Wave–particle duality quantified for the first time

Physics World ◽  
2021 ◽  
Vol 34 (10) ◽  
pp. 6i-6i
Author(s):  
Karmela Padavic-Callaghan
Keyword(s):  
South Korea ◽  
Wave Particle Duality ◽  
First Time ◽  
Photon Source

Scientists in South Korea have used a precisely controlled photon source to measure a photon’s degree of “waveness” and “particle-ness”.

New and noteworthy lichen-forming and lichenicolous fungi 10

2020 ◽  
Vol 62 (1-2) ◽  
pp. 69-108
Author(s):  
S. Y. Kondratyuk ◽  
D. K. Upreti ◽  
G. K. Mishra ◽  
S. Nayaka ◽  
K. K. Ingle ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
South Korea ◽  
Eastern Europe ◽  
South Asia ◽  
New Combinations ◽  
Eastern Asia ◽  
Forest Zone ◽  
Mediterranean Europe ◽  
First Time ◽  
India And China

Eight species, new for science, i.e.: Lobothallia gangwondoana S. Y. Kondr., J.-J. Woo et J.-S. Hur and Phyllopsora dodongensis S. Y. Kondr. et J.-S. Hur from South Korea, Eastern Asia, Ioplaca rinodinoides S. Y. Kondr., K. K. Ingle, D. K. Upreti et S. Nayaka, Letrouitia assamana S. Y. Kondr., G. K. Mishra et D. K. Upreti, and Rusavskia indochinensis S. Y. Kondr., D. K. Upreti et S. Nayaka from India and China, South Asia, Caloplaca orloviana S. Y. Kondr. and Rusavskia drevlyanica S. Y. Kondr. et O. O. Orlov from Ukraine, Eastern Europe, as well as Xanthoria ibizaensis S. Y. Kondr. et A. S. Kondr. from Ibiza Island, Spain, Mediterranean Europe, are described, illustrated and compared with closely related taxa. Fominiella tenerifensis S. Y. Kondr., Kärnefelt, A. Thell et Feuerer is for the first time recorded from Mediterranean Europe, Huriella loekoesiana S. Y. Kondr. et Upreti is provided from Russia for the first time, and H. pohangensis S. Y. Kondr., L. Lőkös et J.-S. Hur for the first time from China, Phoma candelariellae Z. Kocakaya et Halıcı is new to Ukraine, and Staurothele frustulenta Vain. is recorded from the Forest Zone of Ukraine for the first time. Twelve new combinations, i.e.: Bryostigma apotheciorum (for Sphaeria apotheciorum A. Massal.), Bryostigma biatoricola (for Arthonia biatoricola Ihlen et Owe-Larss.), Bryostigma dokdoense (for Arthonia dokdoensis S. Y. Kondr., L. Lőkös, B. G. Lee, J.-J. Woo et J.-S. Hur), Bryostigma epiphyscium (for Arthonia epiphyscia Nyl.), Bryostigma lobariellae (for Arthonia lobariellae Etayo), Bryostigma lapidicola (for Lecidea lapidicola Taylor), Bryostigma molendoi (for Tichothecium molendoi Heufl. ex Arnold), Bryostigma neglectulum (for Arthonia neglectula Nyl.), Bryostigma parietinarium (for Arthonia parietinaria Hafellner et Fleischhacker), Bryostigma peltigerinum (for Arthonia vagans var. peltigerina Almq.), Bryostigma phaeophysciae (for Arthonia phaeophysciae Grube et Matzer), Bryostigma stereocaulinum (for Arthonia nephromiaria var. stereocaulina Ohlert), are proposed based on results of combined phylogenetic analysis based on mtSSU and RPB2 gene sequences. Thirty-one new combinations for members of the genus Polyozosia (i.e.: Polyozosia actophila (for Lecanora actophila Wedd.), Polyozosia agardhiana (for Lecanora agardhiana Ach.), Polyozosia altunica (for Myriolecis altunica R. Mamut et A. Abbas), Polyozosia antiqua (for Lecanora antiqua J. R. Laundon), Polyozosia bandolensis (for Lecanora bandolensis B. de Lesd.), Polyozosia behringii (for Lecanora behringii Nyl.), Polyozosia caesioalutacea (for Lecanora caesioalutacea H. Magn.), Polyozosia carlottiana (for Lecanora carlottiana C. J. Lewis et Śliwa), Polyozosia congesta (for Lecanora congesta Clauzade et Vězda), Polyozosia eurycarpa (for Lecanora eurycarpa Poelt, Leuckert et Cl. Roux), Polyozosia expectans (Lecanora expectans Darb.), Polyozosia flowersiana (Lecanora flowersiana H. Magn.), Polyozosia fugiens (for Lecanora fugiens Nyl.), Polyozosia invadens (for Lecanora invadens H. Magn.), Polyozosia juniperina (for Lecanora juniperina Śliwa), Polyozosia latzelii (for Lecanora latzelii Zahlbr.), Polyozosia liguriensis (for Lecanora liguriensis B. de Lesd.), Polyozosia massei (for Myriolecis massei M. Bertrand et J.-Y. Monnat), Polyozosia mons-nivis (for Lecanora mons-nivis Darb.), Polyozosia oyensis (for Lecanora oyensis M.-P. Bertrand et Cl. Roux), Polyozosia percrenata (for Lecanora percrenata H. Magn.), Polyozosia persimilis (for Lecanora hagenii subsp. persimilis Th. Fr.), Polyozosia poeltiana (for Lecanora poeltiana Clauzade et Cl. Roux), Polyozosia prominens (for Lecanora prominens Clauzade et Vězda), Polyozosia prophetae-eliae (for Lecanora prophetae-eliae Sipman), Polyozosia salina (for Lecanora salina H. Magn.), Polyozosia schofieldii (for Lecanora schofieldii Brodo), Polyozosia sverdrupiana (for Lecanora sverdrupiana Øvstedal), Polyozosia torrida (for Lecanora torrida Vain.), Polyozosia wetmorei (for Lecanora wetmorei Śliwa), Polyozosia zosterae (for Lecanora subfusca? zosterae Ach.)) are proposed.

