• 제목/요약/키워드: Heredity

검색결과 82건 처리시간 0.028초

진성 골격성 III급 부정교합에서 두개저, 상악, 하악의 위치 및 크기에 관한 연구 (A STUDY OF POSITION AND SIZE OF CRANIAL BASE, MAXILLA, AND MANDIBLE IN TRUE SKELETAL CLASS III PATIENTS)

  • 우순섭;최용수;박원희;유임학;이영수;심광섭
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • 제28권1호
    • /
    • pp.24-30
    • /
    • 2002
  • The facial patterns were expressed by the interrelation of variable factors such as heredity, function and environment. Such variable factors have an effect on the growth and development of maxillofacial bones. The malocclusions with skeletal discrepancies are caused by abnormal forms, sizes and positions of cranial base, maxilla and mandible. For the proper diagnosis and treatment planning, the analysis of such structures is necessary. Lateral cephalograms of 54 adults with class III malocclusion patients (test group) and 61 adults with normal occlusion (control group) were analyzed. Anteroposterior relations and sizes of cranial base, maxilla, mandible were estimated to compare with those of normal ones. In test group, the anterior cranial base length was within normal range, but posterior cranial base, maxilla and mandibular body were longer than those in control group, significantly. Based on the cranial base, the location of maxilla in test group was normal, but the location of mandible was more anterior than that in control. Based on the maxilla, the location of mandible was more anterior in test group than that in control. Both mandibular body and ramus anteroposterior lengths in test group were larger than those in control. Both mandibular plane angle and upper gonial angle were within normal range, but lower gonial angle was significantly high in test group.

치매(痴呆)에 관(關)한 동서의학적(東西醫學的) 비교(比較) 고찰(考察) (A Comparative Consideration of Dementia in Oriental and Occidental Medicine)

  • 이동원;신길조;이원철
    • 대한한방내과학회지
    • /
    • 제16권1호
    • /
    • pp.1-16
    • /
    • 1995
  • This study was done in order to investigate the etiology and pathology of dementia in the variety literature. Dementia in elderly persons(above the age of 60) mainly classfied Alzheimer disease and Cerebral vascular dementia. The results were as follows: 1. Dementia patients have abnormal mental function, who have no mental weakness but defects of memory, verbal disturbance, behavior disturbance and loss of intellectual function. 2. Dementia regard as 'me-beng(?病)', 'jeon-gwang(癲狂)', and 'heo-ro(虛勞)' in oriental medicine and the symptom is a silence with no response, mixing, a crying or a laugh, a stranger behavior and a amnesia; disturbances of speech, emotion, behavior. 3. Dementia caused by Alzheimer disease, Multi infarct dementia, Parkinson's disease, sequelae of acute CO poisoning, head injury and alcoholism(occidental medically) and the 'Dam(痰) and Damhwa(痰火), weakness of heart and spleen(心脾虛) caused by pent up anger of seven emotions(七情鬱結), the weakness of liver and kidney(肝腎不足)(oriental medically). 4. The causes of Alzheimer disease are various; a heredity factor, a morphological factor of brain tissues, a psychological factor and a biochemical factor (occidental medically) ; the 'Dam(痰) and Damhwa(痰火) caused by weakness of the internal organs and disturbance of the emotions(oriental medically). 5. Cerebral vascular dementia caused by loss of the certain cerebral neurons and oriental medically caused by obstruction of 'dam(痰)' or 'eo heul(瘀血)'. It is recommended that further study of many sided investigations, specially against a weakness of spiritual functions and a certain neurotoxin in the future.

  • PDF

장애아를 가진 일부 모성의 임신기왕력에 대한 연구 (A Study on a past pregnancy experiences of maternity with handicaped children)

