scholarly journals External Morphology of Immatures of Mischocyttarus nomurae Richards (Hymenoptera, Vespidae) during the Post-embryonic Development

Sociobiology ◽  
2016 ◽  
Vol 63 (3) ◽  
pp. 998 ◽  
Author(s):  
Agda Alves Rocha ◽  
Edilberto Giannotti

The work on this paper aimed to perform the description of the immatures and determine the number of larval instars in the post-embryonic development of Mischocyttarus nomurae Richards, a social wasp which the only works performed were the description of the specie and of the male.  Twenty colonies were collected in the city of Rio de Contas, in the region of the Chapada Diamantina, Bahia, Brazil and there were dimensioned 145 eggs, 349 larvae, 12 pre-pupae and 59 pupae. The eggs presented an average length of 1.03 ± 0.12mm and diameter of 0.40 ± 0.03mm. The average rate of growth of the larvae that presented five instars was 1.49. The width of the cephalic capsule of the larvae was: 1st instar 0.32 ± 0.08, 2nd instar 0.54 ± 0.06, 3rd instar 0.77 ± 0.07, 4th  instar 1.05 ± 0.10 and 5th instar 1.55 ± 0.07. The average width of the larvae of 5th instar and pre-pupae were close, where larvae of the 1st instar differed from the egg, being smaller. The average measure of the pupae was 1.85 ± 0.08. The specie presents two abdominal lobes highly projected towards and the first thoracic spiracle is 3.1 times higher than the second one. This is the first work on the biology of the specie.

1992 ◽  
Vol 26 (3-4) ◽  
pp. 461-472 ◽  
Author(s):  
O. E. Albertson ◽  
P. Hendricks

A 1630 L/s activated sludge plant at Phoenix was limited to an average rate of 1050 L/s and operated, at 400-600 mg/L MLSS and 0.8-1.3 day solids retention time (SRT) due to bulking sludge and limited clarification capacity. Higher SRTs also produced uncontrolled Nocardia foaming and low dissolved oxygen due to partial nitrification. The City retained the services of a team of consultants to resolve these problems as well as to upgrade the plant to provide nitrification and total nitrogen removal. An anoxic selector design was implemented within the existing basin and the clarifiers were modified to improve inlet design and sludge transport. The modified advanced wastewater treatment (AWT) plant operating at 1450 L/s has averaged an effluent of 7.6 mg/L BOD5, 8.2 mg/L TSS, 1.3 mg/L NH4N, 4.1 mg/L NO3N and 2.9 mg/L TP. Oxygen transfer efficiency has increased about 80% in the nitrification-denitrification (NdeN) mode. The cost of modification/upgrading to AWT was approximately $730,000 and a 400 L/s increase in hydraulic capacity was realized. Upgrading costs were $5.63/m3 ($0.02/gal.)


2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Rodrigo Ribeiro Vieiralves ◽  
Paulo Henrique Pereira Conte ◽  
Eduardo Medina Felici ◽  
Nádia Cristina Pinheiro Rodrigues ◽  
Tomás Accioly de souza ◽  
...  

Objective. To analyze the penile and urethral meatus biometry and its correlation with meatoplasty during endoscopic resections. We also propose a new classification for urethral meatus morphology.Materials and Methods. We prospectively studied 105 patients who underwent prostate and bladder transurethral resections. We performed standardized measurement of penile and urethral meatus biometry followed by penile photo in the front position. The need to perform meatoplasty or dilatation during resectoscope introduction was registered. Data were analyzed comparing the correlation between two groups: without intervention (Group A) and with intervention (Group B).Results. We observed in Group A and Group B, respectively, the average length of urethral meatus of 1.07 cm versus 0.75 cm (p<0.001) and average width of urethral meatus of 0.59 cm versus 0.38 cm (p<0.001). Considering the morphology of the urethral meatus, we propose a new classification, in the following groups: (a) typical; (b) slit; (c) point-like; (d) horseshoe; and (e) megameatus. The point-like meatus was the one that most needed intervention, followed by the slit and the typical meatus (p<0.001).Conclusions. Point-like and slit-shaped urethral meatus, as well as reduced length and width of the urethral meatus, are the determining factors.


Author(s):  
N. Dahariya ◽  
S. Sathapathy ◽  
U.K. Mishra ◽  
R. Patra ◽  
S. Dehury ◽  
...  

