WorldWideScience

Sample records for force xxi analyses

  1. Leadership in Force XXI: Is the Army's Current Leadership Model and Leader Development Doctrine Properly Addressing the Challenges Brought About by the Transition to Force XXI

    National Research Council Canada - National Science Library

    Johnson, Carl

    1999-01-01

    .... The purpose of this research paper is to answer the question, Is the Army's current leadership model and leader development doctrine properly addressing the challenges brought about by the transition to Force XXI...

  2. Leadership in Force XXI: Is the Army’s Current Leadership Model and Leader Development Doctrine Properly Addressing the Challenges Brought About by the Transition to Force XXI

    Science.gov (United States)

    1999-04-01

    data, psychological and physical stamina, hands on skill at the computer, and knowledge of Force XXI implementation.5 All of these skills can be self... Coursebook , AY 1999. 4 Authors personal experience with modifications to IOAC Program of Instruction (POI) as a Tactics Instructor and Team Chief during...to the Brigade Commander, but he understood that his Company Commander wasn’t in the best spot to physically see what was happening so he surmised

  3. Religious Support in the Division XXI Heavy Brigade

    National Research Council Canada - National Science Library

    Keller, Eric

    2001-01-01

    Force XXI technology changes the war-fighting doctrine of the US Army. The new digital technology combined with changes in the design of the force structure created a new mechanized infantry or armor division...

  4. Analyses of Current And Wave Forces on Velocity Caps

    DEFF Research Database (Denmark)

    Christensen, Erik Damgaard; Buhrkall, Jeppe; Eskesen, Mark C. D.

    2015-01-01

    Velocity caps are often used in connection with for instance offshore intake sea water for the use of for cooling water for power plants or as a source for desalinization plants. The intakes can also be used for river intakes. The velocity cap is placed on top of a vertical pipe. The vertical pipe......) this paper investigates the current and wave forces on the velocity cap and the vertical cylinder. The Morison’s force model was used in the analyses of the extracted force time series in from the CFD model. Further the distribution of the inlet velocities around the velocity cap was also analyzed in detail...

  5. Forced vibration tests and simulation analyses of a nuclear reactor building. Part 2: simulation analyses

    International Nuclear Information System (INIS)

    Kuno, M.; Nakagawa, S.; Momma, T.; Naito, Y.; Niwa, M.; Motohashi, S.

    1995-01-01

    Forced vibration tests of a BWR-type reactor building. Hamaoka Unit 4, were performed. Valuable data on the dynamic characteristics of the soil-structure interaction system were obtained through the tests. Simulation analyses of the fundamental dynamic characteristics of the soil-structure system were conducted, using a basic lumped mass soil-structure model (lattice model), and strong correlation with the measured data was obtained. Furthermore, detailed simulation models were employed to investigate the effects of simultaneously induced vertical response and response of the adjacent turbine building on the lateral response of the reactor building. (author). 4 refs., 11 figs

  6. Armor Battalion Force Structure in Force XXI

    National Research Council Canada - National Science Library

    Briggs, David

    1998-01-01

    ... effectiveness of the armor unit in a cost effective manner. The initial stages of problem definition led to the identification of an initial effective need of developing a rapidly deployable system capable of effective armored combat...

  7. 47,XXY Klinefelter syndrome

    DEFF Research Database (Denmark)

    Aksglaede, Lise; Link, Katarina; Giwercman, Aleksander

    2013-01-01

    47,XXY (Klinefelter syndrome) is the most frequent sex chromosomal disorder and affects approximately one in 660 newborn boys. The syndrome is characterized by varying degrees of cognitive, social, behavioral, and learning difficulties and in adulthood additionally primary testicular failure...... with small testes, hypergonadotropic hypogonadism, tall stature, and eunuchoid body proportions. The phenotype is variable ranging from "near-normal" to a significantly affected individual. In addition, newborns with Klinefelter syndrome generally present with a normal male phenotype and the only consistent...... clinical finding in KS is small testes, that are most often not identified until after puberty. Decreased awareness of this syndrome among health professionals and a general perception that all patients with 47,XXY exhibit the classic textbook phenotype results in a highly under-diagnosed condition with up...

  8. Grasping an augmented object to analyse manipulative force control.

    Science.gov (United States)

    Kawai, Satoru; Summers, Valerie A; Mackenzie, Christine L; Ivens, Chris J; Yamamoto, Takashi

    2002-12-15

    Augmented reality allows changes to be made to the visual perception of object size even while the tangible components remain completely unaltered. It was, therefore, utilized in a study whose results are being reported here to provide the proper environment required to thoroughly observe the exact effect that visual change to object size had on programming fingertip forces when objects were lifted with a precision grip. Twenty-one participants performed repeated lifts of an identical grip apparatus to a height of 20 mm, maintained each lift for 8 seconds, and then replaced the grip apparatus on the table. While all other factors of the grip apparatus remained unchanged, visual appearance was altered graphically in a 3-D augmented environment. The grip apparatus measured grip and load forces independently. Grip and load forces demonstrated significant rates of increase as well as peak forces as the size of graphical images increased; an aspect that occurred in spite of the fact that extraneous haptic information remained constant throughout the trials. By indicating a human tendency to rely - even unconsciously - on visual input to program the forces in the initial lifting phase, this finding provides further confirmation of previous research findings obtained in the physical environment; including the possibility of extraneous haptic effects (Gordon et al. 1991a, Mon-Williams and Murray 2000, Kawai et al. 2000). The present results also suggest that existing knowledge concerning human manipulation tasks in the physical world may be applied to an augmented environment where the physical objects are enhanced by computer generated visual components.

  9. Gerencia del Siglo XXI

    Directory of Open Access Journals (Sweden)

    John Orlando Crissien Castillo

    2013-07-01

    Full Text Available El cambio es más rápido que nunca, la tecnología genera nuevos modelos gerenciales, los mercados se abren, el paradigma de la competitividad y la productividad. Los gerentes modernos estamos expuestos a muchas presiones generadoras de estrés; hecho que, según la OMS (Organización Mundial de la  alud, está entre las tres enfermedades que cobran más muertes en el mundo. EL campo de juego gerencial ha cambiado: por ende la gerencia del siglo XXI requiere un perfil de administrador-gerente diferente. Este nuevo gerente se debe tornar líder y administrador. Las cosas se administran, la gente se lidera, se gerencia. Por esto el gerente líder del siglo XXI se debe formar, capacitar, entrenar en aquellas habilidades-competencias requeridas por este nuevo entorno. Por tal razón debe generar dos sets de competencias: las de gerente integral y el desarrollo de la capacidad directiva.

  10. Some failure analyses of South African Air Force aircraft engine and airframe components

    CSIR Research Space (South Africa)

    Benson, JM

    1998-06-01

    Full Text Available Failure analyses of various engine and airframe components from South African Air Force aircraft have been performed by the Division of Materials Science and Technology over several years and these have ranged from crash investigations to minor...

  11. Acute myeloid leukemia in a patient with constitutional 47,XXY karyotype

    Directory of Open Access Journals (Sweden)

    Marla M. Jalbut

    2015-01-01

    Full Text Available Klinefelter syndrome (KS, a 47,XXY chromosomal abnormality, has been shown to be associated with a number of malignancies, but has not been linked to acute leukemias to date. We present a case of a 54-year-old male diagnosed with acute myeloid leukemia (AML with monocytic differentiation, whose cytogenetic and subsequent FISH analyses revealed a constitutional 47,XXY karyotype. We also review and discuss relevant prior literature.

  12. Acute myeloid leukemia in a patient with constitutional 47,XXY karyotype.

    Science.gov (United States)

    Jalbut, Marla M; Sohani, Aliyah R; Dal Cin, Paola; Hasserjian, Robert P; Moran, Jenna A; Brunner, Andrew M; Fathi, Amir T

    2015-01-01

    Klinefelter syndrome (KS), a 47,XXY chromosomal abnormality, has been shown to be associated with a number of malignancies, but has not been linked to acute leukemias to date. We present a case of a 54-year-old male diagnosed with acute myeloid leukemia (AML) with monocytic differentiation, whose cytogenetic and subsequent FISH analyses revealed a constitutional 47,XXY karyotype. We also review and discuss relevant prior literature.

  13. Pateetiline kukkumine XXI sajandisse / Mari Sobolev

    Index Scriptorium Estoniae

    Sobolev, Mari, 1968-

    2000-01-01

    Tartu Kunstimajas ja monumentaalgaleriis avatud Reet Varblase kureeritud näitusest "Eneseksjäämine. Väikesed rollimängud XXI sajandiks". Pikemalt Terje Ojaveri performance'ist, Kai Kaljo videost "Pateetika"

  14. Multistable Microactuators Functioning on the Basis of Electromagnetic Lorentz Force: Nonlinear Structural and Electrothermal Analyses

    International Nuclear Information System (INIS)

    Han, Jeong Sam

    2010-01-01

    In this paper, the design and nonlinear simulation of a multistable electromagnetic microactuator, which provides four stable equilibrium positions within its operating range, have been discussed. Quadstable actuator motion has been made possible by using both X- and Y-directional bistable structures with snapping curved beams. Two pairs of the curved beams are attached to an inner frame in both X- and Y-directions to realize independent bistable behavior in each direction. For the actuation of the actuator at the micrometer scale, an electromagnetic actuation method in which Lorentz force is taken into consideration was used. By using this method, micrometer-stroke quadstability in a plane parallel to a substrate was possible. The feasibility of designing an actuator that can realize quadstable motion by using the electromagnetic actuation method has been thoroughly clarified by performing nonlinear static and dynamic analyses and electrothermal coupled-field analysis of the multistable microactuator

  15. Cuba y el Socialismo del siglo XXI

    OpenAIRE

    Iván Porfirio Santos Víctores; Miguel Ángel Hernández García

    2017-01-01

    El presente artículo trata acerca de cómo, después de la desaparición  del socialismo en la URSS y en Europa del Este, el llamado Socialismo del siglo XXI representa el desafío actual de reinventar o renovar el socialismo; tomando en cuenta las experiencias de los socialismos que se vivieron, aunque partiendo siempre de las condiciones y la realidad concreta y particular de cada país. Cuando se habla de Socialismo del Siglo XXI no se trata sobre algo definitivamente acabado, conceptualizado, ...

  16. Air Force Officer Qualifying Test Form T: Initial Item-, Test-, Factor-, and Composite-Level Analyses

    Science.gov (United States)

    2016-12-01

    used to qualify applicants for ROTC and OTS officer commissioning programs. The Pilot, Combat Systems Officer (CSO), and Air Battle Manager ( ABM ...AIR FORCE RESEARCH LABORATORY 711 HUMAN PERFORMANCE WING, AIRMAN SYSTEMS DIRECTORATE, WRIGHT-PATTERSON AIR FORCE BASE, OH 45433 AIR FORCE MATERIEL...Warfighter Interface Division Airman Systems Directorate This report is published in the interest of scientific and technical information exchange, and

  17. Three-dimensional analyses of human bite-force magnitude and moment.

    Science.gov (United States)

    van Eijden, T M

    1991-01-01

    The effect of the three-dimensional orientation of occlusal force on maximal bite-force magnitude was examined in seven human subjects at three different unilateral anteroposterior bite positions (canine, second premolar and second molar). At each position, bite-force magnitude was registered in 17 precisely defined directions using a three-component force transducer and a feedback method. In addition, to assess the efficiency of transfer of muscle to bite force, for bites produced in the sagittal plane, moment-arm length was determined and the produced bite-force moment calculated. The results showed that the largest possible bite force was not always produced in a direction perpendicular to the occlusal plane. Generally, maximal bite force in medial and posterior directions was larger than that in, respectively, corresponding lateral and anterior directions. In each direction the produced force was larger at the posterior bite point than at the anterior bite point. The combined moment produced by the jaw muscles was largest for vertical bites, smallest for posteriorly directed bites and intermediate for anteriorly directed bites. In the case of vertically and anteriorly directed bites the produced moment did not vary significantly with the bite position. Hence, for these bite positions the jaw closing moment of the muscles must have kept constant. In the case of posteriorly directed bites the produced moment decreased when bite position changed from the anterior to the posterior side of the dentition. This indicated that jaw muscle activity had declined.

  18. Two Boys with 47, XXY and Autism

    Science.gov (United States)

    Merhar, S. L.; Manning-Courtney, P.

    2007-01-01

    Two children with autism and Klinefelter syndrome (KS) (47, XXY) are presented. Both qualify for the diagnosis of autism based on DSM-IV with severely delayed and disordered language, difficulties with social interaction, and a restricted range of interests and activities. Both also have abnormal EEGs, and one patient has had what appear to be…

  19. Alemania siglo XXI: un balance

    Directory of Open Access Journals (Sweden)

    Martha Lucía Quiroga Riviere

    2009-11-01

    Full Text Available Veinte años han pasado desde que se dieron los sucesos en la República Democrática Alemana (RDA que llevarían, en noviembre de 1989, a la caída del muro de Berlín y a la reunificación de Alemania el 3 de octubre de 1990. El proceso de unificación alemana dio pie en sus comienzos a una optimista visión que, sin embargo, con el paso del tiempo ha cambiado de tal forma que hoy se habla del ‘messogiorno alemán’ para designar a la zona oriental comparándola con la zona deprimida del sur de Italia. Pero la Alemania unificada en el contexto internacional supuso también cambios para la zona occidental que, entre otros, se han traducido en la crisis del sector industrial tradicional y en el desempleo estructural. Así, a la difícil constelación de la situación interna de la Alemania reunificada, se ha adicionado la realidad internacional con una decreciente producción industrial como fenómeno global en todas las viejas naciones industriales y con un proceso de desregularización que significó en Alemania oriental la ‘privatización de toda la sociedad’. En Alemania se han llevado y se están llevando cambios sociales profundos, que no tienen comparación con ningún otro país de las potencias occidentales ni, en el caso de la ex RDA con ningún país del este. Evaluar el proceso de unificación alemana, primera potencia europea y motor del proceso de integración en ese continente, se hace imperante. El presente artículo intenta hacer un diagnóstico parcial de la nueva realidad en la Alemania unificadaa comienzos del siglo XXI.

  20. Analysing a Relationship Between Wheel Wear and Cutting Forces During Diamond Grinding

    Directory of Open Access Journals (Sweden)

    M. A. Shavva

    2014-01-01

    Full Text Available In diamond grinding cutting forces affect the quality of the machined surface. We can estimate a wear rate of the diamond wheel by the magnitude of the forces and promptly resort to the restoration of its cutting properties. To solve this problem it is necessary to define a relationship between grinding wheel wear and cutting forces. There was no this dependence found in the sources of literature.The forces acting on a single worn diamond grain are considered to find the relationship between wheel wear and cutting forces. The main forces acting on the diamond grain are such as a reaction force of machining material, a frictional force over a worn place of the grain, and a total pressure on the contact surface of the grain and machining material. According to calculation results, in grinding the cutting forces are proportional to the hardness of machining material, and depend on the grain wear, as well as on the process operation conditions.The paper presents a technique for calculating the number of cutting (active grains per unit surface of diamond wheel to determine a total cutting force in grinding. The number of cutting grains depends on the properties of diamond wheel and on the operation conditions of grinding process.During grinding a total cutting force is calculated through the single grain cutting force, the number of cutting grains per unit surface of the grinding wheel and the contact area between the wheel and the work piece. Theoretical calculation of the forces is based on the condition that protrusions of all cutting grains are identical and all grains have a maximum wear, i.e. maximum worn place of grain.Calculations based on proposed theoretical formulas are compared with the calculations from the empirical formulas given in the literature. Varying the operation conditions of grinding makes the comparison. Convergence of results in the range of 5-20% is regarded as acceptable.On the BMSTU base flat diamond grinding of tungsten

  1. Analysing the Possible Ways for Short-Term Forcing Gas Turbine Engines in Auxiliary Power Unit

    Directory of Open Access Journals (Sweden)

    N. I. Trotskii

    2016-01-01

    Full Text Available Using a gas turbine energy unit as an example, the article discusses possible ways for forcing the short-term gas turbine engines (GTE. The introduction explains the need for forcing the air transport and marine GTE in specific driving conditions and offers the main methods. Then it analyzes the three main short-term forcing methods according to GTE power, namely: precompressor water injection, a short-term rise in temperature after the combustion chamber, and feeding an additional compressed air into combustion chamber from the reserve cylinders.The analysis of the water injection method to force a GTE presents the main provisions and calculation results of the cycle, as a function of engine power on the amount of water injected into compressor inlet. It is shown that with water injection into compressor inlet in an amount of 1% of the total airflow there is a 17% power increase in the compressor. It also lists the main implementation problems of this method and makes a comparison with the results of other studies on the water injection into compressor.Next, the article concerns the GTE short-term forcing method through the pre-turbine short-term increase in the gas temperature. The article presents the calculation results of the cycle as a function of the power and the fuel-flow rate on the gas temperature at the turbine inlet. It is shown that with increasing temperature by 80 degrees the engine power increases by 11.2% and requires 11% more fuel. In the analysis of this method arises an issue of thermal barrier coating on the blade surface. The article discusses the most common types of coatings and their main shortcomings. It lists the main challenges and some ways of their solving when using this method to implement the short-term forcing.The last method under consideration is GTE short-term forcing by feeding the compressed air into the combustion chamber from the additional reserve cylinders. It should be noted that this method is

  2. Liberalnõi imperializm, ili Missija Rossii v XXI veke

    Index Scriptorium Estoniae

    2003-01-01

    Venemaa valmistub parlamendi- ja presidendivalimisteks. Tuntud poliitik Anatoli Tshubais esines hiljuti Peterburis, põhiteemaks Venemaa ajalooline missioon XXI sajandil, poliitiline know-how - liberaalne imperialism

  3. Machinability evaluation of titanium alloys (Part 2)--Analyses of cutting force and spindle motor current.

    Science.gov (United States)

    Kikuchi, Masafumi; Okuno, Osamu

    2004-12-01

    To establish a method of determining the machinability of dental materials for CAD/CAM systems, the machinability of titanium, two titanium alloys (Ti-6Al-4V and Ti-6Al-7Nb), and free-cutting brass was evaluated through cutting force and spindle motor current. The metals were slotted using a milling machine and square end mills at four cutting conditions. Both the static and dynamic components of the cutting force represented well the machinability of the metals tested: the machinability of Ti-6Al-4V and Ti-6Al-7Nb was worse than that of titanium, while that of free-cutting brass was better. On the other hand, the results indicated that the spindle motor current was not sensitive enough to detect the material difference among the titanium and its alloys.

  4. Dynamic analyses of electromagnetic force on ferritic board for AMTEX on JFT-2M

    Energy Technology Data Exchange (ETDEWEB)

    Urata, K. E-mail: uratak@fusion.naka.jaeri.go.jp; Suzuki, Y.; Kudough, F.; Kimura, H.; Miura, Y.; Yamamoto, M

    2001-10-01

    Covering the inside wall of the vacuum vessel with the ferritic boards (FBs) is planned in the third stage of the Advanced Material Tokamak Experiment (AMTEX) on JFT-2M. The total magnetic forces induced on FBs were calculated by the three-dimensional dynamic electromagnetic field analysis code, EMSolution, with solid magnetic elements to consider the coupled effects of eddy current and magnetization, and the skin effect of eddy current. The structural integrity was evaluated on the bolts fixing the FBs to the vacuum vessel.

  5. Dynamic analyses of electromagnetic force on ferritic board for AMTEX on JFT-2M

    International Nuclear Information System (INIS)

    Urata, K.; Suzuki, Y.; Kudough, F.; Kimura, H.; Miura, Y.; Yamamoto, M.

    2001-01-01

    Covering the inside wall of the vacuum vessel with the ferritic boards (FBs) is planned in the third stage of the Advanced Material Tokamak Experiment (AMTEX) on JFT-2M. The total magnetic forces induced on FBs were calculated by the three-dimensional dynamic electromagnetic field analysis code, EMSolution, with solid magnetic elements to consider the coupled effects of eddy current and magnetization, and the skin effect of eddy current. The structural integrity was evaluated on the bolts fixing the FBs to the vacuum vessel

  6. Ground reaction force analysed with correlation coefficient matrix in group of stroke patients.

    Science.gov (United States)

    Szczerbik, Ewa; Krawczyk, Maciej; Syczewska, Małgorzata

    2014-01-01

    Stroke is the third cause of death in contemporary society and causes many disorders. Clinical scales, ground reaction force (GRF) and objective gait analysis are used for assessment of patient's rehabilitation progress during treatment. The goal of this paper is to assess whether signal correlation coefficient matrix applied to GRF can be used for evaluation of the status of post-stroke patients. A group of patients underwent clinical assessment and instrumented gait analysis simultaneously three times. The difference between components of patient's GRF (vertical, fore/aft, med/lat) and normal ones (reference GRF of healthy subjects) was calculated as correlation coefficient. Patients were divided into two groups ("worse" and "better") based on the clinical functional scale tests done at the beginning of rehabilitation process. The results obtained by these two groups were compared using statistical analysis. An increase of median value of correlation coefficient is observed in all components of GRF, but only in non-paretic leg. Analysis of GRF signal can be helpful in assessment of post-stroke patients during rehabilitation. Improvement in stroke patients was observed in non-paretic leg of the "worse" group. GRF analysis should not be the only tool for objective validation of patient's improvement, but could be used as additional source of information.

  7. Cuba y el Socialismo del siglo XXI

    Directory of Open Access Journals (Sweden)

    Iván Porfirio Santos Víctores

    2017-12-01

    Full Text Available El presente artículo trata acerca de cómo, después de la desaparición  del socialismo en la URSS y en Europa del Este, el llamado Socialismo del siglo XXI representa el desafío actual de reinventar o renovar el socialismo; tomando en cuenta las experiencias de los socialismos que se vivieron, aunque partiendo siempre de las condiciones y la realidad concreta y particular de cada país. Cuando se habla de Socialismo del Siglo XXI no se trata sobre algo definitivamente acabado, conceptualizado, sino precisamente sobre un constructo en desarrollo, el cual es la expresión actual de un abordaje renovado de la construcción del socialismo. Cuba, que inició su proceso revolucionario a mediados del siglo pasado, constituye, con su proyecto de actualización del socialismo, un ejemplo paradigmático donde, con sus características y particularidades históricas, encontramos lo que podríamos llamar una transición del socialismo clásico alternativo sui generis del siglo XX al  socialismo del siglo XXI, con la adopción de políticas públicas que estimulen la sostenibilidad del desarrollo económico y social del país mediante la consolidación de un socialismo próspero y sostenible, comprometido con los valores fundacionales  históricos del proyecto social cubano.

  8. Medical Business Ethics in the XXI century

    International Nuclear Information System (INIS)

    Moya Pueyo, V.

    2009-01-01

    Since ancient times the medical professional practice included moral rules in order to assure a correct approach of capital problems. These rules evolve and are now gathered in the Deontological Codes watching the Constitution and other higher Laws. There has been an increase of interest for none strictly clinical matter since the appearance of the term Bioethics. The book Deontologia medica en el siglo XXI tackles problems of first interest in the present times, thru statistics and analysis, trying to help the medical doctors that have to take ethic decisions. (Author)

  9. Obstetricia integral siglo XXI. Tomo I

    OpenAIRE

    Bracho Ch., Alcides C.; Bautista Charry, Alejandro; Castro Sanguino, Alejandro; Navarro Milanés, Alfonso; Lomanto Moran, Antonio; Ruiz Parra, Ariel Iván; Parada Baños, Arturo José; Villacis Vallejos, Carlos Eduardo; Saavedra Trujillo, Carlos Humberto; Arteaga Díaz, Clara Eugenia; Cortés Díaz, Daniel Otálvaro; Vargas Fiesco, Diana Carolina; Peña, Diana; Becerra Cornejo, Diego Alejandro; Müller, Edith Angel

    2009-01-01

    El libro Obstetricia integral siglo XXI. Facultad de Medicina, Universidad Nacional de Colombia, se trata de una revisión, actual y profunda, de los principales tópicos en el área de la obstetricia, realizada por un grupo interdisciplinario de autores comprometidos con el mejoramiento de la calidad en el cuidado de la salud de la mujer gestante. Se ha procurado un balance entre los aspectos básicos de fisiopatología y las guías de atención clínica soportadas en evidencias científicas, con el ...

  10. Numerical analyses of magnetic field and force in toroidal superconducting magnetic energy storage using unit coils (abstract)

    International Nuclear Information System (INIS)

    Kanamaru, Y.; Nakayama, T.; Amemiya, Y.

    1997-01-01

    Superconducting magnetic energy storage (SMES) is more useful than other systems of electric energy storage because of its larger amounts of stored energy and its higher efficiency. There are two types of SMES. One is the solenoid type and the other is the toroidal type. Some models of solenoid-type SMES are designed in the U.S. and in Japan. But the large scale SMES causes a high magnetic field in the living environment, and causes the erroneous operation of electronic equipment. The authors studied some suitable designs of magnetic shielding for the solenoidal-type SMES to reduce the magnetic field in the living environment. The toiroidal type SMES is studied in this article. The magnetic leakage flux of the toiroidal-type SMES is generally lower than that of the solenoid-type SMES. The toroidal-type SMES is constructed of unit coils, which are convenient for construction. The magnetic leakage flux occurs between unit coils. The electromagnetic force of the coils is very strong. Therefore analyses of the leakage flux and electromagnetic force are important to the design of SMES. The authors studied the number, radius, and length of unit coils. The storage energy is 5 G Wh. The numerical analyses of magnetic fields in the toroidal type SMES are obtained by analytical solutions. copyright 1997 American Institute of Physics

  11. JOVENS DO SÉCULO XXI NA CULTURA ANALÓGICA DO CINECLUBE

    Directory of Open Access Journals (Sweden)

    Mirna Juliana Santos Fonseca

    2016-07-01

    THE YOUNG GENERATION OF THE XXI CENTURY AND THE FILM CLUB ANALOG CULTURE Abstract: The research takes place in two universities film clubs that is in operation since 2005 and maintain continuous sessions to an audience consisting in mostly by college students. The paper presents the history of these film clubs participants with cinema, observing their films consumption, revealing how the choice of analogue film club culture is given, since the young generation of the XXI century are a part of a digital culture. The article also analyses what these students portrait as relevant from these film clubs experiences in their education. To this end, were interviewed participants of these film clubs that considered their participation as relevant to their education. Keywords: Universities film clubs. Cinema. Formation. Film club culture. LOS JÓVENES DEL SIGLO XXI EN LA CULTURA ANALÓGICA DEL CINECLUB  Resumen: La investigación tiene como locus dos cineclubes universitarios que desde 2005 mantienen sesiones continuadas a los estudiantes universitarios. El artículo presenta la historia de los participantes de esos cineclubes con el cine, observando su relación de consumo de películas, revelando como ocurre la elección por la cultura analógica del cineclube, puesto que los jóvenes del siglo XXI forman parte de una cultura digital y virtual. Además, se analisa qué los estudiantes destacan de relevante en esa experiencia con el cineclub en su formación. Para ello, fueron entrevistados participantes de esos cineclubes los cuales consideran esa actuación relevante a su formación. Palabras clave: Cineclubes universitarios. Cine. Formación. Cultura de cineclube.

  12. The Relationship Between Radiative Forcing and Temperature. What Do Statistical Analyses of the Instrumental Temperature Record Measure?

    International Nuclear Information System (INIS)

    Kaufmann, R.K.; Kauppi, H.; Stock, J.H.

    2006-01-01

    Comparing statistical estimates for the long-run temperature effect of doubled CO2 with those generated by climate models begs the question, is the long-run temperature effect of doubled CO2 that is estimated from the instrumental temperature record using statistical techniques consistent with the transient climate response, the equilibrium climate sensitivity, or the effective climate sensitivity. Here, we attempt to answer the question, what do statistical analyses of the observational record measure, by using these same statistical techniques to estimate the temperature effect of a doubling in the atmospheric concentration of carbon dioxide from seventeen simulations run for the Coupled Model Intercomparison Project 2 (CMIP2). The results indicate that the temperature effect estimated by the statistical methodology is consistent with the transient climate response and that this consistency is relatively unaffected by sample size or the increase in radiative forcing in the sample

  13. XXI sajandi kontuurid / Paul Johnson ; refereerinud Mihkel Mutt

    Index Scriptorium Estoniae

    Johnson, Paul

    1997-01-01

    Washingtonis 14.-16. juunini peetud 'Lääne kirjanduse konverentsil' pidas põhiettekande ameerika ajaloolane ja publitsist Paul Johnson. Refereering tema 'XXI sajandi geopoliitiliste ja kultuuriliste väljavaadete' seisukohtadest

  14. Systems Engineering Force XXI: Experimental Analysis Integration and Systems Engineering Support to the Force XXI Design Effort

    National Research Council Canada - National Science Library

    Brock, H

    1996-01-01

    .... Effective needs are critical because the definition of a successful design effort is meeting or exceeding the effective needs of the client or stakeholder group in a cost-effective, high-quality way...

  15. Medical Business Ethics in the XXI century; Deontologia medica del siglo XXI

    Energy Technology Data Exchange (ETDEWEB)

    Moya Pueyo, V.

    2009-07-01

    Since ancient times the medical professional practice included moral rules in order to assure a correct approach of capital problems. These rules evolve and are now gathered in the Deontological Codes watching the Constitution and other higher Laws. There has been an increase of interest for none strictly clinical matter since the appearance of the term Bioethics. The book Deontologia medica en el siglo XXI tackles problems of first interest in the present times, thru statistics and analysis, trying to help the medical doctors that have to take ethic decisions. (Author)

  16. The probability of false positives in zero-dimensional analyses of one-dimensional kinematic, force and EMG trajectories.

    Science.gov (United States)

    Pataky, Todd C; Vanrenterghem, Jos; Robinson, Mark A

    2016-06-14

    A false positive is the mistake of inferring an effect when none exists, and although α controls the false positive (Type I error) rate in classical hypothesis testing, a given α value is accurate only if the underlying model of randomness appropriately reflects experimentally observed variance. Hypotheses pertaining to one-dimensional (1D) (e.g. time-varying) biomechanical trajectories are most often tested using a traditional zero-dimensional (0D) Gaussian model of randomness, but variance in these datasets is clearly 1D. The purpose of this study was to determine the likelihood that analyzing smooth 1D data with a 0D model of variance will produce false positives. We first used random field theory (RFT) to predict the probability of false positives in 0D analyses. We then validated RFT predictions via numerical simulations of smooth Gaussian 1D trajectories. Results showed that, across a range of public kinematic, force/moment and EMG datasets, the median false positive rate was 0.382 and not the assumed α=0.05, even for a simple two-sample t test involving N=10 trajectories per group. The median false positive rate for experiments involving three-component vector trajectories was p=0.764. This rate increased to p=0.945 for two three-component vector trajectories, and to p=0.999 for six three-component vectors. This implies that experiments involving vector trajectories have a high probability of yielding 0D statistical significance when there is, in fact, no 1D effect. Either (a) explicit a priori identification of 0D variables or (b) adoption of 1D methods can more tightly control α. Copyright © 2016 Elsevier Ltd. All rights reserved.

  17. La intermedialidad en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Ruth Cubillo Paniagua

    2013-08-01

    Full Text Available El frenético y paradójico movimiento que marca la convivencia de los individuos en el siglo XXI, produce cambios en las formas de representación de la realidad, pues al cambiar nuestra percepción del mundo y la forma en que habitamos en él, cambian las maneras de representarlo. Aquí surge y se hace útil la noción de intermedialidad, porque nos permite dar cuenta de los espacios de diálogo entre las prácticas significantes -o procesos artístico-culturales- y los medios tecnológicos o digitales. Cuando se habla de intermedialidades surgen varias preguntas fundamentales: ¿qué sucede cuando dialogan diversas manifestaciones artísticas ontológicamente tradicionales con las formas de expresión propias de las tecnologías digitales? ¿Cuáles son las implicaciones del concepto de intermedialidad? y, en el contexto de la academia, ¿qué nuevos campos de estudio surgen al partir de esta noción? ¿Qué impacto tienen los estudios desde la intermedialidad sobre el proceso de enseñanza-aprendizaje y sobre la investigación que efectuamos desde las diversas disciplinas, sobre el mundo de la industria cultural y sobre el patrimonio cultural de  nuestros países? Algunas de estas preguntas procuran ser contestadas en este trabajo, otras solamente se plantean para generar un debate necesario.

  18. XXI symposium Modern chemical physics. Tuapse 2009. Summaries of reports

    International Nuclear Information System (INIS)

    2009-01-01

    The materials of the XXI symposium Modern chemical physics, Tuapse 2009 (25 September - 6 October, 2009) are presented. Scientific program includes lectures, presentations and poster sessions on photochemistry and radiation chemistry, elementary processes, homogeneous and heterogeneous catalysis. The problems of chemical reaction kinetics, quantum chemistry, chemical spectroscopy, macromolecular chemistry are discussed. Topics of chemical physics of surface, nanochemistry, nanophysics and nanotechnology are treated [ru

  19. 2. International conference on nuclear technologies of XXI centuries. Abstracts

    International Nuclear Information System (INIS)

    Yakushev, A.P.

    2010-01-01

    The collection contains abstracts of the II International conference 'Nuclear technologies of the XXI century' on energy problems in the world, the prospects for nuclear power plant in Belarus, the various technological, technical and economic aspects of nuclear safety of NPP and nuclear reactions and international cooperation. The materials published in electronic form.

  20. What history tells us XXI. Apoptosis and programmed cell death

    Indian Academy of Sciences (India)

    2010-04-30

    Apr 30, 2010 ... Home; Journals; Journal of Biosciences; Volume 35; Issue 2. What history tells us XXI. Apoptosis and programmed cell death: when biological categories are blurred. Michel Morange. Series Volume 35 Issue 2 June 2010 pp 177-181 ...

  1. Quantitative Analyses of Force-Induced Amyloid Formation in Candida albicans Als5p: Activation by Standard Laboratory Procedures.

    Directory of Open Access Journals (Sweden)

    Cho X J Chan

    Full Text Available Candida albicans adhesins have amyloid-forming sequences. In Als5p, these amyloid sequences cluster cell surface adhesins to create high avidity surface adhesion nanodomains. Such nanodomains form after force is applied to the cell surface by atomic force microscopy or laminar flow. Here we report centrifuging and resuspending S. cerevisiae cells expressing Als5p led to 1.7-fold increase in initial rate of adhesion to ligand coated beads. Furthermore, mechanical stress from vortex-mixing of Als5p cells or C. albicans cells also induced additional formation of amyloid nanodomains and consequent activation of adhesion. Vortex-mixing for 60 seconds increased the initial rate of adhesion 1.6-fold. The effects of vortex-mixing were replicated in heat-killed cells as well. Activation was accompanied by increases in thioflavin T cell surface fluorescence measured by flow cytometry or by confocal microscopy. There was no adhesion activation in cells expressing amyloid-impaired Als5pV326N or in cells incubated with inhibitory concentrations of anti-amyloid dyes. Together these results demonstrated the activation of cell surface amyloid nanodomains in yeast expressing Als adhesins, and further delineate the forces that can activate adhesion in vivo. Consequently there is quantitative support for the hypothesis that amyloid forming adhesins act as both force sensors and effectors.

  2. The influence of foot geometry on the calcaneal osteotomy angle based on two-dimensional static force analyses

    NARCIS (Netherlands)

    Reilingh, M.L.; Tuijthof, G.J.M.; Van Dijk, C.N.; Blankevoort, L.

    2011-01-01

    Background: Malalignment of the hindfoot can be corrected with a calcaneal osteotomy (CO). A well-selected osteotomy angle in the sagittal plane will reduce the shear force in the osteotomy plane while walking. The purpose was to determine the presence of a relationship between the foot geometry and

  3. The influence of foot geometry on the calcaneal osteotomy angle based on two-dimensional static force analyses

    NARCIS (Netherlands)

    Reilingh, M. L.; Tuijthof, G. J. M.; van Dijk, C. N.; Blankevoort, L.

    2011-01-01

    Malalignment of the hindfoot can be corrected with a calcaneal osteotomy (CO). A well-selected osteotomy angle in the sagittal plane will reduce the shear force in the osteotomy plane while walking. The purpose was to determine the presence of a relationship between the foot geometry and loading of

  4. Strategic Marketing for Indonesian Plywood Industry: An Analyse by using Porter Five Forces Model and Generic Strategy Framework

    OpenAIRE

    Makkarennu; Nakayasu, A.; Osozawa, K.; Ichikawa, M.

    2014-01-01

    The target for a marketing strategy is to find a way of achieving a sustainable competitive advantage over the other competing products and firms in a market.Good strategy serves as a road map for effective action. Porter???s five forces model and three generic strategies were used to evaluate the structure and the strategy for positioning of plywood industry in South Sulawesi, Indonesia. Qualitative research was carried out by using in-depth interview method. Having expressed either agree...

  5. Thermal-Hydraulic Analyses of Transients in an Actinide-Burner Reactor Cooled by Forced Convection of Lead Bismuth

    Energy Technology Data Exchange (ETDEWEB)

    Davis, Cliff Bybee

    2003-09-01

    The Idaho National Engineering and Environmental Laboratory (INEEL) and the Massachusetts Institute of Technology (MIT) are investigating the suitability of lead or lead–bismuth cooled fast reactors for producing low-cost electricity as well as for actinide burning. The current analysis evaluated a pool type design that relies on forced circulation of the primary coolant, a conventional steam power conversion system, and a passive decay heat removal system. The ATHENA computer code was used to simulate various transients without reactor scram, including a primary coolant pump trip, a station blackout, and a step reactivity insertion. The reactor design successfully met identified temperature limits for each of the transients analyzed.

  6. Investigation of the influence of vertical force on the contact between truck tyre and road using finite element analyses

    Science.gov (United States)

    Moisescu, Alexandra-Raluca; Anghelache, Gabriel

    2017-10-01

    In the modern context of automobile integration with the emerging technologies of the interconnected society, the interaction between tyre and road is an element of major importance for automobile safety systems such as the intelligent tyres, as well as for passenger comfort, fuel economy, environmental protection, infrastructure and vehicle durability. The tyre-road contact generates the distribution of forces exerted on each unit area in the contact patch, therefore the distribution of contact stresses on three orthogonal directions. The numerical investigation of stresses distribution in the contact patch requires the development of finite element models capable of accurately describing the interaction between tyre and rolling surface. The complex finite element model developed for the 11R22.5 truck tyre has been used for investigating the influence of vertical force on the distributions of contact stresses. In addition to these contributions, the paper presents aspects related to the simulation of truck tyre radial stiffness. The influence of tyre rolling has not been taken into consideration, as the purpose of the current research is the investigation of tyre-road contact in stationary conditions.

  7. The Law of the Subject: Alain Badiou, Luitzen Brouwer and the Kripkean Analyses of Forcing and the Heyting Calculus

    Directory of Open Access Journals (Sweden)

    Zachary Fraser

    2006-10-01

    Full Text Available One of the central tasks of Badioursquo;s Being and Event is to elaborate a theory of the subject in the wake of an axiomatic identification of ontology with mathematics, or, to be precise, with classical Zermelo-Fraenkel set theory. The subject, for Badiou, is essentially a free project that originates in an event, and subtracts itself from both being qua being, as well as the linguistic and epistemic apparatuses that govern the situation. The subjective project is, itself, conceived as the temporal unfolding of a lsquo;truthrsquo;. Originating in an event and unfolding in time, the subject cannot, for Badiou, be adequately understood in strictly ontological, i.e. set-theoretical, terms, insofar as neither the event nor time have any place in classical set theory. Badiou nevertheless seeks to articulate the ontological infrastructure of the subject within set theory, and for this he fastens onto Cohenrsquo;s concepts of genericity and forcing: the former gives us the set-theoretic structure of the truth to which the subject aspires, the latter gives us the immanent logic of the subjective procedure, the ldquo;law of the subjectrdquo;. Through the forcing operation, the subject is capable of deriving veridical statements from the local status of the truth that it pursues. Between these set-theoretic structures, and a doctrine of the event and temporality, Badiou envisions the subject as an irreducibly diachronic unfolding of a truth subtracted from language, a subject which expresses a logic quite distinct from that which governs the axiomatic deployment of his classical ontology. This vision of the subject is not unique to Badioursquo;s work. We find a strikingly similar conception in the thought of L.E.J. Brouwer, the founder of intuitionist mathematics. Brouwer, too, insists on the necessary subtraction of truth from language, and on its irreducibly temporal genesis. This genesis, in turn, is entirely concentrated in the autonomous activity

  8. EL MANEJO DE LA BIODIVERSIDAD EN EL SIGLO XXI

    Science.gov (United States)

    ARIEL E. LUGO

    2001-01-01

    ser humano está transformando rápidamente el planeta Tierra (Meyer y Turner, 1994; Vitousek et al., 1997a). Su actividad tiene efectos globales que modifican el ambiente terrícola (Tabla I). Estos cambios, que comenzaron con la revolución industrial del siglo XIX, serán más notables en el siglo XXI en lo que se ha denominado la era Homogeocena donde el efecto dominante...

  9. Atomic force microscopy and transmission electron microscopy analyses of low-temperature laser welding of the cornea.

    Science.gov (United States)

    Matteini, Paolo; Sbrana, Francesca; Tiribilli, Bruno; Pini, Roberto

    2009-07-01

    Low-temperature laser welding of the cornea is a technique used to facilitate the closure of corneal cuts. The procedure consists of staining the wound with a chromophore (indocyanine green), followed by continuous wave irradiation with an 810 nm diode laser operated at low power densities (12-16 W/cm(2)), which induces local heating in the 55-65 degrees C range. In this study, we aimed to investigate the ultrastructural modifications in the extracellular matrix following laser welding of corneal wounds by means of atomic force microscopy and transmission electron microscopy. The results evidenced marked disorganization of the normal fibrillar assembly, although collagen appeared not to be denatured under the operating conditions we employed. The mechanism of low-temperature laser welding may be related to some structural modifications of the nonfibrillar extracellular components of the corneal stroma.

  10. Sida- Tuberculosis La Epidemia del Siglo XXI

    Directory of Open Access Journals (Sweden)

    Gilberto Rueda Pérez

    1994-03-01

    decreciente se estabilizaba y a partir de 1984, comenzaba a ascender paulatinamente y, en algunas regiones del planeta en forma vertiginosa.

    Este despertar del proceso llamó naturalmente la atención de los científicos, algunos de cuyos exponentes más destacados se reunieron en Londres en abril de 1993 en la Escuela Londinense de Higiene y Medicina Tropical, para celebrar el tercer Foro sobre tuberculosis que se llamó De regreso al futuro (Back to the future con el objeto de analizar las causas productoras de este inesperado ascenso.

    Este renacer de la tuberculosis en el mundo se destacaba desde hacía algún tiempo no solamente en las revistas médicas sino que en los periódicos diarios y en los magazines semanales tanto de Europa como de los EE.UU., se observaban con gran frecuencia llamativos titulares referentes al asunto.

    El factor hallado como el más relievante en la patología actual que pudiera destacarse como el causante de esta reactivación, fue el Síndrome de Inumodeficiencia Adquirida SIDA nuevo proceso descrito clínicamente en 1981 y cuya causaetiológica es descubierta por Montagnier en Francia y Gallo en EE.UU. en 1983 -101 años después del descubrimiento de Koch-, un virus de características especiales entre ellas las mutaciones frecuentes, proceso que se propagó rápidamente primero entre los negros especialmente de Haití, luego entre los homosexuales y posteriormente cubriendo todos los estratos humanos, tanto en sexo, como en estado socioeconómico y razas, para convertirse en la epidemia más peligrosa y de más difícil control que ataca en la actualidad al hombre.

    Al coincidir la iniciación de la epidemia de SIDA con el alza en la incidencia de TBC, los estudios del Foro menciona do fueron dedicados especialmente a la simbiosis de estos dos procesos patológicos, que constituyen sin duda la llamada EPIDEMIA DEL SIGLO XXI.

    Analizaremos algunos de los factores relacionados con el tratamiento de la tuberculosis

  11. Experimental sharp force injuries to ribs: Multimodal morphological and geometric morphometric analyses using micro-CT, macro photography and SEM.

    Science.gov (United States)

    Komo, Larissa; Grassberger, Martin

    2018-07-01

    Tool marks on bones induced by knife blades can be analysed morphometrically in order to enable an allocation of the suspected "inflicting weapon" to the particular morphology of the bone lesions. Until now, geometric morphometrics has not been used to analyse the morphology of knife lesions on fleshed bones in detail. By using twelve experimental knives and a drop weight tower, stab/cut injuries were inflicted on untreated pig ribs. The morphology of the experimentally produced lesions was subsequently recorded with three imaging techniques (μCT, macro photography and SEM) and analysed with different morphometric software (Amira, tps and Morpheus). Based on the measured distances between the walls of the kerf marks, which corresponded to the thickness of the blade, one could conclude to the respective blade thickness with a deviation of max. ±0.35mm and match the injuries to the knives. With subsequent reanalysis after maceration, an average shrinkage factor up to 8.6% was observed. Among the three imaging techniques used in this study, μCT was the most accurate and efficient technique, particularly because it represented the only non-destructive modality to document injuries without maceration, even though μCT is more expensive and time-consuming as well as less accessible than a macro SLR-camera or a SEM. For optimal characterizations of the blades' and kerfs' shapes the software tps proofed to be the best choice. Accordingly, geometric morphometrics could serve as a tool in forensic investigations concerning kerf marks. Copyright © 2018 Elsevier B.V. All rights reserved.

  12. Phenomenological and statistical analyses of turbulence in forced convection with temperature-dependent viscosity under non-Boussinesq condition.

    Science.gov (United States)

    Yahya, S M; Anwer, S F; Sanghi, S

    2013-10-01

    In this work, Thermal Large Eddy Simulation (TLES) is performed to study the behavior of weakly compressible Newtonian fluids with anisotropic temperature-dependent viscosity in forced convection turbulent flow. A systematic analysis of variable-viscosity effects, isolated from gravity, with relevance to industrial cooling/heating applications is being carried out. A LES of a planar channel flow with significant heat transfer at a low Mach number was performed to study effects of fluid property variation on the near-wall turbulence structure. In this flow configuration the top wall is maintained at a higher temperature (T hot ) than the bottom wall (T cold ). The temperature ratio (R θ = T hot /T cold ) is fixed at 1.01, 2 and 3 to study the effects of property variations at low Mach number. Results indicate that average and turbulent fields undergo significant changes. Compared with isothermal flow with constant viscosity, we observe that turbulence is enhanced in the cold side of the channel, characterized by locally lower viscosity whereas a decrease of turbulent kinetic energy is found at the hot wall. The turbulent structures near the cold wall are very short and densely populated vortices but near the hot wall there seems to be a long streaky structure or large elongated vortices. Spectral study reveals that turbulence is completely suppressed at the hot side of the channel at a large temperature ratio because no inertial zone is obtained (i.e. index of Kolmogorov scaling law is zero) from the spectra in these region.

  13. Remote sensing and GIS analyses for emergency manouvering and forced landing areas definition as a support for general aviation flights

    Science.gov (United States)

    Skocki, Krzysztof

    2016-08-01

    This paper summarizes the preliminary analyses of using existing remote sensing data, medium and high-resolution satellite and airborne data to define safe emergency landing and maneuvering areas to be used by small aircrafts operating from small airports and airfields in Poland. The pilots need to know such places in the interest of safe flight operations. In common practice, flying instructors typically show the student pilot fields around the airfield supposed to be suitable for emergency or precautionary landing (or ditching) in the initial phase of the training. Although it looks to cover the most basic needs, the problem still exists in relation to guest pilots. To fill this gap, the unified safety map document covering the safe emergency areas around the airfields is proposed in this research. Use of satellite high resolution data, as well as aerial photos, infrastructure information, with use of GIS tools (like buffer zones, distance, equal-time circles or position lines) enable to check the terrain around selected airfields and define possible areas suitable for emergency operations. In the second phase of work, selected areas will be described in terms of easy navigation, possible infrastructure around them, rescue possibilities, radio signal coverage, and others. The selected areas should be also checked for typical cover and surface hardness and stability (eg. with use of moisture estimation on the base of middle-resolution satellite data). Its planned to prepare one combined and separate sheets of the final map for various aircraft characteristics (`classes' of small Cessna-related, big Cessna-related, fast low-wing Diamond-like, two-engine Piper-like). The presented concept should highly increase the safety operations for small aviation in secondary airports and airfields, where the information available is limited. There is also a possibility to make a similar maps for `cruise', which means the areas with dense traffic between the airports/airfields.

  14. Social Behavior and Autism Traits in a Sex Chromosomal Disorder: Klinefelter (47XXY) Syndrome

    Science.gov (United States)

    van Rijn, Sophie; Swaab, Hanna; Aleman, Andre; Kahn, Rene S.

    2008-01-01

    Although Klinefelter syndrome (47,XXY) has been associated with psychosocial difficulties, knowledge of the social behavioral phenotype is limited. We examined specific social abilities and autism traits in Klinefelter syndrome. Scores of 31 XXY men on the Scale for Interpersonal Behavior and the Autism Spectrum Questionnaire were compared to 24…

  15. Social behavior and autism traits in a sex chromosomal disorder : Klinefelter (47XXY) syndrome

    NARCIS (Netherlands)

    van Rijn, Sophie; Swaab, Hanna; Aleman, Andre; Kahn, Rene S.

    2008-01-01

    Although Klinefelter syndrome (47,XXY) has been associated with psychosocial difficulties, knowledge of the social behavioral phenotype is limited. We examined specific social abilities and autism traits in Klinefelter syndrome. Scores of 31 XXY men on the Scale for Interpersonal Behavior and the

  16. XXI century projections of wind-wave conditions and sea-level rise in the Black sea

    Science.gov (United States)

    Polonsky, A.; Garmashov, A.; Fomin, V.; Valchev, N.; Trifonova, E.

    2012-04-01

    Projection of regional climate changes for XXI century is one of the priorities of EC environmental programme. Potential worsening of the waves' statistics, sea level rise and extreme surges are the principal negative consequences of the climate change for marine environment. That is why the main purpose of this presentation is to discuss the above issue for the Black sea region (with a strong focus to the south-west subregion because the maximum heights of waves exceeding 10 m occur just here) using output of several global coupled models (GCM) for XXI century, wave simulation, long-term observations of sea level and statistical techniques. First of all we tried to choose the best coupled model (s) simulated the Black sea climate change and variability using the control experiments for 20 century (203). The principal result is as follows. There is not one model which is simulating adequately even one atmospheric parameter for all seasons. Therefore we considered (for the climate projection) different outputs form various models. When it was possible we calculated also the ensemble mean projection for the selected model (s) and emission scenarios. To calculate the wave projection we used the output of SWAN model forced by the GCM wind projection for 2010 to 2100. To estimate the sea level rise in XXI century and future surges statistics we extrapolate the observed sea level rise tendencies, statistical relation between wave heights and sea level and wave scenarios. Results show that in general, the climate change in XXI century doesn't lead to the catastrophic change of the Black sea wind-wave statistics including the extreme waves in the S-W Black sea. The typical atmospheric pattern leading to the intense storm in the S-W Black sea is characterized by the persistent anticyclonic area to the North of the Black sea and cyclonic conditions in the Southern Black sea region. Such pressure pattern causes persistent and strong eastern or north-eastern wind which

  17. Organic light emission structures — XXI century technologies

    Directory of Open Access Journals (Sweden)

    Sorokin V. M.

    2009-02-01

    Full Text Available The given review allows to believe, that the decision of a complex technological, materialstechnological, technical problems at creation modern OLED- and PLED-devices in nearest 5—10 years will result in creation of devices with power efficiency more than 100 lm/W and service life till 100 000 hours. The realization of such parameters will allow to expand area of application of the considered systems and to create in the future unique flat powereffective organic lighting systems of new generation — light sources XXI of century.

  18. TENDENCIAS DE LA MERCADOTECNIA EN EL SIGLO XXI

    OpenAIRE

    Ma. Walesska Schlesinger Díaz; Leifel Hernández

    2004-01-01

    El presente artículo tiene como objetivo central explorar las tendencias que en el siglo XXI están revolucionando la práctica del mercadeo en las organizaciones. Para ello se caracteriza, en términos generales, el concepto de mercadotecnia, así como, la evolución de la misma desde sus inicios. Posteriormente se consideran los cambios tecnológicos, sociales y de mercado que han surgido en los inicios del milenio, para finalmente identificar las tendencias y desafíos a los cuales se enfrentan l...

  19. Development of fine-resolution analyses and expanded large-scale forcing properties: 2. Scale awareness and application to single-column model experiments

    Science.gov (United States)

    Feng, Sha; Li, Zhijin; Liu, Yangang; Lin, Wuyin; Zhang, Minghua; Toto, Tami; Vogelmann, Andrew M.; Endo, Satoshi

    2015-01-01

    three-dimensional fields have been produced using the Community Gridpoint Statistical Interpolation (GSI) data assimilation system for the U.S. Department of Energy's Atmospheric Radiation Measurement Program (ARM) Southern Great Plains region. The GSI system is implemented in a multiscale data assimilation framework using the Weather Research and Forecasting model at a cloud-resolving resolution of 2 km. From the fine-resolution three-dimensional fields, large-scale forcing is derived explicitly at grid-scale resolution; a subgrid-scale dynamic component is derived separately, representing subgrid-scale horizontal dynamic processes. Analyses show that the subgrid-scale dynamic component is often a major component over the large-scale forcing for grid scales larger than 200 km. The single-column model (SCM) of the Community Atmospheric Model version 5 is used to examine the impact of the grid-scale and subgrid-scale dynamic components on simulated precipitation and cloud fields associated with a mesoscale convective system. It is found that grid-scale size impacts simulated precipitation, resulting in an overestimation for grid scales of about 200 km but an underestimation for smaller grids. The subgrid-scale dynamic component has an appreciable impact on the simulations, suggesting that grid-scale and subgrid-scale dynamic components should be considered in the interpretation of SCM simulations.

  20. The Church and Socialism of the XXI Century

    Directory of Open Access Journals (Sweden)

    Francois Houtart

    2008-06-01

    Full Text Available Recuerdo que hace dos meses vine a participar en el seminario organizado por el Serpaj (Servicio de Paz y Justicia; ahora estoy particularmente feliz de estar nuevamente con ustedes para hablar sobre el Socialismo del siglo XXI y la Iglesia del siglo XXI. De hecho, el tema es realmente de actualidad puesto que en América Latina vivimos por primera vez esta situación, después de mucho tiempo, en el que pasamos de las resistencias a las alternativas, no digo que sea la alternativa definitiva, pero se trata de pasos en dirección de las alternativas. América Latina es el único continente en el mundo actual que experimenta alternativas. Si consideramos por ejemplo el Asia, allí se vive el neoliberalismo más como una oportunidad que como una agresión. Es muy claro para la opinión general en América Latina que el neoliberalismo ha sido una agresión económica, política, cultural. En cambio, en países como la India,Vietnam y China se mira el neoliberalismo o el capitalismo tal vez como una oportunidad, por eso estamos todavía en estado, no solamente de construcción de alternativas, sino aún de resistencias.

  1. XXI Pärnu filmifestival tuleb valikkavaga / Lii Bärlin

    Index Scriptorium Estoniae

    Bärlin, Lii

    2007-01-01

    24. ja 25. juulil näidatakse huvilistele Rakvere Teatrikinos XXI Pärnu filmifestivali raames filmide valikkava. Filme soovitavad Mark Soosaar, Rakvere Teatrikino projektijuht Jaanus Kaasik. Lisatud filmide kava

  2. La pedagogía profesional del siglo XXI

    Directory of Open Access Journals (Sweden)

    Jordi Riera i Romaní

    2008-01-01

    Full Text Available El artículo hace un breve repaso en torno a tres aspectos fundamentales respecto la pedagogía y la función profesional del pedagogo/a del siglo XXI. En primer lugar reseñar algunos de los ejes de transición pedagógica en los que estamos inmersos en este cambio de siglo. En segundo lugar, y derivado de este primer análisis, se apuntan algunos aspectos de la evolución de la identidad profesional pedagógica y de su formación universitaria. Finalmente, se apunta la importancia que en este proceso tendrá la capacidad de organización profesional del colectivo para poder desarrollar óptimamente su función social.

  3. Viajando con Don Quijote en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Odilíe Rojas-López

    2006-06-01

    Full Text Available Don Quixote has ridden with us for a long time now, and as if his fight against windmills were not enough, Don Quixote still has many more difficult situations to combat in the present times. Will the Knight of the Sad Figure accomplish this new deed? It is our challenge to find an answer to this inquiry. For this purpose, the author of this essay inserts the Knight of the Sad Figure in XXI century society. The author transforms the values, costumes and points of view of the times of the literary piece and establishes a series of relationships between the literary text, the main character and several current daily life situations. Don Quixote will certainly continue his fight against all the conditions we encounter nowadays. There is no doubt, then, that this knight still lives among us.

