Academic literature on the topic 'Enrichment'

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Journal articles on the topic "Enrichment"

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Upadhyay, Kapil Dev, and Dr Vijay Kumar Soni. "Job Enrichment." Indian Journal of Applied Research 1, no. 6 (October 1, 2011): 107–8. http://dx.doi.org/10.15373/2249555x/mar2012/36.

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Sun, Chao, and Richard Breheny. "Shared mechanism underlying unembedded and embedded enrichments: evidence from enrichment priming." ZAS Papers in Linguistics 61 (January 1, 2018): 425–41. http://dx.doi.org/10.21248/zaspil.61.2018.505.

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In this paper, we use a priming paradigm to explore the mechanisms underlyingunembedded and embedded scalar enrichments. In particular, the aim is to see if localpragmatic enrichment could be a shared mechanism, involved in both. The two experimentspresented adopt Bott & Chemla's (2016) enrichment priming paradigm and test whetherunembedded and embedded enrichments could prime each other. The goal is to investigatewhether local pragmatic enrichment is indeed being accessed for the interpretation of theunembedded scalar and whether local enrichments, like other lexical semantic phenomena,are susceptible to priming.Keywords: pragmatics, scalar enrichments, priming.
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Powell, D. M. "Preliminary Evaluation of Environmental Enrichment Techniques for African Lions (Panthera leo)." Animal Welfare 4, no. 4 (November 1995): 361–70. http://dx.doi.org/10.1017/s0962728600018054.

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AbstractA study was conducted over 24 days to evaluate the effects of three environmental enrichment techniques (frozen balls of ice containing fish, various scents, hanging logs) on four captive African lions (Panthera leo). Behavioural data on activity level and behavioural diversity were collected daily during a baseline and an enriched session. All enrichments produced positive changes in behaviour. Enrichment was also associated with increased use of space by the lions. The enrichment techniques evaluated in this study each produced distinct and positive changes in behaviour thus reinforcing the need for variety to be exercised in captive enrichment programmes. Providing different enrichments allows animals to perform a greater range of behaviours, become more active in captivity, and will decrease the likelihood of habituation to certain enrichment items. Environmental enrichment should be a part of any management protocol for animal welfare and health.
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Kallail, K. James, Pam Shaw, Tyler Hughes, and Benito Berardo. "Enriching Medical Student Learning Experiences." Journal of Medical Education and Curricular Development 7 (January 2020): 238212052090216. http://dx.doi.org/10.1177/2382120520902160.

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Objective: Medical students should develop skills in assessing their own learning needs and developing strategies to meet those needs. Medical curricula should be designed to provide active and enriching ways to explore medicine beyond the classroom. The program should enrich the elements of motivation, discovery, innovation, social services, cultural exploration, and personal development. The University of Kansas School of Medicine instituted a new curriculum in 2017 called ACE (Active, Competency-based, and Excellence-driven). Eight 1-week courses of enrichment experiences are embedded within the first 2 years of the curriculum. Methods: After each of 8 medical content blocks, students are required to participate in a 1-week, nongraded enrichment experience according to their own learning needs and interests. Students choose the type of enrichment activities including clinical experiences, professional development, leadership development, research and scholarly activity, and community engagement. Students select their top enrichment choices and a computer lottery makes the assignments from their designations. Students engaged in research and scholarly activity are guided to appropriate research mentors. Results: A total of 196 enrichment activities at 3 campuses were developed for 211 students during the first 2 years of medical school. Most students selected clinical experiences with enrichments available in most medical specialties and subspecialties. Students also use enrichment weeks to conduct research/scholarly activity, particularly those students pursuing the Honors Track. A total of 2071 enrichment experiences were completed in the first 2 years. Conclusions: Most enrichments involved clinical experiences, although research/scholarly activity and professional development enrichments also were popular. Evaluations from students and antidotal data suggested enrichments are popular among students and a good change of pace from the usual rigorous activities of the curriculum. Because of the large number of experiences required to conduct the enrichment weeks, a continuous process of evaluation is required to maintain the program. Therefore, flexibility is required to administer the program.
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Wang, Bai, Liu, Zhang, Chen, and Lu. "Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area." International Journal of Environmental Research and Public Health 16, no. 23 (November 22, 2019): 4665. http://dx.doi.org/10.3390/ijerph16234665.

