scholarly journals Storage performance of Mg2+ substituted NaMnPO4 with an olivine structure

RSC Advances ◽  
2020 ◽  
Vol 10 (49) ◽  
pp. 29051-29060
Author(s):  
Tanya Boyadzhieva ◽  
Violeta Koleva ◽  
Rosica Kukeva ◽  
Diana Nihtianova ◽  
Sonya Harizanova ◽  
...  
Keyword(s):  
Strong Impact ◽  
Magnesium Ions ◽  
Storage Performance ◽  
Olivine Structure

Magnesium ions have a strong impact on the storage performance of olivine-type NaMnPO4.

Observations of the Thermal Decomposition of Brucite

1968 ◽  
Vol 26 ◽  
pp. 446-447
Author(s):  
P. L. Burnett ◽  
W. R. Mitchell ◽  
C. L. Houck
Keyword(s):  
Thermal Decomposition ◽  
Magnesium Oxide ◽  
Basal Plane ◽  
Magnesium Ions ◽  
A Value ◽  
Reaction Proceeds

Natural Brucite (Mg(OH)2) decomposes on heating to form magnesium oxide (MgO) having its cubic ﹛110﹜ and ﹛111﹜ planes respectively parallel to the prism and basal planes of the hexagonal brucite lattice. Although the crystal-lographic relation between the parent brucite crystal and the resulting mag-nesium oxide crystallites is well known, the exact mechanism by which the reaction proceeds is still a matter of controversy. Goodman described the decomposition as an initial shrinkage in the brucite basal plane allowing magnesium ions to shift their original sites to the required magnesium oxide positions followed by a collapse of the planes along the original <0001> direction of the brucite crystal. He noted that the (110) diffraction spots of brucite immediately shifted to the positions required for the (220) reflections of magnesium oxide. Gordon observed separate diffraction spots for the (110) brucite and (220) magnesium oxide planes. The positions of the (110) and (100) brucite never changed but only diminished in intensity while the (220) planes of magnesium shifted from a value larger than the listed ASTM d spacing to the predicted value as the decomposition progressed.

The Effect of Agents which Modify Platelet Behaviour and of Magnesium Ions on Thrombus Formation In Vivo

1979 ◽  
Vol 42 (02) ◽  
pp. 603-610 ◽  
Author(s):  
J H Adams ◽  
J R A Mitchell
Keyword(s):  
Thrombus Formation ◽  
Cerebral Arteries ◽  
Magnesium Ions ◽  
Body Formation ◽  
Inflammatory Agent ◽  
Platelet Thrombus ◽  
Magnesium Salts ◽  
Higher Doses ◽  
Do So

SummaryThe ability of potential anti-thrombotic agents to modify platelet-thrombus formation in injured cerebral arteries in the rabbit was tested. Low doses of heparin were without effect, while higher doses produced variable suppression of white body formation but at the expense of bleeding. Aspirin did not inhibit white body formation but another non-steroid anti-inflammatory agent, flurbiprofen was able to do so, as was the anti-gout agent, sulphinpyrazone. Magnesium salts both topically and parenterally, suppressed thrombus formation and increased the concentration of ADP which was required to initiate thrombus production at minor injury sites.

Trends in Periprosthetic Knee Infection and Associated Costs: A Population-Based Study Using National Data

2020 ◽  
Author(s):  
Robert Brochin ◽  
Jashvant Poeran ◽  
Khushdeep S. Vig ◽  
Aakash Keswani ◽  
Nicole Zubizarreta ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Length Of Stay ◽  
Knee Arthroplasty ◽  
Trend Test ◽  
Strong Impact ◽  
Hospitalization Costs ◽  
Teaching Status ◽  
Increasing Trend ◽  
Total Knee ◽  
Increasing Trends

