Full Text Available Se presentan cuatro pacientes con leishmaniasis difusa, procedentes de cuatro regiones de Colombia, diagnosticados inicialmente mediante el estudio histopatológico. Dos casos tenían lesiones diseminadas, en una niña de 10 años y en un hombre de 80 años. Los otros dos casos, hombres de 33 y 62 años, presentaron lesiones nodulares iniciales que curaron con calor local y Glucantime. Todos tuvieron leishmaninas negativas. Se confirma que la entidad puede curar cuando no está diseminada. El calor local fue muy útil en un caso con lesión única inicial. La inoculación al hamster con macerados de biopsias de dos de los pacientes les originó prominentes "histiocitomas" en el hocico y las almohadillas plantares. En un caso no diseminado se identificó el parásito como L. m. amazonensis mediante isoenzimas. En el paciente de 80 años, el agente causal fue una cepa de L. mexicana. llustramos las lesiones clínicas, enfatizamos el aspecto típico de la imagen histopatológica e ilustramos y discutimos la relación leishmaniamacrófago mediante imágenes de microscopía electrónica. Las características de la enfermedad y la literatura sobre la misma se revisa ampliamente.
Llamazares Rodríguez, Bonifacio
Full Text Available En el marco convencional de la modelización de preferencias, la factorización de una relación de preferencia débil en sus componentes simétrica y asimétrica se realiza de forma única. En el ámbito de la lógica difusa, algunas de las propiedades empleadas para caracterizar dicha descomposición admiten distintas generalizaciones. Como consecuencia, la factorización de una relación difusa de preferencia débil no es única, puesto que depende tanto del conjunto de propiedades que se utilice, como de la tnorma y t-conorma elegidas para la representación de la intersección y de la unión de conjuntos difusos. En este trabajo se hace una revisión de las principales factorizaciones existentes en la literatura y se generaliza y caracteriza la dada por Barret y Pattanaik (1989.
... 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...
Boris E. Vesga
Full Text Available La reestenosis intrastent es la reacumulación de material tisular dentro del lumen de un vaso coronario en el sitio receptor de intervencionismo previo con balón o stent, como consecuencia a una respuesta normal de cicatrización que tiene la pared vascular ante la existencia de daño mecánico. Es el resultado de dos procesos histopatológicos: la hiperplasia neointimal, dada por la migración y proliferación del músculo liso y el depósito de matriz extracelular, y la remodelación vascular. Se manifiesta clínicamente con síntomas de isquemia y hallazgos angiográficos que evidencian reducción de al menos 50% de la luz del vaso previamente tratado con stent. Para el manejo se recomienda la utilización de stent medicados de segunda generación o balones impregnados de medicamento según el tipo de reestenosis a tratar. No se alienta a la utilización de stent o de balón convencionales como única medida para manejo de la reestenosis intrastent.
Helbert Eduardo Espitia Cuchango
Full Text Available Este documento describe la estructura de un sistema de inferencia difusa basado en relaciones booleanas. La teoría relacionada con lógica y conjuntos booleanos es una buena herramienta para el diseño de automatismos y sistemas digitales. Una variación con la cual se busca mejorar los sistemas basados en automatismos consiste en emplear conjuntos difusos en lugar de booleanos. Lo anterior se realiza con el objetivo de tener una acción continua en el actuador del automatismo. Al realizar esta variación y al aplicar la metodología de diseño de los sistemas de automatismos, aparecen los sistemas de inferencia difusa basados en relaciones booleanas.Aunque inicialmente esta propuesta se realizó considerando sistemas de automatismos, se observa que es posible extenderla a sistemas de inferencia difusa.
... 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...
... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Sales by intrastate... AUTHORITIES CERTAIN SALES AND TRANSPORTATION OF NATURAL GAS UNDER THE NATURAL GAS POLICY ACT OF 1978 AND RELATED AUTHORITIES Certain Sales by Intrastate Pipelines § 284.142 Sales by intrastate pipelines. Any...
Salgado de la Rosa, María Asunción
Como debate al estado de simbiosis interdisciplinar en el que se mueve la arquitectura y las especulaciones acerca del carácter interdisciplinar de la misma, a caballo entre arte y técnica, se aborda la cuestión desde el ámbito de la arquitectura con cuatro puntos de partida que aciertan a definir el problema de la línea difusa.
... 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...
... 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...
Bravo Graterol, Ricardo Alejandro
En este trabajo se describen las características de 5 trabajadores de la limpieza que fueron diagnosticados de enfermedad pulmonar intersticial difusa no aguda de causa desconocida mediante biopsia pulmonar quirúrgica. La edad media fue de 64 años y 4 fueron mujeres. Las exposiciones más frecuentes fueron el salfumán y lejía, y ninguno de los pacientes utilizó protección adecuada. Las características más llamativas de estos pacientes se observaron en la TACAR y la histopatología que mostraron...
... 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...
...] Capacity Transfers on Intrastate Natural Gas Pipelines October 21, 2010. AGENCY: Federal Energy Regulatory... comments on whether and how holders of firm capacity on intrastate natural gas pipelines providing interstate transportation and storage services under section 311 of the Natural Gas Policy Act of 1978 and...
... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Transportation by intrastate pipelines. 284.122 Section 284.122 Conservation of Power and Water Resources FEDERAL ENERGY... 1978 AND RELATED AUTHORITIES Certain Transportation by Intrastate Pipelines § 284.122 Transportation by...
Yunos Muhammad Nur Annuar Mohd
Full Text Available The increase in number of the world population have affected the demand for public transport especially in larger cities. Intrastate buses are chosen as the main public transport by many people due to its affordable fares. Therefore, a better performance of the intrastate bus drivers would be significant to cater the high demand. Nevertheless, distraction among the intrastate bus drivers have been found as one of the major factors that could affect the performance of the drivers. Therefore, the objective of this paper is to provide a better understanding on the factors of distraction among intrastate bus drivers. This paper refers to findings from previous researches which are related to this field of study. In conclusion, this paper will provide a list of factors of distraction among the intrastate bus drivers which may degrade their performance.
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.
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.
Universidad del Rosario, Facultad de Administración; Mendoza Saboya, Liliana Adriana
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...
Guo Zhifu; Zheng Xing; Qin Yongwen
Durg-eluting stent has been regarded as the milestone in the history of PCI for their efficiency in the prevention of coronary arterial restenosis after percutaneous coronary intervention. But unfortunately intra-stent thrombosis continues to be a serious complication of contemporary DES use. The incidence of drug-eluting stents thrombosis is at least not lower than that of bare metal stents at present. The clinical consequences of stent thrombosis are frequently catastrophic, including death in 40% to 50% of the cases or major myocardial infarction in 60% to 70%. Premature discontinuation of standard antiplatelet therapy is by far the most important predictor of stent thrombosis with DES and other predictors included renal failure, diabetes, bifurcation lesions, multiple lesions or multivessel disease, long stents, female, advanced age, stent underexpansion and residual stenosis etc. The delayed endothelialization may be the underling mechanism of DES thrombosis. (authors)
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
...; Order No. 735-A] Contract Reporting Requirements of Intrastate Natural Gas Companies Issued December 16... Storage Report for Intrastate Natural Gas and Hinshaw Pipelines. Order No. 735-A generally reaffirms the... reporting requirements for (1) intrastate natural gas pipelines \\2\\ providing interstate transportation...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Northeast Indiana Intrastate Air... Air Quality Control Regions § 81.216 Northeast Indiana Intrastate Air Quality Control Region. The Northeast Indiana Intrastate Air Quality Control Region (Indiana) consists of the territorial area...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Northeast Georgia Intrastate Air... Air Quality Control Regions § 81.237 Northeast Georgia Intrastate Air Quality Control Region. The Northeast Georgia Intrastate Air Quality Control Region consists of the territorial area encompassed by the...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Northeast Arkansas Intrastate Air... Air Quality Control Regions § 81.139 Northeast Arkansas Intrastate Air Quality Control Region. The Northeast Arkansas Intrastate Air Quality Control Region consists of the territorial area encompassed by the...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Northeast Kansas Intrastate Air... Air Quality Control Regions § 81.251 Northeast Kansas Intrastate Air Quality Control Region. The Northeast Kansas Intrastate Air Quality Control Region consists of the territorial area encompassed by the...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Northeast Plateau Intrastate Air... Air Quality Control Regions § 81.162 Northeast Plateau Intrastate Air Quality Control Region. The Northeast Plateau Intrastate Air Quality Control Region (California) consists of the territorial area...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false San Luis Intrastate Air Quality Control Region. 81.176 Section 81.176 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... Quality Control Regions § 81.176 San Luis Intrastate Air Quality Control Region. The San Luis Intrastate...
Nunes, Catarina S.
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).
... POLICY ACT OF 1978 AND RELATED AUTHORITIES Emergency Natural Gas Sale, Transportation, and Exchange... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Intrastate pipeline emergency transportation rates. 284.267 Section 284.267 Conservation of Power and Water Resources FEDERAL...
.... 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...
.... 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...
... 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...
... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Certain transportation by intrastate pipelines. 284.227 Section 284.227 Conservation of Power and Water Resources FEDERAL... Interstate Pipelines on Behalf of Others and Services by Local Distribution Companies § 284.227 Certain...
Alexandre Antonio Marques Rosa
Full Text Available A neurorretinite subaguda difusa unilateral (DUSN é uma forma de uveíte que pode potencialmente levar à cegueira. No Brasil e em outras partes da América do Sul, a neurorretinite subaguda difusa unilateral cada vez mais é considerada uma causa importante de uveíte posterior em crianças e em adultos jovens e saudáveis. Se diagnosticada e tratada ainda em fase inicial, permite uma resolução dos sintomas com melhora da acuidade visual. Caso progrida para a fase tardia, poderá acarretar uma perda visual significativa. Nesse estudo, por meio de uma revisão da literatura, descreve-se as principais características desta doença, incluindo os seguintes aspectos: histórico, etiologia, fisiopatologia, quadro clínico, diagnóstico, diagnóstico diferencial e tratamento.
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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 Southwest Florida Intrastate Air Quality Control Region consists of the territorial area encompassed by the...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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...
... 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 Middle Tennessee Intrastate Air Quality Control Region consists of the territorial area encompassed by...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Austin-Waco Intrastate Air Quality Control Region. 81.134 Section 81.134 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... Quality Control Regions § 81.134 Austin-Waco Intrastate Air Quality Control Region. The Austin-Waco...
... 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...
...] Storage Reporting Requirements of Interstate and Intrastate Natural Gas Companies AGENCY: Federal Energy... the semi-annual storage reporting requirements for Interstate and Intrastate Natural Gas Companies... proposes to eliminate the semi-annual storage reporting requirements for: (1) Interstate natural gas...
...; Order No. 757] Storage Reporting Requirements of Interstate and Intrastate Natural Gas Companies AGENCY... eliminates the semi-annual storage reporting requirements for Interstate and Intrastate Natural Gas Companies...-annual storage reporting requirements for (1) interstate natural gas companies subject to the Commission...
...] Storage Reporting Requirements of Interstate and Intrastate Natural Gas Companies December 16, 2010... natural gas pipelines to report semi-annually on their storage activities. This Notice of Inquiry will... reports required of interstate and intrastate natural gas companies pursuant to 18 CFR 284.13(e) and 284...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Northeast Iowa Intrastate Air Quality Control Region. 81.256 Section 81.256 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... Quality Control Regions § 81.256 Northeast Iowa Intrastate Air Quality Control Region. The Northeast Iowa...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Northeast Mississippi Intrastate Air... 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...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Hampton Roads Intrastate Air Quality Control Region. 81.93 Section 81.93 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... Quality Control Regions § 81.93 Hampton Roads Intrastate Air Quality Control Region. The Metropolitan...
Full Text Available Autores como Prasanta Pattanaik  encuentran en la lógica difusa un modo de superar las restricciones de la condición de racionalidad económica neoclásica. Ellos se sirven de este instrumento matemático para hacer una reinterpretación del planteamiento de la elección social que Arrow  modeló con relaciones de preferencia ajustadas a una lógica binaria. El propósito de este trabajo es doble. Por un lado se desarrolla el planteamiento del Teorema de Imposibilidad de Arrow , resaltando la importancia de la transitividad impuesta a las relaciones de preferencia como condición de racionalidad, y mostrando cómo la transitividad adquiere distintas formas cuando se incluyen relaciones de preferencia difusas. De otra parte, se examinan las reglas de agregación y las medidas del consenso propuestas por los autores que estudian la elección social dentro de una estructura difusa.Authors as Prasanta Pattanaik  find in the fuzzy logic a way to go beyond the restrictions of the conditions of neoclassic economic rationality. They use this mathematical tool to reinterpret the social choice proposal, which was modelled by Arrow  with preference relations adjusted to binary logic. This paper has two goals. To begin with, the Arrow´s  approach of the Impossibility Theorem is developed. It gives importance to the transitivity condition imposed to preference relations as a condition for rationality and shows how this condition acquires different forms when fuzzy preference relations are used. On the other hand, the rules of aggregation and consensus measure that are proposed by authors working on social choice in fuzzy framework are examined.
Ana L. Zuma de Rosso
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.
Camargo Moreno, Roberto
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 ...
.... The United States, while maintaining its accustomed readiness to deal with interstate conflict, also has a keen interest in preparing for a range of possible interventions in intrastate conflict...
Lorelei Ortega Díaz
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
Full Text Available En este trabajo estudiamos la resolución numérica de sistemas de ecuaciones no lineales difusas. Más precisamente describimos, analizamos y simulamos métodos numéricos, tales como el método de Newton, con el fin de aproximar de forma eficiente las soluciones a dichos problemas. Una de las características principales de este tipo de problemas es que las téc- nicas analíticas estándares de soluciones no son adecuadas para resolverlos. Por esta razón, en este artículo nos centramos en el estudio de los resulta- dos conocidos para los métodos numéricos clásicos y en su adaptación a la resolución de problemas difusos. Resumen.
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.
Lionel Rodolfo Baquero Hernández; Osviel Rodríguez Valdés; Febe Ángel Ciudad Ricardo
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...
Toft, Peter, E-mail: email@example.com [Institute for Energy, Joint Research Centre of the European Commission, Westerduinweg 3, 1755 ZG Petten (Netherlands)
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.
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.
M. Paula Aparicio M
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
Yen Bin, Teo; Azlis-Sani, Jalil; Nur Annuar Mohd Yunos, Muhammad; Ismail, S. M. Sabri S. M.; Tajedi, Noor Aqilah Ahmad
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.
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.
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.
... the Web site that enables subscribers to receive e-mail notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please e-mail [email protected] Intrastate Pipeline, LLC submitted a baseline filing of its Transport Statement of Operating Conditions for...
Letendre, Kenneth; Fincher, Corey L; Thornhill, Randy
Geographic and cross-national variation in the frequency of intrastate armed conflict and civil war is a subject of great interest. Previous theory on this variation has focused on the influence on human behaviour of climate, resource competition, national wealth, and cultural characteristics. We present the parasite-stress model of intrastate conflict, which unites previous work on the correlates of intrastate conflict by linking frequency of the outbreak of such conflict, including civil war, to the intensity of infectious disease across countries of the world. High intensity of infectious disease leads to the emergence of xenophobic and ethnocentric cultural norms. These cultures suffer greater poverty and deprivation due to the morbidity and mortality caused by disease, and as a result of decreased investment in public health and welfare. Resource competition among xenophobic and ethnocentric groups within a nation leads to increased frequency of civil war. We present support for the parasite-stress model with regression analyses. We find support for a direct effect of infectious disease on intrastate armed conflict, and support for an indirect effect of infectious disease on the incidence of civil war via its negative effect on national wealth. We consider the entanglements of feedback of conflict into further reduced wealth and increased incidence of disease, and discuss implications for international warfare and global patterns of wealth and imperialism.
... 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...
... 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...
... 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...
... 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...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Central Massachusetts Intrastate Air Quality Control Region. 81.142 Section 81.142 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY...: Township—Ashburnham, Ashby, Athol, Auburn, Barre, Berlin, Blackstone, Boylston, Brookfield, Charlton...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Central Virginia Intrastate Air Quality Control Region. 81.143 Section 81.143 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY..., Lynchburg, Martinsville, South Boston. Towns—Blackstone, Farmville, Rocky Mount, South Hill. ...
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 ...
...] Revisions to Procedural Regulations Governing Transportation by Intrastate Pipelines; Electronic Tariff... under the Commission's jurisdiction pursuant to the Natural Gas Policy Act of 1978 or the Natural Gas Act.\\1\\ Take notice that, effective November 12, 2013, the list of available eTariff Type of Filing...
...; Order No. 735] Contract Reporting Requirements of Intrastate Natural Gas Companies May 20, 2010. AGENCY... revises the contract reporting requirements for those natural gas pipelines that fall under the Commission's jurisdiction pursuant to section 311 of the Natural Gas Policy Act or section 1(c) of the Natural...
... used to transport a flammable cryogenic liquid, hazardous substance, hazardous waste, or a marine... be used by an intrastate motor carrier for transportation of a flammable liquid petroleum product in... flammable liquid petroleum product in accordance with the provisions of paragraph (d) of this section. (d...
MARTÍN DARIO ARANGO SERNA
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.
Claudia Cruz Martínez
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%.
Sandoval, HP; Vargas, LG; Holzer, MP; Kasper, TJ; Vroman, DT; Apple, DJ; Solomon, KD
Objetivo: El propósito de este estudio es evaluar el uso de un agente anti-inflamatorio, no esteroideo, en el tratamiento de la queratitis lamelar difusa inducida en un modelo animal. Materiales y Métodos: Se creó un flap corneal en 40 ojos de 20 conejos pigmentados con el microqueratomo ASC y la entrecara fue inoculada con endotoxina de Pseudomona aeruginosa o Palmolive® Ultra jabón líquido. Los conejos fueron divididos en dos grupos: El grupo I (n= 20) recibió tratamiento con Ketorolaco tro...
MARTÍN DARÍO ARANGO SERNA
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.
Mendoza Saboya, Liliana Adriana
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...
Mendoza Saboya, Liliana Adriana
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...
Sanfélix Forner, Vicenta
El transporte, almacenamiento y manipulación al aire libre de materiales sólidos pulverulentos conlleva frecuentes episodios de contaminación atmosférica por emisiones difusas de material particulado (PM), cuyo impacto sobre la calidad del aire y el medio ambiente puede llegar a ser significativo. Desde un punto de vista técnico y legislativo a este tipo de emisiones se les ha prestado tradicionalmente una atención limitada, debido probablemente a la complejidad inherente que conlleva la c...
Benites Noriega, Juan
El trabajo de investigación titulado "MODELAMIENTO Y SIMULACIÓN PARA ANALIZAR LA CONTAMINACIÓN DEL LAGO TITICACA, APLICANDO LÓGICA DIFUSA", se ha realizado en la ciudad de Puno con la finalidad de modelar y analizar la contaminación del Lago Titicaca, aplicando la lógica difusa para la conservación del medio ambiente y la sociedad; localizar las fuentes generadoras de la contaminación del Lago Titicaca, y mencionar como afecta la contaminación del Lago Titicaca en la salud de los habitantes q...
Lucio Flores Payán
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.
Almache Cabrera, Juan
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...
Silveira, Enio Rovere; Universidade Federal de Santa Catarina; Dantas, M. A.R.; Universidade Federal de Santa Catarina
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....
Yanaisa Riverón Ruiz
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.
ALEJANDRO AMIGO TOSSI
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.
Francisco Javier Ruvalcaba Coyaso
Full Text Available Este trabajo de investigación se enfoca en la lógica difusa. Identifica de qué manera sirve para la selección de personal y qué publicaciones relevantes existen acerca de su efectividad en el escenario empresarial. La revisión realizada se llevó a cabo a partir de una búsqueda en bases de datos especializadas. Se encuentra que la fuzzy logic puede ofrecer al proceso de selección de personal algo de certidumbre, en particular en la toma de decisiones que lo acompaña. Puede contribuir también en el proceso de identificación de la persona más adecuada para realizar un conjunto de actividades, de acuerdo, además, con su perfil psicológico. Su uso ayuda, en efecto, a disminuir la ambigüedad y la subjetividad inherentes a la decisión en estos procesos. Esto, dado que los resultados de las pruebas psicométricas y de las entrevistas no son discrecionales, ellas se acompañan, usualmente, de múltiples criterios de asignación de valor.
Elkin Mauricio López Fontal
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 .
Edna Rocio Núñez Flórez
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.
ALEJANDRO AMIGO TOSSI
Full Text Available In the current international system there are a number of intra-state situations that prevent the consolidation of a safe global environment. These states are stage of a series of events whose effects go beyond its borders. Somalia represented one of these cases between 2007 and 2010 as a series of internal events generated impacts in its neighbors, the region, and the international system. According to the above, the purpose of this article is “to analyze the cause-effect relationship between phenomena occurring within Somalia and stability of neighboring countries, the Horn of Africa and international security. As a methodology, in a first phase it is described the historical background of Somalia prior to the period analyzed, then it is analyzed internal phenomena that occurred in Somalia relevant from the perspective of international security, and finally, it is stated how these phenomena caused effects on neighboring states, the region’s stability and international security.
Marina Celli Francisco
Full Text Available OBJETIVO: verificar se existe diferença no número de abortamentos e recém-nascidos (RN de baixo peso entre as pacientes com esclerodermia (SSc se comparadas com as mulheres sem a doença entre as formas da doença e quando a manifestação da SSc ocorre antes ou após a gestação. MÉTODOS: foram incluídas 26 pacientes com SSc. Os casos foram analisados quanto ao número de gestações, abortamentos, peso ao nascer e sexo dos filhos, correlacionando-se com a forma da doença e a relação temporal do diagnóstico com a gestação. As pacientes não haviam feito uso de medicações que interferissem na gestação, nem apresentavam outra doença. Para controle foram incluídas 26 mulheres saudáveis, sem doenças que alterassem o curso da gestação, pareadas para nível socioeconômico e idade. Para estudo estatístico foram feitas tabelas de freqüência, de contingência e empregados os testes de Fisher, chi2 e Mann-Whitney. RESULTADOS: entre as pacientes com SSc, houve 96 gestações com 13,5% (n=13 de abortamentos. No grupo controle, 94 gestações com 9,6% (n=9 de abortamentos. Não houve diferença quanto ao número de RN de baixo peso nestes dois grupos (n=8 e controles, n=6, com p=0,54 e tampouco entre o número de abortos (p=0,46. Entretanto, o número de RN de baixo peso foi significativamente maior entre os casos com a forma difusa da doença (forma difusa, n=4 e limitada, n=4, com p=0,04 e em pacientes que engravidaram após o diagnóstico estabelecido de SSc (37,5% em mulheres sabidamente doentes e 6,7% em mulheres que engravidaram antes de adoecer, com p=0,03. O número de RN masculinos foi maior no grupo das SSc (p=0,002. CONCLUSÕES: as mulheres portadoras de SSc apresentam um número maior de RN de baixo peso na forma difusa da doença e quando a gravidez se estabelece após o diagnóstico clínico da doença.PURPOSE: to verify if there is any difference in the number of miscarriages and newborns with low weight in patients
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
Fariña Pérez, L.A.; Pesqueira Santiago, D.; Álvarez Álvarez, C.; Zungri Telo, E.R.
