scholarly journals Comparative analysis of the theory of constrained sedimentation and compression of sediments

2021 ◽  
Vol 937 (4) ◽  
pp. 042058
Author(s):  
Denis Butko ◽  
Oksana Shishova
Keyword(s):  
Comparative Analysis ◽  
Potable Water ◽  
Volume Concentration ◽  
Short Term

Abstract The object of research contains a comparison between the theories made by Kynch and professor E.F. Kurgaev. These theories are based on the fundamental hypothesis about the change in volume concentration during compression (settling). The features of both of them have been clarified to be applied to the study of sediments compression from stations of potable water preparation. The advantage of the theory of professor E.F. Kurgaev considers the term of sediments compression both in short term and long term perspective, meaning up to several years, which is especially important for the calculation of sludge collectors.

scholarly journals COMPARATIVE ANALYSIS OF LOW TEMPERATURE RESISTANCE FOR NANOCARBON AND OTHER BITUMENS

2020 ◽  
Vol 5 (443) ◽  
pp. 89-96
Author(s):  
Zhurinov M.Zh., ◽  
◽  
Teltayev B.B., ◽  
Kalybay A.A., ◽  
Rossi C.O., ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Low Temperature ◽  
Polyphosphoric Acid ◽  
Crumb Rubber ◽  
Petrochemical Plant ◽  
Short Term ◽  
Temperature Resistance ◽  
Coal Rock ◽  
Low Temperature Resistance

A comparative analysis of the low temperature resistance for a nanocarbon bitumen and other 30 neat and modified bitumens has been performed in the work. The stiffness at the temperatures of -24°С, -30°С and -36°С under technical system Superpave has been accepted as an indicator of low temperature resistance of the bitumens. The stiffness of the bitumens has been determined on a bending beam rheometer (standard ASTM D 6648-08). Before testing the bitumens have been subjected to the double artificial aging: short-term aging – under standard AASHTO Т 240-13 and long-term aging – under standard ASTM D 6521-08. The nanocarbon bitumen has been prepared in the laboratory of the Kazakhstan Highway Research Institute (KazdorNII) with the use of a road bitumen of the grade BND 70/100 produced by the Pavlodar petrochemical plant (PNHZ) and a nanocarbon powder (2% by weight) manufactured from a coal rock of the deposit “Saryadyr” “Corporation “ON-Olzha” LLP, Akmola region, Kazakhstan). The nanocarbon powder (150-200 nm) has been manufactured by three-stage size reduction of the coal rock: I – a mechanical dispergator (up to 2-3 mm), II – an aerodynamic mill (up to 20 mcm), III – a reactor with a rotating electromagnetic field. The neat bitumens of the grades BND 50/70, BND 70/100, BND 100/130 have been produced by the plants of Kazakhstan and Russia; they satisfy the requirements of the standard ST RK 1373-2013. The modified bitumens have been prepared in the laboratory of KazdorNII with the use of the neat bitumens, 7 types of the polymers, crumb rubber and polyphosphoric acid and they satisfy the requirements of the standard ST RK 2534-2014. It has been determined that the nanocarbon bitumen is one of the most resistant at the low temperatures: -24°С, -30°С and -36°С.

Financial health of Syariah and non-Syariah banks: a comparative analysis

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Elok Heniwati ◽  
Nella Yantiana ◽  
Gita Desyana
Keyword(s):  
Comparative Analysis ◽  
Financial Stability ◽  
Influential Factors ◽  
Financial Health ◽  
Short Term ◽  
Liquid Asset ◽  
Content Type ◽  
Explanatory Variables ◽  
Insolvency Risk

Purpose This paper aims to investigate whether Syariah banks are more financially stable than non-Syariah banks and check the differential impact of explanatory variables in financial health and efficiency in the context of Indonesia. Design/methodology/approach By using unbalanced panel data from Bankfocus over the period 2011–2018, regression analysis is performed with two response variables representing financial health, ZSCORE for return on average assets, liquid asset to deposit and short-term funding ratio. A number of control variables are used as tools to confirm the hypotheses. To check the robustness of the findings, a model with different specifications has been used. Findings The results indicate that while Syariah banks present higher insolvency risk (less health) for long-term activity, the opposite is true for short-term activity. Other findings show that Syariah and non-Syariah banks contribute differently to the national system of financial stability owing to varying influential factors on the bank’s health. Originality/value This paper presents a comparative analysis between the financial stability of Syariah banks and that of non-Syariah banks in Indonesia by building an empirical framework that allows the author to examine the differential effects of each underlying feature on financial stability in Syariah and non-Syariah banks.

scholarly journals Comparative Analysis of Executive Compensation in the Republic of Serbia and EU Countries

