a. ram

The survival rate of patients with vegetative state depends on many factors such as the amount of medical equipment used and how they are cared. By obtaining an average survival rate, one can estimate the average maintenance cost. The purpose of this study was to investigate the survival rate of patients with vegetative state referred to forensic medicine centers in Tehran from the beginning of 2008 to the end of 2017.

In this retrospective descriptive cross-sectional study, 58 records of patients with vegetative state referred to forensic medical centers in Tehran during 10 years (beginning of 2008 to the end of 2017) were studied. Data were analyzed by SPSS 23 software using chi-square test.

31 patients (53.4%) were still alive at the time of study and 27 patients (46.6%) were dead. The mean of survival rate of patients with vegetative state was 6.39±1.50 months ranged from 2 to 192 months. There was no significant relationship between survival rate of patients with vegetative state and sex, age and cause of vegetative state (p>0.05).

The mean of survival rate of patients with vegetative state referred to forensic medicine centers in Tehran from the beginning of 2008 to the end of 2017 is 6.39±1.50 months. The minimum survival rate after vegetative state has been 2 months and the maximum has been 192 months (16 years). Therefore, the average cost of maintaining them can be estimated.

According to articles 493 and 539 of the Islamic Penal Code, it is important the time interval between behavior of the perpetrator and its consequence, as well as death due to contagion of injury or unintentional injuries. The aim of this study was to investigate the one-year requests by the judicial authorities of Tehran for contagious and non-contagious injuries in death.

In this descriptive study, a total of 77 files of deceased persons were examined in the autopsy room of forensic diagnostic and laboratory center of Tehran province in 2018, and required information was extracted.

The judicial authority requesting injuries was most often the special investigator for the murder and in most cases, the interval between injury and death was less than a week. The amount of contagious injuries was higher than non-contagious injuries. 16 deceased (20.8%) died at the scene. In addition, 14 (18.2%) cases of contagion were reported as having a relative effect.

The deceased who died on the scene do not fall under the category of contagion. It is also incorrect to declare the contagion of the damage in the form of a relative impact on the authors' beliefs; therefore, injuries are merely divided into contagious and non-contagious. In any case, it will be up to the forensic doctor to determine whether the death is due to contagion.

dentists are exposed to mercury vapor due to occupational exposure to amalgam Which can endanger their health. the aim of this study was to measure the concentration of urinary mercury in dental students and the restorative specialists one of the dental schools in Iran in order to determine the effect of mercury vapor on them.

The study population Including 40 dental students and 10 restoration specialists. Sample urine at the end of work time was collected, and the concentration of mercury in urine was measured by cold vapor atomic absorption spectrophotometry. A questionnaire was completed to determine the effects of some personal and environmental factors on the amount of urinary mercury. Data were analyzed by using SPSS software.

The mean concentration of urinary mercury in dental students was 15.18±4.34μg/L and the restoration specialists were 4.11±1.05μg/l. In addition, there was a significant difference between the concentrations of urinary mercury in the two groups (P <0.001). At specialist professors There was a negative correlation between urinary mercury and working hours per day (r=-0.78, p=0.007). Also, in this study, there was a significant relationship between urine mercury and sex, age, type of amalgam consumed, consumption of smoking and the number of amalgam restorations.

Although the level of urine mercury in all samples was lower The recommended amount of ACGIH .Finally, the study is recommended mercury level monitoring for regularly evaluation of the workplace.

Determining the impact mechanism is one of the most important measures in forensic science. The mechanism of fracture of the metacarpal neck is squeezed directly into the fist. Often, this type of fracture is due to the impact of the first depending on the hard. In this study, we introduce a case of this fracture. He was a middle-aged man, who had ache with various areas of the body followed by a quarrel, and came to the forensic medical center in 2018. His injuries included fifth right metacarpal neck fracture in addition to several superficial scratches. The judiciary asked forensic medicine to declare that, inasmuch as the plaintiff acknowledged that the damage had been caused by the iron cutter bow saw, according to the type of injury, with what it was created. Replying to judiciary, the forensic medicine declared that the fifth right metacarpal neck fracture was not due to a bow saw. If the forensic medicine does not pay attention to the mechanism of trauma in the examinations, due to the non-differentiation of the traumatic consequences of the incident from a traumatic self-made (fabricated) trauma, it may lead to the violation of the rights of individuals and the loss of confidence of the victims and, on the other hand, it will lead to misuse of the perpetrators. In order to identify the mechanism of trauma and the way, in which the lesion is established, interaction with the judiciary is very promising and correspondence and interaction with judiciary should not be ignored in any way.