AbstractGiven increasing demand for primary knee arthroplasties, revision surgery is also expected to increase, with periprosthetic joint infection (PJI) a main driver of costs. Recent data on national trends is lacking. We aimed to assess trends in PJI in total knee arthroplasty revisions and hospitalization costs. From the National Inpatient Sample (2003–2016), we extracted data on total knee arthroplasty revisions (n = 782,449). We assessed trends in PJI prevalence and (inflation-adjusted) hospitalization costs (total as well as per-day costs) for all revisions and stratified by hospital teaching status (rural/urban by teaching status), hospital bed size (≤299, 300–499, and ≥500 beds), and hospital region (Northeast, Midwest, South, and West). The Cochran–Armitage trend test (PJI prevalence) and linear regression determined significance of trends. PJI prevalence overall was 25.5% (n = 199,818) with a minor increasing trend: 25.3% (n = 7,828) in 2003 to 28.9% (n = 19,275) in 2016; p < 0.0001. Median total hospitalization costs for PJI decreased slightly ($23,247 in 2003–$20,273 in 2016; p < 0.0001) while median per-day costs slightly increased ($3,452 in 2003–$3,727 in 2016; p < 0.0001), likely as a function of decreasing length of stay. With small differences between hospitals, the lowest and highest PJI prevalences were seen in small (≤299 beds; 22.9%) and urban teaching hospitals (27.3%), respectively. In stratification analyses, an increasing trend in PJI prevalence was particularly seen in larger (≥500 beds) hospitals (24.4% in 2003–30.7% in 2016; p < 0.0001), while a decreasing trend was seen in small-sized hospitals. Overall, PJI in knee arthroplasty revisions appears to be slightly increasing. Moreover, increasing trends in large hospitals and decreasing trends in small-sized hospitals suggest a shift in patients from small to large volume hospitals. Decreasing trends in total costs, alongside increasing trends in per-day costs, suggest a strong impact of length of stay trends and a more efficient approach to PJI over the years (in terms of shorter length of stay).

Aerodynamic Shape Influence and Optimum Thickness Distribution Analysis of Perceptive Wind Turbine Blade

2018 ◽  
Vol 7 (3) ◽  
pp. 1
Author(s):  
J. V. Muruga Lal Jeyan ◽  
Akhila Rupesh ◽  
Jency Lal
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Thickness Distribution ◽  
Turbine Blades ◽  
Reduced Form ◽  
Load Factor ◽  
Strong Impact ◽  
Theory Approach ◽  
Distribution Analysis ◽  
Optimum Thickness

The aerodynamic module combines the three-dimensional nonlinear lifting surface theory approach, which provides the effective propagated incident velocity and angle of attack at the blade section separately, and a two-dimensional panel method for steady axisymmetric and non-symmetric flow has to be involved to obtain the 3D pressure and velocity distribution on the wind mill model blade. Wind mill and turbines have become an economically competitive form of efficiency and renewable work generation. In the abroad analytical studies, the wind turbine blades to be the target of technological improvements by the use of highly possible systematic , aerodynamic and design, material analysis, fabrication and testing. Wind energy is a peculiar form of reduced form of density source of power. To make wind power feasible, it is important to optimize the efficiency of converting wind energy into productivity source. Among the different aspects involved, rotor aerodynamics is a key determinant for achieving this goal. There is a tradeoff between thin airfoil and structural efficiency. Both of which have a strong impact on the cost of work generated. Hence the design and analysis process for optimum design requires determining the load factor, pressure and velocity impact and optimum thickness distribution by finding the effect of blade shape by varying thickness on the basis of both the aerodynamic output and the structural weight.

MANAGING INFORMATION TECHNOLOGY APPLICATION IN TEACHING AT HIGH SCHOOLS IN VINH YEN CITY, VINH PHUC PROVINCE MEETS INDUSTRIAL REVOLUTION 4.0

2018 ◽  
Author(s):  
Vu Kha Thap
Keyword(s):  
Information Technology ◽  
Social Life ◽  
Industrial Revolution ◽  
Strong Impact ◽  
Surface Strength ◽  
Technology Application ◽  
Management Measures ◽  
The World ◽  
The Status ◽  
Information Technology Application

Entering the XXI century and especially in the period of the industrial revolution has entered the era of IT with the knowledge economy in the trend of globalization. The 4.0 mankind development of ICT, especially the Internet has had a strong impact and make changes to all activities profound social life of every country in the world. Through surveys in six high School, interviewed 85 managers and teachers on the status of the management of information technology application in teaching, author of the article used the SWOT method to distribute surface strength, weaknesses, opportunities and challenges from which to export 7 management measures consistent with reality. 7 measures have been conducting trials and the results showed that 07 measures of necessary and feasible.

