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1
Will, Robert S. "Rescue Excavations at Plean Castle, Stirling District". Glasgow Archaeological Journal 21, n. 1 (gennaio 1998): 45–52. http://dx.doi.org/10.3366/gas.1998.21.21.45.
Testo completoAbstract (sommario):
Summary Excavations within the courtyard of the fifteenth century towerhouse were undertaken to fulfil conditions of Scheduled Monument Consent. They revealed some new details of the medieval structures, but encountered few stratified deposits. Most secure archaeological deposits appear to have been removed during the early twentieth century restoration.
2
Madeira, Claudio Valdetaro, e Leonardo Borghi. "Estrutura dos depósitos sedimentares quaternários da bacia hidrográfica do rio Santana, Miguel Pereira, Estado do Rio de Janeiro". Anuário do Instituto de Geociências 22 (1 gennaio 1999): 8–22. http://dx.doi.org/10.11137/1999_0_8-22.
Testo completoAbstract (sommario):
The present work deals with stratigraphy, sedimentology and geomorphology of Quaternary sedimentary deposits of Santana river hydrographic basin. through facies and arquitectural elements descriptions. Based on five arquitectural elements characterized by ten lithofacies the following structural and depositional evolutions were scheduled: 1) formation of thick soil horizons over the basement; 2) deposition of several alluvial fans on the soils (lithofacies Gm and Fm, element E); 3) above an unconformity we can recognize a fluvial system, characterized by a non well drainage floodplain. This floodplain is overlaid by high-sinuosity channels (lithofacies Sp and St, element C) genetically related to other floodplain (lithofacies Fl and Fsc, element A) where the interfigering with crevasse splay deposits (lithofacies Sh, Sl, and Sp, element B) is ususal; 4) an erosional phase suceed by a new depositional phase characterized by low-sinuosity channels (lithofacies Gp, Gt, Sp, St, and Sh, element D). Nowadays anthropogenic action produces a new erosional phase. The geomorphological features recognized were scheduled: 1) the present floodplain 1.5m above the river bed; 2) the low terrace ( named T2) 5m above the river bed and its deposits is related to element D; 3) the high terrace ( named T1) 11m above the river bed and its deposits is related to elements A, B, C and E.
3
Chaudhury, Suman, e Sukanta Sarkar. "NAVIGATING FINANCIAL FRONTIERS: AN EXPLORATORY STUDY OF INSTITUTIONAL FINANCE IN ASSAM". VIDYA - A JOURNAL OF GUJARAT UNIVERSITY 3, n. 1 (26 dicembre 2024): 113–18. https://doi.org/10.47413/8sgxh147.
Testo completoAbstract (sommario):
The paper discussed the progress and challenges of institutional finance in Assam. It has been observed that the commercial banks of Assam are leading in deposits and dispersion of credits in this north-eastern state of India. The deposits and credit of the scheduled commercial banks are increasing continuously. Those credit and deposits are higher in scheduled commercial banks situated in the urban areas. Savings and term accounts contribute to more deposits in the banks. Advance to weaker section is highest in the regional rural banks. The public sector banks are in a leading position in disbursing KCC numbers and KCC amounts. There are many challenges before institutional finance in Assam. Therefore, the government should introduce proper banking policies to mitigate such challenges. This paper contributes to the broader goal of promoting sustainable development, reducing disparities, and enhancing the overall well-being of Assam’s populace. It is also the first to address the critical gaps in the understanding of the financial landscape of Assam, a region undergoing rapid socio-economic transformation. The findings of this study can ignite policy formulation and strategic decision-making processes at both the regional and national levels. Hence, this paper discusses the progress and challenges of institutional finance in the state.
4
Jeon, Soon-Hyeok, Yong-Beom Lee, Kyung-Hee Lee e Do-Haeng Hur. "Magnetite Deposition Behavior on Alloy 600 and Alloy 690 Tubes in Simulated PWR Secondary Water". Coatings 12, n. 9 (24 agosto 2022): 1231. http://dx.doi.org/10.3390/coatings12091231.
Testo completoAbstract (sommario):
Fouling due to magnetite deposition has been a major concern for steam generator (SG) tubing of pressurized water reactors (PWRs). Alloy 690 SG tubes are now used for new plants or are scheduled to replace old Alloy 600 tubes of operating plants. The purpose of this study is to investigate the magnetite deposition behavior on the two different SG tube materials: Alloy 600 and Alloy 690. Deposition tests were conducted under a sub-cooled nucleate flow boiling condition in simulated secondary water of a PWR at 270 °C. After these tests, we observed that the tube surfaces were covered with deposits composed of porous magnetite particles. We found approximately 30% more magnetite deposits on Alloy 600 than on Alloy 690. The electrostatic repulsive force between the magnetite particles and the Alloy 600 surface was only half of that between the magnetite particles and the Alloy 690 surface, resulting in an increase in the deposit mass.
5
Chaudhury, Dr Suman Kalyan, Dr Sukanta Sarkar e Dr K. Harun. "Navigating Financial Frontiers: An Exploratory Study of Institutional Finance in Assam". International Journal of Economics, Business and Management Research 09, n. 02 (2025): 30–39. https://doi.org/10.51505/ijebmr.2025.9203.
Testo completoAbstract (sommario):
This paper examines the progress and challenges of institutional finance in Assam. It reveals that the commercial banks of Assam are leading in deposits and dispersion of credits in the northeastern region of India. Deposit and credit disbursement of banks are showing consistent growth. Scheduled commercial banks in urban areas account for the largest share of these deposits and credits, with savings and term accounts being the primary contributors to deposit growth. Weaker section advance to weaker section advance is highest in a regional rural bank. Public sector banks are in a leading position in disbursing KCC numbers and KCC amounts. There are many challenges before the institutional finance in Assam. Therefore, the government should introduce proper banking policies to mitigate such challenges. This study aims to contribute to the broader goal of promoting sustainable development, reducing disparities, and enhancing the overall well-being of Assam’s populace. This paper is the first to address the critical gap in the understanding of the financial landscape of Assam, a region undergoing rapid socio-economic transformation. As the first to specifically address the financial landscape of Assam during its rapid socio-economic transformation, the paper's findings can inform policy and strategic decisions at both regional and national levels.
6
Sharma, Madhu. "Role of the Insurance and Banking Sector in the Indian Economy". Journal Global Values XV, n. 1 (30 giugno 2024): 19–25. https://doi.org/10.31995/jgv.2024.v15i01.03.
Testo completoAbstract (sommario):
In the 21st Century Banking Plays an Important role. It is Simplest From Where Society Recorganizes the Need For Stroing Money and the Need a Safe Place to Store it. This Safe Place Ultimately Evolved into Financial Institutions that accept deposits And Make Loan I,e; the Modern Commercial. According to the Oxford Dictionary. An establishment for the Custody of Money That Pays for the Customer’s Order, (Indian Bank System) consists of an Organized Sector and an Unorganized Sector. Organized Sectors Consist of the Reserve Bank of India, Commercial Bank, and Co-Operate Bank. Commercial bank Counts of Scheduled banks, On-Scheduled banks, State cooperation, the apex body, IDBI, NABARD, Bank, etc.
7
Birajdar, Bhaskar. "Voyage of Indian Banking Sector: 1979-2007". Journal of Global Economy 6, n. 4 (31 ottobre 2010): 243–52. http://dx.doi.org/10.1956/jge.v6i4.64.
Testo completoAbstract (sommario):
Observing through the voyage of India Banking Sector, it could be concluded that Indian banking system is operating under competitive state of affairs and earns revenues as if under monopolistic competition, despite not depending on traditional source of fund in the form of deposits as profitability, i.e., return on assets are increasing and approaching towards industry ratio. But still foreign banks functioning in India are on a higher plane with respect to its performance in comparison with other bank groups. Costs of deposits and return on advances of all scheduled commercial banks have declined in the post reform period. However, return on advances was approaching closer to industry average showing competition amongst the banks in making profit on the interest rate front.
8
Chaikovskyi, Yaroslav. "The development of bank lending to corporate clients in Ukraine in times of economic cycles". Herald of Ternopil National Economic University, n. 4 (86) (12 dicembre 2017): 72–87. http://dx.doi.org/10.35774/visnyk2017.04.072.
Testo completoAbstract (sommario):
The article considers bank lending to corporate clients in Ukraine overcoming the issues related to economic cycles. The dynamics of gross domestic product, total assets, and credit portfolios of Ukraine’s banks over the period between 2012 and 2016 is analyzed. The changes in the composition of bank loans to non-financial corporations are analyzed in terms of scheduled payments, forms of currencies, target allocation and economic activities. Additionally, the dynamics and composition of residents’ deposits mobilized by deposit-taking corporations are considered in terms of scheduled payments over the above period. The major factors that hinder the recovery of bank lending to corporate clients are identified. It is highlighted that the main obstacles to the development of banking lending to corporate clients in Ukraine in times of economic cycles are as follows: high interest rates; a significant percentage of unprofitable enterprises and loan arrears in bank loan portfolios; an increase of non-performing loans (NPL); the fact that banks, having sufficient liquidity for lending to economy-boosting projects, prefer to purchase government securities; corrupt practices of granting loans to affiliated companies (insider loans). The percentage of unprofitable enterprises in Ukraine in 2016 is determined and analyzed by type of economic activity. Based on the analysis performed, some assumptions are made about the trends of the development of bank lending to corporate clients in Ukraine and proposals on further harmonization of bank lending to corporate clients in times of economic cycles are set out.
