SAFETY TESTS FOR THE BACULOVIRUS OF THYMELICUS LINEOLA (LEPIDOPTERA: HESPERIIDAE)

1979 ◽  
Vol 111 (4) ◽  
pp. 459-464 ◽  
Author(s):  
W. A. Smirnoff ◽  
Jeremy N. McNeil ◽  
Pierre Lamothe
Keyword(s):  
Integrated Control ◽  
Microbial Control ◽  
Field Trials ◽  
Control Agent ◽  
Control Programme ◽  
Insect Species ◽  
Tissue Cultures ◽  
Control Groups ◽  
Microbial Insecticide ◽  
And Control

AbstractThe baculovirus of Thymelicus lineola (Ochs.) has proved most effective as a microbial control agent of its host in numerous field trials, however, prior to its general use in an integrated control programme its possible deleterious effects on non-target organisms must be considered. Therefore the pathogenicity of this baculovirus to sheep and its cytopathogenicity to tissue cultures of lamb and calf testes were studied. Preliminary tests on 16 insect species were also carried out. No macro- or microscopic differences were detected between treated and control groups, suggesting that this baculovirus is quite specific and that its use as a microbial insecticide is feasible against T. lineola.

scholarly journals A Preliminary Study on the Safety, Efficacy and Acceptability of the Community Preparation of Siling Labuyo (Capsicum frutescens) Liniment in the Management of Knee Osteoarthritis in a Six-Week, Active-Controlled Community-Based Clinical Trial

2019 ◽  
Vol 53 (4) ◽  
Author(s):  
Elizabeth R. Paterno ◽  
Clarisse A. Pangilinan ◽  
Erna C. Arollado ◽  
Rachael Marie B. Rosario
Keyword(s):  
Clinical Trial ◽  
Knee Osteoarthritis ◽  
Control Agent ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Control Groups ◽  
Double Blind ◽  
The Difference ◽  
And Control ◽  
Experimental Group

Objective. The study determined the safety, efficacy and acceptability of a Philippine community preparation of Siling Labuyo liniment in the management of knee osteoarthritis. Methods. A 6-week randomized, double-blind, active-controlled clinical trial was conducted in three municipalities of Cavite from 2017-2018. The municipalities were randomly assigned to either the control or experimental group, using a commercially available Diclofenac 1% gel as the control agent. Knee Injury and Osteoarthritis Outcome Score (KOOS) and Pain Visual Analogue Scale (VAS) were used to measure the outcomes. Results. Forty-seven participants completed the study. Statistically significant improvement (p<0.05) in pain relief, reduction of symptoms and increase in knee functionality was reported by participants in both the experimental and control groups. Across the dimensions measured, at least 30% improvement in scores was reported by the experimental group, and at least 40% by the control group. The difference was statistically not significant (p>0.05). Itching (13%), burning sensation (11%) and reddening of the skin (15%) were experienced in both the experimental and the active control groups. Conclusion. Use of the liniment led to a modest therapeutic effect and was well-tolerated by the participants.

scholarly journals The Association between Cleaning and Disinfection of Lairage Pens and the Prevalence of Salmonella enterica in Swine at Harvest

2004 ◽  
Vol 67 (7) ◽  
pp. 1384-1388 ◽  
Author(s):  
PEGGY L. SCHMIDT ◽  
ANNETTE M. O'CONNOR ◽  
JAMES D. McKEAN ◽  
H. SCOTT HURD
Keyword(s):  
Lymph Nodes ◽  
Peracetic Acid ◽  
Salmonella Enterica ◽  
Field Trials ◽  
Control Groups ◽  
Significant Difference ◽  
Disinfection Procedure ◽  
Cleaning And Disinfection ◽  
And Control ◽  
Slaughtered Pigs

