scholarly journals GEOTECHNOLOGY APPLIED TO THE MORPHOLOGICAL ANALYSIS OF ARACATIMIRIM RIVER ESTUARY (TORRÕES - CE)

Author(s):  
A. A. Silva ◽  
T. O. Falcão-Quintela ◽  
I. B. Magalhães ◽  
L. S. Pinheiro ◽  
L. S. Pinheiro ◽  
...  

Abstract. Estuaries are unstable coastal environments of transitional character between the continent and the ocean that plays an important role in fauna reproduction. In general, these types of coastal features have suffered several environmental impacts due to inadequate forms of use and occupation, which result in significant modifications in the morphology of river mouths. This work aims to apply geotechnologies to study the morphological changes at the mouth of Aracatimirim River, Ceará, Brazil, contributing with useful information on the monitoring and environmental management of tropical coastal estuaries. The methodology was divided into three stages: recognition of the study area; field activity and data processing and integration. The Aracatimirim River estuary underwent major changes between 1985 and 2013, where it was possible to identify five evolutionary phases into this period. Previously, built by bar, it evolved to an estuary of coastal plain, accompanied by the progression of Torrões beach and agglutination of "barriers spits" to the continent. It is the main navigable river of the area of Itarema municipality. After the development of this work, it was possible to conclude that the forms of use and occupation in the surroundings of the Aracaratimirim River estuary had a wide growth in the last years, which reflects clearly in the estuary morphology, currently classified as an estuary of coastal plain. The morphological changes within the estuary interfere on not only the environmental conditions, but also in the economy and social conditions of the local community.

2017 ◽  
Vol 15 (2) ◽  
pp. 186-191 ◽  
Author(s):  
Ana Luiza Peretti ◽  
Juliana Sobral Antunes ◽  
Keli Lovison ◽  
Regina Inês Kunz ◽  
Lidyane Regina Gomes Castor ◽  
...  

ABSTRACT Objective To evaluate the action of vanillin (Vanilla planifolia) on the morphology of tibialis anterior and soleus muscles after peripheral nerve injury. Methods Wistar rats were divided into four groups, with seven animals each: Control Group, Vanillin Group, Injury Group, and Injury + Vanillin Group. The Injury Group and the Injury + Vanillin Group animals were submitted to nerve injury by compression of the sciatic nerve; the Vanillin Group and Injury + Vanillin Group, were treated daily with oral doses of vanillin (150mg/kg) from the 3rd to the 21st day after induction of nerve injury. At the end of the experiment, the tibialis anterior and soleus muscles were dissected and processed for light microscopy and submitted to morphological analysis. Results The nerve compression promoted morphological changes, typical of denervation, and the treatment with vanillin was responsible for different responses in the studied muscles. For the tibialis anterior, there was an increase in the number of satellite cells, central nuclei and fiber atrophy, as well as fascicular disorganization. In the soleus, only increased vascularization was observed, with no exacerbation of the morphological alterations in the fibers. Conclusion The treatment with vanillin promoted increase in intramuscular vascularization for the muscles studied, with pro-inflammatory potential for tibialis anterior, but not for soleus muscle.


Author(s):  
Martin Maiden

The historical morphology of the verb ‘snow’ in Francoprovençal presents a conundrum, in that it is clearly analogically influenced by the verb ‘rain’, for obvious reasons of lexical semantic similarity, but the locus of that influence is not the ‘root’ (the ostensible bearer of lexical meaning) but desinential inflexion-class members, which are in principle independent of any lexical meaning. Similar morphological changes are also identified for other Gallo-Romance verbs. It seems, in effect, that speakers can identify exponents of the lexical meaning of word-forms in linear sequences larger than the apparent ‘morphemic’ composition of those word-forms, even when such a composition may seem prima facie transparent and obvious. It is argued that these facts are inherently incompatible with ‘constructivist’, morpheme-based, models of morphology, and strongly compatible with what have been called ‘abstractivist’ (‘word-and-paradigm’) approaches, which generally take entire word-forms as the primary units of morphological analysis.


