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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Education Experiences
- نوع مقاله: Journal Article
- کلمات کلیدی: comparative study,Educational Opinion,Comenius,Basic Transformation Document,Iranian Education
- چکیده:
- چکیده انگلیسی: The purpose of this study was to compare the thoughts of Comenius with the document of the fundamental transformation of the education of Iran. The present study, considering the subject and the research axis, was a kind of qualitative research and used conceptual, comparative and inferential analysis. Research scope in this research includes all texts, researches and documents related to the principles, goals and components of education that have been extracted from the available resources in relation to research in the educational system of Islam and the West. The results of the research indicate that Comenius educational ideas correspond to the transformation document in some parts; Comenius was a divine scholar who believed in God. Also, with the comparative study of Comenius Educational Opinion and the fundamental transformation document, it is concluded that there are differences and commonalities between these two
- انتشار مقاله: 29-02-1396
- نویسندگان: Alireza Dehghani,Seyyed Hashem Golestani,Seyyed Hossein Vaezi,Zohreh Saadatmand
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Dentistry, Shiraz University of Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی: oral squamous cell carcinoma,salivary glands,Mucoepidermoid carcinoma,Mel-CAM
- چکیده:
- چکیده انگلیسی: atement of the Problem: Mel-CAM (CD146, MUC18) is a 113-kD heterophilic cell-cell adhesion glycoprotein found in normal and tumoral tissues.
Purpose: The aim of this study is assessing the expression of Mel-CAM in common oral carcinomas like salivary gland mucoepidermoid carcinoma (MEC) and oral squamous cell carcinoma (OSCC) to differentiate the OSCC from high-grade MEC.
Materials and Method: This study was performed on 19 specimens of MEC and 17 specimens of OSCC, which were retrieved from the archive of Department of Pathology of Taleghani Hospital, Tehran, Iran. Immunohistochemical staining was performed by using antibody against CD146. The data was analyzed by using SPSS software through Mann-Whitney, Spearman's correlation coefficient, and Kruskal-Wallis tests.
Results: Mel-CAM was expressed in all MEC samples and 10 OSCC cases. The two groups were significantly different regarding the CD146 expression (p = 0.035). Furthermore, the CD146 expression was found to be significantly correlated with the invasion mode (p = 0.002), tumor size (p = 0.012), and histologic grade (p = 0.024) in OSCC group. No significant correlation existed between the expression, intensity and location with the histologic grade of MEC (p > 0.05). Nor was any significant correlation detected between the CD146 expression and lymph node metastasis in neither group.
Conclusion: Regarding the significant correlation between the CD146 expression and the prognostic factors in OSCC, this marker may predict the prognosis in OSCC patients, but not the MEC lesions. It cannot be used for differentiating high-grade MEC and OSCC.- انتشار مقاله: 26-09-1397
- نویسندگان: Nafise Shamloo,Nasim Taghavi,Samira Behrad,Ali Dehghani Nazhvani
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Dentistry, Shiraz University of Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Statement of the Problem: After introducing digital radiography, practitioners started reading radiographs from computer monitors; however, many still prefer hard-copy radiographs.Purpose: This study aimed to assess the possible superiority of either type of radiograph recording media (computer monitor, film, or paper) in diagnosis and perception of the depth of the cariogenic lesions.Materials and Method: Twenty digital bitewing radiographs, obtained from 200 posterior extracted teeth, were displayed on an LG monitor and printed on paper and film using Kodak printers. Two observers independently measured lesions depth on the images. Serial sections of teeth were obtained and the sections were evaluated by a stereomicroscope to determine the actual depth of cariogenic lesions. The efficacy of the each medium was assessed by determining its specificity and sensitivity in comparison with those of histological images. Weighted kappa coefficients and the ROC analysis were used for the statistical analysis.Results: Strong intra- and inter-observer agreements (0.818 to 0.958, 0.77 to 0.85) were found for all detection methods. The highest Az value was obtained with the monitor-displayed images (Az: 0.879); however, differences between detection methods were not statistically significant (p> 0.05).Conclusion: Monitor-displayed bitewing radiographs, paper, and film prints used in our study performed similarly in the detection of proximal caries.Key Words Dental caries; Film; Paper; Bitewing radiography;
