Results 21 to 30 of about 951,010 (346)

Identification and Inventory Pteridophyta in Mount Gede Pangrango National Park, Cibodas, West Java

open access: yesRisenologi, 2021
The fern is one of the plants that is easily found in Indonesia and it has a high diversity and distribution. Ferns are among the simplest vascular plants and are classified into sporous cormophytes which already have transport vessels.
Imam Safir Alwan Nurza, Fitri Andriyani
doaj   +1 more source

The C-Fern (Ceratopteris richardii) genome: insights into plant genome evolution with the first partial homosporous fern genome assembly

open access: yesScientific Reports, 2019
Ferns are notorious for possessing large genomes and numerous chromosomes. Despite decades of speculation, the processes underlying the expansive genomes of ferns are unclear, largely due to the absence of a sequenced homosporous fern genome. The lack of
D. Marchant   +6 more
semanticscholar   +1 more source

Modelling of Airship Flight Mechanics by the Projection Equivalent Method

open access: yesInternational Journal of Advanced Robotic Systems, 2015
This article describes the projection equivalent method (PEM) as a specific and relatively simple approach for the modelling of aircraft dynamics. By the PEM it is possible to obtain a mathematic al model of the aerodynamic forces and momentums acting on
Frantisek Jelenciak   +2 more
doaj   +1 more source

Sexual and Apogamous Species of Woodferns Show Different Protein and Phytohormone Profiles

open access: yesFrontiers in Plant Science, 2021
The gametophyte of ferns reproduces either by sexual or asexual means. In the latter, apogamy represents a peculiar case of apomixis, in which an embryo is formed from somatic cells.
Helena Fernández   +10 more
doaj   +1 more source

Global fern and lycophyte richness explained: How regional and local factors shape plot richness

open access: yesJournal of Biogeography, 2019
To disentangle the influence of environmental factors at different spatial grains (regional and local) on fern and lycophyte species richness and to ask how regional and plot‐level richness are related to each other.
Anna Weigand   +34 more
semanticscholar   +1 more source

An Automatic Gait Feature Extraction Method for Identifying Gait Asymmetry Using Wearable Sensors

open access: yesSensors, 2018
This paper aims to assess the use of Inertial Measurement Unit (IMU) sensors to identify gait asymmetry by extracting automatic gait features. We design and develop an android app to collect real time synchronous IMU data from legs.
Arif Reza Anwary   +2 more
doaj   +1 more source

Rediscovering a species not seen for a hundred years, Stathmopoda tacita (Meyrick, 1913) (Lepidoptera, Stathmopodidae), with its unusual fern-spore-feeding life history [PDF]

open access: yesBiodiversity Data Journal, 2023
Despite being the second largest group of vascular plants, ferns are scarcely reported being fed by insects when compared to angiosperms. Within these fern-feeding insects, lepidopterans are poorly represented and are restricted only to specific groups ...
Zong-Yu Shen, Yu-Feng Hsu
doaj   +3 more sources

Valuation of Company Merger from the Shareholders’ Point of View [PDF]

open access: yesAmfiteatru Economic, 2017
By means of a company merger formerly legally and economically independent companies are tied up to an economic entity. To order the financial state of affairs after the merger, the current shareholders must revalue their stake in the merged company. The
Christian Toll , Thomas Hering
doaj  

Documenting the Sporangium Development of the Polypodiales Fern Pteris multifida

open access: yesFrontiers in Plant Science, 2022
Reconstructing the development of sporangia in seed-free vascular plants provides crucial information about key processes enabling the production of spores that are important in the life cycle of these plants.
Nai-Ying Yang   +6 more
doaj   +1 more source

Environmentally driven extinction and opportunistic origination explain fern diversification patterns

open access: yesScientific Reports, 2017
Combining palaeontological and neontological data offers a unique opportunity to investigate the relative roles of biotic and abiotic controls of species diversification, and the importance of origination versus extinction in driving evolutionary ...
S. Lehtonen   +8 more
semanticscholar   +1 more source

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