76,127 research outputs found
[Review of] Jon Michael Spencer. Sacred Symphony: The Chanted Sermon of the Black Preacher
In his latest book to date, Sacred Symphony; The Chanted Sermon of the Black Preacher, Spencer states in the introduction that there are seven musical elements that make up the chanted sermon and these include melody, rhythm, call and response, harmony, counterpoint, form, and improvisation. He not only states that these musical components appear in the chanted sermons, but he illustrates how they are manifested in the sermon event through sermons and/or testimonies of white male and female observers, ex-slaves, ministers, and scholars of black preaching
[Review of] Allen L. Woll and Randall M. Miller. Ethnic and Racial Images in American Film and Television: Historical Essays and Bibliography
Allen Woll and Randall Miller in Ethnic and Racial Images in American Film and Television have compiled in one volume the writings about the images of ethnic and racial groups in American television and film. Woll and Miller state in their Introduction that the purpose of their book was to attempt to unite the work (the nature and importance of mass media stereotypes and their effects on society) from a wide variety of disciplines, languages and fields of study in order to expand the vistas of scholarly research in this area. Ethnic and Racial Images is divided into twelve chapters, with each considering specific ethnic or racial groups: (in alphabetical order) Afro-Americans, Arabs, Asians, East Europeans and Russians, Germans, Hispanic Americans, Irish, Italians, Jews, and Native Americans. The first chapter is a general overview of the subject of racial and ethnic images and the final chapter is a kind of miscellaneous section entitled Others which includes Africans, Armenians, Dutch, East Indians, Greeks, Hawaiians, Louisiana Cajuns, Norwegians, Swedes, and Turks
The Persistence of Ethnicity in African American Popular Music: A Theology of Rap Music
The racial oppression of black people in many ways has fueled and shaped black musical forms in America. One example is the blues which originated in the rural South among poor, nonliterate, agrarian African Americans.[1] In the North the music became more formalized, and singers such as Gertrude Ma Rainey, Bessie Smith, Mamie Smith, Ida Cox, and Sarah Martin became known as the queens of the classic blues. Another musical genre is jazz, which was largely based on the twelve-bar blues harmonic structure and phrasing. It was more polished than the earlier New Orleans jazz at the turn of the century, and its major influences came from New York City, Chicago, and Kansas City. Finally, on the religious front, gospel music was in its early stages of development around the time early blues was evolving. Influenced by blues and jazz, gospel was revolutionary (and controversial) in its combination of drums and fast, rocking rhythms
SKYWAY '09: Awareness of the Sky/ The Sky as Awareness - International Light Festival, Impressions and Reflections on the Proceedings
Two artists, two astrophysicists, a historian of science, a musician, the Skyway Festival director and the Toruń 2016 director met over two days on the 15th and 16th of August in this beautiful gothic city to discuss the relationship between art and astrophysics. The aim of the sessions was to foster interdisciplinary understanding and achieve a consensus on methods and approaches for future collaborative work and cross-disciplinary production of art, writing and dissemination.Peer reviewe
Evaluation of Sampling Strategies on Load Estimation For Illinois River at Highway 59
This study investigated the precision and accuracy of the two load calculation techniques. The study compared total phosphorus loads calculated by integration of Arkansas Water Resources Center (AWRC) intensive sampling data to loads calculated by a regression technique (rating curve) using fewer data. The 1998 AWRC dataset from the Illinois River at Arkansas Highway 59 was sub-sampled in a manner to simulate fixed period monitoring schemes supplemented with storm sampling. The ESTIMATOR software program was used to calculate loads. These loads were compared to the integrated load. The error of the integrated load when the variation in concentration between samples is not linear and the sensitivity of the integrated load to sampling interval were also investigated. The results show that the central tendency of the ESTIMATOR loads is accurate when storm data are included, but that the 95% confidence interval represents up to +/- 30-40% difference from the integrated load for individual estimates. More frequent sampling and more samples lead to more accurate loads. The results indicate that the central tendency of load estimates would be accurate for a method that uses a regression model with 32 or more samples including storm samples
