Seismic Performance of Steel Pipe Pile to Cap Beam Moment Resisting Connections

INE/AUTC 13.0

NAVEX: A space shuttle experiment with atomic clocks

A navigation and time transfer experiment (NAVEX) to be flown within the payload of the first German Spacelab mission D-1 is discussed. The objectives of the experiment are to synchronize distant ground stations with an accuracy of better than 10 nsec and to demonstrate one way ranging with an accuracy of better than 30 m. Spread spectrum signals are used and the related technique is tested. On board a Cs and a Rb clock is used. The relativistic effect of these clocks is about -25 microsec per day. On the ground at least two receiving stations and one transmitting-receiving station will be installed. The synchronization of the ground clocks by shuttle signals is compared to those achieved with clock transportations and with GPS measurements. A system description of this experiment is given containing details on the technical concept, the hardware and the planned data evaluation. The present state of the preparatory work is briefly reviewed

SHOP2: An HTN Planning System

The SHOP2 planning system received one of the awards for distinguished performance in the 2002 International Planning Competition. This paper describes the features of SHOP2 which enabled it to excel in the competition, especially those aspects of SHOP2 that deal with temporal and metric planning domains

Limits on the HI content of the dwarf galaxy Hydra II

Sensitive 21cm HI observations have been made with the Green Bank Telescope toward the newly-discovered Local Group dwarf galaxy Hydra II, which may lie within the leading arm of the Magellanic Stream. No neutral hydrogen was detected. Our 5-sigma limit of MHI < 210 solar masses for a 15 km/s linewidth gives a gas-to-luminosity ratio MHI/L_V < 2.6 x 10^{-2} Mo / Lo. The limits on HI mass and MHI/L_V are typical of dwarf galaxies found within a few hundred kpc of the Milky Way. Whatever the origin of Hydra II, its neutral gas properties are not unusual.Comment: Accepted for publication in Astronomy & Astrophysic

STRATEGI GURU MENGAJARI PERILAKU BERKOMITMEN SISWA KELAS X SMK HASAEL PURU DALAM PEMBELAJARAN PENJASORKES

This research is to describe the strategy of the teacher in behavior commitment teaching by students X vocational high school (SMK) Hasael puru on physical education learning process. There is the aim of study is to explain the strategy of teacher as the eduator on behavior commitment teaching by students physical sport education learning process. The method that used in this research is qualitative method, the technique which is used to collected the data is triangulation technique there are: documentation, interview,observation.the steps of analysing data are: reduction data, display data and verification. The triangulation data and the triangulation technique are used to test the validity of the data. The result of the study express about 6 findings there are : 1. Behavior commitment teaching, 2. The agreement and the aim of behavior &nbsp;commitment teaching, 3. Physical sport education learning process is to form the behavior commitment, 4. The strategy of behavior commitment teaching, 5. The manner to develop the behavior of commitment, 6. What kind of the characteric that be supposed from behavior commitment teachingPenelitian ini untuk mendeskripsikan Strategi Guru Mengajari Perilaku Berkomitmen Siswa kelas X SMK Hasael Puru Dalam Pembelajaran Penjasorkes. Adapun tujuan penelitian ini untuk menjelaskan strategi guru penjasorkes sebagai pendidik dalam mengajari perilaku berkomitmen siswa dalam pembelajaran penjasorkes.Metode yang digunakan adalah jenis kualitatif, dengan pengumpulan data penelitian diperoleh dengan teknik tringulasi dengan teknik pengumpulan data : dokumentasi, wawancara, dan observasi. Langkah menganalisis data adalah dengan data reduction (reduksi data), data display dan verivication. Untuk menguji keabsahan data dilakukan dengan menggunakan triangulasi data dan triangulasi metode. Hasil Penelitian ini mengungkapkan lima temuan yaitu: (1) Mengajari Perilaku Berkomitmen. (2) Adanya perjanjian dan tujuan dalam mengajari perilaku berkomitmen (3) Pembelajaran Penjasorkes membentuk perilaku berkomitmen. (4) Strategi dalam Mengajari Perilaku Berkomitmen. (5) Cara Menumbuhkan Perilaku Berkomitmen. (6) Karakter Seperti apa yang diharapkan dari Mengajari Perilaku Berkomitmen

Deforming the metric of cognitive maps distorts memory

Entorhinal grid cells, characterized by spatially periodic activity patterns, are thought to provide a universal spatial metric. However, grid cell firing-patterns are distorted in highly polarized environments such as trapezoids. Additionally, the functional role of grid cells in guiding behavior remains elusive. Here, we leverage immersive virtual reality using a novel motion platform to test the impact of environmental geometry on spatial memory in participants navigating a trapezoid arena. Object position memory in the trapezoid was degraded compared to a square control environment. Consistent with grid pattern distortions in rodents, this effect was more pronounced in the narrow than the broad part of the trapezoid. Remarkably, even outside of the encoding environment, these distortions persistently affected both navigated and judged distance estimates of never experienced paths between remembered positions and reconstructed memory maps. These distorted memory maps in turn explained behavior better than objective maps. Our findings demonstrate that environmental geometry interacts with human spatial memory similarly to how it affects rodent grid cells − thus strengthening the putative link between grid cells and behavior as well as cognitive functions beyond navigation