9
Auguścik-Górajek, Justyna, Jacek Mucha, Monika Wasilewska-Błaszczyk e Wojciech Kaczmarek. "Problems of Estimating the Resources of Accompanying Elements: A Case Study from the Cu-Ag Rudna Deposit (Legnica-Głogów Copper District, Poland)". Minerals 11, n. 12 (18 dicembre 2021): 1431. http://dx.doi.org/10.3390/min11121431.
Testo completoAbstract (sommario):
As a result of the exploitation of ore deposits, in addition to the main elements, the accompanying elements are also partially recovered. Some of them increase the profitability of exploitation, while others reduce it because they hinder the recovery of the main elements and thus increase the costs of the recovery process. A comprehensive economic calculation to assess the profitability of ore mining depends on an appropriately accurate estimation of the resources of both the main and associated elements. This issue was analyzed with the example of the Cu-Ag Rudna ore deposit (LGCD, Poland). The subject of the assessment was the resources prediction accuracy of the main element (Cu) and four (4) accompanying elements (Co, Ni, Pb, and V) using geostatistical estimation method, in particular the ordinary kriging after the estimation of the relative variograms for describing the spatial variability structures of elements abundance. It was found that the standard kriging errors (deviations) in accompanying elements resources that are scheduled for exploitation within a one-year period in some parts of deposits are drastically greater (2 to 5 times) than the estimation errors of the main element resources. This is due to the sparse sampling pattern for their determinations and/or the high variability (among others nugget effect) of their abundance. In this situation, without additional sampling and a denser sampling pattern, the possibilities of a reliable assessment of the influence of accompanying elements on the economic consequences of exploitation are very limited.
10
D'Avignon, Robyn. "Shelf Projects: The Political Life of Exploration Geology in Senegal". Engaging Science, Technology, and Society 4 (1 marzo 2018): 111. http://dx.doi.org/10.17351/ests2018.210.
Testo completoAbstract (sommario):
Since the early 2000s, southeastern Senegal has emerged as a premier gold exploration and mining frontier. At present, the Sabodala gold mine, owned by the Canadian company Teranga Gold, is the only operational gold mine and mill in Senegal. But two more open-pit gold operations are scheduled to open this year, and several other companies have announced discoveries of industrial-scale deposits. By documenting the shifting ownership and exploration of the Sabodala deposit, this article draws attention to how the protracted phase of mineral research shapes the political life of mining operations in Africa and elsewhere in the global South. Geological exploration in colonial and post-colonial Senegal, as in much of Africa, has relied heavily on the expertise of indigenous miners and smelters. Mining Sabodala has thus unearthed multi-vocal and contested histories of gold discovery. Historians of science have established that field assistants and experts in Africa have produced agronomic and medical knowledge typically credited to “the West.” By extending this argument to gold exploration, the article brings African history into dialogue with an emergent anthropology of subterranean knowledge production.
11
Mishra, Mahendra R., e Sunil S. Narwade. "An Empirical Analysis of Deposits Mobilization by the Scheduled Commercial Banks and Economic Growth: Evidence from India". Asian Journal of Research in Business Economics and Management 8, n. 8 (2018): 1. http://dx.doi.org/10.5958/2249-7307.2018.00065.8.
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Lamasov, Denis A. "REDUCING THE RISK OF INCREASED TIMELINES AND COSTS IN THE DEVELOPMENT OF NEW MINING DEPOSITS IN RUSSIA THROUGH THE USE OF PROJECT FINANCING". EKONOMIKA I UPRAVLENIE: PROBLEMY, RESHENIYA 12/14, n. 141 (2023): 34–42. https://doi.org/10.36871/ek.up.p.r.2023.12.14.004.
Testo completoAbstract (sommario):
Investment projects in the mining industry of the Russian Federation, particularly those related to the development of world-class deposits, are often characterized by extended implementation periods and high costs exceeding 1 billion USD. During the project execution, the financial situation of the sponsor may change, which frequently leads to delays in the delivery of key technological equipment and, consequently, to an increase in project duration and costs. The application of project financing ensures full funding for the projects, including the supply of necessary equipment, regardless of changes in the financial condition of the sponsor. This reduces the risk of delays and cost overruns, contributing to the successful completion of the projects within the scheduled timeframe.
13
Anyanwu, U. O., O. C. Okafor e C. A. Nkwor. "A Scheduling Model in Capturing Methane Gas from Methane Clathrates Deposits". Journal of Engineering Sciences 10, n. 1 (2023): G1—G13. http://dx.doi.org/10.21272/jes.2023.10(1).g1.
Testo completoAbstract (sommario):
The execution of any project type, especially engineering-based projects, is usually time-based, efficiency-driven, and cost-effective. These factors are the deterministic parameters that engineer successful project completion. The application of scheduling models remains the best technique for achieving these three factors to their best degrees. Therefore, this study was centered on the impact study of applying the scheduling model in harvesting methane gas from methane clathrates deposits. Various data on gas hydrate reserves in the Niger Delta region of Nigeria were collected from relevant literature, studied, and analyzed. Such data includes the pictorial representation and description of the gas hydrate site in the Niger Delta region of Africa and various shapes and sizes of gas hydrate perimeters in the studied region positions of the gas reserves. The normal faults are projected on a bathymetric map of the study area and the bathymetric map of the Pockmark (with the stippled black line indicating the sea floor projection of a prominent N-S trending fracture in 3-D seismic data). As a type of scheduling model, the critical path method (CPM) was applied to develop the project’s work sequence using the activity on node (AON) architectural technique and Primavera P6 software after carefully identifying the primary operations involved in the project and their respective sub-operations or work breakdown structure (WBS). The risks associated with each operation were meticulously identified, with their consequent impact and exposure matrix determined using probabilistic measures of 1-5 according to the degree of the risk. Mitigation strategies were recommended for all the identified risks. The cost benefits of the project were X-rayed using parameters such as net present value (NPV), project payback time, internal rate of return (IRR), and net cumulative cash flow. From the results obtained, the CPM schedule showed that the project execution would last approximately ten months. All the operations involved in the project execution plan were all critical, proving that each activity should be completed within the scheduled run period. Else, the entire project would be affected. Also, risks with a high exposure matrix of 25, 12, and 4 were mitigated to 5, 3, and 0 using the recommended strategies. In addition, the project yielded an NPV of $20,736,951.04for the run period of 22 years after the execution of the project, IRR of 14%, and a payback time of 8 years (adding 2023 – the year of project execution) provided the daily production rate is maintained within 60,000-65,000MSCF/day. If the daily production rate increases, the cash flow and payback time will decrease. Therefore, the application of CPM in extracting methane gas from gas hydrates positively affected the operation through the vivid insights provided in workflow pattern/methodology risks effects and cost benefits.
14
Lucan, Dumitra, Gheorghița Jinescu e Alice Dinu. "CANDU steam generator secondary side fouling characteristics". Journal of Engineering Sciences and Innovation 4, n. 1 (5 marzo 2019): 31–42. http://dx.doi.org/10.56958/jesi.2019.4.1.31.
Testo completoAbstract (sommario):
In the process of the equipment degradation in the secondary circuit of a CANDU plant an essential role is played by the formation, transportation and deposition of corrosion products and impurities. Minimizing the presence of these corrosion products in a key equipment, such as the steam generator, is a determining factor in ensuring optimum operation in safe conditions and without the risk of unplanned plant shutdowns resulting in direct and indirect economic costs. Through its objective, this work is an opportunity to characterize the chemical composition of the deposits removed from the Cernavoda NPP steam generator secondary side by a scheduled shutdown and to synthesize the main information from the specialty literature in the field of degradation of the steam generator tube - tubesheet joint regions.
15
Wood, Dan, e Andre van As. "Discovery and Underground Mining of Large Deposits: Essential Training to Ensure Copper Supply". SEG Discovery, n. 139 (1 ottobre 2024): 11–23. http://dx.doi.org/10.5382/geo-and-mining-25.
Testo completoAbstract (sommario):
Editor’s note: The aim of the Geology and Mining series is to introduce early career professionals and students to various aspects of mineral exploration, development, and mining in order to share the experiences and insight of each author on the myriad of topics involved with the mineral industry and the ways in which geoscientists contribute to each. Abstract A supply shortfall of at least 6 million tonnes (Mt) Cu is expected by 2031—with total demand now forecast to increase from 25 Mt in 2023 to >36 Mt, and possibly to a suggested 50 Mt by 2050—given the present trend in demand. The deficit can be partially filled by increased mine production, expanding currently installed mine production capacity, and increasing Cu recycling. However, satisfying demand in 2050 as the demand-to-mining supply gap increases will require the accelerated discovery of at least five large Cu deposits—individually producing >0.5 to >1.0 Mt/yr Cu—and their related mine development, by 2030. These five deposit discoveries are required to replace mines scheduled to close in the 2050s, given the >20 years needed to take a deposit from discovery to mine production. The two largest sources of Cu supply, porphyry and sediment-hosted Cu deposits, can potentially fill the gap if enough discoveries are made; however, there is no evidence that this is about to occur. Future porphyry Cu discoveries are expected to be mined underground, mostly by a caving method. The demand increase is occurring at a time when the capital intensity of porphyry Cu mine development has almost doubled since 2006. We predict that the only solution to the future Cu demand-supply challenge for society and the mining industry in the short to medium term rests with simple demand-supply economics and a substantially increased Cu price. Copper substitution by other materials and recycling could potentially benefit from a significantly increased price; however, the major advantage will be conferred on deposits amenable to open-pit mining that are undeveloped because of price-dependent, failed feasibility studies. The challenge of possibly doubling Cu supply by ca. 2050 through developing mines on large Cu deposits—both discovered and undiscovered, in an unprecedented number and in a shorter period—will require a major increase in the number of competent mining industry personnel. This comes at a time when the industry faces an aging workforce, leading to a critical skills gap compounded by a chronic shortage of students graduating in the sciences and engineering with mining-related university degrees. There is an acute shortage of experienced professionals in cave mining, and the substantial number of open-pit mining professionals who are predicted to retire by 2030 will need to be replaced. On-the-job training of geoscientists and engineers after graduation, delivered by experienced practitioners through university-accredited professional development programs, is suggested as the solution.
