Results 51 to 60 of about 26,901 (226)
Positive Doping Test Linked to Crumb Rubber From Artificial Football Pitch: Case Report
Drug Testing and Analysis, EarlyView.1,3‐DMBA was detected in urine samples of eight athletes following a doping control, resulting in one AAF and levels below WADA's MRL in seven teammates. Investigation revealed contamination from rubber infill used on the indoor artificial turf, with analysis confirming 1,3‐DMBA in the turf's crumb rubber originating from recycled tires.
Astrid Gjelstad +7 more
wiley +1 more source
Flexible backbone aromatic polyimide adhesives [PDF]
Continuing research at Langley Research Center on the synthesis and development of new inexpensive flexible aromatic polyimides as adhesives has resulted in a material identified as LARC-F-SO2 with similarities to polyimidesulfone, PISO2, and other ...
Progar, Donald J., St.clair, Terry L.
core +1 more source
Friend or foe? The current epidemiologic evidence on selenium and human cancer risk. [PDF]
, 2013 Scientific opinion on the relationship between selenium and the risk of cancer has undergone radical change over the years, with selenium first viewed as a possible carcinogen in the 1940s then as a possible cancer preventive agent in the 1960s-2000s ...
Ammar E M +48 more
core +1 more source
Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts
, 2017 The p-phenylenediamine (PDA) and dithiooxamide (DTO) were immobilized onto silica from rice husk ash (RHA) using 3-chloropropyltriethoxyilane (CPTES) to form a solid catalyst denoted as RHAPDA and RHADTO, respectively.
T. J. Al-Hasani +3 more
semanticscholar +1 more source
Boron phosphate/poly p-phenylenediamine as a corrosion inhibitive system for steel protection
Egyptian Journal of Chemistry, 2018 Corrosion never sleeps, therefore, industries rather than governments do their best to resist the different types of corrosion by all possible methods and techniques particularly in high-risk areas.
M. A. El-Ghaffar +4 more
semanticscholar +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Flame‐retardant bio‐based thermo‐flexible phase‐change composites for advanced battery thermal management. Batteries face critical challenges in thermal management, including overheating risks, poor interfacial contact, and mechanical vibration–induced performance attenuation.
Shichao Feng +7 more
wiley +1 more source
STPI/LARC: A 200 deg C polyimide adhesive [PDF]
A copolyimide, STPI/LARC, was prepared from the reaction of 3,3'4'benzophenonetetracarboxylic dianhydride (BTDA), equimolar quantities of m-phenylenediamine and 4,4'-oxydianiline, and a small amount of phthalic anhydride to control the molecular weight ...
Progar, D. J., St.clair, T. L.
core +1 more source
Lipoprotein docosapentaenoic acid is associated with serum matrix metalloproteinase-9 concentration [PDF]
, 2005 Background Polyunsaturated fatty acids (PUFA) are thought to play important roles in inflammation. The n-3 series is considered as anti-inflammatory, and some studies have reported increased plasma n-3 polyunsaturated fatty acid pattern in chronic ...
Solakivi, Tiina +8 more
core +1 more source
Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao +5 more
wiley +1 more source