Background: Hansli chicken is reared in Mayurbhanj and Keonjhar districts of Odisha. They play a vital role in the economic upliftment of poor, landless and marginalised people in the rural areas besides providing them with nutritious egg and meat for consumption.Methods: Hansli chicks and Vencobb broiler chicks were divided into three age groups viz. group I (up to 1 month), group II (1-3 months) and group III (3-6 months) with six birds in each age group. On 4th week, 12th week and 24th week, six birds from each breed were used for the study of histomorphometrical features of the thymus, spleen and bursa of Fabricius. Result: The average thickness of the capsule, cortex and medulla of thymus, average width of thymic lobule and average maximum diameter of Hassall’s corpuscles differed significantly (p≤0.05) between the birds at specific ages. Similarly, the average thickness of the splenic capsule, average width of white pulp, average external transverse and internal longitudinal diameters of trabecular artery, average external longitudinal, internal longitudinal, external transverse and internal transverse diameters of central artery, average longitudinal diameter of capillary, average longitudinal and transverse diameters of splenic nodule, average thickness of PALS and PELS differed significantly (p≤0.05) between the birds at specific ages. The average number of bursal follicles in larger and smaller plicae, average height and width of larger and smaller plicae, average length and width of bursal follicle, average height of columnar cell of pseudostratified FAE and IFE, average nuclear height of FAE and IFE columnar cells differed significantly (p≤0.05) between the birds at specific ages.


2016 ◽  
Vol 19 (2) ◽  
pp. 317-325 ◽  
Author(s):  
Bruna Maria Bueno Barbosa ◽  
Rosane Aparecida Monteiro ◽  
Lucas Françolin Sparano ◽  
Rodolfo Fabiano Niz Bareiro ◽  
Afonso Dinis Costa Passos ◽  
...  

ABSTRACT: Objective: It was to identify trends of traumatic and non-traumatic causes of lower limb amputations, as well as the role played by population aging, traffic violence increase, public health policy of diabetes control program and drivers anti-alcohol laws on these amputations. Method: Hospitalization data recorded in the discharge forms of 32 hospitals located in the region of Ribeirão Preto, Brazil, from 1985 to 2008 were analyzed. Result: A total of 3,274 lower-limb amputations were analyzed, of which 95.2% were related to non-traumatic causes, mainly infectious and ischemic complications of diabetes mellitus. Cancer (2.8%) and congenital (1.3%) causes were included in this group. Only 4.8% were related to traumatic causes. Traumatic amputation average rate was 1.5 amputations in 100,000 habitants with a slight tendency of increase in the last 5 years. Non-traumatic causes showed an average rate of 30.0 amputations for 100,000 habitants and remained relatively constant during the whole period. Non-traumatic were much more predominant in patients older than 60 years and traumatic amputations occurred more frequently in patients younger than 39 years. Conclusion: The overall rates of amputation and the rates of traumatic and non-traumatic amputations remained nearly constant during the study period. The impact of diabetes control policies and the introduction of traffic safety laws could not be identified on the amputation rates.


Author(s):  
Osei O. Antobre ◽  
Nat Owusu-Prempeh ◽  
Michael J. Twumasi-Ankrah

The study evaluated the fish community assemblage in the sections of the Subri river, the Ankobra river, and the “galamsey” pond within the Prestea community as impacted by alluvial mining activities. Gill nets of length 10 m and mesh size 1.27 cm were used to trap fish of average length 25.25 cm whilst cane baskets were used to trap fish of average width 10.40 cm using the catch and recapture method. All the 46 fish samples identified belong to 10 genera and 5 families. The Chichlidae was the dominant family, accounting for 60% of the total families observed. With an H’ index of 1.57 the Subri river had the most fish diversity in comparison with the Ankobra river and the “galamsey” pond, which had 1.21 and 0.71, respectively. Similarly, the Subri river had a more complex fish community structure than the Ankobra and “galamsey” pond. The dominant species, Oreochromis niloticus, has not yet been evaluated by the IUCN, but the least dominated Brienomyrus brachyistus could be regarded as “least concern”. Notwithstanding, these fish are essential for food by the local communities. There is a possibility that the alluvial mining might have influenced the complexities of fish species communities. Thus conservation efforts must be promoted to sustain fish communities and overall freshwater ecosystem health.