INTRODUCCIÓN: Aunque la fístula renocólica es una complicación conocida de la forma difusa de la pielonefritis xantogranulomatosa, describimos un caso inusual, por la pobreza de los síntomas y la larga evolución de la enfermedad antes de ser diagnosticada. CASO CLÍNICO: Una mujer de 75 años fue vista en el Servicio de Urgencias con fiebre y malestar general. El examen y las pruebas de laboratorio mostraron una masa en el hemiabdomen izquierdo y anemia, y en la radiografía de abdomen y la tomo...
Medina, Santiago; Zuluaga, Esteban; López, Daniel; Granda, Fabián
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...
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.
Luis Santiago - Cabán
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.
Germán García Benítez
Full Text Available Se presenta un modelo de sistema dinámico híbrido utilizando la lógica difusa. Para lograr esto se hace una breve descripción de los principales enfoques que se tienen en la actualidad de los sistemas dinámicos híbridos desarrollando las ecuaciones básicas de los bloques que conforman el modelo. Actualmente la teoría del control se ha centrado en el estudio por separado de la dinámica continua y la dinámica discreta; sin embargo, es necesario introducir el estudio de la combinación de ambos en un solo tratado. En el ámbito industrial los procesos son dinámicos y toda su estructura de control está basada en la teoría de la lógica digital. Sin embargo existe el paradigma de la lógica difusa, la cual se introduce en este artículo para proponer un nuevo enfoque. Cabe mencionar que para validar el modelo se utilizan herramientas computacionales de simulación de sistemas dinámicos.
Izquierdo Belmonte, Pablo
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, ...
Casella Antônio Marcelo Barbante
Full Text Available Os autores apresentam um caso de neurorretinite subaguda difusa unilateral (D.U.S.N confirmada com a identificação da larva em uma criança de 6 anos associada a quadro de larva migrans cutânea, bem como a análise de outros sete casos de D.U.S.N. e sua associação sorológica à toxocaríase e antecedentes de larva migrans cutânea. Este é o primeiro caso descrito na literatura de D.U.S.N. concomitante a larva migrans cutânea na fase ativa.
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
Luis Fernando Carvajal Serna
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...
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.
Edgar Andrés Patiño-Nariño
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.
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
Martín Darío Arango Serna
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.
Julián Andrés Zapata Cortés
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.
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
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)
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)
Luis Delfín Rojas Purón
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.
CLAUDIA JIMENEZ RAMIREZ
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.
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.
Full Text Available RESUMO: Devido Ã sua raridade, a Hemorragia Alveolar Difusa (HAD Ã© muitas vezes urn diagnÃ³stico esquecido. Os autores apresentam uma revisiÃ£o desta entidade a propÃ³sito do caso clÃnico de um homem de 71 anos, internado por febre, tosse seu, falÃªncia respiratÃ³ria progressiva e com o diagnÃ³stico de admissÃ£o de pneumonia da comunidade. Os exames efectuados foram compatÃveis com HAD e apÃ³s realizaÃ§Ã£o de biÃ³psia pulmonar cirÃºrgica foi admitido Hemossiderose Pulmonar IdiopÃ¡tica como diagnÃ³stico de exclusÃ£o.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 admissionâs 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
Luis Fernando Carvajal Serna
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.
Liliana González Palacio
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.
Full Text Available This essay discusses the role of NGOs in the mediation of violent intra-state conflicts. Based on the analysis of the Mozambican peace process, we tried to understand if informal actors and NGOs in particular would be best suited to mediate this type of conflict, as advocated by some. Against this current of thought, the author argues that official diplomacy still remains the most appropriate tool to lead the mediation of violent intra-state conflicts. In cases where multiple resources are used (multi-track, as was the case in Mozambique, formal actors and states, in particular, continued to play a decisive and unavoidable role because they had the resources that were not available to informal players. Informal diplomacy can complement formal diplomacy, but cannot replace it, and will always play a secondary and supporting role.
Cañal Fernández Verónica
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
Mariano Luján Corro
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.
Karen Vanessa Angulo-Sogamoso
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.
André Carnieletto Dotto
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.
Jorge Gracia Ibáñez
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
Romero, Miguel Angel
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.
SILMÉIA GARCIA ZANATI
Full Text Available A esclerose sistêmica (ES é uma doença incomum, caracterizada por alterações vasculares e fibrose em pele e vários órgãos. O envolvimento pulmonar é freqüente na ES; entretanto, hipertensão pulmonar (HP na ausência de fibrose intersticial é raramente observada. Os autores descrevem um caso de ES difusa com HP isolada em paciente do sexo feminino, de 49 anos. O diagnóstico de HP pôde ser sugerido pelo exame físico e confirmado por ecodopplercardiograma, que permitiu estimar a pressão sistólica em artéria pulmonar em 80mmHg. Tratamento foi iniciado com nifedipina; entretanto, devido a efeitos colaterais da droga, não foi possível o aumento da dose além de 30mg ao dia; nesta dosagem, a nifedipina não acarretou redução da pressão arterial pulmonar.Systemic sclerosis (SS is an uncommon disease characterized by small blood vessel vasculopathy and increased connective tissue in the skin and in other organs. The pulmonary involvement is common in SS; however, pulmonary hypertension without interstitial fibrosis is rare. The authors present a case of the diffuse form of SS with isolated pulmonary hypertension. The diagnosis of pulmonary hypertension was suggested by physical examination and confirmed by doppler-echocardiography which allowed for the estimation of the pulmonary artery systolic pressure in 80 mmHg. The authors started treatment with nifedipine; however, as the patient presented side effects, it was not possible to increase the dose beyond 30 mg/day. In this dosage, nifedipine did not decrease the pulmonary arterial pressure.
Cogollos, Jenny Natalia; Piedrahita, Paula Viviana; Urquijo, Paula Andrea
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...
Lukas, Manuel; Hillebrand, Eric
Relations between economic variables can often not be exploited for forecasting, suggesting that predictors are weak in the sense that estimation uncertainty is larger than bias from ignoring the relation. In this paper, we propose a novel bagging predictor designed for such weak predictor variab...
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.
Madelín Lima Álvarez
Full Text Available Se expone un sistema para diagnóstico de fallas en transformadores a través de mediciones cromatográficasde los gases disueltos en el aceite y su procesamiento utilizando la lógica difusa, herramientaeficaz de la inteligencia artificial, como método para el diagnóstico. En este caso se escogió de entretodos los modelos cromatográficos existentes para el diagnóstico, el de la norma IEC 599, por ser en laactualidad el de mayor validación experimental. El sistema tiene en cuenta las tres relaciones fundamentalesy las tres relaciones complementarias entre los gases disueltos en el aceite, con vistas a la definición deltipo de falla. También considera la razón del incremento de producción de los gases, para la detección deuna anomalía en el funcionamiento del equipo o de una agravante en el desarrollo de la falla. Por último,se incluye una serie de situaciones en las que no existe una falla totalmente definida por la clasificacióntradicional, emitiéndose un diagnóstico más generalizado. The following work deals with the presentation of a system for the diagnosis of failures in transformers,through chromatographic measures of the gases dissolved in oil and its process of results using the fuzzylogic, an efficient tool of the artificial intelligence, as method for the diagnosis. In this case thechromatographic model used was chosen from the existent standard IEC 599, for being at present the onewith more experimental validation. The system takes into consideration the three fundamental andcomplementary relationships among the gases dissolved in the oil, in order to define the type of failure. Italso concerns about the increase of gases, for detecting problems in the operation of equipment or offurther difficulties in the development of the failure. Finally, a series of situations where failures not totallydefined in the traditional classification are included providing a wider and more spread diagnosis.
Alexandre Henrique Gomes
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.
Patricia Aparecida de Oliveira Drechmer
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
Workman, M.; Veilleux, J. C.
Violent conflict and issues surrounding available water resources are both global problems and are connected. Violent conflict is increasingly intrastate in nature and coupled with increased hydrological variability as a function of climate change, there will be increased pressures on water resource use. The majority of mechanisms designed to secure water resources are often based on the presence of a governance framework or another type of institutional capacity, such as offered through a supra- or sub-national organization like the United Nations or a river basin organization. However, institutional frameworks are not present or loose functionality during violent conflict. Therefore, it will likely be extremely difficult to secure water resources for a significant proportion of populations in Fragile and Conflict Affected States. However, the capacity in Organisation for Economic Co-operation and Development nations for the appropriate interventions to address this problem is reduced by an increasing reluctance to participate in interventionist operations following a decade of expeditionary warfighting mainly in Iraq and Afghanistan, and related defence cuts. Therefore, future interventions in violent conflict and securing water resources may be more indirect in nature. This paper assesses the state of understanding key areas in the present literature and highlights the gap of securing water resources during violent conflict in the absence of institutional capacity. There is a need to close this gap as a matter of urgency by formulating frameworks to assess the lack of institutional oversight / framework for water resources in areas where violent conflict is prevalent; developing inclusive resource management platforms through transparency and reconciliation mechanisms; and developing endogenous confidence-building measures and evaluate how these may be encouraged by exogenous initiatives including those facilitated by the international community. This effort
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
Zapata Cortés, Julián Andrés; Arango Serna, Martín Darío; Adarme Jaimes, Wilson
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...
Baettig-Palma, Ricardo; Cornejo-Troncoso, Jorge; Salas-Maureira, Marina; Tapia-Sanhueza, Jaime
Se realizó un análisis comparativo de la precisión de los resultados en la determinación de la retención de óxidos de cobre, cromo y arsénico en madera impregnada con arseniato de cobre cromatado entre fluorescencia de rayos X y espectrometría de reflectancia difusa de infrarrojos cercanos. Los resultados de la calidad de las predicciones fueron comparados entre sí y con valores de retención obtenidos experimentalmente por método gravimétrico, absorción atómica y por cenizas resultantes de su...
Baettig-Palma,Ricardo; Cornejo-Troncoso,Jorge; Salas-Maureira,Marina; Tapia-Sanhueza,Jaime
Se realizó un análisis comparativo de la precisión de los resultados en la determinación de la retención de óxidos de cobre, cromo y arsénico en madera impregnada con arseniato de cobre cromatado entre fluorescencia de rayos X y espectrometría de reflectancia difusa de infrarrojos cercanos. Los resultados de la calidad de las predicciones fueron comparados entre sí y con valores de retención obtenidos experimentalmente por método gravimétrico, absorción atómica y por cenizas resultantes de su...
Carvajal Serna, Luis Fernando
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...
Zaretzki, J.; Bergeron, C.; Huang, T.-W.
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....
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
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.
Rafael Rodríguez Ramírez
Full Text Available Se realizó un estudio descriptivo, longitudinal y retrospectivo de 34 pacientes con peritonitis difusa secundaria, extendida a los 4 cuadrantes de la cavidad peritoneal, intervenidos quirúrgicamente en el Hospital General de Luanda durante el período comprendido desde agosto del 2008 hasta julio del 2009. Las afecciones causales más frecuentes fueron las perforaciones tíficas (en las cuales se utilizó la enterorrafia y la apendicitis aguda, en tanto la complicación posoperatoria más común resultó ser la dehiscencia de sutura. En la casuística, 6 de sus integrantes experimentaron reintervenciones y 5 fallecieron. La perforación intestinal es una complicación grave de la fiebre tifoidea, cuya frecuencia se incrementa en áreas endémicas y puede ser la primera causa de peritonitis generalizada o difusa aguda.A descriptive, longitudinal and retrospective study of 34 patients with secondary diffuse peritonitis, extended to the 4 quadrants of the peritoneal cavity, surgically treated in the General Hospital of Luanda was carried out from August, 2008 to July, 2009. The most frequent causal affections were the typhic perforations (in which enterorrhaphy was used and the acute appendicitis, the most common postoperative complication turned out to be the suture dehiscence. In the case material, 6 of its members experienced reinterventions and 5 died. The intestinal perforation is a serious complication of the typhoid fever whose frequency is increased in endemic areas and it can be the first cause of acute diffuse or sistemic peritonitis.
Jorm Anthony F
Full Text Available Abstract Background To investigate and compare the predictors of personal and perceived stigma associated with depression. Method Three samples were surveyed to investigate the predictors: a national sample of 1,001 Australian adults; a local community sample of 5,572 residents of the Australian Capital Territory and Queanbeyan aged 18 to 50 years; and a psychologically distressed subset (n = 487 of the latter sample. Personal and Perceived Stigma were measured using the two subscales of the Depression Stigma Scale. Potential predictors included demographic variables (age, gender, education, country of birth, remoteness of residence, psychological distress, awareness of Australia's national depression initiative beyondblue, depression literacy and level of exposure to depression. Not all predictors were used for all samples. Results Personal stigma was consistently higher among men, those with less education and those born overseas. It was also associated with greater current psychological distress, lower prior contact with depression, not having heard of a national awareness raising initiative, and lower depression literacy. These findings differed from those for perceived stigma except for psychological distress which was associated with both higher personal and higher perceived stigma. Remoteness of residence was not associated with either type of stigma. Conclusion The findings highlight the importance of treating the concepts of personal and perceived stigma separately in designing measures of stigma, in interpreting the pattern of findings in studies of the predictors of stigma, and in designing, interpreting the impact of and disseminating interventions for stigma.
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.
Glaydson Teixeira Oliveira
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.
Pasman, W.J.; Saris, W.H.M.; Westerterp-Plantenga, M.S.
Objective: To obtain predictors of weight maintenance after a weight-loss intervention. Research Methods and Procedures: An overall analysis of data from two-long intervention studies [n = 67 women; age: 37.9±1.0 years; body weight (BW): 87.0±1.2 kg; body mass index: 32.1±0.5 kg·m-2; % body fat:
Rafael A. Espín Andrade
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.
Ricardo Neves de Souza Lima
Full Text Available RESUMO Este estudo avaliou o potencial poluidor da bacia de contribuição do reservatório de Funil (BCRF, localizado na bacia hidrográfica do rio Paraíba do Sul, considerando a geração da carga de nutrientes, nitrogênio (N e fósforo (P, por fontes pontuais e difusas, a partir de uma modelagem distribuída utilizando Sistema de Informação Geográfica (SIG. As cargas e concentrações médias anuais desses nutrientes foram geradas a partir do acoplamento de equações empíricas, em SIG, considerando informações espaciais de uso e cobertura do solo, população residente na bacia e vazão média anual de longo período, obtida por equações do tipo chuva vazão. Os resultados indicaram que 80% da carga total de nitrogênio foram provenientes de fontes pontuais e 20% de fontes difusas, enquanto que, da carga total de fósforo, 89,1% foram originadas de fontes pontuais e 10,9% de fontes difusas. As concentrações de nutrientes estimadas pelo modelo empírico apresentaram bons ajustes em relação aos valores observados de fósforo e de nitrogênio no rio Paraíba do Sul, com R²=0,96 (p<0,01 e R²=0,70 (p<0,01, respectivamente. Dessa forma, o modelo foi capaz de detectar, de forma significativa, a tendência das variações nas concentrações de nutrientes ao longo de diferentes trechos da BCRF.
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
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.
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.
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
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.
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
Biolcati, Roberta; Mancini, Giacomo; Pupi, Virginia; Mugheddu, Valeria
Worldwide, Facebook is becoming increasingly widespread as a communication platform. Young people especially use this social networking site daily to maintain and establish relationships. Despite the Facebook expansion in the last few years and the widespread acceptance of this social network, research into Facebook Addiction (FA) is still in its infancy. Hence, the potential predictors of Facebook overuse represent an important matter for investigation. This study aimed to deepen the understanding of the relationship between personality traits, social and emotional loneliness, life satisfaction, and Facebook addiction. A total of 755 participants (80.3% female; n = 606) aged between 18 and 40 (mean = 25.17; SD = 4.18) completed the questionnaire packet including the Bergen Facebook Addiction Scale, the Big Five, the short version of Social and Emotional Loneliness Scale for Adults, and the Satisfaction with Life Scale. A regression analysis was used with personality traits, social, family, romantic loneliness, and life satisfaction as independent variables to explain variance in Facebook addiction. The findings showed that Conscientiousness, Extraversion, Neuroticism, and Loneliness (Social, Family, and Romantic) were strong significant predictors of FA. Age, Openness, Agreeableness, and Life Satisfaction, although FA-related variables, were not significant in predicting Facebook overuse. The risk profile of this peculiar behavioral addiction is also discussed.
Katon, Wayne; Russo, Joan; Gavin, Amelia
To examine sociodemographic factors, pregnancy-associated psychosocial stress and depression, health risk behaviors, prepregnancy medical and psychiatric illness, pregnancy-related illnesses, and birth outcomes as risk factors for post-partum depression (PPD). A prospective cohort study screened women at 4 and 8 months of pregnancy and used hierarchical logistic regression analyses to examine predictors of PPD. The study sample include 1,423 pregnant women at a university-based high risk obstetrics clinic. A score of ≥10 on the Patient Health Questionnaire-9 (PHQ-9) indicated clinically significant depressive symptoms. Compared with women without significant postpartum depressive symptoms, women with PPD were significantly younger (pdepressive symptoms (pdepression case finding for pregnant women.
Erick González Caballero
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.
Full Text Available RESUMO: Neste artigo foram discutidos os principais aspectos tomogrÃ¡ficos das neoplasias pulmonares difusas que acometem o paciente com a sÃndrome da imunodeficiÃªncia adquirida. Com este objetivo foram revistas as tomografias computorizadas de alta resoluÃ§Ã£o de 8 pacientes, 4 deles com linfomas do tipo nÃ£o-Hodgkin e 4 com sarcoma de Kaposi, e feita correlaÃ§Ã£o com os achados anatomo-patolÃ³gicos. O principal aspecto observado foi a disseminaÃ§Ã£o linfÃ¡tica, determinando espessamen-to das bainhas broncovasculares, dos septos interlobulares e da superfÃcie pleural. Em ambas as doenÃ§as tal aspecto deveu-se Ã infiltraÃ§Ã£o destes compartimentos pelas cÃ©lulas neoplÃ¡sicas. Outros aspectos observados foram os nÃ³dulos de limites mal definidos no sarcoma de Kaposi, e mÃºltiplos nÃ³dulos com broncograma aÃ©reo, e consolidaÃ§Ã£o parenquimatosa, nos linfomas. Derrames pleurais foram detectados em ambas as doenÃ§as.REV PORT PNEUMOL 2002; VIII (2: ABSTRACT: In this article we discuss the main computed tomographic aspects of diffuse pulmonary neoplasias in AIDS patients. For this purpose we reviewed the High Resolution CT of eight patients, four of them with Non-Hodgkin Lymphoma, and four with Kaposiâs sarcoma, and correlated with anatomopathologic findings. The main finding was lymphatic spread which produces peribronchovascular, septal interlobular and pleural thickening. In both diseases this aspects were caused by neoplastic cells infiltration of these compartments. Other findings includes ill defined nodules in Kaposiâs sarcoma and multiple nodules with air-bronchograms and parenchymal consolidations in lymphomas. Pleural effusions were seen in both diseases.REV PORT PNEUMOL 2002; VIII (2: Palavras-chave: SIDA, pulmÃµes, TCAR, anatomopatologia, sarcoma de Kaposi, linfomas, Key-words: AIDS, lungs, HRCT, anatomopathology, Kaposiâs sarcoma, lymphoma
Roberto F. FarfÃ¡n
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: LÃ³gica Difusa, FLC, Boost, Fotovoltaico., Keywords: Fuzzy Logic, FLC, Boost, Photovoltaic.
Bahamaca Fernandez, Luis Jonathan
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
Intra-stent tissue evaluation within bare metal and drug-eluting stents > 3 years since implantation in patients with mild to moderate neointimal proliferation using optical coherence tomography and virtual histology intravascular ultrasound.
Kitabata, Hironori; Loh, Joshua P; Pendyala, Lakshmana K; Omar, Alfazir; Ota, Hideaki; Minha, Sa'ar; Magalhaes, Marco A; Torguson, Rebecca; Chen, Fang; Satler, Lowell F; Pichard, Augusto D; Waksman, Ron
We aimed to compare neointimal tissue characteristics between bare-metal stents (BMS) and drug-eluting stents (DES) at long-term follow-up using optical coherence tomography (OCT) and virtual histology intravascular ultrasound (VH-IVUS). Neoatherosclerosis in neointima has been reported in BMS and in DES. Thirty patients with 36 stented lesions [BMS (n=17) or DES (n=19)] >3years after implantation were prospectively enrolled. OCT and VH-IVUS were performed and analyzed independently. Stents with ≥70% diameter stenosis were excluded. The median duration from implantation was 126.0months in the BMS group and 60.0months in the DES group (p 3years to stents had evidence of intimal disruption. The percentage volume of necrotic core (16.1% [9.7, 20.3] vs. 9.7% [7.0, 16.5], p=0.062) and dense calcium (9.5% [3.8, 13.6] vs. 2.7% [0.4, 4.9], p=0.080) in neointima tended to be greater in BMS-treated lesions. Intra-stent VH-TCFA (BMS vs. DES 45.5% vs. 18.2%, p=0.361) did not differ significantly. At long-term follow-up beyond 3 years after implantation, the intra-stent neointimal tissue characteristics appeared similar for both BMS and DES. Copyright © 2014 Elsevier Inc. All rights reserved.
Krause, N; Lynch, J; Kaplan, G A; Cohen, R D; Goldberg, D E; Salonen, J T
Disability retirement may increase as the work force ages, but there is little information on factors associated with retirement because of disability. This is the first prospective population-based study of predictors of disability retirement including information on workplace, socioeconomic, behavioral, and health-related factors. The subjects were 1038 Finnish men who were enrolled in the Kuopio Ischemic Heart Disease Risk Factor Study, who were 42, 48, 54, or 60 years of age at the beginning of the study, and who participated in a 4-year follow-up medical examination. Various job characteristics predicted disability retirement. Heavy work, work in uncomfortable positions, long workhours, noise at work, physical job strain, musculoskeletal strain, repetitive or continuous muscle strain, mental job strain, and job dissatisfaction were all significantly associated with the incidence of disability retirement. The ability to communicate with fellow workers and social support from supervisors tended to reduce the risk of disability retirement. The relationships persisted after control for socioeconomic factors, prevalent disease, and health behavior, which were also associated with disability retirement. The strong associations found between workplace factors and the incidence of disability retirement link the problem of disability retirement to the problem of poor work conditions.
