The Relationships between Skin Hardness, Pressure Perception and two-Point Discrimination in the Fingertip

1995 ◽  
Vol 20 (1) ◽  
pp. 44-48 ◽  
Author(s):  
E. S. DELLON ◽  
K. KELLER ◽  
V. MORATZ ◽  
A. L. DELLON
Keyword(s):  
Computer Assisted ◽  
Physical Interaction ◽  
Male And Female ◽  
Recent Introduction ◽  
Pressure Threshold ◽  
Significant Difference ◽  
Static Touch ◽  
The Mean ◽  
Little Finger

With the recent introduction of computer-assisted sensibility testing devices, it is possible to investigate the hypothesis that the neurological mechanisms responsible for perception of pressure and two-point discrimination are influenced by skin hardness. This study examined the relationships between the skin hardness of the human index and little finger pulp and the perception of pressure in 25 adults. Skin hardness was measured using the Derma-Durometer. Pressure perception was measured with the Pressure-Specified Sensory Device®* for both static and moving touch stimuli and for two-point discrimination. The mean hardness of the fingertip pulp was 12.5 ± 0.6 gm/mm2. There was no statistically significant difference in hardness between the dominant and non-dominant, right and left, index and little, or male and female fingertips. Skin hardness was independent of age for this population. The highest correlation, which was r = 0.46, was found between the cutaneous pressure threshold for one-point static touch and skin hardness. While this degree of correlation is significant at the P < 0.02 level, the r2 = 21%, demonstrating that this degree of correlation leaves 79% of the variability unexplained. These results suggest a physical interaction between mechanoreceptors and dermis that is only partially explained by the hardness of the skin.

Normal levels of vitamin A in tissues of the Syrian hamster (Mesocricetus auratus) determined colorimetrically

1988 ◽  
Vol 22 (2) ◽  
pp. 117-121 ◽  
Author(s):  
M. E. Robinson ◽  
A. M. Verrinder Gibbins ◽  
M. H. Hardy
Keyword(s):  
Vitamin A ◽  
Syrian Hamster ◽  
Cheek Pouch ◽  
Standard Diet ◽  
Male And Female ◽  
Mean Values ◽  
A Value ◽  
Significant Difference ◽  
Wet Weight ◽  
The Mean

Vitamin A levels in tissues of 20 normal adult hamsters on a standard diet were measured colorimetrically. No significant difference between male and female animals was found for any of the tissues sampled. The mean vitamin A value for blood plasma in 20 animals was 53·4 μg/dl. Mean values for liver, kidneys, flank skin and cheek pouch were 813, 1·29, 1·84 and 1·31 mg/g wet weight, respectively. The vitamin assay was less suitable for small organs such as trachea.

scholarly journals Flipping the “Learning Skills” Course during COVID-19: A Mixed-Modality Study

2021 ◽  
Vol 13 (3) ◽  
pp. 31-41
Author(s):  
Ashfaq Akram ◽  
Kamran Sattar ◽  
Tauseef Ahmad ◽  
Hamza M. Abdulghani ◽  
Jennesse John ◽  
...  
Keyword(s):  
Medical Students ◽  
Flipped Classroom ◽  
Teaching Method ◽  
Female Students ◽  
Learning Material ◽  
Learning Skills ◽  
Male And Female ◽  
Class Time ◽  
Significant Difference ◽  
The Mean

The purpose of this study was to compare the male and female medical students’ perceptions of the flipped classroom (FC) using the Zoom online platform during the COVID-19 pandemic. A mixedmodality study proceeded for first-year undergraduate medical students (n = 149). Three topics (learning how to learn, stress management and doctor-patient communication) were flipped using the Zoom platform. Following the flipping, relevant videos and PowerPoint slides were sent to the students. Home assignments were done through the online classroom. The students were then made to answer a questionnaire on their perceptions of FC consisting of 5-point Likert items. In addition, a focus group discussion (FGD) was carried out with voluntary participation (n = 13) for an in-depth discussion of flipped teaching. The quantitative data were analysed using the independent t-test, and Atlas.ti was used to analyse the qualitative data. For most of the Likert statements, there was no significant difference (p > 0.05) between the mean results obtained by the male and female students. For example, for the item “The learning material was available before class time”, both the male (mean [SD] = 1.857 [0.443]) and female (mean [SD] = 1.966 [0.365]) respondents confirmed the learning material’s availability before class time (p = 0.121). However, the mean result obtained by the male respondents for the variable “I understood the topics in lesser time compared to the traditional lecture method” was higher than the mean result obtained by the female participants by 0.236, which was statistically significant (95% CI [0.373, –0.100], p = 0.001). Modified FC teaching for the “learning skills” course is thus an effective teaching method. The male students took significantly lesser time understanding the three included topics compared to the female students.

