4,304 results on '"*AMALGAMATION"'
Search Results
2. Equipping Disciplers (Part 2): Equippers' Role in Victorian Baptist Churches.
- Author
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Botross, Peter
- Subjects
CHURCH buildings ,ADULT education ,SAINTS ,AMALGAMATION - Abstract
Part 2 of 2. This series of articles seeks to present a coherent pedagogical framework for equipping disciplers in local congregations. Part 2 examines the role of equippers—those entrusted with preparing disciplers within local churches. Although gifted leaders are assigned the role of equipping the saints, there appears to be a discernible deficiency in their pedagogic methodologies, rendering them less efficacious in fulfilling their responsibilities. This article advocates for an intricate role definition for these equippers, predicated on an amalgamation of biblical and pedagogical foundations. This study was conducted within the delimited context of Baptist churches in Victoria, Australia. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Equipping Disciplers (Part 1): A Pedagogical Framework for Equipping the Whole Person.
- Author
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Botross, Peter
- Subjects
RELIGIOUS gatherings ,CHURCH buildings ,ADULT education ,AMALGAMATION - Abstract
Part 1 of 2: This series of articles seeks to present a coherent pedagogical framework for equipping disciplers in local congregations. Shortcomings in the equipping ministry may be attributable to churches' pedagogical paradigms. Part 1 critically navigates through four divergent pedagogical ideologies—scholar academic, social efficiency, learner centered, and social reconstruction—examining their implications for a holistic approach to equipping. The article concludes with practical implications for equipping disciplers in local congregations. This study was conducted within the context of Baptist churches in Victoria, Australia. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
4. How administrative degradation affects middle-sized cities: lessons from Poland's 1998 regional reform.
- Author
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Cieślak, Borys, Nagler, Paula, and van Oort, Frank
- Subjects
REGIONAL economic disparities ,CITIES & towns ,SOCIOECONOMICS ,SOCIAL status - Abstract
Among Polish cities facing socioeconomic difficulties are the former regional capitals which lost their administrative status due to the 1998 reform, reducing the number of regions. Making use of this quasi-experimental setting, we assess the impact of the loss of administrative status on the affected cities with difference-in-differences estimations. Our findings show the negative impact of the regional amalgamation on economic and, to a lesser extent, on other dimensions of local development. We identify the reform's contribution to the growing disparity between the second-tier and the largest cities and reflect on the design of place-based compensatory measures. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Conditional support from below? Understanding the dynamics of municipal amalgamation preferences among local politicians.
- Author
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Myksvoll, Thomas
- Subjects
ADMINISTRATIVE reform ,CITIZENS ,LOCAL government ,MUNICIPAL government ,AVERSION - Abstract
Municipal amalgamations are commonly undertaken with promises of scale effects. But territorial reforms also invoke issues of local identity and democracy, which may be negatively impacted by upscaled local government. This article explores how these frames play out as drivers of amalgamation preferences among local representatives. Utilizing survey data of Norwegian local politicians during the 2014–2020 Local Government Reform, this article shows that local politicians are more likely to support amalgamation when prioritizing and supporting functional scale considerations. Conversely, they are less likely to support amalgamation when invoking issues of local belonging, democracy, and citizens' influence. But these attitudes are not static. Sources of support and aversion towards amalgamation are at times conditional; the characteristics of the municipality, the individual's status in the local political environment, and the views of the population may both enhance and weaken the degree to which functional or communitarian frames are rallied to support or oppose amalgamation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. Effect of Precambrian basement structure on heat flow distribution in Eastern Arabia.
- Author
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Karg, Harald, Paton, Douglas, Salem, Ahmed, Alahmed, Asma, and Alraddadi, Abdullah
- Abstract
A new model of the thermal structure of the easternmost portion of the Arabian continental crust is presented. Detailed heat flow models based on more than 660 temperature measurements from 230 exploration wells have been performed over an area of 166,000 km2 in size, spanning from the Arabian Gulf to the Eastern Arabian Shield. Geothermal gradients exhibit an increase from 22 ºC/km on the Arabian Platform, to 35 ºC/km in the Faydah-Jafurah Basin. Related surface heat flow (SHF) increases in the same direction from 44 to 72 mW/m2. Heat flow analysis reveals that the radiogenic heat contribution to the total surface heat flux accounts for up to 58%, and the Moho heat flux for 42%, accordingly. From thermal modeling constraints, i.e., matching borehole temperature data and resulting heat flow distribution, it can be inferred that the crust underneath the easternmost Arabian Platform (east of En Nala terrane suture) is significantly more felsic (~ 2.5 µW/m3) than the central Arabian Platform and Arabian Shield (~ 0.9 µW/m3). This is supported by deep wells intersecting rocks of granitoid composition east of the Arabian Shield. Reconstructions of lithosphere geotherms has revealed Moho temperatures around 850–900 °C. Moho heat flow is in the order of 26 mW/m2. Thermal modeling revealed a spatial relationship between regional surface heat flow distribution, crustal structure and the extension and composition of basement terranes. The study demonstrates that the Proterozoic crustal configuration has an impact on the Phanerozoic thermal evolution and its subsidence pattern. Modeled temperature (C) at the top of the basement. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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7. Assessment of Gold and Mercury Losses in an Artisanal Gold Mining Site in Nigeria and Its Implication on the Local Economy and the Environment.
- Author
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Anene, Nnamdi C., Dangulbi, Bashir M., and Veiga, Marcello M.
- Subjects
- *
GOLD mining , *POLLUTANTS , *FIRE assay , *AMALGAMATION , *PARTICULATE matter , *MERCURY - Abstract
The objective of this work was to establish the gold and mercury losses in an artisanal mining deposit (Uke) in Nigeria to convince miners about their inefficiency and suggest changes in their gold extraction practices. Samples of feeds and tailings from five sluice box concentration processes previously ground in hammer mills below 1 mm (P80 = 0.5 mm) were systematically sampled every 15 min. for 4 h and sent for gold analyses by a fire assay and intensive cyanidation. Dry grain size analyses of primary and amalgamation tailings allowed us to find out in which size fraction gold and mercury are lost. Total mercury losses in sixteen operations were obtained by weighing mercury at the beginning and in all steps of the concentrates' amalgamation. After analyses, the average gold grade in the feed resulted in 3.80 ± 1.52 ppm (two standard deviations). The gold recovery was 29.24 ± 13.24%, which is low due to a lack of liberation of the fine gold particles from the gangue (silicates). Finer grinding would be necessary. The mercury balance revealed that 42% of the mercury added is lost, in which 26% involves tailings and 16% evaporated. The HgLost-to-AuProduced ratio was found to be 3.35 ± 9.46, which is exceedingly high for this type of amalgamation process that should have this ratio around 1. One reason is the excessive amount of mercury in the amalgams, 76.5 ± 38.12%, when the normal is around 40%–50%. Mercury lost by evaporation in open bonfires is clearly contaminating amalgamation operators (usually children), neighbours, and the environment. The Hg-contaminated tailings and primary tailings are sold to local cyanidation plants, and this can form toxic soluble Hg(CN)2 in the process. The results of this research were brought to the attention of the miners and other stakeholders, including the regulatory agencies of the government. The % gold recovery by amalgamation was not established in this study, but if this process recovers 50 to 60% of the liberated gold particles in a concentrate and 30% of gold was recovered in the sluice boxes, then the total gold recovery should be between 15 and 20; i.e., 80 to 85% of gold mined is lost. On average, an operation produces 8.26 g of gold/month, which is split to six miners, representing USD 69/month/miner or USD 2.3/day. It was discussed with miners, authorities, and community members (in particular female miners) how to avoid exposure to mercury, how to improve gold recovery without mercury, and the health and environmental effects of this pollutant. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
