One of the characteristics of Sassanian is that they use to methods of Water transferring with policy Fund، administrative and important technology، which turn dry and semiarid land of Iran to a suitable place for long and continuum life. Firuzabad Plain (Gur- Ardeshir khore) is a sample of coherent system and exact operation of water sources، from existence in region sub-arid Iran which 18 century after Ardeshir، the founder of Sassanid imperial، recognize the Firuzabad plain as vital area staying the society of Sassanid kingdom. Firuzabad plain is full of huge buildings and memorial from the founder of Sasanian Imperial dynasty along with surrounding settlements، Who has studied settlemen pattern، Water transition practices in Firuzabad plain، Sassanid and Islamic periods unmentioned. Several questions about the sources and modes of transmission of the city of Ardashir khore (Gur) periods the Sassanid and Islamic، remained unclear and they are the aims of the current study. The research methods employed all the available resources to identify and evaluate the role of water shaping Firuzabad plain by the Early Sassanid architecture and ways of carring water to the city of Ardashir khore (Gur) during the 16th century، the life of it. Archaeological studies of the writers revealed that was in surces of Sasanian and Islamics period about different methods of carrying water to Ardeshir khore city has been demonstrable and Firuzabad river has had a main role informing building of early Sassanid period. The most important monuments of the early Sassanid period are the Qale’h Dokhtar، Ardeshir Palace and the Gur city; all of these buildings have raised up by Ardeshir، founder of the Sasanian Empire. Firuzabad Plain settlement largest of Ardashir khore (Gur) city، which is located in the eastern part of the river. According to surveys conducted around the river Firuzabad only source of water for the northern، eastern and south of Gur، a distance of several kilometers. Historical Sources of Water Supply Project for the length of six kilometers to the grave of the story moved to the middle of the city takes a certain height. The river water is not accessible to the middle of the city. After matching the historical and archaeological evidence، it is understood that Sassanid water pond in front of the North Portico of the palace of Ardeshir in the form enclosed and buried in the basement of the town have moved. After the collapse of the Sassanid Empire by the introduction of Eslamic period and early and Middle Ages of the three sources of water for the water supply to the city was buried، These changes are somehow related to political developments in the province and the failure of Siraf port flourished in the Late 4th century (A. H) is. Evidence suggests that the Sasanian have a thorough knowledge of geography and strategic location Firuzabad plain، That consequently the implementation of a systematic and coherent transfer of water to support the political، economic، administrative، technical and strong، Firuzabad plain to bloom in business، industry، agriculture and the arts has، Until after the collapse of the Sassanid Empire in the 4th century (A. H); Has retained its position as an ideal city. But after that، the commercial life of plain Firuzabad plain، the boom fell، maintaining full control of all modes of transport are Firuzabad plain water. The rapid development of urbanization، the construction of more than 2،000 agricultural wells، with the implementation of the agrarian reform law in 1340 decade (A. D) The Sassanid precious relic was forgotten.

Water transfer technology has played an essential role in forming and survival of urban centers in different periods. One of the features of this technology is the water disposal system, which has not been addressed as it should be. It seems that the Sassanids have worked hard in this regard and have shown to what extent, as an infrastructure, it has been decisive, effective, and important for other methods of water transfer. Questions were raised after field studies and literature review on water transfer methods in Firuzabad plain. 1- According to the geographical and environmental features of Firuzabad plain, what strategies were considered for the disposal of surface and groundwater during the Sassanid and Islamic Periods? 2- What effect has made the implementation of this coherent system on the formation and continuity of settlements and the economy of Firuzabad plain? The research approach is historical-descriptive-analytical and has been done using library and field studies. The field study covers the extent of Firuzabad plain with an area of 276 square kilometers. In this area, the water facilities, including river, spring, waterway, qanat, bridge dam, flood dam, and annual rainfall, were studied. These studies clarify that in the Sassanid period, the water disposal system was one of the most important and determining factors in the formation of infrastructure and urban development and other systems and technologies of water transfer in Firuzabad plain. The exact policies adopted have been maintained and exploited by the inhabitants of the plain until the present century. Also, the native names used in this regard are very important and significant. More importantly, it deals with the reasons for the formation of Ardeshir Khowarah in the eastern part of the river. Using archaeological and anthropological findings, this research identifies the water disposal methods of this plain and introduces the advantages of using them.

