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Progress in Commutative Algebra 2. Closures, Finiteness and Factorization

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Book Series: De Gruyter Proceedings in Mathematics ISBN: 9783110278606 Year: Pages: 325 DOI: 10.1515/9783110278606 Language: English
Publisher: De Gruyter Grant: Knowledge Unlatched - 102373
Subject: Mathematics
Added to DOAB on : 2019-04-25 11:21:03
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This is the second of two volumes of a state-of-the-art survey article collection which originates from three commutative algebra sessions at the 2009 Fall Southeastern American Mathematical Society Meeting at Florida Atlantic University. The articles reach into diverse areas of commutative algebra and build a bridge between Noetherian and non-Noetherian commutative algebra. These volumes present current trends in two of the most active areas of commutative algebra: non-noetherian rings (factorization, ideal theory, integrality), and noetherian rings (the local theory, graded situation, and interactions with combinatorics and geometry). This volume contains surveys on aspects of closure operations, finiteness conditions and factorization. Closure operations on ideals and modules are a bridge between noetherian and nonnoetherian commutative algebra. It contains a nice guide to closure operations by Epstein, but also contains an article on test ideals by Schwede and Tucker and one by Enescu which discusses the action of the Frobenius on finite dimensional vector spaces both of which are related to tight closure. Finiteness properties of rings and modules or the lack of them come up in all aspects of commutative algebra. However, in the study of non-noetherian rings it is much easier to find a ring having a finite number of prime ideals. The editors have included papers by Boynton and Sather-Wagstaff and by Watkins that discuss the relationship of rings with finite Krull dimension and their finite extensions. Finiteness properties in commutative group rings are discussed in Glaz and Schwarz's paper. And Olberding's selection presents us with constructions that produce rings whose integral closure in their field of fractions is not finitely

Reduction of Environmental Distraction to Facilitate Cognitive Performance

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889194476 Year: Pages: 94 DOI: 10.3389/978-2-88919-447-6 Language: English
Publisher: Frontiers Media SA
Subject: Psychology --- Science (General)
Added to DOAB on : 2016-02-05 17:24:33
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When faced with a difficult task, people often look at the sky or close their eyes. This behavior is functional: the reduction of distractions in the environment can improve performance on cognitive tasks, including memory retrieval. Reduction of visual distractions can be operationalized through eye-closure, gaze aversion, or by comparing exposure to simple and complex visual displays, respectively. Reduction of auditory distractions is typically examined by comparing performance under quiet and noisy conditions. Theoretical reasoning regarding this phenomenon draws on various psychological principles, including embodied cognition, cognitive load, and modality-specific interference. Practical applications of the research topic are diverse. For example, the findings could be used to improve performance in forensic settings (e.g., eyewitness testimony), educational settings (e.g., exam performance), occupational settings (e.g., employee productivity), or medical settings (e.g., medical history reporting). This Research Topic welcomes articles from all areas of psychology relating to the reduction of distractions to improve task performance. Articles can address (but are not limited to) new empirical findings, comprehensive reviews, theoretical frameworks, opinion pieces, or discussions of practical applications.

Geflüchtete im Betrieb

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Book Series: Forschung aus der Hans-Böckler-Stiftung ISBN: 9783839452042 Year: Pages: 252 DOI: 10.14361/transcript.9783839452042 Language: German
Publisher: transcript Verlag
Subject: History --- Migration
Added to DOAB on : 2020-05-04 10:26:28
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Chapter Introduction (Book chapter)

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ISBN: 9781003058137 Year: Pages: 19 Language: English
Publisher: Taylor & Francis
Subject: History
Added to DOAB on : 2020-12-23 00:11:45
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While the opening of Kaduna Textiles Limited in 1957 represented the encouraging beginning of the industrialization of Kaduna, its closure in 2002 had significant consequences for workers and their families. Without payment of their termination entitlements, former KTL workers, wives, and widows met to establish the Coalition of Closed Unpaid Textiles Workers of Nigeria. Compiling a list of the names of deceased KTL workers, they hoped that “the work of the dead” would put pressure on government to pay their entitlements. For former KTL employees, their new ways of thinking about work, labor organization, time, money, and health were challenged by deindustrialization, while the lives of their widows and children were shattered by the loss of their husbands and fathers. Widows buried their husbands and subsequently worked to provide their children with education, housing, and food, while their children had various responses to their families’ declining economic situation. As such, deindustrialization in Kaduna, as elsewhere in the world, has contributed to unemployment, poverty, hunger, illness, and death. While remittances for dismissed KTL workers remain unpaid and the mill has not reopened, the Coalition’s listing of the names of the dead continues as a constant reminder of their society’s injustice.

Chapter Conclusion (Book chapter)

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ISBN: 9781003058137 Year: Pages: 19 Language: English
Publisher: Taylor & Francis
Subject: History
Added to DOAB on : 2020-12-23 00:12:04
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"Many of the men who worked at KTL who have died since the closing of the Kaduna Textiles Limited mill without being paid their entitlements have had their names included on the list compiled by the Coalition of Unpaid Textile Workers Nigeria. This listing of names, along with their graves, funeral programs, and death certificates constitute “the work of the dead” in redressing some of the failures of their government and their society. The lack of food and health care, the minimum requirements needed for a decent life, suggest the need for new ways of thinking about the growing disparity in wealth—with ever greater inequality—in Nigeria. While this situation may be lessened through the reduction of corruption and through government programs for widespread food, health care, and education may be implemented, many Nigerians are considering the creation of alternative paths to well-being. Through the numerous programs proposed for increasing youth employment —training and support for small and medium enterprises, agricultural programs, and more efficient and environmentally sound smaller-scale industries, the possibilities for a new deindustrialized era are being imagined and may be pursued. "

