WorldWideScience

Sample records for intrastent difusa predictores

  1. Stents liberadores de droga en el tratamiento de la reestenosis intrastent difusa:predictores clínicos y angiográficos de eventos

    Directory of Open Access Journals (Sweden)

    Jorge Leguizamón

    2009-01-01

    Full Text Available RESUMENIntroducciónEl tratamiento de la reestenosis intrastent (RIS difusa con balón, stent o aterectomía tieneuna tasa alta de recurrencia (~35-80%. Por ello, los stents liberadores de droga (SLDconstituyen la primera elección para su tratamiento. Sin embargo, hay escasa informaciónsobre predictores de eventos a largo plazo.ObjetivoEvaluar la relación entre las variables clínicas y angiográficas con la ocurrencia de eventosalejados en el tratamiento de las RIS difusas con SLD en una población no seleccionada.Material y métodosEntre enero de 2004 y julio de 2008, 110 pacientes consecutivos con 125 lesiones por RISdifusa recibieron el implante de 137 SLD. Se utilizaron solamente SLD disponibles en elmercado (Cypher® 40,0%, Taxus® 51,8% y Endeavor® 9,1%. Durante el seguimiento seevaluó la incidencia de muerte, infarto agudo de miocardio o reintervención. La influenciade las variables clínicas, angiográficas y del procedimiento sobre dichos eventos se analizóen un modelo de regresión logística.ResultadosSe logró tratar con éxito todas las lesiones. La incidencia de eventos al mes fue del 3,6% (IC95% 1,2-8,5%. Hubo una muerte y cuatro pacientes requirieron reintervención, dos deellos por trombosis del stent.El seguimiento medio fue de 18 meses. No hubo casos de trombosis definida del stent. Trespacientes fallecieron (dos luego de una cirugía de revascularización miocárdica y otro demuerte súbita. Diez pacientes requirieron reintervención de la lesión responsable (9,1%,cinco de los cuales fueron tratados en forma percutánea.La incidencia global de eventos clínicos adversos fue del 13,6% (IC 95% 8,1-21,0%. En elanálisis multivariado, la diabetes insulinodependiente (OR 6,44, p = 0,02, la enfermedadde múltiples vasos (OR 5,78, p = 0,02 y el tipo de RIS según Mehran (OR 2,74, p = 0,04fueron predictores independientes de eventos. La insuficiencia renal crónica y el tratamientode obstrucciones en puentes venosos

  2. Hemangiomatosis neonatal difusa e insuficiencia cardiaca congestiva

    OpenAIRE

    Charles Augusto Huamaní Saldaña; Violeta López-Naváez; Eloy Saravia-Sandoval

    2007-01-01

    La hemangiomatosis neonatal difusa es un trastorno raro que consiste en la aparición de múltiples hemangiomas que comprometen; piel y vísceras como hígado, intestinos o el sistema nervioso central, pudiendo llegar a causar una insuficiencia cardiaca congestiva; entre otras complicaciones. Presentamos el caso de una niña de tres meses con angiomas múltiples en la piel e hígado, asociados con; cardiomegalia y dificultad respiratoria; con diagnóstico de insuficiencia cardiaca congestiva...

  3. 77 FR 56837 - Enterprise Intrastate LLC; Notice of Filing

    Science.gov (United States)

    2012-09-14

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. PR12-34-000] Enterprise Intrastate LLC; Notice of Filing Take notice that on September 6, 2012, Enterprise Intrastate LLC (Enterprise.... Enterprise Intrastate is revising its SOC to replace all references to ``Enterprise Intrastate L.P.'' with...

  4. 75 FR 65467 - Enterprise Alabama Intrastate, LLC; Enterprise Intrastate L.P; Notice of Baseline Filings

    Science.gov (United States)

    2010-10-25

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. PR11-4-000; Docket No. PR11-5-000; Not Consolidated] Enterprise Alabama Intrastate, LLC; Enterprise Intrastate L.P; Notice of Baseline Filings October 18, 2010. Take notice that on October 15, 2010, the applicants listed above...

  5. Inclusiones diferenciales, matemática difusa y aplicaciones

    OpenAIRE

    Fernández Cara, Enrique; Rojas Medar, Marko Antonio; Viera Brandao, Adilson José

    2003-01-01

    En este trabajo diremos cómo se pueden modelar ciertos sistemas tomados de la realidad que usan conceptos propios de la Matemática Difusa (conjuntos, multifunciones e inclusiones diferenciales “fuzzy”). Consideraremos problemas de valor inicial para inclusiones diferenciales “fuzzy” y analizaremos la existencia de solución local. También nos referiremos a la estabilidad de los puntos de equilibrio de las inclusiones diferenciales “fuzzy”. Finalmente, mostraremos algunas apli...

  6. 40 CFR 81.36 - Maricopa Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.36 Maricopa Intrastate Air Quality Control Region. The Phoenix-Tucson Intrastate Air Quality Control Region has been renamed the Maricopa Intrastate Air Quality Control Region... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Maricopa Intrastate Air Quality...

  7. 40 CFR 81.88 - Billings Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.88 Billings Intrastate Air Quality Control Region. The Metropolitan Billings Intrastate Air Quality Control Region (Montana) has been renamed the Billings Intrastate Air Quality Control... to by Montana authorities as follows: Sec. 481.168Great Falls Intrastate Air Quality Control Region...

  8. 45 CFR 1321.37 - Intrastate funding formula.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Intrastate funding formula. 1321.37 Section 1321.37 Public Welfare Regulations Relating to Public Welfare (Continued) OFFICE OF HUMAN DEVELOPMENT... GRANTS TO STATE AND COMMUNITY PROGRAMS ON AGING State Agency Responsibilities § 1321.37 Intrastate...

  9. 21 CFR 1240.62 - Turtles intrastate and interstate requirements.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Turtles intrastate and interstate requirements....62 Turtles intrastate and interstate requirements. (a) Definition. As used in this section the term “turtles” includes all animals commonly known as turtles, tortoises, terrapins, and all other animals of...

  10. Programación lineal flexible con restricciones difusas

    OpenAIRE

    López Ospina, Héctor Andrés; Restrepo López, Mauricio

    2010-01-01

    El presente trabajo tiene como objetivo presentar los conceptos básicos de la programación lineal flexible o progre-mación lineal con restricciones difusas. Dado que la literatura presenta dicha metodología para restricciones de de-sigualdad, se formula una metodología para restricciones de igualdad y de caja. Se muestra cómo un problema de este tipo equivale a uno de optimización paramétrica. Finalmente, se presentan dos ejemplos ilustrativos en los cua-les se muestra la ventaja de la metodo...

  11. LA LÓGICA DIFUSA COMPENSATORIA / THE COMPENSATORY FUZZY LOGIC

    Directory of Open Access Journals (Sweden)

    Jesús Cejas-Montero

    2011-06-01

    Full Text Available

    La Lógica Difusa Compensatoria es un modelo lógico que permite la modelación simultánea de los procesos deductivos y de toma de decisiones. Sus características más importantes son: la flexibilidad, la tolerancia con la imprecisión, la capacidad para moldear problemas no-lineales y su fundamento en el lenguaje de sentido común. El artículo pretende llevar a la comunidad académico-empresarial las ideas fundamentales de la Lógica Difusa Compensatoria, ilustrándola en sus posibles campos de aplicación para lograr la competitividad de una organización.

    Abstract

    The Compensatory Fuzzy Logic is a logical model that allows the simultaneous modeling of the deductive and decision-making processes. The most important characteristics of Compensatory Fuzzy Logic are: the flexibility, the tolerance with the inaccuracy, the capacity to model no-lineal problems and its foundation in the language of common sense. The article seeks to bring the basic ideas of the Compensatory Fuzzy Logic to the academic–managerial community, illustrating it in its possible fields of application, in order to achieve the competitiveness of an organization.

  12. Metodología de la lógica difusa

    OpenAIRE

    Universidad del Rosario, Facultad de Administración; Mendoza Saboya, Liliana Adriana

    2009-01-01

    Este trabajo es un acercamiento a los elementos de la lógica difusa y su aplicación en el ámbito social. Para tal efecto se retoman los conceptos de: función de pertenencia, conjuntos difusos, operaciones entre conjuntos difusos y sus relaciones difusas, y operaciones entre relaciones difusas. Cada una de las exposiciones tiene asociado un ejemplo recogido de la experiencia lograda con el trabajo sobre una muestra de 318 empresas. Bajo esta estructura se desarrolla la aplica...

  13. 75 FR 29404 - Contract Reporting Requirements of Intrastate Natural Gas Companies

    Science.gov (United States)

    2010-05-26

    ... Analysis 109 X. Regulatory Flexibility Act 110 XI. Document Availability 112 XII. Effective Date and... less stringent transactional reporting requirements for NGPA section 311 intrastate pipelines and... transactional reporting requirements for intrastate and Hinshaw pipelines in order to increase market...

  14. 40 CFR 81.111 - Georgetown Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.111 Georgetown Intrastate Air Quality Control Region. The Georgetown Intrastate Air Quality Control Region (South Carolina) consists of the territorial area encompassed by the... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Georgetown Intrastate Air Quality...

  15. 40 CFR 81.95 - Central Florida Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.95 Central Florida Intrastate Air Quality Control Region. The Central Florida Intrastate Air Quality Control Region consists of the territorial area encompassed by the boundaries of the... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Central Florida Intrastate Air Quality...

  16. 40 CFR 81.112 - Charleston Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.112 Charleston Intrastate Air Quality Control Region. The Charleston Intrastate Air Quality Control Region (South Carolina) consists of the territorial area encompassed by the... Quality Control Region: Region 1. 81.107Greenwood Intrastate Air Quality Control Region: Region 2. 81...

  17. 40 CFR 81.110 - Camden-Sumter Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.110 Camden-Sumter Intrastate Air Quality Control Region. The Camden-Sumter Intrastate Air Quality Control Region (South Carolina) consists of the territorial area encompassed by the... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Camden-Sumter Intrastate Air Quality...

  18. 40 CFR 81.107 - Greenwood Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.107 Greenwood Intrastate Air Quality Control Region. The Greenwood Intrastate Air Quality Control Region (South Carolina) consists of the territorial area encompassed by the... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Greenwood Intrastate Air Quality...

  19. 40 CFR 81.54 - Cook Inlet Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.54 Cook Inlet Intrastate Air Quality Control Region. The Cook Inlet Intrastate Air Quality Control Region (Alaska) consists of the territorial area encompassed by the boundaries... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Cook Inlet Intrastate Air Quality...

  20. 40 CFR 81.47 - Central Oklahoma Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.47 Section 81.47 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.47 Central Oklahoma Intrastate Air Quality Control Region. The Metropolitan Oklahoma Intrastate Air Quality Control Region has been renamed the Central Oklahoma Intrastate...

  1. 40 CFR 81.52 - Wasatch Front Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.52 Wasatch Front Intrastate Air Quality Control Region. The Wasatch Front Intrastate Air Quality Control Region (Utah) consists of the territorial area encompassed by the boundaries... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Wasatch Front Intrastate Air Quality...

  2. 40 CFR 81.108 - Columbia Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.108 Columbia Intrastate Air Quality Control Region. The Columbia Intrastate Air Quality Control Region (South Carolina) consists of the territorial area encompassed by the... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Columbia Intrastate Air Quality...

  3. 40 CFR 81.32 - Puget Sound Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.32 Puget Sound Intrastate Air Quality Control Region. The Puget Sound Intrastate Air Quality Control Region (Washington) consists of the territorial area encompassed by the... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Puget Sound Intrastate Air Quality...

  4. 40 CFR 81.109 - Florence Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.109 Florence Intrastate Air Quality Control Region. The Florence Intrastate Air Quality Control Region (South Carolina) consists of the territorial area encompassed by the... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Florence Intrastate Air Quality...

  5. 40 CFR 81.80 - Las Vegas Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.80 Las Vegas Intrastate Air Quality Control Region. The Las Vegas Intrastate Air Quality Control Region (Nevada) has been revised to consist of the territorial area encompassed by... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Las Vegas Intrastate Air Quality...

  6. 40 CFR 81.79 - Northeastern Oklahoma Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.79 Section 81.79 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.79 Northeastern Oklahoma Intrastate Air Quality Control Region. The Metropolitan Tulsa Intrastate Air Quality Control Region has been renamed the Northeastern Oklahoma Intrastate...

  7. 40 CFR 81.136 - Corpus Christi-Victoria Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Corpus Christi-Victoria Intrastate Air... Air Quality Control Regions § 81.136 Corpus Christi-Victoria Intrastate Air Quality Control Region. The Corpus Christi-Victoria Intrastate Air Quality Control Region (Texas) consists of the territorial...

  8. Aspectos imunológicos da Leishmaniose Cutis Difusa

    Directory of Open Access Journals (Sweden)

    Aloysio Argollo

    1977-06-01

    Full Text Available Um caso de Leishmaniose Cutis Difusa é estudado quanto aos seus aspectos imunológicos. A imunidade celular foi investigada com testes intradérmicos, sensibilização artificia! do DNCB e dosagem de fator de inibição do macrófago (MIF. Embora alguns antígenos injetados tivessem dado reação positiva, a leishmanina foi não reatora evidenciando uma anergia específica. As imunoglobulinas G e M estavam elevadas. 0 encontro de anticorpos circulantes por alguns autores associando ao fato de que o complemento C3 era baixo em nosso paciente, levou-nos a considerar o consumo deste que fixado a complexos Ag-Ac circulantes poderiam explicar os surtos de febre e artralgias. Por fim são considerados os pontos de vista de autores diferentes em relação ao fato de que a LCD seria causada por espécie diferente de leishmânia, ou por defeito imunológico do paciente, destacando-se o trabalho de Convit³ em favor desta útlima hipótese.

  9. 78 FR 44915 - Turtles Intrastate and Interstate Requirements

    Science.gov (United States)

    2013-07-25

    .... FDA-2013-N-0639] Turtles Intrastate and Interstate Requirements AGENCY: Food and Drug Administration... turtle eggs and live turtles with a carapace length of less than 4 inches to remove procedures for... viable turtle eggs and turtles with a carapace length of less than 4 inches to stop the spread of turtle...

  10. 78 FR 63872 - Turtles Intrastate and Interstate Requirements

    Science.gov (United States)

    2013-10-25

    ... DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration 21 CFR Part 1240 [Docket No. FDA-2013-N-0639] Turtles Intrastate and Interstate Requirements Correction In rule document 2013-17751 appearing on pages 44878-44881 in the issue of July 25, 2013, make the following correction: On page 44879...

  11. 78 FR 44878 - Turtles Intrastate and Interstate Requirements

    Science.gov (United States)

    2013-07-25

    .... FDA-2013-N-0639] Turtles Intrastate and Interstate Requirements AGENCY: Food and Drug Administration... turtle eggs and live turtles with a carapace length of less than 4 inches to remove procedures for... 21 CFR 1240.62 on May 23, 1975 (40 FR 22543), that ban the sale and distribution of viable turtle...

  12. Modelos de lógica difusa para descrever o efeito de fármacos

    OpenAIRE

    Nunes, Catarina S.

    2014-01-01

    Jornadas de Estatística e Computação, realizadas no CLA de Porto de Mós em 7 de maio de 2014 A lógica difusa tenta reproduzir o raciocínio humano utilizando graus de certeza. Nesta palestra será apresentado o conceito de lógica difusa e a sua implementação na modelação do efeito de fármacos anestésicos nos sinais vitais dos doentes submetidos a anestesia geral (sob cirurgia).

  13. Aspectos imunológicos da Leishmaniose Cutis Difusa

    Directory of Open Access Journals (Sweden)

    Aloysio Argollo

    1977-06-01

    Full Text Available Um caso de Leishmaniose Cutis Difusa é estudado quanto aos seus aspectos imunológicos. A imunidade celular foi investigada com testes intradérmicos, sensibilização artificia! do DNCB e dosagem de fator de inibição do macrófago (MIF. Embora alguns antígenos injetados tivessem dado reação positiva, a leishmanina foi não reatora evidenciando uma anergia específica. As imunoglobulinas G e M estavam elevadas. 0 encontro de anticorpos circulantes por alguns autores associando ao fato de que o complemento C3 era baixo em nosso paciente, levou-nos a considerar o consumo deste que fixado a complexos Ag-Ac circulantes poderiam explicar os surtos de febre e artralgias. Por fim são considerados os pontos de vista de autores diferentes em relação ao fato de que a LCD seria causada por espécie diferente de leishmânia, ou por defeito imunológico do paciente, destacando-se o trabalho de Convit³ em favor desta útlima hipótese.A case of Cutis Diffuse Leishmaniasis is studied in respect to its immuno logical aspects. Cell mediated immunity was investigated with a battery of nine intradermal antigens, using disposable 1.0 ml tuberculin syringes, with 25 guage oedles. Also, artificial sensibilization to the DNCB and dosage of the Macrophage Inhibiting Factor (MIF were carried out. Some of the intradermal tests were positive and the leishmanine reaction was negative showing specific anergy. The G and M immunoglobulines were elevated. Since circulating antibodies have been described in the literatura and our patient had tpe C³ complement at a low level we ponder about its consumption fixed to Ag-Ac complexes, which could explain the episodes of fever and arthralgias. Finally, the view points of different authors are considered in relation to the fact that CDL would be caused by a different species of leishumania, or by immunological defect of the host. Convit's reatons undoubtedly favors th is last hypothesis.

  14. Una aproximación a los conjuntos alcanzables de una inclusión diferencial difusa

    Directory of Open Access Journals (Sweden)

    William González-Calderón

    2012-01-01

    Full Text Available Se estudian los sistemas dinámicos difusos a partir de la noción de inclusión diferencial difusa introducida en [24]. Se analizan algunas técnicas utilizadas para resolver inclusiones diferenciales difusas asociadas a proble- mas de valor inicial, y se introduce una nueva forma de aproximación a los conjuntos alcanzables difusos, la cual permite resolver de manera más natural una inclusión diferencial difusa. .

  15. 40 CFR 81.99 - New Mexico Southern Border Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false New Mexico Southern Border Intrastate... Designation of Air Quality Control Regions § 81.99 New Mexico Southern Border Intrastate Air Quality Control Region. The Arizona-New Mexico Southern Border Interstate Air Quality Control Region has been renamed the...

  16. 40 CFR 81.38 - Metropolitan Houston-Galveston Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Metropolitan Houston-Galveston... Designation of Air Quality Control Regions § 81.38 Metropolitan Houston-Galveston Intrastate Air Quality Control Region. The Metropolitan Houston-Galveston Intrastate Air Quality Control Region (Texas) has been...

  17. 40 CFR 81.184 - Northwestern Connecticut Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Northwestern Connecticut Intrastate Air Quality Control Region. 81.184 Section 81.184 Protection of Environment ENVIRONMENTAL PROTECTION... Designation of Air Quality Control Regions § 81.184 Northwestern Connecticut Intrastate Air Quality Control...

  18. 40 CFR 81.40 - Metropolitan San Antonio Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Metropolitan San Antonio Intrastate Air Quality Control Region. 81.40 Section 81.40 Protection of Environment ENVIRONMENTAL PROTECTION... Designation of Air Quality Control Regions § 81.40 Metropolitan San Antonio Intrastate Air Quality Control...

  19. 40 CFR 81.120 - Middle Tennessee Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Middle Tennessee Intrastate Air Quality Control Region. 81.120 Section 81.120 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.120 Middle Tennessee Intrastate Air Quality Control Region. The...

  20. 40 CFR 81.93 - Hampton Roads Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Hampton Roads Intrastate Air Quality... Quality Control Regions § 81.93 Hampton Roads Intrastate Air Quality Control Region. The Metropolitan... Wight, James City, Nansemond, Southampton, York. Cities—Chesapeake, Franklin, Hampton, Newport News...

  1. 40 CFR 81.87 - Metropolitan Boise Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.87 Section 81.87 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.87 Metropolitan Boise Intrastate Air Quality Control Region. The Metropolitan Boise Intrastate Air Quality Control Region (Idaho) consists of the territorial area encompassed...

  2. 40 CFR 81.116 - Northern Missouri Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.116 Section 81.116 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.116 Northern Missouri Intrastate Air Quality Control Region. The Northern Missouri Intrastate Air Quality Control Region consists of the territorial area encompassed by the...

  3. 40 CFR 81.49 - Southeast Florida Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.49 Section 81.49 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.49 Southeast Florida Intrastate Air Quality Control Region. The Southeast Florida Intrastate Air Quality Control Region is redesignated to consist of the territorial area...

  4. 40 CFR 81.123 - Southeastern Oklahoma Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.123 Section 81.123 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.123 Southeastern Oklahoma Intrastate Air Quality Control Region. The Southeastern Oklahoma Intrastate Air Quality Control Region consists of the territorial area encompassed by the...

  5. 40 CFR 81.122 - Mississippi Delta Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.122 Section 81.122 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.122 Mississippi Delta Intrastate Air Quality Control Region. The Mississippi Delta Intrastate Air Quality Control Region consists of the territorial area encompassed by the...

  6. 40 CFR 81.67 - Lake Michigan Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.67 Lake Michigan Intrastate Air Quality Control Region. The Menominee-Escanaba (Michigan)-Marinette (Wisconsin) Interstate Air Quality Control Region has been renamed the Lake Michigan Intrastate Air Quality Control Region (Wisconsin) and revised to consist of the territorial area...

  7. 40 CFR 81.78 - Metropolitan Portland Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.78 Section 81.78 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.78 Metropolitan Portland Intrastate Air Quality Control Region. The Metropolitan Portland Intrastate Air Quality Control Region (Maine) consists of the territorial area...

  8. 40 CFR 81.16 - Metropolitan Denver Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.16 Section 81.16 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.16 Metropolitan Denver Intrastate Air Quality Control Region. The Metropolitan Denver Intrastate Air Quality Control Region (Colorado) consists of the territorial area...

  9. 40 CFR 81.24 - Niagara Frontier Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.24 Section 81.24 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.24 Niagara Frontier Intrastate Air Quality Control Region. The Niagara Frontier Intrastate Air Quality Control Region (New York) consists of the territorial area...

  10. 40 CFR 81.104 - Central Pennsylvania Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.104 Section 81.104 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.104 Central Pennsylvania Intrastate Air Quality Control Region. The Central Pennsylvania Intrastate Air Quality Control Region consists of the territorial area encompassed by...

  11. 40 CFR 81.115 - Northwest Nevada Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.115 Section 81.115 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.115 Northwest Nevada Intrastate Air Quality Control Region. The Northwest Nevada Intrastate Air Quality Control Region consists of the territorial area encompassed by the...

  12. 40 CFR 81.23 - Southwest Pennsylvania Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.23 Section 81.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.23 Southwest Pennsylvania Intrastate Air Quality Control Region. The Southwest Pennsylvania Intrastate Air Quality Control Region is redesignated to consist of the territorial...

  13. 40 CFR 81.28 - Metropolitan Baltimore Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.28 Section 81.28 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.28 Metropolitan Baltimore Intrastate Air Quality Control Region. The Metropolitan Baltimore Intrastate Air Quality Control Region (Maryland) consists of the territorial area...

  14. 40 CFR 81.118 - Southwest Missouri Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.118 Section 81.118 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.118 Southwest Missouri Intrastate Air Quality Control Region. The Southwest Missouri Intrastate Air Quality Control Region consists of the territorial area encompassed by the...

  15. 40 CFR 81.41 - Metropolitan Birmingham Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.41 Section 81.41 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.41 Metropolitan Birmingham Intrastate Air Quality Control Region. The Metropolitan Birmingham Intrastate Air Quality Control Region (Alabama) has been revised to consist of the...

  16. 40 CFR 81.29 - Metropolitan Indianapolis Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Air Quality Control Region. 81.29 Section 81.29 Protection of Environment ENVIRONMENTAL PROTECTION... Designation of Air Quality Control Regions § 81.29 Metropolitan Indianapolis Intrastate Air Quality Control Region. The Metropolitan Indianapolis Intrastate Air Quality Control Region consists of the territorial...

  17. 40 CFR 81.45 - Metropolitan Atlanta Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.45 Section 81.45 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.45 Metropolitan Atlanta Intrastate Air Quality Control Region. The Metropolitan Atlanta Intrastate Air Quality Control Region (Georgia) has been revised to consist of the...

  18. 40 CFR 81.30 - Southeastern Wisconsin Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.30 Section 81.30 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.30 Southeastern Wisconsin Intrastate Air Quality Control Region. The Metropolitan Milwaukee Intrastate Air Quality Control Region (Wisconsin) has been renamed the Southeastern...

  19. 40 CFR 81.117 - Southeast Missouri Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.117 Section 81.117 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.117 Southeast Missouri Intrastate Air Quality Control Region. The Southeast Missouri Intrastate Air Quality Control Region consists of the territorial area encompassed by the...

  20. 40 CFR 81.19 - Metropolitan Boston Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.19 Section 81.19 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.19 Metropolitan Boston Intrastate Air Quality Control Region. The Metropolitan Boston Intrastate Air Quality Control Region (Massachusetts) consists of the territorial area...

  1. 40 CFR 81.119 - Western Tennessee Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.119 Section 81.119 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.119 Western Tennessee Intrastate Air Quality Control Region. The Western Tennessee Intrastate Air Quality Control Region consists of the territorial area encompassed by...

  2. 40 CFR 81.34 - Metropolitan Dayton Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.34 Section 81.34 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.34 Metropolitan Dayton Intrastate Air Quality Control Region. The Metropolitan Dayton Intrastate Air Quality Control Region consists of the territorial area encompassed by the...

  3. 40 CFR 81.106 - Greenville-Spartanburg Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.106 Section 81.106 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.106 Greenville-Spartanburg Intrastate Air Quality Control Region. The Greenville-Spartanburg Intrastate Air Quality Control Region (South Carolina) consists of the territorial...

  4. 40 CFR 81.89 - Metropolitan Cheyenne Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.89 Section 81.89 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.89 Metropolitan Cheyenne Intrastate Air Quality Control Region. The Metropolitan Cheyenne Intrastate Air Quality Control Region (Wyoming) consists of the territorial area...

  5. 40 CFR 81.97 - Southwest Florida Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Southwest Florida Intrastate Air Quality Control Region. 81.97 Section 81.97 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.97 Southwest Florida Intrastate Air Quality Control Region. The...

  6. La Lógica Difusa como herramienta de evaluación en el sector universitario

    OpenAIRE

    Arroyo, Boris Asdrúbal; Antolínez, Nancy Teresa

    2015-01-01

    Este artículo presenta los avances parciales de una investigación sobre la aplicación de la Lógica Difusa en la valoración actitudinal en estudiantes universitarios. Circunscrita en el Paradigma Mixto, utiliza la Teoría Fundamentada, grupos de discusión y entrevistas, además de técnicas, instrumentos y procedimientos difusos, para generar, desde la perspectiva de una muestra intencional de dieciséis profesores expertos de la Universidad Politécnica Territorial “José Félix Ribas”, en Barina...

  7. Argamassa Reforçada com Armadura Difusa de Aço

    Directory of Open Access Journals (Sweden)

    José Eduardo Fairbanks Nascimbeni

    1990-12-01

    Full Text Available Apresenta métodos de ensaio, resultados e conclusões de experimentos controlados em corpos de prova e peças de argamassa reforçada com fibras de aço, como armadura difusa, São abordadas considerações teóricas sobre as condições gerais de ruptura e sobre as interferências fibra/matriz. Concluiu-se haver viabilidade técnica no uso do compósito, quanto à resistência à flexão

  8. Calcificação encefálica difusa: registro de um caso

    Directory of Open Access Journals (Sweden)

    Ana L. Zuma de Rosso

    1992-12-01

    Full Text Available Os autores descrevem um caso de calcificação encefálica difusa primária, não-familial, cuja primeira manifestação foi disartria. Posteriormente, desenvolveu movimentos coreoatetósicos em mãos e face, discalculia e déficit de memória. A TC de crânio revelou calcificações em hemisférios cerebrais, cerebelo e tronco cerebral.

  9. Aplicación lógica difusa en valoración financiera de marcas

    OpenAIRE

    Camargo Moreno, Roberto

    2013-01-01

    Resumen: El uso de la lógica difusa en la valoración tiene como objetivo proporcionar las bases del razonamiento aproximado, que utiliza las premisas subjetivas como instrumento para calcular el valor de las marcas que es muy subjetivo por su componente intangible. La valoración de marcas es un ejemplo de aplicación en el que se hace necesario introducir esquemas matemáticos flexibles ofrecidos por la lógica difusa, de esa forma es más real el determinar el grado de ajuste de determinados ...

  10. Intrastate conflict in oil producing states: A threat to global oil supply?

    Energy Technology Data Exchange (ETDEWEB)

    Toft, Peter, E-mail: peter.toft@ec.europa.eu [Institute for Energy, Joint Research Centre of the European Commission, Westerduinweg 3, 1755 ZG Petten (Netherlands)

    2011-11-15

    In this paper I investigate how often and how much outbreaks of intrastate conflict in oil producing states translates into oil supply shortfalls. The Libyan conflict that broke out in February 2011 highlighted the fear that intrastate conflict in oil producing states may imply shortfalls and ensuing volatile global oil prices. I argue, however, that it is far from certain that shortfalls following conflict outbreak will occur, since both sides in a conflict face incentives simultaneously to protect and maintain oil installations and to strike and destroy these. Based on a quantitative analysis of 39 intrastate wars in oil producing countries (1965-2007) I conclude that outbreak of conflict does not translate into production decline with any certainty. In fact, likelihoods are less than 50% for reductions to occur. In many cases growing production actually followed conflict outbreak. I conclude by investigating four characteristics of intrastate conflict that may explain when oil production is at risk during conflict: (1) proximity of oil producing fields to key battle zones, (2) duration of conflict, (3) separatism and the location of oil in separatist territory, and (4) the relative size of oil production. While the first three factors did not prove important, oil producer size could be significant. But further research is needed to establish this with greater certainty. - Highlights: > Oil shortfall during intrastate conflict is not a given. > Statistical analysis of 39 intrastate conflicts in oil producing countries since 1965. > Examination of four characteristics of intrastate conflict in oil producing countries. > Marginal significance related to large producers and production shortfall.

  11. Intrastate conflict in oil producing states: A threat to global oil supply?

    International Nuclear Information System (INIS)

    Toft, Peter

    2011-01-01

    In this paper I investigate how often and how much outbreaks of intrastate conflict in oil producing states translates into oil supply shortfalls. The Libyan conflict that broke out in February 2011 highlighted the fear that intrastate conflict in oil producing states may imply shortfalls and ensuing volatile global oil prices. I argue, however, that it is far from certain that shortfalls following conflict outbreak will occur, since both sides in a conflict face incentives simultaneously to protect and maintain oil installations and to strike and destroy these. Based on a quantitative analysis of 39 intrastate wars in oil producing countries (1965-2007) I conclude that outbreak of conflict does not translate into production decline with any certainty. In fact, likelihoods are less than 50% for reductions to occur. In many cases growing production actually followed conflict outbreak. I conclude by investigating four characteristics of intrastate conflict that may explain when oil production is at risk during conflict: (1) proximity of oil producing fields to key battle zones, (2) duration of conflict, (3) separatism and the location of oil in separatist territory, and (4) the relative size of oil production. While the first three factors did not prove important, oil producer size could be significant. But further research is needed to establish this with greater certainty. - Highlights: → Oil shortfall during intrastate conflict is not a given. → Statistical analysis of 39 intrastate conflicts in oil producing countries since 1965. → Examination of four characteristics of intrastate conflict in oil producing countries. → Marginal significance related to large producers and production shortfall.

  12. Queratitis lamelar difusa después del Lasik Diffuse lamellar keratitis after LASIK

    Directory of Open Access Journals (Sweden)

    Lorelei Ortega Díaz

    2010-12-01

    Full Text Available OBJETIVO: Describir el comportamiento de la queratitis lamelar difusa como complicación después de emplear la técnica quirúrgica queratomileusis in situ con láser. MÉTODOS: Se realizó un estudio descriptivo, de corte transversal en el Servicio de Cirugía Refractiva Corneal del Instituto Cubano de Oftalmología "Ramón Pando Ferrer" en el último trimestre del año 2008. La muestra quedó conformada por 16 ojos a los que se les realizó la queratomileusis in situ con láser como técnica quirúrgica para corregir ametropía y que presentaron complicaciones con esta cirugía. Se analizaron variables como la agudeza visual sin corrección; los ojos con esta complicación fueron analizados según la clasificación de Linebarger. RESULTADOS: La frecuencia de queratitis lamelar difusa fue de 3,0 por cada 100. La agudeza visual no corregida se comportó entre 0,8 y 1,0 en 12 ojos de 16 afectados, el estadio 1 se presentó en 12 ojos. CONCLUSIONES: La queratitis lamelar difusa es una complicación poco frecuente, los casos que la padecieron alcanzaron una buena agudeza visual final sin corrección. Predominó la forma leve de este cuadro.OBJECTIVE: To describe the situation of Diffuse lamellar keratitis as a complication after in situ keratomileusis with laser. METHODS: A descriptive cross-sectional study was carried out in the Refractive Corneal Service of "Ramón Pando Ferrer" Cuban Institute of Ophthalmology during the last quarter of 2008. The sample embraced 16 eyes that underwent in situ keratomileusis plus laser as the refractive procedure to correct ametropy and presented with some complications. Visual acuity without correction was one the analyzed variables and the eyes with this type of complication were classified according to Linebarger´s classification. RESULTS: The diffuse lamellar keratitis frequency was 3.0 per one hundred cases, the visual acuity without correction was 0.8 to 1.0 in 12 out of 16 eyes whereas stage 1 was

  13. ESTRATEGIA PARA EL PRONÓSTICO DEL RTO DE FAST TCP, MEDIANTE LÓGICA DIFUSA

    Directory of Open Access Journals (Sweden)

    Carlos Peña

    2013-07-01

    Full Text Available Este artículo presenta el diseño y la simulación de una estrategia para el pronóstico del temporizador de retransmisión del algoritmo de control de la congestión FAST TCP. La estrategia utiliza la técnica de inteligencia computacional denominada lógica difusa. Los resultados de la simulación demuestran que a través de esta nueva forma de pronóstico del RTO, FAST TCP hace un mejor seguimiento a la situación real de congestión de la red, en el marco de una conexión entre dos extremos de la misma.

  14. Lógica Difusa Basada en la Experiencia del Usuario para Medir la Usabilidad

    OpenAIRE

    Lionel Rodolfo Baquero Hernández; Osviel Rodríguez Valdés; Febe Ángel Ciudad Ricardo

    2016-01-01

    La mejor forma de crear un aplicación informática usable es realizando un diseño centrado en el usuario, diseñando para y por el usuario, en contraposición a lo que podría ser un diseño centrado en la tecnología o uno centrado en la creatividad u originalidad. Por lo que se puede también afirmar que la mejor forma de que la usabilidad sea medible es que dicha evaluación sea realizada por el usuario de la misma. Este trabajo se propone como objetivo diseñar una lógica difusa basada en la exper...

  15. Task Analysis Assessment on Intrastate Bus Traffic Controllers

    Science.gov (United States)

    Yen Bin, Teo; Azlis-Sani, Jalil; Nur Annuar Mohd Yunos, Muhammad; Ismail, S. M. Sabri S. M.; Tajedi, Noor Aqilah Ahmad

    2016-11-01

    Public transportation acts as social mobility and caters the daily needs of the society for passengers to travel from one place to another. This is true for a country like Malaysia where international trade has been growing significantly over the past few decades. Task analysis assessment was conducted with the consideration of cognitive ergonomic view towards problem related to human factors. Conducting research regarding the task analysis on bus traffic controllers had allowed a better understanding regarding the nature of work and the overall monitoring activities of the bus services. This paper served to study the task analysis assessment on intrastate bus traffic controllers and the objectives of this study include to conduct task analysis assessment on the bus traffic controllers. Task analysis assessment for the bus traffic controllers was developed via Hierarchical Task Analysis (HTA). There are a total of five subsidiary tasks on level one and only two were able to be further broken down in level two. Development of HTA allowed a better understanding regarding the work and this could further ease the evaluation of the tasks conducted by the bus traffic controllers. Thus, human error could be reduced for the safety of all passengers and increase the overall efficiency of the system. Besides, it could assist in improving the operation of the bus traffic controllers by modelling or synthesizing the existing tasks if necessary.

  16. Una aproximación a los conjuntos alcanzables de una inclusión diferencial difusa

    Directory of Open Access Journals (Sweden)

    William González-Calderón

    2012-06-01

    Full Text Available Se estudian los sistemas dinámicos difusos a partir de la noción de inclusión diferencial difusa introducida en [24]. Se analizan algunas técnicas utilizadas para resolver inclusiones diferenciales difusas asociadas a problemas de valor inicial, y se introduce una nueva forma de aproximación a los conjuntos alcanzables difusos, la cual permite resolver de manera más natural una inclusión diferencial. Abstract. From the notion of fuzzy differential inclusion introduced in [24], fuzzy dynamical systems are studied. Some techniques used to solve fuzzy differential inclusions associated to initial value problems are discussed. A new approximation technique for fuzzy attainable sets which allows to solve in a more natural way a fuzzy differential inclusion is introduced.

  17. Intra-State Challenges to the Nation-State Project in Africa ...

    African Journals Online (AJOL)

    Intra-State Challenges to the Nation-State Project in Africa. Abdul Raufu Mustapha. Abstract. No Abstract Available CODESRIA Bulletin No.2, 3 & 4 2003: 26-34. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  18. 75 FR 27340 - Enterprise Alabama Intrastate, LLC; Notice of Petition for Rate Approval

    Science.gov (United States)

    2010-05-14

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. PR10-21-000] Enterprise..., Enterprise Alabama Intrastate, LLC (Enterprise Alabama) filed a petition for rate approval pursuant to section 284.123(b)(2) of the Commission's regulations. Enterprise Alabama states it is filing to justify...

  19. 76 FR 70438 - Enterprise Intrastate L.P., Enterprise Texas Pipeline LLC; Notice of Filing

    Science.gov (United States)

    2011-11-14

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. PR12-4-000; Docket No. PR12-5-000; Not Consolidated] Enterprise Intrastate L.P., Enterprise Texas Pipeline LLC; Notice of Filing Take notice that on November 1, 2011, the applicants listed above filed a revised Statement of...

  20. 75 FR 43964 - Enterprise Alabama Intrastate, LLC; Notice of Compliance Filing

    Science.gov (United States)

    2010-07-27

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. PR10-21-001] Enterprise..., Enterprise Alabama Intrastate, LLC (Enterprise Alabama) pursuant to a July 8, 2010, Letter Order which required Enterprise Alabama to file within 30 days of the issuance of the July 8 order a stand alone...

  1. 40 CFR 81.62 - Northeast Mississippi Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Region. 81.62 Section 81.62 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Air Quality Control Regions § 81.62 Northeast Mississippi Intrastate Air Quality Control Region. The Alabama-Mississippi-Tennessee Interstate Air Quality Control Region has been renamed the Northeast...

  2. 75 FR 45108 - Enterprise Alabama Intrastate, LLC Yankee Gas Services Company Kinder Morgan Tejas Pipeline LLC...

    Science.gov (United States)

    2010-08-02

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. PR10-63-000; Docket No. PR10-64-000; Docket No. PR10-66- 000] Enterprise Alabama Intrastate, LLC Yankee Gas Services Company Kinder Morgan Tejas Pipeline LLC (Not Consolidated); Notice of Baseline Filings July 26, 2010. Take...

  3. 78 FR 66841 - Turtles Intrastate and Interstate Requirements; Confirmation of Effective Date

    Science.gov (United States)

    2013-11-07

    ... DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration 21 CFR Part 1240 [Docket No. FDA-2013-N-0639] Turtles Intrastate and Interstate Requirements; Confirmation of Effective Date AGENCY... turtle eggs and live turtles with a carapace length of less than 4 inches to remove procedures for...

  4. Coloración Psicodélica de Imágenes Digitales mediante Lógica Difusa

    Directory of Open Access Journals (Sweden)

    Linda Sheriyn Rodríguez Castro

    2013-06-01

    Full Text Available En el presente artículo se propone un sistema de inferencia difusa para la manipulación del color en imágenes digitales con el propósito de modificar su estilo artístico. Se genera una combinación de colores diferente a la original de tal forma que produzca una nueva sensación visual. El sistema de lógica difusa propuesto, modela mediante conjuntos y reglas de inferencia difusas, la modificación de color considerando la modalidad artística denominada arte psicodélico, generando como resultado imágenes cuyos colores producen este efecto. En la segunda parte se afina el sistema de inferencia propuesto según datos empíricos determinados junto con expertos en el campo del arte, con el fin de obtener un mejor ajuste a la escala de colores del estilo artístico estudiado. Mediante la presentación de diferentes casos de prueba se evidencian los resultados obtenidos por el sistema antes y después de la optimización.

  5. Osteomielitis crónica esclerosante difusa Chronic diffuse sclerosing osteomyelitis

    Directory of Open Access Journals (Sweden)

    M. Paula Aparicio M

    2008-12-01

    Full Text Available La osteomielitis esclerosante difusa se considera como una osteomielitis crónica primaria consistente en un proceso inflamatorio, doloroso y prolongado en el tiempo. Afecta solo a la mandíbula y es generalmente unilateral, compromete hueso basal y alveolar, y se localiza al nivel de cuerpo, ángulo, rama e incluso cóndilo. La causa es aún controversial, ya que algunos le atribuyen un origen infeccioso, mientras otros lo consideran una condición no infecciosa, como producto de sobrecargas o asociado con síndrome SAPHO (sinovitis, acné, pustulosis, hiperostosis y osteítis, pero la literatura no es concluyente. Con respecto al tratamiento, al igual que su causa, no está totalmente esclarecido y se describen a lo largo del tiempo distintas alternativas, que van desde lo conservador a lo más radical. Se presenta el seguimiento y tratamiento durante 7 meses de una paciente afectada por osteomielitis esclerosante difusa con 18 años de evolución aproximadamente, que ha sido refractaria a las alternativas terapéuticas convencionales.Diffuse sclerosing osteomyelitis is considered a chronic primary osteomyelitis consisting in an inflammatory, painful and prolonged process. It only affects the mandible and it is generally unilateral. It involves the basal and alveolar bone and it is located at the level of body, angle, branch and even condyle. The cause is more controversial, since some attribute an infectious origin to it, whereas others consider it as a non-infectious condition resulting from the overloads or associated with SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis and osteitis, but literature is not concluding. Treatment as well as its cause are not totally clear. Different alternatives are described that go from the conservative to the most radical position. The 7-month follow-up and treatment of a female patient suffering from diffuse sclerosing osteomyelitis with approximately18 years of evolution that has been refractory

  6. Diffuse plane xanthomatosis associated with monoclonal gammopathy Xantomatose plana difusa associada a gamopatia monoclonal

    Directory of Open Access Journals (Sweden)

    Aristóteles Rosmaninho

    2011-08-01

    Full Text Available Diffuse plane normolipemic xanthomatosis (DPNX is a rare, non-inherited disease that is often associated with systemic diseases, mainly malignant hematological (especially multiple myeloma or lymph proliferative disorders. The DPNX can precede the appearance of such conditions by several years, so careful follow-up and periodic laboratory examinations are recommended even for patients that seemed to have no underlying disease. We describe a case associated with monoclonal gammopathy. This case shows that dermatological lesions can be the first manifestation of important hematological diseases and so physicians should be familiarized with this entityA xantomatose plana difusa normolipêmica (XPDN é uma dermatose adquirida rara, muitas vezes associada a doenças sistêmicas, nomeadamente neoplasias hematológicas(sobretudo o mieloma múltiplo ou a processos linfoproliferativos. A XPDN pode preceder o aparecimento dessas doenças em vários anos, sendo por isso recomendada uma vigilância clínica e laboratorial periódica, mesmo para os doentes que aparentemente não apresentam uma doença associada. Descrevemos um caso associado à gamopatia monoclonal. Este caso demonstra a importância das manifestações cutâneas como primeira manifestação de doenças hematológicas importantes e por isso os clínicos devem estar familiarizados com esta entidade

  7. APRENDIZAJE SUPERVISADO PARA LA DISCRIMINACIÓN Y CLASIFICACIÓN DIFUSA

    Directory of Open Access Journals (Sweden)

    CARLOS SOTO

    2011-01-01

    Full Text Available El objetivo del presente artículo es proponer un nuevo método de análisis discriminante difuso, que hace uso de la estrategia de aprendizaje supervisado y utiliza la distancia euclidiana como medida de disimilitud. Las fórmulas que se proponen permiten resolver problemas de discriminación y clasificación de objetos en categorías que no pueden ser definidas con precisión pues tienen algún grado de solapamiento. Se utiliza una base de datos de referencia ampliamente utilizada en Reconocimiento de Patrones para ilustrar el método propuesto. Se presentan las superficies resultantes de graficar las funciones de pertenencia de categorías difusas para varios ejemplos. Luego, se compara el método propuesto con el discriminante lineal de Fisher para mostrar que la curva de nivel con grado de pertenencia 0.5 coincide con el discriminante lineal de Fisher, en análisis para dos categorías. Finalmente, se concluye que la técnica propuesta es fácil de aplicar y eficiente computacionalmente.