scholarly journals Evaluation of the Variability of the ORF34, ORF68, and MLST Genes in EHV-1 from South Korea

Pathogens ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 425
Author(s):  
Hyung-Woo Kang ◽  
Eun-Yong Lee ◽  
Kyoung-Ki Lee ◽  
Mi-Kyeong Ko ◽  
Ji-Young Park ◽  
...  
Keyword(s):  
Nucleotide Sequence ◽  
South Korea ◽  
Molecular Level ◽  
Economic Losses ◽  
Equine Herpesvirus ◽  
Equine Herpesvirus 1 ◽  
Mlst Analysis ◽  
Herpesvirus 1 ◽  
First Time ◽  
Group 1

Equine herpesvirus-1 (EHV-1) is an important pathogen in horses. It affects horses worldwide and causes substantial economic losses. In this study, for the first time, we characterized EHV-1 isolates from South Korea at the molecular level. We then aimed to determine the genetic divergences of these isolates by comparing them to sequences in databases. In total, 338 horse samples were collected, and 12 EHV-1 were isolated. We performed ORF30, ORF33, ORF68, and ORF34 genetic analysis and carried out multi-locus sequence typing (MLST) of 12 isolated EHV-1. All isolated viruses were confirmed as non-neuropathogenic type, showing N752 of ORF30 and highly conserved ORF33 (99.7–100%). Isolates were unclassified using ORF68 analysis because of a 118 bp deletion in nucleotide sequence 701–818. Seven EHV-1 isolates (16Q4, 19R166-1, 19R166-6, 19/10/15-2, 19/10/15-4, 19/10/18-2, 19/10/22-1) belonged to group 1, clade 10, based on ORF34 and MLST analysis. The remaining 5 EHV-1 isolates (15Q25-1, 15D59, 16Q5, 16Q40, 18D99) belonged to group 7, clade 6, based on ORF34 and MLST analysis.

