Spatial and temporal patterns of coral bleaching around Buck Island Reef National Monument, St. Croix, U.S. Virgin Islands

Since 2001, biannual fish and habitat monitoring has been conducted for the shallow (> 30 m), colonized pavement and gorgonian dominated Buck Island Reef National Monument (BIRNM) St. Croix, USVI and adjacent waters. during October, 2005, widespread coral bleaching was observed within the ∼50 square-kilometer study area that was preceded by 10 wks of higher than average water temperatures (28.9–30.1 °C). Random transects (100 square meters) were conducted on linear reefs, patch reefs, bedrock, pavement, and scattered coral/rock habitats during October 2005, and April and October 2006, and species specific bleaching patterns were documented. During October 2005 approximately 51% of live coral cover was bleached. Nineteen of 23 coral species within 16 genera and two hydrocoral species exhibited signs of bleaching. Coral cover for Montastraea annularis and species of the genus Agaricia were the most affected, while other species exhibited variability in their susceptibility to bleaching. Bleaching was evident at all depths (1.5–28 m), was negatively correlated with depth, and positively correlated with habitat complexity. Bleaching was less prevalent at all depths and habitat types upon subsequent monitoring during April (15%) and October (3%) 2006. Four species and one genus did not exhibit signs of bleaching throughout the study period (Dendrogyra cylindrus, Eusmilia fastigata, Mussa angulosa, Mycetophyllia aliciae, Scolymia spp.).

Spatial and temporal patterns of coral bleaching around Buck Island Reef National Monument, St. Croix, U.S. Virgin Islands [poster]

Limited information currently exists on the recovery periods of bleached corals as well as the spatial extent, causative factors, and the overall impact of bleaching on coral reef ecosystems. During October, 2005, widespread coral bleaching was observed within Buck Island Reef National Monument (BUIS) St. Croix, USVI. The bleaching event was preceded by 10 weeks of higher than average water temperatures (28.9-30.1°C). Random transects (100 square meters) over hard bottom habitats (N=94) revealed that approximately 51% of live coral cover was bleached. Nineteen of 23 coral species within 16 genera and two hydrocoral species exhibited signs of bleaching; species-specific bleaching patterns were variable throughout the study area. Coral cover for Montastraea annularisand species of the genus Agariciawere the most affected, while other species exhibited variability to bleaching. Although a weak but significant negative relationship (r2=0.10, P=0.0220) was observed, bleaching was evident at all depths (1.5-28 m). Bleaching was spatially autocorrelated (P=0.001) and hot-spot analysis identified a cluster of high bleaching stations northeast of Buck Island. Bleaching was significantly reduced within all depth zones and habitat types upon subsequent monitoring during April (15%) and October (3%) 2006.

Voltage sensing buck converter-based technique for maximum photovoltaic solar energy delivery

A voltage sensing buck converter-based technique for maximum solar power delivery to a load is presented. While retaining the features and advantages of the incremental conductance algorithm, this technique is more desirable because of single sensor use. The technique operates by maximising power at the buck converter output instead of the input.

Violence and social memory in twentieth century Belfast:Stories of Buck Alec Robinson

This article explores the life and commemoration of Buck Alec Robinson. A feared loyalist killer in 1920s Belfast, in more recent times he has featured as a lion-keeping “character” on wall murals and in tourist guide books. Robinson is employed as a case study to investigate two separate but, in this case, interlinked historiographical debates. The first involves Norbert Elias’s analysis of the decline of violence. The second relates to discussion of the analysis of social memory in working class communities, with violence being placed therein. The article supports historical assessments suggesting that the “civilizing offensive” had an uneven impact. That point is usually made in the context of working class men. This article extends it to political elites in Belfast and probes their flirtations with violent hard men. The case is made that it is a mistake to assume the “civilizing” dynamic is to be understood as a teleological or top-down process.

More bang for your buck: Super-adiabatic quantum engines

The practical untenability of the quasi-static assumption makes any realistic engine intrinsically irreversible and its operating time finite, thus implying friction effects at short cycle times. An important technological goal is thus the design of maximally efficient engines working at the maximum possible power. We show that, by utilising shortcuts to adiabaticity in a quantum engine cycle, one can engineer a thermodynamic cycle working at finite power and zero friction. Our findings are illustrated using a harmonic oscillator undergoing a quantum Otto cycle.

Virginalistes anglais / William Byrd, Giles Farnaby, Martin Peereson, comp. ; Pauline Aubert, virginal

Comprend : The bells / William Byrd, comp. ; Pauline Aubert, virginal ; The new Sa-Hoo / Giles Farnaby, comp. ; Pauline Aubert, virginal ; The fall of the leafe / Martin Peereson [sic], comp. ; Pauline Aubert, virginal ; A toye / Giles Farnaby, comp. ; Pauline Aubert, virginal

Mr. Giles' speech, delivered in the Senate of the United States, on Thursday, 24th November, 1808, on the resolution of Mr. Hillhouse, to repeal the embargo laws. --

Caption title.

President G. T. "Buck" Smith presents Irvin C. "Ernie" Chapman with 50th year diploma at Commencement, 1983

President G. T. "Buck" Smith presents Irvin C. "Ernie" Chapman with 50th year diploma at Commencement, Chapman College, Orange, California, May 29, 1983.

George Argyros, Betty Hutton, and G. T. "Buck" Smith at the dedication of Hutton Sports Center

George Argyros, Betty Hutton Williams, and G. T. "Buck" Smith at the dedication of Hutton Sports Center, 219 E. Sycamore St., Chapman College, Orange, California, on Founders' Day, November 10, 1979. The Harold Hutton Sports Center, completed in 1978, is named in honor of this former trustee, and made possible by a gift from his widow, Betty Hutton Williams.

Mr. Giles' speech, delivered in the Senate of the United States, on Thursday, 24th November, 1808, on the resolution of Mr. Hillhouse, to repeal the embargo laws

Printed by Pool and Palfray

La educación en las novelas de Jean Marie de Buck.

Estudiar en las obras 'Dios hablará esta noche' y 'El silencio de un adolescente' de Jean Marie de Buck. Las principales ideas pedagógicas contenidas en estas novelas se reducen a: realismo pedagógico. El educando tiene múltiples posibilidades y la educación actuando sobre ellas produce resultados positivos. Por estos motivos, hay que mantener en el adolescente un alto nivel de exigencia en los aspectos personal, social y trascendente. La educación es una obra que se tiene que llevar a cabo en común entre el educando y los distintos educadores que le ayudan. Dios habla a través de las personas, de las cosas de los acontecimientos. Hay que fomentar en el educando una disposición de apertura al mensaje que se le dirige y que únicamente él puede realizar.