Evaluation of three relative abundance indices for assessing dingo populations

1996 ◽  
Vol 23 (2) ◽  
pp. 197 ◽  
Author(s):  
L Allen ◽  
R Engeman ◽  
H Krupa
Keyword(s):  
Relative Abundance ◽  
Canis Lupus ◽  
Activity Index ◽  
Correlation Coefficients ◽  
Target Species ◽  
Wild Canids ◽  
Population Reduction ◽  
Abundance Indices ◽  
High Level ◽  
Level Of Agreement

Three methods of assessing relative abundance of wild canids were evaluated on a population of dingoes, Canis lupus dingo (Corbett), on a cattle station in south-westem Queensland. The tested indices relied on measurements of activity based on spoor. Two of the techniques attracted the target species to tracking stations through the use of a novel (fatty acid scent) or food-based (buried meat) attractant. The third index (activity) measured the number of dingo tracks crossing tracking stations placed at 1-km intervals along a road transect. All three indices had a high level of agreement for detecting differences in relative abundance, with correlation coefficients exceeding 0.85. When the stations were analysed in 1-km segments, the activity index proved the most sensitive, producing proportionally more positive responses than either of the other two indices irrespective of whether the tracking stations were assessed at 1-, 2-, 3- or 4-day intervals. Inconsistencies between indices existed, with the derived abundance indices not showing the anticipated reduction following population reduction. The effect of season and the interaction between dingo activity and index methodology are discussed.

scholarly journals Comparison of Two Derivatization Methods for the Analysis of Fatty Acids andTransFatty Acids in Bakery Products Using Gas Chromatography

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Jumat Salimon ◽  
Talal A. Omar ◽  
Nadia Salih
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Methyl Esters ◽  
Correlation Coefficients ◽  
Bakery Products ◽  
Trimethylsilyl Diazomethane ◽  
Acid Catalyzed ◽  
High Level ◽  
Level Of Agreement

Two different procedures for the methylation of fatty acids (FAs) andtransfatty acids (TFAs) in food fats were compared using gas chromatography (GC-FID). The base-catalyzed followed by an acid-catalyzed method (KOCH3/HCl) and the base-catalyzed followed by (trimethylsilyl)diazomethane (TMS–DM) method were used to prepare FA methyl esters (FAMEs) from lipids extracted from food products. In general, both methods were suitable for the determination ofcis/transFAs. The correlation coefficients (r) between the methods were relatively small (ranging from 0.86 to 0.99) and had a high level of agreement for the most abundant FAs. The significant differences (P=0.05) can be observed for unsaturated FAs (UFAs), specifically for TFAs. The results from the KOCH3/HCl method showed the lowest recovery values (%R) and higher variation (from 84% to 112%), especially for UFAs. The TMS-DM method had higherRvalues, less variation (from 90% to 106%), and more balance between variation and %RSD values in intraday and interday measurements (less than 4% and 6%, resp.) than the KOCH3/HCl method, except for C12:0, C14:0, and C18:0. Nevertheless, the KOCH3/HCl method required shorter time and was less expensive than the TMS-DM method which is more convenient for an accurate and thorough analysis of richcis/transUFA samples.

A Comparison of Student and Instructor Preferences for Design and Pedagogy Features in Postsecondary Online Courses

2011 ◽  
Vol 1 (3) ◽  
pp. 1-17 ◽  
Author(s):  
Xiaolin C. Hu ◽  
Edward L. Meyen
Keyword(s):  
Social Networking ◽  
Research University ◽  
Online Courses ◽  
Correlation Coefficients ◽  
Secondary Level ◽  
Post Secondary ◽  
Significant Difference ◽  
Development Goals ◽  
High Level ◽  
Level Of Agreement

This study investigates the preferences of instructors and students for design and pedagogy features of online instruction at the post-secondary level. Participants included 60 instructors and 200 students at a comprehensive research university. Correlation coefficients of .95 on the design item rankings and .87 on the pedagogy item rankings were found between instructors and students. An independent sample T-test was conducted, resulting in a finding of significant difference between the preferences of instructors and students on 19 of 63 features. Additional findings included the high level of agreement on design and pedagogy features among all students as a group and subgroups (e.g., students earning regular university credit and those pursuing professional development goals.) An interesting finding was the concurrence in the low preferences by instructors and students. Both groups rated low those features pertaining to social networking and collaboration.

scholarly journals First in, first served: uptake of 1080 poison fox baits in south-west Western Australia

