A Comparison of Water Additives for Mopping-up After Forest Fires

1996 ◽  
Vol 6 (1) ◽  
pp. 37 ◽  
Author(s):  
D Rawet ◽  
R Smith ◽  
G Kravainis

A trial was carried out to compare the effectiveness of six extinguishants currently used in forest fire mopping up operations by the Western Australian Department of Conservation and Land Management. The extinguishants; water alone, water with retardant, foam, retardant plus foam, wetting agent and retardant plus wetting agent were compared by applying them to burning heaps of dry pine logs. There were twelve replicates of each extinguishant treatment, with one of each type being applied each day over twelve days. Foam, used alone or with retardant, was most effective in extinguishing flaming combustion, both in terms of the time taken and the amount of water used, but was least effective in preventing the re-ignition of hot, smouldering logs. Retardant plus foam required significantly less total water than the other extinguishants because of the effect of the retardant in delaying re-ignition. In terms of total water used the most expensive treatment was straight water, requiring 17% more than retardant plus foam but only about 7% more than the other four treatments. The poor performance of the foam treatments in preventing re-ignitions, may have been due to the method of application. The observed advantage of foam in terms of knockdown capability needs further validation.

1979 ◽  
Vol 4 (1) ◽  
pp. 20-21
Author(s):  
E. J. Mildern

The Parents' Help Centre is a child abuse prevention unit which began operation in Perth on 9.1.1976. The Centre is administered by the Western Australian Department for Community Welfare and is jointly funded by the Office of Child Care and Department for Community Welfare.The Centre aims at preventing the physical abuse of pre-school children by offering a non-professional family-type support service in a warm accepting atmosphere to parents who are having difficulty in controlling their behaviour towards their (pre-school) children. The Centre is available to parents 24 hours a day, 7 days a week.


1989 ◽  
Vol 13 ◽  
pp. 64-68 ◽  
Author(s):  
C.R. Fenn

Bias-corrected suspended sediment rating equations are developed for the data from six separate ablation seasons in the Glacier de Tsidjiore Nouve basin. These equations differ significantly from one another. Suspended loads as predicted by equations used beyond their year of origin fall in the range of 34-278% of the true load. Mean absolute-percentage errors (MAPE) based on forecasts computed from each year’s model applied to the other 5 years of data range from 35 to 81%, with a mean of 52%. The equivalent MAPE for a lumped multi-year model is 38%, for an autocorrelation-correcting generalized least-squares (GLS) regression model, is 15%, and for a transfer function (TF) developed from a single 25 d period, only 5%. Simple structure-transfer functions appear to be more robust to temporal transfer than the usual type of rating equation, and offer the possibility of greatly improving upon the poor performance of OLS rating equations in providing estimates of suspended loads for periods beyond frames of origin.


Author(s):  
Jesús Miguel Muñoz Cantero ◽  
María Alicia Arias ◽  
María Dorinda Mato Vázquez

Resumen:El estudio de las actitudes hacia las matemáticas ha propiciado la realización de numerosas investigaciones orientadas a identificar dichas actitudes y a desarrollar instrumentos para su medida. Por otro lado, los resultados de las evaluaciones de organismos internacionales ponen de manifiesto el bajo rendimiento de los estudiantes en las matemáticas. A partir de una muestra de 2549 alumnos de Educación Secundaria Obligatoria, siguiendo los modelos de ecuaciones estructurales, se ha propuesto un modelo basado en dos escalas: “Actitud del profesor percibida por el alumno” (APPA) y “Agrado y utilidad de las matemáticas” (AUM) de Mato y Muñoz (2008), y se ha analizado mediante análisis de regresión múltiple (paso a paso) su relación con el rendimiento académico medido a través de la calificación del curso pasado. Los resultados muestran una relación directa de las dos escalas entre sí, confirmándose la importancia de éstas como variables predictoras sobre el rendimiento. Por lo tanto, la “Percepción que tienen los estudiantes del profesor de matemáticas” y el “Agrado y utilidad de las matemáticas” pueden influir de manera determinante en el proceso de enseñanza y de aprendizaje, así como en los resultados académicos adquiridos. Abstract:The study of attitudes towards mathematics has led to the realization of numerous investigations aimed at identifying these attitudes and developing instruments for its measurement. On the other hand, the results of evaluations of international organizations highlight the poor performance of students in Mathematics. From a sample of 2549 students of Secondary Education, following structural equation models, we have proposed a model based on two scales: teacher attitude as perceived by the student (APPA) and utility and value of mathematics in the future (AUM) by Mato y Muñoz (2008), and analyzed by multiple regression analysis (stepwise) its relationship to academic performance. The results show a direct relationship between the two scales, confirming their importance as predictor variables on performance. Therefore, “The perception that students have of Mathematics teacher” and the “Utility and value of Mathematics” can have a decisive influence on the process of teaching and learning, as well as in the acquired academic results.


2018 ◽  
Vol 29 (2) ◽  
Author(s):  
Graeme Lock

Education authorities continue to experience difficulty in recruiting and retaining teachers in rural and remote schools. In Western Australia (WA), a state noted for its vastness and number of schools located in rural and remote settings, a scheme developed by the Western Australian Department of Education and Training (DET) and the WA Chamber of Minerals and Energy aims to address this challenge by offering financial support to student teachers who wish to undertake their final practicum in a remote or rural education district in which they hope to work after graduation. The Student Teacher Rural Experience Program (STREP) assists with return travel costs and a weekly stipend for the duration of the practicum. The DET specifies the particular districts to which the STREP will apply and applicants need to satisfy a number of selection criteria. In 2005 a survey involving 2004 and 2005 STREP participants was undertaken to ascertain their opinions about how effective the program was in preparing them to teach in rural locations. This article discusses the quantitative data and participant comments on issues not adequately covered by STREP and how the program might be improved.  


