scholarly journals Progress Report in Neuroscience and Education: Experiment of Four Neuropedagogical Methods

2021 ◽  
Vol 11 (8) ◽  
pp. 373
Author(s):  
Leila Elouafi ◽  
Lotfi Said ◽  
Mohammed Talbi
Keyword(s):  
Significant Variation ◽  
Progress Report ◽  
The Mean

We endeavor through this work to demonstrate the effects of the introduction of neuroeducation data in schools and their application, via an experiment of neuropedagogical methods, to respond to the hypothesis that the contribution of neuroeducation may be beneficial for learning. During this study we designed four neuropedagogical methods and to measure their effect on the learning of students in the classroom we used an evaluation grid comprising six psychopedagogical parameters. The results show that no statistically significant variation of these psychoeducational parameters is observed between sexes. However, a variation is recorded for the four neuropedagogical methods between the groups in pre-test and post at the levels of the mean scores ranging from 5.15% to 440%.

Regional variations in calculated diastolic wall stress in rat left ventricle

1978 ◽  
Vol 235 (2) ◽  
pp. H247-H250 ◽  
Author(s):  
L. Role ◽  
D. Bogen ◽  
T. A. McMahon ◽  
W. H. Abelmann
Keyword(s):  
Heart Disease ◽  
Left Ventricle ◽  
Significant Variation ◽  
Diastolic Pressure ◽  
Wall Stress ◽  
Free Wall ◽  
Predisposing Factor ◽  
Rat Hearts ◽  
The Mean ◽  
Apical Aneurysm

Principal radii of curvature and wall thickness were measured at the apex and three other loci on the free wall of the left ventricle in 16 rat hearts that had been fixed at end-diastolic pressure. The law of Laplace was applied to calculate the mean tensile stress at each locus. No significant variation was found among the nonapical loci, but apical stress was approximately twice the stress calculated for any nonapical locus. The higher stresses that must be borne by the apex may be a predisposing factor for apical aneurysm in certain cardiomyopathies such as Chagas' disease. These higher stresses may also help to promote apical aneurysms in patients with ischemic heart disease.

scholarly journals Genetic variability of popping quality traits and microsatellite-based characterization of popcorn inbreds for utilization in breeding programme

2020 ◽  
Vol 80 (02) ◽  
Author(s):  
Deepa Pal ◽  
Vignesh Muthusamy ◽  
Rajkumar U. Zunjare ◽  
Sunil K. Jaiswal ◽  
Rashmi Chhabra ◽  
...  
Keyword(s):  
Significant Variation ◽  
Principal Coordinate Analysis ◽  
Hybrid Breeding ◽  
Effective Utilization ◽  
Dissimilarity Coefficients ◽  
Check Variety ◽  
The Mean ◽  
Positive Correlations ◽  
Mapping Populations

Popcorn is a popular snack item worldwide. The genetic base of popcorn germplasm is quite narrow, which resulted in limited number of popcorn hybrids. Here, a set of sub-tropically adapted 39 popcorn inbreds of exotic- and indigenous-origin, were characterized using morphological traits and molecular markers for their effective utilization in hybrid breeding. Significant variation for grain popping percentage (GPP: 86.0-98.0%), percent popping expansion (PPE: 1493-3213%) and volume after popping (VAP: 210-315ml) was observed. The mean PPE (2069%) and GPP (93.6%) among popcorn inbreds were higher than the popcorn check variety, VL popcorn (PPE: 1739%, GPP: 92%). Positive correlations were observed among GPP, PPE and VAP. Molecular characterization using 72 SSRs produced 237 alleles with a mean of 3.3 alleles per locus. Polymorphism information content ranged from 0.05 to 0.68, while Jaccard’s dissimilarity coefficients varied from 0.27-0.82. Principal coordinate analysis also depicted diverse genetic nature of inbreds. Cluster analysis grouped the inbreds into three major clusters each having 16, 18 and 5 inbreds. Contrasting inbreds were identified for development of mapping populations to identify loci governing desirable popping quality. The study also identified potential heterotic combinations. The information generated here assumes great significance in breeding for popcorn hybrids.

