessa; Flores, Margaret; Burton, Megan; Curtis, Rebecca

2015-01-01

The purpose of this mixed method study was to investigate future special education teachers' preparation for effectively teaching mathematics. During the last semester of their program, pre-service special education teachers completed elementary level mathematics computation and problem solving assessments, a mathematics efficacy beliefs survey,…

A Phenomenological Study of Mentoring Policies and Practices on Special Education Teachers

ERIC Educational Resources Information Center

Smith-Washington, Vannessa A.

2017-01-01

High teacher attrition rates adversely affect beginning special education teachers remaining on the job many of whom lack teaching experience. With high rates, replacements are needed, especially in the field of special education where new teachers leave at higher rates than general education teachers. The general problem is that limited…

Problems Faced by Preservice Special Education Teachers in Jordan

ERIC Educational Resources Information Center

Al-Hiary, Ghaleb M.; Almakanin, Hisham A.; Tabbal, Suha A.

2015-01-01

One of the most important factors in the success of educating children with special needs is the quality of the special education teacher. While teachers are responsible for a plethora of duties, it is important that teacher preparation programs provide adequate training to ensure teachers are well prepared for the teaching profession. However,…

Using Virtual Technology to Enhance Field Experiences for Pre-Service Special Education Teachers

ERIC Educational Resources Information Center

Billingsley, Glenna M.; Scheuermann, Brenda K.

2014-01-01

Teacher educators of pre-service teachers of students with special needs face challenges in providing the unique knowledge and skills required of highly qualified special education teachers. The emerging use of various forms of virtual technology, however, offers realistic solutions to these problems. This systematic review of literature examines…

Conquering the Physics GRE

NASA Astrophysics Data System (ADS)

Kahn, Yoni; Anderson, Adam

2018-03-01

Preface; How to use this book; Resources; 1. Classical mechanics; 2. Electricity and magnetism; 3. Optics and waves; 4. Thermodynamics and statistical mechanics; 5. Quantum mechanics and atomic physics; 6. Special relativity; 7. Laboratory methods; 8. Specialized topics; 9. Special tips and tricks for the Physics GRE; Sample exams and solutions; References; Equation index; Subject index; Problems index.

Ethical and Legal Landmines: Causal Inference in Special Education Decisions

ERIC Educational Resources Information Center

Sadeh, Shanna; Sullivan, Amanda L.

2017-01-01

In this article, we discuss conflict between law and science relative to the presumption in special education law that multidisciplinary teams and others identify the causes of problems giving rise to special education needs. First, we explain eligibility criteria, highlighting ambiguities therein and why criteria constitute a mandate for causal…

African American Learners in Special Education: A Closer Look at Milwaukee

ERIC Educational Resources Information Center

Obiakor, Festus E.; Harris, Mateba K.; Offor, MaxMary T.; Beachum, Floyd D.

2010-01-01

Problems facing African American students with special needs are numerous and complex. Although processes and procedures are in place to properly serve these students, far too many become ensnared in webs of bureaucracy and benign neglect. This article examines African American students? experiences with special education in Milwaukee Public…

According to the Opinions of Teachers of Individuals with Intellectual Disabilities: What Are the Sexual Problems of Students with Special Education Needs? How Should Sexual Education Be Provided for Them?

ERIC Educational Resources Information Center

Girgin-Büyükbayraktar, Çagla; Konuk-Er, Rukiye; Kesici, Sahin

2017-01-01

The purpose of this research is to determine what sexual problems that individuals with special educations needs have and how to provide sexual education for these students, depending on the opinions of the teachers of mentally handicapped individuals. The qualitative research technique was employed in this research. Purposeful sampling method was…

Genetic algorithm parameters tuning for resource-constrained project scheduling problem

NASA Astrophysics Data System (ADS)