  • 김초강
    • 보건교육건강증진학회지
    • /
    • 제3권1호
    • /
    • pp.63-73
    • /
    • 1985
  • Ratio of physically and mentally handicapped people among the total population is about 3∼4%. Regardless of the extent of seriousness of handicaps, they have to sustain various difficulties in their life time and pose challenging problems to their homes, community and nation. In the spectrum of their problems, measures such as treatment, rehabilitation and welfare work all occupied important part but most significant measure is the prevention. Such handicaps items from health care of maternal and child, mostly causes throughout the process of pregnancy, delivery and upbringing. And then this study is focused on the pregnant history of the mothers with handicapped children. The objective of this study is to identify the basic factors which can create a handicapped child during pregnancy and is to prevent the birth of such a child. For this study, 301 mothers who have handicapped children were selected, now receiving various training at 5 rehabilitation and educational facilities. And questionnaires distributed to them during the period of Oct, 1983 to Dec, 14. The collected responses have been analized in terms of significant numbers, percentage and metic average. Their related results are as follows: 1. The sexual ratio between the male and female was 58.5% compare 41.5%. The average age of the handicapped children was 10.1 years old and that of mothers at the time of the children's birth was 28.9 old years. They were born as 2.14th in their family, the ratio of antenatal care for pregnant mothers was 36.2% and 22.9% were abnormally delivered. 37.9% out of the total were born from mothers with ages above 35 years and as their first baby. 2. The time of confirming the handicapped nature of children was during babyhood by 97.1% and discovery of these misfortunes were made by chance. As for causes of those-handicapped status 20.9% disease from complication, 15.3% from difficulties experience at the time of delivery, 11.3% from heredity and 10% were results of drug abuse during pregnancy, and 49.8% of the handicapped children were mentally retarded.

  • PDF

Drosophila melanogaster comple 3종 및 그들간 잡종의 성즐과 생식궁의 표현형적 유연관계 (Phenogenetical Relationships of Sex Comb and Genital Arch in Drosophila melanogaster Complex and Their Hybrids)

  • 최영현;유미애;이원호
    • 한국응용곤충학회지
    • /
    • 제34권4호
    • /
    • pp.308-313
    • /
    • 1995
  • Drosophila melanogaster와 D. Simulan는 전세계적으로 분포하며, D. Sechellia 는 Africa의 Seychelles 제도에만 서식하는 지역종으로, 모두 D. melanogaster complex에 속하는 동포종이다. 이들 D. melanogaster complex 3종을 대상으로 종간 교배를 통한 잡종을 형성하여 성증(sex-bomb)과 생식궁(genital arch)의 표현형적 유연관계를 부모계통과 상호 비교하였다. 상기 3종들 사이의 교배를 통해 4가지 유형의 잡종 수컷을 얻었으며 이들은 모두 불임이었다. 성즐의 평균 치열 수는 D. melanogaster(OR)가 10.73개, D. sechellia(Ja)는 10.69개였으며, D. simulans($O_9$)에서는 8.35개였다. 종간 잡종의 치열수 분석으로 뚜렷한 성즐의 유전양식을 제시할 수가 없었다. 외부 생식기를 구성하는 각 부속기관 중 분류상 중요 기준이 되는 생식궁은 종 특이적 모양을 띠고 있었으며, 종간 접종 생식궁의 일반적인 형태는 부모종간의 중간형인 mosaic 구조였다.

  • PDF

지력의 생득 요인과 경험 요인을 통한 영재성 담론 (Discussion on Giftedness by Genetic and Environmental Factors in the Intellectual Abilities)

  • 송도선
    • 영재교육연구
    • /
    • 제17권2호
    • /
    • pp.280-306
    • /
    • 2007
  • 본 논문은 영재성의 중요한 요소 가운데 하나인 지력(知力)에 초점을 두어, 이에 대한 생득설과 경험설의 입장과 그에 대한 영향력에 대한 다양한 연구들을 종합 분석하고, 이와 관련된 몇 가지 논의를 함으로써 영재성을 이해하는 데에 목적을 두고 있다. 다양한 연구 내용들을 검토한 결과, 인간의 지력은 절반 정도는 타고난다는 것이 보편적인 입장이었다. 하지만 중요한 것은 그것이 평생 고정되는 것이 아니라 후천적 경험에 의해 변하고 발달한다는 점이다. 결국 지력이 중요한 요소인 영재성 자체는 잠재력으로 타고나는 것이지만, 그것은 여러 가지 환경 요인에 따라 그 발현의 여부나 정도가 결정된다는 것이다. 따라서 영재교육에 관한 오늘날의 주요 관심은 생득 요인과 후천 요인의 정도에 대한 논쟁보다는, 그 영재성을 후천적으로 어떻게 최대로 발현시킬 것인가에 있다. 영재성은 뛰어난 유전 요인과 특별한 환경 요인이 역동적으로 상호작용하여 쌍방향의 절묘한 증폭 현상이 일어날 때 비로소 촉발되고 발달한다는 점에서, 그것을 도식적으로 설명하는 데에 깊은 난관이 있음을 이해할 수 있다.

