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Article: The impact of COVID-19 on the format and nature of academic conferences in mathematics education.

Engelbrecht, Johann / Kwon, Oh Nam / Borba, Marcelo C / Yoon, Hyunkyoung / Bae, Younggon / Lee, Kyungwon

ZDM : the international journal on mathematics education

2022 Volume 55, Issue 1, Page(s) 95–108

Abstract: The global COVID-19 pandemic has provided an opportunity to re-examine the possibility of organising virtual conferences in mathematics education, in which the social needs of participants can also be addressed. In this study we investigated the future ... ...

Abstract	The global COVID-19 pandemic has provided an opportunity to re-examine the possibility of organising virtual conferences in mathematics education, in which the social needs of participants can also be addressed. In this study we investigated the future impact that this change may have on the format and nature of mathematics education conferences. The study was conducted in two phases. We used an online questionnaire in which we asked participants to give us some input on the issues above. In the second phase of the project, focus group interviews were conducted with international mathematics education researchers
Language	English
Publishing date	2022-09-20
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2277345-9
ISSN	1863-9704 ; 1863-9690
ISSN (online)	1863-9704
ISSN	1863-9690
DOI	10.1007/s11858-022-01421-y
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: An effective COVID-19 vaccine hesitancy intervention focused on the relative risks of vaccination and infection.

Byerley, Cameron O'Neill / Horne, Dru / Gong, Mina / Musgrave, Stacy / Valaas, Laura A / Rickard, Brian / Yoon, Hyunkyoung / Park, Min Sook / Mirin, Alison / Joshua, Surani / Lavender, Heather / You, Sukjin

Scientific reports

2024 Volume 14, Issue 1, Page(s) 7419

Abstract: We designed the Relative Risk Tool (RRT) to help people assess the relative risks associated with COVID-19 vaccination and infection. In May 2022 (N = 400) and November 2022 (N = 615), U.S. residents participated in a survey that included questions about ...

Abstract	We designed the Relative Risk Tool (RRT) to help people assess the relative risks associated with COVID-19 vaccination and infection. In May 2022 (N = 400) and November 2022 (N = 615), U.S. residents participated in a survey that included questions about the risks of vaccination and infection. In both cohorts, we found an association between relative risk perception and vaccine hesitancy. Participants in the May cohort were randomly assigned an intervention: to see information from the RRT or the Centers for Disease Control and Prevention (CDC). After the intervention, participants answered the same questions about risk perception and vaccination intent again. The RRT was more effective than the CDC at changing risk perception and increasing vaccination intent. In November, the survey structure was the same, but the RRT was the only intervention included, and we confirmed that the RRT was effective at changing opinions in this new sample. Importantly, the RRT provided accurate information about the risks of serious adverse outcomes to vaccination and still increased vaccination intent. Our work suggests that the RRT helps people assess relative risk, which can in turn help empower them to make informed decisions and ultimately reduce vaccine hesitancy.
MeSH term(s)	United States ; Humans ; COVID-19/prevention & control ; COVID-19 Vaccines/adverse effects ; Risk ; Centers for Disease Control and Prevention, U.S. ; Intention ; Vaccination
Chemical Substances	COVID-19 Vaccines
Language	English
Publishing date	2024-03-28
Publishing country	England
Document type	Randomized Controlled Trial ; Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-024-57841-1
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Molecular Detection and Phylogeny of Tick-Borne Pathogens in Ticks Collected from Dogs in the Republic of Korea.

Truong, A-Tai / Noh, Jinhyeong / Park, Yeojin / Seo, Hyun-Ji / Kim, Keun-Ho / Min, Subin / Lim, Jiyeon / Yoo, Mi-Sun / Kim, Heung-Chul / Klein, Terry A / Lee, Hyunkyoung / Yoon, Soon-Seek / Cho, Yun Sang

Pathogens (Basel, Switzerland)

2021 Volume 10, Issue 5

Abstract: Ticks are important vectors of various pathogens that result in clinical illnesses in humans and domestic and wild animals. Information regarding tick infestations and pathogens transmitted by ticks is important for the identification and prevention of ... ...