scholarly journals The depth of the facial nerve in the mastoid bone

2018 ◽  
Vol 4 (3) ◽  
pp. 666
Author(s):  
B. Y. Praveen Kumar ◽  
K. T. Chandrashekhar ◽  
M. K. Veena Pani ◽  
Sunil K. C. ◽  
Anand Kumar S. ◽  
...  
Keyword(s):  
Facial Nerve ◽  
Temporal Bone ◽  
Significant Variation ◽  
Canal Wall ◽  
Stylomastoid Foramen ◽  
Cortical Mastoidectomy ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
The Mean ◽  
Temporal Bones

<p class="abstract"><strong>Background:</strong> The hallmark of the temporal bone is variation. Various important structures like the facial nerve run in the temporal bone at various depths which can be injured during mastoidectomy.</p><p class="abstract"><strong>Methods:</strong> Twenty wet cadaveric temporal bones were dissected. A cortical mastoidectomy was performed followed by a canal wall down mastoidectomy and the depth of the vertical segment of the facial nerve in the mastoid was determined.  </p><p class="abstract"><strong>Results:</strong> The mean depth of the second genu was 13.82 mm. The mean depth of the stylomastoid foramen was 12.75 mm and the mean distance from the annulus at 6’0 clock to the stylomastoid foramen was 10.22 mm.</p><p><strong>Conclusions:</strong> There is significant variation in the average depth of the facial nerve in the mastoid. </p>

scholarly journals Evolution and factors influencing somatic cell count in raw milk from farms in Viçosa, state of Minas Gerais

2017 ◽  
Vol 39 (4) ◽  
pp. 393
Author(s):  
Leonardo Cotta Quintão ◽  
Adriano França da Cunha ◽  
Lindomar José Bragança ◽  
Kamila Soares Coelho ◽  
Mariana Fonseca Nunes ◽  
...  
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Significant Variation ◽  
Somatic Cell Count ◽  
Raw Milk ◽  
Minas Gerais ◽  
Milk Samples ◽  
Factors Influencing ◽  
The Mean ◽  
Structured Questionnaire

The somatic cell count (SCC) of refrigerated raw milk reflects the occurrence of mastitis in the herd and the management of rural property. Therefore, this study aimed to evaluate the SCC of the refrigerated raw milk and its determinant factors in dairy properties of Viçosa, State of Minas Gerais. Monthly, milk samples were taken from 44 cooling tanks during 2012. A structured questionnaire was applied to evaluate the production and management characteristics of the herds. There was a significant variation (p < 0.05) in the mean SCC of the milk, which was lower from June to August. Higher mean SCC and percentages of samples above the limit set by the legislation were observed in months of higher rainfall and ambient temperature (p < 0.05). Mechanical milking, lower milk yield, productivity, inadequate milking procedures, equipment hygiene, and water quality were all factors that influenced (p < 0.05) the SCC of raw refrigerated milk. Milker training is required for production of low SCC milk. 

Age, growth and mortality of redfish Centroberyx affinis

2001 ◽  
Vol 52 (4) ◽  
pp. 637 ◽  
Author(s):  
A. K. Morison ◽  
K. R. Rowling
Keyword(s):  
Growth Rate ◽  
Significant Variation ◽  
Fork Length ◽  
Age And Growth ◽  
Average Error ◽  
Natural Mortality ◽  
Commercial Catch ◽  
Thin Sections ◽  
The Mean ◽  
Age Estimates

Age and growth of 5678 redfish, collected during 1991–98 from Australia’s South East Fishery, were estimated from thin sections of otoliths. A maximum age of 44 years was recorded for a 30 cm (fork length) female, but 80%of females in the commercial catch were <10 years, and 80%of males were <13 years. The largest was a 34 cm female estimated to be 36 years old. Repeated age estimates of a subsample revealed an average error of 3.79%. There was significant variation in the mean length-at-age among years, and there were significant effects for age*year, age*sex, age*region, region*year, and sex*region*year interactions. Assessments of the fishery have assumed a single stock, because tagging results from the 1980s indicate movement of redfish along the coast. This study found consistent differences in sex ratio and growth rate between regions, which indicate some structuring within the population. However, the differences in growth rates are not consistent among years and could not be explained by differences in depths fished, suggesting a more dynamic situation than spatially segregated stocks. Estimates of natural mortality ranged from 0.07 to 0.11 year–1 and differed between regions.

