The Late Ordovician – Middle Devonian Gaspé Belt in eastern Canada — recent advances

2004 ◽  
Vol 41 (5) ◽  
pp. 483-487 ◽  
Author(s):  
Denis Lavoie ◽  
Michel Malo ◽  
Alain Tremblay
Keyword(s):  
Continental Margin ◽  
Middle Devonian ◽  
Late Ordovician ◽  
Research Progress ◽  
Special Issue ◽  
Eastern Canada ◽  
Recent Research Progress ◽  
Research Endeavour ◽  
Mapping Program ◽  
Organization Research

The Appalachian Forelands and Platform NATMAP (National Geoscience Mapping Program) project in eastern Canada is a multi-discipline and multi-organization research endeavour aimed at the understanding of the evolution and architecture of the ancient continental margin of Laurentia. This Canadian Journal of Earth Sciences Special Issue presents some recent research progress for our knowledge of the Silurian–Devonian Gaspé Belt of that ancient margin.

The Cambrian–Ordovician successions along the ancient continental margin of Laurentia — recent advances

2003 ◽  
Vol 40 (2) ◽  
pp. 131-133 ◽  
Author(s):  
Denis Lavoie ◽  
Michel Malo ◽  
Alain Tremblay
Keyword(s):  
Earth Sciences ◽  
Canadian Journal ◽  
Continental Margin ◽  
Research Progress ◽  
Special Issue ◽  
Eastern Canada ◽  
Recent Advances ◽  
Recent Research Progress ◽  
Research Endeavour ◽  
Organization Research

The Appalachian Forelands and Platform NATMAP project in eastern Canada is a multi-discipline and multi-organization research endeavour aimed at the understanding of the evolution and architecture of the ancient continental margin of Laurentia. The Canadian Journal of Earth Sciences special issue presents some recent research progress for our knowledge of the Cambrian–Ordovician segment of that ancient margin.

scholarly journals Forensic Entomology in China and Its Challenges

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 230
Author(s):  
Yu Wang ◽  
Yinghui Wang ◽  
Man Wang ◽  
Wang Xu ◽  
Yanan Zhang ◽  
...  
Keyword(s):  
Species Identification ◽  
Forensic Entomology ◽  
Research Progress ◽  
Temperature Dependent ◽  
Related Research ◽  
Dependent Development ◽  
Faunal Succession ◽  
Recent Research Progress

While the earliest record of forensic entomology originated in China, related research did not start in China until the 1990s. In this paper, we review the recent research progress on the species identification, temperature-dependent development, faunal succession, and entomological toxicology of sarcosaprophagous insects as well as common applications of forensic entomology in China. Furthermore, the difficulties and challenges forensic entomologists face in China are analyzed and possible countermeasures are presented.

Bioapplications of hyperbranched polymers

2015 ◽  
Vol 44 (12) ◽  
pp. 4023-4071 ◽  
Author(s):  
Dali Wang ◽  
Tianyu Zhao ◽  
Xinyuan Zhu ◽  
Deyue Yan ◽  
Wenxin Wang
Keyword(s):  
Biomedical Applications ◽  
Hyperbranched Polymers ◽  
Research Progress ◽  
Recent Research Progress

The recent research progress in biological and biomedical applications of hyperbranched polymers has been summarized in this review.

Failed predation in Late Ordovician gastropods (Mollusca) from Manitoulin Island, Ontario, CanadaThis article is one of a selection of papers published in this Special Issue on the theme The dynamic reef and shelly communities of the Paleozoic. This Special is in honour of our colleague and friend Paul Copper.

2008 ◽  
Vol 45 (2) ◽  
pp. 231-241 ◽  
Author(s):  
Jan Ove R. Ebbestad ◽  
Christopher A. Stott
Keyword(s):  
Success Rate ◽  
Late Ordovician ◽  
Size Class ◽  
Low Energy ◽  
Special Issue ◽  
Georgian Bay ◽  
Low Level ◽  
Shell Repair ◽  
Number Of Individuals ◽  
Selection Of

Shell repairs resulting from presumed failed predation are documented in gastropods from the Late Ordovician (Cincinnatian; Richmondian) mid-to-upper Kagawong Submember of the Georgian Bay Formation on Manitoulin Island, Ontario, Canada. The bryozoan–mollusc biota and associated sediments generally suggest nearshore, shallow (<10 m), low energy (lagoonal), and perhaps mesotrophic to eutrophic conditions. Two sample sets from this unit have been studied for shell repair. One of the more commonly applied estimates of shell repair frequencies involves division of the number of individuals with at least one scar by the total number of individuals in the sample (the Individuals with scars method). Using this calculation, 207 specimens of Lophospira trilineata Ulrich and Scofield yielded a shell repair frequency of 4.8%; in 28 specimens of Trochonemella sp. the shell repair frequency was 35.7%. Repairs in Trochonemella occur primarily in the larger size class, suggesting that a size refuge was achieved by this species. Low repair frequencies in L. trilineata suggest predation with a higher success rate or fewer encounters. This study demonstrates that the paradigm of a standardized low level of shell repair in Ordovician and Silurian gastropods is oversimplistic and a range of frequency rates can be expected.