Abstract	Ticks are important vectors of various pathogens that result in clinical illnesses in humans and domestic and wild animals. Information regarding tick infestations and pathogens transmitted by ticks is important for the identification and prevention of disease. This study was a large-scale investigation of ticks collected from dogs and their associated environments in the Republic of Korea (ROK). It included detecting six prevalent tick-borne pathogens (
Language	English
Publishing date	2021-05-17
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2695572-6
ISSN	2076-0817
ISSN	2076-0817
DOI	10.3390/pathogens10050613
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Article ; Online: Proteomic Analysis of Novel Components of

Choudhary, Indu / Hwang, Du Hyeon / Lee, Hyunkyoung / Yoon, Won Duk / Chae, Jinho / Han, Chang Hoon / Yum, Seungshic / Kang, Changkeun / Kim, Euikyung

Toxins

2019 Volume 11, Issue 3

Abstract: Nowadays, proliferation of jellyfish has become a severe matter in many coastal areas around the world. ... ...

Abstract	Nowadays, proliferation of jellyfish has become a severe matter in many coastal areas around the world. Jellyfish
MeSH term(s)	Animals ; Cnidarian Venoms/chemistry ; Cnidarian Venoms/toxicity ; Phospholipases A2/chemistry ; Proteins/analysis ; Proteins/chemistry ; Proteolysis ; Proteomics ; Scyphozoa
Chemical Substances	Cnidarian Venoms ; Proteins ; Phospholipases A2 (EC 3.1.1.4)
Language	English
Publishing date	2019-03-08
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2518395-3
ISSN	2072-6651 ; 2072-6651
ISSN (online)	2072-6651
ISSN	2072-6651
DOI	10.3390/toxins11030153
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Article: Molecular Detection and Phylogeny of Tick-Borne Pathogens in Ticks Collected from Dogs in the Republic of Korea

Pathogens. 2021 May 17, v. 10, no. 5

2021

Abstract	Ticks are important vectors of various pathogens that result in clinical illnesses in humans and domestic and wild animals. Information regarding tick infestations and pathogens transmitted by ticks is important for the identification and prevention of disease. This study was a large-scale investigation of ticks collected from dogs and their associated environments in the Republic of Korea (ROK). It included detecting six prevalent tick-borne pathogens (Anaplasma spp., A. platys, Borrelia spp., Babesia gibsoni, Ehrlichia canis, and E. chaffeensis). A total of 2293 ticks (1110 pools) were collected. Haemaphysalis longicornis (98.60%) was the most frequently collected tick species, followed by Ixodes nipponensis (0.96%) and H. flava (0.44%). Anaplasma spp. (24/1110 tick pools; 2.16%) and Borrelia spp. (4/1110 tick pools; 0.36%) were detected. The phylogenetic analyses using 16S rRNA genes revealed that the Anaplasma spp. detected in this study were closely associated with A. phagocytophilum reported in humans and rodents in the ROK. Borrelia spp. showed phylogenetic relationships with B. theileri and B. miyamotoi in ticks and humans in Mali and Russia. These results demonstrate the importance of tick-borne disease surveillance and control in dogs in the ROK.
Keywords	Babesia gibsoni ; Ehrlichia canis ; Haemaphysalis longicornis ; Ixodes ; Russia ; disease prevention ; disease surveillance ; phylogeny ; tick-borne diseases ; ticks ; Mali ; South Korea
Language	English
Dates of publication	2021-0517
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2695572-6
ISSN	2076-0817
ISSN	2076-0817
DOI	10.3390/pathogens10050613
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Molecular Detection and Phylogeny of Tick-Borne Pathogens in Ticks Collected from Dogs in the Republic of Korea

A-Tai Truong / Jinhyeong Noh / Yeojin Park / Hyun-Ji Seo / Keun-Ho Kim / Subin Min / Jiyeon Lim / Mi-Sun Yoo / Heung-Chul Kim / Terry A. Klein / Hyunkyoung Lee / Soon-Seek Yoon / Yun Sang Cho