scholarly journals Variation in morphometric and meristic traits of Aspidoparia morar from Brahmaputra and Barak Rivers of Assam, India

2014 ◽  
Vol 6 (1) ◽  
pp. 262-266
Author(s):  
Simanku Borah ◽  
Asha T. Landge ◽  
Birendra K. Bhattacharjya ◽  
Sushant K. Chakraborty ◽  
Karankumar K. Ramteke ◽  
...  
Keyword(s):  
Significant Variation ◽  
Morphometric Traits ◽  
Brahmaputra River ◽  
Barak River ◽  
The Family ◽  
Eye Diameter ◽  
Meristic Variation ◽  
The Mean ◽  
Fin Length ◽  
Pelvic Fin

The minor carp, Aspidoparia morar is a benthopelagic fish belonging to the sub-family Danioninae under the family Cyprinidae. It has emerged as the single most dominant species in the river Brahmaputra in Assam. In the present study, 240 specimens were collected from Guwahati and Tezpur in the Brahmaputra River and Silchar in the Barak River to investigate the morphometric and meristic variation among the populations. For this a total of 20 morphometric traits and 11 meristic traits were studied. The mean lengths for most of the morphometric traits were higher for the Barak River except eye diameter, inter orbital length and anal fin length which were significantly higher on the Brahmaputra River, while the post orbital length and pelvic fin length were found to be almost equal. The regressions of standard length with all the morphometric traits except pelvic fin length, pelvic fin base, pectoral fin length, dorsal fin length, anal fin length, pre orbital length, post orbital length, inter orbital length and eye diameter showed significant variation between the rivers. Two meristic traits viz. branched rays in anal fin and gill rakers on the first gill arch also showed significant variation in the samples of the rivers.

scholarly journals HISTOMORPHOMETRIC ESTIMATION OF AGE FROM BONE SAMPLES OF NIGERIANS

2021 ◽  
Vol 6 (2) ◽  
pp. 67-76
Author(s):  
C. D. Orupabo ◽  
L. E. Oghenemavwe ◽  
T. E. Diamond
Keyword(s):  
Age Estimation ◽  
Significant Variation ◽  
Descriptive Statistics ◽  
Haversian Canal ◽  
Canal Diameter ◽  
Bone Fragments ◽  
Bivariate Regression ◽  
The Mean ◽  
Secondary Osteons ◽  
Strong Inverse Relationship

