In this study, the non-linear creep behaviour of a thick-walled cylinder made of stainless steel 316 is investigated using a semi-analytical method. The thick-walled cylinder is under a uniform internal pressure and a non-axisymmetric thermal field as a function of the radial and circumferential coordinates. For the high temperature and stress levels, creep phenomena play a major role in stress...

Inspection of the paleontologic history of many phyla shows that when certain members of a series of polyisomeres have been subjected to in-. creasing stresses through long periods of geologic time, they have often become enlarged, strengthened or fused with their neighbors and have thereby passed into a state of anisomerism. Thus taxonomy, paleontology, comparative anatomy, genetics, experimen...

Gynaecomastia can be detected in between one-third and two-thirds of men. A wide variety of causes of gynaecomastia, some physiological, some very serious, have been identified. We present a case in which the cause of the gynaecomastia seemed obvious after history taking and physical examination but we finally ended up with a more complex combination of diagnoses. This case stresses the importa...

In rapidly changing environments, selection history may impact the dynamics of adaptation. Mutations selected in one environment may result in pleiotropic fitness trade-offs in subsequent novel environments, slowing the rates of adaptation. Epistatic interactions between mutations selected in sequential stressful environments may slow or accelerate subsequent rates of adaptation, depending on t...

Pseudoseizures, weakness of limbs, elective mutism, dystonia and behaviour problems were the presenting symptoms in three children from three different families with crises superimposed on chronic marital and familial stresses. Lack of open communication among parents and children contribute to the use of physical symptoms as an expression of emotional conflicts. Psychotherapeutic management in...

shahnameh and the history of bal’ami are great and important literary works in iranian culture. these two works have many similarities and embody the history of iran from its beginning up to the authors’ time. the researches show that the sources and references that ferdowsi and bal’ami consulted were different. ferdowsi consulted the prose shahnameh of abou mansouri and the oral narratives; wh...

avicenna (980 – 1037 ad) known as the prince of physicians in the west was one of the most prominent persian thinkers, philosophers, and physicians. owing to his interests in cardiology, he authored considerable works on different aspects of cardiology. “resaley-e-ragshenasi” (book on pulsology) and”kitab al-adviyt- ol-qalbiye” (the book on drugs for cardiovascular diseases) are avicenna’s grea...

dry cupping is one of the main procedures in many traditional medicine systems all around the world with its root in antiquity. traditional method of dry cupping is depended on practitioner proficiency and can lead to skin burn if the practitioner is a beginner. on the other hand, zahrawi (11th century ad), the muslim physician from andulus (current spain) presented two novel forms of cup for c...

historically, there is a consensus that islamic medicine followed the persian, greek and egyptian medicine and that a large number of muslim scholars were non-arabs. it is also known that most famous islamic physicians who took their knowledge to arabic countries received their education in the famous and credible university of gondishapour in iran. therefore, in order to develop a more compreh...

Living systems continuously interact with their environment, and many factors in the environment are not kind to the organisms. The entire biological history is a reflection of this incessant antagonism between the organism and its environment: the diversity of life forms is primarily the result of this dynamic conflict, which is perceived by the organisms or its cells as "stress." These stress...