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
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
Fernanda P. Medeiros
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.
George E. Dzyacky
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
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
Lucimar M.F. de Carvalho
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.
Chor, Ka Ho Brian; Wisdom, Jennifer P.; Olin, Su-Chin Serene; Hoagwood, Kimberly E.; Horwitz, Sarah M.
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
Filippo Passerini; Samuel E. Vazquez
We study the problem of optimal trading using general alpha predictors with linear costs and temporary impact. We do this within the framework of stochastic optimization with finite horizon using both limit and market orders. Consistently with other studies, we find that the presence of linear costs induces a no-trading zone when using market orders, and a corresponding market-making zone when using limit orders. We show that, when combining both market and limit orders, the problem is furthe...
Adilson P. de Souza
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
Press, Danielle; Akyuz, Muhammet; Dural, Cem; Aliyev, Shamil; Monteiro, Rosebel; Mino, Jeff; Mitchell, Jamie; Hamrahian, Amir; Siperstein, Allan; Berber, Eren
The recurrence rate of pheochromocytoma after adrenalectomy is 6.5-16.5%. This study aims to identify predictors of recurrence and optimal biochemical testing and imaging for detecting the recurrence of pheochromocytoma. In this retrospective study we reviewed all patients who underwent adrenalectomy for pheochromocytoma during a 14-year period at a single institution. One hundred thirty-five patients had adrenalectomy for pheochromocytoma. Eight patients (6%) developed recurrent disease. The median time from initial operation to diagnosis of recurrence was 35 months. On multivariate analysis, tumor size >5 cm was an independent predictor of recurrence. One patient with recurrence died, 4 had stable disease, 2 had progression of disease, and 1 was cured. Recurrence was diagnosed by increases in plasma and/or urinary metanephrines and positive imaging in 6 patients (75%), and by positive imaging and normal biochemical levels in 2 patients (25%). Patients with large tumors (>5 cm) should be followed vigilantly for recurrence. Because 25% of patients with recurrence had normal biochemical levels, we recommend routine imaging and testing of plasma or urinary metanephrines for prompt diagnosis of recurrence. Copyright © 2014 Elsevier Inc. All rights reserved.
Lucio Flores Payán
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.
John Alexander Segura Bolívar
Full Text Available El pronóstico de niveles diarios de ríos en Colombia se reporta oficialmente en términos lingüísticos. Este hecho inspiró un modelo basado en la teoría de conjuntos difusos, concepto proveniente de la inteligencia artificial. Un Sistema de Lógica Difusa (SLD permite analizar observaciones en el tiempo clasificándolas en categorías lingüísticas, aproximadas a la calificación empleada o a la manera en que una persona describiría el fenómeno. Usando juicios de expertos se estima el nivel del día siguiente. Para la calibración del modelo se implementó un algoritmo de optimización global denominado Símplex Descendente Multidimensional (SDM. / Forecasting of diary stages of rivers in Colombia is reported officially in linguistic terms. This fact inspired a model based on theory of fuzzy sets, concept coming from artificial intelligence. A Fuzzy Logic System (FLS allows to analyze observations in time classifying them in linguistic categories which are approximated either to the employed qualification, or to the way in that a person would describe the phenomenon. Taking into account experts' judgements the level of the following day is estimated. An algorithm of global optimization named Multidimensional Downhill Simplex was implemented in order to calibrate model parameters.
Ferguson, Kristin M.; Bender, Kimberly; Thompson, Sanna J.
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…
Aleman Fernandez, Ailema Amelia; Dorantes Sanchez, Margarita
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
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 ...
Wang, Wilson; Kanneg, Derek
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
D'Ascenzo, Fabrizio; Bollati, Mario; Clementi, Fabrizio
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...
Malik, M.A.; Ahmed, T.M.
To determine the prognosis of seizures in epileptic children and identify early predictors of intractable childhood epilepsy. All children (aged 1 month to 16 years) with idiopathic or cryptogenic epilepsy who were treated and followed at the centre during the study period were included. The patients who had marked seizures even after two years of adequate treatment were labeled as intractable epileptics (cases). Children who had no seizure for more than one year at last follow-up visit were the controls. Adequate treatment was described as using at least three anti-epileptic agents either alone or in combination with proper compliance and dosage. Records of these patients were reviewed to identify the variables that may be associated with seizure intractability. Of 442 epileptic children, 325 (74%) intractable and 117 (26%) control epileptics were included in the study. Male gender (OR=3.92), seizures onset in infancy >10 seizures before starting treatment (OR=3.76), myoclonic seizures (OR=1.37), neonatal seizures (OR=3.69), abnormal EEG (OR=7.28) and cryptogenic epilepsy (OR=9.69) and head trauma (OR=4.07) were the factors associated with intractable epilepsy. Seizure onset between 5-7 years of age, idiopathic epilepsy, and absence seizures were associated with favourable prognosis in childhood epilepsy. Intractable childhood epilepsy is expected if certain risk factors such as type, age of onset, gender and cause of epilepsy are found. Early referral of such patients to the specialized centres is recommended for prompt and optimal management. (author)
Tung, Esther S; Flessner, Christopher A; Grant, Jon E; Keuthen, Nancy J
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.
Echevarria, Ilia M; Patterson, Barbara J; Krouse, Anne
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 transformational 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.
Sher, Gene; Zhi, Degui; Zhang, Shaojie
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.
Jorge A. Herrera-Cuartas
Full Text Available In this paper an analysis about the modified Smith predictor, is presented. The modified Smith predictor is a scheme used to control stable, unstable and integrative systems. The closed loop equation is developed and analyzed. Additionally, various test are made to verify the behavior of the control scheme. Specify, three test are made. First, it is verify the behavior of the scheme to deal with an uncertainty in the delay model. Second, it is verify the behavior in the face of uncertainties in the parameter of the rational model.
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
Sebastião Nataniel Silva Gusmão
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
Diffuse Scattering from Alloys and Disordered Systems: Experimental Techniques and Potentialities; Diffusion dans les Alliages et les Systemes Desordonnes; Methodes Experimentales et Possibilites d'Application; Diffuznoe rasseyanie na splavakh i razuporyadochennykh sistemakh. ehksperimental'nye metody i potentsial'nye vozmozhnosti; Dispersion Difusa en Aleaciones y Sistemas Desordenados; Tecnicas Experimentales y Posibilidades
Low, G. G. [Atomic Energy Research Establishment, Harwell, Berks (United Kingdom)
magnetique. On parvient a l'eviter en utilisant un echantillon monocristal ou en employant des neutrons ayant une longueur d'onde suffisante pour qu'aucun phenomene de Bragg ne puisse se produire. Un appareil fonde sur ce dernier principe a ete mis au point a Harwell et utilise pour une gamme etendue de mesures portant sur des alliages ferromagnetiques dilues. L'auteur discute ces travaux ainsi que plusieurs autres qui pourraient etre entrepris dans ce domaine. Parmi ces derniers figurent des mesures de la diffusion magnetique par les sels paramagnetiques. L'observation de cette diffusion revet un grand interet car elle fournit des renseignements directs sur la fraction de spin transferee, par suite de la covalence, d'un ion magnetique aux coordinats qui l'entourent. (author) [Spanish] La finalidad de la memoria es analizar, desde el punto de vista de la teoria y de la practica, las informaciones que pueden obtenerse estudiando la dispersion elastica difusa de neutrones. Se presta particular atencion a los sistemas con distribucion aleatoria de defectos, cada uno de los cuales puede considerarse aislado de los demas, bien por efecto de la dilucion o bien por ser intrinsecamente independiente del medio. En estas condiciones, la intensidad dispersa es proporcional al cuadrado del modulo de una transformada de Fourier respecto de la perturbacion de la amplitud de dispersion asociada al defecto. De este modo pueden obtenerse datos sobre la distribucion espacial de la amplitud de dispersion por defectos realizando las mediciones pertinentes por dispersion neutronica y efectuando una inversion de Fourier. En la practica, dada la gran cantidad de procesos que contribuyen a la actividad de fondo debida a la dispersion difusa, solo se han podido realizar determinados tipos de mediciones. En particular, se han logrado progresos considerables en lo que respecta a los defectos magneticos de las sustancias ferromagneticas en las que la seccion eficaz magnetica puede controlarse cambiando
Fernando Mendes Sant'Anna
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
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
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.
Siegler, Robert S.; Duncan, Greg J.; Davis-Kean, Pamela E.; Duckworth, Kathryn; Claessens, Amy; Engel, Mimi; Susperreguy, Maria Ines; Meichu, Chen
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…
Jordan, Nancy C.; Hansen, Nicole; Fuchs, Lynn S.; Siegler, Robert S.; Gersten, Russell; Micklos, Deborah
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…
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
Scholten, W.D.; Batelaan, N.M.; van Balkom, A.J.L.M.; Penninx, B.W.J.H.; Smit, J.H.; van Oppen, P.
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
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...
van Bilsen, Lily A.; Savitri, Ary I.; Amelia, Dwirani; Baharuddin, Mohammad; Grobbee, Diederick E.; Uiterwaal, Cuno S P M
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
Buckingham, Robert S.
Optometry school admissions are very competitive. With more applicants than available slots, admission committees must choose those students whom they feel will be successful graduates. Previous studies in the health profession schools have demonstrated that the predictors of academic achievement are preadmission science grade point average (GPA),…
Barry, Melissa; Reschly, Amy L.
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%…
Basow, Susan A.; Johnson, Kelly
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…
Yazedjian, Ani; Toews, Michelle L.
The purpose of this study is to assess personal and interpersonal predictors of college adjustment among a sample of 190 first-year Hispanic students. Specifically, we examined the extent to which personal factors such as self-esteem, acculturation, and ethnic identity and interpersonal factors such as parental education and parental attachment…
Lavretsky, Eugene; Gadient, Ross; Gregory, Irene M.
This paper is devoted to the design and analysis of a predictor-based model reference adaptive control. Stable adaptive laws are derived using Lyapunov framework. The proposed architecture is compared with the now classical model reference adaptive control. A simulation example is presented in which numerical evidence indicates that the proposed controller yields improved transient characteristics.
Bevelander, K.E.; Kaipainen, K.; Swain, R.; Dohle, S.; Bongard, J.C.; Hines, P.D.H.; Wansink, B.
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
Burk, Ruth S; Grap, Mary Jo; Munro, Cindy L; Schubert, Christine M; Sessler, Curtis N
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.
Seibt, Reingard; Spitzer, Silvia; Druschke, Diana; Scheuch, Klaus; Hinz, Andreas
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.
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.
Handelman, Stanley; And Others
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)
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.
Isabella Lima Arrais RIBEIRO; Johnys Berton Medeiros da NÓBREGA; Ana Maria Gondim VALENÇA; Ricardo Dias de CASTRO
Abstract Introduction The incidence of lip, oral cavity and oropharynx cancer in Brazil is one of the highest worldwide. Objective This study aimed to identify predictors for oral cancer in Brazil between 2010 and 2013. Method Through a time series study in which 14,959 primary head and neck cancer diagnoses were evaluated. The variables of interest were gender, age, race, education level, family history of cancer, alcohol consumption, smoking, and previous cancer diagnosis. The outcome va...
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...
Bean, Anthony Martin; Ferro, Lauren
This study was designed to investigate the aggression levels of college students found in the Northeastern part of the United States following exposure to video games. The 59 participants played their assigned game, Mortal Kombat on Nintendo Wii or Halo 2 on the Xbox, for 45 minutes with a partner. The researchers employed twelve t-tests (alpha adjusted to .004) and three multiple linear regressions to explore the difference of aggression levels in gender, violent video game, and predictors o...
Bevelander, Kirsten E; Kaipainen, Kirsikka; Swain, Robert; Dohle, Simone; Bongard, Josh C; Hines, Paul D H; Wansink, Brian
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.
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.
Arutyunyan, Sergey; Alfonso, Sarah V; Hernandez, Nilda; Favreau, Tracy; Fernández, M Isabel
The incidence of skin cancer, the most common type of cancer in the United States, is increasing. Sunburn is a major modifiable risk factor for skin cancer, and its prevalence among the US population is high. To identify predictors of having had a red or painful sunburn in the past 12 months among people living in Florida. Florida residents were recruited from public places and online. They were asked to complete an anonymous cross-sectional survey that assessed demographic information, dermatologic history, as well as knowledge, attitude, and behavior factors associated with sunburn. A total of 437 participants whose data were complete for all variables were included in the multivariate analysis. In multivariate logistic regression, younger age (18-29 years) was the most significant predictor of sunburn (OR, 15.26; 95% CI, 5.97-38.98; PSunburn prevention programs that osteopathic physicians can readily implement in clinical practice are urgently needed, particularly for young adult patients. This study identified 7 predictors of sunburn in Florida residents. With additional research findings, promoting attitude change toward sun protection may be a viable strategy.
de Troya-Martín, Magdalena; de Gálvez-Aranda, María Victoria; Rivas-Ruiz, Francisco; Blázquez-Sánchez, Nuria; Fernández-Morano, Maria Teresa; Padilla-España, Laura; Herrera-Ceballos, Enrique
Painful sunburns at any age are one of the main risk factors for skin cancer. To determine the prevalence and predictors of sunburn among beachgoers. A cross-sectional health survey was conducted at the beach during the summer. Adults >18 years with an understanding of Spanish were interviewed using a questionnaire about behaviours, attitudes and knowledge related to sun exposure at the beach. A descriptive analysis was performed, and a log-binomial regression model was used to determine predictors of sunburn. The survey was completed by 1054 beachgoers, with a mean age of 43.8 (SD: 18.7) years, 61.2% women, skin phototypes i (13.6%), ii (22.3%), iii (34.0%) and iv (30.2%). 46.9% of responders reported at least one painful sunburn during the previous summer. Age, sex, education, skin phototype, midday sun exposure, sun protection habits, attitudes towards tanning and knowledge about skin cancer were identified as independent predictors of sunburn. It is necessary to develop photoprotection campaigns aimed at beachgoers, particularly in young people, men, those with skin phototypes I-III and secondary or university education. Educational strategies should be aimed at discouraging sun exposure at midday, changing attitudes towards tanning and improving knowledge about skin cancer. © 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
Purkey, Matthew R; Seeskin, Zachary; Chandra, Rakesh
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.
Daniel Alfonso Robaina
Full Text Available
En el presente trabajo se utilizan métodos de análisis cuantitativos, aplicados a criterios con incertidumbre en la toma de decisiones, lo cual permite que se involucren trabajadores, expertos y equipos de trabajo, en la estrategia general de la organización. La Empresa Constructora y Reparadora de la Industria del Níquel ECRIN, pertenece al sector de la Construcción en la región de Moa, el que despunta hacia nuevos retos; el desarrollo de dos fábricas productoras de níquel, constituye un atractivo para capital nacional y extranjero, donde la competitividad se traduce en satisfacción de expectativas de clientes internos, externos y proveedores.
This paper shows the quantitative analysis methods, these are applied to make decision task in which are involved uncertainty criteria, these method allows the participation of workers, experts and team work, at the general strategy design of organization. The Construction and Repairing Enterprise of Nickel Industry ECRIN, belongs to building sector at MOA region, which open out to a new challenges; the development of two productive factories of nickel raw became in an interesting attractive sector for a national investment and abroad, where competitiveness turn into the expectation satisfaction of internal and external customers and suppliers.
Ortega Martínez, José
En el estudio de nuestros 20 casos hemos seguido una sistemática de trabajo que abarca dos vertientes. Una constituye la parte general, que tiende a establecer un diagnóstico objetivo, para no partir de hechos falsos, y otra constituye la parte especial, es decir el motivo fundamental del estudio de esta Tesis. Ambas partes van íntimamente correlacionadas, pues si partimos de diagnósticos falsos, el estudio especial dirigido, sacaría conclusiones falsas....
Opacidades em vidro fosco nas doenças pulmonares difusas: correlação da tomografia computadorizada de alta resolução com a anatomopatologia Ground-glass opacity in diffuse lung diseases: high-resolution computed tomography-pathology correlation
Maria Lúcia de Oliveira Santos
Full Text Available Opacidade em vidro fosco é achado freqüentemente visto na tomografia computadorizada de alta resolução do tórax e se traduz pelo aumento do coeficiente de atenuação dos pulmões, mas sem apagar as marcas broncovasculares. Por sua inespecificidade, a associação com outros achados radiológicos, clínicos e anatomopatológicos deve ser considerada para uma interpretação diagnóstica mais correta. Neste trabalho foram analisados 62 exames tomográficos de pacientes com doenças pulmonares difusas, de 14 etiologias diferentes, em que opacidades em vidro fosco foram o achado único ou predominante, e feita correlação anatomopatológica por meio de biópsias ou necropsias. Na pneumocistose as opacidades em vidro fosco corresponderam, histologicamente, à ocupação alveolar por material espumoso contendo parasitos; no carcinoma bronquíolo-alveolar, a espessamento dos septos alveolares e ocupação de sua luz por muco e células tumorais; na paracoccidioidomicose, a espessamento dos septos alveolares, áreas de fibrose e alvéolos contendo exsudato broncopneumônico; na sarcoidose, a fibrose ou a acúmulo de granulomas; na fibrose pulmonar idiopática, a espessamento dos septos alveolares por fibrose; na bronquiolite obliterante com pneumonia em organização, a pneumonia intersticial com áreas de organização intra-alveolar. A ocupação alveolar por sangue foi observada nos casos de leptospirose, hemossiderose idiopática, metástases de tumor renal e na aspergilose invasiva; por vacúolos de gordura na pneumonia lipídica; por material protéico e lipoprotéico na silicoproteinose e na proteinose alveolar; e por líquido de edema na insuficiência cardíaca congestiva.Ground-glass opacity is a finding frequently seen in high-resolution computed tomography examinations of the chest and is characterized by hazy increased attenuation of lung, however without blurring of bronchial and vascular margins. Due to its unspecificity
Asociación del virus herpes humano 8 y la hiperplasia linfoide nodular difusa del intestino delgado en la inmunodeficiencia variable común Association between the human herpesvirus 8 and the diffuse nodular lymphoid hyperplasia of the small intestine in common variable immunodeficiency
Full Text Available La inmunodeficiencia variable común (IDVC es la inmunodeficiencia primaria más frecuente en el terreno clínico y sus formas de presentación son muy variables. Se describe una paciente con IDVC de adulto con síndrome diarreico crónico, pérdida de peso y linfoadenopatías difusas. Sus características inmunológicas más notables fueron una profunda hipogammaglobulinemia de las 3 clases mayores de inmunoglobulinas y la disminución numérica de las células B (CD19+ y células NK (CD3-CD56+ en sangre periférica. La biopsia del intestino delgado obtenida por panendoscopia asistida por video, reveló hiperplasia linfoide multinodular con atrofia parcial de las vellosidades. La inmunohistoquímica mostró que los nódulos consistían en centros germinales aumentados de tamaño con una distribución de células B (CD20+ y células T (CD3+, similar a la del folículo normal. No se encontró expresión diferencial de cadenas ligeras κ y λ. El método de la reacción en cadena de la polimerasa en tiempo real (QRT-PCR detectó un número apreciable de copias del genoma del virus del herpes humano tipo 8 (VHH-8 (133 copias/µL de ADN en el ADN del nódulo intestinal biopsiado. La infección con el VHH-8 puede ser un factor importante en la patogenia de los trastornos linfoproliferativos en pacientes con IDVC.The common variable immunodeficiency (CVID is the more frequent primary immunodeficiency in clinical field and its presentation forms are very variable. We describe the case of a women presenting with adult CVID with chronic diarrhea syndrome, weight loss and diffuse lymphadenopathies, where the more marked immunologic features were a deep hypogammaglobulinemia of the three major kinds of immunoglobulins and numerical decrease of B cells (CD19+ and NK cells (CD3-CD56+ in peripheral blood. Biopsy of small intestine obtained by video-assisted panendoscope, showed the presence of a multinodular lymphoid hyperplasia with partial atrophy of
Yarcheski, Adela; Mahon, Noreen E
The purposes of this study were to identify predictors of hope in the literature reviewed, to use meta-analysis to determine the mean effect size (ES) across studies between each predictor and hope, and to examine four moderators on each predictor-hope relationship. Using preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines for the literature reviewed, 77 published studies or doctoral dissertations completed between 1990 and 2012 met the inclusion criteria. Eleven predictors of hope were identified and each predictor in relation to hope was subjected to meta-analysis. Five predictors (positive affect, life satisfaction, optimism, self-esteem, and social support) of hope had large mean ESs, 1 predictor (depression) had a medium ES, 4 predictors (negative affect, stress, academic achievement, and violence) had small ESs, and 1 predictor (gender) had a trivial ES. Findings are interpreted for the 11 predictors in relation to hope. Limitations and conclusions are addressed; future studies are recommended. © The Author(s) 2014.
Shakya, Holly B; Christakis, Nicholas A; Fowler, James H
Poor sanitation, including the lack of clean functioning toilets, is a major factor contributing to morbidity and mortality from infectious diseases in the developing world. We examine correlates of latrine ownership in rural India with a focus on social network predictors. Participants from 75 villages provided the names of their social contacts as well as their own relevant demographic and household characteristics. Using these measures, we test whether the latrine ownership of an individual's social contacts is a significant predictor of individual latrine ownership. We also investigate whether network centrality significantly predicts latrine ownership, and if so, whether it moderates the relationship between the latrine ownership of the individual and that of her social contacts. Our results show that, controlling for the standard predictors of latrine ownership such as caste, education, and income, individuals are more likely to own latrines if their social contacts own latrines. Interaction models suggest that this relationship is stronger among those of the same caste, the same education, and those with stronger social ties. We also find that more central individuals are more likely to own latrines, but the correlation in latrine ownership between social contacts is strongest among individuals on the periphery of the network. Although more data is needed to determine how much the clustering of latrine ownership may be caused by social influence, the results here suggest that interventions designed to promote latrine ownership should consider focusing on those at the periphery of the network. The reason is that they are 1) less likely to own latrines and 2) more likely to exhibit the same behavior as their social contacts, possibly as a result of the spread of latrine adoption from one person to another. Copyright © 2014 Elsevier Ltd. All rights reserved.
