• 대한산업공학회지
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• 제29권3호
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• pp.190-196
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• 2003

We consider the problem of scheduling n jobs on m machines with the objective of minimizing makespan. Each job cannot be eligible to all the machines but to its consecutively eligible set of machines. For this problem, a 2-approximation algorithm, MFFH, is developed. In addition, an example is presented to show the tightness of the algorithm.

• 한국산학기술학회논문지
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• 제22권2호
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• pp.610-616
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• 2021

본 연구는 마을 향약의 내용 중 이장선출 규정을 분석하여 문제점을 파악하고 개선방안을 제시하기 위한 문헌연구다. 자료수집은 2019년 1월부터 2019년 8월까지 총 146개 마을의 향약을 수집하여 분석하였다. 분석 결과, 민주적인 절차를 통해 마을주민들이 직접 이장을 선출하고 있는 마을이 많은 것으로 분석되었다. 개선방안으로 선거권에서는 성평등한 참여와 참정권 보장을 명문화할 수 있도록 1세대 1표제의 선거권을 1인 1표제로 개선을 제언하였다. 임용 방법에서는 첫째, 마을 출생자가 아니면 이장 후보자가 될 수 없는 이장 후보자에 대한 자격 개선, 둘째, 각종 재해 발생 시 신체적 능력과 마을사업 수행에 따른 활동성 요구로 이장 후보자의 나이를 65세 이하로 나이 상한 지정, 셋째, 지역 토착 세력으로 자리할 수 없도록 이장이 임기를 후임자가 없는 경우 연임이 가능하다는 이장연임 규정 제한, 넷째, 마을 발전이라는 공공적 이익에 충실할 수 있도록 봉사자로서의 위상 정립을 위한 교육 필요성을 제언하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권9호
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• pp.4699-4701
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• 2012

Objective: To explore the effect of portal vein chemotherapy on liver metastasis after surgical resection of colorectal cancer. Methods: Patients fulfilling the eligibility criteria were assigned to receive either surgery plus 1-week continuous infusion of 5-FU (study group) or surgery alone (observational group). Patients in the study group received portal vein chemotherapy, whereby 5-FU (1000 mg/d) and heparin (5000 IU/d) infusion was initiated from the day of surgery and lasted for 7 consecutive days. Liver metastasis was monitored during five years follow-up postoperatively. Results: Sixty four patients were recruited and assigned to the study group (12 with colon and 20 with rectal cancer) or the control group (10 with colon and 22 with rectal cancer). Liver metastasis rate was 12.5% in study and 25.0% in observational group, the difference being significant (P<0.01). Conclusion: Portal vein chemotherapy could be an effective treatment in preventing liver metastasis after surgical resection of colorectal cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제14권10호
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• pp.6085-6088
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• 2013

Prostate specidic antigen (PSA) and digital rectal examination (DRE) are the known predictive factors for positive prostate biopsies differing according to the age, region and race. There have been only very limited studies about the impact of PSA on histological findings at prostate biopsy in Turkey. The aim of this study was to evaluate the impact of PSA and clinical stage on histologic findings of prostate biopsy in men older than 75 years of age as a first study in the Turkish population. A total of 1,645 consecutive prostate biopsies were included, with 194 men aged 75 or older. Cancer was identified in 104 patients (53.6%). Of the 104 positive biopsies, Gleason scores were less than 7 in 53 (49%) patients, 7 or greater in 51 (51%) patients. Positive prostate biopsies were significantly correlated with advanced age (p=0.0001), abnormal DRE (p=0.0001) and raised PSA (p=0.0001). The prostate volume was significantly correlated with advanced age especially in prostate cancer patients over 75 years, compared with those under 75 (p=0.0001). These results are useful for counseling men older than 75 years for prostate cancer detection. However, PCa screening decisions are currently based on urologist judgment and detection of latent asymptomatic disease is an important concern regarding costs, overdiagnosis, overtreatment and quality of life (QOL) for men aged 75 years and older. Healthy old patients with a long life expectancy need to be carefully evaluated for eligibility for PCa screening.