COLONY OF THE FUNGUS Aspergillus oryzae AND SELF-AFFINE FRACTAL GEOMETRY OF GROWTH FRONTS

Fractals ◽  
1993 ◽  
Vol 01 (01) ◽  
pp. 11-19 ◽  
Author(s):  
SHU MATSUURA ◽  
SASUKE MIYAZIMA
Keyword(s):  
Aspergillus Oryzae ◽  
Environmental Conditions ◽  
Fractal Geometry ◽  
Nutrient Concentration ◽  
Incubation Temperature ◽  
Characteristic Exponent ◽  
Growth Front ◽  
Favorable Condition ◽  
The Self ◽  
The Mean

A variety of colony shapes of the fungus Aspergillus oryzae under varying environmental conditions such as the nutrient concentration, medium stiffness and incubation temperature are obtained, ranging from a homogeneous Eden-like to a ramified DLA-like pattern. The roughness σ(l, h) of the growth front of the band-shaped colony, where h is the mean front height within l of the horizontal range, satisfies the self-affine fractal relation under favorable environmental conditions. In the most favorable condition of our experiments, its characteristic exponent is found to be a little larger than that of the 2-dimensional Eden model.

Morphology of the Fungus Aspergillus Oryzae and Nidulans

1995 ◽  
Vol 407 ◽  
Author(s):  
Sasuke Miyazima ◽  
Shu Matsuura
Keyword(s):  
Aspergillus Oryzae ◽  
Environmental Conditions ◽  
Nutrient Concentration ◽  
Growth Front ◽  
The Self ◽  
The Mean

ABSTRACTA variety of growth manner of the fungus Aspergillus oryzae and nidulans under varying environmental conditions such as the nutrient concentration, and medium stiffness are investigated, ranging from a homogeneous Eden-like to a ramified DLA-like pattern. The roughness σ(i, h) of the growth front of the band-shaped colony, where h is the mean front height within l of the l horizontal range, satisfies the self-affine fractal relation under favorable environmental conditions.

Incubation Temperature Influences the Duration of Egg Hatching and Early Development in the Boreal Digging Frog, Kaloula Borealis

2020 ◽  
Vol 3 (1) ◽  
pp. ACCEPTED
Author(s):  
Rho-Jeong Rae
Keyword(s):  
Water Temperature ◽  
Early Life ◽  
Rainy Season ◽  
Incubation Temperature ◽  
Life Stages ◽  
Early Life Stages ◽  
Egg Hatching ◽  
Significant Difference ◽  
The Mean ◽  
Hatching Rates

This study investigated the boreal digging frog, Kaloula borealis, to determine the egg hatching period and whether the hatching period is affected by incubation temperature. The results of this study showed that all the eggs hatched within 48 h after spawning, with 28.1% (±10.8, n=52) hatching within 24 h and 99.9% (±0.23, n=49) within 48 h after spawning. A significant difference was noted in the mean hatching proportion of tadpoles at different water temperatures. The mean hatching rates between 15 and 24 h after spawning was higher at a water temperature of 21.1 (±0.2) °C than at 24.1 (±0.2) °C. These results suggest that incubation temperature affected the early life stages of the boreal digging frog, since they spawn in ponds or puddles that form during the rainy season.

A Comparison of Physiological Demand between Self-Propelled and Motorized Treadmill Exercise

2018 ◽  
Vol 7 (4) ◽  
pp. 13-21
Author(s):  
Todd Backes ◽  
Charlene Takacs
Keyword(s):  
Respiratory Exchange Ratio ◽  
Treadmill Exercise ◽  
Cardiopulmonary Exercise Testing ◽  
Mean Value ◽  
The Self ◽  
Mixing Chamber ◽  
Wide Range ◽  
The Subject ◽  
The Mean ◽  
Computer Controlled