Full Text Available Background Understanding risk factors that increase readmission rates may help enhance patient education and set system-wide expectations. We aimed to provide benchmark data on causes and predictors of readmission following inpatient plastic surgery. Methods The 2011 National Surgical Quality Improvement Program dataset was reviewed for patients with both "Plastics" as their recorded surgical specialty and inpatient status. Readmission was tracked through the "Unplanned Readmission" variable. Patient characteristics and outcomes were compared using chi-squared analysis and Student's t-tests for categorical and continuous variables, respectively. Multivariate regression analysis was used for identifying predictors of readmission. Results A total of 3,671 inpatient plastic surgery patients were included. The unplanned readmission rate was 7.11%. Multivariate regression analysis revealed a history of chronic obstructive pulmonary disease (COPD (odds ratio [OR], 2.01; confidence interval [CI], 1.12-3.60; P=0.020, previous percutaneous coronary intervention (PCI (OR, 2.69; CI, 1.21-5.97; P=0.015, hypertension requiring medication (OR, 1.65; CI, 1.22-2.24; P<0.001, bleeding disorders (OR, 1.70; CI, 1.01-2.87; P=0.046, American Society of Anesthesiologists (ASA class 3 or 4 (OR, 1.57; CI, 1.15-2.15; P=0.004, and obesity (body mass index ≥30 (OR, 1.43; CI, 1.09-1.88, P=0.011 to be significant predictors of readmission. Conclusions Inpatient plastic surgery has an associated 7.11% unplanned readmission rate. History of COPD, previous PCI, hypertension, ASA class 3 or 4, bleeding disorders, and obesity all proved to be significant risk factors for readmission. These findings will help to benchmark inpatient readmission rates and manage patient and hospital system expectations.
Munkholm, Anja; Olsen, Else Marie; Rask, Charlotte Ulrikka
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...... interval [CI] = 1.13–6.77; p = .03), with overweight at age 11–12 years and low annual household income as strong explanatory factors (OR = 4.79; 95% CI = 2.81–8.17; p early child...
DEC 1989 2. REPORT TYPE N/A 3. DATES COVERED - 4. TITLE AND SUBTITLE Medical Student Attitudes Toward Older Patients : Predictors and... MEDICAL CENTER . Title of Thesis: " Medical Student Attitudes Toward Older Patients : Predictors and Cons.equences" Name of Candidate: Victoria...dissertation manuscript entitled: 11 Medical Student Attitudes Toward Older Patients : Predictors and Consequences 11 beyond brief excerpts is with
...) Contains a good faith estimate of the year in which the roads, water and sewer facilities and promised... State law, that period becomes the Federal revocation period and the contract must reflect the... purchaser. (6) Prior to the sale the developer provides in a written statement good faith estimates of the...
Full Text Available Tonic immobility (TI is a possible reaction to danger that is facilitated by intense fear, physical restraint and perceived inability to escape. Other variables that could affect TI, such as the type and characteristics of traumatic events and personal characteristics have been little or no studied. The present study evaluated the power of these variables to predict TI in a sample of 273 college students who had experienced at least one traumatic event. Of the sample, 7.7% and 13.2% responded with TI according to the two stricter definitions adopted. Most of the variables were significantly associated with TI in univariate analyses. However, in a multiple regression analysis, only certain features of the events (occurrence of physical/sexual abuse, number of different types of events experienced and certain reactions to them (perception of how traumatic were the events, severe fear response were significant predictors of TI. Since these predictors explained only 25% of the variance, the influence of other variables -such as neuroticism, negative affectivity and perceived lack of personal control or resources to cope with traumatic events- should be investigated.
Conclusion: Increased CVD risk factors are predictors of future overweight in childhood and adolescent and increased weight is linked significantly with dyslipidemia and hypertension in this age group.
Helton, Jon Craig; Storlie, Curtis B.
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
Downing, D.J.; Fedorov, V.V.; Nanstad, R.K.
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.
Heltberg, Andreas Søndergaard; Andersen, John Sahl; Sandholdt, Håkon
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......), and to investigate how these predict a European Heart SCORE≥5% in a Danish population study. METHODS: We included 21,205 adults from the Danish General Suburban Population Study. We used relative importance calculations of self-reported variables in prediction of undiagnosed T2DM. We externally validated established...... 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...
Shields, David Light; Funk, Christopher D; Bredemeier, Brenda Light
Researchers have made productive use of Bandura's (1991) construct of moral disengagement (MD) to help explain why sport participants deviate from ethical ideals. In this study of intercollegiate athletes from diverse sports (N = 713), we examined MD in relation to other character-related variables: empathy, moral identity, moral attentiveness, and contesting orientations. We also examined whether moral attentiveness conforms to the pattern of "bracketed morality" found in moral reasoning (Shields & Bredemeier, 1995) and moral behavior (Kavussanu, Boardley, Sagar, & Ring, 2013). Results indicated that MD correlated positively with perceptual moral attentiveness and war contesting orientation; MD correlated negatively with empathy, moral identity, reflective moral attentiveness, and partnership contesting orientation. Results of hierarchical regression demonstrated that gender, contesting orientations, moral identity, and one form of moral attentiveness were significant predictors of MD. Finally, sport participants were found to be less morally attentive in sport than in everyday life.
Flensborg-Madsen, Trine; Mortensen, Erik Lykke
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......), and Eysenck personality traits in adulthood. An additional aim was to investigate whether intelligence and education may mediate this association. METHODS: SES of 9125 children in the Copenhagen Perinatal Cohort was recorded at a 1-year examination. A subsample of this cohort, comprising 1182 individuals......, participated in a follow-up at 20-34 years and was administered the Eysenck Personality Questionnaire (EPQ) which includes measures of neuroticism, extraversion, psychoticism and the so-called lie-scale. Associations of SES with each of the four personality traits were analysed by bivariate and partial...
Reddy, Cara Camiolo; Collins, Michael W
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.
MIGUEL ANGEL RODRIGUEZ BORROTO
Full Text Available En el presente artículo se expone un algoritmo para aplicar las técnicas de control predictivo lineal basadas en el modelo (MPC al caso de procesos no lineales utilizando un predictor borroso (fuzzy, en base a la estructura Takagi_Sugeno_Kang_dinámica y bajo el principio de utilización de modelos lineales locales por tramos. Ello conduce inherentemente, a un proceso de adaptación de la matriz dinámica del sistema en cada periodo de muestreo, lo cual se considera novedoso en relación al MPC clásico. Se exponen los resultados de su aplicación al caso de un control de posición que utiliza un servo-motor de corriente continua con zona muerta y a un reactor continuo de tanque con agitador con reacción exotérmica. Los resultados son satisfactorios
Farrath, Samiris; Parreira, José Gustavo; Perlingeiro, Jacqueline A G; Solda, Silvia C; Assef, José Cesar
To identify predictors of abdominal injuries in victims of blunt trauma. retrospective analysis of trauma protocols (collected prospectively) of adult victims of blunt trauma in a period of 15 months. Variables were compared between patients with abdominal injuries (AIS>0) detected by computed tomography or/and laparotomy (group I) and others (AIS=0, group II). Student's t, Fisher and qui-square tests were used for statistical analysis, considering p3) in head (18.5% vs. 7.9%), thorax (29.2% vs. 2.4%) and extremities (40.0% vs. 13.7%). The highest odds ratios for the diagnosis of abdominal injuries were associated flail chest (21.8) and pelvic fractures (21.0). Abdominal injuries were more frequently observed in patients with hemodynamic instability, changes in Glasgow coma scale and severe lesions to the head, chest and extremities.
Toennesen, Louise L; Porsbjerg, Celeste; Pedersen, Lars
INTRODUCTION: Elite athletes frequently experience asthma and airway hyperresponsiveness (AHR). We aimed to investigate predictors of airway pathophysiology in a group of unselected elite summer-sport athletes, training for the summer 2008 Olympic Games, including markers of airway inflammation......, systemic inflammation, and training intensity. METHODS: Fifty-seven Danish elite summer-sport athletes with and without asthma symptoms all gave a blood sample for measurements of high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor alpha (TNF....... In these subjects, no association was found between the levels of AHR to mannitol and methacholine (r = 0.032, P = 0.91). CONCLUSION: AHR in elite athletes is related to the amount of weekly training and the level of serum TNF-α. No association was found between the level of AHR to mannitol and methacholine...
Helton, Jon Craig; Storlie, Curtis B.
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.
Siegler, Robert S; Duncan, Greg J; Davis-Kean, Pamela E; Duckworth, Kathryn; Claessens, Amy; Engel, Mimi; Susperreguy, Maria Ines; Chen, Meichu
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.
Doron, Julie; Stephan, Yannick; Maiano, Christophe; Le Scanff, Christine
The present study focused on the motivational predictors of coping with academic examination through the test of the contribution of self-determination for academic studies and achievement goals. Coping strategies, academic motivation and achievement goals were assessed among 199 undergraduate students. Regression analysis revealed that problem-focused coping is positively predicted by identified regulation and negatively by amotivation, whereas emotion-focused coping is positively predicted by introjected regulation and amotivation. Mastery approach goals contributed positively to problem-focused coping. Identified regulation and mastery approach goals made a unique positive contribution to problem-focused coping, and amotivation was negatively related. Students' coping actions may vary according to both the reasons why they engage in academic studies and the goals they pursue in this setting.
Bianchi, Adriana; Phillips, James G
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.
Yang, Xiaohui; Zhu, Liqi
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.
Kessing, Lars Vedel; Hellmund, Gunnar; Andersen, Per Kragh
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...
Kessel, Ellen M; Allmann, Anna E S; Goldstein, Brandon L; Finsaas, Megan; Dougherty, Lea R; Bufferd, Sara J; Carlson, Gabrielle A; Klein, Daniel N
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.
Houssaini, T.S.; Arrayahani, M.; Rhou, H.; Amar, Y.; Benamar, L.; Ouzeddoun, N.; Bayahia, R.
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)
Schwerin, Michael J.; Corcoran, Kevin J.; LaFleur, Bonnie J.; Fisher, Leslee; Patterson, David; Olrich, Tracy
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)
Satisfaction with training and development opportunities was the best predictor of organisational fit, while satisfaction with career opportunities was the best predictor of organisational sacrifice. The findings add valuable new knowledge that may be used to inform retention strategies for professional staff with scarce skills in ...
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 ...
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...
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 ...
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 ...
Luo, Wen; Azen, Razia
Dominance analysis (DA) is a method used to evaluate the relative importance of predictors that was originally proposed for linear regression models. This article proposes an extension of DA that allows researchers to determine the relative importance of predictors in hierarchical linear models (HLM). Commonly used measures of model adequacy in…
Helweg-Larsen, Karin; Schütt, Nina; Larsen, Helmer Bøving
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....
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.
Fox, Gerardus J.A.; Glas, Cornelis A.W.
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
Predictors of Diabetic Retinopathy in Patients with Type 2 Diabetes Who Have Normoalbuminuria. R Karoli, J Fatima, V Shukla, P Garg, A Ali. Abstract. Background: Microalbuminuria is an independent predictor of retinopathy, so absence of microalbuminuria may tend clinician not to screen for diabetic retinopathy (DR).
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 ...
Markkula, Ritva A; Kalso, Eija A; Kaprio, Jaakko A
Abstract Background Fibromyalgia (FM) is a pain syndrome, the mechanisms and predictors of which are still unclear. We have earlier validated a set of FM-symptom questions for detecting possible FM in an epidemiological survey and thereby identified a cluster with “possible FM”. This study explores prospectively predictors for membership of that FM-symptom cluster. Methods ...
Parsons, Matthew; Tang, William; Feibush, Eliot
Plasma disruptions pose a major threat to the operation of tokamaks which confine a large amount of stored energy. In order to effectively mitigate this damage it is necessary to predict an oncoming disruption with sufficient warning time to take mitigative action. Machine learning approaches to this problem have shown promise but require further developments to address (1) the need for machine-portable predictors and (2) the availability of multi-dimensional signal inputs. Here we demonstrate progress in these two areas by applying the Disruption Predictor Feature Developer to data from JET and NSTX, and discuss topics of focus for ongoing work in support of ITER. The author is also supported under the Fulbright U.S. Student Program as a graduate student in the department of Nuclear, Plasma and Radiological Engineering at the University of Illinois at Urbana-Champaign.
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...
Fu, Guobin; Charles, Stephen P.; Chiew, Francis H. S.; Ekström, Marie; Potter, Nick J.
The nonhomogeneous hidden Markov model (NHMM) statistical downscaling model, 38 catchments in southeast Australia and 19 general circulation models (GCMs) were used in this study to demonstrate statistical downscaling uncertainties caused by equifinality to and transferability. That is to say, there could be multiple sets of predictors that give similar daily rainfall simulation results for both calibration and validation periods, but project different amounts (or even directions of change) of rainfall changing in the future. Results indicated that two sets of predictors (Set 1 with predictors of sea level pressure north-south gradient, u-wind at 700 hPa, v-wind at 700 hPa, and specific humidity at 700 hPa and Set 2 with predictors of sea level pressure north-south gradient, u-wind at 700 hPa, v-wind at 700 hPa, and dewpoint temperature depression at 850 hPa) as inputs to the NHMM produced satisfactory results of seasonal rainfall in comparison with observations. For example, during the model calibration period, the relative errors across the 38 catchments ranged from 0.48 to 1.76% with a mean value of 1.09% for the predictor Set 1, and from 0.22 to 2.24% with a mean value of 1.16% for the predictor Set 2. However, the changes of future rainfall from NHMM projections based on 19 GCMs produced projections with a different sign for these two different sets of predictors: Set 1 predictors project an increase of future rainfall with magnitudes depending on future time periods and emission scenarios, but Set 2 predictors project a decline of future rainfall. Such divergent projections may present a significant challenge for applications of statistical downscaling as well as climate change impact studies, and could potentially imply caveats in many existing studies in the literature.
Wei, Xueyan; Cang, Shuangxin; Hisrich, Robert D
Research on the effects of entrepreneurial stressors is limited, especially regarding its relation to the burnout that frequently occurs in the process of starting and growing a venture. The effect of the role of entrepreneurial stressors (workload, competitive comparison, demands-of-knowledge, managing responsibility, and resource requirements) on burnout (emotional exhaustion, depersonalization, and reduced personal accomplishment) was examined in a Chinese sample of entrepreneurs. Entrepreneurial stressors emerged as a significant predictor of burnout in the process of entrepreneurship in a sample of 289 entrepreneurs (63.8% men; M age = 26.2 yr.; 39.6% of their parents have been self-employed). The findings clarify the functional relationship between entrepreneurial stressors and burnout. Entrepreneurial stressors played multiple roles. Managing responsibility was an active contributor to the sense of achievement and to emotional exhaustion. Workload was an active contributor to emotional exhaustion. Demands-of-knowledge negatively affected three of the dimensions of burnout. Theoretical and practical implications for management of the effect of these relationships are discussed.
Hammer, Alexander; Tregubow, Alexander; Kerry, Ghassan; Schrey, Michael; Hammer, Christian; Steiner, Hans-Herbert
This prospective study was designed to analyze the dependence of different factors on the recurrence rate of chronic subdural hematoma (cSDH) after surgical treatment. Seventy-three consecutive patients, who were surgically treated at our department due to cSDH between 2009 and 2012, were included. The following parameters were analyzed: patient age and gender, occurrence of trauma, time between trauma and admission, neurological symptoms, presence of minor diseases, intake of anticoagulation medication. We classified the results of diagnostic imaging and determined the space-consuming effect via the cerebral midline shift. In addition, we scrutinized intraoperative findings and the dependence of the position of subdural drainage on the recurrence rate of cSDH. In our patient group, cSDH recurrence was significantly associated with aphasia (p=0.008). Moreover an increased cSDH recurrence rate was observed in the patient group that had a separated manifestation of the cSDH in the preoperative diagnostic imaging (p=0.048) and received no drainage implant (p=0.016). Homogeneous isodense cSDH was associated with no apparent recurrence (p=0.037). Within the scope of this study, we detected aphasia and separated cSDH as predictors of cSDH recurrence. Homogeneous isodense cSDH seems to be a good prognostic sign regarding the risk of recurrence development. Furthermore, our data clearly emphasize the importance of surgically applied drainage implants to prevent a recurrence of cSDH.
Lai, Chih-Cheng; Chen, Chin-Ming; Chiang, Shyh-Ren; Liu, Wei-Lun; Weng, Shih-Feng; Sung, Mei-I; Hsing, Shu-Chen; Cheng, Kuo-Chen
The aim of this study was to establish predictors for successfully planned extubation, which can be followed by medical personnel. The patients who were admitted to the adult intensive care unit of a tertiary hospital and met the following criteria between January 2005 and December 2014 were collected retrospectively: intubation > 48 hours; and candidate for extubation. The patient characteristics, including disease severity, rapid shallow breath index (RSBI), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), cuff leak test (CLT) before extubation, and outcome, were recorded. The CLT was classified as 2+ with audible flow without a stethoscope, 1+ with audible flow using a stethoscope, and negative (N) with no audible flow, even with a stethoscope. Failure to extubate was defined as reintubation within 48 hours. In total, 6583 patients were enrolled and 403 patients (6.1%) had extubation failures. Male patients dominated the patient cohort (4261 [64.7%]). The mean age was 64.5±16.3 years. The overall in-hospital mortality rate was 11.3%. The extubation failure rate for females was greater than males (7.7% vs 5.3%, P respiratory capacity, was developed to better predict extubation success.
Waterman, Matti; Knight, Jo; Dinani, Amreen; Xu, Wei; Stempak, Joanne M; Croitoru, Kenneth; Nguyen, Geoffrey C; Cohen, Zane; McLeod, Robin S; Greenberg, Gordon R; Steinhart, A Hillary; Silverberg, Mark S
Approximately 80% of patients with ulcerative colitis (UC) have intermittently active disease and up to 20% will require a colectomy, but little data available on predictors of poor disease course. The aim of this study was to identify clinical and genetic markers that can predict prognosis. Medical records of patients with UC with ≥5 years of follow-up and available DNA and serum were retrospectively assessed. Immunochip was used to genotype loci associated with immune mediated inflammatory disorders (IMIDs), inflammatory bowel diseases, and other single nucleotide polypmorphisms previously associated with disease severity. Serum levels of pANCA, ASCA, CBir1, and OmpC were also evaluated. Requirement for colectomy, medication, and hospitalization were used to group patients into 3 prognostic groups. Six hundred one patients with UC were classified as mild (n = 78), moderate (n = 273), or severe disease (n = 250). Proximal disease location frequencies at diagnosis were 13%, 21%, and 30% for mild, moderate, and severe UC, respectively (P = 0.001). Disease severity was associated with greater proximal extension rates on follow-up (P 40 and proximal disease location were associated with severe UC (odds ratios = 1.94 and 2.12, respectively). None of the single nucleotide polypmorphisms or serum markers tested was associated with severe UC, proximal disease extension or colectomy. Older age and proximal disease location at diagnosis, but not genetic and serum markers, were associated with a more severe course. Further work is required to identify biomarkers that will predict outcomes in UC.
Osetinsky, Brianna; Gaydos, Laura M; Leon, Juan S
This project examines how access issues, ethnicity, and geographic region affect vaccination of children by two years of age in Bolivia. Bolivia's rich variation in culture and geography results in unequal healthcare utilization even for basic interventions such as childhood vaccination. This study utilizes secondary data from the 2008 Demographic and Health Survey for Bolivia to examine predictors of vaccination completion in children by two years of age. Using logistic regression methods, we control for health system variables (difficulty getting to a health center and type of health center as well as demographic and socio-economic covariates). The results indicated that children whose parents reported distance as a problem in obtaining health care were less likely to have completed all vaccinations. Ethnicity was not independently statistically significant, however, in a sub-analysis, people from the Quechua ethnic group were more likely to report 'distance as a problem in obtaining healthcare.' Surprisingly, living in a rural environment has a protective effect on completed vaccinations. However, geographic region did predict significant differences in the probability that children would be fully vaccinated; children in the region with the lowest vaccination completion coverage were 80% less likely to have completed vaccination compared to children in the best performing region, which may indicate unequal access and utilization of health services nationally. Further study of regional differences, urbanicity, and distance as a healthcare access problem will help refine implications for the Bolivian health system.
Saleh, Dalia; Camart, Nathalie; Romo, Lucia
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.
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
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.
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.
Jessica N. DiBari
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.
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.
To prospectively study the stability of anabolic androgenic steroid (AAS) use and predictors of AAS use, and to investigate whether AAS use alters the risk of later emotional and behavioral problems. Survey of a national sample of Norwegian high school students (age 15-19) in 1994 followed up in 1999 (N = 2924). Measures of frequent alcohol intoxication (50+ times per 12 months), cannabis use (12 months), hard drug use (12 months), being offered cannabis, eating problems, conduct problems, sexual debut before age 15, BMI, involvement in power sports, perceived physical appearance, and satisfaction with body parts were obtained. Life-time prevalence of AAS use were 1.9 and 0.8% in the follow-up period. Multivariate logistic regression revealed that future AAS use was predicted by young age, male gender, previous AAS use, involvement in power sports, and frequent alcohol intoxication. AAS use did not predict future emotional or behavioral problems other than reducing the risk of future frequent alcohol intoxication. Frequent alcohol intoxication and involvement in power sports appear to predict future AAS use. At the population level there was little stability in individual AAS use from adolescence to early adulthood. No detrimental effects of AAS use could be detected in this study, but low statistical power limits this conclusion.
Davis, Josh; Burrows, James F; Ben Khallouq, Bertha; Rosen, Paul
To understand key drivers of patient satisfaction in pediatric hematology/oncology. The "top-box" scores of patient satisfaction surveys from 4 pediatric hematology/oncology practices were collected from 2012 to 2014 at an integrated Children's Health Network. One item, "Likelihood of recommending practice," was used as the surrogate for overall patient satisfaction, and all other items were correlated to this item. A total of 1244 satisfaction surveys were included in this analysis. The most important predictors of overall patient satisfaction were cheerfulness of practice ( r = .69), wait time ( r = .60), and staff working together ( r = .60). The lowest scoring items were getting clinic on phone, information about delays, and wait time at clinic. Families bringing their children for outpatient care in a hematology/oncology practice want to experience a cheerful and collaborative medical team. Wait time at clinic may be a key driver in the overall experience for families with children with cancer. Future work should be directed at using this evidence to drive patient experience improvement processes in pediatric hematology/oncology.
