• Title/Summary/Keyword: 거북목

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Observation on the Reeves Turtle (Chinonychus reevesii) Eggs (남생이 (파충강: 거북목) 알의 관찰 사례)

  • Lee Won-Koo
    • The Korean Journal of Soil Zoology
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    • v.8 no.1_2
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    • pp.58-60
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    • 2003
  • The author has observed a reeves turttle (Chinemys reevesii) obtained from a market on Jeonju city, Korea. The turttle laid 5 eggs during the period from 31st Aug. to 5th Sep., 2003. The range of egg sizes was 3.5-3.9${\times}$1.9-2.4 cm and that of egg weights, 7.2-10.9 g. It seems to be difficult to distinguish the reeves tuttle eggs from the red-eard tuttle (Pseudemys consina consina) eggs because they are so similar each other in size and shape. He could not hatch out the reeves tuttle eggs.

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Current Status and Distribution of Reptiles in the Republic of Korea (한국산 파충류의 현황과 분포)

  • Song, Jae-Young
    • Korean Journal of Environmental Biology
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    • v.25 no.2
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    • pp.124-138
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    • 2007
  • In order to characterize the current status and distribution of reptiles currently inhabiting the Republic of Korea, the results of survey data were analyzed in this study. The results of this analysis showed that the reptiles were distributed into two orders, seven families, and 21 species, with the exception of six marine reptiles, including Dermochelys coriacea schlegelii, Chelonia mydas japonica, Caretta caretta, Hydrophis melanocephalus, Hydrophis cyanocinctus, and Pelamis platrrus. Also, the taxonomic revisions of several species were suggested, although this would be ill-advised before further studies can be conducted regarding the current status of marine reptiles in the region.

Proposal of the Problem and Solution for Smart Media of Syndrome (스마트미디어의 증후군과 문제점 및 해결 방안 제안)

  • Joo, heon-sik
    • Proceedings of the Korea Contents Association Conference
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    • 2015.05a
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    • pp.393-394
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    • 2015
  • 본 스마트미디어의 증후군과 문제점 및 해결 방안에 제안했다. 스마트기기의 과다사용으로 거북목증후군, 손목터널, 디지털치매 증상이 나타내고 있다. 따라서 해결 방안으로 스마트미디어 사용을 줄이고, 몸과 마음을 쉬게 하고 스트레칭 등 운동과 쉼을 갖는 것을 예방 및 방안으로 제안한다.

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Development of Textile Sensors for Prevention of Forward Head Posture (거북목 예방을 위한 텍스타일 센서 개발)

  • Minsuk kim;Jinhee Park;Jooyong Kim
    • Journal of Fashion Business
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    • v.27 no.4
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    • pp.125-140
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    • 2023
  • This study aimed to develop a smart wearable device for assessing the risk angle associated with turtle neck syndrome in patients with Video Display Terminal (VDT) syndrome. Turtle neck syndrome, characterized by forward head posture resulting from upper cross syndrome, leads to thoracic kyphosis. In this research, a stretch sensor was used to monitor the progression of turtle neck syndrome, and the sensor data was analyzed using a Universal Testing Machine (UTM) and the Gauge Factor (GF) calculation method. The scapula and cervical spine angles were measured at five stages, with 15-degree increments from 0° to 60°. During the experimental process, the stretch sensor was attached to the thoracic spine in three different lengths: 30mm, 50mm, and 100mm. Among these, the attachment method yielding the most reliable data was determined by measuring with three techniques (General Trim Adhesive, PU film, and Heat Transfer Machine), and clothing using the heat transfer machine was selected. The experimental results confirmed that the most significant change in thoracic kyphosis occurred at approximately 30° of forward head posture. Prolonged deformity can lead to various issues, highlighting the need for textile sensor solutions. The developed wearable device aims to provide users with real-time feedback on their turtle neck posture and incorporate features that can help prevent or improve the condition.