  4. El socialismo del siglo XXI, ¿una alternativa factible?

    Directory of Open Access Journals (Sweden)

    Alejandro Agafonow

    2009-06-01

    Full Text Available Este escrito hace un análisis crítico de una de las fuentes del socialismo del siglo XXI. Los regímenes socialistas del siglo XX distorsionaron el modelo teórico marxista, en parte debido a la imposibilidad del cálculo económico en el sistema socialista centralizado. Allin Cottrell y Paul Cockshott sostienen que esta imposibilidad se puede superar con el uso de computadores y la tecnología de Internet. El artículo critica algunos aspectos económicos y políticos de su propuesta. La crítica de los aspectos económicos se inspira en el socialismo de mercado, mientras que la de los aspectos políticos se desarrolla a partir de los debates sobre el liberalismo político o igualitario.

  5. Siglo XXI: reto a la información

    Directory of Open Access Journals (Sweden)

    Luz Ángela Osorio Bernal

    2002-10-01

    Full Text Available En los inicios del siglo XXI, la Facultad de Medicina de la Universidad Nacional de Colombia debe abordar el reto de la educación en salud con una visión moderna y adecuada a las técnicas actuales de la informática y la comunicación. Esto sin desconocer nuestra trayectoria docente y profesional que es, precisamente, donde se encuentra nuestra mayor fortaleza. Es por ello, que la administración actual se ha empeñado en convocar a los docentes de las cinco carreras de nuestra facultad a producir un hipertexto propio, dentro las múltiples políticas tendientes a la actualización y producción del saber autóctono, en coordinación con el conocimiento universal.

  6. Hostile outbursts in the XXI century Argentina. Persistence and recurrence of a disruptive form Los estallidos de hostilidad en la Argentina del siglo XXI. Persistencia y recurrencia de una forma disruptiva

    Directory of Open Access Journals (Sweden)

    Julián REBÓN

    2012-10-01

    Full Text Available Direct forms of confrontation represent one of the main features of the social conflict in Argentina in the xxI century. Particularly, the hostile outbursts have constituted a dynamic that is present throughout the decade. The public system of railway transportation of passengers in the metropolitan area of Buenos Aires was one of the social spaces with the most recurrence of this kind of collective action. Between 2003 and 2009 a cycle of hostile outbursts took place, in which groups of passengers attacked goods and employees of the concessionary enterprise –and in some cases security forces involved– showing its social dissatisfaction with the quality of service. In this paper, we expose a hypothetical frame in order to explain these events while promoting a conceptual debate about this kind of action.Las formas directas de confrontación representan una de las características salientes de la conflictividad social en la Argentina del siglo XXI. En particular, los estallidos de hostilidad constituyen una dinámica presente a lo largo de toda la década. El transporte ferroviario de pasajeros del área metropolitana de Buenos Aires se erigió en uno de los espacios sociales con gran recurrencia de este tipo de acciones. Entre 2003 y 2009 se desarrollaron una serie de estallidos en los cuales grupos de pasajeros atacaban bienes y trabajadores de las empresas prestatarias –y en ocasiones a las fuerzas de seguridad que intervenían– con el objeto de expresar su disconformidad con la forma de prestación del servicio. En este artículo exponemos los resultados de nuestra investigación sobre dichos episodios, presentando un marco hipotético-conceptual que da cuenta de los mismos y promueve en simultáneo un debate conceptual sobre esta forma de acción directa.

  7. Gender operations: the film XXY (2007 and the constitution of the body and sex as “natural”.

    Directory of Open Access Journals (Sweden)

    Luciana Fogaça Monteiro

    2009-11-01

    Full Text Available Based on Foucault’s concept of the body as the surface of inscription of history, and on the work of Judith Butler, this article questions the way that binary and normative conceptions of gender operate in the constitution of a field of intelligibility for subjects and their bodies. We analyse the film XXY (2007 that tells the story of Alex, an intersexual adolescent. We use the main character's story to see how gender norms act to shape bodies and limit their pleasures. We argue that subjects and bodies that do not correspond to the normative ideal are seen as “abject bodies”, following Butler’s definition. The argument is that gender norms operate on all bodies: the normal and the abject.

  8. Proceedings of 7. international scientific conference 'Sakharov readings 2007: Ecological problems of XXI century'; Materialy 7-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2007 goda: Ehkologicheskie problemy XXI veka'

    Energy Technology Data Exchange (ETDEWEB)

    Kundas, S P; Mel' nov, S B; Poznyak, S S [International A. Sakharov environmental univ., Minsk (Belarus)

    2007-05-15

    Abstracts of the seventh international scientific conference 'Sakharov readings 2007: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems, medical ecology, biomonitoring and bioindication, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  9. Vision of Nuclear Power Options for XXI Century

    Energy Technology Data Exchange (ETDEWEB)

    Adamov, E.; Muraviev, E.; Orlov, V.

    2007-07-01

    This work once again brings to attention the fundamental ideas of the long-term nuclear power development on the basis of the new generation of Fast neutron Reactors, naturally safe, economically attractive and employing the proliferation-resistant and low-waste fuel cycle. The Universal System Model (USM-1), new analytical research tool recently developed in N.A. Dollezhal Research and Design Institute of Power Engineering (Moscow, Russia) has been used to evaluate several scenarios (including traditional ones) of the World nuclear power development for electricity production within the XXI century. For scenarios comparison 3 criteria were used: the levelized cost of electricity, the fuel supply security (in terms of natural uranium total consumption and prospects for further fuel balance), and the potential hazard of radioactive wastes. The clear advantage of scenario with the most complete realization of the new Fast Reactors technology potential is revealed. The authors strongly believe that the prospects of this new technology worldwide implementation deserve the due attention of responsible governments and international organizations. 2 Tables, 13 Figures, 10 References. (auth)

  10. Bacillus thuringiensis: the legacy to the XXI century

    Directory of Open Access Journals (Sweden)

    M. Realpe

    1998-01-01

    Full Text Available Bacillus thuringiensis-based insecticides are the main production line of the biopesticides world market. The research devoted to this area, promoted by the necessity to solve problems in agriculture and public health has resulted in an exhaustive knowledge of its biology. The diversity of the B. thuringiensis strains has permitted to develop several products mainly, but not exclusively, for insect control. With the new developments in the field of molecular biology, it has been possible to understand the molecular basis of the mode of action and to increase the range of activity as well. As a result of the broad use in several countries, resistant strains of some of the susceptible insects have appeared. The aim of this review is to elaborate a theoretical framework of the current state of research on B. thuringiensis, describing briefly the knowledge on this bacterium, with emphasis on biological phenomena that underlie its toxic activity and the problems that will be faced during the XXI century with the increasingly common resistance, all this analyzed from a biotechnological perspective.

  11. C-reactive protein as a risk factor for coronary heart disease: a systematic review and meta-analyses for the U.S. Preventive Services Task Force.

    Science.gov (United States)

    Buckley, David I; Fu, Rongwei; Freeman, Michele; Rogers, Kevin; Helfand, Mark

    2009-10-06

    C-reactive protein (CRP) may help to refine global risk assessment for coronary heart disease (CHD), particularly among persons who are at intermediate risk on the basis of traditional risk factors alone. To assist the U.S. Preventive Services Task Force (USPSTF) in determining whether CRP should be incorporated into guidelines for CHD risk assessment. MEDLINE search of English-language articles (1966 to November 2007), supplemented by reference lists of reviews, pertinent studies, editorials, and Web sites and by expert suggestions. Prospective cohort, case-cohort, and nested case-control studies relevant to the independent predictive ability of CRP when used in intermediate-risk persons. Included studies were reviewed according to predefined criteria, and the quality of each study was rated. The validity of the body of evidence and the net benefit or harm of using CRP for CHD risk assessment were evaluated. The combined magnitude of effect was determined by meta-analysis. The body of evidence is of good quality, consistency, and applicability. For good studies that adjusted for all Framingham risk variables, the summary estimate of relative risk for incident CHD was 1.58 (95% CI, 1.37 to 1.83) for CRP levels greater than 3.0 mg/L compared with levels less than 1.0 mg/L. Analyses from 4 large cohorts were consistent in finding evidence that including CRP improves risk stratification among initially intermediate-risk persons. C-reactive protein has desirable test characteristics, and good data exist on the prevalence of elevated CRP levels in intermediate-risk persons. Limited evidence links changes in CRP level to primary prevention of CHD events. Study methods for measuring Framingham risk variables and other covariates varied. Ethnic and racial minority populations were poorly represented in most studies, limiting generalizability. Few studies directly assessed the effect of CRP on risk reclassification in intermediate-risk persons. Strong evidence indicates

  12. La evolución del juego de ataque en balonmano. Revisión histórica: Los inicios del Siglo XXI.

    Directory of Open Access Journals (Sweden)

    Juan de Dios Román Seco

    2009-12-01

    Full Text Available Resumen El deporte moderno evoluciona de forma acelerada en un contexto "supradeportivo" en línea con las exigencias del espectáculo; responder a las mismas ha obligado en determinados momentos a introducir normas que tengan como norte imprescindible un juego atractivo para ser evaluado positivamente en las complejas exigencias del marketing y venta del producto. El Balonmano, deporte relativamente joven, no podía quedar al margen del "mercado competitivo" al uso y no alejarse del entorno de mercado, promoción, TV, medios de comunicación, espectadores, etc. La profesionalización era un camino obligado para mejorar conductas en aras del espectáculo citado. Los especialistas y responsables de la elite, así como aquellos que se inician en el conocimiento del juego, no deben olvidar las raíces, las bases y la evolución histórica del juego de ataque de esta especialidad deportiva para, apoyados en ellas, aportar ideas  creativas que enriquezcan si es posible este producto dinámico, competitivo e inteligente que dibuja el Balonmano. El presente artículo es una revisión del trabajo publicado en el volumen 2 de esta revista, “Los inicios del siglo XXI: evolución y tendencias del juego”. Palabras clave: Balonmano, Siglo XXI, Evolución, Ataque, Deporte Espectáculo.   Abstract Modern sport evolves quickly in a supra-sport context according to the demands of the show. This has forced in certain moments to introduce norms in order to get an attractive game that responds to the complex demands of the marketing and sale of the product. Handball, though a relatively young sport, can not be far from the competitive market, sport promotion, the television, media, spectators, etc. Professionalization was the best way to improve habits in favor of the show. Specialists, managers of elite players and those  new to the game,  should not forget the roots, the bases and the historical evolution of the offensive aspect of this sport. The

  13. Panorama de las Academias frente al Siglo XXI

    Directory of Open Access Journals (Sweden)

    Zoilo Cuellar Montoya

    1996-12-01

    Full Text Available

    Secretario General
    Academia Nacional de Medicina de Colombia.

    Como representante de 106 años ininterrumpidos de servicio a la medicina, de dedicación incondicional a los pacientes, quiero ser portador de un mensaje de unidad y de fraternidad para el cuerpo médico de Colombia y de la América Latina, condiciones que en la Academia Nacional de Medicina de Colombia consideramos imperativas para adecuar nuestras instituciones a los caleidoscópicos cambios del ejercicio de nuestra profesión, en los albores del siglo XXI, del tercer milenio.

    Quiero transmitirles las experiencias y las conclusiones emanadas, tanto de los diferentes foros que hemos tenido en Santa Fe de Bogotá como del 1 Encuentro Nacional de Academias de Medicina de Colombia, realizado en esta ciudad en marzo pasado. Cuando se inauguró dicho Encuentro nuestro Presidente, el Académico Gilberto Rueda Pérez, anotaba “La ciencia y la tecnología modernas reclaman para el futuro, más que nunca, la presencia directiva de la Academia, pero no de una Academia quieta, que descansa complacida en pretéritas épocas de oro, improductiva, órgano asesor a quien nadie consulta, sino de una Academia viva, dinámica, agresiva, capaz de aportar a través de su gran acerbo de inteligencia, de conocimientos y de experiencia y de su enorme poder de liderazgo, todo aquello que el cuerpo médico nacional espera de ella para el siglo XXI “.

    Años atrás, cuando se perfilaba el nombramiento de un nuevo Ministro de Salud, la Academia dirigió una carta al Presidente de la República que fue desatendida totalmente. En dicha carta la Academia le solicitaba que escogiera a un médico para que se encargara de la cartera de salud, por años en manos de administradores y economistas, con detrimento de los programas nacionales de salud y de las campañas contra los principales flagelos nosológicos de nuestra patria. La respuesta fue el

  14. The intersex body and the politicization of the abject in XXY

    Directory of Open Access Journals (Sweden)

    Leandro Colling

    2011-12-01

    Full Text Available What can the intersex body tell us? How does this issue get more complex if we think about its representation in the media, specially in cinema? In this article, starting from Lucia Puenzo's XXY, we pose these and other questions related to deviant bodies and desires. With a subversive and non-pathologizing discourse, XXY proposes a careful look at the subjectivities of these experiences. We argue that the film, in resonance with the queer studies, is alert to the politicization of the abject bodies.

  15. TENDENCIAS DE LA MERCADOTECNIA EN EL SIGLO XXI

    Directory of Open Access Journals (Sweden)

    Ma. Walesska Schlesinger Díaz

    2004-01-01

    Full Text Available El presente artículo tiene como objetivo central explorar las tendencias que en el siglo XXI están revolucionando la práctica del mercadeo en las organizaciones. Para ello se caracteriza, en términos generales, el concepto de mercadotecnia, así como, la evolución de la misma desde sus inicios. Posteriormente se consideran los cambios tecnológicos, sociales y de mercado que han surgido en los inicios del milenio, para finalmente identificar las tendencias y desafíos a los cuales se enfrentan las organizaciones. Con la finalidad de recopilar la información se realizó una revisión bibliográfica y documental. Se concluye que las tendencias de la mercadotecnia se orientan al abandono del pensamiento de masas a favor de una participación individualizada con los clientes, en la cual se les trate de una forma muy personal, reconociendo sus intereses y necesidades y creándose un vínculo permanente que no sólo promueva las ventas presentes sino que garantice las ventas futuras de la compañía. Asimismo el estudio reveló que entre los retos más importantes a los que se tienen que enfrentar las organizaciones, están la globalización, la cambiante economía mundial, el auge de la tecnología de la información y la exigencia de una mayor responsabilidad ética y social, lo que implica la necesidad de darle un valor agregado al producto que siga siendo atractiva para el mercado.

  16. Construcción con tierra en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Bestraten, S.

    2011-09-01

    Full Text Available Earthen construction during the 21rst century first decade has resurfaced worldwide as a sustainable, low environmental impact and great expressive material. The research and the number of projects has been increased related to the growth of the associations, institutions, universities and events surrounding this sector. These projects have managed to modernize the traditional techniques of building with earth in order to adapt them to today’s projecting needs, and have been widely recognized for its quality. The aim of this article is to provide a global view on earth construction internationally, providing technical data of its utilization in contemporary architectural projects.

    La construcción con tierra durante la primera década del siglo XXI ha resurgido en todo el mundo como un material con propiedades sostenibles, de bajo impacto ambiental y de gran capacidad expresiva. Se ha experimentado un crecimiento a nivel de proyectos e investigaciones sobre el material relacionado con el aumento de número de asociaciones, instituciones, universidades y eventos alrededor de este sector. Los proyectos actuales han sabido modernizar las técnicas tradicionales de construcción con tierra para adaptarlas a las necesidades proyectuales y constructivas, siendo ampliamente reconocidos por su calidad. El objetivo de este artículo es ofrecer una visión actual sobre la construcción con tierra a nivel internacional, aportando datos técnicos de su utilización en proyectos arquitectónicos contemporáneos.

  17. Testing and Fielding of the Panther Tank and Lessons for Force XXI

    Science.gov (United States)

    1997-01-01

    decided that the following solution be adopted: the construction of the Tiger Tank , a tank of some 60 tons, which had recently been started would...to minimize the German advantages of the Panther. The Russians learned quickly that charging at the new Panthers (and Tiger tanks as well), and then...vehicle powerful enough to pull a Panther was another Panther or a Tiger tank . Without another tank stopping to retrieve the disabled vehicle, the

  18. Battle Staff Training System II: Computer-Based Instruction Supporting the Force XXI Training Program

    National Research Council Canada - National Science Library

    Wampler, Richard

    1998-01-01

    This report documents the methodology and lessons learned in the development of the Innovative Tools and Techniques for Brigade and Below Staff Training II - Battle Staff Training System II (ITTBBST-BSTS II...

  19. Human Dimensions Assessment of the Task Force XXI Advanced Warfighter Experiment

    National Research Council Canada - National Science Library

    Bliese, Paul

    1998-01-01

    .... By monitoring this process, key decision makers are better able to determine the extent to which observed outcomes are due to new technology, per se, or are the by-product of changes in the work...

  20. Proceedings of 5. international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century'. Pt. 1

    International Nuclear Information System (INIS)

    Kundas, S.P.; Okeanov, A.E.; Shevchuk, V.E.

    2005-05-01

    The first part of proceedings of the fifth international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century', which was held in the International A. Sakharov Environmental University, contents materials on topics: socio-ecological problems, medical ecology, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  1. Azpiazu, Daniel, La concentración en la industria argentina a principios del siglo XXI

    Directory of Open Access Journals (Sweden)

    Patricia Jerez

    2013-01-01

    Full Text Available Azpiazu, Daniel, La concentración en la industria argentina a principios del siglo XXI, Buenos Aires, Cara o Ceca/Centro Cultural de la Cooperación Floreal Gorini/Editorial Atuel, 2011 (148 págs.

  2. Cognitive mechanisms underlying disorganization of thought in a genetic syndrome (47,XXY)

    NARCIS (Netherlands)

    Van Rijn, Sophie; Aleman, Andre; De Sonneville, Leo; Swaab, Hanna

    Because of the risk for development of psychopathology such as psychotic symptoms, it has been suggested that studying men with the XXY karyotype may help in the search for underlying cognitive, neural and genetic mechanisms. The aim of this study was to identify cognitive mechanisms that may

  3. Social Function in Multiple X and Y Chromosome Disorders: XXY, XYY, XXYY, XXXY

    Science.gov (United States)

    Visootsak, Jeannie; Graham, John M., Jr.

    2009-01-01

    Klinefelter syndrome (47,XXY) was initially described in the context of its endocrinologic and physical features; however, subsequent studies have revealed specific impairments in verbal skills and social functioning. Males with sex chromosomal aneuploidies are known to have variability in their developmental profile with the majority presenting…

  4. Prepubertal unilateral gynecomastia and the presence of 47,XXY mosaicism in breast epithelial cells

    DEFF Research Database (Denmark)

    Andersen, Peter Stemann; Petersen, Bodil Laub; Juul, Anders

    2013-01-01

    , and sclerotherapy with Picibanil (OK-432) was attempted without any detectable effect on size. The mass was later excised. The pathological examination revealed mammary gland tissue suggestive of idiopathic gynecomastia. FISH revealed 47, XXY mosaicism in the abnormal breast epithelial cells, but not in peripheral...

  5. Proceedings of 7. international scientific conference 'Sakharov readings 2007: Ecological problems of XXI century'

    International Nuclear Information System (INIS)

    Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

    2007-05-01

    Abstracts of the seventh international scientific conference 'Sakharov readings 2007: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems, medical ecology, biomonitoring and bioindication, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  6. XXI sajandi muuseum : kas rahvusluse tempel või kaasaegne institutsioon? / Maria-Kristiina Soomre

    Index Scriptorium Estoniae

    Soomre, Maria-Kristiina, 1978-

    2006-01-01

    17. V Kumus toimunud avalikust püsiekspositsiooni diskussioonist "Milline peab olema XXI sajandi muuseumi ekspositsioon?". Arutelu teemad "Millist ajalugu me vajaksime?", "Kas Kumus on kohta kaasaegsele kunstile?", sõnastas Kumu kuraator Eha Komissarov, üritust modereeris Sirje Helme, paneelis osalesid Rael Artel, Marco Laimre, Ly Lestberg ja Leonhard Lapin

  7. XXI sajandil võib vabalt puhkeda demokraatia kriis / Jaan Kaplinski

    Index Scriptorium Estoniae

    Kaplinski, Jaan, 1941-

    2007-01-01

    Ilmunud ka: Delovõje Vedomosti 4. apr. lk. 12. Autor usub, et XXI sajand saab otsustavaks ajaks nii inimsoo kui ka demokraatia jätkusuutlikkusele. Pole võimatu, et elatustaseme langus ja suure osa inimeste võimetus sellega leppida ning leida võimalus ka kasinates tingimustes hästi elada võib viia demokraatia kriisile

  8. Good research practices for measuring drug costs in cost-effectiveness analyses: a societal perspective: the ISPOR Drug Cost Task Force report--Part II.

    Science.gov (United States)

    Garrison, Louis P; Mansley, Edward C; Abbott, Thomas A; Bresnahan, Brian W; Hay, Joel W; Smeeding, James

    2010-01-01

    Major guidelines regarding the application of cost-effectiveness analysis (CEA) have recommended the common and widespread use of the "societal perspective" for purposes of consistency and comparability. The objective of this Task Force subgroup report (one of six reports from the International Society for Pharmacoeconomics and Outcomes Research [ISPOR] Task Force on Good Research Practices-Use of Drug Costs for Cost Effectiveness Analysis [Drug Cost Task Force (DCTF)]) was to review the definition of this perspective, assess its specific application in measuring drug costs, identify any limitations in theory or practice, and make recommendations regarding potential improvements. Key articles, books, and reports in the methodological literature were reviewed, summarized, and integrated into a draft review and report. This draft report was posted for review and comment by ISPOR membership. Numerous comments and suggestions were received, and the report was revised in response to them. The societal perspective can be defined by three conditions: 1) the inclusion of time costs, 2) the use of opportunity costs, and 3) the use of community preferences. In practice, very few, if any, published CEAs have met all of these conditions, though many claim to have taken a societal perspective. Branded drug costs have typically used actual acquisition cost rather than the much lower social opportunity costs that would reflect only short-run manufacturing and distribution costs. This practice is understandable, pragmatic, and useful to current decision-makers. Nevertheless, this use of CEA focuses on static rather than dynamic efficacy and overlooks the related incentives for innovation. Our key recommendation is that current CEA practice acknowledge and embrace this limitation by adopting a new standard for the reference case as one of a "limited societal" or "health systems" perspective, using acquisition drug prices while including indirect costs and community preferences. The

  9. ¿ES VIABLE EL CONDUCTISMO EN EL SIGLO XXI? / IS BEHAVIORISM VIABLE IN THE XXI CENTURY?

    Directory of Open Access Journals (Sweden)

    Telmo Eduardo Peña Correal*

    2010-08-01

    Full Text Available RESUMENSe hace una revisión conceptual sobre el conductismo en la cual se discuten sus principales características, con elobjetivo de determinar su viabilidad como propuesta para la psicología del siglo XXI. A partir del supuesto de que elconductismo no es una teoría unificada de la psicología, sino una filosofía de esta disciplina, se presentan los tópicos sobrelos cuales hay mayor coincidencia entre los conductistas, a saber, la idea de que la psicología es una ciencia natural, que esuna ciencia empírica, que intenta generar un conocimiento en el que se controlen los sesgos subjetivistas (objetividad yfinalmente que utiliza en la tarea investigativa de forma preferente la metodología experimental. Se señalan igualmentealgunos tópicos sobre los cuales hay debate entre los conductistas, tales como el nivel de molecularidad o molaridad en elanálisis, la necesidad o no de factores mediadores y el uso de la investigación ideográfica vs la investigación nomotética.El trabajo concluye señalando cómo algunos de los conceptos más conocidos como «estímulo», «respuesta»,«condicionamiento» entre otros, no son esenciales al conductismo y eventualmente podrían ser reemplazados por otros.ABSTRACTA conceptual review of Behaviorism is presented in which its main features are discussed with the purpose of assessingits viability as a proposal for the XXIth century. Based on the premise that behaviorism is not a unified theory of psychology,but a philosophy of this science, some of the topics on which there is greater coincidence between the behaviourists arepresented, namely the assumption that psychology is a natural and empirical science, which attempts to generate knowledgein which subjectivistic biases (objectivity are controlled and finally that it prefers the experimental methodology in theirempirical studies. Also are brought some topics on which there is debate among the behaviorists, such as the level ofmolecularity or

  10. Profesionales de Enfermería para el siglo XXI

    Directory of Open Access Journals (Sweden)

    Inés Durana Samper

    1992-09-01

    Full Text Available

    Conferencia dictada en el Hospital Infantil Lorencita Villegas de Santos por la doctora Inés Durana Samper.

    Considero un honor y un privilegio compartir con ustedes algunos de los retos de Enfermería Profesional en el campo pediátrico y de salud familiar comunitaria, para su liderazgo en el Hospital Infantil.

    He dividido mi presentación en dos partes. En la primera hago una breve reflexión sobre la evolución y afloramiento de nuestros conocimientos inherentes al ejercicio de la enfermería clínica. En la segunda parte, me proyecto al futuro mostrando un nuevo perfil que confió encuentre eco en las generaciones jóvenes a quienes les corresponde hacer la transición en el siglo XXI.

    Evolución, Oportunidades y Retos

    En la actualidad y en especial al interior de enfermería hospitalaria se atravieza por una gran crisis, en valores, en asuntos económicos, en condiciones de trabajo y otros que merecen nuestra atención colegiada para su solución.

    Para explicarla me atrevo a remontarme y analizar un proceso histórico documentado durante mis estudios para obtener el doctorado. Según Fridson, (1, 1970 sociológo dedicado al análisis de las profesiones, Enfermería y Medicina escogieron rutas diferentes para su desarrollo ocupacional. Medicina en la década del 30 y bajo los efectos de la gran depresión económica, desarrolló sus especialidades clínicas en base a la práctica surgida con el comienzo del internado rotando por los servicios tradicionales de medicina, cirugía, pediatría y obstetricia.

    Esto contribuyó a que en el seno de los hospitales surgieran otras carreras como apoyo a esas especialidades, campo ocupado casi con exclusividad hasta entonces por· Enfermería; del fisiatra y neumólogo, se formaron las terapias; del patólogo las bacteriólogas. También la introducción de alta tecnología desarrolló una gama de

  11. Density dependent forces and large basis structure models in the analyses of 12C(p,p') reactions at 135 MeV

    International Nuclear Information System (INIS)

    Bauhoff, W.; Collins, S.F.; Henderson, R.S.

    1983-01-01

    Differential cross-sections have been measured for the elastic and inelastic scattering of 135 MeV protons from 12 C. The data from the transitions to 9 select states up to 18.3 MeV in excitation have been analysed using a distorted wave approximation with various microscopic model nuclear structure transition densities and free and density dependent two nucleon t-matrices. Clear signatures of the density dependence of the t-matrix are defined and the utility of select transitions to test different attributes of that t-matrix when good nuclear structure models are used is established

  12. Proceedings of 8. international scientific conference 'Sakharov readings 2008: Ecological problems of XXI century'; Materialy 8-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2008 goda: Ehkologicheskie problemy XXI veka'

    Energy Technology Data Exchange (ETDEWEB)

    Kundas, S P; Mel' nov, S B; Poznyak, S S [International A. Sakharov environmental univ., Minsk (Belarus)

    2008-05-15

    The proceedings of the eighth international scientific conference 'Sakharov readings 2008: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems in the light of ideas of academic A. Sakharov; medical ecology; bioecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology; ecological management; ecological monitoring; ecological education, education for sustainable development; ecological ethics in bioethics education system; problems and prospects of renewable energetics development in Belarus. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  13. Perspektive promidžbe u XXI. stoljeću

    OpenAIRE

    Haramija, Predrag; Njavro, Đuro; Propat Darrer, Jagoda

    2012-01-01

    Otkriće i primjena novih postupaka u promidžbi ovisna je o dvjema vrstama silnica; s jedne strane, o novim tehničkim ili tehnološkim otkrićima glede sredstava komunikacije, a s druge strane o novim situacijama odnosno okolnostima u gospodarskome i društvenom okružju. U radu se prikazuje dosadašnji razvoj i istražuju moguće dominantne tendencije promidžbe u XXI. stoljeću. Početak XXI. stoljeća obilježava zasićenost potrošača mnoštvom promidžbenih poruka i sve veće nepovjerenje u njih, s...

  14. Peripheral conversion and uptake of androgens in a XXY-man with Klinefelter's syndrome

    International Nuclear Information System (INIS)

    Sulcova, J.; Jirasek, J.E.; Neuwirth, J.; Raboch, J.; Starka, L.

    1978-01-01

    The conversion of 3 H-testosterone and the uptake of 3 H-testosterone and 3 H-5α-dihydrotestosterone were investigated in pubic skin and pubic hair follicles of a XXY-man with inadequate pubic hair. The uptake of both androgens was demonstrated in the skin as well as in the hair follicles. Similarly the activity of steroid 5α-reductase was present in both tissues. The total conversion of 3 H-testosterone was 2-3 times higher in the patient than in control persons. In the XXY-man the major metabolites were 5α- and 5β-androstanediols, whereas in the normal men 5α-dihydrotestosterone and 4-androstenedione were mainly formed from testosterone. An explanation of the inadequate growth of pubic hair in our patient seems to be related to a conversion of testosterone - at its low plasma level - to its relatively inactive metabolites. (author)

  15. The Manager's Human Communication in the Organizations of the XXI Century

    Directory of Open Access Journals (Sweden)

    Olga Vargas Cordero

    2017-08-01

    Full Text Available The article offers the results of a quantitative study on the manager's human communication in organizations of the XXI century, supported by the epistemic principle of complementarity, coaching tools (360° Feedback and Wheel of Life and unstructured interview to six managers of CORPOELEC, to reveal how it interacts both horizontally and vertically and to identify communication barriers from the manager's ontological element. The research findings point to the presence of cultural and psychosocial communication barriers that impact interactions (senior manager-manager, manager-manager and manager-subordinate. For this reason, among other guidelines, Ontological Coaching is recommended to develop a person manager with competences of human communication, personal valuation and management of differences that humanize the communication in the organization of the XXI century.

  16. Proceedings of 6. international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century'. Pt. 1

    International Nuclear Information System (INIS)

    Kundas, S.P.; Okeanov, A.E.; Poznyak, S.S.

    2006-05-01

    The first part of proceedings of the sixth international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems, medical ecology, biomonitoring and bioindication, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  17. Proceedings of 5. international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century'. Pt. 2

    International Nuclear Information System (INIS)

    Kundas, S.P.; Okeanov, A.E.; Shevchuk, V.E.

    2005-05-01

    The first part of proceedings of the fifth international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century', which was held in the International A. Sakharov Environmental University, contents materials on topics: radioecology, ecological and radiation monitoring, new information systems and technologies in ecology, priority ecological power engineering, management in ecology, ecological education. The proceedings are intended for specialists in field of ecology and related sciences, dosimetry, engineers, teachers, students and post-graduate students

  18. Educación superior de calidad para el siglo XXI

    Directory of Open Access Journals (Sweden)

    Alexander Vega Miranda

    2001-01-01

    Full Text Available Este artículo tiene como objetivo presentar de modo explícito la serie de opciones ideológicas y pedagógicas que, dentro del contexto costarricense, deben ser tenidas en cuenta por la persona encargada de tomar las decisiones, cuando intente mejorar la calidad de la educación para enfrentar los retos del siglo XXI

  19. Proceedings of 6. international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century'. Pt. 2

    International Nuclear Information System (INIS)

    Kundas, S.P.; Okeanov, A.E.; Poznyak, S.S.

    2006-05-01

    The second part of proceedings of the sixth international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: radioecology, environmental monitoring, information systems and technologies in ecology, ecological priority energy engineering, ecological management and ecological education. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  20. Design of an Image-Servo Mask Alignment System Using Dual CCDs with an XXY Stage

    Directory of Open Access Journals (Sweden)

    Chih-Jer Lin

    2016-02-01

    Full Text Available Mask alignment of photolithography technology is used in many applications, such as micro electro mechanical systems’ semiconductor process, printed circuits board, and flat panel display. As the dimensions of the product are getting smaller and smaller, the automatic mask alignment of photolithography is becoming more and more important. The traditional stacked XY-Θz stage is heavy and it has cumulative flatness errors due to its stacked assembly mechanism. The XXY stage has smaller cumulative error due to its coplanar design and it can move faster than the traditional XY-Θz stage. However, the relationship between the XXY stage’s movement and the commands of the three motors is difficult to compute, because the movements of the three motors on the same plane are coupling. Therefore, an artificial neural network is studied to establish a nonlinear mapping from the desired position and orientation of the stage to three motors’ commands. Further, this paper proposes an image-servo automatic mask alignment system, which consists of a coplanar XXY stage, dual GIGA-E CCDs with lens and a programmable automatic controller (PAC. Before preforming the compensation, a self-developed visual-servo provides the positioning information which is obtained from the image processing and pattern recognition according to the specified fiducial marks. To obtain better precision, two methods including the center of gravity method and the generalize Hough Transformation are studied to correct the shift positioning error.

  1. Que se enteren: cuerpo y sexualidad en el zoom social. Sobre XXY Them to know: body and sexuality in the social zoom. About XXY

    Directory of Open Access Journals (Sweden)

    Mariana Viera Cherro

    2011-08-01

    Full Text Available El presente trabajo toma como excusa narrativa la película argentina XXY para discutir algunos aspectos que se plantean en la misma en torno a la construcción socio cultural del cuerpo sexuado y cómo ello incide en las maneras personales de experimentar el cuerpo y la sexualidad teniendo como eje de análisis el concepto de "estigma". La existencia de largometrajes como el citado pone en el horizonte social un debate que desde una perspectiva feminista se vuelve trascendente si consideramos que las producciones cinematográficas son una manera del decir social, de imponer normas en relación a lo posible y lo imposible, en este caso sobre la constitución del sujeto sexuado.This work takes as a narrative excuse the Argentinean film XXY to discuss some aspects the film brings to the fore about the social and cultural construction of the sexual body, and how this construction has implications in the particular ways to experience the body and sexuality. The pivot of this analysis will be the concept of "stigma". The existence of this kind of film raises debate which, from a feminist perspective, has a vital meaning if we consider that filmic productions impose norms about what is possible and what is not, in this case about the constitution of a sexed subject.

  2. O Poder Aéreo no Século XXI

    Directory of Open Access Journals (Sweden)

    Flávio Pedroso Mendes

    2013-08-01

    In face of the recent enthusiasm regarding Air Power as an instrument for settling international political disputes, born out of technological developments and political transformations after the Cold War, this article critically evaluates some contemporary theoretical expressions about the potential of aerial means of force, focusing on the work of John A. Warden III (1989. It will be demonstrated the continuity of notions that date back to the origins of military aviation theorization, in the beginning of the 20th Century, as well as their inherent problems and limitations.

  3. THE ADAPTATION OF THE US ARMY TO THE BATTLEFIELD OF THE XXI ST CENTURY

    Directory of Open Access Journals (Sweden)

    GUILLEM COLOM PEILLA

    2017-12-01

    Full Text Available Since the fall of the Berlin Wall, the U.S. Army has undertaken significant changes in its military thought, strategic planning, doctrinal foundations, weapon systems and organizational structures in order to achieve the Revolution of Military Affairs that promised to change the art of war; to adapt its forces to the post-Cold War strategic environment; to face uncertain future challenges and, now, to overcome the operational requirements stemming from its involvement in Afghanistan and Iraq. This article analyses the transformations carried out by the U.S. Army in its force structure and capabilities catalog from 1991 to the present day.

  4. La evolución del juego de ataque en balonmano. Revisión histórica: Los inicios del Siglo XXI.

    Directory of Open Access Journals (Sweden)

    Juan de Dios Román Seco

    2009-12-01

    XXI, Evolución, Ataque, Deporte Espectáculo.   Abstract Modern sport evolves quickly in a supra-sport context according to the demands of the show. This has forced in certain moments to introduce norms in order to get an attractive game that responds to the complex demands of the marketing and sale of the product. Handball, though a relatively young sport, can not be far from the competitive market, sport promotion, the television, media, spectators, etc. Professionalization was the best way to improve habits in favor of the show. Specialists, managers of elite players and those  new to the game,  should not forget the roots, the bases and the historical evolution of the offensive aspect of this sport. The knowledge of these should be good to contribute creative ideas that enrich, if it's possible the dynamism, intelligence and competitiveness of handball.   This article is a review of  the  work published  in the volume two of this journal,  “The beginnings of the XXI century: evolution and tendencies of the game”. Key words: Handball, XXI Century, Evolution, Attacks, Show.

  5. Analyses and estimates of hydraulic conductivity from slug tests in alluvial aquifer underlying Air Force Plant 4 and Naval Air Station-Joint Reserve Base Carswell Field, Fort Worth, Texas

    Science.gov (United States)

    Houston, Natalie A.; Braun, Christopher L.

    2004-01-01

    This report describes the collection, analyses, and distribution of hydraulic-conductivity data obtained from slug tests completed in the alluvial aquifer underlying Air Force Plant 4 and Naval Air Station-Joint Reserve Base Carswell Field, Fort Worth, Texas, during October 2002 and August 2003 and summarizes previously available hydraulic-conductivity data. The U.S. Geological Survey, in cooperation with the U.S. Air Force, completed 30 slug tests in October 2002 and August 2003 to obtain estimates of horizontal hydraulic conductivity to use as initial values in a ground-water-flow model for the site. The tests were done by placing a polyvinyl-chloride slug of known volume beneath the water level in selected wells, removing the slug, and measuring the resulting water-level recovery over time. The water levels were measured with a pressure transducer and recorded with a data logger. Hydraulic-conductivity values were estimated from an analytical relation between the instantaneous displacement of water in a well bore and the resulting rate of head change. Although nearly two-thirds of the tested wells recovered 90 percent of their slug-induced head change in less than 2 minutes, 90-percent recovery times ranged from 3 seconds to 35 minutes. The estimates of hydraulic conductivity range from 0.2 to 200 feet per day. Eighty-three percent of the estimates are between 1 and 100 feet per day.

  6. Challenges and goals for accelerators in the XXI century

    CERN Document Server

    Brüning, Oliver

    2016-01-01

    The past 100 years of accelerator-based research have led the field from first insights into the structure of atoms to the development and confirmation of the Standard Model of physics. Accelerators have been a key tool in developing our understanding of the elementary particles and the forces that govern their interactions. This book describes the past 100 years of accelerator development with a special focus on the technological advancements in the field, the connection of the various accelerator projects to key developments and discoveries in the Standard Model, how accelerator technologies open the door to other applications in medicine and industry, and finally presents an outlook of future accelerator projects for the coming decades.

  7. Forces in General Relativity

    Science.gov (United States)

    Ridgely, Charles T.

    2010-01-01

    Many textbooks dealing with general relativity do not demonstrate the derivation of forces in enough detail. The analyses presented herein demonstrate straightforward methods for computing forces by way of general relativity. Covariant divergence of the stress-energy-momentum tensor is used to derive a general expression of the force experienced…

  8. Século XXI: nova cultivar de goiabeira de dupla finalidade XXI Century: new cultivar of guava tree to double purpose

    Directory of Open Access Journals (Sweden)

    Fernando Mendes Pereira

    2003-12-01

    Full Text Available A goiabeira (Psidium guajava L. é uma espécie que vem se tornando de grande importância em diversas regiões do Brasil, principalmente no Estado de São Paulo, maior produtor nacional. Desde 1985, a UNESP/FCAV, Câmpus de Jaboticabal, vem desenvolvendo um programa de melhoramento genético da goiabeira, com o objetivo de obter plantas com boas características agronômicas e com frutos que possam ser destinados tanto à industrialização quanto ao consumo na forma de fruta fresca. Partindo-se de 219 plantas, oriundas de diversos cruzamentos, e após dez anos de avaliação, chegou-se à cultivar Século XXI, cujas principais características são: planta muito produtiva com ciclo precoce (130 dias da floração à colheita, frutos grandes, com polpa espessa, róseo-avermelhada, ótimo sabor e com poucas e pequenas sementes.The guava tree (Psidium guajava, L. is a species that is coming into being of great importance in several areas of Brazil, mainly in State of São Paulo, its biggest national producer. Since 1985, the UNESP/FCAV, Jaboticabal Campus comes developing a program of breeding of guava tree, with the objective of obtaining plants with good agronomic characteristics and fruits that can be destined for industrialization and consumption as fresh fruit. From 219 plants originating from several crossing, and after ten years of evaluation, it has been obtained the XXI Century cultivar, which main characteristics are: a very productive plant with precocious cycle (130 days from the blossom to the harvest, big fruits with thick pulp, rosy-red, great flavor and with little and small seeds.

  9. Las mujeres indígenas venezolanas y sus logros en los albores del Siglo XXI

    OpenAIRE

    Rincón-Soto, Lucía del Carmen

    2014-01-01

    El artículo ofrece un recuento del paradigmático proceso de empoderamiento de las indígenas venezolanas y un balance de cómo su pensamiento se ha articulado para fortalecer su identidad. Se realiza un breve recorrido de la situación de las mujeres desde el proceso de colonización hasta los albores del siglo XXI. Si bien las mujeres indígenas latinoamericanas, en general, y las venezolanas, en particular, tienen muchos desafíos, no se puede dejar de destacar su valiosa participación en los esc...

  10. The Reasons for Activisation of Separatism Movements in Xinjiang Later in XX and XXI Centuries

    Directory of Open Access Journals (Sweden)

    Анна Сергеевна Мавлонова

    2014-12-01

    Full Text Available The article includes analysis of the main reasons for activization of separatism movements in Xinjiang later in XX and earlier in XXI centuries. The author comes into conclusion that the following reasons caused the process of active politicization of ethnicity in Central Asian region and wide territories of Xinjiang: changes in the territory of former Soviet Union countries; economic recession in former Soviet Union countries which led to activization of radical movements; economic reforms in China leading to liberalization of social and political spheres; influence of external global factors. The mentioned changes resulted in serious activization of separatist tendencies which was not the case in earlier periods.

  11. La premsa valenciana en la primera dècada del segle XXI

    OpenAIRE

    Martínez Sanchis, Francesc; González i Montserrat Jurado, José Luis; Doménech Fabregat, Hugo

    2011-01-01

    La premsa valenciana d'informació general en la primera dècada del segle XXI es caracteritza per l'aposta multimèdia dels grans diaris regionals, el domini del castellà com a llengua de comunicació i una forta expansió deis periódics gratuïts impresos i els diaris digitals. La premsa actual continua tenint la província com a límit. No hi ha una premsa regional de forta implantació en tot el territori valencià. In the first decade of the 21st century, the Valencia...

  12. Equipos estratégicos: Una alternativa para las empresas del siglo XXI

    Directory of Open Access Journals (Sweden)

    Francisco Batlle

    2007-05-01

    Full Text Available En este artículo se analiza la evolución de los grupos de trabajo a equipos estratégicos como respuesta a la necesidad de permear el pensamiento estratégico en todos los niveles de la organización; se caracteriza el equipo en atención a sus valores, misión y la sinergia resultante de un liderazgo compartido y resonante. Se concluye, luego del análisis de los diferentes tipos de equipos, con la propuesta de los equipos autodirigidos como una alternativa para las empresas del siglo XXI.

  13. Equipos estratégicos: Una alternativa para las empresas del siglo XXI

    OpenAIRE

    Francisco Batlle; Keila Gómez

    2007-01-01

    En este artículo se analiza la evolución de los grupos de trabajo a equipos estratégicos como respuesta a la necesidad de permear el pensamiento estratégico en todos los niveles de la organización; se caracteriza el equipo en atención a sus valores, misión y la sinergia resultante de un liderazgo compartido y resonante. Se concluye, luego del análisis de los diferentes tipos de equipos, con la propuesta de los equipos autodirigidos como una alternativa para las empresas del siglo XXI.

  14. Proceedings of 8. international scientific conference 'Sakharov readings 2008: Ecological problems of XXI century'

    International Nuclear Information System (INIS)

    Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

    2008-05-01

    The proceedings of the eighth international scientific conference 'Sakharov readings 2008: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems in the light of ideas of academic A. Sakharov; medical ecology; bioecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology; ecological management; ecological monitoring; ecological education, education for sustainable development; ecological ethics in bioethics education system; problems and prospects of renewable energetics development in Belarus. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  15. La producción de enfermedad en el paradigma de la salud del siglo XXI

    OpenAIRE

    Rodríguez Zoya, Paula G.

    2013-01-01

    Este trabajo pone en relación el imperativo de cuidado del cuerpo y la salud paraalcanzar una salud perfecta y el fenómeno de expansión de la medicalización a travésde la invención de enfermedades. La tesis central sostiene que la imbricación de ambosfenómenos constituye los fundamentos del paradigma sanitario que se arraiga en lassociedades occidentales del siglo XXI. La investigación problematiza la articulaciónde dichos fenómenos a partir de la circulación social de significaciones en torn...

  16. The Spanish "Century XXI" academy for developing elite level basketballers: design, monitoring and training methodologies.

    Science.gov (United States)

    Calleja-González, Julio; Mielgo-Ayuso, Juan; Lekue, José Antonio; Leibar, Xabier; Erauzkin, Julen; Jukic, Igor; Ostojic, Sergej M; Delextrat, Anne; Sampaio, Jaime; Terrados, Nicolás

    2016-01-01

    The XXI Century Academy was a 6-year state-initiated intervention program that served as an alternative to basketball clubs for players in the u-14 and u-18 age groups in Spain, under guidelines established by the Spanish Basketball Federation. It was an important and unique project on talent development in basketball. To the best of the authors' knowledge, no evidence has been reported on long-term athlete development programs in basketball worldwide. The main aim of this report is to describe the design and evaluation methods used for the XXI Century Academy as a long-term intervention program in the elite Spanish Basketball Academy, aiming to prepare basketball players to compete at the elite level. The monitoring time lasted from 1996 to 2001. A total of 55 players were assigned to the intervention groups based on age, position, maturation level, and country of origin. During this process, participants competed in up to two categories in addition to playing competitive official matches worldwide in international tournaments in their categories and with the national team in the European and World Championships (u-14 - u-18). Participants included 1 NBA player, 3 national A Team players, 10 ACB (First Spanish League) players, 5 LEB (second League) players and 39 LEB-2 EBA (third League) players. Assessments took place in a High-Performance Sports Center (CPT FADURA-GETXO- Basque Government, Getxo, Vizcaya, Spain) and consisted of health questionnaires, anthropometric measures, blood parameters, maturation level, birth age, fitness tests, training volume and intensity, physical activity, technical and tactical training, dietary intake, supplementation and injuries. Each player was assessed 4 times per year (September, December, April, June) for 4 years (16 data points). This is a purely methodological paper describing the design and evaluation methods used in the XXI Century Project, which will be used as a basis for future reporting of results. Therefore, the

  17. Sexismo en la publicidad gráfica del siglo XXI

    OpenAIRE

    Lesmes Fradejas, Yanire

    2014-01-01

    En la presente investigación se ha tratado el tema de la representación de la mujer estereotipada en la publicidad gráfica del siglo XXI. La publicidad hoy en día sigue teniendo rasgos sexistas y es lo que se ha querido demostrar mediante el análisis de varias gráficas debidamente clasificadas por categorías de productos donde la novedad recae sobre el análisis de publicidad con fines sociales y contra la violencia de género, encontrando en estas también signos de sexismo. Asimismo y bajo la ...

  18. ATLAS “RUSSIAN ARCTIC IN XXI CENTURY: NATURAL CHALLENGES AND RISKS OF DEVELOPMENT”

    Directory of Open Access Journals (Sweden)

    N. A. Alekseevskiy

    2013-01-01

    Full Text Available  The huge investigation of Arctic region of Russia was performed by team of researchers from Faculty of Geography of Lomonosov Moscow State University. This investigation resulted in creation of atlas “Russian Arctic in XXI century: natural challenges and risks of development”. In the first place this atlas was made for pupils and school teachers, letting them study modern features of natural environment and socio-economical processes. Atlas contains 7 sections, including both natural and socio-economical maps.

  19. Proceedings of 5. international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century'. Pt. 1; Materialy 5-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2005 goda: Ehkologicheskie problemy XXI veka'. Ch. 1

    Energy Technology Data Exchange (ETDEWEB)

    Kundas, S P; Okeanov, A E [International A. Sakharov environmental univ., Minsk (Belarus); Shevchuk, V E [Kamiteht pa prablemam nastupstvaw katastrofy na Charnobyl' skaj AEhS pry Savetse Ministraw Rehspubliki Belarus' , Minsk (Belarus)

    2005-05-15

    The first part of proceedings of the fifth international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century', which was held in the International A. Sakharov Environmental University, contents materials on topics: socio-ecological problems, medical ecology, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  20. Ovotesticular disorder of sexual development and a rare 46,XX/47,XXY karyotype.

    Science.gov (United States)

    Ozsu, Elif; Mutlu, Gul Yesiltepe; Cizmecioglu, Filiz M; Ekingen, Gülsen; Muezzinoglu, Bahar; Hatun, Sukru

    2013-01-01

    Ovotesticular disorder of sexual development (DSD) is characterized by the presence of both ovarian and testicular tissues in the same individual. The most common karyotype is 46,XX. Here, we report the case of a boy with a 46,XX/47,XXY karyotype diagnosed as ovotesticular DSD by gonadal biopsy. A 5-month-old boy presented with hypospadias, unilateral cryptorchidism, and a micropenis. Pelvic magnetic resonance imaging revealed a suspicious gonad tissue that is solid in structure in the right scrotum and a suspicious gonad that is cystic in structure in the left inguinal canal. He underwent a diagnostic laparoscopy. Cytogenetic analysis of peripheral blood revealed a 46,XX/47,XXY karyotype. Histopathologic examination of the left gonad showed ovarian tissue containing primordial follicles with ipsilateral undifferentiated tuba uterina. The right gonad showed immature testis tissue. He underwent left gonadectomy and hypospadias repair, and was raised as a male. Through this rare case, we highlight the importance of histological and cytogenetic investigation in DSD.

  1. A rare 47 XXY/46 XX mosaicism with clinical features of Klinefelter syndrome.

    Science.gov (United States)

    Mohd Nor, Noor Shafina; Jalaludin, Muhammad Yazid

    2016-01-01

    47 XXY/46 XX mosaicism with characteristics suggesting Klinefelter syndrome is very rare and at present, only seven cases have been reported in the literature. We report an Indian boy diagnosed as variant of Klinefelter syndrome with 47 XXY/46 XX mosaicism at age 12 years. He was noted to have right cryptorchidism and chordae at birth, but did not have surgery for these until age 3 years. During surgery, the right gonad was atrophic and removed. Histology revealed atrophic ovarian tissue. Pelvic ultrasound showed no Mullerian structures. There was however no clinical follow up and he was raised as a boy. At 12 years old he was re-evaluated because of parental concern about his 'female' body habitus. He was slightly overweight, had eunuchoid body habitus with mild gynaecomastia. The right scrotal sac was empty and a 2mls testis was present in the left scrotum. Penile length was 5.2 cm and width 2.0 cm. There was absent pubic or axillary hair. Pronation and supination of his upper limbs were reduced and x-ray of both elbow joints revealed bilateral radioulnar synostosis. The baseline laboratory data were LH XX[67] with SRY positive. Laparoscopic examination revealed no Mullerian structures. Insisting on an adequate number of cells (at least 50) to be examined during karyotyping is important so as not to miss diagnosing mosaicism.

  2. Restoration metropole XXI, as a problem solving between old potential to the future sustainability of values

    Science.gov (United States)

    Indra, M.

    2018-03-01

    Cinema Metropole XXI is one of the heritage buildings located in the heart of Menteng area, with “art deco” architecture. The appereance of this building is very beautiful and very impressed from other buildings, become strong Icon around the Menteng neighborhood. In 2010 the building was bought by Cinema 21, where the physical condition is very messy and looks slum. The emergence of modern shopping and entertainment centers are also complete with cinema facilities are more comfortable and complete, While the atmosphere of this old cinema is considered uncomfortable for visitors, so slowly abandoned by customers. The status of the cultural heritage inherent in this building becomes an obstacle by owners to renew this building, until the cinema closes in some time. The loss of the long-standing potential of cultural heritage buildings due to the transformation of urban development is an important issue in this paper, this case study is the author’s experience in regenerating the future potential at this heritage building. This writing is done by Descriptive Analysis method from various reference approaches and theory of cultural heritage values involved in the restoration of Metropole XXI cinema. The conclusions of this paper find a real solution to problem solving for the sustainability of this building.

  3. Vision Servo Motion Control and Error Analysis of a Coplanar XXY Stage for Image Alignment Motion

    Directory of Open Access Journals (Sweden)

    Hau-Wei Lee

    2013-01-01

    Full Text Available In recent years, as there is demand for smart mobile phones with touch panels, the alignment/compensation system of alignment stage with vision servo control has also increased. Due to the fact that the traditional stacked-type XYθ stage has cumulative errors of assembly and it is heavy, it has been gradually replaced by the coplanar stage characterized by three actuators on the same plane with three degrees of freedom. The simplest image alignment mode uses two cameras as the equipments for feedback control, and the work piece is placed on the working stage. The work piece is usually engraved/marked. After the cameras capture images and when the position of the mark in the camera is obtained by image processing, the mark can be moved to the designated position in the camera by moving the stage and using alignment algorithm. This study used a coplanar XXY stage with 1 μm positioning resolution. Due to the fact that the resolution of the camera is about 3.75 μm per pixel, thus a subpixel technology is used, and the linear and angular alignment repeatability of the alignment system can achieve 1 μm and 5 arcsec, respectively. The visual servo motion control for alignment motion is completed within 1 second using the coplanar XXY stage.

  4. PARADIGMAS CONTEMPORÂNEOS: O NAVIO NEGREIRO DO SÉCULO XXI / CONTEMPORARY PARADIGMS: THE SLAVE SHIP OF THE XXI CENTURY

    Directory of Open Access Journals (Sweden)

    Denis Henrique Schmeisch

    2015-04-01

    Full Text Available Human trafficking and slavery of human labor are not a recent phenomenon in the context of world history. The Trafficking of human lives is part of a logic of domination and bargaining, in which the life of an individual is exchanged for its freedom, or reducing a person to the condition of a thing that can be appropriated by others. Not limited only to trafficking, the “thingfication” of the other, which also occurs in the analogue slave labor which produces illness, causing funeral songs and it becomes the faces of these wretched, gloomy figures against villainy in the world. As speech development method was used Navio Negreiro of Castro Alves, as a basis for criticizing the perpetuation of man’s enslavement practice. It is observed that at the time the poet has denounced the hideous and vile practice, and we find ourselves today in the XXI century, living with the banalization of life. In the same way in that century the poet urged the intellectuals and the population to embrace the abolition of slavery, we find ourselves today in such situation that require a new abolitionist consciousness. Disposing the discussion at the national level, on the history and construction of the Brazilian legal system, it is worth to observe the necessity to create a new abolitionist movement. And in this sense, we ask as the poet did: “Why do you run away like that (...? Why to run away (...?”.

  5. Evolution in Intensity and Frequency of Extreme Events of Precipitation in Northeast Region and Brazilian Amazon in XXI Century

    Science.gov (United States)

    Fonseca, P. M.; Veiga, J. A.; Correia, F. S.; Brito, A. L.

