نتایج جستجو برای: spontaneous
تعداد نتایج: 114583 فیلتر نتایج به سال:
In this paper, we study the robust technique of stimulated Raman adiabatic passage in an optical cavity considering decoherence effects of atomic spontaneous emission and cavity decay. Numerical solution of Liouville equation shows that the population transfer of the system is more sensitive to the cavity decay than the atomic spontaneous emission.
the entanglement between a ?-type three-level atom and its spontaneous emission fields is investigated. the effect of spontaneously generated coherence (sgc) on entanglement between the atom and its spontaneous emission fields is then discussed. we find that in the presence of sgc the entanglement between the atom and its spontaneous emission fields is completely phase dependent, while in absen...
spontaneous adrenal hematoma is a very rare condition and its prevalence has been reported to be about 1% in previous studies. although various causes have been proposed to explain its incidence in existing case reports, the etiology and pathology of this condition is still not known. the present study presents a case of spontaneous adrenal hematoma in a pregnant 31 year old woman without histo...
conclusions spontaneous rupture of pyometra duo to cervical cancer in cases of acute abdomen in elderly patients should be considered. introduction pyometra is an accumulation of purulent material or pus in the uterine cavity. spontaneous perforation of uterus by pyometra is rare. this is a clinical presentation and management of a spontaneous perforation of uterine caused by pyometra. case pre...
introduction: recurrent abortion (ra) may be a consequence of aberrant expression of immunological factors during pregnancy. although the relative importance of immunological factors in human reproduction remains controversial, substantial evidence suggests that autoantibodies contribute to reproductive failure. production of such antibodies is under the control of cytokines; and leptin, beside...
background: candida albicans is one of the most important opportunistic pathogens that suppress immunologic mechanisms of the host. it is speculated that structural and secretory proteins of c. albicans have immunomodulatory effects in cancer. objective: to evaluate the effects of c. albicans structural and secreted proteins on intratumoral cd4/cd8 ratio as well as the survival rate in balb/c t...
conclusions the use of leukocyte esterase urine dipstick test can be a quick and easy method in early diagnosis of sbp to start the treatment until preparation of sbp-cell count results. results in this study, 100 patients with ascites due to cirrhosis, with an average age of 38.9 ± 6.54 years were evaluated. twenty cases had positive results, of whom 17 cases were also detected based on the st...
background: approximately 205 million pregnancies occur each year in the worldwide. on the other hand, spontaneous abortion has been reported in 15-20% of all diagnosed pregnancies. the most common cause of spontaneous abortion is chromosomal abnormalities of the embryo. robertsonian translocation carriers specially 21-14 are the most common balanced rearrangement among the carrier couples with...
recurrent spontaneous rupture of the urinary bladder has rarely been reported in english articles. this condition may be difficult to diagnosis before a laparotomy due to acute peritonitis. herein we describe a case of recurrent spontaneous rupture of the bladder in a 39-year-old woman with human t-lymphotropic virus type 1 (htlv-1) -associated myelopathy/topical spastic paraparesis (ham/tsp).
One of the major causes of spontaneous abortion before the fourth month of pregnancy is chromosomal abnormalities. We report an unusual case of a familial balanced chromosomal translocation in a consanguineous couple who experienced 4 spontaneous abortions. Chromosomal studies were performed on the basis of G-banding technique at high resolution and revealed 46, XX, t (16 6) (p12 q26) and 46, X...
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