Effects of ambient conditions on solar assisted heat pump systems: a review.

Solar assisted heat pump (SAHP) systems aim to increase the performance of heat pumps by supporting with solar energy using various heating modes, whose performances depend on ambient conditions. In the literature, SAHP systems are classified by structure types, and the heating mode options are not considered as the main priority of the design but a result of the structure of the system. This paper aimed to investigate the effect of ambient conditions on heating modes, and identify the preferable ambient condition ranges for each SAHP system depends on their heating modes, by using a narrative review of 47 recent studies, that shed light on the problem.

Drying municipal sewage sludge with v-groove triple-pass and quadruple-pass solar air heaters along with testing of a solar absorber drying chamber.

Everyday a large amount of sewage sludge is produced in cities and proper and environmentally friendly municipal wastewater treatment is needed. Finding a convenient and affordable way for sewage sludge refinement to reduce environmental pollution or even utilization of sewage sludge will be a very attractive challenge for scientists. In the recent years, sustainable and renewable energy sources like solar energy are extensively utilized in different fields including heating, electricity generation, and drying applications.

Investigation of flurbiprofen genotoxicity and cytotoxicity in rat bone marrow cells.

This study was performed to investigate cytogenetic effects of NSAID flurbiprofen which was used as active ingredient in some analgesic, antipyretic and anti-inflammatory drugs. Genotoxic effect of flurbiprofen was investigated using in vivo chromosome aberration (CA) test and random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR) test. Also, oxidative stress potential of flurbiprofen was determined by measuring total oxidant and antioxidant level which occurred with flurbiprofen treatment in rat peripheral blood.

The genotoxic and antigenotoxic effects of Salvia fruticosa leaf extract in human blood lymphocytes.

The aim of this study was to investigate the genotoxic and antigenotoxic effects of Salvia fruticosa (Sf) leaf extract with the absence and presence of S9 mix using sister chromatid exchange (SCE), chromosome aberration (CA) and micronucleus (MN) formation test systems in human peripheral blood lymphocytes (HPBLs) that were treated with 1.5-, 3.0- and 6.

The genotoxic and teratogenic effects of maltitol in rats.

In the present study, the genotoxic and cytotoxic effects of the low-caloric artificial sweetener maltitol, which is a sugar alcohol (polyol), were investigated in the bone marrow cells of rats using the chromosome aberration (CA) test. In addition, the teratogenicity and embryotoxicity of maltitol was also investigated in rats. To reveal the genotoxicity and cytotoxicity of maltitol, rats were intraperitoneally administered 2.

The genotoxic and antigenotoxic effects of tannic acid in human lymphocytes.

The genotoxicity of tannic acid (TA, tannin) were investigated using chromosome aberration (CA), sister chromatid exchange (SCE), and micronucleus (MN) test systems in human peripheral lymphocytes. Also, the antigenotoxicity of TA against known mutagen EMS was also examined. The lymphocytes were treated with 1.

The effects of thymol on sister chromatid exchange, chromosome aberration and micronucleus in human lymphocytes.

The genotoxic effects of thymol were investigated in human peripheral lymphocytes treated with 25, 50, 75, and 100 microg/ml concentrations of thymol for 24 and 48h treatment periods by using sister chromatid exchange (SCE), chromosome aberration (CA), and micronucleus (MN) tests. Nuclear division index (NDI), replication index (RI), and mitotic index (MI) were also calculated in order to determine the cytotoxicity of thymol. Thymol significantly increased the SCE, especially at the lower concentrations.

The effects of boric acid on sister chromatid exchanges and chromosome aberrations in cultured human lymphocytes.

The aim of this study was to determine the possible genotoxic effects of boric acid (BA) (E284), which is used as an antimicrobial agent in food, by using sister chromatid exchange (SCEs) and chromosome aberration (CAs) tests in human peripheral lymphocytes. The human lymphocytes were treated with 400, 600, 800, and 1000 mug/mL concentrations of BA dissolved in dimethyl sulfoxide (DMSO), for 24 h and 48 h treatment periods. BA did not increase the SCEs for all the concentrations and treatment periods when compared to control and solvent control (DMSO).

Confirmation of the chromosome damaging effects of lamivudine in in vitro human peripheral blood lymphocytes.

The aim of this study was to investigate genotoxic effects of lamivudine (an analogue of cytidine) using in vitro sister chromatid exchange (SCE), chromosome aberration (CA), and micronucleus (MN) tests in human peripheral lymphocytes. The cells were treated with 75, 100, 125, and 150 microg/ml concentrations of lamivudine (roughly 30-60 times higher than plasma levels achieved in patients receiving this drug) for two (24- and 48-hr) treatment periods. Lamivudine induced SCEs at the highest concentration (150 microg/ml) in the 24-hr treatment, and at 125 and 150 microg/ml in the 48-hr treatment, when compared to the solvent control.

The in vivo genotoxic effects of carvacrol and thymol in rat bone marrow cells.

The aim of this study was to investigate the in vivo genotoxic effects of carvacrol and thymol in bone marrow cells of rats. In the present study, both carvacrol (10, 30, 50, and 70 mg/kg b.w.

The genotoxic effect of potassium metabisulfite using chromosome aberration, sister chromatid exchange, micronucleus tests in human lymphocytes and chromosome aberration test in bone marrow cells of rats.

Potassium metabisulfite (PMB) is used as an antimicrobial substance in many kinds of foods. In the present study, the effects of PMB on chromosome aberrations (CAs), sister chromatid exchanges (SCEs), and micronucleus (MN) formation in human lymphocytes and as well as its effect on CAs in bone marrow cells of rats were investigated. The human lymphocytes were treated with 25, 50, 100, and 200 microg/ml of PMB for 24 and 48 hr.

Genotoxic effects of potassium bromate on human peripheral lymphocytes in vitro.

The aim of this study was to investigate the genotoxic effects of potassium bromate, which is used as a bleaching agent in flour, on human peripheral blood lymphocytes in vitro by sister chromatid exchange (SCE), chromosomal aberrations (CA) and micronucleus (MN) tests, and also to determine whether it has any genotoxic potential for humans. Cells were treated with 400, 450, 500, 550 microg/ml concentrations of potassium bromate for 24 and 48 h. The SCE frequencies showed an increase after both treatment periods, however, the differences between the treated cells and the control groups were found to be statistically significant only for the 48-h treatment.