Relation between Seizure Latency and Maze Activity in Rats

1963 ◽  
Vol 12 (3) ◽  
pp. 723-728
Author(s):  
Richard H. O'Connell

A high positive correlation was found between audiogenic seizure latency and subsequent activity in a complex maze for 22 rats. The relationship appeared to be independent of the type of seizure, and it disappeared as familiarity with the maze increased. The maze activity of rats who failed to display seizure could not be predicted by considering them to be Ss with very long latencies.

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Yingying Wang ◽  
Xuemei Ye ◽  
Qin Lan ◽  
Xiaofang Ke ◽  
Lufeng Hu ◽  
...  

Linezolid can cause serious haematological toxicity, such as thrombocytopenia and aneamia. Heme, composed of iron and porphyrin, is an important component of hemoglobin. In order to investigate the relationship between the concentration of linezolid and heme in the plasma of infected patients, a UPLC-MS/MS method that can determine the concentrations of linezolid and heme simultaneously was developed and validated. A total of 96 healthy subjects and 81 infected patients, who received blood routine blood tests, were included and determined by the UPLC-MS/MS method. The results showed that the concentration of linezolid was 5.08 ± 3.46   μ g / mL in infected patients who were treated with linezolid. The heme in healthy subjects was 7.05 ± 8.68   μ g / mL , and it was significantly decreased to 0.88 ± 0.79   μ g / mL in infected patients ( P < 0.01 ). Spearman correlation analysis showed that linezolid had a high negative correlation with platelet (PLT) ( R = − 0.309 ). Heme had a high positive correlation with hemoglobin (Hb) ( R = 0.249 ) in healthy subjects and infected patients. The ROC analysis showed that heme had diagnostic value to distinguish low Hb (110 g/L). In conclusion, there was a positive correlation between heme and Hb, and this correlation was also observed in infected patients. A high concentration of linezolid was inclined to decrease PLT. Monitoring of heme and linezolid helps in the early diagnose of low Hb and PLT.


2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Marvelous Sungirai ◽  
Lawrence Masaka ◽  
Tonderai Maxwell Benhura

A study was carried out to determine the relationship between linear body measurements and live weight in Landrace and Large White pigs reared under different management conditions in Zimbabwe. Data was collected for body length, heart girth, and live weight in 358 pigs reared under intensive commercial conditions. The stepwise multiple linear regression method was done to develop a model using a random selection of 202 records of pigs. The model showed that age, body length, and heart girth were useful predictors of live weight in these pigs with significantly high positive correlations observed. The model was internally validated using records of the remaining 156 pigs and there was a significantly high positive correlation between the actual and predicted weights. The model was then externally validated using 40 market age pigs reared under communal conditions and there was a significantly low positive correlation between the actual and predicted weights. The results of the study show that while linear measurements can be useful in predicting pig weights the appropriateness of the model is also influenced by the management of the pigs. Models can only be applicable to pigs reared under similar conditions of management.


2009 ◽  
Vol 108 (2) ◽  
pp. 362-366 ◽  
Author(s):  
David A Kipper ◽  
Eva Buras

In the present article, the construct validity of one aspect of the definition of spontaneity is examined. Two ways of measuring spontaneity are presented. One involves the use of the revised version of a Spontaneity Assessment Inventory in which respondents are asked to indicate the intensity of the feeling of spontaneity they experience during a typical day. The second was a specially worded version of the Spontaneity Assessment Inventory–Revised: respondents were asked to indicate the frequency with which they experienced spontaneity during a typical day. 81 students responded to the two versions, which were given 1 wk. apart. The order of administration of the two versions was counterbalanced across the participants. The very high positive correlation between versions ( r = .84) suggests that either measure may be used as an estimator of spontaneity.