8. Recover then aggregate: unified cross-modal deep clustering with global structural information for single-cell data.
- Author
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Wang, Ziyi, Luo, Peng, Xiao, Mingming, Wang, Boyang, Liu, Tianyu, and Sun, Xiangyu
- Subjects
- *
LAPLACIAN matrices , *DATA augmentation , *DATA recovery , *TUMOR microenvironment , *GENE expression - Abstract
Single-cell cross-modal joint clustering has been extensively utilized to investigate the tumor microenvironment. Although numerous approaches have been suggested, accurate clustering remains the main challenge. First, the gene expression matrix frequently contains numerous missing values due to measurement limitations. The majority of existing clustering methods treat it as a typical multi-modal dataset without further processing. Few methods conduct recovery before clustering and do not sufficiently engage with the underlying research, leading to suboptimal outcomes. Additionally, the existing cross-modal information fusion strategy does not ensure consistency of representations across different modes, potentially leading to the integration of conflicting information, which could degrade performance. To address these challenges, we propose the 'Recover then Aggregate' strategy and introduce the Unified Cross-Modal Deep Clustering model. Specifically, we have developed a data augmentation technique based on neighborhood similarity, iteratively imposing rank constraints on the Laplacian matrix, thus updating the similarity matrix and recovering dropout events. Concurrently, we integrate cross-modal features and employ contrastive learning to align modality-specific representations with consistent ones, enhancing the effective integration of diverse modal information. Comprehensive experiments on five real-world multi-modal datasets have demonstrated this method's superior effectiveness in single-cell clustering tasks. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
9. The Price of Losing Autonomy: Assessing the Economic Impact of County-to-District Mergers in China.
- Author
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He, Jianzi
- Subjects
- *
AUTONOMY (Economics) , *MERGERS & acquisitions , *URBAN growth , *ECONOMIC impact , *POWER (Social sciences) - Abstract
Amalgamations in democratic settings often result in disadvantages for small and peripheral units, as their political power diminishes in the merged jurisdictions. This article extends the discussion to China by assessing the economic outcomes of county-level units after their conversion into districts directly controlled by city authorities. Leveraging a large county-year panel dataset and employing an advanced causal effect estimator, my analysis reveals a generally less optimistic outlook for these county-turned districts following the mergers. The negative impacts are initially evident in microeconomic indicators, especially in resident deposits, and later materialize in the long-term trajectories of macroeconomic indicators. Furthermore, heterogeneous analysis and a comparative case study in Hangzhou city link the problem to the loss of administrative autonomy. Notably, the negative impacts are less likely to manifest in county-turned districts that are under provincial protection and therefore maintain a certain degree of administrative autonomy after the mergers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
10. Impact of regulatory and other changes on Australian unions' strategies and campaigns, 2023–2024.
- Author
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Jerrard, Marjorie, Bamber, Greg J, and McKeown, Tui
- Abstract
This article reviews the challenges and opportunities facing Australian trade unions in 2023–2024. It covers industry challenges for specific unions and the changes introduced by the Federal Labor Government through its Closing the Loopholes Amendments to the Fair Work Act. It argues that the Australian Council of Trade Unions (ACTU) and individual unions need to take the opportunity provided by the Federal Government's legal changes to make gains for members so that they are difficult to overturn if the federal government changes. It analyses campaigns and strategies of unions around challenges specific to them: for example, the recruitment of gig workers by the Transport Workers' Union and campaigns by the ACTU and the Media and Entertainment Arts Alliance around inappropriate use of artificial intelligence by employers seeking to replace workers and usurp employees' ownership rights to their work. It considers amalgamations (mergers) and disamalgamations (demergers) of concern for some unions. It discusses allegations of inappropriate behaviour facing the Construction and General Division of the Construction, Forestry and Maritime Employees' Union leading to its forced administration as a concern and possible impediment for the entire union movement if not resolved effectively. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
11. Head movement from non-complements: Evidence from Aleut.
- Author
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Snigaroff, M. K.
- Subjects
NOMINALS (Grammar) ,ADJECTIVES (Grammar) ,VERBS ,SUFFIXES & prefixes (Grammar) ,MORPHOLOGY - Abstract
The nature of head movement has been debated since its discovery (see Dékány 2018 for discussion). While it is generally agreed that head movement (the sort that results in the formation of complex heads) is subject to more stringent locality restrictions than phrasal movement, little else is uncontested. In this article, I will argue that a flexible (but literal) interpretation of Harizanov and Gribanova's (2019) definition of head movement (more specifically, their "amalgamation") is needed to account for the movement of suffixal adjectives (As) in Aleut. These As typically suffix to nominals, but under certain conditions surface in verbs between the root and agreement morphology. I show that these As base-generate as adjuncts of NPs and undergo head movement into the verbal complex. I then explore two theories of word-building which would require only phrasal movement on the part of suffixal As—based on ideas put forth in Julien (2002) and Compton and Pittman (2010)—and conclude that phrasal movement alone is too unrestricted to account for the phenomenon, overgenerating As in unacceptable sites. In contrast, previous theories of head movement are too restrictive, only permitting a head and the head of its complement to form a complex head (e.g., Travis 1984; Embick and Noyer 2001); this excludes heads in adjunct positions, like suffixal As, from participating. However, Harizanov and Gribanova's definition of amalgamation, whereby heads Raise or Lower into the nearest c-commanding or c-commanded head, uniquely allows head movement to occur out of specifier positions and even adjunct positions. This comparative flexibility correctly permits Aleut suffixal As to form a complex head with verbal morphology, explaining their incorporation deep within the structure of the verbal complex. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
12. "Top-down" local government mergers: Political and institutional factors facilitating radical amalgamation reforms.
- Author
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Callanan, Mark, Houlberg, Kurt, Raudla, Ringa, and Teles, Filipe
- Subjects
LOCAL government ,LAND consolidation ,CITIES & towns ,MONOPOLIES ,REFORMS - Abstract
Why are some countries able to go ahead with comprehensive top-down local government amalgamation reforms, despite the many challenges such a reform entails? So far, we have limited theoretical and empirical understanding of how central governments manage to adopt such reforms. Drawing on different theoretical frameworks around public policy as well as research into territorial reforms, this article presents key political and institutional factors that are likely to facilitate top-down municipal mergers and examines whether these theoretical propositions help to explain the adoption of comprehensive top-down municipal amalgamation in four cases: Denmark, Estonia, Ireland, and Portugal. Key political and institutional factors identified in existing frameworks provide a useful starting point for understanding and explaining top-down comprehensive municipal amalgamation reforms, such as the role played by the breaking up of existing policy monopolies and emergence of new venues for discussing the reform. At the same time, the cases also reveal some important nuances that at times run counter to theoretical expectations. Our cases also reveal further factors, including the "bundling" of amalgamation reforms with other wider initiatives, and the potential effect of "distracting events" that should be taken into account in the further development of theoretical frameworks concerning top-down amalgamations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
13. Do Managers Make Use of Increased Autonomy? Evidence from Large Scale Organizational Reform.
- Author
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Blom-Hansen, Jens, Serritzlew, Søren, and Villadsen, Anders Ryom
- Subjects
NEW public management ,SCHOOL autonomy ,ORGANIZATIONAL performance ,PUBLIC sector ,PERFORMANCE management - Abstract
The question of what is the right amount of managerial autonomy has been widely debated. The new public management movement argues that increased autonomy will be used by managers to improve organizational performance. Skeptics argue that managers in the public sector are likely to shy away from using increased autonomy. To bring the literature forward we theorize the link between reforms awarding managers increased autonomy and subsequent organizational performance outcomes. We identify four steps in this causal chain, which are easily conflated. We demonstrate empirically the potential of focusing on the intermediary mechanisms of increasing managerial autonomy. A large-scale municipal amalgamation reform in Denmark provides a unique opportunity to study the immediate impacts of changes in managerial autonomy in public schools. The results indicate that granting public managers more freedom has intermediary effects on factors such as hiring patterns and organizational demographics. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