Immunocytochemical Studies on the Pancreatic Endocrine Cells of Phylogenetically Different Vertebrates ll. Reptilia, Amphibia, and Pisces (계통발생에 따른 각종 척추동물의 췌장 내분비세포에 관한 면역 세포화학적 연구 II. 파충강, 양서강 및 어강에 관하여)

  • 김남중;권혁방최월봉
    • The Korean Journal of Zoology
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    • v.34 no.4
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    • pp.433-451
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    • 1991
  • 척추동물(7목 23종)의 췌장에서 insulin( B)세포, glucagon(A)세포, somatostatin( D)세포 및 pancreatic polypeptide( PP)세포 등을 면역세포화학법으로 동정하여 이들의 출현율, 분포양상 및 형태 등을 계통별로 비교하였다. 파충강의 거북목, 양서강의 유미목 및 어강의 악상대목 들을 제외한 모든 종에서 췌도의 형성을 관찰할 수 있었으며, 췌도를 구성하는 내분비세포의 크기에는 계통간의 차이가 있었다. B세포는 파충강의 것이 가장 크고, 양서강, 어강의 순이 었으며 A와 PP세포는 양서강, 파충강 및 어강의 순서였다. D세포는 양서강의 것이 가장 윤고, 다음이 어장이었으며, 파충강의 것이 가장 작았다. 이들 세포의 모양은 B세포의 경우 양서강과 어장에서는 원형, 난원형 및 방추형이었으며, 파충강에서는 원추형 및 단기형 등 다양한 모습이었다. A세포는 어강에서는 원헝, 난원형 및 방추형이 고르게 나타났고, 파충강과 양서 강에서는 원주형, 다각형 및 쐐기형이 나타났다. D세포는 모든 동물에서 원형, 난원형 및 방추형이 관찰되었고, 특히 파충강에서는 원추형및 쐐기형도 나타났다. PP세포는 주로 방추형 및 반원형이 대다수이였으며 간혹 원형 또는 다각형 등의 모습도 나타났다. 각 내분비세포의 출현율은 파충강 열 어강 들에서는 B, A, D 및 PP세포 순이었으나, 양서 강에서는 B, A, PP 및 D세포 순으로 나타났다. B와 PP세포는 양서강, 어강 및 파충강 순서로 출현하였고, A세포는 파충강, 어강 및 양서강의 순서이었으며 D세포는 어강, 파충강 및 양서강의 순서였다. 췌도 내에서의 세포의 분포 위치는 세포의 종류에 따라 차이를 보여 B세포의 경우 대다수 동물들에서 중앙부에 균등하게 분포하였으나 A, D및 PP세포는 주로 췌도 주변부에 분포하였고, 어강에서의 D세포는 췌도 중앙부에서도 관찰되었다. 일반적으로 파충강 및 양서 강에서는 외분비 선포조직에서초 내분비세포들이 출현하였으나, 어강에서는 내분비세포가 전혀 출현하지 않았다. 양서강 및 어강 들의 일부 수에서는 췌관상피에서도 드물게 나타났다.

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Breeding Status and Management System Improvement of Pseudemys concinna and Mauremys sinensis Designated as Invasive Alien Turtles in South Korea (법적지정 생태계교란생물의 사육 현황과 관리 개선 방안 - 리버쿠터와 중국줄무늬목거북을 중심으로)

  • Kim, Philjae;Yeun, Sujung;An, Hyeonju;Kim, Su Hwan;Lee, Hyohyemi
    • Ecology and Resilient Infrastructure
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    • v.7 no.4
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    • pp.388-395
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    • 2020
  • Exotic species have been imported for economic purposes, but more recently, an increasing number of animals are imported as pets. With the increasing popularity of two species of turtles, Mauremys sinensis and Pseudemys concinna, the number of pet turtle owners has gradually increased since 2014. The number of turtles increased by 180 in 2017 and 281 in 2019. However, these turtle species have been abandoned to nature, owing to their long lifespans and the changes in conditions of pet owners. The two turtle species have been designated as invasive alien species (AIS) in Korea considering their ecological risks, and the Biological Diversity Act prohibits their release. The owners of Mauremys sinensis and Pseudemys concinna are required to submit the "Application for Approval of Breeding and Grace for AIS" document. In this study, the breeding conditions for the two turtle species were investigated by analyzing the information in the submitted applications for six months (e.g., the suitability of breeding facilities, number of turtles, breeding period, type of pet adoption, and local district of pet owner). A total of 614 cases were analyzed. Because only 58% of breeders provided suitable breeding conditions, breeding information and responsible pet ownership training should be offered to prevent abandonment in natural ecosystems. In addition, continuous monitoring is necessary to prepare for potential problems caused by the lack of information in many applications and the one-off licensing policy.