16
Lavy, Ron, Inbar Gatot, Ilya Markon, Zahar Shapira, Bar Chikman, Laurian Copel e Ariel Halevy. "The Role of Diagnostic Laparoscopy in Detecting Minimal Peritoneal Metastatic Deposits in Patients With Pancreatic Cancer Scheduled for Curative Resection". Surgical Laparoscopy, Endoscopy & Percutaneous Techniques 22, n. 4 (agosto 2012): 358–60. http://dx.doi.org/10.1097/sle.0b013e318259f172.
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Petrov, O. V., e M. Smelror. "Uniting the Arctic frontiers – International cooperation on circum-Arctic geological and geophysical maps". Polar Record 51, n. 5 (30 settembre 2014): 530–35. http://dx.doi.org/10.1017/s0032247414000667.
Testo completoAbstract (sommario):
ABSTRACTFollowing an initiative taken by the Russian Ministry of Natural resources and Ecology and by the Federal Agency of Mineral Resources (Rosnedra) in 2003 international cooperation on compiling a new generation of circum-Arctic geological and geophysical maps (in scale 1: 5 000 000) was undertaken by a consortium of national agencies from Canada, Denmark, Finland, Norway, Russia, Sweden and the USA. The polar stereographic maps include onshore and offshore geological coverage to 60° N. The bedrock map and database was first published in 2008, the geophysical maps were completed in 2010, while a tectonic map is currently in press. The new circum-Arctic maps are formally published under the Comission for the Geological Map of the World (CGMW/CCGM). A metallogenic map and database of the main occurrences of onshore and offshore metal deposits is scheduled to be completed in 2016.
18
Suri, Marta. "Upaya Peningkatan Pengetahuan tentang Penyakit Jantung Koroner pada Lansia di Posyandu Lansia Kelurahan Rawasari". Jurnal Abdimas Kesehatan (JAK) 3, n. 3 (19 novembre 2021): 249. http://dx.doi.org/10.36565/jak.v3i3.195.
Testo completoAbstract (sommario):
Coronary heart disease is caused by various factors that can cause an increase in the incidence / deposits of cholesterol which narrow the vessels in the whole body including the coronary vessels. Coronary heart disease has become the leading cause of death in Indonesia. According to WHO in 2005, the number of deaths from cardiovascular disease (especially coronary heart disease, stroke, and rheumatic heart disease) increased globally to 17.5 million from 14.4 million in 1990. The results of the situation have been obtained from RT 12 KelurahanRawasariKecamatanAlamBarajo, Jambi City, in this sub-districthealth services such as Intregated Service Post (Posyandu) have been established. However, there is no scheduled health education as a promotive and preventive effort to overcome the problem of the high incidence of people experiencing heart disease. The results of health education activities for the elderly are expected to understand the concept of nursing problems that cause coronary heart disease
19
Le Fessant, Elouan, Anne-Cécile Gregoire, Nicolas Nuns, Pardis Simon, Anne-Sophie Mamede, Jean-François Paul e Laurent Cantrel. "ToF-SIMS and XPS characterizations of model fission products (I, Cs) deposits after thermal treatment simulating late phase conditions of a nuclear power plant severe accident". EPJ Web of Conferences 273 (2022): 01004. http://dx.doi.org/10.1051/epjconf/202227301004.
Testo completoAbstract (sommario):
During a Severe Accident (SA) occurring in a nuclear power plant, many Fission Products (FP) are released from the degraded fuel and are transported in the Reactor Coolant System (RCS). Depending on their volatility, FP can be either deposited on the surface of the Reactor Coolant System (RCS) or transported into the containment building from where they may be released into the environment in case of early containment failure. This was the case for the Fukushima Daiichi (FD) accident with important FP releases which were observed following the containment vessel failure which lasted up to several weeks after the accident. If early phase releases were well predicted by SA simulation codes, delayed releases were not correctly predicted [1]. Such discrepancies can be attributed to the revaporization of deposits inside the RCS which were not yet modeled in the SA simulation tools. Previous experiments over the past 20 years evidenced the possible formation and revaporization of CsI [2]. However, up to now, no clear CsI revaporization mechanism has been determined. In order to propose a mechanism, this study (scheduled within the OECD/NEA/ESTER project) aims at determining the speciation of each species remaining on the substrate after revaporization tests under different conditions using XPS and ToF-SIMS (X-ray Photoelectron Spectroscopy and Time of Flight Secondary Ion Mass Spectrometry. These two combined techniques allow the identification of the main species of the residue leading to the proposition of two revaporization reactions.
20
Solajic, Nenad, Jelena Krcedinac, Golub Samardzija, Miljan Milic e Aleksandra Lovrenski. "Granular cell tumor of the bronchus coexisting with a bronchogenic adenocarcinoma: Case report". Archive of Oncology 19, n. 1-2 (2011): 31–33. http://dx.doi.org/10.2298/aoo1102031s.
Testo completoAbstract (sommario):
Pulmonary granular cell tumors (GCTs) are uncommon and usually benign and their coexistence with bronchogenic adenocarcinoma is rare. We report the case of 50-year-old woman with GCT located in the left lung hilum, which occurred simultaneously with a primary bronchogenic adenocarcinoma in the same area. Contrast CT scan of the head revealed secondary deposits in the right cerebellum, presumably of adenocarcinomas origin. Bronchoscopy revealed narrowing on the beginning of the left lingular bronchus and infiltration of the medial distal wall of the left main bronchus. Large tumor cells with eosinophilic granular cytoplasm were seen on light microscopic examination. Tumor cells fully occupied submucosa and had small, round nuclei with no signs of pleomorphism. Immunohistochemically, these cells were S-100 positive. In small area, groups of atypical oval-shaped cells of adenocarcinomas origin were noticed. This confirmed the diagnosis of GCT coexisting with adenocarcinoma. After consultation with oncologists, the patient was scheduled for further polychemotherapy and radiation treatment.
21
Nuraeni, Ani. "The Implementation of Health Education Interventions to Improve Family Knowledge about Pain Management in Gout Arthritis". JIKO (Jurnal Ilmiah Keperawatan Orthopedi) 7, n. 1 (10 febbraio 2023): 8–11. http://dx.doi.org/10.46749/jiko.v7i1.112.
Testo completoAbstract (sommario):
Gout arthritis is a condition characterised by recurrent attacks of the joints accompanied by crystal deposits. Age, gender, medical history, obesity, diet, and alcohol are the main factors of gout arthritis. Pain management is one strategy used to prevent gout. But few clients are informed of how to apply pain management, thus health education is required to improve client awareness. The goal of this case study is to determine the degree of knowledge before and after receiving health education about pain management. It does this through a descriptive technique using a pretest and posttest design. Data collection used a questionnaire on 2 subjects who had been diagnosed with gout arthritis. The results of the case study showed an increase in family knowledge after being given health education, namely subject 1 scored 48% (low knowledge) to 88% (good knowledge), while subject 2 scored 60% (sufficient knowledge) to 80% (good knowledge). This case study recommends the importance of health education to families with gout arthritis on a scheduled basis which is carried out by health workers
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Kirby, Magnus, Sue Anderson, Paul Bidwell, Ann Clarke, Hilary Cool, Mike Cressey, Alex Croom et al. "Excavations at Musselburgh Primary Health Care Centre". Scottish Archaeological Internet Reports 89 (10 marzo 2020): 1–153. http://dx.doi.org/10.9750/issn.2056-7421.2020.89.
Testo completoAbstract (sommario):
An excavation was undertaken by CFA Archaeology Ltd (CFA) between August and November 2010 on the site of the new Musselburgh Primary Health Care Centre. The site, which lies to the south of Inveresk Road, is centred on NGR 33430 67224. Until its demolition, the area had been occupied by Brunton Wireworks. The Scheduled Monument of Inveresk Roman Fort lies at the top of the steep slope c 50m to the south of the excavation site. The excavation identified six phases of activity on the site, the earliest being a Mesolithic flint scatter (Clarke & Kirby forthcoming). The area was used as a burial ground in the Iron Age and a ring ditch may also be of prehistoric date. Later, six Roman inhumation burials (four of which had been decapitated) and a horse burial were interred, and a possible Roman fortlet was constructed. Across the site, a network of interconnected ditches formed part of a Roman-period field system, which cut through the rampart of the possible fortlet, and through a number of the graves. Along the southern boundary of the site a large accumulation of Roman midden deposits overlay features associated with the field system, although it may have started to build up while the latter was still in use. A post-built structure was also found, one post of which cut a ditch of the field system. The midden deposits extended along the full length of the southern boundary of the site, measuring 110m long by up to 20m wide. Numerous artefacts were recovered, representing the rubbish and discarded personal belongings of the fort occupants. The pottery included samian bowls with personal names scratched on the bases. Evidence from these, together with isotopic analysis of the human skeletons, shows that the ethnic origin of those living in the fort was diverse, as would be expected for the Roman army.
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Kirby, Magnus. "Excavations at Musselburgh Primary Health Care Centre". Scottish Archaeological Internet Reports, n. 89 (2020): 1–153. http://dx.doi.org/10.9750/issn.2056-7421.2020.89.1-153.