- انتشار مقاله: 03-12-1395
- نویسندگان: Sadaf Adibi,Anita Amrollahi,Ali Dehghani Nazhvani,Najmeh Movahedian
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Dentistry, Shiraz University of Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Statement of the Problem: Odontogenic keratocyst (OKC) is a developmental odontogenic cyst with specific histopathological features, high recurrence rate, and aggressive clinical behavior. Angiogenesis might be considered as an important factor for the growth, expansion, and distribution of this lesion.Purpose: The aim of the present study was to determine the mean vascular densities (MVD) of OKCs and dentigerous cysts to evaluate their relationship with the biologic behavior of these lesions.Materials and Method: In this cross-sectional analytical study, angiogenesis was assessed in OKC and dentigerous cyst by measuring the MVD. Immunohistochemistry was carried out using CD34 and CD105. The results were analyzed with independent samples t-test. The data were analyzed, setting p value at 0.05.Results: The MVDs with the use of CD34 and CD105 markers were significantly higher in OKC compared to dentigerous cyst (p< 0.05). In addition, MVDs obtained by CD105 in dentigerous cysts and OKC were significantly less than those based on CD34 (p< 0.05).Conclusion: Based on the results of the present study, it can be suggested that angiogenesis might be one of the possible mechanisms involved in higher aggressive biologic behavior and greater recurrence rate of OKC compared to dentigerous cysts.Keywords ● CD105 ● CD34 ● Dentigerous cyst ● Immunohistochemistry ● Odontogenic keratocyst
- انتشار مقاله: 23-11-1394
- نویسندگان: Shokoofeh Jamshidi,Massoumeh Zargaran,Ghodratollah Roshanaei,Fatemeh Hadadi,Ali Dehghani Nazhvani
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Dentistry, Shiraz University of Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Statement of the Problem: Fixed retainers were developed to maintain incisor alignments after orthodontic treatments. Although the effects of fixed retainers on periodontal health are clinically studied, no studies have still evaluated the histological changes in the periodontium after the placement of thefixed retainers.Purpose: The aim of this study was to evaluate the effects of customised retainers on periodontium histologically.Materials and Method: Forty pairs of maxillary and mandibular central incisors of twenty rabbits were randomly divided into four equal groups: The first group was considered as the control and in the second group, Fiber Reinforced Composite (FRC), in the third group, 0.014 inch stainless steel (SS) wire and in the fourth group, 0.175 inch multistrand stainless steel (MSS) wire were bonded on the labial surfaces of the incisors. After sixty days; animals' periodontium were evaluated histologically.Results: The number of bone resorption lacuna in the control group was significantly less than FRC and 0.014 SS groups. The periodontal vessel count and their diameter in the control group was significantly lower than the other groups. The pulp vessel count and their diameter in controls were significantly more than the 0.014 SS and the 0.175 MSS groups.Conclusion: Findings of this study suggest that FRC fixed retainer might cause detrimental effects on the periodontal ligaments and supporting bone and the 0.014- inch and 0.175- inch fixed retainers can cause hyalinization and possibly the necrosis of the pulp.Key Words: Fixed orthodontic retainers; Periodontium; Histology; Rabbits
- انتشار مقاله: 17-04-1393
- نویسندگان: Morteza Oshagh,Somayeh Heidary,Ali Dehghani Nazhvani,Fatemeh Koohpeima,Omid Koohi Hosseinabadi
