scholarly journals Improving the quality of superphosphate fertilizer resulting from the use of low-quality phosphate rock

Author(s):  
Mahmoud Mohammed Ahmed ◽  
Emad Alkatory ◽  
Atef Hemdan Ali ◽  
Wafaa Mahmoud Abd-Elhamied

The aim of this paper is to improve the quality of superphosphate fertilizer resulting from the use of low quality phosphate rock by the use of additives as Illite clay, The use of Glauconite rock (green sand) and illite rock (green clay) in the abu tartur phosphate's region – new valley and mixing it with low quality phosphate rock (22%) for the production of fertilizers with higher quality and rich with the essential elements for plants (N, K) which aren't exist in low quality phosphate rock individually, an industrial sample test had been done and a mixed fertilizer had been produced (Elayte rock and low quality phosphate (22% ) as 1:1).

2021 ◽  
Vol 13 (3) ◽  
pp. 1109
Author(s):  
Edgar Ricardo Oviedo-Ocaña ◽  
Angélica María Hernández-Gómez ◽  
Marcos Ríos ◽  
Anauribeth Portela ◽  
Viviana Sánchez-Torres ◽  
...  

The composting of green waste (GW) proceeds slowly due to the presence of slowly degradable compounds in that substrate. The introduction of amendments and bulking materials can improve organic matter degradation and end-product quality. However, additional strategies such as two-stage composting, can deal with the slow degradation of green waste. This paper evaluates the effect of two-stage composting on the process and end-product quality of the co-composting of green waste and food waste amended with sawdust and phosphate rock. A pilot-scale study was developed using two treatments (in triplicate each), one being a two-stage composting and the other being a traditional composting. The two treatments used the same mixture (wet weight): 46% green waste, 19% unprocessed food waste, 18% processed food waste, 13% sawdust, and 4% phosphate rock. The traditional composting observed a higher degradation rate of organic matter during the mesophilic and thermophilic phases and observed thermophilic temperatures were maintained for longer periods during these two phases compared to two-stage composting (i.e., six days). Nonetheless, during the cooling and maturation phases, the two treatments had similar behaviors with regard to temperature, pH, and electrical conductivity, and the end-products resulting from both treatments did not statistically differ. Therefore, from this study, it is concluded that other additional complementary strategies must be evaluated to further improve GW composting.


Author(s):  
Qi D. Van Eikema Hommes

As the content and variety of technology increases in automobiles, the complexity of the system increases as well. Decomposing systems into modules is one of the ways to manage and reduce system complexity. This paper surveys and compares a number of state-of-art components modularity metrics, using 8 sample test systems. The metrics include Whitney Index (WI), Change Cost (CC), Singular value Modularity Index (SMI), Visibility-Dependency (VD) plot, and social network centrality measures (degree, distance, bridging). The investigation reveals that WI and CC form a good pair of metrics that can be used to assess component modularity of a system. The social network centrality metrics are useful in identifying areas of architecture improvements for a system. These metrics were further applied to two actual vehicle embedded software systems. The first system is going through an architecture transformation. The metrics from the old system revealed the need for the improvements. The second system was recently architected, and the metrics values showed the quality of the architecture as well as areas for further improvements.


2013 ◽  
Vol 2 (1) ◽  
pp. 10 ◽  
Author(s):  
Marta Nobile ◽  
Elena Garavelli ◽  
Barbara Gagliardi ◽  
Silvia Giovanelli ◽  
Paolo Rebulla ◽  
...  

<em>Background</em>. The Center for Transfusion Medicine, Cell Therapy and Cryobiology, Milan, Northern Italy, is the headquarter of the POLI-MI biobank. It co-ordinates the biobank activities of the Fondazione Ca’ Granda Ospedale Maggiore Policlinico of Milan. Such activities require specific safeguarding of donors’ rights and protection of sensitive and genetic data. The Fondazione Ca’ Granda Ospedale Maggiore Policlinico has set up a project on informed consent with the aim of developing awareness and understanding of this issue. Within this project, it has been decided to evaluate how consent for biobanking material is expressed. <em>Design and methods.</em> The aim of the study was to evaluate the quality and completeness of consent to biobanking in the POLI-MI biobank. This was a retrospective study carried out in 2012 on samples of consent declarations collected by biobank units in 2011. Some units used a single, standard consent model available from a previous POLI-MI biobank workgroup. Other units used models which had been previouly formulated. Evaluation was made using a form that indicated the essential elements of consent. <em>Results</em>. A total of 48 consent declarations were collected using the single, standard model and 84 were collected using other models. The consent declarations that used the single, standard model were found to be the most complete and were filled in better than other models. <em>Conclusions</em>. Progressive adoption of a simple, standard consent model is expected to improve the quality of consent acquisition. Regular audit of the compliance of consent practices with ethical and legal requirements is mandatory to improve the quality of research biobanking.


BMJ Leader ◽  
2021 ◽  
pp. leader-2021-000458
Author(s):  
William O Cooper ◽  
Nancy M Lorenzi ◽  
Heather A Davidson ◽  
Cynthia A Baldwin ◽  
Daniel M Feinberg ◽  
...  

