scholarly journals Morphometric analysis of the annual shoot of the Acer negundo L. plants, growing in conditions of exposure to technogenic pollution of Donbass

2016 ◽  
Vol 5 (3) ◽  
pp. 13-17
Author(s):  
Elena Nikolaevna Vinogradova

For estimation of quality of the environment in industrial regions, along with the methods of instrumental analysis, the methods of bioindication are rather relevant, foremost phytoindication. The influence of air pollutants during ontogenesis results in violation of normal vital functions of arboreal plants, the integral index of the vital state of which is the intensity of vegetative growth. Parameters, characterizing the plant growth, can be quite informative for the bioindication of level of the technogenic contamination of environment. This article presents the results of analysis of coke production emissions influence and transport on the morphometric indexes of annual vegetative shoots of Acer negundo L. It is shown that the influence of airpollutants leads to inhibition of the development of annual shoot. The reduction in the length of annual shoot (22-26%) and the number of its structural elements is accompanied by a decrease in mass (33-49%) and area (27-45%) of leaves, indicating xerophytization of shoots under the influence of emissions. The greatest changes are revealed in A. negundo trunk from plantations, experiencing, along with the influence of exhaust gas, the extremely adverse conditions of root nutrition. High sensitivity to technogenic emissions of such morphometric parameters of A. negundo as the length of annual shoots, the total weight and area of shoot leaves allows to use them in monitoring researches of vegetation condition and environmental pollution in the industrial regions.

2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Klaudia Proniewska ◽  
Agnieszka Pregowska ◽  
Krzysztof Piotr Malinowski

AbstractBecause an average human spends one third of his life asleep, it is apparent that the quality of sleep has an important impact on the overall quality of life. To properly understand the influence of sleep, it is important to know how to detect its disorders such as snoring, wheezing, or sleep apnea. The aim of this study is to investigate the predictive capability of a dual-modality analysis scheme for methods of sleep-related breathing disorders (SRBDs) using biosignals captured during sleep. Two logistic regressions constructed using backward stepwise regression to minimize the Akaike information criterion were extensively considered. To evaluate classification correctness, receiver operating characteristic (ROC) curves were used. The proposed classification methodology was validated with constructed Random Forests methodology. Breathing sounds and electrocardiograms of 15 study subjects with different degrees of SRBD were captured and analyzed. Our results show that the proposed classification model based on selected parameters for both logistic regressions determine the different types of acoustic events during sleep. The ROC curve indicates that selected parameters can distinguish normal versus abnormal events during sleep with high sensitivity and specificity. The percentage of prediction for defined SRBDs is very high. The initial assumption was that the quality of result is growing with the number of parameters included in the model. The best recognition reached is more than 89% of good predictions. Thus, sleep monitoring of breath leads to the diagnosis of vital function disorders. The proposed methodology helps find a way of snoring rehabilitation, makes decisions concerning future treatment, and has an influence on the sleep quality.


2016 ◽  
pp. 120-127
Author(s):  
Dinh Toan Nguyen

Background: Dementia after stroke, particularly subacute period is often overlooked. Today the quality of human life is increasingly high, finding scales that have high value for detection of dementia in patients with stroke is increasingly interested. MoCA test is high sensitivity with mild dementia and identify more abnormalities of awareness caused by vascular, but MoCA have not been studied much in Vietnam. Objective: Assessing MoCA test in subacute stroke patients and compare MoCA versus MMSE in these patients. Subjects: 90 patients with subacute stroke period, these people are being treated at Department of cardiovascular internal medicine at Hue Central Hospital, from 7/2014 - 7/2015. Methods: cross-sectional description and analysis. Results: The mean age is 65.57 ± 13.38, accounting for 54.4% male and 45.6% female. Age, duration of illness has weak correlation with MoCA. The risk factors: hypertension, stroke ischemic transient, alcoholism, smoking, heart disease, diabetes, dyslipidemia related no statistical significance with MoCA. The proportion of dementia in subacute stroke according MoCA is 82.2%. The concordance between MoCA and MMSE was good (kappa = 0.684). Using DSM-IV criteria as the gold standard we found MoCA more valuable in the dementia diagnosis than MMSE (AUC 0.864 versus 0.774, p <0.05). Conclusion: The rate of dementia in stroke subacute period according MoCA is quite high. MoCA is valuable than MMSE in detecting dementia in patients with stroke subacute period, this scale is short, easy to implement so should put into using widely in clinical practice. Key words: MoCA test, subacute stroke, dementia


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1057.2-1057
Author(s):  
Y. Liu ◽  
Y. Huang ◽  
Q. Huang ◽  
S. Sun ◽  
Z. Ji ◽  
...  