A series of four field trials were conducted to evaluate the ability of a cleaning and disinfection procedure in swine lairage pens to reduce the prevalence of Salmonella enterica in slaughtered pigs. A cleaning and disinfection procedure was applied to lairage pens at a large Midwest abattoir. Each trial consisted of a cleaned (alkaline chloride detergent) and disinfected (H2O2 plus peracetic acid sanitizer) pen (treated) and a control pen, each holding 90 to 95 pigs for 2 to 3 h before slaughter. Ileocecal lymph nodes, cecal contents, and rectal contents were collected from 45 pigs from each study pen at harvest and cultured for S. enterica. In all trials, cleaning and disinfection reduced the prevalence of S. enterica–positive floor swabs in the treated pen (P &lt; 0.05). However, the postharvest prevalence of S. enterica–positive pigs varied between trials. In trial 1, there was no significant difference in the prevalence of S. enterica in pigs between treatment and control groups. In trials 2 and 3, the prevalence of S. enterica was higher in pigs from treated pens versus pigs from control pens (91% versus 40%, P &lt; 0.0001, and 91% versus 24%, P &lt; 0.0001, respectively). In trial 4, the prevalence of S. enterica was lower in pigs from treated pens compared with pigs from control pens (5% versus 42%, P &lt; 0.0001). This study indicates that cleaning and disinfection effectively reduces the amount of culturable S. enterica in lairage pens, but the ability of cleaned and disinfected pens to reduce the prevalence of S. enterica in market-weight pigs remains inconclusive.

scholarly journals A potential microbial control for fireweed (Epilobium angustifolium)

2005 ◽  
Vol 75 (1) ◽  
pp. 19-33 ◽  
Author(s):  
R.S. Winder ◽  
A.K. Watson
Keyword(s):  
Microbial Control ◽  
Pathogenic Fungi ◽  
Field Trials ◽  
Control Agent ◽  
Malt Extract ◽  
Promising Candidate ◽  
Test Species ◽  
Epilobium Angustifolium ◽  
Screening Assays ◽  
Further Development

Diseased fireweed (Epilobium angustifolium) plants were collected in Quebec and organisms isolated from these plants were evaluated as potential biocontrol agents. Thirteen pathogenic fungi were isolated and three of these (Colletotrichum dematium, Seimatosporium kriegerianum, and Alternaria alternata) were virulent in initial screening assays. C. dematium was selected for further study because it was the most virulent pathogen, causing large necrotic lesions on leaves and stems of infected plants. Inoculum production was optimized on modified malt extract agar and the virulence enhanced by suppression of the conidial matrix with tannic acid and the addition of extracts of Aloe saponaria. The fungus was pathogenic to fireweed and E. lanceolatum, while other test species were very resistant or immune. Measurements of conidial and appressorial dimensions and its restricted host range support the hypothesis that the isolate may be an unreported form-species. Application of formulated conidia consistently provided 100% mortality of 7-wk-old inoculated fireweed rosettes within 48 h using 109 conidia m-2, from 10- to 15-d-old inoculum, and a 18- to 24-h dew period. Virulence was diminished in older plants. In field trials, growth of inoculated rosettes was reduced by 33%. These results suggest that C. dematium is a promising candidate for further development as a control agent for seedling fireweed in silviculture.

scholarly journals PHYSICS COMPREHENSIVE CONTEXTUAL TEACHING MATERIAL UNTUK MENINGKATKAN KEMAMPUAN ARGUMENTASI

2020 ◽  
Vol 5 (2) ◽  
pp. 52-60
Author(s):  
Muhammad Zaini ◽  
Nugroho Prasetya Adi ◽  
Lalu Usman Ali
Keyword(s):  
Field Trials ◽  
Control Group ◽  
Control Groups ◽  
Teaching Materials ◽  
Is Research ◽  
Quasi Experimental ◽  
Android Applications ◽  
Contextual Teaching ◽  
Teaching Learning ◽  
And Control