Let $G$ be a finite and simple graph with edge set $E(G)$. The second geometric-arithmetic index is defined as $GA_2(G)=\sum_{uv\in E(G)}\frac{2\sqrt{n_un_v}}{n_u+n_v}$, where $n_u$ denotes the number of vertices in $G$ lying closer to $u$ than to $v$. In this paper we find a sharp upper bound for $GA_2(T)$, where $T$ is tree, in terms of the order and maximum degree of the tree. We also find a sharp upper bound for $GA_2(G)$, where $G$ is a unicyclic graph, in terms of the order, maximum degree and girth of $G$. In addition, we characterize the trees and unicyclic graphs which achieve the upper bounds.

According to the IAEA and USNRC (United State Nuclear Regulatory Commision) regulations, calculating a strong ground motion during an earthquake is of great importance for the design of nuclear facilities, especially nuclear power plants. In the absence of precise seismic studies and in case of severe earthquakes, many radioactive contaminants are released into the environment, with irreparable physical and financial losses, hazarding the nuclear facilities, people and the environment. In this research, in order to develop the earthquake attenuation relationships for Boushehr, an important region, simulation of the ground motion was used along with the stochastic finite fault method. The results obtained from the simulation have been compared with the results obtained from the valid world relations for the Zagros region. Evidently, they show good consistency. The proposed model is a theory-empirical relationship of the Bushehr susceptible region, which can be used to assess the safety of the existing nuclear power plant in Boushehr and to design new nuclear power plants in the future.

Industrialization and human overpopulation are among the major reasons of environmental pollution and especially the pollution of water resources systems. Human activities can contribute to upsetting the delicate balance of nature by polluting air, soil, and water resources. The environment has the ability to recover from damages caused by pollutants, however, the problem is that this ability is limited and the process is time consuming. Nowadays, studying groundwater systems and providing new methods and managerial tools has become a widespread activity among water resources planners and managers. Since majority of Iran’s water demand is provided by groundwater and aquifers, there has to be a meaningful accentuation and notes on both qualitative and quantitative characteristics of water extracted from this kind of water resources systems as a strategic and a decisive phenomenon in regional planning. Groundwater, which is a major source of domestic, industrial, and agricultural water supply worldwide, is less susceptible to different types of water pollutants in comparison with surface water. Nevertheless, monitoring and remediation of groundwater pollution are more complicated and expensive than that of surface water pollution. Spatial variability and lack of data make groundwater remediation more difficult or even impractical. Therefore, pollution prevention must be considered as an immediate action for an effective management of groundwater resources.
The vulnerability assessment of groundwater system is a good practice for modelling and planning to preserve and protect these valuable systems from pollutions. Quantifying how and where groundwater systems are prone to be polluted is termed as vulnerability assessment. The tendency of contaminants originated from the land surface to reach water table is termed as groundwater vulnerability. National Research Council defines two types of groundwater vulnerability: specific vulnerability and intrinsic vulnerability. Intrinsic vulnerability is independent of the nature of water resources system, while specific vulnerability takes into account the susceptibility of groundwater to particular contaminants. Groundwater vulnerability assessment is a tool for protecting and qualitative management of these valuable resources. So, in this paper a well-known groundwater vulnerability model is used to assess aquifer vulnerability to pollutants. Different approaches such as indexing, statistical analysis, and process-based methods have been proposed for assessing the vulnerability of groundwater to pollutants and delineating vulnerable areas of aquifers. GOD, DRASTIC, AVI, SINTACS, RISKE, and DRAV are examples of indexing methods. This study proposes Dehgolan aquifer vulnerability assessment using DRASTIC technique. DRASTIC index is calculated as a linear combination of factors affecting the groundwater vulnerability to pollutants. In the present study, Generalized Reduced Gradient 2 (GRG2) algorithm was used to create an optimized weighted linear combination of the factors used in DRASTIC method based on gridded images to establish the aggregated vulnerability model. As a good criterion to evaluate the efficiency of this model, Spearman Correlation Rank Test (SCRT), between Groundwater vulnerability Index and Nitrate (NO3) concentration was carried out that was equal to 0.493. The optimization-simulation in this study includes a simulator of DRASTIC model with a given vector of candidate weights by optimization algorithm and the GRG2. The GRG2 algorithm could reach the desired value of SCRT with the minimum number of iteration. Then for evaluating this criterion, model’s parameters were optimized using (GRG2) algorithm and the correlation coefficient as objective function.
The optimized correlation was computed as 0.651. The study results, found optimization procedure as good idea in vulnerability assessment, where there is low or insignificant relationships between what is modeled using vulnerability technique and extend of observed pollutions in groundwater system. Optimization process showed the approach taken in the study useful in balancing and deriving reasoning multiplicative weights in a realistic groundwater vulnerability assessment. Even though, the study proposes a procedure for weights delineation of DRASTIC vulnerability method, it does not optimize number of subdivisions and sub-weights. Hence, further study would tune the method so that describes vulnerability condition concordant to observed pollutions. This study showed that although in vulnerability assessment, inaccurate data and uncertainty caused poor relationship for the vulnerability index and the current condition of the aquifer, the optimization approach could tune a desirable groundwater vulnerability map for regional planning. Finally, it is to say, the procedure which is described in this paper can be used for many aquifers and different groundwater systems for assessing their accurate vulnerability condition.