Testo completoAbstract (sommario):
An excavation was undertaken by CFA Archaeology Ltd (CFA) between August and November 2010 on the site of the new Musselburgh Primary Health Care Centre. The site, which lies to the south of Inveresk Road, is centred on NGR: NT 3428 7224. Until its demolition, the area had been occupied by Brunton Wireworks. The Scheduled Monument of Inveresk Roman Fort lies at the top of the steep slope c 50m to the south of the excavation site. The excavation identified six phases of activity on the site, the earliest being a Mesolithic flint scatter. The area was used as a burial ground in the Iron Age and a ring ditch may also be of prehistoric date. Later, six Roman inhumation burials (four of which had been decapitated) and a horse burial were interred, and a possible Roman fortlet was constructed. Across the site, a network of interconnected ditches formed part of a Roman-period field system, which cut through the rampart of the possible fortlet, and through a number of the graves. Along the southern boundary of the site a large accumulation of Roman midden deposits overlay features associated with the field system, although it may have started to build up while the latter was still in use. A post-built structure was also found, one post of which cut a ditch of the field system. The midden deposits extended along the full length of the southern boundary of the site, measuring 110m long by up to 20m wide. Numerous artefacts were recovered, representing the rubbish and discarded personal belongings of the fort occupants. The pottery included samian bowls with personal names scratched on the bases. Evidence from these, together with isotopic analysis of the human skeletons, shows that the ethnic origin of those living in the fort was diverse, as would be expected for the Roman army.
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Cantone, C., A. Cemmi, S. Ceravolo, V. Ciccarella, F. Colao, E. Di Meco, I. Di Sarcina et al. "Advancements in Muon Collider Calorimetry: Design, Testing, and Radiation Resistance of the Crilin Calorimeter Prototype". EPJ Web of Conferences 320 (2025): 00023. https://doi.org/10.1051/epjconf/202532000023.
Testo completoAbstract (sommario):
The Crilin calorimeter is a semi-homogeneous calorimetric system that uses Lead Fluoride (PbF2) crystals with UV-extended Silicon Photomultipliers (SiPMs). Proposed for the Muon Collider, it requires high granularity to distinguish signal particles and address substructures for jet identification. Anticipating substantial occupancy due to beam-induced backgrounds, simulations indicate a photon flux with an average energy of 1.7 MeV and approximately 4.5 MHz/cm2 fluence rate. Prioritizing time-of-arrival measurements within the calorimeter is crucial for associating clusters with interaction vertices. The calorimeter’s energy resolution is vital for determining jet kinematics. Extensive radiation hardness studies confirm the system’s effectiveness when operating in a challenging radiation environment, with exposure up to 10 kGy/year total ionizing dose (TID) and a neutron fluence equivalent to 1014 neutrons 1 MeV/cm2/year. Prototype (Proto-1), with two layers of 3×3 PbF2 crystals, achieved a timing resolution below 50 ps for energy deposits exceeding 1 GeV during 2023 tests. A comprehensive overview, including mechanics, electronics, and test beam outcomes, is presented. Construction is underway for a larger 9 9 crystal matrix prototype with 5 layers, to be completed in 2024. Testing is scheduled for the summer of 2025.
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Voit, C. A., A. C. van Akkooi, G. Schäfer-Hesterberg, A. Schoengen, W. Sterry e A. M. Eggermont. "Role of ultrasound (US) and US-guided fine needle aspiration cytology (US-FNAC) prior to sentinel lymph node biopsy (SLNB) in 500 melanoma patients: Reduction of need for SNLB by high US-FNAC SN positive identification rate". Journal of Clinical Oncology 25, n. 18_suppl (20 giugno 2007): 8512. http://dx.doi.org/10.1200/jco.2007.25.18_suppl.8512.
Testo completoAbstract (sommario):
8512 Background: SN status as the important prognostic factor reflects the likelihood of metastatic melanoma and the MSLT-1 trial showed similar 5ys-survival rates of ∼85% both in the SN-staged group and in the watch&wait group. SN-staging far outperforms PET-scanning, since PET is only reliable for detection of metastatic lesions > 125 mm3. SN-staging is an invasive procedure and better screening methods are required to identify early disease in SNs. This ongoing study examines the role of US to demonstrate SN metastasis thus avoiding surgical SN- staging in a proportion of melanoma pts. Methods: In this prospective study 503 consecutive melanoma pts. underwent scintigraphy and then US-exam prior to scheduled SLNB. When US was suspicious for malignant deposits in the SN, pts underwent a FNAC. So far we determined outcome in 400 AJCC staged pts (median Br 2.7 mm). Interim FU-data are updated until 10/06 (mean/median FU 26/24 (1 - 64) mo. For pts with a positive SN we considered the pre-SN US/US-FNAC pos. if either US and/or FNAC were positive. If both were only suspicious, it was considered negative. Results: US identified the SN in 52/80 (86%). Specificity was 99% (317/320) with a PPV of 95% and NPV of 92%. SN identification rate by FNAC increased from 40% in stage pT1a/b to 79% in stage pT4a/b according to the higher probability for nodal disease in higher pT stages (4% in pT1ab vs 57% in pT4ab). FNAC became more sensitive with increasing tu load: SN with deposits of 0.50–1.99 mm were verified in 13/25 (52%), whereas with deposits > 2 mm in 13/16 (83%). 80/400 SNs were histologically malignant with 15/80 (22%) submicroscopic involvement (<0.1 mm), an identical percentage as in the Rotterdam series (van Akkooi, Ann Oncol 2006). Of the node pos. pts, 50% (40/80) already found positive on US guided FNAC could have avoided undergoing a SLNB and proceeded straight to TLND. Histolog. patterns of involvement in 68 SNs were examined: 26/68 showed subcapsular, 6/68 parenchymal and 20/68 combined. Updated DFS and OS will be reported. Conclusions: US of the SN and US-guided FNAC is highly accurate. In this prospective study 50% of the SN positive pts could have been spared the need to undergo a SLNB. No significant financial relationships to disclose.
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Wasilewska-Błaszczyk, Monika, e Jacek Mucha. "Application of General Linear Models (GLM) to Assess Nodule Abundance Based on a Photographic Survey (Case Study from IOM Area, Pacific Ocean)". Minerals 11, n. 4 (17 aprile 2021): 427. http://dx.doi.org/10.3390/min11040427.
Testo completoAbstract (sommario):
The success of the future exploitation of the Pacific polymetallic nodule deposits depends on an accurate estimation of their resources, especially in small batches, scheduled for extraction in the short term. The estimation based only on the results of direct seafloor sampling using box corers is burdened with a large error due to the long sampling interval and high variability of the nodule abundance. Therefore, estimations should take into account the results of bottom photograph analyses performed systematically and in large numbers along the course of a research vessel. For photographs taken at the direct sampling sites, the relationship linking the nodule abundance with the independent variables (the percentage of seafloor nodule coverage, the genetic types of nodules in the context of their fraction distribution, and the degree of sediment coverage of nodules) was determined using the general linear model (GLM). Compared to the estimates obtained with a simple linear model linking this parameter only with the seafloor nodule coverage, a significant decrease in the standard prediction error, from 4.2 to 2.5 kg/m2, was found. The use of the GLM for the assessment of nodule abundance in individual sites covered by bottom photographs, outside of direct sampling sites, should contribute to a significant increase in the accuracy of the estimation of nodule resources.
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Yuvaraja, U., B. Gururaja e K. Sampreetha. "Development of Commercial Banks during Pre and Post Globalization Era in India: An Analysis". Shanlax International Journal of Arts, Science and Humanities 7, n. 1 (1 luglio 2019): 26–34. http://dx.doi.org/10.34293/sijash.v7i1.371.
Testo completoAbstract (sommario):
Banking is an old business and a central pillar of Indian society. Money lending activities in India had traced back to the Vedic period (according to Central Banking Enquiry Committee-1931). The professional banking system existed long ago- Manu Murthy, Kautilya’s Arthashastra- in India. Initial stage growth of Indian banks was very sluggish and also experienced episodic failure between 1913 and 1948. The banking sector in the pre-reform period was experienced poor performance and caught into deep crisis due to excessive loans in comparison to total deposits having a ratio more than 50 per cent consisting of about 90 per cent of all commercial banks which posed a significant threat to the stability and transparency of the financial system. During those days, the public had lesser confidence in the banks. Government at this juncture decided to introduce comprehensive economic reforms. Environmental and regulatory changes have made this sector more competitive and improved the health of the Indian banking sector. The study's main purpose is to analyse the growth of India scheduled commercial banks during pre and post-globalisation period in three phases viz., a)Early Phase of growth of the CBS: 1936-1969, b) Period of Social Control:1967 -1991 and c)Phase of Globalization:1991-2018. The present study is based on, purely, secondary data.
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Malinowski, Leszek. "Influence of chosen technical constraints on stability of 3D geological model-based schedule in a complex longwall operation". E3S Web of Conferences 123 (2019): 01024. http://dx.doi.org/10.1051/e3sconf/201912301024.
Testo completoAbstract (sommario):
In Polish underground mining digital 3D geological models and mine structure models are becoming popular as an aid in creating design and schedules of mine workings. Article highlights development made in generating and optimizing mining operations. Having created a model it is possible to test schedule scenarios using a number of constraints. One of the constraint limiting coalmines is ventilation, which may be magnified by high content of methane in coal deposits. In this article two methods of introducing ventilation constraints have been presented. One limits number of longwall shearers working simultaneously in excavations ventilated by the shaft. The other limits tonnage of coal which can be extracted in each ventilation zone. Scenarios governed by the second method turned out to result in more stable exploitation than a base scenario. More precise calculations are possible if a model contains an accurate prognosis of methane emissions that would be caused by extraction of the coal deposit. The aim of the paper is to present possibilities of analysing and upgrading mining operations with the help of digital solutions.
