• 제목/요약/키워드: Cross-sectional studies

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출판만화 칸새의 유형별 특징 (Typological characteristic of the comics published gutter)

  • 이석재;윤기헌
    • 만화애니메이션 연구
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    • 통권33호
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    • pp.271-291
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    • 2013
  • 칸과 칸의 반복을 통해 만화는 그 내용과 이미지를 구동시키고 독자에게 전달한다. 칸은 시 공간의 단면적 요소를 담고 있으며, 칸의 반복은 이러한 단면들을 연속되는 흐름으로 변화시키는 역할을 한다. 연속적 흐름을 원활하게 이어주는 역할은 칸과 칸 사이에 존재하는 칸새에 의해 이루어지고 초창기 칸새의 운용은 칸에 의한 수동적 의미가 대부분이었다. 그러나 칸새는 단지 칸과 칸을 이어주는 매개체의 역할뿐만 아니라 만화 구성에 새로운 표현 방식을 창출하는 효율적 참여 장치이다. 칸새의 특징적 기능은 만화의 역사와 궤를 같이 하며 만화의 구성에 새로운 연출방식을 제시하며 그 명맥을 이어왔다. 칸새의 특징적 기능으로는 장면전환 기능, 회상 기능, 말칸 기능, 팬 기능, 장식적 기능으로 크게 나눌 수 있고 이들 유형은 칸새의 직접적인 표현방식으로 만화연출에 능동적으로 기능한다. 이 기능적 요소들은 작가가 의도한 바에 의해 표현되고 서술되는 내용에 따라 그 빈도가 일정치 않지만 보편화된 경우, 작가 개개인의 차이가 누적되어 활용되는 빈도에 따라 새로운 연출구성의 방향이 제시될 수도 있을 것이다.

A longitudinal study of the relation of lead in blood to lead in air concentrations among battery workers

  • Hodgkins Douglas G.;Robins Thomas G.;Hinkamp David L.;Schork M. Anthony;Krebs William H.
    • 대한예방의학회:학술대회논문집
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    • 대한예방의학회 1994년도 교수 연수회(환경)
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    • pp.577-584
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    • 1994
  • The relation between lead in air (PbA) and lead in blood (PbB), concentrations was investigated among 44 workers in five major operations in a United States high volume, lead acid battery plant. The study covered a 30 month period in which workers received frequent PbA and PbB determinations, workers remained in a single job, and PbA concentrations averaged below the US Occupational Safety and Health Administration (OSHA) permissible exposure limit of $50{\mu}g/m^{3}$. In both univariate and multivariable linear regressions, longitudinal analyses averaging PbA concentrations over the 30 month study period appeared superior to cross sectional analyses using only six month PbA averages .to model PbB concentrations. The covariate adjusted coefficient ($\alpha$ value) for PbA($\mu/m^{3}$) in models of PbB (${\mu}g/100\;g$) was 1-14. This figure is strikingly higher than that reported in previous studies in the lead acid battery industry in all of which PbA concentrations were substantially higher than in the current study. Plausible explanations for the differences in a: values include non-linearity of the PbA-PbB curve, a higher fraction of large size particulate associated with higher PbA concentrations, survivor bias among workers exposed to higher PbA concentrations, and the cross sectional designs of most previous studies. Despite previously reported problems with the model used by OSHA to predict PbA-PbB relations, the findings of this study are in good agreement with the predictions of that model.

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Cross Sectional Survey on Association between Alcohol, Betel-Nut, Cigarette Consumption and Health Promoting Behavior of Industrial Workers in Ghaziabad

  • Arora, Dimple;Marya, Charu Mohan;Menon, Ipseeta;Oberoi, Sukhvinder Singh;Dhingra, Chandan;Anand, Richa
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권1호
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    • pp.139-144
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    • 2015
  • Background: The work force in industries are at risk of developing unduly high rates of health and behaviour related problems including abuse of alcohol, betel nut and cigarette (alcohol, betel nut and cigarette consumption). This study describes the relationships between alcohol, betel nut and cigarette consumption and health promoting behaviour among industrial workers. Materials and Methods: A cross sectional survey was conducted on workers in various industries of Ghaziabad city with concerned authority permission. A sample size of 732 workers was calculated based on pilot study. Through Simple random sampling 732 workers in 20 to 50 years age group with informed consent were interviewed through structured, pretested, validated questionnaire in vernacular language by one calibrated investigator. Data on socio demography, alcohol, betel nut and cigarette consumption pattern and health behaviour were collected. The association between health promoting behaviour and alcohol, betel nut and cigarette consumption was analysed by Logistic regression and Chi-square test through SPSS 16 at p<0.05 and 95%CI as significant. Results: Total prevalence of alcohol, betel nut and cigarette consumption in study population was 88%. The prevalence of individual alcohol, betel nut and cigarette consumption were 82%, 68% and 79% respectively. Combined alcohol, betel nut and cigarette prevalence in study population was 58%. Alcohol and cigarette users were significantly higher (p<0.001) in 30 to 40 years age group with lower level of education having poor attitude towards health promoting behaviour, poor oral hygiene practices and rare indulgence in regular physical exercise. Conclusions: This study stimulate further research on exploring methods to prevent initiation of health risk behaviour and promote healthy behaviour with cessation help for the current alcohol, betel nut and cigarette users.

