scholarly journals Memoirs: The Gregarines of Cucumaria: Lithocystis Minchinii Woodc. and Lithocystis Cucumariae n.sp

1929 ◽  
Vol s2-73 (290) ◽  
pp. 275-287
Author(s):  
HELEN PIXELL GOODRICH
Keyword(s):  
Connective Tissue ◽  
The Other ◽  
Coelomic Epithelium ◽  
Short Tail ◽  
Respiratory Trees

Of two neogamous gregarines infecting C. saxicola and hitherto considered to be one and the same species, one--L. cucumariae n.sp.--was restricted to the respiratory trees and had spores with long flattened tails. The other--L.minchinii Woodc.--was enclosed throughout most of its life in a cup-like outgrowth of the host's coelomic epithelium and connective tissue, and had spores with peculiar episporal processes including a short tail.

scholarly journals Emotions, Planning and Co-production: Distrust, Anger and Fear at Participatory Boundaries in Bengaluru

Urbanisation ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 140-157
Author(s):  
Jayaraj Sundaresan ◽  
Benjamin John
Keyword(s):  
Connective Tissue ◽  
Management Practice ◽  
The Other ◽  
Planning Theory ◽  
Master Plan ◽  
Emotional Experiences ◽  
Policy Studies ◽  
Emotional Geographies ◽  
The Subject ◽  
Critical Policy

Emotions relationally and performatively constitute the very boundaries that distinguish the subject from the other(s). The urban human in India is affectively constituted by many intense emotional experiences of everyday life. Adopting a participation view of planning and drawing from Sarah Ahmed (2014, The cultural politics of emotion. Edinburgh University Press), we examine ‘what emotions do’ in the planning and participatory atmospheres (Buser, 2014, Planning Theory, vol. 13, pp. 227–243) in Bangalore. Tracing emotional content embedded in participations and non-participations, we demonstrate how distrust, anger and fear co-produced the process and outcomes of the 2031 Master Plan of Bangalore. We join the few emerging scholars that call attention to the emotional geographies of planning, particularly to be able to transform the continuing colonial urban management practice in the postcolonial world to that of planning. Planning, we argue, has to involve participation, in which emotions, we demonstrate, are the connective tissue (Newman, 2012, Critical Policy Studies, vol. 6, pp. 465–479).

scholarly journals Memoirs: On the Nephridiostome of Lumbricus

1932 ◽  
Vol s2-75 (297) ◽  
pp. 165-179
Author(s):  
EDWIN S. GOODRICH
Keyword(s):  
Connective Tissue ◽  
Lumbricus Terrestris ◽  
Coelomic Epithelium ◽  
Lower Lip ◽  
Excretory Organ ◽  
Marginal Cells ◽  
Straightforward Interpretation

The structure of the nephridiostome of Lumbricus terrestris L. is described, including the anatomical relations of canal, gutter, central, and marginal cells and their cytological characters. The extent and relation of the lower lip to other parts are also described. An account of the development of the nephridium is given from the stage when the rudiment still bears a single large ‘funnel-cell’ bulging forwards through the septum into the coelom. The whole nephridiostome (excluding the covering of coelomic epithelium and the connective tissue) is shown to arise from the nephridial rudiment, wholely or partly from that part of the funnel-rudiment which is derived from the ‘funnel-cell’. Upper, lateral, and lower lips are all developed from the funnel rudiment in which the lumen becomes pierced. There is no evidence that the coelomic epithelium contributes any part of the true nephridiostome. The view sometimes put forward that the excretory organ of Lumbricus is a nephromixium is not founded on sound evidence, and is opposed to the simple straightforward interpretation of its morphology which follows most naturally from the facts and a comparison with lower forms.

Covered Stents for True Subclavian Aneurysms in Patients with Degenerative Connective Tissue Disorders

2003 ◽  
Vol 10 (3) ◽  
pp. 647-652 ◽  
Author(s):  
Karthikeshwar Kasirajan ◽  
Brian Matteson ◽  
John M. Marek ◽  
Mark Langsfeld
Keyword(s):  
Connective Tissue ◽  
Stent Graft ◽  
Subclavian Artery ◽  
Case Reports ◽  
The Other ◽  
Long Term Results ◽  
Covered Stents ◽  
Connective Tissue Disorders ◽  
Invasive Treatment ◽  
Cystic Medial Necrosis

