scholarly journals Wpływ humianu sodowego z węgla brunatnego na rozwój roślin [Effect of sodium humate from lignite on plants grown under various culture conditions]

2015 ◽  
Vol 24 (2) ◽  
pp. 143-170
Author(s):  
Z. Gumińska ◽  
M. Gracz-Nalepa ◽  
B. Łukasiewicz ◽  
M. Koniarek ◽  
M. Osmelak ◽  
...  

The effect of humate on the uptake of Fe-ions has already been proved. In the present paper other advantages of humate are indicated. If plants are grown in optimum conditions humate has no effect. In more concentrated solutions humate acts as a preventive factor and provides for more economical use of the solution (yield increase 40%). When high doses of P and Cu are used, humate weakens their harmful effect on plants; with pH too low or too high, it acts protectively. Humate was tested also in the transplantation of vegetatively propagated young orchid plants from sterile conditions into a natural medium; in that case it also showed a protective effect.

2021 ◽  
Vol 1 (1) ◽  
pp. 479-485
Author(s):  
Wibiana Wulan Nandari ◽  
Yuli Ristianingsih ◽  
Indriana Lestari

Iron (Fe) is one of the compounds contained in heavy metals which is very dangerous for the survival of living things when in the environment around the residence that has exceeded the threshold. Fe ions can cause turbidity, corrosion, and other impacts. Iron (Fe) is a transition metal and has the atomic number 26. The oxidation numbers of Fe are +3 and +2. Fe is an essential metal for the body which in high doses is toxic. Given the various dangers caused by exposure to Fe metal, it is necessary to treat Fe metal contained in groundwater. One of the most widely used heavy metal processing methods is the adsorption process. In previous studies, many adsorption processes used activated carbon from various materials as adsorbents. In this study, pectin was extracted from banana peels with hydrochloric acid as a solvent at various temperatures and concentrations. The optimum conditions were at 80oC and a concentration of 0.35 N. The pectin obtained was 2.3171 grams.


2020 ◽  
Vol 99 (9) ◽  
pp. 1001-1006
Author(s):  
Elvira F. Repina ◽  
Denis O. Karimov ◽  
Samat S. Baygildin ◽  
Gulnara V. Timasheva ◽  
Nadezhda Yu. Khusnutdinova ◽  
...  

Introduction. Among noninfectious diseases, one of the leading places belongs to pathologies caused by the action of industrial toxicants. In this regard, the search for drugs for the prevention and treatment of various intoxications is one of the priority tasks of public health. Treatment of intoxication with drugs with antioxidant and antihypoxic activity is more effective. The aim of this study was to investigate morphological changes in parenchymal organs (liver, kidneys, and pancreas) under acute exposure to high doses of carbon tetrachloride and to evaluate the effectiveness of their correction with a new composition of oxymethyluracil with ascorbic acid. Material and methods. The composition of 5-hydroxy-6-methyluracil with ascorbic acid was first synthesized at the Ufa Institute of Chemistry, Ufa Federal Research Center, RAS. The preventive effect of the new drug was studied in comparison with “Heptor” on the carbon tetrachloride-induced liver injury model. Morphological studies of the liver, pancreas, and kidneys of laboratory animals were carried out. Results. Studies have shown the prophylactic administration of new composition of 5-hydroxy-6-methyluracil with ascorbic acid to have a protective effect on the structure of parenchymal organs in acute carbon tetrachloride intoxication, comparable to the drug “Heptor” (possibly superior). However, reparative properties were observed only in the drug “Heptor”. Conclusion. Comparative estimation of morphological changes in parenchymal organs under acute exposure to high doses of carbon tetrachloride indicates the protective effect of prophylactic administration of the composition of 5-hydroxy-6-methyluracil with ascorbic acid, comparable to the drug “Heptor” (possibly superior).


2010 ◽  
Vol 44 (1) ◽  
pp. 43-45 ◽  
Author(s):  
V. N. Shkarupa ◽  
I. R. Barilyak ◽  
L. V. Neumerzitskaya ◽  
I. D. Gumenyuk

2020 ◽  
Vol 170 (2) ◽  
pp. 211-214
Author(s):  
L. V. Okhremchuk ◽  
I. Zh. Seminskii ◽  
M. A. Darenskaya ◽  
L. A. Grebenkina ◽  
L. I. Kolesnikova ◽  
...  

