پنجشنبه 2 مرداد 1393 - 26 رمضان 1435 - 24 ژوئیه 2014
جستجو :
 مقالات چاپ شده در مجلات

1.      Elaheh Ouladsahebmadarek, Arash Khaki, Laya Farzadi, Afshin Zahedi. Nutrition with polyunsaturated fatty acid and lower carbohydrate diet has controlled poly cystic ovarian syndrome, on poly cystic ovarian (PCO) induces rats. Life Science Journal. 2013;10(1)

2.      Fahime Sehhati Shafai, Samiyeh Kazemi , morteza Ghojazadeh. Comparing Maternal Outcomes in Nulliparous Women in Labor in Physiological and Conventional Labor: A Randomized Clinical Trial. J Mazandaran Univ Med Sci. 2013, 22(97): 122-131

3.      Arash Khaki, Elaheh Ouladsahebmadarek, AfshinZahedi, Behnam Ahmadnezhad. Effect of water melon seeds extracts (citrullus vulgaris) on sperms in diabetic rat. Indonesian J. Pharm. Volume 24 Issue 2, 2013: 122-126

4.      Arash Khaki, Elham Ghadamkheir, Elaheh Ouladsahebmadarek, Amir Hagighi, Behnam Ahmadnezhad. Recovery of sertoli cells by Allium cepa in Toxoplasma gondii infected rats. Journal of Clinical Medicine and Research. Vol. 5 (1), pp. 1-4, January 2013

5.      Arash Khaki, Amir Afshin Khaki, Afshin Zahedi. Effect of Ocimum basilicum on Ovary tissue Apoptosis after exposed with extremely low frequency electromagnetic fields (ELF-EMF) in Rats. Life Science Journal. 2013;10(3s)

6.      Arash Khaki, Roshanak Bayatmakoo, Mohammad Nouri, Amir Afshin Khaki. Remedial Effect of Cinnamon Zeylanicum on serum anti-oxidants levels in male diabetic Rat. Life Science Journal. 2013;10(4s)

7.      Laya Farzadi, Arash Khaki, Alia Ghasemzadeh, Zahra Bahrami As, Sharareh Khan ahamadi, Hamidreza, Ahmadi Ashteani. Effect of Allium Cepa seeds Ethanolic Extract, on Serum Total Antioxidant in Experimental induced Poly cystic ovarian (PCO) rats. Life Science Journal. 2013;10(4s)

8.      Alia Ghasemzadeh, Laya Farzadi, Arash Khaki, Sharareh Khan Ahmadi. Effect of Allium Cepa seeds Ethanolic Extract on Experimental Polycystic Ovary Syndrome (PCOS) Apoptosis induced by Estradiol-Valerate. Life Science Journal. 2013;10(4s)

9.      Mahlisha Kazemi Sheshvan, Manizheh Sayyah-Melli, Arash Khaki. The Effect of Gonadotropin-Releasing Hormone Agonists (GnRHa) on Bone Mineral Density (BMD) in Perimenopausal Women Undergoing Hysterectomy. Life Science Journal. 2013;10(4s)

10.  Simin Atashkhoyi, Mehri Jafari Shobeiri, Alireza Azari Kalejahi and Pouya Hatami Marandi. A comparison of pre-emptive with preventive epidural analgesia in the patients undergoing major gynecologic surgery. African Journal of Pharmacy and Pharmacology. Vol. 7(6), pp. 245-249, 15 February, 2013

11.  Dastranj Tabrizi Ali, Vahedi Amir, Esmaiely Heidar Ali, Sayyah Melli Maniegheh, Jafari shobeiri Mehri, Mostafa Gharabaghi Parvin, Ouladehsahebmadarek Elahe, Ghojazadeh Mortaza, Khaki Arash. Liquid based endometrial cytology in diagnosis of high-grade endometrial carcinoma with emphasis in recent advances and tissue correlation. Life Science Journal. 2013;10(4s)

12.  Fatemeh Ghaterh Samani, Roghaieh Jabbary, Omid Mashrabi. Study on uterine artery blood flow in myomatous uterus. Life Science Journal. 2012;9(4)

13.  Fatemeh Mallah, Fatemeh Nazari, Nazli Navali, Babak Hajipour.  Comparison Of Direct Visual Inspection (DVI) With Pap Smear In Diagnosis Of Precancerous Lesion Of Cervix. Life Science Journal. 2012;9(4)

