نتایج جستجو برای: nuclear techniques

تعداد نتایج: 855049  

2003
Rex A. Dunham

There are many ways to genetically modify fish including inbreeding, gynogenesis, androgenesis, selection, intraspecific crossbreeding, interspecific hybridization, polyploidy, sex reversal and breeding, nuclear transplantation and transgenesis. Cloned populations have been produced via gynogenesis and androgenesis (Dunham 2004 in press), but direct cloning of an individual fish of interest has...

2007
N. Panté

In interphase eukaryotic cells, the nucleus is separated from the cytoplasm by a double nuclear membrane system called the nuclear envelope. The nuclear envelope enables the two cell compartments to have their distinct composition, and separates the genetic machinery from protein synthesis. Molecular exchange between the nucleus and the cytoplasm, however, is essential for keeping eukaryotic ce...

2017
Sara Darbandi Mahsa Darbandi Hamid Reza Khorram Khorshid Abolfazl Shirazi Mohammad Reza Sadeghi Ashok Agarwal Safaa Al-Hasani Mohammad Mehdi Naderi Ahmet Ayaz Mohammad Mehdi Akhondi

Nuclear transfer procedures have been recently applied for clinical and research targets as a novel assisted reproductive technique and were used for increasing the oocyte activity during its growth and maturation. In this review, we summarized the nuclear transfer technique for germinal vesicle stage oocytes to reconstruct the maturation of them. Our study covered publications between 1966 and...

Journal: :iranian journal of medical physics 0
farshid babapour mofrad ph.d., candidate, faculty of engineering, science and research branch, islamic azad university, tehran, iran ali abbaspour tehrani-fard assistant professor, faculty of engineering, science and research branch, islamic azad university, tehran, iran babak ebrahimi m.sc., faculty of engineering, science and research branch, islamic azad university, tehran, iran dariush sardari assistant professor, faculty of engineering, science and research branch, islamic azad university, tehran, iran

introduction: spect is a diagnostic imaging technique the main disadvantage of which is the existence of poisson noise. so far, different methods have been used by scientists to improve spect images. the wavelet transform is a new method for de-noising which is widely used for noise reduction and quality enhancement of images. the purpose of this paper is evaluation of noise reduction in spect ...

Journal: :Nuclear Receptor Signaling 2006
Luz E. Tavera-Mendoza Sylvie Mader John H. White

Large-scale genomics analyses have grown by leaps and bounds with the rapid advances in high throughput DNA sequencing and synthesis techniques. Nuclear receptor signaling is ideally suited to genomics studies because receptors function as ligand-regulated gene switches. This review will survey the strengths and limitations of three major classes of high throughput techniques widely used in the...

Journal: :Genes & development 2004
Nuria Sánchez-Velar Enyeneama B Udofia Zhong Yu Maria L Zapp

Human immunodeficiency virus Rev facilitates the cytoplasmic accumulation of viral RNAs that contain a Rev binding site. A human Rev-interacting protein (hRIP) was originally identified based on its ability to interact with the Rev nuclear export signal (NES) in yeast two-hybrid assays. To date, however, the function of hRIP and a role for hRIP in Rev-directed RNA export have remained elusive. ...

2013
Mukhtar Ahmed Rana Gul Sher Shahid Manzoor Fariha Malik Kanwal Naz

The potential of the high resolution nuclear track detector (NTD) CR-39 is examined carefully for the measurement of relativistic nuclear projectile fragmentation cross sections and studies of related processes using the experience of many years of such measurements. The charge resolution and the charge resolving power of CR-39 detectors for the measurements of 158 A GeV Pb projectiles and thei...

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