Tian, Xingke; Yuan, Shengrui

2018-04-01

Project Scheduling Problem (RCPSP) is a kind of important scheduling problem. To achieve a certain optimal goal such as the shortest duration, the smallest cost, the resource balance and so on, it is required to arrange the start and finish of all tasks under the condition of satisfying project timing constraints and resource constraints. In theory, the problem belongs to the NP-hard problem, and the model is abundant. Many combinatorial optimization problems are special cases of RCPSP, such as job shop scheduling, flow shop scheduling and so on. At present, the genetic algorithm (GA) has been used to deal with the classical RCPSP problem and achieved remarkable results. Vast scholars have also studied the improved genetic algorithm for the RCPSP problem, which makes it to solve the RCPSP problem more efficiently and accurately. However, for the selection of the main parameters of the genetic algorithm, there is no parameter optimization in these studies. Generally, we used the empirical method, but it cannot ensure to meet the optimal parameters. In this paper, the problem was carried out, which is the blind selection of parameters in the process of solving the RCPSP problem. We made sampling analysis, the establishment of proxy model and ultimately solved the optimal parameters.

Method for oil pipeline leak detection based on distributed fiber optic technology

NASA Astrophysics Data System (ADS)

Chen, Huabo; Tu, Yaqing; Luo, Ting

1998-08-01

Pipeline leak detection is a difficult problem to solve up to now. Some traditional leak detection methods have such problems as high rate of false alarm or missing detection, low location estimate capability. For the problems given above, a method for oil pipeline leak detection based on distributed optical fiber sensor with special coating is presented. The fiber's coating interacts with hydrocarbon molecules in oil, which alters the refractive indexed of the coating. Therefore the light-guiding properties of the fiber are modified. Thus pipeline leak location can be determined by OTDR. Oil pipeline lead detection system is designed based on the principle. The system has some features like real time, multi-point detection at the same time and high location accuracy. In the end, some factors that probably influence detection are analyzed and primary improving actions are given.

Optimal routing of IP packets to multi-homed servers

NASA Astrophysics Data System (ADS)

Swartz, K. L.

1992-08-01

Multi-homing, or direct attachment to multiple networks, offers both performance and availability benefits for important servers on busy networks. Exploiting these benefits to their fullest requires a modicum of routing knowledge in the clients. Careful policy control must also be reflected in the routing used within the network to make best use of specialized and often scarce resources. While relatively straightforward in theory, this problem becomes much more difficult to solve in a real network containing often intractable implementations from a variety of vendors. This paper presents an analysis of the problem and proposes a useful solution for a typical campus network. Application of this solution at the Stanford Linear Accelerator Center is studied and the problems and pitfalls encountered are discussed, as are the workarounds used to make the system work in the real world.

Homelessness as a public mental health and social problem: New knowledge and solutions.

PubMed

Tsai, Jack; O'Toole, Thomas; Kearney, Lisa K

2017-05-01

Homelessness is a major public health problem that has received considerable attention from clinicians, researchers, administrators, and policymakers in recent years. In 2016, 550,000 individuals were homeless in the United States (U.S. Department of Housing and Urban Development, 2016) with 4.2% of individuals in the United States experiencing homelessness for over 1 month sometime in their lives and 1.5% experiencing homelessness in the last year (Tsai, 2017). Homelessness remains a recalcitrant problem and a ripe area for study, particularly in addressing needs of individuals at high risk for homelessness and those from understudied populations. New and innovative measurement approaches, interventions, and study methodologies are presented in this special issue to shed light on how psychology can help benefit and improve homeless services. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Dynamically Reconfigurable Approach to Multidisciplinary Problems

NASA Technical Reports Server (NTRS)

Alexandrov, Natalie M.; Lewis, Robert Michael

2003-01-01

The complexity and autonomy of the constituent disciplines and the diversity of the disciplinary data formats make the task of integrating simulations into a multidisciplinary design optimization problem extremely time-consuming and difficult. We propose a dynamically reconfigurable approach to MDO problem formulation wherein an appropriate implementation of the disciplinary information results in basic computational components that can be combined into different MDO problem formulations and solution algorithms, including hybrid strategies, with relative ease. The ability to re-use the computational components is due to the special structure of the MDO problem. We believe that this structure can and should be used to formulate and solve optimization problems in the multidisciplinary context. The present work identifies the basic computational components in several MDO problem formulations and examines the dynamically reconfigurable approach in the context of a popular class of optimization methods. We show that if the disciplinary sensitivity information is implemented in a modular fashion, the transfer of sensitivity information among the formulations under study is straightforward. This enables not only experimentation with a variety of problem formations in a research environment, but also the flexible use of formulations in a production design environment.

