scholarly journals ESTIMATION OF THE OCCURRENCE TIME OF THE Δ14C PEAK IN AD 775 BASED ON THE OXIDATION TIME OF 14C IN THE ATMOSPHERE AND Δ14C VALUES IN SUBANNUAL TREE RINGS

Radiocarbon ◽  
2020 ◽  
Vol 62 (5) ◽  
pp. 1285-1298
Author(s):  
Junghun Park ◽  
Jeong-Wook Seo ◽  
W Hong ◽  
G Park ◽  
Kilho Sung ◽  
...  
Keyword(s):  
South Korea ◽  
Detailed Analysis ◽  
Tree Rings ◽  
Oxidation Time ◽  
High Latitudes ◽  
Occurrence Time ◽  
Latitude Dependence ◽  
Early Rise ◽  
Comparison Of The Results ◽  
Zelkova Serrata

ABSTRACTThe 14C peak in AD 775 (M12) has been measured and confirmed globally in several studies since it was first measured in annual tree rings by Miyake et al. (2012). However, M12 data measurements in early- and latewood are limited. This paper presents the Δ14C values in early- and latewood from AD 762–776 Zelkova serrata tree rings from Bangu-dong, Ulsan, South Korea (35°33′N, 129°20′E). The results indicate no early rise in Δ14C values in the latewood of AD 774 in this sample located at mid-latitude. A comparison of the results of this and previous studies suggests latitude dependence (Büntgen et al. 2018); that is, the early rise of Δ14C in AD 774 was not observed at mid-latitudes in South Korea but was observed at high latitudes in Finland. The half-oxidation time of 14C was estimated from a detailed analysis of a small bomb peak in AD 1962. Based on the half-oxidation time, the Δ14C rise in the latewood, but not in the earlywood, of AD 774 in Finland, and the absence of a Δ14C rise in both the early- and latewood of AD 774 in South Korea, the 14C spike was estimated to have been produced from late April to mid-June in AD 774.

Tree ring research in the Himalayas – a key resource for extending environmental records into the pre-instrumental period

2021 ◽  
Author(s):  
Nazimul Islam ◽  
Torsten Vennemann ◽  
Stuart N. Lane
Keyword(s):  
Tree Ring ◽  
Tree Rings ◽  
Environmental Changes ◽  
Volcanic Eruptions ◽  
Tibet Plateau ◽  
Lower Latitude ◽  
High Latitudes ◽  
Climate Conditions ◽  
Wide Range ◽  
The Himalaya

<p>Original dendrochronological research has developed rapidly over the last few decades to cover a wide range of environmental reconstruction, not only mean climate conditions but also climate extremes (e.g. floods, droughts) and other environmental hazards (e.g. landslides, debris flows, sea-level rise, volcanic eruptions). Similarly, the focus has expanded its geographical coverage from the temperate and high latitudes to lower latitudes (e.g.  the Himalaya, Tibet Plateau). Analysis of the two main dedicated dendrochronology journals (Dendrochronologia (2002-) and Tree Ring Research (2015-)) shows that the focus of the majority of published papers has been temperate and high latitudes and many fewer have considered lower latitudes such as the Himalaya. This may be due to the long-lasting controversy and doubt of the existence of tree-rings in lower latitude trees and the lower scientific acceptance of seasonal tree growth in such regions. However, such regions have some of the most preferred tree species (e.g. Larix griffithii, Abies spectabilis, Betula utilis, Juniperus polycarpos etc) for dendrochronological analysis making them suitable for tree-ring research and for answering questions regarding century-scale and longer environmental changes in regions with a relatively short history of instrumented recording of environmental parameters.</p><p>Perhaps the most interesting development in tree ring research is the realization that tree cellulose can be used to acquire information not only of climatic significance but also hydrological significance, by using environmental isotopes. To date, despite of being one of the most climate and geopolitically sensitive regions, the Himalaya has got very less or no attention for combined research of isotopes and anatomical analysis of tree rings. Based on its huge significance, it is critical to combine these two methods to allow us to make linkages between historical climate fluctuations and associated hydrological response. In this poster, we present the conception of a project to do this in a large catchment (4264 km<sup>2</sup>) in the Sikkim Himalaya with the purpose to understand how climate change is simultaneously impacting both water-related risks and water-related resources and crucially how far downstream which is highly significant as millions of people living downstream get freshwater from the seasonal snow and glacier-melt in this part of the Himalayas.</p>