Contextual Teaching Learning (CTL) is learning based on contextual events in daily life. The development of teaching materials assisted by android applications in learning physics is a very necessary thing and needs to be carried out continuously. This research aims to produce android-assisted PhyCCTM teaching materials that can improve the ability of argumentation. This research is research and development. The development procedure refers to the development model adapted from the 4D model which consists of four stages namely defining, designing, developing, and distributing. Content validation was carried out by four lecturers and seven physics teachers. Field trials are carried out in schools by applying the quasi-experimental method and using the control group pretest and posttest design. The trial was conducted by taking two classes as experimental and control classes. Improvement and differences in the results of students' argumentation abilities in the experimental and control groups were done by t-test. The research results obtained are android-assisted PhyCCTM teaching materials to improve the ability of argumentation worthy to be used with the category of "Good" and android-assisted PhyCCTM able to improve students' ability to argue with sig. (2-tailed) of 0,000. The conclusion obtained from this study is that Android-assisted PhyCCTM teaching materials developed are feasible to use and are able to improve students' ability to argue.

Conjugated Linoleic Acid Causes a Marked Increase in Liver α-Tocopherol and Liver α-Tocopherol Transfer Protein in C57BL/6 J Mice

2010 ◽  
Vol 80 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Pei-Min Chao ◽  
Wan-Hsuan Chen ◽  
Chun-Huei Liao ◽  
Huey-Mei Shaw
Keyword(s):  
Antioxidant Enzymes ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Thiobarbituric Acid ◽  
Control Group ◽  
Thiobarbituric Acid Reactive Substances ◽  
Control Groups ◽  
Protein Levels ◽  
Transfer Protein ◽  
And Control

Conjugated linoleic acid (CLA) is a collective term for the positional and geometric isomers of a conjugated diene of linoleic acid (C18:2, n-6). The aims of the present study were to evaluate whether levels of hepatic α-tocopherol, α-tocopherol transfer protein (α-TTP), and antioxidant enzymes in mice were affected by a CLA-supplemented diet. C57BL/6 J mice were divided into the CLA and control groups, which were fed, respectively, a 5 % fat diet with or without 1 g/100 g of CLA (1:1 mixture of cis-9, trans-11 and trans-10, cis-12) for four weeks. α-Tocopherol levels in plasma and liver were significantly higher in the CLA group than in the control group. Liver α-TTP levels were also significantly increased in the CLA group, the α-TTP/β-actin ratio being 2.5-fold higher than that in control mice (p<0.01). Thiobarbituric acid-reactive substances were significantly decreased in the CLA group (p<0.01). There were no significant differences between the two groups in levels of three antioxidant enzymes (superoxide dismutase, glutathione peroxidase, and catalase). The accumulation of liver α-tocopherol seen with the CLA diet can be attributed to the antioxidant potential of CLA and the ability of α-TTP induction. The lack of changes in antioxidant enzyme protein levels and the reduced lipid peroxidation in the liver of CLA mice are due to α-tocopherol accumulation.

The Prospects and Risks Connected with Increasing the Level of Self-Organisation in Students

2020 ◽  
pp. 75-81
Author(s):  
Svetlana Alexandrovna Kosareva ◽  
Keyword(s):  
Higher Education ◽  
Professional Competence ◽  
Initial Level ◽  
Education Institution ◽  
Diagnostic Methods ◽  
Study Guide ◽  
Learning Approaches ◽  
Control Groups ◽  
Self Organisation ◽  
And Control

The paper describes the method for increasing the level of self-organisation in students which has been developed by the author. It also contains the method testing results and presents the prospects and risks teachers could face while applying the method in a higher education institution. The purpose of this study is to find out the prospects and risks of applying the method for increasing the level of self-organisation in students and to determine the ways of reducing the risks. Methodology. The author points out the learning approaches which were the basis of developing the method and describes diagnostic methods for determining students’ self-organisation levels. The work focused on increasing each student’s initial level consists of a theoretical and a practical part and includes project activities on creating a study guide. The results of the study. The method developed proved to be effective. It was established by diagnosing the final level of self-organisation in students in the experimental and control groups. The paper considers the advantages of the method among which there is universal character, flexibility, improvements to teacher’s and students’ professional competence, etc. At the same time it is necessary to be aware of the risks due to the increased amount of teacher’s work and the fact that students’ work within the project tends to be monotonous. In conclusion, the prospects of the method for increasing the level of self-organisation in students are related to its advantages and the final results of the work. The risks of its use can be reduced with the help of the measures proposed in the paper.

