scholarly journals Experimental Study on the Evaluation and Influencing Factors on Individual’s Emergency Escape Capability in Subway Fire

2021 ◽  
Vol 18 (19) ◽  
pp. 10203
Author(s):  
Na Chen ◽  
Ming Zhao ◽  
Kun Gao ◽  
Jun Zhao
Keyword(s):  
Influencing Factors ◽  
Negative Correlation ◽  
Contact Time ◽  
Significant Negative Correlation ◽  
Emergency Evacuation ◽  
Practical Significance ◽  
Physiological Data ◽  
Subway Station ◽  
Escape Time ◽  
The Mean

Studying an individual’s emergency escape capability and its influencing factors is of great practical significance for evacuation and escape in subway emergencies. Taking Zhengzhou Zijing Mountain Subway station as the prototype, and using VR technology, a virtual subway fire escape scene was built. Combined with the total escape time, the total contact time with fire, and the total contact time with smoke, it proposed a calculation formula on emergency escape capability. A total of 34 participants with equal gender distribution were recruited to carry out the virtual subway fire escape experiment, and participants’ physiological data (heart rate variability, skin conductance) were real-time recorded by ErgoLAB V3.0 throughout the whole experiment. The emergency escape capability of each participant was evaluated quantitatively, and the related influencing factors were analyzed. The results show that for the age ranges (19–22 years old) in the experiment, the emergency escape capability of women is significantly lower than that of men (p < 0.05); although there is no significance in emergency escape capability in DISC personality types (p > 0.05), the mean emergency escape capability of people with influence personality type is the worst, and that of people with compliance type is the best; during virtual fire escape vs. baseline, Mean_SC and Mean_HR both increased very significantly (all p < 0.01), and participants were under stress during their virtual fire escape. There is a significant negative correlation between emergency escape capability and LF_increase_rate (p < 0.05), and a remarkably significant negative correlation between emergency escape capability and LF/HF_increase_rate (p < 0.01); the greater the increase rate of LF or LF/HF, the smaller the emergency escape capability, with excessive stress probably not being conducive to emergency escape. There is a very significant negative correlation between an individual’s emergency escape capability and the degree of familiarity with the Zijing Mountain subway station (p < 0.01). The findings provide references and suggestions on the emergency management and emergency evacuation for government and subway departments.

Chemical prediction of water activity in processed cheese

1989 ◽  
Vol 56 (4) ◽  
pp. 665-668 ◽  
Author(s):  
María A. Esteban ◽  
Andrés Marcos
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Water Activity ◽  
Negative Correlation ◽  
Linear Regression Analysis ◽  
Significant Negative Correlation ◽  
Regression Equation ◽  
Low Fat ◽  
Two Samples ◽  
The Mean

SummaryBy linear regression analysis, a highly significant negative correlation (r = −0·96) was found between the mean ash concentration values (g/100 g moisture) and water activity (aw) of six types of processed cheeses (low-fat, semi-fat, fat, extra-fat, double fat and special). The regression equation aw = 0·9951 − 0·0032* (ash), applied to 40 cheese samples, yielded aw values which differed by < 0·005 aw units from those measured experimentally in 75% of the samples. The maximum differences between the calculated and experimental aw values (found in only two samples) were ±0·01 aw units.

scholarly journals Effect of soybean plant phenols and flavonoid on the mean leaf area consumed by Spodopteralitura and Spilosoma obliqua larvae

2016 ◽  
Vol 8 (4) ◽  
pp. 1931-1936
Author(s):  
Anchala Nautiyal ◽  
Neeta Gaur ◽  
Kamendra Singh ◽  
Preeti Sharma
Keyword(s):  
Leaf Area ◽  
Negative Correlation ◽  
Phenolic Content ◽  
Significant Negative Correlation ◽  
Correlation Study ◽  
Soybean Plant ◽  
Phenol Content ◽  
Flavonoid Content ◽  
Plant Phenols ◽  
The Mean