Background. Age estimation is crucial in creating the biological profile of unknown skeletal remains and recently there is emphasis on the need to develop population specific forensic baseline data for easy identification of these remains. Objective. The aim of this study is to estimate age from the histomorphometric features of the bones of Nigerians. Methods. Fragments of non-pathologic bone samples were collected during orthopaedic procedures. Ground sections were prepared using Modified Frost’s manual method of bone preparation to determine the following histologic parameters; haversian canal diameter (HCD), primary and secondary osteons, number of osteon fragments and non-haversian canal as well as haversian canal area (HCA). 29 subjects aged 35 to 85 years old were used for the study. Bone fragments included samples from the femur, tibia, humerus, and the vertebrae. Data obtained were subjected to descriptive statistics, Pearson’s correlation, bivariate regression equation, Student t-test and analysis of variance (ANOVA). Results. The mean age for our population was 58.86 years old. ANOVA showed significant variation in the average HCD for the various regions: humerus=8.45±2.48, femur=7.09±4.06, tibia=8.70±2.52 and verte­brae=3.69±0.73. There was a strong inverse relationship between age and primary osteons. The total number of osteon fragments increased with age while total number of primary osteons and average HCD decreased with age. The HCA, though statistically insignificant, also decreased with age. Conclusion. Our findings show that three histomorphometric parameters showed significant correlation with age: osteon fragments (OS-f), primary osteons (OS-p) and HCD. The histomorphometric parameters were therefore relevant in age estimation.   Objective: The aim of this study is to estimate age from the histologic features of the bones of Nigerians.   Methods: Fragments of non-pathologic bone samples were collected during orthopaedic procedures. Ground sections were prepared using Modified Frost’s manual method of bone preparation to determine the following histologic parameters; haversian canal diameter (HCD), primary and secondary osteons, number of osteon fragments and non haversian canal as well as haversian canal area (HCA). 29 subjects aged 35 to 85 years were used for the study. Bone fragments included samples from the femur, tibia, humerus, and the vertebrae. Data obtained were subjected to descriptive statistics, Pearson’s correlation, bivariate regression equation, student t-test and Analysis of variance (ANOVA).   Results:  The mean age for our population was 58.86 years. ANOVA shows significant variation in the average HCD for the various regions: humerus=8.45±2.48, femur=7.09±4.06, tibia=8.70±2.52 and vertebrae=3.69±0.73. There is a strong inverse relationship between age and primary osteons. The total number of osteon fragments increased with age while total number of primary osteons and average HCD decreased with age. The HCA though statistically insignificant, also decreased with age.   Conclusion: Our findings show that three histomorphometric parameters showed significant correlation with age: osteon fragments (OS-f), primary osteons (OS-p) and HCD. The histomorphometric parameters are therefore relevant in age estimation.   Key words: Age estimation, Histomorphometric parameters, Nigerians, Forensics

scholarly journals Perennial Flax: A Potential Cut Flower Crop

HortScience ◽  
2022 ◽  
Vol 57 (2) ◽  
pp. 221-230
Author(s):  
David G. Tork ◽  
Neil O. Anderson ◽  
Donald L. Wyse ◽  
Kevin J. Betts
Keyword(s):  
Significant Variation ◽  
Vase Life ◽  
Cut Flower ◽  
The Mean ◽  
Selection For

The genus Linum L. contains ≈200 primarily blue-flowered species, including several ornamentals, yet no reports exist regarding the cut flower potential of this genus. The objective of this study was to evaluate the cut flower potential of perennial flax cultivars (L. perenne L. ‘Blue Flax’ and ‘Sapphire’; Expt. 1, 2018) and accessions (L. austriacum L., L. lewisii Pursh., and L. perenne; Expt. 2, 2019), and record traits that will enable breeding and selection for improved cut flower performance. The mean vase life across both cultivars in Expt. 1 was 9.2 days. In Expt. 2, L. perenne had the longest average vase life (9.3 days), followed by L. austriacum (9.1 days) and L. lewisii (8.3 days). The floral preservative (Floralife 300) significantly increased vase life by an average of 1.7 days in Expt. 1, and 1.6 days in Expt. 2, and resulted in a significantly greater number of flowers (≈2x) in both experiments. Significant variation was observed among genotypes for most traits, including vase life (6.2 to 11.3 days) and number of flowers (1.3 to 10.5), highlighting the opportunities for improving the potential of cut flower perennial flax through breeding.

scholarly journals EP03 An audit of glucocorticoid prescription in patients with giant cell arteritis

Rheumatology ◽  
2020 ◽  
Vol 59 (Supplement_2) ◽  
Author(s):  
Hairul Hadi Ariff ◽  
Abid Awisat ◽  
Jack Arnold ◽  
Hudaifa Al Ani ◽  
Lorraine O' Neill ◽  
...  
Keyword(s):  
Side Effects ◽  
Giant Cell Arteritis ◽  
Giant Cell ◽  
Significant Variation ◽  
Medical Advice ◽  
High Dose ◽  
Daily Number ◽  
Daily Dose ◽  
Duration Of Disease ◽  
The Mean