Shah, Malay B; Vilchez, Valery; Goble, Adam; Daily, Michael F; Berger, Jonathan C; Gedaly, Roberto; DuBay, Derek A
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.
Benedetti, Marco; Klinich, Kathleen D; Manary, Miriam A; Flannagan, Carol A
The objective of this study was to identify factors that predict restraint use and optimal restraint use among children aged 0 to 13 years. The data set is a national sample of police-reported crashes for years 2010-2014 in which type of child restraint is recorded. The data set was supplemented with demographic census data linked by driver ZIP code, as well as a score for the state child restraint law during the year of the crash relative to best practice recommendations for protecting child occupants. Analysis used linear regression techniques. The main predictor of unrestrained child occupants was the presence of an unrestrained driver. Among restrained children, children had 1.66 (95% confidence interval, 1.27, 2.17) times higher odds of using the recommended type of restraint system if the state law at the time of the crash included requirements based on best practice recommendations. Children are more likely to ride in the recommended type of child restraint when their state's child restraint law includes wording that follows best practice recommendations for child occupant protection. However, state child restraint law requirements do not influence when caregivers fail to use an occupant restraint for their child passengers.
Green, Melinda A; Scott, Norman A; Riopel, Cori M; Skaggs, Anna K
Passive Acceptance (PA) and Active Commitment (AC) subscales of the Feminist Identity Development Scale (FIDS) were examined as predictors of eating disorder diagnostic status as assessed by the Questionnaire for Eating Disorder Diagnoses (Q-EDD). Results of a hierarchical regression analysis revealed PA and AC scores were not statistically significant predictors of ED diagnostic status after controlling for diagnostic subtype. Results of a multiple regression analysis revealed FIDS as a statistically significant predictor of ED diagnostic status when failing to control for ED diagnostic subtype. Discrepancies suggest ED diagnostic subtype may serve as a moderator variable in the relationship between ED diagnostic status and FIDS. (c) 2008 Wiley Periodicals, Inc.
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...
Jørgensen, Marianne Johansson; Olesen, Frede; Maindal, Helle Terkildsen
, but the significance of this compared with other well-known predictors has only been briefly described. Aim: The aim is to examine if concurrent partners isan independent predictor for C. trachomatis infection in young Danes aged 15-29 years. Methods: Detailed sexual behavior data were collected via a web......:These preliminary results suggest that concurrent sexual partners is an important predictor for C.trachomatis infections among young Danes aged 15-29. A more concise conclusion will be presented at the Ph.D day......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...
Paulo Victor Mezzaroba
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.
Keller, Ronald; Krainovich-Miller, Barbara; Budin, Wendy; Djukic, Maja
Between 45% and 94% of registered nurses (RNs) experience verbal abuse, which is associated with physical and psychological harm. Although several studies examined predictors of RNs' verbal abuse, none examined predictors of RNs' experiences of verbal abuse by RN colleagues. To examine individual, workplace, dispositional, contextual, and interpersonal predictors of RNs' reported experiences of verbal abuse from RN colleagues. In this secondary analysis, a cross-sectional design with multiple linear regression analysis was used to examine the effect of 23 predictors on verbal abuse by RN colleagues in a sample of 1,208 early career RNs. Selected variables in the empirical intragroup conflict model explained 23.8% of variance in RNs' experiences of verbal abuse by RN colleagues. A number of previously unstudied factors were identified that organizational leaders can monitor and develop or modify policies to prevent early career RNs' experiences of verbal abuse by RN colleagues. Copyright © 2017 Elsevier Inc. All rights reserved.
de Jong, Roel; van Buuren, Stef; Spiess, Martin
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
Oct 26, 2017 ... State. The predictors of condom use are level of wealth, being unmarried, and primary level of .... barriers. However, condom cost, gender inequality, ..... Kamal and Huda in India, using the 2006 Indian DHS, found that ...
Predictors of pre-game anxiety dysphoria among teenage soccer players. ... The result confirmed a significant composite effect of the dependent variable on the independent variables (0.87637, 74.49548, ... AJOL African Journals Online.
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 ...
Evaluation feedback as a predictor of students' achievement in technical education. ... The major purpose of evaluation is to assess the strength and weaknesses of the learner. Therefore, for evaluation to be meaningful, students should ...
Perceived usefulness and culture as predictors of teachers attitudes towards ... perceived usefulness, perceived cultural relevance, perceived competence and access to ... and senior phase, completed the Attitudes Towards Computer Scale.
association between bodyweight disorders, such as underweight, overweight ... To assess the predictors of overweight and obesity in SA children and adolescents. Methods. ..... factors, poor nutritional intake and food practices and parents'.
Predictors on utilization of maternal, newborn and child health services among rural women in Manicaland Zimbabwe. ... Central African Journal of Medicine ... The study targeted women of child bearing age (15-49 years) who were either ...
Bartek, Jiri; Sjåvik, Kristin; Förander, Petter
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...
Fawzia El Demerdash
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.
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....
Predictors of Contraceptive use Among Female Adolescents in Ghana. ... contraceptive use amongst adolescent girls in Ghana using the 2008 Ghana Demographic and Health Survey (GDHS). ... (Afr J Reprod Health 2014; 18: 102-109).
Changes in plasma osmolality and anion gap: potential predictors of ... PROMOTING ACCESS TO AFRICAN RESEARCH ... Objective: To determine the relationship of mortality to plasma osmolality and anion gap inpatients on haemodialysis.
Toll, S.W.M.; van der Ven, S.H.G.; Kroesbergen, E.H.; van Luit, J.E.H.
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
Campbell, Aimee N C; Tross, Susan; Hu, Mei-chen; Pavlicova, Martina; Nunes, Edward V
Gender-based relationship power is frequently linked to women's capacity to reduce sexual risk behaviors. This study offers an exploration of predictors of relationship power, as measured by the multidimensional and theoretically grounded sexual relationship power scale, among women in outpatient substance abuse treatment. Linear models were used to test nine predictors (age, race/ethnicity, education, time in treatment, economic dependence, substance use, sexual concurrency, partner abuse, and sex role orientation) of relationship power among 513 women participating in a multi-site HIV risk reduction intervention study. Significant predictors of relationship control included having a non-abusive male partner, only one male partner, and endorsing traditional masculine (or both masculine and feminine) sex role attributes. Predictors of decision-making dominance were interrelated, with substance use × partner abuse and age × sex role orientation interactions. Results contribute to the understanding of factors which may influence relationship power and to their potential role in HIV sexual risk reduction interventions.
Sociocultural predictors of motor development of athletes from Botswana, Lesotho and Swaziland. ... variables as they influenced the athletes' motor skill development. The social situations, family and the schools were found to significantly ...
Stressful Life Events and Irrational Beliefs as Predictors of Psychological Wellbeing ... characterized with negative indicators, such as, anxiety, depression. Does similar relationship is evident referring to positive indicators of Psychological ...
Weber, Martin W; Carlin, John B; Gatchalian, Salvacion; Lehmann, Deborah; Muhe, Lulu; Mulholland, E Kim
Neonatal infections are a major cause of death worldwide. Simple procedures for identifying infants with infection that need referral for treatment are therefore of major public health importance. We investigated 3303 infants Ethiopia, The Gambia, Papua New Guinea and The Philippines, using a standardized approach. Historical factors and clinical signs predicting sepsis, meningitis, hypoxemia, deaths and an ordinal scale indicating severe disease were investigated by logistic regression, and the performance of simple combination rules was explored. In multivariable analysis, reduced feeding ability, no spontaneous movement, temperature >38 degrees C, being drowsy/unconscious, a history of a feeding problem, history of change in activity, being agitated, the presence of lower chest wall indrawing, respiratory rate >60 breaths/min, grunting, cyanosis, a history of convulsions, a bulging fontanel and slow digital capillary refill were independent predictors of severe disease. The presence of any 1 of these 14 signs had a sensitivity for severe disease (defined as sepsis, meningitis, hypoxemia, or radiologically proven pneumonia) of 87% and a specificity of 54%. More stringent combinations, such as demanding 2 signs from the list, resulted in a considerable loss of sensitivity. By contrast only slight loss of sensitivity and considerable gain of specificity resulted from reducing the list to 9 signs. Requiring the presence of fever and any other sign produced a diagnostic rule with extremely low sensitivity (25%). Physical signs can be used to identify young infants at risk of severe disease, however with limited specificity, resulting in large numbers of unnecessary referrals. Further studies are required to validate and refine the prediction of severe disease, especially in the first week of life, but there appear to be limits on the accuracy of prediction that is achievable.
Liu, Jinhua; Duan, Jun; Bai, Linfu; Zhou, Lintong
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.
Gershon, Pnina; Zhu, Chunming; Klauer, Sheila G; Dingus, Tom; Simons-Morton, Bruce
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
Sanchez-Dalmau, Bernardo; Martinez-Lapiscina, Elena H; Pulido-Valdeolivas, Irene; Zubizarreta, Irati; Llufriu, Sara; Blanco, Yolanda; Sola-Valls, Nuria; Sepulveda, Maria; Guerrero, Ana; Alba, Salut; Andorra, Magi; Camos, Anna; Sanchez-Vela, Laura; Alfonso, Veronica; Saiz, Albert; Villoslada, Pablo
Visual impairment significantly alters the quality of life of people with Multiple Sclerosis (MS). The objective of this study was to identify predictors (independent variables) of visual outcomes, and to define their relationship with neurological disability and retinal atrophy when assessed by optical coherence tomography (OCT). We performed a cross-sectional analysis of 119 consecutive patients with MS, assessing vision using high contrast visual acuity (LogMar), 2.5% and 1.25% low contrast visual acuity (Sloan charts), and color vision (Hardy-Rand-Rittler plates). Quality of vision is a patient reported outcome based on an individual's unique perception of his or her vision and was assessed with the Visual Functioning Questionnaire-25 (VFQ-25) with the 10 neuro-ophthalmologic items. MS disability was assessed using the expanded disability status scale (EDSS), the MS functional composite (MSFC) and the brief repetitive battery-neuropsychology (BRB-N). Retinal atrophy was assessed using spectral domain OCT, measuring the thickness of the peripapillar retinal nerve fiber layer (pRNFL) and the volume of the ganglion cell plus inner plexiform layer (GCIPL). The vision of patients with MS was impaired, particularly in eyes with prior optic neuritis. Retinal atrophy (pRNFL and GCIPL) was closely associated with impaired low contrast vision and color vision, whereas the volume of the GCIPL showed a trend (p = 0.092) to be associated with quality of vision. Multiple regression analysis revealed that EDSS was an explanatory variable for high contrast vision after stepwise analysis, GCIPL volume for low contrast vision, and GCIPL volume and EDSS for color vision. The explanatory variables for quality of vision were high contrast vision and color vision. In summary, quality of vision in MS depends on the impairment of high contrast visual acuity and color vision due to the disease.
Agarwal, Nitin; Arkilo, Dimitrios; Farooq, Osman; Gillogly, Cynthia; Kavak, Katelyn S; Weinstock, Arie
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.
Rootman, Dan B; Luu, Shelly; M Conti, Stephen; Mandell, Mark; Devenyi, Robert; Lam, Wai-Ching; Kertes, Peter J
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.
Keller, Christine; Wang, Nancy E; Imler, Daniel L; Vasanawala, Shreyas S; Bruzoni, Matias; Quinn, James V
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.
van der Velden, Peter G.; Bosmans, Mark W.G.; van der Meulen, Erik
Abstract Aim To examine predictors of repeated confrontations with workplace violence among ambulance personnel, the proportion of exposure to potentially traumatic events that are aggression-related and to what extent personnel was able to prevent escalations. Although previous research assessed the prevalences among this group, little is known about predictors, to what extent PTE’s are WPV-related and their abilities to prevent escalations. Design A longitudinal study with a 6 months’ time ...
Vande Walle, Nathalie; Kenis, Cindy; Heeren, Pieter; Van Puyvelde, Katrien; Decoster, Lore; Beyer, Ingo; Conings, Godelieve; Flamaing, Johan; Lobelle, Jean-Pierre; Wildiers, Hans; Milisen, Koen
Background In the older population falls are a common problem and a major cause of morbidity, mortality and functional decline. The etiology is often multifactorial making the identification of fall predictors essential for preventive measures. Despite this knowledge, data on falls within the older cancer population are limited. The objective of this study was to evaluate the occurrence of falls within 2 to 3?months after cancer treatment decision and to identify predictors of falls (?1 fall)...
Kassem, Hussein Heshmat; Elmahdy, Mahmoud Farouk; Ewis, Essam Baligh; Mahdy, Soilman Ghareeb
Background: Femoral artery pseudoaneurysm (FAP) is a troublesome complication after transfemoral catheter procedures. The incidence and predictors of FAP as a separate entity have not been extensively studied. Aim: Detect prospectively the incidence and predictors of post catheterization FAP. Methods: From June 2009 till June 2011, we prospectively included all patients who underwent catheterization from the femoral approach. Duplex ultrasound was performed in cases with clinical suspic...
Pushpa; Mahadeva; Raghunath; Hamsa
Metabolic Syndrome (MetS) is a group of disorders characterized by obesity, hypertension, glucose intolerance and dyslipidemia. This study was undertaken to determine whether lipid ratios calculated by routinely measured lipid profile can be used as predictor of MetS and which among them could be used as better predictor. MATERIALS AND METHODS Data consisting of anthropometric measurements, blood pressure, laboratory parameters like fasting blood sugar, Total Cholesterol (TC), Triglycer...
Full Text Available 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 at the Competence Centre for Transcultural Psychiatry (CTP, Denmark. The CTP Predictor Index used in the study included 15 different possible outcome predictors concerning the patients’ past, chronicity of mental health problems, pain, treatment motivation, prerequisites for engaging in psychotherapy, and social 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 correlated to pre- to post treatment score changes on the majority of the ratings mentioned above. While employment status was the only single item significantly correlated to HTQ-score changes, a number of single items from the CTP Predictor Index correlated significantly with changes in depression and anxiety symptoms, but the size of the correlation coefficients were modest. Conclusions: The total score of the CTP Predictor Index correlated significantly
Campbell, Aimee N. C.; Tross, Susan; Hu, Mei-chen; Pavlicova, Martina; Nunes, Edward V.
Gender-based relationship power is frequently linked to women’s capacity to reduce sexual risk behaviors. This study offers an exploration of predictors of relationship power, as measured by the multidimensional and theoretically grounded Sexual Relationship Power Scale (SRPS), among women in outpatient substance abuse treatment. Linear models were used to test nine predictors (age, race/ethnicity, education, time in treatment, economic dependence, substance use, sexual concurrency, partner a...
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
Lily A. van Bilsen
Full Text Available 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.
Billings, Jay Jay [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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).
James A Janssen
Full Text Available Abstract Background Physical inactivity is a leading cause of mortality worldwide. Many patterns of physical activity involvement are established early in life. To date, the role of easily identifiable early-life individual predictors of PA, such as childhood temperament, remains relatively unexplored. Here, we tested whether childhood temperamental activity level, high intensity pleasure, low intensity pleasure, and surgency predicted engagement in physical activity (PA patterns 11 years later in adolescence. Methods Data came from a longitudinal community study (N = 206 participants, 53% females, 70% Caucasian. Parents reported their children’s temperamental characteristics using the Child Behavior Questionnaire (CBQ when children were 4 & 5 years old. Approximately 11 years later, adolescents completed self-reports of PA using the Godin Leisure Time Exercise Questionnaire and the Youth Risk Behavior Survey. Ordered logistic regression, ordinary least squares linear regression, and Zero-inflated Poisson regression models were used to predict adolescent PA from childhood temperament. Race, socioeconomic status, and adolescent body mass index were used as covariates. Results Males with greater childhood temperamental activity level engaged in greater adolescent PA volume (B = .42, SE = .13 and a 1 SD difference in childhood temperamental activity level predicted 29.7% more strenuous adolescent PA per week. Males’ high intensity pleasure predicted higher adolescent PA volume (B = .28, SE = .12. Males’ surgency positively predicted more frequent PA activity (B = .47, SE = .23, OR = 1.61, 95% CI: 1.02, 2.54 and PA volume (B = .31, SE = .12. No predictions from females’ childhood temperament to later PA engagement were identified. Conclusions Childhood temperament may influence the formation of later PA habits, particularly in males. Boys with high temperamental activity level, high intensity
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).
Botetzagias, Iosif; Malesios, Chrisovaladis; Poulou, Dimitra
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
Ardalan, Kaveh; Zigler, Christina K; Torok, Kathryn S
Localized scleroderma can negatively affect children's quality of life (QoL), but predictors of impact have not been well described. We sought to identify predictors of QoL impact in juvenile localized scleroderma patients. We analyzed longitudinal data from a single-center cohort of juvenile localized scleroderma patients, using hierarchical generalized linear modeling (HGLM) to identify predictors of QoL impact. HGLM is useful for nested data and allows for evaluation of both time-variant and time-invariant predictors. The number of extracutaneous manifestations (ECMs; e.g., joint contracture and hemifacial atrophy) and female sex predicted negative QoL impact, defined as a Children's Dermatology Life Quality Index score >1 (P = 0.019 for ECMs and P = 0.002 for female sex). As the time since the initial visit increased, the odds of reporting a negative QoL impact decreased (P scleroderma than cutaneous features. Further study is required to determine which ECMs have the most impact on QoL, which factors underlie sex differences in QoL in localized scleroderma, and why increasing the time since the initial visit appears to be protective. An improved understanding of predictors of QoL impact may allow for the identification of patients at risk of poorer outcomes and for the tailoring of treatment and psychosocial support. © 2016, American College of Rheumatology.
Full Text Available This article presents original probabilistic price forecasting meta-models (PPFMCP models, by aggregation of competitive predictors, for day-ahead hourly probabilistic price forecasting. The best twenty predictors of the EEM2016 EPF competition are used to create ensembles of hourly spot price forecasts. For each hour, the parameter values of the probability density function (PDF of a Beta distribution for the output variable (hourly price can be directly obtained from the expected and variance values associated to the ensemble for such hour, using three aggregation strategies of predictor forecasts corresponding to three PPFMCP models. A Reliability Indicator (RI and a Loss function Indicator (LI are also introduced to give a measure of uncertainty of probabilistic price forecasts. The three PPFMCP models were satisfactorily applied to the real-world case study of the Iberian Electricity Market (MIBEL. Results from PPFMCP models showed that PPFMCP model 2, which uses aggregation by weight values according to daily ranks of predictors, was the best probabilistic meta-model from a point of view of mean absolute errors, as well as of RI and LI. PPFMCP model 1, which uses the averaging of predictor forecasts, was the second best meta-model. PPFMCP models allow evaluations of risk decisions based on the price to be made.
Flórez, Gerardo; Saiz, Pilar A; García-Portilla, Paz; De Cos, Francisco J; Dapía, Sonia; Alvarez, Sandra; Nogueiras, Luis; Bobes, Julio
This cohort study examined how predictors of alcohol dependence treatment outcomes work together over time by comparing pretreatment and posttreatment predictors. A sample of 274 alcohol-dependent patients was recruited and assessed at baseline, 6 months after treatment initiation (end of the active intervention phase), and 18 months after treatment initiation (end of the 12-month research follow-up phase). At each assessment point, the participants completed a battery of standardized tests [European Addiction Severity Index (EuropASI), Obsessive Compulsive Drinking Scale (OCDS), Alcohol Timeline Followback (TLFB), Fagerström, and International Personality Disorder Examination (IPDE)] that measured symptom severity and consequences; biological markers of alcohol consumption were also tested at each assessment point. A sequential strategy with univariate and multivariate analyses was used to identify how pretreatment and posttreatment predictors influence outcomes up to 1 year after treatment. Pretreatment variables had less predictive power than posttreatment ones. OCDS scores and biological markers of alcohol consumption were the most significant variables for the prediction of posttreatment outcomes. Prior pharmacotherapy treatment and relapse prevention interventions were also associated with posttreatment outcomes. The findings highlight the positive impact of pharmacotherapy during the first 6 months after treatment initiation and of relapse prevention during the first year after treatment and how posttreatment predictors are more important than pretreatment predictors.
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.
Giacobello, Daniele; van Waterschoot, Toon; Christensen, Mads Græsbøll
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...
Sadiq, Abdul-Akeem; Graham, John D
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.
Jorge A. Herrera-Cuartas
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.
Wimmelmann, Cathrine Lawaetz; Dela, Flemming; Mortensen, Erik Lykke
factors are thought to play animportant role for maintaining the surgical weight loss. However, results from priorresearch examining preoperative psychological predictors of weight loss outcomeare inconsistent. The aim of this article was to review more recent literature onpsychological predictors...... studies published after 2003 were included.Results: 19 eligible studies were identified. Psychological predictors of surgicalweight loss investigated in the reviewed studies include cognitive function, per-sonality, psychiatric disorder, and eating behaviour.......Background: Morbid obesity is the fastest growing BMI group in the U.S. and the prevalence of morbid obesity worldwide has never been higher. Bariatric surgery is the most effective treatment for severe forms of obesity especially with regardto a sustained long-term weight loss. Psychological...
Zaretzki, Jed; Rydberg, Patrik; Bergeron, Charles
(82.3%) and merged(86.0%). Comprehensive datamining of each substrate set and careful statistical analyses of the predictions made by the different models revealed new insights into molecular features that control metabolic regioselectivity and enable accurate prospective prediction of likely SOMs.......RS-Predictor is a tool for creating pathway-independent, isozyme-specific site of metabolism (SOM) prediction models using any set of known cytochrome P450 substrates and metabolites. Until now, the RS-Predictor method was only trained and validated on CYP 3A4 data, but in the present study we...... report on the versatility the RS-Predictor modeling paradigm by creating and testing regioselectivity models for substrates of the nine most important CYP isozymes. Through curation of source literature, we have assembled 680 substrates distributed among CYPs 1A2, 2A6, 2B6, 2C19, 2C8, 2C9, 2D6, 2E1 and 3...