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An understanding of the enrichment mechanisms of cadmium (Cd) and arsenic (As) in the process of rock weathering and soil formation is essential to develop agriculture according to local conditions. However, the enrichments of soil Cd and As under natural background conditions in karst areas are still uncertain. The enrichment factor, geo-accumulation index, redundancy analysis, and other methods were used to analyze the enrichment degree and the influencing factors of Cd and As on 5 rock–soil profiles and 15 topsoil samples, which were collected from a karst forest area in Libo County, Guizhou Province. The results showed that the enrichment process was divided into three stages. In the first stage, Cd and As were enriched in carbonate rocks, and their mean concentrations were 1.65 and 3.9 times those of the corresponding abundance of the crust. In the second stage, the enrichment of the parent rock into the soil, the enrichment factors of Cd and As in the parent material horizon relative to the bedrock horizon were 9.2 and 2.82, respectively. The third stage refers to the enrichments of Cd and As in the topsoil, where Cd enrichment was more obvious than that of As. Soil organic matter (SOM) and phosphorus (P) are important factors that influenced the enrichments of Cd and As in the topsoil. The functional groups of SOM were complexed with Cd and As; P easily formed precipitates with Cd, and the tree litter was fed back to the topsoil, which may be the reason for the surface enrichment of Cd and As. This study will help the scientific community understand the enrichment mechanisms of soil Cd and As in karst areas.
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Dixon, LM, IJH Duncan, and GJ Mason. "The effects of four types of enrichment on feather-pecking behaviour in laying hens housed in barren environments." Animal Welfare 19, no. 4 (November 2010): 429–35. http://dx.doi.org/10.1017/s0962728600001913.

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AbstractSevere feather pecking, a potentially stereotypic behaviour in chickens (Gallus gallus), can be reduced by providing enrichment. However, there is little comparative information available on the effectiveness of different types of enrichment. Providing forages to birds is likely to decrease feather-pecking behaviour the most, as it is generally thought that feather pecking stems from re-directed foraging motivation. Yet, other types of enrichment, such as dustbaths and novel objects, have also been shown to reduce feather pecking. In order to develop a practical and effective enrichment, these different possibilities must be examined. Using a Latin Square Design, 14-week old birds were given each of four treatments: i) forages; ii) novel objects; iii) dustbaths; or iv) no enrichment. The amount of feather-pecking behaviour and the number of pecks to the enrichments were recorded. Results showed feather pecking to be highest when no enrichment was present and lowest when the forages were present, with the other two enrichments intermediate. This was despite the fact that the numbers of pecks birds gave to the forages and dustbaths were not significantly different, suggesting that they were similarly used. Thus, we suggest here that forage enrichments are most effective at alleviating feather pecking at least in the short term and attempts should be made to develop poultry housing that allows for natural foraging behaviour. Following this, providing any kind of enrichment will increase bird welfare and is therefore still beneficial.
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Sandilands, Victoria, Laurence Baker, Jo Donbavand, and Sarah Brocklehurst. "Do Hens Use Enrichments Provided in Free-Range Systems?" Animals 12, no. 8 (April 12, 2022): 995. http://dx.doi.org/10.3390/ani12080995.

