scholarly journals Morphometry of adults and larval stages of Cicadatra persica (Cicadidae: Hemiptera) distributed in Erneh, Syria

2016 ◽  
Vol 48 (1) ◽  
pp. 1
Author(s):  
M.A. Derdar ◽  
H.M.R. Belal

This study was conducted in order to describe and measure the morphological characters of adults and larval stages of the cicada <em>Cicadatra persica</em> distributed in Erneh, Syria. Eggs, newly hatched nymphs, fully developed nymphs, exuviae and adults were described and measured. The mean lengths of eggs (1.9±0.1 mm) were the same as newly hatched nymphs (1.8±0.174 mm), whereas the mean length of the fully developed nymphs (3.1±0.185 cm) was longer than the adults. Several parts of adults’ body (males and females) were measured. The results show that the mean of females bodies (2.60±0.118 cm) were larger than males ones (2.45±0.192 cm), nevertheless, there were no significant differences between them.

2019 ◽  
Author(s):  
Ibrahim Arman

<p>This study aimed at investigating the Effectiveness of Mantle of the Expert in creative thinking Skills among the 7<sup>th</sup> Graders. The study conducted on a sample of 7<sup>th</sup> Graders at Kober Secondary Boys School and Upper Kober Elementary Girls School. The study sample consisted of (100) students split into two groups (experimental and control). The researcher adopting the Torrance test for creative thinking the verbal image "A" by examining the tests used in the Ristow study (1988), Edwards and Baldov (1987) study, and designing a teacher book for the (engineering and measurement) unit according to the integration between the strategies of the mantle of the expert and role playing.</p> <p>This study adopted quasi-experimental design. It included two groups (experimental and controlled) in two branches (males and females) for each group. The controlled group was taught by using the traditional method whereas the experimental group by the mantle of the expert. The data analyzed using (ANCOVA) test to measure the differences in the development of creative thinking between the control and experimental groups.</p> <p>The Conclusions showed that there are statistically significant differences in the mean scores of the creative thinking test due to the way, gender and interaction between them.</p> <p>Based on the Conclusions of the study, the researcher recommends the need to use the mantles of the expert in the teaching of mathematics.</p>


1991 ◽  
Vol 48 (6) ◽  
pp. 1015-1021 ◽  
Author(s):  
Jan Henning L'Abée-Lund

I compared adult size and sea age at sexual maturity among nine populations of anadromous brown trout, Salmo trutta, in two Norwegian rivers to determine the extent of inter- and intrariverine variations. Variation in the mean length of spawners and in the mean sea age at sexual maturity were mainly dependent on the variations found within rather than between rivers. Mean lengths and mean age at maturity of males increased significantly with increasing altitude of the spawning area and with migration distance in freshwater. In females, positive significant correlations were found with mean lengths and altitude of the spawning area and with mean sea age at maturity and both spawning site altitude and migration distance. Mean lengths and ages of males and females were not significantly correlated with the rate of water discharge in the streams during spawning. The size of gravel substrate for spawning was of minor importance in explaining interpopulation variation in mean female size. The increase noted in mean length and in mean sea age at maturity of both males and females is probably an adaptation to greater energy expenditure to reach the uppermost natal spawning areas.


1987 ◽  
Vol 65 (4) ◽  
pp. 1021-1027 ◽  
Author(s):  
Christian Lydersen ◽  
Ian Gjertz

Samples were taken from 284 ringed seals (Phoca hispida) in the Svalbard area during April–July 1981 and March–April 1982. The age of 283 seals was determined by reading annuli in the cementum of the canine teeth. The mean age of the males was 11.3 years, and of the females, 14.9 years. Females were found to be significantly older than males. The mean length of sexually mature ringed seals was 128.9 cm for both sexes. The mean weight of adult males and females was 53.5 and 61.4 kg, respectively. Females were found to be significantly heavier than males. The sex ratio was 47.8% males and 52.2% females. Studies of microscopic sections of testis and epididymis from ringed seal males showed that 63, 75, and 80% of 5-, 6-, and 7-year-old animals, respectively, were sexually mature. The weights of testis and epididymis, diameters of tubuli, and the size of testis all showed a marked increase in the 5-year age-class. Macroscopic sections of ovaries from ringed seal females showed that 20, 60, and 80% of 3-, 4-, and 5-year-old animals, respectively, were sexually mature. The size of the ovaries showed a marked increase in the 5-year age-class. The ovulation rate of ringed seals from Svalbard was calculated to be 0.91.