Markkula, Ritva A; Kalso, Eija A; Kaprio, Jaakko A
Fibromyalgia (FM) is a pain syndrome, the mechanisms and predictors of which are still unclear. We have earlier validated a set of FM-symptom questions for detecting possible FM in an epidemiological survey and thereby identified a cluster with "possible FM". This study explores prospectively predictors for membership of that FM-symptom cluster. A population-based sample of 8343 subjects of the older Finnish Twin Cohort replied to health questionnaires in 1975, 1981, and 1990. Their answers to the set of FM-symptom questions in 1990 classified them in three latent classes (LC): LC1 with no or few symptoms, LC2 with some symptoms, and LC3 with many FM symptoms. We analysed putative predictors for these symptom classes using baseline (1975 and 1981) data on regional pain, headache, migraine, sleeping, body mass index (BMI), physical activity, smoking, and zygosity, adjusted for age, gender, and education. Those with a high likelihood of having fibromyalgia at baseline were excluded from the analysis. In the final multivariate regression model, regional pain, sleeping problems, and overweight were all predictors for membership in the class with many FM symptoms. The strongest non-genetic predictor was frequent headache (OR 8.6, CI 95% 3.8-19.2), followed by persistent back pain (OR 4.7, CI 95% 3.3-6.7) and persistent neck pain (OR 3.3, CI 95% 1.8-6.0). Regional pain, frequent headache, and persistent back or neck pain, sleeping problems, and overweight are predictors for having a cluster of symptoms consistent with fibromyalgia.
Sonne, Charlotte; Carlsson, Jessica; Bech, Per
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...
Sonne, Charlotte; Carlsson, Jessica; Bech, Per
at the Competence Centre for Transcultural Psychiatry (CTP), Denmark. The CTP Predictor Index used in the study included 15 different possible outcome predictors concerning the patients' past, chronicity of mental health problems, pain, treatment motivation, prerequisites for engaging in psychotherapy, and social...... 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...
Cesario, Sandra K; Cesario, Robert J; Cesario, Anthony R
Stringent admission criteria exist for nursing programs in the United States, but better predictors of success are needed to reduce student attrition. Research indicates that organized music experiences are associated with greater academic success. This exploratory study examined the association between early music experiences and undergraduate nursing student success. Findings suggest that students with a music background were more likely to graduate, have higher grade point averages, and pass the licensure examination. Previous music education might be considered as an additional predictor of nursing student success.
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.
Federico Pulido Acosta
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.
Hamlen, Karla R.
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…
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 ...
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 ...
Roberts, A. S.
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…
Dogan, Huseyin; Bozgeyikli, Hasan; Bozdas, Canan
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"…
Kim, Jae-Min; Shin, Il-Seon; Jeong, Seong-Joo; Gormley, Niall; Yoon, Jin-Sang
Many studies have sought to determine the predictors of institutionalization of patients with dementia. Such studies, performed in developed western societies, have come to various conclusions which may not be supported in an East Asian culture such as that found in Korea. This study aimed to determine the factors that predict institutionalization of patients in Korea diagnosed with dementia. Seventy-nine cases (37 institutionalized, 42 community-dwelling) in the Kwangju area were evaluated for patient characteristics, severity of dementia symptoms, caregiver characteristics, burden and distress. Logistic regression was performed to determine predictors of actual institutionalization. Six predictors of institutionalization were identified. Of these, three were patient-related factors: higher score on the Clinical Dementia Rating, higher score on the Brief Psychiatric Rating Scale, and shorter duration of dementia. The other three were caregiver-related factors: younger age, higher education (formal schooling), and higher cost of home care. As seen in previous western studies, institutionalization of dementia sufferers was influenced by both patient and caregiver factors. But, the specific predictors and their relative influences might be explained best by the particular social, cultural and economic situation in Korea. This study was the first of its kind in Korea and, as such, could serve as a reference for future intra-cultural and cross-cultural comparisons. Copyright 2002 John Wiley & Sons, Ltd.
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 ...
Dilworth, Jennie E. Long
Prior research has inconsistently documented the gendered nature of negative spillover between the domains of home and work. Little is known about predictors of negative spillover for employed mothers and fathers. Using the 1997 wave of the National Study of the Changing Workforce, this study's purpose was twofold: to determine if a difference…
Chakraborty, Sasthi Narayan; Roy, Sunetra Kaviraj; Rahaman, Md Abdur
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. To ascertain the prevalence and epidemiological predictors of metabolic syndrome. 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. 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. 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.
van der Velden, Peter; Bosmans, Mark; van der Meulen, Erik
Abstract Aim To examine predictors of repeated confrontations with workplace violence among ambulance personnel, the proportion of exposure to potentially traumatic events that are aggression-related and to what extent personnel was able to prevent escalations. Although previous research assessed
Grogan-Kaylor, Andrew; Burlaka, Viktor; Ma, Julie; Lee, Shawna; Castillo, Berenice; Churakova, Iuliia
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.
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 ...
Kim, Dae Yoon; Kim, Jeong Kon; Cho, Kyoung-Sik; Min, Gyeong-Eun; Ahn, Han-Jong
Background: Utilization of multidetector-row CT (MDCT) is anticipated to improve the diagnostic accuracy and reliability for determining malignant cysts. Purpose: To assess the diagnostic accuracy, interobserver agreement, benefit of consensus reading, and strong predictors of malignancy in determining malignant cystic renal masses at MDCT. Material and Methods: Two radiologists independently rated the probability of malignancy at MDCT in 72 benign and 53 malignant cysts. The accuracy and interobserver agreement for determining malignant cysts were evaluated. The strong predictors of malignancy were determined, and in patients with interobserver disagreement for determining malignant cysts, consensus readings were performed. Results: Az value of the two readers was 0.905-0.936 and the sensitivity and specificity were 85-89% and 83-93%, respectively. The overall interobserver agreement for determining the malignant cyst was good as the κ value was 0.696 (% agreement, 61% (76/125)). Thickened irregular wall, thickened irregular septa, and enhancing soft tissue component were strong predictors for malignancy with both readers. In the 17 patients with interobserver disagreement for determining malignant cysts, the sensitivity was improved from 38-63% to 89% by the consensus reading. Conclusion: At MDCT, some false negative decisions for determining malignant cysts can be corrected by consensus reading, and thickened irregular septa, thickened irregular wall, and enhancing soft tissue component are the strong predictors of malignant cysts
Canhão, Patrícia; Ferro, José M.; Lindgren, Arne G.; Bousser, Marie-Germaine; Stam, Jan; Barinagarrementeria, Fernando
Background and Purpose - The causes of death of patients with cerebral venous thrombosis (CVT) have not been systematically addressed in previous studies. We aimed to analyze the causes and predictors of death during the acute phase of CVT in the International Study on Cerebral Vein and Dural Sinus
Culture and gender as predictors of undergraduates' perception of gender roles. ... tasks as appropriate for women was found more among the southern female participants than the other three groups. The findings were attributed to differences in levels of urbanization, educational attainment of parents and cultural values.
Vianden, Jörg; Barlow, Patrick J.
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…
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 ...
Magnello, M. Eileen
An inventory was administered to 161 college students in the late fall of 1977 in an attempt to predict the academic major of either psychology or special education students. The predictors were from the following series of items: demographic characteristics, academic information, occupational interests, and utility of their college program. A…
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 ...
Zhang, Qian; Wang, Lijuan
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).
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.
Nielsen, Anne-Mette Veber; Juul, Holger
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…
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…
Heijstra, Thamar; Bjarnason, Thoroddur; Rafnsdóttir, Gudbjörg Linda
This article examines whether age, work-related, and family-related predictors explain differences in the academic advancement of women and men in Iceland. Survey data were analyzed by binary logistic regression. The findings put that women climb the academic career ladder at a slower pace than men. This finding puts one of the widely known…
Castillo, Linda G.; Zahn, Marion P.; Cano, Miguel A.
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…
Spieker, Susan J.; Campbell, Susan B.; Vandergrift, Nathan; Pierce, Kim M.; Cauffman, Elizabeth; Susman, Elizabeth J.; Roisman, Glenn I.
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…
Literature Review Predictors of non-condom use intentions by university students in Britain and Greece: The impact of attitudes, time perspective, relationship ... influences, participants high in fatalistic TP were strongly inclined not to use condoms, irrespective of their attitudes, but TP did not differ as a function of culture.
Oleander toxicity – the clinical spectrum and mortality predictors: an observational study. ... This is a prospective, observational study conducted at Villupuram Medical College. Consecutive hospitalized patients who had consumed ... The data were analyzed using standard statistical methods. A total of 101 patients (46 male ...
Sobel, Harry J.; Worden, J. William
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)
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, ...
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 ...
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 ...
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 ...
Oliveira, Telma Sobral; Valente, Ana Tentúgal; Caetano, Cristina Guerreiro; Garagarza, Cristina Antunes
Malnutrition is common in patients undergoing haemodialysis (HD). Several studies have described different nutritional parameters as mortality predictors but few have studied whether there are differences between genders. This study aimed to evaluate which nutrition parameters may be associated with mortality in patients undergoing long-term HD depending on their gender. Longitudinal prospective multicentre study with 12 months of follow-up. Anthropometric and laboratory measures were obtained from 697 patients. Men who died were older, had lower dry weight, body mass index, potassium, phosphorus and albumin, compared with male patients who survived. Female patients who died had lower albumin and nPCR compared with survivors. Kaplan-Meier analysis displayed a significantly worse survival in patients with albumin mortality was related to body mass index mortality risk continued to be significant after adjustments for age, length of time on dialysis and diabetes for males. However, in women, only albumin persisted as an independent predictor of death. Depending on the gender, different parameters such as protein intake, potassium, phosphorus, body mass index and albumin are associated with mortality in patients undergoing HD. Albumin mortality predictor in both genders, whereas a body mass index <23 kg/m 2 is an independent predictor of death, but only in men. © 2017 European Dialysis and Transplant Nurses Association/European Renal Care Association.
Azen, Razia; Traxel, Nicole
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…
Ali A. Mabrouk
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.
Sasthi Narayan Chakraborty
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.
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 ...
Cognitive and social predictors of generalized anxiety disorder symptoms among fresh undergraduates in Uganda. ... The prevalence of this common disorder and the associated factors in Ugandan students are unknown. ... Psychological interventions for undergraduate students may be needed to target these factors.
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.
Sonne, Charlotte Kærgaard; Mortensen, Erik Lykke; Carlsson, Jessica
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...
Abdel-Khalek, Ahmed M.; Maltby, John
The objective of the study was to compare various predictors of death obsession (i.e., anxiety, optimism, pessimism), and self-ratings of religiosity, physical health, mental health, happiness, and satisfaction with life, among 2 samples of college students recruited from two different cultures: Kuwait (n = 271) and United Kingdom (n = 205). The…
Roumen, C.; Feskens, E.J.M.; Corpeleijn, E.; Mensink, M.R.; Saris, W.H.M.; Blaak, E.E.
Original Article European Journal of Clinical Nutrition (2011) 65, 1141–1147; doi:10.1038/ejcn.2011.74; published online 18 May 2011 Predictors of lifestyle intervention outcome and dropout: the SLIM study C Roumen1, E J M Feskens2, E Corpeleijn1, M Mensink2, W H M Saris1 and E E Blaak1 1Department
Lampropoulos, Georgios K.; Schneider, Mercedes K.; Spengler, Paul M.
Despite the existence of counseling dropout research, there are limited predictive data for counseling in training clinics. Potential predictor variables were investigated in this archival study of 380 client files in a university counseling training clinic. Multinomial logistic regression, predictive discriminant analysis, and classification and…
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…
Objective: To determine predictors for outcomes of traumatic brain injury (TBI) in infants and children younger than twelve years admitted to our pediatric intensive care units (PICU). Methods: This is a retrospective cohort study from 2004-5, done at the PICU of King Fahad Hofuf Hospital, Eastern Province, Saudi Arabia.
Jan 1, 2014 ... Results: The predictors of the C-reactive protein response in malaria (CRP ≥ 10mg/l) were fever (t = 6.867; ..... The lack of a significant difference between the ... infections - A major cause of death among children in Africa.
Brugman, S.; Lobbestael, J.; Arntz, A.R.; Cima, M.; Schumann, T.; Dambacher, F.
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
Dahlsgaard, Katherine K.; Beck, Aaron T.; Brown, Gregory K.
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)
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.
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 ...
Eight major predictor variables of workload, role, career prospects, organizational structure and climate, interpersonal relations, environment, home and private life were tested using simple regression analysis. Also, public and private sector executives were compared on the basis of age and working experience. All results ...
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 ...
Price, Christine A.; Balaswamy, Shantha
Despite empirical support for the positive effects of health and wealth on retirement satisfaction, alternative variables also play a key role in helping to shape women's assessment of retirement. In the present study, we explore personal and psychosocial predictors of women's retirement satisfaction while controlling for financial security and…
Personality Traits as Predictors of Work Efficiency Among Nigerian Oil ... of 0.85 and reliability co-efficient of 0.85 and Job Performance Appraisal (JPA) from Oliver, ... recommendations were made on assigning individual workers to critical or ...
Moon, Sung Seek; Kang, Suk-Young; An, Soonok
This paper examines the predictors and indicators of immigrant children's school achievement, using the two of the most predominant groups of American immigrants (103 Koreans and 100 Mexicans). Regression analyses were conducted to determine which independent variables (acculturation, parenting school involvement, parenting style, parent…
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).
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 ...
Woodford, Michael R.; Silverschanz, Perry; Swank, Eric; Scherrer, Kristin S.; Raiz, Lisa
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…
Gaja Zager Kocjan
Full Text Available The present study was designed to examine the differences between genders in the perception of romantic relationship as well as in aspects of the relationship that are important for their relationship satisfaction. However, previous studies rarely report significant differences between genders in various predictors of the relationship satisfaction. In our study, similar conclusions were obtained. Relationship satisfaction was predicted with attachment, self-esteem, and partner's social support. The study included 200 participants (63.5% of women who completed the following questionnaires: Experience in Close Relationships – Revised Short ECR-RS, Quality of Relationship Inventory QRI, Relationship Satisfaction Scale RSS, and a single-item self-esteem measure. For both genders, significant positive predictor of their relationship satisfaction was self-esteem, while avoidance, anxiety, and conflict in the relationship were significant negative predictors. There were no significant differences between genders. These findings are consistent with the findings of previous studies, which rarely report significant gender differences in the various predictors.
Wang, Lili; Zhang, Yun; He, Maolin
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.
Voorveld, H.A.M.; Segijn, C.M.; Ketelaar, P.E.; Smit, E.G.
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
There have been few studies on stroke mortality and its predictors in Nigeria. This study ... Stroke is one of the major public health problems in the world ... of stroke therefore is arbitrary at its worst. At best, it is ... value (in percentage points) which in actual terms de- ... stroke, past medical history, family and social history.
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.
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
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…
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 ...
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 ...
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 ...
Diener, Marissa L.; Kim, Do-Yeong
The present study examined child and maternal predictors of children's social competence in preschool. One hundred ten mothers and their preschool-aged children participated. Mothers completed parent reports of child temperament and self-regulation, and self-reports of maternal separation anxiety. Mothers' interactional style was coded from…
Cavanaugh, Barbara Harlow
This study determines the relative strength of predictors of school violence among a sample of 229 girls enrolled in a single middle school. The four-part questionnaire, comprising sociodemographic items, a school violence inventory, a self-esteem scale, and an attitudes toward violence scale, measured school violence in terms of suspendable…
Castillo, Linda G.; Conoley, Collie W.; King, Jennifer; Rollins, Dahl; Rivera, Saori; Veve, Mia
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…
Bruening, Meg; Larson, Nicole; Story, Mary; Neumark-Sztainer, Dianne; Hannan, Peter
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…
Langdon, Jody; Rukavina, Paul; Greenleaf, Christy
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…
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…
Smirnova, S V; Barilo, A A; Smolnikova, M V
To assess the state of the hepatobiliary system in psoriasis andpsoriatic arthritis in order to establish a causal relationship and to identify clinical and functional predictors of psoriatic disease progression. The study includedpatients with extensive psoriasis vulgaris (n = 175) aged 18 to 66 years old and healthy donors (n = 30), matched by sex and age: Group 1--patients with psoriasis (PS, n = 77), group 2--patients with psoriatic arthritis (PsA, n = 98), group 3--control. The evaluation of functional state of the hepatobiliary system was performed by the analysis of the clinical and anamnestic data and by the laboratory-instrumental methods. We identified predictors of psoriasis: triggers (stress and nutritionalfactor), increased total bilirubin, aspartate aminotransferase, alkaline phosphatase, gamma-glutamyl transferase, eosinophilia, giardiasis, carriers of hepatitis C virus, ductal changes andfocal leisons in the liver, thickening of the walls of the gallbladder detected by ultrasound. Predictors ofpsoriatic arthritis: age over 50 years, dyspeptic complaints, the presence of hepatobiliary system diseases, the positive right hypochondrium syndrome, the clinical symptoms of chronic cholecystitis, excess body weight, high levels of bilirubin, cholesterol and low density lipoprotein, hepatomegaly, non-alcoholic fatty liver disease. High activity of hepatocytes cytolysis, cholestasis, inflammation, metabolic disorders let us considerpsoriatic arthritis as a severe clinical stage psoriatic disease when the hepatobiliary system, in turn, is one of the main target organs in systemic psoriatic process. Non-alcoholic fatty liver disease and chronic cholecystitis are predictors of psoriatic disease progression.
Martínez, Héctor Pérez; Garbarino, Maurizio; Yannakakis, Georgios N.
This paper examines the generality of features extracted from heart rate (HR) and skin conductance (SC) signals as predictors of self-reported player affect expressed as pairwise preferences. Artificial neural networks are trained to accurately map physiological features to expressed affect in two...
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.
developing countries however, the prevalence of post-operative pain is relatively very high and pain control strategies ... Keywords: post-operative pain, prevalence, predictors, pain management, satisfaction, Tanzania. Introduction ..... perception and patterns of cerebral activation during noxious heat stimulation in humans.
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
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…
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 ...
Boswell, Katelyn; Zablotsky, Benjamin; Smith, Christopher
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…
van den Berge, Jan C.; Dulfer, Karolijn; Utens, Elisabeth M. W. J.; Hartman, Eline M. J.; Daemen, Joost; van Geuns, Robert J.; van Domburg, Ron T.
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' post-PCI period. We included
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 ...
Gupta, Atul; Turek, Joseph
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…
Beck-Cross, Cathy; Cooper, Robyn
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…
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 ...
Köseoglu, Pinar; Köksal, Mustafa Serdar
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…
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 ...
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
Background: Geriatric depression is sometimes unrecognized by clinicians and often, depressive symptoms are attributed to the ageing process. The objective of this study was to determine the prevalence and predictors of depression in the elderly in selected rural communities in Delta State, Nigeria. Methods: This ...
Williams, Robert H.; Williams, Sharon Ann
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)
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.
Magnitude and predictors of excessive alcohol use in Ethiopia: Findings from the 2015 national non-communicable diseases STEPS survey. ... overall prevalence of lifetime alcohol consumption was 49.3%, and 40.7% of the study participants reported consumption of alcohol in the past 30 days, defined as current drinkers.
Bie Bogh, Søren; Falstie-Jensen, Anne Mette; Hollnagel, Erik
Objective: To identify predictors of the effectiveness of hospital accreditation on process performance measures. Design: A multi-level, longitudinal, stepped-wedge, nationwide study. Participants: All patients admitted for acute stroke, heart failure, ulcers, diabetes, breast cancer and lung can...
Nina S N Lam
Full Text Available We analyzed the business reopening process in New Orleans after Hurricane Katrina, which hit the region on August 29, 2005, to better understand what the major predictors were and how their impacts changed through time. A telephone survey of businesses in New Orleans was conducted in October 2007, 26 months after Hurricane Katrina. The data were analyzed using a modified spatial probit regression model to evaluate the importance of each predictor variable through time. The results suggest that the two most important reopening predictors throughout all time periods were the flood depth at the business location and business size as represented by its wages in a logarithmic form. Flood depth was a significant negative predictor and had the largest marginal effects on the reopening probabilities. Smaller businesses had lower reopening probabilities than larger ones. However, the nonlinear response of business size to the reopening probability suggests that recovery aid would be most effective for smaller businesses than for larger ones. The spatial spillovers effect was a significant positive predictor but only for the first nine months. The findings show clearly that flood protection is the overarching issue for New Orleans. A flood protection plan that reduces the vulnerability and length of flooding would be the first and foremost step to mitigate the negative effects from climate-related hazards and enable speedy recovery. The findings cast doubt on the current coastal protection efforts and add to the current debate of whether coastal Louisiana will be sustainable or too costly to protect from further land loss and flooding given the threat of sea-level rise. Finally, a plan to help small businesses to return would also be an effective strategy for recovery, and the temporal window of opportunity that generates the greatest impacts would be the first 6∼9 months after the disaster.
Lam, Nina S N; Arenas, Helbert; Pace, Kelley; LeSage, James; Campanella, Richard
We analyzed the business reopening process in New Orleans after Hurricane Katrina, which hit the region on August 29, 2005, to better understand what the major predictors were and how their impacts changed through time. A telephone survey of businesses in New Orleans was conducted in October 2007, 26 months after Hurricane Katrina. The data were analyzed using a modified spatial probit regression model to evaluate the importance of each predictor variable through time. The results suggest that the two most important reopening predictors throughout all time periods were the flood depth at the business location and business size as represented by its wages in a logarithmic form. Flood depth was a significant negative predictor and had the largest marginal effects on the reopening probabilities. Smaller businesses had lower reopening probabilities than larger ones. However, the nonlinear response of business size to the reopening probability suggests that recovery aid would be most effective for smaller businesses than for larger ones. The spatial spillovers effect was a significant positive predictor but only for the first nine months. The findings show clearly that flood protection is the overarching issue for New Orleans. A flood protection plan that reduces the vulnerability and length of flooding would be the first and foremost step to mitigate the negative effects from climate-related hazards and enable speedy recovery. The findings cast doubt on the current coastal protection efforts and add to the current debate of whether coastal Louisiana will be sustainable or too costly to protect from further land loss and flooding given the threat of sea-level rise. Finally, a plan to help small businesses to return would also be an effective strategy for recovery, and the temporal window of opportunity that generates the greatest impacts would be the first 6∼9 months after the disaster.
Warren, Jacob C; Smalley, K Bryant; Barefoot, K Nikki
The purpose of the current study was to examine the overall presence of and differences in rates of overweight/obesity among a large, nationally diverse sample of lesbian, gay, bisexual, transgender (LGBT)-identified individuals (i.e., cisgender lesbians, cisgender gay men, cisgender bisexual women, cisgender bisexual men, transgender women, and transgender men) and to identify specific psychosocial predictors of obesity within each of the six LGBT subgroups. A total of 2702 LGBT-identified participants participated in the online study. Participants completed a series of demographic questions (including weight and height) and the Depression Anxiety Stress Scale 21. The percentage of participants who were overweight/obese did not differ significantly across LGBT subgroups, with 61.1% of the total sample being overweight/obese. However, the percentage of participants who self-reported body mass indexes in the obese range differed significantly across the six LGBT subgroups, with the highest prevalence in transgender men (46.0%). In addition, the predictors of obesity varied by subgroup, with age a significant predictor for cisgender lesbians, cisgender gay men, and cisgender bisexual women, relationship status for cisgender bisexual women, employment status for both cisgender gay men and cisgender bisexual women, education level for cisgender lesbians, and depression, anxiety, and stress for cisgender gay men. None of the examined psychosocial factors emerged as predictors of obesity for cisgender bisexual men, transgender women, or transgender men. These findings suggest that there are substantial variations in the presence and predictors of obesity across LGBT subgroups that support the need for culturally tailored healthy weight promotion efforts within the LGBT community.