    2013-05-01

    The aim of this research was evaluate changes in frequency and intensity of extreme events of precipitation in Brazilian Amazon and Northeast Region, doubling CO2 concentration in agreement of IPCC A2 emissions scenarios (Nakicenovic et al., 2001). For this evaluation was used ETA model (Chou et al., 2011), forced with CCSM3 Global model data (Meehl, 2006) to run 4 experiments, only for January, February and March: 1980-1990, 2000-2010, 2040-2050 and 2090-2100. Using the first decade as reference (1980-1990), was evaluated changes occurred in following decades, with a methodology to classify extremes events adapted from Frich (2002) and Gao (2006). Higher was the class, more intense is the event. An increase of 25% was observed in total precipitation in Brazilian Amazon for the end of XXI century and 12% for extreme events type 1, 9% for events type 2 and 10% for type 3. By the other hand, a 17% decrease of precipitation in Brazilian Northeast was observed, and a pronounced decay of 24% and 15% in extreme events contribution type 1 and 2 to total amount of precipitation, respectively. The difference between total normal type events was positive in this three decades compared with reference decade 1980-1990, varying positively from 4 to 6 thousand events included in normality by decade, these events was decreased in your majority of Class 1 events, which presented a decay of at least 3.500 events by each decade. This suggests an intensification of extreme events, considering that the amount of precipitation by class increased, and the number of events by class decreased. To Northeast region, an increasing in 9% of contribution to events type 3 class was observed, as well as in the frequency of this type of events (about of 700 more events). Major decreasing in number of classes extreme events occur in 2000-2010, to classes 1 and 3, with 7,2 and 5,6%, and by the end of century in class 3, with 4,5%. For the three analyzed decades a total decrease of 8.400 events was

  6. Globalizacion, seguridad y crisis. El papel de las fuerzas armadas en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Federico Aznar Fernández-Montesinos

    2015-06-01

    Full Text Available El siglo XXI es el siglo de la interconexión y la complejidad. Todo se encuentra interrelacionado, lo que ha obligado a incluir la Defensa en el marco de la Seguridad con el propósito de dar respuestas a los retos que plantea y que ya no son solo militares sino de toda índole, incluidas crisis y catástrofes. Las fuerzas Armadas pueden contribuir con gran eficacia a la hora de atender tales retos. La tendencia no es ya al conflicto entre naciones, sino a la defensa de la Seguridad Nacional e Internacional, lo que genera un enorme cambio en los medios, preparación y doctrina.

  7. LA CRISIS AMBIENTAL DEL MUNDO AL INICIAR EL SIGLO XXI: ELEMENTOS PARA SU ANÁLISIS

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    Hernán Burbano Orjuela

    2005-01-01

    Full Text Available Resulta evidente que al iniciar el siglo XXI los seres humanos asisten a un difícil episodio de sus relaciones con la naturaleza. Por ello es conveniente invitar al examen de esta situación para que, desde los diferentes escenarios de la sociedad mundial, se identifiquen sus causas –con sentido de historiay se visualicen las alternativas que permitan entrar en un proceso de resolución del problema. En el presente artículo se busca animar el análisis de la crisis ambiental que vive el mundo de hoy, tomando referentes culturales, científicos y socioeconómicos, que permitan hacer un balance de lo ocurrido y que, en simultánea, hagan posible encontrar caminos para salir de este estado de cosas.

  8. Gender perspective and the role of universities in the XXI century

    Directory of Open Access Journals (Sweden)

    Inmaculada LÓPEZ-FRANCÉS

    2015-01-01

    Full Text Available The article shows the emerging line of research and teaching being developed by the authors. It starts from the perceived needs of the students in two universities: the University of Valencia and the Autonomous University of the State of Morelos; data is collected through a questionnaire (designed ad hoc and validated and several discussion groups. The performance of teachers is considered a catalyst in the construction of new identities and ethical professionals capable of meeting the challenges of the XXI century. It explores and identifies some challenges to allow the development of teaching, research and management free of gender bias. It concludes by recognizing the interdependence and the need to care for cooperative action and networking in order to enable sustainable, equitable and reciprocal human development.

  9. Sakharov readings 2011: environmental problems of the XXI century. Proceedings of 11 international scientific conference

    International Nuclear Information System (INIS)

    Kundas, S.P.; Poznyak, S.S.

    2011-05-01

    The proceeding includes materials of reports of 11-th international scientific conference 'Sakharov readings 2011: Environmental problems of XXI century', which took place 19-20 of May 2011 in the International A. Sakharov Environmental University. The proceeding continues abstracts about social-ecological, ecology-ethical and pedagogical problems in light of the Sakharov' ideas; medical ecology; biological ecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology and medicine; ecological monitoring, management and audit; renewable energy sources and energy efficiency; climate change and sustainable development; regional ecological problems. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges.

  10. Sakharov readings 2009: Environmental problems of the XXI century. Proceedings of the 9 scientific conference

    International Nuclear Information System (INIS)

    Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

    2009-05-01

    Proceeding includes materials of reports of 9-ts international scientific conference 'Sakharov readings 2009: Environmental problems of XXI century', which took place 21-22 of May 2009 in the International Sakharov Environmental University. Represented materials were integrated to next parts: social-ecological and ecology-ethical problems; medical ecology; bio ecology; bio monitoring, bio indication and bioremediation; radioecology and radiation security; ecological informational systems and technologies; ecological monitoring, management and audit; resumption sources of energy and energy-saving technologies; problems of ecological education. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

  11. Sakharov readings 2013: environmental problems of the XXI century. Proceedings of the 13 international scientific conference

    International Nuclear Information System (INIS)

    Kundas, S.P.; Poznyak, S.S.; Lysukho, N.A.

    2013-05-01

    The proceeding includes materials of reports of 13-th international scientific conference 'Sakharov readings 2013: Environmental problems of XXI century', which took place 16-17 of May 2013 in the International A. Sakharov Environmental University (Minsk, Belarus). The proceeding continues abstracts about social-ecological and ecology-ethical problems of modern times; education for sustainable development; medical ecology; biological ecology; radiobiology; radioecology and radiation protection; information systems and technologies in ecology and medicine; regional ecological problems; ecological monitoring and management; renewable energy sources and energy efficiency. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges.

  12. Educación y Psicología en el Siglo XXI

    Directory of Open Access Journals (Sweden)

    Juan Enrique Fernández Romar

    2015-02-01

    Full Text Available Educación y Psicología en el Siglo XXI es un buen ejemplo de este tipo de recopilaciones y da cuenta al mismo tiempo del estado del arte de estas dimensiones en el Uruguay contemporáneo. Se trata de un libro que reúne la producción reciente más destacada de diez docentes de la Facultad de Psicología de la Universidad de la República, que trabajan en el Instituto de Psicología, Educación y Desarrollo Humano donde en su gran mayoría desarrollan prácticas integradoras de los procesos de enseñanza y creación de conocimiento con experiencias de extensión universitaria orientando su labor a una reconfiguración de todos los componentes del acto educativo. //

  13. O ensino privado em Pelotas na propaganda impressa: séculos XIX, XX, XXI

    OpenAIRE

    NEVES, Helena de Araujo

    2012-01-01

    Esta tese situa-se no âmbito da História da Educação, vinculada à linha de Filosofia e História da Educação do Programa de Pós-Graduação em Educação da universidade Federal de Pelotas. Seu objetivo foi pesquisar a trajetória do ensino privado em Pelotas, município localizado ao sul do Rio Grande do Sul, no período compreendido entre o final do século XIX e o principio do século XXI. Para isso, utilizou como principal fonte documental propagandas impressas das escolas privadas de ensino primár...

  14. Sakharov readings 2015: environmental problems of the XXI century. Proceedings of the 15 international scientific conference

    International Nuclear Information System (INIS)

    Poznyak, S.S.; Lysukho, N.A.

    2015-05-01

    The proceeding includes materials of reports of 15-th international scientific conference 'Sakharov readings 2015: Environmental problems of XXI century', which took place 21-22 of May 2015 in the International A. Sakharov Environmental University (Minsk, Belarus). The proceeding continues abstracts about philosophical, social-ecological nd bioethical and problems of modernity; education for sustainable development; medical ecology; biological ecology; radiobiology; radioecology and radiation protection; information systems and technologies in ecology and medicine; regional environmental problems; ecological monitoring and management; renewable energy sources and energy efficiency. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

  15. La encrucijada de Manuela Sáenz en el imaginario cultural latinoamericano del siglo XXI

    OpenAIRE

    María F. Lander

    2011-01-01

    Este trabajo analiza tres textos creativos de distintos géneros que recrean en el siglo xxi la imagen de Manuela Sáenz, la famosa amante del Libertador suramericano Simón Bolívar. Se arguye que en la ópera, la novela y la película examinadas se invita al lector/espectador a repensar el papel que jugó la heroína quiteña en la política grancolombiana de su época. Este trabajo discute cómo el esfuerzo por actualizar la imagen de Manuela Sáenz implica negociar la creación de una nueva imagen que ...

  16. Sakharov readings 2012: environmental problems of the XXI century. Proceedings of 12 international scientific conference

    International Nuclear Information System (INIS)

    Kundas, S.P.; Poznyak, S.S.

    2012-05-01

    The proceeding includes materials of reports of 12-th international scientific conference 'Sakharov readings 2012: Environmental problems of XXI century', which took place 17-18 of May 2012 in the International A. Sakharov Environmental University (Minsk, Belarus). The proceeding continues abstracts about social-ecological, ecology-ethical and pedagogical problems in light of the Sakharov' ideas; medical ecology; biological ecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology and medicine; ecological monitoring, management and audit; renewable energy sources and energy efficiency; climate change and sustainable development; regional ecological problems. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges.

  17. Internacional : el Pacífico. Océano del siglo XXI (Coyuntura)

    OpenAIRE

    Salgado Tamayo, Wilma

    1997-01-01

    El impresionante crecimiento económico de los países del Pacífico asiático en los últimos veinte años, que contrasta con el lento crecimiento de los países industrializados, ha llevado a muchos autores a sostener que el centro de gravedad de la economía mundial se está desplazando desde la Cuenca del Atlántico hacia la Cuenca del Pacífico y en ese sentido convertirse en el Océano del Siglo XXI. Un análisis más detallado, muestra sin embargo que en la Cuenca del Pacifico confluyen países y reg...

  18. Los retos de la administración tributaria al inicio del siglo XXI

    OpenAIRE

    Salamanca, Fabio

    2011-01-01

    El autor en este artículo señala que uno de los retos de la administración tributaria del siglo XXI, consiste en actuar con rapidez ante la dinámica con la que se mueve el comercio electrónico, en el marco de la globalización mundial para mitigar los riesgos potenciales asociados a las nuevas formas de interacción de los ciudadanos en función de las nuevas tecnologías especialmente las relacionadas con la informática y la telemática. Así mismo, la exactitud con la que la administración tribut...

  19. POSSIBLE GLOBAL AND REGIONAL EVOLUTIONS OF GEOPOLITICS IN THE XXI CENTURY (II

    Directory of Open Access Journals (Sweden)

    Constantin MINCU

    2013-12-01

    Full Text Available In the paper, the author briefly presents possible global and regional evolutions of geopolitics in the XXI century grounded on the analysis of some regards expressed by foreign and Romanian specialists in many papers appeared in the late years on this subject. A special attention is granted to the book published by STRATFOR founder George FRIEDMAN “The Next 100 Years: A Forecast for the 21st Century”, edited in Romania to the Litera Publishing House in 2012. The evolutions forecasted on medium and long term will practically damage all Earth’s population and its regions, with dramatic consequences on economic, financial, social, military and environmental plan. The most of the geopolitics’ specialists appreciate with arguments and grounded there will be following intricate decades with riots and wars with spectacular up side downs of situations and major reconfigurations of areas of influence of major powers with important influences also over Romania.

  20. EAS primary particle parameter estimation with the complex Pamir-XXI detector array

    Directory of Open Access Journals (Sweden)

    Galkin V.I.

    2017-01-01

    Full Text Available Some new developments in EAS methods made in the framework of the Pamir-XXI project are presented. First, primary energy and direction definition accuracies by a network of fast scintillators are considered, optimum network cell size is defined for 10 PeV showers. Second, the same accuracies for a network of fast optical (Cherenkov detectors are considered for 30 TeV–10 PeV showers. Third, the possibilities of separation of EAS initiated by protons, nitrogen and iron nuclei of 1 and 10 PeV energies using a wide-angle Cherenkov telescope are discussed. Finally, the results of the extraction of 30–50 TeV gamma showers from the proton shower background with the same telescope are presented. Presumably, our developments can help in the study of PCR mass composition and ultra high energy gamma ray astronomy in other projects.

  1. Sakharov readings 2016: environmental problems of the XXI century. Proceedings of the 16 international scientific conference

    International Nuclear Information System (INIS)

    Maskevich, S.A.; Poznyak, S.S.; Lysukho, N.A.

    2016-05-01

    The proceeding includes materials of reports of 16-th international scientific conference 'Sakharov readings 2016: Environmental problems of XXI century', which took place 19-20 of May 2015 in the International A. Sakharov Environmental Institute at the Belarus State University (Minsk, Belarus). The proceeding continues abstracts about philosophical, social-ecological and bioethical problems of modernity; education for sustainable development; medical ecology; biological ecology; radiobiology; radioecology and radiation protection; information systems and technologies in ecology and medicine; regional environmental problems; ecological monitoring and management; renewable energy sources and energy efficiency. In the framework of conference a discussion 'Ethical aspects of biomedicine, genetics, nanomedical technologies and human ecology' was conducted. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

  2. IDENTIDADE NACIONAL: A NEGAÇÃO DO FASCISMO PELOS BRASILEIROS DO SÉCULO XXI

    OpenAIRE

    Souza, Eliza Militz de; UFSM; Armani, Carlos Henrique; UFSM

    2016-01-01

    Este artigo resulta do desenvolvimento de uma pesquisa acerca das características do fascismo presentes em discursos de alguns políticos e parte da população no Brasil em pleno século XXI, partindo principalmente de uma ideia de identidade nacional, o não reconhecimento de que suas ideias e modo de agir são fascistas, os problemas da educação “bancária” neste sentido e a influência da mídia hegemônica do país. Palavras-chave: Identidade Nacional, fascismo, educação

  3. Nuevos retos en la educación del siglo XXI

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    Isidoro Arroyo Almaraz

    2012-04-01

    Full Text Available La educación del siglo XXI reclama una esfera de ética y de responsabilidad social  compartida entre profesores, padres, instituciones y alumnos que nos permitan conseguir un espacio de simpatía recíproca e introduzca la educación  tecnológica, que se hace necesaria para desarrollar la accesibilidad a la información a través de las interacciones con las nuevas interfaces. La selección de nuevos contenidos multimedia e hipermedia. La utilización de datos procedentes de fuentes diversasy las nuevas formas de trabajo cooperativo a través de Internet: blogs, foros, chats, etc

  4. Forces in general relativity

    International Nuclear Information System (INIS)

    Ridgely, Charles T

    2010-01-01

    Many textbooks dealing with general relativity do not demonstrate the derivation of forces in enough detail. The analyses presented herein demonstrate straightforward methods for computing forces by way of general relativity. Covariant divergence of the stress-energy-momentum tensor is used to derive a general expression of the force experienced by an observer in general coordinates. The general force is then applied to the local co-moving coordinate system of a uniformly accelerating observer, leading to an expression of the inertial force experienced by the observer. Next, applying the general force in Schwarzschild coordinates is shown to lead to familiar expressions of the gravitational force. As a more complex demonstration, the general force is applied to an observer in Boyer-Lindquist coordinates near a rotating, Kerr black hole. It is then shown that when the angular momentum of the black hole goes to zero, the force on the observer reduces to the force on an observer held stationary in Schwarzschild coordinates. As a final consideration, the force on an observer moving in rotating coordinates is derived. Expressing the force in terms of Christoffel symbols in rotating coordinates leads to familiar expressions of the centrifugal and Coriolis forces on the observer. It is envisioned that the techniques presented herein will be most useful to graduate level students, as well as those undergraduate students having experience with general relativity and tensor analysis.

  5. THE 2014 MARCH 29 X-FLARE: SUBARCSECOND RESOLUTION OBSERVATIONS OF Fe XXI λ1354.1

    Energy Technology Data Exchange (ETDEWEB)

    Young, Peter R. [College of Science, George Mason University, Fairfax, VA 22030 (United States); Tian, Hui [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Jaeggli, Sarah [Department of Physics, Montana State University, P.O. Box 173840, Bozeman, MT 59717 (United States)

    2015-02-01

    The Interface Region Imaging Spectrometer (IRIS) is the first solar instrument to observe ∼10 MK plasma at subarcsecond spatial resolution through imaging spectroscopy of the Fe XXI λ1354.1 forbidden line. IRIS observations of the X1 class flare that occurred on 2014 March 29 at 17:48 UT reveal Fe XXI emission from both the flare ribbons and the post-flare loop arcade. Fe XXI appears at all of the chromospheric ribbon sites, although typically with a delay of one raster (75 s) and sometimes offset by up to 1''. 100-200 km s{sup –1} blue-shifts are found at the brightest ribbons, suggesting hot plasma upflow into the corona. The Fe XXI ribbon emission is compact with a spatial extent of <2'', and can extend beyond the chromospheric ribbon locations. Examples are found of both decreasing and increasing blue-shift in the direction away from the ribbon locations, and blue-shifts were present for at least six minutes after the flare peak. The post-flare loop arcade, seen in Atmospheric Imaging Assembly 131 Å filtergram images that are dominated by Fe XXI, exhibited bright loop-tops with an asymmetric intensity distribution. The sizes of the loop-tops are resolved by IRIS at ≥1'', and line widths in the loop-tops are not broader than in the loop-legs suggesting the loop-tops are not sites of enhanced turbulence. Line-of-sight speeds in the loop arcade are typically <10 km s{sup –1}, and mean non-thermal motions fall from 43 km s{sup –1} at the flare peak to 26 km s{sup –1} six minutes later. If the average velocity in the loop arcade is assumed to be at rest, then it implies a new reference wavelength for the Fe XXI line of 1354.106 ± 0.023 Å.

  6. Subatomic forces

    International Nuclear Information System (INIS)

    Sutton, C.

    1989-01-01

    Inside the atom, particles interact through two forces which are never felt in the everyday world. But they may hold the key to the Universe. These ideas on subatomic forces are discussed with respect to the strong force, the electromagnetic force and the electroweak force. (author)

  7. Un modelo para la formación del talento humano en la organización en el siglo XXI = A model for the formation of human talent in the XXI century organization

    Directory of Open Access Journals (Sweden)

    Denise Caroline Argüelles P.

    2011-08-01

    La recherche est axée sur la conception d’un modèle qui permettrait un développement de compétences génériques de l’enseignement à distance basé sur l’apprentissage autonome ce qui pourrait constituer un modèle de formation des ressources humaines de l’organisation du XXI ème siècle. L’étude réalisée est de caractère exploratoire et la proposition en première instance est l’identification des variables du modèle et, en deuxième instance, la construction de celui-ci. La méthodologie utilisée est un Delphi ayant rassemblé 30 experts en enseignement á distance. Le questionnaire a été proposé deux fois au même groupe. Une analyse factorielle a ainsi pu être réalisée. Les résultats de la recherche ont rendu possible un Modèle pour la Génération de Compétences Génériques de l’Enseignement á Distance basé sur l’apprentissage autonome grâce à la combinaison de neuf catégories de variables, dont l’importance a été démontrée. Toutefois, il est également apparu que cette relation devrait être maximisée par le biais de stratégies de contrôle dirigées vers les objectifs que l’on souhaite atteindre car il existe des facteurs inhérents aux catégories qui dépendent de conditions personnelles ainsi que du processus d’apprentissage personnel, ce qui pourrait devenir des obstacles au modèle.

  8. LAS MUSAS DE PRINCIPIO DEL SIGLO XXI: INDICIOS DEL CAMBIO EDUCATIVO (MUSEAL MUSES OF THE XXI CENTURY: EVIDENCE OF EDUCATIONAL CHANGE IN MUSEUMS

    Directory of Open Access Journals (Sweden)

    Rodríguez Sánchez, Keilyn

    2012-05-01

    Full Text Available Resumen: Este ensayo expone que la audiencia es el punto de partida para identificar la mejor manera de diseñar experiencias sensoriales de entretenimiento o educación, es el objeto de la investigación museal, sus gustos e intereses se constituye en el eje de los estudios y de las campañas de mercado. Todo el quehacer museal se orienta a satisfacer los gustos y necesidades del sujeto-visitante para así atraerlo al Museo. Este nuevo enfoque museológico tiene el riesgo de olvidar el objeto en el proceso educativo y centrarse en el sujeto. Se propone la promoción del diálogo sujeto-objeto para que la función educativa del Museo contribuya a la conformación de una sociedad con conciencia histórica-cultural clara. Se concluye que, en las primeras décadas del Siglo XXI los diferentes enfoques de la sociomuselogía, la museografía interactiva, la museología crítica y dialógica, así como los ejes de cambio generados por las innovaciones tecnológicas, las dinámicas de consumo y las comunidades de aprendizaje, apuntan a que la audiencia es el centro de atención, y no el objeto y la forma de ser expuesto como lo fue en el Siglo XX.Abstract: This paper presents an allegory between the muses of Greek mythology as the inspiration of memory, knowledge and the arts and the role of muses in inspiring current museum's tasks in the twenty-first century on the worldwide stage, in order to systematize the emerging museological XXI century currents and the central axes of change that are developing in this period. It concludes that in this century different museological approaches to sociomuseology, interactive museography and critical dialogical museology as well as the axes of change generated by technological innovations, the dynamics of consumption and learning communities, suggest that the individual visitor is the main target, and not the object and how it is exhibited (as in the last century. Thus, the individual visitor is the starting

  9. Proceedings of 6. international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century'. Pt. 1; Materialy 6-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2006 goda: Ehkologicheskie problemy XXI veka'. Ch. 1

    Energy Technology Data Exchange (ETDEWEB)

    Kundas, S P; Okeanov, A E; Poznyak, S S [International A. Sakharov environmental univ., Minsk (Belarus)

    2006-05-15

    The first part of proceedings of the sixth international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems, medical ecology, biomonitoring and bioindication, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

  10. Proceedings of 5. international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century'. Pt. 2; Materialy 5-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2005 goda: Ehkologicheskie problemy XXI veka'. Ch. 2

    Energy Technology Data Exchange (ETDEWEB)

    Kundas, S P; Okeanov, A E [International A. Sakharov environmental univ., Minsk (Belarus); Shevchuk, V E [Kamiteht pa prablemam nastupstvaw katastrofy na Charnobyl' skaj AEhS pry Savetse Ministraw Rehspubliki Belarus' , Minsk (Belarus)

    2005-05-15

    The first part of proceedings of the fifth international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century', which was held in the International A. Sakharov Environmental University, contents materials on topics: radioecology, ecological and radiation monitoring, new information systems and technologies in ecology, priority ecological power engineering, management in ecology, ecological education. The proceedings are intended for specialists in field of ecology and related sciences, dosimetry, engineers, teachers, students and post-graduate students.

  11. Invisible force

    International Nuclear Information System (INIS)

    Panek, Richard

    2010-01-01

    Astronomers have compiled evidence that what we always thought of as the actual universe- all the planets, stars, galaxies and matter in space -represents a mere 4% of what's out there. The rest is dark: 23% is called dark matter, 73% dark energy. Scientists have ideas about what dark matter is, but hardly any understanding about dark energy. This has led to rethinking traditional physics and cosmology. Assuming the existence of dark matter and that the law of gravitation is universal, two teams of astrophysicists, from Lawrence Berkeley National Laboratory and the Australian National University, analysed the universe's growth and to their surprise both concluded that the universe expansion is not slowing but speeding up. If the dominant force of evolution isn't gravity what is it?

  12. Madrid en el siglo XXI. Transformaciones y retos de su realidad social. La Realidad Social de Madrid Vol. II

    Directory of Open Access Journals (Sweden)

    Mª del Pilar Gomiz Pascual

    2014-03-01

    Full Text Available Madrid en el siglo XXI. Transformaciones y retos de su realidad social  es el título elegido por la Asociación Madrileña de Sociología (AMS para el segundo volumen de lo que pretende ser una trilogía sobre la Realidad Social de Madrid. Tras el éxito del trabajo realizado con el primer volumen, Antonio Lucas Marín, Carmen Cortés Beltrán y Dolores Cáceres Zapatero, vuelven a coordinar un proyecto excelente donde se da un paso más al esfuerzo comenzado con la edición anterior por dar a conocer aspectos nuevos de la estructura social del Madrid del siglo XXI, aportando enfoques y matices que quedaron sin analizar entonces. 

  13. Attention-deficit hyperactivity disorder symptoms in children and adolescents with sex chromosome aneuploidy: XXY, XXX, XYY, and XXYY.

    Science.gov (United States)

    Tartaglia, Nicole R; Ayari, Natalie; Hutaff-Lee, Christa; Boada, Richard

    2012-05-01

    Attentional problems, hyperactivity, and impulsivity have been described as behavioral features associated with sex chromosome aneuploidy (SCA). In this study, the authors compare attention-deficit hyperactivity disorder (ADHD) symptoms in 167 participants aged 6 to 20 years with 4 types of SCA (XXY n = 56, XYY n = 33, XXX n = 25, and XXYY n = 53). They also evaluate factors associated with ADHD symptomatology (cognitive and adaptive scores, prenatal vs postnatal ascertainment) and describe the clinical response to psychopharmacologic medications in a subset of patients treated for ADHD. Evaluation included medical and developmental history, cognitive and adaptive functioning assessment, and parent and teacher ADHD questionnaires containing DSM-IV criteria. In the total study group, 58% (96/167) met DSM-IV criteria for ADHD on parent-report questionnaires (36% in XXY, 52% in XXX, 76% in XYY, and 72% in XXYY). The Inattentive subtype was most common in XXY and XXX, whereas the XYY and XXYY groups were more likely to also have hyperactive/impulsive symptoms. There were no significant differences in Verbal, Performance, or Full Scale IQ between children with symptom scores in the ADHD range compared with those below the ADHD range. However, adaptive functioning scores were significantly lower in the group whose scores in the ADHD range were compared with those of the group who did not meet ADHD DSM-IV criteria. Those with a prenatal diagnosis of XXY were less likely to meet criteria for ADHD compared with the postnatally diagnosed group. Psychopharmacologic treatment with stimulants was effective in 78.6% (66/84). Children and adolescents with SCA are at increased risk for ADHD symptoms. Recommendations for ADHD evaluation and treatment in consideration of other aspects of the SCA medical and behavioral phenotype are provided.

  14. Public Administration Theoretical Aspects Disputes in Legal Science of the Second Half of XX – Early XXI Centuries

    OpenAIRE

    Ol'ga D. Karnaukh

    2013-01-01

    The article is focused on comparative aspect of different approaches to the “public administration” notion in the legal science of the second half of the XX – early XXI centuries. The author came to a conclusion that the study of many pre-revolutionary, Soviet and modern scientists’ views of the problem of public administration notion definition, its structure, functional orientation and territory administration features allows to conclude that different approaches to its understanding, devel...

  15. Solar Flare Termination Shock and Synthetic Emission Line Profiles of the Fe xxi 1354.08 Å Line

    Energy Technology Data Exchange (ETDEWEB)

    Guo, Lijia [Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, CA (United States); Li, Gang [Department of Space Science and CSPAR, University of Alabama in Huntsville, Huntsville, AL (United States); Reeves, Kathy; Raymond, John, E-mail: gang.li@uah.edu [Harvard-Smithsonian Center for Astrophysics, Boston, MA (United States)

    2017-09-01

    Solar flares are among the most energetic phenomena that occur in the solar system. In the standard solar flare model, a fast mode shock, often referred to as the flare termination shock (TS), can exist above the loop-top source of hard X-ray emissions. The existence of the TS has been recently related to spectral hardening of a flare’s hard X-ray spectra at energies >300 keV. Observations of the Fe xxi 1354.08 Å line during solar flares by the Interface Region Imaging Spectrograph ( IRIS ) spacecraft have found significant redshifts with >100 km s{sup −1}, which is consistent with a reconnection downflow. The ability to detect such a redshift with IRIS suggests that one may be able to use IRIS observations to identify flare TSs. Using a magnetohydrodynamic simulation to model magnetic reconnection of a solar flare and assuming the existence of a TS in the downflow of the reconnection plasma, we model the synthetic emission of the Fe xxi 1354.08 line in this work. We show that the existence of the TS in the solar flare may manifest itself in the Fe xxi 1354.08 Å line.

  16. La Educación en Enfermeria, un reto necesario para el siglo XXI

    Directory of Open Access Journals (Sweden)

    Luz Marina Bautista-Rodriguez

    2004-12-01

    Full Text Available La sociedad contemporánea se ve influenciada por los cambios que en el ámbito económico, de salud, socio-cultural y de educación se vienen presentando. El nuevo siglo motiva a reflexionar lo que se ha logrado como profesionales de enfermería y, desde esta realidad, enfocar el futuro hacia mejorar o cambiar la formación, que contribuya a la consecución de un mejor nivel de salud y calidad de vida de las poblaciones. Enfermería es la única profesión del área de la salud que está presente en todos los escenarios de los diferentes niveles de atención, situación que la hace una profesión con una visión trascendente. El presente artículo plantea de manera general el contexto que fundamenta la necesidad de formación y capacitación en los profesionales de enfermería como un desafío para el siglo XXI, que requiere del desarrollo de competencias determinadas desde lo personal y lo profesional.

  17. Employability skills of vocational high school graduate needed by industry in century XXI

    Science.gov (United States)

    Sudjimat, Dwi Agus

    2017-09-01

    Mastery of employability skills is one of the main characteristics of HR XXI Century. The conclusions of various theoretical and empirical studies show that human resources with high employability skills are not only easier to find a job but will also be able to exist and develop successfully in their work. This study aims to describe the opinion of the industry leaders about the importance of employability skills owned by SMK graduates, to identify the various values of employability skills that the industry needs from SMK graduates, and categorize the values of employability skills that SMK graduates should have. A total of 27 industries partner of SMK in East Java were involved in survey research and 14 productive teachers from seven SMKs were included in the FGD on employability skills development. The results showed that (1) all industry leaders argue that the graduates of SMK must have good employability skills, (2) dimensions of employability skills include the fundamental skills, personal management skills, and team work skills; and (3) the ownership of various values of employability skills by SMK graduates can be classified into two, namely (a) must be owned and should be developed in SMK, and (b) well owned and better developed in SMK.

  18. Neurocognitive outcomes of individuals with a sex chromosome trisomy: XXX, XYY, or XXY: a systematic review*

    Science.gov (United States)

    LEGGETT, VICTORIA; JACOBS, PATRICIA; NATION, KATE; SCERIF, GAIA; BISHOP, DOROTHY V M

    2010-01-01

    Aim To review systematically the neurodevelopmental characteristics of individuals with sex chromosome trisomies (SCTs). Method A bibliographic search identified English-language articles on SCTs. The focus was on studies unbiased by clinical referral, with power of at least 0.69 to detect an effect size of 1.0. Results We identified 35 articles on five neonatally identified samples that had adequate power for our review. An additional 11 studies were included where cases had been identified for reasons other than neurodevelopmental concerns. Individuals with an additional X chromosome had mean IQs that were within broadly normal limits but lower than the respective comparison groups, with verbal IQ most affected. Cognitive outcomes were poorest for females with XXX. Males with XYY had normal-range IQs, but all three SCT groups (XXX, XXY, and XYY) had marked difficulties in speech and language, motor skills, and educational achievement. Nevertheless, most adults with SCTs lived independently. Less evidence was available for brain structure and for attention, social, and psychiatric outcomes. Within each group there was much variation. Interpretation Individuals with SCTs are at risk of cognitive and behavioural difficulties. However, the evidence base is slender, and further research is needed to ascertain the nature, severity, and causes of these difficulties in unselected samples. PMID:20059514

  19. Neurocognitive outcomes of individuals with a sex chromosome trisomy: XXX, XYY, or XXY: a systematic review.

    Science.gov (United States)

    Leggett, Victoria; Jacobs, Patricia; Nation, Kate; Scerif, Gaia; Bishop, Dorothy V M

    2010-02-01

    To review systematically the neurodevelopmental characteristics of individuals with sex chromosome trisomies (SCTs). A bibliographic search identified English-language articles on SCTs. The focus was on studies unbiased by clinical referral, with power of at least 0.69 to detect an effect size of 1.0. We identified 35 articles on five neonatally identified samples that had adequate power for our review. An additional 11 studies were included where cases had been identified for reasons other than neurodevelopmental concerns. Individuals with an additional X chromosome had mean IQs that were within broadly normal limits but lower than the respective comparison groups, with verbal IQ most affected. Cognitive outcomes were poorest for females with XXX. Males with XYY had normal-range IQs, but all three SCT groups (XXX, XXY, and XYY) had marked difficulties in speech and language, motor skills, and educational achievement. Nevertheless, most adults with SCTs lived independently. Less evidence was available for brain structure and for attention, social, and psychiatric outcomes. Within each group there was much variation. Individuals with SCTs are at risk of cognitive and behavioural difficulties. However, the evidence base is slender, and further research is needed to ascertain the nature, severity, and causes of these difficulties in unselected samples.

  20. La experiencia de mujeres con discapacidades en los proyectos archivísticos del siglo XXI

    Directory of Open Access Journals (Sweden)

    Dora Inés Munévar M.

    2011-09-01

    Full Text Available El artículo analiza la manera como los proyectos archivísticos del siglo XXI podrían favorecer la reconstituciónde subjetividades silenciadas y develar historias de exclusión. Se toma como caso de análisis ladocumentación sobre mujeres con discapacidades en instituciones de rehabilitación, salud mental oprotección legal. A partir de allí, la autora propone mecanismos para que la información depositadaen los archivos, especialmente institucionales, contribuya a la recuperación de la memoria, y a la democratizacióny descolonización de la historia de grupos excluidos y marginados. Esto gracias a que losarchivos albergan no solo documentos escritos autorizados sino una multiplicidad de materiales oralesy visuales.Materiales que pueden contribuir a la visibilización y reconocimiento de la diferencia, desdelas experiencias vidas de, por ejemplo, las mujeres con discapacidades, quienes adquirirían así una vozpropia.

  1. Las TIC y la educación social en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Begoña Esther Sampedro Requena

    2016-01-01

    Full Text Available Este artículo recoge una serie de reflexiones sobre el papel que juega los profesionales de la educación social en las nuevas realidades sociales, donde subyace la necesidad de una formación y capacitación de los recursos tecnológicos como elementos que favorecen la integración de los sujetos en la sociedad. Como resultado de esta premisa se presenta un breve análisis teórico de la educación social en el siglo XXI, deteniéndonos en dos elementos esenciales de la misma, la titulación universitaria en la que se desarrolla y las características básicas de la ocupación profesional que la desempeñan. Asimismo, se relata los elementos que determinan las sociedades actuales, aproximándonos a las tecnologías como componente básico de estas nuevas realidades.

  2. ¿Hegemonía o dominio norteamericanos en los inicios del siglo XXI?

    Directory of Open Access Journals (Sweden)

    Francisco R. Dávila Aldás

    2011-01-01

    Full Text Available En este artículo, el autor analiza algunas de las preguntas clave para entender el complicado panorama internacional actual. ¿Estados Unidos ejerce a nivel internacional, durante la primera década del siglo xxi, la función de hegemonía o la de dominio?, ¿se pueden seguir negociando las diferencias y conflictos a partir de las reglas sancionadas por el derecho internacional actual?, o, por el contrario, ¿es menester ajustar las reglas del juego a nivel nacional y mundial y modificarlas sustancialmente? En este contexto, el autor indaga las razones de la pérdida de hegemonía norteamericana y su sustitución por el dominio ejercido a nivel internacional. Aborda también el papel económico y político de otros países y su impacto en la arena internacional dentro de los marcos actuales de crisis económica y política en buena parte del mundo.

  3. Nueva faceta del capitalismo del siglo XXI en América Latina

    Directory of Open Access Journals (Sweden)

    Samuel Lichtensztejn

    2016-09-01

    Full Text Available Desde fin del siglo XX el sistema económico, político y social a nivel global ha entrado en un proceso de cambios, que en varios países de América Latina, parecía podría haber sido de oportunidades en varios ámbitos, sin embargo no han tenido los beneficios esperados. Si bien varios gobiernos de la región emergieron con un discurso nacional y popular con aspiraciones de crecimiento económico con distribución de la riqueza, aspiración democrática y bienestar social, poco a poco se fue desvaneciendo en gran medida por una serie de políticas públicas en el ámbito económico, político y social. Lo que está caracterizando el capitalismo del siglo XXI en América Latina.

  4. Cyberwar XXI: quantifying the unquantifiable: adaptive AI for next-generation conflict simulations

    Science.gov (United States)

    Miranda, Joseph; von Kleinsmid, Peter; Zalewski, Tony

    2004-08-01

    The era of the "Revolution in Military Affairs," "4th Generation Warfare" and "Asymmetric War" requires novel approaches to modeling warfare at the operational and strategic level of modern conflict. For example, "What if, in response to our planned actions, the adversary reacts in such-and-such a manner? What will our response be? What are the possible unintended consequences?" Next generation conflict simulation tools are required to help create and test novel courses of action (COA's) in support of real-world operations. Conflict simulations allow non-lethal and cost-effective exploration of the "what-if" of COA development. The challenge has been to develop an automated decision-support software tool which allows competing COA"s to be compared in simulated dynamic environments. Principal Investigator Joseph Miranda's research is based on modeling an integrated military, economic, social, infrastructure and information (PMESII) environment. The main effort was to develop an adaptive AI engine which models agents operating within an operational-strategic conflict environment. This was implemented in Cyberwar XXI - a simulation which models COA selection in a PMESII environment. Within this framework, agents simulate decision-making processes and provide predictive capability of the potential behavior of Command Entities. The 2003 Iraq is the first scenario ready for V&V testing.

  5. Filosofa y ética gerencial para las empresas del siglo XXI

    Directory of Open Access Journals (Sweden)

    Elsa Fernandez

    2005-01-01

    Full Text Available El artículo desarrolla a manera de ensayo una visión general sobre el valor y al- cance de la filosofía y ética gerencial para las empresas del siglo XXI, así como de las consideraciones administrativas para asumir este enfoque como modelo para el desa- rrollo empresarial. Mediante este análisis, se reflexiona acerca de la introducción de la ética gerencial ante los nuevos escenarios organizacionales, se describen los factores que ejercen influencia sobre el surgimiento de un nuevo formato corporativo en las empresas que deciden renovar su capacidad de acción dentro del ámbito de la filoso- fía y ética gerencial, que estimule a los empresarios a asumir los cambios necesarios para establecer nuevas formas de hacer negocios dentro del contexto económico y ante el mercado, asegurando una eficaz optimización de sus procesos administrativos, especialmente de la toma de decisiones, consolidar una visión moral y con responsabilidad social de la empresa, siendo sus premisas fundamentales la excelencia, la justicia, la equidad, la oportunidad, la confianza, la confiabilidad, el flujo de información y la comunicación y cuyo funcionamiento describa su personalidad definitoria,tanto para sus integrantes como para los agentes externos con los cuales se relaciona.

  6. ALBORES DEL SIGLO XXI Y TRANSICIÓN ADOLESCENTE. LOS ADOLESCENTES ANTE LA CRISIS MUNDIAL

    Directory of Open Access Journals (Sweden)

    2002-01-01

    Full Text Available El paso de la niñez a la vida adulta en los humanos es un periodo de cambio y reestructuración que ofrece tanto posibilidades de avanzar en el desarrollo personal y en la integración a la cultura, como riesgos de fracasar en el intento de lograrlo. Este trabajo tiene como hilo conductor las preguntas acerca de los retos específicos que tienen que enfrentar los adolescentes de principios del siglo XXI en esta era de cambio y transición radical, así como de los recursos con que cuentan para vérselas con un mundo en crisis que hace difícil ya creer en el desarrollo a perpetuidad. Las respuestas a tales cuestiones van surgiendo a lo largo del trabajo como resultado de la escucha de voces de adolescentes que entretejen a sus angustias y temores presentes sus fantasías y proyectos, así como la esperanza de que a pesar de todo tengamos un futuro como especie.

  7. Las Humanidades del siglo XXI en Argentina: desafíos y nuevas fronteras

    Directory of Open Access Journals (Sweden)

    María Paula Cicogna

    2016-01-01

    Full Text Available Las Ciencias Humanas en Argentina tienen una historia de casi 120 años; a partir de la inauguración de la Facultad de Filosofía y Letras de la Universidad de Buenos Aires, en 1896, las Humanidades se convierten en parte del currículo en la Universidad y de la formación de los futuros graduados de las escuelas secundarias. Después de un siglo, las Humanidades han recorrido distintas etapas de vida y hoy son aliadas del Buen Gobierno y de las TIC para dar cuenta de su vigencia. Este artículo busca repasar la trayectoria de las Ciencias Humanas en Argentina, y como estas se perfilan en esta segunda década del siglo XXI. Pero para hablar del hoy debemos remitirnos al pasado, para descubrir cómo nacieron las Humanidades en Argentina y conocer el camino que han recorrido, para luego poder vislumbrar cuál es el estado actual de su desarrollo y cuáles serán sus retos.

  8. Las Humanidades del siglo XXI en Argentina: desafíos y nuevas fronteras*

    Directory of Open Access Journals (Sweden)

    María Paula A. Cicogna

    2016-01-01

    Full Text Available Las Ciencias Humanas en Argentina tienen una historia de casi 120 años; a partir de la inauguración de la Facultad de Filosofía y Letras de la Universidad de Buenos Aires, en 1896, las Humanidades se convierten en parte del currículo en la Universidad y de la formación de los futuros graduados de las escuelas secundarias. Después de un siglo, las Humanidades han recorrido distintas etapas de vida y hoy son aliadas del Buen Gobierno y de las TIC para dar cuenta de su vigencia. Este artículo busca repasar la trayectoria de las Ciencias Humanas en Argentina, y como estas se perfilan en esta segunda década del siglo XXI. Pero para hablar del hoy debemos remitirnos al pasado, para descubrir cómo nacieron las Humanidades en Argentina y conocer el camino que han recorrido, para luego poder vislumbrar cuál es el estado actual de su desarrollo y cuáles serán sus retos.

  9. X marks the spot : structural and functional brain mapping in a genetically defined group at high risk of autism symptoms (47,XXY), and a comparison with idiopathic autism spectrum disorder

    NARCIS (Netherlands)

    Goddard, Marcia Naomi

    2015-01-01

    Klinefelter syndrome (47,XXY) is associated with a wide range of behavioral problems, including autism symptomatology. In the current thesis, brain structure and function were assesed in boys with 47,XXY, boys with idiopathic autism spectrum disorder, and non-clinical controls, using multiple

  10. Labor Force

    Science.gov (United States)

    Occupational Outlook Quarterly, 2012

    2012-01-01

    The labor force is the number of people ages 16 or older who are either working or looking for work. It does not include active-duty military personnel or the institutionalized population, such as prison inmates. Determining the size of the labor force is a way of determining how big the economy can get. The size of the labor force depends on two…

  11. Dispersion Forces

    CERN Document Server

    Buhmann, Stefan Yoshi

    2012-01-01

    In this book, a modern unified theory of dispersion forces on atoms and bodies is presented which covers a broad range of advanced aspects and scenarios. Macroscopic quantum electrodynamics is shown to provide a powerful framework for dispersion forces which allows for discussing general properties like their non-additivity and the relation between microscopic and macroscopic interactions. It is demonstrated how the general results can be used to obtain dispersion forces on atoms in the presence of bodies of various shapes and materials. Starting with a brief recapitulation of volume I, this volume II deals especially with bodies of irregular shapes, universal scaling laws, dynamical forces on excited atoms, enhanced forces in cavity quantum electrodynamics, non-equilibrium forces in thermal environments and quantum friction. The book gives both the specialist and those new to the field a thorough overview over recent results in the field. It provides a toolbox for studying dispersion forces in various contex...

  12. [The scientific revolution in medicine of second half of XX - early XXI centuries: occurrence of new conceptions about human organism and essence of diseases].

    Science.gov (United States)

    Stepin, V S; Zatravkin, S N

    2016-01-01

    The article presents the results of analysis of works of supreme Russian physiologists and pathologists of XX-XXI centuries. The analysis was applied on the basis concept of structure and dynamics of scientific cognition developed by one o the authors of the present article. The applied analysis permits affirming that during second half of XX-early XXI centuries in medicine occurred and continues to occurring transformations whose character and scope totally corresponds to scientific revolution and occurring and establishing in medicine new conceptions have all signs permitting referring them to post-neoclassic type of scientific rationality.

  13. Marcha de absorção dos micronutrientes para mudas de goiabeiras cultivares Paluma e Século XXI

    OpenAIRE

    Franco,Claudenir Facincani; Prado,Renato de Mello; Braghirolli,Luiz Fernando; Rozane,Danilo Eduardo

    2008-01-01

    O conhecimento da marcha de absorção dos micronutrientes em mudas de goiabeira garante melhor eficiência da adubação. O objetivo do trabalho foi determinar a marcha de absorção de micronutrientes em mudas de duas cultivares de goiabeira. O delineamento experimental utilizado foi em parcelas subdivididas com três repetições. Assim, foram utilizadas como tratamentos principais duas cultivares de goiabeira (Paluma e Século XXI) obtidas por estacas herbáceas e como subparcelas, sete coletas de pl...

  14. Violencia sin guerra: La sociedad vasca y el terrorismo de eta en el umbral del siglo XXI

    Directory of Open Access Journals (Sweden)

    Santiago de Pablo

    2003-10-01

    Full Text Available En este artículo analizamos la evolución de la organización terrorista ETA, desde su nacimiento en 1959 hasta nuestros días. En el país Vasco no hay una guerra sino un enfrentamiento entre una minoría, cada vez más reducida, y una vasca plural, pero mayoritariamente contraria al terrorismo. De ahí que, en este inicio del siglo XXI, ETA se haya convertido en un movimiento cerrado en sí mismo y anclado en el tiempo, que se resiste a aceptar su fracaso.

  15. Tecnología, competitividad y agroindustria: La revolución verde en el siglo XXI

    OpenAIRE

    Freddy José Pinto Figueroa; Maristela Vega

    2003-01-01

    El manejo agroindustrial venezolano fue básico en eficiencia y desarrollo. Llegado el siglo XXI, se asumen decisiones basadas en adelantos tecnológicos. Nace la “Revolución Verde”, buscando solucionar problemas, ecológica y equilibradamente. La incorporación venezolana a MERCOSUR, motiva investigar experiencias de países miembros. Aspecto resaltante es acceder a tecnologías con rasgos de reinserción en economías globalizadas, bajo cambios tecnoproductivos. Esto circunscribe la producción pri...

  16. CRITICAL DEVELOPMENT OF COSTING METHODS USED IN THE FURNITURE INDUSTRY, IN THE CONTEXT OF ECONOMIC REALITY SPECIAL XXI CENTURY

    Directory of Open Access Journals (Sweden)

    Ene Dumitru

    2010-12-01

    Full Text Available In the current economic downturn in the furniture industry companies, to face competition, requires new costing methods to succeed, in a flexible manner, fructifying market information, inside to find levers to identify places, resource intensive activities and then cost reduction opportunities. New methods of management cost excess the accounting and economics scope Current economic situation requires this work and converts the cost information into the main tool of insurance competitiveness and profitability of the company. Applying the standard cost in single cost model is a viable business solutions of enterprises in the furniture industry to face strong competition from European Union, specifically in the context of complex economic XXI century.

  17. O capitalismo no início do século XXI: consumo e desfrute como imperativos morais

    Directory of Open Access Journals (Sweden)

    Pedro Robertt

    Full Text Available Resumo Nesta resenha, os autores apresentam e discutem um dos livros mais recentes de Adrián Scribano, que descrevem como uma obra complexa, densa, criativa e crítica. Um esforço para retratar o capitalismo, no Sul Global, no início do século XXI, como um imperativo moral, a obra reflete anos de reflexão teórica e pesquisa empírica e perpassa diversos temas das sociedades capitalistas contemporâneas.

  18. Sakharov readings 2010: Environmental problems of the XXI century. Proceedings of the 10 international scientific conference. Part 1

    International Nuclear Information System (INIS)

    Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

    2010-05-01

    Proceeding includes materials of reports of 10-ts international scientific conference. Part 1e 'Sakharov readings 2010: Environmental problems of XXI century', which took place 20-21 of May 2010 in the International Sakharov Environmental University. The first part of the proceedings continues abstracts about social-ecological and ecology-ethical problems, medical ecology, biological ecology, biomonitoring, bioindication and bioremediation. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges.

  19. Increased basal and pulsatile secretion of FSH and LH in young men with 47,XXY or 46,XX karyotypes

    DEFF Research Database (Denmark)

    Aksglaede, L.; Jensen, Rikke Bodin Beck; Carlsen, E.

    2008-01-01

    testicular failure due to supernumerary X chromosomes. DESIGN: Cross-sectional study. METHODS: In this study, 7 untreated patients with primary gonadal insufficiency due to SRY-positive 46,XX (n=4) and 46,XXY karyotypes (n=3) aged 18.8 years and 25 age-matched healthy controls participated. Reproductive...... basal, pulsatile, and total LH and FSH secretion were associated with significantly more LH peaks per 24 h in comparison with healthy controls. Thus, our data indicate that in patients with Klinefelter syndrome and XX male karyotypes the entire hypothalamic-pituitary-gonadal axis has undergone...

  20. Sakharov readings 2010: Environmental problems of the XXI century. Proceedings of the 10 international scientific conference. Part 2

    International Nuclear Information System (INIS)

    Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

    2010-05-01

    Proceeding includes materials of reports of 10-ts international scientific conference 'Sakharov readings 2010: Environmental problems of XXI century', which took place 20-21 of May 2010 in the International Sakharov Environmental University. The second part of the proceedings continues abstracts about radioecology and radiation security; ecological informational systems and technologies; ecological monitoring, management and audit; resumption sources of energy and energy-saving technologies; problems of ecological education. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

  1. Public Administration Theoretical Aspects Disputes in Legal Science of the Second Half of XX – Early XXI Centuries

    Directory of Open Access Journals (Sweden)

    Ol'ga D. Karnaukh

    2013-01-01

    Full Text Available The article is focused on comparative aspect of different approaches to the “public administration” notion in the legal science of the second half of the XX – early XXI centuries. The author came to a conclusion that the study of many pre-revolutionary, Soviet and modern scientists’ views of the problem of public administration notion definition, its structure, functional orientation and territory administration features allows to conclude that different approaches to its understanding, developed by pre-revolutionary scientists objectively survived, were affected by class ideology in Soviet period and are influenced by the paradigm of law-governed democratic state at present.

  2. La alfabetización informativa tecnológica: estrategia fundamental en las bibliotecas del Siglo XXI

    OpenAIRE

    Palma Peña, Juan Miguel

    2009-01-01

    La sociedad del conocimiento y las bibliotecas del siglo XXI son espacios de interacción digital yvirtual necesarios. La biblioteca, para estar en concordancia con los adelantos tecnológicos que sepresentan a diario, los ha aplicado en sus actividades y funciones sustantivas. Sin embargo, estosdesarrollos se presentan a una gran velocidad, lo cual produce que la sociedad conozca poco respectoa la forma de cómo aprovechar al máximo estos recursos tecnológicos. Ante esto, la biblioteca deberáse...

  3. Executive dysfunction and the relation with behavioral problems in children with 47,XXY and 47,XXX.

    Science.gov (United States)

    van Rijn, S; Swaab, H

    2015-02-01

    Neuroimaging studies have shown that having an extra X chromosome is associated with abnormal structure and function of brain areas in the frontal lobe, which is crucially involved in executive functioning. However, there is little of knowledge of the type and severity of executive dysfunction, and the impact on emotional and behavioral problems. The present study aims to provide in this. In total, 40 children (23 boys with 47,XXY and 17 girls with 47,XXX) with an extra X chromosome and 100 non-clinical controls (47 boys and 53 girls) participated in the study. The participants were 9-18 years old. Processing speed and executive functioning were assessed using the Amsterdam Neuropsychological Testbattery (ANT) and the Dysexecutive Questionnaire (DEX). Problems in emotional and behavioral functioning were assessed with the Childhood Behavior Checklist (CBCL). Children with an extra X chromosome showed deficits in inhibition, mental flexibility, sustained attention and visual working memory. Parental report showed high levels of everyday manifestations of executive dysfunction. More severe inhibition difficulties were associated with higher levels of thought problems, aggression and rule breaking behavior. Boys and girls with an extra X chromosome could not be differentiated based on severity of executive dysfunction, however, girls had lower information processing speed than boys. These findings suggest that executive dysfunction may be part of the phenotype of children with an extra X chromosome, impacting the ability to function adequately in everyday life. Furthermore, children with impairments in inhibition may have more problems in regulating their thinking, emotions and behavior. © 2015 John Wiley & Sons Ltd and International Behavioural and Neural Genetics Society.

  4. PHILOSOPHICAL-CULTURAL CONCEPTION OF TELEVISION AS A VISUAL PRACTICES OF XX-XXI CENTURY

    Directory of Open Access Journals (Sweden)

    A. M. Tormakhova

    2016-12-01

    Full Text Available Purpose of the article is to analyze the philosophical and cultural ideas about television, which is a leading visual practice of XX century. It does not lose its relevance in the beginning of the XXI. The role of television lies in visual presentation and formation of the basic norms of taste and traditions of different social groups. Television is the leading communicative practice, which consideration is represented differently in modern science. Research methodology involves an appeal to the philosophical and cultural concepts, representing different approaches to the understanding of television. The paper considers the views of Western scholars, such as R. Arnheim, M. Wolff, A. Kroker, G. Lipovetsky, M. McLuhan, D. Mulvin, J. Mittell, N. Postman, L. Saffhil, J. Sterne, E. Thompson, J. Fiske, S. Shapiro. During analysis of the issue of the specific nature of television content the works of Russian scientists – T. Savitskaya, N. Samutina and Polish contemporary author – R. Sapenko were used. Originality lies in the depiction of the main approaches to the study of television as a visual communicative practice. Deployment of the author's position within the designated issues is presented as a historical digression – from the first attempts at understanding the phenomenon of television to the newest scientific theories that have found expression in contemporary American philosophical and cultural thought. Results of the study can be used in the training course "Visual communication and practices." Conclusions indicated that the majority of contemporary visual practices based on certain patterns, embedded TV. Despite the emergence of new media practices, TV does not lose relevance, everywhere present in the culture, which means that his research will allow a better understanding of the specificity of cultural creativity process.

  5. CONVERGENCIA DIGITAL EN LA UNIVERSIDAD COLOMBIANA. DEL SIGLO XX AL XXI

    Directory of Open Access Journals (Sweden)

    Diana Elvira Soto Arango

    2012-01-01

    Full Text Available La investigación presenta los orígenes de la convergencia digital desde la tecnología educativa, con la educación programada, la evolución, tendencias teóricas y la prospectiva en el contexto universitario colombiano. El período de estudio se enmarca desde el siglo XX, con la tecnología educativa hasta la prospectiva en el siglo XXI, con el reto de integrar las innovaciones tecnológicas, para optimizar la calidad en las funciones misionales, la competitividad, el reconocimiento y la cobertura estudiantil en el nivel universitario. Por tanto, analizamos algunas experiencias de influencia de la unificación de medios y la forma como se pueden beneficiar las instituciones universitarias dentro del contexto de la legislación colombiana. El método se sustentó en la historia social de la educación con la metodología de la educación comparada. Las estrategias se soportaron en fuentes documentales de legislación, informes y la bibliografía acompañada de proyectos en desarrollo. Se concluye cómo la convergencia digital permite la fusión de las dependencias en Tecnologías de la Información y la Comunicación (TIC de las universidades, para producir contenidos y servicios académicos, cambios en los hábitos de consumo de información por parte de los sujetos sociales y generar actitudes colaborativas y de aprendizaje autónomo, que permiten aportar a los procesos de enseñanza y aprendizaje y a la construcción de conocimiento desde cualquier momento y lugar.

  6. Health for all in the twenty-first century Salud para todos en el siglo XXI

    Directory of Open Access Journals (Sweden)

    1998-08-01

    Full Text Available Salud para todos en el siglo XXI renueva el compromiso con el concepto y la visión de salud para todos, tal como se definió en 1977, cuando la 30a Asamblea Mundial de la Salud resolvió que el principal objetivo social de los gobiernos y de la OMS en los decenios venideros debería ser "alcanzar para todos los ciudadanos del mundo en el año 2000 un grado de salud que les permita llevar una vida social y económicamente productiva". Este proceso, que se interpreta de forma diferente según las características sociales, económicas y de salud de cada país, ha contribuido a la mejora paulatina del acceso a la atención primaria de salud, a la disminución mundial de la morbilidad y la mortalidad infantiles y a un aumento considerable de la esperanza de vida. Aun así, todavía hay muchos problemas que resolver. Desde 1990, el sistema de las Naciones Unidas ha convocado nueve conferencias mundiales en las que se han acordado por consenso universal las prioridades de un programa de trabajo para el futuro, incluido el apoyo pleno del logro de salud para todos. Los nuevos enfoques giran en torno al desarrollo centrado en el ser humano, lo cual comprende erradicar la pobreza, satisfacer las necesidades básicas y proteger los derechos humanos, incluido el de la salud.

