• 제목/요약/키워드: Developmental study

검색결과 4,487건 처리시간 0.033초

Prevalence of malocclusions and parafunctional habits in pediatric patients with developmental dyslexia

  • Federica Guglielmi;Anna Alessandri-Bonetti;Geraldine Gemelli;Linda Sangalli;Patrizia Gallenzi
    • 대한치과교정학회지
    • /
    • 제54권4호
    • /
    • pp.229-238
    • /
    • 2024
  • Objective: The study aimed to assess the prevalence of dental malocclusion, orthodontic parameters, and parafunctional habits in children with developmental dyslexia (DD). Methods: Forty pediatric patients (67.5% boys and 32.5% girls, mean age: 11.02 ± 2.53 years, range: 6-15 years) with DD were compared with 40 age- and sex-matched healthy participants for prevalence of dental malocclusion, orthodontic parameters, and parafunctional habits. Dental examinations were performed by an orthodontist. Results: Pediatric patients with DD exhibited a significantly higher prevalence of Angle Class III malocclusion (22.5% vs. 5.0%, P = 0.024), deep bite (27.5% vs. 7.5%, P = 0.019), midline deviation (55.0% vs. 7.5%, P < 0.0001), midline diastemas (32.5% vs. 7.5%, P = 0.010), wear facets (92.5% vs. 15.0%, P < 0.0001), self-reported nocturnal teeth grinding (82.5% vs. 7.5%, P < 0.0001), nail biting (35.0% vs. 0.0%, P < 0.0001), and atypical swallowing (85.0% vs. 17.5%, P < 0.0001) compared to that in healthy controls. Conclusions: Pediatric patients with DD showed a higher prevalence of Class III malocclusion, greater orthodontic vertical and transverse discrepancies, and incidence of parafunctional activities. Clinicians and dentists should be aware of the vulnerability of children with dyslexia for exhibiting malocclusion and encourage early assessment and multidisciplinary intervention.

Development and growth of the temporal fascia: a histological study using human fetuses

  • Kei Kitamura;Satoshi Ishizuka;Ji Hyun Kim;Hitoshi Yamamoto;Gen Murakami;Jose Francisco Rodriguez-Vazquez;Shin-ichi Abe
    • Anatomy and Cell Biology
    • /
    • 제57권2호
    • /
    • pp.288-293
    • /
    • 2024
  • The temporal fascia is a double lamina sandwiching a thick fat layer above the zygomatic bony arch. To characterize each lamina, their developmental processes were examined in fetuses. We observed histological sections from 22 half-heads of 10 mid-term fetuses at 14-18 weeks (crown-rump length, 95-150 mm) and 12 near-term fetuses at 26-40 weeks (crown-rump length, 215-334 mm). The superficial lamina of the temporal fascia was not evident at mid-term. Instead, a loose subcutaneous tissue was attached to the thin, deep lamina of the temporal fascia covering the temporalis muscle. At near-term, the deep lamina became thick, while the superficial lamina appeared and exhibited several variations: i) a mono-layered thick membrane (5 specimens); ii) a multi-layered membranous structure (6) and; iii) a cluster of independent thick fasciae each of which were separated by fatty tissues (1). In the second and third patterns, fatty tissue between the two laminae was likely to contain longitudinal fibrous bands in parallel with the deep lamina. Varying proportions of the multi-layered superficial lamina were not attached to the zygomatic arch, but extended below the bony arch. Whether or not lobulation or septation of fatty tissues was evident was not dependent on age. The deep lamina seemed to develop from the temporalis muscle depending on the muscle contraction. In contrast, the superficial lamina developed from subcutaneous collagenous bundles continuous to the cheek. Therein, a difference in development was clearly seen between two categories of the fasciae.