2014 ◽  
Vol 41 (2) ◽  
pp. 117 ◽  
Author(s):  
Shannon J. Dundas ◽  
Peter J. Adams ◽  
Patricia A. Fleming
Keyword(s):  
Western Australia ◽  
Activity Index ◽  
Target Species ◽  
Jarrah Forest ◽  
Remote Cameras ◽  
South West ◽  
Multiple Species ◽  
High Level ◽  
Number Of Passes

Context In Western Australia, baits containing 1080 poison are widely used to control the red fox (Vulpes vulpes) for fauna conservation. Despite long-term (15–17 years) baiting programs, bait uptake by target and non-target species is largely unknown, but affects baiting efficacy. Aims We examined bait uptake of 1080-poisoned fox baits laid according to current practice at seven riparian sites in the northern jarrah forest (of south-west Western Australia). There, intensive baiting regimes have been implemented for the protection of quokka (Setonix brachyurus) populations. Methods Over 9 months, 299 Probait® baits were monitored regularly to determine their persistence, and, at 142 of these, Reconyx HC500 remote cameras were used to identify the species taking baits. To compare bait uptake with species presence at these sites, we calculated an activity index for each species from the number of passes of animals in front of the cameras. Key results The species taking baits was identified for 100 of the baits monitored with cameras, and, because of multiple species taking baits, 130 bait take incidents were recorded in total. The fate of 40 of the baits was not discernible and two baits were not removed. In all, 99% of baits monitored by cameras were taken by non-target species and quokkas took 48% of them. The majority of baits (62% of the total 299 monitored) were taken before or on the first night of deployment, and 95% of baits had been taken within 7 days. With the exception of feral pigs, which took more baits than predicted from their activity index at these sites, baits were taken in proportion to the activity index of species. Foxes were present at four of the seven sites, but only one fox was observed taking a bait. Conclusions The high level of uptake of baits by non-target animals reflects their diversity and abundance at these sites, but also significantly reduces the availability of baits to control foxes. Implications Strategies to reduce non-target bait uptake and increase bait availability for foxes are required.

scholarly journals Evaluation of Kinetics and Single-Read Enzyme-Linked Immunoassays for Detection of Toxoplasma Gondii Antibodies in Sheep

2002 ◽  
Vol 14 (3) ◽  
pp. 225-230 ◽  
Author(s):  
Stephen R. Werre ◽  
Richard H. Jacobson ◽  
Dwight D. Bowman ◽  
Jitender P. Dubey ◽  
Hussni O. Mohammed
Keyword(s):  
Toxoplasma Gondii ◽  
Reaction Rate ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Enzyme Linked Immunosorbent Assay ◽  
Kappa Statistics ◽  
Operating Characteristics ◽  
Modified Agglutination Test ◽  
High Level ◽  
Level Of Agreement

A kinetics enzyme-linked immunosorbent assay (ELISA) and a single-read ELISA for the detection of ovine anti- Toxoplasma gondii IgG were developed and optimized. During the kinetics assay, 3 optical densities were obtained for each serum sample at intervals of 45 seconds, and the results were presented as average slopes (replicates of 2) of the reaction rate between bound enzyme and substrate solution. The kinetics ELISA was stopped 5 minutes after dispensing the substrate to constitute the single-read ELISA, and the results were presented as average optical densities for duplicates of each sample. Performance of the assays was evaluated using the modified agglutination test (MAT) as the “gold standard.” There was a high level of agreement between both ELISAs and the MAT, as measured by Pearson correlation coefficients, kappa statistics, and the area under the receiver operating characteristics curves. The single-read ELISA was as accurate as the kinetics ELISA, with a sensitivity of 89% and a specificity of 96%.

A Comparison of Student and Instructor Preferences for Design and Pedagogy Features in Postsecondary Online Courses

2013 ◽  
pp. 213-229
Author(s):  
Xiaolin C. Hu ◽  
Edward L. Meyen
Keyword(s):  
Professional Development ◽  
Social Networking ◽  
Research University ◽  
Online Courses ◽  
Correlation Coefficients ◽  
Post Secondary ◽  
Significant Difference ◽  
Development Goals ◽  
High Level ◽  
Level Of Agreement

This study investigates the preferences of instructors and students for design and pedagogy features of online instruction at the post-secondary level. Participants included 60 instructors and 200 students at a comprehensive research university. Correlation coefficients of .95 on the design item rankings and .87 on the pedagogy item rankings were found between instructors and students. An independent sample T-test was conducted, resulting in a finding of significant difference between the preferences of instructors and students on 19 of 63 features. Additional findings included the high level of agreement on design and pedagogy features among all students as a group and subgroups (e.g., students earning regular university credit and those pursuing professional development goals.) An interesting finding was the concurrence in the low preferences by instructors and students. Both groups rated low those features pertaining to social networking and collaboration.