Pathogens, Vol 10, Iss 613, p

2021 Volume 613

Abstract	Ticks are important vectors of various pathogens that result in clinical illnesses in humans and domestic and wild animals. Information regarding tick infestations and pathogens transmitted by ticks is important for the identification and prevention of disease. This study was a large-scale investigation of ticks collected from dogs and their associated environments in the Republic of Korea (ROK). It included detecting six prevalent tick-borne pathogens ( Anaplasma spp., A. platys , Borrelia spp., Babesia gibsoni , Ehrlichia canis , and E. chaffeensis ). A total of 2293 ticks (1110 pools) were collected. Haemaphysalis longicornis (98.60%) was the most frequently collected tick species , followed by Ixodes nipponensis (0.96%) and H. flava (0.44%). Anaplasma spp. (24/1110 tick pools; 2.16%) and Borrelia spp. (4/1110 tick pools; 0.36%) were detected. The phylogenetic analyses using 16S rRNA genes revealed that the Anaplasma spp. detected in this study were closely associated with A. phagocytophilum reported in humans and rodents in the ROK. Borrelia spp. showed phylogenetic relationships with B. theileri and B. miyamotoi in ticks and humans in Mali and Russia. These results demonstrate the importance of tick-borne disease surveillance and control in dogs in the ROK.
Keywords	dog ticks ; Haemaphysalis longicornis ; Ixodes nipponensis ; Haemaphysalis flava ; anaplasmosis ; Lyme borreliosis ; Medicine ; R
Subject code	630
Language	English
Publishing date	2021-05-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Anticancer Effect of

Lee, Hyunkyoung / Bae, Seong Kyeong / Kim, Munki / Pyo, Min Jung / Kim, Minkyung / Yang, Sujeoung / Won, Chung-Kil / Yoon, Won Duk / Han, Chang Hoon / Kang, Changkeun / Kim, Euikyung

Evidence-based complementary and alternative medicine : eCAM

2017 Volume 2017, Page(s) 2752716

Abstract: Various kinds of animal venoms and their components have been widely studied for potential therapeutic applications. This study evaluated ... ...

Abstract	Various kinds of animal venoms and their components have been widely studied for potential therapeutic applications. This study evaluated whether
Language	English
Publishing date	2017-07-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	2171158-6
ISSN	1741-4288 ; 1741-427X
ISSN (online)	1741-4288
ISSN	1741-427X
DOI	10.1155/2017/2752716
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Article ; Online: Prevalence of antibodies against Anaplasma spp., Borrelia burgdorferi sensu lato, Babesia gibsoni, and Ehrlichia spp. in dogs in the Republic of Korea.

Lee, Seunghee / Lee, Hyunkyoung / Park, Jung-Won / Yoon, Soon-Seek / Seo, Hyun-Ji / Noh, Jinhyeong / Yoo, Mi-Sun / Kim, Keun-Ho / Park, Yeojin / Cho, Yun Sang / So, Byung Jae

Ticks and tick-borne diseases

2020 Volume 11, Issue 4, Page(s) 101412

Abstract: There is a lack of comprehensive studies on the seroprevalence of tick-borne pathogens in the Republic of Korea. Therefore, the aim of this study was to investigate the seroprevalences of Anaplasma spp. (A. phagocytophilum/A. platys), Borrelia ... ...