Cytogenetic status of blood lymphocytes in schoolchildren living middle and high latitudes

2021 ◽  
Vol 66 (4) ◽  
pp. 213-216
Author(s):  
Victoria Victorovna Pozharskaya
Keyword(s):  
Russian Federation ◽  
Peripheral Blood ◽  
Micronucleus Test ◽  
Peripheral Blood Lymphocytes ◽  
The Arctic ◽  
High Latitudes ◽  
Blood Lymphocytes ◽  
The Russian Federation ◽  
Comparison Of The Results ◽  
The City

Intensive industrial development of the northern regions of the Russian Federation is primarily associated with the extraction and processing of natural resources, which leads to environmental pollution and makes the tasks of sanitary and hygienic monitoring urgent. Rapid methods are convenient for the rapid diagnosis of the genetic well-being of the environment, one of which is the micronucleus test in combination with the cytokinetic block cytochalasin B. mitosis. At the moment, there are scanty data on the inter-latitudinal comparison of the results of cytogenetic studies on cells of various human tissues, which greatly complicates the comparison of the results obtained in the Arctic zone of the Russian Federation with data from more southern regions. The purpose of this study is to identify and compare division abnormalities in cells of peripheral blood lymphocytes in two groups of older schoolchildren living in middle and high latitudes. The study was carried out in the city of Serpukhov, Moscow region (54 ° 54 ‘56 “N, 37 ° 24’ 40” E) and the city of Apatity, Murmansk region (67 ° 34’03 “N, 33 ° 23’36 ″ E). A total of 40 children aged 16-18 were examined - 20 children each from the city of Serpukhov and from the city of Apatity. The micronucleus test was carried out in accordance with the international protocol. Cytogenetic analysis of schoolchildren’s peripheral blood lymphocytes using the micronucleus test showed that the spontaneous number of cells with micronuclei is comparable in middle and high latitudes, and approaches the upper limit of the mean population norm. Therefore, when comparing the data of the micronucleus test on the cells of peripheral blood lymphocytes of the studied groups, it is permissible not to take into account the latitude of residence.

Constitutional Convergence in East Asia

2021 ◽  
Author(s):  
Po Jen Yap ◽  
Chien-Chih Lin
Keyword(s):  
Human Rights ◽  
Hong Kong ◽  
South Korea ◽  
Comparative Study ◽  
Detailed Analysis ◽  
Constitutional Law ◽  
East Asian ◽  
Constitutional Court ◽  
Constitutional Jurisprudence ◽  
Rights Issues

This comparative study of the constitutional jurisprudence of three East Asian jurisdictions investigates how the rulings of the Constitutional Court of Taiwan, the Constitutional Court of Korea and the Hong Kong Court of Final Appeal have converged. The unique political contexts of all three jurisdictions have led to strong courts using the structured proportionality doctrine and innovative constitutional remedies to address human rights issues. Hong Kong, Taiwan, and South Korea have the only courts in Asia that regularly use a structured four-stage Proportionality Analysis to invalidate laws, and routinely apply innovative constitutional remedies such as Suspension Orders and Remedial Interpretation to rectify constitutionally flawed legislation. This volume explores how judges in these areas are affected by politics within their different constitutional systems. The latest developments in Asian constitutional law are covered, with detailed analysis of key cases.

scholarly journals Tree-Ring Dating and AMS Wiggle-Matching of Wooden Statues at Neunggasa Temple in South Korea