The aim of the present investigation was to study the effect of soybean plant phenols and flavonoid content on the mean leaf area consumed by Spodopteralitura and Spilosoma obliqua larva. Phenols and flavonoid content in methanolic leaf extract of thirty three genotypes of soybean were determined by spectrophotometrically. Thehighest and lowest phenolic content were found in genotypes JS-20-41(2.2±0.073 mg/g) and CSB 904 (0.45 ±0.11 mg/g), respectively. While the highest and lowest flavonoid content was found in genotypes SL 979 4.686± 0.062 mg QE/ g, respectively. In correlation study a highly significant negative correlation was observed between mean leaf area consumed (cm2) by S. litura, phenol content (-0.741 ) and flavonoid content (-0.737) similarly a highly significant negative correlation was observed between mean leaf area consumed by S. obliqua, phenol content (-0.728) and flavonoid content (-0.736) in leaves. Hence it can be concluded that, the genotypes which were having higher phenol and flavonoid content in their leaves offered resistance against S. litura and S. boliqua in soybean.

scholarly journals EFFECTS OF SEASON AND LITTER SIZE ON GESTATION LENGTH IN SWINE

2021 ◽  
Vol 4 (1) ◽  
pp. 43-51
Author(s):  
G. N. Egbunike ◽  
J. Steinbach
Keyword(s):  
Litter Size ◽  
Negative Correlation ◽  
Significant Negative Correlation ◽  
Seasonal Effect ◽  
Gestation Length ◽  
Large White ◽  
Mean Values ◽  
The Mean

488 gestations (309 Large White and 179 Landrace) and the size of all litters resulting from services which occurred between January 1967 and March 1970 were analysed. The mean gestation length was 113.96 days for the Large White and 113.74 days for the Landrace while the mean values for the litter size were 9.14 and 9.58 respectively. There was a significant negative correlation between these two traits in both breeds (P 0.01). A slight and non-significant seasonal effect (P 0.10) was shown with the highest and lowest gestation lengths being recorded in July (114.38 days) and in January and February (113.40 days). Breed effect and interaction between breed and season were also not significant.

scholarly journals Nursing students’ perceived stress and influences in clinical performance

2015 ◽  
Vol 4 (2) ◽  
pp. 44 ◽  
Author(s):  
Laila Akhu-Zaheya ◽  
Insaf Shaban ◽  
Wejdan Khater
Keyword(s):  
Nursing Students ◽  
Perceived Stress ◽  
Negative Correlation ◽  
Clinical Performance ◽  
Professional Knowledge ◽  
Significant Negative Correlation ◽  
Clinical Settings ◽  
Related Factors ◽  
Knowledge And Skills ◽  
The Mean

<p><strong>Background:</strong> It is known that stress related to clinical training among nursing students could contribute to many physical and mental problems. However, little empirical evidence about the influence of stress in nurse students’ clinical performance<strong></strong></p><p><strong>Objective:</strong> The objective of this study was to assess the association between perceived stresses, stress related factors, and students’ clinical performance.</p><p><strong>Method</strong>: Using the perceived stress scale, 539 Jordanian nursing students from 2 public universities in Jordan participated in the study.</p><p><strong>Results</strong>: The results showed that the mean of stress perceived by students was 45.9. Students’ assignment were perceived as the main source of stress (M= 10.7, SD= 4.5) followed by stress related to patients’ care (M= 10.5, SD= 5.5) and stress from teachers and nursing staff (M= 9.6, SD= 5.3). The lowest source of stress is from students’ lack of professional knowledge and skills (M= 3.96; SD= 2.8). The mean of students’ clinical performance is 73.4%. Students’ perceived stress has a significant negative correlation with students’ clinical performance (<em>r</em>= -.09; <em>p</em> &lt;.05). The results also showed significant negative correlation between stress related to lack of professional knowledge and skills, and stress related to patient care and students’ clinical performance.</p><p><strong>Conclusion</strong>: This study expanded on students’ stress in clinical settings, and warrants further research in assessing its impact on their performance. Teachers should be aware of and help students to overcome and cope with said stress related factors in the clinical settings effectively.</p>

scholarly journals Relationship between the Growth Hormone/Insulin-Like Growth Factor-I Axis, Insulin Sensitivity, and Adrenal Androgens in Normal Prepubertal and Pubertal Girls

2003 ◽  
Vol 88 (3) ◽  
pp. 1389-1393 ◽  
Author(s):  
Gabriela Guercio ◽  
Marco A. Rivarola ◽  
Eduardo Chaler ◽  
Mercedes Maceiras ◽  
Alicia Belgorosky
Keyword(s):  
Insulin Resistance ◽  
Insulin Sensitivity ◽  
Negative Correlation ◽  
Significant Positive Correlation ◽  
Significant Negative Correlation ◽  
The Other ◽  
Adrenal Androgen ◽  
Adrenal Androgens ◽  
Igf I ◽  
The Mean