Rhodes, Ryan E; Quinlan, Alison
Regular physical activity (PA) is foundational to human health, yet most people are inactive. A sound understanding of the determinants of PA may be instructive for building interventions and/or identifying critical target groups to promote PA. Most research on PA correlates has been biased by cross-sectional or passive prospective designs that fail to examine within-person analysis of PA change. The purpose of this review was to collect and appraise the available literature on the predictors of PA change conceived broadly in terms of increases/decreases from baseline assessment as well as specifically in terms of adoption and maintenance. Eligible studies were from English, peer-reviewed published articles that examined predictors of natural change of PA over 3 months + using observational (non-experimental) data in adult samples. Searches were performed from June 2012 to January 2014 in eight databases. Sixty-seven independent data-sets, from 12 countries, primarily of medium quality/risk of bias, were identified with 26 correlates spanning demographic, behavioral, intra-individual, inter-individual, and environmental categories. Only intention and the onset of motherhood could reliably predict overall PA change. Among datasets configured to predict PA adoption, affective judgments and behavioral processes of change were the only reliable predictors, although both only have a small number of available studies. There were no reliable predictors of maintenance when compared to PA relapse. The results underscore the importance of individual-level motivation and behavioral regulation in PA change, but also denote critical social variables. These findings, however, are constrained by PA measurement bias and limited studies that employed time-varying covariation between predictor variables and PA.
Crespo, Luis Guillermo
This paper presents a framework for calibrating computational models using data from sev- eral and possibly dissimilar validation experiments. The offset between model predictions and observations, which might be caused by measurement noise, model-form uncertainty, and numerical error, drives the process by which uncertainty in the models parameters is characterized. The resulting description of uncertainty along with the computational model constitute a predictor model. Two types of predictor models are studied: Interval Predictor Models (IPMs) and Random Predictor Models (RPMs). IPMs use sets to characterize uncer- tainty, whereas RPMs use random vectors. The propagation of a set through a model makes the response an interval valued function of the state, whereas the propagation of a random vector yields a random process. Optimization-based strategies for calculating both types of predictor models are proposed. Whereas the formulations used to calculate IPMs target solutions leading to the interval value function of minimal spread containing all observations, those for RPMs seek to maximize the models' ability to reproduce the distribution of obser- vations. Regarding RPMs, we choose a structure for the random vector (i.e., the assignment of probability to points in the parameter space) solely dependent on the prediction error. As such, the probabilistic description of uncertainty is not a subjective assignment of belief, nor is it expected to asymptotically converge to a fixed value, but instead it is a description of the model's ability to reproduce the experimental data. This framework enables evaluating the spread and distribution of the predicted response of target applications depending on the same parameters beyond the validation domain (i.e., roll-up and extrapolation).
O'Rourke, Norm; Heisel, Marnin J; Canham, Sarah L; Sixsmith, Andrew
Bipolar disorder (BD) carries the greatest risk of death by suicide of all psychiatric conditions as 25%-50% of those with BD will make one or more suicide attempt, and about 15% will intentionally end their lives. Among young adults with BD, substance misuse, medication non-adherence, age at onset, and comorbid psychiatric conditions each predict self-harm. It is currently unclear if these same factors or others predict suicide ideation among older adults with BD. We recruited a global sample of 220 older adults with BD over 19 days using socio-demographically targeted, social media advertising and online data collection (Mean = 58.50, SD = 5.42; range 50 to 81 years). Path analyses allowed us to identify direct and indirect predictors of suicide ideation among older adults with BD. Cognitive failures (perception, memory, and motor function), depressive symptoms, alcohol misuse, and dissatisfaction with life as direct predictors of suicide ideation; duration of BD symptoms and medication non-adherence emerged as indirect predictors. Of note, the significant impact of sleep on suicide ideation is indirect via depressive symptoms, cognitive failures, medication non-adherence and life dissatisfaction. As with young adults with BD, alcohol misuse and medication non-adherence emerged as significant predictors of suicide ideation. In addition, cognitive failures directly and indirectly predict suicide ideation in this sample of older adults with BD. Population aging and treatment efficacy are leading to ever growing numbers of older adults with BD. Both direct and indirect predictors of suicide ideation need to be considered in future BD research and treatment planning.
Vesterager, Lone; Christensen, Torben Ø; Olsen, Birthe B
The predictors of functional capacity in first episode schizophrenia among seven separable cognitive domains and clinical variables are unknown.......The predictors of functional capacity in first episode schizophrenia among seven separable cognitive domains and clinical variables are unknown....
Drost, Amy Linden
This study examined predictors of school and life satisfaction of fifth-grade students. Two situational predictor variables (school climate and school stress) and two intrapersonal predictor variables (locus of control and academic self-concept) were examined. It was hypothesized that positive school climate, low levels of school stress, internal…
Schappin, Renske; Wijnroks, Lex; Uniken Venema, Monica; Jongmans, Marian
OBJECTIVE: Although predictors of the prevalence of behavioral problems in preterm-born children have been frequently studied, predictors of behavioral change in these children remain unknown. Therefore, in this study we explore predictors of short-term changes in problem behavior in preterm-born
Full Text Available The Smith-predictor is a well-known control structure for industrial time delay systems, where the basic idea is to estimate the non-delayed process output by use of a process model, and to use this estimate in an inner feedback control loop combined with an outer feedback loop based on the delayed estimation error. The model used may be either mechanistic or identified from input-output data. The paper discusses improvements of the Smith-predictor for systems where also secondary process measurements without time delay are available as a basis for the primary output estimation. The estimator may then be identified also in the common case with primary outputs sampled at a lower rate than the secondary outputs. A simulation example demonstrates the feasibility and advantages of the suggested control structure.
Full Text Available The ways in which couples in South Europe manage their money has received little attention. This study uses regression analysis to evaluate the allocative systems of Portuguese couples and their predictors. To do this we use a sample of 3,331 households in Portugal with at least one heterosexual couple. Couples' allocative systems were classified based on Pahl's typology. The results confirm what has been found in previous studies regarding the prevalence of joint pooling management and the predictors of the different models for managing money. However, some particularities have been found: decisions taken in multi-generational familes favour partial joint pooling, as the distinctive characteristics of households in South Europe play a role in assigning intra-family resources.
Petraitis, J; Flay, B R; Miller, T Q; Torpy, E J; Greiner, B
This paper reviews findings from 58 prospective studies of illicit substance use (ISU) among adolescents. It arranges 384 findings according to three types of influence (viz., social, attitudinal, and intrapersonal) and four levels of influence (viz., ultimate, distal, proximal, and immediate). The bulk of evidence reconfirms the importance of several predictors of ISU (e.g., intentions and prior substance-related behavior, friendship patterns and peer behaviors, absence of supportive parents, psychological temperament), reveals that a few variables thought to be well-established predictors may not be (e.g., parental behaviors, parental permissiveness, depression, low self-esteem), and uncovers several variables where findings were either sparse or inconsistent (e.g., the role of public policies concerning ISU, mass media depictions of ISU, certain parenting styles, affective states, perceptions of parental disapproval for ISU, and substance-specific refusal skills). Directions for future research are discussed.
Janine Kieling Monteiro
Full Text Available This research aims at identifying sociodemographic and laboral predictors of burnout syndrome in 182 health workers in the hospital setting. It uses a questionnaire, Maslach Burnout Inventory, and a working context scale. In the analysis of the data a multiple regression analysis was employed. Interviewees' considering their profession as stressful was the most revealing variable with regards to the Emotional Exhaustion dimension and the low level of Professional Efficacy. As predictor variables to Cynicism the research points to negative working environments, stress upon dealing with male patients. The risk profile for burnout syndrome includes higher schooled professionals, old-timers and those who perceive their job, work scale, type and quantity of patients as stressing factors.
Alessandra Salina Brandão
Full Text Available Abstract: Not completing the undergraduate course in the time expected in the curricula can put the universities and students at a disadvantage, with a delay to enter the labor market. The aim was to identify predictors of graduation, considering social skills, mental health, initial academic performance and socio-demographic and academic characteristics. In total, 287 students participated, of both genders and fromthe humanities, exact and biological areas, who answered the instruments: Social Skills, Behaviors and Context Assessment Questionnaire for University Students, Short version of the Social Phobia Inventory, Beck Depression Inventory, and Structured Clinical Interview for DSM-IV. Predictors were: female, humanities area and average or above-average initial academic performance. The social skills and mental health differentiated the groups in the univariate analyses. This data suggests a need for attention to academic performance in the initial stages of the course, and preventive measures for male students of the exact and biological areas.
Robinson, Shane; Scarritt, Sara; Goodman, John L.
The state vector prediction algorithm selected for Orion on-board targeting and guidance is known as the Encke-Beta method. Encke-Beta uses a universal anomaly (beta) as the independent variable, valid for circular, elliptical, parabolic, and hyperbolic orbits. The variable, related to the change in eccentric anomaly, results in integration steps that cover smaller arcs of the trajectory at or near perigee, when velocity is higher. Some burns in the EM-1 and EM-2 mission plans are much longer than burns executed with the Apollo and Space Shuttle vehicles. Burn length, as well as hyperbolic trajectories, has driven the use of the Encke-Beta numerical predictor by the predictor/corrector guidance algorithm in place of legacy analytic thrust and gravity integrals.
Hagström, Katja; Jacobsen, Gitte; Sigsgaard, Torben; Schaumburg, Inger; Erlandsen, Mogens; Schlunssen, Vivi
Individuals who work with pine in the furniture industry may be exposed to monoterpenes, the most abundant of which are α-pinene, β-pinene, and Δ(3)-carene. Monoterpenes are suspected to cause dermatitis and to harm the respiratory system. An understanding of the predictors of monoterpene exposure is therefore important in preventing these adverse effects. These predictors may include general characteristics of the work environment and specific work operations. We sought to assess the extent to which workers are exposed to monoterpenes and to identify possible predictors of monoterpene exposure in the pine furniture industry in Denmark. Passive measurements of the levels of selected monoterpenes (α-pinene, β-pinene, and Δ(3)-carene) were performed on 161 subjects from 17 pine furniture factories in Viborg County, Denmark; one sample was acquired from each worker. Additionally, wood dust samples were collected from 145 workers. Data on potential predictors of exposure were acquired over the course of the day on which the exposure measurements were recorded and could be assigned to one of four hierarchic ordered levels: worker, machine, department, and factory. In addition to univariate analyses, a mixed model was used to account for imbalances within the data and random variation with each of the hierarchically ordered levels. The geometric mean (GM) monoterpene content observed over the 161 measurements was 7.8 mg m(-3) [geometric standard deviation (GSD): 2.4]; the GM wood dust level over 145 measurements was 0.58 mg m(-3) (GSD: 1.49). None of the measured samples exceeded the occupational exposure limit for terpenes in Denmark (25 ppm, 150 mg m(-3)). In the univariate analyses, half of the predictors tested were found to be significant; the multivariate model indicated that only three of the potential predictors were significant. These were the recirculation of air in rooms used for the processing of wood (a factory level predictor), the presence of a
Melissa Bittencourt Jaeger
Full Text Available Body dissatisfaction can contribute to social, occupational and recreational losses, constituting a risk factor to health. This study aimed to evaluate the predictors of body dissatisfaction regarding demographic variables, media and life satisfaction among university students. The sample consisted of 321 participants older than 18 years. Body dissatisfaction, life dissatisfaction and media messages internalization were evaluated by Escala de Silhuetas para Adultos Brasileiros, Subjective Well-Being Scale and Sociocultural Attitudes Towards Appearance Questionnaire-3, respectively. Data were collected by an online survey tool (SurveyMonkey® and were analyzed using multiple linear regression. It was found that body dissatisfaction was positively related to inaccuracy in the perception of body size, Body Mass Index, life dissatisfaction, media messages internalization and television exposure. These findings evidence the importance of these predictors in the dynamics of body dissatisfaction, which support the development of preventive and treatment interventions.
Adelino António Gonçalves Pereira
Full Text Available ABSTRACT The present study aims to identify psychological predictors of suicidal ideation in university students. We collected a sample of 366 participants, representing a population of 7102 students from a university in northern Portugal (95% CI. Both in the whole sample and in the intra-gender analysis, students with suicidal ideation revealed higher levels of depressive symptoms, loneliness, social anxiety and fears of abandonment, and lower levels of comfort with intimacy and trust in others. Loneliness and depression are significant predictors of suicidal ideation, with an odds ratio of 1.095 and 1.108, respectively. The results were consistent with those found in the literature, and call for more research and implementation of intervention protocols in university populations.
Full Text Available The study examined the importance of cognitive (positive orientation, basic hope and emotional (positive and negative affectivity, emotional control variables for state and trait forgiveness. One hundred and thirty nine participants completed six inventories in Polish version: HFS (Thompson et al., 2005, TRIM (McCullough et al., 1998, P-Scale (Caprara et al., 2012, BHI-12 (Trzebiński & Zięba, 2003a, SUPIN (Polish version of PANAS; Watson, Clark, & Tellegen, 1988, CECS (Watson & Greer, 1983. Results showed that dispositional forgiveness (general and positive was associated with cognitive and emotional predictors, whereas episodic forgiveness primarily with certain emotional variables. In addition, the results indicated that emotional predictors merely participate in the process of reducing unforgiveness, whereas cognitive and emotional variables were shown to be necessary for full forgiveness.
Ahamed, M F; Verma, P; Lee, S; Vega, M; Wang, D; Kim, M; Fuloria, M
To determine whether platelet counts can predict the likelihood of successful closure of patent ductus arteriosus (PDA) with indomethacin. This was a retrospective cohort study of infants closure with indomethacin and those who failed were compared. Multivariable logistic regression was used to identify predictors of successful ductal closure. In infants with hemodynamically significant PDA, older GA (odds ratio=1.54; 95% confidence interval: 1.12 to 2.13), male gender (odds ratio=3.02; 95% confidence interval: 1.08 to 8.49) and higher platelet count (odds ratio=1.5; 95% confidence interval: 1.04 to 2.17) prior to indomethacin treatment were associated with successful ductal closure with indomethacin. Older GA, male gender and higher platelet count at time of treatment of hemodynamically significant PDA are predictors of successful ductal closure with indomethacin.
Kammersgaard, Lars Peter; Olsen, Tom Skyhøj
Poststroke epilepsy (PSE) is a feared complication after stroke and is reported in 3% to 5% of stroke survivors. In this study we sought to identify incidence and predictors of PSE in an unselected stroke population with a follow-up period of 7 years. The study was community-based and comprises...... a cohort of 1197 consecutively and prospectively admitted patients with stroke. Patients were followed up for 7 years. We defined PSE as recurrent epileptic seizures with onset after stroke and requiring antiepileptic prophylaxis. PSE was related to clinical factors (age, sex, onset stroke severity, lesion...... size on computed tomography scans, stroke subtype, localization, stroke risk factor profile, and early seizures) in univariate analyses. Independent predictors of PSE were identified through multiple logistic regression analyses. Overall, 38 patients (3.2%) developed PSE. Univariately, PSE...
Riddalls, C.E.; Bennett, S.
The concept of bounded rationality in decision making and research on its relegation to aggregate system dynamics is examined. By recasting one such example of a dynamic system, the Beer Game, as a Smith predictor control system is derived. A stability analysis is then employed to support the and qualify the assertion that the level of bounded rationality can adversely affect the aggregate dynamic behaviour of such supply chains. The analytical basis of these calculations enables the qualific...
Merlin Garí Llanes
Full Text Available In recent decades, there has been an increased interest in the identification of cardiovascular disease and the factors that predispose its development in children and adolescents. In this sense, significant risk predictors have been cited, such as the presence of family and personal medical history, genetic predisposition, and the alteration of anthropometric and biochemical markers. The understanding of these factors is crucial to prevent the early onset of cardiovascular disease.
David Álvarez-García; Trinidad García; Alejandra Barreiro-Collazo; Alejandra Dobarro; Ángela Antúnez
Antisocial behavior is strongly associated with academic failure in adolescence. There is a solid body of evidence that points to parenting style as one of its main predictors. The objective of this work is to elaborate a reduced, valid, and reliable version of the questionnaire by Oliva et al. (2007) to evaluate the dimensions of parenting style and to analyze its psychometric properties in a sample of Spanish adolescents. To that end, the designed questionnaire was applied to 1974 adolescen...
Full Text Available A longitudinal study of Canadian grain elevator workers over a 12-year period was conducted. Data on respiratory symptoms and pulmonary function tests were collected once every three years as part of the Grain Dust Medical Surveillance Program started by Labour Canada in 1978; each three-year interval was called a 'cycle'. Of workers who had two or more observations, 1848 subjects (67.2% were free of respiratory symptoms (wheeze, dyspnea, cough or sputum at the baseline (cycle II. Predictors of first episode of wheezing were examined in these symptoms-free grain workers. Baseline mean age ± SD of the grain workers was 34.0±11.4 years and mean duration of work in the industry was 9.9±8.7 years. Of the 1848 symptoms-free grain workers at cycle II, 203 (11.0% subsequently reported wheezing during the study. Cox's proportional hazards model for analysis of survival data was used to determine significant predictors of first episode of wheezing. Significant predictors for first episode of wheezing were current smoking (relative risk [RR] 2.33; 95% CI 1.63 to 3.33; P<0.0001 and baseline forced expiratory volume in 1 s to forced vital capacity ratio [RR 0.02; 95% CI 0.003 to 0.20; P<0.0001. Baseline pulmonary function measurements and smoking habits appear to be important predictors of future development of asthma-like symptoms in grain elevator workers.
Antonella Cavallo; Antonio Ribba
The stability of inflation differentials is an important condition for the smooth working of a currency area, such as the European Economic and Monetary Union. In the presence of stability, changes in national inflation rates, while holding Euro-area inflation fixed contemporaneously, should be only transitory. If this is the case, the rate of inflation of the whole area can also be interpreted as a predictor, at least in the long run, of the different national inflation rates. However, in th...
Vainik, Uku; Dub?, Laurette; Lu, Ji; Fellows, Lesley K.
Introduction A consistent eating style might be beneficial to avoid overeating in a food-rich environment. Eating consistency entails maintaining a similar dietary pattern across different eating situations. This construct is relatively under-studied, but the available evidence suggests that eating consistency supports successful weight maintenance and decreases risk for metabolic syndrome and cardiovascular disease. Yet, personality and situation predictors of consistency have not been studi...
Mohammad Hasan Kargar Maher; Parinaz Habibi; Nemat Bilan
IntroductionChildren with severe asthma attack are a challenging group of patients who could be difficult to treat and leading to significant morbidity and mortality. Asthma attack severity is qualitatively estimated as mild, moderate and severe attacks and respiratory failure based on conditions such as respiration status, feeling of dyspnea, and the degree of unconsciousness. part of which are subjective rather than objective. We investigated clinical findings as predictors of severe attack...
Cramer, Holger; Lauche, Romy; Langhorst, Jost; Paul, Anna; Michalsen, Andreas; Dobos, Gustav
Yoga seems to be an effective means to cope with a variety of internal medicine conditions. While characteristics of yoga users have been investigated in the general population, little is known about predictors of yoga use and barriers to yoga use in internal medicine patients. The aim of this cross-sectional analysis was to identify sociodemographic, clinical, and psychological predictors of yoga use among internal medicine patients. A cross-sectional analysis was conducted among all patients being referred to a Department of Internal and Integrative Medicine during a 3-year period. It was assessed whether patients had ever used yoga for their primary medical complaint, the perceived benefit, and the perceived harm of yoga practice. Potential predictors of yoga use including sociodemographic characteristics, health behavior, internal medicine diagnosis, general health status, mental health, satisfaction with health, and health locus of control were assessed; and associations with yoga use were tested using multiple logistic regression analysis. Odds ratios (OR) with 95% confidence intervals (CI) were calculated for significant predictors. Of 2486 participants, 303 (12.19%) reported having used yoga for their primary medical complaint. Of those, 184 (60.73%) reported benefits and 12 (3.96%) reported harms due to yoga practice. Compared to yoga non-users, yoga users were more likely to be 50-64 years old (OR = 1.45; 95%CI = 1.05-2.01; P = 0.025); female (OR = 2.45; 95%CI = 1.45-4.02; P internal health locus of control (OR = 1.92; 95%CI = 1.38-2.67; P internal integrative medicine patient population and was commonly perceived as beneficial. Yoga use was not associated with the patients' specific diagnosis but with sociodemographic factors, mental health, and health locus of control. To improve adherence to yoga practice, it should be considered that male, younger, and anxious patients and those with low internal health locus of control might be less intrinsically
Schmid, Wiebke; Knechtle, Beat; Knechtle, Patrizia; Barandun, Ursula; Rüst, Christoph Alexander; Rosemann, Thomas; Lepers, Romuald
Purpose We intended to determine predictor variables of anthropometry and training for marathon race time in recreational female runners in order to predict marathon race time for future novice female runners. Methods Anthropometric characteristics such as body mass, body height, body mass index, circumferences of limbs, thicknesses of skin-folds and body fat as well as training variables such as volume and speed in running training were related to marathon race time using bi- and multi-varia...
, with opportunities to study at colleges and universities outside Ladakh. As a result, a large number of young Ladakhis pursue higher education outside Ladakh, while dealing with intense competition, heightened expectations and academic demands. This paper explores the links between one’s background and mental health......, amongst Ladakhi college students studying in Leh and Delhi. Statistical analysis reveals that gender and parental level of education are significant predictors of anxiety and depression levels....
Garaigordobil, Maite; Bernar?s, Elena; Jaureguizar, Joana; Machimbarrena, Juan M.
The study had two goals: (1) to explore the relations between self-assessed childhood depression and other adaptive and clinical variables (2) to identify predictor variables of childhood depression. Participants were 420 students aged 7–10 years old (53.3% boys, 46.7% girls). Results revealed: (1) positive correlations between depression and clinical maladjustment, school maladjustment, emotional symptoms, internalizing and externalizing problems, problem behaviors, emotional reactivity, and...