Background:Exosomes in synovial fluid (SF) has a close relationship with the pathogenesis of rheumatiod arthritis. As a complex biological fluid, SF presents challenges for exosomes isolation using standard methods, such as ExoquickTM kit and ultracentrifugation.Objectives:The study aims to compared the quality of exosomes separated by ExoquickTM kit (TM), ExoquickTM kit+ExoquickTC kit (TM-TC), ultracentrifugation (UC) and TM-TC+UC(TM-TC-UC) from SF.Methods:Exosomes was separated by TM, TM-TC, UC and TM-TC-UC respectively. The size and concentrations of exosomes were detected by high sensitivity flow cytometry for nanoparticle analysis. Total protein and RNA were extracted from exosomes. SDS-PAGE was used to detect the protein distribution of exosomes. Western blot was used to examine the level of albumin and exosomes marker (TSG101 and CD81).Results:There was no statistic difference in the diameters of exosomes separated by the four methods. The concentrations of exosomes in TM, TM-TC, TM-TC-UC and UC were (5.65±0.93), (3.02±1.19), (1.67±0.25) and (4.61±0.73) *109Particles/mL. The protein concentrations of exosomes separated by the four methods were consistent with the concentrations of exosomes. SDS-PAGE showed that the protein distribution of exosomes separated by the four methods were different. Low levels of albumin were detected in TM-TC and TM-TC-UC, while high levels of albumin in TM and UC. Total RNA concentrations from exosomes in TM-TC was higher than other groups.Conclusion:TM-TC can be used to obtain higher quality exosomes from SF for the study of exosome-enriched components.References:[1]Helwa I, et al, A Comparative Study of Serum Exosome Isolation Using Differential Ultracentrifugation and Three Commercial Reagents. PloS one, 2017. 12(1): p. e0170628-e0170628.Figure 1.A: SDS-PAGE showed the protein distribution of exosomes; B: the detection of albumin, TSG101 and CD81 by western blot.Disclosure of Interests:None declared


2015 ◽  
Vol 93 (2) ◽  
pp. 758-766 ◽  
Author(s):  
G. Martelli ◽  
E. Nannoni ◽  
M. Grandi ◽  
A. Bonaldo ◽  
G. Zaghini ◽  
...  
Keyword(s):  

2020 ◽  
Vol 1 (1) ◽  
pp. 32-46
Author(s):  
C. Kambai ◽  
R. O. Olatunji ◽  
M. J. Francis

This study investigated the compost quality of sericulture waste on the growth of Anogeissus leiocarpus using two composting methods. The two-method adopted were M1 (pile method) and M2 (bin method). Sericulture waste which includes mulberry leaves and silkworm excreta were air dried for 24hours, measured (1 kg) and set in layers for both methods adopted. Samples of compost from each method were taken before planting to the laboratory for proximate analysis. Descriptive statistics and analysis of variance (ANOVA) were used to analyze the data obtained. Anogeissus leiocarpus seeds were soaked for 10 minutes at 35oC and at 9.5oC for 24 hours to enhance the breaking of its dormancy. Anogeissus leiocarpus seeds was planted using sericulture compost from both adopted methods. Result shows that M1 had the highest mineral composition. M1 recorded the highest (N %) with the value of 0.93%; (P %) with 0.089%; (K %) with 0.58%; (Ca %) with the value of 1.78% and (Mg %) with the value of 0.72% while M2 had a lower mineral composition. The result obtained for the early growth parameters shows that M1 had a higher plant height and stem girth which was significantly different from M2, the mixture of the two compost had the highest leaf count which was also significant while the control recorded the lowest value for all the parameters assessed. This result suggests that pile composting method is the best method for composting sericulture waste and can be used as a good and preferable alternative for inorganic manure in raising seedlings and trees species.  Adopting the use of sericulture waste as compost will help in reducing the waste management problem, enhance economic use of farm waste and also help to ease the low germination rate and germination percentage of Anogeissus leiocarpus. Kambai, C. | Department of Forestry Technology, Federal College of Forestry, Jos, Plateau state, Nigeria


Author(s):  
L. T. Olaokiki ◽  
S. A. Adejumo

Vegetables form major part of human dietary/nutritional needs. It provides the necessary vitamins and minerals as well as antioxidants to boost immunity. Different vegetables however have different benefits and require different growing conditions. This study investigated the effect of two growing conditions (Screen-house and open field) and soil amendments; Mexican sunflower compost (MSC; applied at 0, 5, 10 t/ha) and NPK 15:15:15 (applied at 0, 50 and 100 kg N/ha) on the growth performance, yield, and nutritional quality of five selected vegetables (Amaranthus cruentus, Celosia. argentea, Solanum macrocarpon, Solanum nigrum and Solanum incanum). Each treatment was replicated three times and experiment arranged in completely randomized design, Compost was applied a week before seed sowing vegetables grown in the screen-house generally performed better than the open field in terms of leaf area and chlorophyll content. The response however varied based on the vegetable and the soil amendments. Solanum species, performed better than Amaranthus under screen-house than open field. Chlorophyll in the leaf responded positively to NPK fertilizer under screen-house conditions while growth parameters such as plant height, stem girth, number of leaves under screen-house and field conditions varied depending on the vegetables. The number of leaves and leaf area increased with soil amendments. Moisture, crude protein and ash contents were reduced under open field compared to screen-house. The zinc and iron contents of the vegetable leaves showed that addition of compost was superior to NPK and screen-house better than open field. It can be concluded that vegetables grown in the screen-house performed better in their respective growth parameters than vegetables are grown under the open field.