Stable oxygen and carbon isotope compositional fields for skeletal and diagenetic components in New Zealand Cenozoic nontropical carbonate sediments and limestones: a synthesis and review
The stable oxygen isotope composition (d¹⁸O) of a precipitated carbonate depends mainly on the isotope composition, salinity, and temperature of the host fluid, whereas the stable carbon isotope composition (d¹³C) reflects the source of CO2 for precipitation, such as meteoric or sea water, shell dissolution, or various biochemical origins, including microbial oxidation of organic matter and methane. Despite the potentially complex array of controls, natural waters tend to show a characteristic range of isotope values which in turn are mimicked or tracked by the carbonate minerals precipitated from them. Consequently, plots of d¹⁸O versus d¹³C for carbonate materials can help identify their depositional and/or diagenetic environment(s)
New shield for gamma-ray spectrometry
Gamma-ray shield that can be evacuated, refilled with a clean gas, and pressurized for exclusion of airborne radioactive contaminants effectively lowers background noise. Under working conditions, repeated evacuation and filling procedures have not adversely affected the sensitivity and resolution of the crystal detector
Strain engineered graphene using a nanostructured substrate: I Deformations
Using atomistic simulations we investigate the morphological properties of
graphene deposited on top of a nanostructured substrate. Sinusoidally
corrugated surfaces, steps, elongated trenches, one dimensional and cubic
barriers, spherical bubbles, Gaussian bump and Gaussian depression are
considered as support structures for graphene. The graphene-substrate
interaction is governed by van der Waals forces and the profile of the graphene
layer is determined by minimizing the energy using molecular dynamics
simulations. Based on the obtained optimum configurations, we found that: (i)
for graphene placed over sinusoidally corrugated substrates with corrugation
wave lengths longer than 2\,nm, the graphene sheet follows the substrate
pattern while for supported graphene it is always suspended across the peaks of
the substrate, (ii) the conformation of graphene to the substrate topography is
enhanced when increasing the energy parameter in the van der Waals model, (iii)
the adhesion of graphene into the trenches depends on the width of the trench
and on graphene's orientation, i.e. in contrast to a small width (3 nm)
nanoribbon with armchair edges, the one with zig-zag edges follows the
substrate profile, (iv) atomic scale graphene follows a Gaussian bump substrate
but not the substrate with a Gaussian depression, and (v) the adhesion energy
due to van der Waals interaction varies in the range [0.1-0.4] J/m^2.Comment: 12 pages and 16 figures, To appear in Phys. Rev.
Pyroclastic deposits and volcanic history of Mayor Island
The emergent summit of Mayor Island, Bay of Plenty, New Zealand, is a peralkaline rhyolite volcano constructed by: a sequence of lava flows, the Tutaretare Rhyolite Formation new; and pyroclastic deposits, the Oira Pyroclastite Formition (new). These 2 formations constitute the Mayor Island Group new. The pyroclastic deposits mantle most of the outer slopes of the island, in places exceeding 100 m in thickness, and also occur interbedded with lava flows of the main cone. The pyroclastics have been informally assigned on the basis of their compositional, welding and textural, and sedimentary structural characteristics to one or other of 15 lithotypes which may be related to particular modes of eruption and emplacement, of both airfall (phreatic, phreatomagmatic, phreatoplinian, and plinian types) and pyroclastic flow (ignimbrite, nuée ardente, and base surge types origins). A sixteenth lithotype comprises epiclastic deposits formed possibly by catastrophic overspill from an ancestral crater lake. Two new radiocarbon dates on logs from the pyroclastic deposits are recorded: (Wk105) 8000 ± 70 years B.P., and (Wk77) 6340 ± 190 years B.P. Recognition of the calcalkaline Rotoehu and possibly Rotoma Ashes on Mayor Island, together with the new radiocarbon dates, enables definition of 8 phases of major volcanic activity, each separated by relatively quiescent periods with erosion and paleosol formation. Volcanism commenced sometime prior to 42 000 years ago and has continued intermittently up to the eruption of the young dome lavas, possibly less than 1000 years ago. At present, only I Mayor Island-derived tephra has been identified on the mainland of the North Island, namely the Tuhua Tephra dated (Wk77) at source as 6340 ± 190 years B .P. However, the character and magnitude of several of the pyroclastic units on Mayor Island is such that recognition of other peralkaline tephras is anticipated in northern North Island
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