2019 ◽  
Vol 57 (2) ◽  
pp. 181-200
Author(s):  
Ivana Marinović Matović
Keyword(s):  
Comparative Analysis ◽  
Executive Compensation ◽  
High Capacity ◽  
Business Organization ◽  
Business Organizations ◽  
Short Term ◽  
Eu Countries ◽  
Strong Motivation ◽  
The Republic

AbstractExecutive compensations have a strong motivation role in contemporary business organizations. Adequate models of compensation enable attracting and retaining the high-capacity managers. This way, business organization conquers and maintains the competitive position in the context of globalization. It is necessary to align the executive compensation with the business organization’s strategy, which requires careful process of planning, done by the highest levels of management and ownership. The main objective of the paper is to explore and compare the structure and the level of executive compensation in the Republic of Serbia and EU countries. The paper focuses on executive compensation components, primarily long-term and short-term incentives, as well as sallary and benefits. A comparative analysis of executive compensation models was performed to explain the differences in the observed countries.The study found large and disproportionate differences in the executive compensation levels, conditioned mostly by the economic development of the observed economies.

scholarly journals The Place of Criminal Repression in the Modern Criminal Law Futurology

2020 ◽  
Vol 10 ◽  
pp. 35-40
Author(s):  
Pavel V. Zhesterov ◽  
Keyword(s):  
Comparative Analysis ◽  
Criminal Law ◽  
Criminal Policy ◽  
Scientific Research ◽  
Short Term ◽  
Forecasting Methods ◽  
Modern Technologies

Purpose. The author reveals the issues of a new direction of criminological foresight - criminal law futurology. The author clarifies the role of predictions in the fight against crime and the prevention of crimes by criminal means. Methodology: the study uses a set of dialectical, systemic, logical methods. The author pays special attention to the genesis of the essence and content of criminological forecasting. Conducts a comparative analysis of the latest forecasting methods, based on the use of modern technologies and based on mathematical tools. Conclusions. The author concludes that further short-term and long-term criminological studies of a prognostic nature are necessary, the results of which can be more widely used in the formation and implementation of criminal policy. The author indicates promising directions for further scientific research.

Comparative analysis of second and subsequent chemotherapy lines on short- and long-term survival of elderly Medicare metastatic colon cancer patients.

2013 ◽  
Vol 31 (4_suppl) ◽  
pp. 455-455
Author(s):  
Nader Hanna ◽  
Ebere Onukwugha ◽  
Kaloyan A Bikov ◽  
Zhiyuan Zheng ◽  
Brian S. Seal ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Comparative Analysis ◽  
Metastatic Colon Cancer ◽  
Short Term ◽  
Term Survival ◽  
Long Term Survival ◽  
Line Therapy ◽  
Short And Long Term ◽  
Diagnosis Date

455 Background: Metastatic colon cancer (mCC) patients often receive multiple lines of chemotherapy as treatment (TX) to improve survival or quality of life, yet the “real world” benefits and risks of multiple TX lines have not been fully examined. Methods: Elderly (65+) SEER-Medicare patients diagnosed with mCC in 2003-2007 were followed until death or 12/31/09 to examine the survival benefits for different chemotherapy lines. The median time between diagnosis date and the starting date of 2nd line was 352 days. Therefore, we restricted comparative analysis of 2nd and subsequent chemotherapy TX lines to patients who survived at least 1 year after mCC diagnosis date. We used Cox regression framework and adjusted for patients’ TX and censoring histories by using inverse probability weighting method. Separate analyses were conducted for short (2 years) and long-term (5 years) survival to examine different benefits of 2nd and subsequent chemotherapy lines. Results: Of 2,600 elderly Medicare mCC patients diagnosed between 2003-2007 and who survived at least 1 year, 2,530 were dead by the end of 2009. Significant factors associated with long-term survival were 1st line therapy(HR = 0.76; p < 0.01), 2nd line therapy (HR = 0.83; p < 0.01) , and subsequent chemotherapy line therapy(HR = 0.85; p = 0.04), as compared to no therapy, age groups 95+ (HR = 3.07; p < 0.01), 85-94 (HR = 1.33; p < 0.01), and 75-84 (HR = 1.10; p = 0.04) as compared to 65+-74, Asian vs. White (HR = 0.71; p < 0.01), and zip code level household median income (HR = 0.98; p = 0.01). For short-term survival, the benefits of 2nd and subsequent chemotherapy lines were maintained until month 29. Patients with poor performance status were less likely to proceed to 2nd line therapy. No statistically significant variables predicting receipt of subsequent chemotherapy lines were identified. Conclusions: Among elderly Medicare mCC patients who survived at least 1 year after diagnosis, 1st line therapy improved both short and long-term survival. 2nd and subsequent chemotherapy line therapy reduced short-term mortality (2 years); however, they didn’t add any additional long term survival benefit (5 years) as compared to 1st line therapy.