There are a wide range of options for individuals to choose from in order to engage in aerobic exercise; from outdoor running to computer controlled and self-propelled treadmills. Recently, self-propelled treadmills have increased in popularity and provide an alternative to a motorized treadmill. Twenty subjects (10 men, 10 women) ranging in age from 19-23 with a mean of 20.4 ± 0.8 SD were participants in this study. The subjects visited the laboratory on three occasions. The purpose of the first visit was to familiarize the subject with the self-propelled treadmill (Woodway Curve 3.0). The second visit, subjects were instructed to run on the self-propelled treadmill for 3km at a self-determined pace. Speed data were collected directly from the self-propelled treadmill. The third visit used speed data collected during the self-propelled treadmill run to create an identically paced 3km run for the subjects to perform on a motorized treadmill (COSMED T150). During both the second and third visit, oxygen consumption (VO2) and respiratory exchange ratio (R) data were collected with COSMED’s Quark cardiopulmonary exercise testing (CPET) metabolic mixing chamber system. The VO2 mean value for the self-propelled treadmill (44.90 ± 1.65 SE ml/kg/min) was significantly greater than the motorized treadmill (34.38 ± 1.39 SE ml/kg/min). The mean R value for the self-propelled treadmill (0.91 ± 0.01 SE) was significantly greater than the motorized treadmill (0.86 ± 0.01 SE). Our study demonstrated that a 3km run on a self-propelled treadmill does elicit a greater physiological response than a 3km run at on a standard motorized treadmill. Self-propelled treadmills provide a mode of exercise that offers increased training loads and should be considered as an alternative to motorized treadmills.

Effect of Self - Care Program on the Self- Esteem of Multiple Sclerosis Patients

2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
H. Madani ◽  
H. Navipoor ◽  
P. Roozbayani
Keyword(s):  
Multiple Sclerosis ◽  
Self Care ◽  
Care Program ◽  
Self Esteem ◽  
The Self ◽  
Self Report ◽  
The Mean ◽  
Muscular Spasm ◽  
Multiple Sclerosis Patients ◽  
Paired T Test

Aims:According to decreased self- esteem in multiple sclerosis (MS) patients, it is necessary to utilize appropriate methods in order to improve self- esteem in MS patients. So this study was conducted on patients with MS supported by the Iranian MS society for determining the effect of self - care program on their self- esteem.Method:In this semi - experimental study 34 patients with MS who were not in the acute phase of disease were selected. The data were collected via personal questionnaires, problem list, Cooper and smith standard questionnaire for self- esteem and self report check lists. Self - care program(self - care for muscular spasm, fatigue, constipation and amnesia and …) was educated, then it was performed for one month period and the data were analyzed using paired t- test, wilcoxon, croscal - wallis and manwithney tests.Results:Application of self - care program improve the self- esteem and reduced some symptoms such as muscular spasm, fatigue, constipation and amnesia in MS patients. The mean valve of self- esteem increased from 54 before performing the program to 68 after the program ( p < 0.05).Conclusion:Using self-care program can be an effective method for improving self- esteem of MS patients.

scholarly journals Self-care in heart failure patients

2015 ◽  
Vol 23 (4) ◽  
pp. 578-586 ◽  
Author(s):  
Ana Paula da Conceição ◽  
Mariana Alvina dos Santos ◽  
Bernardo dos Santos ◽  
Diná de Almeida Lopes Monteiro da Cruz
Keyword(s):  
Heart Failure ◽  
Self Care ◽  
Left Ventricular ◽  
The Self ◽  
Left Ventricular Ejection ◽  
Ventricular Ejection Fraction ◽  
Failure Index ◽  
Joint Monitoring ◽  
The Mean ◽  
Care Behavior

AbstractObjective: to describe self-care behavior and its associated factors in a sample of heart failure Brazilian patients.Method: descriptive cross-sectional study with non-probabilistic sample of 116 ambulatory patients undergoing heart failure treatment. Self-care was evaluated using the Self-Care of Heart Failure Index, (scores ≥70 points=appropriate self-care). Association tests were applied, considering a descriptive level of 0.05.Results: the mean age of participants was 57.7 (SD =11.3) years; 54.3% were male; the mean schooling was 5.5 (SD = 4.0) years; and 74.1% had functional class II-III. The mean scores on the subscales of the Self-Care of Heart Failure Index indicated inappropriate self-care (self-care maintenance: 53.2 (SD =14.3), selfcare management: 50.0 (SD = 20.3) and self-care confidence: 52.6 (SD=22.7)) and it was found low frequencies of participants with appropriate self-care (self-care maintenance, 6.9%), self-care management (14.7%) and self-care confidence (19%). Higher scores of the Self-Care of Heart Failure Index were associated with: reduced left ventricular ejection fraction (p=0.001), longer time of experience with the disease (p=0.05) and joint monitoring by physician and nurse (p=0.007).Conclusion: investments are needed to improve the self-care behavior and the nursing can play a relevant role in this improvement.

