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Search Results: 1 - 10 of 144908 matches for " F. Pour-Hasani "
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A Two-Stage Rumen Cannulation Technique in Sheep
Saeed,Azizi,R. Pir-Mohammadi,F. Pour-Hasani
Journal of Animal and Veterinary Advances , 2012,
Abstract: This experimental study was carried out to describe and evaluate a modified two-stage technique of rumen cannulation in sheep. Ten healthy, castrated, Makoyee sheep with no previous history of gastrointestinal dysfunction were chosen. The surgical technique was performed in two stages. In the first, a 5-cm vertical incision was made in the mid paralumbar fossa. The incision was continued through the subcutaneous. Then the muscular layers of the abdominal wall were divided in the grid technique. The dorso- lateral portion of the dorsal sac of rumen was anchored to the skin by application of four interrupted horizontal mattress suture at 4 points circumferentially using No. 1 silk. In the second, the exposed rumenal wall was incised longitudinally at the mid part of the stay sutures. A rubber-sheep cannula was inserted into the opening and then fixed with an external elastic washer. To augment the cannula stability, the inner flange was also reinforced with a tough rubber washer. All the sheep had normal behavior and appetite during the experiment. In the follow up period no local inflammation, infection, hemorrhage, tissue flap necrosis, wound dehiscence; and suture abscess encountered in the surgical site. Neither evidences of anorexia, toxemia, septicemia and peritonitis were detected. No sign of intra peritoneal infection was observed on inspection of carcasses. The sheep did not lose weight significantly and the cannulas remained permanent fixed in position in 9 cases. This modified ruminal cannulation technique could be considered as a useful alternative with less failure and no more adverse consequences. Furthermore, the technique might be recommended to veterinary scientists who deal with experimental studies on sheep nutrition and husbandry.
Study of the Relationship between Hopefulness and Self- Esteem in Renal Transplant Recipients at Imam Reza Hospital, Mashhad, Iran, 2002-03
T Pour Ghaznain,F Ghafari
Journal of Shahid Sadoughi University of Medical Sciences , 2005,
Abstract: Introduction: The purpose of this study was to study the relationship between hopefulness and self esteem in patients posted for renal transplants Methods: In this correlation – descriptive study, a sample of 80 renal transplant recipients was studied. The instruments used included: The sample selection, demographic data, The Herth hope index and Cooper Smith’s self - esteem inventory. Results: The findings indicated that 45 percent of patients had a low level of hope; also, level of hope significantly correlated with self- esteem (r= 0.84 p= 0.0001) and religious beliefs. (r= 0.52 P= 0.0001). Other selected variables were not significantly correlated with the level of hope. Conclusion: The results showed that all patients receiving renal transplants have a relatively lower level of hope which can be raised by increase in self esteem, strengthening of religious beliefs and highlighting the importance of high level of hope to the patients.
Evaluation of mercury vapor in dental offices in Tehran
Hasani Tabatabaei M.,Golbabaei F.,Shariati B.
Journal of Dental Medicine , 2007,
Abstract: Background and Aim: Dental Amalgam is a common restorative material for posterior teeth. Because of Hg content in the composition of amalgam, during the handling of material, mercury may release as vapor in the environment. Excess amount of mercury vapor can cause serious health problems in dental personnel. The aim of this investigation was to determine mercury vapor concentration in working environment of dentists in Tehran. Materials and Methods: 211 dental clinics were participated in this cross-sectional study. The clinics were randomly selected from different regions of Tehran (north, center, south, east and west). The dentists were asked to complete a questionnaire including items on demographic characteristics such as age, sex and work history, method of handling of amalgam, environmental characteristics and general health conditions. Environmental measurements of mercury vapor in dentists’ offices were done by mercury absorption tubes (Hydrar) and personal pumps (SKC, 222-3, England) as suggested in NIOSH method. Analysis of air samples was done by atomic absorption spectrophotometery (cold vapor). The data were analyzed by non-parametric tests (Kruskall Wallis, Mann-Whitney and Kendall).P<0.05 as the level of significance. Results: The mean mercury vapor concentration in dentists’ offices was 8.39(±9.68) μg/m3.There was no significant relationship between the urine mercury of dentists (3.107±3.95) and the air Hg vapor concentration of their offices. Using precapsulated amalgam showed significantly less Hg vapor than bulk amalgam (P=0.034). Also the surface area of working room and air Hg vapor (P=0.009) had a significant relationship (P=0.009 r=0.81). There was not any significant correlation between mercury vapor and other factors such as working hours per day and working days per week, squeezing of triturated amalgam or not, storage medium of set amalgam (water or fixer solution), mercury storage method and type of ventilation. Conclusion: The concentration of mercury vapor in dental offices' environment was lower than threshold limit value. Based on this study the type of amalgam (precapsulated or not) and area of the working room had significant effect on the mercury vapor concentration of environment.