BackgroundCrisis plans for healthcare organisations most often focus on operational needs including staffing, supplies and physical plant needs. Less attention is focused on how leaders can support and encourage individual clinical team members to conduct themselves as professionals during a crisis.MethodsThis qualitative study analysed observations from 79 leaders at 160 hospitals that participate in two national professionalism programmes who shared their observations in focus group discussions about what they believed were the essential elements of leading and addressing professional accountability during a crisis.ResultsAnalysis of focus group responses identified six leadership practices adopted by healthcare organisations, which were felt to be essential for organisations to navigate the crisis successfully. Unique aspects of maintaining professionalism during each phase of the pandemic were identified and described.ConclusionsLeaders need a plan to support an organiation’s pursuit of professionalism during a crisis. Leaders participating in this study identified practices that should be carefully woven into efforts to support the ongoing safety and quality of the care delivered by healthcare organisations before, during and after a crisis. The lessons learnt from the COVID-19 pandemic may be useful during subsequent crises and challenges that a healthcare organisation might experience.


The Batuk ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 42-52
Author(s):  
Makshindra Thapa

The main objective of this paper is to present empirical findings regarding service quality being offered by Nepalese commercial banks. The SERVQUAL gap analysis has-been applied to measure extent of service quality expected and actually perceived by the customers within five dimensions; tangibles, reliability, responsiveness, assurance and empathy. The gap analysis finding is based on responses of 216 bank customers. A questionnaire survey conducted consisting the SERVQUAL instrument with 22 items used for the survey originated by Parasuraman et al. (1988). The result of gap analysis showed that there remarkable service quality gaps in all five dimensions of SERVQUAL. Empathy and assurance have more gaps relative to other dimensions. Independent sample test showed that there is no significant difference between male and female respondent’s perceived gaps in service quality of these banks.


Author(s):  
Heather Haq ◽  
Amy R. L. Rule ◽  
Alexandra Coria ◽  
Lineo K. Thahane ◽  
Regina M. Duperval ◽  
...  

As North American hospitals serve increasingly diverse patient populations, including recent immigrants, refugees, and returned travelers, all pediatric hospitalists (PHs) require foundational competency in global health, and a subset of PHs are carving out niches focused in global health. Pediatric hospitalists are uniquely positioned to collaborate with low- and middle-income country clinicians and child health advocates to improve the health of hospitalized children worldwide. Using the 2018 WHO standards for improving the quality of care for children and adolescents worldwide, we describe how PHs’ skills align closely with what the WHO and others have identified as essential elements to bring high-quality, sustainable care to children in low- and middle-income countries. Furthermore, North American global health hospitalists bring home expertise that reciprocally benefits their home institutions.


2019 ◽  
Vol 38 (1) ◽  
pp. 175-198 ◽  
Author(s):  
Manuel Idrovo Arguello ◽  
Diego Monferrer Tirado ◽  
Marta Estrada Guillén

Purpose The purpose of this paper is to analyse the influence of service quality dimensions as determinants of the emotional and relational behaviours experienced by the client in bank branches in the post-crisis context experienced by Spanish financial institutions. Design/methodology/approach Data taken from a total of 1,125 customers were analysed through structural equations modelling (EQS6.1) to test the relationships of the proposed model’s variables. Findings The results support the hypotheses stated, with the exception of the influence of a service quality dimension (servicescape) on emotions during the service. In fact, the dimensions of the service quality of an intangible nature (personnel, outcome and social) are determinants of the positive emotions and relational behaviours of clients around the service provided by the branches. For its part, servicescape quality, of a more tangible nature, exerts indirect influence on the other dimensions that compose the quality of service. Practical implications This paper provides senior bank executives established evidence on the degree of influence of the different dimensions in relation to the quality of service in the bank branch. Furthermore, it emphasises the importance of emotional factors during service as essential elements in strengthening customer–staff relationships under a non-transactional dynamic. Originality/value This paper has adopted an analytical holistic, theoretical and empirical perspective on the impact of the different dimensions of service quality (servicescape, personnel, outcome and social) as well as to the emotions experienced by banking customers during services and its lasting effect on customer engagement and customer advocacy.


2008 ◽  
Vol 13 (04) ◽  
pp. 463-484 ◽  
Author(s):  
TATIANA WAH

This paper explores the phenomenon of Afro-Caribbean immigrant enterprise viability in two US counties heavily populated by Afro-Caribbean immigrants: Kings (Brooklyn), New York, and Miami-Dade, Florida. It aims to construct an understanding of enterprise viability as it is understood by local economic development agency (LEDA) directors by examining the meanings of their experiences and interactions with this particular group of immigrants. It posits that objectively studying empirical indicators of enterprise viability only from the scholar's or entrepreneur's perspective would not get at the essential structure of enterprise viability as experienced by providers of enterprise development services. Examining the meaning providers ascribe to their experiences lends to better understanding of how potentials and challenges to enterprise viability manifest on the ground. Opportunities, challenges, expectations and unmet needs are exposed. Progress can then be made to provide immigrant entrepreneurs with the quality of programs and policy that can make them viable. Findings suggest that understanding the "American system" and learning and applying basic modern business functions are essential elements in enterprise development and viability. Professionalization, formalization, and systematization effectuate migration from periphery to mainstream.


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