Medication prescribing errors in the medical intensive care unit of Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia.

PubMed

Sada, Oumer; Melkie, Addisu; Shibeshi, Workineh

2015-09-16

Medication errors (MEs) are important problems in all hospitalized populations, especially in intensive care unit (ICU). Little is known about the prevalence of medication prescribing errors in the ICU of hospitals in Ethiopia. The aim of this study was to assess medication prescribing errors in the ICU of Tikur Anbessa Specialized Hospital using retrospective cross-sectional analysis of patient cards and medication charts. About 220 patient charts were reviewed with a total of 1311 patient-days, and 882 prescription episodes. 359 MEs were detected; with prevalence of 40 per 100 orders. Common prescribing errors were omission errors 154 (42.89%), 101 (28.13%) wrong combination, 48 (13.37%) wrong abbreviation, 30 (8.36%) wrong dose, wrong frequency 18 (5.01%) and wrong indications 8 (2.23%). The present study shows that medication errors are common in medical ICU of Tikur Anbessa Specialized Hospital. These results suggest future targets of prevention strategies to reduce the rate of medication error.

e-Health promises and challenges: some ethical considerations.

PubMed

Kluge, Eike-Henner W

2011-01-01

eHealth is a cost-effective and efficient way of providing health care to patients who would otherwise be excluded or underserviced. However, eHealth also presents a series of ethical and legal challenges which, if not met before its implementation, can undermine its success. Among other things, privacy, consent and liability are implicated, as are changes in the health care professional-patient relationship and in the role of health informatics professionals. Legacy systems and interoperability present further challenges, and outsourcing may pose special problems. This paper highlights some of these issues and outlines their implications.

Post-traumatic stress reactions before the advent of post-traumatic stress disorder: potential effects on the lives and legacies of Alexander the Great, Captain James Cook, Emily Dickinson, and Florence Nightingale.

PubMed

Mackowiak, Philip A; Batten, Sonja V

2008-12-01

Evidence is presented that Alexander the Great, Captain James Cook, Emily Dickinson, and Florence Nightingale each developed symptoms consistent with post-traumatic stress disorder in the aftermath of repeated potentially traumatizing events of differing character. Their case histories also varied with respect to background, premorbid personality style, risk factors, clinical presentation, and course of the illness, illustrating the pleomorphic character of the disorder, as well as the special problems in diagnosing it in historical figures.

Analytical solutions to time-fractional partial differential equations in a two-dimensional multilayer annulus

NASA Astrophysics Data System (ADS)

Chen, Shanzhen; Jiang, Xiaoyun

2012-08-01

In this paper, analytical solutions to time-fractional partial differential equations in a multi-layer annulus are presented. The final solutions are obtained in terms of Mittag-Leffler function by using the finite integral transform technique and Laplace transform technique. In addition, the classical diffusion equation (α=1), the Helmholtz equation (α→0) and the wave equation (α=2) are discussed as special cases. Finally, an illustrative example problem for the three-layer semi-circular annular region is solved and numerical results are presented graphically for various kind of order of fractional derivative.

Programming Probabilistic Structural Analysis for Parallel Processing Computer

NASA Technical Reports Server (NTRS)

Sues, Robert H.; Chen, Heh-Chyun; Twisdale, Lawrence A.; Chamis, Christos C.; Murthy, Pappu L. N.

1991-01-01

The ultimate goal of this research program is to make Probabilistic Structural Analysis (PSA) computationally efficient and hence practical for the design environment by achieving large scale parallelism. The paper identifies the multiple levels of parallelism in PSA, identifies methodologies for exploiting this parallelism, describes the development of a parallel stochastic finite element code, and presents results of two example applications. It is demonstrated that speeds within five percent of those theoretically possible can be achieved. A special-purpose numerical technique, the stochastic preconditioned conjugate gradient method, is also presented and demonstrated to be extremely efficient for certain classes of PSA problems.