14.  Navali, N., Shokoufe, L.A., Mallah, F., Bastani, P., Mashrabi, O. Comparing therapeutic effects of Metformin and Pioglitazone in Polycystic ovary syndrome (PCOS). Pakistan Journal of Medical Sciences. 2012, 28 (3) , pp. 390-394

15.  Korosh Khanaki, Ali Motavalizadeh Ardekani, Alieh Ghassemzadeh, Vahideh Shahnazi, Mohammad Reza Sadeghi, Masoud Darabi, Amir Mehdizadeh, Abotaleb Saremi, Jafar Soleimani-Rad , Ali Reza Imani, Mohammad Nouri, Ali Rahimipour. Effect of polyunsaturated fatty acids on secretory phospholipase A2 type IIa in ectopic endometrial cells. Iranian Journal of Reproductive Medicine. Vol. 10. No.4. pp: 321-328, July 2012

16.  Shaaker, M., Rahimipour, A., Nouri, M., Khanaki, K., Darabi, M., Farzadi, L., Shahnazi, V., Mehdizadeh, A. Fatty acid composition of human follicular fluid phospholipids and fertilization rate in assisted reproductive techniques. Iranian Biomedical Journal. 2012, 16 (3) , pp. 1-7

17.  Mohammadi, E., Rafraf, M., Farzadi, L., Asghari-Jafarabadi, M., Sabour, S. Effects of omega-3 fatty acids supplementation on serum adiponectin levels and some metabolic risk factors in women with polycystic ovary syndrome. Asia Pacific Journal of Clinical Nutrition. December 2012, 21 (4) , pp. 511-518

18.  Mahin Seyedhejazi, Reza Taheri, Hamzeh Hoseinzadeh, Elaheh Olad Saheb Madarek, Shiva Rad. Comparison of Rotational and Standard Techniques of Laryngeal Mask. Airway Insertion in Children. Biomedicine International. Vol 3, No 1 (2012)

19.  Elaheh Ouladsahebmadarek, Arash Khaki, Laya Farzadi, Zahra Fardiazar, Behnam Ahmad nejad. Effect of Omega−3, fatty acids on ovarian tissue in polycystic ovarian (PCO) rats. Asian Pacific Journal of Tropical Biomedicine. (2012)1-3

20.  Afshin Zahedi,Fatemeh Fathizad,Arash Khaki,Behnam Ahmadnejad.  Protective Effect of Ginger on Genatamicin-Induced Apoptosis in Testis of Rats. Advanced Pharmaceutical Bulletin. 2012, 2(2), 197-200

21.  Kobra Hamdi, Maryam Vaezi , Behrooz Dagigazar, Mahzad Mehrzad Sadagiani , Laya Farzadi , Maryam Pashaei-As. Association between Thrombophilia and Repeated Assisted Reproductive Technology Failures. Advanced Pharmaceutical Bulletin. 2012, 2(2), 233-237

22.  Manizheh Mostafa Gharehbaghi, Ali Peirovifar, Karim Sadeghi, Haleh Mostafidi. Insulin-like growth factor binding protein-3 in preterm infants with retinopathy of prematurity. Indian Journal of Ophthalmology. Vol. 60 No. 6, NOVEMBER 2012

23.  Seddigheh Abdollahi Fard, Parvin Mostafa Gharabaghi , Farnaz Montazeri, Omid Mashrabi. Hysteroscopy as a minimally invasive surgery, a good substitute for invasive gynecological procedures. Iran J Reprod Med. Vol. 10. No. 4. pp: 379-384, July 2012

24.  Arash Khaki, Alireza Farnam, Arash Davatgar Badie,Hussein Nikniaz. Treatment Effects of Onion (Allium cepa) and Ginger (Zingiber officinale) on Sexual Behavior of Rat after Inducing an Antiepileptic Drug (lamotrigine). Balkan Med J. 2012; 29: 236-42

25.  Zahra Fardiazar, Louiz Amanati, Saber Azami. Irrational parenthood cognitions and health-related quality of life among infertile women. International Journal of General Medicine. 2012:5 591–596

