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Article
Two New Stilbenes from the Whole Plant of Arundina graminifolia and Their Anti-SARS-CoV-2 Activity
Two new stilbenes, 5-methoxy-6-(4-methoxystyryl)-3-methylbenzofuran (1) and 5-methoxy-6-(4- hydroxystyryl)-3-methylbenzofuran (2), together with six known ones, bauhiniastatin D (3), gramideoxybenzoin B (4), gram...
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Article
Prenylated Flavonoids from Desmodium caudatum and as Potential Activators for SARS-CoV-2
Two new isoprenylated flavone, 8,4′-dimethoxy-6-(4-methyl-1H-pyrrol-2-yl)-flavone (1), 8-hydroxy-4′-methoxy-6-(4-methyl-1H-pyrrol-2-yl)-flavone (2), together with seven known isoprenylated flavonoids (3–9) were i...
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Article
Two New Stilbenes from the Leaves and Stems of Bletilla striata and Their Anti-SARS-CoV-2 Activity
With the aim of screening more bioactivity metabolites, in this study, two new stilbenes, 5-methoxy-6-(4- methoxystyryl)benzofuran (1) and 6-(4-methoxystyryl)benzofuran-5-ol (2) were isolated from the leaves and ...
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Article
Stilbene Derivatives from Bletilla striata and Their Antiviral Activity
Two new (1 and 2), together with five known (3–7) stilbene derivatives, were isolated from the tubers of Bletilla striata. The structures of these new compounds were elucidated by means of spectroscopic methods, ...
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Article
Bioactive Indole Alkaloids from the Tobacco-Derived Endophytic Fungus Aspergillus fumigatus
Two new indole alkaloids, 1-(5-prenyl-1H-indol-3-yl)propan-2-one (1) and 1-(6-methoxy-5-prenyl-1H-indol-3-yl)propan-2-one (2), along with five known ones (3–7) were isolated from the fermentation products of a ci...
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Article
Two New Chromones from Cassia auriculata and Their Antiviral Activity
Two new chromones, 2-(2-(furan-2-yl)-2-oxoethyl)-6-methoxy-8-(2-oxopropyl)-chromone (1) and 2-(2-(furan-2-yl)-2-oxoethyl)-5-methoxy-8-(2-oxopropyl)-chromone (2), along with four known ones (3–6) were isolated fro...
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Article
Chromone Derivatives from Whole Plants of Chamaecrista rotundifolia and their Antibacterial Activity
In our search for new bioactive metabolites from plants of Cassia genus, the phytochemical investigation on the whole plants of C. rotundifolia was carried out, and that led to the isolation of two new (1 and 2) ...
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Article
Chromones from the Tobacco Derived Fungus Aspergillus versicolor and Their Antiviral Activity
Two new chromones, 8-(3-hydroxypropyl)-2-(3-hydroxy-1-oxopropyl)-6-methoxy-4H-chromen-4-one (1), 2-acetyl-8-(3-hydroxypropyl)-6-methoxy-4H-chromen-4-one (2), along with four known ones (3–6) were isolated from th...
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Article
Open AccessCorrection to: Epidemiology and evolution of Middle East respiratory syndrome coronavirus, 2012–2020
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Article
Two New Antibacterial Anthraquinones from Cultures of an Endophytic Fungus Phomopsis sp.
Two new anthraquinones, 3-hydroxy-6-hydroxymethyl-2,5-dimethylanthraquinone (1) and 6-hydroxymethyl-3-methoxy-2,5-dimethylanthraquinone (2), were isolated from the fermentation products of the endophytic fungus P...
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Article
Open AccessEpidemiology and evolution of Middle East respiratory syndrome coronavirus, 2012–2020
The ongoing transmission of the Middle East respiratory syndrome coronavirus (MERS-CoV) in the Middle East and its expansion to other regions are raising concerns of a potential pandemic. An in-depth analysis ...
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Article
Stilbene Derivatives from the Leaves and Stems of Bletilla striata and their Cytotoxicity and Autophagy Activity
Two new compounds (1 and 2), together with five known (3–7) stilbene derivatives, were isolated from the leaves and stems of Bletilla striata. Their structures were elucidated by spectroscopic methods, including ...
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Article
Chromone Derivatives Of Cassia pumila and their Anti-MRSA Activity
Two new (1 and 2) compounds, together with five known (3–7) chromone derivatives, were isolated from the whole plants of Cassia pumila. Their structures were elucidated by spectroscopic methods, including extensi...
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Article
Open AccessCorrelation of microbiota in the gut of fish species and water
To analyze the intestinal microbiota diversity of several important economic fishes in the Loudi area and its correlation with the microbiota of water environment, the high-throughput sequencing based on the b...
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Article
Two New Anti-Tobacco Mosaic Virus Xanthones from Comastoma Pedunculatum
Two new anti-tobacco mosaic virus (anti-TMV) xanthones, 4,7-dimethoxy-5-hydroxymethyl-1-methylxanthone (1) and 7-hydroxy-5-hydroxymethyl-4-methoxy-1-methylxanthone (2), were isolated from the whole plants of Coma...
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Article
Eigenvalue Statistics for Lattice Hamiltonian with Off-diagonal Disorder
This short note deals with a certain kind of lattice Hamiltonian with off-diagonal disorder. Based on the exponential decay of the fractional moment of the Green function, we are able to prove that the properl...
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Article
On Guided Waves Created by Line Defects
The propagation of guided waves in photonic crystal fibers (PCFs) is studied. A photonic crystal fiber can be regarded as a perfect two-dimensional photonic crystal (PC) with a line defect along the axial dire...
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Chapter and Conference Paper
A Novel Fuzzy Approximator with Fast Terminal Sliding Mode and Its Application
A new learning algorithm for fuzzy system to approximate unknown nonlinear continuous functions is presented. Fast terminal sliding mode combining the finite time convergent property of terminal attractor and ...
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Chapter and Conference Paper
Neural-Network-Based Sliding Mode Control for Missile Electro-Hydraulic Servo Mechanism
A method investigating a Gaussian radial-basis-function neural network (GRBFNN) with sliding mode control (SMC) for missile electro-hydraulic servo mechanism is presented. Since the dynamics of the system are ...
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Chapter and Conference Paper
Variable Universe Adaptive Fuzzy Sliding Mode Controller for a Class of Nonlinear System
Based on integrating the property of sliding mode control (SMC) with the thought of variable universe in adaptive fuzzy control, a design method of variable universe adaptive fuzzy sliding mode control (FSMC) ...
