Metal ions present on smectite clay (montmorillonite) platelets have preferential reactivity towards peroxy/alkoxy groups during polyamide 6 (PA6) thermal decomposition. This changes the decomposition pathway and negatively affects the ignition response of PA6. To restrict these interfacial interactions, high-temperature-resistant polymers such as polyetherimide (PEI) and polyimide (PI) were us...

America's first urban centres were allegedly located at the Supe Valley sites in Peru. After investigating location and orientation of main built structures, we show that it is not only presence River determines their but also astronomical relationships within buildings dictate setting valley. The southernmost position moonrise on horizon seems to be most important target. There possibility an ...

The possible role of complement activation in the development of transient granulocytopenia during nylon fiber filtration leukapheresis ( FL) was studied in five normal donors. No changes in hemolytic complement (CH50) titers were observed in the donors’ circulating plasma at any point in the procedure. However, comparison of preand postfilter blood samples drawn 1 mm after donor blood passed t...

In the examination of sexual assault cases, DNA typing of vaginal samples mostly occurs after differential DNA extraction. Notwithstanding the differential extraction method, the DNA profiles from the seminal fraction often show the male alleles at low-level in combination with female alleles. This unfavorable ratio male to female DNA is due to a limited amount of sperm cells and an overwhelmin...

the present study was conducted to investigate the possibility of using a modified in vitro gas production technique in place of the nylon bag method to estimate protein degradability of alfalfa hay in ruminants. in the in situ experiment dacron bags were filled with 3 g alfalfa hay. this was incubated in the rumen of three ruminally cannulated ghezel rams for the periods of 0, 2, 4, 8, 12, 16,...

BACKGROUND Suturing techniques are one of the most commonly used means to reshape the nasal cartilage; however, no data exist regarding the optimal suture material and its long-term effect. OBJECTIVES The aim of the present study was to determine whether any absorbable materials will provide the same long-lasting effect on cartilage reshaping as permanent materials. METHODS Thirty-six New Z...

In this study, influence of nano-zinc oxide treatment on the UV protection properties widely used apparel fabrics including flax, polyester, and nylon, were investigated by means ultraviolet factor (UPF) assessment. Nanoparticle content nylon determined to be 1.2, 0.9, 1.5 wt%, respectively. The UPFs non-treated in range 2.2 entire region. An improvement UPF was obtained after introducing nanop...