Reliable classification of intentional cranial vault modification and nonsynostotic deformational plagiocephaly using 3D geometric morphometrics

HOMO ◽  
2021 ◽  
Author(s):  
Valda Gail Black ◽  
Danielle Shawn Kurin
Keyword(s):  
Geometric Morphometrics ◽  
Cranial Vault ◽  
Deformational Plagiocephaly ◽  
3D Geometric Morphometrics ◽  
Reliable Classification

scholarly journals Wing Morphometrics of Aedes Mosquitoes from North-Eastern France

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 341
Author(s):  
Jean-Philippe Martinet ◽  
Hubert Ferté ◽  
Pacôme Sientzoff ◽  
Eva Krupa ◽  
Bruno Mathieu ◽  
...  
Keyword(s):  
Geometric Morphometrics ◽  
Canonical Variate ◽  
Geometric Morphometric ◽  
Aedes Mosquitoes ◽  
North Eastern ◽  
Arboviral Diseases ◽  
Geometric Morphometric Analysis ◽  
Wing Morphometrics ◽  
Reliable Classification

Background: In the context of the increasing circulation of arboviruses, a simple, fast and reliable identification method for mosquitoes is needed. Geometric morphometrics have proven useful for mosquito classification and have been used around the world on known vectors such as Aedes albopictus. Morphometrics applied on French indigenous mosquitoes would prove useful in the case of autochthonous outbreaks of arboviral diseases. Methods: We applied geometric morphometric analysis on six indigenous and invasive species of the Aedes genus in order to evaluate its efficiency for mosquito classification. Results: Six species of Aedes mosquitoes (Ae. albopictus, Ae. cantans, Ae. cinereus, Ae. sticticus, Ae. japonicus and Ae. rusticus) were successfully differentiated with Canonical Variate Analysis of the Procrustes dataset of superimposed coordinates of 18 wing landmarks. Conclusions: Geometric morphometrics are effective tools for the rapid, inexpensive and reliable classification of at least six species of the Aedes genus in France.

scholarly journals Functional signals and covariation in triquetrum and hamate shape of extant primates using 3D Geometric Morphometrics

2021 ◽  
Author(s):  
Marie J. M. Vanhoof ◽  
Lorenzo Galletta ◽  
Isabelle De Groote ◽  
Evie E. Vereecke
Keyword(s):  
Geometric Morphometrics ◽  
3D Geometric Morphometrics

Deformational Posterior Plagiocephaly: Diagnosis and Treatment

2002 ◽  
Vol 39 (6) ◽  
pp. 582-586 ◽  
Author(s):  
John F. Teichgraeber ◽  
Jeffrey K. Ault ◽  
James Baumgartner ◽  
Amy Waller ◽  
Marion Messersmith ◽  
...  
Keyword(s):  
Prospective Study ◽  
Treatment Outcomes ◽  
Cranial Base ◽  
Anthropometric Measurements ◽  
Diagnosis And Treatment ◽  
Cranial Vault ◽  
Medical Conditions ◽  
Deformational Plagiocephaly ◽  
Helmet Therapy ◽  
Posterior Plagiocephaly

Objective This study was designed to evaluate the effectiveness of helmet therapy (DOC band) in the correction of patients with moderate to severe posterior deformational plagiocephaly. Design In this prospective study, the infants were evaluated using 18 anthropometric measurements. Patients The charts of 248 patients seen between August 1, 1995, and July 31, 1999, were reviewed, and 125 met the criteria for inclusion in the study. All the patients had posterior deformational plagiocephaly with no other craniofacial deformities or medical conditions. Treatment was instituted prior to 1 year of age, and all patients were compliant with DOC band usage and had complete anthropometric measurements. Results The study recorded a 41.56% (p < .001) reduction in cranial vault asymmetry and a 40.23% (p < .001) reduction in cranial base asymmetry. Orbitotragial asymmetry was improved 18.72% (p = .0738). The age at which treatment was begun was not a significant factor in predicting treatment outcomes.

scholarly journals An Automated Method for the Quantification and Fractal Analysis of Immunostaining

2004 ◽  
Vol 26 (3) ◽  
pp. 125-134
Author(s):  
Armin Gerger ◽  
Patrick Bergthaler ◽  
Josef Smolle
Keyword(s):  
Fractal Analysis ◽  
Quantitative Description ◽  
Fractal Dimensionality ◽  
Texture Features ◽  
Second Step ◽  
Digital Information ◽  
Automated Method ◽  
Reliable Classification ◽  
The One

Aims. In tissue counter analysis (TCA) digital images of complex histologic sections are dissected into elements of equal size and shape, and digital information comprising grey level, colour and texture features is calculated for each element. In this study we assessed the feasibility of TCA for the quantitative description of amount and also of distribution of immunostained material. Methods. In a first step, our system was trained for differentiating between background and tissue on the one hand and between immunopositive and so‐called other tissue on the other. In a second step, immunostained slides were automatically screened and the procedure was tested for the quantitative description of amount of cytokeratin (CK) and leukocyte common antigen (LCA) immunopositive structures. Additionally, fractal analysis was applied to all cases describing the architectural distribution of immunostained material. Results. The procedure yielded reproducible assessments of the relative amounts of immunopositive tissue components when the number and percentage of CK and LCA stained structures was assessed. Furthermore, a reliable classification of immunopositive patterns was found by means of fractal dimensionality. Conclusions. Tissue counter analysis combined with classification trees and fractal analysis is a fully automated and reproducible approach for the quantitative description in immunohistology.