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Hens in free-range systems are given enrichments to increase foraging and limit injurious pecking, but the efficacy of enrichment types requires investigation. We studied hen behaviour and feather cover in eight commercial free-range flocks each given access to four enrichments within the shed. Sheds were split into quarters, in which two enrichments (jute ropes (R) + other) were installed. Other enrichments were: lucerne hay bales (B), pecking blocks (PB), pelleted feed (PF), or further R (control). Hens were observed at three ages, at three times per age (−1, 0, ≥1 h relative to PF application), in 1 m diameter circle locations around ropes (ControlR), Enrich (B, PB, PF, R), and Away from each enrichment. Feather scores were recorded at all ages/times, at the Away location only. Significantly more birds were in Enrich locations where PB, B, and PF were available, and least near R, ControlR, and Away locations (p < 0.001). Proportions of birds interacting with enrichments were significantly higher for PB, B, and PF than R (p < 0.001), but enrichments did not generally affect proportions of birds foraging in the litter, apart from a significant decrease (p < 0.001) in PF birds foraging in the Enrich location because they were directing behaviour at PF instead. Feather scores worsened with age (p < 0.001) but were not consistently affected by enrichment. Enrichment replacement rates varied between farms. Enrichments costs were highest for PB and cheapest for R. Enrichments except R were used by hens, but with no obvious effect on feather cover. A balance has to be struck between enrichment benefits to hens and economics, but evidence suggested that hens did not benefit from R.
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Buijs, Stephanie, and Ramon Muns. "A Review of the Effects of Non-Straw Enrichment on Tail Biting in Pigs." Animals 9, no. 10 (October 18, 2019): 824. http://dx.doi.org/10.3390/ani9100824.

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Tail biting remains a common problem in pig production. As producers are reluctant to use straw to reduce this behaviour, we review studies on the effectiveness of other types of enrichment. Roughage, hessian sacks, compost, fresh wood, space dividers, rope, and providing new objects regularly can significantly reduce tail damage. These results should be interpreted with some caution, as often only one study per enrichment could be identified. No evidence was found that commonly applied enrichment objects (processed wood, plastic or metal) reduce tail biting significantly unless exchanged regularly, even though multiple studies per type of enrichment were identified. Many studies evaluated the duration of enrichment use, but few evaluated the manner of use. This hampers identification of combinations of enrichment that will satisfy the pig’s motivation to eat/smell, bite, root and change enrichments, which is suggested to reduce tail biting. New objects designed to satisfy specific motivations were shown to receive high levels of interaction, but their effectiveness at reducing tail damage remains unknown. More in-depth study of how pigs interact with non-straw enrichment, which motivations this satisfies and how this affects behaviour towards conspecifics, is necessary to optimize enrichment strategies. Optimization is necessary because ceasing tail docking in a way that improves pig welfare requires more effective enrichments than those described in this review, or alternatively, better control over other factors influencing tail biting.
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Álvarez-Vázquez, Miguel Ángel, Elena De Uña-Álvarez, Alexandra María Ramírez-Pérez, Esther de Blas, and Ricardo Prego. "Distinctive Accumulation Patterns of Trace Elements in Sediments of Bedrock Rivers (Miño River, NW Iberian Peninsula)." Geosciences 13, no. 10 (October 19, 2023): 315. http://dx.doi.org/10.3390/geosciences13100315.

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Sediment compositions and enrichment patterns are investigated in an urban reach of a bedrock river, the Miño River passing through Ourense City, Spain. This study focuses on the trace element distribution in different fractions to gain insights into trace element enrichment. To assess enrichment, a context-specific approach was employed, based on the mean, the standard deviation of the estimated background, and the empirical rule, avoiding the pitfalls of general and arbitrary thresholds. Notably, the <0.063 mm and <2 mm fractions showed differential accumulation patterns. Both fractions serve to detect enrichments that can be indicative of contamination, but they measure different things, the maturity of sediments and postdepositional processes being key factors in understanding the sediment composition and enrichments. These findings also highlight the role of rock cavities, particularly those hosting permanent deposits, as traps for trace elements and their potential significance in assessing environmental enrichment. This work contributes to understanding sediment compositions and enrichment dynamics in bedrock rivers. It also underscores the significance of considering site-specific approaches for enrichment assessment and the necessity for further research to unravel the mechanisms driving differential accumulation within distinct depositional environments.
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JIANG, G. C., DONG-HYUN KANG, and DANIEL Y. C. FUNG. "Enrichment Procedures and Plating Media for Isolation of Yersinia enterocolitica†." Journal of Food Protection 63, no. 11 (November 1, 2000): 1483–86. http://dx.doi.org/10.4315/0362-028x-63.11.1483.