Concept Optimization for Mechanical Product Using Genetic Algorithm

  • Huang Hong Zhong;Bo Rui Feng;Fan Xiang Feng
    • Journal of Mechanical Science and Technology
    • /
    • 제19권5호
    • /
    • pp.1072-1079
    • /
    • 2005
  • Conceptual design is the first step in the overall process of product design. Its intrinsic uncertainty, imprecision, and lack of information lead to the fact that current conceptual design activities in engineering have not been computerized and very few CAD systems are available to support conceptual design. In most of the current intelligent design systems, approach of principle synthesis, such as morphology matrix, bond graphic, or design catalogues, is usually adopted to deal with the concept generation, in which optional concepts are generally combined and enumerated through function analysis. However, as a large number of concepts are generated, it is difficult to evaluate and optimize these design candidates using regular algorithm. It is necessary to develop a new approach or a tool to solve the concept generation. Generally speaking, concept generation is a problem of concept synthesis. In substance, this process of developing design candidate is a combinatorial optimization process, viz., the process of concept generation can be regarded as a solution for a state-place composed of multi-concepts. In this paper, genetic algorithm is utilized as a feasible tool to solve the problem of combinatorial optimization in concept generation, in which the encoding method of morphology matrix based on function analysis is applied, and a sequence of optimal concepts are generated through the search and iterative process which is controlled by genetic operators, including selection, crossover, mutation, and reproduction in GA. Several crucial problems on GA are discussed in this paper, such as the calculation of fitness value and the criteria for heredity termination, which have a heavy effect on selection of better concepts. The feasibility and intellectualization of the proposed approach are demonstrated with an engineering case. In this work concept generation is implemented using GA, which can facilitate not only generating several better concepts, but also selecting the best concept. Thus optimal concepts can be conveniently developed and design efficiency can be greatly improved.

돼지 위축성 비염백신의 효과에 관한 연구 (Efficacy of atropic rhinitis vaccine in pigs)

  • 지영철;로 승;한정희;한태욱
    • 대한수의학회지
    • /
    • 제40권4호
    • /
    • pp.707-717
    • /
    • 2000
  • Atropic rhinitis (AR) is one of major respiratory diseases in pigs. AR causes a great economic losses and is considered to be a multifactorial disease in which herd management, heredity, and environment. Several vaccines against have been developed commercially and used in pig farms but the efficacy of each vaccine is still questionable. In this study, one of commercial AR vaccines, which contains inactivated Bordetella bronchiseptica, Pasteurella multocida type D and their toxoid was evaluated for vaccine efficacy by challenge test. Twenty piglets were divided into four groups as follows; group I was piglets from vaccinated sows (twice before parturition); group II was piglets from vaccinated sows (same as group I) and were vaccinated at 1 day old; group III and IV were piglets without any vaccination. Groups I, II, and III were challenged by intranasal instillation of $5.3{\times}10^7$ CFU of B bronchiseptica twice and $1{\times}10^9$ CFU of P multocida five times. Group IV was control group without any vaccination and any challenge. We compared serological results, recovery rate of P multocida by polymerase chain reaction, clinical signs and pathological findings between vaccinated groups and unvaccinated groups for efficacy of the vaccine, Serological responses against B bronchiseptica and toxigenic P multocida type D were not showed evident discrepancy between vaccinated groups and unvaccinated groups assuming that the antibody responses against the vaccine is very delayed. However, growth rate, clinical signs and snout lesion grading in vaccinated groups showed more favorable than those in unvaccinated group. Therefore, AR vaccination in this study is considered to be effective in the prevention of AR in pigs.

  • PDF

암 위험요인과 관련된 식이와 환경요인에 관한 간호학생의 인식 (Nursing Students식 Perceptions on Diet and as Environmental Factors Related to Cancer Risk Factors)

  • 이혜경;전성주;황미혜;서순림
    • 대한간호학회지
    • /
    • 제28권1호
    • /
    • pp.193-200
    • /
    • 1998
  • The purpose of this study was to identify how students majoring in nursing perceive causes of cancers and the effects of diet for preventing cancers. Data for the study were collected by 651 nursing students, who were registered in the second and third year in three technical colleges and third and fourth year in two universities. The Research instruments included items on general characteristics of subjects, items about the degree of perception of the frequency of cancer onset and items on the perception of mortality. risk factors. preventive diets, knowledge, and high risk factor for cancer in specific body areas. The findings of this study are as follows : 1. Almost all subjects(92.8%) reported that the frequency of cancer onset increases and that it is 93.9% for people over 40. Degree of perception about cancer mortality was low at 33.0%. 2. As far as the perception of risk factors for cancer onset was concerned, smoking, stress, heredity, family history, and alcohol were rated high, over 80.0%. Risk factor in. eluding virus, hormones. pesticides were rated as low. 3. As to the perception of risk factor for body area as associated with diet salted and scorched food were rated at 44.5% for stomach cancer, alcohol, 50.4% for liver cancer, smoking. 72.8% for lung cancer. pregnancy times. 25.3%, and marriage age, 23.0% for uterine cancer, and no delivery experience, 40.1% for breast cancer. 4. The knowledge score for cancer was between 12 and 36, with a mean score of 26.75(SD=4.13). There was a statistically significant difference between experience in raring for cancer patients during clinical practice and knowledge score(t=3.09. p=.002).