  8. Expansion dispersa, ciudad difusa y transporte: el caso de Querétaro, México

    Directory of Open Access Journals (Sweden)

    Carlos Martner

    2016-01-01

    Full Text Available A partir de la discusión conceptual sobre las tendencias de concentración y dispersión espacial en las fases recientes de desarrollo capitalista y la transformación de las relaciones entre lo urbano y lo rural, se analiza el papel que desempeñan las redes de transporte en los nuevos patrones de ordenación del territorio de una ciudad intermedia mexicana (Querétaro, caracterizada por la expansión difusa de su zona metropolitana. Este proceso involucra un vínculo creciente con localidades rurales (microrregión Navajas-Galera, las mismas que han visto modificarse aceleradamente su entorno en los últimos quince años, por el asentamiento progresivo y discontinuo de actividades industriales y de servicios en el territorio. El método de análisis, basado en un enfoque estructural-sistémico, muestra el progresivo desvanecimiento de la división conceptual tajante establecida tradicionalmente entre el campo y la ciudad. Asimismo, constata que el desarrollo de los sistemas de transporte regional constituye un elemento estratégico de articulación espacial en esta nueva configuración territorial ampliada, donde la intensificación de la movilidad es sustantiva.

  9. MODELIZACIÓN DIFUSA PARA LA PLANIFICACIÓN AGREGADA DE LA PRODUCCIÓN EN AMBIENTES DE INCERTIDUMBRE

    Directory of Open Access Journals (Sweden)

    MARTÍN DARIO ARANGO SERNA

    2010-01-01

    Full Text Available El presente artículo presenta una herramienta de apoyo a los procesos de toma de decisión en la planificación de la producción a mediano plazo cuando la demanda es un parámetro con incertidumbre, desarrollada al interior del Grupo de Logística IndustrialOrganizacional GICO. El desarrollo de un plan de producción lleva consigo la determinación de parámetros que muchas veces poseen cierto grado de vaguedad, esto conlleva a que el personal a cargo de tomar dediciones asuma el manejo de esta incertidumbre. La lógica difusa aparece como una herramienta alternativa a la estocástica o tradicional para asistir procesos de toma de decisiones en ambientes difusos. Este artículo inicialmente realiza una breve introducción acerca de la planificación de la producción y de la lógica difusa. Seguidamente se diseña un modelo de programación lineal difusa como herramienta de apoyo para la toma de decisión en la planeación agregada de la producción cuando esta sigue una estrategia de alcance de la demanda prevista, asumiendo a la demanda como un parámetro difuso. Para la construcción de este modelo fue preciso plantear previamente un modelo de programación lineal que marcara los límites del modelo difuso. Finalmente en este artículo se soluciona un problema de planeación agregada donde la demanda posee incertidumbre, utilizando el modelo difuso propuesto.

  10. Sistema de Navegación Reactiva Difusa para Giros Suaves de Plataformas Móviles Empleando el Kinect

    Directory of Open Access Journals (Sweden)

    Claudia Cruz Martínez

    2016-11-01

    Full Text Available La navegación en un robot móvil es la habilidad para desplazarse de un lugar a otro dentro de un entorno evitando los obstáculos que se presenten. La autonomía de un robot móvil se basa en su sistema de navegación. La aplicación de técnicas de Inteligencia Artificial como la lógica difusa y el uso de la visión por computadora son dos herramientas empleadas para cumplir esta tarea. En algunos sistemas de navegación la seguridad y la facilidad de operación son factores muy importantes. En estos casos, la tolerancia a la incertidumbre de información, la reacción ante objetos imprevistos, y la navegación mediante giros suaves son argumentos del diseño de estos sistemas. En este artículo se presenta el desarrollo de un sistema de navegación reactiva difusa que emplea los datos de profundidad del sensor Kinect, algoritmos de visión por computadora, y lógica difusa, para generar ángulos de giro suave para la navegación de un robot móvil. En pruebas realizadas con la plataforma móvil ERA-MOBI se observaron giros suaves con un porcentaje de evasión de obstáculos del 85.7%.

  11. Structural Funding and Intrastate Regional Disparities in Post-Communist Countries

    Directory of Open Access Journals (Sweden)

    Jiří NOVOSÁK

    2017-06-01

    Full Text Available The intent of this paper is to provide empiricalevidence about associations between structuralfund allocation in the Czech Republic’s micro-regions for the programming period 2007 to2013, and intrastate regional disparities by consideringthe three traditional pillars of sustainabledevelopment. The results have mixed evidence,both supporting and not supporting various associations.Economically disadvantaged micro-regionshad less structural fund allocation in theeconomic pillar of sustainable development. Tothe contrary, socially disadvantaged micro-regionswere allocated more structural funds inthe social pillar of sustainable development.Therefore, a compensatory effect in sustainabledevelopment was observed between economicand social pillars. Results in the environmentalpillar were insignifi cant. The results in this paperprovide an ambivalent conclusion regardingthe contention that spatial distribution of structuralfunding actually contributes to a reductionin intrastate regional disparities at the micro-regionallevel. However, micro regions with bettereconomic conditions, e.g. agglomeration economies,better human capital and patent activities– received more structural funding in total.

  12. Sistema de lógica difusa. Una aplicación a la percepción empresarial.

    OpenAIRE

    Mendoza Saboya, Liliana Adriana

    2010-01-01

    Este trabajo es una aplicación, en el ámbito social, de los elementos de lógica difusa. Particularmente, se presentan los resultados de un estudio previo que realizó el Grupo de Perdurabilidad Empresarial de la Universidad del Rosario en 318 empresas colombianas. La aplicación se efectúa sobre la percepción de los actores de empresa acerca de la autonomía y la eficiencia de los trabajadores; además se muestra una simulación cuando el sistema autonomía-eficiencia ha iterado pocas y muchas vece...

  13. Sistema de lógica difusa. Una aplicación a la percepción empresarial.

    OpenAIRE

    Mendoza Saboya, Liliana Adriana

    2009-01-01

    Este trabajo es una aplicación, en el ámbito social, de los elementos de lógica difusa. Particularmente, se presentan los resultados de un estudio previo que realizó el Grupo de Perdurabilidad Empresarial de la Universidad del Rosario en 318 empresas colombianas. La aplicación se efectúa sobre la percepción de los actores de empresa acerca de la autonomía y la eficiencia de los trabajadores; además se muestra una simulación cuando el sistema autonomía-eficiencia ha iterado pocas y muchas vece...

  14. LA GESTIÓN DE INDICADORES EMPRESARIALES CON LÓGICA DIFUSA PARA LA TOMA DE DECISIONES

    Directory of Open Access Journals (Sweden)

    MARTÍN DARÍO ARANGO SERNA

    2012-12-01

    Full Text Available En las organizaciones actuales la tomade decisiones está acompañada de cierto grado deincertidumbre, lo que no permite planificar sobre resultadosciertos. En algunas ocasiones medir estosresultados también implica incertidumbre asociadacon la ambigüedad o subjetividad del instrumentoutilizado. Como solución para este problema, sepropone un sistema de medición y análisis basadoen el Balance Scorecard que incorpora técnicas delógicas difusas para disminuir la incidencia de estaincertidumbre en los procesos de toma y análisis dedecisiones.

  15. Tormenta simpática paroxística siguiendo a injuria Axonal difusa Paroxysmal sympathetic storm after diffuse axonal head injury

    OpenAIRE

    Pablo Young; Barbara C. Finn; Debora Pellegrini; Elias D. Soloaga; Julio E. Bruetman

    2006-01-01

    El término tormenta simpática paroxística se utiliza como sinónimo de alteraciones episódicas de la temperatura corporal, la presión arterial, la frecuencia respiratoria y cardíaca, el tamaño pupilar y el nivel de conciencia, que coinciden con hiperhidrosis, salivación excesiva y postura extensora. Esto siempre en el contexto de una injuria axonal difusa grave que sigue a un traumatismo encéfalo-craneano (TEC) grave. Presentamos dos pacientes jóvenes con injuria axonal difusa secundaria a TEC...

  16. Evaluación de políticas y programas sociales mediante lógica difusa

    Directory of Open Access Journals (Sweden)

    Lucio Flores Payán

    2015-01-01

    Full Text Available El objetivo principal del presente documento es el de presentar una caracterización de la evaluación de política pública y en específico de programas para el desarrollo social, como es el caso del Programa HÁBITAT , proponiendo una forma alternativa a la práctica común de evaluación, al presentar una metodología basada en la teoría de la lógica difusa y sus aplicaciones. Los resultados evidencian dos elementos prioritarios, el primero de ellos, es el alcance en el impacto que el Programa Hábitat ha logrado en sus espacios de intervención (poliginos, el segundo, es la relevancia de utilizar la teoría de la lógica difusa para la comprensión de fenómenos de decisión política y aplicación práctica dirigida al bienestar y el interés social.

  17. Lógica clásica y lógica difusa: Facetas que las caracterizan

    OpenAIRE

    Almache Cabrera, Juan

    2013-01-01

    El análisis de información bibliográfica, como proceso metodológico para este artículo, condujo a la elaboración de matrices correspondientes a cada una de las facetas: lógica, relacional, epistémica y de conjuntos, de las lógicas clásica y difusa. La interrelación y análisis de las diferentes premisas constantes en estas matrices permitió la diversificación en la concepción de cada una de ellas, considerando a la lógica clásica como ciencia de los principios formales y normativos del razonam...

  18. Uma Abordagem de Monitoração de Tráfego de Rede utilizando Lógica Difusa

    OpenAIRE

    Silveira, Enio Rovere; Universidade Federal de Santa Catarina; Dantas, M. A.R.; Universidade Federal de Santa Catarina

    2005-01-01

    Neste artigo, apresentamos um trabalho de pesquisa de monitoração de tráfego de rede utilizando uma abordagem de lógica difusa. Nossa contribuição está focada na criação de um protótipo que pudesse ser avaliado em uma configuração real de produção de uma grande organização, utilizando-se de hardware e software existentes na empresa. Resultados experimentais obtidos através de estudos de casos reais no ambiente, indicam o sucesso da abordagem na melhoria da monitoração de tráfego da rede....

  19. CARGA DE POLUIÇÃO DIFUSA EM BACIAS HIDROGRÁFICAS COM DIFERENTES IMPACTOS ANTRÓPICOS

    OpenAIRE

    Marielle Medeiros de Souza

    2012-01-01

    A ocupação desordenada do solo sem os devidos tratos conservacionistas e ações antrópicas indevidas, provocam impactos na hidrologia local, como também induzem a poluição dos recursos hídricos. Esta pesquisa teve como objetivo avaliar a carga de poluição difusa em quatro bacias hidrográficas com diferentes impactos antrópicos, em locais distintos do rio Vacacaí Mirim no município de Santa Maria/RS, obtendo-se uma análise dos fatores que interferem na poluição do curso hídrico como: precipitaç...

  20. THE ROLE OF UNASUR IN INTRA-STATE CONFLICTS IN THE REGION

    Directory of Open Access Journals (Sweden)

    ALEJANDRO AMIGO TOSSI

    2017-12-01

    Full Text Available The UNASUR treaty does not consider the prevention of conflicts, however, one of its objectives is to create an area of peace in South America, and for that purpose, has intervened in a series of conflicts that have threatened the stability of the region. The cases have gone from the stabilization of an inter-state crisis to an unsuccessful attempt to stop a president’s impeachment. This article describes the circumstances that shaped the internal conflicts of Bolivia in 2008, Ecuador in 2010 and Paraguay in 2012; and the subsequent role of UNASUR in those intra-state situations.

  1. Queratitis lamelar difusa después de un corte incompleto Diffuse lamellar keratitis after incomplete corneal flap cut

    Directory of Open Access Journals (Sweden)

    Yanaisa Riverón Ruiz

    2012-12-01

    Full Text Available La queratitis lamelar difusa es una inflamación estéril de la interfase lamelar que suele presentarse 24 horas después de la realización de la queratomileusis in situ asistida con láser y potencialmente puede comprometer la agudeza visual final. Se presenta un paciente de 25 años de edad con antecedentes de cirugía refractiva corneal mediante queratomileusis in situ con láser en el ojo derecho, que tuvo como complicación durante el acto quirúrgico un corte incompleto. En el posoperatorio inmediato se le diagnosticó una queratitis lamelar difusa. Se aplicó tratamiento local y se obtuvo la recuperación visual total del paciente con estabilidad del defecto refractivo. Esto permite posteriormente realizarle la corrección mediante cirugía refractiva de superficie.The diffuse lamellar keratitis is a sterile swelling of the lamellar interface which arises generally 24 hours after laser in situ keratomileusis and might affect the final visual acuity. A 25 years- old patient with history of corneal refractive surgery by laser in situ keratomileusis on his right eye was reported. He suffered from an incomplete corneal flap cut as complication during the surgical procedure, and a diffuse lamellar keratitis was detected at the immediate postsurgical visit. Total visual recovery and the refractive defect stability were attained through local treatment. This allows further correcting the defect by means of a surface refractive surgery in the future.

  2. 75 FR 59705 - SourceGas Distribution LLC; Bay Gas Storage, LLC; Enterprise Texas Pipeline LLC; Dow Intrastate...

    Science.gov (United States)

    2010-09-28

    ...; Docket No. PR10-110-000; Docket No. PR10-112-000; Docket No. PR10- 113-000 (Not Consolidated) SourceGas Distribution LLC; Bay Gas Storage, LLC; Enterprise Texas Pipeline LLC; Dow Intrastate Gas Company; ONEOK Field Services Company, L.L.C.; Corning Natural Gas Corporation; Notice of Baseline Filings September 21, 2010...

  3. Light Weapons and Intrastate Conflict, Early Warning Factors and Preventive Action. A Report to the Carnegie Commission on Preventing Deadly Conflict

    National Research Council Canada - National Science Library

    Laurance, Edward

    1998-01-01

    It has become very commonplace to note the shift from interstate to intra-state conflict in the world-civil and ethnic wars whose resolution seems to resist the best efforts of the international community...

  4. Sistemas de lógica difusa en el proceso de secado de café en lecho fluidizado

    Directory of Open Access Journals (Sweden)

    Elkin Mauricio López Fontal

    2005-09-01

    Full Text Available En el presente trabalo de investigación se experimenta con un sistema de secado de granos en lecho fluidizado. Se utiliza un prototipo en el cual se seca café utilizando varias temperaturas del aire de secado (López, 2002. Los resultados obtenidos muestran que el tiempo de secado varIa entre 6 a 8 horas, el contenido de humedad final del grano presenta uniformidad y en prueba de tasa se obtiene un producto con caracterIsticas organolépticas de buena calidad. Como complemento a lo anterior y teniendo en cuenta el grado de incertidumbre de dicho proceso, median- te sistemas de lógica difusa se plantean en forma preliminar algunas posibles estrategias de control y automatización que presenta el proceso de secado de café en lecho fluidizado, relacionadas con: establecer el punto de fluidización de los granos hümedos, control de la velocidad superficial del aire, y usar al inicio del proceso de secado una temperatura de aire mayor de 50°C .

  5. Conflict financing and the recurrence of intra-state armed conflict: what can be done from the perspective of conflict financing to prevent the recurrence of intra-state armed conflict ?

    OpenAIRE

    Wennmann, Achim; Krause, Keith

    2008-01-01

    This thesis develops a better understanding of the relationship between conflict financing and the recurrence of intra-state armed conflict. It contributes to research on armed conflict by analysing conflict recurrence from the perpective of conflict financing and developing a comprehensive approach to conflict financing and an estimation tool for the cost of armed conflict. In addition, it elaborates a framework for the relationship between conflict financing and conflict dynamics which is a...

  6. Sistema experto basado en lógica difusa tipo 1 para determinar el grado de riesgo de preeclampsia

    Directory of Open Access Journals (Sweden)

    Edna Rocio Núñez Flórez

    2014-01-01

    Full Text Available La preeclampsia es una enfermedad que pueden desarrollar las mujeres en estado de embarazo, y según el DANE es responsable del 35 % de las muertes maternas en Colombia. Ante esta situación, el objetivo de este artículo es presentar un sistema experto (SE basado en lógica difusa tipo I que permite identificar el nivel de riesgo de sufrir la enfermedad, y posibilita un diagnóstico precoz y la vigilancia estricta de la mujer gestante, aspectos fundamentales para prevenir las complicaciones asociadas a la preeclampsia. Para llevar a cabo la investigación se realizó la revisión bibliográfica para conocer los factores de riesgo que generan la enfermedad; con apoyo de un médico se establecieron los factores que se deben tener en cuenta (variables de entrada y la base de reglas, los cuales son los componentes principales del SE. Posteriormente se realiza la implementación del software con las herramientas MySql como base de datos y Java como lenguaje de programación. Para la validación de tomaron 30 historias clínicas suministradas por la Secretaría de Salud Departamental del Caquetá. El resultado del SE arrojó un 94.17 % de efectividad con un margen de error del 5.83 %, comparados con los resultados proporcionados por el especialista que analizó las historias clínicas.

  7. Leishmaniasis cutánea difusa en un paciente con sida Diffuse cutaneous leishmaniasis in a patient with AIDS

    Directory of Open Access Journals (Sweden)

    Carlos Pérez

    2006-12-01

    Full Text Available Objetivo. Estudiar un paciente con leishmaniasis cutánea difusa y sida y comentar el tema.
    Materiales y métodos. Soldado de 29 años, procedente de San José del Guaviare, con pérdida de 18 kilos de peso en los últimos 10 meses y erupción generalizada de dos meses de evolución. El Elisa y el Western blot fueron positivos para virus de inmunodeficiencia humana. Tenía 92 LT CD4/mm3. Presentaba máculas, pápulas y placas eritematoescamosas, psoriasiformes y generalizadas, cuyas biopsias demostraron abundantes microorganismos fagocitados por macrófagos, que se teñían de negro con la coloración de Gomory. Se diagnosticó histoplasmosis diseminada. Se inició tratamiento antirretroviral y antimicótico con itraconazol sin observar mejoría.
    Resultados. La anfotericina B produjo mejoría, pero las lesiones recidivaron más numerosas y nodulares con compromiso oral. Once meses después del comienzo de su enfermedad, nuevas biopsias de piel y la revisión de las anteriores confirmaron que el paciente tenía leishmaniasis cutánea difusa. El cultivo no permitió aislar el parásito. La miltefosina produjo mejoría importante. Las pápulas y máculas recidivaron varios meses después; recibió 52 ampollas de glucantime® durante dos meses, consiguiéndose la curación clínica, situación que permanece dos años y medio después de iniciada la enfermedad.
    Conclusiones. La leishmaniasis cutánea difusa debe plantear sospecha de sida. El tratamiento es difícil; debe ser antirretroviral y antileishmaniásico, con profilaxis antiparasitaria. Los amastigotes de Leishmania no son positivos con la coloración de Gomory en técnicas controladas; se diferencian del histoplasma por morfología, cultivo, inmunohistoquímica, anticuerpos específicos y reacción en cadena de la polimerasa. La asociación leishmaniasissida es beneficiosa para ambos gérmenes; es posible el aumento de casos en Colombia por el auge de ambas entidades

  8. Definición de Condiciones para Taladrado Usando un Enfoque Basado en Lógica Difusa Cutting Conditions Definition Using an Approach Based on Fuzzy Logic

    OpenAIRE

    Orlando M Durán; Italo Bavestrello

    2006-01-01

    En este trabajo se presenta un modelo para optimizar la selección de parámetros de corte de un proceso de taladrado. En el modelo desarrollado, basado en técnicas de lógica difusa, se definieron como datos de entrada la dureza del material a taladrar, el tipo de material de la herramienta y el estado de conservación de la máquina. Luego se especificaron los conjuntos difusos, referentes a los datos de entrada y salida del modelo, el tipo de función de pertenencia, y el método de defusificació...

  9. Modelo de apoyo a la comercializaci ón de electricidad usando lógica difusa y aprendizaje de máquina

    OpenAIRE

    MORENO, JULIAN; OVALLE, DEMETRIO

    2010-01-01

    El trabajo que se describe en este artículo explora la posibilidad de emplear un modelo basado en la lógica difusa y en el aprendizaje de máquina para que los agentes comercializadores del mercado eléctrico Colombiano, o de alguno con características similares, maximicen sus utilidades de acuerdo a su perfil de riesgo. El modelo consta de dos partes, la primera es un sistema experto difuso que les brinda a estos agentes una recomendación respecto a la estrategia comercial que deben emplear, y...

  10. Estudio anatomo-clínico y epidemiológico de la queratitis laminar difusa como complicación postquirurgica de la fotoqueratomileusis (LASIK)

    OpenAIRE

    Cuadrado Escamilla, José Luis

    2008-01-01

    RESUMEN OBJETIVOS La presente Thesis Doctoralis se propone como objetivo principal estudiar la incidencia de queratitis laminar difusa (DLK) en pacientes amétropes tratados mediante cirugía querato-refractiva (LASIK). Pretende, además, analizar las variables preoperatorias relacionadas con el desarrollo de esta complicación así como sus características epidemiológicas y clínicas, a partir de una muestra de 488 ojos. Paralelamente, se estudia dicha intervención quirúrgica y c...

  11. Aproximación a la medición del capital intelectual organizacional aplicando sistemas de lógica difusa

    OpenAIRE

    Medina, Santiago; Zuluaga, Esteban; López, Daniel; Granda, Fabián

    2010-01-01

    El capital intelectual es un componente inherente a toda empresa y lo conforma un grupo de variables que agrega valor; por lo tanto, su medición y direccionamiento estratégico son, con frecuencia, punto focal en las organizaciones del siglo XXI. Infortunadamente, por el carácter intangible y cualificativo de algunos de sus componentes, su medición y control presentan dificultades. Este trabajo propone, mediante el uso de herramientas basadas en la lógica difusa, una aproximación a la medición...

  12. Atenção concentrada e atenção difusa : elaboração de instrumentos de medida

    OpenAIRE

    Braga, Juliana Leão

    2007-01-01

    Atenção difusa e atenção concentrada são construtos bastante investigados em psicologia educacional, do trânsito, clínica e organizacional. Neste trabalho objetivou-se construir e investigar a validade de construto de testes que mensurassem esses traços latentes. Os estudos contaram com diferentes participantes, sendo, no total, cerca de nove grupos. Nos estudos de construção, os instrumentos passaram por análise semântica, de juízes e estudos-piloto. Para os estudos de investigação da valida...

  13. Talent predictors

    Directory of Open Access Journals (Sweden)

    Raquel Lorenzo

    2007-07-01

    Full Text Available The knowledge of talent predictors is the initial point for building diagnosis and encouragement procedures in this field. The meaning of word predictor is to anticipate the future, to divine. Early prediction of high performance is complex problem no resolute by the science yet. There are many discrepancies about what measure and how to do. The article analyze the art state in this problematic because the excellence is determined by the interaction between internal and environmental factors.

  14. Cataract in a patient with the Alport syndrome and diffuse Leiomyomatosis Catarata em paciente com sindrome de alport e leiomiomatose difusa

    Directory of Open Access Journals (Sweden)

    Luis Santiago - Cabán

    2008-12-01

    Full Text Available We describe a case of painless progressive loss of vision in a 15 years old male patient with Alport syndrome and diffuse Leiomyomatosis. After a comprehensive history and ocular examination, a diagnosis of bilateral posterior subcapsular cataracts was given. Patient underwent cataract extraction. His best corrected post-operative visual acuity was 20/25 in both eyes. We conclude that posterior subcapsular cataracts may lead to painless and progressive loss of vision in patients with Alport syndrome and Diffuse Leiomyomatosis.Nós descrevemos o caso de perda visual progressiva indolor em um paciente de 15 anos, sexo masculino, com Síndrome de Alport e Leiomiomatose difusa. Após história completa e exame oftalmológico, foi feito o diagnóstico de catarata subcapsular posterior bilateral. O paciente foi submetido à cirurgia de catarata. Nós concluímos que cataratas subcapsulares posteriores podem levar a perda visual progressiva e indolor em pacientes com Síndrome de Alport e Leiomiomatose Difusa.

  15. Estimación de emisiones difusas de PM10 y rendimiento de MTD’s en el sector cerámico

    Directory of Open Access Journals (Sweden)

    Monfort, E.

    2009-02-01

    Full Text Available Particle emission into the atmosphere is one of the major impacts of the ceramic industry from both channelled sources (stacks and fugitive sources. The latter give rise to so-called diffuse or fugitive emissions, which have traditionally received little regulatory attention and have been the focus of few technical studies. However, this situation is changing in view of the importance of the relative contribution of these emissions in certain industrial activities, such as the ceramic industry, which is leading to specific requirements for fugitive emission control in environmental authorisations, as well as in the recent introduction of the need to quantify these emissions in the emissions declarations required by the European Union (EPER-PRTR. One of the current issues in fugitive particle emission control is, in fact, the quantification of fugitive particle emissions. In this study, an instrument for estimating these emissions has been developed, based on methodologies proposed in the literature, which is applicable to ceramics manufacturing processes in different technological scenarios. Two estimation methods have been used: an analytical method, based on the use of equations and emission factors, and a completely experimental method. Appropriate combination of both methods has allowed estimation of the mass flow in fugitive particle emissions at two industrial facilities, in two technological scenarios. The treatment of the results has enabled the efficiencies achieved in reducing the fugitive emissions of particulate matter at the studied facilities to be estimated.La emisión de partículas a la atmósfera constituye uno de los mayores impactos de la industria cerámica, tanto por focos canalizados (chimeneas como por focos difusos. Estos últimos producen las denominadas emisiones difusas o fugitivas, a las que tradicionalmente se les ha prestado poca atención, tanto por la normativa legal como por los estudios técnicos. No obstante

  16. Evaluación de la energía solar global, difusa y directa en España : atlas de radiación solar

    OpenAIRE

    Izquierdo Belmonte, Pablo

    2011-01-01

    En esta Tesis Doctoral se hace un estudio de la radiación solar (directa, difusa y global en plano horizontal) que se recibe en España. Las bases de datos utilizadas cubren el período 2002-2009. Para reducir el tiempo de cálculo, la zona de estudio se ha dividido en dos áreas geográficas, una, limitada entre los paralelos 35ºN y 45ºN y meridianos 5ºE y 10ºO, que incluye la Península Ibérica, Baleares, Ceuta y Melilla, y otra, limitada entre los paralelos 27ºN y 30ºN y meridianos 13ºO y 18ºO, ...

  17. Estado atual da leishmaniose cutânea difusa (LCD no Estado do Maranhão: II. aspectos epidemiológicos, clínico-evolutivos

    Directory of Open Access Journals (Sweden)

    Jackson Maurício Lopes Costa

    1992-06-01

    Full Text Available Os Autores fazem um estudo retrospectivo e prospectivo de 6 pacientes portadores de leishmaniose cutânea difusa, observados no Estado do Maranhão a partir de 1974. Os casos abordados são oriundos de diversas regiões do estado, observando-se em todos eles o envolvimento da leishmania (Leishmania amazonensis, sendo que 5 (84% dos pacientes apresentaram início de doença na 1ª década de vida. Em todos os pacientes envolvidos no estudo, houve relato de lesão inicial nodular única, que, posteriormente, em período variável de tempo, disseminou-se adquirindo outros aspectos. Evolutivamente apresentaram múltiplas lesões nodulares e ulceradas, intradermorreação de Montenegro(- e refratariedade aos esquemas terapêuticos utilizados até ao presente momento.

  18. MODELO DE APOYO A LA COMERCIALIZACIÓN DE ELECTRICIDAD USANDO LÓGICA DIFUSA Y APRENDIZAJE DE MÁQUINA

    Directory of Open Access Journals (Sweden)

    JULIAN MORENO

    2009-01-01

    Full Text Available El trabajo que se describe en este artículo explora la posibilidad de emplear un modelo basado en la lógica difusa y en el aprendizaje de máquina para que los agentes comercializadores del mercado eléctrico Colombiano, o de alguno con características similares, maximicen sus utilidades de acuerdo a su perfil de riesgo. El modelo consta de dos partes, la primera es un sistema experto difuso que les brinda a estos agentes una recomendación respecto a la estrategia comercial que deben emplear, y cuya definición depende principalmente de las condiciones del mercado. La segunda es un mecanismo de aprendizaje por refuerzo con el que los agentes "aprenden" a medida que perciben las consecuencias que sus acciones les acarrean, de manera que las modifican esperando obtener una recompensa no solo en el corto sino también en el largo plazo.

  19. UN MODELO DE GESTIÓN DE LA CALIDAD Y CANTIDAD DE AGUA CON LÓGICA DIFUSA GRIS PARA EL RÍO ABURRÁ

    OpenAIRE

    Luis Fernando Carvajal Serna

    2013-01-01

    Este artículo presenta un modelo de lógica difusa gris para la gestión de la calidad y cantidad del agua en el río Aburrá, el cual permite tener en cuenta la incertidumbre de los parámetros ambientales, que por lo general hacen que la toma de decisiones para las autoridades ambientales presente conflictos con los descargadores o contaminadores de los cuerpos de agua. La aplicación del modelo se hizo a una campaña del río Aburrá tomando como datos el caudal, el oxígeno disuelto y la demanda bi...

  20. Alterações difusas da traquéia: aspectos na tomografia computadorizada Diffuse abnormalities of the trachea: computed tomography findings

    Directory of Open Access Journals (Sweden)

    Edson Marchiori

    2008-01-01

    Full Text Available O objetivo deste ensaio pictórico foi apresentar as principais alterações tomográficas observadas em doenças que acometem a traquéia de forma difusa. As doenças estudadas foram amiloidose, traqueobroncopatia osteocondroplástica, traqueobroncomegalia, papilomatose laringo-traqueo-brônquica, linfoma, neurofibromatose, policondrite recidivante, granulomatose de Wegener, tuberculose, paracoccidioidomicose e traqueobroncomalácia. O principal aspecto observado na tomografia computadorizada foi o espessamento das paredes traqueais, com ou sem nodulações, calcificações parietais ou comprometimento da parede posterior. Embora a tomografia computadorizada permita a detecção e a caracterização das doenças das vias aéreas centrais, e a correlação com os dados clínicos reduza as possibilidades diagnósticas, a broncoscopia com biópsia continua sendo o procedimento mais importante no diagnóstico das lesões difusas da traquéia.The aim of this pictorial essay was to present the main computed tomography findings seen in diffuse diseases of the trachea. The diseases studied included amyloidosis, tracheobronchopathia osteochondroplastica, tracheobronchomegaly, laryngotracheobronchial papillomatosis, lymphoma, neurofibromatosis, relapsing polychondritis, Wegener's granulomatosis, tuberculosis, paracoccidioidomycosis, and tracheobronchomalacia. The most common computed tomography finding was thickening of the walls of the trachea, with or without nodules, parietal calcifications, or involvement of the posterior wall. Although computed tomography allows the detection and characterization of diseases of the central airways, and the correlation with clinical data reduces the diagnostic possibilities, bronchoscopy with biopsy remains the most useful procedure for the diagnosis of diffuse lesions of the trachea.

  1. Modelado del proceso de maquinado mediante el MEF y el uso de metamodelos con lógica difusa y regresión lineal

    Directory of Open Access Journals (Sweden)

    Edgar Andrés Patiño-Nariño

    2013-01-01

    Full Text Available Se implementó un modelo que simula el proceso de maquinado ortogonal de metales por el método de elementos finitos (MEF. Para el desarrollo del modelo se utilizó el programa Ansys Flotran. El material de trabajo se simuló como un fluido de alta viscosidad que impacta un sólido cuya geometría es la de la arista de corte. A partir del modelo numérico, se realizó un diseño de experimentos factorial fraccionado usando el programa Minitab, donde las variables de entrada seleccionadas fueron: profundidad de corte, velocidad de corte, ángulo de desprendimiento, densidad y viscosidad del fluido. Las variables de salida consideradas fueron la velocidad de salida de la de viruta y la posición del punto de estancamiento en la formación de la viruta. Se realizaron dos metamodelos funcionales que representan la interacción entre las variables de entrada y de salida del modelo MEF. El primer metalmodelo se realizó por medio de una regresión lineal y el segundo por lógica difusa. Los experimentos con los dos metamodelos mostraron que dos de las variables de entrada (profundidad de corte y ángulo de desprendimiento, tienen la mayor influencia en las variables de salida elegidas: velocidad de la viruta y en la posición del punto de estancamiento. El metamodelo basado en lógica difusa presentó una mejor representación de la relación entre las variables de entrada y de salida.

  2. INFERENCIA DIFUSA APLICADA A LA INGENIERÍA CONCURRENTE PARA EL DISEÑO DE PRODUCTOS DE MANUFACTURA EN CONDICIONES DE INCERTIDUMBRE FUZZY INFERENCE APPLIED TO CONCURRENT ENGINEERING FOR MANUFACTURING PRODUCT DESIGN UNDER CONDITIONS OF UNCERTAINTY

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    Martín Darío Arango Serna

    2012-12-01

    Full Text Available En este artículo se desarrolla un modelo de inferencia difusa para la toma de decisiones en condiciones de incertidumbre aplicado al diseño de productos bajo un esquema de ingeniería concurrente. Los requisitos del cliente y los criterios de los diferentes equipos interdisciplinarios para evaluar un diseño en particular son presentados como variables difusas. El modelo aquí desarrollado es aplicado a una empresa de confecciones.In this article a fuzzy inference model is developed for decision making under uncertainty conditions, applied to the design of products under a scheme of concurrent engineering. Customer requirements and criteria of different interdisciplinary teams to evaluate a particular design are presented as fuzzy variables. The model developed is applied to a garment company.

  3. Aplicación del proceso de análisis jerárquico extendido con lógica difusa para la selección de software para logística

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    Julián Andrés Zapata Cortés

    2012-01-01

    Full Text Available Este artículo presenta la aplicación del proceso de análisis jerárquico – Método AHP extendido con lógica difusa en la selección de una herramienta de software para logítica tipo WMS (Warehouse Management System en un astillero Colombiano. El método AHP ha sido utilizado ampliamente para resolver problemas de análisis de decisión en donde es necesario involucrar un alto número de factores y variables tanto cualitativas como cuantitativas, sin embargo, la mayor critica a este método es que el mismo no permite la inclusión de juicios de valor en una escala continua,  sino discreta, lo cual se puede corregir al integrar la lógica difusa. Este problema encuentra solución con la extensión del método AHP con lógica difusa, desarrollado por Chang en 1996. Adaptado para un contexto especifico como el de un Astillero en Colombia.

  4. System based on fuzzy logic for blade temperature supervision of the gas turbine of a CTCC; Sistema basado en logica difusa para la supervision de temperatura de alabes en la turbina de gas de una CTCC

    Energy Technology Data Exchange (ETDEWEB)

    Espinola V, Agustin; Madrigal E, Guadalupe [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Astorga Z, Carlos M [Cento Nacional de Investigacion y Desarrollo Tecnologico (Cenidet), Cuernavaca, Morelos (Mexico)

    2005-07-01

    The fuzzy logic has found an ample acceptance when it is used to handle high level control functions that fall outside the dominion of the conventional control methods. One of these cases is the application of the fuzzy logic to the supervisory control. In this article a supervisory control system designed with base in the theory of the diffuse logic, applied to the supervisory control of the blades temperature of a turbo gas unit (TGU). The validation results of the performance of the temperature supervisory control, obtained from tests before different scenarios, when this scheme of control was implemented in a nonlinear mathematical model that simulates a Thermometrical Power Station of Combined Cycle (TPSCC) [Spanish] La logica difusa ha encontrado una amplia aceptacion cuando se emplea para manejar funciones de control de alto nivel que caen fuera del dominio de los metodos convencionales de control. Uno de estos casos es la aplicacion de la logica difusa al control supervisorio. En este articulo se presenta un sistema de control supervisorio disenado con base en la teoria de la logica difusa, aplicado al control de supervision de la temperatura de alabes de una unidad turbo gas (UTG). Se muestran los resultados de validacion del desempeno del supervisorio de temperatura, obtenidos ante diferentes escenarios de pruebas, cuando se implemento este esquema de control en un modelo matematico no lineal que simula una Central Termoelectrica de Ciclo Combinado (CTCC)

  5. Should Intrastate Funding Formulae for the Older Americans Act Include a Rural Factor?

    Science.gov (United States)

    Coward, Raymond T.; And Others

    1995-01-01

    Investigated argument that place of residence influences economic and social services needs. Results demonstrated that rural residency increases both the likelihood of poor health and the need for services, after controlling for age, income, and race. Four predictor values accounted for a small proportion of the variance in need. (RJM)

  6. LÓGICA DIFUSA COMO HERRAMIENTA PARA LA BIOINDICACIÓN DE LA CALIDAD DEL AGUA CON MACROINVERTEBRADOS ACUÁTICOS EN LA SABANA DE BOGOTÁ - COLOMBIA

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    GUTIÉRREZ JUAN DAVID

    2004-06-01

    Full Text Available Se presenta una implementación de la metodología de lógica difusa (LD que permiteel cálculo de la calidad del agua en la Sabana de Bogotá, Colombia. Debido a que lasinteracciones entre los organismos acuáticos y las variables físicas y químicas sonun problema matemático de gran complejidad, se requiere de técnicas robustas parala construcción de tales modelos. La LD ofrece una posibilidad debido a su habilidadpara procesar simultáneamente la información “subjetiva” proveniente de expertosy la información “objetiva” recopilada mediante datos. Los resultados obtenidoscon la aplicación de la LD fueron confrontados con los valores del índice fisicoquímicoWQI (Water Quality Index, para comprobar el grado de confiabilidad de la metodologíade LD. La prueba de chi cuadrado mostró que no existe una diferencia significativaentre los valores esperados del índice WQI y los valores observados por la estimacióncon el sistema de LD

  7. Identificación de accionamiento de motor de inducción con bomba centrífuga usando lógica difusa

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    Luis Delfín Rojas Purón

    2011-02-01

    Full Text Available Con el objetivo de indicar zonas de trabajo con mejores rendimientos en los sistemas de accionamientoselectrohidráulicos, se realiza una identificación de los subsistemas del motor de inducción con bombacentrífuga encargada del transporte de hidromezclas de pulpas lateríticas, atendiendo a las variables quemás participan en la transferencia de energía, y con esto, supervisar y diagnosticar con anticipación sueficiencia. Se muestra un algoritmo con identificación difusa que correlaciona las funciones ofrecidasdesde la ecuación de los momentos del accionamiento eléctrico sobre la base de las pérdidas con el finde minimizar la potencia de entrada del sistema desde su contexto tecnológico y experimental.  With objetive to indicate sure areas of work with high yields in the system of electro-hydraulic workings,its is performance an identification of the subsystems of the induction motor with centrifugal pump thattransports pulp latheritic hydromixes, assisting to the variables that more participates in the energy transfer,and with this to supervise and to diagnose their efficiency in advance. A fuzzy algorithm is shown thatcorrelates the functions offered from losses based the moments equation of electric drives with thepurpose of minimizing the input power working from the experimental and technological context of thesystem.

  8. HERRAMIENTA DE LÓGICA DIFUSA PARA DEFINIR RASGOS DE LA PERSONALIDAD DE UN INDIVIDUO Fuzzy Logic Tool for Defining an Individual's Personality Traits

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    Liliana González Palacio

    2011-12-01

    Full Text Available Los métodos usados actualmente para definir la personalidad de un individuo están compuestos por un conjunto de preguntas que son analizadas por un especialista, y de acuerdo con unos parámetros establecidos se genera el diagnóstico. Este procedimiento incorpora subjetividad, y potencia la aparición de errores. Buscando evitar el sesgo en los resultados que aparece por el criterio del especialista y automatizar tareas de procesamiento de información disminuyendo tiempos y cantidad de errores, en este artículo se propone un mecanismo para definir rasgos de la personalidad de un individuo usando lógica difusa.Methods used currently to define an individual's personality consist of a set of questions which are analyzed by a specialist and, according to several parameters, a diagnosis is made. This procedure incorporates subjectivity and error emergence possibility. In the search for avoiding biased results caused by the specialist's criterion and automating information processing tasks to reduce times and amount of errors, a mechanism for defining an individual's personality traits using fuzzy logic is proposed in this article.

  9. MINERÍA DE DATOS BASADA EN LÓGICA DIFUSA PARA LA INTERPRETACIÓN DE CONSULTAS VAGAS DEPENDIENTES DEL CONTEXTO LINGÜÍSTICO

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    CLAUDIA JIMENEZ RAMIREZ

    2012-01-01

    Full Text Available En este artículo se presenta un método propuesto para que un sistema flexible de consulta-respuesta a bases de datos pueda hallar, de manera autónoma y dinámicamente, la semántica de las condiciones vagas de las consultas, explorando los datos disponibles en la base de datos y usando lógica difusa. La máquina de inferencia del sistema, según el contexto lingüístico delimitado por cada consulta, elige un modelo de conjunto difuso entre los modelos predefinidos para diferentes patrones sintácticos con los que puede encajar el texto de una consulta vaga y considerando diferentes niveles de granularidad en la categorización de los objetos. Se estima el valor de los parámetros del conjunto difuso que representa una etiqueta lingüística, usando un método no supervisado y no paramétrico en el proceso de discriminación; evitando así, la intervención de expertos. Con esto se logra que los sistemas no sólo sean adaptables, sino confiables gracias a la validez de sus respuestas.

  10. Linfoma de Hodgkin con depleción linfocítica e infiltración difusa de médula ósea

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    Fernando Carballo

    2011-04-01

    Full Text Available Se presenta el caso clínico de un paciente varón de 38 años de edad, agricultor, natural de Lamas, San Martín (selva peruana, quien desde hacía 8 meses presentaba diarreas, fiebre intermitente, dolor abdominal, pérdida ponderal y anemia severa. Aunque lúcido, a su ingreso el paciente exhibía mal estado general, palidez y adenopatías generalizadas de menos de 0,5 cm, hepatoesplenomegalia y matidez desplazable. La tomografía computarizada abdominal reveló hepatoesplenomegalia y múltiples adenopatías retroperitoneales, mesentéricas y otras. La biopsia de ganglio mostró células de Reed Sternberg, células mononucleares, eosinófilos y escasos linfocitos. La inmunohistoquímica ganglionar fue positiva para anticuerpos CD15 y CD30. La biopsia de hueso señaló fibrosis difusa, células mononucleares y marcada escasez de linfocitos. La hibridización in situ para EBV-virus de Epstein Barr fue positiva en las células neoplásicas.

  11. Hemorragia Alveolar Difusa - a propósito de um caso clínico de Hemossiderose Pulmonar Idiopática.

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    Paula Esteves

    1999-09-01

    Full Text Available RESUMO: Devido à sua raridade, a Hemorragia Alveolar Difusa (HAD é muitas vezes urn diagnóstico esquecido. Os autores apresentam uma revisião desta entidade a propósito do caso clínico de um homem de 71 anos, internado por febre, tosse seu, falência respiratória progressiva e com o diagnóstico de admissão de pneumonia da comunidade. Os exames efectuados foram compatíveis com HAD e após realização de biópsia pulmonar cirúrgica foi admitido Hemossiderose Pulmonar Idiopática como diagnóstico de exclusão.REV PORT PNEUMOL 1999; V (5: 499-505 ABSTRACT: Due to its rarity, the diffuse alveolar hemorrhage (DAH is very often a forgotten diagnosis. The authors present a revision of this entity, in relation to a clinical case of a 71 years old men, who was admitted b fever, dry cough, progressive respiratory failure and community-acquired pneumonia as admission’s diagnostic. The exams performed suggested DAH and after chirurgical pulmonary biopsy, idiopathic pulmonary hemosiderosis was established by exclusion.REV PORT PNEUMOL 1999; V (5: 499-505 Palavras chave: Hemorragia alveolar, Hemossiderose Pulmonar, Key-words: Alveolar Hemorrhage, Idiopathic Pulmonary Hemosiderosis

  12. UN MODELO DE GESTIÓN DE LA CALIDAD Y CANTIDAD DE AGUA CON LÓGICA DIFUSA GRIS PARA EL RÍO ABURRÁ

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    Luis Fernando Carvajal Serna

    2013-06-01

    Full Text Available Este artículo presenta un modelo de lógica difusa gris para la gestión de la calidad y cantidad del agua en el río Aburrá, el cual permite tener en cuenta la incertidumbre de los parámetros ambientales, que por lo general hacen que la toma de decisiones para las autoridades ambientales presente conflictos con los descargadores o contaminadores de los cuerpos de agua. La aplicación del modelo se hizo a una campaña del río Aburrá tomando como datos el caudal, el oxígeno disuelto y la demanda bioquímica de oxígeno. El modelo toma los aportes de las quebradas como los puntos de contaminación de los descargadores. Este modelo implica una optimización de acuerdo con los objetivos de la autoridad ambiental y los descargadores. El modelo se desarrolló en Matlab. Como conclusión se muestra el potencial del modelo para la gestión del agua del río y para alcanzar las metas planteadas por la autoridad ambiental.