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A shortened enrichment procedure (25°C for 24 h) was compared with cold enrichment procedures (4°C for 1 to 3 weeks) and direct plating for isolation of Yersinia enterocolitica from commercial ground meat samples. The combined data of all recovery procedures showed that this organism was isolated from 34% of the ground beef samples. The highest isolation rate was 32% for the 4°C/3-week enrichment, followed by 28% for the 4°C/2-week enrichment, 26% for the 25°C/24-h enrichment, 22% for the 4°C/1-week enrichment, and 10% for direct plating. No significant differences (P &gt; 0.05) in isolation rate occurred between the 4°C/3-week, 4°C/2-week, 25°C/24-h, and 4°C/1-week enrichments. The combined data of all recovery procedures showed that Y. enterocolitica was isolated from 64% of ground pork samples. The highest isolation rate was 48% for the 4°C/3-week enrichment, followed by 40% for the 25°C/24-h enrichment, 34% for the 4°C/2-week enrichment, 24% for the 4°C/1-week enrichment, and 24% for direct plating. No significant differences (P &gt; 0.05) in isolation rate occurred between the 4°C/3-week, 25°C/24-h, and 4°C/2-week enrichments. During the plating phase of the experiment, the efficiency of a dye-containing, Yersinia-selective medium (KV202) was compared with that of a commercially available cefsulodin-irgasan-novobiocin medium. Recovery rates were similar for both media. However, KV202 agar differentiated Y. enterocolitica from such contaminating bacteria as Enterobacter, Serratia, and Salmonella by colony morphologic characteristics and color.
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Dissertations / Theses on the topic "Enrichment"

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Lodder, A. V. M. "Principles of enrichment in the laws of unjust enrichment." Thesis, University of Oxford, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.543649.

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Ball, Eli Byron Stuart. "Enrichment at the claimant's expense : attribution rules in unjust enrichment." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:dc066712-fd0c-4d4f-81ad-dfbbb1805acf.

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This thesis presents an account of attribution in unjust enrichment. Attribution refers to how and when two parties – a claimant and a defendant – are relevantly connected to each other for unjust enrichment purposes. It is reflected in the familiar expression that a defendant be 'enriched at the claimant's expense'. This thesis presents a structured account of attribution, consisting of two requirements: first, the identification of an enrichment to the defendant and a loss to the claimant; and, secondly, the identification of a connection between that enrichment and that loss. These two requirements must be kept separate from other considerations often subsumed within the expression 'enrichment at the claimant's expense' which in truth have nothing to do with attribution, and which instead qualify unjust enrichment liability for reasons that should be analysed in their own terms. The structure of attribution so presented fits a normative account of unjust enrichment based upon each party's exchange capacities. A defendant is enriched when he receives something that he has not paid for under prevailing market conditions, while a claimant suffers a loss when he loses the opportunity to charge for something under the same conditions. A counterfactual test – asking whether enrichment and loss arise 'but for' each other – provides the best generalisation for testing whether enrichment and loss are connected, thereby satisfying the requirements of attribution in unjust enrichment. The law is stated as at 15 March 2014.
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Hubert, Ilona. "Enrichment bei Laborhunden." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-26892.

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Disque, J. Graham. "Marriage Enrichment Workshop." Digital Commons @ East Tennessee State University, 1997. https://dc.etsu.edu/etsu-works/2847.

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Olofsson, Nils. "Kidney Dynamic Model Enrichment." Thesis, Uppsala universitet, Avdelningen för visuell information och interaktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-242315.