scholarly journals Genetic homozygosity as a marker of smoking dependency

Genetika ◽  
2020 ◽  
Vol 52 (3) ◽  
pp. 1009-1019
Author(s):  
Slavko Brankovic ◽  
Dejan Nikolic ◽  
Dragoslav Marinkovic ◽  
Suzana Cvjeticanin
Keyword(s):  
Cross Sectional Study ◽  
Male Gender ◽  
Sectional Study ◽  
Cross Sectional ◽  
Male And Female ◽  
Mean Values ◽  
Individual Variations ◽  
Significant Difference ◽  
The Mean ◽  
The Individual

The aim of our study was to evaluate the morphogenetic variability as a marker of smoking dependency in adult smokers versus controls and to investigate the presence and the degree of morphogenetic variability difference between male and female smokers versus same gender controls. The cross-sectional study evaluated 241 smokers and 185 nonsmoker individuals as controls. We analyzed 17 homozygous recessive characteristics (HRC). There was a significant difference in the individual variations of 17 HRCs between the controls and smokers (??2=61.400, p<0.001; for females ??2=79.440, p<0.001; for males ??2=84.972, p<0.001). The mean values of HRCs significantly differed between smokers and controls (MV?SEM(Controls) -4.79?0.13, MV?SEM(Smokers) -5.70?0.12; p<0.001). For males, presence of 6/17 (35.29% genetic homozygosity) HRCs (OR=6.12) was to the certain degree predictor for smoking dependency. Higher degree of genetic homozygosity, changed variability and male gender, might be some among potential numerous factors that could have impact on smoking development and dependence.

scholarly journals Open quotient (EGG) measurements of young and elderly voices: results of a production and perception study

2005 ◽  
Vol 40 ◽  
pp. 213-225
Author(s):  
Ralf Winkler ◽  
Walter Sendlmeier
Keyword(s):  
The Elderly ◽  
Positive Relation ◽  
Male And Female ◽  
Elderly Males ◽  
Significant Difference ◽  
Vocal Effort ◽  
Quantitative Results ◽  
The Mean ◽  
Perceived Age ◽  
Age Independent

This paper presents the results of Open Quotient measurements in EGG signals of young (18 to 30 year old) and elderly (59 to 82 year old) male and female speakers. The paper further presents quantitative results on the relation between the OQ and the perception of a speaker's age. Higgins & Saxman (1991) found a decreased OQEGG with increasing age for females, whereas the OQEGG in sustained vowel material increased for males as the speakers age increased. In Linville (2002), however, the spectral amplitudes in the region of F0 (obtained by LTAS-measurements of read speech material) increased with increasing age independent of gender; this could be interpreted indirectly as an increasing OQ. We measured the OQEGG not only for sustained vowels, but also in vowels taken from isolated words. In order to analyse the relation between breathiness in terms of an increased OQ and the mean perceived age per stimulus a perception test was carried out in which listeners were asked to estimate speaker's age based on sustained /a/-vowel stimuli varying in vocal effort (soft - normal - loud) during production. The results indicated the following: (i) The decreased OQ for elderly females originally found by Higgins & Saxman is not apparent in our data for sustained /a/-vowels. For our female speakers no significant difference between the OQ of young and old speakers was found; for elderly males, however, we also found an increasing OQ with increasing age.(ii) In addition, a statistically significant increased OQEGG occurs for the group of the elderly males for the vowels from the word material. (iii) Our results show a strong positive relation between perceived age and OQ in male voices. Regarding (i) and (ii), at least the male speaker's voice becomes more breathy as age increases. Considering (iii), increased breathiness may contribute to the listener’s perception of increased age.  

scholarly journals Investigating the Influence of Shaft Balance Point on Clubhead Speed: A Simulation Study

Proceedings ◽  
2020 ◽  
Vol 49 (1) ◽  
pp. 156
Author(s):  
William McNally ◽  
John McPhee
Keyword(s):  
Total Mass ◽  
Center Of Mass ◽  
Golf Club ◽  
Physical Interaction ◽  
Balance Point ◽  
Mass Distributions ◽  
Biomechanical Models ◽  
Significant Difference ◽  
The Mean ◽  
Simulation Results

