Results 21 to 30 of about 286,641 (292)

Measuring the Effects of “Opportunistic Defense” of the Bracken Fern, \u3ci\u3e(Pteridium Aquilinum)\u3c/i\u3e by Patrolling Ants (Hymenoptera: Formicidae) at Pierce Cedar Creek Institute in South Central Michigan [PDF]

open access: yes, 2018
In this study we show that in South Central Michigan (Pierce Cedar Creek Institute) eight ant species patrol bracken fern (Pteridium aquilinum) during the sensitive crozier growth stage.
Douglas, Matthew M, Oldenkamp, Ricki E
core   +2 more sources

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

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

Quercetin elevates p27Kip1 and arrests both primary and HPV16 E6/E7 transformed human keratinocytes in G1 [PDF]

open access: yes, 2003
Our previous work with primary bovine fibroblasts demonstrated that quercetin, a potent mutagen found in high levels in bracken fern (Pteridium aquilinum), arrested cells in G1 and G2/M, in correlation with p53 activation.
Alan G. Casson   +30 more
core   +1 more source

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

Laser Diode Induced Lighting Modules [PDF]

open access: yes, 2016
Laser diodes have the potential of becoming the light engines of future lighting technology since they have negligible efficiency droop factor, unlike light emitting diodes.
Fern, G.R.   +7 more
core   +2 more sources

Gamification Risks to Enterprise Teamwork: Taxonomy, Management Strategies and Modalities of Application

open access: yesSystems, 2019
Gamification corresponds to the use of game elements to encourage certain attitudes and behaviours in a serious context. When applied to enterprise teamwork, gamification can lead to negative side-effects which compromise its benefits.
Abdullah Algashami   +4 more
doaj   +1 more source

Responsibility modulates neural mechanisms of outcome processing : an ERP study

open access: yes, 2011
The role of personal responsibility in decision-making and its influence on the outcome evaluation process have been investigated relatively rarely in cognitive neuroscience.
Han, Chunhui   +4 more
core   +1 more source

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