  13. Clinical and histological challenge in the differential diagnosis of diffuse alopecia: female androgenetic alopecia, telogen effluvium and alopecia areata - part II Desafio clínico e histológico no diagnóstico diferencial de alopecia difusa: alopecia androgenética, eflúvio telógeno e alopecia areata - parte II

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    Betina Werner

    2012-12-01

    Full Text Available Diffuse alopecia is mainly caused by telogen effluvium, diffuse androgenetic alopecia (femalepattern hair loss and diffuse alopecia areata. Differential diagnosis between the three disorders may be difficult in several occasions. In this second part of our study, chronic telogen effluvium and diffuse alopecia areata are discussed in detail, including clinical, dermoscopic and histological aspects. A flowchart presents a practical and objective differential diagnostic approach to diffuse alopecia.A alopecia difusa tem como principais causas eflúvio telógeno, alopecia androgenética difusa (alopecia androgenética de padrão feminino e alopecia areata difusa. Em muitas ocasiões o diagnóstico diferencial entre as três entidades é difícil. Na segunda parte deste artigo se discute em mais detalhes as características clínicas, dermatoscópicas e histológicas do eflúvio telógeno crônico e da alopecia areata difusa. Uma maneira prática e objetiva de abordagem diagnóstica da alopecia difusa é apresentada através de um fluxograma.

  14. Selección de Carteras de Fondos de Inversión Socialmente Responsables mediante Programación por Metas con Tecnología Difusa

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    Cañal Fernández Verónica

    2009-01-01

    Full Text Available En este trabajo se presentan modelos de selección de carteras, que consideran no sólo los objetivos convencionales de optimización financiera: maximizar la riqueza al final del periodo de inversión, maximizar los beneficios netos, maximizar la riqueza relativa, etc. sino también otros objetivos asociados a los efectos sobre la sociedad de las empresas emisoras de los activos, denominados genéricamente de “responsabilidad social”.La expresión “Inversión Socialmente Responsable” (ISR describe un proceso de inversión que incorpora en todas sus etapas (búsqueda, selección y seguimiento consideraciones medio-ambientales, sociales, éticas y de gobierno corporativo de las empresas; el principal instrumento de la ISR en todos los países y, particularmente en España, son los denominados Fondos de Inversión Socialmente Responsables o Éticos. El carácter multicriterio de la selección de carteras, así como la imprecisión y vaguedad asociada a las consideraciones de responsabilidad social, nos llevan a trabajar con técnicas de programación multicriterio difusa. En el modelo de Programación Multicriterio Difusa que proponemos, los criterios financieros se han evaluado mediante el Valor Esperado Final (VEF y el Valor en Riesgo Condicionado (CVaR que se han incorporado, junto con los de responsabilidad social de la cartera, a un problema de Programación por Metas. La metodología propuesta se ha aplicado al caso español. ABSTRACT In this study a portfolio optimization framework has been developed, taking into account not only conventional financial objectives: maximize the wealth at the end of inversion period, maximize the net profits, or the maximize relative wealth, etc. but also additional ones known as “socially responsible”, associated to the effects of issuer companies over the Society. The term “Socially Responsible Investment” (SRI describes the investment process which considers environmental, social, and

  15. Mapeamento digital de atributos: granulometria e matéria orgânica do solo utilizando espectroscopia de de reflectância difusa

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    André Carnieletto Dotto

    2014-12-01

    Full Text Available A espectroscopia de reflectância difusa (ERD pode ser utilizada como alternativa para quantificação de atributos como granulometria e matéria orgânica do solo (MOS. Essa técnica pode ser opção para quantificar esses atributos em grande volume de amostras de solos, visto ser rápida, com menor custo e sem a geração de resíduos químicos. O objetivo deste estudo foi desenvolver modelos usando análise de regressão linear múltipla para predizer o teor de argila, areia, silte e MOS, utilizando dados de ERD em uma área de relevo e geologia complexa localizada na região central do Rio Grande do Sul. No estudo, foram utilizadas 303 amostras coletadas na profundidade de 0,00-0,20 m para determinar os teores de argila, areia, silte e MOS por meio da análise laboratorial e de reflectância espectral. O desempenho dos modelos de predição apresentaram bons resultados, com capacidade de explicação da variância de 77 e 72 % para areia e argila, respectivamente. Mesmo com a complexidade geológica e pedológica, os resultados evidenciaram que a técnica é promissora, sendo possível a aplicação dessa técnica para predição da granulometria e teor de MOS.

  16. Estado atual da leishmaniose cutânea difusa (LCD no Estado do Maranhão: II. aspectos epidemiológicos, clínico-evolutivos

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    Jackson Maurício Lopes Costa

    1992-06-01

    Full Text Available Os Autores fazem um estudo retrospectivo e prospectivo de 6 pacientes portadores de leishmaniose cutânea difusa, observados no Estado do Maranhão a partir de 1974. Os casos abordados são oriundos de diversas regiões do estado, observando-se em todos eles o envolvimento da leishmania (Leishmania amazonensis, sendo que 5 (84% dos pacientes apresentaram início de doença na 1ª década de vida. Em todos os pacientes envolvidos no estudo, houve relato de lesão inicial nodular única, que, posteriormente, em período variável de tempo, disseminou-se adquirindo outros aspectos. Evolutivamente apresentaram múltiplas lesões nodulares e ulceradas, intradermorreação de Montenegro(- e refratariedade aos esquemas terapêuticos utilizados até ao presente momento.The authors describe a retrospective and prospective study of 6 patients with diffuse cutaneous leishmaniasis observed in the State of Maranhão, since 1974. The patients comefromdifferentruralregions of the state and in all of them Leishmania (Leishmania amazonensis was the cause five of the patients initiated their disease in the first decade of life. All the patients first had a solitary, nodular lesion, that after a variable period of time, disseminated and acquired other aspects. Sequentially the patients presented multiple nodular and ulcerative lesions, negative leishmania skin-lests and a refractory response to the therapeutic schedules used up to the present.

  17. Predicción y simulación, mediante lógica difusa, de la temperatura de salida del arrabio en un horno alto

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    Romero, Miguel Angel

    2000-02-01

    Full Text Available This work describes the development and further validation of a model devoted to blast furnace hot metal temperature forecast, based on Fuzzy logic principles. The model employs as input variables, the control variables of an actual blast furnace: Blast volume, moisture, coal injection, oxygen addition, etc. and it yields as a result the hot metal temperature with a forecast horizon of forty minutes. As far as the variables used to develop the model have been obtained from data supplied by an actual blast furnace sensors, it is necessary to properly analyze and handle such data. Especial attention was paid to data temporal correlation, fitting by interpolation the different sampling rates. In the training stage of the model the ANFIS (Adaptive Neuro-Fuzzy Inference System and the Subtractive Clustering algorithms have been used.

    El presente artículo describe el desarrollo y posterior validación de un modelo para predecir la temperatura del arrabio de un horno alto, basado en lógica difusa. El modelo emplea, como variables de entrada, las variables de control propias del horno: caudal de viento, humedad, inyección de carbón, adición de oxígeno, etc. y obtiene, como resultado, el valor de la temperatura del arrabio producido por el horno, con un horizonte de predicción de 40 min. Las variables empleadas para el desarrollo del modelo se obtuvieron de los datos suministrados por lo sensores de un horno alto real. Fue preciso analizar y tratar adecuadamente dichos datos antes de introducirlos en el modelo. Se prestó especial atención a la correlación temporal de los datos adecuando mediante interpolación los distintos períodos de muestreo. El modelo se entrenó utilizando dos tipos de algoritmos: un sistema de inferencia neuro-difuso adaptativo (ANFIS y el Agrupamiento Sustractivo.

  18. El maltrato familiar hacia las personas mayores. Algunas reflexiones para la delimitación de un territorio de fronteras difusas

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    Jorge Gracia Ibáñez

    2011-12-01

    Full Text Available El presente trabajo tiene como objetivo contribuir a delimitar los contornos del maltrato hacia las personas mayores en el ámbito familiar una realidad caracterizada por su complejidad. Nos ocuparemos de algunas cuestiones en relación con la definición del fenómeno. Después hablaremos de los elementos esenciales del problema incluidos en su definición que nos ayuden a delimitar las difusas fronteras entre el maltrato familiar hacia los mayores con otras formas de violencia intrafamiliar. Por último planteamos una visión crítica del marco teórico sobre el fenómeno. Con este trabajo pretendemos aportar elementos a la discusión que nos permitan comprender mejor a qué nos referimos cuando hablamos de maltrato familiar contra las personas mayores y nos ayuden a diseñar respuestas eficaces.This paper’s aim is to help to delimitate the borders of elder abuse in the family, a very complex issue. We’ll raise some aspects around the definition. Then we’ll talk about the definition key elements that help us to fix the blurred line between elder abuse and other kinds of family violence. Finally we present a critical view of the theoretical framework. The goal of the paper is to provide elements to the discussion that allow us to better understand what we mean when we talk about elder abuse in the family and that help us to design efficient answers.DOWNLOAD THIS PAPER FROM SSRN: http://ssrn.com/abstract=1972183

  19. Optimización utilizando lógica difusa de dispositivo de análisis de componentes químicos de ingredientes naturales basados en el internet de las cosas IoT

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    Karen Vanessa Angulo-Sogamoso

    2017-09-01

    Full Text Available En el presente artículo, se presenta la optimización utilizando lógica difusa de un dispositivo conformado por una báscula con sensores integrados. Los cuales permiten identificar los alimentos y realizar un análisis químico, con el fin de identificar compuestos que pueden resultar nocivos para la salud de las personas. La bascula podrá ser conectada a través de bluetooth a cualquier aparato móvil, el cual utilizando una aplicación programada con la técnica de lógica difusa, le permitirá al usuario una descripción de los componentes de cualquier alimento, además de sugerir otros ingredientes que le permitan seguir una dieta más saludable y balanceada. La metodología de desarrollo se divide en tres etapas, la primera determinar las características de la bascula, luego las características del sensor y por último el desarrollo del aplicativo. La implementación del modelo está basado en la correlación de un Sistema Experto y de Lógica Difusa (Fuzzy Logic, en donde se establecen un sistema de inferencia, considerando la elección de variables de entrada y el establecimiento de tres macros que tienen evaluaciones integradas (propias de INVIMA, que posteriormente permitirán calcular los niveles de toxicidad en los alimentos. Al mismo tiempo con el fin de probar y validar el modelo, de tal modo que éste entregue resultados consistentes, se comparan resultados obtenidos en otros estudios, donde se puede evidenciar que el modelo planteado es más eficiente en un 7,57% con respecto a los demás puestos en consideración.

  20. Control automático con lógica difusa de la producción de cerveza artesanal en las etapas de maceración y cocción

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    Mariano Luján Corro

    2010-01-01

    Full Text Available Se controló automáticamente con lógica difusa, el proceso de producción de cerveza artesanal en las etapas maceración y cocción de la malta; a través de diferentes actuadores y en función del tiempo y temperatura del proceso, utilizándose LabVIEW 2009. El equipo estuvo constituido principalmente de tres recipientes de acero inoxidable de 20 L de capacidad (dosificación de agua, maceración y cocción, un recipiente adicional para el lúpulo, una tarjeta de adquisición de datos (con micro controlador PIC 16F877a, tres sensores de temperatura LM35 y 11 actuadores de tipo on/off, los cuales fueron gobernados por un total de 47 reglas difusas tipo Mandani, con funciones de membresía trapezoidales, empleando para la defusificación el método del centro de área. Se controló adecuadamente en sus etapas de maceración y cocción, los actuadores: electroválvulas (5, bombas (2, calefactores (3 y un agitador; empleando un tiempo aproximado de 4 horas. La cerveza obtenida mediante el control automático con lógica difusa en las etapas de maceración y cocción, tuvo las siguientes características: densidad de 0.98 g/cm3; pH de 3.9; acidez total expresada como ácido láctico de 0.87%, grado alcohólico de 6.2 ºGL y porcentaje de CO2 de 0.91% p/v.

  1. Sistema de información basada en técnicas de seguridad difusa optimice recursos en el proceso de selección de postulantes a la UNA - Puno

    OpenAIRE

    Pérez Quispe, Samuel Donato

    2005-01-01

    El "Sistema de Información Basado en Técnicas de Seguridad Difusa que Optimice Recursos en el Proceso de Selección de Postulantes a la UNA-Puno", fue desarrollado en la Universidad Nacional del Altiplano de la ciudad de Puno. Con el objeto de proponer un sistema que evite los tiempos de espera en los procesos de inscripción y optimizar recursos para el proceso de selección de postulantes, empleando un conjunto de procedimientos para manejar la información precisa y/o vaga propuestos por la ló...

  2. Modelo de apoyo a la comercialización de electricidad usando lógica difusa y aprendizaje de máquina./ A Support model for electricity trade using fuzzy logic and machine learning.

    OpenAIRE

    Moreno Cadavid, Julián; Ovalle Carranza, Demetrio Arturo

    2009-01-01

    El trabajo que se describe en este artículo explora la posibilidad de emplear un modelo basado en la lógica difusa y en el aprendizaje de máquina para que los agentes comercializadores del mercado eléctrico Colombiano, o de alguno con características similares, maximicen sus utilidades de acuerdo a su perfil de riesgo. El modelo consta de dos partes, la primera es un sistema experto difuso que les brinda a estos agentes una recomendación respecto a la estrategia comercial que deben emplear...

  3. Relación entre atrofia cortical difusa y desempeño cognitivo : estudio en población mayor de 60 años en un hospital universitario en la ciudad de Bogotá

    OpenAIRE

    Cogollos, Jenny Natalia; Piedrahita, Paula Viviana; Urquijo, Paula Andrea

    2016-01-01

    El presente trabajo tuvo como objetivo evaluar la existencia de la relación entre la atrofia cortical difusa objetivada por neuroimagenes cerebrales y desempeños cognitivos determinados mediante la aplicación de pruebas neuropsicológicas que evalúan memoria de trabajo, razonamiento simbólico verbal y memoria anterógrada declarativa. Participaron 114 sujetos reclutados en el Hospital Universitario Mayor Méderi de la ciudad de Bogotá mediante muestreo de conveniencia. Los resultados arrojaron...

  4. HIPEROSTOSIS ESQUELÉTICA DIFUSA IDIOPÁTICA EN UNA COLECCIÓN OSTEOLÓGICA CONTEMPORÁNEA (LA PLATA, BUENOS AIRES, ARGENTINA) / Difusse Idiopathic Skeletal Hyperostosis in a contemporary osteological collection (La Plata, Buenos Aires, Argentina)

    OpenAIRE

    Marcos Plischuk; Ana María Inda

    2015-01-01

    La Hiperostosis Esquelética Difusa Idiopática (DISH) es una enfermedad caracterizada por provocar anquilosis entre cuerpos vertebrales, sumada a la osificación masiva de ligamentos y tendones en el resto del sistema esqueletal. El objetivo del presente trabajo es establecer la prevalencia de DISH en una colección osteológica documentada contemporánea y discutir rasgos patognomónicos y factores de riesgo asociados. A fin de establecer un diagnóstico se relevó, en 100 individuos adultos, la for...

  5. Programación lógica difusa para la gestión flexible de documentos XML. (Fuzzy Logic Programming for the Flexible Management of XML Documents)

    OpenAIRE

    Luna Tedesqui, Alejandro

    2016-01-01

    Esta tesis presenta una extensión del popular lenguaje XPath, que ofrece respuestas una lista de respuestas ordenadas a una consulta flexible aprovechando las variantes difusas de los operadores and, or y avg para las condiciones XPath, así como dos restricciones estructurales, llamadas down y deep, para el que se asocia un cierto grado de relevancia. En la práctica, este grado es muy bajo para algunas respuestas obtenidas con la consulta original, y por lo tanto, no deberian ser calculadas, ...

  6. Biological Age Predictors

    Directory of Open Access Journals (Sweden)

    Juulia Jylhävä

    2017-07-01

    Full Text Available The search for reliable indicators of biological age, rather than chronological age, has been ongoing for over three decades, and until recently, largely without success. Advances in the fields of molecular biology have increased the variety of potential candidate biomarkers that may be considered as biological age predictors. In this review, we summarize current state-of-the-art findings considering six potential types of biological age predictors: epigenetic clocks, telomere length, transcriptomic predictors, proteomic predictors, metabolomics-based predictors, and composite biomarker predictors. Promising developments consider multiple combinations of these various types of predictors, which may shed light on the aging process and provide further understanding of what contributes to healthy aging. Thus far, the most promising, new biological age predictor is the epigenetic clock; however its true value as a biomarker of aging requires longitudinal confirmation.

  7. Modelo de cálculo de las emisiones difusas de gases de efecto invernadero procedentes del transporte. Análisis según variables de diseño urbanístico

    Directory of Open Access Journals (Sweden)

    Sergio Zubelzu-Mínguez

    2014-01-01

    Full Text Available Entre las medidas más relevantes para frenar el calentamiento global se encuentra el control de las denominadas emisiones difusas, siendo las emisiones derivadas de las fuentes móviles una de las componentes más importantes dentro de tales emisiones. En el presente trabajo se han estudiado las emisiones difusas en el marco del diseño urbanístico y se han desarrollado métodos para el cálculo de las emisiones derivadas del tráfico rodado en función de parámetros de diseño urbanístico; como los usos del suelo, la longitud de viales o la edificabilidad, obteniendo así expresiones no lineales que permiten predecir los niveles de emisiones para diferentes usos. Los resultados muestran coeficientes de determinación de 0,644 para el uso residencial, 0,591 para el uso industrial, 0,592 para el uso terciario y 0,591 para los equipamientos, cifras de las que se deduce una mayor capacidad explicativa del modelo predictivo de las emisiones para el uso residencial.

  8. Proposta de um Modelo de Medição de Desempenho Logístico Apoiado pela Lógica Difusa: O Caso de uma Indústria de Motores

    Directory of Open Access Journals (Sweden)

    Ana Maria Pérez Fernandez

    2009-06-01

    Full Text Available Diante da complexidade que caracteriza o ambiente empresarial, a medição de desempenho surge como principal aliada no processo de gestão. Dentre os diversos modelos conhecidos para mensuração do desempenho, uma vulnerabilidade identificada é a relação linear entre seus componentes, que não reflete a interação com um ambiente mutável. A utilização da lógica difusa foi considerada um mecanismo viável para compensar essa linearidade, revelando as prioridades que a organização precisa focar. Nesse contexto, o presente estudo se propôs a desenvolver um modelo de mensuração do desempenho logístico, apoiado pela lógica difusa. O novo modelo foi estruturado em formato de matriz, contendo os três macro processos logísticos e englobando sete dimensões de desempenho. Os elementos analisados foram submetidos ao modelo de alinhamento estratégico proposto por Espín e Vanti (2005, o que resultou em um ranking por grau de importância.

  9. Optic coherence tomography in a patient with diffuse unilateral subacute neuroretinitis Tomografia de coerência óptica em neuretinite subaguda difusa unilateral

    Directory of Open Access Journals (Sweden)

    Alexandre Henrique Gomes

    2009-04-01

    Full Text Available PURPOSE: To measure retinal nervous fiber layer (RNFL thickness using OCT3 (Carl-Zeiss in patients with diffuse unilateral subacute neuroretinitis (DUSN with or without live worm and correlate it with visual acuity. METHODS: RNFL thickness, using RNFL thickness 3.4 program and best corrected visual acuity were measured in patients with DUSN between January 2005 and December 2006. RESULTS: Thirty-eight patients, aged 9 - 42 years were selected, of whom 20 had live worm. Mean RNFL was 71.55 ± 27.26 in the DUSN eye and 103.07 ± 20.66 in the contralateral eye (pOBJETIVO: Avaliar o uso do OCT3 (Carl-Zeiss para medir a espessura da camada de fibras nervosas em pacientes com neuroretinite unilateral subaguda difusa (DUSN e correlacionar com a acuidade visual. MÉTODOS: Foi medido a espessura da camada de fibras nervosas, utilizando programa "RNFL thickness 3.4" e a melhor acuidade visual de pacientes com DUSN entre janeiro de 2005 e dezembro 2006. RESULTADOS: Trinta e oito pacientes, com idade entre 9-42 anos foram selecionados para este estudo, sendo que 20 casos apresentavam larva viva localizada. A média da RNFL foi 71,55 ± 27,26 nos olhos com DUSN e 103,07 ± 20,66 nos olhos contralaterais (p<0,001. Correlação de Pearson entre a acuidade visual e a espessura da camada de fibras nervosas foi r= -0,522 (p<0,001 nos olhos com DUSN e r= -0,097 (p=0,509 nos olhos contralaterais. CONCLUSÃO: A espessura da camada de fibras nervosas de pacientes com DUSN apresenta uma correlação diretamente proporcional com a acuidade visual. Novos estudos são necessários para reforçar a correlação entre a acuidade visual e a espessura da camada de fibras nervosas nos pacientes com DUSN com a finalidade de acompanhar os pacientes após o tratamento.

  10. Distúrbio cognitivo transitório associado a atividade epileptiforme generalizada ou difusa durante o eletrencefalograma Transient cognitive impairment during generalized or diffuse epileptiform EEG discharges

    Directory of Open Access Journals (Sweden)

    Lineu Corrêa Fonseca

    2005-09-01

    Full Text Available Atividade epileptiforme (AE no eletrencefalograma (EEG é achado comum entre as crises epilépticas e, menos freqüentemente, em outras condições clínicas. AE "subclínica" pode estar acompanhada de distúrbio cognitivo transitório (DCT. Foram estudados 30 pacientes (27 com epilepsia com AE generalizada ou difusa, freqüente, em EEG inicial. Em EEG subseqüente, foi avaliado o desempenho em testes de classificação visual de animais e objetos, discriminação de cores, memória verbal e auditiva, reconhecimento de padrões e estimação de tempo. Foi comparado, estatisticamente, o número de respostas corretas ou incorretas durante a AE e fora dela. DCT foi caracterizado em 43,3% dos casos. Em 23,3% a AE foi rara, não permitindo avaliação de DCT. Assim, pôde ser caracterizado comprometimento transitório de atividades cognitivas durante AE até então considerada "subclínica". Há necessidade de pesquisar a importância desse fator em pacientes com comprometimento cognitivo e de caracterizar as situações de eventuais benefícios na medicação dirigida à AE.Epileptiform EEG discharges (EED are a frequent finding in people with epilepsy, and may occur in other clinical conditions. Formal testing during EEG recording may demonstrate transitory cognitive impairment (TCI. Thirty patients (27 with epilepsy with generalized or diffuse EED on a previous examination were studied. The interaction between EED and cognitive tasks was evaluated on subsequent EEG. The numbers of correct or incorrect answers were compared with the occurrence or absence of EED. Results were analyzed by non parametric tests. TCI was characterized in 43.3% of the patients. In 23.3% the EED were rare and it was not possible to evaluate the occurrence of TCI. The findings confirm that otherwise subclinical EED may be accompanied by TCI. There is a need of researchs to evaluate the relevance of TCI and to determine when EED should be treated.

  11. Irradiação global, direta e difusa, para a região de Cascavel, Estado do Paraná = Global, direct and diffuse irradiation in the region of Cascavel, Paraná State

    Directory of Open Access Journals (Sweden)

    Patricia Aparecida de Oliveira Drechmer

    2006-01-01

    Full Text Available O presente trabalho apresenta um estudo sobre os níveis das irradiações global, direta e difusa incidentes na superfície terrestre, a irradiação incidente no topo da atmosfera e a insolação relativa mensal, para a cidade de Cascavel-PR. As componentes da radiação solar foram monitoradas entre janeiro de 2001 e fevereiro de 2003 na Estação Experimental Agrometeorológica da Unioeste, Cascavel, Estado do Paraná. Na medição da radiação global foi utilizado um piranômetro KIPP & ZONEN-CM3 e para medir a componente direta foiutilizado um pireliômetro EPPLEY-NIP acoplado a um rastreador solar. A radiação difusa foi calculada pela diferença entre as radiações global e direta. Os níveis médios mensais das irradiações global, direta e difusa, foram respectivamente, 51,8%, 31,7% e 20,17% dairradiação incidente no topo da atmosfera. O índice de insolação relativa apresentou valor máximo em agosto (61,43% e mínimo em fevereiro (34,35%, períodos caracterizados respectivamente por dias de céu limpo e nublados no hemisfério sul.This paper reports a study about the diffuse, direct and global radiation levels on surface of earth, the irradiation over the top of atmosphere and the monthly relative sunstroke in the city of Cascavel, State of Paraná, southern Brazil. The solar radiation components were monitored from January, 2001 to February, 2003 at Estação Experimental Agrometeorológica of Unioeste, Cascavel, Parana State. Global radiation was monitored by a pyranometer KIPP & ZONEN-CM3 and direct radiation was monitored by a pyrheliometer EPPLEY-NIP coupled to a solar tracer. The diffuse radiation wasmonitored through the difference between global and direct radiation. Monthly average levels of global, direct and diffuse irradiations were 51.8%, 31.7% and 20.17% of the irradiation in the top of atmosphere. The relative isolation index showed the maximum value in August (61.43% and the minimum in February (34.35%. These

  12. Dor musculoesquelética idiopática difusa na infância e na adolescência Diffuse idiopathic musculoskeletal pain in childhood and adolescence

    Directory of Open Access Journals (Sweden)

    Juliana Molina

    2011-06-01

    Full Text Available OBJETIVO: A dor musculoesquelética difusa idiopática persistente ou intermitente é definida pela presença de dor com duração de três meses ou mais, sem etiologia aparente, e tem acometido cada vez mais crianças e adolescentes. Este estudo objetivou relatar dois pacientes com dor incapacitante submetidos à abordagem e ao tratamento multiprofissional, além de discutir o tratamento conduzido, por meio de revisão da literatura atual. DESCRIÇÃO DO CASO: O primeiro caso é de uma menina com nove anos de idade, com histórico de cefaleia, dor mus-culoesquelética e dor abdominal há dois anos, período no qual apresentou quatro episódios de ausência de marcha, sem causas orgânicas aparentes. O segundo caso refere-se a uma adolescente de 14 anos com lombalgia diária há 14 meses de forte intensidade, com irradiação para membros inferiores, acompanhada de cefaleia, fadiga e adinamia. Ambas apresentavam exame físico normal, exceto pela presença de alodínia (caso 1 e pontos de fibromialgia (caso 2; além de exames subsidiários normais, sem justificativas orgânicas para as queixas dolorosas. Houve melhora clínica significativa após diagnóstico e tratamento diferencial por meio de abordagem multiprofissional (médico, psicólogo, fisioterapeuta e nutricionista, com retomada das atividades regulares pelas pacientes. COMENTÁRIOS: A atuação integrada da equipe em um curto período de tempo proporcionou às pacientes a retomada de suas atividades normais, visto que fatores emocionais, físicos e nutricionais relacionam-se à dor.OBJECTIVE: Persistent or intermittent diffuse idiopathic musculoskeletal pain is defined by the presence of pain over three months with no apparent etiology. The diagnosis of this condition in children and adolescents is increasing. The objective of this study was to report the cases of two patients with disabling pain that received multidiscipli-nary treatment and to review the current literature about this

  13. Fuzzy Logic: An Instrument
for the Evaluation of Project Status || La lógica difusa: un instrumento para la evaluación del estado del proyecto

    Directory of Open Access Journals (Sweden)

    Doskocil, Radek

    2015-06-01

    Full Text Available This article considers the use of fuzzy logic to support the evaluation of project status. A brief description of fuzzy set theory, fuzzy logic and the process of calculation is given. The major goal of this paper is to present an expert decision-making fuzzy model for evaluating project status. The model results from the application of the Fuzzy Logic Toolbox. This fuzzy model is based on two basic indices, schedule performance index (SPI and cost performance index (CPI, of earned value management (EVM. The ad- vantage of the fuzzy model is the ability to transform the input indices SPI and CPI into linguistic variables, as well as linguistic evaluation of over- all project status (output. With this approach it is possible to simulate the risk and uncertainty that are always associated with real projects. The scheme of the model, rule block, attributes and their membership functions are mentioned in a case study. The case study contains real data on the development of values of indices SPI and CPI for one project in the field of IT (data file. The analysed project ran from March 2012 to July 2012. The indices SPI and CPI were obtained from control project milestones. There are 5 control milestones in total. The parameters of the model are adjusted on the basis of the data file for each of the variables. The use of fuzzy logic is a particular advantage in decision-making processes where description by algorithms is extremely difficult and criteria are multiplied. || El artículo trata sobre el uso de la lógica difusa como soporte para la evaluación del estado de un proyecto. Se describe brevemente la teoría de conjuntos difusos, la lógica difusa y el proceso de cálculo. El objetivo principal de este trabajo es presentar un modelo difuso para la toma de decisiones por parte de expertos para la evaluación del estado de un proyecto. El modelo es resultado de aplicar la librería de lógica difusa de MATLAB. Este modelo difuso se basa en dos

  14. Aplicación del proceso de análisis jerárquico extendido con lógica difusa para la selección de software para logística

    OpenAIRE

    Zapata Cortés, Julián Andrés; Arango Serna, Martín Darío; Adarme Jaimes, Wilson

    2012-01-01

    Este artículo presenta la aplicación del proceso de análisis jerárquico – Método AHP extendido con lógica difusa en la selección de una herramienta de software para logítica tipo WMS (Warehouse Management System) en un astillero Colombiano. El método AHP ha sido utilizado ampliamente para resolver problemas de análisis de decisión en donde es necesario involucrar un alto número de factores y variables tanto cualitativas como cuantitativas, sin embargo, la mayor critica a este método es que el...

  15. Un modelo de gestión de la calidad y cantidad de agua con lógica difusa gris para el Río Aburrá.

    OpenAIRE

    Carvajal Serna, Luis Fernando

    2013-01-01

    Este artículo presenta un modelo de lógica difusa gris para la gestión de la calidad y cantidad del agua en el río Aburrá, el cual permite tener en cuenta la incertidumbre de los parámetros ambientales, que por lo general hacen que la toma de decisiones para las autoridades ambientales presente conflictos con los descargadores o contaminadores de los cuerpos de agua. La aplicación del modelo se hizo a una campaña del río Aburrá tomando como datos el caudal, el oxígeno disuelto y la demanda bi...

  16. RS-WebPredictor

    DEFF Research Database (Denmark)

    Zaretzki, J.; Bergeron, C.; Huang, T.-W.

    2013-01-01

    Regioselectivity-WebPredictor (RS-WebPredictor) is a server that predicts isozyme-specific cytochrome P450 (CYP)-mediated sites of metabolism (SOMs) on drug-like molecules. Predictions may be made for the promiscuous 2C9, 2D6 and 3A4 CYP isozymes, as well as CYPs 1A2, 2A6, 2B6, 2C8, 2C19 and 2E1....... RS-WebPredictor is the first freely accessible server that predicts the regioselectivity of the last six isozymes. Server execution time is fast, taking on average 2s to encode a submitted molecule and 1s to apply a given model, allowing for high-throughput use in lead optimization projects.......Availability: RS-WebPredictor is accessible for free use at http://reccr.chem.rpi.edu/ Software/RS-WebPredictor....

  17. Presentación atípica de piomiositis tropical difusa de psoas por Staphylococcus aureus meticilino resistente Atypical presentation of diffuse tropical pyomiositis of the psoas due to methicillin resistant Staphylococcus aureus

    Directory of Open Access Journals (Sweden)

    Ray Ticse

    2012-03-01

    Full Text Available La piomiositis tropical difusa primaria es una enfermedad de presentación infrecuente en nuestro medio, con pocos casos asociados a Staphylococcus aureus meticilino resistente, adquirido en la comunidad (MRSA-AC. Se presenta el caso de un paciente de 70 años, con tratamiento irregular para diabetes mellitus tipo 2, que fue hospitalizado por presentar un cuadro de diez días de evolución, con dolor lumbar irradiado a miembro inferior izquierdo, fiebre y flexión forzada de la cadera derecha por dolor a la movilización. El diagnóstico de piomiositis difusa de ambos psoas se realizó con resonancia magnética. Del cultivo de una colección paravertebral posterior se aisló Staphylococcus aureus resistente a oxacilina, penicilina y dicloxacilina.Diffuse tropical primary pyomyositis is an infrequent entity in our country, with few cases associated to communityacquired Methicillin- resistant Staphylococcus aureus. There are no reported cases of Community-Acquired Methicillin- Resistant Staphylococcus aureus (CA- MRSA in Peru. We present the case of a 70 year old male with a previous diagnosis of type 2 diabetes mellitus, receiving irregular treatment, who was admitted to the hospital with a history of 10 days of low back pain radiating to the left leg, fever and forced flexion of the right hip due to pain during movement. The diagnosis of diffuse pyomyositis of both psoas muscles was performed with MRI and culture of a posterior paravertebral collection, from which Staphylococcus aureus resistant to oxacillin, penicillin and dicloxacillin was isolated.

  18. Biological Age Predictors

    OpenAIRE

    Jylh?v?, Juulia; Pedersen, Nancy L.; H?gg, Sara

    2017-01-01

    The search for reliable indicators of biological age, rather than chronological age, has been ongoing for over three decades, and until recently, largely without success. Advances in the fields of molecular biology have increased the variety of potential candidate biomarkers that may be considered as biological age predictors. In this review, we summarize current state-of-the-art findings considering six potential types of biological age predictors: epigenetic clocks, telomere length, transcr...

  19. APLICACIÓN DEL MÉTODO CYBERSIN CON LÓGICA DIFUSA EN UN SISTEMA DE CONTROL DE GESTIÓN CYBERNETIC AND FUZZY LOGIC SYSTEM APPLICATION IN MANAGEMENT CONTROL SYSTEM

    Directory of Open Access Journals (Sweden)

    Miguel Rojas

    2012-06-01

    Full Text Available El modelo propuesto plantea un sistema de control para los ejecutivos de ventas de las Administradoras de Fondos de Pensiones (AFP. Con ayuda del método Cybersin se calcularon los indicadores: desempeño, logro y latencia que, a su vez, componen las variables, ventas y acompañamiento. Variables valiosas en el funcionamiento de este tipo de organizaciones y usadas en la medición del desempeño de los ejecutivos de ventas. Se construyó un sistema de inferencia difusa con el apoyo del software MATLAB, para simular la productividad de los ejecutivos; este considera las posibles combinaciones de las variables de entrada y compara el resultado con las metas establecidas por la organización.The proposed model presents a control system for sales executives of Pension Fund Administrators. Using the Cybersin method, performance, achievements and latency indicators were calculated. Based on this indicators variables sales and support were defined, which are valuable variables in the functioning of these type of organizations and are used in measuring the performance of sales executives. A fuzzy inference system was desingned with the help of MATLAB software to simulate the productivity of executives, using possible combinations of input variables to finally compare the result with stablished targets of the organization.

  20. Panbronquiolite difusa em paciente do nordeste brasileiro sem ascendência asiática doi: 10.20513/2447-6595.2016v56n1p55-59

    Directory of Open Access Journals (Sweden)

    Glaydson Teixeira Oliveira

    2016-06-01

    Full Text Available A panbronquiolite difusa é uma doença inflamatória, crônica e idiopática dos bronquíolos respiratórios, raramente observada em ocidentais sem ascendência asiática. O achado histopatológico principal é o acúmulo de macrófagos xantomatosos nas paredes dos bronquíolos respiratórios e a apresentação radiológica típica é o padrão de “árvore em brotamento”, difuso. Descreve-se um incomum caso da doença em uma paciente de 21 anos, natural de Quixadá no Ceará, sem ascendência asiática ou histórico de viagem para países endêmicos. Em áreas não endêmicas e em casos com apresentação clínica, radiológica e laboratorial atípicas, o diagnóstico pode se tornar muito desafiador, especialmente tendo em vista a elevada prevalência de doenças das vias aéreas associadas à bronquiolite e bronquiectasias.

  1. Uso de lógica difusa para la administración de un sistema disipador de energía en estructuras compuesto por amortiguadores magnetoreológicos

    Directory of Open Access Journals (Sweden)

    Luis Augusto Lara-Valencia

    2015-01-01

    Full Text Available Los amortiguadores magnetoreológicos son mecanismos disipadores de energía que desarrollan fuerzas de control variables útiles para la administración de sistemas estructurales sujetos a excitaciones dinámicas. Estos dispositivos son generalmente regidos po r algoritmos complejos y so¿sticados que necesitan de un gran poder de procesamiento. En este artículo se plantea el uso de un algoritmo de control fundamentado en lógica difusa, el cual realiza ajustes en la señal de comando de amortiguadores magnetorreológicos de forma simple y rápida basado en el conocimiento heurístico que se tenga de la estructura. A partir de un ejemplo numérico desarrollado, fue posible determinar que el proyecto de control propuesto se mostró su¿cientemente competente y con¿able para administrar fuerzas de control, consiguiendo reducciones de picos de respuesta hasta de un 68%.

  2. Personality predictors of happiness.

    Science.gov (United States)

    Neto, F

    2001-06-01

    The Oxford Happiness Inventory and a battery of personality measures were completed by 171 subjects. The results showed predicted positive correlations for happiness with satisfaction with life, self-esteem, and sociability and negative correlations of happiness with embarrassability, loneliness, shyness, and social anxiety. Four predictors (satisfaction with life, shyness, loneliness, and sociability) accounted for 58% of the variance in happiness scores. These results support previous research as well as validate the Portuguese version of the happiness inventory.

  3. Predictors of maternal responsiveness.

    Science.gov (United States)

    Drake, Emily E; Humenick, Sharron S; Amankwaa, Linda; Younger, Janet; Roux, Gayle

    2007-01-01

    To explore maternal responsiveness in the first 2 to 4 months after delivery and to evaluate potential predictors of maternal responsiveness, including infant feeding, maternal characteristics, and demographic factors such as age, socioeconomic status, and educational level. A cross-sectional survey design was used to assess the variables of maternal responsiveness, feeding patterns, and maternal characteristics in a convenience sample of 177 mothers in the first 2 to 4 months after delivery. The 60-item self-report instrument included scales to measure maternal responsiveness, self-esteem, and satisfaction with life as well as infant feeding questions and sociodemographic items. An online data-collection strategy was used, resulting in participants from 41 U.S. states. Multiple regression analysis showed that satisfaction with life, self-esteem, and number of children, but not breastfeeding, explained a significant portion of the variance in self-reported maternal responsiveness scores. In this analysis, sociodemographic variables such as age, education, income, and work status showed little or no relationship to maternal responsiveness scores. This study provides additional information about patterns of maternal behavior in the transition to motherhood and some of the variables that influence that transition. Satisfaction with life was a new predictor of maternal responsiveness. However, with only 15% of the variance explained by the predictors in this study, a large portion of the variance in maternal responsiveness remains unexplained. Further research in this area is needed.

  4. APLICACIÓN DE LA LÓGICA DIFUSA COMPENSATORIA EN LA SELECCIÓN DE OFERTAS DE ARMADURAS ÓPTICAS

    Directory of Open Access Journals (Sweden)

    Rafael A. Espín Andrade

    2010-11-01

    del criterio de expertos y de la Norma ISO 12870: 1998, se obtuvo un modelo basado en Lógica Difusa Compensatoria (LDC, que permite evaluar la calidad de las armaduras ópticas e incluso establecer un orden de importancia a partir de cuán cierto es que la armadura X tiene buena calidad.

     

    For making the right decisions when it comes to buying, it is necessary to assess the suppliers, but the organization has not stated a method to do so, causing high levels of rejected products for quality specifications non-fulfilment. The main goal is to build a model to assess the quality of optic armours. From the experts criterion and the Norma ISO 12870: 1998, a CFL-based model was obtained which allows assessing the quality of armours and even to establish an order concerning the quality.

  5. Fusión de indicadores biométricos y psicológicos mediante lógica difusa para la estimación del riesgo de trastornos del comportamiento alimentario

    Directory of Open Access Journals (Sweden)

    Triviño, Gracián

    2005-01-01

    Full Text Available Determinados trabajos han puesto de relieve la importancia que los factores psicológicos tienen sobre el desarrollo de los trastornos del comportamiento alimentario (TCA y la malnutrición. Para su detección se utilizan recursos tales como cuestionarios psicométricos que valoran los hábitos de alimentación, test, basados en siluetas o modelos anatómicos, orientados a evaluar la imagen que el sujeto tiene de si mismo. Se ha comprobado que algunos de estos criterios diagnósticos están sujetos a incertidumbre debida al proceso de obtención del dato y a la importancia relativa que tiene cada uno en el cómputo total del parámetro que valora el nivel de riesgo buscado. En este trabajo se presenta un método basado en la utilización de Lógica Difusa para fusionar la información proporcionada por estas variables de pesos e importancia relativa y que contienen cierta cantidad de incertidumbre. Para ello se utilizan etiquetas lingüísticas para caracterizar sus posibles valores, y reglas de inferencia para relacionar unos parámetros con otros. El resultado obtenido es el prototipo de una herramienta informática que es útil para el diagnóstico de esta patología pero que tiene la importante ventaja de que el algoritmo utilizado para componer la información es fácil de comprender y por lo tanto fácil de ajustar.

  6. Modelos de dupla camada difusa de Gouy-Chapman e Stern aplicados a latossolos ácricos paulistas Gouy-chapman and Stern diffuse double layer models applied to acric oxisols from the state São Paulo - Brazil

    Directory of Open Access Journals (Sweden)

    L.R.F. Alleoni

    1994-08-01

    Full Text Available Modelos teóricos da dupla camada difusa de Gouy-Chapman e de Stern foram aplicados a um latossolo variação Una ácrico, de Guaira e a dois latossolos roxos ácricos, localizados em Ribeirão Preto e Guaíra, cidades ao norte do Estado de São Paulo, onde solos com caráter ácrico ocupam vasta área nas quais são cultivadas várias culturas de interesse econômico. Na concentração mais elevada do eletrólito suporte (KCl 0,1N, os dados obtidos em laboratório adaptaram-se melhor ao modelo de Stern. Entretanto, nas menores concentrações (KCl 0,01 e 0,001N, correspondentes a valores mais comuns encontrados em solos altamente intemperizados, o modelo de Gouy-Chapman representou melhor a variação da densidade superficial de carga com o potencial elétrico das amostras estudadas.Theoretical models of Gouy-Chapman and Stern, referred to diffuse double layer, were applied to three acric Oxisols, two named dusky red latosol and one Una variant latosol, from the São Paulo State - Brazil. Samples were collected in Ribeirão Preto and Guaira, regions of large occurrence of these soils, supporting many economic crops. In the highest concentration of the electrolyte (KC1 0.1N, the obtained values were better related to the Stern model. On the other hand, in more dilluted solutions (KC1 0.01 and 0.001N, corresponding to more usual ionic strenght of highly weathered soils, the variation of surface charge density of the samples with electric potential was in better agreement with the Gouy-Chapman theory.

  7. Vasculite e padrão de panbronquiolite difusa no lúpus eritematoso sistémico: Caso clínico Vasculitis and diffuse panbronchiolitis-like in systemic lupus erythematosus: Case report

    Directory of Open Access Journals (Sweden)

    Lina Carvalho

    2007-03-01

    Full Text Available O compromisso visceral pelo lúpus eritematoso sistémico (LES estende-se para além do rim e da pele. Lesões pleuropulmonares são reconhecidas e as formas de destruição alveolar difusa e hemorragia alveolar são as mais difíceis de controlar. O compromisso pulmonar na evolução clínica do LES difere nas crianças e nos adultos, tanto nos padrões morfológicos como nas apresentações clínicas, dependendo da imunoincompetência do doente e do tratamento instituído. Um rapaz de 16 anos apresentou um quadro clínico de astenia, cansaço e pequenos gânglios linfáticos cervicais bilaterais e não dolorosos, entendido como infecção pelo EBV, com serologia concordante (IgG e IgM de EBV e EBNA positivos. Os sintomas persistiram durante oito meses e progressivamente instalou-se eritema nasal e malar, discreto e descamativo e também febre persistente, dispneia e estertores basais à auscultação. Foram efectuadas biópsia de um gânglio linfático cervical e biópsia cirúrgica pulmonar. Observou-se hiperplasia folicular no gânglio linfático e ausência de células LMP1 (EBV positivas. Na biópsia pulmonar eram evidentes fenómenos de bronquiolite e vasculite à custa de células macrofágicas identificadas pelo marcador CD68. Os macrófagos dissociavam as paredes vasculares e bronquiolares e também estavam presentes nos septos interalveolares peribroncovasculares e nos espaços alveolares, observando-se assim um padrão de panbronquiolite difusa e vasculite. Não se identificaram células LMP1 (EBV positivas. O padrão pulmonar micronodular bilateral observado na TAC resolveu com corticoterapia. O diagnóstico de LES foi confirmado pela positividade dos anticorpos ANA, anti-dsDNA, anti-nDNA e anti-histonas. Este é o primeiro caso divulgado na literatura médica de compromisso pulmonar sob a forma de vasculite e padão de panbronquiolite difusa como primeira manifestação clínica do lúpus eritematosos sist

  8. Clinical and histological challenge in the differential diagnosis of diffuse alopecia: female androgenetic alopecia, telogen effluvium and alopecia areata - part I Desafio clínico e histológico no diagnóstico diferencial de alopecia difusa: alopecia androgenética, eflúvio telógeno e alopecia areata - parte I

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    Betina Werner

    2012-10-01

    Full Text Available Diffuse androgenetic alopecia (female pattern hair loss, telogen effluvium, and diffuse alopecia areata may have similar clinical manifestations. Subtle details on physical examination and dermoscopy of the scalp may help to identify those disorders. The authors present a practical discussion on how to approach the patient with diffuse alopecia, considering clinical history, physical examination, and dermoscopic findings. If the diagnosis remains unclear after a careful analysis of the clinical signs, a scalp biopsy may help to distinguish between the three diseases. In this first part of our study, an objective review of female androgenetic alopecia is presented and the most important histological changes are discussed.Alopecia androgenética difusa (alopecia de padrão feminino, eflúvio telógeno e alopecia areata difusa podem ter apresentações clínicas similares. Detalhes sutis no exame físico e na dermatoscopia do couro cabeludo podem ser úteis no diagnóstico diferencial e interferir na conduta e resultados terapêuticos. Os autores apresentam uma discussão prática de como abordar a paciente com alopecia difusa considerando dados da história clínica, exame físico e dermatoscópico. Quando a dúvida persistir após uma análise cuidadosa dos aspectos clínicos, uma biópsia de couro cabeludo pode permitir a distinção entre as três doenças. Nesta primeira parte, a alopecia androgenética de padrão feminino é abordada em maior detalhe e se faz uma revisão objetiva das principais alterações microscópicas observadas.