Progress in Suppressing Scattered Light into the Optical Beam Path of the NAO Rozhen 2m Telescope

NASA Astrophysics Data System (ADS)

Ovcharov, E. P.; Petrov, N.; Markov, H.; Bonev, T.; Donchev, Z.

2010-09-01

In this poster paper we present a summary of the published analysis of the spatial dependence of the magnitudes derived from images obtained in the RC focal plane of the 2m RCC NAO Rozhen telescope. An alert for the possible reason was the unusually curved flat-field images taken as a part of the standard CCD calibration procedure. The reasons for the problem are described and a solution is presented, which consists modification of the mirror baffles and mounting of special diaphragm at the entrance of the filter wheel.

The Library of the Institute of Theoretical Astronomy of the R.A.S. (1924-1994). History, Present State, Perspectives for Future

NASA Astrophysics Data System (ADS)

Lapteva, M. V.

Building up a specialized library collection of the Library of the Institute of Theoretical Astronomy of the Russian Academy of Sciences beginning with foundation of the Library (1924) up to the present time have been considered in their historical perspective. The main acquisition sources, stock figures, various parameters of the collection composi- tion, including information on rare foreign editions are also dealt with. The data on the existing retrieval systems and the perspectives of developing computerized problem directed reference bibliographic complexes are also considered.

Trends in Advertising Typography.

ERIC Educational Resources Information Center

Moriarty, Sandra Ernst

1982-01-01

Reviews advertising typography in general interest, special interest, and trade magazines and concludes that special interest magazine ads are making the most effort to be fashionable, but also have the greatest chance of having functional problems. (FL)

Operant Conditioning: A Tool for Special Physical Educators in the 1980s.

ERIC Educational Resources Information Center

Dunn, John M.; French, Ron

1982-01-01

The usefulness of operant conditioning for the special physical educator in managing behavior problems is pointed out, and steps to follow in applying operant conditioning techniques are outlined. (SB)

Fecal impaction

MedlinePlus

... problems Examine you carefully. Recommend changes in your diet, how to use laxatives and stool softeners, special exercises, lifestyle changes, and other special techniques to retrain your bowel. Follow you closely to make sure the program works for you.

Clouds and ocean-atmosphere interactions. Final report, September 15, 1992--September 14, 1995

DOE Office of Scientific and Technical Information (OSTI.GOV)

Randall, D.A.; Jensen, T.G.

1995-10-01

Predictions of global change based on climate models are influencing both national and international policies on energy and the environment. Existing climate models show some skill in simulating the present climate, but suffer from many widely acknowledged deficiencies. Among the most serious problems is the need to apply ``flux corrections`` to prevent the models from drifting away from the observed climate in control runs that do not include external perturbing influences such as increased carbon dioxide (CO{sub 2}) concentrations. The flux corrections required to prevent climate drift are typically comparable in magnitude to the observed fluxes themselves. Although there canmore » be many contributing reasons for the climate drift problem, clouds and their effects on the surface energy budget are among the prime suspects. The authors have conducted a research program designed to investigate global air-sea interaction as it relates to the global warming problem, with special emphasis on the role of clouds. Their research includes model development efforts; application of models to simulation of present and future climates, with comparison to observations wherever possible; and vigorous participation in ongoing efforts to intercompare the present generation of atmospheric general circulation models.« less

Efficient Algorithms for Estimating the Absorption Spectrum within Linear Response TDDFT

DOE Office of Scientific and Technical Information (OSTI.GOV)

Brabec, Jiri; Lin, Lin; Shao, Meiyue

We present a special symmetric Lanczos algorithm and a kernel polynomial method (KPM) for approximating the absorption spectrum of molecules within the linear response time-dependent density functional theory (TDDFT) framework in the product form. In contrast to existing algorithms, the new algorithms are based on reformulating the original non-Hermitian eigenvalue problem as a product eigenvalue problem and the observation that the product eigenvalue problem is self-adjoint with respect to an appropriately chosen inner product. This allows a simple symmetric Lanczos algorithm to be used to compute the desired absorption spectrum. The use of a symmetric Lanczos algorithm only requires halfmore » of the memory compared with the nonsymmetric variant of the Lanczos algorithm. The symmetric Lanczos algorithm is also numerically more stable than the nonsymmetric version. The KPM algorithm is also presented as a low-memory alternative to the Lanczos approach, but the algorithm may require more matrix-vector multiplications in practice. We discuss the pros and cons of these methods in terms of their accuracy as well as their computational and storage cost. Applications to a set of small and medium-sized molecules are also presented.« less

Efficient Algorithms for Estimating the Absorption Spectrum within Linear Response TDDFT

DOE PAGES

Brabec, Jiri; Lin, Lin; Shao, Meiyue; ...