품목별 농업인 연구모임의 발전방안 (The Desirable Development Direction of Farmer's Study Group in Agricultural Extension Work in Korea)

  • 고순철;정인환
    • 농촌지도와개발
    • /
    • 제17권3호
    • /
    • pp.527-548
    • /
    • 2010
  • The objective of this study is to suggest the developmental tasks for the successful fostering the Farmer's Study Group which have been guided by the agricultural extension work since 1994 in Korea. The 3,278 farmers study groups with 148,420 memberships have been organized in field of grains, cash crop, horticulture, livestock, improving living conditions, food processing and so on. Although the number of study groups have rapidly expanded, there also are tasks to be secured for their successful development in terms of (a) desirable phase of the study groups and goals of its fostering, (b) managements / administration of them, (c) long-term tasks to be reviewed. With regard to the desirable phase of the study groups and goals of its fostering, they should secure differential mission and the way of works compare to the other farmer's groups. Also, there should be consensus on the proper number of study groups to be fostered with a agricultural technical center at local level. With regard to the managements / administration of the study groups, there should be the different support, assistance and guidance according to the developmental level of the groups. For these, there should be evaluation works on the groups, and guidance manuals for the extension workers. Also extension works should facilitate the establishment of networks among groups over the counties. Finally, to establish the nationwide association in hierarchy and to make the cooperative works with similar farmer's group, doing the value-added activities rather than mere information exchange, and the introduction of capacity building programs for the extension workers are long-term tasks needed to review for the successful fostering study groups.

청소년 약물남용 재활교육 프로그램의 모형개발에 관한연구 (The Study for Developing Educational Program Model for Adolescents Substance Abusers associated with Preventive and Rehabilitative Purpose)

  • 장진경
    • 가정과삶의질연구
    • /
    • 제16권3호
    • /
    • pp.11-24
    • /
    • 1998
  • The purpose of this study was to develop the educational program model for adolescent substance abusers in relation to preventive and rehabilitative aspects. This educational program model was developed based not only on the social support theory ecological-developmental approach and cognitive-behavioral approach but also on previous studies. This model can be used both for adolescent substance abusers in early stage and in recovery stage. The main contribution of this study is that adolescent abusers will recover effectively through practicing this educational program model.

  • PDF

결혼준비교육프로그램의 개발 및 평가 (A study on the Development, Implementation and Evaluation of Premarital Education Programs)

  • 정현숙
    • 가정과삶의질연구
    • /
    • 제23권1호
    • /
    • pp.151-159
    • /
    • 2005
  • The purpose of this study is to develope, implement, evaluate of premarital education programs. Based on the need assessment and systemic, developmental, and feministic perspectives, this study developed several formats of premarital education programs such as the enrich program, book and internet site. The enrichment program was implemented for 13 couples, and revealed good evaluation of the general outcomes. Recommendations for future research and implementation of family life education were added.

Ham's F-10 배양액에 첨가된 태아제대혈청과 EDTA가 백서 수정란의 분할에 미치는 영향 (The Effect of EDTA and Fetal Cord Serum Supplementation to Ham's F-10 Culture Medium on Developmental Potential of Mouse Embryos In Vitro)

  • 김병석;이영기;박윤기;이태형;이승호
    • Journal of Yeungnam Medical Science
    • /
    • 제12권1호
    • /
    • pp.124-134
    • /
    • 1995
  • Ham's F-10 기본 배양액과 이 배양액에 여러가지 농도의 EDTA와 태아제대혈청을 단독 또는 같이 혼합한 배양액을 얻어 각각의 배양액에서 5-10주된 백서를 이용하여 2 세포기 배아의 단계적 분할정도를 96시간 동안 관찰하였다. Ham's F-10 기본 배양액에 비해 태아제대혈청이나 EDTA $50{\mu}M$에서 $100{\mu}M$을 단독 또는 함께 첨가한 배양액에서 2 세포기의 배아의 상실배기 난할률이 매우 높았으며 (p<0.05), 포배기 난할률은 태아제대혈청과 EDTA $50{\mu}M$에서 $100{\mu}M$을 첨가한 배양액에서 유의하게 높았다(p<0.05). 체외수정실에서 흔히 사용되는 태아제대혈청을 첨가한 배양액과 비교시 태아제대혈청과 EDTA $100{\mu}M$을 첨가한 배양액에서 상실기 난할률이 유의하게 높았다(p<0.05). 태아제대혈청과 여러 농도의 EDTA를 첨가한 배양액과 EDTA만 첨가한 배양액의 비교에서 태아제대혈청과 EDTA $50{\mu}M$$100{\mu}M$을 첨가한 배양액에서 EDTA $200{\mu}M$만 첨가한 배양액에 비해 상실기 난할률이 매우 유의하게 높았고(p<0.05), 포배기 난할률은 태아제대혈청과 EDTA $100{\mu}M$을 첨가한 배양액이 EDTA $200{\mu}M$을 단독 또는 태아제대혈청과 함께 넣은 배양액에 비해 유의하게 높았다(p<0.05). 결론적으로 Ham's F-10 기본 배양액에 태아제대혈청과 적정 농도의 EDTA $50{\mu}M$$100{\mu}M$을 첨가한 배양액에서 초기 수정란의 분할이 우수함을 알 수 있고, 이는 수정란의 배양시 적절한 배양액을 선택할 수 있는 기초 자료로서 유용할 것으로 사료된다.