14. Busoga states amalgamation and ethnic formation, Uganda Protectorate, 1900 to 1950.
- Author
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Musamba, William and Byaruhanga Rukooko, Archangel
- Subjects
AMALGAMATION ,IMPERIALISM ,ETHNICITY ,SOGA (African people) - Abstract
Contrary to the common perception of colonialism as an exercise of power within the context of 'divide and rule', this study foregrounds Ali Mazrui's concept of 'unite and rule' as another fundamental aspect of British colonial policy in East Africa. Unable to implement indirect rule in the multifarious Busoga states, the British colonialists were compelled to adopt the policy of unprecedented amalgamations, thereby creating a single ethnic identity at the beginning of the twentieth century. Overtime, Busoga came to be perceived as a territory of the Basoga: one of the major ethnic groups in modern Uganda. The rise of the Abataka Associations as opposition groups to the politics of states amalgamation enhanced the Basoga ethnic identity. However, the transition from the pre-colonial independent states to a single Basoga ethnic identity is hardly historicised in previous scholarship. This qualitative study therefore uses primary sources of archival materials in the Uganda National Archives and Jinja District Archives and five key informant interviews to historicise the primacy of agency in the process of Busoga ethnic formation between 1900 and 1950. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
15. Tectonic Anatomy Reveals the Chinese Altai‐Kuerti‐Dulate Arc Amalgamation in the Southern Altaids.
- Author
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Gan, Jingmin, Xiao, Wenjiao, Mao, Qigui, Wang, Hao, Sang, Miao, Tan, Zhou, Li, Rui, Ao, Songjian, Song, Dongfang, and Zhang, Zhiyong
- Subjects
PLATE tectonics ,AMALGAMATION ,OCEAN - Abstract
The Erqis tectonic belt, situated at the junction of the Chinese Altai‐East Junggar, originated through the subduction of the Ob‐Zaisan Ocean, playing a pivotal role in unraveling the tectonic evolution of the southern Altaids. Tectonic and provenance analyses discern three distinct arcs: the Chinese Altai in the north exhibits a protracted history from the late Cambrian to early Permian with a slender accretionary complex (AC) termed the Supute AC; the Kuerti intra‐oceanic arc in the middle emerged during the Silurian to Devonian coevally with a minor AC known as the Tesibahan AC; and the Dulate arc in the south predominantly evolved from the Middle Devonian to Permian, giving rise to the Fuyun AC that independently developed on its northern margin at least until ∼273 Ma. Our findings indicate the existence of multiple arcs within the Ob‐Zaisan Ocean, forming an archipelago paleogeography in the Paleo‐Asian Ocean. Provenance studies lead us to propose that cryptic sutures demarcating the Chinese Altai, Kuerti, and Dulate lie approximately along the Kuerti and Tesibahan faults, respectively, and that the oceanic branches between these arcs subducted northward beneath the Chinese Altai and Kuerti arcs and southward beneath the Dulate arc. Additionally, our work demonstrates the closure of the Ob‐Zaisan Ocean most probably postdates ∼273 Ma. Combining our data with previous research, we present a novel tectonic evolution model, elucidating several arc amalgamations with multiple subduction polarities between Chinese Altai and East Junggar throughout the late Cambrian to Permian. Key Points: The Erqis tectonic belt predominantly comprises accretionary complex and slices of arcsThe cryptic suture between Chinese Altai and East Junggar extends along the Tesibahan‐Mayine'bo faults rather than the Erqis faultThe Ob‐Zaisan Ocean had subducted southward beneath the East Junggar and closed later than the Permian [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
16. The effect of cow manure amendment and the ratio of gold mine tailings on sweet potato gold phytomining.
- Author
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Noviardi, Rhazista, Joy, Benny, Sudirja, Rija, Setiawati, Mieke Rochimi, Djuwansah, Muhamad R., Karuniawan, Agung, Sofyan, Emma Trinurani, and Suryatmana, Pujawati
- Subjects
GOLD mining ,AMALGAMATION ,GOLD ores ,SWEET potatoes ,BIOMASS - Abstract
Artisanal and small-scale gold mining has commonly used the mercury amalgamation method for gold ore extraction. The processing waste or tailings often contain gold and other metals. This study examined the effects of cow manure amendment and the ratio of gold mine tailings on sweet potato (Ipomoea batatas L.) gold phytomining. The pot experiment was conducted in the Faculty of Agriculture greenhouse at Padjadjaran University in Indonesia. The sweet potato MZ119 clone (an orange-fleshed sweet potato) was planted on a polybag (40 x 40 cm) consisting of 10 kg of planting media, which was a mixture of gold mine tailing and soil. The design used was a completely randomized design factorial with three replications. The first factor was ratios of gold mine tailing consisting of three levels, namely 30%, 50%, 70%, and 100% (w/w). The second factor was doses of organic manure, namely without cow manure, 250 g pot-1, 500 g pot-1, and 750 g pot-1. The results demonstrated that the application of cow dung and the gold mine tailings ratio (w/w) had a significant (p = 0.05) effect on plants' dry weight biomass, gold accumulation, and gold phytomining by sweet potato. The highest gold mass yield of 0.066 mg gold plant-1 was achieved by a 50% (w/w) gold mine tailing ratio and 750 g pot-1 cow manure treatment. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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17. Field trial of Provus-Alkin-amalgamation evaluation application based on Weighted-Product-Rwa-Bhineda mods.
- Author
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Arta Suyasa, P. Wayan, Hendra Divayana, Dewa Gede, Wisna Ariawan, I. Putu, Lissia Andayani, Made Susi, Indhi Wiradika, I. Nyoman, and Adiarta, Agus
- Subjects
TEACHER competencies ,SMALL schools ,UNIVERSITIES & colleges ,EXPLORATORY factor analysis - Abstract
The purpose of this study was to demonstrate the effectiveness level of the Provus-Alkin-amalgamation evaluation application based on Weighted-Product-Rwa-Bhineda modification through the results of field trials. This evaluation application was an evaluation tool formed by a combination of educational evaluation models (Provus model and Alkin model), decision support system methods (weighted product), and the concept of Balinese local wisdom (Rwa Bhineda). This research approach was developed, using the Borg and Gall model. The focus of the development phase in this study was field trials and revisions to field trials. The tool used to provide scores by respondents in field trials was a questionnaire. Subjects involved in field trials were 164 respondents. The research location was at several IT vocational schools in Bali. Data analysis was done by comparing the results of field trials with effectiveness standards referring to a five scale. The results showed that the percentage of effectiveness was 81.20%. It proved that the Provus-Alkin-amalgamation evaluation application based on Weighted-Product-Rwa-Bhineda modification was good. The impact of the results of this research is as a trigger to develop innovations in educational evaluation by integrating various fields of science (multidisciplinary science) in the form of one digital application. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
18. PCP-YOLO: an approach integrating non-deep feature enhancement module and polarized self-attention for small object detection of multiscale defects.