In this study, a dynamic golfer model was used to investigate the influence of the golf shaft’s balance point (i.e., center of mass) on the generation of clubhead speed. Three hypothetical shaft designs having different mass distributions, but the same total mass and stiffness, were proposed. The golfer model was then stochastically optimized 100 times using each shaft. A statistically significant difference was found between the mean clubhead speeds at impact (p < 0.001), where the clubhead speed increased as the balance point moved closer to the grip. When comparing the two shafts with the largest difference in balance point, a 1.6% increase in mean clubhead speed was observed for a change in balance point of 18.8 cm. The simulation results have implications for shaft design and demonstrate the usefulness of biomechanical models for capturing the complex physical interaction between the golfer and golf club.

Risk-Taking Patterns of Male and Female Entrepreneurs in Roodepoort

2014 ◽  
Vol 13 (4) ◽  
pp. 452-478 ◽  
Author(s):  
Ajay K. Garg ◽  
A. Duvenhage
Keyword(s):  
Risk Taking ◽  
Business Performance ◽  
Health And Safety ◽  
Primary Data ◽  
Female Entrepreneurs ◽  
Male And Female ◽  
Significant Difference ◽  
Males And Females ◽  
The Mean ◽  
Performance Perceptions

This study analyses the risk-taking propensity of male and female entrepreneurs. Primary data were collected from a sample of 400 randomly selected from among the small and medium scale entrepreneurs in Roodepoort and two structured questionnaires were used. The results showed the existence of differences among male and female entrepreneurs’ risk-taking perceptions. However, no significant differences in the mean scores between males and females in the financial and social domains of risk taking perception were found. The results further indicate that there is a significant difference in the means of the entrepreneurs with regard to their overall risk-taking perception in the ethical domain of risk-taking perception, health and safety risk-taking perception, recreational risk-taking perception as well as their business performance perceptions. The study also suggests that there is no correlation between business performance and risk-taking in entrepreneurs. The study highlights that there is no evidence to suggest that risk-taking in different genders plays a role as an indicator in business performance.

scholarly journals Nasal index among Students of People’s Dental College and Hospital

2019 ◽  
Vol 1 (1) ◽  
pp. 21-27
Author(s):  
Mangesh Bajracharya ◽  
Samjhana Sharma
Keyword(s):  
Ethnic Identity ◽  
Sexual Dimorphism ◽  
Female Students ◽  
Baseline Data ◽  
Craniofacial Surgery ◽  
Male And Female ◽  
Size And Shape ◽  
Gender Differentiation ◽  
Significant Difference ◽  
The Mean

Introduction: Nasal anthropometry is a study that deals with the measurements of the proportion, size, and shape of the nose. The nasal index is considered as one of the major landmarks for craniofacial surgery, gender differentiation, and ethnic identity. This study is aimed to provide baseline data of the nasal index of Nepalese people and to assess the gender variation which will be of clinical, surgical interest in rhinology and craniofacial prosthetic purpose. Methods: BDS students from 17 to 25 years with various ethnicity were included in the study. A total of 160 students with an equal number of male and female students was included. Nasal parameters were measured and the nasal index was calculated for each student. Result: The mean nasal index was 78.03±7.07 suggesting Mesorrhine type of nose. The nasal width and height show statistically significant differences whereas there was no significant difference found between the nasal indices of male and female students. Hill Janajati showed the highest nasal index followed by Newar, Brahmin and Chettri; and Others. Conclusion: The study concludes the type of nose has an effect on gender when compared between the sex but the nasal index calculated to have a little contribution to sexual dimorphism. Mesorrhine nose was found to be most frequent. Among the population, Hill Janajati showed the highest nasal index. We recommend further study to compare the nasal index of various ethnical groups of the Nepalese population. Keywords: Anthropometry, Mesorrhine, Nasal Index

scholarly journals Dietary practices in type 2 diabetes patients at Bhopal, Madhya Pradesh: a cross-sectional study

2019 ◽  
Vol 6 (8) ◽  
pp. 3423
Author(s):  
Rama Singodiya Lodha ◽  
Smriti Singh ◽  
Dinesh Kumar Pal ◽  
Manju Toppo ◽  
Shipra Verma ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Diabetes Patient ◽  
Consumption Pattern ◽  
Diabetic Patients ◽  
Dietary Practices ◽  
Cross Sectional ◽  
Male And Female ◽  
Significance Level ◽  
Significant Difference ◽  
The Mean