  9. Retinal nerve fiber layer atrophy as relevant feature for diffuse unilateral subacute neuroretinitis (DUSN: case series Atrofia das camadas de fibras nervosas da retina como característica relevante na neurorretinite subaguda difusa unilateral (DUSN: série de casos

    Directory of Open Access Journals (Sweden)

    Antonio Marcelo Barbante Casella

    2010-04-01

    Full Text Available PURPOSE: To report the findings of optical coherence tomography (OCT in three cases of diffuse unilateral subacute neuroretinitis (DUSN. METHODS: Three young patients with confirmed diagnosis of diffuse unilateral subacute neuroretinitis were followed-up using Stratus® OCT. RESULTS: Optical coherence tomography findings included retinal nerve fiber layer atrophy and focal edema where the worm was initially lodged. In two patients we could identify the worm by optical coherence tomography as an area of hiper-reflectivity. The worms were laser photocoagulated and post-treatment optical coherence tomography scanning revealed improvement of edema, nerve fiber layer thinning and a retinal hyper-reflectivity where laser had been applied. CONCLUSION: The main finding reported here is the potential of optical coherence tomography in detecting the presence of retinal nerve fiber layer atrophy and focal retinal edema in areas affected by the worm. Optical coherence tomography can be used to distinguish diffuse unilateral subacute neuroretinitis from other mimicking diseases like punctate outer retinitis, when there are no retinal fiber layer atrophy.OBJETIVO: Demonstrar os achados da tomografia de coerência óptica em três casos de neurorretinite subaguda difusa unilateral (DUSN. MÉTODOS: Os pacientes com diagnóstico confirmado de neurorretinite subaguda difusa unilateral realizaram seguimento pré e pós-tratamento por meio da tomografia de coerência óptica, Stratus® OCT. RESULTADOS: Os achados marcantes da tomografia de coerência óptica foram a atrofia das camadas de fibras nervosas da retina e edema da retina localizado em áreas nas quais a larva esteve. Em dois pacientes pôde-se localizar a larva no espaço sub-retiniano por meio da tomografia de coerência óptica, que se traduziu por pequena área densa (hiperrefletividade. As larvas foram fotocoaguladas a laser e os achados da tomografia de coerência óptica após o tratamento

  10. Predictors of male microchimerism

    DEFF Research Database (Denmark)

    Kamper-Jørgensen, Mads; Mortensen, Laust Hvas; Andersen, Anne-Marie Nybo

    2012-01-01

    confounding and reverse causation. To address the issue of confounding, we conducted an analysis of predictors of male microchimerism in 272 female participants of the Danish Diet, Cancer and Health cohort. Buffy coat DNA was tested for Y chromosome presence as a marker of male microchimerism. First, we used...... logistic regression and thereafter random forest modeling to evaluate the ability of a range of reproductive, lifestyle, hospital or clinic visit history, and other variables to predict whether women tested positive for male microchimerism. We found some indication that current use of contraceptive pills...... and hormone replacement therapy reduced the odds of testing positive for male microchimerism. However, prediction of male microchimerism presence was poor based on the available variables. Studies of the possible role of male microchimerism in maternal health and disease are therefore unlikely to be heavily...

  11. Poluição difusa urbana por compostos inorgânicos: avaliação da contribuição dos componentes do amianto presente nas telhas de fibrocimento e nos freios de veículos

    Directory of Open Access Journals (Sweden)

    Ellen Mayara Sottoriva

    Full Text Available A poluição difusa é caracterizada por impurezas de origem natural ou antrópica. Pela chuva as partículas são carreadas para os corpos hídricos. A quantificação e a caracterização dessa fonte poluidora são dificultadas pela dispersão das partículas nas águas. O amianto é um conjunto de minerais compostos basicamente de silicato de magnésio hidratado, está presente em diversos produtos brasileiros e é considerado altamente cancerígeno em qualquer de suas formas. O presente trabalho consistiu na avaliação da contribuição do mineral nas telhas de fibrocimento e nos freios dos veículos mais antigos na poluição difusa. O estudo foi realizado na Bacia do Rio Belém, onde foram determinados oito pontos amostrais, sendo quatro pontos para a análise do fluxo de veículos e quatro para as coberturas com telhados. Nos resultados não foi possível identificar a concentração das partículas nas águas do rio, sendo sugerido que os procedimentos utilizados não sejam os únicos, mas sim complementados com análises mais específicas.

  12. Tratamiento de la osteomielitis esclerosante difusa con roxitromicina a largo plazo: a propósito de un caso Long-term roxithromycin treatment for diffuse sclerosing osteomyelitis: a case report

    Directory of Open Access Journals (Sweden)

    T. Creo Martínez

    2005-12-01

    Full Text Available La osteomielitis esclerosante difusa (OED es una enfermedad de etiología desconocida, con dificultades para el diagnóstico y tratamiento ya que la literatura existente al respecto es confusa, con un gran desconocimiento respecto a su causa y evolución natural. Existen de dos teorías para explicar su origen: Infecciosa: difícil de confirmar mediante los datos bacteriológicos. Hiperplasia ósea derivada de una tendoperiostitis crónica, por una disfunción muscular y hábitos parafuncionales. Se caracteriza por dolor recurrente y tumefacción hemimandibular, aunque puede presentar otras localizaciones, acompañada habitualmente de trismus, presión y parestesia y adenopatías regionales, cursa de forma episódica. El tratamiento de la OED es complejo, debido a que se han intentado múltiples terapias sin que ninguna haya dado un resultado satisfactorio a largo plazo.Tras revisar el tema, a propósito de un caso clínico, recomendamos roxitromicina a largo plazo como una línea de tratamiento a tener en cuenta en la OED por la eficacia que viene demostrando y los tolerables efectos secundarios, si bien cada caso debido a la complejidad de la enfermedad debe ser revisado individualmente, pero teniendo en cuenta esta opción terapéutica.Diffuse sclerosing osteomyelitis (DSO is a disease of unknown etiology which is difficult to diagnose and treat as the literature available on the subject is confused, and there is a considerable lack of knowledge with regards to what causes it and its natural evolution. There are two theories explaining its origin. One suggests an infectious origin, but this is difficult to confirm by means of bacteriological data. The other suggests an osseous hyperplasia origin derived from chronic tendoperiostitis as a result of muscular dysfunction and parafunctional habits. The disease is characterized by recurrent pain and hemimandibular tumefaction, although it can present in other locations. It is accompanied normally

  13. Speed control and generation of electric power of a gas turbine by means of fuzzy-logic; Control de velocidad y de generacion de potencia electrica de una turbina de gas mediante logica difusa

    Energy Technology Data Exchange (ETDEWEB)

    Bahamaca Fernandez, Luis Jonathan

    2000-08-01

    The development of a fuzzy-logic control algorithm is presented. It was developed for the speed and load control of a gas turbine. The speed/load controller of the gas turbine which were conventional Pi's were completely replaced by the fuzzy-logic controllers. The fuzzy controllers correspond to MISO systems that has as input the error an its rate of change and as an output the control signal for the fuel valve. The fuzzy controller provides an algorithm that can turn a strategy of linguistic control (based on knowledge of experts) into a strategy of automatic control. The fuzzy controllers were validated by the development of functional test in a simulation of a nonlinear mathematical gas-turbine model. The controllers were programmed in C language in PC. Simulation test for the speed regulation and load tracking were used for the controller validation. The fuzzy controller had a good performance because the minimized the signal error produced by the set of programmed system perturbations (due to control actions). Besides, they had a better reference tracking then PI controllers. Consequently, the proposed fuzzy controllers have a better performance than the conventional control system. [Spanish] En este trabajo de tesis se presenta el diseno, programacion y evaluacion de un algoritmo de control basado en logica difusa para el control de velocidad y generacion de potencia electrica de una turbina de gas. En el esquema de control velocidad/carga de la turbina de gas, se sustituyeron completamente los dos controladores convencionales del tipo PI por controladores difusos, teniendo asi un control digital directo. Los controladores difusos corresponden a sistemas MISO que utilizan como variables de entrada el error y la derivada del error, y como variable de salida la senal de control a la valvula de combustible. De esta forma, un controlador difuso provee un algoritmo que puede convertir una estrategia de control linguistico (basado en conocimiento de expertos

  14. Aplicación de solución difusa de la negociación a tres casos de estudio / Application of a fuzzy negotiation solution to three study cases

    Directory of Open Access Journals (Sweden)

    Erick González Caballero

    2014-04-01

    Full Text Available La Solución Compensatoria de la Negociación basada en la Ingeniería del Conocimiento (SCNIC es una nueva solución para la ayuda a la decisión en el regateo que se apoya en las matemáticas, la Inteligencia Artificial y la lógica, específicamente en la Teoría de Juegos Cooperativos N-Personales, la Ingeniería del Conocimiento y la Lógica Difusa Compensatoria (LDC. Una ventaja de esta solución sobre sus precedentes es la interpretabilidad de sus predicados compuestos, gracias al sistema lógico que utiliza. El objetivo de este artículo es mostrar las potencialidades de esta herramienta mediante su aplicación en el estudio de tres casos reales. Para ello se utilizó el estudio de casos como método de trabajo para corroborar que la SCNIC es aplicable para resolver problemas de negociación reales. En todos los casos resueltos, el resultado fue que con la SCNIC los índices satisfacen una escala absoluta de medición, mientras que con la SDNIC estos satisfacían una escala de medición relativa. ABSTRACT Compensatory Negotiation Solution by Knowledge Engineering (CNSKE is a new solution for decision support in bargaining that is based on mathematics, artificial intelligence and logic, specifically Cooperative n-person games, Knowledge Engineering and Compensatory Fuzzy Logic (CFL. An advantage of this solution, upon its predecessors, is the interpretability of its compounds predicates because of the logic system used. The potential of this tool is shown through its application in the study of three real cases. Case study was used as a method to confirm that the SCNIC is applicable for solving real negotiations. In all cases analyzed, the result was that indexes of CNSKE satisfy an absolute scale of measure, this is a significant difference with FNSKE, which only satisfies a relative scale of measure.

  15. Experiencia en el uso de la Lógica Difusa para el Control del Seguimiento del Punto de Máxima Potencia en Convertidores para Módulos Fotovoltaicos

    Directory of Open Access Journals (Sweden)

    Roberto F. Farfán

    2015-04-01

    conventional system. Experimental measures indicate that the response of FLC developed under different conditions for irradiance and temperature are correct. The final physical implementation of FLC proposed is performed through a 32-bit PIC microcontroller. Palabras clave: Lógica Difusa, FLC, Boost, Fotovoltaico., Keywords: Fuzzy Logic, FLC, Boost, Photovoltaic.

  16. Variação da ecogenicidade difusa em parênquima hepático homogêneo relacionada aos achados bioquímicos e hematológicos em cães

    Directory of Open Access Journals (Sweden)

    Fernanda P. Medeiros

    2013-12-01

    Full Text Available No presente estudo foi analisado o parênquima hepático com características homogêneas e ecogenicidade difusa reduzida (G1, aumentada (G2 e normal (G3, em relação ao perfil dos animais, dimensão do fígado e achado bioquímico e hematológico. Amostras de sangue obtidas por punção venosa da jugular ou da cefálica do antebraço foram encaminhadas para realização de hemograma e dosagem sérica de ALT, FA, proteínas totais, albumina, globulina, uréia e creatinina. Dos 30 cães que compuseram o G1, 30 (100% apresentaram evidenciação das paredes portais e da parede da vesícula biliar, 23 (76,67% fígado com dimensão preservada e bordos em ângulos agudos, 15 (50% faixa etária entre 1 e 6 anos de idade e 8 (26,67% eram da raça Lhasa apso. Não houve predisposição quanto ao sexo, assim como não foram identificadas alterações significativas nos exames bioquímicos e hematológicos dos cães do G1. Quanto aos diagnósticos clínicos atribuídos para estes cães, houve maior prevalência de gastroenterite (43,33%. Dos 30 cães do G2, 27 animais (90% apresentaram hepatomegalia e arredondamento dos bordos hepáticos, 18 (60% tinham idade superior a 9 anos, 16 (53,33% eram fêmeas e 9 (30% eram da raça poodle. Houve elevação da atividade sérica de FA e elevação de ALT, redução nos níveis de proteínas séricas totais, albumina, globulinas, eritrócitos e volume globular, além de leucocitose por neutrofilia, com desvio à esquerda, eosinopenia, linfopenia e monocitose nos cães do G2. Neste grupo houve prevalência de doenças metabólicas (54%, como diabetes mellitus e hiperadrenocorticismo, além das hepatopatias crônicas (17%, atribuídas ao uso contínuo e prolongado de corticóide e drogas anticonvulsivantes. Dos 30 cães do grupo controle (G3, 22 (73,33% apresentaram dimensões hepáticas inalteradas e bordos em ângulos agudos. Neste grupo de animais, não houve alterações significativas nos exames laboratoriais.

  17. HIPEROSTOSIS ESQUELÉTICA DIFUSA IDIOPÁTICA EN UNA COLECCIÓN OSTEOLÓGICA CONTEMPORÁNEA (LA PLATA, BUENOS AIRES, ARGENTINA / Difusse Idiopathic Skeletal Hyperostosis in a contemporary osteological collection (La Plata, Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Marcos Plischuk

    2015-06-01

    Full Text Available La Hiperostosis Esquelética Difusa Idiopática (DISH es una enfermedad caracterizada por provocar anquilosis entre cuerpos vertebrales, sumada a la osificación masiva de ligamentos y tendones en el resto del sistema esqueletal. El objetivo del presente trabajo es establecer la prevalencia de DISH en una colección osteológica documentada contemporánea y discutir rasgos patognomónicos y factores de riesgo asociados. A fin de establecer un diagnóstico se relevó, en 100 individuos adultos, la formación de bloques óseos de al menos tres vertebras fusionadas por la osificación de ligamento vertebral anterior. Se consideró además que no estuvieran comprometidos los espacios intervertebrales y la articulación sacroilíaca. En la zona extra espinal se registraron como evidencia complementaria la presencia de entesopatías. Como resultado del análisis se observaron seis individuos con DISH, sin diferencias significativas entre ambos sexos. El segmento vertebral principalmente afectado fue el torácico, los espacios intervertebrales no se vieron comprometidos en ningún caso y la articulación sacroilíaca tampoco presentó señales de osificación patológica; a la vez que se relevaron numerosas entesopatías. Las prevalencias observadas se deberían a la avanzada edad de los individuos analizados y las características nutricionales de la población de referencia.  Abstract  The diffuse idiopathic skeletal hyperostosis (DISH is a disease characterized by vertebral ankylosis, with massive ligaments and tendons ossification in the rest of the skeletal system. The aim of this study is to establish the prevalence of DISH in a well-documented and contemporary osteological collection, and to discuss pathognomonic features and associated risk factors. In order to establish the diagnosis, we registered, in 100 adults, the formation of bone blocks, with at least three fused vertebrae by ossification of the anterior vertebral ligament. It was

  18. Distillation Column Flooding Predictor

    Energy Technology Data Exchange (ETDEWEB)

    George E. Dzyacky

    2010-11-23

    The Flooding Predictor™ is a patented advanced control technology proven in research at the Separations Research Program, University of Texas at Austin, to increase distillation column throughput by over 6%, while also increasing energy efficiency by 10%. The research was conducted under a U. S. Department of Energy Cooperative Agreement awarded to George Dzyacky of 2ndpoint, LLC. The Flooding Predictor™ works by detecting the incipient flood point and controlling the column closer to its actual hydraulic limit than historical practices have allowed. Further, the technology uses existing column instrumentation, meaning no additional refining infrastructure is required. Refiners often push distillation columns to maximize throughput, improve separation, or simply to achieve day-to-day optimization. Attempting to achieve such operating objectives is a tricky undertaking that can result in flooding. Operators and advanced control strategies alike rely on the conventional use of delta-pressure instrumentation to approximate the column’s approach to flood. But column delta-pressure is more an inference of the column’s approach to flood than it is an actual measurement of it. As a consequence, delta pressure limits are established conservatively in order to operate in a regime where the column is never expected to flood. As a result, there is much “left on the table” when operating in such a regime, i.e. the capacity difference between controlling the column to an upper delta-pressure limit and controlling it to the actual hydraulic limit. The Flooding Predictor™, an innovative pattern recognition technology, controls columns at their actual hydraulic limit, which research shows leads to a throughput increase of over 6%. Controlling closer to the hydraulic limit also permits operation in a sweet spot of increased energy-efficiency. In this region of increased column loading, the Flooding Predictor is able to exploit the benefits of higher liquid

  19. A neuro-fuzzy system to support in the diagnostic of epileptic events and non-epileptic events using different fuzzy arithmetical operations Um sistema neuro-difuso para auxiliar no diagnóstico de eventos epilépticos e eventos não epilépticos utilizando diferentes operações aritméticas difusas

    Directory of Open Access Journals (Sweden)

    Lucimar M.F. de Carvalho

    2008-06-01

    Full Text Available OBJECTIVE: To investigate different fuzzy arithmetical operations to support in the diagnostic of epileptic events and non epileptic events. METHOD: A neuro-fuzzy system was developed using the NEFCLASS (NEuro Fuzzy CLASSIfication architecture and an artificial neural network with backpropagation learning algorithm (ANNB. RESULTS: The study was composed by 244 patients with a bigger frequency of the feminine sex. The number of right decisions at the test phase, obtained by the NEFCLASS and ANNB was 83.60% and 90.16%, respectively. The best sensibility result was attained by NEFCLASS (84.90%; the best specificity result were attained by ANNB with 95.65%. CONCLUSION: The proposed neuro-fuzzy system combined the artificial neural network capabilities in the pattern classifications together with the fuzzy logic qualitative approach, leading to a bigger rate of system success.OBJETIVO: Investigar diferentes operações aritméticas difusas para auxíliar no diagnóstico de eventos epilépticos e eventos não-epilépticos. MÉTODO: Um sistema neuro-difuso foi desenvolvido utilizando a arquitetura NEFCLASS (NEuro Fuzzy CLASSIfication e uma rede neural artificial com o algoritmo de aprendizagem backpropagation (RNAB. RESULTADOS: A amostra estudada foi de 244 pacientes com maior freqüência no sexo feminino. O número de decisões corretas na fase de teste, obtidas através do NEFCLASS e RNAB foi de 83,60% e 90,16%, respectivamente. O melhor resultado de sensibilidade foi obtido com o NEFCLASS (84,90%; o melhor resultado de especificidade foi obtido com a RNAB (95,65%. CONCLUSÃO: O sistema neuro-difuso proposto combinou a capacidade das redes neurais artificiais na classificação de padrões juntamente com a abordagem qualitativa da logica difusa, levando a maior taxa de acertos do sistema.

  20. Predictors of Students' Academic Performance

    Science.gov (United States)

    Makar, Kathryn K.

    2013-01-01

    Research conclusions concerning predictors of academic success have been, at best, less than convincing. In fact, these conclusions are more conflicting or mixed when emotional constructs are used. As a result, modern curriculum developers as well as classroom instructors seem to deemphasize, if not ignore, the role of the affective domain in…

  1. Measures for Predictors of Innovation Adoption

    Science.gov (United States)

    Chor, Ka Ho Brian; Wisdom, Jennifer P.; Olin, Su-Chin Serene; Hoagwood, Kimberly E.; Horwitz, Sarah M.

    2014-01-01

    Building on a narrative synthesis of adoption theories by Wisdom et al. (2013), this review identifies 118 measures associated with the 27 adoption predictors in the synthesis. The distribution of measures is uneven across the predictors and predictors vary in modifiability. Multiple dimensions and definitions of predictors further complicate measurement efforts. For state policymakers and researchers, more effective and integrated measurement can advance the adoption of complex innovations such as evidence-based practices. PMID:24740175

  2. Measures for Predictors of Innovation Adoption.

    Science.gov (United States)

    Chor, Ka Ho Brian; Wisdom, Jennifer P; Olin, Su-Chin Serene; Hoagwood, Kimberly E; Horwitz, Sarah M

    2015-09-01

    Building on a narrative synthesis of adoption theories by Wisdom et al. (2013), this review identifies 118 measures associated with the 27 adoption predictors in the synthesis. The distribution of measures is uneven across the predictors and predictors vary in modifiability. Multiple dimensions and definitions of predictors further complicate measurement efforts. For state policymakers and researchers, more effective and integrated measurement can advance the adoption of complex innovations such as evidence-based practices.

  3. Annual evolution of global, direct and diffuse radiation and fractions in tilted surfaces Evolução anual das radiações e fraç��es global, direta e difusa em superfícies inclinadas

    Directory of Open Access Journals (Sweden)

    Adilson P. de Souza

    2012-04-01

    Full Text Available It was evaluated the annual evolution of global, direct and diffuse components of incident solar radiation on tilted surfaces to 12.85, 22.85 and 32.85º, facing north, in Botucatu, state of São Paulo, Brazil. The radiometric fractions were obtained for each component of the radiation in the aforementioned surfaces, through the ratio with the global and top of the atmosphere radiations. Seasonality was evaluated based on monthly averages of daily values. The measures occurred between 04/1998 and 07/2001 at 22.85º; 08/2001 and 02/2003 at 12.85º; and from 03/2003 to 12/2007 at 32.85º, with concomitant measures in the horizontal surface (reference. The levels of global and direct radiation on tilted surfaces were lower in summer and higher in the equinoxes when compared with the horizontal. The diffuse radiation on tilted surfaces was lower in most months, with losses of up to 65%. A trend of increasing differences occurred between horizontal and tilted surfaces with the increase of the angle in all the components and fractions of incident radiation. The annual evolution of rainfall and cloud cover ratio directly affected the atmospheric transmissivity of direct and diffuse components in the region.Avaliou-se a evolução anual das componentes global, direta e difusa da radiação solar incidente em superfícies inclinadas a 12,85; 22,85 e 32,85º, com face voltada ao Norte, em Botucatu-SP. Foram obtidas frações radiométricas para cada componente da radiação nas superfícies supracitadas, através de razões com a radiação global e a do topo da atmosfera. A sazonalidade foi avaliada através das médias mensais dos valores diários. As medidas ocorreram entre 04/1998 e 07/2001, em 22,85º; 08/2001 e 02/2003, em 12,85º; e de 03/2003 a 12/2007, em 32,85º, com medidas concomitantes no plano horizontal (referência. Os níveis das radiações global e direta nos planos inclinados foram inferiores no período de verão e superiores entre os

  4. Evaluación de programas públicos en el marco de la realidad social. Metodología basada en la lógica difusa como instrumento para el análisis de fenómenos sociales

    Directory of Open Access Journals (Sweden)

    Lucio Flores Payán

    2013-04-01

    Full Text Available En la actualidad existe una variedad de modelos y metodologías para el análisis y evaluación de programas sociales, no obstante, muchos de ellos corresponden a casos donde la información y datos objetivos necesarios son precarios, lo que propicia tener que partir de evaluaciones con valoraciones más subjetivas. La realidad social, extremadamente compleja, requiere de un pensamiento más fuerte y de poderosos instrumentos analíticos capaces de comprenderla. Por ello, la implementación de elementos alternativos como es el caso de la Teoría de la lógica difusa –y sus aplicaciones-, pueden ser muy útiles para tratar fenómenos sociales porque proveen de una comprensión muy abstracta y al mismo tiempo de instrumentos prácticos con los cuales reducir los aspectos de incertidumbre y vaguedad de las decisiones del pensamiento humano, y así, orientar o aún más, redirigir la intervención social para mejorar la visión analítica en la evaluación de programas sociales.

  5. Interpersonal predictors of stress generation.

    Science.gov (United States)

    Eberhart, Nicole K; Hammen, Constance L

    2009-05-01

    Hammen (1991) provided evidence for a stress generation process in which individuals with a history of depression contributed to the occurrence of stressors, especially interpersonal and conflict events. However, few studies have examined the factors contributing to stress generation. This study examines aspects of individuals' interpersonal style, operationalized as attachment, dependency, and reassurance seeking, as predictors of conflict stress generation within romantic relationships. These effects were examined both prospectively over a 4-week period and cross-sectionally using a 14-day daily diary in a sample of female college students. Overall, there was significant evidence that interpersonal style contributes to the occurrence of interpersonal stressors. Specifically, anxious attachment and reassurance seeking prospectively predicted romantic conflict stress over a 4-week period, and a variety of interpersonal behaviors were associated with romantic conflict stressors on a daily basis. These results are interpreted in relation to previous literature, and limitations and directions for future research are discussed.

  6. Predictors of treatment failure among pulmonary tuberculosis ...

    African Journals Online (AJOL)

    Introduction: Early identification of Tuberculosis (TB) treatment failure using cost effective means is urgently needed in developing nations. The study set out to describe affordable predictors of TB treatment failure in an African setting. Objective: To determine the predictors of treatment failure among patients with sputum ...

  7. Predictors of Transience among Homeless Emerging Adults

    Science.gov (United States)

    Ferguson, Kristin M.; Bender, Kimberly; Thompson, Sanna J.

    2014-01-01

    This study identified predictors of transience among homeless emerging adults in three cities. A total of 601 homeless emerging adults from Los Angeles, Austin, and Denver were recruited using purposive sampling. Ordinary least squares regression results revealed that significant predictors of greater transience include White ethnicity, high…

  8. Predictors of Burnout Among Nurses in Taiwan.

    Science.gov (United States)

    Lee, Huan-Fang; Yen, Miaofen; Fetzer, Susan; Chien, Tsair Wei

    2015-08-01

    Nurse burnout is a crucial issue for health care professionals and impacts nurse turnover and nursing shortages. Individual and situational factors are related to nurse burnout with predictors of burnout differing among cultures and health care systems. The predictors of nurse burnout in Asia, particularly Taiwan, are unknown. The purpose of this study was to investigate the predictors of burnout among a national sample of nurses in Taiwan. A secondary data analysis of a nationwide database investigated the predictors of burnout among 1,846 nurses in Taiwan. Hierarchical regression analysis determined the relationship between predictors and burnout. Predictors of Taiwanese nurse burnout were age, physical/psychological symptoms, job satisfaction, work engagement, and work environment. The most significant predictors were physical/psychological symptoms and work engagement. The variables explained 35, 39, and 18 % of the emotional exhaustion, personal accomplishment, and depersonalization variance for 54 % of the total variance of burnout. Individual characteristics and nurse self-awareness, especially work, engagement can impact Taiwanese nurses' burnout. Nurse burnout predictors provide administrators with information to develop strategies including education programs and support services to reduce nurse burnout.

  9. Some Predictors of Yugoslavian Adolescents' Problems.

    Science.gov (United States)

    Lackovic-Grgin, Katica; Dekovic, Maja

    1991-01-01

    Examined contribution of personal, interpersonal, and demographic variables to prediction of adolescents' problems among 391 Yugoslavian adolescents. Found personal and interpersonal variables to be better predictors of adolescents' problems than were demographic variables. Best predictors were neuroticism (personal variable) and nurture of father…

  10. Incidence and predictors of coronary stent thrombosis

    DEFF Research Database (Denmark)

    D'Ascenzo, Fabrizio; Bollati, Mario; Clementi, Fabrizio

    2013-01-01

    Stent thrombosis remains among the most feared complications of percutaneous coronary intervention (PCI) with stenting. However, data on its incidence and predictors are sparse and conflicting. We thus aimed to perform a collaborative systematic review on incidence and predictors of stent...... thrombosis....

  11. A smart predictor for material property testing

    International Nuclear Information System (INIS)

    Wang, Wilson; Kanneg, Derek

    2008-01-01

    A reliable predictor is very useful for real-world industrial applications to forecast the future behavior of dynamic systems. A smart predictor, based on a novel recurrent neural fuzzy (RNF) scheme, is developed in this paper for multi-step-ahead prediction of material properties. A systematic investigation based on two benchmark data sets is conducted in terms of performance and efficiency. Analysis results reveal that, of the data-driven forecasting schemes, predictors based on step input patterns outperform those based on sequential input patterns; the RNF predictor outperforms those based on recurrent neural networks and ANFIS schemes in multi-step-ahead prediction of nonlinear time series. An adaptive Levenberg–Marquardt training technique is adopted to improve the robustness and convergence of the RNF predictor. Furthermore, the proposed smart predictor is implemented for material property testing. Investigation results show that the developed RNF predictor is a reliable forecasting tool for material property testing; it can capture and track the system's dynamic characteristics quickly and accurately. It is also a robust predictor to accommodate different system conditions

  12. Prevalence and Predictors of Hypertension History among ...

    African Journals Online (AJOL)

    Background: Hypertension is one of the leading causes of mortality and morbidity around the world and has become a public health problem. Meanwhile, information on predictors of hypertension in Ghana seldom focuses on men. This study, therefore, sought to determine the prevalence and predictors of hypertension ...

  13. Electrical Signs predictors of malignant ventricular arrhythmias

    International Nuclear Information System (INIS)

    Aleman Fernandez, Ailema Amelia; Dorantes Sanchez, Margarita

    2012-01-01

    Recurrence of malignant ventricular arrhythmia is frequent in cardioverter-defibrillators related patients. The risk stratification is difficult, there are numerous electrocardiographic predictors but his sensibility and specificity are not absolute. The limit between normal and pathological is not defined, besides the complexity of ventricular arrhythmias. We expose different electrocardiographic predictors that can help to better individual risk stratification

  14. Personality variables as predictors of Facebook usage.

    Science.gov (United States)

    Caci, Barbara; Cardaci, Maurizio; Tabacchi, Marco E; Scrima, Fabrizio

    2014-04-01

    This study investigates the role of personality factors as predictors of Facebook usage. Data concerning Facebook usage and personality factors from 654 Facebook users were gathered using a web survey. Using path analysis, the results showed Openness was a predictor of Facebook early adoption, Conscientiousness with sparing use, Extraversion with long sessions and abundant friendships, and Neuroticism with high frequency of sessions. The possible role of Agreeableness in predicting low session frequency and friendships needs further validation.

  15. Predictors of life disability in trichotillomania.

    Science.gov (United States)

    Tung, Esther S; Flessner, Christopher A; Grant, Jon E; Keuthen, Nancy J

    2015-01-01

    Limited research has investigated disability and functional impairment in trichotillomania (TTM) subjects. This study examined the relationships between hair pulling (HP) style and severity and disability while controlling for mood severity. Disability was measured in individual life areas (work, social, and family/home life) instead of as a total disability score as in previous studies. One hundred fifty three adult hair pullers completed several structured interviews and self-report instruments. HP style and severity, as well as depression, anxiety, and stress were correlated with work, social, and family/home life impairment on the Sheehan Disability Scale (SDS). Multiple regression analyses were performed to determine significant predictors of life impairment. Depressive severity was a significant predictor for all SDS life areas. In addition, interference/avoidance associated with HP was a predictor for work and social life disability. Distress from HP was a significant predictor of social and family/home life disability. Focused HP score and anxiety were significant predictors of family/home life disability. As expected, depression in hair pullers predicted disability across life domains. Avoiding work and social situations can seriously impair functioning in those life domains. Severity of distress and worry about HP may be most elevated in social situations with friends and family and thus predict impairment in those areas. Finally, since HP often occurs at home, time spent in focused hair pulling would have a greater negative impact on family and home responsibilities than social and work life. Copyright © 2014 Elsevier Inc. All rights reserved.

  16. Predictors of transformational leadership of nurse managers.

    Science.gov (United States)

    Echevarria, Ilia M; Patterson, Barbara J; Krouse, Anne

    2017-04-01

    The aim of this study was to examine the relationships among education, leadership experience, emotional intelligence and transformational leadership of nurse managers. Nursing leadership research provides limited evidence of predictors of transformational leadership style in nurse managers. A predictive correlational design was used with a sample of nurse managers (n = 148) working in varied health care settings. Data were collected using the Genos Emotional Intelligence Inventory, the Multi-factor Leadership Questionnaire and a demographic questionnaire. Simple linear and multiple regression analyses were used to examine relationships. A statistically significant relationship was found between emotional intelligence and transformational leadership (r = 0.59, P leadership. Nurse managers should be well informed of the predictors of transformational leadership in order to pursue continuing education and development opportunities related to those predictors. The results of this study emphasise the need for emotional intelligence continuing education, leadership development and leader assessment programmes. © 2016 John Wiley & Sons Ltd.

  17. Predictors of turnover intention in nurse faculty.

    Science.gov (United States)

    Gormley, Denise K; Kennerly, Susan

    2011-04-01

    Turnover of nurse faculty is an increasingly important issue in nursing as the available number of qualified faculty continues to decrease. Understanding the factors that contribute to turnover is important to academic administrators to retain and recruit qualified nursing faculty. The purpose of this study was to examine predictors of turnover intention in nurse faculty working in departments and schools of nursing in Carnegie Doctoral/Research Universities-Extensive, public and private, not-for-profit institutions. The multidimensional model of organizational commitment was used to frame this study. The predictor variables explored were organizational climate, organizational commitment, work role balance, role ambiguity, and role conflict. The work roles examined were research, teaching, and service. Logistical regression was performed to examine the predictors of turnover intention. Organizational climate intimacy and disengagement, affective and continuance organizational commitment, and role ambiguity were shown to predict turnover intention in nurse faculty. Copyright 2011, SLACK Incorporated.

  18. DRREP: deep ridge regressed epitope predictor.

    Science.gov (United States)

    Sher, Gene; Zhi, Degui; Zhang, Shaojie

    2017-10-03

    The ability to predict epitopes plays an enormous role in vaccine development in terms of our ability to zero in on where to do a more thorough in-vivo analysis of the protein in question. Though for the past decade there have been numerous advancements and improvements in epitope prediction, on average the best benchmark prediction accuracies are still only around 60%. New machine learning algorithms have arisen within the domain of deep learning, text mining, and convolutional networks. This paper presents a novel analytically trained and string kernel using deep neural network, which is tailored for continuous epitope prediction, called: Deep Ridge Regressed Epitope Predictor (DRREP). DRREP was tested on long protein sequences from the following datasets: SARS, Pellequer, HIV, AntiJen, and SEQ194. DRREP was compared to numerous state of the art epitope predictors, including the most recently published predictors called LBtope and DMNLBE. Using area under ROC curve (AUC), DRREP achieved a performance improvement over the best performing predictors on SARS (13.7%), HIV (8.9%), Pellequer (1.5%), and SEQ194 (3.1%), with its performance being matched only on the AntiJen dataset, by the LBtope predictor, where both DRREP and LBtope achieved an AUC of 0.702. DRREP is an analytically trained deep neural network, thus capable of learning in a single step through regression. By combining the features of deep learning, string kernels, and convolutional networks, the system is able to perform residue-by-residue prediction of continues epitopes with higher accuracy than the current state of the art predictors.

  19. Exploring the relationship between protean and boundaryless career attitudes and affective commitment through the lens of a fuzzy set QCA methodology Explorando la relación entre las actitudes de carreras protéicas y nómadas y el compromiso afectivo desde la óptica de una metodología basada en lógica difusa

    Directory of Open Access Journals (Sweden)

    Mihaela Enache

    2008-01-01

    afectivo de los empleados hacia su organización; y (2 ofrecer una guía de uso de la metodología basada en lógica difusa en las investigaciones sobre carreras profesionales.

  20. Acute subdural hematoma and diffuse axonal injury in fatal road traffic accident victims: a clinico-pathological study of 15 patients Hematoma subdural agudo e lesão axonal difusa em vítimas fatais de acidente de trânsito: estudo clínico-patológico de 15 pacientes

    Directory of Open Access Journals (Sweden)

    Sebastião Nataniel Silva Gusmão

    2003-09-01

    Full Text Available OBJECTIVE: Although acute subdural hematoma (ASDH and diffuse axonal injury (DAI are commonly associated in victims of head injury due to road traffic accidents, there are only two clinico-pathological studies of this association. We report a clinical and pathological study of 15 patients with ASDH associated with DAI. METHOD: The patients were victims of road traffic accidents and were randomly chosen. The state of consciousness on hospital admission was evaluated by the Glasgow coma scale. For the identification of axons the histological sections of the brain were stained with anti-neurofilament proteins. RESULTS: Twelve of the 15 patients were admitted to hospital in a state of coma; in three patients, the level of consciousness was not evaluated, as they died before hospital admission. CONCLUSION: The poorer prognosis in patients with ASDH who lapse into coma immediately after sustaining a head injury, as described by several authors, can be explained by the almost constant association between ASDH and DAI in victims of fatal road traffic accidents.OBJETIVO: Embora o hematoma subdural agudo (HSDA e a lesão axonal difusa (LAD estejam frequentemente associados em vítimas de trauma crânio-encefálico causado por acidentes de trânsito, há somente dois estudos clínico-patológicos sobre esta associação. Relatamos o estudo clínico-patológico de 15 pacientes com HSDA associado com LAD. MÉTODO: Os pacientes, vítimas de acidentes de trânsito, foram selecionados aleatoriamente. O estado de consciência à admissão hospitalar foi avaliado pela escala de coma de Glasgow. Para a identificação dos axônios, os cortes histológicos do cérebro foram corados com antisoro anti-proteínas do neurofilamento. RESULTADOS: Doze dos 15 pacientes foram admitidos no hospital em estado de coma; em três pacientes, o nível de consciência não foi avaliado, pois eles faleceram antes da admissão hospitalar. CONCLUSÃO: O pior prognóstico em pacientes

  1. Doença aterosclerótica difusa desmascarada pela avaliação fisiológica invasiva da circulação coronária Diffuse atherosclerotic disease unmasked by invasive physiologic assessment of coronary flow

    Directory of Open Access Journals (Sweden)

    Fernando Mendes Sant'Anna

    2005-08-01

    Full Text Available Sabe-se que a aterosclerose coronária é um processo difuso, pouco visível à angiografia. Este artigo descreve um paciente com angina estável, três meses após infarto agudo do miocárdio (IAM, e uma lesão severa na artéria descendente anterior (ADA, evidenciada pela cinecoronariografia. A reserva de fluxo fracionada do miocárdio (FFR, obtida através de medidas pressóricas intracoronárias, foi 0,37 durante a hiperemia máxima, demonstrando claramente a existência de isquemia. Um stent foi implantado na ADA e, a despeito do excelente resultado angiográfico, a FFR pós-stent foi apenas 0,75, o limite mínimo abaixo do qual existe isquemia. Quando a corda guia pressórica (pressure wire - PW foi lentamente recuada da porção distal da ADA para sua porção proximal, notou-se um aumento contínuo e gradativo na pressão intracoronária, o que indica claramente aterosclerose difusa e não estenose focal. Não se notava gradiente no local do stent. O paciente foi mantido em tratamento médico e permanece assintomático até o momento.It is known that coronary atherosclerosis is a diffuse process, very little visible at angiography. This article describes a stable angina patient, three months after acute myocardial infarction (AMI, and a severe lesion in anterior descending artery (ADA, evinced by coronariography. Myocardial fractional flow reserve (FFR, obtained through intracoronary pressure measurements, was 0.37 during maximum hyperemia, clearly showing the presence of ischemia. A stent was implanted in ADA and, despite the excellent angiographic result, post-stent FFR was only 0.75, the minimum limit, below which there is ischemia. When the pressure wire (PW was slowly drawn back from the distal portion of ADA to its proximal portion, a continuous and gradual increase in intracoronary pressure was noted, which clearly indicates diffuse atherosclerosis and not focal stenosis. A gradient was not observed at the stent place. The patient

  2. Longitudinal Predictors of High School Completion

    Science.gov (United States)

    Barry, Melissa; Reschly, Amy L.

    2012-01-01

    This longitudinal study examined predictors of dropout assessed in elementary school. Student demographic data, achievement, attendance, and ratings of behavior from the Behavior Assessment System for Children were used to predict dropout and completion. Two models, which varied on student sex and race, predicted dropout at rates ranging from 75%…

  3. Demographic and dispositional characteristics as predictors of ...

    African Journals Online (AJOL)

    The study examined workers' personal factors and personality characteristics as predictors of Organizational Citizenship Behaviour (OCB). The study employed Ex-Post-Facto within-participants randomized group design. Data were collected from five hundred and four employees of private and public human service ...

  4. PREVALENCE AND PREDICTORS OF PREDIABETES AMONG ...

    African Journals Online (AJOL)

    The aim of this study was to find the prevalence of prediabetes and to determine its predictors among administrative staff of ... Conclusion: There was a high prevalence of prediabetes among the administrative staff of University College ..... Riddell M, Fowles J. How to treat prediabetes with exercise effectively. Diabetes 2010 ...

  5. Predictors of Youth Violence. Juvenile Justice Bulletin.

    Science.gov (United States)

    Hawkins, J. David; Herrenkohl, Todd I.; Farrington, David P.; Brewer, Devon; Catalano, Richard F.; Harachi, Tracy W.; Cothern, Lynn

    This Bulletin describes the strength and duration of changeable risk and protective factors for youth violence at points in youth development when they appear most salient. These predictors are potential targets for prevention and intervention. The quantitative results of a large number of studies were synthesized using meta-analysis procedures.…

  6. Predictors of Homophobia in Female College Students.

    Science.gov (United States)

    Basow, Susan A.; Johnson, Kelly

    2000-01-01

    Investigated how self-esteem, self-discrepancy, and gender-attribute importance related to homophobia in predominantly white college women, noting sex role attitudes, authoritarian attitudes, and extent of contact with homosexuals. The only significant predictor of homophobia was authoritarian attitudes. Other correlations included belief in sex…

  7. Predictors of Mortality in Older Homeless Veterans.

    Science.gov (United States)

    Schinka, John A; Curtiss, Glenn; Leventhal, Katherine; Bossarte, Robert M; Lapcevic, William; Casey, Roger

    2017-10-01

    In this analysis of a cohort of older homeless veterans, we examined psychosocial, health, housing, and employment characteristics to identify predictors of mortality. Our sample of 3,620 older veterans entered Veteran Affairs homeless programs in years 2000-2003. Fifteen variables from a structured interview described this sample and served as predictors. National Death Index data for years 2000-2011 were used to ascertain death. Survival table analyses were conducted to estimate and plot cumulative survival functions. To determine predictors and estimate hazard functions, Cox proportional hazards regression analysis was conducted. Five variables (presence of a serious health issue, hospitalization for alcohol abuse, alcohol dependency, unemployment for 3 years, and age 60+) were associated with increased risk of death; three (non-White, drug dependency, and dental problems) were associated with reduced risk. A risk score, based on total unit-weighted risk for all eight predictors, was used to identify three groups that were found to differ significantly in mortality. These analyses underline the jeopardy faced by older homeless veterans in terms of early death. We were able to identify several variables associated with mortality; more importantly, we were able to show that a risk score based on status for these variables was significantly related to survival. Published by Oxford University Press on behalf of The Gerontological Society of America 2016. This work is written by (a) US Government employee(s) and is in the public domain in the US.

  8. Recurrence of anxiety disorders and its predictors

    NARCIS (Netherlands)

    Scholten, Willemijn D.; Batelaan, Neeltje M.; van Balkom, Anton J. L. M.; Penninx, Brenda; Smit, Johannes H.; van Oppen, Patricia

    Background: The chronic course of anxiety disorders and its high burden of disease are partly due to the recurrence of anxiety disorders after remission. However, knowledge about recurrence rates and predictors of recurrence is scarce. This article reports on recurrence rates of anxiety disorders

  9. The Offspring of Alcoholics: Outcome Predictors.

    Science.gov (United States)

    el-Guebaly, Nady

    1982-01-01

    Reviews risk of psychosocial problems related to drinking among "grown-up" children of alcoholics. Argues that genetic predisposition is best predictor available; this may be more influential near severe end of alcoholism spectrum, may be less influential in females, and may lead to differences in symptomatology and management.…

  10. Morbidities, concordance, and predictors of preterm premature ...

    African Journals Online (AJOL)

    2015-12-05

    Dec 5, 2015 ... accompany PPROM include prematurity, umbilical cord prolapse and compression, neonatal sepsis, respiratory. Morbidities, concordance, and predictors of preterm premature rupture of membranes among pregnant women at the University of Nigeria Teaching Hospital. (UNTH), Enugu, Nigeria. TC Okeke ...