  7. Las habilidades comunicativas, una necesidad formativa del profesional del Siglo XXI.

    Directory of Open Access Journals (Sweden)

    Otto Cevallos Mieles

    2016-09-01

    Full Text Available La educación superior, en estas primeras dos década del siglo XXI, manifiesta las mismas carencias y retos que se heredaron de la centuria anterior, aunque los gobiernos e instituciones de muchos países, han tomado conciencia de la necesidad de los cambios. En el Ecuador se han iniciado transformaciones educativas que generan expectativas en las esferas políticas, económicas y sociales, a partir de cambios curriculares, principalmente en la educación superior, por lo que esta significa para el desarrollo del país. En este contexto, la formación del jurista ha implicado una nueva mirada a sus competencias. La necesidad de expresarse en público, liderar grupos humanos, argumentar, persuadir, fundamentar y convencer, son exigencias que se alcanzan con el desarrollo de las habilidades comunicativas. Debe ser una premisa fundamental para el jurista, el desarrollo de las competencias que le permita manejar con efectividad los componentes verbales, no verbales y paralingüísticos de la comunicación. Se debe concientizar que todo el cuerpo habla. No solo con lo oral se transmiten mensajes que apoyen los argumentos que utiliza en su exposición. El trabajo aborda la necesidad del dominio de los conocimientos y habilidades sobre lo no verbal y lo paralingüístico y su importancia en la comunicación. Se enfatiza en la necesidad del dominio de estas habilidades para una orientación más efectiva durante las situaciones de intercambio en los distintos ámbitos del desempeño de un jurista.

  8. Transformaciones familiares: desafío para la educación del siglo XXI

    Directory of Open Access Journals (Sweden)

    Gladys Jadue

    2013-09-01

    Full Text Available Este artículo analiza algunos factores sociales que han incrementado las transformaciones en la familia, aumentando el riesgo en los hijos de bajo rendimiento, desadaptación, y problemas emocionales y conductuales, los cuales pueden dar lugar al abandono de las aulas. Entre estos factores se encuentran la mayor supervivencia de los individuos, una mayor movilidad geográfica, la inclusión de la mujer en el campo laboral, así como el incremento de familias uniparentales y los niveles de pobreza. Se propone la implementación en las escuelas de mecanismos protectores para los alumnos provenientes de familias disfuncionales, utilizando para ello talleres de desarrollo personal que propicien el autoconocimiento y el de los demás, la interacción humana y la buena relación con los familiares. The article analyses some social factors that increase the possibility of family changes that enlarge children's low achievement and failure, emotional disturbance and behavioral problems at school. Among these factors are the increased life expectancy and geographical mobility, the increased participation of women in the labor force, as well as uniparental families and poverty. It is argued that through the creation of personal development workshops with children from dysfunctional families it is possible to build supporting networks that allow for a good school performance in these children. These workshops should promote understanding of self and others, human interaction and good relationships with family members.

  9. Heat-Induced, Pressure-Induced and Centrifugal-Force-Induced Exact Axisymmetric Thermo-Mechanical Analyses in a Thick-Walled Spherical Vessel, an Infinite Cylindrical Vessel, and a Uniform Disk Made of an Isotropic and Homogeneous Material

    Directory of Open Access Journals (Sweden)

    Vebil Yıldırım

    2017-07-01

    Full Text Available Heat-induced, pressure-induced, and centrifugal force-induced axisymmetric exact deformation and stresses in a thick-walled spherical vessel, a cylindrical vessel, and a uniform disk are all determined analytically at a specified constant surface temperature and at a constant angular velocity. The inner and outer pressures are both included in the formulation of annular structures made of an isotropic and homogeneous linear elastic material. Governing equations in the form of Euler-Cauchy differential equation with constant coefficients are solved and results are presented in compact forms. For disks, three different boundary conditions are taken into account to consider mechanical engineering applications. The present study is also peppered with numerical results in graphical forms.

  10. A rare case of lateral ovotesticular disorder with Klinefelter syndrome mosaicism 46, XX/47, XXY: An unusual presentation.

    Science.gov (United States)

    Talreja, Shyam M; Banerjee, Indraneel; Yadav, Sher Singh; Tomar, Vinay

    2015-01-01

    Ovotesticular disorder of sex development (OT-DSD) is a rare disorder of sexual differentiation characterized by the presence of both ovarian and testicular tissues in the same individual. It's incidence ranges from 3% to 10% of all disorder of DSD's, and the most common presentation is 46, XX followed by 46, XX/46, XY mosaicism and 46, XY. Klinefelter syndrome (KS) mosaicism 46, XX/47, XXY is extremely rare, and its association with the ovotesticular disorder is even rarer. We report an unusual case of 16-year-old with male habitus who presented with complains of cyclic hematuria. On examination, he had bilateral gynecomastia, unilateral left cryptorchidism, absent facial hair, sparse axillary hair growth, and pubic hair distribution of feminine type. The right testis was of normal size located normally in hemiscrotum and was confirmed by radio imaging. Ultrasonography and magnetic resonance imaging revealed a cystic area behind posterior half of urinary bladder. Chromosomal analysis revealed 46, XX/47, XXY mosaicism of female karyotype and KS. Histopathological report of this left side excised specimen confirmed the structures to be ovary, uterus, and fallopian tube, thus confirming our diagnosis of the lateral ovotesticular disorder. Meticulous workup combined interdisciplinary approach will lead to early diagnosis and resolve timely sex reassignment issues and also prevent consequences arising due to gonadal insufficiency.

  11. Salamanca como referente simbólico: la urbe del siglo XXI en Tierra Violenta de Luciano G. Egido

    Directory of Open Access Journals (Sweden)

    Ana Eva Rodríguez Valentín

    2017-02-01

    Full Text Available El propósito de este artículo es examinar el material simbólico y los vínculos sociales entre la memoria colectiva, la identidad y el espacio de Salamanca, en el siglo XXI a través de la novela, Tierra Violenta, de Luciano G. Egido. Desde esta perspectiva, propongo una lectura del texto que nos ayude a entender cómo las circunstancias políticas y económicas determinan la estructura de la ciudad; que cambia, a su vez,  la vida de sus habitantes. Se trata de una ciudad que, aparentemente, vive en el pasado, pero que no es inmune a los mecanismos que rigen el siglo XXI. En esta aproximación, el texto literario es una fuente de distintas líneas de análisis para entender las temporalidades urbanas y la dialéctica de ambos, el proyecto público y  la herencia urbana.

  12. Low semen volume in 47 adolescents and adults with 47,XXY Klinefelter or 46,XX male syndrome

    DEFF Research Database (Denmark)

    Aksglaede, L; Jørgensen, N; Skakkebaek, N E

    2008-01-01

    Klinefelter syndrome is characterized by progressive testicular failure causing androgen deficiency and azoospermia in most patients. The aim of this study was to evaluate semen quality in consecutive patients with an additional X chromosome as compared with healthy males. Forty-seven males...... with non-mosaic 47,XXY (n = 40) or SRY-positive 46,XX male (n = 7) karyotypes aged 26.1 (range: 15.0-51.7) years participated. Semen quality was compared with 2136 (control group I) men from the general population aged 18.9 (17.9-28.6) years and with 349 fertile men (control group II) aged 30.9 (22.......0-43.8) years. Semen volume adjusted for duration of abstinence was significantly smaller in the patients [2.0 (0.2-5.7) mL] when compared with control group I [3.1 (0.3-12.5) mL, p semen volume between 47,XXY and 46,XX males. All...

  13. Observation and modelling of the Fe XXI line profile observed by IRIS during the impulsive phase of flares

    Science.gov (United States)

    Polito, V.; Testa, P.; De Pontieu, B.; Allred, J. C.

    2017-12-01

    The observation of the high temperature (above 10 MK) Fe XXI 1354.1 A line with the Interface Region Imaging Spectrograph (IRIS) has provided significant insights into the chromospheric evaporation process in flares. In particular, the line is often observed to be completely blueshifted, in contrast to previous observations at lower spatial and spectral resolution, and in agreement with predictions from theoretical models. Interestingly, the line is also observed to be mostly symmetric and with a large excess above the thermal width. One popular interpretation for the excess broadening is given by assuming a superposition of flows from different loop strands. In this work, we perform a statistical analysis of Fe XXI line profiles observed by IRIS during the impulsive phase of flares and compare our results with hydrodynamic simulations of multi-thread flare loops performed with the 1D RADYN code. Our results indicate that the multi-thread models cannot easily reproduce the symmetry of the line and that some other physical process might need to be invoked in order to explain the observed profiles.

  14. Different forces

    CERN Multimedia

    1982-01-01

    The different forces, together with a pictorial analogy of how the exchange of particles works. The table lists the relative strength of the couplings, the quanta associated with the force fields and the bodies or phenomena in which they have a dominant role.

  15. Labor Force

    Science.gov (United States)

    Occupational Outlook Quarterly, 2010

    2010-01-01

    The labor force is the number of people aged 16 or older who are either working or looking for work. It does not include active-duty military personnel or institutionalized people, such as prison inmates. Quantifying this total supply of labor is a way of determining how big the economy can get. Labor force participation rates vary significantly…

  16. Summaries of oral sessions at the XXI World Congress of Psychiatric Genetics, Boston, Massachusetts, 17-21 October 2013: state of the field

    NARCIS (Netherlands)

    Akpudo, H.; Aleksic, B.; Alkelai, A.; Burton, C.; Carillo Roa, T.; Chen, D.T.; Cheng, M.C.; Cocchi, E.; Davis, L.K.; Giori, I.G.; Hubbard, L.M.; Merikangas, A.; Moily, N.S.; Okewole, A.; Olfson, E.; Pappa, I.; Reitt, M.; Singh, A.B.; Steinberg, J.; Strohmaier, J.; Ting, T.T.; Hulzen, K.J.E. van; O'Shea, A.; DeLisi, L.E.

    2014-01-01

    The XXI World Congress of Psychiatric Genetics (WCPG), sponsored by the International Society of Psychiatric Genetics (ISPG), took place in Boston, Massachusetts, on 17-21 October 2013. Approximately 900 participants gathered to discuss the latest findings in this rapidly advancing field. The

  17. An Extra X or Y Chromosome: Contrasting the Cognitive and Motor Phenotypes in Childhood in Boys with 47,XYY Syndrome or 47,XXY Klinefelter Syndrome

    Science.gov (United States)

    Ross, Judith L.; Zeger, Martha P. D.; Kushner, Harvey; Zinn, Andrew R.; Roeltgen, David P.

    2009-01-01

    Objective: The goal of this study was to contrast the cognitive phenotypes in boys with 47,XYY (XYY) karyotype and boys with 47,XXY karyotype [Klinefelter syndrome, (KS)], who share an extra copy of the X-Y pseudoautosomal region but differ in their dosage of strictly sex-linked genes. Methods: Neuropsychological evaluation of general cognitive…

  18. Structural and Functional Neuroimaging in Klinefelter (47,XXY) Syndrome: A Review of the Literature and Preliminary Results from a Functional Magnetic Resonance Imaging Study of Language

    Science.gov (United States)

    Steinman, Kyle; Ross, Judith; Lai, Song; Reiss, Allan; Hoeft, Fumiko

    2009-01-01

    Klinefelter (47,XXY) syndrome (KS), the most common form of sex-chromosomal aneuploidy, is characterized by physical, endocrinologic, and reproductive abnormalities. Individuals with KS also exhibit a cognitive/behavioral phenotype characterized by language and language-based learning disabilities and executive and attentional dysfunction in the…

  19. Ethical and philosophical problems of moral education in the pedagogical doctrines of the second half of the XX-beginning of the XXI centuries

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    Kondrat'eva S.B.

    2018-04-01

    Full Text Available the article considers the problem of spiritually-moral education in the concepts of the teachers-innovators at the turn of XX-XXI centuries. The author focuses on the process of teacher training based on professional ethics of the teacher, focuses on the moral demands of performing professional teaching tasks.

  20. A Sociologia Digital: um desafio para o século XXI

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    Leonardo Fernandes Nascimento

    2016-04-01

    Full Text Available As características da cultura e da sociedade se alteraram profundamente na medida em que novas formas de comunicação dependentes das tecnologias digitais adquiriram um uso generalizado, modificando o modo como buscamos e produzimos informação. Entretanto, as ciências sociais ainda analisam este fenômeno de maneira tímida, negligenciando os efeitos das tecnologias digitais nas sociedades e, sobretudo, no próprio ofício da sociologia. O presente artigo descreve o modo como as mudanças tecnológicas representam um dos grandes desafios para a sociologia do século XXI, argumentando que é necessário não apenas o aperfeiçoamento de aspectos tecnológicos da pesquisa - como, por exemplo, o domínio de softwares de análise qualitativa e quantitativa e de redes sociais digitais - mas, fundamentalmente, o avanço em termos do significado epistemológico destas tecnologias para a imaginação sociológica. Na primeira seção, é apresentada a proposta da sociologia digital. Em seguida, descreve-se o fenômeno da produção massiva de dados digitais e os desafios que tal contexto coloca para a sociologia. A terceira seção avalia as implicações para a sociologia do uso de softwares. A última seção defende a necessidade urgente de uma atualização teórico-metodológica da sociologia frente à produção massiva de dados digitais. Por fim, argumenta-se que a sobrevivência da sociologia dependerá da instrumentalização tecnológica aliada a uma reflexão diante de um novo horizonte de questões da era digital.

  1. Impacto económico del ocio en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Álvarez Alday, Marta

    2012-04-01

    Full Text Available The twenty-first century has radically changed the concept of leisure. Leisure was conceived to happen only out of working hours. Nowadays we are looking for important experiences during all our lives. The Institute of Leisure Studies of the University of Deusto focuses on the human experience beyond the tangible products. We are witnessing a major cultural change in the developed world where most of the population has turned into a philosophy that could be summed up as “having less, enjoying more”. At the same time, the TIC’S revolution has propitiated a deep change in the field of the cultural leisure through new areas as consumer electronics –with its greatest exponent: video games– and virtual communities. Leisure, as a result, has become a significant economic sector with a brilliant future. We are trying to address in this article its impact in terms of production, employment and income.

    El siglo XXI es testigo de una transformación en el concepto de ocio, con un importante aumento de sus actividades con transcendencia económica. Hasta ahora el ocio se consideraba en los períodos de no trabajo y hoy se buscan experiencias importantes a lo largo de todo la vida. El Instituto de Estudios de Ocio de la Universidad de Deusto centra su interés en la experiencia humana más allá de los productos tangibles. Asistimos a un cambio cultural importante en el mundo desarrollado donde la mayor parte de la población se ha volcado en una filosofía que se podría resumir como “tener menos, disfrutar más”. Paralelamente, las TIC’s han propiciado una revolución en el campo del ocio: el ocio digital con manifestaciones como los videojuegos o las comunidades virtuales. Todo ello se traduce en un importante impacto económico en términos de generación de producción, empleo y renta que tratamos de abordar en este artículo.

  2. Operações de gênero: o filme XXY (2007 e a produção do corpo e do sexo como “naturais”. Operações de gênero: o filme XXY (2007 e a produção do corpo e do sexo como “naturais” Gender operations: the film XXY (2007 and the constitution of the body and sex as “natural”.

    Directory of Open Access Journals (Sweden)

    Luciana Fogaça Monteiro

    2009-11-01

    domínio daquilo que Butler chamou de “corpos abjetos”. A idéia aqui é, através da história trazida pelo filme, entender como concepções amalgamadas de gênero usam seu bisturi para operam tanto corpos considerados “anormais” quanto os considerados “normais”, afetando a todos.

    Based on Foucault’s concept of the body as the surface of inscription of history, and on the work of Judith Butler, this article questions the way that binary and normative conceptions of gender operate in the constitution of a field of intelligibility for subjects and their bodies. We analyse the film XXY (2007 that tells the story of Alex, an intersexual adolescent. We use the main character's story to see how gender norms act to shape bodies and limit their pleasures. We argue that subjects and bodies that do not correspond to the normative ideal are seen as “abject bodies”, following Butler’s definition. The argument is that gender norms operate on all bodies: the normal and the abject.

  3. The recovery of copper by leaching-solvent extraction-electrowinning: Towards the XXI century; La recuperacion de cobre mediante lixiviacion-extraccion con disolventes electrolisis: hacia el siglo XXI

    Energy Technology Data Exchange (ETDEWEB)

    Alguacil, F.J. [Centro Nacional de Investigaciones Metalurgicas. Madrid (Spain)

    1998-12-31

    The obtention of copper from primary resources by solvent extraction has been developed continuously over the past 25-30 years, entailing a continuous effort both of research and development and being one of the biggest successes in the industrial development of a given metal. The success of this operation was not possible without the corresponding developments, at the same time, of the two accompanying operations (leaching and electro wining), which perfectly coupled in the operational sequence. The recovery of copper by means of these hydrometallurgical processes is firmly established and being reflecting in the growing number of operational plants under construction and/or commissioned until the beginning of the XXI century. This work presents data on the successfully application of the sequence of operations on the recovery of a metal: copper (Author) 19 refs.

  4. Studies of malformation syndromes in man XXXX: multiple congenital anomalies/mental retardation syndrome or variant familial developmental pattern; differential diagnosis and description of the McDonough syndrome (with XXY son from XY/XXY father).

    Science.gov (United States)

    Neuhäuser, G; Opitz, J M

    1975-11-13

    The McDonough syndrome is a "new" MCA/MR syndrome which was found in 3 children (1 girl, 2 boys) of non-consanguineous parents. The affected children were mentally retarded (IQ 47--67) and had congenital heart defect, sternal deformity, kyphosis and craniofacila anomalies (anteverted auricles, upward slanted palpebral fissures, squint); cryptorchidism was present in the 2 boys. In addition a possible VFDP is postulated as the explanation for similar features in affected and unaffected siblings and parents. However, the McDonough syndrome may be an autosomal recessive trait with minor manifestations in heterozygotes. The klinefelter syndrome in one affected boy and a 46,XY/47,XXY chromosome constitution in the father was a coincidental finding.

  5. Scenarios of atmospheric rivers affecting Western Europe during the XXI Century

    Science.gov (United States)

    Trigo, Ricardo M.; Ramos, Alexandre M.; Tomé, Ricardo; Liberato, Margarida L. R.; Pinto, Joaquim G.

    2017-04-01

    Extreme precipitation events in Europe during the winter half of the year have major socio-economic impacts associated with floods, landslides, extensive property damage and life losses. In recent years, a number of works have shed new light on the role played by Atmospheric Rivers (ARs) in the occurrence of extreme precipitation events in Europe as was the case in major historical floods in Duero (Pereira et al., 2016) and Tagus (Trigo et al., 2015) rivers in Iberia. We analyse ARs reaching Europe, for the extended winter months (October to March), in simulations from six CMIP5 global climate models (CGMs) to quantify possible changes during the current century, with emphasis in five western European prone coastal areas. ARs are represented reasonably well in GCMs for recent climate conditions (1980-2005). Increased vertically integrated horizontal water transport is found for 2074- 2099 (RCP4.5 and RCP8.5) compared to 1980-2005, while the number of ARs is projected to double on average for the same period. These changes are robust between models and are associated with higher air temperatures and thus enhanced atmospheric moisture content, together with higher precipitation associated with extra-tropical cyclones. This suggests an increased risk of intense precipitation and floods along the Atlantic European Coasts from the Iberian Peninsula to Scandinavia (Ramos et al., 2016). References: Pereira et al., (2016) Spatial impact and triggering conditions of the exceptional hydro-geomorphological event of December 1909 in Iberia, Nat. Hazards Earth Syst. Sci., 16, 371-390. Ramos et al., (2016) Projected changes in atmospheric rivers affecting Europe in CMIP5 models, Geophys. Res. Lett., 43, 9315-9323. Trigo et al., (2015) The record precipitation and flood event in Iberia in December 1876: description and synoptic analysis, Front. Earth Sci. 2:3. Acknowledgements This work was supported by the project FORLAND - Hydrogeomorphologic risk in Portugal: driving forces

  6. Aprendizaje de lenguas europeas en las personas sordas y sordociegas en el siglo XXI. Conclusiones de las Jornadas

    Directory of Open Access Journals (Sweden)

    Claudia Portilla

    2002-01-01

    Full Text Available En el marco del «Año Europeo de las Lenguas 2001» se realizaron en la ciudad de Barcelona las Jornadas Científicas sobre Aprendizaje de las lenguas europeas en las personas sordas y sordociegas en el siglo XXI con el financiamiento de la Unión Europea, la ONCE, la FESOCA, entre otras. En líneas generales sus objetivos fueron: aumentar la concienciación acerca de las lenguas de signos europeas, promover su aprendizaje, difundir las nuevas tecnologías y establecer vínculos para el intercambio de experiencias, información y materiales multimedia. Con este fin se invitó a exponer sus trabajos a investigadores de diversos países. Entre los asistentes hubo investigadores, personas sordas y sordociegas, docentes y estudiantes en el ámbito nacional e internacional.

  7. Notas críticas sobre O Capital no século XXI de Thomas Piketty

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    ROSA MARIA MARQUES

    Full Text Available RESUMO Este artigo tem como objetivo analisar alguns aspectos do último livro de Thomas Piketty, O Capital no século XXI, do ponto de vista Marxista. São abordadas as relações que fundamentam sua análise de longo prazo da desigualdade na distribuição de renda e riqueza, seus conceitos de capital e de longo prazo, bem como sua interpretação do pensamento de Marx. Também são levantados alguns problemas existentes em sua base de dados. A análise tem como ponto de partida a crítica realizada por alguns autores Marxistas de renome, tais como Michel Husson, David Harvey e Yanis Varoufakis, bem como Robert Boyer. entre as conclusões do artigo, destaca-se o fato de o estudo de Piketty estar fracamente fundamentado teoricamente.

  8. Tecnología, competitividad y agroindustria: La revolución verde en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Freddy José Pinto Figueroa

    2003-01-01

    Full Text Available El manejo agroindustrial venezolano fue básico en eficiencia y desarrollo. Llegado el siglo XXI, se asumen decisiones basadas en adelantos tecnológicos. Nace la “Revolución Verde”, buscando solucionar problemas, ecológica y equilibradamente. La incorporación venezolana a MERCOSUR, motiva investigar experiencias de países miembros. Aspecto resaltante es acceder a tecnologías con rasgos de reinserción en economías globalizadas, bajo cambios tecnoproductivos. Esto circunscribe la producción primaria y las etapas industriales. En tres aspectos: tecnologías, paquetes, y nodos de difusión, se producen cambios, conformándose nuevos esquemas productivos, que interesa comprender bajo los aspectos: agroindustria, comercio, oferta tecnológica, tecnologías de proceso y mecanismosde difusión.

  9. Saint-Petersburg Department of Euro-Asian Geophysical Society (SPD EAGS) and it role in XXI century personnel forming

    International Nuclear Information System (INIS)

    Kal'varskaya, V.P.

    2001-01-01

    In the paper is pointed to that in the XXI century the geophysics for the most part has being the information basis in the geologic study of the Earth's interior. The status, development and practical realization of this basis depends on personnel - the specialists of a new type. It is necessary a creation and introducing of constantly acting system of quality for young geologic and geophysical scientists and specialists training on the the base of up-to-date achievement of science and technologies formation of their ideology on the ground of philosophic understanding and spirit values. In the capacity of control-marking factor in the framework of the system the most effective are conferences-competition of young specialists: geologists-geophysicists, geo-chemists and other specialists of geologic profile

  10. XIX – XXI amžiaus ideologijos kritika: K. Marxas, F. Engelsas, S. Žižekas

    OpenAIRE

    Senūta, Povilas

    2012-01-01

    XIX ir ypač XX amžius pasižymėjo stipriomis ideologijomis, kurios ne tik keitė pasaulio ir žmonių gyvenimus, bet ir turėjo įtakos visoms vėlesnėms kartoms. Šio darbo tyrimo objektas – XIX – XXI amžiaus ideologijos kritika. Bandant suprasti pačias svarbiausias ideologijas, neišvengiamai tenka gilintis į marksizmo, kaip vieną iki šių dienų svarbiausią ideologiją ir pabandyti suprasti, kur slypi marksizmo fenomenas. Žinoma, čia neišvengiamai tenka kalbėti ir apie kitas ideologijas, tokias, ku...

  11. Desafíos a la igualdad en el siglo XXI: dificultades y retos del modelo de escuela comprensiva

    Directory of Open Access Journals (Sweden)

    Rubén García Pedraza

    2015-12-01

    Full Text Available El principio de  la igualdad en educación presenta nuevos desafíos en el siglo XXI a consecuencia del impacto de la aparición de los dos nuevos fenómenos de la globalización y el postmodernismo, que ponen a prueba la excelencia educativa en igualdad de condiciones, objetivo inicial de la escuela comprensiva. El nuevo contexto del neoliberalismo y del relativismo ha supuesto el cuestionamiento de las metanarrativas existentes en la Modernidad, y ha derivado en la aparición de nuevos retos al modelo tradicional de la escuela comprensiva en el que tradicionalmente se ha encarnado en España el principio de igualdad en educación en sus dos conceptos, débil y fuerte, de equidad social. 

  12. Sakharov readings 2014: environmental problems of the XXI century. Proceedings of the 14th international scientific conference

    International Nuclear Information System (INIS)

    Dunaj, V.I.; Poznyak, S.S.; Lysukho, N.A.

    2014-05-01

    The proceeding includes materials of reports of 14-th international scientific conference 'Sakharov readings 2014: Environmental problems of XXI century', which took place 29-30 of May 2014 in the International A. Sakharov Environmental University (Minsk, Belarus). The proceeding continues abstracts about social-ecological, ecology-ethical and pedagogical problems in light of the Sakharov' ideas; medical ecology; biological ecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology and medicine; ecological monitoring, management and audit; renewable energy sources and energy efficiency; climate change and sustainable development; regional ecological problems. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

  13. Las migraciones internacionales o el gran desafío del siglo XXI

    Directory of Open Access Journals (Sweden)

    Ramón Díaz Hernández

    2013-11-01

    Full Text Available El recién estrenado Siglo XXI se enfrenta al reto de la inmigración masiva por medio de la cual se trasvasan excedentes demográficos legales y clandestinos impulsados por fiferentes calamidades desde los países en desarrollo hacia las zonas más prósperas del planeta. Este fenómeno social y económico tiene como motor impulsor los graves desequilibrios en la distribución de la riqueza. A consecuencia de estos movimientos se están produciendo cambios de todo tipo tanto en las sociedades de origen corno en las de recepción. Estos cambios pueden valorarse corno positivos para las dos partes (inmigrantes y acogedores en algunos pocos casos y muy negativos en determinados supuestos (explotación de los inmigrantes legales y sobreexplotación de los ilegales. Europa y el conjunto del llamado Mundo Occidental se debate entre el establecimiento de contingente smigratorios, integración, control de los traficantes de personas, conversi6n en ciudadanos a los que se naturalizan, medidas contra los abusos a inmigrantes y la xenofobia porque la economía capitalista está atravesando una fase expansiva. Pero ¿sucederá cuando sobrevenga un ciclo recesivo? ¿Serán de nuevo los inmigrantes y las minorías étnicas los chivos expiatorios de las desventuras económicas y del malestar social? Como anticipo como anticipo preventivo conviene desde ahora iniciar un debate sobre los retos futuros de la inmigración desde todos los puntos de vista. El presente trabajo pretende contribuir positivamente a ese debate en un asunto de extraordinaria responsabilidad por su complejidad y por la realidad a veces dramática de nuestro entorno geográfico más inmediato.The newly born twenty first century faces the challenge of massive immigration through which legal and clandestine demographic excesses are transferred. Immigrants are compelled by different calamities to displacement from developing countries to more prosperous, areas of the planet. This social and

  14. PREFACE: 21st Latin American Symposium on Solid State Physics (SLAFES XXI)

    Science.gov (United States)

    Aguiar, J. Albino

    2014-04-01

    The Latin American Symposium on Solid State Physics (SLAFES) started in Caracas-Venezuela, and over time the symposia have taken place in 9 different Latin American countries. The last five events took place in Mérida-Venezuela (2002), Havana-Cuba (2004), Puebla-Mexico (2006), Puerto Iguazú-Argentina (2008) and Maragogi-Brazil (2011). During the last years, in the different SLAFES editions, the aim has been to bring together researches from Latina America and invite renowned scientists from around the world to a unique forum to discuss the latest developments regarding Solid state Physics. The 21st Latin American Symposium on Solid State Physics (SLAFES XXI) was held in Villa de Leyva-Colombia, from September 30 to October 04, 2013. The 21st SLAFES version featured the participation of experts in various areas of Solid State Physics from countries such as Belgium, Germany, United States, Spain, Ireland, Chile, Argentina and Brazil, had 270 submitted works and was attended by 140 researchers. The development of this event was made possible by financial support from the Universidad Pedagógica y Tecnológica de Colombia, Universidad Nacional de Colombia, Universidad del Norte-CO, Universidad de Magdalena-CO, Universidade Federal de Pernambuco-BR and the Academia Colombiana de Ciencias Exatas, Naturales y Física. Editors Professor J Albino Aguiar Departamento de Física Universidade Federal de Pernambuco 50670-901 Recife PE Brazil e-mail: albino@df.ufpe.br Professor Jairo Roa-Rojas Grupo de Física de Nuevos Materiales Departamento de Física Universidad Nacional de Colombia A.A. 5997 Bogotá DC, Colombia e-mail: jroar@unal.edu.co Professor Carlos Arturo Parra Vargas Grupo Física de Materiales Escuela de Física Universidad Padagógica y Tecnológica de Colombia Tunja Colombia e-mail: carlos.parra@uptc.edu.co Professor David A Land\\'i nez Téllez Grupo de Física de Nuevos Materiales Departamento de Física Universidad Nacional de Colombia A.A. 5997 Bogotá DC

  15. Nuclear forces

    International Nuclear Information System (INIS)

    Holinde, K.

    1990-01-01

    In this paper the present status of the meson theory of nuclear forces is reviewed. After some introductory remarks about the relevance of the meson exchange concept in the era of QCD and the empirical features of the NN interaction, the exciting history of nuclear forces is briefly outlined. In the main part, the author gives the basic physical ideas and sketch the derivation of the one-boson-exchange model of the nuclear force, in the Feynman approach. Secondly we describe, in a qualitative way, various necessary extensions, leading to the Bonn model of the N interaction. Finally, points to some interesting pen questions connected with the extended quark structure of the hadrons, which are topics of current research activity

  16. La alfabetización informativa tecnológica: estrategia fundamental en las bibliotecas del Siglo XXI

    Directory of Open Access Journals (Sweden)

    Juan Miguel Palma Peña

    2009-01-01

    Full Text Available La sociedad del conocimiento y las bibliotecas del siglo XXI son espacios de interacción digital yvirtual necesarios. La biblioteca, para estar en concordancia con los adelantos tecnológicos que sepresentan a diario, los ha aplicado en sus actividades y funciones sustantivas. Sin embargo, estosdesarrollos se presentan a una gran velocidad, lo cual produce que la sociedad conozca poco respectoa la forma de cómo aprovechar al máximo estos recursos tecnológicos. Ante esto, la biblioteca deberáser la institución que se postule como intermediaria entre el conocimiento, los avances tecnológicos yla sociedad. Debido a que será la que proporcione las herramientas y las estrategias necesarias paraque la comunidad de usuarios sea autosuficiente, utilicen al máximo los recursos tecnológicos quetiene a su servicio, y así, satisfagan sus demandas informativas. El objetivo del presente trabajo esreflexionar acerca del por qué la alfabetización informativa tecnológica (AIT como parte de laalfabetización informativa (AI se debe establecer como estrategia esencial de las bibliotecas del sigloXXI. En primer plano, se analiza el estado actual de las bibliotecas. La segunda parte, aborda laincursión de las TIC’s en los servicios bibliotecarios y sus próximas tendencias. Finalmente, seanaliza la AIT derivada de la AI, así como su aplicación y desarrollo en las bibliotecas contemporáneasy futuras.

  17. La configuración geohistórica del territorio en la provincia del Chaco y los proyectos de transporte y energía en el Siglo XXI

    Directory of Open Access Journals (Sweden)

    Mariana Schweitzer

    2014-12-01

    Full Text Available RESUMEN Este artículo presenta la configuración del territorio en la Provincia del Chaco (Argentina como reflejo del papel desempeñado en los modelos de acumulación dominantes desde el Virreinato del Alto Perú hasta la actualidad. Se analizan los procesos de ocupación poblacional, la expansión de las actividades productivas y el avance de las redes viales, ferroviarias, fluviales y energéticas. Para el siglo XXI se han identificado planes y proyectos de transporte y de energía que involucran al territorio chaqueño, tanto aquellos formulados desde instancias supranacionales como los priorizados por agendas nacionales y provinciales, considerando que podrían modificar la estructura territorial y las oportunidades de desarrollo de esta región. Así se considera la posibilidad de que haya un cambio para los territorios que históricamente han quedado relegados y que hoy pasarían a ocupar un nuevo lugar en la geografía de los proyectos de interconexión a escala regional, y que movilizan oportunidades para nuevos proyectos a escala local. ABSTRACT This paper analyses territorial configuration in the Province of Chaco (Argentine, reflecting the role played in dominant accumulation models, from the Viceroyalty of Peru Alto until today. Population processes, productive activities expansion and networks construction (roads, railways, ports, energy installations, are analyzed. For the XXI century, transport and energy plans and projects, involving and the Chaco territory, have been identified. We have taken into account those initiatives promoted from supranational organizations as well as those prioritized in national and provincial agendas, considering they could change territorial structure and development opportunities for this region. In this way we consider the possibility of change for those territories that have been historically relegated and today they would occupy a new place in the geography of regional interconnection projects

  18. Liderazgo educativo y retos de la educación superior en el siglo XXI: hacia la visión y la acción

    Directory of Open Access Journals (Sweden)

    Ana Monge

    2003-06-01

    Full Text Available In this article, we are developing some ideas and proposals for an educational leadership exercise in order to assume higher education´s main challenges in the XXI century. In this reflection we are taking into consideration the universities´commitments in the construction of more fair and equitable societies according to its necessities and demands in a historical moment distinguished by globalization and scientific technological development. Therefore, we have to emphasize the permanent links between education and economic and social development; besides, we take back some of the ideas presented at the higher education world conference in 1998, which evidenced the implications of the main challenges that education faces in the XXI century. For that reason it is of vital importance, a type of leadership that responds effectively to those challenges through belligerent, participative and precise actions.

  19. NOAA's National Snow Analyses

    Science.gov (United States)

    Carroll, T. R.; Cline, D. W.; Olheiser, C. M.; Rost, A. A.; Nilsson, A. O.; Fall, G. M.; Li, L.; Bovitz, C. T.

    2005-12-01

    NOAA's National Operational Hydrologic Remote Sensing Center (NOHRSC) routinely ingests all of the electronically available, real-time, ground-based, snow data; airborne snow water equivalent data; satellite areal extent of snow cover information; and numerical weather prediction (NWP) model forcings for the coterminous U.S. The NWP model forcings are physically downscaled from their native 13 km2 spatial resolution to a 1 km2 resolution for the CONUS. The downscaled NWP forcings drive an energy-and-mass-balance snow accumulation and ablation model at a 1 km2 spatial resolution and at a 1 hour temporal resolution for the country. The ground-based, airborne, and satellite snow observations are assimilated into the snow model's simulated state variables using a Newtonian nudging technique. The principle advantages of the assimilation technique are: (1) approximate balance is maintained in the snow model, (2) physical processes are easily accommodated in the model, and (3) asynoptic data are incorporated at the appropriate times. The snow model is reinitialized with the assimilated snow observations to generate a variety of snow products that combine to form NOAA's NOHRSC National Snow Analyses (NSA). The NOHRSC NSA incorporate all of the available information necessary and available to produce a "best estimate" of real-time snow cover conditions at 1 km2 spatial resolution and 1 hour temporal resolution for the country. The NOHRSC NSA consist of a variety of daily, operational, products that characterize real-time snowpack conditions including: snow water equivalent, snow depth, surface and internal snowpack temperatures, surface and blowing snow sublimation, and snowmelt for the CONUS. The products are generated and distributed in a variety of formats including: interactive maps, time-series, alphanumeric products (e.g., mean areal snow water equivalent on a hydrologic basin-by-basin basis), text and map discussions, map animations, and quantitative gridded products

  20. Validating Future Force Performance Measures (Army Class): Concluding Analyses

    Science.gov (United States)

    2016-06-01

    32 Table 3.10. Descriptive Statistics and Intercorrelations for LV Final Predictor Factor Scores...55 Table 4.7. Descriptive Statistics for Analysis Criteria...Soldier attrition and performance: Dependability (Non- Delinquency ), Adjustment, Physical Conditioning, Leadership, Work Orientation, and Agreeableness

  1. Las relaciones entre Globalización, Medio Ambiente y Salud: Retos para la enfermería en el siglo XXI The globalization, environment and health relationship: Challenges for nursing in the XXI Century

    Directory of Open Access Journals (Sweden)

    Liliana Angel Vargas

    2010-09-01

    Full Text Available Este artículo surge de la necesidad de discutir los diversos impactos generados por el proceso de globalización en la medida que interfiere en las relaciones políticas, económicas, sociales, culturales, que se expresan en degradación ambiental y constituyen fuertes amenazas para la salud de individuos y comunidades a nivel local y global. Se propone estimular la reflexión a partir del análisis interdisciplinar del conocimiento producido sobre macro categorías como globalización, medio ambiente y salud y su articulación con el ejercicio profesional del enfermero. Metodológicamente se trata de una sistematización a partir de fuentes bibliográficas primarias y secundarias disponibles inclusive en bases indexadas. Podemos concluir que el ejercicio profesional de enfermería en el siglo XXI exige enfrentar el desafío de (redimensionar el cuidado, que debe ser entendido no como un acto y si como una actitud cuidadora y un compromiso con la defensa de la vida de ésta y las futuras generaciones.This article is a result of the necessity of discussing the many impacts that the globalization process, since it affects way the political, economical and social relations, that are expressed in the environmental degradation and becomes a strong threat to the health of individuals and communities in the local and global levels. Intends to stimulate a reflection from the interdisciplinary analysis of the developed knowledge about categories like globalization, environment and health, and their articulation with the professional nursing practice. In a methodological point of view, it is systematization from primary and secondary bibliographic sources including indexed ones. We conclude that the professional nursing practice in the XXI century demands confronting the challenge of resize the concept of nursing care, must be understood not as an act but as a caring actitude and a commitment to the protection of life of this and future's generations.

  2. UN ECE-Convention on long-range transboundary air pollution. Task Force on Reactive Nitrogen. Systematic cost-benefit analysis of mitigation measures for agricultural ammonia emissions, supporting national costing analysis; UN ECE-Luftreinhaltekonvention. Task Force on Reactive Nitrogen. Systematische Kosten-Nutzen-Analyse von Minderungsmassnahmen fuer Ammoniakemissionen in der Landwirtschaft fuer nationale Kostenabschaetzung

    Energy Technology Data Exchange (ETDEWEB)

    Doehler, Helmut; Eurich-Menden, Brigitte; Roessler, Regina; Vandre, Robert; Wulf, Sebastian [Kuratorium fuer Technik und Bauwesen in der Landwirtschaft e.V. (KTBL), Darmstadt (Germany)

    2011-07-01

    In this project, the methods for the determination of the expenses for the reduction of agricultural ammonia emissions were updated, and the costs of selected, representative mitigation measures suitable for Germany's agriculture were newly calculated. The reduction costs are determined based on the ratio of the extra costs for the reduction measure and the emission reduction in comparison with a reference system. Protein-adapted feeding in pig fattening generally leads to lower expenses for feedstuff, which provides negative reduction costs (- Euro 3.5 to - Euro 13.5 per kg of NH{sub 3} depending on the reference system). Pig fattening in naturally ventilated housing causes reduction costs of Euro 9.2 per kg of NH{sub 3} as compared with forced-ventilated animal houses. However, this amount cannot always be exclusively attributed to ammonia emission reduction (allocation) because naturally ventilated houses are generally built for the improvement of animal welfare and animal health. Single and multiple-stage air purification techniques in forced-ventilated pig fattening houses are a technically efficient, though costintensive reduction measure (Euro 4,6 - Euro 8,6 per kg of NH{sub 3}). Solid covers for pig slurry stores (concrete ceiling, tent) are characterized by high investment expenses and a long service life causes moderate reduction costs (Euro 1.1 - Euro 2.5 per kg of NH{sub 3}). Floating covers (plastic sheet, granules) are almost cost-neutral given reduction costs of Euro 0.3 to Euro 0.9 per kg of NH{sub 3} (pig slurry) if the fertilizer value of the conserved nitrogen is included in the calculation. Cattle slurry requires significantly higher extra costs for the covering of slurry stores because the natural floating cover itself reduces emissions (Euro 1.3 to Euro 12 per kg of NH{sub 3}). If annual spreading performances are low (1,000 to 3,000 m{sup 3}/a), only promptly incorporation of cattle and pig slurry is cost-effective. If spreading

  3. Force measurements for levitated bulk superconductors

    International Nuclear Information System (INIS)

    Tachi, Y.; Sawa, K.; Iwasa, Y.; Nagashima, K.; Otani, T.; Miyamoto, T.; Tomita, M.; Murakami, M.

    2000-01-01

    We have developed a force measurement system which enables us to directly measure the levitation force of levitated bulk superconductors. Experimental data of the levitation forces were compared with the results of numerical simulation based on the levitation model that we deduced in our previous paper. They were in fairly good agreement, which confirms that our levitation model can be applied to the force analyses for levitated bulk superconductors. (author)

  4. Force measurements for levitated bulk superconductors

    Energy Technology Data Exchange (ETDEWEB)

    Tachi, Y. [Department of Electrical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama (Japan); ISTEC, Superconductivity Research Laboratory, 1-16-25 Shibaura, Minato-ku, Tokyo (Japan). E-mail: tachi at istec.or.jp; Uemura, N. [Department of Electrical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama (Japan); ISTEC, Superconductivity Research Laboratory, 1-16-25 Shibaura, Minato-ku, Tokyo (Japan); Sawa, K. [Department of Electrical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama (Japan); Iwasa, Y. [Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, MA (United States); Nagashima, K. [Railway Technical Research Institute, Hikari-cho, Kokubunji-shi, Tokyo (Japan); Otani, T.; Miyamoto, T.; Tomita, M.; Murakami, M. [ISTEC, Superconductivity Research Laboratory, 1-16-25 Shibaura, Minato-ku, Tokyo (Japan)

    2000-06-01

    We have developed a force measurement system which enables us to directly measure the levitation force of levitated bulk superconductors. Experimental data of the levitation forces were compared with the results of numerical simulation based on the levitation model that we deduced in our previous paper. They were in fairly good agreement, which confirms that our levitation model can be applied to the force analyses for levitated bulk superconductors. (author)

  5. Reflexões acerca do Ensino de Pediatria no Século XXI: o Cenário Brasileiro

    Directory of Open Access Journals (Sweden)

    Andréia de Santana Silva Moreira

    Full Text Available RESUMO Introdução O Relatório Flexner é considerado o ponto de partida para a discussão do ensino da medicina no século XX. Após amplas discussões, em 2001, o Ministério da Educação homologa as Diretrizes Curriculares Nacionais do Curso de Graduação em Medicina (DCN. Tais diretrizes objetivam a formação de um médico generalista, humanista, reflexivo, crítico, que atue como promotor da saúde integral do ser humano. A Pediatria é a área da medicina onde a promoção da saúde integral é de extrema importância, pois a criança é o adulto do futuro. Objetivo Discutir as questões: O que se espera do médico geral, em relação à Pediatria, no século XXI? E a questão dela derivada: Mudanças nas diretrizes para o ensino de Pediatria são necessárias a partir das DCN? Métodos Ensaio reflexivo com base em dois documentos: Diretrizes Curriculares Nacionais do Curso de Graduação em Medicina (DCN e Diretrizes para o Ensino de Pediatria (DEP propostas por Eduardo Marcondes. Discussão Este artigo discorre a respeito das percepções de Marcondes acerca do ensino de Pediatria, correlacionando-as com as DCN e discutindo aspectos importantes na formação do médico, tais como: promoção, prevenção, proteção e reabilitação em saúde e educação médica em Pediatria. Considerações finais As Diretrizes para o Ensino de Pediatria propostas por Marcondes em 1993 parecem se manter extremamente atuais no contexto brasileiro do século XXI, ressalvando-se apenas diferenças de mortalidade e morbidade infantil.

  6. O ensino de jornalismo no Paraná: desafios para o século XXI

    Directory of Open Access Journals (Sweden)

    Luis Otávio Dias

    2014-07-01

    Full Text Available RESUMO Este artigo apresenta as primeiras reflexões sobre projeto de pesquisa que tem como objetivo analisar o ensino do jornalismo no estado do Paraná, na região sul do Brasil. Esse estudo está em andamento no programa de doutorado em Educação da Universidade Federal do Paraná e dará importante contribuição à atividade acadêmica desenvolvida em conjunto com a Universidade de Lyon II, na França, cujo  tema é o das Novas Práticas Jornalísticas. Pretende-se com a proposta esboçar as características do ensino de jornalismo das universidades públicas e particulares, considerando as práticas pedagógicas frente às Novas Tecnologias da Informação e da Comunicação e a formação do profissional para o século XXI. Isso tem exigido cada vez preparado do jornalista  para um mercado de trabalho de multiplataformas, com novas possibilidades de publicações e acesso ilimitado de leitores à informação. Nessa fase inicial, a pesquisa concentra-se em problemas-chave, como analisar as matrizes curriculares dos cursos de jornalismo das universidades; identificar disciplinas que preparem o aluno para atuar em um ambiente tecnológico; domínio de técnicas e ferramentas do jornalismo digital; e observar as práticas jornalísticas no cotidiano das empresas de comunicação paranaenses. Considera-se, ainda, que a presente pesquisa encontra um cenário de incertezas e inquietações, no momento em que as instituições de ensino superior enfrentam a difícil tarefa de elaborar um projeto pedagógico de acordo com as novas Diretrizes Curriculares Nacionais para o curso de graduação em Jornalismo. Tais diretrizes foram homologadas pelo Ministério da Educação, em setembro de 2013, com prazo de implantação até 2015.   Palavras-chave: Jornalismo. Comunicação. Tecnologias. Currículo.Universidades.                             ABSTRACT This article presents the first reflections on a research project that aims to

  7. El Negocio Renta ble del Siglo XXI: La Trata de Personas, el caso de los esclavos colombianos resca tados en Argentina en 2013 - The Profitable Business of XXI Century: Human Trafficking, the case of Colombian slaves rescued in Argentinain 2013

    Directory of Open Access Journals (Sweden)

    TORRES ARTEAGA, Lyda María

    2014-06-01

    Full Text Available It’s amazing being in the XXI century keep talking about phenomena such as slavery, which has pushed the boundaries of time and for generations has kept among us, in relation to new modern slavery cases of Bolivia and Brazil are widely acknowledged, without But today manifest more strongly sensitize us different facts on the issue and shows us even closer than we had imagined. Precisely in 2013 were able to rescue a group of about 200 Colombians were subjected under a network trafficking that led to Argentina to be exploited at work , a situation that calls us to be more vigilant against the new form of slavery given today through deception and bids to improve the standard of living . The network of Colom- bians kept under slave labor more than 200 nationals, was made up of 23 people, who were responsible for making contact with victims and move them to Argentina under the delusion that they would work in the form of cooperative once arrived in the country had no chance of return. It should be mentioned that in recent years, trafficking for labor and sexual exploitation has been placed on the political and social agenda, thanks to the media exposure they acquired different cases around the world, which has led it to be a topic of wide interest and joint work between civil society, state and international agencies and / or foundations of the same charge .

  8. Informalidad del siglo XXI. Características de la oferta informal de suelo y vivienda en Bogotá durante la primera década del siglo XXI

    Directory of Open Access Journals (Sweden)

    Angu00E9lica Patricia Camargo Sierra

    2012-01-01

    Full Text Available El artículo caracteriza las condiciones de la oferta informal de suelo y vivienda durante la primera década del siglo xxi en Bogotá, en cuanto a magnitud y localización del crecimiento de la urbanización informal (nuevos asentamientos en la periferia y densificación informal de áreas consolidadas, condiciones habitacionales de viviendas en ocupaciones recientes y las características de funcionamiento en términos de mercado del suelo. El panorama de la última década se reconstruyó con base en análisis de aerofotografías, cuantificación de datos censales y análisis de datos de las entidades de planificación y control a la urbanización informal. Los resultados sugieren que debido al agotamiento relativo del suelo en Bogotá, entre otros aspectos, las dinámicas a partir de las cuales opera el mercado informal han experimentado cambios frente a décadas anteriores, pues el crecimiento en densificación de asentamientos en la ciudad consolidada cobra mayor importancia relativa frente al desarrollo informal en las periferias, pero a la vez se intuye una expansión de la informalidad que trasciende el perímetro distrital.

  9. Educational Policies and new Technologies: a Challenge of the XXI Century Políticas Educacionais e novas Tecnologias: um Desafio do Século XXI

    Directory of Open Access Journals (Sweden)

    Vera Lúcia Lopes Cristovão

    2012-04-01

    Full Text Available Nowadays, there are many technological resources that make it possible the interaction and the development of the foreign languages learning processes. These tools can be used by teachers and students in the construction of knowledge. It is not unusual to hear that teachers need to update themselves, go further than the blackboard and the chalk, and that both digital literacy and preparation for the technological era have become necessary. This research aims to verify what educational policies have been developed, how it is carried out the education of pre-service and in-service teacher’s of foreign language for the pedagogical use of new technologies, and what investments have been made in didactic and technological resources of schools. Araújo’s (2007, Araújo and Dieb’s (2009, Marcuschi and Xavier’s (2010, Souza-Lima’s (2010 and Gomes’s studies are the main theoretical sources for this work. For the analysis, Data was collected by using a questionnaire from which the contribution of Foreign Language teachers of different public schools in the Regional Teaching Center of the city of Apucarana –Paraná was analysed. These teacher’s voices have given us basis for a rich reflection about the contradictions that exist among the curricular guidelines and the conditions that are offered to accomplish them.Atualmente, há muitos recursos tecnológicos que possibilitam a interação e o desenvolvimento de processos de aprendizagem de línguas estrangeiras: ferramentas que podem ser utilizadas por professores e alunos na construção do conhecimento. Não é raro o discurso de que os professores precisam atualizar-se, de que necessitam ir além da lousa e do giz e que se fazem necessários o letramento digital e a preparação para uma era tecnológica. Nosso objetivo, com esta pesquisa, é verificar que políticas educacionais estão sendo implementadas nas escolas nesse sentido, como se realiza a formação inicial e continuada dos

  10. Coriolis Force

    Science.gov (United States)

    Marciuc, Daly; Solschi, Viorel

    2017-04-01

    Understanding the Coriolis effect is essential for explaining the movement of air masses and ocean currents. The lesson we propose aims to familiarize students with the manifestation of the Coriolis effect. Students are guided to build, using the GeoGebra software, a simulation of the motion of a body, related to a rotating reference system. The mathematical expression of the Coriolis force is deduced, for particular cases, and the Foucault's pendulum is presented and explained. Students have the opportunity to deepen the subject, by developing materials related to topics such as: • Global Wind Pattern • Ocean Currents • Coriolis Effect in Long Range Shooting • Finding the latitude with a Foucault Pendulum

  11. Achondroplasia with 47, XXY karyotype: a case report of the neonatal diagnosis of an extremely unusual association.

    Science.gov (United States)

    Ros-Pérez, Purificación; Regidor, Francisco J; Colino, Esmeralda; Martínez-Payo, Cristina; Barroso, Eva; Heath, Karen E

    2012-06-29

    The association of achondroplasia and Klinefelter syndrome is extremely rare. To date, five cases have been previously reported, all of them diagnosed beyond the postnatal period, and only one was molecularly characterized. We describe the first case of this unusual association diagnosed in the neonatal period, the clinical findings and the molecular studies undertaken. The boy was born at term with clinical and radiological features indicating the diagnosis of achondroplasia or hypochondroplasia combined with the prenatal karyotype of Klinefelter syndrome (47,XXY). Neonatal FGFR3 mutation screening showed that the newborn was heterozygous for the classic achondroplasia G340R mutation. Microsatellite marker analysis showed that the sex chromosome aneuploidy had arisen from a non-disjunction error in paternal meiosis I, with a recombination event in the pseudoautosomal region 1 (PAR1). Specific mutation analysis is appropriate to confirm the clinical diagnosis of achondroplasia for appropriate diagnosis, prognosis, and genetic counseling, especially when the karyotype does not explain the abnormal prenatal sonographic findings. In the present case, a recombination event was observed in the PAR1 region, although recombinational events in paternally derived Klinefelter syndrome cases are much rarer than expected.

  12. Achondroplasia with 47, xxy karyotype: a case report of the neonatal diagnosis of an extremely unusual association

    Directory of Open Access Journals (Sweden)

    Ros-Pérez Purificación

    2012-06-01

    Full Text Available Abstract Background The association of achondroplasia and Klinefelter syndrome is extremely rare. To date, five cases have been previously reported, all of them diagnosed beyond the postnatal period, and only one was molecularly characterized. We describe the first case of this unusual association diagnosed in the neonatal period, the clinical findings and the molecular studies undertaken. Case presentation The boy was born at term with clinical and radiological features indicating the diagnosis of achondroplasia or hypochondroplasia combined with the prenatal karyotype of Klinefelter syndrome (47,XXY. Neonatal FGFR3 mutation screening showed that the newborn was heterozygous for the classic achondroplasia G340R mutation. Microsatellite marker analysis showed that the sex chromosome aneuploidy had arisen from a non-disjunction error in paternal meiosis I, with a recombination event in the pseudoautosomal region 1 (PAR1. Conclusion Specific mutation analysis is appropriate to confirm the clinical diagnosis of achondroplasia for appropriate diagnosis, prognosis, and genetic counseling, especially when the karyotype does not explain the abnormal prenatal sonographic findings. In the present case, a recombination event was observed in the PAR1 region, although recombinational events in paternally derived Klinefelter syndrome cases are much rarer than expected.

  13. El orden mundial a inicios del siglo XXI: orígenes, caracterización y perspectivas futuras

    Directory of Open Access Journals (Sweden)

    Juan José Palacios L.

    2011-01-01

    Full Text Available ¿Cómo está organizado el mundo a principios de la segunda década del siglo xxi? ¿Cuál es la estructura y el carácter del orden geopolítico que rige hoy? ¿De qué elementos está constituido? ¿Cómo se conformó? ¿En qué puede devenir en el futuro? ¿Qué factores propulsan estos procesos? Esas interrogantes han estado en el centro de la problemática y la temática de las relaciones internacionales desde su establecimiento como disciplina y surgen con fuerza hoy en vista de que el esquema internacional que tomó forma después de la Guerra Fría ha sido modificado en la última década por una serie de acontecimientos que han alterado su estructura y dinámica de funcionamiento. El propósito del presente trabajo es realizar un esfuerzo orientado a encontrarles respuesta en referencia al orden que priva actualmente en el mundo y destacar las implicaciones teóricas y prácticas de los hallazgos resultantes.

  14. A novel CDKL5 mutation in a 47,XXY boy with the early-onset seizure variant of Rett syndrome.

    Science.gov (United States)

    Sartori, Stefano; Di Rosa, Gabriella; Polli, Roberta; Bettella, Elisa; Tricomi, Giovanni; Tortorella, Gaetano; Murgia, Alessandra

    2009-02-01

    Mutations of the cyclin-dependent kinase-like 5 gene (CDKL5), reported almost exclusively in female subjects, have been recently found to be the cause of a phenotype overlapping Rett syndrome with early-onset epileptic encephalopathy. We describe the first CDKL5 mutation detected in a male individual with 47,XXY karyotype. This previously unreported, de novo, mutation truncates the large CDKL5 COOH-terminal region, thought to be crucial for the proper sub-cellular localization of the CDKL5 protein. The resulting phenotype is characterized by a severe early-onset epileptic encephalopathy, global developmental delay, and profound intellectual and motor impairment with features reminiscent of Rett syndrome. In light of the data presented we discuss the possible phenotypic modulatory effects of the supernumerary wild type X allele and pattern of X chromosome inactivation and stress the importance of considering the causal involvement of CDKL5 in developmentally delayed males with early-onset seizures. (c) 2009 Wiley-Liss, Inc.