Étude du développement hétéroblastique chez quelques espèces du genre Medicago

1983 ◽  
Vol 61 (8) ◽  
pp. 2212-2223 ◽  
Author(s):  
Catherine Damerval
Keyword(s):  
Environmental Conditions ◽  
Mean Value ◽  
Annual Species ◽  
The Mean ◽  
Shape Changes

Seven foliar types were defined for the first leaf in the heteroblastic development of seven annual species of Medicago L. Among the species, M. aculeata and M. murex have a typical foliar form. There is no relation between the first leaf and the succeeding trifoliolate one. The shape changes of the middle foliole of the trifoliolate leaves during the development allowed to establish a foliar sequence whose mean length was used to suggest an evolutive hierarchy among the taxa. Five quantitative variables were analysed on the first and on the sixth leaf for stability according to environmental conditions; the two stable variables (L/l and L/Pl) have a best discriminant value for the first leaf than for the sixth one. However, intraspecific heterogeneity is high in both cases. A relation between the flowering precocity and the mean value of one of the sixth leaf's variables (that is, the ratio of the length to the width of the foliole limb) was demonstrated in four species only. The heteroblastic development not only allows to establish a relation between foliar stage and physiologic age, but it itself constitutes a very good taxonomic and systematic criterium; it allowed to identify the seven species studied.

scholarly journals Self-efficacy of osteoporosis preventive behaviors and its predictors in Iranian adolescents

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Fatemeh Ghelichkhani ◽  
Mojgan Mirghafourvand ◽  
Elahe Bahrami-Vazir ◽  
Esmaeil Vali ◽  
Azam Mohammadi
Keyword(s):  
High School ◽  
High School Students ◽  
Self Efficacy ◽  
General Linear Model ◽  
The Self ◽  
Preventive Behaviors ◽  
School Students ◽  
Osteoporosis Knowledge ◽  
The Mean ◽  
Female High School

AbstractIntroductionAlmost all the bone mass in females is accumulated during adolescence and especially in the years immediately following menstruation. Self-efficacy plays an important role in moderating the relationship between knowledge and behavior. This study aimed to determine the self-efficacy of osteoporosis preventive behaviors and its predictors in female high school students.MethodologyThis descriptive-analytical cross-sectional study was conducted on 330 female high school students in Saveh, Iran during 2016–2017. A two-stage cluster sampling method was used to select the participants. Data were collected using a socio-demographic questionnaire, the Osteoporosis Knowledge Test (OKT) and the Osteoporosis Self-Efficacy Scale (OSES). A general linear model was used to determine the self-efficacy predictors of osteoporosis preventive behaviors.ResultsThe mean [standard deviation (SD)] of the total OKT score was 11.08 (4.08) of attainable range from 0 to 32. The mean (SD) of the total OSES score was 121.97 (37.36) of attainable range from 0 to 200. The mean (SD) of the exercise and calcium subscales of OSES were 58.39 (22.56) and 63.57 (21.02), respectively. There were significant relationships between the total OKT score with the total OSES score (r = 0.16, p = 0.003) and its subscales, including exercise (r = 0.16, p = 0.002) and calcium (r = 0.11, p = 0.03) scores. According to the adjusted general linear model, the variables of economic status, educational level and osteoporosis knowledge were predictors of the self-efficacy in the studied students.ConclusionFindings suggested that most of the students had moderate levels of knowledge and self-efficacy regarding osteoporosis preventive behaviors; therefore, improving the knowledge and self-efficacy of this group can play a significant role in promoting their health.

scholarly journals Personality development from 12 to 18 years of age: changes in mean levels and structure of traits

2004 ◽  
Vol 18 (6) ◽  
pp. 445-462 ◽  
Author(s):  
Jüri Allik ◽  
Kaia Laidra ◽  
Anu Realo ◽  
Helle Pullmann
Keyword(s):  
Personality Traits ◽  
Personality Development ◽  
The Self ◽  
Age Changes ◽  
Cross Sectional ◽  
Adult Personality ◽  
12Th Grade ◽  
Self Reports ◽  
Change In The Mean ◽  
The Mean