Abstract	There is a lack of comprehensive studies on the seroprevalence of tick-borne pathogens in the Republic of Korea. Therefore, the aim of this study was to investigate the seroprevalences of Anaplasma spp. (A. phagocytophilum/A. platys), Borrelia burgdorferi sensu lato, Babesia gibsoni, Ehrlichia spp. (E. canis/E. ewingii), and Ehrlichia chaffeensis in dogs across the Republic of Korea in 2017 and 2018. A total of 2215 serum samples collected from 938 companion dogs, 969 shelter dogs, and 308 military working dogs were examined using commercial enzyme-linked immunosorbent assay (ELISA) and indirect fluorescence immunoassay (IFA) kits. Data collected for each animal, including breed, sex, age, region, season, and dog type, were used for statistical analysis. The overall seroprevalence was highest for Anaplasma spp. (15.1 %), followed by Ehrlichia spp. (10.3 %), B. burgdorferi sensu lato (6.4 %), E. chaffeensis (2.3 %), and B. gibsoni (1.7 %). One hundred and sixty-one dogs had antibodies against two or three different pathogens. The most common combinations were Anaplasma spp. - Ehrlichia spp. (2.1 %), Anaplasma spp. - E. chaffeensis (1.4 %), and Anaplasma spp. - B. burgdorferi sensu lato (1.2 %). Season was significantly associated with the seroprevalences of B. burgdorferi sensu lato and Ehrlichia spp., with dogs presenting the highest percentage of positive results during summer. Anaplasma spp. and B. gibsoni were significantly more prevalent in the northern and southern regions, respectively. The seroprevalences of Anaplasma spp., B. burgdorferi sensu lato, and Ehrlichia spp. were significantly higher in military working dogs, while the seroprevalence of E. chaffeensis was higher in companion dogs. The current findings are important for future surveillance of canine tick-borne pathogens and designing appropriate approaches for the diagnosis and control of these pathogens in the Republic of Korea.
MeSH term(s)	Anaplasma/isolation & purification ; Anaplasmosis/epidemiology ; Anaplasmosis/microbiology ; Animals ; Antibodies, Bacterial/blood ; Babesia/isolation & purification ; Babesiosis/epidemiology ; Babesiosis/parasitology ; Borrelia burgdorferi Group/isolation & purification ; Dog Diseases/epidemiology ; Dog Diseases/microbiology ; Dog Diseases/parasitology ; Dogs ; Ehrlichia/isolation & purification ; Ehrlichiosis/epidemiology ; Ehrlichiosis/microbiology ; Ehrlichiosis/veterinary ; Female ; Lyme Disease/epidemiology ; Lyme Disease/microbiology ; Lyme Disease/veterinary ; Male ; Prevalence ; Republic of Korea/epidemiology ; Seroepidemiologic Studies
Chemical Substances	Antibodies, Bacterial
Language	English
Publishing date	2020-02-26
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2541872-5
ISSN	1877-9603 ; 1877-959X
ISSN (online)	1877-9603
ISSN	1877-959X
DOI	10.1016/j.ttbdis.2020.101412
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: In vitro characterization of jellyfish venom fibrin(ogen)olytic enzymes from

Bae, Seong Kyeong / Lee, Hyunkyoung / Heo, Yunwi / Pyo, Min Jung / Choudhary, Indu / Han, Chang Hoon / Yoon, Won Duk / Kang, Changkeun / Kim, Euikyung

The journal of venomous animals and toxins including tropical diseases

2017 Volume 23, Page(s) 35

Abstract: Background: Because jellyfish are capable of provoking envenomation in humans, they are considered hazardous organisms. Although the effects of their toxins are a matter of concern, information on the venom components, biological activity and ... ...

Abstract	Background: Because jellyfish are capable of provoking envenomation in humans, they are considered hazardous organisms. Although the effects of their toxins are a matter of concern, information on the venom components, biological activity and pathological mechanisms are still scarce. Therefore, the aim of the present study was to investigate a serine protease component of Methods: To determine the relationship between fibrinolytic activity of NnV and the serine protease, fibrin zymography was performed using metalloprotease and serine protease inhibitors. The biochemical characterization of serine proteases of NnV were determined by the amidolytic assay. Fractions with fibrinolytic activity were obtained by DEAE cation exchange column. Results: NnV displayed fibrinolytic activities with molecular masses of approximately 70, 35, 30, and 28 kDa. The fibrinolytic activity of NnV was completely obliterated by phenylmethylsulfonyl fluoride, a prototype serine protease inhibitor. Based on amidolytic assays using chromogenic substrates specific for various kinds of serine proteases, NnV predominantly manifested a chymotrypsin-like feature. Its activity was completely eliminated at low pH (< 6) and high temperatures (> 37 °C). Some metal ions (Co Conclusion: The present study showed that
Language	English
Publishing date	2017-07-19
Publishing country	Brazil
Document type	Journal Article
ZDB-ID	2031021-3
ISSN	1678-9199 ; 1678-9199 ; 0104-7930
ISSN (online)	1678-9199
ISSN	1678-9199 ; 0104-7930
DOI	10.1186/s40409-017-0125-8
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Prevalence of antibodies against Anaplasma spp., Borrelia burgdorferi sensu lato, Babesia gibsoni, and Ehrlichia spp. in dogs in the Republic of Korea

