Our goal was to explore the interactions between the acoustic phenomena taking place in the ultrasound field, the concentration of the biological particles of the ultrasound field, and the cell biology effects of these interactions. Using output power of 9 W cm-2 and frequency of 1.117 MHz, the concentration was determined, expressed in g l-1, of lyophilized Saccharomyces cerevisiae baker's yeast needed for stopping cavitation in the sound field. Then by using multiples of the aforementioned concentration, we monitored the acoustic phenomena occurred in the sound field and, simultaneously, we examined the survival dynamics of the cells. Examined acoustic phenomena were the following: acoustic streaming, standing wave, and cavitation. Physical parameters (suspension density, dissolved oxygen, temperature) of the sound field had essential effect on the acoustic phenomena formed in the ultrasound field and on the threshold levels of their formation. The phenomena affected the composition of the material in the sound field, so an acoustical phenomenon - cell biological effect chain reaction took place during the radiation.
Authors:Szilvia Ormándi, Ildikó Cora, Zsolt Dallos, Ferenc Kristály, and István Dódony
, agriculture, paper production, and radioactive waste treatment, as well as in construction materials. The structural channels and voids are occupied by loosely bound cations and water molecules that can be removed and replaced without disrupting the
Authors:M. Gonzalez-Castro, L. Ordoñez-Acevedo, Y. Herrera-Vazquez, J. Ramirez-Telles, and A. Leon-Rodriguez
., Hofmeister, M.V. & Vinggaard, A.M. (2007): Endocrine-disrupting potential of bisphenol A, bisphenol A dimethacrylate, 4- n -nonylphenol, and 4- n -octylphenol in vitro : New data and a brief review. Environm. Health Perspect. , 115 , 69
Authors:Caturwati Ni Ketut, Yusuf Yusvardi, and Komara Fajar Muhamad
The availability of freshwater is increasingly becoming an international concern because of the increase in population and the diminishing forest area as a source of water, leading to a freshwater crisis. The coastal and swamp areas abound in water, but humans cannot consume it due to the quality. One effort that can be done in overcoming this problem is by treating existing raw water with solar distillation methods. However, the main obstacle faced in this method is the intensity of sunlight that is not stable throughout the day so that the productivity of distilled water is disrupted. Using the appropriate phase change material (PCM) is expected to make the distillation process smoother and increase the production of pure water. In this study, myristic acid was used as PCM in double slope solar distillation system. Through observation, it was obtained that the average water temperature in the basin equaled to 42.5 °C while the melting point of the myristic acid was 58 °C. This shows that the use of myristic acid as an energy storage through phase change process does not occur. Therefore, the use of myristic acid as PCM for increasing the productivity of solar distillation in these experiments is not effective because the melting point of PCM is higher than water temperature in the basin. Therefore, material with a phase change temperature below 42.5 °C is more appropriate to use in these conditions.
. Manually adjustable air inlet angle can be applied as a disruptive effect to the system. Figure 1 shows the experimental apparatus with PC. Fig. 1. Air flow and temperature control test setup 2.1 Control cycle of temperature In this cycle, the air flow is
Authors:David Torma, Gyula Gyori, and Kornil Sarvajcz
. Kishikawa , A. W. Higgins , , " Disruption of neurexin 1 associated with autism spectrum disorder ," Am. J. Hum. Genet. , vol. 82 , pp. 199 - 207 , 2018 . 10.1016/j.ajhg.2007.09.011  J. Szentagothai , M. Rithelyi , Funkcionalis Anatsmia II
Authors:Milica Budimir, Duška Kleut, Biljana Todorovic Markovic, and Rabah Boukherroub
temperature on the surface of K/rGO-CS interface has caused the disruptions of cell membranes on the bacterial cells attached to the K/rGO-CS interface, and consequently the bacterial cell death. The killing mechanism was hyperthermia, and the efficiency was
Authors:Imre Mojzes, Sándor Kökényesi, István A. Szabó, Istvan Ivan, and Béla Pécz
We present a simple method of nanocrystal growth during the heating of Au-covered GaAs single crystals in a closed quartz ampoule, previously evacuated to 10-1 Pa. The process is the final stage of surface transformations in such crystals which include the disruption of initially continuous, 50 nm thick Au layer and formation of Au-particle fractals in the relatively low 300-500 °C temperature range and a next step, when a variety of crystalline nanowires and even nanotubes grows on the crystal surface during the further short-period heating up to 550-650 °C. These nanostructures were identified by SEM and TEM measurements as b-Ga2O3 and a non-stoichiometric arsenic oxide. It is supposed that the growth of few nanometer thick arsenic oxide tubes follows the vapour-solid mechanism, whereas the catalytic Au-metal growth of thicker b-Ga2O3 nanowires was dominated by the vapour-liquid-solid mechanism.