Classification and phylogeny research v1

Methods for morphological classification and molecular phylogeny of freshwater red algae

A Historical Perspective of Bladderworts (Utricularia): Traps, Carnivory and Body Architecture

The genus Utricularia includes around 250 species of carnivorous plants, commonly known as bladderworts. The generic name Utricularia was coined by Carolus Linnaeus in reference to the carnivorous organs (Utriculus in Latin) present in all species of the genus. Since the formal proposition by Linnaeus, many species of Utricularia were described, but only scarce information about the biology for most species is known. All Utricularia species are herbs with vegetative organs that do not follow traditional models of morphological classification. Since the formal description of Utricularia in the 18th century, the trap function has intrigued naturalists. Historically, the traps were regarded as floating organs, a common hypothesis that was maintained by different botanists. However, Charles Darwin was most likely the first naturalist to refute this idea, since even with the removal of all traps, the plants continued to float. More recently, due mainly to methodological advances, detailed studies on the trap function and mechanisms could be investigated. This review shows a historical perspective on Utricularia studies which focuses on the traps and body organization.

THE POSSIBILITIES OF THE “CLUSTER CARTOGRAPHY” TOOL FOR THE STUDY OF THE INNER STRUCTURES OF GALAXY CLUSTERS

We describe the possibilities of the “Cluster Cartography” tool which was created for detailed study of the 2D distribution of galaxies in the clusters. The main tasks of the “Cluster Cartography” tool were the detailed study of the morphologyof galaxy clusters using the statistically significant numerical criteria as well as to detect their regular peculiarities. The tool allows to create the 2D map with positions of galaxies in the cluster field and show for each cluster member its shape and orientation as a best-fit ellipse using input catalogue data. The size of symbols for galaxies correspond to input data.It may reflect the galaxy image in arcseconds from catalogue in the map 4000×4000arcsec. Another way connects the size of the symbol with the magnitude of the galaxy. Tool is able to build the map in four modes: the symbols are dots; the symbols are circles with diameters reflected the magnitudes of galaxies; the symbols are ellipses with size reflected the magnitudesand both ellipticities and orientation from the input catalogue; the symbols illustrate the shape of galaxies in projection to the celestial sphere. The “Cluster Cartography” algorithms allow to detect the standard cases in galaxy distribution, suchas the degree of concentration to the cluster center and/or to some line on a statistically significant level using the numerical criteria. Also “Cluster Cartography” allows to detect other features, such as crosses, semi-crosses, complex crosses and short compact chains, as well as to export the list of galaxies forming the peculiarities for the futurestudy. The final version of the “Cluster Cartography” allows to realize the modern scheme for detailed morphological classification of galaxy clusters. The “Cluster Cartography” is powerful and perspective tool for study of features of galaxy clusters.

A Morphological Classification of 18,190 Molecular Clouds Identified in 12CO Data from the MWISP Survey

We attempt to visually classify the morphologies of 18,190 molecular clouds, which are identified in the 12CO(1–0) spectral line data over ∼450 deg2 of the second Galactic quadrant from the Milky Way Imaging Scroll Painting project. Using the velocity-integrated intensity maps of the 12CO(1–0) emission, molecular clouds are first divided into unresolved and resolved ones. The resolved clouds are further classified as nonfilaments or filaments. Among the 18,190 molecular clouds, ∼25% are unresolved, ∼64% are nonfilaments, and ∼11% are filaments. In the terms of the integrated flux of 12CO(1–0) spectra of all 18,190 molecular clouds, ∼90% are from filaments, ∼9% are from nonfilaments, and the remaining ∼1% are from unresolved sources. Although nonfilaments are dominant in the number of the discrete molecular clouds, filaments are the main contributor of 12CO emission flux. We also present the number distributions of the physical parameters of the molecular clouds in our catalog, including their angular sizes, velocity spans, peak intensities of 12CO(1–0) emission, and 12CO(1–0) total fluxes. We find that there is a systematic difference between the angular sizes of the nonfilaments and filaments, with the filaments tending to have larger angular scales. The H2 column densities of them are not significantly different. We also discuss the observational effects, such as those induced by the finite spatial resolution, beam dilution, and line-of-sight projection, on the morphological classification of molecular clouds in our sample.

The Morphological Classification of the Penile Frenulum in Chinese's People and its Clinical Application Value in the Frenulum Malposition of Circumcision with the Disposable Circumcision Suture Device (DCSD)

Background: to conclude the clinical experience of the disposable circumcision suture device (DCSD), to describe the morphological classification of the penile frenulum in Chinese's people, to find a way to solve the malposition of the penile frenulum in the surgery with disposable circumcision suture deviceMethods: From November 2013 to April 2021, there were 2265 consecutive Chinese patients with phimosis 367(16.2%) or redundant prepuce 1898 (83.8%) who underwent circumcision in our hospital. Each patient’s penile frenulum morphological feature was recorded and grouped according to the intraoperative photo documentation. There were four type of frenulum feature: typeⅠ, the middle raphe, a middle line longitudinal from the glan to the scrotal raphe; typeⅡ,the middle double raphe or middle band; type Ⅲ, the diamond or lozenge-shaped raphe; type Ⅳ was marked by the some hyperpigmentation zone. We also reported the convexity frenulum cutting site(CFCS) which could be palpated that a small rounded eminence tissue at the ventral prepuce middle raphe during the prodedure. Other data recorded were operation time, type of anesthesia, intra-operative blood loss, incision healing time, complications, mainly focus on the frenulum distortion, patient satisfaction. RESULTS: According to our morphological classification there were 842 (37.2%) cases in type Ⅰ, 258 (11.4%) cases in type Ⅱ; 107 (4.7%) cases in typeⅢA, 885 (39.1%) cases in type ⅢB and 173 (7.6%) cases in type Ⅳ. Following the classification treatment principle reported in the text no notorious frenulum deviation was observed after the initial 100 cases. Conclusion: The morphological classification of the penile frenulum incombinating with the anatomy marker of CFCS will facilitate accurate identification of the frenulum location, better define its right position, and provide a guide for the DCSD surgery for the individualized patients. The method described in this study could improve the success of the circumcision procedures, lower the related complication and is important to make the device acceptable and popular.