Results 11 to 20 of about 617 (194)

On Pointwise Smooth Dendroids

open access: yesRevista Integración, 2022
This is a survey paper on dendroids, smooth dendroids, and mainly on pointwise smooth dendroids based on the work of J. J. Charatonik and C. Eberhart (dendroids and smooth dendroids) and S. T. Czuba (pointwise smooth dendroids).
Sergio Macías
doaj   +2 more sources

Diagenesis of the microbialites in the Permian–Triassic boundary section at Laolongdong, Chongqing, South China

open access: yesJournal of Palaeogeography, 2013
An interval of limestone, which generally has a dendroid appearance on outcrops, has been found in several Permian–Triassic boundary (PTB) sections in South China, and interpreted to be microbialites.
Jiang Hongxia, Wu Yasheng
doaj   +2 more sources

Bottlenecks in dendroids

open access: yesTopology and its Applications, 2003
A subcontinuum C of a dendroid X is a bottleneck if it intersects every arc connecting two nonempty open subsets of X. We prove that every dendroid has a point p contained in arbitrarily small bottlenecks. Moreover, every plane dendroid contains a single
Minc, Piotr
core   +3 more sources

Unveiling coralline diversity of mesophotic rhodoliths in subtropical Japan, including new species of Sporolithon, emended genera Orientalilithon and Roseolithon (Corallinophycidae, Rhodophyta). [PDF]

open access: yesJ Phycol
Abstract The mesophotic zone off Tanegashima Island (approximately 30–40 m deep) is a marine macroalgal hotspot in subtropical Japan; however, the taxonomic diversity of calcifying red algal community remains poorly understood. Our phylogenetic analyses based on psbA, rbcL, and COI‐5P gene markers disclosed the presence of at least 12 rhodolith‐forming
Min-Khant-Kyaw   +3 more
europepmc   +2 more sources

Dendroidal sets [PDF]

open access: yesAlgebraic & Geometric Topology, 2007
We introduce the concept of a dendroidal set. This is a generalization of the notion of a simplicial set, specially suited to the study of operads in the context of homotopy theory. We define a category of trees, which extends the category $Δ$ used in simplicial sets, whose presheaf category is the category of dendroidal sets.
Moerdijk, Ieke, Weiss, Ittay
openaire   +8 more sources

Endpoints of smooth plane dendroids

open access: yesFundamenta Mathematicae
Let $X$ be a smooth dendroid in the plane $\mathbb R^2$. We show that each endpoint of $X$ is arcwise accessible from $\mathbb R^2\setminus X$, and that the space of endpoints $E(X)$ has the property of a circle. In the event that $E(X)$ is connected, we
Lipham, David S.
core   +3 more sources

Identification of Volatile Flavor Compounds of Zaobaijian Black Tea Harvested in Different Seasons Based on HS-SPME-GC-MS and PLS-DA

open access: yesShipin gongye ke-ji, 2023
By using headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS), the volatile flavor compounds were determined for 15 Zaobaijian black tea samples harvested in spring, summer and autumn in Junlian, Sichuan Province ...
Wanshu PAN   +4 more
doaj   +1 more source

Multigene phylogeny reveals a cryptic diversity in the genus Dinobryon (Chrysophyceae) with integrative description of five new species

open access: yesFrontiers in Plant Science, 2023
IntroductionThe genus Dinobryon is one of the most recognizable chrysophyte genera, characterized by dendroid colonies with a biflagellate inside each cellulosic lorica. The representative forms of lorica are cylindrical, conical, vase, or funnel shaped,
Minseok Jeong   +3 more
doaj   +1 more source

On dendroids with Kelley’s property [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
It is proved that if a dendroid has Kelley’s property, then it is smooth. This is a correction of an error from [ 4 ].
openaire   +2 more sources

Leaf structure of species of the Brassicaceae Burnett family in Southwestern Kyzylkum, Uzbekistan [PDF]

open access: yesCaspian Journal of Environmental Sciences
Leaf species of the family Brassicaceae have been studied, diagnostic features have been identified. Omitted by various types of trichomes: stellate, dendroid stomata are randomly arranged, numerous, non-submerged, mostly anomatid hemiparacytic ...
Gulbahar Tursinbayeva   +10 more
doaj   +1 more source

Home - About - Disclaimer - Privacy