According to the study conducted on phenylketonuria (PKU) patients in Kermanshah province, there were at least 10 PKU patients in Firuzabad district. The prevalence of the disease and frequency of carriers among the population of Mast-e Ali village, a village in Firuzabad district, were calculated to be 1 in 80 and 1 in 5, respectively. This is one of the highest frequencies reported for the prevalence of PKU to date. These findings introduce Mast-e Ali village as a small region in the high risk of birth defects with PKU. It seems that consanguinity has had a major impact on these findings.

The Asmari Formation is a thick carbonate sequence in Zagros foreland basin. It was deposited during Oligocene – Early Miocene ages. In order to interpret the depositional environment and sequence stratigraphy، Firuzabad section were compared with 4 sections of Asmari Formation in the Zagros basin. Four different sub environments were identified in the Asmari Formation based on microfacies analysis including tidal flat، lagoon، shoal، open marine. These depositional environments correspond to inner، middle and outer ramp. Two third-order sequences have been recognized in the Firuzabad section، on the basis of deepening and shallowing patterns in the microfacies and the distribution of the Oligocene foraminifers. These sequences were correlated with the identified sequences of Dehluran، Mamulan، Dill and Tange-Ab Jahrum sections.

The Oligo-Miocene Asmari Formation is one of the main petroleum reservoir in the Middle East. To determine the biostratigraphy characteristics, facies types and sedimentary environments two stratigraphic sections in the internal Fars (Firouzabad section) with 270 meters thick and in the costal Fars (Bastak section) with 286 meters are collected. In both sections, Asmari Formation is largely composed of limestone and marly limestone. Based on distribution of benthic foraminifera four biozones with ages Oligocene (Rupelian to Chattian) to Miocene (Aquitanian) are distinguished. Facies analysis let to identification 12 microfacies belonging to inner (tidal flat and lagoon), middle (shoal) and outer ramp (open marine) facies groups that have been deposited in a homoclinal ramp with gentle slope during Rupelian to Aquitanian age. Frequency evaluation of facies indicates that outer ramp facies group shows most frequency in Firuzabad section and inner ramp facies group (specially lagoon subenvironment) is most aboundant facies group of Bastak section. Results shows that during Asmari Formation deposition, the Basin depth of internal Fars (Firuzabad section) has been deeper than costal Fars (Bastak section).

The Firuzabadi dialect is spoken by inhabitants of Firuzabad , a town located in Fars province. In this paper, the verb, structure, tense, conjugation, subjunctive, and imperative, etc. have been described and other subjects of this dialect need more investigations. This study has showed there are some differences in the verb (words, sound change, ending and affixation) between Firuzabadi and Persian dialects.

Ghandijan is an archaic city from Sassanian era to the early Islamic period.Its remains are located in an area of approximately 600 hectares near a village called Sarmashhad in Dadin district in the southwestern part of Fars province. The ruins of this prestigious ancient city which are identified in the authors' investigation, includes Tell Khandaq, Bahram Caravanserai, Qizqala, Tell Naqarakhane and the single arched building, which are scattered in different parts of the city.Despite the importance of this ancient site and the wide range of cultural materials in its area, comprehensive and detailed studies have not been carried out regarding the shape and function as well as the spatial organization of this city.In this research, an attempt has been made to investigate the reason of Ghandijan formation in the Sassanid era and also its importance in the Islamic era. Also, questions about the characteristics of industries and productions, the state of ancient communication routes, the antiquity and use of ancient artifacts of this city must be answered.The analysis of the temporal and spatial distribution of movable data in determining its antiquity, made it clear that the life of this city continued in the Islamic era from the era of the Rashidin Caliphs to the Khwarezmshahs and Atabakans of Fars.The old name of the city probably was “Kandigān” but another hypothesis is “Pandegān”. The early Islamic historians mentioned the name of Ghandejan as a city in Fars state. The context of the city located in the south of Iranian plateau near the coast of Persian Gulf. Sassanid cities were founded on specific styles. Firuzabad was the first City that was built by Sassanian kings in 224 C.E as The first capital of empire. Firuzabad is in rounded shape with regular and symmetrical circle and central core that consist a brick watch tower. The other style based on the ancient Roman cities modeling, The Hippodamus city planning. In Hippodamus style, city was built with four gates rectangular shape and two crossroads(Decumanus maximus, Cardo maximus). Inside the south west of Fars plain near the ruins of ancient city of Sarmashhad rounded moat remains from pre- Islamic period just like the Sassanid city style. The archaeological remains of Sarmashhad present an immigration in early Islamic period. The reason of abondanment is not clarified yet. The reason of Fundament of Ghandijan was spatial situation and connection link of the plain between Bishapur, Darabgerd and Firuzabad to The Persian Gulf. The old roads of Ghandijan has shown the importance of tradeway to Sirāf port in coastline of the Persian Gulf. Sherds of pottery remained on surface of hills in plain. Analysis of pottery style and radiocarbon dating and petrography can represent chronology of the city. In our current studies, we consider all parts of archaeological evidence on the field. Sherds of potteries, mounds, architectural remains and satelite and aerial veiw considered to more provision evidence about the foundation of the city. The key research question is why Sassanian authorities chose this plain for construction of a new city?