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Makawa, Elizabeth. "INTERNET BANKING". INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, n. 05 (21 maggio 2024): 1–5. http://dx.doi.org/10.55041/ijsrem34310.
Testo completoAbstract (sommario):
The paper describes the current state of Internet banking in India and discusses its implications for the Indian banking industry. Particularly, it seeks to examine the impact of Internet banking on banks’ performance and risk. Using information drawn from the survey of 85 scheduled commercial bank’s websites, during the period of June 2007, the results show that nearly 57 percent of the Indian commercial banks are providing transactional Internet banking services. The univariate analysis indicates that Internet banks are larger banks and have better operating efficiency ratios and profitability as compared to non-Internet banks. Internet banks rely more heavily on core deposits for funding than non-Internet banks do. However, the multiple regression results reveal that the profitability and offering of Internet banking does not have any significant association, on the other hand, Internet banking has a significant and negative association with risk profile of the banks. This research work was undertaken to ascertain the impact of Internet banking in Indian banks and evaluation of its effectiveness in the banking system. To put this study on a unique out look I’ve designed together information while personal questionnaires interaction was paid purely to areas of customers and cashiers of Indian bank and review of related literatures to the main themes and sub themes. It was ascertained that Internet banking has helped the banks to attain goals and objectives. KEYWORDS:internet banking, information technology,electronic transfers
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Pedrosa-Soares, Antônio Carlos, Mario Luiz Chaves, Ricardo Scholz e Coralie Dias. "PEG2009 PRE-SYMPOSIUM FIELD TRIP GUIDE: EASTERN BRAZILIAN PEGMATITE PROVINCE (MINAS GERAIS)". Estudos Geológicos 32, n. 2 (13 dicembre 2022): 37–51. http://dx.doi.org/10.51359/1980-8208/estudosgeologicos.v32n2p37-51.
Testo completoAbstract (sommario):
Pegmatite gemstones became officially known in the Brazil history since the last decades of the 17th century, when green tourmalines were found in the central-northeastern Minas Gerais region by Fernão Dias Paes Leme, one of the most famous leaders of Brazilian colonizers. Later, pioneer naturalists and geologists of the 19th century first decades, such as von Eschwege, von Spix & von Martius and Saint-Hilaire, referred to pegmatite gem deposits and/or trading of coloured gems in regions of the Araçuaí, Jequitinhonha, Doce and Mucuri river valleys. However, only in the 20th century, particularly during and after the Second World War, pegmatites became important mineral deposits in Brazil owing to efforts to increase the production of mica, beryl and quartz for the USA military industry. This mining development was accompanied by pioneer geologic studies and several new mineral specimens were discovered. Accordingly, the Brazilian pegmatite populations were grouped into the Eastern, Northern and Southern Brazilian pegmatite provinces. These provinces were defined mainly based on the geographical distribution of pegmatites, because at that time Brazil lacked geological maps even for a regional approach. This guide was elaborated for a pre-symposium field trip held before 2009 PEG - 4th International Symposium on Granitic Pegmatites, and focused on different aspects of pegmatites located in three important districts of the Eastern Brazilian Pegmatite Province (EBPP), namely São José da Safira, Conselheiro Pena and Araçuaí pegmatite districts. The field trip included from primitive garimpos for mineral exploitation to a very organized mine, showing pegmatites with different mineral (beryl, phosphate, spodumene or tourmaline) specializations that are related to distinct geologic settings and genetic conditions. A visit to a quarry for dimension stone on a pegmatite body was also scheduled. This guide also presents a synthesis on the geologic setting of the main EBPP pegmatite districts and their main features, followed by brief descriptions of the field trip stops. Those were the Ipê Pegmatite in Governador Valadares town, Sapucaia Pegmatite in the town of Galileia, Boa Vista and Cigana Pegmatites in the town of Conselheiro Pena, K2 Ornamental Pegmatite Quarry in Itinga town, CBL Spodumene Mine in Araçuaí town, Água Santa Mine and a pegmatite swarm which occurs along a road cut of the BR-342, both located in the town of Coronel Murta.
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Gu, Xiao Wei, Peng Fei Wang, Qing Wang, You Yi Zheng, Jian Ping Liu e Bin Chen. "Simultaneous Optimization of Final Pit and Production Schedule in Open-Pit Coal Mines". Advanced Materials Research 323 (agosto 2011): 222–28. http://dx.doi.org/10.4028/www.scientific.net/amr.323.222.
Testo completoAbstract (sommario):
A dynamic sequencing method has been developed that can simultaneously optimize the final pit and the production schedule of an open-pit coal mine. The method first establishes a geological seam model of a bedded coal deposit which estimates the relevant attributes of coal seams at the center of each block on the X-Y plane. Based on the seam model, a sequence of “geologically optimum final pits” is generated and, in each of these pits, a sequence of “geologically optimum push-backs” is generated. The geologically optimum push-backs are then put into a dynamic programming scheme and the best production schedule which has the highest NPV is obtained for each final pit. After the best production schedules for all the final pits are obtained, the one with the highest overall NPV is the optimum final pit and its associated best schedule is the overall best production schedule.
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Abi-Fadel, Francois, Nisarg R. Desai, Gita Vatandoust, Rabih Said, Aaron Gottesman e Terenig Terjanian. "Monoclonal Gammopathy of Undetermined Significance with Amyloid Deposition in the Lung and Non-Amyloid Eosinophilic Deposition in the Brain: A Case Report". Case Reports in Medicine 2010 (2010): 1–4. http://dx.doi.org/10.1155/2010/406102.
Testo completoAbstract (sommario):
Background. Monoclonal gammopathy of undetermined significance (MGUS) is rarely complicated by amyloidosis.Case. A 66-year-old white male presented to the emergency room (ER) after an unwitnessed fall and change in mental status. Patient was awake and alert but not oriented. There was no focal deficit on neurological exam. Past medical history (PMH) included hypertension, hypercholesterolemia, aortic valve replacement (nonmetallic), incomplete heart block controlled by a pacemaker and IgG- IgA type Monoclonal Gammopathy of Undetermined Significance. The MGUS was diagnosed 9 months ago on serum protein electrophoresis (SPEP) as patient was referred to the outpatient clinic for hyperglobulinemia on routine blood work. In ER, a head-computed tomography (CT) revealed multiple parenchymal hemorrhagic lesions suspicious for metastases. A CT chest, abdomen and pelvis revealed numerous ground-glass and solid nodules in the lungs. Lower extremity duplex and transesophageal echocardiogram were negative. Serial blood cultures and serologies for cryptococcus and histoplasmosis, antineutrophil cytoplasmic antibody (ANCA), antinuclear antibody (ANA), rheumatoid factor (RF), cryoglobulin, and antiglomerular basement membrane (anti-GBM) antibodies were all negative. CT guided lung biopsy was positive for Thioflavin T amyloid deposits. Brain biopsy was positive for eosinophilic material (similar to the lungs) but negative for Thioflavin T stain. The patient's clinical status continued to deteriorate with cold cyanotic fingers developing on day 12 and a health care acquired pneumonia, respiratory failure, and fungemia on day 18. On day 29, family withdrew life support and denied any autopsies.Conclusion. Described is an atypical course of MGUS complicated by amyloidosis of the lung and nonamyloid eosinophilic deposition in the brain. As MGUS might be complicated by diseases such as amyloidosis and multiple myeloma, a scheduled follow-up of these patients is always necessary. Further research is needed in order to better define the optimal treatment and management strategies of MGUS and its complications.
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Morshed Bhuiya, Md Monzur, Md Mahabub Miah e Tasnim Uddin Chowdhury. "The Impact of Credit Risk on the Profitability of Selected Commercial Banks of Bangladesh". Asian Journal of Managerial Science 12, n. 1 (21 marzo 2023): 19–25. http://dx.doi.org/10.51983/ajms-2023.12.1.3438.
Testo completoAbstract (sommario):
The objective of the study is to find out the impact of credit risk on the profitability of selected commercial banks of Bangladesh. To perform this study, we have selected 10 commercial banks from 61 scheduled commercial banks. The selected banks consist of four categories. Among them, three are state owned banks, three are private owned non Islamic banks, three are private owned Islamic banks and one is specialized commercial bank. To show the impact of credit risk on profitability, we have selected ten variables which are calculated using data collected from 2009 to 2018. Among the ten variables, two variables have been used as dependent variables which include Return on Equity (ROE) and Return on Assets (ROA), and among the independent variables include seven bank specific variables and one macroeconomic variable. To find out the result, multiple-regression model has been used and shown the effects of independent variables on ROE & ROA separately. Besides this, an attempt has been made to find out the effect of Basel III on profitability. To show the effect, we have used three years data before Basel III and three years data after Basel III and showed the individual effect on ROE and ROA. The regression result shows that non-performing loan ratio (NPLR), Loan Loss Provision Ratio (LLPR) and macroeconomic variable GDP has a significant negative impact on profitability ratio ROE. The result also shows that Non-performing loan ratio (NPLR), Loan and advance to total deposits ratio (LATD) have a significant impact on profitability ratio Return on Assets(ROA). The regression result for Basel III effect represented that Nonperforming loan has a significant negative impact on Return on Equity (ROE) but this impact is less than that of before Basel III.
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Omedo, Geoffrey, Kariuki Muigua, Richard Mulwa e Robert Kibugi. "Comparing Environmental Financial Guarantee Schemes in Kenya and South Africa". Journal of Sustainable Development 15, n. 2 (21 gennaio 2022): 1. http://dx.doi.org/10.5539/jsd.v15n2p1.