  15. Changes in beverage consumption among adolescents from public schools in the first decade of the century XXI.

    Science.gov (United States)

    Monteiro, Luana Silva; Vasconcelos, Thaís Meirelles de; Veiga, Gloria Valéria da; Pereira, Rosângela Alves

    2016-01-01

    To evaluate the changes in beverage consumption among adolescents between 2003 and 2008. Two school-based cross-sectional studies were carried out with public school students (12 to 19 years-old) from Niterói, Rio de Janeiro, Brazil. Data from three food records were used to estimate daily, weekdays and weekend average consumption (volume and percent contribution for total daily energy intake) of milk and milk-based beverages, sugar sweetened beverages, fresh squeezed fruit juices, caffeinated and alcoholic beverages. Beverage consumption age-adjusted means for weekdays and weekends were compared using linear regression (Generalized Linear Models - GLM). A total of 433 adolescents were examined in 2003, and 510 in 2008. The prevalence of overweight was 17% in 2003 and 22% in 2008 (p > 0.05). Milk was the most consumed beverage, being reported by 89% of adolescents, followed by sodas (75%). In general, in the five-year period, there was an increase in the prevalence of consumption of alcoholic drinks, guarana syrup refreshment, and processed fruit drinks, especially on weekdays. The soft drink was the largest contributor to the total energy consumption, corresponding on average to 4% of daily energy intake. The main changes in the beverage consumption among adolescents from Niterói, in the first decade of the XXI century, were the tendency to reduce the consumption of milk and the increase in the consumption of processed and alcoholic beverages.

  16. O servidor público no mundo do trabalho do século XXI El empleado público en el mundo del trabajo del siglo XXI The public servant in the labor world Of The 21St century

    Directory of Open Access Journals (Sweden)

    Carla Vaz dos Santos Ribeiro

    2013-01-01

    Full Text Available O texto aborda as repercussões do discurso depreciativo da sociedade dirigido ao servidor público - em muito intensificado pelas mutações no mundo do trabalho na virada do século XX para o XXI - na subjetividade dessa categoria e investiga como esses trabalhadores convivem com a utilização corrente de estereótipos negativos que desqualificam e desvalorizam a sua atividade laboral. O texto discute ainda como a falta de reconhecimento e de valorização interfere no sentido atribuído pelos servidores públicos à sua vida profissional. O texto analisa também as transformações ocorridas no setor público nas últimas décadas, em especial, as mudanças provocadas a partir da implementação da Reforma do Estado, de 1995, no Brasil, constata que a crise do Estado-providência influencia de maneira decisiva as políticas, as estruturas e a cultura das organizações estatais e identifica um novo cenário que gera significativos impactos na produção da subjetividade da categoria; por fim, questiona se ainda há espaço para o servidor público no mundo do trabalho contemporâneo.El texto aborda las repercusiones del discurso despectivo de la sociedad dirigido al empleado público - en mucho intensificado por las mutaciones en el mundo del trabajo en el cambio del siglo XX para el XXI - en la subjetividad de esa categoría e investiga como esos trabajadores conviven con la utilización corriente de estereotipos negativos que descalifican y desvalorizan su actividad laboral. El texto discute también como la falta de reconocimiento y de valorización interfiere en el sentido atribuido por los servidores públicos a su vida profesional. El texto analiza también las transformaciones ocurridas en el sector público en las últimas décadas, en especial, los cambios provocados desde la implementación de la Reforma del Estado, de 1995, en Brasil, constata que la crisis del Estado-providencia influencia de manera decisiva las políticas, las

  17. El modelo del profesional y el curriculum en la formación del ingeniero del siglo XXI // The model of the professional and the curriculum in the education of the engineer of the century XXI

    Directory of Open Access Journals (Sweden)

    Dester Perdomo Pérez

    1998-01-01

    Full Text Available Si bien es cierto que los cambios que han ocurrido en la ciencia y la tecnología en las últimas décadas han tenido una influenciaimportante en todas las carreras de la ingeniería, los cambios que aún manifiestan los curriculum para la mayoría de lasuniversidades del mundo que se dedican a la formación de ingenieros, no han cambiado de la misma forma, esto en algunasopiniones se debe a que los contenidos de las Ciencias Naturales, las Matemáticas y las propias Ciencias de la Ingeniería,mantienen en lo fundamental contenidos semejantes, pero, es necesario detenerse a analizar como ha cambiado el puesto detrabajo de los ingenieros en los últimos años y como se puede predecir debe cambiar según las perspectivas que anuncia elparadigma de la primera década del siglo XXI. En estos momentos se plantean a los ingenieros, niveles de exigencia superioresen su gestión, soluciones más rápidas, con mayores niveles de fiabilidad y como se dice en las nuevas concepciones de calidadque no solo logren satisfacer las expectativas del usuario, sino que también lo hagan sentir contentos de la inversión querealizó.Estos elementos entre otros aspectos que se analizan hacen necesario montar carreras de ingeniería sobre sistemascomputacionales y no como se pensaba hace unos años, en solo la necesidad de incluir en los curriculum una o dos asignaturasrelacionadas con las técnicas de computo.____________________________________________________________________AbstractEven though it is certain that the occurred changes in the science and technology in the last decades have had an importantinfluence in all engineering careers, the changes that yet express the curriculum for most of the universities in the worlddevoted to the engineers training, they have not changed in the same way, this in some opinions is due to the contents of theNatural Sciences, Mathematics and the own Sciences of the Engineering, maintain the essential contained very similar, but

  18. Proceedings of the international conference of young scientists and students 'Ecological problems of XXI century'

    International Nuclear Information System (INIS)

    Milyutin, A.A.

    2001-05-01

    The present publication represents the collection of materials of a scientific conference of the young scientists and students, which was devoted to 80-year-old anniversary of Andrej Sakharov. The ecological problems were viewed on the following directions: ecology, radioecology, ecological monitoring, ecological information systems, eco priority power engineering, eco biology, medical ecology, molecular medicine. The materials of a conference are intended for wide circle of the experts occupied with scientific and practical activity. Individual papers (37) have been analysed and submitted to the database

  19. Latin America in the World Economy and Trade at the Beginning of the XXI st Century

    Directory of Open Access Journals (Sweden)

    A R Massarova

    2013-12-01

    Full Text Available The article deals with the role of Latin America in the world economy during the pre- and post-crisis period. It analyses the dynamics of the indicators that define social and economic capacity of the region and the impact of the world financial crisis in different types of the region's countries. The article examines in details structural and regional shifts in the foreign trade of Latin America. The analysis revealed the major problems of the region's foreign trade (branch and regional structure and allowed to set out the ways of their decisions through the diversification of Latin American export and the intensification of intra-regional trade.

  20. Phases and Actions of the Evolution of the Concept of Quality in Canada and Australia – A Theoretical Modelling of the Development of Knowledge in Business Performance in the XXI Century - The Approach to Excellence

    Directory of Open Access Journals (Sweden)

    Cristina Raluca Popescu

    2015-05-01

    Full Text Available In the paper “Phases and Actions of the Evolution of the Concept of Quality in Canada and Australia – A Theoretical Modelling of the Development of Knowledge in Business Performance in the XXI Century - The Approach to Excellence” the authors present the basic features of the phases and actions of the evolution of the concept of quality in Canada and Australia, as a theoretical modelling of the development of knowledge in business performance in the XXI century in order to improve the organizational processes so that excellence can be achieved.

  1. PODER JUDICIÁRIO E DIREITOS FUNDAMENTAIS NO SÉCULO XXI: UMA APROXIMAÇÃO ENTRE NORMATIVISMO E MATERIALISMO HISTÓRICO

    OpenAIRE

    Lima, Monique Falcão; Universidade do Estado do Rio de Janeiro, UERJ

    2015-01-01

    Este trabalho se apresenta como um ensaio acadêmico e tem como objetivo apresentar o contexto histórico-social que deu origem a um direito constitucional no séc. XXI que tem uma característica específica: integrar materialismo histórico e normatividade. Para tanto, apresentamos a contextualização histórica do desenvolvimento do direito constitucional a partir de fatos históricos e da separação de poderes e, em seguida, o desenvolvimento da função judiciária como efetivação de direitos fundame...

  2. Teoría microsocial de los símbolos literarios: el análisis del cambio sociocultural como desafío del siglo XXI

    OpenAIRE

    Garcia-Peña, Lilia

    2015-01-01

    Nuestro mundo en el siglo XXI cambia velozmente, la literatura es especialmente sensible a las dinámicas sociales y las expresa, estéticamente, con profundidad y claridad. En este trabajo propongo un enfoque microsocial del análisis de los símbolos literarios para la interpretación de las representaciones del cambio sociocultural en las obras y para la reafirmación de la literatura como expresión y agente de la dinámica sociocultural, me apoyo para ello básicamente en la microsociología de Er...

  3. Level II Ergonomic Analyses, Dover AFB, DE

    Science.gov (United States)

    1999-02-01

    IERA-RS-BR-TR-1999-0002 UNITED STATES AIR FORCE IERA Level II Ergonomie Analyses, Dover AFB, DE Andrew Marcotte Marilyn Joyce The Joyce...Project (070401881, Washington, DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 4. TITLE AND SUBTITLE Level II Ergonomie Analyses, Dover...1.0 INTRODUCTION 1-1 1.1 Purpose Of The Level II Ergonomie Analyses : 1-1 1.2 Approach 1-1 1.2.1 Initial Shop Selection and Administration of the

  4. [Evaluation of the quality of care of transient tachypnea in newborns affiliated with the Medical Insurance Siglo XXI program].

    Science.gov (United States)

    Pérez-Cuevas, Ricardo; Jasso Gutiérrez, Luis; Doubova, Svetlana; Flores Hernández, Sergio; Mantilla Trollé, Clara; González Guerra, Eduardo; Muñoz Hernández, Onofre

    Evaluation of the quality of care of the newborn with complications is an indispensable element for the improvement of strategies directed to reduce newborn mortality rates. The aim of this work was to evaluate the quality of technical and interpersonal care in the management of transient tachypnea of the newborn (TTN) of patients affiliated with the program "Medical Insurance Siglo XXI". A cross-sectional study was conducted in 61 hospitals affiliated with the Health Ministry with at least two cases of TTN during the first semester of 2011. Variables such as mother's health, pregnancy, birth and birth complication characteristics were analyzed. Also, newborn interventions and health conditions upon discharge were included. To measure the quality of care according to prevention, diagnosis and treatment, quality indicators were defined and validated. We analyzed 256 case files with a diagnosis of TTN; 8.9% of the mothers presented risk factors (asthma, diabetes) and 53.5% had complications during pregnancy. There were 60% of cases with TTN born by cesarean delivery; one third of these children had low birth weight and 14% were transferred to another hospital. As for the quality indicators in the area of prevention, more than 90% of risk factors (smoking, asthma, cesarean delivery) were identified. Diagnostic indicators showed that 86-98% of respiratory distress symptoms were sought. Indicators of treatment achieved satisfactory figures for monitoring and support measures. Prevention, diagnosis and treatment indicators made it possible to consider that most TTN cases received appropriate treatment. It is advisable to develop effective strategies to prevent TTN, such as increasing efforts to reduce the increasing rates of cesarean deliveries. Copyright © 2014 Hospital Infantil de México Federico Gómez. Publicado por Masson Doyma México S.A. All rights reserved.

  5. Ethos, pathos y logos en Facebook. El usuario de redes: nuevo «rétor» del siglo XXI

    Directory of Open Access Journals (Sweden)

    Juan Salvador Victoria Mas

    2013-08-01

    Full Text Available Uno de los «agujeros negros» de la investigación en comunicación tiene que ver con una carencia de profundización en los orígenes clásicos de nuestros estudios, de sus objetos y de los acercamientos a estos. En este sentido, cobraría especial relevancia el estudio de los procesos comunicativos en Internet (en concreto a través de las redes sociales bajo el prisma de la Retórica clásica. Especialmente, nos referimos al uso de las estrategias de persuasión (ethos, pathos, logos así como al abundante uso de figuras retóricas. Tales parámetros unidos a los recursos que ofertan las tecnologías emergentes otorgan una enorme creatividad y aportan aspectos humanistas a la comunicación en red, claves de la fuerza persuasiva que caracteriza a estas plataformas online. De esta forma podemos hablar del usuario de redes como el nuevo «rétor» del siglo XXI. Nuestra investigación sobre Facebook aborda la presencia de la ciencia retórica en la comunicación generada en las redes sociales online: el usuario de estas plataformas utiliza las estrategias comunicativas descritas por la disciplina retórica desde sus comienzos en la antigüedad grecolatina. La metodología empleada (el estudio de tres casos tipificados y el análisis de contenidos de las conversaciones generadas en los muros de Facebook nos permite entrelazar la Retórica y nuestro presente comunicativo mediado por la emergencia de las redes. Proponemos así recuperar unos parámetros que devuelvan el pensamiento profundo y crítico en favor de una comunicación más humana.

  6. Paradoxos da Comunicação e do Consumo no Brasil do séc. XXI

    Directory of Open Access Journals (Sweden)

    Gisela B. Taschner

    2011-11-01

    Full Text Available As novas tecnologias e a globalização vêm trazendo a possibilidade de estruturas mais democráticas de comunicação, produção e consumo, assim como de novos padrões de sociabilidade e de novas formas de atuação política. Na área da  mídia, a internet tende a minar o poder da indústria cultural, bem como seus efeitos  alienantes. Essa parece ser a tendência no Ocidente, no século XXI. No Brasil, no  entanto, o tipo de oligopolização do setor de comunicações existente tem mantido  um predomínio da mídia televisiva tradicional (aberta e paga não encontradiço  em países avançados. Não se trata de mera sobrevida de um padrão antigo em um  mundo em transição. Há uma articulação perversa dessa mídia com as exigências  do capitalismo pós-industrial, que se expressa sobremaneira nos momentos do lazer  e do consumo dos jovens e das crianças. Ocorre, pois, um paradoxo, talvez típico da  pós-modernidade brasileira, que, em um extremo, abriga um consumidor – cidadão  muito crítico, e no outro, técnicas de indução ao  consumismo, especialmente o infantil; ele é o tema de nossa reflexão.

  7. A Crise de paradigmas e a ressignificação do conhecimento para o século XXI

    Directory of Open Access Journals (Sweden)

    Ana Maria Dalla Zen

    2010-12-01

    Full Text Available O artigo discute a produção do conhecimento no século XXI, a partir da crise entre o paradigma clássico e o emergente. Destaca a incompetência da ciência para a solução dos principais problemas decorrentes do avanço científico, em especial o fenômeno da exclusão social. Analisa o princípio da complexidade e a sua relação com a construção de uma nova ética para o futuro. Mostra a incapacidade da disciplinaridade para dar conta dos problemas decorrentes do avanço científico deste século. Enfatiza a interdisciplinaridade para um primeiro passo na solução dos mesmos e, como transposição paradigmática, valoriza o princípio da transdisciplinaridade. Propõe os conceitos de permacultura, desenvolvimento sustentável, biologia do conhecimento e ecologia social como ferramentas para concretizar a interdisciplinaridade na produção do conhecimento. Conclui que a expansão de formas de democracia participativa é uma alternativa de gestão pública útil para equacionar o problema da exclusão social. E que se trata de um mecanismo de participação popular que permite às comunidades atuarem no controle público do Estado e do governo, e podem criar novas perspectivas de vida pública.

  8. DINÂMICA ECONÔMICA E REDE URBANA CEARENSE NO INÍCIO DO SÉCULO XXI

    Directory of Open Access Journals (Sweden)

    Fernando Cezar de Macedo

    2012-03-01

    Full Text Available Este artigo discute a dinâmica econômica e a evolução da rede urbana do Ceará nesta primeira década do século XXI. Além das heranças seculares, toma como elemento decisivo na estruturação do espaço cearense as diversas políticas implementadas pelos governos estaduais que articularam a economia cearense aos movimentos das economias brasileira e internacional, influenciando sua organização espacial. Mostra que foi no período colonial que a capital cearense tornou-se principal centro urbano do estado graças à centralização dos excedentes das atividades sertanejas sustentadas no binômio pecuária-algodão. Posteriormente, apresenta as transformações verificadas na fase de integração do mercado nacional, quando se concentraram os principais investimentos na cidade de Fortaleza. Dada essa grande concentração, observam-se esforços de descentralização da atividade produtiva, a partir de uma ação deliberada do governo do estado, através dos instrumentos da guerra fiscal que atraíram para o interior importantes investimentos, sem, contudo, reduzir as disparidades intraestaduais ainda fortemente marcadas pelo predomínio metropolitano. Não obstante, surgem focos dinâmicos na economia cearense, contribuindo para uma maior diferenciação do interior do estado.

  9. 12th Air Force > Home

    Science.gov (United States)

    Force AOR Travel Info News prevnext Slide show 76,410 pounds of food delivered to Haiti 12th Air Force the French Air Force, Colombian Air Force, Pakistan Air Force, Belgian Air Force, Brazilian Air Force

  10. Anna Łebkowska, Empatia. O literackich narracjach przełomu XX i XXI wieku

    Directory of Open Access Journals (Sweden)

    Marta Suchańska

    2009-10-01

    Full Text Available Empathie. À propos des narrations littéraires au tournant des XXe et XXIe siècles est le premier essai polonais qui analyse la prose à travers le prisme de l’empathie. Les travaux antérieurs consacrés à cette thématique (à l’instar de ceux de Michał Głowiński ou de Jarosław Płuciennik ne s’intéressent pas à l’empathie comme catégorie littéraire indépendante. Ils ne montrent pas les contextes possibles de sa compréhension ni les mécanismes empathiques sur fond de prose contemporaine. Le livre...

  11. O Direito internacional no alvorecer do século XXI

    Directory of Open Access Journals (Sweden)

    Manfred Lachs

    1994-08-01

    Full Text Available Ao longo do século XX, o número de Estados aumentou, assim como evoluíram a ciência e a tecnologia. Numerosos campos do Direito Internacional foram enriquecidos como mostra a intensa atividade das organizações internacionais. As imensas mudanças deste século que termina explicam o sucesso da codificação, assim como provocam uma modificação do conceito de soberania. O futuro, que pode ser concebido a partir do exemplo da guerra do Golfo e do papel desempenhado pela ONU, pode levar a uma força permanente da ONU e a um controle sobre as armas nucleares, mas também a um encaminhamento em direção à eqüidade e à promoção da justiça internacional.During the 20th. century, the number of States has considerably increased and science as well as technology have been in constant evalution. The scope of international law was dramatically enlarged, as shown by the developping activity of international organisations. These stricking transformations, (which are actually reading an end with the collaps of an international society dominated until a recent past by the rivality between two superpowers does explain the successes which have been known by the codification of international law. In the future, which can be forseen through the role played by the United Nations during the Gulf War, one could expect the outcome of a permanent force under the control of the United Nations, the limitation of nuclear weapons and the entrancement of international justice and equity.

  12. Skills in the XXI Century Guidance: An Approach to the Costa Rican Reality

    Directory of Open Access Journals (Sweden)

    Alejandra Gamboa-Jiménez

    2010-12-01

    Full Text Available During a long time, the term competence has been used in different fields. Among those fields, and one of the most important, we can mention the educational system, from preschool to university levels. The term has to be understood as one person integral behavior, making him/her able to enter the labor force in the most competitive way. Within the university realm, experts have tried to include the model of competences as a transversal axle into the teaching-learning process. In European universities, such model has been implemented in most of them. In Latin America universities, on the other hand, it has been used in a good number of countries. The importance of early detection of competences among target populations in education has been widely discussed. However, it has been highlighted the necessity of considering romantic or subjective competences, which seem to lack of value in this complex and competitive actual world. The term competence has been classified as genetic competence, or common and specific competence. The latter is related to the knowledge scope. Within the counseling field, specifically, the general and specific competences are deemed highly appropriate for good a work performance. This article focuses on the main antecedents of competences and analyzes this approach from counseling field perspective. In regards to this specific aspect, a survey with professionals in counseling was carried out. Such a survey ends up dealing with some of the competences considered unavoidable for an accurate performance of professionals in counseling. It is important to mention that the competences of the survey mainly point out to genetic competences rather than to specific competences.

  13. Sample preparation method for scanning force microscopy

    CERN Document Server

    Jankov, I R; Szente, R N; Carreno, M N P; Swart, J W; Landers, R

    2001-01-01

    We present a method of sample preparation for studies of ion implantation on metal surfaces. The method, employing a mechanical mask, is specially adapted for samples analysed by Scanning Force Microscopy. It was successfully tested on polycrystalline copper substrates implanted with phosphorus ions at an acceleration voltage of 39 keV. The changes of the electrical properties of the surface were measured by Kelvin Probe Force Microscopy and the surface composition was analysed by Auger Electron Spectroscopy.

  14. Trends in the Production of Castings in the World and in Poland in the XXI Century

    Directory of Open Access Journals (Sweden)

    Soiński M.S.

    2016-06-01

    Full Text Available The paper presents data concerning the total production of castings over the 2000-2014 period, both on a global scale, and in Poland. The basic types of casting alloys were taken into account. Changes in the production volume and structure over the period of the analysed 15 years were pointed out with respect to countries leading in foundry production. The topmost position in the world foundry industry is held by China for several years (with almost 45% share in the foundry market, the second place is taken by India (with almost 9% share. A distinct reduction in the shares of the once significant producers of castings, such as USA, Japan, Germany, Russia, Italy, or France, was observed over the 2000-2014 period. Poland had a share of 1.16% in 2000, and of 1.02% in 2014. Comparing the detailed data concerning the years 2000 and 2014, one can see that the fractions of castings made of ductile iron, cast steel, aluminium alloys, or magnesium alloys increase on a global scale, while such alloys as grey cast iron or malleable are in decline.

  15. About role of 'Nuclear sciences' and other trends of scientific and technological works in innovation development of phenomena and globalization processes in XX and XXI centuries

    International Nuclear Information System (INIS)

    Arifov, P.V.; Azimova, D.S.; Trostyanskij, D.V.; Umarov, A.G.

    2005-01-01

    It is concluded, that just successful development of scientific and technological works in the field 'Nuclear Sciences' results economy advantages for USA and some West countries compared with USSR and the rest countries of East Europe. In the following decades this advantage allows to a leader-countries develop with success principally new trends of scientific, technological workings in the a wide-scale sphere of natural, technical, biomedical, and other related sciences. Here soon the USA gap from other world countries was achieved. In the field of fundamental sciences there are such fields: Computer Sciences (1940 and then), Space Sciences (1950 and then), Life Sciences (1960 and then), Computer tomography Sciences (1970 and then). Material Researches Sciences (1980 and then), Internet Sciences (1994 and then), Nanosciences and Nanotechnologies (1999 and then). In the end of XX century these advantages allow to USA to realize two known global innovation initiatives having National character: Ballistic Missile Defense - from 1983, Internet - from 1994, and to declare the third one - targeting to the XXI century - Nanosciences and Nanotechnologies - from 1999. It is noted, that due to unexampled high temps of development of phenomena and globalization in the XXI century the specialists and professionals of Uzbekistan in the shortest time have to learn the newest world experience in order to ensure worthy status for the young independent state in the world developed countries commonwealth in new age

  16. Tendencias de la multialfabetización en los albores del siglo XXI: alfabetización mediática e informacional (AMI como propuesta integradora

    Directory of Open Access Journals (Sweden)

    Maylin Frías-Guzmán

    Full Text Available La evolución de alfabetismos se produjo como resultado de la transición de una cultura oral a una cultura letrada. El presente estudio examina las principales tendencias de la multialfabetización a principios del siglo XXI. Se combina el método de análisis documental y el método bibliométrico en el análisis de la evolución de los alfabetismos, a través de documentos que establecen pautas en su fundamentación y el comportamiento de la producción científica por año en la primera década del siglo XXI. Se revela el lugar destacado que ocupan la Alfabetización Mediática y la Alfabetización Informacional con respecto al resto de las expresiones que surgen. La Alfabetización Multimedia es un alfabetismo poco abordado en la literatura como proceso de formación de competencias vinculadas a la recepción y producción de mensajes a partir de la convergencia de lenguajes y medios. La noción de Alfabetización Mediática e Informacional (AMI constituye la principal tendencia que integra los diversos alfabetismos que promueven la participación activa en la construcción y transformación del individuo y la sociedad.

  17. Theorising and Analysing Academic Labour

    Directory of Open Access Journals (Sweden)

    Thomas Allmer

    2018-01-01

    Full Text Available The aim of this article is to contextualise universities historically within capitalism and to analyse academic labour and the deployment of digital media theoretically and critically. It argues that the post-war expansion of the university can be considered as medium and outcome of informational capitalism and as a dialectical development of social achievement and advanced commodification. The article strives to identify the class position of academic workers, introduces the distinction between academic work and labour, discusses the connection between academic, information and cultural work, and suggests a broad definition of university labour. It presents a theoretical model of working conditions that helps to systematically analyse the academic labour process and to provide an overview of working conditions at universities. The paper furthermore argues for the need to consider the development of education technologies as a dialectics of continuity and discontinuity, discusses the changing nature of the forces and relations of production, and the impact on the working conditions of academics in the digital university. Based on Erik Olin Wright’s inclusive approach of social transformation, the article concludes with the need to bring together anarchist, social democratic and revolutionary strategies for establishing a socialist university in a commons-based information society.

  18. Estratificação educacional no Brasil do século XXI

    Directory of Open Access Journals (Sweden)

    Arnaldo Mont'Alvão

    2011-01-01

    Full Text Available Dans cet article, on examine le processus de stratification dans l'éducation brésilienne pendant la première décennie de notre siècle. On y étudie les principales approches et les modèles empiriques qui sont consacrés à ce sujet non seulement dans le pays mais aussi dans le monde. En prenant comme référence principale l'hypothèsedel 'inégalité effectivement conservée, onatesté des hypothèses sur le cas brésilien à travers des modèles de régression logistique multinomiale qui analysent les chances d'achever l'enseignement secondaire et d'entrer à l'université, dans les services de scolarité publique et privée, à partir des données des PNAD (Sondage National par Echantillonnage à Domicile concernant les années 2001, 2004 et 2007. Les principaux résultats montrent le maintien ou même l'augmentation de l'influence de l'origine sociale dans l'accès à l'éducation supérieure par rapport à l'enseignement secondaire, ainsi que l'accentuation des inégalités tout au long de cette décennie. Bien que l'école privée soit plus inégale que l'école publique, celleci présente un accroissement considérable de la stratification dans l'éducation. On remarque aussi des inégalités de régions, races, genre et capital social.

  19. Handbook of force transducers

    CERN Document Server

    Stefanescu, Dan Mihai

    2011-01-01

    Part I introduces the basic ""Principles and Methods of Force Measurement"" acording to a classification into a dozen of force transducers types: resistive, inductive, capacitive, piezoelectric, electromagnetic, electrodynamic, magnetoelastic, galvanomagnetic (Hall-effect), vibrating wires, (micro)resonators, acoustic and gyroscopic. Two special chapters refer to force balance techniques and to combined methods in force measurement. Part II discusses the ""(Strain Gauge) Force Transducers Components"", evolving from the classical force transducer to the digital / intelligent one, with the inco

  20. K biblickým citacím v Historii o umučení a Kázání XXI Jana Amose Komenského

    Czech Academy of Sciences Publication Activity Database

    Havelka, Tomáš

    2017-01-01

    Roč. 65, č. 4 (2017), s. 507-539 ISSN 0009-0468 R&D Projects: GA ČR GB14-37038G Institutional support: RVO:67985955 Keywords : Jan Amos Komenský * Sermon XXI * History of the Sufferings * Gospel harmony * homiletics * biblical quotations * frequency analysis Subject RIV: AJ - Letters, Mass-media, Audiovision OBOR OECD: Religious studies

  1. The XXI century college students in Mexico: from passivity to autonomy and critical thinking Los estudiantes universitarios del siglo XXI en México: de la pasividad a la autonomía y al pensamiento crítico

    Directory of Open Access Journals (Sweden)

    María Zúñiga Sánchez

    2012-07-01

    Full Text Available Normal.dotm 0 0 1 152 870 Universidad de Salamanca 7 1 1068 12.0 0 false 18 pt 18 pt 0 0 false false false /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} XXI century has brought an enormous amount of transformations in many spheres of social, educative, technological, scientific and familiar life. These transformations have touched on a particular way the educative ambit, with reforms in their educational models and thus college students make a break with positivist paradigms in which student was seen as a restricted supply by the professor programmer contingencial arrangements, which are set even before the instructional situation (Hernández Rojas, 1998. That subject, whose school performance and learning could be fixed from the outside, is in a process of emancipation and awareness now actively involved in its own learning. Many universities in Mexico are working to give a decisive turn providing autonomy in their students, by models such as constructivism, at the same time they required critical thinking, but this autonomy is not authentic, students are subsumed into their institution curriculum and they generate learning that is limited to what will be assess, yet student is reified. Normal.dotm 0 0 1 173 987 Universidad de Salamanca 8 1 1212 12.0 0 false 18 pt 18 pt 0 0 false false false /* Style Definitions */ table.MsoNormalTable {mso

  2. Sociological portrait of infanticide in the United states, end XX - beginning of XXI century: victims and perpetrators

    Directory of Open Access Journals (Sweden)

    S. V. Bogdanov

    2016-01-01

    Full Text Available This article focuses on mortality in children under 5 years in the United States of homicides. Infanticide has become one of the most common crimes against the person in the United States during the second half of XX - beginning of XXI centuries. This fact contributed to the problem of violent crime against children has been actively developed in American criminology. The following article is devoted to mortality from homicides among children under the age of 5 years old in the United States of America. Statistical reports of the Federal Bureau of Investigation during the period of 1980-2013 have been used as an empirical base for research. Carried out a critical analysis of a wide range of research of American specialists in various branches of science (criminologists, sociologists, psychiatrists, physicians, devoted to the problems of infanticide in the United States. The basic parameters of infanticide, the dynamics and characteristics of this type of crime. Revealed a rather complicated dynamics of infanticide in the United States for a designated length of chronological period’s ups and downs in the development of this type of crime. Victimization characteristics of children died of homicides as per sex, age and race have been presented. It is found that among American children under the age of 5 years, the greatest risk of becoming a victim of premeditated murder was in children under the age of 1 year. Generalized characteristics of criminals having committed infanticide during this period of time as per sex, kinship of the victim, means used to murder have been revealed. This study found that during the period under review the chronological development of the United States of persons detained by the police for the murder of a child under the age of 5 years, which is numerically dominated by men. These statistics can be traced in all age groups of persons who have committed infanticide in the United States in the 1980-2013 periods

  3. Associations of anthropometry since birth with sagittal posture at age 7 in a prospective birth cohort: the Generation XXI Study.

    Science.gov (United States)

    Araújo, Fábio A; Lucas, Raquel; Simpkin, Andrew J; Heron, Jon; Alegrete, Nuno; Tilling, Kate; Howe, Laura D; Barros, Henrique

    2017-07-26

    Adult sagittal posture is established during childhood and adolescence. A flattened or hypercurved spine is associated with poorer musculoskeletal health in adulthood. Although anthropometry from birth onwards is expected to be a key influence on sagittal posture design, this has never been assessed during childhood. Our aim was to estimate the association between body size throughout childhood with sagittal postural patterns at age 7. Prospective cohort study. A subsample of 1029 girls and 1101 boys taking part in the 7-year-old follow-up of the birth cohort Generation XXI (Porto, Portugal) was included. We assessed the associations between anthropometric measurements (weight, height and body mass index) at birth, 4 and 7 years of age and postural patterns at age 7. Postural patterns were defined using latent profile analysis, a probabilistic model-based technique which allows for simultaneously including anthropometrics as predictors of latent profiles by means of logistic regression. Postural patterns identified were sway, flat and "neutral to hyperlordotic"in girls, and "sway to neutral", flat and hyperlordotic in boys; with flat and hyperlordotic postures representing a straightened and a rounded spine, respectively. In both girls and boys, higher weight was associated with lower odds of a flat pattern compared with a sway/"sway to neutral"pattern, with stronger associations at older ages: for example, ORs were 0.68 (95% CI 0.53 to 0.88) per SD increase in birth weight and 0.36 (95% CI 0.19 to 0.68) per SD increase in weight at age 7 in girls, with similar findings in boys. Boys with higher ponderal index at birth were more frequently assigned to the hyperlordotic pattern (OR=1.44 per SD; p=0.043). Our findings support a prospective sculpting role of body size and therefore of load on musculoskeletal spinopelvic structures, with stronger associations as children get older. © Article author(s) (or their employer(s) unless otherwise stated in the text of the

  4. The study of the hydrological regime extreme effects of the Caspian Sea during the XX-XXI centuries

    Science.gov (United States)

    Yaitskaya, Natalia

    2016-04-01

    The Caspian Sea - the unique largest enclosed inland body of water on Earth. Significant periodic sea level fluctuations are a typical feature of the sea. In the XIX-XX centuries a number of comprehensive studies of the Caspian Sea was carried out. The results are published in the papers, monographs and climatic atlases. But a number of fundamental questions about the features of the hydrological regime of the Caspian Sea is still open: 1. How does the water circulation change during the level variations? 2. What is the effect of heterogeneity of evaporation from the water surface on the formation of the flow field in the conditions of long-term level changes? 3. How does the water salinity regime change depending on the sea level position, water circulation, river flow and different climatic influences? 4. What is the effect of extreme events (multi-hazards) (ice, storms, destruction of the coasts) on coastal infrastructure? In 2016, the project aims to study hydrological regime extreme effects of the Caspian Sea was supported by the Russian Foundation for Basic Research. Within this project all of the above problems will be solved. Geographic information system "Caspian Sea" for the storage and data processing, including a database of primary oceanographic information for the period of instrumental observations (1897-2013), cartographic database (1921-2011) and tools for multidimensional analysis of spatio-temporal information is the basis of the study. The scheme of interconnected hydrodynamic models (Caspian Sea MODel - Ocean Model - Wind wave model) was developed. The important factors are taken into account in the structure of the models: long-term and seasonal dynamics of the sea waves parameters, new long-term values of evaporation from the shallow waters areas of the Caspian Sea, water circulation. Schemes of general seasonal circulation of the Caspian Sea and the Northern Caspian at different positions of the sea level in XX-XXI centuries using

  5. UN MODELO DE EDUCACIÓN UNIVERSITARIA PARA VENEZUELA EN EL MARCO DEL SOCIALISMO DEL SIGLO XXI

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Pineda

    2011-01-01

    Full Text Available El presente ensayo se basa en un análisis de la educación universitaria en el contexto socio-político de la realidad venezolana, en el período referencial es 2007-2013, centrado a partir de la promulgación de la Ley Orgánica de Educación (2009. Este estudio se desarrolló en la Unidad de Investigación de Análisis de Políticas Públicas y Desarrollo Socio-educativo de la Universidad de Carabobo. Tomando como referencias teóricas a E. Morin y J. Habermas, se desarrollan tres categorías presentes en la realidad de Venezuela: el Socialismo del Siglo XXI, el Estado Docente y la Autonomía Universitaria. El tratamiento metodológico parte del planteamiento de la premisa: el Nuevo Modelo de Educación Universitaria que está por construirse, se debe a la crisis del modelo cognitivo instrumental instituido en la Constitución de la República de Venezuela (1961, sus Leyes y Reglamentos. Al triangular las tres categorías se plantea, como valor agregado, concebir la educación a través de un proceso transdisciplinario, sustentado en una primera instancia por el ordenamiento jurídico que le dé concreción y sincronización en el tiempo y el movimiento. En el caso de la educación venezolana, se concluye que no se han producidos cambios significativos que nos indiquen que estamos en presencia de un nuevo modelo de educación. La educación universitaria sigue atada al modelo cognitivo instrumental, impidiendo cualquier cambio que desde su seno se pretenda impulsar, de manera que la nueva Ley de Educación Universitaria y el nuevo modelo de educación siguen diferido.

  6. Laser Beam Focus Analyser

    DEFF Research Database (Denmark)

    Nielsen, Peter Carøe; Hansen, Hans Nørgaard; Olsen, Flemming Ove

    2007-01-01

    the obtainable features in direct laser machining as well as heat affected zones in welding processes. This paper describes the development of a measuring unit capable of analysing beam shape and diameter of lasers to be used in manufacturing processes. The analyser is based on the principle of a rotating......The quantitative and qualitative description of laser beam characteristics is important for process implementation and optimisation. In particular, a need for quantitative characterisation of beam diameter was identified when using fibre lasers for micro manufacturing. Here the beam diameter limits...... mechanical wire being swept through the laser beam at varying Z-heights. The reflected signal is analysed and the resulting beam profile determined. The development comprised the design of a flexible fixture capable of providing both rotation and Z-axis movement, control software including data capture...

  7. Contesting Citizenship: Comparative Analyses

    DEFF Research Database (Denmark)

    Siim, Birte; Squires, Judith

    2007-01-01

    importance of particularized experiences and multiple ineequality agendas). These developments shape the way citizenship is both practiced and analysed. Mapping neat citizenship modles onto distinct nation-states and evaluating these in relation to formal equality is no longer an adequate approach....... Comparative citizenship analyses need to be considered in relation to multipleinequalities and their intersections and to multiple governance and trans-national organisinf. This, in turn, suggests that comparative citizenship analysis needs to consider new spaces in which struggles for equal citizenship occur...

  8. Risico-analyse brandstofpontons

    NARCIS (Netherlands)

    Uijt de Haag P; Post J; LSO

    2001-01-01

    Voor het bepalen van de risico's van brandstofpontons in een jachthaven is een generieke risico-analyse uitgevoerd. Er is een referentiesysteem gedefinieerd, bestaande uit een betonnen brandstofponton met een relatief grote inhoud en doorzet. Aangenomen is dat de ponton gelegen is in een

  9. Fast multichannel analyser

    Energy Technology Data Exchange (ETDEWEB)

    Berry, A; Przybylski, M M; Sumner, I [Science Research Council, Daresbury (UK). Daresbury Lab.

    1982-10-01

    A fast multichannel analyser (MCA) capable of sampling at a rate of 10/sup 7/ s/sup -1/ has been developed. The instrument is based on an 8 bit parallel encoding analogue to digital converter (ADC) reading into a fast histogramming random access memory (RAM) system, giving 256 channels of 64 k count capacity. The prototype unit is in CAMAC format.

  10. A fast multichannel analyser

    International Nuclear Information System (INIS)

    Berry, A.; Przybylski, M.M.; Sumner, I.

    1982-01-01

    A fast multichannel analyser (MCA) capable of sampling at a rate of 10 7 s -1 has been developed. The instrument is based on an 8 bit parallel encoding analogue to digital converter (ADC) reading into a fast histogramming random access memory (RAM) system, giving 256 channels of 64 k count capacity. The prototype unit is in CAMAC format. (orig.)

  11. Power System Oscillatory Behaviors: Sources, Characteristics, & Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Follum, James D. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Tuffner, Francis K. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Dosiek, Luke A. [Union College, Schenectady, NY (United States); Pierre, John W. [Univ. of Wyoming, Laramie, WY (United States)

    2017-05-17

    This document is intended to provide a broad overview of the sources, characteristics, and analyses of natural and forced oscillatory behaviors in power systems. These aspects are necessarily linked. Oscillations appear in measurements with distinguishing characteristics derived from the oscillation’s source. These characteristics determine which analysis methods can be appropriately applied, and the results from these analyses can only be interpreted correctly with an understanding of the oscillation’s origin. To describe oscillations both at their source within a physical power system and within measurements, a perspective from the boundary between power system and signal processing theory has been adopted.

  12. Applications of Historical Analyses in Combat Modelling

    Science.gov (United States)

    2011-12-01

    causes of those results [2]. Models can be classified into three descriptive types [8], according to the degree of abstraction required:  iconic ...22 ( A5 ) Hence the first bracket of Equation A3 is zero. Therefore:         022 22 22 122 22 22 2      o o o o xx xxy yy yyx...A6) Equation A5 can also be used to replace the term in Equation A6, leaving: 22 oxx     222 2 22 1 2222 2 oo xxa byyyx

  13. Stability of alert survivable forces during reductions

    Energy Technology Data Exchange (ETDEWEB)

    Canavan, G.H.

    1998-01-01

    The stability of current and projected strategic forces are discussed within a framework that contains elements of current US and Russian analyses. For current force levels and high alert, stability levels are high, as are the levels of potential strikes, due to the large forces deployed. As force levels drop towards those of current value target sets, the analysis becomes linear, concern shifts from stability to reconstitution, and survivable forces drop out. Adverse marginal costs generally provide disincentives for the reduction of vulnerable weapons, but the exchange of vulnerable for survivable weapons could reduce cost while increasing stability even for aggressive participants. Exchanges between effective vulnerable and survivable missile forces are studied with an aggregated, probabilistic model, which optimizes each sides` first and determines each sides` second strikes and costs by minimizing first strike costs.

  14. A UNIVERSIDADE DO SÉCULO XXI RUMO AO DESENVOLVIMENTO SUSTENTÁVEL

    Directory of Open Access Journals (Sweden)

    Maria Elisabeth Pereira Kraemer

    2004-11-01

    Full Text Available

  1. Perú: Políticas de comunicación en la primera década del siglo XXI

    Directory of Open Access Journals (Sweden)

    Max Tello

    2009-03-01

    Full Text Available Trata la situación de la comunicación en el Perú, y señala que en el siglo XXI el Perú se levantó de tres serias dolencias: crisis política, económica y de gobernabilidad hoy se ve una sociedad en rápido desarrollo pujante y optimista, entregada a la comunicación global y decidida a mirar al futuro. Las políticas de comunicación no son solo leyes y normas que en un país regulan los procesos de comunicación, sino los principios que marcan la relación entre Estado, medios de comunicación y ciudadanos.

  2. The Activities of UN Specialized Agencies in the Area of Disaster Relief of Population and Territories against Disasters in the beginning of the XXI century

    Directory of Open Access Journals (Sweden)

    Aleksey Vladimirovich Kuvshinov

    2016-12-01

    Full Text Available The article deals with the analysis of the structure and main directions of the activities of UN specialized agencies as well as other international organizations and entities such as ICDO aimed at the organization of the measures for disaster relief and civil defence. The urgency of the article is in the fact that it is for the first time in Russian academic literature devoted to this topic with the specific examples of conducting of such measures. The main conclusions of the article stresses that the specialized U.N. agencies and other international and national entities have already demonstrated the urgent nature and efficiency of providing disaster relief to affected countries and population in the beginning of the XXI century but they should upgrade their potential in that regard in the coming years.

  3. Estructura productiva, pobreza y problemas de empleo en las provincias pampeanas y norteñas de Argentina en los primeros años del siglo XXI

    Directory of Open Access Journals (Sweden)

    Fernando Longhi

    2017-01-01

    Full Text Available Argentina, históricamente, ha presentado profundas desigualdades socioeconómicas regionales. Las provincias del Noroeste mostraron notorias diferencias respecto a las pampeanas en la producción de riqueza. Así, a fines del siglo xx, mientras en las provincias pampeanas la pobreza alcanzaba al 32,9% de su población, en el norte estas privaciones se duplicaban. Este artículo tiene por objeto analizar comparativamente las características de estas privaciones —considerando escalas provinciales y departamentales—, vinculándolas a su vez con las transformaciones económicas y productivas y con los problemas de empleo a lo largo del siglo xx e inicios del xxi. Los resultados advierten un notorio proceso de fragmentación socioterritorial como corolario de la persistencia de la desigualdad. Se destaca el recrudecimiento de dicha fragmentación en determinadas provincias y departamentos argentinos.

  4. Vulnerabilidade social: transformaÃÃes no espaÃo urbano de Fortaleza no inÃcio do sÃculo XXI

    OpenAIRE

    Rachel Vieira de Araujo

    2015-01-01

    Estudos sobre vulnerabilidade social estÃo presentes em vÃrias metrÃpoles da AmÃrica Latina. Tais espaÃos sÃo permeados por desigualdades onde diferentes grupos sociais vivem em condiÃÃes precÃrias com dÃficit de infraestrutura e serviÃos e outros vivem em Ãtimas condiÃÃes, com elevados Ãndices educacionais, renda, infraestrutura e uma gama de serviÃos. O trabalho traz a discussÃo da vulnerabilidade social em Fortaleza no inÃcio do sÃculo XXI. Para isso à necessÃrio compreender como a expa...

  5. O desafio do desenvolvimento frente aos marcos ecológico e de mercado em direção à sustentabilidade no século XXI

    Directory of Open Access Journals (Sweden)

    Gustavo Madeira da Silveira

    2010-12-01

    Full Text Available Neste trabalho demonstrar-se-á o desafio do modelo desenvolvimentista atual em direção à preconizada e colimada sustentabilidade. A primeira década deste século XXI foi marcada por dois marcos, um ambiental (as mudanças climáticas e outro de mercado (a crise econômica mundial, que colocaram em cheque o sistema capitalista, tendo em vista as soluções insustentáveis que foram tomadas para enfrentar estes marcos. Foram objeto de análise da pesquisa, a não adesão dos EUA ao Protocolo de Quioto; o contraponto dos países “em desenvolvimento” entre desenvolver-se ora sustentavelmente, ora insustentavelmente; e o fomento do consumo como única alternativa encontrada pelo países para a saída da crise econômica mundial.

  6. Geomorfologia Brasileira: Panorama Geral da Produção Nacional no Início do Século XXI (2001-2005 NOTA TÉCNICA

    Directory of Open Access Journals (Sweden)

    André Augusto Rodrigues Salgado

    2008-10-01

    Full Text Available O presente trabalho, através da análise dos artigos publicados em periódicos nacionais e internacionais, traça um panorama da geomorfologia brasileira nos cinco primeiros anos do século XXI. Os resultados obtidos indicam a existência de centros de excelência nacional em algumas das especialidades da geomorfologia. Indicam ainda que a produção brasileira concentra-se no centro-sul do país e que o ramo mais desenvolvido é o da geomorfologia fluvial. Por fim, apontam para o fato de que o amadurecimento do trabalho dos centros nacionais de excelência nos diversos ramos da geomorfologia pode fazer com que a produção geomorfológica brasileira aumente de importância no cenário internacional.

  7. “Nadie escuchó los llantos”. Fútbol, crónica y represión en la novela negra hispánica del XXI

    OpenAIRE

    García Cames, David

    2016-01-01

    El fútbol está hecho de héroes pero también de mafias, apuestas, corrupción y violencia. El género negro se ha acercado de forma reiterada a todo aquello que rodea al fútbol como tema y fuente de inspiración. Tras situar algunos de los principales antecedentes, este artículo traza en primer término una panorámica sobre fútbol y novela negra en la literatura hispánica del siglo XXI. Más adelante, se analiza el papel que desempeña el fútbol como motivo desde el que abordar los mecanismos de fun...

  8. PODER JUDICIÁRIO E DIREITOS FUNDAMENTAIS NO SÉCULO XXI: UMA APROXIMAÇÃO ENTRE NORMATIVISMO E MATERIALISMO HISTÓRICO

    Directory of Open Access Journals (Sweden)

    Monique Lima Falcão

    2015-07-01

    Full Text Available Este trabalho se apresenta como um ensaio acadêmico e tem como objetivo apresentar o contexto histórico-social que deu origem a um direito constitucional no séc. XXI que tem uma característica específica: integrar materialismo histórico e normatividade. Para tanto, apresentamos a contextualização histórica do desenvolvimento do direito constitucional a partir de fatos históricos e da separação de poderes e, em seguida, o desenvolvimento da função judiciária como efetivação de direitos fundamentais e ponte entre as duas vertentes teórico-metodológicas. Poder Judiciário; Normativismo; Materialismo histórico

  9. EL TURISMO RESIDENCIAL ¿UNA MANIFESTACIÓN DE NUEVOS TURISMOS Y NUEVOS COMPORTAMIENTOS TURÍSTICOS EN EL SIGLO XXI?

    Directory of Open Access Journals (Sweden)

    Pere A. Salvà Tomàs

    2011-01-01

    Full Text Available El concepto de turismo residencial evoluciona desde su apreciación convencional con motivaciones parecidas al turismo de masas tradicional hacia una nueva aceptación que implica la creación de nuevos espacios de ocio alejados de sus territorios de origen. En esta nueva aceptación, que implica una alta movilidad humana residencial, es básica la búsqueda de un estilo de vida en la que es importante la autorrealización personal y un deseo de una mejor calidad de vida. Así el turismo residencial se conforma como una manifestación de los nuevos comportamientos turísticos en el siglo XXI.

  10. Mutaciones de los usos del agua en la agricultura española durante la primera década del siglo XXI

    Directory of Open Access Journals (Sweden)

    Alfredo Morales Gil

    2010-01-01

    Full Text Available El análisis de la dinámica de cambio de los regadíos españoles en la primera década del siglo XXI es el objetivo de esta investigación. Éstos se caracterizan, grosso modo, por un continuo incremento de la superficie y la implantación de la modalidad de riego localizado. Éste aumento, a diferencia de décadas anteriores, se debe en gran medida a la expansión que han registrado las superficies ocupadas por olivar, viñedo y algunos cereales, cultivos tradicionalmente de secano, en comarcas que, con anterioridad a estas fechas, no tenían tradición en las prácticas del regadío, frente a la atonía de aprovechamientos como hortalizas o ciertos frutales.

  11. A luta pelo direito de dizer a lingua : a linguistica e o purismo linguistico na passagem do seculo XX para o seculo XXI

    OpenAIRE

    Marina Celia Mendonça

    2006-01-01

    Resumo: O tema desta pesquisa é a luta pela direito de dizer a língua, entendendo-se por dizer a língua um uso da palavra com poder de dizer, uma publicização do dizer. O interesse central é analisar os embates entre a lingüística e o senso comum que ocorreram no final do século XX e início do século XXI no Brasil, os quais tematizaram principalmente o ensino de norma culta e a restrição ao uso de estrangeirismos no país. Beneficiei-me dos estudos bakhtinianos utilizando o dialogismo como sup...

  12. AMS analyses at ANSTO

    Energy Technology Data Exchange (ETDEWEB)

    Lawson, E.M. [Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW (Australia). Physics Division

    1998-03-01

    The major use of ANTARES is Accelerator Mass Spectrometry (AMS) with {sup 14}C being the most commonly analysed radioisotope - presently about 35 % of the available beam time on ANTARES is used for {sup 14}C measurements. The accelerator measurements are supported by, and dependent on, a strong sample preparation section. The ANTARES AMS facility supports a wide range of investigations into fields such as global climate change, ice cores, oceanography, dendrochronology, anthropology, and classical and Australian archaeology. Described here are some examples of the ways in which AMS has been applied to support research into the archaeology, prehistory and culture of this continent`s indigenous Aboriginal peoples. (author)

  13. AMS analyses at ANSTO

    International Nuclear Information System (INIS)

    Lawson, E.M.

    1998-01-01

    The major use of ANTARES is Accelerator Mass Spectrometry (AMS) with 14 C being the most commonly analysed radioisotope - presently about 35 % of the available beam time on ANTARES is used for 14 C measurements. The accelerator measurements are supported by, and dependent on, a strong sample preparation section. The ANTARES AMS facility supports a wide range of investigations into fields such as global climate change, ice cores, oceanography, dendrochronology, anthropology, and classical and Australian archaeology. Described here are some examples of the ways in which AMS has been applied to support research into the archaeology, prehistory and culture of this continent's indigenous Aboriginal peoples. (author)

  14. [Feminismes del segle XXI

    Directory of Open Access Journals (Sweden)

    Lluïsa Julià

    2013-07-01

    Full Text Available Las tres invitadas al diálogo, que comparten la experiencia de ser profesoras y feministas, repasan su trayectoria personal, donde se observan actitudes más militantes y otras que a partir de la vida académica encuentran un lugar para la acción. Se repasan cuestiones como el género en la educación –qué lugar debería ocupar este punto de vista y cuál es la realidad actual–, y se abordan temas más sociales como la importancia de la transmisión de modelos femeninos para que las jóvenes y los jóvenes puedan reconocer y combatir las actitudes y los discursos misóginos. Finalmente, reflexionan sobre su actividad investigadora en el mundo universitario y valoran la situación de los estudios feministas y de género.

  15. Shkola XXI veka

    Index Scriptorium Estoniae

    2003-01-01

    Rekonstrueeriti Tallinna 21. keskkooli ajalooline koolihoone. Lühidalt kooli ehitus- ja ümberehitusloost ning rekonstrueerimiskonkursist. Ehitati 1922-1923, arhitekt A. Perna; rekonstrueerimisprojekti autorid on Raul Järg ja Toomas Korb

  16. [Feminismos del siglo XXI

    Directory of Open Access Journals (Sweden)

    M. Xosé Agra

    2013-07-01

    Full Text Available ¿Qué soluciones políticas podemos encontrar para las nuevas formas de subjetividad? ¿Cómo debe la teoría feminista interpretar la voluntad de romper los límites y, al mismo tiempo, la necesidad de normalidad? Los pensadores posmodernos son escépticos respecto de las nociones tradicionales de identidad; los límites que definen al sujeto no sólo construyen sino que también excluyen. Debemos oponernos a las interpretaciones dominantes de normalidad y aceptar otras posibles alternativas a los modelos tradicionales. Necesitamos ir más allá del binario sistema sexo/género y de la orientación sexual y mantener una mentalidad abierta, persiguiendo una filosofía de la libertad.

  17. Radiocarbon dates XXI

    International Nuclear Information System (INIS)

    Lowdon, J.A.; Blake, W. Jr.

    1981-01-01

    This list includes 105 radiocarbon age determinations on 104 geological samples made by the Radiocarbon Dating Laboratory. They are on samples from various areas as follows: Labrador Shelf (2); Newfoundland (12); Nova Scotia (2); New Brunswick (1); Quebec (3); Ontario (1); Manitoba (1); Alberta (2); British Columbia (15); Yukon Territory (35); Northwest Territories, Mainland (10); Northwest Territories, Arctic Archipelago (21). Details of background and standard for the 2 L and 5 L counters during the period from November 4, 1980 to October 31, 1981 are summarized in Tables 1 and 2; Table 3 gives the number of counts used to determine the average background and standard counting rates; and Table 4 lists the number of different background and standard gas preparations used for counting

  18. Analyses of MHD instabilities

    International Nuclear Information System (INIS)

    Takeda, Tatsuoki

    1985-01-01

    In this article analyses of the MHD stabilities which govern the global behavior of a fusion plasma are described from the viewpoint of the numerical computation. First, we describe the high accuracy calculation of the MHD equilibrium and then the analysis of the linear MHD instability. The former is the basis of the stability analysis and the latter is closely related to the limiting beta value which is a very important theoretical issue of the tokamak research. To attain a stable tokamak plasma with good confinement property it is necessary to control or suppress disruptive instabilities. We, next, describe the nonlinear MHD instabilities which relate with the disruption phenomena. Lastly, we describe vectorization of the MHD codes. The above MHD codes for fusion plasma analyses are relatively simple though very time-consuming and parts of the codes which need a lot of CPU time concentrate on a small portion of the codes, moreover, the codes are usually used by the developers of the codes themselves, which make it comparatively easy to attain a high performance ratio on the vector processor. (author)

  19. Uncertainty Analyses and Strategy

    International Nuclear Information System (INIS)

    Kevin Coppersmith

    2001-01-01

    The DOE identified a variety of uncertainties, arising from different sources, during its assessment of the performance of a potential geologic repository at the Yucca Mountain site. In general, the number and detail of process models developed for the Yucca Mountain site, and the complex coupling among those models, make the direct incorporation of all uncertainties difficult. The DOE has addressed these issues in a number of ways using an approach to uncertainties that is focused on producing a defensible evaluation of the performance of a potential repository. The treatment of uncertainties oriented toward defensible assessments has led to analyses and models with so-called ''conservative'' assumptions and parameter bounds, where conservative implies lower performance than might be demonstrated with a more realistic representation. The varying maturity of the analyses and models, and uneven level of data availability, result in total system level analyses with a mix of realistic and conservative estimates (for both probabilistic representations and single values). That is, some inputs have realistically represented uncertainties, and others are conservatively estimated or bounded. However, this approach is consistent with the ''reasonable assurance'' approach to compliance demonstration, which was called for in the U.S. Nuclear Regulatory Commission's (NRC) proposed 10 CFR Part 63 regulation (64 FR 8640 [DIRS 101680]). A risk analysis that includes conservatism in the inputs will result in conservative risk estimates. Therefore, the approach taken for the Total System Performance Assessment for the Site Recommendation (TSPA-SR) provides a reasonable representation of processes and conservatism for purposes of site recommendation. However, mixing unknown degrees of conservatism in models and parameter representations reduces the transparency of the analysis and makes the development of coherent and consistent probability statements about projected repository

  20. Marcha de absorção dos micronutrientes para mudas de goiabeiras cultivares Paluma e Século XXI Micronutrient uptake in ‘Paluma’ and ‘Século XXI’ guava cuttings

    Directory of Open Access Journals (Sweden)

    Claudenir Facincani Franco

    2008-01-01

    Full Text Available O conhecimento da marcha de absorção dos micronutrientes em mudas de goiabeira garante melhor eficiência da adubação. O objetivo do trabalho foi determinar a marcha de absorção de micronutrientes em mudas de duas cultivares de goiabeira. O delineamento experimental utilizado foi em parcelas subdivididas com três repetições. Assim, foram utilizadas como tratamentos principais duas cultivares de goiabeira (Paluma e Século XXI obtidas por estacas herbáceas e como subparcelas, sete coletas de plantas, ao longo do período experimental (120 dias. Nos diferentes órgãos das mudas (folhas, caule e raízes, avaliou-se o acúmulo de micronutrientes, a cada quinze dias. A muda de goiabeira da cultivar Século XXI é mais exigente em micronutrientes do que as mudas da cultivar Paluma. O acúmulo médio de micronutrientes pelas mudas de goiabeira obedeceu à seguinte seqüência: Fe>Mn>Zn>B>Cu, sendo maior nas folhas para B, Cu, Mn e Zn, e nas raízes para Fe. O acúmulo de micronutrientes para as cultivares Paluma e Século XXI em µg por planta foi de: B (632 e 783, Cu (134 e 158, Fe (8103 e 5534, Mn (3052 e 3709 e Zn (760 e 997 respectivamente.Understanding micronutrient uptake in guava cuttings guarantees efficient fertilization. This research was undertaken to measure micronutrient uptake in cuttings from two guava cultivars. The experimental design was arranged in split-plots with three replications. Plots were represented by herbaceous cuttings from the guava cultivars 'Paluma' and 'Século XXI', while split-plots were the seven sampling dates during a 120-day period in nutritive solution. Accumulation of micronutrients was determined in the different plant organs every two weeks. The guava cultivar 'Século XXI' has higher micronutrient requirements than 'Paluma'. The mean micronutrient accumulation followed the order: Fe>Mn>Zn>B>Cu. The accumulation of B, Cu, Mn and Zn was higher in leaves, while Fe was more accumulated in roots

  1. A simple beam analyser

    International Nuclear Information System (INIS)

    Lemarchand, G.