  • PDF

Study on the Convenient Freezing Method in Boar Semen

  • 김성곤;장현용;박동헌;박춘근;정희태;김정익;양부근
    • 한국동물번식학회:학술대회논문집
    • /
    • 한국동물번식학회 2004년도 춘계학술발표대회
    • /
    • pp.278-278
    • /
    • 2004
  • The purpose of this study was to establish the convenient freezing method for more cheap and simple. Semen quality was evaluated the motility, viability, abnormality, acrosome intactness and membrane integrity. And there were also examined the developmental rates of IVM/IVF embryos using frozen-thawed boar semen in each treatment group. (omitted)

  • PDF

취약계층 고용혁신모형 연구 (A Study employment innovation model for the disabled vocational rehabilitation)

  • 조선구;노영
    • 한국디지털정책학회:학술대회논문집
    • /
    • 한국디지털정책학회 2006년도 춘계학술대회
    • /
    • pp.281-288
    • /
    • 2006
  • Recently, information technology are rapidly diffused throughout the world. A new paradigm, 'telework' and 'distant education' is a product of the tremendous technological changes driving the disabled vocational rehabilitation. In the computer and information communication technology areas related with web-based telework-distant education, the disabled expect vocational rehabilitation. Therefore nowadays, the disabled effort to adapt to the new information era by web-based telework and distant education. This study attempts to suggest developmental framework of employment innovation model to vitalize the disabled vocational rehabilitation.

  • PDF

학습장애에 대한 고찰 (The Study of Learning Disability)

  • 한재경
    • 혜화의학회지
    • /
    • 제17권1호
    • /
    • pp.21-39
    • /
    • 2008
  • Objectives : The aim of this study was to investigate the concept of learning disability. Method : I surveyed some of medical and special education books about learning disability. Results and Conclusion : The following result were obtained 1. Learning Disability is a terminology having a special difficulty in acquirement or use of listening, speaking, reading, writing, reasoning and arithmetic. It generally has a various form. 2. Learning Disability is induced by congenital factor, postnatal brain damage, environmental malfunction, nutrition and biochemical elements. 3. Learning Disability is classified into developmental and schoolwork.

  • PDF

부모의 통제유형과 자녀의 반사회적 행동과의 관계 (Parental Controls and Antisocial Behavior of Children)

  • 김선애;김준호
    • 아동학회지
    • /
    • 제16권2호
    • /
    • pp.49-63
    • /
    • 1995
  • The purpose of the present study was to investigate effective parental controls by age of child. The subjects participating in this study were 10, 12, 15, and 18-year-old school boys residing in Seoul. A total of 1,468 boys was used in the final analysis. Factor analysis and multiple regression of SPSS $PC^+$ were utilized to test the hypotheses. The findings of the analysis showed that the impact of various parental controls on antisocial behavior varied with developmental stages of the children. Younger boys were more susceptible to direct controls, while indirect controls proved more effective for older youngsters.

  • PDF