Trophic traits of Grammostola vachoni, a tarantula (Araneae : Theraphosidae) from Argentina

2018 ◽  
Vol 66 (3) ◽  
pp. 228 ◽  
Author(s):  
Leonela Schwerdt ◽  
Gabriel Pompozzi ◽  
Ana Elena de Villalobos ◽  
Fernando Pérez-Miles

This is the first study about trophic traits of Grammostola vachoni, a threatened theraphosid spider endemic to the mountain systems of central Argentina. Four prey types were used in experiments: crickets, cockroaches, beetle larvae and adult beetles. Grammostola vachoni was observed to eat at a rate of about once every 11 days, with the mean total number of prey consumed per spider during the experimental period being 2.7. Latency to the first attack was similar for crickets, cockroaches and beetle larvae, but was shorter for adult beetles. Feeding time was significantly longer for crickets and beetle larvae. Mass gain was significantly different among prey types. Feeding effectiveness and ingestion rate were significantly higher for crickets. A significant positive correlation for feeding effectiveness and ingestion rate with prey mass and the initial spider mass was also found.

2020 ◽  
Vol 7 (7) ◽  
pp. 570-574
Author(s):  
Esra Adıyeke ◽  
Levent Adıyeke

Objective: This study aimed to investigate the factors that affect the preference of the anesthesia method in patients who were indicated for general or regional anesthesia. Material and Methods: A descriptive questionnaire was used to evaluate the opinions of 123 patients who were planned to undergo elective surgery in the orthopedics and traumatology outpatient clinic between January 2018 and June 2019. Results: 73 women (%59) and 50 men (%41) participated in the study. The mean age was 58.62±11 years. General anesthesia was preferred in 58% of the patients. The most common reason for rejection was that the patients who preferred general anesthesia did not want to receive visual and auditory stimuli during the surgical procedure. There was a significant positive correlation between education level and regional anesthesia preference rate. There was a significant positive correlation between the regional anesthesia preference rate of patients receiving hand and foot surgery indications. Conclusion: The preference of the majority of patients was found to be general anesthesia method. Additionally, the type of surgery and education level of the patients was found to be effective in preference of the anesthesia method.


Author(s):  
R. Ratheesh ◽  
Bindu Mohandas ◽  
P. P. Venugopalan ◽  
A. K. Sarada ◽  
Suprej K. ◽  
...  

Background: Quality of life (QOL) is individuals' perceptions of their position in life. QOL of alcohol dependent patients is an area that has received relatively less attention compared to other alcohol related problems.Methods: A deaddiction centre based cross sectional study was done on 370 individuals using a predesigned questionnaire during the period of 2012-2013. The data was analyzed using SPSS version 17. Spearman’s rank correlation test was used to find association between the study variables.Results: The mean age of the study subjects was 38.08±8.46 years. The mean duration of drinking was 12.62±7.47 years. The overall score of the QOL and the perceived health in alcohol dependent patients was 3.19±0.89 and 3.01±0.98 respectively. The mean of the transformed scores of physical, psychological, social and environmental domains are 69.12±12.82, 57.84±12.81, 58.52±17.05, 68.62±10.23 respectively. Statistical analysis of age with physical, environmental and social domains showed a significant negative correlation; literacy status with QOL, perceived health, physical, psychological, social and environmental domains showed a significant positive correlation; socio economic status with QOL and psychological domain showed a significant positive correlation; duration of drinking with QOL, perceived health, physical and psychological domain showed a significant negative correlation.Conclusions: Harm from alcohol use is a major public health problem. Reducing the level of social and health harms from alcohol requires preparation and planning.


1955 ◽  
Vol 46 (1) ◽  
pp. 123-129 ◽  
Author(s):  
D. H. L. Rollinson ◽  
K. W. Harker ◽  
J. I. Taylor

In continuation of a series of studies on the habits of Zebu cattle, records for the quantities of water consumed every hour by ten cattle during twenty periods of 24 hr. observations have been analysed.A large variation in day-to-day consumption was evident, but water was taken on an average during 8 hr. of the day with only a small amount of water consumed during darkness. The mean consumption per animal per 24 hr. period was 9·04 kg. (1·9 gal.). The range was 5·1–12·7 kg. (1·1–2·8 gal.).The water consumption records were subdivided into those days on which water was drunk during a small number of hours and those days when water was drunk during many hours. Although the hourly consumption differed markedly the end result showed a similar intake.A significant negative relationship was found between water consumed and grazing counts, and for one group a significant positive correlation was found between water consumption and dry air temperature.