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This thesis explores and explains a method using discrete curvature as a feature to find regions of vertices that can be classified as being likely to indicate the presence of an underlying tumor on a kidney surface mesh. Vertices are tagged based on curvature type and mathematical morphology is used to form regions on the mesh. The size and location of the tumor is approximated by fitting a sphere to this region. The method is intended to be employed in noninvasive radiotherapy with a dynamic soft tissue model. It could also provide an alternative to volumetric methods used to segment tumors. A validation is made using the images from which the kidney mesh was constructed, the tumor is visible as a comparison to the method result. The dynamic kidney model is validated using the Hausdorff distance and it is explained how this can be computed in an effective way using bounding volume hierarchies. Both the tumor finding method and the dynamic model show promising results since they lie within the limit used by practitioners during therapy.
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Ried, Janina S. "Phenotype set enrichment analysis." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-158079.

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Shah, Rajiv Eric. "Reasons for unjust enrichment." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/290112.

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Birks' unjust enrichment formula was intended to provide a common descriptive structure to all the instances where there was recovery. He did not, however, engage in an analysis of the various reasons why courts awarded restitution. My thesis seeks to fill this gap. I argue that without such an account Birks work is incomplete. According to Birks, for example, money and services both amounted to enrichments and so should be considered together. But there are some differences and similarities between money and services. In order to be able to group them together Birks needs to be able to say that the reasons for giving recovery in money and service cases are similar enough that they can be grouped together. The same goes for all the unjust factors. The point is, the generalisation that Birks sought to do, can only properly be done if one is attuned to the reasons why recovery is granted in each of those cases. If the reasons are similar then the generalisation makes sense. But if they are not then it does not make sense to so generalise. The argument of the thesis is that there three relevant principles to justifying unjust enrichment: the Property Principle, the Benefit-Burden Principle and the Autonomy Principle. The Property Principle states that one should not have property belonging to another. The Benefit-Burden Principle states that if one takes a benefit then one must bear the associated burdens; to put it more colloquially: you have to take the rough with the smooth. These first two principles provide reasons for considering a situation to be defective and the last principle provides a constraint for the operation of the first two. It is there to ensure that the imposition of liability will not unduly affect the autonomy of the defendant. Based on that the thesis proposes that the scope of the unjust enrichment formula be trimmed down to only cover defective transfers of money and other assets. For the other cases, a different analytical structure is needed. This is because the reasons for recovery in those cases are different.
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Syed, Abeer. "Microsystems for parasite enrichment." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4353/.

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The aim of this project was to develop a lab-on-chip platform upon which activities in engineering and parasitology can be brought together to create new low cost diagnostic technologies for Human African Trypanosomiasis, a disease also known as sleeping sickness, for use in resource-poor environments like Sub-Saharan Africa. Filtration and separation of particles is essential for many biochemical and analytical assays. This work describes the development of novel techniques to enhance the separation/enrichment of parasites from whole blood. Techniques like chemotaxis, inertial microfluidics and density based separation were used to achieve the separation/enrichment. This thesis describes (i) development of an assay to confirm the chemotaxis of Trypanosoma brucei towards higher concentrations of glucose, (ii) designing, fabrication and use of inertial microfluidic device for continuous sorting of trypanosomes from blood cells, (iii) density based separation of trypanosomes from whole blood using a two phase Dextran-Ficoll system, and (iv) density based enrichment of trypanosomes using surface acoustic waves. This work represents an important step towards improving the detection of trypanosomes in blood for which microscopy is still considered to be the gold standard.
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Terrés, Villalonga Pilar. "Substructural Logics and Pragmatic Enrichment." Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/668507.