2012 ◽  
Vol 56 (5) ◽  
pp. 2290-2294 ◽  
Author(s):  
Davy Vandenbosch ◽  
Anna Bink ◽  
Gilmer Govaert ◽  
Bruno P. A. Cammue ◽  
Hans J. Nelis ◽  
...  

ABSTRACTPrevious research has shown that 1% to 10% of sessileCandida albicanscells survive treatment with high doses of miconazole (a fungicidal imidazole). In the present study, we investigated the involvement of sphingolipid biosynthetic intermediates in this survival. We observed that theLCB4gene, coding for the enzyme that catalyzes the phosphorylation of dihydrosphingosine and phytosphingosine, is important in governing the miconazole resistance of sessileSaccharomyces cerevisiaeandC. albicanscells. The addition of 10 nM phytosphingosine-1-phosphate (PHS-1-P) drastically reduced the intracellular miconazole concentration and significantly increased the miconazole resistance of a hypersusceptibleC. albicansheterozygousLCB4/lcb4mutant, indicating a protective effect of PHS-1-P against miconazole-induced cell death in sessile cells. At this concentration of PHS-1-P, we did not observe any effect on the fluidity of the cytoplasmic membrane. The protective effect of PHS-1-P was not observed when the efflux pumps were inhibited or when tested in a mutant without functional efflux systems. Also, the addition of PHS-1-P during miconazole treatment increased the expression levels of genes coding for efflux pumps, leading to the hypothesis that PHS-1-P acts as a signaling molecule and enhances the efflux of miconazole in sessileC. albicanscells.


2018 ◽  
Vol 13 (1) ◽  
pp. 165-171 ◽  
Author(s):  
Deepti Pargai ◽  
Shahnaz Jahan

UV radiation causes various skin problems starting from reddening of skin to the change in the shape of DNA which further leads to the skin cancer. Considering harmful effect of UV radiation present study was designed to develop an environmental friendly UV protective finish for cotton fabric using Vitis vinifera leaves. Process parameters of the study were optimized using response surface methodology for getting maximum UV protection while maintaining other physical properties of the fabric. It was found that 9.038 % concentration of extract with 60 minutes of exhaustion time at 40.909oC exhaustion temperature were selected as optimum conditions for application of Vitis vinifera extract on cotton fabric. It can be concluded that application of Vitis vinifera extract on cotton fabric incorporates UV protection properties on cotton fabric which can be helpful to prevent various UV induced skin problems.


Author(s):  
Sean Randall ◽  
James Boyd ◽  
Emma Fuller ◽  
Caroline Brooks ◽  
Carole Morris ◽  
...  

IntroductionEvidence on the effect of vasectomy and vasectomy reversal on risk of prostate cancer is conflicting, with the issue of detection bias a key criticism. In this study we examined the effect of vasectomy reversal on prostate cancer risk in a cohort of vasectomised men. Objectives and ApproachA proof of concept study involving the International Population Data Linkage Network which pooled aggregated result data from participating centres in Australia, Canada and the United Kingdom. De-identified linked data extractions took place at each centre. Each participating centre locally conducted Cox proportional hazards regression analysis compared the risk of prostate cancer in those with/without vasectomy reversal in a cohort of vasectomised men. These results were then combined in a meta-analysis. Evidence of a protective effect of vasectomy reversal would suggest the harmful effect of vasectomy on prostate cancer risk, while nullifying detection bias. ResultsData were received from Australia (the states of Western Australia and New South Wales), Canada (the province of Ontario), Wales and Scotland. In total, there were 9,754 men with vasectomy reversals, and 684,660 men with a vasectomy. The combined analysis showed no protective effect of vasectomy reversal on incidence of prostate cancer when compared to those who had vasectomy alone (HR, 95%CI: 0.92, 0.70-1.21). As such, the results align with previous studies which found little or no evidence of a link between vasectomy and prostate cancer. Conclusion/ImplicationsThe study, originally conceived at the first IPDLN meeting in London, found no obvious protective effect of vasectomy reversal on prostate cancer in vasectomised men. The project demonstrated the utility and feasibility of collaborative studies fostered through the IPDLN, despite methodological challenges faced when aggregating international data.


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