The use of biomarkers in cancer research is rapidly advancing, with applications of biomarkers to studies of cancer etiology, detection, treatment, and prognosis. Due to the use of biomarkers for cancer research, there is growing recognition of the value of biospecimen banks. Specimen banks may exist in the context of ongoing studies based on specific hypotheses or be collected from cohorts of ...

Specimen transfer under controlled environment conditions, such as temperature, pressure, and gas composition, is necessary to conduct successive complementary in situ characterization of materials sensitive to ambient conditions. The in situ transfer concept is introduced by linking an environmental transmission electron microscope to an in situ X-ray diffractometer through a dedicated transmi...

Background: The present study aimed to assess handling procedures and their effects on the sleep-wake time in the preterm infants admitted to the neonatal intensive care unit (NICU). Methods: This observationalcross-sectional study was conducted in the NICU ofVali-e-Asr Teaching Hospital affiliated to Tehran University of Medical Sciences (TUMS), Iran in 2016. Sample population consisted of 15...

objective: among the various impression materials, for alginate tear strength is probably more important than the compressive strength. the tear strength is important when an impression involves a mechanical undercut and/or lacks bulk strength to resist tearing. this study evaluated tear strength of iralgin and compared it with tear strength of alginoplast. methods: in this invitro experimental...

Staging systems for cancer reflects the prognosis of the disease and it is used to choose the modality of treatment. The TNM classification has mainly been used in the west. In Japan, Japanese classification according to General Rules for Clinical and Pathological Studies on Cancer of the Colon, Rectum and Anus(JGR)(Japanese Society for cancer of colon and rectum, 2009) is used. The degree of t...

Transmission electron microscopy (TEM) is a powerful tool for the investigation of the microstructure of materials, providing crystallographic information and composition at the nanometer scale. For such studies, samples should be transparent to the electron beam. In this review, TEM sample preparation techniques for different classes of materials, such as metals and alloys, multilayered coatin...

Dr Fahmy showed a specimen of carcinoma of the body of the uterus removed from a woman, aged 58, who had one child thirty years ago and whose menopause occurred at the age of 40. The patient was well till three years ago when she noticed the onset of a whitish leucorrhoeal discharge which gradually became more marked. Twelve months ago there was very slight bleeding at irregular intervals for a...