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In this dissertation, we argue for a Pragmatic Logical Pluralism, a pluralist thesis about logic which endorses Classical, Relevant, Linear, and Ordered logic. We justify that the formal languages of these four logics are legitimate codifications of the logical vocabulary and capture legitimate senses of logical consequence. This will be justified given a particular interpretation of the four formal languages: logical consequence and conditional, disjunction, and conjunction of the four different logics codify different and legitimate senses of ‘follows from’, ‘if...then’, ‘or’ and ‘and’ which diverge in their different pragmatic enrichments. The dissertation is twofold. First, we will explore the effect that the lack of structural rules has on logical connectives, in four substructural logics, and its connection with certain pragmatic enrichments. Second, we will defend a pluralist thesis according to which pragmatics has an important role for capturing the inferential role of logical vocabulary, both of the notions of ‘follows from’ and the logical constants, although classical logic preserves truth and captures their lit- eral meaning. In sum, we defend a version of logical pluralism based on the plurality of legitimate translations from natural language to formal languages, arguing that more than one translation is legitimate for logical vocabulary, which makes it possible to adopt more than one logic.
En aquesta tesi presentem el Pluralisme Lògic Pragmàtic, una tesi pluralista sobre la lògica que accepta les lògiques Clàssica, Rellevant, Lineal i Ordenada. Justifiquem que els llenguatges formals d’aquestes quatre lògiques són codificacions legítimes del vocabulari lògic i capturen sentits legítims de la conseqüència lògica. Això es justificarà donant una interpretació particular dels quatre llenguatges formals: la conseqüència lògica i el condicional, la disjunció i la conjunció de les quatre lògiques acceptades codifiquen diferents i legítims sentits de ‘si...llavors’, ‘o’ i ‘i’, que es distingeixen pels diferents enriquiments pragmàtics que codifiquen. La tesi té dos vessants. Primer, explorem l’efecte que la falta de regles estructurals té en les connectives lògiques de les quatre lògiques presentades, i la seva connexió amb certs enriquiments pragmàtics. Segon, defensem una visió pluralista segons la qual la pragmàtica juga un rol important a l’hora de capturar el rol inferencial del vocabulari lògic, tant per la noció de conseqüència lògica com per les connectives, tot i que la lògica clàssica preserva la veritat i captura el seu significat literal. En resum, defensem una versió del pluralisme lògic basat en la pluralitat de traduccions legítimes del llenguatge natural al llenguatge formal, argumentant que més d’una traducció és legítima pel vocabulari lògic, la qual cosa ens permet adoptar més d’una lògica.
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King, Lesley Anne. "Environmental enrichment for broiler breeders." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249541.

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Books on the topic "Enrichment"

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Warhaftig, Itamar. Unjust enrichment. Tel Aviv: Open University of Israel, 1999.

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Unjust enrichment. Oxford: Oxford University Press, 2003.

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Bar, Christian von. Unjustified enrichment. New York: Oxford University Press, 2010.

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Unjustified enrichment. 2nd ed. Edinburgh: W. Green/Thomson Reuters, 2009.

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Institute, Scottish Universities Law, ed. Unjustified enrichment. Edinburgh: Thomson/W. Green, 2003.

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Unjustified enrichment. Cape Town: Juta, 2008.

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Unjustified enrichment. Edinburgh: W. Green, 2013.

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Ross, Grantham, ed. Unjust enrichment. Chatswood, Australia: LexisNexis Butterworths, 2008.

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Freeman, Sara. Enrichment activities. Edited by Crutcher Kaori and Frank Schaffer Publications. Torrance, CA: Frank Schaffer Pub., 1994.

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Unjust enrichment. 2nd ed. Oxford: Oxford University Press, 2005.

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Book chapters on the topic "Enrichment"

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Megahey, Alan. "Enrichment." In A School in Africa, 192–203. London: Palgrave Macmillan UK, 2005. http://dx.doi.org/10.1057/9780230288119_13.

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Hall, Alison. "Enrichment." In The Routledge Handbook of Pragmatics, 341–53. Milton Park, Abingdon, Oxon ; New York, NY : Routledge, [2017] | Series: Routledge Handbooks in applied linguistics: Routledge, 2017. http://dx.doi.org/10.4324/9781315668925-26.