2015-10-06

We present a special symmetric Lanczos algorithm and a kernel polynomial method (KPM) for approximating the absorption spectrum of molecules within the linear response time-dependent density functional theory (TDDFT) framework in the product form. In contrast to existing algorithms, the new algorithms are based on reformulating the original non-Hermitian eigenvalue problem as a product eigenvalue problem and the observation that the product eigenvalue problem is self-adjoint with respect to an appropriately chosen inner product. This allows a simple symmetric Lanczos algorithm to be used to compute the desired absorption spectrum. The use of a symmetric Lanczos algorithm only requires halfmore » of the memory compared with the nonsymmetric variant of the Lanczos algorithm. The symmetric Lanczos algorithm is also numerically more stable than the nonsymmetric version. The KPM algorithm is also presented as a low-memory alternative to the Lanczos approach, but the algorithm may require more matrix-vector multiplications in practice. We discuss the pros and cons of these methods in terms of their accuracy as well as their computational and storage cost. Applications to a set of small and medium-sized molecules are also presented.« less

Effects of teacher assistance teams on special education referrals in elementary schools.

PubMed

Short, R J; Talley, R C

1996-12-01

School-based problem-solving teams recently have received much attention as a possible support for children who are at risk for school failure and for over-referral to special education. However, no controlled studies of the effects of such teams on numbers of referrals for special education or for proportion of appropriate referrals for special education have been conducted. The lack of adequate research concerning school-based problem-solving teams, coupled with the widespread promotion of their use, suggests that further study of such teams is important. In this study, we investigated the effect of one team model, Teacher Assistance Teams, on special education referrals in elementary schools of a large urban district. To address limitations of previous research, schools with such teams were compared with those without across several years of implementation. Analysis yielded a significant decrease in referrals in both groups of schools but no significant differences between groups. These findings may be explained by the context in which both groups of schools functioned.

[The problems of professional competence in the complementary professional forensic medical expertise programs of advanced training and professional requalification].

PubMed

Shadymov, A B; Fominykh, S A; Dik, V P

This article reports the results of the analysis of the new tendencies and normatives of the working legislation in the field of additional professional education in the speciality of «forensic medical expertise» and the application of the competency-based approach to the training of specialists in the framework of professional requalification and advanced training programs. Special attention is given to the problems of organization of the educational process and the elaboration of additional training programs based on the competency approach to the training of specialists at the Department of Forensic Medicine and Law with the professor V.N. Kryukov Course of Advanced Professional Training and Professional Requalification of Specialists at the state budgetary educational Institution of higher professional education «Altai State Medical University», Russian Ministry of Health. The study revealed the problems pertaining to the development of professional competencies in the framework of educational programs for the professional requalification and advanced training in the speciality «forensic medical expertise». The authors propose the legally substantiated approaches to the solution of these problems.

Financial and employment problems in families of children with special health care needs: implications for research and practice.

PubMed

Looman, Wendy S; O'Conner-Von, Susan K; Ferski, Gabriela J; Hildenbrand, Debra A

2009-01-01

The purpose of this study was to identify factors related to financial burden among families of children with special needs and to identify specific provider-level activities associated with decreased risk for such burden. Data for secondary analysis are from the National Survey of Children with Special Health Care Needs (CSHCN). Logistic regression analysis of state-level data was conducted to identify significant predictors of financial and employment problems among families of children with SHCN in Minnesota. Children with more severe conditions and whose family members provided health care at home were more likely to have parents report financial and employment problems due to the child's condition. On the other hand, families whose health care providers communicated well with other service providers and who helped them feel like partners in their child's care were significantly less likely to report financial and employment problems. Pediatric nurses and nurse practitioners can use these findings as they work with families for optimal family outcomes. Advocacy and policy implications at state and federal levels also are discussed.