Background: Diabetes mellitus (DM) is a rapidly growing health problem in India. Diet and physical activity are important modifiable risk factors affecting the incidence, severity and management of DM. The aim of the study was to assess diet of diabetes mellitus patients. 87 adults from a cohort of diabetic patients attending the Medical Clinics at the Hamidia Hospital Bhopal were invited for the study.Methods: Information about their nutritional status & food consumption pattern was taken by 24-hour dietary recall and food frequency questionnaire. Data was analysed using Epi Info and MS Excel. Frequency counts and percentages were used to describe the demographic characteristics of the participants while the significance difference in between male and female participants. The significance level was set at P <0.05 and 0.01. Statistical analysis used:  MS Excel and Epi Info.Results: The study sample was 87 out of which 56 were females and 31 were males; mean age of DM patients was 48.21±12.98.The mean energy intake was 1386.52 kcal and 1125.79 kcal among male and female. The mean protein intake was 68.71 g and 50.50 among male and female diabetics. There was significant difference between male and female age. There were no significant difference in body mass index and waist hip ratio between male and female. 30 (34.5%) & 16 (18.4%) were overweight and obese respectively.Conclusions: Based on these findings, the dietary practices of diabetic patients are inadequate and require improvement. Education and counselling about diet of a diabetes patient is needed. 

scholarly journals Outdoor School Activities Strategy for Enhancing Student’s Academic Achievement and Retention in Science in Delta South Senatorial District

2020 ◽  
Vol 10 (1) ◽  
pp. 98
Author(s):  
Edarho Oghenevwede Oyovwi
Keyword(s):  
Academic Achievement ◽  
Secondary School ◽  
Science Achievement ◽  
Female Students ◽  
Science Students ◽  
Male And Female ◽  
Significant Difference ◽  
Post Test ◽  
The Mean ◽  
Science Activities

The study examined the effects of outdoor science activities on student’s academic achievement and retention in science in Delta South Senatorial District. The quasi-experimental design was used specifically, the non-equivalent pre-test, post-test control group design. Four research questions and hypotheses were raised and formulated to guide the study. The population consists of all senior secondary school two (SSII) science students in all the Government-owned public schools in the Senatorial District with an estimation of fifteen thousand, two hundred and seventy-five students (15,275). A sample of two hundred and fifty (250) SSII science student’s randomly selected from four (4) public mixed secondary schools in the Senatorial District was used for the study. The instrument used for data collection was the Science Achievement Test (SAT) which was validated by experts in the field of Science, Measurement and Evaluation. The reliability of the instrument was established using Kuder-Richardson formula 21 which yielded coefficient of internal consistency of 0.82. Data were collected by administering the Science Achievement Test (SAT) as a pre-test. Post-test and post-post-test (follow up test). The data obtained were analysed using mean, standard deviation, Analysis of Variance (ANOVA) and Analysis of Covariance (ANCOVA). The results showed that there was a significant difference in the mean achievement and retention scores between students taught using outdoor science activities and those taught without outdoor science activities. There was no significant difference in the mean achievement scores between male and female students taught science with outdoor science activities and there was a significant difference in the mean retention scores between male and female students taught science with outdoor science activities in favour of male students. Based on the findings, it was concluded that outdoor science activities may be an option in promoting students’ academic achievement and retention in science students. Based on this, it was recommended that science teachers should adopt outdoor science activities in teaching science at the secondary school levels and that Government should provide an essential outdoor learning environment in schools to facilitate outdoor science activities.

scholarly journals Neuroticism and Academic Achievement Motivation in Adolescent

2015 ◽  
Vol 2 (4) ◽  
Author(s):  
Balvant M. Chhansiya ◽  
Yogesh A. Jogsan
Keyword(s):  
Academic Achievement ◽  
Achievement Motivation ◽  
T Test ◽  
Research Tool ◽  
Female Adolescent ◽  
Female Adolescents ◽  
Male And Female ◽  
Significant Difference ◽  
The Mean ◽  
Academic Achievement Motivation

The main purpose of this research was to find out the mean difference in adolescents. The total 80 adolescents as a variation belonging to adolescents were taken. The research tool for neuroticism Mosley personality scale was measured by Isenk and tool for academic achievement motivation were used which made by T.R.Sharma. Here t-test was applied to check the significant of in neuroticism and academic achievement motivation between male and female adolescents. The study revealed that there was no significant difference between male and female adolescent in neuroticism. There was no significant difference between male and female adolescent in academic achievement motivation.

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