Metabolic Syndrome and Colorectal Cancer: A Cross-Sectional Survey

  • Forootan, Mojgan;Tabatabaeefar, Morteza;Yahyaei, Mansooreh;Maghsoodi, Nakisa
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권10호
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    • pp.4999-5002
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    • 2012
  • Introduction: There is epidemiological evidence indicating that the metabolic syndrome increases the risk of colorectal cancer. Since there is little information about this issue in Iran, the present study was conducted to evaluate prevalence of metabolic syndrome and its components in patients with colorectal cancer. Material and Methods: This cross-sectional survey involved 200 patients with a new diagnosis of colorectal cancer. Demographic information of patients was collected through the interview with them. Components of metabolic syndrome including fasting glucose serum, triglyceride, high density lipoprotein, blood pressure and waist circumference were measured for all of the patients. Results: A total of 72 colorectal cancer patients (36%) met metabolic syndrome criteria with rates of 76% for women and 24% for men. BMI in metabolic syndrome patients was higher than other colorectal cancer patients. Disease history including hypertension, diabetes and cardiovascular disease was most frequent in metabolic syndrome patients. Pathological characteristics of colorectal cancer were not significantly associated with the disease. Conclusion: The findings of present study indicated that the prevalence of metabolic syndrome in CRC patients is relatively high. Therefore, further analytical and multi centric studies are needed to better understand the role of metabolic syndrome in development of CRC in Iran. If this association is confirmed in future studies, metabolic syndrome patients should be considered in CRC screening programs.

비네트를 활용한 한국 물리치료사의 임신 관련 허리통증 환자에 대한 치료실태 조사연구 (Current Management for Pregnancy-related Low Back Pain by Korean Physical Therapists: A National Cross-sectional Survey Using the Vignette Method)

  • 한희주;김선엽
    • 한국전문물리치료학회지
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    • 제27권1호
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    • pp.53-62
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    • 2020
  • Background: Pregnancy-related low back pain (PLBP) has fewer systematic guidelines than pregnancy-related pelvic girdle pain, previous studies have not evaluated physical therapy for this ailment in Korea. Objects: We aimed to provide a detailed account of clinical decision making by Korean physiotherapists while treating PLBP. Methods: In total, 955 questionnaires were distributed mainly in places of continuing education held by the Korean Physical Therapy Association from April to July 2019. The same questionnaire was posted on a website used by physiotherapists. We collected subject information, a specific Vignette typically represent symptoms of PLBP, and responses to multiple questions about decision making, subjective recognition and interest level in the field of women's health physiotherapy (WHPT). Results: The overall response rate was 56% (n = 537); of these, responses to 520 questionnaires were analyzed. Most respondents chose various combinations of physical therapy methods. There were significant differences in subjective recognition levels of WHPT according to gender (p < 0.05), age (p < 0.01), education level (p < 0.01), and clinical experience (p < 0.05). There were significant differences in interest according to gender (p < 0.01) and education level (p < 0.01). With respect to the types of treatment, significant differences were noted in selective rates for "manual therapy", "pain control", and "supportive devices" based on gender. Manual therapy tended to be chosen more with increasing age and clinical experience. With increased education level, there were fewer choices for the use of pain control. Conclusion: This is the first data on how Korean physiotherapists manage PLBP patients using the vignette method. We were able to recognize the Korean physical therapist's decision on PLBP patients, and observed statistically significant correlations. This may aid in developing future research and education plans in the WHPT field.

A cross-sectional survey of clinical factors that influence the use of traditional Korean medicine among children with cerebral palsy

