Publications by authors named "YanDa Li"

Article Synopsis
  • Tenebrionoids are found in late Mesozoic ambers, but their diversity is not well-studied due to unclear family classifications.
  • Researchers describe a new tenebrionoid beetle from mid-Cretaceous Kachin amber, highlighting its unique pronotal sulcus and tarsi.
  • This beetle is tentatively classified in the Pythidae family, marking it as the first fossil from this family discovered in the Mesozoic era.
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Three new species of plate-thigh beetles are described and figured from mid-Cretaceous Kachin amber, all representing the extant genus Eucinetus Germar. The species, Eucinetus debilispinus Li & Cai sp. nov.

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Coccinelloid beetles have a sparse fossil record in the Mesozoic. Here, we describe and illustrate an unusual coccinelloid beetle, gen. et sp.

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The beetle superfamily Elateroidea comprises the most biodiverse bioluminescent insects among terrestrial light-producing animals. Recent exceptional fossils from the Mesozoic era and phylogenomic studies have provided valuable insights into the origin and evolution of bioluminescence in elateroids. However, due to the fragmentary nature of the fossil record, the early evolution of bioluminescence in fireflies (Lampyridae), one of the most charismatic lineages of insects, remains elusive.

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Article Synopsis
  • Researchers developed a new catalytic membrane, M-NNCO-THFM, by coating a metal-organic framework (MOF) precursor on a titanium hollow fiber membrane and heating it, to improve water treatment using peroxymonosulfate (PMS).
  • The M-NNCO-THFM process effectively removed phenol from water through a non-radical pathway involving singlet oxygen and electron transfer, showing strong stability across various pH levels and in complex water environments.
  • Mechanistic studies showed that the MOF structure enhanced electron transfer efficiency, improving charge transfer and lowering resistance, which contributed to the membrane's better overall catalytic performance compared to traditional membrane approaches.
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Beetles have a remote evolutionary history dating back to the Carboniferous, with Mesozoic fossils playing a pivotal role in elucidating the early evolution of extant families. Despite their exceptional preservation in amber, deciphering the systematic positions of Mesozoic trogossitid-like beetles remains challenging. Here, we describe and illustrate a new trogossitid-like lineage from mid-Cretaceous Kachin amber, Li, Kolibáč, Liu & Cai, gen.

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A new species of the extant staphylinid genus Moore & Legner, sp. nov., is reported from mid-Cretaceous Kachin amber of northern Myanmar.

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Article Synopsis
  • Researchers discovered new fossil species (Palaeosymbius groehni and P. mesozoicus) from mid-Cretaceous amber in Myanmar and studied their evolutionary relationships with existing coccinellid groups, particularly within the Anamorphidae family.
  • A thorough analysis was conducted using data from 34 taxa, encompassing a wide range of morphological traits and molecular sequences, with new insights from five anamorphid and one endomychid species sequenced for the first time.
  • Findings confirmed that Palaeosymbius is the oldest known member of Anamorphidae; it was found to be closely related to the living genus Symbiotes, and the study also noted the first instance
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The morphology of beetles of the recently defined superfamilies Erotyloidea, Nitiduloidea and Cucujoidea is varied. Determining the systematic positions of Mesozoic fossils within these groups can often be challenging. Here we describe and illustrate a puzzling cucujiform beetle, Li & Cai , based on an individual from mid-Cretaceous Burmese amber.

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The second species of the extinct genus Burmalestes Tomaszewska & lipiski, B. jingruoyaae Li & Cai sp. nov.

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Weevils represent one of the most prolific radiations of beetles and the most diverse group of herbivores on land. The phylogeny of weevils (Curculionoidea) has received extensive attention, and a largely satisfactory framework for their interfamilial relationships has been established. However, a recent phylogenomic study of Curculionoidea based on anchored hybrid enrichment (AHE) data yielded an abnormal placement for the family Belidae (strongly supported as sister to Nemonychidae + Anthribidae).

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Ptiliidae (featherwing beetles) is a group of minute staphylinoid beetles with a scarce fossil record. Here a second member of the Mesozoic genus Yamamoto et al. is reported from mid-Cretaceous Burmese amber, with detailed morphology obtained through confocal microscopy.

