LEUKEMIA AND MEDICAL RADIATION

PEDIATRICS ◽  
1959 ◽  
Vol 23 (3) ◽  
pp. 453-461
Author(s):  
Donald W. Polhemus ◽  
Richard Koch
Keyword(s):  
Statistical Analysis ◽  
Maternal Exposure ◽  
Gastrointestinal System ◽  
Medical Radiation ◽  
The Difference ◽  
Level Of Significance ◽  
Roentgen Rays

Radiation histories were compiled on 251 leukemic children and compared with an equal number of matched controls. In general, exposure to radiation was significantly more frequent among the leukemic group. Thymic irradiation was found to be associated with six times the usual incidence of leukemia, the data being highly significant (p <.01). Statistical analysis of the data relative to fluoroscopic studies of the heart or gastrointestinal system, even though not highly significant, does indicate the possibility of a relationship between this type of radiation and an increased incidence of leukemia (p <.05). Diagnostic roentgenograms had been performed more frequently in the leukemic group, but the level of significance was not great (p <.05). Maternal exposure to roentgen rays during pregnancy had occurred somewhat more commonly in the leukemic group, but the difference was too small to be significant (p <.10).

scholarly journals Fuel and lubricant consumption in felling the young oak-hornbeam stands

2002 ◽  
pp. 59-66
Author(s):  
Vojislav Bajic ◽  
Milorad Danilovic
Keyword(s):  
Statistical Analysis ◽  
Analysis Of Variance ◽  
Unit Area ◽  
Function Form ◽  
Tree Diameter ◽  
Significant Difference ◽  
The Difference ◽  
Level Of Significance ◽  
Average Consumption

Based on the elements of statistical analysis on the dependence of fuel and lubricant consumption on tree diameter, it was assessed that with the increase of tree diameter, the fuel and lubricant consumption in the young oak and hornbeam stands decreases significantly, both in clear felling and in thinning and that the function form Y=exp(a+b x X?1) is the best description of the correlation The consumption of fuel compared to lubricant consumption is almost double, which agrees with the results of the previous studies. Average consumption of fuel and lubricant is 17.43 mL x tree?1, on the plots 20.27 mL x tree?1, average consumption of lubricant per tree on skid roads is 9.4 mL x tree?1, on the plots 11 mL x tree?1. The higher consumption of fuel and lubricant on the plots with selective thinning is the consequence of the longer time needed for the conversion per tree, compared to that in clear felling The consumption of fuel per unit area on the skid roads (clear felling) is 22.9 L x ha?1, on the plots (selective thinning) 7.6 L x ha?1. The consumption of lubricant on the skid roads is 13.3 L x ha?1, on the plots 4.29 L x ha?1. The higher consumption of fuel and lubricant per unit area on the skid roads is due to the difference in the number of trees per unit area Based on the results of the analysis of variance, it was found out that between fuel and lubricant consumption in selective thinning and in felling the trees along tractor skid roads there is no statistically significant difference at the level of significance of 95%. So, for practical purposes, the unique norms of consumption can be established for the stands similar to those in which the study was performed.

scholarly journals The Effect of Cooperative Learning Method and Personality Type toward The Ability To Write Scientific Articles

2017 ◽  
Vol 2 (2) ◽  
pp. 168
Author(s):  
Supriatna Supriatna
Keyword(s):  
Statistical Analysis ◽  
Cooperative Learning ◽  
Student Learning ◽  
Personality Type ◽  
Personality Types ◽  
Learning Method ◽  
Test Results ◽  
The Difference ◽  
Cooperative Methods ◽  
Level Of Significance