  • PDF

비만의 원인과 치료에 대한 동서의학적 고찰 (Oriental and Western Medical Study on the cause and treatment of Obesity)

  • 이상봉;금동호;이명종
    • 동국한의학연구소논문집
    • /
    • 제5권
    • /
    • pp.33-52
    • /
    • 1996
  • The purpose of this study was to investigate efficient treatment in obesity. In order to help clinical application in obesity treatment, this study was performed to investigate the cause and treatment in obesity. The main finding of this study were as follows. 1. In the cause of oriental medicine in obesity, that were moisture(濕), phlegm(痰), gore(瘀), the productive heat(積熱), overeating, supemutrition, underaction, heredity and habitude, psychologic factor(stress) etc. 2. In the western medicine, the cause of obesity were genetic cause, endocrine disorder, hypothalamic extraodinary and secondary effect of drug. But simple obesity is the greater part. Also there were psychologicai and environmental causes. 3. Ear acupuncture of wide application were Naebunbi, Sinmun, Taejang, $ij{\check{o}}m$, $Pyej{\check{o}}m$, $Bij{\check{o}}m$ etc. 4. Body acupuncture of application were $Naej{\check{o}}ng$, $Sangg{\check{o}}h{\check{o}}$, Pungnyung, Kokchi, $Sam{\check{o}}mgyo$, $Umn{\check{o}}ngch{\check{o}}n$ etc. 5. In oriental medical treatment of obesity, Bangpungtongs ngsan(防風通聖散), Daesihotang(大柴胡湯), Seungkitang(承氣湯), Bangkihwangkitang(防己黃?湯), Richulsaryeungtang(二朮四笭湯), Taeksatang(澤瀉湯), Opieum(五皮飮), Gongyundan(控涎丹) etc were wide applicated. 6. The western medical treatment in obesity encourage the dietary cure, exercise cure and behavior adjustment than medical therapy or operation. In treatment of obesity, the dietary cure and herb-drug therapy, ear acupuncture and body acupuncture are effective. But weight maintenance after treating is more important. After all the continuous dietary cure, behavior adjusting cure and exercise cure are necessary.

  • PDF

우리나라 도시(都市) 여학생(女學生)의 초경(初經)에 관(關)한 조사연구(調査硏究) (A Survey on Menarche of School Girls in Seoul and Taegu Area)

  • 남택승;이원덕
    • Journal of Preventive Medicine and Public Health
    • /
    • 제9권1호
    • /
    • pp.153-158
    • /
    • 1976
  • It is clearly defined through a number of authoritative studies that the age of menarche influenced by the various combined factocs such as nutrition status, physical status, physical growth and development status, socio-economic status, locality, culture, education level, climate, race heredity etc. In order to obtain statistical data regarding the menarche of Korean school girls, anthers investigated on 4207 middle school girls and 703 woman college students in Seoul and Teagu during the period of September 10 to 30, 1973 and the result are summarized as followings; 1. The rates of menses experience by years were 18.2% in the age group of 12 years girls, 31.9% in 13 years, 64.6% in 14 years, 89.8% in 15 years, 98.1% in 16 years respectvely. 2. The average age of menarche for the 2504 school girls who were born during the yrar of 1957-1961 is 13.4 years with the rang of 9 years to 16 years. And the most frequent age of menarche is 13 years. 3. The average age of menarche for the 703 woman college students who were born during the year of 1950-1954 is 14.3 years with the rang of 9 years to 18 years. And the most frequent age if menarche is 13 years. 4. The appearence of menarche is most common in August (20.7%) for the group who were born during the year of 1957-1961 and most rear in November (4.2%). And it is also most common in August (19.9%) for the group who were born puring the year of 1950-1954 but most rear in June (3.4%).

  • PDF