scholarly journals Alignment and Proficiency of Virgin Olive Oil Sensory Panels: The OLEUM Approach

Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 355 ◽  
Author(s):  
Sara Barbieri ◽  
Karolina Brkić Bubola ◽  
Alessandra Bendini ◽  
Milena Bučar-Miklavčič ◽  
Florence Lacoste ◽  
...  
Keyword(s):  
Quality Control ◽  
Decision Tree ◽  
Olive Oil ◽  
Reference Materials ◽  
Virgin Olive Oil ◽  
Sensory Data ◽  
Physical Chemical ◽  
Control Procedures ◽  
Reliable Classification

A set of 334 commercial virgin olive oil (VOO) samples were evaluated by six sensory panels during the H2020 OLEUM project. Sensory data were elaborated with two main objectives: (i) to classify and characterize samples in order to use them for possible correlations with physical–chemical data and (ii) to monitor and improve the performance of panels. After revision of the IOC guidelines in 2018, this work represents the first published attempt to verify some of the recommended quality control tools to increase harmonization among panels. Specifically, a new “decision tree” scheme was developed, and some IOC quality control procedures were applied. The adoption of these tools allowed for reliable classification of 289 of 334 VOOs; for the remaining 45, misalignments between panels of first (on the category, 21 cases) or second type (on the main perceived defect, 24 cases) occurred. In these cases, a “formative reassessment” was necessary. At the end, 329 of 334 VOOs (98.5%) were classified, thus confirming the effectiveness of this approach to achieve a better proficiency. The panels showed good performance, but the need to adopt new reference materials that are stable and reproducible to improve the panel’s skills and agreement also emerged.

scholarly journals Relevance of wing morphology in distinguishing and classifying genera and species of Stenogastrinae wasps

2011 ◽  
Vol 80 (3) ◽  
pp. 191-199 ◽  
Author(s):  
David Baracchi ◽  
Leonardo Dapporto ◽  
Stefano Turillazzi
Keyword(s):  
Geometric Morphometrics ◽  
Species Identification ◽  
Reliable Method ◽  
Wing Morphology ◽  
Wing Vein ◽  
Statistical Assessment ◽  
Genus Level ◽  
Nesting Material ◽  
First Time

The phylogeny of the Stenogastrinae wasps is still under discussion and their systematic incomplete. In the present work we used geometric morphometrics, a technique based on a rigorous statistical assessment of shape, to compare the forewings of fifteen species of Stenogastrinae wasps belonging to four different genera to ascertain whether this approach may be used as a reliable method in the study of the taxonomy of the group. The results show that the wing vein junctions can be diagnostic for both genus and species identification. For the first time in this subfamily, we propose a phylogenetic classification of the species based on wing morphology that largely agrees with the cladistic data available at genus level and reflects the differences among species in terms of nesting material and architecture of their nest.

scholarly journals Clumpiness: time-domain classification of red giant evolutionary states

2020 ◽  
Vol 497 (4) ◽  
pp. 4843-4856 ◽  
Author(s):  
James S Kuszlewicz ◽  
Saskia Hekker ◽  
Keaton J Bell
Keyword(s):  
Time Series ◽  
Time Series Data ◽  
Series Data ◽  
Red Giants ◽  
Distance Information ◽  
Evolutionary State ◽  
State Classification ◽  
Red Giant ◽  
Reliable Classification

ABSTRACT Long, high-quality time-series data provided by previous space missions such as CoRoT and Kepler have made it possible to derive the evolutionary state of red giant stars, i.e. whether the stars are hydrogen-shell burning around an inert helium core or helium-core burning, from their individual oscillation modes. We utilize data from the Kepler mission to develop a tool to classify the evolutionary state for the large number of stars being observed in the current era of K2, TESS, and for the future PLATO mission. These missions provide new challenges for evolutionary state classification given the large number of stars being observed and the shorter observing duration of the data. We propose a new method, Clumpiness, based upon a supervised classification scheme that uses ‘summary statistics’ of the time series, combined with distance information from the Gaia mission to predict the evolutionary state. Applying this to red giants in the APOKASC catalogue, we obtain a classification accuracy of $\sim 91{{\ \rm per\ cent}}$ for the full 4 yr of Kepler data, for those stars that are either only hydrogen-shell burning or also helium-core burning. We also applied the method to shorter Kepler data sets, mimicking CoRoT, K2, and TESS achieving an accuracy $\gt 91{{\ \rm per\ cent}}$ even for the 27 d time series. This work paves the way towards fast, reliable classification of vast amounts of relatively short-time-span data with a few, well-engineered features.

scholarly journals Family-group names proposed in the family Pseudococcidae (Hemiptera: Sternorrhyncha: Coccoidea)

Zootaxa ◽  
2010 ◽  
Vol 2400 (1) ◽  
pp. 66 ◽  
Author(s):  
D. J. WILLIAMS ◽  
P. J. GULLAN
Keyword(s):  
Family Group ◽  
The Family ◽  
Family Level ◽  
The Status ◽  
Reliable Classification

Since Cockerell (1905) erected the family-group name Pseudococcini, the name has become widely used for all mealybugs. Lobdell (1930) raised the status of the group to family level as the Pseudococcidae, but it was not until Borchsenius (1949) and Ferris (1950) accepted the family level that the rank of Pseudococcidae became more widely accepted within the superfamily Coccoidea. Various tribes and subtribes have been introduced without any reliable classification of the family.

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