Results 41 to 50 of about 964,719 (311)
A Formalization of SQL with Nulls
Journal of Automated Reasoning, 2022 AbstractSQL is the world’s most popular declarative language, forming the basis of the multi-billion-dollar database industry. Although SQL has been standardized, the full standard is based on ambiguous natural language rather than formal specification.
Wilmer Ricciotti, James Cheney
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Exploring the Relationship Between Post-Modernism and the Political [PDF]
Faṣlnāmah-i Pizhūhish/hā-yi Rāhburdī-i Siyāsat, 2019 Postmodernism, as the current which has emerged out of developments in the modern world, and by enjoying the critical discourse of modernity, has created many effects on various spheres, including in the political arena. In this research, by raising this
مسعود اخوان کاظمی +1 more
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An Analytical field study on the Principles of Sustainability in the Interior Design of Modern Egyptian Buildings [PDF]
Journal of Architecture, Art & Humanistic Science, 2022 The world is constantly moving towards environmental-friendliness, and there are plenty of modern concepts that attempt to link architecture and the environment, in previous as well as current times.
Najla Yousif +2 more
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تأثیر امواج فراصوت بر جوانهزنی، فعالیت آنزیمهای آلفاآمیلاز و آنتیاکسیدان، قندها و کلروفیل در سرخارگل [PDF]
Pizhūhish/hā-yi tulīd-i giyāhī, 2019 سابقه و هدف: جوانهزنی سریع، یکنواخت و کامل بذرها باعث سبز شدن مطلوب و رشد اولیهی سریع گیاه میشود. رشد اولیهی مطلوب سبب دریافت بیشتر تشعشع خورشیدی و افزایش عملکرد میگردد. جوانهزنی بذور سرخارگل کم و نامنظم میباشد.
سیده فاطمه رسولی +3 more
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Assessment of Behavior Factor for Steel Plate Shear Wall with Reinforced Concrete Moment Surrounded Frame [PDF]
Journal of Structural and Construction Engineering, 2019 The steel shear wall is an appropriate resistant system against lateral loads that is been utilized in modern high-rise buildings and upgrading existing buildings because of numerous benefits.
Madjid Gholhaki +2 more
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Theoretical Computer Science, 1986 A nonapplicable null appears in a relation whenever the value of the corresponding attribute does not exist. In order to evaluate a query on a relation r involving such null values, the information contained in r is represented by a set of null-free instances, then the query on r - expressed in a user-friendly query language (Generalized Relational ...
Nadine Lerat, Witold Lipski Jr.
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The effect of thermal stresses on the immune system of the potato tuber moth, Phthorimaea operculella (Lepidoptera: Gelechiidae) [PDF]
نامه انجمن حشرهشناسی ایران, 2018 The hemocytes of insects are one of important components of immune system of insects against various stresses such as pathogens attack, parasitoids, starvation period and temperature changes.
z. Pourali, Maryam Ajam Hassani
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Universal (and Existential) Nulls [PDF]
Fundamenta Informaticae, 2019 Incomplete Information research is quite mature when it comes to so called existential nulls, where an existential null is a value stored in the database, representing an unknown object. For some reason universal nulls, that is, values representing all possible objects, have received almost no attention.
Gösta Grahne, Ali Moallemi
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Symmetries and charges of general relativity at null boundaries [PDF]
Journal of High Energy Physics, 2018 We study general relativity at a null boundary using the covariant phase space formalism. We define a covariant phase space and compute the algebra of symmetries at the null boundary by considering the boundary-preserving diffeomorphisms that preserve ...
V. Chandrasekaran +2 more
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