Because of its wide applications in plasma based equipment, plasma parameters of a trigatron switch are investigated with the intention of the switch optimization. The theoretical method is based on the simulation of a closed switch discharge circuit, included the main capacitor, total circuit inductance, and plasma resistance, in an under damped oscillator. The charging voltage is between 6 to 15 kilovolts, the switch pressure is between 1 to 1.5 atmospheres and the gap is 1.4 or 2.8 mm. The density of the discharge plasma of the switch in self-breakdown mode is determined using the recorded time varying voltage and the switch current. The obtained electron density of plasma is (0.5-3.5)×1024 per cubic meter, which is in good agreement with the results published in standard references for arc and spark plasma in atmospheric pressure, based on the streamers mechanism.

In this paper, the effect of photocatalytic reduction on hydrophilicity of graphene oxide nanosheets is presented. The graphene oxide nanosheets were prepared by oxidation and exfoliation of natural graphite. The prepared samples were exposed to UV irradiation in presence of TiO2 nanoparticles. Raman spectroscopy and atomic force microscopy show that roughness of the surface is increased due to increasing irradiation. Also, the hydrophilicity of samples by measuring the contact angle of micro-liter droplets of deionized water, showed that by increasing exposure time up to 8 hours the contact angle of samples in crease from about 27 degrees to about 89 degrees.

The application of recombinant DNA leads to production of a large number of therapeutic proteins and peptides. Lactoferricin, a strong cationic peptide N-terminal region of lactoferrin, is produced by a protein-digesting enzyme pepsin. So, this project was done to produce lactoferricin of camel in hairy roots of tobacco and investigate its antibacterial effect. For this reason camel lactoferricin peptide gene sequence was extracted from gene bank and after optimization of codon usage synthesized artificially. The mentioned sequence was subcloned into pBI121expression vector. The recombinant pBI121 vector was transferred to Agrobacterium rhizogenes bacteriumand then was used to produce hairy roots. Hairy roots was evaluated and proved by specific primers of gene which coded lactoferricin peptide. Recombinant peptide of lactoferricin was extracted from hairy roots and evaluated against plant pathogenic bacteria including Pseudomonas syringae, Pseudomonas fluorescens, Pseudomonas syringae pv. syringae, Erwinia amylovora, Xanthomonas citri, Pectobacterium carotovorum by disk diffusion method. The results showed that this peptide was expressed in hairy roots and has significant antibacterial effect.