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Banks, Ron E., Julie M. Sharp, Sonia D. Doss, and Deborah A. Vanderford. "Enrichment." In Exotic Small Mammal Care and Husbandry, 11–19. Ames, Iowa, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119265405.ch2.

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Stephens, Kristen R. "Enrichment." In Introduction to Gifted Education, 201–26. 2nd ed. New York: Routledge, 2022. http://dx.doi.org/10.4324/9781003235866-17.

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Betts, George T., Robin J. Carey, and Blanche M. Kapushion. "Enrichment." In Autonomous Learner Model Resource Book, 187–242. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003233183-6.

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Stephens, Kristen R. "Enrichment." In Introduction to Gifted Education, 213–36. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003235859-17.

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Kemp, Caralyn. "Enrichment." In Nonhuman Primate Welfare, 463–500. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-82708-3_20.

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Renzulli, Joseph S., Marcia Gentry, and Sally M. Reis. "Seven Steps to Implementing An Enrichment Cluster Program." In Enrichment Clusters, 37–59. 2nd ed. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003234999-3.

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Renzulli, Joseph S., Marcia Gentry, and Sally M. Reis. "How to Develop Your Own Enrichment Cluster." In Enrichment Clusters, 61–83. 2nd ed. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003234999-4.

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Renzulli, Joseph S., Marcia Gentry, and Sally M. Reis. "What in an Enrichment Cluster?" In Enrichment Clusters, 17–35. 2nd ed. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003234999-2.

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Conference papers on the topic "Enrichment"

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Vallina-Rodriguez, Narseo, Srikanth Sundaresan, Christian Kreibich, and Vern Paxson. "Header Enrichment or ISP Enrichment?" In the 2015 ACM SIGCOMM Workshop. New York, New York, USA: ACM Press, 2015. http://dx.doi.org/10.1145/2785989.2786002.

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Abd El Gawad, K., and Yushou Song. "Uranium Enrichment Measurement Using Enrichment-Meter Approach." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-82101.

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The 235U enrichment is one of the most important characteristics of nuclear materials for nuclear safeguards purposes. The multi-group γ-ray analysis method for uranium (MGAU) is an important non-destructive gamma spectroscopy method for 235U enrichment determination. Using that method, the typical measurement bias is below 3% for uranium material with abundance from 0.3 to 93 %. However, it is not applicable for the samples with thick container or without isotopic decay equilibrium. In this work, the enrichment meter method was studied with two uranium dioxide samples (235U abundance 0.71 % and 3.167 %). The nuclear materials spectra were measured using a planar high-purity germanium detector. Based on the specific gamma peak (185.71 keV) of relative high intensity, this traditional enrichment meter approach gives measurement bias more than 10 %. Thus, this work represents two objects: (1) an alternative approach which was investigated, where the calibration is performed through Monte Carlo simulation (MCNP5) instead of experiment in advance, as the measurement bias was reduced to be around 5 %. Thus, to use this approach, one should have the sample details, such as dimensions, chemical composition and container. (2) The influence of the container wall thickness on the measurement accuracy by Monte Carlo simulation. So, if the container wall thickness is not modeled correctly the measurement accuracy is influenced, which is investigated by simulation.
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Hosseini, Seyed Abolfazl, and Naser Vosoughi. "Sensitivity Analysis of Kinetics Parameters of Tehran Research Reactor (TRR)." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75523.

