Through specific chemical and microbiological determinations, the interaction of the extremely low-frequency (ELF) electric field (EF) of 49.9 Hz and 99.9 Hz with the living matter of the activated ...sludge from a wastewater treatment plant was studied. The determinations showed that a 49.9 Hz EF significantly stimulates both the multiplication of microorganisms (more than 2x, compared to the reference) and the rate of pollutant metabolism, as opposed to a 99.9 Hz EF, where the stimulation of the multiplication of microorganisms is insignificant (below 1.1x, compared to the reference), instead, more strongly stimulates the metabolism of pollutants.
The paper provides an overview of the current understanding of different cells’ biology (e.g., keratinocytes, Paneth cells, myoepithelial cells, myofibroblasts, chondroclasts, monocytes, atrial ...cardiomyocytes), including their origin, structure, function, and role in disease pathogenesis, and of the latest findings in the medical literature concerning the brown adipose tissue and the juxtaoral organ of Chievitz.
In this paper, a system to stimulate in extremely low frequency (ELF) electric field the microbiological activity of the microbial flora in the active sludge of a wastewater treatment plant is ...presented. The designed and realized system was tested in industrial environment with and without ELF electric field stimulation. By comparing the two cases for the same degree of pollutants elimination from the wastewater, it resulted that the ELF electric field application significantly reduces the processing times in the biological treatment stages (to approximately half). Thus, the energy consumption in the biological treatment stage is reduced by approx. 50%, representing approx. 30% of the wastewater treatment plant energy consumption.
The energy consumption of a high-capacity wastewater treatment plant (up to 900,000 \mathrm{m}^{3} wastewater/month), equipped with biogas production and energy recovery installations, was analyzed ...via long-term monitoring (76 months). The recorded data during the monitoring period show that the total active electricity (EE) consumption of 8,130,324 MWh (at an average power factor of 83.81%) was provided 48.4% from the electricity network, 51.41% from biogas, and 0.19% from the Safety Diesel generator. The specific global energy consumption recorded was 0.213 kWh/m 3 treated wastewater, where the share of consumption related to biological aerobic and anaerobic processing stages is predominant (62.17%).
The power quality of a low-capacity domestic wastewater treatment plant with autonomous operation through automatic control of the technological process was analyzed by monitoring/recording the main ...electrical parameters. Determinations showed that, under concrete operating conditions (average effluent flow 9.8 m^{3}/h, 5.9^{\circ}C water temperature in aerobic and anaerobic bioreactors), the average active power absorbed is 11.103 kW at an average power factor of 0.73- which leads to a specific consumption of 1.125 kWh/m 3 treated water. The evolution of the active power, reactive power, apparent power, power factor, total harmonic distortion of the voltage (THD V), and total harmonic distortion of the current (THD A) parameters show fluctuations determined by the consumers' operating sequences. The frequent starts/stops of inductive consumers by electromagnetic contactors produce transients reflected on the evolution diagrams of the power factor and THD (both in voltage and current).
Gastric cancer is one of the most aggressive malignancies, as incidence and as evolution as well. Although, due to the new findings about etiology, carcinogenesis, precancerous conditions and their ...detection, as well as the treatment, in the latest decade, there is an improvement in these data, gastric cancer remains a redoubtable enemy because of its incidence, prevalence and mortality. Researches are focusing on early detection of precursor lesions and on establishing their reversibility potential by bringing more clinical and statistical information and by setting new clinical hypotheses. In this context, the present article is trying to study immunohistochemical expression of two oncogenic markers, the cell adhesion protein antibodies E-cadherin and beta-catenin. Cell to cell and cell to extracellular matrix interactions are crucial for neoplastic transformation and for metastasizing process. The importance of these antibodies in maintaining cell adhesion suggests that their abnormal expression is playing an important role in tumorigenesis. In this article, authors are presenting a study about E-cadherin and beta-catenin expression in 75 patients who underwent gastrectomy for suspicions of gastric malignancies. The variables of the study are the presence or absence of Helicobacter pylori, type I carcinogenetic agent for gastric carcinoma (especially intestinal type adenocarcinoma) and the presence of tumoral or non-tumoral gastric lesions.
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