2015 ◽  
Vol 04 (04) ◽  
pp. 186-189
Author(s):  
N Muthukumaravel ◽  
K. Y Manjunath

Abstract Background and aims: The third trochanter is defined as the osseous tubercule in the superior part of the gluteal tuberosity. The occurrence of third trochanter might have been due to the consequence of the relative strengthening of gluteus maximus muscle in human beings. The present study was undertaken on the femora of northern Tamil Nadu region with the aim to determine the frequency of third trochanter of femur in this region and to compare it with occurrence in other series. Material and methods: The study was carried out on a collection of 153 dried adult femora of unknown age and sex available at the departments of Anatomy of Annapoorana Medical College and Vinayaka Mission's Homeopathy Medical College, Salem, Tamil Nadu, India. Results: Out of total 153 femora studied, the presence of third trochanter was noticed in 21 femora (13.72%). Out of these 15.71% were femora of the right side and 12.04% were of the left side. The average length and breadth of the third trochanters were 19.80±5.22 mm and 7.63±1.75 mm respectively Conclusion: The occurrence of the third trochanter was considerably higher among right femora than the femora of the left side. The average length of the third trochanters was found to be more on the right side and average width was more on the left side. This may be due to functional difference between the right and left gluteus maximii muscles.


2020 ◽  
pp. 002224372096940 ◽  
Author(s):  
Stephan Seiler ◽  
Anna Tuchman ◽  
Song Yao

The authors analyze the impact of a tax on sweetened beverages using a unique data set of prices, quantities sold, and nutritional information across several thousand taxed and untaxed beverages for a large set of stores in Philadelphia and its surrounding area. The tax is passed through at an average rate of 97%, leading to a 34% price increase. Demand in the taxed area decreases by 46% in response to the tax. Cross-shopping to stores outside of Philadelphia offsets more than half of the reduction in sales in the city and decreases the net reduction in sales of taxed beverages to only 22%. There is no significant substitution to bottled water and modest substitution to untaxed natural juices. The authors show that tax avoidance through cross-shopping severely constrains revenue generation and nutritional improvement, thus making geographic coverage an important policy decision.


1969 ◽  
Vol 73 (2) ◽  
pp. 109-114
Author(s):  
Megh R. Goyal ◽  
Rubén Guadalupe-Luna ◽  
Evangelina R. De Hernández ◽  
Carmela Chao de Báez

Sweet peppers (var. Cubanelle) graded for width, length and weight were evaluated after three fertigation treatments (T1 = 150, T2 = 300 and T3 = 500 Kg of N/ha), 500 Kg of N/ha side-dressed (T4), no fertilizer (T5), plastic mulching (P) and no mulching (NP). Nitrogen source was urea. The relationships of average width and average weight versus days after transplanting were sigmoidal. A linear relationship was found between average length versus days after transplanting. More than 50% of peppers were within size classes 1 to 4 ; fewer than 40% were in the size classes 5 to 9. During the growing cycle, mean numbers of peppers and weight per pepper in each size class were not statistically different (P = 0.05) among main treatments (T1, T2, T3, T4, T5). In size classes 1 to 9, there were significantly more peppers (P = 0.05) in P plots than in NP plots. Fruit parameter values decreased with successive picking and were significantly lower (P = 0.05) in the 5th picking and were higher in the P plots than in the NP plots (P = 0.05). Fertilization and fertigation resulted in higher values than non-fertilization.


2013 ◽  
Vol 275 (3) ◽  
pp. 295-312 ◽  
Author(s):  
Yuta Mashimo ◽  
Rolf G. Beutel ◽  
Romano Dallai ◽  
Chow-Yang Lee ◽  
Ryuichiro Machida

Crustaceana ◽  
2013 ◽  
Vol 86 (9) ◽  
pp. 1070-1083 ◽  
Author(s):  
F. Nazarhaghighi ◽  
N. Shabanipour ◽  
M. Zarghami ◽  
E. Etemadi-Deylami

The series of reproductive events in various species of Gammaridae can be described as precopula, copula, egg deposition and fertilization, hatching of the newborn, and the presence of young individuals. The stages of Pontogammarus maeoticus were explored in the laboratory. Amphipod samples were collected on the southwestern coast of the Caspian Sea (Jefrood Beach). The animals were transferred to the laboratory along with sediment from their habitat. The samples were maintained under controlled laboratory conditions at a temperature of 25 ± 1°C, a salinity of 9 ± 0.5‰ and in a 12 : 12 h light/dark regime for about six weeks. In this study, we examined the species’ reproductive sequence. The average time spent in the precopula stage was approx. 2.6 ± 0.91 days and embryonic development took about 8.5 ± 1.1 days. Fecundity was estimated as the number of fertilized eggs existing in the brood pouch of each female (average 14.12). The average length of females was recorded as 12.21 mm. The first precopula was observed about 40 days after hatching. The species has a relatively short reproductive cycle and the generations are able to reproduce after a short period (about 40 days). Hence, this species seems to be a good choice for potential use in aquaculture.


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