- Author
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Wang, Penglin, Shi, Donghui, and Aguilar, Jose
- Abstract
The detection of small objects within multiscale defects amidst complex background interference presents a formidable challenge in industrial defect detection. To address this issue and achieve precise and expeditious identification in industrial defect detection, this study proposes PCP-YOLO, a novel network that incorporates a non-deep feature extraction module and a polarized filtering feature fusion module for small object defect detection. Initially, YOLOv8 is employed as the foundational model. Subsequently, a lightweight, non-deep feature extraction module, PotentNet, is designed and integrated into the backbone network. In the neck network, a feature fusion module incorporating polarized self-attention, C2f_ParallelPolarized, has been developed. Finally, CARAFE is utilized to substitute the original upsampling module in the neck network. The efficacy of this approach has been rigorously evaluated using three datasets: the publicly available NEU-DET and PKU-PCB datasets, and the real-world industrial dataset GC10-DET. The mAP@0.5 values achieved are 79.4%, 96.1%, and 77.6%, significantly outperforming other detection methods. The method also has a fast inference speed. These results demonstrate that PCP-YOLO exhibits substantial potential for rapid and accurate defect detection. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
19. Sedimentary provenance supports a mid-paleozoic tectonic connection between the Junggar and Altai terranes in central Asia
- Author
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Di Li, Yigui Han, Guochun Zhao, Mei-Fu Zhou, Dengfa He, Shuoqin Hou, Yu Zhen, Dan Fan, and Hao Yang
- Subjects
Source-to-sink relationship ,Terrane amalgamation ,Accretionary tectonic transition ,Early paleozoic ,Southern CAOB ,Medicine ,Science - Abstract
Abstract The provenance of Precambrian detritus in the Junggar and Altai terranes provides crucial constraints on the peri-Siberian accretionary tectonic evolution in the middle Paleozoic. The Precambrian detrital zircons have no coeval magmatic equivalents in the Junggar terrane but show U–Pb age spectra and εHf(t) values comparable to those in the Altai terrane. The correlations suggest that the old detrital materials in the Junggar and Altai terranes were most likely derived from the Siberia craton and adjacent Tuva-Mongolian microcontinent. Paleozoic zircons in the Junggar terrane display a εHf(t) pattern from large spread to dominantly positive values at ca. 420–410 Ma. Such an abrupt change points to an accretionary tectonic transition from an advancing to retreating mode during mid-Paleozoic time, synchronous with similar tectonic switch occurring in the Altai terrane. Taking into account the temporal and spatial relations in sedimentation, tectonism and arc magmatism, we propose that the Junggar terrane had once collided onto the peri-Siberian Altai terrane to receive abundant old detritus from the Siberian continent in the Silurian–early Devonian. They were subsequently separated at ca. 420–410 Ma, possibly due to the slab rollback of the subducting Paleo-Asian Ocean (PAO) plate. These results constrain an Early Paleozoic tectono-paleogeographic boundary of the CAOB along the North Tianshan–Solonker suture zone, and also imply a long-lived PAO subduction was responsible for the Neoproterozoic to Paleozoic accretionary orogenesis at the margins of southern Siberia, eastern Kazakhstan, and northern Gondwana.
- Published
- 2024
- Full Text
- View/download PDF
20. Sedimentary provenance supports a mid-paleozoic tectonic connection between the Junggar and Altai terranes in central Asia.
- Author
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Li, Di, Han, Yigui, Zhao, Guochun, Zhou, Mei-Fu, He, Dengfa, Hou, Shuoqin, Zhen, Yu, Fan, Dan, and Yang, Hao
- Subjects
- *
SLABS (Structural geology) , *PALEOZOIC Era , *PRECAMBRIAN , *DETRITUS , *CONTINENTS - Abstract
The provenance of Precambrian detritus in the Junggar and Altai terranes provides crucial constraints on the peri-Siberian accretionary tectonic evolution in the middle Paleozoic. The Precambrian detrital zircons have no coeval magmatic equivalents in the Junggar terrane but show U–Pb age spectra and εHf(t) values comparable to those in the Altai terrane. The correlations suggest that the old detrital materials in the Junggar and Altai terranes were most likely derived from the Siberia craton and adjacent Tuva-Mongolian microcontinent. Paleozoic zircons in the Junggar terrane display a εHf(t) pattern from large spread to dominantly positive values at ca. 420–410 Ma. Such an abrupt change points to an accretionary tectonic transition from an advancing to retreating mode during mid-Paleozoic time, synchronous with similar tectonic switch occurring in the Altai terrane. Taking into account the temporal and spatial relations in sedimentation, tectonism and arc magmatism, we propose that the Junggar terrane had once collided onto the peri-Siberian Altai terrane to receive abundant old detritus from the Siberian continent in the Silurian–early Devonian. They were subsequently separated at ca. 420–410 Ma, possibly due to the slab rollback of the subducting Paleo-Asian Ocean (PAO) plate. These results constrain an Early Paleozoic tectono-paleogeographic boundary of the CAOB along the North Tianshan–Solonker suture zone, and also imply a long-lived PAO subduction was responsible for the Neoproterozoic to Paleozoic accretionary orogenesis at the margins of southern Siberia, eastern Kazakhstan, and northern Gondwana. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. Amalgamation lexicale et dénomination de produits commerciaux en Algérie.
- Author
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Slimani, Souad and Moustiri, Zineb
- Subjects
- *
LINGUISTS , *MORPHOLOGY - Abstract
This article aims at providing a description of the lexical amalgamation which meets the practical communication needs in Algeria. It focuses on this activity of lexical creation, particularly regarding the names of Algerian products. The goal is to present a review of two concepts of amalgamation and naming. Then, it analyzes some lexical amalgams of naming based on the typologies of different linguists in order to demonstrate the particularity of the morphological mechanism used by the creators of these nouns. It counts on certain morphological structures that amalgams can encompass. [ABSTRACT FROM AUTHOR]
- Published
- 2024
22. POSITIVE COMPLETE THEORIES AND POSITIVE STRONG AMALGAMATION PROPERTY.
- Author
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Belkasmi, Mohammed
- Subjects
- *
GROUP theory , *PHILOSOPHY of language , *LINGUISTIC change , *MODEL theory , *MATHEMATICAL models - Abstract
We introduce the notion of positive strong amalgamation property and we investigate some universal forms and properties of this notion. Considering the close relationship between the amalgamation property and the notion of complete theories, we explore the fundamental properties of positively complete theories, and we illustrate the behaviour of this notion by bringing changes to the language of the theory through the groups theory. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
23. Revolutionizing urogynecology: Machine learning application with patient-centric technology: Promise, challenges, and future directions.
- Author
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Rotem, Reut, Galvin, Daniel, Daykan, Yair, Mi, Yanlin, Tabirca, Sabin, and O'Reilly, Barry A.
- Subjects
- *
DIGITAL technology , *DATA privacy , *ELECTRONIC health records , *PATIENT participation , *ARTIFICIAL intelligence - Abstract
In an epoch where digital innovation is redefining the medical landscape, electronic health records (EHRs) stand out as a pivotal transformative force. Urogynecology, a discipline anchored in intricate patient histories and meticulous follow-ups, is on the brink of profound transformation due to these digital strides. While EHRs have unified patient data, challenges related to data privacy, interoperability, and access persist. In response, we present Pelvic Health Place (PHPlace) – a multilingual, patient-centric application. Purposefully designed to bolster patient engagement, PHPlace provides clinicians with essential pre-consultation insights, streamlines the consent process, vividly delineates surgical pathways, and assures comprehensive long-term monitoring. This platform also establishes a foundation for global data amalgamation, promising to invigorate research and potentially harness artificial intelligence (AI) capabilities. With AI integration, we anticipate a more tailored treatment approach and enriched patient education, signaling a pivotal shift in urogynecology and emphasizing the imperative for ongoing academic inquiry. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