Nucularcidae: a new family of palaeotaxodont Ordovician pelecypods (Mollusca) from North America and Australia

2007 ◽  
Vol 44 (10) ◽  
pp. 1479-1501 ◽  
Author(s):  
John Pojeta Jr. ◽  
Christopher A Stott
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Late Ordovician ◽  
Eastern Canada ◽  
Middle Ordovician ◽  
New Family ◽  
Central Australia ◽  
Northeastern Usa ◽  
Subjective Synonym

The new Ordovician palaeotaxodont family Nucularcidae and the new genus Nucularca are described. Included in Nucularca are four previously described species that have taxodont dentition: N. cingulata (Ulrich) (the type species), N. pectunculoides (Hall), N. lorrainensis (Foerste), and N. gorensis (Foerste). All four species are of Late Ordovician (Cincinnatian Katian) age and occur in eastern Canada and the northeastern USA. Ctenodonta borealis Foerste is regarded as a subjective synonym of Nucularca lorrainensis. No new species names are proposed. The Nucularcidae includes the genera Nucularca and Sthenodonta Pojeta and Gilbert-Tomlinson (1977). Sthenodonta occurs in central Australia in rocks of Middle Ordovician (Darriwilian) age. The 12 family group names previously proposed for Ordovician palaeotaxodonts having taxodont dentition are reviewed and evaluated in the Appendix.

scholarly journals Supramolecular aggregates as sensory ensembles

2016 ◽  
Vol 52 (88) ◽  
pp. 12929-12939 ◽  
Author(s):  
Qian Wang ◽  
Zhao Li ◽  
Dan-Dan Tao ◽  
Qian Zhang ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Research Progress ◽  
Supramolecular Aggregates ◽  
Supramolecular Aggregation ◽  
Recent Research Progress

Recent research progress in sensing based on induced supramolecular aggregation or disaggregation.

scholarly journals Recent Research Progress in Solar Thermal Conversion Theory and Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-2 ◽  
Author(s):  
Gang Pei ◽  
Yuehong Su ◽  
Sauro Filippeschi ◽  
Hongfei Zheng
Keyword(s):  
Thermal Conversion ◽  
Solar Thermal ◽  
Research Progress ◽  
Recent Research Progress

Electrochemical polymerization for two-dimensional conjugated polymers

2018 ◽  
Vol 6 (40) ◽  
pp. 10672-10686 ◽  
Author(s):  
Qing Zhang ◽  
Huanli Dong ◽  
Wenping Hu
Keyword(s):  
Conjugated Polymers ◽  
Electrochemical Polymerization ◽  
Research Progress ◽  
Future Research ◽  
Special Focus ◽  
Two Dimensional ◽  
Research Directions ◽  
Potential Applications ◽  
Future Research Directions ◽  
Recent Research Progress

This article places special focus on the recent research progress of the EP method in synthesizing CPs. In particular, their potential applications as 2D CPs are summarized, with a basic introduction of the EP method, its use in synthesizing CPs as well as the promising applications of the obtained CPs in different fields. Discussions of current challenges in this field and future research directions are also given.

scholarly journals Emerging Role of Exosomes in Tuberculosis: From Immunity Regulations to Vaccine and Immunotherapy

2021 ◽  
Vol 12 ◽  
Author(s):  
Yin-Fu Sun ◽  
Jiang Pi ◽  
Jun-Fa Xu
Keyword(s):  
Immune Responses ◽  
Delivery System ◽  
Immune Modulation ◽  
Immune Cell ◽  
Critical Role ◽  
Cell Communication ◽  
Immune Defense ◽  
Research Progress ◽  
Recent Research Progress

Exosomes are cell-derived nanovesicles carrying protein, lipid, and nucleic acid for secreting cells, and act as significant signal transport vectors for cell-cell communication and immune modulation. Immune-cell-derived exosomes have been found to contain molecules involved in immunological pathways, such as MHCII, cytokines, and pathogenic antigens. Tuberculosis (TB), caused by Mycobacterium tuberculosis (MTB), remains one of the most fatal infectious diseases. The pathogen for tuberculosis escapes the immune defense and continues to replicate despite rigorous and complicate host cell mechanisms. The infected-cell-derived exosomes under this circumstance are found to trigger different immune responses, such as inflammation, antigen presentation, and activate subsequent pathways, highlighting the critical role of exosomes in anti-MTB immune response. Additionally, as a novel kind of delivery system, exosomes show potential in developing new vaccination and treatment of tuberculosis. We here summarize recent research progress regarding exosomes in the immune environment during MTB infection, and further discuss the potential of exosomes as delivery system for novel anti-MTB vaccines and therapies.

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