    1977-01-01

    (ee'p) experiments allow to measure the missing energy distribution as well as the momentum distribution of the extracted proton in the nucleus versus the missing energy. Such experiments are presently conducted on SACLAY's A.L.S. 300 Linac. Electrons and protons are respectively analysed by two spectrometers and detected in their focal planes. Counting rates are usually low and include time coincidences and accidentals. Signal-to-noise ratio is dependent on the physics of the experiment and the resolution of the coincidence, therefore it is mandatory to get a beam current distribution as flat as possible. Using new technologies has allowed to monitor in real time the behavior of the beam pulse and determine when the duty cycle can be considered as being good with respect to a numerical basis

  2. EEG analyses with SOBI.

    Energy Technology Data Exchange (ETDEWEB)

    Glickman, Matthew R.; Tang, Akaysha (University of New Mexico, Albuquerque, NM)

    2009-02-01

    The motivating vision behind Sandia's MENTOR/PAL LDRD project has been that of systems which use real-time psychophysiological data to support and enhance human performance, both individually and of groups. Relevant and significant psychophysiological data being a necessary prerequisite to such systems, this LDRD has focused on identifying and refining such signals. The project has focused in particular on EEG (electroencephalogram) data as a promising candidate signal because it (potentially) provides a broad window on brain activity with relatively low cost and logistical constraints. We report here on two analyses performed on EEG data collected in this project using the SOBI (Second Order Blind Identification) algorithm to identify two independent sources of brain activity: one in the frontal lobe and one in the occipital. The first study looks at directional influences between the two components, while the second study looks at inferring gender based upon the frontal component.

  3. Pathway-based analyses.

    Science.gov (United States)

    Kent, Jack W

    2016-02-03

    New technologies for acquisition of genomic data, while offering unprecedented opportunities for genetic discovery, also impose severe burdens of interpretation and penalties for multiple testing. The Pathway-based Analyses Group of the Genetic Analysis Workshop 19 (GAW19) sought reduction of multiple-testing burden through various approaches to aggregation of highdimensional data in pathways informed by prior biological knowledge. Experimental methods testedincluded the use of "synthetic pathways" (random sets of genes) to estimate power and false-positive error rate of methods applied to simulated data; data reduction via independent components analysis, single-nucleotide polymorphism (SNP)-SNP interaction, and use of gene sets to estimate genetic similarity; and general assessment of the efficacy of prior biological knowledge to reduce the dimensionality of complex genomic data. The work of this group explored several promising approaches to managing high-dimensional data, with the caveat that these methods are necessarily constrained by the quality of external bioinformatic annotation.

  4. Analysing Access Control Specifications

    DEFF Research Database (Denmark)

    Probst, Christian W.; Hansen, René Rydhof

    2009-01-01

    When prosecuting crimes, the main question to answer is often who had a motive and the possibility to commit the crime. When investigating cyber crimes, the question of possibility is often hard to answer, as in a networked system almost any location can be accessed from almost anywhere. The most...... common tool to answer this question, analysis of log files, faces the problem that the amount of logged data may be overwhelming. This problems gets even worse in the case of insider attacks, where the attacker’s actions usually will be logged as permissible, standard actions—if they are logged at all....... Recent events have revealed intimate knowledge of surveillance and control systems on the side of the attacker, making it often impossible to deduce the identity of an inside attacker from logged data. In this work we present an approach that analyses the access control configuration to identify the set...

  5. Malaysia and forced migration

    Directory of Open Access Journals (Sweden)

    Arzura Idris

    2012-06-01

    Full Text Available This paper analyzes the phenomenon of “forced migration” in Malaysia. It examines the nature of forced migration, the challenges faced by Malaysia, the policy responses and their impact on the country and upon the forced migrants. It considers forced migration as an event hosting multifaceted issues related and relevant to forced migrants and suggests that Malaysia has been preoccupied with the issue of forced migration movements. This is largely seen in various responses invoked from Malaysia due to “south-south forced migration movements.” These responses are, however, inadequate in terms of commitment to the international refugee regime. While Malaysia did respond to economic and migration challenges, the paper asserts that such efforts are futile if she ignores issues critical to forced migrants.

  6. Labor Force Participation Rate

    Data.gov (United States)

    City and County of Durham, North Carolina — This thematic map presents the labor force participation rate of working-age people in the United States in 2010. The 2010 Labor Force Participation Rate shows the...

  7. Three-nucleon forces

    International Nuclear Information System (INIS)

    Sauer, P.U.

    2014-01-01

    In this paper, the role of three-nucleon forces in ab initio calculations of nuclear systems is investigated. The difference between genuine and induced many-nucleon forces is emphasized. Induced forces arise in the process of solving the nuclear many-body problem as technical intermediaries toward calculationally converged results. Genuine forces make up the Hamiltonian. They represent the chosen underlying dynamics. The hierarchy of contributions arising from genuine two-, three- and many-nucleon forces is discussed. Signals for the need of the inclusion of genuine three-nucleon forces are studied in nuclear systems, technically best under control, especially in three-nucleon and four-nucleon systems. Genuine three-nucleon forces are important for details in the description of some observables. Their contributions to observables are small on the scale set by two-nucleon forces. (author)

  8. RSOI: Force Deployment Bottleneck

    National Research Council Canada - National Science Library

    D'Amato, Mark

    1998-01-01

    .... This runs counter to the popular belief that strategic lift is the limiting constraint. The study begins by highlighting the genesis of the military's current force projection strategy and the resulting importance of rapid force deployments...

  9. Network class superposition analyses.

    Directory of Open Access Journals (Sweden)

    Carl A B Pearson

    Full Text Available Networks are often used to understand a whole system by modeling the interactions among its pieces. Examples include biomolecules in a cell interacting to provide some primary function, or species in an environment forming a stable community. However, these interactions are often unknown; instead, the pieces' dynamic states are known, and network structure must be inferred. Because observed function may be explained by many different networks (e.g., ≈ 10(30 for the yeast cell cycle process, considering dynamics beyond this primary function means picking a single network or suitable sample: measuring over all networks exhibiting the primary function is computationally infeasible. We circumvent that obstacle by calculating the network class ensemble. We represent the ensemble by a stochastic matrix T, which is a transition-by-transition superposition of the system dynamics for each member of the class. We present concrete results for T derived from boolean time series dynamics on networks obeying the Strong Inhibition rule, by applying T to several traditional questions about network dynamics. We show that the distribution of the number of point attractors can be accurately estimated with T. We show how to generate Derrida plots based on T. We show that T-based Shannon entropy outperforms other methods at selecting experiments to further narrow the network structure. We also outline an experimental test of predictions based on T. We motivate all of these results in terms of a popular molecular biology boolean network model for the yeast cell cycle, but the methods and analyses we introduce are general. We conclude with open questions for T, for example, application to other models, computational considerations when scaling up to larger systems, and other potential analyses.

  10. Acoustic force spectroscopy

    NARCIS (Netherlands)

    Sitters, G.; Kamsma, D.; Thalhammer, G.; Ritsch-Marte, M.; Peterman, E.J.G.; Wuite, G.J.L.

    2015-01-01

    Force spectroscopy has become an indispensable tool to unravel the structural and mechanochemical properties of biomolecules. Here we extend the force spectroscopy toolbox with an acoustic manipulation device that can exert forces from subpiconewtons to hundreds of piconewtons on thousands of

  11. Crossflow force transducer

    International Nuclear Information System (INIS)

    Mulcahy, T.M.

    1982-05-01

    A force transducer for measuring lift and drag coefficients for a circular cylinder in turbulent water flow is presented. In addition to describing the actual design and construction of the strain-gauged force- ring based transducer, requirements for obtained valid fluid force test data are discussed, and pertinent flow test experience is related

  12. Air Force Senior Leaders

    Science.gov (United States)

    Force TV Radio Week in Photos About Us Air Force Senior Leaders SECAF CSAF CMSAF Biographies Adjunct Professors Senior Mentor Biographies Fact Sheets Commander's Call Topics CCT Archive CSAF Reading List 2017 Media Sites Site Registration Contact Us Search AF.mil: Home > About Us > Air Force Senior Leaders

  13. HIGHLY QUALIFIED WORKING FORCE – KEY ELEMENT OF INNOVATIVE DEVELOPMENT MODEL

    Directory of Open Access Journals (Sweden)

    M. Avksientiev

    2014-12-01

    Full Text Available Highly qualified working force is a central element of intensive development model in modern society. The article surveys the experience of countries that managed to transform their economy to the innovative one. Ukrainian economy cannot stand aside processes that dominate the world economy trends, thus we are to use this experience to succeed in future. Today any government of the world is facing challenges that occur due to transformation of the economy into informational one. This type of economy causes its transformation form extensive to intensive one. The main reasons under that is limitation of nature resources, material factors of production. Thus this approach depends much on the quality of working force. Unfortunately in Ukraine there is a misbalance in specialist preparation. This puts additional pressure on the educational sphere also. In order to avoid this pressure we are to conduct reforms in education sphere. Nowadays, in the world views and concepts of governmental role in the social development are changing. This why, even at times of economic recession educational costs are not reduced under the new economical doctrine in the EU. Highly qualified specialists, while creating new products and services play role of engineers in XXI century. They are to lead their industries to world leading positions. From economic point of view, highly qualified specialists benefit society with higher income rates, taxation and thus, increasing the living standards in society. Thus, the majority if modern scientists prove the importance of highly trained working force for more effective economic development.

  14. Seismic fragility analyses

    International Nuclear Information System (INIS)

    Kostov, Marin

    2000-01-01

    In the last two decades there is increasing number of probabilistic seismic risk assessments performed. The basic ideas of the procedure for performing a Probabilistic Safety Analysis (PSA) of critical structures (NUREG/CR-2300, 1983) could be used also for normal industrial and residential buildings, dams or other structures. The general formulation of the risk assessment procedure applied in this investigation is presented in Franzini, et al., 1984. The probability of failure of a structure for an expected lifetime (for example 50 years) can be obtained from the annual frequency of failure, β E determined by the relation: β E ∫[d[β(x)]/dx]P(flx)dx. β(x) is the annual frequency of exceedance of load level x (for example, the variable x may be peak ground acceleration), P(fI x) is the conditional probability of structure failure at a given seismic load level x. The problem leads to the assessment of the seismic hazard β(x) and the fragility P(fl x). The seismic hazard curves are obtained by the probabilistic seismic hazard analysis. The fragility curves are obtained after the response of the structure is defined as probabilistic and its capacity and the associated uncertainties are assessed. Finally the fragility curves are combined with the seismic loading to estimate the frequency of failure for each critical scenario. The frequency of failure due to seismic event is presented by the scenario with the highest frequency. The tools usually applied for probabilistic safety analyses of critical structures could relatively easily be adopted to ordinary structures. The key problems are the seismic hazard definitions and the fragility analyses. The fragility could be derived either based on scaling procedures or on the base of generation. Both approaches have been presented in the paper. After the seismic risk (in terms of failure probability) is assessed there are several approaches for risk reduction. Generally the methods could be classified in two groups. The

  15. Astrophysical evidence for weak new forces

    International Nuclear Information System (INIS)

    Burgess, C.; Cloutier, J.

    1988-01-01

    Recent observations of the orbital precession rate for eclipsing binary star systems appear to be in disagreement with the predictions of general relativity. We here analyse whether these discrepancies can be interpreted as being due to the existence of a new, long range, very weak force. We find that, with a conservative estimate of the astrophysical errors involved, the binary-star data by itself is consistent with what would be expected of a new force. The coupling and range required to fit the data can be consistent with the present limits on the existence of new forces. The strongest constraints come from recent terrestrial searches for a ''fifth force''. This analysis underlines the fact that these binary star systems are sensitive to forces whose coupling strength can be as low as 10 -5 that of gravity

  16. Website-analyse

    DEFF Research Database (Denmark)

    Thorlacius, Lisbeth

    2009-01-01

    eller blindgyder, når han/hun besøger sitet. Studier i design og analyse af de visuelle og æstetiske aspekter i planlægning og brug af websites har imidlertid kun i et begrænset omfang været under reflektorisk behandling. Det er baggrunden for dette kapitel, som indleder med en gennemgang af æstetikkens......Websitet er i stigende grad det foretrukne medie inden for informationssøgning,virksomhedspræsentation, e-handel, underholdning, undervisning og social kontakt. I takt med denne voksende mangfoldighed af kommunikationsaktiviteter på nettet, er der kommet mere fokus på at optimere design og...... planlægning af de funktionelle og indholdsmæssige aspekter ved websites. Der findes en stor mængde teori- og metodebøger, som har specialiseret sig i de tekniske problemstillinger i forbindelse med interaktion og navigation, samt det sproglige indhold på websites. Den danske HCI (Human Computer Interaction...

  17. A channel profile analyser

    International Nuclear Information System (INIS)

    Gobbur, S.G.

    1983-01-01

    It is well understood that due to the wide band noise present in a nuclear analog-to-digital converter, events at the boundaries of adjacent channels are shared. It is a difficult and laborious process to exactly find out the shape of the channels at the boundaries. A simple scheme has been developed for the direct display of channel shape of any type of ADC on a cathode ray oscilliscope display. This has been accomplished by sequentially incrementing the reference voltage of a precision pulse generator by a fraction of a channel and storing ADC data in alternative memory locations of a multichannel pulse height analyser. Alternative channels are needed due to the sharing at the boundaries of channels. In the flat region of the profile alternate memory locations are channels with zero counts and channels with the full scale counts. At the boundaries all memory locations will have counts. The shape of this is a direct display of the channel boundaries. (orig.)

  18. Quantum fictitious forces

    DEFF Research Database (Denmark)

    Bialynicki-Birula, I; Cirone, M.A.; Dahl, Jens Peder

    2002-01-01

    We present Heisenberg's equation of motion for the radial variable of a free non-relativistic particle in D dimensions. The resulting radial force consists of three contributions: (i) the quantum fictitious force which is either attractive or repulsive depending on the number of dimensions, (ii......) a singular quantum force located at the origin, and (iii) the centrifugal force associated with non-vanishing angular momentum. Moreover, we use Heisenberg's uncertainty relation to introduce a lower bound for the kinetic energy of an ensemble of neutral particles. This bound is quadratic in the number...... of atoms and can be traced back to the repulsive quantum fictitious potential. All three forces arise for a free particle: "Force without force"....

  19. El conocimiento específico y la práctica pedagógica en el escenario de la educación superior del siglo XXI

    Directory of Open Access Journals (Sweden)

    Rina Márceles de Sanz

    2015-10-01

    Full Text Available El conocimiento específico y la práctica pedagógica en el escenario de la educación superior del siglo XXI se fundamentan en un proceso analítico, reflexivo y etnográfico, que determina en primera instancia algunos criterios importantes acerca del concepto de universidad para ver hacia dónde se proyecta. Este artículo analiza las concepciones de la práctica pedagógica bajo la luz de destacados autores como Olga Lucía Zuluaga, quien viene investigando el tema desde hace varias décadas y Basil Bernstein quien la estudia desde las relaciones sociales y de poder. Por último se hace una propuesta metodológica que se basa en la solución de problemas y la enseñanza problémica para lograr los cambios significativos que amerita la educación superior del siglo XXI.AbstractThe specific knowledge and the pedagogic practice in the higher/collage educational context of the XXI century is based on an analytical, reflexive and ethnographic process, that determines in first place some important criteria about the university concept to foresee where it is projected. This article focuses of teaching practices in light of authors such as Olga Lucia Zuluaga, who has been investigating the issue for several decades and Basil Berstein who has been studying the social and power relations. Finally a methodological proposal is being considered based on problem solutions and the teaching to achieve meaningful changes that Higher Education for the XXI century deserves. 

  20. StringForce

    DEFF Research Database (Denmark)

    Barendregt, Wolmet; Börjesson, Peter; Eriksson, Eva

    2017-01-01

    In this paper, we present the forced collaborative interaction game StringForce. StringForce is developed for a special education context to support training of collaboration skills, using readily available technologies and avoiding the creation of a "mobile bubble". In order to play String......Force two or four physically collocated tablets are required. These tablets are connected to form one large shared game area. The game can only be played by collaborating. StringForce extends previous work, both technologically and regarding social-emotional training. We believe String......Force to be an interesting demo for the IDC community, as it intertwines several relevant research fields, such as mobile interaction and collaborative gaming in the special education context....

  1. Quantum anticentrifugal force

    International Nuclear Information System (INIS)

    Cirone, M.A.; Schleich, W.P.; Straub, F.; Rzazewski, K.; Wheeler, J.A.

    2002-01-01

    In a two-dimensional world, a free quantum particle of vanishing angular momentum experiences an attractive force. This force originates from a modification of the classical centrifugal force due to the wave nature of the particle. For positive energies the quantum anticentrifugal force manifests itself in a bunching of the nodes of the energy wave functions towards the origin. For negative energies this force is sufficient to create a bound state in a two-dimensional δ-function potential. In a counterintuitive way, the attractive force pushes the particle away from the location of the δ-function potential. As a consequence, the particle is localized in a band-shaped domain around the origin

  2. Relativistic Linear Restoring Force

    Science.gov (United States)

    Clark, D.; Franklin, J.; Mann, N.

    2012-01-01

    We consider two different forms for a relativistic version of a linear restoring force. The pair comes from taking Hooke's law to be the force appearing on the right-hand side of the relativistic expressions: d"p"/d"t" or d"p"/d["tau"]. Either formulation recovers Hooke's law in the non-relativistic limit. In addition to these two forces, we…

  3. Hydrostatic force sensor

    International Nuclear Information System (INIS)

    Evans, M.S.; Stoughton, R.S.; Kazerooni, H.

    1994-08-01

    This paper presents a theoretical and experimental investigation of a new kind of force sensor which detects forces by measuring an induced pressure change in a material of large Poisson's ratio. In this investigation we develop mathematical expressions for the sensor's sensitivity and bandwidth, and show that its sensitivity can be much larger and its bandwidth is usually smaller than those of existing strain-gage-type sensors. This force sensor is well-suited for measuring large but slowly varying forces. It can be installed in a space smaller than that required by existing sensors

  4. Force induced DNA melting

    International Nuclear Information System (INIS)

    Santosh, Mogurampelly; Maiti, Prabal K

    2009-01-01

    When pulled along the axis, double-strand DNA undergoes a large conformational change and elongates by roughly twice its initial contour length at a pulling force of about 70 pN. The transition to this highly overstretched form of DNA is very cooperative. Applying a force perpendicular to the DNA axis (unzipping), double-strand DNA can also be separated into two single-stranded DNA, this being a fundamental process in DNA replication. We study the DNA overstretching and unzipping transition using fully atomistic molecular dynamics (MD) simulations and argue that the conformational changes of double-strand DNA associated with either of the above mentioned processes can be viewed as force induced DNA melting. As the force at one end of the DNA is increased the DNA starts melting abruptly/smoothly above a critical force depending on the pulling direction. The critical force f m , at which DNA melts completely decreases as the temperature of the system is increased. The melting force in the case of unzipping is smaller compared to the melting force when the DNA is pulled along the helical axis. In the case of melting through unzipping, the double-strand separation has jumps which correspond to the different energy minima arising due to sequence of different base pairs. The fraction of Watson-Crick base pair hydrogen bond breaking as a function of force does not show smooth and continuous behavior and consists of plateaus followed by sharp jumps.

  5. Intermolecular and surface forces

    CERN Document Server

    Israelachvili, Jacob N

    2011-01-01

    This reference describes the role of various intermolecular and interparticle forces in determining the properties of simple systems such as gases, liquids and solids, with a special focus on more complex colloidal, polymeric and biological systems. The book provides a thorough foundation in theories and concepts of intermolecular forces, allowing researchers and students to recognize which forces are important in any particular system, as well as how to control these forces. This third edition is expanded into three sections and contains five new chapters over the previous edition.· starts fr

  6. RSOI: Force Deployment Bottleneck

    National Research Council Canada - National Science Library

    D'Amato, Mark

    1998-01-01

    This study uses The Theory Of Constraints (TOC) management methodology and recent military missions to show that RSOI operations are generally the limiting constraint to force deployment operations...

  7. Air Force Academy Homepage

    Science.gov (United States)

    Communications Focal Point Contracting Squadron Force Support Squadron Mortuary Affairs Logistics Readiness Squadron Cadet Logistics Deployment and Distribution Material Management Operations PM Equipment Lab

  8. Simulation of a force on force exercise

    International Nuclear Information System (INIS)

    Terhune, R.; Van Slyke, D.; Sheppard, T.; Brandrup, M.

    1988-01-01

    The Security Exercise Evaluation System (SEES) is under development for use in planning Force on Force exercises and as an aid in post-exercise evaluation. This study is part of the development cycle where the simulation results are compared to field data to provide guidance for further development of the model. SEES is an event-driven stochastic computer program simulating individual movement and combat within an urban terrain environment. The simulator models the physics of movement, line of sight, and weapon effects. It relies on the controllers to provide all knowledge of security tactics, which are entered by the controllers during the simulation using interactive color graphic workstations. They are able to develop, modify and implement plans promptly as the simulator maintains real time. This paper reports on how SEES will be used to develop an intrusion plan, test the security response tactics and develop observer logistics. A Force on Force field exercise will then be executed to follow the plan with observations recorded. An analysis is made by first comparing the plan and events of the simulation with the field exercise, modifying the simulation plan to match the actual field exercise, and then running the simulation to develop a distribution of possible outcomes

  9. Equilibrium capillary forces with atomic force microscopy

    NARCIS (Netherlands)

    Sprakel, J.H.B.; Besseling, N.A.M.; Leermakers, F.A.M.; Cohen Stuart, M.A.

    2007-01-01

    We present measurements of equilibrium forces resulting from capillary condensation. The results give access to the ultralow interfacial tensions between the capillary bridge and the coexisting bulk phase. We demonstrate this with solutions of associative polymers and an aqueous mixture of gelatin

  10. The influence of lower leg configurations on muscle force variability.

    Science.gov (United States)

    Ofori, Edward; Shim, Jaeho; Sosnoff, Jacob J

    2018-04-11

    The maintenance of steady contractions is required in many daily tasks. However, there is little understanding of how various lower limb configurations influence the ability to maintain force. The purpose of the current investigation was to examine the influence of joint angle on various lower-limb constant force contractions. Nineteen adults performed knee extension, knee flexion, and ankle plantarflexion isometric force contractions to 11 target forces, ranging from 2 to 95% maximal voluntary contraction (MVC) at 2 angles. Force variability was quantified with mean force, standard deviation, and the coefficient of variation of force output. Non-linearities in force output were quantified with approximate entropy. Curve fitting analyses were performed on each set of data from each individual across contractions to further examine whether joint angle interacts with global functions of lower-limb force variability. Joint angle had significant effects on the model parameters used to describe the force-variability function for each muscle contraction (p force output were more explained by force level in smaller angle conditions relative to the larger angle conditions (p force production. Biomechanical factors, such as joint angle, along with neurophysiological factors should be considered together in the discussion of the dynamics of constant force production. Copyright © 2018 Elsevier Ltd. All rights reserved.

  11. Efeito de diferentes substratos e épocas de coleta no enraizamento de estacas herbáceas de goiabeira, cvs. paluma e século XXI Effect of different substrates and collection seasons on the herbaceous cuttings rooting of guava, cvs. paluma and século XXI

    Directory of Open Access Journals (Sweden)

    Corina Zietemann

    2007-04-01

    Full Text Available Este trabalho objetivou avaliar o enraizamento de estacas herbáceas das goiabeiras 'Paluma' e 'Século XXI' em diferentes substratos, coletadas na primavera e no verão. As estacas foram obtidas de ramos jovens não-lignificados de árvores de quatro anos, com um par de folhas no nó superior e 10 cm de comprimento. Para cada época testada, as estacas foram tratadas por imersão rápida, com cinco doses de AIB (0; 500; 1.000; 1.500 e 2.000 mg/L e dispostas em bandejas plásticas perfuradas com dois substratos (casca de arroz carbonizada e vermiculita em câmara de nebulização. Após 70 dias da estaquia, foram avaliadas as seguintes variáveis: porcentagem de enraizamento; massas seca e fresca das raízes; número de raízes por estaca; comprimento das raízes; sobrevivência; retenção foliar e porcentagem de estacas com calo. Concluiu-se que houve maior enraizamento das estacas coletadas no verão e que as doses de 1.500 e 2.000 mg/L de AIB são as mais adequadas para promover as melhores características de enraizamento das estacas para as cvs. Paluma e Século XXI, respectivamente. Os dois substratos utilizados são indicados para a estaquia das goiabeiras estudadas.The objective of this research was to evaluate the influence of different substrates and collection season on the herbaceous cutting rooting of 'Paluma' and 'Século XXI' guava plants (Psidium guajava L.. The herbaceous cuttings were obtained on spring and summer seasons, consisted of 10cm of length, two nodes and a pair of leaves in the superior node, and treated with five doses of IBA (0, 500, 1,500 and 2,000 mg/L for each season studied, and disposed into plastic boxes containing hull rice coal and vermiculita as substrates. After 70 days, the rooting percentage, roots length, number of roots, fresh and dry matter of roots, survival percentage, foliar retention and percentage of cuttings with callus were evaluated. The results showed that the better rooting percentage

  12. Overview of cooperative international piping benchmark analyses

    International Nuclear Information System (INIS)

    McAfee, W.J.

    1982-01-01

    This paper presents an overview of an effort initiated in 1976 by the International Working Group on Fast Reactors (IWGFR) of the International Atomic Energy Agency (IAEA) to evaluate detailed and simplified inelastic analysis methods for piping systems with particular emphasis on piping bends. The procedure was to collect from participating member IAEA countries descriptions of tests and test results for piping systems or bends (with emphasis on high temperature inelastic tests), to compile, evaluate, and issue a selected number of these problems for analysis, and to compile and make a preliminary evaluation of the analyses results. Of the problem descriptions submitted three were selected to be used: a 90 0 -elbow at 600 0 C with an in-plane transverse force; a 90 0 -elbow with an in-plane moment; and a 180 0 -elbow at room temperature with a reversed, cyclic, in-plane transverse force. A variety of both detailed and simplified analysis solutions were obtained. A brief comparative assessment of the analyses is contained in this paper. 15 figures

  13. Rate of force development

    DEFF Research Database (Denmark)

    Maffiuletti, Nicola A; Aagaard, Per; Blazevich, Anthony J

    2016-01-01

    The evaluation of rate of force development during rapid contractions has recently become quite popular for characterising explosive strength of athletes, elderly individuals and patients. The main aims of this narrative review are to describe the neuromuscular determinants of rate of force devel...

  14. The forces in Nature

    CERN Multimedia

    CERN AC

    1998-01-01

    The different forces, together with a pictorial analogy of how the exchange of particles works. The table lists the relative strength of the couplings, the quanta associated with the force fields and the bodies of phenomena in which they have a dominant role.

  15. New force in nature?

    International Nuclear Information System (INIS)

    Fischbach, E.; Sudarsky, D.; Szafer, A.; Talmadge, C.; Aronson, S.H.

    1986-01-01

    We review recent experimental and theoretical work dealing with the proposed fifth force. Further analysis of the original Eoetvoes experiments has uncovered no challenges to our original assertion that these data evidence a correlation characteristic of the presence of a new coupling to baryon number or hypercharge. Various models suggest that the proposed fifth force could be accomodated naturally into the existing theoretical framework

  16. Ponderomotive Forces in Cosmos

    Science.gov (United States)

    Lundin, R.; Guglielmi, A.

    2006-12-01

    This review is devoted to ponderomotive forces and their importance for the acceleration of charged particles by electromagnetic waves in space plasmas. Ponderomotive forces constitute time-averaged nonlinear forces acting on a media in the presence of oscillating electromagnetic fields. Ponderomotive forces represent a useful analytical tool to describe plasma acceleration. Oscillating electromagnetic fields are also related with dissipative processes, such as heating of particles. Dissipative processes are, however, left outside these discussions. The focus will be entirely on the (conservative) ponderomotive forces acting in space plasmas. The review consists of seven sections. In Section 1, we explain the rational for using the auxiliary ponderomotive forces instead of the fundamental Lorentz force for the study of particle motions in oscillating fields. In Section 2, we present the Abraham, Miller, Lundin-Hultqvist and Barlow ponderomotive forces, and the Bolotovsky-Serov ponderomotive drift. The hydrodynamic, quasi-hydrodynamic, and ‘`test-particle’' approaches are used for the study of ponderomotive wave-particle interaction. The problems of self-consistency and regularization are discussed in Section 3. The model of static balance of forces (Section 4) exemplifies the interplay between thermal, gravitational and ponderomotive forces, but it also introduces a set of useful definitions, dimensionless parameters, etc. We analyze the Alfvén and ion cyclotron waves in static limit with emphasis on the specific distinction between traveling and standing waves. Particular attention has been given to the impact of traveling Alfvén waves on the steady state anabatic wind that blows over the polar regions (Section~5). We demonstrate the existence of a wave-induced cold anabatic wind. We also show that, at a critical point, the ponderomotive acceleration of the wind is a factor of 3 greater than the thermal acceleration. Section 6 demonstrates various

  17. Desafios para o futuro da Psicologia: contribuições da Psicologia na construção do conhecimento no século XXI

    Directory of Open Access Journals (Sweden)

    Vicente Cassepp-Borges

    2013-01-01

    Full Text Available O objetivo deste ensaio foi refletir sobre o futuro da Psicologia como área do conhecimento e ciência aplicada. São abordadas as maneiras como a Psicologia pode provocar as mudanças da sociedade que devem ocorrer no século XXI e adaptar-se a elas. São apresentadas as visões skinnerianas do futuro da Psicologia, afirmando que o avanço da área pode trazer a solução para a maioria dos problemas da humanidade. O efeito Flynn é apontado como força produtora de mudanças psicológicas e sociais, pois a humanidade será composta por pessoas mais inteligentes, que devem desenvolver a Psicologia e dela necessitar. Psicólogos mais inteligentes construirão uma área cada vez mais sustentada em evidências empíricas. É assinalada a necessidade de a Psicologia se especializar, rever seus currículos em nível de graduação e unir-se em torno de um paradigma integrador. Conclui-se afirmando a necessidade de valorizar as opiniões de jovens psicólogos, além de criar melhores formas de interação entre pessoas e máquinas.

  18. Las cadenas hoteleras en el mundo y evolución de su operación en México al inicio del siglo XXI

    Directory of Open Access Journals (Sweden)

    Alfonso de Jesús Jiménez Martínez

    2008-12-01

    Full Text Available Las cadenas hoteleras internacionales desempeñan un papel relevante en el sistema turístico internacional, y cada vez hay un mayor número de cuartos asociados a cadenas hoteleras en el mundo. Las más grandes, son empresas gigantescas que actúan a nivel global y con estrategias de escala planetaria. Las cadenas tienen particularidades específicas ligadas a la condición preponderante de los países desarrollados en la economía internacional, y su presencia mundial y regional está ligada a diversos factores que inciden en su funcionamiento. Actualmente, la dinámica de las grandes corporaciones se entiende más por la rentabilidad que promete a los accionistas que por la búsqueda de satisfacción del consumidor (el turista. En este texto se busca una aproximación a la identidad y la distribución regional de las cadenas en la oferta turística mundial y sus particularidades al inicio del siglo XXI. Se describe y analiza la evolución de esas cadenas en México de acuerdo con criterios de categoría y localización.

  19. Espacio y tiempo en el siglo XXI: velocidad, instantaneidad y su repercusión en la comunicación humana

    Directory of Open Access Journals (Sweden)

    Germán Llorca Abad

    2015-12-01

    Full Text Available El espacio y el tiempo son dos conceptos que permiten al ser humano poner orden y comprender aquello que le rodea. La digitalización que caracteriza al siglo XXI ha resignificado estos parámetros reduciendo su valor a un aquí y ahora, minimizando las distancias y los márgenes temporales. El presente artículo expone en primer lugar un estado de la cuestión sobre el estudio del espacio y del tiempo y la influencia de la tecnología en estos conceptos. Asimismo reflexiona sobre la celeridad que domina los ritmos diarios; cómo las nuevas tecnologías han fomentado una dictadura de la instantaneidad que se ha normalizado sin cuestionar sus consecuencias. El espacio y el tiempo también se confunden en la red. Lo público y lo privado convergen en ella. La información que los usuarios comparten en Internet puede ser usada con fines poco lícitos. Finalmente, el artículo aborda el problema de exclusión social asociado a la brecha digital y propone soluciones para una alfabetización digital que fomente el uso responsable de las herramientas de comunicación digital.

  20. Revuelta anticolonial en Bolivia del siglo XXI: continuación de la "guerra interna" y derrota de los partidos neoliberales 2000-2003

    Directory of Open Access Journals (Sweden)

    Fredy Choque Mendoza

    2014-06-01

    Full Text Available Para explicar el actual “proceso de cambio” que hoy vive Bolivia, es necesario remontarnos a los orígenes del nacionalismo étnico contemporáneo (época post-52 y en este proceso de su ascenso político social, todo el movimiento indígena ha contribuido desde diversas posiciones ideológicas hacía un horizonte auto-determinativo a principios del siglo XXI, que se expresó en la denominada “guerra del agua” (2000 y finalmente la “guerra del gas” (2003. Mediante un levantamiento general indígena Rural-Urbano (al que se suman los mestizos de clase media.Una revuelta anticolonial e indianista y Cerco al Poder Colonial, que abarca este periodo, hasta la caída de unos los gobiernos neoliberales más sangrientos de los últimos tiempos. De esta forma se  inaugura una  nueva etapa signada por el encumbramiento en la Presidencia de la República de un líder de origen Aymara, sindicalista y socialista (2005. Si bien otros sectores afines a corrientes izquierdistas han contribuido ampliamente para el proceso de construcción del Estado Plurinacional el aporte Indianista- Katarista es innegable. Asimismo en este artículo enfatizamos en el “proceso de descolonización” y la construcción del un verdadero Estado Plurinacional Comunitario.

  1. Retos de la bioética en la medicina del siglo XXI Challenges of bioethics in twenty-first century medicine

    Directory of Open Access Journals (Sweden)

    Jorge Alberto Álvarez-Díaz

    2011-12-01

    Full Text Available Para plantear posibles retos de la bioética en la medicina del siglo XXI es necesario considerar que existieron algunos retos en el pasado (en el origen de esa nueva disciplina llamada bioética; que los retos se han ido modificando con el avance científico, biomédico y humanístico; considerando que los retos que pueden plantearse para el futuro serán, de diferentes maneras, resultado de este devenir histórico. Se plantean como grandes retos: los problemas no resueltos de justicia, equidad y pobreza; los retos que plantea la introducción de nuevas tecnologías con el paradigma de la nanomedicina y los retos que plantea el avance de las neurociencias con el paradigma de la neuroética.In order to propose possible challenges of bioethics in the twenty-first century medicine, it is necessary to consider that there were some past challenges (at the origin of this new discipline called bioethics, that the challenges have been modified with scientific, biomedical and humanistic breakthroughs, considering at the same time that challenges that may arise in the future will be, in different ways, a result of this historical evolution. The major challenges would be in the future: the unsolved problems of justice, equity and poverty; the challenges posed by the introduction of new technologies with the nanomedicine paradigm; and finally, the challenges driven by breakthroughs in neurosciences with the neuroethics paradigm.

  2. O retorno à natureza na ficção brasileira do começo do século XXI

    Directory of Open Access Journals (Sweden)

    Luciano Brito

    2014-07-01

    Full Text Available Este artigo procura entender a tentativa de retorno a representações da natureza na ficção brasileira do começo do século XXI, a partir dos romances Nove noites (2002 de Bernardo Carvalho, Órfãos do Eldorado (2008 de Milton Hatoum e Barba ensopada de sangue (2012 de Daniel Galera. Não sendo mais o sinal de uma necessidade de reivindicação de um patrimônio cultural nacional, como foi o seu papel durante séculos de historiografia literária e cultural, a natureza ressurge na ficção brasileira, de modo inédito, por outros sentidos – de revelação, destruição ou utopia –, excedendo e renovando sua imagem inicial, propagandística, de representação de uma nação. A consequência dessa passagem simbólica, e que mimetizaria o movimento da ficção brasileira atual, é a sua desapropriação como um bem orgulhosamente nacional e a sua integração no que poderíamos chamar de literatura mundial.

  3. Thomas Piketty e "O Capital no Século XXI": da economia política à Sociologia contemporânea

    Directory of Open Access Journals (Sweden)

    Bernardo Caprara

    Full Text Available Resumo O tema da desigualdade tem uma larga tradição de análise nas Ciências Sociais. Até o final do século XX, a desigualdade econômica ocupava boa parte dessas discussões. De lá para cá, as desigualdades passaram a ser vistas como multidimensionais, mas permanece relevante o estudo da distribuição desigual de renda, riqueza e capital. A obra "O Capital no Século XXI", do economista francês Thomas Piketty, publicada em 2013, na França, e em 2014, no Brasil, envereda por esse caminho e ilumina novas indagações sobre a atualidade e os rumos da desigualdade econômica. Esta resenha crítica objetiva apresentar as principais contribuições do autor para o debate público e acadêmico. Além disso, ambiciona refletir sobre uma agenda para a Sociologia atual, desde a importância de entender como ocorre a gênese e a legitimação da reprodução das desigualdades de oportunidades no nosso tempo.

  4. Fluid intelligence, traits of personality and personality disorders in a cohort of adult KS patients with the classic 47, XXY karyotype.

    Science.gov (United States)

    Liberato, D; Granato, S; Grimaldi, D; Rossi, F M; Tahani, N; Gianfrilli, D; Anzuini, A; Lenzi, A; Cavaggioni, G; Radicioni, A F

    2017-11-01

    Klinefelter's syndrome (KS) is associated with specific neurobehavioral features and personality traits. The aim of our study was to investigate fluid intelligence, personality traits and personality disorders (PD) and possible correlations with testosterone in a cohort of adult KS patients. We analyzed 58 adult KS patients with the classic 47, XXY karyotype. The Structured Clinical Interview for axis II disorders was used to assess DSM IV personality disorders. Personality traits were assessed using MMPI-2. Fluid intelligence was tested by using Raven's Standard Progressive Matrices (SPM) Test. Testosterone blood concentration was measured by CMIA. PD prevalence was 31%. Four altered MMPI scales (Social Responsibility, Dominance, Ego Strength and Repression) were found in more than 40% of patients. Overcontrolled hostility and MacAndrew Alcoholism Scale-Revised scales were altered in the PD- group only. Biz-Odd Thinking and Post-Traumatic Stress Disorder scale were associated with the presence of personality disorder. The raw SPM score was 44 ± 10.8 without any significant correlation with testosterone. No significant difference in mean age, SPM raw score and MMPI score was observed between eugonadal, hypogonadal and treated patients. Most KS patients had average fluid intelligence. PD prevalence was higher than in the general population. Testosterone was not correlated with fluid intelligence, personality traits or PD, but a reduction in marital distress was observed in treated patients. This could suggest that testosterone therapy can improve physical symptoms and this effect could also improve relationship abilities and wellness awareness.

  5. Flores contra canhões? O impasse da ética frente às guerras do século XXI

    Directory of Open Access Journals (Sweden)

    Fernando Magalhães

    2007-01-01

    Full Text Available Os conflitos que inauguram o século XXI dão a impressão de que a paz é um objetivo quase inatingível. Diante das novas ameaças, nada faz crer que o terror provocado pela guerra fria encontre-se superado. Ao lado das formas tradicionais de luta, uma guerra quase surda eclode no seio das sociedades. A fome, por exemplo, é uma arma que mata em silêncio, e a violência e a miséria revelam que o estado de natureza persiste. A questão que se coloca, então é a seguinte: é possível falar em paz pensando apenas em critérios éticos? Os problemas no Oriente Médio, o desrespeito às resoluções da ONU por parte de alguns Estados, tudo isso mostra a pouca eficácia do discurso quando não acompanhada da força. O objetivo deste trabalho é apontar os limites da ética pura para combater a violência e mostrar que a normatização do mundo não pode, ainda, prescindir da “crítica das armas”.

  6. Reflexões sobre a prática atual da enfermagem e prenúncios de mudanças para o século XXI

    Directory of Open Access Journals (Sweden)

    Evely M. Pereira Koller

    1992-03-01

    Full Text Available Este trabalho consta de reflexões acerca de temas polêmicos e controversos da prática de enfermagem, de tal modo inter-relacionados queo eixo central aponta prenúncios de mudanças para a profissão no século XXI. Discorre sobre o modelo biomédico, paradigma dominante no mundo contemporâneo, que supervaloriza o método científico em detrimento de uma visão humanista do homem e holística de saúde. A busca da superação deste modelo tem possibilitado práticas alternativas em saúde entre os diversos profissionais da área. Discute o saber e o poder na prática profissional, suas relações com o processo formador que pouco têm contribuído na formação de enfermeiro com consciência crítica. Superar esses impasses requer o redimensionamento do processo de trabalho, organização, mobilização e ações coletivas da categoria.

  7. A descriptive approach to the social and territorial inequality in rural areas of Northwest Argentina in the first decade of the XXI century

    Directory of Open Access Journals (Sweden)

    Julieta Krapovickas

    2018-02-01

    Full Text Available From the last decades of the twentieth century, the rural sector of the Argentine Northwest was the scene of deep territorial and productive transformations linked to the expansion of extractive activities. The effects of these activities include privatization, concentration and land grabs, generating an increase of social and territorial inequality. The aim of this paper is therefore to analyze the socio-territorial inequality in rural areas of Northwest Argentina in the first decade of the XXI century. Four dimensions were analyzed: poverty, education, habitat quality, and agrarian structure. For the analysis of the first three dimensions, data from national population census 2001 and 2010 were used. For the analysis of the territorial and productive transformations were used data from national agricultural censuses 1988, 2002 and 2008. The results allow us to observe that while the habitat quality and education improved during the first decade of the century, there are high poverty and vulnerability in a context of a progressively unequal agrarian structure.

  8. Reflexes sobre a economia poltica da comunicao e da cultura no sculo XXI Reflections about the Communications political and cultural economy on 21st century

    Directory of Open Access Journals (Sweden)

    Leonardo de Marchi

    2012-01-01

    Full Text Available Reunindo textos de autores referenciais de diferentes escolas da economia poltica da comunicao e da cultura (EPCC, esta coletnea apresenta um conjunto de reflexes que visa projetar a EPCC no sculo XXI. Tratando de temas como o conceito de indstrias criativas e dos dilogos tericos e metodolgicos entre a economia poltica e os estudos culturais. Busca-se desenvolver uma renovada agenda poltico-tecnolgica que d conta dos novos desafios para a produo, distribuio e consumo de informao e de bens culturais no capitalismo contemporneo.By gathering texts from referential authors of different schools of political economy of Communication and culture (PECC, this collection presents a set of ideas aimed at projecting the PECC into the 21th century. Addressing issues such as the concept of creative industries, theoretical and methodological dialogue between political economy and cultural studies, the book seeks to develop a renewed political and technological agenda that takes into account the new challenges for the production, circulation and consumption of information and cultural goods in contemporary capitalism.

  9. Género y trayectorias profesionales de las médicas de familia en Andalucía, España, a comienzos del siglo XXI

    Directory of Open Access Journals (Sweden)

    Lorena Saletti-Cuesta

    2014-01-01

    Full Text Available e l objetivo de este trabajo es estudiar, desde una perspectiva feminista, la di - versidad y homogeneidad en las trayectorias profesionales de las médicas de familia que ejercían en Andalucía a comienzos del siglo XXI, a través del análisis de los significados que ellas mismas confieren a su desarrollo profesional y de la influencia de los factores personales, familiares y laborales. r ealizamos un estudio cualitativo con seis grupos de discusión. Participaron 32 médicas de familia que se encontraban trabajando en los cen - tros de salud urbanos de la red sanitaria pública de Andalucía. e l análisis del discurso re - vela que la mayoría de las médicas no planifican sus metas profesionales y que, cuando lo hacen, las van entrelazando con las necesidades familiares. e sto se traduce en que sus trayectorias profesionales sean discontinuas. Por el contrario, las trayectorias orientadas al desarrollo profesional y a la planificación consciente de metas son más frecuentes entre las médicas que ocupan cargos de dirección en centros de salud.

  10. A literatura juvenil brasileira no início do século XXI: autores, obras e tendências

    Directory of Open Access Journals (Sweden)

    Gabriela Luft

    2010-01-01

    Full Text Available The present research offers a study on Brazilian youth literature published in the first decade of this century, by analyzing the books awarded by National Foundation of Children’s and Youth Books, and Brazilian Book Chamber, which awards the prize Jabuti. Based on systematized data by Marisa Lajolo and Regina Ziberman, it shows a brief overview of Brazilian children’s and youth literature from 1890 to 1980, the context of which allows tracing the paths and trends of the genre over time. After that, based on studies developed by Teresa Colomer, this study discusses the main features of the current juvenile narratives awarded from 2001 to 2009. Through reading, observation, analysis and comparison of works that make up the corpus, this research aims to show the characteristics of the Brazilian youth literature produced in the first decade of the XXI century, in order to answer what are the main trends of the genre and what is its position in the national scenery. We can observe a number of new authors who have turned up, the diversity of themes worked, and the increase of the narrative complexity.

  11. Ciganos e educação: um desafio para a construção da sociedade espanhola do século XXI

    Directory of Open Access Journals (Sweden)

    Jesús María Aparicio Gervás

    2014-12-01

    Full Text Available A educação do povo Cigano passou por sucessivas fases ao longo de mais de quinhentos anos de vida na Espanha. Começando com um longo período de exclusão durante os séculos XVI, XVII e XVIII e continuando durante os processos evangelizadores no decurso do século XIX pelo Padre Manjón, a doutrinação das Escolas do Patronato dos Subúrbios no período pós-guerra, as segregações das Escolas “Puente” da Espanha de Franco nos anos 70, os paternalistas da Educação Compensatória da Espanha Democrática e, finalmente, os “inclusivos” da Lei Orgânica de Educação, do começo do século XXI. Entretanto estas tentativas não tiveram êxito durante a sua implementação. O resultado é que ainda hoje persiste uma elevada taxa de absenteísmo e fracasso escolar entre a população cigana ao finalizar os estudos do ESO e segundo grau. Esta situação exige a apresentação de um novo paradigma educacional, com objetivos, conteúdos, recursos metodológicos e técnicas adaptadas a realidade do povo Cigano.

  12. PROYECTOS DE INTEGRACIÓN EN AMÉRICA LATINA DURANTE EL SIGLO XX. UNA MIRADA A LA INTEGRACIÓN REGIONAL EN EL SIGLO XXI

    Directory of Open Access Journals (Sweden)

    César Augusto Bermudez Torres

    2010-04-01

    Full Text Available Desde el siglo XIX, con la formación de los Estados nacionales en Latinoamérica, se han promovido proyectos integracionistas aún no concluidos. Actualmente, se resalta la necesidad de la integración entre países en distintos aspectos: económico, político, militar, diplomático. El propósito de este artículo es exponer las razones por las cuales el "panamericanismo" impuesto por los Estados Unidos se convirtió en el principal obstáculo para la consolidación de un verdadero proyecto de integración latinoamericano durante la primera mitad del siglo XX. Finalmente, después de realizar un recorrido por distintos intentos de integración durante la segunda mitad del siglo XX (observando las dificultades que ha tenido históricamente la comunidad regional, se pretende analizar la experiencia del Mercosur como el más consolidado proyecto de integración latinoamericano vigente en los comienzos del siglo XXI, en el ámbito económico e, incluso, político.

  13. Calculations of doses for the personnel wrapped up in the radiological accident of the Specialties Hospital of the National Medical Center ''Siglo XXI''

    International Nuclear Information System (INIS)

    Cortes C, A.

    2004-01-01

    In this work the methodology used by the National Commission of Nuclear Safety and Safeguards for the determination of the internal dose due to the ingestion of coffee with I-131 for the personnel of the service of nuclear medicine of the Hospital of Specialties of the National Medical Center ''Siglo XXI'' of the Mexican Institute of the Social Insurance (IMSS), that was poured in the coffeepot of the service by a deliberate act before mentioned, is presented. Three different techniques were used to determine the initial activity incorporated starting from the measurements of retained activity in thyroid for 6 people of the service of nuclear medicine; the techniques employee provided consistent results. Using the results of the technique of the best estimator, it was applied the proposed methodology by the International Commission of Radioprotection in its publication 30 to determine the absorbed doses by the personnel involved in the accident, with which the Commission determines the administrative consequences to those that it should be held the personnel and the directive of the service of nuclear medicine of the one nosocome. (Author)

  14. Hacia una nueva clasificación de los modelos pedagógicos: el pensamiento configuracional como paradigma científico y educativo del siglo xxi

    Directory of Open Access Journals (Sweden)

    Alexander Ortiz Ocaña

    2013-10-01

    Full Text Available En este trabajo, resultado del proyecto MODEPED: Identificación, caracterización y elaboración del modelo pedagógico de las instituciones educativas públicas del Caribe Colombiano, se hace una nueva clasificación de los modelos pedagógicos en cuatro grande grupos: la pedagogía tradicional (Ignacio Loyola; la escuela nueva (Jhon Dewey, Decroly, Cousinet; la tecnología educativa (B. F. Skinner y la escuela del desarrollo integral (E. Pichón Riviere, P. Freyre, L. S. Vigotsky, A. N. Leontiev, S. L. Rubinstein, A. R. Luria, V. Davidov, I. A. Galperin, L. Zankov, N. Talízina, C. Rogers, Hamachek, A. Maslow, J. Bruner, D. Ausubel, R. Sternberg, J. Piaget, R. Feuerstein, J. de Zubiría, M. de Zubiría. Finalmente, se propone una alternativa emergente, tanto para la investigación científica como para la educación. Se propone el paradigma científico neuroconfiguracional para hacer ciencia humana y social, y un nuevo paradigma educativo para el siglo XXI: el Pensamiento Configuracional (Alexander Ortiz. En este sentido, se define la noción de pensamiento configuracional y se proponen sus bases, sus dimensiones, particularidades, indicadores, estadios, proceso y requerimientos.    

  15. OOTW Force Design Tools

    Energy Technology Data Exchange (ETDEWEB)

    Bell, R.E.; Hartley, D.S.III; Packard, S.L.

    1999-05-01

    This report documents refined requirements for tools to aid the process of force design in Operations Other Than War (OOTWs). It recommends actions for the creation of one tool and work on other tools relating to mission planning. It also identifies the governmental agencies and commands with interests in each tool, from whom should come the user advisory groups overseeing the respective tool development activities. The understanding of OOTWs and their analytical support requirements has matured to the point where action can be taken in three areas: force design, collaborative analysis, and impact analysis. While the nature of the action and the length of time before complete results can be expected depends on the area, in each case the action should begin immediately. Force design for OOTWs is not a technically difficult process. Like force design for combat operations, it is a process of matching the capabilities of forces against the specified and implied tasks of the operation, considering the constraints of logistics, transport and force availabilities. However, there is a critical difference that restricts the usefulness of combat force design tools for OOTWs: the combat tools are built to infer non-combat capability requirements from combat capability requirements and cannot reverse the direction of the inference, as is required for OOTWs. Recently, OOTWs have played a larger role in force assessment, system effectiveness and tradeoff analysis, and concept and doctrine development and analysis. In the first Quadrennial Defense Review (QDR), each of the Services created its own OOTW force design tool. Unfortunately, the tools address different parts of the problem and do not coordinate the use of competing capabilities. These tools satisfied the immediate requirements of the QDR, but do not provide a long-term cost-effective solution.

  16. Forced magnetic reconnection

    Science.gov (United States)

    Vekstein, G.

    2017-10-01

    This is a tutorial-style selective review explaining basic concepts of forced magnetic reconnection. It is based on a celebrated model of forced reconnection suggested by J. B. Taylor. The standard magnetohydrodynamic (MHD) theory of this process has been pioneered by Hahm & Kulsrud (Phys. Fluids, vol. 28, 1985, p. 2412). Here we also discuss several more recent developments related to this problem. These include energetics of forced reconnection, its Hall-mediated regime, and nonlinear effects with the associated onset of the secondary tearing (plasmoid) instability.

  17. Bi-Force

    DEFF Research Database (Denmark)

    Sun, Peng; Speicher, Nora K; Röttger, Richard

    2014-01-01

    of pairwise similarities. We first evaluated the power of Bi-Force to solve dedicated bicluster editing problems by comparing Bi-Force with two existing algorithms in the BiCluE software package. We then followed a biclustering evaluation protocol in a recent review paper from Eren et al. (2013) (A...... comparative analysis of biclustering algorithms for gene expressiondata. Brief. Bioinform., 14:279-292.) and compared Bi-Force against eight existing tools: FABIA, QUBIC, Cheng and Church, Plaid, BiMax, Spectral, xMOTIFs and ISA. To this end, a suite of synthetic datasets as well as nine large gene expression...

  18. How Tidal Forces Cause Ocean Tides in the Equilibrium Theory

    Science.gov (United States)

    Ng, Chiu-king

    2015-01-01

    We analyse why it is erroneous to think that a tidal bulge is formed by pulling the water surface directly up by a local vertical tidal force. In fact, ocean tides are caused by the global effect of the horizontal components of the tidal forces.

  19. Force analysis of linear induction motor for magnetic levitation system

    NARCIS (Netherlands)

    Kuijpers, A.A.; Nemlioglu, C.; Sahin, F.; Verdel, A.J.D.; Compter, J.C.; Lomonova, E.

    2010-01-01

    This paper presents the analyses of thrust and normal forces of linear induction motor (LIM) segments which are implemented in a rotating ring system. To obtain magnetic levitation in a cost effective and sustainable way, decoupled control of thrust and normal forces is required. This study includes

  20. Institutionalizing Security Force Assistance

    National Research Council Canada - National Science Library

    Binetti, Michael R

    2008-01-01

    .... It looks at the manner in which security assistance guidance is developed and executed. An examination of national level policy and the guidance from senior military and civilian leaders highlights the important role of Security Force Assistance...

  1. Hanscom Air Force Base

    Data.gov (United States)

    Federal Laboratory Consortium — MIT Lincoln Laboratory occupies 75 acres (20 acres of which are MIT property) on the eastern perimeter of Hanscom Air Force Base, which is at the nexus of Lexington,...

  2. Packing force data correlations

    International Nuclear Information System (INIS)

    Heiman, S.M.