Girardinia diversifolia (Link) Friis subsp. suborbiculata (C. J. Chen) C. J. Chen & Friis (Urticaceae): A New Record for India

2016 ◽  
Vol 39 (2) ◽  
pp. 151-153
Author(s):  
Kumar Ambrish ◽  
S. Srivastava
Keyword(s):  
South Korea ◽  
New Record ◽  
Garhwal Region ◽  
First Time

Girardinia diversifolia (Link) Friis subsp. suborbiculata (C.J. Chen) C. J. Chen & Friis, so far known from China and South Korea is reported for the first time from Garhwal region, Uttarakhand, as a new record to Indian flora.

Implementing the London Dumping Convention in East Asia

2017 ◽  
Vol 2 (2) ◽  
pp. 247-267 ◽  
Author(s):  
Keyuan Zou ◽  
Lei Zhang
Keyword(s):  
South Korea ◽  
East Asia ◽  
Carbon Storage ◽  
Marine Pollution ◽  
East Asian ◽  
The Philippines ◽  
New Challenges ◽  
The Republic ◽  
London Protocol ◽  
First Time

In 1972, the Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter (London Convention) was negotiated. It is a global treaty, for the first time, to regulate dumping of waste at sea worldwide. Following this global endeavor, the Protocol to the London Convention (London Protocol) was later agreed to further modernize the London Convention so as to reinforce the management of dumping of waste at sea. While in East Asia, only China, Japan, the Republic of Korea (South Korea) and the Philippines have acceded to the Convention and its Protocol, other countries do not show their willingness to sign them. Against this background, this article will address the responses of these East Asian states to the implementation of the London Convention, and analyze and assess their relevant laws and regulations with particular reference to China’s practice. In addition, it will focus on new challenges, such as offshore carbon storage, to the London Convention.

scholarly journals Big and beautiful: the Megaxyela species (Hymenoptera, Xyelidae) of East Asia and North America

2017 ◽  
Author(s):  
Stephan M. Blank ◽  
Katja Kramp ◽  
David R. Smith ◽  
Yuri N. Sundikov ◽  
Meicai Wei ◽  
...  
Keyword(s):  
North America ◽  
West Virginia ◽  
South Korea ◽  
East Asia ◽  
Morphological Characters ◽  
Old World ◽  
Eastern Usa ◽  
The Usa ◽  
Coi Sequences ◽  
First Time

Megaxyela Ashmead, 1898 comprises 13 species, four of which are described as new and one is removed from synonymy: Megaxyela euchroma Blank, Shinohara & Wei sp. nov. from China (Zheijang), M. fulvago Blank, Shinohara & Wei sp. nov. from China (Hunan, Jiangsu, Zhejiang), M. inversa Blank & D.R. Smith sp. nov. from the USA (West Virginia), M. langstoni Ross, 1936 sp. rev. from the eastern USA, and M. pulchra Blank, Shinohara & Sundukov sp. nov. from China (Hubei, Jilin, Liaoning, Shaanxi, Tibet), South Korea (Kangwon-do) and Russia (Primorskiy Kray). The male of M. parki Shinohara, 1992 is described for the first time. A lectotype is designated for M. gigantea Mocsáry, 1909. A cladogram, based on COI sequences of seven species, is presented and interpreted in view of selected morphological characters. Records of M. fulvago sp. nov. from Hunan and of M. pulchra sp. nov. from Tibet extend the known distribution of Megaxyela in the Old World 600 kilometers farther south and 2500 kilometers farther west than previous records.

A checklist of freshwater algae from Mt. Sinbul alpine wetlands in South Korea

Nova Hedwigia ◽  
2020 ◽  
Vol 111 (1) ◽  
pp. 1-38
Author(s):  
Han Soon Kim ◽  
Jae Hak Lee ◽  
Jin Hee Kim
Keyword(s):  
South Korea ◽  
New Taxa ◽  
Late Spring ◽  
Freshwater Algae ◽  
Algal Communities ◽  
Species Numbers ◽  
Algal Diversity ◽  
Number Of Species ◽  
Algal Groups ◽  
First Time

The present study summarized the freshwater algal diversity from Mt. Sinbul alpine wetlands in South Korea from March 2013 to December 2019. We identified a total of 183 taxa belong to seven main algal groups (Charophyta, Chlorophyta, Cyanophyta, Chrysophyta, Cryptophyta, Dinophyta and Euglenophyta). The algal communities were characterized by high species numbers of the desmids making up 108 taxa. It was examined that the number of species was higher during late spring and summer. Among them, a total of 53 taxa of 40 desmid species (Charophyta) including 4 new taxa (Actinotaenium crassiusculum var. minutum var. nov., Cosmarium vitiosum var. koreanum var. nov., Groenbladia neglecta var. longa var. nov., Staurodesmus koreanus sp. nov.), 5 species of Chlorophyta, 7 species of Chrysophyta and 1 species of Cyanophyta have been recorded for the first time in Korea.

