scholarly journals The relationship between age and arachnoid depressions in humans

COMPASS ◽  
2017 ◽  
Vol 2 (1) ◽  
pp. 10-23
Author(s):  
Rajitha Sivakumaran

The human skeletal collection housed in the Department of Anthropolog y at the University of Alberta was used to determine the relationship between age and the occurrence of arachnoid depressions on the endocranial aspect of the skull. There were significant differences between the total number of arachnoid depressions found on the vaults of juveniles, adolescents, and adults. When mean ages were compared with total number of arachnoid depressions on the vault, a significant relationship did not emerge. When age was grouped into nine-year intervals to counteract the effect of idiosyncratic variation, the mean number of depressions increased with age, as did the maximum number of arachnoid depressions. The frequency of older individuals without arachnoid depressions waslow. Older individuals were more likely to have larger and deeper arachnoid depressions. There were no sex-based differences in the expression of arachnoid depressions. There were no significant differences between archaeological, historic, and modern samples or between pathological and healthy individuals. Although this study verifies the association between arachnoid depressions and senescence, the presence of arachnoid depressions is highly variable andcannot be used reliably as an indicator of chronological age or even as a sign of senescence.

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Satoru Kanda ◽  
Takumi Hara ◽  
Ryosuke Fujino ◽  
Keiko Azuma ◽  
Hirotsugu Soga ◽  
...  

AbstractThis study aimed to investigate the relationship between autofluorescence (AF) signal measured with ultra-wide field imaging and visual functions in patients with cone-rod dystrophy (CORD). A retrospective chart review was performed for CORD patients. We performed the visual field test and fundus autofluorescence (FAF) measurement and visualized retinal structures with optical coherence tomography (OCT) on the same day. Using binarised FAF images, we identified a low FAF area ratio (LFAR: low FAF/30°). Relationships between age and logMAR visual acuity (VA), central retinal thickness (CRT), central choroidal thickness (CCT), mean deviation (MD) value, and LFAR were investigated. Thirty-seven eyes of 21 CORD patients (8 men and 13 women) were enrolled. The mean patient age was 49.8 years. LogMAR VA and MD were 0.52 ± 0.47 and − 17.91 ± 10.59 dB, respectively. There was a significant relationship between logMAR VA and MD (p = 0.001). LogMAR VA significantly correlated with CRT (p = 0.006) but not with other parameters. Conversely, univariate analysis suggested a significant relationship between MD and LFAR (p = 0.001). In the multivariate analysis, LFAR was significantly associated with MD (p = 0.002). In conclusion, it is useful to measure the low FAF area in patients with CORD. The AF measurement reflects the visual field deterioration but not VA in CORD.


Author(s):  
Kieran McCartney ◽  
Jacky Forsyth

Aim: The aim of this study was to investigate if tests used to assess core stability could be used to determine success in physiological tests applied to assess dynamic balance and agility for a young active population. Methods: Pearson's r correlation coefficient was used to assess the relationship between the core stability tests and the dynamic balance and agility tests. Evaluation of the tests was established using Cronbach's coefficient of variance as part of intra-rater reliability tests. An analysis of 18 active college aged students was conducted (males: n= 13, females: n= 5). The mean ± SD age for males was 19.2 years ± 3.22 years and for females was 19.4 years ± 1.14 years. Conclusion: The results indicate that there is no significant relationship between tests that assess core stability and tests conducted to assess dynamic balance in active young adults. With the exception of the abdominal flexion test, no significant relationship exists between the remaining core stability tests and agility T-Test. Core stability is not a determinant of balance and agility.


2018 ◽  
Vol 89 (10) ◽  
pp. A5.4-A6
Author(s):  
Shafei Rachelle ◽  
Foiani Martha ◽  
Heller Carolin ◽  
Heslegrave Amanda ◽  
Woollacott Ione ◽  
...  

IntroductionFrontotemporal dementia (FTD) is usually caused pathologically by either tau or TDP-43. Previous biofluid assays of TDP-43 have not so far proved to be sensitive or specific for identifying those cases with TDP-43 pathology.Material and methodsWe set out to investigate the novel TDP-43 Simoa assay (Quanterix) assay in both plasma and CSF in a cohort of patients recruited from the University College London FTD observational studies with known or likely TDP-43 pathology (17), non-TDP-43 pathology (13), and healthy controls (10).ResultsThe mean [standard deviation] plasma TDP-43 concentration was higher in those with likely TDP-43 pathology (155.1 [223.4] pg/ml) than those with non-TDP pathology (112.39 [252.9] pg/ml), and healthy controls (50.0 [23.1] pg/ml), but the differences between groups was non-significant, with substantial overlap in concentrations between all three groups. The mean CSF TDP-43 concentration was 2.9 [0.3] pg/ml in those with likely TDP-43 pathology, 2.8 [0.4] pg/ml in those with non-TDP pathology, and 3.1 [0.5] pg/ml in healthy controls. DiscussionThe assay tested in this study does not accurately distinguish between those with likely TDP-43 pathology and either disease controls or healthy individuals. There remains an urgent need to develop a better biofluid assay for pathological TDP-43.