26.  Arash Khaki, Elaheh Ouladsahebmadarek, Amir afshin khaki, Laya farzadi, Alia ghasemzadeh. Effect of Rosmarinic acid on sertoli cells Apoptosis after exposed with electromagnetic fields (EMF) in Rats. Asian Pacific Journal of Tropical Biomedicine. (2012)1-4

27.  Sajjad Ahmadi, Seyed Hesam Rahmani, Alireza Moghbel, Nazli Navali , Shabnam Vazifekhah. Association between the type of child delivery and occurrence of breast cancer. Life Science Journal. 2012;9(4)

28.  Seyed Hesam Rahmani, Sajjad Ahmadi, Alireza Moghbel, Nazli Navali , Hossein Khodaverdi Zadeh. Association between hormone replacement therapy and occurrence of breast cancer. Life Science Journal. 2012;9(4)

29.  Nazli Navali. Assessment of relationship between Iron deficiency and preterm labor. Life Science Journal. 2012;9(4)

30.  Ahmad Poursadegh Zonouzi, Nader Chaparzadeh, Mehrdad Asghari Estiar, MahzadMehrzad Sadaghiani, Laya Farzadi, Alieh Ghasemzadeh, Masoud Sakhinia, Ebrahim Sakhinia. Methylenetetrahydrofolate Reductase C677T and A1298C Mutations inWomen with Recurrent Spontaneous Abortions in the Northwest of Iran. ISRN Obstet Gynecol. Epub 2012 Nov 14.

31.  Zahra Fardiazar, Homayoun Sadeghi, Bazargani, Reza Mohammadi. Domestic injuries and suicide among women of reproductive age in Iran. International Journal of General Medicine. 2012:5 547–552

32.  Dr Manije Mostafa Gharebagh , Dr Karim Sadeghi , Dr Nosratollah Zarghami , Dr Hale Mostafidi. Serum vascular endothelial growth factor-1 (vegf-1), leptin and insulin like growth factor measurement in retinopathy of prematurity. Urmia Medical Journal. 2012, 23(2): 183-190  (June-July 2012)

33.  Shabnam Jafari Zareh, Shamsi Abbasalizadeh, Fatemeh Abbasalizadeh, Omid Mashrabi. Predictive value of biophysical profile in determining the immediate postpartum neonatal outcomes in preterm premature rupture of membranes (PPROM). Life Science Journal. 2012;9(4)

34.  Manizheh Mostafa-Gharehbaghi, Parvin Mostafa-Gharabaghi, Fatemeh Ghanbari & Hossein Abdolmohammad-Zadeh, Gholam Hossein Sadeghi, Abulghasem Jouyban. Determination of Selenium in Serum Samples of Preterm Newborn Infants with Bronchopulmonary Dysplasia Using a Validated Hydride Generation System. Biol Trace Elem Res. (2012) 147:1–7

35.  Manizheh Sayyah-Melli, Mohammad-Reza Rashidi, Mohaddeseh Kaseb-Ganeh, Nadereh Rashtchizadeh, Simin Taghavi, Elaheh Ouladsahebmadarek, Morteza Ghojazadeh. The effect of erythropoietin against oxidative damage associated with reperfusion following ovarian detorsion. European Journal of Obstetrics & Gynecology and Reproductive Biology. 162 (2012) 182–186

36.  Effect of oxytocin (OT) and OT plus human chorionic gonadotropin (hCG), in cycles induced by letrozole or clomiphene citrate (CC). Manizheh Sayyah-Melli, Elaheh Ouladsahebmadarek, Simin Tagavi, Parvin Mostafa Garabaghi , Mahasti Alizadeh, Morteza Ghojazadeh and Maryamalsadat Kazemi-Shishvan. African Journal of Pharmacy and Pharmacology. Vol. 6(28), pp. 2112-2118, 29 July, 2012

37.  Fatemeh Abbasalizadeh, Farnaz Sahaf Ebrahimi, Shamsi Abbasalizadeh, Shabnam Vazifekhah and Mehrnaz Sohrabi Maralani. A pilot study of the efficacy of diclofenac suppository and intramuscular morphine for relieving the post-cesarean pain. African Journal of Pharmacy and Pharmacology. Vol. 6(17), pp. 1306-1311, 8 May, 2012

38.  Bastani P, Pourabolghase S, Abbasalizadeh F, Motvalli L. Comparison of neonatal and maternal outcomes associated with head-pushing and head-pulling methods for impacted fetal head extraction during cesarean delivery. Int J Gynaecol Obstet. 2012 Apr 19.