1998 ◽  
Vol 11 (1) ◽  
pp. 39-42
Author(s):  
F.A. Lupo ◽  
A. Paladini

The term canalicular neuropathy is applied to nerve lesions arising on nerve segments passing through the osteofibrous canals or other narrow orifices and resulting in nerve compression and entrapment. We studied 31 patients referred to us for non-traumatic canalicular syndromes in the upper limbs. After clinical, electrophysiological and morphological analysis of each case, we emphasize the role of MR imaging in establishing prognosis and selecting treatment. Anatomosurgical specimens correlated well with MR features, whereas there was little correlation between electrophysiological severity and anatomical changes. In summary, canalicular neuropathy is a clinical syndrome. The aim of MR investigation is to document the morphological changes which will serve to institute appropriate treatment. When patients have clinical and electrophysiological evidence of neuropathy without MR demonstration of the nerve lesion, therapy will be conservative, thus saving the cost and risk of surgery. On the other hand, when clinical and electrophysiological findings are flanked by MR demonstration of the neuropathy, the disease is known to be advanced and surgery will be indicated to prevent neurotmesis.


RSC Advances ◽  
2017 ◽  
Vol 7 (72) ◽  
pp. 45344-45350 ◽  
Author(s):  
C. Rumancev ◽  
A. R. von Gundlach ◽  
S. Baier ◽  
A. Wittstock ◽  
J. Shi ◽  
...  

Soft X-ray SAXS and ASAXS reveal nanostructural properties and temperature induced morphological changes in catalyst materials. The stabilizing effect of cerium oxide deposits on the gold catalyst and the morphological properties of the cerium oxide were determined.


2014 ◽  
Vol 638-640 ◽  
pp. 1257-1260
Author(s):  
Rong Yao Ji ◽  
Qun Xu ◽  
Si Ping Mo

The surrounding area of the Dachan Bay in the Pearl River Estuary has one of the highest economic development rates of China. Rapid industrialization and urbanization has resulted in extensive changes in land use, including the tidal flat reclamation and harbor construction. For the analysis of the morphological changes of the Dachan Bay, multi-temporal Landsat images have been digitized by using the integrated RS and GIS technique, and the digital elevation modes in different years were set up in combination with topographical and nautical data. From the change analysis, it can be concluded that the sea area of the Dachan Bay decreases to 6.0 km2, by 87.6% between 1907a and 2011a due to the large-scale tidal flat reclamation, and the maximum downcutting depth of the seabed in the entrance area is over 10m mainly caused by extensive harbor construction. Based on the research of the morphological change in recent decades, it is suggested that the human activities have become one of the major factors affecting the morphological processes of the Dachan Bay.


2014 ◽  
Vol 36 (2) ◽  
pp. 87-101 ◽  
Author(s):  
Jinku Park ◽  
Boo-Keun Khim ◽  
Hee Jun Lee ◽  
Sang Ryong Lee

2018 ◽  
Vol 26 (2) ◽  
pp. 45-48
Author(s):  
I. N. Chairkin ◽  
N. V. Chairkina ◽  
O. N. Deryabina ◽  
V. Y. Medvezhonkov ◽  
O. V. Kalmin

The study was carried out on 120 mongrel white laboratory rats, to whom were transplanted the ascitiс Zaidel's hepatoma and which were divided into three equal groups. Of these, the first group of animals was a control group without treatment. In the second group, to animals doxorubicin was injected, in the third group, nanostructured doxorubicin was injected to the animals for 21 days. The aim of the study was to assess the degree of morphological changes in the tubules and glomeruli of the kidneys under the influence of nanostructured doxorubicin and doxorubicin in the condition of transplantable carcinogenesis. Given the nephrotoxicity of the chemotherapy drugs studied, the dynamics of structural changes in the tubules and glomeruli of the kidneys was studied. Conducted a comparative morphological evaluation of the changes occurring in the kidneys. The results of a morphological study of the structural components of the kidneys prove that doxorubicin and nanostructured doxorubicin have different effects on both the tubular apparatus and the glomeruli of the kidneys in the condition of transient carcinogenesis. The use of doxorubicin is accompanied by a relatively pronounced nephrotoxic effect, which is indicated by dystrophic and necrobiotic changes in the epithelium of convoluted tubules and the glomerular apparatus of the kidneys. The use of nanostructured doxorubicin is limited to moderately expressed dystrophic changes in the epithelium of the tubular apparatus of the kidneys, the glomerular apparatus remains intact at the same time. Thus, the use of the preparation of nanostructured doxorubicin for the treatment of the ascitic hepatoma of Zaidel in experimental animals has a less pronounced toxic and damaging effect on the renal parenchyma.


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