Estimation of neotectogenesis factors of the Middle Dnieper region by structural-morphometric method

2020 ◽  
Author(s):  
L. V. Tustanovska ◽  
V. V. Shevchuk ◽  
O. M. Ivanik ◽  
К. P. Hadiatska ◽  
S. G. Volkova
Keyword(s):  
Morphometric Method

Welcome back Mr. Rudkin: differentiating Papilio zelicaon and Papilio polyxenes in Southern California (Lepidoptera: Papilionidae)

Zootaxa ◽  
2020 ◽  
Vol 4877 (3) ◽  
pp. 422-428
Author(s):  
KOJIRO SHIRAIWA ◽  
NICK V. GRISHIN
Keyword(s):  
Mitochondrial Dna ◽  
Southern California ◽  
Sympatric Species ◽  
Wing Pattern ◽  
Papilio Polyxenes ◽  
Morphometric Method ◽  
Western Us ◽  
Subjective Synonym

We studied wing pattern characters to distinguish closely related sympatric species Papilio zelicaon Lucas, 1852 and Papilio polyxenes Fabricius, 1775 in Southern California, and developed a morphometric method based on the ventral black postmedian band. Application of this method to the holotype of Papilio [Zolicaon variety] Coloro W. G. Wright, 1905, the name currently applied to the P. polyxenes populations, revealed that it is a P. zelicaon specimen. The name for western US polyxenes subspecies thus becomes Papilio polyxenes rudkini (F. & R. Chermock, 1981), reinstated status, and we place coloro as a junior subjective synonym of P. zelicaon. Furthermore, we sequenced mitochondrial DNA COI barcodes of rudkini and coloro holotypes and compared them with those of polyxenes and zelicaon specimens, confirming rudkini as polyxenes and coloro as zelicaon.

scholarly journals Topological Data Analysis as a Morphometric Method: Using Persistent Homology to Demarcate a Leaf Morphospace

2018 ◽  
Vol 9 ◽  
Author(s):  
Mao Li ◽  
Hong An ◽  
Ruthie Angelovici ◽  
Clement Bagaza ◽  
Albert Batushansky ◽  
...  
Keyword(s):  
Data Analysis ◽  
Persistent Homology ◽  
Topological Data Analysis ◽  
Morphometric Method ◽  
Topological Data

scholarly journals A new Middle Miocene tarsier from Thailand and the reconstruction of its orbital morphology using a geometric–morphometric method

2010 ◽  
Vol 278 (1714) ◽  
pp. 1956-1963 ◽  
Author(s):  
Yaowalak Chaimanee ◽  
Renaud Lebrun ◽  
Chotima Yamee ◽  
Jean-Jacques Jaeger
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Middle Miocene ◽  
Taxonomic Diversity ◽  
Geometric Morphometric ◽  
Morphometric Method ◽  
Extant Species ◽  
Degree Of Convergence ◽  
High Degree ◽  
Geometric Morphometric Method

Tarsius is an extant genus of primates endemic to the islands of Southeast Asia that is characterized by enormously enlarged orbits reflecting its nocturnal activity pattern. Tarsiers play a pivotal role in reconstructing primate phylogeny, because they appear to comprise, along with Anthropoidea, one of only two extant haplorhine clades. Their fossils are extremely rare. Here, we describe a new species of Tarsius from the Middle Miocene of Thailand. We reconstructed aspects of its orbital morphology using a geometric–morphometric method. The result shows that the new species of Tarsius had a very large orbit (falling within the range of variation of modern Tarsius ) with a high degree of frontation and a low degree of convergence. Its relatively divergent lower premolar roots suggest a longer mesial tooth row and therefore a longer muzzle than in extant species. The new species documents a previous unknown Miocene group of Tarsius , indicating greater taxonomic diversity and morphological complexity during tarsier evolution. The current restriction of tarsiers to offshore islands in Southeast Asia appears to be a relatively recent phenomenon.

Prediction of composition traits of young Charolais bull carcasses using a morphometric method

Meat Science ◽  
1996 ◽  
Vol 44 (1-2) ◽  
pp. 93-104 ◽  
Author(s):  
E. Laville ◽  
V. Martin ◽  
O. Bastien
Keyword(s):  
Morphometric Method

Perimeter-based Fourier analysis: a new morphometric method applied to the trilobite cranidium

1989 ◽  
Vol 63 (6) ◽  
pp. 880-885 ◽  
Author(s):  
Mike Foote
Keyword(s):  
Fourier Analysis ◽  
Fourier Method ◽  
Radial Distance ◽  
Closed Curve ◽  
Shape Information ◽  
Morphometric Method ◽  
Higher Taxa ◽  
Starting Point ◽  
Dependent Variables ◽  
Independent Variable

A new Fourier method is presented to quantify shapes too complex to be described by conventional polar Fourier analysis. The length along a closed curve serves as the independent variable. The centroid of the curve is determined and for each point on the curve two different dependent variables are defined, based on: 1) the angle defined by the starting point, the centroid, and the point on the curve; and 2) the radial distance from the centroid to the point on the curve. The method is used to describe the trilobite cranidium, and 12 harmonic coefficients are found to summarize 99 percent of the shape information contained in the cranidial outline. In an application to trilobite evolution during the Cambrian and Ordovician, it is found that higher taxa of trilobites become progressively more distinct morphologically. This result is in agreement with previous qualitative observations, and is attributable to an increase in morphologic dispersion among higher taxa, but not to a decrease in morphologic dispersion within higher taxa.

Effects of melatonin and 6-methoxy-tetrahydro-β-carboline in light induced retinal damage: A computerized morphometric method

Life Sciences ◽  
1984 ◽  
Vol 35 (20) ◽  
pp. 1997-2001 ◽  
Author(s):  
Markku Leino ◽  
Ilkka-Matti Aho ◽  
Eija Kari ◽  
Jukka Gynther ◽  
Seppo Markkanen
Keyword(s):  
Retinal Damage ◽  
Morphometric Method

scholarly journals Rapid morphometric method for assessment of thyroid functional activity

1994 ◽  
Vol 40 (4) ◽  
pp. 19-21
Author(s):  
Yu. B. Kirillov ◽  
A. P. Chumachenko ◽  
V. G. Aristarkhov ◽  
A. A. Potapov ◽  
I. V. Panteleyev
Keyword(s):  
Postoperative Period ◽  
Functional Activity ◽  
Thyroid Tissue ◽  
Subtotal Resection ◽  
Morphometric Method ◽  
Euthyroid State ◽  
Active Zones ◽  
Toxic Goiter

The incidence of postoperative hypothyrosis after subtotal resection of the thyroid for diffuse toxic goiter is rather high, 40-50 % according to many authors. A method is suggested permitting assessment of the share of active zones during surgery. A certain amount of thyroid tissue is left with due consideration for this share, this amount being sufficient to attain an euthyroid state in the postoperative period.

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