    1994-01-01

    One of the issues facing valve maintenance personnel today deals with an appropriate methodology for installing and setting valve packing that will minimize leak rates, yet ensure functionality of the the valve under all anticipated operating conditions. Several variables can affect a valve packing's ability to seal, such as packing bolt torque, stem finish, and lubrication. Stem frictional force can be an excellent overall indicator of some of the underlying conditions that affect the sealing characteristics of the packing and the best parameter to use when adjusting the packing. This paper addresses stem friction forces, analytically derives the equations related to these forces, presents a methodology for measuring these forces on valve stems, and attempts to correlate the data directly to the underlying variables

  3. Expeditionary Warfare- Force Protection

    National Research Council Canada - National Science Library

    Higgins, Eric

    2004-01-01

    In 2003, the Systems Engineering and Analysis students were tasked to develop a system of systems conceptual solution to provide force protection for the Sea Base conceptualized in the 2002 Expeditionary Warfare study...

  4. Pawnee Nation Energy Option Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Matlock, M.; Kersey, K.; Riding In, C.

    2009-07-21

    Pawnee Nation of Oklahoma Energy Option Analyses In 2003, the Pawnee Nation leadership identified the need for the tribe to comprehensively address its energy issues. During a strategic energy planning workshop a general framework was laid out and the Pawnee Nation Energy Task Force was created to work toward further development of the tribe’s energy vision. The overarching goals of the “first steps” project were to identify the most appropriate focus for its strategic energy initiatives going forward, and to provide information necessary to take the next steps in pursuit of the “best fit” energy options. Description of Activities Performed The research team reviewed existing data pertaining to the availability of biomass (focusing on woody biomass, agricultural biomass/bio-energy crops, and methane capture), solar, wind and hydropower resources on the Pawnee-owned lands. Using these data, combined with assumptions about costs and revenue streams, the research team performed preliminary feasibility assessments for each resource category. The research team also reviewed available funding resources and made recommendations to Pawnee Nation highlighting those resources with the greatest potential for financially-viable development, both in the near-term and over a longer time horizon. Findings and Recommendations Due to a lack of financial incentives for renewable energy, particularly at the state level, combined mediocre renewable energy resources, renewable energy development opportunities are limited for Pawnee Nation. However, near-term potential exists for development of solar hot water at the gym, and an exterior wood-fired boiler system at the tribe’s main administrative building. Pawnee Nation should also explore options for developing LFGTE resources in collaboration with the City of Pawnee. Significant potential may also exist for development of bio-energy resources within the next decade. Pawnee Nation representatives should closely monitor

  5. Comparison of BEACON and COMPARE reactor cavity subcompartment analyses

    International Nuclear Information System (INIS)

    Burkett, M.W.; Idar, E.S.; Gido, R.G.; Lime, J.F.; Koestel, A.

    1984-04-01

    In this study, a more advanced best-estimate containment code, BEACON-MOD3A, was ued to calculate force and moment loads resulting from a high-energy blowdown for two reactor cavity geometries previously analyzed with the licensing computer code COMPARE-MOD1A. The BEACON force and moment loads were compared with the COMPARE results to determine the safety margins provided by the COMPARE code. The forces and moments calculated by the codes were found to be different, although not in any consistent manner, for the two reactor cavity geometries studied. Therefore, generic summary statements regarding margins cannot be made because of the effects of the detailed physical configuration. However, differences in the BEACON and COMPARE calculated forces and moments can be attributed to differences in the modeling assumptions used in the codes and the analyses

  6. Demoulding force in micro-injection moulding

    DEFF Research Database (Denmark)

    Griffiths, C.A.; Dimov, S.S.; Scholz, S.

    2012-01-01

    The paper reports an experimental study that investigates part demoulding behavior in micro injection moulding (MIM) with a focus on the effects of pressure (P) and temperature (T) on the demoulding forces. Demoulding of a microfluidics part is conducted and the four processing parameters of melt...... temperature (Tb), mould temperature (Tm), holding pressure (Ph) and injection speed (Vi) are analysed. The result using different combinations of process parameters were used to identify the best processing conditions in regards to demoulding forces when moulding micro parts....

  7. Medellín global: fragmentaciones del desarrollo en la primera década del siglo xxi

    Directory of Open Access Journals (Sweden)

    Deiman Cuartas Celis

    2011-06-01

    Full Text Available This paper analyses the economic dynamics in Medellín from structural transformation and changes in local labor markets that directly influence the quality of life of the city inhabitants.The existence of a fragmented and disjointed development pattern is highlighted, noting that this development pattern is based on services sector led growth but under a regional export orientation that clearly favors the primary sector. Additionally, the paper addresses the weakness of the local industry and the institutional measures that aim at its strengthening, painting an overall picture of persistent social vulnerability that stems out of unemployment, low quality employment and informal employment.

  8. Ideologías excluyentes en el siglo XXI. Austria y el auge de la extrema derecha en Europa.

    Directory of Open Access Journals (Sweden)

    Jessica Montoya García

    2017-05-01

    Full Text Available The aim of this paper is to analyse the rise of exclusionary ideologies in Europe and, more specifically, in Austria during the last years. The outbreak of the global crisis in 2008 caused that far right parties began to make space within democratic institutions, both at national and European level. To this fact must be added the refugee crisis, used by these ideologies, based on xenophobia, exacerbated nationalism and Euroscepticism, to gain more weight in the European political scene. Meanwhile, the European Union observes astonished and passive how these parties are shaking the foundations of a common project more deficient than previously thought.

  9. La conformación del cooperativismo en Brasil: tendencias y desafíos en el Siglo XXI

    OpenAIRE

    Tania Cristina Teixeira; Amparo Soler Domingo

    2002-01-01

    The paper deals with the subject of cooperativism focusing on a view of the co-operative system in Brazil, as well as the process of formation and consolidation of the models and the influences of the different aspects of co-operative thought. We then present an analysis of the process of economic modernisation and the transformations in the co-operative system in the 70s to 90s decades, and lastly, we analyse the current tendencies and challenges for cooperativism in Brazil.

  10. Retos de la Bioética en el siglo XXI: "evolución para la evolución". La Ciencia Genómica, como caso biotecnológico paradigmático

    Directory of Open Access Journals (Sweden)

    Ana Isabel Gómez Córdoba

    2008-01-01

    Full Text Available La ciencia genómica cambió la evolución de la vida en el planeta, planteando una serie de dilemas éticos, que requieren de la transformación de la bioética para responder a los retos que enfrentara en el Siglo XXI. Este artículo manejará cuatro temas : Tecnociencia, biotecnología y ciencia genómica; bioética; bioética y ciencia genómica; y las relaciones entre la bioética, la ciencia genómica y el bioderecho.

  11. Analysis of experimental data: The average shape of extreme wave forces on monopile foundations and the NewForce model

    DEFF Research Database (Denmark)

    Schløer, Signe; Bredmose, Henrik; Ghadirian, Amin

    2017-01-01

    Experiments with a stiff pile subjected to extreme wave forces typical of offshore wind farm storm conditions are considered. The exceedance probability curves of the nondimensional force peaks and crest heights are analysed. The average force time history normalised with their peak values are co...... to the average shapes. For more nonlinear wave shapes, higher order terms has to be considered in order for the NewForce model to be able to predict the expected shapes.......Experiments with a stiff pile subjected to extreme wave forces typical of offshore wind farm storm conditions are considered. The exceedance probability curves of the nondimensional force peaks and crest heights are analysed. The average force time history normalised with their peak values...... are compared across the sea states. It is found that the force shapes show a clear similarity when grouped after the values of the normalised peak force, F/(ρghR2), normalised depth h/(gT2p) and presented in a normalised time scale t/Ta. For the largest force events, slamming can be seen as a distinct ‘hat...

  12. Educação Médica no Século XXI: O Desafio da Integração da Tecnologia e Humanidades

    Directory of Open Access Journals (Sweden)

    Maria Amélia Ferreira

    2017-09-01

    Full Text Available Os recentes debates sobre o papel da Medicina na Sociedade, têm evidenciado uma grande complexidade na adequação das novas referências no Ensino Superior à formação dos futuros profissionais de saúde. O quadro internacional de referência da educação médica tem sido alvo, nos últimos anos, de uma (reestruturação que se   pretende compatibilizar com a evolução das tecnologias na área da saúde e com os novos referenciais de formação integral dos futuros profissionais, onde emerge a necessidade de abordagem da área das humanidades. Como paradigma de referência para a educação médica do século XXI é hoje amplamente adotado o modelo de competências. O modelo pedagógico deve ser inovador sendo: (a inspirado no modo como trabalham os grupos de investigação; (b fortemente assente em práticas de colaboração; (c baseado na cultura profissional; (d potenciado pela valorização das dimensões experienciais. Apresenta-se um cenário de novas estratégias educativas, a redefinição do perfil do docente e a nova revolução da Medicina, com a dualidade da tecnologia e das humanidades como um recurso atitudinal na educação profissional em saúde, para a aquisição de competências transversais e “transferíveis”, competências humanísticas, capacidade de autoconhecimento e competências de reflexão crítica e profissional.

  13. La memoria de los ancianos mayas prehispánicos. Historiografía desde una perspectiva de género (siglos XX y XXI

    Directory of Open Access Journals (Sweden)

    Rocío García Valgañón

    2008-01-01

    Full Text Available En este texto se exponen los estudios realizados sobre ancianos mesoamericanos y, en particular, sobre las mujeres mayas prehispánicas, a lo largo del siglo XX y principios del XXI, en el campo de la Historia, Arqueología, Antropología, Epigrafía e Iconografía, desde una perspectiva de edad y género y yendo de lo general a lo concreto. De este modo se verá que los dioses, sus aspectos y funciones, han recibido un tratamiento prioritario al ser el objeto principal de las fuentes, dejándose de lado a los ancianos reales y los temas prosaicos. Las más desfavorecidas han sido las mujeres, de las que sólo se destaca su labor como parteras, curanderas, etc. y su faceta sobrenatural. Finalmente, el conocimiento que se tiene de unos y de otras se desprende de la comparación con sus homólogas divinas.In the following text I will explain the studies done in relation to eldery mesoamerican people, particularly prehispanic Mayan women, all through the 20th century to the beginning of the 21st century in the fields of History, Archaeology, Anthropology, Epigraphy, and Iconography, seen from the point of view of age and gender, and parting from the general to specifics. In this manner, we will see that the gods, their appearance, and their functions have received privileged treatment in these sources, leaving aside the real elders, and prosaic topics. Women have received the least favourable treatment, being only their work as midwives and healers, and their link to the supernatural what has been noticed. Finally, the knowlege that we have about women and men is the result of the comparison with their gods.

  14. The nation in 21st century Spain: an unendable debate | La nación en la España del siglo XXI: un debate inacabable

    Directory of Open Access Journals (Sweden)

    Xosé Manoel Núñez Seixas

    2010-12-01

    Full Text Available This article presents an interpretation of the recent evolution of the issue of nationality in contemporary Spain from an historical perspective, beginning with the approval of the 1978 Constitution and the ensuing implementation of the State of the Autonomous Communities at the politico-institutional level. It then goes on to examine the challenges faced by substate and state nationalisms in present-day Spain, which may be summed up in the growing plurality of sentiments of multiple belonging on the part of Spanish citizens, as well as the impact of globalization and foreign immigration. All these phenomena have transformed the conditions in which nationalisms interact, and will require0 political elites to rethink the theoretical frameworks of nationalist doctrines. | El artículo ofrece una interpretación en clave histórica de la evolución reciente de la cuestión nacional en la España contemporánea, desde la aprobación de la Constitución de 1978 y la articulación político-institucional del Estado de las Autonomías, y a continuación expone los retos a los que los nacionalismos subestatales y de Estado que conviven en territorio español se enfrentan en la primera década del siglo XXI, subrayando el hecho de que la pluralidad de opciones y pertenencias identitarias de los ciudadanos, el impacto de la globalización y de la inmigración han transformado las coordenadas básicas de la cuestión nacional y obligan a las élites a repensar los marcos teóricos de las doctrinas nacionalistas.

  15. Marketing y posicionamiento: un análisis desde la gubernamentalidad neoliberal. La gestión pública del turismo en la Argentina del siglo XXI

    Directory of Open Access Journals (Sweden)

    Fernando Francisco Mas

    2016-06-01

    Full Text Available El presente artículo trata sobre la “expansión” del neoliberalismo a las prácticas organizacionales contemporáneas. Entendemos al neoliberalismo como la lógica comportamental basada en la empresa y la competencia que, actualmente, prevalece con la pretensión de colonizar las diferentes esferas de lo social. En las últimas décadas, se han producido una serie de transferencias de herramientas de gestión propias del business a los modos de organización del trabajo estatal y, entre estos desplazamientos, encontramos el de la práctica del marketing. Considerándolo a éste como una tecnología que busca garantizar la competencia, estudiamos su funcionamiento en el marketing coordinado por la gestión pública del turismo. Tomando como caso a la Argentina del siglo XXI, analizamos el objetivo de comunicación comercial que remite al posicionamiento en articulación con otros componentes: el mecanismo de construcción de imagen y el diseño de marca de destinos/productos. Esta investigación tuvo la finalidad de interpretar críticamente los intentos de control sobre los trabajadores del sector público y de los prestadores privados que el Estado capacita. Concluimos que estos elementos operan como pautas generales y “mandatos” indirectos de conducción de los recursos humanos sobre cómo en la actualidad “hay” que trabajar en el marco de la gubernamentalidad neoliberal.

  16. Proceedings of the Twenty-First NASA Propagation Experiments Meeting (NAPEX XXI) and the Advanced Communications Technology Satellite (ACTS) Propagation Studies Miniworkshop

    Science.gov (United States)

    Golshan, Nasser (Editor)

    1997-01-01

    The NASA Propagation Experimenters (NAPEX) meeting is convened each year to discuss studies supported by the NASA Propagation Program. Representatives from the satellite communications industry, academia and government who have an interest in space-ground radio wave propagation are invited to NAPEX meetings for discussions and exchange of information. The reports delivered at this meeting by program managers and investigators present recent activities and future plans. This forum provides an opportunity for peer discussion of work in progress, timely dissemination of propagation results, and close interaction with the satellite communications industry. NAPEX XXI took place in El Segundo, California on June 11-12, 1997 and consisted of three sessions. Session 1, entitled "ACTS Propagation Study Results & Outcome " covered the results of 20 station-years of Ka-band radio-wave propagation experiments. Session 11, 'Ka-band Propagation Studies and Models,' provided the latest developments in modeling, and analysis of experimental results about radio wave propagation phenomena for design of Ka-band satellite communications systems. Session 111, 'Propagation Research Topics,' covered a diverse range of propagation topics of interest to the space community, including overviews of handbooks and databases on radio wave propagation. The ACTS Propagation Studies miniworkshop was held on June 13, 1997 and consisted of a technical session in the morning and a plenary session in the afternoon. The morning session covered updates on the status of the ACTS Project & Propagation Program, engineering support for ACTS Propagation Terminals, and the Data Center. The plenary session made specific recommendations for the future direction of the program.

  17. Magnitudes y tendencias de la desnutrición en la niñez argentina durante la primera década del siglo XXI

    Directory of Open Access Journals (Sweden)

    Fernando Longhi

    2015-01-01

    Full Text Available En este artículo se presentan las principales magnitudes y tendencias que caracterizan a la desnutrición en la niñez argentina en los primeros años del siglo XXI. Para abordar este problema se elaboró un indicador denominado Tasa Integral de Mortalidad por Desnutrición en la Niñez (TIMDN; se trata de un indicador de mortalidad que incluye tanto las causas directas de desnutrición (Kwashiorkor, marasmo, etc. como aquellas asociadas a este problema, muchas veces contributarias al cuadro nutricional. Se destacan entre estas causas las patologías infecciosas, diarreas, sarampión, parasitismo, bronquiolitis, neumonía, entre otras. El análisis multi-escala diacrónico y sincrónico permitió detectar brechas, asimetrías y comportamientos diferenciados tanto en la escala provincial como regional. En efecto, pudo observarse que, mientras la tasa nacional disminuyó, operaron diferentes comportamientos tanto regionales, con distintas magnitudes y tendencias, como provinciales, con algunos casos incluso de estancamiento y aumento de la desnutrición; esto resulta contrario a lo operado en el marco nacional y relacionado con un proceso de contra-transición epidemiológica señalado para el caso argentino. Con los resultados hallados se espera colaborar en la ejecución de políticas públicas específicas para aminorar y/o erradicar el problema de la desnutrición en las provincias argentinas, atendiendo a las especificidades que le son propias en cada territorio.

  18. Magnitudes y tendencias de la desnutrición en la niñez argentina durante la primera década del siglo XXI

    Directory of Open Access Journals (Sweden)

    Fernando Longhi

    2015-07-01

    Full Text Available En este artículo se presentan las principales magnitudes y tendencias que caracterizan a la desnutrición en la niñez argentina en los primeros años del siglo XXI. Para abordar este problema se elaboró un indicador denominado Tasa Integral de Mortalidad por Desnutrición en la Niñez (TIMDN; se trata de un indicador de mortalidad que incluye tanto las causas directas de desnutrición (Kwashiorkor, marasmo, etc. como aquellas asociadas a este problema, muchas veces contributarias al cuadro nutricional. Se destacan entre estas causas las patologías infecciosas, diarreas, sarampión, parasitismo, bronquiolitis, neumonía, entre otras. El análisis multi-escala diacrónico y sincrónico permitió detectar brechas, asimetrías y comportamientos diferenciados tanto en la escala provincial como regional. En efecto, pudo observarse que, mientras la tasa nacional disminuyó, operaron diferentes comportamientos tanto regionales, con distintas magnitudes y tendencias, como provinciales, con algunos casos incluso de estancamiento y aumento de la desnutrición; esto resulta contrario a lo operado en el marco nacional y relacionado con un proceso de contra-transición epidemiológica señalado para el caso argentino. Con los resultados hallados se espera colaborar en la ejecución de políticas públicas específicas para aminorar y/o erradicar el problema de la desnutrición en las provincias argentinas, atendiendo a las especificidades que le son propias en cada territorio.

  19. La publicidad y el márquetin en la ópera del siglo XXI: creación de marca audiovisual

    Directory of Open Access Journals (Sweden)

    Isabel VILLANUEVA-BENITO

    2017-07-01

    Full Text Available Desde hace una década, la ópera lidera un proceso de actualización social y de atracción de públicos internacionales gracias a la comunicación digital. Para ello, los teatros incorporan una estructura comercial del espectáculo en todas las fases de su creación y replantean las tradicionales relaciones establecidas con las disciplinas de la Publicidad y del Márquetin. En este artículo se analizan las estrategias comerciales, propias de estas disciplinas, que en la actualidad está liderando la ópera para alcanzar su objetivo. Mediante la aplicación de una metodología combinada, centrada en el análisis de contenido, el seguimiento hemerográfico y las entrevistas, se han identificado las principales tipologías de la publicidad audiovisual implementadas por la ópera, con el fin de determinar los formatos de mayor índice de éxito en la segunda mitad del siglo XXI (spots, tráilers, videoclips, branded content, lipdubs o flashmobs. La investigación se ha completado con el estudio de los principales cambios que algunas técnicas del márquetin off line y digital, como el patrocinio, el márquetin viral o las redes sociales, han producido en la imagen social del star system operístico. Un enfoque panorámico de la promoción audiovisual que se hace este arte, puede ayudarle a orientar estrategias futuras más especializadas.

  20. Ética, alfabetización económica e información como fundamentos de las “sociedades resilientes” del siglo XXI

    Directory of Open Access Journals (Sweden)

    Hernández-Carrión, José Rodolfo

    2016-07-01

    Full Text Available Las bibliotecas han afrontado en los últimos años el envite de la crisis y los recortes presupuestarios. Las competencias económicas e informacionales son elementos fundamentales para la superación de estas situaciones de crisis y tragedias potenciales. Aquella competencia o capacidad de hacer frente a una crisis y ser capaz de superarla es lo que se denomina resiliencia. La ética en el uso y tratamiento de la información, complementado por una adecuada alfabetización económica, es la propuesta aquí defendida para la conformación de las “sociedades resilientes” del siglo XXI. Tras una introducción multidisciplinar, abogando por la necesidad de la recuperación de la ética en el conjunto de todas las profesiones, se analiza el concepto de resiliencia, para dotarlo de contenido y significado. Resiliencia se convierte en el elemento nuclear de muchas de las políticas actualmente implementadas en la Comunidad Europea. Este naciente “mantra de desarrollo” de la resiliencia promete la recuperación de las potencialidades frente a una crisis eventual y la renovación reforzada con mejores perspectivas que antes de la misma. Dada la relativa ambigüedad y todavía escasa aplicación del concepto de resiliencia en general para el conjunto de la sociedad, exploramos la triada propuesta (ética-economía-información que nos puede conducir a la resiliencia. Entender estos tres elementos en modo integral puede permitir a la biblioteca y al profesional de la información poder participar en modo adecuado en esta tarea de la resiliencia sea a nivel local como, potencialmente, también en modo global.

  1. Forces in strategy formation

    DEFF Research Database (Denmark)

    Steensen, Elmer Fly; Sanchez, Ron

    2008-01-01

    This chapter proposes that organizational strategy formation should be characterized theoretically as a process that is subject to several interacting forces, rather than represented by separate discrete decisionmodels or theoretic perspectives, as is commonly done in the strategic management...... literature. Based on an extensive review of relevant theory and empirical work in strategic decision-making, organizational change theory, cognitive and social psychology, and strategy processes, seven kinds of ''forces'' - rational, imposed, teleological, learning, political, heuristic, and social...... - are identified as interacting in and having significant influence on the strategy formation process. It is further argued that by applying a holistic ''forces-view'' of the significant and interacting influences on strategy formation, we can better understand the dynamics and challenges in managing the process...

  2. Nursing in the era of globalisation: challenges for the 21st century Enfermería en la era de la globalización: retos para el siglo XXI A enfermagem na era da globalização: desafios para o século XXI

    Directory of Open Access Journals (Sweden)

    Alcione Leite da Silva

    2008-08-01

    Full Text Available The purpose of this paper was to reflect about issues related to the processes of globalization and the global impacts on health, pointing out some challenges for Nursing in the twenty-first century. In this sense, the author outlines the forms and trends of globalization in the contemporary world, and the drastic impacts on human health and environment. To respond to the challenges of the globalized world, some ways are indicated, among which, the strengthening of nursing discipline stands out, together with some guidelines for education, research and Nursing care, in a local and global scope.El objetivo de este texto encontrar un momento para reflexionar sobre los aspectos relacionados a los procesos de globalización, así como sobre los impactos en la salud global señalando algunos desafíos para la Enfermería en el siglo XXI. En este sentido, la autora esboza los contornos y tendencias de la globalización en el mundo contemporáneo, así como los drásticos impactos en la salud humana y ambiental. De esta forma, para responder a estos aspectos, señala algunos caminos entre los cuales se destacan el fortalecimiento de Enfermería como disciplina y el establecimiento de directivas en educación, investigación y cuidado en Enfermería, en el ámbito regional y mundial.O objetivo deste texto foi abrir espaço para reflexão acerca de questões relativas aos processos de globalização e impactos na saúde global, apontando alguns desafios para a Enfermagem no século XXI. Nesse sentido, a autora delineia os contornos e tendências da globalização no mundo contemporâneo e os impactos drásticos na saúde humana e no meio ambiente. Para responder aos desafios do mundo globalizado, aponta alguns caminhos, dentre os quais se destacam o fortalecimento da disciplina de Enfermagem e algumas diretrizes para a educação, pesquisa e cuidado de Enfermagem, em âmbito local e global.

  3. System modelling of a lateral force microscope

    International Nuclear Information System (INIS)

    Michal, Guillaume; Lu, Cheng; Kiet Tieu, A

    2008-01-01

    To quantitatively analyse lateral force microscope measurements one needs to develop a model able to relate the photodiode signal to the force acting on the tip apex. In this paper we focus on the modelling of the interaction between the cantilever and the optical chain. The laser beam is discretized by a set of rays which propagates in the system. The analytical equation of a single ray's position on the optical sensor is presented as a function of the reflection's state on top of the cantilever. We use a finite element analysis on the cantilever to connect the optical model with the force acting on the tip apex. A first-order approximation of the constitutive equations are derived along with a definition of the system's crosstalk. Finally, the model is used to analytically simulate the 'wedge method' in the presence of crosstalk in 2D. The analysis shows how the torsion loop and torsion offset signals are affected by the crosstalk.

  4. Electrochemical force microscopy

    Energy Technology Data Exchange (ETDEWEB)

    Kalinin, Sergei V.; Jesse, Stephen; Collins, Liam F.; Rodriguez, Brian J.

    2017-01-10

    A system and method for electrochemical force microscopy are provided. The system and method are based on a multidimensional detection scheme that is sensitive to forces experienced by a biased electrode in a solution. The multidimensional approach allows separation of fast processes, such as double layer charging, and charge relaxation, and slow processes, such as diffusion and faradaic reactions, as well as capturing the bias dependence of the response. The time-resolved and bias measurements can also allow probing both linear (small bias range) and non-linear (large bias range) electrochemical regimes and potentially the de-convolution of charge dynamics and diffusion processes from steric effects and electrochemical reactivity.

  5. Bolt Shear Force Sensor

    Science.gov (United States)

    2015-03-12

    0030] FIG. 7 is an isometric view of a deformable ring of the bolt shear force sensor of the present invention with an optical Attorney Docket No...102587 9 of 19 fiber having Bragg gratings wound around the ring; [0031] FIG. 8 is an isometric view of the deformable ring with wire strain... strength . [0047] Once the joint is subjected to an external load (see force arrows “F” and “F/2”); any frictional resistance to slip is overcome and

  6. Particles and forces

    International Nuclear Information System (INIS)

    Peierls, R.

    1981-01-01

    The particles and forces of matter, found in the Universe, are discussed with especial reference to some of the laws which govern behaviour in the sub-atomic world and which determine the way forces work to give matter its various characteristics. The recent history of the search for elementary constituents of matter in this century is outlined and the replacement of the simplicity anticipated in the 1930s by the proliferation of particle states uncovered in the 1950s and 1960s which led to the quark model is examined. (U.K.)

  7. Nuclear Forces from Effective Field Theory

    International Nuclear Information System (INIS)

    Krebs, H.

    2011-01-01

    with and without explicit Δ degrees of freedom are remarkably similar. We are looking forward to numerical studies of N 3 LO three-nucleon forces and implementations of N 2 LO forces in the Δ-full EFT in future NN partial-wave analyses. (author)

  8. Passive safety injection experiments and analyses (PAHKO)

    International Nuclear Information System (INIS)

    Tuunanen, J.

    1998-01-01

    PAHKO project involved experiments on the PACTEL facility and computer simulations of selected experiments. The experiments focused on the performance of Passive Safety Injection Systems (PSIS) of Advanced Light Water Reactors (ALWRs) in Small Break Loss-Of-Coolant Accident (SBLOCA) conditions. The PSIS consisted of a Core Make-up Tank (CMT) and two pipelines (Pressure Balancing Line, PBL, and Injection Line, IL). The examined PSIS worked efficiently in SBLOCAs although the flow through the PSIS stopped temporarily if the break was very small and the hot water filled the CMT. The experiments demonstrated the importance of the flow distributor in the CMT to limit rapid condensation. The project included validation of three thermal-hydraulic computer codes (APROS, CATHARE and RELAP5). The analyses showed the codes are capable to simulate the overall behaviour of the transients. The detailed analyses of the results showed some models in the codes still need improvements. Especially, further development of models for thermal stratification, condensation and natural circulation flow with small driving forces would be necessary for accurate simulation of the PSIS phenomena. (orig.)

  9. Low force cementation.

    Science.gov (United States)

    Wilson, P R

    1996-07-01

    The marginal adaptation of full coverage restorations is adversely affected by the introduction of luting agents of various minimum film thicknesses during the cementation process. The increase in the marginal opening may have long-term detrimental effects on the health of both pulpal and periodontal tissues. The purpose of this study was to determine the effects of varying seating forces (2.5, 12.5, 25 N), venting, and cement types on post-cementation marginal elevation in cast crowns. A standardized cement space of 40 microns was provided between a machined gold crown and a stainless steel die. An occlusal vent was placed that could be opened or closed. The post-cementation crown elevation was measured, following the use of two commercially available capsulated dental cements (Phosphacap, and Ketac-cem Applicap). The results indicate that only the combination of Ketac-Cem Applicap and crown venting produced post-cementation crown elevation of less than 20 microns when 12.5 N seating force was used. Higher forces (25 N) and venting were required for comparable seating when using Phosphacap (19 microns). The amount of force required to allow maximum seating of cast crowns appears to be cement specific, and is reduced by effective venting procedures.

  10. Separation problems and forcing

    Czech Academy of Sciences Publication Activity Database

    Zapletal, Jindřich

    2013-01-01

    Roč. 13, č. 1 (2013), s. 1350002 ISSN 0219-0613 R&D Projects: GA AV ČR IAA100190902 Institutional research plan: CEZ:AV0Z10190503 Keywords : separation * set of uniqueness * forcing Subject RIV: BA - General Mathematics Impact factor: 0.364, year: 2012 http://www.worldscientific.com/doi/abs/10.1142/S0219061313500025

  11. Activation force splines

    DEFF Research Database (Denmark)

    Engell-Nørregård, Morten Pol; Erleben, Kenny

    We present a method for simulating the active contraction of deformable models, usable for interactive animation of soft deformable objects. We present a novel physical principle as the governing equation for the coupling between the low dimensional 1D activation force model and the higher...

  12. The fifth force

    International Nuclear Information System (INIS)

    Fischbach, E.; Sudarsky, D.; Szafer, A.; Talmadge, C.; Aronson, S.H.

    1986-01-01

    We present a phenomenological description of the ''fifth force'' which focuses on the implications of the existing data from satellite and geophysical measurements of gravity, the Eoetvoes experiment, decays into hyperphotons, and the energy-dependence of the K 0 - anti K 0 parameters

  13. Air Force Leadership Diversity

    Science.gov (United States)

    2017-04-06

    served as a deputy maintenance group commander. Following Air War College he will take command of the 8th Maintenance Group, Kunsan Air Base, Korea ...discrimination in terms of 3 race, religion , sex, etc.: the demographics we have all heard about for years. Air Force Policy Directive (AFPD) 36

  14. Projective absoluteness for Sacks forcing

    NARCIS (Netherlands)

    Ikegami, D.

    2009-01-01

    We show that Sigma(1)(3)-absoluteness for Sacks forcing is equivalent to the nonexistence of a Delta(1)(2) Bernstein set. We also show that Sacks forcing is the weakest forcing notion among all of the preorders that add a new real with respect to Sigma(1)(3) forcing absoluteness.

  15. Biodegradable Piezoelectric Force Sensor.

    Science.gov (United States)

    Curry, Eli J; Ke, Kai; Chorsi, Meysam T; Wrobel, Kinga S; Miller, Albert N; Patel, Avi; Kim, Insoo; Feng, Jianlin; Yue, Lixia; Wu, Qian; Kuo, Chia-Ling; Lo, Kevin W-H; Laurencin, Cato T; Ilies, Horea; Purohit, Prashant K; Nguyen, Thanh D

    2018-01-30

    Measuring vital physiological pressures is important for monitoring health status, preventing the buildup of dangerous internal forces in impaired organs, and enabling novel approaches of using mechanical stimulation for tissue regeneration. Pressure sensors are often required to be implanted and directly integrated with native soft biological systems. Therefore, the devices should be flexible and at the same time biodegradable to avoid invasive removal surgery that can damage directly interfaced tissues. Despite recent achievements in degradable electronic devices, there is still a tremendous need to develop a force sensor which only relies on safe medical materials and requires no complex fabrication process to provide accurate information on important biophysiological forces. Here, we present a strategy for material processing, electromechanical analysis, device fabrication, and assessment of a piezoelectric Poly-l-lactide (PLLA) polymer to create a biodegradable, biocompatible piezoelectric force sensor, which only employs medical materials used commonly in Food and Drug Administration-approved implants, for the monitoring of biological forces. We show the sensor can precisely measure pressures in a wide range of 0-18 kPa and sustain a reliable performance for a period of 4 d in an aqueous environment. We also demonstrate this PLLA piezoelectric sensor can be implanted inside the abdominal cavity of a mouse to monitor the pressure of diaphragmatic contraction. This piezoelectric sensor offers an appealing alternative to present biodegradable electronic devices for the monitoring of intraorgan pressures. The sensor can be integrated with tissues and organs, forming self-sensing bionic systems to enable many exciting applications in regenerative medicine, drug delivery, and medical devices.

  16. A Critique of the Meta-theoretical Explanations and Analyses of the ...

    African Journals Online (AJOL)

    conditions for the Stimulation and Attraction of Foreign Direct Investments. ... these explanations and analyses are able to sufficiently account for, and capture the critical forces, processes and factors that tend to shape the movement of capital globally.

  17. Calculations of doses for the personnel wrapped up in the radiological accident of the Specialties Hospital of the National Medical Center ''Siglo XXI''; Calculos de dosis para el personal involucrado en el accidente radiologico del Hospital de Especialidades del Centro Medico Nacional ''Siglo XXI''

    Energy Technology Data Exchange (ETDEWEB)

    Cortes C, A. [CNSNS, Dr. Barragan 779, Col Narvarte, Mexico D.F. (Mexico)]. e-mail: acortes@cnsns.gob.mx

    2004-07-01

    In this work the methodology used by the National Commission of Nuclear Safety and Safeguards for the determination of the internal dose due to the ingestion of coffee with I-131 for the personnel of the service of nuclear medicine of the Hospital of Specialties of the National Medical Center ''Siglo XXI'' of the Mexican Institute of the Social Insurance (IMSS), that was poured in the coffeepot of the service by a deliberate act before mentioned, is presented. Three different techniques were used to determine the initial activity incorporated starting from the measurements of retained activity in thyroid for 6 people of the service of nuclear medicine; the techniques employee provided consistent results. Using the results of the technique of the best estimator, it was applied the proposed methodology by the International Commission of Radioprotection in its publication 30 to determine the absorbed doses by the personnel involved in the accident, with which the Commission determines the administrative consequences to those that it should be held the personnel and the directive of the service of nuclear medicine of the one nosocome. (Author)

  18. Investigation of Calibrating Force Transducer Using Sinusoidal Force

    International Nuclear Information System (INIS)

    Zhang Li; Wang Yu; Zhang Lizhe

    2010-01-01

    Sinusoidal force calibration method was studied several years before at Physikalisch-Technische Bundesanstalt (PTB). A similar dynamic force calibration system is developed at Changcheng Institute of Metrology and Measurement (CIMM). It uses electro-dynamic shakers to generate dynamic force in the range from 1 N to 20 kN, and heterodyne laser interferometers are used for acceleration measurement. The force transducer to be calibrated is mounted on the shaker, and a mass block is screwed on the top of force transducer, the sinusoidal forces realized by accelerated load masses are traceable to acceleration and mass according to the force definition. The methods of determining Spatial-dependent acceleration on mass block and measuring the end mass of force transducer in dynamic force calibration are discussed in this paper.

  19. Sample preparation in foodomic analyses.

    Science.gov (United States)

    Martinović, Tamara; Šrajer Gajdošik, Martina; Josić, Djuro

    2018-04-16

    Representative sampling and adequate sample preparation are key factors for successful performance of further steps in foodomic analyses, as well as for correct data interpretation. Incorrect sampling and improper sample preparation can be sources of severe bias in foodomic analyses. It is well known that both wrong sampling and sample treatment cannot be corrected anymore. These, in the past frequently neglected facts, are now taken into consideration, and the progress in sampling and sample preparation in foodomics is reviewed here. We report the use of highly sophisticated instruments for both high-performance and high-throughput analyses, as well as miniaturization and the use of laboratory robotics in metabolomics, proteomics, peptidomics and genomics. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  20. Casimir forces and geometry

    International Nuclear Information System (INIS)

    Buescher, R.

    2005-01-01

    Casimir interactions are interactions induced by quantum vacuum fluctuations and thermal fluctuations of the electromagnetic field. Using a path integral quantization for the gauge field, an effective Gaussian action will be derived which is the starting point to compute Casimir forces between macroscopic objects analytically and numerically. No assumptions about the independence of the material and shape dependent contributions to the interaction are made. We study the limit of flat surfaces in further detail and obtain a concise derivation of Lifshitz' theory of molecular forces. For the case of ideally conducting boundaries, the Gaussian action will be calculated explicitly. Both limiting cases are also discussed within the framework of a scalar field quantization approach, which is applicable for translationally invariant geometries. We develop a non-perturbative approach to calculate the Casimir interaction from the Gaussian action for periodically deformed and ideally conducting objects numerically. The obtained results reveal two different scaling regimes for the Casimir force as a function of the distance between the objects, their deformation wavelength and -amplitude. The results confirm that the interaction is non-additive, especially in the presence of strong geometric deformations. Furthermore, the numerical approach is extended to calculate lateral Casimir forces. The results are consistent with the results of the proximity-force approximation for large deformation wavelengths. A qualitatively different behaviour between the normal and lateral force is revealed. We also establish a relation between the boundary induced change of the of the density of states for the scalar Helmholtz equation and the Casimir interaction using the path integral method. For statically deformed boundaries, this relation can be expressed as a novel trace formula, which is formally similar to the so-called Krein-Friedel-Lloyd formula. While the latter formula describes the

  1. Principles and applications of force spectroscopy using atomic force microscopy

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Young Kyu; Kim, Woong; Park, Joon Won [Dept. of Chemistry, Pohang University of Science and Technology, Pohang (Korea, Republic of)

    2016-12-15

    Single-molecule force spectroscopy is a powerful technique for addressing single molecules. Unseen structures and dynamics of molecules have been elucidated using force spectroscopy. Atomic force microscope (AFM)-based force spectroscopy studies have provided picoNewton force resolution, subnanometer spatial resolution, stiffness of substrates, elasticity of polymers, and thermodynamics and kinetics of single-molecular interactions. In addition, AFM has enabled mapping the distribution of individual molecules in situ, and the quantification of single molecules has been made possible without modification or labeling. In this review, we describe the basic principles, sample preparation, data analysis, and applications of AFM-based force spectroscopy and its future.

  2. Carlos Hugo Molina Saucedo. Andrés Ibáñez, un caudillo para el siglo XXI. La Comuna de Santa Cruz de la Sierra de 1876; Andrey Schelchkov. Andrés Ibáñez y la Revolución de la Igualdad en Santa Cruz: primer ensayo de federalismo en Bolivia, 1876-1877

    Directory of Open Access Journals (Sweden)

    Clayton Mendonça Cunha Filho

    2014-11-01

    Full Text Available Carlos Hugo Molina Saucedo. Andrés Ibáñez, un caudillo para el siglo XXI. La Comuna de Santa Cruz de la Sierra de 1876Andrey Schelchkov. Andrés Ibáñez y la Revolución de la Igualdad en Santa Cruz: primer ensayo de federalismo en Bolivia, 1876-1877

  3. В галерее SED ARTE открылась выставка "Натюрморт XXI века"

    Index Scriptorium Estoniae

    2011-01-01

    Galeriis SED ARTE avati 6. mail rahvusvaheline kunstinäitus "XXI sajandi natüürmort". Eksponeeritud on 47 kunstniku tööd Eestist, USA-st, Valgevenest, Ukrainast ja Venemaalt. Eestist osalevad Nikolai Kormašov, Olav Maran, Tauno Kangro, Slava Semerikov, Vladimir Anšon, Sergei Inkatov, Sergei Minin ja teised

  4. Ion Tentiuc, Contribuţii la istoria şi arheologia spaţiului pruto-nistrean. Siturile de la Durleşti şi Moleşti, Biblioteca Tyragetia, XXI (Chișinău: Muzeul Naţional de Istorie a Moldovei, 2012

    Directory of Open Access Journals (Sweden)

    Sergiu Musteata

    2013-12-01

    Full Text Available Review on book - Ion Tentiuc, Contribuţii la istoria şi arheologia spaţiului pruto-nistrean. Siturile de la Durleşti şi Moleşti, Biblioteca Tyragetia, XXI (Chișinău: Muzeul Naţional de Istorie a Moldovei, 2012

  5. Task Force report

    International Nuclear Information System (INIS)

    Anon.

    1987-01-01

    The International Task Force on Prevention of Nuclear Terrorism was formed in 1985 under the auspices of the Nuclear Control Institute. This report is a consensus report of the 26 task force members - all members not necessarily agreeing on every point and all wordings, but in each case a substantial majority did agree. First, the report defines the threat, then establishes the priorities. Short-term recommendations are presented on: (1) protecting nuclear weapons; (2) protecting nuclear materials; (3) protecting nuclear facilities; (4) intelligence programs; (5) civil liberties concerns; (6) controlling nuclear transfers; (7) US - Soviet cooperation; (8) arms control initiatives; (9) convention of physical protection of nuclear material; (10) role of emergency management programs; and (11) role of the media. Brief long-term recommendations are included on (1) international measures, and (2) emerging nuclear technologies. An Appendix, Production of Nuclear Materials Usable in Weapons is presented for further consideration (without recommendations)

  6. Force Modulator System

    Energy Technology Data Exchange (ETDEWEB)

    Redmond Clark

    2009-04-30

    Many metal parts manufacturers use large metal presses to shape sheet metal into finished products like car body parts, jet wing and fuselage surfaces, etc. These metal presses take sheet metal and - with enormous force - reshape the metal into a fully formed part in a manner of seconds. Although highly efficient, the forces involved in forming metal parts also damage the press itself, limit the metals used in part production, slow press operations and, when not properly controlled, cause the manufacture of large volumes of defective metal parts. To date, the metal-forming industry has not been able to develop a metal-holding technology that allows full control of press forces during the part forming process. This is of particular importance in the automotive lightweighting efforts under way in the US automotive manufacturing marketplace. Metalforming Controls Technology Inc. (MC2) has developed a patented press control system called the Force Modulator that has the ability to control these press forces, allowing a breakthrough in stamping process control. The technology includes a series of hydraulic cylinders that provide controlled tonnage at all points in the forming process. At the same time, the unique cylinder design allows for the generation of very high levels of clamping forces (very high tonnages) in very small spaces; a requirement for forming medium and large panels out of HSS and AHSS. Successful production application of these systems testing at multiple stamping operations - including Ford and Chrysler - has validated the capabilities and economic benefits of the system. Although this technology has been adopted in a number of stamping operations, one of the primary barriers to faster adoption and application of this technology in HSS projects is system cost. The cost issue has surfaced because the systems currently in use are built for each individual die as a custom application, thus driving higher tooling costs. This project proposed to better

  7. Descriptive Analyses of Mechanical Systems

    DEFF Research Database (Denmark)

    Andreasen, Mogens Myrup; Hansen, Claus Thorp

    2003-01-01

    Forord Produktanalyse og teknologianalyse kan gennmføres med et bredt socio-teknisk sigte med henblik på at forstå kulturelle, sociologiske, designmæssige, forretningsmæssige og mange andre forhold. Et delområde heri er systemisk analyse og beskrivelse af produkter og systemer. Nærværende kompend...

  8. Analysing and Comparing Encodability Criteria

    Directory of Open Access Journals (Sweden)

    Kirstin Peters

    2015-08-01

    Full Text Available Encodings or the proof of their absence are the main way to compare process calculi. To analyse the quality of encodings and to rule out trivial or meaningless encodings, they are augmented with quality criteria. There exists a bunch of different criteria and different variants of criteria in order to reason in different settings. This leads to incomparable results. Moreover it is not always clear whether the criteria used to obtain a result in a particular setting do indeed fit to this setting. We show how to formally reason about and compare encodability criteria by mapping them on requirements on a relation between source and target terms that is induced by the encoding function. In particular we analyse the common criteria full abstraction, operational correspondence, divergence reflection, success sensitiveness, and respect of barbs; e.g. we analyse the exact nature of the simulation relation (coupled simulation versus bisimulation that is induced by different variants of operational correspondence. This way we reduce the problem of analysing or comparing encodability criteria to the better understood problem of comparing relations on processes.

  9. Analysing Children's Drawings: Applied Imagination

    Science.gov (United States)

    Bland, Derek

    2012-01-01

    This article centres on a research project in which freehand drawings provided a richly creative and colourful data source of children's imagined, ideal learning environments. Issues concerning the analysis of the visual data are discussed, in particular, how imaginative content was analysed and how the analytical process was dependent on an…

  10. Impact analyses after pipe rupture

    International Nuclear Information System (INIS)

    Chun, R.C.; Chuang, T.Y.

    1983-01-01

    Two of the French pipe whip experiments are reproduced with the computer code WIPS. The WIPS results are in good agreement with the experimental data and the French computer code TEDEL. This justifies the use of its pipe element in conjunction with its U-bar element in a simplified method of impact analyses

  11. Millifluidic droplet analyser for microbiology

    NARCIS (Netherlands)

    Baraban, L.; Bertholle, F.; Salverda, M.L.M.; Bremond, N.; Panizza, P.; Baudry, J.; Visser, de J.A.G.M.; Bibette, J.

    2011-01-01

    We present a novel millifluidic droplet analyser (MDA) for precisely monitoring the dynamics of microbial populations over multiple generations in numerous (=103) aqueous emulsion droplets (100 nL). As a first application, we measure the growth rate of a bacterial strain and determine the minimal

  12. Analyser of sweeping electron beam

    International Nuclear Information System (INIS)

    Strasser, A.

    1993-01-01

    The electron beam analyser has an array of conductors that can be positioned in the field of the sweeping beam, an electronic signal treatment system for the analysis of the signals generated in the conductors by the incident electrons and a display for the different characteristics of the electron beam

  13. Modificações no consumo de bebidas de adolescentes de escolas públicas na primeira década do século XXI

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    Luana Silva Monteiro

    Full Text Available RESUMO: Objetivo: Avaliar mudanças no consumo de bebidas em adolescentes entre 2003 e 2008. Métodos: Foram realizados dois estudos transversais de base escolar com estudantes de 12 a 19 anos de idade de escolas públicas de Niterói, Rio de Janeiro. Dados de três registros alimentares foram utilizados para estimar o consumo médio diário, de dias de semana e de final de semana (volume e a contribuição para a ingestão diária de energia de leite, bebidas à base de leite, bebidas com adição de açúcar, suco de frutas frescas, bebidas cafeinadas e bebidas alcoólicas. Foram utilizados Modelos Lineares Generalizados (GLM para estimar médias ajustadas por idade e as diferenças nos estimadores segundo os dias de semana. Resultados: Foram investigados 433 adolescentes em 2003 e 510 foram investigados em 2008. A prevalência de excesso de peso foi de 17% em 2003 e de 22% em 2008 (p > 0,05. O leite foi a bebida mais consumida, sendo relatada por 89% dos adolescentes, seguido dos refrigerantes (75%. De maneira geral, no período de cinco anos, verificou-se aumento da prevalência de consumo de bebidas alcoólicas, bebidas à base de xarope de guaraná e sucos processados, especialmente nos dias de semana. O refrigerante foi a bebida que mais contribuiu para o consumo energético total, correspondendo, em média, a 4% da ingestão energética diária. Conclusão: As principais mudanças no perfil de consumo de bebidas entre os adolescentes de Niterói na primeira década do século XXI foram a tendência para redução do consumo de leite e o aumento no consumo das bebidas processadas e das bebidas alcoólicas.

  14. LA FORMACIÓN DE GESTORES EDUCATIVOS DE LAS INSTITUCIONES DE EDUCACIÓN SUPERIOR. UN MODELO PARA INTERVENIR PEDAGÓGICAMENTE EN LA SOCIEDAD DEL SIGLO XXI

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    José Antonio Corzo Sánchez

    2013-03-01

    Full Text Available En la presente investigación se logra significar a la formación inicial, continua y permanente en gestión educativa universitaria como un sistema de procesos de desarrollo humano para la transformación educativa social, lo cual permitió elaborar un modelo de la dinámica de la formación de gestores educativos de las Instituciones de Educación Superior conformado por cinco configuraciones y dos dimensiones que son constructos teóricos que revelan el nivel de síntesis interpretativo del proceso modelado. Éste sustentó el establecimiento de una estrategia de formación gerencial educativa para las mencionadas Instituciones. El proceso de formación inicial, continua y permanente en gestión educativa universitaria en su singularidad, como objeto de estudio, evidencia insuficiencias teóricas y metodológicas que fundamentan la necesidad de su reconstrucción conceptual desde una lógica integradora entre lo formativo, como célula dinamizadora de la relación entre lo funcional, lo estructural y lo significativo, de las funciones universitarias y su interacción contextual socio-cultural.PALABRAS CLAVE: gestión educativa; gestión universitaria; gestores educativosTHE FORMATION OF EDUCATIONAL AGENTS OF HIGHER EDUCATION INSTITUTIONS. A MODEL TO INTERVENE PEDAGOGICALLY IN THE SOCIETY OF THE XXI CENTURY ABSTRACTIn the present investigation it is possible to mean to the initial, continuous and permanent formation in administration educational university student as a system of processes of development human for the social educational transformation, that which allowed to elaborate a model of the dynamics of the formation of educational agents of the Institutions of Superior Education conformed by five configurations and two dimensions that are theoretical constructions that reveal the interpretive synthesis level of the modeling process. This sustained the establishment of a strategy of educational managerial formation for the mentioned

  15. Globalização social: desafio do século XXI GLOBALIZATION SOCIAL: CHALLENGE OF THE TWENTY-FIRST CENTURY

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    Antônio Carlos dos Santos

    2010-08-01

    Full Text Available A crítica de muitos à globalização é conseqüência dos rumos que ela está tomando. Embora a globalização seja um processo dinâmico em andamento, o seu avanço tem ocorrido de forma desequilibrada, gerando instabilidade política, econômica e social em várias regiões do planeta. O presente trabalho procura, de forma teórica, mostrar a falta da globalização social como um dos fatores que tem provocado desequilíbrio na dinâmica do processo de globalização. Pelo lado econômico, observa-se que a globalização ocorre de forma acelerada e já alcança os mais distantes pontos da face da Terra, ao passo que, pelo lado social, observa-se que a globalização está ausente em algumas regiões e, em outro tanto, ela ocorre de forma lenta e sem muito interesse. De nada vale os benefícios da globalização econômica se não existir a globalização social. Esse e o desafio do século XXI.The criticism of many of globalization is a consequence of directions it is taking. While globalization is a dynamic process in progress, its progress has occurred so unbalanced, creating politicalinstability, economic and social development in various regions of the planet. This paper demand, so theoretically, show the lack of social globalisation as one of the factors that have causedimbalance in the dynamics of the globalization process. On the economic side there is that globalization occurs so rapidly and have reached the most distant points of the face of theEarth, while the social side, there is that globalisation is absent in some regions, and in another both, it happens so slowly and without much interest. It is not worth the benefits of economicglobalization if there is the social globalisation. That and the challenge of the twenty-first century.

  16. La enseñanza del periodismo en el siglo XXI: un desafío entre lo impreso y lo digital

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    Maryalejandra Montiel

    2005-09-01

    Full Text Available El artículo presenta algunas de las consideraciones expuestas en una investigación efectuada en la escuela de Comunicación Social de la Universidad del Zulia, en el período julio-diciembre de 2004 cuyo objetivo fue identificar los lineamientos prospectivos a seguir en la práctica docente del área de tecnología de la información y la comunicación en el pensum de estudio de la escuela de Comunicación social de LUZ. Se parte e la necesidad de adecuar la capacidad tecnológica y de producción a las demandas y necesidades reales en la formación del comunicador social con el fin de responder, de manera satisfactoria a las dinámicas del mercado y a una sociedad que impone el uso de las tecnologías en el campo laboral. Los hallazgos plantean que la información del comunicador social no puede estar alejada de los cambios que la tecnología de la información y la comunicación impone en este siglo XXI. Tampoco se debe sobredimensionar sus características y potencialidades, pero sí reconocer los impactos que tiene sobre la profesión y la manera cómo se ha introducido aceleradamente dentro de este campo, en este sentido, muchas de las escuelas de comunicación social no han planificado la introducción de las tecnologías de la comunicación y la información en sus pensum de estudio y, por lo tanto, no hay una combinación de saberes fundamentales y aplicados y diferenciados en el proceso instruccional y en el modelo curricular, que le da organicidad de criterios y responda a las exigencias del mercado laboral, a las expectativas de los estudiantes, de los egresados y a la función misma de la universidad orientada al desarrollo completo de los individuos en sus relaciones con la sociedad, el mundo y la vida.

  17. EDUCAÇÃO PROFISSIONAL PARA OS JOVENS NAS POLÍTICAS EDUCACIONAIS DA 1ª DÉCADA DO SÉCULO XXI

    Directory of Open Access Journals (Sweden)

    Erika Silva Lima

    2015-08-01

    Full Text Available No Brasil são considerados jovens os cidadãos e cidadãs com idade compreendida entre os 15 e os 29 anos. São sujeitos de direitos e deveres e devem ter sua autonomia e identidade respeitadas. Na sociedade brasileira a maioria dos jovens das classes menos favorecidas economicamente já assume responsabilidades ligadas à provisão do próprio domicílio. Assim sendo, são vários os jovens que não concluem a Educação Básica, ou tem negada a possibilidade de ingressar no Ensino Superior. Para esses jovens poderiam ser oferecidas condições e oportunidades de acesso à Educação Profissional articulada à Educação Básica. É nesse sentido que se discute, neste artigo, a Educação Profissional para os jovens no Brasil, com ênfase nas políticas educacionais, articuladas à Educação Básica desenvolvidas na 1ª década do século XXI. Para tanto, foi realizada uma pesquisa documental nos principais documentos orientadores das políticas e dos programas voltados para Educação Profissional e também, uma pesquisa bibliografia, embasada principalmente em: Oliveira (2012 Moura (2012, Venturi e Abramo (2000 e Frigotto, Ciavatta e Ramos (2005. Fez-se ainda, um levantamento sobre matrículas de jovens na Educação Profissional, nos Censos Escolares de 2000 a 2010, disponibilizados no site do Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira (INEP. Os programas de Educação Profissional articulados à Educação Básica encontrados no período em estudo são políticas públicas de educação, trabalho e qualificação para os jovens brasileiros, especificamente, para aqueles que estão em situação de vulnerabilidade socioeconômica.

  18. Los estudiantes universitarios del siglo XXI en México: de la pasividad a la autonomía y al pensamiento crítico

    Directory of Open Access Journals (Sweden)

    María Zúñiga Sánchez

    2012-07-01

    Full Text Available Normal.dotm 0 0 1 173 987 Universidad de Salamanca 8 1 1212 12.0 0 false 18 pt 18 pt 0 0 false false false /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} El siglo XXI ha traído consigo una enorme cantidad de transformaciones en muchas esferas de la vida social, educativa, tecnológica, científica y familiar. Estas transformaciones han tocado de manera particular el ámbito educativo, con reformas en sus modelos educacionales y con ello los estudiantes universitarios hacen una ruptura con paradigmas de corte positivista en donde el alumno era visto como una fuente restringida por los arreglos contingenciales del profesor programador, los cuales se establecen incluso antes de la situación instruccional (Hernández Rojas, 1998. Aquel sujeto cuyo desempeño y aprendizaje escolar podía ser arreglado desde el exterior, se encuentra en un proceso de emancipación y toma conciencia ahora participa activamente en su propio aprendizaje. Muchas universidades en México trabajan para dar un giro decisivo proporcionando autonomía en sus estudiantes, mediante modelos como el constructivista, al mismo tiempo que se requiere tengan un pensamiento crítico, pero; esa autonomía no es auténtica, los estudiantes se subsumen al currículo de su institución y generan aprendizajes que se limitan a lo  que se les evaluará, aun así el estudiante es reificado.

