Micromorphology and topography of tarsal joint capsule's vascular elements in cats and dogs

2020 ◽  
Vol 49 (6) ◽  
pp. 830-835
Author(s):  
Yevheniya Nechiporuk ◽  
Vitaliy Novak ◽  
Antonina Melnychenko ◽  
Olga Bevz ◽  
Volodymyr Dudka
1930 ◽  
Vol 62 (4) ◽  
pp. 84-87 ◽  
Author(s):  
M. C. van Duzee

Male: Length 2.6-3 mm. Head, thorax, abdomen, legs and feet thickly white pruinose, but the ground color showing through; face moderately wide, wholly pollinose, this pollen yellow in the middle, reaching the orbits at the suture, sides of upper part narrowly, below the suture widely white pollinose, sonsetimes the yellow pollen covers most of upper part and extends onto the inner part of the palpi; palpi with snow white pollen, each nearly as large as upper part of face; antennae wholly yellow, small, arista whitish; orbital cilia white, rather long on the sides; occiput, front, thorax and abdomen reddish coppery, posterior margins of abdominal segments sometimes green ; bristles of thorax small, black; hairs of ahdomen very short, white; pleura and coxae black with ground color nearly concealed with white pollen, tips of coxae yellow; hypopygium small, with a long, straight, black appendage extending forward under the abdomen and small yellowish appendages inside of this long one; femora, tibiae and tarsi pale yellow, last two joints of all tarsi blackish; the minute hairs on all femora and tibiae white, the small bristles on tibiae black; fore tibiae with a row of long white hairs on upper surface, which are as long as diameter of tibiae and extend to fourth tarsal joint, becoming shorter towards the end; apical joint of middle tarsi very slightly widened; pulvilli not enlarged ; joints of fore tarsi as 20-8-6-5-7 ; of middle ones as 32-14-9-6-6; joints of posterior pair as 25-19-11-6-7.


2015 ◽  
Vol 43 (4) ◽  
pp. 459-464
Author(s):  
P. Brodzki

DNA synthesis starts earliest in the apical meristem of the shoot, and latest in the cotyledons. Mitoses appear simultaneously in the apical meristem and in the hypocotyl cortex. Synthesis continues in the mother cells of vascular elements and cotyledon parenchyma when mitosis ceases. In the cotyledons DNA synthesis is rather synchronous and leads to the elimination of 2 C nuclei.


2019 ◽  
pp. 1-2
Author(s):  
Archana Babu. P

Congenital Talipes Equino Varus is one of the most common congenital deformity which occurs in 1/1000 live birth worldwide. Regarding management of this clubfoot ,most orthopaedic surgeons agree that approach management of children with congenital talipes equino varus deformity of foot should begin with conservative measures i.e, manipulation and serial casting in position of correction. One or more surgical procedures are often required in patients who had incomplete correction , recurrent deformity , syndromic correction and after repeated manipulation and casts. Recurrence is a common problem following the club foot surgery one of the reason for recurrence can be redisplacement of tarsal bones .This study aims to compare prospectively the functional and cosmetic outcome of two groups of club foot-one in whom tarsal joint were fixed with k-wires after doing posteromedial soft tissue release and one in whom tarsal joint were not fixed after soft tissue release .To know the incidence of congenital talipes equino varus with respect to age and sex predilection over a period of two years which were admitted between October 2017 to October 2019, 28 idiopathic club foot in 20 children range from 4 months to 3 years were treated out of 20 cases 12 were males,8 were females.8 patients had bilateral deformity out of 12 unilateral deformities 8 were on right side and 4 were on the left side. Male and female ratio 1.5:1 and unilateral to bilateral 1.5 :1.In 12 feet turco's posteromedial soft tissue release and internal fixation of tarsal joints with k-wires was done in 16 feet only turco's posteromedial soft tissue release was done. The period of follow up ranges from 6 months to 2 years


2019 ◽  
Vol 12 (1) ◽  
pp. 188
Author(s):  
Rossana Cortelini da Rosa ◽  
Dione Dambrós Raddatz ◽  
Paulo Fernando dos Santos Machado ◽  
Mario Lima dos Santos ◽  
Alexandro Dias Martins Vasconcelos ◽  
...  