The aim of this study was to analyze the possible implication of changes in the GH/IGF-I axis and in insulin sensitivity for the regulation of adrenal androgen secretion of normal prepubertal and adolescent girls. A total of 61 normal girls were evaluated in prepuberty [Group (Gr)1, n = 33; early (Gr1A, n = 16) and late (Gr1B, n = 17)]; puberty (Gr3, n = 28), early (Gr3A, n = 9) and late (Gr3B, n = 19); and during the transition between prepuberty and puberty (Gr2, n = 26). Insulin sensitivity was estimated by the fasting glucose/insulin ratio (G/I). In Gr1, G/I was significantly higher, and the mean serum IGF-I and serum dehydroepiandrosterone sulfate (DHEAS) were significantly lower than in Gr3 (P &lt; 0.0001). Mean G/I in Gr1A and Gr3A was significantly higher than in Gr1B (P &lt; 0.01) and Gr3B (P &lt; 0.02), respectively, and ratios in Gr1B were also significantly higher than in Gr3A (P &lt; 0.02). However, body mass index (BMI) in Gr1A, Gr1B, and Gr3A was not significantly different, although a significant increment was observed between late prepuberty (Gr1B) and late puberty (Gr3B; P &lt; 0.0001). On the other hand, serum IGF-I levels in Gr1A and Gr3A were significantly lower than those in Gr1B (P &lt; 0.01) and Gr3B (P &lt; 0.02), respectively. The mean serum DHEAS level in Gr1A and Gr3A was significantly lower than in Gr1B (P &lt; 0.01) and Gr3B (P &lt; 0.02), respectively, and the level in Gr1B was also significantly lower than in Gr3A (P &lt; 0.02). Correlation studies within Gr1, Gr2, and Gr3 were also performed. There was a significant positive correlation between serum DHEAS and age and a significant negative correlation between serum DHEAS and G/I in the three groups. However, a significant positive correlation between serum DHEAS and serum IGF-I was only found in Gr1. Furthermore, a significant negative correlation between BMI and the G/I was found in Gr2 and Gr3. Therefore, changes in insulin sensitivity might be involved in adrenal androgen synthesis both in prepuberty and in puberty, as well as during the transition from prepuberty to puberty. Changes in BMI suggest that adiposity might be a mediator of this effect, particularly during late puberty. On the other hand, the GH/IGF axis might be an important metabolic signal involved in the maturational changes of human adrenal androgens during prepuberty, at the time of adrenarche. Indeed, a significant negative correlation between G/I and serum IGF-I was found in Gr1, as well as in Gr2. In conclusion, the findings of this study indicate that the GH/IGF-I axis and insulin resistance might be involved in the mechanism of adrenarche during prepuberty in normal girls. Because these relationships had not been seen in boys, we proposed that prepubertal ovarian estrogens might be responsible for the sex difference. The relationship between insulin resistance and adrenal androgens persists during the transition from prepuberty to puberty, as well as during puberty.

scholarly journals AB0173 FACTORS ASSOCIATED WITH FATIGUE AND PERSISTENT FATIGUE IN RHEUMATOID ARTHRITIS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1113.1-1113
Author(s):  
A. Fazaa ◽  
H. Boussaa ◽  
K. Ouenniche ◽  
S. Miladi ◽  
M. Sellami ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Physical Activity ◽  
Negative Correlation ◽  
Disease Duration ◽  
Significant Negative Correlation ◽  
Professional Status ◽  
Factors Associated ◽  
Severe Fatigue ◽  
Persistent Fatigue ◽  
The Mean

