With the goal of ensuring security passengers for automotive industry, present work addresses temperature and impact speed envelope allowing ductile failure plasticized PVC to be obtained. A database about 250 test results has been constructed various conditions at ten temperatures, four speeds two specimen geometries (with or without scoring). The desired was characterized by shape load versus...

Phthalates are materials with a wide spectrum of industrial applications. High molecular weight phthalates are primarily used as plasticizers in the manufacture of flexible vinyl. Low molecular weight phthalates are used in personal-care products, as solvents for cellulose acetate, and in making lacquers, varnishes, and coatings [1]. A quarter of the plasticizers produced are made of di-(2-ethy...

The indiscriminate disposal of plastic to the environment is of concern. Microscopic plastic litter (<5 mm diameter; 'microplastic') is increasing in abundance in the marine environment, originating from the fragmentation of plastic items and from industry and personal-care products [1]. On highly impacted beaches, microplastic concentrations (<1mm) can reach 3% by weight, presenting a global c...

Technology and new synthesis of new materials and their extreme applications and their adverse effects are worldwide, in recent scenario. This study tells us about the use of different polymers and their effect on environment. Due to the large number of applications of bisphenol-A (BPA), the human exposure routes are multiple. The study aimed to review shortly the food and non-food sources of B...

Mild to moderately severe hypoxemia was documented in 19 of 21 mostly asymptomatic firemen who were exposed to dense smoke containing polyvinylchloride and other pulmonary irritants. The hypoxemia was transient, with nearly complete reversibility within 24 hours. Subsequent tests for pulmonary function one month later demonstrated that this transient hypoxemia was not related to previous underl...

Over the past two decades, the taxanes have played a significant role in the treatment of various malignancies. However, the poor solubility of these compounds necessitates the inclusion of surfactant vehicles in their commercial formulations. Cremophor EL and polysorbate 80 have long comprised the standard solvent system for paclitaxel and docetaxel, respectively. A number of pharmacologic and...

This study involved fabricating barbed microtip-based electrode arrays by using silicon wet etching. KOH anisotropic wet etching was employed to form a standard pyramidal microtip array and HF/HNO3 isotropic etching was used to fabricate barbs on these microtips. To improve the electrical conductance between the tip array on the front side of the wafer and the electrical contact on the back sid...

OBJECTIVE To investigate anorectal function in women patients with systemic sclerosis (SSc), with and without lower gastrointestinal symptoms. METHODS Anorectal manometry was performed in 16 patients with SSc: six with no or minimal bowel symptoms, seven with constipation, and three with diarrhoea and faecal incontinence. Eleven healthy women acted as control subjects. Pressure data were reco...

Sorption of ethylene oxide during and after gaseous sterilization is influenced by numerous factors. It was found that ethylene oxide desorption not only depends on material to be fumigated but also to a considerable degree on the wrapping material. Although polyethylene, polyamide (nylon), polytetrafluoroethylene (Teflon), silicone, aluminum, and glass beads contained no quantities of ethylene...