introduction: unwanted pregnancies are one of the major problems in developing countries. this research aimed to answer the question whether women with unwanted pregnancies seek the health care they need. methods: in this descriptive-analytical study, 270 pregnant women referring to shahroud hospitals to terminate their pregnancies were studied through the census method and were divided into tw...

four fat-tailed ewes from an indoor flock (n=40) were examined for recumbency and depressive nervoussigns. they were from a seemingly nonpregnant group of the flock that had been diagnosed bytransabdominal ultrasonography. the ration consisted of mainly wheat straw since their separation from thepregnant group. detection of pregnancy on abdominal palpation along with depressive nervous signs an...

zinc is one of the most important micronutrient with essential role in biochemical regulation of the body functions. the importance of zinc in pregnancy period was widely studied in various countries. variation in zinc plasma levels during pregnancy needs more investigation, because maternal zinc deficiencies may cause some severe abnormalities in the fetus. in this study the plasma levels of z...

We implement an interferometric method using two angular slits to measure the orbital-angular-momentum (OAM) mode spectrum of a field with partial angular coherence. As the angular separation of the slits changes, an interference pattern for a particular OAM mode is obtained. The visibility of this interference pattern as a function of angular separation is equivalent to the angular correlation...

a gyroscope is a device for measuring or maintaining orientation , based on the principles of conservation of angular momentum . the device is a spinning wheel or disk whose axle is free to take any orientation. this orientation changes much less in response to a given external torque than it would without the large angular momentum associated with the gyroscope's high rate of spin. since exter...

In this paper, torsion extrusion (TE) process on 1050 aluminum alloy was investigated by simulation as a severe plastic deformation (SPD) method and the effects of friction coefficient, angular velocity of the rotating die and punch speed on maximum punch force were studied. A finite element (FE) model was developed to simulate the TE process via DEFORM software. The FE results were validated co...

introduction: ectopic molar pregnancy is a rare occurrence and consequently not often considered as a diagnostic possibility. in this article, an attempt was made to stress on the need for histopathological examination and follow up of every case of ectopic pregnancy. this was substantiated with the help of a case report. case presentation: a 30-year-old gravida 4, para 3, pregnant woman with a...