39.  Ghasemzadeh A, Farzadi L, Beyhaghi E. Premature ovarian failure risk factors in an Iranian population. International Journal of General Medicine. 2012:5 517–524

40.  Mehdi Sahmani, Reza Najafipour, Laya Farzadi, Ebrahim Sakhinia, Masoud Darabi, Vahideh Shahnazi, Amir Mehdizadeh, Maghsod Shaaker, Mohammad Noori. Correlation between PPAR? protein expression level in granulosa cells and pregnancy rate in IVF program. Iran J Reprod Med. Volume: 10   Issue: 2   Pages: 149-154 -MAR 2012

41.  Elaheh Ouladsahebmadarek, Manizheh Sayyah-Melli, Mehri Jafari-Shobeiri. A randomized clinical trial to compare immediate versus delayed removal of foley catheter following abdominal hysterectomy and laparotomy. Pak J Med Sci. April - June 2012 Vol. 28 No. 3 380-383

42.  Parvin Mostafa Gharabaghi, Manizheh Mostafa Gharabaghi, Arash Khaki. Role of first-trimester free beta subunit of human chorionic gonadotropin (β-HCG) and pregnancyassociated plasma protein-A (PAPP-A) as markers for intrauterine fetal growth restriction. African Journal of Pharmacy and Pharmacology. Vol. 6(14), pp. 1045 - 1049, 15 April, 2012

43.  Elaheh Ouladsahebmadarek, Mohammad Hossein Hoseinian, Kobra Hamdi, Morteza Ghojazadeh. Perinatal Outcome in Relation to Mode of Delivery in Meconium-Stained Neonates. Pak J Med Sci.January - March 2012 Vol. 28 No. 1 13-16

44.  Sedigheh Abdollahi Fard, Farnaz Sahaf Ebrahimi, Farnaz Montazeri and Omid Mashrabi. Diagnostic Features and Therapeutic Consequences of Hysteroscopy in Women with Abnormal Uterine Bleeding and Abortion. American Journal of Applied Sciences. 9 (1): 13-17, 2012

45.  Mehri Jafari Shobeiri, Nayyereh Razzaghpour. Study of demographic and risk factors in endometrial cancer at Al-Zahra hospital from 2007-2009. Pak J Med Sci. January - March 2012 Vol. 28 No. 1 79-82

46.  Elaheh Ouladsahebmadarek, Maryam Vaez, Khadijeh Pouya. Omental torsion in pregnant woman: A case report and review of literature. Pak J Med Sci. January - March 2012 Vol. 28 No. 1 206-208

47.  Shabnam Pour Abolghasem, Mohammad Reza Bonyadi, Zohre Babaloo, Abolfazl Porhasan, Behroz Nagili, Omid Ali Gardashkhani, Parviz Salehi, Mohammad Hashemi, Mojtaba Varshoghi, Gafar Olade Gaffari. IgG Avidity Test for the Diagnosis of Acute Toxoplasma gondii Infection in Early Pregnancy. Iranian Journal of Immunology. Vol. 8 No. 4 December 2011

48.  Navali N, Pourabolghasem S, Fouladi RF, Nikpour MA. Therapeutic effects of biguanide vs. statin in polycystic ovary syndrome: a randomized clinical trial. Pak J Biol Sci. 2011 Jun 1;14(11):658-63.

49.  Bushra, A. Hamdi, Jafar Soleimani-Rad, Amir Afshin Khaki, Leila, Roshangar and Arash khaki. Pathology of Testis in Newborn Mice Exposed to Electromagnetic Fields (EMF) During Developmental Period. Advances in Environmental Biology. 5(10): 3225-3230, 2011

50.  Elaheh Ouladsahebmadarek, Ali Dastranj Tabrizi, Khadijeh Pouya, MD, Arash Khaki. Mucinous Cyst adenoma of Appendix Mimicking An Ovarian Cyst: A Case Report. Advances in Environmental Biology. 5(10): 3117-3119, 2011