The composition of the wood and its elements are considered determinants in the wood properties, standing out the fibers, axial parenchyma, number of vessels and rays. In this context, we aimed to investigate and describe the wood anatomical structure of the Erythroxylum myrsinites Mart. and identify its potential uses in the area of wood technology. From the tree, were removed three wood samples for the confection of anatomical slides, witch 3 × 3 × 3 cm, oriented we plans transversal, longitudinal and tangential longitudinal. For the preparation of histological blades, the method of Burger and Richter was adopted; the anatomical description was based on IAWA Committee recommendations. The species presents vessels numerous, solitary, composing 19% of the volume of wood. Diffuse porosity of polygonal contour and thin walls. Mean vascular elements, axial parenchyma representing 3% of the volume of the wood, in a paratracheal vasicentric arrangement. The rays are numerous, occupying 23% of the volume of the wood, narrow and heterogeneous, consisting of procumbent, square and erect cells. The fibers are libriform, of length medium and thick walls, occupying 55% of the volume of the wood, have spiral thickening and septate fibers, absent tracheids, and gelatinous fibers abundant. The characteristics presented give high flexibility to the stem and branches, and the wood with low specific mass, permeable and resistant to mechanical loads has potential for use in energy generation.


1999 ◽  
Vol 120 (3) ◽  
pp. 295-299 ◽  
Author(s):  
G.R. Pearson ◽  
M.J. Day ◽  
D. Main ◽  
J. Pawade
Keyword(s):  
B Cell ◽  

1986 ◽  
Vol 109 (2) ◽  
pp. 279-285 ◽  
Author(s):  
J. P. Hinson ◽  
G. P. Vinson ◽  
B. J. Whitehouse ◽  
G. M. Price

ABSTRACT Using the in-situ, isolated, perfused rat adrenal system, the actions of adrenal stimulants on steroidogenesis and perfusion medium flow rates (under constant perfusion pump conditions) have been studied. In a series of 100 experiments, initial rates of corticosterone output and flow rates were found to be positively correlated, although there was no such relationship between initial rates of aldosterone output and flow rates. Furthermore, in stable perfusion conditions, bolus injections of ACTH increased both flow rate and steroid output in a dose-related manner. In individual experiments there was a clear correlation between corticosterone and flow, but the association between aldosterone secretion rate and flow was less evident. It is possible that this discrepancy arises because of temporal differences in the responses of these two steroids. Flow was also stimulated by dibutyryl cyclic AMP (dbcAMP), with correlations with steroid output similar to ACTH, but the specific zona glomerulosa stimulants angiotensin II amide and potassium ions had, if anything, inhibitory effects on flow, but only at high concentrations. The data suggest that ACTH and dbcAMP evoke specific responses in the adrenal vasculature, resulting in relatively decreased intraglandular vascular resistance. They furthermore suggest that the secretory functions of the inner adrenocortical zones are subject to the additional control of vascular elements in the intact gland. J. Endocr. (1986) 109, 279–285


2002 ◽  
Vol 92 (4) ◽  
pp. 424-438 ◽  
Author(s):  
Benoît Pharand ◽  
Odile Carisse ◽  
Nicole Benhamou

The potential of a pulp and paper mill residues compost for the control of crown and root rot of greenhouse-grown tomato caused by Fusarium oxysporum f. sp. radicis-lycopersici was ultrastructurally investigated. Peat moss amended with compost substantially reduced disease-associated symptoms. Addition of Pythium oligandrum to either peat moss alone or peat moss amended with compost resulted in a considerable reduction in disease incidence compared with controls grown in peat moss alone. Histological and cytological observations of root samples from Fusarium-inoculated plants revealed that the beneficial effect of compost in reducing disease symptoms is associated with increased plant resistance to fungal colonization. One of the most prominent facets of compost-mediated induced resistance concerned the formation of physical barriers at sites of attempted fungal penetration. These structures, likely laid down to prevent pathogen ingress toward the vascular elements, included callose-enriched wall appositions and osmiophilic deposits around the sites of potential pathogen ingress. Invading hyphae, coated by the osmiophilic material, showed marked cellular disorganization. The use of the wheat germ agglutinin-ovomucoid-gold complex provided evidence that the wall-bound chitin was altered in severely damaged hyphae. A substantial increase in the extent and magnitude of the cellular changes induced by compost was observed when P. oligandrum was supplied to the potting substrate. This finding corroborates the current concept that amendment of composts with specific antagonists may be a valuable option for amplifying their beneficial properties in terms of plant disease suppression.


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