  11. Early Predictors of High School Mathematics Achievement

    Science.gov (United States)

    Siegler, Robert S.; Duncan, Greg J.; Davis-Kean, Pamela E.; Duckworth, Kathryn; Claessens, Amy; Engel, Mimi; Susperreguy, Maria Ines; Meichu, Chen

    2012-01-01

    Identifying the types of mathematics content knowledge that are most predictive of students' long-term learning is essential for improving both theories of mathematical development and mathematics education. To identify these types of knowledge, we examined long-term predictors of high school students' knowledge of algebra and overall mathematics…

  12. Developmental Predictors of Fraction Concepts and Procedures

    Science.gov (United States)

    Jordan, Nancy C.; Hansen, Nicole; Fuchs, Lynn S.; Siegler, Robert S.; Gersten, Russell; Micklos, Deborah

    2013-01-01

    Developmental predictors of children's fraction concepts and procedures at the end of fourth grade were investigated in a 2-year longitudinal study. Participants were 357 children who started the study in third grade. Attentive behavior, language, nonverbal reasoning, number line estimation, calculation fluency, and reading fluency each…

  13. Types, Magnitude, Predictors and Controlling Mechanisms of ...

    African Journals Online (AJOL)

    Questionnaire that contained items on socio-demographic variables, scales on aggression, scales on parenting styles and scales on personality variables was used by ... Regarding the predictors of aggression, scores on the measure of perceived parental affection/warm and agreeableness negatively predicted physical ...

  14. Predictors of distress and anxiety during pregnancy

    African Journals Online (AJOL)

    psychobiological changes associated with pregnancy.31. Finally, lower perceived social support was significantly associated with distress and anxiety at trimester 2 and 3. Level of social support has previously been found to be a predictor of anxiety during pregnancy.12 Studies have shown an association of inadequate ...

  15. Microcomputer Selection of a Predictor Weighting Algorithm.

    Science.gov (United States)

    Morris, John D.

    An empirical method called Predicted Error Sum of Squares (PRESS) is advanced and studied. This method is used to examine the cross-validated prediction accuracies of some popular algorithms for weighted predictor variables. The weighting methods that were considered were ordinary least squares, ridge regression, regression on principal…

  16. Recurrence of anxiety disorders and its predictors

    NARCIS (Netherlands)

    Scholten, W.D.; Batelaan, N.M.; van Balkom, A.J.L.M.; Penninx, B.W.J.H.; Smit, J.H.; van Oppen, P.

    2013-01-01

    Background: The chronic course of anxiety disorders and its high burden of disease are partly due to the recurrence of anxiety disorders after remission. However, knowledge about recurrence rates and predictors of recurrence is scarce. This article reports on recurrence rates of anxiety disorders

  17. Liver transplantation for Hepatocellular carcinoma: Predictors of ...

    African Journals Online (AJOL)

    Liver transplantation for Hepatocellular carcinoma: Predictors of recurrence in our study. HD Smith. Abstract. Hepatocellular carcinoma (HCC) is an aggressive malignancy mostly complicating some underlying liver pathology that has lead to cirrhosis. Some of the epidemiological factors were summarized by the 54th ...

  18. Preoperative predictors of thrombocytopenia in Caesarean delivery ...

    African Journals Online (AJOL)

    Preoperative predictors of thrombocytopenia in Caesarean delivery: is routine platelet count testing necessary? ... moderate thrombocytopenia. All asymptomatic patients, including those who were HIV positive, had platelet counts > 70 000/μl. Keywords: Caesarean delivery, HIV, obstetrics, pregnancy, thrombocytopenia ...

  19. Predictors of Ramadan fasting during pregnancy

    NARCIS (Netherlands)

    van Bilsen, Lily A.; Savitri, Ary I.; Amelia, Dwirani; Baharuddin, Mohammad; Grobbee, Diederick E.; Uiterwaal, Cuno S P M

    2016-01-01

    Although the health effects of Ramadan fasting during pregnancy are still unclear, it is important to identify the predictors and motivational factors involved in women's decision to observe the fast. We investigated these factors in a cross sectional study of 187 pregnant Muslim women who attended

  20. Predictors of Arab American Adolescent Tobacco Use

    Science.gov (United States)

    Rice, Virginia Hill; Weglicki, Linda S.; Templin, Thomas; Hammad, Adnan; Jamil, Hikmet; Kulwicki, Anahid

    2006-01-01

    This study examined personal, psychosocial, sociocultural, and environmental predictors in tobacco use for 1,671 Arab American adolescents. Cigarette smoking in the past 30 days was 6.9%. This increased from 1% at age 14 to 14% at age 18. Twenty-nine percent of the youths reported having ever smoked cigarettes. Experimentation with narghile was…

  1. Predictors of vaccine management practices among primary ...

    African Journals Online (AJOL)

    Objective: Worldwide, vaccines are becoming more expensive as new ones are being introduced to the immunization schedule. Inspite of this, researches have revealed poor vaccine management practices among health workers. This study aimed to determine the predictors of vaccine management practices among ...

  2. IQ and Neuropsychological Predictors of Academic Achievement

    Science.gov (United States)

    Mayes, Susan Dickerson; Calhoun, Susan L.; Bixler, Edward O.; Zimmerman, Dennis N.

    2009-01-01

    Word reading and math computation scores were predicted from Wechsler Abbreviated Scale of Intelligence Full Scale IQ, 10 neuropsychological tests, and parent attention deficit hyperactivity disorder (ADHD) ratings in 214 general population elementary school children. IQ was the best single predictor of achievement. In addition, Digit Span…

  3. Predictor variable resolution governs modeled soil types

    Science.gov (United States)

    Soil mapping identifies different soil types by compressing a unique suite of spatial patterns and processes across multiple spatial scales. It can be quite difficult to quantify spatial patterns of soil properties with remotely sensed predictor variables. More specifically, matching the right scale...

  4. Predictors of readmission after outpatient plastic surgery.

    Science.gov (United States)

    Mioton, Lauren M; Buck, Donald W; Rambachan, Aksharananda; Ver Halen, Jon; Dumanian, Gregory A; Kim, John Y S

    2014-01-01

    Hospital readmissions have become a topic of focus for quality care measures and cost-reduction efforts. However, no comparative multi-institutional data on plastic surgery outpatient readmission rates currently exist. The authors endeavored to investigate hospital readmission rates and predictors of readmission following outpatient plastic surgery. The 2011 National Surgical Quality Improvement Program database was reviewed for all outpatient procedures. Unplanned readmission rates were calculated for all 10 tracked surgical specialties (i.e., general, thoracic, vascular, cardiac, orthopedics, otolaryngology, plastics, gynecology, urology, and neurosurgery). Multivariate logistic regression models were used to determine predictors of readmission for plastic surgery. A total of 7005 outpatient plastic surgery procedures were isolated. Outpatient plastic surgery had a low associated readmission rate (1.94 percent) compared with other specialties. Seventy-five patients were readmitted with a complication. Multivariate regression analysis revealed obesity (body mass index ≥ 30), wound infection within 30 days of the index surgery, and American Society of Anesthesiologists class 3 or 4 physical status as significant predictors for unplanned readmission. Unplanned readmission after outpatient plastic surgery is infrequent and compares favorably to rates of readmission among other specialties. Obesity, wound infection within 30 days of the index operation, and American Society of Anesthesiologists class 3 or 4 physical status are independent predictors of readmission. As procedures continue to transition into outpatient settings and the drive to improve patient care persists, these findings will serve to optimize outpatient surgery use.

  5. Analysis Of Entrepreneurial Attributes As Predictors Of ...

    African Journals Online (AJOL)

    Entrepreneurial attributes such as desire for achievement, locus of control, risk taking propensity, proactiveness, tolerance for ambiguity, creativity and others have been viewed by several researchers as predictors of entrepreneurial actions. Relating these attributes to youth's entrepreneurship, this paper is aimed to ...

  6. Predictors of mental health in female teachers.

    Science.gov (United States)

    Seibt, Reingard; Spitzer, Silvia; Druschke, Diana; Scheuch, Klaus; Hinz, Andreas

    2013-12-01

    Teaching profession is characterised by an above-average rate of psychosomatic and mental health impairment due to work-related stress. The aim of the study was to identify predictors of mental health in female teachers. A sample of 630 female teachers (average age 47 ± 7 years) participated in a screening diagnostic inventory. Mental health was surveyed with the General Health Questionnaire GHQ-12. The following parameters were measured: specific work conditions (teacher-specific occupational history), scales of the Effort-Reward-Imbalance (ERI) Questionnaire as well as cardiovascular risk factors, physical complaints (BFB) and personal factors such as inability to recover (FABA), sense of coherence (SOC) and health behaviour. First, mentally fit (MH(+)) and mentally impaired teachers (MH(-)) were differentiated based on the GHQ-12 sum score (MH(+): teachers showed evidence of mental impairment. There were no differences concerning work-related and cardiovascular risk factors as well as health behaviour between MH(+) and MH(-). Binary logistic regressions identified 4 predictors that showed a significant effect on mental health. The effort-reward-ratio proved to be the most relevant predictor, while physical complaints as well as inability to recover and sense of coherence were identified as advanced predictors (explanation of variance: 23%). Contrary to the expectations, classic work-related factors can hardly contribute to the explanation of mental health. Additionally, cardiovascular risk factors and health behaviour have no relevant influence. However, effort-reward-ratio, physical complaints and personal factors are of considerable influence on mental health in teachers. These relevant predictors should become a part of preventive arrangements for the conservation of teachers' health in the future.

  7. Predictors of mental health in female teachers

    Directory of Open Access Journals (Sweden)

    Reingard Seibt

    2013-12-01

    Full Text Available Objective: Teaching profession is characterised by an above-average rate of psychosomatic and mental health impairment due to work-related stress. The aim of the study was to identify predictors of mental health in female teachers. Material and Methods: A sample of 630 female teachers (average age 47±7 years participated in a screening diagnostic inventory. Mental health was surveyed with the General Health Questionnaire GHQ-12. The following parameters were measured: specific work conditions (teacher-specific occupational history, scales of the Effort-Reward-Imbalance (ERI Questionnaire as well as cardiovascular risk factors, physical complaints (BFB and personal factors such as inability to recover (FABA, sense of coherence (SOC and health behaviour. Results: First, mentally fit (MH+ and mentally impaired teachers (MH- were differentiated based on the GHQ-12 sum score (MH+: < 5; MH-: ≥ 5; 18% of the teachers showed evidence of mental impairment. There were no differences concerning work-related and cardiovascular risk factors as well as health behaviour between MH+ and MH-. Binary logistic regressions identified 4 predictors that showed a significant effect on mental health. The effort-reward-ratio proved to be the most relevant predictor, while physical complaints as well as inability to recover and sense of coherence were identified as advanced predictors (explanation of variance: 23%. Conclusion: Contrary to the expectations, classic work-related factors can hardly contribute to the explanation of mental health. Additionally, cardiovascular risk factors and health behaviour have no relevant influence. However, effort-reward-ratio, physical complaints and personal factors are of considerable influence on mental health in teachers. These relevant predictors should become a part of preventive arrangements for the conservation of teachers' health in the future.

  8. Predictors of agitation in critically ill adults.

    Science.gov (United States)

    Burk, Ruth S; Grap, Mary Jo; Munro, Cindy L; Schubert, Christine M; Sessler, Curtis N

    2014-09-01

    Agitation in critically ill adults is a frequent complication of hospitalization and results in multiple adverse outcomes. Potential causes of agitation are numerous; however, data on factors predictive of agitation are limited. To identify predictors of agitation by examining demographic and clinical characteristics of critically ill patients. A medical record review was performed. Documentation of agitation was indicated by scores on the Richmond Agitation-Sedation Scale or the use of an agitation keyword. Records of 200 patients from 1 medical and 1 surgical intensive care unit were used for the study. Risk factors were determined for 2 points in time: admission to the intensive care unit and within 24 hours before the first episode of agitation. Data on baseline demographics, preadmission risk factors, and clinical data were collected and were evaluated by using logistic multivariable regression to determine predictors of agitation. Predictors of agitation on admission to intensive care were history of use of illicit substances, height, respiratory and central nervous system subscores on the Sequential Organ Failure Assessment, and use of restraints. Predictors of agitation within 24 hours before the onset of agitation were history of psychiatric diagnosis, height, score on the Sequential Organ Failure Assessment, ratio of Pao2 to fraction of inspired oxygen less than 200, serum pH, percentage of hours with restraints, percentage of hours of mechanical ventilation, pain, and presence of genitourinary catheters. Predictors of agitation on admission and within 24 hours before the onset of agitation were primarily clinical variables. ©2014 American Association of Critical-Care Nurses.

  9. Evaluation of Common Predictors for Selection of Postdoctoral Dental Students.

    Science.gov (United States)

    Handelman, Stanley; And Others

    1983-01-01

    The relative value of academic standing, letters of recommendation, and personal interview impressions as predictors of performance during general dentistry training programs was assessed. Academic standing was the best predictor, with personal interview and recommendation letters next. (MSE)

  10. Some psychosocial predictors of anxiety disorder in epilepsy ...

    African Journals Online (AJOL)

    Some psychosocial predictors of anxiety disorder in epilepsy. A A Adesina, O A Afolabi, R O Ohwojero. Abstract. This study was designed to expose the variables or predictors that mediate in anxiety disorders among epileptics in Nigeria. Such variables or predictors are age, level of social support and perceived level of ...

  11. Adams Predictor-Corrector Systems for Solving Fuzzy Differential Equations

    Directory of Open Access Journals (Sweden)

    Dequan Shang

    2013-01-01

    Full Text Available A predictor-corrector algorithm and an improved predictor-corrector (IPC algorithm based on Adams method are proposed to solve first-order differential equations with fuzzy initial condition. These algorithms are generated by updating the Adams predictor-corrector method and their convergence is also analyzed. Finally, the proposed methods are illustrated by solving an example.

  12. Predictors of Wellness and American Indians

    Science.gov (United States)

    Hodge, Felicia S.; Nandy, Karabi

    2012-01-01

    Wellness is an important American Indian (AI) concept, understood as being in balance with one’s body, mind, and environment. Wellness predictors are reported in this paper within the context of health. A cross-sectional randomized household survey of 457 AI adults at 13 rural health care sites in California was conducted. Measures included wellness perceptions, barriers, health status/health conditions, spirituality, cultural connectivity, high-risk behaviors and abuse history. Statistical analysis obtained the best predictive model for wellness. Predictors of wellness were general health status perception, participation in AI cultural practices and suicide ideation. Significant differences in wellness status were observed depending on experience of adverse events in childhood and adulthood (neglect, physical abuse, and sexual abuse). Cultural connectivity (speaking tribal language, participating in AI practices, and feeling connected to community) was also associated with perceptions of wellness. Recommendations are for culturally-appropriate education and interventions emphasizing community and cultural connectivity for improving wellness status. PMID:21841279

  13. Predictors for trismus in patients receiving radiotherapy.

    Science.gov (United States)

    van der Geer, S Joyce; Kamstra, Jolanda I; Roodenburg, Jan L N; van Leeuwen, Marianne; Reintsema, Harry; Langendijk, Johannes A; Dijkstra, Pieter U

    2016-11-01

    Trismus, a restricted mouth opening in head and neck cancer patients may be caused by tumor infiltration in masticatory muscles, radiation-induced fibrosis or scarring after surgery. It may impede oral functioning severely. The aims of our study were to determine: (1) the incidence of trismus at various time points; and (2) the patient, tumor, and treatment characteristics that predict the development of trismus after radiotherapy in head and neck cancer patients using a large database (n = 641). Maximal mouth opening was measured prior to and 6, 12, 18, 24, 36, and 48 months after radiotherapy. Patient, tumor, and treatment characteristics were analyzed as potential predictors for trismus using a multivariable logistic regression analysis. At six months after radiotherapy, 28.1% of the patients without trismus prior to radiotherapy developed trismus for the first time. At subsequent time points the incidence declined. Over a total period of 48 months after radiotherapy, the incidence of trismus was 3.6 per 10 person years at risk. Patients who had tumors located in the oral cavity, oropharynx or nasopharynx, and the salivary glands or ear, and who had a longer overall treatment time of radiotherapy, were more likely to develop trismus in the first six months after radiotherapy. Maximal mouth opening was a predictor for developing trismus at all time points. Incidence of trismus is 3.6 per 10 person years at risk. Tumor localization and overall treatment time of radiotherapy are predictors for developing trismus the first six months after radiotherapy. Maximal mouth opening is a significant predictor for developing trismus at all time points. Regular measurements of maximal mouth opening are needed to predict trismus.

  14. [Predictors of Family Dysfunction among Adolescent Students].

    Science.gov (United States)

    Gómez-Bustamante, Edna Margarita; Castillo-Ávila, Irma; Cogollo, Zuleima

    2013-03-01

    Determination of family dysfunction predictors in adolescent students of Cartagena, Colombia. A cross-sectional analytical research was conducted by means of a probabilistic sample per conglomerate of high-school students. Participation of students between 13 and 17 years was requested. Family dysfunction was identified through the family APGAR scale. Predictors were adjusted by binary logistic regression. A total of 1,730 students agreed to participate, mean age was 14.7 years (SD=1.2), and 52.7% were girls. The family APGAR scale showed a Cronbach alpha of 0.78. A group of 896 students (51.8%) reported family dysfunction. Predictors of family dysfunction were: clinically significant depressive symptoms (OR=3.61; IC 95%: 2.31-5.63), low religiosity (OR=1.73; CI 95%: 1.41-2.13), non-nuclear family (OR=1.71, CI 95% 1.71-2.09) (OR=1.73, 95% CI 1.41-2.13), non-nuclear family (OR=1.71, 95%: CI 1.41-2.09), consumption of any illegal substance in their lives (OR=1.67, CI 95%: 1.15-2.13), residents of depressed neighborhoods (OR = 1.49; CI 95%: 1.19-1.87), and poor academic performance (OR=1.43; CI 95%: 1.15-1.76). Clinically significant depressive symptoms, low religiosity and non-nuclear family are the main predictors of family dysfunction among adolescent students in Cartagena, Colombia. The association is possibly bidirectional. Copyright © 2013 Asociación Colombiana de Psiquiatría. Publicado por Elsevier España. All rights reserved.

  15. Procrastination as a Predictor of Job Performance

    Science.gov (United States)

    1996-09-01

    4-5 4-6. Response Frequencies - Work Procrastination Scale .............................................. 4-7 4-7. Intercorrelation Matrix for the... procrastination . Ellis and Knaus (1977) proposed in their book, Overcoming Procrastination , that delays in completing isolated tasks are a universal... PROCRASTINATION AS A PREDICTOR OF JOB PERFORMANCE THESIS -I STEVEN L. DUTSCHMANN CC CAPTAIN, USAF AFITIGTMILAPJ96S-5 Z DEPARTMENT OF THE AIR FORCE

  16. Individual predictors of adolescents’ vocational interest stabilities

    OpenAIRE

    Hirschi, Andreas

    2010-01-01

    The study investigated the predictive utility of interest profile differentiation, coherence, elevation, congruence, and vocational identity commitment and career maturity (career planning and exploration) on the 10-month interest stability of 292 Swiss eighth-grade students: profile, rank, and level stabilities were assessed. Controlling for socio-demographic and vocational interest type variables, measures of differentiated and coherent vocational interests were significant predictors of pr...

  17. Crowdsourcing novel childhood predictors of adult obesity.

    Directory of Open Access Journals (Sweden)

    Kirsten E Bevelander

    Full Text Available Effective and simple screening tools are needed to detect behaviors that are established early in life and have a significant influence on weight gain later in life. Crowdsourcing could be a novel and potentially useful tool to assess childhood predictors of adult obesity. This exploratory study examined whether crowdsourcing could generate well-documented predictors in obesity research and, moreover, whether new directions for future research could be uncovered. Participants were recruited through social media to a question-generation website, on which they answered questions and were able to pose new questions that they thought could predict obesity. During the two weeks of data collection, 532 participants (62% female; age  =  26.5±6.7; BMI  =  29.0±7.0 registered on the website and suggested a total of 56 unique questions. Nineteen of these questions correlated with body mass index (BMI and covered several themes identified by prior research, such as parenting styles and healthy lifestyle. More importantly, participants were able to identify potential determinants that were related to a lower BMI, but have not been the subject of extensive research, such as parents packing their children's lunch to school or talking to them about nutrition. The findings indicate that crowdsourcing can reproduce already existing hypotheses and also generate ideas that are less well documented. The crowdsourced predictors discovered in this study emphasize the importance of family interventions to fight obesity. The questions generated by participants also suggest new ways to express known predictors.

  18. Crowdsourcing novel childhood predictors of adult obesity.

    Science.gov (United States)

    Bevelander, Kirsten E; Kaipainen, Kirsikka; Swain, Robert; Dohle, Simone; Bongard, Josh C; Hines, Paul D H; Wansink, Brian

    2014-01-01

    Effective and simple screening tools are needed to detect behaviors that are established early in life and have a significant influence on weight gain later in life. Crowdsourcing could be a novel and potentially useful tool to assess childhood predictors of adult obesity. This exploratory study examined whether crowdsourcing could generate well-documented predictors in obesity research and, moreover, whether new directions for future research could be uncovered. Participants were recruited through social media to a question-generation website, on which they answered questions and were able to pose new questions that they thought could predict obesity. During the two weeks of data collection, 532 participants (62% female; age  =  26.5±6.7; BMI  =  29.0±7.0) registered on the website and suggested a total of 56 unique questions. Nineteen of these questions correlated with body mass index (BMI) and covered several themes identified by prior research, such as parenting styles and healthy lifestyle. More importantly, participants were able to identify potential determinants that were related to a lower BMI, but have not been the subject of extensive research, such as parents packing their children's lunch to school or talking to them about nutrition. The findings indicate that crowdsourcing can reproduce already existing hypotheses and also generate ideas that are less well documented. The crowdsourced predictors discovered in this study emphasize the importance of family interventions to fight obesity. The questions generated by participants also suggest new ways to express known predictors.

  19. Predictors of intuitive eating in adolescent girls.

    Science.gov (United States)

    Andrew, Rachel; Tiggemann, Marika; Clark, Levina

    2015-02-01

    To examine proposed predictors of intuitive eating, including social appearance comparison, and to test a modified acceptance model of intuitive eating in adolescent girls. Participants were 400 adolescent girls aged 12-16 years who completed measures of body acceptance by others, self-objectification, social appearance comparison, body appreciation, and intuitive eating. Correlations showed that all proposed predictors were related to intuitive eating in the expected direction. In particular, social appearance comparison was negatively related to body appreciation and intuitive eating. After controlling for other predictors, social appearance comparison was shown to explain unique variance in intuitive eating. Using structural equation modeling, an integrated modified acceptance model of intuitive eating yielded an overall good fit to the data. Mediation analyses showed that there was a significant indirect effect of body acceptance by others on both body appreciation and intuitive eating through social appearance comparison and self-objectification. The findings extend the acceptance model of intuitive eating to adolescent girls but also identify social comparison as an important mechanism in this process. Practically, the findings highlight several areas that may be targeted to foster adaptive eating patterns in girls. Copyright © 2015 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

  20. Seasonal variation and predictors of epistaxis.

    Science.gov (United States)

    Purkey, Matthew R; Seeskin, Zachary; Chandra, Rakesh

    2014-09-01

    To examine the incidence of epistaxis as a function of season and age and to determine predictors of episodes within the epistaxis patient population presenting to a tertiary hospital system. Retrospective cohort study. Electronic medical record charts of patients presenting to the Northwestern Emergency Department, admitted to an inpatient ward, or seen in an outpatient setting between 2008 and 2012 were reviewed and selected for an International Classifications of Disease-Ninth Revision epistaxis code of 784.7. Season of presentation, demographic factors (age, race, gender, insurance status), medication use (including anticoagulants and topical nasal steroid administration), and several comorbidities were analyzed as potential predictors of episodes. A total of 2,405 patients were identified with a total of 3,666 individual epistaxis episodes over 5 years. Multivariate analysis identified allergic rhinitis (AR), chronic sinusitis (CRS), coagulopathy, hereditary hemorrhagic telangiectasia (HHT), hematologic malignancy, and hypertension (HTN) as predictors of a higher number of cases. Epistaxis occurred more frequently during colder months and in older patients. Epistaxis occurs more commonly during the winter and in older patients. AR, CRS, coagulopathy, HHT, hematologic malignancy, and HTN are associated with increased epistaxis incidence. © 2014 The American Laryngological, Rhinological and Otological Society, Inc.

  1. Braquiterapia intracoronariana. Tratamento da reestenose intra-stent com o sistema Beta-Cath: experiência inicial na América Latina Intracoronary brachytherapy. Treatment of in-stent restenosis with the Beta-Cath system: initial experience in Latin America

    Directory of Open Access Journals (Sweden)

    Juan Simon Muñoz

    2004-07-01

    Full Text Available OBJETIVO: Avaliar a segurança e eficácia da braquiterapia intracoronariana usando o sistema Beta-CathTM na prevenção da recorrência de restenose intra-stent (RIS, por meio da análise dos resultados clínicos, angiográficos e pelo ultra-som intracoronariano (USIC. MÉTODO: Foram submetidos à angioplastia com cateter-balão, seguida de beta-radiação intracoronariana com o sistema Beta-CathTM (90Sr/Y 30 pacientes com RIS em artérias coronárias nativas e, posteriormente, avaliados. RESULTADOS: Incluíram-se lesões reestenóticas complexas (77% do tipo difuso-proliferativo com extensão elevada (18,66±4,15 mm. O sucesso da braquiterapia foi de 100%. A dose média utilizada foi de 20,7±2,3 Gy, liberada em um período médio de 3,8±2,1 min. No seguimento tardio, o diâmetro luminal mínimo (DLM intra-stent diminuiu discretamente (1,98±0,30mm para 1,84±0,39 aos 6 meses, p=0,13, com uma perda tardia de 0,14±0,18 mm. O DLM intra-segmentar foi significativamente menor do que o intra-stent (1,55±0,40mm vs.1,84±0,39mm, p=0,008, associando-se à perda tardia (0,40±0,29mm vs. 0,14±0,18mm; p=0,0001. No USIC, observou-se discreto incremento do tecido neointimal em 6,8±14,3 mm³ aos 6 meses (p=0,19 e a percentagem de obstrução volumétrica aumentou em 4,7±7,5%. A reestenose binária e a revascularização do vaso-alvo recorreram em 17% dos casos; houve 1 caso (3% de oclusão tardia, associada a infarto do miocárdio. A sobrevida livre de eventos foi de 80%. CONCLUSÃO: O manejo da reestenose intra-stent com a beta-radiação intracoronariana mostrou-se procedimento seguro e eficaz, com alta taxa de sucesso imediato, representando uma opção terapêutica para a inibição da hiperplasia neointimal.OBJECTIVE: To assess the safety and efficacy of intracoronary brachytherapy using the Beta-Cath systemTM for preventing recurrence of in-stent restenosis (ISR, by analyzing clinical, angiographic, and intracoronary ultrasound (ICUS results

  2. Predictors of undiagnosed prevalent type 2 diabetes

    DEFF Research Database (Denmark)

    Heltberg, Andreas Søndergaard; Andersen, John Sahl; Sandholdt, Håkon

    2018-01-01

    AIMS: To investigate how self-reported risk factors (including socioeconomic status) predict undiagnosed, prevalent type 2 diabetes mellitus (T2DM). To externally validate Leicester Risk Assessment Score (LRAS), Finnish Diabetes Risk Score (FINDRISC) and Danish Diabetes Risk Score (DDRS...... prediction models reporting ROC-curves for undiagnosed T2DM, pre-diabetes and SCORE. RESULTS: More than 20% of people with T2DM were undiagnosed. The 7 most important self-rated predictors in sequential order were high BMI, antihypertensive-therapy, age, cardiovascular disease, waist-circumference, fitness...... are important risk factors for undiagnosed T2DM. LRAS performed better than DDRS and FINDRISC in prediction of undiagnosed T2DM and SCORE≥5%. SCORE performed best in predicting pre-diabetes. Copyright © 2017 Primary Care Diabetes Europe. Published by Elsevier Ltd. All rights reserve...

  3. Sports concussion: management and predictors of outcome.

    Science.gov (United States)

    Reddy, Cara Camiolo; Collins, Michael W

    2009-01-01

    Interest in sports concussion has grown widely in the last two decades among laypersons and medical professionals. Significant contributions of evidence-based research have led to a better understanding of this multifaceted, but still often elusive, injury. This information has transformed all aspects of concussion management, from on-field evaluation through return-to-play guidelines. The aim of this article is to highlight important research regarding predictors of outcome and treatment protocols. This research has been the basis of the paradigm shift from traditional concussion grading scales to individualized care. Today, concussion management requires a patient-centered approach with individualized assessment, including risk factor analysis, neurocognitive testing, and a thorough symptom evaluation.

  4. Psychological predictors of problem mobile phone use.

    Science.gov (United States)

    Bianchi, Adriana; Phillips, James G

    2005-02-01

    Mobile phone use is banned or illegal under certain circumstances and in some jurisdictions. Nevertheless, some people still use their mobile phones despite recognized safety concerns, legislation, and informal bans. Drawing potential predictors from the addiction literature, this study sought to predict usage and, specifically, problematic mobile phone use from extraversion, self-esteem, neuroticism, gender, and age. To measure problem use, the Mobile Phone Problem Use Scale was devised and validated as a reliable self-report instrument, against the Addiction Potential Scale and overall mobile phone usage levels. Problem use was a function of age, extraversion, and low self-esteem, but not neuroticism. As extraverts are more likely to take risks, and young drivers feature prominently in automobile accidents, this study supports community concerns about mobile phone use, and identifies groups that should be targeted in any intervention campaigns.

  5. Predictors of Resourcefulness in Preadolescent Children.

    Science.gov (United States)

    Wang, Ya-Fen; Zauszniewski, Jaclene A

    2017-03-01

    Resourcefulness is a set of cognitive-behavioral self-control skills for coping with stress to maintain quality of life. However, research examining precursors in the development of resourcefulness in preadolescents is scant. A cross-sectional approach was used to investigate hypothesized predicting effects of intrinsic contextual factors (children's age, gender, and school performance), extrinsic contextual factors (parents' age, gender, education, income, and resourcefulness), and process regulators (academic stress and dispositional optimism) in a convenience sample of 361 preadolescent-parent dyads. Results show that preadolescents' process regulators, academic stress, and dispositional optimism were significant predictors of resourcefulness. The findings suggest that preadolescents' resourcefulness was greatly influenced by process regulators, which are cognitive perceptions intervening the use of resourcefulness. Further research with various study designs is needed to examine additional factors that may influence resourcefulness in large and more diverse child-parent samples.

  6. Predictors of media multitasking in Chinese adolescents.

    Science.gov (United States)

    Yang, Xiaohui; Zhu, Liqi

    2016-12-01

    We examined predictors of media multitasking in Chinese adolescents from 3 contexts: characteristics of the media user, types of media use and family media contexts. Three hundred and twenty adolescents, 11-18 years of age, completed questionnaires to measure media use, impulsivity, sensation seeking, time management disposition and family media environment. The results showed that media multitasking was positively correlated with age and total media use time. Participants with high levels of impulsivity and sensation seeking reported more multitasking behaviour. Multitasking was negatively correlated with time management. Children from media-oriented families often engage in more multitasking. What's more, social networking sites use and music use can mediate the effect of individual and family factors on media multitasking. © 2015 International Union of Psychological Science.

  7. Infant SES as a predictor of personality

    DEFF Research Database (Denmark)

    Flensborg-Madsen, Trine; Mortensen, Erik Lykke

    2014-01-01

    revealed no direct effect of infant SES on any of the adult personality traits, but only indirect effects mediated by intelligence and years of education, with intelligence being the main mediating factor. CONCLUSION: Only weak associations were observed between infant SES and personality in young...... adulthood, and the observed associations were mediated by adult intelligence and educational level. Thus, factors associated with infant SES or family background appears to have weak direct effects on personality development.......BACKGROUND: Although research into the continuity and change of personality traits during a lifespan has been fairly extensive, little research has been conducted on childhood predictors of adult personality. PURPOSE: We aimed to investigate the association between infant socioeconomic status (SES...

  8. Predictors of excellent response to lithium

    DEFF Research Database (Denmark)

    Kessing, Lars Vedel; Hellmund, Gunnar; Andersen, Per Kragh

    2011-01-01

    The aim of this study was to identify sociodemographic and clinical predictors of excellent response, that is, 'cure' of future affective episodes, to lithium in monotherapy. We used nationwide registers to identify all patients with a diagnosis of bipolar disorder in psychiatric hospital settings...... who were prescribed lithium from 1995 to 2006 in Denmark (N=3762). Excellent lithium responders were defined as patients who after a stabilization lithium start-up period of 6 months, continued lithium in monotherapy without getting hospitalized. The rate of excellent response to lithium...... with somatic comorbidity had increased rates of non-response to lithium compared with patients without somatic comorbidity (HR=1.23, 95% CI: 1.00-1.52).It is concluded that the prevalence of excellent response to lithium monotherapy is low and such patients are characterized by few earlier psychiatric...

  9. Early predictors of high school mathematics achievement.

    Science.gov (United States)

    Siegler, Robert S; Duncan, Greg J; Davis-Kean, Pamela E; Duckworth, Kathryn; Claessens, Amy; Engel, Mimi; Susperreguy, Maria Ines; Chen, Meichu

    2012-07-01

    Identifying the types of mathematics content knowledge that are most predictive of students' long-term learning is essential for improving both theories of mathematical development and mathematics education. To identify these types of knowledge, we examined long-term predictors of high school students' knowledge of algebra and overall mathematics achievement. Analyses of large, nationally representative, longitudinal data sets from the United States and the United Kingdom revealed that elementary school students' knowledge of fractions and of division uniquely predicts those students' knowledge of algebra and overall mathematics achievement in high school, 5 or 6 years later, even after statistically controlling for other types of mathematical knowledge, general intellectual ability, working memory, and family income and education. Implications of these findings for understanding and improving mathematics learning are discussed.

  10. Multiple predictor smoothing methods for sensitivity analysis.

    Energy Technology Data Exchange (ETDEWEB)

    Helton, Jon Craig; Storlie, Curtis B.

    2006-08-01

    The use of multiple predictor smoothing methods in sampling-based sensitivity analyses of complex models is investigated. Specifically, sensitivity analysis procedures based on smoothing methods employing the stepwise application of the following nonparametric regression techniques are described: (1) locally weighted regression (LOESS), (2) additive models, (3) projection pursuit regression, and (4) recursive partitioning regression. The indicated procedures are illustrated with both simple test problems and results from a performance assessment for a radioactive waste disposal facility (i.e., the Waste Isolation Pilot Plant). As shown by the example illustrations, the use of smoothing procedures based on nonparametric regression techniques can yield more informative sensitivity analysis results than can be obtained with more traditional sensitivity analysis procedures based on linear regression, rank regression or quadratic regression when nonlinear relationships between model inputs and model predictions are present.

  11. Heteroscedasticity generated by errors in predictors

    Energy Technology Data Exchange (ETDEWEB)

    Downing, D.J.; Fedorov, V.V.; Nanstad, R.K.

    1995-11-01

    The heteroscedasticity or changing variance observed ``raw`` data may be the result of randomness or uncertainty in the predictor variables. As an example we consider ``Charpy Test`` experiments widely used to characterize the ductile-brittle toughness of steels such as those used for nuclear pressure vessels. While this type of experiment is of interest in itself, our main objective is to show that the use of a proper statistical technique may help to avoid the use of more complicated physical models to explain the heteroscedasticity of the observations. We also extend the existing method of regression analysis with errors in controllable variables to the case when the variances of the response and the controllable variables are both unknown.

  12. Desire thinking as a predictor of gambling.

    Science.gov (United States)

    Fernie, Bruce A; Caselli, Gabriele; Giustina, Lucia; Donato, Gilda; Marcotriggiani, Antonella; Spada, Marcantonio M

    2014-04-01

    Desire thinking is a voluntary cognitive process involving verbal and imaginal elaboration of a desired target. A desired target can relate to an object, an internal state or an activity, such as gambling. This study investigated the role of desire thinking in gambling in a cohort of participants recruited from community and clinical settings. Ninety five individuals completed a battery of self-report measures consisting of the Hospital Anxiety and Depression Scale (HADS), the Gambling Craving Scale (GCS), the Desire Thinking Questionnaire (DTQ) and the South Oaks Gambling Screen (SOGS). Correlation analyses revealed that gender, educational level, recruitment source, anxiety and depression, craving and desire thinking were correlated with gambling. A hierarchical multiple regression analysis revealed that both recruitment source and desire thinking were the only independent predictors of gambling when controlling for all other study variables, including craving. These findings are discussed in the light of metacognitive therapy (MCT). Copyright © 2014 Elsevier Ltd. All rights reserved.

  13. Early Predictors of Eating Problems in Preadolescence

    DEFF Research Database (Denmark)

    Munkholm, Anja; Olsen, Else Marie; Rask, Charlotte Ulrikka

    2016-01-01

    Purpose: The epidemiology of childhood eating problems is far from being fully described. The present study aims to explore early predictors of eating behavior problems in preadolescence. Methods: The study sample comprised 1,939 children from the birth cohort study, the Copenhagen Child Cohort...... (CCC2000). Logistic regression models were used to investigate associations among infancy health, developmental and relational factors, maternal mental health problems, socioeconomic factors, parental reported eating behavior patterns in preschool age and eating behavior problems in preadolescence....... Results: A number of factors expressing socioeconomic disadvantage across childhood were associated with an increased risk of eating behavior problems at age 11–12 years. In addition, overeating patterns at age 5–7 years predicted restrained eating in preadolescence (odds ratio [OR] = 2.77; 95% confidence...

  14. Predictors and Outcomes of Childhood Primary Enuresis.

    Science.gov (United States)

    Kessel, Ellen M; Allmann, Anna E S; Goldstein, Brandon L; Finsaas, Megan; Dougherty, Lea R; Bufferd, Sara J; Carlson, Gabrielle A; Klein, Daniel N

    2017-03-01

    Although enuresis is relatively common in early childhood, research exploring its antecedents and implications is surprisingly limited, perhaps because the condition typically remits in middle childhood. We examined the prevalence, predictors, prognostic factors, and outcomes of primary enuresis in a large (N = 559) multi-method, multi-informant prospective study with a community-based sample of children followed from age 3 years to age 9 years. We found that 12.7% of our sample met criteria for lifetime enuresis, suggesting that it is a commonly occurring childhood disorder. Males were more than twice as likely as females to have a lifetime diagnosis. Significant age 3 predictors of developing primary enuresis by age 9 included child anxiety and low positive affectivity, maternal history of anxiety, and low authoritative parenting. In addition, poorer global functioning and more depressive and anxiety symptoms at age 3 years predicted a greater likelihood of persistence through age 9. By age 9 years, 77% of children who had received a diagnosis of primary enuresis were in remission and continent. However, children who had remitted exhibited a higher rate of attention-deficit/hyperactivity disorder (ADHD) and greater ADHD and depressive symptoms at age 9 compared to children with no lifetime history of enuresis. Results of the present study underscore the clinical significance of primary enuresis and demonstrate that it shows both strong antecedent and prospective associations with psychopathology. The findings also highlight the possible role of parenting in the development of enuresis. Copyright © 2016 American Academy of Child and Adolescent Psychiatry. Published by Elsevier Inc. All rights reserved.

  15. Predictors of hyperparathyroidism in renal transplant recipients

    International Nuclear Information System (INIS)

    Houssaini, T.S.; Arrayahani, M.; Rhou, H.; Amar, Y.; Benamar, L.; Ouzeddoun, N.; Bayahia, R.

    2008-01-01

    The changes in parathyroid hormone secretion after successful renal transplantation remain to be clearly elucidated. Our study was aimed at identifying the predictors of hyperparathyroidism in renal transplant recipients. A retrospective single center study involving 37 renal transplant recipients, with a follow-up of at least one year, was performed. All transplants were performed using kidneys from living related donors. The average age of study patients was 30+-10 years, with a male-female ratio of 1.31. The mean duration on hemodialysis (HD) prior to transplantation was 25+-18 months. All the grafts but one were functional after a mean follow-up of 41+-21 months. We noted a rapid reduction of the mean parathyroid hormone (iPTH) level from 383+-265 pg/ml before transplantation to 125+-67 pg/ml at one year and 108+-66 pg/ml at two years after transplantation (p=0.01). Bivariate analysis revealed that the level of iPTH obtained during follow-up correlated with the duration on HD (p=0.03), the serum creatinine at 24-months (p=0.013), and to the level of iPTH in the first year post transplantation (P=<0.001). Other clinical or laboratory parameters were not predictive of hyperparathyroidism after kidney transplantation. Liner regression showed that only the serum creatinine at 24-months independently correlated with the level of iPTH at last follow-up (p=0.02). Our study suggests that short duration on HD and a functional graft are the main predictors of correction of hyperparathyroidism after renal transplantation. (author)

  16. Predictors of maternal mortality among critically ill obstetric patients

    African Journals Online (AJOL)

    et al.,15 that absence of prenatal care was a predictor of maternal mortality in critically ill obstetric patients, the booking status in this study was not a predictor of mortality. This could be because the delay in recognition of the need for ICU care and delays in presentation could have removed the otherwise expected beneficial ...

  17. Predictors of Outcomes in a Performance Ladder Program.

    Science.gov (United States)

    Dicks, Robert H.; McHenry, James D.

    1985-01-01

    Investigated variables from initial inmate evaluations at a state penitentiary as predictors of inmate success in behavioral ladder program. Results indicated that academic test variables were best predictors of overall success level, attitudes, and work habits. Personality variables and one interview observation variable were also found to be…

  18. Mathematical and Verbal Reasoning as Predictors of Science Achievement.

    Science.gov (United States)

    Gustin, William C.; Corazza, Luciano

    1994-01-01

    Analysis of the relative contribution of age, gender, and verbal and mathematical reasoning abilities (measured by subtests of the Scholastic Aptitude Test) as predictors of success in accelerated secondary science courses found that a composite of verbal and mathematical reasoning ability was the most powerful predictor and verbal reasoning…

  19. Some psychosocial predictors of anxiety disorder in epilepsy ...

    African Journals Online (AJOL)

    This study was designed to expose the variables or predictors that mediate in anxiety disorders among epileptics in Nigeria. Such variables or predictors are age, level of social support and perceived level of stigmatization were examined with reference to their roles in causing anxiety disorder among epileptics in Nigeria.

  20. Cancer-related fatigue : Predictors and effects of rehabilitation

    NARCIS (Netherlands)

    van Weert, Ellen; Hoekstra-Weebers, Josette; Otter, Renee; Postema, Klaas; Sanderman, Robbert; van der Schans, Cees

    Background. The aims of the study were to examine the effects of a multidimensional rehabilitation program on cancer-related fatigue, to examine concurrent predictors of fatigue, and to investigate whether change in fatigue over time was associated with change in predictors. Methods. Sample: 72

  1. Predictors of treatment success in smoking cessation with ...

    African Journals Online (AJOL)

    Background. Identification of the predictors of treatment success in smoking cessation may help healthcare workers to improve the effectiveness of attempts at quitting. Objective. To identify the predictors of success in a randomised controlled trial comparing varenicline alone or in combination with nicotine replacement ...

  2. Nonlinear Forecasting With Many Predictors Using Kernel Ridge Regression

    DEFF Research Database (Denmark)

    Exterkate, Peter; Groenen, Patrick J.F.; Heij, Christiaan

    This paper puts forward kernel ridge regression as an approach for forecasting with many predictors that are related nonlinearly to the target variable. In kernel ridge regression, the observed predictor variables are mapped nonlinearly into a high-dimensional space, where estimation of the predi...

  3. Prevalence patterns and predictors of alcohol use and abuse among ...

    African Journals Online (AJOL)

    Prevalence patterns and predictors of alcohol use and abuse among secondary school students in southern KwaZulu-Natal, South Africa: demographic factors and the influence of parents and peers. ... predictors and influence of peers and parents on students' alcohol use and binge drinking. Results: About 54% of students ...

  4. Job Involvement as a Predictor of Academic Performance.

    Science.gov (United States)

    Batlis, Nick C.

    1978-01-01

    A job involvement measure was altered to reflect academic involvement and was employed as a predictor of academic performance. Contrary to the findings of prior industrial research, involvement was found to be correlated neither with age nor with course satisfaction; however, it did prove an efficacious predictor of course grade. (Author/JKS)

  5. Selecting candidate predictor variables for the modelling of post ...

    African Journals Online (AJOL)

    Selecting candidate predictor variables for the modelling of post-discharge mortality from sepsis: a protocol development project. Afri. Health Sci. .... Initial list of candidate predictor variables, N=17. Clinical. Laboratory. Social/Demographic. Vital signs (HR, RR, BP, T). Hemoglobin. Age. Oxygen saturation. Blood culture. Sex.