Students are one of the vulnerable groups to injuries. The deaf and hard of hearing students may also be more vulnerable due to their disability. This study was conducted through the developing, implementing and evaluating an educational program on school injury preven-tion among high school deaf and hard of hearing students, using Health Belief Model. This Quasi-experimental study was conducted among all deaf and hard of hearing students in Hamadan city of Iran, who were studied in two their related special schools, in 2014. They were randomly divided into two experimental (n=23) and control (n=27) groups. Data were collected via questionnaire including questions on demographics, Health Belief Model constructs and students’ knowledge and preventive behaviors. Questionnaires were filled out, through interview in both groups, before and two months after the intervention. The intervention included a designed booklet and five educational sessions. Data was analyzed by Paired T-test, independent T-test, Chi-Square and Fisher Test using SPSS-16. The findings revealed that after educational intervention, the mean scores of the student's knowledge (P=0.002), preventive behaviors (P=0.001) constructs of Health Belief Model, including perceived severity (P=0.001), perceived benefits (P=0.001), self-efficacy (P=0.001) and cues to action (P=0.001) were significantly improved in experimental group, comparing with control group. The results of the study showed that an educational intervention based on the Health Be-lief Model can improve school injury preventive behaviors among deaf and hard of hearing students.

Diabetes is one of the chronic diseases with no curative treatment; also, it is the most common cause of amputation, blindness and chronic renal failure and the most important risk factor of heart diseases. Logistic regression is one of the statistical analysis models for predicting that can be used to find out the relationship between dependent and predictor independent variables and control of the confounding variables. The aim of this study was to determine the rate of effective variables on diabetes and estimation of the logistic regression model for predicting. 5357 persons in Kerman city, Iran, were enrolled. Diabetes considered as the response variable and weight, height, body mass index (BMI), waist circumference, hip circumference, waist-to-hip ratio (WHR), age, gender, occupation, education, drugs, drug abuse, activities, systolic and diastolic blood pressure, and levels of total cholesterol, the high-density lipoprotein (HDL), the low-density lipoprotein (LDL), and triglycerides were considered as independent variables in the model. Measures of sensitivity, specificity, accuracy, Kappa measure of agreement and ROC (receiver operating characteristic) curve was applied for determining the power of test. The Sensitivity, specificity, accuracy rate, Kappa measure of agreement and area under the ROC curve for the model were 0.764, 0.725, 0.731, 0.312 and 0.822, respectively. The following variables were significant according to their impact and their importance, respectively: WHR (? = 2.66, OR=14.32), anti-hypertensive drug (? =1.279, OR= 3.59), sex (? =0.707, OR= 2.028), level of education, walking and cycling (? = 0.136, OR= 1.146), waist circumference (? =0.12, OR= 1.127), weight (? = 0.112, OR= 1.118), BMI (? = 0.053, OR= 1.054), systolic blood pressure (? =0.052, OR= 1.054), age (? =0.046, OR= 1.047), diastolic blood pressure (? =0.043, OR= 1.044), total cholesterol (? = 0.003, OR= 1.003), triglycerides (? =0.01, OR= 1.011), LDL (? = 0.001, OR= 1.001), hip circumference (? = - 0.025, OR= 1.025), height (? = -0.071, OR= 0.932), HDL (? = -0.078, OR= 0.925), an intense 10-minute work activities (? = -0.507, OR=0.602). According to the criteria of accuracy and power of prediction, and considering ROC curve value (0.822) which could perform test accuracy as well for the diagnosis of diabetes, the logistic regression model was an appropriate model for the prediction of diabetes in this study.

In this study, a factorial experiment was performed in completely randomized design (CRD) with three factors: arbuscularmycorrhizal fungi with two levels (inoculated and non-inoculated soil) and cadmium with six levels (0, 5, 10, 20, 40 and 80 ppm). The results showed that effect of cadmium levels on iron and manganese concentration was significant in one percent level of statistical. In80 ppm cadmium concentration in soil, a reducediron were on concentration of Iron (39% and 53%) and manganese (48% and 48.5%) in root and aerial respectively. Butarbuscularmycorrhiza fungi increasediron concentration 30.2% and 26.7% in theroot and aerial, and manganese concentration36% and 30.9% in root and aerial plant respectively.

The effects of Arbuscular Mycorrhizal fungi on nitrogen concentration of berseem clover were examined in contaminated soil with cadmium. Examined factors included: levels of arbuscular mycorrhizal fungi inoculation (Glomus mosseae) (With and without inoculation), and different levels of soil contamination by cadmium (0, 5, 10, 20, 40 and 80 mg.kg-1). The results showed that the effects of cadmium levels and mycorrhiza fungi were significant on nitrogen concentration (P≤ 0.01). Arbuscular mycorrhizal fungi increased nitrogen concentration in the root and aerial plant 30% and 40.3% respectively. Also cadmium in concentration of 80 mg.kg-1 reduced nitrogen concentration in root and aerial plant 28.3% and 35% respectively.