<p><strong>Abstract.</strong> The purpose of this research found the effect of cooperative learning (Jigsaw type and TPS type) and the type of personality (extrovert and introvert) toward the ability to write scientific articles. The study used an experimental method to factorial design 2X2. The test results the ability to write scientific articles and results of questionnaire analysis of personality types using ANOVA design of two lanes on the 0:05 level of significance. With a diverse class selected a sample of 16 students from 57 students. The results showed that: (1) There are differences between students learning with Jigsaw type of cooperative methods and student learning with cooperative methods TPS type. F-table (F test = 5607&gt; Ftabel (0,05; 1:28) = 4.20). (2) There is a difference between students who have extroverted personality types and students who have introverted personality types. F-table (F-count = 4,928&gt; F-table (0:05; 1:28) = 4.20). (3) There is an interaction between the effects of cooperative learning method and the personality type of the skills of writing scientific articles. F-table (F-count = 51 165&gt; F-table (0:01; 1:28) = 7.64). (4) There are differences between students learning with Jigsaw type of cooperative methods and student learning by the type of cooperative methods TPS on students who have extroverted personality types. Q-count value = 9:53 is greater than Q-table (0:01; 4: 8) = 6.20. (5) There is a difference between students learning with Jigsaw type of cooperative methods and student learning by the type of cooperative methods TPS on students who have introverted personality types. This is evidenced by the results of statistical analysis obtained by value Q-count value = 4.79 is greater than Q-table (0:05; 4: 8) = 4.53. (6) The difference between the students who have the personality types extrovert and students who have introverted personality types on student learning with Jigsaw type of cooperative methods. Q-count value = 9:39 is greater than Q-table (0:01; 4: 8) = 6.20. (7) There is a difference between students who have the personality types extrovert and students who have introverted personality types on students who studied with TPS type of cooperative methods. Q-count value = 4.94 is greater than Q-table (0:05; 4: 8) = 4.53.</p>

scholarly journals Impact of Parameters of Irradiation of Potato Bulbs with UVC on Selected Coefficients of Assessment of Colour of Fries Determined with CIE L*A*B* Method

2019 ◽  
Vol 23 (2) ◽  
pp. 57-68
Author(s):  
Zygmunt Sobol ◽  
Tomasz Jakubowski ◽  
Piotr Nawara
Keyword(s):  
Statistical Analysis ◽  
Quality Changes ◽  
B Method ◽  
Analysis Of Results ◽  
The Difference ◽  
Level Of Significance ◽  
Uv C ◽  
Technological Treatments

AbstractAssessment of the colour with the use of many parameters is used with reference to evaluation of the quality changes of products resulting from application of specific technological treatments. The paper investigates the effect of relations between parameters of irradiation of potato bulbs with UVC on selected coefficients of assessment of the colour of fries determined with CIE L*a*b* method. It was statistically significantly proved that UV-C radiation affected brightness of fries, change in colour, recognition of the difference in colour and intensity of the colour reception. Statistical analysis of results was carried out at the assumed level of significance α=0.05.

The Effect of T-Commerce Scarcity Messages and Price Policies on Attitudes and Purchase Intention

2019 ◽  
Vol 118 (1) ◽  
pp. 42-47
Author(s):  
KwangSeok Han
Keyword(s):  
Statistical Analysis ◽  
Purchase Intention ◽  
Time Limit ◽  
Discount Factor ◽  
Limited Time ◽  
Price Discount ◽  
Discount Price ◽  
Strategic Plans ◽  
Factor Design ◽  
The Difference

Background/Objectives: This study investigated differences in the attitude of users according to type of scarcity message and price discount conditions to compose T-commerce sales messages and search for effective strategic plans. Methods/Statistical analysis: This study empirically verifies the difference in promotion attitude and purchase intention between the type of T-Commerce scarcity message (quantity limit message / time limit message) and the price discount policy (price discount / non-discount) message. For this purpose, 2 (scarcity type: limited quantity, limited time) X 2 (with or without price discount: price discount, no price discount) factor design between subjects was used.