1987 ◽  
Vol 67 (3) ◽  
pp. 653-661 ◽  
Author(s):  
B. AHUNU ◽  
M. MAKARECHIAN

Preweaning weight records of 2856 spring-born calves raised at the University of Alberta cattle ranch during a 15-yr period were used in this study. Calving occurred mainly in April and May every year. Calves from three breed groups: Hereford (HE), Beef Synthetic (SY) and Beef Crossbred (XB) were weighed at birth, and in late June, July and August and at weaning in mid-October. They were classified as early, mid-season and late-born according to their birth dates. Average daily gain (ADG) between two consecutive weighings and relative growth rate (RGR) at each interval were analyzed by the least squares method and the adjusted means were plotted against the mean ages of the calves classified at 2-wk intervals to determine the pattern of changes in ADG and RGR with the increase in age of the calf. The SY calves had the highest ADG and RGR followed by the XB and HE (P < 0.05). Bull calves exhibited significantly higher (P < 0.05) absolute growth rate than heifer calves but the sexes were not different in RGR. Preweaning ADG reached a peak when calves were between 110 and 120 d old and declined thereafter. The decline in RGR was linear during the preweaning period. The mean growth rates of the early and mid-season calves were significantly (P < 0.05) higher than that of the late-born calves, and early-born calves showed more consistent gain than the mid-season and late-born calves. A pronounced decline in gain was observed for mid-season and late-born calves in late summer when pasture condition deteriorated indicating that early weaning and supplementation of calves' diet at that stage might be beneficial in sustaining growth rate of the calves. Key words: Cattle (beef), preweaning growth, calf (beef)


1985 ◽  
Vol 30 (4) ◽  
pp. 288-292 ◽  
Author(s):  
Roger C. Bland ◽  
Sharon Brintnell

The use of ECT over an eleven year period in the University of Alberta Hospitals is reviewed. Five percent of patients received ECT, the mean number of treatments per course was 5.2, and the most frequent type of treatment was bilateral ECT. Discharge diagnoses showed that three-quarters of the patients had affective psychoses and one-fifth were schizophrenic. All patients had had a mandatory consultation before treatment and the most frequent reasons for choosing ECT were given as: failed antidepressant treatment, previous good response to ECT, failure to respond to other treatment, uncontrollable delusions or psychotic behavior, acute suicidal risk requiring a rapid response, and adverse reaction to medication. The mandatory consultation process has worked well and has helped to clarify the situations where ECT may be used with benefit. It is hoped that this may assist those who may be responsible for defining guidelines for the use of ECT.


2020 ◽  
Vol 7 (4) ◽  
pp. 14
Author(s):  
Samad Shams-Vahdati ◽  
Alireza Ala ◽  
Eliar Sadeghi-Hokmabad ◽  
Neda Parnianfard ◽  
Nasim Ahmadi Sepehri ◽  
...  

Background: Developing countries are challenging with stroke as the third cause of death in developed countries and the most popular neurologic disease which results in disability. This study was designed to assess the relationship between demographic factors and early outcome in adult patients with difference type of stroke. Methods and Materials: A retrospective register review was performed from March 2017 to March 2018. ED medical document (chart) were reviewed by a neurologist or physician to obtain the clinical diagnosis, patient characteristics. Their demographic data (such as age, gender), NIHSS score and MRS score were filled in questionnaire. the significant variables were verified in a multivariable model to achieve an attuned estimate of effect. Results: A total of 861 patients with stroke were included in the analysis; the male and female sex in the statistical population were 56% and 43%; the mean age of the patients was 14.32 ± 61.74. The mean NIHSS (16.08±10.51) & MRS (3.66) scores were evaluated, respectively 47% severe stroke (NICHSS>16). There was no significant relationship between age increase and NIHSS increase (P = 0.86). Conclusion: Aging has a significant relationship with increased stroke. Gender and age differences in risk of stroke outcomes are mostly described by variations in physical characteristics and stroke severity of the patients.


2020 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Forouzan Elyasi ◽  
Seyed Mohammad Hosseininejad ◽  
Parisa Islami Parkoohi ◽  
Mahsa Kamali ◽  
Marzieh Azizi ◽  
...  