Radiocarbon ◽  
2010 ◽  
Vol 52 (3) ◽  
pp. 924-932 ◽  
Author(s):  
Won-Kyu Park ◽  
Yojung Kim ◽  
Ah-Reum Jeong ◽  
Sang-Kyu Kim ◽  
Jung-Ae Oh ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Confidence Interval ◽  
South Korea ◽  
Tree Ring ◽  
Tree Rings ◽  
Accelerator Mass Spectrometry ◽  
Early Spring ◽  
Radiocarbon Date ◽  
Historical Document ◽  
Natural Drying

This paper reports the results of tree-ring dating and accelerator mass spectrometry (AMS) wiggle-matching for wooden Buddhist statues stored at the Eungjindang Hall of Neunggasa Temple, South Korea. Among 23 statues, 10 were successfully dated by tree rings. The cutting date of logs used for the statues was determined as some time between late fall 1684 and early spring 1685 when the bark ring (AD 1684) completed latewood formation. The 95.4% confidence interval of a radiocarbon date (cal AD 1688–1713, 2 σ), which was obtained by wiggle-matching 7 samples of a statue, is similar to the dendro-date (AD 1684). A historical document recorded that the statues in the Eungjindang of Neunggasa were dedicated in July 1685. The dendro-date and written record indicate that Eungjindang statues were made within 3–8 months after log cutting. This seems rather short if we consider the period required for natural drying to avoid defects such as cracking and crooking.

I'm the illest fucka

English Today ◽  
2007 ◽  
Vol 23 (2) ◽  
pp. 54-60 ◽  
Author(s):  
Jamie Shinhee Lee
Keyword(s):  
African American ◽  
South Korea ◽  
Detailed Analysis ◽  
Hip Hop ◽  
American English ◽  
African American English ◽  
Pop Music ◽  
Face To Face ◽  
South Korean ◽  
Tv Commercials

ABSTRACTAn analysis of African American English in South Korean hip hop. English is rarely used in face-to-face terms in South Korea, but the use of English in commerce and entertainment is not such a rarity. The presence of English expressions in advertising and pop lyrics is no longer considered extraordinary. Lee (2006) reports that 83.75% of 720 South Korean TV commercials use some type of English, and only 16.25% of advertisements rely exclusively on Korean. Pop music is another discourse space in which English is fairly frequently used, occurring in more than 50% of pop song titles. A detailed analysis of the frequency of English in South Korean pop music (SK-pop) is reproduced.

TREE-RING DATING OF COFFIN WOODS FROM NAEHEUNG-DONG IN GUNSAN, SOUTH KOREA

IAWA Journal ◽  
2009 ◽  
Vol 30 (4) ◽  
pp. 459-468 ◽  
Author(s):  
Won-Kyu Park ◽  
Kwang-Hee Lee
Keyword(s):  
South Korea ◽  
Tree Ring ◽  
Tree Rings ◽  
Coastal Area ◽  
Pinus Densiflora ◽  
Red Pine ◽  
Japanese Red Pine

The purpose of this study was to date, using tree rings, wooden coffins which were excavated from graves located in Naeheung-dong, Gunsan city, in the western coastal area of South Korea. The species of wood used for the coffins was identified to belong to the diploxylon group of the genus Pinus, most likely Japanese red pine (Pinus densiflora Sieb. et Zucc.), one of the major conifers growing in Korea. From thirteen graves, six were successfully dated by a master chronology of Japanese red pine for Korea. Due to the absence of bark rings or the cambial surface (waney edge), the number of sapwood rings had to be estimated to obtain the likely cutting dates. The cutting dates of six coffins were estimated to be from A.D. 1643 ±10 to 1660 ±10. These tree-ring dates were at least 100 years younger than expected for this type of graves by archeologists.

scholarly journals SOUTH KOREA CULTURAL HISTORY BETWEEN 1960S AND 2012

2016 ◽  
Vol 1 ◽  
pp. 71-118 ◽  
Author(s):  
Mi Sook PARK
Keyword(s):  
South Korea ◽  
Detailed Analysis ◽  
Cultural History ◽  
Cultural Policy ◽  
Institutional Practices ◽  
State Culture ◽  
South Korean ◽  
Korean State ◽  
Contemporary Context

This paper examines the development of South Korean cultural policy from the 1970s to the present. It contextualises South Korean state, culture and its cultural policy within the framework of state developmentalism, so as to understand their dynamics and relationships. A detailed analysis of how the national cultural policy is interpreted and implemented through institutional practices, historically and in its contemporary context shall be made.

