Evaluating the cutting rate (CR) of stones is important in the cost estimation and the planning of the stone processing plants. This research used regression models to estimate the stones’ CR based on their physico-mechanical characteristics. Stone processing factories in Mahallat City (Markazi province, Iran) were visited, and the CR of diamond circular saws was recorded on six different travertine stones. Next, the stone block samples were collected from the quarries for laboratory tests. Stones’ porosity (n), uniaxial compressive strength (UCS), and Schmidt hammer hardness (SH) were determined in the laboratory as their physico-mechanical characteristics. Correlation relationships of CR with physico-mechanical characteristics were evaluated using simple and multiple regression analyses, and estimator models were developed. Results showed that multiple regression models are more reliable than simple regression for estimating the stones’ CR. The validity of the developed multiple regression models was verified with the published data of one researcher. The findings indicated that these models are accurate enough for estimating the CR of stones. Consequently, the multiple regression models provide practical advantages for estimating the CR and save time and cost during the planning and design of the stone processing factories.

Background: The current study is to evaluate cardiovascular effects of anesthetic medications and volatile anesthetics on cardiac stress using cardiac stress index (CSI) and rate pressure product (RPP) and to determine which of them in useful in evaluating cardiac stress after comparing results obtained from each method.Materials and methods: 40 patients, 60-80 years old, who were all performed trans abdominal prostatectomy were studied. Patients were divided into two groups, half of patients were placed in group A and the other half in group B. The study was carried out as a blinded study. CSI was measured and evaluated in group A and RPP changes were studied in group B.Results: The mean CSI were 60.25±5.57, 63.05±5.54, 55.75±4.78 and 67.65±4.88 before anesthesia induction, after induction, before surgical incision and in recovery respectively. There was no meaningful difference.RPP mean in four above mentioned stages was 10.15±0.44, 9.9±0.69, 6.8±0.36 and 9.2±0.61 respectively. There was a meaningful difference between RPP in stages before anesthesia induction and before surgical incision (P<0.0001).Conclusion: Considering the obtained results from this study, it can be seen that even in noncardiac surgery, the stress level is high in patients in the stage before surgery. This figure was not clear in RPP index case and was not in accordance with CSI, which means CSI has been able to illustrate existing stress level better and efficiently.

Background: Skin disorders in neonates can be considered as determining concepts for prognosis and genetic counseling. So far, few studies have investigated the relative frequency of neonatal skin disorders. The present study aimed to investigate cutaneous lesions and their relationship with other variables in neonates hospitalized in the neonatal intensive care unit (NICU). Methods: This cross-sectional study was conducted on 403 neonates hospitalized in the NICU of Rasoul Akram Hospital in 2014. After selecting the patients via convenience sampling, data were collected from the medical records. Results: Of the 403 neonates, 366 (90. 8%) had no cutaneous lesions, while 37 (9. 2%) had cutaneous lesions. Among the latter group, 18 (48. 6%) cases were pathological. According to the results obtained, the gender, type of delivery, gestational age, and reason for hospitalization were not related to the presence of cutaneous lesions and their pathological status (P > 0. 05). Moreover, gender, gestational age, and reasons for hospitalization had no significant relationship with the lesion type (P > 0. 05). The type of delivery had a statistically significant association with the kind of cutaneous lesions (P = 0. 043). Conclusion: Cutaneous lesions in neonates hospitalized in the NICU were less frequent in the present study compared to those in other studies, which can be attributed to the retrospective nature and the lack of direct medical examination of patients.

Purpose: Globalization of computer use in the past two decades has increased the prevalence of musculoskeletal problems and different damages to computer users. Therefore, the present study aims to determine the prevalence rate of musculoskeletal damages and postural anomalies and disorders among computer users.Methods: This is a descriptive research study carried out as a field project on 160 university students with 3 years of experience working with computers. The data were collected using a questionnaire developed by the researcher, which was of high reliability and validity. Moreover, for evaluation of the changes in postural alignment, the New York posture rating chart was used. Data analyses were performed by using descriptive statistics, which was done using Excel software and SPSS version 21.0.Results: The findings of this study revealed that the participants suffered from pain in the head (81.25%), eyes (87.50%), neck (100%), shoulders (100%), waist (81.25%), wrist (100%), fingers (100%), pelvis (93.75%), and knees (100%). Risk factors such as not using suitable chairs, incorrect way of sitting, and lack of movement (i.e. inactivity during work) were of great significance. Moreover, the findings of this research indicated the following as the prevalent postural anomalies among university students: 85% forward head posture, 90% drooping shoulders, 70% pectoral kyphosis, 65% posterior pelvic tilt, 40% bowed knees or X-shaped legs, and 30% ankle rotation.Conclusion: Sore neck and shoulders, sore eyes, painful wrist, and fingers are very common among computer users. Forward head posture, drooping shoulder (that of the user’s dominant hand), and bowed knees or X-shaped legs were found to be the basic and prevalent postural problems among university students. Inactivity caused by over-work and not attending to ergonomic principles while working was among the key risk factors observed in this study.

