Priprava toplinskoizolacijske žbuke s FGD-gipsom

Thermal insulation gypsum plaster was prepared from flue gas desulphurization (FGD) gypsum. K12 is more recommendable as foaming agent, when the mass fraction of K12 is around 0.1 %, the setting time and compressive strength meet the requirements of gypsum-based construction materials. In the meanwhile, the thermal conductivity is 0.18 W m–1 K–1, which can be used as a thermal insulation material. The hemihydrate mixtures obtained, allow the design of a new wall structure, which is more efficient as a thermal insulation system. The wall heat transfer coefficient test was carried out to compare thermal performance of two different thermal insulation systems. Compared with the thermal performance of a conventional system, the heat transfer coefficient of the new system was reduced by 5.6 %. Finally, energy-saving analysis of a building was carried out to compare the energy-saving effect of the conventional and new systems of building. The energy-savings of the building with the new system increased by almost 2 %, thus resulting in low energy consumption of the building.Toplinskoizolacijska gipsana žbuka izrađena je od gipsa nastalog odsumporavanjem dimnog plina (FGD). Uz maseni udjel sredstva za pjenjenje (K12) 0,1 % toplinska provodnost iznosi 0,18 W m–1 K–1 pa se materijal može upotrijebiti za toplinsku izolaciju. Žbuka i sredstvo za pjenjenje uključeni su u novi tip zidne toplinske izolacije. Koeficijent prijenosa topline novog izolacijskog sustava određen je eksperimentalno i iznosi 0,608 W m–2 K–1. Na temelju analize zaključeno je da se s novim sustavom ušteda energije u zgradi može popeti do 66,99 %. Novi materijal može imati velik utjecaj na energijsku učinkovitost zgrade

Lycium barbarum polysaccharide attenuates cisplatininduced apoptosis in ovary granulosa cells via alleviation of endoplasmic reticulum stress

Purpose: To investigate the effect of Lycium barbarum polysaccharide (LBP) on apoptosis of ovary granulose cells (GCs), as well as its underlying mechanism.Methods: GCs were isolated from Sprague Dawley (SD) rats and divided into three groups: control group, model group (DDP) and LBP group. Cell morphology was observed by H & E staining under optical microscope. Expression of follicle stimulating hormone receptor (FSHR) was assessed by immunohistochemistry (IHC), while cell viability was assayed using 3-(4,5-dimethyl-2-thiazolyl)-2,5- diphenyl-2-H-tetrazolium bromide (MTT). Apoptosis was determined by flow cytometry. Expressions of glucose-regulated protein 78(GRP78), C/EBP homologous protein (CHOP), caspase-3, Bax protein and B cell lymphoma-2(Bcl-2) were assayed by Western blot and qRT-PCR.Results: Apoptosis index (37.6 ± 2.44 %) was significantly higher (p > 0.05) in DDP group than in the control group (14.3 ± 1.09 %), while mRNA levels and expressions of caspase-3, Bcl-2 and Bax increased significantly (p > 0.05). Expressions of GRP78 and CHOP in the DDP group were also higher than in the control group (p > 0.05). However, these effects were effectively blocked by co-incubation with LBP. Moreover, the DDP-induced increase in apoptosis index was dose-dependently and significantly lowered by LBP (p > 0.05).Conclusion: LBP exerts protective effect on cisplatin-induced apoptosis in ovary granulosa cells by alleviating endoplasmic reticulum stress and regulating levels of apoptosis-related proteins. Thus, LBP has the potential for alleviating adverse effects induced by cisplatin in the treatment of ovary granulosa lesions.Keywords: Cis-platin, Ovary granulosa lesions, Lycium barbarum polysaccharide, Endoplasmic reticulum stress, Apoptosi

Erratum for “Lycium barbarum polysaccharide attenuates cisplatin-induced apoptosis in ovary granulosa cells via alleviation of endoplasmic reticulum stress”

Jin et al Trop J Pharm Res 2017, 16(4): 827-835 http://dx.doi.org/10.4314/tjpr.v16i4.12The information under Acknowledgement section should be “None”. Abstract line11: “Bcl-2 and Bax“ should be changed to “Bcl-2/Bax” Abstract: “p>0.05” should be changed to “p<0.05” wherever it occurred.Citation: Huang LQ, Zhang ZY, Zheng B, He Y. Lycium barbarum polysaccharide attenuates cisplatininduced apoptosis in ovary granulosa cells via alleviation of endoplasmic reticulum stress. Trop J Pharm Res 2017; 16(4):827-835 Erratum: 2017; 16(9):2053 http://dx.doi.org/10.4314/tjpr.v16i9.

Correlated two-photon scattering in a one-dimensional waveguide coupled to two- or three-level giant atoms

We study the two-photon scattering processes in a one-dimensional waveguide coupled to a two- or three-level giant atom, respectively. The accumulated phase shift between the two coupling points can be utilized to alter the scattering processes. We obtain the exact interacting two-photon scattering wavefunction of these two systems following the Lippmann-Schwinger formalism, from which the analytical expressions of incoherent power spectra and second-order correlations are also derived. The incoherent spectrum, defined by the correlation of the bound state, serves as a useful indication of photon-photon correlation. The second-order correlation function gives a direct measure of photon-photon correlation. For photons scattered by the two-level giant atom, the accumulated phase shift can be used to improve photon-photon correlation,and adjust the evolution of the second-order correlation. In the system of the three-level giant atom, the photon-photon correlation can be substantially increased. Moreover, the photon-photon interactions and correlation distance of scattered photons can be further enhanced by tuning the accumulated phase shift