ATLAS Event Store and I/O developments in support for Production and Analysis in Run 3

During the long LHC shutdown, ATLAS experiment is preparing several fundamental changes to its offline event processing framework and analysis model. These include moving to multi-threaded reconstruction and simulation and reducing data duplication during derivation analysis by producing a combined mini-xAOD stream. These changes will allow ATLAS to take advantage of the higher luminosity at Run 3 without overstraining processing and storage capabilities. They also require significant improvements to the underlying event store and the I/O framework to support them. These improvements include: 1) an overhaul of the Run 2 I/O framework to be thread-safe and minimize serial bottlenecks, 2) introduction of new immutable references for object navigation, which don’t rely on storage container entry number so data can be merged in-memory, 3) using filter decisions to annotate combined output stream to allow for fast event selection on input and 4) selecting optimized compression algorithms and settings to allow efficient reading of event selections.

ANALYSIS OF MEASURES ITEMS IN DEVELOPMENT OF INSTRUMENTS SELF-ASSESSMENT (RASCH MODELING APPLICATION)

This analysis aims to determine the quality of the instrument items that have been developed in the empirical test phase one. Tests were carried out on 46 items to 219 respondents in SMA Ksatrya Jakarta. The item quality is seen from the fit or not fit and the level of difficulty of the item that has been developed. The fit or unfit criteria are seen in INFIT and OUTFIT, both MNSQ and ZSTD, and Pt-Measure Correlation values. The level of difficulty of the item is seen in the entry number column which is indicated by the magnitude of the logit value and has been sorted from the hardest to the easiest. Based on the results of analysis with the help of software winstep obtained 39 items statement fit with the model and the number of respondents 194, the three criteria above (MNSQ, ZSTD, and Pt.Measure Correlation) has been met. This means that 39 items are valid. The result of the analysis also shows the most difficult item sequence is item 5 with logit value 63,32, and the easiest item is item 44 with logit value 36,13. The resulting fit instrument must have gone through several stages of analysis. When there are items that are not fit, the item is issued, as well as the respondent. So that obtained a set of measuring instruments that are valid / fit with the model and can be used for the purposes of assessment. Keyword: self-assessment, infit, outfit, ZSTD, and Rasch Model.

ANALYSIS OF MEASURES ITEMS IN DEVELOPMENT OF INSTRUMENTS SELF-ASSESSMENT (RASCH MODELING APPLICATION)

This analysis aims to determine the quality of the instrument items that have been developed in the empirical test phase one. Tests were carried out on 46 items to 219 respondents in SMA Ksatrya Jakarta. The item quality is seen from the fit or not fit and the level of difficulty of the item that has been developed. The fit or unfit criteria are seen in INFIT and OUTFIT, both MNSQ and ZSTD, and Pt-Measure Correlation values. The level of difficulty of the item is seen in the entry number column which is indicated by the magnitude of the logit value and has been sorted from the hardest to the easiest. Based on the results of analysis with the help of software winstep obtained 39 items statement fit with the model and the number of respondents 194, the three criteria above (MNSQ, ZSTD, and Pt.Measure Correlation) has been met. This means that 39 items are valid. The result of the analysis also shows the most difficult item sequence is item 5 with logit value 63,32, and the easiest item is item 44 with logit value 36,13. The resulting fit instrument must have gone through several stages of analysis. When there are items that are not fit, the item is issued, as well as the respondent. So that obtained a set of measuring instruments that are valid / fit with the model and can be used for the purposes of assessment. Keyword: self-assessment, infit, outfit, ZSTD, and Rasch Model.

Bibliographia Gnostica: Supplementum II/8.1

This is the first section of the eighth in the series of supplementary bibliographies to David M. Scholer's Nag Hammadi Bibliography 1970-1994 (Nag Hammadi and Manichaean Studies 32; Leiden: E.J. Brill, 1997). The second section will be published in issue 50.3 (2008). This supplement contains items published in 2002-2006 (and a few beyond) as well as earlier items which had not been previously listed. This supplement continues the numbering of Supplementum II/7 [Novum Testamentum 46 (2004), 46-77] and, thus, begins with number 10627 and contains 917 items. For new reviews of books previously listed, the author, a brief title and bibliography entry number of the book are given.

Bibliographia Gnostica: Supplementum II/8.2

This is the second section of the eighth in the series of supplementary bibliographies to David M. Scholer's Nag Hammadi Bibliography 1970-1994 (Nag Hammadi and Manichaean Studies 32; Leiden: E.J. Brill, 1997). The first section was published in issue 50.2 (2008). This supplement contains items published in 2002-2006 (and a few beyond) as well as earlier items which had not been previously listed. This supplement continues the numbering of Supplementum II/7 [Novum Testamentum 46 (2004), 46-77] and, thus, begins with number 10627 and contains 917 items. For new reviews of books previously listed, the author, a brief title and bibliography entry number of the book are given.