Sri Lankan Cleft Lip and Palate Study Model Analysis: Clefts of the Secondary Palate

1993 ◽  
Vol 30 (2) ◽  
pp. 227-230 ◽  
Author(s):  
Andrew Mccance ◽  
David Roberts-Harry ◽  
Martyn Sherriff ◽  
Michael Mars ◽  
William J.B. Houston
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Model Analysis ◽  
Control Group ◽  
Tooth Size ◽  
Sri Lankan ◽  
Control Groups ◽  
Secondary Palate ◽  
Comparable Control ◽  
And Control

The study models of a group of adult Sri Lankan patients with clefts of the secondary palate were investigated. Tooth-size and arch-dimension comparisons were made with a comparable control group. Significant differences were found between the cleft and control groups in tooth sizes, chord lengths, and arch widths. The cleft group dimensions were generally smaller than those of the control group. Overjets were larger in the cleft group.

THE EFFECT OF APPLYING ANIMAL CARTOON PICTURES ON STUDENTS’ ACHIEVEMENT IN WRITING NARRATIVE TEXT

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Hasanul Arifin Zul And Masitowarni Siregar
Keyword(s):  
T Test ◽  
Narrative Text ◽  
Control Group ◽  
First Year ◽  
Writing Achievement ◽  
Control Groups ◽  
Post Test ◽  
Written Test ◽  
And Control ◽  
Experimental Group

This thesis is focused on the investigation of the effect of applying animal cartoon pictures on students’ achievement in writing narrative text. This study aims to find whether applying animal cartoon pictures significantly affect the students’ writing achievement or not. The data in this study were obtained by administering a written test. The population was the 2015/2016 first year (grade XI) of SMA Swasta Nusantara Lubuk Pakam and 66 students were taken as the sample by using random sampling. The sample was divided into two groups, experimental and control groups. The experimental group was taught by applying animal cartoon pictures while the control group without animal cartoon pictures (x = lecturing). The data were taken the scores from the pre-test and post-test to both experimental and control groups. These data were analyzed by using t-test. The result of computing the t-test obviously showed that t-observed is higher than t-table (5.21 >1,67) with the degree of freedom 64 (df =N-2) at the level significance 0,05 one tail test. It showed that the application of animal cartoon pictures significantly affected the students of SMA Swasta Nusantara Lubuk Pakam achievement in writing narrative text.

THE EFFECT OF APPLYING DEMONSTRATION METHOD ON STUDENTS’ ACHIEVEMENT IN SPEAKING SKILL AT THE THIRD GRADE OF SMK PAB 3 MEDAN ESTATE

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Meryanti Napitupulu And Anni Holila Pulungan
Keyword(s):  
High School ◽  
Control Group ◽  
Vocational High School ◽  
Control Groups ◽  
Speaking Test ◽  
The Third ◽  
Speaking Skill ◽  
The Subject ◽  
And Control ◽  
Experimental Group

This study was conducted as an attempt to discover the effect of applying Demonstration Method on students’ achievement in speaking skill. It was an experimental research. The subject was students of Grade XII, Vocational High School (Sekolah Menengah Kejuruan: SMK), which consisted of 79 students. The research was divided into two groups: experimental and control groups. The instrument used to collect the data was speaking test. To obtain the reliability of the test, the writer applied Kuder Richardson 21 formula. The result of the reliability was 0.7, and it was found that the test was reliable. The data were analyzed by using t-test formula. The analysis showed that the scores of the students in the experimental group were significantly higher than the scores of the students in the control group at the level of significant m = 0.05 with the degree of freedom (df) 77, t-observed value 8.9 > t-table value 1.99. The findings indicate that using Demonstration Method significantly affected the students’ achievement in speaking skill. So, English teachers are suggested to use Demonstration Method in order to improve students’ achievement in speaking skill.

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