24. Impact of Geographical Indications on Revitalisation of Local Economy: A Case Study of Darjeeling Tea.
- Author
-
Jamal, Shahid, Upadhyay, Aakash, and Moin, Khusro
- Abstract
Darjeeling is an important tourist destination and situated in the lower Himalayas at an average elevation of above 2000 m. Next to water, tea is the most extensively consumed beverage by human beings. Today, hills of Darjeeling positioned as one of the best quality tea productions in the world. Darjeeling tea has a complex and unique amalgamation of agro-climatic conditions which contributed to its unique savour and quality that has won the heart of millions of consumers across the globe. The unique quality and reputation of the tea attributable to its geographical origin was the major reason for Darjeeling tea to get the first Geographical Indications (GI) status in India in 2004. The basic objective of the study is to analyse the role of Geographical Indications in improving the living standard of the local community. After the analysis, it was concluded that tea is a labour-intensive industry which required a good number of labourers to plant, bend, pluck and manufacture. Darjeeling's fragile ecosystem has been endangered by increasing demand for natural resources. There is an urgent need to make locals aware about the different advantages of GI so that they can avail the benefits of it and improve things in future. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
25. More Money or More Problems? Assessing the Fiscal Impact of Consolidation in Macon-Bibb County, Georgia.
- Author
-
Acuff, Christopher
- Abstract
Attempts to create consolidated city-county governments have persisted in recent decades, with many local government reformers touting this type of organizational change as a solution to a number of challenges in metropolitan areas. Overall, research in this area has generally shown no conclusive outcomes related to achieving greater efficiencies as measured by a reduction in expenditures. However, the 2014 consolidation of Macon-Bibb County, Georgia presents an opportunity to explore a substantively important case due to a mandated 20% reduction in expenditures over a 5-year period. This analysis finds that while officials generally met their goal of reducing budgeted expenditures, an analysis of actual expenditures and questions pertaining to longer-term outcomes, including reductions in staffing, performance, and credit ratings may be a cautionary tale for similar efforts in the future. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. Strategic design for enhancing performance in additively manufactured multi-material structures of high-strength steel and Ti6Al4V.
- Author
-
Wei, Chao, Zhao, Zhuang, Wang, Chao, Shen, Xianfeng, Yang, Jialin, Wang, Guowei, Qin, Yu, Sun, Mingyan, Tang, Jingang, Yang, Yang, and Le, Guomin
- Subjects
- *
THERMOPHYSICAL properties , *TENSILE strength , *AMALGAMATION , *STEEL , *SOLUBILITY - Abstract
Multi-material additive manufacturing (MMAM) is garnering escalating interest. Yet, joining dissimilar materials faces formidable challenges due to solubility limitations and divergences in thermophysical properties. Taking the joining of high-strength steel (HSS) and Ti6Al4V (TC4) as an example, this work seeks to address various challenges encountered in MMAM. An exhaustive inquiry was undertaken to scrutinize the effects of various joining strategies (direct joining, composition gradient paths, and interlayer strategy) and deposition strategies (deposition sequence, interlayer thickness, and process parameters) on the AM-induced bonding of HSS to TC4. The findings demonstrate that these advanced strategic designs can effectively mitigate challenges arising from disparities in material compatibility and thermophysical properties between HSS and TC4. Leveraging rigorous thermodynamic analyses and the strategic orchestration of building techniques, three HSS–Cu10Sn–Nb–TC4 samples were successfully fabricated via laser-directed energy deposition (LDED), each manifesting tensile strengths exceeding 200 MPa. This achievement heralds a notable leap forward in the amalgamation of materials, particularly high-strength steel and titanium alloys, which could provide valuable insights into other MMAM structures. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
27. Indirect Surface-Enhanced Raman Scattering Sensor for Direct Detection of Gaseous Elemental Mercury.
- Author
-
Santos, Deysiane A. L., de Barros, Anerise, dos Santos, Diego P., Pereira, Gabriel C., Shimizu, Flavio M., Fostier, Anne H., Sigoli, Fernando A., and Mazali, Italo O.
- Abstract
Gaseous elemental mercury (GEMHg
0 (g) ) is a highly toxic global pollutant with environmental and human health effect concerns. Monitoring the GEM released in gold mining operation regions is extremely necessary. Herein, we develop an indirect surface-enhanced Raman scattering (SERS)-miniaturized sensor for the direct detection of Hg0 (g) using gold nanorods (AuNRs) and rhodamine 6G as a probe molecule. SERS spectra show a suppressed signal after exposure to Hg0 (g) in different concentrations caused by the morphologic transition of the nanorods to spheres. Discrete dipole approximation (DDA) and density functional theory (DFT) simulations reveal that the energetic phenomena involved during the Au–Hg amalgam formation process can lead to drastic changes in the AuNR's plasmonic characteristic, suppressing the SERS signal. This effect is the key to achieving the high performance to detect Hg0 (g) until 0.08 μg. Additionally, the SEM-EDS results confirmed the AuNR's morphological changes after exposure to Hg0 (g) , and principal component analysis and root-mean-square error reveal the high sensitivity, mainly for the lower amount of Hg0 (g) (0.08–1.02 μg), corroborating the DDA and DFT simulations whose Au–Hg alloy formation on the AuNR's surface is energetically more favorable, occurring more quickly and efficiently than the diffusion process. Moreover, these results show nanorod structures are more efficient than spherical ones. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
28. Amalgamation evaluation model design based on modification weighted product-Provus-Alkin-Rwa Bhineda.
- Author
-
Hendra Divayana, Dewa Gede, Arta Suyasa, P. Wayan, and Wisna Ariawan, I. Putu
- Subjects
VOCATIONAL schools ,LEARNING Management System ,ASYNCHRONOUS learning ,EDUCATIONAL evaluation ,EFFECTIVE teaching - Abstract
The new normal era allowed learning at IT vocational schools to be carried out directly (synchronously) through online meeting platforms and indirectly (asynchronously) through email, WhatsApp groups, and learning management system (LMS). However, the reality showed that not all synchronous and asynchronous learning implementations were effective. Based on these problems, it was necessary to evaluate and used an appropriate evaluation model. A breakthrough was used, namely the Amalgamation evaluation model based on the modification of the weighted product with the Provus and Alkin models in view of the Rwa Bhineda concept. The purpose of this research was to show the Amalgamation evaluation model design based on weighted product modification with the Provus and Alkin models in view of the Rwa Bhineda concept as the basis for determining the dominant indicators that need to be maintained for the synchronous-asynchronous learning effectiveness. This research used a development approach that focused on the design, initial trial, and initial trial revision. The analysis of this study results used a quantitative descriptive technique, namely the percentage descriptive calculation. This research results showed the evaluation model design was good categorized as evidenced by the average percentage of effectiveness was 88.67%. The emerging significance and value of this research results was the existence of innovation in the educational evaluation field, which makes it easier for evaluators to determine the dominant indicators that need to be maintained in supporting the effectiveness of synchronous-asynchronous learning implementation in IT vocational schools generally, and specifically in IT vocational schools in Bali. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
29. LIXIVIAÇÃO INTENSIVA PARA MINÉRIO DE OURO DA BAIXADA CUIABANA/MT.
- Author
-
de Araujo Oliveira, Daiana, Sella Silva, Isabella Adjany, Arruda Mamedes, Thiago, Henrique Neuppman, Pedro, da Silva Molina, André Luiz, Carlos Silva, André, and Schons Silva, Elenice Maria
- Subjects
CHEMICAL processes ,AMALGAMATION ,PILOT plants ,GOLD ,MINERALS - Abstract
Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
30. "The Season of Exaggerated Hopes": Richard T. Greener in the Reconstruction University.
- Author
-
Harrelson, Kevin J.