Student burnout and engagement have become more evident as a problem among students in higher education institutions. It is therefore very important to determine the various predictors that could cause students to experience burnout and engagement. The aim of this study is to establish whether core self–evaluation traits, career decision–making difficulty and social support have an impact on burnout and engagement of students. A limited number of research has been done on student burnout and ...
Gábor eOrosz; Gábor eOrosz; Gábor eOrosz; Dávid eFarkas; Dávid eFarkas; Dávid eFarkas; Christine eRoland-Levy
Previous studies suggest that extrinsic motivation and competition are reliable predictors of academic cheating. The aim of the present questionnaire study was to separate the effects of motivation- and competition-related variables on academic cheating by Hungarian high school students (N = 620, M = 264, F = 356). Structural equation modeling showed that intrinsic motivation has a negative effect, and amotivation has a positive indirect effect on self-reported academic cheating. In contrast,...
Dekker, Sanne; Lee, Nikki C.; Howard-Jones, Paul; Jolles, Jelle
The OECD's Brain and Learning project (2002) emphasized that many misconceptions about the brain exist among professionals in the field of education.Though these so-called "neuromyths" are loosely based on scientific facts, they may have adverse effects on educational practice.The present study investigated the prevalence and predictors of neuromyths among teachers in selected regions in the United Kingdom and the Netherlands. A large observational survey design was used to assess general kno...
Full Text Available Background: Total fertility rate (TFR reflecting population growth is closely related to higher order parity progression. Many Indian states reached replacement level of TFR, but still states constituting nearly 40% population are with TFR ≥ 3. The predictors are the desire of son’s, poor contraceptives practices, younger age at marriage, child loss and shorter birth spacing. Objective: This analysis assessed the degree of relation of 3rd and higher order parity progression with the above mentioned predictors. Material and Methods: State/Union Territories wise proportions of women: progressing to ≥3 births, more sons desire, birth spacing <24 months, adopting modern contraception and median marriage age <18 years along with infant mortality rate (IMR were taken from NFHS-III report. Correlation matrix and stepwise forward multiple regression carried. Significance was seen at 5%. Results: Hindi speaking states constituting 38.92% nation population recorded TFR ≥3. Positive correlation of mothers progressing ≥ 3 births was highest (0.746 with those desiring more sons followed by IMR (0.445; while maximum negative correlation with those practicing modern contraceptives (-0.565 followed by median age at marriage (-0.391. Multiple regression analysis in order identified desire of more sons, practicing modern contraception and shorter birth spacing as the significant predictors and jointly explained 77.9% of the total variation with gain of 15.5% by adding modern contraceptive practice and 8.3% by adding shorter birth spacing. Conclusions: Desire of more sons appeared the most important predictor to progress ≥3 births that is governed by society culture and educational attainment, require attitudinal change. Further, mothers need motivation to practice both spacing and terminal methods once family is complete.
Orosz, G?bor; Farkas, D?vid; Roland-L?vy, Christine
Previous studies suggest that extrinsic motivation and competition are reliable predictors of academic cheating. The aim of the present questionnaire study was to separate the effects of motivation- and competition-related variables on academic cheating by Hungarian high school students (N = 620, M = 264, F = 356). Structural equation modeling showed that intrinsic motivation has a negative effect, and amotivation has a positive indirect effect on self-reported academic cheating. In contrast,...
Full Text Available In this paper procedure for researching hidden influence of predictor variables in regression models and depicting suppressor variables and mediator variables is shown. It is also shown that detection of suppressor variables and mediator variables could provide refined information about the research problem. As an example for applying this procedure, relation between Atlantic atmospheric centers and air temperature and precipitation amount in Serbia is chosen. [Projekat Ministarstva nauke Republike Srbije, br. 47007
Full Text Available Background. The present research is carried out in the context of the conscious self-regulation of professional activity. Objective. It investigates the regulatory and personality predictors of reliability in rescue operations under stressful conditions. Design. The research sample includes 87 rescuers (72 men and 15 women aged from 25 to 50 years. Respondents were asked to complete the Morosanova’s Self-Regulation Profile Questionnaire – SRPQM, the Eysenck Personality Profile - Short (EPP-S, and the expert questionnaire “Professional Reliability of Rescue Operation” designed for this particular study. Results. On the basis of a correlation analysis, the structural model of the predictors of action reliability was constructed using the maximum likelihood method. Consistency indices showed a good agreement between the model and empirical data. The model contains three latent factors: “Self-regulation”, “Neuroticism” and “Reliability of actions”. As the model displays, the “Self-regulation” factor is a significant predictor of professional action reliability. There are two indicator variables for the factor “Self-regulation”: the self-regulation reliability considered as its stability in the stressful situations, and the rescuers’ levels of development of professionally critical regulatory features - modeling of conditions significant for the achievement of goals and the programming of actions. The study results also show that personality dispositions (by Eysenck have only indirect influence on action reliability. As the structural model reveals, the conscious self-regulation is a mediator in the relationship of neuroticism traits and action reliability. Conclusion. The conscious self-regulation is a significant predictor of professional action reliability under stressful conditions. It is also the mediator of the effects of personality dispositions on the reliability of action.
Mezzaroba, Paulo Victor; Papoti, Marcelo; Machado, Fabiana Andrade
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 max...
Ageing is a lifelong process and potential for development covers the whole life span. However people usually attach negativity to ageing and older adults. Ageist attitudes (ageism) are known to be devastating when directed towards older adults. Despite the prevalence of ageism very few empirical studies exist on ageing and ageism. This study aims to explore the possible predictors of ageism in university students. The sample consisted of 266 Turkish speaking students from Turkey. They were a...
Berg-Beckhoff, Gabriele; Østergaard, Helle; Jepsen, Jørgen Riis
at sea, age, BMI and education were used as predictors for the overall musculoskeletal pain score (multiple linear regression) and for each single pain site (multinomial logistic regression). RESULTS: The prevalence of pain was high for all musculoskeletal locations. Overall, more than 80...... demanding and impacting their musculoskeletal pain. Potential explanation for this unexpected result like increased work pressure and reduced financial attractiveness in small scale commercial fishery needs to be confirmed in future research....
Abbas Ali Zarei; Nima Shokri Afshar
Abstract: The present study was conducted to investigate types of Multiple Intelligences as predictors of reading comprehension and vocabulary knowledge. To meet this objective, a 60-item TOEFL test and a 90-item multiple intelligences questionnaire were distributed among 240 male and female Iranians studying English at Qazali and Parsian Universities in Qazvin. Data were analyzed using a multiple regression procedure. The result of the data analysis indicated that musical, interpersonal, kin...
Eriksen, Hanne-Lise Falgreen; Kesmodel, Ulrik Schiøler; Underbjerg, Mette
- Revised. Information on parental characteristics, pregnancy and birth factors, postnatal influences, and postnatal growth was collected during pregnancy and at follow-up. A model including study design variables and child's sex explained 7% of the variance in IQ, while parental education and maternal IQ...... are major predictors of IQ and should be included routinely in studies of cognitive development. Obstetrical and postnatal factors also predict IQ, but their contribution may be of comparatively limited magnitude....
Kimura, Atsushi; Shiraishi, Yasuyuki; Inoue, Hirokazu; Endo, Teruaki; Takeshita, Katsushi
Retrospective analysis of prospective data. The aim of this study was to reveal baseline predictors of persistent postlaminoplasty neck pain. Axial neck pain is one of the most common complications after cervical laminoplasty; however, baseline predictors of persistent postlaminoplasty neck pain are unclear. We analyzed data from 156 patients who completed a 2-year follow-up after double-door laminoplasty for degenerative cervical myelopathy. Patients rated the average intensity of axial neck pain in the last month using an 11-point numerical rating scale preoperatively and at the 2-year follow-up. The dependent variable was the presence of moderate-to-severe neck pain (numerical rating scale ≥4) at the 2-year follow-up. The independent variables included patient characteristics, baseline radiological parameters, surgical variables, baseline axial neck pain intensity, and baseline functions, which were measured by the Japanese Orthopaedic Association score and the Short Form-36 survey (SF-36). Logistic regression analysis was performed to identify independent predictors of moderate-to-severe neck pain after laminoplasty. At the 2-year follow-up, 51 patients (32%) had moderate-to-severe neck pain, and 106 patients (68%) had no or mild pain. Univariate analysis revealed that the ratio of cervical anterolisthesis, ratio of current smoking, baseline neck pain intensity, and baseline SF-36 Mental Component Summary differed significantly between the groups. Multivariate logistic regression analysis showed that independent predictors of moderate-to-severe neck pain at the 2-year follow-up include the presence of anterolisthesis, current smoking, moderate-to-severe baseline neck pain, and lower SF-36 Mental Component Summary. The presence of anterolisthesis and moderate-to-severe baseline neck pain were also associated with significantly poorer physical function after surgery. The presence of anterolisthesis was associated not only with the highest odds ratio of
Crenitte, Milton Roberto Furst; Avelino-Silva, Thiago Junqueira; Apolinario, Daniel; Curiati, Jose Antonio Esper; Campora, Flavia; Jacob-Filho, Wilson
Despite general recognition that enteral tube feeding (ETF) is frequently employed in long-term care facilities and patients with dementia, remarkably little research has determined which factors are associated with its use in acutely ill older adults. In this study, we aimed to investigate determinants of ETF introduction in hospitalized older adults. We examined a retrospective cohort of acutely ill patients, aged 60 years and older, admitted to a university hospital's geriatric ward from 2014-2015, in São Paulo, Brazil. The main outcome was the introduction of ETF during hospitalization. Predictors of interest included age, sex, referring unit, comorbidity burden, functional status, malnutrition, depression, dementia severity, and delirium. Multivariate analysis was performed using backward stepwise logistic regression. A total of 214 cases were included. Mean age was 81 years, and 63% were women. Malnutrition was detected in 47% of the cases, dementia in 46%, and delirium in 36%. ETF was initiated in 44 (21%) admissions. Independent predictors of ETF were delirium (odds ratio [OR], 4.83; 95% CI, 2.12-11.01; P ETF. One in five acutely ill older adults used ETF while hospitalized. Delirium and functional dependency were independent predictors of its introduction. Risks and benefits of enteral nutrition in this particular context need to be further explored.
Smith George H
Full Text Available Abstract Background Not all patients gain the same degree of improvement from total hip replacement and the reasons for this are not clear. Many investigators have assessed predictors of general outcome after hip surgery. This study is unique in its quest for the predictors of the best possible early outcome. Methods We prospectively collected data on 1318 total hip replacements. Prior to surgery patient characteristics, demographics and co-morbidities were documented. Hip function and general health was assessed using the Harris Hip score (HHS and the Short-Form 36 respectively. The HHS was repeated at three years. We took a maximal HHS of 100 to represent an excellent outcome (102 patients. Multiple logistic regression analysis was used to identify independent predictors of excellent outcome. Results The two strongest predictive factors in achieving an excellent result were young age and a high pre-operative HHS (p = 0.001. Conclusions It was the young and those less disabled from their arthritis that excelled at three years. When making a decision about the timing of hip arthroplasty surgery it is important to take into account the age and pre-operative function of the patient. Whether these patients continue to excel however will be the basis of future research.
Kwon, Ahye; Song, Jungeun; Yook, Ki-Hwan; Jon, Duk-In; Jung, Myung Hun; Hong, Narei; Hong, Hyun Ju
We examined predictors of suicide attempts in clinically depressed adolescents in Korea and gender differences in suicidal behavior. In total, 106 adolescents diagnosed with depressive disorder were recruited in South Korea. We assessed various variables that might affect suicide attempts, and used a structured interview for the diagnosis of depression and comorbidities and to evaluate suicidality. Demographic and clinical characteristics of the subjects were compared between suicide attempt and non-suicide attempt groups and we examined significant predictors of suicide attempts. Gender differences in suicidal ideation and suicidal behavior were also analyzed. Among 106 depressed participants, 50 (47.2%) adolescents were classified in the suicide attempt group. Generally, the suicide attempt and non-suicide attempt group shared similar clinical characteristics. The suicide attempt group had more females, more major depressive disorder diagnoses, more depressive episodes, and higher suicidal ideation than the non-suicide attempt group. Suicidal ideation was the only significant predictor of suicidal attempt, regardless of gender. Higher suicidal ideation frequency scores and more non-suicidal self-injurious behaviors were shown in the female suicide attempt group than the male suicide attempt group. It is recommended that suicidal ideation be assessed regularly and managed rigorously to decrease suicide risks in depressive adolescents. PMID:27776392
Full Text Available The study objectives were to identify predictors of outcome in patients with inflammatory dilated cardiomyopathy (DCMi.From 2004 to 2008, 55 patients with biopsy-proven DCMi were identified and followed up for 58.2±19.8 months. Predictors of outcome were identified in a multivariable analysis with a Cox proportional hazards analysis. The primary endpoint was a composite of death, heart transplantation and hospitalization for heart failure or ventricular arrhythmias.For the primary endpoint, a QTc interval >440msec (HR 2.84; 95% CI 1.03-7.87; p = 0.044, a glomerular filtration rate (GFR 440msec, a GFR<60ml/min/1.73m2 and worsening of NYHA classification during follow-up were univariate predictors of adverse prognosis. In contrast, NYHA classification at baseline, left ventricular ejection fraction, atrial fibrillation, treatment with digitalis or viral genome detection were not related to outcome. After multivariable analysis, a GFR <60ml/min/1.73m2 remained independently associated with adverse outcome.
Full Text Available Weight loss from exercise-induced energy deficits is usually less than expected. The objective of this systematic review was to investigate predictors of energy compensation, which is defined as body energy changes (fat mass and fat-free mass over the total amount of exercise energy expenditure. A search was conducted in multiple databases without date limits. Of 4745 studies found, 61 were included in this systematic review with a total of 928 subjects. The overall mean energy compensation was 18% ± 93%. The analyses indicated that 48% of the variance of energy compensation is explained by the interaction between initial fat mass, age and duration of exercise interventions. Sex, frequency, intensity and dose of exercise energy expenditure were not significant predictors of energy compensation. The fitted model suggested that for a shorter study duration, lower energy compensation was observed in younger individuals with higher initial fat mass (FM. In contrast, higher energy compensation was noted for younger individuals with lower initial FM. From 25 weeks onward, energy compensation was no longer different for these predictors. For studies of longer duration (about 80 weeks, the energy compensation approached 84%. Lower energy compensation occurs with short-term exercise, and a much higher level of energy compensation accompanies long-term exercise interventions.
Ridley, Barbara; Boland, John [Centre for Industrial and Applied Mathematics, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, SA 5095 (Australia); Lauret, Philippe [Laboratoire de Physique du Batiment et des Systemes, University of La Reunion, Reunion (France)
For some locations both global and diffuse solar radiation are measured. However, for many locations, only global radiation is measured, or inferred from satellite data. For modelling solar energy applications, the amount of radiation on a tilted surface is needed. Since only the direct component on a tilted surface can be calculated from direct on some other plane using trigonometry, we need to have diffuse radiation on the horizontal plane available. There are regression relationships for estimating the diffuse on a tilted surface from diffuse on the horizontal. Models for estimating the diffuse on the horizontal from horizontal global that have been developed in Europe or North America have proved to be inadequate for Australia. Boland et al. developed a validated model for Australian conditions. Boland et al. detailed our recent advances in developing the theoretical framework for the use of the logistic function instead of piecewise linear or simple nonlinear functions and was the first step in identifying the means for developing a generic model for estimating diffuse from global and other predictors. We have developed a multiple predictor model, which is much simpler than previous models, and uses hourly clearness index, daily clearness index, solar altitude, apparent solar time and a measure of persistence of global radiation level as predictors. This model performs marginally better than currently used models for locations in the Northern Hemisphere and substantially better for Southern Hemisphere locations. We suggest it can be used as a universal model. (author)
van der Velden, Peter G; Bosmans, Mark W G; van der Meulen, Erik
To examine predictors of repeated confrontations with workplace violence among ambulance personnel, the proportion of exposure to potentially traumatic events that are aggression-related and to what extent personnel was able to prevent escalations. Although previous research assessed the prevalences among this group, little is known about predictors, to what extent PTE's are WPV-related and their abilities to prevent escalations. A longitudinal study with a 6 months' time interval ( N = 103). At T1 demographics, workplace violence and potentially traumatic events in the past year, mental health, personality, handling of rules, coping and social organizational stressors were assessed. Confrontations with aggression were also examined at T2. Multivariate logistic regression analyses showed that only problems with superiors independently predicted repeated verbal aggression and that only the (absence of the) ability to compromise very easily predicted repeatedly being on guard and repeatedly confronted with any form of aggression. Due to very low prevalences, we could not examine predictors of repeated confrontations with physical aggression ( N = 5) and serious threat ( N = 7). A large majority reported that in most workplace violence cases they could prevent further escalations. About 2% reported a potentially traumatic event in the year before T1 that was WPV related and perceived as very stressful.
Hampras, S. S.; Nesline, M.; Davis, W.; Moysich, K. B.; Wallace, P. K.; Odunsi, K.; Furlani, N.
Immunosuppressive regulatory T (Treg) cells play an important role in antitumor immunity, self-tolerance, transplantation tolerance, and attenuation of allergic response. Higher proportion of Treg cells has been observed in peripheral blood of cancer cases compared to controls. Little is known about potential epidemiological predictors of Treg cell levels in healthy individuals. We conducted a cross-sectional study including 75 healthy women, between 20 and 80 years of age, who participated in the Data Bank and Bio Repository (DBBR) program at Roswell Park Cancer Institute (RPCI), Buffalo, NY, USA. Peripheral blood levels of CD4 + CD25 + FOXP3 + Treg cells were measured using flow cytometric analysis. A range of risk factors was evaluated using Wilcoxon Rank-Sum test, Kruskal-Wallis test, and linear regression. Age, smoking, medications for treatment of osteoporosis, postmenopausal status, body mass index (BMI), and hormone replacement therapy (HRT) were found to be significant positive predictors of Treg cell levels in peripheral blood (π≤0.05 ). Higher education, exercise, age at first birth, oral contraceptives, and use of Ibuprofen were found be significant (π<0.05) negative predictors of Treg levels. Thus, various epidemiological risk factors might explain interindividual variation in immune response to pathological conditions, including cancer.
Wang, Xiao Qin; Petrini, Marcia A; Morisky, Donald E
This study was designed to investigate the association of quality of life, perceived stigma, and medication adherence among Chinese patients with schizophrenia, and to ascertain the predictors of quality of life. A cross-sectional correlation study was conducted with 146 participants. All participants completed self-report scales: the Schizophrenia Quality of Life Scale, Link's Stigma Scale, and the Morisky Medication Adherence Scale. Pearson parametric correlations and stepwise multiple regressions were performed. The total quality of life score and psychosocial subscale was significantly positively correlated with perceived stigma, coping orientation of withdrawal, and feelings of stigma, and negatively correlated with age and medication adherence. The means of all subscale scores except perceived devaluation-discrimination and different/guilty feelings were significantly higher than the midpoint of 2.5. The best predictors of quality of life and psychosocial domains were stigma-related feelings: feeling misunderstood, feeling different/shame, and age. Our findings suggest that an individual's negative emotional response may strengthen internalized stigma and decrease quality of life. As the best predictor, age indicated that adaptation to mental illness may relieve perceived stigma and achieve favorable quality of life. © 2016 John Wiley & Sons Australia, Ltd.
Mohammad Hasan Kargar Maher
Full Text Available IntroductionChildren with severe asthma attack are a challenging group of patients who could be difficult to treat and leading to significant morbidity and mortality. Asthma attack severity is qualitatively estimated as mild, moderate and severe attacks and respiratory failure based on conditions such as respiration status, feeling of dyspnea, and the degree of unconsciousness. part of which are subjective rather than objective. We investigated clinical findings as predictors of severe attack and probable requirement for Pediatric Intensive Care Unit (PICU admission.Materials and MethodsIn a cross sectional and analytical study 120 patients with asthma attack were enrolled from April 2010 to April 2014 (80 admitted in the ward and 40 in pediatric intensive care unit. Predictors of PICU admission were investigated regarding to initial heart rate(HR, respiratory rate (RR, Arterial Oxygen Saturation(SaO2 and PaCo2 and clinically evident cyanosis.ResultsInitial heart rate(p-value=0.02, respiratory rate (p-value=0.03, Arterial Oxygen Saturation(p-value=0.02 and PaCo2(p-value=0.03 and clinically evident cyanosis were significantly different in two groups(Ward admitted and PICU admittedConclusion There was a significant correlation between initial vital sign and blood gas analysis suggesting usefulness of these factors as predictors of severe asthma attack and subsequent clinical course.
Michailidis, Evie; Cropley, Mark
Research on the feeling of embitterment at work is still in its infancy. The present study investigated the predictors and consequences of the feeling of embitterment at work. It was hypothesised that organisational injustice as well as over-controlling supervision would predict embitterment at work and that embitterment would be associated with work-related rumination. Three hundred and thirty-seven employees completed an online survey. Regression analysis revealed that procedural injustice and over-controlling supervision were significant predictors of embitterment and that embitterment contributed significantly to the prediction of increased affective rumination and reduction in detachment. Mediation analysis indicated that embitterment at work was a significant mechanism through which organisational injustice and over-controlling supervision exerted their effect on affective rumination, which is indicative of insufficient recovery from work. Findings suggest that breaches in organisational justice can generate feelings of embitterment at work, which in turn can interfere with employees' ability to adequately recover from work. Practitioner Summary: The purpose of this study was to investigate predictors and consequences of embitterment in the workplace using an online questionnaire. Findings suggest that perceived unfairness, because of structural and organisational aspects, predicts feelings of embitterment and that feeling embittered at work can prevent employees from adequately recovering from work.
Full Text Available Background: The high-school grade point average ( GPA-H and university entrance examination can predict the university achievement and Purpose. To examine the predictive value of GPA-H for GPA-U Methods: In this cross sectional study, the subjects were 240 medical students at basic science phase of their medical education. Data were collected by a questionnaire, consisting of questions measuring factual background variable and 10 Llikert-type questions measuring attitude. The multiple regression analysis was used. Results: The analysis showed that student GPA were a better predictor for educational achievement of medical students than rank on university entrance exam and students with high GPA have not been on probation at all. Also parent's education and occupation influence the students' attitudes toward their medical study. Conclusion: High-school GPA is a predictor for university GPA .This may warrant further investigation into criteria of medical university entrance exam. Keywords: UNIVERSITY ACHIEVEMENT, HIGH-SCHOOL GPA, UNIVERSITY SUCCESS, PREDICTOR