1989 ◽  
Vol 13 ◽  
pp. 64-68
Author(s):  
C.R. Fenn

Bias-corrected suspended sediment rating equations are developed for the data from six separate ablation seasons in the Glacier de Tsidjiore Nouve basin. These equations differ significantly from one another. Suspended loads as predicted by equations used beyond their year of origin fall in the range of 34-278% of the true load. Mean absolute-percentage errors (MAPE) based on forecasts computed from each year’s model applied to the other 5 years of data range from 35 to 81%, with a mean of 52%. The equivalent MAPE for a lumped multi-year model is 38%, for an autocorrelation-correcting generalized least-squares (GLS) regression model, is 15%, and for a transfer function (TF) developed from a single 25 d period, only 5%. Simple structure-transfer functions appear to be more robust to temporal transfer than the usual type of rating equation, and offer the possibility of greatly improving upon the poor performance of OLS rating equations in providing estimates of suspended loads for periods beyond frames of origin.


ECA Sinergia ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 111
Author(s):  
Pedro Octavio Mendoza Zambrano ◽  
Kerly Cecilia Cruz Arteaga ◽  
Youry Rezabala Encalada ◽  
Wilton Rafael Saltos Rivas

  El objetivo de esta investigación es determinar los aspectos fundamentales que incidieron en este bajo desempeño laboral. Se realizó una fase documental en la cual se analizaron documentos del Consejo de la Judicatura de Manabí en relación a las otras 23 Judicaturas a nivel nacional para determinar posibles causas institucionales. En la fase de campo, se aplicó un cuestionario en escala de Likert para determinar posibles causas asociadas a los servidores del Consejo relacionados con la satisfacción en su puesto de trabajo. De la fase documental, los resultados indican que la inestabilidad de directores Provinciales en 2018, pudiera ser la causa principal que conllevó al bajo desempeño del Consejo de la Judicatura de Manabí para ese año, sin embargo. Los resultados revelaron que a pesar del bajo desempeño del Consejo de la Judicatura de Manabí, sus funcionarios aún están satisfechos con sus puestos de trabajo, por lo tanto, se puede afirmar que el bajo desempeño de esta instancia organizativa se debió a la alta rotación de sus directivos (lo que ocasiona inestabilidad de directrices en el puesto de trabajo) y no a los servidores.   Palabras clave: Desempeño laboral; mejora continua; inestabilidad política; consejo de la judicatura de manabí.   ABSTRACT   The objective of this research is to determine the fundamental aspects that influenced this low job performance. A documentary phase was carried out in which documents of the Manabí Judiciary Council were analyzed in relation to the other 23 Judiciary at the national level to determine possible institutional causes. In the field phase, a Likert scale questionnaire was applied to determine possible causes associated with the Council’s servants related to job satisfaction. From the documentary phase, the results indicate that the instability of Provincial directors in 2018 could be the main cause that led to the poor performance of the Manabí Judicial Council for that year, however. The results revealed that despite the poor performance of the Manabí Judiciary Council, its officials are still satisfied with their jobs, therefore, it can be stated that the poor performance of this organizational instance was due to the high turnover of their managers (which causes instability of guidelines in the workplace) and not the servers.   Keywords: Job performance; continuous improvement; political instability; manabí judicial council.


1993 ◽  
Vol 15 (3) ◽  
pp. 275-289 ◽  
Author(s):  
Niilo Koettinen ◽  
Heikki Lyytinen

Preshot brain slow potential (SP) shifts from frontal, central, centro-lateral, and occipital areas were recorded for 12 national-caliber sharpshooters during rifle-shooting performance. The aim of the study was to examine the intra-and intersubject variation in these SP profiles and to compare the superior performance to the poor performance. The results revealed that each shooter responded with one main SP profile in both performance categories. The other profiles represented outliers rather than substantial variation. The main profiles differed from subject to subject, presumably indicating several shooting styles. Finally, the main profiles related to high and low score shots could be differentiated, but this differentiation varied from subject to subject. The results were interpreted as showing that a shooter tends systematically to carry through a learned performance pattern, which is reflected in the main SP profile of the superior shots. If the shooter fails to follow this pattern, the shot is preceded by different SP changes.


Author(s):  
Tom Walter Eitelhuber ◽  
James Thackray ◽  
Steve Hodges ◽  
Janine Alan

The Western Australia Data Linkage System (WADLS) is maintained and operated by the WA Data Linkage Branch (DLB) at the Western Australian Department of Health. DLB has pioneered a number of data linkage innovations, including the facilitation of genealogical research via the Family Connections system and streamlined data delivery via the Custodian Administered Research Extract Server. DLB’s latest innovation is a new data linkage system called “DLS3”, which improves DLB’s capability and capacity to handle the increasing volume and complexity of its routine operations. DLS3 was built entirely in-house and customised to meet the specific challenges that DLB has encountered throughout over twenty years of experience with a wide variety of linkages. This article describes the development and rollout of DLS3, including its design, architecture, benefits and limitations.


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