51.  Parvin Mostafa Gharabaghi, Fatemeh Tabatabei, Sedigheh Abdollahi Fard, Manizheh Sayyah-Melli, Elaheh Ouladesahebmadarek, Abbas Del Azar, Simin Atash Khoei, Manizheh Mostafa Gharabaghi, Morteza Ghojazadeh and Omid Mashrabi. Evaluation of the effect of preemptive administration of Rosa damascena extract on post-operative pain in elective cesarean sections. African Journal of Pharmacy and Pharmacology. Vol. 5(16), pp. 1950-1955, 29 October, 2011

52.  Laya Farzadi, Arash Khaki, Aleih ghasemzadeh, Elaheh Ouladsahebmadarek, Elham Ghadamkheir, Sina shadfar and Amir Afshin Khaki. Effect of rosmarinic acid on sexual behavior in diabetic male rats. African Journal of Pharmacy and Pharmacology. Vol. 5(16), pp. 1906-1910, 29 October, 2011

53.  Elaheh Ouladsahebmadarek, Manizheh Sayyah-Melli, Mehri Jafari, Morteza Gojazadeh andArash Khaki. Hysterectomy versus GnRH agonist for dysfunctional uterine bleeding in premenopausal women. African Journal of Pharmacy and Pharmacology. Vol. 5(12), pp. 1547-1552, 29 September, 2011

54.  Amir Mehdizadeh, Ali Rahimipour, Laya Farzadi, Masoud Darabi, Vahideh Shahnazi, Maghsod Shaaker, Amir-Mansour Vatankhah. Correlation between the level of cholesteryl ester transfer protein in follicular fluid with fertilization rates in IVF/ ICSI cycles. Iranian Journal of Reproductive Medicine. Vol.9. No.3. pp:193-198, Summer 2011

55.  Parvin Mostafa-Gharabaghi, Seddigheh Abdollahi-Fard, Manizheh Mostafa-Gharabaghi, Nadereh Rashtchizadeh, Morteza Ghojazadeh, Arash Khaki, Elham Ghadamkheyr. Is Serum Creatine Kinase a Reliable Indicator for Early Diagnosis of Ectopic Pregnancy? Advances in Environmental Biology. 5(9): 2732-2735, 2011

56.  Fatemeh Abbasalizadeh, Shamsi  Abbasalizadeh, Parvin Bastani and Mohammad Reza Bonyadi. Helicobacter pylori and CagAantibodies in Hyperemesis gravidarum (HG). African Journal of Microbiology Research. Vol. 5(15), pp. 2100-2102, 4 August, 2011

57.  Parvin Bastani, Kobra Hamdi, Fatemeh Abasalizadeh, Parisa Pourmousa, Fatemeh Ghatrehsamani. Transvaginal ultrasonography compared with Bishop score for predicting cesarean section after induction of labor. International Journal of Women’s Health. 3: 277–280, 2011

58.  Aleih Ghasemzadeh, Arash Khaki1, Laya Farzadi, AmirAfshin Khaki, Mehdi Marjani, Hamidreza Ahmadi Ashteani, Bushra A. Hamdi, Elham Ghadamkheir, Meisam Naeimikararoudi and Elaheh Ouladsahebmadarek.  Effect of rosmarinic acid on estrogen, FSH and LH in female diabetic rats. African Journal of Pharmacy and Pharmacology . Vol. 5(11), pp. 1427-1431, 22 September, 2011

59.  Sousan Rasooli , Farnaz Moslemi , Laya Farzadi. The effect of Preoperative Naproxen on Pain Relief after Diagnostic Gynecologic Laparoscopy. Iranina Journal of Obstetrics Gynecology and Infertility. 2011 (issue11)

60.  Gatreh-Samani F, Tarzamni MK, Olad-Sahebmadarek E, Dastranj A, Afrough A. Accuracy of 64-multidetector Computed Tomography in Diagnosis of Adnexal Tumors. J Ovarian Res. Aug 17;4(1):15, 2011

61.  Zahra Fardi Azar, Parvin Hakimi, Morteza Ghojazadeh and Fatemeh Ghatresamani. Pre- and Post-McDonald Cerclage Cervical Length, Width and Funneling Rate and their Association with Duration of Pregnancy. Pakistan Journal of Biological Sciences. Volume: 14,  Issue: 8, Page No.: 502-506, 2011