  19. Health and inequality: institutions and public policies in the 21st century Salud y desigualdad: instituciones y políticas públicas en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Lígia Giovanella

    2002-06-01

    Full Text Available Este trabajo informa acerca del contenido del seminario "Salud y desigualdad: instituciones y políticas públicas en el siglo XXI", patrocinado por la Escuela Nacional de Salud Pública de Brasil/Fundación Oswaldo Cruz y la Organización Panamericana de la Salud, que tuvo lugar del 29 de noviembre al 1 de diciembre de 2001 en Rio de Janeiro, Brasil. El seminario constó de dos discursos que proporcionaron una perspectiva general de las desigualdades sanitarias en América Latina y de las políticas recientes destinadas a reducir estas desigualdades, de una mesa redonda que analizó las investigaciones sobre las raíces sociales de la pobreza en Brasil, y de tres talleres, el primero de los cuales trató de la pobreza, las desigualdades sociales y la equidad en el campo de la salud. Los participantes presentaron un análisis detallado de las vulnerabilidades de los grupos sociales y de las innovaciones en las políticas para combatir la pobreza y reducir las desigualdades sociales y sanitarias. El segundo taller, titulado "Instituciones, políticas, cultura y desigualdad", se centró en la influencia de las tradiciones culturales y políticas latinoamericanas en las instituciones y en la magnitud de la pobreza y la desigualdad. Se estudiaron nuevas iniciativas para aumentar la participación comunitaria en la vigilancia y gestión de las políticas públicas, fortaleciendo así la democracia. El tercer taller exploró las perpectivas de las políticas públicas para desarrollar la equidad en el campo de la salud. Se revisaron las repercusiones de las reformas de los sistemas de salud de América Latina en el acceso a los servicios y se compararon los planes de aseguramiento adoptados en Brasil, Chile, y Colombia. Los tres talleres proporcionaron una lista de temas para posibles proyectos de investigación conjunta entre los patrocinadores del seminario y otras instituciones. Los participantes del seminario concluyeron que los investigadores y

  20. Os romances sentimentais na cultura tecnológica: um estudo de como viver junto o lazer e o amor no século XXI

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    Cristina Silva

    2008-10-01

    Full Text Available O artigo tem como objetivo verificar as similaridades e as diferenças de tratamento da temática amorosa a fim de constatar as mudanças nas representações e significados do amor para as mulheres. Para tanto, compara-se o contexto sociocultural da década de 1980 com o do início do século XXI. Com esse intuito, o corpus da pesquisa são os romances sentimentais da editora Nova Cultural e da Harlequin Books, distribuídos atualmente no Brasil tanto pela mídia impressa como pela internet. A análise possibilita verificar as estratégias de abordagem da temática desde o surgimento dos primeiros romances desta espécie no Brasil, em 1978, até o “encontro digital” das apreciadoras desse tipo de literatura na web, bem como suas implicações na cultura contemporânea que busca o desejo de “viver junto” o amor. Palavras-chave: Amor; cultura contemporânea; romances sentimentais; web. ABSTRACT This text aims to verify the similarities and differences in the use of loverelated themes in order to observe the changes in representations and meanings of love to women. To do so the 1980’s sociocultural context is compared to its correspondent in the early 21st century. With this goal, the research’s core are the sentimental romance books from Nova Cultural publishing house and Harlequin Books, available in Brazil both in print and through the Internet. The analysis enables the verification of the theme approach strategies since their first publication in Brazil, in 1978, up to the “digital gathering” of fans of such literature on the web, as well as their implications in today´s culture which endeavors to “live love together”. Keywords: Love; contemporary culture; sentimental novels; web.

  1. ¿La infraestructura educativa en las Instituciones de Educación Superior públicas mexicanas cumplen con las nuevas demandas del Siglo XXI?

    Directory of Open Access Journals (Sweden)

    Alejandra Torres Landa López

    2010-10-01

    Full Text Available Los grandes avances de la tecnología han provocado evidentes cambios en la mayor parte de las actividades de la sociedad; en el ámbito educativo es evidente la incorporación de tecnología de información y comunicación (TIC y los cambios que esto ha provocado. Ante esta situación, surge la pregunta: ¿la infraestructura educativa proporciona ambientes de aprendizaje convenientes para que se lleven a cabo los procesos de enseñanza y de aprendizaje que la sociedad del siglo XXI demanda? El objetivo de este artículo es compartir la inquietud sobre la necesidad de poner mayor atención a las características de la infraestructura educativa de las instituciones de educación superior (IES públicas mexicanas, específicamente de aquellas que inciden en la formación de arquitectos y urbanistas mexicanos. A partir de un rastreo de fuentes y una primera revisión de literatura, se presentan las tendencias que guiarán una investigación más amplia en dos grandes áreas: la disciplinar y la socioeducativa. Se mencionan algunos de los estudios y líneas de investigación encontrados sobre el tema, principalmente con respecto a los docentes, los métodos de enseñanza y de aprendizaje, así como la evaluación institucional, elementos implicados en el proceso educativo en la formación de arquitectos y urbanistas. De igual manera, se muestran algunas de las investigaciones identificadas sobre infraestructura educativa, en la que se identifican estudios en tres dimensiones: la bibliohemerográfica, la física y la tecnológica, lo que ayudará a construir el estado de conocimiento de la investigación.

  2. CAMBIOS EN LA DISTRIBUCIÓN DEL INGRESO FAMILIAR EN COSTA RICA DURANTE LA PRIMERA DÉCADA DEL SIGLO XXI

    Directory of Open Access Journals (Sweden)

    Juan Diego Trejos S.

    2013-03-01

    Full Text Available Costa Rica no sigue durante la primera década del siglo XXI la tendencia observada para la mayoría de los países de la región, que experimentan una reducción de la desigualdad en la distribución del ingreso familiar per cápita. Durante la primera mitad de esa década sí se produce una reducción en la desigualdad pero se revierte en el quinquenio siguiente. Para estudiar esos cambios se utiliza una desagregación de la desigualdad, medida por el coeficiente de Gini, por fuentes de ingreso, usando 12 fuentes distintas. Los resultados señalan que la reducción de la desigualdad en la primera mitad de la década, se da en un contexto de crecimiento económico pero estancamiento de los ingresos reales, que se concentra en los estratos de mayores ingresos. Esto implica que la reducción de la desigualdad se concentró en la reducción de los ingresos reales de las fuentes con mayor poder concentrador (elasticidades Gini ingreso mayor a la unidad y cambios marginales positivos, como lo son los ingresos laborales de los más calificados, las rentas del capital y las pensiones contributivas. En la segunda mitad de la década, el repunte de la desigualdad se produce por un aumento significativo de los ingresos reales de todas las fuentes, pero principalmente de las que tienen un impacto concentrador que no puede ser neutralizado por la expansión de las fuentes que reducen la desigualdad (ingresos laborales de los trabajadores no calificados y las transferencias estatales. Los resultados sugieren la necesidad de aplicar una política de salarios mínimos más activa, reforzar los programas de apoyo productivo para el sector informal, ampliar la oferta de trabajadores más calificados a través de la política educativa y ampliar las transferencias monetarias hacia los más pobres, lo que requiere de una reforma tributaria.

  3. ``Force,'' ontology, and language

    Science.gov (United States)

    Brookes, David T.; Etkina, Eugenia

    2009-06-01

    We introduce a linguistic framework through which one can interpret systematically students’ understanding of and reasoning about force and motion. Some researchers have suggested that students have robust misconceptions or alternative frameworks grounded in everyday experience. Others have pointed out the inconsistency of students’ responses and presented a phenomenological explanation for what is observed, namely, knowledge in pieces. We wish to present a view that builds on and unifies aspects of this prior research. Our argument is that many students’ difficulties with force and motion are primarily due to a combination of linguistic and ontological difficulties. It is possible that students are primarily engaged in trying to define and categorize the meaning of the term “force” as spoken about by physicists. We found that this process of negotiation of meaning is remarkably similar to that engaged in by physicists in history. In this paper we will describe a study of the historical record that reveals an analogous process of meaning negotiation, spanning multiple centuries. Using methods from cognitive linguistics and systemic functional grammar, we will present an analysis of the force and motion literature, focusing on prior studies with interview data. We will then discuss the implications of our findings for physics instruction.

  4. The task force process

    International Nuclear Information System (INIS)

    Applegate, J.S.

    1995-01-01

    This paper focuses on the unique aspects of the Fernald Citizens Task Force process that have contributed to a largely successful public participation effort at Fernald. The Fernald Citizens Task Force passed quickly by many procedural issues. Instead, the Task Force concentrated on (a) educating itself about the site, its problems, and possible solutions, and (b) choosing a directed way to approach its mandate: To make recommendations on several open-quotes big pictureclose quotes issues, including future use of the site, cleanup levels, waste disposition, and cleanup priorities. This paper presents the approach used at Fernald for establishing and running a focused site-specific advisory board, the key issues that have been faced, and how these issues were resolved. The success of Fernald in establishing a strong and functioning site-specific advisory board serves as a useful model for other DOE facilities, although the Fernald model is just one of many approaches that can be taken. However, the approach presented here has worked extremely well for Fernald

  5. Gap Task Force

    CERN Multimedia

    Lissuaer, D

    One of the more congested areas in the ATLAS detector is the GAP region (the area between the Barrel Calorimeter and the End Cap calorimeter) where Inner Detector services, LAr Services and some Tile services all must co-habitat in a very limited area. It has been clear for some time that the space in the GAP region is not sufficient to accommodate all that is needed. In the last few month additional problems of routing all the services to Z=0 have been encountered due to the very limited space between the Tile Calorimeter and the first layer of Muon chambers. The Technical Management Board (TMB) and the Executive Board (EB) decided in the middle of March to establish a Task Force to look at this problem and come up with a solution within well-specified guidelines. The task force consisted of experts from the ID, Muon, Liquid Argon and Tile systems in addition to experts from the Technical Coordination team and the Physics coordinator. The task force held many meetings and in general there were some very l...

  6. Discrete sensors distribution for accurate plantar pressure analyses.

    Science.gov (United States)

    Claverie, Laetitia; Ille, Anne; Moretto, Pierre

    2016-12-01

    The aim of this study was to determine the distribution of discrete sensors under the footprint for accurate plantar pressure analyses. For this purpose, two different sensor layouts have been tested and compared, to determine which was the most accurate to monitor plantar pressure with wireless devices in research and/or clinical practice. Ten healthy volunteers participated in the study (age range: 23-58 years). The barycenter of pressures (BoP) determined from the plantar pressure system (W-inshoe®) was compared to the center of pressures (CoP) determined from a force platform (AMTI) in the medial-lateral (ML) and anterior-posterior (AP) directions. Then, the vertical ground reaction force (vGRF) obtained from both W-inshoe® and force platform was compared for both layouts for each subject. The BoP and vGRF determined from the plantar pressure system data showed good correlation (SCC) with those determined from the force platform data, notably for the second sensor organization (ML SCC= 0.95; AP SCC=0.99; vGRF SCC=0.91). The study demonstrates that an adjusted placement of removable sensors is key to accurate plantar pressure analyses. These results are promising for a plantar pressure recording outside clinical or laboratory settings, for long time monitoring, real time feedback or for whatever activity requiring a low-cost system. Copyright © 2016 IPEM. Published by Elsevier Ltd. All rights reserved.

  7. Adding Value to Force Diagrams: Representing Relative Force Magnitudes

    Science.gov (United States)

    Wendel, Paul

    2011-05-01

    Nearly all physics instructors recognize the instructional value of force diagrams, and this journal has published several collections of exercises to improve student skill in this area.1-4 Yet some instructors worry that too few students perceive the conceptual and problem-solving utility of force diagrams,4-6 and over recent years a rich variety of approaches has been proposed to add value to force diagrams. Suggestions include strategies for identifying candidate forces,6,7 emphasizing the distinction between "contact" and "noncontact" forces,5,8 and the use of computer-based tutorials.9,10 Instructors have suggested a variety of conventions for constructing force diagrams, including approaches to arrow placement and orientation2,11-13 and proposed notations for locating forces or marking action-reaction force pairs.8,11,14,15

  8. Force transmission in epithelial tissues.

    Science.gov (United States)

    Vasquez, Claudia G; Martin, Adam C

    2016-03-01

    In epithelial tissues, cells constantly generate and transmit forces between each other. Forces generated by the actomyosin cytoskeleton regulate tissue shape and structure and also provide signals that influence cells' decisions to divide, die, or differentiate. Forces are transmitted across epithelia because cells are mechanically linked through junctional complexes, and forces can propagate through the cell cytoplasm. Here, we review some of the molecular mechanisms responsible for force generation, with a specific focus on the actomyosin cortex and adherens junctions. We then discuss evidence for how these mechanisms promote cell shape changes and force transmission in tissues. © 2016 Wiley Periodicals, Inc.

  9. Students’ understanding of forces: Force diagrams on horizontal and inclined plane

    Science.gov (United States)

    Sirait, J.; Hamdani; Mursyid, S.

    2018-03-01

    This study aims to analyse students’ difficulties in understanding force diagrams on horizontal surfaces and inclined planes. Physics education students (pre-service physics teachers) of Tanjungpura University, who had completed a Basic Physics course, took a Force concept test which has six questions covering three concepts: an object at rest, an object moving at constant speed, and an object moving at constant acceleration both on a horizontal surface and on an inclined plane. The test is in a multiple-choice format. It examines the ability of students to select appropriate force diagrams depending on the context. The results show that 44% of students have difficulties in solving the test (these students only could solve one or two items out of six items). About 50% of students faced difficulties finding the correct diagram of an object when it has constant speed and acceleration in both contexts. In general, students could only correctly identify 48% of the force diagrams on the test. The most difficult task for the students in terms was identifying the force diagram representing forces exerted on an object on in an inclined plane.

  10. Force modulation for improved conductive-mode atomic force microscopy

    NARCIS (Netherlands)

    Koelmans, W.W.; Sebastian, Abu; Despont, Michel; Pozidis, Haris

    We present an improved conductive-mode atomic force microscopy (C-AFM) method by modulating the applied loading force on the tip. Unreliable electrical contact and tip wear are the primary challenges for electrical characterization at the nanometer scale. The experiments show that force modulation

  11. Workload analyse of assembling process

    Science.gov (United States)

    Ghenghea, L. D.

    2015-11-01

    The workload is the most important indicator for managers responsible of industrial technological processes no matter if these are automated, mechanized or simply manual in each case, machines or workers will be in the focus of workload measurements. The paper deals with workload analyses made to a most part manual assembling technology for roller bearings assembling process, executed in a big company, with integrated bearings manufacturing processes. In this analyses the delay sample technique have been used to identify and divide all bearing assemblers activities, to get information about time parts from 480 minutes day work time that workers allow to each activity. The developed study shows some ways to increase the process productivity without supplementary investments and also indicated the process automation could be the solution to gain maximum productivity.

  12. Mitogenomic analyses from ancient DNA

    DEFF Research Database (Denmark)

    Paijmans, Johanna L. A.; Gilbert, Tom; Hofreiter, Michael

    2013-01-01

    The analysis of ancient DNA is playing an increasingly important role in conservation genetic, phylogenetic and population genetic analyses, as it allows incorporating extinct species into DNA sequence trees and adds time depth to population genetics studies. For many years, these types of DNA...... analyses (whether using modern or ancient DNA) were largely restricted to the analysis of short fragments of the mitochondrial genome. However, due to many technological advances during the past decade, a growing number of studies have explored the power of complete mitochondrial genome sequences...... yielded major progress with regard to both the phylogenetic positions of extinct species, as well as resolving population genetics questions in both extinct and extant species....

  13. Recriticality analyses for CAPRA cores

    International Nuclear Information System (INIS)

    Maschek, W.; Thiem, D.

    1995-01-01

    The first scoping calculation performed show that the energetics levels from recriticalities in CAPRA cores are in the same range as in conventional cores. However, considerable uncertainties exist and further analyses are necessary. Additional investigations are performed for the separation scenarios of fuel/steel/inert and matrix material as a large influence of these processes on possible ramp rates and kinetics parameters was detected in the calculations. (orig./HP)

  14. Recriticality analyses for CAPRA cores

    Energy Technology Data Exchange (ETDEWEB)

    Maschek, W.; Thiem, D.

    1995-08-01

    The first scoping calculation performed show that the energetics levels from recriticalities in CAPRA cores are in the same range as in conventional cores. However, considerable uncertainties exist and further analyses are necessary. Additional investigations are performed for the separation scenarios of fuel/steel/inert and matrix material as a large influence of these processes on possible ramp rates and kinetics parameters was detected in the calculations. (orig./HP)

  15. Technical center for transportation analyses

    International Nuclear Information System (INIS)

    Foley, J.T.

    1978-01-01

    A description is presented of an information search/retrieval/research activity of Sandia Laboratories which provides technical environmental information which may be used in transportation risk analyses, environmental impact statements, development of design and test criteria for packaging of energy materials, and transportation mode research studies. General activities described are: (1) history of center development; (2) environmental information storage/retrieval system; (3) information searches; (4) data needs identification; and (5) field data acquisition system and applications

  16. Methodology of cost benefit analyses

    International Nuclear Information System (INIS)

    Patrik, M.; Babic, P.

    2000-10-01

    The report addresses financial aspects of proposed investments and other steps which are intended to contribute to nuclear safety. The aim is to provide introductory insight into the procedures and potential of cost-benefit analyses as a routine guide when making decisions on costly provisions as one of the tools to assess whether a particular provision is reasonable. The topic is applied to the nuclear power sector. (P.A.)

  17. Modernization of African Armed Forces

    DEFF Research Database (Denmark)

    Mandrup, Thomas

    2015-01-01

    Concept paper framing the debate at the Dakar Forum Workshop on Modernization of Armed forces in Africa.......Concept paper framing the debate at the Dakar Forum Workshop on Modernization of Armed forces in Africa....

  18. Force Dynamics of Verb Complementation

    Directory of Open Access Journals (Sweden)

    Jacek Woźny

    2015-12-01

    Full Text Available Force Dynamics of Verb Complementation The concepts of motion and force are both extensively discussed in cognitive linguistics literature. But they are discussed separately. The first usually in the context of ‘motion situations’ (Talmy, Slobin, Zlatev, the other as part of the Force Dynamics framework, which was developed by Talmy. The aim of this paper is twofold: first, to argue that the concepts of force and motion should not be isolated but considered as two inseparable parts of force-motion events. The second goal is to prove that the modified Force Dynamics (force-motion framework can be used for precise characterization of the verb complementation patterns. To this end, a random sample of 50 sentences containing the verb ‘went’ is analyzed, demonstrating the differences between the categories of intensive and intransitive complementation with respect to the linguistically coded parameters of force and motion.

  19. The adhesion force of Notch with Delta and the rate of Notch signaling

    OpenAIRE

    Ahimou, Francois; Mok, Lee-Peng; Bardot, Boris; Wesley, Cedric

    2004-01-01

    Notch signaling is repeatedly used during animal development to specify cell fates. Using atomic force microscopy on live cells, chemical inhibitors, and conventional analyses, we show that the rate of Notch signaling is linked to the adhesion force between cells expressing Notch receptors and Delta ligand. Both the Notch extracellular and intracellular domains are required for the high adhesion force with Delta. This high adhesion force is lost within minutes, primarily due to the action of ...

  20. Atomic Force Microscope

    Energy Technology Data Exchange (ETDEWEB)

    Day, R.D.; Russell, P.E.

    1988-12-01

    The Atomic Force Microscope (AFM) is a recently developed instrument that has achieved atomic resolution imaging of both conducting and non- conducting surfaces. Because the AFM is in the early stages of development, and because of the difficulty of building the instrument, it is currently in use in fewer than ten laboratories worldwide. It promises to be a valuable tool for obtaining information about engineering surfaces and aiding the .study of precision fabrication processes. This paper gives an overview of AFM technology and presents plans to build an instrument designed to look at engineering surfaces.

  1. The law of electromagnetic force

    Directory of Open Access Journals (Sweden)

    V.J. Kutkovetskyy

    2014-06-01

    Full Text Available Calculation peculiarities for Lorentz force, Ampere force, interaction of parallel electric currents, and the moment of electrical machines are analyzed. They have exceptions on application, and they are the rules which result from the law of electromagnetic force as coordinate derivative of the operating magnetic flow. An addition to the direction of electromagnetic force action is proposed. Standards of salient-pole electrical machine designing are considered.

  2. Trace of a water droplet exerted by coulomb force. 2

    International Nuclear Information System (INIS)

    Sugita, Hideaki; Murakami, Takuro; Nakazawa, Takeshi; Nakasako, Makoto; Yoshimura, Takuma; Osarakawa, Toshihiro

    2002-01-01

    The movement of water droplets in the air-water separator is based on the principle of the electrostatic precipitator with positive and negative poles. The mechanism of separation is that the water droplets charged negative ions or electrons by corona discharge are collected on the positive pole by Coulomb force operating between the both poles. This paper describes the theoretical analyses that how the movement of a water droplet is affected by Coulomb force in the air-water separator. (author)

  3. Condiciones dignas de la labor docente del siglo XXI, un derecho inalienable, no una opción / Dignified Teacher Working Conditions in the 21st Century, an Inalienable Right, not an Option

    Directory of Open Access Journals (Sweden)

    Guiselle María Garbanzo Vargas

    2011-11-01

    Full Text Available Recibido 14 de abril de 2011 • Aceptado 26 de agosto de 2011 • Corregido 29 de agosto de 2011 Resumen. Se desarrolla el tema de las condiciones dignas de la labor docente en el desafiante siglo XXI. El objetivo recae en realizar una contextualización de la sociedad emergente en el siglo XXI, en general; así como plantear una revisión, en América Latina, del contexto educativo y de las mismas condiciones laborales del profesional de la educación. Otro objetivo es revisar las condiciones laborales en que se encuentran los educadores en distintos sistemas educativos, incluyendo realidades de Europa y América Latina, entre otras. En las principales ideas que se abordan, se define el perfil del educador de siglo XXI en comparación con el educador de la sociedad tradicional y se desarrollan algunos indicadores de consenso en distintas realidades educativas, así como su integración en tres grandes dimensiones: cognitivas, operativas e institucionales. Sobresale, entre las principales conclusiones, la determinación de políticas públicas que respalden las condiciones laborales en las que se desempeñe el docente de manera digna, lo cual se considera fundamental para una educación inclusiva de calidad, en armonía con las exigencias de la desafiante sociedad emergente. Concluye la autora que este tema es inacabado y debe ser una constante en las agendas educativas de las distintas sociedades. Abstract. The author develops the topic of appropriate teacher working conditions in the challenging 21st Century. The objective is the contextualization of the emergent society in the 21st Century; propose a review of the Latin American educational context and the working conditions of education professionals. Another objective is to review the working conditions of teachers in different educations systems, including Europe and Latin America, among others. The profile of the 21st Century educator is defined in this paper, in comparison to teachers

  4. The modal logic of forcing

    NARCIS (Netherlands)

    Hamkins, J.D.; Löwe, B.

    2008-01-01

    A set theoretical assertion psi is forceable or possible, written lozenge psi, if psi holds in some forcing extension, and necessary, written square psi, if psi holds in all forcing extensions. In this forcing interpretation of modal logic, we establish that if ZFC is consistent, then the

  5. Small amplitude atomic force spectroscopy

    NARCIS (Netherlands)

    de Beer, Sissi; van den Ende, Henricus T.M.; Ebeling, Daniel; Mugele, Friedrich Gunther; Bhushan, Bharat

    2011-01-01

    Over the years atomic force microscopy has developed from a pure imaging technique to a tool that can be employed for measuring quantitative tip–sample interaction forces. In this chapter we provide an overview of various techniques to extract quantitative tip–sample forces focusing on both

  6. Assistência odontológica pública e suplementar no município de São Paulo na primeira década do século XXI Private and public dental care in the city of São Paulo in the first decade of the XXI century

    Directory of Open Access Journals (Sweden)

    Marco Antonio Manfredini

    2012-06-01

    Full Text Available Na primeira década do século XXI registra-se a ocorrência de dois movimentos importantes no âmbito da assistência odontológica pública e privada no Brasil: a entrada da saúde bucal na agenda de prioridades políticas do governo federal e o vigoroso crescimento na oferta de serviços odontológicos suplementares. Analisou-se a ocorrência desses fenômenos no município de São Paulo, mediante a busca de dados nos documentos oficiais e nas bases eletrônicas da Prefeitura Municipal de São Paulo, do Ministério da Saúde e da Agência Nacional de Saúde Suplementar (ANS, além de consulta à literatura científica. No período estudado, de janeiro de 2000 a dezembro de 2009, com base em indicadores como a Cobertura de Primeira Consulta Odontológica Programática e a Cobertura Populacional Potencial, verificaram-se percentuais que caracterizam baixa assistência pública e uma situação de grande distanciamento do princípio constitucional do acesso universal aos cuidados odontológicos. O crescimento do número de beneficiários de serviços suplementares, por meio de planos exclusivamente odontológicos e de outros planos foi expressivo em igual período, correspondendo a uma importante ampliação da cobertura populacional nesta modalidade assistencial. Constata-se que, comparativamente ao quadro geral nacional, a situação do município de São Paulo revela precariedade no acesso à assistência odontológica pública, com reduzida oferta de serviços a adultos e idosos. Considerando, ainda, as limitações do mercado de serviços suplementares para prover assistência odontológica para todos os brasileiros, reforça-se a necessidade de continuidade e expansão do Brasil Sorridente, que é a expressão programática da Política Nacional de Saúde Bucal.Two concomitant movements occur in the first decade of the XXI century within the private and public dental services in Brazil: the entrance of oral health on the agenda of

  7. Force and motion

    CERN Document Server

    Robertson, William C

    2002-01-01

    Intimidated by inertia? Frightened by forces? Mystified by Newton s law of motion? You re not alone and help is at hand. The stop Faking It! Series is perfect for science teachers, home-schoolers, parents wanting to help with homework all of you who need a jargon-free way to learn the background for teaching middle school physical science with confidence. With Bill Roberton as your friendly, able but somewhat irreverent guide, you will discover you CAN come to grips with the basics of force and motion. Combining easy-to-understand explanations with activities using commonly found equipment, this book will lead you through Newton s laws to the physics of space travel. The book is as entertaining as it is informative. Best of all, the author understands the needs of adults who want concrete examples, hands-on activities, clear language, diagrams and yes, a certain amount of empathy. Ideas For Use Newton's laws, and all of the other motion principles presented in this book, do a good job of helping us to underst...

  8. TRIGA forced shutdowns analysis

    International Nuclear Information System (INIS)

    Negut, Gheorghe; Laslau, Florica

    2008-01-01

    The need for improving the operation leads us to use new methods and strategies. Probabilistic safety assessments and statistical analysis provide insights useful for our reactor operation. This paper is dedicated to analysis of the forced shutdowns during the first reactor operation period, between 1980 to 1989. A forced shutdown data base was designed using data on forced shutdowns collected from the reactor operation logbooks. In order to sort out the forced shutdowns the records have the following fields: - current number, date, equipment failed, failure type (M for mechanical, E for electrical, D for irradiation device, U for human factor failure; - scram mode, SE for external scram, failure of reactor cooling circuits and/or irradiation devices, SR for reactor scram, exceeding of reactor nuclear parameters, SB for reactor scram by control rod drop, SM for manual scram required by the abnormal reactor status; - scram cause, giving more information on the forced shutdown. This data base was processed using DBase III. The data processing techniques are presented. To sort out the data, one of the criteria was the number of scrams per year, failure type, scram mode, etc. There are presented yearly scrams, total operation time in hours, total unavailable time, median unavailable time period, reactor availability A. There are given the formulae used to calculate the reactor operational parameters. There are shown the scrams per year in the 1980 to 1989 period, the reactor operation time per year, the reactor shutdown time per year and the operating time versus down time per year. Total number of scrams in the covered period was 643 which caused a reactor down time of 4282.25 hours. In a table the scrams as sorted on the failure type is shown. Summarising, this study emphasized some problems and difficulties which occurred during the TRIGA reactor operation at Pitesti. One main difficulty in creating this data base was the unstandardized scram record mode. Some times

  9. Chapter No.4. Safety analyses

    International Nuclear Information System (INIS)

    2002-01-01

    In 2001 the activity in the field of safety analyses was focused on verification of the safety analyses reports for NPP V-2 Bohunice and NPP Mochovce concerning the new profiled fuel and probabilistic safety assessment study for NPP Mochovce. The calculation safety analyses were performed and expert reviews for the internal UJD needs were elaborated. An important part of work was performed also in solving of scientific and technical tasks appointed within bilateral projects of co-operation between UJD and its international partnership organisations as well as within international projects ordered and financed by the European Commission. All these activities served as an independent support for UJD in its deterministic and probabilistic safety assessment of nuclear installations. A special attention was paid to a review of probabilistic safety assessment study of level 1 for NPP Mochovce. The probabilistic safety analysis of NPP related to the full power operation was elaborated in the study and a contribution of the technical and operational improvements to the risk decreasing was quantified. A core damage frequency of the reactor was calculated and the dominant initiating events and accident sequences with the major contribution to the risk were determined. The target of the review was to determine the acceptance of the sources of input information, assumptions, models, data, analyses and obtained results, so that the probabilistic model could give a real picture of the NPP. The review of the study was performed in co-operation of UJD with the IAEA (IPSART mission) as well as with other external organisations, which were not involved in the elaboration of the reviewed document and probabilistic model of NPP. The review was made in accordance with the IAEA guidelines and methodical documents of UJD and US NRC. In the field of calculation safety analyses the UJD activity was focused on the analysis of an operational event, analyses of the selected accident scenarios

  10. Analysing the Wrongness of Killing

    DEFF Research Database (Denmark)

    Di Nucci, Ezio

    2014-01-01

    This article provides an in-depth analysis of the wrongness of killing by comparing different versions of three influential views: the traditional view that killing is always wrong; the liberal view that killing is wrong if and only if the victim does not want to be killed; and Don Marquis‟ future...... of value account of the wrongness of killing. In particular, I illustrate the advantages that a basic version of the liberal view and a basic version of the future of value account have over competing alternatives. Still, ultimately none of the views analysed here are satisfactory; but the different...

  11. Methodological challenges in carbohydrate analyses

    Directory of Open Access Journals (Sweden)

    Mary Beth Hall

    2007-07-01

    Full Text Available Carbohydrates can provide up to 80% of the dry matter in animal diets, yet their specific evaluation for research and diet formulation is only now becoming a focus in the animal sciences. Partitioning of dietary carbohydrates for nutritional purposes should reflect differences in digestion and fermentation characteristics and effects on animal performance. Key challenges to designating nutritionally important carbohydrate fractions include classifying the carbohydrates in terms of nutritional characteristics, and selecting analytical methods that describe the desired fraction. The relative lack of information on digestion characteristics of various carbohydrates and their interactions with other fractions in diets means that fractions will not soon be perfectly established. Developing a system of carbohydrate analysis that could be used across animal species could enhance the utility of analyses and amount of data we can obtain on dietary effects of carbohydrates. Based on quantities present in diets and apparent effects on animal performance, some nutritionally important classes of carbohydrates that may be valuable to measure include sugars, starch, fructans, insoluble fiber, and soluble fiber. Essential to selection of methods for these fractions is agreement on precisely what carbohydrates should be included in each. Each of these fractions has analyses that could potentially be used to measure them, but most of the available methods have weaknesses that must be evaluated to see if they are fatal and the assay is unusable, or if the assay still may be made workable. Factors we must consider as we seek to analyze carbohydrates to describe diets: Does the assay accurately measure the desired fraction? Is the assay for research, regulatory, or field use (affects considerations of acceptable costs and throughput? What are acceptable accuracy and variability of measures? Is the assay robust (enhances accuracy of values? For some carbohydrates, we

  12. Disposable soft 3 axis force sensor for biomedical applications.

    Science.gov (United States)

    Chathuranga, Damith Suresh; Zhongkui Wang; Yohan Noh; Nanayakkara, Thrishantha; Hirai, Shinichi

    2015-08-01

    This paper proposes a new disposable soft 3D force sensor that can be used to calculate either force or displacement and vibrations. It uses three Hall Effect sensors orthogonally placed around a cylindrical beam made of silicon rubber. A niobium permanent magnet is inside the silicon. When a force is applied to the end of the cylinder, it is compressed and bent to the opposite side of the force displacing the magnet. This displacement causes change in the magnetic flux around the ratiomatric linear sensors (Hall Effect sensors). By analysing these changes, we calculate the force or displacement in three directions using a lookup table. This sensor can be used in minimal invasive surgery and haptic feedback applications. The cheap construction, bio-compatibility and ease of miniaturization are few advantages of this sensor. The sensor design, and its characterization are presented in this work.

  13. Direct Cytoskeleton Forces Cause Membrane Softening in Red Blood Cells

    Science.gov (United States)

    Rodríguez-García, Ruddi; López-Montero, Iván; Mell, Michael; Egea, Gustavo; Gov, Nir S.; Monroy, Francisco

    2015-01-01

    Erythrocytes are flexible cells specialized in the systemic transport of oxygen in vertebrates. This physiological function is connected to their outstanding ability to deform in passing through narrow capillaries. In recent years, there has been an influx of experimental evidence of enhanced cell-shape fluctuations related to metabolically driven activity of the erythroid membrane skeleton. However, no direct observation of the active cytoskeleton forces has yet been reported to our knowledge. Here, we show experimental evidence of the presence of temporally correlated forces superposed over the thermal fluctuations of the erythrocyte membrane. These forces are ATP-dependent and drive enhanced flickering motions in human erythrocytes. Theoretical analyses provide support for a direct force exerted on the membrane by the cytoskeleton nodes as pulses of well-defined average duration. In addition, such metabolically regulated active forces cause global membrane softening, a mechanical attribute related to the functional erythroid deformability. PMID:26083919

  14. Short-range fundamental forces

    International Nuclear Information System (INIS)

    Antoniadis, I.; Baessler, S.; Buchner, M.; Fedorov, V.V.; Hoedl, S.; Nesvizhevsky, V.V.; Pignol, G.; Protasov, K.V.; Lambrecht, A.; Reynaud, S.; Sobolev, Y.

    2010-01-01

    We consider theoretical motivations to search for extra short-range fundamental forces as well as experiments constraining their parameters. The forces could be of two types: 1) spin-independent forces; 2) spin-dependent axion-like forces. Different experimental techniques are sensitive in respective ranges of characteristic distances. The techniques include measurements of gravity at short distances, searches for extra interactions on top of the Casimir force, precision atomic and neutron experiments. We focus on neutron constraints, thus the range of characteristic distances considered here corresponds to the range accessible for neutron experiments

  15. CFD analyses in regulatory practice

    International Nuclear Information System (INIS)

    Bloemeling, F.; Pandazis, P.; Schaffrath, A.

    2012-01-01

    Numerical software is used in nuclear regulatory procedures for many problems in the fields of neutron physics, structural mechanics, thermal hydraulics etc. Among other things, the software is employed in dimensioning and designing systems and components and in simulating transients and accidents. In nuclear technology, analyses of this kind must meet strict requirements. Computational Fluid Dynamics (CFD) codes were developed for computing multidimensional flow processes of the type occurring in reactor cooling systems or in containments. Extensive experience has been accumulated by now in selected single-phase flow phenomena. At the present time, there is a need for development and validation with respect to the simulation of multi-phase and multi-component flows. As insufficient input by the user can lead to faulty results, the validity of the results and an assessment of uncertainties are guaranteed only through consistent application of so-called Best Practice Guidelines. The authors present the possibilities now available to CFD analyses in nuclear regulatory practice. This includes a discussion of the fundamental requirements to be met by numerical software, especially the demands upon computational analysis made by nuclear rules and regulations. In conclusion, 2 examples are presented of applications of CFD analysis to nuclear problems: Determining deboration in the condenser reflux mode of operation, and protection of the reactor pressure vessel (RPV) against brittle failure. (orig.)

  16. Quantitative Methods for Analysing Joint Questionnaire Data: Exploring the Role of Joint in Force Design

    Science.gov (United States)

    2015-08-01

    and organisational sciences; organisational psychology and behavioural psychology disciplines; and systems sciences and network centric warfare. From...Kernot and Tim McKay Joint and Operations Analysis Division Defence Science and Technology Organisation DST-Group-TN-1474 ABSTRACT In...dimensional space comprising: Coordination and Organisation ; Social Capital; and Optimisation of the Socio-technical Systems. Given the variability of the

  17. Identifying Key Workplace Stressors Affecting Twentieth Air Force: Analyses Conducted from December 2012 Through February 2013

    Science.gov (United States)

    2014-01-01

    24-hour basis include nursing , air traffic control, manufacturing, police service, and fire protection. Many studies have shown that evening, night...of occupational injuries for a variety of jobs, including construction workers, nurses , miners, truck drivers, firefighters, and nuclear power plant...lish a strict schedule of AFS-specific focus group times in advance. We could not reschedule if the times proved inconvenient for participants

  18. Differential magnetic force microscope imaging.

    Science.gov (United States)

    Wang, Ying; Wang, Zuobin; Liu, Jinyun; Hou, Liwei

    2015-01-01

    This paper presents a method for differential magnetic force microscope imaging based on a two-pass scanning procedure to extract differential magnetic forces and eliminate or significantly reduce background forces with reversed tip magnetization. In the work, the difference of two scanned images with reversed tip magnetization was used to express the local magnetic forces. The magnetic sample was first scanned with a low lift distance between the MFM tip and the sample surface, and the magnetization direction of the probe was then changed after the first scan to perform the second scan. The differential magnetic force image was obtained through the subtraction of the two images from the two scans. The theoretical and experimental results have shown that the proposed method for differential magnetic force microscope imaging is able to reduce the effect of background or environment interference forces, and offers an improved image contrast and signal to noise ratio (SNR). © Wiley Periodicals, Inc.

  19. AS TECNOLOGIAS DE COMUNICAÇÃO DO SÉCULO XXI E O MEIO AMBIENTE: A UTILIZAÇÃO DOS SATÉLITES ORBITAIS COMO INSTRUMENTOS PROBATÓRIOS NA VIOLAÇÃO DO MEIO AMBIENTE

    OpenAIRE

    Souza, Alfeu de Arruda; Tybusch, Jerônimo Siqueira

    2013-01-01

    O Brasil é um país que apresenta uma das maiores coberturas vegetais e biodiversidade do planeta. Os recursos humanos por si só dos órgãos fiscalizadores  são insuficientes para gerenciar e fiscalizar um territorio que possui dimensões continentais e que constantemente tem sofrido com a degradação e destruição de sua fauna e flora. Assim, diante da realidade do século XXI os órgãos de fiscalizções do meio ambiente estão cada vez mais utilizando-se das tecnologias de informação e dos sistemas ...

  20. O PERFIL METODOLÓGICO DA PRODUÇÃO CIENTÍFICA EM ORÇAMENTO PÚBLICO: UMA ANÁLISE DO CENÁRIO BRASILEIRO NA PRIMEIRA DÉCADA DO SÉCULO XXI

    Directory of Open Access Journals (Sweden)

    Maurício Vasconcellos Leão Lyrio

    2013-04-01

    Full Text Available O presente estudo se insere no campo da administração pública e objetiva discutir o perfil metodológico dos estudos sobre orçamento público realizados no Brasil na primeira década do séc. XXI. Para tanto, no que se refere à metodologia, foi realizado um levantamento na base de dados SCIELO Brasil, utilizando-se de uma abordagem quantitativa, se configurando, do ponto de vista de abordagem do problema, em um estudo de caráter descritivo. Dentre os resultados encontrados, ficou evidenciado que os estudos sobre o tema se dão, principalmente, no setor público de forma geral, não se atendo a setores específicos de atividade. Foi evidenciada nos artigos encontrados no levantamento, uma abordagem quantitativa, tendo a econometria como principal método de pesquisa.

  1. Chin force in violin playing.

    Science.gov (United States)

    Obata, Satoshi; Kinoshita, Hiroshi

    2012-06-01

    Force generated between the left mandible of violinists and the chinrest of the violin was examined using a force-sensing chinrest developed in this study. A strain-gauge force sensor was built, and it was fixed between the violin's top plate and a chin cup. Fifteen professional/amateur violinists held the violin statically, played musical scales with different sound properties and sounding techniques, as well as an excerpt from a Max Bruch concerto. Peak and mean forces were evaluated for each task. In a separate experiment, lateral movement of the lower teeth due to different levels of voluntary chin force exertion was measured. Static holding forces observed were 15 and 22 N with and without the help of the left hand, respectively. Peak force increased from 16 N at soft dynamics to 20 N at strong dynamics during scales. The force further increased to 29 N with the use of vibrato technique and 35 N during shifts. Tempo and hand position did not affect the force. Playing a Bruch concerto induced a mean peak force of 52 N, ranging from 31 to 82 N among the violinists. The developed force-sensing chinrest could accurately record the generated chin force. Typical chin force to stabilize the violin during ordinary musical performance was less than 30 N, but it could momentarily exceed 50 N when technically demanding musical pieces were performed. The lateral shift of the mandible was fairly small (<0.4 mm) even with high chin-force exertion, possibly due to clenching of the molars.

  2. Geografia política da água e seus recursos de poder no início do século XXI

    Directory of Open Access Journals (Sweden)

    Fabrício Henricco Chagas Bastos

    2010-11-01

    Full Text Available

  1. Corrected direct force balance method for atomic force microscopy lateral force calibration

    International Nuclear Information System (INIS)

    Asay, David B.; Hsiao, Erik; Kim, Seong H.

    2009-01-01

    This paper reports corrections and improvements of the previously reported direct force balance method (DFBM) developed for lateral calibration of atomic force microscopy. The DFBM method employs the lateral force signal obtained during a force-distance measurement on a sloped surface and relates this signal to the applied load and the slope of the surface to determine the lateral calibration factor. In the original publication [Rev. Sci. Instrum. 77, 043903 (2006)], the tip-substrate contact was assumed to be pinned at the point of contact, i.e., no slip along the slope. In control experiments, the tip was found to slide along the slope during force-distance curve measurement. This paper presents the correct force balance for lateral force calibration.

  2. Automated force controller for amplitude modulation atomic force microscopy

    Energy Technology Data Exchange (ETDEWEB)

    Miyagi, Atsushi, E-mail: atsushi.miyagi@inserm.fr, E-mail: simon.scheuring@inserm.fr; Scheuring, Simon, E-mail: atsushi.miyagi@inserm.fr, E-mail: simon.scheuring@inserm.fr [U1006 INSERM, Université Aix-Marseille, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13009 Marseille (France)

    2016-05-15

    Atomic Force Microscopy (AFM) is widely used in physics, chemistry, and biology to analyze the topography of a sample at nanometer resolution. Controlling precisely the force applied by the AFM tip to the sample is a prerequisite for faithful and reproducible imaging. In amplitude modulation (oscillating) mode AFM, the applied force depends on the free and the setpoint amplitudes of the cantilever oscillation. Therefore, for keeping the applied force constant, not only the setpoint amplitude but also the free amplitude must be kept constant. While the AFM user defines the setpoint amplitude, the free amplitude is typically subject to uncontrollable drift, and hence, unfortunately, the real applied force is permanently drifting during an experiment. This is particularly harmful in biological sciences where increased force destroys the soft biological matter. Here, we have developed a strategy and an electronic circuit that analyzes permanently the free amplitude of oscillation and readjusts the excitation to maintain the free amplitude constant. As a consequence, the real applied force is permanently and automatically controlled with picoNewton precision. With this circuit associated to a high-speed AFM, we illustrate the power of the development through imaging over long-duration and at various forces. The development is applicable for all AFMs and will widen the applicability of AFM to a larger range of samples and to a larger range of (non-specialist) users. Furthermore, from controlled force imaging experiments, the interaction strength between biomolecules can be analyzed.

  3. Effects of bruxism on the maximum bite force

    Directory of Open Access Journals (Sweden)

    Todić Jelena T.

    2017-01-01

    Full Text Available Background/Aim. Bruxism is a parafunctional activity of the masticatory system, which is characterized by clenching or grinding of teeth. The purpose of this study was to determine whether the presence of bruxism has impact on maximum bite force, with particular reference to the potential impact of gender on bite force values. Methods. This study included two groups of subjects: without and with bruxism. The presence of bruxism in the subjects was registered using a specific clinical questionnaire on bruxism and physical examination. The subjects from both groups were submitted to the procedure of measuring the maximum bite pressure and occlusal contact area using a single-sheet pressure-sensitive films (Fuji Prescale MS and HS Film. Maximal bite force was obtained by multiplying maximal bite pressure and occlusal contact area values. Results. The average values of maximal bite force were significantly higher in the subjects with bruxism compared to those without bruxism (p 0.01. Maximal bite force was significantly higher in the males compared to the females in all segments of the research. Conclusion. The presence of bruxism influences the increase in the maximum bite force as shown in this study. Gender is a significant determinant of bite force. Registration of maximum bite force can be used in diagnosing and analysing pathophysiological events during bruxism.

  4. Forcing scheme in pseudopotential lattice Boltzmann model for multiphase flows.

    Science.gov (United States)

    Li, Q; Luo, K H; Li, X J

    2012-07-01

    The pseudopotential lattice Boltzmann (LB) model is a widely used multiphase model in the LB community. In this model, an interaction force, which is usually implemented via a forcing scheme, is employed to mimic the molecular interactions that cause phase segregation. The forcing scheme is therefore expected to play an important role in the pseudoepotential LB model. In this paper, we aim to address some key issues about forcing schemes in the pseudopotential LB model. First, theoretical and numerical analyses will be made for Shan-Chen's forcing scheme [Shan and Chen, Phys. Rev. E 47, 1815 (1993)] and the exact-difference-method forcing scheme [Kupershtokh et al., Comput. Math. Appl. 58, 965 (2009)]. The nature of these two schemes and their recovered macroscopic equations will be shown. Second, through a theoretical analysis, we will reveal the physics behind the phenomenon that different forcing schemes exhibit different performances in the pseudopotential LB model. Moreover, based on the analysis, we will present an improved forcing scheme and numerically demonstrate that the improved scheme can be treated as an alternative approach to achieving thermodynamic consistency in the pseudopotential LB model.

  5. Making Invisible Forces Visible

    DEFF Research Database (Denmark)

    Ratner, Helene Gad

    2013-01-01

    This paper investigates managerial tactics of visualisation when a need to know and manage employees' values and attitudes is expressed. Using the Danish public school as a case study, we explore how school managers use teachers' emotions to render visible presumably invisible information about...... their 'true' attitudes and values. The paper draws on theories of affect as well as actor-network theory to analyse three incidents where managers turn their interpretations of teachers' emotions into such information. These incidents suggest that the efforts to render employees' attitudes and values visible...

  6. Making Invisible Forces Visible

    DEFF Research Database (Denmark)

    Ratner, Helene Gad

    2013-01-01

    their 'true' attitudes and values. The paper draws on theories of affect as well as actor-network theory to analyse three incidents where managers turn their interpretations of teachers' emotions into such information. These incidents suggest that the efforts to render employees' attitudes and values visible...... install a normative emotional scale where an ideal employee displays emotional investment and self-control. This has implications, not only for employees who are expected to exhibit the 'right' emotions, but also for management, which comes to depend on transient emotions and co-presence in situations...

  7. Quadriceps force and anterior tibial force occur obviously later than vertical ground reaction force: a simulation study

    OpenAIRE

    Ueno, Ryo; Ishida, Tomoya; Yamanaka, Masanori; Taniguchi, Shohei; Ikuta, Ryohei; Samukawa, Mina; Saito, Hiroshi; Tohyama, Harukazu

    2017-01-01

    Background: Although it is well known that quadriceps force generates anterior tibial force, it has been unclear whether quadriceps force causes great anterior tibial force during the early phase of a landing task. The purpose of the present study was to examine whether the quadriceps force induced great anterior tibial force during the early phase of a landing task. Methods: Fourteen young, healthy, female subjects performed a single-leg landing task. Muscle force and anterior tibial force w...

  8. Enhanced intermolecular forces in supramolecular polymer nanocomposites

    Directory of Open Access Journals (Sweden)

    F. Lin

    2017-09-01

    Full Text Available Ureido-pyrimidone (Upy can dimerize in a self-complementary array of quadruple hydrogen bonds. In this paper, supramolecular polymer composites were prepared by blending Upy functionalized nanosilica with Upy end-capped polycarbonatediol. Surface characteristics of Upy functionalized nanosilica and influences of supramolecular forces on interfacial binding were researched. Fourier transform infrared spectroscopy (FTIR, Nuclear magnetic resonance (NMR and Gel permeation chromatography (GPC were used to characterize the synthesized molecules. Grafting ratio of Upy segments on the surface of nanosilica was analysed by Thermogravimetic analysis (TGA. Hydrophobicity and morphology of Upy modified nanosilica were analysed by Contact angle tester and Scanning electron microscope (SEM. Furthermore, dynamic thermo mechanical properties, mechanical properties and distribution of nanosilica in supramolecular polymer composites were also researched. Compared with the matrix resin, tensile stress and young's modulus of supramolecular polymer composites containing 5 wt% modified nanosilica were increased by 292 and 198% respectively.

  9. MEMS Bragg grating force sensor

    DEFF Research Database (Denmark)

    Reck, Kasper; Thomsen, Erik Vilain; Hansen, Ole

    2011-01-01

    We present modeling, design, fabrication and characterization of a new type of all-optical frequency modulated MEMS force sensor based on a mechanically amplified double clamped waveguide beam structure with integrated Bragg grating. The sensor is ideally suited for force measurements in harsh...... environments and for remote and distributed sensing and has a measured sensitivity of -14 nm/N, which is several times higher than what is obtained in conventional fiber Bragg grating force sensors. © 2011 Optical Society of America....

  10. Gravity as Quantum Entanglement Force

    OpenAIRE

    Lee, Jae-Weon; Kim, Hyeong-Chan; Lee, Jungjai

    2010-01-01

    We conjecture that the total quantum entanglement of matter and vacuum in the universe tends to increase with time, like entropy, and that an effective force is associated with this tendency. We also suggest that gravity and dark energy are types of quantum entanglement forces, similar to Verlinde's entropic force, and give holographic dark energy with an equation of state comparable to current observational data. This connection between quantum entanglement and gravity could give some new in...

  11. Proteins analysed as virtual knots

    Science.gov (United States)

    Alexander, Keith; Taylor, Alexander J.; Dennis, Mark R.

    2017-02-01

    Long, flexible physical filaments are naturally tangled and knotted, from macroscopic string down to long-chain molecules. The existence of knotting in a filament naturally affects its configuration and properties, and may be very stable or disappear rapidly under manipulation and interaction. Knotting has been previously identified in protein backbone chains, for which these mechanical constraints are of fundamental importance to their molecular functionality, despite their being open curves in which the knots are not mathematically well defined; knotting can only be identified by closing the termini of the chain somehow. We introduce a new method for resolving knotting in open curves using virtual knots, which are a wider class of topological objects that do not require a classical closure and so naturally capture the topological ambiguity inherent in open curves. We describe the results of analysing proteins in the Protein Data Bank by this new scheme, recovering and extending previous knotting results, and identifying topological interest in some new cases. The statistics of virtual knots in protein chains are compared with those of open random walks and Hamiltonian subchains on cubic lattices, identifying a regime of open curves in which the virtual knotting description is likely to be important.

  12. Digital image analyser for autoradiography

    International Nuclear Information System (INIS)

    Muth, R.A.; Plotnick, J.

    1985-01-01

    The most critical parameter in quantitative autoradiography for assay of tissue concentrations of tracers is the ability to obtain precise and accurate measurements of optical density of the images. Existing high precision systems for image analysis, rotating drum densitometers, are expensive, suffer from mechanical problems and are slow. More moderately priced and reliable video camera based systems are available, but their outputs generally do not have the uniformity and stability necessary for high resolution quantitative autoradiography. The authors have designed and constructed an image analyser optimized for quantitative single and multiple tracer autoradiography which the authors refer to as a memory-mapped charged-coupled device scanner (MM-CCD). The input is from a linear array of CCD's which is used to optically scan the autoradiograph. Images are digitized into 512 x 512 picture elements with 256 gray levels and the data is stored in buffer video memory in less than two seconds. Images can then be transferred to RAM memory by direct memory-mapping for further processing. Arterial blood curve data and optical density-calibrated standards data can be entered and the optical density images can be converted automatically to tracer concentration or functional images. In double tracer studies, images produced from both exposures can be stored and processed in RAM to yield ''pure'' individual tracer concentration or functional images. Any processed image can be transmitted back to the buffer memory to be viewed on a monitor and processed for region of interest analysis

  13. Forces of nature

    CERN Document Server

    AUTHOR|(CDS)2072602

    2016-01-01

    A breathtaking and beautiful exploration of our planet. This groundbreaking book, which accompanies the new BBC1 TV series, provides the deepest answers to the simplest questions. 'Why is the sky blue?' 'Why is the Earth round?' 'Why is every snowflake unique?' To answer these and many other questions, Professor Brian Cox will reveal some of the most extraordinary phenomena and events on Earth and in the Universe and beyond. From the immensity of Earth's globe to all the world's myriad snowflakes, the forces of nature shape everything we see. Pushed to extremes, the results are astonishing. From the realm of auroras to the heart of our planet, the ingredients that make everything on Earth connect each one of us in an eternal cycle of life. Brian will reveal why Earth is the most colourful world we know, exploring the white light of the sun as it travels through the darkness of space until it hits Earth's atmosphere where it begins a new journey, splitting into a rainbow of colours. From the great plains of th...

  14. Blocking of Brute Force Attack

    OpenAIRE

    M.Venkata Krishna Reddy

    2012-01-01

    A common threat Web developers face is a password-guessing attack known as a brute-force attack. A brute-force attack is an attempt to discover a password by systematically trying every possible combination of letters, numbers, and symbols until you discover the one correct combination that works. If your Web site requires user authentication, you are a good target for a brute-force attack. An attacker can always discover a password through a brute-force attack, but the downside is that it co...

  15. Wind Forces on Container Ships

    DEFF Research Database (Denmark)

    Andersen, Ingrid Marie Vincent

    2012-01-01

    An investigation of the wind forces acting on a 9,000+ TEU container ship has been carried out through a series of wind tunnel tests. It was investigated how the wind forces depend on the container configuration on the deck using a 1:450 scale model and a series of appropriate container...... are presented as nondimensional coefficients. It is concluded, that the measured forces and moment depend on the container configuration on deck, and the results may provide a general idea of how the magnitude of the wind forces is affected by a given container stacking configuration on a similar container ship....

  16. Force As A Momentum Current

    International Nuclear Information System (INIS)

    Munera, Hector A.

    2010-01-01

    Advantages of a neo-Cartesian approach to classical mechanics are noted. If conservation of linear momentum is the fundamental principle, Newton's three laws become theorems. A minor paradox in static Newtonian mechanics is identified, and solved by reinterpreting force as a current of momentum. Contact force plays the role of a mere midwife in the exchange of momentum; however, force cannot be eliminated from physics because it provides the numerical value for momentum current. In this sense, in a neo-Cartesian formulation of mechanics the concept of force becomes strengthened rather than weakened.

  17. Curvature force and dark energy

    International Nuclear Information System (INIS)

    Balakin, Alexander B; Pavon, Diego; Schwarz, Dominik J; Zimdahl, Winfried

    2003-01-01

    A curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant or other forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter can be traced back to the action of an effective curvature force on the gas particles. This force self-consistently reacts back on the cosmological dynamics. The links between an imperfect fluid description, a kinetic description with effective antifriction forces and curvature forces, which represent a non-minimal coupling of gravity to matter, are established

  18. Magnetic Resonance Force Microscopy System

    Data.gov (United States)

    Federal Laboratory Consortium — The Magnetic Resonance Force Microscopy (MRFM) system, developed by ARL, is the world's most sensitive nuclear magnetic resonance (NMR) spectroscopic analysis tool,...

  19. Force generation by titin folding.

    Science.gov (United States)

    Mártonfalvi, Zsolt; Bianco, Pasquale; Naftz, Katalin; Ferenczy, György G; Kellermayer, Miklós

    2017-07-01

    Titin is a giant protein that provides elasticity to muscle. As the sarcomere is stretched, titin extends hierarchically according to the mechanics of its segments. Whether titin's globular domains unfold during this process and how such unfolded domains might contribute to muscle contractility are strongly debated. To explore the force-dependent folding mechanisms, here we manipulated skeletal-muscle titin molecules with high-resolution optical tweezers. In force-clamp mode, after quenching the force (force trace contained rapid fluctuations and a gradual increase of average force, indicating that titin can develop force via dynamic transitions between its structural states en route to the native conformation. In 4 M urea, which destabilizes H-bonds hence the consolidated native domain structure, the net force increase disappeared but the fluctuations persisted. Thus, whereas net force generation is caused by the ensemble folding of the elastically-coupled domains, force fluctuations arise due to a dynamic equilibrium between unfolded and molten-globule states. Monte-Carlo simulations incorporating a compact molten-globule intermediate in the folding landscape recovered all features of our nanomechanics results. The ensemble molten-globule dynamics delivers significant added contractility that may assist sarcomere mechanics, and it may reduce the dissipative energy loss associated with titin unfolding/refolding during muscle contraction/relaxation cycles. © 2017 The Protein Society.

  20. Transforming Norwegian Special Operation Forces

    National Research Council Canada - National Science Library

    Robertsen, Tom A

    2006-01-01

    This paper explores the transformation of Norwegian Special Operation Forces (NORSOF), raising the hypothesis that its current organizational structure is inconsistent with its future roles and missions...