The impacts of wife abuse in societies and their negative influences of mothers and children have been presented in many researches. One of the general characteristics of wife abuse is its hidden nature; in such a way that most Iranian women tolerate their being abused. Thus, there is no notable research in the country on this issue. In order to review the prevalence of wife abuse and its affecting factors among the married couples of the city of Tehran, Moffitt et al (1996) Questionnaire has been applied. Findings of their research reports 81.71 percent of prevalence of wife abuse. The report identifies that there is a significant relationship between the variables of age, education, occupation and family level of income of wives abused. Also, with the length of marriage, the rate of wife abuse did not decline. That is, social tolerance not only has helped continuation of domestic violence, rather it enhances it.

Introduction: A change in the method of contraception result to changing in women's protection against pregnancy and they may encountered with unwanted pregnancy, therefore this study performed with aim determine of prevalence rate and effective parameters on switching contraceptive methods in women referred to health centers in the Tabriz.Method: This study was a descriptive - analytical and a kind of cross- sectional that performed on 861 women in the ages of fertility (15-49). The research population was women in the ages of fertility that sampled by systematic random. The data were gathered by the researcher made five-part questionnaire. The value of questionnaire was gauged by content validity and test-re-test reliability (r=0.86). The questionnaire based on the factors in switching of methods was formed in 5 parts: demographic characteristic, medical and fertility history, side effects of contraceptive methods, dissatisfaction of contraceptive method, and effective factors the choice of a new method or continue the previous method of contraception. Face-to-face interview was used to complete the questionnaire. The data analyzed at two levels of descriptive and inferential statistics by software of SPSS v.13.Results: The mean age of women was 31/32 years. The prevalence rate of contraception methods switching was 16.8 percent. The results showed significant relation between the experience of side effects in hormonal methods (P=0.01) and condom method (P=0.001) by switching of the contraceptive methods. The most common side effect was mood changes for hormonal methods, an increased in volume of menstrual blood for IUD method, and vaginal sensitivity for condom method. Also the results showed significant relation between the dissatisfaction of hormonal methods (P<0.001), condom method (P<0.001) and traditional methods (P=0.01) by switching of the contraceptive methods. The most common dissatisfaction factor was forgetting of consumption for hormonal methods, fear of IUD fending off or having experimentation about it for IUD method, low quality of product result to lack of husband's desire in use for condom method and fear of fair in contraceptive method or having experimentations about it for traditional methods.Conclusion: Side effects of contraceptive methods and dissatisfaction of methods are the two effective factors in switching of contraceptive methods. In many cases health services providers can hope to long using of contraceptive and the effectiveness of their by providing sufficient education about the side effects, prescribing methods according to limitations and unique characteristics of clients and being of services in form of client-centered.

Introduction: There are about two millions of wounds caused by mammal biting annually. In our country, the current trend in the increasing cases of people bitten by animals remains of prime importance from sanitary-economic point of view. This study was carried out by determining and specifying the registered cases of animal biting for the last 3 years. The cases had referred to an anti rabies clinic in Mashhad. The present study tends to find out a more precise distribution rate of the disease in order to be able to have more efficacious plans and control in the community.Materials and Methods: Initially, all the files reflecting information about the patients who had referred to the anti-rabies clinic located in No. 2 Healthcare Center of Mashhad. The cases were studied separately for each year; i.e. the years of 1385 through 1387 HS. Then, based on the required data gathered. Distributive tables were made for each year. Results: According to the findings of the study, 3809, 3294 and 3535 cases were bitten by animals in different regions in Mashhad during the years of 1385, 1386 and 1387, respectively. The percentage of bitten cases aging in a range of 10-19 years old was more than the incidents in the other groups. Also, the number of bitten males was more than the bitten females. In addition, it was found that the quantity of biting cases in urban areas was more than those in the rural regions. The findings also indicate that the amount of cases that received partial treatment was more than those who had complete treatments. Furthermore, most of the cases were bitten by dogs and the upper and the lower limbs were the most affected parts of the body. Conclusion: During warm seasons, young males are at risk of biting.  After the incident, washing the wound with water and soap as well as rabies vaccination are recommended.