Testo completoAbstract (sommario):
Kenya and South Africa have enacted some laws that inculcate economic incentives schemes as key elements of their environmental regulatory terrain. While Kenya has advanced the use of Environmental Performance Deposits (EPDBs), South Africa has adopted the use of the Financial Provisioning Regulations, applied specifically for the upstream mining sector. This article reviews the use of financial assurance schemes in environmental management and their specific application to the upstream mining sectors in the two countries. The data used in the analysis is from literature review, key informant interviews, interview schedules, and focus group discussions. Results indicate that while the use of financial provisioning is a well-established practice in South Africa, in Kenya only one company has deposited funds to the environmental regulator as a security for good environmental practices. A comparative analysis of the regulatory framing for financial assurance instruments in Kenya and South Africa demonstrates some similarities in terms of requirement for public participation, requirement for periodic review of the bonds, use of the bonds for environmental rehabilitation; and some differences such as requirement for use of cash and/or financial instruments, how to treat the accrued interest from the deposited funds, and how the deposit bond amounts are set. Largely, both countries acknowledge the importance of economic incentives in their environmental management frameworks. The article recommends strengthened regional cooperation to enhance the application of financial assurance in the law for effective environmental management in Africa.
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Peremetchyk, Andrii, Olga Kulikovska, Nataliia Shvaher, Serhii Chukhareva, Serhii Fedorenko, Roland Moraru e Vladko Panayotov. "Predictive geometrization of grade indices of an iron-ore deposit". Mining of Mineral Deposits 16, n. 3 (30 settembre 2022): 67–77. http://dx.doi.org/10.33271/mining16.03.067.
Testo completoAbstract (sommario):
Purposeis development of the methods to predict indices of iron-ore deposits relying upon the improvement of available techniques as well as formulation of new geometrization procedures and identification of the most adequate decision-making way to assess geological data as the basis for geometrization and prediction. Methods are to develop a self-organizing prediction algorithm based upon combination of the available techniques and formulation of new mathematical methods; consider various means to assess them in the context of iron-ore deposit; and select the most efficient one. Use of geostatistical methods makes it possible to evaluate and process output geological information. The methods help assess mineral reserves of a mining enterprise. Findings. Dependencies of magnetite ore content upon geological factors have been derived in the context of an open pit of PIVDGZK JSC. The deposit has been geometrized; predictive mining and geometric model of the deposit site has been deve-loped. Factors have been determined influencing the distribution nature of the indices. Graphs to arrange grade indices of the deposit have been constructed. The graphs have helped predict their placement within the deposit. Originality. A method to predict mining and geological indices of iron-ore deposit has been developed relaying upon a self-organizing algorithm. Correlation between grade indices of minerals and different geological factors has been determined making it possible to describe spatial distribution of grade indices of the deposit. Practical implications. Geometrization methods for iron-ore deposits have been formulated. The methods help schedule mining operations accurately while improving their efficiency. The developed predictive self-organizing algorithm is the flexible tool used for various mining and geological conditions to provide scheduling and assessing of different mining methods. The self-organizing as well as geostatic evaluation techniques is quite a promising research tendency.
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Patel, Krupesh, Maua Moshe, Ernest Amankwah, Leah Holloway e Stacie Stapleton. "IMG-09. DETERMINING OPTIMAL IMAGING SCHEDULE FOR PLGG AND PHGG PATIENTS OFF-THERAPY". Neuro-Oncology 25, Supplement_1 (1 giugno 2023): i48. http://dx.doi.org/10.1093/neuonc/noad073.186.
Testo completoAbstract (sommario):
Abstract To this point there is no standard imaging schedule across all institutions in the surveillance of pediatric low-grade gliomas (pLGG) and pediatric high-grade gliomas (pHGG) after therapy completion. We at our institution use the Children’s Oncology Group (COG) protocols ACNS1831/ACNS1833 to guide our surveillance of pLGG. The MRI schedule is every 3 months for year 1 (after therapy), every 6 months for years 2 and 3, and annually for years 4 and 5. For pHGG we do MRI imaging every 3 months for year 1, every 4 months for year 2, every 6 months for years 3-5, and annually for years 6-10. It is uncertain if this imaging schedule is optimal in terms of tracking tumor evolution post-treatment. pLGG are a diverse group of tumors but generally tend have a slower progression rate when compared to pHGG. Studies have shown a 5-year progression-free survival (PFS) of 45% to 65% for residual tumor of any size for pLGG. 3-year PFS for pHGG at best is 18%. When possible, spacing imaging, decreasing sedations, and decreasing gadolinium-based contrast agents that can deposit in the body are key drivers in imaging schedules. Through retrospective analysis we are establishing if imaging schedules should be adjusted based on disease progression or recurrence.
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Hryhoriev, Yulian, Yurii Monastyrskiy, Oleksandr Plotnikov e Olha Bohomaz. "STUDY OF INTERRELATIONSHIPS BETWEEN MINING SCHEDULE PARAMETERS, DEPOSIT CONFIGURATION AND DEVELOPMENT SYSTEM PARAMETERS UNDER VARIABLE PRICES OF THE MINING CLUSTER PRODUCTS". SCIENTIFIC PAPERS OF DONNTU Series: “The Mining and Geology”, n. 1(31)-2(32) (2024): 39–48. https://doi.org/10.31474/2073-9575-2024-1(31)-2(32)-39-48.
Testo completoAbstract (sommario):
Purpose. The study investigates the impact of the dynamic minimum cutoff grade on the parameters of the open-pit development system for steeply dipping deposits and the optimization of mining schedules under variable market conditions for iron ore products. Methods. The study uses methods of engineering analysis, synthesis, and generalization of information from various literary sources, along with multi-scenario modeling of the mining-geometrical parameters of the deposit. Findings. The analysis of scientific research allowed to formulate theoretical principles and mathematical approaches to the management of the mining operations schedule in the context of dynamic changes in market conditions for the products of mining enterprises. To ensure flexible adaptation of the open-pit production system, it is proposed to apply a dynamic minimum content of the useful component. An analytical justification of the key parameters of the development system – the width of the working platform and the length of the ore front – was performed. Calculations have shown that with the increase in the dynamic minimum content of the useful component, the width of the working area increases, and the length of the ore front decreases due to the reclassification of part of the ore ledges as opencast. Variants of the mining operation schedule depending on the values of the dynamic minimum content of the useful component are modeled. The results obtained can be used to develop a calendar plan for mining operations in changing environmental conditions. Originality. The concept of dynamic minimum content of useful component is proposed as an adaptive tool for operational management of mining operations in conditions of variable market factors. The dependence of the width of the working platform on the interaction between the qualitative indicators of the ore and the angle of slope of the working side is substantiated.. Practical implication. The developed approaches allow to increase the flexibility of the open-pit production system, reduce the costs of forming working areas, and improve the economic efficiency of the open-pit operation in the conditions of changing conditions of the iron ore market. Keywords: dynamic minimum cutoff grade, dynamic external environmental conditions, mining schedule parameters, working bench width, bench slope angle, mining front.
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Hryhoriev, Y., S. Lutsenko, O. Systierov, A. Kuttybayev e A. Kuttybayeva. "Implementation of sustainable development approaches by creating the mining cluster: the case of MPP “Inguletskiy”". IOP Conference Series: Earth and Environmental Science 1254, n. 1 (1 ottobre 2023): 012055. http://dx.doi.org/10.1088/1755-1315/1254/1/012055.
Testo completoAbstract (sommario):
Abstract The article provides the basic foundations of the implementation of sustainable development approaches in the world society and their interpretation in mining activities. The study also analyzes the regulatory framework and organizational mechanisms for the implementation of these principles in the Ukrainian mining industry. An analysis of the current state of rational subsoil use and solid industrial waste management in Ukraine is given. The concept of a mining cluster and prospects for its formation in the region of the Kryvyi Rih iron ore basin are substantiated. An algorithm designed to optimize the schedule of mining operations in the mining cluster is described. The Ingulets iron ore deposit was analyzed from the standpoint of integrated development. The reserves of talc shale extracted from the open-pit and stored in a man-made deposit for further sale are separately allocated. The order of mining works for the development of man-made deposits is given.
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Gaivoronsky, A. I., e M. V. Gorbunov. "Technical and technological solutions for the coal bed methane liquefaction projects". Proceedings of Higher Educational Institutions. Маchine Building, n. 1 (754) (gennaio 2023): 63–75. http://dx.doi.org/10.18698/0536-1044-2023-1-63-75.
Testo completoAbstract (sommario):
The paper presents technological and cost studies aimed at substantiating selection of technical and technological solutions in the coal bed methane liquefaction projects on the example of Naryksko-Ostashkinskoye and Taldinskoye methane-coal deposits in Kuzbass. Required capacity of the coal bed methane liquefaction plant is substantiated taking into account phasing of the capacity commissioning. Results of technological calculation of the preferred cycles of the coal bed methane liquefaction, as well as estimate of the cost of the main technological equipment of the compared options, are presented. It is concluded that it is necessary to adapt the initial deposit development project to the schedule for commissioning capacities of the coal bed methane liquefaction, and that using the SMR cycle is preferable.
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Hryhoriev, Y., S. Lutsenko, A. Kuttybayev, A. Ermekkali e V. Shamrai. "Study of the impact of the open pit productivity on the economic indicators of mining development". IOP Conference Series: Earth and Environmental Science 1254, n. 1 (1 ottobre 2023): 012050. http://dx.doi.org/10.1088/1755-1315/1254/1/012050.