Lee, Seunghee / Lee, Hyunkyoung / Park, Jung-Won / Yoon, Soon-Seek / Seo, Hyun-Ji / Noh, Jinhyeong / Yoo, Mi-Sun / Kim, Keun-Ho / Park, Yeojin / Cho, Yun Sang / So, Byung Jae

Ticks and tick-borne diseases. 2020 Feb. 24,

2020

Abstract	There is a lack of comprehensive studies on the seroprevalence of tick-borne pathogens in the Republic of Korea. Therefore, the aim of this study was to investigate the seroprevalences of Anaplasma spp. (A. phagocytophilum/A. platys), Borrelia burgdorferi sensu lato, Babesia gibsoni, Ehrlichia spp. (E. canis/E. ewingii), and Ehrlichia chaffeensis in dogs across the Republic of Korea in 2017 and 2018. A total of 2215 serum samples collected from 938 companion dogs, 969 shelter dogs, and 308 military working dogs were examined using commercial enzyme-linked immunosorbent assay (ELISA) and indirect fluorescence immunoassay (IFA) kits. Data collected for each animal, including breed, sex, age, region, season, and dog type, were used for statistical analysis. The overall seroprevalence was highest for Anaplasma spp. (15.1 %), followed by Ehrlichia spp. (10.3 %), B. burgdorferi sensu lato (6.4 %), E. chaffeensis (2.3 %), and B. gibsoni (1.7 %). One hundred and sixty-one dogs had antibodies against two or three different pathogens. The most common combinations were Anaplasma spp. - Ehrlichia spp. (2.1 %), Anaplasma spp. - E. chaffeensis (1.4 %), and Anaplasma spp. - B. burgdorferi sensu lato (1.2 %). Season was significantly associated with the seroprevalences of B. burgdorferi sensu lato and Ehrlichia spp., with dogs presenting the highest percentage of positive results during summer. Anaplasma spp. and B. gibsoni were significantly more prevalent in the northern and southern regions, respectively. The seroprevalences of Anaplasma spp., B. burgdorferi sensu lato, and Ehrlichia spp. were significantly higher in military working dogs, while the seroprevalence of E. chaffeensis was higher in companion dogs. The current findings are important for future surveillance of canine tick-borne pathogens and designing appropriate approaches for the diagnosis and control of these pathogens in the Republic of Korea.
Keywords	Anaplasma phagocytophilum ; Anaplasma platys ; Babesia gibsoni ; Borrelia burgdorferi ; Ehrlichia canis ; Ehrlichia chaffeensis ; Ehrlichia ewingii ; antibodies ; blood serum ; data collection ; dogs ; enzyme-linked immunosorbent assay ; fluorescent antibody technique ; monitoring ; pathogens ; seroprevalence ; statistical analysis ; summer ; taxonomy ; tick-borne diseases ; ticks ; South Korea
Language	English
Dates of publication	2020-0224
Publishing place	Elsevier GmbH
Document type	Article
Note	Pre-press version
ZDB-ID	2541872-5
ISSN	1877-9603 ; 1877-959X
ISSN (online)	1877-9603
ISSN	1877-959X
DOI	10.1016/j.ttbdis.2020.101412
Database	NAL-Catalogue (AGRICOLA)

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