In the 1949 article ?Revival of Spermatozoa after Dehydration and Vitrification at Low Temperatures,? researchers Christopher Polge, Audrey Ursula Smith, and Alan Sterling Parkes demonstrated that glycerol prevents cells from dying while being frozen. Polge and his colleagues discussed several procedures in which they had treated sperm [4] cells from various species with glycerol, froze those c...

abstract awareness of consumer reasons during nutrition choice is very important, because this decision directly affect their health. since beef is one of the essential goods in consumer basket of goods of iranian households, exploring of factors that influence consumers purchase decisions and intentions toward imported frozen beefs in east azerbaijan province – tabriz city is the purpose of th...

background and objective: intraoperative consultation by frozen section is a high – risk procedure with important consequences. therefore, it is critical to determine efficiency of frozen section performance periodically. this study was performed to determine the accuracy of frozen section in urmia university of medical sciences. materials & methods:inthis cross sectional study, we compare...

BACKGROUND Frozen embryo transfers are characterized by impaired pregnancy outcome and increased incidence of pregnancy loss as compared with fresh IVF/ICSI embryo transfers. In this study, we performed a retrospective analysis of clinical and embryological factors that potentially influence the outcome of frozen embryo transfer. METHODS We reviewed the outcome of 1242 frozen embryo transfers...

A frozen Rydberg gas is a sample of atoms with highly excited electronic states and very low temperature. In our experiments, Rb atoms are cooled and trapped in a magneto-optical trap (MOT) (fig.1&2), and excited to the Rydberg states (the principle quantum number n ~30) by pulsed dye lasers (fig.3). In such a system, the density of Rydberg atoms Nd is typically ~10atoms/cm, and the temperature...

Background: Currently, frozen embryo transfers contribute an increasing rate of births from assisted reproductive technologies such as in vitro fertilization (IVF). However, very few studies evaluated the neonatal outcomes from frozen embryo transfer. This study aimed to investigate and compare the neonatal outcomes from frozen embryo transfer versus fresh embryo transfers. Materials and Method...

Magnetic properties and spin dynamics have been studied for the structurally ordered double perovskite Sr2CoOsO6. Neutron diffraction, muon-spin relaxation, and ac-susceptibility measurements reveal two antiferromagnetic (AFM) phases on cooling from room temperature down to 2 K. In the first AFM phase, with transition temperature TN1=108  K, cobalt (3d7, S=3/2) and osmium (5d2, S=1) moments flu...

OBJECTIVE Oncologic treatments can destroy spermatogenic dividing cells and cause azoospermia which could be irreversible. Sperm banking is the best option to preserve male fertility after these treatments. It is easy, inexpensive, and safe. To date, few clinical data are available about large series of cancer patients. Our objective was to determine the usefulness of these preventive sperm fre...

Background and Objectives: Thyroid gland because of its superficial location is amenable to direct physical examination. Clinical assessment of thyroid lesions by means of physical examination, thyroid scans and ultrasonography is not completely reliable. Fine needle aspiration cytology (FNAC) is the most cost-effective, safe and an initial diagnostic test in the pre-operative evaluation of thy...