The Comparability of Job Evaluation Methods in Supplying Approximately Similar Classifications in Rating One Job Series

1982 ◽  
Vol 12 (2) ◽  
pp. 38-40 ◽  
Author(s):  
R.J. Snelgar
Keyword(s):  
South Africa ◽  
Evaluation Method ◽  
Correlation Coefficients ◽  
Evaluation Methods ◽  
Job Evaluation ◽  
High Level ◽  
High Degree ◽  
Level Of Agreement ◽  
Similar Classification

There is a belief that any job evaluation method, when correctly applied to a series of jobs, will result in approximately the same rating classification as that supplied by any other method for the same job series. This study was aimed primarily at a determination of the extent to which a number of job evaluation methods, differing in methodology, and presently in use within South Africa on a national basis, would in fact supply similar classification. Correlation coefficients among the ratings supplied by participating organizations, in terms of points allocation for each job subsequent to evaluation according to job evaluation factors (raw point ratings), were unexpectedly high. These correlations ranged from 0,93 to 0,99, with an average of 0,98, indicating a remarkably high level of agreement. Correlations were properly transformed, and mean correlations of each organization with every other organization subsequently calculated. These mean correlations ranged from 0,96 to 0,98, once again indicating a high degree of commonality.

scholarly journals Patient-Reported Dysphagia in Adults with Eosinophilic Esophagitis: Translation and Validation of the Swedish Eosinophilic Esophagitis Activity Index

Dysphagia ◽  
2021 ◽  
Author(s):  
Sofie Albinsson ◽  
Lisa Tuomi ◽  
Christine Wennerås ◽  
Helen Larsson
Keyword(s):  
Eosinophilic Esophagitis ◽  
Activity Index ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Control Group ◽  
Cronbach’S Alpha ◽  
Intraclass Correlation Coefficients ◽  
Cronbach's Alpha ◽  
Patient Reported ◽  
Eortc Qlq

AbstractThe lack of a Swedish patient-reported outcome instrument for eosinophilic esophagitis (EoE) has limited the assessment of the disease. The aims of the study were to translate and validate the Eosinophilic Esophagitis Activity Index (EEsAI) to Swedish and to assess the symptom severity of patients with EoE compared to a nondysphagia control group. The EEsAI was translated and adapted to a Swedish cultural context (S-EEsAI) based on international guidelines. The S-EEsAI was validated using adult Swedish patients with EoE (n = 97) and an age- and sex-matched nondysphagia control group (n = 97). All participants completed the S-EEsAI, the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Oesophageal Module 18 (EORTC QLQ-OES18), and supplementary questions regarding feasibility and demographics. Reliability and validity of the S-EEsAI were evaluated by Cronbach’s alpha and Spearman correlation coefficients between the domains of the S-EEsAI and the EORTC QLQ-OES18. A test–retest analysis of 29 patients was evaluated through intraclass correlation coefficients. The S-EEsAI had sufficient reliability with Cronbach’s alpha values of 0.83 and 0.85 for the “visual dysphagia question” and the “avoidance, modification and slow eating score” domains, respectively. The test–retest reliability was sufficient, with good to excellent intraclass correlation coefficients (0.60–0.89). The S-EEsAI domains showed moderate correlation to 6/10 EORTC QLQ-OES18 domains, indicating adequate validity. The patient S-EEsAI results differed significantly from those of the nondysphagia controls (p < 0.001). The S-EEsAI appears to be a valid and reliable instrument for monitoring adult patients with EoE in Sweden.

Intersession reliability of GPS-based and accelerometer-based physical variables in small-sided games with and without the offside rule

2021 ◽  
pp. 175433712098764
Author(s):  
Igor Junio de Oliveira Custódio ◽  
Gibson Moreira Praça ◽  
Leandro Vinhas de Paula ◽  
Sarah da Glória Teles Bredt ◽  
Fabio Yuzo Nakamura ◽  
...  
Keyword(s):  
Root Mean Square ◽  
Global Positioning System ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Mean Square ◽  
Physical Demands ◽  
Intraclass Correlation Coefficients ◽  
Total Distance ◽  
Global Positioning ◽  
High Level