The Frequency of Streptococcus Mutans and Lactobacillus spp.in 3-5-year- old Children with and without Dental Caries
Moulana, Z.,Ghasem Pour, M,Asghar Pour, F.,Elmi, MM
Medical Laboratory Journal , 2013, DOI: http://www.goums.ac.ir/mljgoums/index.php?&slct_pg_id=10&sid=1&slc_lang=en
Abstract: Background and Objective: The high occurrence of early childhood caries (ECC) is one of the most common problems in children dentistry. Streptococcus mutans and lactobacilli.spp are closely associated with the development of early childhood caries (ECC). Therefore, the aim of this study was to investigate the frequency of streptococcus mutans and lactobacilli.spp in 3-5 –year- old children with and without dental caries.Material and Methods: This case-control study was conducted on 60 children aged 3 -5-years, without any history of systemic disease, who had not received any antibiotic therapy and fluoride usage during the last month. The cases were divided into three groups of early childhood caries, usual caries and caries-free. The infected dentin samples were collected from cervical and proximal in ECC and usual caries group, respectively. Also in all the three groups, the samples of dental plaque from buccal surfaces were collected and immediately immersed into Brain Heart Infusion (BHI) broth medium. After that, the diluted sample was plated onto MitisSalivarius agar (Difco) for detecting streptococcus mutans and Rogosa agar (Difco) for detecting lactobacilli.spp. Data were analyzed by Chi- Square and ANOVA.Results: of the samples taken from dental plaque, S. mutans is observed in 90% of ECC, 80% of proxymolcarries and in 25% of caries-free individuals. Based on the results, the presence of S.mutans in the group of caries is significantly higher than that of without caries, but there is no significant difference between the two groups of caries. In addition, lactobacill.spp is isolated from 60% ofthe samples, but there is no significant difference between two groups of caries and caries-free. The average of decayed, missing and filled teeth (DMFT) index in the group with early childhood caries (6.95±1.572) and usual caries (5.80±1.105) is different significantly. Pearson correlation test shows that there is a significant relationship between caries experience and the amount of S.mutans, but there isn’t this relationship withlactobacill.spp. Conclusion: The findings show that the children with early decay have the higher level of S.mutans in their dental plaque. The most common strain isolated from dentin, without consideration of their location, is S.mutans. Key words: Early dental care, Dental caries, DMFT index, Streptococcus mutans, Lactobacilli.spp.
Some New Results about Trigonometry in Finite Fields  [PDF]
Amiri Naser, Hasani Fysal
Advances in Pure Mathematics (APM) , 2016, DOI: 10.4236/apm.2016.67035
Abstract: In this paper, we study about trigonometry in finite field, we know that \"\" , the field with p elements, where p is a prime number if and only if p = 8k + 1 or p = 8k -1. Let F and K be two fields, we say that F is an extension of K, if KF or there exists a monomorphism f:?KF. Recall that \"\", F[x] is the ring of polynomial over F. If \"\" (means that F is an extension of K), an element \"\" is algebraic over K if there exists \"\" such that f(u) = 0 (see [1]-[4]). The algebraic closure of K in F is \"\" , which is the set of all algebraic elements in F over K.
Effect of Hepatitis B Vaccination on Hbsag Status in Blood Donors
M Yahya pour,F Razjoo,GH Karimi
Journal of School of Public Health and Institute of Public Health Research , 2004,
Abstract: The purpose of this study was to evaluate the influence of hepatitis B vaccination on the results of surface antigen tests in blood donors. In this research, eighteen non-immunized volunteers (ten male, eight female) aged 21 to 58 years received 20 ug of the recombinant B vaccine (Heberbiovac-HB) intramuscularly. Blood samples were drawn from all volunteers before the first vaccine dose (day 0) and on days 1,2,3 and 7 after vaccination. HBSAg assessment was done by six different kits (Behring, organon, Diasorin, Equipar, Trinity, Radim ). In this study, seven (39 %) of the eighteen volunteers showed a positive HBSAg reaction, confirmed by the duplicate samples. The most positive reactions were obtained by trinity kit on day 5 and 7. We conclude that individuals recently vaccinated against hepatitis B may have positive tests for HBSAg and it is recommended that such persons defer all blood donations for at least 7 days.
Lateral and normal forces between patterned substrates induced by nematic fluctuations
F. Karimi Pour Haddadan,S. Dietrich
Physics , 2005, DOI: 10.1103/PhysRevE.73.051708
Abstract: We consider a nematic liquid crystal confined by two parallel flat substrates whose anchoring conditions vary periodically in one lateral direction. Within the Gaussian approximation, we study the effective forces between the patterned substrates induced by the thermal fluctuations of the nematic director. The shear force oscillates as function of the lateral shift between the patterns on the lower and the upper substrates. We compare the strength of this fluctuation-induced lateral force with the lateral van der Waals force arising from chemically structured adsorbed monolayers. The fluctuation-induced force in normal direction is either repulsive or attractive, depending on the model parameters.