Background:Fatigue is a common and debilitating symptom in patients with rheumatoid arthritis (RA). Fatigue in RA is poorly understood and appears to be multifactorial. Interactions between three factors were suggested: ‘personal’, ‘disease processes’, and ‘cognitive, behavioural’.Objectives:The aim of this study was to determine factors associated with fatigue and persistent fatigue in RA.Methods:We conducted a longitudinal study including patients with RA (ACR/EULAR 2010). Patients with other acute or chronic diseases that may induce fatigue (such as cancer, infection or depression) were excluded. Patients were evaluated at inclusion (T0) and 12 months later (T12). Demographic and disease-related data were collected: age, gender, professional status, physical activity, disease duration, Rheumatoid Factor (RF), Anti-citrullinated peptides antibodies (ACPA), pain Visual Analog Scale (VAS), Erythrocyte Sedimentation Rate (ESR), C Protein Reactive (CRP), Disease Activity Score 28 (DAS28), and Health Assessment Questionnaire (HAQ). Fatigue was assessed using the Functional Assessment of Chronic Illness Therapy – Fatigue (FACIT-F) which is a short 13-item questionnaire validated in RA. The score FACIT-F ranges between 0 and 52. Fatigue was considered mild if the FACIT-F score was ≥40, moderate if 20≤FACIT-F<40 and severe if 0≤FACIT-F<20. We defined ‘persistent fatigue’ as reported fatigue at T0 and T12. A p value inferior to 0.05 was considered significant.Results:We included 100 patients (84 women and 16 men) with a mean age of 49.5±10 years old [18-65]. Among them, 25% were professionally active and 15% had a regular physical activity. At inclusion, the mean disease duration was 87.3 months [1-360]. RF and ACPA were positive in 75% and 72.6% of cases respectively. The mean pain VAS was 49 cm [0-100]. The mean levels of ESR and CRP were 38.1 mm [10-120] and 10.8 mg/l [2-61] respectively. The mean DAS28 ESR was 3.68 [1.90-8.33] and the mean HAQ score was 0.90 [0-2.75].The mean FACIT-F score was 27.1 [0-51] at T0. Fifty-seven percent of patients had moderate fatigue and 26% had severe fatigue. At T12, the mean FACIT-F score was 33.4 [5-50]. Persistent severe fatigue was noted in 17% of patients.A significant negative correlation was noted between FACIT-F score at T0 and the following variables: age (r=-0,258, p=0.01), pain VAS (r=-0,605, p<0.001), ESR (r=-0,621, p<0.001), DAS28 ESR (r=-0.744, p<0.001), and HAQ (r=-0.634, p<0.001).A significant negative correlation was noted between FACIT-F score at T12 and the following variables: age (r=-0,229, p=0.022), disease duration (r=-0,296, p=0.003), pain VAS (r=-0,754, p<0.001), ESR (r=-0,405, p<0.001), CRP (r=-0,468, p<0.001), DAS28 ESR (r=-0.744, p<0.001), and HAQ (r=-0.678, p<0.001).Fatigue and persistent fatigue were not associated with gender, professional status, physical activity, and immunological profile.Multivariable analysis showed that DAS28 ESR (OR=-0.157, 95% CI [-4.614;-0.153], p=0.036) and HAQ (OR=-0.563, 95% CI [-6.916;-2.995], p<0.001) were independently associated with persistent fatigue.Conclusion:Fatigue is a frequent and complex symptom in RA. Higher disease activity and greater disability are suggested as predictors of persistent fatigue.Disclosure of Interests:None declared

scholarly journals Relation between plant average height of (Cremastra appendiculata) and elevations

2020 ◽  
Vol 5 (2) ◽  
pp. 104-110
Author(s):  
Bing-Hua Liao
Keyword(s):  
Medicinal Plant ◽  
Plant Species ◽  
Negative Correlation ◽  
Significant Positive Correlation ◽  
Significant Negative Correlation ◽  
Practical Significance ◽  
Average Height ◽  
Environmental Disturbance ◽  
Medicinal Species ◽  
Cremastra Appendiculata

(Cremastra appendiculata) of treating lumbago and arthritis not only is a vital medicinal material plant, but also is a widely distributed wide plant species. This plant species is widely distributed elevation from 500m to 3100m in forest landscapes and vegetation ecosystems in Mei County of China. However, understanding dynamics of average height of this species is difficult along elevation. This research explained that the links between average height of this species and elevation are the significant positive correlation from 500m to 1500m (P<0.01) as well as the links between average high of this species and elevation are the significant negative correlation from 1500m to 3100m(P<0.01). This study provides six ecosystem types and a series of areas ecological adaptation for finding medicinal species. Thus, this study has vital theoretical and practical significance for medicinal plant species protection for the better future of human health and ecosystem function (service, structure) at the spatial-temporal-environmental-disturbance scales (STEDS).

scholarly journals EFFECTS OF INBREEDING ON FLOWER YIELD IN GERBERA

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 586b-586
Author(s):  
Hongzhan Huang ◽  
James Harding ◽  
Thomas Byrne
Keyword(s):  
Finite Number ◽  
Population Size ◽  
Inbreeding Depression ◽  
Negative Correlation ◽  
Significant Negative Correlation ◽  
Gerbera Hybrida ◽  
Inbreeding Coefficients ◽  
Flower Yield ◽  
The Mean ◽  
Inbreeding Level

