نتایج جستجو برای: until the last century
تعداد نتایج: 16064103 فیلتر نتایج به سال:
Successful organ transplantation is one of the many medical miracles that have occurred in our extraordinary century. The dream is ancient. The well-known story of Cosmos and Damian, the martyred twin physicians who replaced the gangrenous limb of a white sacristan with that of a dead Moor, is visually recorded by. many artists. However, it was not until the 1900s that scientifically documented...
Local anesthetic systemic toxicity (LAST), including cardiovascular (CV) and central nervous system (CNS) complications, is a rare but devastating complication of regional anesthesia. Soon after the first successful use of cocaine as a local anesthetic (LA) in the late 19th century, there were case reports describing systemic toxicity and recommendations for its prevention. Arguably, LAST has b...
vocabulary as a major component of language learning has been the object of numerous studies each of which has its own contribution to the field. finding the best way of learning the words deeply and extensively is the common objective of most of those studies. however, one effective way for achieving this goal is somehow neglected in the field. using a variety of activities such as games can r...
burnout is a response to the chronic work stress which is prevalent mostly among the people who do people job, like teaching. the purpose of this study was to develop a valid and reliable instrument that can measure burnout in foreign language teachers. although some widely used instruments were developed before which measured burnout in teachers, a specific instrument which include specific sy...
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Background: Many types of natural disasters are sudden and calamitous events that create a large socioeconomic burden with significant negative impact on health care, social infrastructure, and the environment; especially in the low and middle income countries; therefore, it is necessary to reduce or control this kind of disasters by understanding the specific risks and negative impacts. Recogni...
this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...
muhammad ibn muhammad ibn numan, known as "shaykh mufid," one of the great imamiye theologians and jurists in the fourth and early fifth century , had comprehensive mastery of both rational and traditional topics and exerted his influence upon both his contemporary and future scholors. he is considered to be one of the top imamiye scholars who spent his lifetime teaching, learning and authorin...
in the early stage of the twentieth century, iran passed one of its significant turning point domestically and internationally. during these years, which coincided with the last decades of the qajar dynasty, iran participated in multilateral diplomatic processes in spite of its weak internal and external power position. this research, while cognitive of the centrality of geneva based intergover...
growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...
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