54 research outputs found
Biological Stage
The present study aimed the cost-effective removal of nitrogen and phosphorus nutrients, along with organic matter, from biologically pretreated domestic wastewater by chemical post-treatment. To achieve this objective, following the secondary settling biologically pretreated wastewater was subjected to chemical treatment by lime. And thereby we aimed to decrease phosphate, ammonium, and COD concentrations to low levels in the final effluent.Sewage wastewater was fed into the activated sludge aeration column on a continuous-flow basis. Effluent was withdrawn from the side of the tank with a pump that helped operate the biological stage at a constant hydraulic retention rate under four different flowrate operations. The hydraulic retention time-controlled operation resulted in an almost constant sludge-age operation. This operation avoided nitrification, while the applied retention time was sufficient to convert nitrogen and phosphorus in the raw wastewater into ammonium and orthophosphate forms, respectively, in the biological stage. Following the secondary settling, lime was added to the supernatant and pH was increased to 10.5. Ammonia nitrogen was removed by air stripping, and removal of phosphate was achieved with chemical precipitation. Applied post chemical treatment by lime also helped decrease the supernatant organic matter content
The Emergence of Depression and Anxiety Disorder in a Patient Following Bariatric Surgery : A Case Report
Psychiatric comorbidities are commonly encountered in obese patients admitted for bariatric surgery among which major depressive disorder and anxiety disorder are the most common types. Although most studies demonstrate a significant reduction in psychiatric complaints at postoperative follow-up, the relationship or mechanism of such effect is not definitive. We report the emergence of major depressive disorder and anxiety disorder in a 57-year old female patient at sixth-month follow-up with no family history of psychiatric disorder or preoperative psychiatric disorder. Symptomatic control has been achieved with selective serotonin reuptake inhibitor therapy. Hereby, we recommend close psychiatric follow-up of bariatric surgery candidates at pre and postoperative periods
Executive functions in developmental attention-deficit/hyperactivity disorder: comparison with adhd associated with rolandic epilepsy or rolandic spikes
POLUDANUM’S INFLUENCE ON REPRODUCTIVE AND RESPIRATORY SYNDROME, TRANSMISSIBLE GASTROENTERITIS AND AFRICAN SWINE FEVER VIRUSES IN PRIMARY AND CONTINUOUS CELL CULTURES
Today studies of the influence of interferon synthesis inducer on human and animal body is a topical issue. Interferon synthesis inducers are substances of natural or artificial origin stimulating production of body’s own interferon. One of the synthetic inducers of interferon is Poludanum. It is used for stimulation of cell immunity which is capable of preventing infection and disease development and has antiviral and immunomodulatory effect. Poludanum mainly stimulates induction of α-interferon and, to a lesser extent, β- and γ-interferon in cells and tissues which prevent virus reproduction in a cell. The paper presents results of poludanum’s influence on reproduction of some porcine viruses in primary and continuous cell cultures by induction of interferon synthesis and other cytokines lowering the level of cell infection. As a result of performed tests it was found out that there is a link between introduction of interferon inducer and change in the PRRS, TGE, ASF virus reproduction. There was detected a high level of Poludanum’s interferon inducing activity in pig testicular primary cell cultures and spleen compared to the continuous pig embryo kidney (SPEV) and rhesus monkey kidney (MARC-145) cell lines. Poludanum’s interferon inducing activity was moderate for MARC-145 cells and it was not determined for SPEV
Efficient and Mild Synthesis of Novel Schiff Bases Via One-Pot, Three-Component Reaction Under Solvent-Free Conditions
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