1997 ◽  
Vol 3 (4) ◽  
pp. 251-255 ◽  
Author(s):  
Steven W. Kim ◽  
Lawrence Rice ◽  
John J. McCarthy

Seventy-nine cases of autoimmune thrombocytopenia seen by the Baylor Hematology section of The Methodist Hospital between 1991 and 1996 were retrospectively reviewed to assess the effectiveness of danazol in the treatment of autoimmune thrombocytopenia. Among the 42 patients who received danazol, the mean initial platelet count prior to treatment was 24.3 ± 17.4 (SD) × 109/L with a mean duration of disease of 53 months. Most cases were idiopathic, but some patients had underlying secondary disorders (rheumatoid arthritis, systemic lupus erythematosus, HIV, and/or Evans' syndrome). Overall 57% of the patients treated with danazol had an excellent or a good response with three patients who had unmaintained remission for >11 months. Minimal side effects were noted. Fifty percent of the patients with associated secondary disorders achieved an excellent or good response. The hemolytic component of all three Evans' syndrome cases was well controlled with danazol. In two cases, danazol was effective where a variety of other treatment regimens were not. An excellent or a good response was found in 58%, 62%, and 53% in patients >65 years old, between 45 and 65 years old, and <45 years old, respectively. Response rates were similar in males and females, Seventy percent of the nonsplenectomized patients had an excellent or a good response compared to 33% in postsplenectomy patients. Overall in view of its favorable side-effect profile, it is rational early on to attempt to abrogate the need for splenectomy, it may salvage splenectomy failures, and there is a reasonable response rate in those refractory to multiple prior therapies. Key Words: Autoimmune thrombocytopenia—Idiopathic thrombocytopenic purpura—Danazol— Systemic lupus erythematosus—HIV—Evans' syndrome.


Zootaxa ◽  
2022 ◽  
Vol 5091 (4) ◽  
pp. 546-558
Author(s):  
ZHAOYANG CHEN ◽  
FENGXIANG LIU ◽  
DAIQIN LI ◽  
XIN XU

This paper reports four new species of the primitively segmented spider genus Songthela from Chongqing Municipality, China, based on morphological characters of both males and females: S. jinyun sp. nov., S. longbao sp. nov., S. serriformis sp. nov. and S. wangerbao sp. nov. We also provide the GenBank accession codes of mitochondrial DNA barcode gene, cytochrome c oxidase subunit I (COI), for the holotype of four new species for future identification.  


2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Daniela da Silva Castiglioni ◽  
Marcio Limberger ◽  
Vanessa da Silva Castro ◽  
Francieli Ubessi

Abstract The study of population and reproductive traits provides information about the ecological structure of natural populations. This study aimed to characterize dynamics and reproductive traits of Hyalella palmeirensis from a natural pond from southern Brazil. The amphipods were sampled monthly (August 2012 to July 2013) by a person with the aid of a hand net for 20 minutes. Ovigerous females and pre-copulatory pairs were individualized in the field. A total of 12,325 individuals were sampled, being 1,421 males, 6,983 females (including 215 ovigerous females) and 3,921 juveniles. Paired and unpaired males were significantly greater in size than females. There was a positive correlation between body size (CL) of paired males and females. Males and females showed bimodal distribution. Total sex ratio favored females, and these were more frequent in almost all months. Ovigerous females and precopulatory pairs were found throughout the year, but with high frequency in winter and autumn, respectively, characterizing a seasonal reproduction. Juveniles were sampled throughout the year, with greater intensity in the spring. The mean fecundity was 19.6 ± 4.34 eggs. No reduction in the number of eggs was observed during embryonic development. The results observed in H. palmeirensis demonstrate that this species has a population and reproductive dynamics very similar to other species of Hyalella already analyzed in southern Brazil. Moreover, it can be seen that although the H. palmeirensis occurs in an environment with anthropic influence (soy cultivation,) the population is managing to remain in the area, with reproduction and recruitment in most months of year.