“We cannot discriminate against someone without an eye or a leg … But I do look at obesity”: Statistical discrimination and employers’ recruitment strategies at housecleaning service companies in Johannesburg

2019 ◽  
Vol 40 (1) ◽  
pp. 25-41
Author(s):  
David Du Toit
Keyword(s):  
South Africa ◽  
Domestic Work ◽  
Domestic Workers ◽  
Recruitment Strategies ◽  
Strong Impact ◽  
Recruitment Process ◽  
Demographic Profile ◽  
Job Seeking ◽  
Service Companies ◽  
Personal Skills

The landscape of paid domestic work has changed considerably in recent years with the growth in the number of housecleaning service companies in South Africa and elsewhere. Housecleaning service companies transform domestic work into a service economy where trained domestic workers render a professional cleaning service to clients. In South Africa, little is known about the factors that employers at housecleaning service companies take into consideration during the selection and recruitment process. A key feature of paid domestic work is the gender, class and race constructions of domestic workers, the vast majority of whom are women, usually women of colour, from low socio-economic backgrounds. Whether we are seeing a change in the demographic profile of domestic workers with the growth of housecleaning service companies remains unclear. This paper therefore focuses on the recruitment strategies of employers at selected housecleaning service companies in Johannesburg in an attempt to shed light on the challenges that jobseeking domestic workers may face. Open-ended interviews with managers revealed that gender, race, age, long-term unemployment, and technical and personal skills of job-seeking domestic workers have a strong impact on the recruitment process, while immigration status plays a somewhat reduced role. This paper concludes that housecleaning service companies have not changed the demographic profile of domestic workers in South Africa yet, and that paid domestic work is still predominantly a black woman’s job.

When Do Psychopathic Traits Affect Cooperative Behavior?: An Iterated Prisoner's Dilemma Experimental Study

2020 ◽  
Author(s):  
M Testori ◽  
M Kempf ◽  
RB Hoyle ◽  
Hedwig Eisenbarth
Keyword(s):  
Prisoner's Dilemma ◽  
Cooperative Behavior ◽  
Prisoner’S Dilemma ◽  
Selection Procedure ◽  
Psychopathic Traits ◽  
Strong Impact ◽  
Iterated Prisoner's Dilemma ◽  
Human Decision ◽  
The Impact ◽  
Iterated Prisoner’S Dilemma

© 2019 Hogrefe Publishing. Personality traits have been long recognized to have a strong impact on human decision-making. In this study, a sample of 314 participants took part in an online game to investigate the impact of psychopathic traits on cooperative behavior in an iterated Prisoner's dilemma game. We found that disinhibition decreased the maintenance of cooperation in successive plays, but had no effect on moving toward cooperation after a previous defection or on the overall level of cooperation over rounds. Furthermore, our results underline the crucial importance of a good model selection procedure, showing how a poor choice of statistical model can provide misleading results.

GOOD GOVERNANCE, AKUNTANSI PEMERINTAHAN DAN EKONOMI KERAKYATAN

2007 ◽  
Author(s):  
Yuskar Yuskar
Keyword(s):  
Private Sector ◽  
Social Welfare ◽  
Natural Resources ◽  
Good Governance ◽  
Financial Economic ◽  
Strong Impact ◽  
Governance Mechanism ◽  
Literature Study ◽  
The Public ◽  
The Government

Good governance is a ware to create an efficient, effective and accountable government by keeping a balanced interaction well between government, private sector and society role. The implementation of a good governance is aimed to recover the public trust for the government that has been lost for the last several years because of financial, economic and trust crisis further multidimensional crisis. The Misunderstanding concept and unconcerned manner of government in implementing a good governance lately have caused unstability, deviation and injustice for Indonesia society. This paper is a literature study explaining a concept, principles and characteristics of a good governance. Furthermore, it explains the definition, development and utility of an efficient, effective and accountable government in creating a good governance mechanism having a strong impact to the democratic economy and social welfare. It also analyzes the importance of government concern for improving democratic economy suitable with human and natural resources and the culture values of Indonesia.

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