One of the important aspects of the epidemiologic study of suicide and its related behaviors is the identification of suicide methods. This study aimed to investigate the geographical epidemiology of suicide and suicide attempts in Fars Province located in Southwestern Iran during the years 2010-2013.
The present study was conducted on 17,342 suicide and suicide attempt cases in Fars Province. To collect the data, the monthly suicide prevention program checklist was used. Data were analyzed using the SPSS software, R software, and ArcGIS software. Using Bayesian hierarchical models, the standardized mortality ratios (SMRs) were prepared and calculated according to the common suicide and suicide attempt methods.
On average, the suicide rate in Fars Province was 3.85 in one hundred thousand people per year. The geographic pattern of suicide in the mentioned province showed that the highest rates of hanging were reported in the cities of Firuzabad, Farashband, and Larestan, Iran, and the highest rates of self-immolation were reported in cities of Mamasani, Shiraz, and Firuzabad, Iran.
Despite the low rate of suicide in the cities of Fars Province, the rate of suicide-related behaviors, including suicide attempt and suicide by violent and deadly methods, was high in some areas of the province. Therefore, restricting access to lethal means and methods of suicide and planning to identify areas with high risk for suicide in the province is necessary.

With the foundation of Sasanian dynasty, the first fully anthropomorphic representations of Ohrmazd appeared in ancient Iranian art. He was depicted in eight rock reliefs at Firuzabad, Naqsh-i Rajab (2 scenes), Naqsh-i Rustam, Tang-i Chugan (2 scenes) and Taq-i Bustan (2 scenes) while investing a beribboned diadem to the Sasanian king. The iconography of Ohrmazd was not a new one and before Sasanian period in Commagene and Bactria, the image of Ohrmazd had mainly created by imitating Greek-Roman prototypes. But the iconography of Ohrmazd in Sasanian rock reliefs was different. He was completely depicted in Iranian artistic fashion, and in some scenes, he carried bundles of barsam. Barsam is an implement carry by priests in ceremonial rituals. However, Avesta reveals that barsam was not only use by priests, but also hold by some deities including Ohrmazd. In Aban Yasht, Ahura Mazda (Middle Persian Ohrmazd) praises Aredvi Sura Anahita with the barsam. There are still questions about the figure of Ohrmazd and the sources of his iconography in Sasanian rock reliefs. So it is significant to review Zoroastrian texts again and study whether they affect the iconography of Ohrmazd or not. By analyzing and comparing the characteristics and details of iconographical elements of Sasanian rock reliefs and also regarding Zoroastrian written sources, the authors try to find the origin of these artistic models and the reason why Ohrmazd carries a bundle of Barsam at Firuzabad, Naqsh-i Rajab, Naqsh-i Rustam and Taq-i Bustan investiture scenes. The results show that the iconography of Ohrmazd was especially modeled after the royal art and the king himself. Furthermore, Some Zoroastrian texts reveal that Ohrmazd incarnate in Gētīg (material world) as an Ahlaw man or a priest and probably Sasanian artists consciously depicting him while carrying barsam in his hand(s).

Tangab Dam is located 90 km south of Shiraz city and 12 km northwest of Firuzabad city on the Firuzabad river. This dam is constructed in the Zagros zone on the Podenow limestone anticline. Evidence shows that there is a possibility of water escaping from the reservoir and abutments. In this research, the exploratory data analysis includes: distribution maps, histogram, statistical parameters, and variogram was performed on the variables of RQD, Lugeon and cementing. Moreover, geostatistical modeling is used to recognize the permeable zones. These variables have high variation in the different elevations. According to omnidirection variograms, the spatial continuity of cementing estimated 100 m while pursuant to idirection variograms for RQD and Lugeon it ranged between 200-400 and 40-160 respectively. Finally, according to the simulation and uncertainty maps of the variables of Lugeon, RQD and cementing it observed that there are areas with high permeability in two locations in the center of the reservoir and northwest of the dam. Therefore, the potential of escaping is higher in these places. The study of faults in the study area showed that the density of faults is higher on the right abutment of the dam and this can increase the permeability.