- Subjects
- *
RACE , *ENVIRONMENTAL auditing , *ARCHIVAL resources , *INTELLECTUAL history , *CONSTITUTIONALISM , *MENTORS - Abstract
Richard T. Greener was the first Black graduate of Harvard College in 1870, and he served briefly as a professor of philosophy at the University of South Carolina from 1873 to 1877. Historians and biographers have uncovered many of the facts of his unusual life, but to date his philosophy has remained unappreciated. This essay reconstructs his philosophy from published and archival sources, evaluating it in relationship to the work of his better-known mentor, Frederick Douglass. I argue that Greener's account of Reconstruction politics, especially his arguments on land redistribution, race, and Black intellectual history, possess notable advantages over Douglass's views. Of particular importance is that he defended a more robust republican state than did his hero, while rejecting the originalism and constitutionalism that characterize Douglass's liberalism. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
31. Amalgamation of Circadian Clock Gene with Incidence of Myocardial Infa rction.
- Author
-
Fatima, Ghizal, Parvez, Sidrah, Tuomainen, Petri, Fedacko, Jan, Kazmi, Danish Hasan, and Nagib Elkilany, Galal E.
- Subjects
MYOCARDIAL infarction ,TROPONIN ,GENOMICS ,BODY mass index ,GENETIC markers ,HYPERTENSION ,LOGISTIC regression analysis ,KRUSKAL-Wallis Test ,CARDIOVASCULAR diseases risk factors ,DNA ,LYMPHOCYTES ,REVERSE transcriptase polymerase chain reaction ,CHI-squared test ,MANN Whitney U Test ,GENETIC polymorphisms ,GENETIC variation ,CIRCADIAN rhythms ,DATA analysis software ,GENOTYPES ,SINGLE nucleotide polymorphisms ,OBESITY ,ALLELES - Abstract
Objectives: The present study included 40 participants to investigate the association of circadian locomotor output cycles kaput (CLOCK) rs4580704 polymorphism with myocardial infarction (MI) cases. Materials and Methods: In this study, we enrolled 20 male and 20 female cases with MI. Genomic DNA extraction was done from lymphocytes using conventional techniques, employing the QIAamp DNA Blood Mini Kit (Qiagen, Hilden, Germany) from lymphocytes. Genotyping was conducted through TaqMan singlenucleotide polymorphism genotyping assays, employing real-time polymerase chain reaction (PCR) on a 7500 Real-Time PCR System (Applied Biosystems, Foster City, CA, USA). This streamlined approach ensures accurate and efficient analysis of genetic markers associated with MI across gender groups. Results: The study revealed significant associations between body mass index (BMI), hypertension, obesity, current smoking, and type 2 diabetes among both male and female MI patients. However, age, systolic blood pressure (SBP), and diastolic blood pressure (DBP) did not exhibit significant differences between genders. Analysis of CLOCK rs4580704 polymorphism indicated no variance in genotype and allele frequencies between male and female MI patients. When considering both genders, CLOCK rs4580704 polymorphism was significantly associated with BMI, hypertension, obesity, current smoking, and type 2 diabetes (P = 0.02, P = 0.02, P = 0.04, and P = 0.02, respectively). Nevertheless, logistic regression analysis showed no significant differences among MI cases across the various models of CLOCK rs4580704 polymorphism. Conclusion: No significant association was found between CLOCK rs4580704 polymorphism and MI in both genders. However, significant links were identified between this polymorphism and various cardiovascular risk factors including BMI, SBP, DBP, hypertension, obesity, current smoking, and type 2 diabetes in MI cases. These findings underscore the potential influence of CLOCK rs4580704 polymorphism on cardiovascular risk profiles among individuals with MI. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
32. Rainbow Connection on Amal(Fn, xz, m) Graphs and Amal(on, xn, m) Graphs.
- Author
-
Hudloir, Muhammad Usaid, Dafik, Adawiyah, Robiatul, Prihandini, Rafiantika Megahnia, and Kristiana, Arika Indah
- Subjects
GRAPHIC methods ,AMALGAMATION ,GEOMETRIC vertices ,RESEARCH ,GEOMETRIC connections - Abstract
Coloring graph is giving a color to a set of vertices and a set of edges on a graph. The condition for coloring a graph is that each color is different for each neighboring member graph. Coloring graph can be done by mapping a different color to each vertex or edge. Rainbow coloring is a type of rainbow connected with coloring edge. It ensures that every graph G has a rainbow path. A rainbow path is a path in a graph where no two vertices have the same color. The minimum number of colors in a rainbow connected graph is called the rainbow connection number denoted by rc(G). The graphs used in this study are the Amal(Fn,xz,m) graph and the Amal(o
n , xn, m) graph. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
33. Turning gold tailings into paving blocks: A sustainable solution.
- Author
-
Asrifah, Rr. Dina, Wicaksono, Aditya Pandu, Widiarti, Ika Wahyuning, Widhiananto, Praditya Anggi, Perwira, A. Rofiq, Sobirin, Ahmad, Pratiwi, Distika, Adiana, N. A. Sofia, and Yustika, Firstananda
- Subjects
- *
CONSTRUCTION & demolition debris , *ADHESIVE cements , *AMALGAMATION , *COMPRESSIVE strength , *PAVEMENTS , *SAND - Abstract
Gold tailings processing using traditional methods with amalgamation can have a negative environmental impact, with potential heavy metal leaching during the rainy season. Solidification is a method that can reduce permeability and increase tailings' physical strength through the addition of adhesives such as sand and cement. This study aims to examine the effectiveness of sand and tailings' composition variation on compressive strength in paving blocks. The study used compressive strength testing to evaluate the physical characteristics of the blocks. Results showed that the addition of sand and tailings increased compressive strength, with the optimal mix ratio being 1:1.5 sand to tailings. These findings suggest that using solidification through adding sand and cement can mitigate environmental harm caused by untreated tailings and provide a useful application for waste material in the construction industry. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
34. Two Heads Are Better Than One: Teaching MLPs with Multiple Graph Neural Networks via Knowledge Distillation
- Author
-
Yang, Bo-Wei, Chang, Ming-Yi, Lu, Chia-Hsun, Shen, Chih-Ya, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Onizuka, Makoto, editor, Lee, Jae-Gil, editor, Tong, Yongxin, editor, Xiao, Chuan, editor, Ishikawa, Yoshiharu, editor, Amer-Yahia, Sihem, editor, Jagadish, H. V., editor, and Lu, Kejing, editor
- Published
- 2024
- Full Text
- View/download PDF
35. Integrated Water Resources Management (IWRM) in the Geospatial Epoch: An Ontological Dive into Sustainable Hydrological Governance
- Author
-
Shukla, Bishnu Kant, Tripathi, Amit, Nagavi, Jyothi Chandrakantha, Prasad, Shruti, Sahoo, Muktesh, Chaudary, Sumit, Ayush, Verma, Shivam, Sharma, Chetan, editor, Shukla, Anoop Kumar, editor, Pathak, Shray, editor, and Singh, Vijay P., editor
- Published
- 2024
- Full Text
- View/download PDF
36. Robust Heterogeneous Federated Learning via Data-Free Knowledge Amalgamation
- Author
-