Quantitative indicators of air traffic controllers’ attitude to the danger of errors

2020 ◽  
pp. 68-78
Author(s):  
O. M. Reva ◽  
V. V. Kamyshin ◽  
S. P. Borsuk ◽  
V. A. Shulhin ◽  
A. V. Nevynitsyn
Keyword(s):  
Human Factor ◽  
Differential Method ◽  
Air Traffic ◽  
Professional Activity ◽  
Aviation Accidents ◽  
Air Traffic Controllers ◽  
The Difference ◽  
Level Of Significance ◽  
The Individual ◽  
High Level

The negative and persistent impact of the human factor on the statistics of aviation accidents and serious incidents makes proactive studies of the attitude of “front line” aviation operators (air traffic controllers, flight crewmembers) to dangerous actions or professional conditions as a key component of the current paradigm of ICAO safety concept. This “attitude” is determined through the indicators of the influence of the human factor on decision-making, which also include the systems of preferences of air traffic controllers on the indicators and characteristics of professional activity, illustrating both the individual perception of potential risks and dangers, and the peculiarities of generalized group thinking that have developed in a particular society. Preference systems are an ordered (ranked) series of n = 21 errors: from the most dangerous to the least dangerous and characterize only the danger preference of one error over another. The degree of this preference is determined only by the difference in the ranks of the errors and does not answer the question of how much time one error is more dangerous in relation to another. The differential method for identifying the comparative danger of errors, as well as the multistep technology for identifying and filtering out marginal opinions were applied. From the initial sample of m = 37 professional air traffic controllers, two subgroups mB=20 and mG=7 people were identified with statisti-cally significant at a high level of significance within the group consistency of opinions a = 1%. Nonpara-metric optimization of the corresponding group preference systems resulted in Kemeny’s medians, in which the related (middle) ranks were missing. Based on these medians, weighted coefficients of error hazards were determined by the mathematical prioritization method. It is substantiated that with the ac-cepted accuracy of calculations, the results obtained at the second iteration of this method are more ac-ceptable. The values of the error hazard coefficients, together with their ranks established in the preference systems, allow a more complete quantitative and qualitative analysis of the attitude of both individual air traffic controllers and their professional groups to hazardous actions or conditions.

Analysis of the breeding records of a herd of pigs

1954 ◽  
Vol 45 (1) ◽  
pp. 19-27 ◽  
Author(s):  
R. Braude ◽  
P. M. Clarke ◽  
K. G. Mitchell
Keyword(s):  
Statistical Analysis ◽  
Large White ◽  
Seasonal Differences ◽  
Significant Difference ◽  
The Mean ◽  
The Difference ◽  
Length Of Gestation

1. A survey and. statistical analysis of the records of litters born in the N.I.R.D. herd of Large White pigs over a period of 16 years are presented.2. The mean length of gestation was 114 days for both gilts and sows.3. The mean numbers of pigs born alive and born dead per litter from gilts, 10·0 and 0·2 respectively, were both significantly smaller than the corresponding figures for sows, 11·8 and O·8. No seasonal differences were found.4. The mean total losses of pigs from birth to weaning at 8 weeks were 29·5% of pigs born alive. The losses in litters from gilts, 23·0%, were significantly smaller than in litters from sows, 31·0%. The losses during the winter months both for gilts, 32·5%, and for sows, 35·9%, were significantly higher than during the summer months, 19·4% and 26·7% for gilts and sows respectively.5. Over 50% of the total losses were due to crushing by the dam, 74·1% of the losses from this cause occurring during the first 48 hr. after birth.6. The mean number of pigs weaned per litter was 8·0. The difference between the number weaned per litter from gilts, 7·7, and per litter from number of pigs was weaned per litter from sows during the summer months, 8·7, than during the winter months, 7·4.7. There was no significant difference between the number of male and of female pigs weaned.8. The mean weight at weaning was 29·9 lb., male pigs, 30·3 lb., being significantly heavier than females, 29·51b. Pigs in litters from gilts, 27·81b., were significantly lighter at weaning than those from sows, 30·0 lb., and for both gilts and sows, pigs reared during the summer months, 29·7 and 31·8 lb. respectively, were significantly heavier than those reared during the winter months, 25·9 and 28·2 lb. respectively.