Purpose: To report the endovascular repair of rare true aneurysms of the subclavian artery in patients with degenerative connective tissue disorders. Case Reports: Two patients, one with Marfan syndrome and the other with idiopathic cystic medial necrosis, presented with 3 subclavian artery aneurysms. A Wallgraft and 2 Viabahn covered stents were used to successfully exclude these aneurysms. After 3 months, the Wallgraft thrombosed, but the contralateral Viabahn remained patent at the most recent examination 13 months after treatment. The other patient with the unilateral aneurysm had a patent Viabahn stent-graft at 10 months. Conclusions: Patients with degenerative connective tissue disorders may benefit from less invasive treatment with stent-grafts. The more flexible Viabahn stent-graft may be better able to adapt to arterial tortuosity. However, the long-term results of this new technique have not yet been established.

scholarly journals A quantitative evaluation of different regions of skin in adult Iranian native sheep

2013 ◽  
Vol 58 (No. 5) ◽  
pp. 260-263
Author(s):  
B. Mobini
Keyword(s):  
Connective Tissue ◽  
The Other ◽  
Sebaceous Glands ◽  
Lattice Line ◽  
Arrector Pili Muscle ◽  
Significant Difference ◽  
Native Sheep ◽  
One Way Anova ◽  
Quantitative Evaluations ◽  
Apparently Healthy

The present investigation aimed to evaluate the histomorphometric features of the skin of the Iranian native sheep (Bakhtiari breed). A total of 24 apparently healthy Iranian Bakhtiari sheep, aged 1–2 years were analysed and categorised on the basis of sex (12 females and 12 males). Samples were taken as small pieces from different regions of the skin, fixed and stained with H&E. The quantitative evaluations of different regions of skin were carried out using lattice line graticule (5 × 5) and light microscopy. The Student t-test and one-way ANOVA were used to analyse the data and detect significant differences. Results showed that the volume densities of different histological structures varied between sexes and among the different regions. No significant difference was observed in volume densities of sebaceous glands, arrector pili muscles and blood vessels, but the other parameters studied differed significantly among the regions. Except for the arrector pili muscle and connective tissue, the volume densities of other tissue structures were significantly affected by sex.  

scholarly journals II - On the nervous system of the starfish Mathasterias glacialis (L.)

1937 ◽  
Vol 227 (542) ◽  
pp. 111-173 ◽  
Keyword(s):  
Nervous System ◽  
Vascular Function ◽  
Nervous Tissue ◽  
The Other ◽  
Coelomic Epithelium ◽  
Mesodermal Origin ◽  
Oral Surface ◽  
The Right ◽  
Nerve Cords

In the year 1815, Tiedemann observed on the oral surface of the disk of the starfish Astropecten aurantiacus (L) a circumoral band of tissue continuous, in the mid-line of each arm, with a radial band. To these bands he ascribed a vascular function. Johannes Müller (1850), however, indicated that the radial and circular bands were more properly to be regarded as nerve cords, an observation which Owsjannikow (1871), Greeff (1871, 1872, a , 1872, b ), Hoffmann (1872), and Teuscher (1876) subsequently confirmed. Lange (1876), while not accepting the findings of previous authors as to the nervous nature of the circumoral and radial cords, discovered two ridges of tissue above each of the “V’’-shaped radial cords, one lying to the right and the other to the left of the mid-line. These are constituted by thickenings of the coelomic epithelium which lines the radial perihaemal canals, and were considered by Lange to represent nervous tissue. This opinion has been substantiated by Ludwig (1878), Hamann (1883, 1885), and Cuénot (1891) among others; but these and all recent investigators agree that the radial and circumoral cords must also be regarded as constituting part of the asteroid nervous system. Cuénot (1891) therefore distinguishes between the part of the nervous system derived from the ectoderm, such as the circumoral and radial cords, and the part—presumably of mesodermal origin—situated in the coelomic epithelium.

scholarly journals Mucinous cystadenofiobroma of the ovary

2012 ◽  
Vol 65 (11-12) ◽  
pp. 527-529
Author(s):  
Tamara Boskovic ◽  
Matilda Djolai ◽  
Jelena Ilic ◽  
Mirjana Zivojinov ◽  
Mihaela Mocko-Kacanski ◽  
...  
Keyword(s):  
Case Report ◽  
Connective Tissue ◽  
Histological Examination ◽  
Malignant Tumors ◽  
Correct Diagnosis ◽  
Single Layer ◽  
Coelomic Epithelium ◽  
Rare Form ◽  
Cystic Formation ◽  
Stromal Component

Introduction. Cystadenofibromas are tumors of the ovary which originate from the surface coelomic epithelium. Benign mucinous cystadenofibroma is a very rare form of these tumors, which consists of dominant stromal component of the connective tissue and one or more cysts. Case report. The case of a 62-year-old female with tumor of right ovary is reported in this paper. Histologically, tumor of the ovary had multilocular cystic formation, lined by a single-layer of mucoproductive cylindrical epithelium - endocervical type. In one area of tumor, the stromal component was abundant and made from partially hyalinised dense connective tissue. Mucinous cystadenofibroma was diagnosed on the basis of histological examination. Since the mucinous type of cystadenofibroma or adenofibroma is rare, this case has been chosen to be presented. Conclusion. Mucinous cystadenofibromas are differentially- diagnostically very similar to different malignant tumors and it is extremely important to make correct diagnosis of these neoplasms.