2021 ◽  
pp. 92-99
Author(s):  
K. A. Agha ◽  
C. A. Nwankwo

Aims: The study determined the relationship between levels of stress and adjustment patterns of retired civil servants, the relationship between levels of stress and adjustment patterns of male retired civil servants, as well as the relationship between levels of stress and adjustment patterns of female retired civil servants in Anambra state, Nigeria.  Study Design:  The research design was a correlation survey. Place and Duration of Study: Anambra state secretariat office, March 2010 to February 2020. Methodology: The multistage sampling procedure was used to select a sample size of 513 retired civil servants from a population of 1500 retired civil servants in Anambra state (220 male and 252 female) (Source: Anambra state secretariat office, personal/accounts department, 2019). Levels of stress (LOS) and adjustment patterns questionnaires (APQ) were used to collect data which was administered through direct delivery approach. The validity of the questionnaires was carried out by three experts. The reliability coefficient for the levels of stress questionnaire (LSQ) was 0.78, while the reliability coefficient for adjustment pattern questionnaire was 0.85. Research questions 1, 2 and 3 were answered using Pearson Product Moment Correlation Coefficient (r). The null hypotheses were tested at 0.05 level of significance using t-test of correlation. Results: Findings from the study revealed among others that; the relationship between levels of stress and adjustment patterns of retired civil servants is high and positive (r=0.661/n=472), while the relationship between levels of stress and adjustment patterns based on gender of retired civil servants is positively high for male (r=0.703/n=220), and moderately positive for female retired civil servants (r=0.577/n=252). Based on the findings, it was recommended among others that male and female retired civil servants should be encouraged to engage in meaningful activities that will reduce their stress levels. Also, the federal government should look into disbursement of funds and the payment of retired civil servants, the prioritizing of retirees’ payment of pension and gratuities can promote this process. Through this, retired civil servants will meet up financial obligations of their families, and in turn reduce the level of stress they undergo. Conclusion: There is a high positive correlation between levels of stress and their adjustment patterns, it was also found that a high positive correlation between levels of stress and adjustment patterns of male and female retired civil servants in Anambra state. Furthermore, a statistically significant relationship was found between levels of stress and adjustment patterns of retired civil servants.


2019 ◽  
Vol 23 (3) ◽  
pp. 142-146
Author(s):  
M. Soyal ◽  
M. Kaya ◽  
N.M. Çelik

Purpose: In this study, the relationship between the joint range of motion, and the serve speed and hit rate of tennis players was examined. The voluntary participants of this study are tennis players in the university tennis team. Materials and Methods: Twelve male students aged 18-25 voluntarily participated in the study. Participants were individuals, who professionally played tennis with a license. Certain parameters of the participants such as the upper extremity joint range of motion, extension and flexion angles of the elbow joint, abduction angle of the shoulder joint, and flexion and extension angles of the wrist were measured through standard plastic 12 goniometers. Similarly, the hit values were examined via the Revised Dyer Wall Test and serve speed values were examined by using the Stalker solo 2 brand radar. Pearson correlation analysis was used to examine the relationship between the joint range of motion and the serve speed and hit rate of the participants. The values below p <0.05 were considered as significant. Results: In the study, it was determined that there was a moderate positive correlation between wall test and shoulder abduction (p <0.05, r =, 599); similarly, there was a high positive correlation between wall test and wrist extension (p <0.05, r = 671); there was a high positive correlation between wall test and wrist flexion (p <0.05, r = 638); there was a high positive correlation between abduction of the shoulder and wrist extension (p <0.05, r =, 603); there was a very high positive correlation between wrist extension and wrist flexion (p <0.001, r = 819), and it was determined that there was no significant relationship between the other parameters (p> 0.05). Conclusion: In conclusion, in this study, it was determined that the joint range of motion has a positive relationship with both serve speed and hits.


2009 ◽  
Vol 39 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Ricardo Antonio Polanczyk ◽  
José Cola Zanúncio ◽  
Sérgio Batista Alves

The soil and other substrates such as mushroom compounds are the main sources of new Bacillus thuringiensis (Bt) isolates for Integrated Pest Management programs. This study describes the relationship between chemical properties of the soil (pH, OM, P3+, K1+, Ca2+, Mg2+, H1++Al3+, B3+, Cu2+, Fe2+, Mn2+ and Zn2+) and the occurrence of Bt in Brazil. A total of 1,197 bacterial colonies were obtained, being 512 of them identified as Bt. The Bt index (iBt), which is the relation between Bt colonies and bacterial counts ranged from 0.18 to 0.86. The iBt may be expressed with the formula: iBt= -0.4 + 0.6Ca2+ + 0.07Cu2+ + 0.009Fe2+ - 0.53Mg2+ -0.12Mn2+ + 1.26Zn2+. A cluster of samples with fewer colonies and a high negative correlation (antagonism) between Mn2+ and Ca2+; Mg2+ and Ca2+; Mg2+ and Zn2+; Mn2+ and Zn2+ and a high positive correlation (synergism) between Mn2+ and Mg2+; Zn2+ and Ca2+ was observed. The relationship between these elements and their effect on the Bt presence are discussed.