scholarly journals Characteristics of anteroposterior curvatures of the spine in soccer and futsal players

2017 ◽  
Vol 18 (4) ◽  
Author(s):  
Krystyna Chromik ◽  
Anna Burdukiewicz ◽  
Jadwiga Pietraszewska ◽  
Aleksandra Stachoń ◽  
Paweł Wolański ◽  
...  
Keyword(s):  
College Students ◽  
Statistical Analysis ◽  
Injury Prevention ◽  
Analysis Of Variance ◽  
Statistical Significance ◽  
Body Posture ◽  
Soccer Players ◽  
Prevention Training ◽  
The Difference ◽  
Post Hoc

AbstractPurpose. The aim of the study was to determine differences in anteroposterior spine curvatures between futsal players, soccer players, and non-training students. The results may contribute to the development of present-day knowledge of posturometry, and its implementation in training can help reduce the risk of body posture disorders in athletes. Methods. The examined group consisted of 48 athletes and 38 non-training college students. Body posture parameters were measured with the use of Posturometr-S. The normality of distribution was checked with the Shapiro-Wilk test, and the differences between the groups were measured with ANOVA and the Bonferroni post-hoc test. The level of statistical significance was set at p < 0.05. Results. The analysis of angle values revealed the widest and most similar measurements in the group of futsal players and soccer players. The analysis of variance proved statistically significant differences between the soccer players and futsal players (p = 0.003). The difference between the soccer players and non-training students was statistically significant. The highest γ angular value was measured in non-training students, followed by futsal players and soccer players. The statistical analysis revealed significant differences between the non-training students and futsal players, as well as non-training students and soccer players (p < 0.001). Conclusions. A complex assessment of athletes’ body posture is crucial in injury prevention. Training overloads may often lead to disorders of the organ of locomotion and affect the correct body posture in athletes. This, in turn, may result in pains and injuries.

scholarly journals Effect of the ketoprofen on the preemptive analgesia in female cats undergoing to ovariohysterectomy

Revista CERES ◽  
2017 ◽  
Vol 64 (1) ◽  
pp. 18-24
Author(s):  
Dayvid Vianêis Farias de Lucena ◽  
Fernanda Vieira Henrique ◽  
Amara Gyane Alves de Lima ◽  
Almir Pereira de Souza ◽  
Pedro Isidro da Nóbrega Neto
Keyword(s):  
Statistical Analysis ◽  
Preemptive Analgesia ◽  
Pain Scores ◽  
Significant Difference ◽  
Reduction Of Pain ◽  
Baseline Values ◽  
Student’S T ◽  
Level Of Significance ◽  
Postoperative Administration ◽  
Student’S T Test

ABSTRACT The objective of this study was to investigate the effect of the ketoprofen on the preemptive analgesia in female cats submitted to ovariohysterectomy. Sixteen healthy cats were distributed into two groups, with eight animals each, by means of a draw, in a preemptive group (PREG), in which the animal received ketoprofen (1 mg/kg) subcutaneously two hours before the surgery; and postsurgery group (POSG), in which ketoprofen (1 mg/kg) was administered subcutaneously immediately after surgery. In both groups, ketoprofen was given 24, 48 and 72 hours after the first adminstration. Heart and respiratory frequencies and glycemia were measured in all animals during the days first ten postsurgery. Analgesia was measured by assigning scores at zero, two, four, six, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216 and 240 hours after the surgical procedure. Statistical analysis was performed using two-way analysis of variance followed by Tukey's test to compare the moments and Student's t-test for comparison between groups. Pain scores were evaluated using test of U-Mann-Withney or Kruskall-Wallis, all at the 5% level of significance. Pain scores were significantly lower in PREG in M0, M6, M72, M96 and M120. No significant difference was found in the levels of glycemia in comparison to baseline values. Ketoprofen promotes postsurgery analgesia in female cats submitted to ovariohysterectomy and preemptive and postsurgery administration provides an earlier reduction of pain scores when compared to postoperative administration, only.