A new species of the genus Mawenzhena Alexis & Delpont (Coleoptera: Scarabaeidae: Cetoniinae: Goliathini) from South Korea

Zootaxa ◽  
2019 ◽  
Vol 4671 (2) ◽  
pp. 277-282
Author(s):  
JIHOON KIM ◽  
SUNGHOON JUNG
Keyword(s):  
New Species ◽  
South Korea ◽  
Korean Peninsula ◽  
Male Genitalia ◽  
Species Diagnosis ◽  
First Time ◽  
A New Species

Genus, Mawenzhena Alexis & Delpont (Coleoptera: Scarabaeidae: Cetoniinae: Goliathini), is reported from Korean Peninsula for the first time with the description of a new species, Mawenzhena Koreana J.H. Kim & Jung, sp. nov. Description of the new species, diagnosis for the members of the genus and a key to the Korean genera of the subtribe Coryphocerina are provided together with photographs of adult specimens and male genitalia. 

scholarly journals Direct counterfactual communication via quantum Zeno effect

2017 ◽  
Vol 114 (19) ◽  
pp. 4920-4924 ◽  
Author(s):  
Yuan Cao ◽  
Yu-Huai Li ◽  
Zhu Cao ◽  
Juan Yin ◽  
Yu-Ao Chen ◽  
...  
Keyword(s):  
Wave Function ◽  
Quantum Mechanics ◽  
Theoretical Study ◽  
Single Photon ◽  
Single Photon Source ◽  
Quantum Zeno Effect ◽  
Channel One ◽  
Zeno Effect ◽  
Wave Particle Duality ◽  
Photon Source

Intuition from our everyday lives gives rise to the belief that information exchanged between remote parties is carried by physical particles. Surprisingly, in a recent theoretical study [Salih H, Li ZH, Al-Amri M, Zubairy MS (2013) Phys Rev Lett 110:170502], quantum mechanics was found to allow for communication, even without the actual transmission of physical particles. From the viewpoint of communication, this mystery stems from a (nonintuitive) fundamental concept in quantum mechanics—wave-particle duality. All particles can be described fully by wave functions. To determine whether light appears in a channel, one refers to the amplitude of its wave function. However, in counterfactual communication, information is carried by the phase part of the wave function. Using a single-photon source, we experimentally demonstrate the counterfactual communication and successfully transfer a monochrome bitmap from one location to another by using a nested version of the quantum Zeno effect.

scholarly journals COVID-19 and Telework: An International Comparison

2021 ◽  
Vol 1 ◽  
Author(s):  
Hiroshi Ono ◽  
Takeshi Mori
Keyword(s):  
Life Satisfaction ◽  
South Korea ◽  
International Comparison ◽  
High Income ◽  
Large Firms ◽  
Socioeconomic Groups ◽  
Work Related ◽  
First Time

This paper uses identical surveys conducted in July 2020 in eight countries – U.S., U.K., Germany, Italy, Sweden, China, South Korea, and Japan – and examines teleworking within and across these eight countries. We seek to answer the following questions: (1) Which demographic and socioeconomic groups are more likely to telework? (2) Is there any association between telework and other work-related experiences such as life satisfaction and perceived productivity at work? Across countries, we observe that teleworking was higher in countries that imposed strict lockdowns, such as China, and lower in countries that had soft lockdowns, such as Japan. Within each country, there are notable differences in teleworking between low- and high-income persons, and between those employed in small versus large firms. We also find that people who used telework before COVID-19 report higher life satisfaction compared to those who started using telework for the first time after the COVID-19 outbreak.

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