A set S of vertices of a graph G = (V;E) without isolated vertex is a total dominating set if every vertex of V (G) is adjacent to some vertex in S. The total domatic number of a graph G is the maximum number of total dominating sets into which the vertex set of G can be partitioned. We show that the total domatic number of a random r-regular graph is almost surely at most r 􀀀 1, and that for 3-regular random graphs, the total domatic number is almost surely equal to 2. We also give a lower bound on the total domatic number of a graph in terms of order, minimum degree and maximum degree. As a corollary, we obtain the result that the total domatic number of an r-regular graph is at least r=(3 ln(r)).

Finding special periodic orbit in the highly chaotic problems is very complicated. Thus, deriving an effective algorithm for finding such orbits is important. In this paper, the spatial orbits in three-body problems are studied. Then, an algorithm is derived in order to help to find these orbits. This algorithm includes scanning the space, refining better points, and finally, minimizing the position error of the orbit by means of numerical methods.

The study of micro seismicity and monitoring the micro seismic for the purpose of surveying the existing faults treatments and recognition of blind faults and other active tectonic structures in various phases of constructing the important structures, specially nuclear power plants, is unavoidable. According to IAEA safety guides and US-NRC regulatory guides, suitable instrumentation must be provided so that the seismic response of nuclear power plant features importantly from the safety point of view. According to R.G. 1.165 seismic monitoring by a network of seismic stations in the site area should be established as soon as possible after the site selection. Also, it is necessary to shutdown the nuclear power plant if vibratory ground motion exceeds the operating basis earthquake (OBE). The current research demonstrates the field works and studies for locating the local seismograph network in Darkhovein nuclear power plant. After the official studies and the primary visit of the old seismograph stations it was found that the mentioned network doesn’t cover completely the geological structures around the power plant. Therefore, new locations have been introduced through the field investigation and computational methods of optimization. In positioning the new stations, places with the least amount of noise and the best coverage for seismic sources were selected. The modeling with considering an imaginative station at the selected places shows that the thresholds of the complete records of earthquakes around Darkhovein site is under the magnitude 1 (about 0.8).

depression is a common disorder; however students of medical sciences who are involved in providing physical and mental health of society are more vulnerable. Timely diagnosis of this disorder can provide opportunity to prevent progress of and complication of depression. The purpose of this study was to measure prevalence of depression among successful and unsuccessful students of Public Health and Nursing -Midwifery schools of Shahid Sadoughi University of Medical Sciences in 2008. This is a cross-sectional descriptive study, performed on 125 successful and unsuccessful students. Grade point average of previous semester was the selection criterion of students in each group. Data collection tool was a two segments questionnaire. The first segment was related to demographic information of people under study and the second one was related to measuring the amount of depression based on Beck test. Data were analyzed using SPSS software and analytical statistics was used to investigate the relation between variables. 53 out of 125 subjects were suffering from different degrees of depression. Maximum prevalence of depression was identified within unsuccessful students of midwifery and nursing school. Statistical test of Χ2 showed statistically significant relationship between the amount of depression and three variables of successful and unsuccessful students including: 1) discontent with the field of study, 2) living in dormitory, 3) unsuccessful students of Public Health, Midwifery- Nursing schools. Public Health and Nursing- Midwifery students in Yazd had a high prevalence of depression. Therefore planning is required to support advisory services to control and prevent depression among students.

Recent evidence on the efficiency of microorganisms and their metabolic products in the oil extraction rate, which is also called microbial enhanced oil recovery, has been reported. In this work, the oil samples produced from Gachsaran oil reservoirs were evaluated in order to isolate and identify bacteria by using public and private media and to consider the ability to produce bio surfactant. In order to determine the best conditions for cell growth, carbon sources (whey, soy, starch, molasses, peas, and water) were added to the medium and bacterial growth curves were plotted over a period of 7 days for each of the bacteria. Best carbon sources for bacterial growth were whey, starch, and soy. The identification of bacteria was also done by molecular and biochemical methods. On the whole, according to the results of biochemical and 16sr RNA tests, these bacteria were classified in the Bacillus genus. Moreover, the sample No. 5 from bacteria Bacillus Licheniformis with ID 1455550 and the sample No. 7 from bacteria Bacillus Subtillis, with ID 1455557 were registered in the NCBI GenBank of America.

