A totally green process based on reactive extrusion was used for the production of cassava starch hydrogels through reaction with two organic crosslinking agents, citric (CA) and tartaric (TA) acids. CA TA were at different concentrations (0, 2.5, 5.0, 10.0, 15.0, 20.0%). Degree substitution (DS) ranged from 0.023 to 0.365. Fourier transform infrared spectroscopy results showed a new band appea...

expansible soils are those which will suffer considerable swelling and volume change when subjected to water. the resulting swelling pressure may cause complete destruction of such light structures as irrigation canal linings, floor slabs, etc. based upon previous investigations, swelling of clayey soils has been blamed for failure of many irrigation canals in iran and in other countries of the...

Introduction: Hemangiomas are the most common tumors of infancy and infantile hemangiomas are the most common vascular tumors. The etiology of this tumor is unknown. Hemangiomas commonly occur in the skin followed by the deep tissues (intramuscular) and rarely within bones. Case Presentation: Hereby, the case of a 6-month-old girl whose whole left lower limb f...

soil is known as the base material for many structure, on the other hand, some soils cause problems for some structures such as roads. some types of soils absorb moisture and swell then they may shrink when losing water. the changes of moisture in these soil samples cause changes their volume and pressure to layers of the pavement and eventually leads to destruction of roads. therefore, it is n...

Due to the fact that many application processes take place at different temperature, better examining and understanding of swelling properties as a function of temperature is essential for such application. The temperature effect on the swelling properties of commercial polyacrylic acid (PAA) hydrogel beads was investigated as a function of time and temperature. Gel bead size, swelling equilibr...

Due to the fact that many application processes take place at different temperature, better examining and understanding of swelling properties as a function of temperature is essential for such application. The temperature effect on the swelling properties of commercial polyacrylic acid (PAA) hydrogel beads was investigated as a function of time and temperature. Gel bead size, swelling equilibr...

Hereditary angioedema is an episodic swelling disorder with autosomal dominant inheritance. Attacks are characterized by brawny, self-limited, nonpruritic edema of the deep dermal layers of the skin that most often involve the hands and feet. They usually begin in childhood and become more severe after puberty. Patients also have episodic attacks of severe abdominal pain caused by edema of the ...

Orbital myositis is an inflammation of mainly the extraocular muscles. Orbital myositis has a sudden onset, and the clinical course can be acute or chronic. The ocular signs and symptoms of eyes with orbital myositis are periocular pain, eyelid swelling and redness, restricted ocular motility, and strabismus. Computed tomographic (CT) scans show indistinct swelling around one or more extraocula...