1946 ◽  
Vol 36 (4) ◽  
pp. 260-262 ◽  
Author(s):  
James Anderson

The mean sugar content of bull semen was 470±11·7 mg. %. There was no relationship between the sugar content and the volume of the ejaculate, the number of sperm per c.mm., the initial motility and the maintenance of high motility during storage.The mean percentage reduction in sugar after 24 hr. for undiluted semen stored at 10° C. was 23·85 ·1±76%. There was a significant positive correlation between the sugar reduction and initial motility, and a highly significant positive correlation between sugar reduction and the concentration of sperm. The negative correlation between reduction in sugar and the period for which good motility was retained on storage was not significant.


2016 ◽  
Author(s):  
Moreen Uwimbabazi ◽  
Richard W Wrangham ◽  
Zarin P Machanda ◽  
Nancy L Conklin-Brittain ◽  
Jessica M Rothman ◽  
...  

Different food items can provide calories at different rates, yet nutritional studies of primates are generally based on the proportion of time spent eating different foods. Accordingly, estimates of energy intake are potentially wrong. To assess the importance of this problem we observed 15 female chimpanzees from the Kanyawara chimpanzee community in Kibale National Park, Uganda for 15 months. Feeding rates were recorded and nutritional analyses assembled for 90 food types. Across all foods the mean estimated rate of energy ingestion was 8.8±7.6 Kcals/min. Energy ingestion rates varied among food types (F8,82,=2.24, p<0.05), being higher for ripe fruits (12.2±8.7Kcals/min) than for young leaves (7.8±7.9Kcals/min), piths (6.0±5.2Kcals/min) or seeds (2.8±1.9Kcals/min). Energy ingestion rates estimated assuming high %NDF fermentation (54.3%) were significantly higher than the rates at zero (0%) fermentation (t=6.14, p<0.01). At 54.3% NDF fermentation, estimated energy ingestion rate rose by 20.5% for ripe fruits (9.7 to 12.2 Kcals/min), and by 39.7% for young leaves (4.7 to 7.8Kcals/min). Chimpanzees spent a mean of 304±80 minutes feeding daily, indicating that daily energy intake averaged to 3029 ±1198Kcal. When chimpanzees spent >60% of feeding time on ripe fruits (N=79 days), the average energy intake (3367Kcal) was significantly higher than when they spent >60% of feeding time on herbaceous vegetation (2409Kcal, N=37 days) (F1,114=12.68, p<0.01). Our results highlight the value of using feeding rates to understand chimpanzee nutrition, and suggest that seasonal fluctuation in nutrient intake is more pronounced than indicated by variation in feeding time.


Author(s):  
Hetvi Bharatbhai Jethloja ◽  
Priyanka Birjubhai Unadkat ◽  
Radhika Kanaiyalal Raichura ◽  
Janvi Narendrasinh Rana ◽  
Nidhi Sudhir Ved

Introduction: The Coronavirus Disease-2019 (COVID-19) has caused a serious threat to people’s mental health causing psychosomatic disorders such as panic disorder, anxiety, and depression. Aim: To find out the correlation between the occurrence of psychosomatic disorders and age during the COVID-19 lockdown phase. Materials and Methods: This cross-sectional, observational study was conducted in Department of Physiotherapy at RK University, Rajkot, Gujarat, India. Males and females of age ≥21 years, with an ability to understand and fill Google form were recruited for the study. The subjects were divided into four groups according to age 21-34 years, 35-54 years, 55-64 years, and 65 years and older. There were 250 participants in each group. The subjects were asked to fill the COVID-19 Peritraumatic Distress Index (CPDI). Data were analysed by using software Statistical Package for the Social Science (SPSS) version 20. The normality of data was checked by the Shapiro Wilk test. Data followed parametric type so; Pearson correlation test was applied to find out the correlation between age and CPDI score. Results: The mean age of the population was 49.24±18.14 years. The mean CPDI scale scores were 27.572, 31.948, 31.364, and 35.328, respectively from groups 1 to 4. There was a significant positive correlation (p-value=0.031) in group 4, while no significance was found in group 1 (p-value=0.074), group 2 (p-value=0.067), and group 3 (p-value=0.062) Conclusion: There was a significant positive correlation between age and psychosomatic disorder occurrence in the geriatric age group (65 years and older) in the Rajkot city.


2018 ◽  
Vol 14 (25) ◽  
pp. 63
Author(s):  
Mohamed Hajjaji ◽  
Abd Errazzak Khadmaoui ◽  
Abd El-Majid Soulaymani ◽  
Younes Azzouzi

The purpose of this work is to contribute to the description of marital practices in Northern Morocco, to follow the evolution of these practices, and to determine the motives for marriages between relatives. Thus our results show a highly significant positive correlation between the age of the two spouses (r = 0.619, p <0.001), with the mean age of the mothers being 49.03 ± 6.56 years, while for the fathers it is 56,02 ± 6,16 years with a difference of 7 years between the two spouses in the current generation. For consanguineous marriages, we identified 51 relatives, namely a frequency of 25.4% for the generation of studied couples GCE, 13.3% for the generation of paternal grandparents GGPP, and 17.5% for the generation of maternal grandparents GGPM. The intergenerational comparison reveals a highly significant increase in the percentage of consanguinity, ranging from the generation of grandparents (15.4%) to that of the studied couples (25.4%), with a difference of 10% (p˂0.001). These results also show that there is a strong association between the prevalence of consanguineous marriages and the group of women under 19 years old (p = 0.002), whereas for husbands it is noted that There is no association between marital status and age at marriage. The coefficient of consanguinity estimated by isonymy is almost twice as large as the coefficient of inbreeding estimated by genealogy.


