Contribution of lineament pattern analysis from Landsat TM data to a geomophological-structural study of the Alpine-Dinaric domain

1997 ◽  
Author(s):  
Monica Pepe ◽  
Roberto Colombo ◽  
Eugenio Zilioli
Author(s):  
ABRAÃO LEVI DOS SANTOS MASCARENHAS ◽  
MARIA RITA VIDAL ◽  
LEONARDO BRASIL FELIPE

Durante a Era Neoproterozóica, eventos tectônicos de zona de cinturão orogênico (colagem continental), na região geologicamente conhecida como Faixa Araguaia, foram essenciais para a arquitetura das formas de relevo atuais na região da Serra das Andorinhas, SE do Estado do Pará. As atuais formas de relevo mostram a complexidade desses eventos colisionais. As geotecnologias possibilitam a identificação de deformações estruturais através dos SIGs, técnicas de geoprocessamento em imagens AW3D30 foram utilizadas a fim de identificar o padrão de lineamentos de relevo, para auxílio na definição e classificação das unidades geomorfológicas para a região da Serra das Andorinhas. Como resultados foi possível identificar lineamentos rúpteis de orientação preferencial NE, EW e NW, nos quais possibilitaram definir quatros unidades geomorfológicas em consonância com as feições lineares.


Author(s):  
S.F. Stinson ◽  
J.C. Lilga ◽  
M.B. Sporn

Increased nuclear size, resulting in an increase in the relative proportion of nuclear to cytoplasmic sizes, is an important morphologic criterion for the evaluation of neoplastic and pre-neoplastic cells. This paper describes investigations into the suitability of automated image analysis for quantitating changes in nuclear and cytoplasmic cross-sectional areas in exfoliated cells from tracheas treated with carcinogen.Neoplastic and pre-neoplastic lesions were induced in the tracheas of Syrian hamsters with the carcinogen N-methyl-N-nitrosourea. Cytology samples were collected intra-tracheally with a specially designed catheter (1) and stained by a modified Papanicolaou technique. Three cytology specimens were selected from animals with normal tracheas, 3 from animals with dysplastic changes, and 3 from animals with epidermoid carcinoma. One hundred randomly selected cells on each slide were analyzed with a Bausch and Lomb Pattern Analysis System automated image analyzer.


Author(s):  
R.P. Goehner ◽  
W.T. Hatfield ◽  
Prakash Rao

Computer programs are now available in various laboratories for the indexing and simulation of transmission electron diffraction patterns. Although these programs address themselves to the solution of various aspects of the indexing and simulation process, the ultimate goal is to perform real time diffraction pattern analysis directly off of the imaging screen of the transmission electron microscope. The program to be described in this paper represents one step prior to real time analysis. It involves the combination of two programs, described in an earlier paper(l), into a single program for use on an interactive basis with a minicomputer. In our case, the minicomputer is an INTERDATA 70 equipped with a Tektronix 4010-1 graphical display terminal and hard copy unit.A simplified flow diagram of the combined program, written in Fortran IV, is shown in Figure 1. It consists of two programs INDEX and TEDP which index and simulate electron diffraction patterns respectively. The user has the option of choosing either the indexing or simulating aspects of the combined program.


Author(s):  
James R. Gaylor ◽  
Fredda Schafer ◽  
Robert E. Nordquist

Several theories on the origin of the melanosome exist. These include the Golgi origin theory, in which a tyrosinase-rich protein is "packaged" by the Golgi apparatus, thus forming the early form of the melanosome. A second theory postulates a mitochondrial origin of melanosomes. Its author contends that the melanosome is a modified mitochondria which acquires melanin during its development. A third theory states that a pre-melanosome is formed in the smooth or rough endoplasmic reticulum. Protein aggregation is suggested by one author as a possible source of the melanosome. This fourth theory postulates that the melanosome originates when the protein products of several genetic loci aggregate in the cytoplasm of the melanocyte. It is this protein matrix on which the melanin is deposited. It was with these theories in mind that this project was undertaken.


2001 ◽  
Vol 13 (s1) ◽  
pp. S2-S5 ◽  
Author(s):  
Shinji Tanaka ◽  
Ken Haruma ◽  
Shinji Nagata ◽  
Shiro Oka ◽  
Kazuaki Chayama

1997 ◽  
Vol 222 (1-2) ◽  
pp. 131-136
Author(s):  
K Muruganandam
Keyword(s):  

1969 ◽  
Vol 53 (2, Pt.1) ◽  
pp. 136-139 ◽  
Author(s):  
Robert Tanofsky ◽  
R. Ronald Shepps ◽  
Paul J. O'Neill

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