Testo completoAbstract (sommario):
Abstract The article studied the issue of improving the scientific and methodological base in the field of design and planning of open-pit mining by developing new and adjusting existing methods for determining the ore productivity of an open-pit, which should take into account the interconnection between the mining schedule and the productivity of an open-pit for ore, based on the condition for ensuring the standard volume of finished to the extraction of reserves. When choosing the production of an open-pit for ore, it is necessary to take into account the impact of the interconnection between the schedule of mining and production, based on the conditions of regulatory regulation of the volume of mining for the excavation of reserves, on the cost of ore mining and concentrate production. With an increase in ore productivity, the cost of ore mining, as well as the cost of production of concentrate reduction. At the same time, the very possible productivity of the open-pit for especially minerals is achieved, the economic efficiency of the development of deposits is achieved with the chosen direction of the open-pit. A decrease in productivity for a common mineral by 20 and 40% entails a decrease in profit from the development of the deposit by 10 and 20%, respectively. It has been determined that an increase in the slope angle of the working side of the open-pit significantly reduces the economic efficiency of the development of the deposit due to the fact that the operation of the open -pit with a large slope angle entails not only a decrease in the current stripping ratios as a result of an improvement in the mining schedule, but also a decrease in ore productivity, which reduces the present value of marketable products due to an increase in the period of development of the deposit. The results of the studies performed can be used by design organizations and mining enterprises in determining the ore productivity of an open-pit.
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Selvakumar, M., e V. Sathyalakshmi. "Comparison of Financial Consumer Protection of Public Sector Banks and Private Sector Banks: Application of Mann-Whitney Rank Sum U-Test". Asian Journal of Managerial Science 4, n. 2 (5 novembre 2015): 14–20. http://dx.doi.org/10.51983/ajms-2015.4.2.1194.
Testo completoAbstract (sommario):
Financial Consumer Protection improves confidence of depositors in the banking (financial) systems by making sure that they invested (deposited their funds) in products suitable for their risk profile and financial plans. This, in turn, enhances the stability of banks’ deposit base and diminishes the risk of panic and runs on bank deposits. Consumer protection directly contributes to increase efficiency of financial intermediation, transparency of financial products and services, and product innovation driven by consumers’ demand. Effective consumer protection facilitates increased penetration of the financial sector, through improved awareness of financial products and services, consumer’s rights and obligations, and the advantages of life-long financial planning. Therefore, the present study aims to examine the level of financial consumer protection and also compare financial consumer protection of public sector banks and private sector banks. This study covers both primary data and secondary data. Primary data has been collected from the customers of commercial banks using pre-tested interview schedule and the secondary data has been collected from standard books, journals, magazines and websites. The researcher has applied purposive sampling technique to identify the 228 sample respondents of the study. In order to analyze and compare the financial consumer protection, the researcher has used the Percentage Analysis and Mann-Whitney Rank Sum U-Test. This study reveals that there is no significant difference between the level of financial consumer protection of public sector commercial banks and the level of financial consumer protection of private sector commercial banks.
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Ermolovich, Elena A., Alexander L. Ivannikov, Marat M. Khayrutdinov, Cheynesh B. Kongar-Syuryun e Yulia S. Tyulyaeva. "Creation of a Nanomodified Backfill Based on the Waste from Enrichment of Water-Soluble Ores". Materials 15, n. 10 (21 maggio 2022): 3689. http://dx.doi.org/10.3390/ma15103689.
Testo completoAbstract (sommario):
The paper analyzes losses during the development of low-value water-soluble ore deposits. The importance of development systems with backfill is shown. The use of industrial wastes of water-soluble ores to replace specially produced inert components in the preparation of backfill seems to be a good way to utilize them. The aim of the work was to create a fill mass with improved strength properties based on industrial wastes of water-soluble ores activated with a nanomodifying material. The characteristics (chemical and granulometric compositions) of an aggregate of the backfill based on the waste from enrichment of water-soluble ores are given. The validation of the hardening mixture compositions for various mining systems was carried out considering: the specified strength, the time of the artificial mass erection, the time to achieve the required strength properties of the material, which determine the possible intensity of the mining operations; method of transporting the backfill. The expediency of using a multilayer fulleroid nanomodifier astralene as a nanomodifying additive has been proved. The effect of the backfill activation with a nanomodifying additive, astralene, on the structural changes of halite wastes from the halurgic enrichment of water-soluble ores (potash) was investigated. To study the strength properties of the fill mass, the comparative analytical method was used. The strength properties of the backfill were measured in standard test periods, taking into account the intensity of hardening of the backfill material (after 7, 14, 28, 60, 90 days). To obtain reliable results, 10 backfill samples were tested at each of the scheduled dates. The shape and chemical composition of crystalline new forms were studied. Studies were performed using X-ray phase analysis and scanning electron microscopy. As a result of uniaxial compression of hardening backfill samples, the dependence of the ultimate strength on the astralene content and the hardening time were established. It has been experimentally proved that the use of a nanomodifying additive, astralene, in the backfill allows an increase in the strength properties of the created artificial mass by 1.76–2.36 times while reducing binder consumption.
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Sreenivasan, Prem K., e Kakarla V. V. Prasad. "Distribution of dental plaque and gingivitis within the dental arches". Journal of International Medical Research 45, n. 5 (10 agosto 2017): 1585–96. http://dx.doi.org/10.1177/0300060517705476.
Testo completoAbstract (sommario):
Objective The natural accumulation of supragingival plaque on surfaces of human teeth is associated with gingival inflammation and the initiation of common oral diseases. This study evaluated the distribution of dental plaque and gingivitis scores within the dental arches after prophylaxis. Methods Adult subjects from the Dharwad, India area representing the general population who provided written informed consent were scheduled for screening. Healthy subjects over the age of 18 years, not currently requiring any medical or dental care, and presenting with a complement of at least 20 natural teeth were recruited for this parallel design study. Enrolled subjects (n = 41) underwent oral examinations for dental plaque (PI) and gingivitis (GI) using the Turesky modification of the Quigley-Hein and the Löe-Silness Index, respectively, at the baseline visit, followed by a whole mouth dental prophylaxis. Subjects were given fluoride toothpaste for twice daily oral hygiene for the next 30 days. Subjects were recalled on days 15 and 30 for PI and GI examinations identical to baseline. Results Analyses indicated that mean scores for PI and GI on either arch and the whole mouth were higher than 2 and 1, respectively, during all examinations. Anterior surfaces consistently exhibited lower PI scores than posterior regions of either arch, or the entire dentition. Regional GI differences within the dentition were similar to PI scores, with lower scores on anterior than posterior teeth. Prophylaxis reduced both the frequency and mean scores of both PI and GI, irrespective of arch, with lower scores observed on anterior than posterior regions during all recall visits. Molar and lingual regions consistently exhibited higher PI and GI scores compared with anterior surfaces. At all examinations, mean scores for both plaque and gingivitis were higher on approximal vestibular than mid-vestibular surfaces. Conclusions Differences observed in PI and GI within the dentition have several practical implications: (a) there are advantages of whole mouth assessments for oral health (b) a need for oral hygiene formulations to reduce the larger deposits of dental plaque in the posterior region and resultant gingival inflammation, and (c) a requirement for ongoing oral hygiene education.
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Hidayat, Rizal, Taqiyuddin Ibnu Syafii, Sukri Agustian e Mufthi Alam. "School Management Develop Students' Cognitive Ability Through The Tahfidz Program". Journal of Islamic Education and Ethics 1, n. 2 (19 agosto 2023): 125–30. http://dx.doi.org/10.18196/jiee.v1i2.12.
Testo completoAbstract (sommario):
This study aims to understand how school management develops students' cognitive abilities through the Tahfidz program to determine how schools provide students with memorizing strategies. So they feel comfortable and not pressured into memorizing. This study uses field research by using a qualitative Exploration method. Data collection was carried out by focused observation, semi-structured interviews, and documentation, and lastly, data analysis was carried out. The results of this study are that the implementation of tahfidz activities is carried out based on the tahfidz class schedule in each class but is separated between junior high and high school. For junior high school classes, accompanied and directly controlled by ustadz Imam Hasanuddin. The memorization deposit will be listened to now by him for students who want to repeat murojaah before being deposited. High school students are more free to deposit memorization with anyone, both classmates and seniors, provided that the reciter has more memorization or has completed 30 juz of memorization.
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Panchenko, Valerii. "Openwork scheduling for steep-grade iron-ore deposits with the help of near-vertical layers". Mining of Mineral Deposits 15, n. 1 (2021): 87–95. http://dx.doi.org/10.33271/mining15.01.087.
Testo completoAbstract (sommario):
Purpose is to develop efficient scheduling to excavate steep-grade iron-ore deposits using near-vertical layers relying upon production practices by an open pit of Poltava Mining-and-Processing Integrated Works (MPIW). Methods. The goal achievement involved system analysis of openwork scheduling for steep-grade iron-ore deposits by means of near-vertical layers in an open pit of Poltava MPIW; the scheduling process was structured from the viewpoint of decision-making under uncertainty. Findings. New scheduling methods to excavate steep-grade iron-ore deposits by means of near-vertical layers have been developed. The methods have been represented in the informal (descriptive) structure being mandatory for further transition to formalization of certain stages of technological decision-making during scheduling. To improve the scheduling efficiency, it is recommended to prepare initial process data using K-MINE software; Deswik software is recommended to determine economic indices as well as pit outlines. Originality.For the first time ever, a new mechanism of expedient spatiotemporal control of the specific excavation volumes while varying both “starting” time and intensity of a layer mining has been identified for the traditional openwork. The mechanism makes it possible to implement piecewise stable dynamics of annual output. Moreover, it also helps solve inverse problem, i.e. determine target values of spatiotemporal controlled parameters (i.e. “starting” time and intensity of the layer mining) for the required dynamics of ore and overburden excavation amounts. Practical implications. The proposed methods concerning scheduling steep-grade iron-ore deposit mining using near-vertical layers relying upon production practices by an open pit of Poltava MPIW have been tested successfully. Their efficiency has been proved. Currently, they are the key procedures being applied to schedule extraction using near-vertical layers in the context of the considered open pit. Keywords: iron-ore deposits, openwork, steep-grade layers, scheduling
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Nyaga, Majory. "Moderating Effect of Central Bank of Kenya Regulations Compliance on the Relationship Between Predatory Loan Practices and Loan Performance Among Commercial Banks in Kenya". International Journal of Economics, Business and Management Research 08, n. 10 (2024): 165–81. http://dx.doi.org/10.51505/ijebmr.2024.81012.