Two new foliicolous species of Strigula (Strigulaceae, Strigulales) in Korea offer insight in phorophyte-dependent variation of thallus morphology

Phytotaxa ◽  
2020 ◽  
Vol 443 (1) ◽  
pp. 1-12 ◽  
Author(s):  
JUNG-JAE WOO ◽  
ROBERT LÜCKING ◽  
SEUNG-YOON OH ◽  
YONG-CHULL JEUN ◽  
JAE-SEOUN HUR
Keyword(s):  
South Korea ◽  
Detailed Analysis ◽  
Species Delimitation ◽  
Molecular Data ◽  
Its Sequences ◽  
Combined Analysis ◽  
Foliicolous Lichens ◽  
Anatomical Characters ◽  
Abundant Genus ◽  
Shed Light

Foliicolous lichens grow on the surface of living leaves in tropical and subtropical forests. Compared to a large number of species of foliicolous lichens reported from other regions in tropical and subtropical Asia, only six species of the otherwise abundant genus Strigula have been registered from South Korea so far. Three of these, morphologically identified as S. concreta, S. macrocarpa, and S. smaragdula, had previously been shown to share near-identical ITS sequences, casting doubt about the usefulness of this marker for species delimitation in the genus Strigula. To shed light on this conundrum, we surveyed the diversity of the genus Strigula in the Gotjawal forest area on Jeju Island south of mainland Korea, where the climate and vegetation are suitable for foliicolous lichens. As the result of a combined analysis of phenotype and molecular data of the ITS fungal barcoding marker, we found that material morphologically similar to known species formed two strongly supported clades, representing two species new to science, S. depressa Woo, Lücking & Hur sp. nov. and S. multiformis Woo, Lücking & Hur sp. nov., which are described herein. Strigula multiformis included the four previously sequenced specimens identified as S. concreta, S. macrocarpa, and S. smaragdula. A detailed analysis of morphological and anatomical characters revealed that all specimens of S. multiformis were anatomically uniform but varied in thallus morphology, mostly resembling S. smaragdula but with some forms similar to S. concreta and S. macrocarpa, explaining the previous misidentifications. This variation was found to be driven by leaf characters of the phorophyte species, as these apparently influence the morphology of the subcuticular thalli.

scholarly journals Generating Employment For Turkey: Policy Alternatives In Comparison With Selected Countries

2011 ◽  
Vol 6 (11) ◽  
Author(s):  
Mehmet Huseyin Bilgin ◽  
M. Cem Toker ◽  
Ender Demir
Keyword(s):  
United Kingdom ◽  
South Korea ◽  
Labor Markets ◽  
Detailed Analysis ◽  
Policy Options ◽  
Policy Alternatives

The main purpose of this paper is to provide some lessons for Turkey from the experiences of some selected countries that gained success in their fight against unemployment. In this respect, the experiences of selected countries; Ireland, Netherlands, United Kingdom and South Korea will be analyzed and the policy options for Turkey will be formed up. It is expected that the detailed analysis and comparison of the reforms in labor markets of these countries will put forward essential and applicable results. It is also supposed that our results will greatly contribute to the decrease in the unemployment level in Turkey, when applied. By doing so, this paper endeavors to get some meaningful policy findings for Turkey. In addition, it is believed that the comparison of the labor markets of these countries, the economic structures and labor markets of which are fairly different from each other will result in interesting findings.

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