62.  Arash Khaki, Laya Farzadi, Shahin Ahmadi, Elham Ghadamkheir, Amir afshin Khaki,
Saedeh shojaee, and Reza Sahizadeh. Recovery of spermatogenesis by Allium cepa in Toxoplasma gondii infected rats. African Journal of Pharmacy and Pharmacology. Vol. 5(7), pp.903 - 907,  July 2011

63.  Arash Khaki, Zahra ghanbari, Maryam ghanbari, Elaheh Ouladsahebmadarek, Layla Javadi, Laya Farzadi, Fatemeh Fathiazad, Mohammad Nouri and Amir Afshin khaki. Anti-oxidative effects of citro flavonoids on spermatogenesis in rat. African Journal of Pharmacy and Pharmacology. Vol. 5(6), pp. 721-725,  June 2011

64.  Mehri Jafari Shobeiri, Ali Dastranj Tabrizi, Simin Atashkhoei, Manizheh Sayyah-Melli, Elaheh Ouladsahebmadarek, Morteza Ghojazadeh. Serum levels of Copper, Zinc and Copper/Zinc Ratio in Patients with Ovarian Cancer. Pak J Med Sci. Vol. 27 No. 3 561-565, April - June 2011 (Part-II)

65.  Elaheh Ouladsahebmadarek, Manizheh Sayyah-Melli, SiminTaghavi, Shamsi Abbasalizadeh, Mahin Seyedhejazie. The effect of supplemental iron elimination on pregnancy outcome. Pak J Med Sci. Vol. 27 No. 3 641-645, April - June 2011 (Part-II)

66.  Parvin Bastani, Kobra Hamdi, Fatemeh Abasalizadeh, Nazli Navali.  Effects of vitamin E supplementation on some pregnancy health indices: a randomized clinical trial. International Journal of General Medicine. 4 : 461–464, 14 June 2011

67.  P. Bastani & S. Pourabolghasem. Preterm Labor In An Iranian Population And Gender Variations In Affected Pregnancies. The Internet Journal of Gynecology and Obstetrics.
Volume 15 Number 1, 2011

68.  Mehdi Sahmani, Ebrahim Sakhinia, Laya Farzadi, Reza Najafipour, Masoud Darabi, Amir Mehdizadeh, Vahideh Shahnazi, Maghsod Shaaker, Mohammad Noori. Two common polymorphisms in the peroxisome proliferator-activated receptor γ gene may improve fertilization in IVF. Reproductive BioMedicine Online. 2011 Sep;23(3):355-60

69.  Atashkhoyi Simin, Azarfarin Rasool, Mehrzad Sadagiani Mahzad.  Efficacy of pre-incisional subcutaneous infiltration of low-dose ketamine on postoperative pain after cesarean section. Pak J Med Sci. Vol. 27 No. 2 344-347, April - June, 2011

70.  Sayyah-Melli Manizheh, Kazemi-Shishvan Maryamalsadat, Solaimani-Rad Jafar, Rashidi Mohammad-Reza, Roshangar Leila, Rashtchizadeh Nadereh, Ouladesahebmadarek Elaheh, Ghojazadeh Morteza and Mashrabi Omid. The Ovario-Protective Effect of Erythropoietin against Oxidative Damage Associated with Reperfusion Following Ovarian Torsion in Rat. American Journal of Animal and Veterinary Sciences. April, Volume 6, Issue 1,  18-24, 2011

71.  Ali Dastranj Tabrizi, Amir Vahedia, Hiedar Ali Esmailya. Malignant endometrial polyps: Report of two cases and review of literature with emphasize on recent advances. Journal of Research in Medical Sciences. April , Vol 16, No 4. 574-579, 2011

72.  Sayyah-Melli M, Kazemi-Sheshvan M, Bonyadi M, Ouladsahebmadarek E, Dasranj-Tabrizi A, Ghojazadeh M, Jafary-Shobeiry M, Mostafa-Gharabaghi P. Detection of human papillomavirus in the saliva of women with concurrent human papillomavirus related genital lesions. Saudi Med J. Feb;32(2):141-6, 2011

73.   K. Hamdi, P. Bastani, E.O. Saheb-Madarek and H. Hosseini. Prediction of Latency Interval in Preterm Premature Rupture of Membranes using Sonographic Myometrial Thickness. Pakistan Journal of Biological Sciences. Sep 1;13(17):841-6, 2010

PDF چاپ ارسال برای دوستان بازگشت