Results 11 to 20 of about 2,175 (175)

Efficient Automatic Pollen Recognition From Fossil Pollen Samples: A High-Resolution Example Record From Palaeolake Kieshofer Moor, Northeastern Germany. [PDF]

open access: yesEcol Evol
We applied the two‐stage, AI‐based TOFSI approach to test automatic pollen recognition with fossil pollen samples. The algorithm performs very well for all major pollen types and other non‐pollen object classes, suggesting that such tools have the potential to substantially increase the efficiency of pollen analysis.
Theuerkauf M, Gillert A.
europepmc   +2 more sources

Comparative Analysis of Fire and Explosion Properties of Lycopodium Powder

open access: yesEnergies, 2023
Lycopodium (L.) clavatum powder, due to its uniform particle size distribution and low equilibrium moisture content, is often used as a reference material and a calibration benchmark for dust combustion and dust explosion studies.
Bożena Kukfisz   +4 more
doaj   +1 more source

Leaf Damage is Not the Answer! Reduced Herbivore Pressure Does Not Underpin Either Downhill or Uphill Range Shifts. [PDF]

open access: yesEcol Evol
While many plant species are shifting their ranges uphill in response to climate change, a substantial portion of species have exhibited a downhill shift, opposite to the expected response under climate change. We tested the hypothesis that these counterintuitive range shifts may be driven by a reduction in enemy (herbivores and pathogens) pressure ...
Osmolovsky I   +4 more
europepmc   +2 more sources

Lycopodium Attenuates Loss of Dopaminergic Neurons by Suppressing Oxidative Stress and Neuroinflammation in a Rat Model of Parkinson’s Disease

open access: yesMolecules, 2019
Parkinson’s disease, a chronic, age related neurodegenerative disorder, is characterized by a progressive loss of nigrostriatal dopaminergic neurons.
Richard L. Jayaraj   +6 more
doaj   +1 more source

Strategies and Efforts towards the Total Synthesis of Palhinine Alkaloids

open access: yesMolecules, 2020
The palhinine family of Lycopodium alkaloids were first reported in 2010, which feature an intriguing isotwistane carbon cage and a nine-membered azonane ring.
Yu-Yan Liang   +3 more
doaj   +1 more source

Lycoplanines B-D, Three Lycopodium Alkaloids from Lycopodium complanatum

open access: yesNatural Products and Bioprospecting, 2018
A novel C17N Lycopodium alkaloid (LA), lycoplanine B (1), containing an unusual formyl group, along with two new LAs, lycoplanines C (2) and D (3), were isolated from the whole plant of Lycopodium complanatum.
Zhi-Jun Zhang   +4 more
doaj   +1 more source

Mathematical Modeling of Non-Premixed Laminar Flow Flames Fed with Biofuel in Counter-Flow Arrangement Considering Porosity and Thermophoresis Effects: An Asymptotic Approach

open access: yesEnergies, 2018
Due to the safe operation and stability of non-premixed combustion, it can widely be utilized in different engineering power and medical systems. The current paper suggests a mathematical asymptotic technique to describe non-premixed laminar flow flames ...
Mehdi Bidabadi   +4 more
doaj   +1 more source

Comprehensive relative quantitative metabolomics analysis of lycopodium alkaloids in different tissues of Huperzia serrata

open access: yesSynthetic and Systems Biotechnology, 2018
Qian ceng Ta, the whole plant of Huperzia serrata, is an important landscape and medicinal herbs and contains abundant bioactive lycopodium alkaloids. Although the structures of more than 100 lycopodium alkaloids in Huperzia serrata have been isolated ...
Shiwen Wu, Zhen Fan, Youli Xiao
doaj   +1 more source

RATTUS NORVEGICUS INFECTADOS COM TRYPANOSOMA CRUZI: EFEITOS CLÍNICOS DO TRATAMENTO COM LYCOPODIUM CLAVATUN E PHOSPHORUS ULTRADILUÍDOS

open access: yesArquivos de Ciências da Saúde da UNIPAR, 2023
A doença de Chagas causada pelo parasita Trypanosoma cruzi acomete milhões de pessoas no mundo e não conta com um medicamento de ação efetiva para o seu tratamento etiológico.
Paula Fernanda Massini   +1 more
doaj   +1 more source

Shared body plans of lycophytes inferred from root formation of Lycopodium clavatum

open access: yesFrontiers in Ecology and Evolution, 2022
Late Silurian to early Devonian lycophytes had prostrate aerial axes, while subordinate organs or subterranean axes were formed around the dichotomies of the axes. The subterranean axes are hypothesized to have evolved into root-bearing axes (rhizophores)
Yuki Ito   +3 more
doaj   +1 more source

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