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In this research, effective delayed neutron fraction (βeff) and neutron generation time (Λ) of the Tehran Research Reactor (TRR) are calculated for different uranium enrichments from 14.84 w/o to 96.56 w/o U235 in two states of the TRR, (cold fuel, clad and coolant temperature of 20 °C; and hot fuel, clad and coolant temperature of 65, 49 and 44 °C, respectively) using the MTR_PC computer code. Comparative analysis shows that both βeff and Λ increase as fuel enrichment decreases. However, variation rate of βeff is not the same in two conditions. βeff in the hot state is larger than those calculated in the cold state when fuel enrichment goes more than 83.91%, while the situation is reverse for enrichment less than that. The obtained neutron generation time shows normal behavior for all different fuel enrichments. The variables involved in kinetics parameters calculations (i.e., neutron fission cross section, fuel enrichment, etc.) are investigated theoretically to confirm the results of calculations in cold and hot states. Variations of βeff and Λ with fuel burnup are studied too.
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Scott, Michael James, and Gheorghita Ghinea. "Measuring enrichment." In the tenth annual conference. New York, New York, USA: ACM Press, 2014. http://dx.doi.org/10.1145/2632320.2632350.

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Younas, Tanzila, Sarmad Hameed, Saud Sattar, Syed Ahmer Hussain Quadri, Usman Saeed, and Ali Asghar Modi. "Enrichment of Uranium." In 2018 IEEE 5th International Conference on Engineering Technologies and Applied Sciences (ICETAS). IEEE, 2018. http://dx.doi.org/10.1109/icetas.2018.8629209.

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"Physical enrichment processing." In The 8th International Mineral Processing Symposium. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.4324/9780203747117-17.

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Spretke, David, Peter Bak, Halldor Janetzko, Bart Kranstauber, Florian Mansmann, and Sarah Davidson. "Exploration through enrichment." In the 19th ACM SIGSPATIAL International Conference. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/2093973.2094038.

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Church, Karen, and Barry Smyth. "Mobile content enrichment." In the 12th international conference. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1216295.1216320.

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Ianakiev, K. D., B. S. Alexandrov, B. D. Boyer, T. R. Hill, D. W. MacArthur, T. A. Marks, C. E. Moss, et al. "New generation enrichment monitoring technology for gas centrifuge enrichment plants." In 2008 IEEE Nuclear Science Symposium and Medical Imaging conference (2008 NSS/MIC). IEEE, 2008. http://dx.doi.org/10.1109/nssmic.2008.4775001.

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Omarova, Gulnara. "FLOTATION ENRICHMENT OF ENRICHMENT FACTORY TAILINGS FOR USE AS TECHNOGENIC ORE." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/1.1/s01.024.

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Reports on the topic "Enrichment"

1

Demuth, Scott F., and Alexis Chanel Trahan. Uranium Enrichment Safeguards. Office of Scientific and Technical Information (OSTI), June 2017. http://dx.doi.org/10.2172/1367804.

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Karpius, Peter Joseph. Uranium Conversion & Enrichment. Office of Scientific and Technical Information (OSTI), February 2017. http://dx.doi.org/10.2172/1342875.

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Skone, Timothy J. Nuclear Enrichment Facility Construction. Office of Scientific and Technical Information (OSTI), October 2010. http://dx.doi.org/10.2172/1509109.

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Cavin, W. S. Tank 41H bounding uranium enrichment. Office of Scientific and Technical Information (OSTI), July 1994. http://dx.doi.org/10.2172/10188223.

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Skone, Timothy J. Gas Centrifuge Uranium Enrichment, Operations. Office of Scientific and Technical Information (OSTI), May 2013. http://dx.doi.org/10.2172/1509064.

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Skone, Timothy J. Gaseous Diffusion Enrichment Facility, Decommissioning. Office of Scientific and Technical Information (OSTI), November 2010. http://dx.doi.org/10.2172/1509065.

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Skone, Timothy J. Gaseous Diffusion Uranium Enrichment, Operations. Office of Scientific and Technical Information (OSTI), November 2010. http://dx.doi.org/10.2172/1509066.

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Skone, Timothy J. Uranium, Production with EU Enrichment. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1509335.

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Skone, Timothy J. Uranium, Production with US Enrichment. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1509336.

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Sandhu, S. S. Student Science Enrichment Training Program. Office of Scientific and Technical Information (OSTI), December 1990. http://dx.doi.org/10.2172/87094.

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