Testo completoAbstract (sommario):
Commercial banks in Kenya play a vital role in the country's financial system. In 2023, Commercial banks contributed approximately 6.6% to Kenya's GDP. They perform a wide range of functions essential to the economy, such as accepting deposits, advancement of loans, payment and settlement services, safekeeping or custodian services, foreign exchange services, and financial advisory services, among others but the most critical function of commercial banks is acting as intermediaries between savers and borrowers, mobilizing savings from individuals and institutions and channelling these funds into productive investments by lending to businesses, governments, and consumers. The primary source of income for commercial banks is interest from performing loans. Non-performing loans arise when the borrowers fail to make the scheduled payments of principal and interest within the agreed time, usually for 90 days. Recent statistics by CBK indicate that the Kenya commercial banks’ gross non-performing loans rose to Kes 630 billion by April 2024, translating to a rise in the ratio of NPLs to Gross Loans from 14.8% in December 2023 to 16.15% by April 2024. The objective of this study was to analyze the moderating effect of Central Bank of Kenya regulations compliance on the relationship between predatory loan practices and loan performance among commercial banks in Kenya. The study applied a post-positivism research philosophy and a mixed research design. The sampling frame and unit of analysis was a list of the 39 solvent commercial banks in Kenya (CBK, 2023). The unit of response was a list of 234 managers of the 39 solvent commercial banks. A closedended questionnaire was used to collect primary data for the predictor and predict and. For triangulation, a secondary data collection sheet was used to collect secondary data for the regress and. The stability and construct validity of instrumentation was assessed using the Cronbach alpha coefficient and Kaiser-Meyer-Olkin coefficients, respectively, using data from managers of the three largest Micro Finance Banks in Kenya and based in Nairobi. After testing the data for Gaussian distribution, linearity, and independence, simple linear regression was used for inferential analysis. The study found a positive but not statistically significant influence of central bank regulations compliance on the relationship between predatory loan practices and loan performance among commercial banks in Kenya. The moderated model explained an additional 0.3% in the variations of loan performance from the un-moderated model of 58.3% to 58.8% after moderation.
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Afum, Bright Oppong. "Resource Extraction Evaluation Using a Mathematical Programming Framework for Surface-Underground Mining Options and Transitions Optimization". Journal of Mineral and Material Science (JMMS) 5, n. 2 (8 aprile 2024): 1–15. http://dx.doi.org/10.54026/jmms/1083.
Testo completoAbstract (sommario):
A mathematical programming framework based on Mixed Integer Linear Programming (MILP) model for surfaceunderground mining options and transition optimization for resource extraction is presented in this paper. Existing models are mainly based on a stepwise optimization approach with limited constraints which produces localized optimal solutions and are often impractical. For mineral deposits amenable to both surface and underground mining options, the MILP framework determines the most suitable mining option and associated schedule to exploit the orebody. The MILP formulation is tested and implemented on a gold deposit case study. The NPV of the optimal mining option ($ 2.515 billion) is sensitive to the gold price, ore quantity delivered from the underground mine, and delay factor associated in supporting the operational development and stopes. Positive changes in the delay factors associated with operational development support and mining stope support have more impact on the NPV than negative changes. However, the NPV is highly sensitive to the mining stope support delay than the operational development support delay
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Coiffier, Bertrand, Franck Morschhauser, Jehan Dupuis, Corinne Haioun, Fabrice Laine, Roch Houot, Herve Tilly et al. "Phase I study cohort evaluating an optimized administration schedule of SAR3419, an anti-CD19 DM4-loaded antibody drug conjugate (ADC), in patients (pts) with CD19 positive relapsed/refractory b-cell non-Hodgkin’s lymphoma (NCT00796731)." Journal of Clinical Oncology 30, n. 15_suppl (20 maggio 2012): 8057. http://dx.doi.org/10.1200/jco.2012.30.15_suppl.8057.
Testo completoAbstract (sommario):
8057 Background: The recommended dose (RD) of SAR3419 administered intravenously every 3 weeks (q3w) for 6 cycles is 160 mg/m2 and is 55 mg/m2 when administered weekly (q1w) for 8-12 doses. Reversible corneal deposits were dose limiting (DLT) in the q3w schedule. The q1w schedule was well tolerated and active. However, based on the occurrence of late/cumulative adverse events (AE) at the RD supported by pharmacokinetic (PK) analyses showing ADC plasma accumulation after 4 weekly doses, an optimized schedule consisting of 4 weekly doses followed by 4 bi-weekly doses at the RD was tested. Methods: The q1w study was extended to treat 25 pts with the optimized schedule for 8 to 12 doses. Results: Twenty-one pts were evaluable. Main histologies were diffuse large B-cell (DLBCL) (9; 43%) and follicular (6; 29%). Median number of prior regimens was 2 [1-8], 6 pts received prior autologous transplantation and 95% of pts were Ann Arbor stage III-IV at study entry. Median number of doses received was 8 as planned with a median relative dose intensity of 1.0 [0.8-1.0]. Most frequent AEs were asthenia (1 pt with grade 3) and gastrointestinal disorders in 7 pts each. No AE fulfilled the defined DLT criteria. Reversible grade 1 blurred vision/corneal event occurred in 1 pt. Grade 3-4 haematological toxicities were minor consisting of non complicated neutropenia in 4 pts, thrombocytopenia in 2 pts and anemia in 1 pt with no transfusion support. Six (29%) pts, among them 3 with DLBCL, achieved an objective response including 3 CRu (1 in a pt refractory to last regimen). In addition, 9 (43%) pts had stable disease. Response duration was [8-35+] weeks, 5 pts still responding at the cut-off date. Conclusions: The optimized administration schedule shows an improved safety profile compared to prior tested schedules. The clinical efficacy is preserved essentially in aggressive lymphoma. The optimized schedule is being assessed in 2 phase II studies evaluating SAR3419 either as a single agent or in combination with rituximab in pts with DLBCL histology.
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Tarwichatul Jadidah, Parmujianto e Ahmad Kawakip. "Evaluasi Program Tahfidz Alqur’an Pondok Pesantren Sabilillah Pasuruan". EduInovasi: Journal of Basic Educational Studies 5, n. 1 (4 gennaio 2025): 415–25. https://doi.org/10.47467/edu.v5i1.6478.
Testo completoAbstract (sommario):
Evaluation is an assessment process that compares the achievement of a program in the field with the standards that have been formulated. Studying the Qur'an, especially when memorizing the Qur'an, must use the right and clear method, and the most common among Quran memorizers is to use the talaqqi method. The purpose of the evaluation of the tahfidz program at the Sabilillah boarding school is to make improvements for the sustainability of the program. The method used in this study is a qualitative method. This research was conducted by collecting descriptive data and then analyzed qualitatively. The data collection method used is observation techniques and literature study. In the observation of researchers, this tahfidz program has obstacles that have an impact on the sustainability of student activities during memorization deposits. Researchers found indications in the form of no students who have successfully completed the memorization of 30 juz even though this program has been running for four and a half years. The evaluation used by the researcher is a type of comprehensive program evaluation that uses the CIPPO Evaluation Model. Regarding the many problems arising from the context and program of tahfidz deposits, further programs have been prepared, namely; Providing a routine schedule of "Mandatory Nderes", adding deposit allocations, checking the ability of students in the smooth reading of the Qur'an and the accuracy of the pronunciation of makharijul khuruf which is carried out every week.
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de Carvalho, Joao, e Roussos Dimitrakopoulos. "Effects of High-Order Simulations on the Simultaneous Stochastic Optimization of Mining Complexes". Minerals 9, n. 4 (31 marzo 2019): 210. http://dx.doi.org/10.3390/min9040210.
Testo completoAbstract (sommario):
A mining complex is composed of mines, mineral processing streams, stockpiles, and waste facilities, which culminate with generated products that are delivered to customers. The supply uncertainty and variability of materials extracted from the mines, which flow through a mining complex to generate products, can be quantified through geostatistical simulations and can be used as inputs to the simultaneous optimization of mining complexes. A critical aspect to consider is that mineral deposits are characterized by spatially complex, non-Gaussian geological properties and multiple-point connectivity of high-grades, features that are not captured by conventional second-order simulation methods. This paper investigates the benefits of simultaneously optimizing a mining complex where the simulations of the mineral deposit are generated by a high-order, direct-block simulation approach. The optimized life-of-mine (LOM) production schedule is compared to a case in which the same setting is optimized by having the related simulations generated using a second-order simulation method. The comparison shows that the incorporation of simulations that reproduce the spatial connectivity of high-grades results in a more informed LOM production schedule. The sequence of extraction is driven by the spatial connectivity of high-grades, resulting in a mill throughput with better material quality and reduced waste extraction. Furthermore, the discounted cash-flow increases by more than 5% as compared to the case in which the second-order simulations are used.