THE METABOLISM OF MUCOPOLYSACCHARIDES: II. THE EFFECT OF ADRENALECTOMY ON ENZYMES INVOLVED IN GLUCURONIDE SYNTHESIS AND METABOLISM IN CONNECTIVE TISSUE

1965 ◽  
Vol 43 (9) ◽  
pp. 1417-1425 ◽  
Author(s):  
T. S. Foster
Keyword(s):  
Connective Tissue ◽  
Glucuronic Acid ◽  
Sesame Oil ◽  
The Other ◽  
Hexokinase Activity ◽  
Sham Injection ◽  
Glucuronosyl Transferase ◽  
Adrenalectomized Rats

The levels of activity of hexokinase, phosphoglucomutase, uridine diphosphoglucose pyrophosphorylase, and uridine diphosphoglucose dehydrogenase, which are involved in the synthesis of glucuronic acid, and the activities of glucuronosyl transferase and β-glucuronidase, which are involved in its metabolism, were studied in connective tissue from sham-operated and adrenalectomized rats. Adrenalectomy resulted in a significant decrease in phosphoglucomutase activity and in significant increases in the activities of hexokinase, uridine diphosphoglucose dehydrogenase, and β-glucuronidase. Adrenalectomy had no effect upon the activities of uridine diphosphoglucose pyrophosphorylase or glucuronosyl transferase.The added stress of either a sham injection or injection of sesame oil, both given daily and intraperitoneally, resulted in a significant increase in hexokinase activity and a decrease in glucuronosyl transferase and β-glucuronidase activities, in both sham-operated and adrenalectomized animals. The other enzymes were unaffected.

scholarly journals The radular apparatus of cephalopods

1999 ◽  
Vol 354 (1380) ◽  
pp. 161-182 ◽  
Author(s):  
J. B. Messenger ◽  
J. Z. Young
Keyword(s):  
Connective Tissue ◽  
The Other ◽  
Octopus Vulgaris ◽  
Hard Material ◽  
Nerve Fibres ◽  
Front End ◽  
Food Particles ◽  
Receptor Organ ◽  
First Time ◽  
Support Rod

This paper describes the ontogeny, breakdown and absorption of the radular teeth of cephalopods and, for the first time, considers the function of the ‘bolsters’ or radular support muscles. The radular ribbon, which bears many regularly arranged transverse rows of teeth one behind the other, lies in a radular canal that emerges from the radular sac. Here the radular teeth are formed by a set of elongate cells with microvilli, the odontoblasts. These are organized into two layers, the outer producing the radular membrane and the bases of the teeth, the inner producing the cusps. The odontoblasts also secrete the hyaline shield and the teeth on the lateral buccal palps, when these are present. At the front end of the radular ribbon the teeth become worn in feeding and are replaced from behind by new ones formed continuously in the radular sac, so that the whole ribbon moves forward during ontogeny. Removal of the old teeth is achieved by cells in the radular organs; these cells, which are formed from modified odontoblasts (‘odontoclasts’), dissolve the teeth and membranes and absorb them. There is a subradular organ in all cephalopods. In Octopus vulgaris , which bores into mollusc shells and crustacean carapaces, it is especially well–developed and there is also a supraradular organ. A characteristic feature of the cephalopod radular apparatus is the pair of large radular support muscles or ‘bolsters’. Their function seems never to have been investigated, but experiments reported here show that when they elongate, the radular teeth become erect at the bending plane and splayed, presumably enhancing their ability to rake food particles into the pharynx. The bolsters of Octopus function as muscular hydrostats: because their volume is fixed, contraction of their powerful transverse muscles causes them to elongate. In decapods and in nautiloids each bolster contains a ‘support rod’ of semi–fluid material, as well as massive transverse musculature. This rod may elongate to erect the radular teeth. At the extreme front end of the bolsters in Octopus there are many nerve fibres that may constitute a receptor organ signalling the movements of the radula against hard material. Such nerves are absent from decapods and from octopods that do not bore holes. The buccal mass of Nautilus is massive, with heavily calcified tips to the beaks and a wide radular ribbon, with 13 rather than nine elements in each row. Nevertheless all the usual coleoid features are present in the radular apparatus and the teeth are formed and broken down in the same way. However, Nautilus has a unique structure, the radular appendage. This comprises a papillate mass extending over the palate in the mid–line and forming paired lateral masses that are in part secretory. The organ is attached to the front of the radula by muscles and connective tissue. Its function is unknown.

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