Inbreeding depression is found in most flower crops. Limited population size can cause inbreeding even in outcrossed populations. The Davis population of Gerbera hybrida has been selected for increasing flower yield for 15 generations. The mean yield per plant of the population has been increased from 14.2 to 28.0 flowers per winter six-month period. In each generation 23 to 80 selected parents have been crossed at random. Inbreeding coefficients were estimated from the pedigrees of each of the 6199 plants in the 16 generations. The inbreeding level in this population was found to increase in each generation and currently is 16.5%. Mean yield and inbreeding per family have a statistically significant negative correlation in generations 13 to 16. The results indicate that inbreeding is increasing in this randomly outcrossed population because of its finite number of parents, and that yield is reduced by 3.9 flowers per six-month due to inbreeding.

scholarly journals C-Telopeptide in Relation with Osteoporosis Risk Classification Using Osteoporosis Self Assessment Tools for Asian (OSTA) in Postmenopausal Women

2016 ◽  
Author(s):  
Willy Pangestu ◽  
Maria Loho ◽  
Freddy Wagey
Keyword(s):  
Postmenopausal Women ◽  
Negative Correlation ◽  
Significant Negative Correlation ◽  
Cross Sectional Study ◽  
Assessment Tools ◽  
Self Assessment ◽  
Cross Sectional ◽  
Significance Level ◽  
The Mean ◽  
Osteoporosis Risk

Objective: To determine the correlation between C‐telopeptide with osteoporosis risk by using Osteoporosis Self Assessment Tools for Asian (OSTA) in postmenopausal women. Method: An analytic cross‐sectional study of 31 postmenopausal women in Prof. Dr. RD Kandou Hospital, Manado. Samples were collected through consecutive sampling. Data was analyzed using Pearson test with significance level of p>0.05. Result: Our sample consisted of 31 postmenopausal women. Mean OSTA score is ‐1.02K2.54. Sixteen women (51.61%) were deemed to have low risk, 8 women (25.81%) deemed to have moderate risk and 7 women (22.58%) deemed high risk based on the OSTA score. The mean C‐telopeptide plasma level of our sample is 0.52K0.25 􀁏g/l. We found plasma C‐telopeptide level and OSTA score were normally distributed. Correlation analysis using Pearson test identified a significant negative correlation between plasma C‐telopeptide level and OSTA score (r=‐0.768; p=0.001). Conclusion: There is a significant negative correlation between plasma C‐telopeptide level with risk of osteoporosis based on OSTA score in postmenopausal women. Keywords: OSTA score, plasma C‐telopeptide, postmenopausal women

scholarly journals Relations between biomass of (Smilax scobinicaulis) Fresh Roots and Daily Solar Radiation

2021 ◽  
Vol 4 (1) ◽  
pp. 018-025
Author(s):  
Bing-Hua Liao
Keyword(s):  
Solar Radiation ◽  
Negative Correlation ◽  
Joint Pain ◽  
Significant Positive Correlation ◽  
Well Being ◽  
Significant Negative Correlation ◽  
Practical Significance ◽  
Total Biomass ◽  
Environmental Disturbance ◽  
Medicinal Species

(Smilax scobinicaulis) not only is a medicinal material plant by treating joint pain, but also it is a widely distributed wide species from 500m to 3100m in Mei County of China. However, explaining links between total biomass of fresh roots and daily solar radiation is difficult. Herein explains that it is an increasing of total biomass of fresh roots with increasing of daily solar radiation, a link between total biomass of fresh roots and daily solar radiation is a significant positive correlation from 20.578mol/m2•d to 24.158mol/m2•d along elevation from 500m to 1500m (P<0.01); it is a decreasing of this total biomass of fresh roots with increasing of daily solar radiation, it is a link between this total biomass of fresh roots and daily solar radiation is the significant negative correlation from 24.15mol/m2•d to 27.246mol/m2•d along elevation from 1500m to 3100m (P<0.01). Herein provides key areas ecological adaptation of daily solar radiation and six landscapes. So, this has key theoretical and practical significance by medicinal species protection for future of human well-being at daily solar radiation at spatial-temporal-environmental-disturbance scales (STEDS).

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