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Dentistry, Shiraz University of Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Statement of the Problem: Alveolar bone necrosis induced by Herpes zoster infection is considered as a rare manifestation of osteomyelitis and few case reports are presented in the literature.Purpose: The aim of this study was to evaluate mandibular osteomyelitis caused by herpes zoster in the immunocompromised patients with histopathologically documented osteomyelitis in the mandible and herpes zoster infection.Materials and Method: 30 patients were recruited in this cross-sectional study. 19 patients were completely edentulous, 4 patients were partially edentulous and 7 with complete dentition. In all cases, specimens were analyzed using a conventional polymerase chain reaction (PCR) test for varicella zoster virus. Results: 16 patients underwent dialysis, 9 patients received chemotherapy treatments and 5 patients had transplantation (four kidneys and one liver). Histopathological assessment demonstrated a nonspecific bone necrosis exhibiting an eosinophilic, homogeneous non-vital bone tissue with peripheral resorption surrounded by reactive connective tissue. PCR test was positive in 21 cases.Conclusion: This study demonstrated that the frequency of osteomyelitis induced by herpes zoster could be more than the records provided by previous studies. Histopathological findings might be nonspecific in such patients. PCR test was not positive for all HZ induced osteomyelitis patients.Key Words: Zona; Osteomyelitis; Mandible; Herpes zoster
- انتشار مقاله: 17-04-1393
- نویسندگان: Reza Tabrizi,Ali Dehghani Nazhvani,Amir Vahedi,Mehdi Gholami,Raziyeh Zare,Raha Etemadi Parsa
- مشاهده
- جایگاه : پژوهشی
- مجله: journal of crop nutrition science
- نوع مقاله: Journal Article
- کلمات کلیدی: dry weight,Manure,Organic farming
- چکیده:
- چکیده انگلیسی: Basil belongs to the Lamiaceae family, is one of the most important aromatic and medicinal plants, which it widely cultivated in many countries. The areal parts, especially leaves of sweet basil are widely used to enhance the flavor of foods such as salads, pasta, tomato products, vegetables, pizza, meat, soups, marine foods, confectioneries and other products. This study was conducted to investigate the response of basil to different fertilizers (chemical and organic). Treatments consisted of different fertilizers including: F1=C (Control, without any fertilization), F2= CM (Cow manure 20 t.ha−1), F3=CM+CF (Cow manure 20 t.ha−1 + chemical fertilizers), F4= CM+CF (Cow manure 10 t.ha−1+ chemical fertilizers), F5=CF (Chemical fertilizers, N.P.K), F6= VC (Vermicompost). This experiment conducted on randomized complete block design with three replications in Saman city, Southwestern Iran. Morphological traits and essential oil yield of the aerial parts of sweet basil (O. basilicum) were studied. From the results, it can be concluded that the application of different fertilizers has an influence on morphological traits, essential oil yield of the aerial parts of sweet basil. The highest values for plant height and dry weight (kg.ha-1), were observed with application CM (cow manure 20 t.ha−1), CM+ CF (cow manure 20 t.ha−1 + chemical fertilizers), respectively. Among different fertilizer, the essential oil yield exhibited the greatest amount in CM+ CF treatment. In finally, the application of integrated manures mixture of organic (cow manure) and chemical fertilizer (20 t.ha-1) can cause to improvement dry matter yield and essential oil content in sweet basil.
- انتشار مقاله: 04-10-1395
- نویسندگان: Jalil Dehghan Samani,Abdollah Ghasemi Pirbalouti,Fatemeh Malekpoor
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Advances in Medical Education and Professionalism
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Introduction: Clearly, there are some challenges and difficultiesin fulfilling social accountability which should be identified anddealt with in order to reach the ultimate goal. The main objectiveof this study was to identify the challenges associated with socialaccountability.Methods: In this qualitative study, focus groups and in-depthsemi-structured interview were used to obtain the opinions andexperiences of 35 people with 4 focus groups of students, facultymembers, patients and their companions in Jahrom University ofMedical Sciences. Purpose-based sampling was performed. Theparticipants asked “What is social accountability?” And thenit continued with the more specific question, i.e. “What factorsincrease or decrease social accountability?” After identifying thecategories and sub-categories, conventional content analysis wasused to analyze the data.Results: Overall, 97 codes were extracted from the text and fivemain categories were revealed: notification, sense of responsibility,practical education, and professional status and ethics.Conclusion: Since there are numerous challenges in the field ofsocial accountability, it is essential that we understand the challengesand barriers and take effective steps to implement reforms.Keywords: Social accountability; Qualitative research; Professionalism; Ethics