scholarly journals Comparative analysis of diet-associated responses in two rice planthopper species

2020 ◽  
Author(s):  
Hai-Jian Huang ◽  
Jia-Rong Cui ◽  
Xiao-Yue Hong
Keyword(s):  
Gene Expression ◽  
Comparative Analysis ◽  
High Throughput Sequencing ◽  
Insect Pests ◽  
Brown Planthopper ◽  
Host Adaptation ◽  
Short Term ◽  
Expression Change ◽  
Rice Plants

Abstract Background: Host adaptation is the major determinant of insect diversification. However, knowledge of different host ranges in very close-related species remains scarce. The brown planthopper (Nilaparvata lugens, BPH) and small brown planthopper (Laodelphax striatellus, SBPH) are the most destructive insect pests belonging to Delphacidae. These two species differ in the host range (SBPH can well colonize on rice and wheat plants, while BPH survive on rice plants only), but the underlying mechanism still remains unknown. High-throughput sequencing technology provides a powerful approach for analyzing the association between gene expression changes and physiological responses of insects. Therefore, the gut transcriptomes were performed to elucidate the genes associated with host adaptation in planthoppers. Comparative analysis of planthoppers’ responses to different diets would improve our knowledge of host adaptation regarding herbivores insects.Results: In the present study, we analyzed the gene expression change of SBPH that transferred from rice plants to wheat plants in a short term (rSBPH vs tSBPH) and colonized on wheat plants for a long term (rSBPH vs wSBPH). The results showed that the majority of differentially expressed genes in SBPH showed similar expression change between short-term transfer and long-term colonization. Based on the comparative analysis of BPH and SBPH after transferring, genes associated with sugar transporters and heat shock proteins varied similarly. However, most of genes were differentially regulated between two species. The detoxification-related genes were upregulated in SBPH after transferring while downregulated in BPH under the same condition. Ribosomal-related genes were downregulated in SBPH after transferring while upregulated in BPH under the same condition.Conclusion: The results of this study provided evidence that host plants played dominant roles in shaping the gene expression, and unfitness of BPH on wheat plants might be determined within 24 hours after transferring. This study deepens our understanding of different host ranges regarding two planthopper species, which may provide a potential strategy for pest management.

scholarly journals Comparative analysis of different host adaptation in two rice planthopper species

2020 ◽  
Author(s):  
Hai-Jian Huang ◽  
Jia-Rong Cui ◽  
Xiao-Yue Hong
Keyword(s):  
Gene Expression ◽  
Comparative Analysis ◽  
Insect Pests ◽  
Brown Planthopper ◽  
Underlying Mechanism ◽  
Host Adaptation ◽  
Short Term ◽  
Expression Change ◽  
Rice Plants

Abstract Background: Host adaptation is the major determinant of insect diversification. However, knowledge of different host ranges in very close-related species is scarce. The brown planthopper (Nilaparvata lugens, BPH) and small brown planthopper (Laodelphax striatellus, SBPH) are the most destructive insect pests belonging to Delphacidae. These two species differ in the host range, but the underlying mechanism remains unknown. Comparative analysis of planthoppers’ responses to different diets would improve our knowledge of host adaptation regarding herbivores insects.Results: SBPH could well colonize on rice and wheat plants, while BPH survived on rice plants only. We analyzed the gene expression change of SBPH that transferred from rice plants to wheat plants in a short term (rSBPH vs tSBPH) and colonized on wheat plants for a long term (rSBPH vs wSBPH). We found that the majority of differentially expressed genes in SBPH showed similar expression change between short-term transfer and long-term colonization. Based on the comparative analysis of BPH and SBPH after transferring, genes associated with sugar transporters and heat shock proteins varied similarly. However, most of genes were reciprocally regulated between two species. The detoxification-related genes were upregulated in SBPH after transferring, but downregulated in BPH under the same condition; ribosomal-related genes were down regulated in SBPH after transferring, but upregulated in BPH under the same condition.Conclusion: The results of this study provided evidence that host plants played dominant roles in shaping the gene expression, with alike responding of most genes between short-term transfer and long-term colonization in SBPH. In contrast, the majority of genes in BPH were reciprocally regulated in comparison to those of SBPH, and unfitness of BPH on wheat plants might be determined within 24 hours after transferring. This study deepens our understanding of different host ranges regarding two planthopper species, and may provide a potential strategy for pest management.

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