Ma, Jun, Fan, Zheng, Fan, Chaoyu, Kang, Qi, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Tan, Ying, editor, and Shi, Yuhui, editor
- Published
- 2024
- Full Text
- View/download PDF
37. Building Digital Capacity in the Face of Crisis: Exploring the Impact of Municipal Amalgamations in an Intergovernmental Context
- Author
-
Torfs, Inke, Wayenberg, Ellen, Schaap, Linze, Series Editor, Franzke, Jochen, Series Editor, Vakkala, Hanna, Series Editor, Teles, Filipe, Series Editor, Kuhlmann, Sabine, Laffin, Martin, Wayenberg, Ellen, and Bergström, Tomas
- Published
- 2024
- Full Text
- View/download PDF
38. Museum Education: Integration of Cultural Heritage and Educational Metadata Schemas
- Author
-
Vlachou, Eleni, Karydis, Ioannis, Rannenberg, Kai, Editor-in-Chief, Soares Barbosa, Luís, Editorial Board Member, Carette, Jacques, Editorial Board Member, Tatnall, Arthur, Editorial Board Member, Neuhold, Erich J., Editorial Board Member, Stiller, Burkhard, Editorial Board Member, Stettner, Lukasz, Editorial Board Member, Pries-Heje, Jan, Editorial Board Member, Kreps, David, Editorial Board Member, Rettberg, Achim, Editorial Board Member, Furnell, Steven, Editorial Board Member, Mercier-Laurent, Eunika, Editorial Board Member, Winckler, Marco, Editorial Board Member, Malaka, Rainer, Editorial Board Member, Maglogiannis, Ilias, editor, Iliadis, Lazaros, editor, Karydis, Ioannis, editor, Papaleonidas, Antonios, editor, and Chochliouros, Ioannis, editor
- Published
- 2024
- Full Text
- View/download PDF
39. Inventing the Race: Latinos and the Ethnoracial Pentagon
- Author
-
Torres-Saillant, Silvio, Torres, Lourdes, editor, and Alicea, Marisa, editor
- Published
- 2024
- Full Text
- View/download PDF
40. Attribution Guided Layerwise Knowledge Amalgamation from Graph Neural Networks
- Author
-
Hao, Yunzhi, Wang, Yu, Liu, Shunyu, Zheng, Tongya, Wang, Xingen, Wang, Xinyu, Song, Mingli, Huang, Wenqi, Chen, Chun, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Luo, Biao, editor, Cheng, Long, editor, Wu, Zheng-Guang, editor, Li, Hongyi, editor, and Li, Chaojie, editor
- Published
- 2024
- Full Text
- View/download PDF
41. Positive Complete Theories and Positive Strong Amalgamation Property
- Author
-
Mohammed Belkasmi
- Subjects
h-inductive theory ,existentially closed ,complete theory ,positive amalgamation ,positive strong amalgamation ,mathematical model ,semantics ,Logic ,BC1-199 - Abstract
We introduce the notion of positive strong amalgamation property and we investigate some universal forms and properties of this notion. Considering the close relationship between the amalgamation property and the notion of complete theories, we explore the fundamental properties of positively complete theories, and we illustrate the behaviour of this notion by bringing changes to the language of the theory through the groups theory.
- Published
- 2024
- Full Text
- View/download PDF
42. Soil and Urine Mercury Levels in Secocha: A Case Study of Artisanal and Small-Scale Gold Mining in Peru
- Author
-
Rolando Quispe Aquino, Fredy Fortunato García Zúñiga, and Aaron Malone
- Subjects
mercury pollution ,artisanal and small-scale gold mining (ASGM) ,artisanal and small-scale mining (ASM) ,soil contamination ,urine ,amalgamation ,Mining engineering. Metallurgy ,TN1-997 - Abstract
In recent decades, artisanal and small-scale gold mining (ASGM) has spurred population and economic growth in the small rural communities in which it is located, along with causing contamination of the soil, air, and water with grave effects on human health due to the uncontrolled use of mercury for gold processing activities. This study analyzes the levels of mercury in Secocha, an ASGM community in Arequipa, Peru. A total of 44 soil samples were taken from two ASGM commercial-extractive zones (n = 18) and non-processing urban zones (n = 26). Soil mercury analysis with atomic absorption spectrometry revealed average mercury levels of 86.11 mg/kg in commercial-extractive zone I, where ore processing has occurred for about 17 years, and mercury levels of 43.81 mg/kg in commercial-extractive zone II, where processing has occurred for about 7 years. In the urban zone, the average mercury level was 9.53 mg/kg. The average mercury concentrations for each zone exceed the relevant environmental quality standards established by the Peruvian Ministry of the Environment. In addition, urine samples were obtained from 15 miners and 15 people from the general urban population (non-miners). The average mercury level in the urine of miners was 7.04 µg/L, and in the urine of non-miners it was 0.49 µg/L. In both cases, the mercury urine level did not exceed the limits established by WHO and the Peruvian Ministry of Health, though miners’ elevated levels do raise concerns.
- Published
- 2024
- Full Text
- View/download PDF
43. Use of Metallic Mercury in Artisanal Gold Mining by Amalgamation: A Review of Temporal and Spatial Trends and Environmental Pollution.
- Author
-
Donkor, Augustine K., Ghoveisi, Hossein, and Bonzongo, Jean-Claude J.
- Subjects
- *
GOLD mining , *POLLUTION , *MERCURY , *AMALGAMATION , *ENVIRONMENTAL health , *SEARCH engines ,DEVELOPING countries - Abstract
The introduction of mercury (Hg) into the environment by anthropogenic activities has resulted in negative implications for ecosystem functions and human health. Unlike the legacy of huge environmental pollution left by historic gold rushes in several developed countries, gold-rich nations in the developing world are currently witnessing what could qualify as a "new gold rush", conducted primarily by small-scale mining operators and characterized by the use of metallic Hg (Hg0) in the amalgamation process to extract gold from crude ores. Once introduced into the environment, Hg0 can undergo biogeochemical transformations to produce Hg species such as methyl-Hg, with well-established adverse impacts on living organisms. This review summarizes published data on both historical and recent trends of the use of Hg0 in artisanal gold mining (AGM) on a global scale and emphasizes the impacts of AGM on the environment. To achieve this, we used citations from research conducted in North and South America, Europe, Asia, Africa, Australia, and New Zealand, obtained from several search engines and databases. Our findings show that, in addition to the well-known environmental and human health adverse effects of gold mining with Hg0, gold extraction by the Hg amalgamation technique is boosting the economy in parts of Africa, South America, and Asia. Unfortunately, this appealing aspect of AGM may not be easily halted, pending the creation of alternative employment. Therefore, there is a clear need for the development of safe and affordable gold extraction and purification technologies. Ultimately, the growth of this specific economic sector should be regulated to help protect both the environment and human health. Information compiled in this review should help to (i) improve the mapping of AGM-impacted soil and aquatic systems on a global scale and (ii) stimulate discussions and research on how to take down current barriers to the development and implementation of safe AGM methods. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. Ornithine-stabilised gold nanoflowers for label-free sensitive detection of Hg2+ via amalgamation.