This paper presents a nonlinear model to illustrate the effect of contact stress in the vibration behavior of mechanical components, especially rotating systems. The problem is considered in the case of the vertical vibration of a sphere on a plate. The Hertzian contact theory is used to obtain the relationship between contact force and the deflection of the mass center of the sphere. Modeling the system by a mass and a nonlinear spring, the vibration equation of the mass center of the sphere is derived. The method of Lindstedt–Poincaré is implemented to solve the equation of motion, and obtain vibration characteristics under a compressive preload. The dependency of frequency on several parameters, such as initial applied force, initial amplitude of oscillation and the diameter of the sphere, is distinguished. Results show that increasing the initial applied force or the diameter of the ball raises the frequency, while increasing oscillation amplitude has an inverse effect. Finally, the accuracy and convergence of the solution are illustrated by comparison between different orders of approximation. Also, results are in good agreement with those extracted from numerical modeling.

Periodic orbits have been studied more extensively by space mission designers in recent years. These orbits are usually described as planar in three-body-problems. In this article, in addition to introducing a new orbit that turns around a secondary mass, applications in Moon-based, Earth-based, and interplanetary missions are also described. Floquet exponents as chaos indicators and normal potential levels for orbits are also calculated. The advantages of their use as space station orbits are studied at the end of the article.

Pleurotus florida is an industrially cultivated basidiomycete with nutritional، environmental and medical properties. In This study used the cellulytic waste materials contains newspaper، straw paper، inkjet printed paper، laser printed paper، handwritten paper، plain paper. The effects of different substrate on fruit body formation، biological efficiency and protein content of P. florida in 50 days period were examined. Spawn running، pin head and fruit body formation، were studied and the results demonstrated that these three phases take less time in straw paper treatment compare to control. In the all treatments، protein content were decreased. The most protein content was observed in the laser printed paper while the lowest measure of protein content showed in the straw paper treatment. The waste paper treatments decreased biological efficiency and also in the protein content of P. florida.

A new method for measurement the small signal gain of an open CW-CO2 laser in different condition is presented and the theoretical concepts are completely described. This method is based on bringing the laser on critical condition by inserting a loss element in laser cavity. Also, by measuring output power, in a same time, the gain saturation intensity for each condition is obtained. The main point of this method is removing requirement to additional laser that has been used for measuring of small signal gain in oscillator amplifier method. With Inter-Cavity loss element method, easer than classic method, results have been obtained which are comparable with other’s.

Abstract: Considering the importance of adequate analgesia for the quality of life of the patient with advanced cancer, and considering the consequences of opioids abuse, we decided to evaluate the proper and improper usage of narcotics in our cancer patients. Prescription of narcotics by the responsible physician and procurement through the legal channels was defined as "use"; otherwise it was defined as "abuse". From a total number of 300 patients who were interviewed, 21 (7%) used narcotics prescribed by the responsible physician (use) and 30 (10%) used narcotics without the prescription or approval of the responsible physician (abuse). The male-to-female ratio, though similar in the "use" and "no narcotics" patients, was very much higher in the "abuse" group. Also income was significantly lower in the "abuse" patients. Disease extent was significantly higher in the "use" but not in the "abuse" group. In addition, the level of pain was very much higher in the "use" and "abuse" groups than the "no narcotics" patients. Both the extent of disease and level of pain were significantly higher in the "use" than the "abuse" group. In multifactorial analysis, pain had a very significant effect for "use" of narcotics and extent of disease was close to statistical significance. For "abuse" of narcotics, sex and pain had significant effects. Pain was the most significant factor leading to both use and abuse of narcotics, and a striking male predominance was seen in narcotic abusers. Nearly half of cancer patients with significant pain were not receiving opioids for adequate analgesia.

A new method for measurement the small signal gain of an open CW-CO2 laser in different condition is presented and the theoretical concepts are completely described. This method is based on bringing the laser on critical condition by inserting a loss element in laser cavity. Also, by measuring output power, in a same time, the gain saturation intensity for each condition is obtained. The main point of this method is removing requirement to additional laser that has been used for measuring of small signal gain in oscillator amplifier method. With Inter- Cavity loss element method, easer than classic method, results have been obtained which are comparable with other’s.