1957 ◽  
Vol 5 (1) ◽  
pp. 4-17 ◽  
Author(s):  
A. Kemp ◽  
M.L. T Hart

Statistical investigation showed that correlation existed between the incidence of grass tetany and the mean 24-hr, temperature, particulary in spring and autumn. There was also a significant positive correlation between the K/(Ca and Mg) ratio in the grass and the incidence of tetany. During the spring and autumn, when the average temperatures were below 14 degrees C., an increase in K uptake by the herbage being grazed was associated with a rise in temperature, and was followed, after a 5-day time-lag, by an increase in the number of cases of tetany, if the critical value of K/(Ca + Mg) (2.2) was exceeded. A fall in temperature was followed by a fall in the ratio value and in tetany incidence. High summer temperatures were associated with a lower value for the ratio and only a few cases of tetany occurred. The results favour the theory that the relationship between temperature and the incidence of tetany is correlated with the cationic composition of the herbage grazed. [See Abs. 1013.]-From authors'summary. (Abstract retrieved from CAB Abstracts by CABI’s permission)


1997 ◽  
Vol 78 (5) ◽  
pp. 737-750 ◽  
Author(s):  
Kazue Itoh ◽  
Terukazu Kawasaki ◽  
Motoomi Nakamura

In a double-blind, placebo-controlled study, thirty-three subjects were allocated to undergo either a 4-week treatment with oral Mg supplementation (Mg(OH)2; 411–548 mg Mg/d) or a placebo. The urinary excretion of Mg increased significantly in both the first 2 weeks and the following 2 weeks of Mg supplementation, while the urinary Na excretion also increased significantly over the experimental period. The systolic and diastolic blood pressure values decreased significantly in the Mg group, but not in the placebo group. The urinary aldosterone excretion and packed cell volume increased significantly during the last 2 weeks of the experimental period compared with the run-in period and first 2 weeks of supplementation. There was a statistically significant positive correlation between the values for urinary noradrenaline excretion and diastolic blood pressure at the end of the supplementation period (both expressed as a percentage of the run-in value). Statistically significant increases in lecithin-cholesterol acyltransferase (EC2.3.1.43; LCAT), HDL-cholesterol and apolipoprotein AI were also observed after Mg supplementation. A significant positive correlation was observed between the levels of LCAT and urinary Mg excretion for the experimental period (expressed as a percentage of the run-in value). The total cholesterol: HDL-cholesterol ratio decreased significantly during the last 2 weeks of Mg supplementation compared with the first 2 weeks and the run-in periods, but this did not occur in the placebo group. These results suggest that Mg supplementation may lower blood pressure through the suppression of the adrenergic activity and possible natriuresis, while also improving the serum lipids through the activation of LCAT in human subjects.


2021 ◽  
Vol 69 (1) ◽  
Author(s):  
May Abdellatif ◽  
Ismail Mohamed Elhawary ◽  
Marwa Mohamed Mahmoud ◽  
Eman R. Youness ◽  
Walaa Alsharany Abuelhamd

Abstract Background A few published data on maternal and cord levels of zinc and copper with conflicting results were reported. We aimed to measure zinc and copper levels in the maternal blood and cord blood of newborns and correlate their levels with the gestational age and anthropometric measurements. This cross-sectional study included 75 full-term and preterm neonates and their mothers. These neonates were divided into 2 groups according to their gestational age. Serum levels of copper and zinc were estimated for the mothers of the studied neonates as well as their cord samples. This was done using atomic absorption spectrophotometry. Results The mean cord serum zinc in full term was 0.88 ± 0.18 μg/ml whereas in preterms was 0.73 ± 0.13 μg/ml. The mean cord copper in full term was 1.37 ± 0.26 μg/ml, whereas in preterms was 0.75 ± 0.28 μg/ml. Comparison between cord zinc and copper levels and maternal levels were statistically significant (p < 0.001). A significant positive correlation was found between zinc levels in neonates and their mothers (r 0.644; p < 0.000) and a similar positive correlation was found between copper levels in neonates and their mothers (r 0.625; p 0.000). A highly significant positive correlation was found between cord zinc and copper and anthropometric measurements. Conclusion The present work draws our attention to the significant correlation between trace elements in pregnant mothers and fetal development. Also, prematurity adversely influences zinc and copper levels in neonates.


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