  6. Personal And Organisational Variables As Predictors Of Unethical ...

    African Journals Online (AJOL)

    It was hypothesized that gender, family size, age, reward system, length of service and job security are not viable predictors of unethical behaviour in workplace environments. Results showed that gender, family size, job insecurity and perceived underpayment are viable predictors of unethical behaviour. Male employees ...

  7. Predictors of Reading Disability in Third through Fifth Grade Students

    Science.gov (United States)

    Magnuson, Cynthia L.

    2010-01-01

    The purpose of this dissertation was to explore the presence of predictors of reading disability in third through fifth grade students. This study used a quantitative methodology to analyze the relationship between the predictor variables of nonword repetition, vocabulary, syntax, morphology, and family history and the criterion variable of…

  8. Psychological Predictors of Anabolic Steroid Use: An Exploratory Study.

    Science.gov (United States)

    Schwerin, Michael J.; Corcoran, Kevin J.; LaFleur, Bonnie J.; Fisher, Leslee; Patterson, David; Olrich, Tracy

    1997-01-01

    Examined social physique anxiety, upper body esteem, social anxiety, and body dissatisfaction as possible predictors of anabolic steroid (AS) use. Results based on 185 AS-using bodybuilders and various control groups indicated that the upper body strength subscale of two measures, along with age, were significant predictors of AS use. (RJM)

  9. Bayesian modeling of measurement error in predictor variables

    NARCIS (Netherlands)

    Fox, Gerardus J.A.; Glas, Cornelis A.W.

    2003-01-01

    It is shown that measurement error in predictor variables can be modeled using item response theory (IRT). The predictor variables, that may be defined at any level of an hierarchical regression model, are treated as latent variables. The normal ogive model is used to describe the relation between

  10. Prevalence and predictors of smoking in Butajira town, Ethiopia ...

    African Journals Online (AJOL)

    Conclusions: Socio-demographic predictors of cigarette smoking in Butajira Ethiopia are different to those found in high income countries. The predictors found here suggest that increased taxation may be the most effective tobacco control measure in this low income country setting. Ethiopian Journal of Health Development ...

  11. Stroke mortality and its predictors in a Nigerian teaching hospital

    African Journals Online (AJOL)

    Abstract. Background: Stroke is the third leading cause of death worldwide. Stroke mortality has been noted to be higher in blacks in biracial studies. There have been few studies on stroke mortality and its predictors in Nigeria. This study examines mortality of stroke and its predictors in a Northern Nigerian teaching hospital.

  12. Stroke mortality and its predictors in a Nigerian teaching hospital ...

    African Journals Online (AJOL)

    Background: Stroke is the third leading cause of death worldwide. Stroke mortality has been noted to be higher in blacks in biracial studies. There have been few studies on stroke mortality and its predictors in Nigeria. This study examines mortality of stroke and its predictors in a Northern Nigerian teaching hospital.

  13. Prevalence and predictors of smoking in Butajira town, Ethiopia

    African Journals Online (AJOL)

    Preferred Customer

    Abstract. Background: In order to design effective tobacco control policy in low income countries, it is essential to understand smoking prevalence and predictors. In Ethiopia, most of what is known on the prevalence of smoking comes from studies in larger towns. Little is known about predictors of smoking in any Ethiopian ...

  14. Predictors of Vitamin D Deficiency in Predialysis Patients with Stage ...

    African Journals Online (AJOL)

    2017-12-05

    Dec 5, 2017 ... Female gender, hypoalbuminemia with serum albumin level <30.0 g/L, and severe damaged renal function with eGFR <30 ml/min/1.73 m2 are independent predictors of Vitamin D deficiency in predialysis patients with Stage 3–5 CKD. KEYWORDS: Chronic kidney disease, predialysis, predictors, Vitamin D ...

  15. Predictors of Sleep Quantity and Quality in College Students

    Science.gov (United States)

    Davidson, Eric S.

    2012-01-01

    Whereas sleep is often thought of as a common health issue among college students, few, if any, researchers have comprehensively evaluated correlates and predictors of sleep quality and quantity within this population. Most often, studies of this type are used by researchers to assess particular categories of correlates and predictors (e.g.,…

  16. Predictors of Service Utilization among Youth Diagnosed with Mood Disorders

    Science.gov (United States)

    Mendenhall, Amy N.

    2012-01-01

    In this study, I investigated patterns and predictors of service utilization for children with mood disorders. The Behavioral Model for Health Care Utilization was used as an organizing framework for identifying predictors of the number and quality of services utilized. Hierarchical regression was used in secondary data analyses of the…

  17. Clinical and psychosocial predictors of community reintegration of ...

    African Journals Online (AJOL)

    Background: There appears to be a dearth of published literature on the biopsychosocial predictors of community reintegration (CR) among stroke survivors. This study aims to investigate the clinical and psychosocial predictors of CR among stroke survivors three months post in-hospital discharge. Methods: Fifty-two stroke ...

  18. Predictors of Attitudes toward Seeking Counseling among International Students.

    Science.gov (United States)

    Komiya, Noboru; Eells, Gregory T.

    2001-01-01

    Investigates predictors of international students' (N=121) attitudes toward seeking counseling. Results indicate that being female, having greater openness to emotions, and having had prior counseling experience were significant predictors of more open attitudes toward seeking counseling. (Contains 27 references.) (GCP)

  19. Social predictors of caesarean section births in Italy | Kambale ...

    African Journals Online (AJOL)

    Background: Caesarean section birth is a frequent mode of delivery worldwide. Several social factors have been demonstrated to be strong predictors of caesarean births. Objectives: To identify possible social predictors of caesarean section births in Italy. Methods: Data for this study were drawn from the Italian Institute of ...

  20. Mean phase predictor for maximum a posteriori demodulator

    Science.gov (United States)

    Altes, Richard A. (Inventor)

    1996-01-01

    A system and method for optimal maximum a posteriori (MAP) demodulation using a novel mean phase predictor. The mean phase predictor conducts cumulative averaging over multiple blocks of phase samples to provide accurate prior mean phases, to be input into a MAP phase estimator.

  1. Predictors of Diabetic Retinopathy in Patients with Type 2 Diabetes ...

    African Journals Online (AJOL)

    Background: Microalbuminuria is an independent predictor of retinopathy, so absence of microalbuminuria may tend clinician not to screen for diabetic retinopathy (DR). Aim: The aim of our study was to estimate prevalence of DR in patients with type 2 diabetes who have normoalbuminuria, and to study predictors for DR, ...

  2. Nonlinear Forecasting with Many Predictors using Kernel Ridge Regression

    NARCIS (Netherlands)

    P. Exterkate (Peter); P.J.F. Groenen (Patrick); C. Heij (Christiaan); D.J.C. van Dijk (Dick)

    2011-01-01

    textabstractThis paper puts forward kernel ridge regression as an approach for forecasting with many predictors that are related nonlinearly to the target variable. In kernel ridge regression, the observed predictor variables are mapped nonlinearly into a high-dimensional space, where estimation of

  3. Predictors of Stress in Nigerian Executives | Adeoye | Nigerian ...

    African Journals Online (AJOL)

    prospects were the best predictor of stress in the executives, while \\"role\\" was the least. Also a combination of career prospects on one hand and home and private life on another hand resulted in more stress for the executives than any other combination. Middle - level managers were much affected by the predictor variable ...

  4. Predictors and protective factors for adolescent Internet victimization

    DEFF Research Database (Denmark)

    Helweg-Larsen, Karin; Schütt, Nina; Larsen, Helmer Bøving

    2012-01-01

    To examine the rate of Internet victimization in a nationally representative sample of adolescents aged 14-17 and to analyze predictors and protective factors for victimization.......To examine the rate of Internet victimization in a nationally representative sample of adolescents aged 14-17 and to analyze predictors and protective factors for victimization....

  5. Predictor feedback for delay systems implementations and approximations

    CERN Document Server

    Karafyllis, Iasson

    2017-01-01

    This monograph bridges the gap between the nonlinear predictor as a concept and as a practical tool, presenting a complete theory of the application of predictor feedback to time-invariant, uncertain systems with constant input delays and/or measurement delays. It supplies several methods for generating the necessary real-time solutions to the systems’ nonlinear differential equations, which the authors refer to as approximate predictors. Predictor feedback for linear time-invariant (LTI) systems is presented in Part I to provide a solid foundation on the necessary concepts, as LTI systems pose fewer technical difficulties than nonlinear systems. Part II extends all of the concepts to nonlinear time-invariant systems. Finally, Part III explores extensions of predictor feedback to systems described by integral delay equations and to discrete-time systems. The book’s core is the design of control and observer algorithms with which global stabilization, guaranteed in the previous literature with idealized (b...

  6. Predictors for secondary procedures in walking DDH.

    Science.gov (United States)

    Gholve, Purushottam A; Flynn, John M; Garner, Matthew R; Millis, Michael B; Kim, Young-Jo

    2012-01-01

    Persistent or recurrent hip dysplasia and/or loss of reduction can complicate the treatment of developmental dysplasia of the hip (DDH) in walking children. In this study, we identify predictors for secondary procedures after open reduction of the hip in walking children with DDH. We performed a retrospective study of walking children with idiopathic DDH treated with open reduction of the hip and followed up for >5 years. Perioperative factors were analyzed to investigate predictors of reoperation. Factors associated with the need for secondary procedures were identified. Acetabular remodeling was analyzed with a graphical plot of serial (0, 6 and 12 mo, and yearly) mean acetabular index and SD. There were 49 open reductions of the hip in 42 patients (34 female, 8 male) at a mean age of 31.3 months (range, 15.3 to 92.6 mo), with a mean follow-up of 9.7 years (5 to 16.9 y). Twelve (24%) patients had open reduction only, 15 (31%) had concurrent pelvic osteotomy, 4 (8%) had femoral osteotomy, and 18 (37%) had both femoral and pelvic osteotomy. Four (8%) patients required repeat open reduction at a mean of 5.1 months (range, 4 to 7.5 mo) after index surgery. Twenty-four (49%) patients had at least 1 secondary surgery for dysplasia at a mean of 3.2 years after index surgery. Six of the 24 (25%) had 2 and 2/24 (8.3%) had 3 additional operations. Of the 27 patients who did not have concurrent femoral osteotomy at index surgery, 19/27 (73%) required a secondary procedure; this significantly predicted the need for reoperation (P<0.001). Only 5/22 patients with femoral osteotomy at index surgery required a secondary procedure. Maximum acetabular remodeling was observed in the first 4 years after primary reduction, and the mean acetabular index remodeled from 43.9 to 20.3 degrees during this period. Forty-nine percent of the patients in this cohort required secondary procedures to treat hip dysplasia. Open reduction without concurrent femoral osteotomy strongly predicted the

  7. ToPs: Ensemble Learning With Trees of Predictors

    Science.gov (United States)

    Yoon, Jinsung; Zame, William R.; van der Schaar, Mihaela

    2018-04-01

    We present a new approach to ensemble learning. Our approach constructs a tree of subsets of the feature space and associates a predictor (predictive model) - determined by training one of a given family of base learners on an endogenously determined training set - to each node of the tree; we call the resulting object a tree of predictors. The (locally) optimal tree of predictors is derived recursively; each step involves jointly optimizing the split of the terminal nodes of the previous tree and the choice of learner and training set (hence predictor) for each set in the split. The feature vector of a new instance determines a unique path through the optimal tree of predictors; the final prediction aggregates the predictions of the predictors along this path. We derive loss bounds for the final predictor in terms of the Rademacher complexity of the base learners. We report the results of a number of experiments on a variety of datasets, showing that our approach provides statistically significant improvements over state-of-the-art machine learning algorithms, including various ensemble learning methods. Our approach works because it allows us to endogenously create more complex learners - when needed - and endogenously match both the learner and the training set to the characteristics of the dataset while still avoiding over-fitting.

  8. Elderly outpatient profile and predictors of falls.

    Science.gov (United States)

    Gomes, Grace Angélica de Oliveira; Cintra, Fernanda Aparecida; Batista, Fernanda Sotelo; Neri, Anita Liberalesso; Guariento, Maria Elena; Sousa, Maria da Luz Rosario de; D'Elboux, Maria José

    2013-01-01

    CONTEXT AND OBJECTIVES Falls are a serious public health problem and are one of the biggest reasons for hospitalization, morbidity and mortality among elderly people. Moreover, few studies on predictors of falls have been conducted in low and middle income countries. The aim here was to identify elderly outpatient profiles according to sociodemographic, clinical, physical and functional variables and correlate them with occurrences of falls among these subjects. DESIGN AND SETTING Cross-sectional descriptive study forming part of the project "Quality of Life of Frail Elderly People", carried out in Campinas, Brazil. METHODS The subjects were 145 elderly individuals (76.3 ± 7.8 years old), of whom 65% were women, who were living in the city of Campinas or nearby and were attended at the geriatric outpatient clinic of a University Hospital. Sociodemographic, clinical, physical and functional data, as well as fall occurrence data, were gathered. Cluster analyses and comparisons between groups were carried out. RESULTS Cluster analysis identified two distinct groups related to the study variables, and the determinants for this distinction were: gender, marital status, physical performance, handgrip strength and functional independence. These groups were compared according to occurrences of falls over the last year, and significant differences between them were found. CONCLUSIONS The results showed that greater occurrences of falls were associated with a profile of elderly people comprising female gender, single status, lower muscle strength and physical performance regarding balance and gait, and lower independence in motor tasks for activities of daily living.

  9. Elderly outpatient profile and predictors of falls

    Directory of Open Access Journals (Sweden)

    Grace Angélica de Oliveira Gomes

    Full Text Available CONTEXT AND OBJECTIVESFalls are a serious public health problem and are one of the biggest reasons for hospitalization, morbidity and mortality among elderly people. Moreover, few studies on predictors of falls have been conducted in low and middle income countries. The aim here was to identify elderly outpatient profiles according to sociodemographic, clinical, physical and functional variables and correlate them with occurrences of falls among these subjects.DESIGN AND SETTINGCross-sectional descriptive study forming part of the project “Quality of Life of Frail Elderly People”, carried out in Campinas, Brazil.METHODSThe subjects were 145 elderly individuals (76.3 ± 7.8 years old, of whom 65% were women, who were living in the city of Campinas or nearby and were attended at the geriatric outpatient clinic of a University Hospital. Sociodemographic, clinical, physical and functional data, as well as fall occurrence data, were gathered. Cluster analyses and comparisons between groups were carried out.RESULTSCluster analysis identified two distinct groups related to the study variables, and the determinants for this distinction were: gender, marital status, physical performance, handgrip strength and functional independence. These groups were compared according to occurrences of falls over the last year, and significant differences between them were found.CONCLUSIONSThe results showed that greater occurrences of falls were associated with a profile of elderly people comprising female gender, single status, lower muscle strength and physical performance regarding balance and gait, and lower independence in motor tasks for activities of daily living.

  10. Use of Postpartum Care: Predictors and Barriers

    Directory of Open Access Journals (Sweden)

    Jessica N. DiBari

    2014-01-01

    Full Text Available This study aimed to identify actual and perceived barriers to postpartum care among a probability sample of women who gave birth in Los Angeles County, California in 2007. Survey data from the 2007 Los Angeles Mommy and Baby (LAMB study (N = 4,075 were used to identify predictors and barriers to postpartum care use. The LAMB study was a cross-sectional, population-based study that examined maternal and child health outcomes during the preconception, prenatal, and postpartum periods. Multivariable analyses identified low income, being separated/divorced and never married, trying hard to get pregnant or trying to prevent pregnancy, Medi-Cal insurance holders, and lack of prenatal care to be risk factors of postpartum care nonuse, while Hispanic ethnicity was protective. The most commonly reported barriers to postpartum care use were feeling fine, being too busy with the baby, having other things going on, and a lack of need. Findings from this study can inform the development of interventions targeting subgroups at risk for not obtaining postpartum care. Community education and improved access to care can further increase the acceptability of postpartum visits and contribute to improvements in women’s health. Postpartum care can serve as a gateway to engage underserved populations in the continuum of women’s health care.

  11. Predictors of malignancy in primary aldosteronism.

    Science.gov (United States)

    Agha, Ayman; Hornung, Matthias; Iesalnieks, Igors; Schreyer, Andreas; Jung, Ernst Michael; Haneya, Assad; Schlitt, Hans J

    2014-01-01

    Primary aldosteronism (PA, also Conn syndrome) is a benign disease in majority of cases. However, malignant transformation has been described. Present study reports on three cases of aldosterone producing adrenocortical carcinoma (APAC) in comparison to patients with benign PA. Data of patients undergoing adrenalectomy for benign PA were compared to patients with APAC. Retrospective chart analysis was performed. All patients received spironolactone for 6-8 weeks preoperatively. Seventy-four patients underwent adrenalectomy for PA between 1994 and 2011. Three of them revealed an APAC. Patients with APAC presented with a significantly lower serum potassium level (1.7 mmol/l vs. 3.4 mmol/l, p = 0.001) and significant larger tumors (5.2 vs. 1.8 cm, p = 0.002). In addition, aldosterone/renin (A/R) ratio 675 in patients with APAC as compared to 74 in patients with benign PA (p = 0.0001). Sixty-eight of 71 patients with benign PA underwent minimal invasive surgery, whereas all three patients with APAC were operated conventionally. All patients with APAC developed disease recurrence 6-18 months postoperatively. Tumor size >4 cm and a very high A/R ratio seems to predictors of malignancy in patients with PA. If these criteria are present, open adrenalectomy should be performed instead of endoscopic procedure.

  12. Spirituality: an overlooked predictor of placebo effects?

    Science.gov (United States)

    Kohls, Nikola; Sauer, Sebastian; Offenbächer, Martin; Giordano, James

    2011-06-27

    Empirical findings have identified spirituality as a potential health resource. Whereas older research has associated such effects with the social component of religion, newer conceptualizations propose that spiritual experiences and the intrapersonal effects that are facilitated by regular spiritual practice might be pivotal to understanding potential salutogenesis. Ongoing studies suggest that spiritual experiences and practices involve a variety of neural systems that may facilitate neural 'top-down' effects that are comparable if not identical to those engaged in placebo responses. As meaningfulness seems to be both a hallmark of spirituality and placebo reactions, it may be regarded as an overarching psychological concept that is important to engaging and facilitating psychophysiological mechanisms that are involved in health-related effects. Empirical evidence suggests that spirituality may under certain conditions be a predictor of placebo response and effects. Assessment of patients' spirituality and making use of various resources to accommodate patients' spiritual needs reflect our most current understanding of the physiological, psychological and socio-cultural aspects of spirituality, and may also increase the likelihood of eliciting self-healing processes. We advocate the position that a research agenda addressing responses and effects of both placebo and spirituality could therefore be (i) synergistic, (ii) valuable to each phenomenon on its own, and (iii) contributory to an extended placebo paradigm that is centred around the concept of meaningfulness.

  13. Use of postpartum care: predictors and barriers.

    Science.gov (United States)

    DiBari, Jessica N; Yu, Stella M; Chao, Shin M; Lu, Michael C

    2014-01-01

    This study aimed to identify actual and perceived barriers to postpartum care among a probability sample of women who gave birth in Los Angeles County, California in 2007. Survey data from the 2007 Los Angeles Mommy and Baby (LAMB) study (N = 4,075) were used to identify predictors and barriers to postpartum care use. The LAMB study was a cross-sectional, population-based study that examined maternal and child health outcomes during the preconception, prenatal, and postpartum periods. Multivariable analyses identified low income, being separated/divorced and never married, trying hard to get pregnant or trying to prevent pregnancy, Medi-Cal insurance holders, and lack of prenatal care to be risk factors of postpartum care nonuse, while Hispanic ethnicity was protective. The most commonly reported barriers to postpartum care use were feeling fine, being too busy with the baby, having other things going on, and a lack of need. Findings from this study can inform the development of interventions targeting subgroups at risk for not obtaining postpartum care. Community education and improved access to care can further increase the acceptability of postpartum visits and contribute to improvements in women's health. Postpartum care can serve as a gateway to engage underserved populations in the continuum of women's health care.

  14. Dyspnea as an Independent Predictor of Mortality

    Science.gov (United States)

    Pesola, Gene R.; Ahsan, Habibul

    2014-01-01

    Background Dyspnea is a common and easily elicited presenting complaint in patients seen by physicians who evaluate and take care of chronic respiratory disorders. Although dyspnea is subjective and tends to increase with age or reduced lung function, it appears to be reproducible as a symptom and often signifies serious underlying disease. Methods Systematic review of longitudinal studies with dyspnea as the exposure and mortality as the outcome; age, smoking, and lung function had to be controlled for to be included in the review. In addition, a minimum sample size at baseline of 500 subjects was required for each study. Results From over 3,000 potential references ten longitudinal studies met all criteria and were included. All ten studies suggested that dyspnea was an independent predictor of mortality with point estimates by odds ratio, rate ratio, or hazard ratios ranging from 1.3 up to 2.9-fold greater than baseline. All ten studies had actual or implied 95% confidence interval bands greater than the null value of one. Conclusion Dyspnea, a symptom, predicts mortality and is a proxy for underlying diseases, most often of heart and lung. Therefore, chronic dyspnea needs to be evaluated as to etiology to allow for treatment to minimize morbidity and mortality when possible. PMID:25070878

  15. Preschool Predictors of Kindergarten Language Outcomes

    Directory of Open Access Journals (Sweden)

    Anne Walk

    2015-01-01

    Full Text Available The aim of the present study is to explore a variety of cognitive and social variables which are most relevant to children’s linguistic success in an educational setting. The study examines kindergarten English language outcomes in classrooms containing monolingual English speaking children and bilingual children who speak English and one other language. Data from the National Center for Early Development and Learning Multistate Study of Pre-Kindergarten (2001-2003 regarding classroom and student characteristics were used for bilingual (N = 120 and monolingual (N = 534 children. Hierarchical regression analysis (Study 1 and path analysis (Study 2 were conducted to determine the cognitive and social variables present in preschool that are most predictive of English skills in kindergarten. The results of the studies demonstrate that social variables were important for both monolingual and bilingual children. Personality variables were more predictive for monolingual children, whereas teacher relationship variables were more important for bilingual children. Simple and routine adult interaction was predictive of English skills in both groups, which may indicate the importance of implicit learning over explicit instruction in early language acquisition. The present studies found different predictors of English language skills for monolingual and bilingual kindergarteners.

  16. Predictors of slow colonic transit in children.

    Science.gov (United States)

    Ridha, Zainab; Quinn, Rakesh; Croaker, Geoffrey David Hain

    2015-02-01

    Slow transit constipation (STC) and functional fecal retention (FFR) are two forms of severe intractable constipation in childhood diagnosed by nuclear transit studies (NTS). This retrospective study aims to identify the predicting factors for STC and FFR by looking at the association with neuropsychiatric disorders (NPD), obesity, family history of constipation and atopic disease. A retrospective chart review was conducted on children with intractable constipation referred for NTS between 1st April 2003 and 1st April 2014. Comparisons were made between STC, FFR and normal transit patients with regards to NPD, obesity (BMI z score >95th percentile), family history of constipation in first and second-degree relatives and atopic disease which included food allergy, asthma and eczema. Between 2003 and 2014, 97 patients were referred for a NTS. Out of 36 patients with NPD, 21 (58.3 %) had STC and 13 (36.1 %) had FFR (p < 0.05). 15.8 % of patients with constipation were obese, compared to 6.4 % in the general Australian paediatric population (p < 0.05). There was no significant association between constipation and atopic disease or family history. Neuropsychiatric disorders, in particular autism, are useful predictors of STC and FFR in children. Obesity may be associated with a higher risk of developing chronic constipation.

  17. Predictors of Stress in College Students.

    Science.gov (United States)

    Saleh, Dalia; Camart, Nathalie; Romo, Lucia

    2017-01-01

    University students often face different stressful situations and preoccupations: the first contact with the university, the freedom of schedule organization, the selection of their master's degree, very selective fields, etc. The purpose of this study is to evaluate a model of vulnerability to stress in French college students. Stress factors were evaluated by a battery of six scales that was accessible online during 3 months. A total of 483 students, aged between 18 and 24 years (Mean = 20.23, standard deviation = 1.99), was included in the study. The results showed that 72.9, 86.3, and 79.3% of them were suffering from psychological distress, anxiety and depressive symptoms, respectively. More than half the sample was also suffering from low self-esteem (57.6%), little optimism (56.7%), and a low sense of self-efficacy (62.7%). Regression analyses revealed that life satisfaction, self-esteem, optimism, self-efficacy and psychological distress were the most important predictors of stress. These findings allow us to better understand stress-vulnerability factors in students and drive us to substantially consider them in prevention programs.

  18. Socioeconomic factors as predictors of organ donation.

    Science.gov (United States)

    Shah, Malay B; Vilchez, Valery; Goble, Adam; Daily, Michael F; Berger, Jonathan C; Gedaly, Roberto; DuBay, Derek A

    2018-01-01

    Despite numerous initiatives to increase solid organs for transplant, the gap between donors and recipients widens. There is little in the literature identifying socioeconomic predictors for donation. We evaluate the correlation between socioeconomic factors and familial authorization for donation. A retrospective analysis of adult potential donor referrals between 2007 and 2012 to our organ procurement organization (OPO) was performed. Potential donor information was obtained from the OPO database, death certificates, and the US Census Report. Data on demographics, education, residence, income, registry status, cause and manner of death, as well as OPO assessments and approach for donation were collected. End point was familial authorization for donation. A total of 1059 potential donors were included, with an overall authorization rate of 47%. The majority was not on the donor registry (73%). Younger donors (18-39 y: odds ratio [OR] = 4.9, P donation first mentioned by the local health care provider (OR = 1.8, P = 0.01) were also independently associated with higher authorization rates. Donor registration correlated most strongly with the highest authorization rates. These results indicate that public educational efforts in populations with unfavorable socioeconomic considerations may be beneficial in improving donor registration. Collaborations with local providers as well as OPO in-hospital assessments and approach techniques can help with improving authorization rates. Copyright © 2017 Elsevier Inc. All rights reserved.

  19. Spirituality: an overlooked predictor of placebo effects?

    Science.gov (United States)

    Kohls, Nikola; Sauer, Sebastian; Offenbächer, Martin; Giordano, James

    2011-01-01

    Empirical findings have identified spirituality as a potential health resource. Whereas older research has associated such effects with the social component of religion, newer conceptualizations propose that spiritual experiences and the intrapersonal effects that are facilitated by regular spiritual practice might be pivotal to understanding potential salutogenesis. Ongoing studies suggest that spiritual experiences and practices involve a variety of neural systems that may facilitate neural ‘top-down’ effects that are comparable if not identical to those engaged in placebo responses. As meaningfulness seems to be both a hallmark of spirituality and placebo reactions, it may be regarded as an overarching psychological concept that is important to engaging and facilitating psychophysiological mechanisms that are involved in health-related effects. Empirical evidence suggests that spirituality may under certain conditions be a predictor of placebo response and effects. Assessment of patients' spirituality and making use of various resources to accommodate patients' spiritual needs reflect our most current understanding of the physiological, psychological and socio-cultural aspects of spirituality, and may also increase the likelihood of eliciting self-healing processes. We advocate the position that a research agenda addressing responses and effects of both placebo and spirituality could therefore be (i) synergistic, (ii) valuable to each phenomenon on its own, and (iii) contributory to an extended placebo paradigm that is centred around the concept of meaningfulness. PMID:21576141

  20. Truncated predictor feedback for time-delay systems

    CERN Document Server

    Zhou, Bin

    2014-01-01

    This book provides a systematic approach to the design of predictor based controllers for (time-varying) linear systems with either (time-varying) input or state delays. Differently from those traditional predictor based controllers, which are infinite-dimensional static feedback laws and may cause difficulties in their practical implementation, this book develops a truncated predictor feedback (TPF) which involves only finite dimensional static state feedback. Features and topics: A novel approach referred to as truncated predictor feedback for the stabilization of (time-varying) time-delay systems in both the continuous-time setting and the discrete-time setting is built systematically Semi-global and global stabilization problems of linear time-delay systems subject to either magnitude saturation or energy constraints are solved in a systematic manner Both stabilization of a single system and consensus of a group of systems (multi-agent systems) are treated in a unified manner by applying the truncated pre...

  1. The University Matriculation Examination as a Predictor of ...

    African Journals Online (AJOL)

    The University Matriculation Examination as a Predictor of Performance in Post University Matriculation Examination: a Model for Educational development in the 21st Century. SO Uhunmwuangho, O Ogunbadeniyi ...

  2. Multiple Imputation of Predictor Variables Using Generalized Additive Models

    NARCIS (Netherlands)

    de Jong, Roel; van Buuren, Stef; Spiess, Martin

    2016-01-01

    The sensitivity of multiple imputation methods to deviations from their distributional assumptions is investigated using simulations, where the parameters of scientific interest are the coefficients of a linear regression model, and values in predictor variables are missing at random. The

  3. Patterns and predictors of exclusive breastfeeding among mothers ...

    African Journals Online (AJOL)

    Patterns and predictors of exclusive breastfeeding among mothers in Ile Ife, Nigeria. Funmito O. Fehintola, Akintunde O. Fehintola, Olorunfemi Ogundele, Olumuyiwa A. Ogunlaja, Timothy O. Awotunde, Olufemi Aworinde, Idowu P. Ogunlaja ...

  4. Importance of predictor variables for models of chemical function

    Data.gov (United States)

    U.S. Environmental Protection Agency — Importance of random forest predictors for all classification models of chemical function. This dataset is associated with the following publication: Isaacs , K., M....

  5. Circulating cell free DNA as a predictor of systemic lupus ...

    African Journals Online (AJOL)

    Circulating cell free DNA as a predictor of systemic lupus erythematosus severity and monitoring of therapy. Olfat M. Hendy, Tawfik Abdel Motalib, Mona A. El Shafie, Fatma A. Khalaf, Sobhy E. Kotb, Aziza Khalil, Salwa R. Ali ...

  6. Gender and distance influence performance predictors in young swimmers

    Directory of Open Access Journals (Sweden)

    Paulo Victor Mezzaroba

    2013-12-01

    Full Text Available Predictors of performance in adult swimmers are constantly changing during youth especially because the training routine begins even before puberty in the modality. Therefore this study aimed to determine the group of parameters that best predict short and middle swimming distance performances of young swimmers of both genders. Thirty-three 10-to 16-years-old male and female competitive swimmers participated in the study. Multiple linear regression (MLR was used considering mean speed of maximum 100, 200 and 400 m efforts as dependent variables, and five parameters groups as possible predictors (anthropometry, body composition, physiological and biomechanical parameters, chronological age/pubic hair. The main results revealed explanatory powers of almost 100% for both genders and all performances, but with different predictors entered in MLR models of each parameter group or all variables. Thus, there are considerable differences in short and middle swimming distance, and males and females predictors that should be considered in training programs.

  7. Post-operative pain prevalence, predictors, management practices ...

    African Journals Online (AJOL)

    MWASHAMBWA

    range= 14–80 years). The prevalence ... delayed wound healing, transition to chronic pain, reduced vital capacity and alveolar ventilation, pneumonia ... The most common predictors of severe pain reported include female sex, young age, high.

  8. Executive functions as predictors of math learning disabilities

    NARCIS (Netherlands)

    Toll, S.W.M.; van der Ven, S.H.G.; Kroesbergen, E.H.; van Luit, J.E.H.

    2011-01-01

    In the past years, an increasing number of studies have investigated executive functions as predictors of individual differences in mathematical abilities. The present longitudinal study was designed to investigate whether the executive functions shifting, inhibition, and working memory differ

  9. Microalbuminuria in pregnancy as a predictor of preeclampsia and ...

    African Journals Online (AJOL)

    Microalbuminuria in pregnancy as a predictor of preeclampsia and eclampsia. Babatunde L. Salako, Oladapo Olayemi, Akin-Tunde A. Odukogbe, Kayode S. Adedapo, Chris O. Aimakhu, Francis E. Alu, Bola Ola ...

  10. Predictors of severe complications in intracranial meningioma surgery

    DEFF Research Database (Denmark)

    Bartek, Jiri; Sjåvik, Kristin; Förander, Petter

    2015-01-01

    OBJECTIVE: To investigate predictors of complications after intracranial meningioma resection using a standardized reporting system for adverse events. METHODS: A retrospective review was conducted in a Scandinavian population-based cohort of 979 adult operations for intracranial meningioma perfo...

  11. Clinical Profile and Predictors of Severe Illness in young South ...

    African Journals Online (AJOL)

    -drawing are useful predictors of severity of illness as well as effective and safe tools for triaging o f young infants for urgent hospital management at primary care centres. Neonatal hyperbilirubinaemia, pneumonia and sepsis are the common

  12. Echocardiographic predictors of atrial fibrillation after mitral valve replacement

    Directory of Open Access Journals (Sweden)

    Al-Shimaa Mohamed Sabry

    2017-12-01

    Conclusion: LA systolic strain and LV global longitudinal strain were significant predictors of POAF. Echocardiographic parameters can identify patients at greater risk of developing POAF who can benefit from preventive measure and guide the selection of prosthesis.

  13. Admission Hyperglycemia an Independent Predictor of Outcome in ...

    African Journals Online (AJOL)

    2017-05-22

    May 22, 2017 ... Hyperglycemia at stroke onset without prior history of diabetes mellitus have particularly poor prognosis, than those with hyperglycemia in known diabetes. KEYWORDS: Acute ischemic stroke, diabetes mellitus, stress hyperglycemia. Admission Hyperglycemia an Independent Predictor of Outcome in.

  14. Diabetic retinopathy: A predictor of coronary artery disease

    Directory of Open Access Journals (Sweden)

    Fawzia El Demerdash

    2012-06-01

    Conclusion: Diabetic retinopathy is a good predictor of coronary artery disease that exceeds the conventional risk factors. Diabetics with retinopathy would benefit from early coronary angiography and diabetic retinocoronary clinics are warranted.

  15. Noninvasive Ventilation Intolerance: Characteristics, Predictors, and Outcomes.

    Science.gov (United States)

    Liu, Jinhua; Duan, Jun; Bai, Linfu; Zhou, Lintong

    2016-03-01

    Noninvasive ventilation (NIV) intolerance is one reason for NIV failure. However, the characteristics, predictors, and outcomes of NIV intolerance are unclear. A prospective observational study was performed in the respiratory intensive care unit of a teaching hospital. Subjects with acute respiratory failure who used NIV were enrolled. Initially, continuous use of NIV was encouraged. However, if the subject could not tolerate NIV, it was used intermittently. NIV intolerance was defined as termination of NIV due to subject refusal to receive it because of discomfort, even after intermittent use was attempted. A total of 961 subjects were enrolled in the study. Of these, 50 subjects (5.2%) experienced NIV intolerance after a median 2.4 h of NIV support. Age (OR = 0.98, 95% CI 0.963-0.996) and heart rate (OR = 1.02, 95% CI 1.006-1.030) measured before NIV were 2 independent risk factors of NIV intolerance. After 1-2 h of NIV, independent risk factors of NIV intolerance were heart rate (OR = 1.03, 95% CI 1.016-1.044) and breathing frequency (OR = 1.06, 95% CI 1.027-1.099). Intolerant subjects had no improvement in mean arterial pressure, heart rate, or breathing frequency after the NIV intervention. Moreover, intolerant subjects had a higher intubation rate (44.0% vs 25.8%, P = .008) and higher mortality (34.0% vs 22.4%, P = .08). The three most common complaints were that NIV worsened subjects' distress (46%), that NIV resulted in dyspnea (26%), and that the flow or pressure of NIV was too strong to bear (16%). NIV intolerance worsened subjects' outcomes. Younger subjects with a high heart rate and breathing frequency may be more likely to experience NIV intolerance. Copyright © 2016 by Daedalus Enterprises.

  16. Predictors of Nondiagnostic Ultrasound for Appendicitis.

    Science.gov (United States)

    Keller, Christine; Wang, Nancy E; Imler, Daniel L; Vasanawala, Shreyas S; Bruzoni, Matias; Quinn, James V

    2017-03-01

    Ionizing radiation and cost make ultrasound (US), when available, the first imaging study for the diagnosis of suspected pediatric appendicitis. US is less sensitive and specific than computed tomography (CT) or magnetic resonance imaging (MRI) scans, which are often performed after nondiagnostic US. We sought to determine predictors of nondiagnostic US in order to guide efficient ordering of imaging studies. A prospective cohort study of consecutive patients 4 to 30 years of age with suspected appendicitis took place at an emergency department with access to 24/7 US, MRI, and CT capabilities. Patients with US as their initial study were identified. Clinical (i.e., duration of illness, highest fever, and right lower quadrant pain) and demographic (i.e., age and sex) variables were collected. Body mass index (BMI) was calculated based on Centers for Disease Control and Prevention criteria; BMI >85th percentile was categorized as overweight. Patients were followed until day 7. Univariate and stepwise multivariate logistic regression analysis was performed. Over 3 months, 106 patients had US first for suspected appendicitis; 52 (49%) had nondiagnostic US results. Eighteen patients had appendicitis, and there were no missed cases after discharge. On univariate analysis, male sex, a yearly increase in age, and overweight BMI were associated with nondiagnostic US (p appendicitis, and it may be more efficient to consider alternatives to US first for these patients. Also, this information about the accuracy of US to diagnose suspected appendicitis may be useful to clinicians who wish to engage in shared decision-making with the parents or guardians of children regarding imaging options for children with acute abdominal pain. Copyright © 2016 Elsevier Inc. All rights reserved.

  17. Cognitive predictors of success in learning Russian.

    Directory of Open Access Journals (Sweden)

    Verbitskaya, L.A.

    2015-07-01

    Full Text Available This study examines the role of cognitive characteristics in the success in learning Russian, assessed through teachers’ grades and test scores on standardized state exams. This paper examines the relationship between cognitive characteristics, such as nonverbal intelligence, working memory and speed of information processing, and the results of the Unified State Exam for 11th grade students, the Basic State Exam for 9th grade students and the traditional assessment of Russian language learning. This study involved students in the 9th and 11th grades from four educational institutions in the Moscow and St. Petersburg regions; 427 students were studying in the 9th grade (50.3% were boys and 398 students were studying in the 11th grade (44.8% were boys. This study concluded that expert assessment of Russian language learning is more associated with successful test scores on the Unified State Exam (r = 0.71, p < 0.01 than with the results of the Basic State Exam (r = 0.46, р < 0.01. This study showed that at the lower and upper levels of secondary education, nonverbal intelligence is a significant predictor of success in learning the Russian language according to expert estimates. In addition, we found differences in the relationship between cognitive performance and success in learning the Russian language as assessed by tests. Nonverbal intelligence contributes significantly to individual differences in scores for the Unified State Exam in Russian, while the contribution of cognitive characteristics on the Basic State Exam is not statistically significant.

  18. Ketogenic diet: Predictors of seizure control

    Science.gov (United States)

    Agarwal, Nitin; Arkilo, Dimitrios; Farooq, Osman; Gillogly, Cynthia; Kavak, Katelyn S; Weinstock, Arie

    2017-01-01

    Background: The ketogenic diet is an effective non-pharmacologic treatment for medically resistant epilepsy. The aim of this study was to identify any predictors that may influence the response of ketogenic diet. Methods: A retrospective chart review for all patients with medically resistant epilepsy was performed at a tertiary care epilepsy center from 1996 to 2012. Patient- and diet-related variables were evaluated with respect to seizure reduction at 1, 3, 6, 9 and 12-month intervals and divided into four possible outcome classes. Results: Sixty-three patients met inclusion. Thirty-seven (59%) reported >50% seizure reduction at 3 months with 44% and 37% patients benefiting at 6-month and 12-month follow up, respectively. A trend toward significant seizure improvement was noted in 48% patients with seizure onset >1 year at 12-month (p = 0.09) interval and in 62% patients with >10 seizure/day at 6-month interval (p = 0.054). An ordinal logistic regression showed later age of seizure to have higher odds of favorable response at 1-month (p = 0.005) and 3-month (p = 0.013) follow up. Patients with non-fasting diet induction were more likely to have a favorable outcome at 6 months (p = 0.008) as do females (p = 0.037) and those treated with higher fat ratio diet (p = 0.034). Conclusion: Our study reports the effectiveness of ketogenic diet in children with medically resistant epilepsy. Later age of seizure onset, female gender, higher ketogenic diet ratio and non-fasting induction were associated with better odds of improved seizure outcome. A larger cohort is required to confirm these findings. PMID:28620490

  19. Predictors of Ramadan fasting during pregnancy.

    Science.gov (United States)

    van Bilsen, Lily A; Savitri, Ary I; Amelia, Dwirani; Baharuddin, Mohammad; Grobbee, Diederick E; Uiterwaal, Cuno S P M

    2016-12-01

    Although the health effects of Ramadan fasting during pregnancy are still unclear, it is important to identify the predictors and motivational factors involved in women's decision to observe the fast. We investigated these factors in a cross sectional study of 187 pregnant Muslim women who attended antenatal care visits in the Budi Kemuliaan Hospital, Jakarta, Indonesia. The odds of adherence to fasting were reduced by 4% for every week increase in gestational age during Ramadan [odds ratio (OR) 0.96; 95% confidence interval (CI) 0.92, 1.00; p=0.06] and increased by 10% for every one unit increase of women's prepregnancy body mass index (BMI) (OR 1.10; 95% CI 0.99, 1.23; p=0.08). Nonparticipation was associated with opposition from husbands (OR 0.34; 95% CI 0.14, 0.82; p=0.02) and with women's fear of possible adverse effects of fasting on their own or the baby's health (OR 0.47; 95% CI 0.22, 1.01; p=0.05 and OR 0.43; 95% CI 0.21, 0.89; p=0.02, respectively), although they were attenuated in multivariable analysis. Neither age, income, education, employment, parity, experience of morning sickness, nor fasting during pregnancy outside of Ramadan determined fasting during pregnancy. Linear regression analysis within women who fasted showed that the number of days fasted were inversely associated with women's gestational age, fear of possible adverse effects of fasting on their own or the fetal health, and with opposition from husbands. In conclusion, earlier gestational age during Ramadan, husband's opinion and possibly higher prepregnancy BMI, influence women's adherence to Ramadan fasting during pregnancy. Fear of adverse health effects of Ramadan fasting is common in both fasting and non-fasting pregnant women. Copyright © 2016 Ministry of Health, Saudi Arabia. Published by Elsevier Ltd. All rights reserved.

  20. Predictors of stroke - associated mortality in Africans.

    Science.gov (United States)

    Longo-Mbenza, B; Tonduangu, K; Muyeno, K; Phanzu, M; Kebolo Baku, A; Muvova, D; Lelo, T; Odio, W; Lukoki, L; Bikangi Nkiabungu, F; Kilembe, M; Tshiamala, P; Katalay, L; Mwema, M; Muyembe, T

    2000-01-01

    The objective of the study was to examine the association of the stroke-related mortality with gender, age, ethnicity, social class, blood pressure, fibrinogen, selected clinical data and meteorologic parameters in hospitalized Africans. A series of 1032 consecutively hospitalized incident cases of acute stroke between 1987 and 1991 was studied. Univariate and multivariate analyses were used to estimate the risk (odds ratio=OR) of stroke mortality for meteorologic parameters on the month before the accident onset and selected sociodemophysiological variables on the day of admission. The variables significantly associated with stroke mortality in multivariate analysis were male sex (OR= 2.3 [1.3 - 4.1]), low social class (OR= 2.0 [1.2 - 4.0]), migrant tribes (OR= 1.7 [1.5 - 1.8]), ischemic stroke (OR= 1.4 [1.2 - 1.6]), heart rate >=100 bpm (OR= 1.1 [1.0 - 1.2]), age > or =60 years (OR= 1.03 [1.01 - 1.06]), systolic blood pressure> 160 mmHg (OR= 1. 02 [1.01 - 1.03]), and fibrinogen > or =400 mg/dl (OR= 1.01 [1.002 - 1. 02]). However, diastolic blood pressure > 90 mmHg and global radiation< 340 Cal/cm(2)/day were significantly (p< 0.05) and inversely associated with stroke mortality. Our results indicate that male sex, older age, low social class, migration, ischemic stroke and higher baseline levels of heart rate, systolic blood pressure and fibrinogen are significant predictors of stroke mortality, but lower global radiation and higher diastolic blood pressure are inversely linked.

