فهرست مطالب مهدی هادی پور

This study for evaluation the effect of some plant growth retardants on growth and development parameters of Dahlia spp. as a completely randomized design experiment with 10 treatments, 3 replication and each treatment with 3 plant, a total 90 pots were conducted. Treatments includ Paclobutrazol with three levels 50, 75 and 100 ppm, Daminozide and Cycocel with three levels 500, 750 and 1000 ppm and the pot was without spraying as a control. Treatments were applied when the plants had 8 to 15 true leaves and after treatments, sampling and evaluation of traits were performed about 60 days after spraying. The studied traits include air and root fresh and dry weight, longest root length, plant length, number of flower, anthocyanins of petals and total chlorophyll of leaf content and flowering period. The results showed that the most of air fresh weight, anthocyanins of petals content and flowering period and the lowest number of flower was in Cycocel 1000 ppm. The most of root dry weight and the lowest plant length was in Paclobutrazol 100 ppm. Also the most air dry weight in Daminozide 750 ppm, the most root fresh weight and longest root length in Paclobutrazol 75 ppm, the most total chlorophyll of leaf content in Daminozide 1000 ppm, the most number of flower in Daminozide 5000 ppm and the most plant length was in control treatmen

Astragalus hamosus L. is an annual, herbaceous belonged to Leguminosae family. Understanding the pattern of plant species diversity is important in breeding programs and leads to awareness of evolutionary processes. This study was conducted on protein diversity of the ecotypes of this plant species. According to the protein variation analysis of A.hamosus, the polymorphism index content (PIC) was calculated as 0.49. Cluster dendrogram was drawn using Dice similarity coefficient and UPGMA method. The ecotypes were classified into three subgroups with cophenetic correlation coefficient 0.88. Out of the 13 ecotypes, 11 were grouped together with relatively high similarity. Kermanshah ecotype no1 was significantly separated from other ecotypes. According to the results of the expression of seven peptides studied in 13 ecotypes, the highest and lowest cumulative expression levels belonged to peptides6 and 7 with 24195 and 4328 units by PhoretixPro software, respectively. Based on biplot analysis, the highest expression of peptides in all different ecotypes was related to peptide 4 of Kermanshah ecotype 2. Peptide 7 was not expressed in any other ecotypes, even at very low levels. It was concluded that a new protein was added to the protein profile of A. hamosus in the Kermanshah ecotype with the emergence of this peptide.

Herpes Simplex Virus infection (HSV) is one the most frequent causes of oral Lesions. Therefore a one year follow up study was carried out on patients attending to the Oral Medicine Dept. of Mashhad dental school, and Dermatology Dept. of Mashhad Ghaem Hospital. report of 4 patients was also done to determine the orofacial features of HSV infection. We filled out a questionnaire for each of the patients who had Acute Primary and Recurrent Herpes simplex infection to get information about the frequency of different types of HSV infection, routes of transmission, demographic distribution, site of lesions, constitutional symptoms, predisposing factors, the course of recovery of the lesions and the potential role of the polio vaccine on HSV infection. (From March 1997 to March 1998) Our one year study revealed that primary and recurrent HSV infection occurs in all ages and has the same classic clinical features. This study indicates that orofacial HSV infection could be diagnosed by its clinical view and is treated easily. Another study about the efficacy of polio vaccine on H.S.V. is recommended. x

ِAmong several cephalometric analyses used in orthodontics, none of them could present all diagnostic and interpretative featwres. The aim of this study is to apply a simple and convenient approach which could enable the orthodontists to gain maximum information from it. Cephalograms of 58 adults patient (40 femals and 18 males) with mean age of 15 years and 4 months, were used for analysis. After tracing, the relationship between mandibular plane and the most inferior point of posterior cranial fossa was assessed. The data revealed that: - SNA and SNB were less than norms which was not significant. - In patients with normal facial height, extention of mandibular plane lay lower to posterior cranial fossa and the mean distance was 6. 84 mm. - Mp-Ar-N Angle was 42º to 55º (49 ± 6) that was 2º less than Norms. Extention of mandibular plane to posterior cranial fossa or lower, shows that there is a failure in vertical growth.