Results 31 to 40 of about 1,982 (192)
Axially Symmetric Null dust Spacetime, Naked Singularity and Cosmic Time Machine [PDF]
, 2017 In this article, we present a gravitational collapse null dust solution of the Einstein field equations. The spacetime is regular everywhere except on the symmetry axis where it possesses a naked curvature singularity, and admits one parameter isometry ...
Ahmed, Faizuddin
core +3 more sources
TAXON, Volume 69, Issue 5, Page 892-926, October 2020., 2020 Abstract Sedum, containing approximately 470 species, is by far the largest genus of Crassulaceae. Three decades of molecular phylogenetic work have provided evidence for the non‐monophyly of Sedum and many more of the 30 genera of Crassulaceae subfam. Sempervivoideae.
Thibaud F.E. Messerschmid +3 more
wiley +1 more source
New scientific discoveries: Plants and fungi
PLANTS, PEOPLE, PLANET, Volume 2, Issue 5, Page 371-388, September 2020., 2020 Research and publication of the planet's remaining plant and fungal species as yet unknown to science is essential if we are to address the United Nations Sustainable Development Goal (SDG) 15 “Life on Land” which includes the protection of terrestrial ecosystems and halting of biodiversity loss.
Martin Cheek +18 more
wiley +1 more source
Las plantas vasculares endémicas de la Sierra Madre del Sur, México
Botanical Sciences, 2021 Antecedentes: La Sierra Madre del Sur (SMS) se ubica paralela al Océano Pacífico, desde Jalisco a Oaxaca. Es la provincia más biodiversa de México, con 7,016 especies de plantas vasculares.
Juvenal Aragón-Parada +5 more
doaj +1 more source
The shape of things to come: Topological data analysis and biology, from molecules to organisms
Developmental Dynamics, Volume 249, Issue 7, Page 816-833, July 2020., 2020 Abstract Shape is data and data is shape. Biologists are accustomed to thinking about how the shape of biomolecules, cells, tissues, and organisms arise from the effects of genetics, development, and the environment. Less often do we consider that data itself has shape and structure, or that it is possible to measure the shape of data and analyze it ...
Erik J. Amézquita +4 more
wiley +1 more source
Acta Botanica Mexicana, 2023 Antecedentes y Objetivos: El Libellus de Medicinalibus Indorum Herbis (Librito de las Hierbas Medicinales de los Indios) incluye 185 plantas bellamente ilustradas, 131 interpretadas a especie.
Dulce Yehimi López-Miranda +8 more
doaj +1 more source
Plants and mushrooms associated with animal poisoning incidents in South Africa
Veterinary Record Open, Volume 7, Issue 1, 2020., 2020 Background There is extensive literature on animal poisoning from plants and mushrooms worldwide; however, there is limited account of poisoning from South Africa. Methods This study sought to describe and provide an overview of animal poison exposures in South Africa. Poisoning episodes reported to the Poisons Information Helpline of the Western Cape,
Moleseng Claude Moshobane +6 more
wiley +1 more source
Acta Botanica Mexicana, 2021 Antecedentes y Objetivos: Oaxaca, con más de 9362 especies de plantas vasculares y 26 tipos de vegetación, es el estado con mayor diversidad florística en México.
Juvenal Aragón-Parada +2 more
doaj +1 more source
Natural Product Communications, 2015 The present study is engaged in the chemical composition of methanol extracts of Sedum taxa from the central part of the Balkan Peninsula, and representatives from other genera of Crassulaceae ( Crassula, Echeveria and Kalanchoe ) considered as out ...
Gordana S. Stojanović +2 more
doaj +1 more source
Dos especies nuevas de Crassulaceae del sur de Jalisco, México
Acta Botanica Mexicana, 2015 Con base en colectas procedentes del sur del estado de Jalisco, se describen Echeveria rulfiana y Villadia ramirezii como especies nuevas para la ciencia. La primera se asigna a la serie Gibbiflorae y se compara con E. marianae, E.
H. David Jimeno-Sevilla +2 more
doaj +1 more source