Author(s):  
L. I. Akunne ◽  
A. N. Anyamene

Aims: The failure rate in English language subjects as consistently been recorded in major examinations in the country makes it a worrisome situation. This is such that the schools are gradually losing its reputation which could likely result in loss of confidence in the students. Hence, this study aims at determining the relationship among locus of control, self-esteem and secondary school students’ academic achievement in English language. Study Design: The study adopted the correlation design. Place and Duration of Study: 920 senior secondary school II students from Anambra State of Nigeria, between August 2019 and January 2021. Methodology: This study on locus of control and self-esteem as correlates of secondary school students academic achievement adopted the correlational research design, a correlational research design seeks to establish relationship between two or more variables as well as indicates the direction and magnitude of the relationship between the variables The sample for the study was 920 senior secondary schools students drawn using the multi-stage sampling technique. Locus of control scale developed by Asthon Trice, revalidated by Osuji and Self-Esteem scale developed by Dr Morris Rosenberg were used in data collection. Pearson product moment correlation coefficient (r) was used in answering the research questions while t-test for correlation analysis and multiple regression analysis were used in testing the null hypothesis. Results: There is a moderate positive correlation between locus of control and academic achievement of secondary school students in English language (r = .469, n = 920), there is a high positive correlation between self-esteem and academic achievement of secondary school students in English language (r = .602, n = 920). The hypotheses tested show that that the t-calculated value is greater than the t-critical value at 0.05 level of significance. Hence, the null hypothesis is rejected. This shows that the relationship between locus of control and academic achievement of secondary school students in English language is statistically significant (t-cal. = 24.03, t-crit. = 1.960), that the t-calculated value is greater than the t-critical value at 0.05 level of significance hence the null hypothesis is rejected. This shows that the relationship between self-esteem and academic achievement of secondary school students in English language is statistically significant (t-cal. = 34.11, t-crit. = 1.960). At 0.05 level of significance, locus of control and self-esteem added statistically to the prediction of secondary school students’ academic achievement in English language. Conclusion: There is a high positive correlation between self-esteem and academic achievement of secondary school students in English language. There is a significant relationship between self-esteem and academic achievement of secondary school students in English language. Furthermore, there is a high positive correlation between self-esteem and academic achievement of secondary school students in English language. The relationship between self-esteem and academic achievement of secondary school students in English language is statistically significant. Locus of control, and self-esteem added statistically to the prediction of secondary school students’ academic achievement in English language. This implies that there is need for schools to initiate and implement procedures in order to help improve the quality and consistency in the outcome of academic achievement of students in English language which is a core subject at the secondary education level.


2021 ◽  
Vol 27 (5) ◽  
pp. 1229-1237
Author(s):  
Youn-Ji Lee ◽  
Seung-Hee Seo

Particulate matter has interest of the entire nation is increasing as its severity and risk are rising every day. particulate matter further threaten human health and cause various diseases unless environmental problems are improved, raising the need for continuous research. Therefore, the purpose of this study is to strengthen the awareness of the harmfulness of particulate matter among general public, and to suggest a way to practice proper skin care by investigating the harmfulness of particulate matter perceived by modern people and analyzing skin health management behavior. As for the research method, online Google survey form was used targeting male and female in their 20s to 50s residing in Korea, and a total of 502 questionnaires were statistically processed and used for the final analysis. The results of this study are summarized as follows. examination on the relationship between the awareness of the harmfulness of particulate matter and skin health management behavior showed that there is a high positive correlation between them, and there is a positive correlation between skin health management behavior and the use of cosmetics, nutrition and exercise management, and professional skin care in the order. the examination showed that modern people’s awareness of the harmfulness of particulate matter has a significant effect on skin health management behavior. It implies that the higher the awareness of the harmfulness of particulate matter, the higher the skin health management behavior. Based on the above results, it is considered that accurate information on particulate matter and appropriate skin care methods are needed. Based on this, it is expected to greatly contribute to the promotion of public health and activation of the skin care industry in the future.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Rongxin Wang ◽  
Jing Wang ◽  
Shuiqing Hu

