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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Iranian Journal of Optimization
- نوع مقاله: Journal Article
- کلمات کلیدی: Data envelopment analysis,Ranking,Common Set of Weights
- چکیده:
- چکیده انگلیسی: In models of data envelopment analysis (DEA), an optimal set of weights is generally assumed to represent the assessed decision making unit (DMU) in the best light in comparison to all the other DMUs, and so there is an optimal set of weights corresponding to each DMU. The present paper, proposes a three stage method to determine one common set of weights for decision making units. Then, we use these weights to rank efficient units. We demonstrate the approach by applying it to rank gas companies.
- انتشار مقاله: 03-06-1388
- نویسندگان: Alireza Amirteimoori,Sohrab Kordrostami
- مشاهده
- جایگاه : پژوهشی
- مجله: Asian Pacific Journal of Cancer Prevention
- نوع مقاله: Journal Article
- کلمات کلیدی: JC Virus,colorectal adenocarcinoma,Polymerase Chine Reaction
- چکیده:
- چکیده انگلیسی: Colorectal cancer is the most repetitious malignancies with high mortality worldwide. JC virus (JCV) is ubiquitous
Polyomavirus, with seroprevalence rates ranging from 70% to 90% in adult population. Recently the role of JCV have
been reported in many malignant tumors worldwide. The association of JCV was reported in patients with colon and
rectum cancers. Thus this study was conducted to evaluate the association of JCV DNA in patients with colon cancer
type Adenocarcinoma. Material and Methods: A total of 120 formalin-fixed paraffin-embedded tissue blocks samples
were collected including 20/40(50%) males, 20/40(50%) females patients with Colorectal Cancer(CRC), and 80 (50%
males, 50% females) patients with benign tumor as a control. DNA was extracted for all the samples. Nested PCR was
carried out for detection of Vp1/T-Ag junction genome in JCV genome by Nested-PCR assay. Randomly, PCR products
of 6 samples were sequenced to analysis the partial JCV DNA. The phylogeny tree was constructed to determine
homology identity with other JCV. Results: 4/40(10%) samples of test group and 10/80 (12.5%) of control samples
were positive for JCV DNA (P= 0.69). Out of 4 samples positive for JC DNA, 3(7.5%) were males and 1(2.4%) female
(P=0.29). The frequency of JCV DNA in age group> 50 years was 4/32(10%), while in age group (0%) (p= 0.29). Conclusion: prevalence of JCV DNA was among 10% patients with CRC and 12.5% benign tumors
(p=0.69). The distribution of JCV DNA was among 7.5% male and 2.5% female (p= 0.29). The frequency of JCV
DNA was among 10% cases of age group >50 years and 0% of age group protein expression might explain the increased risk of colorectal cancer and requires further investigation.- انتشار مقاله: 08-07-1397
- نویسندگان: Azadeh Haghi Navand,Ali Teimoori,Manoochehr Makvandi,Nilofar Nisi,Seyed Saeid Seyedian,Nastaran Ranjbari,Kambiz Ahmadi Angali,Hadis Keyani,Maryam Tabasi,Keyvan Pourjabari
- مشاهده