2020 ◽  
Vol 0 ◽  
pp. 1-6
Author(s):  
Rajesh Kumar ◽  
Tribhuwan Kumar ◽  
Kamlesh Jha ◽  
Yogesh Kumar

Objectives: Seizure is the fourth most common neurological disorder in the world; it affects all age groups with equal possibility of occurrence in both males and females. Many antiepileptic drugs are available today, but its diagnosis is challenging. The present study attempted to see if seizure activities could be predicted by analyzing the pre-seizure electrical activities. The prediction may help in taking preventive measures appropriately beforehand in the individuals with seizure proneness. Material and Methods: We selected 11 generalized seizure patients and 19 control patients out of total 115 patients referred for electro-diagnostics for various reasons. EEG of the subjects recorded, segmented as per protocol, and analyzed using MATLAB and EEGLAB tools. Results: The mean energy level in alpha and beta band of the study subject was significantly lower (P = 0.04 and 0.004, respectively) as compared to the age matched control subjects. Theta and delta bands did not show any significant difference between the groups. The difference between the pre- and post-electrical seizure energy and entropy was statistically insignificant. Conclusion: The study shows that the energy level remains low in the seizure patients in the alpha and beta bands. This further goes down when electrophysiological seizure activities starts. The randomness or entropy does not alter significantly among the seizure subjects in comparison to non-seizure subjects.


2021 ◽  
Vol 54 (2) ◽  
pp. 180-185
Author(s):  
Elham Mohammadyari ◽  
Mohammad Reza Kaffashian ◽  
Iraj Ahmadi ◽  
Azra Kenarkoohi ◽  
Askar Soufinia ◽  
...  

Objectives: This study was conducted to evaluate the clinical features of 68 coronavirus 2019-infected cardiac cases on gender basis. Methodology: Clinical, laboratory and electrocardiographic data of 68 COVID-19 patients with pre-existing cardiovascular diseases, analyzed and compared by gender-wise. Results: Dry cough (78% of male, 80% females) and fever (62% of male, 75% females) were the most common symptoms. Out of these 97% of them needed O2 supplementation. O2 saturation in patients with O2 therapy was 85%; 31% of men and 11% of women experienced intubation. The most common laboratory abnormalities, were neutrophilia, leukocytosis, lymphopenia, thrombocytopenia, decreased hemoglobin level, increased creatinine and urea, in men and women. Troponin level was different between male and female. Pneumonia was found in 86-87% patients. Approximately, Males and female, respectively53.10 and 52.8%, shown sinus tachycardia (ST arrythmia). PVC arrythmia was found in 2.9% of total patients. BBB arrythmia was found in 31.20% of males vs. 11.10% of females. The mean systole/diastole blood pressures respectively were 130±4/79.7 ±2 in males and 134±4/81±3 in females. Heart axis changes was identified in 43.8% and 27.8% of males and females respectively. Conclusion: Severity of symptoms and outcomes of COVID-19 in cardiac patients showed some differences between men and women which could be associated with differences in immune responses, respiratory tract properties, renin angiotensin system, sex hormones and lifestyle.  However, more studies to categorize gender differences are required.


2004 ◽  
Vol 27 (2) ◽  
pp. 137-142 ◽  
Author(s):  
Hung-Huey Tsai

This cross-sectional study investigated mandibular developmental changes in untreated normal Taiwanese from the deciduous to permanent dentition. Differences in the mean values for ramus height and body length between males and females were statistically significant after eruption of the permanent second molars. SNB angles significantly increased and gonial and L1-MP angles significantly decreased from deciduous to permanent dentition in both sexes. The SN-MP angle in females significantly decreased and ramus inclination in males significantly increased from the early mixed to permanent dentition.


2017 ◽  
Vol 77 (4) ◽  
pp. 703-709 ◽  
Author(s):  
J. F. J. Grigolli ◽  
M. M. Kubota Grigolli ◽  
D. G. Ramalho ◽  
A. L. Martins ◽  
A. M. Vacari ◽  
...  

Abstract The purpose of this study was to investigate the development and reproduction of the zoophytophagous predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) fed kale, broccoli and cabbage affects its. Nymphs and adults of this predator were fed on larvae of Plutella xylostella (L.) (Lepidoptera: Plutellidae) as prey with kale, cabbage, or broccoli. In the nymph period, the duration and prey consumption were similar with all the Brassicacea cultivar. However, nymph viability was higher for predators with broccoli leaves. The mean weight of 5th-instar nymphs, newly emerged females and the sex ratio were similar among the Brassicacea cultivars, while newly emerged males were heavier with kale and broccoli leaves. The supply of broccoli leaves resulted in greater oviposition, higher number of eggs per egg mass and longer longevity of P. nigrispinus males and females. Furthermore, the consumption of P. xylostella larvae by adult predators was higher with these cultivars. The net reproductive rate (R0) and mean generation time (T) were highest for predators with prey and broccoli leaves. The reproductive parameters of P. nigrispinus were enhanced when fed on P. xylostella larvae with and broccoli leaves, which can be an alternative diet in laboratory rearing of this predator.


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