A novel imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalyst for ethylene and ethylene/1-hexene polymerization is investigated. The catalyst is prepared by modification of (SiO2/MgO/MgCl2)TiClx Ziegler-Natta catalysts via supporting vanadium species followed by reaction with p-tolyl isocyanate as imido agents, to get the merits from both the SiO2-supported imido vanadium catalyst and the ...

A percepção dolorosa, avaliada funcionalmente através do sistema analgésico endógeno, reflete a atividade nociceptivo, o qual depende nível de excitabilidade nervoso, portanto, procura vias e formas que reduzam deste tornou-se uma preocupação humana para assim aliviar da dor. Objetivo: Determinar limiar excitação nociceptivo em animais (camundongos) submetidos tratamento com diferentes doses cl...

The effects of different chloride salt mixtures (I-control: 100% NaCl, II: 50:50—NaCl:KCl, III: 50:30:20—NaCl:KCl:MgCl2, IV: 50:30:20—NaCl:KCl:CaCl2, V: 50:30:10:10—NaCl:KCl:MgCl2:CaCl2) on the quality properties sucuk (a dry fermented beef sausage) during ripening were investigated. Lactic acid bacteria reached 8 log cfu/g in 3 days fermentation all treatments. However, including MgCl2 caused ...

Molten chloride mixtures such as MgCl 2 –KCl–NaCl are potential thermal energy storage (TES) materials and heat transfer fluids (HTFs) for next-generation concentrating solar power (CSP) systems due to their high operation temperatures (>700°C) low costs. This ternary salt mixture with a material cost (<0.35 $/kg) is promising high-temperature TES/HTF applications, example, it cou...

cortical spreading depression (csd) has been suggested to underlie some neurological disorders such as migraine. despite the intensity with which many investigators have studied sd in the brain, only a few studies have aimed to identify sd in the spinal cord. here we described the main characteristic features of sd in the spinal cord induced by different methods including various spinal cord in...

Presenting a suitable hydrogel for water shutoff in Iranian oil field is based on gelation time and gel strength. Rheological behavior of was the main purpose this research. To determine time, thermal stability strength plan bottle tests were conducted by using central composite design method with two factors. The hydrogels composed AN125VLM chromium triacetate as copolymer crosslinker, respect...

A nanofluidic system consists of a nano-porous medium and functional liquid, which demonstrates higher energy absorption density compared to conventional systems for absorption. Alterations in the composition liquid can significantly impact properties system. In this paper, widely used zeolite ZSM-5 was chosen as porous establish Three distinct electrolyte solutions, namely KCl aqueous NaCl sol...

To understand the initial hydration processes of MgCl2, we measured photoelectron spectra of MgCl2(H2O)n- (n = 0-6) and conducted ab initio calculations on MgCl2(H2O)n- and their neutral counterparts up to n = 7. A dramatic drop in the vertical detachment energy (VDE) was observed upon addition of the first water molecule to bare MgCl2-. This large variation in VDE can be associated with the ch...

the synaptic circuitry of the SCN is largely unexplored. Most SCN Sprague-Dawley rats were housed under a 12-h light:dark cycle neurons use the neurotransmitter g-aminobutyric acid (GABA), and recordings were made predominantly during the light phase. and anatomic studies indicate many GABAergic synapses and local Coronal slices (150–400 mm) of hypothalamus were cut and mainaxon collaterals; ho...

Magnesium chloride (MgCl2) is commonly used as a general anesthetic in cephalopods, but its physiological effects including those at cardiac level are not well-characterized. We used an in vitro isolated perfused systemic heart preparation from the common octopus, Octopus vulgaris, to investigate: (a) if in vivo exposure to MgCl2 formulations had an effect on cardiac function in vitro and, if s...