New Record of the Roundbelly Cowfish, Lactoria diaphana (Ostraciidae, Tetraodontiformes) from Korea (한국산 거북복과(Ostraciidae) 어류 1미기록종, Lactoria diaphana)

  • Kim, Byeong Yeob;Han, Song Hun;Song, Choon Bok
    • Korean Journal of Ichthyology
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    • v.28 no.4
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    • pp.279-282
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    • 2016
  • This is the first report of Lactoria diaphana (Tetraodontiformes: Ostraciide) from Korea. A single specimen (208.0 mm standard length) was collected off the coast of Jejudo Island by gill net on 14 November, 2011. This species is characterized by having a pair of strong spines in front of the eyes, a slightly curved spine on the dorsal ridge, a pair of strong and short spines on the ventro-lateral ridge and various-sized spots on the body. We add L. diaphana to the Korean fish fauna and propose a new Korean name, "So-ppul-bok" for the species.

Responsive Healthcare System for Posture Correction Using Webcam-Based Turtle Neck Syndrome Discrimination Algorithm (웹캠 기반 거북목 판별 알고리즘을 활용한 자세 교정 반응형 헬스케어 시스템)

  • Park, Soyeon;Ryoo, Seojin;Dong, Suh-Yeon
    • Journal of Korea Multimedia Society
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    • v.24 no.2
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    • pp.285-294
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    • 2021
  • This study developed a responsive healthcare system that users can easily use in real life to prevent turtle neck syndrome by posture correction. We propose a system that naturally induces direct posture improvement by adjusting the height with a responsive cradle through a turtle neck discrimination algorithm detecting the turtle neck posture in real time using a webcam. The turtle neck algorithm was developed based on machine learning, using the points that the distance relationship between the jaw line and the shoulder varies depending on the posture. For the younger age group, which is particularly problematic due to the increase in the use of IT devices, image data in different situations according to the height and posture of the cradle was collected and learned as a support vector machine classifier. In addition, a height-adjustable cradle that can support a laptop has been created and expanded into a responsive cradle that can be controlled with software by interlocking with the Arduino. Therefore, this service enables posture correction of many modern people suffering from turtle neck syndrome and will become an essential platform in the increasing online environment in the non-contact era.

T-shirt Design for Maintaining Proper Posture -Focusing on the Principle of Symmetry- (바른 자세 유지를 위한 상의류 디자인 연구 -대칭의 원리를 중심으로-)

  • Jinhua Han;Hanna Kim;Yoonmi Choi;Juhyun Ro
    • Journal of the Korean Society of Clothing and Textiles
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    • v.47 no.2
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    • pp.337-352
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    • 2023
  • This study develops a t-shirt design that align bones and balance muscles in order to maintain proper posture using the basic concepts of symmetry. First, theoretical and 3D design studies, existing literature on proper and improper posture, and the basic concepts of symmetry are studied to create the design. Next, the 3D design process applies bilateral, rotational, and scaling symmetries to design the inner lines from the basic application of symmetry. A two-stage design process is used, whereby the strain map and pressure points are analyzed using the CLO virtual clothing software, and the most effective design is determined through virtual testing. The results show that the Y+)( and X+― design, which combines the position and type of inner lines, is the most effective for posture correction and maintenance. Overall, this study helps create a theoretical and practical basis for exploring and understanding basic lines appropriate for the human body, and subsequently, for developing various products that maintain posture more accurately and precisely.

The Effects of Neck Stabilization Exercise and Proprioceptive Neuromuscular Facilitation on Neck Alignment, NDI, and Static Balance in Adults with Forward-head Posture in a Sitting Position (앉은 자세에서의 목안정화운동과 PNF 목 패턴이 거북목증후군 성인의 목 정렬, 목 장애지수 및 정적균형에 미치는 영향)

  • Song, Gui-Bin;Kim, Jwa-Jun;Kim, Kyu-Ryeong;Kim, Geun-Young
    • PNF and Movement
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    • v.18 no.1
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    • pp.11-22
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    • 2020
  • Purpose: The purpose of this study was to investigate the effects of neck stabilization exercise with PNF for neck alignment, neck disability index, and sitting balance in adults with forward-head posture. Methods: Forty participants were randomly assigned to two groups. Patients in the neck stabilization exercise group (NSG, n = 20) and the proprioceptive neuromuscular facilitation neck pattern exercise group (PNFG, n = 20) were studied 30 minutes a day three times a week for four weeks. Outcomes were measured using cranial vertical angle (CVA), the Korean version of the neck disability index (KNDI), anterior limit of stability (ALOS), and posterior limit of stability (PLOS) before and after the intervention period. Results: There were significant effects in the CVA and the KNDI of both groups pre- and post-intervention. There were significant effects in ALOS and PLOS in the PNFG pre- and post-intervention compared with the NSG. Conclusion: The results of this study suggest that PNF with neck exercise could be beneficial to the static balance of adults with forward-head posture.