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Complexity Column

ACM SIGLOG News, 2022
Descriptive complexity theory initiated by celebrated Fagin's theorem aims to characterize complexity classes by the kind of logic necessary to express problems in the class. For many complexity classes such a characterization has been found; this includes the class NP that, according to Fagin's theorem, can be characterized by the monadic second order
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Column Overload in PLOT Columns

LCGC North America, 2022
Injecting too much sample onto a chromatographic system will eventually overload the column. Analytical chemists are concerned about column overloading because it reduces column efficiency, and, as a result, the resolution is sacrificed. Surprisingly, there is little data in the literature about the overloading of the porous layer open tubular (PLOT ...
Katarina Oden, Jaap de Zeeuw
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Effect of Column Pressure on Column Efficiency

Nature, 1964
IN a recent communication given by Amos and Hurrell1, the authors stated that it was difficult to obtain high efficiencies or adequate resolving power, when packed 0.25-in. external diameter (4 mm internal diameter) analytical chromatographic columns were used in association with thermal conductivity detectors.
I A, FOWLIS, R J, MAGGS, T E, YOUNG
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The Lateral Column

Clinics in Podiatric Medicine and Surgery, 2020
Lower extremity biomechanics is the cornerstone of podiatric medicine and surgery. The foot and ankle act as the interface between the ground and proximal segments, mediating internal and external moments Although the medial longitudinal arch has been widely researched, the details of the lateral longitudinal arch are less extensively delineated.
Beth, Jarrett   +2 more
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Verification Column

ACM SIGLOG News, 2023
Many verification problems can be formulated as a language inclusion problem where the task is to decide whether the language of the system model (given by the runs of the system) is contained in the language induced by a logical specification. The corresponding verification problem for non-functional properties is the quantitative inclusion problem ...
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Columns and Beam Columns

2013
The stability phenomenon of a structure is defined by its state of equilibrium. The equilibrium of a designed structure is stable if small imperfections or defects will cause correspondingly small deviations from the idealized operating condition.
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A column about columns

Campus Security Report
I was chatting with my youngest son the other day while driving him to wrestling practice and playing “Daddy Uber.” I mentioned to him that I needed to work on writing my column, and he asked me what it was about. I mentioned I had a few ideas, but there were so many things going on in higher education, many that I have written extensively about, that ...
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Environment column

New Library World, 1991
Looks at the environmental movement′s attitude to information provision in the context of other sources of environmental information. Reports on new initiatives in the provision of computerised systems for environmental organisations and on environmental information centres.
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Coventina's Column

Scottish Medical Journal, 2008
Another month, another medical implant panic. Scarcely had the public calmed down after the poly implant prothese breast implants furore than another news story emerges of foreign bodies inserted therapeutically into people’s bodies causing iatrogenic harm. This time it is metal-onmetal hip implants (i.e.
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