Independent resolutions for totally disconnected dynamical systems I: Algebraic case

This is the first out of two papers on independent resolutions for totally disconnected dynamical systems. In the present paper, we discuss independent resolutions from an algebraic point of view. We also present applications to group homology and cohomology. This first paper sets the stage for our second paper, where we explain how to use independent resolutions in K-theory computations for crossed products attached to totally disconnected dynamical systems.Comment: 26 pages; minor changes improving the expositio

Dax Chizum

Dax David Chisum was born in 1968 in Redondo Beach, California. Dax identifies as a gay, Caucasian, male and sees himself as belonging to the working class. He moved to Idaho at the age of one and was raised in the Wood River Valley, which helped to expose him to a great deal of diversity due to the high volume of tourism in the area. He didn’t have strong religious roots growing up, however when he came out at around the age of 20, his mother had a nervous breakdown and claimed that Dax had “broken her heart.” Now things have changed and Dax is an advocate for human rights at the Idaho Human Rights Education Center. During this interview, Dax touches on his life after coming out, how coming out affected his work for the Idaho Human Rights Education Center, he discusses where he feels most comfortable and uncomfortable as a gay man in Boise, what he feels are the biggest issues facing the Boise LGBTQ community as well as what are some of the biggest obstacles facing the Humans Rights Center in Boise.https://scholarworks.boisestate.edu/idlgbtq_oral_histories/1004/thumbnail.jp

Embodying the JACK Agent Architecture

Agent-based models of human operators rarely include explicit representations of the timing and accuracy of perception and action, although their accuracy is sometimes implicitly modelled by including random noise for observations and actions. In many situations though, the timing and accuracy of the person's perception and action significantly influence their overall performance on a task. Recently many cognitive architectures have been extended to include perceptual/motor capabilities, making them embodied, and they have since been successfully used to test and compare interface designs. This paper describes the implementation of a similar perceptual/motor system that uses and extends the JACK agent language. The resulting embodied architecture has been used to compare GUIs representing telephones, but has been designed to interact with any mouse-driven Java interface. The results clearly indicate the impact of poor design on performance, with the agent taking longer to perform the task on the more poorly designed telephone. Initial comparisons with human data show a close match, and more detailed comparisons are underway

Overvåking av Ytre Oslofjord - Bentosundersøkelser 2009. Fagrapport

Det ble i 2009 gjennomført undersøkelser på bløtbunn med SPI kamera og rammeundersøkelser i fjæra i Ytre Oslofjord. Generelt var bunnforholdene i de åpne delene av fjorden meget gode eller gode (tilstandsklasse I og II) og det er liten variasjon mellom årene 2007 til 2009 på de fleste stasjoner. Større problemområder er Drammensfjorden, Horten havn, Tønsberg, Frierfjorden og Iddefjorden. Til sammen ble det registrert 50 taksa av alger og 39 taksa av dyr på de 10 fjærestasjonene som ble undersøkt i 2009. I Larviksfjorden var det fattig med både alger og dyr, og det var her de største grønnalgeforekomstene ble registrert. Stasjonene i ytre Drammensfjord, i Larviksfjorden og i Løperen har lav saltholdighet i overflaten og det er sannsynligvis derfor de har få dyretaksa i det øvre nivåe

Overvåking av Ytre Oslofjord 2013. Årsrapport

Innenfor overvåkingen av Ytre Oslofjord ble det i 2013 gjennomført undersøkelser i vannmasser, på bløtbunn med SPI-kamera (Sediment Profile Imaging) og grabbing (faunaanalyser), samt dykkeundersøkelser på hardbunn. Stasjoner som ligger i de ytre delen av randsonen og på den vestre og ytre del av Oslofjorden har bedre miljøforhold i vannmassene enn de som ligger lengre inn i sidefjordene, lengre fra sentrale deler av fjorden. Nedre voksegrense til et utvalg av bunnlevende makroalger ble undersøkt ved Småholmane i Østfold og Sandsundholman og Vågøy i Telemark. Undersøkelsen viser at det var god status på Småholmane, god status på Sandsundholmen og meget god status på Vågøy. Generelt var tilstanden på bløtbunn i 2013 noe bedre enn tidligere rundt Tønsberg (Kanalen, Vestfjorden-nordre, Vestfjorden-søndre), noe dårligere i Iddefjordens hovedbasseng («meget dårlig»), mens det stort sett var likt med tidligere i Drammensfjorden-indre («meget dårlig»), Frierfjorden («moderat») og Leira («god»). En stor del av variasjonen mellom enkelte år forklares ved endring i belastning og uregelmessig utskifting av dypere vannmasser i fjordområder

Historical changes in the phenology of British Odonata are related to climate

Responses of biota to climate change take a number of forms including distributional shifts, behavioural changes and life history changes. This study examined an extensive set of biological records to investigate changes in the timing of life history transitions (specifically emergence) in British Odonata between 1960 and 2004. The results show that there has been a significant, consistent advance in phenology in the taxon as a whole over the period of warming that is mediated by life history traits. British odonates significantly advanced the leading edge (first quartile date) of the flight period by a mean of 1.51 ±0.060 (SEM, n=17) days per decade or 3.08±1.16 (SEM, n=17) days per degree rise in temperature when phylogeny is controlled for. This study represents the first review of changes in odonate phenology in relation to climate change. The results suggest that the damped temperature oscillations experienced by aquatic organisms compared with terrestrial organisms are sufficient to evoke phenological responses similar to those of purely terrestrial taxa

Fermi Surface reconstruction in the CDW state of CeTe3 observed by photoemission

CeTe3 is a layered compound where an incommensurate Charge Density Wave (CDW) opens a large gap (400 meV) in optimally nested regions of the Fermi Surface (FS), whereas other sections with poorer nesting remain ungapped. Through Angle-Resolved Photoemission, we identify bands backfolded according to the CDW periodicity. They define FS pockets formed by the intersection of the original FS and its CDW replica. Such pockets illustrate very directly the role of nesting in the CDW formation but they could not be detected so far in a CDW system. We address the reasons for the weak intensity of the folded bands, by comparing different foldings coexisting in CeTe3