  1. Predictors of successful cancer prevention programs.

    Science.gov (United States)

    Porzsolt, Franz; Kirner, Anita; Kaplan, Robert M

    2009-01-01

    Finding the optimal use of health-care resources requires the reliable estimation of costs and consequences. Acquiring these estimates may not be difficult for some common treatments. More difficult is the optimization of resources in the area of diagnostics. Only a few attempts have been made to optimize the use of resources in the area of prevention. Several aspects have to be considered when optimizing the resources for prevention: (1) participation rates in structured prevention programs are low, (2), acquiring data on follow-up and outcomes is difficult, (3) there are concerns about the quality of information available to public, and (4), the public is often unaware of scientific assessments of prevention programs. As prevention programs are costly long-term projects, a strategy to select these programs according to possible predictors of success might be useful. The few analyses of cancer prevention in the literature have been directed towards the most common malignant diseases (as assessed by incidence) such as cancer of the breast, colon, lung and prostate. We argue that incidence is a poor marker for selecting secondary prevention programs. Incidence may be a misleading indicator for two reasons: incidence of disease does not predict efficiency of management or good health outcomes, and incidence does not separate clinically significant from non-significant disease. The traditional strategy is based on the assumption that more screening increases the chance of cure. We propose an alternative outcomes model that suggests better disease management justifies new prevention programs. Indicators for better disease management are effective and efficient treatments as well as high-quality screening (sensitivity and specificity) techniques and possibly "side-effects of prevention programs," which provide early signs of success to motivate the patient's participation, to keep up with the program and finally to succeed.

  2. Ketogenic diet: Predictors of seizure control.

    Science.gov (United States)

    Agarwal, Nitin; Arkilo, Dimitrios; Farooq, Osman; Gillogly, Cynthia; Kavak, Katelyn S; Weinstock, Arie

    2017-01-01

    The ketogenic diet is an effective non-pharmacologic treatment for medically resistant epilepsy. The aim of this study was to identify any predictors that may influence the response of ketogenic diet. A retrospective chart review for all patients with medically resistant epilepsy was performed at a tertiary care epilepsy center from 1996 to 2012. Patient- and diet-related variables were evaluated with respect to seizure reduction at 1, 3, 6, 9 and 12-month intervals and divided into four possible outcome classes. Sixty-three patients met inclusion. Thirty-seven (59%) reported >50% seizure reduction at 3 months with 44% and 37% patients benefiting at 6-month and 12-month follow up, respectively. A trend toward significant seizure improvement was noted in 48% patients with seizure onset >1 year at 12-month (p = 0.09) interval and in 62% patients with >10 seizure/day at 6-month interval (p = 0.054). An ordinal logistic regression showed later age of seizure to have higher odds of favorable response at 1-month (p = 0.005) and 3-month (p = 0.013) follow up. Patients with non-fasting diet induction were more likely to have a favorable outcome at 6 months (p = 0.008) as do females (p = 0.037) and those treated with higher fat ratio diet (p = 0.034). Our study reports the effectiveness of ketogenic diet in children with medically resistant epilepsy. Later age of seizure onset, female gender, higher ketogenic diet ratio and non-fasting induction were associated with better odds of improved seizure outcome. A larger cohort is required to confirm these findings.

  3. Predictors of treatment failure for pneumatic retinopexy.

    Science.gov (United States)

    Rootman, Dan B; Luu, Shelly; M Conti, Stephen; Mandell, Mark; Devenyi, Robert; Lam, Wai-Ching; Kertes, Peter J

    2013-12-01

    The purpose of this study was to define the overall anatomic success rate in pneumatic retinopexy and to identify morphologic features that may be predictive of treatment failure in pneumatic retinopexy. Prospective consecutive interventional case series of patients with new-onset primary rhegmatogenous retinal detachments treated with pneumatic retinopexy. In this interventional case series, consecutive patients with new-onset primary rhegmatogenous retinal detachments were treated with pneumatic retinopexy and followed prospectively. Morphologic data were collected on 3-colour fundus drawings. The primary outcome measure was treatment failure, defined as requirement for scleral buckle or vitrectomy within the follow-up period. Rates of failure for each morphologic feature were compared and a logistic regression model was fit. A total of 113 eyes were included in the study. Anatomic success was achieved in 69.6% of patients. Morphologic criteria including the position and number of breaks, position and extent of lattice degeneration, size of the detached area, and macular status were all found not to be significantly related to failure. In multivariate analysis, only 3 predictors, pseudophakic status (p < 0.05, odds ratio [OR] 2.9, 95% CI, 1.06-7.88), presence of retinal break greater than 1 clock-hour (p < 0.05, OR 3.41, 1.06-11.02), and presence of grade C or D proliferative vitreoretinopathy (PVR) (p < 0.01, OR 31.83, 95% CI, 3.59-282.24), gained statistical significance. Only pseudophakia, a large retinal break, and/or PVR was associated with an increased likelihood of failure. Copyright © 2013 Canadian Ophthalmological Society. Published by Elsevier Inc. All rights reserved.

  4. Teens' distracted driving behavior: Prevalence and predictors.

    Science.gov (United States)

    Gershon, Pnina; Zhu, Chunming; Klauer, Sheila G; Dingus, Tom; Simons-Morton, Bruce

    2017-12-01

    Teen drivers' over-involvement in crashes has been attributed to a variety of factors, including distracted driving. With the rapid development of in-vehicle systems and portable electronic devices, the burden associated with distracted driving is expected to increase. The current study identifies predictors of secondary task engagement among teenage drivers and provides basis for interventions to reduce distracted driving behavior. We described the prevalence of secondary tasks by type and driving conditions and evaluated the associations between the prevalence of secondary task engagement, driving conditions, and selected psychosocial factors. The private vehicles of 83 newly-licensed teenage drivers were equipped with Data Acquisition Systems (DAS), which documented driving performance measures, including secondary task engagement and driving environment characteristics. Surveys administered at licensure provided psychosocial measures. Overall, teens engaged in a potentially distracting secondary task in 58% of sampled road clips. The most prevalent types of secondary tasks were interaction with a passenger, talking/singing (no passenger), external distraction, and texting/dialing the cell phone. Secondary task engagement was more prevalent among those with primary vehicle access and when driving alone. Social norms, friends' risky driving behaviors, and parental limitations were significantly associated with secondary task prevalence. In contrast, environmental attributes, including lighting and road surface conditions, were not associated with teens' engagement in secondary tasks. Our findings indicated that teens engaged in secondary tasks frequently and poorly regulate their driving behavior relative to environmental conditions. Practical applications: Peer and parent influences on secondary task engagement provide valuable objectives for countermeasures to reduce distracted driving among teenage drivers. Copyright © 2017 National Safety Council and

  5. Vaccination in oncology practice and predictors.

    Science.gov (United States)

    Alkan, Ali; Karcı, Ebru; Yaşar, Arzu; Tuncay, Gülseren; Köksoy, Elif Berna; Ürün, Muslih; Şenler, Filiz Çay; Demirkazık, Ahmet; Utkan, Güngör; Akbulut, Hakan; Ürün, Yüksel

    2017-09-01

    Despite, vaccination is a highly effective and widely recommended for prevention of certain infections, vaccination coverage is very low. The purposes of this study were to evaluate the attitudes of medical oncologists towards vaccination and to identify predictors of intention to recommend vaccination in patients with cancer. A structured questionnaire is formed to evaluate the daily practice of vaccination. Turkish medical oncologists were invited to this study via email, SMS, or phone call. Questionnaire was filled out and the data were stored in an online survey platform. Two hundred seventy-three medical oncologists participated in the survey. Influenza, Pneumococcus, and hepatitis B were the most commonly recommended vaccines (87.1, 72.8, 67.0%, respectively). Patients with lung cancer, lymphoma and breast cancer were the main malignancies that medical oncologists suggest vaccination (68.1, 68.1, 24.6%, respectively). The most common times for vaccination were during remission/follow-up period (68.4%) or before beginning chemotherapy (64.1%). Only 23.4% of the physicians thought that their recommendation for vaccination was efficient and adequate. Lack of time and lack of knowledge or experience about vaccination are the most common limitations. There is a positive correlation between experience in the field and evaluating patients for vaccination (r = 0.390, p vaccination (r = -0.080, p = 0.18). Experience with autologous or allogeneic bone marrow transplant patients is related with more tendency to evaluate patients for vaccination (p vaccination practice in oncology. The frequency of recommendation increases with degree of experience, knowledge, and visit time per patient.

  6. Identification of common predictors of surgical outcomes for epilepsy surgery

    Directory of Open Access Journals (Sweden)

    Zhang J

    2013-11-01

    Full Text Available Jing Zhang,1 Weifang Liu,1 Hui Chen,1 Hong Xia,1 Zhen Zhou,1 Shanshan Mei,2 Qingzhu Liu,2 Yunlin Li21School of Biomedical Engineering, Capital Medical University, 2Department of Functional Neurology and Neurosurgery, Beijing Haidian Hospital, Beijing, People's Republic of ChinaAbstract: Although epilepsy surgery is an effective treatment for patients with drug-resistant epilepsy, surgical outcomes vary across patient groups and studies. Identification of reliable prognostic factors for surgical outcome is important for outcome research. In this study, recent systematic reviews and meta-analyses on prediction of seizure outcome have been analyzed, and common predictors of seizure outcome or unrelated factors for temporal lobe epilepsy (TLE, lesional extratemporal lobe epilepsy (ETLE, and tuberous sclerosis complex have been identified. Clinical factors such as lesional epilepsy, abnormal magnetic resonance imaging, partial seizures, and complete resection were found to be common positive predictors, and factors such as nonlesional epilepsy, poorly defined and localized epileptic focus, generalized seizures, and incomplete resection are common negative predictors, while factors such as age at surgery and side of surgery are unrelated to seizure outcome for TLE and lesional ETLE. In addition, diagnostic neuroimaging and resection are among the most important predictors of seizure outcome. However, common predictors of seizure outcome could not be identified in nonlesional ETLE because no predictors were found to be significant in adult patients (by meta-analysis, and outcome prediction is difficult in this case. Meta-analysis of other outcomes, such as neuropsychologic outcomes, is rare due to lack of evaluation standards. Further studies on identification of reliable predictors of surgical outcomes are needed.Keywords: neuroimaging, epilepsy surgery, outcome prediction, common predictors

  7. Nonlinear Forecasting with Many Predictors using Kernel Ridge Regression

    OpenAIRE

    Peter Exterkate; Patrick J.F. Groenen; Christiaan Heij; Dick van Dijk

    2011-01-01

    textabstractThis paper puts forward kernel ridge regression as an approach for forecasting with many predictors that are related nonlinearly to the target variable. In kernel ridge regression, the observed predictor variables are mapped nonlinearly into a high-dimensional space, where estimation of the predictive regression model is based on a shrinkage estimator to avoid overfitting. We extend the kernel ridge regression methodology to enable its use for economic time-series forecasting, by ...

  8. Technique for ranking potential predictor layers for use in remote sensing analysis

    Science.gov (United States)

    Andrew Lister; Mike Hoppus; Rachel Riemann

    2004-01-01

    Spatial modeling using GIS-based predictor layers often requires that extraneous predictors be culled before conducting analysis. In some cases, using extraneous predictor layers might improve model accuracy but at the expense of increasing complexity and interpretability. In other cases, using extraneous layers can dilute the relationship between predictors and target...

  9. CRADA Final Report: Weld Predictor App

    Energy Technology Data Exchange (ETDEWEB)

    Billings, Jay Jay [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2018-01-25

    application software tool “WeldPredictor” ( https://eweldpredictor.ewi.org ). About 1400 users have tested this application. This project marked the beginning of development on the next version of WeldPredictor that addresses many outstanding features of the original, including 3D models, allow more material hardening laws, model material phase transformation, and uses open source finite element solvers to quickly solve problems (as opposed to expensive commercial tools).

  10. Predictors of trips to food destinations

    Directory of Open Access Journals (Sweden)

    Kerr Jacqueline

    2012-05-01

    Full Text Available Abstract Background Food environment studies have focused on ethnic and income disparities in food access. Few studies have investigated distance travelled for food and did not aim to inform the geographic scales at which to study the relationship between food environments and obesity. Further, studies have not considered neighborhood design as a predictor of food purchasing behavior. Methods Atlanta residents (N = 4800 who completed a travel diary and reported purchasing or consuming food at one of five food locations were included in the analyses. A total of 11,995 food-related trips were reported. Using mixed modeling to adjust for clustering of trips by participants and households, person-level variables (e.g. demographics, neighborhood-level urban form measures, created in GIS, and trip characteristics (e.g. time of day, origin and destination were investigated as correlates of distance travelled for food and frequency of grocery store and fast food outlet trips. Results Mean travel distance for food ranged from 4.5 miles for coffee shops to 6.3 miles for superstores. Type of store, urban form, type of tour, day of the week and ethnicity were all significantly related to distance travelled for food. Origin and destination environment, type of tour, day of week, age, gender, income, ethnicity, vehicle access and obesity status were all significantly related to visiting a grocery store. Home neighborhood environment, day of week, type of tour, gender, income, education level, age, and obesity status were all significantly related to likelihood of visiting a fastfood outlet. Conclusions The present study demonstrated that people travel sizeable distances for food and this distance is related to urban. Results suggest that researchers need to employ different methods to characterize food environments than have been used to assess urban form in studies of physical activity. Food is most often purchased while traveling from locations other

  11. Electricity curtailment behaviors in Greek households: Different behaviors, different predictors

    International Nuclear Information System (INIS)

    Botetzagias, Iosif; Malesios, Chrisovaladis; Poulou, Dimitra

    2014-01-01

    Highlights: • We study the self-reported energy (electricity) curtailment behaviors of Greek households (N=285). • We find that the curtailment behaviors are distinct and should be studied/analyzed separately. • ‘Age’, ‘Gender’ and ‘Perceived Behavioral Control’ are statistically significant predictors of most behaviors. • The demographic/structural and the psychological predictors contribute significantly explain the variance of the behaviors. • The cluster of moral predictors does not contribute statistically significantly to the explained variance. - Abstract: This paper argues that electricity ‘curtailment’ behaviors (i.e. frequent and/or low cost or free energy saving behaviors) in households are distinct from one another and they thus should be analyzed and promoted. We test this claim with data from telephone interviews with Greek households in the capital city of Athens (N=285), analyzing the impact of a number of demographical/structural, psychological (based on the Theory of Planned Behavior) and moral (based on norms’ activation) predictors though hierarchical binary logistic regression modeling. We find that that each electricity curtailment behavior depends on a different mix of predictors with ‘Age’, ‘Gender’ and ‘Perceived Behavioral Control’ being statistically significant for most behaviors. Overall, the psychological and the demographical/structural clusters of variables substantially contribute to the explained variance of electricity curtailment behaviors. The moral cluster's contribution is not statistically significant since moral concerns are largely interwoven in the psychological constructs

  12. Can You Hack It? Validating Predictors for IT Boot Camps

    Science.gov (United States)

    Gear, Courtney C.

    Given the large number of information technology jobs open and lack of qualified individuals to fill them, coding boot camps have sprung up in response to this skill gap by offering a specialized training program in an accelerated format. This fast growth has created a need to measure these training programs and understand their effectiveness. In the present study, a series of analyses examined whether specific or combinations of predictors were valid for training performance in this coding academy. Self-rated, daily efficacy scores were used as outcome variables of training success and correlation results showed a positive relationship with efficacy scores and the logic test score as a predictor. Exploratory analyses indicated a Dunning-Kruger effect where students with lower education levels experience higher overall mood during the training program. Limitations of the study included small sample size, severe range restriction in predictor scores, lack of variance in predictor scores, and low variability in training program success. These limitations made identifying jumps between training stages difficult to identify. By identifying which predictors matter most for each stage of skill acquisition, further research should consider more objective variables such as instructor scores which can serve as a guideline to better asses what stage learners join at and how to design curriculum and assignments accordingly (Honken, 2013).

  13. Personality as significant predictor of post-stroke anxiety.

    Science.gov (United States)

    Solgajová, Andrea; Sollár, Tomáš; Vörösová, Gabriela; Zrubcová, Dana

    2017-08-01

    Anxiety in stroke patients is very frequent. It negatively influences the whole recovery process. The study objective is to study personality traits, age, gender, and type of stroke as predictors of anxiety in stroke patients. Research presents a prospective cross-sectional descriptive study. The sample consisted of 74 hospitalized stroke patients. The data collection methods were the HADS for anxiety measurement and the Mini IPIP for evaluation of five personality factors. Hierarchical multiple regression analysis was used to study the relationship between anxiety and personality variables, gender, age, and type of stroke. We found three statistically significant predictors of anxiety in stroke patients. Neuroticism and low Agreeableness explain 50% of the variability of anxiety. Another statistically significant predictor was age; higher-level anxiety relates to lower age. Other personality traits (Extraversion, Openness to experience, and Conscientiousness), gender, and type of stroke do not appear as significant predictors of post-stroke anxiety. Anxiety in stroke patients is predicted mostly by the personality traits and young age of patients. Knowing these predictors can result in early detection and management of emotional consequences of disease, and thus influence the whole recovery process.

  14. CLINICAL AND ULTRASONOGRAPHIC PREDICTORS OF FOETAL MACROSOMIA

    Directory of Open Access Journals (Sweden)

    Suneetha Kalam

    2017-01-01

    and odds ratio was found out. For statistical evaluation, a two-tailed probability value less than 0.05 was considered significant. RESULTS 87% of the study population were less than 30 years. More than half were multigravida. Among them, 24.5% had macrosomic babies while among the primigravida only 14% had macrosomic babies. About 30% had gestational diabetes mellitus. Previous history of macrosomic foetus was present in 18.44%. Among 110 macrosomic babies, 74 mothers of those babies had BMI more than 25. In ultrasonography, 45 babies had BPD more than 96 mm (90th percentile, 40 had HC more than 354 mm (90th percentile, 92 had AC more than 346 mm (90th percentile and 85 had FL more than 74 mm (90th percentile. Estimated foetal weight was more than 4000 grams in 86 patients. CONCLUSION Foetal macrosomia is more common among multigravida. There is significant association between the incidence of macrosomia and gestational diabetes mellitus. Previous macrosomic birth and high body mass index have influence over macrosomia. Biparietal diameter and head circumference are poor predictors of macrosomia. Estimated foetal weight is the best individual ultrasound parameter in predicting macrosomia followed by abdominal circumference.

  15. Predictors of Adult Retention in HIV Care: A Systematic Review.

    Science.gov (United States)

    Bulsara, Shiraze M; Wainberg, Milton L; Newton-John, Toby R O

    2018-03-01

    A systematic literature review was conducted to identify predictors of poor adult retention in HIV medical care in developed and developing countries. An electronic search was conducted with MEDLINE (OVID), PubMED, EBSCO, SCOPUS, and Cochrane databases, as well as manual searches. Original, quantitative, adult studies in English, published between 1995 and 2015 were included. Only those with a focus on predictors of retention in care were reported on. Of the 345 articles identified, thirty were included following an independent assessment by two raters. In developed countries, the most frequently cited predictors of poor retention were active substance use and demographic factors. In developing countries, physical health factors were most frequently associated with poor retention in care. The results from this review suggests primary concerns for poor retention include substance use and physical health factors. Other psychosocial factors, such as psychiatric illness and social/welfare factors, were also found to be relevant.

  16. Radiographic Predictors for Mechanical Failure After Adult Spinal Deformity Surgery

    DEFF Research Database (Denmark)

    Hallager, Dennis W; Karstensen, Sven; Bukhari, Naeem

    2017-01-01

    STUDY DESIGN: Retrospective cohort study at a single institution. OBJECTIVE: We aimed at estimating the rate of revision procedures and identify radiographic predictors of mechanical failure after adult spinal deformity surgery. SUMMARY OF BACKGROUND DATA: Mechanical failure rates after adult......°, the role of radiographic sagittal spine parameters and alignment targets as predictors for mechanical failure remains uncertain. METHODS: A consecutive cohort of adult spinal deformity patients who underwent corrective surgery with at least 5 levels of instrumentation between January 2008 and December 2012...... at a single tertiary spine unit were followed for at least 2 years. Time to death or failure was recorded and cause-specific Cox regressions were applied to evaluate predictors for mechanical failure or death. RESULTS: A total of 138 patients with median age of 61 years were included for analysis. Follow up...

  17. [Predictors of competence in family caregivers of dementia patients].

    Science.gov (United States)

    Chang, Tzu-Chung; Shyu, Yea-Ing Lotus; Chen, Min-Chi; Chiu, Yi-Chen; Huang, Huei-Ling

    2012-12-01

    Differences in dementia symptoms at different dementia stages increase the burden of caregiving. The inability of family caregivers to meet patient needs not only influences the health of the patient, but also impacts negatively on their personal physical and mental health. This study explores predictors of competence in family caregivers of dementia patients. We designed a cross-sectional study to examine 123 participant groups. Each group included one individual diagnosed with dementia and one family caregiver. Predictors of caregiver competence included few / no caregiver chronic diseases, relatively high level of caregiver education, and lack of comorbidities in the care recipient. These predictors explained 26.7% of total variance. We recommend that nurses evaluate caregivers' care competency in order to provide appropriate health information and assistance. Guidance provided should take into consideration the caregivers' educational background. Apart from providing information related to dementia behavior, nurses should also provide caregiver guidance information related to the effects of comorbidities on dementia, as appropriate.

  18. High-Order Sparse Linear Predictors for Audio Processing

    DEFF Research Database (Denmark)

    Giacobello, Daniele; van Waterschoot, Toon; Christensen, Mads Græsbøll

    2010-01-01

    Linear prediction has generally failed to make a breakthrough in audio processing, as it has done in speech processing. This is mostly due to its poor modeling performance, since an audio signal is usually an ensemble of different sources. Nevertheless, linear prediction comes with a whole set...... of interesting features that make the idea of using it in audio processing not far fetched, e.g., the strong ability of modeling the spectral peaks that play a dominant role in perception. In this paper, we provide some preliminary conjectures and experiments on the use of high-order sparse linear predictors...... in audio processing. These predictors, successfully implemented in modeling the short-term and long-term redundancies present in speech signals, will be used to model tonal audio signals, both monophonic and polyphonic. We will show how the sparse predictors are able to model efficiently the different...

  19. Post-Operative Psychosocial Predictors of Outcome in Bariatric Surgery

    Science.gov (United States)

    Sheets, Carrie S.; Peat, Christine M.; Berg, Kelly C.; White, Emily K.; Bocchieri-Ricciardi, Lindsey; Chen, Eunice Y.; Mitchell, James E.

    2015-01-01

    Although there are several recent reviews of the pre-operative factors that influence treatment outcome for bariatric surgery, commensurate efforts to identify and review the predictive validity of post-operative variables are lacking. This review describes the post-operative psychosocial predictors of weight loss in bariatric surgery. Results suggest empirical support for post-operative binge eating, uncontrolled eating/grazing, and presence of a depressive disorder as negative predictors of weight loss outcomes; whereas, adherence to dietary and physical activity guidelines emerged as positive predictors of weight loss. With the exception of depression, psychological comorbidities were not consistently associated with weight loss outcomes. Results highlight the need for post-operative assessment of disordered eating and depressive disorder, further research on the predictive value of post-operative psychosocial factors, and development of targeted interventions. PMID:25381119

  20. Predictors of frequent visits to a psychiatric emergency room

    DEFF Research Database (Denmark)

    Aagaard, Jørgen; Aagaard, Andreas; Buus, Niels

    2014-01-01

    and social support. RESULTS: The study identified two overall trends of predictors of frequent use of the psychiatric emergency room. High use of psychiatric services: ≥5 visits to the psychiatric emergency room, ≥3 admissions or ≥60 bed days during the year, was and continued to be predictive of high use...... to psychiatric emergency services. OBJECTIVES: To identify predictors of frequent use of a psychiatric emergency room at a Danish University Psychiatric Hospital through a 12-year period (1995-2007) and to speculate on how changes in the mental healthcare services affect predictors of frequent use through time....... DESIGN: A large-scale register based logistic regression analysis combined with a small-scale explorative, interpretative interview study. Register data were drawn from the Danish Central Psychiatric Research Register. Four-year cohorts (1995, 1998, 2001 and 2004) of patients with at least one visit...

  1. Exploring the Predictors of Organizational Preparedness for Natural Disasters.

    Science.gov (United States)

    Sadiq, Abdul-Akeem; Graham, John D

    2016-05-01

    There is an extensive body of research on the determinants of disaster preparedness at the individual and household levels. The same cannot be said for the organizational level. Hence, the purpose of this study is to shed light on the predictors of organizational preparedness for natural disasters. Since leaders of organizations have an incentive to overstate their level of preparedness and because surveys of organizational leaders suffer from selection bias and low response rates, we take the novel approach of interviewing employees about the organizations that employ them. Using an online survey, we collected information from a national sample of 2,008 U.S. employees and estimated the predictors of preparedness at the organizational level. We find, among other results, that organization size (facility level) is a consistent predictor of preparedness at the organizational level. We conclude with policy recommendations and outline an agenda for future research on organizational preparedness for natural disasters. © 2015 Society for Risk Analysis.

  2. Characteristic Equation of the Modified Smith predictor to MIMO Systems

    Directory of Open Access Journals (Sweden)

    Jorge A. Herrera-Cuartas

    2013-11-01

    Full Text Available The delay in control systems is a feature frequently in real systems due to the transport of objects or information, a series connection of multiple systems or own processing and sensors delay, among others. Recently there have been several studies to identify the external delay MIMO systems, these works are focused on identification and on-line control of MIMO systems and use a multimodel structure based on modified Smith predictor using different search method. It is clear that for the implementation of the algorithm, and to obtain the convergence and stability analysis, it is necessary to have closed-loop equations of modified Smith predictor. However, in these works is not presented the analytical procedure, not be the main object, displaying only the closed loop equations without the procedure for obtaining it. Therefore, to respond, in this paper, we present an analytical way to derive the closed-loop equations of a modified Smith predictor.  

  3. Gender-specific predictors of posttraumatic stress disorder in adolescents

    DEFF Research Database (Denmark)

    Donbaek, Dagmar Feddern; Elklit, Ask

    2015-01-01

    Gender is an important risk factor for both posttraumatic stress disorder (PTSD) and substance use disorders (SUD) in adolescents; however, little is known about the influence of gender when considering their common co-occurrence. This study examined whether problematic substance use, attachment...... that drug abuse and avoidant attachment to best friends were significant predictors of PTSD severity in male adolescents, whereas alcohol abuse and the absence of posttraumatic social support from parents remained significant predictors for female adolescents. The results support the influence of gender......-specific substance abuse patterns and dysfunctional interpersonal relationships on the PTSD severity of traumatized adolescents....

  4. Sex differences in predictors of ischemic stroke: current perspectives

    Science.gov (United States)

    Samai, Alyana A; Martin-Schild, Sheryl

    2015-01-01

    Globally, stroke is a significant public health concern affecting more than 33 million individuals. Of growing importance are the differences between males and females in the predictors and overall risk of stroke. Given that women have a higher lifetime risk for stoke and account for more than half of all stroke deaths, sex-specific stroke risk factors merit investigation and may help target public health interventions. This review aims to discuss the current body of knowledge regarding sex-specific predictors of ischemic stroke including both modifiable and non-modifiable risk factors, as well as specific pathologies known to increase stroke risk. PMID:26251609

  5. Prevalence and Predictors of Depression and Anxiety among Korean Americans.

    Science.gov (United States)

    Koh, Eun

    2018-01-01

    Despite the significant growth of the Asian population in the United States, current knowledge on their mental health and service utilization behaviors is very limited. The study examined the prevalence and predictors of depression and anxiety among Korean Americans in the Washington, D.C. metropolitan area. A total of 602 Koreans completed a self-administered survey on physical and mental well-being, and the study found that 18.2% and 16.9% of the participants had severe symptoms of depression and anxiety, respectively. Acculturative stress and perceived social support were common predictors for depression and anxiety, and the effects of demographic factors were minimal.

  6. Concurrent sexual partners-A predictor of Chlamydia

    DEFF Research Database (Denmark)

    Jørgensen, Marianne Johansson; Olesen, Frede; Maindal, Helle Terkildsen

    2013-01-01

    Background:Chlamydia trachomatis is the most common sexually transmitted bacterial infection among young Danes and the spread is highly dependent on the population’s sexual behavior. Previous studies have found concurrent partnerships to be a possible predictor for C. trachomatis, but the signifi......Background:Chlamydia trachomatis is the most common sexually transmitted bacterial infection among young Danes and the spread is highly dependent on the population’s sexual behavior. Previous studies have found concurrent partnerships to be a possible predictor for C. trachomatis...

  7. Psychosocial predictors of treatment outcome for trauma-affected refugees

    DEFF Research Database (Denmark)

    Sonne, Charlotte; Carlsson, Jessica; Bech, Per

    2016-01-01

    situation. The primary outcome measure was PTSD symptoms measured on the Harvard Trauma Questionnaire (HTQ). Other outcome measures included the Hopkins Symptom Check List-25, the WHO-5 Well-being Index, Sheehan Disability Scale, Hamilton Depression and Anxiety Scales, the somatisation scale of the Symptoms...... Checklist-90, Global Assessment of Functioning scales, and pain rated on visual analogue scales. The relations between treatment outcomes and the total score as well as subscores of the CTP Predictor Index were analysed. RESULTS: Overall, the total score of the CTP Predictor Index was significantly...

  8. Psychosocial predictors of treatment outcome for trauma-affected refugees

    DEFF Research Database (Denmark)

    Sonne, Charlotte; Carlsson, Jessica; Bech, Per

    2016-01-01

    situation. The primary outcome measure was PTSD symptoms measured on the Harvard Trauma Questionnaire (HTQ). Other outcome measures included the Hopkins Symptom Check List-25, the WHO-5 Well-being Index, Sheehan Disability Scale, Hamilton Depression and Anxiety Scales, the somatisation scale of the Symptoms...... Checklist-90, Global Assessment of Functioning scales, and pain rated on visual analogue scales. The relations between treatment outcomes and the total score as well as subscores of the CTP Predictor Index were analysed. Results Overall, the total score of the CTP Predictor Index was significantly...

  9. Psychosocial predictors of treatment outcome for trauma-affected refugees

    DEFF Research Database (Denmark)

    Sonne, Charlotte Kærgaard; Mortensen, Erik Lykke; Carlsson, Jessica

    2016-01-01

    Background The effects of treatment in trials with trauma-affected refugees vary considerably not only between studies but also between patients within a single study. However, we know little about why some patients benefit more from treatment, as few studies have analysed predictors of treatment...... outcome. Objective The objective of the study was to examine possible psychosocial predictors of treatment outcome for trauma-affected refugees. Method The participants were 195 adult refugees with posttraumatic stress disorder (PTSD) who were enrolled in a 6- to 7-month treatment programme...

  10. Predictors of Happiness and Emotional Intelligence in Secondary Education

    Directory of Open Access Journals (Sweden)

    Federico Pulido Acosta

    2018-01-01

    Full Text Available This study analyzed predictors of happiness and emotional intelligence taking into account age, sex, culture and status and the relationship among these variables. 811 persons participated; 71.6% were Muslims and 28.4% Christians, with 46.1% males and 53.9% females. One questionnaire was used to evaluate happiness and another to evaluate emotional intelligence. The results indicate that predictors of happiness are age, culture, status and sex, while those of emotional intelligence are age, culture and sex. The study found that there is a statistically significant and direct correlation between happiness and emotional intelligence.

  11. Perceived Parenting Styles as Predictor of Internet Addiction in Adolescence

    Science.gov (United States)

    Dogan, Huseyin; Bozgeyikli, Hasan; Bozdas, Canan

    2015-01-01

    This study examined the perceived parenting styles as predictors of Internet addiction in adolescence. The participants of the study were a total of 419 high school students including 238 girl and 181 boy students whose mean age was 16.5. Personal information form, "Internet Addiction Test" and "Perceived Parenting Style Scale"…

  12. armax, oe and ssif model predictors for power transmission and ...

    African Journals Online (AJOL)

    Vincent

    prediction and tracking capabilities and that the OE model structure and its predictor structure can be used for power transmission ..... Cable Size: Larger cable size will have less voltage than smaller cable size of the same length; 3). Cable Length: shorter cables will have less voltage drop than longer cables of the same.

  13. Predictors of subjective well-being among older Ghanaians | Calys ...

    African Journals Online (AJOL)

    The single item measure of life satisfaction was used to determine subjective wellbeing. Descriptive statistics as well as logistic regression analysis were carried out to determine the predictors of SWB. Results: A total of 4724 individuals aged 50 years and above responded to the questionnaires. Of these 50.4% were males.

  14. Health Seeking Behaviours as Predictors of Hypertension Among ...

    African Journals Online (AJOL)

    This study examined health seeking behaviour as predictor of hypertension among traders in Osun State, Nigeria. Descriptive survey research design was used for this study while the instrument for data collection is self developed and structured questionnaire with reliability coefficient of 0.702. The population for this study ...

  15. Predictors of non-participation in cervical screening in Denmark

    DEFF Research Database (Denmark)

    Kristensson, Jenny Hansen; Sander, Bente Braad; von Euler-Chelpin, My

    2014-01-01

    PURPOSE: The aims of this study were to identify demographic and socio-economic predictors of non-participation in cervical screening in Denmark, and to evaluate the influence of health care use on screening participation. METHODS: A population based register study was undertaken using data from ...

  16. Predictors Of Academic Performance: Self-Efficacy And Use Of ...

    African Journals Online (AJOL)

    In the digital era any student in the institution of higher learning who intends to excel in academics should have the ability to effectively utilize electronic information resources and services. This study examined self-efficacy and use of electronic information as predictors of academic performance. Seven hundred students ...

  17. Social Intelligence and Communication Competence: Predictors of Students' Intercultural Sensitivity

    Science.gov (United States)

    Bosuwon, Takwa

    2017-01-01

    This study investigated the level of intercultural sensitivity of foreign international undergraduates and its possible predictors. Sample participants included 269 foreign international undergraduates of both government and private universities in Thailand. The research instrument was the three-page survey constructed questionnaire based on the…

  18. Predictors of Early versus Later Spelling Development in Danish

    Science.gov (United States)

    Nielsen, Anne-Mette Veber; Juul, Holger

    2016-01-01

    The present study examined phoneme awareness, phonological short term memory, letter knowledge, rapid automatized naming (RAN), and visual-verbal paired associate learning (PAL) as longitudinal predictors of spelling skills in an early phase (Grade 2) and a later phase (Grade 5) of development in a sample of 140 children learning to spell in the…

  19. Evaluation of some predictors for successful weaning from mechanical ventilation

    Directory of Open Access Journals (Sweden)

    Ali A. Mabrouk

    2015-07-01

    Conclusion: ABG and RSBI can be used as good weaning predictors and the CORE index is better in predicting the weaning outcome than the CROP index, the IWI and the RSBI as their value is better in the NPPV group which expresses the highest success rate.

  20. Predictors of impaired renal function among HIV infected patients ...

    African Journals Online (AJOL)

    Predictors of impaired renal function among HIV infected patients commencing highly active antiretroviral therapy in Jos, Nigeria. ... Data were analysed for age, gender, weight, WHO clinical stage, CD4 count, HIV-1 RNA viral load, HBsAg and anti-HCV antibody status. Estimated glomerular filtration rate (eGFR) was ...

  1. Predictors of Psychological Distress among Infertility Clinic Patients.

    Science.gov (United States)

    Morrow, Kelly A.; And Others

    1995-01-01

    Investigated predictors of psychological distress among infertility clinic patients. Analyses indicated that infertile men and women reported greater psychological distress than the general population. Self-blame and avoidance coping significantly predicted psychological distress among men and women. Increased age and childlessness added to…

  2. Prevalence and predictors of obstructive sleep apnea syndrome in a ...

    African Journals Online (AJOL)

    Introduction: Obstructive sleep apnea (OSA) and Diabetes Mellitus (DM) are growing health challenges worldwide. However, the relation of OSA with type 2 diabetes is not well understood in developing countries. This study described the prevalence and predictors of OSA in type 2 DM patients using a screening ...

  3. Rates and Predictors of Episiotomy in Nigerian Women | Onah ...

    African Journals Online (AJOL)

    Maternal age less than 30 years and primigravidity are significant predictors of episiotomy. Perineal lacerations are associated with less blood loss than episiotomies. Finally, Nigerian parturients should be taught the technique of antenatal perineal massage since this prevents both episiotomies and perineal lacerations.

  4. Childhood and Adolescent Predictors of Early Adult Career Pathways.

    Science.gov (United States)

    Wiesner, Margit; Vondracek, Fred W.; Capaldi, Deborah M.; Porfeli, Erik

    2003-01-01

    Data from the longitudinal Oregon Youth Study for 202 at-risk young men discerned 4 career pathways: long-term unemployment, short-term unemployment, full employment, college education. Long-term unemployment was associated with lowest education attainment and personal adjustment during childhood/adolescence. Most important predictors of pathways…

  5. Child and Family Predictors of Academic Functioning in Homeless Children.

    Science.gov (United States)

    Holden, E. Wayne; Danseco, Evangeline R.

    Differential predictors of the educational achievement status of homeless children were studied using multivariate statistical modeling. The effects of more general influences such as age, gender, and maternal educational level were studied before the influence of intellectual, behavioral, and emotional factors was examined. Participants were…

  6. Predictors of incident tuberculosis in HIV-exposed children in ...

    African Journals Online (AJOL)

    Objective: To examine the predictors of tuberculosis infection in HIV-exposed children. Design: A longitudinal cohort study nested within a randomised controlled trial. Setting: Antenatal clinics in Dar-es-Salaam, Tanzania. Subjects: Children born to 875 HIV-infected women in Tanzania. Results: A total of 82 children ...

  7. Romance of Leadership as a Leader Emergence Predictor

    Science.gov (United States)

    2008-03-01

    ROMANCE OF LEADERSHIP AS A LEADER EMERGENCE PREDICTOR THESIS Presented to the Faculty Department of Systems and Engineering Management Graduate...trait theory of leadership , attempting to identify core traits of an individual that could predict successful leadership . The results were generally...needed to fully understand the construct (Van Wart, 2004). While trait theories have shown promising results, other leadership theories have been

  8. Predictors of post operative bleeding and blood transfusion in ...

    African Journals Online (AJOL)

    blood requirements. Objective: To evaluate the impact of some perioperative predictors of post-operative bleeding, and blood transfusion after heart surgery and offer suggestions on preventive measures. Design and Methods: A prospective analytical study. The perioperative factors studied were haemoglobin level, ...

  9. Socio-Economic Status as Predictor of Deviant Behaviours among ...

    African Journals Online (AJOL)

    The study investigated socio-economic status as predictor of deviant behaviours among Nigeria secondary school students. The subject were sixty five students with an age range of 10 – 19 years drawn from Senior secondary school (SSS) 1 – III in four secondary schools in Oyo State. The subjects were selected from those ...

  10. The MMPI as a Predictor of Psychosocial Adaptation to Cancer.

    Science.gov (United States)

    Sobel, Harry J.; Worden, J. William

    1979-01-01

    Examined utility of the Minnesota Multiphasic Personality Inventory (MMPI) as a longitudinal predictor of psychosocial adaptation to cancer. A post hoc discriminant analysis revealed that 75% of all patients could have been correctly classified into a high-distressed v a low-distressed cancer patient group using only the MMPI. (Author)

  11. Inadequate Response to Therapy as a Predictor of Suicide.

    Science.gov (United States)

    Dahlsgaard, Katherine K.; Beck, Aaron T.; Brown, Gregory K.

    1998-01-01

    The role of response to cognitive therapy as a predictor of suicide was investigated by comparing 17 outpatients with mood disorders who committed suicide with 17 matched patients who did not commit suicide. Significant differences were found on several variables including higher levels of hopelessness at termination of therapy. (Author/EMK)

  12. Coping responses as predictors of satisfaction with life amongst a ...

    African Journals Online (AJOL)

    All participants completed the Coping Responses Inventory – Adult Version, as well as the Satisfaction with Life Scale. Initially, Pearson product-moment correlation coefficients were calculated to examine the relationship between the predictor variables (coping responses) and the criterion variable(satisfaction with life).

  13. Birth interval and its predictors among married women in Dabat ...

    African Journals Online (AJOL)

    2008-12-30

    Birth intervals (time between two successive live births) if short are associated with diverse complications. We assessed birth interval and its predictors among 613 married women who gave birth from January 1 to December 30, 2008. Data were collected in April 2012. Life table and Kaplan-Meier curve were used to ...

  14. Predictors of burnout among HIV nurses in the Western Cape

    Directory of Open Access Journals (Sweden)

    Rizwana Roomaney

    2017-06-01

    Conclusion: Factors such as workload, job status and interpersonal conflict in the work context, organisational constraints and stigma associated with HIV were found to be predictors of burnout in the sample of nurses. Our recommendations include developing and testing interventions aimed at reducing burnout among nurses, including reducing workload and creating conditions for less interpersonal conflict at work.

  15. Early Temperamental and Family Predictors of Shyness and Anxiety

    Science.gov (United States)

    Volbrecht, Michele M.; Goldsmith, H. Hill

    2010-01-01

    With a sample of 242 twins (135 girls, 107 boys) studied longitudinally, behavioral inhibition (BI) and inhibitory control (IC) measured at 3 years, as well as early and concurrent family process variables, were examined as predictors of shyness and of anxiety symptoms approximately 4 years later. Structured observational data from laboratory and…

  16. Level of Identification as a Predictor of Attitude Change.

    Science.gov (United States)

    Williams, Robert H.; Williams, Sharon Ann

    1987-01-01

    Discussion of conditions under which simulation games promote changes in attitudes focuses on identification theory as a predictor of attitude change. Incentive theory and cognitive dissonance theory are discussed, and a study of community college students is described that tested the role of identification in changing attitudes. (LRW)

  17. Predictors of smoking initiation among schoolchildren in Tunisia: a 4 ...

    African Journals Online (AJOL)

    Objective: To identify predictors of smoking initiation among non smoking Tunisian school children; and to propose efficient antismoking strategies in order to prevent smoking initiation. Methods: It was a cohort study surveying prospectively for four years pupils attending schools in Sousse city in Tunisia. 441 non smoking ...

  18. Predictors of Vitamin D Deficiency in Predialysis Patients with Stage ...

    African Journals Online (AJOL)

    2018-02-07

    Feb 7, 2018 ... this study, we aim to investigate serum 25-hydroxyvitamin D [25(OH)D] status and find the predictors of Vitamin D deficiency in predialysis patients with Stage. 3–5 CKDs in Southern China. Methods: In this retrospective cross-sectional study, hospitalized predialysis patients who were diagnosed of Stage ...

  19. Predictors of obesity and cardiometabolic disease risk in South ...

    African Journals Online (AJOL)

    Background. Obesity is a major public health problem in developed countries, and is also a growing concern in developing nations. This study assessed the predictors of overweight and obesity in South African (SA) children and adolescents, and examined the extent to which these dependent measures correlate with ...

  20. Premarital sexual practice and its predictors among university ...

    African Journals Online (AJOL)

    Premarital sexual practice and its predictors among university students: institution based cross sectional study. ... Mixed Quantitative and Qualitative approach was applied. Bivariate and multivariate ... Half (50.6%) of these sexual activities were performed because of student's interest to meet their sexual desire. Being Male ...

  1. Culture and gender as predictors of undergraduates' perception of ...

    African Journals Online (AJOL)

    The study examined culture, and gender as predictors of gender-roles perception among undergraduates. Participants were drawn from two universities; one in the North Central and the other in the South Western regions of Nigeria. A questionnaire comprising thirty home-related activities was administered to 522 ...

  2. Predictors of outcome among patients with obstructive jaundice at ...

    African Journals Online (AJOL)

    Despite recent advances both in preoperative diagnosis and postoperative care, obstructive jaundice still contributes significantly to high morbidity and mortality. A prospective study was undertaken to identify predictors of outcome among patients with obstructive jaundice at Bugando Medical Centre in north-western ...

  3. Changing the course of schizophrenia - predictors of treatment ...

    African Journals Online (AJOL)

    Changing the course of schizophrenia - predictors of treatment outcome revisited. R Emsley, P Oosthuizen, D Niehaus, L Koen, B chiliza. Abstract. No Abstract. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4102/sajpsychiatry.v13i1.4.

  4. Predictors of micro-costing components in liver transplantation

    Directory of Open Access Journals (Sweden)

    Luciana Bertocco de Paiva Haddad

    Full Text Available OBJECTIVES: Although liver transplantation procedures are common and highly expensive, their cost structure is still poorly understood. This study aimed to develop models of micro-costs among patients undergoing liver transplantation procedures while comparing the role of individual clinical predictors using tree regression models. METHODS: We prospectively collected micro-cost data from patients undergoing liver transplantation in a tertiary academic center. Data collection was conducted using an Intranet registry integrated into the institution’s database for the storing of financial and clinical data for transplantation cases. RESULTS: A total of 278 patients were included and accounted for 300 procedures. When evaluating specific costs for the operating room, intensive care unit and ward, we found that in all of the sectors but the ward, human resources were responsible for the highest costs. High cost supplies were important drivers for the operating room, whereas drugs were among the top four drivers for all sectors. When evaluating the predictors of total cost, a MELD score greater than 30 was the most important predictor of high cost, followed by a Donor Risk Index greater than 1.8. CONCLUSION: By focusing on the highest cost drivers and predictors, hospitals can initiate programs to reduce cost while maintaining high quality care standards.

  5. Clinical and Laboratory Predictors of Articular Disorders Among HIV ...

    African Journals Online (AJOL)

    Background: HIV infection may be associated with different arthropathies that are often underdiagnosed. There is also paucity of reported studies of relationship between clinical and laboratory features of HIV‑infected patients and articular disorders. Aims: To determine the predictors of articular disorders among ...