Abstract Background The etiology of reflux esophagitis (RE) is multi-factorial. This study analyzed the relationship of depression, anxiety, lifestyle and eating habits with RE and its severity and further explored the impact of anxiety and depression on patients’ symptoms and quality of life. Methods From September 2016 to February 2018, a total of 689 subjects at Xuanwu Hospital Capital Medical University participated in this survey. They were divided into the RE group (patients diagnosed with RE on gastroscopy, n = 361) and the control group (healthy individuals without heartburn, regurgitation and other gastrointestinal symptoms, n = 328). The survey included general demographic information, lifestyle habits, eating habits, comorbidities, current medications, the gastroesophageal reflux disease (GERD) questionnaire (GerdQ), the Patient Health Questionnaire-9 depression scale and the General Anxiety Disorder-7 anxiety scale. Results The mean age and sex ratio of the two groups were similar. Multivariate logistic regression analysis identified the following factors as related to the onset of RE (p < 0.05): low education level; drinking strong tea; preferences for sweets, noodles and acidic foods; sleeping on a low pillow; overeating; a short interval between dinner and sleep; anxiety; depression; constipation; history of hypertension; and use of oral calcium channel blockers. Ordinal logistic regression analysis revealed a positive correlation between sleeping on a low pillow and RE severity (p = 0.025). Depression had a positive correlation with the severity of symptoms (rs = 0.375, p < 0.001) and patients’ quality of life (rs = 0.306, p < 0.001), whereas anxiety showed no such association. Conclusions Many lifestyle factors and eating habits were correlated with the onset of RE. Notably, sleeping on a low pillow was positively correlated with RE severity, and depression was positively related to the severity of symptoms and patients’ quality of life.


2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Takayuki Kaneko ◽  
Atsushi Yasuda ◽  
Toshitsugu Fujii

AbstractThe effusion rate of lava is one of the most important eruption parameters, as it is closely related to the migration process of magma underground and on the surface, such as changes in lava flow direction or formation of new effusing vents. Establishment of a continuous and rapid estimation method has been an issue in volcano research as well as disaster prevention planning. For effusive eruptions of low-viscosity lava, we examined the relationship between the nighttime spectral radiance in the 1.6-µm band of the Himawari-8 satellite (R1.6Mx: the pixel value showing the maximum radiance in the heat source area) and the effusion rate using data from the 2017 Nishinoshima activity. Our analysis confirmed that there was a high positive correlation between these two parameters. Based on the linear-regression equation obtained here (Y = 0.47X, where Y is an effusion rate of 106 m3 day−1 and X is an R1.6Mx of 106 W m−2 sr−1 m−1), we can estimate the lava-effusion rate from the observation data of Himawari-8 via a simple calculation. Data from the 2015 Raung activity—an effusive eruption of low-viscosity lava—were arranged along the extension of this regression line, which suggests that the relationship is applicable up to a level of ~ 2 × 106 m3 day−1. We applied this method to the December 2019 Nishinoshima activity and obtained an effusion rate of 0.50 × 106 m3 day−1 for the initial stage. We also calculated the effusion rate for the same period based on a topographic method, and verified that the obtained value, 0.48 × 106 m3 day−1, agreed with the estimation using the Himawari-8 data. Further, for Nishinoshima, we simulated the extent of hazard areas from the initial lava flow and compared cases using the effusion rate obtained here and the value corresponding to the average effusion rate for the 2013–2015 eruptions. The former distribution was close to the actual distribution, while the latter was much smaller. By combining this effusion-rate estimation method with real-time observations by Himawari-8 and lava-flow simulation software, we can build a rapid and precise prediction system for volcano hazard areas.


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