  • Lee, Hye-Yoon;Yun, Young-Ju;Yu, Sun-Ae;Park, Yo-Han;Park, Byung-Wook;Kim, Bu-Young;Hwang, Man-Suk
    • Integrative Medicine Research
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    • 제7권4호
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    • pp.333-340
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    • 2018
  • Background: Traditional Korean medicine (TKM) is widely used to treat children with cerebral palsy (CP) in Korea; however, studies investigating factors that influence the use of TKM are scarce. Thus, we investigated the clinical factors that might influence the use of TKM. Methods: A population-based, cross-sectional, multicenter survey was performed from August 2014 to May 2016. The history of TKM use, type and severity of CP, current treatment characteristics, presence of accompanying disabilities or other health problems not directly related to CP, and monthly cost for the treatment of CP were surveyed. Results: In total, 182 children were recruited, and 78 children (42.9%) had used TKM. Among these 78 children, 50 (64.1% of the TKM-use group) had used both acupuncture and herbal medication, 15 (19.2%) had used acupuncture only, and 13 (16.7%) had used herbal medication only. Children with non-typical CP, accompanying disabilities and general health problems tended to use TKM. The monthly cost of treatment for CP was significantly higher in the TKM-use group than that in the no-TKM-use group, suggesting that economically disadvantaged children may have difficulty in accessing TKM. Dietary supplements, conventional pharmacological treatments, and rehabilitation therapies did not affect TKM use. Conclusion: Children with non-typical symptoms or those with poor overall health status are likely to use TKM. Additionally, TKM use leads to increased treatment costs. Studies investigating the motivation for starting or ceasing TKM therapy, socioeconomic factors and the attitude of parents towards complementary and alternative medicine should be performed.

트럭경량화를 위한 Deck Frame의 수치해석 연구 (Numerical Analysis of Deck Frame for Lightweight Trucks)

  • 윤성우;고선호;김홍건;곽이구
    • 한국기계가공학회지
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    • 제17권3호
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    • pp.127-133
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    • 2018
  • To reduce fuel consumption, research on the weight reduction of vehicles is being actively carried out. Researchers have typically tried to replace metal materials with composites materials, but these materials did not satisfy the required strength and rigidity of a vehicle. Composites are usually not used because of their high cost. There are incomplete studies on lightweight trucks that transport cargo. Therefore, in this paper, we enhance the lightness and mechanical strength through design optimization of the deck frame for a lightweight truck. For that purpose, the side member and cross member, which are mounted on the lower part of the truck to assure the safety of the vehicle and support the luggage load, were targeted. The result of numerical analysis on the safety of the frame was obtained by changing the shape of each cross-section. To verify the numerical analysis, we compared it with the theoretical value of a cantilever beam. As a result, the suitability of the cross-sectional shapes of each frame was confirmed through numerical analysis.

Three Dimensional Characteristics of the Airflow in Unidirectional Vehicle Tunnels

  • Kim, Sang-Hyun;Kim, Doo-Young;Choi, Pan-Gyu;Lee, Chang-Woo
    • 한국암반공학회:학술대회논문집
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    • 한국암반공학회 2008년도 국제학술회의
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    • pp.287-300
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    • 2008
  • Airflow distributions along tunnel and over the cross section are critical in selecting installation location of the velocity monitor to obtain the representative data for ventilation as well as fire safety systems. This paper aims at performing CFD and on-site studies to analyze the longitudinal and cross-sectional distributions of the air velocity in tunnels employing longitudinal and semi-transversal ventilation systems. This study can ultimately contribute to selecting the monitor type as well as the optimal installation locations in vehicle tunnel.

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Design optimization of the outlet holes for bone crystal growing with bioactive materials in dental implants: Part I. cross-sectional area

  • Lee, Yong Keun;Lee, Kangsoo
    • 한국결정성장학회지
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    • 제23권2호
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    • pp.67-75
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    • 2013
  • In order to improve osseo-integration of a dental implant with bone crystal we studied an implant with holes inside its body to deliver bioactive materials based on a proposed patent. After bioactive material is absorbed, bone crystal can grow into holes to increase implant bonding in addition to surface integration. The larger cross section area of outlet holes showed the less values of the maximum stress, and the stress concentrations near the uppermost outlet holes were also reduced with an increasing number of outlet holes. The conclusion, that the uppermost outlet design improvement was most effective to reduce the stress concentration and improve the growth rate of bone crystal, could be drawn. After the design optimizations, Type 6-C had provided the best results in this study. The overall shape optimization studies on the shape, location, number, and so on, of the outlet holes, should be carried out further.

정신과 연구에서 다양한 임상연구방법의 장단점 (Pros and Cons of Various Research Designs in Clinical Psychiatry)

  • 하라연;조현상
    • 생물정신의학
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    • 제19권4호
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    • pp.159-163
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    • 2012
  • An appropriate research design for hypotheses and purposes leads to a good quality of research results. In this review article, we summarized the types of research methods and described the characteristics of clinical trials. Research designs are categorized into observational studies and experimental ones, depending on data collecting methods. In an observational study, there are cross-sectional, cohort and case-control studies. Parallel groups design and crossover trial studies are representative designs in a randomized controlled trial study, a kind of experimental study. Clinical researchers should understand the characteristics of clinical research designs including advantages and disadvantages and choose the suitable design according to their study purposes and the nature of collected data or subjects.