Background: Occupational burnout is a psychological syndrome that occurs in response to chronic stress in the workplace. Nowadays, it is known as one of the most important consequences of occupational stress. Defense mechanisms may also affect occupational burnout. Objectives: Since burnout is an important factor influencing the productivity of nurses, this study was conducted to investigate the relationship between the defense mechanisms and occupational burnout among nurses in the educational hospitals of an urban area in Iran. Methods: This descriptive cross-sectional study was conducted on 318 nurses who had at least one-year of work experience in four educational hospitals in Sari city, Iran, in 2018. Sampling was performed using the proportional stratified sampling method. The data were collected by the Maslach Burnout Inventory (MBI) scale, psychological Defense Styles questionnaire (DSQ-40), and a demographic questionnaire. Data were analyzed using descriptive and inferential statistics via the SPSS software V.20. Results: A total of 318 nurses were studied, 13 (4.1%) of the nurses had a burnout. The mean score of the dimension of emotional exhaustion (EE) was 17.49, in the dimension of depersonalization (DP) it was 5.42, and in the dimension of personal achievement (PA) it was 31.58. They indicated a low level of occupational burnout, and the mean scores of FE, DP, and PA subscales indicated a low level of occupational burnout. The use of more mature defense mechanisms had a significant negative correlation with the increase of the EE score (rho = -0.210, P < 0.001), but no significant relationship was reported with other aspects of burnout. Increased use of immature defense mechanisms had a direct correlation with the increase in the score of DP (rho = 0.255 and P < 0.001), but had a significant inverse relationship with the PA score (rho = -0.238 and P < 0.001) and no significant relationship with EE (P = 0.627). No significant relationship was found between the use of neurotic defense mechanisms and burnout dimensions (PEE = 0.119, PDP = 0.174, and PPA = 0.127). Conclusions: Since there is a significant relationship between defense mechanisms and occupational burnout, using the components of defense mechanisms in job interviews can lead to choosing appropriate nurses to perform different tasks in different settings, in accordance with individual and psychological characteristics. Also, teaching problem-solving skills, stress management, and useful information can improve defense mechanisms, nurses’ job performance, and patient satisfaction.


Author(s):  
M Keerthika ◽  
S Punithavathi

In this competitive world, it is essential to grab the sportive nature of sports persons. For different personality type of the individual the motive to engage in sports also varies from person to person. The aim of the present study is to determine the relationship between personality and motivation among sports persons and to identify the gender difference of personality and motivation factors. The sample of this study was 120 sports persons out of which 60 were males and 60 were females belonging to the age range of 18 -30 years. The mean, standard deviation and Pearson’s correlation coefficient were used for analysing the data. Results indicate that there is no significant relationship between Personality and Motivation type of sports persons.


2020 ◽  
Vol 47 (1) ◽  
pp. 19-23
Author(s):  
V. O. Chimezie ◽  
A. A. Ademola ◽  
O. I. Alli ◽  
A. E. Jubril ◽  
B. O. Josiah

An experiment to determine the relationship between egg weight, hatch weight and subsequent body weight of the Japanese quail was conducted. A total of 607 eggs collected over 6 days from an existing flock at the Animal Pavilion of the University of Ilorin were used for the experiment. Eggs were individually numbered, weighed and grouped into small (S) medium (M) and large (L) sized eggs based on the mean and standard deviation of the eggs. Mean egg weight were correlated and regressed with mean hatch weight and subsequent weight. Average egg weights were 10.23± 0.84g, 8.49± 0.72g and 6.94± 0.93g for the large, medium and small group respectively. The result showed relationship between egg weight and hatch weight were positive and highly significant (P < 0.01) with values of 0.973, 0.977 and 0.967 for small, medium and large groups, respectively. Relationship between hatch weights and weekly body weights were also positive and significant (P<0.01) for the medium and large groups only but decreased with age. Linear regression equation showed a significant coefficient of determination for weekly body weight using the values for small, medium and large egg weight values. The results of the study showed that egg weight can be reliably used for estimating body weight in Japanese quail and may be used as criteria for early selection of Japanese quail for body weight.


2019 ◽  
Author(s):  
Leili Yekefallah ◽  
Farzaneh Talebi ◽  
Ali Razaghpoor ◽  
Mohammmad Hossein Mafi

Abstract Introduction and Objective Fear of hypoglycemia can result in anxiety, stress, anger, depression and severe avoidance behaviors that it affects the sleep quality of diabetic patients. Therefore, the present study was conducted with the aim of investigating the relationship between fear of hypoglycemia and sleep quality among type II diabetic patients. Methods The present cross-sectional study was conducted on 400 type II diabetic patients referred to endocrinology clinic of Velayat Hospital and Boali Hospital in Qazvin, in 2018. Data were collected using a checklist for demographic variables, the Fear of Hypoglycemia Survey (FHS-W), and the Pittsburgh sleep quality index (PSQI). Descriptive statistics and Spearman correlation test were performed for data analysis using SPSS v24. Results In this study, the mean age of diabetic patients was 55.75±10.31. The majority of the participants were female (n=299, 74.8%) and were treated with oral anti-diabetic drugs (n=174, 43.5%). The mean score of sleep quality in patients was 8.98±3.64 and the fear of hypoglycemia was 21.27±11.92. The results of this study showed that there was a significant relationship between the fear of hypoglycemia and the poor sleep quality among patients (p<0.001, r=0.305). Conclusion The fear of hypoglycemia has a direct and significant relationship with poor sleep quality in diabetic patients; so that this fear reduces the quality of sleep in diabetic patients. Therefore, in order to provide adequate sleep to prevent inappropriate sleep complications, great attention should be paid to the issue of fear of hypoglycemia, and consider some actions to reduce this fear.


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