نتایج جستجو برای: Colloid

تعداد نتایج: 7594  

Journal: :iranian journal of nuclear medicine 2003
gholamali shabani hossein hamzeh reza najafi

introduction: the lymphatic system provides one of the main paths for the spread (metastasis) of cancer from one part of body to another. hodgkin’s diseases, lymphocytic leukemia, various metastatic disease and many lymph node disorders can be assessed by lymphoscintigraphy. radionuclide lymphoscintigraphy has been used for many years to define lymphatic drainage of melanoma. the most common ra...

2004
LENA Q. MA YAN DONG QIXING ZHOU

Potential release of soil colloids into groundwater has attracted considerable attention because of their association with heavy metals. Much effort has been focused on using colloid-depositionbased parameters (batch experiment) to predict colloid release in soils (column experiment), though they are two separate processes. In this paper, relative colloid stability ratio was estimated and used ...

2001
Ning Sun Ne-Zheng Sun Menachem Elimelech Joseph N. Ryan

Effective use of colloid transport models for heterogeneous subsurface porous media requires the development of methodologies to identify the key model parameters. The inverse problem of a two-dimensional model for colloid transport in geochemically heterogeneous porous media is systematically investigated in this paper. Sensitivity analysis prior to the parameter identification provided valuab...

Journal: :medical journal of islamic republic of iran 0
sohrab sadeghi from the dept. of neurosurgery, loghman-hakim medical center; shahid beheshti university of medical sciences, tehran, iran. guive sharifi from the dept. of neurosurgery, loghman-hakim medical center; shahid beheshti university of medical sciences, tehran, iran. ali aliasgari

familial colloid cyst of the third ventricle is very rare. this is one of the two largest families reported and the first in which all affected members are siblings. one asymptomatic sister was found by screening, emphasizing the value of screening. a brother and two sisters from a family consisting of three brothers and three sisters who were diagnosed as having colloid cyst of the third ventr...

Journal: :Environmental science & technology 2003
Scott A Bradford Jirka Simunek Mehdi Bettahar Martinus Th Van Genuchten Scott R Yates

A conceptual model for colloid transport is developed that accounts for colloid attachment straining, and exclusion. Colloid attachment and detachment is modeled using first-order rate expressions, whereas straining is described using an irreversible first-order straining term that is depth dependent. Exclusion is modeled by adjusting transport parameters for colloid-accessible pore space. Fitt...

Journal: :international clinical neurosciences journal 0
guive sharifi mehrdad hosseinzadeh bakhtevari shahid beheshti medical university.loghman hakim hospital mohammad samadian associate professor of neurosurgery, department of neurosurgery, loghman hakim hospital, shahid beheshti university of medical sciences tehran-iran reza jabbari clinical assistant professor of neurosurgery, department of neurosurgery, loghman hakim hospital, shahid beheshti university of medical sciences tehran-iran. omidvar rezaei professor of neurosurgery, department of neurosurgery, loghman hakim hospital, shahid beheshti university of medical sciences tehran-iran.

purpose: the aim of this study was to investigate the feasibility and effectiveness of endoscopic neurosurgery for patients with third ventricular colloid cysts without ventriculomegaly. methods: seventy-one patients with third ventricular colloid cysts were identified and recruited to this study. eighteen of these patients did not have concomitant hydrocephalus and underwent primary endoscopic...

ALI ALIASGARI, GUIVE SHARIFI, SOHRAB SADEGHI,

Familial colloid cyst of the third ventricle is very rare. This is one of the two largest families reported and the first in which all affected members are siblings. One asymptomatic sister was found by screening, emphasizing the value of screening. A brother and two sisters from a family consisting of three brothers and three sisters who were diagnosed as having colloid cyst of the third v...

In this research, cerium recycling was studied by Adsorbing Colloid Flotation (ACF). Ten important parameters including collector type and dosage, cerium and colloid concentrations, frother type, activator type, preparation and frothing time, air flowrate and pH, each in two levels, were investigated. Statistical design of experiment was implemented for process modelling and analysis of var...

Gholamali Shabani Hossein Hamzeh Reza Najafi

Introduction: The lymphatic system provides one of the main paths for the spread (Metastasis) of cancer from one part of body to another. Hodgkin’s diseases, lymphocytic leukemia, various metastatic disease and many lymph node disorders can be assessed by lymphoscintigraphy. Radionuclide lymphoscintigraphy has been used for many years to define lymphatic drainage of melanoma. The most com...

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