نتایج جستجو برای: biological preservation

تعداد نتایج: 533145  

2017

Introduction Causes of impaired female reproductive function Environmental Endocrine Disrupters and Ovarian Function Indications of reproductive function preservation Choice of the method for ovarian function preservation Cryopreservation of Oocytes Introduction The need for oocyte cryopreservation Cryobiological factors influencing cryoefficiency Oocyte structures affected by cryopreservation ...

Journal: :IOP Conference Series: Earth and Environmental Science 2021

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم کشاورزی 1388

چکیده ندارد.

2004
Carlos A. C. Baptista Martin Skie Richard A. Yeasting Nabil Ebraheim W. Thomas Jackson Carlos Baptista

The preservation and demonstration of anatomical specimens that retain much of their natural features has been a long-standing goal of anatomists, pathologists and other medical educators. Preservation of most biological tissues is performed using liquids such as formaldehyde, alcohol, and glycerin. Although these commonly used liquids are efficient, they have many disadvantages (Baptista et al...

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