A distance learning model in a physical therapy curriculum.

PubMed

English, T; Harrison, A L; Hart, A L

1998-01-01

In response to the rural health initiative established in 1991, the University of Kentucky has developed an innovative distance learning program of physical therapy instruction that combines classroom lecture and discussion via compressed video technology with laboratory experiences. The authors describe the process of planning, implementing, and evaluating a specific distance learning course in pathomechanics for the professional-level master's-degree physical therapy students at the University of Kentucky. This presentation may serve as a model for teaching distance learning. Descriptions of optimal approaches to preclass preparation, scheduling, course delivery, use of audiovisual aids, use of handout material, and video production are given. Special activities that may enhance or deter the achievement of the learning objectives are outlined, and a problem-solving approach to common problems encountered is presented. An approach to evaluating and comparing course outcomes for the distance learnere is presented. For this particular course, there was no statistically significant difference in the outcome measures utilized to compare the distance learners with the on-site learners.

Training Tactical-Level Planning Skills: An Investigation of Problem-Centered and Direct Instruction Approaches

DTIC Science & Technology

2011-06-01

learned how to shape their mental models in response to changes in the situation. This increased confidence in their abilities may have led to the...specially- designed software. It is clear that the students were more engaged with the tasks as presented by the software which may have led them...although in theory the student should influence how and when these activities happen: 1. Overview of the research project, the project goals, the

Software safety

NASA Technical Reports Server (NTRS)

Leveson, Nancy

1987-01-01

Software safety and its relationship to other qualities are discussed. It is shown that standard reliability and fault tolerance techniques will not solve the safety problem for the present. A new attitude requires: looking at what you do NOT want software to do along with what you want it to do; and assuming things will go wrong. New procedures and changes to entire software development process are necessary: special software safety analysis techniques are needed; and design techniques, especially eliminating complexity, can be very helpful.

International Federation of Library Associations Annual Conference. Papers of the Special Libraries Division: Geographical and Map, Science and Technology and Social Science Libraries Sections (47th, Leipzig, East Germany, August 17-22, 1981).

ERIC Educational Resources Information Center

Sprudzs, Adolf; And Others

This set of eight papers includes papers presented by participants from the United States, France, East Germany, the United Kingdom, West Germany, and the USSR: "Problems with Sources of Information in International Law and Relations: The Case of the World-Wide Treaty Jungle," by Adolf Sprudzs; "French Map Libraries and National and…

[X-ray diagnostic of partial intestinal obstruction in small intestine diseases: a glance on the problem of radiologist-gastroenterologist].

PubMed

Levchenko, S V; Kotovshchikova, A A; Orlova, N V

2013-01-01

The article is devoted to special features of X-ray examining of patients suffering from acute abdomen pain and X-ray paradigma of some intestine diseases as a cause of partial bowel obstruction. Own clinical data are presented. Long-term experience of our X-ray department is summarized. The possibilities of X-ray examining of abdomen with and without contrast in patients with partial bowel obstruction are described.

Identification of the Radiative and Nonradiative Parts of a Wave Field

NASA Astrophysics Data System (ADS)

Hoenders, B. J.; Ferwerda, H. A.

2001-08-01

We present a method for decomposing a wave field, described by a second-order ordinary differential equation, into a radiative component and a nonradiative one, using a biorthonormal system related to the problem under consideration. We show that it is possible to select a special system such that the wave field is purely radiating. We discuss the differences and analogies with approaches which, unlike our approach, start from the corresponding sources of the field.

Cooling of Airplane Engines at Low Air Speeds

NASA Technical Reports Server (NTRS)

Theodorsen, Theodore; Brevoort, M J; Stickle, George W

1937-01-01

Report presents the results of a comprehensive experimental study carried out at full scale in the NACA 20-foot wind tunnel, the general purpose of which is to furnish information in regard to the functioning of the power plant and propeller unit under different conditions. This report deals particularly with the problem of the cooling of an airplane engines on the ground. The influence of different nose forms, skirts, flaps, propellers, spinners, and special blowers has been investigated.