The effect of curing units and methods on degree of conversion of two types of composite resins
Hasani Tabatabaei M,Mirzaei M,Ataei M,Motevaselian F
Journal of Dental Medicine , 2007,
Abstract: Background and Aim: Halogen lamp is the commonly used light source for composite photo polymerization. Recently, high power halogen lamps, LED and plasma arc are introduced for improving the polymerization. The aim of this study was to investigate the effect of conventional and high power halogen lamps and LED light curing unit on degree of conversion of two different composite resins.Materials and Methods: In this in vitro experimental study two halogen units (Coltolux 50 with the intensity of 330 mW/cm2 and Optilux 501 with two different operating modes of standard with the intensity of 820 mW/cm2 and Ramp with the intentsiy of 100-1030mW/cm2) and one LED light curing unit (620 mW/cm2) were used. The composites were hybrid (Tetric ceram) and nanofilled (Filteke supreme). Each materials/curing method contained three samples and degree of conversion (DC) was measured with FTIR. Data were analyzed statistically with one way and two way ANOVA, Tukey HSD. P<0.05 was considered as the limit of significance.Results: Tetric ceram revealed higher DCthan Supreme. Tetric ceram showed a significant decrease in DC when Coltolux 50 was used in comparison to LED and Optilux 501. The latters did not show significant effect on DC of this material. DC of Supreme polymerized with various curing modes was not significantly different.Conclusion: Based on the results of this study, degree of conversion in hybrid composites was higher than nanofilled. In comparison with conventional halogen lamp (Coltolux 50), high intensity halogen lamps and LED unit significantly lead to higher degree of conversion in hybrid composites.
The Comparison of Blood Sugar Values before & after Spinal Anesthesia with Lidocaine in Cesarean Sections
Movaseghi Gh.,Hasani V.,Imani F.,Alebuye M.R.
Qom University of Medical Sciences Journal , 2010,
Abstract: Background and Objectives: One of the metabolic responses to surgical stress indicates itself in serum glucose level changes. Some studies have shown that hypoglycemia occurs after spinal anesthesia. In this study, pregnant women’s blood glucose changes were measured before, during and after cesarean section under Lidocaine spinal anesthesia. Methods: The study was conducted as a pre-post clinical trial. Full term pregnant women, candidate for cesarean section having referred to Rasol Akarm Hospital and during 2007-2008, in Tehran, were enrolled. All women underwent similar spinal anesthesia with Lidocaine 5%. Their blood glucose levels were measured simultaneously with glucometer on three occasions (before, 0.5 hr after the beginning of anesthesia, and during recovery).Results: One hundred fifty four women enrolled in the study. The means of serum glucose level reduced after cesarean section. Although the mean of serum glucose level increased in recovery room, it was significantly less than the baseline level (P<0.001). Conclusions: Our finding showed that spinal anesthesia with Lidocaine reduced serum glucose level in women undergoing cesarean section.Keywords: Anesthesia; Spinal; Cesarean Section; Lidocaine; Blood Glucose; Hemodynamics.
Ect of Glutathion on resumpsion of Meiosi in-vitro Maturation, and development of immature Mouse oocytes
H. Eimani,F. Hasani,SA. Haeri,MH. Esfahani
Journal of Mazandaran University of Medical Sciences , 2005,
Abstract: Background and purpose : In this study the effects of glutathion on resumption of meiosis, in-vitro maturation and development of immature mouse oocytes was evaluated.Materials and methods : Immature oocytes recoverd from NMRI mouse strain (4-6 weeks) in four different experimental groups. Group 1 (control group): 345 immature oocytes were matured in MEM-α medium containing FCS 5%, group 1: 338 immature oocytes were cultured in MEM-α medium containing FCS 5% and 1mM glutathione, group 2: 237 immature oocytes curtured in MEM-α medium containing FCS 5%, 7.5 IuhCG, 100mIUrFSH and group 3: 327 immature oocytes were growed in MEM-α medium FCS5%, 7.5 IUhCG, 100mIUrFSH, 1mM glutathione. Fertilization and embryo development were done in T6 medium.Results : There were significant differences between in-vitro maturation rates (group 1: 59.71%, group 2: 79.28%, group 3: 52.74 and group 4: 70.22%) and resumpsion of meiosis (group 1: 74.20%, group 2: 92.88%, group 3: 74.26%, group 4: 86.20%) in different groups.Conclusion : The results of this study showed that glutathione (1mM) enhanced resumpsion of meiosis and in-vitro maturation and development of embryoes.
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