The Estonian NEO‐FFI was administered to 2650 Estonian adolescents (1420 girls and 1230 boys) aged from 12 to 18 years and attending 6th, 8th, 10th, or 12th grade at secondary schools all over Estonia. Although the mean levels of personality traits of Estonian adolescents were quite similar to the respective scores of Estonian adults, there was a developmental gap in Agreeableness and Conscientiousness. Three of the five personality dispositions demonstrated a modest cross‐sectional change in the mean level of the trait scores: the level of Openness increased and the levels of Agreeableness and Conscientiousness decreased between 12 and 18 years of age. Although the five‐factor structure of personality was already recognizable in the sample of 12‐year‐old children, it demonstrated only an approximate congruence with the adult structure, suggesting that not all children of that age have developed abilities required for observing one's own personality dispositions and for giving reliable self‐reports on the basis of these observations. The self‐reported personality trait structure matures and becomes sufficiently differentiated around age 14–15 and grows to be practically indistinguishable from adult personality by the age of 16. Personality of adolescents becomes more differentiated with age: along with the growth of mental capacities the correlations among the personality traits and intelligence become smaller. Copyright © 2004 John Wiley & Sons, Ltd.

scholarly journals Evaluation of Genetic behavior of Sunflower (Helianthus annuus L.) As Effect by Planting Dates

2019 ◽  
Vol 9 (1) ◽  
pp. 150-155
Author(s):  
Abdullah F. Serheed ◽  
Haider T. Hussein
Keyword(s):  
Helianthus Annuus ◽  
Correlation Coefficient ◽  
Environmental Conditions ◽  
Genetic Variance ◽  
Planting Dates ◽  
Environmental Variance ◽  
Growing Seasons ◽  
The Mean ◽  
Phenotypic Variations ◽  
Coefficient Stability

Afield experiment was carried out during the spring and autumn seasons of 2016 and 2017 in AL- Musaib city / 40 km north of Babylon Provence. Two hybrids of sunflower( shamus, French hybrid (Euroflor) were used to evaluate the performance of the two cultivars at both growing seasons as well as knowledge of genetic behavior by studying the genetic and phenotypic variations, heritability percent, genetic and phenotypic coefficient, stability and persistence of the two cultivars .The results showed significant differences of the studied traits, as the genetic genotype (Shamus) most of the characteristics, especially in yield for two seasons.The genetic variance was higher than the environmental variance for the two seasons indicating that the two cultivars followed the same behavior. The heritability percent the dominant sense was high for most of the traits. The genetic and phenotypic variations between the mean and the high were different for the two seasons, the correlation coefficient was significant, for both cultivars, indicating the appropriateness of the two genotypes for the country's environmental conditions.

Memoirs: The Effect of a Temperature Gradient on the Early Development of the Chick

1928 ◽  
Vol s2-72 (287) ◽  
pp. 419-445
Author(s):  
MARIA A. TAZELAAR
Keyword(s):  
Temperature Gradient ◽  
Incubation Temperature ◽  
Primitive Streak ◽  
Blood System ◽  
Area Vasculosa ◽  
Exact Position ◽  
The Mean ◽  
Late Stages ◽  
Lateral Temperature

1. Owing to the difficulty of ascertaining the exact position of the embryo in the egg there was much waste of material. Hens' eggs are not ideal for temperature gradient experiments, for the mean between the temperatures which can be used is below normal incubation temperature. The egg of a cold-blooded animal would be far simpler to deal with. 2. The part most easily affected by a temperature gradient was the area vasculosa and its blood-vessels. This was to be expected, since the size of this extra-embryonic part is not strictly limited; the arrangement of the blood system of the area vasculosa was also modified in some cases. 3. Slight disproportion of parts was effected in some cases. The head was sometimes slightly more developed than the posterior end, and in some cases the posterior limbs were precociously developed. Differences in size between the limb buds on each side also occurred. The ratio of embryo to primitive streak was decreased considerably in the case of two embryos, treated with antagonistic gradients. 4. In some embryos treated with a lateral temperature gradient the somites had become shifted up on the heated side. The greatest effect was obtained in an embryo whose somites of one side alternated with those of the opposite side. It is possible that this condition may be regulated after normal incubation; results, however, were too few for certainty. 5. The numbers used were not sufficient for the conclusive determination of the degree of regulation which experimentally treated embryos underwent. However, all late stages when examined were normal; whether these cases were correctly treated or not it is impossible to say.

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