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Discovering DNA regulatory sequence motifs and their relative positions is vital to understanding the mechanisms of gene expression regulation. Although deep convolutional neural networks (CNNs) have achieved great success in predicting cis-regulatory elements, the discovery of motifs and their combinatorial patterns from these CNN models has remained difficult. We show that the main difficulty is due to the problem of multifaceted neurons which respond to multiple types of sequence patterns.

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Hit network-target sets (HNSs), compiled sets of different network nodes of the same type, are available and play a significant role in cancer development but are notoriously more difficult to select than a single target. This is due to a combination of challenges attributed to the differential of node interactions, node heterogeneity, and the limitations of node-hit information. In this study, we constructed a lung adenocarcinoma regulatory network using TCGA data and obtained different HNSs of driver nodes (DNs), core modules (CMs) and core nodes (CNs) through three kinds of methods.

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To investigate the effect of dimensional changes on the mechanical properties of cemented tailings backfill (CTB), uniaxial compression tests are performed on square CTBs of four different sizes. Combining digital image correlation (DIC) and acoustic emission (AE) methods, the fracture process and AE behavior characteristics of backfills with different sizes are analyzed. The results show that as the backfill size increases, its uniaxial compressive strength decreases, and its strength stabilizes gradually when it measures 100 mm.

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The fossils once assigned to Raractocetus Kurosawa from the Mesozoic and Cenozoic amber deposits differ from extant Raractocetus in the longer elytra, the more strongly projecting metacoxae, and the hind wing with vein 2A forked. Thus, these fossils should be removed from Raractocetus. Cretoquadratus engeli Chen from Kachin amber appears to be conspecific with R.

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Polyoxometalates (POMs), as emerging inorganic metal oxides, have been shown to have significant biological activity and great medicinal value. Nowadays, biologically active POM-based organic-inorganic hybrid materials have become the next generation of antibacterial and anticancer drugs because of their customizable molecular structures related to their highly enhanced antitumor activity and reduced toxicity to healthy cells. In this review, the current developed strategies with POM-based materials for the purpose of antibacterial and anticancer activities from different action principles inducing cell death and hyperpolarization, cell plasma membrane destruction, interference with bacterial respiratory chain and inhibiting bacterial growth are overviewed.

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Two new species of the prostomid genus Vetuprostomis Engel Grimaldi (Coleoptera: Tenebrionoidea: Prostomidae), V. angularis Li Cai sp. nov.

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Artematopodid fossils from the mid-Cretaceous Burmese amber are reported for the first time, represented by three species in two genera. Bipogonia Li, Kundrata Cai gen. nov.

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Article Synopsis
  • Marsh beetles (Scirtidae) are key to understanding the evolutionary history and success of beetles in the suborder Polyphaga, but studying their lineage has been difficult due to limited fossil evidence.
  • A new genus and species, Varcalium lawrencei, has been discovered in 99 million-year-old Kachin amber, offering new insights into their evolutionary path.
  • Phylogenetic analysis shows that Varcalium is part of the Scirtinae crown-group, indicating that this group had begun to diversify as early as the mid-Cretaceous period.
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Ribosomal deoxyribonucleic acid (DNA) (rDNA) repeats are tandemly located on five acrocentric chromosomes with up to hundreds of copies in the human genome. DNA methylation, the most well-studied epigenetic mechanism, has been characterized for most genomic regions across various biological contexts. However, rDNA methylation patterns remain largely unexplored due to the repetitive structure.

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A new fossil genus and species of Cantharidae, Li, Biffi, Kundrata & Cai , is reported from mid-Cretaceous Burmese amber. The new species is tentatively attributed to the extant subfamily Malthininae based on a combination of characters, including the symmetrical apical maxillary palpomeres, shortened elytra, pronotum with arched margins and well-defined borders, tibiae with apical spurs, and tarsal claws simple, although its well-developed gonostyli are atypical in Malthininae. The discovery of also suggests a possible Gondwanan origin for Malthininae.

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