Abstract Background Giant cell arteritis (GCA) is treated with high dose glucocorticoids and progressively reduced over months to years. We undertook an audit to evaluate self-reported adherence to the original recommended glucocorticoid course and explored reasons for any variation. Methods We recruited patients attending a single rheumatology department over 18 months. Respondents were given two self-administered questionnaires to record information regarding their use of glucocorticoids during the last 7 days and during the last 6 months. We retrieved 132 questionnaires (of whom 6 were discarded as incomplete). All data was analysed using SPSS Statistics v22. Results Of the 126 patients (mean age 74.9 ± 7.7 years), 59% were female. The mean duration of disease was 22.5 ± 19.1 months in patients with GCA and 32.9 ± 29.9 months in those with GCA and polymyalgia rheumatica (PMR). The mean daily number of medications taken was 9.2 ± 5.2 (range: 1 - 30); the mean number of types of daily tablets taken was 5.0 ± 2.1 (range: 1 - 10). The mean daily number of glucocorticoid tablets taken was 3.2 ± 2.6 (range: 0 - 12), with a mean daily dose of 11.1 ± 10.3 mg (range: 0 - 60 mg). Overall, in the last 7 days, 22% and in last 6 months, 40% of patients were not following their original recommended steroid regimens (Table 1). The total mean glucocorticoid dose in the last 7 days group (n = 81) was 77.8 ± 70.1 mg/week (11.1 ± 10.1 mg/day) whilst the total mean glucocorticoid dose in the last 6 months group (n = 45) was 1782.0 ± 1543.3 mg/6 month (9.9 ± 8.6 mg/day). Most respondents stated their glucocorticoid non-adherence was due to medical advice; other reasons included forgetting, fear of side effects, or confusion about different preparations of prescribed glucocorticoids. The presence of PMR did not influence glucocorticoid adherence. Conclusion There is significant variation in the use of glucocorticoids compared to the original starting regimen in patients with GCA, with or without PMR. However, the amount of the discrepancy is small. The commonest reason for non-adherence was medical advice received from either primary or secondary care. Disclosures H. Ariff: None. A. Awisat: None. J. Arnold: None. H. Al ani: None. L. O' neill: None. M. Rodriguez: None. R. Luqmani: None.

Microbial Control of the Emerald Ash Borer (Coleoptera: Buprestidae) Using Beauveria bassiana (Hypocreales: Cordycipitaceae) by the Means of an Autodissemination Device

2020 ◽  
Vol 113 (6) ◽  
pp. 2657-2665
Author(s):  
Narin Srei ◽  
Claude Guertin ◽  
Robert Lavallée ◽  
Marie-Ève Lajoie ◽  
Christian Brousseau ◽  
...  
Keyword(s):  
Beauveria Bassiana ◽  
Significant Variation ◽  
Biocontrol Agent ◽  
Microbial Control ◽  
Emerald Ash Borer ◽  
Experimental Period ◽  
Tree Density ◽  
The Mean ◽  
Fungus Beauveria Bassiana

Abstract The FraxiProtec, an autodissemination device loaded with the fungus Beauveria bassiana isolate CFL-A, was tested in the field to evaluate its potential to infect emerald ash borer adults and reduce their populations. During the 2-yr experimental period, the dispersion of B. bassiana-infected adults was also documented to assess the dissemination capacity of the biocontrol agent beyond the treated areas. The mean percentage of infected emerald ash borer in 2017 and 2018 in 15 treated sites was 43.3 ± 2.9% and 39.7 ± 3.9%, respectively, and no significant variation was observed over the tested years. Furthermore, a 40% significant reduction of the mean emerald ash borer population growth per tree in treated sites was recorded when compared to the control sites. Emerald ash borer infected with B. bassiana isolate CFL-A were collected from baited sticky traps in the sentinel stations in the area surrounding the FraxiProtec-treated sites. Even at a distance of 125 m, an average of 9.4 ± 2.6% infected emerald ash borer were collected. Finally, exploratory analyzes were carried out on parameters such as the area to be treated, ash tree density, and FraxiProtec density to document potential relationships, which could be used in the determination of a prescription.

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