scholarly journals PRESEPSIN AND PROCALCITONIN VALUES TO DETERMINE THE PROGNOSIS OF UROSEPSIS

2018 ◽  
Vol 25 (2) ◽  
Author(s):  
Sofyan Rais Addin ◽  
Tarmono Djojodimedjo ◽  
Fikri Rizaldi
Keyword(s):  
Logistic Regression ◽  
Statistical Analysis ◽  
Prospective Study ◽  
Prognostic Value ◽  
Observational Prospective Study ◽  
Regression Test ◽  
The Difference ◽  
Logistic Regression Test ◽  
First Admission

Objective: To evaluate the prognostic value of presepsin and procalcitonin in patient with urosepsis. Material & Method: This is an observational prospective study. Patients who fulfilled the criteria for urosepsis at Soetomo Hospital Surabaya were enrolled. Presepsin and procalcitonin were measured at first admission. All patients were managed according to standard urosepsis therapy. At the 28th day of treatment, patients were evaluated and classified into survivor and non-survivor. The statistical analysis were tested with logistic regression test using software SPSS 23. Results: 30 urosepsis patients were included in this study with average age was 48.3 years (range 21-77 years). There were 23 survivor and 7 non-survivor. Mean presepsin values were higher in non-survivor than in survivor but the difference was not significant (4405 ± 4664 vs 4042 ± 2643, p=0.259). Mean procalcitonin value was significantly higher in non-survivor than in survivor (7.68 ± 6.81 vs 3.27 ± 2.74, p=0.013). Using the cut off value ≥2.24 ng/ml, procalcitonin can predict mortality in 28 days with sensitivity 71.4% and specificity 47.8%. Conclusion: Presepsin can not be used to determine the prognosis of urosepsis patients. Procalcitonin showed a significant correlation with outcome of urosepsis patients so it can be use to determine the prognosis of urosepsis.

scholarly journals PENGARUH PROFESIONALISME DAN KOMITMEN ORGANISASI TERHADAP KINERJA INTERNAL AUDITOR PADA BPK PERWAKILAN DKI JAKARTA

2019 ◽  
Vol 2 (2) ◽  
pp. 390
Author(s):  
Ratna Ningsih Radjak
Keyword(s):  
Statistical Analysis ◽  
Organizational Commitment ◽  
Hypothesis Testing ◽  
Multiple Regression ◽  
Regression Coefficient ◽  
Internal Auditor ◽  
Research Results ◽  
Internal Auditors ◽  
Level Of Significance ◽  
Positive Effect

This study aims to determine the Effect of Professionalism and Organizational Commitment on Internal Auditor Performance on DKI Jakarta Representative BPK. The method used to determine the Effect of Professionalism and Organizational Commitment on Internal Auditor Performance uses multiple regression statistical analysis. Based on the research results and hypothesis testing it can be proven that partially the professionalism variable has a positive effect on the performance of the Internal Auditor. While the Organizational Commitment variable significantly influences the performance of the Internal Auditor. Simultaneously the variable Professionalism and Organizational Commitment significantly influence the performance of Internal Auditors. The ability of the variable Professionalism and Organizational Commitment to explain changes in Auditor Performance is equal to 60.8% and the rest is caused by other factors not examined. Of the three variables that most dominantly affect the performance of the Internal Auditor is Professionalism, based on the value of the regression coefficient and the t-level of significance of the Professionalism variable is higher than the Organizational Commitment variable. Thus the Auditor Professionalism really helps the Auditor to improve his performance.

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