| 1. |
- Settele, Josef, et al.
(författare)
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Rice ecosystem services in South-east Asia
- 2018
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Ingår i: Paddy and Water Environment. - : Springer. - 1611-2490 .- 1611-2504. ; 16:2, s. 211-224
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 2. |
- Johanson, Kjell Arne, 1966-, et al.
(författare)
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Annotated catalog of Vietnamese Trichoptera (Insecta)
- 2023
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Ingår i: Opuscula Zoologica Instituti Zoosystematici et Oecologici Universitatis Budapestinensis. - 0237-5419 .- 2063-1588. ; 54:Supplementum 1, s. 1-160
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Tidskriftsartikel (refereegranskat)abstract
- All 835 valid species of caddisflies recorded from Vietnam by the end of 2021 are cataloged. The catalog is annotated with information about reference to original description where the species was described, type locality, depository institution of the type material, habitat where the species has been collected, and distribution. The distribution section covers all countries as well as Vietnamese provinces from where species has been recorded. The catalog is based on records of about 7,600 individuals recorded in literature, of which 69 % of the individuals are males and 31 % are females. With 139 species recorded, the most species rich family in Vietnam is the Hydropsychidae, followed by the Philopotamidae, Leptoceridae and the Hydroptilidae. These four families comprise 50% of the species diversity of caddisflies in Vietnam. By number of species, the smallest families are the Phryganopsychidae and Brachycentridae (two species each) and the Sericostomatidae, Phryganeidae and Limnocentropodidae that are represented by only one species each.
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| 3. |
- Johanson, Kjell Arne, 1966-, et al.
(författare)
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Description of six new species of Oecetis (Trichoptera, Leptoceridae) from Vietnam
- 2020
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Ingår i: Zootaxa. - 1175-5326 .- 1175-5334. ; 4816:3, s. 311-324
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Tidskriftsartikel (refereegranskat)abstract
- The following six new Oecetis species have been described and illustrated: O. lata, O. gretae, O. malickyi, O. porntipae, O. olahi, and O. hageni. The following three Oecetis species are recorded for the first time from Vietnam: O. maron Malicky & Chantaramongkol 2005 (in Malicky 2005), O. iakchos Malicky 2005, and O. jachin Malicky & Mey 2010 (in Malicky 2010a). We present new records of the following six Oecetis species that are previously known from Vietnam: O. raghava Schmid 1995, O. biramosa Martynov 1936, O. tripunctata (Fabricius 1793), O. meleagros Malicky & Thani 2005, O. asmada Malicky 1979, and O. empusa Malicky & Chaibu 2000. A map presents the distribution of the Oecetis species included in this report.
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| 4. |
- Li, You, et al.
(författare)
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Preinvasion Assessment of Exotic Bark Beetle-Vectored Fungi to Detect Tree-Killing Pathogens
- 2022
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Ingår i: Phytopathology. - 0031-949X. ; 112:2, s. 261-270
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Tidskriftsartikel (refereegranskat)abstract
- Exotic diseases and pests of trees have caused continental-scale disturbances in forest ecosystems and industries, and their invasions are considered largely unpredictable. We tested the concept of preinvasion assessment of not yet invasive organisms, which enables empirical risk assessment of potential invasion and impact. Our example assesses fungi associated with Old World bark and ambrosia beetles and their potential to impact North American trees. We selected 55 Asian and European scolytine beetle species using host use, economic, and regulatory criteria. We isolated 111 of their most consistent fungal associates and tested their effect on four important southeastern American pine and oak species. Our test dataset found no highly virulent pathogens that should be classified as an imminent threat. Twenty-two fungal species were minor pathogens, which may require context-dependent response for their vectors at North American borders, while most of the tested fungi displayed no significant impact. Our results are significant in three ways; they ease the concerns over multiple overseas fungus vectors suspected of heightened potential risk, they provide a basis for the focus on the prevention of introduction and establishment of species that may be of consequence, and they demonstrate that preinvasion assessment, if scaled up, can support practical risk assessment of exotic pathogens.
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| 5. |
- Nguyet, To Thi, et al.
(författare)
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Enhanced response characteristics of NO2 gas sensor based on ultrathin SnS2 nanoplates : Experimental and DFT study
- 2024
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Ingår i: Sensors and Actuators A-Physical. - : Elsevier. - 0924-4247 .- 1873-3069. ; 373
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Tidskriftsartikel (refereegranskat)abstract
- Layered-metal dichalcogenides with extraordinary characteristics of vast surface area, tunable bandgap and superior adsorption capability enable the potential for application in gas sensors. However, the synthesis of effective material for enhanced response performance remains a challenge. Herein, we exploited a fascinating sensitivity and selectivity towards NO2 gas detection using SnS2 nanoflakes prepared via the hydrothermal method. SnS2 nanoflakes with a thickness of 25 nm and an average diameter of approximately 500 nm show the potential for the detection of NO2 gas at low concentrations of ppb levels. The sensing properties of the SnS2 sensors were investigated for different concentrations of NO2 at various operating temperatures. The sensor exhibits the highest gas-sensing response of 161 at 250 οC upon exposure to 5 ppm of NO2 gas with fast response and recovery times. In addition, the sensor shows excellent selectivity with a low detection limit of ppb level. The electronic structure and gas-sensing mechanism are elucidated via finding density of states, charge density, and band structure based on DFT study which is calculated by the Vienna ab-initio simulation package (VASP). The considerable small adsorption energy reveals a physisorption of the NO2 molecules on the SnS2 surface (-0.174 eV), indicating the SnS2 nanoflakes are intriguing candidates for the speedy detection of NO2 gas.
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