- Author
-
Sudhesh, Priya and U.S., Athira
- Subjects
- *
SURFACE plasmon resonance , *MERCURY , *GOLD nanoparticles , *GOLD , *SEWAGE , *AMALGAMATION - Abstract
A simple, eco-friendly method for the synthesis of gold nanoflowers using a non-proteinogenic amino acid is discussed in the present work. Gold nanostructure with unique morphology was synthesized, with the assistance of ornithine amino acid. Ornithine-stabilised gold nanoflowers were found to be highly sensitive towards mercury ions (Hg2+) due to Au–Hg amalgamate formation. Due to amalgamate formation, an evolution in morphology of ornithine-stabilised gold nanoflowers happens which can be monitored by the red shift in surface plasmon resonance. Under optimum conditions, our sensor shows a dynamic response range with a detection limit of 6 nM. This developed nanosensor can be used as Hg2+ ion sensor in polluted water/waste water by a one-step assay protocol. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
45. Tiyatroda Kokunun İzinden.
- Author
-
TATAR, Gamze ŞENTÜRK
- Subjects
THEATER ,SOUND in art ,AMALGAMATION ,AUDIENCES ,ODORS - Abstract
Copyright of Journal of Literature & Humanities / Edebiyat ve Beşeri Bilimler Dergisi is the property of Ataturk University Coordinatorship of Scientific Journals and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
46. Soil and Urine Mercury Levels in Secocha: A Case Study of Artisanal and Small-Scale Gold Mining in Peru.
- Author
-
Quispe Aquino, Rolando, García Zúñiga, Fredy Fortunato, and Malone, Aaron
- Subjects
MERCURY in soils ,URINALYSIS ,GOLD mining ,ECONOMIC development - Abstract
In recent decades, artisanal and small-scale gold mining (ASGM) has spurred population and economic growth in the small rural communities in which it is located, along with causing contamination of the soil, air, and water with grave effects on human health due to the uncontrolled use of mercury for gold processing activities. This study analyzes the levels of mercury in Secocha, an ASGM community in Arequipa, Peru. A total of 44 soil samples were taken from two ASGM commercial-extractive zones (n = 18) and non-processing urban zones (n = 26). Soil mercury analysis with atomic absorption spectrometry revealed average mercury levels of 86.11 mg/kg in commercial-extractive zone I, where ore processing has occurred for about 17 years, and mercury levels of 43.81 mg/kg in commercial-extractive zone II, where processing has occurred for about 7 years. In the urban zone, the average mercury level was 9.53 mg/kg. The average mercury concentrations for each zone exceed the relevant environmental quality standards established by the Peruvian Ministry of the Environment. In addition, urine samples were obtained from 15 miners and 15 people from the general urban population (non-miners). The average mercury level in the urine of miners was 7.04 µg/L, and in the urine of non-miners it was 0.49 µg/L. In both cases, the mercury urine level did not exceed the limits established by WHO and the Peruvian Ministry of Health, though miners' elevated levels do raise concerns. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. ONE-VARIABLE FRAGMENTS OF FIRST-ORDER LOGICS.
- Author
-
CINTULA, PETR, METCALFE, GEORGE, and TOKUDA, NAOMI
- Subjects
FIRST-order logic ,HEYTING algebras ,MODAL logic ,ALGEBRAIC varieties ,INTERPOLATION - Abstract
The one-variable fragment of a first-order logic may be viewed as an "S5-like" modal logic, where the universal and existential quantifiers are replaced by box and diamond modalities, respectively. Axiomatizations of these modal logics have been obtained for special cases—notably, the modal counterparts $\mathrm {S5}$ and $\mathrm {MIPC}$ of the one-variable fragments of first-order classical logic and first-order intuitionistic logic, respectively—but a general approach, extending beyond first-order intermediate logics, has been lacking. To this end, a sufficient criterion is given in this paper for the one-variable fragment of a semantically defined first-order logic—spanning families of intermediate, substructural, many-valued, and modal logics—to admit a certain natural axiomatization. More precisely, an axiomatization is obtained for the one-variable fragment of any first-order logic based on a variety of algebraic structures with a lattice reduct that has the superamalgamation property, using a generalized version of a functional representation theorem for monadic Heyting algebras due to Bezhanishvili and Harding. An alternative proof-theoretic strategy for obtaining such axiomatization results is also developed for first-order substructural logics that have a cut-free sequent calculus and admit a certain interpolation property. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Highly efficient capture of mercury from complex water matrices by AlZn alloy reduction–amalgamation and in situ layered double hydroxide.
- Author
-
Fang, Yetian, Li, Fangyuan, Chao, Jingbo, Tang, Yang, Coulon, Frederic, Krasucka, Patrycja, Oleszczuk, Patryk, Hu, Qing, and Yang, Xiao Jin
- Subjects
LAYERED double hydroxides ,COMPLEX matrices ,MERCURY ,ALLOYS ,CHEMICAL reduction - Abstract
Mercury pollution is a critical, worldwide problem and the efficient, cost-effective removal of mercury from complex, contaminated water matrices in a wide pH range from strongly acidic to alkaline has been a challenge. Here, AlZn and AlFe alloys are investigated and a new process of synergistic reduction–amalgamation and in situ layered double hydroxide (SRA-iLDH) for highly efficient capture of aqueous Hg(II) is developed using AlZn alloys. The parameters include the pH values of 1–12, the Hg(II) concentrations of 10–1000 mg L
−1 , and the alloy's Zn concentrations of 20%, 50% and 70% and Fe concentrations of 10%, 20% and 50%. The initial rate of Hg(II) uptake by AlZn alloys decreases with increasing Zn concentration while the overall rate is not affected. Specifically, AlZn50 alloy removes >99.5% Hg(II) from 10 mg L−1 solutions at pH 1–12 in 5 min at a rate constant of 0.055 g mg−1 min−1 and achieves a capacity of 5000 mg g−1 , being the highest value reported so far. The super-performance of AlZn alloy is attributed to multiple functions of chemical reduction, dual amalgamation, in situ LDH's surface complexation and adsorption, isomorphous substitution and intercalation. This study provides a simple and highly efficient approach for removing Hg(II) from complex water matrices. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
49. Toward a three-dimensional counterpart of Cruse's theorem.
- Author
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Bahmanian, Amin
- Subjects
- *
MAGIC squares , *COMPLETE graphs , *RECTANGLES , *HYPERGRAPHS - Abstract
Completing partial latin squares is NP-complete. Motivated by Ryser's theorem for latin rectangles, in 1974, Cruse found conditions that ensure a partial symmetric latin square of order m can be embedded in a symmetric latin square of order n. Loosely speaking, this results asserts that an n-coloring of the edges of the complete m-vertex graph K_m can be embedded in a one-factorization of K_n if and only if n is even and the number of edges of each color is at least m-n/2. We establish necessary and sufficient conditions under which an edge-coloring of the complete \lambda-fold m-vertex 3-graph \lambda K_m^3 can be embedded in a one-factorization of \lambda K_n^3. In particular, we prove the first known Ryser type theorem for hypergraphs by showing that if n\equiv 0\ (\mathrm {mod}\ 3), any edge-coloring of \lambda K_m^3 where the number of triples of each color is at least m/2-n/6, can be embedded in a one-factorization of \lambda K_n^3. Finally we prove an Evans type result by showing that if n\equiv 0\ (\mathrm {mod}\ 3) and n\geq 3m, then any q-coloring of the edges of any F\subseteq \lambda K_m^3 can be embedded in a one-factorization of \lambda K_n^3 as long as q\leq \lambda \binom {n-1}{2}-\lambda \binom {m}{3}/\left \lfloor m/3\right \rfloor. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. Amalgamation of Research-, Case-, Project-, and Video-based Learning in Teaching Engineering and Computing Ethics.
- Author
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HABASH, RIADH
- Subjects
AMALGAMATION ,ENGINEERING students ,COMPUTERS ,COLLABORATIVE learning ,PROFESSIONALISM - Abstract
To create effective learning environments for students, it is important to continually evolve curriculum and teaching strategies. This may involve an open pedagogy that encourages research within the classroom, promotes real-world problem-solving, and incorporates case studies, projects, and videos to enhance personalized and collaborative learning. These strategies can be implemented in both in-person, blended, and online learning settings to ensure that students receive a well-rounded education. This study delves into the practice of open pedagogy through the principle of Two-Eyed Seeing, which helps to integrate the powers of Indigenous ways of knowing with one eye, and Western ways of knowing with the other eye, for the benefit of teaching ethical professional practice in undergraduate engineering and computing programs. The students' self-assessments and feedback revealed noticeable improvements in their skills and competencies. This integrated approach to curriculum and pedagogy fosters critical and creative thinking in learners and cultivates a growth mindset that empowers them to take charge of their learning. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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