This study aimed to analyze the intersession reliability of global positioning system (GPS-based) distances and accelerometer-based (acceleration) variables in small-sided soccer games (SSG) with and without the offside rule, as well as compare variables between the tasks. Twenty-four high-level U-17 soccer athletes played 3 versus 3 (plus goalkeepers) SSG in two formats (with and without the offside rule). SSG were performed on eight consecutive weeks (4 weeks for each group), twice a week. The physical demands were recorded using a GPS with an embedded triaxial accelerometer. GPS-based variables (total distance, average speed, and distances covered at different speeds) and accelerometer-based variables (Player Load™, root mean square of the acceleration recorded in each movement axis, and the root mean square of resultant acceleration) were calculated. Results showed that the inclusion of the offside rule reduced the total distance covered (large effect) and the distances covered at moderate speed zones (7–12.9 km/h – moderate effect; 13–17.9 km/h – large effect). In both SSG formats, GPS-based variables presented good to excellent reliability (intraclass correlation coefficients – ICC > 0.62) and accelerometer-based variables presented excellent reliability (ICC values > 0.89). Based on the results of this study, the offside rule decreases the physical demand of 3 versus 3 SSG and the physical demands required in these SSG present high intersession reliability.

scholarly journals Agreement between different recall periods in drug utilization studies

2017 ◽  
Vol 20 (2) ◽  
pp. 324-334 ◽  
Author(s):  
Cassia Garcia Moraes ◽  
Sotero Serrate Mengue ◽  
Tatiane da Silva Dal Pizzol
Keyword(s):  
Drug Use ◽  
Drug Utilization ◽  
Recall Period ◽  
Percent Agreement ◽  
Drug Utilization Studies ◽  
24 Hour Recall ◽  
High Level ◽  
Continuous Use ◽  
First Interview ◽  
Level Of Agreement

ABSTRACT: Objective: To assess the agreement between three recall periods for self-reported drug use using a 24-hour recall period as reference. Methods: Participants were allocated into three groups with different recall periods of 7, 14 and 30 days and were interviewed at two different times. A 24-hour recall questionnaire was answered during the first interview, and a questionnaire on drug use over the different recall periods tested was answered during the second interview. The agreement between the questionnaires was evaluated using percent agreement and kappa. Results: For continuous drugs, percent agreement varied between 92 and 99% and kappa varied between 0.71 and 0.97 for three periods tested. For drugs of occasional use, percent agreement varied between 63 and 81% and kappa varied between 0.27 and 0.52. The prevalence of drugs, particularly those of occasional use, increases with time. Conclusions: The high level of agreement between the three recall periods suggests that all of them are valid for the investigation of drugs of continuous use.

Comparison of Prescription and Medical Records in Reflecting Patient Antihypertensive Drug Therapy

1994 ◽  
Vol 28 (1) ◽  
pp. 99-104 ◽  
Author(s):  
Dale B. Christensen ◽  
Barbara Williams ◽  
Harold I. Goldberg ◽  
Diane P. Martin ◽  
Ruth Engelberg ◽  
...  
Keyword(s):  
Medical Record ◽  
Medical Records ◽  
Health Maintenance Organizations ◽  
Antihypertensive Drug Therapy ◽  
Antihypertensive Medications ◽  
Pharmacy Records ◽  
Health Maintenance ◽  
Computer Based ◽  
High Level ◽  
Level Of Agreement

OBJECTIVE: To determine the completeness of prescription records, and the extent to which they agreed with medical record drug entries for antihypertensive medications. SETTING: Three clinics affiliated with two staff model health maintenance organizations (HMOs). PARTICIPANTS: Randomly selected HMO enrollees (n=982) with diagnosed hypertension. METHODS: Computer-based prescription records for antihypertensive medications were reviewed at each location using an algorithm to convert the directions-for-use codes into an amount to be consumed per day (prescribed daily dosage). The medical record was analyzed similarly for the presence of drug notations and directions for use. RESULTS: There was a high level of agreement between the medical record and prescription file with respect to identifying the drug prescribed by drug name. Between 5 and 14 percent of medical record drug entries did not have corresponding prescription records, probably reflecting patient decisions not to have prescriptions filled at HMO-affiliated pharmacies or at all. Further, 5–8 percent of dispensed prescription records did not have corresponding medical record drug entry notations, probably reflecting incomplete recording of drug information on the medical record. The percentage of agreement of medical records on dosage ranged from 68 to 70 percent across two sites. Approximately 14 percent of drug records at one location and 21 percent of records at the other had nonmatching dosage information, probably reflecting dosage changes noted on the medical record but not reflected on pharmacy records. CONCLUSIONS: In the sites studied, dispensed prescription records reasonably reflect chart drug entries for drug name, but not necessarily dosage.

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