2021 ◽  
Vol 3 (3) ◽  
pp. 38-44
Author(s):  
O.P. Chernousova ◽  
N.V. Mukina ◽  
A.Yu. Martynova

THE CENTRAL LABORATORY OF COKE PRODUCTION AT PJSC «ARCELORMITTAL KRYVYI RIH» IN PRESENT-DAY CONDITIONS © O.P. Chernousova, N.V. Mukina (Coke Production of PJSC «ArcelorMittal Kryvyi Rih», 50095, Dnipropetrovsk region, Kryvyi Rih, Kryvorizhstal str., 1, Ukraine), A.Yu. Martynova, PhD in Technical Sciences (State Enterprise "Ukrainian State Research Coal Chemical Institute (UHIN)", 61023, Kharkov, Vesnina st., 7, Ukraine) The article discusses the scientific and methodological organization of analytical control at the coke production of PJSC "ArcelorMittal Kryvyi Rih" (CP AMKR), as well as the results of ongoing scientific and methodological measures to ensure confidence in the results of measurements carried out in the central laboratory (CL CP AMKR). Thus, the CL CP AMKR was one of the first in the industry to put into use the test installation "KARBOTEST", which allows without the involvement of third parties to carry out important laboratory research and enables the laboratory staff to quickly develop recommendations for optimizing the composition of coal charges and improving the quality of coke. The unit is designed to test the coking process of coal mixtures and certain grades of coal concentrates under temperature conditions similar to those in coke oven batteries. CL CP AMKR introduces express methods for the analysis of chemical coking products and was one of the first to introduce a refractometric method for determining the mass fraction of distillate up to 180 ° C in crude benzene. The use of this method can significantly reduce the measurement time, avoiding the cumbersome distillation procedure, and reduce the sample volume for analysis from 100 cm3 to a few drops. In order to ensure the uniformity, quality of measurements and tests, the CL on an ongoing basis takes part in interlaboratory comparative tests of almost all types of raw materials and products entering and produced by it. These are the products that are stable over time in terms of their quality indicators, for example, coal coke, as well as products whose individual indicators can change over time (crude benzene, coal tar, etc.). Keywords: measurement, quality control, coal concentrates, coke, chemical products, qualification confirmation, experimental coking, uncertainty, interlaboratory experiment, accreditation. Corresponding author A.P. Chernousova, е-mail: [email protected]


Author(s):  
V. Liashenko ◽  
◽  
I. Petrova ◽  

The article defines the sustainable development of the old industrial regions of Ukraine (Slobozhanskiy, Prydniprovskiy, Donetsk Economic Area) using the methodology for determining the criteria and quantifying the processes and stages of their industrial, post-industrial and neo-industrial modernization. In the course of the study, a methodological toolkit was used to assess the level and conditions of industrial, post-industrial and neo-industrial modernization of the economy based on taking into account the quantitative parameters of the ecological, economic and social components of sustainable development. The results of assessing the stages of modernization of the regions of Ukraine in 2005-2019. confirmed the industrial development of Donetsk (Donetsk and Lugansk regions) and Prydniprovskiy (Dnipropetrovsk, Zaporizhzhia and Kirovograd regions) Economic Area. According to the results of the assessment of post-industrial modernization, the Slobozhanskiy Economic Area (Poltava, Sumy and Kharkiv regions) received the highest index. This region is the undisputed leader in terms of indicators reflecting innovation in knowledge and knowledge transfer (the difference is tens of points in comparison with the corresponding indices of other regions). Assessment of the stage of neo-industrial modernization showed the existence of a negative trend that has developed in all economic regions – a steady decrease in funding for innovations in knowledge. As a result, the overall index of knowledge indicator groups showed no signs of growth, and even decreased in some areas. The Slobozhanskiy Economic Area became an optimistic exception. The development and implementation of a methodology for assessing modernization processes will increase the efficiency of management decision-making by state authorities, improve the quality of strategies and targeted comprehensive programs for socio-economic development. To ensure post-industrial and neo-industrial modernization of the economy based on sustainable development in the conditions of insufficient efficiency and effectiveness of the traditional instruments of state policy, it is necessary to form institutions of regional development. Analyzed the current state of the presence of regional development institutions in the areas of activity. It was determined that the institutional structure is heterogeneous, the regions are different in the quality of labor and natural resources, which actually determines the specialization of the regional economy, therefore, for them it is necessary to use differentiated support measures from the development institutions.


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