  6. Predictors of Organizational Commitment among Staff in Assisted Living

    Science.gov (United States)

    Sikorska-Simmons, Elzbieta

    2005-01-01

    Purpose: This study examines the role of organizational culture, job satisfaction, and sociodemographic characteristics as predictors of organizational commitment among staff in assisted living. It is particularly important to examine organizational commitment, because of its close links to staff turnover. Design and Methods: Data were collected…

  7. Psychological predictors of outcome after gastric banding for morbid obesity

    NARCIS (Netherlands)

    Larsen, J.K.

    2004-01-01

    Obesity has become a major public health problem in Western societies. Although surgery is considered the treatment of choice in morbid obesity, the outcome is variable and weight regain may occur in the long-term postoperative period. The aim of this thesis was to examine psychological predictors

  8. Predictors of Male Condom Utilization in Plateau State, Nigeria ...

    African Journals Online (AJOL)

    The dataset was analyzed using SPSS version 21.0 software (SPSS, IBM Corp, Armonk, NY, USA). Condom utilization prevalence rate was calculated for the 393 males, while predictors were determined by logistic regression. P ≤ 0.05 was considered statistically significant. Results: Mean age of the respondents was ...

  9. Epidemiological predictors of metabolic syndrome in urban West Bengal, India

    Directory of Open Access Journals (Sweden)

    Sasthi Narayan Chakraborty

    2015-01-01

    Full Text Available Introduction: Metabolic syndrome is one of the emerging health problems of the world. Its prevalence is high in urban areas. Though pathogenesis is complex, but the interaction of obesity, sedentary lifestyle, dietary, and genetic factors are known as contributing factors. Community-based studies were very few to find out the prevalence or predictors of the syndrome. Objectives: To ascertain the prevalence and epidemiological predictors of metabolic syndrome. Materials and Methods: A total of 690 study subjects were chosen by 30 clusters random sampling method from 43 wards of Durgapur city. Data were analyzed in SPSS version 20 software and binary logistic regression was done to find out statistical significance of the predictors. Results: Among 32.75% of the study population was diagnosed as metabolic syndrome according to National Cholesterol Education Program Adult Treatment Panel III definition with a modification for Asia Pacific cut-off of waist circumference. Odds were more among females (2.43, upper social class (14.89, sedentary lifestyle (17.00, and positive family history. Conclusion: The overall prevalence of metabolic syndrome was high in urban areas of Durgapur. Increased age, female gender, higher social status, sedentary lifestyle, positive family history, and higher education were the statistically significant predictors of metabolic syndrome.

  10. Patterns and predictors of physical activity among pregnant women ...

    African Journals Online (AJOL)

    The patterns and predictors of physical activity (PA) in pregnant women is poorly understood. This study described the patterns of physical activity (PA) in specific domains (home, occupation, transport and exercise/sport) and intensities (light, moderate and vigorous), and determined the factors associated with achieving ...

  11. Predictors of Home Deliveries in Rakai District, Uganda | Nuwaha ...

    African Journals Online (AJOL)

    In order to identify independent predictors for home delivery, 211 women from 21 clusters, who had a delivery in the previous one year, were interviewed in Rakai District, Uganda, from June 2 to 30, 1997. Mothers answered questions regarding socio-economic, local, reproductive and self-efficacy variables and whether ...

  12. Early Predictors of Adolescent Depression: A 7-Year Longitudinal Study

    Science.gov (United States)

    Mazza, James J.; Abbott, Robert D.; Fleming, Charles B.; Harachi, Tracy W.; Cortes, Rebecca C.; Park, Jisuk; Haggerty, Kevin P.; Catalano, Richard F.

    2009-01-01

    This study examined the longitudinal relationship of early elementary predictors to adolescent depression 7 years later. The sample consisted of 938 students who have been part of a larger longitudinal study that started in 1993. Data collected from parents, teachers, and youth self-reports on early risk factors when students were in 1st and 2nd…

  13. Using Dominance Analysis to Determine Predictor Importance in Logistic Regression

    Science.gov (United States)

    Azen, Razia; Traxel, Nicole

    2009-01-01

    This article proposes an extension of dominance analysis that allows researchers to determine the relative importance of predictors in logistic regression models. Criteria for choosing logistic regression R[superscript 2] analogues were determined and measures were selected that can be used to perform dominance analysis in logistic regression. A…

  14. Predictors of Adult Attitudes toward Corporal Punishment of Children

    Science.gov (United States)

    Gagne, Marie-Helene; Tourigny, Marc; Joly, Jacques; Pouliot-Lapointe, Joelle

    2007-01-01

    This study identifies predictors of favorable attitudes toward spanking. Analyses were performed with survey data collected from a representative sample of 1,000 adults from Quebec, Canada. According to this survey, a majority of respondents endorsed spanking, despite their recognition of potential harm associated with corporal punishment (CP) of…

  15. Predictors of mortality in patients initiating antiretroviral therapy in ...

    African Journals Online (AJOL)

    a history of oral candidiasis (HR 2.58, 95% CI 1.37 - 4.88) remained significant in multivariate analysis. A history of tuberculosis was not a significant predictor of mortality. Conclusions. Simple clinical and laboratory data independently predict mortality and allow for risk stratification in patients initiating ART in South Africa.

  16. Predictors of successful induction of labour at a tertiary obstetric ...

    African Journals Online (AJOL)

    Context: Induction of labour is a useful obstetric intervention, yet it is underutilized in Africa. Recommendations for practice may reduce its unmet need. Objective: This study aims to determine labour induction success rates and identify predictors of outcome. Study Design, Setting and Patients: This was a retrospective, ...

  17. Predictors of Heterosexual College Students' Attitudes toward LGBT People

    Science.gov (United States)

    Woodford, Michael R.; Silverschanz, Perry; Swank, Eric; Scherrer, Kristin S.; Raiz, Lisa

    2012-01-01

    This study identifies the predictors of U.S. heterosexual undergraduate and graduate college students' attitudes toward lesbian, gay, bisexual, and transgender (LGBT) people as a group rather than toward individual identities. Findings suggest that affirming LGBT attitudes are most strongly associated with liberal political ideology and whether…

  18. Personality Factors as Predictors of Foreign Language Aptitude

    Science.gov (United States)

    Biedron, Adriana

    2011-01-01

    The study addresses a problem which is inadequately investigated in second language acquisition research, that is, personality predictors of foreign language aptitude. Specifically, it focuses on the Five Factor model which includes Openness to Experience, Conscientiousness, Extraversion, Agreeableness and Neuroticism (Costa & McCrae, 1992) as…

  19. Predictors of Academic Procrastination in Asian International College Students

    Science.gov (United States)

    Lowinger, Robert Jay; Kuo, Ben C. H.; Song, Hyun-A.; Mahadevan, Lakshmi; Kim, Eunyoung; Liao, Kelly Yu-Hsin; Chang, Catherine Y.; Kwon, Kyong-Ah; Han, Suejung

    2016-01-01

    This study examined the relationships among acculturative stress, coping styles, self-efficacy, English language proficiency, and various demographic characteristics as predictors of procrastination behavior in Asian International students (N = 255) studying in the United States. Results of multiple logistic regression indicated that a collective…

  20. Predictors of Parental Use of Corporal Punishment in Ukraine.

    Science.gov (United States)

    Grogan-Kaylor, Andrew; Burlaka, Viktor; Ma, Julie; Lee, Shawna; Castillo, Berenice; Churakova, Iuliia

    2018-05-01

    Despite a great deal of evidence that corporal punishment is harmful, corporal punishment is still very prevalent worldwide. We examine predictors of different types of corporal punishment among Ukrainian mothers in 12 communities across Ukraine. Findings suggest that maternal spirituality, maternal coping styles, family communication, and some demographic characteristics are predictive of mothers' use of corporal punishment.

  1. Development of simple fixed linear predictors for use in speech ...

    African Journals Online (AJOL)

    Development of simple fixed linear predictors for use in speech compression. ... A very popular method used for compression is Linear Prediction Coding (LPC), by using the Linear Prediction Model. The development of simple ... Various speech signals are used to test the performance of both filters within a DPCM system.

  2. Oleander toxicity – the clinical spectrum and mortality predictors: an ...

    African Journals Online (AJOL)

    Institutional assessment and treatment protocols based on the infrastructure and expertise available are the need of the hour. Prompt first aid, critical assessment and timely referral for cardiac pacing can cut down mortality to a large extent. Keywords: Oleander poisoning; Cardiac glycoside toxicity; Mortality predictors ...

  3. Predictors of foeto-maternal outcome of patients with abruptio ...

    African Journals Online (AJOL)

    Background: Abruptio placenta (AP) is one of the life-threatening obstetric complications for both the foetus and mother. We conducted this study to determine the incidence and predictors of adverse outcomes of abruptio placenta at Bugando Medical Centre (BMC) in northwest Tanzania. Methods: This descriptive ...

  4. Predictors of hospitalization among children on ART in Ethiopia: A ...

    African Journals Online (AJOL)

    The purpose of this study, therefore, was to assess predictors of hospitalization in children on ART in seven university referral hospitals in Ethiopia. Methods: A prospective cohort study design was employed on children age 0-18 years as part of a multisite observational study. ART-experienced eligible and ART-naïve ...

  5. Predictors of Autism Enrollment in Public School Systems

    Science.gov (United States)

    Boswell, Katelyn; Zablotsky, Benjamin; Smith, Christopher

    2014-01-01

    With a number of disparities present in the diagnosis and treatment of children with autism spectrum disorders, the education system plays a crucial role in the provision of both these service elements. Based on school and federal census data, this article examines one state's public school autism enrollment and possible predictors of enrollment…

  6. Confidence: The Best Non-Cognitive Predictor of Academic Achievement?

    Science.gov (United States)

    Stankov, Lazar; Morony, Suzanne; Lee, Yim Ping

    2014-01-01

    Recent efforts to identify non-cognitive predictors of academic achievement and school success have largely focused on self-constructs such as self-efficacy, self-concept and anxiety that are measured with respect to a specific domain (e.g. mathematics). We extend the measurement of the non-cognitive realm in education to incorporate both social…

  7. Predictors of weight loss in Mexican American adolescents

    Science.gov (United States)

    This study examined predictors of weight change in Mexican American adolescents. Eighty overweight Mexican American children were randomized to receive either the intensive intervention or self help program. Physiological (e.g. standardized BMI (zBMI), percent body fat, and tanner stage), psychologi...

  8. Emotional Intelligence: A Predictor Of Psychological Adjustment To ...

    African Journals Online (AJOL)

    This study assessed emotional intelligence as a predictor of psychological adjustment to anxiety and depression among Nigerian adolescents. Five hundred (500) adolescents drawn from 10 Senior Secondary Schools participated in the study. The participants were drawn through a multi-stage sampling procedure from the ...

  9. Relational Aggression in Middle Childhood: Predictors and Adolescent Outcomes

    Science.gov (United States)

    Spieker, Susan J.; Campbell, Susan B.; Vandergrift, Nathan; Pierce, Kim M.; Cauffman, Elizabeth; Susman, Elizabeth J.; Roisman, Glenn I.

    2012-01-01

    This study examined gender differences in the level and developmental course of relational aggression in middle childhood, as well as early predictors and outcomes of relational aggression, after controlling for concurrent physical aggression. Relational (RAgg) and Physical aggression (PAgg) scores for 558 boys and 545 girls at the ages of eight…

  10. Predictors of subjective health status 10 years post-PCI

    NARCIS (Netherlands)

    J.C. van den Berge (Jan); K. Dulfer (Karolijn); E.M.W.J. Utens (Elisabeth); E.M.J. Hartman (Eline); J. Daemen (Joost); R.J.M. van Geuns (Robert Jan); R.T. van Domburg (Ron)

    2016-01-01

    textabstractBackground: Subjective health status is an increasingly important parameter to assess the effect of percutaneous coronary intervention (PCI) in clinical practice.Aim of this study was to determine medical and psychosocial predictors of poor subjective health status over a 10 years'

  11. Predictors of Postural Stability in Children with ADHD

    Science.gov (United States)

    Ghanizadeh, Ahmad

    2011-01-01

    Objective: As children with ADHD who have more inattention problems are more frequently with fine motor problems, it is not clear whether postural balance problems are associated with different subtypes of ADHD. This study investigates the predictors of postural stability in children with ADHD considering the covariant factors of age, gender, and…

  12. Predictors of maternal mortality among women of reproductive age ...

    African Journals Online (AJOL)

    Predictors of maternal mortality among women of reproductive age seeking health care services at Kisii Level 5 Hospital. ... lack of access to quality care, poor health infrastructure, women empowerment and socio-economic issues. Key words: Maternal mortality, Quality of care, Women empowerment, Health infrastructure ...

  13. Predictors of quality of life: A model based study

    NARCIS (Netherlands)

    Masthoff, E.D.M.; Trompenaars, F.J.; Heck, G.L. van; Michielsen, H.J.; Hodiamont, P.P.G.; Vries, I.J.M. de

    2007-01-01

    In this study, predictors of quality of life (QOL) in psychiatric outpatients (n = 410) were investigated using the psychological stress model developed by Taylor and Aspinwall (Psychosocial Stress. Perspective on Structures, Theory, Life-Course and Methods. San Diego, CA: Academic Press, 1996; pp.

  14. Predictors of quality of life: a model based study.

    NARCIS (Netherlands)

    Masthoff, E.D.M.; Trompenaars, F.J.; Heck, G.L. van; Michielsen, H.J.; Hodiamont, P.P.G.; Vries, J. de

    2007-01-01

    In this study, predictors of quality of life (QOL) in psychiatric outpatients (n = 410) were investigated using the psychological stress model developed by Taylor and Aspinwall (Psychosocial Stress. Perspective on Structures, Theory, Life-Course and Methods. San Diego, CA: Academic Press, 1996; pp.

  15. Moderation analysis with missing data in the predictors.

    Science.gov (United States)

    Zhang, Qian; Wang, Lijuan

    2017-12-01

    The most widely used statistical model for conducting moderation analysis is the moderated multiple regression (MMR) model. In MMR modeling, missing data could pose a challenge, mainly because the interaction term is a product of two or more variables and thus is a nonlinear function of the involved variables. In this study, we consider a simple MMR model, where the effect of the focal predictor X on the outcome Y is moderated by a moderator U. The primary interest is to find ways of estimating and testing the moderation effect with the existence of missing data in X. We mainly focus on cases when X is missing completely at random (MCAR) and missing at random (MAR). Three methods are compared: (a) Normal-distribution-based maximum likelihood estimation (NML); (b) Normal-distribution-based multiple imputation (NMI); and (c) Bayesian estimation (BE). Via simulations, we found that NML and NMI could lead to biased estimates of moderation effects under MAR missingness mechanism. The BE method outperformed NMI and NML for MMR modeling with missing data in the focal predictor, missingness depending on the moderator and/or auxiliary variables, and correctly specified distributions for the focal predictor. In addition, more robust BE methods are needed in terms of the distribution mis-specification problem of the focal predictor. An empirical example was used to illustrate the applications of the methods with a simple sensitivity analysis. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  16. Identifying cognitive predictors of reactive and proactive aggression

    NARCIS (Netherlands)

    Brugman, S.; Lobbestael, J.; Arntz, A.; Cima, M.; Schuhmann, T.; Dambacher, F.; Sack, A.T.

    2015-01-01

    The aim of this study was to identify implicit cognitive predictors of aggressive behavior. Specifically, the predictive value of an attentional bias for aggressive stimuli and automatic association of the self and aggression was examined for reactive and proactive aggressive behavior in a

  17. Executive Functions as Predictors of Math Learning Disabilities

    Science.gov (United States)

    Toll, Sylke W. M.; Van der Ven, Sanne H. G.; Kroesbergen, Evelyn H.; Van Luit, Johannes E. H.

    2011-01-01

    In the past years, an increasing number of studies have investigated executive functions as predictors of individual differences in mathematical abilities. The present longitudinal study was designed to investigate whether the executive functions shifting, inhibition, and working memory differ between low achieving and typically achieving children…

  18. Predictors of Future Performance in Architectural Design Education

    Science.gov (United States)

    Roberts, A. S.

    2007-01-01

    The link between academic performance in secondary education and the subsequent performance of students studying architecture at university level is commonly questioned by educators and admissions tutors. This paper investigates the potential for using measures of cognitive style and spatial ability as predictors of future potential in…

  19. Clinical, laboratorial and radiographic predictors of Bordetella pertussis infection

    Directory of Open Access Journals (Sweden)

    Camila Vieira Bellettini

    2014-12-01

    Full Text Available OBJECTIVE: To identify clinical, laboratorial and radiographic predictors for Bordetella pertussis infection.METHODS: This was a retrospective study, which analyzed medical records of all patients submitted to a molecular dignosis (qPCR for B. pertussis from September 2011 to January 2013. Clinical and laboratorial data were reviewed, including information about age, sex, signs/symptoms, length of hospitalization, blood cell counts, imaging findings, coinfection with other respiratory pathogens and clinical outcome.RESULTS: 222 cases were revised. Of these, 72.5% had proven pertussis, and 60.9% were under 1 year old. In patients aging up to six months, independent predictors for B. pertussisinfection were (OR 8.0, CI 95% 1.8-36.3; p=0.007 and lymphocyte count >104/µL (OR 10.0, CI 95% 1.8-54.5; p=0.008. No independent predictors of B. pertussisinfection could be determined for patients older than six months. Co-infection was found in 21.4% of patients, of which 72.7% were up to six months of age. Adenovirus was the most common agent (40.9%. In these patients, we were not able to identify any clinical features to detect patients presenting with a respiratory co-infection, even though longer hospital stay was observed in patients with co-infections (12 vs. 6 days; p=0.009.CONCLUSIONS: Cyanosis and lymphocytosis are independent predictors for pertussis in children up to 6 months old.

  20. Sociological Factors as Predictors of Academic Emotion among ...

    African Journals Online (AJOL)

    This study investigated the sociological factors as predictors of academic emotion among Nigeria University students. The study adopted a survey research design. The participants in the study were 345 undergraduates in South-West, Nigeria. Their age ranged between 17 years and 24 years with mean age of 21.69 years.

  1. Prevalence and predictors of placental malaria in human ...

    African Journals Online (AJOL)

    Background: Human immunodeficiency virus (HIV)‑infected pregnant women have alterations in cellular and humoral immunity that increase the risks to placental malaria infection. Aim: This study aimed at determining the prevalence and predictors of placental malaria among HIV‑positive women in Nigeria. Materials and ...

  2. Prevalence and predictors of anaemia among patients presenting ...

    African Journals Online (AJOL)

    Dr David Zadock Munisi

    Conclusion: Anaemia is very common among patients presenting with kidney diseases. These patients require a thorough evaluation to identify and correct causes of anaemia other than erythropoietin deficiency. Keywords: chronic kidney disease, prevalence, predictors, anaemia, Tanzania. Introduction. Anaemia is defined ...

  3. Burden, etiology and predictors of visual impairment among children ...

    African Journals Online (AJOL)

    2017-09-03

    Sep 3, 2017 ... hood visual impairment among the children attending the eye clinic in Mulago National Referral Hospital. ... Cite as: Kinengyere P, Kizito S, Kiggundu JB, Ampaire A, Wabulembo G. Burden, etiology and predictors of visual impairment among children ..... College of Health Sciences for all the support.

  4. Predictors of Obesity Bias among Exercise Science Students

    Science.gov (United States)

    Langdon, Jody; Rukavina, Paul; Greenleaf, Christy

    2016-01-01

    The purpose of the present study was to investigate particular psychosocial predictors of obesity bias in prehealth professionals, which include the internalization of athletic and general body ideals, perceived media pressure and information, and achievement goal orientations. Exercise science undergraduate students (n = 242) filled out a survey…

  5. Predictors of work ability in occupations with psychological stress

    OpenAIRE

    Seibt, Reingard; Spitzer, Silvia; Blank, Matthes; Scheuch, Klaus

    2008-01-01

    Abstract Aim This study aimed to detect health- and work-related predictors of poor and good work ability in teachers (TE) and office workers (OW). Method Work ability and its influence factors were analyzed in 100 female TE and 60 female OW aged between 25 and 60 years. The work ability was evaluated with the wo...

  6. prevalence and predictors of intestinal helminthiasis among school

    African Journals Online (AJOL)

    Abrham

    2011-11-03

    Nov 3, 2011 ... Gilgel Gibe Hydroelectric Power to determine the prevalence and predictors of intestinal parasitic infections among school children. This study is conducted as sub-study to the main study; the objective of which was to determine the prevalence of intestinal schistosomiasis, and related factors such as risk ...

  7. Predictors for the development of temporomandibular disorders in scuba divers

    NARCIS (Netherlands)

    Lobbezoo, F.; van Wijk, A.J.; Klinger, M.C.; Ruiz Vicente, E.; van Dijk, C.J.; Eijkman, M.A.J.

    2014-01-01

    The aim was to determine predictors for the development of complaints of temporomandibular disorders (TMD) in a large sample of Dutch scuba divers who were free of any TMD complaints before they started diving actively. Five-hundred and thirty-six scuba divers (mean ± SD age = 40·4 ± 11·9 years;

  8. Selected Predictors Of Apoptosis In Retinitis Pigmentosa | Mahmoud ...

    African Journals Online (AJOL)

    Selected Predictors Of Apoptosis In Retinitis Pigmentosa. AAG Mahmoud, AA Abdel Azeem, AH Galal, BMA Bayoumi. Abstract. The genetics of non syndromic retinitis pigmentosa (RP) is complex with numerous gene mutations. An attempt to overcome each individual mutation provides an overwhelming challenge.

  9. Psycho-Demographic Variables As Predictors Of Computer Anxiety ...

    African Journals Online (AJOL)

    The study investigated psycho-demographic variables such as gender, age, frequency of computer use weekly, attitudes toward computer and computer self efficacy as predictors of computer anxiety among distance learning students in a Nigerian University. The study employed survey research design where the ...

  10. Predictors of WhatsAPP 'Consumption' among undergraduate ...

    African Journals Online (AJOL)

    This paper examined cognitive, affective social-integrative and tension-release needs as predictors of WhatsApp 'consumption' among undergraduate students of Economics in Ambrose Alli University, Ekpoma. The population covered all the 808 undergraduate students in the Department of Economics from 100 to 400level ...

  11. Predictors of Familial Acculturative Stress in Asian American College Students

    Science.gov (United States)

    Castillo, Linda G.; Zahn, Marion P.; Cano, Miguel A.

    2012-01-01

    The authors examined the predictors of familial acculturative stress in 85 Asian American college students. Participants were primarily 1st- and 2nd-generation U.S. citizens. Results showed that perceived acculturative family conflict and family intragroup marginalization were related to higher levels of familial acculturative stress for…

  12. Predictors of Adolescent Breakfast Consumption: Longitudinal Findings from Project EAT

    Science.gov (United States)

    Bruening, Meg; Larson, Nicole; Story, Mary; Neumark-Sztainer, Dianne; Hannan, Peter

    2011-01-01

    Objective: To identify predictors of breakfast consumption among adolescents. Methods: Five-year longitudinal study Project EAT (Eating Among Teens). Baseline surveys were completed in Minneapolis-St. Paul schools and by mail at follow-up by youth (n = 800) transitioning from middle to high school. Linear regression models examined associations…

  13. Prevalence and Predictors of Intestinal Helminthiasis among School ...

    African Journals Online (AJOL)

    The objective of the survey was to determine the prevalence and predictors of intestinal parasitosis among school children in four woredas of Jimma zone surrounding Gilgel gibe hydraulic dam and serve as a base line data to help evaluate health promoting activities for the future and monitor those already delivered to the ...

  14. ARMAX, OE and SSIF model predictors for power transmission and ...

    African Journals Online (AJOL)

    Three mathematical model structures, namely: ARMAX, OE and a SSIF are first formulated followed by the formulation of their respective model predictors for the model identification and prediction of power transmission and distribution within Akure and its environs. A total of 51,350 data samples from the Power Holding ...

  15. Examining the Changing Influence of Predictors on Adolescent Alcohol Misuse

    Science.gov (United States)

    Tyler, Kim A.; Stone, Rosalie Torres; Bersani, Bianca

    2007-01-01

    The purpose of this study was to examine whether the influence of key characteristics on adolescent alcohol misuse (i.e., maternal binge drinking, parenting, peers, school characteristics, and the adolescent's own behavior) change over time and whether predictors of adolescent alcohol misuse vary by gender and race/ethnicity. Using prospective,…

  16. Magnitude and predictors of excessive alcohol use in Ethiopia ...

    African Journals Online (AJOL)

    Descriptive statistics including frequency table, mean, median, interquartile range and standard deviations were computed. Logistic regression was used to analyze the predictors of Heavy Episodic Drinking. Results: A total of 9,800 participants were interviewed in the study. The majority59.4% of the study subjects were ...

  17. Prevalence and Predictors of Diarrhoea in Under-Fives Presenting ...

    African Journals Online (AJOL)

    Introduction: Malaria and diarrhoea are the two of the most common childhood killer diseases world-wide. There have been varying findings from published data on the interaction between malaria and diarrhoea. Objective: To determine the prevalence and to identify predictors of diarrhoea in under-fives with malaria.

  18. Predictors of under-five childhood diarrhea: Mecha District, West ...

    African Journals Online (AJOL)

    admin

    Bivariate and multivariate logistic regression analyses were undertaken to identify predictors of childhood diarrhea. Results: The prevalence of diarrhea among mothers and under-five children was 8.2% and 18.0%, respectively. Maternal education (AOR=5.6, 95% CI: 1.5 - 19.4), maternal history of recent diarrhea (AOR, 5.5 ...

  19. Predictors of neonatal outcome in early-onset placental dysfunction

    NARCIS (Netherlands)

    Baschat, Ahmet A.; Cosmi, Erich; Bilardo, Catarina M.; Wolf, Hans; Berg, Christoph; Rigano, Serena; Germer, Ute; Moyano, Dolores; Turan, Sifa; Hartung, John; Bhide, Amarnath; Müller, Thomas; Bower, Sarah; Nicolaides, Kypros H.; Thilaganathan, Baskaran; Gembruch, Ulrich; Ferrazzi, Enrico; Hecher, Kurt; Galan, Henry L.; Harman, Chris R.

    2007-01-01

    To identify specific estimates and predictors of neonatal morbidity and mortality in early onset fetal growth restriction due to placental dysfunction. Prospective multicenter study of prenatally diagnosed growth-restricted liveborn neonates of less than 33 weeks of gestational age. Relationships

  20. Predictors of Developmental Outcomes for Infants Who Are Medically Fragile.

    Science.gov (United States)

    Smith, Timothy B.; Boyce, Glenna C.

    This paper presents results of a preliminary study which evaluated medical birth data as potential predictors of developmental outcome, and developed and tested an instrument designed for this purpose. Forty low birthweight children, all of whom had experienced neonatal intraventricular hemorrhage, were evaluated at school age (66 months) on the…

  1. Personal factors and personality characteristics as predictors of ...

    African Journals Online (AJOL)

    The study set to investigate personal factors and personality characteristics as Predictors of customers satisfaction with health care services. The study utilized Ex-Post Facto design. A total number of 100 participants took part in the study which were made up of 57 (57%) males and 48 (48%) females, with a mean age of ...

  2. Showing the Love: Predictors of Student Loyalty to Undergraduate Institutions

    Science.gov (United States)

    Vianden, Jörg; Barlow, Patrick J.

    2014-01-01

    This article advances the notion that undergraduates may be considered student-customers whose relationship with and loyalty to their institutions can be managed by college educators. The Student University Loyalty Instrument administered to 1,207 undergraduates at three comprehensive Midwestern institutions assessed the predictors of student…

  3. Self-actualization and empathy as predictors of marital satisfaction.

    Science.gov (United States)

    Rowan, D G; Compton, W C; Rust, J O

    1995-12-01

    The relationships between marital satisfaction, self-actualization, and empathy scores were tested for 30 intact couples. Analyses indicated that both satisfaction and empathy scores were independent predictors of marital satisfaction scores for men, but not for women. Implications were discussed.

  4. Predictors of Appraisal and Coping Dimensions in Myocardial Infarction Victims.

    Science.gov (United States)

    Lee, Hyong Sil; Martin, Peter

    This study attempted to identify predictors of perception and coping after the occurrence of a myocardial infarction. Sixty males and 17 females who had suffered from a myocardial infarction within 3 months prior to the research were recruited from a hospital rehabilitation program. Subjects completed the Peri-Life Events Scale, the 16-PF…

  5. Socio-demographic and psychosocial predictors of rheumatoid ...

    African Journals Online (AJOL)

    Objectives. To investigate the psychosocial aspects of rheumatoid arthritis (RA) and to determine the predictors of RA health outcome in a low socio-economic group of clinic-based adult RA patients. Design. This was a cross-sectional study. Clinic-based adult RA patients were subjected to a series of selfadministered ...

  6. Pattern and predictors of psychosocial disorders among overweight ...

    African Journals Online (AJOL)

    obese child is a bully rather than a victim), fatigue, poor academic performance ... This study aims to determine the pattern and predictors of psychosocial disorders among overweight and obese children in. Enugu, Nigeria. ... Participants' weight and height were measured and their body mass index (BMI) determined.

  7. Trend of modern contraceptive uptake and its predictors among ...

    African Journals Online (AJOL)

    Predictors of client choice were determined by logistic regression expressed as odds ratio [OR] (95% confidence interval [CI]). .... in logistics supply chain, donor dependence, poor-quality services, and dearth of skilled health personnel to ..... information management systems. Conclusion. Client's age and educational ...

  8. Dealing with missing predictor values when applying clinical prediction models.

    NARCIS (Netherlands)

    Janssen, K.J.; Vergouwe, Y.; Donders, A.R.T.; Harrell Jr, F.E.; Chen, Q.; Grobbee, D.E.; Moons, K.G.

    2009-01-01

    BACKGROUND: Prediction models combine patient characteristics and test results to predict the presence of a disease or the occurrence of an event in the future. In the event that test results (predictor) are unavailable, a strategy is needed to help users applying a prediction model to deal with

  9. Predictors of Male Condom Utilization in Plateau State, Nigeria

    African Journals Online (AJOL)

    2017-10-26

    Oct 26, 2017 ... government to reduce the incidence of HIV by using condom as a means of dual protection, the utilization of male condom is still relatively low in Nigeria. This study aimed to assess the condom utilization and predictors of condom use among male respondents in Plateau State. Methodology: An analysis of ...

  10. Predictors of Racial Prejudice in White American Counseling Students

    Science.gov (United States)

    Castillo, Linda G.; Conoley, Collie W.; King, Jennifer; Rollins, Dahl; Rivera, Saori; Veve, Mia

    2006-01-01

    This study extends the research on racial prejudice by combining previously identified predictors into 1 study to determine their relative importance in contributing to racial prejudice. Results revealed that White racial identity significantly predicted racial prejudice when demographic variables were controlled. Implications of reducing racial…

  11. Predictors of Psychological Adaptation of Cape Verdean Students in Portugal

    Science.gov (United States)

    Neto, Félix; Wilks, Daniela C.

    2017-01-01

    We examined the predictors of psychological adaptation regarding subjective well-being and loneliness among international students. The sample included 243 Cape Verdean students attending Portuguese universities, and the control group was composed by 265 native-born Portuguese students. The latter group reported higher levels of well-being and…

  12. Predictors of early neonatal mortality at a neonatal intensive care ...

    African Journals Online (AJOL)

    admin

    Predictors of early neonatal mortality at a neonatal intensive care unit of a specialized referral teaching hospital in. Ethiopia. Bogale Worku1, Assaye Kassie2, Amha Mekasha1, Birkneh Tilahun1, Alemayehu Worku3. Abstract. Background: The larger fraction of infant mortality is that of neonatal; and early neonatal death is ...

  13. Predictors of Depressive Symptoms among Inpatient Substance Abusers

    Science.gov (United States)

    Diaz, Naelys; Green, Diane; Horton, Eloise G.

    2009-01-01

    The existing literature indicates high comorbidity rates between depressive disorders and substance abuse disorders. Despite these elevated rates, there is limited empirical work devoted to understanding predictors of depressive symptoms among substance abusers. The aim of this study was to examine the effect of spirituality, believing in God's…

  14. Predictors of responses to immune checkpoint blockade in advanced melanoma

    DEFF Research Database (Denmark)

    Jacquelot, N; Roberti, M P; Enot, D P

    2017-01-01

    stage III MMel patients after adjuvant ipilimumab + nivolumab (but not nivolumab alone). These biomarkers should be validated in prospective trials in MMel.The clinical management of metastatic melanoma requires predictors of the response to checkpoint blockade. Here, the authors use immunological...

  15. Predictors of Recurrence and Complications After Chronic Subdural Hematoma Surgery

    DEFF Research Database (Denmark)

    Bartek, Jiri; Sjåvik, Kristin; Kristiansson, Helena

    2017-01-01

    OBJECTIVE: To investigate predictors of recurrence and moderate to severe complications after burr-hole surgery for chronic subdural hematoma (cSDH). METHODS: A retrospective review was conducted in a Scandinavian single-center population-based cohort of 759 adult patients with cSDH operated with...

  16. Predictors of efficacy in depression prevention programmes. Meta-analysis.

    NARCIS (Netherlands)

    Jané Llopis, E.; Hosman, C.M.H.; Jenkins, R.B.; Anderson, P.D.

    2003-01-01

    BACKGROUND: Worldwide, 340 million people are affected by depression, with high comorbid, social and economic costs. AIMS: To identify potential predictors of effect in prevention programmes. METHOD: A meta-analysis was made of 69 programmes to reduce depression or depressive symptoms. RESULTS: The

  17. Family and Individual Predictors of Late Adolescents' Romantic Relationships.

    Science.gov (United States)

    Reese-Weber, Marla; Marchand, Jennifer F.

    2002-01-01

    Studied parent-adolescent conflict and late adolescents' attachment anxiety and depressive symptoms as predictors of late adolescents' romantic relationships. Findings based on questionnaire responses of 256 college students highlight the differential roles of familial and individual attributes in female and male adolescents' romantic relationship…

  18. Prevalence and Predictors of Traditional Medicine Utilization among ...

    African Journals Online (AJOL)

    Prevalence and Predictors of Traditional Medicine Utilization among Persons Living With AIDS (PLWA) on Antiretroviral (ARV) and Prophylaxis Treatment in both Rural and Urban Areas in South Africa. GD Hughes, TR Puoane, BL Clark, TL Wondwossen, Q Johnson, W Folk ...

  19. Predictors of multidisciplinary treatment outcome in fibromyalgia: a systematic review

    NARCIS (Netherlands)

    de Rooij, A.; Roorda, L.D.; Otten, R.H.J.; van der Leeden, M.; Dekker, J.; Steultjens, M.P.M.

    2013-01-01

    Purpose: To identify outcome predictors for multidisciplinary treatment in patients with chronic widespread pain (CWP) or fibromyalgia (FM). Methods: A systematic literature search in PubMed, PsycINFO, CINAHL, Cochrane Library, EMBASE and Pedro. Selection criteria included: age over 18; diagnosis

  20. Predictors of family planning awareness and practice among ...

    African Journals Online (AJOL)

    Background: Men are powerful decision makers especially in developing countries. Their permission and support are required for women to access family planning services. This study was conducted to assess the predictors of family planning awareness and practice among married men in a semi-urban community in ...

  1. Video Game Strategies as Predictors of Academic Achievement

    Science.gov (United States)

    Hamlen, Karla R.

    2014-01-01

    The purpose of this study was to investigate relationships between strategies students use to overcome challenges in both video games and homework assignments, and whether or not these are predictors of academic performance in school. Data were collected through an online survey of students, primarily in middle and high school, assessing both…

  2. Epistemological Predictors of Prospective Biology Teachers' Nature of Science Understandings

    Science.gov (United States)

    Köseoglu, Pinar; Köksal, Mustafa Serdar

    2015-01-01

    The purpose of this study was to investigate epistemological predictors of nature of science understandings of 281 prospective biology teachers surveyed using the Epistemological Beliefs Scale Regarding Science and the Nature of Science Scale. The findings on multiple linear regression showed that understandings about definition of science and…

  3. Adolescent Gambling: A Narrative Review of Behavior and Its Predictors

    Science.gov (United States)

    Ariyabuddhiphongs, Vanchai

    2013-01-01

    This narrative review summarizes current knowledge on adolescent gambling for the period 1990-2010, assesses adolescent gambling behavior and person and environment predictors, and suggests directions for future research. The review includes 99 studies that identified their subjects as adolescents, children, youth, and students, and discusses…

  4. Predictors of distress and anxiety during pregnancy | Roos | African ...

    African Journals Online (AJOL)

    Objective: There is a high incidence of distressing psychological symptoms including anxiety in pregnancy. Nevertheless, predictors of distress and anxiety during pregnancy have not been well characterized. We determined whether temperament and character, trait anxiety, resilience, and social support predicted distress ...

  5. Of Dutch courage and mobile chimneys: Pattern and predictors of ...

    African Journals Online (AJOL)

    Previous studies in Nigeria have associated alcohol and tobacco use among students with certain socioeconomic and educational achievement variables, albeit its determinants among university students remain largely unknown. This study examined current patterns and predictors of alcohol and tobacco use with a model ...

  6. Micro- and Macrosystem Predictors of High School Male Suicidal Behaviors

    Science.gov (United States)

    Beck-Cross, Cathy; Cooper, Robyn

    2015-01-01

    Suicide is the third leading cause of death among young people ages 15 to 19 years, with male adolescents four times more likely to die than their female peers. This study used Bronfenbrenner's bioecological model to examine micro- and macrosystems as predictors of suicidal behaviors through responses by male adolescents (N = 9,910) to a statewide…

  7. Vertically integrated moisture flux convergence as a predictor of thunderstorms

    NARCIS (Netherlands)

    van Zomeren, J.; van Delden, A.J.

    2007-01-01

    Vertically Integrated Moisture Flux Convergence (VIMFC) alone and in combination with the lifted stability index of the most unstable layer (SMUL) is evaluated as a thunderstorm predictor. By using six-hourly standard pressure weather analysis data from the European Centre for Medium-range Weather

  8. Predictors of job search behavior among employed and unemployed people

    NARCIS (Netherlands)

    Hooft, E.A.J. van; Born, M.P.; Taris, T.W.; Flier, H.V. der; Blonk, R.W.B.

    2004-01-01

    This study investigated job search behavior and its predictors among employed and unemployed people. Ajzen's (1985) theory of planned behavior (TPB) was used to predict job search intention and behavior in both groups. In addition, we examined the indirect effects of several other variables (i.e.,

  9. Predictors of job search behavior among employed and unemployed people

    NARCIS (Netherlands)

    E.A.J. van Hooft (Edwin); M.Ph. Born (Marise); T.W. Taris (Toon); H. van der Flier (Henk); R.W.B. Blonk (Roland)

    2004-01-01

    textabstractThis study investigated job search behavior and its predictors among employed and unemployed people. Ajzen’s (1985) theory of planned behavior (TPB) was used to predict job search intention and behavior in both groups. In addition, we examined the indirect effects of several other

  10. Perceived Supervisor's Support and Job Insecurity as Predictors of ...

    African Journals Online (AJOL)

    Organisational stability is central to the strength of human development and organizational effectiveness which enables sustainable nation's development amidst global competitiveness. Hence this study examined perceived supervisor's support and job insecurity as predictors of employee anxiety. The study participants ...

  11. Investigating the Prevalence and Predictors of Media Multitasking across Countries

    NARCIS (Netherlands)

    Voorveld, H.A.M.; Segijn, C.M.; Ketelaar, P.E.; Smit, E.G.

    2014-01-01

    This study provides insight into the prevalence and predictors of different forms of media multitasking across different countries. Results of a survey of 5,973 participants from six countries (the United States, the United Kingdom, Germany, the Netherlands, Spain, and France) demonstrated that

  12. Investigating the prevalence and predictors of media multitasking across countries

    NARCIS (Netherlands)

    Voorveld, H.A.M.; Segijn, C.M.; Ketelaar, P.E.; Smit, E.G.

    2014-01-01

    This study provides insight into the prevalence and predictors of different forms of media multitasking across different countries. Results of a survey of 5,973 participants from six countries (the United States, the United Kingdom, Germany, the Netherlands, Spain, and France) demonstrated that

  13. Clinical predictors for the prognosis of myasthenia gravis.

    Science.gov (United States)

    Wang, Lili; Zhang, Yun; He, Maolin

    2017-04-19

    Clinical predictors for myasthenia gravis relapse and ocular myasthenia gravis secondary generalization during the first two years after disease onset remain incompletely identified. This study attempts to investigate the clinical predictors for the prognosis of Myasthenia Gravis. Eighty three patients with myasthenia gravis were concluded in this study. Baseline characteristics were analyzed as predictors. Relapse of myasthenia gravis developed in 26 patients (34%). Generalization developed in 34 ocular myasthenia gravis patients (85%). Other autoimmune diseases were observed more commonly in relapsed myasthenia gravis (P = 0.012). Second generalization group contained more late onset patients (P = 0.021). Ocular myasthenia gravis patients with thymus hyperplasia progressed more rapidly than those with other thymus pathology (P = 0.027). Single onset symptom of ocular myasthenia gravis such as ptosis or diplopia predicted early progression than concurrence of ptosis and diplopia (P = 0.027). Treatment effect including glucocorticoid, pyridostigmine, thymectomy, IVIG, immunosuppressive drugs did not show significant difference between the relapsed and non-relapsed groups. The treatment outcome also showed no difference between the single OMG and second generalized groups. Occurrence of associated autoimmune disease can serve as a potential predictor for myasthenia gravis relapse. Either ptosis or diplopia, as well as thymic hyperplasia can predict generalization in the first six months.

  14. Predictors of Diabetic Retinopathy in Patients with Type 2 Diabetes ...

    African Journals Online (AJOL)

    Conclusion: The risk of DR exists in patients with type 2 diabetes even in normoalbuminuric individuals. Close monitoring is particularly needed if patients have longer duration of diabetes, hypertension, anemia, or high normal albuminuria. Keywords: Albuminuria, Diabetic retinopathy, Predictors, Type 2 diabetes mellitus ...

  15. Predictors of Vitamin D Deficiency in Predialysis Patients with Stage ...

    African Journals Online (AJOL)

    Objective: Vitamin D status and risk factors of Vitamin D deficiency in chronic kidney disease (CKD) patients in China have been seldom reported before. In this study, we aim to investigate serum 25‑hydroxyvitamin D [25(OH)D] status and find the predictors of Vitamin D deficiency in predialysis patients with Stage 3–5 CKDs ...

  16. Empirical Investigation of Predictors of Success in an MBA Programme

    Science.gov (United States)

    Gupta, Atul; Turek, Joseph

    2015-01-01

    Purpose: The twofold purpose of this study was to determine if selected variables were predictors of: student performance in the MBA programme; and student performance on the MBA MFT exam. Design/methodology/approach: This study focuses on MBA graduates at a US university who have successfully completed the entire programme requirements. Real…

  17. Lossless Compression Schemes for ECG Signals Using Neural Network Predictors

    Directory of Open Access Journals (Sweden)

    C. Eswaran

    2007-01-01

    Full Text Available This paper presents lossless compression schemes for ECG signals based on neural network predictors and entropy encoders. Decorrelation is achieved by nonlinear prediction in the first stage and encoding of the residues is done by using lossless entropy encoders in the second stage. Different types of lossless encoders, such as Huffman, arithmetic, and runlength encoders, are used. The performances of the proposed neural network predictor-based compression schemes are evaluated using standard distortion and compression efficiency measures. Selected records from MIT-BIH arrhythmia database are used for performance evaluation. The proposed compression schemes are compared with linear predictor-based compression schemes and it is shown that about 11% improvement in compression efficiency can be achieved for neural network predictor-based schemes with the same quality and similar setup. They are also compared with other known ECG compression methods and the experimental results show that superior performances in terms of the distortion parameters of the reconstructed signals can be achieved with the proposed schemes.

  18. Predictors of treatment success in smoking cessation with ...

    African Journals Online (AJOL)

    for this ratio may change the predictors of success. From a behavioural science perspective, another recent study found that financial incentives were associated with successful smoking cessation and that harnessing the individual's aversion to loss in a cessation programme may encourage a change in smoking behaviour.

  19. Predictors of contraceptive use among migrant and non-migrant ...

    African Journals Online (AJOL)

    Evidences reveal low level of contraceptive usage in Nigeria despite high knowledge and efforts of different institutions to influence behavior. It therefore necessary to examine the predictors of contraceptive use. Data for study are from 2008 Nigeria Demographic and Health Survey matched couples. Logistic regression was ...

  20. Cell Mean Versus Best Linear Unbiased Predictors in Biplot ...

    African Journals Online (AJOL)

    In multi-environment trials, accurate estimation of yields in individual environments and astute choice ... AMMI analysis of variance based on cell means depicted the first five ..... Genotype grain yield expressed as best linear unbiased predictors for 39 barley genotypes grown in 18 environments (a combination of 3 sowing.