- انتشار مقاله: 03-07-1395
- نویسندگان: MASUMEH SANAII,LEILI MOSALANEJAD,SAIDEH RAHMANIAN,ALIREZA SAHRAIEYAN,ALI DEHGHANI
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Advances in Medical Education and Professionalism
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Introduction: The present study aimed to find an appropriate method toinform senior high school students to correctly select their academic field ofstudy and their intentions.Methods: This is a descriptive-analytic and cross-sectional study. A verifiedquestionnaire was given to a total of 2600 students selected by stratified random sampling method (ten different colleges and entrance year from the 1st to 4th are considered as the strata). The position of the present field of study (major) among the list of the fields in the entrance exam was asked. The students’ methods of familiarity with different fields of study in Shiraz University of Medical Sciences (SUMS), the reasons for their selection, the students’ motivation and insistence on studying in the same field and university were asked in the questionnaire. Data were analyzed using independent two samples t-test, Analysis of Variance (ANOVA) and Chi-Square test.Results: The most significant references for university field selection were high school teachers, the students' parents and the adjacency of university to one's living place. Also, the results revealed the good reputation of SUMS in the first year and its downward trend during the following years. 59.4% of the 1st year students were satisfied with their field of study and SUMS. 31.8% were satisfied with the university but not with their fields of study. 6.4% were dissatisfied with the university but not with their fields of study. 2% of the students were dissatisfied with both their fields of study and university. Dissatisfaction with SUMS and field of study increased little by little so that the results obtained among the students who had entered the university earlier (in the 4th year of their study) showed nearly 16.3% dissatisfaction with both the university and the study fields .Conclusion: The methods for introducing the university are recommended tobe revised.Keywords: Medical student, Intention, Satisfaction
- انتشار مقاله: 07-07-1393
- نویسندگان: ALI NOORAFSHAN,SAEEDEH POURAHMAD,MOHAMMAD MAHDI SAGHEB,ALI DEHGHANINAZHVANI,ALI DEHSHAHRI,MANIJEH ABDOLLAHI,ZEYNAB MOHEBBI,ZAHRA KESHTKARAN,AFSANEH AHMADI,SOMAYEH KAVOUSIPOUR,FARIBA FARAHMAND,HAMIDREZA KHORRAMI,ROBABEH SOLTANI,SAIED KARBALAY DOUST
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Advances in Medical Education and Professionalism
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Introduction: Many studies have investigated the relationshipbetween motivation and educational outcomes. The present studywas conducted to determine whether the students’ motivation inShiraz University of Medical Sciences (SUMS) decreases duringeducational years.Methods: 770 students in SUMS were selected by multi-stage stratifiedrandom sampling from each field and entrance year. The firstquestionnaire contained 57 questions on the effect of economic, social,educational, geographical and personality factors on the students’motivation. The second one was based on 50 incomplete sentences.The validity and reliability of these questionnaires were approvedby the experts and Cronbach’s Alpha coefficients (85% and 90%,respectively). In this cross-sectional study, ANOVA, t-test and Chisquaretests were applied for data analysis at the 0.05 significance level.Results: Six factors with the most effect on academic motivationwere “family attitudes”, “getting good jobs in future”, “respect forthemselves”, “ the ability to learn”, “believing their role in victory anddefeat” and “the tendency toward optimism about themselves”. Inaddition, comparing professional doctorate and basic sciences’ resultsrevealed no significant relationship between academic motivationand educational years (F=0.819, p=0.397). But comparing field byfield showed that Dentistry and Hospital Management and MedicalInformation (HMMI) had a significant decrease in motivation scoreby increase in educational years (F=3.991, p=0.015).Conclusion: Achievement motivation level in SUMS studentswas higher than average and did not decrease during educationalyears. Also, the results showed that personal, social andeducational related factors affected motivation level more thaneconomic and environmental factors.
- انتشار مقاله: 10-10-1393
- نویسندگان: SOMAYEH KAVOUSIPOUR,ALI NOORAFSHAN,SAEEDEH POURAHMAD,ALI DEHGHANINAZHVANI
- مشاهده