Chapter 2 New work-time regimes (Book chapter)

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ISBN: 9781003058137 Year: Pages: 22 Language: English
Publisher: Taylor & Francis
Subject: History
Added to DOAB on : 2020-12-23 00:12:29
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The production of manufactured textiles at the Kaduna Textile Limited mill was an important development which led to the employment of many men from the small ethnic groups in southern Kaduna and Middle Belt states. The KTL Handbook, which workers received, laid out work rules which emphasized the importance of being on time. This aspect of industrial labor—the importance of keeping to time with clocks and watches—differed from many workers’ earlier experience of agricultural work. Yet despite KTL workers’ acceptance of the new work and time regime, the closure of the mill due to irregular electricity, antiquated equipment, and lack of government support led many to return to agricultural labor or to service employment in the city. For those preferring to remain in Kaduna, the difficulties of living without regular income and access to food and health care has contributed to the many health problems experienced by former KTL workers and their subsequent deaths.

Beverage Sensory Modification

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ISBN: 9783039213931 9783039213948 Year: Pages: 104 DOI: 10.3390/books978-3-03921-394-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2019-12-09 11:49:15
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This Special Issue on “Beverage Sensory Modification” presents a series of articles that feature the broad sense of sensory modification with regards to beverages, either by improving their flavor, taste, and mouthfeel properties, or through prevention of spoilage. The scope goes further than the usual technological measures that modulate sensory properties and includes psychological and cross-modal influences, where the sensory modification occurs in the subject’s brain rather than as a result of modified physical–chemical properties of objects.

Improved Reservoir Models and Production Forecasting Techniques for Multi-Stage Fractured Hydrocarbon Wells

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ISBN: 9783039218929 9783039218936 Year: Pages: 238 DOI: 10.3390/books978-3-03921-893-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-01-07 09:08:26
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The massive increase in energy demand and the related rapid development of unconventional reservoirs has opened up exciting new energy supply opportunities along with new, seemingly intractable engineering and research challenges. The energy industry has primarily depended on a heuristic approach—rather than a systematic approach—to optimize and tackle the various challenges when developing new and improving the performance of existing unconventional reservoirs. Industry needs accurate estimations of well production performance and of the cumulative estimated ultimate reserves, accounting for uncertainty. This Special Issue presents 10 original and high-quality research articles related to the modeling of unconventional reservoirs, which showcase advanced methods for fractured reservoir simulation, and improved production forecasting techniques.

Current Trends on Monomial and Binomial Ideals

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ISBN: 9783039283606 9783039283613 Year: Pages: 140 DOI: 10.3390/books978-3-03928-361-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Mathematics --- Science (General)
Added to DOAB on : 2020-04-07 23:07:09
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Historically, the study of monomial ideals became fashionable after the pioneering work by Richard Stanley in 1975 on the upper bound conjecture for spheres. On the other hand, since the early 1990s, under the strong influence of Gröbner bases, binomial ideals became gradually fashionable in commutative algebra. The last ten years have seen a surge of research work in the study of monomial and binomial ideals. Remarkable developments in, for example, finite free resolutions, syzygies, Hilbert functions, toric rings, as well as cohomological invariants of ordinary powers, and symbolic powers of monomial and binomial ideals, have been brought forward. The theory of monomial and binomial ideals has many benefits from combinatorics and Göbner bases. Simultaneously, monomial and binomial ideals have created new and exciting aspects of combinatorics and Göbner bases. In the present Special Issue, particular attention was paid to monomial and binomial ideals arising from combinatorial objects including finite graphs, simplicial complexes, lattice polytopes, and finite partially ordered sets, because there is a rich and intimate relationship between algebraic properties and invariants of these classes of ideals and the combinatorial structures of their combinatorial counterparts. This volume gives a brief summary of recent achievements in this area of research. It will stimulate further research that encourages breakthroughs in the theory of monomial and binomial ideals. This volume provides graduate students with fundamental materials in this research area. Furthermore, it will help researchers find exciting activities and avenues for further exploration of monomial and binomial ideals. The editors express our thanks to the contributors to the Special Issue. Funds for APC (article processing charge) were partially supported by JSPS (Japan Society for the Promotion of Science) Grants-in-Aid for Scientific Research (S) entitled ""The Birth of Modern Trends on Commutative Algebra and Convex Polytopes with Statistical and Computational Strategies"" (JP 26220701). The publication of this volume is one of the main activities of the grant.

Advanced Approaches Applied to Materials Development and Design Predictions

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ISBN: 9783039284122 9783039284139 Year: Pages: 164 DOI: 10.3390/books978-3-03928-413-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: General and Civil Engineering --- Technology (General)
Added to DOAB on : 2020-04-07 23:07:09
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This thematic issue on advanced simulation tools applied to materials development and design predictions gathers selected extended papers related to power generation systems, presented at the XIX International Colloquium on Mechanical Fatigue of Metals (ICMFM XIX), organized at University of Porto, Portugal, in 2018. In this issue, the limits of the current generation of materials are explored, which are continuously being reached according to the frontier of hostile environments, whether in the aerospace, nuclear, or petrochemistry industry, or in the design of gas turbines where efficiency of energy production and transformation demands increased temperatures and pressures. Thus, advanced methods and applications for theoretical, numerical, and experimental contributions that address these issues on failure mechanism modeling and simulation of materials are covered. As the Guest Editors, we would like to thank all the authors who submitted papers to this Special Issue. All the papers published were peer-reviewed by experts in the field whose comments helped to improve the quality of the edition. We also would like to thank the Editorial Board of Materials for their assistance in managing this Special Issue.

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